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-rw-r--r--Documentation/security/SCTP.rst22
-rw-r--r--include/linux/lsm_hook_defs.h2
-rw-r--r--include/linux/lsm_hooks.h5
-rw-r--r--include/linux/security.h7
-rw-r--r--net/sctp/sm_statefuns.c2
-rw-r--r--security/security.c7
-rw-r--r--security/selinux/hooks.c14
7 files changed, 14 insertions, 45 deletions
diff --git a/Documentation/security/SCTP.rst b/Documentation/security/SCTP.rst
index 406cc68b8808..d5fd6ccc3dcb 100644
--- a/Documentation/security/SCTP.rst
+++ b/Documentation/security/SCTP.rst
@@ -15,7 +15,10 @@ For security module support, three SCTP specific hooks have been implemented::
security_sctp_assoc_request()
security_sctp_bind_connect()
security_sctp_sk_clone()
- security_sctp_assoc_established()
+
+Also the following security hook has been utilised::
+
+ security_inet_conn_established()
The usage of these hooks are described below with the SELinux implementation
described in the `SCTP SELinux Support`_ chapter.
@@ -119,12 +122,11 @@ calls **sctp_peeloff**\(3).
@newsk - pointer to new sock structure.
-security_sctp_assoc_established()
+security_inet_conn_established()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Called when a COOKIE ACK is received, and the peer secid will be
-saved into ``@asoc->peer_secid`` for client::
+Called when a COOKIE ACK is received::
- @asoc - pointer to sctp association structure.
+ @sk - pointer to sock structure.
@skb - pointer to skbuff of the COOKIE ACK packet.
@@ -132,7 +134,7 @@ Security Hooks used for Association Establishment
-------------------------------------------------
The following diagram shows the use of ``security_sctp_bind_connect()``,
-``security_sctp_assoc_request()``, ``security_sctp_assoc_established()`` when
+``security_sctp_assoc_request()``, ``security_inet_conn_established()`` when
establishing an association.
::
@@ -170,7 +172,7 @@ establishing an association.
<------------------------------------------- COOKIE ACK
| |
sctp_sf_do_5_1E_ca |
- Call security_sctp_assoc_established() |
+ Call security_inet_conn_established() |
to set the peer label. |
| |
| If SCTP_SOCKET_TCP or peeled off
@@ -196,7 +198,7 @@ hooks with the SELinux specifics expanded below::
security_sctp_assoc_request()
security_sctp_bind_connect()
security_sctp_sk_clone()
- security_sctp_assoc_established()
+ security_inet_conn_established()
security_sctp_assoc_request()
@@ -269,12 +271,12 @@ sockets sid and peer sid to that contained in the ``@asoc sid`` and
@newsk - pointer to new sock structure.
-security_sctp_assoc_established()
+security_inet_conn_established()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Called when a COOKIE ACK is received where it sets the connection's peer sid
to that in ``@skb``::
- @asoc - pointer to sctp association structure.
+ @sk - pointer to sock structure.
@skb - pointer to skbuff of the COOKIE ACK packet.
diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h
index 442a611fa0fb..df8de62f4710 100644
--- a/include/linux/lsm_hook_defs.h
+++ b/include/linux/lsm_hook_defs.h
@@ -335,8 +335,6 @@ LSM_HOOK(int, 0, sctp_bind_connect, struct sock *sk, int optname,
struct sockaddr *address, int addrlen)
LSM_HOOK(void, LSM_RET_VOID, sctp_sk_clone, struct sctp_association *asoc,
struct sock *sk, struct sock *newsk)
-LSM_HOOK(void, LSM_RET_VOID, sctp_assoc_established, struct sctp_association *asoc,
- struct sk_buff *skb)
#endif /* CONFIG_SECURITY_NETWORK */
#ifdef CONFIG_SECURITY_INFINIBAND
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index d6823214d5c1..d45b6f6e27fd 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -1050,11 +1050,6 @@
* @asoc pointer to current sctp association structure.
* @sk pointer to current sock structure.
* @newsk pointer to new sock structure.
- * @sctp_assoc_established:
- * Passes the @asoc and @chunk->skb of the association COOKIE_ACK packet
- * to the security module.
- * @asoc pointer to sctp association structure.
- * @skb pointer to skbuff of association packet.
*
* Security hooks for Infiniband
*
diff --git a/include/linux/security.h b/include/linux/security.h
index 06eac4e61a13..bbf44a466832 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -1430,8 +1430,6 @@ int security_sctp_bind_connect(struct sock *sk, int optname,
struct sockaddr *address, int addrlen);
void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk,
struct sock *newsk);
-void security_sctp_assoc_established(struct sctp_association *asoc,
- struct sk_buff *skb);
#else /* CONFIG_SECURITY_NETWORK */
static inline int security_unix_stream_connect(struct sock *sock,
@@ -1651,11 +1649,6 @@ static inline void security_sctp_sk_clone(struct sctp_association *asoc,
struct sock *newsk)
{
}
-
-static inline void security_sctp_assoc_established(struct sctp_association *asoc,
- struct sk_buff *skb)
-{
-}
#endif /* CONFIG_SECURITY_NETWORK */
#ifdef CONFIG_SECURITY_INFINIBAND
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 39ba82ee87ce..354c1c4de19b 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -946,7 +946,7 @@ enum sctp_disposition sctp_sf_do_5_1E_ca(struct net *net,
sctp_add_cmd_sf(commands, SCTP_CMD_INIT_COUNTER_RESET, SCTP_NULL());
/* Set peer label for connection. */
- security_sctp_assoc_established((struct sctp_association *)asoc, chunk->skb);
+ security_inet_conn_established(ep->base.sk, chunk->skb);
/* RFC 2960 5.1 Normal Establishment of an Association
*
diff --git a/security/security.c b/security/security.c
index 779a9edea0a0..c88167a414b4 100644
--- a/security/security.c
+++ b/security/security.c
@@ -2388,13 +2388,6 @@ void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk,
}
EXPORT_SYMBOL(security_sctp_sk_clone);
-void security_sctp_assoc_established(struct sctp_association *asoc,
- struct sk_buff *skb)
-{
- call_void_hook(sctp_assoc_established, asoc, skb);
-}
-EXPORT_SYMBOL(security_sctp_assoc_established);
-
#endif /* CONFIG_SECURITY_NETWORK */
#ifdef CONFIG_SECURITY_INFINIBAND
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 5e5215fe2e83..62d30c0a30c2 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -5502,8 +5502,7 @@ static void selinux_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk
if (!selinux_policycap_extsockclass())
return selinux_sk_clone_security(sk, newsk);
- if (asoc->secid != SECSID_WILD)
- newsksec->sid = asoc->secid;
+ newsksec->sid = asoc->secid;
newsksec->peer_sid = asoc->peer_secid;
newsksec->sclass = sksec->sclass;
selinux_netlbl_sctp_sk_clone(sk, newsk);
@@ -5559,16 +5558,6 @@ static void selinux_inet_conn_established(struct sock *sk, struct sk_buff *skb)
selinux_skb_peerlbl_sid(skb, family, &sksec->peer_sid);
}
-static void selinux_sctp_assoc_established(struct sctp_association *asoc,
- struct sk_buff *skb)
-{
- struct sk_security_struct *sksec = asoc->base.sk->sk_security;
-
- selinux_inet_conn_established(asoc->base.sk, skb);
- asoc->peer_secid = sksec->peer_sid;
- asoc->secid = SECSID_WILD;
-}
-
static int selinux_secmark_relabel_packet(u32 sid)
{
const struct task_security_struct *__tsec;
@@ -7239,7 +7228,6 @@ static struct security_hook_list selinux_hooks[] __lsm_ro_after_init = {
LSM_HOOK_INIT(sctp_assoc_request, selinux_sctp_assoc_request),
LSM_HOOK_INIT(sctp_sk_clone, selinux_sctp_sk_clone),
LSM_HOOK_INIT(sctp_bind_connect, selinux_sctp_bind_connect),
- LSM_HOOK_INIT(sctp_assoc_established, selinux_sctp_assoc_established),
LSM_HOOK_INIT(inet_conn_request, selinux_inet_conn_request),
LSM_HOOK_INIT(inet_csk_clone, selinux_inet_csk_clone),
LSM_HOOK_INIT(inet_conn_established, selinux_inet_conn_established),
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.