Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1 | /* |
| 2 | $Id: command.c,v 1.47 2005/04/25 16:26:42 paul Exp $ |
| 3 | |
| 4 | Command interpreter routine for virtual terminal [aka TeletYpe] |
| 5 | Copyright (C) 1997, 98, 99 Kunihiro Ishiguro |
| 6 | |
| 7 | This file is part of GNU Zebra. |
| 8 | |
| 9 | GNU Zebra is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published |
| 11 | by the Free Software Foundation; either version 2, or (at your |
| 12 | option) any later version. |
| 13 | |
| 14 | GNU Zebra is distributed in the hope that it will be useful, but |
| 15 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with GNU Zebra; see the file COPYING. If not, write to the |
Jaroslav Škarvada | 2b82c1c | 2015-11-11 16:02:54 +0100 | [diff] [blame] | 21 | Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 22 | Boston, MA 02110-1301, USA. */ |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 23 | |
| 24 | #include <stdio.h> |
| 25 | #include <stdlib.h> |
| 26 | #include <string.h> |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 27 | #include <stdbool.h> |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 28 | #include <syslog.h> |
| 29 | #include <errno.h> |
| 30 | #define _XOPEN_SOURCE |
| 31 | #include <unistd.h> |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 32 | #include <ctype.h> |
| 33 | #include <time.h> |
| 34 | #include <sys/time.h> |
| 35 | #include <sys/stat.h> |
| 36 | |
| 37 | #include <osmocom/vty/vector.h> |
| 38 | #include <osmocom/vty/vty.h> |
| 39 | #include <osmocom/vty/command.h> |
| 40 | |
Pablo Neira Ayuso | 8341934 | 2011-03-22 16:36:13 +0100 | [diff] [blame] | 41 | #include <osmocom/core/talloc.h> |
Harald Welte | a99d45a | 2015-11-12 13:48:23 +0100 | [diff] [blame] | 42 | #include <osmocom/core/utils.h> |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 43 | |
Harald Welte | e881b1b | 2011-08-17 18:52:30 +0200 | [diff] [blame] | 44 | /*! \addtogroup command |
Harald Welte | 96e2a00 | 2017-06-12 21:44:18 +0200 | [diff] [blame] | 45 | * @{ |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 46 | * VTY command handling |
Neels Hofmeyr | 17518fe | 2017-06-20 04:35:06 +0200 | [diff] [blame] | 47 | * |
| 48 | * \file command.c */ |
Harald Welte | 7acb30c | 2011-08-17 17:13:48 +0200 | [diff] [blame] | 49 | |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 50 | #define CONFIGFILE_MASK 022 |
| 51 | |
| 52 | void *tall_vty_cmd_ctx; |
| 53 | |
| 54 | /* Command vector which includes some level of command lists. Normally |
| 55 | each daemon maintains each own cmdvec. */ |
| 56 | vector cmdvec; |
| 57 | |
| 58 | /* Host information structure. */ |
| 59 | struct host host; |
| 60 | |
| 61 | /* Standard command node structures. */ |
| 62 | struct cmd_node auth_node = { |
| 63 | AUTH_NODE, |
| 64 | "Password: ", |
| 65 | }; |
| 66 | |
| 67 | struct cmd_node view_node = { |
| 68 | VIEW_NODE, |
| 69 | "%s> ", |
| 70 | }; |
| 71 | |
| 72 | struct cmd_node auth_enable_node = { |
| 73 | AUTH_ENABLE_NODE, |
| 74 | "Password: ", |
| 75 | }; |
| 76 | |
| 77 | struct cmd_node enable_node = { |
| 78 | ENABLE_NODE, |
| 79 | "%s# ", |
| 80 | }; |
| 81 | |
| 82 | struct cmd_node config_node = { |
| 83 | CONFIG_NODE, |
| 84 | "%s(config)# ", |
| 85 | 1 |
| 86 | }; |
| 87 | |
| 88 | /* Default motd string. */ |
| 89 | const char *default_motd = ""; |
| 90 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 91 | /*! print the version (and optionally copyright) information |
Harald Welte | 7acb30c | 2011-08-17 17:13:48 +0200 | [diff] [blame] | 92 | * |
| 93 | * This is called from main when a daemon is invoked with -v or --version. */ |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 94 | void print_version(int print_copyright) |
| 95 | { |
Harald Welte | 237f624 | 2010-05-25 23:00:45 +0200 | [diff] [blame] | 96 | printf("%s version %s\n", host.app_info->name, host.app_info->version); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 97 | if (print_copyright) |
Harald Welte | 237f624 | 2010-05-25 23:00:45 +0200 | [diff] [blame] | 98 | printf("\n%s\n", host.app_info->copyright); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 99 | } |
| 100 | |
| 101 | /* Utility function to concatenate argv argument into a single string |
| 102 | with inserting ' ' character between each argument. */ |
| 103 | char *argv_concat(const char **argv, int argc, int shift) |
| 104 | { |
| 105 | int i; |
| 106 | size_t len; |
| 107 | char *str; |
| 108 | char *p; |
| 109 | |
| 110 | len = 0; |
| 111 | for (i = shift; i < argc; i++) |
| 112 | len += strlen(argv[i]) + 1; |
| 113 | if (!len) |
| 114 | return NULL; |
| 115 | p = str = _talloc_zero(tall_vty_cmd_ctx, len, "arvg_concat"); |
| 116 | for (i = shift; i < argc; i++) { |
| 117 | size_t arglen; |
| 118 | memcpy(p, argv[i], (arglen = strlen(argv[i]))); |
| 119 | p += arglen; |
| 120 | *p++ = ' '; |
| 121 | } |
| 122 | *(p - 1) = '\0'; |
| 123 | return str; |
| 124 | } |
| 125 | |
Neels Hofmeyr | 657c5b6 | 2017-09-18 16:42:06 +0200 | [diff] [blame] | 126 | /* Strip all characters from a string (prompt) except for alnum, '-' and '_'. |
| 127 | * For example used to derive a node->name from node->prompt if the user didn't provide a name; |
| 128 | * in turn, this name us used for XML IDs in 'show online-help'. */ |
| 129 | static const char *node_name_from_prompt(const char *prompt, char *name_buf, size_t name_buf_size) |
| 130 | { |
| 131 | const char *pos; |
| 132 | int dest = 0; |
| 133 | |
| 134 | if (!prompt || !*prompt) |
| 135 | return ""; |
| 136 | |
| 137 | for (pos = prompt; *pos && dest < (name_buf_size-1); pos++) { |
| 138 | if (pos[0] == '%' && pos[1]) { |
| 139 | /* skip "%s"; loop pos++ does the second one. */ |
| 140 | pos++; |
| 141 | continue; |
| 142 | } |
| 143 | if (!(isalnum(pos[0]) || pos[0] == '-' || pos[0] == '_')) |
| 144 | continue; |
| 145 | name_buf[dest] = pos[0]; |
| 146 | dest++; |
| 147 | } |
| 148 | name_buf[dest] = '\0'; |
| 149 | return name_buf; |
| 150 | } |
| 151 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 152 | /*! Install top node of command vector. */ |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 153 | void install_node(struct cmd_node *node, int (*func) (struct vty *)) |
| 154 | { |
| 155 | vector_set_index(cmdvec, node->node, node); |
| 156 | node->func = func; |
| 157 | node->cmd_vector = vector_init(VECTOR_MIN_SIZE); |
Neels Hofmeyr | 657c5b6 | 2017-09-18 16:42:06 +0200 | [diff] [blame] | 158 | if (!*node->name) |
| 159 | node_name_from_prompt(node->prompt, node->name, sizeof(node->name)); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 160 | } |
| 161 | |
| 162 | /* Compare two command's string. Used in sort_node (). */ |
| 163 | static int cmp_node(const void *p, const void *q) |
| 164 | { |
| 165 | struct cmd_element *a = *(struct cmd_element **)p; |
| 166 | struct cmd_element *b = *(struct cmd_element **)q; |
| 167 | |
| 168 | return strcmp(a->string, b->string); |
| 169 | } |
| 170 | |
| 171 | static int cmp_desc(const void *p, const void *q) |
| 172 | { |
| 173 | struct desc *a = *(struct desc **)p; |
| 174 | struct desc *b = *(struct desc **)q; |
| 175 | |
| 176 | return strcmp(a->cmd, b->cmd); |
| 177 | } |
| 178 | |
Jacob Erlbeck | 2442e09 | 2013-09-06 16:51:58 +0200 | [diff] [blame] | 179 | static int is_config_child(struct vty *vty) |
Holger Hans Peter Freyther | 50cfb78 | 2010-08-25 13:23:53 +0800 | [diff] [blame] | 180 | { |
Holger Hans Peter Freyther | 8304b1e | 2010-09-04 11:19:39 +0800 | [diff] [blame] | 181 | if (vty->node <= CONFIG_NODE) |
Holger Hans Peter Freyther | 3e85e8d | 2010-08-26 14:37:10 +0800 | [diff] [blame] | 182 | return 0; |
Holger Hans Peter Freyther | 8304b1e | 2010-09-04 11:19:39 +0800 | [diff] [blame] | 183 | else if (vty->node > CONFIG_NODE && vty->node < _LAST_OSMOVTY_NODE) |
Holger Hans Peter Freyther | 3e85e8d | 2010-08-26 14:37:10 +0800 | [diff] [blame] | 184 | return 1; |
| 185 | else if (host.app_info->is_config_node) |
Holger Hans Peter Freyther | 8f09f01 | 2010-08-25 17:34:56 +0800 | [diff] [blame] | 186 | return host.app_info->is_config_node(vty, vty->node); |
Holger Hans Peter Freyther | 3e85e8d | 2010-08-26 14:37:10 +0800 | [diff] [blame] | 187 | else |
| 188 | return vty->node > CONFIG_NODE; |
Holger Hans Peter Freyther | 50cfb78 | 2010-08-25 13:23:53 +0800 | [diff] [blame] | 189 | } |
| 190 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 191 | /*! Sort each node's command element according to command string. */ |
Harald Welte | 95b2b47 | 2011-07-16 11:58:09 +0200 | [diff] [blame] | 192 | void sort_node(void) |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 193 | { |
| 194 | unsigned int i, j; |
| 195 | struct cmd_node *cnode; |
| 196 | vector descvec; |
| 197 | struct cmd_element *cmd_element; |
| 198 | |
| 199 | for (i = 0; i < vector_active(cmdvec); i++) |
| 200 | if ((cnode = vector_slot(cmdvec, i)) != NULL) { |
| 201 | vector cmd_vector = cnode->cmd_vector; |
| 202 | qsort(cmd_vector->index, vector_active(cmd_vector), |
| 203 | sizeof(void *), cmp_node); |
| 204 | |
| 205 | for (j = 0; j < vector_active(cmd_vector); j++) |
| 206 | if ((cmd_element = |
| 207 | vector_slot(cmd_vector, j)) != NULL |
| 208 | && vector_active(cmd_element->strvec)) { |
| 209 | descvec = |
| 210 | vector_slot(cmd_element->strvec, |
| 211 | vector_active |
| 212 | (cmd_element->strvec) - |
| 213 | 1); |
| 214 | qsort(descvec->index, |
| 215 | vector_active(descvec), |
| 216 | sizeof(void *), cmp_desc); |
| 217 | } |
| 218 | } |
| 219 | } |
| 220 | |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 221 | /*! Break up string in command tokens. Return leading indents. |
| 222 | * \param[in] string String to split. |
| 223 | * \param[out] indent If not NULL, return a talloc_strdup of indent characters. |
| 224 | * \param[out] strvec_p Returns vector of split tokens, must not be NULL. |
| 225 | * \returns CMD_SUCCESS or CMD_ERR_INVALID_INDENT |
| 226 | * |
| 227 | * If \a indent is passed non-NULL, only simple space ' ' indents are allowed, |
| 228 | * so that \a indent can simply return the count of leading spaces. |
| 229 | * Otherwise any isspace() characters are allowed for indenting (backwards compat). |
| 230 | */ |
| 231 | int cmd_make_strvec2(const char *string, char **indent, vector *strvec_p) |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 232 | { |
| 233 | const char *cp, *start; |
| 234 | char *token; |
| 235 | int strlen; |
| 236 | vector strvec; |
| 237 | |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 238 | *strvec_p = NULL; |
| 239 | if (indent) |
| 240 | *indent = 0; |
| 241 | |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 242 | if (string == NULL) |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 243 | return CMD_SUCCESS; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 244 | |
| 245 | cp = string; |
| 246 | |
| 247 | /* Skip white spaces. */ |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 248 | while (isspace((int)*cp) && *cp != '\0') { |
| 249 | /* if we're counting indents, we need to be strict about them */ |
| 250 | if (indent && (*cp != ' ') && (*cp != '\t')) { |
| 251 | /* Ignore blank lines, they appear as leading whitespace with line breaks. */ |
| 252 | if (*cp == '\n' || *cp == '\r') { |
| 253 | cp++; |
| 254 | string = cp; |
| 255 | continue; |
| 256 | } |
| 257 | return CMD_ERR_INVALID_INDENT; |
| 258 | } |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 259 | cp++; |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 260 | } |
| 261 | |
| 262 | if (indent) |
| 263 | *indent = talloc_strndup(tall_vty_cmd_ctx, string, cp - string); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 264 | |
| 265 | /* Return if there is only white spaces */ |
| 266 | if (*cp == '\0') |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 267 | return CMD_SUCCESS; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 268 | |
| 269 | if (*cp == '!' || *cp == '#') |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 270 | return CMD_SUCCESS; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 271 | |
| 272 | /* Prepare return vector. */ |
| 273 | strvec = vector_init(VECTOR_MIN_SIZE); |
| 274 | |
| 275 | /* Copy each command piece and set into vector. */ |
| 276 | while (1) { |
| 277 | start = cp; |
| 278 | while (!(isspace((int)*cp) || *cp == '\r' || *cp == '\n') && |
| 279 | *cp != '\0') |
| 280 | cp++; |
| 281 | strlen = cp - start; |
| 282 | token = _talloc_zero(tall_vty_cmd_ctx, strlen + 1, "make_strvec"); |
| 283 | memcpy(token, start, strlen); |
| 284 | *(token + strlen) = '\0'; |
| 285 | vector_set(strvec, token); |
| 286 | |
| 287 | while ((isspace((int)*cp) || *cp == '\n' || *cp == '\r') && |
| 288 | *cp != '\0') |
| 289 | cp++; |
| 290 | |
| 291 | if (*cp == '\0') |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 292 | break; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 293 | } |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 294 | |
| 295 | *strvec_p = strvec; |
| 296 | return CMD_SUCCESS; |
| 297 | } |
| 298 | |
| 299 | /*! Breaking up string into each command piece. I assume given |
| 300 | character is separated by a space character. Return value is a |
| 301 | vector which includes char ** data element. */ |
| 302 | vector cmd_make_strvec(const char *string) |
| 303 | { |
| 304 | vector strvec; |
| 305 | cmd_make_strvec2(string, NULL, &strvec); |
| 306 | return strvec; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 307 | } |
| 308 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 309 | /*! Free allocated string vector. */ |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 310 | void cmd_free_strvec(vector v) |
| 311 | { |
| 312 | unsigned int i; |
| 313 | char *cp; |
| 314 | |
| 315 | if (!v) |
| 316 | return; |
| 317 | |
| 318 | for (i = 0; i < vector_active(v); i++) |
| 319 | if ((cp = vector_slot(v, i)) != NULL) |
| 320 | talloc_free(cp); |
| 321 | |
| 322 | vector_free(v); |
| 323 | } |
| 324 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 325 | /*! Fetch next description. Used in \ref cmd_make_descvec(). */ |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 326 | static char *cmd_desc_str(const char **string) |
| 327 | { |
| 328 | const char *cp, *start; |
| 329 | char *token; |
| 330 | int strlen; |
| 331 | |
| 332 | cp = *string; |
| 333 | |
| 334 | if (cp == NULL) |
| 335 | return NULL; |
| 336 | |
| 337 | /* Skip white spaces. */ |
| 338 | while (isspace((int)*cp) && *cp != '\0') |
| 339 | cp++; |
| 340 | |
| 341 | /* Return if there is only white spaces */ |
| 342 | if (*cp == '\0') |
| 343 | return NULL; |
| 344 | |
| 345 | start = cp; |
| 346 | |
| 347 | while (!(*cp == '\r' || *cp == '\n') && *cp != '\0') |
| 348 | cp++; |
| 349 | |
| 350 | strlen = cp - start; |
| 351 | token = _talloc_zero(tall_vty_cmd_ctx, strlen + 1, "cmd_desc_str"); |
| 352 | memcpy(token, start, strlen); |
| 353 | *(token + strlen) = '\0'; |
| 354 | |
| 355 | *string = cp; |
| 356 | |
| 357 | return token; |
| 358 | } |
| 359 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 360 | /*! New string vector. */ |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 361 | static vector cmd_make_descvec(const char *string, const char *descstr) |
| 362 | { |
| 363 | int multiple = 0; |
| 364 | const char *sp; |
| 365 | char *token; |
| 366 | int len; |
| 367 | const char *cp; |
| 368 | const char *dp; |
| 369 | vector allvec; |
| 370 | vector strvec = NULL; |
| 371 | struct desc *desc; |
| 372 | |
| 373 | cp = string; |
| 374 | dp = descstr; |
| 375 | |
| 376 | if (cp == NULL) |
| 377 | return NULL; |
| 378 | |
| 379 | allvec = vector_init(VECTOR_MIN_SIZE); |
| 380 | |
| 381 | while (1) { |
| 382 | while (isspace((int)*cp) && *cp != '\0') |
| 383 | cp++; |
| 384 | |
| 385 | if (*cp == '(') { |
| 386 | multiple = 1; |
| 387 | cp++; |
| 388 | } |
| 389 | if (*cp == ')') { |
| 390 | multiple = 0; |
| 391 | cp++; |
| 392 | } |
| 393 | if (*cp == '|') { |
Harald Welte | a99d45a | 2015-11-12 13:48:23 +0100 | [diff] [blame] | 394 | OSMO_ASSERT(multiple); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 395 | cp++; |
| 396 | } |
| 397 | |
| 398 | while (isspace((int)*cp) && *cp != '\0') |
| 399 | cp++; |
| 400 | |
| 401 | if (*cp == '(') { |
| 402 | multiple = 1; |
| 403 | cp++; |
| 404 | } |
| 405 | |
| 406 | if (*cp == '\0') |
| 407 | return allvec; |
| 408 | |
| 409 | sp = cp; |
| 410 | |
| 411 | while (! |
| 412 | (isspace((int)*cp) || *cp == '\r' || *cp == '\n' |
| 413 | || *cp == ')' || *cp == '|') && *cp != '\0') |
| 414 | cp++; |
| 415 | |
| 416 | len = cp - sp; |
| 417 | |
| 418 | token = _talloc_zero(tall_vty_cmd_ctx, len + 1, "cmd_make_descvec"); |
| 419 | memcpy(token, sp, len); |
| 420 | *(token + len) = '\0'; |
| 421 | |
| 422 | desc = talloc_zero(tall_vty_cmd_ctx, struct desc); |
| 423 | desc->cmd = token; |
| 424 | desc->str = cmd_desc_str(&dp); |
| 425 | |
| 426 | if (multiple) { |
| 427 | if (multiple == 1) { |
| 428 | strvec = vector_init(VECTOR_MIN_SIZE); |
| 429 | vector_set(allvec, strvec); |
| 430 | } |
| 431 | multiple++; |
| 432 | } else { |
| 433 | strvec = vector_init(VECTOR_MIN_SIZE); |
| 434 | vector_set(allvec, strvec); |
| 435 | } |
| 436 | vector_set(strvec, desc); |
| 437 | } |
| 438 | } |
| 439 | |
| 440 | /* Count mandantory string vector size. This is to determine inputed |
| 441 | command has enough command length. */ |
| 442 | static int cmd_cmdsize(vector strvec) |
| 443 | { |
| 444 | unsigned int i; |
| 445 | int size = 0; |
| 446 | vector descvec; |
| 447 | struct desc *desc; |
| 448 | |
| 449 | for (i = 0; i < vector_active(strvec); i++) |
| 450 | if ((descvec = vector_slot(strvec, i)) != NULL) { |
| 451 | if ((vector_active(descvec)) == 1 |
| 452 | && (desc = vector_slot(descvec, 0)) != NULL) { |
| 453 | if (desc->cmd == NULL || CMD_OPTION(desc->cmd)) |
| 454 | return size; |
| 455 | else |
| 456 | size++; |
| 457 | } else |
| 458 | size++; |
| 459 | } |
| 460 | return size; |
| 461 | } |
| 462 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 463 | /*! Return prompt character of specified node. */ |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 464 | const char *cmd_prompt(enum node_type node) |
| 465 | { |
| 466 | struct cmd_node *cnode; |
| 467 | |
| 468 | cnode = vector_slot(cmdvec, node); |
| 469 | return cnode->prompt; |
| 470 | } |
| 471 | |
Alexander Couzens | ad580ba | 2016-05-16 16:01:45 +0200 | [diff] [blame] | 472 | /*! |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 473 | * escape all special asciidoc symbols |
Alexander Couzens | ad580ba | 2016-05-16 16:01:45 +0200 | [diff] [blame] | 474 | * \param unsafe string |
| 475 | * \return a new talloc char * |
| 476 | */ |
| 477 | char *osmo_asciidoc_escape(const char *inp) |
| 478 | { |
| 479 | int _strlen; |
| 480 | char *out, *out_ptr; |
| 481 | int len = 0, i, j; |
| 482 | |
| 483 | if (!inp) |
| 484 | return NULL; |
| 485 | _strlen = strlen(inp); |
| 486 | |
| 487 | for (i = 0; i < _strlen; ++i) { |
| 488 | switch (inp[i]) { |
| 489 | case '|': |
| 490 | len += 2; |
| 491 | break; |
| 492 | default: |
| 493 | len += 1; |
| 494 | break; |
| 495 | } |
| 496 | } |
| 497 | |
| 498 | out = talloc_size(NULL, len + 1); |
| 499 | if (!out) |
| 500 | return NULL; |
| 501 | |
| 502 | out_ptr = out; |
| 503 | |
| 504 | #define ADD(out, str) \ |
| 505 | for (j = 0; j < strlen(str); ++j) \ |
| 506 | *(out++) = str[j]; |
| 507 | |
| 508 | for (i = 0; i < _strlen; ++i) { |
| 509 | switch (inp[i]) { |
| 510 | case '|': |
| 511 | ADD(out_ptr, "\\|"); |
| 512 | break; |
| 513 | default: |
| 514 | *(out_ptr++) = inp[i]; |
| 515 | break; |
| 516 | } |
| 517 | } |
| 518 | |
| 519 | #undef ADD |
| 520 | |
| 521 | out_ptr[0] = '\0'; |
| 522 | return out; |
| 523 | } |
| 524 | |
Holger Hans Peter Freyther | 8297c81 | 2011-11-18 23:14:24 +0100 | [diff] [blame] | 525 | static char *xml_escape(const char *inp) |
| 526 | { |
| 527 | int _strlen; |
| 528 | char *out, *out_ptr; |
| 529 | int len = 0, i, j; |
| 530 | |
| 531 | if (!inp) |
| 532 | return NULL; |
| 533 | _strlen = strlen(inp); |
| 534 | |
| 535 | for (i = 0; i < _strlen; ++i) { |
| 536 | switch (inp[i]) { |
| 537 | case '"': |
| 538 | len += 6; |
| 539 | break; |
| 540 | case '\'': |
| 541 | len += 6; |
| 542 | break; |
| 543 | case '<': |
| 544 | len += 4; |
| 545 | break; |
| 546 | case '>': |
| 547 | len += 4; |
| 548 | break; |
| 549 | case '&': |
| 550 | len += 5; |
| 551 | break; |
| 552 | default: |
| 553 | len += 1; |
| 554 | break; |
| 555 | } |
| 556 | } |
| 557 | |
| 558 | out = talloc_size(NULL, len + 1); |
| 559 | if (!out) |
| 560 | return NULL; |
| 561 | |
| 562 | out_ptr = out; |
| 563 | |
| 564 | #define ADD(out, str) \ |
| 565 | for (j = 0; j < strlen(str); ++j) \ |
| 566 | *(out++) = str[j]; |
| 567 | |
| 568 | for (i = 0; i < _strlen; ++i) { |
| 569 | switch (inp[i]) { |
| 570 | case '"': |
| 571 | ADD(out_ptr, """); |
| 572 | break; |
| 573 | case '\'': |
| 574 | ADD(out_ptr, "'"); |
| 575 | break; |
| 576 | case '<': |
| 577 | ADD(out_ptr, "<"); |
| 578 | break; |
| 579 | case '>': |
| 580 | ADD(out_ptr, ">"); |
| 581 | break; |
| 582 | case '&': |
| 583 | ADD(out_ptr, "&"); |
| 584 | break; |
| 585 | default: |
| 586 | *(out_ptr++) = inp[i]; |
| 587 | break; |
| 588 | } |
| 589 | } |
| 590 | |
| 591 | #undef ADD |
| 592 | |
| 593 | out_ptr[0] = '\0'; |
| 594 | return out; |
| 595 | } |
| 596 | |
| 597 | /* |
| 598 | * Write one cmd_element as XML to the given VTY. |
| 599 | */ |
| 600 | static int vty_dump_element(struct cmd_element *cmd, struct vty *vty) |
| 601 | { |
| 602 | char *xml_string = xml_escape(cmd->string); |
| 603 | |
| 604 | vty_out(vty, " <command id='%s'>%s", xml_string, VTY_NEWLINE); |
| 605 | vty_out(vty, " <params>%s", VTY_NEWLINE); |
| 606 | |
| 607 | int j; |
| 608 | for (j = 0; j < vector_count(cmd->strvec); ++j) { |
| 609 | vector descvec = vector_slot(cmd->strvec, j); |
| 610 | int i; |
| 611 | for (i = 0; i < vector_active(descvec); ++i) { |
| 612 | char *xml_param, *xml_doc; |
| 613 | struct desc *desc = vector_slot(descvec, i); |
| 614 | if (desc == NULL) |
| 615 | continue; |
| 616 | |
| 617 | xml_param = xml_escape(desc->cmd); |
| 618 | xml_doc = xml_escape(desc->str); |
| 619 | vty_out(vty, " <param name='%s' doc='%s' />%s", |
| 620 | xml_param, xml_doc, VTY_NEWLINE); |
| 621 | talloc_free(xml_param); |
| 622 | talloc_free(xml_doc); |
| 623 | } |
| 624 | } |
| 625 | |
| 626 | vty_out(vty, " </params>%s", VTY_NEWLINE); |
| 627 | vty_out(vty, " </command>%s", VTY_NEWLINE); |
| 628 | |
| 629 | talloc_free(xml_string); |
| 630 | return 0; |
| 631 | } |
| 632 | |
| 633 | /* |
| 634 | * Dump all nodes and commands associated with a given node as XML to the VTY. |
| 635 | */ |
| 636 | static int vty_dump_nodes(struct vty *vty) |
| 637 | { |
| 638 | int i, j; |
Neels Hofmeyr | 657c5b6 | 2017-09-18 16:42:06 +0200 | [diff] [blame] | 639 | int same_name_count; |
Holger Hans Peter Freyther | 8297c81 | 2011-11-18 23:14:24 +0100 | [diff] [blame] | 640 | |
| 641 | vty_out(vty, "<vtydoc xmlns='urn:osmocom:xml:libosmocore:vty:doc:1.0'>%s", VTY_NEWLINE); |
| 642 | |
| 643 | for (i = 0; i < vector_active(cmdvec); ++i) { |
| 644 | struct cmd_node *cnode; |
| 645 | cnode = vector_slot(cmdvec, i); |
| 646 | if (!cnode) |
| 647 | continue; |
| 648 | |
Neels Hofmeyr | 657c5b6 | 2017-09-18 16:42:06 +0200 | [diff] [blame] | 649 | /* De-dup node IDs: how many times has this same name been used before? Count the first |
| 650 | * occurence as _1 and omit that first suffix, so that the first occurence is called |
| 651 | * 'name', the second becomes 'name_2', then 'name_3', ... */ |
| 652 | same_name_count = 1; |
| 653 | for (j = 0; j < i; ++j) { |
| 654 | struct cmd_node *cnode2; |
| 655 | cnode2 = vector_slot(cmdvec, j); |
| 656 | if (!cnode2) |
| 657 | continue; |
| 658 | if (strcmp(cnode->name, cnode2->name) == 0) |
| 659 | same_name_count ++; |
| 660 | } |
| 661 | |
| 662 | vty_out(vty, " <node id='%s", cnode->name); |
| 663 | if (same_name_count > 1 || !*cnode->name) |
| 664 | vty_out(vty, "_%d", same_name_count); |
| 665 | vty_out(vty, "'>%s", VTY_NEWLINE); |
Holger Hans Peter Freyther | 8297c81 | 2011-11-18 23:14:24 +0100 | [diff] [blame] | 666 | |
| 667 | for (j = 0; j < vector_active(cnode->cmd_vector); ++j) { |
| 668 | struct cmd_element *elem; |
| 669 | elem = vector_slot(cnode->cmd_vector, j); |
| 670 | vty_dump_element(elem, vty); |
| 671 | } |
| 672 | |
| 673 | vty_out(vty, " </node>%s", VTY_NEWLINE); |
| 674 | } |
| 675 | |
| 676 | vty_out(vty, "</vtydoc>%s", VTY_NEWLINE); |
| 677 | |
| 678 | return 0; |
| 679 | } |
| 680 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 681 | /* Check if a command with given string exists at given node */ |
Harald Welte | addeaa3 | 2017-01-07 12:52:00 +0100 | [diff] [blame] | 682 | static int check_element_exists(struct cmd_node *cnode, const char *cmdstring) |
| 683 | { |
| 684 | int i; |
| 685 | |
| 686 | for (i = 0; i < vector_active(cnode->cmd_vector); ++i) { |
| 687 | struct cmd_element *elem; |
| 688 | elem = vector_slot(cnode->cmd_vector, i); |
| 689 | if (!elem->string) |
| 690 | continue; |
| 691 | if (!strcmp(elem->string, cmdstring)) |
| 692 | return 1; |
| 693 | } |
| 694 | return 0; |
| 695 | } |
| 696 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 697 | /*! Install a command into a node |
Harald Welte | 7acb30c | 2011-08-17 17:13:48 +0200 | [diff] [blame] | 698 | * \param[in] ntype Node Type |
| 699 | * \param[cmd] element to be installed |
| 700 | */ |
Holger Hans Peter Freyther | a9e5252 | 2015-08-02 02:14:07 +0000 | [diff] [blame] | 701 | void install_element(int ntype, struct cmd_element *cmd) |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 702 | { |
| 703 | struct cmd_node *cnode; |
| 704 | |
| 705 | cnode = vector_slot(cmdvec, ntype); |
| 706 | |
Harald Welte | a99d45a | 2015-11-12 13:48:23 +0100 | [diff] [blame] | 707 | OSMO_ASSERT(cnode); |
Harald Welte | addeaa3 | 2017-01-07 12:52:00 +0100 | [diff] [blame] | 708 | /* ensure no _identical_ command has been registered at this |
| 709 | * node so far */ |
| 710 | OSMO_ASSERT(!check_element_exists(cnode, cmd->string)); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 711 | |
| 712 | vector_set(cnode->cmd_vector, cmd); |
| 713 | |
| 714 | cmd->strvec = cmd_make_descvec(cmd->string, cmd->doc); |
| 715 | cmd->cmdsize = cmd_cmdsize(cmd->strvec); |
| 716 | } |
| 717 | |
| 718 | /* Install a command into VIEW and ENABLE node */ |
| 719 | void install_element_ve(struct cmd_element *cmd) |
| 720 | { |
| 721 | install_element(VIEW_NODE, cmd); |
| 722 | install_element(ENABLE_NODE, cmd); |
| 723 | } |
| 724 | |
| 725 | #ifdef VTY_CRYPT_PW |
| 726 | static unsigned char itoa64[] = |
| 727 | "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; |
| 728 | |
| 729 | static void to64(char *s, long v, int n) |
| 730 | { |
| 731 | while (--n >= 0) { |
| 732 | *s++ = itoa64[v & 0x3f]; |
| 733 | v >>= 6; |
| 734 | } |
| 735 | } |
| 736 | |
| 737 | static char *zencrypt(const char *passwd) |
| 738 | { |
| 739 | char salt[6]; |
| 740 | struct timeval tv; |
| 741 | char *crypt(const char *, const char *); |
| 742 | |
Neels Hofmeyr | 8e2f7e8 | 2016-09-22 03:58:13 +0200 | [diff] [blame] | 743 | osmo_gettimeofday(&tv, 0); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 744 | |
| 745 | to64(&salt[0], random(), 3); |
| 746 | to64(&salt[3], tv.tv_usec, 3); |
| 747 | salt[5] = '\0'; |
| 748 | |
| 749 | return crypt(passwd, salt); |
| 750 | } |
| 751 | #endif |
| 752 | |
| 753 | /* This function write configuration of this host. */ |
| 754 | static int config_write_host(struct vty *vty) |
| 755 | { |
| 756 | if (host.name) |
| 757 | vty_out(vty, "hostname %s%s", host.name, VTY_NEWLINE); |
| 758 | |
| 759 | if (host.encrypt) { |
| 760 | if (host.password_encrypt) |
| 761 | vty_out(vty, "password 8 %s%s", host.password_encrypt, |
| 762 | VTY_NEWLINE); |
| 763 | if (host.enable_encrypt) |
| 764 | vty_out(vty, "enable password 8 %s%s", |
| 765 | host.enable_encrypt, VTY_NEWLINE); |
| 766 | } else { |
| 767 | if (host.password) |
| 768 | vty_out(vty, "password %s%s", host.password, |
| 769 | VTY_NEWLINE); |
| 770 | if (host.enable) |
| 771 | vty_out(vty, "enable password %s%s", host.enable, |
| 772 | VTY_NEWLINE); |
| 773 | } |
| 774 | |
| 775 | if (host.advanced) |
| 776 | vty_out(vty, "service advanced-vty%s", VTY_NEWLINE); |
| 777 | |
| 778 | if (host.encrypt) |
| 779 | vty_out(vty, "service password-encryption%s", VTY_NEWLINE); |
| 780 | |
| 781 | if (host.lines >= 0) |
| 782 | vty_out(vty, "service terminal-length %d%s", host.lines, |
| 783 | VTY_NEWLINE); |
| 784 | |
| 785 | if (host.motdfile) |
| 786 | vty_out(vty, "banner motd file %s%s", host.motdfile, |
| 787 | VTY_NEWLINE); |
| 788 | else if (!host.motd) |
| 789 | vty_out(vty, "no banner motd%s", VTY_NEWLINE); |
| 790 | |
| 791 | return 1; |
| 792 | } |
| 793 | |
| 794 | /* Utility function for getting command vector. */ |
| 795 | static vector cmd_node_vector(vector v, enum node_type ntype) |
| 796 | { |
| 797 | struct cmd_node *cnode = vector_slot(v, ntype); |
| 798 | return cnode->cmd_vector; |
| 799 | } |
| 800 | |
| 801 | /* Completion match types. */ |
| 802 | enum match_type { |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 803 | no_match = 0, |
| 804 | any_match, |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 805 | extend_match, |
| 806 | ipv4_prefix_match, |
| 807 | ipv4_match, |
| 808 | ipv6_prefix_match, |
| 809 | ipv6_match, |
| 810 | range_match, |
| 811 | vararg_match, |
| 812 | partly_match, |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 813 | exact_match, |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 814 | }; |
| 815 | |
| 816 | static enum match_type cmd_ipv4_match(const char *str) |
| 817 | { |
| 818 | const char *sp; |
| 819 | int dots = 0, nums = 0; |
| 820 | char buf[4]; |
| 821 | |
| 822 | if (str == NULL) |
| 823 | return partly_match; |
| 824 | |
| 825 | for (;;) { |
| 826 | memset(buf, 0, sizeof(buf)); |
| 827 | sp = str; |
| 828 | while (*str != '\0') { |
| 829 | if (*str == '.') { |
| 830 | if (dots >= 3) |
| 831 | return no_match; |
| 832 | |
| 833 | if (*(str + 1) == '.') |
| 834 | return no_match; |
| 835 | |
| 836 | if (*(str + 1) == '\0') |
| 837 | return partly_match; |
| 838 | |
| 839 | dots++; |
| 840 | break; |
| 841 | } |
| 842 | if (!isdigit((int)*str)) |
| 843 | return no_match; |
| 844 | |
| 845 | str++; |
| 846 | } |
| 847 | |
| 848 | if (str - sp > 3) |
| 849 | return no_match; |
| 850 | |
| 851 | strncpy(buf, sp, str - sp); |
| 852 | if (atoi(buf) > 255) |
| 853 | return no_match; |
| 854 | |
| 855 | nums++; |
| 856 | |
| 857 | if (*str == '\0') |
| 858 | break; |
| 859 | |
| 860 | str++; |
| 861 | } |
| 862 | |
| 863 | if (nums < 4) |
| 864 | return partly_match; |
| 865 | |
| 866 | return exact_match; |
| 867 | } |
| 868 | |
| 869 | static enum match_type cmd_ipv4_prefix_match(const char *str) |
| 870 | { |
| 871 | const char *sp; |
| 872 | int dots = 0; |
| 873 | char buf[4]; |
| 874 | |
| 875 | if (str == NULL) |
| 876 | return partly_match; |
| 877 | |
| 878 | for (;;) { |
| 879 | memset(buf, 0, sizeof(buf)); |
| 880 | sp = str; |
| 881 | while (*str != '\0' && *str != '/') { |
| 882 | if (*str == '.') { |
| 883 | if (dots == 3) |
| 884 | return no_match; |
| 885 | |
| 886 | if (*(str + 1) == '.' || *(str + 1) == '/') |
| 887 | return no_match; |
| 888 | |
| 889 | if (*(str + 1) == '\0') |
| 890 | return partly_match; |
| 891 | |
| 892 | dots++; |
| 893 | break; |
| 894 | } |
| 895 | |
| 896 | if (!isdigit((int)*str)) |
| 897 | return no_match; |
| 898 | |
| 899 | str++; |
| 900 | } |
| 901 | |
| 902 | if (str - sp > 3) |
| 903 | return no_match; |
| 904 | |
| 905 | strncpy(buf, sp, str - sp); |
| 906 | if (atoi(buf) > 255) |
| 907 | return no_match; |
| 908 | |
| 909 | if (dots == 3) { |
| 910 | if (*str == '/') { |
| 911 | if (*(str + 1) == '\0') |
| 912 | return partly_match; |
| 913 | |
| 914 | str++; |
| 915 | break; |
| 916 | } else if (*str == '\0') |
| 917 | return partly_match; |
| 918 | } |
| 919 | |
| 920 | if (*str == '\0') |
| 921 | return partly_match; |
| 922 | |
| 923 | str++; |
| 924 | } |
| 925 | |
| 926 | sp = str; |
| 927 | while (*str != '\0') { |
| 928 | if (!isdigit((int)*str)) |
| 929 | return no_match; |
| 930 | |
| 931 | str++; |
| 932 | } |
| 933 | |
| 934 | if (atoi(sp) > 32) |
| 935 | return no_match; |
| 936 | |
| 937 | return exact_match; |
| 938 | } |
| 939 | |
| 940 | #define IPV6_ADDR_STR "0123456789abcdefABCDEF:.%" |
| 941 | #define IPV6_PREFIX_STR "0123456789abcdefABCDEF:.%/" |
| 942 | #define STATE_START 1 |
| 943 | #define STATE_COLON 2 |
| 944 | #define STATE_DOUBLE 3 |
| 945 | #define STATE_ADDR 4 |
| 946 | #define STATE_DOT 5 |
| 947 | #define STATE_SLASH 6 |
| 948 | #define STATE_MASK 7 |
| 949 | |
| 950 | #ifdef HAVE_IPV6 |
| 951 | |
| 952 | static enum match_type cmd_ipv6_match(const char *str) |
| 953 | { |
| 954 | int state = STATE_START; |
| 955 | int colons = 0, nums = 0, double_colon = 0; |
| 956 | const char *sp = NULL; |
| 957 | struct sockaddr_in6 sin6_dummy; |
| 958 | int ret; |
| 959 | |
| 960 | if (str == NULL) |
| 961 | return partly_match; |
| 962 | |
| 963 | if (strspn(str, IPV6_ADDR_STR) != strlen(str)) |
| 964 | return no_match; |
| 965 | |
| 966 | /* use inet_pton that has a better support, |
| 967 | * for example inet_pton can support the automatic addresses: |
| 968 | * ::1.2.3.4 |
| 969 | */ |
| 970 | ret = inet_pton(AF_INET6, str, &sin6_dummy.sin6_addr); |
| 971 | |
| 972 | if (ret == 1) |
| 973 | return exact_match; |
| 974 | |
| 975 | while (*str != '\0') { |
| 976 | switch (state) { |
| 977 | case STATE_START: |
| 978 | if (*str == ':') { |
| 979 | if (*(str + 1) != ':' && *(str + 1) != '\0') |
| 980 | return no_match; |
| 981 | colons--; |
| 982 | state = STATE_COLON; |
| 983 | } else { |
| 984 | sp = str; |
| 985 | state = STATE_ADDR; |
| 986 | } |
| 987 | |
| 988 | continue; |
| 989 | case STATE_COLON: |
| 990 | colons++; |
| 991 | if (*(str + 1) == ':') |
| 992 | state = STATE_DOUBLE; |
| 993 | else { |
| 994 | sp = str + 1; |
| 995 | state = STATE_ADDR; |
| 996 | } |
| 997 | break; |
| 998 | case STATE_DOUBLE: |
| 999 | if (double_colon) |
| 1000 | return no_match; |
| 1001 | |
| 1002 | if (*(str + 1) == ':') |
| 1003 | return no_match; |
| 1004 | else { |
| 1005 | if (*(str + 1) != '\0') |
| 1006 | colons++; |
| 1007 | sp = str + 1; |
| 1008 | state = STATE_ADDR; |
| 1009 | } |
| 1010 | |
| 1011 | double_colon++; |
| 1012 | nums++; |
| 1013 | break; |
| 1014 | case STATE_ADDR: |
| 1015 | if (*(str + 1) == ':' || *(str + 1) == '\0') { |
| 1016 | if (str - sp > 3) |
| 1017 | return no_match; |
| 1018 | |
| 1019 | nums++; |
| 1020 | state = STATE_COLON; |
| 1021 | } |
| 1022 | if (*(str + 1) == '.') |
| 1023 | state = STATE_DOT; |
| 1024 | break; |
| 1025 | case STATE_DOT: |
| 1026 | state = STATE_ADDR; |
| 1027 | break; |
| 1028 | default: |
| 1029 | break; |
| 1030 | } |
| 1031 | |
| 1032 | if (nums > 8) |
| 1033 | return no_match; |
| 1034 | |
| 1035 | if (colons > 7) |
| 1036 | return no_match; |
| 1037 | |
| 1038 | str++; |
| 1039 | } |
| 1040 | |
| 1041 | #if 0 |
| 1042 | if (nums < 11) |
| 1043 | return partly_match; |
| 1044 | #endif /* 0 */ |
| 1045 | |
| 1046 | return exact_match; |
| 1047 | } |
| 1048 | |
| 1049 | static enum match_type cmd_ipv6_prefix_match(const char *str) |
| 1050 | { |
| 1051 | int state = STATE_START; |
| 1052 | int colons = 0, nums = 0, double_colon = 0; |
| 1053 | int mask; |
| 1054 | const char *sp = NULL; |
| 1055 | char *endptr = NULL; |
| 1056 | |
| 1057 | if (str == NULL) |
| 1058 | return partly_match; |
| 1059 | |
| 1060 | if (strspn(str, IPV6_PREFIX_STR) != strlen(str)) |
| 1061 | return no_match; |
| 1062 | |
| 1063 | while (*str != '\0' && state != STATE_MASK) { |
| 1064 | switch (state) { |
| 1065 | case STATE_START: |
| 1066 | if (*str == ':') { |
| 1067 | if (*(str + 1) != ':' && *(str + 1) != '\0') |
| 1068 | return no_match; |
| 1069 | colons--; |
| 1070 | state = STATE_COLON; |
| 1071 | } else { |
| 1072 | sp = str; |
| 1073 | state = STATE_ADDR; |
| 1074 | } |
| 1075 | |
| 1076 | continue; |
| 1077 | case STATE_COLON: |
| 1078 | colons++; |
| 1079 | if (*(str + 1) == '/') |
| 1080 | return no_match; |
| 1081 | else if (*(str + 1) == ':') |
| 1082 | state = STATE_DOUBLE; |
| 1083 | else { |
| 1084 | sp = str + 1; |
| 1085 | state = STATE_ADDR; |
| 1086 | } |
| 1087 | break; |
| 1088 | case STATE_DOUBLE: |
| 1089 | if (double_colon) |
| 1090 | return no_match; |
| 1091 | |
| 1092 | if (*(str + 1) == ':') |
| 1093 | return no_match; |
| 1094 | else { |
| 1095 | if (*(str + 1) != '\0' && *(str + 1) != '/') |
| 1096 | colons++; |
| 1097 | sp = str + 1; |
| 1098 | |
| 1099 | if (*(str + 1) == '/') |
| 1100 | state = STATE_SLASH; |
| 1101 | else |
| 1102 | state = STATE_ADDR; |
| 1103 | } |
| 1104 | |
| 1105 | double_colon++; |
| 1106 | nums += 1; |
| 1107 | break; |
| 1108 | case STATE_ADDR: |
| 1109 | if (*(str + 1) == ':' || *(str + 1) == '.' |
| 1110 | || *(str + 1) == '\0' || *(str + 1) == '/') { |
| 1111 | if (str - sp > 3) |
| 1112 | return no_match; |
| 1113 | |
| 1114 | for (; sp <= str; sp++) |
| 1115 | if (*sp == '/') |
| 1116 | return no_match; |
| 1117 | |
| 1118 | nums++; |
| 1119 | |
| 1120 | if (*(str + 1) == ':') |
| 1121 | state = STATE_COLON; |
| 1122 | else if (*(str + 1) == '.') |
| 1123 | state = STATE_DOT; |
| 1124 | else if (*(str + 1) == '/') |
| 1125 | state = STATE_SLASH; |
| 1126 | } |
| 1127 | break; |
| 1128 | case STATE_DOT: |
| 1129 | state = STATE_ADDR; |
| 1130 | break; |
| 1131 | case STATE_SLASH: |
| 1132 | if (*(str + 1) == '\0') |
| 1133 | return partly_match; |
| 1134 | |
| 1135 | state = STATE_MASK; |
| 1136 | break; |
| 1137 | default: |
| 1138 | break; |
| 1139 | } |
| 1140 | |
| 1141 | if (nums > 11) |
| 1142 | return no_match; |
| 1143 | |
| 1144 | if (colons > 7) |
| 1145 | return no_match; |
| 1146 | |
| 1147 | str++; |
| 1148 | } |
| 1149 | |
| 1150 | if (state < STATE_MASK) |
| 1151 | return partly_match; |
| 1152 | |
| 1153 | mask = strtol(str, &endptr, 10); |
| 1154 | if (*endptr != '\0') |
| 1155 | return no_match; |
| 1156 | |
| 1157 | if (mask < 0 || mask > 128) |
| 1158 | return no_match; |
| 1159 | |
| 1160 | /* I don't know why mask < 13 makes command match partly. |
| 1161 | Forgive me to make this comments. I Want to set static default route |
| 1162 | because of lack of function to originate default in ospf6d; sorry |
| 1163 | yasu |
| 1164 | if (mask < 13) |
| 1165 | return partly_match; |
| 1166 | */ |
| 1167 | |
| 1168 | return exact_match; |
| 1169 | } |
| 1170 | |
| 1171 | #endif /* HAVE_IPV6 */ |
| 1172 | |
| 1173 | #define DECIMAL_STRLEN_MAX 10 |
| 1174 | |
| 1175 | static int cmd_range_match(const char *range, const char *str) |
| 1176 | { |
| 1177 | char *p; |
| 1178 | char buf[DECIMAL_STRLEN_MAX + 1]; |
| 1179 | char *endptr = NULL; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1180 | |
| 1181 | if (str == NULL) |
| 1182 | return 1; |
| 1183 | |
Andreas Eversberg | 33f0fc3 | 2010-07-13 13:50:39 +0200 | [diff] [blame] | 1184 | if (range[1] == '-') { |
| 1185 | signed long min = 0, max = 0, val; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1186 | |
Andreas Eversberg | 33f0fc3 | 2010-07-13 13:50:39 +0200 | [diff] [blame] | 1187 | val = strtol(str, &endptr, 10); |
| 1188 | if (*endptr != '\0') |
| 1189 | return 0; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1190 | |
Andreas Eversberg | 33f0fc3 | 2010-07-13 13:50:39 +0200 | [diff] [blame] | 1191 | range += 2; |
| 1192 | p = strchr(range, '-'); |
| 1193 | if (p == NULL) |
| 1194 | return 0; |
| 1195 | if (p - range > DECIMAL_STRLEN_MAX) |
| 1196 | return 0; |
| 1197 | strncpy(buf, range, p - range); |
| 1198 | buf[p - range] = '\0'; |
| 1199 | min = -strtol(buf, &endptr, 10); |
| 1200 | if (*endptr != '\0') |
| 1201 | return 0; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1202 | |
Andreas Eversberg | 33f0fc3 | 2010-07-13 13:50:39 +0200 | [diff] [blame] | 1203 | range = p + 1; |
| 1204 | p = strchr(range, '>'); |
| 1205 | if (p == NULL) |
| 1206 | return 0; |
| 1207 | if (p - range > DECIMAL_STRLEN_MAX) |
| 1208 | return 0; |
| 1209 | strncpy(buf, range, p - range); |
| 1210 | buf[p - range] = '\0'; |
| 1211 | max = strtol(buf, &endptr, 10); |
| 1212 | if (*endptr != '\0') |
| 1213 | return 0; |
| 1214 | |
| 1215 | if (val < min || val > max) |
| 1216 | return 0; |
| 1217 | } else { |
| 1218 | unsigned long min, max, val; |
| 1219 | |
| 1220 | val = strtoul(str, &endptr, 10); |
| 1221 | if (*endptr != '\0') |
| 1222 | return 0; |
| 1223 | |
| 1224 | range++; |
| 1225 | p = strchr(range, '-'); |
| 1226 | if (p == NULL) |
| 1227 | return 0; |
| 1228 | if (p - range > DECIMAL_STRLEN_MAX) |
| 1229 | return 0; |
| 1230 | strncpy(buf, range, p - range); |
| 1231 | buf[p - range] = '\0'; |
| 1232 | min = strtoul(buf, &endptr, 10); |
| 1233 | if (*endptr != '\0') |
| 1234 | return 0; |
| 1235 | |
| 1236 | range = p + 1; |
| 1237 | p = strchr(range, '>'); |
| 1238 | if (p == NULL) |
| 1239 | return 0; |
| 1240 | if (p - range > DECIMAL_STRLEN_MAX) |
| 1241 | return 0; |
| 1242 | strncpy(buf, range, p - range); |
| 1243 | buf[p - range] = '\0'; |
| 1244 | max = strtoul(buf, &endptr, 10); |
| 1245 | if (*endptr != '\0') |
| 1246 | return 0; |
| 1247 | |
| 1248 | if (val < min || val > max) |
| 1249 | return 0; |
| 1250 | } |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1251 | |
| 1252 | return 1; |
| 1253 | } |
| 1254 | |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1255 | /* helper to retrieve the 'real' argument string from an optional argument */ |
| 1256 | static char * |
| 1257 | cmd_deopt(const char *str) |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1258 | { |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1259 | /* we've got "[blah]". We want to strip off the []s and redo the |
| 1260 | * match check for "blah" |
| 1261 | */ |
| 1262 | size_t len = strlen(str); |
| 1263 | char *tmp; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1264 | |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1265 | if (len < 3) |
| 1266 | return NULL; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1267 | |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1268 | /* tmp will hold a string of len-2 chars, so 'len' size is fine */ |
| 1269 | tmp = talloc_size(NULL, len); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1270 | |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1271 | memcpy(tmp, (str + 1), len - 2); |
| 1272 | tmp[len - 2] = '\0'; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1273 | |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1274 | return tmp; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1275 | } |
| 1276 | |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1277 | static enum match_type |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1278 | cmd_match(const char *str, const char *command, |
| 1279 | enum match_type min, bool recur) |
| 1280 | { |
| 1281 | |
| 1282 | if (recur && CMD_OPTION(str)) |
| 1283 | { |
| 1284 | enum match_type ret; |
| 1285 | char *tmp = cmd_deopt(str); |
| 1286 | |
| 1287 | /* this would be a bug in a command, however handle it gracefully |
| 1288 | * as it we only discover it if a user tries to run it |
| 1289 | */ |
| 1290 | if (tmp == NULL) |
| 1291 | return no_match; |
| 1292 | |
| 1293 | ret = cmd_match(tmp, command, min, false); |
| 1294 | |
| 1295 | talloc_free(tmp); |
| 1296 | |
| 1297 | return ret; |
| 1298 | } |
| 1299 | else if (CMD_VARARG(str)) |
| 1300 | return vararg_match; |
| 1301 | else if (CMD_RANGE(str)) |
| 1302 | { |
| 1303 | if (cmd_range_match(str, command)) |
| 1304 | return range_match; |
| 1305 | } |
| 1306 | #ifdef HAVE_IPV6 |
| 1307 | else if (CMD_IPV6(str)) |
| 1308 | { |
| 1309 | if (cmd_ipv6_match(command) >= min) |
| 1310 | return ipv6_match; |
| 1311 | } |
| 1312 | else if (CMD_IPV6_PREFIX(str)) |
| 1313 | { |
| 1314 | if (cmd_ipv6_prefix_match(command) >= min) |
| 1315 | return ipv6_prefix_match; |
| 1316 | } |
| 1317 | #endif /* HAVE_IPV6 */ |
| 1318 | else if (CMD_IPV4(str)) |
| 1319 | { |
| 1320 | if (cmd_ipv4_match(command) >= min) |
| 1321 | return ipv4_match; |
| 1322 | } |
| 1323 | else if (CMD_IPV4_PREFIX(str)) |
| 1324 | { |
| 1325 | if (cmd_ipv4_prefix_match(command) >= min) |
| 1326 | return ipv4_prefix_match; |
| 1327 | } |
| 1328 | else if (CMD_VARIABLE(str)) |
| 1329 | return extend_match; |
| 1330 | else if (strncmp(command, str, strlen(command)) == 0) |
| 1331 | { |
| 1332 | if (strcmp(command, str) == 0) |
| 1333 | return exact_match; |
| 1334 | else if (partly_match >= min) |
| 1335 | return partly_match; |
| 1336 | } |
| 1337 | |
| 1338 | return no_match; |
| 1339 | } |
| 1340 | |
| 1341 | /* Filter vector at the specified index and by the given command string, to |
| 1342 | * the desired matching level (thus allowing part matches), and return match |
| 1343 | * type flag. |
| 1344 | */ |
| 1345 | static enum match_type |
| 1346 | cmd_filter(char *command, vector v, unsigned int index, enum match_type level) |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1347 | { |
| 1348 | unsigned int i; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1349 | struct cmd_element *cmd_element; |
| 1350 | enum match_type match_type; |
| 1351 | vector descvec; |
| 1352 | struct desc *desc; |
| 1353 | |
| 1354 | match_type = no_match; |
| 1355 | |
| 1356 | /* If command and cmd_element string does not match set NULL to vector */ |
| 1357 | for (i = 0; i < vector_active(v); i++) |
| 1358 | if ((cmd_element = vector_slot(v, i)) != NULL) { |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1359 | if (index >= vector_active(cmd_element->strvec)) |
| 1360 | vector_slot(v, i) = NULL; |
| 1361 | else { |
| 1362 | unsigned int j; |
| 1363 | int matched = 0; |
| 1364 | |
| 1365 | descvec = |
| 1366 | vector_slot(cmd_element->strvec, index); |
| 1367 | |
| 1368 | for (j = 0; j < vector_active(descvec); j++) |
| 1369 | if ((desc = vector_slot(descvec, j))) { |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1370 | enum match_type ret; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1371 | |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1372 | ret = cmd_match (desc->cmd, command, level, true); |
| 1373 | |
| 1374 | if (ret != no_match) |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1375 | matched++; |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1376 | |
| 1377 | if (match_type < ret) |
| 1378 | match_type = ret; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1379 | } |
| 1380 | if (!matched) |
| 1381 | vector_slot(v, i) = NULL; |
| 1382 | } |
| 1383 | } |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1384 | |
| 1385 | if (match_type == no_match) |
| 1386 | return no_match; |
| 1387 | |
| 1388 | /* 2nd pass: We now know the 'strongest' match type for the index, so we |
| 1389 | * go again and filter out commands whose argument (at this index) is |
| 1390 | * 'weaker'. E.g., if we have 2 commands: |
| 1391 | * |
| 1392 | * foo bar <1-255> |
| 1393 | * foo bar BLAH |
| 1394 | * |
| 1395 | * and the command string is 'foo bar 10', then we will get here with with |
| 1396 | * 'range_match' being the strongest match. However, if 'BLAH' came |
| 1397 | * earlier, it won't have been filtered out (as a CMD_VARIABLE allows "10"). |
| 1398 | * |
| 1399 | * If we don't do a 2nd pass and filter it out, the higher-layers will |
| 1400 | * consider this to be ambiguous. |
| 1401 | */ |
| 1402 | for (i = 0; i < vector_active(v); i++) |
| 1403 | if ((cmd_element = vector_slot(v, i)) != NULL) { |
| 1404 | if (index >= vector_active(cmd_element->strvec)) |
| 1405 | vector_slot(v, i) = NULL; |
| 1406 | else { |
| 1407 | unsigned int j; |
| 1408 | int matched = 0; |
| 1409 | |
| 1410 | descvec = |
| 1411 | vector_slot(cmd_element->strvec, index); |
| 1412 | |
| 1413 | for (j = 0; j < vector_active(descvec); j++) |
| 1414 | if ((desc = vector_slot(descvec, j))) { |
| 1415 | enum match_type ret; |
| 1416 | |
| 1417 | ret = cmd_match(desc->cmd, command, any_match, true); |
| 1418 | |
| 1419 | if (ret >= match_type) |
| 1420 | matched++; |
| 1421 | } |
| 1422 | if (!matched) |
| 1423 | vector_slot(v, i) = NULL; |
| 1424 | } |
| 1425 | } |
| 1426 | |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1427 | return match_type; |
| 1428 | } |
| 1429 | |
| 1430 | /* Check ambiguous match */ |
| 1431 | static int |
| 1432 | is_cmd_ambiguous(char *command, vector v, int index, enum match_type type) |
| 1433 | { |
| 1434 | unsigned int i; |
| 1435 | unsigned int j; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1436 | struct cmd_element *cmd_element; |
| 1437 | const char *matched = NULL; |
| 1438 | vector descvec; |
| 1439 | struct desc *desc; |
| 1440 | |
| 1441 | for (i = 0; i < vector_active(v); i++) |
| 1442 | if ((cmd_element = vector_slot(v, i)) != NULL) { |
| 1443 | int match = 0; |
| 1444 | |
| 1445 | descvec = vector_slot(cmd_element->strvec, index); |
| 1446 | |
| 1447 | for (j = 0; j < vector_active(descvec); j++) |
| 1448 | if ((desc = vector_slot(descvec, j))) { |
| 1449 | enum match_type ret; |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1450 | const char *str = desc->cmd; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1451 | |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1452 | if (CMD_OPTION(str)) |
| 1453 | if ((str = cmd_deopt(str)) == NULL) |
| 1454 | continue; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1455 | |
| 1456 | switch (type) { |
| 1457 | case exact_match: |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1458 | if (!(CMD_VARIABLE (str)) |
| 1459 | && strcmp(command, str) == 0) |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1460 | match++; |
| 1461 | break; |
| 1462 | case partly_match: |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1463 | if (!(CMD_VARIABLE (str)) |
| 1464 | && strncmp(command, str, strlen (command)) == 0) |
| 1465 | { |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1466 | if (matched |
| 1467 | && strcmp(matched, |
| 1468 | str) != 0) |
| 1469 | return 1; /* There is ambiguous match. */ |
| 1470 | else |
| 1471 | matched = str; |
| 1472 | match++; |
| 1473 | } |
| 1474 | break; |
| 1475 | case range_match: |
| 1476 | if (cmd_range_match |
| 1477 | (str, command)) { |
| 1478 | if (matched |
| 1479 | && strcmp(matched, |
| 1480 | str) != 0) |
| 1481 | return 1; |
| 1482 | else |
| 1483 | matched = str; |
| 1484 | match++; |
| 1485 | } |
| 1486 | break; |
| 1487 | #ifdef HAVE_IPV6 |
| 1488 | case ipv6_match: |
| 1489 | if (CMD_IPV6(str)) |
| 1490 | match++; |
| 1491 | break; |
| 1492 | case ipv6_prefix_match: |
| 1493 | if ((ret = |
| 1494 | cmd_ipv6_prefix_match |
| 1495 | (command)) != no_match) { |
| 1496 | if (ret == partly_match) |
| 1497 | return 2; /* There is incomplete match. */ |
| 1498 | |
| 1499 | match++; |
| 1500 | } |
| 1501 | break; |
| 1502 | #endif /* HAVE_IPV6 */ |
| 1503 | case ipv4_match: |
| 1504 | if (CMD_IPV4(str)) |
| 1505 | match++; |
| 1506 | break; |
| 1507 | case ipv4_prefix_match: |
| 1508 | if ((ret = |
| 1509 | cmd_ipv4_prefix_match |
| 1510 | (command)) != no_match) { |
| 1511 | if (ret == partly_match) |
| 1512 | return 2; /* There is incomplete match. */ |
| 1513 | |
| 1514 | match++; |
| 1515 | } |
| 1516 | break; |
| 1517 | case extend_match: |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1518 | if (CMD_VARIABLE (str)) |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1519 | match++; |
| 1520 | break; |
| 1521 | case no_match: |
| 1522 | default: |
| 1523 | break; |
| 1524 | } |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1525 | |
| 1526 | if (CMD_OPTION(desc->cmd)) |
| 1527 | talloc_free((void*)str); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1528 | } |
| 1529 | if (!match) |
| 1530 | vector_slot(v, i) = NULL; |
| 1531 | } |
| 1532 | return 0; |
| 1533 | } |
| 1534 | |
| 1535 | /* If src matches dst return dst string, otherwise return NULL */ |
| 1536 | static const char *cmd_entry_function(const char *src, const char *dst) |
| 1537 | { |
| 1538 | /* Skip variable arguments. */ |
| 1539 | if (CMD_OPTION(dst) || CMD_VARIABLE(dst) || CMD_VARARG(dst) || |
| 1540 | CMD_IPV4(dst) || CMD_IPV4_PREFIX(dst) || CMD_RANGE(dst)) |
| 1541 | return NULL; |
| 1542 | |
| 1543 | /* In case of 'command \t', given src is NULL string. */ |
| 1544 | if (src == NULL) |
| 1545 | return dst; |
| 1546 | |
| 1547 | /* Matched with input string. */ |
| 1548 | if (strncmp(src, dst, strlen(src)) == 0) |
| 1549 | return dst; |
| 1550 | |
| 1551 | return NULL; |
| 1552 | } |
| 1553 | |
| 1554 | /* If src matches dst return dst string, otherwise return NULL */ |
| 1555 | /* This version will return the dst string always if it is |
| 1556 | CMD_VARIABLE for '?' key processing */ |
| 1557 | static const char *cmd_entry_function_desc(const char *src, const char *dst) |
| 1558 | { |
| 1559 | if (CMD_VARARG(dst)) |
| 1560 | return dst; |
| 1561 | |
| 1562 | if (CMD_RANGE(dst)) { |
| 1563 | if (cmd_range_match(dst, src)) |
| 1564 | return dst; |
| 1565 | else |
| 1566 | return NULL; |
| 1567 | } |
| 1568 | #ifdef HAVE_IPV6 |
| 1569 | if (CMD_IPV6(dst)) { |
| 1570 | if (cmd_ipv6_match(src)) |
| 1571 | return dst; |
| 1572 | else |
| 1573 | return NULL; |
| 1574 | } |
| 1575 | |
| 1576 | if (CMD_IPV6_PREFIX(dst)) { |
| 1577 | if (cmd_ipv6_prefix_match(src)) |
| 1578 | return dst; |
| 1579 | else |
| 1580 | return NULL; |
| 1581 | } |
| 1582 | #endif /* HAVE_IPV6 */ |
| 1583 | |
| 1584 | if (CMD_IPV4(dst)) { |
| 1585 | if (cmd_ipv4_match(src)) |
| 1586 | return dst; |
| 1587 | else |
| 1588 | return NULL; |
| 1589 | } |
| 1590 | |
| 1591 | if (CMD_IPV4_PREFIX(dst)) { |
| 1592 | if (cmd_ipv4_prefix_match(src)) |
| 1593 | return dst; |
| 1594 | else |
| 1595 | return NULL; |
| 1596 | } |
| 1597 | |
| 1598 | /* Optional or variable commands always match on '?' */ |
| 1599 | if (CMD_OPTION(dst) || CMD_VARIABLE(dst)) |
| 1600 | return dst; |
| 1601 | |
| 1602 | /* In case of 'command \t', given src is NULL string. */ |
| 1603 | if (src == NULL) |
| 1604 | return dst; |
| 1605 | |
| 1606 | if (strncmp(src, dst, strlen(src)) == 0) |
| 1607 | return dst; |
| 1608 | else |
| 1609 | return NULL; |
| 1610 | } |
| 1611 | |
| 1612 | /* Check same string element existence. If it isn't there return |
| 1613 | 1. */ |
| 1614 | static int cmd_unique_string(vector v, const char *str) |
| 1615 | { |
| 1616 | unsigned int i; |
| 1617 | char *match; |
| 1618 | |
| 1619 | for (i = 0; i < vector_active(v); i++) |
| 1620 | if ((match = vector_slot(v, i)) != NULL) |
| 1621 | if (strcmp(match, str) == 0) |
| 1622 | return 0; |
| 1623 | return 1; |
| 1624 | } |
| 1625 | |
| 1626 | /* Compare string to description vector. If there is same string |
| 1627 | return 1 else return 0. */ |
| 1628 | static int desc_unique_string(vector v, const char *str) |
| 1629 | { |
| 1630 | unsigned int i; |
| 1631 | struct desc *desc; |
| 1632 | |
| 1633 | for (i = 0; i < vector_active(v); i++) |
| 1634 | if ((desc = vector_slot(v, i)) != NULL) |
| 1635 | if (strcmp(desc->cmd, str) == 0) |
| 1636 | return 1; |
| 1637 | return 0; |
| 1638 | } |
| 1639 | |
| 1640 | static int cmd_try_do_shortcut(enum node_type node, char *first_word) |
| 1641 | { |
| 1642 | if (first_word != NULL && |
| 1643 | node != AUTH_NODE && |
| 1644 | node != VIEW_NODE && |
| 1645 | node != AUTH_ENABLE_NODE && |
| 1646 | node != ENABLE_NODE && 0 == strcmp("do", first_word)) |
| 1647 | return 1; |
| 1648 | return 0; |
| 1649 | } |
| 1650 | |
| 1651 | /* '?' describe command support. */ |
| 1652 | static vector |
| 1653 | cmd_describe_command_real(vector vline, struct vty *vty, int *status) |
| 1654 | { |
| 1655 | unsigned int i; |
| 1656 | vector cmd_vector; |
| 1657 | #define INIT_MATCHVEC_SIZE 10 |
| 1658 | vector matchvec; |
| 1659 | struct cmd_element *cmd_element; |
| 1660 | unsigned int index; |
| 1661 | int ret; |
| 1662 | enum match_type match; |
| 1663 | char *command; |
| 1664 | static struct desc desc_cr = { "<cr>", "" }; |
| 1665 | |
| 1666 | /* Set index. */ |
| 1667 | if (vector_active(vline) == 0) { |
| 1668 | *status = CMD_ERR_NO_MATCH; |
| 1669 | return NULL; |
| 1670 | } else |
| 1671 | index = vector_active(vline) - 1; |
| 1672 | |
| 1673 | /* Make copy vector of current node's command vector. */ |
| 1674 | cmd_vector = vector_copy(cmd_node_vector(cmdvec, vty->node)); |
| 1675 | |
| 1676 | /* Prepare match vector */ |
| 1677 | matchvec = vector_init(INIT_MATCHVEC_SIZE); |
| 1678 | |
| 1679 | /* Filter commands. */ |
| 1680 | /* Only words precedes current word will be checked in this loop. */ |
Harald Welte | 80d30fe | 2013-02-12 11:08:57 +0100 | [diff] [blame] | 1681 | for (i = 0; i < index; i++) { |
| 1682 | command = vector_slot(vline, i); |
| 1683 | if (!command) |
| 1684 | continue; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1685 | |
Harald Welte | 80d30fe | 2013-02-12 11:08:57 +0100 | [diff] [blame] | 1686 | match = cmd_filter(command, cmd_vector, i, any_match); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1687 | |
Harald Welte | 80d30fe | 2013-02-12 11:08:57 +0100 | [diff] [blame] | 1688 | if (match == vararg_match) { |
| 1689 | struct cmd_element *cmd_element; |
| 1690 | vector descvec; |
| 1691 | unsigned int j, k; |
| 1692 | |
| 1693 | for (j = 0; j < vector_active(cmd_vector); j++) |
| 1694 | if ((cmd_element = |
| 1695 | vector_slot(cmd_vector, j)) != NULL |
| 1696 | && |
| 1697 | (vector_active(cmd_element->strvec))) { |
| 1698 | descvec = |
| 1699 | vector_slot(cmd_element-> |
| 1700 | strvec, |
| 1701 | vector_active |
| 1702 | (cmd_element-> |
| 1703 | strvec) - 1); |
| 1704 | for (k = 0; |
| 1705 | k < vector_active(descvec); |
| 1706 | k++) { |
| 1707 | struct desc *desc = |
| 1708 | vector_slot(descvec, |
| 1709 | k); |
| 1710 | vector_set(matchvec, |
| 1711 | desc); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1712 | } |
Harald Welte | 80d30fe | 2013-02-12 11:08:57 +0100 | [diff] [blame] | 1713 | } |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1714 | |
Harald Welte | 80d30fe | 2013-02-12 11:08:57 +0100 | [diff] [blame] | 1715 | vector_set(matchvec, &desc_cr); |
| 1716 | vector_free(cmd_vector); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1717 | |
Harald Welte | 80d30fe | 2013-02-12 11:08:57 +0100 | [diff] [blame] | 1718 | return matchvec; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1719 | } |
| 1720 | |
Harald Welte | 80d30fe | 2013-02-12 11:08:57 +0100 | [diff] [blame] | 1721 | if ((ret = is_cmd_ambiguous(command, cmd_vector, i, |
| 1722 | match)) == 1) { |
| 1723 | vector_free(cmd_vector); |
Holger Hans Peter Freyther | 047213b | 2013-07-03 09:32:37 +0200 | [diff] [blame] | 1724 | vector_free(matchvec); |
Harald Welte | 80d30fe | 2013-02-12 11:08:57 +0100 | [diff] [blame] | 1725 | *status = CMD_ERR_AMBIGUOUS; |
| 1726 | return NULL; |
| 1727 | } else if (ret == 2) { |
| 1728 | vector_free(cmd_vector); |
Holger Hans Peter Freyther | 047213b | 2013-07-03 09:32:37 +0200 | [diff] [blame] | 1729 | vector_free(matchvec); |
Harald Welte | 80d30fe | 2013-02-12 11:08:57 +0100 | [diff] [blame] | 1730 | *status = CMD_ERR_NO_MATCH; |
| 1731 | return NULL; |
| 1732 | } |
| 1733 | } |
| 1734 | |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1735 | /* Prepare match vector */ |
| 1736 | /* matchvec = vector_init (INIT_MATCHVEC_SIZE); */ |
| 1737 | |
| 1738 | /* Make sure that cmd_vector is filtered based on current word */ |
| 1739 | command = vector_slot(vline, index); |
| 1740 | if (command) |
Vadim Yanitskiy | 49a0dec | 2017-06-12 03:49:38 +0700 | [diff] [blame] | 1741 | cmd_filter(command, cmd_vector, index, any_match); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1742 | |
| 1743 | /* Make description vector. */ |
Harald Welte | 80d30fe | 2013-02-12 11:08:57 +0100 | [diff] [blame] | 1744 | for (i = 0; i < vector_active(cmd_vector); i++) { |
| 1745 | const char *string = NULL; |
| 1746 | vector strvec; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1747 | |
Harald Welte | 80d30fe | 2013-02-12 11:08:57 +0100 | [diff] [blame] | 1748 | cmd_element = vector_slot(cmd_vector, i); |
| 1749 | if (!cmd_element) |
| 1750 | continue; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1751 | |
Harald Welte | d17aa59 | 2013-02-12 11:11:34 +0100 | [diff] [blame] | 1752 | if (cmd_element->attr & (CMD_ATTR_DEPRECATED|CMD_ATTR_HIDDEN)) |
| 1753 | continue; |
| 1754 | |
Harald Welte | 80d30fe | 2013-02-12 11:08:57 +0100 | [diff] [blame] | 1755 | strvec = cmd_element->strvec; |
| 1756 | |
| 1757 | /* if command is NULL, index may be equal to vector_active */ |
| 1758 | if (command && index >= vector_active(strvec)) |
| 1759 | vector_slot(cmd_vector, i) = NULL; |
| 1760 | else { |
| 1761 | /* Check if command is completed. */ |
| 1762 | if (command == NULL |
| 1763 | && index == vector_active(strvec)) { |
| 1764 | string = "<cr>"; |
| 1765 | if (!desc_unique_string(matchvec, string)) |
| 1766 | vector_set(matchvec, &desc_cr); |
| 1767 | } else { |
| 1768 | unsigned int j; |
| 1769 | vector descvec = vector_slot(strvec, index); |
| 1770 | struct desc *desc; |
| 1771 | |
| 1772 | for (j = 0; j < vector_active(descvec); j++) { |
| 1773 | desc = vector_slot(descvec, j); |
| 1774 | if (!desc) |
| 1775 | continue; |
| 1776 | string = cmd_entry_function_desc |
| 1777 | (command, desc->cmd); |
| 1778 | if (!string) |
| 1779 | continue; |
| 1780 | /* Uniqueness check */ |
| 1781 | if (!desc_unique_string(matchvec, string)) |
| 1782 | vector_set(matchvec, desc); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1783 | } |
| 1784 | } |
| 1785 | } |
Harald Welte | 80d30fe | 2013-02-12 11:08:57 +0100 | [diff] [blame] | 1786 | } |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1787 | vector_free(cmd_vector); |
| 1788 | |
| 1789 | if (vector_slot(matchvec, 0) == NULL) { |
| 1790 | vector_free(matchvec); |
| 1791 | *status = CMD_ERR_NO_MATCH; |
| 1792 | } else |
| 1793 | *status = CMD_SUCCESS; |
| 1794 | |
| 1795 | return matchvec; |
| 1796 | } |
| 1797 | |
| 1798 | vector cmd_describe_command(vector vline, struct vty * vty, int *status) |
| 1799 | { |
| 1800 | vector ret; |
| 1801 | |
| 1802 | if (cmd_try_do_shortcut(vty->node, vector_slot(vline, 0))) { |
| 1803 | enum node_type onode; |
| 1804 | vector shifted_vline; |
| 1805 | unsigned int index; |
| 1806 | |
| 1807 | onode = vty->node; |
| 1808 | vty->node = ENABLE_NODE; |
| 1809 | /* We can try it on enable node, cos' the vty is authenticated */ |
| 1810 | |
| 1811 | shifted_vline = vector_init(vector_count(vline)); |
| 1812 | /* use memcpy? */ |
| 1813 | for (index = 1; index < vector_active(vline); index++) { |
| 1814 | vector_set_index(shifted_vline, index - 1, |
| 1815 | vector_lookup(vline, index)); |
| 1816 | } |
| 1817 | |
| 1818 | ret = cmd_describe_command_real(shifted_vline, vty, status); |
| 1819 | |
| 1820 | vector_free(shifted_vline); |
| 1821 | vty->node = onode; |
| 1822 | return ret; |
| 1823 | } |
| 1824 | |
| 1825 | return cmd_describe_command_real(vline, vty, status); |
| 1826 | } |
| 1827 | |
| 1828 | /* Check LCD of matched command. */ |
| 1829 | static int cmd_lcd(char **matched) |
| 1830 | { |
| 1831 | int i; |
| 1832 | int j; |
| 1833 | int lcd = -1; |
| 1834 | char *s1, *s2; |
| 1835 | char c1, c2; |
| 1836 | |
| 1837 | if (matched[0] == NULL || matched[1] == NULL) |
| 1838 | return 0; |
| 1839 | |
| 1840 | for (i = 1; matched[i] != NULL; i++) { |
| 1841 | s1 = matched[i - 1]; |
| 1842 | s2 = matched[i]; |
| 1843 | |
| 1844 | for (j = 0; (c1 = s1[j]) && (c2 = s2[j]); j++) |
| 1845 | if (c1 != c2) |
| 1846 | break; |
| 1847 | |
| 1848 | if (lcd < 0) |
| 1849 | lcd = j; |
| 1850 | else { |
| 1851 | if (lcd > j) |
| 1852 | lcd = j; |
| 1853 | } |
| 1854 | } |
| 1855 | return lcd; |
| 1856 | } |
| 1857 | |
| 1858 | /* Command line completion support. */ |
| 1859 | static char **cmd_complete_command_real(vector vline, struct vty *vty, |
| 1860 | int *status) |
| 1861 | { |
| 1862 | unsigned int i; |
| 1863 | vector cmd_vector = vector_copy(cmd_node_vector(cmdvec, vty->node)); |
| 1864 | #define INIT_MATCHVEC_SIZE 10 |
| 1865 | vector matchvec; |
| 1866 | struct cmd_element *cmd_element; |
| 1867 | unsigned int index; |
| 1868 | char **match_str; |
| 1869 | struct desc *desc; |
| 1870 | vector descvec; |
| 1871 | char *command; |
| 1872 | int lcd; |
| 1873 | |
| 1874 | if (vector_active(vline) == 0) { |
| 1875 | *status = CMD_ERR_NO_MATCH; |
Holger Hans Peter Freyther | 047213b | 2013-07-03 09:32:37 +0200 | [diff] [blame] | 1876 | vector_free(cmd_vector); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1877 | return NULL; |
| 1878 | } else |
| 1879 | index = vector_active(vline) - 1; |
| 1880 | |
| 1881 | /* First, filter by preceeding command string */ |
| 1882 | for (i = 0; i < index; i++) |
| 1883 | if ((command = vector_slot(vline, i))) { |
| 1884 | enum match_type match; |
| 1885 | int ret; |
| 1886 | |
| 1887 | /* First try completion match, if there is exactly match return 1 */ |
| 1888 | match = |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 1889 | cmd_filter(command, cmd_vector, i, any_match); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 1890 | |
| 1891 | /* If there is exact match then filter ambiguous match else check |
| 1892 | ambiguousness. */ |
| 1893 | if ((ret = |
| 1894 | is_cmd_ambiguous(command, cmd_vector, i, |
| 1895 | match)) == 1) { |
| 1896 | vector_free(cmd_vector); |
| 1897 | *status = CMD_ERR_AMBIGUOUS; |
| 1898 | return NULL; |
| 1899 | } |
| 1900 | /* |
| 1901 | else if (ret == 2) |
| 1902 | { |
| 1903 | vector_free (cmd_vector); |
| 1904 | *status = CMD_ERR_NO_MATCH; |
| 1905 | return NULL; |
| 1906 | } |
| 1907 | */ |
| 1908 | } |
| 1909 | |
| 1910 | /* Prepare match vector. */ |
| 1911 | matchvec = vector_init(INIT_MATCHVEC_SIZE); |
| 1912 | |
| 1913 | /* Now we got into completion */ |
| 1914 | for (i = 0; i < vector_active(cmd_vector); i++) |
| 1915 | if ((cmd_element = vector_slot(cmd_vector, i))) { |
| 1916 | const char *string; |
| 1917 | vector strvec = cmd_element->strvec; |
| 1918 | |
| 1919 | /* Check field length */ |
| 1920 | if (index >= vector_active(strvec)) |
| 1921 | vector_slot(cmd_vector, i) = NULL; |
| 1922 | else { |
| 1923 | unsigned int j; |
| 1924 | |
| 1925 | descvec = vector_slot(strvec, index); |
| 1926 | for (j = 0; j < vector_active(descvec); j++) |
| 1927 | if ((desc = vector_slot(descvec, j))) { |
| 1928 | if ((string = cmd_entry_function(vector_slot(vline, index), desc->cmd))) |
| 1929 | if (cmd_unique_string (matchvec, string)) |
| 1930 | vector_set (matchvec, talloc_strdup(tall_vty_cmd_ctx, string)); |
| 1931 | } |
| 1932 | } |
| 1933 | } |
| 1934 | |
| 1935 | /* We don't need cmd_vector any more. */ |
| 1936 | vector_free(cmd_vector); |
| 1937 | |
| 1938 | /* No matched command */ |
| 1939 | if (vector_slot(matchvec, 0) == NULL) { |
| 1940 | vector_free(matchvec); |
| 1941 | |
| 1942 | /* In case of 'command \t' pattern. Do you need '?' command at |
| 1943 | the end of the line. */ |
| 1944 | if (vector_slot(vline, index) == '\0') |
| 1945 | *status = CMD_ERR_NOTHING_TODO; |
| 1946 | else |
| 1947 | *status = CMD_ERR_NO_MATCH; |
| 1948 | return NULL; |
| 1949 | } |
| 1950 | |
| 1951 | /* Only one matched */ |
| 1952 | if (vector_slot(matchvec, 1) == NULL) { |
| 1953 | match_str = (char **)matchvec->index; |
| 1954 | vector_only_wrapper_free(matchvec); |
| 1955 | *status = CMD_COMPLETE_FULL_MATCH; |
| 1956 | return match_str; |
| 1957 | } |
| 1958 | /* Make it sure last element is NULL. */ |
| 1959 | vector_set(matchvec, NULL); |
| 1960 | |
| 1961 | /* Check LCD of matched strings. */ |
| 1962 | if (vector_slot(vline, index) != NULL) { |
| 1963 | lcd = cmd_lcd((char **)matchvec->index); |
| 1964 | |
| 1965 | if (lcd) { |
| 1966 | int len = strlen(vector_slot(vline, index)); |
| 1967 | |
| 1968 | if (len < lcd) { |
| 1969 | char *lcdstr; |
| 1970 | |
| 1971 | lcdstr = _talloc_zero(tall_vty_cmd_ctx, lcd + 1, |
| 1972 | "complete-lcdstr"); |
| 1973 | memcpy(lcdstr, matchvec->index[0], lcd); |
| 1974 | lcdstr[lcd] = '\0'; |
| 1975 | |
| 1976 | /* match_str = (char **) &lcdstr; */ |
| 1977 | |
| 1978 | /* Free matchvec. */ |
| 1979 | for (i = 0; i < vector_active(matchvec); i++) { |
| 1980 | if (vector_slot(matchvec, i)) |
| 1981 | talloc_free(vector_slot(matchvec, i)); |
| 1982 | } |
| 1983 | vector_free(matchvec); |
| 1984 | |
| 1985 | /* Make new matchvec. */ |
| 1986 | matchvec = vector_init(INIT_MATCHVEC_SIZE); |
| 1987 | vector_set(matchvec, lcdstr); |
| 1988 | match_str = (char **)matchvec->index; |
| 1989 | vector_only_wrapper_free(matchvec); |
| 1990 | |
| 1991 | *status = CMD_COMPLETE_MATCH; |
| 1992 | return match_str; |
| 1993 | } |
| 1994 | } |
| 1995 | } |
| 1996 | |
| 1997 | match_str = (char **)matchvec->index; |
| 1998 | vector_only_wrapper_free(matchvec); |
| 1999 | *status = CMD_COMPLETE_LIST_MATCH; |
| 2000 | return match_str; |
| 2001 | } |
| 2002 | |
| 2003 | char **cmd_complete_command(vector vline, struct vty *vty, int *status) |
| 2004 | { |
| 2005 | char **ret; |
| 2006 | |
| 2007 | if (cmd_try_do_shortcut(vty->node, vector_slot(vline, 0))) { |
| 2008 | enum node_type onode; |
| 2009 | vector shifted_vline; |
| 2010 | unsigned int index; |
| 2011 | |
| 2012 | onode = vty->node; |
| 2013 | vty->node = ENABLE_NODE; |
| 2014 | /* We can try it on enable node, cos' the vty is authenticated */ |
| 2015 | |
| 2016 | shifted_vline = vector_init(vector_count(vline)); |
| 2017 | /* use memcpy? */ |
| 2018 | for (index = 1; index < vector_active(vline); index++) { |
| 2019 | vector_set_index(shifted_vline, index - 1, |
| 2020 | vector_lookup(vline, index)); |
| 2021 | } |
| 2022 | |
| 2023 | ret = cmd_complete_command_real(shifted_vline, vty, status); |
| 2024 | |
| 2025 | vector_free(shifted_vline); |
| 2026 | vty->node = onode; |
| 2027 | return ret; |
| 2028 | } |
| 2029 | |
| 2030 | return cmd_complete_command_real(vline, vty, status); |
| 2031 | } |
| 2032 | |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2033 | static struct vty_parent_node *vty_parent(struct vty *vty) |
| 2034 | { |
| 2035 | return llist_first_entry_or_null(&vty->parent_nodes, |
| 2036 | struct vty_parent_node, |
| 2037 | entry); |
| 2038 | } |
| 2039 | |
| 2040 | static bool vty_pop_parent(struct vty *vty) |
| 2041 | { |
| 2042 | struct vty_parent_node *parent = vty_parent(vty); |
| 2043 | if (!parent) |
| 2044 | return false; |
| 2045 | llist_del(&parent->entry); |
| 2046 | vty->node = parent->node; |
| 2047 | vty->priv = parent->priv; |
| 2048 | if (vty->indent) |
| 2049 | talloc_free(vty->indent); |
| 2050 | vty->indent = parent->indent; |
| 2051 | talloc_free(parent); |
| 2052 | return true; |
| 2053 | } |
| 2054 | |
| 2055 | static void vty_clear_parents(struct vty *vty) |
| 2056 | { |
| 2057 | while (vty_pop_parent(vty)); |
| 2058 | } |
| 2059 | |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2060 | /* return parent node */ |
Jacob Erlbeck | b3657e1 | 2013-09-10 14:04:54 +0200 | [diff] [blame] | 2061 | /* |
| 2062 | * This function MUST eventually converge on a node when called repeatedly, |
| 2063 | * there must not be any cycles. |
| 2064 | * All 'config' nodes shall converge on CONFIG_NODE. |
| 2065 | * All other 'enable' nodes shall converge on ENABLE_NODE. |
| 2066 | * All 'view' only nodes shall converge on VIEW_NODE. |
| 2067 | * All other nodes shall converge on themselves or it must be ensured, |
| 2068 | * that the user's rights are not extended anyhow by calling this function. |
| 2069 | * |
| 2070 | * Note that these requirements also apply to all functions that are used |
| 2071 | * as go_parent_cb. |
| 2072 | * Note also that this function relies on the is_config_child callback to |
| 2073 | * recognize non-config nodes if go_parent_cb is not set. |
| 2074 | */ |
Holger Hans Peter Freyther | a9e5252 | 2015-08-02 02:14:07 +0000 | [diff] [blame] | 2075 | int vty_go_parent(struct vty *vty) |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2076 | { |
Jacob Erlbeck | 7eed053 | 2013-09-06 16:51:59 +0200 | [diff] [blame] | 2077 | switch (vty->node) { |
Jacob Erlbeck | b3657e1 | 2013-09-10 14:04:54 +0200 | [diff] [blame] | 2078 | case AUTH_NODE: |
| 2079 | case VIEW_NODE: |
| 2080 | case ENABLE_NODE: |
Jacob Erlbeck | 7eed053 | 2013-09-06 16:51:59 +0200 | [diff] [blame] | 2081 | case CONFIG_NODE: |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2082 | vty_clear_parents(vty); |
Jacob Erlbeck | 7eed053 | 2013-09-06 16:51:59 +0200 | [diff] [blame] | 2083 | break; |
| 2084 | |
Jacob Erlbeck | b3657e1 | 2013-09-10 14:04:54 +0200 | [diff] [blame] | 2085 | case AUTH_ENABLE_NODE: |
| 2086 | vty->node = VIEW_NODE; |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2087 | vty_clear_parents(vty); |
Jacob Erlbeck | b3657e1 | 2013-09-10 14:04:54 +0200 | [diff] [blame] | 2088 | break; |
| 2089 | |
Jacob Erlbeck | 7eed053 | 2013-09-06 16:51:59 +0200 | [diff] [blame] | 2090 | case CFG_LOG_NODE: |
| 2091 | case VTY_NODE: |
| 2092 | vty->node = CONFIG_NODE; |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2093 | vty_clear_parents(vty); |
Jacob Erlbeck | 7eed053 | 2013-09-06 16:51:59 +0200 | [diff] [blame] | 2094 | break; |
| 2095 | |
| 2096 | default: |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2097 | if (host.app_info->go_parent_cb) { |
Jacob Erlbeck | 7eed053 | 2013-09-06 16:51:59 +0200 | [diff] [blame] | 2098 | host.app_info->go_parent_cb(vty); |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2099 | vty_pop_parent(vty); |
| 2100 | } |
| 2101 | else if (is_config_child(vty)) { |
Jacob Erlbeck | 7eed053 | 2013-09-06 16:51:59 +0200 | [diff] [blame] | 2102 | vty->node = CONFIG_NODE; |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2103 | vty_clear_parents(vty); |
| 2104 | } |
| 2105 | else { |
Jacob Erlbeck | b3657e1 | 2013-09-10 14:04:54 +0200 | [diff] [blame] | 2106 | vty->node = VIEW_NODE; |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2107 | vty_clear_parents(vty); |
| 2108 | } |
Jacob Erlbeck | 7eed053 | 2013-09-06 16:51:59 +0200 | [diff] [blame] | 2109 | break; |
| 2110 | } |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2111 | |
| 2112 | return vty->node; |
| 2113 | } |
| 2114 | |
| 2115 | /* Execute command by argument vline vector. */ |
| 2116 | static int |
| 2117 | cmd_execute_command_real(vector vline, struct vty *vty, |
| 2118 | struct cmd_element **cmd) |
| 2119 | { |
| 2120 | unsigned int i; |
| 2121 | unsigned int index; |
| 2122 | vector cmd_vector; |
| 2123 | struct cmd_element *cmd_element; |
| 2124 | struct cmd_element *matched_element; |
| 2125 | unsigned int matched_count, incomplete_count; |
| 2126 | int argc; |
| 2127 | const char *argv[CMD_ARGC_MAX]; |
| 2128 | enum match_type match = 0; |
| 2129 | int varflag; |
| 2130 | char *command; |
| 2131 | |
| 2132 | /* Make copy of command elements. */ |
| 2133 | cmd_vector = vector_copy(cmd_node_vector(cmdvec, vty->node)); |
| 2134 | |
| 2135 | for (index = 0; index < vector_active(vline); index++) |
| 2136 | if ((command = vector_slot(vline, index))) { |
| 2137 | int ret; |
| 2138 | |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 2139 | match = cmd_filter(command, cmd_vector, index, |
| 2140 | any_match); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2141 | |
| 2142 | if (match == vararg_match) |
| 2143 | break; |
| 2144 | |
| 2145 | ret = |
| 2146 | is_cmd_ambiguous(command, cmd_vector, index, match); |
| 2147 | |
| 2148 | if (ret == 1) { |
| 2149 | vector_free(cmd_vector); |
| 2150 | return CMD_ERR_AMBIGUOUS; |
| 2151 | } else if (ret == 2) { |
| 2152 | vector_free(cmd_vector); |
| 2153 | return CMD_ERR_NO_MATCH; |
| 2154 | } |
| 2155 | } |
| 2156 | |
| 2157 | /* Check matched count. */ |
| 2158 | matched_element = NULL; |
| 2159 | matched_count = 0; |
| 2160 | incomplete_count = 0; |
| 2161 | |
| 2162 | for (i = 0; i < vector_active(cmd_vector); i++) |
| 2163 | if ((cmd_element = vector_slot(cmd_vector, i))) { |
| 2164 | if (match == vararg_match |
| 2165 | || index >= cmd_element->cmdsize) { |
| 2166 | matched_element = cmd_element; |
| 2167 | #if 0 |
| 2168 | printf("DEBUG: %s\n", cmd_element->string); |
| 2169 | #endif |
| 2170 | matched_count++; |
| 2171 | } else { |
| 2172 | incomplete_count++; |
| 2173 | } |
| 2174 | } |
| 2175 | |
| 2176 | /* Finish of using cmd_vector. */ |
| 2177 | vector_free(cmd_vector); |
| 2178 | |
| 2179 | /* To execute command, matched_count must be 1. */ |
| 2180 | if (matched_count == 0) { |
| 2181 | if (incomplete_count) |
| 2182 | return CMD_ERR_INCOMPLETE; |
| 2183 | else |
| 2184 | return CMD_ERR_NO_MATCH; |
| 2185 | } |
| 2186 | |
| 2187 | if (matched_count > 1) |
| 2188 | return CMD_ERR_AMBIGUOUS; |
| 2189 | |
| 2190 | /* Argument treatment */ |
| 2191 | varflag = 0; |
| 2192 | argc = 0; |
| 2193 | |
| 2194 | for (i = 0; i < vector_active(vline); i++) { |
| 2195 | if (varflag) |
| 2196 | argv[argc++] = vector_slot(vline, i); |
| 2197 | else { |
| 2198 | vector descvec = |
| 2199 | vector_slot(matched_element->strvec, i); |
| 2200 | |
| 2201 | if (vector_active(descvec) == 1) { |
| 2202 | struct desc *desc = vector_slot(descvec, 0); |
| 2203 | |
| 2204 | if (CMD_VARARG(desc->cmd)) |
| 2205 | varflag = 1; |
| 2206 | |
| 2207 | if (varflag || CMD_VARIABLE(desc->cmd) |
| 2208 | || CMD_OPTION(desc->cmd)) |
| 2209 | argv[argc++] = vector_slot(vline, i); |
| 2210 | } else |
| 2211 | argv[argc++] = vector_slot(vline, i); |
| 2212 | } |
| 2213 | |
| 2214 | if (argc >= CMD_ARGC_MAX) |
| 2215 | return CMD_ERR_EXEED_ARGC_MAX; |
| 2216 | } |
| 2217 | |
| 2218 | /* For vtysh execution. */ |
| 2219 | if (cmd) |
| 2220 | *cmd = matched_element; |
| 2221 | |
| 2222 | if (matched_element->daemon) |
| 2223 | return CMD_SUCCESS_DAEMON; |
| 2224 | |
| 2225 | /* Execute matched command. */ |
| 2226 | return (*matched_element->func) (matched_element, vty, argc, argv); |
| 2227 | } |
| 2228 | |
| 2229 | int |
| 2230 | cmd_execute_command(vector vline, struct vty *vty, struct cmd_element **cmd, |
| 2231 | int vtysh) |
| 2232 | { |
Neels Hofmeyr | d64b6ae | 2017-09-07 04:52:05 +0200 | [diff] [blame] | 2233 | int ret; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2234 | enum node_type onode; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2235 | |
| 2236 | onode = vty->node; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2237 | |
| 2238 | if (cmd_try_do_shortcut(vty->node, vector_slot(vline, 0))) { |
| 2239 | vector shifted_vline; |
| 2240 | unsigned int index; |
| 2241 | |
| 2242 | vty->node = ENABLE_NODE; |
| 2243 | /* We can try it on enable node, cos' the vty is authenticated */ |
| 2244 | |
| 2245 | shifted_vline = vector_init(vector_count(vline)); |
| 2246 | /* use memcpy? */ |
| 2247 | for (index = 1; index < vector_active(vline); index++) { |
| 2248 | vector_set_index(shifted_vline, index - 1, |
| 2249 | vector_lookup(vline, index)); |
| 2250 | } |
| 2251 | |
| 2252 | ret = cmd_execute_command_real(shifted_vline, vty, cmd); |
| 2253 | |
| 2254 | vector_free(shifted_vline); |
| 2255 | vty->node = onode; |
| 2256 | return ret; |
| 2257 | } |
| 2258 | |
Neels Hofmeyr | d64b6ae | 2017-09-07 04:52:05 +0200 | [diff] [blame] | 2259 | return cmd_execute_command_real(vline, vty, cmd); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2260 | } |
| 2261 | |
| 2262 | /* Execute command by argument readline. */ |
| 2263 | int |
| 2264 | cmd_execute_command_strict(vector vline, struct vty *vty, |
| 2265 | struct cmd_element **cmd) |
| 2266 | { |
| 2267 | unsigned int i; |
| 2268 | unsigned int index; |
| 2269 | vector cmd_vector; |
| 2270 | struct cmd_element *cmd_element; |
| 2271 | struct cmd_element *matched_element; |
| 2272 | unsigned int matched_count, incomplete_count; |
| 2273 | int argc; |
| 2274 | const char *argv[CMD_ARGC_MAX]; |
| 2275 | int varflag; |
| 2276 | enum match_type match = 0; |
| 2277 | char *command; |
| 2278 | |
| 2279 | /* Make copy of command element */ |
| 2280 | cmd_vector = vector_copy(cmd_node_vector(cmdvec, vty->node)); |
| 2281 | |
| 2282 | for (index = 0; index < vector_active(vline); index++) |
| 2283 | if ((command = vector_slot(vline, index))) { |
| 2284 | int ret; |
| 2285 | |
Sylvain Munaut | 4d8eea4 | 2012-12-28 11:58:23 +0100 | [diff] [blame] | 2286 | match = cmd_filter(vector_slot(vline, index), |
| 2287 | cmd_vector, index, exact_match); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2288 | |
| 2289 | /* If command meets '.VARARG' then finish matching. */ |
| 2290 | if (match == vararg_match) |
| 2291 | break; |
| 2292 | |
| 2293 | ret = |
| 2294 | is_cmd_ambiguous(command, cmd_vector, index, match); |
| 2295 | if (ret == 1) { |
| 2296 | vector_free(cmd_vector); |
| 2297 | return CMD_ERR_AMBIGUOUS; |
| 2298 | } |
| 2299 | if (ret == 2) { |
| 2300 | vector_free(cmd_vector); |
| 2301 | return CMD_ERR_NO_MATCH; |
| 2302 | } |
| 2303 | } |
| 2304 | |
| 2305 | /* Check matched count. */ |
| 2306 | matched_element = NULL; |
| 2307 | matched_count = 0; |
| 2308 | incomplete_count = 0; |
| 2309 | for (i = 0; i < vector_active(cmd_vector); i++) |
| 2310 | if (vector_slot(cmd_vector, i) != NULL) { |
| 2311 | cmd_element = vector_slot(cmd_vector, i); |
| 2312 | |
| 2313 | if (match == vararg_match |
| 2314 | || index >= cmd_element->cmdsize) { |
| 2315 | matched_element = cmd_element; |
| 2316 | matched_count++; |
| 2317 | } else |
| 2318 | incomplete_count++; |
| 2319 | } |
| 2320 | |
| 2321 | /* Finish of using cmd_vector. */ |
| 2322 | vector_free(cmd_vector); |
| 2323 | |
| 2324 | /* To execute command, matched_count must be 1. */ |
| 2325 | if (matched_count == 0) { |
| 2326 | if (incomplete_count) |
| 2327 | return CMD_ERR_INCOMPLETE; |
| 2328 | else |
| 2329 | return CMD_ERR_NO_MATCH; |
| 2330 | } |
| 2331 | |
| 2332 | if (matched_count > 1) |
| 2333 | return CMD_ERR_AMBIGUOUS; |
| 2334 | |
| 2335 | /* Argument treatment */ |
| 2336 | varflag = 0; |
| 2337 | argc = 0; |
| 2338 | |
| 2339 | for (i = 0; i < vector_active(vline); i++) { |
| 2340 | if (varflag) |
| 2341 | argv[argc++] = vector_slot(vline, i); |
| 2342 | else { |
| 2343 | vector descvec = |
| 2344 | vector_slot(matched_element->strvec, i); |
| 2345 | |
| 2346 | if (vector_active(descvec) == 1) { |
| 2347 | struct desc *desc = vector_slot(descvec, 0); |
| 2348 | |
| 2349 | if (CMD_VARARG(desc->cmd)) |
| 2350 | varflag = 1; |
| 2351 | |
| 2352 | if (varflag || CMD_VARIABLE(desc->cmd) |
| 2353 | || CMD_OPTION(desc->cmd)) |
| 2354 | argv[argc++] = vector_slot(vline, i); |
| 2355 | } else |
| 2356 | argv[argc++] = vector_slot(vline, i); |
| 2357 | } |
| 2358 | |
| 2359 | if (argc >= CMD_ARGC_MAX) |
| 2360 | return CMD_ERR_EXEED_ARGC_MAX; |
| 2361 | } |
| 2362 | |
| 2363 | /* For vtysh execution. */ |
| 2364 | if (cmd) |
| 2365 | *cmd = matched_element; |
| 2366 | |
| 2367 | if (matched_element->daemon) |
| 2368 | return CMD_SUCCESS_DAEMON; |
| 2369 | |
| 2370 | /* Now execute matched command */ |
| 2371 | return (*matched_element->func) (matched_element, vty, argc, argv); |
| 2372 | } |
| 2373 | |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2374 | static inline size_t len(const char *str) |
| 2375 | { |
| 2376 | return str? strlen(str) : 0; |
| 2377 | } |
| 2378 | |
Neels Hofmeyr | 00b5ed3 | 2017-09-20 00:46:03 +0200 | [diff] [blame] | 2379 | /*! Make sure the common length of strings a and b is identical, then compare their lengths. I.e., if a |
| 2380 | * is longer than b, a must start with exactly b, and vice versa. |
| 2381 | * \returns EINVAL on mismatch, -1 for a < b, 0 for a == b, 1 for a > b. |
| 2382 | */ |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2383 | static int indent_cmp(const char *a, const char *b) |
| 2384 | { |
| 2385 | size_t al, bl; |
| 2386 | al = len(a); |
| 2387 | bl = len(b); |
| 2388 | if (al > bl) { |
| 2389 | if (bl && strncmp(a, b, bl) != 0) |
| 2390 | return EINVAL; |
| 2391 | return 1; |
| 2392 | } |
| 2393 | /* al <= bl */ |
| 2394 | if (al && strncmp(a, b, al) != 0) |
| 2395 | return EINVAL; |
| 2396 | return (al < bl)? -1 : 0; |
| 2397 | } |
| 2398 | |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2399 | /* Configration make from file. */ |
| 2400 | int config_from_file(struct vty *vty, FILE * fp) |
| 2401 | { |
| 2402 | int ret; |
| 2403 | vector vline; |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2404 | char *indent; |
| 2405 | int cmp; |
| 2406 | struct vty_parent_node this_node; |
| 2407 | struct vty_parent_node *parent; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2408 | |
| 2409 | while (fgets(vty->buf, VTY_BUFSIZ, fp)) { |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2410 | indent = NULL; |
| 2411 | vline = NULL; |
| 2412 | ret = cmd_make_strvec2(vty->buf, &indent, &vline); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2413 | |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2414 | if (ret != CMD_SUCCESS) |
| 2415 | goto return_invalid_indent; |
| 2416 | |
| 2417 | /* In case of comment or empty line */ |
| 2418 | if (vline == NULL) { |
| 2419 | if (indent) { |
| 2420 | talloc_free(indent); |
| 2421 | indent = NULL; |
| 2422 | } |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2423 | continue; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2424 | } |
| 2425 | |
Neels Hofmeyr | 4306363 | 2017-09-19 23:54:01 +0200 | [diff] [blame] | 2426 | /* We have a nonempty line. */ |
| 2427 | if (!vty->indent) { |
| 2428 | /* We have just entered a node and expecting the first child to come up; but we |
| 2429 | * may also skip right back to a parent or ancestor level. */ |
| 2430 | parent = vty_parent(vty); |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2431 | |
Neels Hofmeyr | 4306363 | 2017-09-19 23:54:01 +0200 | [diff] [blame] | 2432 | /* If there is no parent, record any indentation we encounter. */ |
| 2433 | cmp = parent ? indent_cmp(indent, parent->indent) : 1; |
| 2434 | |
| 2435 | if (cmp == EINVAL) |
| 2436 | goto return_invalid_indent; |
| 2437 | |
| 2438 | if (cmp <= 0) { |
| 2439 | /* We have gone right back to the parent level or higher, we are skipping |
| 2440 | * this child node level entirely. Pop the parent to go back to a node |
| 2441 | * that was actually there (to reinstate vty->indent) and re-use below |
| 2442 | * go-parent while-loop to find an accurate match of indent in the node |
| 2443 | * ancestry. */ |
| 2444 | vty_go_parent(vty); |
| 2445 | } else { |
| 2446 | /* The indent is deeper than the just entered parent, record the new |
| 2447 | * indentation characters. */ |
| 2448 | vty->indent = talloc_strdup(vty, indent); |
| 2449 | /* This *is* the new indentation. */ |
| 2450 | cmp = 0; |
| 2451 | } |
| 2452 | } else { |
| 2453 | /* There is a known indentation for this node level, validate and detect node |
| 2454 | * exits. */ |
| 2455 | cmp = indent_cmp(indent, vty->indent); |
| 2456 | if (cmp == EINVAL) |
| 2457 | goto return_invalid_indent; |
| 2458 | } |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2459 | |
| 2460 | /* Less indent: go up the parent nodes to find matching amount of less indent. When this |
| 2461 | * loop exits, we want to have found an exact match, i.e. cmp == 0. */ |
| 2462 | while (cmp < 0) { |
| 2463 | vty_go_parent(vty); |
| 2464 | cmp = indent_cmp(indent, vty->indent); |
| 2465 | if (cmp == EINVAL) |
| 2466 | goto return_invalid_indent; |
| 2467 | } |
| 2468 | |
| 2469 | /* More indent without having entered a child node level? Either the parent node's indent |
| 2470 | * wasn't hit exactly (e.g. there's a space more than the parent level had further above) |
| 2471 | * or the indentation increased even though the vty command didn't enter a child. */ |
| 2472 | if (cmp > 0) |
| 2473 | goto return_invalid_indent; |
| 2474 | |
| 2475 | /* Remember the current node before the command possibly changes it. */ |
| 2476 | this_node = (struct vty_parent_node){ |
| 2477 | .node = vty->node, |
| 2478 | .priv = vty->priv, |
| 2479 | .indent = vty->indent, |
| 2480 | }; |
| 2481 | |
| 2482 | parent = vty_parent(vty); |
| 2483 | ret = cmd_execute_command_strict(vline, vty, NULL); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2484 | cmd_free_strvec(vline); |
| 2485 | |
| 2486 | if (ret != CMD_SUCCESS && ret != CMD_WARNING |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2487 | && ret != CMD_ERR_NOTHING_TODO) { |
| 2488 | if (indent) { |
| 2489 | talloc_free(indent); |
| 2490 | indent = NULL; |
| 2491 | } |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2492 | return ret; |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2493 | } |
| 2494 | |
| 2495 | /* If we have stepped down into a child node, push a parent frame. |
| 2496 | * The causality is such: we don't expect every single node entry implementation to push |
| 2497 | * a parent node entry onto vty->parent_nodes. Instead we expect vty_go_parent() to *pop* |
| 2498 | * a parent node. Hence if the node changed without the parent node changing, we must |
| 2499 | * have stepped into a child node (and now expect a deeper indent). */ |
| 2500 | if (vty->node != this_node.node && parent == vty_parent(vty)) { |
| 2501 | /* Push the parent node. */ |
| 2502 | parent = talloc_zero(vty, struct vty_parent_node); |
| 2503 | *parent = this_node; |
| 2504 | llist_add(&parent->entry, &vty->parent_nodes); |
| 2505 | |
| 2506 | /* The current talloc'ed vty->indent string will now be owned by this parent |
| 2507 | * struct. Indicate that we don't know what deeper indent characters the user |
| 2508 | * will choose. */ |
| 2509 | vty->indent = NULL; |
| 2510 | } |
| 2511 | |
| 2512 | if (indent) { |
| 2513 | talloc_free(indent); |
| 2514 | indent = NULL; |
| 2515 | } |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2516 | } |
| 2517 | return CMD_SUCCESS; |
Neels Hofmeyr | 4a31ffa | 2017-09-07 03:08:06 +0200 | [diff] [blame] | 2518 | |
| 2519 | return_invalid_indent: |
| 2520 | if (vline) |
| 2521 | cmd_free_strvec(vline); |
| 2522 | if (indent) { |
| 2523 | talloc_free(indent); |
| 2524 | indent = NULL; |
| 2525 | } |
| 2526 | return CMD_ERR_INVALID_INDENT; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2527 | } |
| 2528 | |
| 2529 | /* Configration from terminal */ |
| 2530 | DEFUN(config_terminal, |
| 2531 | config_terminal_cmd, |
| 2532 | "configure terminal", |
| 2533 | "Configuration from vty interface\n" "Configuration terminal\n") |
| 2534 | { |
| 2535 | if (vty_config_lock(vty)) |
| 2536 | vty->node = CONFIG_NODE; |
| 2537 | else { |
| 2538 | vty_out(vty, "VTY configuration is locked by other VTY%s", |
| 2539 | VTY_NEWLINE); |
| 2540 | return CMD_WARNING; |
| 2541 | } |
| 2542 | return CMD_SUCCESS; |
| 2543 | } |
| 2544 | |
| 2545 | /* Enable command */ |
| 2546 | DEFUN(enable, config_enable_cmd, "enable", "Turn on privileged mode command\n") |
| 2547 | { |
| 2548 | /* If enable password is NULL, change to ENABLE_NODE */ |
| 2549 | if ((host.enable == NULL && host.enable_encrypt == NULL) || |
| 2550 | vty->type == VTY_SHELL_SERV) |
| 2551 | vty->node = ENABLE_NODE; |
| 2552 | else |
| 2553 | vty->node = AUTH_ENABLE_NODE; |
| 2554 | |
| 2555 | return CMD_SUCCESS; |
| 2556 | } |
| 2557 | |
| 2558 | /* Disable command */ |
| 2559 | DEFUN(disable, |
| 2560 | config_disable_cmd, "disable", "Turn off privileged mode command\n") |
| 2561 | { |
| 2562 | if (vty->node == ENABLE_NODE) |
| 2563 | vty->node = VIEW_NODE; |
| 2564 | return CMD_SUCCESS; |
| 2565 | } |
| 2566 | |
| 2567 | /* Down vty node level. */ |
| 2568 | gDEFUN(config_exit, |
| 2569 | config_exit_cmd, "exit", "Exit current mode and down to previous mode\n") |
| 2570 | { |
| 2571 | switch (vty->node) { |
Jacob Erlbeck | b3657e1 | 2013-09-10 14:04:54 +0200 | [diff] [blame] | 2572 | case AUTH_NODE: |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2573 | case VIEW_NODE: |
| 2574 | case ENABLE_NODE: |
Harald Welte | a99d45a | 2015-11-12 13:48:23 +0100 | [diff] [blame] | 2575 | vty->status = VTY_CLOSE; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2576 | break; |
| 2577 | case CONFIG_NODE: |
| 2578 | vty->node = ENABLE_NODE; |
| 2579 | vty_config_unlock(vty); |
| 2580 | break; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2581 | default: |
Jacob Erlbeck | 7eed053 | 2013-09-06 16:51:59 +0200 | [diff] [blame] | 2582 | if (vty->node > CONFIG_NODE) |
| 2583 | vty_go_parent (vty); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2584 | break; |
| 2585 | } |
| 2586 | return CMD_SUCCESS; |
| 2587 | } |
| 2588 | |
| 2589 | /* End of configuration. */ |
| 2590 | gDEFUN(config_end, |
| 2591 | config_end_cmd, "end", "End current mode and change to enable mode.") |
| 2592 | { |
Jacob Erlbeck | 7eed053 | 2013-09-06 16:51:59 +0200 | [diff] [blame] | 2593 | if (vty->node > ENABLE_NODE) { |
Jacob Erlbeck | 2349721 | 2013-09-10 09:07:31 +0200 | [diff] [blame] | 2594 | int last_node = CONFIG_NODE; |
Jacob Erlbeck | 7eed053 | 2013-09-06 16:51:59 +0200 | [diff] [blame] | 2595 | |
| 2596 | /* Repeatedly call go_parent until a top node is reached. */ |
| 2597 | while (vty->node > CONFIG_NODE) { |
| 2598 | if (vty->node == last_node) { |
| 2599 | /* Ensure termination, this shouldn't happen. */ |
| 2600 | break; |
| 2601 | } |
| 2602 | last_node = vty->node; |
| 2603 | vty_go_parent(vty); |
| 2604 | } |
| 2605 | |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2606 | vty_config_unlock(vty); |
Jacob Erlbeck | 7eed053 | 2013-09-06 16:51:59 +0200 | [diff] [blame] | 2607 | if (vty->node > ENABLE_NODE) |
| 2608 | vty->node = ENABLE_NODE; |
| 2609 | vty->index = NULL; |
| 2610 | vty->index_sub = NULL; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2611 | } |
| 2612 | return CMD_SUCCESS; |
| 2613 | } |
| 2614 | |
| 2615 | /* Show version. */ |
| 2616 | DEFUN(show_version, |
| 2617 | show_version_cmd, "show version", SHOW_STR "Displays program version\n") |
| 2618 | { |
Harald Welte | 237f624 | 2010-05-25 23:00:45 +0200 | [diff] [blame] | 2619 | vty_out(vty, "%s %s (%s).%s", host.app_info->name, |
| 2620 | host.app_info->version, |
| 2621 | host.app_info->name ? host.app_info->name : "", VTY_NEWLINE); |
| 2622 | vty_out(vty, "%s%s", host.app_info->copyright, VTY_NEWLINE); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2623 | |
| 2624 | return CMD_SUCCESS; |
| 2625 | } |
| 2626 | |
Holger Hans Peter Freyther | 8297c81 | 2011-11-18 23:14:24 +0100 | [diff] [blame] | 2627 | DEFUN(show_online_help, |
| 2628 | show_online_help_cmd, "show online-help", SHOW_STR "Online help\n") |
| 2629 | { |
| 2630 | vty_dump_nodes(vty); |
| 2631 | return CMD_SUCCESS; |
| 2632 | } |
| 2633 | |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2634 | /* Help display function for all node. */ |
| 2635 | gDEFUN(config_help, |
| 2636 | config_help_cmd, "help", "Description of the interactive help system\n") |
| 2637 | { |
| 2638 | vty_out(vty, |
| 2639 | "This VTY provides advanced help features. When you need help,%s\ |
| 2640 | anytime at the command line please press '?'.%s\ |
| 2641 | %s\ |
| 2642 | If nothing matches, the help list will be empty and you must backup%s\ |
| 2643 | until entering a '?' shows the available options.%s\ |
| 2644 | Two styles of help are provided:%s\ |
| 2645 | 1. Full help is available when you are ready to enter a%s\ |
| 2646 | command argument (e.g. 'show ?') and describes each possible%s\ |
| 2647 | argument.%s\ |
| 2648 | 2. Partial help is provided when an abbreviated argument is entered%s\ |
| 2649 | and you want to know what arguments match the input%s\ |
| 2650 | (e.g. 'show me?'.)%s%s", VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE, |
| 2651 | VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE); |
| 2652 | return CMD_SUCCESS; |
| 2653 | } |
| 2654 | |
| 2655 | /* Help display function for all node. */ |
| 2656 | gDEFUN(config_list, config_list_cmd, "list", "Print command list\n") |
| 2657 | { |
| 2658 | unsigned int i; |
| 2659 | struct cmd_node *cnode = vector_slot(cmdvec, vty->node); |
| 2660 | struct cmd_element *cmd; |
| 2661 | |
| 2662 | for (i = 0; i < vector_active(cnode->cmd_vector); i++) |
| 2663 | if ((cmd = vector_slot(cnode->cmd_vector, i)) != NULL |
| 2664 | && !(cmd->attr == CMD_ATTR_DEPRECATED |
| 2665 | || cmd->attr == CMD_ATTR_HIDDEN)) |
| 2666 | vty_out(vty, " %s%s", cmd->string, VTY_NEWLINE); |
| 2667 | return CMD_SUCCESS; |
| 2668 | } |
| 2669 | |
Holger Hans Peter Freyther | 738f133 | 2012-03-24 18:26:24 +0100 | [diff] [blame] | 2670 | static int write_config_file(const char *config_file, char **outpath) |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2671 | { |
| 2672 | unsigned int i; |
| 2673 | int fd; |
| 2674 | struct cmd_node *node; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2675 | char *config_file_tmp = NULL; |
| 2676 | char *config_file_sav = NULL; |
| 2677 | struct vty *file_vty; |
Holger Hans Peter Freyther | 738f133 | 2012-03-24 18:26:24 +0100 | [diff] [blame] | 2678 | struct stat st; |
| 2679 | |
| 2680 | *outpath = NULL; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2681 | |
| 2682 | /* Check and see if we are operating under vtysh configuration */ |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2683 | config_file_sav = |
| 2684 | _talloc_zero(tall_vty_cmd_ctx, |
| 2685 | strlen(config_file) + strlen(CONF_BACKUP_EXT) + 1, |
| 2686 | "config_file_sav"); |
| 2687 | strcpy(config_file_sav, config_file); |
| 2688 | strcat(config_file_sav, CONF_BACKUP_EXT); |
| 2689 | |
| 2690 | config_file_tmp = _talloc_zero(tall_vty_cmd_ctx, strlen(config_file) + 8, |
| 2691 | "config_file_tmp"); |
| 2692 | sprintf(config_file_tmp, "%s.XXXXXX", config_file); |
| 2693 | |
| 2694 | /* Open file to configuration write. */ |
| 2695 | fd = mkstemp(config_file_tmp); |
| 2696 | if (fd < 0) { |
Holger Hans Peter Freyther | 738f133 | 2012-03-24 18:26:24 +0100 | [diff] [blame] | 2697 | *outpath = talloc_strdup(tall_vty_cmd_ctx, config_file_tmp); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2698 | talloc_free(config_file_tmp); |
| 2699 | talloc_free(config_file_sav); |
Holger Hans Peter Freyther | 738f133 | 2012-03-24 18:26:24 +0100 | [diff] [blame] | 2700 | return -1; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2701 | } |
| 2702 | |
| 2703 | /* Make vty for configuration file. */ |
| 2704 | file_vty = vty_new(); |
| 2705 | file_vty->fd = fd; |
| 2706 | file_vty->type = VTY_FILE; |
| 2707 | |
| 2708 | /* Config file header print. */ |
| 2709 | vty_out(file_vty, "!\n! %s (%s) configuration saved from vty\n!", |
Harald Welte | 237f624 | 2010-05-25 23:00:45 +0200 | [diff] [blame] | 2710 | host.app_info->name, host.app_info->version); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2711 | //vty_time_print (file_vty, 1); |
| 2712 | vty_out(file_vty, "!\n"); |
| 2713 | |
| 2714 | for (i = 0; i < vector_active(cmdvec); i++) |
| 2715 | if ((node = vector_slot(cmdvec, i)) && node->func) { |
| 2716 | if ((*node->func) (file_vty)) |
| 2717 | vty_out(file_vty, "!\n"); |
| 2718 | } |
| 2719 | vty_close(file_vty); |
| 2720 | |
| 2721 | if (unlink(config_file_sav) != 0) |
| 2722 | if (errno != ENOENT) { |
Holger Hans Peter Freyther | 738f133 | 2012-03-24 18:26:24 +0100 | [diff] [blame] | 2723 | *outpath = talloc_strdup(tall_vty_cmd_ctx, config_file_sav); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2724 | talloc_free(config_file_sav); |
| 2725 | talloc_free(config_file_tmp); |
| 2726 | unlink(config_file_tmp); |
Holger Hans Peter Freyther | 738f133 | 2012-03-24 18:26:24 +0100 | [diff] [blame] | 2727 | return -2; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2728 | } |
Holger Hans Peter Freyther | 738f133 | 2012-03-24 18:26:24 +0100 | [diff] [blame] | 2729 | |
| 2730 | /* Only link the .sav file if the original file exists */ |
| 2731 | if (stat(config_file, &st) == 0) { |
| 2732 | if (link(config_file, config_file_sav) != 0) { |
| 2733 | *outpath = talloc_strdup(tall_vty_cmd_ctx, config_file_sav); |
| 2734 | talloc_free(config_file_sav); |
| 2735 | talloc_free(config_file_tmp); |
| 2736 | unlink(config_file_tmp); |
| 2737 | return -3; |
| 2738 | } |
| 2739 | sync(); |
| 2740 | if (unlink(config_file) != 0) { |
| 2741 | *outpath = talloc_strdup(tall_vty_cmd_ctx, config_file); |
| 2742 | talloc_free(config_file_sav); |
| 2743 | talloc_free(config_file_tmp); |
| 2744 | unlink(config_file_tmp); |
| 2745 | return -4; |
| 2746 | } |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2747 | } |
| 2748 | if (link(config_file_tmp, config_file) != 0) { |
Holger Hans Peter Freyther | 738f133 | 2012-03-24 18:26:24 +0100 | [diff] [blame] | 2749 | *outpath = talloc_strdup(tall_vty_cmd_ctx, config_file); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2750 | talloc_free(config_file_sav); |
| 2751 | talloc_free(config_file_tmp); |
| 2752 | unlink(config_file_tmp); |
Holger Hans Peter Freyther | 738f133 | 2012-03-24 18:26:24 +0100 | [diff] [blame] | 2753 | return -5; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2754 | } |
| 2755 | unlink(config_file_tmp); |
| 2756 | sync(); |
| 2757 | |
| 2758 | talloc_free(config_file_sav); |
| 2759 | talloc_free(config_file_tmp); |
| 2760 | |
| 2761 | if (chmod(config_file, 0666 & ~CONFIGFILE_MASK) != 0) { |
Holger Hans Peter Freyther | 738f133 | 2012-03-24 18:26:24 +0100 | [diff] [blame] | 2762 | *outpath = talloc_strdup(tall_vty_cmd_ctx, config_file); |
| 2763 | return -6; |
| 2764 | } |
| 2765 | |
| 2766 | return 0; |
| 2767 | } |
| 2768 | |
| 2769 | |
| 2770 | /* Write current configuration into file. */ |
| 2771 | DEFUN(config_write_file, |
| 2772 | config_write_file_cmd, |
| 2773 | "write file", |
| 2774 | "Write running configuration to memory, network, or terminal\n" |
| 2775 | "Write to configuration file\n") |
| 2776 | { |
| 2777 | char *failed_file; |
| 2778 | int rc; |
| 2779 | |
Holger Hans Peter Freyther | 9f0f978 | 2014-11-21 10:40:07 +0100 | [diff] [blame] | 2780 | if (host.app_info->config_is_consistent) { |
| 2781 | rc = host.app_info->config_is_consistent(vty); |
| 2782 | if (!rc) { |
| 2783 | vty_out(vty, "Configuration is not consistent%s", |
| 2784 | VTY_NEWLINE); |
| 2785 | return CMD_WARNING; |
| 2786 | } |
| 2787 | } |
| 2788 | |
Holger Hans Peter Freyther | 738f133 | 2012-03-24 18:26:24 +0100 | [diff] [blame] | 2789 | if (host.config == NULL) { |
| 2790 | vty_out(vty, "Can't save to configuration file, using vtysh.%s", |
| 2791 | VTY_NEWLINE); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2792 | return CMD_WARNING; |
| 2793 | } |
| 2794 | |
Holger Hans Peter Freyther | 738f133 | 2012-03-24 18:26:24 +0100 | [diff] [blame] | 2795 | rc = write_config_file(host.config, &failed_file); |
| 2796 | switch (rc) { |
| 2797 | case -1: |
| 2798 | vty_out(vty, "Can't open configuration file %s.%s", |
| 2799 | failed_file, VTY_NEWLINE); |
| 2800 | rc = CMD_WARNING; |
| 2801 | break; |
| 2802 | case -2: |
| 2803 | vty_out(vty, "Can't unlink backup configuration file %s.%s", |
| 2804 | failed_file, VTY_NEWLINE); |
| 2805 | rc = CMD_WARNING; |
| 2806 | break; |
| 2807 | case -3: |
| 2808 | vty_out(vty, "Can't backup old configuration file %s.%s", |
| 2809 | failed_file, VTY_NEWLINE); |
| 2810 | rc = CMD_WARNING; |
| 2811 | break; |
| 2812 | case -4: |
| 2813 | vty_out(vty, "Can't unlink configuration file %s.%s", |
| 2814 | failed_file, VTY_NEWLINE); |
| 2815 | rc = CMD_WARNING; |
| 2816 | break; |
| 2817 | case -5: |
| 2818 | vty_out(vty, "Can't save configuration file %s.%s", failed_file, |
| 2819 | VTY_NEWLINE); |
| 2820 | rc = CMD_WARNING; |
| 2821 | break; |
| 2822 | case -6: |
| 2823 | vty_out(vty, "Can't chmod configuration file %s: %s (%d).%s", |
| 2824 | failed_file, strerror(errno), errno, VTY_NEWLINE); |
| 2825 | rc = CMD_WARNING; |
| 2826 | break; |
| 2827 | default: |
| 2828 | vty_out(vty, "Configuration saved to %s%s", host.config, VTY_NEWLINE); |
| 2829 | rc = CMD_SUCCESS; |
| 2830 | break; |
| 2831 | } |
| 2832 | |
| 2833 | talloc_free(failed_file); |
| 2834 | return rc; |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 2835 | } |
| 2836 | |
| 2837 | ALIAS(config_write_file, |
| 2838 | config_write_cmd, |
| 2839 | "write", "Write running configuration to memory, network, or terminal\n") |
| 2840 | |
| 2841 | ALIAS(config_write_file, |
| 2842 | config_write_memory_cmd, |
| 2843 | "write memory", |
| 2844 | "Write running configuration to memory, network, or terminal\n" |
| 2845 | "Write configuration to the file (same as write file)\n") |
| 2846 | |
| 2847 | ALIAS(config_write_file, |
| 2848 | copy_runningconfig_startupconfig_cmd, |
| 2849 | "copy running-config startup-config", |
| 2850 | "Copy configuration\n" |
| 2851 | "Copy running config to... \n" |
| 2852 | "Copy running config to startup config (same as write file)\n") |
| 2853 | |
| 2854 | /* Write current configuration into the terminal. */ |
| 2855 | DEFUN(config_write_terminal, |
| 2856 | config_write_terminal_cmd, |
| 2857 | "write terminal", |
| 2858 | "Write running configuration to memory, network, or terminal\n" |
| 2859 | "Write to terminal\n") |
| 2860 | { |
| 2861 | unsigned int i; |
| 2862 | struct cmd_node *node; |
| 2863 | |
| 2864 | if (vty->type == VTY_SHELL_SERV) { |
| 2865 | for (i = 0; i < vector_active(cmdvec); i++) |
| 2866 | if ((node = vector_slot(cmdvec, i)) && node->func |
| 2867 | && node->vtysh) { |
| 2868 | if ((*node->func) (vty)) |
| 2869 | vty_out(vty, "!%s", VTY_NEWLINE); |
| 2870 | } |
| 2871 | } else { |
| 2872 | vty_out(vty, "%sCurrent configuration:%s", VTY_NEWLINE, |
| 2873 | VTY_NEWLINE); |
| 2874 | vty_out(vty, "!%s", VTY_NEWLINE); |
| 2875 | |
| 2876 | for (i = 0; i < vector_active(cmdvec); i++) |
| 2877 | if ((node = vector_slot(cmdvec, i)) && node->func) { |
| 2878 | if ((*node->func) (vty)) |
| 2879 | vty_out(vty, "!%s", VTY_NEWLINE); |
| 2880 | } |
| 2881 | vty_out(vty, "end%s", VTY_NEWLINE); |
| 2882 | } |
| 2883 | return CMD_SUCCESS; |
| 2884 | } |
| 2885 | |
| 2886 | /* Write current configuration into the terminal. */ |
| 2887 | ALIAS(config_write_terminal, |
| 2888 | show_running_config_cmd, |
| 2889 | "show running-config", SHOW_STR "running configuration\n") |
| 2890 | |
| 2891 | /* Write startup configuration into the terminal. */ |
| 2892 | DEFUN(show_startup_config, |
| 2893 | show_startup_config_cmd, |
| 2894 | "show startup-config", SHOW_STR "Contentes of startup configuration\n") |
| 2895 | { |
| 2896 | char buf[BUFSIZ]; |
| 2897 | FILE *confp; |
| 2898 | |
| 2899 | confp = fopen(host.config, "r"); |
| 2900 | if (confp == NULL) { |
| 2901 | vty_out(vty, "Can't open configuration file [%s]%s", |
| 2902 | host.config, VTY_NEWLINE); |
| 2903 | return CMD_WARNING; |
| 2904 | } |
| 2905 | |
| 2906 | while (fgets(buf, BUFSIZ, confp)) { |
| 2907 | char *cp = buf; |
| 2908 | |
| 2909 | while (*cp != '\r' && *cp != '\n' && *cp != '\0') |
| 2910 | cp++; |
| 2911 | *cp = '\0'; |
| 2912 | |
| 2913 | vty_out(vty, "%s%s", buf, VTY_NEWLINE); |
| 2914 | } |
| 2915 | |
| 2916 | fclose(confp); |
| 2917 | |
| 2918 | return CMD_SUCCESS; |
| 2919 | } |
| 2920 | |
| 2921 | /* Hostname configuration */ |
| 2922 | DEFUN(config_hostname, |
| 2923 | hostname_cmd, |
| 2924 | "hostname WORD", |
| 2925 | "Set system's network name\n" "This system's network name\n") |
| 2926 | { |
| 2927 | if (!isalpha((int)*argv[0])) { |
| 2928 | vty_out(vty, "Please specify string starting with alphabet%s", |
| 2929 | VTY_NEWLINE); |
| 2930 | return CMD_WARNING; |
| 2931 | } |
| 2932 | |
| 2933 | if (host.name) |
| 2934 | talloc_free(host.name); |
| 2935 | |
| 2936 | host.name = talloc_strdup(tall_vty_cmd_ctx, argv[0]); |
| 2937 | return CMD_SUCCESS; |
| 2938 | } |
| 2939 | |
| 2940 | DEFUN(config_no_hostname, |
| 2941 | no_hostname_cmd, |
| 2942 | "no hostname [HOSTNAME]", |
| 2943 | NO_STR "Reset system's network name\n" "Host name of this router\n") |
| 2944 | { |
| 2945 | if (host.name) |
| 2946 | talloc_free(host.name); |
| 2947 | host.name = NULL; |
| 2948 | return CMD_SUCCESS; |
| 2949 | } |
| 2950 | |
| 2951 | /* VTY interface password set. */ |
| 2952 | DEFUN(config_password, password_cmd, |
| 2953 | "password (8|) WORD", |
| 2954 | "Assign the terminal connection password\n" |
| 2955 | "Specifies a HIDDEN password will follow\n" |
| 2956 | "dummy string \n" "The HIDDEN line password string\n") |
| 2957 | { |
| 2958 | /* Argument check. */ |
| 2959 | if (argc == 0) { |
| 2960 | vty_out(vty, "Please specify password.%s", VTY_NEWLINE); |
| 2961 | return CMD_WARNING; |
| 2962 | } |
| 2963 | |
| 2964 | if (argc == 2) { |
| 2965 | if (*argv[0] == '8') { |
| 2966 | if (host.password) |
| 2967 | talloc_free(host.password); |
| 2968 | host.password = NULL; |
| 2969 | if (host.password_encrypt) |
| 2970 | talloc_free(host.password_encrypt); |
| 2971 | host.password_encrypt = talloc_strdup(tall_vty_cmd_ctx, argv[1]); |
| 2972 | return CMD_SUCCESS; |
| 2973 | } else { |
| 2974 | vty_out(vty, "Unknown encryption type.%s", VTY_NEWLINE); |
| 2975 | return CMD_WARNING; |
| 2976 | } |
| 2977 | } |
| 2978 | |
| 2979 | if (!isalnum((int)*argv[0])) { |
| 2980 | vty_out(vty, |
| 2981 | "Please specify string starting with alphanumeric%s", |
| 2982 | VTY_NEWLINE); |
| 2983 | return CMD_WARNING; |
| 2984 | } |
| 2985 | |
| 2986 | if (host.password) |
| 2987 | talloc_free(host.password); |
| 2988 | host.password = NULL; |
| 2989 | |
| 2990 | #ifdef VTY_CRYPT_PW |
| 2991 | if (host.encrypt) { |
| 2992 | if (host.password_encrypt) |
| 2993 | talloc_free(host.password_encrypt); |
| 2994 | host.password_encrypt = talloc_strdup(tall_vty_cmd_ctx, zencrypt(argv[0])); |
| 2995 | } else |
| 2996 | #endif |
| 2997 | host.password = talloc_strdup(tall_vty_cmd_ctx, argv[0]); |
| 2998 | |
| 2999 | return CMD_SUCCESS; |
| 3000 | } |
| 3001 | |
| 3002 | ALIAS(config_password, password_text_cmd, |
| 3003 | "password LINE", |
| 3004 | "Assign the terminal connection password\n" |
| 3005 | "The UNENCRYPTED (cleartext) line password\n") |
| 3006 | |
| 3007 | /* VTY enable password set. */ |
| 3008 | DEFUN(config_enable_password, enable_password_cmd, |
| 3009 | "enable password (8|) WORD", |
| 3010 | "Modify enable password parameters\n" |
| 3011 | "Assign the privileged level password\n" |
| 3012 | "Specifies a HIDDEN password will follow\n" |
| 3013 | "dummy string \n" "The HIDDEN 'enable' password string\n") |
| 3014 | { |
| 3015 | /* Argument check. */ |
| 3016 | if (argc == 0) { |
| 3017 | vty_out(vty, "Please specify password.%s", VTY_NEWLINE); |
| 3018 | return CMD_WARNING; |
| 3019 | } |
| 3020 | |
| 3021 | /* Crypt type is specified. */ |
| 3022 | if (argc == 2) { |
| 3023 | if (*argv[0] == '8') { |
| 3024 | if (host.enable) |
| 3025 | talloc_free(host.enable); |
| 3026 | host.enable = NULL; |
| 3027 | |
| 3028 | if (host.enable_encrypt) |
| 3029 | talloc_free(host.enable_encrypt); |
| 3030 | host.enable_encrypt = talloc_strdup(tall_vty_cmd_ctx, argv[1]); |
| 3031 | |
| 3032 | return CMD_SUCCESS; |
| 3033 | } else { |
| 3034 | vty_out(vty, "Unknown encryption type.%s", VTY_NEWLINE); |
| 3035 | return CMD_WARNING; |
| 3036 | } |
| 3037 | } |
| 3038 | |
| 3039 | if (!isalnum((int)*argv[0])) { |
| 3040 | vty_out(vty, |
| 3041 | "Please specify string starting with alphanumeric%s", |
| 3042 | VTY_NEWLINE); |
| 3043 | return CMD_WARNING; |
| 3044 | } |
| 3045 | |
| 3046 | if (host.enable) |
| 3047 | talloc_free(host.enable); |
| 3048 | host.enable = NULL; |
| 3049 | |
| 3050 | /* Plain password input. */ |
| 3051 | #ifdef VTY_CRYPT_PW |
| 3052 | if (host.encrypt) { |
| 3053 | if (host.enable_encrypt) |
| 3054 | talloc_free(host.enable_encrypt); |
| 3055 | host.enable_encrypt = talloc_strdup(tall_vty_cmd_ctx, zencrypt(argv[0])); |
| 3056 | } else |
| 3057 | #endif |
| 3058 | host.enable = talloc_strdup(tall_vty_cmd_ctx, argv[0]); |
| 3059 | |
| 3060 | return CMD_SUCCESS; |
| 3061 | } |
| 3062 | |
| 3063 | ALIAS(config_enable_password, |
| 3064 | enable_password_text_cmd, |
| 3065 | "enable password LINE", |
| 3066 | "Modify enable password parameters\n" |
| 3067 | "Assign the privileged level password\n" |
| 3068 | "The UNENCRYPTED (cleartext) 'enable' password\n") |
| 3069 | |
| 3070 | /* VTY enable password delete. */ |
| 3071 | DEFUN(no_config_enable_password, no_enable_password_cmd, |
| 3072 | "no enable password", |
| 3073 | NO_STR |
| 3074 | "Modify enable password parameters\n" |
| 3075 | "Assign the privileged level password\n") |
| 3076 | { |
| 3077 | if (host.enable) |
| 3078 | talloc_free(host.enable); |
| 3079 | host.enable = NULL; |
| 3080 | |
| 3081 | if (host.enable_encrypt) |
| 3082 | talloc_free(host.enable_encrypt); |
| 3083 | host.enable_encrypt = NULL; |
| 3084 | |
| 3085 | return CMD_SUCCESS; |
| 3086 | } |
| 3087 | |
| 3088 | #ifdef VTY_CRYPT_PW |
| 3089 | DEFUN(service_password_encrypt, |
| 3090 | service_password_encrypt_cmd, |
| 3091 | "service password-encryption", |
| 3092 | "Set up miscellaneous service\n" "Enable encrypted passwords\n") |
| 3093 | { |
| 3094 | if (host.encrypt) |
| 3095 | return CMD_SUCCESS; |
| 3096 | |
| 3097 | host.encrypt = 1; |
| 3098 | |
| 3099 | if (host.password) { |
| 3100 | if (host.password_encrypt) |
| 3101 | talloc_free(host.password_encrypt); |
| 3102 | host.password_encrypt = talloc_strdup(tall_vty_cmd_ctx, zencrypt(host.password)); |
| 3103 | } |
| 3104 | if (host.enable) { |
| 3105 | if (host.enable_encrypt) |
| 3106 | talloc_free(host.enable_encrypt); |
| 3107 | host.enable_encrypt = talloc_strdup(tall_vty_cmd_ctx, zencrypt(host.enable)); |
| 3108 | } |
| 3109 | |
| 3110 | return CMD_SUCCESS; |
| 3111 | } |
| 3112 | |
| 3113 | DEFUN(no_service_password_encrypt, |
| 3114 | no_service_password_encrypt_cmd, |
| 3115 | "no service password-encryption", |
| 3116 | NO_STR "Set up miscellaneous service\n" "Enable encrypted passwords\n") |
| 3117 | { |
| 3118 | if (!host.encrypt) |
| 3119 | return CMD_SUCCESS; |
| 3120 | |
| 3121 | host.encrypt = 0; |
| 3122 | |
| 3123 | if (host.password_encrypt) |
| 3124 | talloc_free(host.password_encrypt); |
| 3125 | host.password_encrypt = NULL; |
| 3126 | |
| 3127 | if (host.enable_encrypt) |
| 3128 | talloc_free(host.enable_encrypt); |
| 3129 | host.enable_encrypt = NULL; |
| 3130 | |
| 3131 | return CMD_SUCCESS; |
| 3132 | } |
| 3133 | #endif |
| 3134 | |
| 3135 | DEFUN(config_terminal_length, config_terminal_length_cmd, |
| 3136 | "terminal length <0-512>", |
| 3137 | "Set terminal line parameters\n" |
| 3138 | "Set number of lines on a screen\n" |
| 3139 | "Number of lines on screen (0 for no pausing)\n") |
| 3140 | { |
| 3141 | int lines; |
| 3142 | char *endptr = NULL; |
| 3143 | |
| 3144 | lines = strtol(argv[0], &endptr, 10); |
| 3145 | if (lines < 0 || lines > 512 || *endptr != '\0') { |
| 3146 | vty_out(vty, "length is malformed%s", VTY_NEWLINE); |
| 3147 | return CMD_WARNING; |
| 3148 | } |
| 3149 | vty->lines = lines; |
| 3150 | |
| 3151 | return CMD_SUCCESS; |
| 3152 | } |
| 3153 | |
| 3154 | DEFUN(config_terminal_no_length, config_terminal_no_length_cmd, |
| 3155 | "terminal no length", |
| 3156 | "Set terminal line parameters\n" |
| 3157 | NO_STR "Set number of lines on a screen\n") |
| 3158 | { |
| 3159 | vty->lines = -1; |
| 3160 | return CMD_SUCCESS; |
| 3161 | } |
| 3162 | |
| 3163 | DEFUN(service_terminal_length, service_terminal_length_cmd, |
| 3164 | "service terminal-length <0-512>", |
| 3165 | "Set up miscellaneous service\n" |
| 3166 | "System wide terminal length configuration\n" |
| 3167 | "Number of lines of VTY (0 means no line control)\n") |
| 3168 | { |
| 3169 | int lines; |
| 3170 | char *endptr = NULL; |
| 3171 | |
| 3172 | lines = strtol(argv[0], &endptr, 10); |
| 3173 | if (lines < 0 || lines > 512 || *endptr != '\0') { |
| 3174 | vty_out(vty, "length is malformed%s", VTY_NEWLINE); |
| 3175 | return CMD_WARNING; |
| 3176 | } |
| 3177 | host.lines = lines; |
| 3178 | |
| 3179 | return CMD_SUCCESS; |
| 3180 | } |
| 3181 | |
| 3182 | DEFUN(no_service_terminal_length, no_service_terminal_length_cmd, |
| 3183 | "no service terminal-length [<0-512>]", |
| 3184 | NO_STR |
| 3185 | "Set up miscellaneous service\n" |
| 3186 | "System wide terminal length configuration\n" |
| 3187 | "Number of lines of VTY (0 means no line control)\n") |
| 3188 | { |
| 3189 | host.lines = -1; |
| 3190 | return CMD_SUCCESS; |
| 3191 | } |
| 3192 | |
| 3193 | DEFUN_HIDDEN(do_echo, |
| 3194 | echo_cmd, |
| 3195 | "echo .MESSAGE", |
| 3196 | "Echo a message back to the vty\n" "The message to echo\n") |
| 3197 | { |
| 3198 | char *message; |
| 3199 | |
| 3200 | vty_out(vty, "%s%s", |
| 3201 | ((message = |
| 3202 | argv_concat(argv, argc, 0)) ? message : ""), VTY_NEWLINE); |
| 3203 | if (message) |
| 3204 | talloc_free(message); |
| 3205 | return CMD_SUCCESS; |
| 3206 | } |
| 3207 | |
| 3208 | #if 0 |
| 3209 | DEFUN(config_logmsg, |
| 3210 | config_logmsg_cmd, |
| 3211 | "logmsg " LOG_LEVELS " .MESSAGE", |
| 3212 | "Send a message to enabled logging destinations\n" |
| 3213 | LOG_LEVEL_DESC "The message to send\n") |
| 3214 | { |
| 3215 | int level; |
| 3216 | char *message; |
| 3217 | |
| 3218 | if ((level = level_match(argv[0])) == ZLOG_DISABLED) |
| 3219 | return CMD_ERR_NO_MATCH; |
| 3220 | |
| 3221 | zlog(NULL, level, |
| 3222 | ((message = argv_concat(argv, argc, 1)) ? message : "")); |
| 3223 | if (message) |
| 3224 | talloc_free(message); |
| 3225 | return CMD_SUCCESS; |
| 3226 | } |
| 3227 | |
| 3228 | DEFUN(show_logging, |
| 3229 | show_logging_cmd, |
| 3230 | "show logging", SHOW_STR "Show current logging configuration\n") |
| 3231 | { |
| 3232 | struct zlog *zl = zlog_default; |
| 3233 | |
| 3234 | vty_out(vty, "Syslog logging: "); |
| 3235 | if (zl->maxlvl[ZLOG_DEST_SYSLOG] == ZLOG_DISABLED) |
| 3236 | vty_out(vty, "disabled"); |
| 3237 | else |
| 3238 | vty_out(vty, "level %s, facility %s, ident %s", |
| 3239 | zlog_priority[zl->maxlvl[ZLOG_DEST_SYSLOG]], |
| 3240 | facility_name(zl->facility), zl->ident); |
| 3241 | vty_out(vty, "%s", VTY_NEWLINE); |
| 3242 | |
| 3243 | vty_out(vty, "Stdout logging: "); |
| 3244 | if (zl->maxlvl[ZLOG_DEST_STDOUT] == ZLOG_DISABLED) |
| 3245 | vty_out(vty, "disabled"); |
| 3246 | else |
| 3247 | vty_out(vty, "level %s", |
| 3248 | zlog_priority[zl->maxlvl[ZLOG_DEST_STDOUT]]); |
| 3249 | vty_out(vty, "%s", VTY_NEWLINE); |
| 3250 | |
| 3251 | vty_out(vty, "Monitor logging: "); |
| 3252 | if (zl->maxlvl[ZLOG_DEST_MONITOR] == ZLOG_DISABLED) |
| 3253 | vty_out(vty, "disabled"); |
| 3254 | else |
| 3255 | vty_out(vty, "level %s", |
| 3256 | zlog_priority[zl->maxlvl[ZLOG_DEST_MONITOR]]); |
| 3257 | vty_out(vty, "%s", VTY_NEWLINE); |
| 3258 | |
| 3259 | vty_out(vty, "File logging: "); |
| 3260 | if ((zl->maxlvl[ZLOG_DEST_FILE] == ZLOG_DISABLED) || !zl->fp) |
| 3261 | vty_out(vty, "disabled"); |
| 3262 | else |
| 3263 | vty_out(vty, "level %s, filename %s", |
| 3264 | zlog_priority[zl->maxlvl[ZLOG_DEST_FILE]], |
| 3265 | zl->filename); |
| 3266 | vty_out(vty, "%s", VTY_NEWLINE); |
| 3267 | |
| 3268 | vty_out(vty, "Protocol name: %s%s", |
| 3269 | zlog_proto_names[zl->protocol], VTY_NEWLINE); |
| 3270 | vty_out(vty, "Record priority: %s%s", |
| 3271 | (zl->record_priority ? "enabled" : "disabled"), VTY_NEWLINE); |
| 3272 | |
| 3273 | return CMD_SUCCESS; |
| 3274 | } |
| 3275 | |
| 3276 | DEFUN(config_log_stdout, |
| 3277 | config_log_stdout_cmd, |
| 3278 | "log stdout", "Logging control\n" "Set stdout logging level\n") |
| 3279 | { |
| 3280 | zlog_set_level(NULL, ZLOG_DEST_STDOUT, zlog_default->default_lvl); |
| 3281 | return CMD_SUCCESS; |
| 3282 | } |
| 3283 | |
| 3284 | DEFUN(config_log_stdout_level, |
| 3285 | config_log_stdout_level_cmd, |
| 3286 | "log stdout " LOG_LEVELS, |
| 3287 | "Logging control\n" "Set stdout logging level\n" LOG_LEVEL_DESC) |
| 3288 | { |
| 3289 | int level; |
| 3290 | |
| 3291 | if ((level = level_match(argv[0])) == ZLOG_DISABLED) |
| 3292 | return CMD_ERR_NO_MATCH; |
| 3293 | zlog_set_level(NULL, ZLOG_DEST_STDOUT, level); |
| 3294 | return CMD_SUCCESS; |
| 3295 | } |
| 3296 | |
| 3297 | DEFUN(no_config_log_stdout, |
| 3298 | no_config_log_stdout_cmd, |
| 3299 | "no log stdout [LEVEL]", |
| 3300 | NO_STR "Logging control\n" "Cancel logging to stdout\n" "Logging level\n") |
| 3301 | { |
| 3302 | zlog_set_level(NULL, ZLOG_DEST_STDOUT, ZLOG_DISABLED); |
| 3303 | return CMD_SUCCESS; |
| 3304 | } |
| 3305 | |
| 3306 | DEFUN(config_log_monitor, |
| 3307 | config_log_monitor_cmd, |
| 3308 | "log monitor", |
| 3309 | "Logging control\n" "Set terminal line (monitor) logging level\n") |
| 3310 | { |
| 3311 | zlog_set_level(NULL, ZLOG_DEST_MONITOR, zlog_default->default_lvl); |
| 3312 | return CMD_SUCCESS; |
| 3313 | } |
| 3314 | |
| 3315 | DEFUN(config_log_monitor_level, |
| 3316 | config_log_monitor_level_cmd, |
| 3317 | "log monitor " LOG_LEVELS, |
| 3318 | "Logging control\n" |
| 3319 | "Set terminal line (monitor) logging level\n" LOG_LEVEL_DESC) |
| 3320 | { |
| 3321 | int level; |
| 3322 | |
| 3323 | if ((level = level_match(argv[0])) == ZLOG_DISABLED) |
| 3324 | return CMD_ERR_NO_MATCH; |
| 3325 | zlog_set_level(NULL, ZLOG_DEST_MONITOR, level); |
| 3326 | return CMD_SUCCESS; |
| 3327 | } |
| 3328 | |
| 3329 | DEFUN(no_config_log_monitor, |
| 3330 | no_config_log_monitor_cmd, |
| 3331 | "no log monitor [LEVEL]", |
| 3332 | NO_STR |
| 3333 | "Logging control\n" |
| 3334 | "Disable terminal line (monitor) logging\n" "Logging level\n") |
| 3335 | { |
| 3336 | zlog_set_level(NULL, ZLOG_DEST_MONITOR, ZLOG_DISABLED); |
| 3337 | return CMD_SUCCESS; |
| 3338 | } |
| 3339 | |
| 3340 | static int set_log_file(struct vty *vty, const char *fname, int loglevel) |
| 3341 | { |
| 3342 | int ret; |
| 3343 | char *p = NULL; |
| 3344 | const char *fullpath; |
| 3345 | |
| 3346 | /* Path detection. */ |
| 3347 | if (!IS_DIRECTORY_SEP(*fname)) { |
| 3348 | char cwd[MAXPATHLEN + 1]; |
| 3349 | cwd[MAXPATHLEN] = '\0'; |
| 3350 | |
| 3351 | if (getcwd(cwd, MAXPATHLEN) == NULL) { |
| 3352 | zlog_err("config_log_file: Unable to alloc mem!"); |
| 3353 | return CMD_WARNING; |
| 3354 | } |
| 3355 | |
| 3356 | if ((p = _talloc_zero(tall_vcmd_ctx, |
| 3357 | strlen(cwd) + strlen(fname) + 2), |
| 3358 | "set_log_file") |
| 3359 | == NULL) { |
| 3360 | zlog_err("config_log_file: Unable to alloc mem!"); |
| 3361 | return CMD_WARNING; |
| 3362 | } |
| 3363 | sprintf(p, "%s/%s", cwd, fname); |
| 3364 | fullpath = p; |
| 3365 | } else |
| 3366 | fullpath = fname; |
| 3367 | |
| 3368 | ret = zlog_set_file(NULL, fullpath, loglevel); |
| 3369 | |
| 3370 | if (p) |
| 3371 | talloc_free(p); |
| 3372 | |
| 3373 | if (!ret) { |
| 3374 | vty_out(vty, "can't open logfile %s\n", fname); |
| 3375 | return CMD_WARNING; |
| 3376 | } |
| 3377 | |
| 3378 | if (host.logfile) |
| 3379 | talloc_free(host.logfile); |
| 3380 | |
| 3381 | host.logfile = talloc_strdup(tall_vty_cmd_ctx, fname); |
| 3382 | |
| 3383 | return CMD_SUCCESS; |
| 3384 | } |
| 3385 | |
| 3386 | DEFUN(config_log_file, |
| 3387 | config_log_file_cmd, |
| 3388 | "log file FILENAME", |
| 3389 | "Logging control\n" "Logging to file\n" "Logging filename\n") |
| 3390 | { |
| 3391 | return set_log_file(vty, argv[0], zlog_default->default_lvl); |
| 3392 | } |
| 3393 | |
| 3394 | DEFUN(config_log_file_level, |
| 3395 | config_log_file_level_cmd, |
| 3396 | "log file FILENAME " LOG_LEVELS, |
| 3397 | "Logging control\n" |
| 3398 | "Logging to file\n" "Logging filename\n" LOG_LEVEL_DESC) |
| 3399 | { |
| 3400 | int level; |
| 3401 | |
| 3402 | if ((level = level_match(argv[1])) == ZLOG_DISABLED) |
| 3403 | return CMD_ERR_NO_MATCH; |
| 3404 | return set_log_file(vty, argv[0], level); |
| 3405 | } |
| 3406 | |
| 3407 | DEFUN(no_config_log_file, |
| 3408 | no_config_log_file_cmd, |
| 3409 | "no log file [FILENAME]", |
| 3410 | NO_STR |
| 3411 | "Logging control\n" "Cancel logging to file\n" "Logging file name\n") |
| 3412 | { |
| 3413 | zlog_reset_file(NULL); |
| 3414 | |
| 3415 | if (host.logfile) |
| 3416 | talloc_free(host.logfile); |
| 3417 | |
| 3418 | host.logfile = NULL; |
| 3419 | |
| 3420 | return CMD_SUCCESS; |
| 3421 | } |
| 3422 | |
| 3423 | ALIAS(no_config_log_file, |
| 3424 | no_config_log_file_level_cmd, |
| 3425 | "no log file FILENAME LEVEL", |
| 3426 | NO_STR |
| 3427 | "Logging control\n" |
| 3428 | "Cancel logging to file\n" "Logging file name\n" "Logging level\n") |
| 3429 | |
| 3430 | DEFUN(config_log_syslog, |
| 3431 | config_log_syslog_cmd, |
| 3432 | "log syslog", "Logging control\n" "Set syslog logging level\n") |
| 3433 | { |
| 3434 | zlog_set_level(NULL, ZLOG_DEST_SYSLOG, zlog_default->default_lvl); |
| 3435 | return CMD_SUCCESS; |
| 3436 | } |
| 3437 | |
| 3438 | DEFUN(config_log_syslog_level, |
| 3439 | config_log_syslog_level_cmd, |
| 3440 | "log syslog " LOG_LEVELS, |
| 3441 | "Logging control\n" "Set syslog logging level\n" LOG_LEVEL_DESC) |
| 3442 | { |
| 3443 | int level; |
| 3444 | |
| 3445 | if ((level = level_match(argv[0])) == ZLOG_DISABLED) |
| 3446 | return CMD_ERR_NO_MATCH; |
| 3447 | zlog_set_level(NULL, ZLOG_DEST_SYSLOG, level); |
| 3448 | return CMD_SUCCESS; |
| 3449 | } |
| 3450 | |
| 3451 | DEFUN_DEPRECATED(config_log_syslog_facility, |
| 3452 | config_log_syslog_facility_cmd, |
| 3453 | "log syslog facility " LOG_FACILITIES, |
| 3454 | "Logging control\n" |
| 3455 | "Logging goes to syslog\n" |
| 3456 | "(Deprecated) Facility parameter for syslog messages\n" |
| 3457 | LOG_FACILITY_DESC) |
| 3458 | { |
| 3459 | int facility; |
| 3460 | |
| 3461 | if ((facility = facility_match(argv[0])) < 0) |
| 3462 | return CMD_ERR_NO_MATCH; |
| 3463 | |
| 3464 | zlog_set_level(NULL, ZLOG_DEST_SYSLOG, zlog_default->default_lvl); |
| 3465 | zlog_default->facility = facility; |
| 3466 | return CMD_SUCCESS; |
| 3467 | } |
| 3468 | |
| 3469 | DEFUN(no_config_log_syslog, |
| 3470 | no_config_log_syslog_cmd, |
| 3471 | "no log syslog [LEVEL]", |
| 3472 | NO_STR "Logging control\n" "Cancel logging to syslog\n" "Logging level\n") |
| 3473 | { |
| 3474 | zlog_set_level(NULL, ZLOG_DEST_SYSLOG, ZLOG_DISABLED); |
| 3475 | return CMD_SUCCESS; |
| 3476 | } |
| 3477 | |
| 3478 | ALIAS(no_config_log_syslog, |
| 3479 | no_config_log_syslog_facility_cmd, |
| 3480 | "no log syslog facility " LOG_FACILITIES, |
| 3481 | NO_STR |
| 3482 | "Logging control\n" |
| 3483 | "Logging goes to syslog\n" |
| 3484 | "Facility parameter for syslog messages\n" LOG_FACILITY_DESC) |
| 3485 | |
| 3486 | DEFUN(config_log_facility, |
| 3487 | config_log_facility_cmd, |
| 3488 | "log facility " LOG_FACILITIES, |
| 3489 | "Logging control\n" |
| 3490 | "Facility parameter for syslog messages\n" LOG_FACILITY_DESC) |
| 3491 | { |
| 3492 | int facility; |
| 3493 | |
| 3494 | if ((facility = facility_match(argv[0])) < 0) |
| 3495 | return CMD_ERR_NO_MATCH; |
| 3496 | zlog_default->facility = facility; |
| 3497 | return CMD_SUCCESS; |
| 3498 | } |
| 3499 | |
| 3500 | DEFUN(no_config_log_facility, |
| 3501 | no_config_log_facility_cmd, |
| 3502 | "no log facility [FACILITY]", |
| 3503 | NO_STR |
| 3504 | "Logging control\n" |
| 3505 | "Reset syslog facility to default (daemon)\n" "Syslog facility\n") |
| 3506 | { |
| 3507 | zlog_default->facility = LOG_DAEMON; |
| 3508 | return CMD_SUCCESS; |
| 3509 | } |
| 3510 | |
| 3511 | DEFUN_DEPRECATED(config_log_trap, |
| 3512 | config_log_trap_cmd, |
| 3513 | "log trap " LOG_LEVELS, |
| 3514 | "Logging control\n" |
| 3515 | "(Deprecated) Set logging level and default for all destinations\n" |
| 3516 | LOG_LEVEL_DESC) |
| 3517 | { |
| 3518 | int new_level; |
| 3519 | int i; |
| 3520 | |
| 3521 | if ((new_level = level_match(argv[0])) == ZLOG_DISABLED) |
| 3522 | return CMD_ERR_NO_MATCH; |
| 3523 | |
| 3524 | zlog_default->default_lvl = new_level; |
| 3525 | for (i = 0; i < ZLOG_NUM_DESTS; i++) |
| 3526 | if (zlog_default->maxlvl[i] != ZLOG_DISABLED) |
| 3527 | zlog_default->maxlvl[i] = new_level; |
| 3528 | return CMD_SUCCESS; |
| 3529 | } |
| 3530 | |
| 3531 | DEFUN_DEPRECATED(no_config_log_trap, |
| 3532 | no_config_log_trap_cmd, |
| 3533 | "no log trap [LEVEL]", |
| 3534 | NO_STR |
| 3535 | "Logging control\n" |
| 3536 | "Permit all logging information\n" "Logging level\n") |
| 3537 | { |
| 3538 | zlog_default->default_lvl = LOG_DEBUG; |
| 3539 | return CMD_SUCCESS; |
| 3540 | } |
| 3541 | |
| 3542 | DEFUN(config_log_record_priority, |
| 3543 | config_log_record_priority_cmd, |
| 3544 | "log record-priority", |
| 3545 | "Logging control\n" |
| 3546 | "Log the priority of the message within the message\n") |
| 3547 | { |
| 3548 | zlog_default->record_priority = 1; |
| 3549 | return CMD_SUCCESS; |
| 3550 | } |
| 3551 | |
| 3552 | DEFUN(no_config_log_record_priority, |
| 3553 | no_config_log_record_priority_cmd, |
| 3554 | "no log record-priority", |
| 3555 | NO_STR |
| 3556 | "Logging control\n" |
| 3557 | "Do not log the priority of the message within the message\n") |
| 3558 | { |
| 3559 | zlog_default->record_priority = 0; |
| 3560 | return CMD_SUCCESS; |
| 3561 | } |
| 3562 | #endif |
| 3563 | |
| 3564 | DEFUN(banner_motd_file, |
| 3565 | banner_motd_file_cmd, |
| 3566 | "banner motd file [FILE]", |
| 3567 | "Set banner\n" "Banner for motd\n" "Banner from a file\n" "Filename\n") |
| 3568 | { |
| 3569 | if (host.motdfile) |
| 3570 | talloc_free(host.motdfile); |
| 3571 | host.motdfile = talloc_strdup(tall_vty_cmd_ctx, argv[0]); |
| 3572 | |
| 3573 | return CMD_SUCCESS; |
| 3574 | } |
| 3575 | |
| 3576 | DEFUN(banner_motd_default, |
| 3577 | banner_motd_default_cmd, |
| 3578 | "banner motd default", |
| 3579 | "Set banner string\n" "Strings for motd\n" "Default string\n") |
| 3580 | { |
| 3581 | host.motd = default_motd; |
| 3582 | return CMD_SUCCESS; |
| 3583 | } |
| 3584 | |
| 3585 | DEFUN(no_banner_motd, |
| 3586 | no_banner_motd_cmd, |
| 3587 | "no banner motd", NO_STR "Set banner string\n" "Strings for motd\n") |
| 3588 | { |
| 3589 | host.motd = NULL; |
| 3590 | if (host.motdfile) |
| 3591 | talloc_free(host.motdfile); |
| 3592 | host.motdfile = NULL; |
| 3593 | return CMD_SUCCESS; |
| 3594 | } |
| 3595 | |
| 3596 | /* Set config filename. Called from vty.c */ |
| 3597 | void host_config_set(const char *filename) |
| 3598 | { |
| 3599 | host.config = talloc_strdup(tall_vty_cmd_ctx, filename); |
| 3600 | } |
| 3601 | |
Holger Hans Peter Freyther | a9e5252 | 2015-08-02 02:14:07 +0000 | [diff] [blame] | 3602 | void install_default(int node) |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 3603 | { |
| 3604 | install_element(node, &config_help_cmd); |
| 3605 | install_element(node, &config_list_cmd); |
| 3606 | |
| 3607 | install_element(node, &config_write_terminal_cmd); |
| 3608 | install_element(node, &config_write_file_cmd); |
| 3609 | install_element(node, &config_write_memory_cmd); |
| 3610 | install_element(node, &config_write_cmd); |
| 3611 | install_element(node, &show_running_config_cmd); |
| 3612 | } |
| 3613 | |
Holger Hans Peter Freyther | a9e5252 | 2015-08-02 02:14:07 +0000 | [diff] [blame] | 3614 | void vty_install_default(int node) |
Jacob Erlbeck | 0c987bd | 2013-09-06 16:52:00 +0200 | [diff] [blame] | 3615 | { |
| 3616 | install_default(node); |
| 3617 | |
| 3618 | install_element(node, &config_exit_cmd); |
| 3619 | |
| 3620 | if (node >= CONFIG_NODE) { |
| 3621 | /* It's not a top node. */ |
| 3622 | install_element(node, &config_end_cmd); |
| 3623 | } |
| 3624 | } |
| 3625 | |
Holger Hans Peter Freyther | 738f133 | 2012-03-24 18:26:24 +0100 | [diff] [blame] | 3626 | /** |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 3627 | * Write the current running config to a given file |
Holger Hans Peter Freyther | 738f133 | 2012-03-24 18:26:24 +0100 | [diff] [blame] | 3628 | * \param[in] vty the vty of the code |
| 3629 | * \param[in] filename where to store the file |
| 3630 | * \return 0 in case of success. |
| 3631 | * |
| 3632 | * If the filename already exists create a filename.sav |
| 3633 | * version with the current code. |
| 3634 | * |
| 3635 | */ |
| 3636 | int osmo_vty_write_config_file(const char *filename) |
| 3637 | { |
| 3638 | char *failed_file; |
| 3639 | int rc; |
| 3640 | |
| 3641 | rc = write_config_file(filename, &failed_file); |
| 3642 | talloc_free(failed_file); |
| 3643 | return rc; |
| 3644 | } |
| 3645 | |
| 3646 | /** |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 3647 | * Save the current state to the config file |
Holger Hans Peter Freyther | 738f133 | 2012-03-24 18:26:24 +0100 | [diff] [blame] | 3648 | * \return 0 in case of success. |
| 3649 | * |
| 3650 | * If the filename already exists create a filename.sav |
| 3651 | * version with the current code. |
| 3652 | * |
| 3653 | */ |
| 3654 | int osmo_vty_save_config_file(void) |
| 3655 | { |
| 3656 | char *failed_file; |
| 3657 | int rc; |
| 3658 | |
| 3659 | if (host.config == NULL) |
| 3660 | return -7; |
| 3661 | |
| 3662 | rc = write_config_file(host.config, &failed_file); |
| 3663 | talloc_free(failed_file); |
| 3664 | return rc; |
| 3665 | } |
| 3666 | |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 3667 | /* Initialize command interface. Install basic nodes and commands. */ |
| 3668 | void cmd_init(int terminal) |
| 3669 | { |
| 3670 | /* Allocate initial top vector of commands. */ |
| 3671 | cmdvec = vector_init(VECTOR_MIN_SIZE); |
| 3672 | |
| 3673 | /* Default host value settings. */ |
| 3674 | host.name = NULL; |
| 3675 | host.password = NULL; |
| 3676 | host.enable = NULL; |
| 3677 | host.logfile = NULL; |
| 3678 | host.config = NULL; |
| 3679 | host.lines = -1; |
| 3680 | host.motd = default_motd; |
| 3681 | host.motdfile = NULL; |
| 3682 | |
| 3683 | /* Install top nodes. */ |
| 3684 | install_node(&view_node, NULL); |
| 3685 | install_node(&enable_node, NULL); |
| 3686 | install_node(&auth_node, NULL); |
| 3687 | install_node(&auth_enable_node, NULL); |
| 3688 | install_node(&config_node, config_write_host); |
| 3689 | |
| 3690 | /* Each node's basic commands. */ |
| 3691 | install_element(VIEW_NODE, &show_version_cmd); |
Holger Hans Peter Freyther | 8297c81 | 2011-11-18 23:14:24 +0100 | [diff] [blame] | 3692 | install_element(VIEW_NODE, &show_online_help_cmd); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 3693 | if (terminal) { |
| 3694 | install_element(VIEW_NODE, &config_list_cmd); |
| 3695 | install_element(VIEW_NODE, &config_exit_cmd); |
| 3696 | install_element(VIEW_NODE, &config_help_cmd); |
| 3697 | install_element(VIEW_NODE, &config_enable_cmd); |
| 3698 | install_element(VIEW_NODE, &config_terminal_length_cmd); |
| 3699 | install_element(VIEW_NODE, &config_terminal_no_length_cmd); |
| 3700 | install_element(VIEW_NODE, &echo_cmd); |
| 3701 | } |
| 3702 | |
| 3703 | if (terminal) { |
Jacob Erlbeck | 0c987bd | 2013-09-06 16:52:00 +0200 | [diff] [blame] | 3704 | vty_install_default(ENABLE_NODE); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 3705 | install_element(ENABLE_NODE, &config_disable_cmd); |
| 3706 | install_element(ENABLE_NODE, &config_terminal_cmd); |
| 3707 | install_element (ENABLE_NODE, ©_runningconfig_startupconfig_cmd); |
| 3708 | } |
| 3709 | install_element (ENABLE_NODE, &show_startup_config_cmd); |
| 3710 | install_element(ENABLE_NODE, &show_version_cmd); |
Holger Hans Peter Freyther | 8297c81 | 2011-11-18 23:14:24 +0100 | [diff] [blame] | 3711 | install_element(ENABLE_NODE, &show_online_help_cmd); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 3712 | |
| 3713 | if (terminal) { |
| 3714 | install_element(ENABLE_NODE, &config_terminal_length_cmd); |
| 3715 | install_element(ENABLE_NODE, &config_terminal_no_length_cmd); |
| 3716 | install_element(ENABLE_NODE, &echo_cmd); |
| 3717 | |
Jacob Erlbeck | 0c987bd | 2013-09-06 16:52:00 +0200 | [diff] [blame] | 3718 | vty_install_default(CONFIG_NODE); |
Harald Welte | 3fb0b6f | 2010-05-19 19:02:52 +0200 | [diff] [blame] | 3719 | } |
| 3720 | |
| 3721 | install_element(CONFIG_NODE, &hostname_cmd); |
| 3722 | install_element(CONFIG_NODE, &no_hostname_cmd); |
| 3723 | |
| 3724 | if (terminal) { |
| 3725 | install_element(CONFIG_NODE, &password_cmd); |
| 3726 | install_element(CONFIG_NODE, &password_text_cmd); |
| 3727 | install_element(CONFIG_NODE, &enable_password_cmd); |
| 3728 | install_element(CONFIG_NODE, &enable_password_text_cmd); |
| 3729 | install_element(CONFIG_NODE, &no_enable_password_cmd); |
| 3730 | |
| 3731 | #ifdef VTY_CRYPT_PW |
| 3732 | install_element(CONFIG_NODE, &service_password_encrypt_cmd); |
| 3733 | install_element(CONFIG_NODE, &no_service_password_encrypt_cmd); |
| 3734 | #endif |
| 3735 | install_element(CONFIG_NODE, &banner_motd_default_cmd); |
| 3736 | install_element(CONFIG_NODE, &banner_motd_file_cmd); |
| 3737 | install_element(CONFIG_NODE, &no_banner_motd_cmd); |
| 3738 | install_element(CONFIG_NODE, &service_terminal_length_cmd); |
| 3739 | install_element(CONFIG_NODE, &no_service_terminal_length_cmd); |
| 3740 | |
| 3741 | } |
| 3742 | srand(time(NULL)); |
| 3743 | } |
Harald Welte | 7acb30c | 2011-08-17 17:13:48 +0200 | [diff] [blame] | 3744 | |
Sylvain Munaut | dca7d2c | 2012-04-18 21:53:23 +0200 | [diff] [blame] | 3745 | /*! @} */ |