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Commit | Line | Data |
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718e3744 | 1 | /* Virtual terminal interface shell. |
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 | * | |
896014f4 DL |
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 | |
718e3744 | 19 | */ |
20 | ||
21 | #include <zebra.h> | |
22 | ||
23 | #include <sys/un.h> | |
24 | #include <setjmp.h> | |
25 | #include <sys/wait.h> | |
26 | #include <pwd.h> | |
e43716f6 DS |
27 | #include <sys/file.h> |
28 | #include <unistd.h> | |
718e3744 | 29 | |
30 | #include <readline/readline.h> | |
31 | #include <readline/history.h> | |
32 | ||
8860ffdc DS |
33 | /* |
34 | * The append_history function only appears in newer versions | |
35 | * of the readline library it appears like. Since we don't | |
36 | * need this just silently ignore the code on these | |
37 | * ancient platforms. | |
38 | */ | |
39 | #if !defined HAVE_APPEND_HISTORY | |
40 | #define append_history(A, B) | |
41 | #endif | |
42 | ||
5e4fa164 | 43 | #include <lib/version.h> |
718e3744 | 44 | #include "getopt.h" |
45 | #include "command.h" | |
f366ad31 | 46 | #include "memory.h" |
4201dd11 | 47 | #include "linklist.h" |
eb05883f | 48 | #include "libfrr.h" |
1f9128d6 QY |
49 | #include "ferr.h" |
50 | #include "lib_errors.h" | |
718e3744 | 51 | |
52 | #include "vtysh/vtysh.h" | |
53 | #include "vtysh/vtysh_user.h" | |
b094d260 | 54 | |
718e3744 | 55 | /* VTY shell program name. */ |
56 | char *progname; | |
57 | ||
32f3268f DL |
58 | /* SUID mode */ |
59 | static uid_t elevuid, realuid; | |
60 | static gid_t elevgid, realgid; | |
61 | ||
9b8a8249 DL |
62 | #define VTYSH_CONFIG_NAME "vtysh.conf" |
63 | #define FRR_CONFIG_NAME "frr.conf" | |
64 | ||
67e29abc | 65 | /* Configuration file name and directory. */ |
ff44f570 DS |
66 | static char vtysh_config[MAXPATHLEN * 3]; |
67 | char frr_config[MAXPATHLEN * 3]; | |
9b8a8249 DL |
68 | char vtydir[MAXPATHLEN]; |
69 | static char history_file[MAXPATHLEN]; | |
718e3744 | 70 | |
718e3744 | 71 | /* Flag for indicate executing child command. */ |
72 | int execute_flag = 0; | |
73 | ||
86b28610 | 74 | /* Flag to indicate if in user/unprivileged mode. */ |
186f6af2 | 75 | int user_mode; |
86b28610 | 76 | |
718e3744 | 77 | /* For sigsetjmp() & siglongjmp(). */ |
78 | static sigjmp_buf jmpbuf; | |
79 | ||
80 | /* Flag for avoid recursive siglongjmp() call. */ | |
81 | static int jmpflag = 0; | |
82 | ||
83 | /* A static variable for holding the line. */ | |
84 | static char *line_read; | |
85 | ||
86 | /* Master of threads. */ | |
87 | struct thread_master *master; | |
b094d260 | 88 | |
57fb9748 SH |
89 | /* Command logging */ |
90 | FILE *logfile; | |
91 | ||
718e3744 | 92 | /* SIGTSTP handler. This function care user's ^Z input. */ |
d62a17ae | 93 | static void sigtstp(int sig) |
718e3744 | 94 | { |
d62a17ae | 95 | /* Execute "end" command. */ |
96 | vtysh_execute("end"); | |
718e3744 | 97 | |
d62a17ae | 98 | /* Initialize readline. */ |
99 | rl_initialize(); | |
100 | printf("\n"); | |
718e3744 | 101 | |
d62a17ae | 102 | /* Check jmpflag for duplicate siglongjmp(). */ |
103 | if (!jmpflag) | |
104 | return; | |
718e3744 | 105 | |
d62a17ae | 106 | jmpflag = 0; |
107 | ||
108 | /* Back to main command loop. */ | |
109 | siglongjmp(jmpbuf, 1); | |
718e3744 | 110 | } |
111 | ||
112 | /* SIGINT handler. This function care user's ^Z input. */ | |
d62a17ae | 113 | static void sigint(int sig) |
718e3744 | 114 | { |
d62a17ae | 115 | /* Check this process is not child process. */ |
116 | if (!execute_flag) { | |
117 | rl_initialize(); | |
118 | printf("\n"); | |
119 | rl_forced_update_display(); | |
120 | } | |
718e3744 | 121 | } |
122 | ||
e42f5a37 | 123 | /* Signale wrapper for vtysh. We don't use sigevent because |
124 | * vtysh doesn't use threads. TODO */ | |
d62a17ae | 125 | static void vtysh_signal_set(int signo, void (*func)(int)) |
718e3744 | 126 | { |
d62a17ae | 127 | struct sigaction sig; |
128 | struct sigaction osig; | |
718e3744 | 129 | |
d62a17ae | 130 | sig.sa_handler = func; |
131 | sigemptyset(&sig.sa_mask); | |
132 | sig.sa_flags = 0; | |
718e3744 | 133 | #ifdef SA_RESTART |
d62a17ae | 134 | sig.sa_flags |= SA_RESTART; |
718e3744 | 135 | #endif /* SA_RESTART */ |
136 | ||
d62a17ae | 137 | sigaction(signo, &sig, &osig); |
718e3744 | 138 | } |
139 | ||
140 | /* Initialization of signal handles. */ | |
d62a17ae | 141 | static void vtysh_signal_init(void) |
718e3744 | 142 | { |
d62a17ae | 143 | vtysh_signal_set(SIGINT, sigint); |
144 | vtysh_signal_set(SIGTSTP, sigtstp); | |
145 | vtysh_signal_set(SIGPIPE, SIG_IGN); | |
718e3744 | 146 | } |
b094d260 | 147 | |
718e3744 | 148 | /* Help information display. */ |
d62a17ae | 149 | static void usage(int status) |
718e3744 | 150 | { |
d62a17ae | 151 | if (status != 0) |
152 | fprintf(stderr, "Try `%s --help' for more information.\n", | |
153 | progname); | |
154 | else | |
155 | printf("Usage : %s [OPTION...]\n\n" | |
156 | "Integrated shell for FRR. \n\n" | |
157 | "-b, --boot Execute boot startup configuration\n" | |
158 | "-c, --command Execute argument as command\n" | |
159 | "-d, --daemon Connect only to the specified daemon\n" | |
160 | "-f, --inputfile Execute commands from specific file and exit\n" | |
161 | "-E, --echo Echo prompt and command in -c mode\n" | |
162 | "-C, --dryrun Check configuration for validity and exit\n" | |
163 | "-m, --markfile Mark input file with context end\n" | |
164 | " --vty_socket Override vty socket path\n" | |
165 | " --config_dir Override config directory path\n" | |
8bd33a03 | 166 | "-N --pathspace Insert prefix into config & socket paths\n" |
86b28610 | 167 | "-u --user Run as an unprivileged user\n" |
d62a17ae | 168 | "-w, --writeconfig Write integrated config (frr.conf) and exit\n" |
169 | "-h, --help Display this help and exit\n\n" | |
170 | "Note that multiple commands may be executed from the command\n" | |
171 | "line by passing multiple -c args, or by embedding linefeed\n" | |
172 | "characters in one or more of the commands.\n\n" | |
173 | "Report bugs to %s\n", | |
174 | progname, FRR_BUG_ADDRESS); | |
175 | ||
176 | exit(status); | |
718e3744 | 177 | } |
178 | ||
179 | /* VTY shell options, we use GNU getopt library. */ | |
87d79a9f | 180 | #define OPTION_VTYSOCK 1000 |
ce2e9ec3 | 181 | #define OPTION_CONFDIR 1001 |
d62a17ae | 182 | struct option longopts[] = { |
183 | {"boot", no_argument, NULL, 'b'}, | |
184 | /* For compatibility with older zebra/quagga versions */ | |
185 | {"eval", required_argument, NULL, 'e'}, | |
186 | {"command", required_argument, NULL, 'c'}, | |
187 | {"daemon", required_argument, NULL, 'd'}, | |
188 | {"vty_socket", required_argument, NULL, OPTION_VTYSOCK}, | |
189 | {"config_dir", required_argument, NULL, OPTION_CONFDIR}, | |
190 | {"inputfile", required_argument, NULL, 'f'}, | |
191 | {"echo", no_argument, NULL, 'E'}, | |
192 | {"dryrun", no_argument, NULL, 'C'}, | |
193 | {"help", no_argument, NULL, 'h'}, | |
194 | {"noerror", no_argument, NULL, 'n'}, | |
195 | {"mark", no_argument, NULL, 'm'}, | |
196 | {"writeconfig", no_argument, NULL, 'w'}, | |
bd29d463 | 197 | {"pathspace", required_argument, NULL, 'N'}, |
86b28610 | 198 | {"user", no_argument, NULL, 'u'}, |
d62a17ae | 199 | {0}}; |
b094d260 | 200 | |
718e3744 | 201 | /* Read a string, and return a pointer to it. Returns NULL on EOF. */ |
d62a17ae | 202 | static char *vtysh_rl_gets(void) |
718e3744 | 203 | { |
d62a17ae | 204 | HIST_ENTRY *last; |
205 | /* If the buffer has already been allocated, return the memory | |
206 | * to the free pool. */ | |
207 | if (line_read) { | |
208 | free(line_read); | |
209 | line_read = NULL; | |
210 | } | |
211 | ||
212 | /* Get a line from the user. Change prompt according to node. XXX. */ | |
213 | line_read = readline(vtysh_prompt()); | |
214 | ||
215 | /* If the line has any text in it, save it on the history. But only if | |
216 | * last command in history isn't the same one. */ | |
217 | if (line_read && *line_read) { | |
218 | using_history(); | |
219 | last = previous_history(); | |
220 | if (!last || strcmp(last->line, line_read) != 0) { | |
221 | add_history(line_read); | |
222 | append_history(1, history_file); | |
223 | } | |
224 | } | |
225 | ||
226 | return (line_read); | |
718e3744 | 227 | } |
b094d260 | 228 | |
57fb9748 SH |
229 | static void log_it(const char *line) |
230 | { | |
d62a17ae | 231 | time_t t = time(NULL); |
a2700b50 | 232 | struct tm tmp; |
d62a17ae | 233 | const char *user = getenv("USER"); |
234 | char tod[64]; | |
57fb9748 | 235 | |
a2700b50 | 236 | localtime_r(&t, &tmp); |
d62a17ae | 237 | if (!user) |
238 | user = "boot"; | |
f03db93b | 239 | |
0d6f7fd6 | 240 | strftime(tod, sizeof(tod), "%Y%m%d-%H:%M.%S", &tmp); |
d62a17ae | 241 | |
242 | fprintf(logfile, "%s:%s %s\n", tod, user, line); | |
57fb9748 SH |
243 | } |
244 | ||
e43716f6 DS |
245 | static int flock_fd; |
246 | ||
d62a17ae | 247 | static void vtysh_flock_config(const char *flock_file) |
e43716f6 | 248 | { |
d62a17ae | 249 | int count = 0; |
250 | ||
251 | flock_fd = open(flock_file, O_RDONLY, 0644); | |
252 | if (flock_fd < 0) { | |
253 | fprintf(stderr, "Unable to create lock file: %s, %s\n", | |
254 | flock_file, safe_strerror(errno)); | |
255 | return; | |
256 | } | |
257 | ||
258 | while (count < 400 && (flock(flock_fd, LOCK_EX | LOCK_NB) < 0)) { | |
259 | count++; | |
260 | usleep(500000); | |
261 | } | |
262 | ||
263 | if (count >= 400) | |
264 | fprintf(stderr, | |
265 | "Flock of %s failed, continuing this may cause issues\n", | |
266 | flock_file); | |
e43716f6 DS |
267 | } |
268 | ||
d62a17ae | 269 | static void vtysh_unflock_config(void) |
e43716f6 | 270 | { |
d62a17ae | 271 | flock(flock_fd, LOCK_UN); |
272 | close(flock_fd); | |
e43716f6 DS |
273 | } |
274 | ||
32f3268f DL |
275 | void suid_on(void) |
276 | { | |
277 | if (elevuid != realuid && seteuid(elevuid)) { | |
278 | perror("seteuid(on)"); | |
279 | exit(1); | |
280 | } | |
281 | if (elevgid != realgid && setegid(elevgid)) { | |
282 | perror("setegid(on)"); | |
283 | exit(1); | |
284 | } | |
285 | } | |
286 | ||
287 | void suid_off(void) | |
288 | { | |
289 | if (elevuid != realuid && seteuid(realuid)) { | |
290 | perror("seteuid(off)"); | |
291 | exit(1); | |
292 | } | |
293 | if (elevgid != realgid && setegid(realgid)) { | |
294 | perror("setegid(off)"); | |
295 | exit(1); | |
296 | } | |
297 | } | |
298 | ||
718e3744 | 299 | /* VTY shell main routine. */ |
d62a17ae | 300 | int main(int argc, char **argv, char **env) |
718e3744 | 301 | { |
d62a17ae | 302 | char *p; |
303 | int opt; | |
304 | int dryrun = 0; | |
305 | int boot_flag = 0; | |
306 | const char *daemon_name = NULL; | |
307 | const char *inputfile = NULL; | |
d62a17ae | 308 | struct cmd_rec { |
309 | char *line; | |
310 | struct cmd_rec *next; | |
311 | } *cmd = NULL; | |
312 | struct cmd_rec *tail = NULL; | |
313 | int echo_command = 0; | |
314 | int no_error = 0; | |
315 | int markfile = 0; | |
316 | int writeconfig = 0; | |
317 | int ret = 0; | |
318 | char *homedir = NULL; | |
32f3268f | 319 | int ditch_suid = 0; |
9b8a8249 | 320 | char sysconfdir[MAXPATHLEN]; |
1dede1f8 | 321 | const char *pathspace_arg = NULL; |
8bd33a03 | 322 | char pathspace[MAXPATHLEN] = ""; |
d62a17ae | 323 | |
32f3268f DL |
324 | /* SUID: drop down to calling user & go back up when needed */ |
325 | elevuid = geteuid(); | |
326 | elevgid = getegid(); | |
327 | realuid = getuid(); | |
328 | realgid = getgid(); | |
329 | suid_off(); | |
d62a17ae | 330 | |
186f6af2 LB |
331 | user_mode = 0; /* may be set in options processing */ |
332 | ||
d62a17ae | 333 | /* Preserve name of myself. */ |
334 | progname = ((p = strrchr(argv[0], '/')) ? ++p : argv[0]); | |
335 | ||
9b8a8249 | 336 | strlcpy(sysconfdir, frr_sysconfdir, sizeof(sysconfdir)); |
43e587c1 DS |
337 | |
338 | frr_init_vtydir(); | |
9b8a8249 DL |
339 | strlcpy(vtydir, frr_vtydir, sizeof(vtydir)); |
340 | ||
d62a17ae | 341 | /* Option handling. */ |
342 | while (1) { | |
186f6af2 LB |
343 | opt = getopt_long(argc, argv, "be:c:d:nf:mEhCwN:u", |
344 | longopts, 0); | |
d62a17ae | 345 | |
346 | if (opt == EOF) | |
347 | break; | |
348 | ||
349 | switch (opt) { | |
350 | case 0: | |
351 | break; | |
352 | case 'b': | |
353 | boot_flag = 1; | |
354 | break; | |
355 | case 'e': | |
356 | case 'c': { | |
357 | struct cmd_rec *cr; | |
358 | cr = XMALLOC(MTYPE_TMP, sizeof(*cr)); | |
359 | cr->line = optarg; | |
360 | cr->next = NULL; | |
361 | if (tail) | |
362 | tail->next = cr; | |
363 | else | |
364 | cmd = cr; | |
365 | tail = cr; | |
366 | } break; | |
367 | case OPTION_VTYSOCK: | |
32f3268f | 368 | ditch_suid = 1; /* option disables SUID */ |
9b8a8249 | 369 | strlcpy(vtydir, optarg, sizeof(vtydir)); |
d62a17ae | 370 | break; |
371 | case OPTION_CONFDIR: | |
32f3268f | 372 | ditch_suid = 1; /* option disables SUID */ |
45d00587 | 373 | snprintf(sysconfdir, sizeof(sysconfdir), "%s/", optarg); |
d62a17ae | 374 | break; |
8bd33a03 DL |
375 | case 'N': |
376 | if (strchr(optarg, '/') || strchr(optarg, '.')) { | |
377 | fprintf(stderr, | |
378 | "slashes or dots are not permitted in the --pathspace option.\n"); | |
379 | exit(1); | |
380 | } | |
1dede1f8 CF |
381 | pathspace_arg = optarg; |
382 | snprintf(pathspace, sizeof(pathspace), "%s/", optarg); | |
8bd33a03 | 383 | break; |
d62a17ae | 384 | case 'd': |
385 | daemon_name = optarg; | |
386 | break; | |
387 | case 'f': | |
388 | inputfile = optarg; | |
389 | break; | |
390 | case 'm': | |
391 | markfile = 1; | |
392 | break; | |
393 | case 'n': | |
394 | no_error = 1; | |
395 | break; | |
396 | case 'E': | |
397 | echo_command = 1; | |
398 | break; | |
399 | case 'C': | |
400 | dryrun = 1; | |
401 | break; | |
86b28610 LB |
402 | case 'u': |
403 | user_mode = 1; | |
404 | break; | |
d62a17ae | 405 | case 'w': |
406 | writeconfig = 1; | |
407 | break; | |
408 | case 'h': | |
409 | usage(0); | |
410 | break; | |
411 | default: | |
412 | usage(1); | |
413 | break; | |
414 | } | |
415 | } | |
416 | ||
32f3268f DL |
417 | if (ditch_suid) { |
418 | elevuid = realuid; | |
419 | elevgid = realgid; | |
420 | } | |
421 | ||
d62a17ae | 422 | if (markfile + writeconfig + dryrun + boot_flag > 1) { |
423 | fprintf(stderr, | |
3efd0893 | 424 | "Invalid combination of arguments. Please specify at most one of:\n\t-b, -C, -m, -w\n"); |
d62a17ae | 425 | return 1; |
426 | } | |
427 | if (inputfile && (writeconfig || boot_flag)) { | |
428 | fprintf(stderr, | |
3efd0893 | 429 | "WARNING: Combinining the -f option with -b or -w is NOT SUPPORTED since its\nresults are inconsistent!\n"); |
d62a17ae | 430 | } |
431 | ||
e82314b1 | 432 | snprintf(vtysh_config, sizeof(vtysh_config), "%s%s%s", sysconfdir, |
60466a63 | 433 | pathspace, VTYSH_CONFIG_NAME); |
e82314b1 | 434 | snprintf(frr_config, sizeof(frr_config), "%s%s%s", sysconfdir, |
60466a63 | 435 | pathspace, FRR_CONFIG_NAME); |
1dede1f8 CF |
436 | |
437 | if (pathspace_arg) { | |
438 | strlcat(vtydir, "/", sizeof(vtydir)); | |
439 | strlcat(vtydir, pathspace_arg, sizeof(vtydir)); | |
440 | } | |
9b8a8249 | 441 | |
d62a17ae | 442 | /* Initialize user input buffer. */ |
443 | line_read = NULL; | |
444 | setlinebuf(stdout); | |
445 | ||
446 | /* Signal and others. */ | |
447 | vtysh_signal_init(); | |
448 | ||
449 | /* Make vty structure and register commands. */ | |
450 | vtysh_init_vty(); | |
451 | vtysh_init_cmd(); | |
452 | vtysh_user_init(); | |
453 | vtysh_config_init(); | |
454 | ||
455 | vty_init_vtysh(); | |
456 | ||
86b28610 LB |
457 | if (!user_mode) { |
458 | /* Read vtysh configuration file before connecting to daemons. | |
459 | * (file may not be readable to calling user in SUID mode) */ | |
460 | suid_on(); | |
461 | vtysh_read_config(vtysh_config); | |
462 | suid_off(); | |
463 | } | |
1f9128d6 QY |
464 | /* Error code library system */ |
465 | log_ref_init(); | |
466 | lib_error_init(); | |
d62a17ae | 467 | |
468 | if (markfile) { | |
469 | if (!inputfile) { | |
470 | fprintf(stderr, | |
471 | "-f option MUST be specified with -m option\n"); | |
95f7965d | 472 | return 1; |
d62a17ae | 473 | } |
474 | return (vtysh_mark_file(inputfile)); | |
475 | } | |
476 | ||
477 | /* Start execution only if not in dry-run mode */ | |
478 | if (dryrun && !cmd) { | |
479 | if (inputfile) { | |
480 | ret = vtysh_read_config(inputfile); | |
481 | } else { | |
9b8a8249 | 482 | ret = vtysh_read_config(frr_config); |
d62a17ae | 483 | } |
484 | ||
485 | exit(ret); | |
718e3744 | 486 | } |
d62a17ae | 487 | |
47402c0f | 488 | if (dryrun && cmd && cmd->line) { |
f205fcdb LB |
489 | if (!user_mode) |
490 | vtysh_execute("enable"); | |
d62a17ae | 491 | while (cmd) { |
492 | struct cmd_rec *cr; | |
493 | char *cmdnow = cmd->line, *next; | |
494 | do { | |
495 | next = strchr(cmdnow, '\n'); | |
496 | if (next) | |
497 | *next++ = '\0'; | |
498 | ||
499 | if (echo_command) | |
500 | printf("%s%s\n", vtysh_prompt(), | |
501 | cmdnow); | |
502 | ||
503 | ret = vtysh_execute_no_pager(cmdnow); | |
504 | if (!no_error | |
505 | && !(ret == CMD_SUCCESS | |
506 | || ret == CMD_SUCCESS_DAEMON | |
507 | || ret == CMD_WARNING)) | |
508 | exit(1); | |
509 | } while ((cmdnow = next) != NULL); | |
510 | ||
511 | cr = cmd; | |
512 | cmd = cmd->next; | |
513 | XFREE(MTYPE_TMP, cr); | |
514 | } | |
515 | exit(ret); | |
0846286b | 516 | } |
d62a17ae | 517 | |
518 | /* Ignore error messages */ | |
519 | if (no_error) { | |
520 | if (freopen("/dev/null", "w", stdout) == NULL) { | |
521 | fprintf(stderr, | |
522 | "Exiting: Failed to duplicate stdout with -n option"); | |
523 | exit(1); | |
524 | } | |
0846286b | 525 | } |
d62a17ae | 526 | |
32f3268f DL |
527 | /* SUID: go back up elevated privs */ |
528 | suid_on(); | |
529 | ||
d62a17ae | 530 | /* Make sure we pass authentication before proceeding. */ |
531 | vtysh_auth(); | |
532 | ||
533 | /* Do not connect until we have passed authentication. */ | |
534 | if (vtysh_connect_all(daemon_name) <= 0) { | |
535 | fprintf(stderr, "Exiting: failed to connect to any daemons.\n"); | |
14275475 QY |
536 | if (geteuid() != 0) |
537 | fprintf(stderr, | |
538 | "Hint: if this seems wrong, try running me as a privileged user!\n"); | |
d62a17ae | 539 | if (no_error) |
540 | exit(0); | |
541 | else | |
542 | exit(1); | |
3221dca8 | 543 | } |
cd272640 | 544 | |
32f3268f DL |
545 | /* SUID: back down, don't need privs further on */ |
546 | suid_off(); | |
547 | ||
d62a17ae | 548 | if (writeconfig) { |
f205fcdb LB |
549 | if (user_mode) { |
550 | fprintf(stderr, | |
551 | "writeconfig cannot be used when running as an unprivileged user.\n"); | |
552 | if (no_error) | |
553 | exit(0); | |
554 | else | |
555 | exit(1); | |
556 | } | |
d62a17ae | 557 | vtysh_execute("enable"); |
558 | return vtysh_write_config_integrated(); | |
7a49a5b5 | 559 | } |
d62a17ae | 560 | |
561 | if (inputfile) { | |
562 | vtysh_flock_config(inputfile); | |
563 | ret = vtysh_read_config(inputfile); | |
564 | vtysh_unflock_config(); | |
565 | exit(ret); | |
fba55c8a | 566 | } |
d62a17ae | 567 | |
568 | /* | |
569 | * Setup history file for use by both -c and regular input | |
570 | * If we can't find the home directory, then don't store | |
571 | * the history information | |
572 | */ | |
573 | homedir = vtysh_get_home(); | |
574 | if (homedir) { | |
996c9314 LB |
575 | snprintf(history_file, sizeof(history_file), "%s/.history_frr", |
576 | homedir); | |
d62a17ae | 577 | if (read_history(history_file) != 0) { |
578 | int fp; | |
579 | ||
580 | fp = open(history_file, O_CREAT | O_EXCL, | |
581 | S_IRUSR | S_IWUSR); | |
cbb65f5e | 582 | if (fp != -1) |
d62a17ae | 583 | close(fp); |
584 | ||
585 | read_history(history_file); | |
586 | } | |
587 | } | |
588 | ||
32f3268f DL |
589 | if (getenv("VTYSH_LOG")) { |
590 | const char *logpath = getenv("VTYSH_LOG"); | |
591 | ||
592 | logfile = fopen(logpath, "a"); | |
593 | if (!logfile) { | |
594 | fprintf(stderr, "Failed to open logfile (%s): %s\n", | |
595 | logpath, strerror(errno)); | |
596 | exit(1); | |
597 | } | |
598 | } | |
599 | ||
d62a17ae | 600 | /* If eval mode. */ |
47402c0f | 601 | if (cmd && cmd->line) { |
d62a17ae | 602 | /* Enter into enable node. */ |
f205fcdb LB |
603 | if (!user_mode) |
604 | vtysh_execute("enable"); | |
d62a17ae | 605 | |
606 | while (cmd != NULL) { | |
d62a17ae | 607 | char *eol; |
608 | ||
609 | while ((eol = strchr(cmd->line, '\n')) != NULL) { | |
610 | *eol = '\0'; | |
611 | ||
612 | add_history(cmd->line); | |
613 | append_history(1, history_file); | |
614 | ||
615 | if (echo_command) | |
616 | printf("%s%s\n", vtysh_prompt(), | |
617 | cmd->line); | |
618 | ||
619 | if (logfile) | |
620 | log_it(cmd->line); | |
621 | ||
622 | ret = vtysh_execute_no_pager(cmd->line); | |
623 | if (!no_error | |
624 | && !(ret == CMD_SUCCESS | |
625 | || ret == CMD_SUCCESS_DAEMON | |
626 | || ret == CMD_WARNING)) | |
627 | exit(1); | |
628 | ||
629 | cmd->line = eol + 1; | |
630 | } | |
631 | ||
632 | add_history(cmd->line); | |
633 | append_history(1, history_file); | |
634 | ||
635 | if (echo_command) | |
636 | printf("%s%s\n", vtysh_prompt(), cmd->line); | |
637 | ||
638 | if (logfile) | |
639 | log_it(cmd->line); | |
640 | ||
a4364a44 | 641 | /* |
76015847 QY |
642 | * Parsing logic for regular commands will be different |
643 | * than for those commands requiring further | |
644 | * processing, such as cli instructions terminating | |
645 | * with question-mark character. | |
a4364a44 RM |
646 | */ |
647 | if (!vtysh_execute_command_questionmark(cmd->line)) | |
648 | ret = CMD_SUCCESS; | |
649 | else | |
650 | ret = vtysh_execute_no_pager(cmd->line); | |
651 | ||
d62a17ae | 652 | if (!no_error |
653 | && !(ret == CMD_SUCCESS || ret == CMD_SUCCESS_DAEMON | |
654 | || ret == CMD_WARNING)) | |
655 | exit(1); | |
656 | ||
657 | { | |
658 | struct cmd_rec *cr; | |
659 | cr = cmd; | |
660 | cmd = cmd->next; | |
661 | XFREE(MTYPE_TMP, cr); | |
662 | } | |
663 | } | |
664 | ||
665 | history_truncate_file(history_file, 1000); | |
666 | exit(0); | |
667 | } | |
668 | ||
669 | /* Boot startup configuration file. */ | |
670 | if (boot_flag) { | |
9b8a8249 | 671 | vtysh_flock_config(frr_config); |
c683bd44 | 672 | ret = vtysh_read_config(frr_config); |
d62a17ae | 673 | vtysh_unflock_config(); |
674 | if (ret) { | |
675 | fprintf(stderr, | |
676 | "Configuration file[%s] processing failure: %d\n", | |
9b8a8249 | 677 | frr_config, ret); |
d62a17ae | 678 | if (no_error) |
679 | exit(0); | |
680 | else | |
681 | exit(ret); | |
682 | } else | |
683 | exit(0); | |
e7168df4 | 684 | } |
718e3744 | 685 | |
d62a17ae | 686 | vtysh_readline_init(); |
718e3744 | 687 | |
d62a17ae | 688 | vty_hello(vty); |
718e3744 | 689 | |
d62a17ae | 690 | /* Enter into enable node. */ |
f205fcdb LB |
691 | if (!user_mode) |
692 | vtysh_execute("enable"); | |
e7168df4 | 693 | |
d62a17ae | 694 | /* Preparation for longjmp() in sigtstp(). */ |
695 | sigsetjmp(jmpbuf, 1); | |
696 | jmpflag = 1; | |
718e3744 | 697 | |
d62a17ae | 698 | /* Main command loop. */ |
699 | while (vtysh_rl_gets()) | |
700 | vtysh_execute(line_read); | |
718e3744 | 701 | |
193a5a95 QY |
702 | vtysh_uninit(); |
703 | ||
d62a17ae | 704 | history_truncate_file(history_file, 1000); |
705 | printf("\n"); | |
718e3744 | 706 | |
d62a17ae | 707 | /* Rest in peace. */ |
708 | exit(0); | |
718e3744 | 709 | } |