2 * Virtual terminal [aka TeletYpe] interface routine.
3 * Copyright (C) 1997, 98 Kunihiro Ishiguro
5 * This file is part of GNU Zebra.
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
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.
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
24 #include <lib/version.h>
25 #include <sys/types.h>
33 #include "sockunion.h"
44 #include <arpa/telnet.h>
47 DEFINE_MTYPE_STATIC(LIB
, VTY
, "VTY")
48 DEFINE_MTYPE_STATIC(LIB
, VTY_OUT_BUF
, "VTY output buffer")
49 DEFINE_MTYPE_STATIC(LIB
, VTY_HIST
, "VTY history")
64 static void vty_event(enum event
, int, struct vty
*);
66 /* Extern host structure from command.c */
67 extern struct host host
;
69 /* Vector which store each vty structure. */
72 /* Vty timeout value. */
73 static unsigned long vty_timeout_val
= VTY_TIMEOUT_DEFAULT
;
75 /* Vty access-class command */
76 static char *vty_accesslist_name
= NULL
;
78 /* Vty access-calss for IPv6. */
79 static char *vty_ipv6_accesslist_name
= NULL
;
81 /* VTY server thread. */
82 static vector Vvty_serv_thread
;
84 /* Current directory. */
88 static int vty_config
;
89 static int vty_config_is_lockless
= 0;
91 /* Login password check. */
92 static int no_password_check
= 0;
94 /* Integrated configuration file path */
95 char integrate_default
[] = SYSCONFDIR INTEGRATE_DEFAULT_CONFIG
;
97 static int do_log_commands
= 0;
99 void vty_frame(struct vty
*vty
, const char *format
, ...)
103 va_start(args
, format
);
104 vsnprintf(vty
->frame
+ vty
->frame_pos
,
105 sizeof(vty
->frame
) - vty
->frame_pos
, format
, args
);
106 vty
->frame_pos
= strlen(vty
->frame
);
110 void vty_endframe(struct vty
*vty
, const char *endtext
)
112 if (vty
->frame_pos
== 0 && endtext
)
113 vty_out(vty
, "%s", endtext
);
117 bool vty_set_include(struct vty
*vty
, const char *regexp
)
125 regfree(&vty
->include
);
131 errcode
= regcomp(&vty
->include
, regexp
,
132 REG_EXTENDED
| REG_NEWLINE
| REG_NOSUB
);
135 regerror(ret
, &vty
->include
, errbuf
, sizeof(errbuf
));
136 vty_out(vty
, "%% Regex compilation error: %s", errbuf
);
144 /* VTY standard output function. */
145 int vty_out(struct vty
*vty
, const char *format
, ...)
154 if (vty
->frame_pos
) {
156 vty_out(vty
, "%s", vty
->frame
);
159 /* Try to write to initial buffer. */
160 va_start(args
, format
);
161 len
= vsnprintf(buf
, sizeof(buf
), format
, args
);
164 /* Initial buffer is not enough. */
165 if (len
< 0 || len
>= size
) {
172 p
= XREALLOC(MTYPE_VTY_OUT_BUF
, p
, size
);
176 va_start(args
, format
);
177 len
= vsnprintf(p
, size
, format
, args
);
180 if (len
> -1 && len
< size
)
185 /* When initial buffer is enough to store all output. */
191 vector lines
= frrstr_split_vec(p
, "\n");
193 /* Place first value in the cache */
194 char *firstline
= vector_slot(lines
, 0);
195 buffer_put(vty
->lbuf
, (uint8_t *) firstline
, strlen(firstline
));
197 /* If our split returned more than one entry, time to filter */
198 if (vector_active(lines
) > 1) {
200 * returned string is MTYPE_TMP so it matches the MTYPE
201 * of everything else in the vector
203 char *bstr
= buffer_getstr(vty
->lbuf
);
204 buffer_reset(vty
->lbuf
);
205 XFREE(MTYPE_TMP
, lines
->index
[0]);
206 vector_set_index(lines
, 0, bstr
);
207 frrstr_filter_vec(lines
, &vty
->include
);
208 vector_compact(lines
);
210 * Consider the string "foo\n". If the regex is an empty string
211 * and the line ended with a newline, then the vector will look
217 * If the regex isn't empty, the vector will look like:
221 * In this case we'd like to preserve the newline, so we add
222 * the empty string [1] as in the first example.
224 if (p
[strlen(p
) - 1] == '\n' && vector_active(lines
) > 0
225 && strlen(vector_slot(lines
, vector_active(lines
) - 1)))
226 vector_set(lines
, XSTRDUP(MTYPE_TMP
, ""));
228 filtered
= frrstr_join_vec(lines
, "\n");
234 frrstr_strvec_free(lines
);
245 /* print with crlf replacement */
246 buffer_put_crlf(vty
->obuf
, (uint8_t *)filtered
,
250 fprintf(vty
->of
, "%s", filtered
);
256 /* print without crlf replacement */
257 buffer_put(vty
->obuf
, (uint8_t *)filtered
, strlen(filtered
));
263 if (vty
->filter
&& filtered
)
264 XFREE(MTYPE_TMP
, filtered
);
266 /* If p is not different with buf, it is allocated buffer. */
268 XFREE(MTYPE_VTY_OUT_BUF
, p
);
273 static int vty_log_out(struct vty
*vty
, const char *level
,
274 const char *proto_str
, const char *format
,
275 struct timestamp_control
*ctl
, va_list va
)
281 if (!ctl
->already_rendered
) {
282 ctl
->len
= quagga_timestamp(ctl
->precision
, ctl
->buf
,
284 ctl
->already_rendered
= 1;
286 if (ctl
->len
+ 1 >= sizeof(buf
))
288 memcpy(buf
, ctl
->buf
, len
= ctl
->len
);
293 ret
= snprintf(buf
+ len
, sizeof(buf
) - len
, "%s: %s: ", level
,
296 ret
= snprintf(buf
+ len
, sizeof(buf
) - len
, "%s: ", proto_str
);
297 if ((ret
< 0) || ((size_t)(len
+= ret
) >= sizeof(buf
)))
300 if (((ret
= vsnprintf(buf
+ len
, sizeof(buf
) - len
, format
, va
)) < 0)
301 || ((size_t)((len
+= ret
) + 2) > sizeof(buf
)))
307 if (write(vty
->wfd
, buf
, len
) < 0) {
308 if (ERRNO_IO_RETRY(errno
))
309 /* Kernel buffer is full, probably too much debugging
311 drop the data and ignore. */
313 /* Fatal I/O error. */
315 0; /* disable monitoring to avoid infinite recursion */
316 zlog_warn("%s: write failed to vty client fd %d, closing: %s",
317 __func__
, vty
->fd
, safe_strerror(errno
));
318 buffer_reset(vty
->obuf
);
319 buffer_reset(vty
->lbuf
);
320 /* cannot call vty_close, because a parent routine may still try
321 to access the vty struct */
322 vty
->status
= VTY_CLOSE
;
323 shutdown(vty
->fd
, SHUT_RDWR
);
329 /* Output current time to the vty. */
330 void vty_time_print(struct vty
*vty
, int cr
)
332 char buf
[QUAGGA_TIMESTAMP_LEN
];
334 if (quagga_timestamp(0, buf
, sizeof(buf
)) == 0) {
335 zlog_info("quagga_timestamp error");
339 vty_out(vty
, "%s\n", buf
);
341 vty_out(vty
, "%s ", buf
);
346 /* Say hello to vty interface. */
347 void vty_hello(struct vty
*vty
)
353 f
= fopen(host
.motdfile
, "r");
355 while (fgets(buf
, sizeof(buf
), f
)) {
357 /* work backwards to ignore trailling isspace()
359 for (s
= buf
+ strlen(buf
);
360 (s
> buf
) && isspace((int)*(s
- 1)); s
--)
363 vty_out(vty
, "%s\n", buf
);
367 vty_out(vty
, "MOTD file not found\n");
368 } else if (host
.motd
)
369 vty_out(vty
, "%s", host
.motd
);
372 /* Put out prompt and wait input from user. */
373 static void vty_prompt(struct vty
*vty
)
375 if (vty
->type
== VTY_TERM
) {
376 vty_out(vty
, cmd_prompt(vty
->node
), cmd_hostname_get());
380 /* Send WILL TELOPT_ECHO to remote server. */
381 static void vty_will_echo(struct vty
*vty
)
383 unsigned char cmd
[] = {IAC
, WILL
, TELOPT_ECHO
, '\0'};
384 vty_out(vty
, "%s", cmd
);
387 /* Make suppress Go-Ahead telnet option. */
388 static void vty_will_suppress_go_ahead(struct vty
*vty
)
390 unsigned char cmd
[] = {IAC
, WILL
, TELOPT_SGA
, '\0'};
391 vty_out(vty
, "%s", cmd
);
394 /* Make don't use linemode over telnet. */
395 static void vty_dont_linemode(struct vty
*vty
)
397 unsigned char cmd
[] = {IAC
, DONT
, TELOPT_LINEMODE
, '\0'};
398 vty_out(vty
, "%s", cmd
);
401 /* Use window size. */
402 static void vty_do_window_size(struct vty
*vty
)
404 unsigned char cmd
[] = {IAC
, DO
, TELOPT_NAWS
, '\0'};
405 vty_out(vty
, "%s", cmd
);
408 #if 0 /* Currently not used. */
409 /* Make don't use lflow vty interface. */
411 vty_dont_lflow_ahead (struct vty
*vty
)
413 unsigned char cmd
[] = { IAC
, DONT
, TELOPT_LFLOW
, '\0' };
414 vty_out (vty
, "%s", cmd
);
418 /* Authentication of vty */
419 static void vty_auth(struct vty
*vty
, char *buf
)
422 enum node_type next_node
= 0;
424 char *crypt(const char *, const char *);
429 passwd
= host
.password_encrypt
;
431 passwd
= host
.password
;
433 next_node
= host
.enable
? VIEW_NODE
: ENABLE_NODE
;
435 next_node
= VIEW_NODE
;
437 case AUTH_ENABLE_NODE
:
439 passwd
= host
.enable_encrypt
;
441 passwd
= host
.enable
;
442 next_node
= ENABLE_NODE
;
448 fail
= strcmp(crypt(buf
, passwd
), passwd
);
450 fail
= strcmp(buf
, passwd
);
456 vty
->node
= next_node
; /* Success ! */
459 if (vty
->fail
>= 3) {
460 if (vty
->node
== AUTH_NODE
) {
462 "%% Bad passwords, too many failures!\n");
463 vty
->status
= VTY_CLOSE
;
465 /* AUTH_ENABLE_NODE */
468 "%% Bad enable passwords, too many failures!\n");
469 vty
->status
= VTY_CLOSE
;
475 /* Command execution over the vty interface. */
476 static int vty_command(struct vty
*vty
, char *buf
)
479 const char *protocolname
;
485 * Log non empty command lines
490 /* Skip white spaces. */
491 while (isspace((int)*cp
) && *cp
!= '\0')
494 if (cp
!= NULL
&& *cp
!= '\0') {
496 char vty_str
[VTY_BUFSIZ
];
497 char prompt_str
[VTY_BUFSIZ
];
499 /* format the base vty info */
500 snprintf(vty_str
, sizeof(vty_str
), "vty[??]@%s", vty
->address
);
502 for (i
= 0; i
< vector_active(vtyvec
); i
++)
503 if (vty
== vector_slot(vtyvec
, i
)) {
504 snprintf(vty_str
, sizeof(vty_str
), "vty[%d]@%s",
509 /* format the prompt */
510 snprintf(prompt_str
, sizeof(prompt_str
), cmd_prompt(vty
->node
),
513 /* now log the command */
514 zlog_err("%s%s", prompt_str
, buf
);
517 #ifdef CONSUMED_TIME_CHECK
521 unsigned long realtime
, cputime
;
524 #endif /* CONSUMED_TIME_CHECK */
526 ret
= cmd_execute(vty
, buf
, NULL
, 0);
528 /* Get the name of the protocol if any */
529 protocolname
= frr_protoname
;
531 #ifdef CONSUMED_TIME_CHECK
533 if ((realtime
= thread_consumed_time(&after
, &before
, &cputime
))
534 > CONSUMED_TIME_CHECK
)
535 /* Warn about CPU hog that must be fixed. */
537 "SLOW COMMAND: command took %lums (cpu time %lums): %s",
538 realtime
/ 1000, cputime
/ 1000, buf
);
540 #endif /* CONSUMED_TIME_CHECK */
542 if (ret
!= CMD_SUCCESS
)
545 if (vty
->type
== VTY_FILE
)
546 vty_out(vty
, "Warning...\n");
548 case CMD_ERR_AMBIGUOUS
:
549 vty_out(vty
, "%% Ambiguous command.\n");
551 case CMD_ERR_NO_MATCH
:
552 vty_out(vty
, "%% [%s] Unknown command: %s\n",
555 case CMD_ERR_INCOMPLETE
:
556 vty_out(vty
, "%% Command incomplete.\n");
563 static const char telnet_backward_char
= 0x08;
564 static const char telnet_space_char
= ' ';
566 /* Basic function to write buffer to vty. */
567 static void vty_write(struct vty
*vty
, const char *buf
, size_t nbytes
)
569 if ((vty
->node
== AUTH_NODE
) || (vty
->node
== AUTH_ENABLE_NODE
))
572 /* Should we do buffering here ? And make vty_flush (vty) ? */
573 buffer_put(vty
->obuf
, buf
, nbytes
);
576 /* Basic function to insert character into vty. */
577 static void vty_self_insert(struct vty
*vty
, char c
)
582 if (vty
->length
+ 1 >= VTY_BUFSIZ
)
585 length
= vty
->length
- vty
->cp
;
586 memmove(&vty
->buf
[vty
->cp
+ 1], &vty
->buf
[vty
->cp
], length
);
587 vty
->buf
[vty
->cp
] = c
;
589 vty_write(vty
, &vty
->buf
[vty
->cp
], length
+ 1);
590 for (i
= 0; i
< length
; i
++)
591 vty_write(vty
, &telnet_backward_char
, 1);
596 vty
->buf
[vty
->length
] = '\0';
599 /* Self insert character 'c' in overwrite mode. */
600 static void vty_self_insert_overwrite(struct vty
*vty
, char c
)
602 if (vty
->cp
== vty
->length
) {
603 vty_self_insert(vty
, c
);
607 vty
->buf
[vty
->cp
++] = c
;
608 vty_write(vty
, &c
, 1);
612 * Insert a string into vty->buf at the current cursor position.
614 * If the resultant string would be larger than VTY_BUFSIZ it is
617 static void vty_insert_word_overwrite(struct vty
*vty
, char *str
)
619 if (vty
->cp
== VTY_BUFSIZ
)
622 size_t nwrite
= MIN((int)strlen(str
), VTY_BUFSIZ
- vty
->cp
- 1);
623 memcpy(&vty
->buf
[vty
->cp
], str
, nwrite
);
625 vty
->length
= MAX(vty
->cp
, vty
->length
);
626 vty
->buf
[vty
->length
] = '\0';
627 vty_write(vty
, str
, nwrite
);
630 /* Forward character. */
631 static void vty_forward_char(struct vty
*vty
)
633 if (vty
->cp
< vty
->length
) {
634 vty_write(vty
, &vty
->buf
[vty
->cp
], 1);
639 /* Backward character. */
640 static void vty_backward_char(struct vty
*vty
)
644 vty_write(vty
, &telnet_backward_char
, 1);
648 /* Move to the beginning of the line. */
649 static void vty_beginning_of_line(struct vty
*vty
)
652 vty_backward_char(vty
);
655 /* Move to the end of the line. */
656 static void vty_end_of_line(struct vty
*vty
)
658 while (vty
->cp
< vty
->length
)
659 vty_forward_char(vty
);
662 static void vty_kill_line_from_beginning(struct vty
*);
663 static void vty_redraw_line(struct vty
*);
665 /* Print command line history. This function is called from
666 vty_next_line and vty_previous_line. */
667 static void vty_history_print(struct vty
*vty
)
671 vty_kill_line_from_beginning(vty
);
673 /* Get previous line from history buffer */
674 length
= strlen(vty
->hist
[vty
->hp
]);
675 memcpy(vty
->buf
, vty
->hist
[vty
->hp
], length
);
676 vty
->cp
= vty
->length
= length
;
677 vty
->buf
[vty
->length
] = '\0';
679 /* Redraw current line */
680 vty_redraw_line(vty
);
683 /* Show next command line history. */
684 static void vty_next_line(struct vty
*vty
)
688 if (vty
->hp
== vty
->hindex
)
691 /* Try is there history exist or not. */
693 if (try_index
== (VTY_MAXHIST
- 1))
698 /* If there is not history return. */
699 if (vty
->hist
[try_index
] == NULL
)
704 vty_history_print(vty
);
707 /* Show previous command line history. */
708 static void vty_previous_line(struct vty
*vty
)
714 try_index
= VTY_MAXHIST
- 1;
718 if (vty
->hist
[try_index
] == NULL
)
723 vty_history_print(vty
);
726 /* This function redraw all of the command line character. */
727 static void vty_redraw_line(struct vty
*vty
)
729 vty_write(vty
, vty
->buf
, vty
->length
);
730 vty
->cp
= vty
->length
;
734 static void vty_forward_word(struct vty
*vty
)
736 while (vty
->cp
!= vty
->length
&& vty
->buf
[vty
->cp
] != ' ')
737 vty_forward_char(vty
);
739 while (vty
->cp
!= vty
->length
&& vty
->buf
[vty
->cp
] == ' ')
740 vty_forward_char(vty
);
743 /* Backward word without skipping training space. */
744 static void vty_backward_pure_word(struct vty
*vty
)
746 while (vty
->cp
> 0 && vty
->buf
[vty
->cp
- 1] != ' ')
747 vty_backward_char(vty
);
751 static void vty_backward_word(struct vty
*vty
)
753 while (vty
->cp
> 0 && vty
->buf
[vty
->cp
- 1] == ' ')
754 vty_backward_char(vty
);
756 while (vty
->cp
> 0 && vty
->buf
[vty
->cp
- 1] != ' ')
757 vty_backward_char(vty
);
760 /* When '^D' is typed at the beginning of the line we move to the down
762 static void vty_down_level(struct vty
*vty
)
770 /* When '^Z' is received from vty, move down to the enable mode. */
771 static void vty_end_config(struct vty
*vty
)
790 case BGP_VRF_POLICY_NODE
:
791 case BGP_VNC_DEFAULTS_NODE
:
792 case BGP_VNC_NVE_GROUP_NODE
:
793 case BGP_VNC_L2_GROUP_NODE
:
808 case LDP_IPV4_IFACE_NODE
:
809 case LDP_IPV6_IFACE_NODE
:
811 case LDP_PSEUDOWIRE_NODE
:
814 case KEYCHAIN_KEY_NODE
:
816 case BGP_EVPN_VNI_NODE
:
819 vty_config_unlock(vty
);
820 vty
->node
= ENABLE_NODE
;
823 /* Unknown node, we have to ignore it. */
831 /* Delete a charcter at the current point. */
832 static void vty_delete_char(struct vty
*vty
)
837 if (vty
->length
== 0) {
842 if (vty
->cp
== vty
->length
)
843 return; /* completion need here? */
845 size
= vty
->length
- vty
->cp
;
848 memmove(&vty
->buf
[vty
->cp
], &vty
->buf
[vty
->cp
+ 1], size
- 1);
849 vty
->buf
[vty
->length
] = '\0';
851 if (vty
->node
== AUTH_NODE
|| vty
->node
== AUTH_ENABLE_NODE
)
854 vty_write(vty
, &vty
->buf
[vty
->cp
], size
- 1);
855 vty_write(vty
, &telnet_space_char
, 1);
857 for (i
= 0; i
< size
; i
++)
858 vty_write(vty
, &telnet_backward_char
, 1);
861 /* Delete a character before the point. */
862 static void vty_delete_backward_char(struct vty
*vty
)
867 vty_backward_char(vty
);
868 vty_delete_char(vty
);
871 /* Kill rest of line from current point. */
872 static void vty_kill_line(struct vty
*vty
)
877 size
= vty
->length
- vty
->cp
;
882 for (i
= 0; i
< size
; i
++)
883 vty_write(vty
, &telnet_space_char
, 1);
884 for (i
= 0; i
< size
; i
++)
885 vty_write(vty
, &telnet_backward_char
, 1);
887 memset(&vty
->buf
[vty
->cp
], 0, size
);
888 vty
->length
= vty
->cp
;
891 /* Kill line from the beginning. */
892 static void vty_kill_line_from_beginning(struct vty
*vty
)
894 vty_beginning_of_line(vty
);
898 /* Delete a word before the point. */
899 static void vty_forward_kill_word(struct vty
*vty
)
901 while (vty
->cp
!= vty
->length
&& vty
->buf
[vty
->cp
] == ' ')
902 vty_delete_char(vty
);
903 while (vty
->cp
!= vty
->length
&& vty
->buf
[vty
->cp
] != ' ')
904 vty_delete_char(vty
);
907 /* Delete a word before the point. */
908 static void vty_backward_kill_word(struct vty
*vty
)
910 while (vty
->cp
> 0 && vty
->buf
[vty
->cp
- 1] == ' ')
911 vty_delete_backward_char(vty
);
912 while (vty
->cp
> 0 && vty
->buf
[vty
->cp
- 1] != ' ')
913 vty_delete_backward_char(vty
);
916 /* Transpose chars before or at the point. */
917 static void vty_transpose_chars(struct vty
*vty
)
921 /* If length is short or point is near by the beginning of line then
923 if (vty
->length
< 2 || vty
->cp
< 1)
926 /* In case of point is located at the end of the line. */
927 if (vty
->cp
== vty
->length
) {
928 c1
= vty
->buf
[vty
->cp
- 1];
929 c2
= vty
->buf
[vty
->cp
- 2];
931 vty_backward_char(vty
);
932 vty_backward_char(vty
);
933 vty_self_insert_overwrite(vty
, c1
);
934 vty_self_insert_overwrite(vty
, c2
);
936 c1
= vty
->buf
[vty
->cp
];
937 c2
= vty
->buf
[vty
->cp
- 1];
939 vty_backward_char(vty
);
940 vty_self_insert_overwrite(vty
, c1
);
941 vty_self_insert_overwrite(vty
, c2
);
945 /* Do completion at vty interface. */
946 static void vty_complete_command(struct vty
*vty
)
950 char **matched
= NULL
;
953 if (vty
->node
== AUTH_NODE
|| vty
->node
== AUTH_ENABLE_NODE
)
956 vline
= cmd_make_strvec(vty
->buf
);
960 /* In case of 'help \t'. */
961 if (isspace((int)vty
->buf
[vty
->length
- 1]))
962 vector_set(vline
, NULL
);
964 matched
= cmd_complete_command(vline
, vty
, &ret
);
966 cmd_free_strvec(vline
);
970 case CMD_ERR_AMBIGUOUS
:
971 vty_out(vty
, "%% Ambiguous command.\n");
973 vty_redraw_line(vty
);
975 case CMD_ERR_NO_MATCH
:
976 /* vty_out (vty, "%% There is no matched command.\n"); */
978 vty_redraw_line(vty
);
980 case CMD_COMPLETE_FULL_MATCH
:
982 /* 2016-11-28 equinox -- need to debug, SEGV here */
983 vty_out(vty
, "%% CLI BUG: FULL_MATCH with NULL str\n");
985 vty_redraw_line(vty
);
989 vty_redraw_line(vty
);
990 vty_backward_pure_word(vty
);
991 vty_insert_word_overwrite(vty
, matched
[0]);
992 vty_self_insert(vty
, ' ');
993 XFREE(MTYPE_COMPLETION
, matched
[0]);
995 case CMD_COMPLETE_MATCH
:
997 vty_redraw_line(vty
);
998 vty_backward_pure_word(vty
);
999 vty_insert_word_overwrite(vty
, matched
[0]);
1000 XFREE(MTYPE_COMPLETION
, matched
[0]);
1002 case CMD_COMPLETE_LIST_MATCH
:
1003 for (i
= 0; matched
[i
] != NULL
; i
++) {
1004 if (i
!= 0 && ((i
% 6) == 0))
1006 vty_out(vty
, "%-10s ", matched
[i
]);
1007 XFREE(MTYPE_COMPLETION
, matched
[i
]);
1012 vty_redraw_line(vty
);
1014 case CMD_ERR_NOTHING_TODO
:
1016 vty_redraw_line(vty
);
1022 XFREE(MTYPE_TMP
, matched
);
1025 static void vty_describe_fold(struct vty
*vty
, int cmd_width
,
1026 unsigned int desc_width
, struct cmd_token
*token
)
1029 const char *cmd
, *p
;
1034 if (desc_width
<= 0) {
1035 vty_out(vty
, " %-*s %s\n", cmd_width
, cmd
, token
->desc
);
1039 buf
= XCALLOC(MTYPE_TMP
, strlen(token
->desc
) + 1);
1041 for (p
= token
->desc
; strlen(p
) > desc_width
; p
+= pos
+ 1) {
1042 for (pos
= desc_width
; pos
> 0; pos
--)
1043 if (*(p
+ pos
) == ' ')
1049 strncpy(buf
, p
, pos
);
1051 vty_out(vty
, " %-*s %s\n", cmd_width
, cmd
, buf
);
1056 vty_out(vty
, " %-*s %s\n", cmd_width
, cmd
, p
);
1058 XFREE(MTYPE_TMP
, buf
);
1061 /* Describe matched command function. */
1062 static void vty_describe_command(struct vty
*vty
)
1067 unsigned int i
, width
, desc_width
;
1068 struct cmd_token
*token
, *token_cr
= NULL
;
1070 vline
= cmd_make_strvec(vty
->buf
);
1072 /* In case of '> ?'. */
1073 if (vline
== NULL
) {
1074 vline
= vector_init(1);
1075 vector_set(vline
, NULL
);
1076 } else if (isspace((int)vty
->buf
[vty
->length
- 1]))
1077 vector_set(vline
, NULL
);
1079 describe
= cmd_describe_command(vline
, vty
, &ret
);
1083 /* Ambiguous error. */
1085 case CMD_ERR_AMBIGUOUS
:
1086 vty_out(vty
, "%% Ambiguous command.\n");
1089 case CMD_ERR_NO_MATCH
:
1090 vty_out(vty
, "%% There is no matched command.\n");
1095 /* Get width of command string. */
1097 for (i
= 0; i
< vector_active(describe
); i
++)
1098 if ((token
= vector_slot(describe
, i
)) != NULL
) {
1101 if (token
->text
[0] == '\0')
1104 len
= strlen(token
->text
);
1110 /* Get width of description string. */
1111 desc_width
= vty
->width
- (width
+ 6);
1113 /* Print out description. */
1114 for (i
= 0; i
< vector_active(describe
); i
++)
1115 if ((token
= vector_slot(describe
, i
)) != NULL
) {
1116 if (token
->text
[0] == '\0')
1119 if (strcmp(token
->text
, CMD_CR_TEXT
) == 0) {
1125 vty_out(vty
, " %-s\n", token
->text
);
1126 else if (desc_width
>= strlen(token
->desc
))
1127 vty_out(vty
, " %-*s %s\n", width
, token
->text
,
1130 vty_describe_fold(vty
, width
, desc_width
,
1133 if (IS_VARYING_TOKEN(token
->type
)) {
1134 const char *ref
= vector_slot(
1135 vline
, vector_active(vline
) - 1);
1137 vector varcomps
= vector_init(VECTOR_MIN_SIZE
);
1138 cmd_variable_complete(token
, ref
, varcomps
);
1140 if (vector_active(varcomps
) > 0) {
1141 char *ac
= cmd_variable_comp2str(
1142 varcomps
, vty
->width
);
1143 vty_out(vty
, "%s\n", ac
);
1144 XFREE(MTYPE_TMP
, ac
);
1147 vector_free(varcomps
);
1150 vty_out (vty
, " %-*s %s\n", width
1151 desc
->cmd
[0] == '.' ? desc
->cmd
+ 1 : desc
->cmd
,
1152 desc
->str
? desc
->str
: "");
1156 if ((token
= token_cr
)) {
1158 vty_out(vty
, " %-s\n", token
->text
);
1159 else if (desc_width
>= strlen(token
->desc
))
1160 vty_out(vty
, " %-*s %s\n", width
, token
->text
,
1163 vty_describe_fold(vty
, width
, desc_width
, token
);
1167 cmd_free_strvec(vline
);
1169 vector_free(describe
);
1172 vty_redraw_line(vty
);
1175 static void vty_clear_buf(struct vty
*vty
)
1177 memset(vty
->buf
, 0, vty
->max
);
1180 /* ^C stop current input and do not add command line to the history. */
1181 static void vty_stop_input(struct vty
*vty
)
1183 vty
->cp
= vty
->length
= 0;
1187 switch (vty
->node
) {
1190 /* Nothing to do. */
1193 case INTERFACE_NODE
:
1207 case LDP_IPV4_IFACE_NODE
:
1208 case LDP_IPV6_IFACE_NODE
:
1209 case LDP_L2VPN_NODE
:
1210 case LDP_PSEUDOWIRE_NODE
:
1213 case KEYCHAIN_KEY_NODE
:
1217 vty_config_unlock(vty
);
1218 vty
->node
= ENABLE_NODE
;
1221 /* Unknown node, we have to ignore it. */
1226 /* Set history pointer to the latest one. */
1227 vty
->hp
= vty
->hindex
;
1230 /* Add current command line to the history buffer. */
1231 static void vty_hist_add(struct vty
*vty
)
1235 if (vty
->length
== 0)
1238 index
= vty
->hindex
? vty
->hindex
- 1 : VTY_MAXHIST
- 1;
1240 /* Ignore the same string as previous one. */
1241 if (vty
->hist
[index
])
1242 if (strcmp(vty
->buf
, vty
->hist
[index
]) == 0) {
1243 vty
->hp
= vty
->hindex
;
1247 /* Insert history entry. */
1248 if (vty
->hist
[vty
->hindex
])
1249 XFREE(MTYPE_VTY_HIST
, vty
->hist
[vty
->hindex
]);
1250 vty
->hist
[vty
->hindex
] = XSTRDUP(MTYPE_VTY_HIST
, vty
->buf
);
1252 /* History index rotation. */
1254 if (vty
->hindex
== VTY_MAXHIST
)
1257 vty
->hp
= vty
->hindex
;
1260 /* #define TELNET_OPTION_DEBUG */
1262 /* Get telnet window size. */
1263 static int vty_telnet_option(struct vty
*vty
, unsigned char *buf
, int nbytes
)
1265 #ifdef TELNET_OPTION_DEBUG
1268 for (i
= 0; i
< nbytes
; i
++) {
1271 vty_out(vty
, "IAC ");
1274 vty_out(vty
, "WILL ");
1277 vty_out(vty
, "WONT ");
1280 vty_out(vty
, "DO ");
1283 vty_out(vty
, "DONT ");
1286 vty_out(vty
, "SB ");
1289 vty_out(vty
, "SE ");
1292 vty_out(vty
, "TELOPT_ECHO \n");
1295 vty_out(vty
, "TELOPT_SGA \n");
1298 vty_out(vty
, "TELOPT_NAWS \n");
1301 vty_out(vty
, "%x ", buf
[i
]);
1307 #endif /* TELNET_OPTION_DEBUG */
1312 vty
->iac_sb_in_progress
= 1;
1316 if (!vty
->iac_sb_in_progress
)
1319 if ((vty
->sb_len
== 0) || (vty
->sb_buf
[0] == '\0')) {
1320 vty
->iac_sb_in_progress
= 0;
1323 switch (vty
->sb_buf
[0]) {
1325 if (vty
->sb_len
!= TELNET_NAWS_SB_LEN
)
1327 "RFC 1073 violation detected: telnet NAWS option "
1328 "should send %d characters, but we received %lu",
1330 (unsigned long)vty
->sb_len
);
1331 else if (sizeof(vty
->sb_buf
) < TELNET_NAWS_SB_LEN
)
1333 "Bug detected: sizeof(vty->sb_buf) %lu < %d, "
1334 "too small to handle the telnet NAWS option",
1335 (unsigned long)sizeof(vty
->sb_buf
),
1336 TELNET_NAWS_SB_LEN
);
1338 vty
->width
= ((vty
->sb_buf
[1] << 8)
1340 vty
->height
= ((vty
->sb_buf
[3] << 8)
1342 #ifdef TELNET_OPTION_DEBUG
1344 "TELNET NAWS window size negotiation completed: "
1345 "width %d, height %d\n",
1346 vty
->width
, vty
->height
);
1351 vty
->iac_sb_in_progress
= 0;
1361 /* Execute current command line. */
1362 static int vty_execute(struct vty
*vty
)
1368 switch (vty
->node
) {
1370 case AUTH_ENABLE_NODE
:
1371 vty_auth(vty
, vty
->buf
);
1374 ret
= vty_command(vty
, vty
->buf
);
1375 if (vty
->type
== VTY_TERM
)
1380 /* Clear command line buffer. */
1381 vty
->cp
= vty
->length
= 0;
1384 if (vty
->status
!= VTY_CLOSE
)
1390 #define CONTROL(X) ((X) - '@')
1391 #define VTY_NORMAL 0
1392 #define VTY_PRE_ESCAPE 1
1393 #define VTY_ESCAPE 2
1395 /* Escape character command map. */
1396 static void vty_escape_map(unsigned char c
, struct vty
*vty
)
1400 vty_previous_line(vty
);
1406 vty_forward_char(vty
);
1409 vty_backward_char(vty
);
1415 /* Go back to normal mode. */
1416 vty
->escape
= VTY_NORMAL
;
1419 /* Quit print out to the buffer. */
1420 static void vty_buffer_reset(struct vty
*vty
)
1422 buffer_reset(vty
->obuf
);
1423 buffer_reset(vty
->lbuf
);
1425 vty_redraw_line(vty
);
1428 /* Read data via vty socket. */
1429 static int vty_read(struct thread
*thread
)
1433 unsigned char buf
[VTY_READ_BUFSIZ
];
1435 int vty_sock
= THREAD_FD(thread
);
1436 struct vty
*vty
= THREAD_ARG(thread
);
1439 /* Read raw data from socket */
1440 if ((nbytes
= read(vty
->fd
, buf
, VTY_READ_BUFSIZ
)) <= 0) {
1442 if (ERRNO_IO_RETRY(errno
)) {
1443 vty_event(VTY_READ
, vty_sock
, vty
);
1446 vty
->monitor
= 0; /* disable monitoring to avoid
1447 infinite recursion */
1449 "%s: read error on vty client fd %d, closing: %s",
1450 __func__
, vty
->fd
, safe_strerror(errno
));
1451 buffer_reset(vty
->obuf
);
1452 buffer_reset(vty
->lbuf
);
1454 vty
->status
= VTY_CLOSE
;
1457 for (i
= 0; i
< nbytes
; i
++) {
1458 if (buf
[i
] == IAC
) {
1467 if (vty
->iac_sb_in_progress
&& !vty
->iac
) {
1468 if (vty
->sb_len
< sizeof(vty
->sb_buf
))
1469 vty
->sb_buf
[vty
->sb_len
] = buf
[i
];
1475 /* In case of telnet command */
1477 ret
= vty_telnet_option(vty
, buf
+ i
, nbytes
- i
);
1484 if (vty
->status
== VTY_MORE
) {
1489 vty_buffer_reset(vty
);
1491 #if 0 /* More line does not work for "show ip bgp". */
1494 vty
->status
= VTY_MORELINE
;
1503 /* Escape character. */
1504 if (vty
->escape
== VTY_ESCAPE
) {
1505 vty_escape_map(buf
[i
], vty
);
1509 /* Pre-escape status. */
1510 if (vty
->escape
== VTY_PRE_ESCAPE
) {
1513 vty
->escape
= VTY_ESCAPE
;
1516 vty_backward_word(vty
);
1517 vty
->escape
= VTY_NORMAL
;
1520 vty_forward_word(vty
);
1521 vty
->escape
= VTY_NORMAL
;
1524 vty_forward_kill_word(vty
);
1525 vty
->escape
= VTY_NORMAL
;
1529 vty_backward_kill_word(vty
);
1530 vty
->escape
= VTY_NORMAL
;
1533 vty
->escape
= VTY_NORMAL
;
1541 vty_beginning_of_line(vty
);
1544 vty_backward_char(vty
);
1547 vty_stop_input(vty
);
1550 vty_delete_char(vty
);
1553 vty_end_of_line(vty
);
1556 vty_forward_char(vty
);
1560 vty_delete_backward_char(vty
);
1569 vty_previous_line(vty
);
1572 vty_transpose_chars(vty
);
1575 vty_kill_line_from_beginning(vty
);
1578 vty_backward_kill_word(vty
);
1581 vty_end_config(vty
);
1589 vty_complete_command(vty
);
1592 if (vty
->node
== AUTH_NODE
1593 || vty
->node
== AUTH_ENABLE_NODE
)
1594 vty_self_insert(vty
, buf
[i
]);
1596 vty_describe_command(vty
);
1599 if (i
+ 1 < nbytes
&& buf
[i
+ 1] == '[') {
1600 vty
->escape
= VTY_ESCAPE
;
1603 vty
->escape
= VTY_PRE_ESCAPE
;
1606 if (buf
[i
] > 31 && buf
[i
] < 127)
1607 vty_self_insert(vty
, buf
[i
]);
1613 if (vty
->status
== VTY_CLOSE
)
1616 vty_event(VTY_WRITE
, vty
->wfd
, vty
);
1617 vty_event(VTY_READ
, vty_sock
, vty
);
1622 /* Flush buffer to the vty. */
1623 static int vty_flush(struct thread
*thread
)
1626 buffer_status_t flushrc
;
1627 int vty_sock
= THREAD_FD(thread
);
1628 struct vty
*vty
= THREAD_ARG(thread
);
1630 vty
->t_write
= NULL
;
1632 /* Tempolary disable read thread. */
1633 if ((vty
->lines
== 0) && vty
->t_read
) {
1634 thread_cancel(vty
->t_read
);
1638 /* Function execution continue. */
1639 erase
= ((vty
->status
== VTY_MORE
|| vty
->status
== VTY_MORELINE
));
1641 /* N.B. if width is 0, that means we don't know the window size. */
1642 if ((vty
->lines
== 0) || (vty
->width
== 0) || (vty
->height
== 0))
1643 flushrc
= buffer_flush_available(vty
->obuf
, vty_sock
);
1644 else if (vty
->status
== VTY_MORELINE
)
1645 flushrc
= buffer_flush_window(vty
->obuf
, vty_sock
, vty
->width
,
1648 flushrc
= buffer_flush_window(
1649 vty
->obuf
, vty_sock
, vty
->width
,
1650 vty
->lines
>= 0 ? vty
->lines
: vty
->height
, erase
, 0);
1654 0; /* disable monitoring to avoid infinite recursion */
1655 zlog_warn("buffer_flush failed on vty client fd %d, closing",
1657 buffer_reset(vty
->lbuf
);
1658 buffer_reset(vty
->obuf
);
1662 if (vty
->status
== VTY_CLOSE
)
1665 vty
->status
= VTY_NORMAL
;
1666 if (vty
->lines
== 0)
1667 vty_event(VTY_READ
, vty_sock
, vty
);
1670 case BUFFER_PENDING
:
1671 /* There is more data waiting to be written. */
1672 vty
->status
= VTY_MORE
;
1673 if (vty
->lines
== 0)
1674 vty_event(VTY_WRITE
, vty_sock
, vty
);
1681 /* Allocate new vty struct. */
1682 struct vty
*vty_new()
1684 struct vty
*new = XCALLOC(MTYPE_VTY
, sizeof(struct vty
));
1686 new->fd
= new->wfd
= -1;
1688 new->lbuf
= buffer_new(0);
1689 new->obuf
= buffer_new(0); /* Use default buffer size. */
1690 new->buf
= XCALLOC(MTYPE_VTY
, VTY_BUFSIZ
);
1691 new->error_buf
= XCALLOC(MTYPE_VTY
, VTY_BUFSIZ
);
1692 new->max
= VTY_BUFSIZ
;
1698 /* allocate and initialise vty */
1699 static struct vty
*vty_new_init(int vty_sock
)
1705 vty
->wfd
= vty_sock
;
1706 vty
->type
= VTY_TERM
;
1707 vty
->node
= AUTH_NODE
;
1712 memset(vty
->hist
, 0, sizeof(vty
->hist
));
1715 vector_set_index(vtyvec
, vty_sock
, vty
);
1716 vty
->status
= VTY_NORMAL
;
1719 vty
->iac_sb_in_progress
= 0;
1725 /* Create new vty structure. */
1726 static struct vty
*vty_create(int vty_sock
, union sockunion
*su
)
1728 char buf
[SU_ADDRSTRLEN
];
1731 sockunion2str(su
, buf
, SU_ADDRSTRLEN
);
1733 /* Allocate new vty structure and set up default values. */
1734 vty
= vty_new_init(vty_sock
);
1736 /* configurable parameters not part of basic init */
1737 vty
->v_timeout
= vty_timeout_val
;
1738 strcpy(vty
->address
, buf
);
1739 if (no_password_check
) {
1741 vty
->node
= ENABLE_NODE
;
1743 vty
->node
= VIEW_NODE
;
1745 if (host
.lines
>= 0)
1746 vty
->lines
= host
.lines
;
1748 if (!no_password_check
) {
1749 /* Vty is not available if password isn't set. */
1750 if (host
.password
== NULL
&& host
.password_encrypt
== NULL
) {
1751 vty_out(vty
, "Vty password is not set.\n");
1752 vty
->status
= VTY_CLOSE
;
1758 /* Say hello to the world. */
1760 if (!no_password_check
)
1761 vty_out(vty
, "\nUser Access Verification\n\n");
1763 /* Setting up terminal. */
1765 vty_will_suppress_go_ahead(vty
);
1767 vty_dont_linemode(vty
);
1768 vty_do_window_size(vty
);
1769 /* vty_dont_lflow_ahead (vty); */
1773 /* Add read/write thread. */
1774 vty_event(VTY_WRITE
, vty_sock
, vty
);
1775 vty_event(VTY_READ
, vty_sock
, vty
);
1780 /* create vty for stdio */
1781 static struct termios stdio_orig_termios
;
1782 static struct vty
*stdio_vty
= NULL
;
1783 static bool stdio_termios
= false;
1784 static void (*stdio_vty_atclose
)(int isexit
);
1786 static void vty_stdio_reset(int isexit
)
1790 tcsetattr(0, TCSANOW
, &stdio_orig_termios
);
1791 stdio_termios
= false;
1795 if (stdio_vty_atclose
)
1796 stdio_vty_atclose(isexit
);
1797 stdio_vty_atclose
= NULL
;
1801 static void vty_stdio_atexit(void)
1806 void vty_stdio_suspend(void)
1811 if (stdio_vty
->t_write
)
1812 thread_cancel(stdio_vty
->t_write
);
1813 if (stdio_vty
->t_read
)
1814 thread_cancel(stdio_vty
->t_read
);
1815 if (stdio_vty
->t_timeout
)
1816 thread_cancel(stdio_vty
->t_timeout
);
1819 tcsetattr(0, TCSANOW
, &stdio_orig_termios
);
1820 stdio_termios
= false;
1823 void vty_stdio_resume(void)
1828 if (!tcgetattr(0, &stdio_orig_termios
)) {
1829 struct termios termios
;
1831 termios
= stdio_orig_termios
;
1832 termios
.c_iflag
&= ~(IGNBRK
| BRKINT
| PARMRK
| ISTRIP
| INLCR
1833 | IGNCR
| ICRNL
| IXON
);
1834 termios
.c_oflag
&= ~OPOST
;
1835 termios
.c_lflag
&= ~(ECHO
| ECHONL
| ICANON
| IEXTEN
);
1836 termios
.c_cflag
&= ~(CSIZE
| PARENB
);
1837 termios
.c_cflag
|= CS8
;
1838 tcsetattr(0, TCSANOW
, &termios
);
1839 stdio_termios
= true;
1842 vty_prompt(stdio_vty
);
1844 /* Add read/write thread. */
1845 vty_event(VTY_WRITE
, 1, stdio_vty
);
1846 vty_event(VTY_READ
, 0, stdio_vty
);
1849 void vty_stdio_close(void)
1853 vty_close(stdio_vty
);
1856 struct vty
*vty_stdio(void (*atclose
)(int isexit
))
1860 /* refuse creating two vtys on stdio */
1864 vty
= stdio_vty
= vty_new_init(0);
1865 stdio_vty_atclose
= atclose
;
1868 /* always have stdio vty in a known _unchangeable_ state, don't want
1870 * to have any effect here to make sure scripting this works as intended
1872 vty
->node
= ENABLE_NODE
;
1874 strcpy(vty
->address
, "console");
1880 /* Accept connection from the network. */
1881 static int vty_accept(struct thread
*thread
)
1889 struct access_list
*acl
= NULL
;
1890 char buf
[SU_ADDRSTRLEN
];
1892 accept_sock
= THREAD_FD(thread
);
1894 /* We continue hearing vty socket. */
1895 vty_event(VTY_SERV
, accept_sock
, NULL
);
1897 memset(&su
, 0, sizeof(union sockunion
));
1899 /* We can handle IPv4 or IPv6 socket. */
1900 vty_sock
= sockunion_accept(accept_sock
, &su
);
1902 zlog_warn("can't accept vty socket : %s", safe_strerror(errno
));
1905 set_nonblocking(vty_sock
);
1906 set_cloexec(vty_sock
);
1908 sockunion2hostprefix(&su
, &p
);
1910 /* VTY's accesslist apply. */
1911 if (p
.family
== AF_INET
&& vty_accesslist_name
) {
1912 if ((acl
= access_list_lookup(AFI_IP
, vty_accesslist_name
))
1913 && (access_list_apply(acl
, &p
) == FILTER_DENY
)) {
1914 zlog_info("Vty connection refused from %s",
1915 sockunion2str(&su
, buf
, SU_ADDRSTRLEN
));
1918 /* continue accepting connections */
1919 vty_event(VTY_SERV
, accept_sock
, NULL
);
1925 /* VTY's ipv6 accesslist apply. */
1926 if (p
.family
== AF_INET6
&& vty_ipv6_accesslist_name
) {
1927 if ((acl
= access_list_lookup(AFI_IP6
,
1928 vty_ipv6_accesslist_name
))
1929 && (access_list_apply(acl
, &p
) == FILTER_DENY
)) {
1930 zlog_info("Vty connection refused from %s",
1931 sockunion2str(&su
, buf
, SU_ADDRSTRLEN
));
1934 /* continue accepting connections */
1935 vty_event(VTY_SERV
, accept_sock
, NULL
);
1942 ret
= setsockopt(vty_sock
, IPPROTO_TCP
, TCP_NODELAY
, (char *)&on
,
1945 zlog_info("can't set sockopt to vty_sock : %s",
1946 safe_strerror(errno
));
1948 zlog_info("Vty connection from %s",
1949 sockunion2str(&su
, buf
, SU_ADDRSTRLEN
));
1951 vty_create(vty_sock
, &su
);
1956 static void vty_serv_sock_addrinfo(const char *hostname
, unsigned short port
)
1959 struct addrinfo req
;
1960 struct addrinfo
*ainfo
;
1961 struct addrinfo
*ainfo_save
;
1963 char port_str
[BUFSIZ
];
1965 memset(&req
, 0, sizeof(struct addrinfo
));
1966 req
.ai_flags
= AI_PASSIVE
;
1967 req
.ai_family
= AF_UNSPEC
;
1968 req
.ai_socktype
= SOCK_STREAM
;
1969 sprintf(port_str
, "%d", port
);
1970 port_str
[sizeof(port_str
) - 1] = '\0';
1972 ret
= getaddrinfo(hostname
, port_str
, &req
, &ainfo
);
1975 zlog_err("getaddrinfo failed: %s", gai_strerror(ret
));
1982 if (ainfo
->ai_family
!= AF_INET
&& ainfo
->ai_family
!= AF_INET6
)
1985 sock
= socket(ainfo
->ai_family
, ainfo
->ai_socktype
,
1986 ainfo
->ai_protocol
);
1990 sockopt_v6only(ainfo
->ai_family
, sock
);
1991 sockopt_reuseaddr(sock
);
1992 sockopt_reuseport(sock
);
1995 ret
= bind(sock
, ainfo
->ai_addr
, ainfo
->ai_addrlen
);
1997 close(sock
); /* Avoid sd leak. */
2001 ret
= listen(sock
, 3);
2003 close(sock
); /* Avoid sd leak. */
2007 vty_event(VTY_SERV
, sock
, NULL
);
2008 } while ((ainfo
= ainfo
->ai_next
) != NULL
);
2010 freeaddrinfo(ainfo_save
);
2014 /* For sockaddr_un. */
2017 /* VTY shell UNIX domain socket. */
2018 static void vty_serv_un(const char *path
)
2022 struct sockaddr_un serv
;
2024 struct zprivs_ids_t ids
;
2026 /* First of all, unlink existing socket */
2030 old_mask
= umask(0007);
2032 /* Make UNIX domain socket. */
2033 sock
= socket(AF_UNIX
, SOCK_STREAM
, 0);
2035 zlog_err("Cannot create unix stream socket: %s",
2036 safe_strerror(errno
));
2040 /* Make server socket. */
2041 memset(&serv
, 0, sizeof(struct sockaddr_un
));
2042 serv
.sun_family
= AF_UNIX
;
2043 strlcpy(serv
.sun_path
, path
, sizeof(serv
.sun_path
));
2044 #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN
2045 len
= serv
.sun_len
= SUN_LEN(&serv
);
2047 len
= sizeof(serv
.sun_family
) + strlen(serv
.sun_path
);
2048 #endif /* HAVE_STRUCT_SOCKADDR_UN_SUN_LEN */
2052 ret
= bind(sock
, (struct sockaddr
*)&serv
, len
);
2054 zlog_err("Cannot bind path %s: %s", path
, safe_strerror(errno
));
2055 close(sock
); /* Avoid sd leak. */
2059 ret
= listen(sock
, 5);
2061 zlog_err("listen(fd %d) failed: %s", sock
,
2062 safe_strerror(errno
));
2063 close(sock
); /* Avoid sd leak. */
2069 zprivs_get_ids(&ids
);
2071 /* Hack: ids.gid_vty is actually a uint, but we stored -1 in it
2072 earlier for the case when we don't need to chown the file
2073 type casting it here to make a compare */
2074 if ((int)ids
.gid_vty
> 0) {
2075 /* set group of socket */
2076 if (chown(path
, -1, ids
.gid_vty
)) {
2077 zlog_err("vty_serv_un: could chown socket, %s",
2078 safe_strerror(errno
));
2082 vty_event(VTYSH_SERV
, sock
, NULL
);
2085 /* #define VTYSH_DEBUG 1 */
2087 static int vtysh_accept(struct thread
*thread
)
2092 struct sockaddr_un client
;
2095 accept_sock
= THREAD_FD(thread
);
2097 vty_event(VTYSH_SERV
, accept_sock
, NULL
);
2099 memset(&client
, 0, sizeof(struct sockaddr_un
));
2100 client_len
= sizeof(struct sockaddr_un
);
2102 sock
= accept(accept_sock
, (struct sockaddr
*)&client
,
2103 (socklen_t
*)&client_len
);
2106 zlog_warn("can't accept vty socket : %s", safe_strerror(errno
));
2110 if (set_nonblocking(sock
) < 0) {
2112 "vtysh_accept: could not set vty socket %d to non-blocking,"
2114 sock
, safe_strerror(errno
));
2121 printf("VTY shell accept\n");
2122 #endif /* VTYSH_DEBUG */
2127 vty
->type
= VTY_SHELL_SERV
;
2128 vty
->node
= VIEW_NODE
;
2130 vty_event(VTYSH_READ
, sock
, vty
);
2135 static int vtysh_flush(struct vty
*vty
)
2137 switch (buffer_flush_available(vty
->obuf
, vty
->wfd
)) {
2138 case BUFFER_PENDING
:
2139 vty_event(VTYSH_WRITE
, vty
->wfd
, vty
);
2143 0; /* disable monitoring to avoid infinite recursion */
2144 zlog_warn("%s: write error to fd %d, closing", __func__
,
2146 buffer_reset(vty
->lbuf
);
2147 buffer_reset(vty
->obuf
);
2157 static int vtysh_read(struct thread
*thread
)
2163 unsigned char buf
[VTY_READ_BUFSIZ
];
2165 uint8_t header
[4] = {0, 0, 0, 0};
2167 sock
= THREAD_FD(thread
);
2168 vty
= THREAD_ARG(thread
);
2171 if ((nbytes
= read(sock
, buf
, VTY_READ_BUFSIZ
)) <= 0) {
2173 if (ERRNO_IO_RETRY(errno
)) {
2174 vty_event(VTYSH_READ
, sock
, vty
);
2177 vty
->monitor
= 0; /* disable monitoring to avoid
2178 infinite recursion */
2180 "%s: read failed on vtysh client fd %d, closing: %s",
2181 __func__
, sock
, safe_strerror(errno
));
2183 buffer_reset(vty
->lbuf
);
2184 buffer_reset(vty
->obuf
);
2187 printf("close vtysh\n");
2188 #endif /* VTYSH_DEBUG */
2193 printf("line: %.*s\n", nbytes
, buf
);
2194 #endif /* VTYSH_DEBUG */
2196 if (vty
->length
+ nbytes
>= VTY_BUFSIZ
) {
2197 /* Clear command line buffer. */
2198 vty
->cp
= vty
->length
= 0;
2200 vty_out(vty
, "%% Command is too long.\n");
2202 for (p
= buf
; p
< buf
+ nbytes
; p
++) {
2203 vty
->buf
[vty
->length
++] = *p
;
2205 /* Pass this line to parser. */
2206 ret
= vty_execute(vty
);
2207 /* Note that vty_execute clears the command buffer and resets
2208 vty->length to 0. */
2210 /* Return result. */
2212 printf("result: %d\n", ret
);
2213 printf("vtysh node: %d\n", vty
->node
);
2214 #endif /* VTYSH_DEBUG */
2216 /* hack for asynchronous "write integrated"
2217 * - other commands in "buf" will be ditched
2218 * - input during pending config-write is
2220 if (ret
== CMD_SUSPEND
)
2223 /* warning: watchfrr hardcodes this result write
2226 buffer_put(vty
->obuf
, header
, 4);
2228 if (!vty
->t_write
&& (vtysh_flush(vty
) < 0))
2229 /* Try to flush results; exit if a write
2236 if (vty
->status
== VTY_CLOSE
)
2239 vty_event(VTYSH_READ
, sock
, vty
);
2244 static int vtysh_write(struct thread
*thread
)
2246 struct vty
*vty
= THREAD_ARG(thread
);
2248 vty
->t_write
= NULL
;
2255 /* Determine address family to bind. */
2256 void vty_serv_sock(const char *addr
, unsigned short port
, const char *path
)
2258 /* If port is set to 0, do not listen on TCP/IP at all! */
2260 vty_serv_sock_addrinfo(addr
, port
);
2267 /* Close vty interface. Warning: call this only from functions that
2268 will be careful not to access the vty afterwards (since it has
2269 now been freed). This is safest from top-level functions (called
2270 directly by the thread dispatcher). */
2271 void vty_close(struct vty
*vty
)
2274 bool was_stdio
= false;
2276 /* Cancel threads.*/
2278 thread_cancel(vty
->t_read
);
2280 thread_cancel(vty
->t_write
);
2282 thread_cancel(vty
->t_timeout
);
2285 buffer_flush_all(vty
->obuf
, vty
->wfd
);
2287 /* Free input buffer. */
2288 buffer_free(vty
->obuf
);
2289 buffer_free(vty
->lbuf
);
2291 /* Free command history. */
2292 for (i
= 0; i
< VTY_MAXHIST
; i
++)
2294 XFREE(MTYPE_VTY_HIST
, vty
->hist
[i
]);
2298 vector_unset(vtyvec
, vty
->fd
);
2300 if (vty
->wfd
> 0 && vty
->type
== VTY_FILE
)
2304 * note check is for fd > STDERR_FILENO, not fd != -1.
2305 * We never close stdin/stdout/stderr here, because we may be
2306 * running in foreground mode with logging to stdout. Also,
2307 * additionally, we'd need to replace these fds with /dev/null. */
2308 if (vty
->wfd
> STDERR_FILENO
&& vty
->wfd
!= vty
->fd
)
2310 if (vty
->fd
> STDERR_FILENO
) {
2316 XFREE(MTYPE_VTY
, vty
->buf
);
2319 XFREE(MTYPE_VTY
, vty
->error_buf
);
2321 /* Check configure. */
2322 vty_config_unlock(vty
);
2325 XFREE(MTYPE_VTY
, vty
);
2331 /* When time out occur output message then close connection. */
2332 static int vty_timeout(struct thread
*thread
)
2336 vty
= THREAD_ARG(thread
);
2337 vty
->t_timeout
= NULL
;
2341 buffer_reset(vty
->lbuf
);
2342 buffer_reset(vty
->obuf
);
2343 vty_out(vty
, "\nVty connection is timed out.\n");
2345 /* Close connection. */
2346 vty
->status
= VTY_CLOSE
;
2352 /* Read up configuration file from file_name. */
2353 static void vty_read_file(FILE *confp
)
2357 unsigned int line_num
= 0;
2360 /* vty_close won't close stderr; if some config command prints
2361 * something it'll end up there. (not ideal; it'd be beter if output
2362 * from a file-load went to logging instead. Also note that if this
2363 * function is called after daemonizing, stderr will be /dev/null.)
2365 * vty->fd will be -1 from vty_new()
2367 vty
->wfd
= STDERR_FILENO
;
2368 vty
->type
= VTY_FILE
;
2369 vty
->node
= CONFIG_NODE
;
2371 /* Execute configuration file */
2372 ret
= config_from_file(vty
, confp
, &line_num
);
2374 /* Flush any previous errors before printing messages below */
2375 buffer_flush_all(vty
->obuf
, vty
->wfd
);
2377 if (!((ret
== CMD_SUCCESS
) || (ret
== CMD_ERR_NOTHING_TODO
))) {
2378 const char *message
= NULL
;
2382 case CMD_ERR_AMBIGUOUS
:
2383 message
= "Ambiguous command";
2385 case CMD_ERR_NO_MATCH
:
2386 message
= "No such command";
2389 message
= "Command returned Warning";
2391 case CMD_WARNING_CONFIG_FAILED
:
2392 message
= "Command returned Warning Config Failed";
2394 case CMD_ERR_INCOMPLETE
:
2395 message
= "Command returned Incomplete";
2397 case CMD_ERR_EXEED_ARGC_MAX
:
2399 "Command exceeded maximum number of Arguments";
2402 message
= "Command returned unhandled error message";
2406 nl
= strchr(vty
->error_buf
, '\n');
2409 zlog_err("ERROR: %s on config line %u: %s", message
, line_num
,
2416 static FILE *vty_use_backup_config(const char *fullpath
)
2418 char *fullpath_sav
, *fullpath_tmp
;
2424 fullpath_sav
= malloc(strlen(fullpath
) + strlen(CONF_BACKUP_EXT
) + 1);
2425 strcpy(fullpath_sav
, fullpath
);
2426 strcat(fullpath_sav
, CONF_BACKUP_EXT
);
2428 sav
= open(fullpath_sav
, O_RDONLY
);
2434 fullpath_tmp
= malloc(strlen(fullpath
) + 8);
2435 sprintf(fullpath_tmp
, "%s.XXXXXX", fullpath
);
2437 /* Open file to configuration write. */
2438 tmp
= mkstemp(fullpath_tmp
);
2442 if (fchmod(tmp
, CONFIGFILE_MASK
) != 0)
2445 while ((c
= read(sav
, buffer
, 512)) > 0) {
2446 if (write(tmp
, buffer
, c
) <= 0)
2452 if (rename(fullpath_tmp
, fullpath
) == 0)
2453 ret
= fopen(fullpath
, "r");
2455 unlink(fullpath_tmp
);
2460 unlink(fullpath_tmp
);
2470 /* Read up configuration file from file_name. */
2471 bool vty_read_config(const char *config_file
, char *config_default_dir
)
2473 char cwd
[MAXPATHLEN
];
2475 const char *fullpath
;
2477 bool read_success
= false;
2479 /* If -f flag specified. */
2480 if (config_file
!= NULL
) {
2481 if (!IS_DIRECTORY_SEP(config_file
[0])) {
2482 if (getcwd(cwd
, MAXPATHLEN
) == NULL
) {
2484 "Failure to determine Current Working Directory %d!",
2488 tmp
= XMALLOC(MTYPE_TMP
,
2489 strlen(cwd
) + strlen(config_file
) + 2);
2490 sprintf(tmp
, "%s/%s", cwd
, config_file
);
2493 fullpath
= config_file
;
2495 confp
= fopen(fullpath
, "r");
2497 if (confp
== NULL
) {
2498 zlog_err("%s: failed to open configuration file %s: %s",
2499 __func__
, fullpath
, safe_strerror(errno
));
2501 confp
= vty_use_backup_config(fullpath
);
2504 "WARNING: using backup configuration file!");
2506 zlog_err("can't open configuration file [%s]",
2513 host_config_set(config_default_dir
);
2517 struct stat conf_stat
;
2519 /* !!!!PLEASE LEAVE!!!!
2520 * This is NEEDED for use with vtysh -b, or else you can get
2521 * a real configuration food fight with a lot garbage in the
2522 * merged configuration file it creates coming from the per
2523 * daemon configuration files. This also allows the daemons
2524 * to start if there default configuration file is not
2525 * present or ignore them, as needed when using vtysh -b to
2526 * configure the daemons at boot - MAG
2529 /* Stat for vtysh Zebra.conf, if found startup and wait for
2530 * boot configuration
2533 if (strstr(config_default_dir
, "vtysh") == NULL
) {
2534 ret
= stat(integrate_default
, &conf_stat
);
2536 read_success
= true;
2537 goto tmp_free_and_out
;
2541 confp
= fopen(config_default_dir
, "r");
2542 if (confp
== NULL
) {
2543 zlog_err("%s: failed to open configuration file %s: %s",
2544 __func__
, config_default_dir
,
2545 safe_strerror(errno
));
2547 confp
= vty_use_backup_config(config_default_dir
);
2550 "WARNING: using backup configuration file!");
2551 fullpath
= config_default_dir
;
2553 zlog_err("can't open configuration file [%s]",
2554 config_default_dir
);
2555 goto tmp_free_and_out
;
2558 fullpath
= config_default_dir
;
2561 vty_read_file(confp
);
2562 read_success
= true;
2566 host_config_set(fullpath
);
2570 XFREE(MTYPE_TMP
, tmp
);
2572 return read_success
;
2575 /* Small utility function which output log to the VTY. */
2576 void vty_log(const char *level
, const char *proto_str
, const char *format
,
2577 struct timestamp_control
*ctl
, va_list va
)
2585 for (i
= 0; i
< vector_active(vtyvec
); i
++)
2586 if ((vty
= vector_slot(vtyvec
, i
)) != NULL
)
2590 vty_log_out(vty
, level
, proto_str
, format
, ctl
,
2596 /* Async-signal-safe version of vty_log for fixed strings. */
2597 void vty_log_fixed(char *buf
, size_t len
)
2600 struct iovec iov
[2];
2601 char crlf
[4] = "\r\n";
2603 /* vty may not have been initialised */
2607 iov
[0].iov_base
= buf
;
2608 iov
[0].iov_len
= len
;
2609 iov
[1].iov_base
= crlf
;
2612 for (i
= 0; i
< vector_active(vtyvec
); i
++) {
2614 if (((vty
= vector_slot(vtyvec
, i
)) != NULL
) && vty
->monitor
)
2615 /* N.B. We don't care about the return code, since
2617 most likely just about to die anyway. */
2618 if (writev(vty
->wfd
, iov
, 2) == -1) {
2619 fprintf(stderr
, "Failure to writev: %d\n",
2626 int vty_config_lock(struct vty
*vty
)
2628 if (vty_config_is_lockless
)
2630 if (vty_config
== 0) {
2637 int vty_config_unlock(struct vty
*vty
)
2639 if (vty_config_is_lockless
)
2641 if (vty_config
== 1 && vty
->config
== 1) {
2648 void vty_config_lockless(void)
2650 vty_config_is_lockless
= 1;
2653 /* Master of the threads. */
2654 static struct thread_master
*vty_master
;
2656 static void vty_event(enum event event
, int sock
, struct vty
*vty
)
2658 struct thread
*vty_serv_thread
= NULL
;
2662 vty_serv_thread
= thread_add_read(vty_master
, vty_accept
, vty
,
2664 vector_set_index(Vvty_serv_thread
, sock
, vty_serv_thread
);
2668 vty_serv_thread
= thread_add_read(vty_master
, vtysh_accept
, vty
,
2670 vector_set_index(Vvty_serv_thread
, sock
, vty_serv_thread
);
2674 thread_add_read(vty_master
, vtysh_read
, vty
, sock
,
2678 vty
->t_write
= NULL
;
2679 thread_add_write(vty_master
, vtysh_write
, vty
, sock
,
2685 thread_add_read(vty_master
, vty_read
, vty
, sock
, &vty
->t_read
);
2687 /* Time out treatment. */
2688 if (vty
->v_timeout
) {
2690 thread_cancel(vty
->t_timeout
);
2691 vty
->t_timeout
= NULL
;
2692 thread_add_timer(vty_master
, vty_timeout
, vty
,
2693 vty
->v_timeout
, &vty
->t_timeout
);
2697 thread_add_write(vty_master
, vty_flush
, vty
, sock
,
2700 case VTY_TIMEOUT_RESET
:
2701 if (vty
->t_timeout
) {
2702 thread_cancel(vty
->t_timeout
);
2703 vty
->t_timeout
= NULL
;
2705 if (vty
->v_timeout
) {
2706 vty
->t_timeout
= NULL
;
2707 thread_add_timer(vty_master
, vty_timeout
, vty
,
2708 vty
->v_timeout
, &vty
->t_timeout
);
2714 DEFUN_NOSH (config_who
,
2717 "Display who is on vty\n")
2722 for (i
= 0; i
< vector_active(vtyvec
); i
++)
2723 if ((v
= vector_slot(vtyvec
, i
)) != NULL
)
2724 vty_out(vty
, "%svty[%d] connected from %s.\n",
2725 v
->config
? "*" : " ", i
, v
->address
);
2729 /* Move to vty configuration mode. */
2730 DEFUN_NOSH (line_vty
,
2733 "Configure a terminal line\n"
2734 "Virtual terminal\n")
2736 vty
->node
= VTY_NODE
;
2740 /* Set time out value. */
2741 static int exec_timeout(struct vty
*vty
, const char *min_str
,
2742 const char *sec_str
)
2744 unsigned long timeout
= 0;
2746 /* min_str and sec_str are already checked by parser. So it must be
2747 all digit string. */
2749 timeout
= strtol(min_str
, NULL
, 10);
2753 timeout
+= strtol(sec_str
, NULL
, 10);
2755 vty_timeout_val
= timeout
;
2756 vty
->v_timeout
= timeout
;
2757 vty_event(VTY_TIMEOUT_RESET
, 0, vty
);
2763 DEFUN (exec_timeout_min
,
2764 exec_timeout_min_cmd
,
2765 "exec-timeout (0-35791)",
2766 "Set timeout value\n"
2767 "Timeout value in minutes\n")
2770 return exec_timeout(vty
, argv
[idx_number
]->arg
, NULL
);
2773 DEFUN (exec_timeout_sec
,
2774 exec_timeout_sec_cmd
,
2775 "exec-timeout (0-35791) (0-2147483)",
2776 "Set the EXEC timeout\n"
2777 "Timeout in minutes\n"
2778 "Timeout in seconds\n")
2781 int idx_number_2
= 2;
2782 return exec_timeout(vty
, argv
[idx_number
]->arg
,
2783 argv
[idx_number_2
]->arg
);
2786 DEFUN (no_exec_timeout
,
2787 no_exec_timeout_cmd
,
2790 "Set the EXEC timeout\n")
2792 return exec_timeout(vty
, NULL
, NULL
);
2795 /* Set vty access class. */
2796 DEFUN (vty_access_class
,
2797 vty_access_class_cmd
,
2798 "access-class WORD",
2799 "Filter connections based on an IP access list\n"
2803 if (vty_accesslist_name
)
2804 XFREE(MTYPE_VTY
, vty_accesslist_name
);
2806 vty_accesslist_name
= XSTRDUP(MTYPE_VTY
, argv
[idx_word
]->arg
);
2811 /* Clear vty access class. */
2812 DEFUN (no_vty_access_class
,
2813 no_vty_access_class_cmd
,
2814 "no access-class [WORD]",
2816 "Filter connections based on an IP access list\n"
2820 const char *accesslist
= (argc
== 3) ? argv
[idx_word
]->arg
: NULL
;
2821 if (!vty_accesslist_name
2822 || (argc
== 3 && strcmp(vty_accesslist_name
, accesslist
))) {
2823 vty_out(vty
, "Access-class is not currently applied to vty\n");
2824 return CMD_WARNING_CONFIG_FAILED
;
2827 XFREE(MTYPE_VTY
, vty_accesslist_name
);
2829 vty_accesslist_name
= NULL
;
2834 /* Set vty access class. */
2835 DEFUN (vty_ipv6_access_class
,
2836 vty_ipv6_access_class_cmd
,
2837 "ipv6 access-class WORD",
2839 "Filter connections based on an IP access list\n"
2840 "IPv6 access list\n")
2843 if (vty_ipv6_accesslist_name
)
2844 XFREE(MTYPE_VTY
, vty_ipv6_accesslist_name
);
2846 vty_ipv6_accesslist_name
= XSTRDUP(MTYPE_VTY
, argv
[idx_word
]->arg
);
2851 /* Clear vty access class. */
2852 DEFUN (no_vty_ipv6_access_class
,
2853 no_vty_ipv6_access_class_cmd
,
2854 "no ipv6 access-class [WORD]",
2857 "Filter connections based on an IP access list\n"
2858 "IPv6 access list\n")
2861 const char *accesslist
= (argc
== 4) ? argv
[idx_word
]->arg
: NULL
;
2863 if (!vty_ipv6_accesslist_name
2864 || (argc
== 4 && strcmp(vty_ipv6_accesslist_name
, accesslist
))) {
2866 "IPv6 access-class is not currently applied to vty\n");
2867 return CMD_WARNING_CONFIG_FAILED
;
2870 XFREE(MTYPE_VTY
, vty_ipv6_accesslist_name
);
2872 vty_ipv6_accesslist_name
= NULL
;
2881 "Enable password checking\n")
2883 no_password_check
= 0;
2887 DEFUN (no_vty_login
,
2891 "Enable password checking\n")
2893 no_password_check
= 1;
2897 DEFUN (service_advanced_vty
,
2898 service_advanced_vty_cmd
,
2899 "service advanced-vty",
2900 "Set up miscellaneous service\n"
2901 "Enable advanced mode vty interface\n")
2907 DEFUN (no_service_advanced_vty
,
2908 no_service_advanced_vty_cmd
,
2909 "no service advanced-vty",
2911 "Set up miscellaneous service\n"
2912 "Enable advanced mode vty interface\n")
2918 DEFUN_NOSH (terminal_monitor
,
2919 terminal_monitor_cmd
,
2921 "Set terminal line parameters\n"
2922 "Copy debug output to the current terminal line\n")
2928 DEFUN_NOSH (terminal_no_monitor
,
2929 terminal_no_monitor_cmd
,
2930 "terminal no monitor",
2931 "Set terminal line parameters\n"
2933 "Copy debug output to the current terminal line\n")
2939 DEFUN_NOSH (no_terminal_monitor
,
2940 no_terminal_monitor_cmd
,
2941 "no terminal monitor",
2943 "Set terminal line parameters\n"
2944 "Copy debug output to the current terminal line\n")
2946 return terminal_no_monitor(self
, vty
, argc
, argv
);
2950 DEFUN_NOSH (show_history
,
2954 "Display the session command history\n")
2958 for (index
= vty
->hindex
+ 1; index
!= vty
->hindex
;) {
2959 if (index
== VTY_MAXHIST
) {
2964 if (vty
->hist
[index
] != NULL
)
2965 vty_out(vty
, " %s\n", vty
->hist
[index
]);
2974 DEFUN (log_commands
,
2978 "Log all commands (can't be unset without restart)\n")
2980 do_log_commands
= 1;
2984 /* Display current configuration. */
2985 static int vty_config_write(struct vty
*vty
)
2987 vty_out(vty
, "line vty\n");
2989 if (vty_accesslist_name
)
2990 vty_out(vty
, " access-class %s\n", vty_accesslist_name
);
2992 if (vty_ipv6_accesslist_name
)
2993 vty_out(vty
, " ipv6 access-class %s\n",
2994 vty_ipv6_accesslist_name
);
2997 if (vty_timeout_val
!= VTY_TIMEOUT_DEFAULT
)
2998 vty_out(vty
, " exec-timeout %ld %ld\n", vty_timeout_val
/ 60,
2999 vty_timeout_val
% 60);
3002 if (no_password_check
)
3003 vty_out(vty
, " no login\n");
3005 if (do_log_commands
)
3006 vty_out(vty
, "log commands\n");
3008 vty_out(vty
, "!\n");
3013 struct cmd_node vty_node
= {
3014 VTY_NODE
, "%s(config-line)# ", 1,
3017 /* Reset all VTY status. */
3022 struct thread
*vty_serv_thread
;
3024 for (i
= 0; i
< vector_active(vtyvec
); i
++)
3025 if ((vty
= vector_slot(vtyvec
, i
)) != NULL
) {
3026 buffer_reset(vty
->lbuf
);
3027 buffer_reset(vty
->obuf
);
3028 vty
->status
= VTY_CLOSE
;
3032 for (i
= 0; i
< vector_active(Vvty_serv_thread
); i
++)
3033 if ((vty_serv_thread
= vector_slot(Vvty_serv_thread
, i
))
3035 thread_cancel(vty_serv_thread
);
3036 vector_slot(Vvty_serv_thread
, i
) = NULL
;
3040 vty_timeout_val
= VTY_TIMEOUT_DEFAULT
;
3042 if (vty_accesslist_name
) {
3043 XFREE(MTYPE_VTY
, vty_accesslist_name
);
3044 vty_accesslist_name
= NULL
;
3047 if (vty_ipv6_accesslist_name
) {
3048 XFREE(MTYPE_VTY
, vty_ipv6_accesslist_name
);
3049 vty_ipv6_accesslist_name
= NULL
;
3053 static void vty_save_cwd(void)
3055 char cwd
[MAXPATHLEN
];
3058 c
= getcwd(cwd
, MAXPATHLEN
);
3062 * At this point if these go wrong, more than likely
3063 * the whole world is coming down around us
3064 * Hence not worrying about it too much.
3066 if (!chdir(SYSCONFDIR
)) {
3067 zlog_err("Failure to chdir to %s, errno: %d",
3071 if (getcwd(cwd
, MAXPATHLEN
) == NULL
) {
3072 zlog_err("Failure to getcwd, errno: %d", errno
);
3077 vty_cwd
= XMALLOC(MTYPE_TMP
, strlen(cwd
) + 1);
3078 strcpy(vty_cwd
, cwd
);
3086 int vty_shell(struct vty
*vty
)
3088 return vty
->type
== VTY_SHELL
? 1 : 0;
3091 int vty_shell_serv(struct vty
*vty
)
3093 return vty
->type
== VTY_SHELL_SERV
? 1 : 0;
3096 void vty_init_vtysh()
3098 vtyvec
= vector_init(VECTOR_MIN_SIZE
);
3101 /* Install vty's own commands like `who' command. */
3102 void vty_init(struct thread_master
*master_thread
)
3104 /* For further configuration read, preserve current directory. */
3107 vtyvec
= vector_init(VECTOR_MIN_SIZE
);
3109 vty_master
= master_thread
;
3111 atexit(vty_stdio_atexit
);
3113 /* Initilize server thread vector. */
3114 Vvty_serv_thread
= vector_init(VECTOR_MIN_SIZE
);
3116 /* Install bgp top node. */
3117 install_node(&vty_node
, vty_config_write
);
3119 install_element(VIEW_NODE
, &config_who_cmd
);
3120 install_element(VIEW_NODE
, &show_history_cmd
);
3121 install_element(CONFIG_NODE
, &line_vty_cmd
);
3122 install_element(CONFIG_NODE
, &service_advanced_vty_cmd
);
3123 install_element(CONFIG_NODE
, &no_service_advanced_vty_cmd
);
3124 install_element(CONFIG_NODE
, &show_history_cmd
);
3125 install_element(CONFIG_NODE
, &log_commands_cmd
);
3126 install_element(ENABLE_NODE
, &terminal_monitor_cmd
);
3127 install_element(ENABLE_NODE
, &terminal_no_monitor_cmd
);
3128 install_element(ENABLE_NODE
, &no_terminal_monitor_cmd
);
3130 install_default(VTY_NODE
);
3131 install_element(VTY_NODE
, &exec_timeout_min_cmd
);
3132 install_element(VTY_NODE
, &exec_timeout_sec_cmd
);
3133 install_element(VTY_NODE
, &no_exec_timeout_cmd
);
3134 install_element(VTY_NODE
, &vty_access_class_cmd
);
3135 install_element(VTY_NODE
, &no_vty_access_class_cmd
);
3136 install_element(VTY_NODE
, &vty_login_cmd
);
3137 install_element(VTY_NODE
, &no_vty_login_cmd
);
3138 install_element(VTY_NODE
, &vty_ipv6_access_class_cmd
);
3139 install_element(VTY_NODE
, &no_vty_ipv6_access_class_cmd
);
3142 void vty_terminate(void)
3145 XFREE(MTYPE_TMP
, vty_cwd
);
3147 if (vtyvec
&& Vvty_serv_thread
) {
3149 vector_free(vtyvec
);
3150 vector_free(Vvty_serv_thread
);
3152 Vvty_serv_thread
= NULL
;