Author: cieciwa Date: Thu Sep 15 08:04:30 2005 GMT
Module: SOURCES Tag: LINUX_2_6
---- Log message:
- [extra] ipp2p - kernel and iptables patch.
---- Files affected:
SOURCES:
linux-2.6-nf-ipp2p.patch (NONE -> 1.1.2.1) (NEW), iptables-nf-ipp2p.patch
(NONE -> 1.1.2.1) (NEW)
---- Diffs:
================================================================
Index: SOURCES/linux-2.6-nf-ipp2p.patch
diff -u /dev/null SOURCES/linux-2.6-nf-ipp2p.patch:1.1.2.1
--- /dev/null Thu Sep 15 10:04:30 2005
+++ SOURCES/linux-2.6-nf-ipp2p.patch Thu Sep 15 10:04:25 2005
@@ -0,0 +1,994 @@
+ include/linux/netfilter_ipv4/ipt_ipp2p.h | 29
+ net/ipv4/netfilter/Kconfig | 10
+ net/ipv4/netfilter/Makefile | 1
+ net/ipv4/netfilter/ipt_ipp2p.c | 927
+++++++++++++++++++++++++++++++
+ 4 files changed, 967 insertions(+)
+
+diff -Nur --exclude '*.orig'
linux-2.6.13.1.org/include/linux/netfilter_ipv4/ipt_ipp2p.h
linux-2.6.13.1/include/linux/netfilter_ipv4/ipt_ipp2p.h
+--- linux-2.6.13.1.org/include/linux/netfilter_ipv4/ipt_ipp2p.h
1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.13.1/include/linux/netfilter_ipv4/ipt_ipp2p.h 2005-06-29
09:40:30.000000000 +0200
+@@ -0,0 +1,29 @@
++#ifndef __IPT_IPP2P_H
++#define __IPT_IPP2P_H
++#define IPP2P_VERSION "0.8.0_rc3"
++
++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 -Nur --exclude '*.orig' linux-2.6.13.1.org/net/ipv4/netfilter/Kconfig
linux-2.6.13.1/net/ipv4/netfilter/Kconfig
+--- linux-2.6.13.1.org/net/ipv4/netfilter/Kconfig 2005-09-10
04:42:58.000000000 +0200
++++ linux-2.6.13.1/net/ipv4/netfilter/Kconfig 2005-09-15 09:46:53.000000000
+0200
+@@ -692,5 +692,15 @@
+ Allows altering the ARP packet payload: source and destination
+ hardware and network addresses.
+
++config IP_NF_MATCH_IPP2P
++ tristate 'IPP2P match support'
++ depends on IP_NF_IPTABLES
++ help
++ This option makes possible to match some P2P packets
++ therefore helps controlling such traffic.
++
++ If you want to compile it as a module, say M here and read
++ <file:Documentation/modules.txt>. If unsure, say `N'.
++
+ endmenu
+
+diff -Nur --exclude '*.orig' linux-2.6.13.1.org/net/ipv4/netfilter/Makefile
linux-2.6.13.1/net/ipv4/netfilter/Makefile
+--- linux-2.6.13.1.org/net/ipv4/netfilter/Makefile 2005-09-10
04:42:58.000000000 +0200
++++ linux-2.6.13.1/net/ipv4/netfilter/Makefile 2005-09-15 09:46:53.000000000
+0200
+@@ -0,0 +0,1 @@
++obj-$(CONFIG_IP_NF_MATCH_IPP2P) += ipt_ipp2p.o
+diff -Nur --exclude '*.orig' linux-2.6.13.1.org/net/ipv4/netfilter/ipt_ipp2p.c
linux-2.6.13.1/net/ipv4/netfilter/ipt_ipp2p.c
+--- linux-2.6.13.1.org/net/ipv4/netfilter/ipt_ipp2p.c 1970-01-01
01:00:00.000000000 +0100
++++ linux-2.6.13.1/net/ipv4/netfilter/ipt_ipp2p.c 2005-09-15
09:51:59.000000000 +0200
+@@ -0,0 +1,927 @@
++#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 <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/Klaus Degner <[EMAIL PROTECTED]>");
++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 == 10 + x* 16 byte
hashes */
++ case 0x9a: if ( ( packet_len - 10) % 16 == 0) return ((IPP2P_EDK * 100)
+ 50);
++ /* e3 96 xx yy zz kk | size == 14 | server status
request */
++ case 0x96: if (packet_len == 14) return ((IPP2P_EDK * 100) + 51);
++ /* e3 94 | size is 30, 50, 70, 90,...*/
++ case 0x94: if ((packet_len-10) % 20 == 0) return ((IPP2P_EDK * 100) +
52);
++ /* 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) + 53);
++ /* 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) + 54);
++ /* c5 92 | size == 10 (8+2) -- file not found */
++ case 0x92: if (packet_len == 10) return ((IPP2P_EDK * 100) + 55);
++ /* c5 93 | size == 10 (8+2) -- queue full */
++ case 0x93: if (packet_len == 10) return ((IPP2P_EDK * 100) + 56);
++ }
++ }
++
++ case 0xe4: { /*kad*/
++ switch (t[1]) {
++ /* e4 50 | size == 12 */
++ case 0x50: if (packet_len == 12) return ((IPP2P_EDK * 100) + 57);
++ /* e4 58 | size == 14 */
++ case 0x58: if ((packet_len == 14) && (t[2] != 0x00)) return
((IPP2P_EDK * 100) + 58);
++ /* e4 59 | size == 10 */
++ case 0x59: if (packet_len == 10) return ((IPP2P_EDK * 100) + 59);
++ /* e4 30 .. | t[18] == 0x01 | size > 26 | --> search */
++ case 0x30: if ((packet_len > 26) && (t[18] == 0x01)) return
((IPP2P_EDK * 100) + 60);
++ /* e4 28 .. 00 | t[68] == 0x00 | size > 76 */
++ case 0x28: if ((packet_len > 76) && (t[68] == 0x00)) return
((IPP2P_EDK * 100) + 61);
++ /* e4 20 .. | size == 43 */
++ case 0x20: if ((packet_len == 43) && (t[2] != 0x00) && (t[34] !=
0x00)) return ((IPP2P_EDK * 100) + 62);
++ /* e4 00 .. 00 | size == 35 ? */
++ case 0x00: if ((packet_len == 35) && (t[26] == 0x00)) return
((IPP2P_EDK * 100) + 63);
++ /* e4 10 .. 00 | size == 35 ? */
++ case 0x10: if ((packet_len == 35) && (t[26] == 0x00)) return
((IPP2P_EDK * 100) + 64);
++ /* e4 18 .. 00 | size == 35 ? */
++ case 0x18: if ((packet_len == 35) && (t[26] == 0x00)) return
((IPP2P_EDK * 100) + 65);
++ /* 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) + 66);
++ /* e4 52 .. | size = 44 */
++ case 0x52: if (packet_len == 44 )return ((IPP2P_EDK * 100) + 67);
++ }
++ }
++ } /* end of switch (t[0]) */
++
++ return 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) + 51);
++ if (memcmp(t, "GNUTELLA ", 9) == 0) return ((IPP2P_GNU * 100) + 52);
++ 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 +50);
++ }
++
++ return 0;
++}/*udp_search_kazaa*/
++
++/*Search for UDP DirectConnect commands*/
++int
++udp_search_directconnect (unsigned char *haystack, int packet_len)
++{
++ unsigned char *t = haystack;
++ if ((*(t + 8) == 0x24) && (*(t + packet_len - 1) == 0x7c)) {
++ t+=8;
++ if (memcmp(t, "SR ", 3) == 0) return ((IPP2P_DC *
100) + 60);
++ if (memcmp(t, "Ping ", 5) == 0) return ((IPP2P_DC *
100) + 61);
++ }
++ return 0;
++}/*udp_search_directconnect*/
++
++
++
++/*Search for UDP BitTorrent commands*/
++int
++udp_search_bit (unsigned char *haystack, int packet_len)
++{
++ switch(packet_len)
++ {
++ case 24:
++ /* ^ 00 00 04 17 27 10 19 80 */
++ if ((ntohl(get_u32(haystack, 8)) == 0x00000417) &&
(ntohl(get_u32(haystack, 12)) == 0x27101980))
++ return (IPP2P_BIT * 100 + 50);
++ break;
++ case 44:
++ if (get_u32(haystack, 16) == __constant_htonl(0x00000400) &&
get_u32(haystack, 36) == __constant_htonl(0x00000104))
++ return (IPP2P_BIT * 100 + 51);
++ if (get_u32(haystack, 16) == __constant_htonl(0x00000400))
++ return (IPP2P_BIT * 100 + 61);
++ break;
++ case 65:
++ if (get_u32(haystack, 16) == __constant_htonl(0x00000404) &&
get_u32(haystack, 36) == __constant_htonl(0x00000104))
++ return (IPP2P_BIT * 100 + 52);
++ if (get_u32(haystack, 16) == __constant_htonl(0x00000404))
++ return (IPP2P_BIT * 100 + 62);
++ break;
++ case 67:
++ if (get_u32(haystack, 16) == __constant_htonl(0x00000406) &&
get_u32(haystack, 36) == __constant_htonl(0x00000104))
++ return (IPP2P_BIT * 100 + 53);
++ if (get_u32(haystack, 16) == __constant_htonl(0x00000406))
++ return (IPP2P_BIT * 100 + 63);
++ break;
++ case 211:
++ if (get_u32(haystack, 8) == __constant_htonl(0x00000405))
++ return (IPP2P_BIT * 100 + 54);
++ break;
++ case 29:
++ if ((get_u32(haystack, 8) == __constant_htonl(0x00000401)))
++ return (IPP2P_BIT * 100 + 55);
++ break;
++ default:
++ /* this packet doe not have a constant size */
++ if (get_u32(haystack, 16) == __constant_htonl(0x00000402) &&
get_u32(haystack, 36) == __constant_htonl(0x00000104))
++ return (IPP2P_BIT * 100 + 56);
++ break;
++ }
++
++ /* some extra-bitcomet rules:
++ * "d1:" [a|r] "d2:id20:"
++ */
++ if (packet_len > 30 && get_u8(haystack, 8) == 'd' && get_u8(haystack, 9)
== '1' && get_u8(haystack, 10) == ':' )
++ {
++ if (get_u8(haystack, 11) == 'a' || get_u8(haystack, 11) == 'r')
++ {
++ if (memcmp(haystack+12,"d2:id20:",8)==0)
++ return (IPP2P_BIT * 100 + 57);
++ }
++ }
++ return 0;
++}/*udp_search_bit*/
++
++
++
++/*Search for Ares commands*/
++//#define IPP2P_DEBUG_ARES
++
++int
++search_ares (unsigned char *haystack, int packet_len, int head_len)
++{
++ const unsigned char *t = haystack + head_len;
++
++ /* all ares packets start with */
++ if (t[1] == 0 && (packet_len - head_len - t[0]) == 3)
++ {
++ const u16 size=packet_len - head_len;
++ switch (t[2])
++ {
++ case 0x5a:
++ /* ares connect */
++ if ( size == 6 && t[5] == 0x05 ) return
((IPP2P_ARES * 100) + 1);
++ break;
++ case 0x09:
++ /* ares search, min 3 chars --> 14 bytes
++ * lets define a search can be up to 30 chars
--> max 34 bytes
++ */
++ if ( size >= 14 && size <= 34 ) return
((IPP2P_ARES * 100) + 1);
++ break;
++#ifdef IPP2P_DEBUG_ARES
++ default:
++ printk(KERN_DEBUG "Unknown Ares command %x recognized,
len: %u \n", (unsigned int) t[2],size);
++#endif /* IPP2P_DEBUG_ARES */
++ }
++ }
++
++#if 0
++ /* found connect packet: 03 00 5a 04 03 05 */
++ /* new version ares 1.8: 03 00 5a xx xx 05 */
++ if ((packet_len - head_len) == 6){ /* possible connect command*/
++ if ((t[0] == 0x03) && (t[1] == 0x00) && (t[2] == 0x5a) && (t[5] ==
0x05))
++ return ((IPP2P_ARES * 100) + 1);
++ }
++ 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);
++ }
++ }
++#endif
++
++ 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;
++//#define IPP2P_DEBUG_SOUL
++ /* match: xx xx xx xx | xx = sizeof(payload) - 4 */
++ if (get_u32(t, 0) == (packet_len - head_len - 4)){
++ const __u32 m=get_u32(t, 4);
++ /* match 00 yy yy 00, yy can be everything */
++ if ( get_u8(t, 4) == 0x00 && get_u8(t, 7) == 0x00 )
++ {
++#ifdef IPP2P_DEBUG_SOUL
++ printk(KERN_DEBUG "0: Soulseek command 0x%x recognized\n",get_u32(t,
4));
++#endif /* IPP2P_DEBUG_SOUL */
++ return ((IPP2P_SOUL * 100) + 1);
++ }
++
++ /* next match: 01 yy 00 00 | yy can be everything */
++ if ( get_u8(t, 4) == 0x01 && get_u16(t, 6) == 0x0000 )
++ {
++#ifdef IPP2P_DEBUG_SOUL
++ printk(KERN_DEBUG "1: Soulseek command 0x%x recognized\n",get_u16(t,
4));
++#endif /* IPP2P_DEBUG_SOUL */
++ return ((IPP2P_SOUL * 100) + 2);
++ }
++
++ /* other soulseek commandos are:
1-5,7,9,13-18,22,23,26,28,35-37,40-46,50,51,60,62-69,91,92,1001 */
++ /* try to do this in an intelligent way */
++ /* get all small commandos */
++ switch(m)
++ {
++ case 7:
++ case 9:
++ case 22:
++ case 23:
++ case 26:
++ case 28:
++ case 50:
++ case 51:
++ case 60:
++ case 91:
++ case 92:
++ case 1001:
++#ifdef IPP2P_DEBUG_SOUL
++ printk(KERN_DEBUG "2: Soulseek command 0x%x
recognized\n",get_u16(t, 4));
++#endif /* IPP2P_DEBUG_SOUL */
++ return ((IPP2P_SOUL * 100) + 3);
++ }
++
++ if (m > 0 && m < 6 )
++ {
++#ifdef IPP2P_DEBUG_SOUL
++ printk(KERN_DEBUG "3: Soulseek command 0x%x
recognized\n",get_u16(t, 4));
++#endif /* IPP2P_DEBUG_SOUL */
++ return ((IPP2P_SOUL * 100) + 4);
++ }
++ if (m > 12 && m < 19 )
++ {
++#ifdef IPP2P_DEBUG_SOUL
++ printk(KERN_DEBUG "4: Soulseek command 0x%x
recognized\n",get_u16(t, 4));
++#endif /* IPP2P_DEBUG_SOUL */
++ return ((IPP2P_SOUL * 100) + 5);
++ }
++
++ if (m > 34 && m < 38 )
++ {
++#ifdef IPP2P_DEBUG_SOUL
++ printk(KERN_DEBUG "5: Soulseek command 0x%x
recognized\n",get_u16(t, 4));
++#endif /* IPP2P_DEBUG_SOUL */
++ return ((IPP2P_SOUL * 100) + 6);
++ }
++
++ if (m > 39 && m < 47 )
++ {
++#ifdef IPP2P_DEBUG_SOUL
++ printk(KERN_DEBUG "6: Soulseek command 0x%x
recognized\n",get_u16(t, 4));
++#endif /* IPP2P_DEBUG_SOUL */
++ return ((IPP2P_SOUL * 100) + 7);
++ }
++
++ if (m > 61 && m < 70 )
++ {
++#ifdef IPP2P_DEBUG_SOUL
++ printk(KERN_DEBUG "7: Soulseek command 0x%x
recognized\n",get_u16(t, 4));
++#endif /* IPP2P_DEBUG_SOUL */
++ return ((IPP2P_SOUL * 100) + 8);
++ }
++
++#ifdef IPP2P_DEBUG_SOUL
++ printk(KERN_DEBUG "unknown SOULSEEK command: 0x%x, first 16 bit: 0x%x,
first 8 bit: 0x%x ,soulseek ???\n",get_u32(t, 4),get_u16(t, 4) >> 16,get_u8(t,
4) >> 24);
++#endif /* IPP2P_DEBUG_SOUL */
++ }
++
++ /* match 14 00 00 00 01 yy 00 00 00 STRING(YY) 01 00 00 00 00 46|50 00
00 00 00 */
++ /* without size at the beginning !!! */
++ if ( get_u32(t, 0) == 0x14 && get_u8(t, 4) == 0x01 )
++ {
++ __u32 y=get_u32(t, 5);
++ /* we need 19 chars + string */
++ if ( (y + 19) <= (packet_len - head_len) )
++ {
++ __u8 *w=t+9+y;
++ if (get_u32(w, 0) == 0x01 && ( get_u16(w, 4) == 0x4600
|| get_u16(w, 4) == 0x5000) && get_u32(w, 6) == 0x00);
++#ifdef IPP2P_DEBUG_SOUL
++ printk(KERN_DEBUG "Soulssek special client command
recognized\n");
++#endif /* IPP2P_DEBUG_SOUL */
++ return ((IPP2P_SOUL * 100) + 9);
++ }
++ }
++ 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)
++{
++ const unsigned char *t = haystack+head_len;
++
++ /* test for match 0x13+"BitTorrent protocol" */
++ if (t[0] == 0x13)
++ {
++ if (memcmp(t+1, "BitTorrent protocol", 19) == 0) return (IPP2P_BIT *
100);
++ }
++
++ /* get tracker commandos, all starts with GET /
++ * then it can follow: scrape| announce
++ * and then ?hash_info=
++ */
++ if (memcmp(t,"GET /",5) == 0)
++ {
++ /* message scrape */
++ if ( memcmp(t+5,"scrape?info_hash=",17)==0 ) return (IPP2P_BIT * 100 +
1);
++ /* message announce */
++ if ( memcmp(t+5,"announce?info_hash=",19)==0 ) return (IPP2P_BIT * 100
+ 2);
++ }
++ 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)
<<Diff was trimmed, longer than 597 lines>>
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