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274a4a44 | 1 | /* |
9547b5d0 QY |
2 | * CLI backend interface. |
3 | * | |
4 | * -- | |
5 | * Copyright (C) 2016 Cumulus Networks, Inc. | |
6 | * Copyright (C) 1997, 98, 99 Kunihiro Ishiguro | |
7 | * Copyright (C) 2013 by Open Source Routing. | |
8 | * Copyright (C) 2013 by Internet Systems Consortium, Inc. ("ISC") | |
9 | * | |
10 | * This file is part of GNU Zebra. | |
11 | * | |
12 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
13 | * under the terms of the GNU General Public License as published by the | |
14 | * Free Software Foundation; either version 2, or (at your option) any | |
15 | * later version. | |
16 | * | |
17 | * GNU Zebra is distributed in the hope that it will be useful, but | |
18 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
20 | * General Public License for more details. | |
21 | * | |
896014f4 DL |
22 | * You should have received a copy of the GNU General Public License along |
23 | * with this program; see the file COPYING; if not, write to the Free Software | |
24 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
9547b5d0 | 25 | */ |
718e3744 | 26 | |
27 | #include <zebra.h> | |
fe011935 | 28 | #include <lib/version.h> |
718e3744 | 29 | |
fe011935 QY |
30 | #include "command.h" |
31 | #include "frrstr.h" | |
718e3744 | 32 | #include "memory.h" |
33 | #include "log.h" | |
0bdeb5e5 | 34 | #include "log_vty.h" |
9ab6812d | 35 | #include "thread.h" |
b21b19c5 | 36 | #include "vector.h" |
d0bfb22c | 37 | #include "linklist.h" |
b21b19c5 | 38 | #include "vty.h" |
354d119a | 39 | #include "workqueue.h" |
19dc275e | 40 | #include "vrf.h" |
d0bfb22c | 41 | #include "command_match.h" |
5894e76d | 42 | #include "command_graph.h" |
1bf9f027 | 43 | #include "qobj.h" |
8efe88ea | 44 | #include "defaults.h" |
9eed278b | 45 | #include "libfrr.h" |
bd74dc61 | 46 | #include "jhash.h" |
01e24c4a | 47 | #include "hook.h" |
481bc15f | 48 | #include "lib_errors.h" |
1c2facd1 | 49 | #include "northbound_cli.h" |
5920b3eb | 50 | #include "network.h" |
d0bfb22c | 51 | |
3d19ffc5 QY |
52 | #include "frrscript.h" |
53 | ||
bf8d3d6a DL |
54 | DEFINE_MTYPE_STATIC(LIB, HOST, "Host config"); |
55 | DEFINE_MTYPE(LIB, COMPLETION, "Completion item"); | |
4a1ab8e4 | 56 | |
26fbe472 QY |
57 | #define item(x) \ |
58 | { \ | |
59 | x, #x \ | |
60 | } | |
61 | ||
62 | /* clang-format off */ | |
63 | const struct message tokennames[] = { | |
64 | item(WORD_TKN), | |
65 | item(VARIABLE_TKN), | |
66 | item(RANGE_TKN), | |
67 | item(IPV4_TKN), | |
68 | item(IPV4_PREFIX_TKN), | |
69 | item(IPV6_TKN), | |
70 | item(IPV6_PREFIX_TKN), | |
71 | item(MAC_TKN), | |
72 | item(MAC_PREFIX_TKN), | |
73 | item(FORK_TKN), | |
74 | item(JOIN_TKN), | |
75 | item(START_TKN), | |
76 | item(END_TKN), | |
77 | {0}, | |
78 | }; | |
26fbe472 | 79 | /* clang-format on */ |
a83a5331 | 80 | |
718e3744 | 81 | /* Command vector which includes some level of command lists. Normally |
82 | each daemon maintains each own cmdvec. */ | |
eb820afe | 83 | vector cmdvec = NULL; |
718e3744 | 84 | |
85 | /* Host information structure. */ | |
86 | struct host host; | |
87 | ||
419cd5a0 MK |
88 | /* |
89 | * Returns host.name if any, otherwise | |
90 | * it returns the system hostname. | |
91 | */ | |
6b3ee3a0 | 92 | const char *cmd_hostname_get(void) |
419cd5a0 MK |
93 | { |
94 | return host.name; | |
95 | } | |
96 | ||
97 | /* | |
98 | * Returns unix domainname | |
99 | */ | |
6b3ee3a0 | 100 | const char *cmd_domainname_get(void) |
419cd5a0 MK |
101 | { |
102 | return host.domainname; | |
103 | } | |
104 | ||
791ded4a DL |
105 | static int root_on_exit(struct vty *vty); |
106 | ||
718e3744 | 107 | /* Standard command node structures. */ |
d62a17ae | 108 | static struct cmd_node auth_node = { |
f4b8291f | 109 | .name = "auth", |
62b346ee DL |
110 | .node = AUTH_NODE, |
111 | .prompt = "Password: ", | |
718e3744 | 112 | }; |
113 | ||
d62a17ae | 114 | static struct cmd_node view_node = { |
f4b8291f | 115 | .name = "view", |
62b346ee DL |
116 | .node = VIEW_NODE, |
117 | .prompt = "%s> ", | |
791ded4a | 118 | .node_exit = root_on_exit, |
718e3744 | 119 | }; |
120 | ||
d62a17ae | 121 | static struct cmd_node auth_enable_node = { |
f4b8291f | 122 | .name = "auth enable", |
62b346ee DL |
123 | .node = AUTH_ENABLE_NODE, |
124 | .prompt = "Password: ", | |
718e3744 | 125 | }; |
126 | ||
d62a17ae | 127 | static struct cmd_node enable_node = { |
f4b8291f | 128 | .name = "enable", |
62b346ee DL |
129 | .node = ENABLE_NODE, |
130 | .prompt = "%s# ", | |
791ded4a | 131 | .node_exit = root_on_exit, |
718e3744 | 132 | }; |
133 | ||
612c2c15 | 134 | static int config_write_host(struct vty *vty); |
62b346ee | 135 | static struct cmd_node config_node = { |
f4b8291f | 136 | .name = "config", |
62b346ee | 137 | .node = CONFIG_NODE, |
24389580 | 138 | .parent_node = ENABLE_NODE, |
62b346ee | 139 | .prompt = "%s(config)# ", |
612c2c15 | 140 | .config_write = config_write_host, |
791ded4a | 141 | .node_exit = vty_config_node_exit, |
62b346ee | 142 | }; |
6590f2c3 | 143 | |
dd90823b CS |
144 | static bool vty_check_node_for_xpath_decrement(enum node_type target_node, |
145 | enum node_type node) | |
146 | { | |
147 | /* bgp afi-safi (`address-family <afi> <safi>`) node | |
148 | * does not increment xpath_index. | |
149 | * In order to use (`router bgp`) BGP_NODE's xpath as a base, | |
150 | * retain xpath_index as 1 upon exiting from | |
151 | * afi-safi node. | |
152 | */ | |
153 | ||
154 | if (target_node == BGP_NODE | |
155 | && (node == BGP_IPV4_NODE || node == BGP_IPV6_NODE | |
156 | || node == BGP_IPV4M_NODE || node == BGP_IPV6M_NODE | |
157 | || node == BGP_VPNV4_NODE || node == BGP_VPNV6_NODE | |
158 | || node == BGP_EVPN_NODE || node == BGP_IPV4L_NODE | |
1e93fbed DS |
159 | || node == BGP_IPV6L_NODE || node == BGP_FLOWSPECV4_NODE |
160 | || node == BGP_FLOWSPECV6_NODE)) | |
dd90823b CS |
161 | return false; |
162 | ||
163 | return true; | |
164 | } | |
165 | ||
cb585b65 | 166 | /* This is called from main when a daemon is invoked with -v or --version. */ |
d62a17ae | 167 | void print_version(const char *progname) |
6590f2c3 | 168 | { |
d62a17ae | 169 | printf("%s version %s\n", progname, FRR_VERSION); |
170 | printf("%s\n", FRR_COPYRIGHT); | |
e063f271 | 171 | #ifdef ENABLE_VERSION_BUILD_CONFIG |
d62a17ae | 172 | printf("configured with:\n\t%s\n", FRR_CONFIG_ARGS); |
e063f271 | 173 | #endif |
6590f2c3 | 174 | } |
175 | ||
d62a17ae | 176 | char *argv_concat(struct cmd_token **argv, int argc, int shift) |
177 | { | |
a6a87d63 | 178 | int cnt = MAX(argc - shift, 0); |
179 | const char *argstr[cnt + 1]; | |
180 | ||
181 | if (!cnt) | |
182 | return NULL; | |
fe011935 QY |
183 | |
184 | for (int i = 0; i < cnt; i++) | |
185 | argstr[i] = argv[i + shift]->arg; | |
186 | ||
187 | return frrstr_join(argstr, cnt, " "); | |
188 | } | |
189 | ||
190 | vector cmd_make_strvec(const char *string) | |
191 | { | |
192 | if (!string) | |
d62a17ae | 193 | return NULL; |
fe011935 QY |
194 | |
195 | const char *copy = string; | |
196 | ||
197 | /* skip leading whitespace */ | |
fefa5e0f | 198 | while (isspace((unsigned char)*copy) && *copy != '\0') |
fe011935 QY |
199 | copy++; |
200 | ||
201 | /* if the entire string was whitespace or a comment, return */ | |
202 | if (*copy == '\0' || *copy == '!' || *copy == '#') | |
203 | return NULL; | |
204 | ||
0a334343 | 205 | vector result = frrstr_split_vec(copy, "\n\r\t "); |
fe011935 QY |
206 | |
207 | for (unsigned int i = 0; i < vector_active(result); i++) { | |
208 | if (strlen(vector_slot(result, i)) == 0) { | |
209 | XFREE(MTYPE_TMP, vector_slot(result, i)); | |
f428cb8a | 210 | vector_unset(result, i); |
fe011935 | 211 | } |
d62a17ae | 212 | } |
f428cb8a QY |
213 | |
214 | vector_compact(result); | |
215 | ||
fe011935 QY |
216 | return result; |
217 | } | |
218 | ||
219 | void cmd_free_strvec(vector v) | |
220 | { | |
221 | frrstr_strvec_free(v); | |
718e3744 | 222 | } |
223 | ||
ae19d7dd QY |
224 | /** |
225 | * Convenience function for accessing argv data. | |
226 | * | |
227 | * @param argc | |
228 | * @param argv | |
229 | * @param text definition snippet of the desired token | |
230 | * @param index the starting index, and where to store the | |
231 | * index of the found token if it exists | |
232 | * @return 1 if found, 0 otherwise | |
233 | */ | |
d62a17ae | 234 | int argv_find(struct cmd_token **argv, int argc, const char *text, int *index) |
ae19d7dd | 235 | { |
d62a17ae | 236 | int found = 0; |
237 | for (int i = *index; i < argc && found == 0; i++) | |
238 | if ((found = strmatch(text, argv[i]->text))) | |
239 | *index = i; | |
240 | return found; | |
ae19d7dd QY |
241 | } |
242 | ||
d8b87afe | 243 | static unsigned int cmd_hash_key(const void *p) |
274f29b2 | 244 | { |
bd74dc61 DS |
245 | int size = sizeof(p); |
246 | ||
247 | return jhash(p, size, 0); | |
274f29b2 PJ |
248 | } |
249 | ||
74df8d6d | 250 | static bool cmd_hash_cmp(const void *a, const void *b) |
274f29b2 | 251 | { |
d62a17ae | 252 | return a == b; |
274f29b2 PJ |
253 | } |
254 | ||
718e3744 | 255 | /* Install top node of command vector. */ |
612c2c15 | 256 | void install_node(struct cmd_node *node) |
718e3744 | 257 | { |
d62a17ae | 258 | vector_set_index(cmdvec, node->node, node); |
d62a17ae | 259 | node->cmdgraph = graph_new(); |
260 | node->cmd_vector = vector_init(VECTOR_MIN_SIZE); | |
261 | // add start node | |
262 | struct cmd_token *token = | |
263 | cmd_token_new(START_TKN, CMD_ATTR_NORMAL, NULL, NULL); | |
264 | graph_new_node(node->cmdgraph, token, | |
265 | (void (*)(void *)) & cmd_token_del); | |
996c9314 | 266 | node->cmd_hash = hash_create_size(16, cmd_hash_key, cmd_hash_cmp, |
bd74dc61 | 267 | "Command Hash"); |
718e3744 | 268 | } |
269 | ||
718e3744 | 270 | /* Return prompt character of specified node. */ |
d62a17ae | 271 | const char *cmd_prompt(enum node_type node) |
718e3744 | 272 | { |
d62a17ae | 273 | struct cmd_node *cnode; |
718e3744 | 274 | |
d62a17ae | 275 | cnode = vector_slot(cmdvec, node); |
276 | return cnode->prompt; | |
718e3744 | 277 | } |
278 | ||
279 | /* Install a command into a node. */ | |
01485adb | 280 | void _install_element(enum node_type ntype, const struct cmd_element *cmd) |
718e3744 | 281 | { |
d62a17ae | 282 | struct cmd_node *cnode; |
d0bfb22c | 283 | |
d62a17ae | 284 | /* cmd_init hasn't been called */ |
285 | if (!cmdvec) { | |
286 | fprintf(stderr, "%s called before cmd_init, breakage likely\n", | |
287 | __func__); | |
288 | return; | |
289 | } | |
ebacb4ed | 290 | |
3cbb67f2 | 291 | cnode = vector_lookup(cmdvec, ntype); |
718e3744 | 292 | |
d62a17ae | 293 | if (cnode == NULL) { |
294 | fprintf(stderr, | |
3cbb67f2 | 295 | "%s[%s]:\n" |
f4b8291f | 296 | "\tnode %d does not exist.\n" |
3cbb67f2 | 297 | "\tplease call install_node() before install_element()\n", |
f4b8291f | 298 | cmd->name, cmd->string, ntype); |
d62a17ae | 299 | exit(EXIT_FAILURE); |
300 | } | |
ebacb4ed | 301 | |
154e9ca1 | 302 | if (hash_lookup(cnode->cmd_hash, (void *)cmd) != NULL) { |
d62a17ae | 303 | fprintf(stderr, |
3cbb67f2 DL |
304 | "%s[%s]:\n" |
305 | "\tnode %d (%s) already has this command installed.\n" | |
306 | "\tduplicate install_element call?\n", | |
f4b8291f | 307 | cmd->name, cmd->string, ntype, cnode->name); |
d62a17ae | 308 | return; |
309 | } | |
ebacb4ed | 310 | |
154e9ca1 | 311 | assert(hash_get(cnode->cmd_hash, (void *)cmd, hash_alloc_intern)); |
ebacb4ed | 312 | |
d62a17ae | 313 | struct graph *graph = graph_new(); |
314 | struct cmd_token *token = | |
315 | cmd_token_new(START_TKN, CMD_ATTR_NORMAL, NULL, NULL); | |
316 | graph_new_node(graph, token, (void (*)(void *)) & cmd_token_del); | |
de8f7a39 | 317 | |
d62a17ae | 318 | cmd_graph_parse(graph, cmd); |
319 | cmd_graph_names(graph); | |
320 | cmd_graph_merge(cnode->cmdgraph, graph, +1); | |
321 | graph_delete_graph(graph); | |
de8f7a39 | 322 | |
154e9ca1 | 323 | vector_set(cnode->cmd_vector, (void *)cmd); |
735e62a0 | 324 | |
d62a17ae | 325 | if (ntype == VIEW_NODE) |
01485adb | 326 | _install_element(ENABLE_NODE, cmd); |
718e3744 | 327 | } |
328 | ||
154e9ca1 | 329 | void uninstall_element(enum node_type ntype, const struct cmd_element *cmd) |
de8f7a39 | 330 | { |
d62a17ae | 331 | struct cmd_node *cnode; |
de8f7a39 | 332 | |
d62a17ae | 333 | /* cmd_init hasn't been called */ |
334 | if (!cmdvec) { | |
335 | fprintf(stderr, "%s called before cmd_init, breakage likely\n", | |
336 | __func__); | |
337 | return; | |
338 | } | |
de8f7a39 | 339 | |
3cbb67f2 | 340 | cnode = vector_lookup(cmdvec, ntype); |
de8f7a39 | 341 | |
d62a17ae | 342 | if (cnode == NULL) { |
343 | fprintf(stderr, | |
3cbb67f2 | 344 | "%s[%s]:\n" |
f4b8291f | 345 | "\tnode %d does not exist.\n" |
3cbb67f2 | 346 | "\tplease call install_node() before uninstall_element()\n", |
f4b8291f | 347 | cmd->name, cmd->string, ntype); |
d62a17ae | 348 | exit(EXIT_FAILURE); |
349 | } | |
de8f7a39 | 350 | |
154e9ca1 | 351 | if (hash_release(cnode->cmd_hash, (void *)cmd) == NULL) { |
d62a17ae | 352 | fprintf(stderr, |
3cbb67f2 DL |
353 | "%s[%s]:\n" |
354 | "\tnode %d (%s) does not have this command installed.\n" | |
355 | "\tduplicate uninstall_element call?\n", | |
f4b8291f | 356 | cmd->name, cmd->string, ntype, cnode->name); |
d62a17ae | 357 | return; |
358 | } | |
de8f7a39 | 359 | |
154e9ca1 | 360 | vector_unset_value(cnode->cmd_vector, (void *)cmd); |
de8f7a39 | 361 | |
d62a17ae | 362 | struct graph *graph = graph_new(); |
363 | struct cmd_token *token = | |
364 | cmd_token_new(START_TKN, CMD_ATTR_NORMAL, NULL, NULL); | |
365 | graph_new_node(graph, token, (void (*)(void *)) & cmd_token_del); | |
de8f7a39 | 366 | |
d62a17ae | 367 | cmd_graph_parse(graph, cmd); |
368 | cmd_graph_names(graph); | |
369 | cmd_graph_merge(cnode->cmdgraph, graph, -1); | |
370 | graph_delete_graph(graph); | |
de8f7a39 | 371 | |
d62a17ae | 372 | if (ntype == VIEW_NODE) |
373 | uninstall_element(ENABLE_NODE, cmd); | |
de8f7a39 DL |
374 | } |
375 | ||
376 | ||
2d362d10 | 377 | static const unsigned char itoa64[] = |
d62a17ae | 378 | "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; |
718e3744 | 379 | |
d62a17ae | 380 | static void to64(char *s, long v, int n) |
718e3744 | 381 | { |
d62a17ae | 382 | while (--n >= 0) { |
383 | *s++ = itoa64[v & 0x3f]; | |
384 | v >>= 6; | |
385 | } | |
718e3744 | 386 | } |
387 | ||
d62a17ae | 388 | static char *zencrypt(const char *passwd) |
718e3744 | 389 | { |
d62a17ae | 390 | char salt[6]; |
391 | struct timeval tv; | |
392 | char *crypt(const char *, const char *); | |
718e3744 | 393 | |
d62a17ae | 394 | gettimeofday(&tv, 0); |
d0bfb22c | 395 | |
5920b3eb | 396 | to64(&salt[0], frr_weak_random(), 3); |
d62a17ae | 397 | to64(&salt[3], tv.tv_usec, 3); |
398 | salt[5] = '\0'; | |
718e3744 | 399 | |
d62a17ae | 400 | return crypt(passwd, salt); |
718e3744 | 401 | } |
402 | ||
0bdeb5e5 DL |
403 | static bool full_cli; |
404 | ||
718e3744 | 405 | /* This function write configuration of this host. */ |
d62a17ae | 406 | static int config_write_host(struct vty *vty) |
407 | { | |
6b3ee3a0 MK |
408 | if (cmd_hostname_get()) |
409 | vty_out(vty, "hostname %s\n", cmd_hostname_get()); | |
d62a17ae | 410 | |
3b103fec MK |
411 | if (cmd_domainname_get()) |
412 | vty_out(vty, "domainname %s\n", cmd_domainname_get()); | |
413 | ||
0204baa8 | 414 | /* The following are all configuration commands that are not sent to |
3518f352 DS |
415 | * watchfrr. For instance watchfrr is hardcoded to log to syslog so |
416 | * we would always display 'log syslog informational' in the config | |
417 | * which would cause other daemons to then switch to syslog when they | |
418 | * parse frr.conf. | |
419 | */ | |
0bdeb5e5 | 420 | if (full_cli) { |
0204baa8 DW |
421 | if (host.encrypt) { |
422 | if (host.password_encrypt) | |
3518f352 DS |
423 | vty_out(vty, "password 8 %s\n", |
424 | host.password_encrypt); | |
0204baa8 DW |
425 | if (host.enable_encrypt) |
426 | vty_out(vty, "enable password 8 %s\n", | |
427 | host.enable_encrypt); | |
428 | } else { | |
429 | if (host.password) | |
430 | vty_out(vty, "password %s\n", host.password); | |
431 | if (host.enable) | |
3518f352 DS |
432 | vty_out(vty, "enable password %s\n", |
433 | host.enable); | |
0204baa8 | 434 | } |
0bdeb5e5 | 435 | log_config_write(vty); |
d62a17ae | 436 | |
0204baa8 DW |
437 | if (host.advanced) |
438 | vty_out(vty, "service advanced-vty\n"); | |
d62a17ae | 439 | |
0204baa8 DW |
440 | if (host.encrypt) |
441 | vty_out(vty, "service password-encryption\n"); | |
d62a17ae | 442 | |
0204baa8 | 443 | if (host.lines >= 0) |
3518f352 DS |
444 | vty_out(vty, "service terminal-length %d\n", |
445 | host.lines); | |
d62a17ae | 446 | |
0204baa8 DW |
447 | if (host.motdfile) |
448 | vty_out(vty, "banner motd file %s\n", host.motdfile); | |
19d61463 DA |
449 | else if (host.motd |
450 | && strncmp(host.motd, FRR_DEFAULT_MOTD, | |
451 | strlen(host.motd))) | |
452 | vty_out(vty, "banner motd line %s\n", host.motd); | |
0204baa8 DW |
453 | else if (!host.motd) |
454 | vty_out(vty, "no banner motd\n"); | |
455 | } | |
d62a17ae | 456 | |
9eed278b DL |
457 | if (debug_memstats_at_exit) |
458 | vty_out(vty, "!\ndebug memstats-at-exit\n"); | |
459 | ||
d62a17ae | 460 | return 1; |
718e3744 | 461 | } |
462 | ||
d0bfb22c | 463 | /* Utility function for getting command graph. */ |
d62a17ae | 464 | static struct graph *cmd_node_graph(vector v, enum node_type ntype) |
718e3744 | 465 | { |
d62a17ae | 466 | struct cmd_node *cnode = vector_slot(v, ntype); |
467 | return cnode->cmdgraph; | |
718e3744 | 468 | } |
469 | ||
d62a17ae | 470 | static int cmd_try_do_shortcut(enum node_type node, char *first_word) |
471 | { | |
472 | if (first_word != NULL && node != AUTH_NODE && node != VIEW_NODE | |
473 | && node != AUTH_ENABLE_NODE && 0 == strcmp("do", first_word)) | |
474 | return 1; | |
475 | return 0; | |
718e3744 | 476 | } |
477 | ||
d0bfb22c QY |
478 | /** |
479 | * Compare function for cmd_token. | |
480 | * Used with qsort to sort command completions. | |
481 | */ | |
d62a17ae | 482 | static int compare_completions(const void *fst, const void *snd) |
718e3744 | 483 | { |
36de6e0e A |
484 | const struct cmd_token *first = *(const struct cmd_token * const *)fst, |
485 | *secnd = *(const struct cmd_token * const *)snd; | |
d62a17ae | 486 | return strcmp(first->text, secnd->text); |
718e3744 | 487 | } |
488 | ||
d0bfb22c QY |
489 | /** |
490 | * Takes a list of completions returned by command_complete, | |
491 | * dedeuplicates them based on both text and description, | |
6011c1b2 QY |
492 | * sorts them, and returns them as a vector. |
493 | * | |
494 | * @param completions linked list of cmd_token | |
495 | * @return deduplicated and sorted vector with | |
d0bfb22c | 496 | */ |
d62a17ae | 497 | vector completions_to_vec(struct list *completions) |
498 | { | |
499 | vector comps = vector_init(VECTOR_MIN_SIZE); | |
500 | ||
501 | struct listnode *ln; | |
502 | struct cmd_token *token, *cr = NULL; | |
503 | unsigned int i, exists; | |
504 | for (ALL_LIST_ELEMENTS_RO(completions, ln, token)) { | |
505 | if (token->type == END_TKN && (cr = token)) | |
506 | continue; | |
507 | ||
508 | // linear search for token in completions vector | |
509 | exists = 0; | |
510 | for (i = 0; i < vector_active(comps) && !exists; i++) { | |
511 | struct cmd_token *curr = vector_slot(comps, i); | |
53205694 | 512 | #ifdef VTYSH_DEBUG |
d62a17ae | 513 | exists = !strcmp(curr->text, token->text) |
514 | && !strcmp(curr->desc, token->desc); | |
53205694 | 515 | #else |
d62a17ae | 516 | exists = !strcmp(curr->text, token->text); |
53205694 | 517 | #endif /* VTYSH_DEBUG */ |
d62a17ae | 518 | } |
909a2155 | 519 | |
d62a17ae | 520 | if (!exists) |
521 | vector_set(comps, token); | |
522 | } | |
cd40b329 | 523 | |
d62a17ae | 524 | // sort completions |
525 | qsort(comps->index, vector_active(comps), sizeof(void *), | |
526 | &compare_completions); | |
cd40b329 | 527 | |
d62a17ae | 528 | // make <cr> the first element, if it is present |
529 | if (cr) { | |
530 | vector_set_index(comps, vector_active(comps), NULL); | |
531 | memmove(comps->index + 1, comps->index, | |
532 | (comps->alloced - 1) * sizeof(void *)); | |
533 | vector_set_index(comps, 0, cr); | |
534 | } | |
6011c1b2 | 535 | |
d62a17ae | 536 | return comps; |
cd40b329 | 537 | } |
d0bfb22c QY |
538 | /** |
539 | * Generates a vector of cmd_token representing possible completions | |
540 | * on the current input. | |
541 | * | |
542 | * @param vline the vectorized input line | |
543 | * @param vty the vty with the node to match on | |
544 | * @param status pointer to matcher status code | |
ebacb4ed | 545 | * @return vector of struct cmd_token * with possible completions |
d0bfb22c | 546 | */ |
d62a17ae | 547 | static vector cmd_complete_command_real(vector vline, struct vty *vty, |
548 | int *status) | |
cd40b329 | 549 | { |
d62a17ae | 550 | struct list *completions; |
551 | struct graph *cmdgraph = cmd_node_graph(cmdvec, vty->node); | |
cd40b329 | 552 | |
d62a17ae | 553 | enum matcher_rv rv = command_complete(cmdgraph, vline, &completions); |
cd40b329 | 554 | |
d62a17ae | 555 | if (MATCHER_ERROR(rv)) { |
556 | *status = CMD_ERR_NO_MATCH; | |
557 | return NULL; | |
558 | } | |
b92938a7 | 559 | |
d62a17ae | 560 | vector comps = completions_to_vec(completions); |
6a154c88 | 561 | list_delete(&completions); |
b92938a7 | 562 | |
d62a17ae | 563 | // set status code appropriately |
564 | switch (vector_active(comps)) { | |
565 | case 0: | |
566 | *status = CMD_ERR_NO_MATCH; | |
567 | break; | |
568 | case 1: | |
569 | *status = CMD_COMPLETE_FULL_MATCH; | |
570 | break; | |
571 | default: | |
572 | *status = CMD_COMPLETE_LIST_MATCH; | |
573 | } | |
718e3744 | 574 | |
d62a17ae | 575 | return comps; |
d0bfb22c | 576 | } |
718e3744 | 577 | |
d62a17ae | 578 | vector cmd_describe_command(vector vline, struct vty *vty, int *status) |
d0bfb22c | 579 | { |
d62a17ae | 580 | vector ret; |
718e3744 | 581 | |
d62a17ae | 582 | if (cmd_try_do_shortcut(vty->node, vector_slot(vline, 0))) { |
583 | enum node_type onode; | |
1c2facd1 | 584 | int orig_xpath_index; |
d62a17ae | 585 | vector shifted_vline; |
586 | unsigned int index; | |
718e3744 | 587 | |
d62a17ae | 588 | onode = vty->node; |
1c2facd1 | 589 | orig_xpath_index = vty->xpath_index; |
d62a17ae | 590 | vty->node = ENABLE_NODE; |
1c2facd1 | 591 | vty->xpath_index = 0; |
d62a17ae | 592 | /* We can try it on enable node, cos' the vty is authenticated |
593 | */ | |
718e3744 | 594 | |
d62a17ae | 595 | shifted_vline = vector_init(vector_count(vline)); |
596 | /* use memcpy? */ | |
597 | for (index = 1; index < vector_active(vline); index++) { | |
598 | vector_set_index(shifted_vline, index - 1, | |
599 | vector_lookup(vline, index)); | |
600 | } | |
718e3744 | 601 | |
d62a17ae | 602 | ret = cmd_complete_command_real(shifted_vline, vty, status); |
d0bfb22c | 603 | |
d62a17ae | 604 | vector_free(shifted_vline); |
605 | vty->node = onode; | |
1c2facd1 | 606 | vty->xpath_index = orig_xpath_index; |
d62a17ae | 607 | return ret; |
608 | } | |
718e3744 | 609 | |
d62a17ae | 610 | return cmd_complete_command_real(vline, vty, status); |
718e3744 | 611 | } |
612 | ||
70d44c5c DL |
613 | static struct list *varhandlers = NULL; |
614 | ||
d62a17ae | 615 | void cmd_variable_complete(struct cmd_token *token, const char *arg, |
616 | vector comps) | |
617 | { | |
618 | struct listnode *ln; | |
619 | const struct cmd_variable_handler *cvh; | |
620 | size_t i, argsz; | |
621 | vector tmpcomps; | |
622 | ||
623 | tmpcomps = arg ? vector_init(VECTOR_MIN_SIZE) : comps; | |
624 | ||
625 | for (ALL_LIST_ELEMENTS_RO(varhandlers, ln, cvh)) { | |
626 | if (cvh->tokenname && strcmp(cvh->tokenname, token->text)) | |
627 | continue; | |
9d303b37 DL |
628 | if (cvh->varname && (!token->varname |
629 | || strcmp(cvh->varname, token->varname))) | |
d62a17ae | 630 | continue; |
631 | cvh->completions(tmpcomps, token); | |
632 | break; | |
633 | } | |
634 | ||
635 | if (!arg) | |
636 | return; | |
637 | ||
638 | argsz = strlen(arg); | |
639 | for (i = vector_active(tmpcomps); i; i--) { | |
640 | char *item = vector_slot(tmpcomps, i - 1); | |
641 | if (strlen(item) >= argsz && !strncmp(item, arg, argsz)) | |
642 | vector_set(comps, item); | |
643 | else | |
644 | XFREE(MTYPE_COMPLETION, item); | |
645 | } | |
646 | vector_free(tmpcomps); | |
70d44c5c DL |
647 | } |
648 | ||
1a0f614d QY |
649 | #define AUTOCOMP_INDENT 5 |
650 | ||
d62a17ae | 651 | char *cmd_variable_comp2str(vector comps, unsigned short cols) |
1a0f614d | 652 | { |
d62a17ae | 653 | size_t bsz = 16; |
654 | char *buf = XCALLOC(MTYPE_TMP, bsz); | |
655 | int lc = AUTOCOMP_INDENT; | |
656 | size_t cs = AUTOCOMP_INDENT; | |
657 | size_t itemlen; | |
658 | snprintf(buf, bsz, "%*s", AUTOCOMP_INDENT, ""); | |
659 | for (size_t j = 0; j < vector_active(comps); j++) { | |
660 | char *item = vector_slot(comps, j); | |
661 | itemlen = strlen(item); | |
1a0f614d | 662 | |
d62a17ae | 663 | if (cs + itemlen + AUTOCOMP_INDENT + 3 >= bsz) |
664 | buf = XREALLOC(MTYPE_TMP, buf, (bsz *= 2)); | |
1a0f614d | 665 | |
d62a17ae | 666 | if (lc + itemlen + 1 >= cols) { |
667 | cs += snprintf(&buf[cs], bsz - cs, "\n%*s", | |
668 | AUTOCOMP_INDENT, ""); | |
669 | lc = AUTOCOMP_INDENT; | |
670 | } | |
1a0f614d | 671 | |
d62a17ae | 672 | size_t written = snprintf(&buf[cs], bsz - cs, "%s ", item); |
673 | lc += written; | |
674 | cs += written; | |
675 | XFREE(MTYPE_COMPLETION, item); | |
676 | vector_set_index(comps, j, NULL); | |
677 | } | |
678 | return buf; | |
1a0f614d QY |
679 | } |
680 | ||
d62a17ae | 681 | void cmd_variable_handler_register(const struct cmd_variable_handler *cvh) |
70d44c5c | 682 | { |
d62a17ae | 683 | if (!varhandlers) |
684 | return; | |
70d44c5c | 685 | |
d62a17ae | 686 | for (; cvh->completions; cvh++) |
687 | listnode_add(varhandlers, (void *)cvh); | |
70d44c5c DL |
688 | } |
689 | ||
7f059ea6 DL |
690 | DEFUN_HIDDEN (autocomplete, |
691 | autocomplete_cmd, | |
692 | "autocomplete TYPE TEXT VARNAME", | |
693 | "Autocompletion handler (internal, for vtysh)\n" | |
694 | "cmd_token->type\n" | |
695 | "cmd_token->text\n" | |
696 | "cmd_token->varname\n") | |
697 | { | |
d62a17ae | 698 | struct cmd_token tok; |
699 | vector comps = vector_init(32); | |
700 | size_t i; | |
7f059ea6 | 701 | |
d62a17ae | 702 | memset(&tok, 0, sizeof(tok)); |
703 | tok.type = atoi(argv[1]->arg); | |
704 | tok.text = argv[2]->arg; | |
705 | tok.varname = argv[3]->arg; | |
706 | if (!strcmp(tok.varname, "-")) | |
707 | tok.varname = NULL; | |
7f059ea6 | 708 | |
d62a17ae | 709 | cmd_variable_complete(&tok, NULL, comps); |
7f059ea6 | 710 | |
d62a17ae | 711 | for (i = 0; i < vector_active(comps); i++) { |
712 | char *text = vector_slot(comps, i); | |
713 | vty_out(vty, "%s\n", text); | |
714 | XFREE(MTYPE_COMPLETION, text); | |
715 | } | |
7f059ea6 | 716 | |
d62a17ae | 717 | vector_free(comps); |
718 | return CMD_SUCCESS; | |
7f059ea6 DL |
719 | } |
720 | ||
ebacb4ed QY |
721 | /** |
722 | * Generate possible tab-completions for the given input. This function only | |
723 | * returns results that would result in a valid command if used as Readline | |
724 | * completions (as is the case in vtysh). For instance, if the passed vline ends | |
725 | * with '4.3.2', the strings 'A.B.C.D' and 'A.B.C.D/M' will _not_ be returned. | |
726 | * | |
727 | * @param vline vectorized input line | |
728 | * @param vty the vty | |
729 | * @param status location to store matcher status code in | |
730 | * @return set of valid strings for use with Readline as tab-completions. | |
731 | */ | |
732 | ||
d62a17ae | 733 | char **cmd_complete_command(vector vline, struct vty *vty, int *status) |
734 | { | |
735 | char **ret = NULL; | |
736 | int original_node = vty->node; | |
737 | vector input_line = vector_init(vector_count(vline)); | |
738 | ||
739 | // if the first token is 'do' we'll want to execute the command in the | |
740 | // enable node | |
741 | int do_shortcut = cmd_try_do_shortcut(vty->node, vector_slot(vline, 0)); | |
742 | vty->node = do_shortcut ? ENABLE_NODE : original_node; | |
743 | ||
744 | // construct the input line we'll be matching on | |
745 | unsigned int offset = (do_shortcut) ? 1 : 0; | |
746 | for (unsigned index = 0; index + offset < vector_active(vline); index++) | |
747 | vector_set_index(input_line, index, | |
748 | vector_lookup(vline, index + offset)); | |
749 | ||
750 | // get token completions -- this is a copying operation | |
751 | vector comps = NULL, initial_comps; | |
752 | initial_comps = cmd_complete_command_real(input_line, vty, status); | |
753 | ||
754 | if (!MATCHER_ERROR(*status)) { | |
755 | assert(initial_comps); | |
756 | // filter out everything that is not suitable for a | |
757 | // tab-completion | |
758 | comps = vector_init(VECTOR_MIN_SIZE); | |
759 | for (unsigned int i = 0; i < vector_active(initial_comps); | |
760 | i++) { | |
761 | struct cmd_token *token = vector_slot(initial_comps, i); | |
762 | if (token->type == WORD_TKN) | |
763 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, | |
764 | token->text)); | |
765 | else if (IS_VARYING_TOKEN(token->type)) { | |
766 | const char *ref = vector_lookup( | |
767 | vline, vector_active(vline) - 1); | |
768 | cmd_variable_complete(token, ref, comps); | |
769 | } | |
770 | } | |
771 | vector_free(initial_comps); | |
772 | ||
773 | // since we filtered results, we need to re-set status code | |
774 | switch (vector_active(comps)) { | |
775 | case 0: | |
776 | *status = CMD_ERR_NO_MATCH; | |
777 | break; | |
778 | case 1: | |
779 | *status = CMD_COMPLETE_FULL_MATCH; | |
780 | break; | |
781 | default: | |
782 | *status = CMD_COMPLETE_LIST_MATCH; | |
783 | } | |
784 | ||
785 | // copy completions text into an array of char* | |
786 | ret = XMALLOC(MTYPE_TMP, | |
787 | (vector_active(comps) + 1) * sizeof(char *)); | |
788 | unsigned int i; | |
789 | for (i = 0; i < vector_active(comps); i++) { | |
790 | ret[i] = vector_slot(comps, i); | |
791 | } | |
792 | // set the last element to NULL, because this array is used in | |
793 | // a Readline completion_generator function which expects NULL | |
794 | // as a sentinel value | |
795 | ret[i] = NULL; | |
796 | vector_free(comps); | |
797 | comps = NULL; | |
798 | } else if (initial_comps) | |
799 | vector_free(initial_comps); | |
800 | ||
801 | // comps should always be null here | |
802 | assert(!comps); | |
803 | ||
804 | // free the adjusted input line | |
805 | vector_free(input_line); | |
806 | ||
807 | // reset vty->node to its original value | |
808 | vty->node = original_node; | |
809 | ||
810 | return ret; | |
cde9f101 | 811 | } |
b92938a7 | 812 | |
b92938a7 | 813 | /* return parent node */ |
814 | /* MUST eventually converge on CONFIG_NODE */ | |
d62a17ae | 815 | enum node_type node_parent(enum node_type node) |
816 | { | |
817 | enum node_type ret; | |
818 | ||
819 | assert(node > CONFIG_NODE); | |
820 | ||
821 | switch (node) { | |
822 | case BGP_VPNV4_NODE: | |
823 | case BGP_VPNV6_NODE: | |
7c40bf39 | 824 | case BGP_FLOWSPECV4_NODE: |
825 | case BGP_FLOWSPECV6_NODE: | |
d62a17ae | 826 | case BGP_VRF_POLICY_NODE: |
827 | case BGP_VNC_DEFAULTS_NODE: | |
828 | case BGP_VNC_NVE_GROUP_NODE: | |
829 | case BGP_VNC_L2_GROUP_NODE: | |
830 | case BGP_IPV4_NODE: | |
831 | case BGP_IPV4M_NODE: | |
832 | case BGP_IPV4L_NODE: | |
833 | case BGP_IPV6_NODE: | |
834 | case BGP_IPV6M_NODE: | |
835 | case BGP_EVPN_NODE: | |
836 | case BGP_IPV6L_NODE: | |
ed18356f | 837 | case BMP_NODE: |
d62a17ae | 838 | ret = BGP_NODE; |
839 | break; | |
840 | case BGP_EVPN_VNI_NODE: | |
841 | ret = BGP_EVPN_NODE; | |
842 | break; | |
843 | case KEYCHAIN_KEY_NODE: | |
844 | ret = KEYCHAIN_NODE; | |
845 | break; | |
846 | case LINK_PARAMS_NODE: | |
847 | ret = INTERFACE_NODE; | |
848 | break; | |
849 | case LDP_IPV4_NODE: | |
850 | case LDP_IPV6_NODE: | |
851 | ret = LDP_NODE; | |
852 | break; | |
853 | case LDP_IPV4_IFACE_NODE: | |
854 | ret = LDP_IPV4_NODE; | |
855 | break; | |
856 | case LDP_IPV6_IFACE_NODE: | |
857 | ret = LDP_IPV6_NODE; | |
858 | break; | |
859 | case LDP_PSEUDOWIRE_NODE: | |
860 | ret = LDP_L2VPN_NODE; | |
861 | break; | |
c2f29cf3 RZ |
862 | case BFD_PEER_NODE: |
863 | ret = BFD_NODE; | |
864 | break; | |
d40d6c22 RZ |
865 | case BFD_PROFILE_NODE: |
866 | ret = BFD_NODE; | |
867 | break; | |
4d7b695d SM |
868 | case SR_TRAFFIC_ENG_NODE: |
869 | ret = SEGMENT_ROUTING_NODE; | |
870 | break; | |
871 | case SR_SEGMENT_LIST_NODE: | |
872 | ret = SR_TRAFFIC_ENG_NODE; | |
873 | break; | |
874 | case SR_POLICY_NODE: | |
875 | ret = SR_TRAFFIC_ENG_NODE; | |
876 | break; | |
877 | case SR_CANDIDATE_DYN_NODE: | |
878 | ret = SR_POLICY_NODE; | |
879 | break; | |
efba0985 SM |
880 | case PCEP_NODE: |
881 | ret = SR_TRAFFIC_ENG_NODE; | |
882 | break; | |
883 | case PCEP_PCE_CONFIG_NODE: | |
884 | ret = PCEP_NODE; | |
885 | break; | |
886 | case PCEP_PCE_NODE: | |
887 | ret = PCEP_NODE; | |
888 | break; | |
889 | case PCEP_PCC_NODE: | |
890 | ret = PCEP_NODE; | |
891 | break; | |
d62a17ae | 892 | default: |
893 | ret = CONFIG_NODE; | |
894 | break; | |
895 | } | |
896 | ||
897 | return ret; | |
b92938a7 | 898 | } |
899 | ||
718e3744 | 900 | /* Execute command by argument vline vector. */ |
c139972c | 901 | static int cmd_execute_command_real(vector vline, enum cmd_filter_type filter, |
d62a17ae | 902 | struct vty *vty, |
e3476061 DL |
903 | const struct cmd_element **cmd, |
904 | unsigned int up_level) | |
d62a17ae | 905 | { |
906 | struct list *argv_list; | |
907 | enum matcher_rv status; | |
908 | const struct cmd_element *matched_element = NULL; | |
e3476061 DL |
909 | unsigned int i; |
910 | int xpath_index = vty->xpath_index; | |
911 | int node = vty->node; | |
d62a17ae | 912 | |
e3476061 DL |
913 | /* only happens for legacy split config file load; need to check for |
914 | * a match before calling node_exit handlers below | |
915 | */ | |
916 | for (i = 0; i < up_level; i++) { | |
917 | if (node <= CONFIG_NODE) | |
918 | return CMD_NO_LEVEL_UP; | |
919 | ||
920 | node = node_parent(node); | |
921 | ||
922 | if (xpath_index > 0 | |
923 | && vty_check_node_for_xpath_decrement(node, vty->node)) | |
924 | xpath_index--; | |
925 | } | |
926 | ||
927 | struct graph *cmdgraph = cmd_node_graph(cmdvec, node); | |
d62a17ae | 928 | status = command_match(cmdgraph, vline, &argv_list, &matched_element); |
929 | ||
930 | if (cmd) | |
931 | *cmd = matched_element; | |
932 | ||
933 | // if matcher error, return corresponding CMD_ERR | |
934 | if (MATCHER_ERROR(status)) { | |
935 | if (argv_list) | |
6a154c88 | 936 | list_delete(&argv_list); |
d62a17ae | 937 | switch (status) { |
938 | case MATCHER_INCOMPLETE: | |
939 | return CMD_ERR_INCOMPLETE; | |
940 | case MATCHER_AMBIGUOUS: | |
941 | return CMD_ERR_AMBIGUOUS; | |
942 | default: | |
943 | return CMD_ERR_NO_MATCH; | |
944 | } | |
945 | } | |
946 | ||
e3476061 DL |
947 | for (i = 0; i < up_level; i++) |
948 | cmd_exit(vty); | |
949 | ||
d62a17ae | 950 | // build argv array from argv list |
951 | struct cmd_token **argv = XMALLOC( | |
952 | MTYPE_TMP, argv_list->count * sizeof(struct cmd_token *)); | |
953 | struct listnode *ln; | |
954 | struct cmd_token *token; | |
e3476061 DL |
955 | |
956 | i = 0; | |
d62a17ae | 957 | for (ALL_LIST_ELEMENTS_RO(argv_list, ln, token)) |
958 | argv[i++] = token; | |
959 | ||
960 | int argc = argv_list->count; | |
961 | ||
962 | int ret; | |
963 | if (matched_element->daemon) | |
964 | ret = CMD_SUCCESS_DAEMON; | |
a6233bfc | 965 | else { |
eaf6705d RW |
966 | if (vty->config) { |
967 | /* Clear array of enqueued configuration changes. */ | |
968 | vty->num_cfg_changes = 0; | |
969 | memset(&vty->cfg_changes, 0, sizeof(vty->cfg_changes)); | |
970 | ||
689b9cf5 RW |
971 | /* Regenerate candidate configuration if necessary. */ |
972 | if (frr_get_cli_mode() == FRR_CLI_CLASSIC | |
973 | && running_config->version | |
974 | > vty->candidate_config->version) | |
eaf6705d RW |
975 | nb_config_replace(vty->candidate_config, |
976 | running_config, true); | |
b855e95f RW |
977 | |
978 | /* | |
979 | * Perform pending commit (if any) before executing | |
980 | * non-YANG command. | |
981 | */ | |
982 | if (matched_element->attr != CMD_ATTR_YANG) | |
983 | nb_cli_pending_commit_check(vty); | |
eaf6705d | 984 | } |
a6233bfc | 985 | |
d62a17ae | 986 | ret = matched_element->func(matched_element, vty, argc, argv); |
a6233bfc | 987 | } |
d62a17ae | 988 | |
989 | // delete list and cmd_token's in it | |
6a154c88 | 990 | list_delete(&argv_list); |
d62a17ae | 991 | XFREE(MTYPE_TMP, argv); |
992 | ||
993 | return ret; | |
718e3744 | 994 | } |
995 | ||
cd40b329 CF |
996 | /** |
997 | * Execute a given command, handling things like "do ..." and checking | |
998 | * whether the given command might apply at a parent node if doesn't | |
999 | * apply for the current node. | |
1000 | * | |
1001 | * @param vline Command line input, vector of char* where each element is | |
1002 | * one input token. | |
1003 | * @param vty The vty context in which the command should be executed. | |
1004 | * @param cmd Pointer where the struct cmd_element of the matched command | |
1005 | * will be stored, if any. May be set to NULL if this info is | |
1006 | * not needed. | |
1007 | * @param vtysh If set != 0, don't lookup the command at parent nodes. | |
1008 | * @return The status of the command that has been executed or an error code | |
1009 | * as to why no command could be executed. | |
1010 | */ | |
d62a17ae | 1011 | int cmd_execute_command(vector vline, struct vty *vty, |
1012 | const struct cmd_element **cmd, int vtysh) | |
17aca20b | 1013 | { |
d62a17ae | 1014 | int ret, saved_ret = 0; |
1015 | enum node_type onode, try_node; | |
1c2facd1 | 1016 | int orig_xpath_index; |
eda031f6 | 1017 | |
d62a17ae | 1018 | onode = try_node = vty->node; |
1c2facd1 | 1019 | orig_xpath_index = vty->xpath_index; |
b92938a7 | 1020 | |
d62a17ae | 1021 | if (cmd_try_do_shortcut(vty->node, vector_slot(vline, 0))) { |
1022 | vector shifted_vline; | |
1023 | unsigned int index; | |
b92938a7 | 1024 | |
d62a17ae | 1025 | vty->node = ENABLE_NODE; |
1c2facd1 | 1026 | vty->xpath_index = 0; |
d62a17ae | 1027 | /* We can try it on enable node, cos' the vty is authenticated |
1028 | */ | |
b92938a7 | 1029 | |
d62a17ae | 1030 | shifted_vline = vector_init(vector_count(vline)); |
1031 | /* use memcpy? */ | |
1032 | for (index = 1; index < vector_active(vline); index++) | |
1033 | vector_set_index(shifted_vline, index - 1, | |
1034 | vector_lookup(vline, index)); | |
b92938a7 | 1035 | |
d62a17ae | 1036 | ret = cmd_execute_command_real(shifted_vline, FILTER_RELAXED, |
e3476061 | 1037 | vty, cmd, 0); |
b92938a7 | 1038 | |
d62a17ae | 1039 | vector_free(shifted_vline); |
1040 | vty->node = onode; | |
1c2facd1 | 1041 | vty->xpath_index = orig_xpath_index; |
d62a17ae | 1042 | return ret; |
1043 | } | |
b92938a7 | 1044 | |
d62a17ae | 1045 | saved_ret = ret = |
e3476061 | 1046 | cmd_execute_command_real(vline, FILTER_RELAXED, vty, cmd, 0); |
b92938a7 | 1047 | |
d62a17ae | 1048 | if (vtysh) |
1049 | return saved_ret; | |
87d683b0 | 1050 | |
825d5fbf CS |
1051 | if (ret != CMD_SUCCESS && ret != CMD_WARNING |
1052 | && ret != CMD_NOT_MY_INSTANCE && ret != CMD_WARNING_CONFIG_FAILED) { | |
d62a17ae | 1053 | /* This assumes all nodes above CONFIG_NODE are childs of |
1054 | * CONFIG_NODE */ | |
1055 | while (vty->node > CONFIG_NODE) { | |
1056 | try_node = node_parent(try_node); | |
1057 | vty->node = try_node; | |
dd90823b CS |
1058 | if (vty->xpath_index > 0 |
1059 | && vty_check_node_for_xpath_decrement(try_node, | |
1060 | onode)) | |
1c2facd1 | 1061 | vty->xpath_index--; |
d62a17ae | 1062 | ret = cmd_execute_command_real(vline, FILTER_RELAXED, |
e3476061 | 1063 | vty, cmd, 0); |
825d5fbf CS |
1064 | if (ret == CMD_SUCCESS || ret == CMD_WARNING |
1065 | || ret == CMD_NOT_MY_INSTANCE | |
1066 | || ret == CMD_WARNING_CONFIG_FAILED) | |
d62a17ae | 1067 | return ret; |
1068 | } | |
1069 | /* no command succeeded, reset the vty to the original node */ | |
1070 | vty->node = onode; | |
1c2facd1 | 1071 | vty->xpath_index = orig_xpath_index; |
d62a17ae | 1072 | } |
04e64062 | 1073 | |
d62a17ae | 1074 | /* return command status for original node */ |
1075 | return saved_ret; | |
b92938a7 | 1076 | } |
1077 | ||
cd40b329 CF |
1078 | /** |
1079 | * Execute a given command, matching it strictly against the current node. | |
1080 | * This mode is used when reading config files. | |
1081 | * | |
1082 | * @param vline Command line input, vector of char* where each element is | |
1083 | * one input token. | |
1084 | * @param vty The vty context in which the command should be executed. | |
1085 | * @param cmd Pointer where the struct cmd_element* of the matched command | |
1086 | * will be stored, if any. May be set to NULL if this info is | |
1087 | * not needed. | |
1088 | * @return The status of the command that has been executed or an error code | |
1089 | * as to why no command could be executed. | |
1090 | */ | |
d62a17ae | 1091 | int cmd_execute_command_strict(vector vline, struct vty *vty, |
1092 | const struct cmd_element **cmd) | |
718e3744 | 1093 | { |
e3476061 | 1094 | return cmd_execute_command_real(vline, FILTER_STRICT, vty, cmd, 0); |
718e3744 | 1095 | } |
1096 | ||
01e24c4a QY |
1097 | /* |
1098 | * Hook for preprocessing command string before executing. | |
1099 | * | |
1100 | * All subscribers are called with the raw command string that is to be | |
1101 | * executed. If any changes are to be made, a new string should be allocated | |
1102 | * with MTYPE_TMP and *cmd_out updated to point to this new string. The caller | |
1103 | * is then responsible for freeing this string. | |
1104 | * | |
1105 | * All processing functions must be mutually exclusive in their action, i.e. if | |
1106 | * one subscriber decides to modify the command, all others must not modify it | |
1107 | * when called. Feeding the output of one processing command into a subsequent | |
1108 | * one is not supported. | |
1109 | * | |
1110 | * This hook is intentionally internal to the command processing system. | |
1111 | * | |
1112 | * cmd_in | |
1113 | * The raw command string. | |
1114 | * | |
1115 | * cmd_out | |
1116 | * The result of any processing. | |
1117 | */ | |
1118 | DECLARE_HOOK(cmd_execute, | |
0a334343 | 1119 | (struct vty *vty, const char *cmd_in, char **cmd_out), |
01e24c4a | 1120 | (vty, cmd_in, cmd_out)); |
0a334343 | 1121 | DEFINE_HOOK(cmd_execute, (struct vty *vty, const char *cmd_in, char **cmd_out), |
01e24c4a QY |
1122 | (vty, cmd_in, cmd_out)); |
1123 | ||
1124 | /* Hook executed after a CLI command. */ | |
0a334343 | 1125 | DECLARE_KOOH(cmd_execute_done, (struct vty *vty, const char *cmd_exec), |
01e24c4a | 1126 | (vty, cmd_exec)); |
0a334343 | 1127 | DEFINE_KOOH(cmd_execute_done, (struct vty *vty, const char *cmd_exec), |
01e24c4a QY |
1128 | (vty, cmd_exec)); |
1129 | ||
fe6b47b9 QY |
1130 | /* |
1131 | * cmd_execute hook subscriber to handle `|` actions. | |
1132 | */ | |
1133 | static int handle_pipe_action(struct vty *vty, const char *cmd_in, | |
1134 | char **cmd_out) | |
1135 | { | |
1136 | /* look for `|` */ | |
9f227e4c | 1137 | char *orig, *working, *token, *u; |
fe6b47b9 | 1138 | char *pipe = strstr(cmd_in, "| "); |
2f272cb4 | 1139 | int ret = 0; |
fe6b47b9 QY |
1140 | |
1141 | if (!pipe) | |
1142 | return 0; | |
1143 | ||
1144 | /* duplicate string for processing purposes, not including pipe */ | |
1145 | orig = working = XSTRDUP(MTYPE_TMP, pipe + 2); | |
1146 | ||
1147 | /* retrieve action */ | |
1148 | token = strsep(&working, " "); | |
4f4060f6 | 1149 | assert(token); |
fe6b47b9 QY |
1150 | |
1151 | /* match result to known actions */ | |
1152 | if (strmatch(token, "include")) { | |
1153 | /* the remaining text should be a regexp */ | |
1154 | char *regexp = working; | |
5d806ec6 QY |
1155 | |
1156 | if (!regexp) { | |
1157 | vty_out(vty, "%% Need a regexp to filter with\n"); | |
2f272cb4 | 1158 | ret = 1; |
5d806ec6 QY |
1159 | goto fail; |
1160 | } | |
1161 | ||
fe6b47b9 | 1162 | bool succ = vty_set_include(vty, regexp); |
0a334343 | 1163 | |
fe6b47b9 | 1164 | if (!succ) { |
5d806ec6 | 1165 | vty_out(vty, "%% Bad regexp '%s'\n", regexp); |
2f272cb4 | 1166 | ret = 1; |
fe6b47b9 QY |
1167 | goto fail; |
1168 | } | |
2cddf2ff | 1169 | *cmd_out = XSTRDUP(MTYPE_TMP, cmd_in); |
9f227e4c | 1170 | u = *cmd_out; |
1171 | strsep(&u, "|"); | |
fe6b47b9 | 1172 | } else { |
5d806ec6 | 1173 | vty_out(vty, "%% Unknown action '%s'\n", token); |
2f272cb4 | 1174 | ret = 1; |
fe6b47b9 QY |
1175 | goto fail; |
1176 | } | |
1177 | ||
1178 | fail: | |
1179 | XFREE(MTYPE_TMP, orig); | |
2f272cb4 | 1180 | return ret; |
fe6b47b9 QY |
1181 | } |
1182 | ||
1183 | static int handle_pipe_action_done(struct vty *vty, const char *cmd_exec) | |
1184 | { | |
0b42d81a | 1185 | if (vty->filter) |
fe6b47b9 | 1186 | vty_set_include(vty, NULL); |
0b42d81a | 1187 | |
fe6b47b9 QY |
1188 | return 0; |
1189 | } | |
1190 | ||
01e24c4a QY |
1191 | int cmd_execute(struct vty *vty, const char *cmd, |
1192 | const struct cmd_element **matched, int vtysh) | |
1193 | { | |
1194 | int ret; | |
1195 | char *cmd_out = NULL; | |
2f272cb4 | 1196 | const char *cmd_exec = NULL; |
01e24c4a QY |
1197 | vector vline; |
1198 | ||
2f272cb4 IR |
1199 | ret = hook_call(cmd_execute, vty, cmd, &cmd_out); |
1200 | if (ret) { | |
1201 | ret = CMD_WARNING; | |
1202 | goto free; | |
1203 | } | |
1204 | ||
01e24c4a QY |
1205 | cmd_exec = cmd_out ? (const char *)cmd_out : cmd; |
1206 | ||
1207 | vline = cmd_make_strvec(cmd_exec); | |
1208 | ||
1209 | if (vline) { | |
1210 | ret = cmd_execute_command(vline, vty, matched, vtysh); | |
1211 | cmd_free_strvec(vline); | |
1212 | } else { | |
1213 | ret = CMD_SUCCESS; | |
1214 | } | |
1215 | ||
2f272cb4 | 1216 | free: |
01e24c4a QY |
1217 | hook_call(cmd_execute_done, vty, cmd_exec); |
1218 | ||
0a22ddfb | 1219 | XFREE(MTYPE_TMP, cmd_out); |
01e24c4a QY |
1220 | |
1221 | return ret; | |
1222 | } | |
1223 | ||
1224 | ||
bed578b8 | 1225 | /** |
d62a17ae | 1226 | * Parse one line of config, walking up the parse tree attempting to find a |
1227 | * match | |
bed578b8 DS |
1228 | * |
1229 | * @param vty The vty context in which the command should be executed. | |
1230 | * @param cmd Pointer where the struct cmd_element* of the match command | |
1231 | * will be stored, if any. May be set to NULL if this info is | |
1232 | * not needed. | |
d62a17ae | 1233 | * @param use_daemon Boolean to control whether or not we match on |
1234 | * CMD_SUCCESS_DAEMON | |
bed578b8 DS |
1235 | * or not. |
1236 | * @return The status of the command that has been executed or an error code | |
1237 | * as to why no command could be executed. | |
1238 | */ | |
d62a17ae | 1239 | int command_config_read_one_line(struct vty *vty, |
7ab57d19 DS |
1240 | const struct cmd_element **cmd, |
1241 | uint32_t line_num, int use_daemon) | |
bed578b8 | 1242 | { |
d62a17ae | 1243 | vector vline; |
d62a17ae | 1244 | int ret; |
e3476061 | 1245 | unsigned up_level = 0; |
bed578b8 | 1246 | |
d62a17ae | 1247 | vline = cmd_make_strvec(vty->buf); |
bed578b8 | 1248 | |
d62a17ae | 1249 | /* In case of comment line */ |
1250 | if (vline == NULL) | |
1251 | return CMD_SUCCESS; | |
bed578b8 | 1252 | |
d62a17ae | 1253 | /* Execute configuration command : this is strict match */ |
1254 | ret = cmd_execute_command_strict(vline, vty, cmd); | |
bed578b8 | 1255 | |
e3476061 DL |
1256 | /* The logic for trying parent nodes is in cmd_execute_command_real() |
1257 | * since calling ->node_exit() correctly is a bit involved. This is | |
1258 | * also the only reason CMD_NO_LEVEL_UP exists. | |
1259 | */ | |
1260 | while (!(use_daemon && ret == CMD_SUCCESS_DAEMON) | |
1261 | && !(!use_daemon && ret == CMD_ERR_NOTHING_TODO) | |
1262 | && ret != CMD_SUCCESS && ret != CMD_WARNING | |
1263 | && ret != CMD_NOT_MY_INSTANCE && ret != CMD_WARNING_CONFIG_FAILED | |
1264 | && ret != CMD_NO_LEVEL_UP) | |
1265 | ret = cmd_execute_command_real(vline, FILTER_STRICT, vty, cmd, | |
1266 | ++up_level); | |
1267 | ||
1268 | if (ret == CMD_NO_LEVEL_UP) | |
1269 | ret = CMD_ERR_NO_MATCH; | |
bed578b8 | 1270 | |
b45d8ccc DS |
1271 | if (ret != CMD_SUCCESS && |
1272 | ret != CMD_WARNING && | |
1273 | ret != CMD_SUCCESS_DAEMON) { | |
7ab57d19 DS |
1274 | struct vty_error *ve = XCALLOC(MTYPE_TMP, sizeof(*ve)); |
1275 | ||
1276 | memcpy(ve->error_buf, vty->buf, VTY_BUFSIZ); | |
1277 | ve->line_num = line_num; | |
1278 | if (!vty->error) | |
1279 | vty->error = list_new(); | |
1280 | ||
1281 | listnode_add(vty->error, ve); | |
1282 | } | |
cbd7259d | 1283 | |
d62a17ae | 1284 | cmd_free_strvec(vline); |
bed578b8 | 1285 | |
d62a17ae | 1286 | return ret; |
bed578b8 DS |
1287 | } |
1288 | ||
5689fe5f | 1289 | /* Configuration make from file. */ |
d62a17ae | 1290 | int config_from_file(struct vty *vty, FILE *fp, unsigned int *line_num) |
718e3744 | 1291 | { |
d62a17ae | 1292 | int ret, error_ret = 0; |
1293 | *line_num = 0; | |
718e3744 | 1294 | |
d62a17ae | 1295 | while (fgets(vty->buf, VTY_BUFSIZ, fp)) { |
7ab57d19 | 1296 | ++(*line_num); |
13fbc82d | 1297 | |
7ab57d19 | 1298 | ret = command_config_read_one_line(vty, NULL, *line_num, 0); |
718e3744 | 1299 | |
d62a17ae | 1300 | if (ret != CMD_SUCCESS && ret != CMD_WARNING |
1301 | && ret != CMD_ERR_NOTHING_TODO) | |
1302 | error_ret = ret; | |
1303 | } | |
5689fe5f | 1304 | |
d62a17ae | 1305 | if (error_ret) { |
1306 | return error_ret; | |
1307 | } | |
5689fe5f | 1308 | |
d62a17ae | 1309 | return CMD_SUCCESS; |
718e3744 | 1310 | } |
1311 | ||
5689fe5f | 1312 | /* Configuration from terminal */ |
718e3744 | 1313 | DEFUN (config_terminal, |
1314 | config_terminal_cmd, | |
dc1c13c0 | 1315 | "configure [terminal]", |
718e3744 | 1316 | "Configuration from vty interface\n" |
1317 | "Configuration terminal\n") | |
1318 | { | |
f344c66e | 1319 | return vty_config_enter(vty, false, false); |
718e3744 | 1320 | } |
1321 | ||
1322 | /* Enable command */ | |
d0bfb22c | 1323 | DEFUN (enable, |
718e3744 | 1324 | config_enable_cmd, |
1325 | "enable", | |
1326 | "Turn on privileged mode command\n") | |
1327 | { | |
d62a17ae | 1328 | /* If enable password is NULL, change to ENABLE_NODE */ |
1329 | if ((host.enable == NULL && host.enable_encrypt == NULL) | |
1330 | || vty->type == VTY_SHELL_SERV) | |
1331 | vty->node = ENABLE_NODE; | |
1332 | else | |
1333 | vty->node = AUTH_ENABLE_NODE; | |
718e3744 | 1334 | |
d62a17ae | 1335 | return CMD_SUCCESS; |
718e3744 | 1336 | } |
1337 | ||
1338 | /* Disable command */ | |
d0bfb22c | 1339 | DEFUN (disable, |
718e3744 | 1340 | config_disable_cmd, |
1341 | "disable", | |
1342 | "Turn off privileged mode command\n") | |
1343 | { | |
d62a17ae | 1344 | if (vty->node == ENABLE_NODE) |
1345 | vty->node = VIEW_NODE; | |
1346 | return CMD_SUCCESS; | |
718e3744 | 1347 | } |
1348 | ||
1349 | /* Down vty node level. */ | |
1350 | DEFUN (config_exit, | |
1351 | config_exit_cmd, | |
1352 | "exit", | |
1353 | "Exit current mode and down to previous mode\n") | |
0b84f294 | 1354 | { |
d62a17ae | 1355 | cmd_exit(vty); |
1356 | return CMD_SUCCESS; | |
1357 | } | |
1358 | ||
791ded4a DL |
1359 | static int root_on_exit(struct vty *vty) |
1360 | { | |
1361 | if (vty_shell(vty)) | |
1362 | exit(0); | |
1363 | else | |
1364 | vty->status = VTY_CLOSE; | |
1365 | return 0; | |
1366 | } | |
1367 | ||
d62a17ae | 1368 | void cmd_exit(struct vty *vty) |
1369 | { | |
24389580 | 1370 | struct cmd_node *cnode = vector_lookup(cmdvec, vty->node); |
1c2facd1 | 1371 | |
791ded4a DL |
1372 | if (cnode->node_exit) { |
1373 | if (!cnode->node_exit(vty)) | |
1374 | return; | |
d62a17ae | 1375 | } |
791ded4a DL |
1376 | if (cnode->parent_node) |
1377 | vty->node = cnode->parent_node; | |
dd90823b CS |
1378 | if (vty->xpath_index > 0 |
1379 | && vty_check_node_for_xpath_decrement(vty->node, cnode->node)) | |
1c2facd1 | 1380 | vty->xpath_index--; |
718e3744 | 1381 | } |
1382 | ||
f667a580 QY |
1383 | /* ALIAS_FIXME */ |
1384 | DEFUN (config_quit, | |
1385 | config_quit_cmd, | |
1386 | "quit", | |
1387 | "Exit current mode and down to previous mode\n") | |
1388 | { | |
d62a17ae | 1389 | return config_exit(self, vty, argc, argv); |
f667a580 QY |
1390 | } |
1391 | ||
d0bfb22c | 1392 | |
718e3744 | 1393 | /* End of configuration. */ |
1394 | DEFUN (config_end, | |
1395 | config_end_cmd, | |
1396 | "end", | |
efd7904e | 1397 | "End current mode and change to enable mode.\n") |
718e3744 | 1398 | { |
cf09d3ca | 1399 | if (vty->config) { |
f344c66e | 1400 | vty_config_exit(vty); |
d62a17ae | 1401 | vty->node = ENABLE_NODE; |
d62a17ae | 1402 | } |
1403 | return CMD_SUCCESS; | |
718e3744 | 1404 | } |
1405 | ||
1406 | /* Show version. */ | |
1407 | DEFUN (show_version, | |
1408 | show_version_cmd, | |
1409 | "show version", | |
1410 | SHOW_STR | |
1411 | "Displays zebra version\n") | |
1412 | { | |
d62a17ae | 1413 | vty_out(vty, "%s %s (%s).\n", FRR_FULL_NAME, FRR_VERSION, |
6b3ee3a0 | 1414 | cmd_hostname_get() ? cmd_hostname_get() : ""); |
d62a17ae | 1415 | vty_out(vty, "%s%s\n", FRR_COPYRIGHT, GIT_INFO); |
e063f271 | 1416 | #ifdef ENABLE_VERSION_BUILD_CONFIG |
d62a17ae | 1417 | vty_out(vty, "configured with:\n %s\n", FRR_CONFIG_ARGS); |
e063f271 | 1418 | #endif |
d62a17ae | 1419 | return CMD_SUCCESS; |
718e3744 | 1420 | } |
1421 | ||
1422 | /* Help display function for all node. */ | |
1423 | DEFUN (config_help, | |
1424 | config_help_cmd, | |
1425 | "help", | |
1426 | "Description of the interactive help system\n") | |
1427 | { | |
d62a17ae | 1428 | vty_out(vty, |
1429 | "Quagga VTY provides advanced help feature. When you need help,\n\ | |
61b7d449 DL |
1430 | anytime at the command line please press '?'.\n\ |
1431 | \n\ | |
1432 | If nothing matches, the help list will be empty and you must backup\n\ | |
1433 | until entering a '?' shows the available options.\n\ | |
1434 | Two styles of help are provided:\n\ | |
1435 | 1. Full help is available when you are ready to enter a\n\ | |
1436 | command argument (e.g. 'show ?') and describes each possible\n\ | |
1437 | argument.\n\ | |
1438 | 2. Partial help is provided when an abbreviated argument is entered\n\ | |
1439 | and you want to know what arguments match the input\n\ | |
1440 | (e.g. 'show me?'.)\n\n"); | |
d62a17ae | 1441 | return CMD_SUCCESS; |
1442 | } | |
1443 | ||
1444 | static void permute(struct graph_node *start, struct vty *vty) | |
1445 | { | |
1446 | static struct list *position = NULL; | |
1447 | if (!position) | |
1448 | position = list_new(); | |
1449 | ||
1450 | struct cmd_token *stok = start->data; | |
1451 | struct graph_node *gnn; | |
1452 | struct listnode *ln; | |
1453 | ||
1454 | // recursive dfs | |
1455 | listnode_add(position, start); | |
1456 | for (unsigned int i = 0; i < vector_active(start->to); i++) { | |
1457 | struct graph_node *gn = vector_slot(start->to, i); | |
1458 | struct cmd_token *tok = gn->data; | |
1459 | if (tok->attr == CMD_ATTR_HIDDEN | |
1460 | || tok->attr == CMD_ATTR_DEPRECATED) | |
1461 | continue; | |
1462 | else if (tok->type == END_TKN || gn == start) { | |
1463 | vty_out(vty, " "); | |
1464 | for (ALL_LIST_ELEMENTS_RO(position, ln, gnn)) { | |
1465 | struct cmd_token *tt = gnn->data; | |
1466 | if (tt->type < SPECIAL_TKN) | |
1467 | vty_out(vty, " %s", tt->text); | |
1468 | } | |
1469 | if (gn == start) | |
1470 | vty_out(vty, "..."); | |
1471 | vty_out(vty, "\n"); | |
1472 | } else { | |
1473 | bool skip = false; | |
1474 | if (stok->type == FORK_TKN && tok->type != FORK_TKN) | |
1475 | for (ALL_LIST_ELEMENTS_RO(position, ln, gnn)) | |
1476 | if (gnn == gn) { | |
1477 | skip = true; | |
1478 | break; | |
1479 | } | |
1480 | if (!skip) | |
1481 | permute(gn, vty); | |
1482 | } | |
1483 | } | |
1484 | list_delete_node(position, listtail(position)); | |
1485 | } | |
1486 | ||
1487 | int cmd_list_cmds(struct vty *vty, int do_permute) | |
1488 | { | |
1489 | struct cmd_node *node = vector_slot(cmdvec, vty->node); | |
1490 | ||
1491 | if (do_permute) | |
1492 | permute(vector_slot(node->cmdgraph->nodes, 0), vty); | |
1493 | else { | |
1494 | /* loop over all commands at this node */ | |
154e9ca1 | 1495 | const struct cmd_element *element = NULL; |
d62a17ae | 1496 | for (unsigned int i = 0; i < vector_active(node->cmd_vector); |
1497 | i++) | |
1498 | if ((element = vector_slot(node->cmd_vector, i)) | |
1499 | && element->attr != CMD_ATTR_DEPRECATED | |
1500 | && element->attr != CMD_ATTR_HIDDEN) | |
1501 | vty_out(vty, " %s\n", element->string); | |
1502 | } | |
1503 | return CMD_SUCCESS; | |
718e3744 | 1504 | } |
1505 | ||
0b84f294 DL |
1506 | /* Help display function for all node. */ |
1507 | DEFUN (config_list, | |
1508 | config_list_cmd, | |
1509 | "list [permutations]", | |
1510 | "Print command list\n" | |
1511 | "Print all possible command permutations\n") | |
1512 | { | |
d62a17ae | 1513 | return cmd_list_cmds(vty, argc == 2); |
0b84f294 DL |
1514 | } |
1515 | ||
a2454870 QY |
1516 | DEFUN (show_commandtree, |
1517 | show_commandtree_cmd, | |
1518 | "show commandtree [permutations]", | |
1519 | SHOW_STR | |
5a1945e4 DS |
1520 | "Show command tree\n" |
1521 | "Permutations that we are interested in\n") | |
a2454870 | 1522 | { |
d62a17ae | 1523 | return cmd_list_cmds(vty, argc == 3); |
a2454870 QY |
1524 | } |
1525 | ||
26fbe472 QY |
1526 | DEFUN_HIDDEN(show_cli_graph, |
1527 | show_cli_graph_cmd, | |
1528 | "show cli graph", | |
1529 | SHOW_STR | |
1530 | "CLI reflection\n" | |
1531 | "Dump current command space as DOT graph\n") | |
1532 | { | |
1533 | struct cmd_node *cn = vector_slot(cmdvec, vty->node); | |
1534 | char *dot = cmd_graph_dump_dot(cn->cmdgraph); | |
1535 | ||
1536 | vty_out(vty, "%s\n", dot); | |
1537 | XFREE(MTYPE_TMP, dot); | |
1538 | return CMD_SUCCESS; | |
1539 | } | |
1540 | ||
f806f29c | 1541 | static int vty_write_config(struct vty *vty) |
8efe88ea | 1542 | { |
d62a17ae | 1543 | size_t i; |
1544 | struct cmd_node *node; | |
8efe88ea | 1545 | |
f806f29c | 1546 | if (host.noconfig) |
1547 | return CMD_SUCCESS; | |
1548 | ||
5e6a9350 RW |
1549 | nb_cli_show_config_prepare(running_config, false); |
1550 | ||
d62a17ae | 1551 | if (vty->type == VTY_TERM) { |
1552 | vty_out(vty, "\nCurrent configuration:\n"); | |
1553 | vty_out(vty, "!\n"); | |
1554 | } | |
8efe88ea | 1555 | |
ac4adef4 DL |
1556 | if (strcmp(frr_defaults_version(), FRR_VER_SHORT)) |
1557 | vty_out(vty, "! loaded from %s\n", frr_defaults_version()); | |
d62a17ae | 1558 | vty_out(vty, "frr version %s\n", FRR_VER_SHORT); |
ac4adef4 | 1559 | vty_out(vty, "frr defaults %s\n", frr_defaults_profile()); |
d62a17ae | 1560 | vty_out(vty, "!\n"); |
8efe88ea | 1561 | |
8685be73 | 1562 | for (i = 0; i < vector_active(cmdvec); i++) |
612c2c15 DL |
1563 | if ((node = vector_slot(cmdvec, i)) && node->config_write) { |
1564 | if ((*node->config_write)(vty)) | |
8685be73 RW |
1565 | vty_out(vty, "!\n"); |
1566 | } | |
8efe88ea | 1567 | |
d62a17ae | 1568 | if (vty->type == VTY_TERM) { |
1569 | vty_out(vty, "end\n"); | |
1570 | } | |
8efe88ea | 1571 | |
f806f29c | 1572 | return CMD_SUCCESS; |
1573 | } | |
d862bffb | 1574 | |
f806f29c | 1575 | static int file_write_config(struct vty *vty) |
718e3744 | 1576 | { |
d62a17ae | 1577 | int fd, dirfd; |
1578 | char *config_file, *slash; | |
1579 | char *config_file_tmp = NULL; | |
1580 | char *config_file_sav = NULL; | |
1581 | int ret = CMD_WARNING; | |
1582 | struct vty *file_vty; | |
1583 | struct stat conf_stat; | |
1584 | ||
d62a17ae | 1585 | if (host.noconfig) |
1586 | return CMD_SUCCESS; | |
1587 | ||
1588 | /* Check and see if we are operating under vtysh configuration */ | |
1589 | if (host.config == NULL) { | |
1590 | vty_out(vty, | |
1591 | "Can't save to configuration file, using vtysh.\n"); | |
1592 | return CMD_WARNING; | |
1593 | } | |
1594 | ||
1595 | /* Get filename. */ | |
1596 | config_file = host.config; | |
d0bfb22c | 1597 | |
056cfe49 DL |
1598 | #ifndef O_DIRECTORY |
1599 | #define O_DIRECTORY 0 | |
1600 | #endif | |
d62a17ae | 1601 | slash = strrchr(config_file, '/'); |
1602 | if (slash) { | |
1603 | char *config_dir = XSTRDUP(MTYPE_TMP, config_file); | |
1604 | config_dir[slash - config_file] = '\0'; | |
1605 | dirfd = open(config_dir, O_DIRECTORY | O_RDONLY); | |
1606 | XFREE(MTYPE_TMP, config_dir); | |
1607 | } else | |
1608 | dirfd = open(".", O_DIRECTORY | O_RDONLY); | |
1609 | /* if dirfd is invalid, directory sync fails, but we're still OK */ | |
1610 | ||
9f73d2c9 QY |
1611 | size_t config_file_sav_sz = strlen(config_file) + strlen(CONF_BACKUP_EXT) + 1; |
1612 | config_file_sav = XMALLOC(MTYPE_TMP, config_file_sav_sz); | |
1613 | strlcpy(config_file_sav, config_file, config_file_sav_sz); | |
1614 | strlcat(config_file_sav, CONF_BACKUP_EXT, config_file_sav_sz); | |
d62a17ae | 1615 | |
1616 | ||
1617 | config_file_tmp = XMALLOC(MTYPE_TMP, strlen(config_file) + 8); | |
fc746f1c QY |
1618 | snprintf(config_file_tmp, strlen(config_file) + 8, "%s.XXXXXX", |
1619 | config_file); | |
d62a17ae | 1620 | |
1621 | /* Open file to configuration write. */ | |
1622 | fd = mkstemp(config_file_tmp); | |
1623 | if (fd < 0) { | |
1624 | vty_out(vty, "Can't open configuration file %s.\n", | |
1625 | config_file_tmp); | |
1626 | goto finished; | |
1627 | } | |
1628 | if (fchmod(fd, CONFIGFILE_MASK) != 0) { | |
1629 | vty_out(vty, "Can't chmod configuration file %s: %s (%d).\n", | |
1630 | config_file_tmp, safe_strerror(errno), errno); | |
1631 | goto finished; | |
1632 | } | |
1633 | ||
1634 | /* Make vty for configuration file. */ | |
1635 | file_vty = vty_new(); | |
1636 | file_vty->wfd = fd; | |
1637 | file_vty->type = VTY_FILE; | |
1638 | ||
1639 | /* Config file header print. */ | |
1640 | vty_out(file_vty, "!\n! Zebra configuration saved from vty\n! "); | |
1641 | vty_time_print(file_vty, 1); | |
1642 | vty_out(file_vty, "!\n"); | |
1643 | vty_write_config(file_vty); | |
1644 | vty_close(file_vty); | |
1645 | ||
1646 | if (stat(config_file, &conf_stat) >= 0) { | |
1647 | if (unlink(config_file_sav) != 0) | |
1648 | if (errno != ENOENT) { | |
1649 | vty_out(vty, | |
1650 | "Can't unlink backup configuration file %s.\n", | |
1651 | config_file_sav); | |
1652 | goto finished; | |
1653 | } | |
1654 | if (link(config_file, config_file_sav) != 0) { | |
1655 | vty_out(vty, | |
1656 | "Can't backup old configuration file %s.\n", | |
1657 | config_file_sav); | |
1658 | goto finished; | |
1659 | } | |
1660 | if (dirfd >= 0) | |
1661 | fsync(dirfd); | |
1662 | } | |
1663 | if (rename(config_file_tmp, config_file) != 0) { | |
1664 | vty_out(vty, "Can't save configuration file %s.\n", | |
1665 | config_file); | |
1666 | goto finished; | |
1667 | } | |
1668 | if (dirfd >= 0) | |
1669 | fsync(dirfd); | |
1670 | ||
1671 | vty_out(vty, "Configuration saved to %s\n", config_file); | |
1672 | ret = CMD_SUCCESS; | |
05865c90 | 1673 | |
1674 | finished: | |
d62a17ae | 1675 | if (ret != CMD_SUCCESS) |
1676 | unlink(config_file_tmp); | |
1677 | if (dirfd >= 0) | |
1678 | close(dirfd); | |
1679 | XFREE(MTYPE_TMP, config_file_tmp); | |
1680 | XFREE(MTYPE_TMP, config_file_sav); | |
1681 | return ret; | |
718e3744 | 1682 | } |
1683 | ||
f806f29c | 1684 | /* Write current configuration into file. */ |
1685 | ||
1686 | DEFUN (config_write, | |
1687 | config_write_cmd, | |
1688 | "write [<file|memory|terminal>]", | |
1689 | "Write running configuration to memory, network, or terminal\n" | |
1690 | "Write to configuration file\n" | |
1691 | "Write configuration currently in memory\n" | |
1692 | "Write configuration to terminal\n") | |
1693 | { | |
1694 | const int idx_type = 1; | |
1695 | ||
1696 | // if command was 'write terminal' or 'write memory' | |
1697 | if (argc == 2 && (!strcmp(argv[idx_type]->text, "terminal"))) { | |
1698 | return vty_write_config(vty); | |
1699 | } | |
1700 | ||
1701 | return file_write_config(vty); | |
1702 | } | |
1703 | ||
d862bffb QY |
1704 | /* ALIAS_FIXME for 'write <terminal|memory>' */ |
1705 | DEFUN (show_running_config, | |
1706 | show_running_config_cmd, | |
1707 | "show running-config", | |
1708 | SHOW_STR | |
f806f29c | 1709 | "running configuration (same as write terminal)\n") |
d862bffb | 1710 | { |
f806f29c | 1711 | return vty_write_config(vty); |
d862bffb | 1712 | } |
718e3744 | 1713 | |
d862bffb QY |
1714 | /* ALIAS_FIXME for 'write file' */ |
1715 | DEFUN (copy_runningconf_startupconf, | |
1716 | copy_runningconf_startupconf_cmd, | |
1717 | "copy running-config startup-config", | |
1718 | "Copy configuration\n" | |
1719 | "Copy running config to... \n" | |
f806f29c | 1720 | "Copy running config to startup config (same as write file/memory)\n") |
d862bffb | 1721 | { |
f806f29c | 1722 | return file_write_config(vty); |
d862bffb QY |
1723 | } |
1724 | /** -- **/ | |
718e3744 | 1725 | |
1726 | /* Write startup configuration into the terminal. */ | |
1727 | DEFUN (show_startup_config, | |
1728 | show_startup_config_cmd, | |
1729 | "show startup-config", | |
1730 | SHOW_STR | |
d0bfb22c | 1731 | "Contents of startup configuration\n") |
718e3744 | 1732 | { |
d62a17ae | 1733 | char buf[BUFSIZ]; |
1734 | FILE *confp; | |
718e3744 | 1735 | |
d62a17ae | 1736 | if (host.noconfig) |
1737 | return CMD_SUCCESS; | |
1738 | if (host.config == NULL) | |
1739 | return CMD_WARNING; | |
87f44e2f | 1740 | |
d62a17ae | 1741 | confp = fopen(host.config, "r"); |
1742 | if (confp == NULL) { | |
1743 | vty_out(vty, "Can't open configuration file [%s] due to '%s'\n", | |
1744 | host.config, safe_strerror(errno)); | |
1745 | return CMD_WARNING; | |
1746 | } | |
718e3744 | 1747 | |
d62a17ae | 1748 | while (fgets(buf, BUFSIZ, confp)) { |
1749 | char *cp = buf; | |
718e3744 | 1750 | |
d62a17ae | 1751 | while (*cp != '\r' && *cp != '\n' && *cp != '\0') |
1752 | cp++; | |
1753 | *cp = '\0'; | |
718e3744 | 1754 | |
d62a17ae | 1755 | vty_out(vty, "%s\n", buf); |
1756 | } | |
718e3744 | 1757 | |
d62a17ae | 1758 | fclose(confp); |
718e3744 | 1759 | |
d62a17ae | 1760 | return CMD_SUCCESS; |
718e3744 | 1761 | } |
1762 | ||
6b3ee3a0 MK |
1763 | int cmd_domainname_set(const char *domainname) |
1764 | { | |
1765 | XFREE(MTYPE_HOST, host.domainname); | |
1766 | host.domainname = domainname ? XSTRDUP(MTYPE_HOST, domainname) : NULL; | |
1767 | return CMD_SUCCESS; | |
1768 | } | |
1769 | ||
1770 | /* Hostname configuration */ | |
60466a63 QY |
1771 | DEFUN(config_domainname, |
1772 | domainname_cmd, | |
1773 | "domainname WORD", | |
1774 | "Set system's domain name\n" | |
1775 | "This system's domain name\n") | |
6b3ee3a0 MK |
1776 | { |
1777 | struct cmd_token *word = argv[1]; | |
1778 | ||
fefa5e0f | 1779 | if (!isalpha((unsigned char)word->arg[0])) { |
6b3ee3a0 MK |
1780 | vty_out(vty, "Please specify string starting with alphabet\n"); |
1781 | return CMD_WARNING_CONFIG_FAILED; | |
1782 | } | |
1783 | ||
1784 | return cmd_domainname_set(word->arg); | |
1785 | } | |
1786 | ||
60466a63 QY |
1787 | DEFUN(config_no_domainname, |
1788 | no_domainname_cmd, | |
1789 | "no domainname [DOMAINNAME]", | |
1790 | NO_STR | |
1791 | "Reset system's domain name\n" | |
1792 | "domain name of this router\n") | |
6b3ee3a0 MK |
1793 | { |
1794 | return cmd_domainname_set(NULL); | |
1795 | } | |
1796 | ||
d62a17ae | 1797 | int cmd_hostname_set(const char *hostname) |
bff9c3e9 | 1798 | { |
d62a17ae | 1799 | XFREE(MTYPE_HOST, host.name); |
1800 | host.name = hostname ? XSTRDUP(MTYPE_HOST, hostname) : NULL; | |
1801 | return CMD_SUCCESS; | |
bff9c3e9 DL |
1802 | } |
1803 | ||
718e3744 | 1804 | /* Hostname configuration */ |
d0bfb22c | 1805 | DEFUN (config_hostname, |
718e3744 | 1806 | hostname_cmd, |
1807 | "hostname WORD", | |
1808 | "Set system's network name\n" | |
1809 | "This system's network name\n") | |
1810 | { | |
d62a17ae | 1811 | struct cmd_token *word = argv[1]; |
d0bfb22c | 1812 | |
fefa5e0f | 1813 | if (!isalnum((unsigned char)word->arg[0])) { |
63e653a2 LK |
1814 | vty_out(vty, |
1815 | "Please specify string starting with alphabet or number\n"); | |
1816 | return CMD_WARNING_CONFIG_FAILED; | |
1817 | } | |
1818 | ||
1819 | /* With reference to RFC 1123 Section 2.1 */ | |
1820 | if (strlen(word->arg) > HOSTNAME_LEN) { | |
1821 | vty_out(vty, "Hostname length should be less than %d chars\n", | |
1822 | HOSTNAME_LEN); | |
d62a17ae | 1823 | return CMD_WARNING_CONFIG_FAILED; |
1824 | } | |
718e3744 | 1825 | |
d62a17ae | 1826 | return cmd_hostname_set(word->arg); |
718e3744 | 1827 | } |
1828 | ||
d0bfb22c | 1829 | DEFUN (config_no_hostname, |
718e3744 | 1830 | no_hostname_cmd, |
1831 | "no hostname [HOSTNAME]", | |
1832 | NO_STR | |
1833 | "Reset system's network name\n" | |
1834 | "Host name of this router\n") | |
1835 | { | |
d62a17ae | 1836 | return cmd_hostname_set(NULL); |
718e3744 | 1837 | } |
1838 | ||
1839 | /* VTY interface password set. */ | |
f412b39a DW |
1840 | DEFUN (config_password, |
1841 | password_cmd, | |
98463e0a | 1842 | "password [(8-8)] WORD", |
322e2d5c | 1843 | "Modify the terminal connection password\n" |
718e3744 | 1844 | "Specifies a HIDDEN password will follow\n" |
d0bfb22c | 1845 | "The password string\n") |
718e3744 | 1846 | { |
d62a17ae | 1847 | int idx_8 = 1; |
1848 | int idx_word = 2; | |
1849 | if (argc == 3) // '8' was specified | |
1850 | { | |
1851 | if (host.password) | |
1852 | XFREE(MTYPE_HOST, host.password); | |
1853 | host.password = NULL; | |
1854 | if (host.password_encrypt) | |
1855 | XFREE(MTYPE_HOST, host.password_encrypt); | |
1856 | host.password_encrypt = | |
1857 | XSTRDUP(MTYPE_HOST, argv[idx_word]->arg); | |
1858 | return CMD_SUCCESS; | |
1859 | } | |
1860 | ||
fefa5e0f | 1861 | if (!isalnum((unsigned char)argv[idx_8]->arg[0])) { |
d62a17ae | 1862 | vty_out(vty, |
1863 | "Please specify string starting with alphanumeric\n"); | |
1864 | return CMD_WARNING_CONFIG_FAILED; | |
1865 | } | |
1866 | ||
1867 | if (host.password) | |
1868 | XFREE(MTYPE_HOST, host.password); | |
1869 | host.password = NULL; | |
1870 | ||
1871 | if (host.encrypt) { | |
1872 | if (host.password_encrypt) | |
1873 | XFREE(MTYPE_HOST, host.password_encrypt); | |
1874 | host.password_encrypt = | |
1875 | XSTRDUP(MTYPE_HOST, zencrypt(argv[idx_8]->arg)); | |
1876 | } else | |
1877 | host.password = XSTRDUP(MTYPE_HOST, argv[idx_8]->arg); | |
1878 | ||
1879 | return CMD_SUCCESS; | |
718e3744 | 1880 | } |
1881 | ||
322e2d5c PM |
1882 | /* VTY interface password delete. */ |
1883 | DEFUN (no_config_password, | |
1884 | no_password_cmd, | |
1885 | "no password", | |
1886 | NO_STR | |
1887 | "Modify the terminal connection password\n") | |
1888 | { | |
1889 | bool warned = false; | |
1890 | ||
1891 | if (host.password) { | |
eb83f7ce | 1892 | if (!vty_shell_serv(vty)) { |
4911ca9c | 1893 | vty_out(vty, NO_PASSWD_CMD_WARNING); |
eb83f7ce PM |
1894 | warned = true; |
1895 | } | |
322e2d5c PM |
1896 | XFREE(MTYPE_HOST, host.password); |
1897 | } | |
1898 | host.password = NULL; | |
1899 | ||
1900 | if (host.password_encrypt) { | |
eb83f7ce | 1901 | if (!warned && !vty_shell_serv(vty)) |
4911ca9c | 1902 | vty_out(vty, NO_PASSWD_CMD_WARNING); |
322e2d5c PM |
1903 | XFREE(MTYPE_HOST, host.password_encrypt); |
1904 | } | |
1905 | host.password_encrypt = NULL; | |
1906 | ||
1907 | return CMD_SUCCESS; | |
1908 | } | |
1909 | ||
718e3744 | 1910 | /* VTY enable password set. */ |
f412b39a DW |
1911 | DEFUN (config_enable_password, |
1912 | enable_password_cmd, | |
98463e0a | 1913 | "enable password [(8-8)] WORD", |
718e3744 | 1914 | "Modify enable password parameters\n" |
1915 | "Assign the privileged level password\n" | |
1916 | "Specifies a HIDDEN password will follow\n" | |
718e3744 | 1917 | "The HIDDEN 'enable' password string\n") |
1918 | { | |
d62a17ae | 1919 | int idx_8 = 2; |
1920 | int idx_word = 3; | |
1921 | ||
1922 | /* Crypt type is specified. */ | |
1923 | if (argc == 4) { | |
1924 | if (argv[idx_8]->arg[0] == '8') { | |
1925 | if (host.enable) | |
1926 | XFREE(MTYPE_HOST, host.enable); | |
1927 | host.enable = NULL; | |
1928 | ||
1929 | if (host.enable_encrypt) | |
1930 | XFREE(MTYPE_HOST, host.enable_encrypt); | |
1931 | host.enable_encrypt = | |
1932 | XSTRDUP(MTYPE_HOST, argv[idx_word]->arg); | |
1933 | ||
1934 | return CMD_SUCCESS; | |
1935 | } else { | |
1936 | vty_out(vty, "Unknown encryption type.\n"); | |
1937 | return CMD_WARNING_CONFIG_FAILED; | |
1938 | } | |
1939 | } | |
1940 | ||
fefa5e0f | 1941 | if (!isalnum((unsigned char)argv[idx_8]->arg[0])) { |
d62a17ae | 1942 | vty_out(vty, |
1943 | "Please specify string starting with alphanumeric\n"); | |
1944 | return CMD_WARNING_CONFIG_FAILED; | |
1945 | } | |
1946 | ||
1947 | if (host.enable) | |
1948 | XFREE(MTYPE_HOST, host.enable); | |
1949 | host.enable = NULL; | |
1950 | ||
1951 | /* Plain password input. */ | |
1952 | if (host.encrypt) { | |
1953 | if (host.enable_encrypt) | |
1954 | XFREE(MTYPE_HOST, host.enable_encrypt); | |
1955 | host.enable_encrypt = | |
1956 | XSTRDUP(MTYPE_HOST, zencrypt(argv[idx_8]->arg)); | |
1957 | } else | |
1958 | host.enable = XSTRDUP(MTYPE_HOST, argv[idx_8]->arg); | |
1959 | ||
1960 | return CMD_SUCCESS; | |
718e3744 | 1961 | } |
1962 | ||
718e3744 | 1963 | /* VTY enable password delete. */ |
f412b39a DW |
1964 | DEFUN (no_config_enable_password, |
1965 | no_enable_password_cmd, | |
718e3744 | 1966 | "no enable password", |
1967 | NO_STR | |
1968 | "Modify enable password parameters\n" | |
1969 | "Assign the privileged level password\n") | |
1970 | { | |
322e2d5c PM |
1971 | bool warned = false; |
1972 | ||
1973 | if (host.enable) { | |
eb83f7ce | 1974 | if (!vty_shell_serv(vty)) { |
4911ca9c | 1975 | vty_out(vty, NO_PASSWD_CMD_WARNING); |
eb83f7ce PM |
1976 | warned = true; |
1977 | } | |
d62a17ae | 1978 | XFREE(MTYPE_HOST, host.enable); |
322e2d5c | 1979 | } |
d62a17ae | 1980 | host.enable = NULL; |
718e3744 | 1981 | |
322e2d5c | 1982 | if (host.enable_encrypt) { |
eb83f7ce | 1983 | if (!warned && !vty_shell_serv(vty)) |
4911ca9c | 1984 | vty_out(vty, NO_PASSWD_CMD_WARNING); |
d62a17ae | 1985 | XFREE(MTYPE_HOST, host.enable_encrypt); |
322e2d5c | 1986 | } |
d62a17ae | 1987 | host.enable_encrypt = NULL; |
718e3744 | 1988 | |
d62a17ae | 1989 | return CMD_SUCCESS; |
718e3744 | 1990 | } |
d0bfb22c | 1991 | |
718e3744 | 1992 | DEFUN (service_password_encrypt, |
1993 | service_password_encrypt_cmd, | |
1994 | "service password-encryption", | |
1995 | "Set up miscellaneous service\n" | |
1996 | "Enable encrypted passwords\n") | |
1997 | { | |
d62a17ae | 1998 | if (host.encrypt) |
1999 | return CMD_SUCCESS; | |
718e3744 | 2000 | |
d62a17ae | 2001 | host.encrypt = 1; |
718e3744 | 2002 | |
d62a17ae | 2003 | if (host.password) { |
2004 | if (host.password_encrypt) | |
2005 | XFREE(MTYPE_HOST, host.password_encrypt); | |
2006 | host.password_encrypt = | |
2007 | XSTRDUP(MTYPE_HOST, zencrypt(host.password)); | |
2008 | } | |
2009 | if (host.enable) { | |
2010 | if (host.enable_encrypt) | |
2011 | XFREE(MTYPE_HOST, host.enable_encrypt); | |
2012 | host.enable_encrypt = | |
2013 | XSTRDUP(MTYPE_HOST, zencrypt(host.enable)); | |
2014 | } | |
718e3744 | 2015 | |
d62a17ae | 2016 | return CMD_SUCCESS; |
718e3744 | 2017 | } |
2018 | ||
2019 | DEFUN (no_service_password_encrypt, | |
2020 | no_service_password_encrypt_cmd, | |
2021 | "no service password-encryption", | |
2022 | NO_STR | |
2023 | "Set up miscellaneous service\n" | |
2024 | "Enable encrypted passwords\n") | |
2025 | { | |
d62a17ae | 2026 | if (!host.encrypt) |
2027 | return CMD_SUCCESS; | |
718e3744 | 2028 | |
d62a17ae | 2029 | host.encrypt = 0; |
718e3744 | 2030 | |
d62a17ae | 2031 | if (host.password_encrypt) |
2032 | XFREE(MTYPE_HOST, host.password_encrypt); | |
2033 | host.password_encrypt = NULL; | |
718e3744 | 2034 | |
d62a17ae | 2035 | if (host.enable_encrypt) |
2036 | XFREE(MTYPE_HOST, host.enable_encrypt); | |
2037 | host.enable_encrypt = NULL; | |
718e3744 | 2038 | |
d62a17ae | 2039 | return CMD_SUCCESS; |
718e3744 | 2040 | } |
2041 | ||
f412b39a DW |
2042 | DEFUN (config_terminal_length, |
2043 | config_terminal_length_cmd, | |
d0bfb22c | 2044 | "terminal length (0-512)", |
718e3744 | 2045 | "Set terminal line parameters\n" |
2046 | "Set number of lines on a screen\n" | |
2047 | "Number of lines on screen (0 for no pausing)\n") | |
2048 | { | |
d62a17ae | 2049 | int idx_number = 2; |
718e3744 | 2050 | |
d62a17ae | 2051 | vty->lines = atoi(argv[idx_number]->arg); |
718e3744 | 2052 | |
d62a17ae | 2053 | return CMD_SUCCESS; |
718e3744 | 2054 | } |
2055 | ||
f412b39a DW |
2056 | DEFUN (config_terminal_no_length, |
2057 | config_terminal_no_length_cmd, | |
718e3744 | 2058 | "terminal no length", |
2059 | "Set terminal line parameters\n" | |
2060 | NO_STR | |
2061 | "Set number of lines on a screen\n") | |
2062 | { | |
d62a17ae | 2063 | vty->lines = -1; |
2064 | return CMD_SUCCESS; | |
718e3744 | 2065 | } |
2066 | ||
f412b39a DW |
2067 | DEFUN (service_terminal_length, |
2068 | service_terminal_length_cmd, | |
d0bfb22c | 2069 | "service terminal-length (0-512)", |
718e3744 | 2070 | "Set up miscellaneous service\n" |
2071 | "System wide terminal length configuration\n" | |
2072 | "Number of lines of VTY (0 means no line control)\n") | |
2073 | { | |
d62a17ae | 2074 | int idx_number = 2; |
718e3744 | 2075 | |
d62a17ae | 2076 | host.lines = atoi(argv[idx_number]->arg); |
718e3744 | 2077 | |
d62a17ae | 2078 | return CMD_SUCCESS; |
718e3744 | 2079 | } |
2080 | ||
f412b39a DW |
2081 | DEFUN (no_service_terminal_length, |
2082 | no_service_terminal_length_cmd, | |
d0bfb22c | 2083 | "no service terminal-length [(0-512)]", |
718e3744 | 2084 | NO_STR |
2085 | "Set up miscellaneous service\n" | |
2086 | "System wide terminal length configuration\n" | |
2087 | "Number of lines of VTY (0 means no line control)\n") | |
2088 | { | |
d62a17ae | 2089 | host.lines = -1; |
2090 | return CMD_SUCCESS; | |
718e3744 | 2091 | } |
2092 | ||
2885f72d | 2093 | DEFUN_HIDDEN (do_echo, |
d0bfb22c QY |
2094 | echo_cmd, |
2095 | "echo MESSAGE...", | |
2096 | "Echo a message back to the vty\n" | |
2097 | "The message to echo\n") | |
2885f72d | 2098 | { |
d62a17ae | 2099 | char *message; |
2885f72d | 2100 | |
d62a17ae | 2101 | vty_out(vty, "%s\n", |
2102 | ((message = argv_concat(argv, argc, 1)) ? message : "")); | |
2103 | if (message) | |
2104 | XFREE(MTYPE_TMP, message); | |
2105 | return CMD_SUCCESS; | |
2885f72d | 2106 | } |
2107 | ||
274a4a44 | 2108 | DEFUN (config_logmsg, |
2109 | config_logmsg_cmd, | |
199d90a1 | 2110 | "logmsg <emergencies|alerts|critical|errors|warnings|notifications|informational|debugging> MESSAGE...", |
274a4a44 | 2111 | "Send a message to enabled logging destinations\n" |
2112 | LOG_LEVEL_DESC | |
2113 | "The message to send\n") | |
2114 | { | |
d62a17ae | 2115 | int idx_log_level = 1; |
2116 | int idx_message = 2; | |
2117 | int level; | |
2118 | char *message; | |
274a4a44 | 2119 | |
0bdeb5e5 DL |
2120 | level = log_level_match(argv[idx_log_level]->arg); |
2121 | if (level == ZLOG_DISABLED) | |
d62a17ae | 2122 | return CMD_ERR_NO_MATCH; |
274a4a44 | 2123 | |
d62a17ae | 2124 | zlog(level, "%s", |
2125 | ((message = argv_concat(argv, argc, idx_message)) ? message : "")); | |
2126 | if (message) | |
2127 | XFREE(MTYPE_TMP, message); | |
65efcfce | 2128 | |
d62a17ae | 2129 | return CMD_SUCCESS; |
274a4a44 | 2130 | } |
2131 | ||
9eed278b DL |
2132 | DEFUN (debug_memstats, |
2133 | debug_memstats_cmd, | |
2134 | "[no] debug memstats-at-exit", | |
2135 | NO_STR | |
2136 | DEBUG_STR | |
2137 | "Print memory type statistics at exit\n") | |
2138 | { | |
2139 | debug_memstats_at_exit = !!strcmp(argv[0]->text, "no"); | |
2140 | return CMD_SUCCESS; | |
2141 | } | |
2142 | ||
d62a17ae | 2143 | int cmd_banner_motd_file(const char *file) |
7cfc61d3 | 2144 | { |
d62a17ae | 2145 | int success = CMD_SUCCESS; |
2146 | char p[PATH_MAX]; | |
2147 | char *rpath; | |
2148 | char *in; | |
7cfc61d3 | 2149 | |
d62a17ae | 2150 | rpath = realpath(file, p); |
2151 | if (!rpath) | |
2152 | return CMD_ERR_NO_FILE; | |
2153 | in = strstr(rpath, SYSCONFDIR); | |
2154 | if (in == rpath) { | |
0a22ddfb | 2155 | XFREE(MTYPE_HOST, host.motdfile); |
d62a17ae | 2156 | host.motdfile = XSTRDUP(MTYPE_HOST, file); |
2157 | } else | |
2158 | success = CMD_WARNING_CONFIG_FAILED; | |
1ee08155 | 2159 | |
d62a17ae | 2160 | return success; |
7cfc61d3 DS |
2161 | } |
2162 | ||
19d61463 DA |
2163 | void cmd_banner_motd_line(const char *line) |
2164 | { | |
e1b36e13 | 2165 | XFREE(MTYPE_HOST, host.motd); |
19d61463 DA |
2166 | host.motd = XSTRDUP(MTYPE_HOST, line); |
2167 | } | |
2168 | ||
3b0c5d9a | 2169 | DEFUN (banner_motd_file, |
2170 | banner_motd_file_cmd, | |
4d833e55 | 2171 | "banner motd file FILE", |
3b0c5d9a | 2172 | "Set banner\n" |
2173 | "Banner for motd\n" | |
2174 | "Banner from a file\n" | |
2175 | "Filename\n") | |
2176 | { | |
d62a17ae | 2177 | int idx_file = 3; |
2178 | const char *filename = argv[idx_file]->arg; | |
2179 | int cmd = cmd_banner_motd_file(filename); | |
1ee08155 | 2180 | |
d62a17ae | 2181 | if (cmd == CMD_ERR_NO_FILE) |
2182 | vty_out(vty, "%s does not exist", filename); | |
2183 | else if (cmd == CMD_WARNING_CONFIG_FAILED) | |
2184 | vty_out(vty, "%s must be in %s", filename, SYSCONFDIR); | |
1ee08155 | 2185 | |
d62a17ae | 2186 | return cmd; |
3b0c5d9a | 2187 | } |
718e3744 | 2188 | |
19d61463 DA |
2189 | DEFUN (banner_motd_line, |
2190 | banner_motd_line_cmd, | |
2191 | "banner motd line LINE...", | |
2192 | "Set banner\n" | |
2193 | "Banner for motd\n" | |
2194 | "Banner from an input\n" | |
2195 | "Text\n") | |
2196 | { | |
2197 | int idx = 0; | |
2198 | char *motd; | |
2199 | ||
2200 | argv_find(argv, argc, "LINE", &idx); | |
2201 | motd = argv_concat(argv, argc, idx); | |
2202 | ||
2203 | cmd_banner_motd_line(motd); | |
2204 | XFREE(MTYPE_TMP, motd); | |
2205 | ||
2206 | return CMD_SUCCESS; | |
2207 | } | |
2208 | ||
718e3744 | 2209 | DEFUN (banner_motd_default, |
2210 | banner_motd_default_cmd, | |
2211 | "banner motd default", | |
2212 | "Set banner string\n" | |
2213 | "Strings for motd\n" | |
2214 | "Default string\n") | |
2215 | { | |
19d61463 | 2216 | cmd_banner_motd_line(FRR_DEFAULT_MOTD); |
d62a17ae | 2217 | return CMD_SUCCESS; |
718e3744 | 2218 | } |
2219 | ||
2220 | DEFUN (no_banner_motd, | |
2221 | no_banner_motd_cmd, | |
2222 | "no banner motd", | |
2223 | NO_STR | |
2224 | "Set banner string\n" | |
2225 | "Strings for motd\n") | |
2226 | { | |
d62a17ae | 2227 | host.motd = NULL; |
2228 | if (host.motdfile) | |
2229 | XFREE(MTYPE_HOST, host.motdfile); | |
2230 | host.motdfile = NULL; | |
2231 | return CMD_SUCCESS; | |
718e3744 | 2232 | } |
2233 | ||
a83a5331 QY |
2234 | DEFUN(find, |
2235 | find_cmd, | |
767f67a4 | 2236 | "find REGEX...", |
68912a20 QY |
2237 | "Find CLI command matching a regular expression\n" |
2238 | "Search pattern (POSIX regex)\n") | |
a83a5331 | 2239 | { |
cf6c83e7 QY |
2240 | const struct cmd_node *node; |
2241 | const struct cmd_element *cli; | |
2242 | vector clis; | |
a83a5331 | 2243 | |
68912a20 QY |
2244 | regex_t exp = {}; |
2245 | ||
767f67a4 | 2246 | char *pattern = argv_concat(argv, argc, 1); |
68912a20 | 2247 | int cr = regcomp(&exp, pattern, REG_NOSUB | REG_EXTENDED); |
767f67a4 | 2248 | XFREE(MTYPE_TMP, pattern); |
68912a20 QY |
2249 | |
2250 | if (cr != 0) { | |
2251 | switch (cr) { | |
2252 | case REG_BADBR: | |
2253 | vty_out(vty, "%% Invalid {...} expression\n"); | |
2254 | break; | |
2255 | case REG_BADRPT: | |
2256 | vty_out(vty, "%% Bad repetition operator\n"); | |
2257 | break; | |
2258 | case REG_BADPAT: | |
2259 | vty_out(vty, "%% Regex syntax error\n"); | |
2260 | break; | |
2261 | case REG_ECOLLATE: | |
2262 | vty_out(vty, "%% Invalid collating element\n"); | |
2263 | break; | |
2264 | case REG_ECTYPE: | |
2265 | vty_out(vty, "%% Invalid character class name\n"); | |
2266 | break; | |
2267 | case REG_EESCAPE: | |
2268 | vty_out(vty, | |
2269 | "%% Regex ended with escape character (\\)\n"); | |
2270 | break; | |
2271 | case REG_ESUBREG: | |
2272 | vty_out(vty, | |
2273 | "%% Invalid number in \\digit construction\n"); | |
2274 | break; | |
2275 | case REG_EBRACK: | |
2276 | vty_out(vty, "%% Unbalanced square brackets\n"); | |
2277 | break; | |
2278 | case REG_EPAREN: | |
2279 | vty_out(vty, "%% Unbalanced parentheses\n"); | |
2280 | break; | |
2281 | case REG_EBRACE: | |
2282 | vty_out(vty, "%% Unbalanced braces\n"); | |
2283 | break; | |
2284 | case REG_ERANGE: | |
2285 | vty_out(vty, | |
2286 | "%% Invalid endpoint in range expression\n"); | |
2287 | break; | |
2288 | case REG_ESPACE: | |
2289 | vty_out(vty, "%% Failed to compile (out of memory)\n"); | |
2290 | break; | |
2291 | } | |
2292 | ||
2293 | goto done; | |
2294 | } | |
2295 | ||
2296 | ||
a83a5331 | 2297 | for (unsigned int i = 0; i < vector_active(cmdvec); i++) { |
cf6c83e7 | 2298 | node = vector_slot(cmdvec, i); |
a83a5331 QY |
2299 | if (!node) |
2300 | continue; | |
cf6c83e7 | 2301 | clis = node->cmd_vector; |
a83a5331 | 2302 | for (unsigned int j = 0; j < vector_active(clis); j++) { |
cf6c83e7 | 2303 | cli = vector_slot(clis, j); |
68912a20 QY |
2304 | |
2305 | if (regexec(&exp, cli->string, 0, NULL, 0) == 0) | |
cf6c83e7 | 2306 | vty_out(vty, " (%s) %s\n", |
f4b8291f | 2307 | node->name, cli->string); |
a83a5331 QY |
2308 | } |
2309 | } | |
2310 | ||
68912a20 QY |
2311 | done: |
2312 | regfree(&exp); | |
a83a5331 QY |
2313 | return CMD_SUCCESS; |
2314 | } | |
2315 | ||
fa22080d | 2316 | #if defined(DEV_BUILD) && defined(HAVE_SCRIPTING) |
5f98c815 QY |
2317 | DEFUN(script, |
2318 | script_cmd, | |
2319 | "script SCRIPT", | |
2320 | "Test command - execute a script\n" | |
2321 | "Script name (same as filename in /etc/frr/scripts/\n") | |
2322 | { | |
3d19ffc5 | 2323 | struct prefix p; |
45e56ec4 DS |
2324 | |
2325 | (void)str2prefix("1.2.3.4/24", &p); | |
3d19ffc5 QY |
2326 | |
2327 | struct frrscript *fs = frrscript_load(argv[1]->arg, NULL); | |
5f98c815 | 2328 | |
3d19ffc5 QY |
2329 | if (fs == NULL) { |
2330 | vty_out(vty, "Script '/etc/frr/scripts/%s.lua' not found\n", | |
2331 | argv[1]->arg); | |
2332 | } else { | |
f869ab17 | 2333 | int ret = frrscript_call(fs, NULL); |
3d19ffc5 QY |
2334 | vty_out(vty, "Script result: %d\n", ret); |
2335 | } | |
5f98c815 QY |
2336 | |
2337 | return CMD_SUCCESS; | |
2338 | } | |
2339 | #endif | |
2340 | ||
718e3744 | 2341 | /* Set config filename. Called from vty.c */ |
d62a17ae | 2342 | void host_config_set(const char *filename) |
718e3744 | 2343 | { |
0a22ddfb | 2344 | XFREE(MTYPE_HOST, host.config); |
d62a17ae | 2345 | host.config = XSTRDUP(MTYPE_HOST, filename); |
718e3744 | 2346 | } |
2347 | ||
d62a17ae | 2348 | const char *host_config_get(void) |
57387fb2 | 2349 | { |
d62a17ae | 2350 | return host.config; |
57387fb2 CF |
2351 | } |
2352 | ||
d62a17ae | 2353 | void install_default(enum node_type node) |
718e3744 | 2354 | { |
01485adb DL |
2355 | _install_element(node, &config_exit_cmd); |
2356 | _install_element(node, &config_quit_cmd); | |
2357 | _install_element(node, &config_end_cmd); | |
2358 | _install_element(node, &config_help_cmd); | |
2359 | _install_element(node, &config_list_cmd); | |
2360 | _install_element(node, &show_cli_graph_cmd); | |
2361 | _install_element(node, &find_cmd); | |
718e3744 | 2362 | |
01485adb DL |
2363 | _install_element(node, &config_write_cmd); |
2364 | _install_element(node, &show_running_config_cmd); | |
7f059ea6 | 2365 | |
01485adb | 2366 | _install_element(node, &autocomplete_cmd); |
1c2facd1 RW |
2367 | |
2368 | nb_cli_install_default(node); | |
718e3744 | 2369 | } |
2370 | ||
87f44e2f DL |
2371 | /* Initialize command interface. Install basic nodes and commands. |
2372 | * | |
2373 | * terminal = 0 -- vtysh / no logging, no config control | |
2374 | * terminal = 1 -- normal daemon | |
9473e340 | 2375 | * terminal = -1 -- watchfrr / no logging, but minimal config control */ |
d62a17ae | 2376 | void cmd_init(int terminal) |
2377 | { | |
419cd5a0 MK |
2378 | struct utsname names; |
2379 | ||
419cd5a0 | 2380 | uname(&names); |
d62a17ae | 2381 | qobj_init(); |
2382 | ||
fe6b47b9 QY |
2383 | /* register command preprocessors */ |
2384 | hook_register(cmd_execute, handle_pipe_action); | |
2385 | hook_register(cmd_execute_done, handle_pipe_action_done); | |
2386 | ||
d62a17ae | 2387 | varhandlers = list_new(); |
2388 | ||
2389 | /* Allocate initial top vector of commands. */ | |
2390 | cmdvec = vector_init(VECTOR_MIN_SIZE); | |
2391 | ||
2392 | /* Default host value settings. */ | |
419cd5a0 MK |
2393 | host.name = XSTRDUP(MTYPE_HOST, names.nodename); |
2394 | #ifdef HAVE_STRUCT_UTSNAME_DOMAINNAME | |
6b3ee3a0 MK |
2395 | if ((strcmp(names.domainname, "(none)") == 0)) |
2396 | host.domainname = NULL; | |
2397 | else | |
2398 | host.domainname = XSTRDUP(MTYPE_HOST, names.domainname); | |
419cd5a0 MK |
2399 | #else |
2400 | host.domainname = NULL; | |
2401 | #endif | |
d62a17ae | 2402 | host.password = NULL; |
2403 | host.enable = NULL; | |
d62a17ae | 2404 | host.config = NULL; |
2405 | host.noconfig = (terminal < 0); | |
2406 | host.lines = -1; | |
19d61463 | 2407 | cmd_banner_motd_line(FRR_DEFAULT_MOTD); |
d62a17ae | 2408 | host.motdfile = NULL; |
2409 | ||
2410 | /* Install top nodes. */ | |
612c2c15 DL |
2411 | install_node(&view_node); |
2412 | install_node(&enable_node); | |
2413 | install_node(&auth_node); | |
2414 | install_node(&auth_enable_node); | |
2415 | install_node(&config_node); | |
d62a17ae | 2416 | |
2417 | /* Each node's basic commands. */ | |
2418 | install_element(VIEW_NODE, &show_version_cmd); | |
a83a5331 QY |
2419 | install_element(ENABLE_NODE, &show_startup_config_cmd); |
2420 | ||
d62a17ae | 2421 | if (terminal) { |
85a6806d MS |
2422 | install_element(ENABLE_NODE, &debug_memstats_cmd); |
2423 | ||
d62a17ae | 2424 | install_element(VIEW_NODE, &config_list_cmd); |
2425 | install_element(VIEW_NODE, &config_exit_cmd); | |
2426 | install_element(VIEW_NODE, &config_quit_cmd); | |
2427 | install_element(VIEW_NODE, &config_help_cmd); | |
2428 | install_element(VIEW_NODE, &config_enable_cmd); | |
2429 | install_element(VIEW_NODE, &config_terminal_length_cmd); | |
2430 | install_element(VIEW_NODE, &config_terminal_no_length_cmd); | |
d62a17ae | 2431 | install_element(VIEW_NODE, &show_commandtree_cmd); |
2432 | install_element(VIEW_NODE, &echo_cmd); | |
2433 | install_element(VIEW_NODE, &autocomplete_cmd); | |
a83a5331 | 2434 | install_element(VIEW_NODE, &find_cmd); |
fa22080d | 2435 | #if defined(DEV_BUILD) && defined(HAVE_SCRIPTING) |
3d19ffc5 QY |
2436 | install_element(VIEW_NODE, &script_cmd); |
2437 | #endif | |
2438 | ||
d62a17ae | 2439 | |
d62a17ae | 2440 | install_element(ENABLE_NODE, &config_end_cmd); |
2441 | install_element(ENABLE_NODE, &config_disable_cmd); | |
2442 | install_element(ENABLE_NODE, &config_terminal_cmd); | |
2443 | install_element(ENABLE_NODE, ©_runningconf_startupconf_cmd); | |
2444 | install_element(ENABLE_NODE, &config_write_cmd); | |
2445 | install_element(ENABLE_NODE, &show_running_config_cmd); | |
d62a17ae | 2446 | install_element(ENABLE_NODE, &config_logmsg_cmd); |
a83a5331 | 2447 | |
d62a17ae | 2448 | install_default(CONFIG_NODE); |
2449 | ||
2450 | thread_cmd_init(); | |
2451 | workqueue_cmd_init(); | |
2452 | hash_cmd_init(); | |
2453 | } | |
2454 | ||
2455 | install_element(CONFIG_NODE, &hostname_cmd); | |
2456 | install_element(CONFIG_NODE, &no_hostname_cmd); | |
6b3ee3a0 MK |
2457 | install_element(CONFIG_NODE, &domainname_cmd); |
2458 | install_element(CONFIG_NODE, &no_domainname_cmd); | |
d62a17ae | 2459 | |
2460 | if (terminal > 0) { | |
0bdeb5e5 DL |
2461 | full_cli = true; |
2462 | ||
85a6806d MS |
2463 | install_element(CONFIG_NODE, &debug_memstats_cmd); |
2464 | ||
d62a17ae | 2465 | install_element(CONFIG_NODE, &password_cmd); |
322e2d5c | 2466 | install_element(CONFIG_NODE, &no_password_cmd); |
d62a17ae | 2467 | install_element(CONFIG_NODE, &enable_password_cmd); |
2468 | install_element(CONFIG_NODE, &no_enable_password_cmd); | |
2469 | ||
d62a17ae | 2470 | install_element(CONFIG_NODE, &service_password_encrypt_cmd); |
2471 | install_element(CONFIG_NODE, &no_service_password_encrypt_cmd); | |
2472 | install_element(CONFIG_NODE, &banner_motd_default_cmd); | |
2473 | install_element(CONFIG_NODE, &banner_motd_file_cmd); | |
19d61463 | 2474 | install_element(CONFIG_NODE, &banner_motd_line_cmd); |
d62a17ae | 2475 | install_element(CONFIG_NODE, &no_banner_motd_cmd); |
2476 | install_element(CONFIG_NODE, &service_terminal_length_cmd); | |
2477 | install_element(CONFIG_NODE, &no_service_terminal_length_cmd); | |
2478 | ||
0bdeb5e5 | 2479 | log_cmd_init(); |
d62a17ae | 2480 | vrf_install_commands(); |
2481 | } | |
af2567b6 DL |
2482 | |
2483 | #ifdef DEV_BUILD | |
d62a17ae | 2484 | grammar_sandbox_init(); |
af2567b6 | 2485 | #endif |
718e3744 | 2486 | } |
228da428 | 2487 | |
4d762f26 | 2488 | void cmd_terminate(void) |
d62a17ae | 2489 | { |
2490 | struct cmd_node *cmd_node; | |
2491 | ||
5d806ec6 QY |
2492 | hook_unregister(cmd_execute, handle_pipe_action); |
2493 | hook_unregister(cmd_execute_done, handle_pipe_action_done); | |
2494 | ||
d62a17ae | 2495 | if (cmdvec) { |
2496 | for (unsigned int i = 0; i < vector_active(cmdvec); i++) | |
2497 | if ((cmd_node = vector_slot(cmdvec, i)) != NULL) { | |
2498 | // deleting the graph delets the cmd_element as | |
2499 | // well | |
2500 | graph_delete_graph(cmd_node->cmdgraph); | |
2501 | vector_free(cmd_node->cmd_vector); | |
2502 | hash_clean(cmd_node->cmd_hash, NULL); | |
2503 | hash_free(cmd_node->cmd_hash); | |
2504 | cmd_node->cmd_hash = NULL; | |
2505 | } | |
2506 | ||
2507 | vector_free(cmdvec); | |
2508 | cmdvec = NULL; | |
2509 | } | |
2510 | ||
0a22ddfb QY |
2511 | XFREE(MTYPE_HOST, host.name); |
2512 | XFREE(MTYPE_HOST, host.domainname); | |
2513 | XFREE(MTYPE_HOST, host.password); | |
2514 | XFREE(MTYPE_HOST, host.password_encrypt); | |
2515 | XFREE(MTYPE_HOST, host.enable); | |
2516 | XFREE(MTYPE_HOST, host.enable_encrypt); | |
0a22ddfb QY |
2517 | XFREE(MTYPE_HOST, host.motdfile); |
2518 | XFREE(MTYPE_HOST, host.config); | |
19d61463 | 2519 | XFREE(MTYPE_HOST, host.motd); |
d62a17ae | 2520 | |
6a154c88 | 2521 | list_delete(&varhandlers); |
d62a17ae | 2522 | qobj_finish(); |
228da428 | 2523 | } |