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9fb9cbb1 YK |
1 | /* (C) 1999-2001 Paul `Rusty' Russell |
2 | * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org> | |
f229f6ce | 3 | * (C) 2006-2012 Patrick McHardy <kaber@trash.net> |
9fb9cbb1 YK |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License version 2 as | |
7 | * published by the Free Software Foundation. | |
9fb9cbb1 YK |
8 | */ |
9 | ||
10 | #include <linux/types.h> | |
9fb9cbb1 YK |
11 | #include <linux/timer.h> |
12 | #include <linux/module.h> | |
9fb9cbb1 YK |
13 | #include <linux/udp.h> |
14 | #include <linux/seq_file.h> | |
15 | #include <linux/skbuff.h> | |
16 | #include <linux/ipv6.h> | |
17 | #include <net/ip6_checksum.h> | |
18 | #include <net/checksum.h> | |
f6180121 | 19 | |
9fb9cbb1 YK |
20 | #include <linux/netfilter.h> |
21 | #include <linux/netfilter_ipv4.h> | |
22 | #include <linux/netfilter_ipv6.h> | |
605dcad6 | 23 | #include <net/netfilter/nf_conntrack_l4proto.h> |
f6180121 | 24 | #include <net/netfilter/nf_conntrack_ecache.h> |
f01ffbd6 | 25 | #include <net/netfilter/nf_log.h> |
9d2493f8 CP |
26 | #include <net/netfilter/ipv4/nf_conntrack_ipv4.h> |
27 | #include <net/netfilter/ipv6/nf_conntrack_ipv6.h> | |
9fb9cbb1 | 28 | |
5a41db94 PNA |
29 | static unsigned int udp_timeouts[UDP_CT_MAX] = { |
30 | [UDP_CT_UNREPLIED] = 30*HZ, | |
31 | [UDP_CT_REPLIED] = 180*HZ, | |
32 | }; | |
9fb9cbb1 | 33 | |
0ce490ad G |
34 | static inline struct nf_udp_net *udp_pernet(struct net *net) |
35 | { | |
36 | return &net->ct.nf_ct_proto.udp; | |
37 | } | |
38 | ||
09f263cd | 39 | static bool udp_pkt_to_tuple(const struct sk_buff *skb, |
9fb9cbb1 | 40 | unsigned int dataoff, |
a31f1adc | 41 | struct net *net, |
9fb9cbb1 YK |
42 | struct nf_conntrack_tuple *tuple) |
43 | { | |
da3f13c9 JE |
44 | const struct udphdr *hp; |
45 | struct udphdr _hdr; | |
9fb9cbb1 | 46 | |
e5e693ab GF |
47 | /* Actually only need first 4 bytes to get ports. */ |
48 | hp = skb_header_pointer(skb, dataoff, 4, &_hdr); | |
9fb9cbb1 | 49 | if (hp == NULL) |
09f263cd | 50 | return false; |
9fb9cbb1 YK |
51 | |
52 | tuple->src.u.udp.port = hp->source; | |
53 | tuple->dst.u.udp.port = hp->dest; | |
54 | ||
09f263cd | 55 | return true; |
9fb9cbb1 YK |
56 | } |
57 | ||
09f263cd JE |
58 | static bool udp_invert_tuple(struct nf_conntrack_tuple *tuple, |
59 | const struct nf_conntrack_tuple *orig) | |
9fb9cbb1 YK |
60 | { |
61 | tuple->src.u.udp.port = orig->dst.u.udp.port; | |
62 | tuple->dst.u.udp.port = orig->src.u.udp.port; | |
09f263cd | 63 | return true; |
9fb9cbb1 YK |
64 | } |
65 | ||
66 | /* Print out the per-protocol part of the tuple. */ | |
824f1fbe JP |
67 | static void udp_print_tuple(struct seq_file *s, |
68 | const struct nf_conntrack_tuple *tuple) | |
9fb9cbb1 | 69 | { |
824f1fbe JP |
70 | seq_printf(s, "sport=%hu dport=%hu ", |
71 | ntohs(tuple->src.u.udp.port), | |
72 | ntohs(tuple->dst.u.udp.port)); | |
9fb9cbb1 YK |
73 | } |
74 | ||
2c8503f5 PNA |
75 | static unsigned int *udp_get_timeouts(struct net *net) |
76 | { | |
0ce490ad | 77 | return udp_pernet(net)->timeouts; |
2c8503f5 PNA |
78 | } |
79 | ||
9fb9cbb1 | 80 | /* Returns verdict for packet, and may modify conntracktype */ |
c88130bc | 81 | static int udp_packet(struct nf_conn *ct, |
9fb9cbb1 YK |
82 | const struct sk_buff *skb, |
83 | unsigned int dataoff, | |
84 | enum ip_conntrack_info ctinfo, | |
76108cea | 85 | u_int8_t pf, |
2c8503f5 PNA |
86 | unsigned int hooknum, |
87 | unsigned int *timeouts) | |
9fb9cbb1 YK |
88 | { |
89 | /* If we've seen traffic both ways, this is some kind of UDP | |
90 | stream. Extend timeout. */ | |
c88130bc | 91 | if (test_bit(IPS_SEEN_REPLY_BIT, &ct->status)) { |
5a41db94 | 92 | nf_ct_refresh_acct(ct, ctinfo, skb, |
2c8503f5 | 93 | timeouts[UDP_CT_REPLIED]); |
9fb9cbb1 | 94 | /* Also, more likely to be important, and not a probe */ |
c88130bc | 95 | if (!test_and_set_bit(IPS_ASSURED_BIT, &ct->status)) |
858b3133 | 96 | nf_conntrack_event_cache(IPCT_ASSURED, ct); |
5a41db94 PNA |
97 | } else { |
98 | nf_ct_refresh_acct(ct, ctinfo, skb, | |
2c8503f5 | 99 | timeouts[UDP_CT_UNREPLIED]); |
5a41db94 | 100 | } |
9fb9cbb1 YK |
101 | return NF_ACCEPT; |
102 | } | |
103 | ||
104 | /* Called when a new connection for this protocol found. */ | |
09f263cd | 105 | static bool udp_new(struct nf_conn *ct, const struct sk_buff *skb, |
2c8503f5 | 106 | unsigned int dataoff, unsigned int *timeouts) |
9fb9cbb1 | 107 | { |
09f263cd | 108 | return true; |
9fb9cbb1 YK |
109 | } |
110 | ||
e4781421 FW |
111 | #ifdef CONFIG_NF_CT_PROTO_UDPLITE |
112 | static int udplite_error(struct net *net, struct nf_conn *tmpl, | |
113 | struct sk_buff *skb, | |
114 | unsigned int dataoff, | |
e4781421 FW |
115 | u8 pf, unsigned int hooknum) |
116 | { | |
117 | unsigned int udplen = skb->len - dataoff; | |
118 | const struct udphdr *hdr; | |
119 | struct udphdr _hdr; | |
120 | unsigned int cscov; | |
121 | ||
122 | /* Header is too small? */ | |
123 | hdr = skb_header_pointer(skb, dataoff, sizeof(_hdr), &_hdr); | |
124 | if (!hdr) { | |
125 | if (LOG_INVALID(net, IPPROTO_UDPLITE)) | |
126 | nf_log_packet(net, pf, 0, skb, NULL, NULL, NULL, | |
127 | "nf_ct_udplite: short packet "); | |
128 | return -NF_ACCEPT; | |
129 | } | |
130 | ||
131 | cscov = ntohs(hdr->len); | |
132 | if (cscov == 0) { | |
133 | cscov = udplen; | |
134 | } else if (cscov < sizeof(*hdr) || cscov > udplen) { | |
135 | if (LOG_INVALID(net, IPPROTO_UDPLITE)) | |
136 | nf_log_packet(net, pf, 0, skb, NULL, NULL, NULL, | |
137 | "nf_ct_udplite: invalid checksum coverage "); | |
138 | return -NF_ACCEPT; | |
139 | } | |
140 | ||
141 | /* UDPLITE mandates checksums */ | |
142 | if (!hdr->check) { | |
143 | if (LOG_INVALID(net, IPPROTO_UDPLITE)) | |
144 | nf_log_packet(net, pf, 0, skb, NULL, NULL, NULL, | |
145 | "nf_ct_udplite: checksum missing "); | |
146 | return -NF_ACCEPT; | |
147 | } | |
148 | ||
149 | /* Checksum invalid? Ignore. */ | |
150 | if (net->ct.sysctl_checksum && hooknum == NF_INET_PRE_ROUTING && | |
151 | nf_checksum_partial(skb, hooknum, dataoff, cscov, IPPROTO_UDP, | |
152 | pf)) { | |
153 | if (LOG_INVALID(net, IPPROTO_UDPLITE)) | |
154 | nf_log_packet(net, pf, 0, skb, NULL, NULL, NULL, | |
155 | "nf_ct_udplite: bad UDPLite checksum "); | |
156 | return -NF_ACCEPT; | |
157 | } | |
158 | ||
159 | return NF_ACCEPT; | |
160 | } | |
161 | #endif | |
162 | ||
8fea97ec | 163 | static int udp_error(struct net *net, struct nf_conn *tmpl, struct sk_buff *skb, |
11df4b76 | 164 | unsigned int dataoff, |
76108cea | 165 | u_int8_t pf, |
96f6bf82 | 166 | unsigned int hooknum) |
9fb9cbb1 YK |
167 | { |
168 | unsigned int udplen = skb->len - dataoff; | |
da3f13c9 JE |
169 | const struct udphdr *hdr; |
170 | struct udphdr _hdr; | |
9fb9cbb1 YK |
171 | |
172 | /* Header is too small? */ | |
173 | hdr = skb_header_pointer(skb, dataoff, sizeof(_hdr), &_hdr); | |
174 | if (hdr == NULL) { | |
c2a2c7e0 | 175 | if (LOG_INVALID(net, IPPROTO_UDP)) |
30e0c6a6 | 176 | nf_log_packet(net, pf, 0, skb, NULL, NULL, NULL, |
9fb9cbb1 YK |
177 | "nf_ct_udp: short packet "); |
178 | return -NF_ACCEPT; | |
179 | } | |
180 | ||
181 | /* Truncated/malformed packets */ | |
182 | if (ntohs(hdr->len) > udplen || ntohs(hdr->len) < sizeof(*hdr)) { | |
c2a2c7e0 | 183 | if (LOG_INVALID(net, IPPROTO_UDP)) |
30e0c6a6 | 184 | nf_log_packet(net, pf, 0, skb, NULL, NULL, NULL, |
9fb9cbb1 YK |
185 | "nf_ct_udp: truncated/malformed packet "); |
186 | return -NF_ACCEPT; | |
187 | } | |
188 | ||
189 | /* Packet with no checksum */ | |
190 | if (!hdr->check) | |
191 | return NF_ACCEPT; | |
192 | ||
193 | /* Checksum invalid? Ignore. | |
194 | * We skip checking packets on the outgoing path | |
84fa7933 | 195 | * because the checksum is assumed to be correct. |
9fb9cbb1 | 196 | * FIXME: Source route IP option packets --RR */ |
c04d0552 | 197 | if (net->ct.sysctl_checksum && hooknum == NF_INET_PRE_ROUTING && |
96f6bf82 | 198 | nf_checksum(skb, hooknum, dataoff, IPPROTO_UDP, pf)) { |
c2a2c7e0 | 199 | if (LOG_INVALID(net, IPPROTO_UDP)) |
30e0c6a6 | 200 | nf_log_packet(net, pf, 0, skb, NULL, NULL, NULL, |
9fb9cbb1 YK |
201 | "nf_ct_udp: bad UDP checksum "); |
202 | return -NF_ACCEPT; | |
203 | } | |
204 | ||
205 | return NF_ACCEPT; | |
206 | } | |
207 | ||
50978462 PNA |
208 | #if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) |
209 | ||
210 | #include <linux/netfilter/nfnetlink.h> | |
211 | #include <linux/netfilter/nfnetlink_cttimeout.h> | |
212 | ||
8264deb8 G |
213 | static int udp_timeout_nlattr_to_obj(struct nlattr *tb[], |
214 | struct net *net, void *data) | |
50978462 PNA |
215 | { |
216 | unsigned int *timeouts = data; | |
8264deb8 | 217 | struct nf_udp_net *un = udp_pernet(net); |
50978462 PNA |
218 | |
219 | /* set default timeouts for UDP. */ | |
8264deb8 G |
220 | timeouts[UDP_CT_UNREPLIED] = un->timeouts[UDP_CT_UNREPLIED]; |
221 | timeouts[UDP_CT_REPLIED] = un->timeouts[UDP_CT_REPLIED]; | |
50978462 PNA |
222 | |
223 | if (tb[CTA_TIMEOUT_UDP_UNREPLIED]) { | |
224 | timeouts[UDP_CT_UNREPLIED] = | |
225 | ntohl(nla_get_be32(tb[CTA_TIMEOUT_UDP_UNREPLIED])) * HZ; | |
226 | } | |
227 | if (tb[CTA_TIMEOUT_UDP_REPLIED]) { | |
228 | timeouts[UDP_CT_REPLIED] = | |
229 | ntohl(nla_get_be32(tb[CTA_TIMEOUT_UDP_REPLIED])) * HZ; | |
230 | } | |
231 | return 0; | |
232 | } | |
233 | ||
234 | static int | |
235 | udp_timeout_obj_to_nlattr(struct sk_buff *skb, const void *data) | |
236 | { | |
237 | const unsigned int *timeouts = data; | |
238 | ||
3c60a17b DM |
239 | if (nla_put_be32(skb, CTA_TIMEOUT_UDP_UNREPLIED, |
240 | htonl(timeouts[UDP_CT_UNREPLIED] / HZ)) || | |
241 | nla_put_be32(skb, CTA_TIMEOUT_UDP_REPLIED, | |
242 | htonl(timeouts[UDP_CT_REPLIED] / HZ))) | |
243 | goto nla_put_failure; | |
50978462 PNA |
244 | return 0; |
245 | ||
246 | nla_put_failure: | |
247 | return -ENOSPC; | |
248 | } | |
249 | ||
250 | static const struct nla_policy | |
251 | udp_timeout_nla_policy[CTA_TIMEOUT_UDP_MAX+1] = { | |
252 | [CTA_TIMEOUT_UDP_UNREPLIED] = { .type = NLA_U32 }, | |
253 | [CTA_TIMEOUT_UDP_REPLIED] = { .type = NLA_U32 }, | |
254 | }; | |
255 | #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ | |
256 | ||
933a41e7 | 257 | #ifdef CONFIG_SYSCTL |
933a41e7 PM |
258 | static struct ctl_table udp_sysctl_table[] = { |
259 | { | |
933a41e7 | 260 | .procname = "nf_conntrack_udp_timeout", |
933a41e7 PM |
261 | .maxlen = sizeof(unsigned int), |
262 | .mode = 0644, | |
6d9f239a | 263 | .proc_handler = proc_dointvec_jiffies, |
933a41e7 PM |
264 | }, |
265 | { | |
933a41e7 | 266 | .procname = "nf_conntrack_udp_timeout_stream", |
933a41e7 PM |
267 | .maxlen = sizeof(unsigned int), |
268 | .mode = 0644, | |
6d9f239a | 269 | .proc_handler = proc_dointvec_jiffies, |
933a41e7 | 270 | }, |
f8572d8f | 271 | { } |
933a41e7 PM |
272 | }; |
273 | #endif /* CONFIG_SYSCTL */ | |
274 | ||
dee7364e G |
275 | static int udp_kmemdup_sysctl_table(struct nf_proto_net *pn, |
276 | struct nf_udp_net *un) | |
0ce490ad G |
277 | { |
278 | #ifdef CONFIG_SYSCTL | |
0ce490ad G |
279 | if (pn->ctl_table) |
280 | return 0; | |
281 | pn->ctl_table = kmemdup(udp_sysctl_table, | |
282 | sizeof(udp_sysctl_table), | |
283 | GFP_KERNEL); | |
284 | if (!pn->ctl_table) | |
285 | return -ENOMEM; | |
286 | pn->ctl_table[0].data = &un->timeouts[UDP_CT_UNREPLIED]; | |
287 | pn->ctl_table[1].data = &un->timeouts[UDP_CT_REPLIED]; | |
288 | #endif | |
289 | return 0; | |
290 | } | |
291 | ||
dee7364e | 292 | static int udp_init_net(struct net *net, u_int16_t proto) |
0ce490ad | 293 | { |
0ce490ad | 294 | struct nf_udp_net *un = udp_pernet(net); |
dee7364e | 295 | struct nf_proto_net *pn = &un->pn; |
0ce490ad | 296 | |
dee7364e G |
297 | if (!pn->users) { |
298 | int i; | |
0ce490ad | 299 | |
dee7364e G |
300 | for (i = 0; i < UDP_CT_MAX; i++) |
301 | un->timeouts[i] = udp_timeouts[i]; | |
0ce490ad | 302 | } |
0ce490ad | 303 | |
adf05168 | 304 | return udp_kmemdup_sysctl_table(pn, un); |
0ce490ad G |
305 | } |
306 | ||
08911475 PNA |
307 | static struct nf_proto_net *udp_get_net_proto(struct net *net) |
308 | { | |
309 | return &net->ct.nf_ct_proto.udp.pn; | |
310 | } | |
311 | ||
61075af5 | 312 | struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4 __read_mostly = |
9fb9cbb1 YK |
313 | { |
314 | .l3proto = PF_INET, | |
605dcad6 | 315 | .l4proto = IPPROTO_UDP, |
9fb9cbb1 | 316 | .name = "udp", |
71d8c47f | 317 | .allow_clash = true, |
9fb9cbb1 YK |
318 | .pkt_to_tuple = udp_pkt_to_tuple, |
319 | .invert_tuple = udp_invert_tuple, | |
320 | .print_tuple = udp_print_tuple, | |
9fb9cbb1 | 321 | .packet = udp_packet, |
2c8503f5 | 322 | .get_timeouts = udp_get_timeouts, |
9fb9cbb1 | 323 | .new = udp_new, |
96f6bf82 | 324 | .error = udp_error, |
c0cd1156 | 325 | #if IS_ENABLED(CONFIG_NF_CT_NETLINK) |
fdf70832 PM |
326 | .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, |
327 | .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, | |
a400c30e | 328 | .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size, |
f73e924c | 329 | .nla_policy = nf_ct_port_nla_policy, |
c1d10adb | 330 | #endif |
50978462 PNA |
331 | #if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) |
332 | .ctnl_timeout = { | |
333 | .nlattr_to_obj = udp_timeout_nlattr_to_obj, | |
334 | .obj_to_nlattr = udp_timeout_obj_to_nlattr, | |
335 | .nlattr_max = CTA_TIMEOUT_UDP_MAX, | |
336 | .obj_size = sizeof(unsigned int) * CTA_TIMEOUT_UDP_MAX, | |
337 | .nla_policy = udp_timeout_nla_policy, | |
338 | }, | |
339 | #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ | |
dee7364e | 340 | .init_net = udp_init_net, |
08911475 | 341 | .get_net_proto = udp_get_net_proto, |
9fb9cbb1 | 342 | }; |
13b18339 | 343 | EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_udp4); |
9fb9cbb1 | 344 | |
e4781421 FW |
345 | #ifdef CONFIG_NF_CT_PROTO_UDPLITE |
346 | struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite4 __read_mostly = | |
347 | { | |
348 | .l3proto = PF_INET, | |
349 | .l4proto = IPPROTO_UDPLITE, | |
350 | .name = "udplite", | |
351 | .allow_clash = true, | |
352 | .pkt_to_tuple = udp_pkt_to_tuple, | |
353 | .invert_tuple = udp_invert_tuple, | |
354 | .print_tuple = udp_print_tuple, | |
355 | .packet = udp_packet, | |
356 | .get_timeouts = udp_get_timeouts, | |
357 | .new = udp_new, | |
358 | .error = udplite_error, | |
359 | #if IS_ENABLED(CONFIG_NF_CT_NETLINK) | |
360 | .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, | |
361 | .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, | |
362 | .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size, | |
363 | .nla_policy = nf_ct_port_nla_policy, | |
364 | #endif | |
365 | #if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) | |
366 | .ctnl_timeout = { | |
367 | .nlattr_to_obj = udp_timeout_nlattr_to_obj, | |
368 | .obj_to_nlattr = udp_timeout_obj_to_nlattr, | |
369 | .nlattr_max = CTA_TIMEOUT_UDP_MAX, | |
370 | .obj_size = sizeof(unsigned int) * CTA_TIMEOUT_UDP_MAX, | |
371 | .nla_policy = udp_timeout_nla_policy, | |
372 | }, | |
373 | #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ | |
374 | .init_net = udp_init_net, | |
375 | .get_net_proto = udp_get_net_proto, | |
376 | }; | |
377 | EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_udplite4); | |
378 | #endif | |
379 | ||
61075af5 | 380 | struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6 __read_mostly = |
9fb9cbb1 YK |
381 | { |
382 | .l3proto = PF_INET6, | |
605dcad6 | 383 | .l4proto = IPPROTO_UDP, |
9fb9cbb1 | 384 | .name = "udp", |
71d8c47f | 385 | .allow_clash = true, |
9fb9cbb1 YK |
386 | .pkt_to_tuple = udp_pkt_to_tuple, |
387 | .invert_tuple = udp_invert_tuple, | |
388 | .print_tuple = udp_print_tuple, | |
9fb9cbb1 | 389 | .packet = udp_packet, |
2c8503f5 | 390 | .get_timeouts = udp_get_timeouts, |
9fb9cbb1 | 391 | .new = udp_new, |
96f6bf82 | 392 | .error = udp_error, |
c0cd1156 | 393 | #if IS_ENABLED(CONFIG_NF_CT_NETLINK) |
fdf70832 PM |
394 | .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, |
395 | .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, | |
a400c30e | 396 | .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size, |
f73e924c | 397 | .nla_policy = nf_ct_port_nla_policy, |
c1d10adb | 398 | #endif |
50978462 PNA |
399 | #if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) |
400 | .ctnl_timeout = { | |
401 | .nlattr_to_obj = udp_timeout_nlattr_to_obj, | |
402 | .obj_to_nlattr = udp_timeout_obj_to_nlattr, | |
403 | .nlattr_max = CTA_TIMEOUT_UDP_MAX, | |
404 | .obj_size = sizeof(unsigned int) * CTA_TIMEOUT_UDP_MAX, | |
405 | .nla_policy = udp_timeout_nla_policy, | |
406 | }, | |
407 | #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ | |
dee7364e | 408 | .init_net = udp_init_net, |
08911475 | 409 | .get_net_proto = udp_get_net_proto, |
9fb9cbb1 | 410 | }; |
13b18339 | 411 | EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_udp6); |
e4781421 FW |
412 | |
413 | #ifdef CONFIG_NF_CT_PROTO_UDPLITE | |
414 | struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite6 __read_mostly = | |
415 | { | |
416 | .l3proto = PF_INET6, | |
417 | .l4proto = IPPROTO_UDPLITE, | |
418 | .name = "udplite", | |
419 | .allow_clash = true, | |
420 | .pkt_to_tuple = udp_pkt_to_tuple, | |
421 | .invert_tuple = udp_invert_tuple, | |
422 | .print_tuple = udp_print_tuple, | |
423 | .packet = udp_packet, | |
424 | .get_timeouts = udp_get_timeouts, | |
425 | .new = udp_new, | |
426 | .error = udplite_error, | |
427 | #if IS_ENABLED(CONFIG_NF_CT_NETLINK) | |
428 | .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, | |
429 | .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, | |
430 | .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size, | |
431 | .nla_policy = nf_ct_port_nla_policy, | |
432 | #endif | |
433 | #if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) | |
434 | .ctnl_timeout = { | |
435 | .nlattr_to_obj = udp_timeout_nlattr_to_obj, | |
436 | .obj_to_nlattr = udp_timeout_obj_to_nlattr, | |
437 | .nlattr_max = CTA_TIMEOUT_UDP_MAX, | |
438 | .obj_size = sizeof(unsigned int) * CTA_TIMEOUT_UDP_MAX, | |
439 | .nla_policy = udp_timeout_nla_policy, | |
440 | }, | |
441 | #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ | |
442 | .init_net = udp_init_net, | |
443 | .get_net_proto = udp_get_net_proto, | |
444 | }; | |
445 | EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_udplite6); | |
446 | #endif |