xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

sctp: implement sender-side procedures for SSN Reset Request Parameter

Browse Source 
This patch is to implement sender-side procedures for the Outgoing
and Incoming SSN Reset Request Parameter described in rfc6525 section
5.1.2 and 5.1.3.

It is also add sockopt SCTP_RESET_STREAMS in rfc6525 section 6.3.2
for users.

Note that the new asoc member strreset_outstanding is to make sure
only one reconf request chunk on the fly as rfc6525 section 5.1.1
demands.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long
2017-01-18 00:44:47 +08:00
committed by David S. Miller
parent 9fb657aec0
commit 7f9d68ac94
6 changed files with 149 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
net/sctp/socket.c
View File

@@ -3786,6 +3786,32 @@ out:
return retval;
}
static int sctp_setsockopt_reset_streams(struct sock *sk,
char __user *optval,
unsigned int optlen)
{
struct sctp_reset_streams *params;
struct sctp_association *asoc;
int retval = -EINVAL;
if (optlen < sizeof(struct sctp_reset_streams))
return -EINVAL;
params = memdup_user(optval, optlen);
if (IS_ERR(params))
return PTR_ERR(params);
asoc = sctp_id2assoc(sk, params->srs_assoc_id);
if (!asoc)
goto out;
retval = sctp_send_reset_streams(asoc, params);
out:
kfree(params);
return retval;
}
/* API 6.2 setsockopt(), getsockopt()
*
* Applications use setsockopt() and getsockopt() to set or retrieve
@@ -3955,6 +3981,9 @@ static int sctp_setsockopt(struct sock *sk, int level, int optname,
case SCTP_ENABLE_STREAM_RESET:
retval = sctp_setsockopt_enable_strreset(sk, optval, optlen);
break;
case SCTP_RESET_STREAMS:
retval = sctp_setsockopt_reset_streams(sk, optval, optlen);
break;
default:
retval = -ENOPROTOOPT;
break;