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zdtm: Check for groups list userns01 test

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Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
This commit is contained in:
Kirill Tkhai 2017-02-24 13:38:56 +03:00 committed by Andrei Vagin
parent dff4949591
commit da9367188b
1 changed files with 30 additions and 5 deletions
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35
test/zdtm/static/userns01.c
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@ -13,6 +13,7 @@
#include <stdlib.h> #include <stdlib.h>
#include <limits.h> #include <limits.h>
#include <dirent.h> #include <dirent.h>
#include <grp.h>
#include "zdtmtst.h" #include "zdtmtst.h"
#include "lock.h" #include "lock.h"
@ -34,6 +35,7 @@ enum {
#define UID_MAP "0 10 1\n1 100 100\n" #define UID_MAP "0 10 1\n1 100 100\n"
#define GID_MAP "0 12 1\n1 112 100\n" #define GID_MAP "0 12 1\n1 112 100\n"
gid_t gid_list[] = {3, 14, 15, 92}; /* Must be sorted */
futex_t *futex; futex_t *futex;
int write_map(pid_t pid, char *file, char *map) int write_map(pid_t pid, char *file, char *map)
@ -58,11 +60,18 @@ int write_map(pid_t pid, char *file, char *map)
return 0; return 0;
} }
int compare_int(const void *a, const void *b)
{
const int *x = a, *y = b;
return *x - *y;
}
int child(void) int child(void)
{ {
gid_t gid_list2[ARRAY_SIZE(gid_list) + 1];
int i, nr, ret;
uid_t uid; uid_t uid;
gid_t gid; gid_t gid;
int ret;
ret = unshare(CLONE_NEWUSER); ret = unshare(CLONE_NEWUSER);
if (ret < 0) { if (ret < 0) {
@ -74,6 +83,12 @@ int child(void)
futex_set_and_wake(futex, CHILD_CREATED); futex_set_and_wake(futex, CHILD_CREATED);
futex_wait_while_lt(futex, MAP_WRITTEN); futex_wait_while_lt(futex, MAP_WRITTEN);
if (setgroups(ARRAY_SIZE(gid_list), gid_list) < 0) {
pr_perror("setgroups");
futex_set_and_wake(futex, EMERGENCY_ABORT);
return 2;
}
if (setgid(CHILD_GID) < 0) { if (setgid(CHILD_GID) < 0) {
pr_perror("setgid"); pr_perror("setgid");
futex_set_and_wake(futex, EMERGENCY_ABORT); futex_set_and_wake(futex, EMERGENCY_ABORT);
@ -83,7 +98,7 @@ int child(void)
if (setuid(CHILD_UID) < 0) { if (setuid(CHILD_UID) < 0) {
pr_perror("setuid"); pr_perror("setuid");
futex_set_and_wake(futex, EMERGENCY_ABORT); futex_set_and_wake(futex, EMERGENCY_ABORT);
return 2; return 4;
} }
futex_set_and_wake(futex, XIDS_SET); futex_set_and_wake(futex, XIDS_SET);
@ -91,10 +106,20 @@ int child(void)
uid = getuid(); uid = getuid();
gid = getgid(); gid = getgid();
if (uid != CHILD_UID || gid != CHILD_GID) { nr = getgroups(ARRAY_SIZE(gid_list2), gid_list2);
pr_perror("UID or GID is wrong: %d %d", uid, gid); if (uid != CHILD_UID || gid != CHILD_GID || nr != ARRAY_SIZE(gid_list)) {
pr_err("UID, GID or nr groups are wrong: %d %d %d\n", uid, gid, nr);
futex_set_and_wake(futex, EMERGENCY_ABORT); futex_set_and_wake(futex, EMERGENCY_ABORT);
return 4; return 5;
}
/* man getgroups(2) doesn't say, they are sorted */
qsort(gid_list2, nr, sizeof(gid_t), compare_int);
if (memcmp(gid_list, gid_list2, sizeof(gid_list)) != 0) {
pr_err("Groups are different:\n");
for (i = 0; i < nr; i++)
pr_err("gid_list2[%d]=%d\n", i, gid_list2[i]);
return 6;
} }
return 0; return 0;