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942bf97b | 1 | /* Zebra Policy Based Routing (PBR) main handling. |
2 | * Copyright (C) 2018 Cumulus Networks, Inc. | |
3 | * | |
4 | * This file is part of FRR. | |
5 | * | |
6 | * FRR is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * FRR is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with FRR; see the file COPYING. If not, write to the Free | |
18 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
19 | * 02111-1307, USA. | |
20 | */ | |
21 | ||
22 | #include <zebra.h> | |
23 | ||
43fe6a2a DS |
24 | #include <jhash.h> |
25 | #include <hash.h> | |
f80ec7e3 | 26 | #include <memory.h> |
73a829f7 | 27 | #include <hook.h> |
43fe6a2a | 28 | |
942bf97b | 29 | #include "zebra/zebra_pbr.h" |
30 | #include "zebra/rt.h" | |
bf094f69 | 31 | #include "zebra/zapi_msg.h" |
f80ec7e3 | 32 | #include "zebra/zebra_memory.h" |
c0ea1ae7 | 33 | #include "zebra/zserv.h" |
f80ec7e3 PG |
34 | |
35 | /* definitions */ | |
36 | DEFINE_MTYPE_STATIC(ZEBRA, PBR_IPTABLE_IFNAME, "PBR interface list") | |
942bf97b | 37 | |
38 | /* definitions */ | |
586f4ccf PG |
39 | static const struct message ipset_type_msg[] = { |
40 | {IPSET_NET_PORT_NET, "net,port,net"}, | |
41 | {IPSET_NET_PORT, "net,port"}, | |
42 | {IPSET_NET_NET, "net,net"}, | |
43 | {IPSET_NET, "net"}, | |
44 | {0} | |
45 | }; | |
942bf97b | 46 | |
be729dd7 PG |
47 | const struct message icmp_typecode_str[] = { |
48 | { 0 << 8, "echo-reply"}, | |
49 | { 0 << 8, "pong"}, | |
50 | { 3 << 8, "network-unreachable"}, | |
51 | { (3 << 8) + 1, "host-unreachable"}, | |
52 | { (3 << 8) + 2, "protocol-unreachable"}, | |
53 | { (3 << 8) + 3, "port-unreachable"}, | |
54 | { (3 << 8) + 4, "fragmentation-needed"}, | |
55 | { (3 << 8) + 5, "source-route-failed"}, | |
56 | { (3 << 8) + 6, "network-unknown"}, | |
57 | { (3 << 8) + 7, "host-unknown"}, | |
58 | { (3 << 8) + 9, "network-prohibited"}, | |
59 | { (3 << 8) + 10, "host-prohibited"}, | |
60 | { (3 << 8) + 11, "TOS-network-unreachable"}, | |
61 | { (3 << 8) + 12, "TOS-host-unreachable"}, | |
62 | { (3 << 8) + 13, "communication-prohibited"}, | |
63 | { (3 << 8) + 14, "host-precedence-violation"}, | |
64 | { (3 << 8) + 15, "precedence-cutoff"}, | |
65 | { 4 << 8, "source-quench"}, | |
66 | { 5 << 8, "network-redirect"}, | |
67 | { (5 << 8) + 1, "host-redirect"}, | |
68 | { (5 << 8) + 2, "TOS-network-redirect"}, | |
69 | { (5 << 8) + 3, "TOS-host-redirect"}, | |
70 | { 8 << 8, "echo-request"}, | |
71 | { 8 << 8, "ping"}, | |
72 | { 9 << 8, "router-advertisement"}, | |
73 | { 10 << 8, "router-solicitation"}, | |
74 | { 11 << 8, "ttl-zero-during-transit"}, | |
75 | { (11 << 8) + 1, "ttl-zero-during-reassembly"}, | |
76 | { 12 << 8, "ip-header-bad"}, | |
77 | { (12 << 8) + 1, "required-option-missing"}, | |
78 | { 13 << 8, "timestamp-request"}, | |
79 | { 14 << 8, "timestamp-reply"}, | |
80 | { 17 << 8, "address-mask-request"}, | |
81 | { 18 << 8, "address-mask-reply"}, | |
82 | {0} | |
83 | }; | |
84 | ||
dc993e76 PG |
85 | /* definitions */ |
86 | static const struct message tcp_value_str[] = { | |
87 | {TCP_HEADER_FIN, "FIN"}, | |
88 | {TCP_HEADER_SYN, "SYN"}, | |
89 | {TCP_HEADER_RST, "RST"}, | |
90 | {TCP_HEADER_PSH, "PSH"}, | |
91 | {TCP_HEADER_ACK, "ACK"}, | |
92 | {TCP_HEADER_URG, "URG"}, | |
93 | {0} | |
94 | }; | |
95 | ||
5ac5b7cc PG |
96 | static const struct message fragment_value_str[] = { |
97 | {1, "dont-fragment"}, | |
98 | {2, "is-fragment"}, | |
99 | {4, "first-fragment"}, | |
100 | {8, "last-fragment"}, | |
101 | {0} | |
102 | }; | |
103 | ||
942bf97b | 104 | /* static function declarations */ |
73a829f7 PG |
105 | DEFINE_HOOK(zebra_pbr_ipset_entry_wrap_script_get_stat, (struct zebra_ns *zns, |
106 | struct zebra_pbr_ipset_entry *ipset, | |
107 | uint64_t *pkts, uint64_t *bytes), | |
108 | (zns, ipset, pkts, bytes)) | |
109 | ||
110 | DEFINE_HOOK(zebra_pbr_iptable_wrap_script_get_stat, (struct zebra_ns *zns, | |
111 | struct zebra_pbr_iptable *iptable, | |
112 | uint64_t *pkts, uint64_t *bytes), | |
113 | (zns, iptable, pkts, bytes)) | |
114 | ||
115 | DEFINE_HOOK(zebra_pbr_iptable_wrap_script_update, (struct zebra_ns *zns, | |
116 | int cmd, | |
117 | struct zebra_pbr_iptable *iptable), | |
118 | (zns, cmd, iptable)); | |
119 | ||
120 | DEFINE_HOOK(zebra_pbr_ipset_entry_wrap_script_update, (struct zebra_ns *zns, | |
121 | int cmd, | |
122 | struct zebra_pbr_ipset_entry *ipset), | |
123 | (zns, cmd, ipset)); | |
124 | ||
125 | DEFINE_HOOK(zebra_pbr_ipset_wrap_script_update, (struct zebra_ns *zns, | |
126 | int cmd, | |
127 | struct zebra_pbr_ipset *ipset), | |
128 | (zns, cmd, ipset)); | |
942bf97b | 129 | |
130 | /* Private functions */ | |
131 | ||
132 | /* Public functions */ | |
43fe6a2a | 133 | void zebra_pbr_rules_free(void *arg) |
1fbfe5a5 | 134 | { |
43fe6a2a DS |
135 | struct zebra_pbr_rule *rule; |
136 | ||
137 | rule = (struct zebra_pbr_rule *)arg; | |
138 | ||
ebecd649 | 139 | (void)kernel_del_pbr_rule(rule); |
43fe6a2a DS |
140 | XFREE(MTYPE_TMP, rule); |
141 | } | |
142 | ||
143 | uint32_t zebra_pbr_rules_hash_key(void *arg) | |
144 | { | |
145 | struct zebra_pbr_rule *rule; | |
146 | uint32_t key; | |
147 | ||
148 | rule = (struct zebra_pbr_rule *)arg; | |
5dd0722d PG |
149 | key = jhash_3words(rule->rule.seq, rule->rule.priority, |
150 | rule->rule.action.table, | |
151 | prefix_hash_key(&rule->rule.filter.src_ip)); | |
a0321978 DS |
152 | if (rule->ifp) |
153 | key = jhash_1word(rule->ifp->ifindex, key); | |
154 | else | |
155 | key = jhash_1word(0, key); | |
156 | ||
5dd0722d PG |
157 | if (rule->rule.filter.fwmark) |
158 | key = jhash_1word(rule->rule.filter.fwmark, key); | |
1907e4b8 PG |
159 | else |
160 | key = jhash_1word(0, key); | |
5dd0722d PG |
161 | return jhash_3words(rule->rule.filter.src_port, |
162 | rule->rule.filter.dst_port, | |
163 | prefix_hash_key(&rule->rule.filter.dst_ip), | |
164 | jhash_1word(rule->rule.unique, key)); | |
43fe6a2a DS |
165 | } |
166 | ||
167 | int zebra_pbr_rules_hash_equal(const void *arg1, const void *arg2) | |
168 | { | |
169 | const struct zebra_pbr_rule *r1, *r2; | |
170 | ||
171 | r1 = (const struct zebra_pbr_rule *)arg1; | |
172 | r2 = (const struct zebra_pbr_rule *)arg2; | |
173 | ||
5dd0722d | 174 | if (r1->rule.seq != r2->rule.seq) |
43fe6a2a DS |
175 | return 0; |
176 | ||
5dd0722d | 177 | if (r1->rule.priority != r2->rule.priority) |
43fe6a2a DS |
178 | return 0; |
179 | ||
5dd0722d | 180 | if (r1->rule.unique != r2->rule.unique) |
b6c5d343 DS |
181 | return 0; |
182 | ||
5dd0722d | 183 | if (r1->rule.action.table != r2->rule.action.table) |
43fe6a2a DS |
184 | return 0; |
185 | ||
5dd0722d | 186 | if (r1->rule.filter.src_port != r2->rule.filter.src_port) |
43fe6a2a DS |
187 | return 0; |
188 | ||
5dd0722d | 189 | if (r1->rule.filter.dst_port != r2->rule.filter.dst_port) |
43fe6a2a DS |
190 | return 0; |
191 | ||
5dd0722d | 192 | if (r1->rule.filter.fwmark != r2->rule.filter.fwmark) |
1907e4b8 PG |
193 | return 0; |
194 | ||
5dd0722d | 195 | if (!prefix_same(&r1->rule.filter.src_ip, &r2->rule.filter.src_ip)) |
43fe6a2a DS |
196 | return 0; |
197 | ||
5dd0722d | 198 | if (!prefix_same(&r1->rule.filter.dst_ip, &r2->rule.filter.dst_ip)) |
43fe6a2a DS |
199 | return 0; |
200 | ||
a0321978 DS |
201 | if (r1->ifp != r2->ifp) |
202 | return 0; | |
203 | ||
43fe6a2a DS |
204 | return 1; |
205 | } | |
206 | ||
f46bbab4 | 207 | struct pbr_rule_unique_lookup { |
8c3cd6c6 DS |
208 | struct zebra_pbr_rule *rule; |
209 | uint32_t unique; | |
37c606ff | 210 | struct interface *ifp; |
8c3cd6c6 DS |
211 | }; |
212 | ||
213 | static int pbr_rule_lookup_unique_walker(struct hash_backet *b, void *data) | |
214 | { | |
f46bbab4 | 215 | struct pbr_rule_unique_lookup *pul = data; |
8c3cd6c6 DS |
216 | struct zebra_pbr_rule *rule = b->data; |
217 | ||
37c606ff | 218 | if (pul->unique == rule->rule.unique && pul->ifp == rule->ifp) { |
8c3cd6c6 DS |
219 | pul->rule = rule; |
220 | return HASHWALK_ABORT; | |
221 | } | |
222 | ||
223 | return HASHWALK_CONTINUE; | |
224 | } | |
225 | ||
226 | static struct zebra_pbr_rule *pbr_rule_lookup_unique(struct zebra_ns *zns, | |
37c606ff DS |
227 | uint32_t unique, |
228 | struct interface *ifp) | |
8c3cd6c6 | 229 | { |
f46bbab4 | 230 | struct pbr_rule_unique_lookup pul; |
8c3cd6c6 DS |
231 | |
232 | pul.unique = unique; | |
37c606ff | 233 | pul.ifp = ifp; |
8c3cd6c6 DS |
234 | pul.rule = NULL; |
235 | hash_walk(zns->rules_hash, &pbr_rule_lookup_unique_walker, &pul); | |
236 | ||
237 | return pul.rule; | |
238 | } | |
239 | ||
7661461a PG |
240 | void zebra_pbr_ipset_free(void *arg) |
241 | { | |
242 | struct zebra_pbr_ipset *ipset; | |
73a829f7 | 243 | struct zebra_ns *zns; |
7661461a PG |
244 | |
245 | ipset = (struct zebra_pbr_ipset *)arg; | |
73a829f7 PG |
246 | if (vrf_is_backend_netns()) |
247 | zns = zebra_ns_lookup(ipset->vrf_id); | |
248 | else | |
249 | zns = zebra_ns_lookup(NS_DEFAULT); | |
250 | hook_call(zebra_pbr_ipset_wrap_script_update, | |
251 | zns, 0, ipset); | |
7661461a PG |
252 | XFREE(MTYPE_TMP, ipset); |
253 | } | |
254 | ||
255 | uint32_t zebra_pbr_ipset_hash_key(void *arg) | |
256 | { | |
257 | struct zebra_pbr_ipset *ipset = (struct zebra_pbr_ipset *)arg; | |
425bdd6b | 258 | uint32_t *pnt = (uint32_t *)&ipset->ipset_name; |
7661461a | 259 | |
425bdd6b | 260 | return jhash2(pnt, ZEBRA_IPSET_NAME_HASH_SIZE, 0x63ab42de); |
7661461a PG |
261 | } |
262 | ||
263 | int zebra_pbr_ipset_hash_equal(const void *arg1, const void *arg2) | |
264 | { | |
265 | const struct zebra_pbr_ipset *r1, *r2; | |
266 | ||
267 | r1 = (const struct zebra_pbr_ipset *)arg1; | |
268 | r2 = (const struct zebra_pbr_ipset *)arg2; | |
269 | ||
270 | if (r1->type != r2->type) | |
271 | return 0; | |
272 | if (r1->unique != r2->unique) | |
273 | return 0; | |
274 | if (strncmp(r1->ipset_name, r2->ipset_name, | |
275 | ZEBRA_IPSET_NAME_SIZE)) | |
276 | return 0; | |
277 | return 1; | |
278 | } | |
279 | ||
280 | void zebra_pbr_ipset_entry_free(void *arg) | |
281 | { | |
282 | struct zebra_pbr_ipset_entry *ipset; | |
73a829f7 | 283 | struct zebra_ns *zns; |
7661461a PG |
284 | |
285 | ipset = (struct zebra_pbr_ipset_entry *)arg; | |
73a829f7 PG |
286 | if (ipset->backpointer && vrf_is_backend_netns()) { |
287 | struct zebra_pbr_ipset *ips = ipset->backpointer; | |
288 | ||
289 | zns = zebra_ns_lookup((ns_id_t)ips->vrf_id); | |
290 | } else | |
291 | zns = zebra_ns_lookup(NS_DEFAULT); | |
292 | hook_call(zebra_pbr_ipset_entry_wrap_script_update, | |
293 | zns, 0, ipset); | |
7661461a PG |
294 | |
295 | XFREE(MTYPE_TMP, ipset); | |
296 | } | |
297 | ||
298 | uint32_t zebra_pbr_ipset_entry_hash_key(void *arg) | |
299 | { | |
300 | struct zebra_pbr_ipset_entry *ipset; | |
301 | uint32_t key; | |
302 | ||
303 | ipset = (struct zebra_pbr_ipset_entry *)arg; | |
304 | key = prefix_hash_key(&ipset->src); | |
305 | key = jhash_1word(ipset->unique, key); | |
306 | key = jhash_1word(prefix_hash_key(&ipset->dst), key); | |
25d760c5 PG |
307 | key = jhash(&ipset->dst_port_min, 2, key); |
308 | key = jhash(&ipset->dst_port_max, 2, key); | |
309 | key = jhash(&ipset->src_port_min, 2, key); | |
310 | key = jhash(&ipset->src_port_max, 2, key); | |
311 | key = jhash(&ipset->proto, 1, key); | |
7661461a PG |
312 | |
313 | return key; | |
314 | } | |
315 | ||
316 | int zebra_pbr_ipset_entry_hash_equal(const void *arg1, const void *arg2) | |
317 | { | |
318 | const struct zebra_pbr_ipset_entry *r1, *r2; | |
319 | ||
320 | r1 = (const struct zebra_pbr_ipset_entry *)arg1; | |
321 | r2 = (const struct zebra_pbr_ipset_entry *)arg2; | |
322 | ||
323 | if (r1->unique != r2->unique) | |
324 | return 0; | |
325 | ||
326 | if (!prefix_same(&r1->src, &r2->src)) | |
327 | return 0; | |
328 | ||
329 | if (!prefix_same(&r1->dst, &r2->dst)) | |
330 | return 0; | |
331 | ||
25d760c5 PG |
332 | if (r1->src_port_min != r2->src_port_min) |
333 | return 0; | |
334 | ||
335 | if (r1->src_port_max != r2->src_port_max) | |
336 | return 0; | |
337 | ||
338 | if (r1->dst_port_min != r2->dst_port_min) | |
339 | return 0; | |
340 | ||
341 | if (r1->dst_port_max != r2->dst_port_max) | |
342 | return 0; | |
343 | ||
344 | if (r1->proto != r2->proto) | |
345 | return 0; | |
7661461a PG |
346 | return 1; |
347 | } | |
348 | ||
7abd6c4f PG |
349 | void zebra_pbr_iptable_free(void *arg) |
350 | { | |
351 | struct zebra_pbr_iptable *iptable; | |
f80ec7e3 PG |
352 | struct listnode *node, *nnode; |
353 | char *name; | |
73a829f7 | 354 | struct zebra_ns *zns; |
7abd6c4f PG |
355 | |
356 | iptable = (struct zebra_pbr_iptable *)arg; | |
73a829f7 PG |
357 | if (vrf_is_backend_netns()) |
358 | zns = zebra_ns_lookup((ns_id_t)iptable->vrf_id); | |
359 | else | |
360 | zns = zebra_ns_lookup(NS_DEFAULT); | |
361 | hook_call(zebra_pbr_iptable_wrap_script_update, | |
362 | zns, 0, iptable); | |
7abd6c4f | 363 | |
f80ec7e3 PG |
364 | for (ALL_LIST_ELEMENTS(iptable->interface_name_list, |
365 | node, nnode, name)) { | |
366 | XFREE(MTYPE_PBR_IPTABLE_IFNAME, name); | |
367 | list_delete_node(iptable->interface_name_list, | |
368 | node); | |
369 | } | |
7abd6c4f PG |
370 | XFREE(MTYPE_TMP, iptable); |
371 | } | |
372 | ||
373 | uint32_t zebra_pbr_iptable_hash_key(void *arg) | |
374 | { | |
375 | struct zebra_pbr_iptable *iptable = (struct zebra_pbr_iptable *)arg; | |
376 | uint32_t *pnt = (uint32_t *)&(iptable->ipset_name); | |
377 | uint32_t key; | |
378 | ||
379 | key = jhash2(pnt, ZEBRA_IPSET_NAME_HASH_SIZE, | |
380 | 0x63ab42de); | |
381 | key = jhash_1word(iptable->fwmark, key); | |
e7f7dad4 PG |
382 | key = jhash_1word(iptable->pkt_len_min, key); |
383 | key = jhash_1word(iptable->pkt_len_max, key); | |
dc993e76 PG |
384 | key = jhash_1word(iptable->tcp_flags, key); |
385 | key = jhash_1word(iptable->tcp_mask_flags, key); | |
4977bd6c | 386 | key = jhash_1word(iptable->dscp_value, key); |
5ac5b7cc | 387 | key = jhash_1word(iptable->fragment, key); |
7abd6c4f PG |
388 | return jhash_3words(iptable->filter_bm, iptable->type, |
389 | iptable->unique, key); | |
390 | } | |
391 | ||
392 | int zebra_pbr_iptable_hash_equal(const void *arg1, const void *arg2) | |
393 | { | |
394 | const struct zebra_pbr_iptable *r1, *r2; | |
395 | ||
396 | r1 = (const struct zebra_pbr_iptable *)arg1; | |
397 | r2 = (const struct zebra_pbr_iptable *)arg2; | |
398 | ||
399 | if (r1->type != r2->type) | |
400 | return 0; | |
401 | if (r1->unique != r2->unique) | |
402 | return 0; | |
403 | if (r1->filter_bm != r2->filter_bm) | |
404 | return 0; | |
405 | if (r1->fwmark != r2->fwmark) | |
406 | return 0; | |
407 | if (r1->action != r2->action) | |
408 | return 0; | |
409 | if (strncmp(r1->ipset_name, r2->ipset_name, | |
410 | ZEBRA_IPSET_NAME_SIZE)) | |
411 | return 0; | |
e7f7dad4 PG |
412 | if (r1->pkt_len_min != r2->pkt_len_min) |
413 | return 0; | |
414 | if (r1->pkt_len_max != r2->pkt_len_max) | |
415 | return 0; | |
dc993e76 PG |
416 | if (r1->tcp_flags != r2->tcp_flags) |
417 | return 0; | |
418 | if (r1->tcp_mask_flags != r2->tcp_mask_flags) | |
419 | return 0; | |
4977bd6c PG |
420 | if (r1->dscp_value != r2->dscp_value) |
421 | return 0; | |
5ac5b7cc PG |
422 | if (r1->fragment != r2->fragment) |
423 | return 0; | |
7abd6c4f PG |
424 | return 1; |
425 | } | |
426 | ||
43fe6a2a DS |
427 | static void *pbr_rule_alloc_intern(void *arg) |
428 | { | |
429 | struct zebra_pbr_rule *zpr; | |
430 | struct zebra_pbr_rule *new; | |
431 | ||
432 | zpr = (struct zebra_pbr_rule *)arg; | |
433 | ||
434 | new = XCALLOC(MTYPE_TMP, sizeof(*new)); | |
435 | ||
436 | memcpy(new, zpr, sizeof(*zpr)); | |
437 | ||
438 | return new; | |
439 | } | |
440 | ||
a0321978 | 441 | void zebra_pbr_add_rule(struct zebra_ns *zns, struct zebra_pbr_rule *rule) |
43fe6a2a | 442 | { |
8c3cd6c6 | 443 | struct zebra_pbr_rule *unique = |
37c606ff | 444 | pbr_rule_lookup_unique(zns, rule->rule.unique, rule->ifp); |
8c3cd6c6 | 445 | |
43fe6a2a | 446 | (void)hash_get(zns->rules_hash, rule, pbr_rule_alloc_intern); |
ebecd649 | 447 | (void)kernel_add_pbr_rule(rule); |
8c3cd6c6 DS |
448 | /* |
449 | * Rule Replace semantics, if we have an old, install the | |
450 | * new rule, look above, and then delete the old | |
451 | */ | |
452 | if (unique) | |
453 | zebra_pbr_del_rule(zns, unique); | |
1fbfe5a5 DS |
454 | } |
455 | ||
a0321978 | 456 | void zebra_pbr_del_rule(struct zebra_ns *zns, struct zebra_pbr_rule *rule) |
1fbfe5a5 | 457 | { |
43fe6a2a DS |
458 | struct zebra_pbr_rule *lookup; |
459 | ||
460 | lookup = hash_lookup(zns->rules_hash, rule); | |
ebecd649 | 461 | (void)kernel_del_pbr_rule(rule); |
43fe6a2a | 462 | |
d5c52f76 DS |
463 | if (lookup) { |
464 | hash_release(zns->rules_hash, lookup); | |
43fe6a2a | 465 | XFREE(MTYPE_TMP, lookup); |
d5c52f76 | 466 | } else |
9df414fe QY |
467 | zlog_debug("%s: Rule being deleted we know nothing about", |
468 | __PRETTY_FUNCTION__); | |
1fbfe5a5 DS |
469 | } |
470 | ||
e69aa084 DS |
471 | static void zebra_pbr_cleanup_rules(struct hash_backet *b, void *data) |
472 | { | |
473 | struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT); | |
474 | struct zebra_pbr_rule *rule = b->data; | |
475 | int *sock = data; | |
476 | ||
477 | if (rule->sock == *sock) { | |
ebecd649 | 478 | (void)kernel_del_pbr_rule(rule); |
e69aa084 | 479 | hash_release(zns->rules_hash, rule); |
d5c52f76 | 480 | XFREE(MTYPE_TMP, rule); |
e69aa084 DS |
481 | } |
482 | } | |
483 | ||
c2ef5232 PG |
484 | static void zebra_pbr_cleanup_ipset(struct hash_backet *b, void *data) |
485 | { | |
486 | struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT); | |
487 | struct zebra_pbr_ipset *ipset = b->data; | |
488 | int *sock = data; | |
489 | ||
73a829f7 PG |
490 | if (ipset->sock == *sock) { |
491 | hook_call(zebra_pbr_ipset_wrap_script_update, | |
492 | zns, 0, ipset); | |
c2ef5232 | 493 | hash_release(zns->ipset_hash, ipset); |
73a829f7 | 494 | } |
c2ef5232 PG |
495 | } |
496 | ||
497 | static void zebra_pbr_cleanup_ipset_entry(struct hash_backet *b, void *data) | |
498 | { | |
499 | struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT); | |
500 | struct zebra_pbr_ipset_entry *ipset = b->data; | |
501 | int *sock = data; | |
502 | ||
73a829f7 PG |
503 | if (ipset->sock == *sock) { |
504 | hook_call(zebra_pbr_ipset_entry_wrap_script_update, | |
505 | zns, 0, ipset); | |
c2ef5232 | 506 | hash_release(zns->ipset_entry_hash, ipset); |
73a829f7 | 507 | } |
c2ef5232 PG |
508 | } |
509 | ||
510 | static void zebra_pbr_cleanup_iptable(struct hash_backet *b, void *data) | |
511 | { | |
512 | struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT); | |
513 | struct zebra_pbr_iptable *iptable = b->data; | |
514 | int *sock = data; | |
515 | ||
73a829f7 PG |
516 | if (iptable->sock == *sock) { |
517 | hook_call(zebra_pbr_iptable_wrap_script_update, | |
518 | zns, 0, iptable); | |
c2ef5232 | 519 | hash_release(zns->iptable_hash, iptable); |
73a829f7 | 520 | } |
c2ef5232 PG |
521 | } |
522 | ||
4c0ec639 | 523 | static int zebra_pbr_client_close_cleanup(struct zserv *client) |
e69aa084 | 524 | { |
4c0ec639 | 525 | int sock = client->sock; |
e69aa084 DS |
526 | struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT); |
527 | ||
4c0ec639 PG |
528 | if (!sock) |
529 | return 0; | |
e69aa084 | 530 | hash_iterate(zns->rules_hash, zebra_pbr_cleanup_rules, &sock); |
c2ef5232 PG |
531 | hash_iterate(zns->iptable_hash, |
532 | zebra_pbr_cleanup_iptable, &sock); | |
533 | hash_iterate(zns->ipset_entry_hash, | |
534 | zebra_pbr_cleanup_ipset_entry, &sock); | |
535 | hash_iterate(zns->ipset_hash, | |
536 | zebra_pbr_cleanup_ipset, &sock); | |
4c0ec639 PG |
537 | return 1; |
538 | } | |
539 | ||
540 | void zebra_pbr_init(void) | |
541 | { | |
c0ea1ae7 | 542 | hook_register(zserv_client_close, zebra_pbr_client_close_cleanup); |
e69aa084 DS |
543 | } |
544 | ||
7661461a PG |
545 | static void *pbr_ipset_alloc_intern(void *arg) |
546 | { | |
547 | struct zebra_pbr_ipset *zpi; | |
548 | struct zebra_pbr_ipset *new; | |
549 | ||
550 | zpi = (struct zebra_pbr_ipset *)arg; | |
551 | ||
552 | new = XCALLOC(MTYPE_TMP, sizeof(struct zebra_pbr_ipset)); | |
553 | ||
554 | memcpy(new, zpi, sizeof(*zpi)); | |
555 | ||
556 | return new; | |
557 | } | |
558 | ||
559 | void zebra_pbr_create_ipset(struct zebra_ns *zns, | |
560 | struct zebra_pbr_ipset *ipset) | |
561 | { | |
73a829f7 PG |
562 | int ret; |
563 | ||
7661461a | 564 | (void)hash_get(zns->ipset_hash, ipset, pbr_ipset_alloc_intern); |
73a829f7 PG |
565 | ret = hook_call(zebra_pbr_ipset_wrap_script_update, |
566 | zns, 1, ipset); | |
567 | kernel_pbr_ipset_add_del_status(ipset, | |
ea1c14f6 MS |
568 | ret ? ZEBRA_DPLANE_INSTALL_SUCCESS |
569 | : ZEBRA_DPLANE_INSTALL_FAILURE); | |
7661461a PG |
570 | } |
571 | ||
572 | void zebra_pbr_destroy_ipset(struct zebra_ns *zns, | |
573 | struct zebra_pbr_ipset *ipset) | |
574 | { | |
575 | struct zebra_pbr_ipset *lookup; | |
576 | ||
577 | lookup = hash_lookup(zns->ipset_hash, ipset); | |
73a829f7 PG |
578 | hook_call(zebra_pbr_ipset_wrap_script_update, |
579 | zns, 0, ipset); | |
de67547d PG |
580 | if (lookup) { |
581 | hash_release(zns->ipset_hash, lookup); | |
7661461a | 582 | XFREE(MTYPE_TMP, lookup); |
de67547d | 583 | } else |
9df414fe QY |
584 | zlog_debug( |
585 | "%s: IPSet Entry being deleted we know nothing about", | |
586 | __PRETTY_FUNCTION__); | |
7661461a PG |
587 | } |
588 | ||
ed78b7c8 PG |
589 | struct pbr_ipset_name_lookup { |
590 | struct zebra_pbr_ipset *ipset; | |
591 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; | |
592 | }; | |
593 | ||
5b0d92b8 | 594 | const char *zebra_pbr_ipset_type2str(uint32_t type) |
586f4ccf PG |
595 | { |
596 | return lookup_msg(ipset_type_msg, type, | |
597 | "Unrecognized IPset Type"); | |
598 | } | |
599 | ||
ed78b7c8 PG |
600 | static int zebra_pbr_ipset_pername_walkcb(struct hash_backet *backet, void *arg) |
601 | { | |
602 | struct pbr_ipset_name_lookup *pinl = | |
603 | (struct pbr_ipset_name_lookup *)arg; | |
604 | struct zebra_pbr_ipset *zpi = (struct zebra_pbr_ipset *)backet->data; | |
605 | ||
606 | if (!strncmp(pinl->ipset_name, zpi->ipset_name, | |
607 | ZEBRA_IPSET_NAME_SIZE)) { | |
608 | pinl->ipset = zpi; | |
609 | return HASHWALK_ABORT; | |
610 | } | |
611 | return HASHWALK_CONTINUE; | |
612 | } | |
613 | ||
d59c13af PG |
614 | struct zebra_pbr_ipset *zebra_pbr_lookup_ipset_pername(struct zebra_ns *zns, |
615 | char *ipsetname) | |
616 | { | |
ed78b7c8 PG |
617 | struct pbr_ipset_name_lookup pinl; |
618 | struct pbr_ipset_name_lookup *ptr = &pinl; | |
619 | ||
d59c13af PG |
620 | if (!ipsetname) |
621 | return NULL; | |
ed78b7c8 PG |
622 | memset(ptr, 0, sizeof(struct pbr_ipset_name_lookup)); |
623 | snprintf((char *)ptr->ipset_name, ZEBRA_IPSET_NAME_SIZE, "%s", | |
624 | ipsetname); | |
625 | hash_walk(zns->ipset_hash, zebra_pbr_ipset_pername_walkcb, ptr); | |
626 | return ptr->ipset; | |
d59c13af PG |
627 | } |
628 | ||
7661461a PG |
629 | static void *pbr_ipset_entry_alloc_intern(void *arg) |
630 | { | |
631 | struct zebra_pbr_ipset_entry *zpi; | |
632 | struct zebra_pbr_ipset_entry *new; | |
633 | ||
634 | zpi = (struct zebra_pbr_ipset_entry *)arg; | |
635 | ||
636 | new = XCALLOC(MTYPE_TMP, sizeof(struct zebra_pbr_ipset_entry)); | |
637 | ||
638 | memcpy(new, zpi, sizeof(*zpi)); | |
639 | ||
640 | return new; | |
641 | } | |
642 | ||
643 | void zebra_pbr_add_ipset_entry(struct zebra_ns *zns, | |
644 | struct zebra_pbr_ipset_entry *ipset) | |
645 | { | |
73a829f7 PG |
646 | int ret; |
647 | ||
7661461a PG |
648 | (void)hash_get(zns->ipset_entry_hash, ipset, |
649 | pbr_ipset_entry_alloc_intern); | |
73a829f7 PG |
650 | ret = hook_call(zebra_pbr_ipset_entry_wrap_script_update, |
651 | zns, 1, ipset); | |
652 | kernel_pbr_ipset_entry_add_del_status(ipset, | |
ea1c14f6 MS |
653 | ret ? ZEBRA_DPLANE_INSTALL_SUCCESS |
654 | : ZEBRA_DPLANE_INSTALL_FAILURE); | |
7661461a PG |
655 | } |
656 | ||
657 | void zebra_pbr_del_ipset_entry(struct zebra_ns *zns, | |
658 | struct zebra_pbr_ipset_entry *ipset) | |
659 | { | |
660 | struct zebra_pbr_ipset_entry *lookup; | |
661 | ||
425bdd6b | 662 | lookup = hash_lookup(zns->ipset_entry_hash, ipset); |
73a829f7 PG |
663 | hook_call(zebra_pbr_ipset_entry_wrap_script_update, |
664 | zns, 0, ipset); | |
de67547d PG |
665 | if (lookup) { |
666 | hash_release(zns->ipset_entry_hash, lookup); | |
7661461a | 667 | XFREE(MTYPE_TMP, lookup); |
de67547d | 668 | } else |
9df414fe QY |
669 | zlog_debug("%s: IPSet being deleted we know nothing about", |
670 | __PRETTY_FUNCTION__); | |
7661461a PG |
671 | } |
672 | ||
7abd6c4f PG |
673 | static void *pbr_iptable_alloc_intern(void *arg) |
674 | { | |
675 | struct zebra_pbr_iptable *zpi; | |
676 | struct zebra_pbr_iptable *new; | |
677 | ||
678 | zpi = (struct zebra_pbr_iptable *)arg; | |
679 | ||
680 | new = XCALLOC(MTYPE_TMP, sizeof(struct zebra_pbr_iptable)); | |
681 | ||
682 | memcpy(new, zpi, sizeof(*zpi)); | |
683 | ||
684 | return new; | |
685 | } | |
686 | ||
687 | void zebra_pbr_add_iptable(struct zebra_ns *zns, | |
688 | struct zebra_pbr_iptable *iptable) | |
689 | { | |
73a829f7 PG |
690 | int ret; |
691 | ||
7abd6c4f PG |
692 | (void)hash_get(zns->iptable_hash, iptable, |
693 | pbr_iptable_alloc_intern); | |
73a829f7 PG |
694 | ret = hook_call(zebra_pbr_iptable_wrap_script_update, zns, 1, iptable); |
695 | kernel_pbr_iptable_add_del_status(iptable, | |
ea1c14f6 MS |
696 | ret ? ZEBRA_DPLANE_INSTALL_SUCCESS |
697 | : ZEBRA_DPLANE_INSTALL_FAILURE); | |
7abd6c4f PG |
698 | } |
699 | ||
700 | void zebra_pbr_del_iptable(struct zebra_ns *zns, | |
701 | struct zebra_pbr_iptable *iptable) | |
702 | { | |
f80ec7e3 | 703 | struct zebra_pbr_iptable *lookup; |
7abd6c4f PG |
704 | |
705 | lookup = hash_lookup(zns->iptable_hash, iptable); | |
73a829f7 | 706 | hook_call(zebra_pbr_iptable_wrap_script_update, zns, 0, iptable); |
f80ec7e3 PG |
707 | if (lookup) { |
708 | struct listnode *node, *nnode; | |
709 | char *name; | |
710 | ||
711 | hash_release(zns->iptable_hash, lookup); | |
712 | for (ALL_LIST_ELEMENTS(iptable->interface_name_list, | |
713 | node, nnode, name)) { | |
714 | XFREE(MTYPE_PBR_IPTABLE_IFNAME, name); | |
715 | list_delete_node(iptable->interface_name_list, | |
716 | node); | |
717 | } | |
7abd6c4f | 718 | XFREE(MTYPE_TMP, lookup); |
f80ec7e3 | 719 | } else |
9df414fe QY |
720 | zlog_debug("%s: IPTable being deleted we know nothing about", |
721 | __PRETTY_FUNCTION__); | |
7abd6c4f PG |
722 | } |
723 | ||
942bf97b | 724 | /* |
725 | * Handle success or failure of rule (un)install in the kernel. | |
726 | */ | |
727 | void kernel_pbr_rule_add_del_status(struct zebra_pbr_rule *rule, | |
ea1c14f6 | 728 | enum zebra_dplane_status res) |
942bf97b | 729 | { |
b6c5d343 | 730 | switch (res) { |
ea1c14f6 | 731 | case ZEBRA_DPLANE_INSTALL_SUCCESS: |
b6c5d343 DS |
732 | zsend_rule_notify_owner(rule, ZAPI_RULE_INSTALLED); |
733 | break; | |
ea1c14f6 | 734 | case ZEBRA_DPLANE_INSTALL_FAILURE: |
b6c5d343 DS |
735 | zsend_rule_notify_owner(rule, ZAPI_RULE_FAIL_INSTALL); |
736 | break; | |
ea1c14f6 | 737 | case ZEBRA_DPLANE_DELETE_SUCCESS: |
0f03639d | 738 | zsend_rule_notify_owner(rule, ZAPI_RULE_REMOVED); |
b6c5d343 | 739 | break; |
ea1c14f6 | 740 | case ZEBRA_DPLANE_DELETE_FAILURE: |
34d9d5be | 741 | zsend_rule_notify_owner(rule, ZAPI_RULE_FAIL_REMOVE); |
b6c5d343 | 742 | break; |
ea1c14f6 MS |
743 | case ZEBRA_DPLANE_STATUS_NONE: |
744 | break; | |
b6c5d343 | 745 | } |
942bf97b | 746 | } |
747 | ||
425bdd6b PG |
748 | /* |
749 | * Handle success or failure of ipset (un)install in the kernel. | |
750 | */ | |
751 | void kernel_pbr_ipset_add_del_status(struct zebra_pbr_ipset *ipset, | |
ea1c14f6 | 752 | enum zebra_dplane_status res) |
425bdd6b PG |
753 | { |
754 | switch (res) { | |
ea1c14f6 | 755 | case ZEBRA_DPLANE_INSTALL_SUCCESS: |
425bdd6b PG |
756 | zsend_ipset_notify_owner(ipset, ZAPI_IPSET_INSTALLED); |
757 | break; | |
ea1c14f6 | 758 | case ZEBRA_DPLANE_INSTALL_FAILURE: |
425bdd6b PG |
759 | zsend_ipset_notify_owner(ipset, ZAPI_IPSET_FAIL_INSTALL); |
760 | break; | |
ea1c14f6 | 761 | case ZEBRA_DPLANE_DELETE_SUCCESS: |
4c550bcf PG |
762 | zsend_ipset_notify_owner(ipset, ZAPI_IPSET_REMOVED); |
763 | break; | |
ea1c14f6 | 764 | case ZEBRA_DPLANE_DELETE_FAILURE: |
34d9d5be | 765 | zsend_ipset_notify_owner(ipset, ZAPI_IPSET_FAIL_REMOVE); |
425bdd6b | 766 | break; |
ea1c14f6 MS |
767 | case ZEBRA_DPLANE_STATUS_NONE: |
768 | break; | |
425bdd6b PG |
769 | } |
770 | } | |
771 | ||
772 | /* | |
773 | * Handle success or failure of ipset (un)install in the kernel. | |
774 | */ | |
775 | void kernel_pbr_ipset_entry_add_del_status( | |
776 | struct zebra_pbr_ipset_entry *ipset, | |
ea1c14f6 | 777 | enum zebra_dplane_status res) |
425bdd6b PG |
778 | { |
779 | switch (res) { | |
ea1c14f6 | 780 | case ZEBRA_DPLANE_INSTALL_SUCCESS: |
425bdd6b PG |
781 | zsend_ipset_entry_notify_owner(ipset, |
782 | ZAPI_IPSET_ENTRY_INSTALLED); | |
783 | break; | |
ea1c14f6 | 784 | case ZEBRA_DPLANE_INSTALL_FAILURE: |
425bdd6b PG |
785 | zsend_ipset_entry_notify_owner(ipset, |
786 | ZAPI_IPSET_ENTRY_FAIL_INSTALL); | |
787 | break; | |
ea1c14f6 | 788 | case ZEBRA_DPLANE_DELETE_SUCCESS: |
4c550bcf PG |
789 | zsend_ipset_entry_notify_owner(ipset, |
790 | ZAPI_IPSET_ENTRY_REMOVED); | |
791 | break; | |
ea1c14f6 | 792 | case ZEBRA_DPLANE_DELETE_FAILURE: |
4c550bcf | 793 | zsend_ipset_entry_notify_owner(ipset, |
34d9d5be | 794 | ZAPI_IPSET_ENTRY_FAIL_REMOVE); |
425bdd6b | 795 | break; |
ea1c14f6 MS |
796 | case ZEBRA_DPLANE_STATUS_NONE: |
797 | break; | |
425bdd6b PG |
798 | } |
799 | } | |
800 | ||
7abd6c4f PG |
801 | /* |
802 | * Handle success or failure of ipset (un)install in the kernel. | |
803 | */ | |
804 | void kernel_pbr_iptable_add_del_status(struct zebra_pbr_iptable *iptable, | |
ea1c14f6 | 805 | enum zebra_dplane_status res) |
7abd6c4f PG |
806 | { |
807 | switch (res) { | |
ea1c14f6 | 808 | case ZEBRA_DPLANE_INSTALL_SUCCESS: |
7abd6c4f PG |
809 | zsend_iptable_notify_owner(iptable, ZAPI_IPTABLE_INSTALLED); |
810 | break; | |
ea1c14f6 | 811 | case ZEBRA_DPLANE_INSTALL_FAILURE: |
7abd6c4f PG |
812 | zsend_iptable_notify_owner(iptable, ZAPI_IPTABLE_FAIL_INSTALL); |
813 | break; | |
ea1c14f6 | 814 | case ZEBRA_DPLANE_DELETE_SUCCESS: |
4c550bcf PG |
815 | zsend_iptable_notify_owner(iptable, |
816 | ZAPI_IPTABLE_REMOVED); | |
817 | break; | |
ea1c14f6 | 818 | case ZEBRA_DPLANE_DELETE_FAILURE: |
4c550bcf | 819 | zsend_iptable_notify_owner(iptable, |
34d9d5be | 820 | ZAPI_IPTABLE_FAIL_REMOVE); |
7abd6c4f | 821 | break; |
ea1c14f6 MS |
822 | case ZEBRA_DPLANE_STATUS_NONE: |
823 | break; | |
7abd6c4f PG |
824 | } |
825 | } | |
826 | ||
942bf97b | 827 | /* |
828 | * Handle rule delete notification from kernel. | |
829 | */ | |
a0321978 | 830 | int kernel_pbr_rule_del(struct zebra_pbr_rule *rule) |
942bf97b | 831 | { |
832 | return 0; | |
833 | } | |
586f4ccf PG |
834 | |
835 | struct zebra_pbr_ipset_entry_unique_display { | |
836 | struct zebra_pbr_ipset *zpi; | |
837 | struct vty *vty; | |
73a829f7 | 838 | struct zebra_ns *zns; |
586f4ccf PG |
839 | }; |
840 | ||
841 | struct zebra_pbr_env_display { | |
842 | struct zebra_ns *zns; | |
843 | struct vty *vty; | |
7929821a | 844 | char *name; |
586f4ccf PG |
845 | }; |
846 | ||
847 | static const char *zebra_pbr_prefix2str(union prefixconstptr pu, | |
848 | char *str, int size) | |
849 | { | |
850 | const struct prefix *p = pu.p; | |
851 | char buf[PREFIX2STR_BUFFER]; | |
852 | ||
853 | if (p->family == AF_INET && p->prefixlen == IPV4_MAX_PREFIXLEN) { | |
854 | snprintf(str, size, "%s", inet_ntop(p->family, &p->u.prefix, | |
855 | buf, PREFIX2STR_BUFFER)); | |
856 | return str; | |
857 | } | |
858 | return prefix2str(pu, str, size); | |
859 | } | |
860 | ||
be729dd7 PG |
861 | static void zebra_pbr_display_icmp(struct vty *vty, |
862 | struct zebra_pbr_ipset_entry *zpie) | |
863 | { | |
864 | char decoded_str[20]; | |
865 | uint16_t port; | |
866 | ||
867 | /* range icmp type */ | |
868 | if (zpie->src_port_max || zpie->dst_port_max) { | |
869 | vty_out(vty, ":icmp:[type <%d:%d>;code <%d:%d>", | |
870 | zpie->src_port_min, zpie->src_port_max, | |
871 | zpie->dst_port_min, zpie->dst_port_max); | |
872 | } else { | |
873 | port = ((zpie->src_port_min << 8) & 0xff00) + | |
874 | (zpie->dst_port_min & 0xff); | |
875 | memset(decoded_str, 0, sizeof(decoded_str)); | |
876 | sprintf(decoded_str, "%d/%d", | |
877 | zpie->src_port_min, | |
878 | zpie->dst_port_min); | |
879 | vty_out(vty, ":icmp:%s", | |
880 | lookup_msg(icmp_typecode_str, | |
881 | port, decoded_str)); | |
882 | } | |
883 | } | |
884 | ||
25d760c5 PG |
885 | static void zebra_pbr_display_port(struct vty *vty, uint32_t filter_bm, |
886 | uint16_t port_min, uint16_t port_max, | |
887 | uint8_t proto) | |
888 | { | |
889 | if (!(filter_bm & PBR_FILTER_PROTO)) { | |
890 | if (port_max) | |
891 | vty_out(vty, ":udp/tcp:%d-%d", | |
892 | port_min, port_max); | |
893 | else | |
894 | vty_out(vty, ":udp/tcp:%d", | |
895 | port_min); | |
896 | } else { | |
897 | if (port_max) | |
898 | vty_out(vty, ":proto %d:%d-%d", | |
899 | proto, port_min, port_max); | |
900 | else | |
901 | vty_out(vty, ":proto %d:%d", | |
902 | proto, port_min); | |
903 | } | |
904 | } | |
905 | ||
586f4ccf PG |
906 | static int zebra_pbr_show_ipset_entry_walkcb(struct hash_backet *backet, |
907 | void *arg) | |
908 | { | |
909 | struct zebra_pbr_ipset_entry_unique_display *unique = | |
910 | (struct zebra_pbr_ipset_entry_unique_display *)arg; | |
911 | struct zebra_pbr_ipset *zpi = unique->zpi; | |
912 | struct vty *vty = unique->vty; | |
913 | struct zebra_pbr_ipset_entry *zpie = | |
914 | (struct zebra_pbr_ipset_entry *)backet->data; | |
73a829f7 PG |
915 | uint64_t pkts = 0, bytes = 0; |
916 | struct zebra_ns *zns = unique->zns; | |
917 | int ret = 0; | |
586f4ccf PG |
918 | |
919 | if (zpie->backpointer != zpi) | |
920 | return HASHWALK_CONTINUE; | |
921 | ||
25d760c5 PG |
922 | if ((zpi->type == IPSET_NET_NET) || |
923 | (zpi->type == IPSET_NET_PORT_NET)) { | |
586f4ccf PG |
924 | char buf[PREFIX_STRLEN]; |
925 | ||
926 | zebra_pbr_prefix2str(&(zpie->src), buf, sizeof(buf)); | |
927 | vty_out(vty, "\tfrom %s", buf); | |
be729dd7 PG |
928 | if (zpie->filter_bm & PBR_FILTER_SRC_PORT && |
929 | zpie->proto != IPPROTO_ICMP) | |
25d760c5 PG |
930 | zebra_pbr_display_port(vty, zpie->filter_bm, |
931 | zpie->src_port_min, | |
932 | zpie->src_port_max, | |
933 | zpie->proto); | |
586f4ccf PG |
934 | vty_out(vty, " to "); |
935 | zebra_pbr_prefix2str(&(zpie->dst), buf, sizeof(buf)); | |
936 | vty_out(vty, "%s", buf); | |
be729dd7 PG |
937 | if (zpie->filter_bm & PBR_FILTER_DST_PORT && |
938 | zpie->proto != IPPROTO_ICMP) | |
25d760c5 PG |
939 | zebra_pbr_display_port(vty, zpie->filter_bm, |
940 | zpie->dst_port_min, | |
941 | zpie->dst_port_max, | |
942 | zpie->proto); | |
be729dd7 PG |
943 | if (zpie->proto == IPPROTO_ICMP) |
944 | zebra_pbr_display_icmp(vty, zpie); | |
25d760c5 PG |
945 | } else if ((zpi->type == IPSET_NET) || |
946 | (zpi->type == IPSET_NET_PORT)) { | |
586f4ccf PG |
947 | char buf[PREFIX_STRLEN]; |
948 | ||
949 | if (zpie->filter_bm & PBR_FILTER_SRC_IP) { | |
950 | zebra_pbr_prefix2str(&(zpie->src), buf, sizeof(buf)); | |
951 | vty_out(vty, "\tfrom %s", buf); | |
952 | } | |
be729dd7 PG |
953 | if (zpie->filter_bm & PBR_FILTER_SRC_PORT && |
954 | zpie->proto != IPPROTO_ICMP) | |
25d760c5 PG |
955 | zebra_pbr_display_port(vty, zpie->filter_bm, |
956 | zpie->src_port_min, | |
957 | zpie->src_port_max, | |
958 | zpie->proto); | |
586f4ccf PG |
959 | if (zpie->filter_bm & PBR_FILTER_DST_IP) { |
960 | zebra_pbr_prefix2str(&(zpie->dst), buf, sizeof(buf)); | |
961 | vty_out(vty, "\tto %s", buf); | |
962 | } | |
be729dd7 PG |
963 | if (zpie->filter_bm & PBR_FILTER_DST_PORT && |
964 | zpie->proto != IPPROTO_ICMP) | |
25d760c5 PG |
965 | zebra_pbr_display_port(vty, zpie->filter_bm, |
966 | zpie->dst_port_min, | |
967 | zpie->dst_port_max, | |
968 | zpie->proto); | |
be729dd7 PG |
969 | if (zpie->proto == IPPROTO_ICMP) |
970 | zebra_pbr_display_icmp(vty, zpie); | |
586f4ccf PG |
971 | } |
972 | vty_out(vty, " (%u)\n", zpie->unique); | |
973 | ||
73a829f7 PG |
974 | ret = hook_call(zebra_pbr_ipset_entry_wrap_script_get_stat, |
975 | zns, zpie, &pkts, &bytes); | |
976 | if (ret && pkts > 0) | |
977 | vty_out(vty, "\t pkts %" PRIu64 ", bytes %" PRIu64"\n", | |
978 | pkts, bytes); | |
586f4ccf PG |
979 | return HASHWALK_CONTINUE; |
980 | } | |
981 | ||
982 | static int zebra_pbr_show_ipset_walkcb(struct hash_backet *backet, void *arg) | |
983 | { | |
984 | struct zebra_pbr_env_display *uniqueipset = | |
985 | (struct zebra_pbr_env_display *)arg; | |
986 | struct zebra_pbr_ipset *zpi = (struct zebra_pbr_ipset *)backet->data; | |
987 | struct zebra_pbr_ipset_entry_unique_display unique; | |
988 | struct vty *vty = uniqueipset->vty; | |
989 | struct zebra_ns *zns = uniqueipset->zns; | |
990 | ||
991 | vty_out(vty, "IPset %s type %s\n", zpi->ipset_name, | |
992 | zebra_pbr_ipset_type2str(zpi->type)); | |
993 | unique.vty = vty; | |
994 | unique.zpi = zpi; | |
73a829f7 | 995 | unique.zns = zns; |
586f4ccf PG |
996 | hash_walk(zns->ipset_entry_hash, zebra_pbr_show_ipset_entry_walkcb, |
997 | &unique); | |
998 | vty_out(vty, "\n"); | |
999 | return HASHWALK_CONTINUE; | |
1000 | } | |
1001 | ||
dc993e76 PG |
1002 | size_t zebra_pbr_tcpflags_snprintf(char *buffer, size_t len, |
1003 | uint16_t tcp_val) | |
1004 | { | |
1005 | size_t len_written = 0; | |
1006 | static struct message nt = {0}; | |
1007 | const struct message *pnt; | |
1008 | int incr = 0; | |
1009 | ||
1010 | for (pnt = tcp_value_str; | |
1011 | memcmp(pnt, &nt, sizeof(struct message)); pnt++) | |
1012 | if (pnt->key & tcp_val) { | |
1013 | len_written += snprintf(buffer + len_written, | |
1014 | len - len_written, | |
1015 | "%s%s", incr ? | |
1016 | ",":"", pnt->str); | |
1017 | incr++; | |
1018 | } | |
1019 | return len_written; | |
1020 | } | |
1021 | ||
586f4ccf PG |
1022 | /* |
1023 | */ | |
1024 | void zebra_pbr_show_ipset_list(struct vty *vty, char *ipsetname) | |
1025 | { | |
1026 | struct zebra_pbr_ipset *zpi; | |
1027 | struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT); | |
1028 | struct zebra_pbr_ipset_entry_unique_display unique; | |
1029 | struct zebra_pbr_env_display uniqueipset; | |
1030 | ||
1031 | if (ipsetname) { | |
1032 | zpi = zebra_pbr_lookup_ipset_pername(zns, ipsetname); | |
1033 | if (!zpi) { | |
1034 | vty_out(vty, "No IPset %s found\n", ipsetname); | |
1035 | return; | |
1036 | } | |
1037 | vty_out(vty, "IPset %s type %s\n", ipsetname, | |
1038 | zebra_pbr_ipset_type2str(zpi->type)); | |
1039 | ||
1040 | unique.vty = vty; | |
1041 | unique.zpi = zpi; | |
73a829f7 | 1042 | unique.zns = zns; |
586f4ccf PG |
1043 | hash_walk(zns->ipset_entry_hash, |
1044 | zebra_pbr_show_ipset_entry_walkcb, | |
1045 | &unique); | |
1046 | return; | |
1047 | } | |
1048 | uniqueipset.zns = zns; | |
1049 | uniqueipset.vty = vty; | |
7929821a | 1050 | uniqueipset.name = NULL; |
586f4ccf PG |
1051 | hash_walk(zns->ipset_hash, zebra_pbr_show_ipset_walkcb, |
1052 | &uniqueipset); | |
1053 | } | |
1054 | ||
1055 | struct pbr_rule_fwmark_lookup { | |
1056 | struct zebra_pbr_rule *ptr; | |
1057 | uint32_t fwmark; | |
1058 | }; | |
1059 | ||
1060 | static int zebra_pbr_rule_lookup_fwmark_walkcb(struct hash_backet *backet, | |
1061 | void *arg) | |
1062 | { | |
1063 | struct pbr_rule_fwmark_lookup *iprule = | |
1064 | (struct pbr_rule_fwmark_lookup *)arg; | |
1065 | struct zebra_pbr_rule *zpr = (struct zebra_pbr_rule *)backet->data; | |
1066 | ||
1067 | if (iprule->fwmark == zpr->rule.filter.fwmark) { | |
1068 | iprule->ptr = zpr; | |
1069 | return HASHWALK_ABORT; | |
1070 | } | |
1071 | return HASHWALK_CONTINUE; | |
1072 | } | |
1073 | ||
7929821a PG |
1074 | static void zebra_pbr_show_iptable_unit(struct zebra_pbr_iptable *iptable, |
1075 | struct vty *vty, | |
1076 | struct zebra_ns *zns) | |
586f4ccf | 1077 | { |
73a829f7 PG |
1078 | int ret; |
1079 | uint64_t pkts = 0, bytes = 0; | |
586f4ccf PG |
1080 | |
1081 | vty_out(vty, "IPtable %s action %s (%u)\n", iptable->ipset_name, | |
1082 | iptable->action == ZEBRA_IPTABLES_DROP ? "drop" : "redirect", | |
1083 | iptable->unique); | |
0b328d3f PG |
1084 | if (iptable->type == IPSET_NET_PORT || |
1085 | iptable->type == IPSET_NET_PORT_NET) { | |
1086 | if (!(iptable->filter_bm & MATCH_ICMP_SET)) { | |
1087 | if (iptable->filter_bm & PBR_FILTER_DST_PORT) | |
1088 | vty_out(vty, "\t lookup dst port\n"); | |
1089 | else if (iptable->filter_bm & PBR_FILTER_SRC_PORT) | |
1090 | vty_out(vty, "\t lookup src port\n"); | |
1091 | } | |
1092 | } | |
e7f7dad4 PG |
1093 | if (iptable->pkt_len_min || iptable->pkt_len_max) { |
1094 | if (!iptable->pkt_len_max) | |
1095 | vty_out(vty, "\t pkt len %u\n", | |
1096 | iptable->pkt_len_min); | |
1097 | else | |
1098 | vty_out(vty, "\t pkt len [%u;%u]\n", | |
1099 | iptable->pkt_len_min, | |
1100 | iptable->pkt_len_max); | |
1101 | } | |
dc993e76 PG |
1102 | if (iptable->tcp_flags || iptable->tcp_mask_flags) { |
1103 | char tcp_flag_str[64]; | |
1104 | char tcp_flag_mask_str[64]; | |
1105 | ||
1106 | zebra_pbr_tcpflags_snprintf(tcp_flag_str, | |
1107 | sizeof(tcp_flag_str), | |
1108 | iptable->tcp_flags); | |
1109 | zebra_pbr_tcpflags_snprintf(tcp_flag_mask_str, | |
1110 | sizeof(tcp_flag_mask_str), | |
1111 | iptable->tcp_mask_flags); | |
1112 | vty_out(vty, "\t tcpflags [%s/%s]\n", | |
1113 | tcp_flag_str, tcp_flag_mask_str); | |
1114 | } | |
69214c57 PG |
1115 | if (iptable->filter_bm & (MATCH_DSCP_SET | MATCH_DSCP_INVERSE_SET)) { |
1116 | vty_out(vty, "\t dscp %s %d\n", | |
1117 | iptable->filter_bm & MATCH_DSCP_INVERSE_SET ? | |
1118 | "not" : "", iptable->dscp_value); | |
1119 | } | |
5ac5b7cc PG |
1120 | if (iptable->fragment) { |
1121 | char val_str[10]; | |
1122 | ||
1123 | sprintf(val_str, "%d", iptable->fragment); | |
1124 | vty_out(vty, "\t fragment%s %s\n", | |
1125 | iptable->filter_bm & MATCH_FRAGMENT_INVERSE_SET ? | |
1126 | " not" : "", lookup_msg(fragment_value_str, | |
1127 | iptable->fragment, val_str)); | |
1128 | } | |
73a829f7 PG |
1129 | ret = hook_call(zebra_pbr_iptable_wrap_script_get_stat, |
1130 | zns, iptable, &pkts, &bytes); | |
1131 | if (ret && pkts > 0) | |
1132 | vty_out(vty, "\t pkts %" PRIu64 ", bytes %" PRIu64"\n", | |
1133 | pkts, bytes); | |
586f4ccf PG |
1134 | if (iptable->action != ZEBRA_IPTABLES_DROP) { |
1135 | struct pbr_rule_fwmark_lookup prfl; | |
1136 | ||
1137 | prfl.fwmark = iptable->fwmark; | |
1138 | prfl.ptr = NULL; | |
1139 | hash_walk(zns->rules_hash, | |
1140 | &zebra_pbr_rule_lookup_fwmark_walkcb, &prfl); | |
1141 | if (prfl.ptr) { | |
1142 | struct zebra_pbr_rule *zpr = prfl.ptr; | |
1143 | ||
1144 | vty_out(vty, "\t table %u, fwmark %u\n", | |
1145 | zpr->rule.action.table, | |
1146 | prfl.fwmark); | |
1147 | } | |
1148 | } | |
7929821a PG |
1149 | } |
1150 | ||
1151 | static int zebra_pbr_show_iptable_walkcb(struct hash_backet *backet, void *arg) | |
1152 | { | |
1153 | struct zebra_pbr_iptable *iptable = | |
1154 | (struct zebra_pbr_iptable *)backet->data; | |
1155 | struct zebra_pbr_env_display *env = (struct zebra_pbr_env_display *)arg; | |
1156 | struct vty *vty = env->vty; | |
1157 | struct zebra_ns *zns = env->zns; | |
1158 | char *iptable_name = env->name; | |
1159 | ||
1160 | if (!iptable_name) | |
1161 | zebra_pbr_show_iptable_unit(iptable, vty, zns); | |
1162 | else if (!strncmp(iptable_name, | |
1163 | iptable->ipset_name, | |
1164 | ZEBRA_IPSET_NAME_SIZE)) | |
1165 | zebra_pbr_show_iptable_unit(iptable, vty, zns); | |
586f4ccf PG |
1166 | return HASHWALK_CONTINUE; |
1167 | } | |
1168 | ||
7929821a | 1169 | void zebra_pbr_show_iptable(struct vty *vty, char *iptable_name) |
586f4ccf PG |
1170 | { |
1171 | struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT); | |
1172 | struct zebra_pbr_env_display env; | |
1173 | ||
1174 | env.vty = vty; | |
1175 | env.zns = zns; | |
7929821a | 1176 | env.name = iptable_name; |
586f4ccf PG |
1177 | hash_walk(zns->iptable_hash, zebra_pbr_show_iptable_walkcb, |
1178 | &env); | |
1179 | } | |
f80ec7e3 PG |
1180 | |
1181 | void zebra_pbr_iptable_update_interfacelist(struct stream *s, | |
1182 | struct zebra_pbr_iptable *zpi) | |
1183 | { | |
1184 | uint32_t i = 0, index; | |
1185 | struct interface *ifp; | |
1186 | char *name; | |
1187 | ||
1188 | for (i = 0; i < zpi->nb_interface; i++) { | |
1189 | STREAM_GETL(s, index); | |
1190 | ifp = if_lookup_by_index(index, zpi->vrf_id); | |
1191 | if (!ifp) | |
1192 | continue; | |
1193 | name = XSTRDUP(MTYPE_PBR_IPTABLE_IFNAME, ifp->name); | |
1194 | listnode_add(zpi->interface_name_list, name); | |
1195 | } | |
1196 | stream_failure: | |
1197 | return; | |
1198 | } |