int main(int argc, char* argv[])
{
- struct hotplug_msg message;
+ struct hotplug_msg msg;
char *action;
char *devpath;
char *subsystem;
struct sockaddr_un saddr;
socklen_t addrlen;
int started_daemon = 0;
+ struct iovec iov;
+ struct msghdr smsg;
+ char cred_msg[CMSG_SPACE(sizeof(struct ucred))];
+ struct cmsghdr *cmsg;
+ struct ucred *cred;
+
+
#ifdef DEBUG
init_logging("udevsend");
strcpy(&saddr.sun_path[1], UDEVD_SOCK_PATH);
addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(saddr.sun_path+1) + 1;
- size = build_hotplugmsg(&message, action, devpath, subsystem, seq);
-
+ size = build_hotplugmsg(&msg, action, devpath, subsystem, seq);
+
+ /* prepare message with credentials to authenticate ourself */
+ iov.iov_base = &msg;
+ iov.iov_len = size;
+
+ smsg.msg_name = &saddr;
+ smsg.msg_namelen = addrlen;
+ smsg.msg_iov = &iov;
+ smsg.msg_iovlen = 1;
+ smsg.msg_control = cred_msg;
+ smsg.msg_controllen = CMSG_LEN(sizeof(struct ucred));;
+ smsg.msg_flags = 0;
+
+ cmsg = CMSG_FIRSTHDR(&smsg);
+ cmsg->cmsg_level = SOL_SOCKET;
+ cmsg->cmsg_type = SCM_CREDENTIALS;
+ cmsg->cmsg_len = sizeof(cred_msg);
+ cred = (struct ucred *) CMSG_DATA(cmsg);
+ cred->uid = getuid();
+ cred->gid = getgid();
+ cred->pid = getpid();
+ cred->pid = getpid();
+
/* If we can't send, try to start daemon and resend message */
loop = UDEVSEND_CONNECT_RETRY;
while (loop--) {
- retval = sendto(sock, &message, size, 0, (struct sockaddr*)&saddr, addrlen);
+ retval = sendmsg(sock, &smsg, 0);
if (retval != -1) {
retval = 0;
goto close_and_exit;