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5d50e1d8 | 1 | /* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> |
41d22f7b JK |
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> | |
41d22f7b JK |
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> | |
41d22f7b JK |
24 | #include <linux/netfilter/ipset/ip_set_getport.h> |
25 | #include <linux/netfilter/ipset/ip_set_hash.h> | |
26 | ||
10111a6e JK |
27 | #define REVISION_MIN 0 |
28 | /* 1 SCTP and UDPLITE support added */ | |
29 | /* 2 Range as input support for IPv4 added */ | |
30 | #define REVISION_MAX 3 /* nomatch flag support added */ | |
31 | ||
41d22f7b JK |
32 | MODULE_LICENSE("GPL"); |
33 | MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>"); | |
10111a6e | 34 | IP_SET_MODULE_DESC("hash:ip,port,net", REVISION_MIN, REVISION_MAX); |
41d22f7b JK |
35 | MODULE_ALIAS("ip_set_hash:ip,port,net"); |
36 | ||
37 | /* Type specific function prefix */ | |
5d50e1d8 | 38 | #define HTYPE hash_ipportnet |
41d22f7b | 39 | |
2a7cef2a JK |
40 | /* We squeeze the "nomatch" flag into cidr: we don't support cidr == 0 |
41 | * However this way we have to store internally cidr - 1, | |
42 | * dancing back and forth. | |
43 | */ | |
44 | #define IP_SET_HASH_WITH_NETS_PACKED | |
5d50e1d8 JK |
45 | #define IP_SET_HASH_WITH_PROTO |
46 | #define IP_SET_HASH_WITH_NETS | |
2a7cef2a | 47 | |
5d50e1d8 JK |
48 | /* IPv4 variants */ |
49 | ||
50 | /* Member elements */ | |
41d22f7b JK |
51 | struct hash_ipportnet4_elem { |
52 | __be32 ip; | |
53 | __be32 ip2; | |
54 | __be16 port; | |
2a7cef2a JK |
55 | u8 cidr:7; |
56 | u8 nomatch:1; | |
41d22f7b JK |
57 | u8 proto; |
58 | }; | |
59 | ||
5d50e1d8 | 60 | struct hash_ipportnet4t_elem { |
41d22f7b JK |
61 | __be32 ip; |
62 | __be32 ip2; | |
63 | __be16 port; | |
2a7cef2a JK |
64 | u8 cidr:7; |
65 | u8 nomatch:1; | |
41d22f7b JK |
66 | u8 proto; |
67 | unsigned long timeout; | |
68 | }; | |
69 | ||
5d50e1d8 JK |
70 | /* Common functions */ |
71 | ||
41d22f7b JK |
72 | static inline bool |
73 | hash_ipportnet4_data_equal(const struct hash_ipportnet4_elem *ip1, | |
89dc79b7 JK |
74 | const struct hash_ipportnet4_elem *ip2, |
75 | u32 *multi) | |
41d22f7b JK |
76 | { |
77 | return ip1->ip == ip2->ip && | |
78 | ip1->ip2 == ip2->ip2 && | |
79 | ip1->cidr == ip2->cidr && | |
80 | ip1->port == ip2->port && | |
81 | ip1->proto == ip2->proto; | |
82 | } | |
83 | ||
5d50e1d8 JK |
84 | static inline int |
85 | hash_ipportnet4_do_data_match(const struct hash_ipportnet4_elem *elem) | |
41d22f7b | 86 | { |
5d50e1d8 | 87 | return elem->nomatch ? -ENOTEMPTY : 1; |
41d22f7b JK |
88 | } |
89 | ||
90 | static inline void | |
5d50e1d8 | 91 | hash_ipportnet4_data_set_flags(struct hash_ipportnet4_elem *elem, u32 flags) |
41d22f7b | 92 | { |
5d50e1d8 | 93 | elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH); |
41d22f7b JK |
94 | } |
95 | ||
2a7cef2a | 96 | static inline void |
5d50e1d8 | 97 | hash_ipportnet4_data_reset_flags(struct hash_ipportnet4_elem *elem, u8 *flags) |
2a7cef2a | 98 | { |
5d50e1d8 | 99 | swap(*flags, elem->nomatch); |
2a7cef2a JK |
100 | } |
101 | ||
41d22f7b JK |
102 | static inline void |
103 | hash_ipportnet4_data_netmask(struct hash_ipportnet4_elem *elem, u8 cidr) | |
104 | { | |
105 | elem->ip2 &= ip_set_netmask(cidr); | |
2a7cef2a | 106 | elem->cidr = cidr - 1; |
41d22f7b JK |
107 | } |
108 | ||
41d22f7b JK |
109 | static bool |
110 | hash_ipportnet4_data_list(struct sk_buff *skb, | |
111 | const struct hash_ipportnet4_elem *data) | |
112 | { | |
2a7cef2a JK |
113 | u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0; |
114 | ||
7cf7899d DM |
115 | if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip) || |
116 | nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip2) || | |
117 | nla_put_net16(skb, IPSET_ATTR_PORT, data->port) || | |
118 | nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr + 1) || | |
119 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) || | |
120 | (flags && | |
121 | nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags)))) | |
122 | goto nla_put_failure; | |
41d22f7b JK |
123 | return 0; |
124 | ||
125 | nla_put_failure: | |
126 | return 1; | |
127 | } | |
128 | ||
5d50e1d8 JK |
129 | static inline void |
130 | hash_ipportnet4_data_next(struct hash_ipportnet4_elem *next, | |
131 | const struct hash_ipportnet4_elem *d) | |
41d22f7b | 132 | { |
5d50e1d8 JK |
133 | next->ip = d->ip; |
134 | next->port = d->port; | |
135 | next->ip2 = d->ip2; | |
41d22f7b JK |
136 | } |
137 | ||
5d50e1d8 | 138 | #define MTYPE hash_ipportnet4 |
41d22f7b JK |
139 | #define PF 4 |
140 | #define HOST_MASK 32 | |
5d50e1d8 | 141 | #include "ip_set_hash_gen.h" |
3d14b171 | 142 | |
41d22f7b JK |
143 | static int |
144 | hash_ipportnet4_kadt(struct ip_set *set, const struct sk_buff *skb, | |
b66554cf | 145 | const struct xt_action_param *par, |
5d50e1d8 | 146 | enum ipset_adt adt, struct ip_set_adt_opt *opt) |
41d22f7b | 147 | { |
5d50e1d8 | 148 | const struct hash_ipportnet *h = set->data; |
41d22f7b | 149 | ipset_adtfn adtfn = set->variant->adt[adt]; |
5d50e1d8 | 150 | struct hash_ipportnet4_elem e = { |
2a7cef2a | 151 | .cidr = h->nets[0].cidr ? h->nets[0].cidr - 1 : HOST_MASK - 1 |
9b03a5ef | 152 | }; |
5d50e1d8 | 153 | struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h); |
41d22f7b | 154 | |
41d22f7b | 155 | if (adt == IPSET_TEST) |
5d50e1d8 | 156 | e.cidr = HOST_MASK - 1; |
41d22f7b | 157 | |
ac8cc925 | 158 | if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC, |
5d50e1d8 | 159 | &e.port, &e.proto)) |
41d22f7b JK |
160 | return -EINVAL; |
161 | ||
5d50e1d8 JK |
162 | ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip); |
163 | ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2); | |
164 | e.ip2 &= ip_set_netmask(e.cidr + 1); | |
41d22f7b | 165 | |
5d50e1d8 | 166 | return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); |
41d22f7b JK |
167 | } |
168 | ||
169 | static int | |
170 | hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[], | |
3d14b171 | 171 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
41d22f7b | 172 | { |
5d50e1d8 | 173 | const struct hash_ipportnet *h = set->data; |
41d22f7b | 174 | ipset_adtfn adtfn = set->variant->adt[adt]; |
5d50e1d8 JK |
175 | struct hash_ipportnet4_elem e = { .cidr = HOST_MASK - 1 }; |
176 | struct ip_set_ext ext = IP_SET_INIT_UEXT(h); | |
4fe198e6 JK |
177 | u32 ip, ip_to, p = 0, port, port_to; |
178 | u32 ip2_from, ip2_to, ip2_last, ip2; | |
5e0c1eb7 | 179 | bool with_ports = false; |
2a7cef2a | 180 | u8 cidr; |
41d22f7b JK |
181 | int ret; |
182 | ||
183 | if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] || | |
184 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || | |
185 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || | |
2a7cef2a JK |
186 | !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) || |
187 | !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS))) | |
41d22f7b JK |
188 | return -IPSET_ERR_PROTOCOL; |
189 | ||
190 | if (tb[IPSET_ATTR_LINENO]) | |
191 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); | |
192 | ||
5d50e1d8 JK |
193 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) || |
194 | ip_set_get_extensions(set, tb, &ext); | |
41d22f7b JK |
195 | if (ret) |
196 | return ret; | |
197 | ||
d0d9e0a5 | 198 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from); |
41d22f7b JK |
199 | if (ret) |
200 | return ret; | |
201 | ||
d0d9e0a5 | 202 | if (tb[IPSET_ATTR_CIDR2]) { |
2a7cef2a JK |
203 | cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]); |
204 | if (!cidr || cidr > HOST_MASK) | |
d0d9e0a5 | 205 | return -IPSET_ERR_INVALID_CIDR; |
5d50e1d8 | 206 | e.cidr = cidr - 1; |
d0d9e0a5 | 207 | } |
41d22f7b JK |
208 | |
209 | if (tb[IPSET_ATTR_PORT]) | |
5d50e1d8 | 210 | e.port = nla_get_be16(tb[IPSET_ATTR_PORT]); |
41d22f7b JK |
211 | else |
212 | return -IPSET_ERR_PROTOCOL; | |
213 | ||
214 | if (tb[IPSET_ATTR_PROTO]) { | |
5d50e1d8 JK |
215 | e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]); |
216 | with_ports = ip_set_proto_with_ports(e.proto); | |
41d22f7b | 217 | |
5d50e1d8 | 218 | if (e.proto == 0) |
41d22f7b JK |
219 | return -IPSET_ERR_INVALID_PROTO; |
220 | } else | |
221 | return -IPSET_ERR_MISSING_PROTO; | |
222 | ||
5d50e1d8 JK |
223 | if (!(with_ports || e.proto == IPPROTO_ICMP)) |
224 | e.port = 0; | |
41d22f7b | 225 | |
43c56e59 | 226 | if (tb[IPSET_ATTR_CADT_FLAGS]) { |
2a7cef2a JK |
227 | u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]); |
228 | if (cadt_flags & IPSET_FLAG_NOMATCH) | |
43c56e59 | 229 | flags |= (IPSET_FLAG_NOMATCH << 16); |
2a7cef2a JK |
230 | } |
231 | ||
d0d9e0a5 | 232 | with_ports = with_ports && tb[IPSET_ATTR_PORT_TO]; |
41d22f7b | 233 | if (adt == IPSET_TEST || |
d0d9e0a5 JK |
234 | !(tb[IPSET_ATTR_CIDR] || tb[IPSET_ATTR_IP_TO] || with_ports || |
235 | tb[IPSET_ATTR_IP2_TO])) { | |
5d50e1d8 JK |
236 | e.ip = htonl(ip); |
237 | e.ip2 = htonl(ip2_from & ip_set_hostmask(e.cidr + 1)); | |
238 | ret = adtfn(set, &e, &ext, &ext, flags); | |
43c56e59 JK |
239 | return ip_set_enomatch(ret, flags, adt) ? 1 : |
240 | ip_set_eexist(ret, flags) ? 0 : ret; | |
41d22f7b JK |
241 | } |
242 | ||
4fe198e6 | 243 | ip_to = ip; |
41d22f7b JK |
244 | if (tb[IPSET_ATTR_IP_TO]) { |
245 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to); | |
246 | if (ret) | |
247 | return ret; | |
248 | if (ip > ip_to) | |
249 | swap(ip, ip_to); | |
250 | } else if (tb[IPSET_ATTR_CIDR]) { | |
251 | u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]); | |
252 | ||
b9fed748 | 253 | if (!cidr || cidr > 32) |
41d22f7b | 254 | return -IPSET_ERR_INVALID_CIDR; |
e6146e86 | 255 | ip_set_mask_from_to(ip, ip_to, cidr); |
d0d9e0a5 | 256 | } |
41d22f7b | 257 | |
5d50e1d8 | 258 | port_to = port = ntohs(e.port); |
d0d9e0a5 | 259 | if (tb[IPSET_ATTR_PORT_TO]) { |
41d22f7b JK |
260 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
261 | if (port > port_to) | |
262 | swap(port, port_to); | |
5e0c1eb7 | 263 | } |
4fe198e6 JK |
264 | |
265 | ip2_to = ip2_from; | |
d0d9e0a5 JK |
266 | if (tb[IPSET_ATTR_IP2_TO]) { |
267 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to); | |
268 | if (ret) | |
269 | return ret; | |
270 | if (ip2_from > ip2_to) | |
271 | swap(ip2_from, ip2_to); | |
272 | if (ip2_from + UINT_MAX == ip2_to) | |
273 | return -IPSET_ERR_HASH_RANGE; | |
5d50e1d8 JK |
274 | } else |
275 | ip_set_mask_from_to(ip2_from, ip2_to, e.cidr + 1); | |
41d22f7b | 276 | |
3d14b171 | 277 | if (retried) |
6e27c9b4 | 278 | ip = ntohl(h->next.ip); |
3d14b171 | 279 | for (; !before(ip_to, ip); ip++) { |
5d50e1d8 | 280 | e.ip = htonl(ip); |
6e27c9b4 JK |
281 | p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port) |
282 | : port; | |
3d14b171 | 283 | for (; p <= port_to; p++) { |
5d50e1d8 | 284 | e.port = htons(p); |
6e27c9b4 JK |
285 | ip2 = retried |
286 | && ip == ntohl(h->next.ip) | |
287 | && p == ntohs(h->next.port) | |
288 | ? ntohl(h->next.ip2) : ip2_from; | |
d0d9e0a5 | 289 | while (!after(ip2, ip2_to)) { |
5d50e1d8 | 290 | e.ip2 = htonl(ip2); |
d0d9e0a5 | 291 | ip2_last = ip_set_range_to_cidr(ip2, ip2_to, |
2a7cef2a | 292 | &cidr); |
5d50e1d8 JK |
293 | e.cidr = cidr - 1; |
294 | ret = adtfn(set, &e, &ext, &ext, flags); | |
d0d9e0a5 JK |
295 | |
296 | if (ret && !ip_set_eexist(ret, flags)) | |
297 | return ret; | |
298 | else | |
299 | ret = 0; | |
300 | ip2 = ip2_last + 1; | |
301 | } | |
41d22f7b | 302 | } |
3d14b171 | 303 | } |
41d22f7b JK |
304 | return ret; |
305 | } | |
306 | ||
5d50e1d8 | 307 | /* IPv6 variants */ |
41d22f7b JK |
308 | |
309 | struct hash_ipportnet6_elem { | |
310 | union nf_inet_addr ip; | |
311 | union nf_inet_addr ip2; | |
312 | __be16 port; | |
2a7cef2a JK |
313 | u8 cidr:7; |
314 | u8 nomatch:1; | |
41d22f7b JK |
315 | u8 proto; |
316 | }; | |
317 | ||
5d50e1d8 | 318 | struct hash_ipportnet6t_elem { |
41d22f7b JK |
319 | union nf_inet_addr ip; |
320 | union nf_inet_addr ip2; | |
321 | __be16 port; | |
2a7cef2a JK |
322 | u8 cidr:7; |
323 | u8 nomatch:1; | |
41d22f7b JK |
324 | u8 proto; |
325 | unsigned long timeout; | |
326 | }; | |
327 | ||
5d50e1d8 JK |
328 | /* Common functions */ |
329 | ||
41d22f7b JK |
330 | static inline bool |
331 | hash_ipportnet6_data_equal(const struct hash_ipportnet6_elem *ip1, | |
89dc79b7 JK |
332 | const struct hash_ipportnet6_elem *ip2, |
333 | u32 *multi) | |
41d22f7b | 334 | { |
29e3b160 YH |
335 | return ipv6_addr_equal(&ip1->ip.in6, &ip2->ip.in6) && |
336 | ipv6_addr_equal(&ip1->ip2.in6, &ip2->ip2.in6) && | |
41d22f7b JK |
337 | ip1->cidr == ip2->cidr && |
338 | ip1->port == ip2->port && | |
339 | ip1->proto == ip2->proto; | |
340 | } | |
341 | ||
5d50e1d8 JK |
342 | static inline int |
343 | hash_ipportnet6_do_data_match(const struct hash_ipportnet6_elem *elem) | |
2a7cef2a | 344 | { |
5d50e1d8 | 345 | return elem->nomatch ? -ENOTEMPTY : 1; |
2a7cef2a JK |
346 | } |
347 | ||
6eb4c7e9 | 348 | static inline void |
5d50e1d8 | 349 | hash_ipportnet6_data_set_flags(struct hash_ipportnet6_elem *elem, u32 flags) |
2a7cef2a | 350 | { |
5d50e1d8 | 351 | elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH); |
2a7cef2a JK |
352 | } |
353 | ||
41d22f7b | 354 | static inline void |
5d50e1d8 | 355 | hash_ipportnet6_data_reset_flags(struct hash_ipportnet6_elem *elem, u8 *flags) |
41d22f7b | 356 | { |
5d50e1d8 | 357 | swap(*flags, elem->nomatch); |
41d22f7b JK |
358 | } |
359 | ||
41d22f7b JK |
360 | static inline void |
361 | hash_ipportnet6_data_netmask(struct hash_ipportnet6_elem *elem, u8 cidr) | |
362 | { | |
363 | ip6_netmask(&elem->ip2, cidr); | |
2a7cef2a | 364 | elem->cidr = cidr - 1; |
41d22f7b JK |
365 | } |
366 | ||
367 | static bool | |
368 | hash_ipportnet6_data_list(struct sk_buff *skb, | |
369 | const struct hash_ipportnet6_elem *data) | |
370 | { | |
2a7cef2a JK |
371 | u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0; |
372 | ||
7cf7899d DM |
373 | if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip.in6) || |
374 | nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip2.in6) || | |
375 | nla_put_net16(skb, IPSET_ATTR_PORT, data->port) || | |
376 | nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr + 1) || | |
377 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) || | |
378 | (flags && | |
379 | nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags)))) | |
380 | goto nla_put_failure; | |
41d22f7b JK |
381 | return 0; |
382 | ||
383 | nla_put_failure: | |
384 | return 1; | |
385 | } | |
386 | ||
5d50e1d8 JK |
387 | static inline void |
388 | hash_ipportnet6_data_next(struct hash_ipportnet4_elem *next, | |
389 | const struct hash_ipportnet6_elem *d) | |
41d22f7b | 390 | { |
5d50e1d8 | 391 | next->port = d->port; |
41d22f7b JK |
392 | } |
393 | ||
5d50e1d8 | 394 | #undef MTYPE |
41d22f7b JK |
395 | #undef PF |
396 | #undef HOST_MASK | |
397 | ||
5d50e1d8 | 398 | #define MTYPE hash_ipportnet6 |
41d22f7b JK |
399 | #define PF 6 |
400 | #define HOST_MASK 128 | |
5d50e1d8 JK |
401 | #define IP_SET_EMIT_CREATE |
402 | #include "ip_set_hash_gen.h" | |
3d14b171 | 403 | |
41d22f7b JK |
404 | static int |
405 | hash_ipportnet6_kadt(struct ip_set *set, const struct sk_buff *skb, | |
b66554cf | 406 | const struct xt_action_param *par, |
5d50e1d8 | 407 | enum ipset_adt adt, struct ip_set_adt_opt *opt) |
41d22f7b | 408 | { |
5d50e1d8 | 409 | const struct hash_ipportnet *h = set->data; |
41d22f7b | 410 | ipset_adtfn adtfn = set->variant->adt[adt]; |
5d50e1d8 | 411 | struct hash_ipportnet6_elem e = { |
2a7cef2a | 412 | .cidr = h->nets[0].cidr ? h->nets[0].cidr - 1 : HOST_MASK - 1 |
9b03a5ef | 413 | }; |
5d50e1d8 | 414 | struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h); |
41d22f7b | 415 | |
41d22f7b | 416 | if (adt == IPSET_TEST) |
5d50e1d8 | 417 | e.cidr = HOST_MASK - 1; |
41d22f7b | 418 | |
ac8cc925 | 419 | if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC, |
5d50e1d8 | 420 | &e.port, &e.proto)) |
41d22f7b JK |
421 | return -EINVAL; |
422 | ||
5d50e1d8 JK |
423 | ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6); |
424 | ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2.in6); | |
425 | ip6_netmask(&e.ip2, e.cidr + 1); | |
41d22f7b | 426 | |
5d50e1d8 | 427 | return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); |
41d22f7b JK |
428 | } |
429 | ||
430 | static int | |
431 | hash_ipportnet6_uadt(struct ip_set *set, struct nlattr *tb[], | |
3d14b171 | 432 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
41d22f7b | 433 | { |
5d50e1d8 | 434 | const struct hash_ipportnet *h = set->data; |
41d22f7b | 435 | ipset_adtfn adtfn = set->variant->adt[adt]; |
5d50e1d8 JK |
436 | struct hash_ipportnet6_elem e = { .cidr = HOST_MASK - 1 }; |
437 | struct ip_set_ext ext = IP_SET_INIT_UEXT(h); | |
41d22f7b | 438 | u32 port, port_to; |
5e0c1eb7 | 439 | bool with_ports = false; |
2a7cef2a | 440 | u8 cidr; |
41d22f7b JK |
441 | int ret; |
442 | ||
443 | if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] || | |
444 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || | |
445 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || | |
446 | !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) || | |
2a7cef2a | 447 | !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) || |
41d22f7b JK |
448 | tb[IPSET_ATTR_IP_TO] || |
449 | tb[IPSET_ATTR_CIDR])) | |
450 | return -IPSET_ERR_PROTOCOL; | |
d0d9e0a5 JK |
451 | if (unlikely(tb[IPSET_ATTR_IP_TO])) |
452 | return -IPSET_ERR_HASH_RANGE_UNSUPPORTED; | |
41d22f7b JK |
453 | |
454 | if (tb[IPSET_ATTR_LINENO]) | |
455 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); | |
456 | ||
5d50e1d8 JK |
457 | ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip) || |
458 | ip_set_get_extensions(set, tb, &ext); | |
41d22f7b JK |
459 | if (ret) |
460 | return ret; | |
461 | ||
5d50e1d8 | 462 | ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip2); |
41d22f7b JK |
463 | if (ret) |
464 | return ret; | |
465 | ||
2a7cef2a JK |
466 | if (tb[IPSET_ATTR_CIDR2]) { |
467 | cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]); | |
468 | if (!cidr || cidr > HOST_MASK) | |
469 | return -IPSET_ERR_INVALID_CIDR; | |
5d50e1d8 | 470 | e.cidr = cidr - 1; |
2a7cef2a | 471 | } |
41d22f7b | 472 | |
5d50e1d8 | 473 | ip6_netmask(&e.ip2, e.cidr + 1); |
41d22f7b JK |
474 | |
475 | if (tb[IPSET_ATTR_PORT]) | |
5d50e1d8 | 476 | e.port = nla_get_be16(tb[IPSET_ATTR_PORT]); |
41d22f7b JK |
477 | else |
478 | return -IPSET_ERR_PROTOCOL; | |
479 | ||
480 | if (tb[IPSET_ATTR_PROTO]) { | |
5d50e1d8 JK |
481 | e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]); |
482 | with_ports = ip_set_proto_with_ports(e.proto); | |
41d22f7b | 483 | |
5d50e1d8 | 484 | if (e.proto == 0) |
41d22f7b JK |
485 | return -IPSET_ERR_INVALID_PROTO; |
486 | } else | |
487 | return -IPSET_ERR_MISSING_PROTO; | |
488 | ||
5d50e1d8 JK |
489 | if (!(with_ports || e.proto == IPPROTO_ICMPV6)) |
490 | e.port = 0; | |
41d22f7b | 491 | |
43c56e59 | 492 | if (tb[IPSET_ATTR_CADT_FLAGS]) { |
2a7cef2a JK |
493 | u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]); |
494 | if (cadt_flags & IPSET_FLAG_NOMATCH) | |
43c56e59 | 495 | flags |= (IPSET_FLAG_NOMATCH << 16); |
2a7cef2a JK |
496 | } |
497 | ||
5e0c1eb7 | 498 | if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) { |
5d50e1d8 | 499 | ret = adtfn(set, &e, &ext, &ext, flags); |
43c56e59 JK |
500 | return ip_set_enomatch(ret, flags, adt) ? 1 : |
501 | ip_set_eexist(ret, flags) ? 0 : ret; | |
41d22f7b JK |
502 | } |
503 | ||
5d50e1d8 | 504 | port = ntohs(e.port); |
41d22f7b JK |
505 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
506 | if (port > port_to) | |
507 | swap(port, port_to); | |
508 | ||
3d14b171 | 509 | if (retried) |
6e27c9b4 | 510 | port = ntohs(h->next.port); |
41d22f7b | 511 | for (; port <= port_to; port++) { |
5d50e1d8 JK |
512 | e.port = htons(port); |
513 | ret = adtfn(set, &e, &ext, &ext, flags); | |
41d22f7b JK |
514 | |
515 | if (ret && !ip_set_eexist(ret, flags)) | |
516 | return ret; | |
517 | else | |
518 | ret = 0; | |
519 | } | |
520 | return ret; | |
521 | } | |
522 | ||
41d22f7b JK |
523 | static struct ip_set_type hash_ipportnet_type __read_mostly = { |
524 | .name = "hash:ip,port,net", | |
525 | .protocol = IPSET_PROTOCOL, | |
3e0304a5 JK |
526 | .features = IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2 | |
527 | IPSET_TYPE_NOMATCH, | |
41d22f7b | 528 | .dimension = IPSET_DIM_THREE, |
c15f1c83 | 529 | .family = NFPROTO_UNSPEC, |
10111a6e JK |
530 | .revision_min = REVISION_MIN, |
531 | .revision_max = REVISION_MAX, | |
41d22f7b JK |
532 | .create = hash_ipportnet_create, |
533 | .create_policy = { | |
534 | [IPSET_ATTR_HASHSIZE] = { .type = NLA_U32 }, | |
535 | [IPSET_ATTR_MAXELEM] = { .type = NLA_U32 }, | |
536 | [IPSET_ATTR_PROBES] = { .type = NLA_U8 }, | |
537 | [IPSET_ATTR_RESIZE] = { .type = NLA_U8 }, | |
538 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, | |
5d50e1d8 | 539 | [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, |
41d22f7b JK |
540 | }, |
541 | .adt_policy = { | |
542 | [IPSET_ATTR_IP] = { .type = NLA_NESTED }, | |
543 | [IPSET_ATTR_IP_TO] = { .type = NLA_NESTED }, | |
544 | [IPSET_ATTR_IP2] = { .type = NLA_NESTED }, | |
d0d9e0a5 | 545 | [IPSET_ATTR_IP2_TO] = { .type = NLA_NESTED }, |
41d22f7b JK |
546 | [IPSET_ATTR_PORT] = { .type = NLA_U16 }, |
547 | [IPSET_ATTR_PORT_TO] = { .type = NLA_U16 }, | |
548 | [IPSET_ATTR_CIDR] = { .type = NLA_U8 }, | |
549 | [IPSET_ATTR_CIDR2] = { .type = NLA_U8 }, | |
550 | [IPSET_ATTR_PROTO] = { .type = NLA_U8 }, | |
2a7cef2a | 551 | [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, |
41d22f7b JK |
552 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, |
553 | [IPSET_ATTR_LINENO] = { .type = NLA_U32 }, | |
554 | }, | |
555 | .me = THIS_MODULE, | |
556 | }; | |
557 | ||
558 | static int __init | |
559 | hash_ipportnet_init(void) | |
560 | { | |
561 | return ip_set_type_register(&hash_ipportnet_type); | |
562 | } | |
563 | ||
564 | static void __exit | |
565 | hash_ipportnet_fini(void) | |
566 | { | |
567 | ip_set_type_unregister(&hash_ipportnet_type); | |
568 | } | |
569 | ||
570 | module_init(hash_ipportnet_init); | |
571 | module_exit(hash_ipportnet_fini); |