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/*****************************************************************************\
* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
* Copyright (C) 2007 The Regents of the University of California.
* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
* UCRL-CODE-235197
*
* This file is part of the SPL, Solaris Porting Layer.
* For details, see <http://github.com/behlendorf/spl/>.
*
* The SPL is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* The SPL is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with the SPL. If not, see <http://www.gnu.org/licenses/>.
*****************************************************************************
* Solaris Porting LAyer Tests (SPLAT) Credential Tests.
\*****************************************************************************/
#include "splat-internal.h"
#define SPLAT_CRED_NAME "cred"
#define SPLAT_CRED_DESC "Kernel Cred Tests"
#define SPLAT_CRED_TEST1_ID 0x0e01
#define SPLAT_CRED_TEST1_NAME "cred"
#define SPLAT_CRED_TEST1_DESC "Task Credential Test"
#define SPLAT_CRED_TEST2_ID 0x0e02
#define SPLAT_CRED_TEST2_NAME "kcred"
#define SPLAT_CRED_TEST2_DESC "Kernel Credential Test"
#define SPLAT_CRED_TEST3_ID 0x0e03
#define SPLAT_CRED_TEST3_NAME "groupmember"
#define SPLAT_CRED_TEST3_DESC "Group Member Test"
#define GROUP_STR_SIZE 128
#define GROUP_STR_REDZONE 16
static int
splat_cred_test1(struct file *file, void *arg)
{
char str[GROUP_STR_SIZE];
uid_t uid, ruid, suid;
gid_t gid, rgid, sgid, *groups;
int ngroups, i, count = 0;
uid = crgetuid(CRED());
ruid = crgetruid(CRED());
suid = crgetsuid(CRED());
gid = crgetgid(CRED());
rgid = crgetrgid(CRED());
sgid = crgetsgid(CRED());
crhold(CRED());
ngroups = crgetngroups(CRED());
groups = crgetgroups(CRED());
memset(str, 0, GROUP_STR_SIZE);
for (i = 0; i < ngroups; i++) {
count += sprintf(str + count, "%d ", groups[i]);
if (count > (GROUP_STR_SIZE - GROUP_STR_REDZONE)) {
splat_vprint(file, SPLAT_CRED_TEST1_NAME,
"Failed too many group entries for temp "
"buffer: %d, %s\n", ngroups, str);
return -ENOSPC;
}
}
crfree(CRED());
splat_vprint(file, SPLAT_CRED_TEST1_NAME,
"uid: %d ruid: %d suid: %d "
"gid: %d rgid: %d sgid: %d\n",
uid, ruid, suid, gid, rgid, sgid);
splat_vprint(file, SPLAT_CRED_TEST1_NAME,
"ngroups: %d groups: %s\n", ngroups, str);
if (uid || ruid || suid || gid || rgid || sgid) {
splat_vprint(file, SPLAT_CRED_TEST1_NAME,
"Failed expected all uids+gids to be %d\n", 0);
return -EIDRM;
}
if (ngroups > NGROUPS_MAX) {
splat_vprint(file, SPLAT_CRED_TEST1_NAME,
"Failed ngroups must not exceed NGROUPS_MAX: "
"%d > %d\n", ngroups, NGROUPS_MAX);
return -EIDRM;
}
splat_vprint(file, SPLAT_CRED_TEST1_NAME,
"Success sane CRED(): %d\n", 0);
return 0;
} /* splat_cred_test1() */
static int
splat_cred_test2(struct file *file, void *arg)
{
char str[GROUP_STR_SIZE];
uid_t uid, ruid, suid;
gid_t gid, rgid, sgid, *groups;
int ngroups, i, count = 0;
uid = crgetuid(kcred);
ruid = crgetruid(kcred);
suid = crgetsuid(kcred);
gid = crgetgid(kcred);
rgid = crgetrgid(kcred);
sgid = crgetsgid(kcred);
crhold(kcred);
ngroups = crgetngroups(kcred);
groups = crgetgroups(kcred);
memset(str, 0, GROUP_STR_SIZE);
for (i = 0; i < ngroups; i++) {
count += sprintf(str + count, "%d ", groups[i]);
if (count > (GROUP_STR_SIZE - GROUP_STR_REDZONE)) {
splat_vprint(file, SPLAT_CRED_TEST2_NAME,
"Failed too many group entries for temp "
"buffer: %d, %s\n", ngroups, str);
return -ENOSPC;
}
}
crfree(kcred);
splat_vprint(file, SPLAT_CRED_TEST2_NAME,
"uid: %d ruid: %d suid: %d "
"gid: %d rgid: %d sgid: %d\n",
uid, ruid, suid, gid, rgid, sgid);
splat_vprint(file, SPLAT_CRED_TEST2_NAME,
"ngroups: %d groups: %s\n", ngroups, str);
if (uid || ruid || suid || gid || rgid || sgid) {
splat_vprint(file, SPLAT_CRED_TEST2_NAME,
"Failed expected all uids+gids to be %d\n", 0);
return -EIDRM;
}
if (ngroups > NGROUPS_MAX) {
splat_vprint(file, SPLAT_CRED_TEST2_NAME,
"Failed ngroups must not exceed NGROUPS_MAX: "
"%d > %d\n", ngroups, NGROUPS_MAX);
return -EIDRM;
}
splat_vprint(file, SPLAT_CRED_TEST2_NAME,
"Success sane kcred: %d\n", 0);
return 0;
} /* splat_cred_test2() */
/*
* On most/all systems it can be expected that a task with root
* permissions also is a member of the root group, Since the
* test suite is always run as root we check first that CRED() is
* a member of the root group, and secondly that it is not a member
* of our fake group. This test will break is someone happens to
* create group number NGROUPS_MAX-1 and then added root to it.
*/
static int
splat_cred_test3(struct file *file, void *arg)
{
gid_t root_gid, fake_gid;
int rc;
root_gid = 0;
fake_gid = NGROUPS_MAX-1;
rc = groupmember(root_gid, CRED());
if (!rc) {
splat_vprint(file, SPLAT_CRED_TEST3_NAME,
"Failed root git %d expected to be member "
"of CRED() groups: %d\n", root_gid, rc);
return -EIDRM;
}
rc = groupmember(fake_gid, CRED());
if (rc) {
splat_vprint(file, SPLAT_CRED_TEST3_NAME,
"Failed fake git %d expected not to be member "
"of CRED() groups: %d\n", fake_gid, rc);
return -EIDRM;
}
splat_vprint(file, SPLAT_CRED_TEST3_NAME, "Success root gid "
"is a member of the expected groups: %d\n", rc);
return rc;
} /* splat_cred_test3() */
splat_subsystem_t *
splat_cred_init(void)
{
splat_subsystem_t *sub;
sub = kmalloc(sizeof(*sub), GFP_KERNEL);
if (sub == NULL)
return NULL;
memset(sub, 0, sizeof(*sub));
strncpy(sub->desc.name, SPLAT_CRED_NAME, SPLAT_NAME_SIZE);
strncpy(sub->desc.desc, SPLAT_CRED_DESC, SPLAT_DESC_SIZE);
INIT_LIST_HEAD(&sub->subsystem_list);
INIT_LIST_HEAD(&sub->test_list);
spin_lock_init(&sub->test_lock);
sub->desc.id = SPLAT_SUBSYSTEM_CRED;
SPLAT_TEST_INIT(sub, SPLAT_CRED_TEST1_NAME, SPLAT_CRED_TEST1_DESC,
SPLAT_CRED_TEST1_ID, splat_cred_test1);
SPLAT_TEST_INIT(sub, SPLAT_CRED_TEST2_NAME, SPLAT_CRED_TEST2_DESC,
SPLAT_CRED_TEST2_ID, splat_cred_test2);
SPLAT_TEST_INIT(sub, SPLAT_CRED_TEST3_NAME, SPLAT_CRED_TEST3_DESC,
SPLAT_CRED_TEST3_ID, splat_cred_test3);
return sub;
} /* splat_cred_init() */
void
splat_cred_fini(splat_subsystem_t *sub)
{
ASSERT(sub);
SPLAT_TEST_FINI(sub, SPLAT_CRED_TEST3_ID);
SPLAT_TEST_FINI(sub, SPLAT_CRED_TEST2_ID);
SPLAT_TEST_FINI(sub, SPLAT_CRED_TEST1_ID);
kfree(sub);
} /* splat_cred_fini() */
int
splat_cred_id(void)
{
return SPLAT_SUBSYSTEM_CRED;
} /* splat_cred_id() */
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