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-rw-r--r--usr.sbin/ppp/command.c1628
1 files changed, 1628 insertions, 0 deletions
diff --git a/usr.sbin/ppp/command.c b/usr.sbin/ppp/command.c
new file mode 100644
index 00000000000..002cc44f5db
--- /dev/null
+++ b/usr.sbin/ppp/command.c
@@ -0,0 +1,1628 @@
+/*
+ * 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 1.1 1997/11/23 20:27:33 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 "phase.h"
+#include "lcp.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 "chat.h"
+#include "os.h"
+#include "server.h"
+#include "main.h"
+#include "route.h"
+#include "ccp.h"
+#include "ip.h"
+#include "slcompress.h"
+#include "auth.h"
+
+struct in_addr ifnetmask;
+
+static int ShowCommand(struct cmdargs const *arg);
+static int TerminalCommand(struct cmdargs const *arg);
+static int QuitCommand(struct cmdargs const *arg);
+static int CloseCommand(struct cmdargs const *arg);
+static int DialCommand(struct cmdargs const *arg);
+static int DownCommand(struct cmdargs const *arg);
+static int AllowCommand(struct cmdargs const *arg);
+static int SetCommand(struct cmdargs const *arg);
+static int AddCommand(struct cmdargs const *arg);
+static int DeleteCommand(struct cmdargs const *arg);
+static int BgShellCommand(struct cmdargs const *arg);
+static int FgShellCommand(struct cmdargs const *arg);
+#ifndef NOALIAS
+static int AliasCommand(struct cmdargs const *arg);
+static int AliasEnable(struct cmdargs const *arg);
+static int AliasOption(struct cmdargs const *arg);
+#endif
+
+static int
+HelpCommand(struct cmdargs const *arg)
+{
+ struct cmdtab const *cmd;
+ int n, cmax, dmax, cols;
+
+ if (!VarTerm)
+ return 0;
+
+ if (arg->argc > 0) {
+ for (cmd = arg->cmd; cmd->name; cmd++)
+ if (strcasecmp(cmd->name, *arg->argv) == 0 &&
+ (cmd->lauth & VarLocalAuth)) {
+ fprintf(VarTerm, "%s\n", cmd->syntax);
+ return 0;
+ }
+ return -1;
+ }
+ cmax = dmax = 0;
+ for (cmd = arg->cmd; 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->cmd; cmd->func; cmd++)
+ if (cmd->name && (cmd->lauth & VarLocalAuth)) {
+ fprintf(VarTerm, " %-*.*s: %-*.*s",
+ cmax, cmax, cmd->name, dmax, dmax, cmd->helpmes);
+ if (++n % cols == 0)
+ fprintf(VarTerm, "\n");
+ }
+ if (n % cols != 0)
+ fprintf(VarTerm, "\n");
+
+ return 0;
+}
+
+int
+IsInteractive(int Display)
+{
+ const char *mes = NULL;
+
+ if (mode & MODE_DDIAL)
+ mes = "Working in dedicated dial mode.";
+ else if (mode & MODE_BACKGROUND)
+ mes = "Working in background mode.";
+ else if (mode & MODE_AUTO)
+ mes = "Working in auto mode.";
+ else if (mode & MODE_DIRECT)
+ mes = "Working in direct mode.";
+ else if (mode & MODE_DEDICATED)
+ mes = "Working in dedicated mode.";
+ if (mes) {
+ if (Display && VarTerm)
+ fprintf(VarTerm, "%s\n", mes);
+ return 0;
+ }
+ return 1;
+}
+
+static int
+DialCommand(struct cmdargs const *arg)
+{
+ int tries;
+ int res;
+
+ if (LcpFsm.state > ST_CLOSED) {
+ if (VarTerm)
+ fprintf(VarTerm, "LCP state is [%s]\n", StateNames[LcpFsm.state]);
+ return 0;
+ }
+
+ if (arg->argc > 0 && (res = LoadCommand(arg)) != 0)
+ return res;
+
+ tries = 0;
+ do {
+ if (VarTerm)
+ fprintf(VarTerm, "Dial attempt %u of %d\n", ++tries, VarDialTries);
+ if (OpenModem() < 0) {
+ if (VarTerm)
+ fprintf(VarTerm, "Failed to open modem.\n");
+ break;
+ }
+ if ((res = DialModem()) == EX_DONE) {
+ nointr_sleep(1);
+ ModemTimeout(NULL);
+ PacketMode();
+ break;
+ } else if (res == EX_SIG)
+ return 1;
+ } while (VarDialTries == 0 || tries < VarDialTries);
+
+ 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;
+ FILE *oVarTerm;
+ 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 (VarTerm && !(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 (VarTerm)
+ 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;
+
+ if (VarTerm)
+ fd = fileno(VarTerm);
+ 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);
+
+ if (fd > 2)
+ if (VarTerm) {
+ oVarTerm = VarTerm;
+ VarTerm = 0;
+ if (oVarTerm && oVarTerm != stdout)
+ fclose(oVarTerm);
+ } else
+ close(fd);
+
+ for (dtablesize = getdtablesize(), i = 3; i < dtablesize; i++)
+ close(i);
+
+ TtyOldMode();
+ 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(IfDevName);
+ 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 (VarTerm)
+ fprintf(VarTerm, "ppp: Pausing until %s finishes\n", arg->argv[0]);
+ execvp(argv[0], argv);
+ } else {
+ if (VarTerm)
+ fprintf(VarTerm, "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);
+ }
+
+ TtyCommandMode(1);
+
+ 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"},
+ {"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,
+ "Close connection", "close"},
+ {"delete", NULL, DeleteCommand, LOCAL_AUTH,
+ "delete route", "delete ALL | dest [gateway [mask]]"},
+ {"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"},
+ {"load", NULL, LoadCommand, LOCAL_AUTH,
+ "Load settings", "load [remote]"},
+ {"save", NULL, SaveCommand, LOCAL_AUTH,
+ "Save settings", "save"},
+ {"set", "setup", SetCommand, LOCAL_AUTH,
+ "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,
+ "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,
+ "Generate down event", "down"},
+ {NULL, NULL, NULL},
+};
+
+static int
+ShowLoopback(struct cmdargs const *arg)
+{
+ if (VarTerm)
+ fprintf(VarTerm, "Local loopback is %s\n", VarLoopback ? "on" : "off");
+
+ return 0;
+}
+
+static int
+ShowLogLevel(struct cmdargs const *arg)
+{
+ int i;
+
+ if (!VarTerm)
+ return 0;
+
+ fprintf(VarTerm, "Log: ");
+ for (i = LogMIN; i <= LogMAX; i++)
+ if (LogIsKept(i) & LOG_KEPT_SYSLOG)
+ fprintf(VarTerm, " %s", LogName(i));
+
+ fprintf(VarTerm, "\nLocal:");
+ for (i = LogMIN; i <= LogMAX; i++)
+ if (LogIsKept(i) & LOG_KEPT_LOCAL)
+ fprintf(VarTerm, " %s", LogName(i));
+
+ fprintf(VarTerm, "\n");
+
+ return 0;
+}
+
+static int
+ShowEscape(struct cmdargs const *arg)
+{
+ int code, bit;
+
+ if (!VarTerm)
+ return 0;
+ if (EscMap[32]) {
+ for (code = 0; code < 32; code++)
+ if (EscMap[code])
+ for (bit = 0; bit < 8; bit++)
+ if (EscMap[code] & (1 << bit))
+ fprintf(VarTerm, " 0x%02x", (code << 3) + bit);
+ fprintf(VarTerm, "\n");
+ }
+ return 0;
+}
+
+static int
+ShowTimeout(struct cmdargs const *arg)
+{
+ if (VarTerm)
+ fprintf(VarTerm, " Idle Timer: %d secs LQR Timer: %d secs"
+ " Retry Timer: %d secs\n", VarIdleTimeout, VarLqrTimeout,
+ VarRetryTimeout);
+ return 0;
+}
+
+static int
+ShowStopped(struct cmdargs const *arg)
+{
+ if (!VarTerm)
+ return 0;
+
+ fprintf(VarTerm, " Stopped Timer: LCP: ");
+ if (!LcpFsm.StoppedTimer.load)
+ fprintf(VarTerm, "Disabled");
+ else
+ fprintf(VarTerm, "%ld secs", LcpFsm.StoppedTimer.load / SECTICKS);
+
+ fprintf(VarTerm, ", IPCP: ");
+ if (!IpcpFsm.StoppedTimer.load)
+ fprintf(VarTerm, "Disabled");
+ else
+ fprintf(VarTerm, "%ld secs", IpcpFsm.StoppedTimer.load / SECTICKS);
+
+ fprintf(VarTerm, ", CCP: ");
+ if (!CcpFsm.StoppedTimer.load)
+ fprintf(VarTerm, "Disabled");
+ else
+ fprintf(VarTerm, "%ld secs", CcpFsm.StoppedTimer.load / SECTICKS);
+
+ fprintf(VarTerm, "\n");
+
+ return 0;
+}
+
+static int
+ShowAuthKey(struct cmdargs const *arg)
+{
+ if (!VarTerm)
+ return 0;
+ fprintf(VarTerm, "AuthName = %s\n", VarAuthName);
+ fprintf(VarTerm, "AuthKey = %s\n", VarAuthKey);
+#ifdef HAVE_DES
+ fprintf(VarTerm, "Encrypt = %s\n", VarMSChap ? "MSChap" : "MD5" );
+#endif
+ return 0;
+}
+
+static int
+ShowVersion(struct cmdargs const *arg)
+{
+ if (VarTerm)
+ fprintf(VarTerm, "%s - %s \n", VarVersion, VarLocalVersion);
+ return 0;
+}
+
+static int
+ShowInitialMRU(struct cmdargs const *arg)
+{
+ if (VarTerm)
+ fprintf(VarTerm, " Initial MRU: %ld\n", VarMRU);
+ return 0;
+}
+
+static int
+ShowPreferredMTU(struct cmdargs const *arg)
+{
+ if (VarTerm)
+ if (VarPrefMTU)
+ fprintf(VarTerm, " Preferred MTU: %ld\n", VarPrefMTU);
+ else
+ fprintf(VarTerm, " Preferred MTU: unspecified\n");
+ return 0;
+}
+
+static int
+ShowReconnect(struct cmdargs const *arg)
+{
+ if (VarTerm)
+ fprintf(VarTerm, " Reconnect Timer: %d, %d tries\n",
+ VarReconnectTimer, VarReconnectTries);
+ return 0;
+}
+
+static int
+ShowRedial(struct cmdargs const *arg)
+{
+ if (!VarTerm)
+ return 0;
+ fprintf(VarTerm, " Redial Timer: ");
+
+ if (VarRedialTimeout >= 0) {
+ fprintf(VarTerm, " %d seconds, ", VarRedialTimeout);
+ } else {
+ fprintf(VarTerm, " Random 0 - %d seconds, ", REDIAL_PERIOD);
+ }
+
+ fprintf(VarTerm, " Redial Next Timer: ");
+
+ if (VarRedialNextTimeout >= 0) {
+ fprintf(VarTerm, " %d seconds, ", VarRedialNextTimeout);
+ } else {
+ fprintf(VarTerm, " Random 0 - %d seconds, ", REDIAL_PERIOD);
+ }
+
+ if (VarDialTries)
+ fprintf(VarTerm, "%d dial tries", VarDialTries);
+
+ fprintf(VarTerm, "\n");
+
+ return 0;
+}
+
+#ifndef NOMSEXT
+static int
+ShowMSExt(struct cmdargs const *arg)
+{
+ if (VarTerm) {
+ fprintf(VarTerm, " MS PPP extention values \n");
+ fprintf(VarTerm, " Primary NS : %s\n", inet_ntoa(ns_entries[0]));
+ fprintf(VarTerm, " Secondary NS : %s\n", inet_ntoa(ns_entries[1]));
+ fprintf(VarTerm, " Primary NBNS : %s\n", inet_ntoa(nbns_entries[0]));
+ fprintf(VarTerm, " Secondary NBNS : %s\n", inet_ntoa(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,
+ "Show escape characters", "show escape"},
+ {"hdlc", NULL, ReportHdlcStatus, LOCAL_AUTH,
+ "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"},
+ {"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, ShowModemStatus, LOCAL_AUTH,
+ "Show modem setups", "show modem"},
+ {"mru", NULL, ShowInitialMRU, LOCAL_AUTH,
+ "Show Initial MRU", "show mru"},
+ {"mtu", NULL, ShowPreferredMTU, LOCAL_AUTH,
+ "Show Preferred MTU", "show mtu"},
+ {"ofilter", NULL, ShowOfilter, LOCAL_AUTH,
+ "Show Output filters", "show ofilter option .."},
+ {"proto", NULL, ReportProtStatus, LOCAL_AUTH,
+ "Show protocol summary", "show proto"},
+ {"reconnect", NULL, ShowReconnect, LOCAL_AUTH,
+ "Show reconnect timer", "show reconnect"},
+ {"redial", NULL, ShowRedial, LOCAL_AUTH,
+ "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"},
+#ifndef NOMSEXT
+ {"msext", NULL, ShowMSExt, LOCAL_AUTH,
+ "Show MS PPP extentions", "show msext"},
+#endif
+ {"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 cmdtab const *cmds, int argc, char const *const *argv)
+{
+ struct cmdtab const *cmd;
+ int val = 1;
+ int nmatch;
+ struct cmdargs arg;
+
+ cmd = FindCommand(cmds, *argv, &nmatch);
+ if (nmatch > 1)
+ LogPrintf(LogWARN, "%s: Ambiguous command\n", *argv);
+ else if (cmd && (cmd->lauth & VarLocalAuth)) {
+ arg.cmd = cmds;
+ arg.argc = argc-1;
+ arg.argv = argv+1;
+ arg.data = cmd->args;
+ val = (cmd->func) (&arg);
+ } else
+ LogPrintf(LogWARN, "%s: Invalid command\n", *argv);
+
+ if (val == -1)
+ LogPrintf(LogWARN, "Usage: %s\n", cmd->syntax);
+ else if (val)
+ LogPrintf(LogCOMMAND, "%s: Failed %d\n", *argv, val);
+
+ return val;
+}
+
+int aft_cmd = 1;
+
+void
+Prompt()
+{
+ const char *pconnect, *pauth;
+
+ if (!VarTerm || TermMode)
+ return;
+
+ if (!aft_cmd)
+ fprintf(VarTerm, "\n");
+ else
+ aft_cmd = 0;
+
+ if (VarLocalAuth == LOCAL_AUTH)
+ pauth = " ON ";
+ else
+ pauth = " on ";
+ if (IpcpFsm.state == ST_OPENED && phase == PHASE_NETWORK)
+ pconnect = "PPP";
+ else
+ pconnect = "ppp";
+ fprintf(VarTerm, "%s%s%s> ", pconnect, pauth, VarShortHost);
+ fflush(VarTerm);
+}
+
+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;
+}
+
+void
+RunCommand(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) {
+ strcpy(buf, label);
+ strcat(buf, ": ");
+ }
+ n = strlen(buf);
+ for (f = 0; f < argc; f++) {
+ if (n < sizeof(buf)-1 && f)
+ buf[n++] = ' ';
+ strncpy(buf+n, argv[f], sizeof(buf)-n-1);
+ n += strlen(buf+n);
+ }
+ LogPrintf(LogCOMMAND, "%s\n", buf);
+ }
+ FindExec(Commands, argc, argv);
+ }
+}
+
+void
+DecodeCommand(char *buff, int nb, const char *label)
+{
+ int argc;
+ char **argv;
+
+ InterpretCommand(buff, nb, &argc, &argv);
+ RunCommand(argc, (char const *const *)argv, label);
+}
+
+static int
+ShowCommand(struct cmdargs const *arg)
+{
+ if (arg->argc > 0)
+ FindExec(ShowCommands, arg->argc, arg->argv);
+ else if (VarTerm)
+ fprintf(VarTerm, "Use ``show ?'' to get a arg->cmd.\n");
+ else
+ LogPrintf(LogWARN, "show command must have arguments\n");
+
+ return 0;
+}
+
+static int
+TerminalCommand(struct cmdargs const *arg)
+{
+ if (LcpFsm.state > ST_CLOSED) {
+ if (VarTerm)
+ fprintf(VarTerm, "LCP state is [%s]\n", StateNames[LcpFsm.state]);
+ return 1;
+ }
+ if (!IsInteractive(1))
+ return (1);
+ if (OpenModem() < 0) {
+ if (VarTerm)
+ fprintf(VarTerm, "Failed to open modem.\n");
+ return (1);
+ }
+ if (VarTerm) {
+ fprintf(VarTerm, "Enter to terminal mode.\n");
+ fprintf(VarTerm, "Type `~?' for help.\n");
+ }
+ TtyTermMode();
+ return (0);
+}
+
+static int
+QuitCommand(struct cmdargs const *arg)
+{
+ if (VarTerm) {
+ DropClient();
+ if (mode & MODE_INTER)
+ Cleanup(EX_NORMAL);
+ else if (arg->argc > 0 && !strcasecmp(*arg->argv, "all") && VarLocalAuth&LOCAL_AUTH)
+ Cleanup(EX_NORMAL);
+ }
+
+ return 0;
+}
+
+static int
+CloseCommand(struct cmdargs const *arg)
+{
+ reconnect(RECON_FALSE);
+ LcpClose();
+ return 0;
+}
+
+static int
+DownCommand(struct cmdargs const *arg)
+{
+ LcpDown();
+ return 0;
+}
+
+static int
+SetModemSpeed(struct cmdargs const *arg)
+{
+ int speed;
+
+ if (arg->argc > 0) {
+ if (strcasecmp(*arg->argv, "sync") == 0) {
+ VarSpeed = 0;
+ return 0;
+ }
+ speed = atoi(*arg->argv);
+ if (IntToSpeed(speed) != B0) {
+ VarSpeed = speed;
+ return 0;
+ }
+ LogPrintf(LogWARN, "%s: Invalid speed\n", *arg->argv);
+ }
+ return -1;
+}
+
+static int
+SetReconnect(struct cmdargs const *arg)
+{
+ if (arg->argc == 2) {
+ VarReconnectTimer = atoi(arg->argv[0]);
+ VarReconnectTries = 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] == '.')) {
+ VarRedialTimeout = -1;
+ randinit();
+ } else {
+ timeout = atoi(arg->argv[0]);
+
+ if (timeout >= 0)
+ VarRedialTimeout = timeout;
+ else {
+ LogPrintf(LogWARN, "Invalid redial timeout\n");
+ return -1;
+ }
+ }
+
+ dot = strchr(arg->argv[0], '.');
+ if (dot) {
+ if (strcasecmp(++dot, "random") == 0) {
+ VarRedialNextTimeout = -1;
+ randinit();
+ } else {
+ timeout = atoi(dot);
+ if (timeout >= 0)
+ VarRedialNextTimeout = timeout;
+ else {
+ LogPrintf(LogWARN, "Invalid next redial timeout\n");
+ return -1;
+ }
+ }
+ } else
+ VarRedialNextTimeout = NEXT_REDIAL_PERIOD; /* Default next timeout */
+
+ if (arg->argc == 2) {
+ tries = atoi(arg->argv[1]);
+
+ if (tries >= 0) {
+ VarDialTries = tries;
+ } else {
+ LogPrintf(LogWARN, "Invalid retry value\n");
+ return 1;
+ }
+ }
+ return 0;
+ }
+ return -1;
+}
+
+static int
+SetStoppedTimeout(struct cmdargs const *arg)
+{
+ LcpFsm.StoppedTimer.load = 0;
+ IpcpFsm.StoppedTimer.load = 0;
+ CcpFsm.StoppedTimer.load = 0;
+ if (arg->argc <= 3) {
+ if (arg->argc > 0) {
+ LcpFsm.StoppedTimer.load = atoi(arg->argv[0]) * SECTICKS;
+ if (arg->argc > 1) {
+ IpcpFsm.StoppedTimer.load = atoi(arg->argv[1]) * SECTICKS;
+ if (arg->argc > 2)
+ CcpFsm.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);
+ VarLocalAuthKey[sizeof VarLocalAuthKey - 1] = '\0';
+ VarHaveLocalAuthKey = 1;
+ }
+ LocalAuthInit();
+
+ if (strcasecmp(port, "none") == 0) {
+ int oserver;
+
+ if (mask != NULL || passwd != NULL)
+ return -1;
+ oserver = server;
+ ServerClose();
+ if (oserver != -1)
+ LogPrintf(LogPHASE, "Disabling 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 ? ChangeParity(*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++)
+ EscMap[code] = 0;
+
+ while (argc-- > 0) {
+ sscanf(*argv++, "%x", &code);
+ code &= 0xff;
+ EscMap[code >> 3] |= (1 << (code & 7));
+ 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]);
+ UpdateIdleTimer(); /* If we're connected, restart the idle timer */
+ 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;
+
+ hp = gethostbyname(cp);
+ if (hp && hp->h_addrtype == AF_INET)
+ memcpy(&ipaddr, hp->h_addr, hp->h_length);
+ else if (inet_aton(cp, &ipaddr) == 0)
+ ipaddr.s_addr = 0;
+ return (ipaddr);
+}
+
+static int
+SetInterfaceAddr(struct cmdargs const *arg)
+{
+ DefMyAddress.ipaddr.s_addr = DefHisAddress.ipaddr.s_addr = 0L;
+
+ if (arg->argc > 4)
+ return -1;
+
+ HaveTriggerAddress = 0;
+ ifnetmask.s_addr = 0;
+
+ if (arg->argc > 0) {
+ if (ParseAddr(arg->argc, arg->argv,
+ &DefMyAddress.ipaddr,
+ &DefMyAddress.mask,
+ &DefMyAddress.width) == 0)
+ return 1;
+ if (arg->argc > 1) {
+ if (ParseAddr(arg->argc, arg->argv+1,
+ &DefHisAddress.ipaddr,
+ &DefHisAddress.mask,
+ &DefHisAddress.width) == 0)
+ return 2;
+ if (arg->argc > 2) {
+ ifnetmask = GetIpAddr(arg->argv[2]);
+ if (arg->argc > 3) {
+ TriggerAddress = GetIpAddr(arg->argv[3]);
+ HaveTriggerAddress = 1;
+ }
+ }
+ }
+ }
+
+ /*
+ * For backwards compatibility, 0.0.0.0 means any address.
+ */
+ if (DefMyAddress.ipaddr.s_addr == 0) {
+ DefMyAddress.mask.s_addr = 0;
+ DefMyAddress.width = 0;
+ }
+ if (DefHisAddress.ipaddr.s_addr == 0) {
+ DefHisAddress.mask.s_addr = 0;
+ DefHisAddress.width = 0;
+ }
+ IpcpInfo.want_ipaddr.s_addr = DefMyAddress.ipaddr.s_addr;
+ IpcpInfo.his_ipaddr.s_addr = DefHisAddress.ipaddr.s_addr;
+
+ if ((mode & MODE_AUTO) &&
+ OsSetIpaddress(DefMyAddress.ipaddr, DefHisAddress.ipaddr, ifnetmask) < 0)
+ 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(&ns_entries[0], &ns_entries[1], arg->argc, arg->argv);
+ return 0;
+}
+
+static int
+SetNBNS(struct cmdargs const *arg)
+{
+ SetMSEXT(&nbns_entries[0], &nbns_entries[1], arg->argc, arg->argv);
+ return 0;
+}
+
+#endif /* MS_EXT */
+
+int
+SetVariable(struct cmdargs const *arg)
+{
+ u_long map;
+ const char *argp;
+ int param = (int)arg->data;
+
+ if (arg->argc > 0)
+ argp = *arg->argv;
+ else
+ argp = "";
+
+ 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:
+ strncpy(VarDialScript, argp, sizeof(VarDialScript) - 1);
+ VarDialScript[sizeof(VarDialScript) - 1] = '\0';
+ break;
+ case VAR_LOGIN:
+ strncpy(VarLoginScript, argp, sizeof(VarLoginScript) - 1);
+ VarLoginScript[sizeof(VarLoginScript) - 1] = '\0';
+ break;
+ case VAR_DEVICE:
+ if (modem != -1)
+ LogPrintf(LogWARN, "Cannot change device to \"%s\" when \"%s\" is open\n",
+ argp, VarDevice);
+ else {
+ strncpy(VarDevice, argp, sizeof(VarDevice) - 1);
+ VarDevice[sizeof(VarDevice) - 1] = '\0';
+ VarBaseDevice = strrchr(VarDevice, '/');
+ VarBaseDevice = VarBaseDevice ? VarBaseDevice + 1 : "";
+ }
+ 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';
+ strcpy(VarPhoneCopy, VarPhoneList);
+ VarNextPhone = VarPhoneCopy;
+ VarAltPhone = NULL;
+ break;
+ case VAR_HANGUP:
+ strncpy(VarHangupScript, argp, sizeof(VarHangupScript) - 1);
+ VarHangupScript[sizeof(VarHangupScript) - 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 (strcmp(*arg->argv, "on") == 0)
+ VarCtsRts = 1;
+ else if (strcmp(*arg->argv, "off") == 0)
+ VarCtsRts = 0;
+ else
+ return -1;
+ return 0;
+ }
+ return -1;
+}
+
+
+static int
+SetOpenMode(struct cmdargs const *arg)
+{
+ if (arg->argc > 0) {
+ if (strcmp(*arg->argv, "active") == 0)
+ VarOpenMode = OPEN_ACTIVE;
+ else if (strcmp(*arg->argv, "passive") == 0)
+ VarOpenMode = OPEN_PASSIVE;
+ else
+ return -1;
+ return 0;
+ }
+ return -1;
+}
+
+static struct cmdtab const SetCommands[] = {
+ {"accmap", NULL, SetVariable, LOCAL_AUTH,
+ "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,
+ "Use CTS/RTS modem signalling", "set ctsrts [on|off]"},
+ {"device", "line", SetVariable, LOCAL_AUTH, "Set modem device name",
+ "set device|line device-name", (const void *) VAR_DEVICE},
+ {"dfilter", NULL, SetDfilter, LOCAL_AUTH,
+ "Set demand filter", "set dfilter ..."},
+ {"dial", NULL, SetVariable, LOCAL_AUTH,
+ "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,
+ "Set escape characters", "set escape hex-digit ..."},
+ {"hangup", NULL, SetVariable, LOCAL_AUTH,
+ "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,
+ "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"},
+ {"ofilter", NULL, SetOfilter, LOCAL_AUTH,
+ "Set output filter", "set ofilter ..."},
+ {"openmode", NULL, SetOpenMode, LOCAL_AUTH,
+ "Set open mode", "set openmode [active|passive]"},
+ {"parity", NULL, SetModemParity, LOCAL_AUTH,
+ "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,
+ "Set Reconnect timeout", "set reconnect value ntries"},
+ {"redial", NULL, SetRedialTimeout, LOCAL_AUTH, "Set Redial timeout",
+ "set redial value|random[.value|random] [dial_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,
+ "Set modem speed", "set speed value"},
+ {"timeout", NULL, SetIdleTimeout, LOCAL_AUTH,
+ "Set Idle timeout", "set timeout value"},
+#ifndef NOMSEXT
+ {"ns", NULL, SetNS, LOCAL_AUTH,
+ "Set NameServer", "set ns pri-addr [sec-addr]"},
+ {"nbns", NULL, SetNBNS, LOCAL_AUTH,
+ "Set NetBIOS NameServer", "set nbns pri-addr [sec-addr]"},
+#endif
+ {"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(SetCommands, arg->argc, arg->argv);
+ else if (VarTerm)
+ fprintf(VarTerm, "Use `set ?' to get a arg->cmd 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;
+
+ if (arg->argc == 3) {
+ if (strcasecmp(arg->argv[0], "MYADDR") == 0)
+ dest = IpcpInfo.want_ipaddr;
+ else
+ dest = GetIpAddr(arg->argv[0]);
+ netmask = GetIpAddr(arg->argv[1]);
+ if (strcasecmp(arg->argv[2], "HISADDR") == 0)
+ gateway = IpcpInfo.his_ipaddr;
+ else
+ gateway = GetIpAddr(arg->argv[2]);
+ OsSetRoute(RTM_ADD, dest, gateway, netmask);
+ return 0;
+ }
+ return -1;
+}
+
+static int
+DeleteCommand(struct cmdargs const *arg)
+{
+ struct in_addr dest, gateway, netmask;
+
+ if (arg->argc == 1 && strcasecmp(arg->argv[0], "all") == 0)
+ DeleteIfRoutes(0);
+ else if (arg->argc > 0 && arg->argc < 4) {
+ if (strcasecmp(arg->argv[0], "MYADDR") == 0)
+ dest = IpcpInfo.want_ipaddr;
+ else
+ dest = GetIpAddr(arg->argv[0]);
+ netmask.s_addr = INADDR_ANY;
+ if (arg->argc > 1) {
+ if (strcasecmp(arg->argv[1], "HISADDR") == 0)
+ gateway = IpcpInfo.his_ipaddr;
+ else
+ gateway = GetIpAddr(arg->argv[1]);
+ if (arg->argc == 3) {
+ if (inet_aton(arg->argv[2], &netmask) == 0) {
+ LogPrintf(LogWARN, "Bad netmask value.\n");
+ return -1;
+ }
+ }
+ } else
+ gateway.s_addr = INADDR_ANY;
+ OsSetRoute(RTM_DELETE, dest, gateway, netmask);
+ } 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(AliasCommands, arg->argc, arg->argv);
+ else if (VarTerm)
+ fprintf(VarTerm, "Use `alias help' to get a arg->cmd 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->data;
+ 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)
+{
+ if (arg->argc > 0)
+ FindExec(AllowCommands, arg->argc, arg->argv);
+ else if (VarTerm)
+ fprintf(VarTerm, "Use `allow ?' to get a arg->cmd or `allow ? <cmd>' for"
+ " syntax help.\n");
+ else
+ LogPrintf(LogWARN, "allow command must have arguments\n");
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-21 22:05:26 +0000