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freebsd-nq/usr.sbin/ppp/command.c
Brian Somers 52c9ca1968 Add ``set log dns'' to log DNS QUERY packets. 
This is invaluable for dial-on-demand connections...
In ppp.linkup:

  set log -dns -tcp/ip

and in ppp.linkdown

  set log +dns +tcp/ip

giving a much better account of why the link came up.
2000-03-14 01:46:49 +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.
*
* $FreeBSD$
*
*/
#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>
#include <sys/un.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#ifdef __OpenBSD__
#include <util.h>
#else
#include <libutil.h>
#endif
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/wait.h>
#include <termios.h>
#include <unistd.h>
#ifndef NONAT
#ifdef __FreeBSD__
#include <alias.h>
#else
#include "alias.h"
#endif
#endif
#include "layer.h"
#include "defs.h"
#include "command.h"
#include "mbuf.h"
#include "log.h"
#include "timer.h"
#include "fsm.h"
#include "lcp.h"
#include "iplist.h"
#include "throughput.h"
#include "slcompress.h"
#include "lqr.h"
#include "hdlc.h"
#include "ipcp.h"
#ifndef NONAT
#include "nat_cmd.h"
#endif
#include "systems.h"
#include "filter.h"
#include "descriptor.h"
#include "main.h"
#include "route.h"
#include "ccp.h"
#include "auth.h"
#include "async.h"
#include "link.h"
#include "physical.h"
#include "mp.h"
#ifndef NORADIUS
#include "radius.h"
#endif
#include "bundle.h"
#include "server.h"
#include "prompt.h"
#include "chat.h"
#include "chap.h"
#include "cbcp.h"
#include "datalink.h"
#include "iface.h"
#include "id.h"
/* ``set'' values */
#define VAR_AUTHKEY 0
#define VAR_DIAL 1
#define VAR_LOGIN 2
#define VAR_AUTHNAME 3
#define VAR_AUTOLOAD 4
#define VAR_WINSIZE 5
#define VAR_DEVICE 6
#define VAR_ACCMAP 7
#define VAR_MRRU 8
#define VAR_MRU 9
#define VAR_MTU 10
#define VAR_OPENMODE 11
#define VAR_PHONE 12
#define VAR_HANGUP 13
#define VAR_IDLETIMEOUT 14
#define VAR_LQRPERIOD 15
#define VAR_LCPRETRY 16
#define VAR_CHAPRETRY 17
#define VAR_PAPRETRY 18
#define VAR_CCPRETRY 19
#define VAR_IPCPRETRY 20
#define VAR_DNS 21
#define VAR_NBNS 22
#define VAR_MODE 23
#define VAR_CALLBACK 24
#define VAR_CBCP 25
#define VAR_CHOKED 26
#define VAR_SENDPIPE 27
#define VAR_RECVPIPE 28
#define VAR_RADIUS 29
#define VAR_CD 30
#define VAR_PARITY 31
#define VAR_CRTSCTS 32
#define VAR_URGENTPORTS 33
#define VAR_LOGOUT 34
/* ``accept|deny|disable|enable'' masks */
#define NEG_HISMASK (1)
#define NEG_MYMASK (2)
/* ``accept|deny|disable|enable'' values */
#define NEG_ACFCOMP 40
#define NEG_CHAP05 41
#define NEG_CHAP80 42
#define NEG_CHAP80LM 43
#define NEG_DEFLATE 44
#define NEG_DNS 45
#define NEG_ENDDISC 46
#define NEG_LQR 47
#define NEG_PAP 48
#define NEG_PPPDDEFLATE 49
#define NEG_PRED1 50
#define NEG_PROTOCOMP 51
#define NEG_SHORTSEQ 52
#define NEG_VJCOMP 53
const char Version[] = "2.26";
static int ShowCommand(struct cmdargs const *);
static int TerminalCommand(struct cmdargs const *);
static int QuitCommand(struct cmdargs const *);
static int OpenCommand(struct cmdargs const *);
static int CloseCommand(struct cmdargs const *);
static int DownCommand(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 NegotiateCommand(struct cmdargs const *);
static int ClearCommand(struct cmdargs const *);
static int RunListCommand(struct cmdargs const *);
static int IfaceAddCommand(struct cmdargs const *);
static int IfaceDeleteCommand(struct cmdargs const *);
static int IfaceClearCommand(struct cmdargs const *);
static int SetProcTitle(struct cmdargs const *);
#ifndef NONAT
static int AliasEnable(struct cmdargs const *);
static int AliasOption(struct cmdargs const *);
#endif
static const char *
showcx(struct cmdtab const *cmd)
{
if (cmd->lauth & LOCAL_CX)
return "(c)";
else if (cmd->lauth & LOCAL_CX_OPT)
return "(o)";
return "";
}
static int
HelpCommand(struct cmdargs const *arg)
{
struct cmdtab const *cmd;
int n, cmax, dmax, cols, cxlen;
const char *cx;
if (!arg->prompt) {
log_Printf(LogWARN, "help: Cannot help without a prompt\n");
return 0;
}
if (arg->argc > arg->argn) {
for (cmd = arg->cmdtab; cmd->name || cmd->alias; cmd++)
if ((cmd->lauth & arg->prompt->auth) &&
((cmd->name && !strcasecmp(cmd->name, arg->argv[arg->argn])) ||
(cmd->alias && !strcasecmp(cmd->alias, arg->argv[arg->argn])))) {
prompt_Printf(arg->prompt, "%s %s\n", cmd->syntax, showcx(cmd));
return 0;
}
return -1;
}
cmax = dmax = 0;
for (cmd = arg->cmdtab; cmd->func; cmd++)
if (cmd->name && (cmd->lauth & arg->prompt->auth)) {
if ((n = strlen(cmd->name) + strlen(showcx(cmd))) > cmax)
cmax = n;
if ((n = strlen(cmd->helpmes)) > dmax)
dmax = n;
}
cols = 80 / (dmax + cmax + 3);
n = 0;
prompt_Printf(arg->prompt, "(o) = Optional context,"
" (c) = Context required\n");
for (cmd = arg->cmdtab; cmd->func; cmd++)
if (cmd->name && (cmd->lauth & arg->prompt->auth)) {
cx = showcx(cmd);
cxlen = cmax - strlen(cmd->name);
if (n % cols != 0)
prompt_Printf(arg->prompt, " ");
prompt_Printf(arg->prompt, "%s%-*.*s: %-*.*s",
cmd->name, cxlen, cxlen, cx, dmax, dmax, cmd->helpmes);
if (++n % cols == 0)
prompt_Printf(arg->prompt, "\n");
}
if (n % cols != 0)
prompt_Printf(arg->prompt, "\n");
return 0;
}
static int
CloneCommand(struct cmdargs const *arg)
{
char namelist[LINE_LEN];
char *name;
int f;
if (arg->argc == arg->argn)
return -1;
namelist[sizeof namelist - 1] = '\0';
for (f = arg->argn; f < arg->argc; f++) {
strncpy(namelist, arg->argv[f], sizeof namelist - 1);
for(name = strtok(namelist, ", "); name; name = strtok(NULL,", "))
bundle_DatalinkClone(arg->bundle, arg->cx, name);
}
return 0;
}
static int
RemoveCommand(struct cmdargs const *arg)
{
if (arg->argc != arg->argn)
return -1;
if (arg->cx->state != DATALINK_CLOSED) {
log_Printf(LogWARN, "remove: Cannot delete links that aren't closed\n");
return 2;
}
bundle_DatalinkRemove(arg->bundle, arg->cx);
return 0;
}
static int
RenameCommand(struct cmdargs const *arg)
{
if (arg->argc != arg->argn + 1)
return -1;
if (bundle_RenameDatalink(arg->bundle, arg->cx, arg->argv[arg->argn]))
return 0;
log_Printf(LogWARN, "%s -> %s: target name already exists\n",
arg->cx->name, arg->argv[arg->argn]);
return 1;
}
int
LoadCommand(struct cmdargs const *arg)
{
const char *err;
int n, mode;
mode = arg->bundle->phys_type.all;
if (arg->argn < arg->argc) {
for (n = arg->argn; n < arg->argc; n++)
if ((err = system_IsValid(arg->argv[n], arg->prompt, mode)) != NULL) {
log_Printf(LogWARN, "%s: %s\n", arg->argv[n], err);
return 1;
}
for (n = arg->argn; n < arg->argc; n++) {
bundle_SetLabel(arg->bundle, arg->argv[arg->argc - 1]);
system_Select(arg->bundle, arg->argv[n], CONFFILE, arg->prompt, arg->cx);
}
bundle_SetLabel(arg->bundle, arg->argv[arg->argc - 1]);
} else if ((err = system_IsValid("default", arg->prompt, mode)) != NULL) {
log_Printf(LogWARN, "default: %s\n", err);
return 1;
} else {
bundle_SetLabel(arg->bundle, "default");
system_Select(arg->bundle, "default", CONFFILE, arg->prompt, arg->cx);
bundle_SetLabel(arg->bundle, "default");
}
return 0;
}
int
SaveCommand(struct cmdargs const *arg)
{
log_Printf(LogWARN, "save command is not implemented (yet).\n");
return 1;
}
static int
DialCommand(struct cmdargs const *arg)
{
int res;
if ((arg->cx && !(arg->cx->physical->type & (PHYS_INTERACTIVE|PHYS_AUTO)))
|| (!arg->cx &&
(arg->bundle->phys_type.all & ~(PHYS_INTERACTIVE|PHYS_AUTO)))) {
log_Printf(LogWARN, "Manual dial is only available for auto and"
" interactive links\n");
return 1;
}
if (arg->argc > arg->argn && (res = LoadCommand(arg)) != 0)
return res;
bundle_Open(arg->bundle, arg->cx ? arg->cx->name : NULL, PHYS_ALL, 1);
return 0;
}
#define isinword(ch) (isalnum(ch) || (ch) == '_')
static char *
strstrword(char *big, const char *little)
{
/* Get the first occurance of the word ``little'' in ``big'' */
char *pos;
int len;
pos = big;
len = strlen(little);
while ((pos = strstr(pos, little)) != NULL)
if ((pos != big && isinword(pos[-1])) || isinword(pos[len]))
pos++;
else if (pos != big && pos[-1] == '\\')
memmove(pos - 1, pos, strlen(pos) + 1);
else
break;
return pos;
}
static char *
subst(char *tgt, const char *oldstr, const char *newstr)
{
/* tgt is a malloc()d area... realloc() as necessary */
char *word, *ntgt;
int ltgt, loldstr, lnewstr, pos;
if ((word = strstrword(tgt, oldstr)) == NULL)
return tgt;
ltgt = strlen(tgt) + 1;
loldstr = strlen(oldstr);
lnewstr = strlen(newstr);
do {
pos = word - tgt;
if (loldstr > lnewstr)
bcopy(word + loldstr, word + lnewstr, ltgt - pos - loldstr);
if (loldstr != lnewstr) {
ntgt = realloc(tgt, ltgt += lnewstr - loldstr);
if (ntgt == NULL)
break; /* Oh wonderful ! */
word = ntgt + pos;
tgt = ntgt;
}
if (lnewstr > loldstr)
bcopy(word + loldstr, word + lnewstr, ltgt - pos - loldstr);
bcopy(newstr, word, lnewstr);
} while ((word = strstrword(word, oldstr)));
return tgt;
}
void
command_Expand(char **nargv, int argc, char const *const *oargv,
struct bundle *bundle, int inc0, pid_t pid)
{
int arg;
char pidstr[12];
if (inc0)
arg = 0; /* Start at arg 0 */
else {
nargv[0] = strdup(oargv[0]);
arg = 1;
}
snprintf(pidstr, sizeof pidstr, "%d", (int)pid);
for (; arg < argc; arg++) {
nargv[arg] = strdup(oargv[arg]);
nargv[arg] = subst(nargv[arg], "HISADDR",
inet_ntoa(bundle->ncp.ipcp.peer_ip));
nargv[arg] = subst(nargv[arg], "AUTHNAME", bundle->cfg.auth.name);
nargv[arg] = subst(nargv[arg], "INTERFACE", bundle->iface->name);
nargv[arg] = subst(nargv[arg], "MYADDR", inet_ntoa(bundle->ncp.ipcp.my_ip));
nargv[arg] = subst(nargv[arg], "USER", bundle->ncp.mp.peer.authname);
nargv[arg] = subst(nargv[arg], "PEER_ENDDISC",
mp_Enddisc(bundle->ncp.mp.peer.enddisc.class,
bundle->ncp.mp.peer.enddisc.address,
bundle->ncp.mp.peer.enddisc.len));
nargv[arg] = subst(nargv[arg], "ENDDISC",
mp_Enddisc(bundle->ncp.mp.cfg.enddisc.class,
bundle->ncp.mp.cfg.enddisc.address,
bundle->ncp.mp.cfg.enddisc.len));
nargv[arg] = subst(nargv[arg], "PROCESSID", pidstr);
nargv[arg] = subst(nargv[arg], "LABEL", bundle_GetLabel(bundle));
}
nargv[arg] = NULL;
}
static int
ShellCommand(struct cmdargs const *arg, int bg)
{
const char *shell;
pid_t shpid, pid;
#ifdef SHELL_ONLY_INTERACTIVELY
/* we're only allowed to shell when we run ppp interactively */
if (arg->prompt && arg->prompt->owner) {
log_Printf(LogWARN, "Can't start a shell from a network connection\n");
return 1;
}
#endif
if (arg->argc == arg->argn) {
if (!arg->prompt) {
log_Printf(LogWARN, "Can't start an interactive shell from"
" a config file\n");
return 1;
} else if (arg->prompt->owner) {
log_Printf(LogWARN, "Can't start an interactive shell from"
" a socket connection\n");
return 1;
} else if (bg) {
log_Printf(LogWARN, "Can only start an interactive shell in"
" the foreground mode\n");
return 1;
}
}
pid = getpid();
if ((shpid = fork()) == 0) {
int i, fd;
if ((shell = getenv("SHELL")) == 0)
shell = _PATH_BSHELL;
timer_TermService();
if (arg->prompt)
fd = arg->prompt->fd_out;
else if ((fd = open(_PATH_DEVNULL, O_RDWR)) == -1) {
log_Printf(LogALERT, "Failed to open %s: %s\n",
_PATH_DEVNULL, strerror(errno));
exit(1);
}
dup2(fd, STDIN_FILENO);
dup2(fd, STDOUT_FILENO);
dup2(fd, STDERR_FILENO);
for (i = getdtablesize(); i > STDERR_FILENO; i--)
fcntl(i, F_SETFD, 1);
setuid(ID0realuid());
if (arg->argc > arg->argn) {
/* substitute pseudo args */
char *argv[MAXARGS];
int argc = arg->argc - arg->argn;
if (argc >= sizeof argv / sizeof argv[0]) {
argc = sizeof argv / sizeof argv[0] - 1;
log_Printf(LogWARN, "Truncating shell command to %d args\n", argc);
}
command_Expand(argv, argc, arg->argv + arg->argn, arg->bundle, 0, pid);
if (bg) {
pid_t p;
p = getpid();
if (daemon(1, 1) == -1) {
log_Printf(LogERROR, "%d: daemon: %s\n", (int)p, strerror(errno));
exit(1);
}
} else if (arg->prompt)
printf("ppp: Pausing until %s finishes\n", arg->argv[arg->argn]);
execvp(argv[0], argv);
} else {
if (arg->prompt)
printf("ppp: Pausing until %s finishes\n", shell);
prompt_TtyOldMode(arg->prompt);
execl(shell, shell, NULL);
}
log_Printf(LogWARN, "exec() of %s failed: %s\n",
arg->argc > arg->argn ? arg->argv[arg->argn] : shell,
strerror(errno));
_exit(255);
}
if (shpid == (pid_t) - 1)
log_Printf(LogERROR, "Fork failed: %s\n", strerror(errno));
else {
int status;
waitpid(shpid, &status, 0);
}
if (arg->prompt && !arg->prompt->owner)
prompt_TtyCommandMode(arg->prompt);
return 0;
}
static int
BgShellCommand(struct cmdargs const *arg)
{
if (arg->argc == arg->argn)
return -1;
return ShellCommand(arg, 1);
}
static int
FgShellCommand(struct cmdargs const *arg)
{
return ShellCommand(arg, 0);
}
#ifndef NONAT
static struct cmdtab const AliasCommands[] =
{
{"addr", NULL, nat_RedirectAddr, LOCAL_AUTH,
"static address translation", "nat addr [addr_local addr_alias]"},
{"deny_incoming", NULL, AliasOption, LOCAL_AUTH,
"stop incoming connections", "nat deny_incoming yes|no",
(const void *) PKT_ALIAS_DENY_INCOMING},
{"enable", NULL, AliasEnable, LOCAL_AUTH,
"enable NAT", "nat enable yes|no"},
{"log", NULL, AliasOption, LOCAL_AUTH,
"log NAT link creation", "nat log yes|no",
(const void *) PKT_ALIAS_LOG},
{"port", NULL, nat_RedirectPort, LOCAL_AUTH, "port redirection",
"nat port proto localaddr:port[-port] aliasport[-aliasport]"},
{"pptp", NULL, nat_Pptp, LOCAL_AUTH,
"Set the PPTP address", "nat pptp IP"},
{"proxy", NULL, nat_ProxyRule, LOCAL_AUTH,
"proxy control", "nat proxy server host[:port] ..."},
{"same_ports", NULL, AliasOption, LOCAL_AUTH,
"try to leave port numbers unchanged", "nat same_ports yes|no",
(const void *) PKT_ALIAS_SAME_PORTS},
{"unregistered_only", NULL, AliasOption, LOCAL_AUTH,
"translate unregistered (private) IP address space only",
"nat unregistered_only yes|no",
(const void *) PKT_ALIAS_UNREGISTERED_ONLY},
{"use_sockets", NULL, AliasOption, LOCAL_AUTH,
"allocate host sockets", "nat use_sockets yes|no",
(const void *) PKT_ALIAS_USE_SOCKETS},
{"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
"Display this message", "nat help|? [command]", AliasCommands},
{NULL, NULL, NULL},
};
#endif
static struct cmdtab const AllowCommands[] = {
{"modes", "mode", AllowModes, LOCAL_AUTH,
"Only allow certain ppp modes", "allow modes mode..."},
{"users", "user", AllowUsers, LOCAL_AUTH,
"Only allow ppp access to certain users", "allow users logname..."},
{"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
"Display this message", "allow help|? [command]", AllowCommands},
{NULL, NULL, NULL},
};
static struct cmdtab const IfaceCommands[] =
{
{"add", NULL, IfaceAddCommand, LOCAL_AUTH,
"Add iface address", "iface add addr[/bits| mask] peer", NULL},
{NULL, "add!", IfaceAddCommand, LOCAL_AUTH,
"Add or change an iface address", "iface add! addr[/bits| mask] peer",
(void *)1},
{"clear", NULL, IfaceClearCommand, LOCAL_AUTH,
"Clear iface address(es)", "iface clear"},
{"delete", "rm", IfaceDeleteCommand, LOCAL_AUTH,
"Delete iface address", "iface delete addr", NULL},
{NULL, "rm!", IfaceDeleteCommand, LOCAL_AUTH,
"Delete iface address", "iface delete addr", (void *)1},
{NULL, "delete!", IfaceDeleteCommand, LOCAL_AUTH,
"Delete iface address", "iface delete addr", (void *)1},
{"show", NULL, iface_Show, LOCAL_AUTH,
"Show iface address(es)", "iface show"},
{"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
"Display this message", "nat help|? [command]", IfaceCommands},
{NULL, NULL, NULL},
};
static struct cmdtab const Commands[] = {
{"accept", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT,
"accept option request", "accept option .."},
{"add", NULL, AddCommand, LOCAL_AUTH,
"add route", "add dest mask gateway", NULL},
{NULL, "add!", AddCommand, LOCAL_AUTH,
"add or change route", "add! dest mask gateway", (void *)1},
{"allow", "auth", RunListCommand, LOCAL_AUTH,
"Allow ppp access", "allow users|modes ....", AllowCommands},
{"bg", "!bg", BgShellCommand, LOCAL_AUTH,
"Run a background command", "[!]bg command"},
{"clear", NULL, ClearCommand, LOCAL_AUTH | LOCAL_CX_OPT,
"Clear throughput statistics",
"clear ipcp|physical [current|overall|peak]..."},
{"clone", NULL, CloneCommand, LOCAL_AUTH | LOCAL_CX,
"Clone a link", "clone newname..."},
{"close", NULL, CloseCommand, LOCAL_AUTH | LOCAL_CX_OPT,
"Close an FSM", "close [lcp|ccp]"},
{"delete", NULL, DeleteCommand, LOCAL_AUTH,
"delete route", "delete dest", NULL},
{NULL, "delete!", DeleteCommand, LOCAL_AUTH,
"delete a route if it exists", "delete! dest", (void *)1},
{"deny", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT,
"Deny option request", "deny option .."},
{"dial", "call", DialCommand, LOCAL_AUTH | LOCAL_CX_OPT,
"Dial and login", "dial|call [system ...]", NULL},
{"disable", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT,
"Disable option", "disable option .."},
{"down", NULL, DownCommand, LOCAL_AUTH | LOCAL_CX_OPT,
"Generate a down event", "down [ccp|lcp]"},
{"enable", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT,
"Enable option", "enable option .."},
{"iface", "interface", RunListCommand, LOCAL_AUTH,
"interface control", "iface option ...", IfaceCommands},
{"link", "datalink", LinkCommand, LOCAL_AUTH,
"Link specific commands", "link name command ..."},
{"load", NULL, LoadCommand, LOCAL_AUTH | LOCAL_CX_OPT,
"Load settings", "load [system ...]"},
#ifndef NONAT
{"nat", "alias", RunListCommand, LOCAL_AUTH,
"NAT control", "nat option yes|no", AliasCommands},
#endif
{"open", NULL, OpenCommand, LOCAL_AUTH | LOCAL_CX_OPT,
"Open an FSM", "open! [lcp|ccp|ipcp]", (void *)1},
{"passwd", NULL, PasswdCommand, LOCAL_NO_AUTH,
"Password for manipulation", "passwd LocalPassword"},
{"quit", "bye", QuitCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
"Quit PPP program", "quit|bye [all]"},
{"remove", "rm", RemoveCommand, LOCAL_AUTH | LOCAL_CX,
"Remove a link", "remove"},
{"rename", "mv", RenameCommand, LOCAL_AUTH | LOCAL_CX,
"Rename a link", "rename name"},
{"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 | LOCAL_CX_OPT,
"Show status and stats", "show var"},
{"term", NULL, TerminalCommand, LOCAL_AUTH | LOCAL_CX,
"Enter terminal mode", "term"},
{"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
"Display this message", "help|? [command]", Commands},
{NULL, NULL, NULL},
};
static int
ShowEscape(struct cmdargs const *arg)
{
if (arg->cx->physical->async.cfg.EscMap[32]) {
int code, bit;
const 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(arg->prompt, "%s0x%02x", sep, (code << 3) + bit);
sep = ", ";
}
prompt_Printf(arg->prompt, "\n");
}
return 0;
}
static int
ShowTimerList(struct cmdargs const *arg)
{
timer_Show(0, arg->prompt);
return 0;
}
static int
ShowStopped(struct cmdargs const *arg)
{
prompt_Printf(arg->prompt, " Stopped Timer: LCP: ");
if (!arg->cx->physical->link.lcp.fsm.StoppedTimer.load)
prompt_Printf(arg->prompt, "Disabled");
else
prompt_Printf(arg->prompt, "%ld secs",
arg->cx->physical->link.lcp.fsm.StoppedTimer.load / SECTICKS);
prompt_Printf(arg->prompt, ", CCP: ");
if (!arg->cx->physical->link.ccp.fsm.StoppedTimer.load)
prompt_Printf(arg->prompt, "Disabled");
else
prompt_Printf(arg->prompt, "%ld secs",
arg->cx->physical->link.ccp.fsm.StoppedTimer.load / SECTICKS);
prompt_Printf(arg->prompt, "\n");
return 0;
}
static int
ShowVersion(struct cmdargs const *arg)
{
prompt_Printf(arg->prompt, "PPP Version %s - %s\n", Version, __DATE__);
return 0;
}
static int
ShowProtocolStats(struct cmdargs const *arg)
{
struct link *l = command_ChooseLink(arg);
prompt_Printf(arg->prompt, "%s:\n", l->name);
link_ReportProtocolStatus(l, arg->prompt);
return 0;
}
static struct cmdtab const ShowCommands[] = {
{"bundle", NULL, bundle_ShowStatus, LOCAL_AUTH,
"bundle details", "show bundle"},
{"ccp", NULL, ccp_ReportStatus, LOCAL_AUTH | LOCAL_CX_OPT,
"CCP status", "show cpp"},
{"compress", NULL, sl_Show, LOCAL_AUTH,
"VJ compression stats", "show compress"},
{"escape", NULL, ShowEscape, LOCAL_AUTH | LOCAL_CX,
"escape characters", "show escape"},
{"filter", NULL, filter_Show, LOCAL_AUTH,
"packet filters", "show filter [in|out|dial|alive]"},
{"hdlc", NULL, hdlc_ReportStatus, LOCAL_AUTH | LOCAL_CX,
"HDLC errors", "show hdlc"},
{"iface", "interface", iface_Show, LOCAL_AUTH,
"Interface status", "show iface"},
{"ipcp", NULL, ipcp_Show, LOCAL_AUTH,
"IPCP status", "show ipcp"},
{"layers", NULL, link_ShowLayers, LOCAL_AUTH | LOCAL_CX_OPT,
"Protocol layers", "show layers"},
{"lcp", NULL, lcp_ReportStatus, LOCAL_AUTH | LOCAL_CX,
"LCP status", "show lcp"},
{"link", "datalink", datalink_Show, LOCAL_AUTH | LOCAL_CX,
"(high-level) link info", "show link"},
{"links", NULL, bundle_ShowLinks, LOCAL_AUTH,
"available link names", "show links"},
{"log", NULL, log_ShowLevel, LOCAL_AUTH,
"log levels", "show log"},
{"mem", NULL, mbuf_Show, LOCAL_AUTH,
"mbuf allocations", "show mem"},
{"physical", NULL, physical_ShowStatus, LOCAL_AUTH | LOCAL_CX,
"(low-level) link info", "show physical"},
{"mp", "multilink", mp_ShowStatus, LOCAL_AUTH,
"multilink setup", "show mp"},
{"proto", NULL, ShowProtocolStats, LOCAL_AUTH | LOCAL_CX_OPT,
"protocol summary", "show proto"},
{"route", NULL, route_Show, LOCAL_AUTH,
"routing table", "show route"},
{"stopped", NULL, ShowStopped, LOCAL_AUTH | LOCAL_CX,
"STOPPED timeout", "show stopped"},
{"timers", NULL, ShowTimerList, LOCAL_AUTH,
"alarm timers", "show timers"},
{"version", NULL, ShowVersion, LOCAL_NO_AUTH | LOCAL_AUTH,
"version string", "show version"},
{"who", NULL, log_ShowWho, LOCAL_AUTH,
"client list", "show who"},
{"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 const char *
mkPrefix(int argc, char const *const *argv, char *tgt, int sz)
{
int f, tlen, len;
tlen = 0;
for (f = 0; f < argc && tlen < sz - 2; f++) {
if (f)
tgt[tlen++] = ' ';
len = strlen(argv[f]);
if (len > sz - tlen - 1)
len = sz - tlen - 1;
strncpy(tgt+tlen, argv[f], len);
tlen += len;
}
tgt[tlen] = '\0';
return tgt;
}
static int
FindExec(struct bundle *bundle, struct cmdtab const *cmds, int argc, int argn,
char const *const *argv, struct prompt *prompt, struct datalink *cx)
{
struct cmdtab const *cmd;
int val = 1;
int nmatch;
struct cmdargs arg;
char prefix[100];
cmd = FindCommand(cmds, argv[argn], &nmatch);
if (nmatch > 1)
log_Printf(LogWARN, "%s: Ambiguous command\n",
mkPrefix(argn+1, argv, prefix, sizeof prefix));
else if (cmd && (!prompt || (cmd->lauth & prompt->auth))) {
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)
log_Printf(LogWARN, "%s: No context (use the `link' command)\n",
mkPrefix(argn+1, argv, prefix, sizeof prefix));
else {
if (cx && !(cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) {
log_Printf(LogWARN, "%s: Redundant context (%s) ignored\n",
mkPrefix(argn+1, argv, prefix, sizeof prefix), cx->name);
cx = NULL;
}
arg.cmdtab = cmds;
arg.cmd = cmd;
arg.argc = argc;
arg.argn = argn+1;
arg.argv = argv;
arg.bundle = bundle;
arg.cx = cx;
arg.prompt = prompt;
val = (*cmd->func) (&arg);
}
} else
log_Printf(LogWARN, "%s: Invalid command\n",
mkPrefix(argn+1, argv, prefix, sizeof prefix));
if (val == -1)
log_Printf(LogWARN, "Usage: %s\n", cmd->syntax);
else if (val)
log_Printf(LogWARN, "%s: Failed %d\n",
mkPrefix(argn+1, argv, prefix, sizeof prefix), val);
return val;
}
int
command_Interpret(char *buff, int nb, char *argv[MAXARGS])
{
char *cp;
if (nb > 0) {
cp = buff + strcspn(buff, "\r\n");
if (cp)
*cp = '\0';
return MakeArgs(buff, argv, MAXARGS, PARSE_REDUCE);
}
return 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;
/* set server port xxxxx .... */
if (n == 3 && !strncasecmp(argv[0], "se", 2) &&
!strncasecmp(argv[1], "se", 2))
return 1;
return 0;
}
void
command_Run(struct bundle *bundle, int argc, char const *const *argv,
struct prompt *prompt, const char *label, struct datalink *cx)
{
if (argc > 0) {
if (log_IsKept(LogCOMMAND)) {
char buf[LINE_LEN];
int f, n;
if (label) {
strncpy(buf, label, sizeof buf - 3);
buf[sizeof buf - 3] = '\0';
strcat(buf, ": ");
n = strlen(buf);
} else {
*buf = '\0';
n = 0;
}
buf[sizeof buf - 1] = '\0'; /* In case we run out of room in buf */
for (f = 0; f < argc; f++) {
if (n < sizeof buf - 1 && f)
buf[n++] = ' ';
if (arghidden(argc, argv, f))
strncpy(buf+n, "********", sizeof buf - n - 1);
else
strncpy(buf+n, argv[f], sizeof buf - n - 1);
n += strlen(buf+n);
}
log_Printf(LogCOMMAND, "%s\n", buf);
}
FindExec(bundle, Commands, argc, 0, argv, prompt, cx);
}
}
int
command_Decode(struct bundle *bundle, char *buff, int nb, struct prompt *prompt,
const char *label)
{
int argc;
char *argv[MAXARGS];
if ((argc = command_Interpret(buff, nb, argv)) < 0)
return 0;
command_Run(bundle, argc, (char const *const *)argv, prompt, label, NULL);
return 1;
}
static int
ShowCommand(struct cmdargs const *arg)
{
if (!arg->prompt)
log_Printf(LogWARN, "show: Cannot show without a prompt\n");
else if (arg->argc > arg->argn)
FindExec(arg->bundle, ShowCommands, arg->argc, arg->argn, arg->argv,
arg->prompt, arg->cx);
else
prompt_Printf(arg->prompt, "Use ``show ?'' to get a list.\n");
return 0;
}
static int
TerminalCommand(struct cmdargs const *arg)
{
if (!arg->prompt) {
log_Printf(LogWARN, "term: Need a prompt\n");
return 1;
}
if (arg->cx->physical->link.lcp.fsm.state > ST_CLOSED) {
prompt_Printf(arg->prompt, "LCP state is [%s]\n",
State2Nam(arg->cx->physical->link.lcp.fsm.state));
return 1;
}
datalink_Up(arg->cx, 0, 0);
prompt_TtyTermMode(arg->prompt, arg->cx);
return 0;
}
static int
QuitCommand(struct cmdargs const *arg)
{
if (!arg->prompt || prompt_IsController(arg->prompt) ||
(arg->argc > arg->argn && !strcasecmp(arg->argv[arg->argn], "all") &&
(arg->prompt->auth & LOCAL_AUTH)))
Cleanup(EX_NORMAL);
if (arg->prompt)
prompt_Destroy(arg->prompt, 1);
return 0;
}
static int
OpenCommand(struct cmdargs const *arg)
{
if (arg->argc == arg->argn)
bundle_Open(arg->bundle, arg->cx ? arg->cx->name : NULL, PHYS_ALL, 1);
else if (arg->argc == arg->argn + 1) {
if (!strcasecmp(arg->argv[arg->argn], "lcp")) {
struct datalink *cx = arg->cx ?
arg->cx : bundle2datalink(arg->bundle, NULL);
if (cx) {
if (cx->physical->link.lcp.fsm.state == ST_OPENED)
fsm_Reopen(&cx->physical->link.lcp.fsm);
else
bundle_Open(arg->bundle, cx->name, PHYS_ALL, 1);
} else
log_Printf(LogWARN, "open lcp: You must specify a link\n");
} else if (!strcasecmp(arg->argv[arg->argn], "ccp")) {
struct fsm *fp;
fp = &command_ChooseLink(arg)->ccp.fsm;
if (fp->link->lcp.fsm.state != ST_OPENED)
log_Printf(LogWARN, "open: LCP must be open before opening CCP\n");
else if (fp->state == ST_OPENED)
fsm_Reopen(fp);
else {
fp->open_mode = 0; /* Not passive any more */
if (fp->state == ST_STOPPED) {
fsm_Down(fp);
fsm_Up(fp);
} else {
fsm_Up(fp);
fsm_Open(fp);
}
}
} else if (!strcasecmp(arg->argv[arg->argn], "ipcp")) {
if (arg->cx)
log_Printf(LogWARN, "open ipcp: You need not specify a link\n");
if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED)
fsm_Reopen(&arg->bundle->ncp.ipcp.fsm);
else
bundle_Open(arg->bundle, NULL, PHYS_ALL, 1);
} else
return -1;
} else
return -1;
return 0;
}
static int
CloseCommand(struct cmdargs const *arg)
{
if (arg->argc == arg->argn)
bundle_Close(arg->bundle, arg->cx ? arg->cx->name : NULL, CLOSE_STAYDOWN);
else if (arg->argc == arg->argn + 1) {
if (!strcasecmp(arg->argv[arg->argn], "lcp"))
bundle_Close(arg->bundle, arg->cx ? arg->cx->name : NULL, CLOSE_LCP);
else if (!strcasecmp(arg->argv[arg->argn], "ccp") ||
!strcasecmp(arg->argv[arg->argn], "ccp!")) {
struct fsm *fp;
fp = &command_ChooseLink(arg)->ccp.fsm;
if (fp->state == ST_OPENED) {
fsm_Close(fp);
if (arg->argv[arg->argn][3] == '!')
fp->open_mode = 0; /* Stay ST_CLOSED */
else
fp->open_mode = OPEN_PASSIVE; /* Wait for the peer to start */
}
} else
return -1;
} else
return -1;
return 0;
}
static int
DownCommand(struct cmdargs const *arg)
{
if (arg->argc == arg->argn) {
if (arg->cx)
datalink_Down(arg->cx, CLOSE_STAYDOWN);
else
bundle_Down(arg->bundle, CLOSE_STAYDOWN);
} else if (arg->argc == arg->argn + 1) {
if (!strcasecmp(arg->argv[arg->argn], "lcp")) {
if (arg->cx)
datalink_Down(arg->cx, CLOSE_LCP);
else
bundle_Down(arg->bundle, CLOSE_LCP);
} else if (!strcasecmp(arg->argv[arg->argn], "ccp")) {
struct fsm *fp = arg->cx ? &arg->cx->physical->link.ccp.fsm :
&arg->bundle->ncp.mp.link.ccp.fsm;
fsm2initial(fp);
} else
return -1;
} else
return -1;
return 0;
}
static int
SetModemSpeed(struct cmdargs const *arg)
{
long speed;
char *end;
if (arg->argc > arg->argn && *arg->argv[arg->argn]) {
if (arg->argc > arg->argn+1) {
log_Printf(LogWARN, "SetModemSpeed: Too many arguments\n");
return -1;
}
if (strcasecmp(arg->argv[arg->argn], "sync") == 0) {
physical_SetSync(arg->cx->physical);
return 0;
}
end = NULL;
speed = strtol(arg->argv[arg->argn], &end, 10);
if (*end) {
log_Printf(LogWARN, "SetModemSpeed: Bad argument \"%s\"",
arg->argv[arg->argn]);
return -1;
}
if (physical_SetSpeed(arg->cx->physical, speed))
return 0;
log_Printf(LogWARN, "%s: Invalid speed\n", arg->argv[arg->argn]);
} else
log_Printf(LogWARN, "SetModemSpeed: No speed specified\n");
return -1;
}
static int
SetStoppedTimeout(struct cmdargs const *arg)
{
struct link *l = &arg->cx->physical->link;
l->lcp.fsm.StoppedTimer.load = 0;
l->ccp.fsm.StoppedTimer.load = 0;
if (arg->argc <= arg->argn+2) {
if (arg->argc > arg->argn) {
l->lcp.fsm.StoppedTimer.load = atoi(arg->argv[arg->argn]) * SECTICKS;
if (arg->argc > arg->argn+1)
l->ccp.fsm.StoppedTimer.load = atoi(arg->argv[arg->argn+1]) * SECTICKS;
}
return 0;
}
return -1;
}
static int
SetServer(struct cmdargs const *arg)
{
int res = -1;
if (arg->argc > arg->argn && arg->argc < arg->argn+4) {
const char *port, *passwd, *mask;
int mlen;
/* What's what ? */
port = arg->argv[arg->argn];
if (arg->argc == arg->argn + 2) {
passwd = arg->argv[arg->argn+1];
mask = NULL;
} else if (arg->argc == arg->argn + 3) {
passwd = arg->argv[arg->argn+1];
mask = arg->argv[arg->argn+2];
mlen = strlen(mask);
if (mlen == 0 || mlen > 4 || strspn(mask, "01234567") != mlen ||
(mlen == 4 && *mask != '0')) {
log_Printf(LogWARN, "%s %s: %s: Invalid mask\n",
arg->argv[arg->argn - 2], arg->argv[arg->argn - 1], mask);
return -1;
}
} else if (strcasecmp(port, "none") == 0) {
if (server_Close(arg->bundle))
log_Printf(LogPHASE, "Disabled server port.\n");
return 0;
} else
return -1;
strncpy(server.passwd, passwd, sizeof server.passwd - 1);
server.passwd[sizeof server.passwd - 1] = '\0';
if (*port == '/') {
mode_t imask;
char *ptr, name[LINE_LEN + 12];
if (mask == NULL)
imask = (mode_t)-1;
else for (imask = mlen = 0; mask[mlen]; mlen++)
imask = (imask * 8) + mask[mlen] - '0';
ptr = strstr(port, "%d");
if (ptr) {
snprintf(name, sizeof name, "%.*s%d%s",
(int)(ptr - port), port, arg->bundle->unit, ptr + 2);
port = name;
}
res = server_LocalOpen(arg->bundle, port, imask);
} else {
int iport, add = 0;
if (mask != NULL)
return -1;
if (*port == '+') {
port++;
add = 1;
}
if (strspn(port, "0123456789") != strlen(port)) {
struct servent *s;
if ((s = getservbyname(port, "tcp")) == NULL) {
iport = 0;
log_Printf(LogWARN, "%s: Invalid port or service\n", port);
} else
iport = ntohs(s->s_port);
} else
iport = atoi(port);
if (iport) {
if (add)
iport += arg->bundle->unit;
res = server_TcpOpen(arg->bundle, iport);
} else
res = -1;
}
}
return res;
}
static int
SetEscape(struct cmdargs const *arg)
{
int code;
int argc = arg->argc - arg->argn;
char const *const *argv = arg->argv + arg->argn;
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
SetInterfaceAddr(struct cmdargs const *arg)
{
struct ipcp *ipcp = &arg->bundle->ncp.ipcp;
const char *hisaddr;
if (arg->argc > arg->argn + 4)
return -1;
hisaddr = NULL;
memset(&ipcp->cfg.my_range, '\0', sizeof ipcp->cfg.my_range);
memset(&ipcp->cfg.peer_range, '\0', sizeof ipcp->cfg.peer_range);
ipcp->cfg.HaveTriggerAddress = 0;
ipcp->cfg.netmask.s_addr = INADDR_ANY;
iplist_reset(&ipcp->cfg.peer_list);
if (arg->argc > arg->argn) {
if (!ParseAddr(ipcp, arg->argv[arg->argn],
&ipcp->cfg.my_range.ipaddr, &ipcp->cfg.my_range.mask,
&ipcp->cfg.my_range.width))
return 1;
if (arg->argc > arg->argn+1) {
hisaddr = arg->argv[arg->argn+1];
if (arg->argc > arg->argn+2) {
ipcp->ifmask = ipcp->cfg.netmask = GetIpAddr(arg->argv[arg->argn+2]);
if (arg->argc > arg->argn+3) {
ipcp->cfg.TriggerAddress = GetIpAddr(arg->argv[arg->argn+3]);
ipcp->cfg.HaveTriggerAddress = 1;
}
}
}
}
/* 0.0.0.0 means any address (0 bits) */
if (ipcp->cfg.my_range.ipaddr.s_addr == INADDR_ANY) {
ipcp->cfg.my_range.mask.s_addr = INADDR_ANY;
ipcp->cfg.my_range.width = 0;
}
ipcp->my_ip.s_addr = ipcp->cfg.my_range.ipaddr.s_addr;
bundle_AdjustFilters(arg->bundle, &ipcp->my_ip, NULL);
if (hisaddr && !ipcp_UseHisaddr(arg->bundle, hisaddr,
arg->bundle->phys_type.all & PHYS_AUTO))
return 4;
return 0;
}
static int
SetRetry(int argc, char const *const *argv, u_int *timeout, u_int *maxreq,
u_int *maxtrm, int def)
{
if (argc == 0) {
*timeout = DEF_FSMRETRY;
*maxreq = def;
if (maxtrm != NULL)
*maxtrm = def;
} else {
long l = atol(argv[0]);
if (l < MIN_FSMRETRY) {
log_Printf(LogWARN, "%ld: Invalid FSM retry period - min %d\n",
l, MIN_FSMRETRY);
return 1;
} else
*timeout = l;
if (argc > 1) {
l = atol(argv[1]);
if (l < 1) {
log_Printf(LogWARN, "%ld: Invalid FSM REQ tries - changed to 1\n", l);
l = 1;
}
*maxreq = l;
if (argc > 2 && maxtrm != NULL) {
l = atol(argv[2]);
if (l < 1) {
log_Printf(LogWARN, "%ld: Invalid FSM TRM tries - changed to 1\n", l);
l = 1;
}
*maxtrm = l;
}
}
}
return 0;
}
static int
SetVariable(struct cmdargs const *arg)
{
long long_val, param = (long)arg->cmd->args;
int mode, dummyint, f, first;
const char *argp;
struct datalink *cx = arg->cx; /* LOCAL_CX uses this */
const char *err = NULL;
struct link *l = command_ChooseLink(arg); /* LOCAL_CX_OPT uses this */
struct in_addr dummyaddr, *addr;
if (arg->argc > arg->argn)
argp = arg->argv[arg->argn];
else
argp = "";
if ((arg->cmd->lauth & LOCAL_CX) && !cx) {
log_Printf(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))) {
log_Printf(LogWARN, "set %s: Redundant context (%s) ignored\n",
arg->cmd->name, cx->name);
cx = NULL;
}
switch (param) {
case VAR_AUTHKEY:
strncpy(arg->bundle->cfg.auth.key, argp,
sizeof arg->bundle->cfg.auth.key - 1);
arg->bundle->cfg.auth.key[sizeof arg->bundle->cfg.auth.key - 1] = '\0';
break;
case VAR_AUTHNAME:
switch (bundle_Phase(arg->bundle)) {
case PHASE_DEAD:
case PHASE_ESTABLISH:
strncpy(arg->bundle->cfg.auth.name, argp,
sizeof arg->bundle->cfg.auth.name - 1);
arg->bundle->cfg.auth.name[sizeof arg->bundle->cfg.auth.name-1] = '\0';
break;
default:
err = "set authname: Only available at phase DEAD/ESTABLISH\n";
log_Printf(LogWARN, err);
break;
}
break;
case VAR_AUTOLOAD:
if (arg->argc == arg->argn + 3) {
int v1, v2, v3;
char *end;
v1 = strtol(arg->argv[arg->argn], &end, 0);
if (v1 < 0 || *end) {
log_Printf(LogWARN, "autoload: %s: Invalid min percentage\n",
arg->argv[arg->argn]);
return 1;
}
v2 = strtol(arg->argv[arg->argn + 1], &end, 0);
if (v2 < 0 || *end) {
log_Printf(LogWARN, "autoload: %s: Invalid max percentage\n",
arg->argv[arg->argn + 1]);
return 1;
}
if (v2 < v1) {
v3 = v1;
v1 = v2;
v2 = v3;
}
v3 = strtol(arg->argv[arg->argn + 2], &end, 0);
if (v3 <= 0 || *end) {
log_Printf(LogWARN, "autoload: %s: Invalid throughput period\n",
arg->argv[arg->argn + 2]);
return 1;
}
arg->bundle->ncp.mp.cfg.autoload.min = v1;
arg->bundle->ncp.mp.cfg.autoload.max = v2;
arg->bundle->ncp.mp.cfg.autoload.period = v3;
mp_RestartAutoloadTimer(&arg->bundle->ncp.mp);
} else {
err = "Set autoload requires three arguments\n";
log_Printf(LogWARN, err);
}
break;
case VAR_DIAL:
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:
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_WINSIZE:
if (arg->argc > arg->argn) {
l->ccp.cfg.deflate.out.winsize = atoi(arg->argv[arg->argn]);
if (l->ccp.cfg.deflate.out.winsize < 8 ||
l->ccp.cfg.deflate.out.winsize > 15) {
log_Printf(LogWARN, "%d: Invalid outgoing window size\n",
l->ccp.cfg.deflate.out.winsize);
l->ccp.cfg.deflate.out.winsize = 15;
}
if (arg->argc > arg->argn+1) {
l->ccp.cfg.deflate.in.winsize = atoi(arg->argv[arg->argn+1]);
if (l->ccp.cfg.deflate.in.winsize < 8 ||
l->ccp.cfg.deflate.in.winsize > 15) {
log_Printf(LogWARN, "%d: Invalid incoming window size\n",
l->ccp.cfg.deflate.in.winsize);
l->ccp.cfg.deflate.in.winsize = 15;
}
} else
l->ccp.cfg.deflate.in.winsize = 0;
} else {
err = "No window size specified\n";
log_Printf(LogWARN, err);
}
break;
case VAR_DEVICE:
physical_SetDeviceList(cx->physical, arg->argc - arg->argn,
arg->argv + arg->argn);
break;
case VAR_ACCMAP:
if (arg->argc > arg->argn) {
u_long ulong_val;
sscanf(argp, "%lx", &ulong_val);
cx->physical->link.lcp.cfg.accmap = (u_int32_t)ulong_val;
} else {
err = "No accmap specified\n";
log_Printf(LogWARN, err);
}
break;
case VAR_MODE:
mode = Nam2mode(argp);
if (mode == PHYS_NONE || mode == PHYS_ALL) {
log_Printf(LogWARN, "%s: Invalid mode\n", argp);
return -1;
}
bundle_SetMode(arg->bundle, cx, mode);
break;
case VAR_MRRU:
switch (bundle_Phase(arg->bundle)) {
case PHASE_DEAD:
break;
case PHASE_ESTABLISH:
/* Make sure none of our links are DATALINK_LCP or greater */
if (bundle_HighestState(arg->bundle) >= DATALINK_LCP) {
log_Printf(LogWARN, "mrru: Only changable before LCP negotiations\n");
return 1;
}
break;
default:
log_Printf(LogWARN, "mrru: Only changable at phase DEAD/ESTABLISH\n");
return 1;
}
long_val = atol(argp);
if (long_val && long_val < MIN_MRU) {
log_Printf(LogWARN, "MRRU %ld: too small - min %d\n", long_val, MIN_MRU);
return 1;
} else if (long_val > MAX_MRU) {
log_Printf(LogWARN, "MRRU %ld: too big - max %d\n", long_val, MAX_MRU);
return 1;
} else
arg->bundle->ncp.mp.cfg.mrru = long_val;
break;
case VAR_MRU:
long_val = atol(argp);
if (long_val == 0)
l->lcp.cfg.mru = DEF_MRU;
else if (long_val < MIN_MRU) {
log_Printf(LogWARN, "MRU %ld: too small - min %d\n", long_val, MIN_MRU);
return 1;
} else if (long_val > MAX_MRU) {
log_Printf(LogWARN, "MRU %ld: too big - max %d\n", long_val, MAX_MRU);
return 1;
} else
l->lcp.cfg.mru = long_val;
break;
case VAR_MTU:
long_val = atol(argp);
if (long_val && long_val < MIN_MTU) {
log_Printf(LogWARN, "MTU %ld: too small - min %d\n", long_val, MIN_MTU);
return 1;
} else if (long_val > MAX_MTU) {
log_Printf(LogWARN, "MTU %ld: too big - max %d\n", long_val, MAX_MTU);
return 1;
} else
arg->bundle->cfg.mtu = long_val;
break;
case VAR_OPENMODE:
if (strcasecmp(argp, "active") == 0)
cx->physical->link.lcp.cfg.openmode = arg->argc > arg->argn+1 ?
atoi(arg->argv[arg->argn+1]) : 1;
else if (strcasecmp(argp, "passive") == 0)
cx->physical->link.lcp.cfg.openmode = OPEN_PASSIVE;
else {
err = "%s: Invalid openmode\n";
log_Printf(LogWARN, err, argp);
}
break;
case VAR_PHONE:
strncpy(cx->cfg.phone.list, argp, sizeof cx->cfg.phone.list - 1);
cx->cfg.phone.list[sizeof cx->cfg.phone.list - 1] = '\0';
cx->phone.alt = cx->phone.next = NULL;
break;
case VAR_HANGUP:
strncpy(cx->cfg.script.hangup, argp, sizeof cx->cfg.script.hangup - 1);
cx->cfg.script.hangup[sizeof cx->cfg.script.hangup - 1] = '\0';
break;
case VAR_LOGOUT:
strncpy(cx->cfg.script.logout, argp, sizeof cx->cfg.script.logout - 1);
cx->cfg.script.logout[sizeof cx->cfg.script.logout - 1] = '\0';
break;
case VAR_IDLETIMEOUT:
if (arg->argc > arg->argn+2)
err = "Too many idle timeout values\n";
else if (arg->argc == arg->argn)
err = "Too few idle timeout values\n";
else {
int timeout, min;
timeout = atoi(argp);
min = arg->argc == arg->argn + 2 ? atoi(arg->argv[arg->argn + 1]) : -1;
bundle_SetIdleTimer(arg->bundle, timeout, min);
}
if (err)
log_Printf(LogWARN, err);
break;
case VAR_LQRPERIOD:
long_val = atol(argp);
if (long_val < MIN_LQRPERIOD) {
log_Printf(LogWARN, "%ld: Invalid lqr period - min %d\n",
long_val, MIN_LQRPERIOD);
return 1;
} else
l->lcp.cfg.lqrperiod = long_val;
break;
case VAR_LCPRETRY:
return SetRetry(arg->argc - arg->argn, arg->argv + arg->argn,
&cx->physical->link.lcp.cfg.fsm.timeout,
&cx->physical->link.lcp.cfg.fsm.maxreq,
&cx->physical->link.lcp.cfg.fsm.maxtrm, DEF_FSMTRIES);
break;
case VAR_CHAPRETRY:
return SetRetry(arg->argc - arg->argn, arg->argv + arg->argn,
&cx->chap.auth.cfg.fsm.timeout,
&cx->chap.auth.cfg.fsm.maxreq, NULL, DEF_FSMAUTHTRIES);
break;
case VAR_PAPRETRY:
return SetRetry(arg->argc - arg->argn, arg->argv + arg->argn,
&cx->pap.cfg.fsm.timeout, &cx->pap.cfg.fsm.maxreq,
NULL, DEF_FSMAUTHTRIES);
break;
case VAR_CCPRETRY:
return SetRetry(arg->argc - arg->argn, arg->argv + arg->argn,
&l->ccp.cfg.fsm.timeout, &l->ccp.cfg.fsm.maxreq,
&l->ccp.cfg.fsm.maxtrm, DEF_FSMTRIES);
break;
case VAR_IPCPRETRY:
return SetRetry(arg->argc - arg->argn, arg->argv + arg->argn,
&arg->bundle->ncp.ipcp.cfg.fsm.timeout,
&arg->bundle->ncp.ipcp.cfg.fsm.maxreq,
&arg->bundle->ncp.ipcp.cfg.fsm.maxtrm, DEF_FSMTRIES);
break;
case VAR_NBNS:
case VAR_DNS:
if (param == VAR_DNS)
addr = arg->bundle->ncp.ipcp.cfg.ns.dns;
else
addr = arg->bundle->ncp.ipcp.cfg.ns.nbns;
addr[0].s_addr = addr[1].s_addr = INADDR_ANY;
if (arg->argc > arg->argn) {
ParseAddr(&arg->bundle->ncp.ipcp, arg->argv[arg->argn],
addr, &dummyaddr, &dummyint);
if (arg->argc > arg->argn+1)
ParseAddr(&arg->bundle->ncp.ipcp, arg->argv[arg->argn + 1],
addr + 1, &dummyaddr, &dummyint);
if (addr[1].s_addr == INADDR_ANY)
addr[1].s_addr = addr[0].s_addr;
if (addr[0].s_addr == INADDR_ANY)
addr[0].s_addr = addr[1].s_addr;
}
break;
case VAR_CALLBACK:
cx->cfg.callback.opmask = 0;
for (dummyint = arg->argn; dummyint < arg->argc; dummyint++) {
if (!strcasecmp(arg->argv[dummyint], "auth"))
cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_AUTH);
else if (!strcasecmp(arg->argv[dummyint], "cbcp"))
cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_CBCP);
else if (!strcasecmp(arg->argv[dummyint], "e.164")) {
if (dummyint == arg->argc - 1)
log_Printf(LogWARN, "No E.164 arg (E.164 ignored) !\n");
else {
cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_E164);
strncpy(cx->cfg.callback.msg, arg->argv[++dummyint],
sizeof cx->cfg.callback.msg - 1);
cx->cfg.callback.msg[sizeof cx->cfg.callback.msg - 1] = '\0';
}
} else if (!strcasecmp(arg->argv[dummyint], "none"))
cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_NONE);
else
return -1;
}
if (cx->cfg.callback.opmask == CALLBACK_BIT(CALLBACK_NONE))
cx->cfg.callback.opmask = 0;
break;
case VAR_CBCP:
cx->cfg.cbcp.delay = 0;
*cx->cfg.cbcp.phone = '\0';
cx->cfg.cbcp.fsmretry = DEF_FSMRETRY;
if (arg->argc > arg->argn) {
strncpy(cx->cfg.cbcp.phone, arg->argv[arg->argn],
sizeof cx->cfg.cbcp.phone - 1);
cx->cfg.cbcp.phone[sizeof cx->cfg.cbcp.phone - 1] = '\0';
if (arg->argc > arg->argn + 1) {
cx->cfg.cbcp.delay = atoi(arg->argv[arg->argn + 1]);
if (arg->argc > arg->argn + 2) {
long_val = atol(arg->argv[arg->argn + 2]);
if (long_val < MIN_FSMRETRY)
log_Printf(LogWARN, "%ld: Invalid CBCP FSM retry period - min %d\n",
long_val, MIN_FSMRETRY);
else
cx->cfg.cbcp.fsmretry = long_val;
}
}
}
break;
case VAR_CHOKED:
arg->bundle->cfg.choked.timeout = atoi(argp);
if (arg->bundle->cfg.choked.timeout <= 0)
arg->bundle->cfg.choked.timeout = CHOKED_TIMEOUT;
break;
case VAR_SENDPIPE:
long_val = atol(argp);
arg->bundle->ncp.ipcp.cfg.sendpipe = long_val;
break;
case VAR_RECVPIPE:
long_val = atol(argp);
arg->bundle->ncp.ipcp.cfg.recvpipe = long_val;
break;
#ifndef NORADIUS
case VAR_RADIUS:
if (!*argp)
*arg->bundle->radius.cfg.file = '\0';
else if (access(argp, R_OK)) {
log_Printf(LogWARN, "%s: %s\n", argp, strerror(errno));
return 1;
} else {
strncpy(arg->bundle->radius.cfg.file, argp,
sizeof arg->bundle->radius.cfg.file - 1);
arg->bundle->radius.cfg.file
[sizeof arg->bundle->radius.cfg.file - 1] = '\0';
}
break;
#endif
case VAR_CD:
if (*argp) {
if (strcasecmp(argp, "off")) {
long_val = atol(argp);
if (long_val < 0)
long_val = 0;
cx->physical->cfg.cd.delay = long_val;
cx->physical->cfg.cd.necessity = argp[strlen(argp)-1] == '!' ?
CD_REQUIRED : CD_VARIABLE;
} else
cx->physical->cfg.cd.necessity = CD_NOTREQUIRED;
} else {
cx->physical->cfg.cd.delay = 0;
cx->physical->cfg.cd.necessity = CD_DEFAULT;
}
break;
case VAR_PARITY:
if (arg->argc == arg->argn + 1)
return physical_SetParity(arg->cx->physical, argp);
else {
err = "Parity value must be odd, even or none\n";
log_Printf(LogWARN, err);
}
break;
case VAR_CRTSCTS:
if (strcasecmp(argp, "on") == 0)
physical_SetRtsCts(arg->cx->physical, 1);
else if (strcasecmp(argp, "off") == 0)
physical_SetRtsCts(arg->cx->physical, 0);
else {
err = "RTS/CTS value must be on or off\n";
log_Printf(LogWARN, err);
}
break;
case VAR_URGENTPORTS:
if (arg->argn == arg->argc) {
ipcp_ClearUrgentTcpPorts(&arg->bundle->ncp.ipcp);
ipcp_ClearUrgentUdpPorts(&arg->bundle->ncp.ipcp);
} else if (!strcasecmp(arg->argv[arg->argn], "udp")) {
if (arg->argn == arg->argc - 1)
ipcp_ClearUrgentUdpPorts(&arg->bundle->ncp.ipcp);
else for (f = arg->argn + 1; f < arg->argc; f++)
if (*arg->argv[f] == '+')
ipcp_AddUrgentUdpPort(&arg->bundle->ncp.ipcp, atoi(arg->argv[f] + 1));
else if (*arg->argv[f] == '-')
ipcp_RemoveUrgentUdpPort(&arg->bundle->ncp.ipcp,
atoi(arg->argv[f] + 1));
else {
if (f == arg->argn)
ipcp_ClearUrgentUdpPorts(&arg->bundle->ncp.ipcp);
ipcp_AddUrgentUdpPort(&arg->bundle->ncp.ipcp, atoi(arg->argv[f]));
}
} else {
first = arg->argn;
if (!strcasecmp(arg->argv[first], "tcp") && ++first == arg->argc)
ipcp_ClearUrgentTcpPorts(&arg->bundle->ncp.ipcp);
for (f = first; f < arg->argc; f++)
if (*arg->argv[f] == '+')
ipcp_AddUrgentTcpPort(&arg->bundle->ncp.ipcp, atoi(arg->argv[f] + 1));
else if (*arg->argv[f] == '-')
ipcp_RemoveUrgentTcpPort(&arg->bundle->ncp.ipcp,
atoi(arg->argv[f] + 1));
else {
if (f == first)
ipcp_ClearUrgentTcpPorts(&arg->bundle->ncp.ipcp);
ipcp_AddUrgentTcpPort(&arg->bundle->ncp.ipcp, atoi(arg->argv[f]));
}
}
break;
}
return err ? 1 : 0;
}
static struct cmdtab const SetCommands[] = {
{"accmap", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
"accmap value", "set accmap hex-value", (const void *)VAR_ACCMAP},
{"authkey", "key", SetVariable, LOCAL_AUTH,
"authentication key", "set authkey|key key", (const void *)VAR_AUTHKEY},
{"authname", NULL, SetVariable, LOCAL_AUTH,
"authentication name", "set authname name", (const void *)VAR_AUTHNAME},
{"autoload", NULL, SetVariable, LOCAL_AUTH,
"auto link [de]activation", "set autoload maxtime maxload mintime minload",
(const void *)VAR_AUTOLOAD},
{"bandwidth", NULL, mp_SetDatalinkBandwidth, LOCAL_AUTH | LOCAL_CX,
"datalink bandwidth", "set bandwidth value"},
{"callback", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
"callback control", "set callback [none|auth|cbcp|"
"E.164 *|number[,number]...]...", (const void *)VAR_CALLBACK},
{"cbcp", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
"CBCP control", "set cbcp [*|phone[,phone...] [delay [timeout]]]",
(const void *)VAR_CBCP},
{"ccpretry", "ccpretries", SetVariable, LOCAL_AUTH | LOCAL_CX_OPT,
"CCP retries", "set ccpretry value [attempts]", (const void *)VAR_CCPRETRY},
{"cd", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "Carrier delay requirement",
"set cd value[!]", (const void *)VAR_CD},
{"chapretry", "chapretries", SetVariable, LOCAL_AUTH | LOCAL_CX,
"CHAP retries", "set chapretry value [attempts]",
(const void *)VAR_CHAPRETRY},
{"choked", NULL, SetVariable, LOCAL_AUTH,
"choked timeout", "set choked [secs]", (const void *)VAR_CHOKED},
{"ctsrts", "crtscts", SetVariable, LOCAL_AUTH | LOCAL_CX,
"Use hardware flow control", "set ctsrts [on|off]",
(const char *)VAR_CRTSCTS},
{"deflate", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT,
"deflate window sizes", "set deflate out-winsize in-winsize",
(const void *) VAR_WINSIZE},
{"device", "line", SetVariable, LOCAL_AUTH | LOCAL_CX,
"physical device name", "set device|line device-name[,device-name]",
(const void *) VAR_DEVICE},
{"dial", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
"dialing script", "set dial chat-script", (const void *) VAR_DIAL},
{"dns", NULL, SetVariable, LOCAL_AUTH, "Domain Name Server",
"set dns pri-addr [sec-addr]", (const void *)VAR_DNS},
{"enddisc", NULL, mp_SetEnddisc, LOCAL_AUTH,
"Endpoint Discriminator", "set enddisc [IP|magic|label|psn value]"},
{"escape", NULL, SetEscape, LOCAL_AUTH | LOCAL_CX,
"escape characters", "set escape hex-digit ..."},
{"filter", NULL, filter_Set, LOCAL_AUTH,
"packet filters", "set filter alive|dial|in|out rule-no permit|deny "
"[src_addr[/width]] [dst_addr[/width]] [tcp|udp|icmp|ospf|igmp "
"[src [lt|eq|gt port]] [dst [lt|eq|gt port]] [estab] [syn] [finrst]]"},
{"hangup", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
"hangup script", "set hangup chat-script", (const void *) VAR_HANGUP},
{"ifaddr", NULL, SetInterfaceAddr, LOCAL_AUTH, "destination address",
"set ifaddr [src-addr [dst-addr [netmask [trg-addr]]]]"},
{"ipcpretry", "ipcpretries", SetVariable, LOCAL_AUTH, "IPCP retries",
"set ipcpretry value [attempts]", (const void *)VAR_IPCPRETRY},
{"lcpretry", "lcpretries", SetVariable, LOCAL_AUTH | LOCAL_CX, "LCP retries",
"set lcpretry value [attempts]", (const void *)VAR_LCPRETRY},
{"log", NULL, log_SetLevel, LOCAL_AUTH, "log level",
"set log [local] [+|-]async|cbcp|ccp|chat|command|connect|debug|dns|hdlc|"
"id0|ipcp|lcp|lqm|phase|physical|sync|tcp/ip|timer|tun..."},
{"login", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
"login script", "set login chat-script", (const void *) VAR_LOGIN},
{"logout", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
"logout script", "set logout chat-script", (const void *) VAR_LOGOUT},
{"lqrperiod", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT,
"LQR period", "set lqrperiod value", (const void *)VAR_LQRPERIOD},
{"mode", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "mode value",
"set mode interactive|auto|ddial|background", (const void *)VAR_MODE},
{"mrru", NULL, SetVariable, LOCAL_AUTH, "MRRU value",
"set mrru value", (const void *)VAR_MRRU},
{"mru", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT,
"MRU value", "set mru value", (const void *)VAR_MRU},
{"mtu", NULL, SetVariable, LOCAL_AUTH,
"interface MTU value", "set mtu value", (const void *)VAR_MTU},
{"nbns", NULL, SetVariable, LOCAL_AUTH, "NetBIOS Name Server",
"set nbns pri-addr [sec-addr]", (const void *)VAR_NBNS},
{"openmode", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "open mode",
"set openmode active|passive [secs]", (const void *)VAR_OPENMODE},
{"papretry", "papretries", SetVariable, LOCAL_AUTH | LOCAL_CX, "PAP retries",
"set papretry value [attempts]", (const void *)VAR_PAPRETRY},
{"parity", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "serial parity",
"set parity [odd|even|none]", (const void *)VAR_PARITY},
{"phone", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "telephone number(s)",
"set phone phone1[:phone2[...]]", (const void *)VAR_PHONE},
{"proctitle", "title", SetProcTitle, LOCAL_AUTH,
"Process title", "set proctitle [value]"},
#ifndef NORADIUS
{"radius", NULL, SetVariable, LOCAL_AUTH,
"RADIUS Config", "set radius cfgfile", (const void *)VAR_RADIUS},
#endif
{"reconnect", NULL, datalink_SetReconnect, LOCAL_AUTH | LOCAL_CX,
"Reconnect timeout", "set reconnect value ntries"},
{"recvpipe", NULL, SetVariable, LOCAL_AUTH,
"RECVPIPE value", "set recvpipe value", (const void *)VAR_RECVPIPE},
{"redial", NULL, datalink_SetRedial, LOCAL_AUTH | LOCAL_CX,
"Redial timeout", "set redial secs[+inc[-incmax]][.next] [attempts]"},
{"sendpipe", NULL, SetVariable, LOCAL_AUTH,
"SENDPIPE value", "set sendpipe value", (const void *)VAR_SENDPIPE},
{"server", "socket", SetServer, LOCAL_AUTH,
"server port", "set server|socket TcpPort|LocalName|none password [mask]"},
{"speed", NULL, SetModemSpeed, LOCAL_AUTH | LOCAL_CX,
"physical speed", "set speed value|sync"},
{"stopped", NULL, SetStoppedTimeout, LOCAL_AUTH | LOCAL_CX,
"STOPPED timeouts", "set stopped [LCPseconds [CCPseconds]]"},
{"timeout", NULL, SetVariable, LOCAL_AUTH, "Idle timeout",
"set timeout idletime", (const void *)VAR_IDLETIMEOUT},
{"urgent", NULL, SetVariable, LOCAL_AUTH, "urgent ports",
"set urgent [tcp|udp] [+|-]port...", (const void *)VAR_URGENTPORTS},
{"vj", NULL, ipcp_vjset, LOCAL_AUTH,
"vj values", "set vj slots|slotcomp [value]"},
{"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 > arg->argn)
FindExec(arg->bundle, SetCommands, arg->argc, arg->argn, arg->argv,
arg->prompt, arg->cx);
else if (arg->prompt)
prompt_Printf(arg->prompt, "Use `set ?' to get a list or `set ? <var>' for"
" syntax help.\n");
else
log_Printf(LogWARN, "set command must have arguments\n");
return 0;
}
static int
AddCommand(struct cmdargs const *arg)
{
struct in_addr dest, gateway, netmask;
int gw, addrs;
if (arg->argc != arg->argn+3 && arg->argc != arg->argn+2)
return -1;
addrs = 0;
if (arg->argc == arg->argn+2) {
if (!strcasecmp(arg->argv[arg->argn], "default"))
dest.s_addr = netmask.s_addr = INADDR_ANY;
else {
int width;
if (!ParseAddr(&arg->bundle->ncp.ipcp, arg->argv[arg->argn],
&dest, &netmask, &width))
return -1;
if (!strncasecmp(arg->argv[arg->argn], "MYADDR", 6))
addrs = ROUTE_DSTMYADDR;
else if (!strncasecmp(arg->argv[arg->argn], "HISADDR", 7))
addrs = ROUTE_DSTHISADDR;
}
gw = 1;
} else {
if (strcasecmp(arg->argv[arg->argn], "MYADDR") == 0) {
addrs = ROUTE_DSTMYADDR;
dest = arg->bundle->ncp.ipcp.my_ip;
} else if (strcasecmp(arg->argv[arg->argn], "HISADDR") == 0) {
addrs = ROUTE_DSTHISADDR;
dest = arg->bundle->ncp.ipcp.peer_ip;
} else
dest = GetIpAddr(arg->argv[arg->argn]);
netmask = GetIpAddr(arg->argv[arg->argn+1]);
gw = 2;
}
if (strcasecmp(arg->argv[arg->argn+gw], "HISADDR") == 0) {
gateway = arg->bundle->ncp.ipcp.peer_ip;
addrs |= ROUTE_GWHISADDR;
} else
gateway = GetIpAddr(arg->argv[arg->argn+gw]);
if (bundle_SetRoute(arg->bundle, RTM_ADD, dest, gateway, netmask,
arg->cmd->args ? 1 : 0, (addrs & ROUTE_GWHISADDR) ? 1 : 0)
&& addrs != ROUTE_STATIC)
route_Add(&arg->bundle->ncp.ipcp.route, addrs, dest, netmask, gateway);
return 0;
}
static int
DeleteCommand(struct cmdargs const *arg)
{
struct in_addr dest, none;
int addrs;
if (arg->argc == arg->argn+1) {
if(strcasecmp(arg->argv[arg->argn], "all") == 0) {
route_IfDelete(arg->bundle, 0);
route_DeleteAll(&arg->bundle->ncp.ipcp.route);
} else {
addrs = 0;
if (strcasecmp(arg->argv[arg->argn], "MYADDR") == 0) {
dest = arg->bundle->ncp.ipcp.my_ip;
addrs = ROUTE_DSTMYADDR;
} else if (strcasecmp(arg->argv[arg->argn], "HISADDR") == 0) {
dest = arg->bundle->ncp.ipcp.peer_ip;
addrs = ROUTE_DSTHISADDR;
} else {
dest = GetIpAddr(arg->argv[arg->argn]);
if (dest.s_addr == INADDR_NONE) {
log_Printf(LogWARN, "%s: Invalid IP address\n", arg->argv[arg->argn]);
return -1;
}
addrs = ROUTE_STATIC;
}
none.s_addr = INADDR_ANY;
bundle_SetRoute(arg->bundle, RTM_DELETE, dest, none, none,
arg->cmd->args ? 1 : 0, 0);
route_Delete(&arg->bundle->ncp.ipcp.route, addrs, dest);
}
} else
return -1;
return 0;
}
#ifndef NONAT
static int
AliasEnable(struct cmdargs const *arg)
{
if (arg->argc == arg->argn+1) {
if (strcasecmp(arg->argv[arg->argn], "yes") == 0) {
if (!arg->bundle->NatEnabled) {
if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED)
PacketAliasSetAddress(arg->bundle->ncp.ipcp.my_ip);
arg->bundle->NatEnabled = 1;
}
return 0;
} else if (strcasecmp(arg->argv[arg->argn], "no") == 0) {
arg->bundle->NatEnabled = 0;
arg->bundle->cfg.opt &= ~OPT_IFACEALIAS;
/* Don't iface_Clear() - there may be manually configured addresses */
return 0;
}
}
return -1;
}
static int
AliasOption(struct cmdargs const *arg)
{
long param = (long)arg->cmd->args;
if (arg->argc == arg->argn+1) {
if (strcasecmp(arg->argv[arg->argn], "yes") == 0) {
if (arg->bundle->NatEnabled) {
PacketAliasSetMode(param, param);
return 0;
}
log_Printf(LogWARN, "nat not enabled\n");
} else if (strcmp(arg->argv[arg->argn], "no") == 0) {
if (arg->bundle->NatEnabled) {
PacketAliasSetMode(0, param);
return 0;
}
log_Printf(LogWARN, "nat not enabled\n");
}
}
return -1;
}
#endif /* #ifndef NONAT */
static int
LinkCommand(struct cmdargs const *arg)
{
if (arg->argc > arg->argn+1) {
char namelist[LINE_LEN];
struct datalink *cx;
char *name;
int result = 0;
if (!strcmp(arg->argv[arg->argn], "*")) {
struct datalink *dl;
cx = arg->bundle->links;
while (cx) {
/* Watch it, the command could be a ``remove'' */
dl = cx->next;
FindExec(arg->bundle, Commands, arg->argc, arg->argn+1, arg->argv,
arg->prompt, cx);
for (cx = arg->bundle->links; cx; cx = cx->next)
if (cx == dl)
break; /* Pointer's still valid ! */
}
} else {
strncpy(namelist, arg->argv[arg->argn], sizeof namelist - 1);
namelist[sizeof namelist - 1] = '\0';
for(name = strtok(namelist, ", "); name; name = strtok(NULL,", "))
if (!bundle2datalink(arg->bundle, name)) {
log_Printf(LogWARN, "link: %s: Invalid link name\n", name);
return 1;
}
strncpy(namelist, arg->argv[arg->argn], sizeof namelist - 1);
namelist[sizeof namelist - 1] = '\0';
for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) {
cx = bundle2datalink(arg->bundle, name);
if (cx)
FindExec(arg->bundle, Commands, arg->argc, arg->argn+1, arg->argv,
arg->prompt, cx);
else {
log_Printf(LogWARN, "link: %s: Invalidated link name !\n", name);
result++;
}
}
}
return result;
}
log_Printf(LogWARN, "Usage: %s\n", arg->cmd->syntax);
return 2;
}
struct link *
command_ChooseLink(struct cmdargs const *arg)
{
if (arg->cx)
return &arg->cx->physical->link;
else if (!arg->bundle->ncp.mp.cfg.mrru) {
struct datalink *dl = bundle2datalink(arg->bundle, NULL);
if (dl)
return &dl->physical->link;
}
return &arg->bundle->ncp.mp.link;
}
static const char *
ident_cmd(const char *cmd, unsigned *keep, unsigned *add)
{
const char *result;
switch (*cmd) {
case 'A':
case 'a':
result = "accept";
*keep = NEG_MYMASK;
*add = NEG_ACCEPTED;
break;
case 'D':
case 'd':
switch (cmd[1]) {
case 'E':
case 'e':
result = "deny";
*keep = NEG_MYMASK;
*add = 0;
break;
case 'I':
case 'i':
result = "disable";
*keep = NEG_HISMASK;
*add = 0;
break;
default:
return NULL;
}
break;
case 'E':
case 'e':
result = "enable";
*keep = NEG_HISMASK;
*add = NEG_ENABLED;
break;
default:
return NULL;
}
return result;
}
static int
OptSet(struct cmdargs const *arg)
{
int bit = (int)(long)arg->cmd->args;
const char *cmd;
unsigned keep; /* Keep these bits */
unsigned add; /* Add these bits */
if ((cmd = ident_cmd(arg->argv[arg->argn-2], &keep, &add)) == NULL)
return 1;
if (add)
arg->bundle->cfg.opt |= bit;
else
arg->bundle->cfg.opt &= ~bit;
return 0;
}
static int
IfaceAliasOptSet(struct cmdargs const *arg)
{
unsigned save = arg->bundle->cfg.opt;
int result = OptSet(arg);
if (result == 0)
if (Enabled(arg->bundle, OPT_IFACEALIAS) && !arg->bundle->NatEnabled) {
arg->bundle->cfg.opt = save;
log_Printf(LogWARN, "Cannot enable iface-alias without NAT\n");
result = 2;
}
return result;
}
static int
NegotiateSet(struct cmdargs const *arg)
{
long param = (long)arg->cmd->args;
struct link *l = command_ChooseLink(arg); /* LOCAL_CX_OPT uses this */
struct datalink *cx = arg->cx; /* LOCAL_CX uses this */
const char *cmd;
unsigned keep; /* Keep these bits */
unsigned add; /* Add these bits */
if ((cmd = ident_cmd(arg->argv[arg->argn-2], &keep, &add)) == NULL)
return 1;
if ((arg->cmd->lauth & LOCAL_CX) && !cx) {
log_Printf(LogWARN, "%s %s: No context (use the `link' command)\n",
cmd, arg->cmd->name);
return 2;
} else if (cx && !(arg->cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) {
log_Printf(LogWARN, "%s %s: Redundant context (%s) ignored\n",
cmd, arg->cmd->name, cx->name);
cx = NULL;
}
switch (param) {
case NEG_ACFCOMP:
cx->physical->link.lcp.cfg.acfcomp &= keep;
cx->physical->link.lcp.cfg.acfcomp |= add;
break;
case NEG_CHAP05:
cx->physical->link.lcp.cfg.chap05 &= keep;
cx->physical->link.lcp.cfg.chap05 |= add;
break;
#ifdef HAVE_DES
case NEG_CHAP80:
cx->physical->link.lcp.cfg.chap80nt &= keep;
cx->physical->link.lcp.cfg.chap80nt |= add;
break;
case NEG_CHAP80LM:
cx->physical->link.lcp.cfg.chap80lm &= keep;
cx->physical->link.lcp.cfg.chap80lm |= add;
break;
#endif
case NEG_DEFLATE:
l->ccp.cfg.neg[CCP_NEG_DEFLATE] &= keep;
l->ccp.cfg.neg[CCP_NEG_DEFLATE] |= add;
break;
case NEG_DNS:
arg->bundle->ncp.ipcp.cfg.ns.dns_neg &= keep;
arg->bundle->ncp.ipcp.cfg.ns.dns_neg |= add;
break;
case NEG_ENDDISC:
arg->bundle->ncp.mp.cfg.negenddisc &= keep;
arg->bundle->ncp.mp.cfg.negenddisc |= add;
break;
case NEG_LQR:
cx->physical->link.lcp.cfg.lqr &= keep;
cx->physical->link.lcp.cfg.lqr |= add;
break;
case NEG_PAP:
cx->physical->link.lcp.cfg.pap &= keep;
cx->physical->link.lcp.cfg.pap |= add;
break;
case NEG_PPPDDEFLATE:
l->ccp.cfg.neg[CCP_NEG_DEFLATE24] &= keep;
l->ccp.cfg.neg[CCP_NEG_DEFLATE24] |= add;
break;
case NEG_PRED1:
l->ccp.cfg.neg[CCP_NEG_PRED1] &= keep;
l->ccp.cfg.neg[CCP_NEG_PRED1] |= add;
break;
case NEG_PROTOCOMP:
cx->physical->link.lcp.cfg.protocomp &= keep;
cx->physical->link.lcp.cfg.protocomp |= add;
break;
case NEG_SHORTSEQ:
switch (bundle_Phase(arg->bundle)) {
case PHASE_DEAD:
break;
case PHASE_ESTABLISH:
/* Make sure none of our links are DATALINK_LCP or greater */
if (bundle_HighestState(arg->bundle) >= DATALINK_LCP) {
log_Printf(LogWARN, "shortseq: Only changable before"
" LCP negotiations\n");
return 1;
}
break;
default:
log_Printf(LogWARN, "shortseq: Only changable at phase"
" DEAD/ESTABLISH\n");
return 1;
}
arg->bundle->ncp.mp.cfg.shortseq &= keep;
arg->bundle->ncp.mp.cfg.shortseq |= add;
break;
case NEG_VJCOMP:
arg->bundle->ncp.ipcp.cfg.vj.neg &= keep;
arg->bundle->ncp.ipcp.cfg.vj.neg |= add;
break;
}
return 0;
}
static struct cmdtab const NegotiateCommands[] = {
{"idcheck", NULL, OptSet, LOCAL_AUTH, "Check FSM reply ids",
"disable|enable", (const void *)OPT_IDCHECK},
{"iface-alias", NULL, IfaceAliasOptSet, LOCAL_AUTH,
"retain interface addresses", "disable|enable",
(const void *)OPT_IFACEALIAS},
{"keep-session", NULL, OptSet, LOCAL_AUTH, "Retain device session leader",
"disable|enable", (const void *)OPT_KEEPSESSION},
{"loopback", NULL, OptSet, LOCAL_AUTH, "Loop packets for local iface",
"disable|enable", (const void *)OPT_LOOPBACK},
{"passwdauth", NULL, OptSet, LOCAL_AUTH, "Use passwd file",
"disable|enable", (const void *)OPT_PASSWDAUTH},
{"proxy", NULL, OptSet, LOCAL_AUTH, "Create a proxy ARP entry",
"disable|enable", (const void *)OPT_PROXY},
{"proxyall", NULL, OptSet, LOCAL_AUTH, "Proxy ARP for all remote hosts",
"disable|enable", (const void *)OPT_PROXYALL},
{"sroutes", NULL, OptSet, LOCAL_AUTH, "Use sticky routes",
"disable|enable", (const void *)OPT_SROUTES},
{"throughput", NULL, OptSet, LOCAL_AUTH, "Rolling throughput",
"disable|enable", (const void *)OPT_THROUGHPUT},
{"utmp", NULL, OptSet, LOCAL_AUTH, "Log connections in utmp",
"disable|enable", (const void *)OPT_UTMP},
#define OPT_MAX 10 /* accept/deny allowed below and not above */
{"acfcomp", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX,
"Address & Control field compression", "accept|deny|disable|enable",
(const void *)NEG_ACFCOMP},
{"chap", "chap05", NegotiateSet, LOCAL_AUTH | LOCAL_CX,
"Challenge Handshake Authentication Protocol", "accept|deny|disable|enable",
(const void *)NEG_CHAP05},
#ifdef HAVE_DES
{"mschap", "chap80nt", NegotiateSet, LOCAL_AUTH | LOCAL_CX,
"Microsoft (NT) CHAP", "accept|deny|disable|enable",
(const void *)NEG_CHAP80},
{"LANMan", "chap80lm", NegotiateSet, LOCAL_AUTH | LOCAL_CX,
"Microsoft (NT) CHAP", "accept|deny|disable|enable",
(const void *)NEG_CHAP80LM},
#endif
{"deflate", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT,
"Deflate compression", "accept|deny|disable|enable",
(const void *)NEG_DEFLATE},
{"deflate24", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT,
"Deflate (type 24) compression", "accept|deny|disable|enable",
(const void *)NEG_PPPDDEFLATE},
{"dns", NULL, NegotiateSet, LOCAL_AUTH,
"DNS specification", "accept|deny|disable|enable", (const void *)NEG_DNS},
{"enddisc", NULL, NegotiateSet, LOCAL_AUTH, "ENDDISC negotiation",
"accept|deny|disable|enable", (const void *)NEG_ENDDISC},
{"lqr", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX,
"Link Quality Reports", "accept|deny|disable|enable",
(const void *)NEG_LQR},
{"pap", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX,
"Password Authentication protocol", "accept|deny|disable|enable",
(const void *)NEG_PAP},
{"pred1", "predictor1", NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT,
"Predictor 1 compression", "accept|deny|disable|enable",
(const void *)NEG_PRED1},
{"protocomp", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX,
"Protocol field compression", "accept|deny|disable|enable",
(const void *)NEG_PROTOCOMP},
{"shortseq", NULL, NegotiateSet, LOCAL_AUTH,
"MP Short Sequence Numbers", "accept|deny|disable|enable",
(const void *)NEG_SHORTSEQ},
{"vjcomp", NULL, NegotiateSet, LOCAL_AUTH,
"Van Jacobson header compression", "accept|deny|disable|enable",
(const void *)NEG_VJCOMP},
{"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
"Display this message", "accept|deny|disable|enable help|? [value]",
NegotiateCommands},
{NULL, NULL, NULL},
};
static int
NegotiateCommand(struct cmdargs const *arg)
{
if (arg->argc > arg->argn) {
char const *argv[3];
unsigned keep, add;
int n;
if ((argv[0] = ident_cmd(arg->argv[arg->argn-1], &keep, &add)) == NULL)
return -1;
argv[2] = NULL;
for (n = arg->argn; n < arg->argc; n++) {
argv[1] = arg->argv[n];
FindExec(arg->bundle, NegotiateCommands + (keep == NEG_HISMASK ?
0 : OPT_MAX), 2, 1, argv, arg->prompt, arg->cx);
}
} else if (arg->prompt)
prompt_Printf(arg->prompt, "Use `%s ?' to get a list.\n",
arg->argv[arg->argn-1]);
else
log_Printf(LogWARN, "%s command must have arguments\n",
arg->argv[arg->argn] );
return 0;
}
const char *
command_ShowNegval(unsigned val)
{
switch (val&3) {
case 1: return "disabled & accepted";
case 2: return "enabled & denied";
case 3: return "enabled & accepted";
}
return "disabled & denied";
}
static int
ClearCommand(struct cmdargs const *arg)
{
struct pppThroughput *t;
struct datalink *cx;
int i, clear_type;
if (arg->argc < arg->argn + 1)
return -1;
if (strcasecmp(arg->argv[arg->argn], "physical") == 0) {
cx = arg->cx;
if (!cx)
cx = bundle2datalink(arg->bundle, NULL);
if (!cx) {
log_Printf(LogWARN, "A link must be specified for ``clear physical''\n");
return 1;
}
t = &cx->physical->link.throughput;
} else if (strcasecmp(arg->argv[arg->argn], "ipcp") == 0)
t = &arg->bundle->ncp.ipcp.throughput;
else
return -1;
if (arg->argc > arg->argn + 1) {
clear_type = 0;
for (i = arg->argn + 1; i < arg->argc; i++)
if (strcasecmp(arg->argv[i], "overall") == 0)
clear_type |= THROUGHPUT_OVERALL;
else if (strcasecmp(arg->argv[i], "current") == 0)
clear_type |= THROUGHPUT_CURRENT;
else if (strcasecmp(arg->argv[i], "peak") == 0)
clear_type |= THROUGHPUT_PEAK;
else
return -1;
} else
clear_type = THROUGHPUT_ALL;
throughput_clear(t, clear_type, arg->prompt);
return 0;
}
static int
RunListCommand(struct cmdargs const *arg)
{
const char *cmd = arg->argc ? arg->argv[arg->argc - 1] : "???";
if (arg->argc > arg->argn)
FindExec(arg->bundle, arg->cmd->args, arg->argc, arg->argn, arg->argv,
arg->prompt, arg->cx);
else if (arg->prompt)
prompt_Printf(arg->prompt, "Use `%s help' to get a list or `%s help"
" <option>' for syntax help.\n", cmd, cmd);
else
log_Printf(LogWARN, "%s command must have arguments\n", cmd);
return 0;
}
static int
IfaceAddCommand(struct cmdargs const *arg)
{
int bits, n, how;
struct in_addr ifa, mask, brd;
if (arg->argc == arg->argn + 1) {
if (!ParseAddr(NULL, arg->argv[arg->argn], &ifa, NULL, NULL))
return -1;
mask.s_addr = brd.s_addr = INADDR_BROADCAST;
} else {
if (arg->argc == arg->argn + 2) {
if (!ParseAddr(NULL, arg->argv[arg->argn], &ifa, &mask, &bits))
return -1;
n = 1;
} else if (arg->argc == arg->argn + 3) {
if (!ParseAddr(NULL, arg->argv[arg->argn], &ifa, NULL, NULL))
return -1;
if (!ParseAddr(NULL, arg->argv[arg->argn + 1], &mask, NULL, NULL))
return -1;
n = 2;
} else
return -1;
if (!ParseAddr(NULL, arg->argv[arg->argn + n], &brd, NULL, NULL))
return -1;
}
how = IFACE_ADD_LAST;
if (arg->cmd->args)
how |= IFACE_FORCE_ADD;
return !iface_inAdd(arg->bundle->iface, ifa, mask, brd, how);
}
static int
IfaceDeleteCommand(struct cmdargs const *arg)
{
struct in_addr ifa;
int ok;
if (arg->argc != arg->argn + 1)
return -1;
if (!ParseAddr(NULL, arg->argv[arg->argn], &ifa, NULL, NULL))
return -1;
if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED &&
arg->bundle->ncp.ipcp.my_ip.s_addr == ifa.s_addr) {
log_Printf(LogWARN, "%s: Cannot remove active interface address\n",
inet_ntoa(ifa));
return 1;
}
ok = iface_inDelete(arg->bundle->iface, ifa);
if (!ok) {
if (arg->cmd->args)
ok = 1;
else if (arg->prompt)
prompt_Printf(arg->prompt, "%s: No such address\n", inet_ntoa(ifa));
else
log_Printf(LogWARN, "%s: No such address\n", inet_ntoa(ifa));
}
return !ok;
}
static int
IfaceClearCommand(struct cmdargs const *arg)
{
int how;
if (arg->argc != arg->argn)
return -1;
how = arg->bundle->ncp.ipcp.fsm.state == ST_OPENED ||
arg->bundle->phys_type.all & PHYS_AUTO ?
IFACE_CLEAR_ALIASES : IFACE_CLEAR_ALL;
iface_Clear(arg->bundle->iface, how);
return 0;
}
static int
SetProcTitle(struct cmdargs const *arg)
{
static char title[LINE_LEN];
char *argv[MAXARGS], *ptr;
int len, remaining, f, argc = arg->argc - arg->argn;
if (arg->argc == arg->argn) {
ID0setproctitle(NULL);
return 0;
}
if (argc >= sizeof argv / sizeof argv[0]) {
argc = sizeof argv / sizeof argv[0] - 1;
log_Printf(LogWARN, "Truncating proc title to %d args\n", argc);
}
command_Expand(argv, argc, arg->argv + arg->argn, arg->bundle, 1, getpid());
ptr = title;
remaining = sizeof title - 1;
for (f = 0; f < argc && remaining; f++) {
if (f) {
*ptr++ = ' ';
remaining--;
}
len = strlen(argv[f]);
if (len > remaining)
len = remaining;
memcpy(ptr, argv[f], len);
remaining -= len;
ptr += len;
}
*ptr = '\0';
ID0setproctitle(title);
return 0;
}
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