]>
Commit | Line | Data |
---|---|---|
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 | * | |
896014f4 DL |
17 | * You should have received a copy of the GNU General Public License along |
18 | * with this program; see the file COPYING; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
718e3744 | 20 | */ |
21 | ||
22 | #include <zebra.h> | |
23 | ||
24 | #include "linklist.h" | |
b21b19c5 | 25 | #include "thread.h" |
718e3744 | 26 | #include "buffer.h" |
5e4fa164 | 27 | #include <lib/version.h> |
718e3744 | 28 | #include "command.h" |
29 | #include "sockunion.h" | |
718e3744 | 30 | #include "memory.h" |
718e3744 | 31 | #include "log.h" |
32 | #include "prefix.h" | |
33 | #include "filter.h" | |
b21b19c5 | 34 | #include "vty.h" |
edd7c245 | 35 | #include "privs.h" |
9fc7ebf1 | 36 | #include "network.h" |
b85120bc | 37 | #include "libfrr.h" |
9fc7ebf1 | 38 | |
39 | #include <arpa/telnet.h> | |
b510a06e | 40 | #include <termios.h> |
718e3744 | 41 | |
4a1ab8e4 DL |
42 | DEFINE_MTYPE_STATIC(LIB, VTY, "VTY") |
43 | DEFINE_MTYPE_STATIC(LIB, VTY_OUT_BUF, "VTY output buffer") | |
44 | DEFINE_MTYPE_STATIC(LIB, VTY_HIST, "VTY history") | |
45 | ||
718e3744 | 46 | /* Vty events */ |
d0bfb22c | 47 | enum event |
718e3744 | 48 | { |
49 | VTY_SERV, | |
50 | VTY_READ, | |
51 | VTY_WRITE, | |
52 | VTY_TIMEOUT_RESET, | |
53 | #ifdef VTYSH | |
54 | VTYSH_SERV, | |
49ff6d9d | 55 | VTYSH_READ, |
56 | VTYSH_WRITE | |
718e3744 | 57 | #endif /* VTYSH */ |
58 | }; | |
59 | ||
60 | static void vty_event (enum event, int, struct vty *); | |
61 | ||
62 | /* Extern host structure from command.c */ | |
63 | extern struct host host; | |
6b0655a2 | 64 | |
718e3744 | 65 | /* Vector which store each vty structure. */ |
66 | static vector vtyvec; | |
67 | ||
68 | /* Vty timeout value. */ | |
69 | static unsigned long vty_timeout_val = VTY_TIMEOUT_DEFAULT; | |
70 | ||
71 | /* Vty access-class command */ | |
72 | static char *vty_accesslist_name = NULL; | |
73 | ||
74 | /* Vty access-calss for IPv6. */ | |
75 | static char *vty_ipv6_accesslist_name = NULL; | |
76 | ||
77 | /* VTY server thread. */ | |
677bcbbf | 78 | static vector Vvty_serv_thread; |
718e3744 | 79 | |
80 | /* Current directory. */ | |
81 | char *vty_cwd = NULL; | |
82 | ||
83 | /* Configure lock. */ | |
84 | static int vty_config; | |
cc933ef9 | 85 | static int vty_config_is_lockless = 0; |
718e3744 | 86 | |
87 | /* Login password check. */ | |
88 | static int no_password_check = 0; | |
89 | ||
90 | /* Integrated configuration file path */ | |
91 | char integrate_default[] = SYSCONFDIR INTEGRATE_DEFAULT_CONFIG; | |
92 | ||
da688ecd | 93 | static int do_log_commands = 0; |
6b0655a2 | 94 | |
718e3744 | 95 | /* VTY standard output function. */ |
96 | int | |
97 | vty_out (struct vty *vty, const char *format, ...) | |
98 | { | |
99 | va_list args; | |
100 | int len = 0; | |
101 | int size = 1024; | |
102 | char buf[1024]; | |
103 | char *p = NULL; | |
718e3744 | 104 | |
105 | if (vty_shell (vty)) | |
d246bd96 | 106 | { |
107 | va_start (args, format); | |
108 | vprintf (format, args); | |
109 | va_end (args); | |
110 | } | |
718e3744 | 111 | else |
112 | { | |
113 | /* Try to write to initial buffer. */ | |
d246bd96 | 114 | va_start (args, format); |
1035065f | 115 | len = vsnprintf (buf, sizeof(buf), format, args); |
d246bd96 | 116 | va_end (args); |
718e3744 | 117 | |
118 | /* Initial buffer is not enough. */ | |
119 | if (len < 0 || len >= size) | |
d0bfb22c QY |
120 | { |
121 | while (1) | |
122 | { | |
123 | if (len > -1) | |
124 | size = len + 1; | |
125 | else | |
126 | size = size * 2; | |
127 | ||
128 | p = XREALLOC (MTYPE_VTY_OUT_BUF, p, size); | |
129 | if (! p) | |
130 | return -1; | |
131 | ||
132 | va_start (args, format); | |
133 | len = vsnprintf (p, size, format, args); | |
134 | va_end (args); | |
135 | ||
136 | if (len > -1 && len < size) | |
137 | break; | |
138 | } | |
139 | } | |
718e3744 | 140 | |
141 | /* When initial buffer is enough to store all output. */ | |
142 | if (! p) | |
d0bfb22c | 143 | p = buf; |
718e3744 | 144 | |
145 | /* Pointer p must point out buffer. */ | |
9fc7ebf1 | 146 | buffer_put (vty->obuf, (u_char *) p, len); |
718e3744 | 147 | |
148 | /* If p is not different with buf, it is allocated buffer. */ | |
149 | if (p != buf) | |
d0bfb22c | 150 | XFREE (MTYPE_VTY_OUT_BUF, p); |
718e3744 | 151 | } |
152 | ||
718e3744 | 153 | return len; |
154 | } | |
155 | ||
d246bd96 | 156 | static int |
274a4a44 | 157 | vty_log_out (struct vty *vty, const char *level, const char *proto_str, |
d0bfb22c | 158 | const char *format, struct timestamp_control *ctl, va_list va) |
718e3744 | 159 | { |
9fc7ebf1 | 160 | int ret; |
718e3744 | 161 | int len; |
162 | char buf[1024]; | |
08942da5 | 163 | |
1ed72e0b AS |
164 | if (!ctl->already_rendered) |
165 | { | |
166 | ctl->len = quagga_timestamp(ctl->precision, ctl->buf, sizeof(ctl->buf)); | |
167 | ctl->already_rendered = 1; | |
168 | } | |
169 | if (ctl->len+1 >= sizeof(buf)) | |
170 | return -1; | |
171 | memcpy(buf, ctl->buf, len = ctl->len); | |
172 | buf[len++] = ' '; | |
173 | buf[len] = '\0'; | |
718e3744 | 174 | |
274a4a44 | 175 | if (level) |
08942da5 | 176 | ret = snprintf(buf+len, sizeof(buf)-len, "%s: %s: ", level, proto_str); |
274a4a44 | 177 | else |
08942da5 AS |
178 | ret = snprintf(buf+len, sizeof(buf)-len, "%s: ", proto_str); |
179 | if ((ret < 0) || ((size_t)(len += ret) >= sizeof(buf))) | |
9fc7ebf1 | 180 | return -1; |
718e3744 | 181 | |
9fc7ebf1 | 182 | if (((ret = vsnprintf(buf+len, sizeof(buf)-len, format, va)) < 0) || |
183 | ((size_t)((len += ret)+2) > sizeof(buf))) | |
718e3744 | 184 | return -1; |
718e3744 | 185 | |
9fc7ebf1 | 186 | buf[len++] = '\r'; |
187 | buf[len++] = '\n'; | |
718e3744 | 188 | |
c5e69a02 | 189 | if (write(vty->wfd, buf, len) < 0) |
9fc7ebf1 | 190 | { |
191 | if (ERRNO_IO_RETRY(errno)) | |
d0bfb22c QY |
192 | /* Kernel buffer is full, probably too much debugging output, so just |
193 | drop the data and ignore. */ | |
194 | return -1; | |
9fc7ebf1 | 195 | /* Fatal I/O error. */ |
74542d73 | 196 | vty->monitor = 0; /* disable monitoring to avoid infinite recursion */ |
9fc7ebf1 | 197 | zlog_warn("%s: write failed to vty client fd %d, closing: %s", |
d0bfb22c | 198 | __func__, vty->fd, safe_strerror(errno)); |
9fc7ebf1 | 199 | buffer_reset(vty->obuf); |
9d0a3260 AS |
200 | /* cannot call vty_close, because a parent routine may still try |
201 | to access the vty struct */ | |
202 | vty->status = VTY_CLOSE; | |
203 | shutdown(vty->fd, SHUT_RDWR); | |
9fc7ebf1 | 204 | return -1; |
205 | } | |
206 | return 0; | |
718e3744 | 207 | } |
208 | ||
209 | /* Output current time to the vty. */ | |
210 | void | |
211 | vty_time_print (struct vty *vty, int cr) | |
212 | { | |
ae616d60 | 213 | char buf[QUAGGA_TIMESTAMP_LEN]; |
d0bfb22c | 214 | |
1ed72e0b | 215 | if (quagga_timestamp(0, buf, sizeof(buf)) == 0) |
718e3744 | 216 | { |
4525281a | 217 | zlog_info("quagga_timestamp error"); |
718e3744 | 218 | return; |
219 | } | |
220 | if (cr) | |
221 | vty_out (vty, "%s\n", buf); | |
222 | else | |
223 | vty_out (vty, "%s ", buf); | |
224 | ||
225 | return; | |
226 | } | |
227 | ||
228 | /* Say hello to vty interface. */ | |
229 | void | |
230 | vty_hello (struct vty *vty) | |
231 | { | |
3b0c5d9a | 232 | if (host.motdfile) |
233 | { | |
234 | FILE *f; | |
235 | char buf[4096]; | |
22085181 | 236 | |
3b0c5d9a | 237 | f = fopen (host.motdfile, "r"); |
238 | if (f) | |
d0bfb22c QY |
239 | { |
240 | while (fgets (buf, sizeof (buf), f)) | |
241 | { | |
242 | char *s; | |
243 | /* work backwards to ignore trailling isspace() */ | |
244 | for (s = buf + strlen (buf); (s > buf) && isspace ((int)*(s - 1)); | |
245 | s--); | |
246 | *s = '\0'; | |
247 | vty_out (vty, "%s%s", buf, VTY_NEWLINE); | |
248 | } | |
249 | fclose (f); | |
250 | } | |
3b0c5d9a | 251 | else |
d0bfb22c | 252 | vty_out (vty, "MOTD file not found%s", VTY_NEWLINE); |
3b0c5d9a | 253 | } |
254 | else if (host.motd) | |
b830c89a | 255 | vty_out (vty, "%s", host.motd); |
718e3744 | 256 | } |
257 | ||
258 | /* Put out prompt and wait input from user. */ | |
259 | static void | |
260 | vty_prompt (struct vty *vty) | |
261 | { | |
262 | struct utsname names; | |
263 | const char*hostname; | |
264 | ||
265 | if (vty->type == VTY_TERM) | |
266 | { | |
267 | hostname = host.name; | |
268 | if (!hostname) | |
d0bfb22c QY |
269 | { |
270 | uname (&names); | |
271 | hostname = names.nodename; | |
272 | } | |
718e3744 | 273 | vty_out (vty, cmd_prompt (vty->node), hostname); |
274 | } | |
275 | } | |
276 | ||
277 | /* Send WILL TELOPT_ECHO to remote server. */ | |
9fc7ebf1 | 278 | static void |
718e3744 | 279 | vty_will_echo (struct vty *vty) |
280 | { | |
02ff83c5 | 281 | unsigned char cmd[] = { IAC, WILL, TELOPT_ECHO, '\0' }; |
718e3744 | 282 | vty_out (vty, "%s", cmd); |
283 | } | |
284 | ||
285 | /* Make suppress Go-Ahead telnet option. */ | |
286 | static void | |
287 | vty_will_suppress_go_ahead (struct vty *vty) | |
288 | { | |
02ff83c5 | 289 | unsigned char cmd[] = { IAC, WILL, TELOPT_SGA, '\0' }; |
718e3744 | 290 | vty_out (vty, "%s", cmd); |
291 | } | |
292 | ||
293 | /* Make don't use linemode over telnet. */ | |
294 | static void | |
295 | vty_dont_linemode (struct vty *vty) | |
296 | { | |
02ff83c5 | 297 | unsigned char cmd[] = { IAC, DONT, TELOPT_LINEMODE, '\0' }; |
718e3744 | 298 | vty_out (vty, "%s", cmd); |
299 | } | |
300 | ||
301 | /* Use window size. */ | |
302 | static void | |
303 | vty_do_window_size (struct vty *vty) | |
304 | { | |
02ff83c5 | 305 | unsigned char cmd[] = { IAC, DO, TELOPT_NAWS, '\0' }; |
718e3744 | 306 | vty_out (vty, "%s", cmd); |
307 | } | |
308 | ||
309 | #if 0 /* Currently not used. */ | |
310 | /* Make don't use lflow vty interface. */ | |
311 | static void | |
312 | vty_dont_lflow_ahead (struct vty *vty) | |
313 | { | |
02ff83c5 | 314 | unsigned char cmd[] = { IAC, DONT, TELOPT_LFLOW, '\0' }; |
718e3744 | 315 | vty_out (vty, "%s", cmd); |
316 | } | |
317 | #endif /* 0 */ | |
318 | ||
319 | /* Allocate new vty struct. */ | |
320 | struct vty * | |
321 | vty_new () | |
322 | { | |
323 | struct vty *new = XCALLOC (MTYPE_VTY, sizeof (struct vty)); | |
324 | ||
d0bfb22c | 325 | new->obuf = buffer_new(0); /* Use default buffer size. */ |
718e3744 | 326 | new->buf = XCALLOC (MTYPE_VTY, VTY_BUFSIZ); |
5689fe5f | 327 | new->error_buf = XCALLOC (MTYPE_VTY, VTY_BUFSIZ); |
718e3744 | 328 | new->max = VTY_BUFSIZ; |
718e3744 | 329 | |
330 | return new; | |
331 | } | |
332 | ||
333 | /* Authentication of vty */ | |
334 | static void | |
335 | vty_auth (struct vty *vty, char *buf) | |
336 | { | |
337 | char *passwd = NULL; | |
338 | enum node_type next_node = 0; | |
339 | int fail; | |
340 | char *crypt (const char *, const char *); | |
341 | ||
342 | switch (vty->node) | |
343 | { | |
344 | case AUTH_NODE: | |
345 | if (host.encrypt) | |
d0bfb22c | 346 | passwd = host.password_encrypt; |
718e3744 | 347 | else |
d0bfb22c | 348 | passwd = host.password; |
718e3744 | 349 | if (host.advanced) |
d0bfb22c | 350 | next_node = host.enable ? VIEW_NODE : ENABLE_NODE; |
718e3744 | 351 | else |
d0bfb22c | 352 | next_node = VIEW_NODE; |
718e3744 | 353 | break; |
354 | case AUTH_ENABLE_NODE: | |
355 | if (host.encrypt) | |
d0bfb22c | 356 | passwd = host.enable_encrypt; |
718e3744 | 357 | else |
d0bfb22c | 358 | passwd = host.enable; |
718e3744 | 359 | next_node = ENABLE_NODE; |
360 | break; | |
361 | } | |
362 | ||
363 | if (passwd) | |
364 | { | |
365 | if (host.encrypt) | |
d0bfb22c | 366 | fail = strcmp (crypt(buf, passwd), passwd); |
718e3744 | 367 | else |
d0bfb22c | 368 | fail = strcmp (buf, passwd); |
718e3744 | 369 | } |
370 | else | |
371 | fail = 1; | |
372 | ||
373 | if (! fail) | |
374 | { | |
375 | vty->fail = 0; | |
d0bfb22c | 376 | vty->node = next_node; /* Success ! */ |
718e3744 | 377 | } |
378 | else | |
379 | { | |
380 | vty->fail++; | |
381 | if (vty->fail >= 3) | |
d0bfb22c QY |
382 | { |
383 | if (vty->node == AUTH_NODE) | |
384 | { | |
385 | vty_out (vty, "%% Bad passwords, too many failures!%s", VTY_NEWLINE); | |
386 | vty->status = VTY_CLOSE; | |
387 | } | |
388 | else | |
389 | { | |
390 | /* AUTH_ENABLE_NODE */ | |
391 | vty->fail = 0; | |
392 | vty_out (vty, "%% Bad enable passwords, too many failures!%s", VTY_NEWLINE); | |
3c8ab49f | 393 | vty->status = VTY_CLOSE; |
d0bfb22c QY |
394 | } |
395 | } | |
718e3744 | 396 | } |
397 | } | |
398 | ||
399 | /* Command execution over the vty interface. */ | |
9fc7ebf1 | 400 | static int |
718e3744 | 401 | vty_command (struct vty *vty, char *buf) |
402 | { | |
403 | int ret; | |
404 | vector vline; | |
fbf5d033 | 405 | const char *protocolname; |
da688ecd | 406 | char *cp = NULL; |
718e3744 | 407 | |
1035065f LB |
408 | /* |
409 | * Log non empty command lines | |
410 | */ | |
da688ecd LB |
411 | if (do_log_commands) |
412 | cp = buf; | |
1035065f LB |
413 | if (cp != NULL) |
414 | { | |
415 | /* Skip white spaces. */ | |
416 | while (isspace ((int) *cp) && *cp != '\0') | |
417 | cp++; | |
418 | } | |
419 | if (cp != NULL && *cp != '\0') | |
420 | { | |
421 | unsigned i; | |
d0bfb22c | 422 | char vty_str[VTY_BUFSIZ]; |
1035065f LB |
423 | char prompt_str[VTY_BUFSIZ]; |
424 | ||
425 | /* format the base vty info */ | |
426 | snprintf(vty_str, sizeof(vty_str), "vty[??]@%s", vty->address); | |
427 | if (vty) | |
428 | for (i = 0; i < vector_active (vtyvec); i++) | |
429 | if (vty == vector_slot (vtyvec, i)) | |
430 | { | |
431 | snprintf(vty_str, sizeof(vty_str), "vty[%d]@%s", | |
432 | i, vty->address); | |
433 | break; | |
434 | } | |
435 | ||
436 | /* format the prompt */ | |
437 | snprintf(prompt_str, sizeof(prompt_str), cmd_prompt (vty->node), vty_str); | |
438 | ||
439 | /* now log the command */ | |
4525281a | 440 | zlog_err("%s%s", prompt_str, buf); |
1035065f | 441 | } |
718e3744 | 442 | /* Split readline string up into the vector */ |
443 | vline = cmd_make_strvec (buf); | |
444 | ||
445 | if (vline == NULL) | |
446 | return CMD_SUCCESS; | |
447 | ||
924b9229 | 448 | #ifdef CONSUMED_TIME_CHECK |
449 | { | |
450 | RUSAGE_T before; | |
451 | RUSAGE_T after; | |
8b70d0b0 | 452 | unsigned long realtime, cputime; |
924b9229 | 453 | |
454 | GETRUSAGE(&before); | |
455 | #endif /* CONSUMED_TIME_CHECK */ | |
456 | ||
87d683b0 | 457 | ret = cmd_execute_command (vline, vty, NULL, 0); |
718e3744 | 458 | |
fbf5d033 | 459 | /* Get the name of the protocol if any */ |
b85120bc | 460 | protocolname = frr_protoname; |
d0bfb22c | 461 | |
924b9229 | 462 | #ifdef CONSUMED_TIME_CHECK |
463 | GETRUSAGE(&after); | |
8b70d0b0 | 464 | if ((realtime = thread_consumed_time(&after, &before, &cputime)) > |
d0bfb22c | 465 | CONSUMED_TIME_CHECK) |
924b9229 | 466 | /* Warn about CPU hog that must be fixed. */ |
8b70d0b0 | 467 | zlog_warn("SLOW COMMAND: command took %lums (cpu time %lums): %s", |
d0bfb22c | 468 | realtime/1000, cputime/1000, buf); |
924b9229 | 469 | } |
470 | #endif /* CONSUMED_TIME_CHECK */ | |
471 | ||
718e3744 | 472 | if (ret != CMD_SUCCESS) |
473 | switch (ret) | |
474 | { | |
475 | case CMD_WARNING: | |
d0bfb22c QY |
476 | if (vty->type == VTY_FILE) |
477 | vty_out (vty, "Warning...%s", VTY_NEWLINE); | |
478 | break; | |
718e3744 | 479 | case CMD_ERR_AMBIGUOUS: |
d0bfb22c QY |
480 | vty_out (vty, "%% Ambiguous command.%s", VTY_NEWLINE); |
481 | break; | |
718e3744 | 482 | case CMD_ERR_NO_MATCH: |
d0bfb22c QY |
483 | vty_out (vty, "%% [%s] Unknown command: %s%s", protocolname, buf, VTY_NEWLINE); |
484 | break; | |
718e3744 | 485 | case CMD_ERR_INCOMPLETE: |
d0bfb22c QY |
486 | vty_out (vty, "%% Command incomplete.%s", VTY_NEWLINE); |
487 | break; | |
718e3744 | 488 | } |
489 | cmd_free_strvec (vline); | |
490 | ||
491 | return ret; | |
492 | } | |
6b0655a2 | 493 | |
9fc7ebf1 | 494 | static const char telnet_backward_char = 0x08; |
495 | static const char telnet_space_char = ' '; | |
718e3744 | 496 | |
497 | /* Basic function to write buffer to vty. */ | |
498 | static void | |
9fc7ebf1 | 499 | vty_write (struct vty *vty, const char *buf, size_t nbytes) |
718e3744 | 500 | { |
501 | if ((vty->node == AUTH_NODE) || (vty->node == AUTH_ENABLE_NODE)) | |
502 | return; | |
503 | ||
504 | /* Should we do buffering here ? And make vty_flush (vty) ? */ | |
9fc7ebf1 | 505 | buffer_put (vty->obuf, buf, nbytes); |
718e3744 | 506 | } |
507 | ||
718e3744 | 508 | /* Basic function to insert character into vty. */ |
509 | static void | |
510 | vty_self_insert (struct vty *vty, char c) | |
511 | { | |
512 | int i; | |
513 | int length; | |
514 | ||
d1e4a518 | 515 | if (vty->length + 1 >= VTY_BUFSIZ) |
2af38873 QY |
516 | return; |
517 | ||
718e3744 | 518 | length = vty->length - vty->cp; |
519 | memmove (&vty->buf[vty->cp + 1], &vty->buf[vty->cp], length); | |
520 | vty->buf[vty->cp] = c; | |
521 | ||
522 | vty_write (vty, &vty->buf[vty->cp], length + 1); | |
523 | for (i = 0; i < length; i++) | |
524 | vty_write (vty, &telnet_backward_char, 1); | |
525 | ||
526 | vty->cp++; | |
527 | vty->length++; | |
d1e4a518 QY |
528 | |
529 | vty->buf[vty->length] = '\0'; | |
718e3744 | 530 | } |
531 | ||
532 | /* Self insert character 'c' in overwrite mode. */ | |
533 | static void | |
534 | vty_self_insert_overwrite (struct vty *vty, char c) | |
535 | { | |
2af38873 QY |
536 | if (vty->cp == vty->length) |
537 | { | |
538 | vty_self_insert (vty, c); | |
539 | return; | |
540 | } | |
718e3744 | 541 | |
2af38873 | 542 | vty->buf[vty->cp++] = c; |
718e3744 | 543 | vty_write (vty, &c, 1); |
544 | } | |
545 | ||
2af38873 QY |
546 | /** |
547 | * Insert a string into vty->buf at the current cursor position. | |
548 | * | |
549 | * If the resultant string would be larger than VTY_BUFSIZ it is | |
550 | * truncated to fit. | |
551 | */ | |
718e3744 | 552 | static void |
553 | vty_insert_word_overwrite (struct vty *vty, char *str) | |
554 | { | |
d1e4a518 QY |
555 | if (vty->cp == VTY_BUFSIZ) |
556 | return; | |
557 | ||
558 | size_t nwrite = MIN ((int) strlen (str), VTY_BUFSIZ - vty->cp - 1); | |
559 | memcpy (&vty->buf[vty->cp], str, nwrite); | |
2af38873 | 560 | vty->cp += nwrite; |
d1e4a518 QY |
561 | vty->length = MAX (vty->cp, vty->length); |
562 | vty->buf[vty->length] = '\0'; | |
563 | vty_write (vty, str, nwrite); | |
718e3744 | 564 | } |
565 | ||
566 | /* Forward character. */ | |
567 | static void | |
568 | vty_forward_char (struct vty *vty) | |
569 | { | |
570 | if (vty->cp < vty->length) | |
571 | { | |
572 | vty_write (vty, &vty->buf[vty->cp], 1); | |
573 | vty->cp++; | |
574 | } | |
575 | } | |
576 | ||
577 | /* Backward character. */ | |
578 | static void | |
579 | vty_backward_char (struct vty *vty) | |
580 | { | |
581 | if (vty->cp > 0) | |
582 | { | |
583 | vty->cp--; | |
584 | vty_write (vty, &telnet_backward_char, 1); | |
585 | } | |
586 | } | |
587 | ||
588 | /* Move to the beginning of the line. */ | |
589 | static void | |
590 | vty_beginning_of_line (struct vty *vty) | |
591 | { | |
592 | while (vty->cp) | |
593 | vty_backward_char (vty); | |
594 | } | |
595 | ||
596 | /* Move to the end of the line. */ | |
597 | static void | |
598 | vty_end_of_line (struct vty *vty) | |
599 | { | |
600 | while (vty->cp < vty->length) | |
601 | vty_forward_char (vty); | |
602 | } | |
603 | ||
604 | static void vty_kill_line_from_beginning (struct vty *); | |
605 | static void vty_redraw_line (struct vty *); | |
606 | ||
607 | /* Print command line history. This function is called from | |
608 | vty_next_line and vty_previous_line. */ | |
609 | static void | |
610 | vty_history_print (struct vty *vty) | |
611 | { | |
612 | int length; | |
613 | ||
614 | vty_kill_line_from_beginning (vty); | |
615 | ||
616 | /* Get previous line from history buffer */ | |
617 | length = strlen (vty->hist[vty->hp]); | |
618 | memcpy (vty->buf, vty->hist[vty->hp], length); | |
619 | vty->cp = vty->length = length; | |
d1e4a518 | 620 | vty->buf[vty->length] = '\0'; |
718e3744 | 621 | |
622 | /* Redraw current line */ | |
623 | vty_redraw_line (vty); | |
624 | } | |
625 | ||
626 | /* Show next command line history. */ | |
9fc7ebf1 | 627 | static void |
718e3744 | 628 | vty_next_line (struct vty *vty) |
629 | { | |
630 | int try_index; | |
631 | ||
632 | if (vty->hp == vty->hindex) | |
633 | return; | |
634 | ||
635 | /* Try is there history exist or not. */ | |
636 | try_index = vty->hp; | |
637 | if (try_index == (VTY_MAXHIST - 1)) | |
638 | try_index = 0; | |
639 | else | |
640 | try_index++; | |
641 | ||
642 | /* If there is not history return. */ | |
643 | if (vty->hist[try_index] == NULL) | |
644 | return; | |
645 | else | |
646 | vty->hp = try_index; | |
647 | ||
648 | vty_history_print (vty); | |
649 | } | |
650 | ||
651 | /* Show previous command line history. */ | |
9fc7ebf1 | 652 | static void |
718e3744 | 653 | vty_previous_line (struct vty *vty) |
654 | { | |
655 | int try_index; | |
656 | ||
657 | try_index = vty->hp; | |
658 | if (try_index == 0) | |
659 | try_index = VTY_MAXHIST - 1; | |
660 | else | |
661 | try_index--; | |
662 | ||
663 | if (vty->hist[try_index] == NULL) | |
664 | return; | |
665 | else | |
666 | vty->hp = try_index; | |
667 | ||
668 | vty_history_print (vty); | |
669 | } | |
670 | ||
671 | /* This function redraw all of the command line character. */ | |
672 | static void | |
673 | vty_redraw_line (struct vty *vty) | |
674 | { | |
675 | vty_write (vty, vty->buf, vty->length); | |
676 | vty->cp = vty->length; | |
677 | } | |
678 | ||
679 | /* Forward word. */ | |
680 | static void | |
681 | vty_forward_word (struct vty *vty) | |
682 | { | |
683 | while (vty->cp != vty->length && vty->buf[vty->cp] != ' ') | |
684 | vty_forward_char (vty); | |
d0bfb22c | 685 | |
718e3744 | 686 | while (vty->cp != vty->length && vty->buf[vty->cp] == ' ') |
687 | vty_forward_char (vty); | |
688 | } | |
689 | ||
690 | /* Backward word without skipping training space. */ | |
691 | static void | |
692 | vty_backward_pure_word (struct vty *vty) | |
693 | { | |
694 | while (vty->cp > 0 && vty->buf[vty->cp - 1] != ' ') | |
695 | vty_backward_char (vty); | |
696 | } | |
697 | ||
698 | /* Backward word. */ | |
699 | static void | |
700 | vty_backward_word (struct vty *vty) | |
701 | { | |
702 | while (vty->cp > 0 && vty->buf[vty->cp - 1] == ' ') | |
703 | vty_backward_char (vty); | |
704 | ||
705 | while (vty->cp > 0 && vty->buf[vty->cp - 1] != ' ') | |
706 | vty_backward_char (vty); | |
707 | } | |
708 | ||
709 | /* When '^D' is typed at the beginning of the line we move to the down | |
710 | level. */ | |
711 | static void | |
712 | vty_down_level (struct vty *vty) | |
713 | { | |
714 | vty_out (vty, "%s", VTY_NEWLINE); | |
0b84f294 | 715 | cmd_exit (vty); |
718e3744 | 716 | vty_prompt (vty); |
717 | vty->cp = 0; | |
718 | } | |
719 | ||
720 | /* When '^Z' is received from vty, move down to the enable mode. */ | |
9fc7ebf1 | 721 | static void |
718e3744 | 722 | vty_end_config (struct vty *vty) |
723 | { | |
724 | vty_out (vty, "%s", VTY_NEWLINE); | |
725 | ||
726 | switch (vty->node) | |
727 | { | |
728 | case VIEW_NODE: | |
729 | case ENABLE_NODE: | |
730 | /* Nothing to do. */ | |
731 | break; | |
732 | case CONFIG_NODE: | |
733 | case INTERFACE_NODE: | |
734 | case ZEBRA_NODE: | |
735 | case RIP_NODE: | |
736 | case RIPNG_NODE: | |
7f57883e | 737 | case EIGRP_NODE: |
718e3744 | 738 | case BGP_NODE: |
739 | case BGP_VPNV4_NODE: | |
8ecd3266 | 740 | case BGP_VPNV6_NODE: |
5ff06872 | 741 | case BGP_VRF_POLICY_NODE: |
65efcfce LB |
742 | case BGP_VNC_DEFAULTS_NODE: |
743 | case BGP_VNC_NVE_GROUP_NODE: | |
744 | case BGP_VNC_L2_GROUP_NODE: | |
718e3744 | 745 | case BGP_IPV4_NODE: |
746 | case BGP_IPV4M_NODE: | |
f51bae9c | 747 | case BGP_IPV4L_NODE: |
718e3744 | 748 | case BGP_IPV6_NODE: |
1e836590 | 749 | case BGP_IPV6M_NODE: |
9e6df0b7 | 750 | case BGP_EVPN_NODE: |
f51bae9c | 751 | case BGP_IPV6L_NODE: |
718e3744 | 752 | case RMAP_NODE: |
753 | case OSPF_NODE: | |
754 | case OSPF6_NODE: | |
eac6e3f0 RW |
755 | case LDP_NODE: |
756 | case LDP_IPV4_NODE: | |
757 | case LDP_IPV6_NODE: | |
758 | case LDP_IPV4_IFACE_NODE: | |
759 | case LDP_IPV6_IFACE_NODE: | |
760 | case LDP_L2VPN_NODE: | |
761 | case LDP_PSEUDOWIRE_NODE: | |
9e867fe6 | 762 | case ISIS_NODE: |
718e3744 | 763 | case KEYCHAIN_NODE: |
764 | case KEYCHAIN_KEY_NODE: | |
765 | case MASC_NODE: | |
12e41d03 | 766 | case PIM_NODE: |
718e3744 | 767 | case VTY_NODE: |
768 | vty_config_unlock (vty); | |
769 | vty->node = ENABLE_NODE; | |
770 | break; | |
771 | default: | |
772 | /* Unknown node, we have to ignore it. */ | |
773 | break; | |
774 | } | |
775 | ||
776 | vty_prompt (vty); | |
777 | vty->cp = 0; | |
778 | } | |
779 | ||
780 | /* Delete a charcter at the current point. */ | |
781 | static void | |
782 | vty_delete_char (struct vty *vty) | |
783 | { | |
784 | int i; | |
785 | int size; | |
786 | ||
718e3744 | 787 | if (vty->length == 0) |
788 | { | |
789 | vty_down_level (vty); | |
790 | return; | |
791 | } | |
792 | ||
793 | if (vty->cp == vty->length) | |
d0bfb22c | 794 | return; /* completion need here? */ |
718e3744 | 795 | |
796 | size = vty->length - vty->cp; | |
797 | ||
798 | vty->length--; | |
799 | memmove (&vty->buf[vty->cp], &vty->buf[vty->cp + 1], size - 1); | |
800 | vty->buf[vty->length] = '\0'; | |
d0bfb22c | 801 | |
7f794f2b R |
802 | if (vty->node == AUTH_NODE || vty->node == AUTH_ENABLE_NODE) |
803 | return; | |
718e3744 | 804 | |
805 | vty_write (vty, &vty->buf[vty->cp], size - 1); | |
806 | vty_write (vty, &telnet_space_char, 1); | |
807 | ||
808 | for (i = 0; i < size; i++) | |
809 | vty_write (vty, &telnet_backward_char, 1); | |
810 | } | |
811 | ||
812 | /* Delete a character before the point. */ | |
813 | static void | |
814 | vty_delete_backward_char (struct vty *vty) | |
815 | { | |
816 | if (vty->cp == 0) | |
817 | return; | |
818 | ||
819 | vty_backward_char (vty); | |
820 | vty_delete_char (vty); | |
821 | } | |
822 | ||
823 | /* Kill rest of line from current point. */ | |
824 | static void | |
825 | vty_kill_line (struct vty *vty) | |
826 | { | |
827 | int i; | |
828 | int size; | |
829 | ||
830 | size = vty->length - vty->cp; | |
d0bfb22c | 831 | |
718e3744 | 832 | if (size == 0) |
833 | return; | |
834 | ||
835 | for (i = 0; i < size; i++) | |
836 | vty_write (vty, &telnet_space_char, 1); | |
837 | for (i = 0; i < size; i++) | |
838 | vty_write (vty, &telnet_backward_char, 1); | |
839 | ||
840 | memset (&vty->buf[vty->cp], 0, size); | |
841 | vty->length = vty->cp; | |
842 | } | |
843 | ||
844 | /* Kill line from the beginning. */ | |
845 | static void | |
846 | vty_kill_line_from_beginning (struct vty *vty) | |
847 | { | |
848 | vty_beginning_of_line (vty); | |
849 | vty_kill_line (vty); | |
850 | } | |
851 | ||
852 | /* Delete a word before the point. */ | |
853 | static void | |
854 | vty_forward_kill_word (struct vty *vty) | |
855 | { | |
856 | while (vty->cp != vty->length && vty->buf[vty->cp] == ' ') | |
857 | vty_delete_char (vty); | |
858 | while (vty->cp != vty->length && vty->buf[vty->cp] != ' ') | |
859 | vty_delete_char (vty); | |
860 | } | |
861 | ||
862 | /* Delete a word before the point. */ | |
863 | static void | |
864 | vty_backward_kill_word (struct vty *vty) | |
865 | { | |
866 | while (vty->cp > 0 && vty->buf[vty->cp - 1] == ' ') | |
867 | vty_delete_backward_char (vty); | |
868 | while (vty->cp > 0 && vty->buf[vty->cp - 1] != ' ') | |
869 | vty_delete_backward_char (vty); | |
870 | } | |
871 | ||
872 | /* Transpose chars before or at the point. */ | |
873 | static void | |
874 | vty_transpose_chars (struct vty *vty) | |
875 | { | |
876 | char c1, c2; | |
877 | ||
878 | /* If length is short or point is near by the beginning of line then | |
879 | return. */ | |
880 | if (vty->length < 2 || vty->cp < 1) | |
881 | return; | |
882 | ||
883 | /* In case of point is located at the end of the line. */ | |
884 | if (vty->cp == vty->length) | |
885 | { | |
886 | c1 = vty->buf[vty->cp - 1]; | |
887 | c2 = vty->buf[vty->cp - 2]; | |
888 | ||
889 | vty_backward_char (vty); | |
890 | vty_backward_char (vty); | |
891 | vty_self_insert_overwrite (vty, c1); | |
892 | vty_self_insert_overwrite (vty, c2); | |
893 | } | |
894 | else | |
895 | { | |
896 | c1 = vty->buf[vty->cp]; | |
897 | c2 = vty->buf[vty->cp - 1]; | |
898 | ||
899 | vty_backward_char (vty); | |
900 | vty_self_insert_overwrite (vty, c1); | |
901 | vty_self_insert_overwrite (vty, c2); | |
902 | } | |
903 | } | |
904 | ||
905 | /* Do completion at vty interface. */ | |
906 | static void | |
907 | vty_complete_command (struct vty *vty) | |
908 | { | |
909 | int i; | |
910 | int ret; | |
911 | char **matched = NULL; | |
912 | vector vline; | |
913 | ||
914 | if (vty->node == AUTH_NODE || vty->node == AUTH_ENABLE_NODE) | |
915 | return; | |
916 | ||
917 | vline = cmd_make_strvec (vty->buf); | |
918 | if (vline == NULL) | |
919 | return; | |
920 | ||
921 | /* In case of 'help \t'. */ | |
922 | if (isspace ((int) vty->buf[vty->length - 1])) | |
7bf5d992 | 923 | vector_set (vline, NULL); |
718e3744 | 924 | |
ebacb4ed | 925 | matched = cmd_complete_command (vline, vty, &ret); |
d0bfb22c | 926 | |
718e3744 | 927 | cmd_free_strvec (vline); |
928 | ||
929 | vty_out (vty, "%s", VTY_NEWLINE); | |
930 | switch (ret) | |
931 | { | |
932 | case CMD_ERR_AMBIGUOUS: | |
933 | vty_out (vty, "%% Ambiguous command.%s", VTY_NEWLINE); | |
934 | vty_prompt (vty); | |
935 | vty_redraw_line (vty); | |
936 | break; | |
937 | case CMD_ERR_NO_MATCH: | |
938 | /* vty_out (vty, "%% There is no matched command.%s", VTY_NEWLINE); */ | |
939 | vty_prompt (vty); | |
940 | vty_redraw_line (vty); | |
941 | break; | |
942 | case CMD_COMPLETE_FULL_MATCH: | |
745e2754 DL |
943 | if (!matched[0]) |
944 | { | |
945 | /* 2016-11-28 equinox -- need to debug, SEGV here */ | |
946 | vty_out (vty, "%% CLI BUG: FULL_MATCH with NULL str%s", VTY_NEWLINE); | |
947 | vty_prompt (vty); | |
948 | vty_redraw_line (vty); | |
949 | break; | |
950 | } | |
718e3744 | 951 | vty_prompt (vty); |
952 | vty_redraw_line (vty); | |
953 | vty_backward_pure_word (vty); | |
954 | vty_insert_word_overwrite (vty, matched[0]); | |
955 | vty_self_insert (vty, ' '); | |
70d44c5c | 956 | XFREE (MTYPE_COMPLETION, matched[0]); |
718e3744 | 957 | break; |
958 | case CMD_COMPLETE_MATCH: | |
959 | vty_prompt (vty); | |
960 | vty_redraw_line (vty); | |
961 | vty_backward_pure_word (vty); | |
962 | vty_insert_word_overwrite (vty, matched[0]); | |
70d44c5c | 963 | XFREE (MTYPE_COMPLETION, matched[0]); |
718e3744 | 964 | break; |
965 | case CMD_COMPLETE_LIST_MATCH: | |
966 | for (i = 0; matched[i] != NULL; i++) | |
d0bfb22c QY |
967 | { |
968 | if (i != 0 && ((i % 6) == 0)) | |
969 | vty_out (vty, "%s", VTY_NEWLINE); | |
970 | vty_out (vty, "%-10s ", matched[i]); | |
70d44c5c | 971 | XFREE (MTYPE_COMPLETION, matched[i]); |
d0bfb22c | 972 | } |
718e3744 | 973 | vty_out (vty, "%s", VTY_NEWLINE); |
974 | ||
975 | vty_prompt (vty); | |
976 | vty_redraw_line (vty); | |
977 | break; | |
978 | case CMD_ERR_NOTHING_TODO: | |
979 | vty_prompt (vty); | |
980 | vty_redraw_line (vty); | |
981 | break; | |
982 | default: | |
983 | break; | |
984 | } | |
985 | if (matched) | |
66d29a54 | 986 | XFREE (MTYPE_TMP, matched); |
718e3744 | 987 | } |
988 | ||
9fc7ebf1 | 989 | static void |
718e3744 | 990 | vty_describe_fold (struct vty *vty, int cmd_width, |
d0bfb22c | 991 | unsigned int desc_width, struct cmd_token *token) |
718e3744 | 992 | { |
8c328f11 | 993 | char *buf; |
994 | const char *cmd, *p; | |
718e3744 | 995 | int pos; |
996 | ||
aa1c90a4 | 997 | cmd = token->text; |
718e3744 | 998 | |
999 | if (desc_width <= 0) | |
1000 | { | |
cd40b329 | 1001 | vty_out (vty, " %-*s %s%s", cmd_width, cmd, token->desc, VTY_NEWLINE); |
718e3744 | 1002 | return; |
1003 | } | |
1004 | ||
cd40b329 | 1005 | buf = XCALLOC (MTYPE_TMP, strlen (token->desc) + 1); |
718e3744 | 1006 | |
cd40b329 | 1007 | for (p = token->desc; strlen (p) > desc_width; p += pos + 1) |
718e3744 | 1008 | { |
1009 | for (pos = desc_width; pos > 0; pos--) | |
1010 | if (*(p + pos) == ' ') | |
1011 | break; | |
1012 | ||
1013 | if (pos == 0) | |
1014 | break; | |
1015 | ||
1016 | strncpy (buf, p, pos); | |
1017 | buf[pos] = '\0'; | |
1018 | vty_out (vty, " %-*s %s%s", cmd_width, cmd, buf, VTY_NEWLINE); | |
1019 | ||
1020 | cmd = ""; | |
1021 | } | |
1022 | ||
1023 | vty_out (vty, " %-*s %s%s", cmd_width, cmd, p, VTY_NEWLINE); | |
1024 | ||
1025 | XFREE (MTYPE_TMP, buf); | |
1026 | } | |
1027 | ||
1028 | /* Describe matched command function. */ | |
1029 | static void | |
1030 | vty_describe_command (struct vty *vty) | |
1031 | { | |
1032 | int ret; | |
1033 | vector vline; | |
1034 | vector describe; | |
8c328f11 | 1035 | unsigned int i, width, desc_width; |
cd40b329 | 1036 | struct cmd_token *token, *token_cr = NULL; |
718e3744 | 1037 | |
1038 | vline = cmd_make_strvec (vty->buf); | |
1039 | ||
1040 | /* In case of '> ?'. */ | |
1041 | if (vline == NULL) | |
1042 | { | |
1043 | vline = vector_init (1); | |
7bf5d992 | 1044 | vector_set (vline, NULL); |
718e3744 | 1045 | } |
d0bfb22c | 1046 | else |
718e3744 | 1047 | if (isspace ((int) vty->buf[vty->length - 1])) |
7bf5d992 | 1048 | vector_set (vline, NULL); |
718e3744 | 1049 | |
1050 | describe = cmd_describe_command (vline, vty, &ret); | |
1051 | ||
1052 | vty_out (vty, "%s", VTY_NEWLINE); | |
1053 | ||
1054 | /* Ambiguous error. */ | |
1055 | switch (ret) | |
1056 | { | |
1057 | case CMD_ERR_AMBIGUOUS: | |
718e3744 | 1058 | vty_out (vty, "%% Ambiguous command.%s", VTY_NEWLINE); |
2fe8aba3 | 1059 | goto out; |
718e3744 | 1060 | break; |
1061 | case CMD_ERR_NO_MATCH: | |
718e3744 | 1062 | vty_out (vty, "%% There is no matched command.%s", VTY_NEWLINE); |
2fe8aba3 | 1063 | goto out; |
718e3744 | 1064 | break; |
d0bfb22c | 1065 | } |
718e3744 | 1066 | |
1067 | /* Get width of command string. */ | |
1068 | width = 0; | |
55468c86 | 1069 | for (i = 0; i < vector_active (describe); i++) |
cd40b329 | 1070 | if ((token = vector_slot (describe, i)) != NULL) |
718e3744 | 1071 | { |
d0bfb22c | 1072 | unsigned int len; |
718e3744 | 1073 | |
d0bfb22c QY |
1074 | if (token->text[0] == '\0') |
1075 | continue; | |
718e3744 | 1076 | |
d0bfb22c | 1077 | len = strlen (token->text); |
718e3744 | 1078 | |
d0bfb22c QY |
1079 | if (width < len) |
1080 | width = len; | |
718e3744 | 1081 | } |
1082 | ||
1083 | /* Get width of description string. */ | |
1084 | desc_width = vty->width - (width + 6); | |
1085 | ||
1086 | /* Print out description. */ | |
55468c86 | 1087 | for (i = 0; i < vector_active (describe); i++) |
cd40b329 | 1088 | if ((token = vector_slot (describe, i)) != NULL) |
718e3744 | 1089 | { |
d0bfb22c QY |
1090 | if (token->text[0] == '\0') |
1091 | continue; | |
1092 | ||
1093 | if (strcmp (token->text, CMD_CR_TEXT) == 0) | |
1094 | { | |
1095 | token_cr = token; | |
1096 | continue; | |
1097 | } | |
1098 | ||
1099 | if (!token->desc) | |
1100 | vty_out (vty, " %-s%s", | |
1101 | token->text, | |
1102 | VTY_NEWLINE); | |
1103 | else if (desc_width >= strlen (token->desc)) | |
1104 | vty_out (vty, " %-*s %s%s", width, | |
1105 | token->text, | |
1106 | token->desc, VTY_NEWLINE); | |
1107 | else | |
1108 | vty_describe_fold (vty, width, desc_width, token); | |
718e3744 | 1109 | |
70d44c5c DL |
1110 | if (IS_VARYING_TOKEN(token->type)) |
1111 | { | |
1112 | const char *ref = vector_slot(vline, vector_active(vline) - 1); | |
1113 | ||
1114 | vector varcomps = vector_init (VECTOR_MIN_SIZE); | |
1115 | cmd_variable_complete (token, ref, varcomps); | |
1116 | ||
1117 | if (vector_active(varcomps) > 0) | |
1118 | { | |
1119 | vty_out(vty, " "); | |
1120 | for (size_t j = 0; j < vector_active (varcomps); j++) | |
1121 | { | |
1122 | char *item = vector_slot (varcomps, j); | |
1123 | vty_out(vty, " %s", item); | |
1124 | XFREE(MTYPE_COMPLETION, item); | |
1125 | } | |
1126 | vty_out(vty, "%s", VTY_NEWLINE); | |
1127 | } | |
1128 | vector_free(varcomps); | |
1129 | } | |
718e3744 | 1130 | #if 0 |
d0bfb22c QY |
1131 | vty_out (vty, " %-*s %s%s", width |
1132 | desc->cmd[0] == '.' ? desc->cmd + 1 : desc->cmd, | |
1133 | desc->str ? desc->str : "", VTY_NEWLINE); | |
718e3744 | 1134 | #endif /* 0 */ |
1135 | } | |
1136 | ||
cd40b329 | 1137 | if ((token = token_cr)) |
718e3744 | 1138 | { |
cd40b329 | 1139 | if (!token->desc) |
d0bfb22c QY |
1140 | vty_out (vty, " %-s%s", |
1141 | token->text, | |
1142 | VTY_NEWLINE); | |
cd40b329 | 1143 | else if (desc_width >= strlen (token->desc)) |
d0bfb22c QY |
1144 | vty_out (vty, " %-*s %s%s", width, |
1145 | token->text, | |
1146 | token->desc, VTY_NEWLINE); | |
718e3744 | 1147 | else |
d0bfb22c | 1148 | vty_describe_fold (vty, width, desc_width, token); |
718e3744 | 1149 | } |
1150 | ||
2fe8aba3 | 1151 | out: |
718e3744 | 1152 | cmd_free_strvec (vline); |
d16e0433 PJ |
1153 | if (describe) |
1154 | vector_free (describe); | |
718e3744 | 1155 | |
1156 | vty_prompt (vty); | |
1157 | vty_redraw_line (vty); | |
1158 | } | |
1159 | ||
9fc7ebf1 | 1160 | static void |
718e3744 | 1161 | vty_clear_buf (struct vty *vty) |
1162 | { | |
1163 | memset (vty->buf, 0, vty->max); | |
1164 | } | |
1165 | ||
1166 | /* ^C stop current input and do not add command line to the history. */ | |
1167 | static void | |
1168 | vty_stop_input (struct vty *vty) | |
1169 | { | |
1170 | vty->cp = vty->length = 0; | |
1171 | vty_clear_buf (vty); | |
1172 | vty_out (vty, "%s", VTY_NEWLINE); | |
1173 | ||
1174 | switch (vty->node) | |
1175 | { | |
1176 | case VIEW_NODE: | |
1177 | case ENABLE_NODE: | |
1178 | /* Nothing to do. */ | |
1179 | break; | |
1180 | case CONFIG_NODE: | |
1181 | case INTERFACE_NODE: | |
1182 | case ZEBRA_NODE: | |
1183 | case RIP_NODE: | |
1184 | case RIPNG_NODE: | |
7f57883e | 1185 | case EIGRP_NODE: |
718e3744 | 1186 | case BGP_NODE: |
1187 | case RMAP_NODE: | |
1188 | case OSPF_NODE: | |
1189 | case OSPF6_NODE: | |
eac6e3f0 RW |
1190 | case LDP_NODE: |
1191 | case LDP_IPV4_NODE: | |
1192 | case LDP_IPV6_NODE: | |
1193 | case LDP_IPV4_IFACE_NODE: | |
1194 | case LDP_IPV6_IFACE_NODE: | |
1195 | case LDP_L2VPN_NODE: | |
1196 | case LDP_PSEUDOWIRE_NODE: | |
9e867fe6 | 1197 | case ISIS_NODE: |
718e3744 | 1198 | case KEYCHAIN_NODE: |
1199 | case KEYCHAIN_KEY_NODE: | |
1200 | case MASC_NODE: | |
12e41d03 | 1201 | case PIM_NODE: |
718e3744 | 1202 | case VTY_NODE: |
1203 | vty_config_unlock (vty); | |
1204 | vty->node = ENABLE_NODE; | |
1205 | break; | |
1206 | default: | |
1207 | /* Unknown node, we have to ignore it. */ | |
1208 | break; | |
1209 | } | |
1210 | vty_prompt (vty); | |
1211 | ||
1212 | /* Set history pointer to the latest one. */ | |
1213 | vty->hp = vty->hindex; | |
1214 | } | |
1215 | ||
1216 | /* Add current command line to the history buffer. */ | |
1217 | static void | |
1218 | vty_hist_add (struct vty *vty) | |
1219 | { | |
1220 | int index; | |
1221 | ||
1222 | if (vty->length == 0) | |
1223 | return; | |
1224 | ||
1225 | index = vty->hindex ? vty->hindex - 1 : VTY_MAXHIST - 1; | |
1226 | ||
1227 | /* Ignore the same string as previous one. */ | |
1228 | if (vty->hist[index]) | |
1229 | if (strcmp (vty->buf, vty->hist[index]) == 0) | |
1230 | { | |
1231 | vty->hp = vty->hindex; | |
1232 | return; | |
1233 | } | |
1234 | ||
1235 | /* Insert history entry. */ | |
1236 | if (vty->hist[vty->hindex]) | |
1237 | XFREE (MTYPE_VTY_HIST, vty->hist[vty->hindex]); | |
1238 | vty->hist[vty->hindex] = XSTRDUP (MTYPE_VTY_HIST, vty->buf); | |
1239 | ||
1240 | /* History index rotation. */ | |
1241 | vty->hindex++; | |
1242 | if (vty->hindex == VTY_MAXHIST) | |
1243 | vty->hindex = 0; | |
1244 | ||
1245 | vty->hp = vty->hindex; | |
1246 | } | |
1247 | ||
1248 | /* #define TELNET_OPTION_DEBUG */ | |
1249 | ||
1250 | /* Get telnet window size. */ | |
1251 | static int | |
1252 | vty_telnet_option (struct vty *vty, unsigned char *buf, int nbytes) | |
1253 | { | |
1254 | #ifdef TELNET_OPTION_DEBUG | |
1255 | int i; | |
1256 | ||
1257 | for (i = 0; i < nbytes; i++) | |
1258 | { | |
1259 | switch (buf[i]) | |
d0bfb22c QY |
1260 | { |
1261 | case IAC: | |
1262 | vty_out (vty, "IAC "); | |
1263 | break; | |
1264 | case WILL: | |
1265 | vty_out (vty, "WILL "); | |
1266 | break; | |
1267 | case WONT: | |
1268 | vty_out (vty, "WONT "); | |
1269 | break; | |
1270 | case DO: | |
1271 | vty_out (vty, "DO "); | |
1272 | break; | |
1273 | case DONT: | |
1274 | vty_out (vty, "DONT "); | |
1275 | break; | |
1276 | case SB: | |
1277 | vty_out (vty, "SB "); | |
1278 | break; | |
1279 | case SE: | |
1280 | vty_out (vty, "SE "); | |
1281 | break; | |
1282 | case TELOPT_ECHO: | |
1283 | vty_out (vty, "TELOPT_ECHO %s", VTY_NEWLINE); | |
1284 | break; | |
1285 | case TELOPT_SGA: | |
1286 | vty_out (vty, "TELOPT_SGA %s", VTY_NEWLINE); | |
1287 | break; | |
1288 | case TELOPT_NAWS: | |
1289 | vty_out (vty, "TELOPT_NAWS %s", VTY_NEWLINE); | |
1290 | break; | |
1291 | default: | |
1292 | vty_out (vty, "%x ", buf[i]); | |
1293 | break; | |
1294 | } | |
718e3744 | 1295 | } |
1296 | vty_out (vty, "%s", VTY_NEWLINE); | |
1297 | ||
1298 | #endif /* TELNET_OPTION_DEBUG */ | |
1299 | ||
1300 | switch (buf[0]) | |
1301 | { | |
1302 | case SB: | |
9fc7ebf1 | 1303 | vty->sb_len = 0; |
718e3744 | 1304 | vty->iac_sb_in_progress = 1; |
1305 | return 0; | |
1306 | break; | |
d0bfb22c | 1307 | case SE: |
718e3744 | 1308 | { |
d0bfb22c QY |
1309 | if (!vty->iac_sb_in_progress) |
1310 | return 0; | |
1311 | ||
1312 | if ((vty->sb_len == 0) || (vty->sb_buf[0] == '\0')) | |
1313 | { | |
1314 | vty->iac_sb_in_progress = 0; | |
1315 | return 0; | |
1316 | } | |
1317 | switch (vty->sb_buf[0]) | |
1318 | { | |
1319 | case TELOPT_NAWS: | |
1320 | if (vty->sb_len != TELNET_NAWS_SB_LEN) | |
1321 | zlog_warn("RFC 1073 violation detected: telnet NAWS option " | |
1322 | "should send %d characters, but we received %lu", | |
1323 | TELNET_NAWS_SB_LEN, (u_long)vty->sb_len); | |
1324 | else if (sizeof(vty->sb_buf) < TELNET_NAWS_SB_LEN) | |
1325 | zlog_err("Bug detected: sizeof(vty->sb_buf) %lu < %d, " | |
1326 | "too small to handle the telnet NAWS option", | |
1327 | (u_long)sizeof(vty->sb_buf), TELNET_NAWS_SB_LEN); | |
1328 | else | |
1329 | { | |
1330 | vty->width = ((vty->sb_buf[1] << 8)|vty->sb_buf[2]); | |
1331 | vty->height = ((vty->sb_buf[3] << 8)|vty->sb_buf[4]); | |
9fc7ebf1 | 1332 | #ifdef TELNET_OPTION_DEBUG |
d0bfb22c QY |
1333 | vty_out(vty, "TELNET NAWS window size negotiation completed: " |
1334 | "width %d, height %d%s", | |
1335 | vty->width, vty->height, VTY_NEWLINE); | |
9fc7ebf1 | 1336 | #endif |
d0bfb22c QY |
1337 | } |
1338 | break; | |
1339 | } | |
1340 | vty->iac_sb_in_progress = 0; | |
1341 | return 0; | |
1342 | break; | |
718e3744 | 1343 | } |
1344 | default: | |
1345 | break; | |
1346 | } | |
1347 | return 1; | |
1348 | } | |
1349 | ||
1350 | /* Execute current command line. */ | |
1351 | static int | |
1352 | vty_execute (struct vty *vty) | |
1353 | { | |
1354 | int ret; | |
1355 | ||
1356 | ret = CMD_SUCCESS; | |
1357 | ||
1358 | switch (vty->node) | |
1359 | { | |
1360 | case AUTH_NODE: | |
1361 | case AUTH_ENABLE_NODE: | |
1362 | vty_auth (vty, vty->buf); | |
1363 | break; | |
1364 | default: | |
1365 | ret = vty_command (vty, vty->buf); | |
1366 | if (vty->type == VTY_TERM) | |
d0bfb22c | 1367 | vty_hist_add (vty); |
718e3744 | 1368 | break; |
1369 | } | |
1370 | ||
1371 | /* Clear command line buffer. */ | |
1372 | vty->cp = vty->length = 0; | |
1373 | vty_clear_buf (vty); | |
1374 | ||
5a646650 | 1375 | if (vty->status != VTY_CLOSE ) |
718e3744 | 1376 | vty_prompt (vty); |
1377 | ||
1378 | return ret; | |
1379 | } | |
1380 | ||
1381 | #define CONTROL(X) ((X) - '@') | |
1382 | #define VTY_NORMAL 0 | |
1383 | #define VTY_PRE_ESCAPE 1 | |
1384 | #define VTY_ESCAPE 2 | |
1385 | ||
1386 | /* Escape character command map. */ | |
1387 | static void | |
1388 | vty_escape_map (unsigned char c, struct vty *vty) | |
1389 | { | |
1390 | switch (c) | |
1391 | { | |
1392 | case ('A'): | |
1393 | vty_previous_line (vty); | |
1394 | break; | |
1395 | case ('B'): | |
1396 | vty_next_line (vty); | |
1397 | break; | |
1398 | case ('C'): | |
1399 | vty_forward_char (vty); | |
1400 | break; | |
1401 | case ('D'): | |
1402 | vty_backward_char (vty); | |
1403 | break; | |
1404 | default: | |
1405 | break; | |
1406 | } | |
1407 | ||
1408 | /* Go back to normal mode. */ | |
1409 | vty->escape = VTY_NORMAL; | |
1410 | } | |
1411 | ||
1412 | /* Quit print out to the buffer. */ | |
1413 | static void | |
1414 | vty_buffer_reset (struct vty *vty) | |
1415 | { | |
1416 | buffer_reset (vty->obuf); | |
1417 | vty_prompt (vty); | |
1418 | vty_redraw_line (vty); | |
1419 | } | |
1420 | ||
1421 | /* Read data via vty socket. */ | |
1422 | static int | |
1423 | vty_read (struct thread *thread) | |
1424 | { | |
1425 | int i; | |
718e3744 | 1426 | int nbytes; |
1427 | unsigned char buf[VTY_READ_BUFSIZ]; | |
1428 | ||
1429 | int vty_sock = THREAD_FD (thread); | |
1430 | struct vty *vty = THREAD_ARG (thread); | |
1431 | vty->t_read = NULL; | |
1432 | ||
1433 | /* Read raw data from socket */ | |
9fc7ebf1 | 1434 | if ((nbytes = read (vty->fd, buf, VTY_READ_BUFSIZ)) <= 0) |
1435 | { | |
1436 | if (nbytes < 0) | |
d0bfb22c QY |
1437 | { |
1438 | if (ERRNO_IO_RETRY(errno)) | |
1439 | { | |
1440 | vty_event (VTY_READ, vty_sock, vty); | |
1441 | return 0; | |
1442 | } | |
1443 | vty->monitor = 0; /* disable monitoring to avoid infinite recursion */ | |
1444 | zlog_warn("%s: read error on vty client fd %d, closing: %s", | |
1445 | __func__, vty->fd, safe_strerror(errno)); | |
009a4a07 | 1446 | buffer_reset(vty->obuf); |
d0bfb22c | 1447 | } |
9fc7ebf1 | 1448 | vty->status = VTY_CLOSE; |
1449 | } | |
718e3744 | 1450 | |
d0bfb22c | 1451 | for (i = 0; i < nbytes; i++) |
718e3744 | 1452 | { |
1453 | if (buf[i] == IAC) | |
d0bfb22c QY |
1454 | { |
1455 | if (!vty->iac) | |
1456 | { | |
1457 | vty->iac = 1; | |
1458 | continue; | |
1459 | } | |
1460 | else | |
1461 | { | |
1462 | vty->iac = 0; | |
1463 | } | |
1464 | } | |
1465 | ||
718e3744 | 1466 | if (vty->iac_sb_in_progress && !vty->iac) |
d0bfb22c QY |
1467 | { |
1468 | if (vty->sb_len < sizeof(vty->sb_buf)) | |
1469 | vty->sb_buf[vty->sb_len] = buf[i]; | |
1470 | vty->sb_len++; | |
1471 | continue; | |
1472 | } | |
718e3744 | 1473 | |
1474 | if (vty->iac) | |
d0bfb22c QY |
1475 | { |
1476 | /* In case of telnet command */ | |
1477 | int ret = 0; | |
1478 | ret = vty_telnet_option (vty, buf + i, nbytes - i); | |
1479 | vty->iac = 0; | |
1480 | i += ret; | |
1481 | continue; | |
1482 | } | |
1483 | ||
718e3744 | 1484 | |
1485 | if (vty->status == VTY_MORE) | |
d0bfb22c QY |
1486 | { |
1487 | switch (buf[i]) | |
1488 | { | |
1489 | case CONTROL('C'): | |
1490 | case 'q': | |
1491 | case 'Q': | |
1492 | vty_buffer_reset (vty); | |
1493 | break; | |
718e3744 | 1494 | #if 0 /* More line does not work for "show ip bgp". */ |
d0bfb22c QY |
1495 | case '\n': |
1496 | case '\r': | |
1497 | vty->status = VTY_MORELINE; | |
1498 | break; | |
718e3744 | 1499 | #endif |
d0bfb22c QY |
1500 | default: |
1501 | break; | |
1502 | } | |
1503 | continue; | |
1504 | } | |
718e3744 | 1505 | |
1506 | /* Escape character. */ | |
1507 | if (vty->escape == VTY_ESCAPE) | |
d0bfb22c QY |
1508 | { |
1509 | vty_escape_map (buf[i], vty); | |
1510 | continue; | |
1511 | } | |
718e3744 | 1512 | |
1513 | /* Pre-escape status. */ | |
1514 | if (vty->escape == VTY_PRE_ESCAPE) | |
d0bfb22c QY |
1515 | { |
1516 | switch (buf[i]) | |
1517 | { | |
1518 | case '[': | |
1519 | vty->escape = VTY_ESCAPE; | |
1520 | break; | |
1521 | case 'b': | |
1522 | vty_backward_word (vty); | |
1523 | vty->escape = VTY_NORMAL; | |
1524 | break; | |
1525 | case 'f': | |
1526 | vty_forward_word (vty); | |
1527 | vty->escape = VTY_NORMAL; | |
1528 | break; | |
1529 | case 'd': | |
1530 | vty_forward_kill_word (vty); | |
1531 | vty->escape = VTY_NORMAL; | |
1532 | break; | |
1533 | case CONTROL('H'): | |
1534 | case 0x7f: | |
1535 | vty_backward_kill_word (vty); | |
1536 | vty->escape = VTY_NORMAL; | |
1537 | break; | |
1538 | default: | |
1539 | vty->escape = VTY_NORMAL; | |
1540 | break; | |
1541 | } | |
1542 | continue; | |
1543 | } | |
718e3744 | 1544 | |
1545 | switch (buf[i]) | |
d0bfb22c QY |
1546 | { |
1547 | case CONTROL('A'): | |
1548 | vty_beginning_of_line (vty); | |
1549 | break; | |
1550 | case CONTROL('B'): | |
1551 | vty_backward_char (vty); | |
1552 | break; | |
1553 | case CONTROL('C'): | |
1554 | vty_stop_input (vty); | |
1555 | break; | |
1556 | case CONTROL('D'): | |
1557 | vty_delete_char (vty); | |
1558 | break; | |
1559 | case CONTROL('E'): | |
1560 | vty_end_of_line (vty); | |
1561 | break; | |
1562 | case CONTROL('F'): | |
1563 | vty_forward_char (vty); | |
1564 | break; | |
1565 | case CONTROL('H'): | |
1566 | case 0x7f: | |
1567 | vty_delete_backward_char (vty); | |
1568 | break; | |
1569 | case CONTROL('K'): | |
1570 | vty_kill_line (vty); | |
1571 | break; | |
1572 | case CONTROL('N'): | |
1573 | vty_next_line (vty); | |
1574 | break; | |
1575 | case CONTROL('P'): | |
1576 | vty_previous_line (vty); | |
1577 | break; | |
1578 | case CONTROL('T'): | |
1579 | vty_transpose_chars (vty); | |
1580 | break; | |
1581 | case CONTROL('U'): | |
1582 | vty_kill_line_from_beginning (vty); | |
1583 | break; | |
1584 | case CONTROL('W'): | |
1585 | vty_backward_kill_word (vty); | |
1586 | break; | |
1587 | case CONTROL('Z'): | |
1588 | vty_end_config (vty); | |
1589 | break; | |
1590 | case '\n': | |
1591 | case '\r': | |
1592 | vty_out (vty, "%s", VTY_NEWLINE); | |
1593 | vty_execute (vty); | |
1594 | break; | |
1595 | case '\t': | |
1596 | vty_complete_command (vty); | |
1597 | break; | |
1598 | case '?': | |
1599 | if (vty->node == AUTH_NODE || vty->node == AUTH_ENABLE_NODE) | |
1600 | vty_self_insert (vty, buf[i]); | |
1601 | else | |
1602 | vty_describe_command (vty); | |
1603 | break; | |
1604 | case '\033': | |
1605 | if (i + 1 < nbytes && buf[i + 1] == '[') | |
1606 | { | |
1607 | vty->escape = VTY_ESCAPE; | |
1608 | i++; | |
1609 | } | |
1610 | else | |
1611 | vty->escape = VTY_PRE_ESCAPE; | |
1612 | break; | |
1613 | default: | |
1614 | if (buf[i] > 31 && buf[i] < 127) | |
1615 | vty_self_insert (vty, buf[i]); | |
1616 | break; | |
1617 | } | |
718e3744 | 1618 | } |
1619 | ||
1620 | /* Check status. */ | |
1621 | if (vty->status == VTY_CLOSE) | |
1622 | vty_close (vty); | |
1623 | else | |
1624 | { | |
c5e69a02 | 1625 | vty_event (VTY_WRITE, vty->wfd, vty); |
718e3744 | 1626 | vty_event (VTY_READ, vty_sock, vty); |
1627 | } | |
1628 | return 0; | |
1629 | } | |
1630 | ||
1631 | /* Flush buffer to the vty. */ | |
1632 | static int | |
1633 | vty_flush (struct thread *thread) | |
1634 | { | |
1635 | int erase; | |
9fc7ebf1 | 1636 | buffer_status_t flushrc; |
718e3744 | 1637 | int vty_sock = THREAD_FD (thread); |
1638 | struct vty *vty = THREAD_ARG (thread); | |
9fc7ebf1 | 1639 | |
718e3744 | 1640 | vty->t_write = NULL; |
1641 | ||
1642 | /* Tempolary disable read thread. */ | |
9fc7ebf1 | 1643 | if ((vty->lines == 0) && vty->t_read) |
1644 | { | |
1645 | thread_cancel (vty->t_read); | |
1646 | vty->t_read = NULL; | |
1647 | } | |
718e3744 | 1648 | |
1649 | /* Function execution continue. */ | |
9fc7ebf1 | 1650 | erase = ((vty->status == VTY_MORE || vty->status == VTY_MORELINE)); |
1651 | ||
1652 | /* N.B. if width is 0, that means we don't know the window size. */ | |
1035065f | 1653 | if ((vty->lines == 0) || (vty->width == 0) || (vty->height == 0)) |
c5e69a02 | 1654 | flushrc = buffer_flush_available(vty->obuf, vty_sock); |
9fc7ebf1 | 1655 | else if (vty->status == VTY_MORELINE) |
c5e69a02 | 1656 | flushrc = buffer_flush_window(vty->obuf, vty_sock, vty->width, |
d0bfb22c | 1657 | 1, erase, 0); |
9fc7ebf1 | 1658 | else |
c5e69a02 | 1659 | flushrc = buffer_flush_window(vty->obuf, vty_sock, vty->width, |
d0bfb22c QY |
1660 | vty->lines >= 0 ? vty->lines : |
1661 | vty->height, | |
1662 | erase, 0); | |
9fc7ebf1 | 1663 | switch (flushrc) |
1664 | { | |
1665 | case BUFFER_ERROR: | |
74542d73 | 1666 | vty->monitor = 0; /* disable monitoring to avoid infinite recursion */ |
9fc7ebf1 | 1667 | zlog_warn("buffer_flush failed on vty client fd %d, closing", |
d0bfb22c | 1668 | vty->fd); |
9fc7ebf1 | 1669 | buffer_reset(vty->obuf); |
1670 | vty_close(vty); | |
1671 | return 0; | |
1672 | case BUFFER_EMPTY: | |
1673 | if (vty->status == VTY_CLOSE) | |
d0bfb22c | 1674 | vty_close (vty); |
718e3744 | 1675 | else |
d0bfb22c QY |
1676 | { |
1677 | vty->status = VTY_NORMAL; | |
1678 | if (vty->lines == 0) | |
1679 | vty_event (VTY_READ, vty_sock, vty); | |
1680 | } | |
9fc7ebf1 | 1681 | break; |
1682 | case BUFFER_PENDING: | |
1683 | /* There is more data waiting to be written. */ | |
1684 | vty->status = VTY_MORE; | |
1685 | if (vty->lines == 0) | |
d0bfb22c | 1686 | vty_event (VTY_WRITE, vty_sock, vty); |
9fc7ebf1 | 1687 | break; |
1688 | } | |
718e3744 | 1689 | |
1690 | return 0; | |
1691 | } | |
1692 | ||
b7642925 DL |
1693 | /* allocate and initialise vty */ |
1694 | static struct vty * | |
1695 | vty_new_init (int vty_sock) | |
1696 | { | |
1697 | struct vty *vty; | |
1698 | ||
1699 | vty = vty_new (); | |
1700 | vty->fd = vty_sock; | |
1701 | vty->wfd = vty_sock; | |
1702 | vty->type = VTY_TERM; | |
1703 | vty->node = AUTH_NODE; | |
1704 | vty->fail = 0; | |
1705 | vty->cp = 0; | |
1706 | vty_clear_buf (vty); | |
1707 | vty->length = 0; | |
1708 | memset (vty->hist, 0, sizeof (vty->hist)); | |
1709 | vty->hp = 0; | |
1710 | vty->hindex = 0; | |
1711 | vector_set_index (vtyvec, vty_sock, vty); | |
1712 | vty->status = VTY_NORMAL; | |
1713 | vty->lines = -1; | |
1714 | vty->iac = 0; | |
1715 | vty->iac_sb_in_progress = 0; | |
1716 | vty->sb_len = 0; | |
1717 | ||
1718 | return vty; | |
1719 | } | |
1720 | ||
718e3744 | 1721 | /* Create new vty structure. */ |
9fc7ebf1 | 1722 | static struct vty * |
718e3744 | 1723 | vty_create (int vty_sock, union sockunion *su) |
1724 | { | |
d227617a | 1725 | char buf[SU_ADDRSTRLEN]; |
718e3744 | 1726 | struct vty *vty; |
1727 | ||
d227617a JBD |
1728 | sockunion2str(su, buf, SU_ADDRSTRLEN); |
1729 | ||
718e3744 | 1730 | /* Allocate new vty structure and set up default values. */ |
b7642925 DL |
1731 | vty = vty_new_init (vty_sock); |
1732 | ||
1733 | /* configurable parameters not part of basic init */ | |
1734 | vty->v_timeout = vty_timeout_val; | |
d227617a | 1735 | strcpy (vty->address, buf); |
718e3744 | 1736 | if (no_password_check) |
1737 | { | |
3c8ab49f | 1738 | if (host.advanced) |
d0bfb22c | 1739 | vty->node = ENABLE_NODE; |
718e3744 | 1740 | else |
d0bfb22c | 1741 | vty->node = VIEW_NODE; |
718e3744 | 1742 | } |
718e3744 | 1743 | if (host.lines >= 0) |
1744 | vty->lines = host.lines; | |
718e3744 | 1745 | |
1746 | if (! no_password_check) | |
1747 | { | |
1748 | /* Vty is not available if password isn't set. */ | |
1749 | if (host.password == NULL && host.password_encrypt == NULL) | |
d0bfb22c QY |
1750 | { |
1751 | vty_out (vty, "Vty password is not set.%s", VTY_NEWLINE); | |
1752 | vty->status = VTY_CLOSE; | |
1753 | vty_close (vty); | |
1754 | return NULL; | |
1755 | } | |
718e3744 | 1756 | } |
1757 | ||
1758 | /* Say hello to the world. */ | |
1759 | vty_hello (vty); | |
1760 | if (! no_password_check) | |
1761 | vty_out (vty, "%sUser Access Verification%s%s", VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE); | |
1762 | ||
1763 | /* Setting up terminal. */ | |
1764 | vty_will_echo (vty); | |
1765 | vty_will_suppress_go_ahead (vty); | |
1766 | ||
1767 | vty_dont_linemode (vty); | |
1768 | vty_do_window_size (vty); | |
1769 | /* vty_dont_lflow_ahead (vty); */ | |
1770 | ||
1771 | vty_prompt (vty); | |
1772 | ||
1773 | /* Add read/write thread. */ | |
1774 | vty_event (VTY_WRITE, vty_sock, vty); | |
1775 | vty_event (VTY_READ, vty_sock, vty); | |
1776 | ||
1777 | return vty; | |
1778 | } | |
1779 | ||
b7642925 | 1780 | /* create vty for stdio */ |
b510a06e DL |
1781 | static struct termios stdio_orig_termios; |
1782 | static struct vty *stdio_vty = NULL; | |
dbf78092 | 1783 | static void (*stdio_vty_atclose)(void); |
b510a06e DL |
1784 | |
1785 | static void | |
1786 | vty_stdio_reset (void) | |
1787 | { | |
1788 | if (stdio_vty) | |
1789 | { | |
1790 | tcsetattr (0, TCSANOW, &stdio_orig_termios); | |
1791 | stdio_vty = NULL; | |
dbf78092 DL |
1792 | |
1793 | if (stdio_vty_atclose) | |
1794 | stdio_vty_atclose (); | |
1795 | stdio_vty_atclose = NULL; | |
b510a06e DL |
1796 | } |
1797 | } | |
1798 | ||
b7642925 | 1799 | struct vty * |
dbf78092 | 1800 | vty_stdio (void (*atclose)()) |
b7642925 DL |
1801 | { |
1802 | struct vty *vty; | |
b510a06e | 1803 | struct termios termios; |
b7642925 | 1804 | |
b510a06e DL |
1805 | /* refuse creating two vtys on stdio */ |
1806 | if (stdio_vty) | |
1807 | return NULL; | |
1808 | ||
1809 | vty = stdio_vty = vty_new_init (0); | |
dbf78092 | 1810 | stdio_vty_atclose = atclose; |
b7642925 DL |
1811 | vty->wfd = 1; |
1812 | ||
1813 | /* always have stdio vty in a known _unchangeable_ state, don't want config | |
1814 | * to have any effect here to make sure scripting this works as intended */ | |
1815 | vty->node = ENABLE_NODE; | |
1816 | vty->v_timeout = 0; | |
1817 | strcpy (vty->address, "console"); | |
1818 | ||
b510a06e DL |
1819 | if (!tcgetattr (0, &stdio_orig_termios)) |
1820 | { | |
1821 | termios = stdio_orig_termios; | |
1822 | termios.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | |
1823 | | INLCR | IGNCR | ICRNL | IXON); | |
1824 | termios.c_oflag &= ~OPOST; | |
1825 | termios.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN); | |
1826 | termios.c_cflag &= ~(CSIZE | PARENB); | |
1827 | termios.c_cflag |= CS8; | |
1828 | tcsetattr (0, TCSANOW, &termios); | |
1829 | } | |
1830 | ||
b7642925 DL |
1831 | vty_prompt (vty); |
1832 | ||
1833 | /* Add read/write thread. */ | |
1834 | vty_event (VTY_WRITE, 1, vty); | |
1835 | vty_event (VTY_READ, 0, vty); | |
1836 | ||
1837 | return vty; | |
1838 | } | |
1839 | ||
718e3744 | 1840 | /* Accept connection from the network. */ |
1841 | static int | |
1842 | vty_accept (struct thread *thread) | |
1843 | { | |
1844 | int vty_sock; | |
718e3744 | 1845 | union sockunion su; |
1846 | int ret; | |
1847 | unsigned int on; | |
1848 | int accept_sock; | |
40ee54a7 | 1849 | struct prefix p; |
718e3744 | 1850 | struct access_list *acl = NULL; |
d227617a | 1851 | char buf[SU_ADDRSTRLEN]; |
718e3744 | 1852 | |
1853 | accept_sock = THREAD_FD (thread); | |
1854 | ||
1855 | /* We continue hearing vty socket. */ | |
1856 | vty_event (VTY_SERV, accept_sock, NULL); | |
1857 | ||
1858 | memset (&su, 0, sizeof (union sockunion)); | |
1859 | ||
1860 | /* We can handle IPv4 or IPv6 socket. */ | |
1861 | vty_sock = sockunion_accept (accept_sock, &su); | |
1862 | if (vty_sock < 0) | |
1863 | { | |
6099b3b5 | 1864 | zlog_warn ("can't accept vty socket : %s", safe_strerror (errno)); |
718e3744 | 1865 | return -1; |
1866 | } | |
9fc7ebf1 | 1867 | set_nonblocking(vty_sock); |
2da59394 | 1868 | set_cloexec(vty_sock); |
718e3744 | 1869 | |
40ee54a7 | 1870 | sockunion2hostprefix (&su, &p); |
718e3744 | 1871 | |
1872 | /* VTY's accesslist apply. */ | |
40ee54a7 | 1873 | if (p.family == AF_INET && vty_accesslist_name) |
718e3744 | 1874 | { |
1875 | if ((acl = access_list_lookup (AFI_IP, vty_accesslist_name)) && | |
d0bfb22c QY |
1876 | (access_list_apply (acl, &p) == FILTER_DENY)) |
1877 | { | |
4525281a DL |
1878 | zlog_info ("Vty connection refused from %s", |
1879 | sockunion2str (&su, buf, SU_ADDRSTRLEN)); | |
d0bfb22c QY |
1880 | close (vty_sock); |
1881 | ||
1882 | /* continue accepting connections */ | |
1883 | vty_event (VTY_SERV, accept_sock, NULL); | |
1884 | ||
1885 | return 0; | |
1886 | } | |
718e3744 | 1887 | } |
1888 | ||
718e3744 | 1889 | /* VTY's ipv6 accesslist apply. */ |
40ee54a7 | 1890 | if (p.family == AF_INET6 && vty_ipv6_accesslist_name) |
718e3744 | 1891 | { |
1892 | if ((acl = access_list_lookup (AFI_IP6, vty_ipv6_accesslist_name)) && | |
d0bfb22c QY |
1893 | (access_list_apply (acl, &p) == FILTER_DENY)) |
1894 | { | |
4525281a DL |
1895 | zlog_info ("Vty connection refused from %s", |
1896 | sockunion2str (&su, buf, SU_ADDRSTRLEN)); | |
d0bfb22c QY |
1897 | close (vty_sock); |
1898 | ||
1899 | /* continue accepting connections */ | |
1900 | vty_event (VTY_SERV, accept_sock, NULL); | |
1901 | ||
1902 | return 0; | |
1903 | } | |
718e3744 | 1904 | } |
d0bfb22c | 1905 | |
718e3744 | 1906 | on = 1; |
d0bfb22c QY |
1907 | ret = setsockopt (vty_sock, IPPROTO_TCP, TCP_NODELAY, |
1908 | (char *) &on, sizeof (on)); | |
718e3744 | 1909 | if (ret < 0) |
4525281a DL |
1910 | zlog_info ("can't set sockopt to vty_sock : %s", |
1911 | safe_strerror (errno)); | |
718e3744 | 1912 | |
4525281a DL |
1913 | zlog_info ("Vty connection from %s", |
1914 | sockunion2str (&su, buf, SU_ADDRSTRLEN)); | |
78e6cd98 | 1915 | |
9206f9ec | 1916 | vty_create (vty_sock, &su); |
718e3744 | 1917 | |
1918 | return 0; | |
1919 | } | |
1920 | ||
9fc7ebf1 | 1921 | static void |
718e3744 | 1922 | vty_serv_sock_addrinfo (const char *hostname, unsigned short port) |
1923 | { | |
1924 | int ret; | |
1925 | struct addrinfo req; | |
1926 | struct addrinfo *ainfo; | |
1927 | struct addrinfo *ainfo_save; | |
1928 | int sock; | |
1929 | char port_str[BUFSIZ]; | |
1930 | ||
1931 | memset (&req, 0, sizeof (struct addrinfo)); | |
1932 | req.ai_flags = AI_PASSIVE; | |
1933 | req.ai_family = AF_UNSPEC; | |
1934 | req.ai_socktype = SOCK_STREAM; | |
1935 | sprintf (port_str, "%d", port); | |
1936 | port_str[sizeof (port_str) - 1] = '\0'; | |
1937 | ||
1938 | ret = getaddrinfo (hostname, port_str, &req, &ainfo); | |
1939 | ||
1940 | if (ret != 0) | |
1941 | { | |
1942 | fprintf (stderr, "getaddrinfo failed: %s\n", gai_strerror (ret)); | |
1943 | exit (1); | |
1944 | } | |
1945 | ||
1946 | ainfo_save = ainfo; | |
1947 | ||
1948 | do | |
1949 | { | |
1950 | if (ainfo->ai_family != AF_INET | |
d0bfb22c | 1951 | && ainfo->ai_family != AF_INET6 |
d0bfb22c QY |
1952 | ) |
1953 | continue; | |
718e3744 | 1954 | |
1955 | sock = socket (ainfo->ai_family, ainfo->ai_socktype, ainfo->ai_protocol); | |
1956 | if (sock < 0) | |
d0bfb22c | 1957 | continue; |
718e3744 | 1958 | |
ca051269 | 1959 | sockopt_v6only (ainfo->ai_family, sock); |
718e3744 | 1960 | sockopt_reuseaddr (sock); |
1961 | sockopt_reuseport (sock); | |
2da59394 | 1962 | set_cloexec (sock); |
718e3744 | 1963 | |
1964 | ret = bind (sock, ainfo->ai_addr, ainfo->ai_addrlen); | |
1965 | if (ret < 0) | |
d0bfb22c QY |
1966 | { |
1967 | close (sock); /* Avoid sd leak. */ | |
1968 | continue; | |
1969 | } | |
718e3744 | 1970 | |
1971 | ret = listen (sock, 3); | |
d0bfb22c QY |
1972 | if (ret < 0) |
1973 | { | |
1974 | close (sock); /* Avoid sd leak. */ | |
1975 | continue; | |
1976 | } | |
718e3744 | 1977 | |
1978 | vty_event (VTY_SERV, sock, NULL); | |
1979 | } | |
1980 | while ((ainfo = ainfo->ai_next) != NULL); | |
1981 | ||
1982 | freeaddrinfo (ainfo_save); | |
1983 | } | |
718e3744 | 1984 | |
1985 | #ifdef VTYSH | |
1986 | /* For sockaddr_un. */ | |
1987 | #include <sys/un.h> | |
1988 | ||
1989 | /* VTY shell UNIX domain socket. */ | |
9fc7ebf1 | 1990 | static void |
6ad96ea1 | 1991 | vty_serv_un (const char *path) |
718e3744 | 1992 | { |
1993 | int ret; | |
75e15fe4 | 1994 | int sock, len; |
718e3744 | 1995 | struct sockaddr_un serv; |
1996 | mode_t old_mask; | |
edd7c245 | 1997 | struct zprivs_ids_t ids; |
d0bfb22c | 1998 | |
718e3744 | 1999 | /* First of all, unlink existing socket */ |
2000 | unlink (path); | |
2001 | ||
2002 | /* Set umask */ | |
1921e6f8 | 2003 | old_mask = umask (0007); |
718e3744 | 2004 | |
2005 | /* Make UNIX domain socket. */ | |
2006 | sock = socket (AF_UNIX, SOCK_STREAM, 0); | |
2007 | if (sock < 0) | |
2008 | { | |
6a52d0d1 | 2009 | zlog_err("Cannot create unix stream socket: %s", safe_strerror(errno)); |
718e3744 | 2010 | return; |
2011 | } | |
2012 | ||
2013 | /* Make server socket. */ | |
2014 | memset (&serv, 0, sizeof (struct sockaddr_un)); | |
2015 | serv.sun_family = AF_UNIX; | |
14878121 | 2016 | strlcpy (serv.sun_path, path, sizeof (serv.sun_path)); |
6f0e3f6e | 2017 | #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN |
718e3744 | 2018 | len = serv.sun_len = SUN_LEN(&serv); |
2019 | #else | |
2020 | len = sizeof (serv.sun_family) + strlen (serv.sun_path); | |
6f0e3f6e | 2021 | #endif /* HAVE_STRUCT_SOCKADDR_UN_SUN_LEN */ |
718e3744 | 2022 | |
2da59394 DL |
2023 | set_cloexec (sock); |
2024 | ||
718e3744 | 2025 | ret = bind (sock, (struct sockaddr *) &serv, len); |
2026 | if (ret < 0) | |
2027 | { | |
6a52d0d1 | 2028 | zlog_err("Cannot bind path %s: %s", path, safe_strerror(errno)); |
d0bfb22c | 2029 | close (sock); /* Avoid sd leak. */ |
718e3744 | 2030 | return; |
2031 | } | |
2032 | ||
2033 | ret = listen (sock, 5); | |
2034 | if (ret < 0) | |
2035 | { | |
6a52d0d1 | 2036 | zlog_err("listen(fd %d) failed: %s", sock, safe_strerror(errno)); |
d0bfb22c | 2037 | close (sock); /* Avoid sd leak. */ |
718e3744 | 2038 | return; |
2039 | } | |
2040 | ||
2041 | umask (old_mask); | |
2042 | ||
edd7c245 | 2043 | zprivs_get_ids(&ids); |
d0bfb22c | 2044 | |
38657f2e MW |
2045 | /* Hack: ids.gid_vty is actually a uint, but we stored -1 in it |
2046 | earlier for the case when we don't need to chown the file | |
2047 | type casting it here to make a compare */ | |
2048 | if ((int)ids.gid_vty > 0) | |
edd7c245 | 2049 | { |
2050 | /* set group of socket */ | |
2051 | if ( chown (path, -1, ids.gid_vty) ) | |
2052 | { | |
2053 | zlog_err ("vty_serv_un: could chown socket, %s", | |
6099b3b5 | 2054 | safe_strerror (errno) ); |
edd7c245 | 2055 | } |
2056 | } | |
2057 | ||
718e3744 | 2058 | vty_event (VTYSH_SERV, sock, NULL); |
2059 | } | |
2060 | ||
2061 | /* #define VTYSH_DEBUG 1 */ | |
2062 | ||
2063 | static int | |
2064 | vtysh_accept (struct thread *thread) | |
2065 | { | |
2066 | int accept_sock; | |
2067 | int sock; | |
2068 | int client_len; | |
2069 | struct sockaddr_un client; | |
2070 | struct vty *vty; | |
d0bfb22c | 2071 | |
718e3744 | 2072 | accept_sock = THREAD_FD (thread); |
2073 | ||
2074 | vty_event (VTYSH_SERV, accept_sock, NULL); | |
2075 | ||
2076 | memset (&client, 0, sizeof (struct sockaddr_un)); | |
2077 | client_len = sizeof (struct sockaddr_un); | |
2078 | ||
e473b032 | 2079 | sock = accept (accept_sock, (struct sockaddr *) &client, |
d0bfb22c | 2080 | (socklen_t *) &client_len); |
718e3744 | 2081 | |
2082 | if (sock < 0) | |
2083 | { | |
6099b3b5 | 2084 | zlog_warn ("can't accept vty socket : %s", safe_strerror (errno)); |
718e3744 | 2085 | return -1; |
2086 | } | |
2087 | ||
9fc7ebf1 | 2088 | if (set_nonblocking(sock) < 0) |
75e15fe4 | 2089 | { |
9fc7ebf1 | 2090 | zlog_warn ("vtysh_accept: could not set vty socket %d to non-blocking," |
2091 | " %s, closing", sock, safe_strerror (errno)); | |
75e15fe4 | 2092 | close (sock); |
2093 | return -1; | |
2094 | } | |
2da59394 DL |
2095 | set_cloexec(sock); |
2096 | ||
718e3744 | 2097 | #ifdef VTYSH_DEBUG |
2098 | printf ("VTY shell accept\n"); | |
2099 | #endif /* VTYSH_DEBUG */ | |
2100 | ||
2101 | vty = vty_new (); | |
2102 | vty->fd = sock; | |
c5e69a02 | 2103 | vty->wfd = sock; |
718e3744 | 2104 | vty->type = VTY_SHELL_SERV; |
2105 | vty->node = VIEW_NODE; | |
2106 | ||
2107 | vty_event (VTYSH_READ, sock, vty); | |
2108 | ||
2109 | return 0; | |
2110 | } | |
2111 | ||
9fc7ebf1 | 2112 | static int |
2113 | vtysh_flush(struct vty *vty) | |
2114 | { | |
c5e69a02 | 2115 | switch (buffer_flush_available(vty->obuf, vty->wfd)) |
9fc7ebf1 | 2116 | { |
2117 | case BUFFER_PENDING: | |
c5e69a02 | 2118 | vty_event(VTYSH_WRITE, vty->wfd, vty); |
9fc7ebf1 | 2119 | break; |
2120 | case BUFFER_ERROR: | |
74542d73 | 2121 | vty->monitor = 0; /* disable monitoring to avoid infinite recursion */ |
9fc7ebf1 | 2122 | zlog_warn("%s: write error to fd %d, closing", __func__, vty->fd); |
2123 | buffer_reset(vty->obuf); | |
2124 | vty_close(vty); | |
2125 | return -1; | |
2126 | break; | |
2127 | case BUFFER_EMPTY: | |
2128 | break; | |
2129 | } | |
2130 | return 0; | |
2131 | } | |
2132 | ||
718e3744 | 2133 | static int |
2134 | vtysh_read (struct thread *thread) | |
2135 | { | |
2136 | int ret; | |
2137 | int sock; | |
2138 | int nbytes; | |
2139 | struct vty *vty; | |
2140 | unsigned char buf[VTY_READ_BUFSIZ]; | |
9fc7ebf1 | 2141 | unsigned char *p; |
718e3744 | 2142 | u_char header[4] = {0, 0, 0, 0}; |
2143 | ||
2144 | sock = THREAD_FD (thread); | |
2145 | vty = THREAD_ARG (thread); | |
2146 | vty->t_read = NULL; | |
2147 | ||
9fc7ebf1 | 2148 | if ((nbytes = read (sock, buf, VTY_READ_BUFSIZ)) <= 0) |
718e3744 | 2149 | { |
9fc7ebf1 | 2150 | if (nbytes < 0) |
d0bfb22c QY |
2151 | { |
2152 | if (ERRNO_IO_RETRY(errno)) | |
2153 | { | |
2154 | vty_event (VTYSH_READ, sock, vty); | |
2155 | return 0; | |
2156 | } | |
2157 | vty->monitor = 0; /* disable monitoring to avoid infinite recursion */ | |
2158 | zlog_warn("%s: read failed on vtysh client fd %d, closing: %s", | |
2159 | __func__, sock, safe_strerror(errno)); | |
2160 | } | |
9fc7ebf1 | 2161 | buffer_reset(vty->obuf); |
718e3744 | 2162 | vty_close (vty); |
2163 | #ifdef VTYSH_DEBUG | |
2164 | printf ("close vtysh\n"); | |
2165 | #endif /* VTYSH_DEBUG */ | |
2166 | return 0; | |
2167 | } | |
2168 | ||
2169 | #ifdef VTYSH_DEBUG | |
9fc7ebf1 | 2170 | printf ("line: %.*s\n", nbytes, buf); |
718e3744 | 2171 | #endif /* VTYSH_DEBUG */ |
2172 | ||
d1e4a518 | 2173 | if (vty->length + nbytes >= VTY_BUFSIZ) |
2af38873 QY |
2174 | { |
2175 | /* Clear command line buffer. */ | |
2176 | vty->cp = vty->length = 0; | |
2177 | vty_clear_buf (vty); | |
2178 | vty_out (vty, "%% Command is too long.%s", VTY_NEWLINE); | |
2179 | } | |
2180 | else | |
9fc7ebf1 | 2181 | { |
2af38873 | 2182 | for (p = buf; p < buf+nbytes; p++) |
d0bfb22c | 2183 | { |
2af38873 QY |
2184 | vty->buf[vty->length++] = *p; |
2185 | if (*p == '\0') | |
2186 | { | |
2187 | /* Pass this line to parser. */ | |
2188 | ret = vty_execute (vty); | |
2189 | /* Note that vty_execute clears the command buffer and resets | |
2190 | vty->length to 0. */ | |
718e3744 | 2191 | |
2af38873 | 2192 | /* Return result. */ |
718e3744 | 2193 | #ifdef VTYSH_DEBUG |
2af38873 QY |
2194 | printf ("result: %d\n", ret); |
2195 | printf ("vtysh node: %d\n", vty->node); | |
718e3744 | 2196 | #endif /* VTYSH_DEBUG */ |
2197 | ||
2af38873 QY |
2198 | /* hack for asynchronous "write integrated" |
2199 | * - other commands in "buf" will be ditched | |
2200 | * - input during pending config-write is "unsupported" */ | |
2201 | if (ret == CMD_SUSPEND) | |
2202 | break; | |
95c4aff2 | 2203 | |
2af38873 QY |
2204 | /* warning: watchquagga hardcodes this result write */ |
2205 | header[3] = ret; | |
2206 | buffer_put(vty->obuf, header, 4); | |
9fc7ebf1 | 2207 | |
2af38873 QY |
2208 | if (!vty->t_write && (vtysh_flush(vty) < 0)) |
2209 | /* Try to flush results; exit if a write error occurs. */ | |
2210 | return 0; | |
2211 | } | |
d0bfb22c | 2212 | } |
9fc7ebf1 | 2213 | } |
718e3744 | 2214 | |
2215 | vty_event (VTYSH_READ, sock, vty); | |
2216 | ||
2217 | return 0; | |
2218 | } | |
49ff6d9d | 2219 | |
2220 | static int | |
2221 | vtysh_write (struct thread *thread) | |
2222 | { | |
2223 | struct vty *vty = THREAD_ARG (thread); | |
2224 | ||
2225 | vty->t_write = NULL; | |
9fc7ebf1 | 2226 | vtysh_flush(vty); |
976d8c73 | 2227 | return 0; |
49ff6d9d | 2228 | } |
2229 | ||
718e3744 | 2230 | #endif /* VTYSH */ |
2231 | ||
2232 | /* Determine address family to bind. */ | |
2233 | void | |
6ad96ea1 | 2234 | vty_serv_sock (const char *addr, unsigned short port, const char *path) |
718e3744 | 2235 | { |
2236 | /* If port is set to 0, do not listen on TCP/IP at all! */ | |
2237 | if (port) | |
56c1f7d8 | 2238 | vty_serv_sock_addrinfo (addr, port); |
718e3744 | 2239 | |
2240 | #ifdef VTYSH | |
2241 | vty_serv_un (path); | |
2242 | #endif /* VTYSH */ | |
2243 | } | |
2244 | ||
9d0a3260 AS |
2245 | /* Close vty interface. Warning: call this only from functions that |
2246 | will be careful not to access the vty afterwards (since it has | |
2247 | now been freed). This is safest from top-level functions (called | |
2248 | directly by the thread dispatcher). */ | |
718e3744 | 2249 | void |
2250 | vty_close (struct vty *vty) | |
2251 | { | |
2252 | int i; | |
3d217741 | 2253 | bool was_stdio = false; |
718e3744 | 2254 | |
2255 | /* Cancel threads.*/ | |
2256 | if (vty->t_read) | |
2257 | thread_cancel (vty->t_read); | |
2258 | if (vty->t_write) | |
2259 | thread_cancel (vty->t_write); | |
2260 | if (vty->t_timeout) | |
2261 | thread_cancel (vty->t_timeout); | |
718e3744 | 2262 | |
2263 | /* Flush buffer. */ | |
c5e69a02 | 2264 | buffer_flush_all (vty->obuf, vty->wfd); |
718e3744 | 2265 | |
2266 | /* Free input buffer. */ | |
2267 | buffer_free (vty->obuf); | |
2268 | ||
718e3744 | 2269 | /* Free command history. */ |
2270 | for (i = 0; i < VTY_MAXHIST; i++) | |
2271 | if (vty->hist[i]) | |
2272 | XFREE (MTYPE_VTY_HIST, vty->hist[i]); | |
2273 | ||
2274 | /* Unset vector. */ | |
2275 | vector_unset (vtyvec, vty->fd); | |
2276 | ||
056cfe49 DL |
2277 | if (vty->wfd > 0 && vty->type == VTY_FILE) |
2278 | fsync (vty->wfd); | |
2279 | ||
718e3744 | 2280 | /* Close socket. */ |
2281 | if (vty->fd > 0) | |
056cfe49 DL |
2282 | { |
2283 | close (vty->fd); | |
2284 | if (vty->wfd > 0 && vty->wfd != vty->fd) | |
2285 | close (vty->wfd); | |
2286 | } | |
b510a06e | 2287 | else |
dd03f8ca | 2288 | was_stdio = true; |
718e3744 | 2289 | |
718e3744 | 2290 | if (vty->buf) |
2291 | XFREE (MTYPE_VTY, vty->buf); | |
2292 | ||
5689fe5f DW |
2293 | if (vty->error_buf) |
2294 | XFREE (MTYPE_VTY, vty->error_buf); | |
2295 | ||
718e3744 | 2296 | /* Check configure. */ |
2297 | vty_config_unlock (vty); | |
2298 | ||
2299 | /* OK free vty. */ | |
2300 | XFREE (MTYPE_VTY, vty); | |
dd03f8ca DL |
2301 | |
2302 | if (was_stdio) | |
2303 | vty_stdio_reset (); | |
718e3744 | 2304 | } |
2305 | ||
2306 | /* When time out occur output message then close connection. */ | |
2307 | static int | |
2308 | vty_timeout (struct thread *thread) | |
2309 | { | |
2310 | struct vty *vty; | |
2311 | ||
2312 | vty = THREAD_ARG (thread); | |
2313 | vty->t_timeout = NULL; | |
2314 | vty->v_timeout = 0; | |
2315 | ||
2316 | /* Clear buffer*/ | |
2317 | buffer_reset (vty->obuf); | |
2318 | vty_out (vty, "%sVty connection is timed out.%s", VTY_NEWLINE, VTY_NEWLINE); | |
2319 | ||
2320 | /* Close connection. */ | |
2321 | vty->status = VTY_CLOSE; | |
2322 | vty_close (vty); | |
2323 | ||
2324 | return 0; | |
2325 | } | |
2326 | ||
2327 | /* Read up configuration file from file_name. */ | |
2328 | static void | |
2329 | vty_read_file (FILE *confp) | |
2330 | { | |
2331 | int ret; | |
2332 | struct vty *vty; | |
13fbc82d | 2333 | unsigned int line_num = 0; |
718e3744 | 2334 | |
2335 | vty = vty_new (); | |
c5e69a02 DL |
2336 | vty->wfd = dup(STDERR_FILENO); /* vty_close() will close this */ |
2337 | if (vty->wfd < 0) | |
13fbc82d SH |
2338 | { |
2339 | /* Fine, we couldn't make a new fd. vty_close doesn't close stdout. */ | |
c5e69a02 | 2340 | vty->wfd = STDOUT_FILENO; |
13fbc82d | 2341 | } |
c5e69a02 | 2342 | vty->fd = STDIN_FILENO; |
13fbc82d | 2343 | vty->type = VTY_FILE; |
718e3744 | 2344 | vty->node = CONFIG_NODE; |
d0bfb22c | 2345 | |
718e3744 | 2346 | /* Execute configuration file */ |
13fbc82d SH |
2347 | ret = config_from_file (vty, confp, &line_num); |
2348 | ||
2349 | /* Flush any previous errors before printing messages below */ | |
2350 | buffer_flush_all (vty->obuf, vty->fd); | |
718e3744 | 2351 | |
d0bfb22c | 2352 | if ( !((ret == CMD_SUCCESS) || (ret == CMD_ERR_NOTHING_TODO)) ) |
718e3744 | 2353 | { |
cbd7259d | 2354 | const char *message = NULL; |
718e3744 | 2355 | switch (ret) |
7021c425 | 2356 | { |
2357 | case CMD_ERR_AMBIGUOUS: | |
cbd7259d | 2358 | message = "*** Error reading config: Ambiguous command."; |
7021c425 | 2359 | break; |
2360 | case CMD_ERR_NO_MATCH: | |
cbd7259d | 2361 | message = "*** Error reading config: There is no such command."; |
7021c425 | 2362 | break; |
2363 | } | |
cbd7259d QY |
2364 | fprintf (stderr, "%s\n", message); |
2365 | zlog_err ("%s", message); | |
2366 | fprintf (stderr, "*** Error occurred processing line %u, below:\n%s\n", | |
d0bfb22c | 2367 | line_num, vty->error_buf); |
cbd7259d QY |
2368 | zlog_err ("*** Error occurred processing line %u, below:\n%s", |
2369 | line_num, vty->error_buf); | |
718e3744 | 2370 | } |
2371 | ||
2372 | vty_close (vty); | |
2373 | } | |
2374 | ||
9fc7ebf1 | 2375 | static FILE * |
eb05883f | 2376 | vty_use_backup_config (const char *fullpath) |
718e3744 | 2377 | { |
2378 | char *fullpath_sav, *fullpath_tmp; | |
2379 | FILE *ret = NULL; | |
718e3744 | 2380 | int tmp, sav; |
2381 | int c; | |
2382 | char buffer[512]; | |
d0bfb22c | 2383 | |
718e3744 | 2384 | fullpath_sav = malloc (strlen (fullpath) + strlen (CONF_BACKUP_EXT) + 1); |
2385 | strcpy (fullpath_sav, fullpath); | |
2386 | strcat (fullpath_sav, CONF_BACKUP_EXT); | |
6de46906 DL |
2387 | |
2388 | sav = open (fullpath_sav, O_RDONLY); | |
2389 | if (sav < 0) | |
718e3744 | 2390 | { |
2391 | free (fullpath_sav); | |
2392 | return NULL; | |
2393 | } | |
2394 | ||
2395 | fullpath_tmp = malloc (strlen (fullpath) + 8); | |
2396 | sprintf (fullpath_tmp, "%s.XXXXXX", fullpath); | |
d0bfb22c | 2397 | |
718e3744 | 2398 | /* Open file to configuration write. */ |
2399 | tmp = mkstemp (fullpath_tmp); | |
2400 | if (tmp < 0) | |
6de46906 | 2401 | goto out_close_sav; |
718e3744 | 2402 | |
6de46906 DL |
2403 | if (fchmod (tmp, CONFIGFILE_MASK) != 0) |
2404 | goto out_close; | |
d0bfb22c | 2405 | |
718e3744 | 2406 | while((c = read (sav, buffer, 512)) > 0) |
77f24551 DS |
2407 | { |
2408 | if (write (tmp, buffer, c) <= 0) | |
6de46906 | 2409 | goto out_close; |
77f24551 | 2410 | } |
718e3744 | 2411 | close (sav); |
2412 | close (tmp); | |
d0bfb22c | 2413 | |
6de46906 DL |
2414 | if (rename (fullpath_tmp, fullpath) == 0) |
2415 | ret = fopen (fullpath, "r"); | |
2416 | else | |
2417 | unlink (fullpath_tmp); | |
2418 | ||
2419 | if (0) | |
aa593d5e | 2420 | { |
6de46906 DL |
2421 | out_close: |
2422 | close (tmp); | |
3dbf9969 | 2423 | unlink (fullpath_tmp); |
6de46906 DL |
2424 | out_close_sav: |
2425 | close (sav); | |
aa593d5e | 2426 | } |
d0bfb22c | 2427 | |
718e3744 | 2428 | free (fullpath_sav); |
2429 | free (fullpath_tmp); | |
12f6ea23 | 2430 | return ret; |
718e3744 | 2431 | } |
2432 | ||
2433 | /* Read up configuration file from file_name. */ | |
2434 | void | |
eb05883f | 2435 | vty_read_config (const char *config_file, |
320ec10a | 2436 | char *config_default_dir) |
718e3744 | 2437 | { |
ccc9235e | 2438 | char cwd[MAXPATHLEN]; |
718e3744 | 2439 | FILE *confp = NULL; |
eb05883f | 2440 | const char *fullpath; |
05865c90 | 2441 | char *tmp = NULL; |
718e3744 | 2442 | |
2443 | /* If -f flag specified. */ | |
2444 | if (config_file != NULL) | |
2445 | { | |
2446 | if (! IS_DIRECTORY_SEP (config_file[0])) | |
320ec10a | 2447 | { |
77f24551 | 2448 | if (getcwd (cwd, MAXPATHLEN) == NULL) |
d0bfb22c QY |
2449 | { |
2450 | fprintf (stderr, "Failure to determine Current Working Directory %d!\n", errno); | |
2451 | exit (1); | |
2452 | } | |
2453 | tmp = XMALLOC (MTYPE_TMP, | |
2454 | strlen (cwd) + strlen (config_file) + 2); | |
05865c90 | 2455 | sprintf (tmp, "%s/%s", cwd, config_file); |
2456 | fullpath = tmp; | |
320ec10a | 2457 | } |
718e3744 | 2458 | else |
320ec10a | 2459 | fullpath = config_file; |
718e3744 | 2460 | |
2461 | confp = fopen (fullpath, "r"); | |
2462 | ||
2463 | if (confp == NULL) | |
320ec10a | 2464 | { |
3d1dc857 | 2465 | fprintf (stderr, "%s: failed to open configuration file %s: %s\n", |
2466 | __func__, fullpath, safe_strerror (errno)); | |
d0bfb22c | 2467 | |
320ec10a | 2468 | confp = vty_use_backup_config (fullpath); |
2469 | if (confp) | |
2470 | fprintf (stderr, "WARNING: using backup configuration file!\n"); | |
2471 | else | |
2472 | { | |
d0bfb22c QY |
2473 | fprintf (stderr, "can't open configuration file [%s]\n", |
2474 | config_file); | |
320ec10a | 2475 | exit(1); |
2476 | } | |
2477 | } | |
718e3744 | 2478 | } |
2479 | else | |
2480 | { | |
a7222276 | 2481 | |
e4421165 | 2482 | host_config_set (config_default_dir); |
a7222276 | 2483 | |
718e3744 | 2484 | #ifdef VTYSH |
320ec10a | 2485 | int ret; |
2486 | struct stat conf_stat; | |
2487 | ||
2488 | /* !!!!PLEASE LEAVE!!!! | |
2489 | * This is NEEDED for use with vtysh -b, or else you can get | |
2490 | * a real configuration food fight with a lot garbage in the | |
2491 | * merged configuration file it creates coming from the per | |
2492 | * daemon configuration files. This also allows the daemons | |
2493 | * to start if there default configuration file is not | |
2494 | * present or ignore them, as needed when using vtysh -b to | |
2495 | * configure the daemons at boot - MAG | |
2496 | */ | |
2497 | ||
2498 | /* Stat for vtysh Zebra.conf, if found startup and wait for | |
2499 | * boot configuration | |
2500 | */ | |
2501 | ||
2502 | if ( strstr(config_default_dir, "vtysh") == NULL) | |
2503 | { | |
2504 | ret = stat (integrate_default, &conf_stat); | |
2505 | if (ret >= 0) | |
d0bfb22c | 2506 | goto tmp_free_and_out; |
320ec10a | 2507 | } |
a7222276 | 2508 | #endif /* VTYSH */ |
e4421165 DS |
2509 | confp = fopen (config_default_dir, "r"); |
2510 | if (confp == NULL) | |
2511 | { | |
2512 | fprintf (stderr, "%s: failed to open configuration file %s: %s\n", | |
2513 | __func__, config_default_dir, safe_strerror (errno)); | |
d0bfb22c | 2514 | |
e4421165 DS |
2515 | confp = vty_use_backup_config (config_default_dir); |
2516 | if (confp) | |
2517 | { | |
2518 | fprintf (stderr, "WARNING: using backup configuration file!\n"); | |
2519 | fullpath = config_default_dir; | |
2520 | } | |
2521 | else | |
2522 | { | |
2523 | fprintf (stderr, "can't open configuration file [%s]\n", | |
d0bfb22c QY |
2524 | config_default_dir); |
2525 | goto tmp_free_and_out; | |
e4421165 | 2526 | } |
d0bfb22c | 2527 | } |
e4421165 DS |
2528 | else |
2529 | fullpath = config_default_dir; | |
2530 | } | |
2531 | ||
718e3744 | 2532 | vty_read_file (confp); |
2533 | ||
2534 | fclose (confp); | |
2535 | ||
2536 | host_config_set (fullpath); | |
6eda6425 DS |
2537 | |
2538 | tmp_free_and_out: | |
05865c90 | 2539 | if (tmp) |
eb05883f | 2540 | XFREE (MTYPE_TMP, tmp); |
718e3744 | 2541 | } |
2542 | ||
2543 | /* Small utility function which output log to the VTY. */ | |
2544 | void | |
274a4a44 | 2545 | vty_log (const char *level, const char *proto_str, |
d0bfb22c | 2546 | const char *format, struct timestamp_control *ctl, va_list va) |
718e3744 | 2547 | { |
8c328f11 | 2548 | unsigned int i; |
718e3744 | 2549 | struct vty *vty; |
d0bfb22c | 2550 | |
a4b30303 PJ |
2551 | if (!vtyvec) |
2552 | return; | |
718e3744 | 2553 | |
55468c86 | 2554 | for (i = 0; i < vector_active (vtyvec); i++) |
718e3744 | 2555 | if ((vty = vector_slot (vtyvec, i)) != NULL) |
2556 | if (vty->monitor) | |
d0bfb22c QY |
2557 | { |
2558 | va_list ac; | |
2559 | va_copy(ac, va); | |
2560 | vty_log_out (vty, level, proto_str, format, ctl, ac); | |
2561 | va_end(ac); | |
2562 | } | |
718e3744 | 2563 | } |
2564 | ||
274a4a44 | 2565 | /* Async-signal-safe version of vty_log for fixed strings. */ |
2566 | void | |
24873f0c | 2567 | vty_log_fixed (char *buf, size_t len) |
274a4a44 | 2568 | { |
2569 | unsigned int i; | |
9fc7ebf1 | 2570 | struct iovec iov[2]; |
24873f0c | 2571 | char crlf[4] = "\r\n"; |
9fc7ebf1 | 2572 | |
a4b30303 PJ |
2573 | /* vty may not have been initialised */ |
2574 | if (!vtyvec) | |
2575 | return; | |
d0bfb22c | 2576 | |
1f9a9fff | 2577 | iov[0].iov_base = buf; |
9fc7ebf1 | 2578 | iov[0].iov_len = len; |
24873f0c | 2579 | iov[1].iov_base = crlf; |
9fc7ebf1 | 2580 | iov[1].iov_len = 2; |
274a4a44 | 2581 | |
55468c86 | 2582 | for (i = 0; i < vector_active (vtyvec); i++) |
274a4a44 | 2583 | { |
2584 | struct vty *vty; | |
9fc7ebf1 | 2585 | if (((vty = vector_slot (vtyvec, i)) != NULL) && vty->monitor) |
d0bfb22c QY |
2586 | /* N.B. We don't care about the return code, since process is |
2587 | most likely just about to die anyway. */ | |
2588 | if (writev(vty->wfd, iov, 2) == -1) | |
2589 | { | |
2590 | fprintf(stderr, "Failure to writev: %d\n", errno); | |
2591 | exit(-1); | |
2592 | } | |
274a4a44 | 2593 | } |
2594 | } | |
2595 | ||
718e3744 | 2596 | int |
2597 | vty_config_lock (struct vty *vty) | |
2598 | { | |
cc933ef9 DL |
2599 | if (vty_config_is_lockless) |
2600 | return 1; | |
718e3744 | 2601 | if (vty_config == 0) |
2602 | { | |
2603 | vty->config = 1; | |
2604 | vty_config = 1; | |
2605 | } | |
2606 | return vty->config; | |
2607 | } | |
2608 | ||
2609 | int | |
2610 | vty_config_unlock (struct vty *vty) | |
2611 | { | |
cc933ef9 DL |
2612 | if (vty_config_is_lockless) |
2613 | return 0; | |
718e3744 | 2614 | if (vty_config == 1 && vty->config == 1) |
2615 | { | |
2616 | vty->config = 0; | |
2617 | vty_config = 0; | |
2618 | } | |
2619 | return vty->config; | |
2620 | } | |
6b0655a2 | 2621 | |
cc933ef9 DL |
2622 | void |
2623 | vty_config_lockless (void) | |
2624 | { | |
2625 | vty_config_is_lockless = 1; | |
2626 | } | |
2627 | ||
718e3744 | 2628 | /* Master of the threads. */ |
79159516 | 2629 | static struct thread_master *vty_master; |
718e3744 | 2630 | |
2631 | static void | |
2632 | vty_event (enum event event, int sock, struct vty *vty) | |
2633 | { | |
d8182598 QY |
2634 | struct thread *vty_serv_thread = NULL; |
2635 | ||
718e3744 | 2636 | switch (event) |
2637 | { | |
2638 | case VTY_SERV: | |
d8182598 QY |
2639 | vty_serv_thread = thread_add_read(vty_master, vty_accept, vty, sock, NULL); |
2640 | vector_set_index (Vvty_serv_thread, sock, vty_serv_thread); | |
718e3744 | 2641 | break; |
2642 | #ifdef VTYSH | |
2643 | case VTYSH_SERV: | |
d8182598 QY |
2644 | vty_serv_thread = thread_add_read(vty_master, vtysh_accept, vty, sock, NULL); |
2645 | vector_set_index (Vvty_serv_thread, sock, vty_serv_thread); | |
718e3744 | 2646 | break; |
2647 | case VTYSH_READ: | |
66e78ae6 QY |
2648 | vty->t_read = NULL; |
2649 | thread_add_read(vty_master, vtysh_read, vty, sock, &vty->t_read); | |
49ff6d9d | 2650 | break; |
2651 | case VTYSH_WRITE: | |
66e78ae6 QY |
2652 | vty->t_write = NULL; |
2653 | thread_add_write(vty_master, vtysh_write, vty, sock, &vty->t_write); | |
718e3744 | 2654 | break; |
2655 | #endif /* VTYSH */ | |
2656 | case VTY_READ: | |
66e78ae6 QY |
2657 | vty->t_read = NULL; |
2658 | thread_add_read(vty_master, vty_read, vty, sock, &vty->t_read); | |
718e3744 | 2659 | |
2660 | /* Time out treatment. */ | |
2661 | if (vty->v_timeout) | |
d0bfb22c QY |
2662 | { |
2663 | if (vty->t_timeout) | |
2664 | thread_cancel (vty->t_timeout); | |
66e78ae6 QY |
2665 | vty->t_timeout = NULL; |
2666 | thread_add_timer(vty_master, vty_timeout, vty, vty->v_timeout, | |
2667 | &vty->t_timeout); | |
d0bfb22c | 2668 | } |
718e3744 | 2669 | break; |
2670 | case VTY_WRITE: | |
ffa2c898 | 2671 | thread_add_write(vty_master, vty_flush, vty, sock, &vty->t_write); |
718e3744 | 2672 | break; |
2673 | case VTY_TIMEOUT_RESET: | |
2674 | if (vty->t_timeout) | |
d0bfb22c QY |
2675 | { |
2676 | thread_cancel (vty->t_timeout); | |
2677 | vty->t_timeout = NULL; | |
2678 | } | |
718e3744 | 2679 | if (vty->v_timeout) |
d0bfb22c | 2680 | { |
66e78ae6 QY |
2681 | vty->t_timeout = NULL; |
2682 | thread_add_timer(vty_master, vty_timeout, vty, vty->v_timeout, | |
2683 | &vty->t_timeout); | |
d0bfb22c | 2684 | } |
718e3744 | 2685 | break; |
2686 | } | |
2687 | } | |
6b0655a2 | 2688 | |
505e5056 | 2689 | DEFUN_NOSH (config_who, |
718e3744 | 2690 | config_who_cmd, |
2691 | "who", | |
2692 | "Display who is on vty\n") | |
2693 | { | |
8c328f11 | 2694 | unsigned int i; |
718e3744 | 2695 | struct vty *v; |
2696 | ||
55468c86 | 2697 | for (i = 0; i < vector_active (vtyvec); i++) |
718e3744 | 2698 | if ((v = vector_slot (vtyvec, i)) != NULL) |
2699 | vty_out (vty, "%svty[%d] connected from %s.%s", | |
d0bfb22c QY |
2700 | v->config ? "*" : " ", |
2701 | i, v->address, VTY_NEWLINE); | |
718e3744 | 2702 | return CMD_SUCCESS; |
2703 | } | |
2704 | ||
2705 | /* Move to vty configuration mode. */ | |
505e5056 | 2706 | DEFUN_NOSH (line_vty, |
718e3744 | 2707 | line_vty_cmd, |
2708 | "line vty", | |
2709 | "Configure a terminal line\n" | |
2710 | "Virtual terminal\n") | |
2711 | { | |
2712 | vty->node = VTY_NODE; | |
2713 | return CMD_SUCCESS; | |
2714 | } | |
2715 | ||
2716 | /* Set time out value. */ | |
9fc7ebf1 | 2717 | static int |
9035efaa | 2718 | exec_timeout (struct vty *vty, const char *min_str, const char *sec_str) |
718e3744 | 2719 | { |
2720 | unsigned long timeout = 0; | |
2721 | ||
2722 | /* min_str and sec_str are already checked by parser. So it must be | |
2723 | all digit string. */ | |
2724 | if (min_str) | |
2725 | { | |
2726 | timeout = strtol (min_str, NULL, 10); | |
2727 | timeout *= 60; | |
2728 | } | |
2729 | if (sec_str) | |
2730 | timeout += strtol (sec_str, NULL, 10); | |
2731 | ||
2732 | vty_timeout_val = timeout; | |
2733 | vty->v_timeout = timeout; | |
2734 | vty_event (VTY_TIMEOUT_RESET, 0, vty); | |
2735 | ||
2736 | ||
2737 | return CMD_SUCCESS; | |
2738 | } | |
2739 | ||
2740 | DEFUN (exec_timeout_min, | |
2741 | exec_timeout_min_cmd, | |
aa1c90a4 | 2742 | "exec-timeout (0-35791)", |
718e3744 | 2743 | "Set timeout value\n" |
2744 | "Timeout value in minutes\n") | |
2745 | { | |
c349116d DW |
2746 | int idx_number = 1; |
2747 | return exec_timeout (vty, argv[idx_number]->arg, NULL); | |
718e3744 | 2748 | } |
2749 | ||
2750 | DEFUN (exec_timeout_sec, | |
2751 | exec_timeout_sec_cmd, | |
aa1c90a4 | 2752 | "exec-timeout (0-35791) (0-2147483)", |
718e3744 | 2753 | "Set the EXEC timeout\n" |
2754 | "Timeout in minutes\n" | |
2755 | "Timeout in seconds\n") | |
2756 | { | |
c349116d DW |
2757 | int idx_number = 1; |
2758 | int idx_number_2 = 2; | |
2759 | return exec_timeout (vty, argv[idx_number]->arg, argv[idx_number_2]->arg); | |
718e3744 | 2760 | } |
2761 | ||
2762 | DEFUN (no_exec_timeout, | |
2763 | no_exec_timeout_cmd, | |
2764 | "no exec-timeout", | |
2765 | NO_STR | |
2766 | "Set the EXEC timeout\n") | |
2767 | { | |
2768 | return exec_timeout (vty, NULL, NULL); | |
2769 | } | |
2770 | ||
2771 | /* Set vty access class. */ | |
2772 | DEFUN (vty_access_class, | |
2773 | vty_access_class_cmd, | |
2774 | "access-class WORD", | |
2775 | "Filter connections based on an IP access list\n" | |
2776 | "IP access list\n") | |
2777 | { | |
c349116d | 2778 | int idx_word = 1; |
718e3744 | 2779 | if (vty_accesslist_name) |
2780 | XFREE(MTYPE_VTY, vty_accesslist_name); | |
2781 | ||
c349116d | 2782 | vty_accesslist_name = XSTRDUP(MTYPE_VTY, argv[idx_word]->arg); |
718e3744 | 2783 | |
2784 | return CMD_SUCCESS; | |
2785 | } | |
2786 | ||
2787 | /* Clear vty access class. */ | |
2788 | DEFUN (no_vty_access_class, | |
2789 | no_vty_access_class_cmd, | |
2790 | "no access-class [WORD]", | |
2791 | NO_STR | |
2792 | "Filter connections based on an IP access list\n" | |
2793 | "IP access list\n") | |
2794 | { | |
c349116d DW |
2795 | int idx_word = 2; |
2796 | const char *accesslist = (argc == 3) ? argv[idx_word]->arg : NULL; | |
abddf075 | 2797 | if (! vty_accesslist_name || (argc == 3 && strcmp(vty_accesslist_name, accesslist))) |
718e3744 | 2798 | { |
2799 | vty_out (vty, "Access-class is not currently applied to vty%s", | |
d0bfb22c | 2800 | VTY_NEWLINE); |
718e3744 | 2801 | return CMD_WARNING; |
2802 | } | |
2803 | ||
2804 | XFREE(MTYPE_VTY, vty_accesslist_name); | |
2805 | ||
2806 | vty_accesslist_name = NULL; | |
2807 | ||
2808 | return CMD_SUCCESS; | |
2809 | } | |
2810 | ||
718e3744 | 2811 | /* Set vty access class. */ |
2812 | DEFUN (vty_ipv6_access_class, | |
2813 | vty_ipv6_access_class_cmd, | |
2814 | "ipv6 access-class WORD", | |
2815 | IPV6_STR | |
2816 | "Filter connections based on an IP access list\n" | |
2817 | "IPv6 access list\n") | |
2818 | { | |
c349116d | 2819 | int idx_word = 2; |
718e3744 | 2820 | if (vty_ipv6_accesslist_name) |
2821 | XFREE(MTYPE_VTY, vty_ipv6_accesslist_name); | |
2822 | ||
c349116d | 2823 | vty_ipv6_accesslist_name = XSTRDUP(MTYPE_VTY, argv[idx_word]->arg); |
718e3744 | 2824 | |
2825 | return CMD_SUCCESS; | |
2826 | } | |
2827 | ||
2828 | /* Clear vty access class. */ | |
2829 | DEFUN (no_vty_ipv6_access_class, | |
2830 | no_vty_ipv6_access_class_cmd, | |
2831 | "no ipv6 access-class [WORD]", | |
2832 | NO_STR | |
2833 | IPV6_STR | |
2834 | "Filter connections based on an IP access list\n" | |
2835 | "IPv6 access list\n") | |
2836 | { | |
c349116d DW |
2837 | int idx_word = 3; |
2838 | const char *accesslist = (argc == 4) ? argv[idx_word]->arg : NULL; | |
aa1c90a4 | 2839 | |
718e3744 | 2840 | if (! vty_ipv6_accesslist_name || |
abddf075 | 2841 | (argc == 4 && strcmp(vty_ipv6_accesslist_name, accesslist))) |
718e3744 | 2842 | { |
2843 | vty_out (vty, "IPv6 access-class is not currently applied to vty%s", | |
d0bfb22c | 2844 | VTY_NEWLINE); |
718e3744 | 2845 | return CMD_WARNING; |
2846 | } | |
2847 | ||
2848 | XFREE(MTYPE_VTY, vty_ipv6_accesslist_name); | |
2849 | ||
2850 | vty_ipv6_accesslist_name = NULL; | |
2851 | ||
2852 | return CMD_SUCCESS; | |
2853 | } | |
718e3744 | 2854 | |
2855 | /* vty login. */ | |
2856 | DEFUN (vty_login, | |
2857 | vty_login_cmd, | |
2858 | "login", | |
2859 | "Enable password checking\n") | |
2860 | { | |
2861 | no_password_check = 0; | |
2862 | return CMD_SUCCESS; | |
2863 | } | |
2864 | ||
2865 | DEFUN (no_vty_login, | |
2866 | no_vty_login_cmd, | |
2867 | "no login", | |
2868 | NO_STR | |
2869 | "Enable password checking\n") | |
2870 | { | |
2871 | no_password_check = 1; | |
2872 | return CMD_SUCCESS; | |
2873 | } | |
2874 | ||
2875 | DEFUN (service_advanced_vty, | |
2876 | service_advanced_vty_cmd, | |
2877 | "service advanced-vty", | |
2878 | "Set up miscellaneous service\n" | |
2879 | "Enable advanced mode vty interface\n") | |
2880 | { | |
2881 | host.advanced = 1; | |
2882 | return CMD_SUCCESS; | |
2883 | } | |
2884 | ||
2885 | DEFUN (no_service_advanced_vty, | |
2886 | no_service_advanced_vty_cmd, | |
2887 | "no service advanced-vty", | |
2888 | NO_STR | |
2889 | "Set up miscellaneous service\n" | |
2890 | "Enable advanced mode vty interface\n") | |
2891 | { | |
2892 | host.advanced = 0; | |
2893 | return CMD_SUCCESS; | |
2894 | } | |
2895 | ||
505e5056 | 2896 | DEFUN_NOSH (terminal_monitor, |
718e3744 | 2897 | terminal_monitor_cmd, |
2898 | "terminal monitor", | |
2899 | "Set terminal line parameters\n" | |
2900 | "Copy debug output to the current terminal line\n") | |
2901 | { | |
2902 | vty->monitor = 1; | |
2903 | return CMD_SUCCESS; | |
2904 | } | |
2905 | ||
505e5056 | 2906 | DEFUN_NOSH (terminal_no_monitor, |
718e3744 | 2907 | terminal_no_monitor_cmd, |
2908 | "terminal no monitor", | |
2909 | "Set terminal line parameters\n" | |
2910 | NO_STR | |
2911 | "Copy debug output to the current terminal line\n") | |
2912 | { | |
2913 | vty->monitor = 0; | |
2914 | return CMD_SUCCESS; | |
2915 | } | |
2916 | ||
505e5056 | 2917 | DEFUN_NOSH (no_terminal_monitor, |
789f78ac | 2918 | no_terminal_monitor_cmd, |
2919 | "no terminal monitor", | |
2920 | NO_STR | |
2921 | "Set terminal line parameters\n" | |
2922 | "Copy debug output to the current terminal line\n") | |
f667a580 QY |
2923 | { |
2924 | return terminal_no_monitor (self, vty, argc, argv); | |
2925 | } | |
2926 | ||
789f78ac | 2927 | |
505e5056 | 2928 | DEFUN_NOSH (show_history, |
718e3744 | 2929 | show_history_cmd, |
2930 | "show history", | |
2931 | SHOW_STR | |
2932 | "Display the session command history\n") | |
2933 | { | |
2934 | int index; | |
2935 | ||
2936 | for (index = vty->hindex + 1; index != vty->hindex;) | |
2937 | { | |
2938 | if (index == VTY_MAXHIST) | |
d0bfb22c QY |
2939 | { |
2940 | index = 0; | |
2941 | continue; | |
2942 | } | |
718e3744 | 2943 | |
2944 | if (vty->hist[index] != NULL) | |
d0bfb22c | 2945 | vty_out (vty, " %s%s", vty->hist[index], VTY_NEWLINE); |
718e3744 | 2946 | |
2947 | index++; | |
2948 | } | |
2949 | ||
2950 | return CMD_SUCCESS; | |
2951 | } | |
2952 | ||
da688ecd LB |
2953 | /* vty login. */ |
2954 | DEFUN (log_commands, | |
2955 | log_commands_cmd, | |
2956 | "log commands", | |
2957 | "Logging control\n" | |
2958 | "Log all commands (can't be unset without restart)\n") | |
2959 | { | |
2960 | do_log_commands = 1; | |
2961 | return CMD_SUCCESS; | |
2962 | } | |
2963 | ||
718e3744 | 2964 | /* Display current configuration. */ |
9fc7ebf1 | 2965 | static int |
718e3744 | 2966 | vty_config_write (struct vty *vty) |
2967 | { | |
2968 | vty_out (vty, "line vty%s", VTY_NEWLINE); | |
2969 | ||
2970 | if (vty_accesslist_name) | |
2971 | vty_out (vty, " access-class %s%s", | |
d0bfb22c | 2972 | vty_accesslist_name, VTY_NEWLINE); |
718e3744 | 2973 | |
2974 | if (vty_ipv6_accesslist_name) | |
2975 | vty_out (vty, " ipv6 access-class %s%s", | |
d0bfb22c | 2976 | vty_ipv6_accesslist_name, VTY_NEWLINE); |
718e3744 | 2977 | |
2978 | /* exec-timeout */ | |
2979 | if (vty_timeout_val != VTY_TIMEOUT_DEFAULT) | |
d0bfb22c QY |
2980 | vty_out (vty, " exec-timeout %ld %ld%s", |
2981 | vty_timeout_val / 60, | |
2982 | vty_timeout_val % 60, VTY_NEWLINE); | |
718e3744 | 2983 | |
2984 | /* login */ | |
2985 | if (no_password_check) | |
2986 | vty_out (vty, " no login%s", VTY_NEWLINE); | |
da688ecd LB |
2987 | |
2988 | if (do_log_commands) | |
2989 | vty_out (vty, "log commands%s", VTY_NEWLINE); | |
d0bfb22c | 2990 | |
718e3744 | 2991 | vty_out (vty, "!%s", VTY_NEWLINE); |
2992 | ||
2993 | return CMD_SUCCESS; | |
2994 | } | |
2995 | ||
2996 | struct cmd_node vty_node = | |
2997 | { | |
2998 | VTY_NODE, | |
2999 | "%s(config-line)# ", | |
e7168df4 | 3000 | 1, |
718e3744 | 3001 | }; |
3002 | ||
3003 | /* Reset all VTY status. */ | |
3004 | void | |
3005 | vty_reset () | |
3006 | { | |
8c328f11 | 3007 | unsigned int i; |
718e3744 | 3008 | struct vty *vty; |
3009 | struct thread *vty_serv_thread; | |
3010 | ||
55468c86 | 3011 | for (i = 0; i < vector_active (vtyvec); i++) |
718e3744 | 3012 | if ((vty = vector_slot (vtyvec, i)) != NULL) |
3013 | { | |
d0bfb22c QY |
3014 | buffer_reset (vty->obuf); |
3015 | vty->status = VTY_CLOSE; | |
3016 | vty_close (vty); | |
718e3744 | 3017 | } |
3018 | ||
55468c86 | 3019 | for (i = 0; i < vector_active (Vvty_serv_thread); i++) |
718e3744 | 3020 | if ((vty_serv_thread = vector_slot (Vvty_serv_thread, i)) != NULL) |
3021 | { | |
d0bfb22c QY |
3022 | thread_cancel (vty_serv_thread); |
3023 | vector_slot (Vvty_serv_thread, i) = NULL; | |
718e3744 | 3024 | close (i); |
3025 | } | |
3026 | ||
3027 | vty_timeout_val = VTY_TIMEOUT_DEFAULT; | |
3028 | ||
3029 | if (vty_accesslist_name) | |
3030 | { | |
3031 | XFREE(MTYPE_VTY, vty_accesslist_name); | |
3032 | vty_accesslist_name = NULL; | |
3033 | } | |
3034 | ||
3035 | if (vty_ipv6_accesslist_name) | |
3036 | { | |
3037 | XFREE(MTYPE_VTY, vty_ipv6_accesslist_name); | |
3038 | vty_ipv6_accesslist_name = NULL; | |
3039 | } | |
3040 | } | |
3041 | ||
9fc7ebf1 | 3042 | static void |
3043 | vty_save_cwd (void) | |
718e3744 | 3044 | { |
79ad2798 | 3045 | char cwd[MAXPATHLEN]; |
ccc9235e | 3046 | char *c; |
79ad2798 | 3047 | |
ccc9235e | 3048 | c = getcwd (cwd, MAXPATHLEN); |
718e3744 | 3049 | |
ccc9235e | 3050 | if (!c) |
79ad2798 | 3051 | { |
77f24551 DS |
3052 | /* |
3053 | * At this point if these go wrong, more than likely | |
3054 | * the whole world is coming down around us | |
3055 | * Hence not worrying about it too much. | |
3056 | */ | |
3057 | if (!chdir (SYSCONFDIR)) | |
d0bfb22c QY |
3058 | { |
3059 | fprintf(stderr, "Failure to chdir to %s, errno: %d\n", SYSCONFDIR, errno); | |
3060 | exit(-1); | |
3061 | } | |
77f24551 | 3062 | if (getcwd (cwd, MAXPATHLEN) == NULL) |
d0bfb22c QY |
3063 | { |
3064 | fprintf(stderr, "Failure to getcwd, errno: %d\n", errno); | |
3065 | exit(-1); | |
3066 | } | |
79ad2798 | 3067 | } |
718e3744 | 3068 | |
3069 | vty_cwd = XMALLOC (MTYPE_TMP, strlen (cwd) + 1); | |
3070 | strcpy (vty_cwd, cwd); | |
3071 | } | |
3072 | ||
3073 | char * | |
3074 | vty_get_cwd () | |
3075 | { | |
3076 | return vty_cwd; | |
3077 | } | |
3078 | ||
3079 | int | |
3080 | vty_shell (struct vty *vty) | |
3081 | { | |
3082 | return vty->type == VTY_SHELL ? 1 : 0; | |
3083 | } | |
3084 | ||
3085 | int | |
3086 | vty_shell_serv (struct vty *vty) | |
3087 | { | |
3088 | return vty->type == VTY_SHELL_SERV ? 1 : 0; | |
3089 | } | |
3090 | ||
3091 | void | |
3092 | vty_init_vtysh () | |
3093 | { | |
3094 | vtyvec = vector_init (VECTOR_MIN_SIZE); | |
3095 | } | |
3096 | ||
3097 | /* Install vty's own commands like `who' command. */ | |
3098 | void | |
b21b19c5 | 3099 | vty_init (struct thread_master *master_thread) |
718e3744 | 3100 | { |
3101 | /* For further configuration read, preserve current directory. */ | |
3102 | vty_save_cwd (); | |
3103 | ||
3104 | vtyvec = vector_init (VECTOR_MIN_SIZE); | |
3105 | ||
79159516 | 3106 | vty_master = master_thread; |
b21b19c5 | 3107 | |
b510a06e DL |
3108 | atexit (vty_stdio_reset); |
3109 | ||
718e3744 | 3110 | /* Initilize server thread vector. */ |
3111 | Vvty_serv_thread = vector_init (VECTOR_MIN_SIZE); | |
3112 | ||
3113 | /* Install bgp top node. */ | |
3114 | install_node (&vty_node, vty_config_write); | |
3115 | ||
3116 | install_element (VIEW_NODE, &config_who_cmd); | |
3117 | install_element (VIEW_NODE, &show_history_cmd); | |
718e3744 | 3118 | install_element (CONFIG_NODE, &line_vty_cmd); |
3119 | install_element (CONFIG_NODE, &service_advanced_vty_cmd); | |
3120 | install_element (CONFIG_NODE, &no_service_advanced_vty_cmd); | |
3121 | install_element (CONFIG_NODE, &show_history_cmd); | |
da688ecd | 3122 | install_element (CONFIG_NODE, &log_commands_cmd); |
718e3744 | 3123 | install_element (ENABLE_NODE, &terminal_monitor_cmd); |
3124 | install_element (ENABLE_NODE, &terminal_no_monitor_cmd); | |
789f78ac | 3125 | install_element (ENABLE_NODE, &no_terminal_monitor_cmd); |
718e3744 | 3126 | |
3127 | install_default (VTY_NODE); | |
3128 | install_element (VTY_NODE, &exec_timeout_min_cmd); | |
3129 | install_element (VTY_NODE, &exec_timeout_sec_cmd); | |
3130 | install_element (VTY_NODE, &no_exec_timeout_cmd); | |
3131 | install_element (VTY_NODE, &vty_access_class_cmd); | |
3132 | install_element (VTY_NODE, &no_vty_access_class_cmd); | |
3133 | install_element (VTY_NODE, &vty_login_cmd); | |
3134 | install_element (VTY_NODE, &no_vty_login_cmd); | |
718e3744 | 3135 | install_element (VTY_NODE, &vty_ipv6_access_class_cmd); |
3136 | install_element (VTY_NODE, &no_vty_ipv6_access_class_cmd); | |
718e3744 | 3137 | } |
228da428 CC |
3138 | |
3139 | void | |
3140 | vty_terminate (void) | |
3141 | { | |
3142 | if (vty_cwd) | |
3143 | XFREE (MTYPE_TMP, vty_cwd); | |
3144 | ||
3145 | if (vtyvec && Vvty_serv_thread) | |
3146 | { | |
3147 | vty_reset (); | |
3148 | vector_free (vtyvec); | |
3149 | vector_free (Vvty_serv_thread); | |
6253a46a LB |
3150 | vtyvec = NULL; |
3151 | Vvty_serv_thread = NULL; | |
228da428 CC |
3152 | } |
3153 | } | |
eac6e3f0 RW |
3154 | |
3155 | /* Utility functions to get arguments from commands generated | |
3156 | by the xml2cli.pl script. */ | |
3157 | const char * | |
3158 | vty_get_arg_value (struct vty_arg *args[], const char *arg) | |
3159 | { | |
3160 | while (*args) | |
3161 | { | |
3162 | if (strcmp ((*args)->name, arg) == 0) | |
3163 | return (*args)->value; | |
3164 | args++; | |
3165 | } | |
3166 | return NULL; | |
3167 | } | |
3168 | ||
3169 | struct vty_arg * | |
3170 | vty_get_arg (struct vty_arg *args[], const char *arg) | |
3171 | { | |
3172 | while (*args) | |
3173 | { | |
3174 | if (strcmp ((*args)->name, arg) == 0) | |
3175 | return *args; | |
3176 | args++; | |
3177 | } | |
3178 | return NULL; | |
3179 | } |