From: Casey Schaufler <casey@schaufler-ca.com>
To: jmorris@namei.org, linux-security-module@vger.kernel.org,
selinux@vger.kernel.org
Cc: keescook@chromium.org, john.johansen@canonical.com,
penguin-kernel@i-love.sakura.ne.jp, paul@paul-moore.com
Subject: [PATCH 91/97] Netlabel: Return the labeling type on socket
Date: Thu, 28 Feb 2019 14:43:50 -0800 [thread overview]
Message-ID: <20190228224356.2608-22-casey@schaufler-ca.com> (raw)
In-Reply-To: <20190228224356.2608-1-casey@schaufler-ca.com>
Change netlbl_req_setattr() to return the labeling
type of the domain. This allows the labeling types to
be compared when two LSMs want to determine how a socket
should be used.
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
---
net/netlabel/netlabel_kapi.c | 18 +++++++++++-------
security/selinux/netlabel.c | 2 ++
security/smack/smack_lsm.c | 2 ++
3 files changed, 15 insertions(+), 7 deletions(-)
diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c
index 1d362a38dd05..5c5825171281 100644
--- a/net/netlabel/netlabel_kapi.c
+++ b/net/netlabel/netlabel_kapi.c
@@ -1185,12 +1185,14 @@ int netlbl_conn_setattr(struct sock *sk,
*
* Description:
* Attach the correct label to the given socket using the security attributes
- * specified in @secattr. Returns zero on success, negative values on failure.
+ * specified in @secattr. Returns the NLTYPE on success, negative values on
+ * failure.
*
*/
int netlbl_req_setattr(struct request_sock *req,
const struct netlbl_lsm_secattr *secattr)
{
+ int rc;
int ret_val;
struct netlbl_dommap_def *entry;
struct inet_request_sock *ireq = inet_rsk(req);
@@ -1204,14 +1206,15 @@ int netlbl_req_setattr(struct request_sock *req,
ret_val = -ENOENT;
goto req_setattr_return;
}
+ ret_val = entry->type;
switch (entry->type) {
case NETLBL_NLTYPE_CIPSOV4:
- ret_val = cipso_v4_req_setattr(req,
- entry->cipso, secattr);
+ rc = cipso_v4_req_setattr(req, entry->cipso, secattr);
+ if (rc < 0)
+ ret_val = rc;
break;
case NETLBL_NLTYPE_UNLABELED:
netlbl_req_delattr(req);
- ret_val = 0;
break;
default:
ret_val = -ENOENT;
@@ -1225,14 +1228,15 @@ int netlbl_req_setattr(struct request_sock *req,
ret_val = -ENOENT;
goto req_setattr_return;
}
+ ret_val = entry->type;
switch (entry->type) {
case NETLBL_NLTYPE_CALIPSO:
- ret_val = calipso_req_setattr(req,
- entry->calipso, secattr);
+ rc = calipso_req_setattr(req, entry->calipso, secattr);
+ if (rc < 0)
+ ret_val = rc;
break;
case NETLBL_NLTYPE_UNLABELED:
netlbl_req_delattr(req);
- ret_val = 0;
break;
default:
ret_val = -ENOENT;
diff --git a/security/selinux/netlabel.c b/security/selinux/netlabel.c
index b6eede4406bd..9fbf22a3ca57 100644
--- a/security/selinux/netlabel.c
+++ b/security/selinux/netlabel.c
@@ -358,6 +358,8 @@ int selinux_netlbl_inet_conn_request(struct request_sock *req, u16 family)
if (rc != 0)
goto inet_conn_request_return;
rc = netlbl_req_setattr(req, &secattr);
+ if (rc > 0)
+ rc = 0;
inet_conn_request_return:
netlbl_secattr_destroy(&secattr);
return rc;
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 20eed64e91de..086a3f696baa 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -4060,6 +4060,8 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
rc = netlbl_req_setattr(req, &skp->smk_netlabel);
else
rc = netlbl_req_setattr(req, &smack_net_ambient->smk_netlabel);
+ if (rc >= 0)
+ return 0;
return rc;
}
--
2.17.0
next prev parent reply other threads:[~2019-02-28 22:44 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-28 22:43 [PATCH 00/97] LSM: Complete module stacking Casey Schaufler
2019-02-28 22:43 ` [PATCH 71/97] LSM: Add secmark refcounting to call_one list Casey Schaufler
2019-02-28 22:43 ` [PATCH 72/97] LSM: Add secmark refcounting to call_one list - part 2 Casey Schaufler
2019-02-28 22:43 ` [PATCH 73/97] LSM: refactor security_setprocattr Casey Schaufler
2019-02-28 22:43 ` [PATCH 74/97] Smack: Detect if secmarks can be safely used Casey Schaufler
2019-02-28 22:43 ` [PATCH 75/97] LSM: Support multiple LSMs using inode_init_security Casey Schaufler
2019-02-28 22:43 ` [PATCH 76/97] LSM: Use full security context in security_inode_setsecctx Casey Schaufler
2019-02-28 22:43 ` [PATCH 77/97] LSM: Correct handling of ENOSYS in inode_setxattr Casey Schaufler
2019-02-28 22:43 ` [PATCH 78/97] LSM: Infrastructure security blobs for mount options Casey Schaufler
2019-02-28 22:43 ` [PATCH 79/97] LSM: Fix for security_init_inode_security Casey Schaufler
2019-02-28 22:43 ` [PATCH 80/97] Smack: Advertise the secid to netlabel Casey Schaufler
2019-02-28 22:43 ` [PATCH 81/97] LSM: Change error detection for UDP peer security Casey Schaufler
2019-02-28 22:43 ` [PATCH 82/97] Smack: Fix setting of the CIPSO MLS_CAT flags Casey Schaufler
2019-02-28 22:43 ` [PATCH 83/97] Smack: Set netlabel flags properly on new label import Casey Schaufler
2019-02-28 22:43 ` [PATCH 84/97] Netlabel: Add a secattr comparison API function Casey Schaufler
2019-02-28 22:43 ` [PATCH 85/97] Smack: Let netlabel do the work on the ambient domain Casey Schaufler
2019-02-28 22:43 ` [PATCH 86/97] Smack: Don't set the socket label on each send Casey Schaufler
2019-02-28 22:43 ` [PATCH 87/97] Smack: Let netlabel do the work on connections Casey Schaufler
2019-02-28 22:43 ` [PATCH 88/97] Netlabel: Return the labeling type on socket Casey Schaufler
2019-02-28 22:43 ` [PATCH 89/97] " Casey Schaufler
2019-02-28 22:43 ` [PATCH 90/97] " Casey Schaufler
2019-02-28 22:43 ` Casey Schaufler [this message]
2019-02-28 22:43 ` [PATCH 92/97] LSM: Remember the NLTYPE of netlabel sockets Casey Schaufler
2019-02-28 22:43 ` [PATCH 93/97] Smack: Use the NLTYPE on output Casey Schaufler
2019-02-28 22:43 ` [PATCH 94/97] LSM: Hook for netlabel reconciliation Casey Schaufler
2019-02-28 22:43 ` [PATCH 95/97] LSM: Avoid network conflicts in SELinux and Smack Casey Schaufler
2019-02-28 22:43 ` [PATCH 96/97] LSM: Apply Netlabel consitancy checks on send and connect Casey Schaufler
2019-02-28 22:43 ` [PATCH 97/97] Smack: Remove the exclusive bit Casey Schaufler
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