1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@netfilter.org> */ |
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> |
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> |
20 | #include <linux/netfilter/ipset/ip_set_getport.h> |
21 | #include <linux/netfilter/ipset/ip_set_hash.h> |
22 | |
23 | #define IPSET_TYPE_REV_MIN 0 |
24 | /* 0 Comments support added */ |
25 | /* 1 Forceadd support added */ |
26 | /* 2 skbinfo support added */ |
27 | #define IPSET_TYPE_REV_MAX 3 /* bucketsize, initval support added */ |
28 | |
29 | MODULE_LICENSE("GPL" ); |
30 | MODULE_AUTHOR("Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>" ); |
31 | IP_SET_MODULE_DESC("hash:net,port,net" , IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX); |
32 | MODULE_ALIAS("ip_set_hash:net,port,net" ); |
33 | |
34 | /* Type specific function prefix */ |
35 | #define HTYPE hash_netportnet |
36 | #define IP_SET_HASH_WITH_PROTO |
37 | #define IP_SET_HASH_WITH_NETS |
38 | #define IPSET_NET_COUNT 2 |
39 | #define IP_SET_HASH_WITH_NET0 |
40 | |
41 | /* IPv4 variant */ |
42 | |
43 | /* Member elements */ |
44 | struct hash_netportnet4_elem { |
45 | union { |
46 | __be32 ip[2]; |
47 | __be64 ipcmp; |
48 | }; |
49 | __be16 port; |
50 | union { |
51 | u8 cidr[2]; |
52 | u16 ccmp; |
53 | }; |
54 | u16 padding; |
55 | u8 nomatch; |
56 | u8 proto; |
57 | }; |
58 | |
59 | /* Common functions */ |
60 | |
61 | static bool |
62 | hash_netportnet4_data_equal(const struct hash_netportnet4_elem *ip1, |
63 | const struct hash_netportnet4_elem *ip2, |
64 | u32 *multi) |
65 | { |
66 | return ip1->ipcmp == ip2->ipcmp && |
67 | ip1->ccmp == ip2->ccmp && |
68 | ip1->port == ip2->port && |
69 | ip1->proto == ip2->proto; |
70 | } |
71 | |
72 | static int |
73 | hash_netportnet4_do_data_match(const struct hash_netportnet4_elem *elem) |
74 | { |
75 | return elem->nomatch ? -ENOTEMPTY : 1; |
76 | } |
77 | |
78 | static void |
79 | hash_netportnet4_data_set_flags(struct hash_netportnet4_elem *elem, u32 flags) |
80 | { |
81 | elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH); |
82 | } |
83 | |
84 | static void |
85 | hash_netportnet4_data_reset_flags(struct hash_netportnet4_elem *elem, u8 *flags) |
86 | { |
87 | swap(*flags, elem->nomatch); |
88 | } |
89 | |
90 | static void |
91 | hash_netportnet4_data_reset_elem(struct hash_netportnet4_elem *elem, |
92 | struct hash_netportnet4_elem *orig) |
93 | { |
94 | elem->ip[1] = orig->ip[1]; |
95 | } |
96 | |
97 | static void |
98 | hash_netportnet4_data_netmask(struct hash_netportnet4_elem *elem, |
99 | u8 cidr, bool inner) |
100 | { |
101 | if (inner) { |
102 | elem->ip[1] &= ip_set_netmask(pfxlen: cidr); |
103 | elem->cidr[1] = cidr; |
104 | } else { |
105 | elem->ip[0] &= ip_set_netmask(pfxlen: cidr); |
106 | elem->cidr[0] = cidr; |
107 | } |
108 | } |
109 | |
110 | static bool |
111 | hash_netportnet4_data_list(struct sk_buff *skb, |
112 | const struct hash_netportnet4_elem *data) |
113 | { |
114 | u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0; |
115 | |
116 | if (nla_put_ipaddr4(skb, type: IPSET_ATTR_IP, ipaddr: data->ip[0]) || |
117 | nla_put_ipaddr4(skb, type: IPSET_ATTR_IP2, ipaddr: data->ip[1]) || |
118 | nla_put_net16(skb, attrtype: IPSET_ATTR_PORT, value: data->port) || |
119 | nla_put_u8(skb, attrtype: IPSET_ATTR_CIDR, value: data->cidr[0]) || |
120 | nla_put_u8(skb, attrtype: IPSET_ATTR_CIDR2, value: data->cidr[1]) || |
121 | nla_put_u8(skb, attrtype: IPSET_ATTR_PROTO, value: data->proto) || |
122 | (flags && |
123 | nla_put_net32(skb, attrtype: IPSET_ATTR_CADT_FLAGS, htonl(flags)))) |
124 | goto nla_put_failure; |
125 | return false; |
126 | |
127 | nla_put_failure: |
128 | return true; |
129 | } |
130 | |
131 | static void |
132 | hash_netportnet4_data_next(struct hash_netportnet4_elem *next, |
133 | const struct hash_netportnet4_elem *d) |
134 | { |
135 | next->ipcmp = d->ipcmp; |
136 | next->port = d->port; |
137 | } |
138 | |
139 | #define MTYPE hash_netportnet4 |
140 | #define HOST_MASK 32 |
141 | #include "ip_set_hash_gen.h" |
142 | |
143 | static void |
144 | hash_netportnet4_init(struct hash_netportnet4_elem *e) |
145 | { |
146 | e->cidr[0] = HOST_MASK; |
147 | e->cidr[1] = HOST_MASK; |
148 | } |
149 | |
150 | static int |
151 | hash_netportnet4_kadt(struct ip_set *set, const struct sk_buff *skb, |
152 | const struct xt_action_param *par, |
153 | enum ipset_adt adt, struct ip_set_adt_opt *opt) |
154 | { |
155 | const struct hash_netportnet4 *h = set->data; |
156 | ipset_adtfn adtfn = set->variant->adt[adt]; |
157 | struct hash_netportnet4_elem e = { }; |
158 | struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set); |
159 | |
160 | e.cidr[0] = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK); |
161 | e.cidr[1] = INIT_CIDR(h->nets[0].cidr[1], HOST_MASK); |
162 | if (adt == IPSET_TEST) |
163 | e.ccmp = (HOST_MASK << (sizeof(e.cidr[0]) * 8)) | HOST_MASK; |
164 | |
165 | if (!ip_set_get_ip4_port(skb, src: opt->flags & IPSET_DIM_TWO_SRC, |
166 | port: &e.port, proto: &e.proto)) |
167 | return -EINVAL; |
168 | |
169 | ip4addrptr(skb, src: opt->flags & IPSET_DIM_ONE_SRC, addr: &e.ip[0]); |
170 | ip4addrptr(skb, src: opt->flags & IPSET_DIM_THREE_SRC, addr: &e.ip[1]); |
171 | e.ip[0] &= ip_set_netmask(pfxlen: e.cidr[0]); |
172 | e.ip[1] &= ip_set_netmask(pfxlen: e.cidr[1]); |
173 | |
174 | return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); |
175 | } |
176 | |
177 | static u32 |
178 | hash_netportnet4_range_to_cidr(u32 from, u32 to, u8 *cidr) |
179 | { |
180 | if (from == 0 && to == UINT_MAX) { |
181 | *cidr = 0; |
182 | return to; |
183 | } |
184 | return ip_set_range_to_cidr(from, to, cidr); |
185 | } |
186 | |
187 | static int |
188 | hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[], |
189 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
190 | { |
191 | struct hash_netportnet4 *h = set->data; |
192 | ipset_adtfn adtfn = set->variant->adt[adt]; |
193 | struct hash_netportnet4_elem e = { }; |
194 | struct ip_set_ext ext = IP_SET_INIT_UEXT(set); |
195 | u32 ip = 0, ip_to = 0, p = 0, port, port_to; |
196 | u32 ip2_from = 0, ip2_to = 0, ip2, i = 0; |
197 | bool with_ports = false; |
198 | int ret; |
199 | |
200 | if (tb[IPSET_ATTR_LINENO]) |
201 | *lineno = nla_get_u32(nla: tb[IPSET_ATTR_LINENO]); |
202 | |
203 | hash_netportnet4_init(e: &e); |
204 | if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] || |
205 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || |
206 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || |
207 | !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS))) |
208 | return -IPSET_ERR_PROTOCOL; |
209 | |
210 | ret = ip_set_get_hostipaddr4(nla: tb[IPSET_ATTR_IP], ipaddr: &ip); |
211 | if (ret) |
212 | return ret; |
213 | |
214 | ret = ip_set_get_hostipaddr4(nla: tb[IPSET_ATTR_IP2], ipaddr: &ip2_from); |
215 | if (ret) |
216 | return ret; |
217 | |
218 | ret = ip_set_get_extensions(set, tb, ext: &ext); |
219 | if (ret) |
220 | return ret; |
221 | |
222 | if (tb[IPSET_ATTR_CIDR]) { |
223 | e.cidr[0] = nla_get_u8(nla: tb[IPSET_ATTR_CIDR]); |
224 | if (e.cidr[0] > HOST_MASK) |
225 | return -IPSET_ERR_INVALID_CIDR; |
226 | } |
227 | |
228 | if (tb[IPSET_ATTR_CIDR2]) { |
229 | e.cidr[1] = nla_get_u8(nla: tb[IPSET_ATTR_CIDR2]); |
230 | if (e.cidr[1] > HOST_MASK) |
231 | return -IPSET_ERR_INVALID_CIDR; |
232 | } |
233 | |
234 | e.port = nla_get_be16(nla: tb[IPSET_ATTR_PORT]); |
235 | |
236 | if (tb[IPSET_ATTR_PROTO]) { |
237 | e.proto = nla_get_u8(nla: tb[IPSET_ATTR_PROTO]); |
238 | with_ports = ip_set_proto_with_ports(proto: e.proto); |
239 | |
240 | if (e.proto == 0) |
241 | return -IPSET_ERR_INVALID_PROTO; |
242 | } else { |
243 | return -IPSET_ERR_MISSING_PROTO; |
244 | } |
245 | |
246 | if (!(with_ports || e.proto == IPPROTO_ICMP)) |
247 | e.port = 0; |
248 | |
249 | if (tb[IPSET_ATTR_CADT_FLAGS]) { |
250 | u32 cadt_flags = ip_set_get_h32(attr: tb[IPSET_ATTR_CADT_FLAGS]); |
251 | |
252 | if (cadt_flags & IPSET_FLAG_NOMATCH) |
253 | flags |= (IPSET_FLAG_NOMATCH << 16); |
254 | } |
255 | |
256 | with_ports = with_ports && tb[IPSET_ATTR_PORT_TO]; |
257 | if (adt == IPSET_TEST || |
258 | !(tb[IPSET_ATTR_IP_TO] || with_ports || tb[IPSET_ATTR_IP2_TO])) { |
259 | e.ip[0] = htonl(ip & ip_set_hostmask(e.cidr[0])); |
260 | e.ip[1] = htonl(ip2_from & ip_set_hostmask(e.cidr[1])); |
261 | ret = adtfn(set, &e, &ext, &ext, flags); |
262 | return ip_set_enomatch(ret, flags, adt, set) ? -ret : |
263 | ip_set_eexist(ret, flags) ? 0 : ret; |
264 | } |
265 | |
266 | ip_to = ip; |
267 | if (tb[IPSET_ATTR_IP_TO]) { |
268 | ret = ip_set_get_hostipaddr4(nla: tb[IPSET_ATTR_IP_TO], ipaddr: &ip_to); |
269 | if (ret) |
270 | return ret; |
271 | if (ip > ip_to) |
272 | swap(ip, ip_to); |
273 | if (unlikely(ip + UINT_MAX == ip_to)) |
274 | return -IPSET_ERR_HASH_RANGE; |
275 | } else { |
276 | ip_set_mask_from_to(ip, ip_to, e.cidr[0]); |
277 | } |
278 | |
279 | port_to = port = ntohs(e.port); |
280 | if (tb[IPSET_ATTR_PORT_TO]) { |
281 | port_to = ip_set_get_h16(attr: tb[IPSET_ATTR_PORT_TO]); |
282 | if (port > port_to) |
283 | swap(port, port_to); |
284 | } |
285 | |
286 | ip2_to = ip2_from; |
287 | if (tb[IPSET_ATTR_IP2_TO]) { |
288 | ret = ip_set_get_hostipaddr4(nla: tb[IPSET_ATTR_IP2_TO], ipaddr: &ip2_to); |
289 | if (ret) |
290 | return ret; |
291 | if (ip2_from > ip2_to) |
292 | swap(ip2_from, ip2_to); |
293 | if (unlikely(ip2_from + UINT_MAX == ip2_to)) |
294 | return -IPSET_ERR_HASH_RANGE; |
295 | } else { |
296 | ip_set_mask_from_to(ip2_from, ip2_to, e.cidr[1]); |
297 | } |
298 | |
299 | if (retried) { |
300 | ip = ntohl(h->next.ip[0]); |
301 | p = ntohs(h->next.port); |
302 | ip2 = ntohl(h->next.ip[1]); |
303 | } else { |
304 | p = port; |
305 | ip2 = ip2_from; |
306 | } |
307 | |
308 | do { |
309 | e.ip[0] = htonl(ip); |
310 | ip = hash_netportnet4_range_to_cidr(from: ip, to: ip_to, cidr: &e.cidr[0]); |
311 | for (; p <= port_to; p++) { |
312 | e.port = htons(p); |
313 | do { |
314 | i++; |
315 | e.ip[1] = htonl(ip2); |
316 | if (i > IPSET_MAX_RANGE) { |
317 | hash_netportnet4_data_next(next: &h->next, |
318 | d: &e); |
319 | return -ERANGE; |
320 | } |
321 | ip2 = hash_netportnet4_range_to_cidr(from: ip2, |
322 | to: ip2_to, cidr: &e.cidr[1]); |
323 | ret = adtfn(set, &e, &ext, &ext, flags); |
324 | if (ret && !ip_set_eexist(ret, flags)) |
325 | return ret; |
326 | |
327 | ret = 0; |
328 | } while (ip2++ < ip2_to); |
329 | ip2 = ip2_from; |
330 | } |
331 | p = port; |
332 | } while (ip++ < ip_to); |
333 | return ret; |
334 | } |
335 | |
336 | /* IPv6 variant */ |
337 | |
338 | struct hash_netportnet6_elem { |
339 | union nf_inet_addr ip[2]; |
340 | __be16 port; |
341 | union { |
342 | u8 cidr[2]; |
343 | u16 ccmp; |
344 | }; |
345 | u16 padding; |
346 | u8 nomatch; |
347 | u8 proto; |
348 | }; |
349 | |
350 | /* Common functions */ |
351 | |
352 | static bool |
353 | hash_netportnet6_data_equal(const struct hash_netportnet6_elem *ip1, |
354 | const struct hash_netportnet6_elem *ip2, |
355 | u32 *multi) |
356 | { |
357 | return ipv6_addr_equal(a1: &ip1->ip[0].in6, a2: &ip2->ip[0].in6) && |
358 | ipv6_addr_equal(a1: &ip1->ip[1].in6, a2: &ip2->ip[1].in6) && |
359 | ip1->ccmp == ip2->ccmp && |
360 | ip1->port == ip2->port && |
361 | ip1->proto == ip2->proto; |
362 | } |
363 | |
364 | static int |
365 | hash_netportnet6_do_data_match(const struct hash_netportnet6_elem *elem) |
366 | { |
367 | return elem->nomatch ? -ENOTEMPTY : 1; |
368 | } |
369 | |
370 | static void |
371 | hash_netportnet6_data_set_flags(struct hash_netportnet6_elem *elem, u32 flags) |
372 | { |
373 | elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH); |
374 | } |
375 | |
376 | static void |
377 | hash_netportnet6_data_reset_flags(struct hash_netportnet6_elem *elem, u8 *flags) |
378 | { |
379 | swap(*flags, elem->nomatch); |
380 | } |
381 | |
382 | static void |
383 | hash_netportnet6_data_reset_elem(struct hash_netportnet6_elem *elem, |
384 | struct hash_netportnet6_elem *orig) |
385 | { |
386 | elem->ip[1] = orig->ip[1]; |
387 | } |
388 | |
389 | static void |
390 | hash_netportnet6_data_netmask(struct hash_netportnet6_elem *elem, |
391 | u8 cidr, bool inner) |
392 | { |
393 | if (inner) { |
394 | ip6_netmask(ip: &elem->ip[1], prefix: cidr); |
395 | elem->cidr[1] = cidr; |
396 | } else { |
397 | ip6_netmask(ip: &elem->ip[0], prefix: cidr); |
398 | elem->cidr[0] = cidr; |
399 | } |
400 | } |
401 | |
402 | static bool |
403 | hash_netportnet6_data_list(struct sk_buff *skb, |
404 | const struct hash_netportnet6_elem *data) |
405 | { |
406 | u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0; |
407 | |
408 | if (nla_put_ipaddr6(skb, type: IPSET_ATTR_IP, ipaddrptr: &data->ip[0].in6) || |
409 | nla_put_ipaddr6(skb, type: IPSET_ATTR_IP2, ipaddrptr: &data->ip[1].in6) || |
410 | nla_put_net16(skb, attrtype: IPSET_ATTR_PORT, value: data->port) || |
411 | nla_put_u8(skb, attrtype: IPSET_ATTR_CIDR, value: data->cidr[0]) || |
412 | nla_put_u8(skb, attrtype: IPSET_ATTR_CIDR2, value: data->cidr[1]) || |
413 | nla_put_u8(skb, attrtype: IPSET_ATTR_PROTO, value: data->proto) || |
414 | (flags && |
415 | nla_put_net32(skb, attrtype: IPSET_ATTR_CADT_FLAGS, htonl(flags)))) |
416 | goto nla_put_failure; |
417 | return false; |
418 | |
419 | nla_put_failure: |
420 | return true; |
421 | } |
422 | |
423 | static void |
424 | hash_netportnet6_data_next(struct hash_netportnet6_elem *next, |
425 | const struct hash_netportnet6_elem *d) |
426 | { |
427 | next->port = d->port; |
428 | } |
429 | |
430 | #undef MTYPE |
431 | #undef HOST_MASK |
432 | |
433 | #define MTYPE hash_netportnet6 |
434 | #define HOST_MASK 128 |
435 | #define IP_SET_EMIT_CREATE |
436 | #include "ip_set_hash_gen.h" |
437 | |
438 | static void |
439 | hash_netportnet6_init(struct hash_netportnet6_elem *e) |
440 | { |
441 | e->cidr[0] = HOST_MASK; |
442 | e->cidr[1] = HOST_MASK; |
443 | } |
444 | |
445 | static int |
446 | hash_netportnet6_kadt(struct ip_set *set, const struct sk_buff *skb, |
447 | const struct xt_action_param *par, |
448 | enum ipset_adt adt, struct ip_set_adt_opt *opt) |
449 | { |
450 | const struct hash_netportnet6 *h = set->data; |
451 | ipset_adtfn adtfn = set->variant->adt[adt]; |
452 | struct hash_netportnet6_elem e = { }; |
453 | struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set); |
454 | |
455 | e.cidr[0] = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK); |
456 | e.cidr[1] = INIT_CIDR(h->nets[0].cidr[1], HOST_MASK); |
457 | if (adt == IPSET_TEST) |
458 | e.ccmp = (HOST_MASK << (sizeof(u8) * 8)) | HOST_MASK; |
459 | |
460 | if (!ip_set_get_ip6_port(skb, src: opt->flags & IPSET_DIM_TWO_SRC, |
461 | port: &e.port, proto: &e.proto)) |
462 | return -EINVAL; |
463 | |
464 | ip6addrptr(skb, src: opt->flags & IPSET_DIM_ONE_SRC, addr: &e.ip[0].in6); |
465 | ip6addrptr(skb, src: opt->flags & IPSET_DIM_THREE_SRC, addr: &e.ip[1].in6); |
466 | ip6_netmask(ip: &e.ip[0], prefix: e.cidr[0]); |
467 | ip6_netmask(ip: &e.ip[1], prefix: e.cidr[1]); |
468 | |
469 | return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); |
470 | } |
471 | |
472 | static int |
473 | hash_netportnet6_uadt(struct ip_set *set, struct nlattr *tb[], |
474 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
475 | { |
476 | const struct hash_netportnet6 *h = set->data; |
477 | ipset_adtfn adtfn = set->variant->adt[adt]; |
478 | struct hash_netportnet6_elem e = { }; |
479 | struct ip_set_ext ext = IP_SET_INIT_UEXT(set); |
480 | u32 port, port_to; |
481 | bool with_ports = false; |
482 | int ret; |
483 | |
484 | if (tb[IPSET_ATTR_LINENO]) |
485 | *lineno = nla_get_u32(nla: tb[IPSET_ATTR_LINENO]); |
486 | |
487 | hash_netportnet6_init(e: &e); |
488 | if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] || |
489 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || |
490 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || |
491 | !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS))) |
492 | return -IPSET_ERR_PROTOCOL; |
493 | if (unlikely(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_IP2_TO])) |
494 | return -IPSET_ERR_HASH_RANGE_UNSUPPORTED; |
495 | |
496 | ret = ip_set_get_ipaddr6(nla: tb[IPSET_ATTR_IP], ipaddr: &e.ip[0]); |
497 | if (ret) |
498 | return ret; |
499 | |
500 | ret = ip_set_get_ipaddr6(nla: tb[IPSET_ATTR_IP2], ipaddr: &e.ip[1]); |
501 | if (ret) |
502 | return ret; |
503 | |
504 | ret = ip_set_get_extensions(set, tb, ext: &ext); |
505 | if (ret) |
506 | return ret; |
507 | |
508 | if (tb[IPSET_ATTR_CIDR]) { |
509 | e.cidr[0] = nla_get_u8(nla: tb[IPSET_ATTR_CIDR]); |
510 | if (e.cidr[0] > HOST_MASK) |
511 | return -IPSET_ERR_INVALID_CIDR; |
512 | } |
513 | |
514 | if (tb[IPSET_ATTR_CIDR2]) { |
515 | e.cidr[1] = nla_get_u8(nla: tb[IPSET_ATTR_CIDR2]); |
516 | if (e.cidr[1] > HOST_MASK) |
517 | return -IPSET_ERR_INVALID_CIDR; |
518 | } |
519 | |
520 | ip6_netmask(ip: &e.ip[0], prefix: e.cidr[0]); |
521 | ip6_netmask(ip: &e.ip[1], prefix: e.cidr[1]); |
522 | |
523 | e.port = nla_get_be16(nla: tb[IPSET_ATTR_PORT]); |
524 | |
525 | if (tb[IPSET_ATTR_PROTO]) { |
526 | e.proto = nla_get_u8(nla: tb[IPSET_ATTR_PROTO]); |
527 | with_ports = ip_set_proto_with_ports(proto: e.proto); |
528 | |
529 | if (e.proto == 0) |
530 | return -IPSET_ERR_INVALID_PROTO; |
531 | } else { |
532 | return -IPSET_ERR_MISSING_PROTO; |
533 | } |
534 | |
535 | if (!(with_ports || e.proto == IPPROTO_ICMPV6)) |
536 | e.port = 0; |
537 | |
538 | if (tb[IPSET_ATTR_CADT_FLAGS]) { |
539 | u32 cadt_flags = ip_set_get_h32(attr: tb[IPSET_ATTR_CADT_FLAGS]); |
540 | |
541 | if (cadt_flags & IPSET_FLAG_NOMATCH) |
542 | flags |= (IPSET_FLAG_NOMATCH << 16); |
543 | } |
544 | |
545 | if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) { |
546 | ret = adtfn(set, &e, &ext, &ext, flags); |
547 | return ip_set_enomatch(ret, flags, adt, set) ? -ret : |
548 | ip_set_eexist(ret, flags) ? 0 : ret; |
549 | } |
550 | |
551 | port = ntohs(e.port); |
552 | port_to = ip_set_get_h16(attr: tb[IPSET_ATTR_PORT_TO]); |
553 | if (port > port_to) |
554 | swap(port, port_to); |
555 | |
556 | if (retried) |
557 | port = ntohs(h->next.port); |
558 | for (; port <= port_to; port++) { |
559 | e.port = htons(port); |
560 | ret = adtfn(set, &e, &ext, &ext, flags); |
561 | |
562 | if (ret && !ip_set_eexist(ret, flags)) |
563 | return ret; |
564 | |
565 | ret = 0; |
566 | } |
567 | return ret; |
568 | } |
569 | |
570 | static struct ip_set_type hash_netportnet_type __read_mostly = { |
571 | .name = "hash:net,port,net" , |
572 | .protocol = IPSET_PROTOCOL, |
573 | .features = IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2 | |
574 | IPSET_TYPE_NOMATCH, |
575 | .dimension = IPSET_DIM_THREE, |
576 | .family = NFPROTO_UNSPEC, |
577 | .revision_min = IPSET_TYPE_REV_MIN, |
578 | .revision_max = IPSET_TYPE_REV_MAX, |
579 | .create_flags[IPSET_TYPE_REV_MAX] = IPSET_CREATE_FLAG_BUCKETSIZE, |
580 | .create = hash_netportnet_create, |
581 | .create_policy = { |
582 | [IPSET_ATTR_HASHSIZE] = { .type = NLA_U32 }, |
583 | [IPSET_ATTR_MAXELEM] = { .type = NLA_U32 }, |
584 | [IPSET_ATTR_INITVAL] = { .type = NLA_U32 }, |
585 | [IPSET_ATTR_BUCKETSIZE] = { .type = NLA_U8 }, |
586 | [IPSET_ATTR_RESIZE] = { .type = NLA_U8 }, |
587 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, |
588 | [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, |
589 | }, |
590 | .adt_policy = { |
591 | [IPSET_ATTR_IP] = { .type = NLA_NESTED }, |
592 | [IPSET_ATTR_IP_TO] = { .type = NLA_NESTED }, |
593 | [IPSET_ATTR_IP2] = { .type = NLA_NESTED }, |
594 | [IPSET_ATTR_IP2_TO] = { .type = NLA_NESTED }, |
595 | [IPSET_ATTR_PORT] = { .type = NLA_U16 }, |
596 | [IPSET_ATTR_PORT_TO] = { .type = NLA_U16 }, |
597 | [IPSET_ATTR_CIDR] = { .type = NLA_U8 }, |
598 | [IPSET_ATTR_CIDR2] = { .type = NLA_U8 }, |
599 | [IPSET_ATTR_PROTO] = { .type = NLA_U8 }, |
600 | [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, |
601 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, |
602 | [IPSET_ATTR_LINENO] = { .type = NLA_U32 }, |
603 | [IPSET_ATTR_BYTES] = { .type = NLA_U64 }, |
604 | [IPSET_ATTR_PACKETS] = { .type = NLA_U64 }, |
605 | [IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING, |
606 | .len = IPSET_MAX_COMMENT_SIZE }, |
607 | [IPSET_ATTR_SKBMARK] = { .type = NLA_U64 }, |
608 | [IPSET_ATTR_SKBPRIO] = { .type = NLA_U32 }, |
609 | [IPSET_ATTR_SKBQUEUE] = { .type = NLA_U16 }, |
610 | }, |
611 | .me = THIS_MODULE, |
612 | }; |
613 | |
614 | static int __init |
615 | hash_netportnet_init(void) |
616 | { |
617 | return ip_set_type_register(set_type: &hash_netportnet_type); |
618 | } |
619 | |
620 | static void __exit |
621 | hash_netportnet_fini(void) |
622 | { |
623 | rcu_barrier(); |
624 | ip_set_type_unregister(set_type: &hash_netportnet_type); |
625 | } |
626 | |
627 | module_init(hash_netportnet_init); |
628 | module_exit(hash_netportnet_fini); |
629 | |