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c081d53f97
This patch is to move secid and peer_secid from endpoint to association,
and pass asoc to sctp_assoc_request and sctp_sk_clone instead of ep. As
ep is the local endpoint and asoc represents a connection, and in SCTP
one sk/ep could have multiple asoc/connection, saving secid/peer_secid
for new asoc will overwrite the old asoc's.
Note that since asoc can be passed as NULL, security_sctp_assoc_request()
is moved to the place right after the new_asoc is created in
sctp_sf_do_5_1B_init() and sctp_sf_do_unexpected_init().
v1->v2:
- fix the description of selinux_netlbl_skbuff_setsid(), as Jakub noticed.
- fix the annotation in selinux_sctp_assoc_request(), as Richard Noticed.
Fixes: 72e89f5008 ("security: Add support for SCTP security hooks")
Reported-by: Prashanth Prahlad <pprahlad@redhat.com>
Reviewed-by: Richard Haines <richard_c_haines@btinternet.com>
Tested-by: Richard Haines <richard_c_haines@btinternet.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
150 lines
3.6 KiB
C
150 lines
3.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* SELinux interface to the NetLabel subsystem
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*
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* Author: Paul Moore <paul@paul-moore.com>
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*/
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/*
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* (c) Copyright Hewlett-Packard Development Company, L.P., 2006
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*/
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#ifndef _SELINUX_NETLABEL_H_
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#define _SELINUX_NETLABEL_H_
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#include <linux/types.h>
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#include <linux/fs.h>
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#include <linux/net.h>
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#include <linux/skbuff.h>
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#include <net/sock.h>
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#include <net/request_sock.h>
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#include <net/sctp/structs.h>
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#include "avc.h"
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#include "objsec.h"
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#ifdef CONFIG_NETLABEL
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void selinux_netlbl_cache_invalidate(void);
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void selinux_netlbl_err(struct sk_buff *skb, u16 family, int error,
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int gateway);
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void selinux_netlbl_sk_security_free(struct sk_security_struct *sksec);
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void selinux_netlbl_sk_security_reset(struct sk_security_struct *sksec);
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int selinux_netlbl_skbuff_getsid(struct sk_buff *skb,
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u16 family,
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u32 *type,
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u32 *sid);
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int selinux_netlbl_skbuff_setsid(struct sk_buff *skb,
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u16 family,
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u32 sid);
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int selinux_netlbl_sctp_assoc_request(struct sctp_association *asoc,
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struct sk_buff *skb);
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int selinux_netlbl_inet_conn_request(struct request_sock *req, u16 family);
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void selinux_netlbl_inet_csk_clone(struct sock *sk, u16 family);
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void selinux_netlbl_sctp_sk_clone(struct sock *sk, struct sock *newsk);
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int selinux_netlbl_socket_post_create(struct sock *sk, u16 family);
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int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
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struct sk_buff *skb,
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u16 family,
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struct common_audit_data *ad);
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int selinux_netlbl_socket_setsockopt(struct socket *sock,
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int level,
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int optname);
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int selinux_netlbl_socket_connect(struct sock *sk, struct sockaddr *addr);
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int selinux_netlbl_socket_connect_locked(struct sock *sk,
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struct sockaddr *addr);
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#else
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static inline void selinux_netlbl_cache_invalidate(void)
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{
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return;
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}
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static inline void selinux_netlbl_err(struct sk_buff *skb,
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u16 family,
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int error,
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int gateway)
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{
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return;
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}
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static inline void selinux_netlbl_sk_security_free(
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struct sk_security_struct *sksec)
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{
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return;
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}
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static inline void selinux_netlbl_sk_security_reset(
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struct sk_security_struct *sksec)
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{
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return;
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}
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static inline int selinux_netlbl_skbuff_getsid(struct sk_buff *skb,
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u16 family,
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u32 *type,
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u32 *sid)
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{
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*type = NETLBL_NLTYPE_NONE;
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*sid = SECSID_NULL;
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return 0;
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}
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static inline int selinux_netlbl_skbuff_setsid(struct sk_buff *skb,
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u16 family,
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u32 sid)
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{
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return 0;
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}
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static inline int selinux_netlbl_sctp_assoc_request(struct sctp_association *asoc,
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struct sk_buff *skb)
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{
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return 0;
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}
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static inline int selinux_netlbl_inet_conn_request(struct request_sock *req,
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u16 family)
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{
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return 0;
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}
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static inline void selinux_netlbl_inet_csk_clone(struct sock *sk, u16 family)
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{
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return;
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}
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static inline void selinux_netlbl_sctp_sk_clone(struct sock *sk,
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struct sock *newsk)
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{
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return;
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}
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static inline int selinux_netlbl_socket_post_create(struct sock *sk,
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u16 family)
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{
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return 0;
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}
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static inline int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
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struct sk_buff *skb,
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u16 family,
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struct common_audit_data *ad)
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{
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return 0;
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}
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static inline int selinux_netlbl_socket_setsockopt(struct socket *sock,
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int level,
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int optname)
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{
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return 0;
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}
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static inline int selinux_netlbl_socket_connect(struct sock *sk,
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struct sockaddr *addr)
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{
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return 0;
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}
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static inline int selinux_netlbl_socket_connect_locked(struct sock *sk,
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struct sockaddr *addr)
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{
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return 0;
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}
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#endif /* CONFIG_NETLABEL */
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#endif
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