vtysh/vtysh_config.c

   1 /* Configuration generator.
   2  * Copyright (C) 2000 Kunihiro Ishiguro
   3  *
   4  * This file is part of GNU Zebra.
   5  *
   6  * GNU Zebra is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2, or (at your option) any
   9  * later version.
  10  *
  11  * GNU Zebra is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; see the file COPYING; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #include <zebra.h>
  22
  23 #include "command.h"
  24 #include "linklist.h"
  25 #include "memory.h"
  26 #include "typesafe.h"
  27
  28 #include "vtysh/vtysh.h"
  29 #include "vtysh/vtysh_user.h"
  30
  31 DEFINE_MGROUP(MVTYSH, "vtysh");
  32 DEFINE_MTYPE_STATIC(MVTYSH, VTYSH_CONFIG, "Vtysh configuration");
  33 DEFINE_MTYPE_STATIC(MVTYSH, VTYSH_CONFIG_LINE, "Vtysh configuration line");
  34
  35 vector configvec;
  36
  37 PREDECL_LIST(config_master);
  38 PREDECL_HASH(config_master_hash);
  39
  40 struct config {
  41         /* Configuration node name. */
  42         char *name;
  43
  44         /* Configuration string line. */
  45         struct list *line;
  46
  47         /* Configuration can be nested. */
  48         struct config *parent;
  49         vector nested;
  50
  51         /* Exit command. */
  52         char *exit;
  53
  54         /* Index of this config. */
  55         uint32_t index;
  56
  57         /* Node entry for the typed Red-black tree */
  58         struct config_master_item rbt_item;
  59         struct config_master_hash_item hash_item;
  60 };
  61
  62 struct list *config_top;
  63
  64 static int line_cmp(char *c1, char *c2)
  65 {
  66         return strcmp(c1, c2);
  67 }
  68
  69 static void line_del(char *line)
  70 {
  71         XFREE(MTYPE_VTYSH_CONFIG_LINE, line);
  72 }
  73
  74 static struct config *config_new(void)
  75 {
  76         struct config *config;
  77         config = XCALLOC(MTYPE_VTYSH_CONFIG, sizeof(struct config));
  78         return config;
  79 }
  80
  81 static void config_del(struct config *config)
  82 {
  83         vector_free(config->nested);
  84         list_delete(&config->line);
  85         if (config->exit)
  86                 XFREE(MTYPE_VTYSH_CONFIG_LINE, config->exit);
  87         XFREE(MTYPE_VTYSH_CONFIG_LINE, config->name);
  88         XFREE(MTYPE_VTYSH_CONFIG, config);
  89 }
  90
  91 static int config_cmp(const struct config *c1, const struct config *c2)
  92 {
  93         return strcmp(c1->name, c2->name);
  94 }
  95
  96 static uint32_t config_hash(const struct config *c)
  97 {
  98         return string_hash_make(c->name);
  99 }
 100
 101 DECLARE_LIST(config_master, struct config, rbt_item);
 102 DECLARE_HASH(config_master_hash, struct config, hash_item, config_cmp,
 103              config_hash);
 104
 105 /*
 106  * The config_master_head is a list for order of receipt
 107  * The hash is for quick lookup under this NODE
 108  */
 109 struct configuration {
 110         struct config_master_head master;
 111         struct config_master_hash_head hash_master;
 112 };
 113
 114 static struct config *config_get_vec(vector vec, int index, const char *line)
 115 {
 116         struct config *config, *config_loop;
 117         struct configuration *configuration;
 118         struct config lookup;
 119
 120         config = config_loop = NULL;
 121
 122         configuration = vector_lookup_ensure(vec, index);
 123
 124         if (!configuration) {
 125                 configuration = XMALLOC(MTYPE_VTYSH_CONFIG,
 126                                         sizeof(struct configuration));
 127                 config_master_init(&configuration->master);
 128                 config_master_hash_init(&configuration->hash_master);
 129                 vector_set_index(vec, index, configuration);
 130         }
 131
 132         lookup.name = (char *)line;
 133         config = config_master_hash_find(&configuration->hash_master, &lookup);
 134
 135         if (!config) {
 136                 config = config_new();
 137                 config->line = list_new();
 138                 config->line->del = (void (*)(void *))line_del;
 139                 config->line->cmp = (int (*)(void *, void *))line_cmp;
 140                 config->name = XSTRDUP(MTYPE_VTYSH_CONFIG_LINE, line);
 141                 config->exit = NULL;
 142                 config->index = index;
 143                 config->nested = vector_init(1);
 144                 config_master_add_tail(&configuration->master, config);
 145                 config_master_hash_add(&configuration->hash_master, config);
 146         }
 147         return config;
 148 }
 149
 150 static struct config *config_get(int index, const char *line)
 151 {
 152         return config_get_vec(configvec, index, line);
 153 }
 154
 155 static struct config *config_get_nested(struct config *parent, int index,
 156                                         const char *line)
 157 {
 158         struct config *config;
 159
 160         config = config_get_vec(parent->nested, index, line);
 161         config->parent = parent;
 162
 163         return config;
 164 }
 165
 166 void config_add_line(struct list *config, const char *line)
 167 {
 168         listnode_add(config, XSTRDUP(MTYPE_VTYSH_CONFIG_LINE, line));
 169 }
 170
 171 static void config_add_line_uniq(struct list *config, const char *line)
 172 {
 173         struct listnode *node, *nnode;
 174         char *pnt;
 175
 176         for (ALL_LIST_ELEMENTS(config, node, nnode, pnt)) {
 177                 if (strcmp(pnt, line) == 0)
 178                         return;
 179         }
 180         listnode_add_sort(config, XSTRDUP(MTYPE_VTYSH_CONFIG_LINE, line));
 181 }
 182
 183 /*
 184  * Add a line that should only be shown once, and always show at the end of the
 185  * config block.
 186  *
 187  * If the line already exists, it will be moved to the end of the block. If it
 188  * does not exist, it will be added at the end of the block.
 189  *
 190  * Note that this only makes sense when there is just one such line that should
 191  * show up at the very end of a config block. Furthermore, if the same block
 192  * can show up from multiple daemons, all of them must make sure to print the
 193  * line at the end of their config, otherwise the line will show at the end of
 194  * the config for the last daemon that printed it.
 195  *
 196  * Here is a motivating example with the 'exit-vrf' command. Suppose we receive
 197  * a config from Zebra like so:
 198  *
 199  * vrf BLUE
 200  *    ip route A
 201  *    ip route B
 202  *    exit-vrf
 203  *
 204  * Then suppose we later receive this config from PIM:
 205  *
 206  * vrf BLUE
 207  *    ip msdp mesh-group MyGroup member 1.2.3.4
 208  *    exit-vrf
 209  *
 210  * Then we will combine them into one config block like so:
 211  *
 212  * vrf BLUE
 213  *    ip route A
 214  *    ip route B
 215  *    ip msdp mesh-group MyGroup member 1.2.3.4
 216  *    exit-vrf
 217  *
 218  * Because PIM also sent us an 'exit-vrf', we noticed that we already had one
 219  * under the 'vrf BLUE' config block and so we moved it to the end of the
 220  * config block again. If PIM had neglected to send us 'exit-vrf', the result
 221  * would be this:
 222  *
 223  * vrf BLUE
 224  *    ip route A
 225  *    ip route B
 226  *    exit-vrf
 227  *    ip msdp mesh-group MyGroup member 1.2.3.4
 228  *
 229  * Therefore, daemons that share config blocks must take care to consistently
 230  * print the same block terminators.
 231  *
 232  * Ideally this would be solved by adding a string to struct config that is
 233  * always printed at the end when dumping a config. However, this would only
 234  * work when the user is using integrated config. In the non-integrated config
 235  * case, daemons are responsible for writing their own config files, and so the
 236  * must be able to print these blocks correctly independently of vtysh, which
 237  * means they are the ones that need to handle printing the block terminators
 238  * and VTYSH needs to be smart enough to combine them properly.
 239  *
 240  * ---
 241  *
 242  * config
 243  *    The config to add the line to
 244  *
 245  * line
 246  *    The line to add to the end of the config
 247  */
 248 static void config_add_line_uniq_end(struct list *config, const char *line)
 249 {
 250         struct listnode *node;
 251         char *pnt;
 252
 253         for (ALL_LIST_ELEMENTS_RO(config, node, pnt)) {
 254                 if (strcmp(pnt, line) == 0)
 255                         break;
 256         }
 257
 258         if (!node)
 259                 config_add_line(config, line);
 260         else
 261                 listnode_move_to_tail(config, node);
 262 }
 263
 264 static void config_add_line_head(struct list *config, const char *line)
 265 {
 266         listnode_add_head(config, XSTRDUP(MTYPE_VTYSH_CONFIG_LINE, line));
 267 }
 268
 269 void vtysh_config_parse_line(void *arg, const char *line)
 270 {
 271         char c;
 272         static struct config *config = NULL;
 273
 274         if (!line)
 275                 return;
 276
 277         c = line[0];
 278
 279         if (c == '\0')
 280                 return;
 281
 282         switch (c) {
 283         /* Suppress exclamation points ! and commented lines. The !s are
 284          * generated
 285          * dynamically in vtysh_config_dump() */
 286         case '!':
 287         case '#':
 288                 break;
 289         case ' ':
 290                 /* Store line to current configuration. */
 291                 if (config) {
 292                         if (config->index == KEYCHAIN_NODE
 293                             && strncmp(line, " key", strlen(" key")) == 0) {
 294                                 config = config_get_nested(
 295                                         config, KEYCHAIN_KEY_NODE, line);
 296                         } else if (config->index == KEYCHAIN_KEY_NODE) {
 297                                 if (strncmp(line, " exit", strlen(" exit"))
 298                                     == 0) {
 299                                         config_add_line_uniq_end(config->line,
 300                                                                  line);
 301                                         config = config->parent;
 302                                 } else {
 303                                         config_add_line_uniq(config->line,
 304                                                              line);
 305                                 }
 306                         } else if (strncmp(line, " link-params",
 307                                            strlen(" link-params"))
 308                                    == 0) {
 309                                 config_add_line(config->line, line);
 310                                 config->index = LINK_PARAMS_NODE;
 311                         } else if (strncmp(line, " ip multicast boundary",
 312                                            strlen(" ip multicast boundary"))
 313                                    == 0) {
 314                                 config_add_line_uniq_end(config->line, line);
 315                         } else if (strncmp(line, " ip igmp query-interval",
 316                                            strlen(" ip igmp query-interval"))
 317                                    == 0) {
 318                                 config_add_line_uniq_end(config->line, line);
 319                         } else if (config->index == LINK_PARAMS_NODE
 320                                    && strncmp(line, " exit-link-params",
 321                                               strlen(" exit"))
 322                                               == 0) {
 323                                 config_add_line(config->line, line);
 324                                 config->index = INTERFACE_NODE;
 325                         } else if (!strncmp(line, " vrrp", strlen(" vrrp"))
 326                                    || !strncmp(line, " no vrrp",
 327                                                strlen(" no vrrp"))) {
 328                                 config_add_line(config->line, line);
 329                         } else if (!strncmp(line, " ip mroute",
 330                                             strlen(" ip mroute"))) {
 331                                 config_add_line_uniq_end(config->line, line);
 332                         } else if (config->index == RMAP_NODE ||
 333                                    config->index == INTERFACE_NODE ||
 334                                    config->index == VTY_NODE)
 335                                 config_add_line_uniq(config->line, line);
 336                         else if (config->index == NH_GROUP_NODE) {
 337                                 if (strncmp(line, " resilient",
 338                                             strlen(" resilient")) == 0)
 339                                         config_add_line_head(config->line,
 340                                                              line);
 341                                 else
 342                                         config_add_line_uniq_end(config->line,
 343                                                                  line);
 344                         } else
 345                                 config_add_line(config->line, line);
 346                 } else
 347                         config_add_line(config_top, line);
 348                 break;
 349         default:
 350                 if (strncmp(line, "exit", strlen("exit")) == 0) {
 351                         if (config) {
 352                                 if (config->exit)
 353                                         XFREE(MTYPE_VTYSH_CONFIG_LINE,
 354                                               config->exit);
 355                                 config->exit =
 356                                         XSTRDUP(MTYPE_VTYSH_CONFIG_LINE, line);
 357                         }
 358                 } else if (strncmp(line, "interface", strlen("interface")) == 0)
 359                         config = config_get(INTERFACE_NODE, line);
 360                 else if (strncmp(line, "pseudowire", strlen("pseudowire")) == 0)
 361                         config = config_get(PW_NODE, line);
 362                 else if (strncmp(line, "vrf", strlen("vrf")) == 0)
 363                         config = config_get(VRF_NODE, line);
 364                 else if (strncmp(line, "nexthop-group", strlen("nexthop-group"))
 365                          == 0)
 366                         config = config_get(NH_GROUP_NODE, line);
 367                 else if (strncmp(line, "router-id", strlen("router-id")) == 0)
 368                         config = config_get(ZEBRA_NODE, line);
 369                 else if (strncmp(line, "router rip", strlen("router rip")) == 0)
 370                         config = config_get(RIP_NODE, line);
 371                 else if (strncmp(line, "router ripng", strlen("router ripng"))
 372                          == 0)
 373                         config = config_get(RIPNG_NODE, line);
 374                 else if (strncmp(line, "router eigrp", strlen("router eigrp"))
 375                          == 0)
 376                         config = config_get(EIGRP_NODE, line);
 377                 else if (strncmp(line, "router babel", strlen("router babel"))
 378                          == 0)
 379                         config = config_get(BABEL_NODE, line);
 380                 else if (strncmp(line, "router ospf", strlen("router ospf"))
 381                          == 0)
 382                         config = config_get(OSPF_NODE, line);
 383                 else if (strncmp(line, "router ospf6", strlen("router ospf6"))
 384                          == 0)
 385                         config = config_get(OSPF6_NODE, line);
 386                 else if (strncmp(line, "mpls ldp", strlen("mpls ldp")) == 0)
 387                         config = config_get(LDP_NODE, line);
 388                 else if (strncmp(line, "l2vpn", strlen("l2vpn")) == 0)
 389                         config = config_get(LDP_L2VPN_NODE, line);
 390                 else if (strncmp(line, "router bgp", strlen("router bgp")) == 0)
 391                         config = config_get(BGP_NODE, line);
 392                 else if (strncmp(line, "router isis", strlen("router isis"))
 393                          == 0)
 394                         config = config_get(ISIS_NODE, line);
 395                 else if (strncmp(line, "router openfabric", strlen("router openfabric"))
 396                          == 0)
 397                         config = config_get(OPENFABRIC_NODE, line);
 398                 else if (strncmp(line, "route-map", strlen("route-map")) == 0)
 399                         config = config_get(RMAP_NODE, line);
 400                 else if (strncmp(line, "no route-map", strlen("no route-map"))
 401                          == 0)
 402                         config = config_get(RMAP_NODE, line);
 403                 else if (strncmp(line, "pbr-map", strlen("pbr-map")) == 0)
 404                         config = config_get(PBRMAP_NODE, line);
 405                 else if (strncmp(line, "access-list", strlen("access-list"))
 406                          == 0)
 407                         config = config_get(ACCESS_NODE, line);
 408                 else if (strncmp(line, "ipv6 access-list",
 409                                  strlen("ipv6 access-list"))
 410                          == 0)
 411                         config = config_get(ACCESS_IPV6_NODE, line);
 412                 else if (strncmp(line, "mac access-list",
 413                                  strlen("mac access-list"))
 414                          == 0)
 415                         config = config_get(ACCESS_MAC_NODE, line);
 416                 else if (strncmp(line, "ip prefix-list",
 417                                  strlen("ip prefix-list"))
 418                          == 0)
 419                         config = config_get(PREFIX_NODE, line);
 420                 else if (strncmp(line, "ipv6 prefix-list",
 421                                  strlen("ipv6 prefix-list"))
 422                          == 0)
 423                         config = config_get(PREFIX_IPV6_NODE, line);
 424                 else if (strncmp(line, "bgp as-path access-list",
 425                                  strlen("bgp as-path access-list"))
 426                          == 0)
 427                         config = config_get(AS_LIST_NODE, line);
 428                 else if (strncmp(line, "bgp community-list",
 429                                  strlen("bgp community-list"))
 430                                  == 0
 431                          || strncmp(line, "bgp extcommunity-list",
 432                                     strlen("bgp extcommunity-list"))
 433                                     == 0
 434                          || strncmp(line, "bgp large-community-list",
 435                                     strlen("bgp large-community-list"))
 436                                     == 0)
 437                         config = config_get(COMMUNITY_LIST_NODE, line);
 438                 else if (strncmp(line, "bgp community alias",
 439                                  strlen("bgp community alias")) == 0)
 440                         config = config_get(COMMUNITY_ALIAS_NODE, line);
 441                 else if (strncmp(line, "ip route", strlen("ip route")) == 0)
 442                         config = config_get(IP_NODE, line);
 443                 else if (strncmp(line, "ipv6 route", strlen("ipv6 route")) == 0)
 444                         config = config_get(IP_NODE, line);
 445                 else if (strncmp(line, "key", strlen("key")) == 0)
 446                         config = config_get(KEYCHAIN_NODE, line);
 447                 else if (strncmp(line, "line", strlen("line")) == 0)
 448                         config = config_get(VTY_NODE, line);
 449                 else if ((strncmp(line, "ipv6 forwarding",
 450                                   strlen("ipv6 forwarding"))
 451                           == 0)
 452                          || (strncmp(line, "ip forwarding",
 453                                      strlen("ip forwarding"))
 454                              == 0))
 455                         config = config_get(FORWARDING_NODE, line);
 456                 else if (strncmp(line, "debug vrf", strlen("debug vrf")) == 0)
 457                         config = config_get(VRF_DEBUG_NODE, line);
 458                 else if (strncmp(line, "debug northbound",
 459                                  strlen("debug northbound"))
 460                          == 0)
 461                         config = config_get(NORTHBOUND_DEBUG_NODE, line);
 462                 else if (strncmp(line, "debug route-map",
 463                                  strlen("debug route-map"))
 464                          == 0)
 465                         config = config_get(RMAP_DEBUG_NODE, line);
 466                 else if (strncmp(line, "debug resolver",
 467                                  strlen("debug resolver")) == 0)
 468                         config = config_get(RESOLVER_DEBUG_NODE, line);
 469                 else if (strncmp(line, "debug", strlen("debug")) == 0)
 470                         config = config_get(DEBUG_NODE, line);
 471                 else if (strncmp(line, "password", strlen("password")) == 0
 472                          || strncmp(line, "enable password",
 473                                     strlen("enable password"))
 474                                     == 0)
 475                         config = config_get(AAA_NODE, line);
 476                 else if (strncmp(line, "ip protocol", strlen("ip protocol"))
 477                          == 0)
 478                         config = config_get(PROTOCOL_NODE, line);
 479                 else if (strncmp(line, "ipv6 protocol", strlen("ipv6 protocol"))
 480                          == 0)
 481                         config = config_get(PROTOCOL_NODE, line);
 482                 else if (strncmp(line, "ip nht", strlen("ip nht")) == 0)
 483                         config = config_get(PROTOCOL_NODE, line);
 484                 else if (strncmp(line, "ipv6 nht", strlen("ipv6 nht")) == 0)
 485                         config = config_get(PROTOCOL_NODE, line);
 486                 else if (strncmp(line, "mpls", strlen("mpls")) == 0)
 487                         config = config_get(MPLS_NODE, line);
 488                 else if (strncmp(line, "segment-routing",
 489                                  strlen("segment-routing"))
 490                          == 0)
 491                         config = config_get(SEGMENT_ROUTING_NODE, line);
 492                 else if (strncmp(line, "bfd", strlen("bfd")) == 0)
 493                         config = config_get(BFD_NODE, line);
 494                 else if (strncmp(line, "rpki", strlen("rpki")) == 0)
 495                         config = config_get(RPKI_NODE, line);
 496                 else {
 497                         if (strncmp(line, "log", strlen("log")) == 0 ||
 498                             strncmp(line, "hostname", strlen("hostname")) ==
 499                                     0 ||
 500                             strncmp(line, "domainname", strlen("domainname")) ==
 501                                     0 ||
 502                             strncmp(line, "allow-reserved-ranges",
 503                                     strlen("allow-reserved-ranges")) == 0 ||
 504                             strncmp(line, "frr", strlen("frr")) == 0 ||
 505                             strncmp(line, "agentx", strlen("agentx")) == 0 ||
 506                             strncmp(line, "no log", strlen("no log")) == 0 ||
 507                             strncmp(line, "no ip prefix-list",
 508                                     strlen("no ip prefix-list")) == 0 ||
 509                             strncmp(line, "no ipv6 prefix-list",
 510                                     strlen("no ipv6 prefix-list")) == 0 ||
 511                             strncmp(line, "service ", strlen("service ")) ==
 512                                     0 ||
 513                             strncmp(line, "no service cputime-stats",
 514                                     strlen("no service cputime-stats")) == 0 ||
 515                             strncmp(line, "service cputime-warning",
 516                                     strlen("service cputime-warning")) == 0)
 517                                 config_add_line_uniq(config_top, line);
 518                         else
 519                                 config_add_line(config_top, line);
 520                         config = NULL;
 521                 }
 522                 break;
 523         }
 524 }
 525
 526 /* Macro to check delimiter is needed between each configuration line
 527  * or not. */
 528 #define NO_DELIMITER(I)                                                        \
 529         ((I) == ACCESS_NODE || (I) == PREFIX_NODE || (I) == IP_NODE            \
 530          || (I) == AS_LIST_NODE || (I) == COMMUNITY_LIST_NODE                  \
 531          || (I) == COMMUNITY_ALIAS_NODE || (I) == ACCESS_IPV6_NODE             \
 532          || (I) == ACCESS_MAC_NODE || (I) == PREFIX_IPV6_NODE                  \
 533          || (I) == FORWARDING_NODE || (I) == DEBUG_NODE || (I) == AAA_NODE     \
 534          || (I) == VRF_DEBUG_NODE || (I) == NORTHBOUND_DEBUG_NODE              \
 535          || (I) == RMAP_DEBUG_NODE || (I) == RESOLVER_DEBUG_NODE               \
 536          || (I) == MPLS_NODE || (I) == KEYCHAIN_KEY_NODE)
 537
 538 static void configvec_dump(vector vec, bool nested)
 539 {
 540         struct listnode *mnode, *mnnode;
 541         struct config *config;
 542         struct configuration *configuration;
 543         char *line;
 544         unsigned int i;
 545
 546         for (i = 0; i < vector_active(vec); i++)
 547                 if ((configuration = vector_slot(vec, i)) != NULL) {
 548                         while ((config = config_master_pop(
 549                                         &configuration->master))) {
 550                                 config_master_hash_del(
 551                                         &configuration->hash_master, config);
 552                                 /* Don't print empty sections for interface.
 553                                  * Route maps on the
 554                                  * other hand could have a legitimate empty
 555                                  * section at the end.
 556                                  * VRF is handled in the backend, we could have
 557                                  * "configured" VRFs with static routes which
 558                                  * are not under the VRF node.
 559                                  */
 560                                 if (config->index == INTERFACE_NODE
 561                                     && (listcount(config->line) == 1)
 562                                     && (line = listnode_head(config->line))
 563                                     && strmatch(line, "exit")) {
 564                                         config_del(config);
 565                                         continue;
 566                                 }
 567
 568                                 vty_out(vty, "%s\n", config->name);
 569
 570                                 for (ALL_LIST_ELEMENTS(config->line, mnode,
 571                                                        mnnode, line))
 572                                         vty_out(vty, "%s\n", line);
 573
 574                                 configvec_dump(config->nested, true);
 575
 576                                 if (config->exit)
 577                                         vty_out(vty, "%s\n", config->exit);
 578
 579                                 if (!NO_DELIMITER(i))
 580                                         vty_out(vty, "!\n");
 581
 582                                 config_del(config);
 583                         }
 584                         config_master_fini(&configuration->master);
 585                         config_master_hash_fini(&configuration->hash_master);
 586                         XFREE(MTYPE_VTYSH_CONFIG, configuration);
 587                         vector_slot(vec, i) = NULL;
 588                         if (!nested && NO_DELIMITER(i))
 589                                 vty_out(vty, "!\n");
 590                 }
 591 }
 592
 593 void vtysh_config_dump(void)
 594 {
 595         struct listnode *node, *nnode;
 596         char *line;
 597
 598         for (ALL_LIST_ELEMENTS(config_top, node, nnode, line))
 599                 vty_out(vty, "%s\n", line);
 600
 601         list_delete_all_node(config_top);
 602
 603         vty_out(vty, "!\n");
 604
 605         configvec_dump(configvec, false);
 606 }
 607
 608 /* Read up configuration file from file_name. */
 609 static int vtysh_read_file(FILE *confp, bool dry_run)
 610 {
 611         struct vty *vty;
 612         int ret;
 613
 614         vty = vty_new();
 615         vty->wfd = STDERR_FILENO;
 616         vty->type = VTY_TERM;
 617         vty->node = CONFIG_NODE;
 618
 619         vtysh_execute_no_pager("enable");
 620         vtysh_execute_no_pager("configure terminal");
 621
 622         if (!dry_run)
 623                 vtysh_execute_no_pager("XFRR_start_configuration");
 624
 625         /* Execute configuration file. */
 626         ret = vtysh_config_from_file(vty, confp);
 627
 628         if (!dry_run)
 629                 vtysh_execute_no_pager("XFRR_end_configuration");
 630
 631         vtysh_execute_no_pager("end");
 632         vtysh_execute_no_pager("disable");
 633
 634         vty_close(vty);
 635
 636         return (ret);
 637 }
 638
 639 /* Read up configuration file from config_default_dir. */
 640 int vtysh_read_config(const char *config_default_dir, bool dry_run)
 641 {
 642         FILE *confp = NULL;
 643         bool save;
 644         int ret;
 645
 646         confp = fopen(config_default_dir, "r");
 647         if (confp == NULL) {
 648                 fprintf(stderr,
 649                         "%% Can't open configuration file %s due to '%s'.\n",
 650                         config_default_dir, safe_strerror(errno));
 651                 return CMD_ERR_NO_FILE;
 652         }
 653
 654         save = vtysh_add_timestamp;
 655         vtysh_add_timestamp = false;
 656
 657         ret = vtysh_read_file(confp, dry_run);
 658         fclose(confp);
 659
 660         vtysh_add_timestamp = save;
 661
 662         return (ret);
 663 }
 664
 665 /* We don't write vtysh specific into file from vtysh. vtysh.conf should
 666  * be edited by hand. So, we handle only "write terminal" case here and
 667  * integrate vtysh specific conf with conf from daemons.
 668  */
 669 void vtysh_config_write(void)
 670 {
 671         const char *name;
 672         char line[512];
 673
 674         name = cmd_hostname_get();
 675         if (name && name[0] != '\0') {
 676                 snprintf(line, sizeof(line), "hostname %s", name);
 677                 vtysh_config_parse_line(NULL, line);
 678         }
 679
 680         name = cmd_domainname_get();
 681         if (name && name[0] != '\0') {
 682                 snprintf(line, sizeof(line), "domainname %s", name);
 683                 vtysh_config_parse_line(NULL, line);
 684         }
 685
 686         if (vtysh_write_integrated == WRITE_INTEGRATED_NO)
 687                 vtysh_config_parse_line(NULL,
 688                                         "no service integrated-vtysh-config");
 689         if (vtysh_write_integrated == WRITE_INTEGRATED_YES)
 690                 vtysh_config_parse_line(NULL,
 691                                         "service integrated-vtysh-config");
 692
 693         user_config_write();
 694 }
 695
 696 void vtysh_config_init(void)
 697 {
 698         config_top = list_new();
 699         config_top->del = (void (*)(void *))line_del;
 700         configvec = vector_init(1);
 701 }