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8282a07e16
freebsd/usr.sbin/ppp/command.c
Brian Somers 63258dccc5 o Create `struct hdlc' - a part of struct physical. 
o Move our LCP report timer into struct hdlc - it's really
  a hdlc timer (fcs errors etc).
o Make `show hdlc' require context and make the output more
  friendly.
o Remove all non-const globals from hdlc.c
o Output peer-rejected protocols by name - not just ones
  that we reject.
1998-02-18 19:35:59 +00:00

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/*
* PPP User command processing module
*
* Written by Toshiharu OHNO (tony-o@iij.ad.jp)
*
* Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the Internet Initiative Japan, Inc. The name of the
* IIJ may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* $Id: command.c,v 1.131.2.26 1998/02/18 19:35:14 brian Exp $
*
*/
#include <sys/param.h>
#include <netinet/in_systm.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <arpa/inet.h>
#include <sys/socket.h>
#include <net/route.h>
#include <netdb.h>
#ifndef NOALIAS
#include <alias.h>
#endif
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
#include "command.h"
#include "mbuf.h"
#include "log.h"
#include "defs.h"
#include "timer.h"
#include "fsm.h"
#include "lcp.h"
#include "iplist.h"
#include "throughput.h"
#include "ipcp.h"
#include "modem.h"
#include "filter.h"
#ifndef NOALIAS
#include "alias_cmd.h"
#endif
#include "hdlc.h"
#include "loadalias.h"
#include "vars.h"
#include "systems.h"
#include "bundle.h"
#include "main.h"
#include "route.h"
#include "ccp.h"
#include "ip.h"
#include "slcompress.h"
#include "auth.h"
#include "async.h"
#include "link.h"
#include "descriptor.h"
#include "physical.h"
#include "server.h"
#include "prompt.h"
#include "chat.h"
#include "datalink.h"
struct in_addr ifnetmask;
static const char *HIDDEN = "********";
static int ShowCommand(struct cmdargs const *);
static int TerminalCommand(struct cmdargs const *);
static int QuitCommand(struct cmdargs const *);
static int CloseCommand(struct cmdargs const *);
static int DialCommand(struct cmdargs const *);
static int DownCommand(struct cmdargs const *);
static int AllowCommand(struct cmdargs const *);
static int SetCommand(struct cmdargs const *);
static int LinkCommand(struct cmdargs const *);
static int AddCommand(struct cmdargs const *);
static int DeleteCommand(struct cmdargs const *);
static int BgShellCommand(struct cmdargs const *);
static int FgShellCommand(struct cmdargs const *);
#ifndef NOALIAS
static int AliasCommand(struct cmdargs const *);
static int AliasEnable(struct cmdargs const *);
static int AliasOption(struct cmdargs const *);
#endif
static int
HelpCommand(struct cmdargs const *arg)
{
struct cmdtab const *cmd;
int n, cmax, dmax, cols;
if (arg->argc > 0) {
for (cmd = arg->cmdtab; cmd->name; cmd++)
if (strcasecmp(cmd->name, *arg->argv) == 0 &&
(cmd->lauth & VarLocalAuth)) {
prompt_Printf(&prompt, "%s\n", cmd->syntax);
return 0;
}
return -1;
}
cmax = dmax = 0;
for (cmd = arg->cmdtab; cmd->func; cmd++)
if (cmd->name && (cmd->lauth & VarLocalAuth)) {
if ((n = strlen(cmd->name)) > cmax)
cmax = n;
if ((n = strlen(cmd->helpmes)) > dmax)
dmax = n;
}
cols = 80 / (dmax + cmax + 3);
n = 0;
for (cmd = arg->cmdtab; cmd->func; cmd++)
if (cmd->name && (cmd->lauth & VarLocalAuth)) {
prompt_Printf(&prompt, " %-*.*s: %-*.*s",
cmax, cmax, cmd->name, dmax, dmax, cmd->helpmes);
if (++n % cols == 0)
prompt_Printf(&prompt, "\n");
}
if (n % cols != 0)
prompt_Printf(&prompt, "\n");
return 0;
}
int
IsInteractive(int Display)
{
const char *m = NULL;
if (mode & MODE_DDIAL)
m = "direct dial";
else if (mode & MODE_BACKGROUND)
m = "background";
else if (mode & MODE_AUTO)
m = "auto";
else if (mode & MODE_DIRECT)
m = "direct";
else if (mode & MODE_DEDICATED)
m = "dedicated";
else if (mode & MODE_INTER)
m = "interactive";
if (m) {
if (Display)
prompt_Printf(&prompt, "Working in %s mode\n", m);
}
return mode & MODE_INTER;
}
static int
DialCommand(struct cmdargs const *arg)
{
int res;
if (LcpInfo.fsm.state > ST_CLOSED) {
prompt_Printf(&prompt, "LCP state is [%s]\n",
StateNames[LcpInfo.fsm.state]);
return 0;
}
if ((mode & MODE_DAEMON) && !(mode & MODE_AUTO)) {
LogPrintf(LogWARN,
"Manual dial is only available in auto and interactive mode\n");
return 1;
}
if (arg->argc > 0 && (res = LoadCommand(arg)) != 0)
return res;
bundle_Open(arg->bundle, NULL);
return 0;
}
static int
SetLoopback(struct cmdargs const *arg)
{
if (arg->argc == 1)
if (!strcasecmp(*arg->argv, "on")) {
VarLoopback = 1;
return 0;
}
else if (!strcasecmp(*arg->argv, "off")) {
VarLoopback = 0;
return 0;
}
return -1;
}
static int
ShellCommand(struct cmdargs const *arg, int bg)
{
const char *shell;
pid_t shpid;
int argc;
char *argv[MAXARGS];
#ifdef SHELL_ONLY_INTERACTIVELY
/* we're only allowed to shell when we run ppp interactively */
if (mode != MODE_INTER) {
LogPrintf(LogWARN, "Can only start a shell in interactive mode\n");
return 1;
}
#endif
#ifdef NO_SHELL_IN_AUTO_INTERACTIVE
/*
* we want to stop shell commands when we've got a telnet connection to an
* auto mode ppp
*/
if (prompt_Active(&prompt) && !(mode & MODE_INTER)) {
LogPrintf(LogWARN, "Shell is not allowed interactively in auto mode\n");
return 1;
}
#endif
if (arg->argc == 0)
if (!(mode & MODE_INTER)) {
if (prompt_Active(&prompt))
LogPrintf(LogWARN, "Can't start an interactive shell from"
" a telnet session\n");
else
LogPrintf(LogWARN, "Can only start an interactive shell in"
" interactive mode\n");
return 1;
} else if (bg) {
LogPrintf(LogWARN, "Can only start an interactive shell in"
" the foreground mode\n");
return 1;
}
if ((shell = getenv("SHELL")) == 0)
shell = _PATH_BSHELL;
if ((shpid = fork()) == 0) {
int dtablesize, i, fd;
TermTimerService();
signal(SIGINT, SIG_DFL);
signal(SIGQUIT, SIG_DFL);
signal(SIGTERM, SIG_DFL);
signal(SIGHUP, SIG_DFL);
signal(SIGALRM, SIG_DFL);
if (prompt_Active(&prompt))
fd = prompt.fd_out;
else if ((fd = open("/dev/null", O_RDWR)) == -1) {
LogPrintf(LogALERT, "Failed to open /dev/null: %s\n", strerror(errno));
exit(1);
}
for (i = 0; i < 3; i++)
dup2(fd, i);
for (dtablesize = getdtablesize(), i = 3; i < dtablesize; i++)
close(i);
prompt_TtyOldMode(&prompt);
setuid(geteuid());
if (arg->argc > 0) {
/* substitute pseudo args */
argv[0] = strdup(arg->argv[0]);
for (argc = 1; argc < arg->argc; argc++) {
if (strcasecmp(arg->argv[argc], "HISADDR") == 0)
argv[argc] = strdup(inet_ntoa(IpcpInfo.his_ipaddr));
else if (strcasecmp(arg->argv[argc], "INTERFACE") == 0)
argv[argc] = strdup(arg->bundle->ifname);
else if (strcasecmp(arg->argv[argc], "MYADDR") == 0)
argv[argc] = strdup(inet_ntoa(IpcpInfo.want_ipaddr));
else
argv[argc] = strdup(arg->argv[argc]);
}
argv[argc] = NULL;
if (bg) {
pid_t p;
p = getpid();
if (daemon(1, 1) == -1) {
LogPrintf(LogERROR, "%d: daemon: %s\n", p, strerror(errno));
exit(1);
}
} else if (prompt_Active(&prompt))
printf("ppp: Pausing until %s finishes\n", arg->argv[0]);
execvp(argv[0], argv);
} else {
if (prompt_Active(&prompt))
printf("ppp: Pausing until %s finishes\n", shell);
execl(shell, shell, NULL);
}
LogPrintf(LogWARN, "exec() of %s failed\n",
arg->argc > 0 ? arg->argv[0] : shell);
exit(255);
}
if (shpid == (pid_t) - 1) {
LogPrintf(LogERROR, "Fork failed: %s\n", strerror(errno));
} else {
int status;
waitpid(shpid, &status, 0);
}
prompt_TtyCommandMode(&prompt);
return (0);
}
static int
BgShellCommand(struct cmdargs const *arg)
{
if (arg->argc == 0)
return -1;
return ShellCommand(arg, 1);
}
static int
FgShellCommand(struct cmdargs const *arg)
{
return ShellCommand(arg, 0);
}
static struct cmdtab const Commands[] = {
{"accept", NULL, AcceptCommand, LOCAL_AUTH,
"accept option request", "accept option .."},
{"add", NULL, AddCommand, LOCAL_AUTH,
"add route", "add dest mask gateway", NULL},
{"add!", NULL, AddCommand, LOCAL_AUTH,
"add or change route", "add! dest mask gateway", (void *)1},
{"allow", "auth", AllowCommand, LOCAL_AUTH,
"Allow ppp access", "allow users|modes ...."},
{"bg", "!bg", BgShellCommand, LOCAL_AUTH,
"Run a background command", "[!]bg command"},
{"close", NULL, CloseCommand, LOCAL_AUTH | LOCAL_CX_OPT,
"Close connection", "close"},
{"delete", NULL, DeleteCommand, LOCAL_AUTH,
"delete route", "delete dest", NULL},
{"delete!", NULL, DeleteCommand, LOCAL_AUTH,
"delete a route if it exists", "delete! dest", (void *)1},
{"deny", NULL, DenyCommand, LOCAL_AUTH,
"Deny option request", "deny option .."},
{"dial", "call", DialCommand, LOCAL_AUTH,
"Dial and login", "dial|call [remote]"},
{"disable", NULL, DisableCommand, LOCAL_AUTH,
"Disable option", "disable option .."},
{"display", NULL, DisplayCommand, LOCAL_AUTH,
"Display option configs", "display"},
{"enable", NULL, EnableCommand, LOCAL_AUTH,
"Enable option", "enable option .."},
{"passwd", NULL, LocalAuthCommand, LOCAL_NO_AUTH,
"Password for manipulation", "passwd LocalPassword"},
{"link", NULL, LinkCommand, LOCAL_AUTH,
"Link specific commands", "link name command ..."},
{"load", NULL, LoadCommand, LOCAL_AUTH,
"Load settings", "load [remote]"},
{"save", NULL, SaveCommand, LOCAL_AUTH,
"Save settings", "save"},
{"set", "setup", SetCommand, LOCAL_AUTH | LOCAL_CX_OPT,
"Set parameters", "set[up] var value"},
{"shell", "!", FgShellCommand, LOCAL_AUTH,
"Run a subshell", "shell|! [sh command]"},
{"show", NULL, ShowCommand, LOCAL_AUTH,
"Show status and stats", "show var"},
{"term", NULL, TerminalCommand, LOCAL_AUTH | LOCAL_CX,
"Enter terminal mode", "term"},
#ifndef NOALIAS
{"alias", NULL, AliasCommand, LOCAL_AUTH,
"alias control", "alias option [yes|no]"},
#endif
{"quit", "bye", QuitCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
"Quit PPP program", "quit|bye [all]"},
{"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
"Display this message", "help|? [command]", Commands},
{NULL, "down", DownCommand, LOCAL_AUTH | LOCAL_CX,
"Generate down event", "down"},
{NULL, NULL, NULL},
};
static int
ShowLoopback(struct cmdargs const *arg)
{
prompt_Printf(&prompt, "Local loopback is %s\n", VarLoopback ? "on" : "off");
return 0;
}
static int
ShowLogLevel(struct cmdargs const *arg)
{
int i;
prompt_Printf(&prompt, "Log: ");
for (i = LogMIN; i <= LogMAX; i++)
if (LogIsKept(i) & LOG_KEPT_SYSLOG)
prompt_Printf(&prompt, " %s", LogName(i));
prompt_Printf(&prompt, "\nLocal:");
for (i = LogMIN; i <= LogMAX; i++)
if (LogIsKept(i) & LOG_KEPT_LOCAL)
prompt_Printf(&prompt, " %s", LogName(i));
prompt_Printf(&prompt, "\n");
return 0;
}
static int
ShowEscape(struct cmdargs const *arg)
{
if (arg->cx->physical->async.cfg.EscMap[32]) {
int code, bit;
char *sep = "";
for (code = 0; code < 32; code++)
if (arg->cx->physical->async.cfg.EscMap[code])
for (bit = 0; bit < 8; bit++)
if (arg->cx->physical->async.cfg.EscMap[code] & (1 << bit)) {
prompt_Printf(&prompt, "%s0x%02x", sep, (code << 3) + bit);
sep = ", ";
}
prompt_Printf(&prompt, "\n");
}
return 0;
}
static int
ShowTimeout(struct cmdargs const *arg)
{
int remaining;
prompt_Printf(&prompt, " Idle Timer: %d secs LQR Timer: %d secs"
" Retry Timer: %d secs\n", VarIdleTimeout, VarLqrTimeout,
VarRetryTimeout);
remaining = RemainingIdleTime();
if (remaining != -1)
prompt_Printf(&prompt, " %d secs remaining\n", remaining);
return 0;
}
static int
ShowStopped(struct cmdargs const *arg)
{
prompt_Printf(&prompt, " Stopped Timer: LCP: ");
if (!LcpInfo.fsm.StoppedTimer.load)
prompt_Printf(&prompt, "Disabled");
else
prompt_Printf(&prompt, "%ld secs",
LcpInfo.fsm.StoppedTimer.load / SECTICKS);
prompt_Printf(&prompt, ", IPCP: ");
if (!IpcpInfo.fsm.StoppedTimer.load)
prompt_Printf(&prompt, "Disabled");
else
prompt_Printf(&prompt, "%ld secs",
IpcpInfo.fsm.StoppedTimer.load / SECTICKS);
prompt_Printf(&prompt, ", CCP: ");
if (!CcpInfo.fsm.StoppedTimer.load)
prompt_Printf(&prompt, "Disabled");
else
prompt_Printf(&prompt, "%ld secs",
CcpInfo.fsm.StoppedTimer.load / SECTICKS);
prompt_Printf(&prompt, "\n");
return 0;
}
static int
ShowAuthKey(struct cmdargs const *arg)
{
prompt_Printf(&prompt, "AuthName = %s\n", VarAuthName);
prompt_Printf(&prompt, "AuthKey = %s\n", HIDDEN);
#ifdef HAVE_DES
prompt_Printf(&prompt, "Encrypt = %s\n", VarMSChap ? "MSChap" : "MD5" );
#endif
return 0;
}
static int
ShowVersion(struct cmdargs const *arg)
{
prompt_Printf(&prompt, "%s - %s \n", VarVersion, VarLocalVersion);
return 0;
}
static int
ShowInitialMRU(struct cmdargs const *arg)
{
prompt_Printf(&prompt, " Initial MRU: %d\n", VarMRU);
return 0;
}
static int
ShowPreferredMTU(struct cmdargs const *arg)
{
if (VarPrefMTU)
prompt_Printf(&prompt, " Preferred MTU: %d\n", VarPrefMTU);
else
prompt_Printf(&prompt, " Preferred MTU: unspecified\n");
return 0;
}
static int
ShowReconnect(struct cmdargs const *arg)
{
prompt_Printf(&prompt, "%s: Reconnect Timer: %d, %d tries\n",
arg->cx->name, arg->cx->cfg.reconnect_timeout,
arg->cx->cfg.max_reconnect);
return 0;
}
static int
ShowRedial(struct cmdargs const *arg)
{
prompt_Printf(&prompt, " Redial Timer: ");
if (arg->cx->cfg.dial_timeout >= 0)
prompt_Printf(&prompt, " %d seconds, ", arg->cx->cfg.dial_timeout);
else
prompt_Printf(&prompt, " Random 0 - %d seconds, ", DIAL_TIMEOUT);
prompt_Printf(&prompt, " Redial Next Timer: ");
if (arg->cx->cfg.dial_next_timeout >= 0)
prompt_Printf(&prompt, " %d seconds, ", arg->cx->cfg.dial_next_timeout);
else
prompt_Printf(&prompt, " Random 0 - %d seconds, ", DIAL_TIMEOUT);
if (arg->cx->cfg.max_dial)
prompt_Printf(&prompt, "%d dial tries", arg->cx->cfg.max_dial);
prompt_Printf(&prompt, "\n");
return 0;
}
#ifndef NOMSEXT
static int
ShowMSExt(struct cmdargs const *arg)
{
prompt_Printf(&prompt, " MS PPP extention values \n");
prompt_Printf(&prompt, " Primary NS : %s\n",
inet_ntoa(IpcpInfo.ns_entries[0]));
prompt_Printf(&prompt, " Secondary NS : %s\n",
inet_ntoa(IpcpInfo.ns_entries[1]));
prompt_Printf(&prompt, " Primary NBNS : %s\n",
inet_ntoa(IpcpInfo.nbns_entries[0]));
prompt_Printf(&prompt, " Secondary NBNS : %s\n",
inet_ntoa(IpcpInfo.nbns_entries[1]));
return 0;
}
#endif
static struct cmdtab const ShowCommands[] = {
{"afilter", NULL, ShowAfilter, LOCAL_AUTH,
"Show keep-alive filters", "show afilter option .."},
{"auth", NULL, ShowAuthKey, LOCAL_AUTH,
"Show auth details", "show auth"},
{"ccp", NULL, ReportCcpStatus, LOCAL_AUTH,
"Show CCP status", "show cpp"},
{"compress", NULL, ReportCompress, LOCAL_AUTH,
"Show compression stats", "show compress"},
{"dfilter", NULL, ShowDfilter, LOCAL_AUTH,
"Show Demand filters", "show dfilteroption .."},
{"escape", NULL, ShowEscape, LOCAL_AUTH | LOCAL_CX,
"Show escape characters", "show escape"},
{"hdlc", NULL, hdlc_ReportStatus, LOCAL_AUTH | LOCAL_CX,
"Show HDLC errors", "show hdlc"},
{"ifilter", NULL, ShowIfilter, LOCAL_AUTH,
"Show Input filters", "show ifilter option .."},
{"ipcp", NULL, ReportIpcpStatus, LOCAL_AUTH,
"Show IPCP status", "show ipcp"},
{"lcp", NULL, ReportLcpStatus, LOCAL_AUTH,
"Show LCP status", "show lcp"},
{"links", "link", bundle_ShowLinks, LOCAL_AUTH,
"Show available link names", "show links"},
{"loopback", NULL, ShowLoopback, LOCAL_AUTH,
"Show loopback setting", "show loopback"},
{"log", NULL, ShowLogLevel, LOCAL_AUTH,
"Show log levels", "show log"},
{"mem", NULL, ShowMemMap, LOCAL_AUTH,
"Show memory map", "show mem"},
{"modem", NULL, modem_ShowStatus, LOCAL_AUTH | LOCAL_CX,
"Show modem setups", "show modem"},
{"mru", NULL, ShowInitialMRU, LOCAL_AUTH,
"Show Initial MRU", "show mru"},
#ifndef NOMSEXT
{"msext", NULL, ShowMSExt, LOCAL_AUTH,
"Show MS PPP extentions", "show msext"},
#endif
{"mtu", NULL, ShowPreferredMTU, LOCAL_AUTH,
"Show Preferred MTU", "show mtu"},
{"ofilter", NULL, ShowOfilter, LOCAL_AUTH,
"Show Output filters", "show ofilter option .."},
{"proto", NULL, Physical_ReportProtocolStatus, LOCAL_AUTH,
"Show protocol summary", "show proto"},
{"reconnect", NULL, ShowReconnect, LOCAL_AUTH | LOCAL_CX,
"Show reconnect timer", "show reconnect"},
{"redial", NULL, ShowRedial, LOCAL_AUTH | LOCAL_CX,
"Show Redial timeout", "show redial"},
{"route", NULL, ShowRoute, LOCAL_AUTH,
"Show routing table", "show route"},
{"timeout", NULL, ShowTimeout, LOCAL_AUTH,
"Show Idle timeout", "show timeout"},
{"stopped", NULL, ShowStopped, LOCAL_AUTH,
"Show STOPPED timeout", "show stopped"},
{"version", NULL, ShowVersion, LOCAL_NO_AUTH | LOCAL_AUTH,
"Show version string", "show version"},
{"help", "?", HelpCommand, LOCAL_NO_AUTH | LOCAL_AUTH,
"Display this message", "show help|? [command]", ShowCommands},
{NULL, NULL, NULL},
};
static struct cmdtab const *
FindCommand(struct cmdtab const *cmds, const char *str, int *pmatch)
{
int nmatch;
int len;
struct cmdtab const *found;
found = NULL;
len = strlen(str);
nmatch = 0;
while (cmds->func) {
if (cmds->name && strncasecmp(str, cmds->name, len) == 0) {
if (cmds->name[len] == '\0') {
*pmatch = 1;
return cmds;
}
nmatch++;
found = cmds;
} else if (cmds->alias && strncasecmp(str, cmds->alias, len) == 0) {
if (cmds->alias[len] == '\0') {
*pmatch = 1;
return cmds;
}
nmatch++;
found = cmds;
}
cmds++;
}
*pmatch = nmatch;
return found;
}
static int
FindExec(struct bundle *bundle, struct cmdtab const *cmds, int argc,
char const *const *argv, const char *prefix, struct datalink *cx)
{
struct cmdtab const *cmd;
int val = 1;
int nmatch;
struct cmdargs arg;
cmd = FindCommand(cmds, *argv, &nmatch);
if (nmatch > 1)
LogPrintf(LogWARN, "%s%s: Ambiguous command\n", prefix, *argv);
else if (cmd && (cmd->lauth & VarLocalAuth)) {
if ((cmd->lauth & LOCAL_CX) && !cx)
/* We've got no context, but we require it */
cx = bundle2datalink(bundle, NULL);
if ((cmd->lauth & LOCAL_CX) && !cx)
LogPrintf(LogWARN, "%s%s: No context (use the `link' command)\n",
prefix, *argv);
else {
if (cx && !(cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) {
LogPrintf(LogWARN, "%s%s: Redundant context (%s) ignored\n",
prefix, *argv, cx->name);
cx = NULL;
}
arg.cmdtab = cmds;
arg.cmd = cmd;
arg.argc = argc-1;
arg.argv = argv+1;
arg.bundle = bundle;
arg.cx = cx;
val = (cmd->func) (&arg);
}
} else
LogPrintf(LogWARN, "%s%s: Invalid command\n", prefix, *argv);
if (val == -1)
LogPrintf(LogWARN, "Usage: %s\n", cmd->syntax);
else if (val)
LogPrintf(LogWARN, "%s%s: Failed %d\n", prefix, *argv, val);
return val;
}
void
InterpretCommand(char *buff, int nb, int *argc, char ***argv)
{
static char *vector[MAXARGS];
char *cp;
if (nb > 0) {
cp = buff + strcspn(buff, "\r\n");
if (cp)
*cp = '\0';
*argc = MakeArgs(buff, vector, VECSIZE(vector));
*argv = vector;
} else
*argc = 0;
}
static int
arghidden(int argc, char const *const *argv, int n)
{
/* Is arg n of the given command to be hidden from the log ? */
/* set authkey xxxxx */
/* set key xxxxx */
if (n == 2 && !strncasecmp(argv[0], "se", 2) &&
(!strncasecmp(argv[1], "authk", 5) || !strncasecmp(argv[1], "ke", 2)))
return 1;
/* passwd xxxxx */
if (n == 1 && !strncasecmp(argv[0], "p", 1))
return 1;
return 0;
}
void
RunCommand(struct bundle *bundle, int argc, char const *const *argv,
const char *label)
{
if (argc > 0) {
if (LogIsKept(LogCOMMAND)) {
static char buf[LINE_LEN];
int f, n;
*buf = '\0';
if (label) {
strncpy(buf, label, sizeof buf - 3);
buf[sizeof buf - 3] = '\0';
strcat(buf, ": ");
}
n = strlen(buf);
for (f = 0; f < argc; f++) {
if (n < sizeof buf - 1 && f)
buf[n++] = ' ';
if (arghidden(argc, argv, f))
strncpy(buf+n, HIDDEN, sizeof buf - n - 1);
else
strncpy(buf+n, argv[f], sizeof buf - n - 1);
n += strlen(buf+n);
}
LogPrintf(LogCOMMAND, "%s\n", buf);
}
FindExec(bundle, Commands, argc, argv, "", NULL);
}
}
void
DecodeCommand(struct bundle *bundle, char *buff, int nb, const char *label)
{
int argc;
char **argv;
InterpretCommand(buff, nb, &argc, &argv);
RunCommand(bundle, argc, (char const *const *)argv, label);
}
static int
ShowCommand(struct cmdargs const *arg)
{
if (!prompt_Active(&prompt))
LogPrintf(LogWARN, "show: Cannot show without a prompt\n");
else if (arg->argc > 0)
FindExec(arg->bundle, ShowCommands, arg->argc, arg->argv, "show ", arg->cx);
else if (prompt_Active(&prompt))
prompt_Printf(&prompt, "Use ``show ?'' to get a list.\n");
else
LogPrintf(LogWARN, "show command must have arguments\n");
return 0;
}
static int
TerminalCommand(struct cmdargs const *arg)
{
if (LcpInfo.fsm.state > ST_CLOSED) {
prompt_Printf(&prompt, "LCP state is [%s]\n",
StateNames[LcpInfo.fsm.state]);
return 1;
}
if (!IsInteractive(1))
return (1);
datalink_Up(arg->cx, 0, 0);
prompt_Printf(&prompt, "Entering terminal mode.\n");
prompt_Printf(&prompt, "Type `~?' for help.\n");
prompt_TtyTermMode(&prompt, arg->cx);
return 0;
}
static int
QuitCommand(struct cmdargs const *arg)
{
if (prompt_Active(&prompt)) {
prompt_Drop(&prompt, 1);
if ((mode & MODE_INTER) ||
(arg->argc > 0 && !strcasecmp(*arg->argv, "all") &&
(VarLocalAuth & LOCAL_AUTH)))
Cleanup(EX_NORMAL);
}
return 0;
}
static int
CloseCommand(struct cmdargs const *arg)
{
bundle_Close(LcpInfo.fsm.bundle, arg->cx ? arg->cx->name : NULL, 1);
return 0;
}
static int
DownCommand(struct cmdargs const *arg)
{
link_Close(&arg->cx->physical->link, arg->bundle, 0, 1);
return 0;
}
static int
SetModemSpeed(struct cmdargs const *arg)
{
long speed;
char *end;
if (arg->argc > 0 && **arg->argv) {
if (arg->argc > 1) {
LogPrintf(LogWARN, "SetModemSpeed: Too many arguments");
return -1;
}
if (strcasecmp(*arg->argv, "sync") == 0) {
Physical_SetSync(arg->cx->physical);
return 0;
}
end = NULL;
speed = strtol(*arg->argv, &end, 10);
if (*end) {
LogPrintf(LogWARN, "SetModemSpeed: Bad argument \"%s\"", *arg->argv);
return -1;
}
if (Physical_SetSpeed(arg->cx->physical, speed))
return 0;
LogPrintf(LogWARN, "%s: Invalid speed\n", *arg->argv);
} else
LogPrintf(LogWARN, "SetModemSpeed: No speed specified\n");
return -1;
}
static int
SetReconnect(struct cmdargs const *arg)
{
if (arg->argc == 2) {
arg->cx->cfg.reconnect_timeout = atoi(arg->argv[0]);
arg->cx->cfg.max_reconnect = (mode & MODE_DIRECT) ? 0 : atoi(arg->argv[1]);
return 0;
}
return -1;
}
static int
SetRedialTimeout(struct cmdargs const *arg)
{
int timeout;
int tries;
char *dot;
if (arg->argc == 1 || arg->argc == 2) {
if (strncasecmp(arg->argv[0], "random", 6) == 0 &&
(arg->argv[0][6] == '\0' || arg->argv[0][6] == '.')) {
arg->cx->cfg.dial_timeout = -1;
randinit();
} else {
timeout = atoi(arg->argv[0]);
if (timeout >= 0)
arg->cx->cfg.dial_timeout = timeout;
else {
LogPrintf(LogWARN, "Invalid redial timeout\n");
return -1;
}
}
dot = strchr(arg->argv[0], '.');
if (dot) {
if (strcasecmp(++dot, "random") == 0) {
arg->cx->cfg.dial_next_timeout = -1;
randinit();
} else {
timeout = atoi(dot);
if (timeout >= 0)
arg->cx->cfg.dial_next_timeout = timeout;
else {
LogPrintf(LogWARN, "Invalid next redial timeout\n");
return -1;
}
}
} else
/* Default next timeout */
arg->cx->cfg.dial_next_timeout = DIAL_NEXT_TIMEOUT;
if (arg->argc == 2) {
tries = atoi(arg->argv[1]);
if (tries >= 0) {
arg->cx->cfg.max_dial = tries;
} else {
LogPrintf(LogWARN, "Invalid retry value\n");
return 1;
}
}
return 0;
}
return -1;
}
static int
SetStoppedTimeout(struct cmdargs const *arg)
{
LcpInfo.fsm.StoppedTimer.load = 0;
IpcpInfo.fsm.StoppedTimer.load = 0;
CcpInfo.fsm.StoppedTimer.load = 0;
if (arg->argc <= 3) {
if (arg->argc > 0) {
LcpInfo.fsm.StoppedTimer.load = atoi(arg->argv[0]) * SECTICKS;
if (arg->argc > 1) {
IpcpInfo.fsm.StoppedTimer.load = atoi(arg->argv[1]) * SECTICKS;
if (arg->argc > 2)
CcpInfo.fsm.StoppedTimer.load = atoi(arg->argv[2]) * SECTICKS;
}
}
return 0;
}
return -1;
}
#define ismask(x) \
(*x == '0' && strlen(x) == 4 && strspn(x+1, "0123456789.") == 3)
static int
SetServer(struct cmdargs const *arg)
{
int res = -1;
if (arg->argc > 0 && arg->argc < 4) {
const char *port, *passwd, *mask;
/* What's what ? */
port = arg->argv[0];
if (arg->argc == 2)
if (ismask(arg->argv[1])) {
passwd = NULL;
mask = arg->argv[1];
} else {
passwd = arg->argv[1];
mask = NULL;
}
else if (arg->argc == 3) {
passwd = arg->argv[1];
mask = arg->argv[2];
if (!ismask(mask))
return -1;
} else
passwd = mask = NULL;
if (passwd == NULL)
VarHaveLocalAuthKey = 0;
else {
strncpy(VarLocalAuthKey, passwd, sizeof VarLocalAuthKey - 1);
VarLocalAuthKey[sizeof VarLocalAuthKey - 1] = '\0';
VarHaveLocalAuthKey = 1;
}
LocalAuthInit();
if (strcasecmp(port, "none") == 0) {
if (mask != NULL || passwd != NULL)
return -1;
if (ServerClose())
LogPrintf(LogPHASE, "Disabled server port.\n");
res = 0;
} else if (*port == '/') {
mode_t imask;
if (mask != NULL) {
unsigned m;
if (sscanf(mask, "%o", &m) == 1)
imask = m;
else
return -1;
} else
imask = (mode_t)-1;
res = ServerLocalOpen(port, imask);
} else {
int iport;
if (mask != NULL)
return -1;
if (strspn(port, "0123456789") != strlen(port)) {
struct servent *s;
if ((s = getservbyname(port, "tcp")) == NULL) {
iport = 0;
LogPrintf(LogWARN, "%s: Invalid port or service\n", port);
} else
iport = ntohs(s->s_port);
} else
iport = atoi(port);
res = iport ? ServerTcpOpen(iport) : -1;
}
}
return res;
}
static int
SetModemParity(struct cmdargs const *arg)
{
return arg->argc > 0 ? modem_SetParity(arg->cx->physical, *arg->argv) : -1;
}
static int
SetLogLevel(struct cmdargs const *arg)
{
int i;
int res;
int argc;
char const *const *argv, *argp;
void (*Discard)(int), (*Keep)(int);
void (*DiscardAll)(void);
argc = arg->argc;
argv = arg->argv;
res = 0;
if (argc == 0 || strcasecmp(argv[0], "local")) {
Discard = LogDiscard;
Keep = LogKeep;
DiscardAll = LogDiscardAll;
} else {
argc--;
argv++;
Discard = LogDiscardLocal;
Keep = LogKeepLocal;
DiscardAll = LogDiscardAllLocal;
}
if (argc == 0 || (argv[0][0] != '+' && argv[0][0] != '-'))
DiscardAll();
while (argc--) {
argp = **argv == '+' || **argv == '-' ? *argv + 1 : *argv;
for (i = LogMIN; i <= LogMAX; i++)
if (strcasecmp(argp, LogName(i)) == 0) {
if (**argv == '-')
(*Discard)(i);
else
(*Keep)(i);
break;
}
if (i > LogMAX) {
LogPrintf(LogWARN, "%s: Invalid log value\n", argp);
res = -1;
}
argv++;
}
return res;
}
static int
SetEscape(struct cmdargs const *arg)
{
int code;
int argc = arg->argc;
char const *const *argv = arg->argv;
for (code = 0; code < 33; code++)
arg->cx->physical->async.cfg.EscMap[code] = 0;
while (argc-- > 0) {
sscanf(*argv++, "%x", &code);
code &= 0xff;
arg->cx->physical->async.cfg.EscMap[code >> 3] |= (1 << (code & 7));
arg->cx->physical->async.cfg.EscMap[32] = 1;
}
return 0;
}
static int
SetInitialMRU(struct cmdargs const *arg)
{
long mru;
const char *err;
if (arg->argc > 0) {
mru = atol(*arg->argv);
if (mru < MIN_MRU)
err = "Given MRU value (%ld) is too small.\n";
else if (mru > MAX_MRU)
err = "Given MRU value (%ld) is too big.\n";
else {
VarMRU = mru;
return 0;
}
LogPrintf(LogWARN, err, mru);
}
return -1;
}
static int
SetPreferredMTU(struct cmdargs const *arg)
{
long mtu;
const char *err;
if (arg->argc > 0) {
mtu = atol(*arg->argv);
if (mtu == 0) {
VarPrefMTU = 0;
return 0;
} else if (mtu < MIN_MTU)
err = "Given MTU value (%ld) is too small.\n";
else if (mtu > MAX_MTU)
err = "Given MTU value (%ld) is too big.\n";
else {
VarPrefMTU = mtu;
return 0;
}
LogPrintf(LogWARN, err, mtu);
}
return -1;
}
static int
SetIdleTimeout(struct cmdargs const *arg)
{
if (arg->argc > 0) {
VarIdleTimeout = atoi(arg->argv[0]);
/* If we're connected, restart the idle timer */
UpdateIdleTimer(arg->bundle);
if (arg->argc > 1) {
VarLqrTimeout = atoi(arg->argv[1]);
if (VarLqrTimeout < 1)
VarLqrTimeout = 30;
if (arg->argc > 2) {
VarRetryTimeout = atoi(arg->argv[2]);
if (VarRetryTimeout < 1 || VarRetryTimeout > 10)
VarRetryTimeout = 3;
}
}
return 0;
}
return -1;
}
static struct in_addr
GetIpAddr(const char *cp)
{
struct hostent *hp;
struct in_addr ipaddr;
if (inet_aton(cp, &ipaddr) == 0) {
hp = gethostbyname(cp);
if (hp && hp->h_addrtype == AF_INET)
memcpy(&ipaddr, hp->h_addr, hp->h_length);
else
ipaddr.s_addr = 0;
}
return (ipaddr);
}
static int
SetInterfaceAddr(struct cmdargs const *arg)
{
const char *hisaddr;
hisaddr = NULL;
IpcpInfo.DefMyAddress.ipaddr.s_addr = INADDR_ANY;
IpcpInfo.DefHisAddress.ipaddr.s_addr = INADDR_ANY;
if (arg->argc > 4)
return -1;
IpcpInfo.HaveTriggerAddress = 0;
ifnetmask.s_addr = 0;
iplist_reset(&IpcpInfo.DefHisChoice);
if (arg->argc > 0) {
if (!ParseAddr(arg->argc, arg->argv, &IpcpInfo.DefMyAddress.ipaddr,
&IpcpInfo.DefMyAddress.mask, &IpcpInfo.DefMyAddress.width))
return 1;
if (arg->argc > 1) {
hisaddr = arg->argv[1];
if (arg->argc > 2) {
ifnetmask = GetIpAddr(arg->argv[2]);
if (arg->argc > 3) {
IpcpInfo.TriggerAddress = GetIpAddr(arg->argv[3]);
IpcpInfo.HaveTriggerAddress = 1;
}
}
}
}
/*
* For backwards compatibility, 0.0.0.0 means any address.
*/
if (IpcpInfo.DefMyAddress.ipaddr.s_addr == INADDR_ANY) {
IpcpInfo.DefMyAddress.mask.s_addr = INADDR_ANY;
IpcpInfo.DefMyAddress.width = 0;
}
IpcpInfo.want_ipaddr.s_addr = IpcpInfo.DefMyAddress.ipaddr.s_addr;
if (IpcpInfo.DefHisAddress.ipaddr.s_addr == INADDR_ANY) {
IpcpInfo.DefHisAddress.mask.s_addr = INADDR_ANY;
IpcpInfo.DefHisAddress.width = 0;
}
if (hisaddr && !UseHisaddr(arg->bundle, hisaddr, mode & MODE_AUTO))
return 4;
return 0;
}
#ifndef NOMSEXT
static void
SetMSEXT(struct in_addr * pri_addr,
struct in_addr * sec_addr,
int argc,
char const *const *argv)
{
int dummyint;
struct in_addr dummyaddr;
pri_addr->s_addr = sec_addr->s_addr = 0L;
if (argc > 0) {
ParseAddr(argc, argv++, pri_addr, &dummyaddr, &dummyint);
if (--argc > 0)
ParseAddr(argc, argv++, sec_addr, &dummyaddr, &dummyint);
else
sec_addr->s_addr = pri_addr->s_addr;
}
/*
* if the primary/secondary ns entries are 0.0.0.0 we should set them to
* either the localhost's ip, or the values in /etc/resolv.conf ??
*
* up to you if you want to implement this...
*/
}
static int
SetNS(struct cmdargs const *arg)
{
SetMSEXT(&IpcpInfo.ns_entries[0], &IpcpInfo.ns_entries[1],
arg->argc, arg->argv);
return 0;
}
static int
SetNBNS(struct cmdargs const *arg)
{
SetMSEXT(&IpcpInfo.nbns_entries[0], &IpcpInfo.nbns_entries[1],
arg->argc, arg->argv);
return 0;
}
#endif /* MS_EXT */
static int
SetVariable(struct cmdargs const *arg)
{
u_long map;
const char *argp;
int param = (int)arg->cmd->args;
struct datalink *cx = arg->cx;
if (arg->argc > 0)
argp = *arg->argv;
else
argp = "";
if ((arg->cmd->lauth & LOCAL_CX) && !cx) {
LogPrintf(LogWARN, "set %s: No context (use the `link' command)\n",
arg->cmd->name);
return 1;
} else if (cx && !(arg->cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) {
LogPrintf(LogWARN, "set %s: Redundant context (%s) ignored\n",
arg->cmd->name, cx->name);
cx = NULL;
}
switch (param) {
case VAR_AUTHKEY:
strncpy(VarAuthKey, argp, sizeof VarAuthKey - 1);
VarAuthKey[sizeof VarAuthKey - 1] = '\0';
break;
case VAR_AUTHNAME:
strncpy(VarAuthName, argp, sizeof VarAuthName - 1);
VarAuthName[sizeof VarAuthName - 1] = '\0';
break;
case VAR_DIAL:
if (!(mode & (MODE_DIRECT|MODE_DEDICATED))) {
strncpy(cx->cfg.script.dial, argp, sizeof cx->cfg.script.dial - 1);
cx->cfg.script.dial[sizeof cx->cfg.script.dial - 1] = '\0';
}
break;
case VAR_LOGIN:
if (!(mode & (MODE_DIRECT|MODE_DEDICATED))) {
strncpy(cx->cfg.script.login, argp, sizeof cx->cfg.script.login - 1);
cx->cfg.script.login[sizeof cx->cfg.script.login - 1] = '\0';
}
break;
case VAR_DEVICE:
modem_SetDeviceName(cx->physical, argp);
break;
case VAR_ACCMAP:
sscanf(argp, "%lx", &map);
VarAccmap = map;
break;
case VAR_PHONE:
strncpy(VarPhoneList, argp, sizeof VarPhoneList - 1);
VarPhoneList[sizeof VarPhoneList - 1] = '\0';
strncpy(VarPhoneCopy, VarPhoneList, sizeof VarPhoneCopy - 1);
VarPhoneCopy[sizeof VarPhoneCopy - 1] = '\0';
VarNextPhone = VarPhoneCopy;
VarAltPhone = NULL;
break;
case VAR_HANGUP:
if (!(mode & (MODE_DIRECT|MODE_DEDICATED))) {
strncpy(cx->cfg.script.hangup, argp, sizeof cx->cfg.script.hangup - 1);
cx->cfg.script.hangup[sizeof cx->cfg.script.hangup - 1] = '\0';
}
break;
#ifdef HAVE_DES
case VAR_ENC:
VarMSChap = !strcasecmp(argp, "mschap");
break;
#endif
}
return 0;
}
static int
SetCtsRts(struct cmdargs const *arg)
{
if (arg->argc > 0) {
if (arg->argc > 1) {
LogPrintf(LogWARN, "SetCtsRts: Too many arguments\n");
return -1;
}
if (strcmp(*arg->argv, "on") == 0)
Physical_SetRtsCts(bundle2physical(arg->bundle, NULL), 1);
else if (strcmp(*arg->argv, "off") == 0)
Physical_SetRtsCts(bundle2physical(arg->bundle, NULL), 0);
else
return -1;
return 0;
}
return -1;
}
static int
SetOpenMode(struct cmdargs const *arg)
{
if (arg->argc > 0) {
if (strcasecmp(*arg->argv, "active") == 0)
VarOpenMode = arg->argc > 1 ? atoi(arg->argv[1]) : 1;
else if (strcasecmp(*arg->argv, "passive") == 0)
VarOpenMode = OPEN_PASSIVE;
else
return -1;
return 0;
}
return -1;
}
static struct cmdtab const SetCommands[] = {
{"accmap", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
"Set accmap value", "set accmap hex-value", (const void *) VAR_ACCMAP},
{"afilter", NULL, SetAfilter, LOCAL_AUTH,
"Set keep Alive filter", "set afilter ..."},
{"authkey", "key", SetVariable, LOCAL_AUTH,
"Set authentication key", "set authkey|key key", (const void *) VAR_AUTHKEY},
{"authname", NULL, SetVariable, LOCAL_AUTH,
"Set authentication name", "set authname name", (const void *) VAR_AUTHNAME},
{"ctsrts", NULL, SetCtsRts, LOCAL_AUTH | LOCAL_CX,
"Use CTS/RTS modem signalling", "set ctsrts [on|off]"},
{"device", "line", SetVariable, LOCAL_AUTH | LOCAL_CX,
"Set modem device name", "set device|line device-name[,device-name]",
(const void *) VAR_DEVICE},
{"dfilter", NULL, SetDfilter, LOCAL_AUTH,
"Set demand filter", "set dfilter ..."},
{"dial", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
"Set dialing script", "set dial chat-script", (const void *) VAR_DIAL},
#ifdef HAVE_DES
{"encrypt", NULL, SetVariable, LOCAL_AUTH, "Set CHAP encryption algorithm",
"set encrypt MSChap|MD5", (const void *) VAR_ENC},
#endif
{"escape", NULL, SetEscape, LOCAL_AUTH | LOCAL_CX,
"Set escape characters", "set escape hex-digit ..."},
{"hangup", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
"Set hangup script", "set hangup chat-script", (const void *) VAR_HANGUP},
{"ifaddr", NULL, SetInterfaceAddr, LOCAL_AUTH, "Set destination address",
"set ifaddr [src-addr [dst-addr [netmask [trg-addr]]]]"},
{"ifilter", NULL, SetIfilter, LOCAL_AUTH,
"Set input filter", "set ifilter ..."},
{"loopback", NULL, SetLoopback, LOCAL_AUTH,
"Set loopback facility", "set loopback on|off"},
{"log", NULL, SetLogLevel, LOCAL_AUTH,
"Set log level", "set log [local] [+|-]value..."},
{"login", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
"Set login script", "set login chat-script", (const void *) VAR_LOGIN},
{"mru", NULL, SetInitialMRU, LOCAL_AUTH,
"Set Initial MRU value", "set mru value"},
{"mtu", NULL, SetPreferredMTU, LOCAL_AUTH,
"Set Preferred MTU value", "set mtu value"},
#ifndef NOMSEXT
{"nbns", NULL, SetNBNS, LOCAL_AUTH,
"Set NetBIOS NameServer", "set nbns pri-addr [sec-addr]"},
{"ns", NULL, SetNS, LOCAL_AUTH,
"Set NameServer", "set ns pri-addr [sec-addr]"},
#endif
{"ofilter", NULL, SetOfilter, LOCAL_AUTH,
"Set output filter", "set ofilter ..."},
{"openmode", NULL, SetOpenMode, LOCAL_AUTH | LOCAL_CX,
"Set open mode", "set openmode [active|passive]"},
{"parity", NULL, SetModemParity, LOCAL_AUTH | LOCAL_CX,
"Set modem parity", "set parity [odd|even|none]"},
{"phone", NULL, SetVariable, LOCAL_AUTH, "Set telephone number(s)",
"set phone phone1[:phone2[...]]", (const void *) VAR_PHONE},
{"reconnect", NULL, SetReconnect, LOCAL_AUTH | LOCAL_CX,
"Set Reconnect timeout", "set reconnect value ntries"},
{"redial", NULL, SetRedialTimeout, LOCAL_AUTH | LOCAL_CX,
"Set Redial timeout", "set redial value|random[.value|random] [attempts]"},
{"stopped", NULL, SetStoppedTimeout, LOCAL_AUTH, "Set STOPPED timeouts",
"set stopped [LCPseconds [IPCPseconds [CCPseconds]]]"},
{"server", "socket", SetServer, LOCAL_AUTH,
"Set server port", "set server|socket TcpPort|LocalName|none [mask]"},
{"speed", NULL, SetModemSpeed, LOCAL_AUTH | LOCAL_CX,
"Set modem speed", "set speed value"},
{"timeout", NULL, SetIdleTimeout, LOCAL_AUTH,
"Set Idle timeout", "set timeout value"},
{"vj", NULL, SetInitVJ, LOCAL_AUTH,
"Set vj values", "set vj slots|slotcomp"},
{"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
"Display this message", "set help|? [command]", SetCommands},
{NULL, NULL, NULL},
};
static int
SetCommand(struct cmdargs const *arg)
{
if (arg->argc > 0)
FindExec(arg->bundle, SetCommands, arg->argc, arg->argv, "set ", arg->cx);
else if (prompt_Active(&prompt))
prompt_Printf(&prompt, "Use `set ?' to get a list or `set ? <var>' for"
" syntax help.\n");
else
LogPrintf(LogWARN, "set command must have arguments\n");
return 0;
}
static int
AddCommand(struct cmdargs const *arg)
{
struct in_addr dest, gateway, netmask;
int gw;
if (arg->argc != 3 && arg->argc != 2)
return -1;
if (arg->argc == 2)
if (strcasecmp(arg->argv[0], "default"))
return -1;
else {
dest.s_addr = netmask.s_addr = INADDR_ANY;
gw = 1;
}
else {
if (strcasecmp(arg->argv[0], "MYADDR") == 0)
dest = IpcpInfo.want_ipaddr;
else if (strcasecmp(arg->argv[0], "HISADDR") == 0)
dest = IpcpInfo.his_ipaddr;
else
dest = GetIpAddr(arg->argv[0]);
netmask = GetIpAddr(arg->argv[1]);
gw = 2;
}
if (strcasecmp(arg->argv[gw], "HISADDR") == 0)
gateway = IpcpInfo.his_ipaddr;
else if (strcasecmp(arg->argv[gw], "INTERFACE") == 0)
gateway.s_addr = INADDR_ANY;
else
gateway = GetIpAddr(arg->argv[gw]);
bundle_SetRoute(arg->bundle, RTM_ADD, dest, gateway, netmask,
arg->cmd->args ? 1 : 0);
return 0;
}
static int
DeleteCommand(struct cmdargs const *arg)
{
struct in_addr dest, none;
if (arg->argc == 1)
if(strcasecmp(arg->argv[0], "all") == 0)
DeleteIfRoutes(arg->bundle, 0);
else {
if (strcasecmp(arg->argv[0], "MYADDR") == 0)
dest = IpcpInfo.want_ipaddr;
else if (strcasecmp(arg->argv[0], "default") == 0)
dest.s_addr = INADDR_ANY;
else
dest = GetIpAddr(arg->argv[0]);
none.s_addr = INADDR_ANY;
bundle_SetRoute(arg->bundle, RTM_DELETE, dest, none, none,
arg->cmd->args ? 1 : 0);
}
else
return -1;
return 0;
}
#ifndef NOALIAS
static struct cmdtab const AliasCommands[] =
{
{"enable", NULL, AliasEnable, LOCAL_AUTH,
"enable IP aliasing", "alias enable [yes|no]"},
{"port", NULL, AliasRedirectPort, LOCAL_AUTH,
"port redirection", "alias port [proto addr_local:port_local port_alias]"},
{"addr", NULL, AliasRedirectAddr, LOCAL_AUTH,
"static address translation", "alias addr [addr_local addr_alias]"},
{"deny_incoming", NULL, AliasOption, LOCAL_AUTH,
"stop incoming connections", "alias deny_incoming [yes|no]",
(const void *) PKT_ALIAS_DENY_INCOMING},
{"log", NULL, AliasOption, LOCAL_AUTH,
"log aliasing link creation", "alias log [yes|no]",
(const void *) PKT_ALIAS_LOG},
{"same_ports", NULL, AliasOption, LOCAL_AUTH,
"try to leave port numbers unchanged", "alias same_ports [yes|no]",
(const void *) PKT_ALIAS_SAME_PORTS},
{"use_sockets", NULL, AliasOption, LOCAL_AUTH,
"allocate host sockets", "alias use_sockets [yes|no]",
(const void *) PKT_ALIAS_USE_SOCKETS},
{"unregistered_only", NULL, AliasOption, LOCAL_AUTH,
"alias unregistered (private) IP address space only",
"alias unregistered_only [yes|no]",
(const void *) PKT_ALIAS_UNREGISTERED_ONLY},
{"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
"Display this message", "alias help|? [command]", AliasCommands},
{NULL, NULL, NULL},
};
static int
AliasCommand(struct cmdargs const *arg)
{
if (arg->argc > 0)
FindExec(arg->bundle, AliasCommands, arg->argc, arg->argv, "alias ", arg->cx);
else if (prompt_Active(&prompt))
prompt_Printf(&prompt, "Use `alias help' to get a list or `alias help"
" <option>' for syntax help.\n");
else
LogPrintf(LogWARN, "alias command must have arguments\n");
return 0;
}
static int
AliasEnable(struct cmdargs const *arg)
{
if (arg->argc == 1)
if (strcasecmp(arg->argv[0], "yes") == 0) {
if (!(mode & MODE_ALIAS)) {
if (loadAliasHandlers(&VarAliasHandlers) == 0) {
mode |= MODE_ALIAS;
return 0;
}
LogPrintf(LogWARN, "Cannot load alias library\n");
return 1;
}
return 0;
} else if (strcasecmp(arg->argv[0], "no") == 0) {
if (mode & MODE_ALIAS) {
unloadAliasHandlers();
mode &= ~MODE_ALIAS;
}
return 0;
}
return -1;
}
static int
AliasOption(struct cmdargs const *arg)
{
unsigned param = (unsigned)arg->cmd->args;
if (arg->argc == 1)
if (strcasecmp(arg->argv[0], "yes") == 0) {
if (mode & MODE_ALIAS) {
VarPacketAliasSetMode(param, param);
return 0;
}
LogPrintf(LogWARN, "alias not enabled\n");
} else if (strcmp(arg->argv[0], "no") == 0) {
if (mode & MODE_ALIAS) {
VarPacketAliasSetMode(0, param);
return 0;
}
LogPrintf(LogWARN, "alias not enabled\n");
}
return -1;
}
#endif /* #ifndef NOALIAS */
static struct cmdtab const AllowCommands[] = {
{"users", "user", AllowUsers, LOCAL_AUTH,
"Allow users access to ppp", "allow users logname..."},
{"modes", "mode", AllowModes, LOCAL_AUTH,
"Only allow certain ppp modes", "allow modes mode..."},
{"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
"Display this message", "allow help|? [command]", AllowCommands},
{NULL, NULL, NULL},
};
static int
AllowCommand(struct cmdargs const *arg)
{
/* arg->bundle may be NULL (see ValidSystem()) ! */
if (arg->argc > 0)
FindExec(arg->bundle, AllowCommands, arg->argc, arg->argv, "allow ", arg->cx);
else if (prompt_Active(&prompt))
prompt_Printf(&prompt, "Use `allow ?' to get a list or `allow ? <cmd>' for"
" syntax help.\n");
else
LogPrintf(LogWARN, "allow command must have arguments\n");
return 0;
}
static int
LinkCommand(struct cmdargs const *arg)
{
if (arg->argc > 1) {
struct datalink *cx = bundle2datalink(arg->bundle, arg->argv[0]);
if (cx)
FindExec(arg->bundle, Commands, arg->argc - 1, arg->argv + 1, "", cx);
else {
LogPrintf(LogWARN, "link: %s: Invalid link name\n", arg->argv[0]);
return 1;
}
} else {
LogPrintf(LogWARN, "Usage: %s\n", arg->cmd->syntax);
return 2;
}
return 0;
}
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