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1 | diff -Naur linux-2.6.27.19.org/include/linux/netfilter_ipv4/ipt_ipp2p.h linux-2.6.27.19/include/linux/netfilter_ipv4/ipt_ipp2p.h |
2 | --- linux-2.6.27.19.org/include/linux/netfilter_ipv4/ipt_ipp2p.h 1970-01-01 01:00:00.000000000 +0100 | |
3 | +++ linux-2.6.27.19/include/linux/netfilter_ipv4/ipt_ipp2p.h 2009-03-17 19:31:50.000000000 +0100 | |
4 | @@ -0,0 +1,31 @@ | |
5 | +#ifndef __IPT_IPP2P_H | |
6 | +#define __IPT_IPP2P_H | |
7 | +#define IPP2P_VERSION "0.8.2-pomng" | |
8 | + | |
9 | +struct ipt_p2p_info { | |
10 | + int cmd; | |
11 | + int debug; | |
12 | +}; | |
13 | + | |
14 | +#endif //__IPT_IPP2P_H | |
15 | + | |
16 | +#define SHORT_HAND_IPP2P 1 /* --ipp2p switch*/ | |
17 | +//#define SHORT_HAND_DATA 4 /* --ipp2p-data switch*/ | |
18 | +#define SHORT_HAND_NONE 5 /* no short hand*/ | |
19 | + | |
20 | +#define IPP2P_EDK (1 << 1) | |
21 | +#define IPP2P_DATA_KAZAA (1 << 2) | |
22 | +#define IPP2P_DATA_EDK (1 << 3) | |
23 | +#define IPP2P_DATA_DC (1 << 4) | |
24 | +#define IPP2P_DC (1 << 5) | |
25 | +#define IPP2P_DATA_GNU (1 << 6) | |
26 | +#define IPP2P_GNU (1 << 7) | |
27 | +#define IPP2P_KAZAA (1 << 8) | |
28 | +#define IPP2P_BIT (1 << 9) | |
29 | +#define IPP2P_APPLE (1 << 10) | |
30 | +#define IPP2P_SOUL (1 << 11) | |
31 | +#define IPP2P_WINMX (1 << 12) | |
32 | +#define IPP2P_ARES (1 << 13) | |
33 | +#define IPP2P_MUTE (1 << 14) | |
34 | +#define IPP2P_WASTE (1 << 15) | |
35 | +#define IPP2P_XDCC (1 << 16) | |
36 | diff -Naur linux-2.6.27.19.org/net/ipv4/netfilter/ipt_ipp2p.c linux-2.6.27.19/net/ipv4/netfilter/ipt_ipp2p.c | |
37 | --- linux-2.6.27.19.org/net/ipv4/netfilter/ipt_ipp2p.c 1970-01-01 01:00:00.000000000 +0100 | |
38 | +++ linux-2.6.27.19/net/ipv4/netfilter/ipt_ipp2p.c 2009-03-17 19:31:50.000000000 +0100 | |
39 | @@ -0,0 +1,911 @@ | |
40 | +#if defined(MODVERSIONS) | |
41 | +#include <linux/modversions.h> | |
42 | +#endif | |
43 | +#include <linux/module.h> | |
44 | +#include <linux/version.h> | |
45 | +#include <linux/netfilter_ipv4/ip_tables.h> | |
46 | +#include <linux/netfilter_ipv4/ipt_ipp2p.h> | |
47 | +#include <net/tcp.h> | |
48 | +#include <net/udp.h> | |
49 | + | |
50 | +#define get_u8(X,O) (*(__u8 *)(X + O)) | |
51 | +#define get_u16(X,O) (*(__u16 *)(X + O)) | |
52 | +#define get_u32(X,O) (*(__u32 *)(X + O)) | |
53 | + | |
54 | +MODULE_AUTHOR("Eicke Friedrich/Klaus Degner <ipp2p@ipp2p.org>"); | |
55 | +MODULE_DESCRIPTION("An extension to iptables to identify P2P traffic."); | |
56 | +MODULE_LICENSE("GPL"); | |
57 | + | |
58 | + | |
59 | +/*Search for UDP eDonkey/eMule/Kad commands*/ | |
60 | +int | |
61 | +udp_search_edk (unsigned char *haystack, int packet_len) | |
62 | +{ | |
63 | + unsigned char *t = haystack; | |
64 | + t += 8; | |
65 | + | |
66 | + switch (t[0]) { | |
67 | + case 0xe3: | |
68 | + { /*edonkey*/ | |
69 | + switch (t[1]) | |
70 | + { | |
71 | + /* client -> server status request */ | |
72 | + case 0x96: | |
73 | + if (packet_len == 14) return ((IPP2P_EDK * 100) + 50); | |
74 | + break; | |
75 | + /* server -> client status request */ | |
76 | + case 0x97: if (packet_len == 42) return ((IPP2P_EDK * 100) + 51); | |
77 | + break; | |
78 | + /* server description request */ | |
79 | + /* e3 2a ff f0 .. | size == 6 */ | |
80 | + case 0xa2: if ( (packet_len == 14) && ( get_u16(t,2) == __constant_htons(0xfff0) ) ) return ((IPP2P_EDK * 100) + 52); | |
81 | + break; | |
82 | + /* server description response */ | |
83 | + /* e3 a3 ff f0 .. | size > 40 && size < 200 */ | |
84 | + //case 0xa3: return ((IPP2P_EDK * 100) + 53); | |
85 | + // break; | |
86 | + case 0x9a: if (packet_len==26) return ((IPP2P_EDK * 100) + 54); | |
87 | + break; | |
88 | + | |
89 | + case 0x92: if (packet_len==18) return ((IPP2P_EDK * 100) + 55); | |
90 | + break; | |
91 | + } | |
92 | + break; | |
93 | + } | |
94 | + case 0xe4: | |
95 | + { | |
96 | + switch (t[1]) | |
97 | + { | |
98 | + /* e4 20 .. | size == 43 */ | |
99 | + case 0x20: if ((packet_len == 43) && (t[2] != 0x00) && (t[34] != 0x00)) return ((IPP2P_EDK * 100) + 60); | |
100 | + break; | |
101 | + /* e4 00 .. 00 | size == 35 ? */ | |
102 | + case 0x00: if ((packet_len == 35) && (t[26] == 0x00)) return ((IPP2P_EDK * 100) + 61); | |
103 | + break; | |
104 | + /* e4 10 .. 00 | size == 35 ? */ | |
105 | + case 0x10: if ((packet_len == 35) && (t[26] == 0x00)) return ((IPP2P_EDK * 100) + 62); | |
106 | + break; | |
107 | + /* e4 18 .. 00 | size == 35 ? */ | |
108 | + case 0x18: if ((packet_len == 35) && (t[26] == 0x00)) return ((IPP2P_EDK * 100) + 63); | |
109 | + break; | |
110 | + /* e4 52 .. | size = 44 */ | |
111 | + case 0x52: if (packet_len == 44 ) return ((IPP2P_EDK * 100) + 64); | |
112 | + break; | |
113 | + /* e4 58 .. | size == 6 */ | |
114 | + case 0x58: if (packet_len == 14 ) return ((IPP2P_EDK * 100) + 65); | |
115 | + break; | |
116 | + /* e4 59 .. | size == 2 */ | |
117 | + case 0x59: if (packet_len == 10 )return ((IPP2P_EDK * 100) + 66); | |
118 | + break; | |
119 | + /* e4 28 .. | packet_len == 52,77,102,127... */ | |
120 | + case 0x28: if (((packet_len-52) % 25) == 0) return ((IPP2P_EDK * 100) + 67); | |
121 | + break; | |
122 | + /* e4 50 xx xx | size == 4 */ | |
123 | + case 0x50: if (packet_len == 12) return ((IPP2P_EDK * 100) + 68); | |
124 | + break; | |
125 | + /* e4 40 xx xx | size == 48 */ | |
126 | + case 0x40: if (packet_len == 56) return ((IPP2P_EDK * 100) + 69); | |
127 | + break; | |
128 | + } | |
129 | + break; | |
130 | + } | |
131 | + } /* end of switch (t[0]) */ | |
132 | + return 0; | |
133 | +}/*udp_search_edk*/ | |
134 | + | |
135 | + | |
136 | +/*Search for UDP Gnutella commands*/ | |
137 | +int | |
138 | +udp_search_gnu (unsigned char *haystack, int packet_len) | |
139 | +{ | |
140 | + unsigned char *t = haystack; | |
141 | + t += 8; | |
142 | + | |
143 | + if (memcmp(t, "GND", 3) == 0) return ((IPP2P_GNU * 100) + 51); | |
144 | + if (memcmp(t, "GNUTELLA ", 9) == 0) return ((IPP2P_GNU * 100) + 52); | |
145 | + return 0; | |
146 | +}/*udp_search_gnu*/ | |
147 | + | |
148 | + | |
149 | +/*Search for UDP KaZaA commands*/ | |
150 | +int | |
151 | +udp_search_kazaa (unsigned char *haystack, int packet_len) | |
152 | +{ | |
153 | + unsigned char *t = haystack; | |
154 | + | |
155 | + if (t[packet_len-1] == 0x00){ | |
156 | + t += (packet_len - 6); | |
157 | + if (memcmp(t, "KaZaA", 5) == 0) return (IPP2P_KAZAA * 100 +50); | |
158 | + } | |
159 | + | |
160 | + return 0; | |
161 | +}/*udp_search_kazaa*/ | |
162 | + | |
163 | +/*Search for UDP DirectConnect commands*/ | |
164 | +int | |
165 | +udp_search_directconnect (unsigned char *haystack, int packet_len) | |
166 | +{ | |
167 | + unsigned char *t = haystack; | |
168 | + if ((*(t + 8) == 0x24) && (*(t + packet_len - 1) == 0x7c)) { | |
169 | + t+=8; | |
170 | + if (memcmp(t, "SR ", 3) == 0) return ((IPP2P_DC * 100) + 60); | |
171 | + if (memcmp(t, "Ping ", 5) == 0) return ((IPP2P_DC * 100) + 61); | |
172 | + } | |
173 | + return 0; | |
174 | +}/*udp_search_directconnect*/ | |
175 | + | |
176 | + | |
177 | + | |
178 | +/*Search for UDP BitTorrent commands*/ | |
179 | +int | |
180 | +udp_search_bit (unsigned char *haystack, int packet_len) | |
181 | +{ | |
182 | + switch(packet_len) | |
183 | + { | |
184 | + case 24: | |
185 | + /* ^ 00 00 04 17 27 10 19 80 */ | |
186 | + if ((ntohl(get_u32(haystack, 8)) == 0x00000417) && (ntohl(get_u32(haystack, 12)) == 0x27101980)) | |
187 | + return (IPP2P_BIT * 100 + 50); | |
188 | + break; | |
189 | + case 44: | |
190 | + if (get_u32(haystack, 16) == __constant_htonl(0x00000400) && get_u32(haystack, 36) == __constant_htonl(0x00000104)) | |
191 | + return (IPP2P_BIT * 100 + 51); | |
192 | + if (get_u32(haystack, 16) == __constant_htonl(0x00000400)) | |
193 | + return (IPP2P_BIT * 100 + 61); | |
194 | + break; | |
195 | + case 65: | |
196 | + if (get_u32(haystack, 16) == __constant_htonl(0x00000404) && get_u32(haystack, 36) == __constant_htonl(0x00000104)) | |
197 | + return (IPP2P_BIT * 100 + 52); | |
198 | + if (get_u32(haystack, 16) == __constant_htonl(0x00000404)) | |
199 | + return (IPP2P_BIT * 100 + 62); | |
200 | + break; | |
201 | + case 67: | |
202 | + if (get_u32(haystack, 16) == __constant_htonl(0x00000406) && get_u32(haystack, 36) == __constant_htonl(0x00000104)) | |
203 | + return (IPP2P_BIT * 100 + 53); | |
204 | + if (get_u32(haystack, 16) == __constant_htonl(0x00000406)) | |
205 | + return (IPP2P_BIT * 100 + 63); | |
206 | + break; | |
207 | + case 211: | |
208 | + if (get_u32(haystack, 8) == __constant_htonl(0x00000405)) | |
209 | + return (IPP2P_BIT * 100 + 54); | |
210 | + break; | |
211 | + case 29: | |
212 | + if ((get_u32(haystack, 8) == __constant_htonl(0x00000401))) | |
213 | + return (IPP2P_BIT * 100 + 55); | |
214 | + break; | |
215 | + case 52: | |
216 | + if (get_u32(haystack,8) == __constant_htonl(0x00000827) && | |
217 | + get_u32(haystack,12) == __constant_htonl(0x37502950)) | |
218 | + return (IPP2P_BIT * 100 + 80); | |
219 | + break; | |
220 | + default: | |
221 | + /* this packet does not have a constant size */ | |
222 | + if (packet_len >= 40 && get_u32(haystack, 16) == __constant_htonl(0x00000402) && get_u32(haystack, 36) == __constant_htonl(0x00000104)) | |
223 | + return (IPP2P_BIT * 100 + 56); | |
224 | + break; | |
225 | + } | |
226 | + | |
227 | + /* some extra-bitcomet rules: | |
228 | + * "d1:" [a|r] "d2:id20:" | |
229 | + */ | |
230 | + if (packet_len > 30 && get_u8(haystack, 8) == 'd' && get_u8(haystack, 9) == '1' && get_u8(haystack, 10) == ':' ) | |
231 | + { | |
232 | + if (get_u8(haystack, 11) == 'a' || get_u8(haystack, 11) == 'r') | |
233 | + { | |
234 | + if (memcmp(haystack+12,"d2:id20:",8)==0) | |
235 | + return (IPP2P_BIT * 100 + 57); | |
236 | + } | |
237 | + } | |
238 | + | |
239 | +#if 0 | |
240 | + /* bitlord rules */ | |
241 | + /* packetlen must be bigger than 40 */ | |
242 | + /* first 4 bytes are zero */ | |
243 | + if (packet_len > 40 && get_u32(haystack, 8) == 0x00000000) | |
244 | + { | |
245 | + /* first rule: 00 00 00 00 01 00 00 xx xx xx xx 00 00 00 00*/ | |
246 | + if (get_u32(haystack, 12) == 0x00000000 && | |
247 | + get_u32(haystack, 16) == 0x00010000 && | |
248 | + get_u32(haystack, 24) == 0x00000000 ) | |
249 | + return (IPP2P_BIT * 100 + 71); | |
250 | + | |
251 | + /* 00 01 00 00 0d 00 00 xx xx xx xx 00 00 00 00*/ | |
252 | + if (get_u32(haystack, 12) == 0x00000001 && | |
253 | + get_u32(haystack, 16) == 0x000d0000 && | |
254 | + get_u32(haystack, 24) == 0x00000000 ) | |
255 | + return (IPP2P_BIT * 100 + 71); | |
256 | + | |
257 | + | |
258 | + } | |
259 | +#endif | |
260 | + | |
261 | + return 0; | |
262 | +}/*udp_search_bit*/ | |
263 | + | |
264 | + | |
265 | + | |
266 | +/*Search for Ares commands*/ | |
267 | +//#define IPP2P_DEBUG_ARES | |
268 | +int | |
269 | +search_ares (const unsigned char *payload, const u16 plen) | |
270 | +//int search_ares (unsigned char *haystack, int packet_len, int head_len) | |
271 | +{ | |
272 | +// const unsigned char *t = haystack + head_len; | |
273 | + | |
274 | + /* all ares packets start with */ | |
275 | + if (payload[1] == 0 && (plen - payload[0]) == 3) | |
276 | + { | |
277 | + switch (payload[2]) | |
278 | + { | |
279 | + case 0x5a: | |
280 | + /* ares connect */ | |
281 | + if ( plen == 6 && payload[5] == 0x05 ) return ((IPP2P_ARES * 100) + 1); | |
282 | + break; | |
283 | + case 0x09: | |
284 | + /* ares search, min 3 chars --> 14 bytes | |
285 | + * lets define a search can be up to 30 chars --> max 34 bytes | |
286 | + */ | |
287 | + if ( plen >= 14 && plen <= 34 ) return ((IPP2P_ARES * 100) + 1); | |
288 | + break; | |
289 | +#ifdef IPP2P_DEBUG_ARES | |
290 | + default: | |
291 | + printk(KERN_DEBUG "Unknown Ares command %x recognized, len: %u \n", (unsigned int) payload[2],plen); | |
292 | +#endif /* IPP2P_DEBUG_ARES */ | |
293 | + } | |
294 | + } | |
295 | + | |
296 | +#if 0 | |
297 | + /* found connect packet: 03 00 5a 04 03 05 */ | |
298 | + /* new version ares 1.8: 03 00 5a xx xx 05 */ | |
299 | + if ((plen) == 6){ /* possible connect command*/ | |
300 | + if ((payload[0] == 0x03) && (payload[1] == 0x00) && (payload[2] == 0x5a) && (payload[5] == 0x05)) | |
301 | + return ((IPP2P_ARES * 100) + 1); | |
302 | + } | |
303 | + if ((plen) == 60){ /* possible download command*/ | |
304 | + if ((payload[59] == 0x0a) && (payload[58] == 0x0a)){ | |
305 | + if (memcmp(t, "PUSH SHA1:", 10) == 0) /* found download command */ | |
306 | + return ((IPP2P_ARES * 100) + 2); | |
307 | + } | |
308 | + } | |
309 | +#endif | |
310 | + | |
311 | + return 0; | |
312 | +} /*search_ares*/ | |
313 | + | |
314 | +/*Search for SoulSeek commands*/ | |
315 | +int | |
316 | +search_soul (const unsigned char *payload, const u16 plen) | |
317 | +{ | |
318 | +//#define IPP2P_DEBUG_SOUL | |
319 | + /* match: xx xx xx xx | xx = sizeof(payload) - 4 */ | |
320 | + if (get_u32(payload, 0) == (plen - 4)){ | |
321 | + const __u32 m=get_u32(payload, 4); | |
322 | + /* match 00 yy yy 00, yy can be everything */ | |
323 | + if ( get_u8(payload, 4) == 0x00 && get_u8(payload, 7) == 0x00 ) | |
324 | + { | |
325 | +#ifdef IPP2P_DEBUG_SOUL | |
326 | + printk(KERN_DEBUG "0: Soulseek command 0x%x recognized\n",get_u32(payload, 4)); | |
327 | +#endif /* IPP2P_DEBUG_SOUL */ | |
328 | + return ((IPP2P_SOUL * 100) + 1); | |
329 | + } | |
330 | + | |
331 | + /* next match: 01 yy 00 00 | yy can be everything */ | |
332 | + if ( get_u8(payload, 4) == 0x01 && get_u16(payload, 6) == 0x0000 ) | |
333 | + { | |
334 | +#ifdef IPP2P_DEBUG_SOUL | |
335 | + printk(KERN_DEBUG "1: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); | |
336 | +#endif /* IPP2P_DEBUG_SOUL */ | |
337 | + return ((IPP2P_SOUL * 100) + 2); | |
338 | + } | |
339 | + | |
340 | + /* 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 */ | |
341 | + /* try to do this in an intelligent way */ | |
342 | + /* get all small commandos */ | |
343 | + switch(m) | |
344 | + { | |
345 | + case 7: | |
346 | + case 9: | |
347 | + case 22: | |
348 | + case 23: | |
349 | + case 26: | |
350 | + case 28: | |
351 | + case 50: | |
352 | + case 51: | |
353 | + case 60: | |
354 | + case 91: | |
355 | + case 92: | |
356 | + case 1001: | |
357 | +#ifdef IPP2P_DEBUG_SOUL | |
358 | + printk(KERN_DEBUG "2: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); | |
359 | +#endif /* IPP2P_DEBUG_SOUL */ | |
360 | + return ((IPP2P_SOUL * 100) + 3); | |
361 | + } | |
362 | + | |
363 | + if (m > 0 && m < 6 ) | |
364 | + { | |
365 | +#ifdef IPP2P_DEBUG_SOUL | |
366 | + printk(KERN_DEBUG "3: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); | |
367 | +#endif /* IPP2P_DEBUG_SOUL */ | |
368 | + return ((IPP2P_SOUL * 100) + 4); | |
369 | + } | |
370 | + if (m > 12 && m < 19 ) | |
371 | + { | |
372 | +#ifdef IPP2P_DEBUG_SOUL | |
373 | + printk(KERN_DEBUG "4: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); | |
374 | +#endif /* IPP2P_DEBUG_SOUL */ | |
375 | + return ((IPP2P_SOUL * 100) + 5); | |
376 | + } | |
377 | + | |
378 | + if (m > 34 && m < 38 ) | |
379 | + { | |
380 | +#ifdef IPP2P_DEBUG_SOUL | |
381 | + printk(KERN_DEBUG "5: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); | |
382 | +#endif /* IPP2P_DEBUG_SOUL */ | |
383 | + return ((IPP2P_SOUL * 100) + 6); | |
384 | + } | |
385 | + | |
386 | + if (m > 39 && m < 47 ) | |
387 | + { | |
388 | +#ifdef IPP2P_DEBUG_SOUL | |
389 | + printk(KERN_DEBUG "6: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); | |
390 | +#endif /* IPP2P_DEBUG_SOUL */ | |
391 | + return ((IPP2P_SOUL * 100) + 7); | |
392 | + } | |
393 | + | |
394 | + if (m > 61 && m < 70 ) | |
395 | + { | |
396 | +#ifdef IPP2P_DEBUG_SOUL | |
397 | + printk(KERN_DEBUG "7: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); | |
398 | +#endif /* IPP2P_DEBUG_SOUL */ | |
399 | + return ((IPP2P_SOUL * 100) + 8); | |
400 | + } | |
401 | + | |
402 | +#ifdef IPP2P_DEBUG_SOUL | |
403 | + printk(KERN_DEBUG "unknown SOULSEEK command: 0x%x, first 16 bit: 0x%x, first 8 bit: 0x%x ,soulseek ???\n",get_u32(payload, 4),get_u16(payload, 4) >> 16,get_u8(payload, 4) >> 24); | |
404 | +#endif /* IPP2P_DEBUG_SOUL */ | |
405 | + } | |
406 | + | |
407 | + /* match 14 00 00 00 01 yy 00 00 00 STRING(YY) 01 00 00 00 00 46|50 00 00 00 00 */ | |
408 | + /* without size at the beginning !!! */ | |
409 | + if ( get_u32(payload, 0) == 0x14 && get_u8(payload, 4) == 0x01 ) | |
410 | + { | |
411 | + __u32 y=get_u32(payload, 5); | |
412 | + /* we need 19 chars + string */ | |
413 | + if ( (y + 19) <= (plen) ) | |
414 | + { | |
415 | + const unsigned char *w=payload+9+y; | |
416 | + if (get_u32(w, 0) == 0x01 && ( get_u16(w, 4) == 0x4600 || get_u16(w, 4) == 0x5000) && get_u32(w, 6) == 0x00); | |
417 | +#ifdef IPP2P_DEBUG_SOUL | |
418 | + printk(KERN_DEBUG "Soulssek special client command recognized\n"); | |
419 | +#endif /* IPP2P_DEBUG_SOUL */ | |
420 | + return ((IPP2P_SOUL * 100) + 9); | |
421 | + } | |
422 | + } | |
423 | + return 0; | |
424 | +} | |
425 | + | |
426 | + | |
427 | +/*Search for WinMX commands*/ | |
428 | +int | |
429 | +search_winmx (const unsigned char *payload, const u16 plen) | |
430 | +{ | |
431 | +//#define IPP2P_DEBUG_WINMX | |
432 | + if (((plen) == 4) && (memcmp(payload, "SEND", 4) == 0)) return ((IPP2P_WINMX * 100) + 1); | |
433 | + if (((plen) == 3) && (memcmp(payload, "GET", 3) == 0)) return ((IPP2P_WINMX * 100) + 2); | |
434 | + //if (packet_len < (head_len + 10)) return 0; | |
435 | + if (plen < 10) return 0; | |
436 | + | |
437 | + if ((memcmp(payload, "SEND", 4) == 0) || (memcmp(payload, "GET", 3) == 0)){ | |
438 | + u16 c=4; | |
439 | + const u16 end=plen-2; | |
440 | + u8 count=0; | |
441 | + while (c < end) | |
442 | + { | |
443 | + if (payload[c]== 0x20 && payload[c+1] == 0x22) | |
444 | + { | |
445 | + c++; | |
446 | + count++; | |
447 | + if (count>=2) return ((IPP2P_WINMX * 100) + 3); | |
448 | + } | |
449 | + c++; | |
450 | + } | |
451 | + } | |
452 | + | |
453 | + if ( plen == 149 && payload[0] == '8' ) | |
454 | + { | |
455 | +#ifdef IPP2P_DEBUG_WINMX | |
456 | + printk(KERN_INFO "maybe WinMX\n"); | |
457 | +#endif | |
458 | + if (get_u32(payload,17) == 0 && get_u32(payload,21) == 0 && get_u32(payload,25) == 0 && | |
459 | +// get_u32(payload,33) == __constant_htonl(0x71182b1a) && get_u32(payload,37) == __constant_htonl(0x05050000) && | |
460 | +// get_u32(payload,133) == __constant_htonl(0x31097edf) && get_u32(payload,145) == __constant_htonl(0xdcb8f792)) | |
461 | + get_u16(payload,39) == 0 && get_u16(payload,135) == __constant_htons(0x7edf) && get_u16(payload,147) == __constant_htons(0xf792)) | |
462 | + | |
463 | + { | |
464 | +#ifdef IPP2P_DEBUG_WINMX | |
465 | + printk(KERN_INFO "got WinMX\n"); | |
466 | +#endif | |
467 | + return ((IPP2P_WINMX * 100) + 4); | |
468 | + } | |
469 | + } | |
470 | + return 0; | |
471 | +} /*search_winmx*/ | |
472 | + | |
473 | + | |
474 | +/*Search for appleJuice commands*/ | |
475 | +int | |
476 | +search_apple (const unsigned char *payload, const u16 plen) | |
477 | +{ | |
478 | + if ( (plen > 7) && (payload[6] == 0x0d) && (payload[7] == 0x0a) && (memcmp(payload, "ajprot", 6) == 0)) return (IPP2P_APPLE * 100); | |
479 | + | |
480 | + return 0; | |
481 | +} | |
482 | + | |
483 | + | |
484 | +/*Search for BitTorrent commands*/ | |
485 | +int | |
486 | +search_bittorrent (const unsigned char *payload, const u16 plen) | |
487 | +{ | |
488 | + if (plen > 20) | |
489 | + { | |
490 | + /* test for match 0x13+"BitTorrent protocol" */ | |
491 | + if (payload[0] == 0x13) | |
492 | + { | |
493 | + if (memcmp(payload+1, "BitTorrent protocol", 19) == 0) return (IPP2P_BIT * 100); | |
494 | + } | |
495 | + | |
496 | + /* get tracker commandos, all starts with GET / | |
497 | + * then it can follow: scrape| announce | |
498 | + * and then ?hash_info= | |
499 | + */ | |
500 | + if (memcmp(payload,"GET /",5) == 0) | |
501 | + { | |
502 | + /* message scrape */ | |
503 | + if ( memcmp(payload+5,"scrape?info_hash=",17)==0 ) return (IPP2P_BIT * 100 + 1); | |
504 | + /* message announce */ | |
505 | + if ( memcmp(payload+5,"announce?info_hash=",19)==0 ) return (IPP2P_BIT * 100 + 2); | |
506 | + } | |
507 | + } | |
508 | + else | |
509 | + { | |
510 | + /* bitcomet encryptes the first packet, so we have to detect another | |
511 | + * one later in the flow */ | |
512 | + /* first try failed, too many missdetections */ | |
513 | + //if ( size == 5 && get_u32(t,0) == __constant_htonl(1) && t[4] < 3) return (IPP2P_BIT * 100 + 3); | |
514 | + | |
515 | + /* second try: block request packets */ | |
516 | + if ( plen == 17 && get_u32(payload,0) == __constant_htonl(0x0d) && payload[4] == 0x06 && get_u32(payload,13) == __constant_htonl(0x4000) ) return (IPP2P_BIT * 100 + 3); | |
517 | + } | |
518 | + | |
519 | + return 0; | |
520 | +} | |
521 | + | |
522 | + | |
523 | + | |
524 | +/*check for Kazaa get command*/ | |
525 | +int | |
526 | +search_kazaa (const unsigned char *payload, const u16 plen) | |
527 | + | |
528 | +{ | |
529 | + if ((payload[plen-2] == 0x0d) && (payload[plen-1] == 0x0a) && memcmp(payload, "GET /.hash=", 11) == 0) | |
530 | + return (IPP2P_DATA_KAZAA * 100); | |
531 | + | |
532 | + return 0; | |
533 | +} | |
534 | + | |
535 | + | |
536 | +/*check for gnutella get command*/ | |
537 | +int | |
538 | +search_gnu (const unsigned char *payload, const u16 plen) | |
539 | +{ | |
540 | + if ((payload[plen-2] == 0x0d) && (payload[plen-1] == 0x0a)) | |
541 | + { | |
542 | + if (memcmp(payload, "GET /get/", 9) == 0) return ((IPP2P_DATA_GNU * 100) + 1); | |
543 | + if (memcmp(payload, "GET /uri-res/", 13) == 0) return ((IPP2P_DATA_GNU * 100) + 2); | |
544 | + } | |
545 | + return 0; | |
546 | +} | |
547 | + | |
548 | + | |
549 | +/*check for gnutella get commands and other typical data*/ | |
550 | +int | |
551 | +search_all_gnu (const unsigned char *payload, const u16 plen) | |
552 | +{ | |
553 | + | |
554 | + if ((payload[plen-2] == 0x0d) && (payload[plen-1] == 0x0a)) | |
555 | + { | |
556 | + | |
557 | + if (memcmp(payload, "GNUTELLA CONNECT/", 17) == 0) return ((IPP2P_GNU * 100) + 1); | |
558 | + if (memcmp(payload, "GNUTELLA/", 9) == 0) return ((IPP2P_GNU * 100) + 2); | |
559 | + | |
560 | + | |
561 | + if ((memcmp(payload, "GET /get/", 9) == 0) || (memcmp(payload, "GET /uri-res/", 13) == 0)) | |
562 | + { | |
563 | + u16 c=8; | |
564 | + const u16 end=plen-22; | |
565 | + while (c < end) { | |
566 | + if ( payload[c] == 0x0a && payload[c+1] == 0x0d && ((memcmp(&payload[c+2], "X-Gnutella-", 11) == 0) || (memcmp(&payload[c+2], "X-Queue:", 8) == 0))) | |
567 | + return ((IPP2P_GNU * 100) + 3); | |
568 | + c++; | |
569 | + } | |
570 | + } | |
571 | + } | |
572 | + return 0; | |
573 | +} | |
574 | + | |
575 | + | |
576 | +/*check for KaZaA download commands and other typical data*/ | |
577 | +int | |
578 | +search_all_kazaa (const unsigned char *payload, const u16 plen) | |
579 | +{ | |
580 | + if ((payload[plen-2] == 0x0d) && (payload[plen-1] == 0x0a)) | |
581 | + { | |
582 | + | |
583 | + if (memcmp(payload, "GIVE ", 5) == 0) return ((IPP2P_KAZAA * 100) + 1); | |
584 | + | |
585 | + if (memcmp(payload, "GET /", 5) == 0) { | |
586 | + u16 c = 8; | |
587 | + const u16 end=plen-22; | |
588 | + while (c < end) { | |
589 | + if ( payload[c] == 0x0a && payload[c+1] == 0x0d && ((memcmp(&payload[c+2], "X-Kazaa-Username: ", 18) == 0) || (memcmp(&payload[c+2], "User-Agent: PeerEnabler/", 24) == 0))) | |
590 | + return ((IPP2P_KAZAA * 100) + 2); | |
591 | + c++; | |
592 | + } | |
593 | + } | |
594 | + } | |
595 | + return 0; | |
596 | +} | |
597 | + | |
598 | +/*fast check for edonkey file segment transfer command*/ | |
599 | +int | |
600 | +search_edk (const unsigned char *payload, const u16 plen) | |
601 | +{ | |
602 | + if (payload[0] != 0xe3) | |
603 | + return 0; | |
604 | + else { | |
605 | + if (payload[5] == 0x47) | |
606 | + return (IPP2P_DATA_EDK * 100); | |
607 | + else | |
608 | + return 0; | |
609 | + } | |
610 | +} | |
611 | + | |
612 | + | |
613 | + | |
614 | +/*intensive but slower search for some edonkey packets including size-check*/ | |
615 | +int | |
616 | +search_all_edk (const unsigned char *payload, const u16 plen) | |
617 | +{ | |
618 | + if (payload[0] != 0xe3) | |
619 | + return 0; | |
620 | + else { | |
621 | + //t += head_len; | |
622 | + const u16 cmd = get_u16(payload, 1); | |
623 | + if (cmd == (plen - 5)) { | |
624 | + switch (payload[5]) { | |
625 | + case 0x01: return ((IPP2P_EDK * 100) + 1); /*Client: hello or Server:hello*/ | |
626 | + case 0x4c: return ((IPP2P_EDK * 100) + 9); /*Client: Hello-Answer*/ | |
627 | + } | |
628 | + } | |
629 | + return 0; | |
630 | + } | |
631 | +} | |
632 | + | |
633 | + | |
634 | +/*fast check for Direct Connect send command*/ | |
635 | +int | |
636 | +search_dc (const unsigned char *payload, const u16 plen) | |
637 | +{ | |
638 | + | |
639 | + if (payload[0] != 0x24 ) | |
640 | + return 0; | |
641 | + else { | |
642 | + if (memcmp(&payload[1], "Send|", 5) == 0) | |
643 | + return (IPP2P_DATA_DC * 100); | |
644 | + else | |
645 | + return 0; | |
646 | + } | |
647 | + | |
648 | +} | |
649 | + | |
650 | + | |
651 | +/*intensive but slower check for all direct connect packets*/ | |
652 | +int | |
653 | +search_all_dc (const unsigned char *payload, const u16 plen) | |
654 | +{ | |
655 | +// unsigned char *t = haystack; | |
656 | + | |
657 | + if (payload[0] == 0x24 && payload[plen-1] == 0x7c) | |
658 | + { | |
659 | + const unsigned char *t=&payload[1]; | |
660 | + /* Client-Hub-Protocol */ | |
661 | + if (memcmp(t, "Lock ", 5) == 0) return ((IPP2P_DC * 100) + 1); | |
662 | + /* Client-Client-Protocol, some are already recognized by client-hub (like lock) */ | |
663 | + if (memcmp(t, "MyNick ", 7) == 0) return ((IPP2P_DC * 100) + 38); | |
664 | + } | |
665 | + return 0; | |
666 | +} | |
667 | + | |
668 | +/*check for mute*/ | |
669 | +int | |
670 | +search_mute (const unsigned char *payload, const u16 plen) | |
671 | +{ | |
672 | + if ( plen == 209 || plen == 345 || plen == 473 || plen == 609 || plen == 1121 ) | |
673 | + { | |
674 | + //printk(KERN_DEBUG "size hit: %u",size); | |
675 | + if (memcmp(payload,"PublicKey: ",11) == 0 ) | |
676 | + { | |
677 | + return ((IPP2P_MUTE * 100) + 0); | |
678 | + | |
679 | +/* if (memcmp(t+size-14,"\x0aEndPublicKey\x0a",14) == 0) | |
680 | + { | |
681 | + printk(KERN_DEBUG "end pubic key hit: %u",size); | |
682 | + | |
683 | + }*/ | |
684 | + } | |
685 | + } | |
686 | + return 0; | |
687 | +} | |
688 | + | |
689 | + | |
690 | +/* check for xdcc */ | |
691 | +int | |
692 | +search_xdcc (const unsigned char *payload, const u16 plen) | |
693 | +{ | |
694 | + /* search in small packets only */ | |
695 | + if (plen > 20 && plen < 200 && payload[plen-1] == 0x0a && payload[plen-2] == 0x0d && memcmp(payload,"PRIVMSG ",8) == 0) | |
696 | + { | |
697 | + | |
698 | + u16 x=10; | |
699 | + const u16 end=plen - 13; | |
700 | + | |
701 | + /* is seems to be a irc private massage, chedck for xdcc command */ | |
702 | + while (x < end) | |
703 | + { | |
704 | + if (payload[x] == ':') | |
705 | + { | |
706 | + if ( memcmp(&payload[x+1],"xdcc send #",11) == 0 ) | |
707 | + return ((IPP2P_XDCC * 100) + 0); | |
708 | + } | |
709 | + x++; | |
710 | + } | |
711 | + } | |
712 | + return 0; | |
713 | +} | |
714 | + | |
715 | +/* search for waste */ | |
716 | +int search_waste(const unsigned char *payload, const u16 plen) | |
717 | +{ | |
718 | + if ( plen >= 8 && memcmp(payload,"GET.sha1:",9) == 0) | |
719 | + return ((IPP2P_WASTE * 100) + 0); | |
720 | + | |
721 | + return 0; | |
722 | +} | |
723 | + | |
724 | + | |
725 | +static struct { | |
726 | + int command; | |
727 | + __u8 short_hand; /*for fucntions included in short hands*/ | |
728 | + int packet_len; | |
729 | + int (*function_name) (const unsigned char *, const u16); | |
730 | +} matchlist[] = { | |
731 | + {IPP2P_EDK,SHORT_HAND_IPP2P,20, &search_all_edk}, | |
732 | +// {IPP2P_DATA_KAZAA,SHORT_HAND_DATA,200, &search_kazaa}, | |
733 | +// {IPP2P_DATA_EDK,SHORT_HAND_DATA,60, &search_edk}, | |
734 | +// {IPP2P_DATA_DC,SHORT_HAND_DATA,26, &search_dc}, | |
735 | + {IPP2P_DC,SHORT_HAND_IPP2P,5, search_all_dc}, | |
736 | +// {IPP2P_DATA_GNU,SHORT_HAND_DATA,40, &search_gnu}, | |
737 | + {IPP2P_GNU,SHORT_HAND_IPP2P,5, &search_all_gnu}, | |
738 | + {IPP2P_KAZAA,SHORT_HAND_IPP2P,5, &search_all_kazaa}, | |
739 | + {IPP2P_BIT,SHORT_HAND_IPP2P,20, &search_bittorrent}, | |
740 | + {IPP2P_APPLE,SHORT_HAND_IPP2P,5, &search_apple}, | |
741 | + {IPP2P_SOUL,SHORT_HAND_IPP2P,5, &search_soul}, | |
742 | + {IPP2P_WINMX,SHORT_HAND_IPP2P,2, &search_winmx}, | |
743 | + {IPP2P_ARES,SHORT_HAND_IPP2P,5, &search_ares}, | |
744 | + {IPP2P_MUTE,SHORT_HAND_NONE,200, &search_mute}, | |
745 | + {IPP2P_WASTE,SHORT_HAND_NONE,5, &search_waste}, | |
746 | + {IPP2P_XDCC,SHORT_HAND_NONE,5, &search_xdcc}, | |
747 | + {0,0,0,NULL} | |
748 | +}; | |
749 | + | |
750 | + | |
751 | +static struct { | |
752 | + int command; | |
753 | + __u8 short_hand; /*for fucntions included in short hands*/ | |
754 | + int packet_len; | |
755 | + int (*function_name) (unsigned char *, int); | |
756 | +} udp_list[] = { | |
757 | + { IPP2P_KAZAA, SHORT_HAND_IPP2P, 14, &udp_search_kazaa}, | |
758 | + { IPP2P_BIT, SHORT_HAND_IPP2P, 23, &udp_search_bit}, | |
759 | + { IPP2P_GNU, SHORT_HAND_IPP2P, 11, &udp_search_gnu}, | |
760 | + { IPP2P_EDK, SHORT_HAND_IPP2P, 9, &udp_search_edk}, | |
761 | + { IPP2P_DC, SHORT_HAND_IPP2P, 12, &udp_search_directconnect}, | |
762 | + { 0, 0, 0, NULL } | |
763 | +}; | |
764 | + | |
765 | +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) | |
766 | +static bool | |
767 | +#else | |
768 | +static int | |
769 | +#endif | |
770 | +match(const struct sk_buff *skb, | |
771 | + const struct net_device *in, | |
772 | + const struct net_device *out, | |
773 | +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17) | |
774 | + const struct xt_match *match, | |
775 | +#endif | |
776 | + const void *matchinfo, | |
777 | + int offset, | |
778 | +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) | |
779 | + const void *hdr, | |
780 | + u_int16_t datalen, | |
781 | +#endif | |
782 | +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16) | |
783 | + unsigned int protoff, | |
784 | +#endif | |
785 | +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) | |
786 | + bool *hotdrop) | |
787 | +#else | |
788 | + bool *hotdrop) | |
789 | +#endif | |
790 | +{ | |
791 | + const struct ipt_p2p_info *info = matchinfo; | |
792 | + unsigned char *haystack; | |
793 | +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) | |
794 | + struct iphdr *ip = ip_hdr(skb); | |
795 | +#else | |
796 | + struct iphdr *ip = skb->nh.iph; | |
797 | +#endif | |
798 | + int p2p_result = 0, i = 0; | |
799 | +// int head_len; | |
800 | + int hlen = ntohs(ip->tot_len)-(ip->ihl*4); /*hlen = packet-data length*/ | |
801 | + | |
802 | + /*must not be a fragment*/ | |
803 | + if (offset) { | |
804 | + if (info->debug) printk("IPP2P.match: offset found %i \n",offset); | |
805 | + return 0; | |
806 | + } | |
807 | + | |
808 | + /*make sure that skb is linear*/ | |
809 | + if(skb_is_nonlinear(skb)){ | |
810 | + if (info->debug) printk("IPP2P.match: nonlinear skb found\n"); | |
811 | + return 0; | |
812 | + } | |
813 | + | |
814 | + | |
815 | + haystack=(char *)ip+(ip->ihl*4); /*haystack = packet data*/ | |
816 | + | |
817 | + switch (ip->protocol){ | |
818 | + case IPPROTO_TCP: /*what to do with a TCP packet*/ | |
819 | + { | |
820 | + struct tcphdr *tcph = (void *) ip + ip->ihl * 4; | |
821 | + | |
822 | + if (tcph->fin) return 0; /*if FIN bit is set bail out*/ | |
823 | + if (tcph->syn) return 0; /*if SYN bit is set bail out*/ | |
824 | + if (tcph->rst) return 0; /*if RST bit is set bail out*/ | |
825 | + | |
826 | + haystack += tcph->doff * 4; /*get TCP-Header-Size*/ | |
827 | + hlen -= tcph->doff * 4; | |
828 | + while (matchlist[i].command) { | |
829 | + if ((((info->cmd & matchlist[i].command) == matchlist[i].command) || | |
830 | + ((info->cmd & matchlist[i].short_hand) == matchlist[i].short_hand)) && | |
831 | + (hlen > matchlist[i].packet_len)) { | |
832 | + p2p_result = matchlist[i].function_name(haystack, hlen); | |
833 | + if (p2p_result) | |
834 | + { | |
835 | + if (info->debug) printk("IPP2P.debug:TCP-match: %i from: %u.%u.%u.%u:%i to: %u.%u.%u.%u:%i Length: %i\n", | |
836 | + p2p_result, NIPQUAD(ip->saddr),ntohs(tcph->source), NIPQUAD(ip->daddr),ntohs(tcph->dest),hlen); | |
837 | + return p2p_result; | |
838 | + } | |
839 | + } | |
840 | + i++; | |
841 | + } | |
842 | + return p2p_result; | |
843 | + } | |
844 | + | |
845 | + case IPPROTO_UDP: /*what to do with an UDP packet*/ | |
846 | + { | |
847 | + struct udphdr *udph = (void *) ip + ip->ihl * 4; | |
848 | + | |
849 | + while (udp_list[i].command){ | |
850 | + if ((((info->cmd & udp_list[i].command) == udp_list[i].command) || | |
851 | + ((info->cmd & udp_list[i].short_hand) == udp_list[i].short_hand)) && | |
852 | + (hlen > udp_list[i].packet_len)) { | |
853 | + p2p_result = udp_list[i].function_name(haystack, hlen); | |
854 | + if (p2p_result){ | |
855 | + if (info->debug) printk("IPP2P.debug:UDP-match: %i from: %u.%u.%u.%u:%i to: %u.%u.%u.%u:%i Length: %i\n", | |
856 | + p2p_result, NIPQUAD(ip->saddr),ntohs(udph->source), NIPQUAD(ip->daddr),ntohs(udph->dest),hlen); | |
857 | + return p2p_result; | |
858 | + } | |
859 | + } | |
860 | + i++; | |
861 | + } | |
862 | + return p2p_result; | |
863 | + } | |
864 | + | |
865 | + default: return 0; | |
866 | + } | |
867 | +} | |
868 | + | |
869 | +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) | |
870 | +static bool | |
871 | +#else | |
872 | +static int | |
873 | +#endif | |
874 | +checkentry(const char *tablename, | |
875 | +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16) | |
876 | + const void *ip, | |
877 | +#else | |
878 | + const struct ipt_ip *ip, | |
879 | +#endif | |
880 | +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17) | |
881 | + const struct xt_match *match, | |
882 | +#endif | |
883 | + void *matchinfo, | |
884 | +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) | |
885 | + unsigned int matchsize, | |
886 | +#endif | |
887 | + unsigned int hook_mask) | |
888 | +{ | |
889 | + /* Must specify -p tcp */ | |
890 | +/* if (ip->proto != IPPROTO_TCP || (ip->invflags & IPT_INV_PROTO)) { | |
891 | + * printk("ipp2p: Only works on TCP packets, use -p tcp\n"); | |
892 | + * return 0; | |
893 | + * }*/ | |
894 | + return 1; | |
895 | +} | |
896 | + | |
897 | + | |
898 | + | |
899 | +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21) | |
900 | +static struct xt_match ipp2p_match = { | |
901 | +#else | |
902 | +static struct ipt_match ipp2p_match = { | |
903 | +#endif | |
904 | +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) | |
905 | + { NULL, NULL }, | |
906 | + "ipp2p", | |
907 | + &ipp2p_match, | |
908 | + &ipp2p_checkentry, | |
909 | + NULL, | |
910 | + THIS_MODULE | |
911 | +#endif | |
912 | +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) | |
913 | + .name = "ipp2p", | |
914 | +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21) | |
915 | + .family = AF_INET, | |
916 | +#endif | |
917 | + .match = &match, | |
918 | +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17) | |
919 | + .matchsize = sizeof(struct ipt_p2p_info), | |
920 | +#endif | |
921 | + .checkentry = &checkentry, | |
922 | + .me = THIS_MODULE, | |
923 | +#endif | |
924 | +}; | |
925 | + | |
926 | + | |
927 | +static int __init init(void) | |
928 | +{ | |
929 | + printk(KERN_INFO "IPP2P v%s loading\n", IPP2P_VERSION); | |
930 | +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21) | |
931 | + return xt_register_match(&ipp2p_match); | |
932 | +#else | |
933 | + return ipt_register_match(&ipp2p_match); | |
934 | +#endif | |
935 | +} | |
936 | + | |
937 | +static void __exit fini(void) | |
938 | +{ | |
939 | +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21) | |
940 | + xt_unregister_match(&ipp2p_match); | |
941 | +#else | |
942 | + ipt_unregister_match(&ipp2p_match); | |
943 | +#endif | |
944 | + printk(KERN_INFO "IPP2P v%s unloaded\n", IPP2P_VERSION); | |
945 | +} | |
946 | + | |
947 | +module_init(init); | |
948 | +module_exit(fini); | |
949 | + | |
950 | + | |
951 | diff -Naur linux-2.6.27.19.org/net/ipv4/netfilter/Kconfig linux-2.6.27.19/net/ipv4/netfilter/Kconfig | |
952 | --- linux-2.6.27.19.org/net/ipv4/netfilter/Kconfig 2009-02-20 23:39:34.000000000 +0100 | |
953 | +++ linux-2.6.27.19/net/ipv4/netfilter/Kconfig 2009-03-17 19:31:50.000000000 +0100 | |
954 | @@ -406,5 +406,15 @@ | |
955 | Allows altering the ARP packet payload: source and destination | |
956 | hardware and network addresses. | |
957 | ||
958 | +config IP_NF_MATCH_IPP2P | |
959 | + tristate 'IPP2P match support' | |
960 | + depends on IP_NF_IPTABLES | |
961 | + help | |
962 | + This option makes possible to match some P2P packets | |
963 | + therefore helps controlling such traffic. | |
964 | + | |
965 | + If you want to compile it as a module, say M here and read | |
966 | + <file:Documentation/modules.txt>. If unsure, say `N'. | |
967 | + | |
968 | endmenu | |
969 | ||
970 | diff -Naur linux-2.6.27.19.org/net/ipv4/netfilter/Makefile linux-2.6.27.19/net/ipv4/netfilter/Makefile | |
971 | --- linux-2.6.27.19.org/net/ipv4/netfilter/Makefile 2009-02-20 23:39:34.000000000 +0100 | |
972 | +++ linux-2.6.27.19/net/ipv4/netfilter/Makefile 2009-03-17 19:31:50.000000000 +0100 | |
973 | @@ -49,6 +49,7 @@ | |
974 | obj-$(CONFIG_IP_NF_MATCH_AH) += ipt_ah.o | |
975 | obj-$(CONFIG_IP_NF_MATCH_ECN) += ipt_ecn.o | |
976 | obj-$(CONFIG_IP_NF_MATCH_RECENT) += ipt_recent.o | |
977 | +obj-$(CONFIG_IP_NF_MATCH_IPP2P) += ipt_ipp2p.o | |
978 | obj-$(CONFIG_IP_NF_MATCH_TTL) += ipt_ttl.o | |
979 | ||
980 | # targets |