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    Subject[PATCH 3/3] selinux: provide unix_stream_socketpair callback
    Date
    Make sure to implement the new unix_stream_socketpair callback so the
    SO_PEERSEC call on socketpair(2)s will return correct information.

    Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
    ---
    security/selinux/hooks.c | 14 ++++++++++++++
    1 file changed, 14 insertions(+)

    diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
    index 4cafe6a19167..828881d9a41d 100644
    --- a/security/selinux/hooks.c
    +++ b/security/selinux/hooks.c
    @@ -4905,6 +4905,18 @@ static int selinux_socket_unix_stream_connect(struct sock *sock,
    return 0;
    }

    +static int selinux_socket_unix_stream_socketpair(struct sock *socka,
    + struct sock *sockb)
    +{
    + struct sk_security_struct *sksec_a = socka->sk_security;
    + struct sk_security_struct *sksec_b = sockb->sk_security;
    +
    + sksec_a->peer_sid = sksec_b->sid;
    + sksec_b->peer_sid = sksec_a->sid;
    +
    + return 0;
    +}
    +
    static int selinux_socket_unix_may_send(struct socket *sock,
    struct socket *other)
    {
    @@ -6995,6 +7007,8 @@ static struct security_hook_list selinux_hooks[] __lsm_ro_after_init = {
    LSM_HOOK_INIT(inode_getsecctx, selinux_inode_getsecctx),

    LSM_HOOK_INIT(unix_stream_connect, selinux_socket_unix_stream_connect),
    + LSM_HOOK_INIT(unix_stream_socketpair,
    + selinux_socket_unix_stream_socketpair),
    LSM_HOOK_INIT(unix_may_send, selinux_socket_unix_may_send),

    LSM_HOOK_INIT(socket_create, selinux_socket_create),
    --
    2.17.0
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