*/
#ifndef lint
-static char rcsid[] = "$Id: options.c,v 1.36 1996/10/08 04:35:03 paulus Exp $";
+static char rcsid[] = "$Id: options.c,v 1.40 1997/11/27 06:09:34 paulus Exp $";
#endif
#include <ctype.h>
#include <sys/stat.h>
#include <netinet/in.h>
#include <arpa/inet.h>
+#ifdef PPP_FILTER
+#include <pcap.h>
+#include <pcap-int.h> /* XXX: To get struct pcap */
+#endif
#include "pppd.h"
#include "pathnames.h"
/*
* Option variables and default values.
*/
+#ifdef PPP_FILTER
+int dflag = 0; /* Tell libpcap we want debugging */
+#endif
int debug = 0; /* Debug flag */
int kdebugflag = 0; /* Tell kernel to print debug messages */
int default_device = 1; /* Using /dev/tty or equivalent */
int lcp_echo_fails = 0; /* Tolerance to unanswered echo-requests */
char our_name[MAXNAMELEN]; /* Our name for authentication purposes */
char remote_name[MAXNAMELEN]; /* Peer's name for authentication */
+int explicit_remote = 0; /* User specified explicit remote name */
int usehostname = 0; /* Use hostname for our_name */
int disable_defaultip = 0; /* Don't use hostname for default IP adrs */
int demand = 0; /* do dial-on-demand */
int refuse_pap = 0; /* Set to say we won't do PAP */
int refuse_chap = 0; /* Set to say we won't do CHAP */
+#ifdef MSLANMAN
+int ms_lanman = 0; /* Nonzero if use LanMan password instead of NT */
+ /* Has meaning only with MS-CHAP challenges */
+#endif
+
struct option_info auth_req_info;
struct option_info connector_info;
struct option_info disconnector_info;
struct option_info welcomer_info;
struct option_info devnam_info;
+#ifdef PPP_FILTER
+struct bpf_program pass_filter;/* Filter program for packets to pass */
+struct bpf_program active_filter; /* Filter program for link-active pkts */
+pcap_t pc; /* Fake struct pcap so we can compile expr */
+#endif
/*
* Prototypes
*/
static int setdevname __P((char *, int));
static int setipaddr __P((char *));
-static int setdebug __P((void));
+static int setspeed __P((char *));
+static int setdebug __P((char **));
static int setkdebug __P((char **));
-static int setpassive __P((void));
-static int setsilent __P((void));
-static int noopt __P((void));
-static int setnovj __P((void));
-static int setnovjccomp __P((void));
+static int setpassive __P((char **));
+static int setsilent __P((char **));
+static int noopt __P((char **));
+static int setnovj __P((char **));
+static int setnovjccomp __P((char **));
static int setvjslots __P((char **));
-static int reqpap __P((void));
-static int nopap __P((void));
+static int reqpap __P((char **));
+static int nopap __P((char **));
#ifdef OLD_OPTIONS
static int setupapfile __P((char **));
#endif
-static int nochap __P((void));
-static int reqchap __P((void));
-static int setspeed __P((char *));
-static int noaccomp __P((void));
-static int noasyncmap __P((void));
-static int noip __P((void));
-static int nomagicnumber __P((void));
+static int nochap __P((char **));
+static int reqchap __P((char **));
+static int noaccomp __P((char **));
+static int noasyncmap __P((char **));
+static int noip __P((char **));
+static int nomagicnumber __P((char **));
static int setasyncmap __P((char **));
static int setescape __P((char **));
static int setmru __P((char **));
#ifdef CBCP_SUPPORT
static int setcbcp __P((char **));
#endif
-static int nomru __P((void));
-static int nopcomp __P((void));
+static int nomru __P((char **));
+static int nopcomp __P((char **));
static int setconnector __P((char **));
static int setdisconnector __P((char **));
static int setwelcomer __P((char **));
static int setmaxconnect __P((char **));
static int setdomain __P((char **));
static int setnetmask __P((char **));
-static int setcrtscts __P((void));
-static int setnocrtscts __P((void));
-static int setxonxoff __P((void));
-static int setnodetach __P((void));
-static int setmodem __P((void));
-static int setlocal __P((void));
-static int setlock __P((void));
+static int setcrtscts __P((char **));
+static int setnocrtscts __P((char **));
+static int setxonxoff __P((char **));
+static int setnodetach __P((char **));
+static int setmodem __P((char **));
+static int setlocal __P((char **));
+static int setlock __P((char **));
static int setname __P((char **));
static int setuser __P((char **));
static int setremote __P((char **));
-static int setauth __P((void));
-static int setnoauth __P((void));
+static int setauth __P((char **));
+static int setnoauth __P((char **));
static int readfile __P((char **));
static int callfile __P((char **));
-static int setdefaultroute __P((void));
-static int setnodefaultroute __P((void));
-static int setproxyarp __P((void));
-static int setnoproxyarp __P((void));
-static int setpersist __P((void));
-static int setnopersist __P((void));
-static int setdologin __P((void));
-static int setusehostname __P((void));
-static int setnoipdflt __P((void));
+static int setdefaultroute __P((char **));
+static int setnodefaultroute __P((char **));
+static int setproxyarp __P((char **));
+static int setnoproxyarp __P((char **));
+static int setpersist __P((char **));
+static int setnopersist __P((char **));
+static int setdologin __P((char **));
+static int setusehostname __P((char **));
+static int setnoipdflt __P((char **));
static int setlcptimeout __P((char **));
static int setlcpterm __P((char **));
static int setlcpconf __P((char **));
static int setchaptimeout __P((char **));
static int setchapchal __P((char **));
static int setchapintv __P((char **));
-static int setipcpaccl __P((void));
-static int setipcpaccr __P((void));
+static int setipcpaccl __P((char **));
+static int setipcpaccr __P((char **));
static int setlcpechointv __P((char **));
static int setlcpechofails __P((char **));
-static int noccp __P((void));
+static int noccp __P((char **));
static int setbsdcomp __P((char **));
-static int setnobsdcomp __P((void));
+static int setnobsdcomp __P((char **));
static int setdeflate __P((char **));
-static int setnodeflate __P((void));
-static int setdemand __P((void));
-static int setpred1comp __P((void));
-static int setnopred1comp __P((void));
+static int setnodeflate __P((char **));
+static int setdemand __P((char **));
+static int setpred1comp __P((char **));
+static int setnopred1comp __P((char **));
static int setipparam __P((char **));
-static int setpapcrypt __P((void));
+static int setpapcrypt __P((char **));
static int setidle __P((char **));
static int setholdoff __P((char **));
static int setdnsaddr __P((char **));
-static int resetipxproto __P((void));
+static int resetipxproto __P((char **));
+static int setwinsaddr __P((char **));
+static int showversion __P((char **));
+static int showhelp __P((char **));
+
+#ifdef PPP_FILTER
+static int setpdebug __P((char **));
+static int setpassfilter __P((char **));
+static int setactivefilter __P((char **));
+#endif
#ifdef IPX_CHANGE
-static int setipxproto __P((void));
-static int setipxanet __P((void));
-static int setipxalcl __P((void));
-static int setipxarmt __P((void));
+static int setipxproto __P((char **));
+static int setipxanet __P((char **));
+static int setipxalcl __P((char **));
+static int setipxarmt __P((char **));
static int setipxnetwork __P((char **));
static int setipxnode __P((char **));
static int setipxrouter __P((char **));
static int setipxcpfails __P((char **));
#endif /* IPX_CHANGE */
+#ifdef MSLANMAN
+static int setmslanman __P((char **));
+#endif
+
static int number_option __P((char *, u_int32_t *, int));
static int int_option __P((char *, int *));
static int readable __P((int fd));
static struct cmd {
char *cmd_name;
int num_args;
- int (*cmd_func)();
+ int (*cmd_func) __P((char **));
} cmds[] = {
{"-all", 0, noopt}, /* Don't request/allow any options (useless) */
{"noaccomp", 0, noaccomp}, /* Disable Address/Control compression */
{"idle", 1, setidle}, /* idle time limit (seconds) */
{"holdoff", 1, setholdoff}, /* set holdoff time (seconds) */
{"ms-dns", 1, setdnsaddr}, /* DNS address for the peer's use */
+ {"ms-wins", 1, setwinsaddr}, /* Nameserver for SMB over TCP/IP for peer */
{"noipx", 0, resetipxproto}, /* Disable IPXCP (and IPX) */
{"-ipx", 0, resetipxproto}, /* Disable IPXCP (and IPX) */
+ {"--version", 0, showversion}, /* Show version number */
+ {"--help", 0, showhelp}, /* Show brief listing of options */
+ {"-h", 0, showhelp}, /* ditto */
+
+#ifdef PPP_FILTER
+ {"pdebug", 1, setpdebug}, /* libpcap debugging */
+ {"pass-filter", 1, setpassfilter}, /* set filter for packets to pass */
+ {"active-filter", 1, setactivefilter}, /* set filter for active pkts */
+#endif
#ifdef IPX_CHANGE
{"ipx-network", 1, setipxnetwork}, /* IPX network number */
{"+ipx", 0, setipxproto}, /* Enable IPXCP (and IPX) */
#endif /* IPX_CHANGE */
+#ifdef MSLANMAN
+ {"ms-lanman", 0, setmslanman}, /* Use LanMan psswd when using MS-CHAP */
+#endif
+
{NULL, 0, NULL}
};
file <f> Take options from file <f>\n\
modem Use modem control lines\n\
mru <n> Set MRU value to <n> for negotiation\n\
- netmask <n> Set interface netmask to <n>\n\
See pppd(8) for more options.\n\
";
progname);
}
+/*
+ * showhelp - print out usage message and exit.
+ */
+static int
+showhelp(argv)
+ char **argv;
+{
+ if (phase == PHASE_INITIALIZE) {
+ usage();
+ exit(0);
+ }
+ return 0;
+}
+
+/*
+ * showversion - print out the version number and exit.
+ */
+static int
+showversion(argv)
+ char **argv;
+{
+ if (phase == PHASE_INITIALIZE) {
+ fprintf(stderr, "pppd version %s patch level %d%s\n",
+ VERSION, PATCHLEVEL, IMPLEMENTATION);
+ exit(0);
+ }
+ return 0;
+}
+
/*
* options_from_file - Read a string of options from a file,
* and interpret them.
option_error __V((char *fmt, ...))
{
va_list args;
- int n;
char buf[256];
#if __STDC__
* setdebug - Set debug (command line argument).
*/
static int
-setdebug()
+setdebug(argv)
+ char **argv;
{
debug++;
return (1);
return int_option(*argv, &kdebugflag);
}
+#ifdef PPP_FILTER
+/*
+ * setpdebug - Set libpcap debugging level.
+ */
+static int
+setpdebug(argv)
+ char **argv;
+{
+ return int_option(*argv, &dflag);
+}
+
+/*
+ * setpassfilter - Set the pass filter for packets
+ */
+static int
+setpassfilter(argv)
+ char **argv;
+{
+ pc.linktype = DLT_PPP;
+ pc.snapshot = PPP_HDRLEN;
+
+ if (pcap_compile(&pc, &pass_filter, *argv, 1, netmask) == 0)
+ return 1;
+ option_error("error in pass-filter expression: %s\n", pcap_geterr(&pc));
+ return 0;
+}
+
+/*
+ * setactivefilter - Set the active filter for packets
+ */
+static int
+setactivefilter(argv)
+ char **argv;
+{
+ pc.linktype = DLT_PPP;
+ pc.snapshot = PPP_HDRLEN;
+
+ if (pcap_compile(&pc, &active_filter, *argv, 1, netmask) == 0)
+ return 1;
+ option_error("error in active-filter expression: %s\n", pcap_geterr(&pc));
+ return 0;
+}
+#endif
+
/*
* noopt - Disable all options.
*/
static int
-noopt()
+noopt(argv)
+ char **argv;
{
BZERO((char *) &lcp_wantoptions[0], sizeof (struct lcp_options));
BZERO((char *) &lcp_allowoptions[0], sizeof (struct lcp_options));
* noaccomp - Disable Address/Control field compression negotiation.
*/
static int
-noaccomp()
+noaccomp(argv)
+ char **argv;
{
lcp_wantoptions[0].neg_accompression = 0;
lcp_allowoptions[0].neg_accompression = 0;
* noasyncmap - Disable async map negotiation.
*/
static int
-noasyncmap()
+noasyncmap(argv)
+ char **argv;
{
lcp_wantoptions[0].neg_asyncmap = 0;
lcp_allowoptions[0].neg_asyncmap = 0;
* noip - Disable IP and IPCP.
*/
static int
-noip()
+noip(argv)
+ char **argv;
{
ipcp_protent.enabled_flag = 0;
return (1);
* nomagicnumber - Disable magic number negotiation.
*/
static int
-nomagicnumber()
+nomagicnumber(argv)
+ char **argv;
{
lcp_wantoptions[0].neg_magicnumber = 0;
lcp_allowoptions[0].neg_magicnumber = 0;
* nomru - Disable mru negotiation.
*/
static int
-nomru()
+nomru(argv)
+ char **argv;
{
lcp_wantoptions[0].neg_mru = 0;
lcp_allowoptions[0].neg_mru = 0;
* nopcomp - Disable Protocol field compression negotiation.
*/
static int
-nopcomp()
+nopcomp(argv)
+ char **argv;
{
lcp_wantoptions[0].neg_pcompression = 0;
lcp_allowoptions[0].neg_pcompression = 0;
* LCP configure-requests).
*/
static int
-setpassive()
+setpassive(argv)
+ char **argv;
{
lcp_wantoptions[0].passive = 1;
return (1);
* until we get one from the peer).
*/
static int
-setsilent()
+setsilent(argv)
+ char **argv;
{
lcp_wantoptions[0].silent = 1;
return 1;
* nopap - Disable PAP authentication with peer.
*/
static int
-nopap()
+nopap(argv)
+ char **argv;
{
refuse_pap = 1;
return (1);
* reqpap - Require PAP authentication from peer.
*/
static int
-reqpap()
+reqpap(argv)
+ char **argv;
{
lcp_wantoptions[0].neg_upap = 1;
- setauth();
+ setauth(NULL);
return 1;
}
* nochap - Disable CHAP authentication with peer.
*/
static int
-nochap()
+nochap(argv)
+ char **argv;
{
refuse_chap = 1;
return (1);
* reqchap - Require CHAP authentication from peer.
*/
static int
-reqchap()
+reqchap(argv)
+ char **argv;
{
lcp_wantoptions[0].neg_chap = 1;
- setauth();
+ setauth(NULL);
return (1);
}
* setnovj - disable vj compression
*/
static int
-setnovj()
+setnovj(argv)
+ char **argv;
{
ipcp_wantoptions[0].neg_vj = 0;
ipcp_allowoptions[0].neg_vj = 0;
* setnovjccomp - disable VJ connection-ID compression
*/
static int
-setnovjccomp()
+setnovjccomp(argv)
+ char **argv;
{
ipcp_wantoptions[0].cflag = 0;
ipcp_allowoptions[0].cflag = 0;
return 0;
}
p = endp;
- if (n < 0 || 0x20 <= n && n <= 0x3F || n == 0x5E || n > 0xFF) {
+ if (n < 0 || (0x20 <= n && n <= 0x3F) || n == 0x5E || n > 0xFF) {
option_error("can't escape character 0x%x", n);
ret = 0;
} else
* setnoipdflt - disable setipdefault()
*/
static int
-setnoipdflt()
+setnoipdflt(argv)
+ char **argv;
{
disable_defaultip = 1;
return 1;
* setipcpaccl - accept peer's idea of our address
*/
static int
-setipcpaccl()
+setipcpaccl(argv)
+ char **argv;
{
ipcp_wantoptions[0].accept_local = 1;
return 1;
* setipcpaccr - accept peer's idea of its address
*/
static int
-setipcpaccr()
+setipcpaccr(argv)
+ char **argv;
{
ipcp_wantoptions[0].accept_remote = 1;
return 1;
setnetmask(argv)
char **argv;
{
- u_int32_t mask;
+ u_int32_t mask, b;
+ int n, ok;
+ char *p, *endp;
- if ((mask = inet_addr(*argv)) == -1 || (netmask & ~mask) != 0) {
+ /*
+ * Unfortunately, if we use inet_addr, we can't tell whether
+ * a result of all 1s is an error or a valid 255.255.255.255.
+ */
+ p = *argv;
+ ok = 0;
+ mask = 0;
+ for (n = 3;; --n) {
+ b = strtoul(p, &endp, 0);
+ if (endp == p)
+ break;
+ if (b < 0 || b > 255) {
+ if (n == 3) {
+ /* accept e.g. 0xffffff00 */
+ p = endp;
+ mask = b;
+ }
+ break;
+ }
+ mask |= b << (n * 8);
+ p = endp;
+ if (*p != '.' || n == 0)
+ break;
+ ++p;
+ }
+
+ mask = htonl(mask);
+
+ if (*p != 0 || (netmask & ~mask) != 0) {
option_error("invalid netmask value '%s'", *argv);
return 0;
}
}
static int
-setcrtscts()
+setcrtscts(argv)
+ char **argv;
{
crtscts = 1;
return (1);
}
static int
-setnocrtscts()
+setnocrtscts(argv)
+ char **argv;
{
crtscts = -1;
return (1);
}
static int
-setxonxoff()
+setxonxoff(argv)
+ char **argv;
{
lcp_wantoptions[0].asyncmap |= 0x000A0000; /* escape ^S and ^Q */
lcp_wantoptions[0].neg_asyncmap = 1;
}
static int
-setnodetach()
+setnodetach(argv)
+ char **argv;
{
nodetach = 1;
return (1);
}
static int
-setdemand()
+setdemand(argv)
+ char **argv;
{
demand = 1;
persist = 1;
}
static int
-setmodem()
+setmodem(argv)
+ char **argv;
{
modem = 1;
return 1;
}
static int
-setlocal()
+setlocal(argv)
+ char **argv;
{
modem = 0;
return 1;
}
static int
-setlock()
+setlock(argv)
+ char **argv;
{
lockflag = 1;
return 1;
}
static int
-setusehostname()
+setusehostname(argv)
+ char **argv;
{
usehostname = 1;
return 1;
}
static int
-setauth()
+setauth(argv)
+ char **argv;
{
auth_required = 1;
if (privileged_option > auth_req_info.priv) {
}
static int
-setnoauth()
+setnoauth(argv)
+ char **argv;
{
if (auth_required && privileged_option < auth_req_info.priv) {
option_error("cannot override auth option set by %s",
}
static int
-setdefaultroute()
+setdefaultroute(argv)
+ char **argv;
{
if (!ipcp_allowoptions[0].default_route) {
option_error("defaultroute option is disabled");
}
static int
-setnodefaultroute()
+setnodefaultroute(argv)
+ char **argv;
{
ipcp_allowoptions[0].default_route = 0;
ipcp_wantoptions[0].default_route = 0;
}
static int
-setproxyarp()
+setproxyarp(argv)
+ char **argv;
{
if (!ipcp_allowoptions[0].proxy_arp) {
option_error("proxyarp option is disabled");
}
static int
-setnoproxyarp()
+setnoproxyarp(argv)
+ char **argv;
{
ipcp_wantoptions[0].proxy_arp = 0;
ipcp_allowoptions[0].proxy_arp = 0;
}
static int
-setpersist()
+setpersist(argv)
+ char **argv;
{
persist = 1;
return 1;
}
static int
-setnopersist()
+setnopersist(argv)
+ char **argv;
{
persist = 0;
return 1;
}
static int
-setdologin()
+setdologin(argv)
+ char **argv;
{
uselogin = 1;
return 1;
}
static int
-noccp()
+noccp(argv)
+ char **argv;
{
ccp_protent.enabled_flag = 0;
return 1;
option_error("invalid parameter '%s' for bsdcomp option", *argv);
return 0;
}
- if (rbits != 0 && (rbits < BSD_MIN_BITS || rbits > BSD_MAX_BITS)
- || abits != 0 && (abits < BSD_MIN_BITS || abits > BSD_MAX_BITS)) {
+ if ((rbits != 0 && (rbits < BSD_MIN_BITS || rbits > BSD_MAX_BITS))
+ || (abits != 0 && (abits < BSD_MIN_BITS || abits > BSD_MAX_BITS))) {
option_error("bsdcomp option values must be 0 or %d .. %d",
BSD_MIN_BITS, BSD_MAX_BITS);
return 0;
}
static int
-setnobsdcomp()
+setnobsdcomp(argv)
+ char **argv;
{
ccp_wantoptions[0].bsd_compress = 0;
ccp_allowoptions[0].bsd_compress = 0;
option_error("invalid parameter '%s' for deflate option", *argv);
return 0;
}
- if (rbits != 0 && (rbits < DEFLATE_MIN_SIZE || rbits > DEFLATE_MAX_SIZE)
- || abits != 0 && (abits < DEFLATE_MIN_SIZE
- || abits > DEFLATE_MAX_SIZE)) {
+ if ((rbits != 0 && (rbits < DEFLATE_MIN_SIZE || rbits > DEFLATE_MAX_SIZE))
+ || (abits != 0 && (abits < DEFLATE_MIN_SIZE
+ || abits > DEFLATE_MAX_SIZE))) {
option_error("deflate option values must be 0 or %d .. %d",
DEFLATE_MIN_SIZE, DEFLATE_MAX_SIZE);
return 0;
}
static int
-setnodeflate()
+setnodeflate(argv)
+ char **argv;
{
ccp_wantoptions[0].deflate = 0;
ccp_allowoptions[0].deflate = 0;
}
static int
-setpred1comp()
+setpred1comp(argv)
+ char **argv;
{
ccp_wantoptions[0].predictor_1 = 1;
ccp_allowoptions[0].predictor_1 = 1;
}
static int
-setnopred1comp()
+setnopred1comp(argv)
+ char **argv;
{
ccp_wantoptions[0].predictor_1 = 0;
ccp_allowoptions[0].predictor_1 = 0;
}
static int
-setpapcrypt()
+setpapcrypt(argv)
+ char **argv;
{
cryptpap = 1;
return 1;
return (1);
}
+/*
+ * setwinsaddr - set the wins address(es)
+ * This is primrarly used with the Samba package under UNIX or for pointing
+ * the caller to the existing WINS server on a Windows NT platform.
+ */
+static int
+setwinsaddr(argv)
+ char **argv;
+{
+ u_int32_t wins;
+ struct hostent *hp;
+
+ wins = inet_addr(*argv);
+ if (wins == -1) {
+ if ((hp = gethostbyname(*argv)) == NULL) {
+ option_error("invalid address parameter '%s' for ms-wins option",
+ *argv);
+ return 0;
+ }
+ wins = *(u_int32_t *)hp->h_addr;
+ }
+
+ if (ipcp_allowoptions[0].winsaddr[0] == 0) {
+ ipcp_allowoptions[0].winsaddr[0] = wins;
+ } else {
+ ipcp_allowoptions[0].winsaddr[1] = wins;
+ }
+
+ return (1);
+}
+
#ifdef IPX_CHANGE
static int
setipxrouter (argv)
setipxnetwork(argv)
char **argv;
{
- ipxcp_wantoptions[0].neg_nn = 1;
- return int_option(*argv, &ipxcp_wantoptions[0].our_network);
+ u_int32_t v;
+
+ if (!number_option(*argv, &v, 16))
+ return 0;
+
+ ipxcp_wantoptions[0].our_network = (int) v;
+ ipxcp_wantoptions[0].neg_nn = 1;
+ return 1;
}
static int
-setipxanet()
+setipxanet(argv)
+ char **argv;
{
ipxcp_wantoptions[0].accept_network = 1;
ipxcp_allowoptions[0].accept_network = 1;
}
static int
-setipxalcl()
+setipxalcl(argv)
+ char **argv;
{
ipxcp_wantoptions[0].accept_local = 1;
ipxcp_allowoptions[0].accept_local = 1;
}
static int
-setipxarmt()
+setipxarmt(argv)
+ char **argv;
{
ipxcp_wantoptions[0].accept_remote = 1;
ipxcp_allowoptions[0].accept_remote = 1;
}
static int
-setipxproto()
+setipxproto(argv)
+ char **argv;
{
ipxcp_protent.enabled_flag = 1;
return 1;
}
static int
-resetipxproto()
+resetipxproto(argv)
+ char **argv;
{
ipxcp_protent.enabled_flag = 0;
return 1;
#else
static int
-resetipxproto()
+resetipxproto(argv)
+ char **argv;
{
return 1;
}
#endif /* IPX_CHANGE */
+
+#ifdef MSLANMAN
+static int
+setmslanman(argv)
+ char **argv;
+{
+ ms_lanman = 1;
+ return (1);
+}
+#endif
projects / ppp.git / blobdiff