netlabel: Remove unneeded in-kernel API functions

After some discussions with the Smack folks, well just Casey, I now have a
better idea of what Smack wants out of NetLabel in the future so I think it
is now safe to do some API "pruning".  If another LSM comes along that
needs this functionality we can always add it back in, but I don't see any
LSMs on the horizon which might make use of these functions.

Thanks to Rami Rosen who suggested removing netlbl_cfg_cipsov4_del() back
in February 2008.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Reviewed-by: James Morris <jmorris@namei.org>

2 files changed, 23 insertions, 74 deletions

diff --git a/include/net/netlabel.h b/include/net/netlabel.h
index e4d2d6baa983..5303749b7093 100644
--- a/include/net/netlabel.h
+++ b/include/net/netlabel.h
@@ -352,12 +352,9 @@ static inline void netlbl_secattr_free(struct netlbl_lsm_secattr *secattr)
 int netlbl_cfg_map_del(const char *domain, struct netlbl_audit *audit_info);
 int netlbl_cfg_unlbl_add_map(const char *domain,
                              struct netlbl_audit *audit_info);
-int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def,
-                           struct netlbl_audit *audit_info);
 int netlbl_cfg_cipsov4_add_map(struct cipso_v4_doi *doi_def,
                                const char *domain,
                                struct netlbl_audit *audit_info);
-int netlbl_cfg_cipsov4_del(u32 doi, struct netlbl_audit *audit_info);
 
 /*
  * LSM security attribute operations
@@ -404,22 +401,12 @@ static inline int netlbl_cfg_unlbl_add_map(const char *domain,
 {
         return -ENOSYS;
 }
-static inline int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def,
-                                         struct netlbl_audit *audit_info)
-{
-        return -ENOSYS;
-}
 static inline int netlbl_cfg_cipsov4_add_map(struct cipso_v4_doi *doi_def,
                                              const char *domain,
                                              struct netlbl_audit *audit_info)
 {
         return -ENOSYS;
 }
-static inline int netlbl_cfg_cipsov4_del(u32 doi,
-                                         struct netlbl_audit *audit_info)
-{
-        return -ENOSYS;
-}
 static inline int netlbl_secattr_catmap_walk(
                                       struct netlbl_lsm_secattr_catmap *catmap,
                                       u32 offset)
diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c
index 39793a1a93aa..6c211fe97782 100644
--- a/net/netlabel/netlabel_kapi.c
+++ b/net/netlabel/netlabel_kapi.c
@@ -82,7 +82,7 @@ int netlbl_cfg_unlbl_add_map(const char *domain,
 
         entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
         if (entry == NULL)
-                goto cfg_unlbl_add_map_failure;
+                return -ENOMEM;
         if (domain != NULL) {
                 entry->domain = kstrdup(domain, GFP_ATOMIC);
                 if (entry->domain == NULL)
@@ -104,49 +104,6 @@ cfg_unlbl_add_map_failure:
 }
 
 /**
- * netlbl_cfg_cipsov4_add - Add a new CIPSOv4 DOI definition
- * @doi_def: the DOI definition
- * @audit_info: NetLabel audit information
- *
- * Description:
- * Add a new CIPSOv4 DOI definition to the NetLabel subsystem.  Returns zero on
- * success, negative values on failure.
- *
- */
-int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def,
-                           struct netlbl_audit *audit_info)
-{
-        int ret_val;
-        const char *type_str;
-        struct audit_buffer *audit_buf;
-
-        ret_val = cipso_v4_doi_add(doi_def);
-
-        audit_buf = netlbl_audit_start_common(AUDIT_MAC_CIPSOV4_ADD,
-                                              audit_info);
-        if (audit_buf != NULL) {
-                switch (doi_def->type) {
-                case CIPSO_V4_MAP_STD:
-                        type_str = "std";
-                        break;
-                case CIPSO_V4_MAP_PASS:
-                        type_str = "pass";
-                        break;
-                default:
-                        type_str = "(unknown)";
-                }
-                audit_log_format(audit_buf,
-                                 " cipso_doi=%u cipso_type=%s res=%u",
-                                 doi_def->doi,
-                                 type_str,
-                                 ret_val == 0 ? 1 : 0);
-                audit_log_end(audit_buf);
-        }
-
-        return ret_val;
-}
-
-/**
  * netlbl_cfg_cipsov4_add_map - Add a new CIPSOv4 DOI definition and mapping
  * @doi_def: the DOI definition
  * @domain: the domain mapping to add
@@ -165,10 +122,12 @@ int netlbl_cfg_cipsov4_add_map(struct cipso_v4_doi *doi_def,
 {
         int ret_val = -ENOMEM;
         struct netlbl_dom_map *entry;
+        const char *type_str;
+        struct audit_buffer *audit_buf;
 
         entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
         if (entry == NULL)
-                goto cfg_cipsov4_add_map_failure;
+                return -ENOMEM;
         if (domain != NULL) {
                 entry->domain = kstrdup(domain, GFP_ATOMIC);
                 if (entry->domain == NULL)
@@ -182,7 +141,7 @@ int netlbl_cfg_cipsov4_add_map(struct cipso_v4_doi *doi_def,
          * domain mapping for it. */
 
         rcu_read_lock();
-        ret_val = netlbl_cfg_cipsov4_add(doi_def, audit_info);
+        ret_val = cipso_v4_doi_add(doi_def);
         if (ret_val != 0)
                 goto cfg_cipsov4_add_map_failure_unlock;
         ret_val = netlbl_domhsh_add(entry, audit_info);
@@ -196,6 +155,24 @@ cfg_cipsov4_add_map_failure_remove_doi:
         cipso_v4_doi_remove(doi_def->doi, audit_info, netlbl_cipsov4_doi_free);
 cfg_cipsov4_add_map_failure_unlock:
         rcu_read_unlock();
+        audit_buf = netlbl_audit_start_common(AUDIT_MAC_CIPSOV4_ADD,
+                                              audit_info);
+        if (audit_buf != NULL) {
+                switch (doi_def->type) {
+                case CIPSO_V4_MAP_STD:
+                        type_str = "std";
+                        break;
+                case CIPSO_V4_MAP_PASS:
+                        type_str = "pass";
+                        break;
+                default:
+                        type_str = "(unknown)";
+                }
+                audit_log_format(audit_buf,
+                                 " cipso_doi=%u cipso_type=%s res=%u",
+                                 doi_def->doi, type_str, ret_val == 0 ? 1 : 0);
+                audit_log_end(audit_buf);
+        }
 cfg_cipsov4_add_map_failure:
         if (entry != NULL)
                 kfree(entry->domain);
@@ -203,21 +180,6 @@ cfg_cipsov4_add_map_failure:
         return ret_val;
 }
 
-/**
- * netlbl_cfg_cipsov4_del - Removean existing CIPSOv4 DOI definition
- * @doi: the CIPSO DOI value
- * @audit_info: NetLabel audit information
- *
- * Description:
- * Removes an existing CIPSOv4 DOI definition from the NetLabel subsystem.
- * Returns zero on success, negative values on failure.
- *
- */
-int netlbl_cfg_cipsov4_del(u32 doi, struct netlbl_audit *audit_info)
-{
-        return cipso_v4_doi_remove(doi, audit_info, netlbl_cipsov4_doi_free);
-}
-
 /*
  * Security Attribute Functions
  */