diff options
| author | Tom Gundersen <teg@jklm.no> | 2018-05-04 16:28:22 +0200 |
|---|---|---|
| committer | James Morris <james.morris@microsoft.com> | 2018-05-04 12:48:54 -0700 |
| commit | 5859cdf55063943192f316b3d6c673fd6fcbee46 (patch) | |
| tree | 0e54055d2dedb3c8f958de14be63fc3f7b47a263 /security/smack | |
| parent | 0b811db2cb2aabc910e53d34ebb95a15997c33e7 (diff) | |
| download | lwn-5859cdf55063943192f316b3d6c673fd6fcbee46.tar.gz lwn-5859cdf55063943192f316b3d6c673fd6fcbee46.zip | |
smack: provide socketpair callback
Make sure to implement the new socketpair callback so the SO_PEERSEC
call on socketpair(2)s will return correct information.
Signed-off-by: Tom Gundersen <teg@jklm.no>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: James Morris <james.morris@microsoft.com>
Diffstat (limited to 'security/smack')
| -rw-r--r-- | security/smack/smack_lsm.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 0b414836bebd..dcb976f98df2 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -2842,6 +2842,27 @@ static int smack_socket_post_create(struct socket *sock, int family, return smack_netlabel(sock->sk, SMACK_CIPSO_SOCKET); } +/** + * smack_socket_socketpair - create socket pair + * @socka: one socket + * @sockb: another socket + * + * Cross reference the peer labels for SO_PEERSEC + * + * Returns 0 on success, and error code otherwise + */ +static int smack_socket_socketpair(struct socket *socka, + struct socket *sockb) +{ + struct socket_smack *asp = socka->sk->sk_security; + struct socket_smack *bsp = sockb->sk->sk_security; + + asp->smk_packet = bsp->smk_out; + bsp->smk_packet = asp->smk_out; + + return 0; +} + #ifdef SMACK_IPV6_PORT_LABELING /** * smack_socket_bind - record port binding information. @@ -4724,6 +4745,7 @@ static struct security_hook_list smack_hooks[] __lsm_ro_after_init = { LSM_HOOK_INIT(unix_may_send, smack_unix_may_send), LSM_HOOK_INIT(socket_post_create, smack_socket_post_create), + LSM_HOOK_INIT(socket_socketpair, smack_socket_socketpair), #ifdef SMACK_IPV6_PORT_LABELING LSM_HOOK_INIT(socket_bind, smack_socket_bind), #endif |