FreeBSD-5.3/usr.sbin/pccard/pccardd/pccardd.c
/*
* Copyright (c) 1995 Andrew McRae. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef lint
static const char rcsid[] =
"$FreeBSD: src/usr.sbin/pccard/pccardd/pccardd.c,v 1.16 2003/12/26 10:01:29 maxim Exp $";
#endif /* not lint */
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/stat.h>
#define EXTERN
#include "cardd.h"
char *config_file = "/etc/defaults/pccard.conf";
static char *pid_file = "/var/run/pccardd.pid";
/*
* pathname of UNIX-domain socket
*/
static char *socket_name = "/var/tmp/.pccardd";
static char *sock = 0;
static int server_sock;
/* SIGHUP signal handler */
static void
restart(void)
{
bitstr_t bit_decl(io_inuse, IOPORTS);
bitstr_t bit_decl(mem_inuse, MEMBLKS);
int irq_inuse[16];
int i;
struct sockaddr_un sun;
bit_nclear(io_inuse, 0, IOPORTS-1);
bit_nclear(mem_inuse, 0, MEMBLKS-1);
bzero(irq_inuse, sizeof(irq_inuse));
/* compare the initial and current state of resource pool */
for (i = 0; i < IOPORTS; i++) {
if (bit_test(io_init, i) == 1 && bit_test(io_avail, i) == 0) {
if (debug_level >= 1) {
logmsg("io 0x%x seems to be in use\n", i);
}
bit_set(io_inuse, i);
}
}
for (i = 0; i < MEMBLKS; i++) {
if (bit_test(mem_init, i) == 1 && bit_test(mem_avail, i) == 0) {
if (debug_level >= 1) {
logmsg("mem 0x%x seems to be in use\n", i);
}
bit_set(mem_inuse, i);
}
}
for (i = 0; i < 16; i++) {
if (irq_init[i] == 1 && pool_irq[i] == 0) {
if (debug_level >= 1) {
logmsg("irq %d seems to be in use\n", i);
}
irq_inuse[i] = 1;
}
}
readfile(config_file);
/* reflect used resources to managed resource pool */
for (i = 0; i < IOPORTS; i++) {
if (bit_test(io_inuse, i) == 1) {
bit_clear(io_avail, i);
}
}
for (i = 0; i < MEMBLKS; i++) {
if (bit_test(mem_inuse, i) == 1) {
bit_clear(mem_avail, i);
}
}
for (i = 0; i < 16; i++) {
if (irq_inuse[i] == 1) {
pool_irq[i] = 0;
}
}
close(server_sock);
if ((server_sock = socket(PF_LOCAL, SOCK_DGRAM, 0)) < 0)
die("socket failed");
bzero(&sun, sizeof(sun));
sun.sun_family = AF_UNIX;
if (sock) {
socket_name = sock;
}
strcpy(sun.sun_path, socket_name);
slen = SUN_LEN(&sun);
(void)unlink(socket_name);
if (bind(server_sock, (struct sockaddr *) & sun, slen) < 0)
die("bind failed");
chown(socket_name, 0, 5); /* XXX - root.operator */
chmod(socket_name, 0660);
set_socket(server_sock);
}
/* SIGTERM/SIGINT signal handler */
static void
term(int sig)
{
logmsg("pccardd terminated: signal %d received", sig);
(void)unlink(pid_file);
exit(0);
}
static void
write_pid()
{
FILE *fp = fopen(pid_file, "w");
if (fp) {
fprintf(fp, "%d\n", getpid());
fclose(fp);
}
}
int doverbose = 0;
/*
* mainline code for cardd
*/
int
main(int argc, char *argv[])
{
struct slot *sp;
int count, dodebug = 0;
int probeonly = 0;
int delay = 0;
int irq_arg[16];
int irq_specified = 0;
int i;
struct sockaddr_un sun;
#define COM_OPTS ":Idf:i:s:vxz"
bzero(irq_arg, sizeof(irq_arg));
use_kern_irq = 1;
debug_level = 0;
pccard_init_sleep = 5000000;
cards = last_card = 0;
while ((count = getopt(argc, argv, COM_OPTS)) != -1) {
switch (count) {
case 'I':
use_kern_irq = 0;
break;
case 'd':
setbuf(stdout, 0);
setbuf(stderr, 0);
dodebug = 1;
break;
case 'v':
doverbose = 1;
break;
case 'f':
config_file = optarg;
break;
case 'i':
/* configure available irq */
if (sscanf(optarg, "%d", &i) != 1) {
fprintf(stderr, "%s: -i number\n", argv[0]);
exit(1);
}
irq_arg[i] = 1;
irq_specified = 1;
break;
case 's':
sock = optarg;
break;
case 'x':
probeonly = 1;
break;
case 'z':
delay = 1;
break;
case ':':
die("no config file argument");
break;
case '?':
die("illegal option");
break;
}
}
#ifdef DEBUG
dodebug = 1;
#endif
io_avail = bit_alloc(IOPORTS); /* Only supports ISA ports */
io_init = bit_alloc(IOPORTS);
/* Mem allocation done in MEMUNIT units. */
mem_avail = bit_alloc(MEMBLKS);
mem_init = bit_alloc(MEMBLKS);
readfile(config_file);
if (irq_specified) {
bcopy(irq_arg, pool_irq, sizeof(irq_arg));
bcopy(irq_arg, irq_init, sizeof(irq_arg));
}
if (doverbose)
dump_config_file();
log_setup();
if (!dodebug && !delay && !probeonly)
if (daemon(0, 0))
die("fork failed");
slots = readslots();
if (slots == 0)
die("no PC-CARD slots");
if (probeonly)
exit(0);
if (delay)
if (daemon(0, 0))
die("fork failed");
logmsg("pccardd started", NULL);
write_pid();
if ((server_sock = socket(PF_LOCAL, SOCK_DGRAM, 0)) < 0)
die("socket failed");
bzero(&sun, sizeof(sun));
sun.sun_family = AF_UNIX;
if (sock) {
socket_name = sock;
}
strcpy(sun.sun_path, socket_name);
slen = SUN_LEN(&sun);
(void)unlink(socket_name);
if (bind(server_sock, (struct sockaddr *) & sun, slen) < 0)
die("bind failed");
chown(socket_name, 0, 5); /* XXX - root.operator */
chmod(socket_name, 0660);
set_socket(server_sock);
(void)signal(SIGINT, dodebug ? term : SIG_IGN);
(void)signal(SIGTERM, term);
(void)signal(SIGHUP, (void (*)(int))restart);
for (;;) {
fd_set rmask, emask;
FD_ZERO(&emask);
FD_ZERO(&rmask);
for (sp = slots; sp; sp = sp->next)
FD_SET(sp->fd, &emask);
FD_SET(server_sock, &rmask);
count = select(32, &rmask, 0, &emask, 0);
if (count == -1) {
logerr("select");
continue;
}
if (count) {
for (sp = slots; sp; sp = sp->next)
if (FD_ISSET(sp->fd, &emask))
slot_change(sp);
if (FD_ISSET(server_sock, &rmask))
process_client();
}
}
}