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718e3744 | 1 | /* Configuration generator. |
896014f4 DL |
2 | * Copyright (C) 2000 Kunihiro Ishiguro |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "command.h" | |
24 | #include "linklist.h" | |
25 | #include "memory.h" | |
26 | ||
27 | #include "vtysh/vtysh.h" | |
88177fe3 | 28 | #include "vtysh/vtysh_user.h" |
718e3744 | 29 | |
4a1ab8e4 | 30 | DEFINE_MGROUP(MVTYSH, "vtysh") |
d62a17ae | 31 | DEFINE_MTYPE_STATIC(MVTYSH, VTYSH_CONFIG, "Vtysh configuration") |
4a1ab8e4 DL |
32 | DEFINE_MTYPE_STATIC(MVTYSH, VTYSH_CONFIG_LINE, "Vtysh configuration line") |
33 | ||
718e3744 | 34 | vector configvec; |
35 | ||
d62a17ae | 36 | struct config { |
37 | /* Configuration node name. */ | |
38 | char *name; | |
718e3744 | 39 | |
d62a17ae | 40 | /* Configuration string line. */ |
41 | struct list *line; | |
718e3744 | 42 | |
d62a17ae | 43 | /* Configuration can be nest. */ |
44 | struct config *config; | |
718e3744 | 45 | |
d62a17ae | 46 | /* Index of this config. */ |
47 | u_int32_t index; | |
718e3744 | 48 | }; |
49 | ||
50 | struct list *config_top; | |
95e735b5 | 51 | |
d62a17ae | 52 | static int line_cmp(char *c1, char *c2) |
718e3744 | 53 | { |
d62a17ae | 54 | return strcmp(c1, c2); |
718e3744 | 55 | } |
56 | ||
d62a17ae | 57 | static void line_del(char *line) |
718e3744 | 58 | { |
d62a17ae | 59 | XFREE(MTYPE_VTYSH_CONFIG_LINE, line); |
718e3744 | 60 | } |
61 | ||
d62a17ae | 62 | static struct config *config_new(void) |
718e3744 | 63 | { |
d62a17ae | 64 | struct config *config; |
65 | config = XCALLOC(MTYPE_VTYSH_CONFIG, sizeof(struct config)); | |
66 | return config; | |
718e3744 | 67 | } |
68 | ||
d62a17ae | 69 | static int config_cmp(struct config *c1, struct config *c2) |
718e3744 | 70 | { |
d62a17ae | 71 | return strcmp(c1->name, c2->name); |
718e3744 | 72 | } |
73 | ||
d62a17ae | 74 | static void config_del(struct config *config) |
718e3744 | 75 | { |
d62a17ae | 76 | list_delete(config->line); |
77 | if (config->name) | |
78 | XFREE(MTYPE_VTYSH_CONFIG_LINE, config->name); | |
79 | XFREE(MTYPE_VTYSH_CONFIG, config); | |
718e3744 | 80 | } |
81 | ||
d62a17ae | 82 | static struct config *config_get(int index, const char *line) |
718e3744 | 83 | { |
d62a17ae | 84 | struct config *config; |
85 | struct config *config_loop; | |
86 | struct list *master; | |
87 | struct listnode *node, *nnode; | |
88 | ||
89 | config = config_loop = NULL; | |
90 | ||
91 | master = vector_lookup_ensure(configvec, index); | |
92 | ||
93 | if (!master) { | |
94 | master = list_new(); | |
95 | master->del = (void (*)(void *))config_del; | |
96 | master->cmp = (int (*)(void *, void *))config_cmp; | |
97 | vector_set_index(configvec, index, master); | |
98 | } | |
99 | ||
100 | for (ALL_LIST_ELEMENTS(master, node, nnode, config_loop)) { | |
101 | if (strcmp(config_loop->name, line) == 0) | |
102 | config = config_loop; | |
103 | } | |
104 | ||
105 | if (!config) { | |
106 | config = config_new(); | |
107 | config->line = list_new(); | |
108 | config->line->del = (void (*)(void *))line_del; | |
109 | config->line->cmp = (int (*)(void *, void *))line_cmp; | |
110 | config->name = XSTRDUP(MTYPE_VTYSH_CONFIG_LINE, line); | |
111 | config->index = index; | |
112 | listnode_add(master, config); | |
113 | } | |
114 | return config; | |
718e3744 | 115 | } |
116 | ||
d62a17ae | 117 | void config_add_line(struct list *config, const char *line) |
718e3744 | 118 | { |
d62a17ae | 119 | listnode_add(config, XSTRDUP(MTYPE_VTYSH_CONFIG_LINE, line)); |
718e3744 | 120 | } |
121 | ||
d62a17ae | 122 | static void config_add_line_uniq(struct list *config, const char *line) |
718e3744 | 123 | { |
d62a17ae | 124 | struct listnode *node, *nnode; |
125 | char *pnt; | |
126 | ||
127 | for (ALL_LIST_ELEMENTS(config, node, nnode, pnt)) { | |
128 | if (strcmp(pnt, line) == 0) | |
129 | return; | |
130 | } | |
131 | listnode_add_sort(config, XSTRDUP(MTYPE_VTYSH_CONFIG_LINE, line)); | |
718e3744 | 132 | } |
133 | ||
d62a17ae | 134 | void vtysh_config_parse_line(void *arg, const char *line) |
718e3744 | 135 | { |
d62a17ae | 136 | char c; |
137 | static struct config *config = NULL; | |
138 | ||
139 | if (!line) | |
140 | return; | |
141 | ||
142 | c = line[0]; | |
143 | ||
144 | if (c == '\0') | |
145 | return; | |
146 | ||
147 | /* printf ("[%s]\n", line); */ | |
148 | ||
149 | switch (c) { | |
150 | /* Suppress exclamation points ! and commented lines. The !s are | |
151 | * generated | |
152 | * dynamically in vtysh_config_dump() */ | |
153 | case '!': | |
154 | case '#': | |
155 | break; | |
156 | case ' ': | |
157 | /* Store line to current configuration. */ | |
158 | if (config) { | |
159 | if (strncmp(line, " link-params", | |
160 | strlen(" link-params")) | |
161 | == 0) { | |
162 | config_add_line(config->line, line); | |
163 | config->index = LINK_PARAMS_NODE; | |
164 | } else if (config->index == LINK_PARAMS_NODE | |
165 | && strncmp(line, " exit-link-params", | |
166 | strlen(" exit")) | |
167 | == 0) { | |
168 | config_add_line(config->line, line); | |
169 | config->index = INTERFACE_NODE; | |
170 | } else if (config->index == RMAP_NODE | |
171 | || config->index == INTERFACE_NODE | |
172 | || config->index == NS_NODE | |
173 | || config->index == VTY_NODE | |
174 | || config->index == VRF_NODE) | |
175 | config_add_line_uniq(config->line, line); | |
176 | else | |
177 | config_add_line(config->line, line); | |
178 | } else | |
179 | config_add_line(config_top, line); | |
180 | break; | |
181 | default: | |
182 | if (strncmp(line, "interface", strlen("interface")) == 0) | |
183 | config = config_get(INTERFACE_NODE, line); | |
2dd0d726 RW |
184 | else if (strncmp(line, "pseudowire", strlen("pseudowire")) == 0) |
185 | config = config_get(PW_NODE, line); | |
d62a17ae | 186 | else if (strncmp(line, "logical-router", strlen("ns")) == 0) |
187 | config = config_get(NS_NODE, line); | |
188 | else if (strncmp(line, "vrf", strlen("vrf")) == 0) | |
189 | config = config_get(VRF_NODE, line); | |
190 | else if (strncmp(line, "router-id", strlen("router-id")) == 0) | |
191 | config = config_get(ZEBRA_NODE, line); | |
192 | else if (strncmp(line, "router rip", strlen("router rip")) == 0) | |
193 | config = config_get(RIP_NODE, line); | |
194 | else if (strncmp(line, "router ripng", strlen("router ripng")) | |
195 | == 0) | |
196 | config = config_get(RIPNG_NODE, line); | |
197 | else if (strncmp(line, "router eigrp", strlen("router eigrp")) | |
198 | == 0) | |
199 | config = config_get(EIGRP_NODE, line); | |
200 | else if (strncmp(line, "router babel", strlen("router babel")) | |
201 | == 0) | |
202 | config = config_get(BABEL_NODE, line); | |
203 | else if (strncmp(line, "router ospf", strlen("router ospf")) | |
204 | == 0) | |
205 | config = config_get(OSPF_NODE, line); | |
206 | else if (strncmp(line, "router ospf6", strlen("router ospf6")) | |
207 | == 0) | |
208 | config = config_get(OSPF6_NODE, line); | |
209 | else if (strncmp(line, "mpls ldp", strlen("mpls ldp")) == 0) | |
210 | config = config_get(LDP_NODE, line); | |
211 | else if (strncmp(line, "l2vpn", strlen("l2vpn")) == 0) | |
212 | config = config_get(LDP_L2VPN_NODE, line); | |
213 | else if (strncmp(line, "router bgp", strlen("router bgp")) == 0) | |
214 | config = config_get(BGP_NODE, line); | |
215 | else if (strncmp(line, "router isis", strlen("router isis")) | |
216 | == 0) | |
217 | config = config_get(ISIS_NODE, line); | |
218 | else if (strncmp(line, "route-map", strlen("route-map")) == 0) | |
219 | config = config_get(RMAP_NODE, line); | |
220 | else if (strncmp(line, "access-list", strlen("access-list")) | |
221 | == 0) | |
222 | config = config_get(ACCESS_NODE, line); | |
223 | else if (strncmp(line, "ipv6 access-list", | |
224 | strlen("ipv6 access-list")) | |
225 | == 0) | |
226 | config = config_get(ACCESS_IPV6_NODE, line); | |
d37ba549 MK |
227 | else if (strncmp(line, "mac access-list", |
228 | strlen("mac access-list")) | |
229 | == 0) | |
230 | config = config_get(ACCESS_MAC_NODE, line); | |
d62a17ae | 231 | else if (strncmp(line, "ip prefix-list", |
232 | strlen("ip prefix-list")) | |
233 | == 0) | |
234 | config = config_get(PREFIX_NODE, line); | |
235 | else if (strncmp(line, "ipv6 prefix-list", | |
236 | strlen("ipv6 prefix-list")) | |
237 | == 0) | |
238 | config = config_get(PREFIX_IPV6_NODE, line); | |
239 | else if (strncmp(line, "ip as-path access-list", | |
240 | strlen("ip as-path access-list")) | |
241 | == 0) | |
242 | config = config_get(AS_LIST_NODE, line); | |
243 | else if (strncmp(line, "ip community-list", | |
244 | strlen("ip community-list")) | |
245 | == 0 | |
246 | || strncmp(line, "ip extcommunity-list", | |
247 | strlen("ip extcommunity-list")) | |
248 | == 0) | |
249 | config = config_get(COMMUNITY_LIST_NODE, line); | |
250 | else if (strncmp(line, "ip route", strlen("ip route")) == 0) | |
251 | config = config_get(IP_NODE, line); | |
252 | else if (strncmp(line, "ipv6 route", strlen("ipv6 route")) == 0) | |
253 | config = config_get(IP_NODE, line); | |
254 | else if (strncmp(line, "key", strlen("key")) == 0) | |
255 | config = config_get(KEYCHAIN_NODE, line); | |
256 | else if (strncmp(line, "line", strlen("line")) == 0) | |
257 | config = config_get(VTY_NODE, line); | |
258 | else if ((strncmp(line, "ipv6 forwarding", | |
259 | strlen("ipv6 forwarding")) | |
260 | == 0) | |
261 | || (strncmp(line, "ip forwarding", | |
262 | strlen("ip forwarding")) | |
263 | == 0)) | |
264 | config = config_get(FORWARDING_NODE, line); | |
265 | else if (strncmp(line, "service", strlen("service")) == 0) | |
266 | config = config_get(SERVICE_NODE, line); | |
267 | else if (strncmp(line, "debug vrf", strlen("debug vrf")) == 0) | |
268 | config = config_get(VRF_DEBUG_NODE, line); | |
269 | else if (strncmp(line, "debug", strlen("debug")) == 0) | |
270 | config = config_get(DEBUG_NODE, line); | |
271 | else if (strncmp(line, "password", strlen("password")) == 0 | |
272 | || strncmp(line, "enable password", | |
273 | strlen("enable password")) | |
274 | == 0) | |
275 | config = config_get(AAA_NODE, line); | |
276 | else if (strncmp(line, "ip protocol", strlen("ip protocol")) | |
277 | == 0) | |
278 | config = config_get(PROTOCOL_NODE, line); | |
279 | else if (strncmp(line, "ipv6 protocol", strlen("ipv6 protocol")) | |
280 | == 0) | |
281 | config = config_get(PROTOCOL_NODE, line); | |
282 | else if (strncmp(line, "ip nht", strlen("ip nht")) == 0) | |
283 | config = config_get(PROTOCOL_NODE, line); | |
284 | else if (strncmp(line, "ipv6 nht", strlen("ipv6 nht")) == 0) | |
285 | config = config_get(PROTOCOL_NODE, line); | |
286 | else if (strncmp(line, "mpls", strlen("mpls")) == 0) | |
287 | config = config_get(MPLS_NODE, line); | |
288 | else { | |
289 | if (strncmp(line, "log", strlen("log")) == 0 | |
290 | || strncmp(line, "hostname", strlen("hostname")) | |
291 | == 0 | |
292 | || strncmp(line, "frr", strlen("frr")) == 0 | |
293 | || strncmp(line, "agentx", strlen("agentx")) == 0 | |
294 | || strncmp(line, "no log", strlen("no log")) == 0) | |
295 | config_add_line_uniq(config_top, line); | |
296 | else | |
297 | config_add_line(config_top, line); | |
298 | config = NULL; | |
299 | } | |
300 | break; | |
718e3744 | 301 | } |
718e3744 | 302 | } |
303 | ||
718e3744 | 304 | /* Macro to check delimiter is needed between each configuration line |
95e735b5 | 305 | * or not. */ |
d62a17ae | 306 | #define NO_DELIMITER(I) \ |
307 | ((I) == ACCESS_NODE || (I) == PREFIX_NODE || (I) == IP_NODE \ | |
308 | || (I) == AS_LIST_NODE || (I) == COMMUNITY_LIST_NODE \ | |
d37ba549 MK |
309 | || (I) == ACCESS_IPV6_NODE || (I) == ACCESS_MAC_NODE \ |
310 | || (I) == PREFIX_IPV6_NODE || (I) == SERVICE_NODE \ | |
311 | || (I) == FORWARDING_NODE || (I) == DEBUG_NODE || (I) == AAA_NODE \ | |
312 | || (I) == VRF_DEBUG_NODE || (I) == MPLS_NODE) | |
718e3744 | 313 | |
95e735b5 | 314 | /* Display configuration to file pointer. */ |
d62a17ae | 315 | void vtysh_config_dump(FILE *fp) |
718e3744 | 316 | { |
d62a17ae | 317 | struct listnode *node, *nnode; |
318 | struct listnode *mnode, *mnnode; | |
319 | struct config *config; | |
320 | struct list *master; | |
321 | char *line; | |
322 | unsigned int i; | |
323 | ||
324 | for (ALL_LIST_ELEMENTS(config_top, node, nnode, line)) { | |
325 | fprintf(fp, "%s\n", line); | |
326 | fflush(fp); | |
327 | } | |
328 | fprintf(fp, "!\n"); | |
329 | fflush(fp); | |
330 | ||
331 | for (i = 0; i < vector_active(configvec); i++) | |
332 | if ((master = vector_slot(configvec, i)) != NULL) { | |
333 | for (ALL_LIST_ELEMENTS(master, node, nnode, config)) { | |
334 | /* Don't print empty sections for interface/vrf. | |
335 | * Route maps on the | |
336 | * other hand could have a legitimate empty | |
337 | * section at the end. | |
338 | */ | |
339 | if ((config->index == INTERFACE_NODE | |
340 | || config->index == VRF_NODE) | |
341 | && list_isempty(config->line)) | |
342 | continue; | |
343 | ||
344 | fprintf(fp, "%s\n", config->name); | |
345 | fflush(fp); | |
346 | ||
347 | for (ALL_LIST_ELEMENTS(config->line, mnode, | |
348 | mnnode, line)) { | |
349 | fprintf(fp, "%s\n", line); | |
350 | fflush(fp); | |
351 | } | |
352 | if (!NO_DELIMITER(i)) { | |
353 | fprintf(fp, "!\n"); | |
354 | fflush(fp); | |
355 | } | |
356 | } | |
357 | if (NO_DELIMITER(i)) { | |
358 | fprintf(fp, "!\n"); | |
359 | fflush(fp); | |
360 | } | |
361 | } | |
362 | ||
363 | for (i = 0; i < vector_active(configvec); i++) | |
364 | if ((master = vector_slot(configvec, i)) != NULL) { | |
365 | list_delete(master); | |
366 | vector_slot(configvec, i) = NULL; | |
367 | } | |
368 | list_delete_all_node(config_top); | |
718e3744 | 369 | } |
370 | ||
371 | /* Read up configuration file from file_name. */ | |
d62a17ae | 372 | static int vtysh_read_file(FILE *confp) |
718e3744 | 373 | { |
d62a17ae | 374 | struct vty *vty; |
375 | int ret; | |
376 | ||
377 | vty = vty_new(); | |
378 | vty->fd = 0; /* stdout */ | |
379 | vty->type = VTY_TERM; | |
380 | vty->node = CONFIG_NODE; | |
718e3744 | 381 | |
d62a17ae | 382 | vtysh_execute_no_pager("enable"); |
383 | vtysh_execute_no_pager("configure terminal"); | |
718e3744 | 384 | |
d62a17ae | 385 | /* Execute configuration file. */ |
386 | ret = vtysh_config_from_file(vty, confp); | |
718e3744 | 387 | |
d62a17ae | 388 | vtysh_execute_no_pager("end"); |
389 | vtysh_execute_no_pager("disable"); | |
718e3744 | 390 | |
d62a17ae | 391 | vty_close(vty); |
3221dca8 | 392 | |
d62a17ae | 393 | return (ret); |
718e3744 | 394 | } |
395 | ||
e7168df4 | 396 | /* Read up configuration file from config_default_dir. */ |
d62a17ae | 397 | int vtysh_read_config(const char *config_default_dir) |
718e3744 | 398 | { |
d62a17ae | 399 | FILE *confp = NULL; |
400 | int ret; | |
401 | ||
402 | confp = fopen(config_default_dir, "r"); | |
403 | if (confp == NULL) { | |
404 | fprintf(stderr, | |
405 | "%% Can't open configuration file %s due to '%s'.\n", | |
406 | config_default_dir, safe_strerror(errno)); | |
407 | return (CMD_ERR_NO_FILE); | |
408 | } | |
67e29abc | 409 | |
d62a17ae | 410 | ret = vtysh_read_file(confp); |
411 | fclose(confp); | |
718e3744 | 412 | |
d62a17ae | 413 | return (ret); |
718e3744 | 414 | } |
415 | ||
e7168df4 | 416 | /* We don't write vtysh specific into file from vtysh. vtysh.conf should |
417 | * be edited by hand. So, we handle only "write terminal" case here and | |
418 | * integrate vtysh specific conf with conf from daemons. | |
419 | */ | |
d62a17ae | 420 | void vtysh_config_write() |
718e3744 | 421 | { |
d62a17ae | 422 | char line[81]; |
423 | extern struct host host; | |
424 | ||
425 | if (host.name) { | |
426 | sprintf(line, "hostname %s", host.name); | |
427 | vtysh_config_parse_line(NULL, line); | |
428 | } | |
429 | if (vtysh_write_integrated == WRITE_INTEGRATED_NO) | |
430 | vtysh_config_parse_line(NULL, | |
431 | "no service integrated-vtysh-config"); | |
432 | if (vtysh_write_integrated == WRITE_INTEGRATED_YES) | |
433 | vtysh_config_parse_line(NULL, | |
434 | "service integrated-vtysh-config"); | |
435 | ||
436 | user_config_write(); | |
718e3744 | 437 | } |
438 | ||
d62a17ae | 439 | void vtysh_config_init() |
718e3744 | 440 | { |
d62a17ae | 441 | config_top = list_new(); |
442 | config_top->del = (void (*)(void *))line_del; | |
443 | configvec = vector_init(1); | |
718e3744 | 444 | } |