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Move runas handling from vl.c to OS specific files.

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Move code to handle runas, ie. change of user id of QEMU process
to OS specific files and provide dummy stub for Win32.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: Juan Quintela <quintela@redhat.com>
Acked-by: Richard Henderson <rth@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Jes Sorensen 2010-06-10 11:42:26 +02:00 • committed by Blue Swirl
parent 59a5264b99
commit 8847cfe8aa
4 changed files with 31 additions and 28 deletions
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28
os-posix.c
View file

@ -28,6 +28,7 @@
#include <signal.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <pwd.h>
#include <libgen.h>
/* Needed early for CONFIG_BSD etc. */
@ -36,6 +37,8 @@
#include "net/slirp.h"
#include "qemu-options.h"
static struct passwd *user_pwd;
void os_setup_early_signal_handling(void)
{
struct sigaction act;
@ -146,6 +149,31 @@ void os_parse_cmd_args(int index, const char *optarg)
exit(1);
break;
#endif
case QEMU_OPTION_runas:
user_pwd = getpwnam(optarg);
if (!user_pwd) {
fprintf(stderr, "User \"%s\" doesn't exist\n", optarg);
exit(1);
}
break;
}
return;
}
void os_change_process_uid(void)
{
if (user_pwd) {
if (setgid(user_pwd->pw_gid) < 0) {
fprintf(stderr, "Failed to setgid(%d)\n", user_pwd->pw_gid);
exit(1);
}
if (setuid(user_pwd->pw_uid) < 0) {
fprintf(stderr, "Failed to setuid(%d)\n", user_pwd->pw_uid);
exit(1);
}
if (setuid(0) != -1) {
fprintf(stderr, "Dropping privileges failed\n");
exit(1);
}
}
}