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d4f0960cb2
* routemap.c: (rmap_onmatch_goto) fix crash if 'continue' command
is used, which does not supply an argv[0].
this is a backport candidate /iff/ the trailing ; is removed
from VTY_GET_INTEGER_RANGE
* vty.h: fix the VTY_GET macros, do {..} while(0) so they have
correct function like syntax in usage.
226 lines
6.8 KiB
C
226 lines
6.8 KiB
C
/* Virtual terminal [aka TeletYpe] interface routine
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Copyright (C) 1997 Kunihiro Ishiguro
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This file is part of GNU Zebra.
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GNU Zebra is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2, or (at your option) any
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later version.
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GNU Zebra is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Zebra; see the file COPYING. If not, write to the Free
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Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#ifndef _ZEBRA_VTY_H
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#define _ZEBRA_VTY_H
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#include "thread.h"
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#define VTY_BUFSIZ 512
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#define VTY_MAXHIST 20
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/* VTY struct. */
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struct vty
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{
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/* File descripter of this vty. */
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int fd;
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/* Is this vty connect to file or not */
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enum {VTY_TERM, VTY_FILE, VTY_SHELL, VTY_SHELL_SERV} type;
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/* Node status of this vty */
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int node;
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/* What address is this vty comming from. */
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char *address;
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/* Failure count */
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int fail;
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/* Output buffer. */
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struct buffer *obuf;
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/* Command input buffer */
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char *buf;
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/* Command cursor point */
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int cp;
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/* Command length */
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int length;
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/* Command max length. */
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int max;
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/* Histry of command */
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char *hist[VTY_MAXHIST];
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/* History lookup current point */
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int hp;
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/* History insert end point */
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int hindex;
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/* For current referencing point of interface, route-map,
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access-list etc... */
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void *index;
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/* For multiple level index treatment such as key chain and key. */
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void *index_sub;
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/* For escape character. */
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unsigned char escape;
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/* Current vty status. */
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enum {VTY_NORMAL, VTY_CLOSE, VTY_MORE, VTY_MORELINE} status;
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/* IAC handling: was the last character received the
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IAC (interpret-as-command) escape character (and therefore the next
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character will be the command code)? Refer to Telnet RFC 854. */
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unsigned char iac;
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/* IAC SB (option subnegotiation) handling */
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unsigned char iac_sb_in_progress;
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/* At the moment, we care only about the NAWS (window size) negotiation,
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and that requires just a 5-character buffer (RFC 1073):
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<NAWS char> <16-bit width> <16-bit height> */
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#define TELNET_NAWS_SB_LEN 5
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unsigned char sb_buf[TELNET_NAWS_SB_LEN];
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/* How many subnegotiation characters have we received? We just drop
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those that do not fit in the buffer. */
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size_t sb_len;
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/* Window width/height. */
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int width;
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int height;
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/* Configure lines. */
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int lines;
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/* Terminal monitor. */
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int monitor;
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/* In configure mode. */
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int config;
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/* Read and write thread. */
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struct thread *t_read;
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struct thread *t_write;
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/* Timeout seconds and thread. */
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unsigned long v_timeout;
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struct thread *t_timeout;
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};
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/* Integrated configuration file. */
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#define INTEGRATE_DEFAULT_CONFIG "Quagga.conf"
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/* Small macro to determine newline is newline only or linefeed needed. */
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#define VTY_NEWLINE ((vty->type == VTY_TERM) ? "\r\n" : "\n")
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/* Default time out value */
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#define VTY_TIMEOUT_DEFAULT 600
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/* Vty read buffer size. */
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#define VTY_READ_BUFSIZ 512
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/* Directory separator. */
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#ifndef DIRECTORY_SEP
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#define DIRECTORY_SEP '/'
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#endif /* DIRECTORY_SEP */
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#ifndef IS_DIRECTORY_SEP
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#define IS_DIRECTORY_SEP(c) ((c) == DIRECTORY_SEP)
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#endif
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/* GCC have printf type attribute check. */
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#ifdef __GNUC__
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#define PRINTF_ATTRIBUTE(a,b) __attribute__ ((__format__ (__printf__, a, b)))
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#else
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#define PRINTF_ATTRIBUTE(a,b)
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#endif /* __GNUC__ */
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/* Utility macros to convert VTY argument to unsigned long or integer. */
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#define VTY_GET_LONG(NAME,V,STR) \
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do { \
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char *endptr = NULL; \
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(V) = strtoul ((STR), &endptr, 10); \
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if (*endptr != '\0' || (V) == ULONG_MAX) \
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{ \
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vty_out (vty, "%% Invalid %s value%s", NAME, VTY_NEWLINE); \
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return CMD_WARNING; \
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} \
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} while (0)
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#define VTY_GET_INTEGER_RANGE(NAME,V,STR,MIN,MAX) \
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do { \
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unsigned long tmpl; \
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VTY_GET_LONG(NAME, tmpl, STR); \
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if ( (tmpl < (MIN)) || (tmpl > (MAX))) \
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{ \
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vty_out (vty, "%% Invalid %s value%s", NAME, VTY_NEWLINE); \
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return CMD_WARNING; \
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} \
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(V) = tmpl; \
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} while (0)
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#define VTY_GET_INTEGER(NAME,V,STR) \
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VTY_GET_INTEGER_RANGE(NAME,V,STR,0U,UINT32_MAX)
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#define VTY_GET_IPV4_ADDRESS(NAME,V,STR) \
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do { \
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int retv; \
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retv = inet_aton ((STR), &(V)); \
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if (!retv) \
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{ \
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vty_out (vty, "%% Invalid %s value%s", NAME, VTY_NEWLINE); \
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return CMD_WARNING; \
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} \
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} while (0)
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#define VTY_GET_IPV4_PREFIX(NAME,V,STR) \
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do { \
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int retv; \
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retv = str2prefix_ipv4 ((STR), &(V)); \
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if (retv <= 0) \
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{ \
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vty_out (vty, "%% Invalid %s value%s", NAME, VTY_NEWLINE); \
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return CMD_WARNING; \
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} \
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} while (0)
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/* Exported variables */
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extern char integrate_default[];
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/* Prototypes. */
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extern void vty_init (struct thread_master *);
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extern void vty_init_vtysh (void);
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extern void vty_reset (void);
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extern struct vty *vty_new (void);
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extern int vty_out (struct vty *, const char *, ...) PRINTF_ATTRIBUTE(2, 3);
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extern void vty_read_config (char *, char *);
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extern void vty_time_print (struct vty *, int);
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extern void vty_serv_sock (const char *, unsigned short, const char *);
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extern void vty_close (struct vty *);
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extern char *vty_get_cwd (void);
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extern void vty_log (const char *level, const char *proto,
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const char *fmt, va_list);
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extern int vty_config_lock (struct vty *);
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extern int vty_config_unlock (struct vty *);
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extern int vty_shell (struct vty *);
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extern int vty_shell_serv (struct vty *);
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extern void vty_hello (struct vty *);
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/* Send a fixed-size message to all vty terminal monitors; this should be
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an async-signal-safe function. */
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extern void vty_log_fixed (const char *buf, size_t len);
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#endif /* _ZEBRA_VTY_H */
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