diff options
Diffstat (limited to 'net/sctp/socket.c')
| -rw-r--r-- | net/sctp/socket.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 9ffdecbc3531..65cc354c520f 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -3647,6 +3647,33 @@ static int sctp_setsockopt_del_key(struct sock *sk, } /* + * 8.3.4 Deactivate a Shared Key (SCTP_AUTH_DEACTIVATE_KEY) + * + * This set option will deactivate a shared secret key. + */ +static int sctp_setsockopt_deactivate_key(struct sock *sk, char __user *optval, + unsigned int optlen) +{ + struct sctp_endpoint *ep = sctp_sk(sk)->ep; + struct sctp_authkeyid val; + struct sctp_association *asoc; + + if (!ep->auth_enable) + return -EACCES; + + if (optlen != sizeof(struct sctp_authkeyid)) + return -EINVAL; + if (copy_from_user(&val, optval, optlen)) + return -EFAULT; + + asoc = sctp_id2assoc(sk, val.scact_assoc_id); + if (!asoc && val.scact_assoc_id && sctp_style(sk, UDP)) + return -EINVAL; + + return sctp_auth_deact_key_id(ep, asoc, val.scact_keynumber); +} + +/* * 8.1.23 SCTP_AUTO_ASCONF * * This option will enable or disable the use of the automatic generation of @@ -4238,6 +4265,9 @@ static int sctp_setsockopt(struct sock *sk, int level, int optname, case SCTP_AUTH_DELETE_KEY: retval = sctp_setsockopt_del_key(sk, optval, optlen); break; + case SCTP_AUTH_DEACTIVATE_KEY: + retval = sctp_setsockopt_deactivate_key(sk, optval, optlen); + break; case SCTP_AUTO_ASCONF: retval = sctp_setsockopt_auto_asconf(sk, optval, optlen); break; @@ -7212,6 +7242,7 @@ static int sctp_getsockopt(struct sock *sk, int level, int optname, case SCTP_AUTH_KEY: case SCTP_AUTH_CHUNK: case SCTP_AUTH_DELETE_KEY: + case SCTP_AUTH_DEACTIVATE_KEY: retval = -EOPNOTSUPP; break; case SCTP_HMAC_IDENT: |