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authorkaloz <kaloz@3c298f89-4303-0410-b956-a3cf2f4a3e73>2005-12-15 09:05:57 +0000
committerkaloz <kaloz@3c298f89-4303-0410-b956-a3cf2f4a3e73>2005-12-15 09:05:57 +0000
commit8a3332a9b6164316b022f8e34d8f6d36a43a046c (patch)
treed1be3938ade293308b8ff28dc8b192d184f9e15e /openwrt/target/linux/linux-2.6/patches/generic
parent9d5362a82a7c66b67f7156c3a58d90b28b7115b7 (diff)
add my 2.6.15-rc5 port (yay) with devfs. The PCI subsystem is broken on Broadcom boards, we are working on it. Also upgrade iptables to 1.3.4
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@2683 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'openwrt/target/linux/linux-2.6/patches/generic')
-rw-r--r--openwrt/target/linux/linux-2.6/patches/generic/000-reenable_devfs.patch219
-rw-r--r--openwrt/target/linux/linux-2.6/patches/generic/003-net-b44-1.patch807
-rw-r--r--openwrt/target/linux/linux-2.6/patches/generic/003-net-b44-2.patch (renamed from openwrt/target/linux/linux-2.6/patches/generic/003-net-b44.patch)30
-rw-r--r--openwrt/target/linux/linux-2.6/patches/generic/100-netfilter_layer7.patch158
-rw-r--r--openwrt/target/linux/linux-2.6/patches/generic/101-mppe-mppc-1.3.patch1559
-rw-r--r--openwrt/target/linux/linux-2.6/patches/generic/104-pf_ring.patch5299
6 files changed, 1124 insertions, 6948 deletions
diff --git a/openwrt/target/linux/linux-2.6/patches/generic/000-reenable_devfs.patch b/openwrt/target/linux/linux-2.6/patches/generic/000-reenable_devfs.patch
new file mode 100644
index 0000000000..ce98def5da
--- /dev/null
+++ b/openwrt/target/linux/linux-2.6/patches/generic/000-reenable_devfs.patch
@@ -0,0 +1,219 @@
+diff -ur linux-2.6.15-rc5/drivers/mtd/mtd_blkdevs.c linux-2.6.15-rc5-openwrt/drivers/mtd/mtd_blkdevs.c
+--- linux-2.6.15-rc5/drivers/mtd/mtd_blkdevs.c 2005-12-04 06:10:42.000000000 +0100
++++ linux-2.6.15-rc5-openwrt/drivers/mtd/mtd_blkdevs.c 2005-12-15 07:53:20.000000000 +0100
+@@ -21,6 +21,9 @@
+ #include <linux/init.h>
+ #include <asm/semaphore.h>
+ #include <asm/uaccess.h>
++#ifdef CONFIG_DEVFS_FS
++#include <linux/devfs_fs_kernel.h>
++#endif
+
+ static LIST_HEAD(blktrans_majors);
+
+@@ -302,6 +305,11 @@
+ snprintf(gd->disk_name, sizeof(gd->disk_name),
+ "%s%d", tr->name, new->devnum);
+
++#ifdef CONFIG_DEVFS_FS
++ snprintf(gd->devfs_name, sizeof(gd->devfs_name),
++ "%s/%c", tr->name, (tr->part_bits?'a':'0') + new->devnum);
++#endif
++
+ /* 2.5 has capacity in units of 512 bytes while still
+ having BLOCK_SIZE_BITS set to 10. Just to keep us amused. */
+ set_capacity(gd, (new->size * new->blksize) >> 9);
+@@ -418,6 +426,10 @@
+ return ret;
+ }
+
++#ifdef CONFIG_DEVFS_FS
++ devfs_mk_dir(tr->name);
++#endif
++
+ INIT_LIST_HEAD(&tr->devs);
+ list_add(&tr->list, &blktrans_majors);
+
+@@ -450,6 +462,10 @@
+ tr->remove_dev(dev);
+ }
+
++#ifdef CONFIG_DEVFS_FS
++ devfs_remove(tr->name);
++#endif
++
+ blk_cleanup_queue(tr->blkcore_priv->rq);
+ unregister_blkdev(tr->major, tr->name);
+
+diff -ur linux-2.6.15-rc5/drivers/mtd/mtdchar.c linux-2.6.15-rc5-openwrt/drivers/mtd/mtdchar.c
+--- linux-2.6.15-rc5/drivers/mtd/mtdchar.c 2005-12-04 06:10:42.000000000 +0100
++++ linux-2.6.15-rc5-openwrt/drivers/mtd/mtdchar.c 2005-12-15 07:49:15.000000000 +0100
+@@ -6,7 +6,6 @@
+ */
+
+ #include <linux/config.h>
+-#include <linux/device.h>
+ #include <linux/fs.h>
+ #include <linux/init.h>
+ #include <linux/kernel.h>
+@@ -19,19 +18,33 @@
+
+ #include <asm/uaccess.h>
+
++#ifdef CONFIG_DEVFS_FS
++#include <linux/devfs_fs_kernel.h>
++#else
++#include <linux/device.h>
++
+ static struct class *mtd_class;
++#endif
+
+ static void mtd_notify_add(struct mtd_info* mtd)
+ {
+ if (!mtd)
+ return;
+
++#ifdef CONFIG_DEVFS_FS
++ devfs_mk_cdev(MKDEV(MTD_CHAR_MAJOR, mtd->index*2),
++ S_IFCHR | S_IRUGO | S_IWUGO, "mtd/%d", mtd->index);
++
++ devfs_mk_cdev(MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1),
++ S_IFCHR | S_IRUGO, "mtd/%dro", mtd->index);
++#else
+ class_device_create(mtd_class, NULL, MKDEV(MTD_CHAR_MAJOR, mtd->index*2),
+ NULL, "mtd%d", mtd->index);
+
+ class_device_create(mtd_class, NULL,
+ MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1),
+ NULL, "mtd%dro", mtd->index);
++#endif
+ }
+
+ static void mtd_notify_remove(struct mtd_info* mtd)
+@@ -39,8 +52,13 @@
+ if (!mtd)
+ return;
+
++#ifdef CONFIG_DEVFS_FS
++ devfs_remove("mtd/%d", mtd->index);
++ devfs_remove("mtd/%dro", mtd->index);
++#else
+ class_device_destroy(mtd_class, MKDEV(MTD_CHAR_MAJOR, mtd->index*2));
+ class_device_destroy(mtd_class, MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1));
++#endif
+ }
+
+ static struct mtd_notifier notifier = {
+@@ -48,6 +66,22 @@
+ .remove = mtd_notify_remove,
+ };
+
++#ifdef CONFIG_DEVFS_FS
++ static inline void mtdchar_devfs_init(void)
++ {
++ devfs_mk_dir("mtd");
++ register_mtd_user(&notifier);
++ }
++ static inline void mtdchar_devfs_exit(void)
++ {
++ unregister_mtd_user(&notifier);
++ devfs_remove("mtd");
++ }
++ #else /* !DEVFS */
++ #define mtdchar_devfs_init() do { } while(0)
++ #define mtdchar_devfs_exit() do { } while(0)
++#endif
++
+ /*
+ * We use file->private_data to store a pointer to the MTDdevice.
+ * Since alighment is at least 32 bits, we have 2 bits free for OTP
+@@ -643,6 +677,9 @@
+ return -EAGAIN;
+ }
+
++#ifdef CONFIG_DEVFS_FS
++ mtdchar_devfs_init();
++#else
+ mtd_class = class_create(THIS_MODULE, "mtd");
+
+ if (IS_ERR(mtd_class)) {
+@@ -652,13 +689,19 @@
+ }
+
+ register_mtd_user(&notifier);
++#endif
+ return 0;
+ }
+
+ static void __exit cleanup_mtdchar(void)
+ {
++
++#ifdef CONFIG_DEVFS_FS
++ mtdchar_devfs_exit();
++#else
+ unregister_mtd_user(&notifier);
+ class_destroy(mtd_class);
++#endif
+ unregister_chrdev(MTD_CHAR_MAJOR, "mtd");
+ }
+
+diff -ur linux-2.6.15-rc5/fs/Kconfig linux-2.6.15-rc5-openwrt/fs/Kconfig
+--- linux-2.6.15-rc5/fs/Kconfig 2005-12-04 06:10:42.000000000 +0100
++++ linux-2.6.15-rc5-openwrt/fs/Kconfig 2005-12-15 07:44:01.000000000 +0100
+@@ -772,6 +772,56 @@
+ help
+ Exports the dump image of crashed kernel in ELF format.
+
++config DEVFS_FS
++ bool "/dev file system support (OBSOLETE)"
++ depends on EXPERIMENTAL
++ help
++ This is support for devfs, a virtual file system (like /proc) which
++ provides the file system interface to device drivers, normally found
++ in /dev. Devfs does not depend on major and minor number
++ allocations. Device drivers register entries in /dev which then
++ appear automatically, which means that the system administrator does
++ not have to create character and block special device files in the
++ /dev directory using the mknod command (or MAKEDEV script) anymore.
++
++ This is work in progress. If you want to use this, you *must* read
++ the material in <file:Documentation/filesystems/devfs/>, especially
++ the file README there.
++
++ Note that devfs no longer manages /dev/pts! If you are using UNIX98
++ ptys, you will also need to mount the /dev/pts filesystem (devpts).
++
++ Note that devfs has been obsoleted by udev,
++ <http://www.kernel.org/pub/linux/utils/kernel/hotplug/>.
++ It has been stripped down to a bare minimum and is only provided for
++ legacy installations that use its naming scheme which is
++ unfortunately different from the names normal Linux installations
++ use.
++
++ If unsure, say N.
++
++config DEVFS_MOUNT
++ bool "Automatically mount at boot"
++ depends on DEVFS_FS
++ help
++ This option appears if you have CONFIG_DEVFS_FS enabled. Setting
++ this to 'Y' will make the kernel automatically mount devfs onto /dev
++ when the system is booted, before the init thread is started.
++ You can override this with the "devfs=nomount" boot option.
++
++ If unsure, say N.
++
++config DEVFS_DEBUG
++ bool "Debug devfs"
++ depends on DEVFS_FS
++ help
++ If you say Y here, then the /dev file system code will generate
++ debugging messages. See the file
++ <file:Documentation/filesystems/devfs/boot-options> for more
++ details.
++
++ If unsure, say N.
++
+ config SYSFS
+ bool "sysfs file system support" if EMBEDDED
+ default y
diff --git a/openwrt/target/linux/linux-2.6/patches/generic/003-net-b44-1.patch b/openwrt/target/linux/linux-2.6/patches/generic/003-net-b44-1.patch
new file mode 100644
index 0000000000..726ea542a3
--- /dev/null
+++ b/openwrt/target/linux/linux-2.6/patches/generic/003-net-b44-1.patch
@@ -0,0 +1,807 @@
+diff -ur linux-2.6.15-rc5/drivers/net/b44.c linux-2.6.15-rc5-openwrt/drivers/net/b44.c
+--- linux-2.6.15-rc5/drivers/net/b44.c 2005-12-04 06:10:42.000000000 +0100
++++ linux-2.6.15-rc5-openwrt/drivers/net/b44.c 2005-08-15 02:20:18.000000000 +0200
+@@ -18,7 +18,7 @@
+ #include <linux/pci.h>
+ #include <linux/delay.h>
+ #include <linux/init.h>
+-#include <linux/dma-mapping.h>
++#include <linux/version.h>
+
+ #include <asm/uaccess.h>
+ #include <asm/io.h>
+@@ -28,8 +28,8 @@
+
+ #define DRV_MODULE_NAME "b44"
+ #define PFX DRV_MODULE_NAME ": "
+-#define DRV_MODULE_VERSION "0.97"
+-#define DRV_MODULE_RELDATE "Nov 30, 2005"
++#define DRV_MODULE_VERSION "0.95"
++#define DRV_MODULE_RELDATE "Aug 3, 2004"
+
+ #define B44_DEF_MSG_ENABLE \
+ (NETIF_MSG_DRV | \
+@@ -101,35 +101,10 @@
+ static void b44_halt(struct b44 *);
+ static void b44_init_rings(struct b44 *);
+ static void b44_init_hw(struct b44 *);
+-
+-static int dma_desc_align_mask;
+-static int dma_desc_sync_size;
+-
+-static const char b44_gstrings[][ETH_GSTRING_LEN] = {
+-#define _B44(x...) # x,
+-B44_STAT_REG_DECLARE
+-#undef _B44
+-};
+-
+-static inline void b44_sync_dma_desc_for_device(struct pci_dev *pdev,
+- dma_addr_t dma_base,
+- unsigned long offset,
+- enum dma_data_direction dir)
+-{
+- dma_sync_single_range_for_device(&pdev->dev, dma_base,
+- offset & dma_desc_align_mask,
+- dma_desc_sync_size, dir);
+-}
+-
+-static inline void b44_sync_dma_desc_for_cpu(struct pci_dev *pdev,
+- dma_addr_t dma_base,
+- unsigned long offset,
+- enum dma_data_direction dir)
+-{
+- dma_sync_single_range_for_cpu(&pdev->dev, dma_base,
+- offset & dma_desc_align_mask,
+- dma_desc_sync_size, dir);
+-}
++static int b44_poll(struct net_device *dev, int *budget);
++#ifdef CONFIG_NET_POLL_CONTROLLER
++static void b44_poll_controller(struct net_device *dev);
++#endif
+
+ static inline unsigned long br32(const struct b44 *bp, unsigned long reg)
+ {
+@@ -503,10 +478,7 @@
+ for (reg = B44_TX_GOOD_O; reg <= B44_TX_PAUSE; reg += 4UL) {
+ *val++ += br32(bp, reg);
+ }
+-
+- /* Pad */
+- reg += 8*4UL;
+-
++ val = &bp->hw_stats.rx_good_octets;
+ for (reg = B44_RX_GOOD_O; reg <= B44_RX_NPAUSE; reg += 4UL) {
+ *val++ += br32(bp, reg);
+ }
+@@ -657,7 +629,7 @@
+
+ /* Hardware bug work-around, the chip is unable to do PCI DMA
+ to/from anything above 1GB :-( */
+- if (mapping + RX_PKT_BUF_SZ > B44_DMA_MASK) {
++ if(mapping+RX_PKT_BUF_SZ > B44_DMA_MASK) {
+ /* Sigh... */
+ pci_unmap_single(bp->pdev, mapping, RX_PKT_BUF_SZ,PCI_DMA_FROMDEVICE);
+ dev_kfree_skb_any(skb);
+@@ -667,7 +639,7 @@
+ mapping = pci_map_single(bp->pdev, skb->data,
+ RX_PKT_BUF_SZ,
+ PCI_DMA_FROMDEVICE);
+- if (mapping + RX_PKT_BUF_SZ > B44_DMA_MASK) {
++ if(mapping+RX_PKT_BUF_SZ > B44_DMA_MASK) {
+ pci_unmap_single(bp->pdev, mapping, RX_PKT_BUF_SZ,PCI_DMA_FROMDEVICE);
+ dev_kfree_skb_any(skb);
+ return -ENOMEM;
+@@ -696,11 +668,6 @@
+ dp->ctrl = cpu_to_le32(ctrl);
+ dp->addr = cpu_to_le32((u32) mapping + bp->rx_offset + bp->dma_offset);
+
+- if (bp->flags & B44_FLAG_RX_RING_HACK)
+- b44_sync_dma_desc_for_device(bp->pdev, bp->rx_ring_dma,
+- dest_idx * sizeof(dp),
+- DMA_BIDIRECTIONAL);
+-
+ return RX_PKT_BUF_SZ;
+ }
+
+@@ -725,11 +692,6 @@
+ pci_unmap_addr_set(dest_map, mapping,
+ pci_unmap_addr(src_map, mapping));
+
+- if (bp->flags & B44_FLAG_RX_RING_HACK)
+- b44_sync_dma_desc_for_cpu(bp->pdev, bp->rx_ring_dma,
+- src_idx * sizeof(src_desc),
+- DMA_BIDIRECTIONAL);
+-
+ ctrl = src_desc->ctrl;
+ if (dest_idx == (B44_RX_RING_SIZE - 1))
+ ctrl |= cpu_to_le32(DESC_CTRL_EOT);
+@@ -738,14 +700,8 @@
+
+ dest_desc->ctrl = ctrl;
+ dest_desc->addr = src_desc->addr;
+-
+ src_map->skb = NULL;
+
+- if (bp->flags & B44_FLAG_RX_RING_HACK)
+- b44_sync_dma_desc_for_device(bp->pdev, bp->rx_ring_dma,
+- dest_idx * sizeof(dest_desc),
+- DMA_BIDIRECTIONAL);
+-
+ pci_dma_sync_single_for_device(bp->pdev, src_desc->addr,
+ RX_PKT_BUF_SZ,
+ PCI_DMA_FROMDEVICE);
+@@ -894,10 +850,11 @@
+ {
+ struct net_device *dev = dev_id;
+ struct b44 *bp = netdev_priv(dev);
++ unsigned long flags;
+ u32 istat, imask;
+ int handled = 0;
+
+- spin_lock(&bp->lock);
++ spin_lock_irqsave(&bp->lock, flags);
+
+ istat = br32(bp, B44_ISTAT);
+ imask = br32(bp, B44_IMASK);
+@@ -908,12 +865,6 @@
+ istat &= imask;
+ if (istat) {
+ handled = 1;
+-
+- if (unlikely(!netif_running(dev))) {
+- printk(KERN_INFO "%s: late interrupt.\n", dev->name);
+- goto irq_ack;
+- }
+-
+ if (netif_rx_schedule_prep(dev)) {
+ /* NOTE: These writes are posted by the readback of
+ * the ISTAT register below.
+@@ -926,11 +877,10 @@
+ dev->name);
+ }
+
+-irq_ack:
+ bw32(bp, B44_ISTAT, istat);
+ br32(bp, B44_ISTAT);
+ }
+- spin_unlock(&bp->lock);
++ spin_unlock_irqrestore(&bp->lock, flags);
+ return IRQ_RETVAL(handled);
+ }
+
+@@ -958,7 +908,6 @@
+ {
+ struct b44 *bp = netdev_priv(dev);
+ struct sk_buff *bounce_skb;
+- int rc = NETDEV_TX_OK;
+ dma_addr_t mapping;
+ u32 len, entry, ctrl;
+
+@@ -968,28 +917,29 @@
+ /* This is a hard error, log it. */
+ if (unlikely(TX_BUFFS_AVAIL(bp) < 1)) {
+ netif_stop_queue(dev);
++ spin_unlock_irq(&bp->lock);
+ printk(KERN_ERR PFX "%s: BUG! Tx Ring full when queue awake!\n",
+ dev->name);
+- goto err_out;
++ return 1;
+ }
+
+ mapping = pci_map_single(bp->pdev, skb->data, len, PCI_DMA_TODEVICE);
+- if (mapping + len > B44_DMA_MASK) {
++ if(mapping+len > B44_DMA_MASK) {
+ /* Chip can't handle DMA to/from >1GB, use bounce buffer */
+ pci_unmap_single(bp->pdev, mapping, len, PCI_DMA_TODEVICE);
+
+ bounce_skb = __dev_alloc_skb(TX_PKT_BUF_SZ,
+ GFP_ATOMIC|GFP_DMA);
+ if (!bounce_skb)
+- goto err_out;
++ return NETDEV_TX_BUSY;
+
+ mapping = pci_map_single(bp->pdev, bounce_skb->data,
+ len, PCI_DMA_TODEVICE);
+- if (mapping + len > B44_DMA_MASK) {
++ if(mapping+len > B44_DMA_MASK) {
+ pci_unmap_single(bp->pdev, mapping,
+ len, PCI_DMA_TODEVICE);
+ dev_kfree_skb_any(bounce_skb);
+- goto err_out;
++ return NETDEV_TX_BUSY;
+ }
+
+ memcpy(skb_put(bounce_skb, len), skb->data, skb->len);
+@@ -1009,11 +959,6 @@
+ bp->tx_ring[entry].ctrl = cpu_to_le32(ctrl);
+ bp->tx_ring[entry].addr = cpu_to_le32((u32) mapping+bp->dma_offset);
+
+- if (bp->flags & B44_FLAG_TX_RING_HACK)
+- b44_sync_dma_desc_for_device(bp->pdev, bp->tx_ring_dma,
+- entry * sizeof(bp->tx_ring[0]),
+- DMA_TO_DEVICE);
+-
+ entry = NEXT_TX(entry);
+
+ bp->tx_prod = entry;
+@@ -1029,16 +974,11 @@
+ if (TX_BUFFS_AVAIL(bp) < 1)
+ netif_stop_queue(dev);
+
+- dev->trans_start = jiffies;
+-
+-out_unlock:
+ spin_unlock_irq(&bp->lock);
+
+- return rc;
++ dev->trans_start = jiffies;
+
+-err_out:
+- rc = NETDEV_TX_BUSY;
+- goto out_unlock;
++ return 0;
+ }
+
+ static int b44_change_mtu(struct net_device *dev, int new_mtu)
+@@ -1112,7 +1052,8 @@
+ *
+ * The chip has been shut down and the driver detached from
+ * the networking, so no interrupts or new tx packets will
+- * end up in the driver.
++ * end up in the driver. bp->lock is not held and we are not
++ * in an interrupt context and thus may sleep.
+ */
+ static void b44_init_rings(struct b44 *bp)
+ {
+@@ -1123,16 +1064,6 @@
+ memset(bp->rx_ring, 0, B44_RX_RING_BYTES);
+ memset(bp->tx_ring, 0, B44_TX_RING_BYTES);
+
+- if (bp->flags & B44_FLAG_RX_RING_HACK)
+- dma_sync_single_for_device(&bp->pdev->dev, bp->rx_ring_dma,
+- DMA_TABLE_BYTES,
+- PCI_DMA_BIDIRECTIONAL);
+-
+- if (bp->flags & B44_FLAG_TX_RING_HACK)
+- dma_sync_single_for_device(&bp->pdev->dev, bp->tx_ring_dma,
+- DMA_TABLE_BYTES,
+- PCI_DMA_TODEVICE);
+-
+ for (i = 0; i < bp->rx_pending; i++) {
+ if (b44_alloc_rx_skb(bp, -1, i) < 0)
+ break;
+@@ -1145,33 +1076,23 @@
+ */
+ static void b44_free_consistent(struct b44 *bp)
+ {
+- kfree(bp->rx_buffers);
+- bp->rx_buffers = NULL;
+- kfree(bp->tx_buffers);
+- bp->tx_buffers = NULL;
++ if (bp->rx_buffers) {
++ kfree(bp->rx_buffers);
++ bp->rx_buffers = NULL;
++ }
++ if (bp->tx_buffers) {
++ kfree(bp->tx_buffers);
++ bp->tx_buffers = NULL;
++ }
+ if (bp->rx_ring) {
+- if (bp->flags & B44_FLAG_RX_RING_HACK) {
+- dma_unmap_single(&bp->pdev->dev, bp->rx_ring_dma,
+- DMA_TABLE_BYTES,
+- DMA_BIDIRECTIONAL);
+- kfree(bp->rx_ring);
+- } else
+- pci_free_consistent(bp->pdev, DMA_TABLE_BYTES,
+- bp->rx_ring, bp->rx_ring_dma);
++ pci_free_consistent(bp->pdev, DMA_TABLE_BYTES,
++ bp->rx_ring, bp->rx_ring_dma);
+ bp->rx_ring = NULL;
+- bp->flags &= ~B44_FLAG_RX_RING_HACK;
+ }
+ if (bp->tx_ring) {
+- if (bp->flags & B44_FLAG_TX_RING_HACK) {
+- dma_unmap_single(&bp->pdev->dev, bp->tx_ring_dma,
+- DMA_TABLE_BYTES,
+- DMA_TO_DEVICE);
+- kfree(bp->tx_ring);
+- } else
+- pci_free_consistent(bp->pdev, DMA_TABLE_BYTES,
+- bp->tx_ring, bp->tx_ring_dma);
++ pci_free_consistent(bp->pdev, DMA_TABLE_BYTES,
++ bp->tx_ring, bp->tx_ring_dma);
+ bp->tx_ring = NULL;
+- bp->flags &= ~B44_FLAG_TX_RING_HACK;
+ }
+ }
+
+@@ -1184,67 +1105,25 @@
+ int size;
+
+ size = B44_RX_RING_SIZE * sizeof(struct ring_info);
+- bp->rx_buffers = kzalloc(size, GFP_KERNEL);
++ bp->rx_buffers = kmalloc(size, GFP_KERNEL);
+ if (!bp->rx_buffers)
+ goto out_err;
++ memset(bp->rx_buffers, 0, size);
+
+ size = B44_TX_RING_SIZE * sizeof(struct ring_info);
+- bp->tx_buffers = kzalloc(size, GFP_KERNEL);
++ bp->tx_buffers = kmalloc(size, GFP_KERNEL);
+ if (!bp->tx_buffers)
+ goto out_err;
++ memset(bp->tx_buffers, 0, size);
+
+ size = DMA_TABLE_BYTES;
+ bp->rx_ring = pci_alloc_consistent(bp->pdev, size, &bp->rx_ring_dma);
+- if (!bp->rx_ring) {
+- /* Allocation may have failed due to pci_alloc_consistent
+- insisting on use of GFP_DMA, which is more restrictive
+- than necessary... */
+- struct dma_desc *rx_ring;
+- dma_addr_t rx_ring_dma;
+-
+- rx_ring = kzalloc(size, GFP_KERNEL);
+- if (!rx_ring)
+- goto out_err;
+-
+- rx_ring_dma = dma_map_single(&bp->pdev->dev, rx_ring,
+- DMA_TABLE_BYTES,
+- DMA_BIDIRECTIONAL);
+-
+- if (rx_ring_dma + size > B44_DMA_MASK) {
+- kfree(rx_ring);
+- goto out_err;
+- }
+-
+- bp->rx_ring = rx_ring;
+- bp->rx_ring_dma = rx_ring_dma;
+- bp->flags |= B44_FLAG_RX_RING_HACK;
+- }
++ if (!bp->rx_ring)
++ goto out_err;
+
+ bp->tx_ring = pci_alloc_consistent(bp->pdev, size, &bp->tx_ring_dma);
+- if (!bp->tx_ring) {
+- /* Allocation may have failed due to pci_alloc_consistent
+- insisting on use of GFP_DMA, which is more restrictive
+- than necessary... */
+- struct dma_desc *tx_ring;
+- dma_addr_t tx_ring_dma;
+-
+- tx_ring = kzalloc(size, GFP_KERNEL);
+- if (!tx_ring)
+- goto out_err;
+-
+- tx_ring_dma = dma_map_single(&bp->pdev->dev, tx_ring,
+- DMA_TABLE_BYTES,
+- DMA_TO_DEVICE);
+-
+- if (tx_ring_dma + size > B44_DMA_MASK) {
+- kfree(tx_ring);
+- goto out_err;
+- }
+-
+- bp->tx_ring = tx_ring;
+- bp->tx_ring_dma = tx_ring_dma;
+- bp->flags |= B44_FLAG_TX_RING_HACK;
+- }
++ if (!bp->tx_ring)
++ goto out_err;
+
+ return 0;
+
+@@ -1394,21 +1273,19 @@
+
+ err = b44_alloc_consistent(bp);
+ if (err)
+- goto out;
++ return err;
++
++ err = request_irq(dev->irq, b44_interrupt, SA_SHIRQ, dev->name, dev);
++ if (err)
++ goto err_out_free;
++
++ spin_lock_irq(&bp->lock);
+
+ b44_init_rings(bp);
+ b44_init_hw(bp);
++ bp->flags |= B44_FLAG_INIT_COMPLETE;
+
+- netif_carrier_off(dev);
+- b44_check_phy(bp);
+-
+- err = request_irq(dev->irq, b44_interrupt, SA_SHIRQ, dev->name, dev);
+- if (unlikely(err < 0)) {
+- b44_chip_reset(bp);
+- b44_free_rings(bp);
+- b44_free_consistent(bp);
+- goto out;
+- }
++ spin_unlock_irq(&bp->lock);
+
+ init_timer(&bp->timer);
+ bp->timer.expires = jiffies + HZ;
+@@ -1417,8 +1294,11 @@
+ add_timer(&bp->timer);
+
+ b44_enable_ints(bp);
+- netif_start_queue(dev);
+-out:
++
++ return 0;
++
++err_out_free:
++ b44_free_consistent(bp);
+ return err;
+ }
+
+@@ -1453,8 +1333,6 @@
+
+ netif_stop_queue(dev);
+
+- netif_poll_disable(dev);
+-
+ del_timer_sync(&bp->timer);
+
+ spin_lock_irq(&bp->lock);
+@@ -1464,14 +1342,13 @@
+ #endif
+ b44_halt(bp);
+ b44_free_rings(bp);
++ bp->flags &= ~B44_FLAG_INIT_COMPLETE;
+ netif_carrier_off(bp->dev);
+
+ spin_unlock_irq(&bp->lock);
+
+ free_irq(dev->irq, dev);
+
+- netif_poll_enable(dev);
+-
+ b44_free_consistent(bp);
+
+ return 0;
+@@ -1536,6 +1413,8 @@
+ {
+ struct b44 *bp = netdev_priv(dev);
+ u32 val;
++ int i=0;
++ unsigned char zero[6] = {0,0,0,0,0,0};
+
+ val = br32(bp, B44_RXCONFIG);
+ val &= ~(RXCONFIG_PROMISC | RXCONFIG_ALLMULTI);
+@@ -1543,17 +1422,14 @@
+ val |= RXCONFIG_PROMISC;
+ bw32(bp, B44_RXCONFIG, val);
+ } else {
+- unsigned char zero[6] = {0, 0, 0, 0, 0, 0};
+- int i = 0;
+-
+ __b44_set_mac_addr(bp);
+
+ if (dev->flags & IFF_ALLMULTI)
+ val |= RXCONFIG_ALLMULTI;
+ else
+- i = __b44_load_mcast(bp, dev);
++ i=__b44_load_mcast(bp, dev);
+
+- for (; i < 64; i++) {
++ for(;i<64;i++) {
+ __b44_cam_write(bp, zero, i);
+ }
+ bw32(bp, B44_RXCONFIG, val);
+@@ -1617,7 +1493,7 @@
+ {
+ struct b44 *bp = netdev_priv(dev);
+
+- if (!netif_running(dev))
++ if (!(bp->flags & B44_FLAG_INIT_COMPLETE))
+ return -EAGAIN;
+ cmd->supported = (SUPPORTED_Autoneg);
+ cmd->supported |= (SUPPORTED_100baseT_Half |
+@@ -1628,14 +1504,14 @@
+
+ cmd->advertising = 0;
+ if (bp->flags & B44_FLAG_ADV_10HALF)
+- cmd->advertising |= ADVERTISED_10baseT_Half;
++ cmd->advertising |= ADVERTISE_10HALF;
+ if (bp->flags & B44_FLAG_ADV_10FULL)
+- cmd->advertising |= ADVERTISED_10baseT_Full;
++ cmd->advertising |= ADVERTISE_10FULL;
+ if (bp->flags & B44_FLAG_ADV_100HALF)
+- cmd->advertising |= ADVERTISED_100baseT_Half;
++ cmd->advertising |= ADVERTISE_100HALF;
+ if (bp->flags & B44_FLAG_ADV_100FULL)
+- cmd->advertising |= ADVERTISED_100baseT_Full;
+- cmd->advertising |= ADVERTISED_Pause | ADVERTISED_Asym_Pause;
++ cmd->advertising |= ADVERTISE_100FULL;
++ cmd->advertising |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+ cmd->speed = (bp->flags & B44_FLAG_100_BASE_T) ?
+ SPEED_100 : SPEED_10;
+ cmd->duplex = (bp->flags & B44_FLAG_FULL_DUPLEX) ?
+@@ -1655,7 +1531,7 @@
+ {
+ struct b44 *bp = netdev_priv(dev);
+
+- if (!netif_running(dev))
++ if (!(bp->flags & B44_FLAG_INIT_COMPLETE))
+ return -EAGAIN;
+
+ /* We do not support gigabit. */
+@@ -1785,37 +1661,6 @@
+ return 0;
+ }
+
+-static void b44_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+-{
+- switch(stringset) {
+- case ETH_SS_STATS:
+- memcpy(data, *b44_gstrings, sizeof(b44_gstrings));
+- break;
+- }
+-}
+-
+-static int b44_get_stats_count(struct net_device *dev)
+-{
+- return ARRAY_SIZE(b44_gstrings);
+-}
+-
+-static void b44_get_ethtool_stats(struct net_device *dev,
+- struct ethtool_stats *stats, u64 *data)
+-{
+- struct b44 *bp = netdev_priv(dev);
+- u32 *val = &bp->hw_stats.tx_good_octets;
+- u32 i;
+-
+- spin_lock_irq(&bp->lock);
+-
+- b44_stats_update(bp);
+-
+- for (i = 0; i < ARRAY_SIZE(b44_gstrings); i++)
+- *data++ = *val++;
+-
+- spin_unlock_irq(&bp->lock);
+-}
+-
+ static struct ethtool_ops b44_ethtool_ops = {
+ .get_drvinfo = b44_get_drvinfo,
+ .get_settings = b44_get_settings,
+@@ -1828,25 +1673,18 @@
+ .set_pauseparam = b44_set_pauseparam,
+ .get_msglevel = b44_get_msglevel,
+ .set_msglevel = b44_set_msglevel,
+- .get_strings = b44_get_strings,
+- .get_stats_count = b44_get_stats_count,
+- .get_ethtool_stats = b44_get_ethtool_stats,
+- .get_perm_addr = ethtool_op_get_perm_addr,
+ };
+
+ static int b44_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+ {
+ struct mii_ioctl_data *data = if_mii(ifr);
+ struct b44 *bp = netdev_priv(dev);
+- int err = -EINVAL;
+-
+- if (!netif_running(dev))
+- goto out;
++ int err;
+
+ spin_lock_irq(&bp->lock);
+ err = generic_mii_ioctl(&bp->mii_if, data, cmd, NULL);
+ spin_unlock_irq(&bp->lock);
+-out:
++
+ return err;
+ }
+
+@@ -1877,7 +1715,6 @@
+ bp->dev->dev_addr[3] = eeprom[80];
+ bp->dev->dev_addr[4] = eeprom[83];
+ bp->dev->dev_addr[5] = eeprom[82];
+- memcpy(bp->dev->perm_addr, bp->dev->dev_addr, bp->dev->addr_len);
+
+ bp->phy_addr = eeprom[90] & 0x1f;
+
+@@ -1942,9 +1779,9 @@
+
+ err = pci_set_consistent_dma_mask(pdev, (u64) B44_DMA_MASK);
+ if (err) {
+- printk(KERN_ERR PFX "No usable DMA configuration, "
+- "aborting.\n");
+- goto err_out_free_res;
++ printk(KERN_ERR PFX "No usable DMA configuration, "
++ "aborting.\n");
++ goto err_out_free_res;
+ }
+
+ b44reg_base = pci_resource_start(pdev, 0);
+@@ -1966,8 +1803,10 @@
+ bp = netdev_priv(dev);
+ bp->pdev = pdev;
+ bp->dev = dev;
+-
+- bp->msg_enable = netif_msg_init(b44_debug, B44_DEF_MSG_ENABLE);
++ if (b44_debug >= 0)
++ bp->msg_enable = (1 << b44_debug) - 1;
++ else
++ bp->msg_enable = B44_DEF_MSG_ENABLE;
+
+ spin_lock_init(&bp->lock);
+
+@@ -2057,14 +1896,17 @@
+ static void __devexit b44_remove_one(struct pci_dev *pdev)
+ {
+ struct net_device *dev = pci_get_drvdata(pdev);
+- struct b44 *bp = netdev_priv(dev);
+
+- unregister_netdev(dev);
+- iounmap(bp->regs);
+- free_netdev(dev);
+- pci_release_regions(pdev);
+- pci_disable_device(pdev);
+- pci_set_drvdata(pdev, NULL);
++ if (dev) {
++ struct b44 *bp = netdev_priv(dev);
++
++ unregister_netdev(dev);
++ iounmap(bp->regs);
++ free_netdev(dev);
++ pci_release_regions(pdev);
++ pci_disable_device(pdev);
++ pci_set_drvdata(pdev, NULL);
++ }
+ }
+
+ static int b44_suspend(struct pci_dev *pdev, pm_message_t state)
+@@ -2085,9 +1927,6 @@
+ b44_free_rings(bp);
+
+ spin_unlock_irq(&bp->lock);
+-
+- free_irq(dev->irq, dev);
+- pci_disable_device(pdev);
+ return 0;
+ }
+
+@@ -2097,15 +1936,10 @@
+ struct b44 *bp = netdev_priv(dev);
+
+ pci_restore_state(pdev);
+- pci_enable_device(pdev);
+- pci_set_master(pdev);
+
+ if (!netif_running(dev))
+ return 0;
+
+- if (request_irq(dev->irq, b44_interrupt, SA_SHIRQ, dev->name, dev))
+- printk(KERN_ERR PFX "%s: request_irq failed\n", dev->name);
+-
+ spin_lock_irq(&bp->lock);
+
+ b44_init_rings(bp);
+@@ -2117,7 +1951,6 @@
+ add_timer(&bp->timer);
+
+ b44_enable_ints(bp);
+- netif_wake_queue(dev);
+ return 0;
+ }
+
+@@ -2132,12 +1965,6 @@
+
+ static int __init b44_init(void)
+ {
+- unsigned int dma_desc_align_size = dma_get_cache_alignment();
+-
+- /* Setup paramaters for syncing RX/TX DMA descriptors */
+- dma_desc_align_mask = ~(dma_desc_align_size - 1);
+- dma_desc_sync_size = max(dma_desc_align_size, sizeof(struct dma_desc));
+-
+ return pci_module_init(&b44_driver);
+ }
+
+diff -ur linux-2.6.15-rc5/drivers/net/b44.h linux-2.6.15-rc5-openwrt/drivers/net/b44.h
+--- linux-2.6.15-rc5/drivers/net/b44.h 2005-12-04 06:10:42.000000000 +0100
++++ linux-2.6.15-rc5-openwrt/drivers/net/b44.h 2005-08-15 02:20:18.000000000 +0200
+@@ -346,63 +346,29 @@
+
+ #define B44_MCAST_TABLE_SIZE 32
+
+-#define B44_STAT_REG_DECLARE \
+- _B44(tx_good_octets) \
+- _B44(tx_good_pkts) \
+- _B44(tx_octets) \
+- _B44(tx_pkts) \
+- _B44(tx_broadcast_pkts) \
+- _B44(tx_multicast_pkts) \
+- _B44(tx_len_64) \
+- _B44(tx_len_65_to_127) \
+- _B44(tx_len_128_to_255) \
+- _B44(tx_len_256_to_511) \
+- _B44(tx_len_512_to_1023) \
+- _B44(tx_len_1024_to_max) \
+- _B44(tx_jabber_pkts) \
+- _B44(tx_oversize_pkts) \
+- _B44(tx_fragment_pkts) \
+- _B44(tx_underruns) \
+- _B44(tx_total_cols) \
+- _B44(tx_single_cols) \
+- _B44(tx_multiple_cols) \
+- _B44(tx_excessive_cols) \
+- _B44(tx_late_cols) \
+- _B44(tx_defered) \
+- _B44(tx_carrier_lost) \
+- _B44(tx_pause_pkts) \
+- _B44(rx_good_octets) \
+- _B44(rx_good_pkts) \
+- _B44(rx_octets) \
+- _B44(rx_pkts) \
+- _B44(rx_broadcast_pkts) \
+- _B44(rx_multicast_pkts) \
+- _B44(rx_len_64) \
+- _B44(rx_len_65_to_127) \
+- _B44(rx_len_128_to_255) \
+- _B44(rx_len_256_to_511) \
+- _B44(rx_len_512_to_1023) \
+- _B44(rx_len_1024_to_max) \
+- _B44(rx_jabber_pkts) \
+- _B44(rx_oversize_pkts) \
+- _B44(rx_fragment_pkts) \
+- _B44(rx_missed_pkts) \
+- _B44(rx_crc_align_errs) \
+- _B44(rx_undersize) \
+- _B44(rx_crc_errs) \
+- _B44(rx_align_errs) \
+- _B44(rx_symbol_errs) \
+- _B44(rx_pause_pkts) \
+- _B44(rx_nonpause_pkts)
+-
+ /* SW copy of device statistics, kept up to date by periodic timer
+- * which probes HW values. Check b44_stats_update if you mess with
+- * the layout
++ * which probes HW values. Must have same relative layout as HW
++ * register above, because b44_stats_update depends upon this.
+ */
+ struct b44_hw_stats {
+-#define _B44(x) u32 x;
+-B44_STAT_REG_DECLARE
+-#undef _B44
++ u32 tx_good_octets, tx_good_pkts, tx_octets;
++ u32 tx_pkts, tx_broadcast_pkts, tx_multicast_pkts;
++ u32 tx_len_64, tx_len_65_to_127, tx_len_128_to_255;
++ u32 tx_len_256_to_511, tx_len_512_to_1023, tx_len_1024_to_max;
++ u32 tx_jabber_pkts, tx_oversize_pkts, tx_fragment_pkts;
++ u32 tx_underruns, tx_total_cols, tx_single_cols;
++ u32 tx_multiple_cols, tx_excessive_cols, tx_late_cols;
++ u32 tx_defered, tx_carrier_lost, tx_pause_pkts;
++ u32 __pad1[8];
++
++ u32 rx_good_octets, rx_good_pkts, rx_octets;
++ u32 rx_pkts, rx_broadcast_pkts, rx_multicast_pkts;
++ u32 rx_len_64, rx_len_65_to_127, rx_len_128_to_255;
++ u32 rx_len_256_to_511, rx_len_512_to_1023, rx_len_1024_to_max;
++ u32 rx_jabber_pkts, rx_oversize_pkts, rx_fragment_pkts;
++ u32 rx_missed_pkts, rx_crc_align_errs, rx_undersize;
++ u32 rx_crc_errs, rx_align_errs, rx_symbol_errs;
++ u32 rx_pause_pkts, rx_nonpause_pkts;
+ };
+
+ struct b44 {
+@@ -420,6 +386,7 @@
+
+ u32 dma_offset;
+ u32 flags;
++#define B44_FLAG_INIT_COMPLETE 0x00000001
+ #define B44_FLAG_BUGGY_TXPTR 0x00000002
+ #define B44_FLAG_REORDER_BUG 0x00000004
+ #define B44_FLAG_PAUSE_AUTO 0x00008000
+@@ -433,8 +400,6 @@
+ #define B44_FLAG_ADV_100HALF 0x04000000
+ #define B44_FLAG_ADV_100FULL 0x08000000
+ #define B44_FLAG_INTERNAL_PHY 0x10000000
+-#define B44_FLAG_RX_RING_HACK 0x20000000
+-#define B44_FLAG_TX_RING_HACK 0x40000000
+
+ u32 rx_offset;
+
diff --git a/openwrt/target/linux/linux-2.6/patches/generic/003-net-b44.patch b/openwrt/target/linux/linux-2.6/patches/generic/003-net-b44-2.patch
index 17f82b69a6..8bfe429698 100644
--- a/openwrt/target/linux/linux-2.6/patches/generic/003-net-b44.patch
+++ b/openwrt/target/linux/linux-2.6/patches/generic/003-net-b44-2.patch
@@ -1,6 +1,6 @@
-diff -Nur linux-2.6.12.5/drivers/net/b44.c linux-2.6.12.5-b44/drivers/net/b44.c
---- linux-2.6.12.5/drivers/net/b44.c 2005-08-15 02:20:18.000000000 +0200
-+++ linux-2.6.12.5-b44/drivers/net/b44.c 2005-09-16 22:19:33.841633800 +0200
+diff -ur linux-2.6.14.3/drivers/net/b44.c linux-2.6.14.3-openwrt/drivers/net/b44.c
+--- linux-2.6.14.3/drivers/net/b44.c 2005-11-24 23:10:21.000000000 +0100
++++ linux-2.6.14.3-openwrt/drivers/net/b44.c 2005-12-08 13:24:35.000000000 +0100
@@ -1,7 +1,8 @@
-/* b44.c: Broadcom 4400 device driver.
+/* b44.c: Broadcom 4400/47xx device driver.
@@ -615,7 +615,7 @@ diff -Nur linux-2.6.12.5/drivers/net/b44.c linux-2.6.12.5-b44/drivers/net/b44.c
}
static int b44_open(struct net_device *dev)
-@@ -1416,11 +1460,11 @@
+@@ -1419,11 +1463,11 @@
int i=0;
unsigned char zero[6] = {0,0,0,0,0,0};
@@ -629,7 +629,7 @@ diff -Nur linux-2.6.12.5/drivers/net/b44.c linux-2.6.12.5-b44/drivers/net/b44.c
} else {
__b44_set_mac_addr(bp);
-@@ -1432,9 +1476,9 @@
+@@ -1435,9 +1479,9 @@
for(;i<64;i++) {
__b44_cam_write(bp, zero, i);
}
@@ -642,7 +642,7 @@ diff -Nur linux-2.6.12.5/drivers/net/b44.c linux-2.6.12.5-b44/drivers/net/b44.c
}
}
-@@ -1675,17 +1719,288 @@
+@@ -1678,17 +1722,288 @@
.set_msglevel = b44_set_msglevel,
};
@@ -935,7 +935,7 @@ diff -Nur linux-2.6.12.5/drivers/net/b44.c linux-2.6.12.5-b44/drivers/net/b44.c
}
/* Read 128-bytes of EEPROM. */
-@@ -1695,7 +2010,7 @@
+@@ -1698,7 +2013,7 @@
u16 *ptr = (u16 *) data;
for (i = 0; i < 128; i += 2)
@@ -944,7 +944,7 @@ diff -Nur linux-2.6.12.5/drivers/net/b44.c linux-2.6.12.5-b44/drivers/net/b44.c
return 0;
}
-@@ -1704,19 +2019,41 @@
+@@ -1707,19 +2022,41 @@
{
u8 eeprom[128];
int err;
@@ -998,7 +998,7 @@ diff -Nur linux-2.6.12.5/drivers/net/b44.c linux-2.6.12.5-b44/drivers/net/b44.c
/* With this, plus the rx_header prepended to the data by the
* hardware, we'll land the ethernet header on a 2-byte boundary.
-@@ -1726,13 +2063,12 @@
+@@ -1729,13 +2066,12 @@
bp->imask = IMASK_DEF;
bp->core_unit = ssb_core_unit(bp);
@@ -1014,7 +1014,7 @@ diff -Nur linux-2.6.12.5/drivers/net/b44.c linux-2.6.12.5-b44/drivers/net/b44.c
}
static int __devinit b44_init_one(struct pci_dev *pdev,
-@@ -1810,7 +2146,7 @@
+@@ -1813,7 +2149,7 @@
spin_lock_init(&bp->lock);
@@ -1023,7 +1023,7 @@ diff -Nur linux-2.6.12.5/drivers/net/b44.c linux-2.6.12.5-b44/drivers/net/b44.c
if (bp->regs == 0UL) {
printk(KERN_ERR PFX "Cannot map device registers, "
"aborting.\n");
-@@ -1871,15 +2207,21 @@
+@@ -1874,15 +2210,21 @@
pci_save_state(bp->pdev);
@@ -1047,7 +1047,7 @@ diff -Nur linux-2.6.12.5/drivers/net/b44.c linux-2.6.12.5-b44/drivers/net/b44.c
err_out_free_dev:
free_netdev(dev);
-@@ -1901,7 +2243,7 @@
+@@ -1904,7 +2246,7 @@
struct b44 *bp = netdev_priv(dev);
unregister_netdev(dev);
@@ -1056,9 +1056,9 @@ diff -Nur linux-2.6.12.5/drivers/net/b44.c linux-2.6.12.5-b44/drivers/net/b44.c
free_netdev(dev);
pci_release_regions(pdev);
pci_disable_device(pdev);
-diff -Nur linux-2.6.12.5/drivers/net/b44.h linux-2.6.12.5-b44/drivers/net/b44.h
---- linux-2.6.12.5/drivers/net/b44.h 2005-08-15 02:20:18.000000000 +0200
-+++ linux-2.6.12.5-b44/drivers/net/b44.h 2005-09-16 22:18:06.217954624 +0200
+diff -ur linux-2.6.14.3/drivers/net/b44.h linux-2.6.14.3-openwrt/drivers/net/b44.h
+--- linux-2.6.14.3/drivers/net/b44.h 2005-11-24 23:10:21.000000000 +0100
++++ linux-2.6.14.3-openwrt/drivers/net/b44.h 2005-12-08 13:24:35.000000000 +0100
@@ -292,6 +292,9 @@
#define SSB_PCI_MASK1 0xfc000000
#define SSB_PCI_MASK2 0xc0000000
diff --git a/openwrt/target/linux/linux-2.6/patches/generic/100-netfilter_layer7.patch b/openwrt/target/linux/linux-2.6/patches/generic/100-netfilter_layer7.patch
index 80a7b90b85..0dd2ccf7cc 100644
--- a/openwrt/target/linux/linux-2.6/patches/generic/100-netfilter_layer7.patch
+++ b/openwrt/target/linux/linux-2.6/patches/generic/100-netfilter_layer7.patch
@@ -1,6 +1,6 @@
---- linux-2.6.11.3-stock/include/linux/netfilter_ipv4/ip_conntrack.h 2005-03-13 00:44:41.000000000 -0600
-+++ linux-2.6.11.3-layer7/include/linux/netfilter_ipv4/ip_conntrack.h 2005-03-13 20:30:01.000000000 -0600
-@@ -177,6 +177,15 @@ struct ip_conntrack
+--- linux-2.6.14/include/linux/netfilter_ipv4/ip_conntrack.h 2005-10-27 19:02:08.000000000 -0500
++++ linux-2.6.14-layer7/include/linux/netfilter_ipv4/ip_conntrack.h 2005-11-12 17:31:34.000000000 -0600
+@@ -253,6 +253,15 @@ struct ip_conntrack
/* Traversed often, so hopefully in different cacheline to top */
/* These are my tuples; original and reply */
struct ip_conntrack_tuple_hash tuplehash[IP_CT_DIR_MAX];
@@ -16,8 +16,8 @@
};
struct ip_conntrack_expect
---- linux-2.6.11.3-stock/include/linux/netfilter_ipv4/ipt_layer7.h 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.6.11.3-layer7/include/linux/netfilter_ipv4/ipt_layer7.h 2005-03-13 20:30:01.000000000 -0600
+--- linux-2.6.14/include/linux/netfilter_ipv4/ipt_layer7.h 1969-12-31 18:00:00.000000000 -0600
++++ linux-2.6.14-layer7/include/linux/netfilter_ipv4/ipt_layer7.h 2005-11-12 17:31:34.000000000 -0600
@@ -0,0 +1,26 @@
+/*
+ By Matthew Strait <quadong@users.sf.net>, Dec 2003.
@@ -45,9 +45,9 @@
+};
+
+#endif /* _IPT_LAYER7_H */
---- linux-2.6.11.3-stock/net/ipv4/netfilter/Kconfig 2005-03-13 00:44:38.000000000 -0600
-+++ linux-2.6.11.3-layer7/net/ipv4/netfilter/Kconfig 2005-03-13 20:30:01.000000000 -0600
-@@ -146,6 +146,33 @@ config IP_NF_MATCH_MAC
+--- linux-2.6.14/net/ipv4/netfilter/Kconfig 2005-10-27 19:02:08.000000000 -0500
++++ linux-2.6.14-layer7/net/ipv4/netfilter/Kconfig 2005-11-12 17:31:34.000000000 -0600
+@@ -205,6 +205,24 @@ config IP_NF_MATCH_MAC
To compile it as a module, choose M here. If unsure, say N.
@@ -69,34 +69,25 @@
+ help
+ Say Y to get lots of debugging output.
+
-+config IP_NF_MATCH_LAYER7_MAXDATALEN
-+ int "Buffer size for application layer data" if IP_NF_MATCH_LAYER7
-+ range 256 65536
-+ default 2048
-+ help
-+ Size of the buffer that the application layer data is stored in.
-+ Unless you know what you're doing, leave it at the default of 2kB.
-+
-+
config IP_NF_MATCH_PKTTYPE
tristate "Packet type match support"
depends on IP_NF_IPTABLES
---- linux-2.6.11.3-stock/net/ipv4/netfilter/Makefile 2005-03-13 00:44:14.000000000 -0600
-+++ linux-2.6.11.3-layer7/net/ipv4/netfilter/Makefile 2005-03-13 20:30:01.000000000 -0600
-@@ -60,6 +60,8 @@ obj-$(CONFIG_IP_NF_MATCH_ADDRTYPE) += ip
- obj-$(CONFIG_IP_NF_MATCH_PHYSDEV) += ipt_physdev.o
+--- linux-2.6.14/net/ipv4/netfilter/Makefile 2005-10-27 19:02:08.000000000 -0500
++++ linux-2.6.14-layer7/net/ipv4/netfilter/Makefile 2005-11-12 17:31:34.000000000 -0600
+@@ -74,6 +74,8 @@ obj-$(CONFIG_IP_NF_MATCH_PHYSDEV) += ipt
obj-$(CONFIG_IP_NF_MATCH_COMMENT) += ipt_comment.o
+ obj-$(CONFIG_IP_NF_MATCH_STRING) += ipt_string.o
+obj-$(CONFIG_IP_NF_MATCH_LAYER7) += ipt_layer7.o
+
# targets
obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o
obj-$(CONFIG_IP_NF_TARGET_TOS) += ipt_TOS.o
---- linux-2.6.11.3-stock/net/ipv4/netfilter/ip_conntrack_core.c 2005-03-13 00:43:57.000000000 -0600
-+++ linux-2.6.11.3-layer7/net/ipv4/netfilter/ip_conntrack_core.c 2005-03-13 22:09:32.000000000 -0600
-@@ -247,6 +247,13 @@ destroy_conntrack(struct nf_conntrack *n
+--- linux-2.6.14/net/ipv4/netfilter/ip_conntrack_core.c 2005-10-27 19:02:08.000000000 -0500
++++ linux-2.6.14-layer7/net/ipv4/netfilter/ip_conntrack_core.c 2005-11-12 17:31:34.000000000 -0600
+@@ -335,6 +335,13 @@ destroy_conntrack(struct nf_conntrack *n
* too. */
- remove_expectations(ct);
+ ip_ct_remove_expectations(ct);
+ #if defined(CONFIG_IP_NF_MATCH_LAYER7) || defined(CONFIG_IP_NF_MATCH_LAYER7_MODULE)
+ if(ct->layer7.app_proto)
@@ -108,10 +99,10 @@
/* We overload first tuple to link into unconfirmed list. */
if (!is_confirmed(ct)) {
BUG_ON(list_empty(&ct->tuplehash[IP_CT_DIR_ORIGINAL].list));
---- linux-2.6.11.3-stock/net/ipv4/netfilter/ip_conntrack_standalone.c 2005-03-13 00:44:25.000000000 -0600
-+++ linux-2.6.11.3-layer7/net/ipv4/netfilter/ip_conntrack_standalone.c 2005-03-13 20:30:01.000000000 -0600
-@@ -152,6 +152,12 @@ static int ct_seq_real_show(const struct
- return 1;
+--- linux-2.6.14/net/ipv4/netfilter/ip_conntrack_standalone.c 2005-10-27 19:02:08.000000000 -0500
++++ linux-2.6.14-layer7/net/ipv4/netfilter/ip_conntrack_standalone.c 2005-11-12 17:31:34.000000000 -0600
+@@ -188,6 +188,12 @@ static int ct_seq_show(struct seq_file *
+ return -ENOSPC;
#endif
+#if defined(CONFIG_IP_NF_MATCH_LAYER7) || defined(CONFIG_IP_NF_MATCH_LAYER7_MODULE)
@@ -121,11 +112,11 @@
+#endif
+
if (seq_printf(s, "use=%u\n", atomic_read(&conntrack->ct_general.use)))
- return 1;
+ return -ENOSPC;
---- linux-2.6.11.3-stock/net/ipv4/netfilter/ipt_layer7.c 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.6.11.3-layer7/net/ipv4/netfilter/ipt_layer7.c 2005-03-13 20:30:01.000000000 -0600
-@@ -0,0 +1,552 @@
+--- linux-2.6.14/net/ipv4/netfilter/ipt_layer7.c 1969-12-31 18:00:00.000000000 -0600
++++ linux-2.6.14-layer7/net/ipv4/netfilter/ipt_layer7.c 2005-11-12 17:49:24.000000000 -0600
+@@ -0,0 +1,569 @@
+/*
+ Kernel module to match application layer (OSI layer 7)
+ data in connections.
@@ -151,7 +142,7 @@
+#include <linux/ctype.h>
+#include <net/ip.h>
+#include <net/tcp.h>
-+#include <linux/netfilter_ipv4/lockhelp.h>
++#include <linux/spinlock.h>
+
+#include "regexp/regexp.c"
+
@@ -161,8 +152,13 @@
+MODULE_AUTHOR("Matthew Strait <quadong@users.sf.net>, Ethan Sommer <sommere@users.sf.net>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("iptables application layer match module");
++MODULE_VERSION("2.0");
++
++static int maxdatalen = 2048; // this is the default
++module_param(maxdatalen, int, 0444);
++MODULE_PARM_DESC(maxdatalen, "maximum bytes of data looked at by l7-filter");
+
-+#if defined(CONFIG_IP_NF_MATCH_LAYER7_DEBUG)
++#ifdef CONFIG_IP_NF_MATCH_LAYER7_DEBUG
+ #define DPRINTK(format,args...) printk(format,##args)
+#else
+ #define DPRINTK(format,args...)
@@ -173,7 +169,7 @@
+
+/* Number of packets whose data we look at.
+This can be modified through /proc/net/layer7_numpackets */
-+static int num_packets = 8;
++static int num_packets = 10;
+
+static struct pattern_cache {
+ char * regex_string;
@@ -196,10 +192,10 @@
+ time. In this case, we have to protect the conntracks and the list of
+ compiled patterns.
+*/
-+DECLARE_RWLOCK(ct_lock);
-+DECLARE_LOCK(list_lock);
++DEFINE_RWLOCK(ct_lock);
++DEFINE_SPINLOCK(list_lock);
+
-+#if CONFIG_IP_NF_MATCH_LAYER7_DEBUG
++#ifdef CONFIG_IP_NF_MATCH_LAYER7_DEBUG
+/* Converts an unfriendly string into a friendly one by
+replacing unprintables with periods and all whitespace with " ". */
+static char * friendly_print(unsigned char * s)
@@ -366,7 +362,7 @@
+ struct ipt_layer7_info * info)
+{
+ /* If we're in here, throw the app data away */
-+ WRITE_LOCK(&ct_lock);
++ write_lock(&ct_lock);
+ if(master_conntrack->layer7.app_data != NULL) {
+
+ #ifdef CONFIG_IP_NF_MATCH_LAYER7_DEBUG
@@ -385,38 +381,38 @@
+ kfree(master_conntrack->layer7.app_data);
+ master_conntrack->layer7.app_data = NULL; /* don't free again */
+ }
-+ WRITE_UNLOCK(&ct_lock);
++ write_unlock(&ct_lock);
+
+ if(master_conntrack->layer7.app_proto){
+ /* Here child connections set their .app_proto (for /proc/net/ip_conntrack) */
-+ WRITE_LOCK(&ct_lock);
++ write_lock(&ct_lock);
+ if(!conntrack->layer7.app_proto) {
+ conntrack->layer7.app_proto = kmalloc(strlen(master_conntrack->layer7.app_proto)+1, GFP_ATOMIC);
+ if(!conntrack->layer7.app_proto){
+ if (net_ratelimit())
+ printk(KERN_ERR "layer7: out of memory in match_no_append, bailing.\n");
-+ WRITE_UNLOCK(&ct_lock);
++ write_unlock(&ct_lock);
+ return 1;
+ }
+ strcpy(conntrack->layer7.app_proto, master_conntrack->layer7.app_proto);
+ }
-+ WRITE_UNLOCK(&ct_lock);
++ write_unlock(&ct_lock);
+
+ return (!strcmp(master_conntrack->layer7.app_proto, info->protocol));
+ }
+ else {
+ /* If not classified, set to "unknown" to distinguish from
+ connections that are still being tested. */
-+ WRITE_LOCK(&ct_lock);
++ write_lock(&ct_lock);
+ master_conntrack->layer7.app_proto = kmalloc(strlen("unknown")+1, GFP_ATOMIC);
+ if(!master_conntrack->layer7.app_proto){
+ if (net_ratelimit())
+ printk(KERN_ERR "layer7: out of memory in match_no_append, bailing.\n");
-+ WRITE_UNLOCK(&ct_lock);
++ write_unlock(&ct_lock);
+ return 1;
+ }
+ strcpy(master_conntrack->layer7.app_proto, "unknown");
-+ WRITE_UNLOCK(&ct_lock);
++ write_unlock(&ct_lock);
+ return 0;
+ }
+}
@@ -430,7 +426,7 @@
+
+ /* Strip nulls. Make everything lower case (our regex lib doesn't
+ do case insensitivity). Add it to the end of the current data. */
-+ for(i = 0; i < CONFIG_IP_NF_MATCH_LAYER7_MAXDATALEN-oldlength-1 &&
++ for(i = 0; i < maxdatalen-oldlength-1 &&
+ i < appdatalen; i++) {
+ if(app_data[i] != '\0') {
+ master_conntrack->layer7.app_data[length+oldlength] =
@@ -463,13 +459,12 @@
+ return info->invert;
+ }
+
-+ /* Treat the parent and all its children together as one connection,
-+ except for the purpose of setting conntrack->layer7.app_proto in the
-+ actual connection. This makes /proc/net/ip_conntrack somewhat more
-+ satisfying. */
-+ if(!(conntrack = ip_conntrack_get((struct sk_buff *)skb, &ctinfo)) ||
++ /* Treat parent & all its children together as one connection, except
++ for the purpose of setting conntrack->layer7.app_proto in the actual
++ connection. This makes /proc/net/ip_conntrack more satisfying. */
++ if(!(conntrack = ip_conntrack_get((struct sk_buff *)skb, &ctinfo)) ||
+ !(master_conntrack = ip_conntrack_get((struct sk_buff *)skb, &master_ctinfo))) {
-+ DPRINTK("layer7: packet is not from a known connection, giving up.\n");
++ //DPRINTK("layer7: packet is not from a known connection, giving up.\n");
+ return info->invert;
+ }
+
@@ -505,25 +500,25 @@
+ app_data = skb->data + app_data_offset(skb);
+ appdatalen = skb->tail - app_data;
+
-+ LOCK_BH(&list_lock);
++ spin_lock_bh(&list_lock);
+ /* the return value gets checked later, when we're ready to use it */
+ comppattern = compile_and_cache(info->pattern, info->protocol);
-+ UNLOCK_BH(&list_lock);
++ spin_unlock_bh(&list_lock);
+
+ /* On the first packet of a connection, allocate space for app data */
-+ WRITE_LOCK(&ct_lock);
++ write_lock(&ct_lock);
+ if(TOTAL_PACKETS == 1 && !skb->cb[0] && !master_conntrack->layer7.app_data) {
-+ master_conntrack->layer7.app_data = kmalloc(CONFIG_IP_NF_MATCH_LAYER7_MAXDATALEN, GFP_ATOMIC);
++ master_conntrack->layer7.app_data = kmalloc(maxdatalen, GFP_ATOMIC);
+ if(!master_conntrack->layer7.app_data){
+ if (net_ratelimit())
+ printk(KERN_ERR "layer7: out of memory in match, bailing.\n");
-+ WRITE_UNLOCK(&ct_lock);
++ write_unlock(&ct_lock);
+ return info->invert;
+ }
+
+ master_conntrack->layer7.app_data[0] = '\0';
+ }
-+ WRITE_UNLOCK(&ct_lock);
++ write_unlock(&ct_lock);
+
+ /* Can be here, but unallocated, if numpackets is increased near
+ the beginning of a connection */
@@ -532,9 +527,9 @@
+
+ if(!skb->cb[0]){
+ int newbytes;
-+ WRITE_LOCK(&ct_lock);
++ write_lock(&ct_lock);
+ newbytes = add_data(master_conntrack, app_data, appdatalen);
-+ WRITE_UNLOCK(&ct_lock);
++ write_unlock(&ct_lock);
+
+ if(newbytes == 0) { /* didn't add any data */
+ skb->cb[0] = 1;
@@ -549,21 +544,21 @@
+ pattern_result = 0;
+ /* If the regexp failed to compile, don't bother running it */
+ } else if(comppattern && regexec(comppattern, master_conntrack->layer7.app_data)) {
-+ DPRINTK("layer7: regexec positive: %s!\n", info->protocol);
++ DPRINTK("layer7: matched %s\n", info->protocol);
+ pattern_result = 1;
+ } else pattern_result = 0;
+
+ if(pattern_result) {
-+ WRITE_LOCK(&ct_lock);
++ write_lock(&ct_lock);
+ master_conntrack->layer7.app_proto = kmalloc(strlen(info->protocol)+1, GFP_ATOMIC);
+ if(!master_conntrack->layer7.app_proto){
+ if (net_ratelimit())
+ printk(KERN_ERR "layer7: out of memory in match, bailing.\n");
-+ WRITE_UNLOCK(&ct_lock);
++ write_unlock(&ct_lock);
+ return (pattern_result ^ info->invert);
+ }
+ strcpy(master_conntrack->layer7.app_proto, info->protocol);
-+ WRITE_UNLOCK(&ct_lock);
++ write_unlock(&ct_lock);
+ }
+
+ /* mark the packet seen */
@@ -632,7 +627,10 @@
+ return count;
+ }
+
-+ copy_from_user(foo, buffer, count);
++ if(copy_from_user(foo, buffer, count)) {
++ return -EFAULT;
++ }
++
+
+ num_packets = my_atoi(foo);
+ kfree (foo);
@@ -667,6 +665,16 @@
+static int __init init(void)
+{
+ layer7_init_proc();
++ if(maxdatalen < 1) {
++ printk(KERN_WARNING "layer7: maxdatalen can't be < 1, using 1\n");
++ maxdatalen = 1;
++ }
++ /* This is not a hard limit. It's just here to prevent people from
++ bringing their slow machines to a grinding halt. */
++ else if(maxdatalen > 65536) {
++ printk(KERN_WARNING "layer7: maxdatalen can't be > 65536, using 65536\n");
++ maxdatalen = 65536;
++ }
+ return ipt_register_match(&layer7_match);
+}
+
@@ -678,8 +686,8 @@
+
+module_init(init);
+module_exit(fini);
---- linux-2.6.11.3-stock/net/ipv4/netfilter/regexp/regexp.c 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.6.11.3-layer7/net/ipv4/netfilter/regexp/regexp.c 2005-03-13 20:30:01.000000000 -0600
+--- linux-2.6.14/net/ipv4/netfilter/regexp/regexp.c 1969-12-31 18:00:00.000000000 -0600
++++ linux-2.6.14-layer7/net/ipv4/netfilter/regexp/regexp.c 2005-11-12 17:31:34.000000000 -0600
@@ -0,0 +1,1195 @@
+/*
+ * regcomp and regexec -- regsub and regerror are elsewhere
@@ -1876,8 +1884,8 @@
+#endif
+
+
---- linux-2.6.11.3-stock/net/ipv4/netfilter/regexp/regexp.h 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.6.11.3-layer7/net/ipv4/netfilter/regexp/regexp.h 2005-03-13 20:30:01.000000000 -0600
+--- linux-2.6.14/net/ipv4/netfilter/regexp/regexp.h 1969-12-31 18:00:00.000000000 -0600
++++ linux-2.6.14-layer7/net/ipv4/netfilter/regexp/regexp.h 2005-11-12 17:31:34.000000000 -0600
@@ -0,0 +1,41 @@
+/*
+ * Definitions etc. for regexp(3) routines.
@@ -1920,16 +1928,16 @@
+void regerror(char *s);
+
+#endif
---- linux-2.6.11.3-stock/net/ipv4/netfilter/regexp/regmagic.h 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.6.11.3-layer7/net/ipv4/netfilter/regexp/regmagic.h 2005-03-13 20:30:01.000000000 -0600
+--- linux-2.6.14/net/ipv4/netfilter/regexp/regmagic.h 1969-12-31 18:00:00.000000000 -0600
++++ linux-2.6.14-layer7/net/ipv4/netfilter/regexp/regmagic.h 2005-11-12 17:31:34.000000000 -0600
@@ -0,0 +1,5 @@
+/*
+ * The first byte of the regexp internal "program" is actually this magic
+ * number; the start node begins in the second byte.
+ */
+#define MAGIC 0234
---- linux-2.6.11.3-stock/net/ipv4/netfilter/regexp/regsub.c 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.6.11.3-layer7/net/ipv4/netfilter/regexp/regsub.c 2005-03-13 20:30:01.000000000 -0600
+--- linux-2.6.14/net/ipv4/netfilter/regexp/regsub.c 1969-12-31 18:00:00.000000000 -0600
++++ linux-2.6.14-layer7/net/ipv4/netfilter/regexp/regsub.c 2005-11-12 17:31:34.000000000 -0600
@@ -0,0 +1,95 @@
+/*
+ * regsub
diff --git a/openwrt/target/linux/linux-2.6/patches/generic/101-mppe-mppc-1.3.patch b/openwrt/target/linux/linux-2.6/patches/generic/101-mppe-mppc-1.3.patch
deleted file mode 100644
index aa430252c7..0000000000
--- a/openwrt/target/linux/linux-2.6/patches/generic/101-mppe-mppc-1.3.patch
+++ /dev/null
@@ -1,1559 +0,0 @@
-diff -ruN linux-2.6.12.orig/drivers/net/Kconfig linux-2.6.12/drivers/net/Kconfig
---- linux-2.6.12.orig/drivers/net/Kconfig 2005-06-28 19:57:16.000000000 +0200
-+++ linux-2.6.12/drivers/net/Kconfig 2005-06-28 20:07:01.000000000 +0200
-@@ -2417,6 +2417,32 @@
- module; it is called bsd_comp and will show up in the directory
- modules once you have said "make modules". If unsure, say N.
-
-+config PPP_MPPE_MPPC
-+ tristate "Microsoft PPP compression/encryption (MPPC/MPPE)"
-+ depends on PPP
-+ select CRYPTO_SHA1
-+ select CRYPTO_ARC4
-+ ---help---
-+ Support for the Microsoft Point-To-Point Compression (RFC2118) and
-+ Microsoft Point-To-Point Encryption (RFC3078). These protocols are
-+ supported by Microsoft Windows and wide range of "hardware" access
-+ servers. MPPE is common protocol in Virtual Private Networks. According
-+ to RFC3078, MPPE supports 40, 56 and 128-bit key lengths. Depending on
-+ PPP daemon configuration on both ends of the link, following scenarios
-+ are possible:
-+ - only compression (MPPC) is used,
-+ - only encryption (MPPE) is used,
-+ - compression and encryption (MPPC+MPPE) are used.
-+
-+ Please note that Hi/Fn (http://www.hifn.com) holds patent on MPPC so
-+ you should check if this patent is valid in your country in order to
-+ avoid legal problems.
-+
-+ For more information please visit http://free.polbox.pl/h/hs001
-+
-+ To compile this driver as a module, choose M here. The module will
-+ be called ppp_mppe_mppc.ko.
-+
- config PPPOE
- tristate "PPP over Ethernet (EXPERIMENTAL)"
- depends on EXPERIMENTAL && PPP
-diff -ruN linux-2.6.12.orig/drivers/net/Makefile linux-2.6.12/drivers/net/Makefile
---- linux-2.6.12.orig/drivers/net/Makefile 2005-06-28 19:57:16.000000000 +0200
-+++ linux-2.6.12/drivers/net/Makefile 2005-06-28 20:07:01.000000000 +0200
-@@ -105,6 +105,7 @@
- obj-$(CONFIG_PPP_SYNC_TTY) += ppp_synctty.o
- obj-$(CONFIG_PPP_DEFLATE) += ppp_deflate.o
- obj-$(CONFIG_PPP_BSDCOMP) += bsd_comp.o
-+obj-$(CONFIG_PPP_MPPE_MPPC) += ppp_mppe_mppc.o
- obj-$(CONFIG_PPPOE) += pppox.o pppoe.o
-
- obj-$(CONFIG_SLIP) += slip.o
-diff -ruN linux-2.6.12.orig/drivers/net/ppp_generic.c linux-2.6.12/drivers/net/ppp_generic.c
---- linux-2.6.12.orig/drivers/net/ppp_generic.c 2005-06-28 19:57:20.000000000 +0200
-+++ linux-2.6.12/drivers/net/ppp_generic.c 2005-06-28 20:07:01.000000000 +0200
-@@ -19,7 +19,7 @@
- * PPP driver, written by Michael Callahan and Al Longyear, and
- * subsequently hacked by Paul Mackerras.
- *
-- * ==FILEVERSION 20041108==
-+ * ==FILEVERSION 20050110==
- */
-
- #include <linux/config.h>
-@@ -105,6 +105,7 @@
- spinlock_t rlock; /* lock for receive side 58 */
- spinlock_t wlock; /* lock for transmit side 5c */
- int mru; /* max receive unit 60 */
-+ int mru_alloc; /* MAX(1500,MRU) for dev_alloc_skb() */
- unsigned int flags; /* control bits 64 */
- unsigned int xstate; /* transmit state bits 68 */
- unsigned int rstate; /* receive state bits 6c */
-@@ -632,7 +633,9 @@
- case PPPIOCSMRU:
- if (get_user(val, p))
- break;
-- ppp->mru = val;
-+ ppp->mru_alloc = ppp->mru = val;
-+ if (ppp->mru_alloc < PPP_MRU)
-+ ppp->mru_alloc = PPP_MRU; /* increase for broken peers */
- err = 0;
- break;
-
-@@ -1107,14 +1110,37 @@
- case PPP_CCP:
- /* peek at outbound CCP frames */
- ppp_ccp_peek(ppp, skb, 0);
-+ /*
-+ * When LZS or MPPE/MPPC has been negotiated we don't send
-+ * CCP_RESETACK after receiving CCP_RESETREQ; in fact pppd
-+ * sends such a packet but we silently discard it here
-+ */
-+ if (CCP_CODE(skb->data+2) == CCP_RESETACK
-+ && (ppp->xcomp->compress_proto == CI_MPPE
-+ || ppp->xcomp->compress_proto == CI_LZS)) {
-+ --ppp->stats.tx_packets;
-+ ppp->stats.tx_bytes -= skb->len - 2;
-+ kfree_skb(skb);
-+ return;
-+ }
- break;
- }
-
- /* try to do packet compression */
- if ((ppp->xstate & SC_COMP_RUN) && ppp->xc_state != 0
- && proto != PPP_LCP && proto != PPP_CCP) {
-- new_skb = alloc_skb(ppp->dev->mtu + ppp->dev->hard_header_len,
-- GFP_ATOMIC);
-+ int comp_ovhd = 0;
-+ /*
-+ * because of possible data expansion when MPPC or LZS
-+ * is used, allocate compressor's buffer 12.5% bigger
-+ * than MTU
-+ */
-+ if (ppp->xcomp->compress_proto == CI_MPPE)
-+ comp_ovhd = ((ppp->dev->mtu * 9) / 8) + 1 + MPPE_OVHD;
-+ else if (ppp->xcomp->compress_proto == CI_LZS)
-+ comp_ovhd = ((ppp->dev->mtu * 9) / 8) + 1 + LZS_OVHD;
-+ new_skb = alloc_skb(ppp->dev->mtu + ppp->dev->hard_header_len
-+ + comp_ovhd, GFP_ATOMIC);
- if (new_skb == 0) {
- printk(KERN_ERR "PPP: no memory (comp pkt)\n");
- goto drop;
-@@ -1132,9 +1158,21 @@
- skb = new_skb;
- skb_put(skb, len);
- skb_pull(skb, 2); /* pull off A/C bytes */
-- } else {
-+ } else if (len == 0) {
- /* didn't compress, or CCP not up yet */
- kfree_skb(new_skb);
-+ } else {
-+ /*
-+ * (len < 0)
-+ * MPPE requires that we do not send unencrypted
-+ * frames. The compressor will return -1 if we
-+ * should drop the frame. We cannot simply test
-+ * the compress_proto because MPPE and MPPC share
-+ * the same number.
-+ */
-+ printk(KERN_ERR "ppp: compressor dropped pkt\n");
-+ kfree_skb(new_skb);
-+ goto drop;
- }
- }
-
-@@ -1640,14 +1678,15 @@
- goto err;
-
- if (proto == PPP_COMP) {
-- ns = dev_alloc_skb(ppp->mru + PPP_HDRLEN);
-+ ns = dev_alloc_skb(ppp->mru_alloc + PPP_HDRLEN);
- if (ns == 0) {
- printk(KERN_ERR "ppp_decompress_frame: no memory\n");
- goto err;
- }
- /* the decompressor still expects the A/C bytes in the hdr */
- len = ppp->rcomp->decompress(ppp->rc_state, skb->data - 2,
-- skb->len + 2, ns->data, ppp->mru + PPP_HDRLEN);
-+ skb->len + 2, ns->data,
-+ ppp->mru_alloc + PPP_HDRLEN);
- if (len < 0) {
- /* Pass the compressed frame to pppd as an
- error indication. */
-@@ -1673,7 +1712,14 @@
- return skb;
-
- err:
-- ppp->rstate |= SC_DC_ERROR;
-+ if (ppp->rcomp->compress_proto != CI_MPPE
-+ && ppp->rcomp->compress_proto != CI_LZS) {
-+ /*
-+ * If decompression protocol isn't MPPE/MPPC or LZS, we set
-+ * SC_DC_ERROR flag and wait for CCP_RESETACK
-+ */
-+ ppp->rstate |= SC_DC_ERROR;
-+ }
- ppp_receive_error(ppp);
- return skb;
- }
-@@ -2349,6 +2395,7 @@
- memset(ppp, 0, sizeof(struct ppp));
-
- ppp->mru = PPP_MRU;
-+ ppp->mru_alloc = PPP_MRU;
- init_ppp_file(&ppp->file, INTERFACE);
- ppp->file.hdrlen = PPP_HDRLEN - 2; /* don't count proto bytes */
- for (i = 0; i < NUM_NP; ++i)
-diff -ruN linux-2.6.12.orig/drivers/net/ppp_mppe_mppc.c linux-2.6.12/drivers/net/ppp_mppe_mppc.c
---- linux-2.6.12.orig/drivers/net/ppp_mppe_mppc.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.12/drivers/net/ppp_mppe_mppc.c 2005-06-28 20:07:01.000000000 +0200
-@@ -0,0 +1,1299 @@
-+/*
-+ * ppp_mppe_mppc.c - MPPC/MPPE "compressor/decompressor" module.
-+ *
-+ * Copyright (c) 1994 Árpád Magosányi <mag@bunuel.tii.matav.hu>
-+ * Copyright (c) 1999 Tim Hockin, Cobalt Networks Inc. <thockin@cobaltnet.com>
-+ * Copyright (c) 2002-2004 Jan Dubiec <jdx@slackware.pl>
-+ *
-+ * Permission to use, copy, modify, and distribute this software and its
-+ * documentation is hereby granted, provided that the above copyright
-+ * notice appears in all copies. This software is provided without any
-+ * warranty, express or implied.
-+ *
-+ * The code is based on MPPE kernel module written by Árpád Magosányi and
-+ * Tim Hockin which can be found on http://planetmirror.com/pub/mppe/.
-+ * I have added MPPC and 56 bit session keys support in MPPE.
-+ *
-+ * WARNING! Although this is open source code, its usage in some countries
-+ * (in particular in the USA) may violate Stac Inc. patent for MPPC.
-+ *
-+ * ==FILEVERSION 20041123==
-+ *
-+ */
-+
-+#include <linux/init.h>
-+#include <linux/module.h>
-+#include <linux/mm.h>
-+#include <linux/slab.h>
-+#include <asm/scatterlist.h>
-+#include <linux/vmalloc.h>
-+#include <linux/crypto.h>
-+
-+#include <linux/ppp_defs.h>
-+#include <linux/ppp-comp.h>
-+
-+/*
-+ * State for a mppc/mppe "(de)compressor".
-+ */
-+struct ppp_mppe_state {
-+ struct crypto_tfm *arc4_tfm;
-+ struct crypto_tfm *sha1_tfm;
-+ u8 *sha1_digest;
-+ u8 master_key[MPPE_MAX_KEY_LEN];
-+ u8 session_key[MPPE_MAX_KEY_LEN];
-+ u8 mppc; /* do we use compression (MPPC)? */
-+ u8 mppe; /* do we use encryption (MPPE)? */
-+ u8 keylen; /* key length in bytes */
-+ u8 bitkeylen; /* key length in bits */
-+ u16 ccount; /* coherency counter */
-+ u16 bits; /* MPPC/MPPE control bits */
-+ u8 stateless; /* do we use stateless mode? */
-+ u8 nextflushed; /* set A bit in the next outgoing packet;
-+ used only by compressor*/
-+ u8 flushexpected; /* drop packets until A bit is received;
-+ used only by decompressor*/
-+ u8 *hist; /* MPPC history */
-+ u16 *hash; /* Hash table; used only by compressor */
-+ u16 histptr; /* history "cursor" */
-+ int unit;
-+ int debug;
-+ int mru;
-+ struct compstat stats;
-+};
-+
-+#define MPPE_HIST_LEN 8192 /* MPPC history size */
-+#define MPPE_MAX_CCOUNT 0x0FFF /* max. coherency counter value */
-+
-+#define MPPE_BIT_FLUSHED 0x80 /* bit A */
-+#define MPPE_BIT_RESET 0x40 /* bit B */
-+#define MPPE_BIT_COMP 0x20 /* bit C */
-+#define MPPE_BIT_ENCRYPTED 0x10 /* bit D */
-+
-+#define MPPE_SALT0 0xD1 /* values used in MPPE key derivation */
-+#define MPPE_SALT1 0x26 /* according to RFC3079 */
-+#define MPPE_SALT2 0x9E
-+
-+#define MPPE_CCOUNT(x) ((((x)[4] & 0x0f) << 8) + (x)[5])
-+#define MPPE_BITS(x) ((x)[4] & 0xf0)
-+#define MPPE_CTRLHI(x) ((((x)->ccount & 0xf00)>>8)|((x)->bits))
-+#define MPPE_CTRLLO(x) ((x)->ccount & 0xff)
-+
-+/*
-+ * Kernel Crypto API needs its arguments to be in kmalloc'd memory, not in the
-+ * module static data area. That means sha_pad needs to be kmalloc'd. It is done
-+ * in mppe_module_init(). This has been pointed out on 30th July 2004 by Oleg
-+ * Makarenko on pptpclient-devel mailing list.
-+ */
-+#define SHA1_PAD_SIZE 40
-+struct sha_pad {
-+ unsigned char sha_pad1[SHA1_PAD_SIZE];
-+ unsigned char sha_pad2[SHA1_PAD_SIZE];
-+};
-+static struct sha_pad *sha_pad;
-+
-+static inline void
-+setup_sg(struct scatterlist *sg, const void *address, unsigned int length)
-+{
-+ sg[0].page = virt_to_page(address);
-+ sg[0].offset = offset_in_page(address);
-+ sg[0].length = length;
-+}
-+
-+static inline void
-+arc4_setkey(struct ppp_mppe_state *state, const unsigned char *key,
-+ const unsigned int keylen)
-+{
-+ crypto_cipher_setkey(state->arc4_tfm, key, keylen);
-+}
-+
-+static inline void
-+arc4_encrypt(struct ppp_mppe_state *state, const unsigned char *in,
-+ const unsigned int len, unsigned char *out)
-+{
-+ struct scatterlist sgin[4], sgout[4];
-+
-+ setup_sg(sgin, in, len);
-+ setup_sg(sgout, out, len);
-+ crypto_cipher_encrypt(state->arc4_tfm, sgout, sgin, len);
-+}
-+
-+#define arc4_decrypt arc4_encrypt
-+
-+/*
-+ * Key Derivation, from RFC 3078, RFC 3079.
-+ * Equivalent to Get_Key() for MS-CHAP as described in RFC 3079.
-+ */
-+static void
-+get_new_key_from_sha(struct ppp_mppe_state *state, unsigned char *interim_key)
-+{
-+ struct scatterlist sg[4];
-+
-+ setup_sg(&sg[0], state->master_key, state->keylen);
-+ setup_sg(&sg[1], sha_pad->sha_pad1, sizeof(sha_pad->sha_pad1));
-+ setup_sg(&sg[2], state->session_key, state->keylen);
-+ setup_sg(&sg[3], sha_pad->sha_pad2, sizeof(sha_pad->sha_pad2));
-+
-+ crypto_digest_digest (state->sha1_tfm, sg, 4, state->sha1_digest);
-+
-+ memcpy(interim_key, state->sha1_digest, state->keylen);
-+}
-+
-+static void
-+mppe_change_key(struct ppp_mppe_state *state, int initialize)
-+{
-+ unsigned char interim_key[MPPE_MAX_KEY_LEN];
-+
-+ get_new_key_from_sha(state, interim_key);
-+ if (initialize) {
-+ memcpy(state->session_key, interim_key, state->keylen);
-+ } else {
-+ arc4_setkey(state, interim_key, state->keylen);
-+ arc4_encrypt(state, interim_key, state->keylen, state->session_key);
-+ }
-+ if (state->keylen == 8) {
-+ if (state->bitkeylen == 40) {
-+ state->session_key[0] = MPPE_SALT0;
-+ state->session_key[1] = MPPE_SALT1;
-+ state->session_key[2] = MPPE_SALT2;
-+ } else {
-+ state->session_key[0] = MPPE_SALT0;
-+ }
-+ }
-+ arc4_setkey(state, state->session_key, state->keylen);
-+}
-+
-+/* increase 12-bit coherency counter */
-+static inline void
-+mppe_increase_ccount(struct ppp_mppe_state *state)
-+{
-+ state->ccount = (state->ccount + 1) & MPPE_MAX_CCOUNT;
-+ if (state->mppe) {
-+ if (state->stateless) {
-+ mppe_change_key(state, 0);
-+ state->nextflushed = 1;
-+ } else {
-+ if ((state->ccount & 0xff) == 0xff) {
-+ mppe_change_key(state, 0);
-+ }
-+ }
-+ }
-+}
-+
-+/* allocate space for a MPPE/MPPC (de)compressor. */
-+/* comp != 0 -> init compressor */
-+/* comp = 0 -> init decompressor */
-+static void *
-+mppe_alloc(unsigned char *options, int opt_len, int comp)
-+{
-+ struct ppp_mppe_state *state;
-+ unsigned int digestsize;
-+ u8* fname;
-+
-+ fname = comp ? "mppe_comp_alloc" : "mppe_decomp_alloc";
-+
-+ /*
-+ * Hack warning - additionally to the standard MPPC/MPPE configuration
-+ * options, pppd passes to the (de)copressor 8 or 16 byte session key.
-+ * Therefore options[1] contains MPPC/MPPE configuration option length
-+ * (CILEN_MPPE = 6), but the real options length, depending on the key
-+ * length, is 6+8 or 6+16.
-+ */
-+ if (opt_len < CILEN_MPPE) {
-+ printk(KERN_WARNING "%s: wrong options length: %u\n", fname, opt_len);
-+ return NULL;
-+ }
-+
-+ if (options[0] != CI_MPPE || options[1] != CILEN_MPPE ||
-+ (options[2] & ~MPPE_STATELESS) != 0 ||
-+ options[3] != 0 || options[4] != 0 ||
-+ (options[5] & ~(MPPE_128BIT|MPPE_56BIT|MPPE_40BIT|MPPE_MPPC)) != 0 ||
-+ (options[5] & (MPPE_128BIT|MPPE_56BIT|MPPE_40BIT|MPPE_MPPC)) == 0) {
-+ printk(KERN_WARNING "%s: options rejected: o[0]=%02x, o[1]=%02x, "
-+ "o[2]=%02x, o[3]=%02x, o[4]=%02x, o[5]=%02x\n", fname, options[0],
-+ options[1], options[2], options[3], options[4], options[5]);
-+ return NULL;
-+ }
-+
-+ state = (struct ppp_mppe_state *)kmalloc(sizeof(*state), GFP_KERNEL);
-+ if (state == NULL) {
-+ printk(KERN_ERR "%s: cannot allocate space for %scompressor\n", fname,
-+ comp ? "" : "de");
-+ return NULL;
-+ }
-+ memset(state, 0, sizeof(struct ppp_mppe_state));
-+
-+ state->mppc = options[5] & MPPE_MPPC; /* Do we use MPPC? */
-+ state->mppe = options[5] & (MPPE_128BIT | MPPE_56BIT |
-+ MPPE_40BIT); /* Do we use MPPE? */
-+
-+ if (state->mppc) {
-+ /* allocate MPPC history */
-+ state->hist = (u8*)vmalloc(2*MPPE_HIST_LEN*sizeof(u8));
-+ if (state->hist == NULL) {
-+ kfree(state);
-+ printk(KERN_ERR "%s: cannot allocate space for MPPC history\n",
-+ fname);
-+ return NULL;
-+ }
-+
-+ /* allocate hashtable for MPPC compressor */
-+ if (comp) {
-+ state->hash = (u16*)vmalloc(MPPE_HIST_LEN*sizeof(u16));
-+ if (state->hash == NULL) {
-+ vfree(state->hist);
-+ kfree(state);
-+ printk(KERN_ERR "%s: cannot allocate space for MPPC history\n",
-+ fname);
-+ return NULL;
-+ }
-+ }
-+ }
-+
-+ if (state->mppe) { /* specific for MPPE */
-+ /* Load ARC4 algorithm */
-+ state->arc4_tfm = crypto_alloc_tfm("arc4", 0);
-+ if (state->arc4_tfm == NULL) {
-+ if (state->mppc) {
-+ vfree(state->hash);
-+ if (comp)
-+ vfree(state->hist);
-+ }
-+ kfree(state);
-+ printk(KERN_ERR "%s: cannot load ARC4 module\n", fname);
-+ return NULL;
-+ }
-+
-+ /* Load SHA1 algorithm */
-+ state->sha1_tfm = crypto_alloc_tfm("sha1", 0);
-+ if (state->sha1_tfm == NULL) {
-+ crypto_free_tfm(state->arc4_tfm);
-+ if (state->mppc) {
-+ vfree(state->hash);
-+ if (comp)
-+ vfree(state->hist);
-+ }
-+ kfree(state);
-+ printk(KERN_ERR "%s: cannot load SHA1 module\n", fname);
-+ return NULL;
-+ }
-+
-+ digestsize = crypto_tfm_alg_digestsize(state->sha1_tfm);
-+ if (digestsize < MPPE_MAX_KEY_LEN) {
-+ crypto_free_tfm(state->sha1_tfm);
-+ crypto_free_tfm(state->arc4_tfm);
-+ if (state->mppc) {
-+ vfree(state->hash);
-+ if (comp)
-+ vfree(state->hist);
-+ }
-+ kfree(state);
-+ printk(KERN_ERR "%s: CryptoAPI SHA1 digest size too small\n", fname);
-+ }
-+
-+ state->sha1_digest = kmalloc(digestsize, GFP_KERNEL);
-+ if (!state->sha1_digest) {
-+ crypto_free_tfm(state->sha1_tfm);
-+ crypto_free_tfm(state->arc4_tfm);
-+ if (state->mppc) {
-+ vfree(state->hash);
-+ if (comp)
-+ vfree(state->hist);
-+ }
-+ kfree(state);
-+ printk(KERN_ERR "%s: cannot allocate space for SHA1 digest\n", fname);
-+ }
-+
-+ memcpy(state->master_key, options+CILEN_MPPE, MPPE_MAX_KEY_LEN);
-+ memcpy(state->session_key, state->master_key, MPPE_MAX_KEY_LEN);
-+ /* initial key generation is done in mppe_init() */
-+ }
-+
-+ return (void *) state;
-+}
-+
-+static void *
-+mppe_comp_alloc(unsigned char *options, int opt_len)
-+{
-+ return mppe_alloc(options, opt_len, 1);
-+}
-+
-+static void *
-+mppe_decomp_alloc(unsigned char *options, int opt_len)
-+{
-+ return mppe_alloc(options, opt_len, 0);
-+}
-+
-+/* cleanup the (de)compressor */
-+static void
-+mppe_comp_free(void *arg)
-+{
-+ struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg;
-+
-+ if (state != NULL) {
-+ if (state->mppe) {
-+ if (state->sha1_digest != NULL)
-+ kfree(state->sha1_digest);
-+ if (state->sha1_tfm != NULL)
-+ crypto_free_tfm(state->sha1_tfm);
-+ if (state->arc4_tfm != NULL)
-+ crypto_free_tfm(state->arc4_tfm);
-+ }
-+ if (state->hist != NULL)
-+ vfree(state->hist);
-+ if (state->hash != NULL)
-+ vfree(state->hash);
-+ kfree(state);
-+ }
-+}
-+
-+/* init MPPC/MPPE (de)compresor */
-+/* comp != 0 -> init compressor */
-+/* comp = 0 -> init decompressor */
-+static int
-+mppe_init(void *arg, unsigned char *options, int opt_len, int unit,
-+ int hdrlen, int mru, int debug, int comp)
-+{
-+ struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg;
-+ u8* fname;
-+
-+ fname = comp ? "mppe_comp_init" : "mppe_decomp_init";
-+
-+ if (opt_len < CILEN_MPPE) {
-+ if (debug)
-+ printk(KERN_WARNING "%s: wrong options length: %u\n",
-+ fname, opt_len);
-+ return 0;
-+ }
-+
-+ if (options[0] != CI_MPPE || options[1] != CILEN_MPPE ||
-+ (options[2] & ~MPPE_STATELESS) != 0 ||
-+ options[3] != 0 || options[4] != 0 ||
-+ (options[5] & ~(MPPE_56BIT|MPPE_128BIT|MPPE_40BIT|MPPE_MPPC)) != 0 ||
-+ (options[5] & (MPPE_56BIT|MPPE_128BIT|MPPE_40BIT|MPPE_MPPC)) == 0) {
-+ if (debug)
-+ printk(KERN_WARNING "%s: options rejected: o[0]=%02x, o[1]=%02x, "
-+ "o[2]=%02x, o[3]=%02x, o[4]=%02x, o[5]=%02x\n", fname,
-+ options[0], options[1], options[2], options[3], options[4],
-+ options[5]);
-+ return 0;
-+ }
-+
-+ if ((options[5] & ~MPPE_MPPC) != MPPE_128BIT &&
-+ (options[5] & ~MPPE_MPPC) != MPPE_56BIT &&
-+ (options[5] & ~MPPE_MPPC) != MPPE_40BIT &&
-+ (options[5] & MPPE_MPPC) != MPPE_MPPC) {
-+ if (debug)
-+ printk(KERN_WARNING "%s: don't know what to do: o[5]=%02x\n",
-+ fname, options[5]);
-+ return 0;
-+ }
-+
-+ state->mppc = options[5] & MPPE_MPPC; /* Do we use MPPC? */
-+ state->mppe = options[5] & (MPPE_128BIT | MPPE_56BIT |
-+ MPPE_40BIT); /* Do we use MPPE? */
-+ state->stateless = options[2] & MPPE_STATELESS; /* Do we use stateless mode? */
-+
-+ switch (state->mppe) {
-+ case MPPE_40BIT: /* 40 bit key */
-+ state->keylen = 8;
-+ state->bitkeylen = 40;
-+ break;
-+ case MPPE_56BIT: /* 56 bit key */
-+ state->keylen = 8;
-+ state->bitkeylen = 56;
-+ break;
-+ case MPPE_128BIT: /* 128 bit key */
-+ state->keylen = 16;
-+ state->bitkeylen = 128;
-+ break;
-+ default:
-+ state->keylen = 0;
-+ state->bitkeylen = 0;
-+ }
-+
-+ state->ccount = MPPE_MAX_CCOUNT;
-+ state->bits = 0;
-+ state->unit = unit;
-+ state->debug = debug;
-+ state->histptr = MPPE_HIST_LEN;
-+ if (state->mppc) { /* reset history if MPPC was negotiated */
-+ memset(state->hist, 0, 2*MPPE_HIST_LEN*sizeof(u8));
-+ }
-+
-+ if (state->mppe) { /* generate initial session keys */
-+ mppe_change_key(state, 1);
-+ }
-+
-+ if (comp) { /* specific for compressor */
-+ state->nextflushed = 1;
-+ } else { /* specific for decompressor */
-+ state->mru = mru;
-+ state->flushexpected = 1;
-+ }
-+
-+ return 1;
-+}
-+
-+static int
-+mppe_comp_init(void *arg, unsigned char *options, int opt_len, int unit,
-+ int hdrlen, int debug)
-+{
-+ return mppe_init(arg, options, opt_len, unit, hdrlen, 0, debug, 1);
-+}
-+
-+
-+static int
-+mppe_decomp_init(void *arg, unsigned char *options, int opt_len, int unit,
-+ int hdrlen, int mru, int debug)
-+{
-+ return mppe_init(arg, options, opt_len, unit, hdrlen, mru, debug, 0);
-+}
-+
-+static void
-+mppe_comp_reset(void *arg)
-+{
-+ struct ppp_mppe_state *state = (struct ppp_mppe_state *)arg;
-+
-+ if (state->debug)
-+ printk(KERN_DEBUG "%s%d: resetting MPPC/MPPE compressor\n",
-+ __FUNCTION__, state->unit);
-+
-+ state->nextflushed = 1;
-+ if (state->mppe)
-+ arc4_setkey(state, state->session_key, state->keylen);
-+}
-+
-+static void
-+mppe_decomp_reset(void *arg)
-+{
-+ /* When MPPC/MPPE is in use, we shouldn't receive any CCP Reset-Ack.
-+ But when we receive such a packet, we just ignore it. */
-+ return;
-+}
-+
-+static void
-+mppe_stats(void *arg, struct compstat *stats)
-+{
-+ struct ppp_mppe_state *state = (struct ppp_mppe_state *)arg;
-+
-+ *stats = state->stats;
-+}
-+
-+/***************************/
-+/**** Compression stuff ****/
-+/***************************/
-+/* inserts 1 to 8 bits into the output buffer */
-+static inline void putbits8(u8 *buf, u32 val, const u32 n, u32 *i, u32 *l)
-+{
-+ buf += *i;
-+ if (*l >= n) {
-+ *l = (*l) - n;
-+ val <<= *l;
-+ *buf = *buf | (val & 0xff);
-+ if (*l == 0) {
-+ *l = 8;
-+ (*i)++;
-+ *(++buf) = 0;
-+ }
-+ } else {
-+ (*i)++;
-+ *l = 8 - n + (*l);
-+ val <<= *l;
-+ *buf = *buf | ((val >> 8) & 0xff);
-+ *(++buf) = val & 0xff;
-+ }
-+}
-+
-+/* inserts 9 to 16 bits into the output buffer */
-+static inline void putbits16(u8 *buf, u32 val, const u32 n, u32 *i, u32 *l)
-+{
-+ buf += *i;
-+ if (*l >= n - 8) {
-+ (*i)++;
-+ *l = 8 - n + (*l);
-+ val <<= *l;
-+ *buf = *buf | ((val >> 8) & 0xff);
-+ *(++buf) = val & 0xff;
-+ if (*l == 0) {
-+ *l = 8;
-+ (*i)++;
-+ *(++buf) = 0;
-+ }
-+ } else {
-+ (*i)++; (*i)++;
-+ *l = 16 - n + (*l);
-+ val <<= *l;
-+ *buf = *buf | ((val >> 16) & 0xff);
-+ *(++buf) = (val >> 8) & 0xff;
-+ *(++buf) = val & 0xff;
-+ }
-+}
-+
-+/* inserts 17 to 24 bits into the output buffer */
-+static inline void putbits24(u8 *buf, u32 val, const u32 n, u32 *i, u32 *l)
-+{
-+ buf += *i;
-+ if (*l >= n - 16) {
-+ (*i)++; (*i)++;
-+ *l = 16 - n + (*l);
-+ val <<= *l;
-+ *buf = *buf | ((val >> 16) & 0xff);
-+ *(++buf) = (val >> 8) & 0xff;
-+ *(++buf) = val & 0xff;
-+ if (*l == 0) {
-+ *l = 8;
-+ (*i)++;
-+ *(++buf) = 0;
-+ }
-+ } else {
-+ (*i)++; (*i)++; (*i)++;
-+ *l = 24 - n + (*l);
-+ val <<= *l;
-+ *buf = *buf | ((val >> 24) & 0xff);
-+ *(++buf) = (val >> 16) & 0xff;
-+ *(++buf) = (val >> 8) & 0xff;
-+ *(++buf) = val & 0xff;
-+ }
-+}
-+
-+static int
-+mppc_compress(struct ppp_mppe_state *state, unsigned char *ibuf,
-+ unsigned char *obuf, int isize, int osize)
-+{
-+ u32 olen, off, len, idx, i, l;
-+ u8 *hist, *sbuf, *p, *q, *r, *s;
-+
-+ /*
-+ At this point, to avoid possible buffer overflow caused by packet
-+ expansion during/after compression, we should make sure that
-+ osize >= (((isize*9)/8)+1)+2, but we don't do that because in
-+ ppp_generic.c we simply allocate bigger obuf.
-+
-+ Maximum MPPC packet expansion is 12.5%. This is the worst case when
-+ all octets in the input buffer are >= 0x80 and we cannot find any
-+ repeated tokens. Additionally we have to reserve 2 bytes for MPPE/MPPC
-+ status bits and coherency counter.
-+ */
-+
-+ hist = state->hist + MPPE_HIST_LEN;
-+ /* check if there is enough room at the end of the history */
-+ if (state->histptr + isize >= 2*MPPE_HIST_LEN) {
-+ state->bits |= MPPE_BIT_RESET;
-+ state->histptr = MPPE_HIST_LEN;
-+ memcpy(state->hist, hist, MPPE_HIST_LEN);
-+ }
-+ /* add packet to the history; isize must be <= MPPE_HIST_LEN */
-+ sbuf = state->hist + state->histptr;
-+ memcpy(sbuf, ibuf, isize);
-+ state->histptr += isize;
-+
-+ /* compress data */
-+ r = sbuf + isize;
-+ *obuf = olen = i = 0;
-+ l = 8;
-+ while (i < isize - 2) {
-+ s = q = sbuf + i;
-+ idx = ((40543*((((s[0]<<4)^s[1])<<4)^s[2]))>>4) & 0x1fff;
-+ p = hist + state->hash[idx];
-+ state->hash[idx] = (u16) (s - hist);
-+ off = s - p;
-+ if (off > MPPE_HIST_LEN - 1 || off < 1 || *p++ != *s++ || *p++ != *s++ ||
-+ *p++ != *s++) {
-+ /* no match found; encode literal byte */
-+ if (ibuf[i] < 0x80) { /* literal byte < 0x80 */
-+ putbits8(obuf, (u32) ibuf[i], 8, &olen, &l);
-+ } else { /* literal byte >= 0x80 */
-+ putbits16(obuf, (u32) (0x100|(ibuf[i]&0x7f)), 9, &olen, &l);
-+ }
-+ ++i;
-+ continue;
-+ }
-+ if (r - q >= 64) {
-+ *p++ != *s++ || *p++ != *s++ || *p++ != *s++ || *p++ != *s++ ||
-+ *p++ != *s++ || *p++ != *s++ || *p++ != *s++ || *p++ != *s++ ||
-+ *p++ != *s++ || *p++ != *s++ || *p++ != *s++ || *p++ != *s++ ||
-+ *p++ != *s++ || *p++ != *s++ || *p++ != *s++ || *p++ != *s++ ||
-+ *p++ != *s++ || *p++ != *s++ || *p++ != *s++ || *p++ != *s++ ||
-+ *p++ != *s++ || *p++ != *s++ || *p++ != *s++ || *p++ != *s++ ||
-+ *p++ != *s++ || *p++ != *s++ || *p++ != *s++ || *p++ != *s++ ||
-+ *p++ != *s++ || *p++ != *s++ || *p++ != *s++ || *p++ != *s++ ||
-+ *p++ != *s++ || *p++ != *s++ || *p++ != *s++ || *p++ != *s++ ||
-+ *p++ != *s++ || *p++ != *s++ || *p++ != *s++ || *p++ != *s++ ||
-+ *p++ != *s++ || *p++ != *s++ || *p++ != *s++ || *p++ != *s++ ||
-+ *p++ != *s++ || *p++ != *s++ || *p++ != *s++ || *p++ != *s++ ||
-+ *p++ != *s++ || *p++ != *s++ || *p++ != *s++ || *p++ != *s++ ||
-+ *p++ != *s++ || *p++ != *s++ || *p++ != *s++ || *p++ != *s++ ||
-+ *p++ != *s++ || *p++ != *s++ || *p++ != *s++ || *p++ != *s++ ||
-+ *p++ != *s++;
-+ if (s - q == 64) {
-+ p--; s--;
-+ while((*p++ == *s++) && (s < r) && (p < q));
-+ }
-+ } else {
-+ while((*p++ == *s++) && (s < r) && (p < q));
-+ }
-+ len = s - q - 1;
-+ i += len;
-+
-+ /* at least 3 character match found; code data */
-+ /* encode offset */
-+ if (off < 64) { /* 10-bit offset; 0 <= offset < 64 */
-+ putbits16(obuf, 0x3c0|off, 10, &olen, &l);
-+ } else if (off < 320) { /* 12-bit offset; 64 <= offset < 320 */
-+ putbits16(obuf, 0xe00|(off-64), 12, &olen, &l);
-+ } else if (off < 8192) { /* 16-bit offset; 320 <= offset < 8192 */
-+ putbits16(obuf, 0xc000|(off-320), 16, &olen, &l);
-+ } else {
-+ /* This shouldn't happen; we return 0 what means "packet expands",
-+ and we send packet uncompressed. */
-+ if (state->debug)
-+ printk(KERN_DEBUG "%s%d: wrong offset value: %d\n",
-+ __FUNCTION__, state->unit, off);
-+ return 0;
-+ }
-+ /* encode length of match */
-+ if (len < 4) { /* length = 3 */
-+ putbits8(obuf, 0, 1, &olen, &l);
-+ } else if (len < 8) { /* 4 <= length < 8 */
-+ putbits8(obuf, 0x08|(len&0x03), 4, &olen, &l);
-+ } else if (len < 16) { /* 8 <= length < 16 */
-+ putbits8(obuf, 0x30|(len&0x07), 6, &olen, &l);
-+ } else if (len < 32) { /* 16 <= length < 32 */
-+ putbits8(obuf, 0xe0|(len&0x0f), 8, &olen, &l);
-+ } else if (len < 64) { /* 32 <= length < 64 */
-+ putbits16(obuf, 0x3c0|(len&0x1f), 10, &olen, &l);
-+ } else if (len < 128) { /* 64 <= length < 128 */
-+ putbits16(obuf, 0xf80|(len&0x3f), 12, &olen, &l);
-+ } else if (len < 256) { /* 128 <= length < 256 */
-+ putbits16(obuf, 0x3f00|(len&0x7f), 14, &olen, &l);
-+ } else if (len < 512) { /* 256 <= length < 512 */
-+ putbits16(obuf, 0xfe00|(len&0xff), 16, &olen, &l);
-+ } else if (len < 1024) { /* 512 <= length < 1024 */
-+ putbits24(obuf, 0x3fc00|(len&0x1ff), 18, &olen, &l);
-+ } else if (len < 2048) { /* 1024 <= length < 2048 */
-+ putbits24(obuf, 0xff800|(len&0x3ff), 20, &olen, &l);
-+ } else if (len < 4096) { /* 2048 <= length < 4096 */
-+ putbits24(obuf, 0x3ff000|(len&0x7ff), 22, &olen, &l);
-+ } else if (len < 8192) { /* 4096 <= length < 8192 */
-+ putbits24(obuf, 0xffe000|(len&0xfff), 24, &olen, &l);
-+ } else {
-+ /* This shouldn't happen; we return 0 what means "packet expands",
-+ and send packet uncompressed. */
-+ if (state->debug)
-+ printk(KERN_DEBUG "%s%d: wrong length of match value: %d\n",
-+ __FUNCTION__, state->unit, len);
-+ return 0;
-+ }
-+ }
-+
-+ /* Add remaining octets to the output */
-+ while(isize - i > 0) {
-+ if (ibuf[i] < 0x80) { /* literal byte < 0x80 */
-+ putbits8(obuf, (u32) ibuf[i++], 8, &olen, &l);
-+ } else { /* literal byte >= 0x80 */
-+ putbits16(obuf, (u32) (0x100|(ibuf[i++]&0x7f)), 9, &olen, &l);
-+ }
-+ }
-+ /* Reset unused bits of the last output octet */
-+ if ((l != 0) && (l != 8)) {
-+ putbits8(obuf, 0, l, &olen, &l);
-+ }
-+
-+ return (int) olen;
-+}
-+
-+int
-+mppe_compress(void *arg, unsigned char *ibuf, unsigned char *obuf,
-+ int isize, int osize)
-+{
-+ struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg;
-+ int proto, olen, complen, off;
-+ unsigned char *wptr;
-+
-+ /* Check that the protocol is in the range we handle. */
-+ proto = PPP_PROTOCOL(ibuf);
-+ if (proto < 0x0021 || proto > 0x00fa)
-+ return 0;
-+
-+ wptr = obuf;
-+ /* Copy over the PPP header */
-+ wptr[0] = PPP_ADDRESS(ibuf);
-+ wptr[1] = PPP_CONTROL(ibuf);
-+ wptr[2] = PPP_COMP >> 8;
-+ wptr[3] = PPP_COMP;
-+ wptr += PPP_HDRLEN + (MPPE_OVHD / 2); /* Leave two octets for MPPE/MPPC bits */
-+
-+ /*
-+ * In ver. 0.99 protocol field was compressed. Deflate and BSD compress
-+ * do PFC before actual compression, RCF2118 and RFC3078 are not precise
-+ * on this topic so I decided to do PFC. Unfortunately this change caused
-+ * incompatibility with older/other MPPE/MPPC modules. I have received
-+ * a lot of complaints from unexperienced users so I have decided to revert
-+ * to previous state, i.e. the protocol field is sent uncompressed now.
-+ * Although this may be changed in the future.
-+ *
-+ * Receiving side (mppe_decompress()) still accepts packets with compressed
-+ * and uncompressed protocol field so you shouldn't get "Unsupported protocol
-+ * 0x2145 received" messages anymore.
-+ */
-+ //off = (proto > 0xff) ? 2 : 3; /* PFC - skip first protocol byte if 0 */
-+ off = 2;
-+
-+ ibuf += off;
-+
-+ mppe_increase_ccount(state);
-+
-+ if (state->nextflushed) {
-+ state->bits |= MPPE_BIT_FLUSHED;
-+ state->nextflushed = 0;
-+ if (state->mppe && !state->stateless) {
-+ /*
-+ * If this is the flag packet, the key has been already changed in
-+ * mppe_increase_ccount() so we dont't do it once again.
-+ */
-+ if ((state->ccount & 0xff) != 0xff) {
-+ arc4_setkey(state, state->session_key, state->keylen);
-+ }
-+ }
-+ if (state->mppc) { /* reset history */
-+ state->bits |= MPPE_BIT_RESET;
-+ state->histptr = MPPE_HIST_LEN;
-+ memset(state->hist + MPPE_HIST_LEN, 0, MPPE_HIST_LEN*sizeof(u8));
-+ }
-+ }
-+
-+ if (state->mppc && !state->mppe) { /* Do only compression */
-+ complen = mppc_compress(state, ibuf, wptr, isize - off,
-+ osize - PPP_HDRLEN - (MPPE_OVHD / 2));
-+ /*
-+ * TODO: Implement an heuristics to handle packet expansion in a smart
-+ * way. Now, when a packet expands, we send it as uncompressed and
-+ * when next packet is sent we have to reset compressor's history.
-+ * Maybe it would be better to send such packet as compressed in order
-+ * to keep history's continuity.
-+ */
-+ if ((complen > isize) || (complen > osize - PPP_HDRLEN) ||
-+ (complen == 0)) {
-+ /* packet expands */
-+ state->nextflushed = 1;
-+ memcpy(wptr, ibuf, isize - off);
-+ olen = isize - (off - 2) + MPPE_OVHD;
-+ (state->stats).inc_bytes += olen;
-+ (state->stats).inc_packets++;
-+ } else {
-+ state->bits |= MPPE_BIT_COMP;
-+ olen = complen + PPP_HDRLEN + (MPPE_OVHD / 2);
-+ (state->stats).comp_bytes += olen;
-+ (state->stats).comp_packets++;
-+ }
-+ } else { /* Do encryption with or without compression */
-+ state->bits |= MPPE_BIT_ENCRYPTED;
-+ if (!state->mppc && state->mppe) { /* Do only encryption */
-+ /* read from ibuf, write to wptr, adjust for PPP_HDRLEN */
-+ arc4_encrypt(state, ibuf, isize - off, wptr);
-+ olen = isize - (off - 2) + MPPE_OVHD;
-+ (state->stats).inc_bytes += olen;
-+ (state->stats).inc_packets++;
-+ } else { /* Do compression and then encryption - RFC3078 */
-+ complen = mppc_compress(state, ibuf, wptr, isize - off,
-+ osize - PPP_HDRLEN - (MPPE_OVHD / 2));
-+ /*
-+ * TODO: Implement an heuristics to handle packet expansion in a smart
-+ * way. Now, when a packet expands, we send it as uncompressed and
-+ * when next packet is sent we have to reset compressor's history.
-+ * Maybe it would be good to send such packet as compressed in order
-+ * to keep history's continuity.
-+ */
-+ if ((complen > isize) || (complen > osize - PPP_HDRLEN) ||
-+ (complen == 0)) {
-+ /* packet expands */
-+ state->nextflushed = 1;
-+ arc4_encrypt(state, ibuf, isize - off, wptr);
-+ olen = isize - (off - 2) + MPPE_OVHD;
-+ (state->stats).inc_bytes += olen;
-+ (state->stats).inc_packets++;
-+ } else {
-+ state->bits |= MPPE_BIT_COMP;
-+ /* Hack warning !!! RC4 implementation which we use does
-+ encryption "in place" - it means that input and output
-+ buffers can be *the same* memory area. Therefore we don't
-+ need to use a temporary buffer. But be careful - other
-+ implementations don't have to be so nice.
-+ I used to use ibuf as temporary buffer here, but it led
-+ packet sniffers into error. Thanks to Wilfried Weissmann
-+ for pointing that. */
-+ arc4_encrypt(state, wptr, complen, wptr);
-+ olen = complen + PPP_HDRLEN + (MPPE_OVHD / 2);
-+ (state->stats).comp_bytes += olen;
-+ (state->stats).comp_packets++;
-+ }
-+ }
-+ }
-+
-+ /* write status bits and coherency counter into the output buffer */
-+ wptr = obuf + PPP_HDRLEN;
-+ wptr[0] = MPPE_CTRLHI(state);
-+ wptr[1] = MPPE_CTRLLO(state);
-+
-+ state->bits = 0;
-+
-+ (state->stats).unc_bytes += isize;
-+ (state->stats).unc_packets++;
-+
-+ return olen;
-+}
-+
-+/***************************/
-+/*** Decompression stuff ***/
-+/***************************/
-+static inline u32 getbits(const u8 *buf, const u32 n, u32 *i, u32 *l)
-+{
-+ static const u32 m[] = {0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff};
-+ u32 res, ol;
-+
-+ ol = *l;
-+ if (*l >= n) {
-+ *l = (*l) - n;
-+ res = (buf[*i] & m[ol]) >> (*l);
-+ if (*l == 0) {
-+ *l = 8;
-+ (*i)++;
-+ }
-+ } else {
-+ *l = 8 - n + (*l);
-+ res = (buf[(*i)++] & m[ol]) << 8;
-+ res = (res | buf[*i]) >> (*l);
-+ }
-+
-+ return res;
-+}
-+
-+static inline u32 getbyte(const u8 *buf, const u32 i, const u32 l)
-+{
-+ if (l == 8) {
-+ return buf[i];
-+ } else {
-+ return (((buf[i] << 8) | buf[i+1]) >> l) & 0xff;
-+ }
-+}
-+
-+static inline void lamecopy(u8 *dst, u8 *src, u32 len)
-+{
-+ while (len--)
-+ *dst++ = *src++;
-+}
-+
-+static int
-+mppc_decompress(struct ppp_mppe_state *state, unsigned char *ibuf,
-+ unsigned char *obuf, int isize, int osize)
-+{
-+ u32 olen, off, len, bits, val, sig, i, l;
-+ u8 *history, *s;
-+
-+ history = state->hist + state->histptr;
-+ olen = len = i = 0;
-+ l = 8;
-+ bits = isize * 8;
-+ while (bits >= 8) {
-+ val = getbyte(ibuf, i++, l);
-+ if (val < 0x80) { /* literal byte < 0x80 */
-+ if (state->histptr < 2*MPPE_HIST_LEN) {
-+ /* copy uncompressed byte to the history */
-+ (state->hist)[(state->histptr)++] = (u8) val;
-+ } else {
-+ /* buffer overflow; drop packet */
-+ if (state->debug)
-+ printk(KERN_ERR "%s%d: trying to write outside history "
-+ "buffer\n", __FUNCTION__, state->unit);
-+ return DECOMP_ERROR;
-+ }
-+ olen++;
-+ bits -= 8;
-+ continue;
-+ }
-+
-+ sig = val & 0xc0;
-+ if (sig == 0x80) { /* literal byte >= 0x80 */
-+ if (state->histptr < 2*MPPE_HIST_LEN) {
-+ /* copy uncompressed byte to the history */
-+ (state->hist)[(state->histptr)++] =
-+ (u8) (0x80|((val&0x3f)<<1)|getbits(ibuf, 1 , &i ,&l));
-+ } else {
-+ /* buffer overflow; drop packet */
-+ if (state->debug)
-+ printk(KERN_ERR "%s%d: trying to write outside history "
-+ "buffer\n", __FUNCTION__, state->unit);
-+ return DECOMP_ERROR;
-+ }
-+ olen++;
-+ bits -= 9;
-+ continue;
-+ }
-+
-+ /* Not a literal byte so it must be an (offset,length) pair */
-+ /* decode offset */
-+ sig = val & 0xf0;
-+ if (sig == 0xf0) { /* 10-bit offset; 0 <= offset < 64 */
-+ off = (((val&0x0f)<<2)|getbits(ibuf, 2 , &i ,&l));
-+ bits -= 10;
-+ } else {
-+ if (sig == 0xe0) { /* 12-bit offset; 64 <= offset < 320 */
-+ off = ((((val&0x0f)<<4)|getbits(ibuf, 4 , &i ,&l))+64);
-+ bits -= 12;
-+ } else {
-+ if ((sig&0xe0) == 0xc0) {/* 16-bit offset; 320 <= offset < 8192 */
-+ off = ((((val&0x1f)<<8)|getbyte(ibuf, i++, l))+320);
-+ bits -= 16;
-+ if (off > MPPE_HIST_LEN - 1) {
-+ if (state->debug)
-+ printk(KERN_DEBUG "%s%d: too big offset value: %d\n",
-+ __FUNCTION__, state->unit, off);
-+ return DECOMP_ERROR;
-+ }
-+ } else { /* this shouldn't happen */
-+ if (state->debug)
-+ printk(KERN_DEBUG "%s%d: cannot decode offset value\n",
-+ __FUNCTION__, state->unit);
-+ return DECOMP_ERROR;
-+ }
-+ }
-+ }
-+ /* decode length of match */
-+ val = getbyte(ibuf, i, l);
-+ if ((val & 0x80) == 0x00) { /* len = 3 */
-+ len = 3;
-+ bits--;
-+ getbits(ibuf, 1 , &i ,&l);
-+ } else if ((val & 0xc0) == 0x80) { /* 4 <= len < 8 */
-+ len = 0x04 | ((val>>4) & 0x03);
-+ bits -= 4;
-+ getbits(ibuf, 4 , &i ,&l);
-+ } else if ((val & 0xe0) == 0xc0) { /* 8 <= len < 16 */
-+ len = 0x08 | ((val>>2) & 0x07);
-+ bits -= 6;
-+ getbits(ibuf, 6 , &i ,&l);
-+ } else if ((val & 0xf0) == 0xe0) { /* 16 <= len < 32 */
-+ len = 0x10 | (val & 0x0f);
-+ bits -= 8;
-+ i++;
-+ } else {
-+ bits -= 8;
-+ val = (val << 8) | getbyte(ibuf, ++i, l);
-+ if ((val & 0xf800) == 0xf000) { /* 32 <= len < 64 */
-+ len = 0x0020 | ((val >> 6) & 0x001f);
-+ bits -= 2;
-+ getbits(ibuf, 2 , &i ,&l);
-+ } else if ((val & 0xfc00) == 0xf800) { /* 64 <= len < 128 */
-+ len = 0x0040 | ((val >> 4) & 0x003f);
-+ bits -= 4;
-+ getbits(ibuf, 4 , &i ,&l);
-+ } else if ((val & 0xfe00) == 0xfc00) { /* 128 <= len < 256 */
-+ len = 0x0080 | ((val >> 2) & 0x007f);
-+ bits -= 6;
-+ getbits(ibuf, 6 , &i ,&l);
-+ } else if ((val & 0xff00) == 0xfe00) { /* 256 <= len < 512 */
-+ len = 0x0100 | (val & 0x00ff);
-+ bits -= 8;
-+ i++;
-+ } else {
-+ bits -= 8;
-+ val = (val << 8) | getbyte(ibuf, ++i, l);
-+ if ((val & 0xff8000) == 0xff0000) { /* 512 <= len < 1024 */
-+ len = 0x000200 | ((val >> 6) & 0x0001ff);
-+ bits -= 2;
-+ getbits(ibuf, 2 , &i ,&l);
-+ } else if ((val & 0xffc000) == 0xff8000) {/* 1024 <= len < 2048 */
-+ len = 0x000400 | ((val >> 4) & 0x0003ff);
-+ bits -= 4;
-+ getbits(ibuf, 4 , &i ,&l);
-+ } else if ((val & 0xffe000) == 0xffc000) {/* 2048 <= len < 4096 */
-+ len = 0x000800 | ((val >> 2) & 0x0007ff);
-+ bits -= 6;
-+ getbits(ibuf, 6 , &i ,&l);
-+ } else if ((val & 0xfff000) == 0xffe000) {/* 4096 <= len < 8192 */
-+ len = 0x001000 | (val & 0x000fff);
-+ bits -= 8;
-+ i++;
-+ } else { /* this shouldn't happen */
-+ if (state->debug)
-+ printk(KERN_DEBUG "%s%d: wrong length code: 0x%X\n",
-+ __FUNCTION__, state->unit, val);
-+ return DECOMP_ERROR;
-+ }
-+ }
-+ }
-+ s = state->hist + state->histptr;
-+ state->histptr += len;
-+ olen += len;
-+ if (state->histptr < 2*MPPE_HIST_LEN) {
-+ /* copy uncompressed bytes to the history */
-+
-+ /* In some cases len may be greater than off. It means that memory
-+ * areas pointed by s and s-off overlap. I had used memmove() here
-+ * because I thought that it acts as libc's version. Unfortunately,
-+ * I was wrong. :-) I got strange errors sometimes. Wilfried suggested
-+ * using of byte by byte copying here and strange errors disappeared.
-+ */
-+ lamecopy(s, s - off, len);
-+ } else {
-+ /* buffer overflow; drop packet */
-+ if (state->debug)
-+ printk(KERN_ERR "%s%d: trying to write outside history "
-+ "buffer\n", __FUNCTION__, state->unit);
-+ return DECOMP_ERROR;
-+ }
-+ }
-+
-+ /* Do PFC decompression */
-+ len = olen;
-+ if ((history[0] & 0x01) != 0) {
-+ obuf[0] = 0;
-+ obuf++;
-+ len++;
-+ }
-+
-+ if (len <= osize) {
-+ /* copy uncompressed packet to the output buffer */
-+ memcpy(obuf, history, olen);
-+ } else {
-+ /* buffer overflow; drop packet */
-+ if (state->debug)
-+ printk(KERN_ERR "%s%d: too big uncompressed packet: %d\n",
-+ __FUNCTION__, state->unit, len + (PPP_HDRLEN / 2));
-+ return DECOMP_ERROR;
-+ }
-+
-+ return (int) len;
-+}
-+
-+int
-+mppe_decompress(void *arg, unsigned char *ibuf, int isize,
-+ unsigned char *obuf, int osize)
-+{
-+ struct ppp_mppe_state *state = (struct ppp_mppe_state *)arg;
-+ int seq, bits, uncomplen;
-+
-+ if (isize <= PPP_HDRLEN + MPPE_OVHD) {
-+ if (state->debug) {
-+ printk(KERN_DEBUG "%s%d: short packet (len=%d)\n", __FUNCTION__,
-+ state->unit, isize);
-+ }
-+ return DECOMP_ERROR;
-+ }
-+
-+ /* Get coherency counter and control bits from input buffer */
-+ seq = MPPE_CCOUNT(ibuf);
-+ bits = MPPE_BITS(ibuf);
-+
-+ if (state->stateless) {
-+ /* RFC 3078, sec 8.1. */
-+ mppe_increase_ccount(state);
-+ if ((seq != state->ccount) && state->debug)
-+ printk(KERN_DEBUG "%s%d: bad sequence number: %d, expected: %d\n",
-+ __FUNCTION__, state->unit, seq, state->ccount);
-+ while (seq != state->ccount)
-+ mppe_increase_ccount(state);
-+ } else {
-+ /* RFC 3078, sec 8.2. */
-+ if (state->flushexpected) { /* discard state */
-+ if ((bits & MPPE_BIT_FLUSHED)) { /* we received expected FLUSH bit */
-+ while (seq != state->ccount)
-+ mppe_increase_ccount(state);
-+ state->flushexpected = 0;
-+ } else /* drop packet*/
-+ return DECOMP_ERROR;
-+ } else { /* normal state */
-+ mppe_increase_ccount(state);
-+ if (seq != state->ccount) {
-+ /* Packet loss detected, enter the discard state. */
-+ if (state->debug)
-+ printk(KERN_DEBUG "%s%d: bad sequence number: %d, expected: %d\n",
-+ __FUNCTION__, state->unit, seq, state->ccount);
-+ state->flushexpected = 1;
-+ return DECOMP_ERROR;
-+ }
-+ }
-+ if (state->mppe && (bits & MPPE_BIT_FLUSHED)) {
-+ arc4_setkey(state, state->session_key, state->keylen);
-+ }
-+ }
-+
-+ if (state->mppc && (bits & (MPPE_BIT_FLUSHED | MPPE_BIT_RESET))) {
-+ state->histptr = MPPE_HIST_LEN;
-+ if ((bits & MPPE_BIT_FLUSHED)) {
-+ memset(state->hist + MPPE_HIST_LEN, 0, MPPE_HIST_LEN*sizeof(u8));
-+ } else
-+ if ((bits & MPPE_BIT_RESET)) {
-+ memcpy(state->hist, state->hist + MPPE_HIST_LEN, MPPE_HIST_LEN);
-+ }
-+ }
-+
-+ /* Fill in the first part of the PPP header. The protocol field
-+ comes from the decompressed data. */
-+ obuf[0] = PPP_ADDRESS(ibuf);
-+ obuf[1] = PPP_CONTROL(ibuf);
-+ obuf += PPP_HDRLEN / 2;
-+
-+ if (state->mppe) { /* process encrypted packet */
-+ if ((bits & MPPE_BIT_ENCRYPTED)) {
-+ /* OK, packet encrypted, so decrypt it */
-+ if (state->mppc && (bits & MPPE_BIT_COMP)) {
-+ /* Hack warning !!! RC4 implementation which we use does
-+ decryption "in place" - it means that input and output
-+ buffers can be *the same* memory area. Therefore we don't
-+ need to use a temporary buffer. But be careful - other
-+ implementations don't have to be so nice. */
-+ arc4_decrypt(state, ibuf + PPP_HDRLEN + (MPPE_OVHD / 2), isize -
-+ PPP_HDRLEN - (MPPE_OVHD / 2), ibuf + PPP_HDRLEN +
-+ (MPPE_OVHD / 2));
-+ uncomplen = mppc_decompress(state, ibuf + PPP_HDRLEN +
-+ (MPPE_OVHD / 2), obuf, isize -
-+ PPP_HDRLEN - (MPPE_OVHD / 2),
-+ osize - (PPP_HDRLEN / 2));
-+ if (uncomplen == DECOMP_ERROR) {
-+ state->flushexpected = 1;
-+ return DECOMP_ERROR;
-+ }
-+ uncomplen += PPP_HDRLEN / 2;
-+ (state->stats).comp_bytes += isize;
-+ (state->stats).comp_packets++;
-+ } else {
-+ uncomplen = isize - MPPE_OVHD;
-+ /* Decrypt the first byte in order to check if it is
-+ compressed or uncompressed protocol field */
-+ arc4_decrypt(state, ibuf + PPP_HDRLEN + (MPPE_OVHD / 2), 1, obuf);
-+ /* Do PFC decompression */
-+ if ((obuf[0] & 0x01) != 0) {
-+ obuf[1] = obuf[0];
-+ obuf[0] = 0;
-+ obuf++;
-+ uncomplen++;
-+ }
-+ /* And finally, decrypt the rest of the frame. */
-+ arc4_decrypt(state, ibuf + PPP_HDRLEN + (MPPE_OVHD / 2) + 1,
-+ isize - PPP_HDRLEN - (MPPE_OVHD / 2) - 1, obuf + 1);
-+ (state->stats).inc_bytes += isize;
-+ (state->stats).inc_packets++;
-+ }
-+ } else { /* this shouldn't happen */
-+ if (state->debug)
-+ printk(KERN_ERR "%s%d: encryption negotiated but not an "
-+ "encrypted packet received\n", __FUNCTION__, state->unit);
-+ mppe_change_key(state, 0);
-+ state->flushexpected = 1;
-+ return DECOMP_ERROR;
-+ }
-+ } else {
-+ if (state->mppc) { /* no MPPE, only MPPC */
-+ if ((bits & MPPE_BIT_COMP)) {
-+ uncomplen = mppc_decompress(state, ibuf + PPP_HDRLEN +
-+ (MPPE_OVHD / 2), obuf, isize -
-+ PPP_HDRLEN - (MPPE_OVHD / 2),
-+ osize - (PPP_HDRLEN / 2));
-+ if (uncomplen == DECOMP_ERROR) {
-+ state->flushexpected = 1;
-+ return DECOMP_ERROR;
-+ }
-+ uncomplen += PPP_HDRLEN / 2;
-+ (state->stats).comp_bytes += isize;
-+ (state->stats).comp_packets++;
-+ } else {
-+ memcpy(obuf, ibuf + PPP_HDRLEN + (MPPE_OVHD / 2), isize -
-+ PPP_HDRLEN - (MPPE_OVHD / 2));
-+ uncomplen = isize - MPPE_OVHD;
-+ (state->stats).inc_bytes += isize;
-+ (state->stats).inc_packets++;
-+ }
-+ } else { /* this shouldn't happen */
-+ if (state->debug)
-+ printk(KERN_ERR "%s%d: error - not an MPPC or MPPE frame "
-+ "received\n", __FUNCTION__, state->unit);
-+ state->flushexpected = 1;
-+ return DECOMP_ERROR;
-+ }
-+ }
-+
-+ (state->stats).unc_bytes += uncomplen;
-+ (state->stats).unc_packets++;
-+
-+ return uncomplen;
-+}
-+
-+
-+/************************************************************
-+ * Module interface table
-+ ************************************************************/
-+
-+/* These are in ppp_generic.c */
-+extern int ppp_register_compressor (struct compressor *cp);
-+extern void ppp_unregister_compressor (struct compressor *cp);
-+
-+/*
-+ * Functions exported to ppp_generic.c.
-+ *
-+ * In case of MPPC/MPPE there is no need to process incompressible data
-+ * because such a data is sent in MPPC/MPPE frame. Therefore the (*incomp)
-+ * callback function isn't needed.
-+ */
-+struct compressor ppp_mppe = {
-+ .compress_proto = CI_MPPE,
-+ .comp_alloc = mppe_comp_alloc,
-+ .comp_free = mppe_comp_free,
-+ .comp_init = mppe_comp_init,
-+ .comp_reset = mppe_comp_reset,
-+ .compress = mppe_compress,
-+ .comp_stat = mppe_stats,
-+ .decomp_alloc = mppe_decomp_alloc,
-+ .decomp_free = mppe_comp_free,
-+ .decomp_init = mppe_decomp_init,
-+ .decomp_reset = mppe_decomp_reset,
-+ .decompress = mppe_decompress,
-+ .incomp = NULL,
-+ .decomp_stat = mppe_stats,
-+ .owner = THIS_MODULE
-+};
-+
-+/************************************************************
-+ * Module support routines
-+ ************************************************************/
-+
-+int __init mppe_module_init(void)
-+{
-+ int answer;
-+
-+ if (!(crypto_alg_available("arc4", 0) && crypto_alg_available("sha1", 0))) {
-+ printk(KERN_ERR "Kernel doesn't provide ARC4 and/or SHA1 algorithms "
-+ "required by MPPE/MPPC. Check CryptoAPI configuration.\n");
-+ return -ENODEV;
-+ }
-+
-+ /* Allocate space for SHAPad1, SHAPad2 and ... */
-+ sha_pad = kmalloc(sizeof(struct sha_pad), GFP_KERNEL);
-+ if (sha_pad == NULL)
-+ return -ENOMEM;
-+ /* ... initialize them */
-+ memset(sha_pad->sha_pad1, 0x00, sizeof(sha_pad->sha_pad1));
-+ memset(sha_pad->sha_pad2, 0xf2, sizeof(sha_pad->sha_pad2));
-+
-+ answer = ppp_register_compressor(&ppp_mppe);
-+ if (answer == 0) {
-+ printk(KERN_INFO "MPPE/MPPC encryption/compression module registered\n");
-+ }
-+ return answer;
-+}
-+
-+void __exit mppe_module_cleanup(void)
-+{
-+ kfree(sha_pad);
-+ ppp_unregister_compressor(&ppp_mppe);
-+ printk(KERN_INFO "MPPE/MPPC encryption/compression module unregistered\n");
-+}
-+
-+module_init(mppe_module_init);
-+module_exit(mppe_module_cleanup);
-+
-+MODULE_AUTHOR("Jan Dubiec <jdx@slackware.pl>");
-+MODULE_DESCRIPTION("MPPE/MPPC encryption/compression module for Linux");
-+MODULE_VERSION("1.2");
-+MODULE_LICENSE("Dual BSD/GPL");
-+MODULE_ALIAS("ppp-compress-" __stringify(CI_MPPE));
-diff -ruN linux-2.6.12.orig/include/linux/ppp-comp.h linux-2.6.12/include/linux/ppp-comp.h
---- linux-2.6.12.orig/include/linux/ppp-comp.h 2004-12-24 22:33:47.000000000 +0100
-+++ linux-2.6.12/include/linux/ppp-comp.h 2005-06-28 20:07:01.000000000 +0200
-@@ -28,7 +28,7 @@
- */
-
- /*
-- * ==FILEVERSION 980319==
-+ * ==FILEVERSION 20040509==
- *
- * NOTE TO MAINTAINERS:
- * If you modify this file at all, please set the above date.
-@@ -80,7 +80,7 @@
-
- /* Compress a packet */
- int (*compress) (void *state, unsigned char *rptr,
-- unsigned char *obuf, int isize, int osize);
-+ unsigned char *obuf, int isize, int osize);
-
- /* Return compression statistics */
- void (*comp_stat) (void *state, struct compstat *stats);
-@@ -101,7 +101,7 @@
-
- /* Decompress a packet. */
- int (*decompress) (void *state, unsigned char *ibuf, int isize,
-- unsigned char *obuf, int osize);
-+ unsigned char *obuf, int osize);
-
- /* Update state for an incompressible packet received */
- void (*incomp) (void *state, unsigned char *ibuf, int icnt);
-@@ -191,6 +191,42 @@
- #define DEFLATE_CHK_SEQUENCE 0
-
- /*
-+ * Definitions for MPPE/MPPC.
-+ */
-+
-+#define CI_MPPE 18 /* config option for MPPE */
-+#define CILEN_MPPE 6 /* length of config option */
-+
-+#define MPPE_OVHD 4 /* MPPE overhead */
-+#define MPPE_MAX_KEY_LEN 16 /* largest key length (128-bit) */
-+
-+#define MPPE_STATELESS 0x01 /* configuration bit H */
-+#define MPPE_40BIT 0x20 /* configuration bit L */
-+#define MPPE_56BIT 0x80 /* configuration bit M */
-+#define MPPE_128BIT 0x40 /* configuration bit S */
-+#define MPPE_MPPC 0x01 /* configuration bit C */
-+
-+/*
-+ * Definitions for Stac LZS.
-+ */
-+
-+#define CI_LZS 17 /* config option for Stac LZS */
-+#define CILEN_LZS 5 /* length of config option */
-+
-+#define LZS_OVHD 4 /* max. LZS overhead */
-+#define LZS_HIST_LEN 2048 /* LZS history size */
-+#define LZS_MAX_CCOUNT 0x0FFF /* max. coherency counter value */
-+
-+#define LZS_MODE_NONE 0
-+#define LZS_MODE_LCB 1
-+#define LZS_MODE_CRC 2
-+#define LZS_MODE_SEQ 3
-+#define LZS_MODE_EXT 4
-+
-+#define LZS_EXT_BIT_FLUSHED 0x80 /* bit A */
-+#define LZS_EXT_BIT_COMP 0x20 /* bit C */
-+
-+/*
- * Definitions for other, as yet unsupported, compression methods.
- */
-
diff --git a/openwrt/target/linux/linux-2.6/patches/generic/104-pf_ring.patch b/openwrt/target/linux/linux-2.6/patches/generic/104-pf_ring.patch
deleted file mode 100644
index 759fb2cc92..0000000000
--- a/openwrt/target/linux/linux-2.6/patches/generic/104-pf_ring.patch
+++ /dev/null
@@ -1,5299 +0,0 @@
-diff --unified --recursive --new-file linux-2.6.12.5/include/linux/ring.h linux-2.6.12.5-1-686-smp-ring3/include/linux/ring.h
---- linux-2.6.12.5/include/linux/ring.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.12.5-1-686-smp-ring3/include/linux/ring.h 2005-10-22 23:50:44.951445250 +0200
-@@ -0,0 +1,108 @@
-+/*
-+ * Definitions for packet ring
-+ *
-+ * 2004 - Luca Deri <deri@ntop.org>
-+ */
-+#ifndef __RING_H
-+#define __RING_H
-+
-+
-+#define INCLUDE_MAC_INFO
-+
-+#ifdef INCLUDE_MAC_INFO
-+#define SKB_DISPLACEMENT 14 /* Include MAC address information */
-+#else
-+#define SKB_DISPLACEMENT 0 /* Do NOT include MAC address information */
-+#endif
-+
-+#define RING_MAGIC
-+#define RING_MAGIC_VALUE 0x88
-+#define RING_FLOWSLOT_VERSION 5
-+#define RING_VERSION "3.0"
-+
-+#define SO_ADD_TO_CLUSTER 99
-+#define SO_REMOVE_FROM_CLUSTER 100
-+#define SO_SET_REFLECTOR 101
-+
-+/* *********************************** */
-+
-+#ifndef HAVE_PCAP
-+struct pcap_pkthdr {
-+ struct timeval ts; /* time stamp */
-+ u_int32_t caplen; /* length of portion present */
-+ u_int32_t len; /* length this packet (off wire) */
-+};
-+#endif
-+
-+/* *********************************** */
-+
-+enum cluster_type {
-+ cluster_per_flow = 0,
-+ cluster_round_robin
-+};
-+
-+/* *********************************** */
-+
-+#define RING_MIN_SLOT_SIZE (60+sizeof(struct pcap_pkthdr))
-+#define RING_MAX_SLOT_SIZE (1514+sizeof(struct pcap_pkthdr))
-+
-+/* *********************************** */
-+
-+typedef struct flowSlotInfo {
-+ u_int16_t version, sample_rate;
-+ u_int32_t tot_slots, slot_len, tot_mem;
-+
-+ u_int64_t tot_pkts, tot_lost;
-+ u_int64_t tot_insert, tot_read;
-+ u_int16_t insert_idx;
-+ u_int16_t remove_idx;
-+} FlowSlotInfo;
-+
-+/* *********************************** */
-+
-+typedef struct flowSlot {
-+#ifdef RING_MAGIC
-+ u_char magic; /* It must alwasy be zero */
-+#endif
-+ u_char slot_state; /* 0=empty, 1=full */
-+ u_char bucket; /* bucket[bucketLen] */
-+} FlowSlot;
-+
-+/* *********************************** */
-+
-+#ifdef __KERNEL__
-+
-+FlowSlotInfo* getRingPtr(void);
-+int allocateRing(char *deviceName, u_int numSlots,
-+ u_int bucketLen, u_int sampleRate);
-+unsigned int pollRing(struct file *fp, struct poll_table_struct * wait);
-+void deallocateRing(void);
-+
-+/* ************************* */
-+
-+typedef int (*handle_ring_skb)(struct sk_buff *skb,
-+ u_char recv_packet, u_char real_skb);
-+extern handle_ring_skb get_skb_ring_handler(void);
-+extern void set_skb_ring_handler(handle_ring_skb the_handler);
-+extern void do_skb_ring_handler(struct sk_buff *skb,
-+ u_char recv_packet, u_char real_skb);
-+
-+typedef int (*handle_ring_buffer)(struct net_device *dev,
-+ char *data, int len);
-+extern handle_ring_buffer get_buffer_ring_handler(void);
-+extern void set_buffer_ring_handler(handle_ring_buffer the_handler);
-+extern int do_buffer_ring_handler(struct net_device *dev,
-+ char *data, int len);
-+#endif /* __KERNEL__ */
-+
-+/* *********************************** */
-+
-+#define PF_RING 27 /* Packet Ring */
-+#define SOCK_RING PF_RING
-+
-+/* ioctl() */
-+#define SIORINGPOLL 0x8888
-+
-+/* *********************************** */
-+
-+#endif /* __RING_H */
-diff --unified --recursive --new-file linux-2.6.12.5/net/Kconfig linux-2.6.12.5-1-686-smp-ring3/net/Kconfig
---- linux-2.6.12.5/net/Kconfig 2005-08-15 02:20:18.000000000 +0200
-+++ linux-2.6.12.5-1-686-smp-ring3/net/Kconfig 2005-10-22 23:50:45.535481750 +0200
-@@ -72,6 +72,7 @@
-
- Say Y unless you know what you are doing.
-
-+source "net/ring/Kconfig"
- config INET
- bool "TCP/IP networking"
- ---help---
-diff --unified --recursive --new-file linux-2.6.12.5/net/Makefile linux-2.6.12.5-1-686-smp-ring3/net/Makefile
---- linux-2.6.12.5/net/Makefile 2005-08-15 02:20:18.000000000 +0200
-+++ linux-2.6.12.5-1-686-smp-ring3/net/Makefile 2005-10-22 23:50:45.491479000 +0200
-@@ -41,6 +41,7 @@
- obj-$(CONFIG_DECNET) += decnet/
- obj-$(CONFIG_ECONET) += econet/
- obj-$(CONFIG_VLAN_8021Q) += 8021q/
-+obj-$(CONFIG_RING) += ring/
- obj-$(CONFIG_IP_SCTP) += sctp/
-
- ifeq ($(CONFIG_NET),y)
-diff --unified --recursive --new-file linux-2.6.12.5/net/Makefile.ORG linux-2.6.12.5-1-686-smp-ring3/net/Makefile.ORG
---- linux-2.6.12.5/net/Makefile.ORG 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.12.5-1-686-smp-ring3/net/Makefile.ORG 2005-10-22 23:50:45.483478500 +0200
-@@ -0,0 +1,48 @@
-+#
-+# Makefile for the linux networking.
-+#
-+# 2 Sep 2000, Christoph Hellwig <hch@infradead.org>
-+# Rewritten to use lists instead of if-statements.
-+#
-+
-+obj-y := nonet.o
-+
-+obj-$(CONFIG_NET) := socket.o core/
-+
-+tmp-$(CONFIG_COMPAT) := compat.o
-+obj-$(CONFIG_NET) += $(tmp-y)
-+
-+# LLC has to be linked before the files in net/802/
-+obj-$(CONFIG_LLC) += llc/
-+obj-$(CONFIG_NET) += ethernet/ 802/ sched/ netlink/
-+obj-$(CONFIG_INET) += ipv4/
-+obj-$(CONFIG_XFRM) += xfrm/
-+obj-$(CONFIG_UNIX) += unix/
-+ifneq ($(CONFIG_IPV6),)
-+obj-y += ipv6/
-+endif
-+obj-$(CONFIG_PACKET) += packet/
-+obj-$(CONFIG_NET_KEY) += key/
-+obj-$(CONFIG_NET_SCHED) += sched/
-+obj-$(CONFIG_BRIDGE) += bridge/
-+obj-$(CONFIG_IPX) += ipx/
-+obj-$(CONFIG_ATALK) += appletalk/
-+obj-$(CONFIG_WAN_ROUTER) += wanrouter/
-+obj-$(CONFIG_X25) += x25/
-+obj-$(CONFIG_LAPB) += lapb/
-+obj-$(CONFIG_NETROM) += netrom/
-+obj-$(CONFIG_ROSE) += rose/
-+obj-$(CONFIG_AX25) += ax25/
-+obj-$(CONFIG_IRDA) += irda/
-+obj-$(CONFIG_BT) += bluetooth/
-+obj-$(CONFIG_SUNRPC) += sunrpc/
-+obj-$(CONFIG_RXRPC) += rxrpc/
-+obj-$(CONFIG_ATM) += atm/
-+obj-$(CONFIG_DECNET) += decnet/
-+obj-$(CONFIG_ECONET) += econet/
-+obj-$(CONFIG_VLAN_8021Q) += 8021q/
-+obj-$(CONFIG_IP_SCTP) += sctp/
-+
-+ifeq ($(CONFIG_NET),y)
-+obj-$(CONFIG_SYSCTL) += sysctl_net.o
-+endif
-diff --unified --recursive --new-file linux-2.6.12.5/net/core/dev.c linux-2.6.12.5-1-686-smp-ring3/net/core/dev.c
---- linux-2.6.12.5/net/core/dev.c 2005-08-15 02:20:18.000000000 +0200
-+++ linux-2.6.12.5-1-686-smp-ring3/net/core/dev.c 2005-10-22 23:50:45.479478250 +0200
-@@ -115,6 +115,56 @@
- #endif /* CONFIG_NET_RADIO */
- #include <asm/current.h>
-
-+#if defined (CONFIG_RING) || defined(CONFIG_RING_MODULE)
-+
-+/* #define RING_DEBUG */
-+
-+#include <linux/ring.h>
-+#include <linux/version.h>
-+
-+static handle_ring_skb ring_handler = NULL;
-+
-+handle_ring_skb get_skb_ring_handler() { return(ring_handler); }
-+
-+void set_skb_ring_handler(handle_ring_skb the_handler) {
-+ ring_handler = the_handler;
-+}
-+
-+void do_skb_ring_handler(struct sk_buff *skb,
-+ u_char recv_packet, u_char real_skb) {
-+ if(ring_handler)
-+ ring_handler(skb, recv_packet, real_skb);
-+}
-+
-+/* ******************* */
-+
-+static handle_ring_buffer buffer_ring_handler = NULL;
-+
-+handle_ring_buffer get_buffer_ring_handler() { return(buffer_ring_handler); }
-+
-+void set_buffer_ring_handler(handle_ring_buffer the_handler) {
-+ buffer_ring_handler = the_handler;
-+}
-+
-+int do_buffer_ring_handler(struct net_device *dev, char *data, int len) {
-+ if(buffer_ring_handler) {
-+ buffer_ring_handler(dev, data, len);
-+ return(1);
-+ } else
-+ return(0);
-+}
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+EXPORT_SYMBOL(get_skb_ring_handler);
-+EXPORT_SYMBOL(set_skb_ring_handler);
-+EXPORT_SYMBOL(do_skb_ring_handler);
-+
-+EXPORT_SYMBOL(get_buffer_ring_handler);
-+EXPORT_SYMBOL(set_buffer_ring_handler);
-+EXPORT_SYMBOL(do_buffer_ring_handler);
-+#endif
-+
-+#endif
- /* This define, if set, will randomly drop a packet when congestion
- * is more than moderate. It helps fairness in the multi-interface
- * case when one of them is a hog, but it kills performance for the
-@@ -1293,6 +1343,10 @@
- skb->tc_verd = SET_TC_AT(skb->tc_verd,AT_EGRESS);
- #endif
- if (q->enqueue) {
-+#if defined (CONFIG_RING) || defined(CONFIG_RING_MODULE)
-+ if(ring_handler) ring_handler(skb, 0, 1);
-+#endif /* CONFIG_RING */
-+
- /* Grab device queue */
- spin_lock(&dev->queue_lock);
-
-@@ -1509,6 +1563,13 @@
-
- preempt_disable();
- err = netif_rx(skb);
-+#if defined (CONFIG_RING) || defined(CONFIG_RING_MODULE)
-+ if(ring_handler && ring_handler(skb, 1, 1)) {
-+ /* The packet has been copied into a ring */
-+ return(NET_RX_SUCCESS);
-+ }
-+#endif /* CONFIG_RING */
-+
- if (local_softirq_pending())
- do_softirq();
- preempt_enable();
-@@ -1655,6 +1716,13 @@
- int ret = NET_RX_DROP;
- unsigned short type;
-
-+#if defined (CONFIG_RING) || defined(CONFIG_RING_MODULE)
-+ if(ring_handler && ring_handler(skb, 1, 1)) {
-+ /* The packet has been copied into a ring */
-+ return(NET_RX_SUCCESS);
-+ }
-+#endif /* CONFIG_RING */
-+
- /* if we've gotten here through NAPI, check netpoll */
- if (skb->dev->poll && netpoll_rx(skb))
- return NET_RX_DROP;
-diff --unified --recursive --new-file linux-2.6.12.5/net/core/dev.c.ORG linux-2.6.12.5-1-686-smp-ring3/net/core/dev.c.ORG
---- linux-2.6.12.5/net/core/dev.c.ORG 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.12.5-1-686-smp-ring3/net/core/dev.c.ORG 2005-10-22 23:50:45.203461000 +0200
-@@ -0,0 +1,3385 @@
-+/*
-+ * NET3 Protocol independent device support routines.
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * as published by the Free Software Foundation; either version
-+ * 2 of the License, or (at your option) any later version.
-+ *
-+ * Derived from the non IP parts of dev.c 1.0.19
-+ * Authors: Ross Biro
-+ * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
-+ * Mark Evans, <evansmp@uhura.aston.ac.uk>
-+ *
-+ * Additional Authors:
-+ * Florian la Roche <rzsfl@rz.uni-sb.de>
-+ * Alan Cox <gw4pts@gw4pts.ampr.org>
-+ * David Hinds <dahinds@users.sourceforge.net>
-+ * Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
-+ * Adam Sulmicki <adam@cfar.umd.edu>
-+ * Pekka Riikonen <priikone@poesidon.pspt.fi>
-+ *
-+ * Changes:
-+ * D.J. Barrow : Fixed bug where dev->refcnt gets set
-+ * to 2 if register_netdev gets called
-+ * before net_dev_init & also removed a
-+ * few lines of code in the process.
-+ * Alan Cox : device private ioctl copies fields back.
-+ * Alan Cox : Transmit queue code does relevant
-+ * stunts to keep the queue safe.
-+ * Alan Cox : Fixed double lock.
-+ * Alan Cox : Fixed promisc NULL pointer trap
-+ * ???????? : Support the full private ioctl range
-+ * Alan Cox : Moved ioctl permission check into
-+ * drivers
-+ * Tim Kordas : SIOCADDMULTI/SIOCDELMULTI
-+ * Alan Cox : 100 backlog just doesn't cut it when
-+ * you start doing multicast video 8)
-+ * Alan Cox : Rewrote net_bh and list manager.
-+ * Alan Cox : Fix ETH_P_ALL echoback lengths.
-+ * Alan Cox : Took out transmit every packet pass
-+ * Saved a few bytes in the ioctl handler
-+ * Alan Cox : Network driver sets packet type before
-+ * calling netif_rx. Saves a function
-+ * call a packet.
-+ * Alan Cox : Hashed net_bh()
-+ * Richard Kooijman: Timestamp fixes.
-+ * Alan Cox : Wrong field in SIOCGIFDSTADDR
-+ * Alan Cox : Device lock protection.
-+ * Alan Cox : Fixed nasty side effect of device close
-+ * changes.
-+ * Rudi Cilibrasi : Pass the right thing to
-+ * set_mac_address()
-+ * Dave Miller : 32bit quantity for the device lock to
-+ * make it work out on a Sparc.
-+ * Bjorn Ekwall : Added KERNELD hack.
-+ * Alan Cox : Cleaned up the backlog initialise.
-+ * Craig Metz : SIOCGIFCONF fix if space for under
-+ * 1 device.
-+ * Thomas Bogendoerfer : Return ENODEV for dev_open, if there
-+ * is no device open function.
-+ * Andi Kleen : Fix error reporting for SIOCGIFCONF
-+ * Michael Chastain : Fix signed/unsigned for SIOCGIFCONF
-+ * Cyrus Durgin : Cleaned for KMOD
-+ * Adam Sulmicki : Bug Fix : Network Device Unload
-+ * A network device unload needs to purge
-+ * the backlog queue.
-+ * Paul Rusty Russell : SIOCSIFNAME
-+ * Pekka Riikonen : Netdev boot-time settings code
-+ * Andrew Morton : Make unregister_netdevice wait
-+ * indefinitely on dev->refcnt
-+ * J Hadi Salim : - Backlog queue sampling
-+ * - netif_rx() feedback
-+ */
-+
-+#include <asm/uaccess.h>
-+#include <asm/system.h>
-+#include <linux/bitops.h>
-+#include <linux/config.h>
-+#include <linux/cpu.h>
-+#include <linux/types.h>
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/string.h>
-+#include <linux/mm.h>
-+#include <linux/socket.h>
-+#include <linux/sockios.h>
-+#include <linux/errno.h>
-+#include <linux/interrupt.h>
-+#include <linux/if_ether.h>
-+#include <linux/netdevice.h>
-+#include <linux/etherdevice.h>
-+#include <linux/notifier.h>
-+#include <linux/skbuff.h>
-+#include <net/sock.h>
-+#include <linux/rtnetlink.h>
-+#include <linux/proc_fs.h>
-+#include <linux/seq_file.h>
-+#include <linux/stat.h>
-+#include <linux/if_bridge.h>
-+#include <linux/divert.h>
-+#include <net/dst.h>
-+#include <net/pkt_sched.h>
-+#include <net/checksum.h>
-+#include <linux/highmem.h>
-+#include <linux/init.h>
-+#include <linux/kmod.h>
-+#include <linux/module.h>
-+#include <linux/kallsyms.h>
-+#include <linux/netpoll.h>
-+#include <linux/rcupdate.h>
-+#include <linux/delay.h>
-+#ifdef CONFIG_NET_RADIO
-+#include <linux/wireless.h> /* Note : will define WIRELESS_EXT */
-+#include <net/iw_handler.h>
-+#endif /* CONFIG_NET_RADIO */
-+#include <asm/current.h>
-+
-+/* This define, if set, will randomly drop a packet when congestion
-+ * is more than moderate. It helps fairness in the multi-interface
-+ * case when one of them is a hog, but it kills performance for the
-+ * single interface case so it is off now by default.
-+ */
-+#undef RAND_LIE
-+
-+/* Setting this will sample the queue lengths and thus congestion
-+ * via a timer instead of as each packet is received.
-+ */
-+#undef OFFLINE_SAMPLE
-+
-+/*
-+ * The list of packet types we will receive (as opposed to discard)
-+ * and the routines to invoke.
-+ *
-+ * Why 16. Because with 16 the only overlap we get on a hash of the
-+ * low nibble of the protocol value is RARP/SNAP/X.25.
-+ *
-+ * NOTE: That is no longer true with the addition of VLAN tags. Not
-+ * sure which should go first, but I bet it won't make much
-+ * difference if we are running VLANs. The good news is that
-+ * this protocol won't be in the list unless compiled in, so
-+ * the average user (w/out VLANs) will not be adversly affected.
-+ * --BLG
-+ *
-+ * 0800 IP
-+ * 8100 802.1Q VLAN
-+ * 0001 802.3
-+ * 0002 AX.25
-+ * 0004 802.2
-+ * 8035 RARP
-+ * 0005 SNAP
-+ * 0805 X.25
-+ * 0806 ARP
-+ * 8137 IPX
-+ * 0009 Localtalk
-+ * 86DD IPv6
-+ */
-+
-+static DEFINE_SPINLOCK(ptype_lock);
-+static struct list_head ptype_base[16]; /* 16 way hashed list */
-+static struct list_head ptype_all; /* Taps */
-+
-+#ifdef OFFLINE_SAMPLE
-+static void sample_queue(unsigned long dummy);
-+static struct timer_list samp_timer = TIMER_INITIALIZER(sample_queue, 0, 0);
-+#endif
-+
-+/*
-+ * The @dev_base list is protected by @dev_base_lock and the rtln
-+ * semaphore.
-+ *
-+ * Pure readers hold dev_base_lock for reading.
-+ *
-+ * Writers must hold the rtnl semaphore while they loop through the
-+ * dev_base list, and hold dev_base_lock for writing when they do the
-+ * actual updates. This allows pure readers to access the list even
-+ * while a writer is preparing to update it.
-+ *
-+ * To put it another way, dev_base_lock is held for writing only to
-+ * protect against pure readers; the rtnl semaphore provides the
-+ * protection against other writers.
-+ *
-+ * See, for example usages, register_netdevice() and
-+ * unregister_netdevice(), which must be called with the rtnl
-+ * semaphore held.
-+ */
-+struct net_device *dev_base;
-+static struct net_device **dev_tail = &dev_base;
-+DEFINE_RWLOCK(dev_base_lock);
-+
-+EXPORT_SYMBOL(dev_base);
-+EXPORT_SYMBOL(dev_base_lock);
-+
-+#define NETDEV_HASHBITS 8
-+static struct hlist_head dev_name_head[1<<NETDEV_HASHBITS];
-+static struct hlist_head dev_index_head[1<<NETDEV_HASHBITS];
-+
-+static inline struct hlist_head *dev_name_hash(const char *name)
-+{
-+ unsigned hash = full_name_hash(name, strnlen(name, IFNAMSIZ));
-+ return &dev_name_head[hash & ((1<<NETDEV_HASHBITS)-1)];
-+}
-+
-+static inline struct hlist_head *dev_index_hash(int ifindex)
-+{
-+ return &dev_index_head[ifindex & ((1<<NETDEV_HASHBITS)-1)];
-+}
-+
-+/*
-+ * Our notifier list
-+ */
-+
-+static struct notifier_block *netdev_chain;
-+
-+/*
-+ * Device drivers call our routines to queue packets here. We empty the
-+ * queue in the local softnet handler.
-+ */
-+DEFINE_PER_CPU(struct softnet_data, softnet_data) = { 0, };
-+
-+#ifdef CONFIG_SYSFS
-+extern int netdev_sysfs_init(void);
-+extern int netdev_register_sysfs(struct net_device *);
-+extern void netdev_unregister_sysfs(struct net_device *);
-+#else
-+#define netdev_sysfs_init() (0)
-+#define netdev_register_sysfs(dev) (0)
-+#define netdev_unregister_sysfs(dev) do { } while(0)
-+#endif
-+
-+
-+/*******************************************************************************
-+
-+ Protocol management and registration routines
-+
-+*******************************************************************************/
-+
-+/*
-+ * For efficiency
-+ */
-+
-+int netdev_nit;
-+
-+/*
-+ * Add a protocol ID to the list. Now that the input handler is
-+ * smarter we can dispense with all the messy stuff that used to be
-+ * here.
-+ *
-+ * BEWARE!!! Protocol handlers, mangling input packets,
-+ * MUST BE last in hash buckets and checking protocol handlers
-+ * MUST start from promiscuous ptype_all chain in net_bh.
-+ * It is true now, do not change it.
-+ * Explanation follows: if protocol handler, mangling packet, will
-+ * be the first on list, it is not able to sense, that packet
-+ * is cloned and should be copied-on-write, so that it will
-+ * change it and subsequent readers will get broken packet.
-+ * --ANK (980803)
-+ */
-+
-+/**
-+ * dev_add_pack - add packet handler
-+ * @pt: packet type declaration
-+ *
-+ * Add a protocol handler to the networking stack. The passed &packet_type
-+ * is linked into kernel lists and may not be freed until it has been
-+ * removed from the kernel lists.
-+ *
-+ * This call does not sleep therefore it can not
-+ * guarantee all CPU's that are in middle of receiving packets
-+ * will see the new packet type (until the next received packet).
-+ */
-+
-+void dev_add_pack(struct packet_type *pt)
-+{
-+ int hash;
-+
-+ spin_lock_bh(&ptype_lock);
-+ if (pt->type == htons(ETH_P_ALL)) {
-+ netdev_nit++;
-+ list_add_rcu(&pt->list, &ptype_all);
-+ } else {
-+ hash = ntohs(pt->type) & 15;
-+ list_add_rcu(&pt->list, &ptype_base[hash]);
-+ }
-+ spin_unlock_bh(&ptype_lock);
-+}
-+
-+extern void linkwatch_run_queue(void);
-+
-+
-+
-+/**
-+ * __dev_remove_pack - remove packet handler
-+ * @pt: packet type declaration
-+ *
-+ * Remove a protocol handler that was previously added to the kernel
-+ * protocol handlers by dev_add_pack(). The passed &packet_type is removed
-+ * from the kernel lists and can be freed or reused once this function
-+ * returns.
-+ *
-+ * The packet type might still be in use by receivers
-+ * and must not be freed until after all the CPU's have gone
-+ * through a quiescent state.
-+ */
-+void __dev_remove_pack(struct packet_type *pt)
-+{
-+ struct list_head *head;
-+ struct packet_type *pt1;
-+
-+ spin_lock_bh(&ptype_lock);
-+
-+ if (pt->type == htons(ETH_P_ALL)) {
-+ netdev_nit--;
-+ head = &ptype_all;
-+ } else
-+ head = &ptype_base[ntohs(pt->type) & 15];
-+
-+ list_for_each_entry(pt1, head, list) {
-+ if (pt == pt1) {
-+ list_del_rcu(&pt->list);
-+ goto out;
-+ }
-+ }
-+
-+ printk(KERN_WARNING "dev_remove_pack: %p not found.\n", pt);
-+out:
-+ spin_unlock_bh(&ptype_lock);
-+}
-+/**
-+ * dev_remove_pack - remove packet handler
-+ * @pt: packet type declaration
-+ *
-+ * Remove a protocol handler that was previously added to the kernel
-+ * protocol handlers by dev_add_pack(). The passed &packet_type is removed
-+ * from the kernel lists and can be freed or reused once this function
-+ * returns.
-+ *
-+ * This call sleeps to guarantee that no CPU is looking at the packet
-+ * type after return.
-+ */
-+void dev_remove_pack(struct packet_type *pt)
-+{
-+ __dev_remove_pack(pt);
-+
-+ synchronize_net();
-+}
-+
-+/******************************************************************************
-+
-+ Device Boot-time Settings Routines
-+
-+*******************************************************************************/
-+
-+/* Boot time configuration table */
-+static struct netdev_boot_setup dev_boot_setup[NETDEV_BOOT_SETUP_MAX];
-+
-+/**
-+ * netdev_boot_setup_add - add new setup entry
-+ * @name: name of the device
-+ * @map: configured settings for the device
-+ *
-+ * Adds new setup entry to the dev_boot_setup list. The function
-+ * returns 0 on error and 1 on success. This is a generic routine to
-+ * all netdevices.
-+ */
-+static int netdev_boot_setup_add(char *name, struct ifmap *map)
-+{
-+ struct netdev_boot_setup *s;
-+ int i;
-+
-+ s = dev_boot_setup;
-+ for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) {
-+ if (s[i].name[0] == '\0' || s[i].name[0] == ' ') {
-+ memset(s[i].name, 0, sizeof(s[i].name));
-+ strcpy(s[i].name, name);
-+ memcpy(&s[i].map, map, sizeof(s[i].map));
-+ break;
-+ }
-+ }
-+
-+ return i >= NETDEV_BOOT_SETUP_MAX ? 0 : 1;
-+}
-+
-+/**
-+ * netdev_boot_setup_check - check boot time settings
-+ * @dev: the netdevice
-+ *
-+ * Check boot time settings for the device.
-+ * The found settings are set for the device to be used
-+ * later in the device probing.
-+ * Returns 0 if no settings found, 1 if they are.
-+ */
-+int netdev_boot_setup_check(struct net_device *dev)
-+{
-+ struct netdev_boot_setup *s = dev_boot_setup;
-+ int i;
-+
-+ for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) {
-+ if (s[i].name[0] != '\0' && s[i].name[0] != ' ' &&
-+ !strncmp(dev->name, s[i].name, strlen(s[i].name))) {
-+ dev->irq = s[i].map.irq;
-+ dev->base_addr = s[i].map.base_addr;
-+ dev->mem_start = s[i].map.mem_start;
-+ dev->mem_end = s[i].map.mem_end;
-+ return 1;
-+ }
-+ }
-+ return 0;
-+}
-+
-+
-+/**
-+ * netdev_boot_base - get address from boot time settings
-+ * @prefix: prefix for network device
-+ * @unit: id for network device
-+ *
-+ * Check boot time settings for the base address of device.
-+ * The found settings are set for the device to be used
-+ * later in the device probing.
-+ * Returns 0 if no settings found.
-+ */
-+unsigned long netdev_boot_base(const char *prefix, int unit)
-+{
-+ const struct netdev_boot_setup *s = dev_boot_setup;
-+ char name[IFNAMSIZ];
-+ int i;
-+
-+ sprintf(name, "%s%d", prefix, unit);
-+
-+ /*
-+ * If device already registered then return base of 1
-+ * to indicate not to probe for this interface
-+ */
-+ if (__dev_get_by_name(name))
-+ return 1;
-+
-+ for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++)
-+ if (!strcmp(name, s[i].name))
-+ return s[i].map.base_addr;
-+ return 0;
-+}
-+
-+/*
-+ * Saves at boot time configured settings for any netdevice.
-+ */
-+int __init netdev_boot_setup(char *str)
-+{
-+ int ints[5];
-+ struct ifmap map;
-+
-+ str = get_options(str, ARRAY_SIZE(ints), ints);
-+ if (!str || !*str)
-+ return 0;
-+
-+ /* Save settings */
-+ memset(&map, 0, sizeof(map));
-+ if (ints[0] > 0)
-+ map.irq = ints[1];
-+ if (ints[0] > 1)
-+ map.base_addr = ints[2];
-+ if (ints[0] > 2)
-+ map.mem_start = ints[3];
-+ if (ints[0] > 3)
-+ map.mem_end = ints[4];
-+
-+ /* Add new entry to the list */
-+ return netdev_boot_setup_add(str, &map);
-+}
-+
-+__setup("netdev=", netdev_boot_setup);
-+
-+/*******************************************************************************
-+
-+ Device Interface Subroutines
-+
-+*******************************************************************************/
-+
-+/**
-+ * __dev_get_by_name - find a device by its name
-+ * @name: name to find
-+ *
-+ * Find an interface by name. Must be called under RTNL semaphore
-+ * or @dev_base_lock. If the name is found a pointer to the device
-+ * is returned. If the name is not found then %NULL is returned. The
-+ * reference counters are not incremented so the caller must be
-+ * careful with locks.
-+ */
-+
-+struct net_device *__dev_get_by_name(const char *name)
-+{
-+ struct hlist_node *p;
-+
-+ hlist_for_each(p, dev_name_hash(name)) {
-+ struct net_device *dev
-+ = hlist_entry(p, struct net_device, name_hlist);
-+ if (!strncmp(dev->name, name, IFNAMSIZ))
-+ return dev;
-+ }
-+ return NULL;
-+}
-+
-+/**
-+ * dev_get_by_name - find a device by its name
-+ * @name: name to find
-+ *
-+ * Find an interface by name. This can be called from any
-+ * context and does its own locking. The returned handle has
-+ * the usage count incremented and the caller must use dev_put() to
-+ * release it when it is no longer needed. %NULL is returned if no
-+ * matching device is found.
-+ */
-+
-+struct net_device *dev_get_by_name(const char *name)
-+{
-+ struct net_device *dev;
-+
-+ read_lock(&dev_base_lock);
-+ dev = __dev_get_by_name(name);
-+ if (dev)
-+ dev_hold(dev);
-+ read_unlock(&dev_base_lock);
-+ return dev;
-+}
-+
-+/**
-+ * __dev_get_by_index - find a device by its ifindex
-+ * @ifindex: index of device
-+ *
-+ * Search for an interface by index. Returns %NULL if the device
-+ * is not found or a pointer to the device. The device has not
-+ * had its reference counter increased so the caller must be careful
-+ * about locking. The caller must hold either the RTNL semaphore
-+ * or @dev_base_lock.
-+ */
-+
-+struct net_device *__dev_get_by_index(int ifindex)
-+{
-+ struct hlist_node *p;
-+
-+ hlist_for_each(p, dev_index_hash(ifindex)) {
-+ struct net_device *dev
-+ = hlist_entry(p, struct net_device, index_hlist);
-+ if (dev->ifindex == ifindex)
-+ return dev;
-+ }
-+ return NULL;
-+}
-+
-+
-+/**
-+ * dev_get_by_index - find a device by its ifindex
-+ * @ifindex: index of device
-+ *
-+ * Search for an interface by index. Returns NULL if the device
-+ * is not found or a pointer to the device. The device returned has
-+ * had a reference added and the pointer is safe until the user calls
-+ * dev_put to indicate they have finished with it.
-+ */
-+
-+struct net_device *dev_get_by_index(int ifindex)
-+{
-+ struct net_device *dev;
-+
-+ read_lock(&dev_base_lock);
-+ dev = __dev_get_by_index(ifindex);
-+ if (dev)
-+ dev_hold(dev);
-+ read_unlock(&dev_base_lock);
-+ return dev;
-+}
-+
-+/**
-+ * dev_getbyhwaddr - find a device by its hardware address
-+ * @type: media type of device
-+ * @ha: hardware address
-+ *
-+ * Search for an interface by MAC address. Returns NULL if the device
-+ * is not found or a pointer to the device. The caller must hold the
-+ * rtnl semaphore. The returned device has not had its ref count increased
-+ * and the caller must therefore be careful about locking
-+ *
-+ * BUGS:
-+ * If the API was consistent this would be __dev_get_by_hwaddr
-+ */
-+
-+struct net_device *dev_getbyhwaddr(unsigned short type, char *ha)
-+{
-+ struct net_device *dev;
-+
-+ ASSERT_RTNL();
-+
-+ for (dev = dev_base; dev; dev = dev->next)
-+ if (dev->type == type &&
-+ !memcmp(dev->dev_addr, ha, dev->addr_len))
-+ break;
-+ return dev;
-+}
-+
-+struct net_device *dev_getfirstbyhwtype(unsigned short type)
-+{
-+ struct net_device *dev;
-+
-+ rtnl_lock();
-+ for (dev = dev_base; dev; dev = dev->next) {
-+ if (dev->type == type) {
-+ dev_hold(dev);
-+ break;
-+ }
-+ }
-+ rtnl_unlock();
-+ return dev;
-+}
-+
-+EXPORT_SYMBOL(dev_getfirstbyhwtype);
-+
-+/**
-+ * dev_get_by_flags - find any device with given flags
-+ * @if_flags: IFF_* values
-+ * @mask: bitmask of bits in if_flags to check
-+ *
-+ * Search for any interface with the given flags. Returns NULL if a device
-+ * is not found or a pointer to the device. The device returned has
-+ * had a reference added and the pointer is safe until the user calls
-+ * dev_put to indicate they have finished with it.
-+ */
-+
-+struct net_device * dev_get_by_flags(unsigned short if_flags, unsigned short mask)
-+{
-+ struct net_device *dev;
-+
-+ read_lock(&dev_base_lock);
-+ for (dev = dev_base; dev != NULL; dev = dev->next) {
-+ if (((dev->flags ^ if_flags) & mask) == 0) {
-+ dev_hold(dev);
-+ break;
-+ }
-+ }
-+ read_unlock(&dev_base_lock);
-+ return dev;
-+}
-+
-+/**
-+ * dev_valid_name - check if name is okay for network device
-+ * @name: name string
-+ *
-+ * Network device names need to be valid file names to
-+ * to allow sysfs to work
-+ */
-+static int dev_valid_name(const char *name)
-+{
-+ return !(*name == '\0'
-+ || !strcmp(name, ".")
-+ || !strcmp(name, "..")
-+ || strchr(name, '/'));
-+}
-+
-+/**
-+ * dev_alloc_name - allocate a name for a device
-+ * @dev: device
-+ * @name: name format string
-+ *
-+ * Passed a format string - eg "lt%d" it will try and find a suitable
-+ * id. Not efficient for many devices, not called a lot. The caller
-+ * must hold the dev_base or rtnl lock while allocating the name and
-+ * adding the device in order to avoid duplicates. Returns the number
-+ * of the unit assigned or a negative errno code.
-+ */
-+
-+int dev_alloc_name(struct net_device *dev, const char *name)
-+{
-+ int i = 0;
-+ char buf[IFNAMSIZ];
-+ const char *p;
-+ const int max_netdevices = 8*PAGE_SIZE;
-+ long *inuse;
-+ struct net_device *d;
-+
-+ p = strnchr(name, IFNAMSIZ-1, '%');
-+ if (p) {
-+ /*
-+ * Verify the string as this thing may have come from
-+ * the user. There must be either one "%d" and no other "%"
-+ * characters.
-+ */
-+ if (p[1] != 'd' || strchr(p + 2, '%'))
-+ return -EINVAL;
-+
-+ /* Use one page as a bit array of possible slots */
-+ inuse = (long *) get_zeroed_page(GFP_ATOMIC);
-+ if (!inuse)
-+ return -ENOMEM;
-+
-+ for (d = dev_base; d; d = d->next) {
-+ if (!sscanf(d->name, name, &i))
-+ continue;
-+ if (i < 0 || i >= max_netdevices)
-+ continue;
-+
-+ /* avoid cases where sscanf is not exact inverse of printf */
-+ snprintf(buf, sizeof(buf), name, i);
-+ if (!strncmp(buf, d->name, IFNAMSIZ))
-+ set_bit(i, inuse);
-+ }
-+
-+ i = find_first_zero_bit(inuse, max_netdevices);
-+ free_page((unsigned long) inuse);
-+ }
-+
-+ snprintf(buf, sizeof(buf), name, i);
-+ if (!__dev_get_by_name(buf)) {
-+ strlcpy(dev->name, buf, IFNAMSIZ);
-+ return i;
-+ }
-+
-+ /* It is possible to run out of possible slots
-+ * when the name is long and there isn't enough space left
-+ * for the digits, or if all bits are used.
-+ */
-+ return -ENFILE;
-+}
-+
-+
-+/**
-+ * dev_change_name - change name of a device
-+ * @dev: device
-+ * @newname: name (or format string) must be at least IFNAMSIZ
-+ *
-+ * Change name of a device, can pass format strings "eth%d".
-+ * for wildcarding.
-+ */
-+int dev_change_name(struct net_device *dev, char *newname)
-+{
-+ int err = 0;
-+
-+ ASSERT_RTNL();
-+
-+ if (dev->flags & IFF_UP)
-+ return -EBUSY;
-+
-+ if (!dev_valid_name(newname))
-+ return -EINVAL;
-+
-+ if (strchr(newname, '%')) {
-+ err = dev_alloc_name(dev, newname);
-+ if (err < 0)
-+ return err;
-+ strcpy(newname, dev->name);
-+ }
-+ else if (__dev_get_by_name(newname))
-+ return -EEXIST;
-+ else
-+ strlcpy(dev->name, newname, IFNAMSIZ);
-+
-+ err = class_device_rename(&dev->class_dev, dev->name);
-+ if (!err) {
-+ hlist_del(&dev->name_hlist);
-+ hlist_add_head(&dev->name_hlist, dev_name_hash(dev->name));
-+ notifier_call_chain(&netdev_chain, NETDEV_CHANGENAME, dev);
-+ }
-+
-+ return err;
-+}
-+
-+/**
-+ * netdev_features_change - device changes fatures
-+ * @dev: device to cause notification
-+ *
-+ * Called to indicate a device has changed features.
-+ */
-+void netdev_features_change(struct net_device *dev)
-+{
-+ notifier_call_chain(&netdev_chain, NETDEV_FEAT_CHANGE, dev);
-+}
-+EXPORT_SYMBOL(netdev_features_change);
-+
-+/**
-+ * netdev_state_change - device changes state
-+ * @dev: device to cause notification
-+ *
-+ * Called to indicate a device has changed state. This function calls
-+ * the notifier chains for netdev_chain and sends a NEWLINK message
-+ * to the routing socket.
-+ */
-+void netdev_state_change(struct net_device *dev)
-+{
-+ if (dev->flags & IFF_UP) {
-+ notifier_call_chain(&netdev_chain, NETDEV_CHANGE, dev);
-+ rtmsg_ifinfo(RTM_NEWLINK, dev, 0);
-+ }
-+}
-+
-+/**
-+ * dev_load - load a network module
-+ * @name: name of interface
-+ *
-+ * If a network interface is not present and the process has suitable
-+ * privileges this function loads the module. If module loading is not
-+ * available in this kernel then it becomes a nop.
-+ */
-+
-+void dev_load(const char *name)
-+{
-+ struct net_device *dev;
-+
-+ read_lock(&dev_base_lock);
-+ dev = __dev_get_by_name(name);
-+ read_unlock(&dev_base_lock);
-+
-+ if (!dev && capable(CAP_SYS_MODULE))
-+ request_module("%s", name);
-+}
-+
-+static int default_rebuild_header(struct sk_buff *skb)
-+{
-+ printk(KERN_DEBUG "%s: default_rebuild_header called -- BUG!\n",
-+ skb->dev ? skb->dev->name : "NULL!!!");
-+ kfree_skb(skb);
-+ return 1;
-+}
-+
-+
-+/**
-+ * dev_open - prepare an interface for use.
-+ * @dev: device to open
-+ *
-+ * Takes a device from down to up state. The device's private open
-+ * function is invoked and then the multicast lists are loaded. Finally
-+ * the device is moved into the up state and a %NETDEV_UP message is
-+ * sent to the netdev notifier chain.
-+ *
-+ * Calling this function on an active interface is a nop. On a failure
-+ * a negative errno code is returned.
-+ */
-+int dev_open(struct net_device *dev)
-+{
-+ int ret = 0;
-+
-+ /*
-+ * Is it already up?
-+ */
-+
-+ if (dev->flags & IFF_UP)
-+ return 0;
-+
-+ /*
-+ * Is it even present?
-+ */
-+ if (!netif_device_present(dev))
-+ return -ENODEV;
-+
-+ /*
-+ * Call device private open method
-+ */
-+ set_bit(__LINK_STATE_START, &dev->state);
-+ if (dev->open) {
-+ ret = dev->open(dev);
-+ if (ret)
-+ clear_bit(__LINK_STATE_START, &dev->state);
-+ }
-+
-+ /*
-+ * If it went open OK then:
-+ */
-+
-+ if (!ret) {
-+ /*
-+ * Set the flags.
-+ */
-+ dev->flags |= IFF_UP;
-+
-+ /*
-+ * Initialize multicasting status
-+ */
-+ dev_mc_upload(dev);
-+
-+ /*
-+ * Wakeup transmit queue engine
-+ */
-+ dev_activate(dev);
-+
-+ /*
-+ * ... and announce new interface.
-+ */
-+ notifier_call_chain(&netdev_chain, NETDEV_UP, dev);
-+ }
-+ return ret;
-+}
-+
-+/**
-+ * dev_close - shutdown an interface.
-+ * @dev: device to shutdown
-+ *
-+ * This function moves an active device into down state. A
-+ * %NETDEV_GOING_DOWN is sent to the netdev notifier chain. The device
-+ * is then deactivated and finally a %NETDEV_DOWN is sent to the notifier
-+ * chain.
-+ */
-+int dev_close(struct net_device *dev)
-+{
-+ if (!(dev->flags & IFF_UP))
-+ return 0;
-+
-+ /*
-+ * Tell people we are going down, so that they can
-+ * prepare to death, when device is still operating.
-+ */
-+ notifier_call_chain(&netdev_chain, NETDEV_GOING_DOWN, dev);
-+
-+ dev_deactivate(dev);
-+
-+ clear_bit(__LINK_STATE_START, &dev->state);
-+
-+ /* Synchronize to scheduled poll. We cannot touch poll list,
-+ * it can be even on different cpu. So just clear netif_running(),
-+ * and wait when poll really will happen. Actually, the best place
-+ * for this is inside dev->stop() after device stopped its irq
-+ * engine, but this requires more changes in devices. */
-+
-+ smp_mb__after_clear_bit(); /* Commit netif_running(). */
-+ while (test_bit(__LINK_STATE_RX_SCHED, &dev->state)) {
-+ /* No hurry. */
-+ current->state = TASK_INTERRUPTIBLE;
-+ schedule_timeout(1);
-+ }
-+
-+ /*
-+ * Call the device specific close. This cannot fail.
-+ * Only if device is UP
-+ *
-+ * We allow it to be called even after a DETACH hot-plug
-+ * event.
-+ */
-+ if (dev->stop)
-+ dev->stop(dev);
-+
-+ /*
-+ * Device is now down.
-+ */
-+
-+ dev->flags &= ~IFF_UP;
-+
-+ /*
-+ * Tell people we are down
-+ */
-+ notifier_call_chain(&netdev_chain, NETDEV_DOWN, dev);
-+
-+ return 0;
-+}
-+
-+
-+/*
-+ * Device change register/unregister. These are not inline or static
-+ * as we export them to the world.
-+ */
-+
-+/**
-+ * register_netdevice_notifier - register a network notifier block
-+ * @nb: notifier
-+ *
-+ * Register a notifier to be called when network device events occur.
-+ * The notifier passed is linked into the kernel structures and must
-+ * not be reused until it has been unregistered. A negative errno code
-+ * is returned on a failure.
-+ *
-+ * When registered all registration and up events are replayed
-+ * to the new notifier to allow device to have a race free
-+ * view of the network device list.
-+ */
-+
-+int register_netdevice_notifier(struct notifier_block *nb)
-+{
-+ struct net_device *dev;
-+ int err;
-+
-+ rtnl_lock();
-+ err = notifier_chain_register(&netdev_chain, nb);
-+ if (!err) {
-+ for (dev = dev_base; dev; dev = dev->next) {
-+ nb->notifier_call(nb, NETDEV_REGISTER, dev);
-+
-+ if (dev->flags & IFF_UP)
-+ nb->notifier_call(nb, NETDEV_UP, dev);
-+ }
-+ }
-+ rtnl_unlock();
-+ return err;
-+}
-+
-+/**
-+ * unregister_netdevice_notifier - unregister a network notifier block
-+ * @nb: notifier
-+ *
-+ * Unregister a notifier previously registered by
-+ * register_netdevice_notifier(). The notifier is unlinked into the
-+ * kernel structures and may then be reused. A negative errno code
-+ * is returned on a failure.
-+ */
-+
-+int unregister_netdevice_notifier(struct notifier_block *nb)
-+{
-+ return notifier_chain_unregister(&netdev_chain, nb);
-+}
-+
-+/**
-+ * call_netdevice_notifiers - call all network notifier blocks
-+ * @val: value passed unmodified to notifier function
-+ * @v: pointer passed unmodified to notifier function
-+ *
-+ * Call all network notifier blocks. Parameters and return value
-+ * are as for notifier_call_chain().
-+ */
-+
-+int call_netdevice_notifiers(unsigned long val, void *v)
-+{
-+ return notifier_call_chain(&netdev_chain, val, v);
-+}
-+
-+/* When > 0 there are consumers of rx skb time stamps */
-+static atomic_t netstamp_needed = ATOMIC_INIT(0);
-+
-+void net_enable_timestamp(void)
-+{
-+ atomic_inc(&netstamp_needed);
-+}
-+
-+void net_disable_timestamp(void)
-+{
-+ atomic_dec(&netstamp_needed);
-+}
-+
-+static inline void net_timestamp(struct timeval *stamp)
-+{
-+ if (atomic_read(&netstamp_needed))
-+ do_gettimeofday(stamp);
-+ else {
-+ stamp->tv_sec = 0;
-+ stamp->tv_usec = 0;
-+ }
-+}
-+
-+/*
-+ * Support routine. Sends outgoing frames to any network
-+ * taps currently in use.
-+ */
-+
-+void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev)
-+{
-+ struct packet_type *ptype;
-+ net_timestamp(&skb->stamp);
-+
-+ rcu_read_lock();
-+ list_for_each_entry_rcu(ptype, &ptype_all, list) {
-+ /* Never send packets back to the socket
-+ * they originated from - MvS (miquels@drinkel.ow.org)
-+ */
-+ if ((ptype->dev == dev || !ptype->dev) &&
-+ (ptype->af_packet_priv == NULL ||
-+ (struct sock *)ptype->af_packet_priv != skb->sk)) {
-+ struct sk_buff *skb2= skb_clone(skb, GFP_ATOMIC);
-+ if (!skb2)
-+ break;
-+
-+ /* skb->nh should be correctly
-+ set by sender, so that the second statement is
-+ just protection against buggy protocols.
-+ */
-+ skb2->mac.raw = skb2->data;
-+
-+ if (skb2->nh.raw < skb2->data ||
-+ skb2->nh.raw > skb2->tail) {
-+ if (net_ratelimit())
-+ printk(KERN_CRIT "protocol %04x is "
-+ "buggy, dev %s\n",
-+ skb2->protocol, dev->name);
-+ skb2->nh.raw = skb2->data;
-+ }
-+
-+ skb2->h.raw = skb2->nh.raw;
-+ skb2->pkt_type = PACKET_OUTGOING;
-+ ptype->func(skb2, skb->dev, ptype);
-+ }
-+ }
-+ rcu_read_unlock();
-+}
-+
-+/*
-+ * Invalidate hardware checksum when packet is to be mangled, and
-+ * complete checksum manually on outgoing path.
-+ */
-+int skb_checksum_help(struct sk_buff *skb, int inward)
-+{
-+ unsigned int csum;
-+ int ret = 0, offset = skb->h.raw - skb->data;
-+
-+ if (inward) {
-+ skb->ip_summed = CHECKSUM_NONE;
-+ goto out;
-+ }
-+
-+ if (skb_cloned(skb)) {
-+ ret = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
-+ if (ret)
-+ goto out;
-+ }
-+
-+ if (offset > (int)skb->len)
-+ BUG();
-+ csum = skb_checksum(skb, offset, skb->len-offset, 0);
-+
-+ offset = skb->tail - skb->h.raw;
-+ if (offset <= 0)
-+ BUG();
-+ if (skb->csum + 2 > offset)
-+ BUG();
-+
-+ *(u16*)(skb->h.raw + skb->csum) = csum_fold(csum);
-+ skb->ip_summed = CHECKSUM_NONE;
-+out:
-+ return ret;
-+}
-+
-+#ifdef CONFIG_HIGHMEM
-+/* Actually, we should eliminate this check as soon as we know, that:
-+ * 1. IOMMU is present and allows to map all the memory.
-+ * 2. No high memory really exists on this machine.
-+ */
-+
-+static inline int illegal_highdma(struct net_device *dev, struct sk_buff *skb)
-+{
-+ int i;
-+
-+ if (dev->features & NETIF_F_HIGHDMA)
-+ return 0;
-+
-+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
-+ if (PageHighMem(skb_shinfo(skb)->frags[i].page))
-+ return 1;
-+
-+ return 0;
-+}
-+#else
-+#define illegal_highdma(dev, skb) (0)
-+#endif
-+
-+extern void skb_release_data(struct sk_buff *);
-+
-+/* Keep head the same: replace data */
-+int __skb_linearize(struct sk_buff *skb, int gfp_mask)
-+{
-+ unsigned int size;
-+ u8 *data;
-+ long offset;
-+ struct skb_shared_info *ninfo;
-+ int headerlen = skb->data - skb->head;
-+ int expand = (skb->tail + skb->data_len) - skb->end;
-+
-+ if (skb_shared(skb))
-+ BUG();
-+
-+ if (expand <= 0)
-+ expand = 0;
-+
-+ size = skb->end - skb->head + expand;
-+ size = SKB_DATA_ALIGN(size);
-+ data = kmalloc(size + sizeof(struct skb_shared_info), gfp_mask);
-+ if (!data)
-+ return -ENOMEM;
-+
-+ /* Copy entire thing */
-+ if (skb_copy_bits(skb, -headerlen, data, headerlen + skb->len))
-+ BUG();
-+
-+ /* Set up shinfo */
-+ ninfo = (struct skb_shared_info*)(data + size);
-+ atomic_set(&ninfo->dataref, 1);
-+ ninfo->tso_size = skb_shinfo(skb)->tso_size;
-+ ninfo->tso_segs = skb_shinfo(skb)->tso_segs;
-+ ninfo->nr_frags = 0;
-+ ninfo->frag_list = NULL;
-+
-+ /* Offset between the two in bytes */
-+ offset = data - skb->head;
-+
-+ /* Free old data. */
-+ skb_release_data(skb);
-+
-+ skb->head = data;
-+ skb->end = data + size;
-+
-+ /* Set up new pointers */
-+ skb->h.raw += offset;
-+ skb->nh.raw += offset;
-+ skb->mac.raw += offset;
-+ skb->tail += offset;
-+ skb->data += offset;
-+
-+ /* We are no longer a clone, even if we were. */
-+ skb->cloned = 0;
-+
-+ skb->tail += skb->data_len;
-+ skb->data_len = 0;
-+ return 0;
-+}
-+
-+#define HARD_TX_LOCK(dev, cpu) { \
-+ if ((dev->features & NETIF_F_LLTX) == 0) { \
-+ spin_lock(&dev->xmit_lock); \
-+ dev->xmit_lock_owner = cpu; \
-+ } \
-+}
-+
-+#define HARD_TX_UNLOCK(dev) { \
-+ if ((dev->features & NETIF_F_LLTX) == 0) { \
-+ dev->xmit_lock_owner = -1; \
-+ spin_unlock(&dev->xmit_lock); \
-+ } \
-+}
-+
-+/**
-+ * dev_queue_xmit - transmit a buffer
-+ * @skb: buffer to transmit
-+ *
-+ * Queue a buffer for transmission to a network device. The caller must
-+ * have set the device and priority and built the buffer before calling
-+ * this function. The function can be called from an interrupt.
-+ *
-+ * A negative errno code is returned on a failure. A success does not
-+ * guarantee the frame will be transmitted as it may be dropped due
-+ * to congestion or traffic shaping.
-+ *
-+ * -----------------------------------------------------------------------------------
-+ * I notice this method can also return errors from the queue disciplines,
-+ * including NET_XMIT_DROP, which is a positive value. So, errors can also
-+ * be positive.
-+ *
-+ * Regardless of the return value, the skb is consumed, so it is currently
-+ * difficult to retry a send to this method. (You can bump the ref count
-+ * before sending to hold a reference for retry if you are careful.)
-+ *
-+ * When calling this method, interrupts MUST be enabled. This is because
-+ * the BH enable code must have IRQs enabled so that it will not deadlock.
-+ * --BLG
-+ */
-+
-+int dev_queue_xmit(struct sk_buff *skb)
-+{
-+ struct net_device *dev = skb->dev;
-+ struct Qdisc *q;
-+ int rc = -ENOMEM;
-+
-+ if (skb_shinfo(skb)->frag_list &&
-+ !(dev->features & NETIF_F_FRAGLIST) &&
-+ __skb_linearize(skb, GFP_ATOMIC))
-+ goto out_kfree_skb;
-+
-+ /* Fragmented skb is linearized if device does not support SG,
-+ * or if at least one of fragments is in highmem and device
-+ * does not support DMA from it.
-+ */
-+ if (skb_shinfo(skb)->nr_frags &&
-+ (!(dev->features & NETIF_F_SG) || illegal_highdma(dev, skb)) &&
-+ __skb_linearize(skb, GFP_ATOMIC))
-+ goto out_kfree_skb;
-+
-+ /* If packet is not checksummed and device does not support
-+ * checksumming for this protocol, complete checksumming here.
-+ */
-+ if (skb->ip_summed == CHECKSUM_HW &&
-+ (!(dev->features & (NETIF_F_HW_CSUM | NETIF_F_NO_CSUM)) &&
-+ (!(dev->features & NETIF_F_IP_CSUM) ||
-+ skb->protocol != htons(ETH_P_IP))))
-+ if (skb_checksum_help(skb, 0))
-+ goto out_kfree_skb;
-+
-+ /* Disable soft irqs for various locks below. Also
-+ * stops preemption for RCU.
-+ */
-+ local_bh_disable();
-+
-+ /* Updates of qdisc are serialized by queue_lock.
-+ * The struct Qdisc which is pointed to by qdisc is now a
-+ * rcu structure - it may be accessed without acquiring
-+ * a lock (but the structure may be stale.) The freeing of the
-+ * qdisc will be deferred until it's known that there are no
-+ * more references to it.
-+ *
-+ * If the qdisc has an enqueue function, we still need to
-+ * hold the queue_lock before calling it, since queue_lock
-+ * also serializes access to the device queue.
-+ */
-+
-+ q = rcu_dereference(dev->qdisc);
-+#ifdef CONFIG_NET_CLS_ACT
-+ skb->tc_verd = SET_TC_AT(skb->tc_verd,AT_EGRESS);
-+#endif
-+ if (q->enqueue) {
-+ /* Grab device queue */
-+ spin_lock(&dev->queue_lock);
-+
-+ rc = q->enqueue(skb, q);
-+
-+ qdisc_run(dev);
-+
-+ spin_unlock(&dev->queue_lock);
-+ rc = rc == NET_XMIT_BYPASS ? NET_XMIT_SUCCESS : rc;
-+ goto out;
-+ }
-+
-+ /* The device has no queue. Common case for software devices:
-+ loopback, all the sorts of tunnels...
-+
-+ Really, it is unlikely that xmit_lock protection is necessary here.
-+ (f.e. loopback and IP tunnels are clean ignoring statistics
-+ counters.)
-+ However, it is possible, that they rely on protection
-+ made by us here.
-+
-+ Check this and shot the lock. It is not prone from deadlocks.
-+ Either shot noqueue qdisc, it is even simpler 8)
-+ */
-+ if (dev->flags & IFF_UP) {
-+ int cpu = smp_processor_id(); /* ok because BHs are off */
-+
-+ if (dev->xmit_lock_owner != cpu) {
-+
-+ HARD_TX_LOCK(dev, cpu);
-+
-+ if (!netif_queue_stopped(dev)) {
-+ if (netdev_nit)
-+ dev_queue_xmit_nit(skb, dev);
-+
-+ rc = 0;
-+ if (!dev->hard_start_xmit(skb, dev)) {
-+ HARD_TX_UNLOCK(dev);
-+ goto out;
-+ }
-+ }
-+ HARD_TX_UNLOCK(dev);
-+ if (net_ratelimit())
-+ printk(KERN_CRIT "Virtual device %s asks to "
-+ "queue packet!\n", dev->name);
-+ } else {
-+ /* Recursion is detected! It is possible,
-+ * unfortunately */
-+ if (net_ratelimit())
-+ printk(KERN_CRIT "Dead loop on virtual device "
-+ "%s, fix it urgently!\n", dev->name);
-+ }
-+ }
-+
-+ rc = -ENETDOWN;
-+ local_bh_enable();
-+
-+out_kfree_skb:
-+ kfree_skb(skb);
-+ return rc;
-+out:
-+ local_bh_enable();
-+ return rc;
-+}
-+
-+
-+/*=======================================================================
-+ Receiver routines
-+ =======================================================================*/
-+
-+int netdev_max_backlog = 300;
-+int weight_p = 64; /* old backlog weight */
-+/* These numbers are selected based on intuition and some
-+ * experimentatiom, if you have more scientific way of doing this
-+ * please go ahead and fix things.
-+ */
-+int no_cong_thresh = 10;
-+int no_cong = 20;
-+int lo_cong = 100;
-+int mod_cong = 290;
-+
-+DEFINE_PER_CPU(struct netif_rx_stats, netdev_rx_stat) = { 0, };
-+
-+
-+static void get_sample_stats(int cpu)
-+{
-+#ifdef RAND_LIE
-+ unsigned long rd;
-+ int rq;
-+#endif
-+ struct softnet_data *sd = &per_cpu(softnet_data, cpu);
-+ int blog = sd->input_pkt_queue.qlen;
-+ int avg_blog = sd->avg_blog;
-+
-+ avg_blog = (avg_blog >> 1) + (blog >> 1);
-+
-+ if (avg_blog > mod_cong) {
-+ /* Above moderate congestion levels. */
-+ sd->cng_level = NET_RX_CN_HIGH;
-+#ifdef RAND_LIE
-+ rd = net_random();
-+ rq = rd % netdev_max_backlog;
-+ if (rq < avg_blog) /* unlucky bastard */
-+ sd->cng_level = NET_RX_DROP;
-+#endif
-+ } else if (avg_blog > lo_cong) {
-+ sd->cng_level = NET_RX_CN_MOD;
-+#ifdef RAND_LIE
-+ rd = net_random();
-+ rq = rd % netdev_max_backlog;
-+ if (rq < avg_blog) /* unlucky bastard */
-+ sd->cng_level = NET_RX_CN_HIGH;
-+#endif
-+ } else if (avg_blog > no_cong)
-+ sd->cng_level = NET_RX_CN_LOW;
-+ else /* no congestion */
-+ sd->cng_level = NET_RX_SUCCESS;
-+
-+ sd->avg_blog = avg_blog;
-+}
-+
-+#ifdef OFFLINE_SAMPLE
-+static void sample_queue(unsigned long dummy)
-+{
-+/* 10 ms 0r 1ms -- i don't care -- JHS */
-+ int next_tick = 1;
-+ int cpu = smp_processor_id();
-+
-+ get_sample_stats(cpu);
-+ next_tick += jiffies;
-+ mod_timer(&samp_timer, next_tick);
-+}
-+#endif
-+
-+
-+/**
-+ * netif_rx - post buffer to the network code
-+ * @skb: buffer to post
-+ *
-+ * This function receives a packet from a device driver and queues it for
-+ * the upper (protocol) levels to process. It always succeeds. The buffer
-+ * may be dropped during processing for congestion control or by the
-+ * protocol layers.
-+ *
-+ * return values:
-+ * NET_RX_SUCCESS (no congestion)
-+ * NET_RX_CN_LOW (low congestion)
-+ * NET_RX_CN_MOD (moderate congestion)
-+ * NET_RX_CN_HIGH (high congestion)
-+ * NET_RX_DROP (packet was dropped)
-+ *
-+ */
-+
-+int netif_rx(struct sk_buff *skb)
-+{
-+ int this_cpu;
-+ struct softnet_data *queue;
-+ unsigned long flags;
-+
-+ /* if netpoll wants it, pretend we never saw it */
-+ if (netpoll_rx(skb))
-+ return NET_RX_DROP;
-+
-+ if (!skb->stamp.tv_sec)
-+ net_timestamp(&skb->stamp);
-+
-+ /*
-+ * The code is rearranged so that the path is the most
-+ * short when CPU is congested, but is still operating.
-+ */
-+ local_irq_save(flags);
-+ this_cpu = smp_processor_id();
-+ queue = &__get_cpu_var(softnet_data);
-+
-+ __get_cpu_var(netdev_rx_stat).total++;
-+ if (queue->input_pkt_queue.qlen <= netdev_max_backlog) {
-+ if (queue->input_pkt_queue.qlen) {
-+ if (queue->throttle)
-+ goto drop;
-+
-+enqueue:
-+ dev_hold(skb->dev);
-+ __skb_queue_tail(&queue->input_pkt_queue, skb);
-+#ifndef OFFLINE_SAMPLE
-+ get_sample_stats(this_cpu);
-+#endif
-+ local_irq_restore(flags);
-+ return queue->cng_level;
-+ }
-+
-+ if (queue->throttle)
-+ queue->throttle = 0;
-+
-+ netif_rx_schedule(&queue->backlog_dev);
-+ goto enqueue;
-+ }
-+
-+ if (!queue->throttle) {
-+ queue->throttle = 1;
-+ __get_cpu_var(netdev_rx_stat).throttled++;
-+ }
-+
-+drop:
-+ __get_cpu_var(netdev_rx_stat).dropped++;
-+ local_irq_restore(flags);
-+
-+ kfree_skb(skb);
-+ return NET_RX_DROP;
-+}
-+
-+int netif_rx_ni(struct sk_buff *skb)
-+{
-+ int err;
-+
-+ preempt_disable();
-+ err = netif_rx(skb);
-+ if (local_softirq_pending())
-+ do_softirq();
-+ preempt_enable();
-+
-+ return err;
-+}
-+
-+EXPORT_SYMBOL(netif_rx_ni);
-+
-+static __inline__ void skb_bond(struct sk_buff *skb)
-+{
-+ struct net_device *dev = skb->dev;
-+
-+ if (dev->master) {
-+ skb->real_dev = skb->dev;
-+ skb->dev = dev->master;
-+ }
-+}
-+
-+static void net_tx_action(struct softirq_action *h)
-+{
-+ struct softnet_data *sd = &__get_cpu_var(softnet_data);
-+
-+ if (sd->completion_queue) {
-+ struct sk_buff *clist;
-+
-+ local_irq_disable();
-+ clist = sd->completion_queue;
-+ sd->completion_queue = NULL;
-+ local_irq_enable();
-+
-+ while (clist) {
-+ struct sk_buff *skb = clist;
-+ clist = clist->next;
-+
-+ BUG_TRAP(!atomic_read(&skb->users));
-+ __kfree_skb(skb);
-+ }
-+ }
-+
-+ if (sd->output_queue) {
-+ struct net_device *head;
-+
-+ local_irq_disable();
-+ head = sd->output_queue;
-+ sd->output_queue = NULL;
-+ local_irq_enable();
-+
-+ while (head) {
-+ struct net_device *dev = head;
-+ head = head->next_sched;
-+
-+ smp_mb__before_clear_bit();
-+ clear_bit(__LINK_STATE_SCHED, &dev->state);
-+
-+ if (spin_trylock(&dev->queue_lock)) {
-+ qdisc_run(dev);
-+ spin_unlock(&dev->queue_lock);
-+ } else {
-+ netif_schedule(dev);
-+ }
-+ }
-+ }
-+}
-+
-+static __inline__ int deliver_skb(struct sk_buff *skb,
-+ struct packet_type *pt_prev)
-+{
-+ atomic_inc(&skb->users);
-+ return pt_prev->func(skb, skb->dev, pt_prev);
-+}
-+
-+#if defined(CONFIG_BRIDGE) || defined (CONFIG_BRIDGE_MODULE)
-+int (*br_handle_frame_hook)(struct net_bridge_port *p, struct sk_buff **pskb);
-+struct net_bridge;
-+struct net_bridge_fdb_entry *(*br_fdb_get_hook)(struct net_bridge *br,
-+ unsigned char *addr);
-+void (*br_fdb_put_hook)(struct net_bridge_fdb_entry *ent);
-+
-+static __inline__ int handle_bridge(struct sk_buff **pskb,
-+ struct packet_type **pt_prev, int *ret)
-+{
-+ struct net_bridge_port *port;
-+
-+ if ((*pskb)->pkt_type == PACKET_LOOPBACK ||
-+ (port = rcu_dereference((*pskb)->dev->br_port)) == NULL)
-+ return 0;
-+
-+ if (*pt_prev) {
-+ *ret = deliver_skb(*pskb, *pt_prev);
-+ *pt_prev = NULL;
-+ }
-+
-+ return br_handle_frame_hook(port, pskb);
-+}
-+#else
-+#define handle_bridge(skb, pt_prev, ret) (0)
-+#endif
-+
-+#ifdef CONFIG_NET_CLS_ACT
-+/* TODO: Maybe we should just force sch_ingress to be compiled in
-+ * when CONFIG_NET_CLS_ACT is? otherwise some useless instructions
-+ * a compare and 2 stores extra right now if we dont have it on
-+ * but have CONFIG_NET_CLS_ACT
-+ * NOTE: This doesnt stop any functionality; if you dont have
-+ * the ingress scheduler, you just cant add policies on ingress.
-+ *
-+ */
-+static int ing_filter(struct sk_buff *skb)
-+{
-+ struct Qdisc *q;
-+ struct net_device *dev = skb->dev;
-+ int result = TC_ACT_OK;
-+
-+ if (dev->qdisc_ingress) {
-+ __u32 ttl = (__u32) G_TC_RTTL(skb->tc_verd);
-+ if (MAX_RED_LOOP < ttl++) {
-+ printk("Redir loop detected Dropping packet (%s->%s)\n",
-+ skb->input_dev?skb->input_dev->name:"??",skb->dev->name);
-+ return TC_ACT_SHOT;
-+ }
-+
-+ skb->tc_verd = SET_TC_RTTL(skb->tc_verd,ttl);
-+
-+ skb->tc_verd = SET_TC_AT(skb->tc_verd,AT_INGRESS);
-+ if (NULL == skb->input_dev) {
-+ skb->input_dev = skb->dev;
-+ printk("ing_filter: fixed %s out %s\n",skb->input_dev->name,skb->dev->name);
-+ }
-+ spin_lock(&dev->ingress_lock);
-+ if ((q = dev->qdisc_ingress) != NULL)
-+ result = q->enqueue(skb, q);
-+ spin_unlock(&dev->ingress_lock);
-+
-+ }
-+
-+ return result;
-+}
-+#endif
-+
-+int netif_receive_skb(struct sk_buff *skb)
-+{
-+ struct packet_type *ptype, *pt_prev;
-+ int ret = NET_RX_DROP;
-+ unsigned short type;
-+
-+ /* if we've gotten here through NAPI, check netpoll */
-+ if (skb->dev->poll && netpoll_rx(skb))
-+ return NET_RX_DROP;
-+
-+ if (!skb->stamp.tv_sec)
-+ net_timestamp(&skb->stamp);
-+
-+ skb_bond(skb);
-+
-+ __get_cpu_var(netdev_rx_stat).total++;
-+
-+ skb->h.raw = skb->nh.raw = skb->data;
-+ skb->mac_len = skb->nh.raw - skb->mac.raw;
-+
-+ pt_prev = NULL;
-+
-+ rcu_read_lock();
-+
-+#ifdef CONFIG_NET_CLS_ACT
-+ if (skb->tc_verd & TC_NCLS) {
-+ skb->tc_verd = CLR_TC_NCLS(skb->tc_verd);
-+ goto ncls;
-+ }
-+#endif
-+
-+ list_for_each_entry_rcu(ptype, &ptype_all, list) {
-+ if (!ptype->dev || ptype->dev == skb->dev) {
-+ if (pt_prev)
-+ ret = deliver_skb(skb, pt_prev);
-+ pt_prev = ptype;
-+ }
-+ }
-+
-+#ifdef CONFIG_NET_CLS_ACT
-+ if (pt_prev) {
-+ ret = deliver_skb(skb, pt_prev);
-+ pt_prev = NULL; /* noone else should process this after*/
-+ } else {
-+ skb->tc_verd = SET_TC_OK2MUNGE(skb->tc_verd);
-+ }
-+
-+ ret = ing_filter(skb);
-+
-+ if (ret == TC_ACT_SHOT || (ret == TC_ACT_STOLEN)) {
-+ kfree_skb(skb);
-+ goto out;
-+ }
-+
-+ skb->tc_verd = 0;
-+ncls:
-+#endif
-+
-+ handle_diverter(skb);
-+
-+ if (handle_bridge(&skb, &pt_prev, &ret))
-+ goto out;
-+
-+ type = skb->protocol;
-+ list_for_each_entry_rcu(ptype, &ptype_base[ntohs(type)&15], list) {
-+ if (ptype->type == type &&
-+ (!ptype->dev || ptype->dev == skb->dev)) {
-+ if (pt_prev)
-+ ret = deliver_skb(skb, pt_prev);
-+ pt_prev = ptype;
-+ }
-+ }
-+
-+ if (pt_prev) {
-+ ret = pt_prev->func(skb, skb->dev, pt_prev);
-+ } else {
-+ kfree_skb(skb);
-+ /* Jamal, now you will not able to escape explaining
-+ * me how you were going to use this. :-)
-+ */
-+ ret = NET_RX_DROP;
-+ }
-+
-+out:
-+ rcu_read_unlock();
-+ return ret;
-+}
-+
-+static int process_backlog(struct net_device *backlog_dev, int *budget)
-+{
-+ int work = 0;
-+ int quota = min(backlog_dev->quota, *budget);
-+ struct softnet_data *queue = &__get_cpu_var(softnet_data);
-+ unsigned long start_time = jiffies;
-+
-+ backlog_dev->weight = weight_p;
-+ for (;;) {
-+ struct sk_buff *skb;
-+ struct net_device *dev;
-+
-+ local_irq_disable();
-+ skb = __skb_dequeue(&queue->input_pkt_queue);
-+ if (!skb)
-+ goto job_done;
-+ local_irq_enable();
-+
-+ dev = skb->dev;
-+
-+ netif_receive_skb(skb);
-+
-+ dev_put(dev);
-+
-+ work++;
-+
-+ if (work >= quota || jiffies - start_time > 1)
-+ break;
-+
-+ }
-+
-+ backlog_dev->quota -= work;
-+ *budget -= work;
-+ return -1;
-+
-+job_done:
-+ backlog_dev->quota -= work;
-+ *budget -= work;
-+
-+ list_del(&backlog_dev->poll_list);
-+ smp_mb__before_clear_bit();
-+ netif_poll_enable(backlog_dev);
-+
-+ if (queue->throttle)
-+ queue->throttle = 0;
-+ local_irq_enable();
-+ return 0;
-+}
-+
-+static void net_rx_action(struct softirq_action *h)
-+{
-+ struct softnet_data *queue = &__get_cpu_var(softnet_data);
-+ unsigned long start_time = jiffies;
-+ int budget = netdev_max_backlog;
-+
-+
-+ local_irq_disable();
-+
-+ while (!list_empty(&queue->poll_list)) {
-+ struct net_device *dev;
-+
-+ if (budget <= 0 || jiffies - start_time > 1)
-+ goto softnet_break;
-+
-+ local_irq_enable();
-+
-+ dev = list_entry(queue->poll_list.next,
-+ struct net_device, poll_list);
-+ netpoll_poll_lock(dev);
-+
-+ if (dev->quota <= 0 || dev->poll(dev, &budget)) {
-+ netpoll_poll_unlock(dev);
-+ local_irq_disable();
-+ list_del(&dev->poll_list);
-+ list_add_tail(&dev->poll_list, &queue->poll_list);
-+ if (dev->quota < 0)
-+ dev->quota += dev->weight;
-+ else
-+ dev->quota = dev->weight;
-+ } else {
-+ netpoll_poll_unlock(dev);
-+ dev_put(dev);
-+ local_irq_disable();
-+ }
-+ }
-+out:
-+ local_irq_enable();
-+ return;
-+
-+softnet_break:
-+ __get_cpu_var(netdev_rx_stat).time_squeeze++;
-+ __raise_softirq_irqoff(NET_RX_SOFTIRQ);
-+ goto out;
-+}
-+
-+static gifconf_func_t * gifconf_list [NPROTO];
-+
-+/**
-+ * register_gifconf - register a SIOCGIF handler
-+ * @family: Address family
-+ * @gifconf: Function handler
-+ *
-+ * Register protocol dependent address dumping routines. The handler
-+ * that is passed must not be freed or reused until it has been replaced
-+ * by another handler.
-+ */
-+int register_gifconf(unsigned int family, gifconf_func_t * gifconf)
-+{
-+ if (family >= NPROTO)
-+ return -EINVAL;
-+ gifconf_list[family] = gifconf;
-+ return 0;
-+}
-+
-+
-+/*
-+ * Map an interface index to its name (SIOCGIFNAME)
-+ */
-+
-+/*
-+ * We need this ioctl for efficient implementation of the
-+ * if_indextoname() function required by the IPv6 API. Without
-+ * it, we would have to search all the interfaces to find a
-+ * match. --pb
-+ */
-+
-+static int dev_ifname(struct ifreq __user *arg)
-+{
-+ struct net_device *dev;
-+ struct ifreq ifr;
-+
-+ /*
-+ * Fetch the caller's info block.
-+ */
-+
-+ if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
-+ return -EFAULT;
-+
-+ read_lock(&dev_base_lock);
-+ dev = __dev_get_by_index(ifr.ifr_ifindex);
-+ if (!dev) {
-+ read_unlock(&dev_base_lock);
-+ return -ENODEV;
-+ }
-+
-+ strcpy(ifr.ifr_name, dev->name);
-+ read_unlock(&dev_base_lock);
-+
-+ if (copy_to_user(arg, &ifr, sizeof(struct ifreq)))
-+ return -EFAULT;
-+ return 0;
-+}
-+
-+/*
-+ * Perform a SIOCGIFCONF call. This structure will change
-+ * size eventually, and there is nothing I can do about it.
-+ * Thus we will need a 'compatibility mode'.
-+ */
-+
-+static int dev_ifconf(char __user *arg)
-+{
-+ struct ifconf ifc;
-+ struct net_device *dev;
-+ char __user *pos;
-+ int len;
-+ int total;
-+ int i;
-+
-+ /*
-+ * Fetch the caller's info block.
-+ */
-+
-+ if (copy_from_user(&ifc, arg, sizeof(struct ifconf)))
-+ return -EFAULT;
-+
-+ pos = ifc.ifc_buf;
-+ len = ifc.ifc_len;
-+
-+ /*
-+ * Loop over the interfaces, and write an info block for each.
-+ */
-+
-+ total = 0;
-+ for (dev = dev_base; dev; dev = dev->next) {
-+ for (i = 0; i < NPROTO; i++) {
-+ if (gifconf_list[i]) {
-+ int done;
-+ if (!pos)
-+ done = gifconf_list[i](dev, NULL, 0);
-+ else
-+ done = gifconf_list[i](dev, pos + total,
-+ len - total);
-+ if (done < 0)
-+ return -EFAULT;
-+ total += done;
-+ }
-+ }
-+ }
-+
-+ /*
-+ * All done. Write the updated control block back to the caller.
-+ */
-+ ifc.ifc_len = total;
-+
-+ /*
-+ * Both BSD and Solaris return 0 here, so we do too.
-+ */
-+ return copy_to_user(arg, &ifc, sizeof(struct ifconf)) ? -EFAULT : 0;
-+}
-+
-+#ifdef CONFIG_PROC_FS
-+/*
-+ * This is invoked by the /proc filesystem handler to display a device
-+ * in detail.
-+ */
-+static __inline__ struct net_device *dev_get_idx(loff_t pos)
-+{
-+ struct net_device *dev;
-+ loff_t i;
-+
-+ for (i = 0, dev = dev_base; dev && i < pos; ++i, dev = dev->next);
-+
-+ return i == pos ? dev : NULL;
-+}
-+
-+void *dev_seq_start(struct seq_file *seq, loff_t *pos)
-+{
-+ read_lock(&dev_base_lock);
-+ return *pos ? dev_get_idx(*pos - 1) : SEQ_START_TOKEN;
-+}
-+
-+void *dev_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-+{
-+ ++*pos;
-+ return v == SEQ_START_TOKEN ? dev_base : ((struct net_device *)v)->next;
-+}
-+
-+void dev_seq_stop(struct seq_file *seq, void *v)
-+{
-+ read_unlock(&dev_base_lock);
-+}
-+
-+static void dev_seq_printf_stats(struct seq_file *seq, struct net_device *dev)
-+{
-+ if (dev->get_stats) {
-+ struct net_device_stats *stats = dev->get_stats(dev);
-+
-+ seq_printf(seq, "%6s:%8lu %7lu %4lu %4lu %4lu %5lu %10lu %9lu "
-+ "%8lu %7lu %4lu %4lu %4lu %5lu %7lu %10lu\n",
-+ dev->name, stats->rx_bytes, stats->rx_packets,
-+ stats->rx_errors,
-+ stats->rx_dropped + stats->rx_missed_errors,
-+ stats->rx_fifo_errors,
-+ stats->rx_length_errors + stats->rx_over_errors +
-+ stats->rx_crc_errors + stats->rx_frame_errors,
-+ stats->rx_compressed, stats->multicast,
-+ stats->tx_bytes, stats->tx_packets,
-+ stats->tx_errors, stats->tx_dropped,
-+ stats->tx_fifo_errors, stats->collisions,
-+ stats->tx_carrier_errors +
-+ stats->tx_aborted_errors +
-+ stats->tx_window_errors +
-+ stats->tx_heartbeat_errors,
-+ stats->tx_compressed);
-+ } else
-+ seq_printf(seq, "%6s: No statistics available.\n", dev->name);
-+}
-+
-+/*
-+ * Called from the PROCfs module. This now uses the new arbitrary sized
-+ * /proc/net interface to create /proc/net/dev
-+ */
-+static int dev_seq_show(struct seq_file *seq, void *v)
-+{
-+ if (v == SEQ_START_TOKEN)
-+ seq_puts(seq, "Inter-| Receive "
-+ " | Transmit\n"
-+ " face |bytes packets errs drop fifo frame "
-+ "compressed multicast|bytes packets errs "
-+ "drop fifo colls carrier compressed\n");
-+ else
-+ dev_seq_printf_stats(seq, v);
-+ return 0;
-+}
-+
-+static struct netif_rx_stats *softnet_get_online(loff_t *pos)
-+{
-+ struct netif_rx_stats *rc = NULL;
-+
-+ while (*pos < NR_CPUS)
-+ if (cpu_online(*pos)) {
-+ rc = &per_cpu(netdev_rx_stat, *pos);
-+ break;
-+ } else
-+ ++*pos;
-+ return rc;
-+}
-+
-+static void *softnet_seq_start(struct seq_file *seq, loff_t *pos)
-+{
-+ return softnet_get_online(pos);
-+}
-+
-+static void *softnet_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-+{
-+ ++*pos;
-+ return softnet_get_online(pos);
-+}
-+
-+static void softnet_seq_stop(struct seq_file *seq, void *v)
-+{
-+}
-+
-+static int softnet_seq_show(struct seq_file *seq, void *v)
-+{
-+ struct netif_rx_stats *s = v;
-+
-+ seq_printf(seq, "%08x %08x %08x %08x %08x %08x %08x %08x %08x\n",
-+ s->total, s->dropped, s->time_squeeze, s->throttled,
-+ s->fastroute_hit, s->fastroute_success, s->fastroute_defer,
-+ s->fastroute_deferred_out,
-+#if 0
-+ s->fastroute_latency_reduction
-+#else
-+ s->cpu_collision
-+#endif
-+ );
-+ return 0;
-+}
-+
-+static struct seq_operations dev_seq_ops = {
-+ .start = dev_seq_start,
-+ .next = dev_seq_next,
-+ .stop = dev_seq_stop,
-+ .show = dev_seq_show,
-+};
-+
-+static int dev_seq_open(struct inode *inode, struct file *file)
-+{
-+ return seq_open(file, &dev_seq_ops);
-+}
-+
-+static struct file_operations dev_seq_fops = {
-+ .owner = THIS_MODULE,
-+ .open = dev_seq_open,
-+ .read = seq_read,
-+ .llseek = seq_lseek,
-+ .release = seq_release,
-+};
-+
-+static struct seq_operations softnet_seq_ops = {
-+ .start = softnet_seq_start,
-+ .next = softnet_seq_next,
-+ .stop = softnet_seq_stop,
-+ .show = softnet_seq_show,
-+};
-+
-+static int softnet_seq_open(struct inode *inode, struct file *file)
-+{
-+ return seq_open(file, &softnet_seq_ops);
-+}
-+
-+static struct file_operations softnet_seq_fops = {
-+ .owner = THIS_MODULE,
-+ .open = softnet_seq_open,
-+ .read = seq_read,
-+ .llseek = seq_lseek,
-+ .release = seq_release,
-+};
-+
-+#ifdef WIRELESS_EXT
-+extern int wireless_proc_init(void);
-+#else
-+#define wireless_proc_init() 0
-+#endif
-+
-+static int __init dev_proc_init(void)
-+{
-+ int rc = -ENOMEM;
-+
-+ if (!proc_net_fops_create("dev", S_IRUGO, &dev_seq_fops))
-+ goto out;
-+ if (!proc_net_fops_create("softnet_stat", S_IRUGO, &softnet_seq_fops))
-+ goto out_dev;
-+ if (wireless_proc_init())
-+ goto out_softnet;
-+ rc = 0;
-+out:
-+ return rc;
-+out_softnet:
-+ proc_net_remove("softnet_stat");
-+out_dev:
-+ proc_net_remove("dev");
-+ goto out;
-+}
-+#else
-+#define dev_proc_init() 0
-+#endif /* CONFIG_PROC_FS */
-+
-+
-+/**
-+ * netdev_set_master - set up master/slave pair
-+ * @slave: slave device
-+ * @master: new master device
-+ *
-+ * Changes the master device of the slave. Pass %NULL to break the
-+ * bonding. The caller must hold the RTNL semaphore. On a failure
-+ * a negative errno code is returned. On success the reference counts
-+ * are adjusted, %RTM_NEWLINK is sent to the routing socket and the
-+ * function returns zero.
-+ */
-+int netdev_set_master(struct net_device *slave, struct net_device *master)
-+{
-+ struct net_device *old = slave->master;
-+
-+ ASSERT_RTNL();
-+
-+ if (master) {
-+ if (old)
-+ return -EBUSY;
-+ dev_hold(master);
-+ }
-+
-+ slave->master = master;
-+
-+ synchronize_net();
-+
-+ if (old)
-+ dev_put(old);
-+
-+ if (master)
-+ slave->flags |= IFF_SLAVE;
-+ else
-+ slave->flags &= ~IFF_SLAVE;
-+
-+ rtmsg_ifinfo(RTM_NEWLINK, slave, IFF_SLAVE);
-+ return 0;
-+}
-+
-+/**
-+ * dev_set_promiscuity - update promiscuity count on a device
-+ * @dev: device
-+ * @inc: modifier
-+ *
-+ * Add or remove promsicuity from a device. While the count in the device
-+ * remains above zero the interface remains promiscuous. Once it hits zero
-+ * the device reverts back to normal filtering operation. A negative inc
-+ * value is used to drop promiscuity on the device.
-+ */
-+void dev_set_promiscuity(struct net_device *dev, int inc)
-+{
-+ unsigned short old_flags = dev->flags;
-+
-+ dev->flags |= IFF_PROMISC;
-+ if ((dev->promiscuity += inc) == 0)
-+ dev->flags &= ~IFF_PROMISC;
-+ if (dev->flags ^ old_flags) {
-+ dev_mc_upload(dev);
-+ printk(KERN_INFO "device %s %s promiscuous mode\n",
-+ dev->name, (dev->flags & IFF_PROMISC) ? "entered" :
-+ "left");
-+ }
-+}
-+
-+/**
-+ * dev_set_allmulti - update allmulti count on a device
-+ * @dev: device
-+ * @inc: modifier
-+ *
-+ * Add or remove reception of all multicast frames to a device. While the
-+ * count in the device remains above zero the interface remains listening
-+ * to all interfaces. Once it hits zero the device reverts back to normal
-+ * filtering operation. A negative @inc value is used to drop the counter
-+ * when releasing a resource needing all multicasts.
-+ */
-+
-+void dev_set_allmulti(struct net_device *dev, int inc)
-+{
-+ unsigned short old_flags = dev->flags;
-+
-+ dev->flags |= IFF_ALLMULTI;
-+ if ((dev->allmulti += inc) == 0)
-+ dev->flags &= ~IFF_ALLMULTI;
-+ if (dev->flags ^ old_flags)
-+ dev_mc_upload(dev);
-+}
-+
-+unsigned dev_get_flags(const struct net_device *dev)
-+{
-+ unsigned flags;
-+
-+ flags = (dev->flags & ~(IFF_PROMISC |
-+ IFF_ALLMULTI |
-+ IFF_RUNNING)) |
-+ (dev->gflags & (IFF_PROMISC |
-+ IFF_ALLMULTI));
-+
-+ if (netif_running(dev) && netif_carrier_ok(dev))
-+ flags |= IFF_RUNNING;
-+
-+ return flags;
-+}
-+
-+int dev_change_flags(struct net_device *dev, unsigned flags)
-+{
-+ int ret;
-+ int old_flags = dev->flags;
-+
-+ /*
-+ * Set the flags on our device.
-+ */
-+
-+ dev->flags = (flags & (IFF_DEBUG | IFF_NOTRAILERS | IFF_NOARP |
-+ IFF_DYNAMIC | IFF_MULTICAST | IFF_PORTSEL |
-+ IFF_AUTOMEDIA)) |
-+ (dev->flags & (IFF_UP | IFF_VOLATILE | IFF_PROMISC |
-+ IFF_ALLMULTI));
-+
-+ /*
-+ * Load in the correct multicast list now the flags have changed.
-+ */
-+
-+ dev_mc_upload(dev);
-+
-+ /*
-+ * Have we downed the interface. We handle IFF_UP ourselves
-+ * according to user attempts to set it, rather than blindly
-+ * setting it.
-+ */
-+
-+ ret = 0;
-+ if ((old_flags ^ flags) & IFF_UP) { /* Bit is different ? */
-+ ret = ((old_flags & IFF_UP) ? dev_close : dev_open)(dev);
-+
-+ if (!ret)
-+ dev_mc_upload(dev);
-+ }
-+
-+ if (dev->flags & IFF_UP &&
-+ ((old_flags ^ dev->flags) &~ (IFF_UP | IFF_PROMISC | IFF_ALLMULTI |
-+ IFF_VOLATILE)))
-+ notifier_call_chain(&netdev_chain, NETDEV_CHANGE, dev);
-+
-+ if ((flags ^ dev->gflags) & IFF_PROMISC) {
-+ int inc = (flags & IFF_PROMISC) ? +1 : -1;
-+ dev->gflags ^= IFF_PROMISC;
-+ dev_set_promiscuity(dev, inc);
-+ }
-+
-+ /* NOTE: order of synchronization of IFF_PROMISC and IFF_ALLMULTI
-+ is important. Some (broken) drivers set IFF_PROMISC, when
-+ IFF_ALLMULTI is requested not asking us and not reporting.
-+ */
-+ if ((flags ^ dev->gflags) & IFF_ALLMULTI) {
-+ int inc = (flags & IFF_ALLMULTI) ? +1 : -1;
-+ dev->gflags ^= IFF_ALLMULTI;
-+ dev_set_allmulti(dev, inc);
-+ }
-+
-+ if (old_flags ^ dev->flags)
-+ rtmsg_ifinfo(RTM_NEWLINK, dev, old_flags ^ dev->flags);
-+
-+ return ret;
-+}
-+
-+int dev_set_mtu(struct net_device *dev, int new_mtu)
-+{
-+ int err;
-+
-+ if (new_mtu == dev->mtu)
-+ return 0;
-+
-+ /* MTU must be positive. */
-+ if (new_mtu < 0)
-+ return -EINVAL;
-+
-+ if (!netif_device_present(dev))
-+ return -ENODEV;
-+
-+ err = 0;
-+ if (dev->change_mtu)
-+ err = dev->change_mtu(dev, new_mtu);
-+ else
-+ dev->mtu = new_mtu;
-+ if (!err && dev->flags & IFF_UP)
-+ notifier_call_chain(&netdev_chain,
-+ NETDEV_CHANGEMTU, dev);
-+ return err;
-+}
-+
-+int dev_set_mac_address(struct net_device *dev, struct sockaddr *sa)
-+{
-+ int err;
-+
-+ if (!dev->set_mac_address)
-+ return -EOPNOTSUPP;
-+ if (sa->sa_family != dev->type)
-+ return -EINVAL;
-+ if (!netif_device_present(dev))
-+ return -ENODEV;
-+ err = dev->set_mac_address(dev, sa);
-+ if (!err)
-+ notifier_call_chain(&netdev_chain, NETDEV_CHANGEADDR, dev);
-+ return err;
-+}
-+
-+/*
-+ * Perform the SIOCxIFxxx calls.
-+ */
-+static int dev_ifsioc(struct ifreq *ifr, unsigned int cmd)
-+{
-+ int err;
-+ struct net_device *dev = __dev_get_by_name(ifr->ifr_name);
-+
-+ if (!dev)
-+ return -ENODEV;
-+
-+ switch (cmd) {
-+ case SIOCGIFFLAGS: /* Get interface flags */
-+ ifr->ifr_flags = dev_get_flags(dev);
-+ return 0;
-+
-+ case SIOCSIFFLAGS: /* Set interface flags */
-+ return dev_change_flags(dev, ifr->ifr_flags);
-+
-+ case SIOCGIFMETRIC: /* Get the metric on the interface
-+ (currently unused) */
-+ ifr->ifr_metric = 0;
-+ return 0;
-+
-+ case SIOCSIFMETRIC: /* Set the metric on the interface
-+ (currently unused) */
-+ return -EOPNOTSUPP;
-+
-+ case SIOCGIFMTU: /* Get the MTU of a device */
-+ ifr->ifr_mtu = dev->mtu;
-+ return 0;
-+
-+ case SIOCSIFMTU: /* Set the MTU of a device */
-+ return dev_set_mtu(dev, ifr->ifr_mtu);
-+
-+ case SIOCGIFHWADDR:
-+ if (!dev->addr_len)
-+ memset(ifr->ifr_hwaddr.sa_data, 0, sizeof ifr->ifr_hwaddr.sa_data);
-+ else
-+ memcpy(ifr->ifr_hwaddr.sa_data, dev->dev_addr,
-+ min(sizeof ifr->ifr_hwaddr.sa_data, (size_t) dev->addr_len));
-+ ifr->ifr_hwaddr.sa_family = dev->type;
-+ return 0;
-+
-+ case SIOCSIFHWADDR:
-+ return dev_set_mac_address(dev, &ifr->ifr_hwaddr);
-+
-+ case SIOCSIFHWBROADCAST:
-+ if (ifr->ifr_hwaddr.sa_family != dev->type)
-+ return -EINVAL;
-+ memcpy(dev->broadcast, ifr->ifr_hwaddr.sa_data,
-+ min(sizeof ifr->ifr_hwaddr.sa_data, (size_t) dev->addr_len));
-+ notifier_call_chain(&netdev_chain,
-+ NETDEV_CHANGEADDR, dev);
-+ return 0;
-+
-+ case SIOCGIFMAP:
-+ ifr->ifr_map.mem_start = dev->mem_start;
-+ ifr->ifr_map.mem_end = dev->mem_end;
-+ ifr->ifr_map.base_addr = dev->base_addr;
-+ ifr->ifr_map.irq = dev->irq;
-+ ifr->ifr_map.dma = dev->dma;
-+ ifr->ifr_map.port = dev->if_port;
-+ return 0;
-+
-+ case SIOCSIFMAP:
-+ if (dev->set_config) {
-+ if (!netif_device_present(dev))
-+ return -ENODEV;
-+ return dev->set_config(dev, &ifr->ifr_map);
-+ }
-+ return -EOPNOTSUPP;
-+
-+ case SIOCADDMULTI:
-+ if (!dev->set_multicast_list ||
-+ ifr->ifr_hwaddr.sa_family != AF_UNSPEC)
-+ return -EINVAL;
-+ if (!netif_device_present(dev))
-+ return -ENODEV;
-+ return dev_mc_add(dev, ifr->ifr_hwaddr.sa_data,
-+ dev->addr_len, 1);
-+
-+ case SIOCDELMULTI:
-+ if (!dev->set_multicast_list ||
-+ ifr->ifr_hwaddr.sa_family != AF_UNSPEC)
-+ return -EINVAL;
-+ if (!netif_device_present(dev))
-+ return -ENODEV;
-+ return dev_mc_delete(dev, ifr->ifr_hwaddr.sa_data,
-+ dev->addr_len, 1);
-+
-+ case SIOCGIFINDEX:
-+ ifr->ifr_ifindex = dev->ifindex;
-+ return 0;
-+
-+ case SIOCGIFTXQLEN:
-+ ifr->ifr_qlen = dev->tx_queue_len;
-+ return 0;
-+
-+ case SIOCSIFTXQLEN:
-+ if (ifr->ifr_qlen < 0)
-+ return -EINVAL;
-+ dev->tx_queue_len = ifr->ifr_qlen;
-+ return 0;
-+
-+ case SIOCSIFNAME:
-+ ifr->ifr_newname[IFNAMSIZ-1] = '\0';
-+ return dev_change_name(dev, ifr->ifr_newname);
-+
-+ /*
-+ * Unknown or private ioctl
-+ */
-+
-+ default:
-+ if ((cmd >= SIOCDEVPRIVATE &&
-+ cmd <= SIOCDEVPRIVATE + 15) ||
-+ cmd == SIOCBONDENSLAVE ||
-+ cmd == SIOCBONDRELEASE ||
-+ cmd == SIOCBONDSETHWADDR ||
-+ cmd == SIOCBONDSLAVEINFOQUERY ||
-+ cmd == SIOCBONDINFOQUERY ||
-+ cmd == SIOCBONDCHANGEACTIVE ||
-+ cmd == SIOCGMIIPHY ||
-+ cmd == SIOCGMIIREG ||
-+ cmd == SIOCSMIIREG ||
-+ cmd == SIOCBRADDIF ||
-+ cmd == SIOCBRDELIF ||
-+ cmd == SIOCWANDEV) {
-+ err = -EOPNOTSUPP;
-+ if (dev->do_ioctl) {
-+ if (netif_device_present(dev))
-+ err = dev->do_ioctl(dev, ifr,
-+ cmd);
-+ else
-+ err = -ENODEV;
-+ }
-+ } else
-+ err = -EINVAL;
-+
-+ }
-+ return err;
-+}
-+
-+/*
-+ * This function handles all "interface"-type I/O control requests. The actual
-+ * 'doing' part of this is dev_ifsioc above.
-+ */
-+
-+/**
-+ * dev_ioctl - network device ioctl
-+ * @cmd: command to issue
-+ * @arg: pointer to a struct ifreq in user space
-+ *
-+ * Issue ioctl functions to devices. This is normally called by the
-+ * user space syscall interfaces but can sometimes be useful for
-+ * other purposes. The return value is the return from the syscall if
-+ * positive or a negative errno code on error.
-+ */
-+
-+int dev_ioctl(unsigned int cmd, void __user *arg)
-+{
-+ struct ifreq ifr;
-+ int ret;
-+ char *colon;
-+
-+ /* One special case: SIOCGIFCONF takes ifconf argument
-+ and requires shared lock, because it sleeps writing
-+ to user space.
-+ */
-+
-+ if (cmd == SIOCGIFCONF) {
-+ rtnl_shlock();
-+ ret = dev_ifconf((char __user *) arg);
-+ rtnl_shunlock();
-+ return ret;
-+ }
-+ if (cmd == SIOCGIFNAME)
-+ return dev_ifname((struct ifreq __user *)arg);
-+
-+ if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
-+ return -EFAULT;
-+
-+ ifr.ifr_name[IFNAMSIZ-1] = 0;
-+
-+ colon = strchr(ifr.ifr_name, ':');
-+ if (colon)
-+ *colon = 0;
-+
-+ /*
-+ * See which interface the caller is talking about.
-+ */
-+
-+ switch (cmd) {
-+ /*
-+ * These ioctl calls:
-+ * - can be done by all.
-+ * - atomic and do not require locking.
-+ * - return a value
-+ */
-+ case SIOCGIFFLAGS:
-+ case SIOCGIFMETRIC:
-+ case SIOCGIFMTU:
-+ case SIOCGIFHWADDR:
-+ case SIOCGIFSLAVE:
-+ case SIOCGIFMAP:
-+ case SIOCGIFINDEX:
-+ case SIOCGIFTXQLEN:
-+ dev_load(ifr.ifr_name);
-+ read_lock(&dev_base_lock);
-+ ret = dev_ifsioc(&ifr, cmd);
-+ read_unlock(&dev_base_lock);
-+ if (!ret) {
-+ if (colon)
-+ *colon = ':';
-+ if (copy_to_user(arg, &ifr,
-+ sizeof(struct ifreq)))
-+ ret = -EFAULT;
-+ }
-+ return ret;
-+
-+ case SIOCETHTOOL:
-+ dev_load(ifr.ifr_name);
-+ rtnl_lock();
-+ ret = dev_ethtool(&ifr);
-+ rtnl_unlock();
-+ if (!ret) {
-+ if (colon)
-+ *colon = ':';
-+ if (copy_to_user(arg, &ifr,
-+ sizeof(struct ifreq)))
-+ ret = -EFAULT;
-+ }
-+ return ret;
-+
-+ /*
-+ * These ioctl calls:
-+ * - require superuser power.
-+ * - require strict serialization.
-+ * - return a value
-+ */
-+ case SIOCGMIIPHY:
-+ case SIOCGMIIREG:
-+ case SIOCSIFNAME:
-+ if (!capable(CAP_NET_ADMIN))
-+ return -EPERM;
-+ dev_load(ifr.ifr_name);
-+ rtnl_lock();
-+ ret = dev_ifsioc(&ifr, cmd);
-+ rtnl_unlock();
-+ if (!ret) {
-+ if (colon)
-+ *colon = ':';
-+ if (copy_to_user(arg, &ifr,
-+ sizeof(struct ifreq)))
-+ ret = -EFAULT;
-+ }
-+ return ret;
-+
-+ /*
-+ * These ioctl calls:
-+ * - require superuser power.
-+ * - require strict serialization.
-+ * - do not return a value
-+ */
-+ case SIOCSIFFLAGS:
-+ case SIOCSIFMETRIC:
-+ case SIOCSIFMTU:
-+ case SIOCSIFMAP:
-+ case SIOCSIFHWADDR:
-+ case SIOCSIFSLAVE:
-+ case SIOCADDMULTI:
-+ case SIOCDELMULTI:
-+ case SIOCSIFHWBROADCAST:
-+ case SIOCSIFTXQLEN:
-+ case SIOCSMIIREG:
-+ case SIOCBONDENSLAVE:
-+ case SIOCBONDRELEASE:
-+ case SIOCBONDSETHWADDR:
-+ case SIOCBONDSLAVEINFOQUERY:
-+ case SIOCBONDINFOQUERY:
-+ case SIOCBONDCHANGEACTIVE:
-+ case SIOCBRADDIF:
-+ case SIOCBRDELIF:
-+ if (!capable(CAP_NET_ADMIN))
-+ return -EPERM;
-+ dev_load(ifr.ifr_name);
-+ rtnl_lock();
-+ ret = dev_ifsioc(&ifr, cmd);
-+ rtnl_unlock();
-+ return ret;
-+
-+ case SIOCGIFMEM:
-+ /* Get the per device memory space. We can add this but
-+ * currently do not support it */
-+ case SIOCSIFMEM:
-+ /* Set the per device memory buffer space.
-+ * Not applicable in our case */
-+ case SIOCSIFLINK:
-+ return -EINVAL;
-+
-+ /*
-+ * Unknown or private ioctl.
-+ */
-+ default:
-+ if (cmd == SIOCWANDEV ||
-+ (cmd >= SIOCDEVPRIVATE &&
-+ cmd <= SIOCDEVPRIVATE + 15)) {
-+ dev_load(ifr.ifr_name);
-+ rtnl_lock();
-+ ret = dev_ifsioc(&ifr, cmd);
-+ rtnl_unlock();
-+ if (!ret && copy_to_user(arg, &ifr,
-+ sizeof(struct ifreq)))
-+ ret = -EFAULT;
-+ return ret;
-+ }
-+#ifdef WIRELESS_EXT
-+ /* Take care of Wireless Extensions */
-+ if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) {
-+ /* If command is `set a parameter', or
-+ * `get the encoding parameters', check if
-+ * the user has the right to do it */
-+ if (IW_IS_SET(cmd) || cmd == SIOCGIWENCODE) {
-+ if (!capable(CAP_NET_ADMIN))
-+ return -EPERM;
-+ }
-+ dev_load(ifr.ifr_name);
-+ rtnl_lock();
-+ /* Follow me in net/core/wireless.c */
-+ ret = wireless_process_ioctl(&ifr, cmd);
-+ rtnl_unlock();
-+ if (IW_IS_GET(cmd) &&
-+ copy_to_user(arg, &ifr,
-+ sizeof(struct ifreq)))
-+ ret = -EFAULT;
-+ return ret;
-+ }
-+#endif /* WIRELESS_EXT */
-+ return -EINVAL;
-+ }
-+}
-+
-+
-+/**
-+ * dev_new_index - allocate an ifindex
-+ *
-+ * Returns a suitable unique value for a new device interface
-+ * number. The caller must hold the rtnl semaphore or the
-+ * dev_base_lock to be sure it remains unique.
-+ */
-+static int dev_new_index(void)
-+{
-+ static int ifindex;
-+ for (;;) {
-+ if (++ifindex <= 0)
-+ ifindex = 1;
-+ if (!__dev_get_by_index(ifindex))
-+ return ifindex;
-+ }
-+}
-+
-+static int dev_boot_phase = 1;
-+
-+/* Delayed registration/unregisteration */
-+static DEFINE_SPINLOCK(net_todo_list_lock);
-+static struct list_head net_todo_list = LIST_HEAD_INIT(net_todo_list);
-+
-+static inline void net_set_todo(struct net_device *dev)
-+{
-+ spin_lock(&net_todo_list_lock);
-+ list_add_tail(&dev->todo_list, &net_todo_list);
-+ spin_unlock(&net_todo_list_lock);
-+}
-+
-+/**
-+ * register_netdevice - register a network device
-+ * @dev: device to register
-+ *
-+ * Take a completed network device structure and add it to the kernel
-+ * interfaces. A %NETDEV_REGISTER message is sent to the netdev notifier
-+ * chain. 0 is returned on success. A negative errno code is returned
-+ * on a failure to set up the device, or if the name is a duplicate.
-+ *
-+ * Callers must hold the rtnl semaphore. You may want
-+ * register_netdev() instead of this.
-+ *
-+ * BUGS:
-+ * The locking appears insufficient to guarantee two parallel registers
-+ * will not get the same name.
-+ */
-+
-+int register_netdevice(struct net_device *dev)
-+{
-+ struct hlist_head *head;
-+ struct hlist_node *p;
-+ int ret;
-+
-+ BUG_ON(dev_boot_phase);
-+ ASSERT_RTNL();
-+
-+ /* When net_device's are persistent, this will be fatal. */
-+ BUG_ON(dev->reg_state != NETREG_UNINITIALIZED);
-+
-+ spin_lock_init(&dev->queue_lock);
-+ spin_lock_init(&dev->xmit_lock);
-+ dev->xmit_lock_owner = -1;
-+#ifdef CONFIG_NET_CLS_ACT
-+ spin_lock_init(&dev->ingress_lock);
-+#endif
-+
-+ ret = alloc_divert_blk(dev);
-+ if (ret)
-+ goto out;
-+
-+ dev->iflink = -1;
-+
-+ /* Init, if this function is available */
-+ if (dev->init) {
-+ ret = dev->init(dev);
-+ if (ret) {
-+ if (ret > 0)
-+ ret = -EIO;
-+ goto out_err;
-+ }
-+ }
-+
-+ if (!dev_valid_name(dev->name)) {
-+ ret = -EINVAL;
-+ goto out_err;
-+ }
-+
-+ dev->ifindex = dev_new_index();
-+ if (dev->iflink == -1)
-+ dev->iflink = dev->ifindex;
-+
-+ /* Check for existence of name */
-+ head = dev_name_hash(dev->name);
-+ hlist_for_each(p, head) {
-+ struct net_device *d
-+ = hlist_entry(p, struct net_device, name_hlist);
-+ if (!strncmp(d->name, dev->name, IFNAMSIZ)) {
-+ ret = -EEXIST;
-+ goto out_err;
-+ }
-+ }
-+
-+ /* Fix illegal SG+CSUM combinations. */
-+ if ((dev->features & NETIF_F_SG) &&
-+ !(dev->features & (NETIF_F_IP_CSUM |
-+ NETIF_F_NO_CSUM |
-+ NETIF_F_HW_CSUM))) {
-+ printk("%s: Dropping NETIF_F_SG since no checksum feature.\n",
-+ dev->name);
-+ dev->features &= ~NETIF_F_SG;
-+ }
-+
-+ /* TSO requires that SG is present as well. */
-+ if ((dev->features & NETIF_F_TSO) &&
-+ !(dev->features & NETIF_F_SG)) {
-+ printk("%s: Dropping NETIF_F_TSO since no SG feature.\n",
-+ dev->name);
-+ dev->features &= ~NETIF_F_TSO;
-+ }
-+
-+ /*
-+ * nil rebuild_header routine,
-+ * that should be never called and used as just bug trap.
-+ */
-+
-+ if (!dev->rebuild_header)
-+ dev->rebuild_header = default_rebuild_header;
-+
-+ /*
-+ * Default initial state at registry is that the
-+ * device is present.
-+ */
-+
-+ set_bit(__LINK_STATE_PRESENT, &dev->state);
-+
-+ dev->next = NULL;
-+ dev_init_scheduler(dev);
-+ write_lock_bh(&dev_base_lock);
-+ *dev_tail = dev;
-+ dev_tail = &dev->next;
-+ hlist_add_head(&dev->name_hlist, head);
-+ hlist_add_head(&dev->index_hlist, dev_index_hash(dev->ifindex));
-+ dev_hold(dev);
-+ dev->reg_state = NETREG_REGISTERING;
-+ write_unlock_bh(&dev_base_lock);
-+
-+ /* Notify protocols, that a new device appeared. */
-+ notifier_call_chain(&netdev_chain, NETDEV_REGISTER, dev);
-+
-+ /* Finish registration after unlock */
-+ net_set_todo(dev);
-+ ret = 0;
-+
-+out:
-+ return ret;
-+out_err:
-+ free_divert_blk(dev);
-+ goto out;
-+}
-+
-+/**
-+ * register_netdev - register a network device
-+ * @dev: device to register
-+ *
-+ * Take a completed network device structure and add it to the kernel
-+ * interfaces. A %NETDEV_REGISTER message is sent to the netdev notifier
-+ * chain. 0 is returned on success. A negative errno code is returned
-+ * on a failure to set up the device, or if the name is a duplicate.
-+ *
-+ * This is a wrapper around register_netdev that takes the rtnl semaphore
-+ * and expands the device name if you passed a format string to
-+ * alloc_netdev.
-+ */
-+int register_netdev(struct net_device *dev)
-+{
-+ int err;
-+
-+ rtnl_lock();
-+
-+ /*
-+ * If the name is a format string the caller wants us to do a
-+ * name allocation.
-+ */
-+ if (strchr(dev->name, '%')) {
-+ err = dev_alloc_name(dev, dev->name);
-+ if (err < 0)
-+ goto out;
-+ }
-+
-+ /*
-+ * Back compatibility hook. Kill this one in 2.5
-+ */
-+ if (dev->name[0] == 0 || dev->name[0] == ' ') {
-+ err = dev_alloc_name(dev, "eth%d");
-+ if (err < 0)
-+ goto out;
-+ }
-+
-+ err = register_netdevice(dev);
-+out:
-+ rtnl_unlock();
-+ return err;
-+}
-+EXPORT_SYMBOL(register_netdev);
-+
-+/*
-+ * netdev_wait_allrefs - wait until all references are gone.
-+ *
-+ * This is called when unregistering network devices.
-+ *
-+ * Any protocol or device that holds a reference should register
-+ * for netdevice notification, and cleanup and put back the
-+ * reference if they receive an UNREGISTER event.
-+ * We can get stuck here if buggy protocols don't correctly
-+ * call dev_put.
-+ */
-+static void netdev_wait_allrefs(struct net_device *dev)
-+{
-+ unsigned long rebroadcast_time, warning_time;
-+
-+ rebroadcast_time = warning_time = jiffies;
-+ while (atomic_read(&dev->refcnt) != 0) {
-+ if (time_after(jiffies, rebroadcast_time + 1 * HZ)) {
-+ rtnl_shlock();
-+
-+ /* Rebroadcast unregister notification */
-+ notifier_call_chain(&netdev_chain,
-+ NETDEV_UNREGISTER, dev);
-+
-+ if (test_bit(__LINK_STATE_LINKWATCH_PENDING,
-+ &dev->state)) {
-+ /* We must not have linkwatch events
-+ * pending on unregister. If this
-+ * happens, we simply run the queue
-+ * unscheduled, resulting in a noop
-+ * for this device.
-+ */
-+ linkwatch_run_queue();
-+ }
-+
-+ rtnl_shunlock();
-+
-+ rebroadcast_time = jiffies;
-+ }
-+
-+ msleep(250);
-+
-+ if (time_after(jiffies, warning_time + 10 * HZ)) {
-+ printk(KERN_EMERG "unregister_netdevice: "
-+ "waiting for %s to become free. Usage "
-+ "count = %d\n",
-+ dev->name, atomic_read(&dev->refcnt));
-+ warning_time = jiffies;
-+ }
-+ }
-+}
-+
-+/* The sequence is:
-+ *
-+ * rtnl_lock();
-+ * ...
-+ * register_netdevice(x1);
-+ * register_netdevice(x2);
-+ * ...
-+ * unregister_netdevice(y1);
-+ * unregister_netdevice(y2);
-+ * ...
-+ * rtnl_unlock();
-+ * free_netdev(y1);
-+ * free_netdev(y2);
-+ *
-+ * We are invoked by rtnl_unlock() after it drops the semaphore.
-+ * This allows us to deal with problems:
-+ * 1) We can create/delete sysfs objects which invoke hotplug
-+ * without deadlocking with linkwatch via keventd.
-+ * 2) Since we run with the RTNL semaphore not held, we can sleep
-+ * safely in order to wait for the netdev refcnt to drop to zero.
-+ */
-+static DECLARE_MUTEX(net_todo_run_mutex);
-+void netdev_run_todo(void)
-+{
-+ struct list_head list = LIST_HEAD_INIT(list);
-+ int err;
-+
-+
-+ /* Need to guard against multiple cpu's getting out of order. */
-+ down(&net_todo_run_mutex);
-+
-+ /* Not safe to do outside the semaphore. We must not return
-+ * until all unregister events invoked by the local processor
-+ * have been completed (either by this todo run, or one on
-+ * another cpu).
-+ */
-+ if (list_empty(&net_todo_list))
-+ goto out;
-+
-+ /* Snapshot list, allow later requests */
-+ spin_lock(&net_todo_list_lock);
-+ list_splice_init(&net_todo_list, &list);
-+ spin_unlock(&net_todo_list_lock);
-+
-+ while (!list_empty(&list)) {
-+ struct net_device *dev
-+ = list_entry(list.next, struct net_device, todo_list);
-+ list_del(&dev->todo_list);
-+
-+ switch(dev->reg_state) {
-+ case NETREG_REGISTERING:
-+ err = netdev_register_sysfs(dev);
-+ if (err)
-+ printk(KERN_ERR "%s: failed sysfs registration (%d)\n",
-+ dev->name, err);
-+ dev->reg_state = NETREG_REGISTERED;
-+ break;
-+
-+ case NETREG_UNREGISTERING:
-+ netdev_unregister_sysfs(dev);
-+ dev->reg_state = NETREG_UNREGISTERED;
-+
-+ netdev_wait_allrefs(dev);
-+
-+ /* paranoia */
-+ BUG_ON(atomic_read(&dev->refcnt));
-+ BUG_TRAP(!dev->ip_ptr);
-+ BUG_TRAP(!dev->ip6_ptr);
-+ BUG_TRAP(!dev->dn_ptr);
-+
-+
-+ /* It must be the very last action,
-+ * after this 'dev' may point to freed up memory.
-+ */
-+ if (dev->destructor)
-+ dev->destructor(dev);
-+ break;
-+
-+ default:
-+ printk(KERN_ERR "network todo '%s' but state %d\n",
-+ dev->name, dev->reg_state);
-+ break;
-+ }
-+ }
-+
-+out:
-+ up(&net_todo_run_mutex);
-+}
-+
-+/**
-+ * alloc_netdev - allocate network device
-+ * @sizeof_priv: size of private data to allocate space for
-+ * @name: device name format string
-+ * @setup: callback to initialize device
-+ *
-+ * Allocates a struct net_device with private data area for driver use
-+ * and performs basic initialization.
-+ */
-+struct net_device *alloc_netdev(int sizeof_priv, const char *name,
-+ void (*setup)(struct net_device *))
-+{
-+ void *p;
-+ struct net_device *dev;
-+ int alloc_size;
-+
-+ /* ensure 32-byte alignment of both the device and private area */
-+ alloc_size = (sizeof(*dev) + NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST;
-+ alloc_size += sizeof_priv + NETDEV_ALIGN_CONST;
-+
-+ p = kmalloc(alloc_size, GFP_KERNEL);
-+ if (!p) {
-+ printk(KERN_ERR "alloc_dev: Unable to allocate device.\n");
-+ return NULL;
-+ }
-+ memset(p, 0, alloc_size);
-+
-+ dev = (struct net_device *)
-+ (((long)p + NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST);
-+ dev->padded = (char *)dev - (char *)p;
-+
-+ if (sizeof_priv)
-+ dev->priv = netdev_priv(dev);
-+
-+ setup(dev);
-+ strcpy(dev->name, name);
-+ return dev;
-+}
-+EXPORT_SYMBOL(alloc_netdev);
-+
-+/**
-+ * free_netdev - free network device
-+ * @dev: device
-+ *
-+ * This function does the last stage of destroying an allocated device
-+ * interface. The reference to the device object is released.
-+ * If this is the last reference then it will be freed.
-+ */
-+void free_netdev(struct net_device *dev)
-+{
-+#ifdef CONFIG_SYSFS
-+ /* Compatiablity with error handling in drivers */
-+ if (dev->reg_state == NETREG_UNINITIALIZED) {
-+ kfree((char *)dev - dev->padded);
-+ return;
-+ }
-+
-+ BUG_ON(dev->reg_state != NETREG_UNREGISTERED);
-+ dev->reg_state = NETREG_RELEASED;
-+
-+ /* will free via class release */
-+ class_device_put(&dev->class_dev);
-+#else
-+ kfree((char *)dev - dev->padded);
-+#endif
-+}
-+
-+/* Synchronize with packet receive processing. */
-+void synchronize_net(void)
-+{
-+ might_sleep();
-+ synchronize_rcu();
-+}
-+
-+/**
-+ * unregister_netdevice - remove device from the kernel
-+ * @dev: device
-+ *
-+ * This function shuts down a device interface and removes it
-+ * from the kernel tables. On success 0 is returned, on a failure
-+ * a negative errno code is returned.
-+ *
-+ * Callers must hold the rtnl semaphore. You may want
-+ * unregister_netdev() instead of this.
-+ */
-+
-+int unregister_netdevice(struct net_device *dev)
-+{
-+ struct net_device *d, **dp;
-+
-+ BUG_ON(dev_boot_phase);
-+ ASSERT_RTNL();
-+
-+ /* Some devices call without registering for initialization unwind. */
-+ if (dev->reg_state == NETREG_UNINITIALIZED) {
-+ printk(KERN_DEBUG "unregister_netdevice: device %s/%p never "
-+ "was registered\n", dev->name, dev);
-+ return -ENODEV;
-+ }
-+
-+ BUG_ON(dev->reg_state != NETREG_REGISTERED);
-+
-+ /* If device is running, close it first. */
-+ if (dev->flags & IFF_UP)
-+ dev_close(dev);
-+
-+ /* And unlink it from device chain. */
-+ for (dp = &dev_base; (d = *dp) != NULL; dp = &d->next) {
-+ if (d == dev) {
-+ write_lock_bh(&dev_base_lock);
-+ hlist_del(&dev->name_hlist);
-+ hlist_del(&dev->index_hlist);
-+ if (dev_tail == &dev->next)
-+ dev_tail = dp;
-+ *dp = d->next;
-+ write_unlock_bh(&dev_base_lock);
-+ break;
-+ }
-+ }
-+ if (!d) {
-+ printk(KERN_ERR "unregister net_device: '%s' not found\n",
-+ dev->name);
-+ return -ENODEV;
-+ }
-+
-+ dev->reg_state = NETREG_UNREGISTERING;
-+
-+ synchronize_net();
-+
-+ /* Shutdown queueing discipline. */
-+ dev_shutdown(dev);
-+
-+
-+ /* Notify protocols, that we are about to destroy
-+ this device. They should clean all the things.
-+ */
-+ notifier_call_chain(&netdev_chain, NETDEV_UNREGISTER, dev);
-+
-+ /*
-+ * Flush the multicast chain
-+ */
-+ dev_mc_discard(dev);
-+
-+ if (dev->uninit)
-+ dev->uninit(dev);
-+
-+ /* Notifier chain MUST detach us from master device. */
-+ BUG_TRAP(!dev->master);
-+
-+ free_divert_blk(dev);
-+
-+ /* Finish processing unregister after unlock */
-+ net_set_todo(dev);
-+
-+ synchronize_net();
-+
-+ dev_put(dev);
-+ return 0;
-+}
-+
-+/**
-+ * unregister_netdev - remove device from the kernel
-+ * @dev: device
-+ *
-+ * This function shuts down a device interface and removes it
-+ * from the kernel tables. On success 0 is returned, on a failure
-+ * a negative errno code is returned.
-+ *
-+ * This is just a wrapper for unregister_netdevice that takes
-+ * the rtnl semaphore. In general you want to use this and not
-+ * unregister_netdevice.
-+ */
-+void unregister_netdev(struct net_device *dev)
-+{
-+ rtnl_lock();
-+ unregister_netdevice(dev);
-+ rtnl_unlock();
-+}
-+
-+EXPORT_SYMBOL(unregister_netdev);
-+
-+#ifdef CONFIG_HOTPLUG_CPU
-+static int dev_cpu_callback(struct notifier_block *nfb,
-+ unsigned long action,
-+ void *ocpu)
-+{
-+ struct sk_buff **list_skb;
-+ struct net_device **list_net;
-+ struct sk_buff *skb;
-+ unsigned int cpu, oldcpu = (unsigned long)ocpu;
-+ struct softnet_data *sd, *oldsd;
-+
-+ if (action != CPU_DEAD)
-+ return NOTIFY_OK;
-+
-+ local_irq_disable();
-+ cpu = smp_processor_id();
-+ sd = &per_cpu(softnet_data, cpu);
-+ oldsd = &per_cpu(softnet_data, oldcpu);
-+
-+ /* Find end of our completion_queue. */
-+ list_skb = &sd->completion_queue;
-+ while (*list_skb)
-+ list_skb = &(*list_skb)->next;
-+ /* Append completion queue from offline CPU. */
-+ *list_skb = oldsd->completion_queue;
-+ oldsd->completion_queue = NULL;
-+
-+ /* Find end of our output_queue. */
-+ list_net = &sd->output_queue;
-+ while (*list_net)
-+ list_net = &(*list_net)->next_sched;
-+ /* Append output queue from offline CPU. */
-+ *list_net = oldsd->output_queue;
-+ oldsd->output_queue = NULL;
-+
-+ raise_softirq_irqoff(NET_TX_SOFTIRQ);
-+ local_irq_enable();
-+
-+ /* Process offline CPU's input_pkt_queue */
-+ while ((skb = __skb_dequeue(&oldsd->input_pkt_queue)))
-+ netif_rx(skb);
-+
-+ return NOTIFY_OK;
-+}
-+#endif /* CONFIG_HOTPLUG_CPU */
-+
-+
-+/*
-+ * Initialize the DEV module. At boot time this walks the device list and
-+ * unhooks any devices that fail to initialise (normally hardware not
-+ * present) and leaves us with a valid list of present and active devices.
-+ *
-+ */
-+
-+/*
-+ * This is called single threaded during boot, so no need
-+ * to take the rtnl semaphore.
-+ */
-+static int __init net_dev_init(void)
-+{
-+ int i, rc = -ENOMEM;
-+
-+ BUG_ON(!dev_boot_phase);
-+
-+ net_random_init();
-+
-+ if (dev_proc_init())
-+ goto out;
-+
-+ if (netdev_sysfs_init())
-+ goto out;
-+
-+ INIT_LIST_HEAD(&ptype_all);
-+ for (i = 0; i < 16; i++)
-+ INIT_LIST_HEAD(&ptype_base[i]);
-+
-+ for (i = 0; i < ARRAY_SIZE(dev_name_head); i++)
-+ INIT_HLIST_HEAD(&dev_name_head[i]);
-+
-+ for (i = 0; i < ARRAY_SIZE(dev_index_head); i++)
-+ INIT_HLIST_HEAD(&dev_index_head[i]);
-+
-+ /*
-+ * Initialise the packet receive queues.
-+ */
-+
-+ for (i = 0; i < NR_CPUS; i++) {
-+ struct softnet_data *queue;
-+
-+ queue = &per_cpu(softnet_data, i);
-+ skb_queue_head_init(&queue->input_pkt_queue);
-+ queue->throttle = 0;
-+ queue->cng_level = 0;
-+ queue->avg_blog = 10; /* arbitrary non-zero */
-+ queue->completion_queue = NULL;
-+ INIT_LIST_HEAD(&queue->poll_list);
-+ set_bit(__LINK_STATE_START, &queue->backlog_dev.state);
-+ queue->backlog_dev.weight = weight_p;
-+ queue->backlog_dev.poll = process_backlog;
-+ atomic_set(&queue->backlog_dev.refcnt, 1);
-+ }
-+
-+#ifdef OFFLINE_SAMPLE
-+ samp_timer.expires = jiffies + (10 * HZ);
-+ add_timer(&samp_timer);
-+#endif
-+
-+ dev_boot_phase = 0;
-+
-+ open_softirq(NET_TX_SOFTIRQ, net_tx_action, NULL);
-+ open_softirq(NET_RX_SOFTIRQ, net_rx_action, NULL);
-+
-+ hotcpu_notifier(dev_cpu_callback, 0);
-+ dst_init();
-+ dev_mcast_init();
-+ rc = 0;
-+out:
-+ return rc;
-+}
-+
-+subsys_initcall(net_dev_init);
-+
-+EXPORT_SYMBOL(__dev_get_by_index);
-+EXPORT_SYMBOL(__dev_get_by_name);
-+EXPORT_SYMBOL(__dev_remove_pack);
-+EXPORT_SYMBOL(__skb_linearize);
-+EXPORT_SYMBOL(dev_add_pack);
-+EXPORT_SYMBOL(dev_alloc_name);
-+EXPORT_SYMBOL(dev_close);
-+EXPORT_SYMBOL(dev_get_by_flags);
-+EXPORT_SYMBOL(dev_get_by_index);
-+EXPORT_SYMBOL(dev_get_by_name);
-+EXPORT_SYMBOL(dev_ioctl);
-+EXPORT_SYMBOL(dev_open);
-+EXPORT_SYMBOL(dev_queue_xmit);
-+EXPORT_SYMBOL(dev_remove_pack);
-+EXPORT_SYMBOL(dev_set_allmulti);
-+EXPORT_SYMBOL(dev_set_promiscuity);
-+EXPORT_SYMBOL(dev_change_flags);
-+EXPORT_SYMBOL(dev_set_mtu);
-+EXPORT_SYMBOL(dev_set_mac_address);
-+EXPORT_SYMBOL(free_netdev);
-+EXPORT_SYMBOL(netdev_boot_setup_check);
-+EXPORT_SYMBOL(netdev_set_master);
-+EXPORT_SYMBOL(netdev_state_change);
-+EXPORT_SYMBOL(netif_receive_skb);
-+EXPORT_SYMBOL(netif_rx);
-+EXPORT_SYMBOL(register_gifconf);
-+EXPORT_SYMBOL(register_netdevice);
-+EXPORT_SYMBOL(register_netdevice_notifier);
-+EXPORT_SYMBOL(skb_checksum_help);
-+EXPORT_SYMBOL(synchronize_net);
-+EXPORT_SYMBOL(unregister_netdevice);
-+EXPORT_SYMBOL(unregister_netdevice_notifier);
-+EXPORT_SYMBOL(net_enable_timestamp);
-+EXPORT_SYMBOL(net_disable_timestamp);
-+EXPORT_SYMBOL(dev_get_flags);
-+
-+#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
-+EXPORT_SYMBOL(br_handle_frame_hook);
-+EXPORT_SYMBOL(br_fdb_get_hook);
-+EXPORT_SYMBOL(br_fdb_put_hook);
-+#endif
-+
-+#ifdef CONFIG_KMOD
-+EXPORT_SYMBOL(dev_load);
-+#endif
-+
-+EXPORT_PER_CPU_SYMBOL(softnet_data);
-diff --unified --recursive --new-file linux-2.6.12.5/net/ring/Kconfig linux-2.6.12.5-1-686-smp-ring3/net/ring/Kconfig
---- linux-2.6.12.5/net/ring/Kconfig 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.12.5-1-686-smp-ring3/net/ring/Kconfig 2005-10-22 23:50:45.539482000 +0200
-@@ -0,0 +1,14 @@
-+config RING
-+ tristate "PF_RING sockets (EXPERIMENTAL)"
-+ depends on EXPERIMENTAL
-+ ---help---
-+ PF_RING socket family, optimized for packet capture.
-+ If a PF_RING socket is bound to an adapter (via the bind() system
-+ call), such adapter will be used in read-only mode until the socket
-+ is destroyed. Whenever an incoming packet is received from the adapter
-+ it will not passed to upper layers, but instead it is copied to a ring
-+ buffer, which in turn is exported to user space applications via mmap.
-+ Please refer to http://luca.ntop.org/Ring.pdf for more.
-+
-+ Say N unless you know what you are doing.
-+
-diff --unified --recursive --new-file linux-2.6.12.5/net/ring/Makefile linux-2.6.12.5-1-686-smp-ring3/net/ring/Makefile
---- linux-2.6.12.5/net/ring/Makefile 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.12.5-1-686-smp-ring3/net/ring/Makefile 2005-10-22 23:50:45.051451500 +0200
-@@ -0,0 +1,7 @@
-+#
-+# Makefile for the ring driver.
-+#
-+
-+obj-m += ring.o
-+
-+ring-objs := ring_packet.o
-diff --unified --recursive --new-file linux-2.6.12.5/net/ring/ring_packet.c linux-2.6.12.5-1-686-smp-ring3/net/ring/ring_packet.c
---- linux-2.6.12.5/net/ring/ring_packet.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.12.5-1-686-smp-ring3/net/ring/ring_packet.c 2005-10-22 23:50:45.159458250 +0200
-@@ -0,0 +1,1592 @@
-+/*
-+ *
-+ * (C) 2004-05 - Luca Deri <deri@ntop.org>
-+ *
-+ * This code includes patches courtesy of
-+ * - Jeff Randall <jrandall@nexvu.com>
-+ * - Helmut Manck <helmut.manck@secunet.com>
-+ * - Brad Doctor <bdoctor@ps-ax.com>
-+ *
-+ */
-+
-+/* FIX: add an entry inside the /proc filesystem */
-+
-+#include <linux/version.h>
-+#include <linux/config.h>
-+#include <linux/module.h>
-+#include <linux/kernel.h>
-+#include <linux/socket.h>
-+#include <linux/skbuff.h>
-+#include <linux/rtnetlink.h>
-+#include <linux/in.h>
-+#include <linux/in6.h>
-+#include <linux/init.h>
-+#include <linux/filter.h>
-+#include <linux/ring.h>
-+#include <linux/ip.h>
-+#include <linux/tcp.h>
-+#include <linux/udp.h>
-+#include <linux/list.h>
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+#include <net/xfrm.h>
-+#else
-+#include <linux/poll.h>
-+#endif
-+#include <net/sock.h>
-+#include <asm/io.h> /* needed for virt_to_phys() */
-+
-+/* #define RING_DEBUG */
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,11))
-+static inline int remap_page_range(struct vm_area_struct *vma,
-+ unsigned long uvaddr,
-+ unsigned long paddr,
-+ unsigned long size,
-+ pgprot_t prot) {
-+ return(remap_pfn_range(vma, uvaddr, paddr >> PAGE_SHIFT,
-+ size, prot));
-+}
-+#endif
-+
-+/* ************************************************* */
-+
-+#define CLUSTER_LEN 8
-+
-+struct ring_cluster {
-+ u_short cluster_id; /* 0 = no cluster */
-+ u_short num_cluster_elements;
-+ enum cluster_type hashing_mode;
-+ u_short hashing_id;
-+ struct sock *sk[CLUSTER_LEN];
-+ struct ring_cluster *next; /* NULL = last element of the cluster */
-+};
-+
-+/* ************************************************* */
-+
-+struct ring_element {
-+ struct list_head list;
-+ struct sock *sk;
-+};
-+
-+/* ************************************************* */
-+
-+struct ring_opt {
-+ struct net_device *ring_netdev;
-+
-+ /* Cluster */
-+ u_short cluster_id; /* 0 = no cluster */
-+
-+ /* Reflector */
-+ struct net_device *reflector_dev;
-+
-+ /* Packet buffers */
-+ unsigned long order;
-+
-+ /* Ring Slots */
-+ unsigned long ring_memory;
-+ FlowSlotInfo *slots_info; /* Basically it points to ring_memory */
-+ char *ring_slots; /* Basically it points to ring_memory
-+ +sizeof(FlowSlotInfo) */
-+
-+ /* Packet Sampling */
-+ u_int pktToSample, sample_rate;
-+
-+ /* BPF Filter */
-+ struct sk_filter *bpfFilter;
-+
-+ /* Locks */
-+ atomic_t num_ring_slots_waiters;
-+ wait_queue_head_t ring_slots_waitqueue;
-+ rwlock_t ring_index_lock;
-+
-+ /* Indexes (Internal) */
-+ u_int insert_page_id, insert_slot_id;
-+};
-+
-+/* ************************************************* */
-+
-+/* List of all ring sockets. */
-+static struct list_head ring_table;
-+
-+/* List of all clusters */
-+static struct ring_cluster *ring_cluster_list;
-+
-+static rwlock_t ring_mgmt_lock = RW_LOCK_UNLOCKED;
-+
-+/* ********************************** */
-+
-+/* Forward */
-+static struct proto_ops ring_ops;
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,11))
-+static struct proto ring_proto;
-+#endif
-+
-+static int skb_ring_handler(struct sk_buff *skb, u_char recv_packet,
-+ u_char real_skb);
-+static int buffer_ring_handler(struct net_device *dev, char *data, int len);
-+static int remove_from_cluster(struct sock *sock, struct ring_opt *pfr);
-+
-+/* Extern */
-+
-+/* ********************************** */
-+
-+/* Defaults */
-+static u_int bucket_len = 128, num_slots = 4096, sample_rate = 1,
-+ transparent_mode = 0, enable_tx_capture = 0;
-+
-+MODULE_PARM(bucket_len, "i");
-+MODULE_PARM_DESC(bucket_len, "Number of ring buckets");
-+MODULE_PARM(num_slots, "i");
-+MODULE_PARM_DESC(num_slots, "Number of ring slots");
-+MODULE_PARM(sample_rate, "i");
-+MODULE_PARM_DESC(sample_rate, "Ring packet sample rate");
-+MODULE_PARM(transparent_mode, "i");
-+MODULE_PARM_DESC(transparent_mode,
-+ "Set to 1 to set transparent mode "
-+ "(slower but backwards compatible)");
-+MODULE_PARM(enable_tx_capture, "i");
-+MODULE_PARM_DESC(enable_tx_capture, "Set to 1 to capture outgoing packets");
-+
-+/* ********************************** */
-+
-+#define MIN_QUEUED_PKTS 64
-+#define MAX_QUEUE_LOOPS 64
-+
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+#define ring_sk_datatype(__sk) ((struct ring_opt *)__sk)
-+#define ring_sk(__sk) ((__sk)->sk_protinfo)
-+#else
-+#define ring_sk_datatype(a) (a)
-+#define ring_sk(__sk) ((__sk)->protinfo.pf_ring)
-+#endif
-+
-+/*
-+ int dev_queue_xmit(struct sk_buff *skb)
-+ skb->dev;
-+ struct net_device *dev_get_by_name(const char *name)
-+*/
-+
-+/* ********************************** */
-+
-+static void ring_sock_destruct(struct sock *sk) {
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+ skb_queue_purge(&sk->sk_receive_queue);
-+
-+ if (!sock_flag(sk, SOCK_DEAD)) {
-+#if defined(RING_DEBUG)
-+ printk("Attempt to release alive ring socket: %p\n", sk);
-+#endif
-+ return;
-+ }
-+
-+ BUG_TRAP(!atomic_read(&sk->sk_rmem_alloc));
-+ BUG_TRAP(!atomic_read(&sk->sk_wmem_alloc));
-+#else
-+
-+ BUG_TRAP(atomic_read(&sk->rmem_alloc)==0);
-+ BUG_TRAP(atomic_read(&sk->wmem_alloc)==0);
-+
-+ if (!sk->dead) {
-+#if defined(RING_DEBUG)
-+ printk("Attempt to release alive ring socket: %p\n", sk);
-+#endif
-+ return;
-+ }
-+#endif
-+
-+ kfree(ring_sk(sk));
-+
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
-+ MOD_DEC_USE_COUNT;
-+#endif
-+}
-+
-+/* ********************************** */
-+/*
-+ * ring_insert()
-+ *
-+ * store the sk in a new element and add it
-+ * to the head of the list.
-+ */
-+static inline void ring_insert(struct sock *sk) {
-+ struct ring_element *next;
-+
-+#if defined(RING_DEBUG)
-+ printk("RING: ring_insert()\n");
-+#endif
-+
-+ next = kmalloc(sizeof(struct ring_element), GFP_ATOMIC);
-+ if(next != NULL) {
-+ next->sk = sk;
-+ write_lock_irq(&ring_mgmt_lock);
-+ list_add(&next->list, &ring_table);
-+ write_unlock_irq(&ring_mgmt_lock);
-+ } else {
-+ if (net_ratelimit())
-+ printk("RING: could not kmalloc slot!!\n");
-+ }
-+}
-+
-+/* ********************************** */
-+/*
-+ * ring_remove()
-+ *
-+ * For each of the elements in the list:
-+ * - check if this is the element we want to delete
-+ * - if it is, remove it from the list, and free it.
-+ *
-+ * stop when we find the one we're looking for (break),
-+ * or when we reach the end of the list.
-+ */
-+static inline void ring_remove(struct sock *sk) {
-+ struct list_head *ptr;
-+ struct ring_element *entry;
-+
-+
-+ for(ptr = ring_table.next; ptr != &ring_table; ptr = ptr->next) {
-+ entry = list_entry(ptr, struct ring_element, list);
-+
-+ if(entry->sk == sk) {
-+ write_lock_irq(&ring_mgmt_lock);
-+ list_del(ptr);
-+ kfree(ptr);
-+ write_unlock_irq(&ring_mgmt_lock);
-+ break;
-+ }
-+ }
-+
-+}
-+
-+/* ********************************** */
-+
-+static u_int32_t num_queued_pkts(struct ring_opt *pfr) {
-+
-+ if(pfr->ring_slots != NULL) {
-+
-+ u_int32_t tot_insert = pfr->slots_info->insert_idx,
-+#if defined(RING_DEBUG)
-+ tot_read = pfr->slots_info->tot_read, tot_pkts;
-+#else
-+ tot_read = pfr->slots_info->tot_read;
-+#endif
-+
-+ if(tot_insert >= tot_read) {
-+#if defined(RING_DEBUG)
-+ tot_pkts = tot_insert-tot_read;
-+#endif
-+ return(tot_insert-tot_read);
-+ } else {
-+#if defined(RING_DEBUG)
-+ tot_pkts = ((u_int32_t)-1)+tot_insert-tot_read;
-+#endif
-+ return(((u_int32_t)-1)+tot_insert-tot_read);
-+ }
-+
-+#if defined(RING_DEBUG)
-+ printk("-> num_queued_pkts=%d [tot_insert=%d][tot_read=%d]\n",
-+ tot_pkts, tot_insert, tot_read);
-+#endif
-+
-+ } else
-+ return(0);
-+}
-+
-+/* ********************************** */
-+
-+static inline FlowSlot* get_insert_slot(struct ring_opt *pfr) {
-+#if defined(RING_DEBUG)
-+ printk("get_insert_slot(%d)\n", pfr->slots_info->insert_idx);
-+#endif
-+
-+ if(pfr->ring_slots != NULL) {
-+ FlowSlot *slot = (FlowSlot*)&(pfr->ring_slots[pfr->slots_info->insert_idx
-+ *pfr->slots_info->slot_len]);
-+ return(slot);
-+ } else
-+ return(NULL);
-+}
-+
-+/* ********************************** */
-+
-+static inline FlowSlot* get_remove_slot(struct ring_opt *pfr) {
-+#if defined(RING_DEBUG)
-+ printk("get_remove_slot(%d)\n", pfr->slots_info->remove_idx);
-+#endif
-+
-+ if(pfr->ring_slots != NULL)
-+ return((FlowSlot*)&(pfr->ring_slots[pfr->slots_info->remove_idx*
-+ pfr->slots_info->slot_len]));
-+ else
-+ return(NULL);
-+}
-+
-+/* ********************************** */
-+
-+static void add_skb_to_ring(struct sk_buff *skb,
-+ struct ring_opt *pfr,
-+ u_char recv_packet,
-+ u_char real_skb /* 1=skb 0=faked skb */) {
-+ FlowSlot *theSlot;
-+ int idx, displ;
-+
-+ if(recv_packet) {
-+ /* Hack for identifying a packet received by the e1000 */
-+ if(real_skb) {
-+ displ = SKB_DISPLACEMENT;
-+ } else
-+ displ = 0; /* Received by the e1000 wrapper */
-+ } else
-+ displ = 0;
-+
-+ write_lock(&pfr->ring_index_lock);
-+ pfr->slots_info->tot_pkts++;
-+ write_unlock(&pfr->ring_index_lock);
-+
-+ /* BPF Filtering (from af_packet.c) */
-+ if(pfr->bpfFilter != NULL) {
-+ unsigned res = 1, len;
-+
-+ len = skb->len-skb->data_len;
-+
-+ write_lock(&pfr->ring_index_lock);
-+ skb->data -= displ;
-+ res = sk_run_filter(skb, pfr->bpfFilter->insns, pfr->bpfFilter->len);
-+ skb->data += displ;
-+ write_unlock(&pfr->ring_index_lock);
-+
-+ if(res == 0) {
-+ /* Filter failed */
-+
-+#if defined(RING_DEBUG)
-+ printk("add_skb_to_ring(skb): Filter failed [len=%d][tot=%llu]"
-+ "[insertIdx=%d][pkt_type=%d][cloned=%d]\n",
-+ (int)skb->len, pfr->slots_info->tot_pkts,
-+ pfr->slots_info->insert_idx,
-+ skb->pkt_type, skb->cloned);
-+#endif
-+
-+ return;
-+ }
-+ }
-+
-+ /* ************************** */
-+
-+ if(pfr->sample_rate > 1) {
-+ if(pfr->pktToSample == 0) {
-+ write_lock(&pfr->ring_index_lock);
-+ pfr->pktToSample = pfr->sample_rate;
-+ write_unlock(&pfr->ring_index_lock);
-+ } else {
-+ write_lock(&pfr->ring_index_lock);
-+ pfr->pktToSample--;
-+ write_unlock(&pfr->ring_index_lock);
-+
-+#if defined(RING_DEBUG)
-+ printk("add_skb_to_ring(skb): sampled packet [len=%d]"
-+ "[tot=%llu][insertIdx=%d][pkt_type=%d][cloned=%d]\n",
-+ (int)skb->len, pfr->slots_info->tot_pkts,
-+ pfr->slots_info->insert_idx,
-+ skb->pkt_type, skb->cloned);
-+#endif
-+ return;
-+ }
-+ }
-+
-+ /* ************************************* */
-+
-+ if((pfr->reflector_dev != NULL)
-+ && (!netif_queue_stopped(pfr->reflector_dev))) {
-+ int cpu = smp_processor_id();
-+
-+ /* increase reference counter so that this skb is not freed */
-+ atomic_inc(&skb->users);
-+
-+ skb->data -= displ;
-+
-+ /* send it */
-+ if (pfr->reflector_dev->xmit_lock_owner != cpu) {
-+ spin_lock_bh(&pfr->reflector_dev->xmit_lock);
-+ pfr->reflector_dev->xmit_lock_owner = cpu;
-+ spin_unlock_bh(&pfr->reflector_dev->xmit_lock);
-+
-+ if (pfr->reflector_dev->hard_start_xmit(skb,
-+ pfr->reflector_dev) == 0) {
-+ spin_lock_bh(&pfr->reflector_dev->xmit_lock);
-+ pfr->reflector_dev->xmit_lock_owner = -1;
-+ skb->data += displ;
-+ spin_unlock_bh(&pfr->reflector_dev->xmit_lock);
-+#if defined(RING_DEBUG)
-+ printk("++ hard_start_xmit succeeded\n");
-+#endif
-+ return; /* OK */
-+ }
-+
-+ spin_lock_bh(&pfr->reflector_dev->xmit_lock);
-+ pfr->reflector_dev->xmit_lock_owner = -1;
-+ spin_unlock_bh(&pfr->reflector_dev->xmit_lock);
-+ }
-+
-+#if defined(RING_DEBUG)
-+ printk("++ hard_start_xmit failed\n");
-+#endif
-+ skb->data += displ;
-+ return; /* -ENETDOWN */
-+ }
-+
-+ /* ************************************* */
-+
-+#if defined(RING_DEBUG)
-+ printk("add_skb_to_ring(skb) [len=%d][tot=%llu][insertIdx=%d]"
-+ "[pkt_type=%d][cloned=%d]\n",
-+ (int)skb->len, pfr->slots_info->tot_pkts,
-+ pfr->slots_info->insert_idx,
-+ skb->pkt_type, skb->cloned);
-+#endif
-+
-+ idx = pfr->slots_info->insert_idx;
-+ theSlot = get_insert_slot(pfr);
-+
-+ if((theSlot != NULL) && (theSlot->slot_state == 0)) {
-+ struct pcap_pkthdr *hdr;
-+ unsigned int bucketSpace;
-+ char *bucket;
-+
-+ /* Update Index */
-+ idx++;
-+
-+ if(idx == pfr->slots_info->tot_slots) {
-+ write_lock(&pfr->ring_index_lock);
-+ pfr->slots_info->insert_idx = 0;
-+ write_unlock(&pfr->ring_index_lock);
-+ } else {
-+ write_lock(&pfr->ring_index_lock);
-+ pfr->slots_info->insert_idx = idx;
-+ write_unlock(&pfr->ring_index_lock);
-+ }
-+
-+ bucketSpace = pfr->slots_info->slot_len
-+#ifdef RING_MAGIC
-+ - sizeof(u_char)
-+#endif
-+ - sizeof(u_char) /* flowSlot.slot_state */
-+ - sizeof(struct pcap_pkthdr)
-+ - 1 /* 10 */ /* safe boundary */;
-+
-+ bucket = &theSlot->bucket;
-+ hdr = (struct pcap_pkthdr*)bucket;
-+
-+ if(skb->stamp.tv_sec == 0) do_gettimeofday(&skb->stamp);
-+
-+ hdr->ts.tv_sec = skb->stamp.tv_sec, hdr->ts.tv_usec = skb->stamp.tv_usec;
-+ hdr->caplen = skb->len+displ;
-+
-+ if(hdr->caplen > bucketSpace)
-+ hdr->caplen = bucketSpace;
-+
-+ hdr->len = skb->len+displ;
-+ memcpy(&bucket[sizeof(struct pcap_pkthdr)],
-+ skb->data-displ, hdr->caplen);
-+
-+#if defined(RING_DEBUG)
-+ {
-+ static unsigned int lastLoss = 0;
-+
-+ if(pfr->slots_info->tot_lost
-+ && (lastLoss != pfr->slots_info->tot_lost)) {
-+ printk("add_skb_to_ring(%d): [bucketSpace=%d]"
-+ "[hdr.caplen=%d][skb->len=%d]"
-+ "[pcap_pkthdr=%d][removeIdx=%d]"
-+ "[loss=%lu][page=%u][slot=%u]\n",
-+ idx-1, bucketSpace, hdr->caplen, skb->len,
-+ sizeof(struct pcap_pkthdr),
-+ pfr->slots_info->remove_idx,
-+ (long unsigned int)pfr->slots_info->tot_lost,
-+ pfr->insert_page_id, pfr->insert_slot_id);
-+
-+ lastLoss = pfr->slots_info->tot_lost;
-+ }
-+ }
-+#endif
-+
-+ write_lock(&pfr->ring_index_lock);
-+ pfr->slots_info->tot_insert++;
-+ theSlot->slot_state = 1;
-+ write_unlock(&pfr->ring_index_lock);
-+ } else {
-+ write_lock(&pfr->ring_index_lock);
-+ pfr->slots_info->tot_lost++;
-+ write_unlock(&pfr->ring_index_lock);
-+
-+#if defined(RING_DEBUG)
-+ printk("add_skb_to_ring(skb): packet lost [loss=%lu]"
-+ "[removeIdx=%u][insertIdx=%u]\n",
-+ (long unsigned int)pfr->slots_info->tot_lost,
-+ pfr->slots_info->remove_idx, pfr->slots_info->insert_idx);
-+#endif
-+ }
-+
-+ /* wakeup in case of poll() */
-+ if(waitqueue_active(&pfr->ring_slots_waitqueue))
-+ wake_up_interruptible(&pfr->ring_slots_waitqueue);
-+}
-+
-+/* ********************************** */
-+
-+static u_int hash_skb(struct ring_cluster *cluster_ptr,
-+ struct sk_buff *skb, u_char recv_packet) {
-+ u_int idx;
-+ int displ;
-+ struct iphdr *ip;
-+
-+ if(cluster_ptr->hashing_mode == cluster_round_robin) {
-+ idx = cluster_ptr->hashing_id++;
-+ } else {
-+ /* Per-flow clustering */
-+ if(skb->len > sizeof(struct iphdr)+sizeof(struct tcphdr)) {
-+ if(recv_packet)
-+ displ = 0;
-+ else
-+ displ = SKB_DISPLACEMENT;
-+
-+ /*
-+ skb->data+displ
-+
-+ Always points to to the IP part of the packet
-+ */
-+
-+ ip = (struct iphdr*)(skb->data+displ);
-+
-+ idx = ip->saddr+ip->daddr+ip->protocol;
-+
-+ if(ip->protocol == IPPROTO_TCP) {
-+ struct tcphdr *tcp = (struct tcphdr*)(skb->data+displ
-+ +sizeof(struct iphdr));
-+ idx += tcp->source+tcp->dest;
-+ } else if(ip->protocol == IPPROTO_UDP) {
-+ struct udphdr *udp = (struct udphdr*)(skb->data+displ
-+ +sizeof(struct iphdr));
-+ idx += udp->source+udp->dest;
-+ }
-+ } else
-+ idx = skb->len;
-+ }
-+
-+ return(idx % cluster_ptr->num_cluster_elements);
-+}
-+
-+/* ********************************** */
-+
-+static int skb_ring_handler(struct sk_buff *skb,
-+ u_char recv_packet,
-+ u_char real_skb /* 1=skb 0=faked skb */) {
-+ struct sock *skElement;
-+ int rc = 0;
-+ struct list_head *ptr;
-+ struct ring_cluster *cluster_ptr;
-+
-+ if((!skb) /* Invalid skb */
-+ || ((!enable_tx_capture) && (!recv_packet))) {
-+ /*
-+ An outgoing packet is about to be sent out
-+ but we decided not to handle transmitted
-+ packets.
-+ */
-+ return(0);
-+ }
-+
-+#if defined(RING_DEBUG)
-+ if(0) {
-+ printk("skb_ring_handler() [len=%d][dev=%s]\n", skb->len,
-+ skb->dev->name == NULL ? "<NULL>" : skb->dev->name);
-+ }
-+#endif
-+
-+ /* [1] Check unclustered sockets */
-+ for (ptr = ring_table.next; ptr != &ring_table; ptr = ptr->next) {
-+ struct ring_opt *pfr;
-+ struct ring_element *entry;
-+
-+ entry = list_entry(ptr, struct ring_element, list);
-+
-+ read_lock(&ring_mgmt_lock);
-+ skElement = entry->sk;
-+ pfr = ring_sk(skElement);
-+ read_unlock(&ring_mgmt_lock);
-+
-+ if((pfr != NULL)
-+ && (pfr->cluster_id == 0 /* No cluster */)
-+ && (pfr->ring_slots != NULL)
-+ && (pfr->ring_netdev == skb->dev)) {
-+ /* We've found the ring where the packet can be stored */
-+ read_lock(&ring_mgmt_lock);
-+ add_skb_to_ring(skb, pfr, recv_packet, real_skb);
-+ read_unlock(&ring_mgmt_lock);
-+
-+ rc = 1; /* Ring found: we've done our job */
-+ }
-+ }
-+
-+ /* [2] Check socket clusters */
-+ cluster_ptr = ring_cluster_list;
-+
-+ while(cluster_ptr != NULL) {
-+ struct ring_opt *pfr;
-+
-+ if(cluster_ptr->num_cluster_elements > 0) {
-+ u_int skb_hash = hash_skb(cluster_ptr, skb, recv_packet);
-+
-+ read_lock(&ring_mgmt_lock);
-+ skElement = cluster_ptr->sk[skb_hash];
-+ read_unlock(&ring_mgmt_lock);
-+
-+ if(skElement != NULL) {
-+ pfr = ring_sk(skElement);
-+
-+ if((pfr != NULL)
-+ && (pfr->ring_slots != NULL)
-+ && (pfr->ring_netdev == skb->dev)) {
-+ /* We've found the ring where the packet can be stored */
-+ read_lock(&ring_mgmt_lock);
-+ add_skb_to_ring(skb, pfr, recv_packet, real_skb);
-+ read_unlock(&ring_mgmt_lock);
-+
-+ rc = 1; /* Ring found: we've done our job */
-+ }
-+ }
-+ }
-+
-+ cluster_ptr = cluster_ptr->next;
-+ }
-+
-+ if(transparent_mode) rc = 0;
-+
-+ if((rc != 0) && real_skb)
-+ dev_kfree_skb(skb); /* Free the skb */
-+
-+ return(rc); /* 0 = packet not handled */
-+}
-+
-+/* ********************************** */
-+
-+struct sk_buff skb;
-+
-+static int buffer_ring_handler(struct net_device *dev,
-+ char *data, int len) {
-+
-+#if defined(RING_DEBUG)
-+ printk("buffer_ring_handler: [dev=%s][len=%d]\n",
-+ dev->name == NULL ? "<NULL>" : dev->name, len);
-+#endif
-+
-+ skb.dev = dev, skb.len = len, skb.data = data,
-+ skb.data_len = len, skb.stamp.tv_sec = 0; /* Calculate the time */
-+
-+ skb_ring_handler(&skb, 1, 0 /* fake skb */);
-+
-+ return(0);
-+}
-+
-+/* ********************************** */
-+
-+static int ring_create(struct socket *sock, int protocol) {
-+ struct sock *sk;
-+ struct ring_opt *pfr;
-+ int err;
-+
-+#if defined(RING_DEBUG)
-+ printk("RING: ring_create()\n");
-+#endif
-+
-+ /* Are you root, superuser or so ? */
-+ if(!capable(CAP_NET_ADMIN))
-+ return -EPERM;
-+
-+ if(sock->type != SOCK_RAW)
-+ return -ESOCKTNOSUPPORT;
-+
-+ if(protocol != htons(ETH_P_ALL))
-+ return -EPROTONOSUPPORT;
-+
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
-+ MOD_INC_USE_COUNT;
-+#endif
-+
-+ err = -ENOMEM;
-+
-+ // BD: -- broke this out to keep it more simple and clear as to what the
-+ // options are.
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,11))
-+ sk = sk_alloc(PF_RING, GFP_KERNEL, 1, NULL);
-+#endif
-+#endif
-+
-+ // BD: API changed in 2.6.12, ref:
-+ // http://svn.clkao.org/svnweb/linux/revision/?rev=28201
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,11))
-+ sk = sk_alloc(PF_RING, GFP_ATOMIC, &ring_proto, 1);
-+#endif
-+
-+ if (sk == NULL)
-+ goto out;
-+
-+ sock->ops = &ring_ops;
-+ sock_init_data(sock, sk);
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,11))
-+ sk_set_owner(sk, THIS_MODULE);
-+#endif
-+#endif
-+
-+ err = -ENOMEM;
-+ ring_sk(sk) = ring_sk_datatype(kmalloc(sizeof(*pfr), GFP_KERNEL));
-+
-+ if (!(pfr = ring_sk(sk))) {
-+ sk_free(sk);
-+ goto out;
-+ }
-+ memset(pfr, 0, sizeof(*pfr));
-+ init_waitqueue_head(&pfr->ring_slots_waitqueue);
-+ pfr->ring_index_lock = RW_LOCK_UNLOCKED;
-+ atomic_set(&pfr->num_ring_slots_waiters, 0);
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+ sk->sk_family = PF_RING;
-+ sk->sk_destruct = ring_sock_destruct;
-+#else
-+ sk->family = PF_RING;
-+ sk->destruct = ring_sock_destruct;
-+ sk->num = protocol;
-+#endif
-+
-+ ring_insert(sk);
-+
-+#if defined(RING_DEBUG)
-+ printk("RING: ring_create() - created\n");
-+#endif
-+
-+ return(0);
-+ out:
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
-+ MOD_DEC_USE_COUNT;
-+#endif
-+ return err;
-+}
-+
-+/* *********************************************** */
-+
-+static int ring_release(struct socket *sock)
-+{
-+ struct sock *sk = sock->sk;
-+ struct ring_opt *pfr = ring_sk(sk);
-+
-+ if(!sk)
-+ return 0;
-+
-+#if defined(RING_DEBUG)
-+ printk("RING: called ring_release\n");
-+#endif
-+
-+#if defined(RING_DEBUG)
-+ printk("RING: ring_release entered\n");
-+#endif
-+
-+ ring_remove(sk);
-+
-+ sock_orphan(sk);
-+ sock->sk = NULL;
-+
-+ /* Free the ring buffer */
-+ if(pfr->ring_memory) {
-+ struct page *page, *page_end;
-+
-+ page_end = virt_to_page(pfr->ring_memory + (PAGE_SIZE << pfr->order) - 1);
-+ for(page = virt_to_page(pfr->ring_memory); page <= page_end; page++)
-+ ClearPageReserved(page);
-+
-+ free_pages(pfr->ring_memory, pfr->order);
-+ }
-+
-+ kfree(pfr);
-+ ring_sk(sk) = NULL;
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+ skb_queue_purge(&sk->sk_write_queue);
-+#endif
-+ sock_put(sk);
-+
-+#if defined(RING_DEBUG)
-+ printk("RING: ring_release leaving\n");
-+#endif
-+
-+ return 0;
-+}
-+
-+/* ********************************** */
-+/*
-+ * We create a ring for this socket and bind it to the specified device
-+ */
-+static int packet_ring_bind(struct sock *sk, struct net_device *dev)
-+{
-+ u_int the_slot_len;
-+ u_int32_t tot_mem;
-+ struct ring_opt *pfr = ring_sk(sk);
-+ struct page *page, *page_end;
-+
-+ if(!dev) return(-1);
-+
-+#if defined(RING_DEBUG)
-+ printk("RING: packet_ring_bind(%s) called\n", dev->name);
-+#endif
-+
-+ /* **********************************************
-+
-+ *************************************
-+ * *
-+ * FlowSlotInfo *
-+ * *
-+ ************************************* <-+
-+ * FlowSlot * |
-+ ************************************* |
-+ * FlowSlot * |
-+ ************************************* +- num_slots
-+ * FlowSlot * |
-+ ************************************* |
-+ * FlowSlot * |
-+ ************************************* <-+
-+
-+ ********************************************** */
-+
-+ the_slot_len = sizeof(u_char) /* flowSlot.slot_state */
-+ + sizeof(u_short) /* flowSlot.slot_len */
-+ + bucket_len /* flowSlot.bucket */;
-+
-+ tot_mem = sizeof(FlowSlotInfo) + num_slots*the_slot_len;
-+
-+ /*
-+ Calculate the value of the order parameter used later.
-+ See http://www.linuxjournal.com/article.php?sid=1133
-+ */
-+ for(pfr->order = 0;(PAGE_SIZE << pfr->order) < tot_mem; pfr->order++) ;
-+
-+ /*
-+ We now try to allocate the memory as required. If we fail
-+ we try to allocate a smaller amount or memory (hence a
-+ smaller ring).
-+ */
-+ while((pfr->ring_memory = __get_free_pages(GFP_ATOMIC, pfr->order)) == 0)
-+ if(pfr->order-- == 0)
-+ break;
-+
-+ if(pfr->order == 0) {
-+#if defined(RING_DEBUG)
-+ printk("ERROR: not enough memory\n");
-+#endif
-+ return(-1);
-+ } else {
-+#if defined(RING_DEBUG)
-+ printk("RING: succesfully allocated %lu KB [tot_mem=%d][order=%ld]\n",
-+ PAGE_SIZE >> (10 - pfr->order), tot_mem, pfr->order);
-+#endif
-+ }
-+
-+ tot_mem = PAGE_SIZE << pfr->order;
-+ memset((char*)pfr->ring_memory, 0, tot_mem);
-+
-+ /* Now we need to reserve the pages */
-+ page_end = virt_to_page(pfr->ring_memory + (PAGE_SIZE << pfr->order) - 1);
-+ for(page = virt_to_page(pfr->ring_memory); page <= page_end; page++)
-+ SetPageReserved(page);
-+
-+ pfr->slots_info = (FlowSlotInfo*)pfr->ring_memory;
-+ pfr->ring_slots = (char*)(pfr->ring_memory+sizeof(FlowSlotInfo));
-+
-+ pfr->slots_info->version = RING_FLOWSLOT_VERSION;
-+ pfr->slots_info->slot_len = the_slot_len;
-+ pfr->slots_info->tot_slots = (tot_mem-sizeof(FlowSlotInfo))/the_slot_len;
-+ pfr->slots_info->tot_mem = tot_mem;
-+ pfr->slots_info->sample_rate = sample_rate;
-+
-+#if defined(RING_DEBUG)
-+ printk("RING: allocated %d slots [slot_len=%d][tot_mem=%u]\n",
-+ pfr->slots_info->tot_slots, pfr->slots_info->slot_len,
-+ pfr->slots_info->tot_mem);
-+#endif
-+
-+#ifdef RING_MAGIC
-+ {
-+ int i;
-+
-+ for(i=0; i<pfr->slots_info->tot_slots; i++) {
-+ unsigned long idx = i*pfr->slots_info->slot_len;
-+ FlowSlot *slot = (FlowSlot*)&pfr->ring_slots[idx];
-+ slot->magic = RING_MAGIC_VALUE; slot->slot_state = 0;
-+ }
-+ }
-+#endif
-+
-+ pfr->insert_page_id = 1, pfr->insert_slot_id = 0;
-+
-+ /*
-+ IMPORTANT
-+ Leave this statement here as last one. In fact when
-+ the ring_netdev != NULL the socket is ready to be used.
-+ */
-+ pfr->ring_netdev = dev;
-+
-+ return(0);
-+}
-+
-+/* ************************************* */
-+
-+/* Bind to a device */
-+static int ring_bind(struct socket *sock,
-+ struct sockaddr *sa, int addr_len)
-+{
-+ struct sock *sk=sock->sk;
-+ struct net_device *dev = NULL;
-+
-+#if defined(RING_DEBUG)
-+ printk("RING: ring_bind() called\n");
-+#endif
-+
-+ /*
-+ * Check legality
-+ */
-+ if (addr_len != sizeof(struct sockaddr))
-+ return -EINVAL;
-+ if (sa->sa_family != PF_RING)
-+ return -EINVAL;
-+
-+ /* Safety check: add trailing zero if missing */
-+ sa->sa_data[sizeof(sa->sa_data)-1] = '\0';
-+
-+#if defined(RING_DEBUG)
-+ printk("RING: searching device %s\n", sa->sa_data);
-+#endif
-+
-+ if((dev = __dev_get_by_name(sa->sa_data)) == NULL) {
-+#if defined(RING_DEBUG)
-+ printk("RING: search failed\n");
-+#endif
-+ return(-EINVAL);
-+ } else
-+ return(packet_ring_bind(sk, dev));
-+}
-+
-+/* ************************************* */
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+
-+volatile void* virt_to_kseg(volatile void* address) {
-+ pte_t *pte;
-+ pud_t *pud;
-+ unsigned long addr = (unsigned long)address;
-+
-+ pud = pud_offset(pgd_offset_k((unsigned long) address),
-+ (unsigned long) address);
-+
-+ /*
-+ High-memory support courtesy of
-+ Brad Doctor <bdoctor@ps-ax.com>
-+ */
-+#if defined(CONFIG_X86_PAE) && (!defined(CONFIG_NOHIGHMEM))
-+ pte = pte_offset_map(pmd_offset(pud, addr), addr);
-+#else
-+ pte = pmd_offset_map(pud, addr);
-+#endif
-+
-+ return((volatile void*)pte_page(*pte));
-+}
-+
-+#else /* 2.4 */
-+
-+/* http://www.scs.ch/~frey/linux/memorymap.html */
-+volatile void *virt_to_kseg(volatile void *address)
-+{
-+ pgd_t *pgd; pmd_t *pmd; pte_t *ptep, pte;
-+ unsigned long va, ret = 0UL;
-+
-+ va=VMALLOC_VMADDR((unsigned long)address);
-+
-+ /* get the page directory. Use the kernel memory map. */
-+ pgd = pgd_offset_k(va);
-+
-+ /* check whether we found an entry */
-+ if (!pgd_none(*pgd))
-+ {
-+ /* get the page middle directory */
-+ pmd = pmd_offset(pgd, va);
-+ /* check whether we found an entry */
-+ if (!pmd_none(*pmd))
-+ {
-+ /* get a pointer to the page table entry */
-+ ptep = pte_offset(pmd, va);
-+ pte = *ptep;
-+ /* check for a valid page */
-+ if (pte_present(pte))
-+ {
-+ /* get the address the page is refering to */
-+ ret = (unsigned long)page_address(pte_page(pte));
-+ /* add the offset within the page to the page address */
-+ ret |= (va & (PAGE_SIZE -1));
-+ }
-+ }
-+ }
-+ return((volatile void *)ret);
-+}
-+#endif
-+
-+/* ************************************* */
-+
-+static int ring_mmap(struct file *file,
-+ struct socket *sock,
-+ struct vm_area_struct *vma)
-+{
-+ struct sock *sk = sock->sk;
-+ struct ring_opt *pfr = ring_sk(sk);
-+ unsigned long size, start;
-+ u_int pagesToMap;
-+ char *ptr;
-+
-+#if defined(RING_DEBUG)
-+ printk("RING: ring_mmap() called\n");
-+#endif
-+
-+ if(pfr->ring_memory == 0) {
-+#if defined(RING_DEBUG)
-+ printk("RING: ring_mmap() failed: mapping area to an unbound socket\n");
-+#endif
-+ return -EINVAL;
-+ }
-+
-+ size = (unsigned long)(vma->vm_end-vma->vm_start);
-+
-+ if(size % PAGE_SIZE) {
-+#if defined(RING_DEBUG)
-+ printk("RING: ring_mmap() failed: len is not multiple of PAGE_SIZE\n");
-+#endif
-+ return(-EINVAL);
-+ }
-+
-+ /* if userspace tries to mmap beyond end of our buffer, fail */
-+ if(size > pfr->slots_info->tot_mem) {
-+#if defined(RING_DEBUG)
-+ printk("proc_mmap() failed: area too large [%ld > %d]\n", size, pfr->slots_info->tot_mem);
-+#endif
-+ return(-EINVAL);
-+ }
-+
-+ pagesToMap = size/PAGE_SIZE;
-+
-+#if defined(RING_DEBUG)
-+ printk("RING: ring_mmap() called. %d pages to map\n", pagesToMap);
-+#endif
-+
-+#if defined(RING_DEBUG)
-+ printk("RING: mmap [slot_len=%d][tot_slots=%d] for ring on device %s\n",
-+ pfr->slots_info->slot_len, pfr->slots_info->tot_slots,
-+ pfr->ring_netdev->name);
-+#endif
-+
-+ /* we do not want to have this area swapped out, lock it */
-+ vma->vm_flags |= VM_LOCKED;
-+ start = vma->vm_start;
-+
-+ /* Ring slots start from page 1 (page 0 is reserved for FlowSlotInfo) */
-+ ptr = (char*)(start+PAGE_SIZE);
-+
-+ if(remap_page_range(
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+ vma,
-+#endif
-+ start,
-+ __pa(pfr->ring_memory),
-+ PAGE_SIZE*pagesToMap, vma->vm_page_prot)) {
-+#if defined(RING_DEBUG)
-+ printk("remap_page_range() failed\n");
-+#endif
-+ return(-EAGAIN);
-+ }
-+
-+#if defined(RING_DEBUG)
-+ printk("proc_mmap(pagesToMap=%d): success.\n", pagesToMap);
-+#endif
-+
-+ return 0;
-+}
-+
-+/* ************************************* */
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+static int ring_recvmsg(struct kiocb *iocb, struct socket *sock,
-+ struct msghdr *msg, size_t len, int flags)
-+#else
-+ static int ring_recvmsg(struct socket *sock, struct msghdr *msg, int len,
-+ int flags, struct scm_cookie *scm)
-+#endif
-+{
-+ FlowSlot* slot;
-+ struct ring_opt *pfr = ring_sk(sock->sk);
-+ u_int32_t queued_pkts, num_loops = 0;
-+
-+#if defined(RING_DEBUG)
-+ printk("ring_recvmsg called\n");
-+#endif
-+
-+ slot = get_remove_slot(pfr);
-+
-+ while((queued_pkts = num_queued_pkts(pfr)) < MIN_QUEUED_PKTS) {
-+ wait_event_interruptible(pfr->ring_slots_waitqueue, 1);
-+
-+#if defined(RING_DEBUG)
-+ printk("-> ring_recvmsg returning %d [queued_pkts=%d][num_loops=%d]\n",
-+ slot->slot_state, queued_pkts, num_loops);
-+#endif
-+
-+ if(queued_pkts > 0) {
-+ if(num_loops++ > MAX_QUEUE_LOOPS)
-+ break;
-+ }
-+ }
-+
-+#if defined(RING_DEBUG)
-+ if(slot != NULL)
-+ printk("ring_recvmsg is returning [queued_pkts=%d][num_loops=%d]\n",
-+ queued_pkts, num_loops);
-+#endif
-+
-+ return(queued_pkts);
-+}
-+
-+/* ************************************* */
-+
-+unsigned int ring_poll(struct file * file,
-+ struct socket *sock, poll_table *wait)
-+{
-+ FlowSlot* slot;
-+ struct ring_opt *pfr = ring_sk(sock->sk);
-+
-+#if defined(RING_DEBUG)
-+ printk("poll called\n");
-+#endif
-+
-+ slot = get_remove_slot(pfr);
-+
-+ if((slot != NULL) && (slot->slot_state == 0))
-+ poll_wait(file, &pfr->ring_slots_waitqueue, wait);
-+
-+#if defined(RING_DEBUG)
-+ printk("poll returning %d\n", slot->slot_state);
-+#endif
-+
-+ if((slot != NULL) && (slot->slot_state == 1))
-+ return(POLLIN | POLLRDNORM);
-+ else
-+ return(0);
-+}
-+
-+/* ************************************* */
-+
-+int add_to_cluster_list(struct ring_cluster *el,
-+ struct sock *sock) {
-+
-+ if(el->num_cluster_elements == CLUSTER_LEN)
-+ return(-1); /* Cluster full */
-+
-+ ring_sk_datatype(ring_sk(sock))->cluster_id = el->cluster_id;
-+ el->sk[el->num_cluster_elements] = sock;
-+ el->num_cluster_elements++;
-+ return(0);
-+}
-+
-+/* ************************************* */
-+
-+int remove_from_cluster_list(struct ring_cluster *el,
-+ struct sock *sock) {
-+ int i, j;
-+
-+ for(i=0; i<CLUSTER_LEN; i++)
-+ if(el->sk[i] == sock) {
-+ el->num_cluster_elements--;
-+
-+ if(el->num_cluster_elements > 0) {
-+ /* The cluster contains other elements */
-+ for(j=i; j<CLUSTER_LEN-1; j++)
-+ el->sk[j] = el->sk[j+1];
-+
-+ el->sk[CLUSTER_LEN-1] = NULL;
-+ } else {
-+ /* Empty cluster */
-+ memset(el->sk, 0, sizeof(el->sk));
-+ }
-+
-+ return(0);
-+ }
-+
-+ return(-1); /* Not found */
-+}
-+
-+/* ************************************* */
-+
-+static int remove_from_cluster(struct sock *sock,
-+ struct ring_opt *pfr)
-+{
-+ struct ring_cluster *el;
-+
-+#if defined(RING_DEBUG)
-+ printk("--> remove_from_cluster(%d)\n", pfr->cluster_id);
-+#endif
-+
-+ if(pfr->cluster_id == 0 /* 0 = No Cluster */)
-+ return(0); /* Noting to do */
-+
-+ el = ring_cluster_list;
-+
-+ while(el != NULL) {
-+ if(el->cluster_id == pfr->cluster_id) {
-+ return(remove_from_cluster_list(el, sock));
-+ } else
-+ el = el->next;
-+ }
-+
-+ return(-EINVAL); /* Not found */
-+}
-+
-+/* ************************************* */
-+
-+static int add_to_cluster(struct sock *sock,
-+ struct ring_opt *pfr,
-+ u_short cluster_id)
-+{
-+ struct ring_cluster *el;
-+
-+#ifndef RING_DEBUG
-+ printk("--> add_to_cluster(%d)\n", cluster_id);
-+#endif
-+
-+ if(cluster_id == 0 /* 0 = No Cluster */) return(-EINVAL);
-+
-+ if(pfr->cluster_id != 0)
-+ remove_from_cluster(sock, pfr);
-+
-+ el = ring_cluster_list;
-+
-+ while(el != NULL) {
-+ if(el->cluster_id == cluster_id) {
-+ return(add_to_cluster_list(el, sock));
-+ } else
-+ el = el->next;
-+ }
-+
-+ /* There's no existing cluster. We need to create one */
-+ if((el = kmalloc(sizeof(struct ring_cluster), GFP_KERNEL)) == NULL)
-+ return(-ENOMEM);
-+
-+ el->cluster_id = cluster_id;
-+ el->num_cluster_elements = 1;
-+ el->hashing_mode = cluster_per_flow; /* Default */
-+ el->hashing_id = 0;
-+
-+ memset(el->sk, 0, sizeof(el->sk));
-+ el->sk[0] = sock;
-+ el->next = ring_cluster_list;
-+ ring_cluster_list = el;
-+ pfr->cluster_id = cluster_id;
-+
-+ return(0); /* 0 = OK */
-+}
-+
-+/* ************************************* */
-+
-+/* Code taken/inspired from core/sock.c */
-+static int ring_setsockopt(struct socket *sock,
-+ int level, int optname,
-+ char *optval, int optlen)
-+{
-+ struct ring_opt *pfr = ring_sk(sock->sk);
-+ int val, found, ret = 0;
-+ u_int cluster_id;
-+ char devName[8];
-+
-+ if((optlen<sizeof(int)) || (pfr == NULL))
-+ return(-EINVAL);
-+
-+ if (get_user(val, (int *)optval))
-+ return -EFAULT;
-+
-+ found = 1;
-+
-+ switch(optname)
-+ {
-+ case SO_ATTACH_FILTER:
-+ ret = -EINVAL;
-+ if (optlen == sizeof(struct sock_fprog)) {
-+ unsigned int fsize;
-+ struct sock_fprog fprog;
-+ struct sk_filter *filter;
-+
-+ ret = -EFAULT;
-+
-+ /*
-+ NOTE
-+
-+ Do not call copy_from_user within a held
-+ splinlock (e.g. ring_mgmt_lock) as this caused
-+ problems when certain debugging was enabled under
-+ 2.6.5 -- including hard lockups of the machine.
-+ */
-+ if(copy_from_user(&fprog, optval, sizeof(fprog)))
-+ break;
-+
-+ fsize = sizeof(struct sock_filter) * fprog.len;
-+ filter = kmalloc(fsize, GFP_KERNEL);
-+
-+ if(filter == NULL) {
-+ ret = -ENOMEM;
-+ break;
-+ }
-+
-+ if(copy_from_user(filter->insns, fprog.filter, fsize))
-+ break;
-+
-+ filter->len = fprog.len;
-+
-+ if(sk_chk_filter(filter->insns, filter->len) != 0) {
-+ /* Bad filter specified */
-+ kfree(filter);
-+ pfr->bpfFilter = NULL;
-+ break;
-+ }
-+
-+ /* get the lock, set the filter, release the lock */
-+ write_lock(&ring_mgmt_lock);
-+ pfr->bpfFilter = filter;
-+ write_unlock(&ring_mgmt_lock);
-+ }
-+ ret = 0;
-+ break;
-+
-+ case SO_DETACH_FILTER:
-+ write_lock(&ring_mgmt_lock);
-+ found = 1;
-+ if(pfr->bpfFilter != NULL) {
-+ kfree(pfr->bpfFilter);
-+ pfr->bpfFilter = NULL;
-+ write_unlock(&ring_mgmt_lock);
-+ break;
-+ }
-+ ret = -ENONET;
-+ break;
-+
-+ case SO_ADD_TO_CLUSTER:
-+ if (optlen!=sizeof(val))
-+ return -EINVAL;
-+
-+ if (copy_from_user(&cluster_id, optval, sizeof(cluster_id)))
-+ return -EFAULT;
-+
-+ write_lock(&ring_mgmt_lock);
-+ ret = add_to_cluster(sock->sk, pfr, cluster_id);
-+ write_unlock(&ring_mgmt_lock);
-+ break;
-+
-+ case SO_REMOVE_FROM_CLUSTER:
-+ write_lock(&ring_mgmt_lock);
-+ ret = remove_from_cluster(sock->sk, pfr);
-+ write_unlock(&ring_mgmt_lock);
-+ break;
-+
-+ case SO_SET_REFLECTOR:
-+ if(optlen >= (sizeof(devName)-1))
-+ return -EINVAL;
-+
-+ if(optlen > 0) {
-+ if(copy_from_user(devName, optval, optlen))
-+ return -EFAULT;
-+ }
-+
-+ devName[optlen] = '\0';
-+
-+#if defined(RING_DEBUG)
-+ printk("+++ SO_SET_REFLECTOR(%s)\n", devName);
-+#endif
-+
-+ write_lock(&ring_mgmt_lock);
-+ pfr->reflector_dev = dev_get_by_name(devName);
-+ write_unlock(&ring_mgmt_lock);
-+
-+#if defined(RING_DEBUG)
-+ if(pfr->reflector_dev != NULL)
-+ printk("SO_SET_REFLECTOR(%s): succeded\n", devName);
-+ else
-+ printk("SO_SET_REFLECTOR(%s): device unknown\n", devName);
-+#endif
-+ break;
-+
-+ default:
-+ found = 0;
-+ break;
-+ }
-+
-+ if(found)
-+ return(ret);
-+ else
-+ return(sock_setsockopt(sock, level, optname, optval, optlen));
-+}
-+
-+/* ************************************* */
-+
-+static int ring_ioctl(struct socket *sock,
-+ unsigned int cmd, unsigned long arg)
-+{
-+ switch(cmd)
-+ {
-+ case SIOCGIFFLAGS:
-+ case SIOCSIFFLAGS:
-+ case SIOCGIFCONF:
-+ case SIOCGIFMETRIC:
-+ case SIOCSIFMETRIC:
-+ case SIOCGIFMEM:
-+ case SIOCSIFMEM:
-+ case SIOCGIFMTU:
-+ case SIOCSIFMTU:
-+ case SIOCSIFLINK:
-+ case SIOCGIFHWADDR:
-+ case SIOCSIFHWADDR:
-+ case SIOCSIFMAP:
-+ case SIOCGIFMAP:
-+ case SIOCSIFSLAVE:
-+ case SIOCGIFSLAVE:
-+ case SIOCGIFINDEX:
-+ case SIOCGIFNAME:
-+ case SIOCGIFCOUNT:
-+ case SIOCSIFHWBROADCAST:
-+ return(dev_ioctl(cmd,(void *) arg));
-+
-+ default:
-+ return -EOPNOTSUPP;
-+ }
-+
-+ return 0;
-+}
-+
-+/* ************************************* */
-+
-+static struct proto_ops ring_ops = {
-+ .family = PF_RING,
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+ .owner = THIS_MODULE,
-+#endif
-+
-+ /* Operations that make no sense on ring sockets. */
-+ .connect = sock_no_connect,
-+ .socketpair = sock_no_socketpair,
-+ .accept = sock_no_accept,
-+ .getname = sock_no_getname,
-+ .listen = sock_no_listen,
-+ .shutdown = sock_no_shutdown,
-+ .sendpage = sock_no_sendpage,
-+ .sendmsg = sock_no_sendmsg,
-+ .getsockopt = sock_no_getsockopt,
-+
-+ /* Now the operations that really occur. */
-+ .release = ring_release,
-+ .bind = ring_bind,
-+ .mmap = ring_mmap,
-+ .poll = ring_poll,
-+ .setsockopt = ring_setsockopt,
-+ .ioctl = ring_ioctl,
-+ .recvmsg = ring_recvmsg,
-+};
-+
-+/* ************************************ */
-+
-+static struct net_proto_family ring_family_ops = {
-+ .family = PF_RING,
-+ .create = ring_create,
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+ .owner = THIS_MODULE,
-+#endif
-+};
-+
-+// BD: API changed in 2.6.12, ref:
-+// http://svn.clkao.org/svnweb/linux/revision/?rev=28201
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,11))
-+static struct proto ring_proto = {
-+ .name = "PF_RING",
-+ .owner = THIS_MODULE,
-+ .obj_size = sizeof(struct sock),
-+};
-+#endif
-+
-+/* ************************************ */
-+
-+static void __exit ring_exit(void)
-+{
-+ struct list_head *ptr;
-+ struct ring_element *entry;
-+
-+ for(ptr = ring_table.next; ptr != &ring_table; ptr = ptr->next) {
-+ entry = list_entry(ptr, struct ring_element, list);
-+ kfree(entry);
-+ }
-+
-+ while(ring_cluster_list != NULL) {
-+ struct ring_cluster *next = ring_cluster_list->next;
-+ kfree(ring_cluster_list);
-+ ring_cluster_list = next;
-+ }
-+
-+ set_skb_ring_handler(NULL);
-+ set_buffer_ring_handler(NULL);
-+ sock_unregister(PF_RING);
-+
-+ printk("PF_RING shut down.\n");
-+}
-+
-+/* ************************************ */
-+
-+static int __init ring_init(void)
-+{
-+ printk("Welcome to PF_RING %s\n(C) 2004 L.Deri <deri@ntop.org>\n",
-+ RING_VERSION);
-+
-+ INIT_LIST_HEAD(&ring_table);
-+ ring_cluster_list = NULL;
-+
-+ sock_register(&ring_family_ops);
-+
-+ set_skb_ring_handler(skb_ring_handler);
-+ set_buffer_ring_handler(buffer_ring_handler);
-+
-+ if(get_buffer_ring_handler() != buffer_ring_handler) {
-+ printk("PF_RING: set_buffer_ring_handler FAILED\n");
-+
-+ set_skb_ring_handler(NULL);
-+ set_buffer_ring_handler(NULL);
-+ sock_unregister(PF_RING);
-+ return -1;
-+ } else {
-+ printk("PF_RING: bucket length %d bytes\n", bucket_len);
-+ printk("PF_RING: ring slots %d\n", num_slots);
-+ printk("PF_RING: sample rate %d [1=no sampling]\n", sample_rate);
-+ printk("PF_RING: capture TX %s\n",
-+ enable_tx_capture ? "Yes [RX+TX]" : "No [RX only]");
-+ printk("PF_RING: transparent mode %s\n",
-+ transparent_mode ? "Yes" : "No");
-+
-+ printk("PF_RING initialized correctly.\n");
-+ return 0;
-+ }
-+}
-+
-+module_init(ring_init);
-+module_exit(ring_exit);
-+MODULE_LICENSE("GPL");
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+MODULE_ALIAS_NETPROTO(PF_RING);
-+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-06 17:45:42 +0000