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Diffstat (limited to 'package/busybox/patches/241-udhcpc-oversized_packets.patch')
-rw-r--r--package/busybox/patches/241-udhcpc-oversized_packets.patch22
1 files changed, 12 insertions, 10 deletions
diff --git a/package/busybox/patches/241-udhcpc-oversized_packets.patch b/package/busybox/patches/241-udhcpc-oversized_packets.patch
index ef9e7f4be1..d83bf0b413 100644
--- a/package/busybox/patches/241-udhcpc-oversized_packets.patch
+++ b/package/busybox/patches/241-udhcpc-oversized_packets.patch
@@ -1,6 +1,8 @@
+diff --git a/networking/udhcp/packet.c b/networking/udhcp/packet.c
+index 2b7528c..94e53dc 100644
--- a/networking/udhcp/packet.c
+++ b/networking/udhcp/packet.c
-@@ -165,6 +165,11 @@ uint16_t FAST_FUNC udhcp_checksum(void *
+@@ -165,6 +165,11 @@ uint16_t FAST_FUNC udhcp_checksum(void *addr, int count)
return ~sum;
}
@@ -12,7 +14,7 @@
/* Construct a ip/udp header for a packet, send packet */
int FAST_FUNC udhcp_send_raw_packet(struct dhcp_packet *dhcp_pkt,
uint32_t source_nip, int source_port,
-@@ -173,10 +178,10 @@ int FAST_FUNC udhcp_send_raw_packet(stru
+@@ -173,10 +178,10 @@ int FAST_FUNC udhcp_send_raw_packet(struct dhcp_packet *dhcp_pkt,
{
struct sockaddr_ll dest_sll;
struct ip_udp_dhcp_packet packet;
@@ -24,7 +26,7 @@
fd = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
if (fd < 0) {
-@@ -185,8 +190,8 @@ int FAST_FUNC udhcp_send_raw_packet(stru
+@@ -185,8 +190,8 @@ int FAST_FUNC udhcp_send_raw_packet(struct dhcp_packet *dhcp_pkt,
}
memset(&dest_sll, 0, sizeof(dest_sll));
@@ -35,7 +37,7 @@
dest_sll.sll_family = AF_PACKET;
dest_sll.sll_protocol = htons(ETH_P_IP);
-@@ -199,36 +204,24 @@ int FAST_FUNC udhcp_send_raw_packet(stru
+@@ -199,36 +204,24 @@ int FAST_FUNC udhcp_send_raw_packet(struct dhcp_packet *dhcp_pkt,
goto ret_close;
}
@@ -56,14 +58,14 @@
packet.udp.source = htons(source_port);
packet.udp.dest = htons(dest_port);
- /* size, excluding IP header: */
-- packet.udp.len = htons(UPD_DHCP_SIZE - padding);
+- packet.udp.len = htons(UDP_DHCP_SIZE - padding);
- /* for UDP checksumming, ip.len is set to UDP packet len */
+ p_len += sizeof(packet.udp);
+ packet.udp.len = htons(p_len);
packet.ip.tot_len = packet.udp.len;
-- packet.udp.check = udhcp_checksum(&packet, IP_UPD_DHCP_SIZE - padding);
+- packet.udp.check = udhcp_checksum(&packet, IP_UDP_DHCP_SIZE - padding);
- /* but for sending, it is set to IP packet len */
-- packet.ip.tot_len = htons(IP_UPD_DHCP_SIZE - padding);
+- packet.ip.tot_len = htons(IP_UDP_DHCP_SIZE - padding);
+ p_len += sizeof(packet.ip);
+ packet.udp.check = udhcp_checksum(&packet, p_len);
+ packet.ip.tot_len = htons(p_len);
@@ -73,12 +75,12 @@
packet.ip.check = udhcp_checksum(&packet.ip, sizeof(packet.ip));
udhcp_dump_packet(dhcp_pkt);
-- result = sendto(fd, &packet, IP_UPD_DHCP_SIZE - padding, /*flags:*/ 0,
+- result = sendto(fd, &packet, IP_UDP_DHCP_SIZE - padding, /*flags:*/ 0,
+ result = sendto(fd, &packet, p_len, /*flags:*/ 0,
(struct sockaddr *) &dest_sll, sizeof(dest_sll));
msg = "sendto";
ret_close:
-@@ -246,7 +239,6 @@ int FAST_FUNC udhcp_send_kernel_packet(s
+@@ -246,7 +239,6 @@ int FAST_FUNC udhcp_send_kernel_packet(struct dhcp_packet *dhcp_pkt,
uint32_t dest_nip, int dest_port)
{
struct sockaddr_in client;
@@ -86,7 +88,7 @@
int fd;
int result = -1;
const char *msg;
-@@ -277,9 +269,7 @@ int FAST_FUNC udhcp_send_kernel_packet(s
+@@ -277,9 +269,7 @@ int FAST_FUNC udhcp_send_kernel_packet(struct dhcp_packet *dhcp_pkt,
}
udhcp_dump_packet(dhcp_pkt);