#include "udevd.h"
#include "logging.h"
+/* global variables*/
+static int udevsendsock;
+
static int pipefds[2];
static unsigned long long expected_seqnum = 0;
static volatile int sigchilds_waiting;
switch (pid) {
case 0:
/* child */
+ close(udevsendsock);
+ logging_close();
execle(udev_bin, "udev", msg->subsystem, NULL, msg->envp);
dbg("exec of child failed");
_exit(1);
static struct hotplug_msg *running_with_devpath(struct hotplug_msg *msg)
{
struct hotplug_msg *loop_msg;
- list_for_each_entry(loop_msg, &running_list, list)
- if (strncmp(loop_msg->devpath, msg->devpath, sizeof(loop_msg->devpath)) == 0)
+ list_for_each_entry(loop_msg, &running_list, list) {
+ if (loop_msg->devpath == NULL || msg->devpath == NULL)
+ continue;
+
+ if (strcmp(loop_msg->devpath, msg->devpath) == 0)
return loop_msg;
+ }
+
return NULL;
}
/* copy environment buffer and reconstruct envp */
memcpy(msg->envbuf, usend_msg.envbuf, envbuf_size);
bufpos = 0;
- for (i = 0; (bufpos < envbuf_size) && (i < HOTPLUG_NUM_ENVP-1); i++) {
+ for (i = 0; (bufpos < envbuf_size) && (i < HOTPLUG_NUM_ENVP-2); i++) {
int keylen;
char *key;
if (strncmp(key, "SEQNUM=", 7) == 0)
msg->seqnum = strtoull(&key[7], NULL, 10);
}
+ msg->envp[i++] = "MANAGED_EVENT=1";
msg->envp[i] = NULL;
/* if no seqnum is given, we move straight to exec queue */
int main(int argc, char *argv[], char *envp[])
{
- int ssock, maxsockplus;
+ int maxsockplus;
struct sockaddr_un saddr;
socklen_t addrlen;
int retval, fd;
if (getuid() != 0) {
dbg("need to be root, exit");
- _exit(1);
+ goto exit;
}
/* make sure we don't lock any path */
fd = open( "/dev/null", O_RDWR );
if ( fd < 0 ) {
dbg("error opening /dev/null %s", strerror(errno));
- exit(1);
+ goto exit;
}
dup2(fd, 0);
dup2(fd, 1);
retval = pipe(pipefds);
if (retval < 0) {
dbg("error getting pipes: %s", strerror(errno));
- exit(1);
+ goto exit;
}
retval = fcntl(pipefds[0], F_SETFL, O_NONBLOCK);
if (retval < 0) {
dbg("error fcntl on read pipe: %s", strerror(errno));
- exit(1);
+ goto exit;
}
retval = fcntl(pipefds[0], F_SETFD, FD_CLOEXEC);
if (retval < 0) {
dbg("error fcntl on read pipe: %s", strerror(errno));
- exit(1);
+ goto exit;
}
retval = fcntl(pipefds[1], F_SETFL, O_NONBLOCK);
if (retval < 0) {
dbg("error fcntl on write pipe: %s", strerror(errno));
- exit(1);
+ goto exit;
}
retval = fcntl(pipefds[1], F_SETFD, FD_CLOEXEC);
if (retval < 0) {
dbg("error fcntl on write pipe: %s", strerror(errno));
- exit(1);
+ goto exit;
}
/* set signal handlers */
strcpy(&saddr.sun_path[1], UDEVD_SOCK_PATH);
addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(saddr.sun_path+1) + 1;
- ssock = socket(AF_LOCAL, SOCK_DGRAM, 0);
- if (ssock == -1) {
+ udevsendsock = socket(AF_LOCAL, SOCK_DGRAM, 0);
+ if (udevsendsock == -1) {
dbg("error getting socket, exit");
- exit(1);
+ goto exit;
}
- set_cloexec_flag(ssock, 1);
-
/* the bind takes care of ensuring only one copy running */
- retval = bind(ssock, (struct sockaddr *) &saddr, addrlen);
+ retval = bind(udevsendsock, (struct sockaddr *) &saddr, addrlen);
if (retval < 0) {
dbg("bind failed, exit");
+ close(udevsendsock);
goto exit;
}
- retval = fcntl(ssock, F_SETFD, FD_CLOEXEC);
- if (retval < 0) {
- dbg("error fcntl on ssock: %s", strerror(errno));
- exit(1);
- }
/* enable receiving of the sender credentials */
- setsockopt(ssock, SOL_SOCKET, SO_PASSCRED, &feature_on, sizeof(feature_on));
+ setsockopt(udevsendsock, SOL_SOCKET, SO_PASSCRED, &feature_on, sizeof(feature_on));
/* possible override of udev binary, used for testing */
udev_bin = getenv("UDEV_BIN");
udev_bin = UDEV_BIN;
FD_ZERO(&readfds);
- FD_SET(ssock, &readfds);
+ FD_SET(udevsendsock, &readfds);
FD_SET(pipefds[0], &readfds);
- maxsockplus = ssock+1;
+ maxsockplus = udevsendsock+1;
while (1) {
fd_set workreadfds = readfds;
retval = select(maxsockplus, &workreadfds, NULL, NULL, NULL);
continue;
}
- if (FD_ISSET(ssock, &workreadfds))
- handle_udevsend_msg(ssock);
+ if (FD_ISSET(udevsendsock, &workreadfds))
+ handle_udevsend_msg(udevsendsock);
if (FD_ISSET(pipefds[0], &workreadfds))
user_sighandler();
exec_queue_manager();
}
}
+
exit:
- close(ssock);
logging_close();
return 1;
}