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/* Copyright 2004 Red Hat, Inc.
*
* This software may be freely redistributed under the terms of the GNU
* public license.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <ctype.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <popt.h>
#include <sys/mman.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/un.h>
#include <sys/utsname.h>
#include <kudzu/kudzu.h>
char *setupFile()
{
struct stat sbuf;
char path[512];
int fd;
struct utsname utsbuf;
char *buf = NULL;
uname(&utsbuf);
snprintf(path,512,"/lib/modules/%s/modules.dep",utsbuf.release);
if (!stat(path,&sbuf)) {
fd = open(path,O_RDONLY);
buf = mmap(0,sbuf.st_size,PROT_READ,MAP_SHARED,fd,0);
close(fd);
}
return buf;
}
int isAvailable(char *modulename)
{
char mod_name[100];
static char *buf = NULL;
if (!buf) {
buf = setupFile();
if (!buf)
return 0;
}
snprintf(mod_name,100,"/%s.ko:",modulename);
if (strstr(buf,mod_name))
return 1;
snprintf(mod_name,100,"/%s.ko.gz:",modulename);
if (strstr(buf,mod_name))
return 1;
return 0;
}
char *dumpDevices(struct device **devlist)
{
int fds[2],x;
FILE *tmp;
char *buf = NULL;
pipe(fds);
tmp = fdopen(fds[1],"w");
buf = NULL;
for (x = 0; devlist[x]; x++) {
char b[4096];
devlist[x]->writeDevice(tmp,devlist[x]);
fflush(tmp);
memset(b,'\0',4096);
while (read(fds[0],b,4096)) {
if (!buf) {
buf = calloc(strlen(b)+1,sizeof(char));
strcpy(buf,b);
buf[strlen(b)] = '\0';
} else {
buf = realloc(buf, strlen(buf)+strlen(b)+1);
sprintf(buf,"%s%s",buf,b);
buf[strlen(buf)+strlen(b)] = '\0';
}
if (strlen(b) != 4096)
break;
}
}
close(fds[0]);
close(fds[1]);
return buf;
}
void waitForConnection(char *buf)
{
int sock, fd, socklen;
struct sockaddr_un addr;
sock = socket(PF_UNIX, SOCK_STREAM, 0);
if (sock == -1) return;
memset(addr.sun_path,'\0',sizeof(addr.sun_path));
sprintf(addr.sun_path, "akudzu_config_socket");
addr.sun_family= AF_UNIX;
addr.sun_path[0] = '\0';
if (bind(sock, &addr, sizeof(struct sockaddr_un)) == -1)
return;
if (listen(sock, 1) == -1)
return;
fd = accept(sock, &addr, &socklen);
if (fd == -1)
return;
write(fd,buf,strlen(buf));
close(fd);
close(sock);
}
int main(int argc, char **argv)
{
char *bus = NULL, *class = NULL, *buf = NULL;
int x, rc, isdaemon = 0;
enum deviceBus probeBus = BUS_UNSPEC & ~BUS_SERIAL;
enum deviceClass probeClass = CLASS_UNSPEC;
poptContext context;
struct device **devs;
struct poptOption options[] = {
POPT_AUTOHELP
{ "bus", 'b', POPT_ARG_STRING, &bus, 0,
"probe only the specified 'bus'",
NULL
},
{ "class", 'c', POPT_ARG_STRING, &class, 0,
"probe only for the specified 'class'",
NULL
},
{ "daemon", 'd', POPT_ARG_NONE, &isdaemon, 0,
NULL, NULL
},
{ 0, 0, 0, 0, 0, 0 }
};
context = poptGetContext("kmodule", argc, (const char **)argv, options, 0);
while ((rc = poptGetNextOpt(context)) > 0) {
}
if (( rc < -1)) {
fprintf(stderr, "%s: %s\n",
poptBadOption(context, POPT_BADOPTION_NOALIAS),
poptStrerror(rc));
exit(-1);
}
if (bus) {
for (x=0; bus[x]; x++)
bus[x] = toupper(bus[x]);
for (x=0; buses[x].string && strcmp(buses[x].string,bus); x++);
if (buses[x].string)
probeBus = buses[x].busType;
}
if (class) {
for (x=0; class[x]; x++)
class[x] = toupper(class[x]);
for (x=0; classes[x].string && strcmp(classes[x].string,class); x++);
if (classes[x].string)
probeClass = classes[x].classType;
}
initializeBusDeviceList(probeBus);
devs = probeDevices(probeClass, probeBus, PROBE_ALL|PROBE_NOLOAD|PROBE_SAFE);
if (!devs)
return 0;
for (x = 0; devs[x]; x++) {
if (devs[x]->driver && isAvailable(devs[x]->driver)) {
int i;
for (i = 0; classes[i].classType; i++)
if (devs[x]->type == classes[i].classType) {
break;
}
printf("%s %s\n",classes[i].string,devs[x]->driver);
}
}
if (isdaemon) {
buf = dumpDevices(devs);
daemon(0,0);
waitForConnection(buf);
}
return 0;
}
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