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Diffstat (limited to 'net/sctp/socket.c')
-rw-r--r--net/sctp/socket.c49
1 files changed, 48 insertions, 1 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index d61729e99856..9c193887c5cd 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -2112,9 +2112,13 @@ static int sctp_recvmsg(struct kiocb *iocb, struct sock *sk,
sp->pf->skb_msgname(skb, msg->msg_name, addr_len);
}
+ /* Check if we allow SCTP_RCVINFO. */
+ if (sp->recvrcvinfo)
+ sctp_ulpevent_read_rcvinfo(event, msg);
/* Check if we allow SCTP_SNDRCVINFO. */
if (sp->subscribe.sctp_data_io_event)
sctp_ulpevent_read_sndrcvinfo(event, msg);
+
#if 0
/* FIXME: we should be calling IP/IPv6 layers. */
if (sk->sk_protinfo.af_inet.cmsg_flags)
@@ -3541,7 +3545,6 @@ static int sctp_setsockopt_auto_asconf(struct sock *sk, char __user *optval,
return 0;
}
-
/*
* SCTP_PEER_ADDR_THLDS
*
@@ -3592,6 +3595,22 @@ static int sctp_setsockopt_paddr_thresholds(struct sock *sk,
return 0;
}
+static int sctp_setsockopt_recvrcvinfo(struct sock *sk,
+ char __user *optval,
+ unsigned int optlen)
+{
+ int val;
+
+ if (optlen < sizeof(int))
+ return -EINVAL;
+ if (get_user(val, (int __user *) optval))
+ return -EFAULT;
+
+ sctp_sk(sk)->recvrcvinfo = (val == 0) ? 0 : 1;
+
+ return 0;
+}
+
/* API 6.2 setsockopt(), getsockopt()
*
* Applications use setsockopt() and getsockopt() to set or retrieve
@@ -3743,6 +3762,9 @@ static int sctp_setsockopt(struct sock *sk, int level, int optname,
case SCTP_PEER_ADDR_THLDS:
retval = sctp_setsockopt_paddr_thresholds(sk, optval, optlen);
break;
+ case SCTP_RECVRCVINFO:
+ retval = sctp_setsockopt_recvrcvinfo(sk, optval, optlen);
+ break;
default:
retval = -ENOPROTOOPT;
break;
@@ -3989,6 +4011,8 @@ static int sctp_init_sock(struct sock *sk)
/* Enable Nagle algorithm by default. */
sp->nodelay = 0;
+ sp->recvrcvinfo = 0;
+
/* Enable by default. */
sp->v4mapped = 1;
@@ -5770,6 +5794,26 @@ static int sctp_getsockopt_assoc_stats(struct sock *sk, int len,
return 0;
}
+static int sctp_getsockopt_recvrcvinfo(struct sock *sk, int len,
+ char __user *optval,
+ int __user *optlen)
+{
+ int val = 0;
+
+ if (len < sizeof(int))
+ return -EINVAL;
+
+ len = sizeof(int);
+ if (sctp_sk(sk)->recvrcvinfo)
+ val = 1;
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &val, len))
+ return -EFAULT;
+
+ return 0;
+}
+
static int sctp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
@@ -5913,6 +5957,9 @@ static int sctp_getsockopt(struct sock *sk, int level, int optname,
case SCTP_GET_ASSOC_STATS:
retval = sctp_getsockopt_assoc_stats(sk, len, optval, optlen);
break;
+ case SCTP_RECVRCVINFO:
+ retval = sctp_getsockopt_recvrcvinfo(sk, len, optval, optlen);
+ break;
default:
retval = -ENOPROTOOPT;
break;