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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 | |
20 | * 02111-1307, USA. | |
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" |
32 | #include "str.h" | |
33 | #include "log.h" | |
34 | #include "prefix.h" | |
35 | #include "filter.h" | |
b21b19c5 | 36 | #include "vty.h" |
edd7c245 | 37 | #include "privs.h" |
718e3744 | 38 | |
39 | /* Vty events */ | |
40 | enum event | |
41 | { | |
42 | VTY_SERV, | |
43 | VTY_READ, | |
44 | VTY_WRITE, | |
45 | VTY_TIMEOUT_RESET, | |
46 | #ifdef VTYSH | |
47 | VTYSH_SERV, | |
49ff6d9d | 48 | VTYSH_READ, |
49 | VTYSH_WRITE | |
718e3744 | 50 | #endif /* VTYSH */ |
51 | }; | |
52 | ||
49ff6d9d | 53 | /* Minimum size of output buffers; to be rounded up to multiple of pagesize. */ |
54 | #define VTY_OBUF_SIZE 4096 | |
55 | ||
718e3744 | 56 | static void vty_event (enum event, int, struct vty *); |
57 | ||
58 | /* Extern host structure from command.c */ | |
59 | extern struct host host; | |
60 | \f | |
61 | /* Vector which store each vty structure. */ | |
62 | static vector vtyvec; | |
63 | ||
64 | /* Vty timeout value. */ | |
65 | static unsigned long vty_timeout_val = VTY_TIMEOUT_DEFAULT; | |
66 | ||
67 | /* Vty access-class command */ | |
68 | static char *vty_accesslist_name = NULL; | |
69 | ||
70 | /* Vty access-calss for IPv6. */ | |
71 | static char *vty_ipv6_accesslist_name = NULL; | |
72 | ||
73 | /* VTY server thread. */ | |
74 | vector Vvty_serv_thread; | |
75 | ||
76 | /* Current directory. */ | |
77 | char *vty_cwd = NULL; | |
78 | ||
79 | /* Configure lock. */ | |
80 | static int vty_config; | |
81 | ||
82 | /* Login password check. */ | |
83 | static int no_password_check = 0; | |
84 | ||
85 | /* Integrated configuration file path */ | |
86 | char integrate_default[] = SYSCONFDIR INTEGRATE_DEFAULT_CONFIG; | |
87 | ||
88 | \f | |
89 | /* VTY standard output function. */ | |
90 | int | |
91 | vty_out (struct vty *vty, const char *format, ...) | |
92 | { | |
93 | va_list args; | |
94 | int len = 0; | |
95 | int size = 1024; | |
96 | char buf[1024]; | |
97 | char *p = NULL; | |
98 | ||
99 | va_start (args, format); | |
100 | ||
101 | if (vty_shell (vty)) | |
102 | vprintf (format, args); | |
103 | else | |
104 | { | |
105 | /* Try to write to initial buffer. */ | |
106 | len = vsnprintf (buf, sizeof buf, format, args); | |
107 | ||
108 | /* Initial buffer is not enough. */ | |
109 | if (len < 0 || len >= size) | |
110 | { | |
111 | while (1) | |
112 | { | |
113 | if (len > -1) | |
114 | size = len + 1; | |
115 | else | |
116 | size = size * 2; | |
117 | ||
118 | p = XREALLOC (MTYPE_VTY_OUT_BUF, p, size); | |
119 | if (! p) | |
120 | return -1; | |
121 | ||
122 | len = vsnprintf (p, size, format, args); | |
123 | ||
124 | if (len > -1 && len < size) | |
125 | break; | |
126 | } | |
127 | } | |
128 | ||
129 | /* When initial buffer is enough to store all output. */ | |
130 | if (! p) | |
131 | p = buf; | |
132 | ||
133 | /* Pointer p must point out buffer. */ | |
49ff6d9d | 134 | buffer_write (vty->obuf, (u_char *) p, len); |
718e3744 | 135 | |
136 | /* If p is not different with buf, it is allocated buffer. */ | |
137 | if (p != buf) | |
138 | XFREE (MTYPE_VTY_OUT_BUF, p); | |
139 | } | |
140 | ||
141 | va_end (args); | |
142 | ||
143 | return len; | |
144 | } | |
145 | ||
146 | int | |
147 | vty_log_out (struct vty *vty, const char *proto_str, const char *format, | |
148 | va_list va) | |
149 | { | |
150 | int len; | |
151 | char buf[1024]; | |
152 | ||
153 | snprintf (buf, sizeof buf, "%s: ", proto_str); | |
154 | write (vty->fd, buf, strlen (proto_str) + 2); | |
155 | ||
156 | len = vsnprintf (buf, sizeof buf, format, va); | |
157 | if (len < 0) | |
158 | return -1; | |
159 | write (vty->fd, (u_char *)buf, len); | |
160 | ||
161 | snprintf (buf, sizeof buf, "\r\n"); | |
162 | write (vty->fd, buf, 2); | |
163 | ||
164 | return len; | |
165 | } | |
166 | ||
167 | /* Output current time to the vty. */ | |
168 | void | |
169 | vty_time_print (struct vty *vty, int cr) | |
170 | { | |
171 | time_t clock; | |
172 | struct tm *tm; | |
173 | #define TIME_BUF 25 | |
174 | char buf [TIME_BUF]; | |
175 | int ret; | |
176 | ||
177 | time (&clock); | |
178 | tm = localtime (&clock); | |
179 | ||
180 | ret = strftime (buf, TIME_BUF, "%Y/%m/%d %H:%M:%S", tm); | |
181 | if (ret == 0) | |
182 | { | |
183 | zlog (NULL, LOG_INFO, "strftime error"); | |
184 | return; | |
185 | } | |
186 | if (cr) | |
187 | vty_out (vty, "%s\n", buf); | |
188 | else | |
189 | vty_out (vty, "%s ", buf); | |
190 | ||
191 | return; | |
192 | } | |
193 | ||
194 | /* Say hello to vty interface. */ | |
195 | void | |
196 | vty_hello (struct vty *vty) | |
197 | { | |
198 | if (host.motd) | |
199 | vty_out (vty, host.motd); | |
200 | } | |
201 | ||
202 | /* Put out prompt and wait input from user. */ | |
203 | static void | |
204 | vty_prompt (struct vty *vty) | |
205 | { | |
206 | struct utsname names; | |
207 | const char*hostname; | |
208 | ||
209 | if (vty->type == VTY_TERM) | |
210 | { | |
211 | hostname = host.name; | |
212 | if (!hostname) | |
213 | { | |
214 | uname (&names); | |
215 | hostname = names.nodename; | |
216 | } | |
217 | vty_out (vty, cmd_prompt (vty->node), hostname); | |
218 | } | |
219 | } | |
220 | ||
221 | /* Send WILL TELOPT_ECHO to remote server. */ | |
222 | void | |
223 | vty_will_echo (struct vty *vty) | |
224 | { | |
02ff83c5 | 225 | unsigned char cmd[] = { IAC, WILL, TELOPT_ECHO, '\0' }; |
718e3744 | 226 | vty_out (vty, "%s", cmd); |
227 | } | |
228 | ||
229 | /* Make suppress Go-Ahead telnet option. */ | |
230 | static void | |
231 | vty_will_suppress_go_ahead (struct vty *vty) | |
232 | { | |
02ff83c5 | 233 | unsigned char cmd[] = { IAC, WILL, TELOPT_SGA, '\0' }; |
718e3744 | 234 | vty_out (vty, "%s", cmd); |
235 | } | |
236 | ||
237 | /* Make don't use linemode over telnet. */ | |
238 | static void | |
239 | vty_dont_linemode (struct vty *vty) | |
240 | { | |
02ff83c5 | 241 | unsigned char cmd[] = { IAC, DONT, TELOPT_LINEMODE, '\0' }; |
718e3744 | 242 | vty_out (vty, "%s", cmd); |
243 | } | |
244 | ||
245 | /* Use window size. */ | |
246 | static void | |
247 | vty_do_window_size (struct vty *vty) | |
248 | { | |
02ff83c5 | 249 | unsigned char cmd[] = { IAC, DO, TELOPT_NAWS, '\0' }; |
718e3744 | 250 | vty_out (vty, "%s", cmd); |
251 | } | |
252 | ||
253 | #if 0 /* Currently not used. */ | |
254 | /* Make don't use lflow vty interface. */ | |
255 | static void | |
256 | vty_dont_lflow_ahead (struct vty *vty) | |
257 | { | |
02ff83c5 | 258 | unsigned char cmd[] = { IAC, DONT, TELOPT_LFLOW, '\0' }; |
718e3744 | 259 | vty_out (vty, "%s", cmd); |
260 | } | |
261 | #endif /* 0 */ | |
262 | ||
263 | /* Allocate new vty struct. */ | |
264 | struct vty * | |
265 | vty_new () | |
266 | { | |
267 | struct vty *new = XCALLOC (MTYPE_VTY, sizeof (struct vty)); | |
49ff6d9d | 268 | int pgsz = getpagesize(); |
718e3744 | 269 | |
49ff6d9d | 270 | new->obuf = (struct buffer *) buffer_new ((((VTY_OBUF_SIZE-1)/pgsz)+1)*pgsz); |
718e3744 | 271 | new->buf = XCALLOC (MTYPE_VTY, VTY_BUFSIZ); |
272 | new->max = VTY_BUFSIZ; | |
273 | new->sb_buffer = NULL; | |
274 | ||
275 | return new; | |
276 | } | |
277 | ||
278 | /* Authentication of vty */ | |
279 | static void | |
280 | vty_auth (struct vty *vty, char *buf) | |
281 | { | |
282 | char *passwd = NULL; | |
283 | enum node_type next_node = 0; | |
284 | int fail; | |
285 | char *crypt (const char *, const char *); | |
286 | ||
287 | switch (vty->node) | |
288 | { | |
289 | case AUTH_NODE: | |
290 | if (host.encrypt) | |
291 | passwd = host.password_encrypt; | |
292 | else | |
293 | passwd = host.password; | |
294 | if (host.advanced) | |
295 | next_node = host.enable ? VIEW_NODE : ENABLE_NODE; | |
296 | else | |
297 | next_node = VIEW_NODE; | |
298 | break; | |
299 | case AUTH_ENABLE_NODE: | |
300 | if (host.encrypt) | |
301 | passwd = host.enable_encrypt; | |
302 | else | |
303 | passwd = host.enable; | |
304 | next_node = ENABLE_NODE; | |
305 | break; | |
306 | } | |
307 | ||
308 | if (passwd) | |
309 | { | |
310 | if (host.encrypt) | |
311 | fail = strcmp (crypt(buf, passwd), passwd); | |
312 | else | |
313 | fail = strcmp (buf, passwd); | |
314 | } | |
315 | else | |
316 | fail = 1; | |
317 | ||
318 | if (! fail) | |
319 | { | |
320 | vty->fail = 0; | |
321 | vty->node = next_node; /* Success ! */ | |
322 | } | |
323 | else | |
324 | { | |
325 | vty->fail++; | |
326 | if (vty->fail >= 3) | |
327 | { | |
328 | if (vty->node == AUTH_NODE) | |
329 | { | |
330 | vty_out (vty, "%% Bad passwords, too many failures!%s", VTY_NEWLINE); | |
331 | vty->status = VTY_CLOSE; | |
332 | } | |
333 | else | |
334 | { | |
335 | /* AUTH_ENABLE_NODE */ | |
336 | vty->fail = 0; | |
337 | vty_out (vty, "%% Bad enable passwords, too many failures!%s", VTY_NEWLINE); | |
338 | vty->node = VIEW_NODE; | |
339 | } | |
340 | } | |
341 | } | |
342 | } | |
343 | ||
344 | /* Command execution over the vty interface. */ | |
345 | int | |
346 | vty_command (struct vty *vty, char *buf) | |
347 | { | |
348 | int ret; | |
349 | vector vline; | |
350 | ||
351 | /* Split readline string up into the vector */ | |
352 | vline = cmd_make_strvec (buf); | |
353 | ||
354 | if (vline == NULL) | |
355 | return CMD_SUCCESS; | |
356 | ||
357 | ret = cmd_execute_command (vline, vty, NULL); | |
358 | ||
359 | if (ret != CMD_SUCCESS) | |
360 | switch (ret) | |
361 | { | |
362 | case CMD_WARNING: | |
363 | if (vty->type == VTY_FILE) | |
364 | vty_out (vty, "Warning...%s", VTY_NEWLINE); | |
365 | break; | |
366 | case CMD_ERR_AMBIGUOUS: | |
367 | vty_out (vty, "%% Ambiguous command.%s", VTY_NEWLINE); | |
368 | break; | |
369 | case CMD_ERR_NO_MATCH: | |
370 | vty_out (vty, "%% Unknown command.%s", VTY_NEWLINE); | |
371 | break; | |
372 | case CMD_ERR_INCOMPLETE: | |
373 | vty_out (vty, "%% Command incomplete.%s", VTY_NEWLINE); | |
374 | break; | |
375 | } | |
376 | cmd_free_strvec (vline); | |
377 | ||
378 | return ret; | |
379 | } | |
380 | \f | |
381 | char telnet_backward_char = 0x08; | |
382 | char telnet_space_char = ' '; | |
383 | ||
384 | /* Basic function to write buffer to vty. */ | |
385 | static void | |
386 | vty_write (struct vty *vty, char *buf, size_t nbytes) | |
387 | { | |
388 | if ((vty->node == AUTH_NODE) || (vty->node == AUTH_ENABLE_NODE)) | |
389 | return; | |
390 | ||
391 | /* Should we do buffering here ? And make vty_flush (vty) ? */ | |
392 | buffer_write (vty->obuf, (u_char *)buf, nbytes); | |
393 | } | |
394 | ||
395 | /* Ensure length of input buffer. Is buffer is short, double it. */ | |
396 | static void | |
397 | vty_ensure (struct vty *vty, int length) | |
398 | { | |
399 | if (vty->max <= length) | |
400 | { | |
401 | vty->max *= 2; | |
402 | vty->buf = XREALLOC (MTYPE_VTY, vty->buf, vty->max); | |
403 | } | |
404 | } | |
405 | ||
406 | /* Basic function to insert character into vty. */ | |
407 | static void | |
408 | vty_self_insert (struct vty *vty, char c) | |
409 | { | |
410 | int i; | |
411 | int length; | |
412 | ||
413 | vty_ensure (vty, vty->length + 1); | |
414 | length = vty->length - vty->cp; | |
415 | memmove (&vty->buf[vty->cp + 1], &vty->buf[vty->cp], length); | |
416 | vty->buf[vty->cp] = c; | |
417 | ||
418 | vty_write (vty, &vty->buf[vty->cp], length + 1); | |
419 | for (i = 0; i < length; i++) | |
420 | vty_write (vty, &telnet_backward_char, 1); | |
421 | ||
422 | vty->cp++; | |
423 | vty->length++; | |
424 | } | |
425 | ||
426 | /* Self insert character 'c' in overwrite mode. */ | |
427 | static void | |
428 | vty_self_insert_overwrite (struct vty *vty, char c) | |
429 | { | |
430 | vty_ensure (vty, vty->length + 1); | |
431 | vty->buf[vty->cp++] = c; | |
432 | ||
433 | if (vty->cp > vty->length) | |
434 | vty->length++; | |
435 | ||
436 | if ((vty->node == AUTH_NODE) || (vty->node == AUTH_ENABLE_NODE)) | |
437 | return; | |
438 | ||
439 | vty_write (vty, &c, 1); | |
440 | } | |
441 | ||
442 | /* Insert a word into vty interface with overwrite mode. */ | |
443 | static void | |
444 | vty_insert_word_overwrite (struct vty *vty, char *str) | |
445 | { | |
446 | int len = strlen (str); | |
447 | vty_write (vty, str, len); | |
448 | strcpy (&vty->buf[vty->cp], str); | |
449 | vty->cp += len; | |
450 | vty->length = vty->cp; | |
451 | } | |
452 | ||
453 | /* Forward character. */ | |
454 | static void | |
455 | vty_forward_char (struct vty *vty) | |
456 | { | |
457 | if (vty->cp < vty->length) | |
458 | { | |
459 | vty_write (vty, &vty->buf[vty->cp], 1); | |
460 | vty->cp++; | |
461 | } | |
462 | } | |
463 | ||
464 | /* Backward character. */ | |
465 | static void | |
466 | vty_backward_char (struct vty *vty) | |
467 | { | |
468 | if (vty->cp > 0) | |
469 | { | |
470 | vty->cp--; | |
471 | vty_write (vty, &telnet_backward_char, 1); | |
472 | } | |
473 | } | |
474 | ||
475 | /* Move to the beginning of the line. */ | |
476 | static void | |
477 | vty_beginning_of_line (struct vty *vty) | |
478 | { | |
479 | while (vty->cp) | |
480 | vty_backward_char (vty); | |
481 | } | |
482 | ||
483 | /* Move to the end of the line. */ | |
484 | static void | |
485 | vty_end_of_line (struct vty *vty) | |
486 | { | |
487 | while (vty->cp < vty->length) | |
488 | vty_forward_char (vty); | |
489 | } | |
490 | ||
491 | static void vty_kill_line_from_beginning (struct vty *); | |
492 | static void vty_redraw_line (struct vty *); | |
493 | ||
494 | /* Print command line history. This function is called from | |
495 | vty_next_line and vty_previous_line. */ | |
496 | static void | |
497 | vty_history_print (struct vty *vty) | |
498 | { | |
499 | int length; | |
500 | ||
501 | vty_kill_line_from_beginning (vty); | |
502 | ||
503 | /* Get previous line from history buffer */ | |
504 | length = strlen (vty->hist[vty->hp]); | |
505 | memcpy (vty->buf, vty->hist[vty->hp], length); | |
506 | vty->cp = vty->length = length; | |
507 | ||
508 | /* Redraw current line */ | |
509 | vty_redraw_line (vty); | |
510 | } | |
511 | ||
512 | /* Show next command line history. */ | |
513 | void | |
514 | vty_next_line (struct vty *vty) | |
515 | { | |
516 | int try_index; | |
517 | ||
518 | if (vty->hp == vty->hindex) | |
519 | return; | |
520 | ||
521 | /* Try is there history exist or not. */ | |
522 | try_index = vty->hp; | |
523 | if (try_index == (VTY_MAXHIST - 1)) | |
524 | try_index = 0; | |
525 | else | |
526 | try_index++; | |
527 | ||
528 | /* If there is not history return. */ | |
529 | if (vty->hist[try_index] == NULL) | |
530 | return; | |
531 | else | |
532 | vty->hp = try_index; | |
533 | ||
534 | vty_history_print (vty); | |
535 | } | |
536 | ||
537 | /* Show previous command line history. */ | |
538 | void | |
539 | vty_previous_line (struct vty *vty) | |
540 | { | |
541 | int try_index; | |
542 | ||
543 | try_index = vty->hp; | |
544 | if (try_index == 0) | |
545 | try_index = VTY_MAXHIST - 1; | |
546 | else | |
547 | try_index--; | |
548 | ||
549 | if (vty->hist[try_index] == NULL) | |
550 | return; | |
551 | else | |
552 | vty->hp = try_index; | |
553 | ||
554 | vty_history_print (vty); | |
555 | } | |
556 | ||
557 | /* This function redraw all of the command line character. */ | |
558 | static void | |
559 | vty_redraw_line (struct vty *vty) | |
560 | { | |
561 | vty_write (vty, vty->buf, vty->length); | |
562 | vty->cp = vty->length; | |
563 | } | |
564 | ||
565 | /* Forward word. */ | |
566 | static void | |
567 | vty_forward_word (struct vty *vty) | |
568 | { | |
569 | while (vty->cp != vty->length && vty->buf[vty->cp] != ' ') | |
570 | vty_forward_char (vty); | |
571 | ||
572 | while (vty->cp != vty->length && vty->buf[vty->cp] == ' ') | |
573 | vty_forward_char (vty); | |
574 | } | |
575 | ||
576 | /* Backward word without skipping training space. */ | |
577 | static void | |
578 | vty_backward_pure_word (struct vty *vty) | |
579 | { | |
580 | while (vty->cp > 0 && vty->buf[vty->cp - 1] != ' ') | |
581 | vty_backward_char (vty); | |
582 | } | |
583 | ||
584 | /* Backward word. */ | |
585 | static void | |
586 | vty_backward_word (struct vty *vty) | |
587 | { | |
588 | while (vty->cp > 0 && vty->buf[vty->cp - 1] == ' ') | |
589 | vty_backward_char (vty); | |
590 | ||
591 | while (vty->cp > 0 && vty->buf[vty->cp - 1] != ' ') | |
592 | vty_backward_char (vty); | |
593 | } | |
594 | ||
595 | /* When '^D' is typed at the beginning of the line we move to the down | |
596 | level. */ | |
597 | static void | |
598 | vty_down_level (struct vty *vty) | |
599 | { | |
600 | vty_out (vty, "%s", VTY_NEWLINE); | |
601 | config_exit (NULL, vty, 0, NULL); | |
602 | vty_prompt (vty); | |
603 | vty->cp = 0; | |
604 | } | |
605 | ||
606 | /* When '^Z' is received from vty, move down to the enable mode. */ | |
607 | void | |
608 | vty_end_config (struct vty *vty) | |
609 | { | |
610 | vty_out (vty, "%s", VTY_NEWLINE); | |
611 | ||
612 | switch (vty->node) | |
613 | { | |
614 | case VIEW_NODE: | |
615 | case ENABLE_NODE: | |
616 | /* Nothing to do. */ | |
617 | break; | |
618 | case CONFIG_NODE: | |
619 | case INTERFACE_NODE: | |
620 | case ZEBRA_NODE: | |
621 | case RIP_NODE: | |
622 | case RIPNG_NODE: | |
623 | case BGP_NODE: | |
624 | case BGP_VPNV4_NODE: | |
625 | case BGP_IPV4_NODE: | |
626 | case BGP_IPV4M_NODE: | |
627 | case BGP_IPV6_NODE: | |
628 | case RMAP_NODE: | |
629 | case OSPF_NODE: | |
630 | case OSPF6_NODE: | |
9e867fe6 | 631 | case ISIS_NODE: |
718e3744 | 632 | case KEYCHAIN_NODE: |
633 | case KEYCHAIN_KEY_NODE: | |
634 | case MASC_NODE: | |
635 | case VTY_NODE: | |
636 | vty_config_unlock (vty); | |
637 | vty->node = ENABLE_NODE; | |
638 | break; | |
639 | default: | |
640 | /* Unknown node, we have to ignore it. */ | |
641 | break; | |
642 | } | |
643 | ||
644 | vty_prompt (vty); | |
645 | vty->cp = 0; | |
646 | } | |
647 | ||
648 | /* Delete a charcter at the current point. */ | |
649 | static void | |
650 | vty_delete_char (struct vty *vty) | |
651 | { | |
652 | int i; | |
653 | int size; | |
654 | ||
655 | if (vty->node == AUTH_NODE || vty->node == AUTH_ENABLE_NODE) | |
656 | return; | |
657 | ||
658 | if (vty->length == 0) | |
659 | { | |
660 | vty_down_level (vty); | |
661 | return; | |
662 | } | |
663 | ||
664 | if (vty->cp == vty->length) | |
665 | return; /* completion need here? */ | |
666 | ||
667 | size = vty->length - vty->cp; | |
668 | ||
669 | vty->length--; | |
670 | memmove (&vty->buf[vty->cp], &vty->buf[vty->cp + 1], size - 1); | |
671 | vty->buf[vty->length] = '\0'; | |
672 | ||
673 | vty_write (vty, &vty->buf[vty->cp], size - 1); | |
674 | vty_write (vty, &telnet_space_char, 1); | |
675 | ||
676 | for (i = 0; i < size; i++) | |
677 | vty_write (vty, &telnet_backward_char, 1); | |
678 | } | |
679 | ||
680 | /* Delete a character before the point. */ | |
681 | static void | |
682 | vty_delete_backward_char (struct vty *vty) | |
683 | { | |
684 | if (vty->cp == 0) | |
685 | return; | |
686 | ||
687 | vty_backward_char (vty); | |
688 | vty_delete_char (vty); | |
689 | } | |
690 | ||
691 | /* Kill rest of line from current point. */ | |
692 | static void | |
693 | vty_kill_line (struct vty *vty) | |
694 | { | |
695 | int i; | |
696 | int size; | |
697 | ||
698 | size = vty->length - vty->cp; | |
699 | ||
700 | if (size == 0) | |
701 | return; | |
702 | ||
703 | for (i = 0; i < size; i++) | |
704 | vty_write (vty, &telnet_space_char, 1); | |
705 | for (i = 0; i < size; i++) | |
706 | vty_write (vty, &telnet_backward_char, 1); | |
707 | ||
708 | memset (&vty->buf[vty->cp], 0, size); | |
709 | vty->length = vty->cp; | |
710 | } | |
711 | ||
712 | /* Kill line from the beginning. */ | |
713 | static void | |
714 | vty_kill_line_from_beginning (struct vty *vty) | |
715 | { | |
716 | vty_beginning_of_line (vty); | |
717 | vty_kill_line (vty); | |
718 | } | |
719 | ||
720 | /* Delete a word before the point. */ | |
721 | static void | |
722 | vty_forward_kill_word (struct vty *vty) | |
723 | { | |
724 | while (vty->cp != vty->length && vty->buf[vty->cp] == ' ') | |
725 | vty_delete_char (vty); | |
726 | while (vty->cp != vty->length && vty->buf[vty->cp] != ' ') | |
727 | vty_delete_char (vty); | |
728 | } | |
729 | ||
730 | /* Delete a word before the point. */ | |
731 | static void | |
732 | vty_backward_kill_word (struct vty *vty) | |
733 | { | |
734 | while (vty->cp > 0 && vty->buf[vty->cp - 1] == ' ') | |
735 | vty_delete_backward_char (vty); | |
736 | while (vty->cp > 0 && vty->buf[vty->cp - 1] != ' ') | |
737 | vty_delete_backward_char (vty); | |
738 | } | |
739 | ||
740 | /* Transpose chars before or at the point. */ | |
741 | static void | |
742 | vty_transpose_chars (struct vty *vty) | |
743 | { | |
744 | char c1, c2; | |
745 | ||
746 | /* If length is short or point is near by the beginning of line then | |
747 | return. */ | |
748 | if (vty->length < 2 || vty->cp < 1) | |
749 | return; | |
750 | ||
751 | /* In case of point is located at the end of the line. */ | |
752 | if (vty->cp == vty->length) | |
753 | { | |
754 | c1 = vty->buf[vty->cp - 1]; | |
755 | c2 = vty->buf[vty->cp - 2]; | |
756 | ||
757 | vty_backward_char (vty); | |
758 | vty_backward_char (vty); | |
759 | vty_self_insert_overwrite (vty, c1); | |
760 | vty_self_insert_overwrite (vty, c2); | |
761 | } | |
762 | else | |
763 | { | |
764 | c1 = vty->buf[vty->cp]; | |
765 | c2 = vty->buf[vty->cp - 1]; | |
766 | ||
767 | vty_backward_char (vty); | |
768 | vty_self_insert_overwrite (vty, c1); | |
769 | vty_self_insert_overwrite (vty, c2); | |
770 | } | |
771 | } | |
772 | ||
773 | /* Do completion at vty interface. */ | |
774 | static void | |
775 | vty_complete_command (struct vty *vty) | |
776 | { | |
777 | int i; | |
778 | int ret; | |
779 | char **matched = NULL; | |
780 | vector vline; | |
781 | ||
782 | if (vty->node == AUTH_NODE || vty->node == AUTH_ENABLE_NODE) | |
783 | return; | |
784 | ||
785 | vline = cmd_make_strvec (vty->buf); | |
786 | if (vline == NULL) | |
787 | return; | |
788 | ||
789 | /* In case of 'help \t'. */ | |
790 | if (isspace ((int) vty->buf[vty->length - 1])) | |
791 | vector_set (vline, '\0'); | |
792 | ||
793 | matched = cmd_complete_command (vline, vty, &ret); | |
794 | ||
795 | cmd_free_strvec (vline); | |
796 | ||
797 | vty_out (vty, "%s", VTY_NEWLINE); | |
798 | switch (ret) | |
799 | { | |
800 | case CMD_ERR_AMBIGUOUS: | |
801 | vty_out (vty, "%% Ambiguous command.%s", VTY_NEWLINE); | |
802 | vty_prompt (vty); | |
803 | vty_redraw_line (vty); | |
804 | break; | |
805 | case CMD_ERR_NO_MATCH: | |
806 | /* vty_out (vty, "%% There is no matched command.%s", VTY_NEWLINE); */ | |
807 | vty_prompt (vty); | |
808 | vty_redraw_line (vty); | |
809 | break; | |
810 | case CMD_COMPLETE_FULL_MATCH: | |
811 | vty_prompt (vty); | |
812 | vty_redraw_line (vty); | |
813 | vty_backward_pure_word (vty); | |
814 | vty_insert_word_overwrite (vty, matched[0]); | |
815 | vty_self_insert (vty, ' '); | |
816 | XFREE (MTYPE_TMP, matched[0]); | |
817 | break; | |
818 | case CMD_COMPLETE_MATCH: | |
819 | vty_prompt (vty); | |
820 | vty_redraw_line (vty); | |
821 | vty_backward_pure_word (vty); | |
822 | vty_insert_word_overwrite (vty, matched[0]); | |
823 | XFREE (MTYPE_TMP, matched[0]); | |
824 | vector_only_index_free (matched); | |
825 | return; | |
826 | break; | |
827 | case CMD_COMPLETE_LIST_MATCH: | |
828 | for (i = 0; matched[i] != NULL; i++) | |
829 | { | |
830 | if (i != 0 && ((i % 6) == 0)) | |
831 | vty_out (vty, "%s", VTY_NEWLINE); | |
832 | vty_out (vty, "%-10s ", matched[i]); | |
833 | XFREE (MTYPE_TMP, matched[i]); | |
834 | } | |
835 | vty_out (vty, "%s", VTY_NEWLINE); | |
836 | ||
837 | vty_prompt (vty); | |
838 | vty_redraw_line (vty); | |
839 | break; | |
840 | case CMD_ERR_NOTHING_TODO: | |
841 | vty_prompt (vty); | |
842 | vty_redraw_line (vty); | |
843 | break; | |
844 | default: | |
845 | break; | |
846 | } | |
847 | if (matched) | |
848 | vector_only_index_free (matched); | |
849 | } | |
850 | ||
851 | void | |
852 | vty_describe_fold (struct vty *vty, int cmd_width, | |
8c328f11 | 853 | unsigned int desc_width, struct desc *desc) |
718e3744 | 854 | { |
8c328f11 | 855 | char *buf; |
856 | const char *cmd, *p; | |
718e3744 | 857 | int pos; |
858 | ||
859 | cmd = desc->cmd[0] == '.' ? desc->cmd + 1 : desc->cmd; | |
860 | ||
861 | if (desc_width <= 0) | |
862 | { | |
863 | vty_out (vty, " %-*s %s%s", cmd_width, cmd, desc->str, VTY_NEWLINE); | |
864 | return; | |
865 | } | |
866 | ||
867 | buf = XCALLOC (MTYPE_TMP, strlen (desc->str) + 1); | |
868 | ||
869 | for (p = desc->str; strlen (p) > desc_width; p += pos + 1) | |
870 | { | |
871 | for (pos = desc_width; pos > 0; pos--) | |
872 | if (*(p + pos) == ' ') | |
873 | break; | |
874 | ||
875 | if (pos == 0) | |
876 | break; | |
877 | ||
878 | strncpy (buf, p, pos); | |
879 | buf[pos] = '\0'; | |
880 | vty_out (vty, " %-*s %s%s", cmd_width, cmd, buf, VTY_NEWLINE); | |
881 | ||
882 | cmd = ""; | |
883 | } | |
884 | ||
885 | vty_out (vty, " %-*s %s%s", cmd_width, cmd, p, VTY_NEWLINE); | |
886 | ||
887 | XFREE (MTYPE_TMP, buf); | |
888 | } | |
889 | ||
890 | /* Describe matched command function. */ | |
891 | static void | |
892 | vty_describe_command (struct vty *vty) | |
893 | { | |
894 | int ret; | |
895 | vector vline; | |
896 | vector describe; | |
8c328f11 | 897 | unsigned int i, width, desc_width; |
718e3744 | 898 | struct desc *desc, *desc_cr = NULL; |
899 | ||
900 | vline = cmd_make_strvec (vty->buf); | |
901 | ||
902 | /* In case of '> ?'. */ | |
903 | if (vline == NULL) | |
904 | { | |
905 | vline = vector_init (1); | |
906 | vector_set (vline, '\0'); | |
907 | } | |
908 | else | |
909 | if (isspace ((int) vty->buf[vty->length - 1])) | |
910 | vector_set (vline, '\0'); | |
911 | ||
912 | describe = cmd_describe_command (vline, vty, &ret); | |
913 | ||
914 | vty_out (vty, "%s", VTY_NEWLINE); | |
915 | ||
916 | /* Ambiguous error. */ | |
917 | switch (ret) | |
918 | { | |
919 | case CMD_ERR_AMBIGUOUS: | |
920 | cmd_free_strvec (vline); | |
921 | vty_out (vty, "%% Ambiguous command.%s", VTY_NEWLINE); | |
922 | vty_prompt (vty); | |
923 | vty_redraw_line (vty); | |
924 | return; | |
925 | break; | |
926 | case CMD_ERR_NO_MATCH: | |
927 | cmd_free_strvec (vline); | |
928 | vty_out (vty, "%% There is no matched command.%s", VTY_NEWLINE); | |
929 | vty_prompt (vty); | |
930 | vty_redraw_line (vty); | |
931 | return; | |
932 | break; | |
933 | } | |
934 | ||
935 | /* Get width of command string. */ | |
936 | width = 0; | |
937 | for (i = 0; i < vector_max (describe); i++) | |
938 | if ((desc = vector_slot (describe, i)) != NULL) | |
939 | { | |
8c328f11 | 940 | unsigned int len; |
718e3744 | 941 | |
942 | if (desc->cmd[0] == '\0') | |
943 | continue; | |
944 | ||
945 | len = strlen (desc->cmd); | |
946 | if (desc->cmd[0] == '.') | |
947 | len--; | |
948 | ||
949 | if (width < len) | |
950 | width = len; | |
951 | } | |
952 | ||
953 | /* Get width of description string. */ | |
954 | desc_width = vty->width - (width + 6); | |
955 | ||
956 | /* Print out description. */ | |
957 | for (i = 0; i < vector_max (describe); i++) | |
958 | if ((desc = vector_slot (describe, i)) != NULL) | |
959 | { | |
960 | if (desc->cmd[0] == '\0') | |
961 | continue; | |
962 | ||
963 | if (strcmp (desc->cmd, "<cr>") == 0) | |
964 | { | |
965 | desc_cr = desc; | |
966 | continue; | |
967 | } | |
968 | ||
969 | if (!desc->str) | |
970 | vty_out (vty, " %-s%s", | |
971 | desc->cmd[0] == '.' ? desc->cmd + 1 : desc->cmd, | |
972 | VTY_NEWLINE); | |
973 | else if (desc_width >= strlen (desc->str)) | |
974 | vty_out (vty, " %-*s %s%s", width, | |
975 | desc->cmd[0] == '.' ? desc->cmd + 1 : desc->cmd, | |
976 | desc->str, VTY_NEWLINE); | |
977 | else | |
978 | vty_describe_fold (vty, width, desc_width, desc); | |
979 | ||
980 | #if 0 | |
981 | vty_out (vty, " %-*s %s%s", width | |
982 | desc->cmd[0] == '.' ? desc->cmd + 1 : desc->cmd, | |
983 | desc->str ? desc->str : "", VTY_NEWLINE); | |
984 | #endif /* 0 */ | |
985 | } | |
986 | ||
987 | if ((desc = desc_cr)) | |
988 | { | |
989 | if (!desc->str) | |
990 | vty_out (vty, " %-s%s", | |
991 | desc->cmd[0] == '.' ? desc->cmd + 1 : desc->cmd, | |
992 | VTY_NEWLINE); | |
993 | else if (desc_width >= strlen (desc->str)) | |
994 | vty_out (vty, " %-*s %s%s", width, | |
995 | desc->cmd[0] == '.' ? desc->cmd + 1 : desc->cmd, | |
996 | desc->str, VTY_NEWLINE); | |
997 | else | |
998 | vty_describe_fold (vty, width, desc_width, desc); | |
999 | } | |
1000 | ||
1001 | cmd_free_strvec (vline); | |
1002 | vector_free (describe); | |
1003 | ||
1004 | vty_prompt (vty); | |
1005 | vty_redraw_line (vty); | |
1006 | } | |
1007 | ||
1008 | void | |
1009 | vty_clear_buf (struct vty *vty) | |
1010 | { | |
1011 | memset (vty->buf, 0, vty->max); | |
1012 | } | |
1013 | ||
1014 | /* ^C stop current input and do not add command line to the history. */ | |
1015 | static void | |
1016 | vty_stop_input (struct vty *vty) | |
1017 | { | |
1018 | vty->cp = vty->length = 0; | |
1019 | vty_clear_buf (vty); | |
1020 | vty_out (vty, "%s", VTY_NEWLINE); | |
1021 | ||
1022 | switch (vty->node) | |
1023 | { | |
1024 | case VIEW_NODE: | |
1025 | case ENABLE_NODE: | |
1026 | /* Nothing to do. */ | |
1027 | break; | |
1028 | case CONFIG_NODE: | |
1029 | case INTERFACE_NODE: | |
1030 | case ZEBRA_NODE: | |
1031 | case RIP_NODE: | |
1032 | case RIPNG_NODE: | |
1033 | case BGP_NODE: | |
1034 | case RMAP_NODE: | |
1035 | case OSPF_NODE: | |
1036 | case OSPF6_NODE: | |
9e867fe6 | 1037 | case ISIS_NODE: |
718e3744 | 1038 | case KEYCHAIN_NODE: |
1039 | case KEYCHAIN_KEY_NODE: | |
1040 | case MASC_NODE: | |
1041 | case VTY_NODE: | |
1042 | vty_config_unlock (vty); | |
1043 | vty->node = ENABLE_NODE; | |
1044 | break; | |
1045 | default: | |
1046 | /* Unknown node, we have to ignore it. */ | |
1047 | break; | |
1048 | } | |
1049 | vty_prompt (vty); | |
1050 | ||
1051 | /* Set history pointer to the latest one. */ | |
1052 | vty->hp = vty->hindex; | |
1053 | } | |
1054 | ||
1055 | /* Add current command line to the history buffer. */ | |
1056 | static void | |
1057 | vty_hist_add (struct vty *vty) | |
1058 | { | |
1059 | int index; | |
1060 | ||
1061 | if (vty->length == 0) | |
1062 | return; | |
1063 | ||
1064 | index = vty->hindex ? vty->hindex - 1 : VTY_MAXHIST - 1; | |
1065 | ||
1066 | /* Ignore the same string as previous one. */ | |
1067 | if (vty->hist[index]) | |
1068 | if (strcmp (vty->buf, vty->hist[index]) == 0) | |
1069 | { | |
1070 | vty->hp = vty->hindex; | |
1071 | return; | |
1072 | } | |
1073 | ||
1074 | /* Insert history entry. */ | |
1075 | if (vty->hist[vty->hindex]) | |
1076 | XFREE (MTYPE_VTY_HIST, vty->hist[vty->hindex]); | |
1077 | vty->hist[vty->hindex] = XSTRDUP (MTYPE_VTY_HIST, vty->buf); | |
1078 | ||
1079 | /* History index rotation. */ | |
1080 | vty->hindex++; | |
1081 | if (vty->hindex == VTY_MAXHIST) | |
1082 | vty->hindex = 0; | |
1083 | ||
1084 | vty->hp = vty->hindex; | |
1085 | } | |
1086 | ||
1087 | /* #define TELNET_OPTION_DEBUG */ | |
1088 | ||
1089 | /* Get telnet window size. */ | |
1090 | static int | |
1091 | vty_telnet_option (struct vty *vty, unsigned char *buf, int nbytes) | |
1092 | { | |
1093 | #ifdef TELNET_OPTION_DEBUG | |
1094 | int i; | |
1095 | ||
1096 | for (i = 0; i < nbytes; i++) | |
1097 | { | |
1098 | switch (buf[i]) | |
1099 | { | |
1100 | case IAC: | |
1101 | vty_out (vty, "IAC "); | |
1102 | break; | |
1103 | case WILL: | |
1104 | vty_out (vty, "WILL "); | |
1105 | break; | |
1106 | case WONT: | |
1107 | vty_out (vty, "WONT "); | |
1108 | break; | |
1109 | case DO: | |
1110 | vty_out (vty, "DO "); | |
1111 | break; | |
1112 | case DONT: | |
1113 | vty_out (vty, "DONT "); | |
1114 | break; | |
1115 | case SB: | |
1116 | vty_out (vty, "SB "); | |
1117 | break; | |
1118 | case SE: | |
1119 | vty_out (vty, "SE "); | |
1120 | break; | |
1121 | case TELOPT_ECHO: | |
1122 | vty_out (vty, "TELOPT_ECHO %s", VTY_NEWLINE); | |
1123 | break; | |
1124 | case TELOPT_SGA: | |
1125 | vty_out (vty, "TELOPT_SGA %s", VTY_NEWLINE); | |
1126 | break; | |
1127 | case TELOPT_NAWS: | |
1128 | vty_out (vty, "TELOPT_NAWS %s", VTY_NEWLINE); | |
1129 | break; | |
1130 | default: | |
1131 | vty_out (vty, "%x ", buf[i]); | |
1132 | break; | |
1133 | } | |
1134 | } | |
1135 | vty_out (vty, "%s", VTY_NEWLINE); | |
1136 | ||
1137 | #endif /* TELNET_OPTION_DEBUG */ | |
1138 | ||
1139 | switch (buf[0]) | |
1140 | { | |
1141 | case SB: | |
1142 | buffer_reset(vty->sb_buffer); | |
1143 | vty->iac_sb_in_progress = 1; | |
1144 | return 0; | |
1145 | break; | |
1146 | case SE: | |
1147 | { | |
5b8c1b0d | 1148 | char *buffer; |
1149 | int length; | |
718e3744 | 1150 | |
5b8c1b0d | 1151 | if (!vty->iac_sb_in_progress) |
718e3744 | 1152 | return 0; |
1153 | ||
5b8c1b0d | 1154 | buffer = (char *)vty->sb_buffer->head->data; |
1155 | length = vty->sb_buffer->length; | |
1156 | ||
1157 | if (buffer == NULL) | |
718e3744 | 1158 | return 0; |
1159 | ||
1160 | if (buffer[0] == '\0') | |
1161 | { | |
1162 | vty->iac_sb_in_progress = 0; | |
1163 | return 0; | |
1164 | } | |
1165 | switch (buffer[0]) | |
1166 | { | |
1167 | case TELOPT_NAWS: | |
1168 | if (length < 5) | |
1169 | break; | |
1170 | vty->width = buffer[2]; | |
1171 | vty->height = vty->lines >= 0 ? vty->lines : buffer[4]; | |
1172 | break; | |
1173 | } | |
1174 | vty->iac_sb_in_progress = 0; | |
1175 | return 0; | |
1176 | break; | |
1177 | } | |
1178 | default: | |
1179 | break; | |
1180 | } | |
1181 | return 1; | |
1182 | } | |
1183 | ||
1184 | /* Execute current command line. */ | |
1185 | static int | |
1186 | vty_execute (struct vty *vty) | |
1187 | { | |
1188 | int ret; | |
1189 | ||
1190 | ret = CMD_SUCCESS; | |
1191 | ||
1192 | switch (vty->node) | |
1193 | { | |
1194 | case AUTH_NODE: | |
1195 | case AUTH_ENABLE_NODE: | |
1196 | vty_auth (vty, vty->buf); | |
1197 | break; | |
1198 | default: | |
1199 | ret = vty_command (vty, vty->buf); | |
1200 | if (vty->type == VTY_TERM) | |
1201 | vty_hist_add (vty); | |
1202 | break; | |
1203 | } | |
1204 | ||
1205 | /* Clear command line buffer. */ | |
1206 | vty->cp = vty->length = 0; | |
1207 | vty_clear_buf (vty); | |
1208 | ||
5a646650 | 1209 | if (vty->status != VTY_CLOSE ) |
718e3744 | 1210 | vty_prompt (vty); |
1211 | ||
1212 | return ret; | |
1213 | } | |
1214 | ||
1215 | #define CONTROL(X) ((X) - '@') | |
1216 | #define VTY_NORMAL 0 | |
1217 | #define VTY_PRE_ESCAPE 1 | |
1218 | #define VTY_ESCAPE 2 | |
1219 | ||
1220 | /* Escape character command map. */ | |
1221 | static void | |
1222 | vty_escape_map (unsigned char c, struct vty *vty) | |
1223 | { | |
1224 | switch (c) | |
1225 | { | |
1226 | case ('A'): | |
1227 | vty_previous_line (vty); | |
1228 | break; | |
1229 | case ('B'): | |
1230 | vty_next_line (vty); | |
1231 | break; | |
1232 | case ('C'): | |
1233 | vty_forward_char (vty); | |
1234 | break; | |
1235 | case ('D'): | |
1236 | vty_backward_char (vty); | |
1237 | break; | |
1238 | default: | |
1239 | break; | |
1240 | } | |
1241 | ||
1242 | /* Go back to normal mode. */ | |
1243 | vty->escape = VTY_NORMAL; | |
1244 | } | |
1245 | ||
1246 | /* Quit print out to the buffer. */ | |
1247 | static void | |
1248 | vty_buffer_reset (struct vty *vty) | |
1249 | { | |
1250 | buffer_reset (vty->obuf); | |
1251 | vty_prompt (vty); | |
1252 | vty_redraw_line (vty); | |
1253 | } | |
1254 | ||
1255 | /* Read data via vty socket. */ | |
1256 | static int | |
1257 | vty_read (struct thread *thread) | |
1258 | { | |
1259 | int i; | |
718e3744 | 1260 | int nbytes; |
1261 | unsigned char buf[VTY_READ_BUFSIZ]; | |
1262 | ||
1263 | int vty_sock = THREAD_FD (thread); | |
1264 | struct vty *vty = THREAD_ARG (thread); | |
1265 | vty->t_read = NULL; | |
1266 | ||
1267 | /* Read raw data from socket */ | |
1268 | nbytes = read (vty->fd, buf, VTY_READ_BUFSIZ); | |
1269 | if (nbytes <= 0) | |
1270 | vty->status = VTY_CLOSE; | |
1271 | ||
1272 | for (i = 0; i < nbytes; i++) | |
1273 | { | |
1274 | if (buf[i] == IAC) | |
1275 | { | |
1276 | if (!vty->iac) | |
1277 | { | |
1278 | vty->iac = 1; | |
1279 | continue; | |
1280 | } | |
1281 | else | |
1282 | { | |
1283 | vty->iac = 0; | |
1284 | } | |
1285 | } | |
1286 | ||
1287 | if (vty->iac_sb_in_progress && !vty->iac) | |
1288 | { | |
1289 | buffer_putc(vty->sb_buffer, buf[i]); | |
1290 | continue; | |
1291 | } | |
1292 | ||
1293 | if (vty->iac) | |
1294 | { | |
1295 | /* In case of telnet command */ | |
5b8c1b0d | 1296 | int ret = 0; |
e937253b | 1297 | ret = vty_telnet_option (vty, buf + i, nbytes - i); |
718e3744 | 1298 | vty->iac = 0; |
1299 | i += ret; | |
1300 | continue; | |
1301 | } | |
5b8c1b0d | 1302 | |
718e3744 | 1303 | |
1304 | if (vty->status == VTY_MORE) | |
1305 | { | |
1306 | switch (buf[i]) | |
1307 | { | |
1308 | case CONTROL('C'): | |
1309 | case 'q': | |
1310 | case 'Q': | |
718e3744 | 1311 | vty_buffer_reset (vty); |
1312 | break; | |
1313 | #if 0 /* More line does not work for "show ip bgp". */ | |
1314 | case '\n': | |
1315 | case '\r': | |
1316 | vty->status = VTY_MORELINE; | |
1317 | break; | |
1318 | #endif | |
1319 | default: | |
718e3744 | 1320 | break; |
1321 | } | |
1322 | continue; | |
1323 | } | |
1324 | ||
1325 | /* Escape character. */ | |
1326 | if (vty->escape == VTY_ESCAPE) | |
1327 | { | |
1328 | vty_escape_map (buf[i], vty); | |
1329 | continue; | |
1330 | } | |
1331 | ||
1332 | /* Pre-escape status. */ | |
1333 | if (vty->escape == VTY_PRE_ESCAPE) | |
1334 | { | |
1335 | switch (buf[i]) | |
1336 | { | |
1337 | case '[': | |
1338 | vty->escape = VTY_ESCAPE; | |
1339 | break; | |
1340 | case 'b': | |
1341 | vty_backward_word (vty); | |
1342 | vty->escape = VTY_NORMAL; | |
1343 | break; | |
1344 | case 'f': | |
1345 | vty_forward_word (vty); | |
1346 | vty->escape = VTY_NORMAL; | |
1347 | break; | |
1348 | case 'd': | |
1349 | vty_forward_kill_word (vty); | |
1350 | vty->escape = VTY_NORMAL; | |
1351 | break; | |
1352 | case CONTROL('H'): | |
1353 | case 0x7f: | |
1354 | vty_backward_kill_word (vty); | |
1355 | vty->escape = VTY_NORMAL; | |
1356 | break; | |
1357 | default: | |
1358 | vty->escape = VTY_NORMAL; | |
1359 | break; | |
1360 | } | |
1361 | continue; | |
1362 | } | |
1363 | ||
1364 | switch (buf[i]) | |
1365 | { | |
1366 | case CONTROL('A'): | |
1367 | vty_beginning_of_line (vty); | |
1368 | break; | |
1369 | case CONTROL('B'): | |
1370 | vty_backward_char (vty); | |
1371 | break; | |
1372 | case CONTROL('C'): | |
1373 | vty_stop_input (vty); | |
1374 | break; | |
1375 | case CONTROL('D'): | |
1376 | vty_delete_char (vty); | |
1377 | break; | |
1378 | case CONTROL('E'): | |
1379 | vty_end_of_line (vty); | |
1380 | break; | |
1381 | case CONTROL('F'): | |
1382 | vty_forward_char (vty); | |
1383 | break; | |
1384 | case CONTROL('H'): | |
1385 | case 0x7f: | |
1386 | vty_delete_backward_char (vty); | |
1387 | break; | |
1388 | case CONTROL('K'): | |
1389 | vty_kill_line (vty); | |
1390 | break; | |
1391 | case CONTROL('N'): | |
1392 | vty_next_line (vty); | |
1393 | break; | |
1394 | case CONTROL('P'): | |
1395 | vty_previous_line (vty); | |
1396 | break; | |
1397 | case CONTROL('T'): | |
1398 | vty_transpose_chars (vty); | |
1399 | break; | |
1400 | case CONTROL('U'): | |
1401 | vty_kill_line_from_beginning (vty); | |
1402 | break; | |
1403 | case CONTROL('W'): | |
1404 | vty_backward_kill_word (vty); | |
1405 | break; | |
1406 | case CONTROL('Z'): | |
1407 | vty_end_config (vty); | |
1408 | break; | |
1409 | case '\n': | |
1410 | case '\r': | |
1411 | vty_out (vty, "%s", VTY_NEWLINE); | |
1412 | vty_execute (vty); | |
1413 | break; | |
1414 | case '\t': | |
1415 | vty_complete_command (vty); | |
1416 | break; | |
1417 | case '?': | |
1418 | if (vty->node == AUTH_NODE || vty->node == AUTH_ENABLE_NODE) | |
1419 | vty_self_insert (vty, buf[i]); | |
1420 | else | |
1421 | vty_describe_command (vty); | |
1422 | break; | |
1423 | case '\033': | |
1424 | if (i + 1 < nbytes && buf[i + 1] == '[') | |
1425 | { | |
1426 | vty->escape = VTY_ESCAPE; | |
1427 | i++; | |
1428 | } | |
1429 | else | |
1430 | vty->escape = VTY_PRE_ESCAPE; | |
1431 | break; | |
1432 | default: | |
1433 | if (buf[i] > 31 && buf[i] < 127) | |
1434 | vty_self_insert (vty, buf[i]); | |
1435 | break; | |
1436 | } | |
1437 | } | |
1438 | ||
1439 | /* Check status. */ | |
1440 | if (vty->status == VTY_CLOSE) | |
1441 | vty_close (vty); | |
1442 | else | |
1443 | { | |
1444 | vty_event (VTY_WRITE, vty_sock, vty); | |
1445 | vty_event (VTY_READ, vty_sock, vty); | |
1446 | } | |
1447 | return 0; | |
1448 | } | |
1449 | ||
1450 | /* Flush buffer to the vty. */ | |
1451 | static int | |
1452 | vty_flush (struct thread *thread) | |
1453 | { | |
1454 | int erase; | |
718e3744 | 1455 | int vty_sock = THREAD_FD (thread); |
1456 | struct vty *vty = THREAD_ARG (thread); | |
1457 | vty->t_write = NULL; | |
1458 | ||
1459 | /* Tempolary disable read thread. */ | |
1460 | if (vty->lines == 0) | |
1461 | if (vty->t_read) | |
1462 | { | |
1463 | thread_cancel (vty->t_read); | |
1464 | vty->t_read = NULL; | |
1465 | } | |
1466 | ||
1467 | /* Function execution continue. */ | |
718e3744 | 1468 | if (vty->status == VTY_MORE || vty->status == VTY_MORELINE) |
1469 | erase = 1; | |
1470 | else | |
1471 | erase = 0; | |
1472 | ||
1473 | if (vty->lines == 0) | |
1474 | buffer_flush_window (vty->obuf, vty->fd, vty->width, 25, 0, 1); | |
1475 | else if (vty->status == VTY_MORELINE) | |
1476 | buffer_flush_window (vty->obuf, vty->fd, vty->width, 1, erase, 0); | |
1477 | else | |
1478 | buffer_flush_window (vty->obuf, vty->fd, vty->width, | |
1479 | vty->lines >= 0 ? vty->lines : vty->height, | |
1480 | erase, 0); | |
1481 | ||
1482 | if (buffer_empty (vty->obuf)) | |
1483 | { | |
1484 | if (vty->status == VTY_CLOSE) | |
1485 | vty_close (vty); | |
1486 | else | |
1487 | { | |
1488 | vty->status = VTY_NORMAL; | |
1489 | ||
1490 | if (vty->lines == 0) | |
1491 | vty_event (VTY_READ, vty_sock, vty); | |
1492 | } | |
1493 | } | |
1494 | else | |
1495 | { | |
1496 | vty->status = VTY_MORE; | |
1497 | ||
1498 | if (vty->lines == 0) | |
1499 | vty_event (VTY_WRITE, vty_sock, vty); | |
1500 | } | |
718e3744 | 1501 | |
1502 | return 0; | |
1503 | } | |
1504 | ||
1505 | /* Create new vty structure. */ | |
1506 | struct vty * | |
1507 | vty_create (int vty_sock, union sockunion *su) | |
1508 | { | |
1509 | struct vty *vty; | |
1510 | ||
1511 | /* Allocate new vty structure and set up default values. */ | |
1512 | vty = vty_new (); | |
1513 | vty->fd = vty_sock; | |
1514 | vty->type = VTY_TERM; | |
1515 | vty->address = sockunion_su2str (su); | |
1516 | if (no_password_check) | |
1517 | { | |
1518 | if (host.advanced) | |
1519 | vty->node = ENABLE_NODE; | |
1520 | else | |
1521 | vty->node = VIEW_NODE; | |
1522 | } | |
1523 | else | |
1524 | vty->node = AUTH_NODE; | |
1525 | vty->fail = 0; | |
1526 | vty->cp = 0; | |
1527 | vty_clear_buf (vty); | |
1528 | vty->length = 0; | |
1529 | memset (vty->hist, 0, sizeof (vty->hist)); | |
1530 | vty->hp = 0; | |
1531 | vty->hindex = 0; | |
1532 | vector_set_index (vtyvec, vty_sock, vty); | |
1533 | vty->status = VTY_NORMAL; | |
1534 | vty->v_timeout = vty_timeout_val; | |
1535 | if (host.lines >= 0) | |
1536 | vty->lines = host.lines; | |
1537 | else | |
1538 | vty->lines = -1; | |
1539 | vty->iac = 0; | |
1540 | vty->iac_sb_in_progress = 0; | |
1541 | vty->sb_buffer = buffer_new (1024); | |
1542 | ||
1543 | if (! no_password_check) | |
1544 | { | |
1545 | /* Vty is not available if password isn't set. */ | |
1546 | if (host.password == NULL && host.password_encrypt == NULL) | |
1547 | { | |
1548 | vty_out (vty, "Vty password is not set.%s", VTY_NEWLINE); | |
1549 | vty->status = VTY_CLOSE; | |
1550 | vty_close (vty); | |
1551 | return NULL; | |
1552 | } | |
1553 | } | |
1554 | ||
1555 | /* Say hello to the world. */ | |
1556 | vty_hello (vty); | |
1557 | if (! no_password_check) | |
1558 | vty_out (vty, "%sUser Access Verification%s%s", VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE); | |
1559 | ||
1560 | /* Setting up terminal. */ | |
1561 | vty_will_echo (vty); | |
1562 | vty_will_suppress_go_ahead (vty); | |
1563 | ||
1564 | vty_dont_linemode (vty); | |
1565 | vty_do_window_size (vty); | |
1566 | /* vty_dont_lflow_ahead (vty); */ | |
1567 | ||
1568 | vty_prompt (vty); | |
1569 | ||
1570 | /* Add read/write thread. */ | |
1571 | vty_event (VTY_WRITE, vty_sock, vty); | |
1572 | vty_event (VTY_READ, vty_sock, vty); | |
1573 | ||
1574 | return vty; | |
1575 | } | |
1576 | ||
1577 | /* Accept connection from the network. */ | |
1578 | static int | |
1579 | vty_accept (struct thread *thread) | |
1580 | { | |
1581 | int vty_sock; | |
1582 | struct vty *vty; | |
1583 | union sockunion su; | |
1584 | int ret; | |
1585 | unsigned int on; | |
1586 | int accept_sock; | |
1587 | struct prefix *p = NULL; | |
1588 | struct access_list *acl = NULL; | |
1589 | ||
1590 | accept_sock = THREAD_FD (thread); | |
1591 | ||
1592 | /* We continue hearing vty socket. */ | |
1593 | vty_event (VTY_SERV, accept_sock, NULL); | |
1594 | ||
1595 | memset (&su, 0, sizeof (union sockunion)); | |
1596 | ||
1597 | /* We can handle IPv4 or IPv6 socket. */ | |
1598 | vty_sock = sockunion_accept (accept_sock, &su); | |
1599 | if (vty_sock < 0) | |
1600 | { | |
6099b3b5 | 1601 | zlog_warn ("can't accept vty socket : %s", safe_strerror (errno)); |
718e3744 | 1602 | return -1; |
1603 | } | |
1604 | ||
1605 | p = sockunion2hostprefix (&su); | |
1606 | ||
1607 | /* VTY's accesslist apply. */ | |
1608 | if (p->family == AF_INET && vty_accesslist_name) | |
1609 | { | |
1610 | if ((acl = access_list_lookup (AFI_IP, vty_accesslist_name)) && | |
1611 | (access_list_apply (acl, p) == FILTER_DENY)) | |
1612 | { | |
1613 | char *buf; | |
1614 | zlog (NULL, LOG_INFO, "Vty connection refused from %s", | |
1615 | (buf = sockunion_su2str (&su))); | |
1616 | free (buf); | |
1617 | close (vty_sock); | |
1618 | ||
1619 | /* continue accepting connections */ | |
1620 | vty_event (VTY_SERV, accept_sock, NULL); | |
1621 | ||
1622 | prefix_free (p); | |
1623 | ||
1624 | return 0; | |
1625 | } | |
1626 | } | |
1627 | ||
1628 | #ifdef HAVE_IPV6 | |
1629 | /* VTY's ipv6 accesslist apply. */ | |
1630 | if (p->family == AF_INET6 && vty_ipv6_accesslist_name) | |
1631 | { | |
1632 | if ((acl = access_list_lookup (AFI_IP6, vty_ipv6_accesslist_name)) && | |
1633 | (access_list_apply (acl, p) == FILTER_DENY)) | |
1634 | { | |
1635 | char *buf; | |
1636 | zlog (NULL, LOG_INFO, "Vty connection refused from %s", | |
1637 | (buf = sockunion_su2str (&su))); | |
1638 | free (buf); | |
1639 | close (vty_sock); | |
1640 | ||
1641 | /* continue accepting connections */ | |
1642 | vty_event (VTY_SERV, accept_sock, NULL); | |
1643 | ||
1644 | prefix_free (p); | |
1645 | ||
1646 | return 0; | |
1647 | } | |
1648 | } | |
1649 | #endif /* HAVE_IPV6 */ | |
1650 | ||
1651 | prefix_free (p); | |
1652 | ||
1653 | on = 1; | |
1654 | ret = setsockopt (vty_sock, IPPROTO_TCP, TCP_NODELAY, | |
1655 | (char *) &on, sizeof (on)); | |
1656 | if (ret < 0) | |
1657 | zlog (NULL, LOG_INFO, "can't set sockopt to vty_sock : %s", | |
6099b3b5 | 1658 | safe_strerror (errno)); |
718e3744 | 1659 | |
1660 | vty = vty_create (vty_sock, &su); | |
1661 | ||
1662 | return 0; | |
1663 | } | |
1664 | ||
1665 | #if defined(HAVE_IPV6) && !defined(NRL) | |
1666 | void | |
1667 | vty_serv_sock_addrinfo (const char *hostname, unsigned short port) | |
1668 | { | |
1669 | int ret; | |
1670 | struct addrinfo req; | |
1671 | struct addrinfo *ainfo; | |
1672 | struct addrinfo *ainfo_save; | |
1673 | int sock; | |
1674 | char port_str[BUFSIZ]; | |
1675 | ||
1676 | memset (&req, 0, sizeof (struct addrinfo)); | |
1677 | req.ai_flags = AI_PASSIVE; | |
1678 | req.ai_family = AF_UNSPEC; | |
1679 | req.ai_socktype = SOCK_STREAM; | |
1680 | sprintf (port_str, "%d", port); | |
1681 | port_str[sizeof (port_str) - 1] = '\0'; | |
1682 | ||
1683 | ret = getaddrinfo (hostname, port_str, &req, &ainfo); | |
1684 | ||
1685 | if (ret != 0) | |
1686 | { | |
1687 | fprintf (stderr, "getaddrinfo failed: %s\n", gai_strerror (ret)); | |
1688 | exit (1); | |
1689 | } | |
1690 | ||
1691 | ainfo_save = ainfo; | |
1692 | ||
1693 | do | |
1694 | { | |
1695 | if (ainfo->ai_family != AF_INET | |
1696 | #ifdef HAVE_IPV6 | |
1697 | && ainfo->ai_family != AF_INET6 | |
1698 | #endif /* HAVE_IPV6 */ | |
1699 | ) | |
1700 | continue; | |
1701 | ||
1702 | sock = socket (ainfo->ai_family, ainfo->ai_socktype, ainfo->ai_protocol); | |
1703 | if (sock < 0) | |
1704 | continue; | |
1705 | ||
1706 | sockopt_reuseaddr (sock); | |
1707 | sockopt_reuseport (sock); | |
1708 | ||
1709 | ret = bind (sock, ainfo->ai_addr, ainfo->ai_addrlen); | |
1710 | if (ret < 0) | |
1711 | { | |
1712 | close (sock); /* Avoid sd leak. */ | |
1713 | continue; | |
1714 | } | |
1715 | ||
1716 | ret = listen (sock, 3); | |
1717 | if (ret < 0) | |
1718 | { | |
1719 | close (sock); /* Avoid sd leak. */ | |
1720 | continue; | |
1721 | } | |
1722 | ||
1723 | vty_event (VTY_SERV, sock, NULL); | |
1724 | } | |
1725 | while ((ainfo = ainfo->ai_next) != NULL); | |
1726 | ||
1727 | freeaddrinfo (ainfo_save); | |
1728 | } | |
1729 | #endif /* HAVE_IPV6 && ! NRL */ | |
1730 | ||
1731 | /* Make vty server socket. */ | |
1732 | void | |
29db05b4 | 1733 | vty_serv_sock_family (const char* addr, unsigned short port, int family) |
718e3744 | 1734 | { |
1735 | int ret; | |
1736 | union sockunion su; | |
1737 | int accept_sock; | |
29db05b4 | 1738 | void* naddr=NULL; |
718e3744 | 1739 | |
1740 | memset (&su, 0, sizeof (union sockunion)); | |
1741 | su.sa.sa_family = family; | |
29db05b4 | 1742 | if(addr) |
1743 | switch(family) | |
1744 | { | |
1745 | case AF_INET: | |
1746 | naddr=&su.sin.sin_addr; | |
1747 | #ifdef HAVE_IPV6 | |
1748 | case AF_INET6: | |
1749 | naddr=&su.sin6.sin6_addr; | |
1750 | #endif | |
1751 | } | |
1752 | ||
1753 | if(naddr) | |
1754 | switch(inet_pton(family,addr,naddr)) | |
1755 | { | |
1756 | case -1: | |
1757 | zlog_err("bad address %s",addr); | |
1758 | naddr=NULL; | |
1759 | break; | |
1760 | case 0: | |
6099b3b5 | 1761 | zlog_err("error translating address %s: %s",addr,safe_strerror(errno)); |
29db05b4 | 1762 | naddr=NULL; |
1763 | } | |
718e3744 | 1764 | |
1765 | /* Make new socket. */ | |
1766 | accept_sock = sockunion_stream_socket (&su); | |
1767 | if (accept_sock < 0) | |
1768 | return; | |
1769 | ||
1770 | /* This is server, so reuse address. */ | |
1771 | sockopt_reuseaddr (accept_sock); | |
1772 | sockopt_reuseport (accept_sock); | |
1773 | ||
1774 | /* Bind socket to universal address and given port. */ | |
29db05b4 | 1775 | ret = sockunion_bind (accept_sock, &su, port, naddr); |
718e3744 | 1776 | if (ret < 0) |
1777 | { | |
29db05b4 | 1778 | zlog_warn("can't bind socket"); |
718e3744 | 1779 | close (accept_sock); /* Avoid sd leak. */ |
1780 | return; | |
1781 | } | |
1782 | ||
1783 | /* Listen socket under queue 3. */ | |
1784 | ret = listen (accept_sock, 3); | |
1785 | if (ret < 0) | |
1786 | { | |
1787 | zlog (NULL, LOG_WARNING, "can't listen socket"); | |
1788 | close (accept_sock); /* Avoid sd leak. */ | |
1789 | return; | |
1790 | } | |
1791 | ||
1792 | /* Add vty server event. */ | |
1793 | vty_event (VTY_SERV, accept_sock, NULL); | |
1794 | } | |
1795 | ||
1796 | #ifdef VTYSH | |
1797 | /* For sockaddr_un. */ | |
1798 | #include <sys/un.h> | |
1799 | ||
1800 | /* VTY shell UNIX domain socket. */ | |
1801 | void | |
6ad96ea1 | 1802 | vty_serv_un (const char *path) |
718e3744 | 1803 | { |
1804 | int ret; | |
75e15fe4 | 1805 | int sock, len; |
718e3744 | 1806 | struct sockaddr_un serv; |
1807 | mode_t old_mask; | |
edd7c245 | 1808 | struct zprivs_ids_t ids; |
1809 | ||
718e3744 | 1810 | /* First of all, unlink existing socket */ |
1811 | unlink (path); | |
1812 | ||
1813 | /* Set umask */ | |
1921e6f8 | 1814 | old_mask = umask (0007); |
718e3744 | 1815 | |
1816 | /* Make UNIX domain socket. */ | |
1817 | sock = socket (AF_UNIX, SOCK_STREAM, 0); | |
1818 | if (sock < 0) | |
1819 | { | |
1820 | perror ("sock"); | |
1821 | return; | |
1822 | } | |
1823 | ||
1824 | /* Make server socket. */ | |
1825 | memset (&serv, 0, sizeof (struct sockaddr_un)); | |
1826 | serv.sun_family = AF_UNIX; | |
1827 | strncpy (serv.sun_path, path, strlen (path)); | |
1828 | #ifdef HAVE_SUN_LEN | |
1829 | len = serv.sun_len = SUN_LEN(&serv); | |
1830 | #else | |
1831 | len = sizeof (serv.sun_family) + strlen (serv.sun_path); | |
1832 | #endif /* HAVE_SUN_LEN */ | |
1833 | ||
1834 | ret = bind (sock, (struct sockaddr *) &serv, len); | |
1835 | if (ret < 0) | |
1836 | { | |
1837 | perror ("bind"); | |
1838 | close (sock); /* Avoid sd leak. */ | |
1839 | return; | |
1840 | } | |
1841 | ||
1842 | ret = listen (sock, 5); | |
1843 | if (ret < 0) | |
1844 | { | |
1845 | perror ("listen"); | |
1846 | close (sock); /* Avoid sd leak. */ | |
1847 | return; | |
1848 | } | |
1849 | ||
1850 | umask (old_mask); | |
1851 | ||
edd7c245 | 1852 | zprivs_get_ids(&ids); |
1853 | ||
1854 | if (ids.gid_vty > 0) | |
1855 | { | |
1856 | /* set group of socket */ | |
1857 | if ( chown (path, -1, ids.gid_vty) ) | |
1858 | { | |
1859 | zlog_err ("vty_serv_un: could chown socket, %s", | |
6099b3b5 | 1860 | safe_strerror (errno) ); |
edd7c245 | 1861 | } |
1862 | } | |
1863 | ||
718e3744 | 1864 | vty_event (VTYSH_SERV, sock, NULL); |
1865 | } | |
1866 | ||
1867 | /* #define VTYSH_DEBUG 1 */ | |
1868 | ||
1869 | static int | |
1870 | vtysh_accept (struct thread *thread) | |
1871 | { | |
1872 | int accept_sock; | |
1873 | int sock; | |
1874 | int client_len; | |
75e15fe4 | 1875 | int flags; |
718e3744 | 1876 | struct sockaddr_un client; |
1877 | struct vty *vty; | |
1878 | ||
1879 | accept_sock = THREAD_FD (thread); | |
1880 | ||
1881 | vty_event (VTYSH_SERV, accept_sock, NULL); | |
1882 | ||
1883 | memset (&client, 0, sizeof (struct sockaddr_un)); | |
1884 | client_len = sizeof (struct sockaddr_un); | |
1885 | ||
e473b032 | 1886 | sock = accept (accept_sock, (struct sockaddr *) &client, |
1887 | (socklen_t *) &client_len); | |
718e3744 | 1888 | |
1889 | if (sock < 0) | |
1890 | { | |
6099b3b5 | 1891 | zlog_warn ("can't accept vty socket : %s", safe_strerror (errno)); |
718e3744 | 1892 | return -1; |
1893 | } | |
1894 | ||
dccfb190 | 1895 | /* set to non-blocking*/ |
1896 | if ( ((flags = fcntl (sock, F_GETFL)) == -1) | |
1897 | || (fcntl (sock, F_SETFL, flags|O_NONBLOCK) == -1) ) | |
75e15fe4 | 1898 | { |
1899 | zlog_warn ("vtysh_accept: could not set vty socket to non-blocking," | |
6099b3b5 | 1900 | " %s, closing", safe_strerror (errno)); |
75e15fe4 | 1901 | close (sock); |
1902 | return -1; | |
1903 | } | |
dccfb190 | 1904 | |
718e3744 | 1905 | #ifdef VTYSH_DEBUG |
1906 | printf ("VTY shell accept\n"); | |
1907 | #endif /* VTYSH_DEBUG */ | |
1908 | ||
1909 | vty = vty_new (); | |
1910 | vty->fd = sock; | |
1911 | vty->type = VTY_SHELL_SERV; | |
1912 | vty->node = VIEW_NODE; | |
1913 | ||
1914 | vty_event (VTYSH_READ, sock, vty); | |
1915 | ||
1916 | return 0; | |
1917 | } | |
1918 | ||
1919 | static int | |
1920 | vtysh_read (struct thread *thread) | |
1921 | { | |
1922 | int ret; | |
1923 | int sock; | |
1924 | int nbytes; | |
1925 | struct vty *vty; | |
1926 | unsigned char buf[VTY_READ_BUFSIZ]; | |
1927 | u_char header[4] = {0, 0, 0, 0}; | |
1928 | ||
1929 | sock = THREAD_FD (thread); | |
1930 | vty = THREAD_ARG (thread); | |
1931 | vty->t_read = NULL; | |
1932 | ||
1933 | nbytes = read (sock, buf, VTY_READ_BUFSIZ); | |
1934 | if (nbytes <= 0) | |
1935 | { | |
1936 | vty_close (vty); | |
1937 | #ifdef VTYSH_DEBUG | |
1938 | printf ("close vtysh\n"); | |
1939 | #endif /* VTYSH_DEBUG */ | |
1940 | return 0; | |
1941 | } | |
1942 | ||
1943 | #ifdef VTYSH_DEBUG | |
1944 | printf ("line: %s\n", buf); | |
1945 | #endif /* VTYSH_DEBUG */ | |
1946 | ||
1947 | vty_ensure (vty, nbytes); | |
1948 | memcpy (vty->buf, buf, nbytes); | |
1949 | ||
1950 | /* Pass this line to parser. */ | |
1951 | ret = vty_execute (vty); | |
1952 | ||
1953 | vty_clear_buf (vty); | |
1954 | ||
1955 | /* Return result. */ | |
1956 | #ifdef VTYSH_DEBUG | |
1957 | printf ("result: %d\n", ret); | |
1958 | printf ("vtysh node: %d\n", vty->node); | |
1959 | #endif /* VTYSH_DEBUG */ | |
1960 | ||
1961 | header[3] = ret; | |
49ff6d9d | 1962 | buffer_write(vty->obuf, header, 4); |
718e3744 | 1963 | |
49ff6d9d | 1964 | if (!vty->t_write && buffer_flush_available(vty->obuf, vty->fd)) |
1965 | vty_event (VTYSH_WRITE, vty->fd, vty); | |
718e3744 | 1966 | vty_event (VTYSH_READ, sock, vty); |
1967 | ||
1968 | return 0; | |
1969 | } | |
49ff6d9d | 1970 | |
1971 | static int | |
1972 | vtysh_write (struct thread *thread) | |
1973 | { | |
1974 | struct vty *vty = THREAD_ARG (thread); | |
1975 | ||
1976 | vty->t_write = NULL; | |
1977 | if (buffer_flush_available(vty->obuf, vty->fd)) | |
1978 | vty_event (VTYSH_WRITE, vty->fd, vty); | |
976d8c73 | 1979 | return 0; |
49ff6d9d | 1980 | } |
1981 | ||
718e3744 | 1982 | #endif /* VTYSH */ |
1983 | ||
1984 | /* Determine address family to bind. */ | |
1985 | void | |
6ad96ea1 | 1986 | vty_serv_sock (const char *addr, unsigned short port, const char *path) |
718e3744 | 1987 | { |
1988 | /* If port is set to 0, do not listen on TCP/IP at all! */ | |
1989 | if (port) | |
1990 | { | |
1991 | ||
1992 | #ifdef HAVE_IPV6 | |
1993 | #ifdef NRL | |
29db05b4 | 1994 | vty_serv_sock_family (addr, port, AF_INET); |
1995 | vty_serv_sock_family (addr, port, AF_INET6); | |
718e3744 | 1996 | #else /* ! NRL */ |
29db05b4 | 1997 | vty_serv_sock_addrinfo (addr, port); |
718e3744 | 1998 | #endif /* NRL*/ |
1999 | #else /* ! HAVE_IPV6 */ | |
29db05b4 | 2000 | vty_serv_sock_family (addr,port, AF_INET); |
718e3744 | 2001 | #endif /* HAVE_IPV6 */ |
2002 | } | |
2003 | ||
2004 | #ifdef VTYSH | |
2005 | vty_serv_un (path); | |
2006 | #endif /* VTYSH */ | |
2007 | } | |
2008 | ||
2009 | /* Close vty interface. */ | |
2010 | void | |
2011 | vty_close (struct vty *vty) | |
2012 | { | |
2013 | int i; | |
2014 | ||
2015 | /* Cancel threads.*/ | |
2016 | if (vty->t_read) | |
2017 | thread_cancel (vty->t_read); | |
2018 | if (vty->t_write) | |
2019 | thread_cancel (vty->t_write); | |
2020 | if (vty->t_timeout) | |
2021 | thread_cancel (vty->t_timeout); | |
718e3744 | 2022 | |
2023 | /* Flush buffer. */ | |
2024 | if (! buffer_empty (vty->obuf)) | |
2025 | buffer_flush_all (vty->obuf, vty->fd); | |
2026 | ||
2027 | /* Free input buffer. */ | |
2028 | buffer_free (vty->obuf); | |
2029 | ||
2030 | /* Free SB buffer. */ | |
2031 | if (vty->sb_buffer) | |
2032 | buffer_free (vty->sb_buffer); | |
2033 | ||
2034 | /* Free command history. */ | |
2035 | for (i = 0; i < VTY_MAXHIST; i++) | |
2036 | if (vty->hist[i]) | |
2037 | XFREE (MTYPE_VTY_HIST, vty->hist[i]); | |
2038 | ||
2039 | /* Unset vector. */ | |
2040 | vector_unset (vtyvec, vty->fd); | |
2041 | ||
2042 | /* Close socket. */ | |
2043 | if (vty->fd > 0) | |
2044 | close (vty->fd); | |
2045 | ||
2046 | if (vty->address) | |
2047 | XFREE (0, vty->address); | |
2048 | if (vty->buf) | |
2049 | XFREE (MTYPE_VTY, vty->buf); | |
2050 | ||
2051 | /* Check configure. */ | |
2052 | vty_config_unlock (vty); | |
2053 | ||
2054 | /* OK free vty. */ | |
2055 | XFREE (MTYPE_VTY, vty); | |
2056 | } | |
2057 | ||
2058 | /* When time out occur output message then close connection. */ | |
2059 | static int | |
2060 | vty_timeout (struct thread *thread) | |
2061 | { | |
2062 | struct vty *vty; | |
2063 | ||
2064 | vty = THREAD_ARG (thread); | |
2065 | vty->t_timeout = NULL; | |
2066 | vty->v_timeout = 0; | |
2067 | ||
2068 | /* Clear buffer*/ | |
2069 | buffer_reset (vty->obuf); | |
2070 | vty_out (vty, "%sVty connection is timed out.%s", VTY_NEWLINE, VTY_NEWLINE); | |
2071 | ||
2072 | /* Close connection. */ | |
2073 | vty->status = VTY_CLOSE; | |
2074 | vty_close (vty); | |
2075 | ||
2076 | return 0; | |
2077 | } | |
2078 | ||
2079 | /* Read up configuration file from file_name. */ | |
2080 | static void | |
2081 | vty_read_file (FILE *confp) | |
2082 | { | |
2083 | int ret; | |
2084 | struct vty *vty; | |
2085 | ||
2086 | vty = vty_new (); | |
2087 | vty->fd = 0; /* stdout */ | |
2088 | vty->type = VTY_TERM; | |
2089 | vty->node = CONFIG_NODE; | |
2090 | ||
2091 | /* Execute configuration file */ | |
2092 | ret = config_from_file (vty, confp); | |
2093 | ||
7021c425 | 2094 | if ( !((ret == CMD_SUCCESS) || (ret == CMD_ERR_NOTHING_TODO)) ) |
718e3744 | 2095 | { |
2096 | switch (ret) | |
7021c425 | 2097 | { |
2098 | case CMD_ERR_AMBIGUOUS: | |
2099 | fprintf (stderr, "Ambiguous command.\n"); | |
2100 | break; | |
2101 | case CMD_ERR_NO_MATCH: | |
2102 | fprintf (stderr, "There is no such command.\n"); | |
2103 | break; | |
2104 | } | |
718e3744 | 2105 | fprintf (stderr, "Error occured during reading below line.\n%s\n", |
2106 | vty->buf); | |
2107 | vty_close (vty); | |
2108 | exit (1); | |
2109 | } | |
2110 | ||
2111 | vty_close (vty); | |
2112 | } | |
2113 | ||
2114 | FILE * | |
2115 | vty_use_backup_config (char *fullpath) | |
2116 | { | |
2117 | char *fullpath_sav, *fullpath_tmp; | |
2118 | FILE *ret = NULL; | |
2119 | struct stat buf; | |
2120 | int tmp, sav; | |
2121 | int c; | |
2122 | char buffer[512]; | |
2123 | ||
2124 | fullpath_sav = malloc (strlen (fullpath) + strlen (CONF_BACKUP_EXT) + 1); | |
2125 | strcpy (fullpath_sav, fullpath); | |
2126 | strcat (fullpath_sav, CONF_BACKUP_EXT); | |
2127 | if (stat (fullpath_sav, &buf) == -1) | |
2128 | { | |
2129 | free (fullpath_sav); | |
2130 | return NULL; | |
2131 | } | |
2132 | ||
2133 | fullpath_tmp = malloc (strlen (fullpath) + 8); | |
2134 | sprintf (fullpath_tmp, "%s.XXXXXX", fullpath); | |
2135 | ||
2136 | /* Open file to configuration write. */ | |
2137 | tmp = mkstemp (fullpath_tmp); | |
2138 | if (tmp < 0) | |
2139 | { | |
2140 | free (fullpath_sav); | |
2141 | free (fullpath_tmp); | |
2142 | return NULL; | |
2143 | } | |
2144 | ||
2145 | sav = open (fullpath_sav, O_RDONLY); | |
2146 | if (sav < 0) | |
2147 | { | |
3dbf9969 | 2148 | unlink (fullpath_tmp); |
718e3744 | 2149 | free (fullpath_sav); |
2150 | free (fullpath_tmp); | |
718e3744 | 2151 | return NULL; |
2152 | } | |
2153 | ||
2154 | while((c = read (sav, buffer, 512)) > 0) | |
2155 | write (tmp, buffer, c); | |
2156 | ||
2157 | close (sav); | |
2158 | close (tmp); | |
2159 | ||
aa593d5e | 2160 | if (chmod(fullpath_tmp, CONFIGFILE_MASK) != 0) |
2161 | { | |
3dbf9969 | 2162 | unlink (fullpath_tmp); |
aa593d5e | 2163 | free (fullpath_sav); |
2164 | free (fullpath_tmp); | |
aa593d5e | 2165 | return NULL; |
2166 | } | |
2167 | ||
718e3744 | 2168 | if (link (fullpath_tmp, fullpath) == 0) |
2169 | ret = fopen (fullpath, "r"); | |
2170 | ||
2171 | unlink (fullpath_tmp); | |
2172 | ||
2173 | free (fullpath_sav); | |
2174 | free (fullpath_tmp); | |
2175 | return fopen (fullpath, "r"); | |
2176 | } | |
2177 | ||
2178 | /* Read up configuration file from file_name. */ | |
2179 | void | |
2180 | vty_read_config (char *config_file, | |
320ec10a | 2181 | char *config_default_dir) |
718e3744 | 2182 | { |
ccc9235e | 2183 | char cwd[MAXPATHLEN]; |
718e3744 | 2184 | FILE *confp = NULL; |
2185 | char *fullpath; | |
2186 | ||
2187 | /* If -f flag specified. */ | |
2188 | if (config_file != NULL) | |
2189 | { | |
2190 | if (! IS_DIRECTORY_SEP (config_file[0])) | |
320ec10a | 2191 | { |
2192 | getcwd (cwd, MAXPATHLEN); | |
2193 | fullpath = XMALLOC (MTYPE_TMP, | |
2194 | strlen (cwd) + strlen (config_file) + 2); | |
2195 | sprintf (fullpath, "%s/%s", cwd, config_file); | |
2196 | } | |
718e3744 | 2197 | else |
320ec10a | 2198 | fullpath = config_file; |
718e3744 | 2199 | |
2200 | confp = fopen (fullpath, "r"); | |
2201 | ||
2202 | if (confp == NULL) | |
320ec10a | 2203 | { |
2204 | confp = vty_use_backup_config (fullpath); | |
2205 | if (confp) | |
2206 | fprintf (stderr, "WARNING: using backup configuration file!\n"); | |
2207 | else | |
2208 | { | |
2209 | fprintf (stderr, "can't open configuration file [%s]\n", | |
2210 | config_file); | |
2211 | exit(1); | |
2212 | } | |
2213 | } | |
718e3744 | 2214 | } |
2215 | else | |
2216 | { | |
718e3744 | 2217 | #ifdef VTYSH |
320ec10a | 2218 | int ret; |
2219 | struct stat conf_stat; | |
2220 | ||
2221 | /* !!!!PLEASE LEAVE!!!! | |
2222 | * This is NEEDED for use with vtysh -b, or else you can get | |
2223 | * a real configuration food fight with a lot garbage in the | |
2224 | * merged configuration file it creates coming from the per | |
2225 | * daemon configuration files. This also allows the daemons | |
2226 | * to start if there default configuration file is not | |
2227 | * present or ignore them, as needed when using vtysh -b to | |
2228 | * configure the daemons at boot - MAG | |
2229 | */ | |
2230 | ||
2231 | /* Stat for vtysh Zebra.conf, if found startup and wait for | |
2232 | * boot configuration | |
2233 | */ | |
2234 | ||
2235 | if ( strstr(config_default_dir, "vtysh") == NULL) | |
2236 | { | |
2237 | ret = stat (integrate_default, &conf_stat); | |
2238 | if (ret >= 0) | |
2239 | return; | |
2240 | } | |
718e3744 | 2241 | #endif /* VTYSH */ |
2242 | ||
320ec10a | 2243 | confp = fopen (config_default_dir, "r"); |
2244 | if (confp == NULL) | |
2245 | { | |
2246 | confp = vty_use_backup_config (config_default_dir); | |
2247 | if (confp) | |
2248 | { | |
2249 | fprintf (stderr, "WARNING: using backup configuration file!\n"); | |
2250 | fullpath = config_default_dir; | |
2251 | } | |
2252 | else | |
2253 | { | |
2254 | fprintf (stderr, "can't open configuration file [%s]\n", | |
2255 | config_default_dir); | |
2256 | exit (1); | |
2257 | } | |
2258 | } | |
718e3744 | 2259 | else |
320ec10a | 2260 | fullpath = config_default_dir; |
2261 | } | |
2262 | ||
718e3744 | 2263 | vty_read_file (confp); |
2264 | ||
2265 | fclose (confp); | |
2266 | ||
2267 | host_config_set (fullpath); | |
2268 | } | |
2269 | ||
2270 | /* Small utility function which output log to the VTY. */ | |
2271 | void | |
2272 | vty_log (const char *proto_str, const char *format, va_list va) | |
2273 | { | |
8c328f11 | 2274 | unsigned int i; |
718e3744 | 2275 | struct vty *vty; |
2276 | ||
2277 | for (i = 0; i < vector_max (vtyvec); i++) | |
2278 | if ((vty = vector_slot (vtyvec, i)) != NULL) | |
2279 | if (vty->monitor) | |
2280 | vty_log_out (vty, proto_str, format, va); | |
2281 | } | |
2282 | ||
2283 | int | |
2284 | vty_config_lock (struct vty *vty) | |
2285 | { | |
2286 | if (vty_config == 0) | |
2287 | { | |
2288 | vty->config = 1; | |
2289 | vty_config = 1; | |
2290 | } | |
2291 | return vty->config; | |
2292 | } | |
2293 | ||
2294 | int | |
2295 | vty_config_unlock (struct vty *vty) | |
2296 | { | |
2297 | if (vty_config == 1 && vty->config == 1) | |
2298 | { | |
2299 | vty->config = 0; | |
2300 | vty_config = 0; | |
2301 | } | |
2302 | return vty->config; | |
2303 | } | |
2304 | \f | |
2305 | /* Master of the threads. */ | |
b21b19c5 | 2306 | static struct thread_master *master; |
718e3744 | 2307 | |
2308 | static void | |
2309 | vty_event (enum event event, int sock, struct vty *vty) | |
2310 | { | |
2311 | struct thread *vty_serv_thread; | |
2312 | ||
2313 | switch (event) | |
2314 | { | |
2315 | case VTY_SERV: | |
2316 | vty_serv_thread = thread_add_read (master, vty_accept, vty, sock); | |
2317 | vector_set_index (Vvty_serv_thread, sock, vty_serv_thread); | |
2318 | break; | |
2319 | #ifdef VTYSH | |
2320 | case VTYSH_SERV: | |
2321 | thread_add_read (master, vtysh_accept, vty, sock); | |
2322 | break; | |
2323 | case VTYSH_READ: | |
49ff6d9d | 2324 | vty->t_read = thread_add_read (master, vtysh_read, vty, sock); |
2325 | break; | |
2326 | case VTYSH_WRITE: | |
2327 | vty->t_write = thread_add_write (master, vtysh_write, vty, sock); | |
718e3744 | 2328 | break; |
2329 | #endif /* VTYSH */ | |
2330 | case VTY_READ: | |
2331 | vty->t_read = thread_add_read (master, vty_read, vty, sock); | |
2332 | ||
2333 | /* Time out treatment. */ | |
2334 | if (vty->v_timeout) | |
2335 | { | |
2336 | if (vty->t_timeout) | |
2337 | thread_cancel (vty->t_timeout); | |
2338 | vty->t_timeout = | |
2339 | thread_add_timer (master, vty_timeout, vty, vty->v_timeout); | |
2340 | } | |
2341 | break; | |
2342 | case VTY_WRITE: | |
2343 | if (! vty->t_write) | |
2344 | vty->t_write = thread_add_write (master, vty_flush, vty, sock); | |
2345 | break; | |
2346 | case VTY_TIMEOUT_RESET: | |
2347 | if (vty->t_timeout) | |
2348 | { | |
2349 | thread_cancel (vty->t_timeout); | |
2350 | vty->t_timeout = NULL; | |
2351 | } | |
2352 | if (vty->v_timeout) | |
2353 | { | |
2354 | vty->t_timeout = | |
2355 | thread_add_timer (master, vty_timeout, vty, vty->v_timeout); | |
2356 | } | |
2357 | break; | |
2358 | } | |
2359 | } | |
2360 | \f | |
2361 | DEFUN (config_who, | |
2362 | config_who_cmd, | |
2363 | "who", | |
2364 | "Display who is on vty\n") | |
2365 | { | |
8c328f11 | 2366 | unsigned int i; |
718e3744 | 2367 | struct vty *v; |
2368 | ||
2369 | for (i = 0; i < vector_max (vtyvec); i++) | |
2370 | if ((v = vector_slot (vtyvec, i)) != NULL) | |
2371 | vty_out (vty, "%svty[%d] connected from %s.%s", | |
2372 | v->config ? "*" : " ", | |
2373 | i, v->address, VTY_NEWLINE); | |
2374 | return CMD_SUCCESS; | |
2375 | } | |
2376 | ||
2377 | /* Move to vty configuration mode. */ | |
2378 | DEFUN (line_vty, | |
2379 | line_vty_cmd, | |
2380 | "line vty", | |
2381 | "Configure a terminal line\n" | |
2382 | "Virtual terminal\n") | |
2383 | { | |
2384 | vty->node = VTY_NODE; | |
2385 | return CMD_SUCCESS; | |
2386 | } | |
2387 | ||
2388 | /* Set time out value. */ | |
2389 | int | |
9035efaa | 2390 | exec_timeout (struct vty *vty, const char *min_str, const char *sec_str) |
718e3744 | 2391 | { |
2392 | unsigned long timeout = 0; | |
2393 | ||
2394 | /* min_str and sec_str are already checked by parser. So it must be | |
2395 | all digit string. */ | |
2396 | if (min_str) | |
2397 | { | |
2398 | timeout = strtol (min_str, NULL, 10); | |
2399 | timeout *= 60; | |
2400 | } | |
2401 | if (sec_str) | |
2402 | timeout += strtol (sec_str, NULL, 10); | |
2403 | ||
2404 | vty_timeout_val = timeout; | |
2405 | vty->v_timeout = timeout; | |
2406 | vty_event (VTY_TIMEOUT_RESET, 0, vty); | |
2407 | ||
2408 | ||
2409 | return CMD_SUCCESS; | |
2410 | } | |
2411 | ||
2412 | DEFUN (exec_timeout_min, | |
2413 | exec_timeout_min_cmd, | |
2414 | "exec-timeout <0-35791>", | |
2415 | "Set timeout value\n" | |
2416 | "Timeout value in minutes\n") | |
2417 | { | |
2418 | return exec_timeout (vty, argv[0], NULL); | |
2419 | } | |
2420 | ||
2421 | DEFUN (exec_timeout_sec, | |
2422 | exec_timeout_sec_cmd, | |
2423 | "exec-timeout <0-35791> <0-2147483>", | |
2424 | "Set the EXEC timeout\n" | |
2425 | "Timeout in minutes\n" | |
2426 | "Timeout in seconds\n") | |
2427 | { | |
2428 | return exec_timeout (vty, argv[0], argv[1]); | |
2429 | } | |
2430 | ||
2431 | DEFUN (no_exec_timeout, | |
2432 | no_exec_timeout_cmd, | |
2433 | "no exec-timeout", | |
2434 | NO_STR | |
2435 | "Set the EXEC timeout\n") | |
2436 | { | |
2437 | return exec_timeout (vty, NULL, NULL); | |
2438 | } | |
2439 | ||
2440 | /* Set vty access class. */ | |
2441 | DEFUN (vty_access_class, | |
2442 | vty_access_class_cmd, | |
2443 | "access-class WORD", | |
2444 | "Filter connections based on an IP access list\n" | |
2445 | "IP access list\n") | |
2446 | { | |
2447 | if (vty_accesslist_name) | |
2448 | XFREE(MTYPE_VTY, vty_accesslist_name); | |
2449 | ||
2450 | vty_accesslist_name = XSTRDUP(MTYPE_VTY, argv[0]); | |
2451 | ||
2452 | return CMD_SUCCESS; | |
2453 | } | |
2454 | ||
2455 | /* Clear vty access class. */ | |
2456 | DEFUN (no_vty_access_class, | |
2457 | no_vty_access_class_cmd, | |
2458 | "no access-class [WORD]", | |
2459 | NO_STR | |
2460 | "Filter connections based on an IP access list\n" | |
2461 | "IP access list\n") | |
2462 | { | |
2463 | if (! vty_accesslist_name || (argc && strcmp(vty_accesslist_name, argv[0]))) | |
2464 | { | |
2465 | vty_out (vty, "Access-class is not currently applied to vty%s", | |
2466 | VTY_NEWLINE); | |
2467 | return CMD_WARNING; | |
2468 | } | |
2469 | ||
2470 | XFREE(MTYPE_VTY, vty_accesslist_name); | |
2471 | ||
2472 | vty_accesslist_name = NULL; | |
2473 | ||
2474 | return CMD_SUCCESS; | |
2475 | } | |
2476 | ||
2477 | #ifdef HAVE_IPV6 | |
2478 | /* Set vty access class. */ | |
2479 | DEFUN (vty_ipv6_access_class, | |
2480 | vty_ipv6_access_class_cmd, | |
2481 | "ipv6 access-class WORD", | |
2482 | IPV6_STR | |
2483 | "Filter connections based on an IP access list\n" | |
2484 | "IPv6 access list\n") | |
2485 | { | |
2486 | if (vty_ipv6_accesslist_name) | |
2487 | XFREE(MTYPE_VTY, vty_ipv6_accesslist_name); | |
2488 | ||
2489 | vty_ipv6_accesslist_name = XSTRDUP(MTYPE_VTY, argv[0]); | |
2490 | ||
2491 | return CMD_SUCCESS; | |
2492 | } | |
2493 | ||
2494 | /* Clear vty access class. */ | |
2495 | DEFUN (no_vty_ipv6_access_class, | |
2496 | no_vty_ipv6_access_class_cmd, | |
2497 | "no ipv6 access-class [WORD]", | |
2498 | NO_STR | |
2499 | IPV6_STR | |
2500 | "Filter connections based on an IP access list\n" | |
2501 | "IPv6 access list\n") | |
2502 | { | |
2503 | if (! vty_ipv6_accesslist_name || | |
2504 | (argc && strcmp(vty_ipv6_accesslist_name, argv[0]))) | |
2505 | { | |
2506 | vty_out (vty, "IPv6 access-class is not currently applied to vty%s", | |
2507 | VTY_NEWLINE); | |
2508 | return CMD_WARNING; | |
2509 | } | |
2510 | ||
2511 | XFREE(MTYPE_VTY, vty_ipv6_accesslist_name); | |
2512 | ||
2513 | vty_ipv6_accesslist_name = NULL; | |
2514 | ||
2515 | return CMD_SUCCESS; | |
2516 | } | |
2517 | #endif /* HAVE_IPV6 */ | |
2518 | ||
2519 | /* vty login. */ | |
2520 | DEFUN (vty_login, | |
2521 | vty_login_cmd, | |
2522 | "login", | |
2523 | "Enable password checking\n") | |
2524 | { | |
2525 | no_password_check = 0; | |
2526 | return CMD_SUCCESS; | |
2527 | } | |
2528 | ||
2529 | DEFUN (no_vty_login, | |
2530 | no_vty_login_cmd, | |
2531 | "no login", | |
2532 | NO_STR | |
2533 | "Enable password checking\n") | |
2534 | { | |
2535 | no_password_check = 1; | |
2536 | return CMD_SUCCESS; | |
2537 | } | |
2538 | ||
2539 | DEFUN (service_advanced_vty, | |
2540 | service_advanced_vty_cmd, | |
2541 | "service advanced-vty", | |
2542 | "Set up miscellaneous service\n" | |
2543 | "Enable advanced mode vty interface\n") | |
2544 | { | |
2545 | host.advanced = 1; | |
2546 | return CMD_SUCCESS; | |
2547 | } | |
2548 | ||
2549 | DEFUN (no_service_advanced_vty, | |
2550 | no_service_advanced_vty_cmd, | |
2551 | "no service advanced-vty", | |
2552 | NO_STR | |
2553 | "Set up miscellaneous service\n" | |
2554 | "Enable advanced mode vty interface\n") | |
2555 | { | |
2556 | host.advanced = 0; | |
2557 | return CMD_SUCCESS; | |
2558 | } | |
2559 | ||
2560 | DEFUN (terminal_monitor, | |
2561 | terminal_monitor_cmd, | |
2562 | "terminal monitor", | |
2563 | "Set terminal line parameters\n" | |
2564 | "Copy debug output to the current terminal line\n") | |
2565 | { | |
2566 | vty->monitor = 1; | |
2567 | return CMD_SUCCESS; | |
2568 | } | |
2569 | ||
2570 | DEFUN (terminal_no_monitor, | |
2571 | terminal_no_monitor_cmd, | |
2572 | "terminal no monitor", | |
2573 | "Set terminal line parameters\n" | |
2574 | NO_STR | |
2575 | "Copy debug output to the current terminal line\n") | |
2576 | { | |
2577 | vty->monitor = 0; | |
2578 | return CMD_SUCCESS; | |
2579 | } | |
2580 | ||
2581 | DEFUN (show_history, | |
2582 | show_history_cmd, | |
2583 | "show history", | |
2584 | SHOW_STR | |
2585 | "Display the session command history\n") | |
2586 | { | |
2587 | int index; | |
2588 | ||
2589 | for (index = vty->hindex + 1; index != vty->hindex;) | |
2590 | { | |
2591 | if (index == VTY_MAXHIST) | |
2592 | { | |
2593 | index = 0; | |
2594 | continue; | |
2595 | } | |
2596 | ||
2597 | if (vty->hist[index] != NULL) | |
2598 | vty_out (vty, " %s%s", vty->hist[index], VTY_NEWLINE); | |
2599 | ||
2600 | index++; | |
2601 | } | |
2602 | ||
2603 | return CMD_SUCCESS; | |
2604 | } | |
2605 | ||
2606 | /* Display current configuration. */ | |
2607 | int | |
2608 | vty_config_write (struct vty *vty) | |
2609 | { | |
2610 | vty_out (vty, "line vty%s", VTY_NEWLINE); | |
2611 | ||
2612 | if (vty_accesslist_name) | |
2613 | vty_out (vty, " access-class %s%s", | |
2614 | vty_accesslist_name, VTY_NEWLINE); | |
2615 | ||
2616 | if (vty_ipv6_accesslist_name) | |
2617 | vty_out (vty, " ipv6 access-class %s%s", | |
2618 | vty_ipv6_accesslist_name, VTY_NEWLINE); | |
2619 | ||
2620 | /* exec-timeout */ | |
2621 | if (vty_timeout_val != VTY_TIMEOUT_DEFAULT) | |
2622 | vty_out (vty, " exec-timeout %ld %ld%s", | |
2623 | vty_timeout_val / 60, | |
2624 | vty_timeout_val % 60, VTY_NEWLINE); | |
2625 | ||
2626 | /* login */ | |
2627 | if (no_password_check) | |
2628 | vty_out (vty, " no login%s", VTY_NEWLINE); | |
2629 | ||
2630 | vty_out (vty, "!%s", VTY_NEWLINE); | |
2631 | ||
2632 | return CMD_SUCCESS; | |
2633 | } | |
2634 | ||
2635 | struct cmd_node vty_node = | |
2636 | { | |
2637 | VTY_NODE, | |
2638 | "%s(config-line)# ", | |
e7168df4 | 2639 | 1, |
718e3744 | 2640 | }; |
2641 | ||
2642 | /* Reset all VTY status. */ | |
2643 | void | |
2644 | vty_reset () | |
2645 | { | |
8c328f11 | 2646 | unsigned int i; |
718e3744 | 2647 | struct vty *vty; |
2648 | struct thread *vty_serv_thread; | |
2649 | ||
2650 | for (i = 0; i < vector_max (vtyvec); i++) | |
2651 | if ((vty = vector_slot (vtyvec, i)) != NULL) | |
2652 | { | |
2653 | buffer_reset (vty->obuf); | |
2654 | vty->status = VTY_CLOSE; | |
2655 | vty_close (vty); | |
2656 | } | |
2657 | ||
2658 | for (i = 0; i < vector_max (Vvty_serv_thread); i++) | |
2659 | if ((vty_serv_thread = vector_slot (Vvty_serv_thread, i)) != NULL) | |
2660 | { | |
2661 | thread_cancel (vty_serv_thread); | |
2662 | vector_slot (Vvty_serv_thread, i) = NULL; | |
2663 | close (i); | |
2664 | } | |
2665 | ||
2666 | vty_timeout_val = VTY_TIMEOUT_DEFAULT; | |
2667 | ||
2668 | if (vty_accesslist_name) | |
2669 | { | |
2670 | XFREE(MTYPE_VTY, vty_accesslist_name); | |
2671 | vty_accesslist_name = NULL; | |
2672 | } | |
2673 | ||
2674 | if (vty_ipv6_accesslist_name) | |
2675 | { | |
2676 | XFREE(MTYPE_VTY, vty_ipv6_accesslist_name); | |
2677 | vty_ipv6_accesslist_name = NULL; | |
2678 | } | |
2679 | } | |
2680 | ||
2681 | /* for ospf6d easy temprary reload function */ | |
2682 | /* vty_reset + close accept socket */ | |
2683 | void | |
2684 | vty_finish () | |
2685 | { | |
8c328f11 | 2686 | unsigned int i; |
718e3744 | 2687 | struct vty *vty; |
2688 | struct thread *vty_serv_thread; | |
2689 | ||
2690 | for (i = 0; i < vector_max (vtyvec); i++) | |
2691 | if ((vty = vector_slot (vtyvec, i)) != NULL) | |
2692 | { | |
2693 | buffer_reset (vty->obuf); | |
2694 | vty->status = VTY_CLOSE; | |
2695 | vty_close (vty); | |
2696 | } | |
2697 | ||
2698 | for (i = 0; i < vector_max (Vvty_serv_thread); i++) | |
2699 | if ((vty_serv_thread = vector_slot (Vvty_serv_thread, i)) != NULL) | |
2700 | { | |
2701 | thread_cancel (vty_serv_thread); | |
2702 | vector_slot (Vvty_serv_thread, i) = NULL; | |
2703 | close (i); | |
2704 | } | |
2705 | ||
2706 | vty_timeout_val = VTY_TIMEOUT_DEFAULT; | |
2707 | ||
2708 | if (vty_accesslist_name) | |
2709 | { | |
2710 | XFREE(MTYPE_VTY, vty_accesslist_name); | |
2711 | vty_accesslist_name = NULL; | |
2712 | } | |
2713 | ||
2714 | if (vty_ipv6_accesslist_name) | |
2715 | { | |
2716 | XFREE(MTYPE_VTY, vty_ipv6_accesslist_name); | |
2717 | vty_ipv6_accesslist_name = NULL; | |
2718 | } | |
2719 | } | |
2720 | ||
2721 | void | |
2722 | vty_save_cwd () | |
2723 | { | |
79ad2798 | 2724 | char cwd[MAXPATHLEN]; |
ccc9235e | 2725 | char *c; |
79ad2798 | 2726 | |
ccc9235e | 2727 | c = getcwd (cwd, MAXPATHLEN); |
718e3744 | 2728 | |
ccc9235e | 2729 | if (!c) |
79ad2798 | 2730 | { |
2731 | chdir (SYSCONFDIR); | |
ccc9235e | 2732 | getcwd (cwd, MAXPATHLEN); |
79ad2798 | 2733 | } |
718e3744 | 2734 | |
2735 | vty_cwd = XMALLOC (MTYPE_TMP, strlen (cwd) + 1); | |
2736 | strcpy (vty_cwd, cwd); | |
2737 | } | |
2738 | ||
2739 | char * | |
2740 | vty_get_cwd () | |
2741 | { | |
2742 | return vty_cwd; | |
2743 | } | |
2744 | ||
2745 | int | |
2746 | vty_shell (struct vty *vty) | |
2747 | { | |
2748 | return vty->type == VTY_SHELL ? 1 : 0; | |
2749 | } | |
2750 | ||
2751 | int | |
2752 | vty_shell_serv (struct vty *vty) | |
2753 | { | |
2754 | return vty->type == VTY_SHELL_SERV ? 1 : 0; | |
2755 | } | |
2756 | ||
2757 | void | |
2758 | vty_init_vtysh () | |
2759 | { | |
2760 | vtyvec = vector_init (VECTOR_MIN_SIZE); | |
2761 | } | |
2762 | ||
2763 | /* Install vty's own commands like `who' command. */ | |
2764 | void | |
b21b19c5 | 2765 | vty_init (struct thread_master *master_thread) |
718e3744 | 2766 | { |
2767 | /* For further configuration read, preserve current directory. */ | |
2768 | vty_save_cwd (); | |
2769 | ||
2770 | vtyvec = vector_init (VECTOR_MIN_SIZE); | |
2771 | ||
b21b19c5 | 2772 | master = master_thread; |
2773 | ||
718e3744 | 2774 | /* Initilize server thread vector. */ |
2775 | Vvty_serv_thread = vector_init (VECTOR_MIN_SIZE); | |
2776 | ||
2777 | /* Install bgp top node. */ | |
2778 | install_node (&vty_node, vty_config_write); | |
2779 | ||
2780 | install_element (VIEW_NODE, &config_who_cmd); | |
2781 | install_element (VIEW_NODE, &show_history_cmd); | |
2782 | install_element (ENABLE_NODE, &config_who_cmd); | |
2783 | install_element (CONFIG_NODE, &line_vty_cmd); | |
2784 | install_element (CONFIG_NODE, &service_advanced_vty_cmd); | |
2785 | install_element (CONFIG_NODE, &no_service_advanced_vty_cmd); | |
2786 | install_element (CONFIG_NODE, &show_history_cmd); | |
2787 | install_element (ENABLE_NODE, &terminal_monitor_cmd); | |
2788 | install_element (ENABLE_NODE, &terminal_no_monitor_cmd); | |
2789 | install_element (ENABLE_NODE, &show_history_cmd); | |
2790 | ||
2791 | install_default (VTY_NODE); | |
2792 | install_element (VTY_NODE, &exec_timeout_min_cmd); | |
2793 | install_element (VTY_NODE, &exec_timeout_sec_cmd); | |
2794 | install_element (VTY_NODE, &no_exec_timeout_cmd); | |
2795 | install_element (VTY_NODE, &vty_access_class_cmd); | |
2796 | install_element (VTY_NODE, &no_vty_access_class_cmd); | |
2797 | install_element (VTY_NODE, &vty_login_cmd); | |
2798 | install_element (VTY_NODE, &no_vty_login_cmd); | |
2799 | #ifdef HAVE_IPV6 | |
2800 | install_element (VTY_NODE, &vty_ipv6_access_class_cmd); | |
2801 | install_element (VTY_NODE, &no_vty_ipv6_access_class_cmd); | |
2802 | #endif /* HAVE_IPV6 */ | |
2803 | } |