freebsd-dev/usr.sbin/ppp/physical.c
Brian Somers a8d7acdc03 Change ``set device'' so that it parses its arguments as one
device per argument rather than the old way of concatenating
everything then splitting the result at commas and whitespace.

Old syntax of ``set device /dev/cuaa0, /dev/cuaa1''
may no longer contain the comma, but syntax such as
``set device "!ssh host ppp -direct label"'' is now
possible.
1999-04-27 00:23:57 +00:00

236 lines
5.5 KiB
C

/*
* Written by Eivind Eklund <eivind@yes.no>
* for Yes Interactive
*
* Copyright (C) 1998, Yes Interactive. All rights reserved.
*
* Redistribution and use in any form is permitted. Redistribution in
* source form should include the above copyright and this set of
* conditions, because large sections american law seems to have been
* created by a bunch of jerks on drugs that are now illegal, forcing
* me to include this copyright-stuff instead of placing this in the
* public domain. The name of of 'Yes Interactive' or 'Eivind Eklund'
* 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.
*
* $Id: physical.c,v 1.7 1999/01/10 01:26:29 brian Exp $
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <utmp.h>
#include <sys/tty.h>
#include "defs.h"
#include "mbuf.h"
#include "timer.h"
#include "lqr.h"
#include "hdlc.h"
#include "throughput.h"
#include "fsm.h"
#include "lcp.h"
#include "async.h"
#include "ccp.h"
#include "link.h"
#include "descriptor.h"
#include "physical.h"
#include "log.h"
#include "id.h"
/* External calls - should possibly be moved inline */
extern int IntToSpeed(int);
int
physical_GetFD(struct physical *phys) {
return phys->fd;
}
int
physical_IsSync(struct physical *phys) {
return phys->cfg.speed == 0;
}
const char *physical_GetDevice(struct physical *phys)
{
return phys->name.full;
}
void
physical_SetDeviceList(struct physical *p, int argc, const char *const *argv)
{
int f, pos;
p->cfg.devlist[sizeof p->cfg.devlist - 1] = '\0';
for (f = 0, pos = 0; f < argc && pos < sizeof p->cfg.devlist - 1; f++) {
if (pos)
p->cfg.devlist[pos++] = '\0';
strncpy(p->cfg.devlist + pos, argv[f], sizeof p->cfg.devlist - pos - 1);
pos += strlen(p->cfg.devlist + pos);
}
p->cfg.ndev = f;
}
int
physical_SetSpeed(struct physical *phys, int speed) {
if (IntToSpeed(speed) != B0) {
phys->cfg.speed = speed;
return 1;
} else {
return 0;
}
}
void
physical_SetSync(struct physical *phys) {
phys->cfg.speed = 0;
}
int
physical_SetRtsCts(struct physical *phys, int enable) {
phys->cfg.rts_cts = enable ? 1 : 0;
return 1;
}
/* Encapsulation for a read on the FD. Avoids some exposure, and
concentrates control. */
ssize_t
physical_Read(struct physical *phys, void *buf, size_t nbytes) {
return read(phys->fd, buf, nbytes);
}
ssize_t
physical_Write(struct physical *phys, const void *buf, size_t nbytes) {
return write(phys->fd, buf, nbytes);
}
int
physical_UpdateSet(struct descriptor *d, fd_set *r, fd_set *w, fd_set *e,
int *n, int force)
{
struct physical *p = descriptor2physical(d);
int sets;
sets = 0;
if (p->fd >= 0) {
if (r) {
FD_SET(p->fd, r);
log_Printf(LogTIMER, "%s: fdset(r) %d\n", p->link.name, p->fd);
sets++;
}
if (e) {
FD_SET(p->fd, e);
log_Printf(LogTIMER, "%s: fdset(e) %d\n", p->link.name, p->fd);
sets++;
}
if (w && (force || link_QueueLen(&p->link) || p->out)) {
FD_SET(p->fd, w);
log_Printf(LogTIMER, "%s: fdset(w) %d\n", p->link.name, p->fd);
sets++;
}
if (sets && *n < p->fd + 1)
*n = p->fd + 1;
}
return sets;
}
int
physical_RemoveFromSet(struct physical *p, fd_set *r, fd_set *w, fd_set *e)
{
int sets;
sets = 0;
if (p->fd >= 0) {
if (r && FD_ISSET(p->fd, r)) {
FD_CLR(p->fd, r);
log_Printf(LogTIMER, "%s: fdunset(r) %d\n", p->link.name, p->fd);
sets++;
}
if (e && FD_ISSET(p->fd, e)) {
FD_CLR(p->fd, e);
log_Printf(LogTIMER, "%s: fdunset(e) %d\n", p->link.name, p->fd);
sets++;
}
if (w && FD_ISSET(p->fd, w)) {
FD_CLR(p->fd, w);
log_Printf(LogTIMER, "%s: fdunset(w) %d\n", p->link.name, p->fd);
sets++;
}
}
return sets;
}
int
physical_IsSet(struct descriptor *d, const fd_set *fdset)
{
struct physical *p = descriptor2physical(d);
return p->fd >= 0 && FD_ISSET(p->fd, fdset);
}
void
physical_Login(struct physical *phys, const char *name)
{
if (phys->type == PHYS_DIRECT && phys->isatty) {
if (phys->Utmp)
log_Printf(LogERROR, "Oops, already logged in on %s\n", phys->name.base);
else {
struct utmp ut;
const char *connstr;
memset(&ut, 0, sizeof ut);
time(&ut.ut_time);
strncpy(ut.ut_name, name, sizeof ut.ut_name);
strncpy(ut.ut_line, phys->name.base, sizeof ut.ut_line);
if ((connstr = getenv("CONNECT")))
/* mgetty sets this to the connection speed */
strncpy(ut.ut_host, connstr, sizeof ut.ut_host);
ID0login(&ut);
phys->Utmp = 1;
}
}
}
void
physical_Logout(struct physical *phys)
{
if (phys->Utmp) {
ID0logout(phys->name.base);
phys->Utmp = 0;
}
}
int
physical_SetMode(struct physical *p, int mode)
{
if ((p->type & (PHYS_DIRECT|PHYS_DEDICATED) ||
mode & (PHYS_DIRECT|PHYS_DEDICATED)) &&
(!(p->type & PHYS_DIRECT) || !(mode & PHYS_BACKGROUND))) {
log_Printf(LogWARN, "%s: Cannot change mode %s to %s\n", p->link.name,
mode2Nam(p->type), mode2Nam(mode));
return 0;
}
p->type = mode;
return 1;
}
void
physical_DeleteQueue(struct physical *p)
{
if (p->out) {
mbuf_Free(p->out);
p->out = NULL;
}
link_DeleteQueue(&p->link);
}