security: Add support for SCTP security hooks
The SCTP security hooks are explained in:
Documentation/security/LSM-sctp.rst
Signed-off-by: Richard Haines <richard_c_haines@btinternet.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index 7161d8e..84c0b92 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -906,6 +906,33 @@
* associated with the TUN device's security structure.
* @security pointer to the TUN devices's security structure.
*
+ * Security hooks for SCTP
+ *
+ * @sctp_assoc_request:
+ * Passes the @ep and @chunk->skb of the association INIT packet to
+ * the security module.
+ * @ep pointer to sctp endpoint structure.
+ * @skb pointer to skbuff of association packet.
+ * Return 0 on success, error on failure.
+ * @sctp_bind_connect:
+ * Validiate permissions required for each address associated with sock
+ * @sk. Depending on @optname, the addresses will be treated as either
+ * for a connect or bind service. The @addrlen is calculated on each
+ * ipv4 and ipv6 address using sizeof(struct sockaddr_in) or
+ * sizeof(struct sockaddr_in6).
+ * @sk pointer to sock structure.
+ * @optname name of the option to validate.
+ * @address list containing one or more ipv4/ipv6 addresses.
+ * @addrlen total length of address(s).
+ * Return 0 on success, error on failure.
+ * @sctp_sk_clone:
+ * Called whenever a new socket is created by accept(2) (i.e. a TCP
+ * style socket) or when a socket is 'peeled off' e.g userspace
+ * calls sctp_peeloff(3).
+ * @ep pointer to current sctp endpoint structure.
+ * @sk pointer to current sock structure.
+ * @sk pointer to new sock structure.
+ *
* Security hooks for Infiniband
*
* @ib_pkey_access:
@@ -1665,6 +1692,12 @@
int (*tun_dev_attach_queue)(void *security);
int (*tun_dev_attach)(struct sock *sk, void *security);
int (*tun_dev_open)(void *security);
+ int (*sctp_assoc_request)(struct sctp_endpoint *ep,
+ struct sk_buff *skb);
+ int (*sctp_bind_connect)(struct sock *sk, int optname,
+ struct sockaddr *address, int addrlen);
+ void (*sctp_sk_clone)(struct sctp_endpoint *ep, struct sock *sk,
+ struct sock *newsk);
#endif /* CONFIG_SECURITY_NETWORK */
#ifdef CONFIG_SECURITY_INFINIBAND
@@ -1914,6 +1947,9 @@
struct list_head tun_dev_attach_queue;
struct list_head tun_dev_attach;
struct list_head tun_dev_open;
+ struct list_head sctp_assoc_request;
+ struct list_head sctp_bind_connect;
+ struct list_head sctp_sk_clone;
#endif /* CONFIG_SECURITY_NETWORK */
#ifdef CONFIG_SECURITY_INFINIBAND
struct list_head ib_pkey_access;