From: paul.moore@hp.com
To: netdev@vger.kernel.org, selinux@tycho.nsa.gov
Cc: jmorris@namei.org, Paul Moore <paul.moore@hp.com>
Subject: [PATCH 05/13] NetLabel: check for a CIPSOv4 option before we do call into the CIPSOv4 layer
Date: Fri, 17 Nov 2006 17:38:47 -0500 [thread overview]
Message-ID: <20061117224333.829365000@hp.com> (raw)
In-Reply-To: 20061117223842.399078000@hp.com
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From: Paul Moore <paul.moore@hp.com>
Right now the NetLabel code always jumps into the CIPSOv4 layer to determine if
a CIPSO IP option is present. However, we can do this check directly in the
NetLabel code by making use of the CIPSO_V4_OPTEXIST() macro which should save
us a function call in the common case of not having a CIPSOv4 option present.
Signed-off-by: Paul Moore <paul.moore@hp.com>
---
net/ipv4/cipso_ipv4.c | 2 --
net/netlabel/netlabel_kapi.c | 6 ++----
2 files changed, 2 insertions(+), 6 deletions(-)
Index: net-2.6.20_netlabel-base-work/net/ipv4/cipso_ipv4.c
===================================================================
--- net-2.6.20_netlabel-base-work.orig/net/ipv4/cipso_ipv4.c
+++ net-2.6.20_netlabel-base-work/net/ipv4/cipso_ipv4.c
@@ -1436,8 +1436,6 @@ int cipso_v4_skbuff_getattr(const struct
u32 doi;
struct cipso_v4_doi *doi_def;
- if (!CIPSO_V4_OPTEXIST(skb))
- return -ENOMSG;
cipso_ptr = CIPSO_V4_OPTPTR(skb);
if (cipso_v4_cache_check(cipso_ptr, cipso_ptr[1], secattr) == 0)
return 0;
Index: net-2.6.20_netlabel-base-work/net/netlabel/netlabel_kapi.c
===================================================================
--- net-2.6.20_netlabel-base-work.orig/net/netlabel/netlabel_kapi.c
+++ net-2.6.20_netlabel-base-work/net/netlabel/netlabel_kapi.c
@@ -149,10 +149,8 @@ int netlbl_socket_getattr(const struct s
int netlbl_skbuff_getattr(const struct sk_buff *skb,
struct netlbl_lsm_secattr *secattr)
{
- int ret_val;
-
- ret_val = cipso_v4_skbuff_getattr(skb, secattr);
- if (ret_val == 0)
+ if (CIPSO_V4_OPTEXIST(skb) &&
+ cipso_v4_skbuff_getattr(skb, secattr) == 0)
return 0;
return netlbl_unlabel_getattr(secattr);
--
paul moore
linux security @ hp
next prev parent reply other threads:[~2006-11-17 22:43 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-17 22:38 [PATCH 00/13] NetLabel cleanups for 2.6.20 paul.moore
2006-11-17 22:38 ` [PATCH 01/13] NetLabel: use gfp_t instead of int where it makes sense paul.moore
2006-11-17 22:38 ` [PATCH 02/13] NetLabel: convert the unlabeled accept flag to use RCU paul.moore
2006-11-17 22:38 ` [PATCH 03/13] NetLabel: change netlbl_secattr_init() to return void paul.moore
2006-11-17 22:38 ` [PATCH 04/13] NetLabel: make netlbl_lsm_secattr struct easier/quicker to understand paul.moore
2006-11-17 22:38 ` paul.moore [this message]
2006-11-17 22:38 ` [PATCH 06/13] NetLabel: add tag verification when adding new CIPSOv4 DOI definitions paul.moore
2006-11-17 22:38 ` [PATCH 07/13] NetLabel: fixup the handling of CIPSOv4 tags to allow for multiple tag types paul.moore
2006-11-17 22:38 ` [PATCH 08/13] NetLabel: return the correct error for translated CIPSOv4 tags paul.moore
2006-11-17 22:38 ` [PATCH 09/13] NetLabel: use the correct CIPSOv4 MLS label limits paul.moore
2006-11-17 22:38 ` [PATCH 10/13] NetLabel: use cipso_v4_doi_search() for local CIPSOv4 functions paul.moore
2006-11-24 1:24 ` Eric Paris
2006-11-24 5:53 ` Al Viro
2006-11-17 22:38 ` [PATCH 11/13] NetLabel: SELinux cleanups paul.moore
2006-11-17 22:38 ` [PATCH 12/13] SELinux: peer secid consolidation for external network labeling paul.moore
2006-11-17 22:38 ` [PATCH 13/13] NetLabel: honor the audit_enabled flag paul.moore
2006-11-18 4:12 ` [PATCH 00/13] NetLabel cleanups for 2.6.20 [GIT] James Morris
2006-11-18 16:10 ` Paul Moore
2006-11-19 3:19 ` James Morris
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