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udev-acl: really fix ACL assignment in CK events

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The previous fix for udev-acl was incomplete. The ACL were not properly
assigned to the new user when switching from root's session because of
the test for 'uid != 0'.

Centralize the special handling of root to a single place (in set_facl).

https://bugzilla.redhat.com/show_bug.cgi?id=608712
This commit is contained in:
Michal Schmidt 2010-08-04 11:53:25 +02:00 committed by Kay Sievers
parent 939cc18afc
commit 9ac90ae153
1 changed files with 19 additions and 18 deletions
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37
extras/udev-acl/udev-acl.c
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@ -12,20 +12,18 @@
* General Public License for more details:
*/
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <inttypes.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <acl/libacl.h>
#include <sys/stat.h>
#include <errno.h>
#include <getopt.h>
#include <sys/stat.h>
#include <glib.h>
#include <acl/libacl.h>
#include <inttypes.h>
#include <libudev.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
static int debug;
@ -45,6 +43,10 @@ static int set_facl(const char* filename, uid_t uid, int add)
acl_permset_t permset;
int ret;
/* don't touch ACLs for root */
if (uid == 0)
return 0;
/* read current record */
acl = acl_get_file(filename, ACL_TYPE_ACCESS);
if (!acl)
@ -190,8 +192,6 @@ static int consolekit_called(const char *ck_action, uid_t *uid, uid_t *uid2, con
if (s == NULL)
return -1;
u = strtoul(s, NULL, 10);
if (u == 0)
return 0;
s = getenv("CK_SEAT_SESSION_IS_LOCAL");
if (s == NULL)
@ -205,8 +205,6 @@ static int consolekit_called(const char *ck_action, uid_t *uid, uid_t *uid2, con
if (s == NULL)
return -1;
u = strtoul(s, NULL, 10);
if (u == 0)
return 0;
s = getenv("CK_SEAT_OLD_SESSION_IS_LOCAL");
if (s == NULL)
@ -331,6 +329,7 @@ int main (int argc, char* argv[])
};
int action = -1;
const char *device = NULL;
bool uid_given = false;
uid_t uid = 0;
uid_t uid2 = 0;
const char* remove_session_id = NULL;
@ -357,6 +356,7 @@ int main (int argc, char* argv[])
device = optarg;
break;
case 'u':
uid_given = true;
uid = strtoul(optarg, NULL, 10);
break;
case 'd':
@ -369,8 +369,9 @@ int main (int argc, char* argv[])
}
}
if (action < 0 && device == NULL && uid == 0)
consolekit_called(argv[optind], &uid, &uid2, &remove_session_id, &action);
if (action < 0 && device == NULL && !uid_given)
if (!consolekit_called(argv[optind], &uid, &uid2, &remove_session_id, &action))
uid_given = true;
if (action < 0) {
fprintf(stderr, "missing action\n\n");
@ -378,13 +379,13 @@ int main (int argc, char* argv[])
goto out;
}
if (device != NULL && uid != 0) {
if (device != NULL && uid_given) {
fprintf(stderr, "only one option, --device=DEVICEFILE or --user=UID expected\n\n");
rc = 3;
goto out;
}
if (uid != 0) {
if (uid_given) {
switch (action) {
case ACTION_ADD:
/* Add ACL for given uid to all matching devices. */