Commit | Line | Data |
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7c3ad056 OS |
1 | /* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> |
2 | * | |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License version 2 as | |
5 | * published by the Free Software Foundation. | |
6 | */ | |
7 | ||
8 | /* Kernel module implementing an IP set type: the hash:ip,port,net type */ | |
9 | ||
10 | #include <linux/jhash.h> | |
11 | #include <linux/module.h> | |
12 | #include <linux/ip.h> | |
13 | #include <linux/skbuff.h> | |
14 | #include <linux/errno.h> | |
15 | #include <linux/random.h> | |
16 | #include <net/ip.h> | |
17 | #include <net/ipv6.h> | |
18 | #include <net/netlink.h> | |
19 | #include <net/tcp.h> | |
20 | ||
21 | #include <linux/netfilter.h> | |
22 | #include <linux/netfilter/ipset/pfxlen.h> | |
23 | #include <linux/netfilter/ipset/ip_set.h> | |
24 | #include <linux/netfilter/ipset/ip_set_getport.h> | |
25 | #include <linux/netfilter/ipset/ip_set_hash.h> | |
26 | ||
27 | #define IPSET_TYPE_REV_MIN 0 | |
07cf8f5a | 28 | /* 0 Comments support added */ |
af331419 AD |
29 | /* 1 Forceadd support added */ |
30 | #define IPSET_TYPE_REV_MAX 2 /* skbinfo support added */ | |
7c3ad056 OS |
31 | |
32 | MODULE_LICENSE("GPL"); | |
33 | MODULE_AUTHOR("Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>"); | |
34 | IP_SET_MODULE_DESC("hash:net,port,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX); | |
35 | MODULE_ALIAS("ip_set_hash:net,port,net"); | |
36 | ||
37 | /* Type specific function prefix */ | |
38 | #define HTYPE hash_netportnet | |
39 | #define IP_SET_HASH_WITH_PROTO | |
40 | #define IP_SET_HASH_WITH_NETS | |
41 | #define IPSET_NET_COUNT 2 | |
42 | ||
43 | /* IPv4 variant */ | |
44 | ||
45 | /* Member elements */ | |
46 | struct hash_netportnet4_elem { | |
47 | union { | |
48 | __be32 ip[2]; | |
49 | __be64 ipcmp; | |
50 | }; | |
51 | __be16 port; | |
52 | union { | |
53 | u8 cidr[2]; | |
54 | u16 ccmp; | |
55 | }; | |
cac37639 | 56 | u16 padding; |
2b67d6e0 | 57 | u8 nomatch; |
7c3ad056 OS |
58 | u8 proto; |
59 | }; | |
60 | ||
61 | /* Common functions */ | |
62 | ||
63 | static inline bool | |
64 | hash_netportnet4_data_equal(const struct hash_netportnet4_elem *ip1, | |
ca0f6a5c JK |
65 | const struct hash_netportnet4_elem *ip2, |
66 | u32 *multi) | |
7c3ad056 OS |
67 | { |
68 | return ip1->ipcmp == ip2->ipcmp && | |
69 | ip1->ccmp == ip2->ccmp && | |
70 | ip1->port == ip2->port && | |
71 | ip1->proto == ip2->proto; | |
72 | } | |
73 | ||
74 | static inline int | |
75 | hash_netportnet4_do_data_match(const struct hash_netportnet4_elem *elem) | |
76 | { | |
77 | return elem->nomatch ? -ENOTEMPTY : 1; | |
78 | } | |
79 | ||
80 | static inline void | |
81 | hash_netportnet4_data_set_flags(struct hash_netportnet4_elem *elem, u32 flags) | |
82 | { | |
83 | elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH); | |
84 | } | |
85 | ||
86 | static inline void | |
87 | hash_netportnet4_data_reset_flags(struct hash_netportnet4_elem *elem, u8 *flags) | |
88 | { | |
89 | swap(*flags, elem->nomatch); | |
90 | } | |
91 | ||
92 | static inline void | |
93 | hash_netportnet4_data_reset_elem(struct hash_netportnet4_elem *elem, | |
ca0f6a5c | 94 | struct hash_netportnet4_elem *orig) |
7c3ad056 OS |
95 | { |
96 | elem->ip[1] = orig->ip[1]; | |
97 | } | |
98 | ||
99 | static inline void | |
100 | hash_netportnet4_data_netmask(struct hash_netportnet4_elem *elem, | |
101 | u8 cidr, bool inner) | |
102 | { | |
103 | if (inner) { | |
104 | elem->ip[1] &= ip_set_netmask(cidr); | |
105 | elem->cidr[1] = cidr; | |
106 | } else { | |
107 | elem->ip[0] &= ip_set_netmask(cidr); | |
108 | elem->cidr[0] = cidr; | |
109 | } | |
110 | } | |
111 | ||
112 | static bool | |
113 | hash_netportnet4_data_list(struct sk_buff *skb, | |
ca0f6a5c | 114 | const struct hash_netportnet4_elem *data) |
7c3ad056 OS |
115 | { |
116 | u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0; | |
117 | ||
118 | if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip[0]) || | |
119 | nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip[1]) || | |
120 | nla_put_net16(skb, IPSET_ATTR_PORT, data->port) || | |
121 | nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) || | |
122 | nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) || | |
123 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) || | |
124 | (flags && | |
125 | nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags)))) | |
126 | goto nla_put_failure; | |
728a7e69 | 127 | return false; |
7c3ad056 OS |
128 | |
129 | nla_put_failure: | |
728a7e69 | 130 | return true; |
7c3ad056 OS |
131 | } |
132 | ||
133 | static inline void | |
134 | hash_netportnet4_data_next(struct hash_netportnet4_elem *next, | |
ca0f6a5c | 135 | const struct hash_netportnet4_elem *d) |
7c3ad056 OS |
136 | { |
137 | next->ipcmp = d->ipcmp; | |
138 | next->port = d->port; | |
139 | } | |
140 | ||
141 | #define MTYPE hash_netportnet4 | |
7c3ad056 OS |
142 | #define HOST_MASK 32 |
143 | #include "ip_set_hash_gen.h" | |
144 | ||
96be5f28 ER |
145 | static void |
146 | hash_netportnet4_init(struct hash_netportnet4_elem *e) | |
147 | { | |
148 | e->cidr[0] = HOST_MASK; | |
149 | e->cidr[1] = HOST_MASK; | |
150 | } | |
151 | ||
7c3ad056 OS |
152 | static int |
153 | hash_netportnet4_kadt(struct ip_set *set, const struct sk_buff *skb, | |
ca0f6a5c JK |
154 | const struct xt_action_param *par, |
155 | enum ipset_adt adt, struct ip_set_adt_opt *opt) | |
7c3ad056 OS |
156 | { |
157 | const struct hash_netportnet *h = set->data; | |
158 | ipset_adtfn adtfn = set->variant->adt[adt]; | |
1a869205 | 159 | struct hash_netportnet4_elem e = { }; |
7c3ad056 OS |
160 | struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set); |
161 | ||
f690cbae JK |
162 | e.cidr[0] = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK); |
163 | e.cidr[1] = INIT_CIDR(h->nets[0].cidr[1], HOST_MASK); | |
7c3ad056 OS |
164 | if (adt == IPSET_TEST) |
165 | e.ccmp = (HOST_MASK << (sizeof(e.cidr[0]) * 8)) | HOST_MASK; | |
166 | ||
167 | if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC, | |
168 | &e.port, &e.proto)) | |
169 | return -EINVAL; | |
170 | ||
171 | ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0]); | |
172 | ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1]); | |
173 | e.ip[0] &= ip_set_netmask(e.cidr[0]); | |
174 | e.ip[1] &= ip_set_netmask(e.cidr[1]); | |
175 | ||
176 | return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); | |
177 | } | |
178 | ||
179 | static int | |
180 | hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[], | |
ca0f6a5c | 181 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
7c3ad056 OS |
182 | { |
183 | const struct hash_netportnet *h = set->data; | |
184 | ipset_adtfn adtfn = set->variant->adt[adt]; | |
96be5f28 | 185 | struct hash_netportnet4_elem e = { }; |
7c3ad056 OS |
186 | struct ip_set_ext ext = IP_SET_INIT_UEXT(set); |
187 | u32 ip = 0, ip_to = 0, ip_last, p = 0, port, port_to; | |
188 | u32 ip2_from = 0, ip2_to = 0, ip2_last, ip2; | |
189 | bool with_ports = false; | |
7c3ad056 OS |
190 | int ret; |
191 | ||
a212e08e SP |
192 | if (tb[IPSET_ATTR_LINENO]) |
193 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); | |
194 | ||
96be5f28 | 195 | hash_netportnet4_init(&e); |
7c3ad056 OS |
196 | if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] || |
197 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || | |
198 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || | |
7dd37bc8 | 199 | !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS))) |
7c3ad056 OS |
200 | return -IPSET_ERR_PROTOCOL; |
201 | ||
8e55d2e5 SP |
202 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip); |
203 | if (ret) | |
204 | return ret; | |
205 | ||
206 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from); | |
207 | if (ret) | |
208 | return ret; | |
209 | ||
210 | ret = ip_set_get_extensions(set, tb, &ext); | |
7c3ad056 OS |
211 | if (ret) |
212 | return ret; | |
213 | ||
214 | if (tb[IPSET_ATTR_CIDR]) { | |
aff22758 SP |
215 | e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]); |
216 | if (!e.cidr[0] || e.cidr[0] > HOST_MASK) | |
7c3ad056 | 217 | return -IPSET_ERR_INVALID_CIDR; |
7c3ad056 OS |
218 | } |
219 | ||
220 | if (tb[IPSET_ATTR_CIDR2]) { | |
aff22758 SP |
221 | e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]); |
222 | if (!e.cidr[1] || e.cidr[1] > HOST_MASK) | |
7c3ad056 | 223 | return -IPSET_ERR_INVALID_CIDR; |
7c3ad056 OS |
224 | } |
225 | ||
d25472e4 | 226 | e.port = nla_get_be16(tb[IPSET_ATTR_PORT]); |
7c3ad056 OS |
227 | |
228 | if (tb[IPSET_ATTR_PROTO]) { | |
229 | e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]); | |
230 | with_ports = ip_set_proto_with_ports(e.proto); | |
231 | ||
232 | if (e.proto == 0) | |
233 | return -IPSET_ERR_INVALID_PROTO; | |
ca0f6a5c | 234 | } else { |
7c3ad056 | 235 | return -IPSET_ERR_MISSING_PROTO; |
ca0f6a5c | 236 | } |
7c3ad056 OS |
237 | |
238 | if (!(with_ports || e.proto == IPPROTO_ICMP)) | |
239 | e.port = 0; | |
240 | ||
241 | if (tb[IPSET_ATTR_CADT_FLAGS]) { | |
242 | u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]); | |
ca0f6a5c | 243 | |
7c3ad056 OS |
244 | if (cadt_flags & IPSET_FLAG_NOMATCH) |
245 | flags |= (IPSET_FLAG_NOMATCH << 16); | |
246 | } | |
247 | ||
248 | with_ports = with_ports && tb[IPSET_ATTR_PORT_TO]; | |
249 | if (adt == IPSET_TEST || | |
250 | !(tb[IPSET_ATTR_IP_TO] || with_ports || tb[IPSET_ATTR_IP2_TO])) { | |
251 | e.ip[0] = htonl(ip & ip_set_hostmask(e.cidr[0])); | |
252 | e.ip[1] = htonl(ip2_from & ip_set_hostmask(e.cidr[1])); | |
253 | ret = adtfn(set, &e, &ext, &ext, flags); | |
254 | return ip_set_enomatch(ret, flags, adt, set) ? -ret : | |
255 | ip_set_eexist(ret, flags) ? 0 : ret; | |
256 | } | |
257 | ||
258 | ip_to = ip; | |
259 | if (tb[IPSET_ATTR_IP_TO]) { | |
260 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to); | |
261 | if (ret) | |
262 | return ret; | |
263 | if (ip > ip_to) | |
264 | swap(ip, ip_to); | |
265 | if (unlikely(ip + UINT_MAX == ip_to)) | |
266 | return -IPSET_ERR_HASH_RANGE; | |
ca0f6a5c | 267 | } else { |
6e41ee68 | 268 | ip_set_mask_from_to(ip, ip_to, e.cidr[0]); |
ca0f6a5c | 269 | } |
7c3ad056 OS |
270 | |
271 | port_to = port = ntohs(e.port); | |
272 | if (tb[IPSET_ATTR_PORT_TO]) { | |
273 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); | |
274 | if (port > port_to) | |
275 | swap(port, port_to); | |
276 | } | |
277 | ||
278 | ip2_to = ip2_from; | |
279 | if (tb[IPSET_ATTR_IP2_TO]) { | |
280 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to); | |
281 | if (ret) | |
282 | return ret; | |
283 | if (ip2_from > ip2_to) | |
284 | swap(ip2_from, ip2_to); | |
285 | if (unlikely(ip2_from + UINT_MAX == ip2_to)) | |
286 | return -IPSET_ERR_HASH_RANGE; | |
ca0f6a5c | 287 | } else { |
6e41ee68 | 288 | ip_set_mask_from_to(ip2_from, ip2_to, e.cidr[1]); |
ca0f6a5c | 289 | } |
7c3ad056 OS |
290 | |
291 | if (retried) | |
292 | ip = ntohl(h->next.ip[0]); | |
293 | ||
294 | while (!after(ip, ip_to)) { | |
295 | e.ip[0] = htonl(ip); | |
aff22758 | 296 | ip_last = ip_set_range_to_cidr(ip, ip_to, &e.cidr[0]); |
7c3ad056 OS |
297 | p = retried && ip == ntohl(h->next.ip[0]) ? ntohs(h->next.port) |
298 | : port; | |
299 | for (; p <= port_to; p++) { | |
300 | e.port = htons(p); | |
301 | ip2 = (retried && ip == ntohl(h->next.ip[0]) && | |
302 | p == ntohs(h->next.port)) ? ntohl(h->next.ip[1]) | |
303 | : ip2_from; | |
304 | while (!after(ip2, ip2_to)) { | |
305 | e.ip[1] = htonl(ip2); | |
306 | ip2_last = ip_set_range_to_cidr(ip2, ip2_to, | |
aff22758 | 307 | &e.cidr[1]); |
7c3ad056 OS |
308 | ret = adtfn(set, &e, &ext, &ext, flags); |
309 | if (ret && !ip_set_eexist(ret, flags)) | |
310 | return ret; | |
ca0f6a5c JK |
311 | |
312 | ret = 0; | |
7c3ad056 OS |
313 | ip2 = ip2_last + 1; |
314 | } | |
315 | } | |
316 | ip = ip_last + 1; | |
317 | } | |
318 | return ret; | |
319 | } | |
320 | ||
321 | /* IPv6 variant */ | |
322 | ||
323 | struct hash_netportnet6_elem { | |
324 | union nf_inet_addr ip[2]; | |
325 | __be16 port; | |
326 | union { | |
327 | u8 cidr[2]; | |
328 | u16 ccmp; | |
329 | }; | |
cac37639 | 330 | u16 padding; |
2b67d6e0 | 331 | u8 nomatch; |
7c3ad056 OS |
332 | u8 proto; |
333 | }; | |
334 | ||
335 | /* Common functions */ | |
336 | ||
337 | static inline bool | |
338 | hash_netportnet6_data_equal(const struct hash_netportnet6_elem *ip1, | |
ca0f6a5c JK |
339 | const struct hash_netportnet6_elem *ip2, |
340 | u32 *multi) | |
7c3ad056 OS |
341 | { |
342 | return ipv6_addr_equal(&ip1->ip[0].in6, &ip2->ip[0].in6) && | |
343 | ipv6_addr_equal(&ip1->ip[1].in6, &ip2->ip[1].in6) && | |
344 | ip1->ccmp == ip2->ccmp && | |
345 | ip1->port == ip2->port && | |
346 | ip1->proto == ip2->proto; | |
347 | } | |
348 | ||
349 | static inline int | |
350 | hash_netportnet6_do_data_match(const struct hash_netportnet6_elem *elem) | |
351 | { | |
352 | return elem->nomatch ? -ENOTEMPTY : 1; | |
353 | } | |
354 | ||
355 | static inline void | |
356 | hash_netportnet6_data_set_flags(struct hash_netportnet6_elem *elem, u32 flags) | |
357 | { | |
358 | elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH); | |
359 | } | |
360 | ||
361 | static inline void | |
362 | hash_netportnet6_data_reset_flags(struct hash_netportnet6_elem *elem, u8 *flags) | |
363 | { | |
364 | swap(*flags, elem->nomatch); | |
365 | } | |
366 | ||
367 | static inline void | |
368 | hash_netportnet6_data_reset_elem(struct hash_netportnet6_elem *elem, | |
ca0f6a5c | 369 | struct hash_netportnet6_elem *orig) |
7c3ad056 OS |
370 | { |
371 | elem->ip[1] = orig->ip[1]; | |
372 | } | |
373 | ||
374 | static inline void | |
375 | hash_netportnet6_data_netmask(struct hash_netportnet6_elem *elem, | |
376 | u8 cidr, bool inner) | |
377 | { | |
378 | if (inner) { | |
379 | ip6_netmask(&elem->ip[1], cidr); | |
380 | elem->cidr[1] = cidr; | |
381 | } else { | |
382 | ip6_netmask(&elem->ip[0], cidr); | |
383 | elem->cidr[0] = cidr; | |
384 | } | |
385 | } | |
386 | ||
387 | static bool | |
388 | hash_netportnet6_data_list(struct sk_buff *skb, | |
ca0f6a5c | 389 | const struct hash_netportnet6_elem *data) |
7c3ad056 OS |
390 | { |
391 | u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0; | |
392 | ||
393 | if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip[0].in6) || | |
394 | nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip[1].in6) || | |
395 | nla_put_net16(skb, IPSET_ATTR_PORT, data->port) || | |
396 | nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) || | |
397 | nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) || | |
398 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) || | |
399 | (flags && | |
400 | nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags)))) | |
401 | goto nla_put_failure; | |
728a7e69 | 402 | return false; |
7c3ad056 OS |
403 | |
404 | nla_put_failure: | |
728a7e69 | 405 | return true; |
7c3ad056 OS |
406 | } |
407 | ||
408 | static inline void | |
409 | hash_netportnet6_data_next(struct hash_netportnet4_elem *next, | |
ca0f6a5c | 410 | const struct hash_netportnet6_elem *d) |
7c3ad056 OS |
411 | { |
412 | next->port = d->port; | |
413 | } | |
414 | ||
415 | #undef MTYPE | |
7c3ad056 OS |
416 | #undef HOST_MASK |
417 | ||
418 | #define MTYPE hash_netportnet6 | |
7c3ad056 OS |
419 | #define HOST_MASK 128 |
420 | #define IP_SET_EMIT_CREATE | |
421 | #include "ip_set_hash_gen.h" | |
422 | ||
96be5f28 ER |
423 | static void |
424 | hash_netportnet6_init(struct hash_netportnet6_elem *e) | |
425 | { | |
426 | e->cidr[0] = HOST_MASK; | |
427 | e->cidr[1] = HOST_MASK; | |
428 | } | |
429 | ||
7c3ad056 OS |
430 | static int |
431 | hash_netportnet6_kadt(struct ip_set *set, const struct sk_buff *skb, | |
ca0f6a5c JK |
432 | const struct xt_action_param *par, |
433 | enum ipset_adt adt, struct ip_set_adt_opt *opt) | |
7c3ad056 OS |
434 | { |
435 | const struct hash_netportnet *h = set->data; | |
436 | ipset_adtfn adtfn = set->variant->adt[adt]; | |
1a869205 | 437 | struct hash_netportnet6_elem e = { }; |
7c3ad056 OS |
438 | struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set); |
439 | ||
f690cbae JK |
440 | e.cidr[0] = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK); |
441 | e.cidr[1] = INIT_CIDR(h->nets[0].cidr[1], HOST_MASK); | |
7c3ad056 OS |
442 | if (adt == IPSET_TEST) |
443 | e.ccmp = (HOST_MASK << (sizeof(u8) * 8)) | HOST_MASK; | |
444 | ||
445 | if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC, | |
446 | &e.port, &e.proto)) | |
447 | return -EINVAL; | |
448 | ||
449 | ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0].in6); | |
450 | ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1].in6); | |
451 | ip6_netmask(&e.ip[0], e.cidr[0]); | |
452 | ip6_netmask(&e.ip[1], e.cidr[1]); | |
453 | ||
454 | return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); | |
455 | } | |
456 | ||
457 | static int | |
458 | hash_netportnet6_uadt(struct ip_set *set, struct nlattr *tb[], | |
ca0f6a5c | 459 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
7c3ad056 OS |
460 | { |
461 | const struct hash_netportnet *h = set->data; | |
462 | ipset_adtfn adtfn = set->variant->adt[adt]; | |
96be5f28 | 463 | struct hash_netportnet6_elem e = { }; |
7c3ad056 OS |
464 | struct ip_set_ext ext = IP_SET_INIT_UEXT(set); |
465 | u32 port, port_to; | |
466 | bool with_ports = false; | |
467 | int ret; | |
468 | ||
a212e08e SP |
469 | if (tb[IPSET_ATTR_LINENO]) |
470 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); | |
471 | ||
96be5f28 | 472 | hash_netportnet6_init(&e); |
7c3ad056 OS |
473 | if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] || |
474 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || | |
475 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || | |
7dd37bc8 | 476 | !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS))) |
7c3ad056 OS |
477 | return -IPSET_ERR_PROTOCOL; |
478 | if (unlikely(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_IP2_TO])) | |
479 | return -IPSET_ERR_HASH_RANGE_UNSUPPORTED; | |
480 | ||
8e55d2e5 SP |
481 | ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip[0]); |
482 | if (ret) | |
483 | return ret; | |
484 | ||
485 | ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip[1]); | |
486 | if (ret) | |
487 | return ret; | |
488 | ||
489 | ret = ip_set_get_extensions(set, tb, &ext); | |
7c3ad056 OS |
490 | if (ret) |
491 | return ret; | |
492 | ||
aff22758 | 493 | if (tb[IPSET_ATTR_CIDR]) { |
7c3ad056 | 494 | e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]); |
aff22758 SP |
495 | if (!e.cidr[0] || e.cidr[0] > HOST_MASK) |
496 | return -IPSET_ERR_INVALID_CIDR; | |
497 | } | |
7c3ad056 | 498 | |
aff22758 | 499 | if (tb[IPSET_ATTR_CIDR2]) { |
7c3ad056 | 500 | e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]); |
aff22758 SP |
501 | if (!e.cidr[1] || e.cidr[1] > HOST_MASK) |
502 | return -IPSET_ERR_INVALID_CIDR; | |
503 | } | |
7c3ad056 OS |
504 | |
505 | ip6_netmask(&e.ip[0], e.cidr[0]); | |
506 | ip6_netmask(&e.ip[1], e.cidr[1]); | |
507 | ||
d25472e4 | 508 | e.port = nla_get_be16(tb[IPSET_ATTR_PORT]); |
7c3ad056 OS |
509 | |
510 | if (tb[IPSET_ATTR_PROTO]) { | |
511 | e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]); | |
512 | with_ports = ip_set_proto_with_ports(e.proto); | |
513 | ||
514 | if (e.proto == 0) | |
515 | return -IPSET_ERR_INVALID_PROTO; | |
ca0f6a5c | 516 | } else { |
7c3ad056 | 517 | return -IPSET_ERR_MISSING_PROTO; |
ca0f6a5c | 518 | } |
7c3ad056 OS |
519 | |
520 | if (!(with_ports || e.proto == IPPROTO_ICMPV6)) | |
521 | e.port = 0; | |
522 | ||
523 | if (tb[IPSET_ATTR_CADT_FLAGS]) { | |
524 | u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]); | |
ca0f6a5c | 525 | |
7c3ad056 OS |
526 | if (cadt_flags & IPSET_FLAG_NOMATCH) |
527 | flags |= (IPSET_FLAG_NOMATCH << 16); | |
528 | } | |
529 | ||
530 | if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) { | |
531 | ret = adtfn(set, &e, &ext, &ext, flags); | |
532 | return ip_set_enomatch(ret, flags, adt, set) ? -ret : | |
533 | ip_set_eexist(ret, flags) ? 0 : ret; | |
534 | } | |
535 | ||
536 | port = ntohs(e.port); | |
537 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); | |
538 | if (port > port_to) | |
539 | swap(port, port_to); | |
540 | ||
541 | if (retried) | |
542 | port = ntohs(h->next.port); | |
543 | for (; port <= port_to; port++) { | |
544 | e.port = htons(port); | |
545 | ret = adtfn(set, &e, &ext, &ext, flags); | |
546 | ||
547 | if (ret && !ip_set_eexist(ret, flags)) | |
548 | return ret; | |
ca0f6a5c JK |
549 | |
550 | ret = 0; | |
7c3ad056 OS |
551 | } |
552 | return ret; | |
553 | } | |
554 | ||
555 | static struct ip_set_type hash_netportnet_type __read_mostly = { | |
556 | .name = "hash:net,port,net", | |
557 | .protocol = IPSET_PROTOCOL, | |
558 | .features = IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2 | | |
559 | IPSET_TYPE_NOMATCH, | |
560 | .dimension = IPSET_DIM_THREE, | |
561 | .family = NFPROTO_UNSPEC, | |
562 | .revision_min = IPSET_TYPE_REV_MIN, | |
563 | .revision_max = IPSET_TYPE_REV_MAX, | |
564 | .create = hash_netportnet_create, | |
565 | .create_policy = { | |
566 | [IPSET_ATTR_HASHSIZE] = { .type = NLA_U32 }, | |
567 | [IPSET_ATTR_MAXELEM] = { .type = NLA_U32 }, | |
568 | [IPSET_ATTR_PROBES] = { .type = NLA_U8 }, | |
569 | [IPSET_ATTR_RESIZE] = { .type = NLA_U8 }, | |
570 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, | |
571 | [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, | |
572 | }, | |
573 | .adt_policy = { | |
574 | [IPSET_ATTR_IP] = { .type = NLA_NESTED }, | |
575 | [IPSET_ATTR_IP_TO] = { .type = NLA_NESTED }, | |
576 | [IPSET_ATTR_IP2] = { .type = NLA_NESTED }, | |
577 | [IPSET_ATTR_IP2_TO] = { .type = NLA_NESTED }, | |
578 | [IPSET_ATTR_PORT] = { .type = NLA_U16 }, | |
579 | [IPSET_ATTR_PORT_TO] = { .type = NLA_U16 }, | |
580 | [IPSET_ATTR_CIDR] = { .type = NLA_U8 }, | |
581 | [IPSET_ATTR_CIDR2] = { .type = NLA_U8 }, | |
582 | [IPSET_ATTR_PROTO] = { .type = NLA_U8 }, | |
583 | [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, | |
584 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, | |
585 | [IPSET_ATTR_LINENO] = { .type = NLA_U32 }, | |
586 | [IPSET_ATTR_BYTES] = { .type = NLA_U64 }, | |
587 | [IPSET_ATTR_PACKETS] = { .type = NLA_U64 }, | |
03726186 SP |
588 | [IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING, |
589 | .len = IPSET_MAX_COMMENT_SIZE }, | |
af331419 AD |
590 | [IPSET_ATTR_SKBMARK] = { .type = NLA_U64 }, |
591 | [IPSET_ATTR_SKBPRIO] = { .type = NLA_U32 }, | |
592 | [IPSET_ATTR_SKBQUEUE] = { .type = NLA_U16 }, | |
7c3ad056 OS |
593 | }, |
594 | .me = THIS_MODULE, | |
595 | }; | |
596 | ||
597 | static int __init | |
598 | hash_netportnet_init(void) | |
599 | { | |
600 | return ip_set_type_register(&hash_netportnet_type); | |
601 | } | |
602 | ||
603 | static void __exit | |
604 | hash_netportnet_fini(void) | |
605 | { | |
18f84d41 | 606 | rcu_barrier(); |
7c3ad056 OS |
607 | ip_set_type_unregister(&hash_netportnet_type); |
608 | } | |
609 | ||
610 | module_init(hash_netportnet_init); | |
611 | module_exit(hash_netportnet_fini); |