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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 | |
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" |
9fc7ebf1 | 38 | #include "network.h" |
39 | ||
40 | #include <arpa/telnet.h> | |
b510a06e | 41 | #include <termios.h> |
718e3744 | 42 | |
4a1ab8e4 DL |
43 | DEFINE_MTYPE_STATIC(LIB, VTY, "VTY") |
44 | DEFINE_MTYPE_STATIC(LIB, VTY_OUT_BUF, "VTY output buffer") | |
45 | DEFINE_MTYPE_STATIC(LIB, VTY_HIST, "VTY history") | |
46 | ||
718e3744 | 47 | /* Vty events */ |
48 | enum event | |
49 | { | |
50 | VTY_SERV, | |
51 | VTY_READ, | |
52 | VTY_WRITE, | |
53 | VTY_TIMEOUT_RESET, | |
54 | #ifdef VTYSH | |
55 | VTYSH_SERV, | |
49ff6d9d | 56 | VTYSH_READ, |
57 | VTYSH_WRITE | |
718e3744 | 58 | #endif /* VTYSH */ |
59 | }; | |
60 | ||
61 | static void vty_event (enum event, int, struct vty *); | |
62 | ||
63 | /* Extern host structure from command.c */ | |
64 | extern struct host host; | |
6b0655a2 | 65 | |
718e3744 | 66 | /* Vector which store each vty structure. */ |
67 | static vector vtyvec; | |
68 | ||
69 | /* Vty timeout value. */ | |
70 | static unsigned long vty_timeout_val = VTY_TIMEOUT_DEFAULT; | |
71 | ||
72 | /* Vty access-class command */ | |
73 | static char *vty_accesslist_name = NULL; | |
74 | ||
75 | /* Vty access-calss for IPv6. */ | |
76 | static char *vty_ipv6_accesslist_name = NULL; | |
77 | ||
78 | /* VTY server thread. */ | |
677bcbbf | 79 | static vector Vvty_serv_thread; |
718e3744 | 80 | |
81 | /* Current directory. */ | |
82 | char *vty_cwd = NULL; | |
83 | ||
84 | /* Configure lock. */ | |
85 | static int vty_config; | |
cc933ef9 | 86 | static int vty_config_is_lockless = 0; |
718e3744 | 87 | |
88 | /* Login password check. */ | |
89 | static int no_password_check = 0; | |
90 | ||
91 | /* Integrated configuration file path */ | |
92 | char integrate_default[] = SYSCONFDIR INTEGRATE_DEFAULT_CONFIG; | |
93 | ||
da688ecd | 94 | static int do_log_commands = 0; |
6b0655a2 | 95 | |
718e3744 | 96 | /* VTY standard output function. */ |
97 | int | |
98 | vty_out (struct vty *vty, const char *format, ...) | |
99 | { | |
100 | va_list args; | |
101 | int len = 0; | |
102 | int size = 1024; | |
103 | char buf[1024]; | |
104 | char *p = NULL; | |
718e3744 | 105 | |
106 | if (vty_shell (vty)) | |
d246bd96 | 107 | { |
108 | va_start (args, format); | |
109 | vprintf (format, args); | |
110 | va_end (args); | |
111 | } | |
718e3744 | 112 | else |
113 | { | |
114 | /* Try to write to initial buffer. */ | |
d246bd96 | 115 | va_start (args, format); |
1035065f | 116 | len = vsnprintf (buf, sizeof(buf), format, args); |
d246bd96 | 117 | va_end (args); |
718e3744 | 118 | |
119 | /* Initial buffer is not enough. */ | |
120 | if (len < 0 || len >= size) | |
121 | { | |
122 | while (1) | |
123 | { | |
124 | if (len > -1) | |
125 | size = len + 1; | |
126 | else | |
127 | size = size * 2; | |
128 | ||
129 | p = XREALLOC (MTYPE_VTY_OUT_BUF, p, size); | |
130 | if (! p) | |
131 | return -1; | |
132 | ||
d246bd96 | 133 | va_start (args, format); |
718e3744 | 134 | len = vsnprintf (p, size, format, args); |
d246bd96 | 135 | va_end (args); |
718e3744 | 136 | |
137 | if (len > -1 && len < size) | |
138 | break; | |
139 | } | |
140 | } | |
141 | ||
142 | /* When initial buffer is enough to store all output. */ | |
143 | if (! p) | |
144 | p = buf; | |
145 | ||
146 | /* Pointer p must point out buffer. */ | |
9fc7ebf1 | 147 | buffer_put (vty->obuf, (u_char *) p, len); |
718e3744 | 148 | |
149 | /* If p is not different with buf, it is allocated buffer. */ | |
150 | if (p != buf) | |
151 | XFREE (MTYPE_VTY_OUT_BUF, p); | |
152 | } | |
153 | ||
718e3744 | 154 | return len; |
155 | } | |
156 | ||
d246bd96 | 157 | static int |
274a4a44 | 158 | vty_log_out (struct vty *vty, const char *level, const char *proto_str, |
1ed72e0b | 159 | const char *format, struct timestamp_control *ctl, va_list va) |
718e3744 | 160 | { |
9fc7ebf1 | 161 | int ret; |
718e3744 | 162 | int len; |
163 | char buf[1024]; | |
08942da5 | 164 | |
1ed72e0b AS |
165 | if (!ctl->already_rendered) |
166 | { | |
167 | ctl->len = quagga_timestamp(ctl->precision, ctl->buf, sizeof(ctl->buf)); | |
168 | ctl->already_rendered = 1; | |
169 | } | |
170 | if (ctl->len+1 >= sizeof(buf)) | |
171 | return -1; | |
172 | memcpy(buf, ctl->buf, len = ctl->len); | |
173 | buf[len++] = ' '; | |
174 | buf[len] = '\0'; | |
718e3744 | 175 | |
274a4a44 | 176 | if (level) |
08942da5 | 177 | ret = snprintf(buf+len, sizeof(buf)-len, "%s: %s: ", level, proto_str); |
274a4a44 | 178 | else |
08942da5 AS |
179 | ret = snprintf(buf+len, sizeof(buf)-len, "%s: ", proto_str); |
180 | if ((ret < 0) || ((size_t)(len += ret) >= sizeof(buf))) | |
9fc7ebf1 | 181 | return -1; |
718e3744 | 182 | |
9fc7ebf1 | 183 | if (((ret = vsnprintf(buf+len, sizeof(buf)-len, format, va)) < 0) || |
184 | ((size_t)((len += ret)+2) > sizeof(buf))) | |
718e3744 | 185 | return -1; |
718e3744 | 186 | |
9fc7ebf1 | 187 | buf[len++] = '\r'; |
188 | buf[len++] = '\n'; | |
718e3744 | 189 | |
c5e69a02 | 190 | if (write(vty->wfd, buf, len) < 0) |
9fc7ebf1 | 191 | { |
192 | if (ERRNO_IO_RETRY(errno)) | |
193 | /* Kernel buffer is full, probably too much debugging output, so just | |
194 | drop the data and ignore. */ | |
195 | return -1; | |
196 | /* Fatal I/O error. */ | |
74542d73 | 197 | vty->monitor = 0; /* disable monitoring to avoid infinite recursion */ |
9fc7ebf1 | 198 | zlog_warn("%s: write failed to vty client fd %d, closing: %s", |
199 | __func__, vty->fd, safe_strerror(errno)); | |
200 | buffer_reset(vty->obuf); | |
9d0a3260 AS |
201 | /* cannot call vty_close, because a parent routine may still try |
202 | to access the vty struct */ | |
203 | vty->status = VTY_CLOSE; | |
204 | shutdown(vty->fd, SHUT_RDWR); | |
9fc7ebf1 | 205 | return -1; |
206 | } | |
207 | return 0; | |
718e3744 | 208 | } |
209 | ||
210 | /* Output current time to the vty. */ | |
211 | void | |
212 | vty_time_print (struct vty *vty, int cr) | |
213 | { | |
ae616d60 | 214 | char buf[QUAGGA_TIMESTAMP_LEN]; |
718e3744 | 215 | |
1ed72e0b | 216 | if (quagga_timestamp(0, buf, sizeof(buf)) == 0) |
718e3744 | 217 | { |
1ed72e0b | 218 | zlog (NULL, LOG_INFO, "quagga_timestamp error"); |
718e3744 | 219 | return; |
220 | } | |
221 | if (cr) | |
222 | vty_out (vty, "%s\n", buf); | |
223 | else | |
224 | vty_out (vty, "%s ", buf); | |
225 | ||
226 | return; | |
227 | } | |
228 | ||
229 | /* Say hello to vty interface. */ | |
230 | void | |
231 | vty_hello (struct vty *vty) | |
232 | { | |
3b0c5d9a | 233 | if (host.motdfile) |
234 | { | |
235 | FILE *f; | |
236 | char buf[4096]; | |
22085181 | 237 | |
3b0c5d9a | 238 | f = fopen (host.motdfile, "r"); |
239 | if (f) | |
240 | { | |
b45da6f0 | 241 | while (fgets (buf, sizeof (buf), f)) |
3b0c5d9a | 242 | { |
b45da6f0 | 243 | char *s; |
22085181 | 244 | /* work backwards to ignore trailling isspace() */ |
f80a016f | 245 | for (s = buf + strlen (buf); (s > buf) && isspace ((int)*(s - 1)); |
22085181 | 246 | s--); |
247 | *s = '\0'; | |
248 | vty_out (vty, "%s%s", buf, VTY_NEWLINE); | |
249 | } | |
3b0c5d9a | 250 | fclose (f); |
251 | } | |
252 | else | |
b45da6f0 | 253 | vty_out (vty, "MOTD file not found%s", VTY_NEWLINE); |
3b0c5d9a | 254 | } |
255 | else if (host.motd) | |
b830c89a | 256 | vty_out (vty, "%s", host.motd); |
718e3744 | 257 | } |
258 | ||
259 | /* Put out prompt and wait input from user. */ | |
260 | static void | |
261 | vty_prompt (struct vty *vty) | |
262 | { | |
263 | struct utsname names; | |
264 | const char*hostname; | |
265 | ||
266 | if (vty->type == VTY_TERM) | |
267 | { | |
268 | hostname = host.name; | |
269 | if (!hostname) | |
270 | { | |
271 | uname (&names); | |
272 | hostname = names.nodename; | |
273 | } | |
274 | vty_out (vty, cmd_prompt (vty->node), hostname); | |
275 | } | |
276 | } | |
277 | ||
278 | /* Send WILL TELOPT_ECHO to remote server. */ | |
9fc7ebf1 | 279 | static void |
718e3744 | 280 | vty_will_echo (struct vty *vty) |
281 | { | |
02ff83c5 | 282 | unsigned char cmd[] = { IAC, WILL, TELOPT_ECHO, '\0' }; |
718e3744 | 283 | vty_out (vty, "%s", cmd); |
284 | } | |
285 | ||
286 | /* Make suppress Go-Ahead telnet option. */ | |
287 | static void | |
288 | vty_will_suppress_go_ahead (struct vty *vty) | |
289 | { | |
02ff83c5 | 290 | unsigned char cmd[] = { IAC, WILL, TELOPT_SGA, '\0' }; |
718e3744 | 291 | vty_out (vty, "%s", cmd); |
292 | } | |
293 | ||
294 | /* Make don't use linemode over telnet. */ | |
295 | static void | |
296 | vty_dont_linemode (struct vty *vty) | |
297 | { | |
02ff83c5 | 298 | unsigned char cmd[] = { IAC, DONT, TELOPT_LINEMODE, '\0' }; |
718e3744 | 299 | vty_out (vty, "%s", cmd); |
300 | } | |
301 | ||
302 | /* Use window size. */ | |
303 | static void | |
304 | vty_do_window_size (struct vty *vty) | |
305 | { | |
02ff83c5 | 306 | unsigned char cmd[] = { IAC, DO, TELOPT_NAWS, '\0' }; |
718e3744 | 307 | vty_out (vty, "%s", cmd); |
308 | } | |
309 | ||
310 | #if 0 /* Currently not used. */ | |
311 | /* Make don't use lflow vty interface. */ | |
312 | static void | |
313 | vty_dont_lflow_ahead (struct vty *vty) | |
314 | { | |
02ff83c5 | 315 | unsigned char cmd[] = { IAC, DONT, TELOPT_LFLOW, '\0' }; |
718e3744 | 316 | vty_out (vty, "%s", cmd); |
317 | } | |
318 | #endif /* 0 */ | |
319 | ||
320 | /* Allocate new vty struct. */ | |
321 | struct vty * | |
322 | vty_new () | |
323 | { | |
324 | struct vty *new = XCALLOC (MTYPE_VTY, sizeof (struct vty)); | |
325 | ||
9fc7ebf1 | 326 | new->obuf = buffer_new(0); /* Use default buffer size. */ |
718e3744 | 327 | new->buf = XCALLOC (MTYPE_VTY, VTY_BUFSIZ); |
5689fe5f | 328 | new->error_buf = XCALLOC (MTYPE_VTY, VTY_BUFSIZ); |
718e3744 | 329 | new->max = VTY_BUFSIZ; |
718e3744 | 330 | |
331 | return new; | |
332 | } | |
333 | ||
334 | /* Authentication of vty */ | |
335 | static void | |
336 | vty_auth (struct vty *vty, char *buf) | |
337 | { | |
338 | char *passwd = NULL; | |
339 | enum node_type next_node = 0; | |
340 | int fail; | |
341 | char *crypt (const char *, const char *); | |
342 | ||
343 | switch (vty->node) | |
344 | { | |
345 | case AUTH_NODE: | |
346 | if (host.encrypt) | |
347 | passwd = host.password_encrypt; | |
348 | else | |
349 | passwd = host.password; | |
350 | if (host.advanced) | |
351 | next_node = host.enable ? VIEW_NODE : ENABLE_NODE; | |
352 | else | |
353 | next_node = VIEW_NODE; | |
354 | break; | |
355 | case AUTH_ENABLE_NODE: | |
356 | if (host.encrypt) | |
357 | passwd = host.enable_encrypt; | |
358 | else | |
359 | passwd = host.enable; | |
360 | next_node = ENABLE_NODE; | |
361 | break; | |
362 | } | |
363 | ||
364 | if (passwd) | |
365 | { | |
366 | if (host.encrypt) | |
367 | fail = strcmp (crypt(buf, passwd), passwd); | |
368 | else | |
369 | fail = strcmp (buf, passwd); | |
370 | } | |
371 | else | |
372 | fail = 1; | |
373 | ||
374 | if (! fail) | |
375 | { | |
376 | vty->fail = 0; | |
377 | vty->node = next_node; /* Success ! */ | |
378 | } | |
379 | else | |
380 | { | |
381 | vty->fail++; | |
382 | if (vty->fail >= 3) | |
383 | { | |
384 | if (vty->node == AUTH_NODE) | |
385 | { | |
386 | vty_out (vty, "%% Bad passwords, too many failures!%s", VTY_NEWLINE); | |
387 | vty->status = VTY_CLOSE; | |
388 | } | |
389 | else | |
390 | { | |
391 | /* AUTH_ENABLE_NODE */ | |
392 | vty->fail = 0; | |
393 | vty_out (vty, "%% Bad enable passwords, too many failures!%s", VTY_NEWLINE); | |
3c8ab49f | 394 | vty->status = VTY_CLOSE; |
718e3744 | 395 | } |
396 | } | |
397 | } | |
398 | } | |
399 | ||
400 | /* Command execution over the vty interface. */ | |
9fc7ebf1 | 401 | static int |
718e3744 | 402 | vty_command (struct vty *vty, char *buf) |
403 | { | |
404 | int ret; | |
405 | vector vline; | |
fbf5d033 | 406 | const char *protocolname; |
da688ecd | 407 | char *cp = NULL; |
718e3744 | 408 | |
1035065f LB |
409 | /* |
410 | * Log non empty command lines | |
411 | */ | |
da688ecd LB |
412 | if (do_log_commands) |
413 | cp = buf; | |
1035065f LB |
414 | if (cp != NULL) |
415 | { | |
416 | /* Skip white spaces. */ | |
417 | while (isspace ((int) *cp) && *cp != '\0') | |
418 | cp++; | |
419 | } | |
420 | if (cp != NULL && *cp != '\0') | |
421 | { | |
422 | unsigned i; | |
423 | char vty_str[VTY_BUFSIZ]; | |
424 | char prompt_str[VTY_BUFSIZ]; | |
425 | ||
426 | /* format the base vty info */ | |
427 | snprintf(vty_str, sizeof(vty_str), "vty[??]@%s", vty->address); | |
428 | if (vty) | |
429 | for (i = 0; i < vector_active (vtyvec); i++) | |
430 | if (vty == vector_slot (vtyvec, i)) | |
431 | { | |
432 | snprintf(vty_str, sizeof(vty_str), "vty[%d]@%s", | |
433 | i, vty->address); | |
434 | break; | |
435 | } | |
436 | ||
437 | /* format the prompt */ | |
438 | snprintf(prompt_str, sizeof(prompt_str), cmd_prompt (vty->node), vty_str); | |
439 | ||
440 | /* now log the command */ | |
da688ecd | 441 | zlog(NULL, LOG_ERR, "%s%s", prompt_str, buf); |
1035065f | 442 | } |
718e3744 | 443 | /* Split readline string up into the vector */ |
444 | vline = cmd_make_strvec (buf); | |
445 | ||
446 | if (vline == NULL) | |
447 | return CMD_SUCCESS; | |
448 | ||
924b9229 | 449 | #ifdef CONSUMED_TIME_CHECK |
450 | { | |
451 | RUSAGE_T before; | |
452 | RUSAGE_T after; | |
8b70d0b0 | 453 | unsigned long realtime, cputime; |
924b9229 | 454 | |
455 | GETRUSAGE(&before); | |
456 | #endif /* CONSUMED_TIME_CHECK */ | |
457 | ||
87d683b0 | 458 | ret = cmd_execute_command (vline, vty, NULL, 0); |
718e3744 | 459 | |
fbf5d033 | 460 | /* Get the name of the protocol if any */ |
461 | if (zlog_default) | |
462 | protocolname = zlog_proto_names[zlog_default->protocol]; | |
463 | else | |
464 | protocolname = zlog_proto_names[ZLOG_NONE]; | |
465 | ||
924b9229 | 466 | #ifdef CONSUMED_TIME_CHECK |
467 | GETRUSAGE(&after); | |
8b70d0b0 | 468 | if ((realtime = thread_consumed_time(&after, &before, &cputime)) > |
469 | CONSUMED_TIME_CHECK) | |
924b9229 | 470 | /* Warn about CPU hog that must be fixed. */ |
8b70d0b0 | 471 | zlog_warn("SLOW COMMAND: command took %lums (cpu time %lums): %s", |
472 | realtime/1000, cputime/1000, buf); | |
924b9229 | 473 | } |
474 | #endif /* CONSUMED_TIME_CHECK */ | |
475 | ||
718e3744 | 476 | if (ret != CMD_SUCCESS) |
477 | switch (ret) | |
478 | { | |
479 | case CMD_WARNING: | |
480 | if (vty->type == VTY_FILE) | |
481 | vty_out (vty, "Warning...%s", VTY_NEWLINE); | |
482 | break; | |
483 | case CMD_ERR_AMBIGUOUS: | |
484 | vty_out (vty, "%% Ambiguous command.%s", VTY_NEWLINE); | |
485 | break; | |
486 | case CMD_ERR_NO_MATCH: | |
fbf5d033 | 487 | vty_out (vty, "%% [%s] Unknown command: %s%s", protocolname, buf, VTY_NEWLINE); |
718e3744 | 488 | break; |
489 | case CMD_ERR_INCOMPLETE: | |
490 | vty_out (vty, "%% Command incomplete.%s", VTY_NEWLINE); | |
491 | break; | |
492 | } | |
493 | cmd_free_strvec (vline); | |
494 | ||
495 | return ret; | |
496 | } | |
6b0655a2 | 497 | |
9fc7ebf1 | 498 | static const char telnet_backward_char = 0x08; |
499 | static const char telnet_space_char = ' '; | |
718e3744 | 500 | |
501 | /* Basic function to write buffer to vty. */ | |
502 | static void | |
9fc7ebf1 | 503 | vty_write (struct vty *vty, const char *buf, size_t nbytes) |
718e3744 | 504 | { |
505 | if ((vty->node == AUTH_NODE) || (vty->node == AUTH_ENABLE_NODE)) | |
506 | return; | |
507 | ||
508 | /* Should we do buffering here ? And make vty_flush (vty) ? */ | |
9fc7ebf1 | 509 | buffer_put (vty->obuf, buf, nbytes); |
718e3744 | 510 | } |
511 | ||
512 | /* Ensure length of input buffer. Is buffer is short, double it. */ | |
513 | static void | |
514 | vty_ensure (struct vty *vty, int length) | |
515 | { | |
516 | if (vty->max <= length) | |
517 | { | |
518 | vty->max *= 2; | |
519 | vty->buf = XREALLOC (MTYPE_VTY, vty->buf, vty->max); | |
5689fe5f | 520 | vty->error_buf = XREALLOC (MTYPE_VTY, vty->error_buf, vty->max); |
718e3744 | 521 | } |
522 | } | |
523 | ||
524 | /* Basic function to insert character into vty. */ | |
525 | static void | |
526 | vty_self_insert (struct vty *vty, char c) | |
527 | { | |
528 | int i; | |
529 | int length; | |
530 | ||
531 | vty_ensure (vty, vty->length + 1); | |
532 | length = vty->length - vty->cp; | |
533 | memmove (&vty->buf[vty->cp + 1], &vty->buf[vty->cp], length); | |
534 | vty->buf[vty->cp] = c; | |
535 | ||
536 | vty_write (vty, &vty->buf[vty->cp], length + 1); | |
537 | for (i = 0; i < length; i++) | |
538 | vty_write (vty, &telnet_backward_char, 1); | |
539 | ||
540 | vty->cp++; | |
541 | vty->length++; | |
542 | } | |
543 | ||
544 | /* Self insert character 'c' in overwrite mode. */ | |
545 | static void | |
546 | vty_self_insert_overwrite (struct vty *vty, char c) | |
547 | { | |
548 | vty_ensure (vty, vty->length + 1); | |
549 | vty->buf[vty->cp++] = c; | |
550 | ||
551 | if (vty->cp > vty->length) | |
552 | vty->length++; | |
553 | ||
554 | if ((vty->node == AUTH_NODE) || (vty->node == AUTH_ENABLE_NODE)) | |
555 | return; | |
556 | ||
557 | vty_write (vty, &c, 1); | |
558 | } | |
559 | ||
560 | /* Insert a word into vty interface with overwrite mode. */ | |
561 | static void | |
562 | vty_insert_word_overwrite (struct vty *vty, char *str) | |
563 | { | |
564 | int len = strlen (str); | |
565 | vty_write (vty, str, len); | |
566 | strcpy (&vty->buf[vty->cp], str); | |
567 | vty->cp += len; | |
568 | vty->length = vty->cp; | |
569 | } | |
570 | ||
571 | /* Forward character. */ | |
572 | static void | |
573 | vty_forward_char (struct vty *vty) | |
574 | { | |
575 | if (vty->cp < vty->length) | |
576 | { | |
577 | vty_write (vty, &vty->buf[vty->cp], 1); | |
578 | vty->cp++; | |
579 | } | |
580 | } | |
581 | ||
582 | /* Backward character. */ | |
583 | static void | |
584 | vty_backward_char (struct vty *vty) | |
585 | { | |
586 | if (vty->cp > 0) | |
587 | { | |
588 | vty->cp--; | |
589 | vty_write (vty, &telnet_backward_char, 1); | |
590 | } | |
591 | } | |
592 | ||
593 | /* Move to the beginning of the line. */ | |
594 | static void | |
595 | vty_beginning_of_line (struct vty *vty) | |
596 | { | |
597 | while (vty->cp) | |
598 | vty_backward_char (vty); | |
599 | } | |
600 | ||
601 | /* Move to the end of the line. */ | |
602 | static void | |
603 | vty_end_of_line (struct vty *vty) | |
604 | { | |
605 | while (vty->cp < vty->length) | |
606 | vty_forward_char (vty); | |
607 | } | |
608 | ||
609 | static void vty_kill_line_from_beginning (struct vty *); | |
610 | static void vty_redraw_line (struct vty *); | |
611 | ||
612 | /* Print command line history. This function is called from | |
613 | vty_next_line and vty_previous_line. */ | |
614 | static void | |
615 | vty_history_print (struct vty *vty) | |
616 | { | |
617 | int length; | |
618 | ||
619 | vty_kill_line_from_beginning (vty); | |
620 | ||
621 | /* Get previous line from history buffer */ | |
622 | length = strlen (vty->hist[vty->hp]); | |
623 | memcpy (vty->buf, vty->hist[vty->hp], length); | |
624 | vty->cp = vty->length = length; | |
625 | ||
626 | /* Redraw current line */ | |
627 | vty_redraw_line (vty); | |
628 | } | |
629 | ||
630 | /* Show next command line history. */ | |
9fc7ebf1 | 631 | static void |
718e3744 | 632 | vty_next_line (struct vty *vty) |
633 | { | |
634 | int try_index; | |
635 | ||
636 | if (vty->hp == vty->hindex) | |
637 | return; | |
638 | ||
639 | /* Try is there history exist or not. */ | |
640 | try_index = vty->hp; | |
641 | if (try_index == (VTY_MAXHIST - 1)) | |
642 | try_index = 0; | |
643 | else | |
644 | try_index++; | |
645 | ||
646 | /* If there is not history return. */ | |
647 | if (vty->hist[try_index] == NULL) | |
648 | return; | |
649 | else | |
650 | vty->hp = try_index; | |
651 | ||
652 | vty_history_print (vty); | |
653 | } | |
654 | ||
655 | /* Show previous command line history. */ | |
9fc7ebf1 | 656 | static void |
718e3744 | 657 | vty_previous_line (struct vty *vty) |
658 | { | |
659 | int try_index; | |
660 | ||
661 | try_index = vty->hp; | |
662 | if (try_index == 0) | |
663 | try_index = VTY_MAXHIST - 1; | |
664 | else | |
665 | try_index--; | |
666 | ||
667 | if (vty->hist[try_index] == NULL) | |
668 | return; | |
669 | else | |
670 | vty->hp = try_index; | |
671 | ||
672 | vty_history_print (vty); | |
673 | } | |
674 | ||
675 | /* This function redraw all of the command line character. */ | |
676 | static void | |
677 | vty_redraw_line (struct vty *vty) | |
678 | { | |
679 | vty_write (vty, vty->buf, vty->length); | |
680 | vty->cp = vty->length; | |
681 | } | |
682 | ||
683 | /* Forward word. */ | |
684 | static void | |
685 | vty_forward_word (struct vty *vty) | |
686 | { | |
687 | while (vty->cp != vty->length && vty->buf[vty->cp] != ' ') | |
688 | vty_forward_char (vty); | |
689 | ||
690 | while (vty->cp != vty->length && vty->buf[vty->cp] == ' ') | |
691 | vty_forward_char (vty); | |
692 | } | |
693 | ||
694 | /* Backward word without skipping training space. */ | |
695 | static void | |
696 | vty_backward_pure_word (struct vty *vty) | |
697 | { | |
698 | while (vty->cp > 0 && vty->buf[vty->cp - 1] != ' ') | |
699 | vty_backward_char (vty); | |
700 | } | |
701 | ||
702 | /* Backward word. */ | |
703 | static void | |
704 | vty_backward_word (struct vty *vty) | |
705 | { | |
706 | while (vty->cp > 0 && vty->buf[vty->cp - 1] == ' ') | |
707 | vty_backward_char (vty); | |
708 | ||
709 | while (vty->cp > 0 && vty->buf[vty->cp - 1] != ' ') | |
710 | vty_backward_char (vty); | |
711 | } | |
712 | ||
713 | /* When '^D' is typed at the beginning of the line we move to the down | |
714 | level. */ | |
715 | static void | |
716 | vty_down_level (struct vty *vty) | |
717 | { | |
718 | vty_out (vty, "%s", VTY_NEWLINE); | |
274a4a44 | 719 | (*config_exit_cmd.func)(NULL, vty, 0, NULL); |
718e3744 | 720 | vty_prompt (vty); |
721 | vty->cp = 0; | |
722 | } | |
723 | ||
724 | /* When '^Z' is received from vty, move down to the enable mode. */ | |
9fc7ebf1 | 725 | static void |
718e3744 | 726 | vty_end_config (struct vty *vty) |
727 | { | |
728 | vty_out (vty, "%s", VTY_NEWLINE); | |
729 | ||
730 | switch (vty->node) | |
731 | { | |
732 | case VIEW_NODE: | |
733 | case ENABLE_NODE: | |
734 | /* Nothing to do. */ | |
735 | break; | |
736 | case CONFIG_NODE: | |
737 | case INTERFACE_NODE: | |
738 | case ZEBRA_NODE: | |
739 | case RIP_NODE: | |
740 | case RIPNG_NODE: | |
741 | case BGP_NODE: | |
742 | case BGP_VPNV4_NODE: | |
8ecd3266 | 743 | case BGP_VPNV6_NODE: |
8b1fb8be LB |
744 | case BGP_ENCAP_NODE: |
745 | case BGP_ENCAPV6_NODE: | |
65efcfce LB |
746 | case BGP_VNC_DEFAULTS_NODE: |
747 | case BGP_VNC_NVE_GROUP_NODE: | |
748 | case BGP_VNC_L2_GROUP_NODE: | |
718e3744 | 749 | case BGP_IPV4_NODE: |
750 | case BGP_IPV4M_NODE: | |
751 | case BGP_IPV6_NODE: | |
1e836590 | 752 | case BGP_IPV6M_NODE: |
718e3744 | 753 | case RMAP_NODE: |
754 | case OSPF_NODE: | |
755 | case OSPF6_NODE: | |
eac6e3f0 RW |
756 | case LDP_NODE: |
757 | case LDP_IPV4_NODE: | |
758 | case LDP_IPV6_NODE: | |
759 | case LDP_IPV4_IFACE_NODE: | |
760 | case LDP_IPV6_IFACE_NODE: | |
761 | case LDP_L2VPN_NODE: | |
762 | case LDP_PSEUDOWIRE_NODE: | |
9e867fe6 | 763 | case ISIS_NODE: |
718e3744 | 764 | case KEYCHAIN_NODE: |
765 | case KEYCHAIN_KEY_NODE: | |
766 | case MASC_NODE: | |
12e41d03 | 767 | case PIM_NODE: |
718e3744 | 768 | case VTY_NODE: |
769 | vty_config_unlock (vty); | |
770 | vty->node = ENABLE_NODE; | |
771 | break; | |
772 | default: | |
773 | /* Unknown node, we have to ignore it. */ | |
774 | break; | |
775 | } | |
776 | ||
777 | vty_prompt (vty); | |
778 | vty->cp = 0; | |
779 | } | |
780 | ||
781 | /* Delete a charcter at the current point. */ | |
782 | static void | |
783 | vty_delete_char (struct vty *vty) | |
784 | { | |
785 | int i; | |
786 | int size; | |
787 | ||
718e3744 | 788 | if (vty->length == 0) |
789 | { | |
790 | vty_down_level (vty); | |
791 | return; | |
792 | } | |
793 | ||
794 | if (vty->cp == vty->length) | |
795 | return; /* completion need here? */ | |
796 | ||
797 | size = vty->length - vty->cp; | |
798 | ||
799 | vty->length--; | |
800 | memmove (&vty->buf[vty->cp], &vty->buf[vty->cp + 1], size - 1); | |
801 | vty->buf[vty->length] = '\0'; | |
7f794f2b R |
802 | |
803 | if (vty->node == AUTH_NODE || vty->node == AUTH_ENABLE_NODE) | |
804 | return; | |
718e3744 | 805 | |
806 | vty_write (vty, &vty->buf[vty->cp], size - 1); | |
807 | vty_write (vty, &telnet_space_char, 1); | |
808 | ||
809 | for (i = 0; i < size; i++) | |
810 | vty_write (vty, &telnet_backward_char, 1); | |
811 | } | |
812 | ||
813 | /* Delete a character before the point. */ | |
814 | static void | |
815 | vty_delete_backward_char (struct vty *vty) | |
816 | { | |
817 | if (vty->cp == 0) | |
818 | return; | |
819 | ||
820 | vty_backward_char (vty); | |
821 | vty_delete_char (vty); | |
822 | } | |
823 | ||
824 | /* Kill rest of line from current point. */ | |
825 | static void | |
826 | vty_kill_line (struct vty *vty) | |
827 | { | |
828 | int i; | |
829 | int size; | |
830 | ||
831 | size = vty->length - vty->cp; | |
832 | ||
833 | if (size == 0) | |
834 | return; | |
835 | ||
836 | for (i = 0; i < size; i++) | |
837 | vty_write (vty, &telnet_space_char, 1); | |
838 | for (i = 0; i < size; i++) | |
839 | vty_write (vty, &telnet_backward_char, 1); | |
840 | ||
841 | memset (&vty->buf[vty->cp], 0, size); | |
842 | vty->length = vty->cp; | |
843 | } | |
844 | ||
845 | /* Kill line from the beginning. */ | |
846 | static void | |
847 | vty_kill_line_from_beginning (struct vty *vty) | |
848 | { | |
849 | vty_beginning_of_line (vty); | |
850 | vty_kill_line (vty); | |
851 | } | |
852 | ||
853 | /* Delete a word before the point. */ | |
854 | static void | |
855 | vty_forward_kill_word (struct vty *vty) | |
856 | { | |
857 | while (vty->cp != vty->length && vty->buf[vty->cp] == ' ') | |
858 | vty_delete_char (vty); | |
859 | while (vty->cp != vty->length && vty->buf[vty->cp] != ' ') | |
860 | vty_delete_char (vty); | |
861 | } | |
862 | ||
863 | /* Delete a word before the point. */ | |
864 | static void | |
865 | vty_backward_kill_word (struct vty *vty) | |
866 | { | |
867 | while (vty->cp > 0 && vty->buf[vty->cp - 1] == ' ') | |
868 | vty_delete_backward_char (vty); | |
869 | while (vty->cp > 0 && vty->buf[vty->cp - 1] != ' ') | |
870 | vty_delete_backward_char (vty); | |
871 | } | |
872 | ||
873 | /* Transpose chars before or at the point. */ | |
874 | static void | |
875 | vty_transpose_chars (struct vty *vty) | |
876 | { | |
877 | char c1, c2; | |
878 | ||
879 | /* If length is short or point is near by the beginning of line then | |
880 | return. */ | |
881 | if (vty->length < 2 || vty->cp < 1) | |
882 | return; | |
883 | ||
884 | /* In case of point is located at the end of the line. */ | |
885 | if (vty->cp == vty->length) | |
886 | { | |
887 | c1 = vty->buf[vty->cp - 1]; | |
888 | c2 = vty->buf[vty->cp - 2]; | |
889 | ||
890 | vty_backward_char (vty); | |
891 | vty_backward_char (vty); | |
892 | vty_self_insert_overwrite (vty, c1); | |
893 | vty_self_insert_overwrite (vty, c2); | |
894 | } | |
895 | else | |
896 | { | |
897 | c1 = vty->buf[vty->cp]; | |
898 | c2 = vty->buf[vty->cp - 1]; | |
899 | ||
900 | vty_backward_char (vty); | |
901 | vty_self_insert_overwrite (vty, c1); | |
902 | vty_self_insert_overwrite (vty, c2); | |
903 | } | |
904 | } | |
905 | ||
906 | /* Do completion at vty interface. */ | |
907 | static void | |
908 | vty_complete_command (struct vty *vty) | |
909 | { | |
910 | int i; | |
911 | int ret; | |
912 | char **matched = NULL; | |
913 | vector vline; | |
914 | ||
915 | if (vty->node == AUTH_NODE || vty->node == AUTH_ENABLE_NODE) | |
916 | return; | |
917 | ||
918 | vline = cmd_make_strvec (vty->buf); | |
919 | if (vline == NULL) | |
920 | return; | |
921 | ||
922 | /* In case of 'help \t'. */ | |
923 | if (isspace ((int) vty->buf[vty->length - 1])) | |
7bf5d992 | 924 | vector_set (vline, NULL); |
718e3744 | 925 | |
cde9f101 | 926 | matched = cmd_complete_command_lib (vline, vty, &ret, 1); |
718e3744 | 927 | |
928 | cmd_free_strvec (vline); | |
929 | ||
930 | vty_out (vty, "%s", VTY_NEWLINE); | |
931 | switch (ret) | |
932 | { | |
933 | case CMD_ERR_AMBIGUOUS: | |
934 | vty_out (vty, "%% Ambiguous command.%s", VTY_NEWLINE); | |
935 | vty_prompt (vty); | |
936 | vty_redraw_line (vty); | |
937 | break; | |
938 | case CMD_ERR_NO_MATCH: | |
939 | /* vty_out (vty, "%% There is no matched command.%s", VTY_NEWLINE); */ | |
940 | vty_prompt (vty); | |
941 | vty_redraw_line (vty); | |
942 | break; | |
943 | case CMD_COMPLETE_FULL_MATCH: | |
944 | vty_prompt (vty); | |
945 | vty_redraw_line (vty); | |
946 | vty_backward_pure_word (vty); | |
947 | vty_insert_word_overwrite (vty, matched[0]); | |
948 | vty_self_insert (vty, ' '); | |
949 | XFREE (MTYPE_TMP, matched[0]); | |
950 | break; | |
951 | case CMD_COMPLETE_MATCH: | |
952 | vty_prompt (vty); | |
953 | vty_redraw_line (vty); | |
954 | vty_backward_pure_word (vty); | |
955 | vty_insert_word_overwrite (vty, matched[0]); | |
956 | XFREE (MTYPE_TMP, matched[0]); | |
957 | vector_only_index_free (matched); | |
958 | return; | |
959 | break; | |
960 | case CMD_COMPLETE_LIST_MATCH: | |
961 | for (i = 0; matched[i] != NULL; i++) | |
962 | { | |
963 | if (i != 0 && ((i % 6) == 0)) | |
964 | vty_out (vty, "%s", VTY_NEWLINE); | |
965 | vty_out (vty, "%-10s ", matched[i]); | |
966 | XFREE (MTYPE_TMP, matched[i]); | |
967 | } | |
968 | vty_out (vty, "%s", VTY_NEWLINE); | |
969 | ||
970 | vty_prompt (vty); | |
971 | vty_redraw_line (vty); | |
972 | break; | |
973 | case CMD_ERR_NOTHING_TODO: | |
974 | vty_prompt (vty); | |
975 | vty_redraw_line (vty); | |
976 | break; | |
977 | default: | |
978 | break; | |
979 | } | |
980 | if (matched) | |
981 | vector_only_index_free (matched); | |
982 | } | |
983 | ||
9fc7ebf1 | 984 | static void |
718e3744 | 985 | vty_describe_fold (struct vty *vty, int cmd_width, |
cd40b329 | 986 | unsigned int desc_width, struct cmd_token *token) |
718e3744 | 987 | { |
8c328f11 | 988 | char *buf; |
989 | const char *cmd, *p; | |
718e3744 | 990 | int pos; |
991 | ||
cd40b329 | 992 | cmd = token->cmd[0] == '.' ? token->cmd + 1 : token->cmd; |
718e3744 | 993 | |
994 | if (desc_width <= 0) | |
995 | { | |
cd40b329 | 996 | vty_out (vty, " %-*s %s%s", cmd_width, cmd, token->desc, VTY_NEWLINE); |
718e3744 | 997 | return; |
998 | } | |
999 | ||
cd40b329 | 1000 | buf = XCALLOC (MTYPE_TMP, strlen (token->desc) + 1); |
718e3744 | 1001 | |
cd40b329 | 1002 | for (p = token->desc; strlen (p) > desc_width; p += pos + 1) |
718e3744 | 1003 | { |
1004 | for (pos = desc_width; pos > 0; pos--) | |
1005 | if (*(p + pos) == ' ') | |
1006 | break; | |
1007 | ||
1008 | if (pos == 0) | |
1009 | break; | |
1010 | ||
1011 | strncpy (buf, p, pos); | |
1012 | buf[pos] = '\0'; | |
1013 | vty_out (vty, " %-*s %s%s", cmd_width, cmd, buf, VTY_NEWLINE); | |
1014 | ||
1015 | cmd = ""; | |
1016 | } | |
1017 | ||
1018 | vty_out (vty, " %-*s %s%s", cmd_width, cmd, p, VTY_NEWLINE); | |
1019 | ||
1020 | XFREE (MTYPE_TMP, buf); | |
1021 | } | |
1022 | ||
1023 | /* Describe matched command function. */ | |
1024 | static void | |
1025 | vty_describe_command (struct vty *vty) | |
1026 | { | |
1027 | int ret; | |
1028 | vector vline; | |
1029 | vector describe; | |
8c328f11 | 1030 | unsigned int i, width, desc_width; |
cd40b329 | 1031 | struct cmd_token *token, *token_cr = NULL; |
718e3744 | 1032 | |
1033 | vline = cmd_make_strvec (vty->buf); | |
1034 | ||
1035 | /* In case of '> ?'. */ | |
1036 | if (vline == NULL) | |
1037 | { | |
1038 | vline = vector_init (1); | |
7bf5d992 | 1039 | vector_set (vline, NULL); |
718e3744 | 1040 | } |
1041 | else | |
1042 | if (isspace ((int) vty->buf[vty->length - 1])) | |
7bf5d992 | 1043 | vector_set (vline, NULL); |
718e3744 | 1044 | |
1045 | describe = cmd_describe_command (vline, vty, &ret); | |
1046 | ||
1047 | vty_out (vty, "%s", VTY_NEWLINE); | |
1048 | ||
1049 | /* Ambiguous error. */ | |
1050 | switch (ret) | |
1051 | { | |
1052 | case CMD_ERR_AMBIGUOUS: | |
718e3744 | 1053 | vty_out (vty, "%% Ambiguous command.%s", VTY_NEWLINE); |
2fe8aba3 | 1054 | goto out; |
718e3744 | 1055 | break; |
1056 | case CMD_ERR_NO_MATCH: | |
718e3744 | 1057 | vty_out (vty, "%% There is no matched command.%s", VTY_NEWLINE); |
2fe8aba3 | 1058 | goto out; |
718e3744 | 1059 | break; |
1060 | } | |
1061 | ||
1062 | /* Get width of command string. */ | |
1063 | width = 0; | |
55468c86 | 1064 | for (i = 0; i < vector_active (describe); i++) |
cd40b329 | 1065 | if ((token = vector_slot (describe, i)) != NULL) |
718e3744 | 1066 | { |
8c328f11 | 1067 | unsigned int len; |
718e3744 | 1068 | |
cd40b329 | 1069 | if (token->cmd[0] == '\0') |
718e3744 | 1070 | continue; |
1071 | ||
cd40b329 CF |
1072 | len = strlen (token->cmd); |
1073 | if (token->cmd[0] == '.') | |
718e3744 | 1074 | len--; |
1075 | ||
1076 | if (width < len) | |
1077 | width = len; | |
1078 | } | |
1079 | ||
1080 | /* Get width of description string. */ | |
1081 | desc_width = vty->width - (width + 6); | |
1082 | ||
1083 | /* Print out description. */ | |
55468c86 | 1084 | for (i = 0; i < vector_active (describe); i++) |
cd40b329 | 1085 | if ((token = vector_slot (describe, i)) != NULL) |
718e3744 | 1086 | { |
cd40b329 | 1087 | if (token->cmd[0] == '\0') |
718e3744 | 1088 | continue; |
1089 | ||
cd40b329 | 1090 | if (strcmp (token->cmd, command_cr) == 0) |
718e3744 | 1091 | { |
cd40b329 | 1092 | token_cr = token; |
718e3744 | 1093 | continue; |
1094 | } | |
1095 | ||
cd40b329 | 1096 | if (!token->desc) |
718e3744 | 1097 | vty_out (vty, " %-s%s", |
cd40b329 | 1098 | token->cmd[0] == '.' ? token->cmd + 1 : token->cmd, |
718e3744 | 1099 | VTY_NEWLINE); |
cd40b329 | 1100 | else if (desc_width >= strlen (token->desc)) |
718e3744 | 1101 | vty_out (vty, " %-*s %s%s", width, |
cd40b329 CF |
1102 | token->cmd[0] == '.' ? token->cmd + 1 : token->cmd, |
1103 | token->desc, VTY_NEWLINE); | |
718e3744 | 1104 | else |
cd40b329 | 1105 | vty_describe_fold (vty, width, desc_width, token); |
718e3744 | 1106 | |
1107 | #if 0 | |
1108 | vty_out (vty, " %-*s %s%s", width | |
1109 | desc->cmd[0] == '.' ? desc->cmd + 1 : desc->cmd, | |
1110 | desc->str ? desc->str : "", VTY_NEWLINE); | |
1111 | #endif /* 0 */ | |
1112 | } | |
1113 | ||
cd40b329 | 1114 | if ((token = token_cr)) |
718e3744 | 1115 | { |
cd40b329 | 1116 | if (!token->desc) |
718e3744 | 1117 | vty_out (vty, " %-s%s", |
cd40b329 | 1118 | token->cmd[0] == '.' ? token->cmd + 1 : token->cmd, |
718e3744 | 1119 | VTY_NEWLINE); |
cd40b329 | 1120 | else if (desc_width >= strlen (token->desc)) |
718e3744 | 1121 | vty_out (vty, " %-*s %s%s", width, |
cd40b329 CF |
1122 | token->cmd[0] == '.' ? token->cmd + 1 : token->cmd, |
1123 | token->desc, VTY_NEWLINE); | |
718e3744 | 1124 | else |
cd40b329 | 1125 | vty_describe_fold (vty, width, desc_width, token); |
718e3744 | 1126 | } |
1127 | ||
2fe8aba3 | 1128 | out: |
718e3744 | 1129 | cmd_free_strvec (vline); |
d16e0433 PJ |
1130 | if (describe) |
1131 | vector_free (describe); | |
718e3744 | 1132 | |
1133 | vty_prompt (vty); | |
1134 | vty_redraw_line (vty); | |
1135 | } | |
1136 | ||
9fc7ebf1 | 1137 | static void |
718e3744 | 1138 | vty_clear_buf (struct vty *vty) |
1139 | { | |
1140 | memset (vty->buf, 0, vty->max); | |
1141 | } | |
1142 | ||
1143 | /* ^C stop current input and do not add command line to the history. */ | |
1144 | static void | |
1145 | vty_stop_input (struct vty *vty) | |
1146 | { | |
1147 | vty->cp = vty->length = 0; | |
1148 | vty_clear_buf (vty); | |
1149 | vty_out (vty, "%s", VTY_NEWLINE); | |
1150 | ||
1151 | switch (vty->node) | |
1152 | { | |
1153 | case VIEW_NODE: | |
1154 | case ENABLE_NODE: | |
1155 | /* Nothing to do. */ | |
1156 | break; | |
1157 | case CONFIG_NODE: | |
1158 | case INTERFACE_NODE: | |
1159 | case ZEBRA_NODE: | |
1160 | case RIP_NODE: | |
1161 | case RIPNG_NODE: | |
1162 | case BGP_NODE: | |
1163 | case RMAP_NODE: | |
1164 | case OSPF_NODE: | |
1165 | case OSPF6_NODE: | |
eac6e3f0 RW |
1166 | case LDP_NODE: |
1167 | case LDP_IPV4_NODE: | |
1168 | case LDP_IPV6_NODE: | |
1169 | case LDP_IPV4_IFACE_NODE: | |
1170 | case LDP_IPV6_IFACE_NODE: | |
1171 | case LDP_L2VPN_NODE: | |
1172 | case LDP_PSEUDOWIRE_NODE: | |
9e867fe6 | 1173 | case ISIS_NODE: |
718e3744 | 1174 | case KEYCHAIN_NODE: |
1175 | case KEYCHAIN_KEY_NODE: | |
1176 | case MASC_NODE: | |
12e41d03 | 1177 | case PIM_NODE: |
718e3744 | 1178 | case VTY_NODE: |
1179 | vty_config_unlock (vty); | |
1180 | vty->node = ENABLE_NODE; | |
1181 | break; | |
1182 | default: | |
1183 | /* Unknown node, we have to ignore it. */ | |
1184 | break; | |
1185 | } | |
1186 | vty_prompt (vty); | |
1187 | ||
1188 | /* Set history pointer to the latest one. */ | |
1189 | vty->hp = vty->hindex; | |
1190 | } | |
1191 | ||
1192 | /* Add current command line to the history buffer. */ | |
1193 | static void | |
1194 | vty_hist_add (struct vty *vty) | |
1195 | { | |
1196 | int index; | |
1197 | ||
1198 | if (vty->length == 0) | |
1199 | return; | |
1200 | ||
1201 | index = vty->hindex ? vty->hindex - 1 : VTY_MAXHIST - 1; | |
1202 | ||
1203 | /* Ignore the same string as previous one. */ | |
1204 | if (vty->hist[index]) | |
1205 | if (strcmp (vty->buf, vty->hist[index]) == 0) | |
1206 | { | |
1207 | vty->hp = vty->hindex; | |
1208 | return; | |
1209 | } | |
1210 | ||
1211 | /* Insert history entry. */ | |
1212 | if (vty->hist[vty->hindex]) | |
1213 | XFREE (MTYPE_VTY_HIST, vty->hist[vty->hindex]); | |
1214 | vty->hist[vty->hindex] = XSTRDUP (MTYPE_VTY_HIST, vty->buf); | |
1215 | ||
1216 | /* History index rotation. */ | |
1217 | vty->hindex++; | |
1218 | if (vty->hindex == VTY_MAXHIST) | |
1219 | vty->hindex = 0; | |
1220 | ||
1221 | vty->hp = vty->hindex; | |
1222 | } | |
1223 | ||
1224 | /* #define TELNET_OPTION_DEBUG */ | |
1225 | ||
1226 | /* Get telnet window size. */ | |
1227 | static int | |
1228 | vty_telnet_option (struct vty *vty, unsigned char *buf, int nbytes) | |
1229 | { | |
1230 | #ifdef TELNET_OPTION_DEBUG | |
1231 | int i; | |
1232 | ||
1233 | for (i = 0; i < nbytes; i++) | |
1234 | { | |
1235 | switch (buf[i]) | |
1236 | { | |
1237 | case IAC: | |
1238 | vty_out (vty, "IAC "); | |
1239 | break; | |
1240 | case WILL: | |
1241 | vty_out (vty, "WILL "); | |
1242 | break; | |
1243 | case WONT: | |
1244 | vty_out (vty, "WONT "); | |
1245 | break; | |
1246 | case DO: | |
1247 | vty_out (vty, "DO "); | |
1248 | break; | |
1249 | case DONT: | |
1250 | vty_out (vty, "DONT "); | |
1251 | break; | |
1252 | case SB: | |
1253 | vty_out (vty, "SB "); | |
1254 | break; | |
1255 | case SE: | |
1256 | vty_out (vty, "SE "); | |
1257 | break; | |
1258 | case TELOPT_ECHO: | |
1259 | vty_out (vty, "TELOPT_ECHO %s", VTY_NEWLINE); | |
1260 | break; | |
1261 | case TELOPT_SGA: | |
1262 | vty_out (vty, "TELOPT_SGA %s", VTY_NEWLINE); | |
1263 | break; | |
1264 | case TELOPT_NAWS: | |
1265 | vty_out (vty, "TELOPT_NAWS %s", VTY_NEWLINE); | |
1266 | break; | |
1267 | default: | |
1268 | vty_out (vty, "%x ", buf[i]); | |
1269 | break; | |
1270 | } | |
1271 | } | |
1272 | vty_out (vty, "%s", VTY_NEWLINE); | |
1273 | ||
1274 | #endif /* TELNET_OPTION_DEBUG */ | |
1275 | ||
1276 | switch (buf[0]) | |
1277 | { | |
1278 | case SB: | |
9fc7ebf1 | 1279 | vty->sb_len = 0; |
718e3744 | 1280 | vty->iac_sb_in_progress = 1; |
1281 | return 0; | |
1282 | break; | |
1283 | case SE: | |
1284 | { | |
5b8c1b0d | 1285 | if (!vty->iac_sb_in_progress) |
718e3744 | 1286 | return 0; |
1287 | ||
9fc7ebf1 | 1288 | if ((vty->sb_len == 0) || (vty->sb_buf[0] == '\0')) |
718e3744 | 1289 | { |
1290 | vty->iac_sb_in_progress = 0; | |
1291 | return 0; | |
1292 | } | |
9fc7ebf1 | 1293 | switch (vty->sb_buf[0]) |
718e3744 | 1294 | { |
1295 | case TELOPT_NAWS: | |
9fc7ebf1 | 1296 | if (vty->sb_len != TELNET_NAWS_SB_LEN) |
1297 | zlog_warn("RFC 1073 violation detected: telnet NAWS option " | |
1298 | "should send %d characters, but we received %lu", | |
1299 | TELNET_NAWS_SB_LEN, (u_long)vty->sb_len); | |
1300 | else if (sizeof(vty->sb_buf) < TELNET_NAWS_SB_LEN) | |
1301 | zlog_err("Bug detected: sizeof(vty->sb_buf) %lu < %d, " | |
1302 | "too small to handle the telnet NAWS option", | |
1303 | (u_long)sizeof(vty->sb_buf), TELNET_NAWS_SB_LEN); | |
1304 | else | |
1305 | { | |
1306 | vty->width = ((vty->sb_buf[1] << 8)|vty->sb_buf[2]); | |
1307 | vty->height = ((vty->sb_buf[3] << 8)|vty->sb_buf[4]); | |
1308 | #ifdef TELNET_OPTION_DEBUG | |
1309 | vty_out(vty, "TELNET NAWS window size negotiation completed: " | |
1310 | "width %d, height %d%s", | |
1311 | vty->width, vty->height, VTY_NEWLINE); | |
1312 | #endif | |
1313 | } | |
718e3744 | 1314 | break; |
1315 | } | |
1316 | vty->iac_sb_in_progress = 0; | |
1317 | return 0; | |
1318 | break; | |
1319 | } | |
1320 | default: | |
1321 | break; | |
1322 | } | |
1323 | return 1; | |
1324 | } | |
1325 | ||
1326 | /* Execute current command line. */ | |
1327 | static int | |
1328 | vty_execute (struct vty *vty) | |
1329 | { | |
1330 | int ret; | |
1331 | ||
1332 | ret = CMD_SUCCESS; | |
1333 | ||
1334 | switch (vty->node) | |
1335 | { | |
1336 | case AUTH_NODE: | |
1337 | case AUTH_ENABLE_NODE: | |
1338 | vty_auth (vty, vty->buf); | |
1339 | break; | |
1340 | default: | |
1341 | ret = vty_command (vty, vty->buf); | |
1342 | if (vty->type == VTY_TERM) | |
1343 | vty_hist_add (vty); | |
1344 | break; | |
1345 | } | |
1346 | ||
1347 | /* Clear command line buffer. */ | |
1348 | vty->cp = vty->length = 0; | |
1349 | vty_clear_buf (vty); | |
1350 | ||
5a646650 | 1351 | if (vty->status != VTY_CLOSE ) |
718e3744 | 1352 | vty_prompt (vty); |
1353 | ||
1354 | return ret; | |
1355 | } | |
1356 | ||
1357 | #define CONTROL(X) ((X) - '@') | |
1358 | #define VTY_NORMAL 0 | |
1359 | #define VTY_PRE_ESCAPE 1 | |
1360 | #define VTY_ESCAPE 2 | |
1361 | ||
1362 | /* Escape character command map. */ | |
1363 | static void | |
1364 | vty_escape_map (unsigned char c, struct vty *vty) | |
1365 | { | |
1366 | switch (c) | |
1367 | { | |
1368 | case ('A'): | |
1369 | vty_previous_line (vty); | |
1370 | break; | |
1371 | case ('B'): | |
1372 | vty_next_line (vty); | |
1373 | break; | |
1374 | case ('C'): | |
1375 | vty_forward_char (vty); | |
1376 | break; | |
1377 | case ('D'): | |
1378 | vty_backward_char (vty); | |
1379 | break; | |
1380 | default: | |
1381 | break; | |
1382 | } | |
1383 | ||
1384 | /* Go back to normal mode. */ | |
1385 | vty->escape = VTY_NORMAL; | |
1386 | } | |
1387 | ||
1388 | /* Quit print out to the buffer. */ | |
1389 | static void | |
1390 | vty_buffer_reset (struct vty *vty) | |
1391 | { | |
1392 | buffer_reset (vty->obuf); | |
1393 | vty_prompt (vty); | |
1394 | vty_redraw_line (vty); | |
1395 | } | |
1396 | ||
1397 | /* Read data via vty socket. */ | |
1398 | static int | |
1399 | vty_read (struct thread *thread) | |
1400 | { | |
1401 | int i; | |
718e3744 | 1402 | int nbytes; |
1403 | unsigned char buf[VTY_READ_BUFSIZ]; | |
1404 | ||
1405 | int vty_sock = THREAD_FD (thread); | |
1406 | struct vty *vty = THREAD_ARG (thread); | |
1407 | vty->t_read = NULL; | |
1408 | ||
1409 | /* Read raw data from socket */ | |
9fc7ebf1 | 1410 | if ((nbytes = read (vty->fd, buf, VTY_READ_BUFSIZ)) <= 0) |
1411 | { | |
1412 | if (nbytes < 0) | |
1413 | { | |
1414 | if (ERRNO_IO_RETRY(errno)) | |
1415 | { | |
1416 | vty_event (VTY_READ, vty_sock, vty); | |
1417 | return 0; | |
1418 | } | |
74542d73 | 1419 | vty->monitor = 0; /* disable monitoring to avoid infinite recursion */ |
9fc7ebf1 | 1420 | zlog_warn("%s: read error on vty client fd %d, closing: %s", |
1421 | __func__, vty->fd, safe_strerror(errno)); | |
009a4a07 | 1422 | buffer_reset(vty->obuf); |
9fc7ebf1 | 1423 | } |
9fc7ebf1 | 1424 | vty->status = VTY_CLOSE; |
1425 | } | |
718e3744 | 1426 | |
1427 | for (i = 0; i < nbytes; i++) | |
1428 | { | |
1429 | if (buf[i] == IAC) | |
1430 | { | |
1431 | if (!vty->iac) | |
1432 | { | |
1433 | vty->iac = 1; | |
1434 | continue; | |
1435 | } | |
1436 | else | |
1437 | { | |
1438 | vty->iac = 0; | |
1439 | } | |
1440 | } | |
1441 | ||
1442 | if (vty->iac_sb_in_progress && !vty->iac) | |
1443 | { | |
9fc7ebf1 | 1444 | if (vty->sb_len < sizeof(vty->sb_buf)) |
1445 | vty->sb_buf[vty->sb_len] = buf[i]; | |
1446 | vty->sb_len++; | |
718e3744 | 1447 | continue; |
1448 | } | |
1449 | ||
1450 | if (vty->iac) | |
1451 | { | |
1452 | /* In case of telnet command */ | |
5b8c1b0d | 1453 | int ret = 0; |
e937253b | 1454 | ret = vty_telnet_option (vty, buf + i, nbytes - i); |
718e3744 | 1455 | vty->iac = 0; |
1456 | i += ret; | |
1457 | continue; | |
1458 | } | |
5b8c1b0d | 1459 | |
718e3744 | 1460 | |
1461 | if (vty->status == VTY_MORE) | |
1462 | { | |
1463 | switch (buf[i]) | |
1464 | { | |
1465 | case CONTROL('C'): | |
1466 | case 'q': | |
1467 | case 'Q': | |
718e3744 | 1468 | vty_buffer_reset (vty); |
1469 | break; | |
1470 | #if 0 /* More line does not work for "show ip bgp". */ | |
1471 | case '\n': | |
1472 | case '\r': | |
1473 | vty->status = VTY_MORELINE; | |
1474 | break; | |
1475 | #endif | |
1476 | default: | |
718e3744 | 1477 | break; |
1478 | } | |
1479 | continue; | |
1480 | } | |
1481 | ||
1482 | /* Escape character. */ | |
1483 | if (vty->escape == VTY_ESCAPE) | |
1484 | { | |
1485 | vty_escape_map (buf[i], vty); | |
1486 | continue; | |
1487 | } | |
1488 | ||
1489 | /* Pre-escape status. */ | |
1490 | if (vty->escape == VTY_PRE_ESCAPE) | |
1491 | { | |
1492 | switch (buf[i]) | |
1493 | { | |
1494 | case '[': | |
1495 | vty->escape = VTY_ESCAPE; | |
1496 | break; | |
1497 | case 'b': | |
1498 | vty_backward_word (vty); | |
1499 | vty->escape = VTY_NORMAL; | |
1500 | break; | |
1501 | case 'f': | |
1502 | vty_forward_word (vty); | |
1503 | vty->escape = VTY_NORMAL; | |
1504 | break; | |
1505 | case 'd': | |
1506 | vty_forward_kill_word (vty); | |
1507 | vty->escape = VTY_NORMAL; | |
1508 | break; | |
1509 | case CONTROL('H'): | |
1510 | case 0x7f: | |
1511 | vty_backward_kill_word (vty); | |
1512 | vty->escape = VTY_NORMAL; | |
1513 | break; | |
1514 | default: | |
1515 | vty->escape = VTY_NORMAL; | |
1516 | break; | |
1517 | } | |
1518 | continue; | |
1519 | } | |
1520 | ||
1521 | switch (buf[i]) | |
1522 | { | |
1523 | case CONTROL('A'): | |
1524 | vty_beginning_of_line (vty); | |
1525 | break; | |
1526 | case CONTROL('B'): | |
1527 | vty_backward_char (vty); | |
1528 | break; | |
1529 | case CONTROL('C'): | |
1530 | vty_stop_input (vty); | |
1531 | break; | |
1532 | case CONTROL('D'): | |
1533 | vty_delete_char (vty); | |
1534 | break; | |
1535 | case CONTROL('E'): | |
1536 | vty_end_of_line (vty); | |
1537 | break; | |
1538 | case CONTROL('F'): | |
1539 | vty_forward_char (vty); | |
1540 | break; | |
1541 | case CONTROL('H'): | |
1542 | case 0x7f: | |
1543 | vty_delete_backward_char (vty); | |
1544 | break; | |
1545 | case CONTROL('K'): | |
1546 | vty_kill_line (vty); | |
1547 | break; | |
1548 | case CONTROL('N'): | |
1549 | vty_next_line (vty); | |
1550 | break; | |
1551 | case CONTROL('P'): | |
1552 | vty_previous_line (vty); | |
1553 | break; | |
1554 | case CONTROL('T'): | |
1555 | vty_transpose_chars (vty); | |
1556 | break; | |
1557 | case CONTROL('U'): | |
1558 | vty_kill_line_from_beginning (vty); | |
1559 | break; | |
1560 | case CONTROL('W'): | |
1561 | vty_backward_kill_word (vty); | |
1562 | break; | |
1563 | case CONTROL('Z'): | |
1564 | vty_end_config (vty); | |
1565 | break; | |
1566 | case '\n': | |
1567 | case '\r': | |
1568 | vty_out (vty, "%s", VTY_NEWLINE); | |
1569 | vty_execute (vty); | |
1570 | break; | |
1571 | case '\t': | |
1572 | vty_complete_command (vty); | |
1573 | break; | |
1574 | case '?': | |
1575 | if (vty->node == AUTH_NODE || vty->node == AUTH_ENABLE_NODE) | |
1576 | vty_self_insert (vty, buf[i]); | |
1577 | else | |
1578 | vty_describe_command (vty); | |
1579 | break; | |
1580 | case '\033': | |
1581 | if (i + 1 < nbytes && buf[i + 1] == '[') | |
1582 | { | |
1583 | vty->escape = VTY_ESCAPE; | |
1584 | i++; | |
1585 | } | |
1586 | else | |
1587 | vty->escape = VTY_PRE_ESCAPE; | |
1588 | break; | |
1589 | default: | |
1590 | if (buf[i] > 31 && buf[i] < 127) | |
1591 | vty_self_insert (vty, buf[i]); | |
1592 | break; | |
1593 | } | |
1594 | } | |
1595 | ||
1596 | /* Check status. */ | |
1597 | if (vty->status == VTY_CLOSE) | |
1598 | vty_close (vty); | |
1599 | else | |
1600 | { | |
c5e69a02 | 1601 | vty_event (VTY_WRITE, vty->wfd, vty); |
718e3744 | 1602 | vty_event (VTY_READ, vty_sock, vty); |
1603 | } | |
1604 | return 0; | |
1605 | } | |
1606 | ||
1607 | /* Flush buffer to the vty. */ | |
1608 | static int | |
1609 | vty_flush (struct thread *thread) | |
1610 | { | |
1611 | int erase; | |
9fc7ebf1 | 1612 | buffer_status_t flushrc; |
718e3744 | 1613 | int vty_sock = THREAD_FD (thread); |
1614 | struct vty *vty = THREAD_ARG (thread); | |
9fc7ebf1 | 1615 | |
718e3744 | 1616 | vty->t_write = NULL; |
1617 | ||
1618 | /* Tempolary disable read thread. */ | |
9fc7ebf1 | 1619 | if ((vty->lines == 0) && vty->t_read) |
1620 | { | |
1621 | thread_cancel (vty->t_read); | |
1622 | vty->t_read = NULL; | |
1623 | } | |
718e3744 | 1624 | |
1625 | /* Function execution continue. */ | |
9fc7ebf1 | 1626 | erase = ((vty->status == VTY_MORE || vty->status == VTY_MORELINE)); |
1627 | ||
1628 | /* N.B. if width is 0, that means we don't know the window size. */ | |
1035065f | 1629 | if ((vty->lines == 0) || (vty->width == 0) || (vty->height == 0)) |
c5e69a02 | 1630 | flushrc = buffer_flush_available(vty->obuf, vty_sock); |
9fc7ebf1 | 1631 | else if (vty->status == VTY_MORELINE) |
c5e69a02 | 1632 | flushrc = buffer_flush_window(vty->obuf, vty_sock, vty->width, |
9fc7ebf1 | 1633 | 1, erase, 0); |
1634 | else | |
c5e69a02 | 1635 | flushrc = buffer_flush_window(vty->obuf, vty_sock, vty->width, |
9fc7ebf1 | 1636 | vty->lines >= 0 ? vty->lines : |
1637 | vty->height, | |
1638 | erase, 0); | |
1639 | switch (flushrc) | |
1640 | { | |
1641 | case BUFFER_ERROR: | |
74542d73 | 1642 | vty->monitor = 0; /* disable monitoring to avoid infinite recursion */ |
9fc7ebf1 | 1643 | zlog_warn("buffer_flush failed on vty client fd %d, closing", |
1644 | vty->fd); | |
1645 | buffer_reset(vty->obuf); | |
1646 | vty_close(vty); | |
1647 | return 0; | |
1648 | case BUFFER_EMPTY: | |
1649 | if (vty->status == VTY_CLOSE) | |
1650 | vty_close (vty); | |
718e3744 | 1651 | else |
1652 | { | |
9fc7ebf1 | 1653 | vty->status = VTY_NORMAL; |
718e3744 | 1654 | if (vty->lines == 0) |
9fc7ebf1 | 1655 | vty_event (VTY_READ, vty_sock, vty); |
718e3744 | 1656 | } |
9fc7ebf1 | 1657 | break; |
1658 | case BUFFER_PENDING: | |
1659 | /* There is more data waiting to be written. */ | |
1660 | vty->status = VTY_MORE; | |
1661 | if (vty->lines == 0) | |
1662 | vty_event (VTY_WRITE, vty_sock, vty); | |
1663 | break; | |
1664 | } | |
718e3744 | 1665 | |
1666 | return 0; | |
1667 | } | |
1668 | ||
b7642925 DL |
1669 | /* allocate and initialise vty */ |
1670 | static struct vty * | |
1671 | vty_new_init (int vty_sock) | |
1672 | { | |
1673 | struct vty *vty; | |
1674 | ||
1675 | vty = vty_new (); | |
1676 | vty->fd = vty_sock; | |
1677 | vty->wfd = vty_sock; | |
1678 | vty->type = VTY_TERM; | |
1679 | vty->node = AUTH_NODE; | |
1680 | vty->fail = 0; | |
1681 | vty->cp = 0; | |
1682 | vty_clear_buf (vty); | |
1683 | vty->length = 0; | |
1684 | memset (vty->hist, 0, sizeof (vty->hist)); | |
1685 | vty->hp = 0; | |
1686 | vty->hindex = 0; | |
1687 | vector_set_index (vtyvec, vty_sock, vty); | |
1688 | vty->status = VTY_NORMAL; | |
1689 | vty->lines = -1; | |
1690 | vty->iac = 0; | |
1691 | vty->iac_sb_in_progress = 0; | |
1692 | vty->sb_len = 0; | |
1693 | ||
1694 | return vty; | |
1695 | } | |
1696 | ||
718e3744 | 1697 | /* Create new vty structure. */ |
9fc7ebf1 | 1698 | static struct vty * |
718e3744 | 1699 | vty_create (int vty_sock, union sockunion *su) |
1700 | { | |
d227617a | 1701 | char buf[SU_ADDRSTRLEN]; |
718e3744 | 1702 | struct vty *vty; |
1703 | ||
d227617a JBD |
1704 | sockunion2str(su, buf, SU_ADDRSTRLEN); |
1705 | ||
718e3744 | 1706 | /* Allocate new vty structure and set up default values. */ |
b7642925 DL |
1707 | vty = vty_new_init (vty_sock); |
1708 | ||
1709 | /* configurable parameters not part of basic init */ | |
1710 | vty->v_timeout = vty_timeout_val; | |
d227617a | 1711 | strcpy (vty->address, buf); |
718e3744 | 1712 | if (no_password_check) |
1713 | { | |
3c8ab49f | 1714 | if (host.advanced) |
718e3744 | 1715 | vty->node = ENABLE_NODE; |
1716 | else | |
1717 | vty->node = VIEW_NODE; | |
1718 | } | |
718e3744 | 1719 | if (host.lines >= 0) |
1720 | vty->lines = host.lines; | |
718e3744 | 1721 | |
1722 | if (! no_password_check) | |
1723 | { | |
1724 | /* Vty is not available if password isn't set. */ | |
1725 | if (host.password == NULL && host.password_encrypt == NULL) | |
1726 | { | |
1727 | vty_out (vty, "Vty password is not set.%s", VTY_NEWLINE); | |
1728 | vty->status = VTY_CLOSE; | |
1729 | vty_close (vty); | |
1730 | return NULL; | |
1731 | } | |
1732 | } | |
1733 | ||
1734 | /* Say hello to the world. */ | |
1735 | vty_hello (vty); | |
1736 | if (! no_password_check) | |
1737 | vty_out (vty, "%sUser Access Verification%s%s", VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE); | |
1738 | ||
1739 | /* Setting up terminal. */ | |
1740 | vty_will_echo (vty); | |
1741 | vty_will_suppress_go_ahead (vty); | |
1742 | ||
1743 | vty_dont_linemode (vty); | |
1744 | vty_do_window_size (vty); | |
1745 | /* vty_dont_lflow_ahead (vty); */ | |
1746 | ||
1747 | vty_prompt (vty); | |
1748 | ||
1749 | /* Add read/write thread. */ | |
1750 | vty_event (VTY_WRITE, vty_sock, vty); | |
1751 | vty_event (VTY_READ, vty_sock, vty); | |
1752 | ||
1753 | return vty; | |
1754 | } | |
1755 | ||
b7642925 | 1756 | /* create vty for stdio */ |
b510a06e DL |
1757 | static struct termios stdio_orig_termios; |
1758 | static struct vty *stdio_vty = NULL; | |
dbf78092 | 1759 | static void (*stdio_vty_atclose)(void); |
b510a06e DL |
1760 | |
1761 | static void | |
1762 | vty_stdio_reset (void) | |
1763 | { | |
1764 | if (stdio_vty) | |
1765 | { | |
1766 | tcsetattr (0, TCSANOW, &stdio_orig_termios); | |
1767 | stdio_vty = NULL; | |
dbf78092 DL |
1768 | |
1769 | if (stdio_vty_atclose) | |
1770 | stdio_vty_atclose (); | |
1771 | stdio_vty_atclose = NULL; | |
b510a06e DL |
1772 | } |
1773 | } | |
1774 | ||
b7642925 | 1775 | struct vty * |
dbf78092 | 1776 | vty_stdio (void (*atclose)()) |
b7642925 DL |
1777 | { |
1778 | struct vty *vty; | |
b510a06e | 1779 | struct termios termios; |
b7642925 | 1780 | |
b510a06e DL |
1781 | /* refuse creating two vtys on stdio */ |
1782 | if (stdio_vty) | |
1783 | return NULL; | |
1784 | ||
1785 | vty = stdio_vty = vty_new_init (0); | |
dbf78092 | 1786 | stdio_vty_atclose = atclose; |
b7642925 DL |
1787 | vty->wfd = 1; |
1788 | ||
1789 | /* always have stdio vty in a known _unchangeable_ state, don't want config | |
1790 | * to have any effect here to make sure scripting this works as intended */ | |
1791 | vty->node = ENABLE_NODE; | |
1792 | vty->v_timeout = 0; | |
1793 | strcpy (vty->address, "console"); | |
1794 | ||
b510a06e DL |
1795 | if (!tcgetattr (0, &stdio_orig_termios)) |
1796 | { | |
1797 | termios = stdio_orig_termios; | |
1798 | termios.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | |
1799 | | INLCR | IGNCR | ICRNL | IXON); | |
1800 | termios.c_oflag &= ~OPOST; | |
1801 | termios.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN); | |
1802 | termios.c_cflag &= ~(CSIZE | PARENB); | |
1803 | termios.c_cflag |= CS8; | |
1804 | tcsetattr (0, TCSANOW, &termios); | |
1805 | } | |
1806 | ||
b7642925 DL |
1807 | vty_prompt (vty); |
1808 | ||
1809 | /* Add read/write thread. */ | |
1810 | vty_event (VTY_WRITE, 1, vty); | |
1811 | vty_event (VTY_READ, 0, vty); | |
1812 | ||
1813 | return vty; | |
1814 | } | |
1815 | ||
718e3744 | 1816 | /* Accept connection from the network. */ |
1817 | static int | |
1818 | vty_accept (struct thread *thread) | |
1819 | { | |
1820 | int vty_sock; | |
718e3744 | 1821 | union sockunion su; |
1822 | int ret; | |
1823 | unsigned int on; | |
1824 | int accept_sock; | |
40ee54a7 | 1825 | struct prefix p; |
718e3744 | 1826 | struct access_list *acl = NULL; |
d227617a | 1827 | char buf[SU_ADDRSTRLEN]; |
718e3744 | 1828 | |
1829 | accept_sock = THREAD_FD (thread); | |
1830 | ||
1831 | /* We continue hearing vty socket. */ | |
1832 | vty_event (VTY_SERV, accept_sock, NULL); | |
1833 | ||
1834 | memset (&su, 0, sizeof (union sockunion)); | |
1835 | ||
1836 | /* We can handle IPv4 or IPv6 socket. */ | |
1837 | vty_sock = sockunion_accept (accept_sock, &su); | |
1838 | if (vty_sock < 0) | |
1839 | { | |
6099b3b5 | 1840 | zlog_warn ("can't accept vty socket : %s", safe_strerror (errno)); |
718e3744 | 1841 | return -1; |
1842 | } | |
9fc7ebf1 | 1843 | set_nonblocking(vty_sock); |
2da59394 | 1844 | set_cloexec(vty_sock); |
718e3744 | 1845 | |
40ee54a7 | 1846 | sockunion2hostprefix (&su, &p); |
718e3744 | 1847 | |
1848 | /* VTY's accesslist apply. */ | |
40ee54a7 | 1849 | if (p.family == AF_INET && vty_accesslist_name) |
718e3744 | 1850 | { |
1851 | if ((acl = access_list_lookup (AFI_IP, vty_accesslist_name)) && | |
40ee54a7 | 1852 | (access_list_apply (acl, &p) == FILTER_DENY)) |
718e3744 | 1853 | { |
718e3744 | 1854 | zlog (NULL, LOG_INFO, "Vty connection refused from %s", |
d227617a | 1855 | sockunion2str (&su, buf, SU_ADDRSTRLEN)); |
718e3744 | 1856 | close (vty_sock); |
1857 | ||
1858 | /* continue accepting connections */ | |
1859 | vty_event (VTY_SERV, accept_sock, NULL); | |
1860 | ||
718e3744 | 1861 | return 0; |
1862 | } | |
1863 | } | |
1864 | ||
1865 | #ifdef HAVE_IPV6 | |
1866 | /* VTY's ipv6 accesslist apply. */ | |
40ee54a7 | 1867 | if (p.family == AF_INET6 && vty_ipv6_accesslist_name) |
718e3744 | 1868 | { |
1869 | if ((acl = access_list_lookup (AFI_IP6, vty_ipv6_accesslist_name)) && | |
40ee54a7 | 1870 | (access_list_apply (acl, &p) == FILTER_DENY)) |
718e3744 | 1871 | { |
718e3744 | 1872 | zlog (NULL, LOG_INFO, "Vty connection refused from %s", |
d227617a | 1873 | sockunion2str (&su, buf, SU_ADDRSTRLEN)); |
718e3744 | 1874 | close (vty_sock); |
1875 | ||
1876 | /* continue accepting connections */ | |
1877 | vty_event (VTY_SERV, accept_sock, NULL); | |
1878 | ||
718e3744 | 1879 | return 0; |
1880 | } | |
1881 | } | |
1882 | #endif /* HAVE_IPV6 */ | |
1883 | ||
718e3744 | 1884 | on = 1; |
1885 | ret = setsockopt (vty_sock, IPPROTO_TCP, TCP_NODELAY, | |
1886 | (char *) &on, sizeof (on)); | |
1887 | if (ret < 0) | |
1888 | zlog (NULL, LOG_INFO, "can't set sockopt to vty_sock : %s", | |
6099b3b5 | 1889 | safe_strerror (errno)); |
718e3744 | 1890 | |
78e6cd98 | 1891 | zlog (NULL, LOG_INFO, "Vty connection from %s", |
d227617a | 1892 | sockunion2str (&su, buf, SU_ADDRSTRLEN)); |
78e6cd98 | 1893 | |
9206f9ec | 1894 | vty_create (vty_sock, &su); |
718e3744 | 1895 | |
1896 | return 0; | |
1897 | } | |
1898 | ||
1cbb5dfc | 1899 | #ifdef HAVE_IPV6 |
9fc7ebf1 | 1900 | static void |
718e3744 | 1901 | vty_serv_sock_addrinfo (const char *hostname, unsigned short port) |
1902 | { | |
1903 | int ret; | |
1904 | struct addrinfo req; | |
1905 | struct addrinfo *ainfo; | |
1906 | struct addrinfo *ainfo_save; | |
1907 | int sock; | |
1908 | char port_str[BUFSIZ]; | |
1909 | ||
1910 | memset (&req, 0, sizeof (struct addrinfo)); | |
1911 | req.ai_flags = AI_PASSIVE; | |
1912 | req.ai_family = AF_UNSPEC; | |
1913 | req.ai_socktype = SOCK_STREAM; | |
1914 | sprintf (port_str, "%d", port); | |
1915 | port_str[sizeof (port_str) - 1] = '\0'; | |
1916 | ||
1917 | ret = getaddrinfo (hostname, port_str, &req, &ainfo); | |
1918 | ||
1919 | if (ret != 0) | |
1920 | { | |
1921 | fprintf (stderr, "getaddrinfo failed: %s\n", gai_strerror (ret)); | |
1922 | exit (1); | |
1923 | } | |
1924 | ||
1925 | ainfo_save = ainfo; | |
1926 | ||
1927 | do | |
1928 | { | |
1929 | if (ainfo->ai_family != AF_INET | |
1930 | #ifdef HAVE_IPV6 | |
1931 | && ainfo->ai_family != AF_INET6 | |
1932 | #endif /* HAVE_IPV6 */ | |
1933 | ) | |
1934 | continue; | |
1935 | ||
1936 | sock = socket (ainfo->ai_family, ainfo->ai_socktype, ainfo->ai_protocol); | |
1937 | if (sock < 0) | |
1938 | continue; | |
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) | |
1947 | { | |
1948 | close (sock); /* Avoid sd leak. */ | |
1949 | continue; | |
1950 | } | |
1951 | ||
1952 | ret = listen (sock, 3); | |
1953 | if (ret < 0) | |
1954 | { | |
1955 | close (sock); /* Avoid sd leak. */ | |
1956 | continue; | |
1957 | } | |
1958 | ||
1959 | vty_event (VTY_SERV, sock, NULL); | |
1960 | } | |
1961 | while ((ainfo = ainfo->ai_next) != NULL); | |
1962 | ||
1963 | freeaddrinfo (ainfo_save); | |
1964 | } | |
1cbb5dfc | 1965 | #else /* HAVE_IPV6 */ |
718e3744 | 1966 | |
1967 | /* Make vty server socket. */ | |
9fc7ebf1 | 1968 | static void |
29db05b4 | 1969 | vty_serv_sock_family (const char* addr, unsigned short port, int family) |
718e3744 | 1970 | { |
1971 | int ret; | |
1972 | union sockunion su; | |
1973 | int accept_sock; | |
29db05b4 | 1974 | void* naddr=NULL; |
718e3744 | 1975 | |
1976 | memset (&su, 0, sizeof (union sockunion)); | |
1977 | su.sa.sa_family = family; | |
29db05b4 | 1978 | if(addr) |
1979 | switch(family) | |
1980 | { | |
1981 | case AF_INET: | |
1982 | naddr=&su.sin.sin_addr; | |
a11e012e | 1983 | break; |
29db05b4 | 1984 | #ifdef HAVE_IPV6 |
1985 | case AF_INET6: | |
1986 | naddr=&su.sin6.sin6_addr; | |
a11e012e | 1987 | break; |
29db05b4 | 1988 | #endif |
1989 | } | |
1990 | ||
1991 | if(naddr) | |
1992 | switch(inet_pton(family,addr,naddr)) | |
1993 | { | |
1994 | case -1: | |
1995 | zlog_err("bad address %s",addr); | |
1996 | naddr=NULL; | |
1997 | break; | |
1998 | case 0: | |
6099b3b5 | 1999 | zlog_err("error translating address %s: %s",addr,safe_strerror(errno)); |
29db05b4 | 2000 | naddr=NULL; |
2001 | } | |
718e3744 | 2002 | |
2003 | /* Make new socket. */ | |
2004 | accept_sock = sockunion_stream_socket (&su); | |
2005 | if (accept_sock < 0) | |
2006 | return; | |
2007 | ||
2008 | /* This is server, so reuse address. */ | |
2009 | sockopt_reuseaddr (accept_sock); | |
2010 | sockopt_reuseport (accept_sock); | |
2da59394 | 2011 | set_cloexec (accept_sock); |
718e3744 | 2012 | |
2013 | /* Bind socket to universal address and given port. */ | |
29db05b4 | 2014 | ret = sockunion_bind (accept_sock, &su, port, naddr); |
718e3744 | 2015 | if (ret < 0) |
2016 | { | |
29db05b4 | 2017 | zlog_warn("can't bind socket"); |
718e3744 | 2018 | close (accept_sock); /* Avoid sd leak. */ |
2019 | return; | |
2020 | } | |
2021 | ||
2022 | /* Listen socket under queue 3. */ | |
2023 | ret = listen (accept_sock, 3); | |
2024 | if (ret < 0) | |
2025 | { | |
2026 | zlog (NULL, LOG_WARNING, "can't listen socket"); | |
2027 | close (accept_sock); /* Avoid sd leak. */ | |
2028 | return; | |
2029 | } | |
2030 | ||
2031 | /* Add vty server event. */ | |
2032 | vty_event (VTY_SERV, accept_sock, NULL); | |
2033 | } | |
1cbb5dfc | 2034 | #endif /* HAVE_IPV6 */ |
718e3744 | 2035 | |
2036 | #ifdef VTYSH | |
2037 | /* For sockaddr_un. */ | |
2038 | #include <sys/un.h> | |
2039 | ||
2040 | /* VTY shell UNIX domain socket. */ | |
9fc7ebf1 | 2041 | static void |
6ad96ea1 | 2042 | vty_serv_un (const char *path) |
718e3744 | 2043 | { |
2044 | int ret; | |
75e15fe4 | 2045 | int sock, len; |
718e3744 | 2046 | struct sockaddr_un serv; |
2047 | mode_t old_mask; | |
edd7c245 | 2048 | struct zprivs_ids_t ids; |
2049 | ||
718e3744 | 2050 | /* First of all, unlink existing socket */ |
2051 | unlink (path); | |
2052 | ||
2053 | /* Set umask */ | |
1921e6f8 | 2054 | old_mask = umask (0007); |
718e3744 | 2055 | |
2056 | /* Make UNIX domain socket. */ | |
2057 | sock = socket (AF_UNIX, SOCK_STREAM, 0); | |
2058 | if (sock < 0) | |
2059 | { | |
6a52d0d1 | 2060 | zlog_err("Cannot create unix stream socket: %s", safe_strerror(errno)); |
718e3744 | 2061 | return; |
2062 | } | |
2063 | ||
2064 | /* Make server socket. */ | |
2065 | memset (&serv, 0, sizeof (struct sockaddr_un)); | |
2066 | serv.sun_family = AF_UNIX; | |
2067 | strncpy (serv.sun_path, path, strlen (path)); | |
6f0e3f6e | 2068 | #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN |
718e3744 | 2069 | len = serv.sun_len = SUN_LEN(&serv); |
2070 | #else | |
2071 | len = sizeof (serv.sun_family) + strlen (serv.sun_path); | |
6f0e3f6e | 2072 | #endif /* HAVE_STRUCT_SOCKADDR_UN_SUN_LEN */ |
718e3744 | 2073 | |
2da59394 DL |
2074 | set_cloexec (sock); |
2075 | ||
718e3744 | 2076 | ret = bind (sock, (struct sockaddr *) &serv, len); |
2077 | if (ret < 0) | |
2078 | { | |
6a52d0d1 | 2079 | zlog_err("Cannot bind path %s: %s", path, safe_strerror(errno)); |
718e3744 | 2080 | close (sock); /* Avoid sd leak. */ |
2081 | return; | |
2082 | } | |
2083 | ||
2084 | ret = listen (sock, 5); | |
2085 | if (ret < 0) | |
2086 | { | |
6a52d0d1 | 2087 | zlog_err("listen(fd %d) failed: %s", sock, safe_strerror(errno)); |
718e3744 | 2088 | close (sock); /* Avoid sd leak. */ |
2089 | return; | |
2090 | } | |
2091 | ||
2092 | umask (old_mask); | |
2093 | ||
edd7c245 | 2094 | zprivs_get_ids(&ids); |
2095 | ||
2096 | if (ids.gid_vty > 0) | |
2097 | { | |
2098 | /* set group of socket */ | |
2099 | if ( chown (path, -1, ids.gid_vty) ) | |
2100 | { | |
2101 | zlog_err ("vty_serv_un: could chown socket, %s", | |
6099b3b5 | 2102 | safe_strerror (errno) ); |
edd7c245 | 2103 | } |
2104 | } | |
2105 | ||
718e3744 | 2106 | vty_event (VTYSH_SERV, sock, NULL); |
2107 | } | |
2108 | ||
2109 | /* #define VTYSH_DEBUG 1 */ | |
2110 | ||
2111 | static int | |
2112 | vtysh_accept (struct thread *thread) | |
2113 | { | |
2114 | int accept_sock; | |
2115 | int sock; | |
2116 | int client_len; | |
2117 | struct sockaddr_un client; | |
2118 | struct vty *vty; | |
2119 | ||
2120 | accept_sock = THREAD_FD (thread); | |
2121 | ||
2122 | vty_event (VTYSH_SERV, accept_sock, NULL); | |
2123 | ||
2124 | memset (&client, 0, sizeof (struct sockaddr_un)); | |
2125 | client_len = sizeof (struct sockaddr_un); | |
2126 | ||
e473b032 | 2127 | sock = accept (accept_sock, (struct sockaddr *) &client, |
2128 | (socklen_t *) &client_len); | |
718e3744 | 2129 | |
2130 | if (sock < 0) | |
2131 | { | |
6099b3b5 | 2132 | zlog_warn ("can't accept vty socket : %s", safe_strerror (errno)); |
718e3744 | 2133 | return -1; |
2134 | } | |
2135 | ||
9fc7ebf1 | 2136 | if (set_nonblocking(sock) < 0) |
75e15fe4 | 2137 | { |
9fc7ebf1 | 2138 | zlog_warn ("vtysh_accept: could not set vty socket %d to non-blocking," |
2139 | " %s, closing", sock, safe_strerror (errno)); | |
75e15fe4 | 2140 | close (sock); |
2141 | return -1; | |
2142 | } | |
2da59394 DL |
2143 | set_cloexec(sock); |
2144 | ||
718e3744 | 2145 | #ifdef VTYSH_DEBUG |
2146 | printf ("VTY shell accept\n"); | |
2147 | #endif /* VTYSH_DEBUG */ | |
2148 | ||
2149 | vty = vty_new (); | |
2150 | vty->fd = sock; | |
c5e69a02 | 2151 | vty->wfd = sock; |
718e3744 | 2152 | vty->type = VTY_SHELL_SERV; |
2153 | vty->node = VIEW_NODE; | |
2154 | ||
2155 | vty_event (VTYSH_READ, sock, vty); | |
2156 | ||
2157 | return 0; | |
2158 | } | |
2159 | ||
9fc7ebf1 | 2160 | static int |
2161 | vtysh_flush(struct vty *vty) | |
2162 | { | |
c5e69a02 | 2163 | switch (buffer_flush_available(vty->obuf, vty->wfd)) |
9fc7ebf1 | 2164 | { |
2165 | case BUFFER_PENDING: | |
c5e69a02 | 2166 | vty_event(VTYSH_WRITE, vty->wfd, vty); |
9fc7ebf1 | 2167 | break; |
2168 | case BUFFER_ERROR: | |
74542d73 | 2169 | vty->monitor = 0; /* disable monitoring to avoid infinite recursion */ |
9fc7ebf1 | 2170 | zlog_warn("%s: write error to fd %d, closing", __func__, vty->fd); |
2171 | buffer_reset(vty->obuf); | |
2172 | vty_close(vty); | |
2173 | return -1; | |
2174 | break; | |
2175 | case BUFFER_EMPTY: | |
2176 | break; | |
2177 | } | |
2178 | return 0; | |
2179 | } | |
2180 | ||
718e3744 | 2181 | static int |
2182 | vtysh_read (struct thread *thread) | |
2183 | { | |
2184 | int ret; | |
2185 | int sock; | |
2186 | int nbytes; | |
2187 | struct vty *vty; | |
2188 | unsigned char buf[VTY_READ_BUFSIZ]; | |
9fc7ebf1 | 2189 | unsigned char *p; |
718e3744 | 2190 | u_char header[4] = {0, 0, 0, 0}; |
2191 | ||
2192 | sock = THREAD_FD (thread); | |
2193 | vty = THREAD_ARG (thread); | |
2194 | vty->t_read = NULL; | |
2195 | ||
9fc7ebf1 | 2196 | if ((nbytes = read (sock, buf, VTY_READ_BUFSIZ)) <= 0) |
718e3744 | 2197 | { |
9fc7ebf1 | 2198 | if (nbytes < 0) |
2199 | { | |
2200 | if (ERRNO_IO_RETRY(errno)) | |
2201 | { | |
2202 | vty_event (VTYSH_READ, sock, vty); | |
2203 | return 0; | |
2204 | } | |
74542d73 | 2205 | vty->monitor = 0; /* disable monitoring to avoid infinite recursion */ |
9fc7ebf1 | 2206 | zlog_warn("%s: read failed on vtysh client fd %d, closing: %s", |
2207 | __func__, sock, safe_strerror(errno)); | |
2208 | } | |
2209 | buffer_reset(vty->obuf); | |
718e3744 | 2210 | vty_close (vty); |
2211 | #ifdef VTYSH_DEBUG | |
2212 | printf ("close vtysh\n"); | |
2213 | #endif /* VTYSH_DEBUG */ | |
2214 | return 0; | |
2215 | } | |
2216 | ||
2217 | #ifdef VTYSH_DEBUG | |
9fc7ebf1 | 2218 | printf ("line: %.*s\n", nbytes, buf); |
718e3744 | 2219 | #endif /* VTYSH_DEBUG */ |
2220 | ||
9fc7ebf1 | 2221 | for (p = buf; p < buf+nbytes; p++) |
2222 | { | |
2223 | vty_ensure(vty, vty->length+1); | |
2224 | vty->buf[vty->length++] = *p; | |
2225 | if (*p == '\0') | |
2226 | { | |
2227 | /* Pass this line to parser. */ | |
2228 | ret = vty_execute (vty); | |
2229 | /* Note that vty_execute clears the command buffer and resets | |
2230 | vty->length to 0. */ | |
718e3744 | 2231 | |
9fc7ebf1 | 2232 | /* Return result. */ |
718e3744 | 2233 | #ifdef VTYSH_DEBUG |
9fc7ebf1 | 2234 | printf ("result: %d\n", ret); |
2235 | printf ("vtysh node: %d\n", vty->node); | |
718e3744 | 2236 | #endif /* VTYSH_DEBUG */ |
2237 | ||
95c4aff2 DL |
2238 | /* hack for asynchronous "write integrated" |
2239 | * - other commands in "buf" will be ditched | |
2240 | * - input during pending config-write is "unsupported" */ | |
2241 | if (ret == CMD_SUSPEND) | |
2242 | break; | |
2243 | ||
2244 | /* warning: watchquagga hardcodes this result write */ | |
9fc7ebf1 | 2245 | header[3] = ret; |
2246 | buffer_put(vty->obuf, header, 4); | |
2247 | ||
2248 | if (!vty->t_write && (vtysh_flush(vty) < 0)) | |
2249 | /* Try to flush results; exit if a write error occurs. */ | |
2250 | return 0; | |
2251 | } | |
2252 | } | |
718e3744 | 2253 | |
2254 | vty_event (VTYSH_READ, sock, vty); | |
2255 | ||
2256 | return 0; | |
2257 | } | |
49ff6d9d | 2258 | |
2259 | static int | |
2260 | vtysh_write (struct thread *thread) | |
2261 | { | |
2262 | struct vty *vty = THREAD_ARG (thread); | |
2263 | ||
2264 | vty->t_write = NULL; | |
9fc7ebf1 | 2265 | vtysh_flush(vty); |
976d8c73 | 2266 | return 0; |
49ff6d9d | 2267 | } |
2268 | ||
718e3744 | 2269 | #endif /* VTYSH */ |
2270 | ||
2271 | /* Determine address family to bind. */ | |
2272 | void | |
6ad96ea1 | 2273 | vty_serv_sock (const char *addr, unsigned short port, const char *path) |
718e3744 | 2274 | { |
2275 | /* If port is set to 0, do not listen on TCP/IP at all! */ | |
2276 | if (port) | |
2277 | { | |
2278 | ||
2279 | #ifdef HAVE_IPV6 | |
29db05b4 | 2280 | vty_serv_sock_addrinfo (addr, port); |
718e3744 | 2281 | #else /* ! HAVE_IPV6 */ |
29db05b4 | 2282 | vty_serv_sock_family (addr,port, AF_INET); |
718e3744 | 2283 | #endif /* HAVE_IPV6 */ |
2284 | } | |
2285 | ||
2286 | #ifdef VTYSH | |
2287 | vty_serv_un (path); | |
2288 | #endif /* VTYSH */ | |
2289 | } | |
2290 | ||
9d0a3260 AS |
2291 | /* Close vty interface. Warning: call this only from functions that |
2292 | will be careful not to access the vty afterwards (since it has | |
2293 | now been freed). This is safest from top-level functions (called | |
2294 | directly by the thread dispatcher). */ | |
718e3744 | 2295 | void |
2296 | vty_close (struct vty *vty) | |
2297 | { | |
2298 | int i; | |
2299 | ||
2300 | /* Cancel threads.*/ | |
2301 | if (vty->t_read) | |
2302 | thread_cancel (vty->t_read); | |
2303 | if (vty->t_write) | |
2304 | thread_cancel (vty->t_write); | |
2305 | if (vty->t_timeout) | |
2306 | thread_cancel (vty->t_timeout); | |
718e3744 | 2307 | |
2308 | /* Flush buffer. */ | |
c5e69a02 | 2309 | buffer_flush_all (vty->obuf, vty->wfd); |
718e3744 | 2310 | |
2311 | /* Free input buffer. */ | |
2312 | buffer_free (vty->obuf); | |
2313 | ||
718e3744 | 2314 | /* Free command history. */ |
2315 | for (i = 0; i < VTY_MAXHIST; i++) | |
2316 | if (vty->hist[i]) | |
2317 | XFREE (MTYPE_VTY_HIST, vty->hist[i]); | |
2318 | ||
2319 | /* Unset vector. */ | |
2320 | vector_unset (vtyvec, vty->fd); | |
2321 | ||
2322 | /* Close socket. */ | |
2323 | if (vty->fd > 0) | |
2324 | close (vty->fd); | |
b510a06e DL |
2325 | else |
2326 | vty_stdio_reset (); | |
718e3744 | 2327 | |
718e3744 | 2328 | if (vty->buf) |
2329 | XFREE (MTYPE_VTY, vty->buf); | |
2330 | ||
5689fe5f DW |
2331 | if (vty->error_buf) |
2332 | XFREE (MTYPE_VTY, vty->error_buf); | |
2333 | ||
718e3744 | 2334 | /* Check configure. */ |
2335 | vty_config_unlock (vty); | |
2336 | ||
2337 | /* OK free vty. */ | |
2338 | XFREE (MTYPE_VTY, vty); | |
2339 | } | |
2340 | ||
2341 | /* When time out occur output message then close connection. */ | |
2342 | static int | |
2343 | vty_timeout (struct thread *thread) | |
2344 | { | |
2345 | struct vty *vty; | |
2346 | ||
2347 | vty = THREAD_ARG (thread); | |
2348 | vty->t_timeout = NULL; | |
2349 | vty->v_timeout = 0; | |
2350 | ||
2351 | /* Clear buffer*/ | |
2352 | buffer_reset (vty->obuf); | |
2353 | vty_out (vty, "%sVty connection is timed out.%s", VTY_NEWLINE, VTY_NEWLINE); | |
2354 | ||
2355 | /* Close connection. */ | |
2356 | vty->status = VTY_CLOSE; | |
2357 | vty_close (vty); | |
2358 | ||
2359 | return 0; | |
2360 | } | |
2361 | ||
2362 | /* Read up configuration file from file_name. */ | |
2363 | static void | |
2364 | vty_read_file (FILE *confp) | |
2365 | { | |
2366 | int ret; | |
2367 | struct vty *vty; | |
13fbc82d | 2368 | unsigned int line_num = 0; |
718e3744 | 2369 | |
2370 | vty = vty_new (); | |
c5e69a02 DL |
2371 | vty->wfd = dup(STDERR_FILENO); /* vty_close() will close this */ |
2372 | if (vty->wfd < 0) | |
13fbc82d SH |
2373 | { |
2374 | /* Fine, we couldn't make a new fd. vty_close doesn't close stdout. */ | |
c5e69a02 | 2375 | vty->wfd = STDOUT_FILENO; |
13fbc82d | 2376 | } |
c5e69a02 | 2377 | vty->fd = STDIN_FILENO; |
13fbc82d | 2378 | vty->type = VTY_FILE; |
718e3744 | 2379 | vty->node = CONFIG_NODE; |
2380 | ||
2381 | /* Execute configuration file */ | |
13fbc82d SH |
2382 | ret = config_from_file (vty, confp, &line_num); |
2383 | ||
2384 | /* Flush any previous errors before printing messages below */ | |
2385 | buffer_flush_all (vty->obuf, vty->fd); | |
718e3744 | 2386 | |
7021c425 | 2387 | if ( !((ret == CMD_SUCCESS) || (ret == CMD_ERR_NOTHING_TODO)) ) |
718e3744 | 2388 | { |
2389 | switch (ret) | |
7021c425 | 2390 | { |
2391 | case CMD_ERR_AMBIGUOUS: | |
13fbc82d | 2392 | fprintf (stderr, "*** Error reading config: Ambiguous command.\n"); |
7021c425 | 2393 | break; |
2394 | case CMD_ERR_NO_MATCH: | |
13fbc82d | 2395 | fprintf (stderr, "*** Error reading config: There is no such command.\n"); |
7021c425 | 2396 | break; |
2397 | } | |
13fbc82d SH |
2398 | fprintf (stderr, "*** Error occured processing line %u, below:\n%s\n", |
2399 | line_num, vty->error_buf); | |
718e3744 | 2400 | } |
2401 | ||
2402 | vty_close (vty); | |
2403 | } | |
2404 | ||
9fc7ebf1 | 2405 | static FILE * |
718e3744 | 2406 | vty_use_backup_config (char *fullpath) |
2407 | { | |
2408 | char *fullpath_sav, *fullpath_tmp; | |
2409 | FILE *ret = NULL; | |
2410 | struct stat buf; | |
2411 | int tmp, sav; | |
2412 | int c; | |
2413 | char buffer[512]; | |
2414 | ||
2415 | fullpath_sav = malloc (strlen (fullpath) + strlen (CONF_BACKUP_EXT) + 1); | |
2416 | strcpy (fullpath_sav, fullpath); | |
2417 | strcat (fullpath_sav, CONF_BACKUP_EXT); | |
2418 | if (stat (fullpath_sav, &buf) == -1) | |
2419 | { | |
2420 | free (fullpath_sav); | |
2421 | return NULL; | |
2422 | } | |
2423 | ||
2424 | fullpath_tmp = malloc (strlen (fullpath) + 8); | |
2425 | sprintf (fullpath_tmp, "%s.XXXXXX", fullpath); | |
2426 | ||
2427 | /* Open file to configuration write. */ | |
2428 | tmp = mkstemp (fullpath_tmp); | |
2429 | if (tmp < 0) | |
2430 | { | |
2431 | free (fullpath_sav); | |
2432 | free (fullpath_tmp); | |
2433 | return NULL; | |
2434 | } | |
2435 | ||
2436 | sav = open (fullpath_sav, O_RDONLY); | |
2437 | if (sav < 0) | |
2438 | { | |
3dbf9969 | 2439 | unlink (fullpath_tmp); |
718e3744 | 2440 | free (fullpath_sav); |
2441 | free (fullpath_tmp); | |
718e3744 | 2442 | return NULL; |
2443 | } | |
2444 | ||
2445 | while((c = read (sav, buffer, 512)) > 0) | |
77f24551 DS |
2446 | { |
2447 | if (write (tmp, buffer, c) <= 0) | |
2448 | { | |
2449 | free (fullpath_sav); | |
2450 | free (fullpath_tmp); | |
2451 | close (sav); | |
2452 | close (tmp); | |
2453 | return NULL; | |
2454 | } | |
2455 | } | |
718e3744 | 2456 | close (sav); |
2457 | close (tmp); | |
2458 | ||
aa593d5e | 2459 | if (chmod(fullpath_tmp, CONFIGFILE_MASK) != 0) |
2460 | { | |
3dbf9969 | 2461 | unlink (fullpath_tmp); |
aa593d5e | 2462 | free (fullpath_sav); |
2463 | free (fullpath_tmp); | |
aa593d5e | 2464 | return NULL; |
2465 | } | |
2466 | ||
718e3744 | 2467 | if (link (fullpath_tmp, fullpath) == 0) |
2468 | ret = fopen (fullpath, "r"); | |
2469 | ||
2470 | unlink (fullpath_tmp); | |
2471 | ||
2472 | free (fullpath_sav); | |
2473 | free (fullpath_tmp); | |
12f6ea23 | 2474 | return ret; |
718e3744 | 2475 | } |
2476 | ||
2477 | /* Read up configuration file from file_name. */ | |
2478 | void | |
2479 | vty_read_config (char *config_file, | |
320ec10a | 2480 | char *config_default_dir) |
718e3744 | 2481 | { |
ccc9235e | 2482 | char cwd[MAXPATHLEN]; |
718e3744 | 2483 | FILE *confp = NULL; |
2484 | char *fullpath; | |
05865c90 | 2485 | char *tmp = NULL; |
718e3744 | 2486 | |
2487 | /* If -f flag specified. */ | |
2488 | if (config_file != NULL) | |
2489 | { | |
2490 | if (! IS_DIRECTORY_SEP (config_file[0])) | |
320ec10a | 2491 | { |
77f24551 DS |
2492 | if (getcwd (cwd, MAXPATHLEN) == NULL) |
2493 | { | |
2494 | fprintf (stderr, "Failure to determine Current Working Directory %d!\n", errno); | |
2495 | exit (1); | |
2496 | } | |
05865c90 | 2497 | tmp = XMALLOC (MTYPE_TMP, |
320ec10a | 2498 | strlen (cwd) + strlen (config_file) + 2); |
05865c90 | 2499 | sprintf (tmp, "%s/%s", cwd, config_file); |
2500 | fullpath = tmp; | |
320ec10a | 2501 | } |
718e3744 | 2502 | else |
320ec10a | 2503 | fullpath = config_file; |
718e3744 | 2504 | |
2505 | confp = fopen (fullpath, "r"); | |
2506 | ||
2507 | if (confp == NULL) | |
320ec10a | 2508 | { |
3d1dc857 | 2509 | fprintf (stderr, "%s: failed to open configuration file %s: %s\n", |
2510 | __func__, fullpath, safe_strerror (errno)); | |
2511 | ||
320ec10a | 2512 | confp = vty_use_backup_config (fullpath); |
2513 | if (confp) | |
2514 | fprintf (stderr, "WARNING: using backup configuration file!\n"); | |
2515 | else | |
2516 | { | |
2517 | fprintf (stderr, "can't open configuration file [%s]\n", | |
3d1dc857 | 2518 | config_file); |
320ec10a | 2519 | exit(1); |
2520 | } | |
2521 | } | |
718e3744 | 2522 | } |
2523 | else | |
2524 | { | |
a7222276 | 2525 | |
e4421165 | 2526 | host_config_set (config_default_dir); |
a7222276 | 2527 | |
718e3744 | 2528 | #ifdef VTYSH |
320ec10a | 2529 | int ret; |
2530 | struct stat conf_stat; | |
2531 | ||
2532 | /* !!!!PLEASE LEAVE!!!! | |
2533 | * This is NEEDED for use with vtysh -b, or else you can get | |
2534 | * a real configuration food fight with a lot garbage in the | |
2535 | * merged configuration file it creates coming from the per | |
2536 | * daemon configuration files. This also allows the daemons | |
2537 | * to start if there default configuration file is not | |
2538 | * present or ignore them, as needed when using vtysh -b to | |
2539 | * configure the daemons at boot - MAG | |
2540 | */ | |
2541 | ||
2542 | /* Stat for vtysh Zebra.conf, if found startup and wait for | |
2543 | * boot configuration | |
2544 | */ | |
2545 | ||
2546 | if ( strstr(config_default_dir, "vtysh") == NULL) | |
2547 | { | |
2548 | ret = stat (integrate_default, &conf_stat); | |
2549 | if (ret >= 0) | |
6eda6425 | 2550 | goto tmp_free_and_out; |
320ec10a | 2551 | } |
a7222276 | 2552 | #endif /* VTYSH */ |
e4421165 DS |
2553 | confp = fopen (config_default_dir, "r"); |
2554 | if (confp == NULL) | |
2555 | { | |
2556 | fprintf (stderr, "%s: failed to open configuration file %s: %s\n", | |
2557 | __func__, config_default_dir, safe_strerror (errno)); | |
7ce2a26c | 2558 | |
e4421165 DS |
2559 | confp = vty_use_backup_config (config_default_dir); |
2560 | if (confp) | |
2561 | { | |
2562 | fprintf (stderr, "WARNING: using backup configuration file!\n"); | |
2563 | fullpath = config_default_dir; | |
2564 | } | |
2565 | else | |
2566 | { | |
2567 | fprintf (stderr, "can't open configuration file [%s]\n", | |
6eda6425 DS |
2568 | config_default_dir); |
2569 | goto tmp_free_and_out; | |
e4421165 | 2570 | } |
7ce2a26c | 2571 | } |
e4421165 DS |
2572 | else |
2573 | fullpath = config_default_dir; | |
2574 | } | |
2575 | ||
718e3744 | 2576 | vty_read_file (confp); |
2577 | ||
2578 | fclose (confp); | |
2579 | ||
2580 | host_config_set (fullpath); | |
6eda6425 DS |
2581 | |
2582 | tmp_free_and_out: | |
05865c90 | 2583 | if (tmp) |
2584 | XFREE (MTYPE_TMP, fullpath); | |
718e3744 | 2585 | } |
2586 | ||
2587 | /* Small utility function which output log to the VTY. */ | |
2588 | void | |
274a4a44 | 2589 | vty_log (const char *level, const char *proto_str, |
1ed72e0b | 2590 | const char *format, struct timestamp_control *ctl, va_list va) |
718e3744 | 2591 | { |
8c328f11 | 2592 | unsigned int i; |
718e3744 | 2593 | struct vty *vty; |
a4b30303 PJ |
2594 | |
2595 | if (!vtyvec) | |
2596 | return; | |
718e3744 | 2597 | |
55468c86 | 2598 | for (i = 0; i < vector_active (vtyvec); i++) |
718e3744 | 2599 | if ((vty = vector_slot (vtyvec, i)) != NULL) |
2600 | if (vty->monitor) | |
d246bd96 | 2601 | { |
2602 | va_list ac; | |
2603 | va_copy(ac, va); | |
1ed72e0b | 2604 | vty_log_out (vty, level, proto_str, format, ctl, ac); |
d246bd96 | 2605 | va_end(ac); |
2606 | } | |
718e3744 | 2607 | } |
2608 | ||
274a4a44 | 2609 | /* Async-signal-safe version of vty_log for fixed strings. */ |
2610 | void | |
24873f0c | 2611 | vty_log_fixed (char *buf, size_t len) |
274a4a44 | 2612 | { |
2613 | unsigned int i; | |
9fc7ebf1 | 2614 | struct iovec iov[2]; |
24873f0c | 2615 | char crlf[4] = "\r\n"; |
9fc7ebf1 | 2616 | |
a4b30303 PJ |
2617 | /* vty may not have been initialised */ |
2618 | if (!vtyvec) | |
2619 | return; | |
2620 | ||
1f9a9fff | 2621 | iov[0].iov_base = buf; |
9fc7ebf1 | 2622 | iov[0].iov_len = len; |
24873f0c | 2623 | iov[1].iov_base = crlf; |
9fc7ebf1 | 2624 | iov[1].iov_len = 2; |
274a4a44 | 2625 | |
55468c86 | 2626 | for (i = 0; i < vector_active (vtyvec); i++) |
274a4a44 | 2627 | { |
2628 | struct vty *vty; | |
9fc7ebf1 | 2629 | if (((vty = vector_slot (vtyvec, i)) != NULL) && vty->monitor) |
2630 | /* N.B. We don't care about the return code, since process is | |
2631 | most likely just about to die anyway. */ | |
c5e69a02 | 2632 | if (writev(vty->wfd, iov, 2) == -1) |
77f24551 DS |
2633 | { |
2634 | fprintf(stderr, "Failure to writev: %d\n", errno); | |
2635 | exit(-1); | |
2636 | } | |
274a4a44 | 2637 | } |
2638 | } | |
2639 | ||
718e3744 | 2640 | int |
2641 | vty_config_lock (struct vty *vty) | |
2642 | { | |
cc933ef9 DL |
2643 | if (vty_config_is_lockless) |
2644 | return 1; | |
718e3744 | 2645 | if (vty_config == 0) |
2646 | { | |
2647 | vty->config = 1; | |
2648 | vty_config = 1; | |
2649 | } | |
2650 | return vty->config; | |
2651 | } | |
2652 | ||
2653 | int | |
2654 | vty_config_unlock (struct vty *vty) | |
2655 | { | |
cc933ef9 DL |
2656 | if (vty_config_is_lockless) |
2657 | return 0; | |
718e3744 | 2658 | if (vty_config == 1 && vty->config == 1) |
2659 | { | |
2660 | vty->config = 0; | |
2661 | vty_config = 0; | |
2662 | } | |
2663 | return vty->config; | |
2664 | } | |
6b0655a2 | 2665 | |
cc933ef9 DL |
2666 | void |
2667 | vty_config_lockless (void) | |
2668 | { | |
2669 | vty_config_is_lockless = 1; | |
2670 | } | |
2671 | ||
718e3744 | 2672 | /* Master of the threads. */ |
79159516 | 2673 | static struct thread_master *vty_master; |
718e3744 | 2674 | |
2675 | static void | |
2676 | vty_event (enum event event, int sock, struct vty *vty) | |
2677 | { | |
2678 | struct thread *vty_serv_thread; | |
2679 | ||
2680 | switch (event) | |
2681 | { | |
2682 | case VTY_SERV: | |
79159516 | 2683 | vty_serv_thread = thread_add_read (vty_master, vty_accept, vty, sock); |
718e3744 | 2684 | vector_set_index (Vvty_serv_thread, sock, vty_serv_thread); |
2685 | break; | |
2686 | #ifdef VTYSH | |
2687 | case VTYSH_SERV: | |
79159516 | 2688 | vty_serv_thread = thread_add_read (vty_master, vtysh_accept, vty, sock); |
677bcbbf | 2689 | vector_set_index (Vvty_serv_thread, sock, vty_serv_thread); |
718e3744 | 2690 | break; |
2691 | case VTYSH_READ: | |
79159516 | 2692 | vty->t_read = thread_add_read (vty_master, vtysh_read, vty, sock); |
49ff6d9d | 2693 | break; |
2694 | case VTYSH_WRITE: | |
79159516 | 2695 | vty->t_write = thread_add_write (vty_master, vtysh_write, vty, sock); |
718e3744 | 2696 | break; |
2697 | #endif /* VTYSH */ | |
2698 | case VTY_READ: | |
79159516 | 2699 | vty->t_read = thread_add_read (vty_master, vty_read, vty, sock); |
718e3744 | 2700 | |
2701 | /* Time out treatment. */ | |
2702 | if (vty->v_timeout) | |
2703 | { | |
2704 | if (vty->t_timeout) | |
2705 | thread_cancel (vty->t_timeout); | |
2706 | vty->t_timeout = | |
79159516 | 2707 | thread_add_timer (vty_master, vty_timeout, vty, vty->v_timeout); |
718e3744 | 2708 | } |
2709 | break; | |
2710 | case VTY_WRITE: | |
2711 | if (! vty->t_write) | |
79159516 | 2712 | vty->t_write = thread_add_write (vty_master, vty_flush, vty, sock); |
718e3744 | 2713 | break; |
2714 | case VTY_TIMEOUT_RESET: | |
2715 | if (vty->t_timeout) | |
2716 | { | |
2717 | thread_cancel (vty->t_timeout); | |
2718 | vty->t_timeout = NULL; | |
2719 | } | |
2720 | if (vty->v_timeout) | |
2721 | { | |
2722 | vty->t_timeout = | |
79159516 | 2723 | thread_add_timer (vty_master, vty_timeout, vty, vty->v_timeout); |
718e3744 | 2724 | } |
2725 | break; | |
2726 | } | |
2727 | } | |
6b0655a2 | 2728 | |
718e3744 | 2729 | DEFUN (config_who, |
2730 | config_who_cmd, | |
2731 | "who", | |
2732 | "Display who is on vty\n") | |
2733 | { | |
8c328f11 | 2734 | unsigned int i; |
718e3744 | 2735 | struct vty *v; |
2736 | ||
55468c86 | 2737 | for (i = 0; i < vector_active (vtyvec); i++) |
718e3744 | 2738 | if ((v = vector_slot (vtyvec, i)) != NULL) |
2739 | vty_out (vty, "%svty[%d] connected from %s.%s", | |
2740 | v->config ? "*" : " ", | |
2741 | i, v->address, VTY_NEWLINE); | |
2742 | return CMD_SUCCESS; | |
2743 | } | |
2744 | ||
2745 | /* Move to vty configuration mode. */ | |
2746 | DEFUN (line_vty, | |
2747 | line_vty_cmd, | |
2748 | "line vty", | |
2749 | "Configure a terminal line\n" | |
2750 | "Virtual terminal\n") | |
2751 | { | |
2752 | vty->node = VTY_NODE; | |
2753 | return CMD_SUCCESS; | |
2754 | } | |
2755 | ||
2756 | /* Set time out value. */ | |
9fc7ebf1 | 2757 | static int |
9035efaa | 2758 | exec_timeout (struct vty *vty, const char *min_str, const char *sec_str) |
718e3744 | 2759 | { |
2760 | unsigned long timeout = 0; | |
2761 | ||
2762 | /* min_str and sec_str are already checked by parser. So it must be | |
2763 | all digit string. */ | |
2764 | if (min_str) | |
2765 | { | |
2766 | timeout = strtol (min_str, NULL, 10); | |
2767 | timeout *= 60; | |
2768 | } | |
2769 | if (sec_str) | |
2770 | timeout += strtol (sec_str, NULL, 10); | |
2771 | ||
2772 | vty_timeout_val = timeout; | |
2773 | vty->v_timeout = timeout; | |
2774 | vty_event (VTY_TIMEOUT_RESET, 0, vty); | |
2775 | ||
2776 | ||
2777 | return CMD_SUCCESS; | |
2778 | } | |
2779 | ||
2780 | DEFUN (exec_timeout_min, | |
2781 | exec_timeout_min_cmd, | |
2782 | "exec-timeout <0-35791>", | |
2783 | "Set timeout value\n" | |
2784 | "Timeout value in minutes\n") | |
2785 | { | |
2786 | return exec_timeout (vty, argv[0], NULL); | |
2787 | } | |
2788 | ||
2789 | DEFUN (exec_timeout_sec, | |
2790 | exec_timeout_sec_cmd, | |
2791 | "exec-timeout <0-35791> <0-2147483>", | |
2792 | "Set the EXEC timeout\n" | |
2793 | "Timeout in minutes\n" | |
2794 | "Timeout in seconds\n") | |
2795 | { | |
2796 | return exec_timeout (vty, argv[0], argv[1]); | |
2797 | } | |
2798 | ||
2799 | DEFUN (no_exec_timeout, | |
2800 | no_exec_timeout_cmd, | |
2801 | "no exec-timeout", | |
2802 | NO_STR | |
2803 | "Set the EXEC timeout\n") | |
2804 | { | |
2805 | return exec_timeout (vty, NULL, NULL); | |
2806 | } | |
2807 | ||
2808 | /* Set vty access class. */ | |
2809 | DEFUN (vty_access_class, | |
2810 | vty_access_class_cmd, | |
2811 | "access-class WORD", | |
2812 | "Filter connections based on an IP access list\n" | |
2813 | "IP access list\n") | |
2814 | { | |
2815 | if (vty_accesslist_name) | |
2816 | XFREE(MTYPE_VTY, vty_accesslist_name); | |
2817 | ||
2818 | vty_accesslist_name = XSTRDUP(MTYPE_VTY, argv[0]); | |
2819 | ||
2820 | return CMD_SUCCESS; | |
2821 | } | |
2822 | ||
2823 | /* Clear vty access class. */ | |
2824 | DEFUN (no_vty_access_class, | |
2825 | no_vty_access_class_cmd, | |
2826 | "no access-class [WORD]", | |
2827 | NO_STR | |
2828 | "Filter connections based on an IP access list\n" | |
2829 | "IP access list\n") | |
2830 | { | |
2831 | if (! vty_accesslist_name || (argc && strcmp(vty_accesslist_name, argv[0]))) | |
2832 | { | |
2833 | vty_out (vty, "Access-class is not currently applied to vty%s", | |
2834 | VTY_NEWLINE); | |
2835 | return CMD_WARNING; | |
2836 | } | |
2837 | ||
2838 | XFREE(MTYPE_VTY, vty_accesslist_name); | |
2839 | ||
2840 | vty_accesslist_name = NULL; | |
2841 | ||
2842 | return CMD_SUCCESS; | |
2843 | } | |
2844 | ||
2845 | #ifdef HAVE_IPV6 | |
2846 | /* Set vty access class. */ | |
2847 | DEFUN (vty_ipv6_access_class, | |
2848 | vty_ipv6_access_class_cmd, | |
2849 | "ipv6 access-class WORD", | |
2850 | IPV6_STR | |
2851 | "Filter connections based on an IP access list\n" | |
2852 | "IPv6 access list\n") | |
2853 | { | |
2854 | if (vty_ipv6_accesslist_name) | |
2855 | XFREE(MTYPE_VTY, vty_ipv6_accesslist_name); | |
2856 | ||
2857 | vty_ipv6_accesslist_name = XSTRDUP(MTYPE_VTY, argv[0]); | |
2858 | ||
2859 | return CMD_SUCCESS; | |
2860 | } | |
2861 | ||
2862 | /* Clear vty access class. */ | |
2863 | DEFUN (no_vty_ipv6_access_class, | |
2864 | no_vty_ipv6_access_class_cmd, | |
2865 | "no ipv6 access-class [WORD]", | |
2866 | NO_STR | |
2867 | IPV6_STR | |
2868 | "Filter connections based on an IP access list\n" | |
2869 | "IPv6 access list\n") | |
2870 | { | |
2871 | if (! vty_ipv6_accesslist_name || | |
2872 | (argc && strcmp(vty_ipv6_accesslist_name, argv[0]))) | |
2873 | { | |
2874 | vty_out (vty, "IPv6 access-class is not currently applied to vty%s", | |
2875 | VTY_NEWLINE); | |
2876 | return CMD_WARNING; | |
2877 | } | |
2878 | ||
2879 | XFREE(MTYPE_VTY, vty_ipv6_accesslist_name); | |
2880 | ||
2881 | vty_ipv6_accesslist_name = NULL; | |
2882 | ||
2883 | return CMD_SUCCESS; | |
2884 | } | |
2885 | #endif /* HAVE_IPV6 */ | |
2886 | ||
2887 | /* vty login. */ | |
2888 | DEFUN (vty_login, | |
2889 | vty_login_cmd, | |
2890 | "login", | |
2891 | "Enable password checking\n") | |
2892 | { | |
2893 | no_password_check = 0; | |
2894 | return CMD_SUCCESS; | |
2895 | } | |
2896 | ||
2897 | DEFUN (no_vty_login, | |
2898 | no_vty_login_cmd, | |
2899 | "no login", | |
2900 | NO_STR | |
2901 | "Enable password checking\n") | |
2902 | { | |
2903 | no_password_check = 1; | |
2904 | return CMD_SUCCESS; | |
2905 | } | |
2906 | ||
2907 | DEFUN (service_advanced_vty, | |
2908 | service_advanced_vty_cmd, | |
2909 | "service advanced-vty", | |
2910 | "Set up miscellaneous service\n" | |
2911 | "Enable advanced mode vty interface\n") | |
2912 | { | |
2913 | host.advanced = 1; | |
2914 | return CMD_SUCCESS; | |
2915 | } | |
2916 | ||
2917 | DEFUN (no_service_advanced_vty, | |
2918 | no_service_advanced_vty_cmd, | |
2919 | "no service advanced-vty", | |
2920 | NO_STR | |
2921 | "Set up miscellaneous service\n" | |
2922 | "Enable advanced mode vty interface\n") | |
2923 | { | |
2924 | host.advanced = 0; | |
2925 | return CMD_SUCCESS; | |
2926 | } | |
2927 | ||
2928 | DEFUN (terminal_monitor, | |
2929 | terminal_monitor_cmd, | |
2930 | "terminal monitor", | |
2931 | "Set terminal line parameters\n" | |
2932 | "Copy debug output to the current terminal line\n") | |
2933 | { | |
2934 | vty->monitor = 1; | |
2935 | return CMD_SUCCESS; | |
2936 | } | |
2937 | ||
2938 | DEFUN (terminal_no_monitor, | |
2939 | terminal_no_monitor_cmd, | |
2940 | "terminal no monitor", | |
2941 | "Set terminal line parameters\n" | |
2942 | NO_STR | |
2943 | "Copy debug output to the current terminal line\n") | |
2944 | { | |
2945 | vty->monitor = 0; | |
2946 | return CMD_SUCCESS; | |
2947 | } | |
2948 | ||
789f78ac | 2949 | ALIAS (terminal_no_monitor, |
2950 | no_terminal_monitor_cmd, | |
2951 | "no terminal monitor", | |
2952 | NO_STR | |
2953 | "Set terminal line parameters\n" | |
2954 | "Copy debug output to the current terminal line\n") | |
2955 | ||
718e3744 | 2956 | DEFUN (show_history, |
2957 | show_history_cmd, | |
2958 | "show history", | |
2959 | SHOW_STR | |
2960 | "Display the session command history\n") | |
2961 | { | |
2962 | int index; | |
2963 | ||
2964 | for (index = vty->hindex + 1; index != vty->hindex;) | |
2965 | { | |
2966 | if (index == VTY_MAXHIST) | |
2967 | { | |
2968 | index = 0; | |
2969 | continue; | |
2970 | } | |
2971 | ||
2972 | if (vty->hist[index] != NULL) | |
2973 | vty_out (vty, " %s%s", vty->hist[index], VTY_NEWLINE); | |
2974 | ||
2975 | index++; | |
2976 | } | |
2977 | ||
2978 | return CMD_SUCCESS; | |
2979 | } | |
2980 | ||
da688ecd LB |
2981 | /* vty login. */ |
2982 | DEFUN (log_commands, | |
2983 | log_commands_cmd, | |
2984 | "log commands", | |
2985 | "Logging control\n" | |
2986 | "Log all commands (can't be unset without restart)\n") | |
2987 | { | |
2988 | do_log_commands = 1; | |
2989 | return CMD_SUCCESS; | |
2990 | } | |
2991 | ||
718e3744 | 2992 | /* Display current configuration. */ |
9fc7ebf1 | 2993 | static int |
718e3744 | 2994 | vty_config_write (struct vty *vty) |
2995 | { | |
2996 | vty_out (vty, "line vty%s", VTY_NEWLINE); | |
2997 | ||
2998 | if (vty_accesslist_name) | |
2999 | vty_out (vty, " access-class %s%s", | |
3000 | vty_accesslist_name, VTY_NEWLINE); | |
3001 | ||
3002 | if (vty_ipv6_accesslist_name) | |
3003 | vty_out (vty, " ipv6 access-class %s%s", | |
3004 | vty_ipv6_accesslist_name, VTY_NEWLINE); | |
3005 | ||
3006 | /* exec-timeout */ | |
3007 | if (vty_timeout_val != VTY_TIMEOUT_DEFAULT) | |
3008 | vty_out (vty, " exec-timeout %ld %ld%s", | |
3009 | vty_timeout_val / 60, | |
3010 | vty_timeout_val % 60, VTY_NEWLINE); | |
3011 | ||
3012 | /* login */ | |
3013 | if (no_password_check) | |
3014 | vty_out (vty, " no login%s", VTY_NEWLINE); | |
da688ecd LB |
3015 | |
3016 | if (do_log_commands) | |
3017 | vty_out (vty, "log commands%s", VTY_NEWLINE); | |
3018 | ||
718e3744 | 3019 | vty_out (vty, "!%s", VTY_NEWLINE); |
3020 | ||
3021 | return CMD_SUCCESS; | |
3022 | } | |
3023 | ||
3024 | struct cmd_node vty_node = | |
3025 | { | |
3026 | VTY_NODE, | |
3027 | "%s(config-line)# ", | |
e7168df4 | 3028 | 1, |
718e3744 | 3029 | }; |
3030 | ||
3031 | /* Reset all VTY status. */ | |
3032 | void | |
3033 | vty_reset () | |
3034 | { | |
8c328f11 | 3035 | unsigned int i; |
718e3744 | 3036 | struct vty *vty; |
3037 | struct thread *vty_serv_thread; | |
3038 | ||
55468c86 | 3039 | for (i = 0; i < vector_active (vtyvec); i++) |
718e3744 | 3040 | if ((vty = vector_slot (vtyvec, i)) != NULL) |
3041 | { | |
3042 | buffer_reset (vty->obuf); | |
3043 | vty->status = VTY_CLOSE; | |
3044 | vty_close (vty); | |
3045 | } | |
3046 | ||
55468c86 | 3047 | for (i = 0; i < vector_active (Vvty_serv_thread); i++) |
718e3744 | 3048 | if ((vty_serv_thread = vector_slot (Vvty_serv_thread, i)) != NULL) |
3049 | { | |
3050 | thread_cancel (vty_serv_thread); | |
3051 | vector_slot (Vvty_serv_thread, i) = NULL; | |
3052 | close (i); | |
3053 | } | |
3054 | ||
3055 | vty_timeout_val = VTY_TIMEOUT_DEFAULT; | |
3056 | ||
3057 | if (vty_accesslist_name) | |
3058 | { | |
3059 | XFREE(MTYPE_VTY, vty_accesslist_name); | |
3060 | vty_accesslist_name = NULL; | |
3061 | } | |
3062 | ||
3063 | if (vty_ipv6_accesslist_name) | |
3064 | { | |
3065 | XFREE(MTYPE_VTY, vty_ipv6_accesslist_name); | |
3066 | vty_ipv6_accesslist_name = NULL; | |
3067 | } | |
3068 | } | |
3069 | ||
9fc7ebf1 | 3070 | static void |
3071 | vty_save_cwd (void) | |
718e3744 | 3072 | { |
79ad2798 | 3073 | char cwd[MAXPATHLEN]; |
ccc9235e | 3074 | char *c; |
79ad2798 | 3075 | |
ccc9235e | 3076 | c = getcwd (cwd, MAXPATHLEN); |
718e3744 | 3077 | |
ccc9235e | 3078 | if (!c) |
79ad2798 | 3079 | { |
77f24551 DS |
3080 | /* |
3081 | * At this point if these go wrong, more than likely | |
3082 | * the whole world is coming down around us | |
3083 | * Hence not worrying about it too much. | |
3084 | */ | |
3085 | if (!chdir (SYSCONFDIR)) | |
3086 | { | |
3087 | fprintf(stderr, "Failure to chdir to %s, errno: %d\n", SYSCONFDIR, errno); | |
3088 | exit(-1); | |
3089 | } | |
3090 | if (getcwd (cwd, MAXPATHLEN) == NULL) | |
3091 | { | |
3092 | fprintf(stderr, "Failure to getcwd, errno: %d\n", errno); | |
3093 | exit(-1); | |
3094 | } | |
79ad2798 | 3095 | } |
718e3744 | 3096 | |
3097 | vty_cwd = XMALLOC (MTYPE_TMP, strlen (cwd) + 1); | |
3098 | strcpy (vty_cwd, cwd); | |
3099 | } | |
3100 | ||
3101 | char * | |
3102 | vty_get_cwd () | |
3103 | { | |
3104 | return vty_cwd; | |
3105 | } | |
3106 | ||
3107 | int | |
3108 | vty_shell (struct vty *vty) | |
3109 | { | |
3110 | return vty->type == VTY_SHELL ? 1 : 0; | |
3111 | } | |
3112 | ||
3113 | int | |
3114 | vty_shell_serv (struct vty *vty) | |
3115 | { | |
3116 | return vty->type == VTY_SHELL_SERV ? 1 : 0; | |
3117 | } | |
3118 | ||
3119 | void | |
3120 | vty_init_vtysh () | |
3121 | { | |
3122 | vtyvec = vector_init (VECTOR_MIN_SIZE); | |
3123 | } | |
3124 | ||
3125 | /* Install vty's own commands like `who' command. */ | |
3126 | void | |
b21b19c5 | 3127 | vty_init (struct thread_master *master_thread) |
718e3744 | 3128 | { |
3129 | /* For further configuration read, preserve current directory. */ | |
3130 | vty_save_cwd (); | |
3131 | ||
3132 | vtyvec = vector_init (VECTOR_MIN_SIZE); | |
3133 | ||
79159516 | 3134 | vty_master = master_thread; |
b21b19c5 | 3135 | |
b510a06e DL |
3136 | atexit (vty_stdio_reset); |
3137 | ||
718e3744 | 3138 | /* Initilize server thread vector. */ |
3139 | Vvty_serv_thread = vector_init (VECTOR_MIN_SIZE); | |
3140 | ||
3141 | /* Install bgp top node. */ | |
3142 | install_node (&vty_node, vty_config_write); | |
3143 | ||
3144 | install_element (VIEW_NODE, &config_who_cmd); | |
3145 | install_element (VIEW_NODE, &show_history_cmd); | |
718e3744 | 3146 | install_element (CONFIG_NODE, &line_vty_cmd); |
3147 | install_element (CONFIG_NODE, &service_advanced_vty_cmd); | |
3148 | install_element (CONFIG_NODE, &no_service_advanced_vty_cmd); | |
3149 | install_element (CONFIG_NODE, &show_history_cmd); | |
da688ecd | 3150 | install_element (CONFIG_NODE, &log_commands_cmd); |
718e3744 | 3151 | install_element (ENABLE_NODE, &terminal_monitor_cmd); |
3152 | install_element (ENABLE_NODE, &terminal_no_monitor_cmd); | |
789f78ac | 3153 | install_element (ENABLE_NODE, &no_terminal_monitor_cmd); |
718e3744 | 3154 | |
3155 | install_default (VTY_NODE); | |
3156 | install_element (VTY_NODE, &exec_timeout_min_cmd); | |
3157 | install_element (VTY_NODE, &exec_timeout_sec_cmd); | |
3158 | install_element (VTY_NODE, &no_exec_timeout_cmd); | |
3159 | install_element (VTY_NODE, &vty_access_class_cmd); | |
3160 | install_element (VTY_NODE, &no_vty_access_class_cmd); | |
3161 | install_element (VTY_NODE, &vty_login_cmd); | |
3162 | install_element (VTY_NODE, &no_vty_login_cmd); | |
3163 | #ifdef HAVE_IPV6 | |
3164 | install_element (VTY_NODE, &vty_ipv6_access_class_cmd); | |
3165 | install_element (VTY_NODE, &no_vty_ipv6_access_class_cmd); | |
3166 | #endif /* HAVE_IPV6 */ | |
3167 | } | |
228da428 CC |
3168 | |
3169 | void | |
3170 | vty_terminate (void) | |
3171 | { | |
3172 | if (vty_cwd) | |
3173 | XFREE (MTYPE_TMP, vty_cwd); | |
3174 | ||
3175 | if (vtyvec && Vvty_serv_thread) | |
3176 | { | |
3177 | vty_reset (); | |
3178 | vector_free (vtyvec); | |
3179 | vector_free (Vvty_serv_thread); | |
3180 | } | |
3181 | } | |
eac6e3f0 RW |
3182 | |
3183 | /* Utility functions to get arguments from commands generated | |
3184 | by the xml2cli.pl script. */ | |
3185 | const char * | |
3186 | vty_get_arg_value (struct vty_arg *args[], const char *arg) | |
3187 | { | |
3188 | while (*args) | |
3189 | { | |
3190 | if (strcmp ((*args)->name, arg) == 0) | |
3191 | return (*args)->value; | |
3192 | args++; | |
3193 | } | |
3194 | return NULL; | |
3195 | } | |
3196 | ||
3197 | struct vty_arg * | |
3198 | vty_get_arg (struct vty_arg *args[], const char *arg) | |
3199 | { | |
3200 | while (*args) | |
3201 | { | |
3202 | if (strcmp ((*args)->name, arg) == 0) | |
3203 | return *args; | |
3204 | args++; | |
3205 | } | |
3206 | return NULL; | |
3207 | } |