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authorEric Paris <eparis@redhat.com>2010-04-20 10:29:42 -0400
committerJames Morris <jmorris@namei.org>2010-04-21 08:58:49 +1000
commita200005038955057063fc8ea82129ebc785df41c (patch)
tree712fdedac2d15290cdbe7b8adc02cce844fde9f0 /security/selinux/ss
parent6f262d8e1acb7b1605b811700326163fa707d355 (diff)
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SELinux: return error codes on policy load failure
policy load failure always return EINVAL even if the failure was for some other reason (usually ENOMEM). This patch passes error codes back up the stack where they will make their way to userspace. This might help in debugging future problems with policy load. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/selinux/ss')
-rw-r--r--security/selinux/ss/services.c37
1 files changed, 22 insertions, 15 deletions
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 0b44f5a2b7b..1de60ce90d9 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -1760,22 +1760,28 @@ int security_load_policy(void *data, size_t len)
if (!ss_initialized) {
avtab_cache_init();
- if (policydb_read(&policydb, fp)) {
+ rc = policydb_read(&policydb, fp);
+ if (rc) {
avtab_cache_destroy();
- return -EINVAL;
+ return rc;
}
- if (selinux_set_mapping(&policydb, secclass_map,
- &current_mapping,
- &current_mapping_size)) {
+
+ rc = selinux_set_mapping(&policydb, secclass_map,
+ &current_mapping,
+ &current_mapping_size);
+ if (rc) {
policydb_destroy(&policydb);
avtab_cache_destroy();
- return -EINVAL;
+ return rc;
}
- if (policydb_load_isids(&policydb, &sidtab)) {
+
+ rc = policydb_load_isids(&policydb, &sidtab);
+ if (rc) {
policydb_destroy(&policydb);
avtab_cache_destroy();
- return -EINVAL;
+ return rc;
}
+
security_load_policycaps();
ss_initialized = 1;
seqno = ++latest_granting;
@@ -1791,8 +1797,9 @@ int security_load_policy(void *data, size_t len)
sidtab_hash_eval(&sidtab, "sids");
#endif
- if (policydb_read(&newpolicydb, fp))
- return -EINVAL;
+ rc = policydb_read(&newpolicydb, fp);
+ if (rc)
+ return rc;
/* If switching between different policy types, log MLS status */
if (policydb.mls_enabled && !newpolicydb.mls_enabled)
@@ -1807,8 +1814,8 @@ int security_load_policy(void *data, size_t len)
return rc;
}
- if (selinux_set_mapping(&newpolicydb, secclass_map,
- &map, &map_size))
+ rc = selinux_set_mapping(&newpolicydb, secclass_map, &map, &map_size);
+ if (rc)
goto err;
rc = security_preserve_bools(&newpolicydb);
@@ -1819,10 +1826,10 @@ int security_load_policy(void *data, size_t len)
/* Clone the SID table. */
sidtab_shutdown(&sidtab);
- if (sidtab_map(&sidtab, clone_sid, &newsidtab)) {
- rc = -ENOMEM;
+
+ rc = sidtab_map(&sidtab, clone_sid, &newsidtab);
+ if (rc)
goto err;
- }
/*
* Convert the internal representations of contexts