X-Git-Url: http://git.ozlabs.org/?p=ppp.git;a=blobdiff_plain;f=pppd%2Fsys-str.c;h=b7c2c5ad36791100dbc82e59a107066373b31e0e;hp=a088eb79d3e177dd7822e6d7d3d44fced34e60ba;hb=a199a8fc6621d7e1ca23fdc65091cc605c5feb28;hpb=14764803626157842c93eefd6a17072d1031eed2 diff --git a/pppd/sys-str.c b/pppd/sys-str.c index a088eb7..b7c2c5a 100644 --- a/pppd/sys-str.c +++ b/pppd/sys-str.c @@ -26,13 +26,16 @@ #include #include #include +#include +#include +#include +#include #include #include #include #include #include #include -#include #include #include @@ -41,6 +44,7 @@ #include "pppd.h" #include "ppp.h" +#include #include #ifndef ifr_mtu @@ -52,8 +56,16 @@ static struct modlist { char modname[FMNAMESZ+1]; } str_modules[MAXMODULES]; static int str_module_count = 0; +static int pushed_ppp; extern int hungup; /* has the physical layer been disconnected? */ +extern int kdebugflag; + +#define PAI_FLAGS_B7_0 0x100 +#define PAI_FLAGS_B7_1 0x200 +#define PAI_FLAGS_PAR_EVEN 0x400 +#define PAI_FLAGS_PAR_ODD 0x800 +#define PAI_FLAGS_HIBITS 0xF00 /* * ppp_available - check if this kernel supports PPP. @@ -88,8 +100,6 @@ establish_ppp() str_module_count++; } - MAINDEBUG((LOG_INFO, "about to push modules...")); - /* now push the async/fcs module */ if (ioctl(fd, I_PUSH, "pppasync") < 0) { syslog(LOG_ERR, "ioctl(I_PUSH, ppp_async): %m"); @@ -101,6 +111,7 @@ establish_ppp() syslog(LOG_ERR, "ioctl(I_PUSH, ppp_if): %m"); die(1); } + pushed_ppp = 1; if (ioctl(fd, I_SETSIG, S_INPUT) < 0) { syslog(LOG_ERR, "ioctl(I_SETSIG, S_INPUT): %m"); die(1); @@ -124,15 +135,10 @@ establish_ppp() die(1); } - /* if debug, set debug flags in driver */ - { - int flags = debug ? 0x3 : 0; - if (ioctl(fd, SIOCSIFDEBUG, &flags) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFDEBUG): %m"); - } + /* Set debug flags in driver */ + if (ioctl(fd, SIOCSIFDEBUG, &kdebugflag) < 0) { + syslog(LOG_ERR, "ioctl(SIOCSIFDEBUG): %m"); } - - MAINDEBUG((LOG_INFO, "done pushing modules, ifunit %d", ifunit)); } /* @@ -143,7 +149,8 @@ establish_ppp() void disestablish_ppp() { - /*EMPTY*/ + int flags; + char *s; if (hungup) { /* we can't push or pop modules after the stream has hung up */ @@ -151,12 +158,40 @@ disestablish_ppp() return; } + if (pushed_ppp) { + /* + * Check whether the link seems not to be 8-bit clean. + */ + if (ioctl(fd, SIOCGIFDEBUG, (caddr_t) &flags) == 0) { + s = NULL; + switch (~flags & PAI_FLAGS_HIBITS) { + case PAI_FLAGS_B7_0: + s = "bit 7 set to 1"; + break; + case PAI_FLAGS_B7_1: + s = "bit 7 set to 0"; + break; + case PAI_FLAGS_PAR_EVEN: + s = "odd parity"; + break; + case PAI_FLAGS_PAR_ODD: + s = "even parity"; + break; + } + if (s != NULL) { + syslog(LOG_WARNING, "Serial link is not 8-bit clean:"); + syslog(LOG_WARNING, "All received characters had %s", s); + } + } + } + while (ioctl(fd, I_POP, 0) == 0) /* pop any we pushed */ ; + pushed_ppp = 0; for (; str_module_count > 0; str_module_count--) { if (ioctl(fd, I_PUSH, str_modules[str_module_count-1].modname)) { - syslog(LOG_ERR, "str_restore: couldn't push module %s: %m", + syslog(LOG_WARNING, "str_restore: couldn't push module %s: %m", str_modules[str_module_count-1].modname); } else { MAINDEBUG((LOG_INFO, "str_restore: pushed module %s", @@ -249,22 +284,36 @@ ppp_send_config(unit, mtu, asyncmap, pcomp, accomp) quit(); } - c = pcomp; + c = (pcomp? 1: 0); if(ioctl(fd, SIOCSIFCOMPPROT, &c) < 0) { syslog(LOG_ERR, "ioctl(SIOCSIFCOMPPROT): %m"); quit(); } - c = accomp; + c = (accomp? 1: 0); if(ioctl(fd, SIOCSIFCOMPAC, &c) < 0) { syslog(LOG_ERR, "ioctl(SIOCSIFCOMPAC): %m"); quit(); } } + +/* + * ppp_set_xaccm - set the extended transmit ACCM for the interface. + */ +void +ppp_set_xaccm(unit, accm) + int unit; + ext_accm accm; +{ + if (ioctl(fd, SIOCSIFXASYNCMAP, accm) < 0 && errno != ENOTTY) + syslog(LOG_WARNING, "ioctl(set extended ACCM): %m"); +} + + /* * ppp_recv_config - configure the receive-side characteristics of - * the ppp interface. At present this just sets the MRU. + * the ppp interface. */ void ppp_recv_config(unit, mru, asyncmap, pcomp, accomp) @@ -278,17 +327,19 @@ ppp_recv_config(unit, mru, asyncmap, pcomp, accomp) syslog(LOG_ERR, "ioctl(SIOCSIFMRU): %m"); } -#ifdef notyet - if(ioctl(fd, SIOCSIFRASYNCMAP, (caddr_t) &asyncmap) < 0) { + if (ioctl(fd, SIOCSIFRASYNCMAP, (caddr_t) &asyncmap) < 0) { syslog(LOG_ERR, "ioctl(SIOCSIFRASYNCMAP): %m"); } - c = accomp; - if(ioctl(fd, SIOCSIFRCOMPAC, &c) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFRCOMPAC): %m"); - quit(); + c = 2 + (pcomp? 1: 0); + if(ioctl(fd, SIOCSIFCOMPPROT, &c) < 0) { + syslog(LOG_ERR, "ioctl(SIOCSIFCOMPPROT): %m"); + } + + c = 2 + (accomp? 1: 0); + if (ioctl(fd, SIOCSIFCOMPAC, &c) < 0) { + syslog(LOG_ERR, "ioctl(SIOCSIFCOMPAC): %m"); } -#endif /* notyet */ } /* @@ -298,9 +349,10 @@ int sifvjcomp(u, vjcomp, cidcomp, maxcid) int u, vjcomp, cidcomp, maxcid; { - char x = vjcomp; + char x; - if(ioctl(fd, SIOCSIFVJCOMP, (caddr_t) &x) < 0) { + x = (vjcomp? 1: 0) + (cidcomp? 0: 2) + (maxcid << 4); + if (ioctl(fd, SIOCSIFVJCOMP, (caddr_t) &x) < 0) { syslog(LOG_ERR, "ioctl(SIOCSIFVJCOMP): %m"); return 0; } @@ -464,7 +516,7 @@ sifproxyarp(unit, hisaddr) * as our local address. */ if (!get_ether_addr(hisaddr, &arpreq.arp_ha)) { - syslog(LOG_ERR, "Cannot determine ethernet address for proxy ARP"); + syslog(LOG_WARNING, "Cannot determine ethernet address for proxy ARP"); return 0; } @@ -503,7 +555,7 @@ cifproxyarp(unit, hisaddr) * get_ether_addr - get the hardware address of an interface on the * the same subnet as ipaddr. Code borrowed from myetheraddr.c * in the cslip-2.6 distribution, which is subject to the following - * copyright notice: + * copyright notice (which also applies to logwtmp below): * * Copyright (c) 1990, 1992 The Regents of the University of California. * All rights reserved. @@ -646,59 +698,25 @@ get_ether_addr(ipaddr, hwaddr) return 0; } - -/* - * run-program - execute a program with given arguments, - * but don't wait for it. - * If the program can't be executed, logs an error unless - * must_exist is 0 and the program file doesn't exist. - */ -static int n_children; +#define WTMPFILE "/usr/adm/wtmp" int -run_program(prog, args, must_exist) - char *prog; - char **args; - int must_exist; -{ - int pid; - - pid = fork(); - if (pid == -1) { - syslog(LOG_ERR, "can't fork to run %s: %m", prog); - return -1; - } - if (pid == 0) { - execv(prog, args); - if (must_exist || errno != ENOENT) - syslog(LOG_WARNING, "can't execute %s: %m", prog); - _exit(-1); - } - MAINDEBUG(("Script %s started; pid = %d", prog, pid)); - ++n_children; - return 0; -} - - -/* - * reap_kids - get status from any dead child processes, - * and log a message for abnormal terminations. - */ -void -reap_kids() +logwtmp(line, name, host) + char *line, *name, *host; { - int pid, status; + int fd; + struct stat buf; + struct utmp ut; - if (n_children == 0) - return; - if ((pid = waitpid(-1, &status, WNOHANG)) == -1) { - if (errno != ECHILD) - syslog(LOG_ERR, "waitpid: %m"); + if ((fd = open(WTMPFILE, O_WRONLY|O_APPEND, 0)) < 0) return; + if (!fstat(fd, &buf)) { + (void)strncpy(ut.ut_line, line, sizeof(ut.ut_line)); + (void)strncpy(ut.ut_name, name, sizeof(ut.ut_name)); + (void)strncpy(ut.ut_host, host, sizeof(ut.ut_host)); + (void)time(&ut.ut_time); + if (write(fd, (char *)&ut, sizeof(struct utmp)) != sizeof(struct utmp)) + (void)ftruncate(fd, buf.st_size); } - --n_children; - if (WIFSIGNALED(status)) { - syslog(LOG_WARNING, "child process %d terminated with signal %d", - pid, WTERMSIG(status)); - } + close(fd); }