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f9cb3a2f | 1 | /* $USAGI: $ */ |
2 | ||
3 | /* | |
4 | * Copyright (C)2005 USAGI/WIDE Project | |
ae665a52 | 5 | * |
f9cb3a2f | 6 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
ae665a52 | 10 | * |
f9cb3a2f | 11 | * This program is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
ae665a52 | 15 | * |
f9cb3a2f | 16 | * You should have received a copy of the GNU General Public License |
4d98ab00 | 17 | * along with this program; if not, see <http://www.gnu.org/licenses>. |
f9cb3a2f | 18 | */ |
19 | /* | |
20 | * based on ipmonitor.c | |
21 | */ | |
22 | /* | |
23 | * Authors: | |
24 | * Masahide NAKAMURA @USAGI | |
25 | */ | |
26 | ||
27 | #include <stdio.h> | |
28 | #include <stdlib.h> | |
29 | #include <string.h> | |
93390779 | 30 | #include <netinet/in.h> |
93390779 | 31 | |
f9cb3a2f | 32 | #include "utils.h" |
33 | #include "xfrm.h" | |
34 | #include "ip_common.h" | |
35 | ||
36 | static void usage(void) __attribute__((noreturn)); | |
fa92d8cb | 37 | static int listen_all_nsid; |
a6af9f2e | 38 | static bool nokeys; |
f9cb3a2f | 39 | |
40 | static void usage(void) | |
41 | { | |
8589eb4e MC |
42 | fprintf(stderr, |
43 | "Usage: ip xfrm monitor [ nokeys ] [ all-nsid ] [ all | OBJECTS | help ]\n" | |
44 | "OBJECTS := { acquire | expire | SA | aevent | policy | report }\n"); | |
f9cb3a2f | 45 | exit(-1); |
46 | } | |
47 | ||
cd554f2c | 48 | static int xfrm_acquire_print(struct nlmsghdr *n, void *arg) |
f9cb3a2f | 49 | { |
56f5daac | 50 | FILE *fp = (FILE *)arg; |
f9cb3a2f | 51 | struct xfrm_user_acquire *xacq = NLMSG_DATA(n); |
52 | int len = n->nlmsg_len; | |
56f5daac | 53 | struct rtattr *tb[XFRMA_MAX+1]; |
f9cb3a2f | 54 | __u16 family; |
55 | ||
f9cb3a2f | 56 | len -= NLMSG_LENGTH(sizeof(*xacq)); |
57 | if (len < 0) { | |
58 | fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); | |
59 | return -1; | |
60 | } | |
61 | ||
62 | parse_rtattr(tb, XFRMA_MAX, XFRMACQ_RTA(xacq), len); | |
90f93024 | 63 | |
f9cb3a2f | 64 | family = xacq->sel.family; |
65 | if (family == AF_UNSPEC) | |
66 | family = xacq->policy.sel.family; | |
67 | if (family == AF_UNSPEC) | |
68 | family = preferred_family; | |
69 | ||
70 | fprintf(fp, "acquire "); | |
71 | ||
72 | fprintf(fp, "proto %s ", strxf_xfrmproto(xacq->id.proto)); | |
73 | if (show_stats > 0 || xacq->id.spi) { | |
74 | __u32 spi = ntohl(xacq->id.spi); | |
56f5daac | 75 | |
f9cb3a2f | 76 | fprintf(fp, "spi 0x%08x", spi); |
77 | if (show_stats > 0) | |
78 | fprintf(fp, "(%u)", spi); | |
79 | fprintf(fp, " "); | |
80 | } | |
81 | fprintf(fp, "%s", _SL_); | |
82 | ||
83 | xfrm_selector_print(&xacq->sel, family, fp, " sel "); | |
84 | ||
85 | xfrm_policy_info_print(&xacq->policy, tb, fp, " ", " policy "); | |
86 | ||
87 | if (show_stats > 0) | |
88 | fprintf(fp, " seq 0x%08u ", xacq->seq); | |
89 | if (show_stats > 0) { | |
90 | fprintf(fp, "%s-mask %s ", | |
91 | strxf_algotype(XFRMA_ALG_CRYPT), | |
92 | strxf_mask32(xacq->ealgos)); | |
93 | fprintf(fp, "%s-mask %s ", | |
94 | strxf_algotype(XFRMA_ALG_AUTH), | |
95 | strxf_mask32(xacq->aalgos)); | |
96 | fprintf(fp, "%s-mask %s", | |
97 | strxf_algotype(XFRMA_ALG_COMP), | |
98 | strxf_mask32(xacq->calgos)); | |
99 | } | |
100 | fprintf(fp, "%s", _SL_); | |
101 | ||
102 | if (oneline) | |
103 | fprintf(fp, "\n"); | |
669ae748 | 104 | fflush(fp); |
f9cb3a2f | 105 | |
106 | return 0; | |
107 | } | |
108 | ||
cd554f2c | 109 | static int xfrm_state_flush_print(struct nlmsghdr *n, void *arg) |
efe69c1b | 110 | { |
56f5daac | 111 | FILE *fp = (FILE *)arg; |
efe69c1b MN |
112 | struct xfrm_usersa_flush *xsf = NLMSG_DATA(n); |
113 | int len = n->nlmsg_len; | |
114 | const char *str; | |
115 | ||
116 | len -= NLMSG_SPACE(sizeof(*xsf)); | |
117 | if (len < 0) { | |
118 | fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); | |
119 | return -1; | |
120 | } | |
121 | ||
122 | fprintf(fp, "Flushed state "); | |
123 | ||
124 | str = strxf_xfrmproto(xsf->proto); | |
125 | if (str) | |
126 | fprintf(fp, "proto %s", str); | |
127 | else | |
128 | fprintf(fp, "proto %u", xsf->proto); | |
129 | fprintf(fp, "%s", _SL_); | |
130 | ||
131 | if (oneline) | |
132 | fprintf(fp, "\n"); | |
133 | fflush(fp); | |
134 | ||
135 | return 0; | |
136 | } | |
137 | ||
cd554f2c | 138 | static int xfrm_policy_flush_print(struct nlmsghdr *n, void *arg) |
efe69c1b | 139 | { |
56f5daac SH |
140 | struct rtattr *tb[XFRMA_MAX+1]; |
141 | FILE *fp = (FILE *)arg; | |
efe69c1b MN |
142 | int len = n->nlmsg_len; |
143 | ||
144 | len -= NLMSG_SPACE(0); | |
145 | if (len < 0) { | |
146 | fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); | |
147 | return -1; | |
148 | } | |
149 | ||
150 | fprintf(fp, "Flushed policy "); | |
151 | ||
152 | parse_rtattr(tb, XFRMA_MAX, NLMSG_DATA(n), len); | |
153 | ||
154 | if (tb[XFRMA_POLICY_TYPE]) { | |
155 | struct xfrm_userpolicy_type *upt; | |
156 | ||
157 | fprintf(fp, "ptype "); | |
158 | ||
159 | if (RTA_PAYLOAD(tb[XFRMA_POLICY_TYPE]) < sizeof(*upt)) | |
160 | fprintf(fp, "(ERROR truncated)"); | |
161 | ||
9f1370c0 | 162 | upt = RTA_DATA(tb[XFRMA_POLICY_TYPE]); |
efe69c1b MN |
163 | fprintf(fp, "%s ", strxf_ptype(upt->type)); |
164 | } | |
165 | ||
166 | fprintf(fp, "%s", _SL_); | |
167 | ||
168 | if (oneline) | |
169 | fprintf(fp, "\n"); | |
170 | fflush(fp); | |
171 | ||
172 | return 0; | |
173 | } | |
174 | ||
cd554f2c | 175 | static int xfrm_report_print(struct nlmsghdr *n, void *arg) |
c54f31ee | 176 | { |
56f5daac | 177 | FILE *fp = (FILE *)arg; |
c54f31ee MN |
178 | struct xfrm_user_report *xrep = NLMSG_DATA(n); |
179 | int len = n->nlmsg_len; | |
56f5daac | 180 | struct rtattr *tb[XFRMA_MAX+1]; |
c54f31ee MN |
181 | __u16 family; |
182 | ||
c54f31ee MN |
183 | len -= NLMSG_LENGTH(sizeof(*xrep)); |
184 | if (len < 0) { | |
185 | fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); | |
186 | return -1; | |
187 | } | |
188 | ||
189 | family = xrep->sel.family; | |
190 | if (family == AF_UNSPEC) | |
191 | family = preferred_family; | |
192 | ||
193 | fprintf(fp, "report "); | |
194 | ||
195 | fprintf(fp, "proto %s ", strxf_xfrmproto(xrep->proto)); | |
196 | fprintf(fp, "%s", _SL_); | |
197 | ||
198 | xfrm_selector_print(&xrep->sel, family, fp, " sel "); | |
199 | ||
200 | parse_rtattr(tb, XFRMA_MAX, XFRMREP_RTA(xrep), len); | |
201 | ||
a6af9f2e | 202 | xfrm_xfrma_print(tb, family, fp, " ", nokeys); |
c54f31ee MN |
203 | |
204 | if (oneline) | |
205 | fprintf(fp, "\n"); | |
206 | ||
207 | return 0; | |
208 | } | |
209 | ||
d1f28cf1 | 210 | static void xfrm_ae_flags_print(__u32 flags, void *arg) |
c9fd974b | 211 | { |
56f5daac SH |
212 | FILE *fp = (FILE *)arg; |
213 | ||
c9fd974b | 214 | fprintf(fp, " (0x%x) ", flags); |
215 | if (!flags) | |
216 | return; | |
217 | if (flags & XFRM_AE_CR) | |
218 | fprintf(fp, " replay update "); | |
219 | if (flags & XFRM_AE_CE) | |
220 | fprintf(fp, " timer expired "); | |
221 | if (flags & XFRM_AE_CU) | |
222 | fprintf(fp, " policy updated "); | |
223 | ||
224 | } | |
225 | ||
598a42c0 FW |
226 | static void xfrm_usersa_print(const struct xfrm_usersa_id *sa_id, __u32 reqid, FILE *fp) |
227 | { | |
656111b2 | 228 | fprintf(fp, "dst %s ", |
2e96d2cc | 229 | rt_addr_n2a(sa_id->family, sizeof(sa_id->daddr), &sa_id->daddr)); |
598a42c0 FW |
230 | |
231 | fprintf(fp, " reqid 0x%x", reqid); | |
232 | ||
233 | fprintf(fp, " protocol %s ", strxf_proto(sa_id->proto)); | |
234 | fprintf(fp, " SPI 0x%x", ntohl(sa_id->spi)); | |
235 | } | |
236 | ||
cd554f2c | 237 | static int xfrm_ae_print(struct nlmsghdr *n, void *arg) |
c9fd974b | 238 | { |
56f5daac | 239 | FILE *fp = (FILE *)arg; |
c9fd974b | 240 | struct xfrm_aevent_id *id = NLMSG_DATA(n); |
c9fd974b | 241 | |
242 | fprintf(fp, "Async event "); | |
243 | xfrm_ae_flags_print(id->flags, arg); | |
56f5daac | 244 | fprintf(fp, "\n\t"); |
26dcdf3a | 245 | fprintf(fp, "src %s ", rt_addr_n2a(id->sa_id.family, |
2e96d2cc | 246 | sizeof(id->saddr), &id->saddr)); |
598a42c0 FW |
247 | |
248 | xfrm_usersa_print(&id->sa_id, id->reqid, fp); | |
c9fd974b | 249 | |
250 | fprintf(fp, "\n"); | |
251 | fflush(fp); | |
252 | ||
253 | return 0; | |
254 | } | |
255 | ||
656111b2 | 256 | static void xfrm_print_addr(FILE *fp, int family, xfrm_address_t *a) |
598a42c0 | 257 | { |
2e96d2cc | 258 | fprintf(fp, "%s", rt_addr_n2a(family, sizeof(*a), a)); |
598a42c0 FW |
259 | } |
260 | ||
cd554f2c | 261 | static int xfrm_mapping_print(struct nlmsghdr *n, void *arg) |
598a42c0 | 262 | { |
56f5daac | 263 | FILE *fp = (FILE *)arg; |
598a42c0 FW |
264 | struct xfrm_user_mapping *map = NLMSG_DATA(n); |
265 | ||
266 | fprintf(fp, "Mapping change "); | |
656111b2 | 267 | xfrm_print_addr(fp, map->id.family, &map->old_saddr); |
598a42c0 FW |
268 | |
269 | fprintf(fp, ":%d -> ", ntohs(map->old_sport)); | |
656111b2 | 270 | xfrm_print_addr(fp, map->id.family, &map->new_saddr); |
598a42c0 FW |
271 | fprintf(fp, ":%d\n\t", ntohs(map->new_sport)); |
272 | ||
273 | xfrm_usersa_print(&map->id, map->reqid, fp); | |
274 | ||
275 | fprintf(fp, "\n"); | |
276 | fflush(fp); | |
277 | return 0; | |
278 | } | |
279 | ||
cd554f2c | 280 | static int xfrm_accept_msg(struct rtnl_ctrl_data *ctrl, |
f9cb3a2f | 281 | struct nlmsghdr *n, void *arg) |
282 | { | |
56f5daac | 283 | FILE *fp = (FILE *)arg; |
f9cb3a2f | 284 | |
90f93024 SH |
285 | if (timestamp) |
286 | print_timestamp(fp); | |
287 | ||
b6ec53e3 ND |
288 | if (listen_all_nsid) { |
289 | if (ctrl == NULL || ctrl->nsid < 0) | |
290 | fprintf(fp, "[nsid current]"); | |
291 | else | |
292 | fprintf(fp, "[nsid %d]", ctrl->nsid); | |
293 | } | |
294 | ||
efe69c1b MN |
295 | switch (n->nlmsg_type) { |
296 | case XFRM_MSG_NEWSA: | |
297 | case XFRM_MSG_DELSA: | |
298 | case XFRM_MSG_UPDSA: | |
299 | case XFRM_MSG_EXPIRE: | |
cd554f2c | 300 | xfrm_state_print(n, arg); |
c595c790 | 301 | return 0; |
efe69c1b MN |
302 | case XFRM_MSG_NEWPOLICY: |
303 | case XFRM_MSG_DELPOLICY: | |
304 | case XFRM_MSG_UPDPOLICY: | |
305 | case XFRM_MSG_POLEXPIRE: | |
cd554f2c | 306 | xfrm_policy_print(n, arg); |
c595c790 | 307 | return 0; |
efe69c1b | 308 | case XFRM_MSG_ACQUIRE: |
cd554f2c | 309 | xfrm_acquire_print(n, arg); |
f9cb3a2f | 310 | return 0; |
efe69c1b | 311 | case XFRM_MSG_FLUSHSA: |
cd554f2c | 312 | xfrm_state_flush_print(n, arg); |
f9cb3a2f | 313 | return 0; |
efe69c1b | 314 | case XFRM_MSG_FLUSHPOLICY: |
cd554f2c | 315 | xfrm_policy_flush_print(n, arg); |
f9cb3a2f | 316 | return 0; |
efe69c1b | 317 | case XFRM_MSG_REPORT: |
cd554f2c | 318 | xfrm_report_print(n, arg); |
c54f31ee | 319 | return 0; |
efe69c1b | 320 | case XFRM_MSG_NEWAE: |
cd554f2c | 321 | xfrm_ae_print(n, arg); |
c9fd974b | 322 | return 0; |
598a42c0 | 323 | case XFRM_MSG_MAPPING: |
cd554f2c | 324 | xfrm_mapping_print(n, arg); |
598a42c0 | 325 | return 0; |
efe69c1b MN |
326 | default: |
327 | break; | |
c9fd974b | 328 | } |
efe69c1b | 329 | |
f9cb3a2f | 330 | if (n->nlmsg_type != NLMSG_ERROR && n->nlmsg_type != NLMSG_NOOP && |
331 | n->nlmsg_type != NLMSG_DONE) { | |
c595c790 | 332 | fprintf(fp, "Unknown message: %08d 0x%08x 0x%08x\n", |
f9cb3a2f | 333 | n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags); |
334 | } | |
335 | return 0; | |
336 | } | |
337 | ||
77219712 SH |
338 | extern struct rtnl_handle rth; |
339 | ||
f9cb3a2f | 340 | int do_xfrm_monitor(int argc, char **argv) |
341 | { | |
f9cb3a2f | 342 | char *file = NULL; |
56f5daac SH |
343 | unsigned int groups = ~((unsigned)0); /* XXX */ |
344 | int lacquire = 0; | |
345 | int lexpire = 0; | |
346 | int laevent = 0; | |
347 | int lpolicy = 0; | |
348 | int lsa = 0; | |
349 | int lreport = 0; | |
f9cb3a2f | 350 | |
77219712 SH |
351 | rtnl_close(&rth); |
352 | ||
f9cb3a2f | 353 | while (argc > 0) { |
354 | if (matches(*argv, "file") == 0) { | |
355 | NEXT_ARG(); | |
356 | file = *argv; | |
a6af9f2e BW |
357 | } else if (strcmp(*argv, "nokeys") == 0) { |
358 | nokeys = true; | |
b8e77990 NH |
359 | } else if (strcmp(*argv, "all") == 0) { |
360 | /* fall out */ | |
b6ec53e3 ND |
361 | } else if (matches(*argv, "all-nsid") == 0) { |
362 | listen_all_nsid = 1; | |
f9cb3a2f | 363 | } else if (matches(*argv, "acquire") == 0) { |
56f5daac | 364 | lacquire = 1; |
f9cb3a2f | 365 | groups = 0; |
366 | } else if (matches(*argv, "expire") == 0) { | |
56f5daac | 367 | lexpire = 1; |
f9cb3a2f | 368 | groups = 0; |
c595c790 | 369 | } else if (matches(*argv, "SA") == 0) { |
56f5daac | 370 | lsa = 1; |
c595c790 | 371 | groups = 0; |
c9fd974b | 372 | } else if (matches(*argv, "aevent") == 0) { |
56f5daac | 373 | laevent = 1; |
c9fd974b | 374 | groups = 0; |
c595c790 | 375 | } else if (matches(*argv, "policy") == 0) { |
56f5daac | 376 | lpolicy = 1; |
c595c790 | 377 | groups = 0; |
c54f31ee | 378 | } else if (matches(*argv, "report") == 0) { |
56f5daac | 379 | lreport = 1; |
c54f31ee | 380 | groups = 0; |
f9cb3a2f | 381 | } else if (matches(*argv, "help") == 0) { |
382 | usage(); | |
b8e77990 | 383 | } else { |
f9cb3a2f | 384 | fprintf(stderr, "Argument \"%s\" is unknown, try \"ip xfrm monitor help\".\n", *argv); |
385 | exit(-1); | |
386 | } | |
387 | argc--; argv++; | |
388 | } | |
389 | ||
390 | if (lacquire) | |
7b822512 | 391 | groups |= nl_mgrp(XFRMNLGRP_ACQUIRE); |
f9cb3a2f | 392 | if (lexpire) |
7b822512 | 393 | groups |= nl_mgrp(XFRMNLGRP_EXPIRE); |
c595c790 | 394 | if (lsa) |
7b822512 | 395 | groups |= nl_mgrp(XFRMNLGRP_SA); |
c595c790 | 396 | if (lpolicy) |
7b822512 | 397 | groups |= nl_mgrp(XFRMNLGRP_POLICY); |
c9fd974b | 398 | if (laevent) |
7b822512 | 399 | groups |= nl_mgrp(XFRMNLGRP_AEVENTS); |
c54f31ee | 400 | if (lreport) |
7b822512 | 401 | groups |= nl_mgrp(XFRMNLGRP_REPORT); |
f9cb3a2f | 402 | |
403 | if (file) { | |
404 | FILE *fp; | |
e49b51d6 SH |
405 | int err; |
406 | ||
f9cb3a2f | 407 | fp = fopen(file, "r"); |
408 | if (fp == NULL) { | |
409 | perror("Cannot fopen"); | |
410 | exit(-1); | |
411 | } | |
e49b51d6 SH |
412 | err = rtnl_from_file(fp, xfrm_accept_msg, stdout); |
413 | fclose(fp); | |
414 | return err; | |
f9cb3a2f | 415 | } |
416 | ||
c595c790 SH |
417 | if (rtnl_open_byproto(&rth, groups, NETLINK_XFRM) < 0) |
418 | exit(1); | |
b6ec53e3 ND |
419 | if (listen_all_nsid && rtnl_listen_all_nsid(&rth) < 0) |
420 | exit(1); | |
c595c790 | 421 | |
56f5daac | 422 | if (rtnl_listen(&rth, xfrm_accept_msg, (void *)stdout) < 0) |
f9cb3a2f | 423 | exit(2); |
424 | ||
351efcde | 425 | return 0; |
f9cb3a2f | 426 | } |