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-rw-r--r--include/net/cipso_ipv4.h20
-rw-r--r--include/net/netlabel.h14
-rw-r--r--net/ipv4/cipso_ipv4.c41
-rw-r--r--net/netlabel/netlabel_kapi.c43
-rw-r--r--security/selinux/netlabel.c36
5 files changed, 47 insertions, 107 deletions
diff --git a/include/net/cipso_ipv4.h b/include/net/cipso_ipv4.h
index 4f90f5554fa..a6bb94530cf 100644
--- a/include/net/cipso_ipv4.h
+++ b/include/net/cipso_ipv4.h
@@ -203,12 +203,10 @@ static inline int cipso_v4_cache_add(const struct sk_buff *skb,
#ifdef CONFIG_NETLABEL
void cipso_v4_error(struct sk_buff *skb, int error, u32 gateway);
-int cipso_v4_socket_setattr(const struct socket *sock,
- const struct cipso_v4_doi *doi_def,
- const struct netlbl_lsm_secattr *secattr);
+int cipso_v4_sock_setattr(struct sock *sk,
+ const struct cipso_v4_doi *doi_def,
+ const struct netlbl_lsm_secattr *secattr);
int cipso_v4_sock_getattr(struct sock *sk, struct netlbl_lsm_secattr *secattr);
-int cipso_v4_socket_getattr(const struct socket *sock,
- struct netlbl_lsm_secattr *secattr);
int cipso_v4_skbuff_getattr(const struct sk_buff *skb,
struct netlbl_lsm_secattr *secattr);
int cipso_v4_validate(unsigned char **option);
@@ -220,9 +218,9 @@ static inline void cipso_v4_error(struct sk_buff *skb,
return;
}
-static inline int cipso_v4_socket_setattr(const struct socket *sock,
- const struct cipso_v4_doi *doi_def,
- const struct netlbl_lsm_secattr *secattr)
+static inline int cipso_v4_sock_setattr(struct sock *sk,
+ const struct cipso_v4_doi *doi_def,
+ const struct netlbl_lsm_secattr *secattr)
{
return -ENOSYS;
}
@@ -233,12 +231,6 @@ static inline int cipso_v4_sock_getattr(struct sock *sk,
return -ENOSYS;
}
-static inline int cipso_v4_socket_getattr(const struct socket *sock,
- struct netlbl_lsm_secattr *secattr)
-{
- return -ENOSYS;
-}
-
static inline int cipso_v4_skbuff_getattr(const struct sk_buff *skb,
struct netlbl_lsm_secattr *secattr)
{
diff --git a/include/net/netlabel.h b/include/net/netlabel.h
index 83da7e1f0d3..9b7d6f2ac9a 100644
--- a/include/net/netlabel.h
+++ b/include/net/netlabel.h
@@ -332,17 +332,15 @@ static inline int netlbl_secattr_catmap_setrng(
*/
#ifdef CONFIG_NETLABEL
-int netlbl_socket_setattr(const struct socket *sock,
- const struct netlbl_lsm_secattr *secattr);
+int netlbl_sock_setattr(struct sock *sk,
+ const struct netlbl_lsm_secattr *secattr);
int netlbl_sock_getattr(struct sock *sk,
struct netlbl_lsm_secattr *secattr);
-int netlbl_socket_getattr(const struct socket *sock,
- struct netlbl_lsm_secattr *secattr);
int netlbl_skbuff_getattr(const struct sk_buff *skb,
struct netlbl_lsm_secattr *secattr);
void netlbl_skbuff_err(struct sk_buff *skb, int error);
#else
-static inline int netlbl_socket_setattr(const struct socket *sock,
+static inline int netlbl_sock_setattr(struct sock *sk,
const struct netlbl_lsm_secattr *secattr)
{
return -ENOSYS;
@@ -354,12 +352,6 @@ static inline int netlbl_sock_getattr(struct sock *sk,
return -ENOSYS;
}
-static inline int netlbl_socket_getattr(const struct socket *sock,
- struct netlbl_lsm_secattr *secattr)
-{
- return -ENOSYS;
-}
-
static inline int netlbl_skbuff_getattr(const struct sk_buff *skb,
struct netlbl_lsm_secattr *secattr)
{
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index 86a2b52aad3..fc839f9148e 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -1709,22 +1709,22 @@ void cipso_v4_error(struct sk_buff *skb, int error, u32 gateway)
}
/**
- * cipso_v4_socket_setattr - Add a CIPSO option to a socket
- * @sock: the socket
+ * cipso_v4_sock_setattr - Add a CIPSO option to a socket
+ * @sk: the socket
* @doi_def: the CIPSO DOI to use
* @secattr: the specific security attributes of the socket
*
* Description:
* Set the CIPSO option on the given socket using the DOI definition and
* security attributes passed to the function. This function requires
- * exclusive access to @sock->sk, which means it either needs to be in the
- * process of being created or locked via lock_sock(sock->sk). Returns zero on
- * success and negative values on failure.
+ * exclusive access to @sk, which means it either needs to be in the
+ * process of being created or locked. Returns zero on success and negative
+ * values on failure.
*
*/
-int cipso_v4_socket_setattr(const struct socket *sock,
- const struct cipso_v4_doi *doi_def,
- const struct netlbl_lsm_secattr *secattr)
+int cipso_v4_sock_setattr(struct sock *sk,
+ const struct cipso_v4_doi *doi_def,
+ const struct netlbl_lsm_secattr *secattr)
{
int ret_val = -EPERM;
u32 iter;
@@ -1732,7 +1732,6 @@ int cipso_v4_socket_setattr(const struct socket *sock,
u32 buf_len = 0;
u32 opt_len;
struct ip_options *opt = NULL;
- struct sock *sk;
struct inet_sock *sk_inet;
struct inet_connection_sock *sk_conn;
@@ -1740,7 +1739,6 @@ int cipso_v4_socket_setattr(const struct socket *sock,
* defined yet but it is not a problem as the only users of these
* "lite" PF_INET sockets are functions which do an accept() call
* afterwards so we will label the socket as part of the accept(). */
- sk = sock->sk;
if (sk == NULL)
return 0;
@@ -1892,29 +1890,6 @@ int cipso_v4_sock_getattr(struct sock *sk, struct netlbl_lsm_secattr *secattr)
}
/**
- * cipso_v4_socket_getattr - Get the security attributes from a socket
- * @sock: the socket
- * @secattr: the security attributes
- *
- * Description:
- * Query @sock to see if there is a CIPSO option attached to the socket and if
- * there is return the CIPSO security attributes in @secattr. Returns zero on
- * success and negative values on failure.
- *
- */
-int cipso_v4_socket_getattr(const struct socket *sock,
- struct netlbl_lsm_secattr *secattr)
-{
- int ret_val;
-
- lock_sock(sock->sk);
- ret_val = cipso_v4_sock_getattr(sock->sk, secattr);
- release_sock(sock->sk);
-
- return ret_val;
-}
-
-/**
* cipso_v4_skbuff_getattr - Get the security attributes from the CIPSO option
* @skb: the packet
* @secattr: the security attributes
diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c
index f2535e7f286..b165712aaa7 100644
--- a/net/netlabel/netlabel_kapi.c
+++ b/net/netlabel/netlabel_kapi.c
@@ -246,19 +246,18 @@ int netlbl_secattr_catmap_setrng(struct netlbl_lsm_secattr_catmap *catmap,
/**
* netlbl_socket_setattr - Label a socket using the correct protocol
- * @sock: the socket to label
+ * @sk: the socket to label
* @secattr: the security attributes
*
* Description:
* Attach the correct label to the given socket using the security attributes
- * specified in @secattr. This function requires exclusive access to
- * @sock->sk, which means it either needs to be in the process of being
- * created or locked via lock_sock(sock->sk). Returns zero on success,
- * negative values on failure.
+ * specified in @secattr. This function requires exclusive access to @sk,
+ * which means it either needs to be in the process of being created or locked.
+ * Returns zero on success, negative values on failure.
*
*/
-int netlbl_socket_setattr(const struct socket *sock,
- const struct netlbl_lsm_secattr *secattr)
+int netlbl_sock_setattr(struct sock *sk,
+ const struct netlbl_lsm_secattr *secattr)
{
int ret_val = -ENOENT;
struct netlbl_dom_map *dom_entry;
@@ -269,9 +268,9 @@ int netlbl_socket_setattr(const struct socket *sock,
goto socket_setattr_return;
switch (dom_entry->type) {
case NETLBL_NLTYPE_CIPSOV4:
- ret_val = cipso_v4_socket_setattr(sock,
- dom_entry->type_def.cipsov4,
- secattr);
+ ret_val = cipso_v4_sock_setattr(sk,
+ dom_entry->type_def.cipsov4,
+ secattr);
break;
case NETLBL_NLTYPE_UNLABELED:
ret_val = 0;
@@ -309,30 +308,6 @@ int netlbl_sock_getattr(struct sock *sk, struct netlbl_lsm_secattr *secattr)
}
/**
- * netlbl_socket_getattr - Determine the security attributes of a socket
- * @sock: the socket
- * @secattr: the security attributes
- *
- * Description:
- * Examines the given socket to see any NetLabel style labeling has been
- * applied to the socket, if so it parses the socket label and returns the
- * security attributes in @secattr. Returns zero on success, negative values
- * on failure.
- *
- */
-int netlbl_socket_getattr(const struct socket *sock,
- struct netlbl_lsm_secattr *secattr)
-{
- int ret_val;
-
- ret_val = cipso_v4_socket_getattr(sock, secattr);
- if (ret_val == 0)
- return 0;
-
- return netlbl_unlabel_getattr(secattr);
-}
-
-/**
* netlbl_skbuff_getattr - Determine the security attributes of a packet
* @skb: the packet
* @secattr: the security attributes
diff --git a/security/selinux/netlabel.c b/security/selinux/netlabel.c
index bf8750791dd..e64eca246f1 100644
--- a/security/selinux/netlabel.c
+++ b/security/selinux/netlabel.c
@@ -36,8 +36,8 @@
#include "security.h"
/**
- * selinux_netlbl_socket_setsid - Label a socket using the NetLabel mechanism
- * @sock: the socket to label
+ * selinux_netlbl_sock_setsid - Label a socket using the NetLabel mechanism
+ * @sk: the socket to label
* @sid: the SID to use
*
* Description:
@@ -47,17 +47,17 @@
* this function and rcu_read_unlock() after this function returns.
*
*/
-static int selinux_netlbl_socket_setsid(struct socket *sock, u32 sid)
+static int selinux_netlbl_sock_setsid(struct sock *sk, u32 sid)
{
int rc;
- struct sk_security_struct *sksec = sock->sk->sk_security;
+ struct sk_security_struct *sksec = sk->sk_security;
struct netlbl_lsm_secattr secattr;
rc = security_netlbl_sid_to_secattr(sid, &secattr);
if (rc != 0)
return rc;
- rc = netlbl_socket_setattr(sock, &secattr);
+ rc = netlbl_sock_setattr(sk, &secattr);
if (rc == 0) {
spin_lock_bh(&sksec->nlbl_lock);
sksec->nlbl_state = NLBL_LABELED;
@@ -206,7 +206,7 @@ void selinux_netlbl_sock_graft(struct sock *sk, struct socket *sock)
/* Try to set the NetLabel on the socket to save time later, if we fail
* here we will pick up the pieces in later calls to
* selinux_netlbl_inode_permission(). */
- selinux_netlbl_socket_setsid(sock, sksec->sid);
+ selinux_netlbl_sock_setsid(sk, sksec->sid);
rcu_read_unlock();
}
@@ -223,14 +223,15 @@ void selinux_netlbl_sock_graft(struct sock *sk, struct socket *sock)
int selinux_netlbl_socket_post_create(struct socket *sock)
{
int rc = 0;
+ struct sock *sk = sock->sk;
struct inode_security_struct *isec = SOCK_INODE(sock)->i_security;
- struct sk_security_struct *sksec = sock->sk->sk_security;
+ struct sk_security_struct *sksec = sk->sk_security;
sksec->sclass = isec->sclass;
rcu_read_lock();
if (sksec->nlbl_state == NLBL_REQUIRE)
- rc = selinux_netlbl_socket_setsid(sock, sksec->sid);
+ rc = selinux_netlbl_sock_setsid(sk, sksec->sid);
rcu_read_unlock();
return rc;
@@ -251,14 +252,16 @@ int selinux_netlbl_socket_post_create(struct socket *sock)
int selinux_netlbl_inode_permission(struct inode *inode, int mask)
{
int rc;
- struct sk_security_struct *sksec;
+ struct sock *sk;
struct socket *sock;
+ struct sk_security_struct *sksec;
if (!S_ISSOCK(inode->i_mode) ||
((mask & (MAY_WRITE | MAY_APPEND)) == 0))
return 0;
sock = SOCKET_I(inode);
- sksec = sock->sk->sk_security;
+ sk = sock->sk;
+ sksec = sk->sk_security;
rcu_read_lock();
if (sksec->nlbl_state != NLBL_REQUIRE) {
@@ -266,9 +269,9 @@ int selinux_netlbl_inode_permission(struct inode *inode, int mask)
return 0;
}
local_bh_disable();
- bh_lock_sock_nested(sock->sk);
- rc = selinux_netlbl_socket_setsid(sock, sksec->sid);
- bh_unlock_sock(sock->sk);
+ bh_lock_sock_nested(sk);
+ rc = selinux_netlbl_sock_setsid(sk, sksec->sid);
+ bh_unlock_sock(sk);
local_bh_enable();
rcu_read_unlock();
@@ -345,14 +348,17 @@ int selinux_netlbl_socket_setsockopt(struct socket *sock,
int optname)
{
int rc = 0;
- struct sk_security_struct *sksec = sock->sk->sk_security;
+ struct sock *sk = sock->sk;
+ struct sk_security_struct *sksec = sk->sk_security;
struct netlbl_lsm_secattr secattr;
rcu_read_lock();
if (level == IPPROTO_IP && optname == IP_OPTIONS &&
sksec->nlbl_state == NLBL_LABELED) {
netlbl_secattr_init(&secattr);
- rc = netlbl_socket_getattr(sock, &secattr);
+ lock_sock(sk);
+ rc = netlbl_sock_getattr(sk, &secattr);
+ release_sock(sk);
if (rc == 0 && secattr.flags != NETLBL_SECATTR_NONE)
rc = -EACCES;
netlbl_secattr_destroy(&secattr);