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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
5d50e1d8 | 2 | /* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> |
41d22f7b JK |
3 | */ |
4 | ||
5 | /* Kernel module implementing an IP set type: the hash:ip,port,net type */ | |
6 | ||
7 | #include <linux/jhash.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/ip.h> | |
10 | #include <linux/skbuff.h> | |
11 | #include <linux/errno.h> | |
41d22f7b JK |
12 | #include <linux/random.h> |
13 | #include <net/ip.h> | |
14 | #include <net/ipv6.h> | |
15 | #include <net/netlink.h> | |
16 | #include <net/tcp.h> | |
17 | ||
18 | #include <linux/netfilter.h> | |
19 | #include <linux/netfilter/ipset/pfxlen.h> | |
20 | #include <linux/netfilter/ipset/ip_set.h> | |
41d22f7b JK |
21 | #include <linux/netfilter/ipset/ip_set_getport.h> |
22 | #include <linux/netfilter/ipset/ip_set_hash.h> | |
23 | ||
35b8dcf8 JK |
24 | #define IPSET_TYPE_REV_MIN 0 |
25 | /* 1 SCTP and UDPLITE support added */ | |
26 | /* 2 Range as input support for IPv4 added */ | |
27 | /* 3 nomatch flag support added */ | |
fda75c6d | 28 | /* 4 Counters support added */ |
07cf8f5a | 29 | /* 5 Comments support added */ |
af331419 AD |
30 | /* 6 Forceadd support added */ |
31 | #define IPSET_TYPE_REV_MAX 7 /* skbinfo support added */ | |
10111a6e | 32 | |
41d22f7b JK |
33 | MODULE_LICENSE("GPL"); |
34 | MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>"); | |
35b8dcf8 | 35 | IP_SET_MODULE_DESC("hash:ip,port,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX); |
41d22f7b JK |
36 | MODULE_ALIAS("ip_set_hash:ip,port,net"); |
37 | ||
38 | /* Type specific function prefix */ | |
5d50e1d8 | 39 | #define HTYPE hash_ipportnet |
41d22f7b | 40 | |
2a7cef2a JK |
41 | /* We squeeze the "nomatch" flag into cidr: we don't support cidr == 0 |
42 | * However this way we have to store internally cidr - 1, | |
43 | * dancing back and forth. | |
44 | */ | |
45 | #define IP_SET_HASH_WITH_NETS_PACKED | |
5d50e1d8 JK |
46 | #define IP_SET_HASH_WITH_PROTO |
47 | #define IP_SET_HASH_WITH_NETS | |
2a7cef2a | 48 | |
03c8b234 | 49 | /* IPv4 variant */ |
5d50e1d8 JK |
50 | |
51 | /* Member elements */ | |
41d22f7b JK |
52 | struct hash_ipportnet4_elem { |
53 | __be32 ip; | |
54 | __be32 ip2; | |
55 | __be16 port; | |
2a7cef2a JK |
56 | u8 cidr:7; |
57 | u8 nomatch:1; | |
41d22f7b JK |
58 | u8 proto; |
59 | }; | |
60 | ||
5d50e1d8 JK |
61 | /* Common functions */ |
62 | ||
41d22f7b JK |
63 | static inline bool |
64 | hash_ipportnet4_data_equal(const struct hash_ipportnet4_elem *ip1, | |
89dc79b7 JK |
65 | const struct hash_ipportnet4_elem *ip2, |
66 | u32 *multi) | |
41d22f7b JK |
67 | { |
68 | return ip1->ip == ip2->ip && | |
69 | ip1->ip2 == ip2->ip2 && | |
70 | ip1->cidr == ip2->cidr && | |
71 | ip1->port == ip2->port && | |
72 | ip1->proto == ip2->proto; | |
73 | } | |
74 | ||
5d50e1d8 JK |
75 | static inline int |
76 | hash_ipportnet4_do_data_match(const struct hash_ipportnet4_elem *elem) | |
41d22f7b | 77 | { |
5d50e1d8 | 78 | return elem->nomatch ? -ENOTEMPTY : 1; |
41d22f7b JK |
79 | } |
80 | ||
81 | static inline void | |
5d50e1d8 | 82 | hash_ipportnet4_data_set_flags(struct hash_ipportnet4_elem *elem, u32 flags) |
41d22f7b | 83 | { |
5d50e1d8 | 84 | elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH); |
41d22f7b JK |
85 | } |
86 | ||
2a7cef2a | 87 | static inline void |
5d50e1d8 | 88 | hash_ipportnet4_data_reset_flags(struct hash_ipportnet4_elem *elem, u8 *flags) |
2a7cef2a | 89 | { |
5d50e1d8 | 90 | swap(*flags, elem->nomatch); |
2a7cef2a JK |
91 | } |
92 | ||
41d22f7b JK |
93 | static inline void |
94 | hash_ipportnet4_data_netmask(struct hash_ipportnet4_elem *elem, u8 cidr) | |
95 | { | |
96 | elem->ip2 &= ip_set_netmask(cidr); | |
2a7cef2a | 97 | elem->cidr = cidr - 1; |
41d22f7b JK |
98 | } |
99 | ||
41d22f7b JK |
100 | static bool |
101 | hash_ipportnet4_data_list(struct sk_buff *skb, | |
102 | const struct hash_ipportnet4_elem *data) | |
103 | { | |
2a7cef2a JK |
104 | u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0; |
105 | ||
7cf7899d DM |
106 | if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip) || |
107 | nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip2) || | |
108 | nla_put_net16(skb, IPSET_ATTR_PORT, data->port) || | |
109 | nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr + 1) || | |
110 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) || | |
111 | (flags && | |
112 | nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags)))) | |
113 | goto nla_put_failure; | |
728a7e69 | 114 | return false; |
41d22f7b JK |
115 | |
116 | nla_put_failure: | |
728a7e69 | 117 | return true; |
41d22f7b JK |
118 | } |
119 | ||
5d50e1d8 JK |
120 | static inline void |
121 | hash_ipportnet4_data_next(struct hash_ipportnet4_elem *next, | |
122 | const struct hash_ipportnet4_elem *d) | |
41d22f7b | 123 | { |
5d50e1d8 JK |
124 | next->ip = d->ip; |
125 | next->port = d->port; | |
126 | next->ip2 = d->ip2; | |
41d22f7b JK |
127 | } |
128 | ||
5d50e1d8 | 129 | #define MTYPE hash_ipportnet4 |
41d22f7b | 130 | #define HOST_MASK 32 |
5d50e1d8 | 131 | #include "ip_set_hash_gen.h" |
3d14b171 | 132 | |
41d22f7b JK |
133 | static int |
134 | hash_ipportnet4_kadt(struct ip_set *set, const struct sk_buff *skb, | |
b66554cf | 135 | const struct xt_action_param *par, |
5d50e1d8 | 136 | enum ipset_adt adt, struct ip_set_adt_opt *opt) |
41d22f7b | 137 | { |
21956ab2 | 138 | const struct hash_ipportnet4 *h = set->data; |
41d22f7b | 139 | ipset_adtfn adtfn = set->variant->adt[adt]; |
5d50e1d8 | 140 | struct hash_ipportnet4_elem e = { |
f690cbae | 141 | .cidr = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK), |
9b03a5ef | 142 | }; |
ca134ce8 | 143 | struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set); |
41d22f7b | 144 | |
41d22f7b | 145 | if (adt == IPSET_TEST) |
5d50e1d8 | 146 | e.cidr = HOST_MASK - 1; |
41d22f7b | 147 | |
ac8cc925 | 148 | if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC, |
5d50e1d8 | 149 | &e.port, &e.proto)) |
41d22f7b JK |
150 | return -EINVAL; |
151 | ||
5d50e1d8 JK |
152 | ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip); |
153 | ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2); | |
154 | e.ip2 &= ip_set_netmask(e.cidr + 1); | |
41d22f7b | 155 | |
5d50e1d8 | 156 | return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); |
41d22f7b JK |
157 | } |
158 | ||
159 | static int | |
160 | hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[], | |
3d14b171 | 161 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
41d22f7b | 162 | { |
21956ab2 | 163 | const struct hash_ipportnet4 *h = set->data; |
41d22f7b | 164 | ipset_adtfn adtfn = set->variant->adt[adt]; |
5d50e1d8 | 165 | struct hash_ipportnet4_elem e = { .cidr = HOST_MASK - 1 }; |
ca134ce8 | 166 | struct ip_set_ext ext = IP_SET_INIT_UEXT(set); |
20b2fab4 | 167 | u32 ip = 0, ip_to = 0, p = 0, port, port_to; |
0b8d9073 | 168 | u32 ip2_from = 0, ip2_to = 0, ip2; |
5e0c1eb7 | 169 | bool with_ports = false; |
2a7cef2a | 170 | u8 cidr; |
41d22f7b JK |
171 | int ret; |
172 | ||
a212e08e SP |
173 | if (tb[IPSET_ATTR_LINENO]) |
174 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); | |
175 | ||
41d22f7b JK |
176 | if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] || |
177 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || | |
178 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || | |
7dd37bc8 | 179 | !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS))) |
41d22f7b JK |
180 | return -IPSET_ERR_PROTOCOL; |
181 | ||
8e55d2e5 SP |
182 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip); |
183 | if (ret) | |
184 | return ret; | |
185 | ||
186 | ret = ip_set_get_extensions(set, tb, &ext); | |
41d22f7b JK |
187 | if (ret) |
188 | return ret; | |
189 | ||
d0d9e0a5 | 190 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from); |
41d22f7b JK |
191 | if (ret) |
192 | return ret; | |
193 | ||
d0d9e0a5 | 194 | if (tb[IPSET_ATTR_CIDR2]) { |
2a7cef2a JK |
195 | cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]); |
196 | if (!cidr || cidr > HOST_MASK) | |
d0d9e0a5 | 197 | return -IPSET_ERR_INVALID_CIDR; |
5d50e1d8 | 198 | e.cidr = cidr - 1; |
d0d9e0a5 | 199 | } |
41d22f7b | 200 | |
d25472e4 | 201 | e.port = nla_get_be16(tb[IPSET_ATTR_PORT]); |
41d22f7b JK |
202 | |
203 | if (tb[IPSET_ATTR_PROTO]) { | |
5d50e1d8 JK |
204 | e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]); |
205 | with_ports = ip_set_proto_with_ports(e.proto); | |
41d22f7b | 206 | |
5d50e1d8 | 207 | if (e.proto == 0) |
41d22f7b | 208 | return -IPSET_ERR_INVALID_PROTO; |
ca0f6a5c | 209 | } else { |
41d22f7b | 210 | return -IPSET_ERR_MISSING_PROTO; |
ca0f6a5c | 211 | } |
41d22f7b | 212 | |
5d50e1d8 JK |
213 | if (!(with_ports || e.proto == IPPROTO_ICMP)) |
214 | e.port = 0; | |
41d22f7b | 215 | |
43c56e59 | 216 | if (tb[IPSET_ATTR_CADT_FLAGS]) { |
2a7cef2a | 217 | u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]); |
ca0f6a5c | 218 | |
2a7cef2a | 219 | if (cadt_flags & IPSET_FLAG_NOMATCH) |
43c56e59 | 220 | flags |= (IPSET_FLAG_NOMATCH << 16); |
2a7cef2a JK |
221 | } |
222 | ||
d0d9e0a5 | 223 | with_ports = with_ports && tb[IPSET_ATTR_PORT_TO]; |
41d22f7b | 224 | if (adt == IPSET_TEST || |
d0d9e0a5 JK |
225 | !(tb[IPSET_ATTR_CIDR] || tb[IPSET_ATTR_IP_TO] || with_ports || |
226 | tb[IPSET_ATTR_IP2_TO])) { | |
5d50e1d8 JK |
227 | e.ip = htonl(ip); |
228 | e.ip2 = htonl(ip2_from & ip_set_hostmask(e.cidr + 1)); | |
229 | ret = adtfn(set, &e, &ext, &ext, flags); | |
0f1799ba | 230 | return ip_set_enomatch(ret, flags, adt, set) ? -ret : |
43c56e59 | 231 | ip_set_eexist(ret, flags) ? 0 : ret; |
41d22f7b JK |
232 | } |
233 | ||
4fe198e6 | 234 | ip_to = ip; |
41d22f7b JK |
235 | if (tb[IPSET_ATTR_IP_TO]) { |
236 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to); | |
237 | if (ret) | |
238 | return ret; | |
239 | if (ip > ip_to) | |
240 | swap(ip, ip_to); | |
241 | } else if (tb[IPSET_ATTR_CIDR]) { | |
b3aabd14 | 242 | cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]); |
41d22f7b | 243 | |
cabfd139 | 244 | if (!cidr || cidr > HOST_MASK) |
41d22f7b | 245 | return -IPSET_ERR_INVALID_CIDR; |
e6146e86 | 246 | ip_set_mask_from_to(ip, ip_to, cidr); |
d0d9e0a5 | 247 | } |
41d22f7b | 248 | |
5d50e1d8 | 249 | port_to = port = ntohs(e.port); |
d0d9e0a5 | 250 | if (tb[IPSET_ATTR_PORT_TO]) { |
41d22f7b JK |
251 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
252 | if (port > port_to) | |
253 | swap(port, port_to); | |
5e0c1eb7 | 254 | } |
4fe198e6 JK |
255 | |
256 | ip2_to = ip2_from; | |
d0d9e0a5 JK |
257 | if (tb[IPSET_ATTR_IP2_TO]) { |
258 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to); | |
259 | if (ret) | |
260 | return ret; | |
261 | if (ip2_from > ip2_to) | |
262 | swap(ip2_from, ip2_to); | |
263 | if (ip2_from + UINT_MAX == ip2_to) | |
264 | return -IPSET_ERR_HASH_RANGE; | |
ca0f6a5c | 265 | } else { |
5d50e1d8 | 266 | ip_set_mask_from_to(ip2_from, ip2_to, e.cidr + 1); |
ca0f6a5c | 267 | } |
41d22f7b | 268 | |
0b8d9073 | 269 | if (retried) { |
6e27c9b4 | 270 | ip = ntohl(h->next.ip); |
0b8d9073 JK |
271 | p = ntohs(h->next.port); |
272 | ip2 = ntohl(h->next.ip2); | |
273 | } else { | |
274 | p = port; | |
275 | ip2 = ip2_from; | |
276 | } | |
48596a8d | 277 | for (; ip <= ip_to; ip++) { |
5d50e1d8 | 278 | e.ip = htonl(ip); |
3d14b171 | 279 | for (; p <= port_to; p++) { |
5d50e1d8 | 280 | e.port = htons(p); |
0b8d9073 | 281 | do { |
5d50e1d8 | 282 | e.ip2 = htonl(ip2); |
0b8d9073 | 283 | ip2 = ip_set_range_to_cidr(ip2, ip2_to, &cidr); |
5d50e1d8 JK |
284 | e.cidr = cidr - 1; |
285 | ret = adtfn(set, &e, &ext, &ext, flags); | |
d0d9e0a5 JK |
286 | |
287 | if (ret && !ip_set_eexist(ret, flags)) | |
288 | return ret; | |
ca0f6a5c JK |
289 | |
290 | ret = 0; | |
0b8d9073 JK |
291 | } while (ip2++ < ip2_to); |
292 | ip2 = ip2_from; | |
41d22f7b | 293 | } |
0b8d9073 | 294 | p = port; |
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 | 369 | static inline void |
21956ab2 | 370 | hash_ipportnet6_data_next(struct hash_ipportnet6_elem *next, |
5d50e1d8 | 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 | { |
21956ab2 | 389 | const struct hash_ipportnet6 *h = set->data; |
41d22f7b | 390 | ipset_adtfn adtfn = set->variant->adt[adt]; |
5d50e1d8 | 391 | struct hash_ipportnet6_elem e = { |
f690cbae | 392 | .cidr = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK), |
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 | { |
21956ab2 | 414 | const struct hash_ipportnet6 *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 | 433 | if (unlikely(tb[IPSET_ATTR_CIDR])) { |
8851e799 | 434 | cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]); |
2c227f27 SP |
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 | 468 | return -IPSET_ERR_INVALID_PROTO; |
ca0f6a5c | 469 | } else { |
41d22f7b | 470 | return -IPSET_ERR_MISSING_PROTO; |
ca0f6a5c | 471 | } |
41d22f7b | 472 | |
5d50e1d8 JK |
473 | if (!(with_ports || e.proto == IPPROTO_ICMPV6)) |
474 | e.port = 0; | |
41d22f7b | 475 | |
43c56e59 | 476 | if (tb[IPSET_ATTR_CADT_FLAGS]) { |
2a7cef2a | 477 | u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]); |
ca0f6a5c | 478 | |
2a7cef2a | 479 | if (cadt_flags & IPSET_FLAG_NOMATCH) |
43c56e59 | 480 | flags |= (IPSET_FLAG_NOMATCH << 16); |
2a7cef2a JK |
481 | } |
482 | ||
5e0c1eb7 | 483 | if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) { |
5d50e1d8 | 484 | ret = adtfn(set, &e, &ext, &ext, flags); |
0f1799ba | 485 | return ip_set_enomatch(ret, flags, adt, set) ? -ret : |
43c56e59 | 486 | ip_set_eexist(ret, flags) ? 0 : ret; |
41d22f7b JK |
487 | } |
488 | ||
5d50e1d8 | 489 | port = ntohs(e.port); |
41d22f7b JK |
490 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
491 | if (port > port_to) | |
492 | swap(port, port_to); | |
493 | ||
3d14b171 | 494 | if (retried) |
6e27c9b4 | 495 | port = ntohs(h->next.port); |
41d22f7b | 496 | for (; port <= port_to; port++) { |
5d50e1d8 JK |
497 | e.port = htons(port); |
498 | ret = adtfn(set, &e, &ext, &ext, flags); | |
41d22f7b JK |
499 | |
500 | if (ret && !ip_set_eexist(ret, flags)) | |
501 | return ret; | |
ca0f6a5c JK |
502 | |
503 | ret = 0; | |
41d22f7b JK |
504 | } |
505 | return ret; | |
506 | } | |
507 | ||
41d22f7b JK |
508 | static struct ip_set_type hash_ipportnet_type __read_mostly = { |
509 | .name = "hash:ip,port,net", | |
510 | .protocol = IPSET_PROTOCOL, | |
3e0304a5 JK |
511 | .features = IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2 | |
512 | IPSET_TYPE_NOMATCH, | |
41d22f7b | 513 | .dimension = IPSET_DIM_THREE, |
c15f1c83 | 514 | .family = NFPROTO_UNSPEC, |
35b8dcf8 JK |
515 | .revision_min = IPSET_TYPE_REV_MIN, |
516 | .revision_max = IPSET_TYPE_REV_MAX, | |
41d22f7b JK |
517 | .create = hash_ipportnet_create, |
518 | .create_policy = { | |
519 | [IPSET_ATTR_HASHSIZE] = { .type = NLA_U32 }, | |
520 | [IPSET_ATTR_MAXELEM] = { .type = NLA_U32 }, | |
521 | [IPSET_ATTR_PROBES] = { .type = NLA_U8 }, | |
522 | [IPSET_ATTR_RESIZE] = { .type = NLA_U8 }, | |
523 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, | |
5d50e1d8 | 524 | [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, |
41d22f7b JK |
525 | }, |
526 | .adt_policy = { | |
527 | [IPSET_ATTR_IP] = { .type = NLA_NESTED }, | |
528 | [IPSET_ATTR_IP_TO] = { .type = NLA_NESTED }, | |
529 | [IPSET_ATTR_IP2] = { .type = NLA_NESTED }, | |
d0d9e0a5 | 530 | [IPSET_ATTR_IP2_TO] = { .type = NLA_NESTED }, |
41d22f7b JK |
531 | [IPSET_ATTR_PORT] = { .type = NLA_U16 }, |
532 | [IPSET_ATTR_PORT_TO] = { .type = NLA_U16 }, | |
533 | [IPSET_ATTR_CIDR] = { .type = NLA_U8 }, | |
534 | [IPSET_ATTR_CIDR2] = { .type = NLA_U8 }, | |
535 | [IPSET_ATTR_PROTO] = { .type = NLA_U8 }, | |
2a7cef2a | 536 | [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, |
41d22f7b JK |
537 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, |
538 | [IPSET_ATTR_LINENO] = { .type = NLA_U32 }, | |
00d71b27 JK |
539 | [IPSET_ATTR_BYTES] = { .type = NLA_U64 }, |
540 | [IPSET_ATTR_PACKETS] = { .type = NLA_U64 }, | |
03726186 SP |
541 | [IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING, |
542 | .len = IPSET_MAX_COMMENT_SIZE }, | |
af331419 AD |
543 | [IPSET_ATTR_SKBMARK] = { .type = NLA_U64 }, |
544 | [IPSET_ATTR_SKBPRIO] = { .type = NLA_U32 }, | |
545 | [IPSET_ATTR_SKBQUEUE] = { .type = NLA_U16 }, | |
41d22f7b JK |
546 | }, |
547 | .me = THIS_MODULE, | |
548 | }; | |
549 | ||
550 | static int __init | |
551 | hash_ipportnet_init(void) | |
552 | { | |
553 | return ip_set_type_register(&hash_ipportnet_type); | |
554 | } | |
555 | ||
556 | static void __exit | |
557 | hash_ipportnet_fini(void) | |
558 | { | |
18f84d41 | 559 | rcu_barrier(); |
41d22f7b JK |
560 | ip_set_type_unregister(&hash_ipportnet_type); |
561 | } | |
562 | ||
563 | module_init(hash_ipportnet_init); | |
564 | module_exit(hash_ipportnet_fini); |