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commands.c
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commands.c
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/*
* Copyright (c) 2002-2008 Chris Cappuccio <[email protected]>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* Copyright (c) 1988, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <signal.h>
#include <sys/fcntl.h>
#include <sys/socket.h>
#include <sys/param.h>
#include <sys/reboot.h>
#include <sys/sockio.h>
#include <sys/wait.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <net/route.h>
#include <limits.h>
#include <util.h>
#include <pwd.h>
#include "editing.h"
#include "stringlist.h"
#include "externs.h"
#include "sysctl.h"
char prompt[128];
char line[1024];
char saveline[1024];
int margc;
char hname[HSIZE];
static char hbuf[MAXHOSTNAMELEN]; /* host name */
static char ifname[IFNAMSIZ]; /* interface name */
struct intlist *whichlist;
#define NARGS sizeof(line)/2 /* max arguments in char line[] */
char *margv[NARGS]; /* argv storage */
size_t cursor_argc; /* location of cursor in margv */
size_t cursor_argo; /* offset of cursor margv[cursor_argc] */
pid_t child;
static int quit(void);
static int disable(void);
static int doverbose(int, char**);
static int doediting(int, char**);
int rtable(int, char**);
int group(int, char**);
static int nsh_setrtable(int);
static int pr_routes(int, char **);
static int pr_routes6(int, char **);
static int pr_arp(int, char **);
static int pr_sadb(int, char **);
static int pr_kernel(int, char **);
static int pr_prot1(int, char **);
static int pr_dhcp(int, char **);
static int pr_conf(int, char **);
static int pr_s_conf(int, char **);
static int show_hostname(int, char **);
static int wr_startup(void);
static int wr_conf(char *);
static int show_help(int, char **);
static int sysctlhelp(int, char **, char **, int);
static int flush_pf(char *);
static int flush_help(void);
static int flush_line(char *);
static int flush_ip_routes(void);
static int flush_arp_cache(void);
static int flush_history(void);
static int int_help(void);
static int el_burrito(EditLine *, int, char **);
static int hostname(int, char **);
static int help(int, char**);
static int shell(int, char*[]);
static int ping(int, char*[]);
static int ping6(int, char*[]);
static int traceroute(int, char*[]);
static int traceroute6(int, char*[]);
static int ssh(int, char*[]);
static int telnet(int, char*[]);
void p_argv(int, char **);
static int notvalid(void);
static int nreboot(void);
static int halt(void);
static Command *getcmd(char *);
static void pf_stats(void);
static void sigalarm(int);
#include "commands.h"
void sigalarm(int blahfart)
{
if (child != -1) {
kill(child, SIGKILL);
}
}
/*
* Quit command
*/
int
quit(void)
{
printf("%% Session terminated.\n");
exit(0);
return 0;
}
/*
* Data structures and routines for the "show" command.
*/
Menu showlist[] = {
{ "hostname", "Router hostname", CMPL0 0, 0, 0, 0, show_hostname },
{ "interface", "Interface config", CMPL(i) 0, 0, 0, 1, show_int },
{ "route", "IPv4 route table or route lookup", CMPL0 0, 0, 0, 1, pr_routes },
{ "route6", "IPv6 route table or route lookup", CMPL0 0, 0, 0, 1, pr_routes6 },
{ "sadb", "Security Association Database", CMPL0 0, 0, 0, 0, pr_sadb },
{ "arp", "ARP table", CMPL0 0, 0, 0, 1, pr_arp },
{ "kernel", "Kernel statistics", CMPL(ta) (char **)stts, sizeof(struct stt), 0, 1, pr_kernel },
{ "bgp", "BGP information", CMPL(ta) (char **)bgcs, sizeof(struct prot1), 0, 4, pr_prot1 },
{ "ospf", "OSPF information", CMPL(ta) (char **)oscs, sizeof(struct prot1), 0, 3, pr_prot1 },
{ "ospf6", "OSPF6 information", CMPL(ta) (char **)os6cs, sizeof(struct prot1), 0, 3, pr_prot1 },
{ "rip", "RIP information", CMPL(ta) (char **)rics, sizeof(struct prot1), 0, 3, pr_prot1 },
{ "ldp", "LDP information", CMPL(ta) (char **)lics, sizeof(struct prot1), 0, 3, pr_prot1 },
{ "ike", "IKE information", CMPL(ta) (char **)ikcs, sizeof(struct prot1), 0, 3, pr_prot1 },
{ "dvmrp", "DVMRP information", CMPL(ta) (char **)dvcs, sizeof(struct prot1), 0, 2, pr_prot1 },
{ "relay", "Relay server", CMPL(ta) (char **)rlcs, sizeof(struct prot1), 0, 1, pr_prot1 },
{ "dhcp", "DHCP server", CMPL(ta) (char **)dhcs, sizeof(struct prot1), 0, 1, pr_dhcp },
{ "smtp", "SMTP server", CMPL(ta) (char **)smcs, sizeof(struct prot1), 0, 1, pr_prot1 },
{ "ldap", "LDAP server", CMPL(ta) (char **)ldcs, sizeof(struct prot1), 0, 1, pr_prot1 },
{ "monitor", "Monitor routing/arp table changes", CMPL0 0, 0, 0, 0, monitor },
{ "version", "Software information", CMPL0 0, 0, 0, 0, version },
{ "users", "System users", CMPL0 0, 0, 0, 0, who },
{ "running-config", "Operating configuration", CMPL0 0, 0, 0, 0, pr_conf },
{ "startup-config", "Startup configuration", CMPL0 0, 0, 0, 0, pr_s_conf },
{ "?", "Options", CMPL0 0, 0, 0, 0, show_help },
{ "help", 0, CMPL0 0, 0, 0, 0, show_help },
{ 0, 0, 0, 0, 0 }
};
static int
showcmd(int argc, char **argv)
{
Menu *s; /* pointer to current command */
int success = 0;
if (argc < 2) {
show_help(argc, argv);
return 0;
}
/*
* Validate show argument
*/
s = (Menu *) genget(argv[1], (char **) showlist, sizeof(Menu));
if (s == 0) {
printf("%% Invalid argument %s\n", argv[1]);
return 0;
} else if (Ambiguous(s)) {
printf("%% Ambiguous argument %s\n", argv[1]);
return 0;
}
if (((s->minarg + 2) > argc) || ((s->maxarg + 2) < argc)) {
printf("%% Wrong number of argument%s to 'show %s' command"
" (min %i, max %i)\n", argc <= 2 ? "" : "s", s->name,
s->minarg, s->maxarg);
return 0;
}
if (s->handler) /* As if there was something else we do ? */
success = (*s->handler)(argc, argv);
return(success);
}
static int
show_help(int argc, char **argv)
{
Menu *s; /* pointer to current command */
u_int z = 0;
printf("%% Commands may be abbreviated.\n");
printf("%% 'show' commands are:\n\n");
for (s = showlist; s->name; s++) {
if (strlen(s->name) > z)
z = strlen(s->name);
}
for (s = showlist; s->name; s++) {
if (s->help)
printf(" %-*s %s\n", z, s->name, s->help);
}
return 0;
}
/*
* Data structures and routines for the "ip" command.
*/
Menu iptab[] = {
{ "carp", "Allow CARP", CMPL0 0, 0, 0, 0, ipsysctl },
{ "carp-log", "CARP Logging Priority", CMPL0 0, 0, 0, 1, ipsysctl },
{ "carp-preempt", "CARP Virtual Host Preemption", CMPL0 0, 0, 0, 0, ipsysctl },
{ "forwarding", "Enable IPv4 Forwarding", CMPL0 0, 0, 0, 0, ipsysctl },
{ "mforwarding", "Enable IPv4 Multicast Forwarding", CMPL0 0, 0, 0, 0, ipsysctl },
{ "ipip", "Allow IP-in-IP Encapsulation", CMPL0 0, 0, 0, 0, ipsysctl },
{ "gre", "Allow Generic Route Encapsulation", CMPL0 0, 0, 0, 0, ipsysctl },
{ "wccp", "Allow Web Cache Control Protocol", CMPL0 0, 0, 0, 0, ipsysctl },
{ "mobileip", "Allow Mobile IP Encapsulation", CMPL0 0, 0, 0, 0, ipsysctl },
{ "etherip", "Allow Ether-IP Encapsulation", CMPL0 0, 0, 0, 0, ipsysctl },
{ "ipcomp", "Allow IP Compression", CMPL0 0, 0, 0, 0, ipsysctl },
{ "esp", "Allow Encapsulated Security Payload", CMPL0 0, 0, 0, 0, ipsysctl },
{ "esp-udpencap","Allow ESP encapsulation within UDP", CMPL0 0, 0, 0, 0, ipsysctl },
{ "esp-udpencap-port","UDP port number for encapsulation", CMPL0 0, 0, 0, 1, ipsysctl },
{ "ah", "Allow Authentication Header", CMPL0 0, 0, 0, 0, ipsysctl },
{ "sourceroute", "Process Loose/Strict Source Route Options", CMPL0 0, 0, 0, 0, ipsysctl },
{ "encdebug", "Enable if_enc debugging", CMPL0 0, 0, 0, 0, ipsysctl },
{ "send-redirects", "Send ICMP redirects", CMPL0 0, 0, 0, 0, ipsysctl },
{ "ifq-maxlen", "IP IFQ maxlen", CMPL0 0, 0, 0, 1, ipsysctl },
{ "directed-broadcast", "Allow directed broadcasts", CMPL0 0, 0, 0, 0, ipsysctl },
{ "multipath", "Multipath routing", CMPL0 0, 0, 0, 0, ipsysctl },
#ifdef notyet
{ "default-mtu", "Default interface MTU", CMPL0 0, 0, 1, 1, ipsysctl },
#endif
{ "default-ttl", "Set Default IP packet TTL", CMPL0 0, 0, 1, 1, ipsysctl },
{ "?", "Options", CMPL0 0, 0, 0, 0, sysctlhelp },
{ 0, 0, 0, 0, 0, 0, 0, 0 }
};
Menu ip6tab[] = {
{ "forwarding", "Enable IPv6 Forwarding", CMPL0 0, 0, 0, 0, ipsysctl },
{ "mforwarding", "Enable IPv6 Multicast Forwarding", CMPL0 0, 0, 0, 0, ipsysctl },
{ "multipath", "Multipath routing", CMPL0 0, 0, 0, 0, ipsysctl },
{ "v6only", "IPv6 only", CMPL0 0, 0, 0, 0, ipsysctl },
{ "maxifprefixes", "Max if IPv6 Prefixes", CMPL0 0, 0, 0, 0, ipsysctl },
{ "maxifdefrouters", "Max if IPv6 Def Routers", CMPL0 0, 0, 0, 0, ipsysctl },
{ "maxdynroutes", "Max IPv6 Dyn Routes", CMPL0 0, 0, 0, 0, ipsysctl },
{ "accept-rtadv", "Accept Router Advertisements", CMPL0 0, 0, 0, 0, ipsysctl },
{ "?", "Help", CMPL0 0, 0, 0, 0, sysctlhelp },
{ 0, 0, 0, 0, 0, 0, 0, 0 }
};
Menu mplstab[] = {
{ "ttl", "MPLS ttl", CMPL0 0, 0, 0, 1, ipsysctl },
{ "ifq-maxlen", "MPLS IFQ maxlen", CMPL0 0, 0, 0, 1, ipsysctl },
{ "mapttl-ip", "MPLS mapttl IPv4", CMPL0 0, 0, 0, 1, ipsysctl },
{ "mapttl-ip6", "MPLS mapttl IPv6", CMPL0 0, 0, 0, 1, ipsysctl },
{ "?", "Help", CMPL0 0, 0, 0, 0, sysctlhelp },
{ 0, 0, 0, 0, 0, 0, 0, 0 }
};
Menu ddbtab[] = {
{ "panic", "DDB panic", CMPL0 0, 0, 0, 1, ipsysctl },
{ "console", "DDB console", CMPL0 0, 0, 0, 1, ipsysctl },
{ "log", "DDB log", CMPL0 0, 0, 0, 1, ipsysctl },
{ "?", "Help", CMPL0 0, 0, 0, 0, sysctlhelp },
{ 0, 0, 0, 0, 0, 0, 0, 0 }
};
Menu pipextab[] = {
{ "enable", "PIPEX enable", CMPL0 0, 0, 0, 1, ipsysctl },
{ "?", "Help", CMPL0 0, 0, 0, 0, sysctlhelp },
{ 0, 0, 0, 0, 0, 0, 0, 0 }
};
static int
ipcmd(int argc, char **argv)
{
Menu *i; /* pointer to current command */
struct sysctltab *stab;
int set, success = 0;
if (NO_ARG(argv[0])) {
argv++;
argc--;
set = 0;
} else
set = 1;
/*
* Find ourself in the great divide
*/
stab = (struct sysctltab *)genget(argv[0], (char **)sysctls,
sizeof(struct sysctltab));
if (stab == 0) {
printf("%% Invalid argument %s\n", argv[0]);
return 0;
} else if (Ambiguous(stab)) {
printf("%% Ambiguous argument %s\n", argv[0]);
return 0;
}
if (argc < 2) {
sysctlhelp(0, NULL, NULL, stab->pf);
return 0;
}
/*
* Validate ip argument
*/
i = (Menu *)genget(argv[1], (char **)stab->table, sizeof(Menu));
if (i == 0) {
printf("%% Invalid argument %s\n", argv[1]);
return 0;
} else if (Ambiguous(i)) {
printf("%% Ambiguous argument %s\n", argv[1]);
return 0;
}
if (((i->minarg + 2) > argc) || ((i->maxarg + 2) < argc)) {
printf("%% Wrong argument%s to '%s %s' command.\n",
argv[0], argc <= 2 ? "" : "s", i->name);
return 0;
}
if (i->handler)
success = (*i->handler)(set, argv[1],
(i->maxarg > 0) ? argv[2] : 0, stab->pf);
return(success);
}
static int
sysctlhelp(int unused1, char **unused2, char **unused3, int type)
{
Menu *i = NULL, *j = NULL; /* pointer to current command */
char *prefix = NULL;
u_int z = 0;
struct sysctltab *stab;
for (stab = sysctls; stab->name != NULL; stab++)
if (stab->pf == type) {
prefix = stab->name;
i = j = stab->table;
break;
}
if (stab->pf != type) {
printf("%% table lookup failed (%d)\n", type);
return 0;
}
printf("%% Commands may be abbreviated.\n");
printf("%% '%s' commands are:\n\n", prefix);
for (; i && i->name; i++) {
if (strlen(i->name) > z)
z = strlen(i->name);
}
for (; j && j->name; j++) {
if (j->help)
printf(" %-*s %s\n", z, j->name, j->help);
}
return 0;
}
/*
* Data structures and routines for the "flush" command.
*/
Menu flushlist[] = {
{ "routes", "IP routes", CMPL0 0, 0, 0, 0, flush_ip_routes },
{ "arp", "ARP cache", CMPL0 0, 0, 0, 0, flush_arp_cache },
{ "line", "Active user", CMPL0 0, 0, 1, 1, flush_line },
{ "bridge-dyn", "Dynamically learned bridge addresses", CMPL0 0, 0, 1, 1, flush_bridgedyn },
{ "bridge-all", "Dynamic and static bridge addresses", CMPL0 0, 0, 1, 1, flush_bridgeall },
{ "bridge-rule", "Layer 2 filter rules for a bridge member port", CMPL0 0, 0, 2, 2, flush_bridgerule },
{ "pf", "pf NAT/filter/queue rules, states, tables", CMPL(t) (char**)fpfs, sizeof(struct fpf), 0, 1, flush_pf },
{ "history", "Command history", CMPL0 0, 0, 0, 0, flush_history },
{ "?", "Options", CMPL0 0, 0, 0, 0, flush_help },
{ "help", 0, CMPL0 0, 0, 0, 0, flush_help },
{ 0, 0, 0, 0, 0 }
};
static int
flushcmd(int argc, char **argv)
{
Menu *f;
if (argc < 2) {
flush_help();
return 0;
}
/*
* Validate flush argument
*/
f = (Menu *) genget(argv[1], (char **)flushlist, sizeof(Menu));
if (f == 0) {
printf("%% Invalid argument %s\n", argv[1]);
return 0;
} else if (Ambiguous(f)) {
printf("%% Ambiguous argument %s\n", argv[1]);
return 0;
}
if (((f->minarg + 2) > argc) || ((f->maxarg + 2) < argc)) {
printf("%% Wrong argument%s to 'flush %s' command.\n",
argc <= 2 ? "" : "s", f->name);
return 0;
}
if (f->handler)
(*f->handler)((f->maxarg > 0) ? argv[2] : 0,
(f->maxarg > 1) ? argv[3] : 0);
return(1);
}
static int
flush_line(char *line)
{
char *argv[] = { PKILL, "-9", "-t", line, '\0' };
cmdargs(PKILL, argv);
return (1);
}
static int
flush_help(void)
{
Menu *f;
u_int z = 0;
printf("%% Commands may be abbreviated.\n");
printf("%% 'flush' commands are:\n\n");
for (f = flushlist; f->name; f++) {
if (strlen(f->name) > z)
z = strlen(f->name);
}
for (f = flushlist; f->name; f++) {
if (f->help)
printf(" %-*s %s\n", z, f->name, f->help);
}
return 0;
}
/*
* Data structures and routines for the interface configuration mode
*/
struct intlist Intlist[] = {
/* Interface mode commands */
{ "ip", "IP address and other parameters", CMPL0 0, 0, intip },
{ "alias", "Additional IP addresses and other parameters", CMPL0 0, 0, intip },
{ "description", "Interface description", CMPL0 0, 0, intdesc },
{ "group", "Interface group", CMPL0 0, 0, intgroup },
{ "rdomain", "Interface routing domain", CMPL0 0, 0, intrdomain },
{ "rtlabel", "Interface route labels", CMPL0 0, 0, intrtlabel },
{ "priority", "Interface priority", CMPL0 0, 0, intmetric },
{ "mtu", "Set Maximum Transmission Unit", CMPL0 0, 0, intmtu },
{ "metric", "Set routing metric", CMPL0 0, 0, intmetric },
{ "link", "Set link level options", CMPL0 0, 0, intlink },
{ "arp", "Set Address Resolution Protocol", CMPL0 0, 0, intflags },
{ "label", "Set MPLS Label", CMPL0 0, 0, intlabel },
{ "lladdr", "Set Link Level (MAC) Address", CMPL0 0, 0, intlladdr },
{ "nwid", "802.11 network ID", CMPL0 0, 0, intnwid },
{ "nwkey", "802.11 network key", CMPL0 0, 0, intnwkey },
{ "powersave", "802.11 powersaving mode", CMPL0 0, 0, intpowersave },
{ "txpower", "802.11 transmit power", CMPL0 0, 0, inttxpower },
{ "bssid", "802.11 bss id", CMPL0 0, 0, intbssid },
{ "media", "Media type", CMPL0 0, 0, intmedia },
{ "mediaopt", "Media options", CMPL0 0, 0, intmediaopt },
{ "auth", "PPP authentication", CMPL0 0, 0, intsppp },
{ "peer", "PPP peer authentication", CMPL0 0, 0, intsppp },
{ "pppoe", "PPPoE settings", CMPL0 0, 0, intpppoe },
#ifdef INET6
{ "vltime", "IPv6 valid lifetime", CMPL0 0, 0, intvltime },
{ "pltime", "IPv6 preferred lifetime", CMPL0 0, 0, intpltime },
{ "anycast", "IPv6 anycast address bit", CMPL0 0, 0, intanycast },
{ "tentative", "IPv6 tentative address bit", CMPL0 0, 0, inttentative },
{ "eui64", "IPv6 automatic interface index", CMPL0 0, 0, inteui64 },
#endif
{ "tunnel", "Source/destination for GIF/GRE tunnel",CMPL0 0, 0, inttunnel },
{ "keepalive", "GRE tunnel keepalive", CMPL0 0, 0, intkeepalive },
{ "syncdev", "PFsync control message interface", CMPL(i) 0, 0, intsyncdev },
{ "syncpeer", "PFsync peer address", CMPL0 0, 0, intsyncpeer },
{ "maxupd", "PFsync max updates, defer first packet", CMPL0 0, 0, intmaxupd },
{ "vhid", "CARP virtual host ID", CMPL0 0, 0, intcarp },
{ "advbase", "CARP advertisement interval", CMPL0 0, 0, intcarp },
{ "advskew", "CARP advertisement skew", CMPL0 0, 0, intcarp },
{ "carppass", "CARP passphrase", CMPL0 0, 0, intcpass },
{ "carpdev", "CARP device", CMPL(i) 0, 0, intcdev },
{ "carpnode", "CARP additional vhid/advskew", CMPL0 0, 0, intcnode },
{ "carppeer", "CARP peer", CMPL0 0, 0, intcarp },
{ "balancing", "CARP balancing mode", CMPL0 0, 0, intcarp },
{ "pflow", "pflow data export", CMPL0 0, 0, intpflow },
{ "vlan", "802.1Q vlan tag and parent", CMPL0 0, 0, intvlan },
{ "timeslots", "TDM timeslots", CMPL0 0, 0, inttimeslot },
{ "debug", "Driver dependent debugging", CMPL0 0, 0, intflags },
{ "dhcrelay", "DHCP Relay Agent", CMPL0 0, 0, intdhcrelay },
{ "wol", "Wake On LAN", CMPL0 0, 0, intxflags },
{ "mpls", "MPLS", CMPL0 0, 0, intxflags },
{ "inet6", "IPv6", CMPL0 0, 0, intxflags },
{ "rtsol", "IPv6 router solicitation request", CMPL0 0, 0, intrtd },
{ "rtadvd", "IPv6 router advertisement service", CMPL0 0, 0, intrtd },
{ "autoconfprivacy", "IPv6 Autoconfigurable address", CMPL0 0, 0, intxflags },
{ "trunkport", "Add child interface(s) to trunk", CMPL0 0, 0, inttrunkport },
{ "trunkproto", "Define trunkproto", CMPL0 0, 0, inttrunkproto },
{ "shutdown", "Shutdown interface", CMPL0 0, 0, intflags },
{ "?", "Options", CMPL0 0, 0, int_help },
{ "help", 0, CMPL0 0, 0, int_help },
{ 0, 0, 0, 0, 0 }
};
struct intlist Bridgelist[] = {
/* Bridge mode commands */
{ "description", "Bridge description", CMPL0 0, 0, intdesc },
{ "member", "Bridge member(s)", CMPL(i) 0, 0, brport },
{ "span", "Bridge spanning port(s)", CMPL(i) 0, 0, brport },
{ "blocknonip", "Block non-IP traffic forwarding on member(s)", CMPL0 0, 0, brport },
{ "discover", "Mark member(s) as discovery port(s)", CMPL0 0, 0, brport },
{ "learning", "Mark member(s) as learning port(s)", CMPL0 0, 0, brport },
{ "stp", "Enable 802.1D spanning tree protocol on member(s)", CMPL0 0, 0, brport },
{ "maxaddr", "Maximum address cache size", CMPL0 0, 0, brval },
{ "timeout", "Address cache timeout", CMPL0 0, 0, brval },
{ "maxage", "Time for 802.1D configuration to remain valid", CMPL0 0, 0, brval },
{ "fwddelay", "Time before bridge begins forwarding packets", CMPL0 0, 0, brval },
{ "hellotime", "802.1D configuration packet broadcast interval", CMPL0 0, 0, brval },
{ "priority", "Spanning priority for all members on an 802.1D bridge",CMPL0 0, 0, brval },
{ "rule", "Bridge layer 2 filtering rules", CMPL0 0, 0, brrule },
{ "static", "Static bridge address entry", CMPL0 0, 0, brstatic },
{ "ifpriority", "Spanning priority of a member on an 802.1D bridge", CMPL0 0, 0, brpri },
{ "ifcost", "Spanning tree path cost of a member on 802.1D bridge", CMPL0 0, 0, brpri },
{ "link", "Set link level options", CMPL0 0, 0, intlink },
{ "shutdown", "Shutdown bridge", CMPL0 0, 0, intflags },
/* Help commands */
{ "?", "Options", CMPL0 0, 0, int_help },
{ "help", 0, CMPL0 0, 0, int_help },
{ 0, 0, 0, 0, 0, 0 }
};
/*
* command handler for interface and bridge modes
*
* acts as a loop for human keyboard user, and as a one time command
* lookup for rcfile -c or -i usage
*
* if a function returns to interface() with a 1, interface() will break
* the user back to command() mode.
*/
static int
interface(int argc, char **argv, char *modhvar)
{
u_int num;
int ifs, set = 1;
char *tmp;
struct intlist *i; /* pointer to current command */
struct ifreq ifr;
if (!modhvar) {
if (NO_ARG(argv[0])) {
argv++;
argc--;
set = 0;
}
if (argc != 2) {
printf("%% [no] interface <interface name>\n");
return(0);
}
tmp = argv[1];
} else {
/* called from cmdrc(), processing config file rules only */
if (argc == 2 && strcmp(modhvar, argv[1]) == 0) {
/* do-nothing */
return(0);
}
tmp = modhvar;
}
if (strlen(tmp) > IFNAMSIZ-1) {
printf("%% interface name too long\n");
return(0);
}
ifname[IFNAMSIZ-1] = '\0';
strlcpy(ifname, tmp, IFNAMSIZ);
strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
ifs = socket(AF_INET, SOCK_DGRAM, 0);
if (ifs < 0) {
printf("%% socket failed: %s\n", strerror(errno));
return(1);
}
if (!is_valid_ifname(ifname)) {
if (set == 0) {
printf("%% interface %s not found\n", ifname);
close(ifs);
return(0);
}
if (ioctl(ifs, SIOCIFCREATE, &ifr) == -1) {
if (errno == EINVAL)
printf("%% interface %s not found\n", ifname);
else
printf("%% unable to create interface %s: %s\n",
ifname, strerror(errno));
close(ifs);
return(0);
}
}
if (set == 0) {
if (ioctl(ifs, SIOCIFDESTROY, &ifr) == -1) {
printf("%% unable to remove interface %s: %s\n",
ifname, strerror(errno));
} else {
/* remove interface routes? */
}
close(ifs);
return(0);
}
if (is_bridge(ifs, ifname)) {
/* whichlist also used by help, command completion code */
whichlist = Bridgelist;
bridge = 1;
} else {
whichlist = Intlist;
bridge = 0;
}
if (modhvar) {
/* direct rcfile -i or -c initialization */
char *argp;
if (argc - 1 > NARGS)
argc = NARGS;
if (argv[0] == 0)
return(0);
if (NO_ARG(argv[0]))
argp = argv[1];
else
argp = argv[0];
i = (struct intlist *) genget(argp, (char **)
whichlist, sizeof(struct intlist));
if (Ambiguous(i)) {
printf("%% Ambiguous command\n");
} else if (i == 0) {
printf("%% Invalid command\n");
} else {
int save_cli_rtable = cli_rtable;
cli_rtable = 0;
((*i->handler) (ifname, ifs, argc, argv));
cli_rtable = save_cli_rtable;
}
return(0);
}
/* human at the keyboard */
for (;;) {
char *margp;
if (!editing) {
/* command line editing disabled */
printf("%s", iprompt());
if (fgets(line, sizeof(line), stdin) == NULL) {
if (feof(stdin) || ferror(stdin)) {
printf("\n");
close(ifs);
return(0);
}
break;
}
} else {
const char *buf;
cursor_pos = NULL;
if ((buf = el_gets(eli, &num)) == NULL || num == 0)
break;
if (buf[--num] == '\n') {
if (num == 0)
break;
}
if (num >= sizeof(line)) {
printf("%% Input exceeds permitted length\n");
break;
}
memcpy(line, buf, (size_t)num);
line[num] = '\0';
history(histi, &ev, H_ENTER, buf);
}
if (line[0] == 0)
break;
makeargv();
if (margv[0] == 0)
break;
if (NO_ARG(margv[0]))
margp = margv[1];
else
margp = margv[0];
i = (struct intlist *) genget(margp, (char **)
whichlist, sizeof(struct intlist));
if (Ambiguous(i)) {
printf("%% Ambiguous command\n");
} else if (i == 0) {
int val = 1;
if (editing)
val = el_burrito(eli, margc, margv);
if (val)
printf("%% Invalid command\n");
} else {
int save_cli_rtable = cli_rtable;
cli_rtable = 0;
if ((*i->handler) (ifname, ifs, margc, margv)) {
cli_rtable = save_cli_rtable;
break;
}
cli_rtable = save_cli_rtable;
}
}
close(ifs);
return(0);
}
static int
int_help(void)
{
struct intlist *i; /* pointer to current command */
u_int z = 0;
printf("%% Commands may be abbreviated.\n");
printf("%% Press enter at a prompt to leave %s configuration mode.\n",
bridge ? "bridge" : "interface");
printf("%% %s configuration commands are:\n\n",
bridge ? "Bridge" : "Interface");
for (i = whichlist; i->name; i++) {
if (strlen(i->name) > z)
z = strlen(i->name);
}
for (i = whichlist; i->name; i++) {
if (i->help)
printf(" %-*s %s\n", z, i->name, i->help);
}
return 0;
}
/*
* Data structures and routines for the main CLI
*/
static char
hostnamehelp[] = "Set system hostname",
interfacehelp[] = "Modify interface parameters",
rtablehelp[] = "Routing table switch",
grouphelp[] = "Modify group attributes",
arphelp[] = "Static ARP set",
#ifdef notyet
parphelp[] = "Proxy ARP set",
#endif
pfhelp[] = "Packet filter control",
ospfhelp[] = "OSPF control",
ospf6help[] = "OSPF6 control",
bgphelp[] = "BGP control",
riphelp[] = "RIP control",
ldphelp[] = "LDP control",
relayhelp[] = "Relay control",
ipsechelp[] = "IPsec IKEv1 control",
ikehelp[] = "IPsec IKEv2 control",
rtadvhelp[] = "Router advertisement control",
dvmrphelp[] = "DVMRP control",
sasynchelp[] = "SA synchronization control",
dhcphelp[] = "DHCP server control",
snmphelp[] = "SNMP server control",
smtphelp[] = "SMTP server control",
ldaphelp[] = "LDAP server control",
sshdhelp[] = "SSH server control",
ntphelp[] = "NTP synchronization control",
nppphelp[] = "PPP server control",
ifstatehelp[] = "ifstate server control",
ftpproxyhelp[] ="ftp-proxy server control",
tftpproxyhelp[] ="tftp-proxy server control",
tftphelp[] = "TFTP server control",
dnshelp[] = "DNS rule control",
inethelp[] = "Inet super-server control",
bridgehelp[] = "Modify bridge parameters",
showhelp[] = "Show system information",
iphelp[] = "Set IP networking parameters",
ip6help[] = "Set IPv6 networking parameters",
mplshelp[] = "Set MPLS network parameters",
ddbhelp[] = "Set DDB parameters",
pipexhelp[] = "Set PIPEX parameters",
flushhelp[] = "Flush system tables",
enablehelp[] = "Enable privileged mode",
disablehelp[] = "Disable privileged mode",
routehelp[] = "Add a host or network route",
pinghelp[] = "Send IPv4 ICMP echo request",
ping6help[] = "Send IPv6 ICMP echo request",
tracerthelp[] = "Print the route to IPv4 host",
tracert6help[] ="Print the route to IPv6 host",
sshhelp[] = "SSH connection to remote host",
telnethelp[] = "Telnet connection to remote host",
quithelp[] = "Close current connection",
verbosehelp[] = "Set verbose diagnostics",
editinghelp[] = "Set command line editing",
whohelp[] = "Display system users",
shellhelp[] = "Invoke a subshell",
savehelp[] = "Save the current configuration",
nreboothelp[] = "Reboot the system",
halthelp[] = "Halt the system",
helphelp[] = "Print help information";
/*
* Primary commands, will be included in help output
*/
#define ssctl sizeof(struct ctl)
Command cmdtab[] = {
{ "hostname", hostnamehelp, CMPL0 0, 0, hostname, 1, 0, 0 },
{ "interface", interfacehelp, CMPL(i) 0, 0, interface, 1, 1, 1 },
{ "rtable", rtablehelp, CMPL0 0, 0, rtable, 0, 1, 2 },
{ "group", grouphelp, CMPL0 0, 0, group, 1, 1, 0 },
{ "arp", arphelp, CMPL0 0, 0, arpset, 1, 1, 0 },
#ifdef notyet
{ "proxy-arp", parphelp, CMPL0 0, 0, arpset, 1, 1, 0 },
#endif
{ "bridge", bridgehelp, CMPL(i) 0, 0, interface, 1, 0, 1 },
{ "show", showhelp, CMPL(ta) (char **)showlist, sizeof(Menu), showcmd, 0, 0, 0 },
{ "ip", iphelp, CMPL(ta) (char **)iptab, sizeof(Menu), ipcmd, 1, 1, 0 },
{ "ip6", ip6help, CMPL(ta) (char **)ip6tab, sizeof(Menu), ipcmd, 1, 1, 0 },
{ "mpls", mplshelp, CMPL(ta) (char **)mplstab, sizeof(Menu), ipcmd, 1, 1, 0 },
{ "ddb", ddbhelp, CMPL(ta) (char **)ddbtab, sizeof(Menu), ipcmd, 1, 1, 0 },
{ "pipex", pipexhelp, CMPL(ta) (char **)pipextab, sizeof(Menu), ipcmd, 1, 1, 0 },
{ "flush", flushhelp, CMPL(ta) (char **)flushlist, sizeof(Menu), flushcmd, 1, 0, 0 },
{ "enable", enablehelp, CMPL0 0, 0, enable, 0, 0, 0 },
{ "disable", disablehelp, CMPL0 0, 0, disable, 1, 0, 0 },
{ "route", routehelp, CMPL0 0, 0, route, 1, 1, 0 },
{ "pf", pfhelp, CMPL(t) (char **)ctl_pf, ssctl, ctlhandler, 1, 0, 1 },
{ "ospf", ospfhelp, CMPL(t) (char **)ctl_ospf, ssctl, ctlhandler, 1, 0, 1 },
{ "ospf6", ospf6help, CMPL(t) (char **)ctl_ospf6, ssctl, ctlhandler, 1, 0, 1 },
{ "bgp", bgphelp, CMPL(t) (char **)ctl_bgp, ssctl, ctlhandler, 1, 0, 1 },
{ "rip", riphelp, CMPL(t) (char **)ctl_rip, ssctl, ctlhandler, 1, 0, 1 },
{ "ldp", ldphelp, CMPL(t) (char **)ctl_ldp, ssctl, ctlhandler, 1, 0, 1 },
{ "relay", relayhelp, CMPL(t) (char **)ctl_relay, ssctl, ctlhandler, 1, 0, 1 },
{ "ipsec", ipsechelp, CMPL(t) (char **)ctl_ipsec, ssctl, ctlhandler, 1, 0, 1 },
{ "ike", ikehelp, CMPL(t) (char **)ctl_ike, ssctl, ctlhandler, 1, 0, 1 },
{ "dvmrp", dvmrphelp, CMPL(t) (char **)ctl_dvmrp, ssctl, ctlhandler, 1, 0, 1 },
{ "rtadv", rtadvhelp, CMPL(t) (char **)ctl_rtadv, ssctl, ctlhandler, 1, 0, 1 },
{ "sasync", sasynchelp, CMPL(t) (char **)ctl_sasync, ssctl, ctlhandler, 1, 0, 1 },
{ "dhcp", dhcphelp, CMPL(t) (char **)ctl_dhcp, ssctl, ctlhandler, 1, 0, 1 },
{ "snmp", snmphelp, CMPL(t) (char **)ctl_snmp, ssctl, ctlhandler, 1, 0, 1 },
{ "ldap", ldaphelp, CMPL(t) (char **)ctl_ldap, ssctl, ctlhandler, 1, 0, 1 },
{ "smtp", smtphelp, CMPL(t) (char **)ctl_smtp, ssctl, ctlhandler, 1, 0, 1 },
{ "sshd", sshdhelp, CMPL(t) (char **)ctl_sshd, ssctl, ctlhandler, 1, 0, 1 },
{ "ntp", ntphelp, CMPL(t) (char **)ctl_ntp, ssctl, ctlhandler, 1, 0, 1 },
{ "nppp", nppphelp, CMPL(t) (char **)ctl_nppp, ssctl, ctlhandler, 1, 0, 1 },
{ "ifstate", ifstatehelp, CMPL(t) (char **)ctl_ifstate, ssctl, ctlhandler, 1, 0, 1 },
{ "ftp-proxy", ftpproxyhelp, CMPL(t) (char **)ctl_ftpproxy, ssctl, ctlhandler, 1, 0, 1 },
{ "tftp-proxy", tftpproxyhelp, CMPL(t) (char **)ctl_tftpproxy, ssctl, ctlhandler, 1, 0, 1 },
{ "tftp", tftphelp, CMPL(t) (char **)ctl_tftp, ssctl, ctlhandler, 1, 0, 1 },
{ "dns", dnshelp, CMPL(t) (char **)ctl_dns, ssctl, ctlhandler, 1, 0, 1 },
{ "inet", inethelp, CMPL(t) (char **)ctl_inet, ssctl, ctlhandler, 1, 0, 1 },
{ "ping", pinghelp, CMPL0 0, 0, ping, 0, 0, 0 },
{ "ping6", ping6help, CMPL0 0, 0, ping6, 0, 0, 0 },
{ "traceroute", tracerthelp, CMPL0 0, 0, traceroute, 0, 0, 0 },
{ "traceroute6", tracert6help, CMPL0 0, 0, traceroute6, 0, 0, 0 },
{ "ssh", sshhelp, CMPL0 0, 0, ssh, 0, 0, 0 },
{ "telnet", telnethelp, CMPL0 0, 0, telnet, 0, 0, 0 },
{ "reboot", nreboothelp, CMPL0 0, 0, nreboot, 1, 0, 0 },
{ "halt", halthelp, CMPL0 0, 0, halt, 1, 0, 0 },
{ "write-config", savehelp, CMPL0 0, 0, wr_startup, 1, 0, 0 },
{ "verbose", verbosehelp, CMPL0 0, 0, doverbose, 0, 1, 0 },
{ "editing", editinghelp, CMPL0 0, 0, doediting, 0, 1, 0 },
{ "who", whohelp, CMPL0 0, 0, who, 0, 0, 0 },
{ "!", shellhelp, CMPL0 0, 0, shell, 1, 0, 0 },
{ "?", helphelp, CMPL(C) 0, 0, help, 0, 0, 0 },
{ "quit", quithelp, CMPL0 0, 0, quit, 0, 0, 0 },
{ "help", 0, CMPL(C) 0, 0, help, 0, 0, 0 },
{ 0, 0, CMPL0 0, 0, 0, 0, 0, 0 }
};
/*
* These commands escape ambiguous check and help listings
*/
static Command cmdtab2[] = {
{ "config", 0, CMPL0 0, 0, notvalid, 0, 0, 0 },
{ 0, 0, CMPL0 0, 0, 0, 0, 0, 0 }
};
Command *
getcmd(char *name)
{
Command *cm;
if ((cm = (Command *) genget(name, (char **) cmdtab, sizeof(Command))))
return cm;
return (Command *) genget(name, (char **) cmdtab2, sizeof(Command));
}
void
makeargv()
{
char *cp, *cp2, *base, c;
char **argp = margv;
margc = 0;
cp = line;
if (*cp == '!') { /* Special case shell escape */
/* save for shell command */
strlcpy(saveline, line, sizeof(saveline));
*argp++ = "!"; /* No room in string to get this */
margc++;
cp++;
}
while ((c = *cp)) {
int inquote = 0;
while (isspace(c))
c = *++cp;
if (c == '\0')
break;
*argp++ = cp;
cursor_argc = margc += 1;
base = cp;
for (cursor_argo = 0, cp2 = cp; c != '\0';
cursor_argo = (cp + 1) - base, c = *++cp) {
if (inquote) {
if (c == inquote) {
inquote = 0;
continue;
}
} else {
if (c == '\\') {
if ((c = *++cp) == '\0')
break;
} else if (c == '"') {
inquote = '"';
continue;
} else if (c == '\'') {
inquote = '\'';
continue;
} else if (isspace(c)) {
cursor_argo = 0;
break;
}
}
*cp2++ = c;
}
*cp2 = '\0';
if (c == '\0') {
cursor_argc--;
break;
}
cp++;
}
*argp++ = 0;