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authorPaul Moore <paul.moore@hp.com>2008-10-10 10:16:34 -0400
committerPaul Moore <paul.moore@hp.com>2008-10-10 10:16:34 -0400
commitd91d40799165b0c84c97e7c71fb8039494ff07dc (patch)
tree5394e5d167ec1074f5f52da02e5406f5e183c080 /net/netlabel
parent15c45f7b2e81655f6eb500ec949c8bd70a04325a (diff)
downloadlinux-stericsson-d91d40799165b0c84c97e7c71fb8039494ff07dc.tar.gz
netlabel: Add configuration support for local labeling
Add the necessary NetLabel support for the new CIPSO mapping, CIPSO_V4_MAP_LOCAL, which allows full LSM label/context support. Signed-off-by: Paul Moore <paul.moore@hp.com> Reviewed-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'net/netlabel')
-rw-r--r--net/netlabel/netlabel_cipso_v4.c41
-rw-r--r--net/netlabel/netlabel_cipso_v4.h6
-rw-r--r--net/netlabel/netlabel_kapi.c3
3 files changed, 48 insertions, 2 deletions
diff --git a/net/netlabel/netlabel_cipso_v4.c b/net/netlabel/netlabel_cipso_v4.c
index db83a67cbc75..fff32b70efa9 100644
--- a/net/netlabel/netlabel_cipso_v4.c
+++ b/net/netlabel/netlabel_cipso_v4.c
@@ -365,6 +365,43 @@ add_pass_failure:
}
/**
+ * netlbl_cipsov4_add_local - Adds a CIPSO V4 DOI definition
+ * @info: the Generic NETLINK info block
+ *
+ * Description:
+ * Create a new CIPSO_V4_MAP_LOCAL DOI definition based on the given ADD
+ * message and add it to the CIPSO V4 engine. Return zero on success and
+ * non-zero on error.
+ *
+ */
+static int netlbl_cipsov4_add_local(struct genl_info *info)
+{
+ int ret_val;
+ struct cipso_v4_doi *doi_def = NULL;
+
+ if (!info->attrs[NLBL_CIPSOV4_A_TAGLST])
+ return -EINVAL;
+
+ doi_def = kmalloc(sizeof(*doi_def), GFP_KERNEL);
+ if (doi_def == NULL)
+ return -ENOMEM;
+ doi_def->type = CIPSO_V4_MAP_LOCAL;
+
+ ret_val = netlbl_cipsov4_add_common(info, doi_def);
+ if (ret_val != 0)
+ goto add_local_failure;
+
+ ret_val = cipso_v4_doi_add(doi_def);
+ if (ret_val != 0)
+ goto add_local_failure;
+ return 0;
+
+add_local_failure:
+ cipso_v4_doi_free(doi_def);
+ return ret_val;
+}
+
+/**
* netlbl_cipsov4_add - Handle an ADD message
* @skb: the NETLINK buffer
* @info: the Generic NETLINK info block
@@ -401,6 +438,10 @@ static int netlbl_cipsov4_add(struct sk_buff *skb, struct genl_info *info)
type_str = "pass";
ret_val = netlbl_cipsov4_add_pass(info);
break;
+ case CIPSO_V4_MAP_LOCAL:
+ type_str = "local";
+ ret_val = netlbl_cipsov4_add_local(info);
+ break;
}
if (ret_val == 0)
atomic_inc(&netlabel_mgmt_protocount);
diff --git a/net/netlabel/netlabel_cipso_v4.h b/net/netlabel/netlabel_cipso_v4.h
index fb3957f1d69a..c8a4079261f0 100644
--- a/net/netlabel/netlabel_cipso_v4.h
+++ b/net/netlabel/netlabel_cipso_v4.h
@@ -50,7 +50,8 @@
* NLBL_CIPSOV4_A_MLSLVLLST
* NLBL_CIPSOV4_A_MLSCATLST
*
- * If using CIPSO_V4_MAP_PASS no additional attributes are required.
+ * If using CIPSO_V4_MAP_PASS or CIPSO_V4_MAP_LOCAL no additional attributes
+ * are required.
*
* o REMOVE:
* Sent by an application to remove a specific DOI mapping table from the
@@ -81,7 +82,8 @@
* NLBL_CIPSOV4_A_MLSLVLLST
* NLBL_CIPSOV4_A_MLSCATLST
*
- * If using CIPSO_V4_MAP_PASS no additional attributes are required.
+ * If using CIPSO_V4_MAP_PASS or CIPSO_V4_MAP_LOCAL no additional attributes
+ * are required.
*
* o LISTALL:
* This message is sent by an application to list the valid DOIs on the
diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c
index 8435b15c3f7d..b32eceb3ab0d 100644
--- a/net/netlabel/netlabel_kapi.c
+++ b/net/netlabel/netlabel_kapi.c
@@ -163,6 +163,9 @@ cfg_cipsov4_add_map_return:
case CIPSO_V4_MAP_PASS:
type_str = "pass";
break;
+ case CIPSO_V4_MAP_LOCAL:
+ type_str = "local";
+ break;
default:
type_str = "(unknown)";
}