diff options
Diffstat (limited to 'target/linux/linux-2.4/patches/generic/101-netfilter_ipp2p.patch')
-rw-r--r-- | target/linux/linux-2.4/patches/generic/101-netfilter_ipp2p.patch | 720 |
1 files changed, 0 insertions, 720 deletions
diff --git a/target/linux/linux-2.4/patches/generic/101-netfilter_ipp2p.patch b/target/linux/linux-2.4/patches/generic/101-netfilter_ipp2p.patch deleted file mode 100644 index 1314ae4fec..0000000000 --- a/target/linux/linux-2.4/patches/generic/101-netfilter_ipp2p.patch +++ /dev/null @@ -1,720 +0,0 @@ -diff -urN linux-2.4.29.old/include/linux/netfilter_ipv4/ipt_ipp2p.h linux-2.4.29/include/linux/netfilter_ipv4/ipt_ipp2p.h ---- linux-2.4.29.old/include/linux/netfilter_ipv4/ipt_ipp2p.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.4.29/include/linux/netfilter_ipv4/ipt_ipp2p.h 2005-03-12 00:44:17.000000000 +0100 -@@ -0,0 +1,29 @@ -+#ifndef __IPT_IPP2P_H -+#define __IPT_IPP2P_H -+#define IPP2P_VERSION "0.7.4" -+ -+struct ipt_p2p_info { -+ int cmd; -+ int debug; -+}; -+ -+#endif //__IPT_IPP2P_H -+ -+#define SHORT_HAND_IPP2P 1 /* --ipp2p switch*/ -+#define SHORT_HAND_DATA 4 /* --ipp2p-data switch*/ -+#define SHORT_HAND_NONE 5 /* no short hand*/ -+ -+#define IPP2P_EDK 2 -+#define IPP2P_DATA_KAZAA 8 -+#define IPP2P_DATA_EDK 16 -+#define IPP2P_DATA_DC 32 -+#define IPP2P_DC 64 -+#define IPP2P_DATA_GNU 128 -+#define IPP2P_GNU 256 -+#define IPP2P_KAZAA 512 -+#define IPP2P_BIT 1024 -+#define IPP2P_APPLE 2048 -+#define IPP2P_SOUL 4096 -+#define IPP2P_WINMX 8192 -+#define IPP2P_ARES 16384 -+ -diff -urN linux-2.4.29.old/net/ipv4/netfilter/Config.in linux-2.4.29/net/ipv4/netfilter/Config.in ---- linux-2.4.29.old/net/ipv4/netfilter/Config.in 2005-03-12 00:40:38.000000000 +0100 -+++ linux-2.4.29/net/ipv4/netfilter/Config.in 2005-03-12 00:42:57.000000000 +0100 -@@ -26,6 +26,7 @@ - dep_tristate ' TOS match support' CONFIG_IP_NF_MATCH_TOS $CONFIG_IP_NF_IPTABLES - dep_tristate ' recent match support' CONFIG_IP_NF_MATCH_RECENT $CONFIG_IP_NF_IPTABLES - dep_tristate ' ECN match support' CONFIG_IP_NF_MATCH_ECN $CONFIG_IP_NF_IPTABLES -+ dep_tristate ' peer to peer traffic match support' CONFIG_IP_NF_MATCH_IPP2P $CONFIG_IP_NF_IPTABLES - - dep_tristate ' DSCP match support' CONFIG_IP_NF_MATCH_DSCP $CONFIG_IP_NF_IPTABLES - -diff -urN linux-2.4.29.old/net/ipv4/netfilter/ipt_ipp2p.c linux-2.4.29/net/ipv4/netfilter/ipt_ipp2p.c ---- linux-2.4.29.old/net/ipv4/netfilter/ipt_ipp2p.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.4.29/net/ipv4/netfilter/ipt_ipp2p.c 2005-03-12 00:44:02.000000000 +0100 -@@ -0,0 +1,661 @@ -+#if defined(MODVERSIONS) -+#include <linux/modversions.h> -+#endif -+#include <linux/module.h> -+#include <linux/netfilter_ipv4/ip_tables.h> -+#include <linux/version.h> -+#include <linux/netfilter_ipv4/ipt_ipp2p.h> -+//#include "ipt_ipp2p.h" -+#include <net/tcp.h> -+#include <net/udp.h> -+ -+#define get_u8(X,O) (*(__u8 *)(X + O)) -+#define get_u16(X,O) (*(__u16 *)(X + O)) -+#define get_u32(X,O) (*(__u32 *)(X + O)) -+ -+MODULE_AUTHOR("Eicke Friedrich <ipp2p@ipp2p.org>"); -+MODULE_DESCRIPTION("An extension to iptables to identify P2P traffic."); -+MODULE_LICENSE("GPL"); -+ -+ -+/*Search for UDP eDonkey/eMule/Kad commands*/ -+int -+udp_search_edk (unsigned char *haystack, int packet_len) -+{ -+ unsigned char *t = haystack; -+ t += 8; -+ -+ switch (t[0]) { -+ case 0xe3: { /*edonkey*/ -+ switch (t[1]) { -+ /* e3 9a + 16Bytes Hash | size == 26 */ -+ case 0x9a: if (packet_len == 26) return ((IPP2P_EDK * 100) + 1); -+ /* e3 96 xx yy zz kk | size == 14 | server status request */ -+ case 0x96: if (packet_len == 14) return ((IPP2P_EDK * 100) + 2); -+ /* e3 a2 | size == 10 or 14 <-- recheck*/ -+ } -+ } -+ -+ case 0xc5: { /*emule*/ -+ switch (t[1]) { -+ /* c5 91 xx yy | size == 12 (8+4) | xx != 0x00 -- xx yy queue rating */ -+ case 0x91: if ((packet_len == 12) && (t[2] != 0x00)) return ((IPP2P_EDK * 100) + 3); -+ /* c5 90 xx .. yy | size == 26 (8+2+16) | xx .. yy == hash -- file ping */ -+ case 0x90: if ((packet_len == 26) && (t[2] != 0x00)) return ((IPP2P_EDK * 100) + 4); -+ /* c5 92 | size == 10 (8+2) -- file not found */ -+ case 0x92: if (packet_len == 10) return ((IPP2P_EDK * 100) + 5); -+ /* c5 93 | size == 10 (8+2) -- queue full */ -+ case 0x93: if (packet_len == 10) return ((IPP2P_EDK * 100) + 6); -+ } -+ } -+ -+ case 0xe4: { /*kad*/ -+ switch (t[1]) { -+ /* e4 50 | size == 12 */ -+ case 0x50: if (packet_len == 12) return ((IPP2P_EDK * 100) + 7); -+ /* e4 58 | size == 14 */ -+ case 0x58: if ((packet_len == 14) && (t[2] != 0x00)) return ((IPP2P_EDK * 100) + 8); -+ /* e4 59 | size == 10 */ -+ case 0x59: if (packet_len == 10) return ((IPP2P_EDK * 100) + 9); -+ /* e4 30 .. | t[18] == 0x01 | size > 26 | --> search */ -+ case 0x30: if ((packet_len > 26) && (t[18] == 0x01)) return ((IPP2P_EDK * 100) + 10); -+ /* e4 28 .. 00 | t[68] == 0x00 | size > 76 */ -+ case 0x28: if ((packet_len > 76) && (t[68] == 0x00)) return ((IPP2P_EDK * 100) + 11); -+ /* e4 20 .. | size == 43 */ -+ case 0x20: if ((packet_len == 43) && (t[2] != 0x00) && (t[34] != 0x00)) return ((IPP2P_EDK * 100) + 12); -+ /* e4 00 .. 00 | size == 35 ? */ -+ case 0x00: if ((packet_len == 35) && (t[26] == 0x00)) return ((IPP2P_EDK * 100) + 13); -+ /* e4 10 .. 00 | size == 35 ? */ -+ case 0x10: if ((packet_len == 35) && (t[26] == 0x00)) return ((IPP2P_EDK * 100) + 14); -+ /* e4 18 .. 00 | size == 35 ? */ -+ case 0x18: if ((packet_len == 35) && (t[26] == 0x00)) return ((IPP2P_EDK * 100) + 15); -+ /* e4 40 .. | t[18] == 0x01 | t[19] == 0x00 | size > 40 */ -+ case 0x40: if ((packet_len > 40) && (t[18] == 0x01) && (t[19] == 0x00)) return ((IPP2P_EDK * 100) + 16); -+ } -+ } -+ -+ default: return 0; -+ } /* end of switch (t[0]) */ -+}/*udp_search_edk*/ -+ -+ -+/*Search for UDP Gnutella commands*/ -+int -+udp_search_gnu (unsigned char *haystack, int packet_len) -+{ -+ unsigned char *t = haystack; -+ t += 8; -+ -+ if (memcmp(t, "GND", 3) == 0) return ((IPP2P_GNU * 100) + 1); -+ if (memcmp(t, "GNUTELLA ", 9) == 0) return ((IPP2P_GNU * 100) + 2); -+ return 0; -+}/*udp_search_gnu*/ -+ -+ -+/*Search for UDP KaZaA commands*/ -+int -+udp_search_kazaa (unsigned char *haystack, int packet_len) -+{ -+ unsigned char *t = haystack; -+ -+ if (t[packet_len-1] == 0x00){ -+ t += (packet_len - 6); -+ if (memcmp(t, "KaZaA", 5) == 0) return (IPP2P_KAZAA * 100); -+ } -+ return 0; -+}/*udp_search_kazaa*/ -+ -+ -+/*Search for UDP BitTorrent commands*/ -+int -+udp_search_bit (unsigned char *haystack, int packet_len) -+{ -+ unsigned char *t = haystack; -+ -+ /* packet_len has to be 24 */ -+ if (packet_len != 24) return 0; -+ -+ t += 8; -+ -+ /* ^ 00 00 04 17 27 10 19 80 */ -+ if ((ntohl(get_u32(t, 0)) == 0x00000417) && (ntohl(get_u32(t, 4)) == 0x27101980)) return (IPP2P_BIT * 100); -+ -+ return 0; -+}/*udp_search_bit*/ -+ -+ -+ -+/*Search for Ares commands*/ -+int -+search_ares (unsigned char *haystack, int packet_len, int head_len) -+{ -+ unsigned char *t = haystack; -+ t += head_len; -+ -+ if ((packet_len - head_len) == 6){ /* possible connect command*/ -+ if ((t[0] == 0x03) && (t[1] == 0x00) && (t[2] == 0x5a) && (t[3] == 0x04) && (t[4] == 0x03) && (t[5] == 0x05)) -+ return ((IPP2P_ARES * 100) + 1); /* found connect packet: 03 00 5a 04 03 05 */ -+ } -+ if ((packet_len - head_len) == 60){ /* possible download command*/ -+ if ((t[59] == 0x0a) && (t[58] == 0x0a)){ -+ if (memcmp(t, "PUSH SHA1:", 10) == 0) /* found download command */ -+ return ((IPP2P_ARES * 100) + 2); -+ } -+ } -+ return 0; -+} /*search_ares*/ -+ -+ -+/*Search for SoulSeek commands*/ -+int -+search_soul (unsigned char *haystack, int packet_len, int head_len) -+{ -+ unsigned char *t = haystack; -+ t += head_len; -+ -+ if (get_u16(t, 0) == (packet_len - head_len - 4)){ -+ /* xx xx 00 00 yy zz 00 00 .. | xx = sizeof(payload) - 4 */ -+ if ((get_u16(t,2) == 0x0000) &&(t[4] != 0x00) && (get_u16(t,6) == 0x0000)) -+ return ((IPP2P_SOUL * 100) + 1); -+ } else { -+ /* 00 00 00 00 00 00 00 00 + sizeof(payload) == 8*/ -+ if (((packet_len - head_len) == 8) && (get_u32(t, 0) == 0x00000000) && (get_u32(t, 4) == 0x00000000)) -+ return ((IPP2P_SOUL * 100) + 2); -+ } -+ -+ /* 01 xx 00 00 00 yy .. zz 00 00 00 .. | xx == sizeof(nick) | yy .. zz == nick */ -+ if ((t[0] == 0x01) && (t[2] == 0x00) && (get_u16(t,3) == 0x0000) && ((packet_len - head_len) > ((get_u8(t,1))+6)) && -+ (t[(get_u8(t,1))+4] != 0x00) && (t[(get_u8(t,1))+5] == 0x01) && (t[(get_u8(t,1))+6] == 0x00)) -+ return ((IPP2P_SOUL * 100) + 3); -+ return 0; -+} -+ -+ -+/*Search for WinMX commands*/ -+int -+search_winmx (unsigned char *haystack, int packet_len, int head_len) -+{ -+ unsigned char *t = haystack; -+ int c; -+ t += head_len; -+ -+ if (((packet_len - head_len) == 4) && (memcmp(t, "SEND", 4) == 0)) return ((IPP2P_WINMX * 100) + 1); -+ if (((packet_len - head_len) == 3) && (memcmp(t, "GET", 3) == 0)) return ((IPP2P_WINMX * 100) + 2); -+ if (packet_len < (head_len + 10)) return 0; -+ -+ if ((memcmp(t, "SEND", 4) == 0) || (memcmp(t, "GET", 3) == 0)){ -+ c = head_len + 4; -+ t += 4; -+ while (c < packet_len - 5) { -+ if ((t[0] == 0x20) && (t[1] == 0x22)){ -+ c += 2; -+ t += 2; -+ while (c < packet_len - 2) { -+ if ((t[0] == 0x22) && (t[1] == 0x20)) return ((IPP2P_WINMX * 100) + 3); -+ t++; -+ c++; -+ } -+ } -+ t++; -+ c++; -+ } -+ } -+ return 0; -+} /*search_winmx*/ -+ -+ -+/*Search for appleJuice commands*/ -+int -+search_apple (unsigned char *haystack, int packet_len, int head_len) -+{ -+ unsigned char *t = haystack; -+ t += head_len; -+ -+ if ((memcmp(t, "ajprot", 6) == 0) && (t[6] == 0x0d) && (t[7] == 0x0a)) return (IPP2P_APPLE * 100); -+ -+ return 0; -+} -+ -+ -+/*Search for BitTorrent commands*/ -+int -+search_bittorrent (unsigned char *haystack, int packet_len, int head_len) -+{ -+ -+ unsigned char *t = haystack; -+ if (*(haystack+head_len) != 0x13) return 0; /*Bail out of first byte != 0x13*/ -+ -+ t += head_len + 1; -+ -+ if (memcmp(t, "BitTorrent protocol", 19) == 0) return (IPP2P_BIT * 100); -+ return 0; -+} -+ -+ -+ -+/*check for Kazaa get command*/ -+int -+search_kazaa (unsigned char *haystack, int packet_len, int head_len) -+{ -+ unsigned char *t = haystack; -+ -+ if (!((*(haystack + packet_len - 2) == 0x0d) && (*(haystack + packet_len - 1) == 0x0a))) return 0; -+ -+ t += head_len; -+ if (memcmp(t, "GET /.hash=", 11) == 0) -+ return (IPP2P_DATA_KAZAA * 100); -+ else -+ return 0; -+} -+ -+ -+/*check for gnutella get command*/ -+int -+search_gnu (unsigned char *haystack, int packet_len, int head_len) -+{ -+ unsigned char *t = haystack; -+ -+ if (!((*(haystack + packet_len - 2) == 0x0d) && (*(haystack + packet_len - 1) == 0x0a))) return 0; -+ -+ t += head_len; -+ if (memcmp(t, "GET /get/", 9) == 0) return ((IPP2P_DATA_GNU * 100) + 1); -+ if (memcmp(t, "GET /uri-res/", 13) == 0) return ((IPP2P_DATA_GNU * 100) + 2); -+ -+ return 0; -+} -+ -+ -+/*check for gnutella get commands and other typical data*/ -+int -+search_all_gnu (unsigned char *haystack, int packet_len, int head_len) -+{ -+ unsigned char *t = haystack; -+ int c; -+ -+ if (!((*(haystack + packet_len - 2) == 0x0d) && (*(haystack + packet_len - 1) == 0x0a))) return 0; -+ -+ t += head_len; -+ -+ if (memcmp(t, "GNUTELLA CONNECT/", 17) == 0) return ((IPP2P_GNU * 100) + 1); -+ if (memcmp(t, "GNUTELLA/", 9) == 0) return ((IPP2P_GNU * 100) + 2); -+ -+ if ((memcmp(t, "GET /get/", 9) == 0) || (memcmp(t, "GET /uri-res/", 13) == 0)) -+ { -+ c = head_len + 8; -+ t += 8; -+ while (c < packet_len - 22) { -+ if ((t[0] == 0x0d) && (t[1] == 0x0a)) { -+ t += 2; -+ c += 2; -+ if ((memcmp(t, "X-Gnutella-", 11) == 0) || (memcmp(t, "X-Queue:", 8) == 0)) return ((IPP2P_GNU * 100) + 3); -+ } else { -+ t++; -+ c++; -+ } -+ } -+ } -+ return 0; -+} -+ -+ -+/*check for KaZaA download commands and other typical data*/ -+int -+search_all_kazaa (unsigned char *haystack, int packet_len, int head_len) -+{ -+ unsigned char *t = haystack; -+ int c; -+ -+ if (!((*(haystack + packet_len - 2) == 0x0d) && (*(haystack + packet_len - 1) == 0x0a))) return 0; -+ -+ t += head_len; -+ if (memcmp(t, "GIVE ", 5) == 0) return ((IPP2P_KAZAA * 100) + 1); -+ -+ if (memcmp(t, "GET /", 5) == 0) { -+ c = head_len + 8; -+ t += 8; -+ while (c < packet_len - 22) { -+ if ((t[0] == 0x0d) && (t[1] == 0x0a)) { -+ t += 2; -+ c += 2; -+ if ( memcmp(t, "X-Kazaa-Username: ", 18) == 0 ) return ((IPP2P_KAZAA * 100) + 2); -+ if ( memcmp(t, "User-Agent: PeerEnabler/", 24) == 0 ) return ((IPP2P_KAZAA * 100) + 3); -+ } else { -+ t++; -+ c++; -+ } -+ } -+ } -+ -+ return 0; -+} -+ -+/*fast check for edonkey file segment transfer command*/ -+int -+search_edk (unsigned char *haystack, int packet_len, int head_len) -+{ -+ if (*(haystack+head_len) != 0xe3) -+ return 0; -+ else { -+ if (*(haystack+head_len+5) == 0x47) -+ return (IPP2P_DATA_EDK * 100); -+ else -+ return 0; -+ } -+} -+ -+ -+ -+/*intensive but slower search for some edonkey packets including size-check*/ -+int -+search_all_edk (unsigned char *haystack, int packet_len, int head_len) -+{ -+ unsigned char *t = haystack; -+ int cmd; -+ -+ if (*(haystack+head_len) == 0xd4) { -+ t += head_len; -+ cmd = get_u16(t, 1); -+ if (cmd == (packet_len - head_len - 5)) { -+ switch (t[5]) { -+ case 0x82: return ((IPP2P_EDK * 100) + 42); -+ case 0x15: return ((IPP2P_EDK * 100) + 43); -+ default: return 0; -+ } -+ } -+ return 0; -+ } -+ -+ -+ if (*(haystack+head_len) == 0xc5) { /*search for additional eMule packets*/ -+ t += head_len; -+ cmd = get_u16(t, 1); -+ -+ if (cmd == (packet_len - head_len - 5)) { -+ switch (t[5]) { -+ case 0x01: return ((IPP2P_EDK * 100) + 30); -+ case 0x02: return ((IPP2P_EDK * 100) + 31); -+ case 0x60: return ((IPP2P_EDK * 100) + 32); -+ case 0x81: return ((IPP2P_EDK * 100) + 33); -+ case 0x82: return ((IPP2P_EDK * 100) + 34); -+ case 0x85: return ((IPP2P_EDK * 100) + 35); -+ case 0x86: return ((IPP2P_EDK * 100) + 36); -+ case 0x87: return ((IPP2P_EDK * 100) + 37); -+ case 0x40: return ((IPP2P_EDK * 100) + 38); -+ case 0x92: return ((IPP2P_EDK * 100) + 39); -+ case 0x93: return ((IPP2P_EDK * 100) + 40); -+ case 0x12: return ((IPP2P_EDK * 100) + 41); -+ default: return 0; -+ } -+ } -+ -+ return 0; -+ } -+ -+ -+ if (*(haystack+head_len) != 0xe3) -+ return 0; -+ else { -+ t += head_len; -+ cmd = get_u16(t, 1); -+ if (cmd == (packet_len - head_len - 5)) { -+ switch (t[5]) { -+ case 0x01: return ((IPP2P_EDK * 100) + 1); /*Client: hello or Server:hello*/ -+ case 0x50: return ((IPP2P_EDK * 100) + 2); /*Client: file status*/ -+ case 0x16: return ((IPP2P_EDK * 100) + 3); /*Client: search*/ -+ case 0x58: return ((IPP2P_EDK * 100) + 4); /*Client: file request*/ -+ case 0x48: return ((IPP2P_EDK * 100) + 5); /*???*/ -+ case 0x54: return ((IPP2P_EDK * 100) + 6); /*???*/ -+ case 0x47: return ((IPP2P_EDK * 100) + 7); /*Client: file segment request*/ -+ case 0x46: return ((IPP2P_EDK * 100) + 8); /*Client: download segment*/ -+ case 0x4c: return ((IPP2P_EDK * 100) + 9); /*Client: Hello-Answer*/ -+ case 0x4f: return ((IPP2P_EDK * 100) + 10); /*Client: file status request*/ -+ case 0x59: return ((IPP2P_EDK * 100) + 11); /*Client: file request answer*/ -+ case 0x65: return ((IPP2P_EDK * 100) + 12); /*Client: ???*/ -+ case 0x66: return ((IPP2P_EDK * 100) + 13); /*Client: ???*/ -+ case 0x51: return ((IPP2P_EDK * 100) + 14); /*Client: ???*/ -+ case 0x52: return ((IPP2P_EDK * 100) + 15); /*Client: ???*/ -+ case 0x4d: return ((IPP2P_EDK * 100) + 16); /*Client: ???*/ -+ case 0x5c: return ((IPP2P_EDK * 100) + 17); /*Client: ???*/ -+ case 0x38: return ((IPP2P_EDK * 100) + 18); /*Client: ???*/ -+ case 0x69: return ((IPP2P_EDK * 100) + 19); /*Client: ???*/ -+ case 0x19: return ((IPP2P_EDK * 100) + 20); /*Client: ???*/ -+ case 0x42: return ((IPP2P_EDK * 100) + 21); /*Client: ???*/ -+ case 0x34: return ((IPP2P_EDK * 100) + 22); /*Client: ???*/ -+ case 0x94: return ((IPP2P_EDK * 100) + 23); /*Client: ???*/ -+ case 0x1c: return ((IPP2P_EDK * 100) + 24); /*Client: ???*/ -+ case 0x6a: return ((IPP2P_EDK * 100) + 25); /*Client: ???*/ -+ default: return 0; -+ } -+ } else { -+ if (cmd > packet_len - head_len - 5) { -+ if ((t[3] == 0x00) && (t[4] == 0x00)) { -+ if (t[5] == 0x01) return ((IPP2P_EDK * 100) + 26); -+ if (t[5] == 0x4c) return ((IPP2P_EDK * 100) + 27); -+ } -+ return 0; -+ -+ } /*non edk packet*/ -+ if (t[cmd+5] == 0xe3) return ((IPP2P_EDK * 100) + 28);/*found another edk-command*/ -+ if (t[cmd+5] == 0xc5) return ((IPP2P_EDK * 100) + 29);/*found an emule-command*/ -+ return 0; -+ } -+ } -+} -+ -+ -+/*fast check for Direct Connect send command*/ -+int -+search_dc (unsigned char *haystack, int packet_len, int head_len) -+{ -+ unsigned char *t = haystack; -+ -+ if (*(haystack+head_len) != 0x24 ) -+ return 0; -+ else { -+ t += head_len + 1; -+ if (memcmp(t, "Send|", 5) == 0) -+ return (IPP2P_DATA_DC * 100); -+ else -+ return 0; -+ } -+ -+} -+ -+ -+/*intensive but slower check for all direct connect packets*/ -+int -+search_all_dc (unsigned char *haystack, int packet_len, int head_len) -+{ -+ unsigned char *t = haystack; -+ -+ if ((*(haystack + head_len) == 0x24) && (*(haystack + packet_len - 1) == 0x7c)) { -+ t += head_len + 1; -+ if (memcmp(t, "Lock ", 5) == 0) return ((IPP2P_DC * 100) + 1); /*hub: hello*/ -+ if (memcmp(t, "Key ", 4) == 0) return ((IPP2P_DC * 100) + 2); /*client: hello*/ -+ if (memcmp(t, "Hello ", 6) == 0) return ((IPP2P_DC * 100) + 3); /*hub:connected*/ -+ if (memcmp(t, "MyNick ", 7) == 0) return ((IPP2P_DC * 100) + 4); /*client-client: hello*/ -+ if (memcmp(t, "Search ", 7) == 0) return ((IPP2P_DC * 100) + 5); /*client: search*/ -+ if (memcmp(t, "Send", 4) == 0) return ((IPP2P_DC * 100) + 6); /*client: start download*/ -+ return 0; -+ } else -+ return 0; -+} -+ -+ -+static struct { -+ int command; -+ __u8 short_hand; /*for fucntions included in short hands*/ -+ int packet_len; -+ int (*function_name) (unsigned char *, int, int); -+} matchlist[] = { -+ {IPP2P_EDK,SHORT_HAND_IPP2P,40, &search_all_edk}, -+ {IPP2P_DATA_KAZAA,SHORT_HAND_DATA,200, &search_kazaa}, -+ {IPP2P_DATA_EDK,SHORT_HAND_DATA,60, &search_edk}, -+ {IPP2P_DATA_DC,SHORT_HAND_DATA,26, &search_dc}, -+ {IPP2P_DC,SHORT_HAND_IPP2P,25, search_all_dc}, -+ {IPP2P_DATA_GNU,SHORT_HAND_DATA,40, &search_gnu}, -+ {IPP2P_GNU,SHORT_HAND_IPP2P,35, &search_all_gnu}, -+ {IPP2P_KAZAA,SHORT_HAND_IPP2P,35, &search_all_kazaa}, -+ {IPP2P_BIT,SHORT_HAND_NONE,40, &search_bittorrent}, -+ {IPP2P_APPLE,SHORT_HAND_NONE,20, &search_apple}, -+ {IPP2P_SOUL,SHORT_HAND_NONE,25, &search_soul}, -+ {IPP2P_WINMX,SHORT_HAND_NONE,20, &search_winmx}, -+ {IPP2P_ARES,SHORT_HAND_NONE,25, &search_ares}, -+ {0,0,0,NULL} -+}; -+ -+ -+static struct { -+ int command; -+ __u8 short_hand; /*for fucntions included in short hands*/ -+ int packet_len; -+ int (*function_name) (unsigned char *, int); -+} udp_list[] = { -+ {IPP2P_KAZAA,SHORT_HAND_IPP2P,14, &udp_search_kazaa}, -+ {IPP2P_BIT,SHORT_HAND_NONE,23, &udp_search_bit}, -+ {IPP2P_GNU,SHORT_HAND_IPP2P,11, &udp_search_gnu}, -+ {IPP2P_EDK,SHORT_HAND_IPP2P,9, &udp_search_edk}, -+ {0,0,0,NULL} -+}; -+ -+ -+static int -+match(const struct sk_buff *skb, -+ const struct net_device *in, -+ const struct net_device *out, -+ const void *matchinfo, -+ int offset, -+ -+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) -+ const void *hdr, -+ u_int16_t datalen, -+#endif -+ -+ int *hotdrop) -+{ -+ const struct ipt_p2p_info *info = matchinfo; -+ unsigned char *haystack; -+ struct iphdr *ip = skb->nh.iph; -+ int p2p_result = 0, i = 0; -+ int head_len; -+ int hlen = ntohs(ip->tot_len)-(ip->ihl*4); /*hlen = packet-data length*/ -+ -+ /*must not be a fragment*/ -+ if (offset) { -+ if (info->debug) printk("IPP2P.match: offset found %i \n",offset); -+ return 0; -+ } -+ -+ /*make sure that skb is linear*/ -+ if(skb_is_nonlinear(skb)){ -+ if (info->debug) printk("IPP2P.match: nonlinear skb found\n"); -+ return 0; -+ } -+ -+ -+ haystack=(char *)ip+(ip->ihl*4); /*haystack = packet data*/ -+ -+ switch (ip->protocol){ -+ case IPPROTO_TCP: /*what to do with a TCP packet*/ -+ { -+ struct tcphdr *tcph = (void *) ip + ip->ihl * 4; -+ -+ if (tcph->fin) return 0; /*if FIN bit is set bail out*/ -+ if (tcph->syn) return 0; /*if SYN bit is set bail out*/ -+ if (tcph->rst) return 0; /*if RST bit is set bail out*/ -+ head_len = tcph->doff * 4; /*get TCP-Header-Size*/ -+ while (matchlist[i].command) { -+ if ((((info->cmd & matchlist[i].command) == matchlist[i].command) || -+ ((info->cmd & matchlist[i].short_hand) == matchlist[i].short_hand)) && -+ (hlen > matchlist[i].packet_len)) { -+ p2p_result = matchlist[i].function_name(haystack, hlen, head_len); -+ if (p2p_result) -+ { -+ if (info->debug) printk("IPP2P.debug:TCP-match: %i from: %u.%u.%u.%u:%i to: %u.%u.%u.%u:%i Length: %i\n", -+ p2p_result, NIPQUAD(ip->saddr),ntohs(tcph->source), NIPQUAD(ip->daddr),ntohs(tcph->dest),hlen); -+ return p2p_result; -+ } -+ } -+ i++; -+ } -+ return p2p_result; -+ } -+ -+ case IPPROTO_UDP: /*what to do with an UDP packet*/ -+ { -+ struct udphdr *udph = (void *) ip + ip->ihl * 4; -+ -+ while (udp_list[i].command){ -+ if ((((info->cmd & udp_list[i].command) == udp_list[i].command) || -+ ((info->cmd & udp_list[i].short_hand) == udp_list[i].short_hand)) && -+ (hlen > udp_list[i].packet_len)) { -+ p2p_result = udp_list[i].function_name(haystack, hlen); -+ if (p2p_result){ -+ if (info->debug) printk("IPP2P.debug:UDP-match: %i from: %u.%u.%u.%u:%i to: %u.%u.%u.%u:%i Length: %i\n", -+ p2p_result, NIPQUAD(ip->saddr),ntohs(udph->source), NIPQUAD(ip->daddr),ntohs(udph->dest),hlen); -+ return p2p_result; -+ } -+ } -+ i++; -+ } -+ return p2p_result; -+ } -+ -+ default: return 0; -+ } -+} -+ -+ -+ -+static int -+checkentry(const char *tablename, -+ const struct ipt_ip *ip, -+ void *matchinfo, -+ unsigned int matchsize, -+ unsigned int hook_mask) -+{ -+ /* Must specify -p tcp */ -+/* if (ip->proto != IPPROTO_TCP || (ip->invflags & IPT_INV_PROTO)) { -+ * printk("ipp2p: Only works on TCP packets, use -p tcp\n"); -+ * return 0; -+ * }*/ -+ return 1; -+} -+ -+ -+ -+ -+static struct ipt_match ipp2p_match = { -+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) -+ { NULL, NULL }, -+ "ipp2p", -+ &match, -+ &checkentry, -+ NULL, -+ THIS_MODULE -+#endif -+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) -+ .name = "ipp2p", -+ .match = &match, -+ .checkentry = &checkentry, -+ .me = THIS_MODULE, -+#endif -+}; -+ -+ -+static int __init init(void) -+{ -+ printk(KERN_INFO "IPP2P v%s loading\n", IPP2P_VERSION); -+ return ipt_register_match(&ipp2p_match); -+} -+ -+static void __exit fini(void) -+{ -+ ipt_unregister_match(&ipp2p_match); -+ printk(KERN_INFO "IPP2P v%s unloaded\n", IPP2P_VERSION); -+} -+ -+module_init(init); -+module_exit(fini); -+ -+ -diff -urN linux-2.4.29.old/net/ipv4/netfilter/Makefile linux-2.4.29/net/ipv4/netfilter/Makefile ---- linux-2.4.29.old/net/ipv4/netfilter/Makefile 2005-03-12 00:40:38.000000000 +0100 -+++ linux-2.4.29/net/ipv4/netfilter/Makefile 2005-03-12 00:42:57.000000000 +0100 -@@ -67,6 +67,7 @@ - obj-$(CONFIG_IP_NF_MATCH_LIMIT) += ipt_limit.o - obj-$(CONFIG_IP_NF_MATCH_MARK) += ipt_mark.o - obj-$(CONFIG_IP_NF_MATCH_MAC) += ipt_mac.o -+obj-$(CONFIG_IP_NF_MATCH_IPP2P) += ipt_ipp2p.o - - obj-$(CONFIG_IP_NF_MATCH_PKTTYPE) += ipt_pkttype.o - obj-$(CONFIG_IP_NF_MATCH_MULTIPORT) += ipt_multiport.o |