Commit | Line | Data |
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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
1c5ba67d | 2 | /* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@netfilter.org> */ |
41d22f7b JK |
3 | |
4 | /* Kernel module implementing an IP set type: the hash:ip,port,net type */ | |
5 | ||
6 | #include <linux/jhash.h> | |
7 | #include <linux/module.h> | |
8 | #include <linux/ip.h> | |
9 | #include <linux/skbuff.h> | |
10 | #include <linux/errno.h> | |
41d22f7b JK |
11 | #include <linux/random.h> |
12 | #include <net/ip.h> | |
13 | #include <net/ipv6.h> | |
14 | #include <net/netlink.h> | |
15 | #include <net/tcp.h> | |
16 | ||
17 | #include <linux/netfilter.h> | |
18 | #include <linux/netfilter/ipset/pfxlen.h> | |
19 | #include <linux/netfilter/ipset/ip_set.h> | |
41d22f7b JK |
20 | #include <linux/netfilter/ipset/ip_set_getport.h> |
21 | #include <linux/netfilter/ipset/ip_set_hash.h> | |
22 | ||
35b8dcf8 JK |
23 | #define IPSET_TYPE_REV_MIN 0 |
24 | /* 1 SCTP and UDPLITE support added */ | |
25 | /* 2 Range as input support for IPv4 added */ | |
26 | /* 3 nomatch flag support added */ | |
fda75c6d | 27 | /* 4 Counters support added */ |
07cf8f5a | 28 | /* 5 Comments support added */ |
af331419 AD |
29 | /* 6 Forceadd support added */ |
30 | #define IPSET_TYPE_REV_MAX 7 /* skbinfo support added */ | |
10111a6e | 31 | |
41d22f7b | 32 | MODULE_LICENSE("GPL"); |
fe03d474 | 33 | MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@netfilter.org>"); |
35b8dcf8 | 34 | IP_SET_MODULE_DESC("hash:ip,port,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_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 | |
03c8b234 | 48 | /* IPv4 variant */ |
5d50e1d8 JK |
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 JK |
60 | /* Common functions */ |
61 | ||
8dea982a | 62 | static bool |
41d22f7b | 63 | hash_ipportnet4_data_equal(const struct hash_ipportnet4_elem *ip1, |
89dc79b7 JK |
64 | const struct hash_ipportnet4_elem *ip2, |
65 | u32 *multi) | |
41d22f7b JK |
66 | { |
67 | return ip1->ip == ip2->ip && | |
68 | ip1->ip2 == ip2->ip2 && | |
69 | ip1->cidr == ip2->cidr && | |
70 | ip1->port == ip2->port && | |
71 | ip1->proto == ip2->proto; | |
72 | } | |
73 | ||
8dea982a | 74 | static int |
5d50e1d8 | 75 | hash_ipportnet4_do_data_match(const struct hash_ipportnet4_elem *elem) |
41d22f7b | 76 | { |
5d50e1d8 | 77 | return elem->nomatch ? -ENOTEMPTY : 1; |
41d22f7b JK |
78 | } |
79 | ||
8dea982a | 80 | static void |
5d50e1d8 | 81 | hash_ipportnet4_data_set_flags(struct hash_ipportnet4_elem *elem, u32 flags) |
41d22f7b | 82 | { |
5d50e1d8 | 83 | elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH); |
41d22f7b JK |
84 | } |
85 | ||
8dea982a | 86 | static void |
5d50e1d8 | 87 | hash_ipportnet4_data_reset_flags(struct hash_ipportnet4_elem *elem, u8 *flags) |
2a7cef2a | 88 | { |
5d50e1d8 | 89 | swap(*flags, elem->nomatch); |
2a7cef2a JK |
90 | } |
91 | ||
8dea982a | 92 | static void |
41d22f7b JK |
93 | hash_ipportnet4_data_netmask(struct hash_ipportnet4_elem *elem, u8 cidr) |
94 | { | |
95 | elem->ip2 &= ip_set_netmask(cidr); | |
2a7cef2a | 96 | elem->cidr = cidr - 1; |
41d22f7b JK |
97 | } |
98 | ||
41d22f7b JK |
99 | static bool |
100 | hash_ipportnet4_data_list(struct sk_buff *skb, | |
101 | const struct hash_ipportnet4_elem *data) | |
102 | { | |
2a7cef2a JK |
103 | u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0; |
104 | ||
7cf7899d DM |
105 | if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip) || |
106 | nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip2) || | |
107 | nla_put_net16(skb, IPSET_ATTR_PORT, data->port) || | |
108 | nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr + 1) || | |
109 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) || | |
110 | (flags && | |
111 | nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags)))) | |
112 | goto nla_put_failure; | |
728a7e69 | 113 | return false; |
41d22f7b JK |
114 | |
115 | nla_put_failure: | |
728a7e69 | 116 | return true; |
41d22f7b JK |
117 | } |
118 | ||
8dea982a | 119 | static void |
5d50e1d8 JK |
120 | hash_ipportnet4_data_next(struct hash_ipportnet4_elem *next, |
121 | const struct hash_ipportnet4_elem *d) | |
41d22f7b | 122 | { |
5d50e1d8 JK |
123 | next->ip = d->ip; |
124 | next->port = d->port; | |
125 | next->ip2 = d->ip2; | |
41d22f7b JK |
126 | } |
127 | ||
5d50e1d8 | 128 | #define MTYPE hash_ipportnet4 |
41d22f7b | 129 | #define HOST_MASK 32 |
5d50e1d8 | 130 | #include "ip_set_hash_gen.h" |
3d14b171 | 131 | |
41d22f7b JK |
132 | static int |
133 | hash_ipportnet4_kadt(struct ip_set *set, const struct sk_buff *skb, | |
b66554cf | 134 | const struct xt_action_param *par, |
5d50e1d8 | 135 | enum ipset_adt adt, struct ip_set_adt_opt *opt) |
41d22f7b | 136 | { |
21956ab2 | 137 | const struct hash_ipportnet4 *h = set->data; |
41d22f7b | 138 | ipset_adtfn adtfn = set->variant->adt[adt]; |
5d50e1d8 | 139 | struct hash_ipportnet4_elem e = { |
f690cbae | 140 | .cidr = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK), |
9b03a5ef | 141 | }; |
ca134ce8 | 142 | struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set); |
41d22f7b | 143 | |
41d22f7b | 144 | if (adt == IPSET_TEST) |
5d50e1d8 | 145 | e.cidr = HOST_MASK - 1; |
41d22f7b | 146 | |
ac8cc925 | 147 | if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC, |
5d50e1d8 | 148 | &e.port, &e.proto)) |
41d22f7b JK |
149 | return -EINVAL; |
150 | ||
5d50e1d8 JK |
151 | ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip); |
152 | ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2); | |
153 | e.ip2 &= ip_set_netmask(e.cidr + 1); | |
41d22f7b | 154 | |
5d50e1d8 | 155 | return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); |
41d22f7b JK |
156 | } |
157 | ||
158 | static int | |
159 | hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[], | |
3d14b171 | 160 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
41d22f7b | 161 | { |
21956ab2 | 162 | const struct hash_ipportnet4 *h = set->data; |
41d22f7b | 163 | ipset_adtfn adtfn = set->variant->adt[adt]; |
5d50e1d8 | 164 | struct hash_ipportnet4_elem e = { .cidr = HOST_MASK - 1 }; |
ca134ce8 | 165 | struct ip_set_ext ext = IP_SET_INIT_UEXT(set); |
20b2fab4 | 166 | u32 ip = 0, ip_to = 0, p = 0, port, port_to; |
0b8d9073 | 167 | u32 ip2_from = 0, ip2_to = 0, ip2; |
5e0c1eb7 | 168 | bool with_ports = false; |
2a7cef2a | 169 | u8 cidr; |
41d22f7b JK |
170 | int ret; |
171 | ||
a212e08e SP |
172 | if (tb[IPSET_ATTR_LINENO]) |
173 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); | |
174 | ||
41d22f7b JK |
175 | if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] || |
176 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || | |
177 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || | |
7dd37bc8 | 178 | !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS))) |
41d22f7b JK |
179 | return -IPSET_ERR_PROTOCOL; |
180 | ||
8e55d2e5 SP |
181 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip); |
182 | if (ret) | |
183 | return ret; | |
184 | ||
185 | ret = ip_set_get_extensions(set, tb, &ext); | |
41d22f7b JK |
186 | if (ret) |
187 | return ret; | |
188 | ||
d0d9e0a5 | 189 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from); |
41d22f7b JK |
190 | if (ret) |
191 | return ret; | |
192 | ||
d0d9e0a5 | 193 | if (tb[IPSET_ATTR_CIDR2]) { |
2a7cef2a JK |
194 | cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]); |
195 | if (!cidr || cidr > HOST_MASK) | |
d0d9e0a5 | 196 | return -IPSET_ERR_INVALID_CIDR; |
5d50e1d8 | 197 | e.cidr = cidr - 1; |
d0d9e0a5 | 198 | } |
41d22f7b | 199 | |
d25472e4 | 200 | e.port = nla_get_be16(tb[IPSET_ATTR_PORT]); |
41d22f7b JK |
201 | |
202 | if (tb[IPSET_ATTR_PROTO]) { | |
5d50e1d8 JK |
203 | e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]); |
204 | with_ports = ip_set_proto_with_ports(e.proto); | |
41d22f7b | 205 | |
5d50e1d8 | 206 | if (e.proto == 0) |
41d22f7b | 207 | return -IPSET_ERR_INVALID_PROTO; |
ca0f6a5c | 208 | } else { |
41d22f7b | 209 | return -IPSET_ERR_MISSING_PROTO; |
ca0f6a5c | 210 | } |
41d22f7b | 211 | |
5d50e1d8 JK |
212 | if (!(with_ports || e.proto == IPPROTO_ICMP)) |
213 | e.port = 0; | |
41d22f7b | 214 | |
43c56e59 | 215 | if (tb[IPSET_ATTR_CADT_FLAGS]) { |
2a7cef2a | 216 | u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]); |
ca0f6a5c | 217 | |
2a7cef2a | 218 | if (cadt_flags & IPSET_FLAG_NOMATCH) |
43c56e59 | 219 | flags |= (IPSET_FLAG_NOMATCH << 16); |
2a7cef2a JK |
220 | } |
221 | ||
d0d9e0a5 | 222 | with_ports = with_ports && tb[IPSET_ATTR_PORT_TO]; |
41d22f7b | 223 | if (adt == IPSET_TEST || |
d0d9e0a5 JK |
224 | !(tb[IPSET_ATTR_CIDR] || tb[IPSET_ATTR_IP_TO] || with_ports || |
225 | tb[IPSET_ATTR_IP2_TO])) { | |
5d50e1d8 JK |
226 | e.ip = htonl(ip); |
227 | e.ip2 = htonl(ip2_from & ip_set_hostmask(e.cidr + 1)); | |
228 | ret = adtfn(set, &e, &ext, &ext, flags); | |
0f1799ba | 229 | return ip_set_enomatch(ret, flags, adt, set) ? -ret : |
43c56e59 | 230 | ip_set_eexist(ret, flags) ? 0 : ret; |
41d22f7b JK |
231 | } |
232 | ||
4fe198e6 | 233 | ip_to = ip; |
41d22f7b JK |
234 | if (tb[IPSET_ATTR_IP_TO]) { |
235 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to); | |
236 | if (ret) | |
237 | return ret; | |
238 | if (ip > ip_to) | |
239 | swap(ip, ip_to); | |
240 | } else if (tb[IPSET_ATTR_CIDR]) { | |
b3aabd14 | 241 | cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]); |
41d22f7b | 242 | |
cabfd139 | 243 | if (!cidr || cidr > HOST_MASK) |
41d22f7b | 244 | return -IPSET_ERR_INVALID_CIDR; |
e6146e86 | 245 | ip_set_mask_from_to(ip, ip_to, cidr); |
d0d9e0a5 | 246 | } |
41d22f7b | 247 | |
5d50e1d8 | 248 | port_to = port = ntohs(e.port); |
d0d9e0a5 | 249 | if (tb[IPSET_ATTR_PORT_TO]) { |
41d22f7b JK |
250 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
251 | if (port > port_to) | |
252 | swap(port, port_to); | |
5e0c1eb7 | 253 | } |
4fe198e6 JK |
254 | |
255 | ip2_to = ip2_from; | |
d0d9e0a5 JK |
256 | if (tb[IPSET_ATTR_IP2_TO]) { |
257 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to); | |
258 | if (ret) | |
259 | return ret; | |
260 | if (ip2_from > ip2_to) | |
261 | swap(ip2_from, ip2_to); | |
262 | if (ip2_from + UINT_MAX == ip2_to) | |
263 | return -IPSET_ERR_HASH_RANGE; | |
ca0f6a5c | 264 | } else { |
5d50e1d8 | 265 | ip_set_mask_from_to(ip2_from, ip2_to, e.cidr + 1); |
ca0f6a5c | 266 | } |
41d22f7b | 267 | |
0b8d9073 | 268 | if (retried) { |
6e27c9b4 | 269 | ip = ntohl(h->next.ip); |
0b8d9073 JK |
270 | p = ntohs(h->next.port); |
271 | ip2 = ntohl(h->next.ip2); | |
272 | } else { | |
273 | p = port; | |
274 | ip2 = ip2_from; | |
275 | } | |
48596a8d | 276 | for (; ip <= ip_to; ip++) { |
5d50e1d8 | 277 | e.ip = htonl(ip); |
3d14b171 | 278 | for (; p <= port_to; p++) { |
5d50e1d8 | 279 | e.port = htons(p); |
0b8d9073 | 280 | do { |
5d50e1d8 | 281 | e.ip2 = htonl(ip2); |
0b8d9073 | 282 | ip2 = ip_set_range_to_cidr(ip2, ip2_to, &cidr); |
5d50e1d8 JK |
283 | e.cidr = cidr - 1; |
284 | ret = adtfn(set, &e, &ext, &ext, flags); | |
d0d9e0a5 JK |
285 | |
286 | if (ret && !ip_set_eexist(ret, flags)) | |
287 | return ret; | |
ca0f6a5c JK |
288 | |
289 | ret = 0; | |
0b8d9073 JK |
290 | } while (ip2++ < ip2_to); |
291 | ip2 = ip2_from; | |
41d22f7b | 292 | } |
0b8d9073 | 293 | p = port; |
3d14b171 | 294 | } |
41d22f7b JK |
295 | return ret; |
296 | } | |
297 | ||
03c8b234 | 298 | /* IPv6 variant */ |
41d22f7b JK |
299 | |
300 | struct hash_ipportnet6_elem { | |
301 | union nf_inet_addr ip; | |
302 | union nf_inet_addr ip2; | |
303 | __be16 port; | |
2a7cef2a JK |
304 | u8 cidr:7; |
305 | u8 nomatch:1; | |
41d22f7b JK |
306 | u8 proto; |
307 | }; | |
308 | ||
5d50e1d8 JK |
309 | /* Common functions */ |
310 | ||
8dea982a | 311 | static bool |
41d22f7b | 312 | hash_ipportnet6_data_equal(const struct hash_ipportnet6_elem *ip1, |
89dc79b7 JK |
313 | const struct hash_ipportnet6_elem *ip2, |
314 | u32 *multi) | |
41d22f7b | 315 | { |
29e3b160 YH |
316 | return ipv6_addr_equal(&ip1->ip.in6, &ip2->ip.in6) && |
317 | ipv6_addr_equal(&ip1->ip2.in6, &ip2->ip2.in6) && | |
41d22f7b JK |
318 | ip1->cidr == ip2->cidr && |
319 | ip1->port == ip2->port && | |
320 | ip1->proto == ip2->proto; | |
321 | } | |
322 | ||
8dea982a | 323 | static int |
5d50e1d8 | 324 | hash_ipportnet6_do_data_match(const struct hash_ipportnet6_elem *elem) |
2a7cef2a | 325 | { |
5d50e1d8 | 326 | return elem->nomatch ? -ENOTEMPTY : 1; |
2a7cef2a JK |
327 | } |
328 | ||
8dea982a | 329 | static void |
5d50e1d8 | 330 | hash_ipportnet6_data_set_flags(struct hash_ipportnet6_elem *elem, u32 flags) |
2a7cef2a | 331 | { |
5d50e1d8 | 332 | elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH); |
2a7cef2a JK |
333 | } |
334 | ||
8dea982a | 335 | static void |
5d50e1d8 | 336 | hash_ipportnet6_data_reset_flags(struct hash_ipportnet6_elem *elem, u8 *flags) |
41d22f7b | 337 | { |
5d50e1d8 | 338 | swap(*flags, elem->nomatch); |
41d22f7b JK |
339 | } |
340 | ||
8dea982a | 341 | static void |
41d22f7b JK |
342 | hash_ipportnet6_data_netmask(struct hash_ipportnet6_elem *elem, u8 cidr) |
343 | { | |
344 | ip6_netmask(&elem->ip2, cidr); | |
2a7cef2a | 345 | elem->cidr = cidr - 1; |
41d22f7b JK |
346 | } |
347 | ||
348 | static bool | |
349 | hash_ipportnet6_data_list(struct sk_buff *skb, | |
350 | const struct hash_ipportnet6_elem *data) | |
351 | { | |
2a7cef2a JK |
352 | u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0; |
353 | ||
7cf7899d DM |
354 | if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip.in6) || |
355 | nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip2.in6) || | |
356 | nla_put_net16(skb, IPSET_ATTR_PORT, data->port) || | |
357 | nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr + 1) || | |
358 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) || | |
359 | (flags && | |
360 | nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags)))) | |
361 | goto nla_put_failure; | |
728a7e69 | 362 | return false; |
41d22f7b JK |
363 | |
364 | nla_put_failure: | |
728a7e69 | 365 | return true; |
41d22f7b JK |
366 | } |
367 | ||
8dea982a | 368 | static void |
21956ab2 | 369 | hash_ipportnet6_data_next(struct hash_ipportnet6_elem *next, |
5d50e1d8 | 370 | const struct hash_ipportnet6_elem *d) |
41d22f7b | 371 | { |
5d50e1d8 | 372 | next->port = d->port; |
41d22f7b JK |
373 | } |
374 | ||
5d50e1d8 | 375 | #undef MTYPE |
41d22f7b JK |
376 | #undef HOST_MASK |
377 | ||
5d50e1d8 | 378 | #define MTYPE hash_ipportnet6 |
41d22f7b | 379 | #define HOST_MASK 128 |
5d50e1d8 JK |
380 | #define IP_SET_EMIT_CREATE |
381 | #include "ip_set_hash_gen.h" | |
3d14b171 | 382 | |
41d22f7b JK |
383 | static int |
384 | hash_ipportnet6_kadt(struct ip_set *set, const struct sk_buff *skb, | |
b66554cf | 385 | const struct xt_action_param *par, |
5d50e1d8 | 386 | enum ipset_adt adt, struct ip_set_adt_opt *opt) |
41d22f7b | 387 | { |
21956ab2 | 388 | const struct hash_ipportnet6 *h = set->data; |
41d22f7b | 389 | ipset_adtfn adtfn = set->variant->adt[adt]; |
5d50e1d8 | 390 | struct hash_ipportnet6_elem e = { |
f690cbae | 391 | .cidr = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK), |
9b03a5ef | 392 | }; |
ca134ce8 | 393 | struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set); |
41d22f7b | 394 | |
41d22f7b | 395 | if (adt == IPSET_TEST) |
5d50e1d8 | 396 | e.cidr = HOST_MASK - 1; |
41d22f7b | 397 | |
ac8cc925 | 398 | if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC, |
5d50e1d8 | 399 | &e.port, &e.proto)) |
41d22f7b JK |
400 | return -EINVAL; |
401 | ||
5d50e1d8 JK |
402 | ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6); |
403 | ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2.in6); | |
404 | ip6_netmask(&e.ip2, e.cidr + 1); | |
41d22f7b | 405 | |
5d50e1d8 | 406 | return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); |
41d22f7b JK |
407 | } |
408 | ||
409 | static int | |
410 | hash_ipportnet6_uadt(struct ip_set *set, struct nlattr *tb[], | |
3d14b171 | 411 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
41d22f7b | 412 | { |
21956ab2 | 413 | const struct hash_ipportnet6 *h = set->data; |
41d22f7b | 414 | ipset_adtfn adtfn = set->variant->adt[adt]; |
5d50e1d8 | 415 | struct hash_ipportnet6_elem e = { .cidr = HOST_MASK - 1 }; |
ca134ce8 | 416 | struct ip_set_ext ext = IP_SET_INIT_UEXT(set); |
41d22f7b | 417 | u32 port, port_to; |
5e0c1eb7 | 418 | bool with_ports = false; |
2a7cef2a | 419 | u8 cidr; |
41d22f7b JK |
420 | int ret; |
421 | ||
a212e08e SP |
422 | if (tb[IPSET_ATTR_LINENO]) |
423 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); | |
424 | ||
41d22f7b JK |
425 | if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] || |
426 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || | |
427 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || | |
2c227f27 | 428 | !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS))) |
41d22f7b | 429 | return -IPSET_ERR_PROTOCOL; |
d0d9e0a5 JK |
430 | if (unlikely(tb[IPSET_ATTR_IP_TO])) |
431 | return -IPSET_ERR_HASH_RANGE_UNSUPPORTED; | |
2c227f27 | 432 | if (unlikely(tb[IPSET_ATTR_CIDR])) { |
8851e799 | 433 | cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]); |
2c227f27 SP |
434 | |
435 | if (cidr != HOST_MASK) | |
436 | return -IPSET_ERR_INVALID_CIDR; | |
437 | } | |
41d22f7b | 438 | |
8e55d2e5 SP |
439 | ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip); |
440 | if (ret) | |
441 | return ret; | |
442 | ||
443 | ret = ip_set_get_extensions(set, tb, &ext); | |
41d22f7b JK |
444 | if (ret) |
445 | return ret; | |
446 | ||
5d50e1d8 | 447 | ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip2); |
41d22f7b JK |
448 | if (ret) |
449 | return ret; | |
450 | ||
2a7cef2a JK |
451 | if (tb[IPSET_ATTR_CIDR2]) { |
452 | cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]); | |
453 | if (!cidr || cidr > HOST_MASK) | |
454 | return -IPSET_ERR_INVALID_CIDR; | |
5d50e1d8 | 455 | e.cidr = cidr - 1; |
2a7cef2a | 456 | } |
41d22f7b | 457 | |
5d50e1d8 | 458 | ip6_netmask(&e.ip2, e.cidr + 1); |
41d22f7b | 459 | |
d25472e4 | 460 | e.port = nla_get_be16(tb[IPSET_ATTR_PORT]); |
41d22f7b JK |
461 | |
462 | if (tb[IPSET_ATTR_PROTO]) { | |
5d50e1d8 JK |
463 | e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]); |
464 | with_ports = ip_set_proto_with_ports(e.proto); | |
41d22f7b | 465 | |
5d50e1d8 | 466 | if (e.proto == 0) |
41d22f7b | 467 | return -IPSET_ERR_INVALID_PROTO; |
ca0f6a5c | 468 | } else { |
41d22f7b | 469 | return -IPSET_ERR_MISSING_PROTO; |
ca0f6a5c | 470 | } |
41d22f7b | 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 | 476 | u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]); |
ca0f6a5c | 477 | |
2a7cef2a | 478 | if (cadt_flags & IPSET_FLAG_NOMATCH) |
43c56e59 | 479 | flags |= (IPSET_FLAG_NOMATCH << 16); |
2a7cef2a JK |
480 | } |
481 | ||
5e0c1eb7 | 482 | if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) { |
5d50e1d8 | 483 | ret = adtfn(set, &e, &ext, &ext, flags); |
0f1799ba | 484 | return ip_set_enomatch(ret, flags, adt, set) ? -ret : |
43c56e59 | 485 | ip_set_eexist(ret, flags) ? 0 : ret; |
41d22f7b JK |
486 | } |
487 | ||
5d50e1d8 | 488 | port = ntohs(e.port); |
41d22f7b JK |
489 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
490 | if (port > port_to) | |
491 | swap(port, port_to); | |
492 | ||
3d14b171 | 493 | if (retried) |
6e27c9b4 | 494 | port = ntohs(h->next.port); |
41d22f7b | 495 | for (; port <= port_to; port++) { |
5d50e1d8 JK |
496 | e.port = htons(port); |
497 | ret = adtfn(set, &e, &ext, &ext, flags); | |
41d22f7b JK |
498 | |
499 | if (ret && !ip_set_eexist(ret, flags)) | |
500 | return ret; | |
ca0f6a5c JK |
501 | |
502 | ret = 0; | |
41d22f7b JK |
503 | } |
504 | return ret; | |
505 | } | |
506 | ||
41d22f7b JK |
507 | static struct ip_set_type hash_ipportnet_type __read_mostly = { |
508 | .name = "hash:ip,port,net", | |
509 | .protocol = IPSET_PROTOCOL, | |
3e0304a5 JK |
510 | .features = IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2 | |
511 | IPSET_TYPE_NOMATCH, | |
41d22f7b | 512 | .dimension = IPSET_DIM_THREE, |
c15f1c83 | 513 | .family = NFPROTO_UNSPEC, |
35b8dcf8 JK |
514 | .revision_min = IPSET_TYPE_REV_MIN, |
515 | .revision_max = IPSET_TYPE_REV_MAX, | |
41d22f7b JK |
516 | .create = hash_ipportnet_create, |
517 | .create_policy = { | |
518 | [IPSET_ATTR_HASHSIZE] = { .type = NLA_U32 }, | |
519 | [IPSET_ATTR_MAXELEM] = { .type = NLA_U32 }, | |
520 | [IPSET_ATTR_PROBES] = { .type = NLA_U8 }, | |
521 | [IPSET_ATTR_RESIZE] = { .type = NLA_U8 }, | |
522 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, | |
5d50e1d8 | 523 | [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, |
41d22f7b JK |
524 | }, |
525 | .adt_policy = { | |
526 | [IPSET_ATTR_IP] = { .type = NLA_NESTED }, | |
527 | [IPSET_ATTR_IP_TO] = { .type = NLA_NESTED }, | |
528 | [IPSET_ATTR_IP2] = { .type = NLA_NESTED }, | |
d0d9e0a5 | 529 | [IPSET_ATTR_IP2_TO] = { .type = NLA_NESTED }, |
41d22f7b JK |
530 | [IPSET_ATTR_PORT] = { .type = NLA_U16 }, |
531 | [IPSET_ATTR_PORT_TO] = { .type = NLA_U16 }, | |
532 | [IPSET_ATTR_CIDR] = { .type = NLA_U8 }, | |
533 | [IPSET_ATTR_CIDR2] = { .type = NLA_U8 }, | |
534 | [IPSET_ATTR_PROTO] = { .type = NLA_U8 }, | |
2a7cef2a | 535 | [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, |
41d22f7b JK |
536 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, |
537 | [IPSET_ATTR_LINENO] = { .type = NLA_U32 }, | |
00d71b27 JK |
538 | [IPSET_ATTR_BYTES] = { .type = NLA_U64 }, |
539 | [IPSET_ATTR_PACKETS] = { .type = NLA_U64 }, | |
03726186 SP |
540 | [IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING, |
541 | .len = IPSET_MAX_COMMENT_SIZE }, | |
af331419 AD |
542 | [IPSET_ATTR_SKBMARK] = { .type = NLA_U64 }, |
543 | [IPSET_ATTR_SKBPRIO] = { .type = NLA_U32 }, | |
544 | [IPSET_ATTR_SKBQUEUE] = { .type = NLA_U16 }, | |
41d22f7b JK |
545 | }, |
546 | .me = THIS_MODULE, | |
547 | }; | |
548 | ||
549 | static int __init | |
550 | hash_ipportnet_init(void) | |
551 | { | |
552 | return ip_set_type_register(&hash_ipportnet_type); | |
553 | } | |
554 | ||
555 | static void __exit | |
556 | hash_ipportnet_fini(void) | |
557 | { | |
18f84d41 | 558 | rcu_barrier(); |
41d22f7b JK |
559 | ip_set_type_unregister(&hash_ipportnet_type); |
560 | } | |
561 | ||
562 | module_init(hash_ipportnet_init); | |
563 | module_exit(hash_ipportnet_fini); |