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Daemonize qrexec_daemon.

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This commit is contained in:
Rafal Wojtczuk 2011-03-04 17:38:59 +01:00
parent d6f327492d
commit b899bfc9ba
1 changed files with 31 additions and 2 deletions
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33
qrexec/qrexec_daemon.c
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@ -25,6 +25,8 @@
#include <unistd.h> #include <unistd.h>
#include <signal.h> #include <signal.h>
#include <errno.h> #include <errno.h>
#include <fcntl.h>
#include <sys/stat.h>
#include "qrexec.h" #include "qrexec.h"
#include "buffer.h" #include "buffer.h"
#include "glue.h" #include "glue.h"
@ -49,10 +51,37 @@ int server_fd;
void init(int xid) void init(int xid)
{ {
char dbg_log[256];
int logfd;
if (xid <= 0) { if (xid <= 0) {
fprintf(stderr, "domain id=0?\n"); fprintf(stderr, "domain id=0?\n");
exit(1); exit(1);
} }
switch (fork()) {
case -1:
perror("fork");
exit(1);
case 0:
break;
default:
exit(0);
}
close(0);
snprintf(dbg_log, sizeof(dbg_log),
"/var/log/qubes/qrexec.%d.log", xid);
umask(0007);
logfd = open(dbg_log, O_WRONLY | O_CREAT | O_TRUNC, 0640);
umask(0077);
dup2(logfd, 1);
dup2(logfd, 2);
chdir("/var/run/qubes");
if (setsid() < 0) {
perror("setsid()");
exit(1);
}
server_fd = get_server_socket(xid); server_fd = get_server_socket(xid);
peer_client_init(xid, REXEC_PORT); peer_client_init(xid, REXEC_PORT);
setuid(getuid()); setuid(getuid());
@ -209,8 +238,8 @@ void handle_agent_data()
struct server_header s_hdr; struct server_header s_hdr;
read_all_vchan_ext(&s_hdr, sizeof s_hdr); read_all_vchan_ext(&s_hdr, sizeof s_hdr);
// fprintf(stderr, "got %x %x %x\n", s_hdr.type, s_hdr.clid, // fprintf(stderr, "got %x %x %x\n", s_hdr.type, s_hdr.clid,
// s_hdr.len); // s_hdr.len);
if (s_hdr.clid >= MAX_FDS || s_hdr.clid < 0) { if (s_hdr.clid >= MAX_FDS || s_hdr.clid < 0) {
fprintf(stderr, "from agent: clid=%d\n", s_hdr.clid); fprintf(stderr, "from agent: clid=%d\n", s_hdr.clid);