Commit | Line | Data |
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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 | ||
35b8dcf8 JK |
27 | #define IPSET_TYPE_REV_MIN 0 |
28 | /* 1 SCTP and UDPLITE support added */ | |
29 | /* 2 Range as input support for IPv4 added */ | |
30 | /* 3 nomatch flag support added */ | |
fda75c6d | 31 | /* 4 Counters support added */ |
07cf8f5a | 32 | /* 5 Comments support added */ |
af331419 AD |
33 | /* 6 Forceadd support added */ |
34 | #define IPSET_TYPE_REV_MAX 7 /* skbinfo support added */ | |
10111a6e | 35 | |
41d22f7b JK |
36 | MODULE_LICENSE("GPL"); |
37 | MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>"); | |
35b8dcf8 | 38 | IP_SET_MODULE_DESC("hash:ip,port,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX); |
41d22f7b JK |
39 | MODULE_ALIAS("ip_set_hash:ip,port,net"); |
40 | ||
41 | /* Type specific function prefix */ | |
5d50e1d8 | 42 | #define HTYPE hash_ipportnet |
41d22f7b | 43 | |
2a7cef2a JK |
44 | /* We squeeze the "nomatch" flag into cidr: we don't support cidr == 0 |
45 | * However this way we have to store internally cidr - 1, | |
46 | * dancing back and forth. | |
47 | */ | |
48 | #define IP_SET_HASH_WITH_NETS_PACKED | |
5d50e1d8 JK |
49 | #define IP_SET_HASH_WITH_PROTO |
50 | #define IP_SET_HASH_WITH_NETS | |
2a7cef2a | 51 | |
03c8b234 | 52 | /* IPv4 variant */ |
5d50e1d8 JK |
53 | |
54 | /* Member elements */ | |
41d22f7b JK |
55 | struct hash_ipportnet4_elem { |
56 | __be32 ip; | |
57 | __be32 ip2; | |
58 | __be16 port; | |
2a7cef2a JK |
59 | u8 cidr:7; |
60 | u8 nomatch:1; | |
41d22f7b JK |
61 | u8 proto; |
62 | }; | |
63 | ||
5d50e1d8 JK |
64 | /* Common functions */ |
65 | ||
41d22f7b JK |
66 | static inline bool |
67 | hash_ipportnet4_data_equal(const struct hash_ipportnet4_elem *ip1, | |
89dc79b7 JK |
68 | const struct hash_ipportnet4_elem *ip2, |
69 | u32 *multi) | |
41d22f7b JK |
70 | { |
71 | return ip1->ip == ip2->ip && | |
72 | ip1->ip2 == ip2->ip2 && | |
73 | ip1->cidr == ip2->cidr && | |
74 | ip1->port == ip2->port && | |
75 | ip1->proto == ip2->proto; | |
76 | } | |
77 | ||
5d50e1d8 JK |
78 | static inline int |
79 | hash_ipportnet4_do_data_match(const struct hash_ipportnet4_elem *elem) | |
41d22f7b | 80 | { |
5d50e1d8 | 81 | return elem->nomatch ? -ENOTEMPTY : 1; |
41d22f7b JK |
82 | } |
83 | ||
84 | static inline void | |
5d50e1d8 | 85 | hash_ipportnet4_data_set_flags(struct hash_ipportnet4_elem *elem, u32 flags) |
41d22f7b | 86 | { |
5d50e1d8 | 87 | elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH); |
41d22f7b JK |
88 | } |
89 | ||
2a7cef2a | 90 | static inline void |
5d50e1d8 | 91 | hash_ipportnet4_data_reset_flags(struct hash_ipportnet4_elem *elem, u8 *flags) |
2a7cef2a | 92 | { |
5d50e1d8 | 93 | swap(*flags, elem->nomatch); |
2a7cef2a JK |
94 | } |
95 | ||
41d22f7b JK |
96 | static inline void |
97 | hash_ipportnet4_data_netmask(struct hash_ipportnet4_elem *elem, u8 cidr) | |
98 | { | |
99 | elem->ip2 &= ip_set_netmask(cidr); | |
2a7cef2a | 100 | elem->cidr = cidr - 1; |
41d22f7b JK |
101 | } |
102 | ||
41d22f7b JK |
103 | static bool |
104 | hash_ipportnet4_data_list(struct sk_buff *skb, | |
105 | const struct hash_ipportnet4_elem *data) | |
106 | { | |
2a7cef2a JK |
107 | u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0; |
108 | ||
7cf7899d DM |
109 | if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip) || |
110 | nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip2) || | |
111 | nla_put_net16(skb, IPSET_ATTR_PORT, data->port) || | |
112 | nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr + 1) || | |
113 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) || | |
114 | (flags && | |
115 | nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags)))) | |
116 | goto nla_put_failure; | |
728a7e69 | 117 | return false; |
41d22f7b JK |
118 | |
119 | nla_put_failure: | |
728a7e69 | 120 | return true; |
41d22f7b JK |
121 | } |
122 | ||
5d50e1d8 JK |
123 | static inline void |
124 | hash_ipportnet4_data_next(struct hash_ipportnet4_elem *next, | |
125 | const struct hash_ipportnet4_elem *d) | |
41d22f7b | 126 | { |
5d50e1d8 JK |
127 | next->ip = d->ip; |
128 | next->port = d->port; | |
129 | next->ip2 = d->ip2; | |
41d22f7b JK |
130 | } |
131 | ||
5d50e1d8 | 132 | #define MTYPE hash_ipportnet4 |
41d22f7b | 133 | #define HOST_MASK 32 |
5d50e1d8 | 134 | #include "ip_set_hash_gen.h" |
3d14b171 | 135 | |
41d22f7b JK |
136 | static int |
137 | hash_ipportnet4_kadt(struct ip_set *set, const struct sk_buff *skb, | |
b66554cf | 138 | const struct xt_action_param *par, |
5d50e1d8 | 139 | enum ipset_adt adt, struct ip_set_adt_opt *opt) |
41d22f7b | 140 | { |
5d50e1d8 | 141 | const struct hash_ipportnet *h = set->data; |
41d22f7b | 142 | ipset_adtfn adtfn = set->variant->adt[adt]; |
5d50e1d8 | 143 | struct hash_ipportnet4_elem e = { |
a04d8b6b | 144 | .cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK) - 1, |
9b03a5ef | 145 | }; |
ca134ce8 | 146 | struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set); |
41d22f7b | 147 | |
41d22f7b | 148 | if (adt == IPSET_TEST) |
5d50e1d8 | 149 | e.cidr = HOST_MASK - 1; |
41d22f7b | 150 | |
ac8cc925 | 151 | if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC, |
5d50e1d8 | 152 | &e.port, &e.proto)) |
41d22f7b JK |
153 | return -EINVAL; |
154 | ||
5d50e1d8 JK |
155 | ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip); |
156 | ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2); | |
157 | e.ip2 &= ip_set_netmask(e.cidr + 1); | |
41d22f7b | 158 | |
5d50e1d8 | 159 | return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); |
41d22f7b JK |
160 | } |
161 | ||
162 | static int | |
163 | hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[], | |
3d14b171 | 164 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
41d22f7b | 165 | { |
5d50e1d8 | 166 | const struct hash_ipportnet *h = set->data; |
41d22f7b | 167 | ipset_adtfn adtfn = set->variant->adt[adt]; |
5d50e1d8 | 168 | struct hash_ipportnet4_elem e = { .cidr = HOST_MASK - 1 }; |
ca134ce8 | 169 | struct ip_set_ext ext = IP_SET_INIT_UEXT(set); |
20b2fab4 JK |
170 | u32 ip = 0, ip_to = 0, p = 0, port, port_to; |
171 | u32 ip2_from = 0, ip2_to = 0, ip2_last, ip2; | |
5e0c1eb7 | 172 | bool with_ports = false; |
2a7cef2a | 173 | u8 cidr; |
41d22f7b JK |
174 | int ret; |
175 | ||
a212e08e SP |
176 | if (tb[IPSET_ATTR_LINENO]) |
177 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); | |
178 | ||
41d22f7b JK |
179 | if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] || |
180 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || | |
181 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || | |
7dd37bc8 | 182 | !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS))) |
41d22f7b JK |
183 | return -IPSET_ERR_PROTOCOL; |
184 | ||
8e55d2e5 SP |
185 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip); |
186 | if (ret) | |
187 | return ret; | |
188 | ||
189 | ret = ip_set_get_extensions(set, tb, &ext); | |
41d22f7b JK |
190 | if (ret) |
191 | return ret; | |
192 | ||
d0d9e0a5 | 193 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from); |
41d22f7b JK |
194 | if (ret) |
195 | return ret; | |
196 | ||
d0d9e0a5 | 197 | if (tb[IPSET_ATTR_CIDR2]) { |
2a7cef2a JK |
198 | cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]); |
199 | if (!cidr || cidr > HOST_MASK) | |
d0d9e0a5 | 200 | return -IPSET_ERR_INVALID_CIDR; |
5d50e1d8 | 201 | e.cidr = cidr - 1; |
d0d9e0a5 | 202 | } |
41d22f7b | 203 | |
d25472e4 | 204 | e.port = nla_get_be16(tb[IPSET_ATTR_PORT]); |
41d22f7b JK |
205 | |
206 | if (tb[IPSET_ATTR_PROTO]) { | |
5d50e1d8 JK |
207 | e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]); |
208 | with_ports = ip_set_proto_with_ports(e.proto); | |
41d22f7b | 209 | |
5d50e1d8 | 210 | if (e.proto == 0) |
41d22f7b JK |
211 | return -IPSET_ERR_INVALID_PROTO; |
212 | } else | |
213 | return -IPSET_ERR_MISSING_PROTO; | |
214 | ||
5d50e1d8 JK |
215 | if (!(with_ports || e.proto == IPPROTO_ICMP)) |
216 | e.port = 0; | |
41d22f7b | 217 | |
43c56e59 | 218 | if (tb[IPSET_ATTR_CADT_FLAGS]) { |
2a7cef2a JK |
219 | u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]); |
220 | if (cadt_flags & IPSET_FLAG_NOMATCH) | |
43c56e59 | 221 | flags |= (IPSET_FLAG_NOMATCH << 16); |
2a7cef2a JK |
222 | } |
223 | ||
d0d9e0a5 | 224 | with_ports = with_ports && tb[IPSET_ATTR_PORT_TO]; |
41d22f7b | 225 | if (adt == IPSET_TEST || |
d0d9e0a5 JK |
226 | !(tb[IPSET_ATTR_CIDR] || tb[IPSET_ATTR_IP_TO] || with_ports || |
227 | tb[IPSET_ATTR_IP2_TO])) { | |
5d50e1d8 JK |
228 | e.ip = htonl(ip); |
229 | e.ip2 = htonl(ip2_from & ip_set_hostmask(e.cidr + 1)); | |
230 | ret = adtfn(set, &e, &ext, &ext, flags); | |
0f1799ba | 231 | return ip_set_enomatch(ret, flags, adt, set) ? -ret : |
43c56e59 | 232 | ip_set_eexist(ret, flags) ? 0 : ret; |
41d22f7b JK |
233 | } |
234 | ||
4fe198e6 | 235 | ip_to = ip; |
41d22f7b JK |
236 | if (tb[IPSET_ATTR_IP_TO]) { |
237 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to); | |
238 | if (ret) | |
239 | return ret; | |
240 | if (ip > ip_to) | |
241 | swap(ip, ip_to); | |
242 | } else if (tb[IPSET_ATTR_CIDR]) { | |
b3aabd14 | 243 | cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]); |
41d22f7b | 244 | |
cabfd139 | 245 | if (!cidr || cidr > HOST_MASK) |
41d22f7b | 246 | return -IPSET_ERR_INVALID_CIDR; |
e6146e86 | 247 | ip_set_mask_from_to(ip, ip_to, cidr); |
d0d9e0a5 | 248 | } |
41d22f7b | 249 | |
5d50e1d8 | 250 | port_to = port = ntohs(e.port); |
d0d9e0a5 | 251 | if (tb[IPSET_ATTR_PORT_TO]) { |
41d22f7b JK |
252 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
253 | if (port > port_to) | |
254 | swap(port, port_to); | |
5e0c1eb7 | 255 | } |
4fe198e6 JK |
256 | |
257 | ip2_to = ip2_from; | |
d0d9e0a5 JK |
258 | if (tb[IPSET_ATTR_IP2_TO]) { |
259 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to); | |
260 | if (ret) | |
261 | return ret; | |
262 | if (ip2_from > ip2_to) | |
263 | swap(ip2_from, ip2_to); | |
264 | if (ip2_from + UINT_MAX == ip2_to) | |
265 | return -IPSET_ERR_HASH_RANGE; | |
5d50e1d8 JK |
266 | } else |
267 | ip_set_mask_from_to(ip2_from, ip2_to, e.cidr + 1); | |
41d22f7b | 268 | |
3d14b171 | 269 | if (retried) |
6e27c9b4 | 270 | ip = ntohl(h->next.ip); |
3d14b171 | 271 | for (; !before(ip_to, ip); ip++) { |
5d50e1d8 | 272 | e.ip = htonl(ip); |
6e27c9b4 JK |
273 | p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port) |
274 | : port; | |
3d14b171 | 275 | for (; p <= port_to; p++) { |
5d50e1d8 | 276 | e.port = htons(p); |
ca134ce8 JK |
277 | ip2 = retried && |
278 | ip == ntohl(h->next.ip) && | |
279 | p == ntohs(h->next.port) | |
6e27c9b4 | 280 | ? ntohl(h->next.ip2) : ip2_from; |
d0d9e0a5 | 281 | while (!after(ip2, ip2_to)) { |
5d50e1d8 | 282 | e.ip2 = htonl(ip2); |
d0d9e0a5 | 283 | ip2_last = ip_set_range_to_cidr(ip2, ip2_to, |
2a7cef2a | 284 | &cidr); |
5d50e1d8 JK |
285 | e.cidr = cidr - 1; |
286 | ret = adtfn(set, &e, &ext, &ext, flags); | |
d0d9e0a5 JK |
287 | |
288 | if (ret && !ip_set_eexist(ret, flags)) | |
289 | return ret; | |
290 | else | |
291 | ret = 0; | |
292 | ip2 = ip2_last + 1; | |
293 | } | |
41d22f7b | 294 | } |
3d14b171 | 295 | } |
41d22f7b JK |
296 | return ret; |
297 | } | |
298 | ||
03c8b234 | 299 | /* IPv6 variant */ |
41d22f7b JK |
300 | |
301 | struct hash_ipportnet6_elem { | |
302 | union nf_inet_addr ip; | |
303 | union nf_inet_addr ip2; | |
304 | __be16 port; | |
2a7cef2a JK |
305 | u8 cidr:7; |
306 | u8 nomatch:1; | |
41d22f7b JK |
307 | u8 proto; |
308 | }; | |
309 | ||
5d50e1d8 JK |
310 | /* Common functions */ |
311 | ||
41d22f7b JK |
312 | static inline bool |
313 | hash_ipportnet6_data_equal(const struct hash_ipportnet6_elem *ip1, | |
89dc79b7 JK |
314 | const struct hash_ipportnet6_elem *ip2, |
315 | u32 *multi) | |
41d22f7b | 316 | { |
29e3b160 YH |
317 | return ipv6_addr_equal(&ip1->ip.in6, &ip2->ip.in6) && |
318 | ipv6_addr_equal(&ip1->ip2.in6, &ip2->ip2.in6) && | |
41d22f7b JK |
319 | ip1->cidr == ip2->cidr && |
320 | ip1->port == ip2->port && | |
321 | ip1->proto == ip2->proto; | |
322 | } | |
323 | ||
5d50e1d8 JK |
324 | static inline int |
325 | hash_ipportnet6_do_data_match(const struct hash_ipportnet6_elem *elem) | |
2a7cef2a | 326 | { |
5d50e1d8 | 327 | return elem->nomatch ? -ENOTEMPTY : 1; |
2a7cef2a JK |
328 | } |
329 | ||
6eb4c7e9 | 330 | static inline void |
5d50e1d8 | 331 | hash_ipportnet6_data_set_flags(struct hash_ipportnet6_elem *elem, u32 flags) |
2a7cef2a | 332 | { |
5d50e1d8 | 333 | elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH); |
2a7cef2a JK |
334 | } |
335 | ||
41d22f7b | 336 | static inline void |
5d50e1d8 | 337 | hash_ipportnet6_data_reset_flags(struct hash_ipportnet6_elem *elem, u8 *flags) |
41d22f7b | 338 | { |
5d50e1d8 | 339 | swap(*flags, elem->nomatch); |
41d22f7b JK |
340 | } |
341 | ||
41d22f7b JK |
342 | static inline void |
343 | hash_ipportnet6_data_netmask(struct hash_ipportnet6_elem *elem, u8 cidr) | |
344 | { | |
345 | ip6_netmask(&elem->ip2, cidr); | |
2a7cef2a | 346 | elem->cidr = cidr - 1; |
41d22f7b JK |
347 | } |
348 | ||
349 | static bool | |
350 | hash_ipportnet6_data_list(struct sk_buff *skb, | |
351 | const struct hash_ipportnet6_elem *data) | |
352 | { | |
2a7cef2a JK |
353 | u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0; |
354 | ||
7cf7899d DM |
355 | if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip.in6) || |
356 | nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip2.in6) || | |
357 | nla_put_net16(skb, IPSET_ATTR_PORT, data->port) || | |
358 | nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr + 1) || | |
359 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) || | |
360 | (flags && | |
361 | nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags)))) | |
362 | goto nla_put_failure; | |
728a7e69 | 363 | return false; |
41d22f7b JK |
364 | |
365 | nla_put_failure: | |
728a7e69 | 366 | return true; |
41d22f7b JK |
367 | } |
368 | ||
5d50e1d8 JK |
369 | static inline void |
370 | hash_ipportnet6_data_next(struct hash_ipportnet4_elem *next, | |
371 | const struct hash_ipportnet6_elem *d) | |
41d22f7b | 372 | { |
5d50e1d8 | 373 | next->port = d->port; |
41d22f7b JK |
374 | } |
375 | ||
5d50e1d8 | 376 | #undef MTYPE |
41d22f7b JK |
377 | #undef HOST_MASK |
378 | ||
5d50e1d8 | 379 | #define MTYPE hash_ipportnet6 |
41d22f7b | 380 | #define HOST_MASK 128 |
5d50e1d8 JK |
381 | #define IP_SET_EMIT_CREATE |
382 | #include "ip_set_hash_gen.h" | |
3d14b171 | 383 | |
41d22f7b JK |
384 | static int |
385 | hash_ipportnet6_kadt(struct ip_set *set, const struct sk_buff *skb, | |
b66554cf | 386 | const struct xt_action_param *par, |
5d50e1d8 | 387 | enum ipset_adt adt, struct ip_set_adt_opt *opt) |
41d22f7b | 388 | { |
5d50e1d8 | 389 | const struct hash_ipportnet *h = set->data; |
41d22f7b | 390 | ipset_adtfn adtfn = set->variant->adt[adt]; |
5d50e1d8 | 391 | struct hash_ipportnet6_elem e = { |
a04d8b6b | 392 | .cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK) - 1, |
9b03a5ef | 393 | }; |
ca134ce8 | 394 | struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set); |
41d22f7b | 395 | |
41d22f7b | 396 | if (adt == IPSET_TEST) |
5d50e1d8 | 397 | e.cidr = HOST_MASK - 1; |
41d22f7b | 398 | |
ac8cc925 | 399 | if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC, |
5d50e1d8 | 400 | &e.port, &e.proto)) |
41d22f7b JK |
401 | return -EINVAL; |
402 | ||
5d50e1d8 JK |
403 | ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6); |
404 | ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2.in6); | |
405 | ip6_netmask(&e.ip2, e.cidr + 1); | |
41d22f7b | 406 | |
5d50e1d8 | 407 | return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); |
41d22f7b JK |
408 | } |
409 | ||
410 | static int | |
411 | hash_ipportnet6_uadt(struct ip_set *set, struct nlattr *tb[], | |
3d14b171 | 412 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
41d22f7b | 413 | { |
5d50e1d8 | 414 | const struct hash_ipportnet *h = set->data; |
41d22f7b | 415 | ipset_adtfn adtfn = set->variant->adt[adt]; |
5d50e1d8 | 416 | struct hash_ipportnet6_elem e = { .cidr = HOST_MASK - 1 }; |
ca134ce8 | 417 | struct ip_set_ext ext = IP_SET_INIT_UEXT(set); |
41d22f7b | 418 | u32 port, port_to; |
5e0c1eb7 | 419 | bool with_ports = false; |
2a7cef2a | 420 | u8 cidr; |
41d22f7b JK |
421 | int ret; |
422 | ||
a212e08e SP |
423 | if (tb[IPSET_ATTR_LINENO]) |
424 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); | |
425 | ||
41d22f7b JK |
426 | if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] || |
427 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || | |
428 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || | |
2c227f27 | 429 | !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS))) |
41d22f7b | 430 | return -IPSET_ERR_PROTOCOL; |
d0d9e0a5 JK |
431 | if (unlikely(tb[IPSET_ATTR_IP_TO])) |
432 | return -IPSET_ERR_HASH_RANGE_UNSUPPORTED; | |
2c227f27 SP |
433 | if (unlikely(tb[IPSET_ATTR_CIDR])) { |
434 | u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]); | |
435 | ||
436 | if (cidr != HOST_MASK) | |
437 | return -IPSET_ERR_INVALID_CIDR; | |
438 | } | |
41d22f7b | 439 | |
8e55d2e5 SP |
440 | ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip); |
441 | if (ret) | |
442 | return ret; | |
443 | ||
444 | ret = ip_set_get_extensions(set, tb, &ext); | |
41d22f7b JK |
445 | if (ret) |
446 | return ret; | |
447 | ||
5d50e1d8 | 448 | ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip2); |
41d22f7b JK |
449 | if (ret) |
450 | return ret; | |
451 | ||
2a7cef2a JK |
452 | if (tb[IPSET_ATTR_CIDR2]) { |
453 | cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]); | |
454 | if (!cidr || cidr > HOST_MASK) | |
455 | return -IPSET_ERR_INVALID_CIDR; | |
5d50e1d8 | 456 | e.cidr = cidr - 1; |
2a7cef2a | 457 | } |
41d22f7b | 458 | |
5d50e1d8 | 459 | ip6_netmask(&e.ip2, e.cidr + 1); |
41d22f7b | 460 | |
d25472e4 | 461 | e.port = nla_get_be16(tb[IPSET_ATTR_PORT]); |
41d22f7b JK |
462 | |
463 | if (tb[IPSET_ATTR_PROTO]) { | |
5d50e1d8 JK |
464 | e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]); |
465 | with_ports = ip_set_proto_with_ports(e.proto); | |
41d22f7b | 466 | |
5d50e1d8 | 467 | if (e.proto == 0) |
41d22f7b JK |
468 | return -IPSET_ERR_INVALID_PROTO; |
469 | } else | |
470 | return -IPSET_ERR_MISSING_PROTO; | |
471 | ||
5d50e1d8 JK |
472 | if (!(with_ports || e.proto == IPPROTO_ICMPV6)) |
473 | e.port = 0; | |
41d22f7b | 474 | |
43c56e59 | 475 | if (tb[IPSET_ATTR_CADT_FLAGS]) { |
2a7cef2a JK |
476 | u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]); |
477 | if (cadt_flags & IPSET_FLAG_NOMATCH) | |
43c56e59 | 478 | flags |= (IPSET_FLAG_NOMATCH << 16); |
2a7cef2a JK |
479 | } |
480 | ||
5e0c1eb7 | 481 | if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) { |
5d50e1d8 | 482 | ret = adtfn(set, &e, &ext, &ext, flags); |
0f1799ba | 483 | return ip_set_enomatch(ret, flags, adt, set) ? -ret : |
43c56e59 | 484 | ip_set_eexist(ret, flags) ? 0 : ret; |
41d22f7b JK |
485 | } |
486 | ||
5d50e1d8 | 487 | port = ntohs(e.port); |
41d22f7b JK |
488 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
489 | if (port > port_to) | |
490 | swap(port, port_to); | |
491 | ||
3d14b171 | 492 | if (retried) |
6e27c9b4 | 493 | port = ntohs(h->next.port); |
41d22f7b | 494 | for (; port <= port_to; port++) { |
5d50e1d8 JK |
495 | e.port = htons(port); |
496 | ret = adtfn(set, &e, &ext, &ext, flags); | |
41d22f7b JK |
497 | |
498 | if (ret && !ip_set_eexist(ret, flags)) | |
499 | return ret; | |
500 | else | |
501 | ret = 0; | |
502 | } | |
503 | return ret; | |
504 | } | |
505 | ||
41d22f7b JK |
506 | static struct ip_set_type hash_ipportnet_type __read_mostly = { |
507 | .name = "hash:ip,port,net", | |
508 | .protocol = IPSET_PROTOCOL, | |
3e0304a5 JK |
509 | .features = IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2 | |
510 | IPSET_TYPE_NOMATCH, | |
41d22f7b | 511 | .dimension = IPSET_DIM_THREE, |
c15f1c83 | 512 | .family = NFPROTO_UNSPEC, |
35b8dcf8 JK |
513 | .revision_min = IPSET_TYPE_REV_MIN, |
514 | .revision_max = IPSET_TYPE_REV_MAX, | |
41d22f7b JK |
515 | .create = hash_ipportnet_create, |
516 | .create_policy = { | |
517 | [IPSET_ATTR_HASHSIZE] = { .type = NLA_U32 }, | |
518 | [IPSET_ATTR_MAXELEM] = { .type = NLA_U32 }, | |
519 | [IPSET_ATTR_PROBES] = { .type = NLA_U8 }, | |
520 | [IPSET_ATTR_RESIZE] = { .type = NLA_U8 }, | |
521 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, | |
5d50e1d8 | 522 | [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, |
41d22f7b JK |
523 | }, |
524 | .adt_policy = { | |
525 | [IPSET_ATTR_IP] = { .type = NLA_NESTED }, | |
526 | [IPSET_ATTR_IP_TO] = { .type = NLA_NESTED }, | |
527 | [IPSET_ATTR_IP2] = { .type = NLA_NESTED }, | |
d0d9e0a5 | 528 | [IPSET_ATTR_IP2_TO] = { .type = NLA_NESTED }, |
41d22f7b JK |
529 | [IPSET_ATTR_PORT] = { .type = NLA_U16 }, |
530 | [IPSET_ATTR_PORT_TO] = { .type = NLA_U16 }, | |
531 | [IPSET_ATTR_CIDR] = { .type = NLA_U8 }, | |
532 | [IPSET_ATTR_CIDR2] = { .type = NLA_U8 }, | |
533 | [IPSET_ATTR_PROTO] = { .type = NLA_U8 }, | |
2a7cef2a | 534 | [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, |
41d22f7b JK |
535 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, |
536 | [IPSET_ATTR_LINENO] = { .type = NLA_U32 }, | |
00d71b27 JK |
537 | [IPSET_ATTR_BYTES] = { .type = NLA_U64 }, |
538 | [IPSET_ATTR_PACKETS] = { .type = NLA_U64 }, | |
03726186 SP |
539 | [IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING, |
540 | .len = IPSET_MAX_COMMENT_SIZE }, | |
af331419 AD |
541 | [IPSET_ATTR_SKBMARK] = { .type = NLA_U64 }, |
542 | [IPSET_ATTR_SKBPRIO] = { .type = NLA_U32 }, | |
543 | [IPSET_ATTR_SKBQUEUE] = { .type = NLA_U16 }, | |
41d22f7b JK |
544 | }, |
545 | .me = THIS_MODULE, | |
546 | }; | |
547 | ||
548 | static int __init | |
549 | hash_ipportnet_init(void) | |
550 | { | |
551 | return ip_set_type_register(&hash_ipportnet_type); | |
552 | } | |
553 | ||
554 | static void __exit | |
555 | hash_ipportnet_fini(void) | |
556 | { | |
557 | ip_set_type_unregister(&hash_ipportnet_type); | |
558 | } | |
559 | ||
560 | module_init(hash_ipportnet_init); | |
561 | module_exit(hash_ipportnet_fini); |