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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; |
f9cb3a2f | 38 | |
39 | static void usage(void) | |
40 | { | |
b6ec53e3 | 41 | fprintf(stderr, "Usage: ip xfrm monitor [all-nsid] [ all | OBJECTS | help ]\n"); |
c16298be | 42 | fprintf(stderr, "OBJECTS := { acquire | expire | SA | aevent | policy | report }\n"); |
f9cb3a2f | 43 | exit(-1); |
44 | } | |
45 | ||
cd554f2c | 46 | static int xfrm_acquire_print(struct nlmsghdr *n, void *arg) |
f9cb3a2f | 47 | { |
56f5daac | 48 | FILE *fp = (FILE *)arg; |
f9cb3a2f | 49 | struct xfrm_user_acquire *xacq = NLMSG_DATA(n); |
50 | int len = n->nlmsg_len; | |
56f5daac | 51 | struct rtattr *tb[XFRMA_MAX+1]; |
f9cb3a2f | 52 | __u16 family; |
53 | ||
f9cb3a2f | 54 | len -= NLMSG_LENGTH(sizeof(*xacq)); |
55 | if (len < 0) { | |
56 | fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); | |
57 | return -1; | |
58 | } | |
59 | ||
60 | parse_rtattr(tb, XFRMA_MAX, XFRMACQ_RTA(xacq), len); | |
90f93024 | 61 | |
f9cb3a2f | 62 | family = xacq->sel.family; |
63 | if (family == AF_UNSPEC) | |
64 | family = xacq->policy.sel.family; | |
65 | if (family == AF_UNSPEC) | |
66 | family = preferred_family; | |
67 | ||
68 | fprintf(fp, "acquire "); | |
69 | ||
70 | fprintf(fp, "proto %s ", strxf_xfrmproto(xacq->id.proto)); | |
71 | if (show_stats > 0 || xacq->id.spi) { | |
72 | __u32 spi = ntohl(xacq->id.spi); | |
56f5daac | 73 | |
f9cb3a2f | 74 | fprintf(fp, "spi 0x%08x", spi); |
75 | if (show_stats > 0) | |
76 | fprintf(fp, "(%u)", spi); | |
77 | fprintf(fp, " "); | |
78 | } | |
79 | fprintf(fp, "%s", _SL_); | |
80 | ||
81 | xfrm_selector_print(&xacq->sel, family, fp, " sel "); | |
82 | ||
83 | xfrm_policy_info_print(&xacq->policy, tb, fp, " ", " policy "); | |
84 | ||
85 | if (show_stats > 0) | |
86 | fprintf(fp, " seq 0x%08u ", xacq->seq); | |
87 | if (show_stats > 0) { | |
88 | fprintf(fp, "%s-mask %s ", | |
89 | strxf_algotype(XFRMA_ALG_CRYPT), | |
90 | strxf_mask32(xacq->ealgos)); | |
91 | fprintf(fp, "%s-mask %s ", | |
92 | strxf_algotype(XFRMA_ALG_AUTH), | |
93 | strxf_mask32(xacq->aalgos)); | |
94 | fprintf(fp, "%s-mask %s", | |
95 | strxf_algotype(XFRMA_ALG_COMP), | |
96 | strxf_mask32(xacq->calgos)); | |
97 | } | |
98 | fprintf(fp, "%s", _SL_); | |
99 | ||
100 | if (oneline) | |
101 | fprintf(fp, "\n"); | |
669ae748 | 102 | fflush(fp); |
f9cb3a2f | 103 | |
104 | return 0; | |
105 | } | |
106 | ||
cd554f2c | 107 | static int xfrm_state_flush_print(struct nlmsghdr *n, void *arg) |
efe69c1b | 108 | { |
56f5daac | 109 | FILE *fp = (FILE *)arg; |
efe69c1b MN |
110 | struct xfrm_usersa_flush *xsf = NLMSG_DATA(n); |
111 | int len = n->nlmsg_len; | |
112 | const char *str; | |
113 | ||
114 | len -= NLMSG_SPACE(sizeof(*xsf)); | |
115 | if (len < 0) { | |
116 | fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); | |
117 | return -1; | |
118 | } | |
119 | ||
120 | fprintf(fp, "Flushed state "); | |
121 | ||
122 | str = strxf_xfrmproto(xsf->proto); | |
123 | if (str) | |
124 | fprintf(fp, "proto %s", str); | |
125 | else | |
126 | fprintf(fp, "proto %u", xsf->proto); | |
127 | fprintf(fp, "%s", _SL_); | |
128 | ||
129 | if (oneline) | |
130 | fprintf(fp, "\n"); | |
131 | fflush(fp); | |
132 | ||
133 | return 0; | |
134 | } | |
135 | ||
cd554f2c | 136 | static int xfrm_policy_flush_print(struct nlmsghdr *n, void *arg) |
efe69c1b | 137 | { |
56f5daac SH |
138 | struct rtattr *tb[XFRMA_MAX+1]; |
139 | FILE *fp = (FILE *)arg; | |
efe69c1b MN |
140 | int len = n->nlmsg_len; |
141 | ||
142 | len -= NLMSG_SPACE(0); | |
143 | if (len < 0) { | |
144 | fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); | |
145 | return -1; | |
146 | } | |
147 | ||
148 | fprintf(fp, "Flushed policy "); | |
149 | ||
150 | parse_rtattr(tb, XFRMA_MAX, NLMSG_DATA(n), len); | |
151 | ||
152 | if (tb[XFRMA_POLICY_TYPE]) { | |
153 | struct xfrm_userpolicy_type *upt; | |
154 | ||
155 | fprintf(fp, "ptype "); | |
156 | ||
157 | if (RTA_PAYLOAD(tb[XFRMA_POLICY_TYPE]) < sizeof(*upt)) | |
158 | fprintf(fp, "(ERROR truncated)"); | |
159 | ||
9f1370c0 | 160 | upt = RTA_DATA(tb[XFRMA_POLICY_TYPE]); |
efe69c1b MN |
161 | fprintf(fp, "%s ", strxf_ptype(upt->type)); |
162 | } | |
163 | ||
164 | fprintf(fp, "%s", _SL_); | |
165 | ||
166 | if (oneline) | |
167 | fprintf(fp, "\n"); | |
168 | fflush(fp); | |
169 | ||
170 | return 0; | |
171 | } | |
172 | ||
cd554f2c | 173 | static int xfrm_report_print(struct nlmsghdr *n, void *arg) |
c54f31ee | 174 | { |
56f5daac | 175 | FILE *fp = (FILE *)arg; |
c54f31ee MN |
176 | struct xfrm_user_report *xrep = NLMSG_DATA(n); |
177 | int len = n->nlmsg_len; | |
56f5daac | 178 | struct rtattr *tb[XFRMA_MAX+1]; |
c54f31ee MN |
179 | __u16 family; |
180 | ||
c54f31ee MN |
181 | len -= NLMSG_LENGTH(sizeof(*xrep)); |
182 | if (len < 0) { | |
183 | fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); | |
184 | return -1; | |
185 | } | |
186 | ||
187 | family = xrep->sel.family; | |
188 | if (family == AF_UNSPEC) | |
189 | family = preferred_family; | |
190 | ||
191 | fprintf(fp, "report "); | |
192 | ||
193 | fprintf(fp, "proto %s ", strxf_xfrmproto(xrep->proto)); | |
194 | fprintf(fp, "%s", _SL_); | |
195 | ||
196 | xfrm_selector_print(&xrep->sel, family, fp, " sel "); | |
197 | ||
198 | parse_rtattr(tb, XFRMA_MAX, XFRMREP_RTA(xrep), len); | |
199 | ||
200 | xfrm_xfrma_print(tb, family, fp, " "); | |
201 | ||
202 | if (oneline) | |
203 | fprintf(fp, "\n"); | |
204 | ||
205 | return 0; | |
206 | } | |
207 | ||
d1f28cf1 | 208 | static void xfrm_ae_flags_print(__u32 flags, void *arg) |
c9fd974b | 209 | { |
56f5daac SH |
210 | FILE *fp = (FILE *)arg; |
211 | ||
c9fd974b | 212 | fprintf(fp, " (0x%x) ", flags); |
213 | if (!flags) | |
214 | return; | |
215 | if (flags & XFRM_AE_CR) | |
216 | fprintf(fp, " replay update "); | |
217 | if (flags & XFRM_AE_CE) | |
218 | fprintf(fp, " timer expired "); | |
219 | if (flags & XFRM_AE_CU) | |
220 | fprintf(fp, " policy updated "); | |
221 | ||
222 | } | |
223 | ||
598a42c0 FW |
224 | static void xfrm_usersa_print(const struct xfrm_usersa_id *sa_id, __u32 reqid, FILE *fp) |
225 | { | |
656111b2 | 226 | fprintf(fp, "dst %s ", |
2e96d2cc | 227 | rt_addr_n2a(sa_id->family, sizeof(sa_id->daddr), &sa_id->daddr)); |
598a42c0 FW |
228 | |
229 | fprintf(fp, " reqid 0x%x", reqid); | |
230 | ||
231 | fprintf(fp, " protocol %s ", strxf_proto(sa_id->proto)); | |
232 | fprintf(fp, " SPI 0x%x", ntohl(sa_id->spi)); | |
233 | } | |
234 | ||
cd554f2c | 235 | static int xfrm_ae_print(struct nlmsghdr *n, void *arg) |
c9fd974b | 236 | { |
56f5daac | 237 | FILE *fp = (FILE *)arg; |
c9fd974b | 238 | struct xfrm_aevent_id *id = NLMSG_DATA(n); |
c9fd974b | 239 | |
240 | fprintf(fp, "Async event "); | |
241 | xfrm_ae_flags_print(id->flags, arg); | |
56f5daac | 242 | fprintf(fp, "\n\t"); |
26dcdf3a | 243 | fprintf(fp, "src %s ", rt_addr_n2a(id->sa_id.family, |
2e96d2cc | 244 | sizeof(id->saddr), &id->saddr)); |
598a42c0 FW |
245 | |
246 | xfrm_usersa_print(&id->sa_id, id->reqid, fp); | |
c9fd974b | 247 | |
248 | fprintf(fp, "\n"); | |
249 | fflush(fp); | |
250 | ||
251 | return 0; | |
252 | } | |
253 | ||
656111b2 | 254 | static void xfrm_print_addr(FILE *fp, int family, xfrm_address_t *a) |
598a42c0 | 255 | { |
2e96d2cc | 256 | fprintf(fp, "%s", rt_addr_n2a(family, sizeof(*a), a)); |
598a42c0 FW |
257 | } |
258 | ||
cd554f2c | 259 | static int xfrm_mapping_print(struct nlmsghdr *n, void *arg) |
598a42c0 | 260 | { |
56f5daac | 261 | FILE *fp = (FILE *)arg; |
598a42c0 FW |
262 | struct xfrm_user_mapping *map = NLMSG_DATA(n); |
263 | ||
264 | fprintf(fp, "Mapping change "); | |
656111b2 | 265 | xfrm_print_addr(fp, map->id.family, &map->old_saddr); |
598a42c0 FW |
266 | |
267 | fprintf(fp, ":%d -> ", ntohs(map->old_sport)); | |
656111b2 | 268 | xfrm_print_addr(fp, map->id.family, &map->new_saddr); |
598a42c0 FW |
269 | fprintf(fp, ":%d\n\t", ntohs(map->new_sport)); |
270 | ||
271 | xfrm_usersa_print(&map->id, map->reqid, fp); | |
272 | ||
273 | fprintf(fp, "\n"); | |
274 | fflush(fp); | |
275 | return 0; | |
276 | } | |
277 | ||
cd554f2c | 278 | static int xfrm_accept_msg(struct rtnl_ctrl_data *ctrl, |
f9cb3a2f | 279 | struct nlmsghdr *n, void *arg) |
280 | { | |
56f5daac | 281 | FILE *fp = (FILE *)arg; |
f9cb3a2f | 282 | |
90f93024 SH |
283 | if (timestamp) |
284 | print_timestamp(fp); | |
285 | ||
b6ec53e3 ND |
286 | if (listen_all_nsid) { |
287 | if (ctrl == NULL || ctrl->nsid < 0) | |
288 | fprintf(fp, "[nsid current]"); | |
289 | else | |
290 | fprintf(fp, "[nsid %d]", ctrl->nsid); | |
291 | } | |
292 | ||
efe69c1b MN |
293 | switch (n->nlmsg_type) { |
294 | case XFRM_MSG_NEWSA: | |
295 | case XFRM_MSG_DELSA: | |
296 | case XFRM_MSG_UPDSA: | |
297 | case XFRM_MSG_EXPIRE: | |
cd554f2c | 298 | xfrm_state_print(n, arg); |
c595c790 | 299 | return 0; |
efe69c1b MN |
300 | case XFRM_MSG_NEWPOLICY: |
301 | case XFRM_MSG_DELPOLICY: | |
302 | case XFRM_MSG_UPDPOLICY: | |
303 | case XFRM_MSG_POLEXPIRE: | |
cd554f2c | 304 | xfrm_policy_print(n, arg); |
c595c790 | 305 | return 0; |
efe69c1b | 306 | case XFRM_MSG_ACQUIRE: |
cd554f2c | 307 | xfrm_acquire_print(n, arg); |
f9cb3a2f | 308 | return 0; |
efe69c1b | 309 | case XFRM_MSG_FLUSHSA: |
cd554f2c | 310 | xfrm_state_flush_print(n, arg); |
f9cb3a2f | 311 | return 0; |
efe69c1b | 312 | case XFRM_MSG_FLUSHPOLICY: |
cd554f2c | 313 | xfrm_policy_flush_print(n, arg); |
f9cb3a2f | 314 | return 0; |
efe69c1b | 315 | case XFRM_MSG_REPORT: |
cd554f2c | 316 | xfrm_report_print(n, arg); |
c54f31ee | 317 | return 0; |
efe69c1b | 318 | case XFRM_MSG_NEWAE: |
cd554f2c | 319 | xfrm_ae_print(n, arg); |
c9fd974b | 320 | return 0; |
598a42c0 | 321 | case XFRM_MSG_MAPPING: |
cd554f2c | 322 | xfrm_mapping_print(n, arg); |
598a42c0 | 323 | return 0; |
efe69c1b MN |
324 | default: |
325 | break; | |
c9fd974b | 326 | } |
efe69c1b | 327 | |
f9cb3a2f | 328 | if (n->nlmsg_type != NLMSG_ERROR && n->nlmsg_type != NLMSG_NOOP && |
329 | n->nlmsg_type != NLMSG_DONE) { | |
c595c790 | 330 | fprintf(fp, "Unknown message: %08d 0x%08x 0x%08x\n", |
f9cb3a2f | 331 | n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags); |
332 | } | |
333 | return 0; | |
334 | } | |
335 | ||
77219712 SH |
336 | extern struct rtnl_handle rth; |
337 | ||
f9cb3a2f | 338 | int do_xfrm_monitor(int argc, char **argv) |
339 | { | |
f9cb3a2f | 340 | char *file = NULL; |
56f5daac SH |
341 | unsigned int groups = ~((unsigned)0); /* XXX */ |
342 | int lacquire = 0; | |
343 | int lexpire = 0; | |
344 | int laevent = 0; | |
345 | int lpolicy = 0; | |
346 | int lsa = 0; | |
347 | int lreport = 0; | |
f9cb3a2f | 348 | |
77219712 SH |
349 | rtnl_close(&rth); |
350 | ||
f9cb3a2f | 351 | while (argc > 0) { |
352 | if (matches(*argv, "file") == 0) { | |
353 | NEXT_ARG(); | |
354 | file = *argv; | |
b8e77990 NH |
355 | } else if (strcmp(*argv, "all") == 0) { |
356 | /* fall out */ | |
b6ec53e3 ND |
357 | } else if (matches(*argv, "all-nsid") == 0) { |
358 | listen_all_nsid = 1; | |
f9cb3a2f | 359 | } else if (matches(*argv, "acquire") == 0) { |
56f5daac | 360 | lacquire = 1; |
f9cb3a2f | 361 | groups = 0; |
362 | } else if (matches(*argv, "expire") == 0) { | |
56f5daac | 363 | lexpire = 1; |
f9cb3a2f | 364 | groups = 0; |
c595c790 | 365 | } else if (matches(*argv, "SA") == 0) { |
56f5daac | 366 | lsa = 1; |
c595c790 | 367 | groups = 0; |
c9fd974b | 368 | } else if (matches(*argv, "aevent") == 0) { |
56f5daac | 369 | laevent = 1; |
c9fd974b | 370 | groups = 0; |
c595c790 | 371 | } else if (matches(*argv, "policy") == 0) { |
56f5daac | 372 | lpolicy = 1; |
c595c790 | 373 | groups = 0; |
c54f31ee | 374 | } else if (matches(*argv, "report") == 0) { |
56f5daac | 375 | lreport = 1; |
c54f31ee | 376 | groups = 0; |
f9cb3a2f | 377 | } else if (matches(*argv, "help") == 0) { |
378 | usage(); | |
b8e77990 | 379 | } else { |
f9cb3a2f | 380 | fprintf(stderr, "Argument \"%s\" is unknown, try \"ip xfrm monitor help\".\n", *argv); |
381 | exit(-1); | |
382 | } | |
383 | argc--; argv++; | |
384 | } | |
385 | ||
386 | if (lacquire) | |
7b822512 | 387 | groups |= nl_mgrp(XFRMNLGRP_ACQUIRE); |
f9cb3a2f | 388 | if (lexpire) |
7b822512 | 389 | groups |= nl_mgrp(XFRMNLGRP_EXPIRE); |
c595c790 | 390 | if (lsa) |
7b822512 | 391 | groups |= nl_mgrp(XFRMNLGRP_SA); |
c595c790 | 392 | if (lpolicy) |
7b822512 | 393 | groups |= nl_mgrp(XFRMNLGRP_POLICY); |
c9fd974b | 394 | if (laevent) |
7b822512 | 395 | groups |= nl_mgrp(XFRMNLGRP_AEVENTS); |
c54f31ee | 396 | if (lreport) |
7b822512 | 397 | groups |= nl_mgrp(XFRMNLGRP_REPORT); |
f9cb3a2f | 398 | |
399 | if (file) { | |
400 | FILE *fp; | |
e49b51d6 SH |
401 | int err; |
402 | ||
f9cb3a2f | 403 | fp = fopen(file, "r"); |
404 | if (fp == NULL) { | |
405 | perror("Cannot fopen"); | |
406 | exit(-1); | |
407 | } | |
e49b51d6 SH |
408 | err = rtnl_from_file(fp, xfrm_accept_msg, stdout); |
409 | fclose(fp); | |
410 | return err; | |
f9cb3a2f | 411 | } |
412 | ||
c595c790 SH |
413 | if (rtnl_open_byproto(&rth, groups, NETLINK_XFRM) < 0) |
414 | exit(1); | |
b6ec53e3 ND |
415 | if (listen_all_nsid && rtnl_listen_all_nsid(&rth) < 0) |
416 | exit(1); | |
c595c790 | 417 | |
56f5daac | 418 | if (rtnl_listen(&rth, xfrm_accept_msg, (void *)stdout) < 0) |
f9cb3a2f | 419 | exit(2); |
420 | ||
351efcde | 421 | return 0; |
f9cb3a2f | 422 | } |