X-Git-Url: http://git.ozlabs.org/?p=ppp.git;a=blobdiff_plain;f=pppd%2Fmain.c;h=ed73a12b0b9ccad87116fd3fc5940b8359e8cdde;hp=e4624209e5155ef57083639270428be0d32c96e3;hb=8770e3b90ea3f4b2283fcda7a8339b6698381e3f;hpb=c8cda9f67448845b4a81c1a0c8dc13e73d297692 diff --git a/pppd/main.c b/pppd/main.c index e462420..ed73a12 100644 --- a/pppd/main.c +++ b/pppd/main.c @@ -18,10 +18,11 @@ */ #ifndef lint -static char rcsid[] = "$Id: main.c,v 1.39 1996/10/08 06:43:49 paulus Exp $"; +static char rcsid[] = "$Id: main.c,v 1.42 1997/07/14 03:53:25 paulus Exp $"; #endif #include +#include #include #include #include @@ -63,6 +64,9 @@ extern char *strerror(); #ifdef IPX_CHANGE #include "ipxcp.h" #endif /* IPX_CHANGE */ +#ifdef AT_CHANGE +#include "atcp.h" +#endif /* interface vars */ char ifname[IFNAMSIZ]; /* Interface name */ @@ -102,9 +106,9 @@ char *no_ppp_msg = "Sorry - this system lacks PPP kernel support\n"; static void cleanup __P((void)); static void close_tty __P((void)); static void get_input __P((void)); -static void connect_time_expired __P((caddr_t)); static void calltimeout __P((void)); static struct timeval *timeleft __P((struct timeval *)); +static void kill_my_pg __P((int)); static void hup __P((int)); static void term __P((int)); static void chld __P((int)); @@ -118,6 +122,7 @@ static void pr_log __P((void *, char *, ...)); extern char *ttyname __P((int)); extern char *getlogin __P((void)); +int main __P((int, char *[])); #ifdef ultrix #undef O_NONBLOCK @@ -144,6 +149,9 @@ struct protent *protocols[] = { &ccp_protent, #ifdef IPX_CHANGE &ipxcp_protent, +#endif +#ifdef AT_CHANGE + &atcp_protent, #endif NULL }; @@ -204,11 +212,6 @@ main(argc, argv) || !parse_args(argc-1, argv+1)) exit(1); - if (!ppp_available()) { - option_error(no_ppp_msg); - exit(1); - } - /* * Check that we are running as root. */ @@ -218,6 +221,11 @@ main(argc, argv) die(1); } + if (!ppp_available()) { + option_error(no_ppp_msg); + exit(1); + } + /* * Check that the options given are valid and consistent. */ @@ -264,8 +272,8 @@ main(argc, argv) else p = "(unknown)"; } - syslog(LOG_NOTICE, "pppd %s.%d started by %s, uid %d", - VERSION, PATCHLEVEL, p, uid); + syslog(LOG_NOTICE, "pppd %s.%d%s started by %s, uid %d", + VERSION, PATCHLEVEL, IMPLEMENTATION, p, uid); /* * Compute mask of all interesting signals and install signal handlers @@ -412,21 +420,22 @@ main(argc, argv) /* * Open the serial device and set it up to be the ppp interface. - * If we're dialling out, or we don't want to use the modem lines, - * we open it in non-blocking mode, but then we need to clear - * the non-blocking I/O bit. + * First we open it in non-blocking mode so we can set the + * various termios flags appropriately. If we aren't dialling + * out and we want to use the modem lines, we reopen it later + * in order to wait for the carrier detect signal from the modem. */ - nonblock = (connector || !modem)? O_NONBLOCK: 0; - if ((ttyfd = open(devnam, nonblock | O_RDWR, 0)) < 0) { - syslog(LOG_ERR, "Failed to open %s: %m", devnam); - goto fail; - } - if (nonblock) { - if ((fdflags = fcntl(ttyfd, F_GETFL)) == -1 - || fcntl(ttyfd, F_SETFL, fdflags & ~O_NONBLOCK) < 0) - syslog(LOG_WARNING, - "Couldn't reset non-blocking mode on device: %m"); + while ((ttyfd = open(devnam, O_NONBLOCK | O_RDWR, 0)) < 0) { + if (errno != EINTR) + syslog(LOG_ERR, "Failed to open %s: %m", devnam); + if (!persist || errno != EINTR) + goto fail; } + if ((fdflags = fcntl(ttyfd, F_GETFL)) == -1 + || fcntl(ttyfd, F_SETFL, fdflags & ~O_NONBLOCK) < 0) + syslog(LOG_WARNING, + "Couldn't reset non-blocking mode on device: %m"); + hungup = 0; kill_link = 0; @@ -440,13 +449,18 @@ main(argc, argv) } else tty_mode = statbuf.st_mode; + /* + * Set line speed, flow control, etc. + * Previously, if we had a connection script, we would set CLOCAL + * while the script was running. But then, if CD was negated + * before the script finished, we would miss it. + */ + set_up_tty(ttyfd, 0); + /* run connection script */ if (connector && connector[0]) { MAINDEBUG((LOG_INFO, "Connecting with <%s>", connector)); - /* set line speed, flow control, etc.; set CLOCAL for now */ - set_up_tty(ttyfd, 1); - /* drop dtr to hang up in case modem is off hook */ if (!default_device && modem) { setdtr(ttyfd, FALSE); @@ -464,8 +478,16 @@ main(argc, argv) sleep(1); /* give it time to set up its terminal */ } - /* set line speed, flow control, etc.; clear CLOCAL if modem option */ - set_up_tty(ttyfd, 0); + /* reopen tty if necessary to wait for carrier */ + if (connector == NULL && modem) { + while ((i = open(devnam, O_RDWR)) < 0) { + if (errno != EINTR) + syslog(LOG_ERR, "Failed to reopen %s: %m", devnam); + if (!persist || errno != EINTR || hungup || kill_link) + goto fail; + } + close(i); + } /* run welcome script, if any */ if (welcomer && welcomer[0]) { @@ -493,13 +515,6 @@ main(argc, argv) } } - /* - * Set a timeout to close the connection once the maximum - * connect time has expired. - */ - if (maxconnect > 0) - TIMEOUT(connect_time_expired, 0, maxconnect); - /* * Start opening the connection and wait for * incoming events (reply, timeout, etc.). @@ -549,7 +564,8 @@ main(argc, argv) } fail: - close_tty(); + if (ttyfd >= 0) + close_tty(); if (locked) { unlock(); locked = 0; @@ -585,6 +601,7 @@ main(argc, argv) } die(0); + return 0; } /* @@ -623,7 +640,7 @@ get_input() } if (debug /*&& (debugflags & DBG_INPACKET)*/) - log_packet(p, len, "rcvd "); + log_packet(p, len, "rcvd ", LOG_DEBUG); if (len < PPP_HDRLEN) { MAINDEBUG((LOG_INFO, "io(): Received short packet.")); @@ -639,7 +656,19 @@ get_input() */ if (protocol != PPP_LCP && lcp_fsm[0].state != OPENED) { MAINDEBUG((LOG_INFO, - "io(): Received non-LCP packet when LCP not open.")); + "get_input: Received non-LCP packet when LCP not open.")); + return; + } + + /* + * Until we get past the authentication phase, toss all packets + * except LCP, LQR and authentication packets. + */ + if (phase <= PHASE_AUTHENTICATE + && !(protocol == PPP_LCP || protocol == PPP_LQR + || protocol == PPP_PAP || protocol == PPP_CHAP)) { + MAINDEBUG((LOG_INFO, "get_input: discarding proto 0x%x in phase %d", + protocol, phase)); return; } @@ -685,17 +714,6 @@ die(status) exit(status); } -/* - * connect_time_expired - log a message and close the connection. - */ -static void -connect_time_expired(arg) - caddr_t arg; -{ - syslog(LOG_INFO, "Connect time expired"); - lcp_close(0, "Connect time expired"); /* Close connection */ -} - /* * cleanup - restore anything which needs to be restored before we exit */ @@ -746,8 +764,8 @@ close_tty() struct callout { struct timeval c_time; /* time at which to call routine */ - caddr_t c_arg; /* argument to routine */ - void (*c_func)(); /* routine */ + void *c_arg; /* argument to routine */ + void (*c_func) __P((void *)); /* routine */ struct callout *c_next; }; @@ -762,8 +780,8 @@ static struct timeval timenow; /* Current time */ */ void timeout(func, arg, time) - void (*func)(); - caddr_t arg; + void (*func) __P((void *)); + void *arg; int time; { struct callout *newp, *p, **pp; @@ -802,8 +820,8 @@ timeout(func, arg, time) */ void untimeout(func, arg) - void (*func)(); - caddr_t arg; + void (*func) __P((void *)); + void *arg; { struct callout **copp, *freep; @@ -884,8 +902,8 @@ kill_my_pg(sig) act.sa_handler = SIG_IGN; act.sa_flags = 0; + kill(0, sig); sigaction(sig, &act, &oldact); - kill(-getpgrp(), sig); sigaction(sig, &oldact, NULL); } @@ -1162,16 +1180,17 @@ char line[256]; /* line to be logged accumulated here */ char *linep; void -log_packet(p, len, prefix) +log_packet(p, len, prefix, level) u_char *p; int len; char *prefix; + int level; { strcpy(line, prefix); linep = line + strlen(line); format_packet(p, len, pr_log, NULL); if (linep != line) - syslog(LOG_DEBUG, "%s", line); + syslog(level, "%s", line); } /* @@ -1337,10 +1356,9 @@ vfmtmsg(buf, buflen, fmt, args) int c, i, n; int width, prec, fillch; int base, len, neg, quoted; - unsigned long val; + unsigned long val = 0; char *str, *f, *buf0; unsigned char *p; - void *a; char num[32]; time_t t; static char hexchars[] = "0123456789abcdef"; @@ -1432,12 +1450,12 @@ vfmtmsg(buf, buflen, fmt, args) break; case 'r': f = va_arg(args, char *); - /* - * XXX We assume a va_list is either a pointer or an array, so - * what gets passed for a va_list is like a void * in some sense. - */ - a = va_arg(args, void *); - n = vfmtmsg(buf, buflen + 1, f, a); +#ifndef __powerpc__ + n = vfmtmsg(buf, buflen + 1, f, va_arg(args, va_list)); +#else + /* On the powerpc, a va_list is an array of 1 structure */ + n = vfmtmsg(buf, buflen + 1, f, va_arg(args, void *)); +#endif buf += n; buflen -= n; continue; @@ -1468,7 +1486,7 @@ vfmtmsg(buf, buflen, fmt, args) } if (quoted && (c == '"' || c == '\\')) OUTCHAR('\\'); - if (c < 0x20 || 0x7f <= c && c < 0xa0) { + if (c < 0x20 || (0x7f <= c && c < 0xa0)) { if (quoted) { OUTCHAR('\\'); switch (c) {