#include <errno.h>
#include <syslog.h>
#include <fcntl.h>
+#include <string.h>
+#include <time.h>
+#include <utmp.h>
+#include <poll.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/socket.h>
char modname[FMNAMESZ+1];
} str_modules[MAXMODULES];
static int str_module_count = 0;
+static int pushed_ppp;
+static int closed_stdio;
+
+extern int hungup; /* has the physical layer been disconnected? */
+extern int kdebugflag;
+extern int default_device;
+extern int restore_term;
+
+#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
+
+/*
+ * daemon - Detach us from the terminal session.
+ */
+int
+daemon(nochdir, noclose)
+ int nochdir, noclose;
+{
+ int pid;
+
+ if ((pid = fork()) < 0)
+ return -1;
+ if (pid != 0)
+ exit(0); /* parent dies */
+ setsid();
+ if (!nochdir)
+ chdir("/");
+ if (!noclose) {
+ fclose(stdin); /* don't need stdin, stdout, stderr */
+ fclose(stdout);
+ fclose(stderr);
+ }
+ return 0;
+}
-extern int hungup; /* has the physical layer been disconnected? */
/*
* ppp_available - check if this kernel supports 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");
die(1);
}
+ /* push the compress module */
+ if (ioctl(fd, I_PUSH, "pppcomp") < 0) {
+ syslog(LOG_WARNING, "ioctl(I_PUSH, ppp_comp): %m");
+ }
/* finally, push the ppp_if module that actually handles the */
/* network interface */
if (ioctl(fd, I_PUSH, "pppif") < 0) {
syslog(LOG_ERR, "ioctl(I_PUSH, ppp_if): %m");
die(1);
}
- if (ioctl(fd, I_SETSIG, S_INPUT) < 0) {
- syslog(LOG_ERR, "ioctl(I_SETSIG, S_INPUT): %m");
- die(1);
- }
+ pushed_ppp = 1;
/* read mode, message non-discard mode */
if (ioctl(fd, I_SRDOPT, RMSGN) < 0) {
syslog(LOG_ERR, "ioctl(I_SRDOPT, RMSGN): %m");
die(1);
}
- /* Flush any waiting messages, or we'll never get SIGPOLL */
- if (ioctl(fd, I_FLUSH, FLUSHRW) < 0) {
- syslog(LOG_ERR, "ioctl(I_FLUSH, FLUSHRW): %m");
- die(1);
- }
/*
* Find out which interface we were given.
* (ppp_if handles this ioctl)
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));
+ /* close stdin, stdout, stderr if they might refer to the device */
+ if (default_device && !closed_stdio) {
+ int i;
+
+ for (i = 0; i <= 2; ++i)
+ if (i != fd && i != s)
+ close(i);
+ closed_stdio = 1;
+ }
}
/*
void
disestablish_ppp()
{
- /*EMPTY*/
+ int flags;
+ char *s;
if (hungup) {
/* we can't push or pop modules after the stream has hung up */
str_module_count = 0;
+ restore_term = 0; /* nor can we fix up terminal settings */
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",
- str_modules[str_module_count-1].modname);
+ if (errno != ENXIO)
+ 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",
str_modules[str_module_count-1].modname));
if (unit != 0)
MAINDEBUG((LOG_WARNING, "output: unit != 0!"));
+ if (debug)
+ log_packet(p, len, "sent ");
str.len = len;
str.buf = (caddr_t) p;
- if(putmsg(fd, NULL, &str, 0) < 0) {
- syslog(LOG_ERR, "putmsg: %m");
- die(1);
+ if (putmsg(fd, NULL, &str, 0) < 0) {
+ if (errno != ENXIO) {
+ syslog(LOG_ERR, "putmsg: %m");
+ die(1);
+ }
}
}
+wait_input(timo)
+ struct timeval *timo;
+{
+ int t;
+ struct pollfd pfd;
+
+ t = timo == NULL? -1: timo->tv_sec * 1000 + timo->tv_usec / 1000;
+ pfd.fd = fd;
+ pfd.events = POLLIN | POLLPRI | POLLHUP;
+ if (poll(&pfd, 1, t) < 0 && errno != EINTR) {
+ syslog(LOG_ERR, "poll: %m");
+ die(1);
+ }
+}
+
/*
* read_packet - get a PPP packet from the serial device.
*/
read_packet(buf)
u_char *buf;
{
- struct strbuf str;
+ struct strbuf str, ctl;
int len, i;
+ unsigned char ctlbuf[16];
str.maxlen = MTU+DLLHEADERLEN;
str.buf = (caddr_t) buf;
+ ctl.maxlen = sizeof(ctlbuf);
+ ctl.buf = (caddr_t) ctlbuf;
i = 0;
- len = getmsg(fd, NULL, &str, &i);
+ len = getmsg(fd, &ctl, &str, &i);
if (len < 0) {
if (errno == EAGAIN || errno == EWOULDBLOCK) {
return -1;
}
if (len)
MAINDEBUG((LOG_DEBUG, "getmsg returned 0x%x",len));
+ if (ctl.len > 0)
+ syslog(LOG_NOTICE, "got ctrl msg len %d %x %x\n", ctl.len,
+ ctlbuf[0], ctlbuf[1]);
if (str.len < 0) {
MAINDEBUG((LOG_DEBUG, "getmsg short return length %d", str.len));
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)
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 */
+}
+
+/*
+ * ccp_test - ask kernel whether a given compression method
+ * is acceptable for use.
+ */
+ccp_test(unit, opt_ptr, opt_len, for_transmit)
+ int unit, opt_len, for_transmit;
+ u_char *opt_ptr;
+{
+ struct ppp_option_data data;
+
+ if ((unsigned) opt_len > MAX_PPP_OPTION)
+ opt_len = MAX_PPP_OPTION;
+ data.length = opt_len;
+ data.transmit = for_transmit;
+ BCOPY(opt_ptr, data.opt_data, opt_len);
+ return ioctl(fd, SIOCSCOMPRESS, (caddr_t) &data) >= 0;
+}
+
+/*
+ * ccp_flags_set - inform kernel about the current state of CCP.
+ */
+void
+ccp_flags_set(unit, isopen, isup)
+ int unit, isopen, isup;
+{
+ int x;
+
+ x = (isopen? 1: 0) + (isup? 2: 0);
+ if (ioctl(fd, SIOCSIFCOMP, (caddr_t) &x) < 0 && errno != ENOTTY)
+ syslog(LOG_ERR, "ioctl (SIOCSIFCOMP): %m");
}
/*
* sifvjcomp - config tcp header compression
*/
int
-sifvjcomp(u, vjcomp, cidcomp)
+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;
}
*/
int
sifup(u)
+ int u;
{
struct ifreq ifr;
*/
int
sifdown(u)
+ int u;
{
struct ifreq ifr;
strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
*/
int
sifaddr(u, o, h, m)
+ int u;
+ u_long o, h, m;
{
int ret;
struct ifreq ifr;
*/
int
cifaddr(u, o, h)
+ int u;
+ u_long o, h;
{
struct rtentry rt;
*/
int
sifdefaultroute(u, g)
+ int u;
+ u_long g;
{
struct rtentry rt;
*/
int
cifdefaultroute(u, g)
+ int u;
+ u_long g;
{
struct rtentry rt;
* 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;
}
* 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.
static struct nlist nl[] = {
#define N_IFNET 0
{ "_ifnet" },
- 0
+ { 0 }
};
static void kread();
/* couldn't find one */
return 0;
}
+
+#define WTMPFILE "/usr/adm/wtmp"
+
+int
+logwtmp(line, name, host)
+ char *line, *name, *host;
+{
+ int fd;
+ struct stat buf;
+ struct utmp ut;
+
+ 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);
+ }
+ close(fd);
+}
projects / ppp.git / blobdiff