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Commit | Line | Data |
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718e3744 | 1 | /* |
2 | * Virtual terminal [aka TeletYpe] interface routine. | |
3 | * Copyright (C) 1997, 98 Kunihiro Ishiguro | |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with GNU Zebra; see the file COPYING. If not, write to the Free | |
19 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
d0bfb22c | 20 | * 02111-1307, USA. |
718e3744 | 21 | */ |
22 | ||
23 | #include <zebra.h> | |
24 | ||
25 | #include "linklist.h" | |
b21b19c5 | 26 | #include "thread.h" |
718e3744 | 27 | #include "buffer.h" |
5e4fa164 | 28 | #include <lib/version.h> |
718e3744 | 29 | #include "command.h" |
30 | #include "sockunion.h" | |
718e3744 | 31 | #include "memory.h" |
718e3744 | 32 | #include "log.h" |
33 | #include "prefix.h" | |
34 | #include "filter.h" | |
b21b19c5 | 35 | #include "vty.h" |
edd7c245 | 36 | #include "privs.h" |
9fc7ebf1 | 37 | #include "network.h" |
38 | ||
39 | #include <arpa/telnet.h> | |
b510a06e | 40 | #include <termios.h> |
718e3744 | 41 | |
4a1ab8e4 DL |
42 | DEFINE_MTYPE_STATIC(LIB, VTY, "VTY") |
43 | DEFINE_MTYPE_STATIC(LIB, VTY_OUT_BUF, "VTY output buffer") | |
44 | DEFINE_MTYPE_STATIC(LIB, VTY_HIST, "VTY history") | |
45 | ||
718e3744 | 46 | /* Vty events */ |
d0bfb22c | 47 | enum event |
718e3744 | 48 | { |
49 | VTY_SERV, | |
50 | VTY_READ, | |
51 | VTY_WRITE, | |
52 | VTY_TIMEOUT_RESET, | |
53 | #ifdef VTYSH | |
54 | VTYSH_SERV, | |
49ff6d9d | 55 | VTYSH_READ, |
56 | VTYSH_WRITE | |
718e3744 | 57 | #endif /* VTYSH */ |
58 | }; | |
59 | ||
60 | static void vty_event (enum event, int, struct vty *); | |
61 | ||
62 | /* Extern host structure from command.c */ | |
63 | extern struct host host; | |
6b0655a2 | 64 | |
718e3744 | 65 | /* Vector which store each vty structure. */ |
66 | static vector vtyvec; | |
67 | ||
68 | /* Vty timeout value. */ | |
69 | static unsigned long vty_timeout_val = VTY_TIMEOUT_DEFAULT; | |
70 | ||
71 | /* Vty access-class command */ | |
72 | static char *vty_accesslist_name = NULL; | |
73 | ||
74 | /* Vty access-calss for IPv6. */ | |
75 | static char *vty_ipv6_accesslist_name = NULL; | |
76 | ||
77 | /* VTY server thread. */ | |
677bcbbf | 78 | static vector Vvty_serv_thread; |
718e3744 | 79 | |
80 | /* Current directory. */ | |
81 | char *vty_cwd = NULL; | |
82 | ||
83 | /* Configure lock. */ | |
84 | static int vty_config; | |
cc933ef9 | 85 | static int vty_config_is_lockless = 0; |
718e3744 | 86 | |
87 | /* Login password check. */ | |
88 | static int no_password_check = 0; | |
89 | ||
90 | /* Integrated configuration file path */ | |
91 | char integrate_default[] = SYSCONFDIR INTEGRATE_DEFAULT_CONFIG; | |
92 | ||
da688ecd | 93 | static int do_log_commands = 0; |
6b0655a2 | 94 | |
718e3744 | 95 | /* VTY standard output function. */ |
96 | int | |
97 | vty_out (struct vty *vty, const char *format, ...) | |
98 | { | |
99 | va_list args; | |
100 | int len = 0; | |
101 | int size = 1024; | |
102 | char buf[1024]; | |
103 | char *p = NULL; | |
718e3744 | 104 | |
105 | if (vty_shell (vty)) | |
d246bd96 | 106 | { |
107 | va_start (args, format); | |
108 | vprintf (format, args); | |
109 | va_end (args); | |
110 | } | |
718e3744 | 111 | else |
112 | { | |
113 | /* Try to write to initial buffer. */ | |
d246bd96 | 114 | va_start (args, format); |
1035065f | 115 | len = vsnprintf (buf, sizeof(buf), format, args); |
d246bd96 | 116 | va_end (args); |
718e3744 | 117 | |
118 | /* Initial buffer is not enough. */ | |
119 | if (len < 0 || len >= size) | |
d0bfb22c QY |
120 | { |
121 | while (1) | |
122 | { | |
123 | if (len > -1) | |
124 | size = len + 1; | |
125 | else | |
126 | size = size * 2; | |
127 | ||
128 | p = XREALLOC (MTYPE_VTY_OUT_BUF, p, size); | |
129 | if (! p) | |
130 | return -1; | |
131 | ||
132 | va_start (args, format); | |
133 | len = vsnprintf (p, size, format, args); | |
134 | va_end (args); | |
135 | ||
136 | if (len > -1 && len < size) | |
137 | break; | |
138 | } | |
139 | } | |
718e3744 | 140 | |
141 | /* When initial buffer is enough to store all output. */ | |
142 | if (! p) | |
d0bfb22c | 143 | p = buf; |
718e3744 | 144 | |
145 | /* Pointer p must point out buffer. */ | |
9fc7ebf1 | 146 | buffer_put (vty->obuf, (u_char *) p, len); |
718e3744 | 147 | |
148 | /* If p is not different with buf, it is allocated buffer. */ | |
149 | if (p != buf) | |
d0bfb22c | 150 | XFREE (MTYPE_VTY_OUT_BUF, p); |
718e3744 | 151 | } |
152 | ||
718e3744 | 153 | return len; |
154 | } | |
155 | ||
d246bd96 | 156 | static int |
274a4a44 | 157 | vty_log_out (struct vty *vty, const char *level, const char *proto_str, |
d0bfb22c | 158 | const char *format, struct timestamp_control *ctl, va_list va) |
718e3744 | 159 | { |
9fc7ebf1 | 160 | int ret; |
718e3744 | 161 | int len; |
162 | char buf[1024]; | |
08942da5 | 163 | |
1ed72e0b AS |
164 | if (!ctl->already_rendered) |
165 | { | |
166 | ctl->len = quagga_timestamp(ctl->precision, ctl->buf, sizeof(ctl->buf)); | |
167 | ctl->already_rendered = 1; | |
168 | } | |
169 | if (ctl->len+1 >= sizeof(buf)) | |
170 | return -1; | |
171 | memcpy(buf, ctl->buf, len = ctl->len); | |
172 | buf[len++] = ' '; | |
173 | buf[len] = '\0'; | |
718e3744 | 174 | |
274a4a44 | 175 | if (level) |
08942da5 | 176 | ret = snprintf(buf+len, sizeof(buf)-len, "%s: %s: ", level, proto_str); |
274a4a44 | 177 | else |
08942da5 AS |
178 | ret = snprintf(buf+len, sizeof(buf)-len, "%s: ", proto_str); |
179 | if ((ret < 0) || ((size_t)(len += ret) >= sizeof(buf))) | |
9fc7ebf1 | 180 | return -1; |
718e3744 | 181 | |
9fc7ebf1 | 182 | if (((ret = vsnprintf(buf+len, sizeof(buf)-len, format, va)) < 0) || |
183 | ((size_t)((len += ret)+2) > sizeof(buf))) | |
718e3744 | 184 | return -1; |
718e3744 | 185 | |
9fc7ebf1 | 186 | buf[len++] = '\r'; |
187 | buf[len++] = '\n'; | |
718e3744 | 188 | |
c5e69a02 | 189 | if (write(vty->wfd, buf, len) < 0) |
9fc7ebf1 | 190 | { |
191 | if (ERRNO_IO_RETRY(errno)) | |
d0bfb22c QY |
192 | /* Kernel buffer is full, probably too much debugging output, so just |
193 | drop the data and ignore. */ | |
194 | return -1; | |
9fc7ebf1 | 195 | /* Fatal I/O error. */ |
74542d73 | 196 | vty->monitor = 0; /* disable monitoring to avoid infinite recursion */ |
9fc7ebf1 | 197 | zlog_warn("%s: write failed to vty client fd %d, closing: %s", |
d0bfb22c | 198 | __func__, vty->fd, safe_strerror(errno)); |
9fc7ebf1 | 199 | buffer_reset(vty->obuf); |
9d0a3260 AS |
200 | /* cannot call vty_close, because a parent routine may still try |
201 | to access the vty struct */ | |
202 | vty->status = VTY_CLOSE; | |
203 | shutdown(vty->fd, SHUT_RDWR); | |
9fc7ebf1 | 204 | return -1; |
205 | } | |
206 | return 0; | |
718e3744 | 207 | } |
208 | ||
209 | /* Output current time to the vty. */ | |
210 | void | |
211 | vty_time_print (struct vty *vty, int cr) | |
212 | { | |
ae616d60 | 213 | char buf[QUAGGA_TIMESTAMP_LEN]; |
d0bfb22c | 214 | |
1ed72e0b | 215 | if (quagga_timestamp(0, buf, sizeof(buf)) == 0) |
718e3744 | 216 | { |
1ed72e0b | 217 | zlog (NULL, LOG_INFO, "quagga_timestamp error"); |
718e3744 | 218 | return; |
219 | } | |
220 | if (cr) | |
221 | vty_out (vty, "%s\n", buf); | |
222 | else | |
223 | vty_out (vty, "%s ", buf); | |
224 | ||
225 | return; | |
226 | } | |
227 | ||
228 | /* Say hello to vty interface. */ | |
229 | void | |
230 | vty_hello (struct vty *vty) | |
231 | { | |
3b0c5d9a | 232 | if (host.motdfile) |
233 | { | |
234 | FILE *f; | |
235 | char buf[4096]; | |
22085181 | 236 | |
3b0c5d9a | 237 | f = fopen (host.motdfile, "r"); |
238 | if (f) | |
d0bfb22c QY |
239 | { |
240 | while (fgets (buf, sizeof (buf), f)) | |
241 | { | |
242 | char *s; | |
243 | /* work backwards to ignore trailling isspace() */ | |
244 | for (s = buf + strlen (buf); (s > buf) && isspace ((int)*(s - 1)); | |
245 | s--); | |
246 | *s = '\0'; | |
247 | vty_out (vty, "%s%s", buf, VTY_NEWLINE); | |
248 | } | |
249 | fclose (f); | |
250 | } | |
3b0c5d9a | 251 | else |
d0bfb22c | 252 | vty_out (vty, "MOTD file not found%s", VTY_NEWLINE); |
3b0c5d9a | 253 | } |
254 | else if (host.motd) | |
b830c89a | 255 | vty_out (vty, "%s", host.motd); |
718e3744 | 256 | } |
257 | ||
258 | /* Put out prompt and wait input from user. */ | |
259 | static void | |
260 | vty_prompt (struct vty *vty) | |
261 | { | |
262 | struct utsname names; | |
263 | const char*hostname; | |
264 | ||
265 | if (vty->type == VTY_TERM) | |
266 | { | |
267 | hostname = host.name; | |
268 | if (!hostname) | |
d0bfb22c QY |
269 | { |
270 | uname (&names); | |
271 | hostname = names.nodename; | |
272 | } | |
718e3744 | 273 | vty_out (vty, cmd_prompt (vty->node), hostname); |
274 | } | |
275 | } | |
276 | ||
277 | /* Send WILL TELOPT_ECHO to remote server. */ | |
9fc7ebf1 | 278 | static void |
718e3744 | 279 | vty_will_echo (struct vty *vty) |
280 | { | |
02ff83c5 | 281 | unsigned char cmd[] = { IAC, WILL, TELOPT_ECHO, '\0' }; |
718e3744 | 282 | vty_out (vty, "%s", cmd); |
283 | } | |
284 | ||
285 | /* Make suppress Go-Ahead telnet option. */ | |
286 | static void | |
287 | vty_will_suppress_go_ahead (struct vty *vty) | |
288 | { | |
02ff83c5 | 289 | unsigned char cmd[] = { IAC, WILL, TELOPT_SGA, '\0' }; |
718e3744 | 290 | vty_out (vty, "%s", cmd); |
291 | } | |
292 | ||
293 | /* Make don't use linemode over telnet. */ | |
294 | static void | |
295 | vty_dont_linemode (struct vty *vty) | |
296 | { | |
02ff83c5 | 297 | unsigned char cmd[] = { IAC, DONT, TELOPT_LINEMODE, '\0' }; |
718e3744 | 298 | vty_out (vty, "%s", cmd); |
299 | } | |
300 | ||
301 | /* Use window size. */ | |
302 | static void | |
303 | vty_do_window_size (struct vty *vty) | |
304 | { | |
02ff83c5 | 305 | unsigned char cmd[] = { IAC, DO, TELOPT_NAWS, '\0' }; |
718e3744 | 306 | vty_out (vty, "%s", cmd); |
307 | } | |
308 | ||
309 | #if 0 /* Currently not used. */ | |
310 | /* Make don't use lflow vty interface. */ | |
311 | static void | |
312 | vty_dont_lflow_ahead (struct vty *vty) | |
313 | { | |
02ff83c5 | 314 | unsigned char cmd[] = { IAC, DONT, TELOPT_LFLOW, '\0' }; |
718e3744 | 315 | vty_out (vty, "%s", cmd); |
316 | } | |
317 | #endif /* 0 */ | |
318 | ||
319 | /* Allocate new vty struct. */ | |
320 | struct vty * | |
321 | vty_new () | |
322 | { | |
323 | struct vty *new = XCALLOC (MTYPE_VTY, sizeof (struct vty)); | |
324 | ||
d0bfb22c | 325 | new->obuf = buffer_new(0); /* Use default buffer size. */ |
718e3744 | 326 | new->buf = XCALLOC (MTYPE_VTY, VTY_BUFSIZ); |
5689fe5f | 327 | new->error_buf = XCALLOC (MTYPE_VTY, VTY_BUFSIZ); |
718e3744 | 328 | new->max = VTY_BUFSIZ; |
718e3744 | 329 | |
330 | return new; | |
331 | } | |
332 | ||
333 | /* Authentication of vty */ | |
334 | static void | |
335 | vty_auth (struct vty *vty, char *buf) | |
336 | { | |
337 | char *passwd = NULL; | |
338 | enum node_type next_node = 0; | |
339 | int fail; | |
340 | char *crypt (const char *, const char *); | |
341 | ||
342 | switch (vty->node) | |
343 | { | |
344 | case AUTH_NODE: | |
345 | if (host.encrypt) | |
d0bfb22c | 346 | passwd = host.password_encrypt; |
718e3744 | 347 | else |
d0bfb22c | 348 | passwd = host.password; |
718e3744 | 349 | if (host.advanced) |
d0bfb22c | 350 | next_node = host.enable ? VIEW_NODE : ENABLE_NODE; |
718e3744 | 351 | else |
d0bfb22c | 352 | next_node = VIEW_NODE; |
718e3744 | 353 | break; |
354 | case AUTH_ENABLE_NODE: | |
355 | if (host.encrypt) | |
d0bfb22c | 356 | passwd = host.enable_encrypt; |
718e3744 | 357 | else |
d0bfb22c | 358 | passwd = host.enable; |
718e3744 | 359 | next_node = ENABLE_NODE; |
360 | break; | |
361 | } | |
362 | ||
363 | if (passwd) | |
364 | { | |
365 | if (host.encrypt) | |
d0bfb22c | 366 | fail = strcmp (crypt(buf, passwd), passwd); |
718e3744 | 367 | else |
d0bfb22c | 368 | fail = strcmp (buf, passwd); |
718e3744 | 369 | } |
370 | else | |
371 | fail = 1; | |
372 | ||
373 | if (! fail) | |
374 | { | |
375 | vty->fail = 0; | |
d0bfb22c | 376 | vty->node = next_node; /* Success ! */ |
718e3744 | 377 | } |
378 | else | |
379 | { | |
380 | vty->fail++; | |
381 | if (vty->fail >= 3) | |
d0bfb22c QY |
382 | { |
383 | if (vty->node == AUTH_NODE) | |
384 | { | |
385 | vty_out (vty, "%% Bad passwords, too many failures!%s", VTY_NEWLINE); | |
386 | vty->status = VTY_CLOSE; | |
387 | } | |
388 | else | |
389 | { | |
390 | /* AUTH_ENABLE_NODE */ | |
391 | vty->fail = 0; | |
392 | vty_out (vty, "%% Bad enable passwords, too many failures!%s", VTY_NEWLINE); | |
3c8ab49f | 393 | vty->status = VTY_CLOSE; |
d0bfb22c QY |
394 | } |
395 | } | |
718e3744 | 396 | } |
397 | } | |
398 | ||
399 | /* Command execution over the vty interface. */ | |
9fc7ebf1 | 400 | static int |
718e3744 | 401 | vty_command (struct vty *vty, char *buf) |
402 | { | |
403 | int ret; | |
404 | vector vline; | |
fbf5d033 | 405 | const char *protocolname; |
da688ecd | 406 | char *cp = NULL; |
718e3744 | 407 | |
1035065f LB |
408 | /* |
409 | * Log non empty command lines | |
410 | */ | |
da688ecd LB |
411 | if (do_log_commands) |
412 | cp = buf; | |
1035065f LB |
413 | if (cp != NULL) |
414 | { | |
415 | /* Skip white spaces. */ | |
416 | while (isspace ((int) *cp) && *cp != '\0') | |
417 | cp++; | |
418 | } | |
419 | if (cp != NULL && *cp != '\0') | |
420 | { | |
421 | unsigned i; | |
d0bfb22c | 422 | char vty_str[VTY_BUFSIZ]; |
1035065f LB |
423 | char prompt_str[VTY_BUFSIZ]; |
424 | ||
425 | /* format the base vty info */ | |
426 | snprintf(vty_str, sizeof(vty_str), "vty[??]@%s", vty->address); | |
427 | if (vty) | |
428 | for (i = 0; i < vector_active (vtyvec); i++) | |
429 | if (vty == vector_slot (vtyvec, i)) | |
430 | { | |
431 | snprintf(vty_str, sizeof(vty_str), "vty[%d]@%s", | |
432 | i, vty->address); | |
433 | break; | |
434 | } | |
435 | ||
436 | /* format the prompt */ | |
437 | snprintf(prompt_str, sizeof(prompt_str), cmd_prompt (vty->node), vty_str); | |
438 | ||
439 | /* now log the command */ | |
da688ecd | 440 | zlog(NULL, LOG_ERR, "%s%s", prompt_str, buf); |
1035065f | 441 | } |
718e3744 | 442 | /* Split readline string up into the vector */ |
443 | vline = cmd_make_strvec (buf); | |
444 | ||
445 | if (vline == NULL) | |
446 | return CMD_SUCCESS; | |
447 | ||
924b9229 | 448 | #ifdef CONSUMED_TIME_CHECK |
449 | { | |
450 | RUSAGE_T before; | |
451 | RUSAGE_T after; | |
8b70d0b0 | 452 | unsigned long realtime, cputime; |
924b9229 | 453 | |
454 | GETRUSAGE(&before); | |
455 | #endif /* CONSUMED_TIME_CHECK */ | |
456 | ||
87d683b0 | 457 | ret = cmd_execute_command (vline, vty, NULL, 0); |
718e3744 | 458 | |
fbf5d033 | 459 | /* Get the name of the protocol if any */ |
460 | if (zlog_default) | |
461 | protocolname = zlog_proto_names[zlog_default->protocol]; | |
462 | else | |
463 | protocolname = zlog_proto_names[ZLOG_NONE]; | |
d0bfb22c | 464 | |
924b9229 | 465 | #ifdef CONSUMED_TIME_CHECK |
466 | GETRUSAGE(&after); | |
8b70d0b0 | 467 | if ((realtime = thread_consumed_time(&after, &before, &cputime)) > |
d0bfb22c | 468 | CONSUMED_TIME_CHECK) |
924b9229 | 469 | /* Warn about CPU hog that must be fixed. */ |
8b70d0b0 | 470 | zlog_warn("SLOW COMMAND: command took %lums (cpu time %lums): %s", |
d0bfb22c | 471 | realtime/1000, cputime/1000, buf); |
924b9229 | 472 | } |
473 | #endif /* CONSUMED_TIME_CHECK */ | |
474 | ||
718e3744 | 475 | if (ret != CMD_SUCCESS) |
476 | switch (ret) | |
477 | { | |
478 | case CMD_WARNING: | |
d0bfb22c QY |
479 | if (vty->type == VTY_FILE) |
480 | vty_out (vty, "Warning...%s", VTY_NEWLINE); | |
481 | break; | |
718e3744 | 482 | case CMD_ERR_AMBIGUOUS: |
d0bfb22c QY |
483 | vty_out (vty, "%% Ambiguous command.%s", VTY_NEWLINE); |
484 | break; | |
718e3744 | 485 | case CMD_ERR_NO_MATCH: |
d0bfb22c QY |
486 | vty_out (vty, "%% [%s] Unknown command: %s%s", protocolname, buf, VTY_NEWLINE); |
487 | break; | |
718e3744 | 488 | case CMD_ERR_INCOMPLETE: |
d0bfb22c QY |
489 | vty_out (vty, "%% Command incomplete.%s", VTY_NEWLINE); |
490 | break; | |
718e3744 | 491 | } |
492 | cmd_free_strvec (vline); | |
493 | ||
494 | return ret; | |
495 | } | |
6b0655a2 | 496 | |
9fc7ebf1 | 497 | static const char telnet_backward_char = 0x08; |
498 | static const char telnet_space_char = ' '; | |
718e3744 | 499 | |
500 | /* Basic function to write buffer to vty. */ | |
501 | static void | |
9fc7ebf1 | 502 | vty_write (struct vty *vty, const char *buf, size_t nbytes) |
718e3744 | 503 | { |
504 | if ((vty->node == AUTH_NODE) || (vty->node == AUTH_ENABLE_NODE)) | |
505 | return; | |
506 | ||
507 | /* Should we do buffering here ? And make vty_flush (vty) ? */ | |
9fc7ebf1 | 508 | buffer_put (vty->obuf, buf, nbytes); |
718e3744 | 509 | } |
510 | ||
511 | /* Ensure length of input buffer. Is buffer is short, double it. */ | |
512 | static void | |
513 | vty_ensure (struct vty *vty, int length) | |
514 | { | |
515 | if (vty->max <= length) | |
516 | { | |
517 | vty->max *= 2; | |
518 | vty->buf = XREALLOC (MTYPE_VTY, vty->buf, vty->max); | |
5689fe5f | 519 | vty->error_buf = XREALLOC (MTYPE_VTY, vty->error_buf, vty->max); |
718e3744 | 520 | } |
521 | } | |
522 | ||
523 | /* Basic function to insert character into vty. */ | |
524 | static void | |
525 | vty_self_insert (struct vty *vty, char c) | |
526 | { | |
527 | int i; | |
528 | int length; | |
529 | ||
530 | vty_ensure (vty, vty->length + 1); | |
531 | length = vty->length - vty->cp; | |
532 | memmove (&vty->buf[vty->cp + 1], &vty->buf[vty->cp], length); | |
533 | vty->buf[vty->cp] = c; | |
534 | ||
535 | vty_write (vty, &vty->buf[vty->cp], length + 1); | |
536 | for (i = 0; i < length; i++) | |
537 | vty_write (vty, &telnet_backward_char, 1); | |
538 | ||
539 | vty->cp++; | |
540 | vty->length++; | |
541 | } | |
542 | ||
543 | /* Self insert character 'c' in overwrite mode. */ | |
544 | static void | |
545 | vty_self_insert_overwrite (struct vty *vty, char c) | |
546 | { | |
547 | vty_ensure (vty, vty->length + 1); | |
548 | vty->buf[vty->cp++] = c; | |
549 | ||
550 | if (vty->cp > vty->length) | |
551 | vty->length++; | |
552 | ||
553 | if ((vty->node == AUTH_NODE) || (vty->node == AUTH_ENABLE_NODE)) | |
554 | return; | |
555 | ||
556 | vty_write (vty, &c, 1); | |
557 | } | |
558 | ||
559 | /* Insert a word into vty interface with overwrite mode. */ | |
560 | static void | |
561 | vty_insert_word_overwrite (struct vty *vty, char *str) | |
562 | { | |
563 | int len = strlen (str); | |
564 | vty_write (vty, str, len); | |
565 | strcpy (&vty->buf[vty->cp], str); | |
566 | vty->cp += len; | |
567 | vty->length = vty->cp; | |
568 | } | |
569 | ||
570 | /* Forward character. */ | |
571 | static void | |
572 | vty_forward_char (struct vty *vty) | |
573 | { | |
574 | if (vty->cp < vty->length) | |
575 | { | |
576 | vty_write (vty, &vty->buf[vty->cp], 1); | |
577 | vty->cp++; | |
578 | } | |
579 | } | |
580 | ||
581 | /* Backward character. */ | |
582 | static void | |
583 | vty_backward_char (struct vty *vty) | |
584 | { | |
585 | if (vty->cp > 0) | |
586 | { | |
587 | vty->cp--; | |
588 | vty_write (vty, &telnet_backward_char, 1); | |
589 | } | |
590 | } | |
591 | ||
592 | /* Move to the beginning of the line. */ | |
593 | static void | |
594 | vty_beginning_of_line (struct vty *vty) | |
595 | { | |
596 | while (vty->cp) | |
597 | vty_backward_char (vty); | |
598 | } | |
599 | ||
600 | /* Move to the end of the line. */ | |
601 | static void | |
602 | vty_end_of_line (struct vty *vty) | |
603 | { | |
604 | while (vty->cp < vty->length) | |
605 | vty_forward_char (vty); | |
606 | } | |
607 | ||
608 | static void vty_kill_line_from_beginning (struct vty *); | |
609 | static void vty_redraw_line (struct vty *); | |
610 | ||
611 | /* Print command line history. This function is called from | |
612 | vty_next_line and vty_previous_line. */ | |
613 | static void | |
614 | vty_history_print (struct vty *vty) | |
615 | { | |
616 | int length; | |
617 | ||
618 | vty_kill_line_from_beginning (vty); | |
619 | ||
620 | /* Get previous line from history buffer */ | |
621 | length = strlen (vty->hist[vty->hp]); | |
622 | memcpy (vty->buf, vty->hist[vty->hp], length); | |
623 | vty->cp = vty->length = length; | |
624 | ||
625 | /* Redraw current line */ | |
626 | vty_redraw_line (vty); | |
627 | } | |
628 | ||
629 | /* Show next command line history. */ | |
9fc7ebf1 | 630 | static void |
718e3744 | 631 | vty_next_line (struct vty *vty) |
632 | { | |
633 | int try_index; | |
634 | ||
635 | if (vty->hp == vty->hindex) | |
636 | return; | |
637 | ||
638 | /* Try is there history exist or not. */ | |
639 | try_index = vty->hp; | |
640 | if (try_index == (VTY_MAXHIST - 1)) | |
641 | try_index = 0; | |
642 | else | |
643 | try_index++; | |
644 | ||
645 | /* If there is not history return. */ | |
646 | if (vty->hist[try_index] == NULL) | |
647 | return; | |
648 | else | |
649 | vty->hp = try_index; | |
650 | ||
651 | vty_history_print (vty); | |
652 | } | |
653 | ||
654 | /* Show previous command line history. */ | |
9fc7ebf1 | 655 | static void |
718e3744 | 656 | vty_previous_line (struct vty *vty) |
657 | { | |
658 | int try_index; | |
659 | ||
660 | try_index = vty->hp; | |
661 | if (try_index == 0) | |
662 | try_index = VTY_MAXHIST - 1; | |
663 | else | |
664 | try_index--; | |
665 | ||
666 | if (vty->hist[try_index] == NULL) | |
667 | return; | |
668 | else | |
669 | vty->hp = try_index; | |
670 | ||
671 | vty_history_print (vty); | |
672 | } | |
673 | ||
674 | /* This function redraw all of the command line character. */ | |
675 | static void | |
676 | vty_redraw_line (struct vty *vty) | |
677 | { | |
678 | vty_write (vty, vty->buf, vty->length); | |
679 | vty->cp = vty->length; | |
680 | } | |
681 | ||
682 | /* Forward word. */ | |
683 | static void | |
684 | vty_forward_word (struct vty *vty) | |
685 | { | |
686 | while (vty->cp != vty->length && vty->buf[vty->cp] != ' ') | |
687 | vty_forward_char (vty); | |
d0bfb22c | 688 | |
718e3744 | 689 | while (vty->cp != vty->length && vty->buf[vty->cp] == ' ') |
690 | vty_forward_char (vty); | |
691 | } | |
692 | ||
693 | /* Backward word without skipping training space. */ | |
694 | static void | |
695 | vty_backward_pure_word (struct vty *vty) | |
696 | { | |
697 | while (vty->cp > 0 && vty->buf[vty->cp - 1] != ' ') | |
698 | vty_backward_char (vty); | |
699 | } | |
700 | ||
701 | /* Backward word. */ | |
702 | static void | |
703 | vty_backward_word (struct vty *vty) | |
704 | { | |
705 | while (vty->cp > 0 && vty->buf[vty->cp - 1] == ' ') | |
706 | vty_backward_char (vty); | |
707 | ||
708 | while (vty->cp > 0 && vty->buf[vty->cp - 1] != ' ') | |
709 | vty_backward_char (vty); | |
710 | } | |
711 | ||
712 | /* When '^D' is typed at the beginning of the line we move to the down | |
713 | level. */ | |
714 | static void | |
715 | vty_down_level (struct vty *vty) | |
716 | { | |
717 | vty_out (vty, "%s", VTY_NEWLINE); | |
0b84f294 | 718 | cmd_exit (vty); |
718e3744 | 719 | vty_prompt (vty); |
720 | vty->cp = 0; | |
721 | } | |
722 | ||
723 | /* When '^Z' is received from vty, move down to the enable mode. */ | |
9fc7ebf1 | 724 | static void |
718e3744 | 725 | vty_end_config (struct vty *vty) |
726 | { | |
727 | vty_out (vty, "%s", VTY_NEWLINE); | |
728 | ||
729 | switch (vty->node) | |
730 | { | |
731 | case VIEW_NODE: | |
732 | case ENABLE_NODE: | |
733 | /* Nothing to do. */ | |
734 | break; | |
735 | case CONFIG_NODE: | |
736 | case INTERFACE_NODE: | |
737 | case ZEBRA_NODE: | |
738 | case RIP_NODE: | |
739 | case RIPNG_NODE: | |
740 | case BGP_NODE: | |
741 | case BGP_VPNV4_NODE: | |
8ecd3266 | 742 | case BGP_VPNV6_NODE: |
8b1fb8be LB |
743 | case BGP_ENCAP_NODE: |
744 | case BGP_ENCAPV6_NODE: | |
65efcfce LB |
745 | case BGP_VNC_DEFAULTS_NODE: |
746 | case BGP_VNC_NVE_GROUP_NODE: | |
747 | case BGP_VNC_L2_GROUP_NODE: | |
718e3744 | 748 | case BGP_IPV4_NODE: |
749 | case BGP_IPV4M_NODE: | |
750 | case BGP_IPV6_NODE: | |
1e836590 | 751 | case BGP_IPV6M_NODE: |
718e3744 | 752 | case RMAP_NODE: |
753 | case OSPF_NODE: | |
754 | case OSPF6_NODE: | |
eac6e3f0 RW |
755 | case LDP_NODE: |
756 | case LDP_IPV4_NODE: | |
757 | case LDP_IPV6_NODE: | |
758 | case LDP_IPV4_IFACE_NODE: | |
759 | case LDP_IPV6_IFACE_NODE: | |
760 | case LDP_L2VPN_NODE: | |
761 | case LDP_PSEUDOWIRE_NODE: | |
9e867fe6 | 762 | case ISIS_NODE: |
718e3744 | 763 | case KEYCHAIN_NODE: |
764 | case KEYCHAIN_KEY_NODE: | |
765 | case MASC_NODE: | |
12e41d03 | 766 | case PIM_NODE: |
718e3744 | 767 | case VTY_NODE: |
768 | vty_config_unlock (vty); | |
769 | vty->node = ENABLE_NODE; | |
770 | break; | |
771 | default: | |
772 | /* Unknown node, we have to ignore it. */ | |
773 | break; | |
774 | } | |
775 | ||
776 | vty_prompt (vty); | |
777 | vty->cp = 0; | |
778 | } | |
779 | ||
780 | /* Delete a charcter at the current point. */ | |
781 | static void | |
782 | vty_delete_char (struct vty *vty) | |
783 | { | |
784 | int i; | |
785 | int size; | |
786 | ||
718e3744 | 787 | if (vty->length == 0) |
788 | { | |
789 | vty_down_level (vty); | |
790 | return; | |
791 | } | |
792 | ||
793 | if (vty->cp == vty->length) | |
d0bfb22c | 794 | return; /* completion need here? */ |
718e3744 | 795 | |
796 | size = vty->length - vty->cp; | |
797 | ||
798 | vty->length--; | |
799 | memmove (&vty->buf[vty->cp], &vty->buf[vty->cp + 1], size - 1); | |
800 | vty->buf[vty->length] = '\0'; | |
d0bfb22c | 801 | |
7f794f2b R |
802 | if (vty->node == AUTH_NODE || vty->node == AUTH_ENABLE_NODE) |
803 | return; | |
718e3744 | 804 | |
805 | vty_write (vty, &vty->buf[vty->cp], size - 1); | |
806 | vty_write (vty, &telnet_space_char, 1); | |
807 | ||
808 | for (i = 0; i < size; i++) | |
809 | vty_write (vty, &telnet_backward_char, 1); | |
810 | } | |
811 | ||
812 | /* Delete a character before the point. */ | |
813 | static void | |
814 | vty_delete_backward_char (struct vty *vty) | |
815 | { | |
816 | if (vty->cp == 0) | |
817 | return; | |
818 | ||
819 | vty_backward_char (vty); | |
820 | vty_delete_char (vty); | |
821 | } | |
822 | ||
823 | /* Kill rest of line from current point. */ | |
824 | static void | |
825 | vty_kill_line (struct vty *vty) | |
826 | { | |
827 | int i; | |
828 | int size; | |
829 | ||
830 | size = vty->length - vty->cp; | |
d0bfb22c | 831 | |
718e3744 | 832 | if (size == 0) |
833 | return; | |
834 | ||
835 | for (i = 0; i < size; i++) | |
836 | vty_write (vty, &telnet_space_char, 1); | |
837 | for (i = 0; i < size; i++) | |
838 | vty_write (vty, &telnet_backward_char, 1); | |
839 | ||
840 | memset (&vty->buf[vty->cp], 0, size); | |
841 | vty->length = vty->cp; | |
842 | } | |
843 | ||
844 | /* Kill line from the beginning. */ | |
845 | static void | |
846 | vty_kill_line_from_beginning (struct vty *vty) | |
847 | { | |
848 | vty_beginning_of_line (vty); | |
849 | vty_kill_line (vty); | |
850 | } | |
851 | ||
852 | /* Delete a word before the point. */ | |
853 | static void | |
854 | vty_forward_kill_word (struct vty *vty) | |
855 | { | |
856 | while (vty->cp != vty->length && vty->buf[vty->cp] == ' ') | |
857 | vty_delete_char (vty); | |
858 | while (vty->cp != vty->length && vty->buf[vty->cp] != ' ') | |
859 | vty_delete_char (vty); | |
860 | } | |
861 | ||
862 | /* Delete a word before the point. */ | |
863 | static void | |
864 | vty_backward_kill_word (struct vty *vty) | |
865 | { | |
866 | while (vty->cp > 0 && vty->buf[vty->cp - 1] == ' ') | |
867 | vty_delete_backward_char (vty); | |
868 | while (vty->cp > 0 && vty->buf[vty->cp - 1] != ' ') | |
869 | vty_delete_backward_char (vty); | |
870 | } | |
871 | ||
872 | /* Transpose chars before or at the point. */ | |
873 | static void | |
874 | vty_transpose_chars (struct vty *vty) | |
875 | { | |
876 | char c1, c2; | |
877 | ||
878 | /* If length is short or point is near by the beginning of line then | |
879 | return. */ | |
880 | if (vty->length < 2 || vty->cp < 1) | |
881 | return; | |
882 | ||
883 | /* In case of point is located at the end of the line. */ | |
884 | if (vty->cp == vty->length) | |
885 | { | |
886 | c1 = vty->buf[vty->cp - 1]; | |
887 | c2 = vty->buf[vty->cp - 2]; | |
888 | ||
889 | vty_backward_char (vty); | |
890 | vty_backward_char (vty); | |
891 | vty_self_insert_overwrite (vty, c1); | |
892 | vty_self_insert_overwrite (vty, c2); | |
893 | } | |
894 | else | |
895 | { | |
896 | c1 = vty->buf[vty->cp]; | |
897 | c2 = vty->buf[vty->cp - 1]; | |
898 | ||
899 | vty_backward_char (vty); | |
900 | vty_self_insert_overwrite (vty, c1); | |
901 | vty_self_insert_overwrite (vty, c2); | |
902 | } | |
903 | } | |
904 | ||
905 | /* Do completion at vty interface. */ | |
906 | static void | |
907 | vty_complete_command (struct vty *vty) | |
908 | { | |
909 | int i; | |
910 | int ret; | |
911 | char **matched = NULL; | |
912 | vector vline; | |
913 | ||
914 | if (vty->node == AUTH_NODE || vty->node == AUTH_ENABLE_NODE) | |
915 | return; | |
916 | ||
917 | vline = cmd_make_strvec (vty->buf); | |
918 | if (vline == NULL) | |
919 | return; | |
920 | ||
921 | /* In case of 'help \t'. */ | |
922 | if (isspace ((int) vty->buf[vty->length - 1])) | |
7bf5d992 | 923 | vector_set (vline, NULL); |
718e3744 | 924 | |
ebacb4ed | 925 | matched = cmd_complete_command (vline, vty, &ret); |
d0bfb22c | 926 | |
718e3744 | 927 | cmd_free_strvec (vline); |
928 | ||
929 | vty_out (vty, "%s", VTY_NEWLINE); | |
930 | switch (ret) | |
931 | { | |
932 | case CMD_ERR_AMBIGUOUS: | |
933 | vty_out (vty, "%% Ambiguous command.%s", VTY_NEWLINE); | |
934 | vty_prompt (vty); | |
935 | vty_redraw_line (vty); | |
936 | break; | |
937 | case CMD_ERR_NO_MATCH: | |
938 | /* vty_out (vty, "%% There is no matched command.%s", VTY_NEWLINE); */ | |
939 | vty_prompt (vty); | |
940 | vty_redraw_line (vty); | |
941 | break; | |
942 | case CMD_COMPLETE_FULL_MATCH: | |
745e2754 DL |
943 | if (!matched[0]) |
944 | { | |
945 | /* 2016-11-28 equinox -- need to debug, SEGV here */ | |
946 | vty_out (vty, "%% CLI BUG: FULL_MATCH with NULL str%s", VTY_NEWLINE); | |
947 | vty_prompt (vty); | |
948 | vty_redraw_line (vty); | |
949 | break; | |
950 | } | |
718e3744 | 951 | vty_prompt (vty); |
952 | vty_redraw_line (vty); | |
953 | vty_backward_pure_word (vty); | |
954 | vty_insert_word_overwrite (vty, matched[0]); | |
955 | vty_self_insert (vty, ' '); | |
956 | XFREE (MTYPE_TMP, matched[0]); | |
957 | break; | |
958 | case CMD_COMPLETE_MATCH: | |
959 | vty_prompt (vty); | |
960 | vty_redraw_line (vty); | |
961 | vty_backward_pure_word (vty); | |
962 | vty_insert_word_overwrite (vty, matched[0]); | |
963 | XFREE (MTYPE_TMP, matched[0]); | |
964 | vector_only_index_free (matched); | |
965 | return; | |
966 | break; | |
967 | case CMD_COMPLETE_LIST_MATCH: | |
968 | for (i = 0; matched[i] != NULL; i++) | |
d0bfb22c QY |
969 | { |
970 | if (i != 0 && ((i % 6) == 0)) | |
971 | vty_out (vty, "%s", VTY_NEWLINE); | |
972 | vty_out (vty, "%-10s ", matched[i]); | |
973 | XFREE (MTYPE_TMP, matched[i]); | |
974 | } | |
718e3744 | 975 | vty_out (vty, "%s", VTY_NEWLINE); |
976 | ||
977 | vty_prompt (vty); | |
978 | vty_redraw_line (vty); | |
979 | break; | |
980 | case CMD_ERR_NOTHING_TODO: | |
981 | vty_prompt (vty); | |
982 | vty_redraw_line (vty); | |
983 | break; | |
984 | default: | |
985 | break; | |
986 | } | |
987 | if (matched) | |
988 | vector_only_index_free (matched); | |
989 | } | |
990 | ||
9fc7ebf1 | 991 | static void |
718e3744 | 992 | vty_describe_fold (struct vty *vty, int cmd_width, |
d0bfb22c | 993 | unsigned int desc_width, struct cmd_token *token) |
718e3744 | 994 | { |
8c328f11 | 995 | char *buf; |
996 | const char *cmd, *p; | |
718e3744 | 997 | int pos; |
998 | ||
aa1c90a4 | 999 | cmd = token->text; |
718e3744 | 1000 | |
1001 | if (desc_width <= 0) | |
1002 | { | |
cd40b329 | 1003 | vty_out (vty, " %-*s %s%s", cmd_width, cmd, token->desc, VTY_NEWLINE); |
718e3744 | 1004 | return; |
1005 | } | |
1006 | ||
cd40b329 | 1007 | buf = XCALLOC (MTYPE_TMP, strlen (token->desc) + 1); |
718e3744 | 1008 | |
cd40b329 | 1009 | for (p = token->desc; strlen (p) > desc_width; p += pos + 1) |
718e3744 | 1010 | { |
1011 | for (pos = desc_width; pos > 0; pos--) | |
1012 | if (*(p + pos) == ' ') | |
1013 | break; | |
1014 | ||
1015 | if (pos == 0) | |
1016 | break; | |
1017 | ||
1018 | strncpy (buf, p, pos); | |
1019 | buf[pos] = '\0'; | |
1020 | vty_out (vty, " %-*s %s%s", cmd_width, cmd, buf, VTY_NEWLINE); | |
1021 | ||
1022 | cmd = ""; | |
1023 | } | |
1024 | ||
1025 | vty_out (vty, " %-*s %s%s", cmd_width, cmd, p, VTY_NEWLINE); | |
1026 | ||
1027 | XFREE (MTYPE_TMP, buf); | |
1028 | } | |
1029 | ||
1030 | /* Describe matched command function. */ | |
1031 | static void | |
1032 | vty_describe_command (struct vty *vty) | |
1033 | { | |
1034 | int ret; | |
1035 | vector vline; | |
1036 | vector describe; | |
8c328f11 | 1037 | unsigned int i, width, desc_width; |
cd40b329 | 1038 | struct cmd_token *token, *token_cr = NULL; |
718e3744 | 1039 | |
1040 | vline = cmd_make_strvec (vty->buf); | |
1041 | ||
1042 | /* In case of '> ?'. */ | |
1043 | if (vline == NULL) | |
1044 | { | |
1045 | vline = vector_init (1); | |
7bf5d992 | 1046 | vector_set (vline, NULL); |
718e3744 | 1047 | } |
d0bfb22c | 1048 | else |
718e3744 | 1049 | if (isspace ((int) vty->buf[vty->length - 1])) |
7bf5d992 | 1050 | vector_set (vline, NULL); |
718e3744 | 1051 | |
1052 | describe = cmd_describe_command (vline, vty, &ret); | |
1053 | ||
1054 | vty_out (vty, "%s", VTY_NEWLINE); | |
1055 | ||
1056 | /* Ambiguous error. */ | |
1057 | switch (ret) | |
1058 | { | |
1059 | case CMD_ERR_AMBIGUOUS: | |
718e3744 | 1060 | vty_out (vty, "%% Ambiguous command.%s", VTY_NEWLINE); |
2fe8aba3 | 1061 | goto out; |
718e3744 | 1062 | break; |
1063 | case CMD_ERR_NO_MATCH: | |
718e3744 | 1064 | vty_out (vty, "%% There is no matched command.%s", VTY_NEWLINE); |
2fe8aba3 | 1065 | goto out; |
718e3744 | 1066 | break; |
d0bfb22c | 1067 | } |
718e3744 | 1068 | |
1069 | /* Get width of command string. */ | |
1070 | width = 0; | |
55468c86 | 1071 | for (i = 0; i < vector_active (describe); i++) |
cd40b329 | 1072 | if ((token = vector_slot (describe, i)) != NULL) |
718e3744 | 1073 | { |
d0bfb22c | 1074 | unsigned int len; |
718e3744 | 1075 | |
d0bfb22c QY |
1076 | if (token->text[0] == '\0') |
1077 | continue; | |
718e3744 | 1078 | |
d0bfb22c | 1079 | len = strlen (token->text); |
718e3744 | 1080 | |
d0bfb22c QY |
1081 | if (width < len) |
1082 | width = len; | |
718e3744 | 1083 | } |
1084 | ||
1085 | /* Get width of description string. */ | |
1086 | desc_width = vty->width - (width + 6); | |
1087 | ||
1088 | /* Print out description. */ | |
55468c86 | 1089 | for (i = 0; i < vector_active (describe); i++) |
cd40b329 | 1090 | if ((token = vector_slot (describe, i)) != NULL) |
718e3744 | 1091 | { |
d0bfb22c QY |
1092 | if (token->text[0] == '\0') |
1093 | continue; | |
1094 | ||
1095 | if (strcmp (token->text, CMD_CR_TEXT) == 0) | |
1096 | { | |
1097 | token_cr = token; | |
1098 | continue; | |
1099 | } | |
1100 | ||
1101 | if (!token->desc) | |
1102 | vty_out (vty, " %-s%s", | |
1103 | token->text, | |
1104 | VTY_NEWLINE); | |
1105 | else if (desc_width >= strlen (token->desc)) | |
1106 | vty_out (vty, " %-*s %s%s", width, | |
1107 | token->text, | |
1108 | token->desc, VTY_NEWLINE); | |
1109 | else | |
1110 | vty_describe_fold (vty, width, desc_width, token); | |
718e3744 | 1111 | |
1112 | #if 0 | |
d0bfb22c QY |
1113 | vty_out (vty, " %-*s %s%s", width |
1114 | desc->cmd[0] == '.' ? desc->cmd + 1 : desc->cmd, | |
1115 | desc->str ? desc->str : "", VTY_NEWLINE); | |
718e3744 | 1116 | #endif /* 0 */ |
1117 | } | |
1118 | ||
cd40b329 | 1119 | if ((token = token_cr)) |
718e3744 | 1120 | { |
cd40b329 | 1121 | if (!token->desc) |
d0bfb22c QY |
1122 | vty_out (vty, " %-s%s", |
1123 | token->text, | |
1124 | VTY_NEWLINE); | |
cd40b329 | 1125 | else if (desc_width >= strlen (token->desc)) |
d0bfb22c QY |
1126 | vty_out (vty, " %-*s %s%s", width, |
1127 | token->text, | |
1128 | token->desc, VTY_NEWLINE); | |
718e3744 | 1129 | else |
d0bfb22c | 1130 | vty_describe_fold (vty, width, desc_width, token); |
718e3744 | 1131 | } |
1132 | ||
2fe8aba3 | 1133 | out: |
718e3744 | 1134 | cmd_free_strvec (vline); |
d16e0433 PJ |
1135 | if (describe) |
1136 | vector_free (describe); | |
718e3744 | 1137 | |
1138 | vty_prompt (vty); | |
1139 | vty_redraw_line (vty); | |
1140 | } | |
1141 | ||
9fc7ebf1 | 1142 | static void |
718e3744 | 1143 | vty_clear_buf (struct vty *vty) |
1144 | { | |
1145 | memset (vty->buf, 0, vty->max); | |
1146 | } | |
1147 | ||
1148 | /* ^C stop current input and do not add command line to the history. */ | |
1149 | static void | |
1150 | vty_stop_input (struct vty *vty) | |
1151 | { | |
1152 | vty->cp = vty->length = 0; | |
1153 | vty_clear_buf (vty); | |
1154 | vty_out (vty, "%s", VTY_NEWLINE); | |
1155 | ||
1156 | switch (vty->node) | |
1157 | { | |
1158 | case VIEW_NODE: | |
1159 | case ENABLE_NODE: | |
1160 | /* Nothing to do. */ | |
1161 | break; | |
1162 | case CONFIG_NODE: | |
1163 | case INTERFACE_NODE: | |
1164 | case ZEBRA_NODE: | |
1165 | case RIP_NODE: | |
1166 | case RIPNG_NODE: | |
1167 | case BGP_NODE: | |
1168 | case RMAP_NODE: | |
1169 | case OSPF_NODE: | |
1170 | case OSPF6_NODE: | |
eac6e3f0 RW |
1171 | case LDP_NODE: |
1172 | case LDP_IPV4_NODE: | |
1173 | case LDP_IPV6_NODE: | |
1174 | case LDP_IPV4_IFACE_NODE: | |
1175 | case LDP_IPV6_IFACE_NODE: | |
1176 | case LDP_L2VPN_NODE: | |
1177 | case LDP_PSEUDOWIRE_NODE: | |
9e867fe6 | 1178 | case ISIS_NODE: |
718e3744 | 1179 | case KEYCHAIN_NODE: |
1180 | case KEYCHAIN_KEY_NODE: | |
1181 | case MASC_NODE: | |
12e41d03 | 1182 | case PIM_NODE: |
718e3744 | 1183 | case VTY_NODE: |
1184 | vty_config_unlock (vty); | |
1185 | vty->node = ENABLE_NODE; | |
1186 | break; | |
1187 | default: | |
1188 | /* Unknown node, we have to ignore it. */ | |
1189 | break; | |
1190 | } | |
1191 | vty_prompt (vty); | |
1192 | ||
1193 | /* Set history pointer to the latest one. */ | |
1194 | vty->hp = vty->hindex; | |
1195 | } | |
1196 | ||
1197 | /* Add current command line to the history buffer. */ | |
1198 | static void | |
1199 | vty_hist_add (struct vty *vty) | |
1200 | { | |
1201 | int index; | |
1202 | ||
1203 | if (vty->length == 0) | |
1204 | return; | |
1205 | ||
1206 | index = vty->hindex ? vty->hindex - 1 : VTY_MAXHIST - 1; | |
1207 | ||
1208 | /* Ignore the same string as previous one. */ | |
1209 | if (vty->hist[index]) | |
1210 | if (strcmp (vty->buf, vty->hist[index]) == 0) | |
1211 | { | |
1212 | vty->hp = vty->hindex; | |
1213 | return; | |
1214 | } | |
1215 | ||
1216 | /* Insert history entry. */ | |
1217 | if (vty->hist[vty->hindex]) | |
1218 | XFREE (MTYPE_VTY_HIST, vty->hist[vty->hindex]); | |
1219 | vty->hist[vty->hindex] = XSTRDUP (MTYPE_VTY_HIST, vty->buf); | |
1220 | ||
1221 | /* History index rotation. */ | |
1222 | vty->hindex++; | |
1223 | if (vty->hindex == VTY_MAXHIST) | |
1224 | vty->hindex = 0; | |
1225 | ||
1226 | vty->hp = vty->hindex; | |
1227 | } | |
1228 | ||
1229 | /* #define TELNET_OPTION_DEBUG */ | |
1230 | ||
1231 | /* Get telnet window size. */ | |
1232 | static int | |
1233 | vty_telnet_option (struct vty *vty, unsigned char *buf, int nbytes) | |
1234 | { | |
1235 | #ifdef TELNET_OPTION_DEBUG | |
1236 | int i; | |
1237 | ||
1238 | for (i = 0; i < nbytes; i++) | |
1239 | { | |
1240 | switch (buf[i]) | |
d0bfb22c QY |
1241 | { |
1242 | case IAC: | |
1243 | vty_out (vty, "IAC "); | |
1244 | break; | |
1245 | case WILL: | |
1246 | vty_out (vty, "WILL "); | |
1247 | break; | |
1248 | case WONT: | |
1249 | vty_out (vty, "WONT "); | |
1250 | break; | |
1251 | case DO: | |
1252 | vty_out (vty, "DO "); | |
1253 | break; | |
1254 | case DONT: | |
1255 | vty_out (vty, "DONT "); | |
1256 | break; | |
1257 | case SB: | |
1258 | vty_out (vty, "SB "); | |
1259 | break; | |
1260 | case SE: | |
1261 | vty_out (vty, "SE "); | |
1262 | break; | |
1263 | case TELOPT_ECHO: | |
1264 | vty_out (vty, "TELOPT_ECHO %s", VTY_NEWLINE); | |
1265 | break; | |
1266 | case TELOPT_SGA: | |
1267 | vty_out (vty, "TELOPT_SGA %s", VTY_NEWLINE); | |
1268 | break; | |
1269 | case TELOPT_NAWS: | |
1270 | vty_out (vty, "TELOPT_NAWS %s", VTY_NEWLINE); | |
1271 | break; | |
1272 | default: | |
1273 | vty_out (vty, "%x ", buf[i]); | |
1274 | break; | |
1275 | } | |
718e3744 | 1276 | } |
1277 | vty_out (vty, "%s", VTY_NEWLINE); | |
1278 | ||
1279 | #endif /* TELNET_OPTION_DEBUG */ | |
1280 | ||
1281 | switch (buf[0]) | |
1282 | { | |
1283 | case SB: | |
9fc7ebf1 | 1284 | vty->sb_len = 0; |
718e3744 | 1285 | vty->iac_sb_in_progress = 1; |
1286 | return 0; | |
1287 | break; | |
d0bfb22c | 1288 | case SE: |
718e3744 | 1289 | { |
d0bfb22c QY |
1290 | if (!vty->iac_sb_in_progress) |
1291 | return 0; | |
1292 | ||
1293 | if ((vty->sb_len == 0) || (vty->sb_buf[0] == '\0')) | |
1294 | { | |
1295 | vty->iac_sb_in_progress = 0; | |
1296 | return 0; | |
1297 | } | |
1298 | switch (vty->sb_buf[0]) | |
1299 | { | |
1300 | case TELOPT_NAWS: | |
1301 | if (vty->sb_len != TELNET_NAWS_SB_LEN) | |
1302 | zlog_warn("RFC 1073 violation detected: telnet NAWS option " | |
1303 | "should send %d characters, but we received %lu", | |
1304 | TELNET_NAWS_SB_LEN, (u_long)vty->sb_len); | |
1305 | else if (sizeof(vty->sb_buf) < TELNET_NAWS_SB_LEN) | |
1306 | zlog_err("Bug detected: sizeof(vty->sb_buf) %lu < %d, " | |
1307 | "too small to handle the telnet NAWS option", | |
1308 | (u_long)sizeof(vty->sb_buf), TELNET_NAWS_SB_LEN); | |
1309 | else | |
1310 | { | |
1311 | vty->width = ((vty->sb_buf[1] << 8)|vty->sb_buf[2]); | |
1312 | vty->height = ((vty->sb_buf[3] << 8)|vty->sb_buf[4]); | |
9fc7ebf1 | 1313 | #ifdef TELNET_OPTION_DEBUG |
d0bfb22c QY |
1314 | vty_out(vty, "TELNET NAWS window size negotiation completed: " |
1315 | "width %d, height %d%s", | |
1316 | vty->width, vty->height, VTY_NEWLINE); | |
9fc7ebf1 | 1317 | #endif |
d0bfb22c QY |
1318 | } |
1319 | break; | |
1320 | } | |
1321 | vty->iac_sb_in_progress = 0; | |
1322 | return 0; | |
1323 | break; | |
718e3744 | 1324 | } |
1325 | default: | |
1326 | break; | |
1327 | } | |
1328 | return 1; | |
1329 | } | |
1330 | ||
1331 | /* Execute current command line. */ | |
1332 | static int | |
1333 | vty_execute (struct vty *vty) | |
1334 | { | |
1335 | int ret; | |
1336 | ||
1337 | ret = CMD_SUCCESS; | |
1338 | ||
1339 | switch (vty->node) | |
1340 | { | |
1341 | case AUTH_NODE: | |
1342 | case AUTH_ENABLE_NODE: | |
1343 | vty_auth (vty, vty->buf); | |
1344 | break; | |
1345 | default: | |
1346 | ret = vty_command (vty, vty->buf); | |
1347 | if (vty->type == VTY_TERM) | |
d0bfb22c | 1348 | vty_hist_add (vty); |
718e3744 | 1349 | break; |
1350 | } | |
1351 | ||
1352 | /* Clear command line buffer. */ | |
1353 | vty->cp = vty->length = 0; | |
1354 | vty_clear_buf (vty); | |
1355 | ||
5a646650 | 1356 | if (vty->status != VTY_CLOSE ) |
718e3744 | 1357 | vty_prompt (vty); |
1358 | ||
1359 | return ret; | |
1360 | } | |
1361 | ||
1362 | #define CONTROL(X) ((X) - '@') | |
1363 | #define VTY_NORMAL 0 | |
1364 | #define VTY_PRE_ESCAPE 1 | |
1365 | #define VTY_ESCAPE 2 | |
1366 | ||
1367 | /* Escape character command map. */ | |
1368 | static void | |
1369 | vty_escape_map (unsigned char c, struct vty *vty) | |
1370 | { | |
1371 | switch (c) | |
1372 | { | |
1373 | case ('A'): | |
1374 | vty_previous_line (vty); | |
1375 | break; | |
1376 | case ('B'): | |
1377 | vty_next_line (vty); | |
1378 | break; | |
1379 | case ('C'): | |
1380 | vty_forward_char (vty); | |
1381 | break; | |
1382 | case ('D'): | |
1383 | vty_backward_char (vty); | |
1384 | break; | |
1385 | default: | |
1386 | break; | |
1387 | } | |
1388 | ||
1389 | /* Go back to normal mode. */ | |
1390 | vty->escape = VTY_NORMAL; | |
1391 | } | |
1392 | ||
1393 | /* Quit print out to the buffer. */ | |
1394 | static void | |
1395 | vty_buffer_reset (struct vty *vty) | |
1396 | { | |
1397 | buffer_reset (vty->obuf); | |
1398 | vty_prompt (vty); | |
1399 | vty_redraw_line (vty); | |
1400 | } | |
1401 | ||
1402 | /* Read data via vty socket. */ | |
1403 | static int | |
1404 | vty_read (struct thread *thread) | |
1405 | { | |
1406 | int i; | |
718e3744 | 1407 | int nbytes; |
1408 | unsigned char buf[VTY_READ_BUFSIZ]; | |
1409 | ||
1410 | int vty_sock = THREAD_FD (thread); | |
1411 | struct vty *vty = THREAD_ARG (thread); | |
1412 | vty->t_read = NULL; | |
1413 | ||
1414 | /* Read raw data from socket */ | |
9fc7ebf1 | 1415 | if ((nbytes = read (vty->fd, buf, VTY_READ_BUFSIZ)) <= 0) |
1416 | { | |
1417 | if (nbytes < 0) | |
d0bfb22c QY |
1418 | { |
1419 | if (ERRNO_IO_RETRY(errno)) | |
1420 | { | |
1421 | vty_event (VTY_READ, vty_sock, vty); | |
1422 | return 0; | |
1423 | } | |
1424 | vty->monitor = 0; /* disable monitoring to avoid infinite recursion */ | |
1425 | zlog_warn("%s: read error on vty client fd %d, closing: %s", | |
1426 | __func__, vty->fd, safe_strerror(errno)); | |
009a4a07 | 1427 | buffer_reset(vty->obuf); |
d0bfb22c | 1428 | } |
9fc7ebf1 | 1429 | vty->status = VTY_CLOSE; |
1430 | } | |
718e3744 | 1431 | |
d0bfb22c | 1432 | for (i = 0; i < nbytes; i++) |
718e3744 | 1433 | { |
1434 | if (buf[i] == IAC) | |
d0bfb22c QY |
1435 | { |
1436 | if (!vty->iac) | |
1437 | { | |
1438 | vty->iac = 1; | |
1439 | continue; | |
1440 | } | |
1441 | else | |
1442 | { | |
1443 | vty->iac = 0; | |
1444 | } | |
1445 | } | |
1446 | ||
718e3744 | 1447 | if (vty->iac_sb_in_progress && !vty->iac) |
d0bfb22c QY |
1448 | { |
1449 | if (vty->sb_len < sizeof(vty->sb_buf)) | |
1450 | vty->sb_buf[vty->sb_len] = buf[i]; | |
1451 | vty->sb_len++; | |
1452 | continue; | |
1453 | } | |
718e3744 | 1454 | |
1455 | if (vty->iac) | |
d0bfb22c QY |
1456 | { |
1457 | /* In case of telnet command */ | |
1458 | int ret = 0; | |
1459 | ret = vty_telnet_option (vty, buf + i, nbytes - i); | |
1460 | vty->iac = 0; | |
1461 | i += ret; | |
1462 | continue; | |
1463 | } | |
1464 | ||
718e3744 | 1465 | |
1466 | if (vty->status == VTY_MORE) | |
d0bfb22c QY |
1467 | { |
1468 | switch (buf[i]) | |
1469 | { | |
1470 | case CONTROL('C'): | |
1471 | case 'q': | |
1472 | case 'Q': | |
1473 | vty_buffer_reset (vty); | |
1474 | break; | |
718e3744 | 1475 | #if 0 /* More line does not work for "show ip bgp". */ |
d0bfb22c QY |
1476 | case '\n': |
1477 | case '\r': | |
1478 | vty->status = VTY_MORELINE; | |
1479 | break; | |
718e3744 | 1480 | #endif |
d0bfb22c QY |
1481 | default: |
1482 | break; | |
1483 | } | |
1484 | continue; | |
1485 | } | |
718e3744 | 1486 | |
1487 | /* Escape character. */ | |
1488 | if (vty->escape == VTY_ESCAPE) | |
d0bfb22c QY |
1489 | { |
1490 | vty_escape_map (buf[i], vty); | |
1491 | continue; | |
1492 | } | |
718e3744 | 1493 | |
1494 | /* Pre-escape status. */ | |
1495 | if (vty->escape == VTY_PRE_ESCAPE) | |
d0bfb22c QY |
1496 | { |
1497 | switch (buf[i]) | |
1498 | { | |
1499 | case '[': | |
1500 | vty->escape = VTY_ESCAPE; | |
1501 | break; | |
1502 | case 'b': | |
1503 | vty_backward_word (vty); | |
1504 | vty->escape = VTY_NORMAL; | |
1505 | break; | |
1506 | case 'f': | |
1507 | vty_forward_word (vty); | |
1508 | vty->escape = VTY_NORMAL; | |
1509 | break; | |
1510 | case 'd': | |
1511 | vty_forward_kill_word (vty); | |
1512 | vty->escape = VTY_NORMAL; | |
1513 | break; | |
1514 | case CONTROL('H'): | |
1515 | case 0x7f: | |
1516 | vty_backward_kill_word (vty); | |
1517 | vty->escape = VTY_NORMAL; | |
1518 | break; | |
1519 | default: | |
1520 | vty->escape = VTY_NORMAL; | |
1521 | break; | |
1522 | } | |
1523 | continue; | |
1524 | } | |
718e3744 | 1525 | |
1526 | switch (buf[i]) | |
d0bfb22c QY |
1527 | { |
1528 | case CONTROL('A'): | |
1529 | vty_beginning_of_line (vty); | |
1530 | break; | |
1531 | case CONTROL('B'): | |
1532 | vty_backward_char (vty); | |
1533 | break; | |
1534 | case CONTROL('C'): | |
1535 | vty_stop_input (vty); | |
1536 | break; | |
1537 | case CONTROL('D'): | |
1538 | vty_delete_char (vty); | |
1539 | break; | |
1540 | case CONTROL('E'): | |
1541 | vty_end_of_line (vty); | |
1542 | break; | |
1543 | case CONTROL('F'): | |
1544 | vty_forward_char (vty); | |
1545 | break; | |
1546 | case CONTROL('H'): | |
1547 | case 0x7f: | |
1548 | vty_delete_backward_char (vty); | |
1549 | break; | |
1550 | case CONTROL('K'): | |
1551 | vty_kill_line (vty); | |
1552 | break; | |
1553 | case CONTROL('N'): | |
1554 | vty_next_line (vty); | |
1555 | break; | |
1556 | case CONTROL('P'): | |
1557 | vty_previous_line (vty); | |
1558 | break; | |
1559 | case CONTROL('T'): | |
1560 | vty_transpose_chars (vty); | |
1561 | break; | |
1562 | case CONTROL('U'): | |
1563 | vty_kill_line_from_beginning (vty); | |
1564 | break; | |
1565 | case CONTROL('W'): | |
1566 | vty_backward_kill_word (vty); | |
1567 | break; | |
1568 | case CONTROL('Z'): | |
1569 | vty_end_config (vty); | |
1570 | break; | |
1571 | case '\n': | |
1572 | case '\r': | |
1573 | vty_out (vty, "%s", VTY_NEWLINE); | |
1574 | vty_execute (vty); | |
1575 | break; | |
1576 | case '\t': | |
1577 | vty_complete_command (vty); | |
1578 | break; | |
1579 | case '?': | |
1580 | if (vty->node == AUTH_NODE || vty->node == AUTH_ENABLE_NODE) | |
1581 | vty_self_insert (vty, buf[i]); | |
1582 | else | |
1583 | vty_describe_command (vty); | |
1584 | break; | |
1585 | case '\033': | |
1586 | if (i + 1 < nbytes && buf[i + 1] == '[') | |
1587 | { | |
1588 | vty->escape = VTY_ESCAPE; | |
1589 | i++; | |
1590 | } | |
1591 | else | |
1592 | vty->escape = VTY_PRE_ESCAPE; | |
1593 | break; | |
1594 | default: | |
1595 | if (buf[i] > 31 && buf[i] < 127) | |
1596 | vty_self_insert (vty, buf[i]); | |
1597 | break; | |
1598 | } | |
718e3744 | 1599 | } |
1600 | ||
1601 | /* Check status. */ | |
1602 | if (vty->status == VTY_CLOSE) | |
1603 | vty_close (vty); | |
1604 | else | |
1605 | { | |
c5e69a02 | 1606 | vty_event (VTY_WRITE, vty->wfd, vty); |
718e3744 | 1607 | vty_event (VTY_READ, vty_sock, vty); |
1608 | } | |
1609 | return 0; | |
1610 | } | |
1611 | ||
1612 | /* Flush buffer to the vty. */ | |
1613 | static int | |
1614 | vty_flush (struct thread *thread) | |
1615 | { | |
1616 | int erase; | |
9fc7ebf1 | 1617 | buffer_status_t flushrc; |
718e3744 | 1618 | int vty_sock = THREAD_FD (thread); |
1619 | struct vty *vty = THREAD_ARG (thread); | |
9fc7ebf1 | 1620 | |
718e3744 | 1621 | vty->t_write = NULL; |
1622 | ||
1623 | /* Tempolary disable read thread. */ | |
9fc7ebf1 | 1624 | if ((vty->lines == 0) && vty->t_read) |
1625 | { | |
1626 | thread_cancel (vty->t_read); | |
1627 | vty->t_read = NULL; | |
1628 | } | |
718e3744 | 1629 | |
1630 | /* Function execution continue. */ | |
9fc7ebf1 | 1631 | erase = ((vty->status == VTY_MORE || vty->status == VTY_MORELINE)); |
1632 | ||
1633 | /* N.B. if width is 0, that means we don't know the window size. */ | |
1035065f | 1634 | if ((vty->lines == 0) || (vty->width == 0) || (vty->height == 0)) |
c5e69a02 | 1635 | flushrc = buffer_flush_available(vty->obuf, vty_sock); |
9fc7ebf1 | 1636 | else if (vty->status == VTY_MORELINE) |
c5e69a02 | 1637 | flushrc = buffer_flush_window(vty->obuf, vty_sock, vty->width, |
d0bfb22c | 1638 | 1, erase, 0); |
9fc7ebf1 | 1639 | else |
c5e69a02 | 1640 | flushrc = buffer_flush_window(vty->obuf, vty_sock, vty->width, |
d0bfb22c QY |
1641 | vty->lines >= 0 ? vty->lines : |
1642 | vty->height, | |
1643 | erase, 0); | |
9fc7ebf1 | 1644 | switch (flushrc) |
1645 | { | |
1646 | case BUFFER_ERROR: | |
74542d73 | 1647 | vty->monitor = 0; /* disable monitoring to avoid infinite recursion */ |
9fc7ebf1 | 1648 | zlog_warn("buffer_flush failed on vty client fd %d, closing", |
d0bfb22c | 1649 | vty->fd); |
9fc7ebf1 | 1650 | buffer_reset(vty->obuf); |
1651 | vty_close(vty); | |
1652 | return 0; | |
1653 | case BUFFER_EMPTY: | |
1654 | if (vty->status == VTY_CLOSE) | |
d0bfb22c | 1655 | vty_close (vty); |
718e3744 | 1656 | else |
d0bfb22c QY |
1657 | { |
1658 | vty->status = VTY_NORMAL; | |
1659 | if (vty->lines == 0) | |
1660 | vty_event (VTY_READ, vty_sock, vty); | |
1661 | } | |
9fc7ebf1 | 1662 | break; |
1663 | case BUFFER_PENDING: | |
1664 | /* There is more data waiting to be written. */ | |
1665 | vty->status = VTY_MORE; | |
1666 | if (vty->lines == 0) | |
d0bfb22c | 1667 | vty_event (VTY_WRITE, vty_sock, vty); |
9fc7ebf1 | 1668 | break; |
1669 | } | |
718e3744 | 1670 | |
1671 | return 0; | |
1672 | } | |
1673 | ||
b7642925 DL |
1674 | /* allocate and initialise vty */ |
1675 | static struct vty * | |
1676 | vty_new_init (int vty_sock) | |
1677 | { | |
1678 | struct vty *vty; | |
1679 | ||
1680 | vty = vty_new (); | |
1681 | vty->fd = vty_sock; | |
1682 | vty->wfd = vty_sock; | |
1683 | vty->type = VTY_TERM; | |
1684 | vty->node = AUTH_NODE; | |
1685 | vty->fail = 0; | |
1686 | vty->cp = 0; | |
1687 | vty_clear_buf (vty); | |
1688 | vty->length = 0; | |
1689 | memset (vty->hist, 0, sizeof (vty->hist)); | |
1690 | vty->hp = 0; | |
1691 | vty->hindex = 0; | |
1692 | vector_set_index (vtyvec, vty_sock, vty); | |
1693 | vty->status = VTY_NORMAL; | |
1694 | vty->lines = -1; | |
1695 | vty->iac = 0; | |
1696 | vty->iac_sb_in_progress = 0; | |
1697 | vty->sb_len = 0; | |
1698 | ||
1699 | return vty; | |
1700 | } | |
1701 | ||
718e3744 | 1702 | /* Create new vty structure. */ |
9fc7ebf1 | 1703 | static struct vty * |
718e3744 | 1704 | vty_create (int vty_sock, union sockunion *su) |
1705 | { | |
d227617a | 1706 | char buf[SU_ADDRSTRLEN]; |
718e3744 | 1707 | struct vty *vty; |
1708 | ||
d227617a JBD |
1709 | sockunion2str(su, buf, SU_ADDRSTRLEN); |
1710 | ||
718e3744 | 1711 | /* Allocate new vty structure and set up default values. */ |
b7642925 DL |
1712 | vty = vty_new_init (vty_sock); |
1713 | ||
1714 | /* configurable parameters not part of basic init */ | |
1715 | vty->v_timeout = vty_timeout_val; | |
d227617a | 1716 | strcpy (vty->address, buf); |
718e3744 | 1717 | if (no_password_check) |
1718 | { | |
3c8ab49f | 1719 | if (host.advanced) |
d0bfb22c | 1720 | vty->node = ENABLE_NODE; |
718e3744 | 1721 | else |
d0bfb22c | 1722 | vty->node = VIEW_NODE; |
718e3744 | 1723 | } |
718e3744 | 1724 | if (host.lines >= 0) |
1725 | vty->lines = host.lines; | |
718e3744 | 1726 | |
1727 | if (! no_password_check) | |
1728 | { | |
1729 | /* Vty is not available if password isn't set. */ | |
1730 | if (host.password == NULL && host.password_encrypt == NULL) | |
d0bfb22c QY |
1731 | { |
1732 | vty_out (vty, "Vty password is not set.%s", VTY_NEWLINE); | |
1733 | vty->status = VTY_CLOSE; | |
1734 | vty_close (vty); | |
1735 | return NULL; | |
1736 | } | |
718e3744 | 1737 | } |
1738 | ||
1739 | /* Say hello to the world. */ | |
1740 | vty_hello (vty); | |
1741 | if (! no_password_check) | |
1742 | vty_out (vty, "%sUser Access Verification%s%s", VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE); | |
1743 | ||
1744 | /* Setting up terminal. */ | |
1745 | vty_will_echo (vty); | |
1746 | vty_will_suppress_go_ahead (vty); | |
1747 | ||
1748 | vty_dont_linemode (vty); | |
1749 | vty_do_window_size (vty); | |
1750 | /* vty_dont_lflow_ahead (vty); */ | |
1751 | ||
1752 | vty_prompt (vty); | |
1753 | ||
1754 | /* Add read/write thread. */ | |
1755 | vty_event (VTY_WRITE, vty_sock, vty); | |
1756 | vty_event (VTY_READ, vty_sock, vty); | |
1757 | ||
1758 | return vty; | |
1759 | } | |
1760 | ||
b7642925 | 1761 | /* create vty for stdio */ |
b510a06e DL |
1762 | static struct termios stdio_orig_termios; |
1763 | static struct vty *stdio_vty = NULL; | |
dbf78092 | 1764 | static void (*stdio_vty_atclose)(void); |
b510a06e DL |
1765 | |
1766 | static void | |
1767 | vty_stdio_reset (void) | |
1768 | { | |
1769 | if (stdio_vty) | |
1770 | { | |
1771 | tcsetattr (0, TCSANOW, &stdio_orig_termios); | |
1772 | stdio_vty = NULL; | |
dbf78092 DL |
1773 | |
1774 | if (stdio_vty_atclose) | |
1775 | stdio_vty_atclose (); | |
1776 | stdio_vty_atclose = NULL; | |
b510a06e DL |
1777 | } |
1778 | } | |
1779 | ||
b7642925 | 1780 | struct vty * |
dbf78092 | 1781 | vty_stdio (void (*atclose)()) |
b7642925 DL |
1782 | { |
1783 | struct vty *vty; | |
b510a06e | 1784 | struct termios termios; |
b7642925 | 1785 | |
b510a06e DL |
1786 | /* refuse creating two vtys on stdio */ |
1787 | if (stdio_vty) | |
1788 | return NULL; | |
1789 | ||
1790 | vty = stdio_vty = vty_new_init (0); | |
dbf78092 | 1791 | stdio_vty_atclose = atclose; |
b7642925 DL |
1792 | vty->wfd = 1; |
1793 | ||
1794 | /* always have stdio vty in a known _unchangeable_ state, don't want config | |
1795 | * to have any effect here to make sure scripting this works as intended */ | |
1796 | vty->node = ENABLE_NODE; | |
1797 | vty->v_timeout = 0; | |
1798 | strcpy (vty->address, "console"); | |
1799 | ||
b510a06e DL |
1800 | if (!tcgetattr (0, &stdio_orig_termios)) |
1801 | { | |
1802 | termios = stdio_orig_termios; | |
1803 | termios.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | |
1804 | | INLCR | IGNCR | ICRNL | IXON); | |
1805 | termios.c_oflag &= ~OPOST; | |
1806 | termios.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN); | |
1807 | termios.c_cflag &= ~(CSIZE | PARENB); | |
1808 | termios.c_cflag |= CS8; | |
1809 | tcsetattr (0, TCSANOW, &termios); | |
1810 | } | |
1811 | ||
b7642925 DL |
1812 | vty_prompt (vty); |
1813 | ||
1814 | /* Add read/write thread. */ | |
1815 | vty_event (VTY_WRITE, 1, vty); | |
1816 | vty_event (VTY_READ, 0, vty); | |
1817 | ||
1818 | return vty; | |
1819 | } | |
1820 | ||
718e3744 | 1821 | /* Accept connection from the network. */ |
1822 | static int | |
1823 | vty_accept (struct thread *thread) | |
1824 | { | |
1825 | int vty_sock; | |
718e3744 | 1826 | union sockunion su; |
1827 | int ret; | |
1828 | unsigned int on; | |
1829 | int accept_sock; | |
40ee54a7 | 1830 | struct prefix p; |
718e3744 | 1831 | struct access_list *acl = NULL; |
d227617a | 1832 | char buf[SU_ADDRSTRLEN]; |
718e3744 | 1833 | |
1834 | accept_sock = THREAD_FD (thread); | |
1835 | ||
1836 | /* We continue hearing vty socket. */ | |
1837 | vty_event (VTY_SERV, accept_sock, NULL); | |
1838 | ||
1839 | memset (&su, 0, sizeof (union sockunion)); | |
1840 | ||
1841 | /* We can handle IPv4 or IPv6 socket. */ | |
1842 | vty_sock = sockunion_accept (accept_sock, &su); | |
1843 | if (vty_sock < 0) | |
1844 | { | |
6099b3b5 | 1845 | zlog_warn ("can't accept vty socket : %s", safe_strerror (errno)); |
718e3744 | 1846 | return -1; |
1847 | } | |
9fc7ebf1 | 1848 | set_nonblocking(vty_sock); |
2da59394 | 1849 | set_cloexec(vty_sock); |
718e3744 | 1850 | |
40ee54a7 | 1851 | sockunion2hostprefix (&su, &p); |
718e3744 | 1852 | |
1853 | /* VTY's accesslist apply. */ | |
40ee54a7 | 1854 | if (p.family == AF_INET && vty_accesslist_name) |
718e3744 | 1855 | { |
1856 | if ((acl = access_list_lookup (AFI_IP, vty_accesslist_name)) && | |
d0bfb22c QY |
1857 | (access_list_apply (acl, &p) == FILTER_DENY)) |
1858 | { | |
1859 | zlog (NULL, LOG_INFO, "Vty connection refused from %s", | |
1860 | sockunion2str (&su, buf, SU_ADDRSTRLEN)); | |
1861 | close (vty_sock); | |
1862 | ||
1863 | /* continue accepting connections */ | |
1864 | vty_event (VTY_SERV, accept_sock, NULL); | |
1865 | ||
1866 | return 0; | |
1867 | } | |
718e3744 | 1868 | } |
1869 | ||
718e3744 | 1870 | /* VTY's ipv6 accesslist apply. */ |
40ee54a7 | 1871 | if (p.family == AF_INET6 && vty_ipv6_accesslist_name) |
718e3744 | 1872 | { |
1873 | if ((acl = access_list_lookup (AFI_IP6, vty_ipv6_accesslist_name)) && | |
d0bfb22c QY |
1874 | (access_list_apply (acl, &p) == FILTER_DENY)) |
1875 | { | |
1876 | zlog (NULL, LOG_INFO, "Vty connection refused from %s", | |
1877 | sockunion2str (&su, buf, SU_ADDRSTRLEN)); | |
1878 | close (vty_sock); | |
1879 | ||
1880 | /* continue accepting connections */ | |
1881 | vty_event (VTY_SERV, accept_sock, NULL); | |
1882 | ||
1883 | return 0; | |
1884 | } | |
718e3744 | 1885 | } |
d0bfb22c | 1886 | |
718e3744 | 1887 | on = 1; |
d0bfb22c QY |
1888 | ret = setsockopt (vty_sock, IPPROTO_TCP, TCP_NODELAY, |
1889 | (char *) &on, sizeof (on)); | |
718e3744 | 1890 | if (ret < 0) |
d0bfb22c QY |
1891 | zlog (NULL, LOG_INFO, "can't set sockopt to vty_sock : %s", |
1892 | safe_strerror (errno)); | |
718e3744 | 1893 | |
78e6cd98 | 1894 | zlog (NULL, LOG_INFO, "Vty connection from %s", |
d0bfb22c | 1895 | sockunion2str (&su, buf, SU_ADDRSTRLEN)); |
78e6cd98 | 1896 | |
9206f9ec | 1897 | vty_create (vty_sock, &su); |
718e3744 | 1898 | |
1899 | return 0; | |
1900 | } | |
1901 | ||
9fc7ebf1 | 1902 | static void |
718e3744 | 1903 | vty_serv_sock_addrinfo (const char *hostname, unsigned short port) |
1904 | { | |
1905 | int ret; | |
1906 | struct addrinfo req; | |
1907 | struct addrinfo *ainfo; | |
1908 | struct addrinfo *ainfo_save; | |
1909 | int sock; | |
1910 | char port_str[BUFSIZ]; | |
1911 | ||
1912 | memset (&req, 0, sizeof (struct addrinfo)); | |
1913 | req.ai_flags = AI_PASSIVE; | |
1914 | req.ai_family = AF_UNSPEC; | |
1915 | req.ai_socktype = SOCK_STREAM; | |
1916 | sprintf (port_str, "%d", port); | |
1917 | port_str[sizeof (port_str) - 1] = '\0'; | |
1918 | ||
1919 | ret = getaddrinfo (hostname, port_str, &req, &ainfo); | |
1920 | ||
1921 | if (ret != 0) | |
1922 | { | |
1923 | fprintf (stderr, "getaddrinfo failed: %s\n", gai_strerror (ret)); | |
1924 | exit (1); | |
1925 | } | |
1926 | ||
1927 | ainfo_save = ainfo; | |
1928 | ||
1929 | do | |
1930 | { | |
1931 | if (ainfo->ai_family != AF_INET | |
d0bfb22c | 1932 | && ainfo->ai_family != AF_INET6 |
d0bfb22c QY |
1933 | ) |
1934 | continue; | |
718e3744 | 1935 | |
1936 | sock = socket (ainfo->ai_family, ainfo->ai_socktype, ainfo->ai_protocol); | |
1937 | if (sock < 0) | |
d0bfb22c | 1938 | continue; |
718e3744 | 1939 | |
ca051269 | 1940 | sockopt_v6only (ainfo->ai_family, sock); |
718e3744 | 1941 | sockopt_reuseaddr (sock); |
1942 | sockopt_reuseport (sock); | |
2da59394 | 1943 | set_cloexec (sock); |
718e3744 | 1944 | |
1945 | ret = bind (sock, ainfo->ai_addr, ainfo->ai_addrlen); | |
1946 | if (ret < 0) | |
d0bfb22c QY |
1947 | { |
1948 | close (sock); /* Avoid sd leak. */ | |
1949 | continue; | |
1950 | } | |
718e3744 | 1951 | |
1952 | ret = listen (sock, 3); | |
d0bfb22c QY |
1953 | if (ret < 0) |
1954 | { | |
1955 | close (sock); /* Avoid sd leak. */ | |
1956 | continue; | |
1957 | } | |
718e3744 | 1958 | |
1959 | vty_event (VTY_SERV, sock, NULL); | |
1960 | } | |
1961 | while ((ainfo = ainfo->ai_next) != NULL); | |
1962 | ||
1963 | freeaddrinfo (ainfo_save); | |
1964 | } | |
718e3744 | 1965 | |
1966 | #ifdef VTYSH | |
1967 | /* For sockaddr_un. */ | |
1968 | #include <sys/un.h> | |
1969 | ||
1970 | /* VTY shell UNIX domain socket. */ | |
9fc7ebf1 | 1971 | static void |
6ad96ea1 | 1972 | vty_serv_un (const char *path) |
718e3744 | 1973 | { |
1974 | int ret; | |
75e15fe4 | 1975 | int sock, len; |
718e3744 | 1976 | struct sockaddr_un serv; |
1977 | mode_t old_mask; | |
edd7c245 | 1978 | struct zprivs_ids_t ids; |
d0bfb22c | 1979 | |
718e3744 | 1980 | /* First of all, unlink existing socket */ |
1981 | unlink (path); | |
1982 | ||
1983 | /* Set umask */ | |
1921e6f8 | 1984 | old_mask = umask (0007); |
718e3744 | 1985 | |
1986 | /* Make UNIX domain socket. */ | |
1987 | sock = socket (AF_UNIX, SOCK_STREAM, 0); | |
1988 | if (sock < 0) | |
1989 | { | |
6a52d0d1 | 1990 | zlog_err("Cannot create unix stream socket: %s", safe_strerror(errno)); |
718e3744 | 1991 | return; |
1992 | } | |
1993 | ||
1994 | /* Make server socket. */ | |
1995 | memset (&serv, 0, sizeof (struct sockaddr_un)); | |
1996 | serv.sun_family = AF_UNIX; | |
1997 | strncpy (serv.sun_path, path, strlen (path)); | |
6f0e3f6e | 1998 | #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN |
718e3744 | 1999 | len = serv.sun_len = SUN_LEN(&serv); |
2000 | #else | |
2001 | len = sizeof (serv.sun_family) + strlen (serv.sun_path); | |
6f0e3f6e | 2002 | #endif /* HAVE_STRUCT_SOCKADDR_UN_SUN_LEN */ |
718e3744 | 2003 | |
2da59394 DL |
2004 | set_cloexec (sock); |
2005 | ||
718e3744 | 2006 | ret = bind (sock, (struct sockaddr *) &serv, len); |
2007 | if (ret < 0) | |
2008 | { | |
6a52d0d1 | 2009 | zlog_err("Cannot bind path %s: %s", path, safe_strerror(errno)); |
d0bfb22c | 2010 | close (sock); /* Avoid sd leak. */ |
718e3744 | 2011 | return; |
2012 | } | |
2013 | ||
2014 | ret = listen (sock, 5); | |
2015 | if (ret < 0) | |
2016 | { | |
6a52d0d1 | 2017 | zlog_err("listen(fd %d) failed: %s", sock, safe_strerror(errno)); |
d0bfb22c | 2018 | close (sock); /* Avoid sd leak. */ |
718e3744 | 2019 | return; |
2020 | } | |
2021 | ||
2022 | umask (old_mask); | |
2023 | ||
edd7c245 | 2024 | zprivs_get_ids(&ids); |
d0bfb22c | 2025 | |
edd7c245 | 2026 | if (ids.gid_vty > 0) |
2027 | { | |
2028 | /* set group of socket */ | |
2029 | if ( chown (path, -1, ids.gid_vty) ) | |
2030 | { | |
2031 | zlog_err ("vty_serv_un: could chown socket, %s", | |
6099b3b5 | 2032 | safe_strerror (errno) ); |
edd7c245 | 2033 | } |
2034 | } | |
2035 | ||
718e3744 | 2036 | vty_event (VTYSH_SERV, sock, NULL); |
2037 | } | |
2038 | ||
2039 | /* #define VTYSH_DEBUG 1 */ | |
2040 | ||
2041 | static int | |
2042 | vtysh_accept (struct thread *thread) | |
2043 | { | |
2044 | int accept_sock; | |
2045 | int sock; | |
2046 | int client_len; | |
2047 | struct sockaddr_un client; | |
2048 | struct vty *vty; | |
d0bfb22c | 2049 | |
718e3744 | 2050 | accept_sock = THREAD_FD (thread); |
2051 | ||
2052 | vty_event (VTYSH_SERV, accept_sock, NULL); | |
2053 | ||
2054 | memset (&client, 0, sizeof (struct sockaddr_un)); | |
2055 | client_len = sizeof (struct sockaddr_un); | |
2056 | ||
e473b032 | 2057 | sock = accept (accept_sock, (struct sockaddr *) &client, |
d0bfb22c | 2058 | (socklen_t *) &client_len); |
718e3744 | 2059 | |
2060 | if (sock < 0) | |
2061 | { | |
6099b3b5 | 2062 | zlog_warn ("can't accept vty socket : %s", safe_strerror (errno)); |
718e3744 | 2063 | return -1; |
2064 | } | |
2065 | ||
9fc7ebf1 | 2066 | if (set_nonblocking(sock) < 0) |
75e15fe4 | 2067 | { |
9fc7ebf1 | 2068 | zlog_warn ("vtysh_accept: could not set vty socket %d to non-blocking," |
2069 | " %s, closing", sock, safe_strerror (errno)); | |
75e15fe4 | 2070 | close (sock); |
2071 | return -1; | |
2072 | } | |
2da59394 DL |
2073 | set_cloexec(sock); |
2074 | ||
718e3744 | 2075 | #ifdef VTYSH_DEBUG |
2076 | printf ("VTY shell accept\n"); | |
2077 | #endif /* VTYSH_DEBUG */ | |
2078 | ||
2079 | vty = vty_new (); | |
2080 | vty->fd = sock; | |
c5e69a02 | 2081 | vty->wfd = sock; |
718e3744 | 2082 | vty->type = VTY_SHELL_SERV; |
2083 | vty->node = VIEW_NODE; | |
2084 | ||
2085 | vty_event (VTYSH_READ, sock, vty); | |
2086 | ||
2087 | return 0; | |
2088 | } | |
2089 | ||
9fc7ebf1 | 2090 | static int |
2091 | vtysh_flush(struct vty *vty) | |
2092 | { | |
c5e69a02 | 2093 | switch (buffer_flush_available(vty->obuf, vty->wfd)) |
9fc7ebf1 | 2094 | { |
2095 | case BUFFER_PENDING: | |
c5e69a02 | 2096 | vty_event(VTYSH_WRITE, vty->wfd, vty); |
9fc7ebf1 | 2097 | break; |
2098 | case BUFFER_ERROR: | |
74542d73 | 2099 | vty->monitor = 0; /* disable monitoring to avoid infinite recursion */ |
9fc7ebf1 | 2100 | zlog_warn("%s: write error to fd %d, closing", __func__, vty->fd); |
2101 | buffer_reset(vty->obuf); | |
2102 | vty_close(vty); | |
2103 | return -1; | |
2104 | break; | |
2105 | case BUFFER_EMPTY: | |
2106 | break; | |
2107 | } | |
2108 | return 0; | |
2109 | } | |
2110 | ||
718e3744 | 2111 | static int |
2112 | vtysh_read (struct thread *thread) | |
2113 | { | |
2114 | int ret; | |
2115 | int sock; | |
2116 | int nbytes; | |
2117 | struct vty *vty; | |
2118 | unsigned char buf[VTY_READ_BUFSIZ]; | |
9fc7ebf1 | 2119 | unsigned char *p; |
718e3744 | 2120 | u_char header[4] = {0, 0, 0, 0}; |
2121 | ||
2122 | sock = THREAD_FD (thread); | |
2123 | vty = THREAD_ARG (thread); | |
2124 | vty->t_read = NULL; | |
2125 | ||
9fc7ebf1 | 2126 | if ((nbytes = read (sock, buf, VTY_READ_BUFSIZ)) <= 0) |
718e3744 | 2127 | { |
9fc7ebf1 | 2128 | if (nbytes < 0) |
d0bfb22c QY |
2129 | { |
2130 | if (ERRNO_IO_RETRY(errno)) | |
2131 | { | |
2132 | vty_event (VTYSH_READ, sock, vty); | |
2133 | return 0; | |
2134 | } | |
2135 | vty->monitor = 0; /* disable monitoring to avoid infinite recursion */ | |
2136 | zlog_warn("%s: read failed on vtysh client fd %d, closing: %s", | |
2137 | __func__, sock, safe_strerror(errno)); | |
2138 | } | |
9fc7ebf1 | 2139 | buffer_reset(vty->obuf); |
718e3744 | 2140 | vty_close (vty); |
2141 | #ifdef VTYSH_DEBUG | |
2142 | printf ("close vtysh\n"); | |
2143 | #endif /* VTYSH_DEBUG */ | |
2144 | return 0; | |
2145 | } | |
2146 | ||
2147 | #ifdef VTYSH_DEBUG | |
9fc7ebf1 | 2148 | printf ("line: %.*s\n", nbytes, buf); |
718e3744 | 2149 | #endif /* VTYSH_DEBUG */ |
2150 | ||
9fc7ebf1 | 2151 | for (p = buf; p < buf+nbytes; p++) |
2152 | { | |
2153 | vty_ensure(vty, vty->length+1); | |
2154 | vty->buf[vty->length++] = *p; | |
2155 | if (*p == '\0') | |
d0bfb22c QY |
2156 | { |
2157 | /* Pass this line to parser. */ | |
2158 | ret = vty_execute (vty); | |
2159 | /* Note that vty_execute clears the command buffer and resets | |
2160 | vty->length to 0. */ | |
718e3744 | 2161 | |
d0bfb22c | 2162 | /* Return result. */ |
718e3744 | 2163 | #ifdef VTYSH_DEBUG |
d0bfb22c QY |
2164 | printf ("result: %d\n", ret); |
2165 | printf ("vtysh node: %d\n", vty->node); | |
718e3744 | 2166 | #endif /* VTYSH_DEBUG */ |
2167 | ||
95c4aff2 DL |
2168 | /* hack for asynchronous "write integrated" |
2169 | * - other commands in "buf" will be ditched | |
2170 | * - input during pending config-write is "unsupported" */ | |
2171 | if (ret == CMD_SUSPEND) | |
2172 | break; | |
2173 | ||
9473e340 | 2174 | /* warning: watchfrr hardcodes this result write */ |
9fc7ebf1 | 2175 | header[3] = ret; |
2176 | buffer_put(vty->obuf, header, 4); | |
2177 | ||
d0bfb22c QY |
2178 | if (!vty->t_write && (vtysh_flush(vty) < 0)) |
2179 | /* Try to flush results; exit if a write error occurs. */ | |
2180 | return 0; | |
2181 | } | |
9fc7ebf1 | 2182 | } |
718e3744 | 2183 | |
2184 | vty_event (VTYSH_READ, sock, vty); | |
2185 | ||
2186 | return 0; | |
2187 | } | |
49ff6d9d | 2188 | |
2189 | static int | |
2190 | vtysh_write (struct thread *thread) | |
2191 | { | |
2192 | struct vty *vty = THREAD_ARG (thread); | |
2193 | ||
2194 | vty->t_write = NULL; | |
9fc7ebf1 | 2195 | vtysh_flush(vty); |
976d8c73 | 2196 | return 0; |
49ff6d9d | 2197 | } |
2198 | ||
718e3744 | 2199 | #endif /* VTYSH */ |
2200 | ||
2201 | /* Determine address family to bind. */ | |
2202 | void | |
6ad96ea1 | 2203 | vty_serv_sock (const char *addr, unsigned short port, const char *path) |
718e3744 | 2204 | { |
2205 | /* If port is set to 0, do not listen on TCP/IP at all! */ | |
2206 | if (port) | |
56c1f7d8 | 2207 | vty_serv_sock_addrinfo (addr, port); |
718e3744 | 2208 | |
2209 | #ifdef VTYSH | |
2210 | vty_serv_un (path); | |
2211 | #endif /* VTYSH */ | |
2212 | } | |
2213 | ||
9d0a3260 AS |
2214 | /* Close vty interface. Warning: call this only from functions that |
2215 | will be careful not to access the vty afterwards (since it has | |
2216 | now been freed). This is safest from top-level functions (called | |
2217 | directly by the thread dispatcher). */ | |
718e3744 | 2218 | void |
2219 | vty_close (struct vty *vty) | |
2220 | { | |
2221 | int i; | |
2222 | ||
2223 | /* Cancel threads.*/ | |
2224 | if (vty->t_read) | |
2225 | thread_cancel (vty->t_read); | |
2226 | if (vty->t_write) | |
2227 | thread_cancel (vty->t_write); | |
2228 | if (vty->t_timeout) | |
2229 | thread_cancel (vty->t_timeout); | |
718e3744 | 2230 | |
2231 | /* Flush buffer. */ | |
c5e69a02 | 2232 | buffer_flush_all (vty->obuf, vty->wfd); |
718e3744 | 2233 | |
2234 | /* Free input buffer. */ | |
2235 | buffer_free (vty->obuf); | |
2236 | ||
718e3744 | 2237 | /* Free command history. */ |
2238 | for (i = 0; i < VTY_MAXHIST; i++) | |
2239 | if (vty->hist[i]) | |
2240 | XFREE (MTYPE_VTY_HIST, vty->hist[i]); | |
2241 | ||
2242 | /* Unset vector. */ | |
2243 | vector_unset (vtyvec, vty->fd); | |
2244 | ||
2245 | /* Close socket. */ | |
2246 | if (vty->fd > 0) | |
2247 | close (vty->fd); | |
b510a06e DL |
2248 | else |
2249 | vty_stdio_reset (); | |
718e3744 | 2250 | |
718e3744 | 2251 | if (vty->buf) |
2252 | XFREE (MTYPE_VTY, vty->buf); | |
2253 | ||
5689fe5f DW |
2254 | if (vty->error_buf) |
2255 | XFREE (MTYPE_VTY, vty->error_buf); | |
2256 | ||
718e3744 | 2257 | /* Check configure. */ |
2258 | vty_config_unlock (vty); | |
2259 | ||
2260 | /* OK free vty. */ | |
2261 | XFREE (MTYPE_VTY, vty); | |
2262 | } | |
2263 | ||
2264 | /* When time out occur output message then close connection. */ | |
2265 | static int | |
2266 | vty_timeout (struct thread *thread) | |
2267 | { | |
2268 | struct vty *vty; | |
2269 | ||
2270 | vty = THREAD_ARG (thread); | |
2271 | vty->t_timeout = NULL; | |
2272 | vty->v_timeout = 0; | |
2273 | ||
2274 | /* Clear buffer*/ | |
2275 | buffer_reset (vty->obuf); | |
2276 | vty_out (vty, "%sVty connection is timed out.%s", VTY_NEWLINE, VTY_NEWLINE); | |
2277 | ||
2278 | /* Close connection. */ | |
2279 | vty->status = VTY_CLOSE; | |
2280 | vty_close (vty); | |
2281 | ||
2282 | return 0; | |
2283 | } | |
2284 | ||
2285 | /* Read up configuration file from file_name. */ | |
2286 | static void | |
2287 | vty_read_file (FILE *confp) | |
2288 | { | |
2289 | int ret; | |
2290 | struct vty *vty; | |
13fbc82d | 2291 | unsigned int line_num = 0; |
718e3744 | 2292 | |
2293 | vty = vty_new (); | |
c5e69a02 DL |
2294 | vty->wfd = dup(STDERR_FILENO); /* vty_close() will close this */ |
2295 | if (vty->wfd < 0) | |
13fbc82d SH |
2296 | { |
2297 | /* Fine, we couldn't make a new fd. vty_close doesn't close stdout. */ | |
c5e69a02 | 2298 | vty->wfd = STDOUT_FILENO; |
13fbc82d | 2299 | } |
c5e69a02 | 2300 | vty->fd = STDIN_FILENO; |
13fbc82d | 2301 | vty->type = VTY_FILE; |
718e3744 | 2302 | vty->node = CONFIG_NODE; |
d0bfb22c | 2303 | |
718e3744 | 2304 | /* Execute configuration file */ |
13fbc82d SH |
2305 | ret = config_from_file (vty, confp, &line_num); |
2306 | ||
2307 | /* Flush any previous errors before printing messages below */ | |
2308 | buffer_flush_all (vty->obuf, vty->fd); | |
718e3744 | 2309 | |
d0bfb22c | 2310 | if ( !((ret == CMD_SUCCESS) || (ret == CMD_ERR_NOTHING_TODO)) ) |
718e3744 | 2311 | { |
cbd7259d | 2312 | const char *message = NULL; |
718e3744 | 2313 | switch (ret) |
7021c425 | 2314 | { |
2315 | case CMD_ERR_AMBIGUOUS: | |
cbd7259d | 2316 | message = "*** Error reading config: Ambiguous command."; |
7021c425 | 2317 | break; |
2318 | case CMD_ERR_NO_MATCH: | |
cbd7259d | 2319 | message = "*** Error reading config: There is no such command."; |
7021c425 | 2320 | break; |
2321 | } | |
cbd7259d QY |
2322 | fprintf (stderr, "%s\n", message); |
2323 | zlog_err ("%s", message); | |
2324 | fprintf (stderr, "*** Error occurred processing line %u, below:\n%s\n", | |
d0bfb22c | 2325 | line_num, vty->error_buf); |
cbd7259d QY |
2326 | zlog_err ("*** Error occurred processing line %u, below:\n%s", |
2327 | line_num, vty->error_buf); | |
718e3744 | 2328 | } |
2329 | ||
2330 | vty_close (vty); | |
2331 | } | |
2332 | ||
9fc7ebf1 | 2333 | static FILE * |
718e3744 | 2334 | vty_use_backup_config (char *fullpath) |
2335 | { | |
2336 | char *fullpath_sav, *fullpath_tmp; | |
2337 | FILE *ret = NULL; | |
2338 | struct stat buf; | |
2339 | int tmp, sav; | |
2340 | int c; | |
2341 | char buffer[512]; | |
d0bfb22c | 2342 | |
718e3744 | 2343 | fullpath_sav = malloc (strlen (fullpath) + strlen (CONF_BACKUP_EXT) + 1); |
2344 | strcpy (fullpath_sav, fullpath); | |
2345 | strcat (fullpath_sav, CONF_BACKUP_EXT); | |
2346 | if (stat (fullpath_sav, &buf) == -1) | |
2347 | { | |
2348 | free (fullpath_sav); | |
2349 | return NULL; | |
2350 | } | |
2351 | ||
2352 | fullpath_tmp = malloc (strlen (fullpath) + 8); | |
2353 | sprintf (fullpath_tmp, "%s.XXXXXX", fullpath); | |
d0bfb22c | 2354 | |
718e3744 | 2355 | /* Open file to configuration write. */ |
2356 | tmp = mkstemp (fullpath_tmp); | |
2357 | if (tmp < 0) | |
2358 | { | |
2359 | free (fullpath_sav); | |
2360 | free (fullpath_tmp); | |
2361 | return NULL; | |
2362 | } | |
2363 | ||
2364 | sav = open (fullpath_sav, O_RDONLY); | |
2365 | if (sav < 0) | |
2366 | { | |
3dbf9969 | 2367 | unlink (fullpath_tmp); |
718e3744 | 2368 | free (fullpath_sav); |
2369 | free (fullpath_tmp); | |
718e3744 | 2370 | return NULL; |
2371 | } | |
d0bfb22c | 2372 | |
718e3744 | 2373 | while((c = read (sav, buffer, 512)) > 0) |
77f24551 DS |
2374 | { |
2375 | if (write (tmp, buffer, c) <= 0) | |
d0bfb22c QY |
2376 | { |
2377 | free (fullpath_sav); | |
2378 | free (fullpath_tmp); | |
2379 | close (sav); | |
2380 | close (tmp); | |
2381 | return NULL; | |
2382 | } | |
77f24551 | 2383 | } |
718e3744 | 2384 | close (sav); |
2385 | close (tmp); | |
d0bfb22c | 2386 | |
aa593d5e | 2387 | if (chmod(fullpath_tmp, CONFIGFILE_MASK) != 0) |
2388 | { | |
3dbf9969 | 2389 | unlink (fullpath_tmp); |
aa593d5e | 2390 | free (fullpath_sav); |
2391 | free (fullpath_tmp); | |
aa593d5e | 2392 | return NULL; |
2393 | } | |
d0bfb22c | 2394 | |
718e3744 | 2395 | if (link (fullpath_tmp, fullpath) == 0) |
2396 | ret = fopen (fullpath, "r"); | |
2397 | ||
2398 | unlink (fullpath_tmp); | |
d0bfb22c | 2399 | |
718e3744 | 2400 | free (fullpath_sav); |
2401 | free (fullpath_tmp); | |
12f6ea23 | 2402 | return ret; |
718e3744 | 2403 | } |
2404 | ||
2405 | /* Read up configuration file from file_name. */ | |
2406 | void | |
2407 | vty_read_config (char *config_file, | |
320ec10a | 2408 | char *config_default_dir) |
718e3744 | 2409 | { |
ccc9235e | 2410 | char cwd[MAXPATHLEN]; |
718e3744 | 2411 | FILE *confp = NULL; |
2412 | char *fullpath; | |
05865c90 | 2413 | char *tmp = NULL; |
718e3744 | 2414 | |
2415 | /* If -f flag specified. */ | |
2416 | if (config_file != NULL) | |
2417 | { | |
2418 | if (! IS_DIRECTORY_SEP (config_file[0])) | |
320ec10a | 2419 | { |
77f24551 | 2420 | if (getcwd (cwd, MAXPATHLEN) == NULL) |
d0bfb22c QY |
2421 | { |
2422 | fprintf (stderr, "Failure to determine Current Working Directory %d!\n", errno); | |
2423 | exit (1); | |
2424 | } | |
2425 | tmp = XMALLOC (MTYPE_TMP, | |
2426 | strlen (cwd) + strlen (config_file) + 2); | |
05865c90 | 2427 | sprintf (tmp, "%s/%s", cwd, config_file); |
2428 | fullpath = tmp; | |
320ec10a | 2429 | } |
718e3744 | 2430 | else |
320ec10a | 2431 | fullpath = config_file; |
718e3744 | 2432 | |
2433 | confp = fopen (fullpath, "r"); | |
2434 | ||
2435 | if (confp == NULL) | |
320ec10a | 2436 | { |
3d1dc857 | 2437 | fprintf (stderr, "%s: failed to open configuration file %s: %s\n", |
2438 | __func__, fullpath, safe_strerror (errno)); | |
d0bfb22c | 2439 | |
320ec10a | 2440 | confp = vty_use_backup_config (fullpath); |
2441 | if (confp) | |
2442 | fprintf (stderr, "WARNING: using backup configuration file!\n"); | |
2443 | else | |
2444 | { | |
d0bfb22c QY |
2445 | fprintf (stderr, "can't open configuration file [%s]\n", |
2446 | config_file); | |
320ec10a | 2447 | exit(1); |
2448 | } | |
2449 | } | |
718e3744 | 2450 | } |
2451 | else | |
2452 | { | |
a7222276 | 2453 | |
e4421165 | 2454 | host_config_set (config_default_dir); |
a7222276 | 2455 | |
718e3744 | 2456 | #ifdef VTYSH |
320ec10a | 2457 | int ret; |
2458 | struct stat conf_stat; | |
2459 | ||
2460 | /* !!!!PLEASE LEAVE!!!! | |
2461 | * This is NEEDED for use with vtysh -b, or else you can get | |
2462 | * a real configuration food fight with a lot garbage in the | |
2463 | * merged configuration file it creates coming from the per | |
2464 | * daemon configuration files. This also allows the daemons | |
2465 | * to start if there default configuration file is not | |
2466 | * present or ignore them, as needed when using vtysh -b to | |
2467 | * configure the daemons at boot - MAG | |
2468 | */ | |
2469 | ||
2470 | /* Stat for vtysh Zebra.conf, if found startup and wait for | |
2471 | * boot configuration | |
2472 | */ | |
2473 | ||
2474 | if ( strstr(config_default_dir, "vtysh") == NULL) | |
2475 | { | |
2476 | ret = stat (integrate_default, &conf_stat); | |
2477 | if (ret >= 0) | |
d0bfb22c | 2478 | goto tmp_free_and_out; |
320ec10a | 2479 | } |
a7222276 | 2480 | #endif /* VTYSH */ |
e4421165 DS |
2481 | confp = fopen (config_default_dir, "r"); |
2482 | if (confp == NULL) | |
2483 | { | |
2484 | fprintf (stderr, "%s: failed to open configuration file %s: %s\n", | |
2485 | __func__, config_default_dir, safe_strerror (errno)); | |
d0bfb22c | 2486 | |
e4421165 DS |
2487 | confp = vty_use_backup_config (config_default_dir); |
2488 | if (confp) | |
2489 | { | |
2490 | fprintf (stderr, "WARNING: using backup configuration file!\n"); | |
2491 | fullpath = config_default_dir; | |
2492 | } | |
2493 | else | |
2494 | { | |
2495 | fprintf (stderr, "can't open configuration file [%s]\n", | |
d0bfb22c QY |
2496 | config_default_dir); |
2497 | goto tmp_free_and_out; | |
e4421165 | 2498 | } |
d0bfb22c | 2499 | } |
e4421165 DS |
2500 | else |
2501 | fullpath = config_default_dir; | |
2502 | } | |
2503 | ||
718e3744 | 2504 | vty_read_file (confp); |
2505 | ||
2506 | fclose (confp); | |
2507 | ||
2508 | host_config_set (fullpath); | |
6eda6425 DS |
2509 | |
2510 | tmp_free_and_out: | |
05865c90 | 2511 | if (tmp) |
2512 | XFREE (MTYPE_TMP, fullpath); | |
718e3744 | 2513 | } |
2514 | ||
2515 | /* Small utility function which output log to the VTY. */ | |
2516 | void | |
274a4a44 | 2517 | vty_log (const char *level, const char *proto_str, |
d0bfb22c | 2518 | const char *format, struct timestamp_control *ctl, va_list va) |
718e3744 | 2519 | { |
8c328f11 | 2520 | unsigned int i; |
718e3744 | 2521 | struct vty *vty; |
d0bfb22c | 2522 | |
a4b30303 PJ |
2523 | if (!vtyvec) |
2524 | return; | |
718e3744 | 2525 | |
55468c86 | 2526 | for (i = 0; i < vector_active (vtyvec); i++) |
718e3744 | 2527 | if ((vty = vector_slot (vtyvec, i)) != NULL) |
2528 | if (vty->monitor) | |
d0bfb22c QY |
2529 | { |
2530 | va_list ac; | |
2531 | va_copy(ac, va); | |
2532 | vty_log_out (vty, level, proto_str, format, ctl, ac); | |
2533 | va_end(ac); | |
2534 | } | |
718e3744 | 2535 | } |
2536 | ||
274a4a44 | 2537 | /* Async-signal-safe version of vty_log for fixed strings. */ |
2538 | void | |
24873f0c | 2539 | vty_log_fixed (char *buf, size_t len) |
274a4a44 | 2540 | { |
2541 | unsigned int i; | |
9fc7ebf1 | 2542 | struct iovec iov[2]; |
24873f0c | 2543 | char crlf[4] = "\r\n"; |
9fc7ebf1 | 2544 | |
a4b30303 PJ |
2545 | /* vty may not have been initialised */ |
2546 | if (!vtyvec) | |
2547 | return; | |
d0bfb22c | 2548 | |
1f9a9fff | 2549 | iov[0].iov_base = buf; |
9fc7ebf1 | 2550 | iov[0].iov_len = len; |
24873f0c | 2551 | iov[1].iov_base = crlf; |
9fc7ebf1 | 2552 | iov[1].iov_len = 2; |
274a4a44 | 2553 | |
55468c86 | 2554 | for (i = 0; i < vector_active (vtyvec); i++) |
274a4a44 | 2555 | { |
2556 | struct vty *vty; | |
9fc7ebf1 | 2557 | if (((vty = vector_slot (vtyvec, i)) != NULL) && vty->monitor) |
d0bfb22c QY |
2558 | /* N.B. We don't care about the return code, since process is |
2559 | most likely just about to die anyway. */ | |
2560 | if (writev(vty->wfd, iov, 2) == -1) | |
2561 | { | |
2562 | fprintf(stderr, "Failure to writev: %d\n", errno); | |
2563 | exit(-1); | |
2564 | } | |
274a4a44 | 2565 | } |
2566 | } | |
2567 | ||
718e3744 | 2568 | int |
2569 | vty_config_lock (struct vty *vty) | |
2570 | { | |
cc933ef9 DL |
2571 | if (vty_config_is_lockless) |
2572 | return 1; | |
718e3744 | 2573 | if (vty_config == 0) |
2574 | { | |
2575 | vty->config = 1; | |
2576 | vty_config = 1; | |
2577 | } | |
2578 | return vty->config; | |
2579 | } | |
2580 | ||
2581 | int | |
2582 | vty_config_unlock (struct vty *vty) | |
2583 | { | |
cc933ef9 DL |
2584 | if (vty_config_is_lockless) |
2585 | return 0; | |
718e3744 | 2586 | if (vty_config == 1 && vty->config == 1) |
2587 | { | |
2588 | vty->config = 0; | |
2589 | vty_config = 0; | |
2590 | } | |
2591 | return vty->config; | |
2592 | } | |
6b0655a2 | 2593 | |
cc933ef9 DL |
2594 | void |
2595 | vty_config_lockless (void) | |
2596 | { | |
2597 | vty_config_is_lockless = 1; | |
2598 | } | |
2599 | ||
718e3744 | 2600 | /* Master of the threads. */ |
79159516 | 2601 | static struct thread_master *vty_master; |
718e3744 | 2602 | |
2603 | static void | |
2604 | vty_event (enum event event, int sock, struct vty *vty) | |
2605 | { | |
2606 | struct thread *vty_serv_thread; | |
2607 | ||
2608 | switch (event) | |
2609 | { | |
2610 | case VTY_SERV: | |
79159516 | 2611 | vty_serv_thread = thread_add_read (vty_master, vty_accept, vty, sock); |
718e3744 | 2612 | vector_set_index (Vvty_serv_thread, sock, vty_serv_thread); |
2613 | break; | |
2614 | #ifdef VTYSH | |
2615 | case VTYSH_SERV: | |
79159516 | 2616 | vty_serv_thread = thread_add_read (vty_master, vtysh_accept, vty, sock); |
677bcbbf | 2617 | vector_set_index (Vvty_serv_thread, sock, vty_serv_thread); |
718e3744 | 2618 | break; |
2619 | case VTYSH_READ: | |
79159516 | 2620 | vty->t_read = thread_add_read (vty_master, vtysh_read, vty, sock); |
49ff6d9d | 2621 | break; |
2622 | case VTYSH_WRITE: | |
79159516 | 2623 | vty->t_write = thread_add_write (vty_master, vtysh_write, vty, sock); |
718e3744 | 2624 | break; |
2625 | #endif /* VTYSH */ | |
2626 | case VTY_READ: | |
79159516 | 2627 | vty->t_read = thread_add_read (vty_master, vty_read, vty, sock); |
718e3744 | 2628 | |
2629 | /* Time out treatment. */ | |
2630 | if (vty->v_timeout) | |
d0bfb22c QY |
2631 | { |
2632 | if (vty->t_timeout) | |
2633 | thread_cancel (vty->t_timeout); | |
2634 | vty->t_timeout = | |
2635 | thread_add_timer (vty_master, vty_timeout, vty, vty->v_timeout); | |
2636 | } | |
718e3744 | 2637 | break; |
2638 | case VTY_WRITE: | |
2639 | if (! vty->t_write) | |
d0bfb22c | 2640 | vty->t_write = thread_add_write (vty_master, vty_flush, vty, sock); |
718e3744 | 2641 | break; |
2642 | case VTY_TIMEOUT_RESET: | |
2643 | if (vty->t_timeout) | |
d0bfb22c QY |
2644 | { |
2645 | thread_cancel (vty->t_timeout); | |
2646 | vty->t_timeout = NULL; | |
2647 | } | |
718e3744 | 2648 | if (vty->v_timeout) |
d0bfb22c QY |
2649 | { |
2650 | vty->t_timeout = | |
2651 | thread_add_timer (vty_master, vty_timeout, vty, vty->v_timeout); | |
2652 | } | |
718e3744 | 2653 | break; |
2654 | } | |
2655 | } | |
6b0655a2 | 2656 | |
718e3744 | 2657 | DEFUN (config_who, |
2658 | config_who_cmd, | |
2659 | "who", | |
2660 | "Display who is on vty\n") | |
2661 | { | |
8c328f11 | 2662 | unsigned int i; |
718e3744 | 2663 | struct vty *v; |
2664 | ||
55468c86 | 2665 | for (i = 0; i < vector_active (vtyvec); i++) |
718e3744 | 2666 | if ((v = vector_slot (vtyvec, i)) != NULL) |
2667 | vty_out (vty, "%svty[%d] connected from %s.%s", | |
d0bfb22c QY |
2668 | v->config ? "*" : " ", |
2669 | i, v->address, VTY_NEWLINE); | |
718e3744 | 2670 | return CMD_SUCCESS; |
2671 | } | |
2672 | ||
2673 | /* Move to vty configuration mode. */ | |
2674 | DEFUN (line_vty, | |
2675 | line_vty_cmd, | |
2676 | "line vty", | |
2677 | "Configure a terminal line\n" | |
2678 | "Virtual terminal\n") | |
2679 | { | |
2680 | vty->node = VTY_NODE; | |
2681 | return CMD_SUCCESS; | |
2682 | } | |
2683 | ||
2684 | /* Set time out value. */ | |
9fc7ebf1 | 2685 | static int |
9035efaa | 2686 | exec_timeout (struct vty *vty, const char *min_str, const char *sec_str) |
718e3744 | 2687 | { |
2688 | unsigned long timeout = 0; | |
2689 | ||
2690 | /* min_str and sec_str are already checked by parser. So it must be | |
2691 | all digit string. */ | |
2692 | if (min_str) | |
2693 | { | |
2694 | timeout = strtol (min_str, NULL, 10); | |
2695 | timeout *= 60; | |
2696 | } | |
2697 | if (sec_str) | |
2698 | timeout += strtol (sec_str, NULL, 10); | |
2699 | ||
2700 | vty_timeout_val = timeout; | |
2701 | vty->v_timeout = timeout; | |
2702 | vty_event (VTY_TIMEOUT_RESET, 0, vty); | |
2703 | ||
2704 | ||
2705 | return CMD_SUCCESS; | |
2706 | } | |
2707 | ||
2708 | DEFUN (exec_timeout_min, | |
2709 | exec_timeout_min_cmd, | |
aa1c90a4 | 2710 | "exec-timeout (0-35791)", |
718e3744 | 2711 | "Set timeout value\n" |
2712 | "Timeout value in minutes\n") | |
2713 | { | |
c349116d DW |
2714 | int idx_number = 1; |
2715 | return exec_timeout (vty, argv[idx_number]->arg, NULL); | |
718e3744 | 2716 | } |
2717 | ||
2718 | DEFUN (exec_timeout_sec, | |
2719 | exec_timeout_sec_cmd, | |
aa1c90a4 | 2720 | "exec-timeout (0-35791) (0-2147483)", |
718e3744 | 2721 | "Set the EXEC timeout\n" |
2722 | "Timeout in minutes\n" | |
2723 | "Timeout in seconds\n") | |
2724 | { | |
c349116d DW |
2725 | int idx_number = 1; |
2726 | int idx_number_2 = 2; | |
2727 | return exec_timeout (vty, argv[idx_number]->arg, argv[idx_number_2]->arg); | |
718e3744 | 2728 | } |
2729 | ||
2730 | DEFUN (no_exec_timeout, | |
2731 | no_exec_timeout_cmd, | |
2732 | "no exec-timeout", | |
2733 | NO_STR | |
2734 | "Set the EXEC timeout\n") | |
2735 | { | |
2736 | return exec_timeout (vty, NULL, NULL); | |
2737 | } | |
2738 | ||
2739 | /* Set vty access class. */ | |
2740 | DEFUN (vty_access_class, | |
2741 | vty_access_class_cmd, | |
2742 | "access-class WORD", | |
2743 | "Filter connections based on an IP access list\n" | |
2744 | "IP access list\n") | |
2745 | { | |
c349116d | 2746 | int idx_word = 1; |
718e3744 | 2747 | if (vty_accesslist_name) |
2748 | XFREE(MTYPE_VTY, vty_accesslist_name); | |
2749 | ||
c349116d | 2750 | vty_accesslist_name = XSTRDUP(MTYPE_VTY, argv[idx_word]->arg); |
718e3744 | 2751 | |
2752 | return CMD_SUCCESS; | |
2753 | } | |
2754 | ||
2755 | /* Clear vty access class. */ | |
2756 | DEFUN (no_vty_access_class, | |
2757 | no_vty_access_class_cmd, | |
2758 | "no access-class [WORD]", | |
2759 | NO_STR | |
2760 | "Filter connections based on an IP access list\n" | |
2761 | "IP access list\n") | |
2762 | { | |
c349116d DW |
2763 | int idx_word = 2; |
2764 | const char *accesslist = (argc == 3) ? argv[idx_word]->arg : NULL; | |
abddf075 | 2765 | if (! vty_accesslist_name || (argc == 3 && strcmp(vty_accesslist_name, accesslist))) |
718e3744 | 2766 | { |
2767 | vty_out (vty, "Access-class is not currently applied to vty%s", | |
d0bfb22c | 2768 | VTY_NEWLINE); |
718e3744 | 2769 | return CMD_WARNING; |
2770 | } | |
2771 | ||
2772 | XFREE(MTYPE_VTY, vty_accesslist_name); | |
2773 | ||
2774 | vty_accesslist_name = NULL; | |
2775 | ||
2776 | return CMD_SUCCESS; | |
2777 | } | |
2778 | ||
718e3744 | 2779 | /* Set vty access class. */ |
2780 | DEFUN (vty_ipv6_access_class, | |
2781 | vty_ipv6_access_class_cmd, | |
2782 | "ipv6 access-class WORD", | |
2783 | IPV6_STR | |
2784 | "Filter connections based on an IP access list\n" | |
2785 | "IPv6 access list\n") | |
2786 | { | |
c349116d | 2787 | int idx_word = 2; |
718e3744 | 2788 | if (vty_ipv6_accesslist_name) |
2789 | XFREE(MTYPE_VTY, vty_ipv6_accesslist_name); | |
2790 | ||
c349116d | 2791 | vty_ipv6_accesslist_name = XSTRDUP(MTYPE_VTY, argv[idx_word]->arg); |
718e3744 | 2792 | |
2793 | return CMD_SUCCESS; | |
2794 | } | |
2795 | ||
2796 | /* Clear vty access class. */ | |
2797 | DEFUN (no_vty_ipv6_access_class, | |
2798 | no_vty_ipv6_access_class_cmd, | |
2799 | "no ipv6 access-class [WORD]", | |
2800 | NO_STR | |
2801 | IPV6_STR | |
2802 | "Filter connections based on an IP access list\n" | |
2803 | "IPv6 access list\n") | |
2804 | { | |
c349116d DW |
2805 | int idx_word = 3; |
2806 | const char *accesslist = (argc == 4) ? argv[idx_word]->arg : NULL; | |
aa1c90a4 | 2807 | |
718e3744 | 2808 | if (! vty_ipv6_accesslist_name || |
abddf075 | 2809 | (argc == 4 && strcmp(vty_ipv6_accesslist_name, accesslist))) |
718e3744 | 2810 | { |
2811 | vty_out (vty, "IPv6 access-class is not currently applied to vty%s", | |
d0bfb22c | 2812 | VTY_NEWLINE); |
718e3744 | 2813 | return CMD_WARNING; |
2814 | } | |
2815 | ||
2816 | XFREE(MTYPE_VTY, vty_ipv6_accesslist_name); | |
2817 | ||
2818 | vty_ipv6_accesslist_name = NULL; | |
2819 | ||
2820 | return CMD_SUCCESS; | |
2821 | } | |
718e3744 | 2822 | |
2823 | /* vty login. */ | |
2824 | DEFUN (vty_login, | |
2825 | vty_login_cmd, | |
2826 | "login", | |
2827 | "Enable password checking\n") | |
2828 | { | |
2829 | no_password_check = 0; | |
2830 | return CMD_SUCCESS; | |
2831 | } | |
2832 | ||
2833 | DEFUN (no_vty_login, | |
2834 | no_vty_login_cmd, | |
2835 | "no login", | |
2836 | NO_STR | |
2837 | "Enable password checking\n") | |
2838 | { | |
2839 | no_password_check = 1; | |
2840 | return CMD_SUCCESS; | |
2841 | } | |
2842 | ||
2843 | DEFUN (service_advanced_vty, | |
2844 | service_advanced_vty_cmd, | |
2845 | "service advanced-vty", | |
2846 | "Set up miscellaneous service\n" | |
2847 | "Enable advanced mode vty interface\n") | |
2848 | { | |
2849 | host.advanced = 1; | |
2850 | return CMD_SUCCESS; | |
2851 | } | |
2852 | ||
2853 | DEFUN (no_service_advanced_vty, | |
2854 | no_service_advanced_vty_cmd, | |
2855 | "no service advanced-vty", | |
2856 | NO_STR | |
2857 | "Set up miscellaneous service\n" | |
2858 | "Enable advanced mode vty interface\n") | |
2859 | { | |
2860 | host.advanced = 0; | |
2861 | return CMD_SUCCESS; | |
2862 | } | |
2863 | ||
2864 | DEFUN (terminal_monitor, | |
2865 | terminal_monitor_cmd, | |
2866 | "terminal monitor", | |
2867 | "Set terminal line parameters\n" | |
2868 | "Copy debug output to the current terminal line\n") | |
2869 | { | |
2870 | vty->monitor = 1; | |
2871 | return CMD_SUCCESS; | |
2872 | } | |
2873 | ||
2874 | DEFUN (terminal_no_monitor, | |
2875 | terminal_no_monitor_cmd, | |
2876 | "terminal no monitor", | |
2877 | "Set terminal line parameters\n" | |
2878 | NO_STR | |
2879 | "Copy debug output to the current terminal line\n") | |
2880 | { | |
2881 | vty->monitor = 0; | |
2882 | return CMD_SUCCESS; | |
2883 | } | |
2884 | ||
f667a580 | 2885 | DEFUN (no_terminal_monitor, |
789f78ac | 2886 | no_terminal_monitor_cmd, |
2887 | "no terminal monitor", | |
2888 | NO_STR | |
2889 | "Set terminal line parameters\n" | |
2890 | "Copy debug output to the current terminal line\n") | |
f667a580 QY |
2891 | { |
2892 | return terminal_no_monitor (self, vty, argc, argv); | |
2893 | } | |
2894 | ||
789f78ac | 2895 | |
718e3744 | 2896 | DEFUN (show_history, |
2897 | show_history_cmd, | |
2898 | "show history", | |
2899 | SHOW_STR | |
2900 | "Display the session command history\n") | |
2901 | { | |
2902 | int index; | |
2903 | ||
2904 | for (index = vty->hindex + 1; index != vty->hindex;) | |
2905 | { | |
2906 | if (index == VTY_MAXHIST) | |
d0bfb22c QY |
2907 | { |
2908 | index = 0; | |
2909 | continue; | |
2910 | } | |
718e3744 | 2911 | |
2912 | if (vty->hist[index] != NULL) | |
d0bfb22c | 2913 | vty_out (vty, " %s%s", vty->hist[index], VTY_NEWLINE); |
718e3744 | 2914 | |
2915 | index++; | |
2916 | } | |
2917 | ||
2918 | return CMD_SUCCESS; | |
2919 | } | |
2920 | ||
da688ecd LB |
2921 | /* vty login. */ |
2922 | DEFUN (log_commands, | |
2923 | log_commands_cmd, | |
2924 | "log commands", | |
2925 | "Logging control\n" | |
2926 | "Log all commands (can't be unset without restart)\n") | |
2927 | { | |
2928 | do_log_commands = 1; | |
2929 | return CMD_SUCCESS; | |
2930 | } | |
2931 | ||
718e3744 | 2932 | /* Display current configuration. */ |
9fc7ebf1 | 2933 | static int |
718e3744 | 2934 | vty_config_write (struct vty *vty) |
2935 | { | |
2936 | vty_out (vty, "line vty%s", VTY_NEWLINE); | |
2937 | ||
2938 | if (vty_accesslist_name) | |
2939 | vty_out (vty, " access-class %s%s", | |
d0bfb22c | 2940 | vty_accesslist_name, VTY_NEWLINE); |
718e3744 | 2941 | |
2942 | if (vty_ipv6_accesslist_name) | |
2943 | vty_out (vty, " ipv6 access-class %s%s", | |
d0bfb22c | 2944 | vty_ipv6_accesslist_name, VTY_NEWLINE); |
718e3744 | 2945 | |
2946 | /* exec-timeout */ | |
2947 | if (vty_timeout_val != VTY_TIMEOUT_DEFAULT) | |
d0bfb22c QY |
2948 | vty_out (vty, " exec-timeout %ld %ld%s", |
2949 | vty_timeout_val / 60, | |
2950 | vty_timeout_val % 60, VTY_NEWLINE); | |
718e3744 | 2951 | |
2952 | /* login */ | |
2953 | if (no_password_check) | |
2954 | vty_out (vty, " no login%s", VTY_NEWLINE); | |
da688ecd LB |
2955 | |
2956 | if (do_log_commands) | |
2957 | vty_out (vty, "log commands%s", VTY_NEWLINE); | |
d0bfb22c | 2958 | |
718e3744 | 2959 | vty_out (vty, "!%s", VTY_NEWLINE); |
2960 | ||
2961 | return CMD_SUCCESS; | |
2962 | } | |
2963 | ||
2964 | struct cmd_node vty_node = | |
2965 | { | |
2966 | VTY_NODE, | |
2967 | "%s(config-line)# ", | |
e7168df4 | 2968 | 1, |
718e3744 | 2969 | }; |
2970 | ||
2971 | /* Reset all VTY status. */ | |
2972 | void | |
2973 | vty_reset () | |
2974 | { | |
8c328f11 | 2975 | unsigned int i; |
718e3744 | 2976 | struct vty *vty; |
2977 | struct thread *vty_serv_thread; | |
2978 | ||
55468c86 | 2979 | for (i = 0; i < vector_active (vtyvec); i++) |
718e3744 | 2980 | if ((vty = vector_slot (vtyvec, i)) != NULL) |
2981 | { | |
d0bfb22c QY |
2982 | buffer_reset (vty->obuf); |
2983 | vty->status = VTY_CLOSE; | |
2984 | vty_close (vty); | |
718e3744 | 2985 | } |
2986 | ||
55468c86 | 2987 | for (i = 0; i < vector_active (Vvty_serv_thread); i++) |
718e3744 | 2988 | if ((vty_serv_thread = vector_slot (Vvty_serv_thread, i)) != NULL) |
2989 | { | |
d0bfb22c QY |
2990 | thread_cancel (vty_serv_thread); |
2991 | vector_slot (Vvty_serv_thread, i) = NULL; | |
718e3744 | 2992 | close (i); |
2993 | } | |
2994 | ||
2995 | vty_timeout_val = VTY_TIMEOUT_DEFAULT; | |
2996 | ||
2997 | if (vty_accesslist_name) | |
2998 | { | |
2999 | XFREE(MTYPE_VTY, vty_accesslist_name); | |
3000 | vty_accesslist_name = NULL; | |
3001 | } | |
3002 | ||
3003 | if (vty_ipv6_accesslist_name) | |
3004 | { | |
3005 | XFREE(MTYPE_VTY, vty_ipv6_accesslist_name); | |
3006 | vty_ipv6_accesslist_name = NULL; | |
3007 | } | |
3008 | } | |
3009 | ||
9fc7ebf1 | 3010 | static void |
3011 | vty_save_cwd (void) | |
718e3744 | 3012 | { |
79ad2798 | 3013 | char cwd[MAXPATHLEN]; |
ccc9235e | 3014 | char *c; |
79ad2798 | 3015 | |
ccc9235e | 3016 | c = getcwd (cwd, MAXPATHLEN); |
718e3744 | 3017 | |
ccc9235e | 3018 | if (!c) |
79ad2798 | 3019 | { |
77f24551 DS |
3020 | /* |
3021 | * At this point if these go wrong, more than likely | |
3022 | * the whole world is coming down around us | |
3023 | * Hence not worrying about it too much. | |
3024 | */ | |
3025 | if (!chdir (SYSCONFDIR)) | |
d0bfb22c QY |
3026 | { |
3027 | fprintf(stderr, "Failure to chdir to %s, errno: %d\n", SYSCONFDIR, errno); | |
3028 | exit(-1); | |
3029 | } | |
77f24551 | 3030 | if (getcwd (cwd, MAXPATHLEN) == NULL) |
d0bfb22c QY |
3031 | { |
3032 | fprintf(stderr, "Failure to getcwd, errno: %d\n", errno); | |
3033 | exit(-1); | |
3034 | } | |
79ad2798 | 3035 | } |
718e3744 | 3036 | |
3037 | vty_cwd = XMALLOC (MTYPE_TMP, strlen (cwd) + 1); | |
3038 | strcpy (vty_cwd, cwd); | |
3039 | } | |
3040 | ||
3041 | char * | |
3042 | vty_get_cwd () | |
3043 | { | |
3044 | return vty_cwd; | |
3045 | } | |
3046 | ||
3047 | int | |
3048 | vty_shell (struct vty *vty) | |
3049 | { | |
3050 | return vty->type == VTY_SHELL ? 1 : 0; | |
3051 | } | |
3052 | ||
3053 | int | |
3054 | vty_shell_serv (struct vty *vty) | |
3055 | { | |
3056 | return vty->type == VTY_SHELL_SERV ? 1 : 0; | |
3057 | } | |
3058 | ||
3059 | void | |
3060 | vty_init_vtysh () | |
3061 | { | |
3062 | vtyvec = vector_init (VECTOR_MIN_SIZE); | |
3063 | } | |
3064 | ||
3065 | /* Install vty's own commands like `who' command. */ | |
3066 | void | |
b21b19c5 | 3067 | vty_init (struct thread_master *master_thread) |
718e3744 | 3068 | { |
3069 | /* For further configuration read, preserve current directory. */ | |
3070 | vty_save_cwd (); | |
3071 | ||
3072 | vtyvec = vector_init (VECTOR_MIN_SIZE); | |
3073 | ||
79159516 | 3074 | vty_master = master_thread; |
b21b19c5 | 3075 | |
b510a06e DL |
3076 | atexit (vty_stdio_reset); |
3077 | ||
718e3744 | 3078 | /* Initilize server thread vector. */ |
3079 | Vvty_serv_thread = vector_init (VECTOR_MIN_SIZE); | |
3080 | ||
3081 | /* Install bgp top node. */ | |
3082 | install_node (&vty_node, vty_config_write); | |
3083 | ||
3084 | install_element (VIEW_NODE, &config_who_cmd); | |
3085 | install_element (VIEW_NODE, &show_history_cmd); | |
718e3744 | 3086 | install_element (CONFIG_NODE, &line_vty_cmd); |
3087 | install_element (CONFIG_NODE, &service_advanced_vty_cmd); | |
3088 | install_element (CONFIG_NODE, &no_service_advanced_vty_cmd); | |
3089 | install_element (CONFIG_NODE, &show_history_cmd); | |
da688ecd | 3090 | install_element (CONFIG_NODE, &log_commands_cmd); |
718e3744 | 3091 | install_element (ENABLE_NODE, &terminal_monitor_cmd); |
3092 | install_element (ENABLE_NODE, &terminal_no_monitor_cmd); | |
789f78ac | 3093 | install_element (ENABLE_NODE, &no_terminal_monitor_cmd); |
718e3744 | 3094 | |
3095 | install_default (VTY_NODE); | |
3096 | install_element (VTY_NODE, &exec_timeout_min_cmd); | |
3097 | install_element (VTY_NODE, &exec_timeout_sec_cmd); | |
3098 | install_element (VTY_NODE, &no_exec_timeout_cmd); | |
3099 | install_element (VTY_NODE, &vty_access_class_cmd); | |
3100 | install_element (VTY_NODE, &no_vty_access_class_cmd); | |
3101 | install_element (VTY_NODE, &vty_login_cmd); | |
3102 | install_element (VTY_NODE, &no_vty_login_cmd); | |
718e3744 | 3103 | install_element (VTY_NODE, &vty_ipv6_access_class_cmd); |
3104 | install_element (VTY_NODE, &no_vty_ipv6_access_class_cmd); | |
718e3744 | 3105 | } |
228da428 CC |
3106 | |
3107 | void | |
3108 | vty_terminate (void) | |
3109 | { | |
3110 | if (vty_cwd) | |
3111 | XFREE (MTYPE_TMP, vty_cwd); | |
3112 | ||
3113 | if (vtyvec && Vvty_serv_thread) | |
3114 | { | |
3115 | vty_reset (); | |
3116 | vector_free (vtyvec); | |
3117 | vector_free (Vvty_serv_thread); | |
3118 | } | |
3119 | } | |
eac6e3f0 RW |
3120 | |
3121 | /* Utility functions to get arguments from commands generated | |
3122 | by the xml2cli.pl script. */ | |
3123 | const char * | |
3124 | vty_get_arg_value (struct vty_arg *args[], const char *arg) | |
3125 | { | |
3126 | while (*args) | |
3127 | { | |
3128 | if (strcmp ((*args)->name, arg) == 0) | |
3129 | return (*args)->value; | |
3130 | args++; | |
3131 | } | |
3132 | return NULL; | |
3133 | } | |
3134 | ||
3135 | struct vty_arg * | |
3136 | vty_get_arg (struct vty_arg *args[], const char *arg) | |
3137 | { | |
3138 | while (*args) | |
3139 | { | |
3140 | if (strcmp ((*args)->name, arg) == 0) | |
3141 | return *args; | |
3142 | args++; | |
3143 | } | |
3144 | return NULL; | |
3145 | } |