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authorXin Long <lucien.xin@gmail.com>2019-01-28 15:08:44 +0800
committerDavid S. Miller <davem@davemloft.net>2019-01-30 00:44:08 -0800
commit99a62135e127977c06f4c44b6b9f24492a4b2153 (patch)
tree18a1209e3c73d3fef28fa4277e0a6c8167b7142a /net/sctp
parent3a583059d1870ad14437a6ac8730ccf7676f6df8 (diff)
downloadlinux-stericsson-99a62135e127977c06f4c44b6b9f24492a4b2153.tar.gz
sctp: use SCTP_FUTURE_ASSOC and add SCTP_CURRENT_ASSOC for SCTP_ENABLE_STREAM_RESET sockopt
Check with SCTP_ALL_ASSOC instead in sctp_setsockopt_enable_strreset and check with SCTP_FUTURE_ASSOC instead in sctp_getsockopt_enable_strreset, it's compatible with 0. SCTP_CURRENT_ASSOC is supported for SCTP_ENABLE_STREAM_RESET in this patch. It also adjusts some code to keep a same check form as other functions. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp')
-rw-r--r--net/sctp/socket.c33
1 files changed, 20 insertions, 13 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 2f701710b198..93004c7ed13f 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4222,6 +4222,7 @@ static int sctp_setsockopt_enable_strreset(struct sock *sk,
char __user *optval,
unsigned int optlen)
{
+ struct sctp_endpoint *ep = sctp_sk(sk)->ep;
struct sctp_assoc_value params;
struct sctp_association *asoc;
int retval = -EINVAL;
@@ -4238,17 +4239,25 @@ static int sctp_setsockopt_enable_strreset(struct sock *sk,
goto out;
asoc = sctp_id2assoc(sk, params.assoc_id);
+ if (!asoc && params.assoc_id > SCTP_ALL_ASSOC &&
+ sctp_style(sk, UDP))
+ goto out;
+
+ retval = 0;
+
if (asoc) {
asoc->strreset_enable = params.assoc_value;
- } else if (!params.assoc_id) {
- struct sctp_sock *sp = sctp_sk(sk);
-
- sp->ep->strreset_enable = params.assoc_value;
- } else {
goto out;
}
- retval = 0;
+ if (params.assoc_id == SCTP_FUTURE_ASSOC ||
+ params.assoc_id == SCTP_ALL_ASSOC)
+ ep->strreset_enable = params.assoc_value;
+
+ if (params.assoc_id == SCTP_CURRENT_ASSOC ||
+ params.assoc_id == SCTP_ALL_ASSOC)
+ list_for_each_entry(asoc, &ep->asocs, asocs)
+ asoc->strreset_enable = params.assoc_value;
out:
return retval;
@@ -7509,17 +7518,15 @@ static int sctp_getsockopt_enable_strreset(struct sock *sk, int len,
goto out;
asoc = sctp_id2assoc(sk, params.assoc_id);
- if (asoc) {
- params.assoc_value = asoc->strreset_enable;
- } else if (!params.assoc_id) {
- struct sctp_sock *sp = sctp_sk(sk);
-
- params.assoc_value = sp->ep->strreset_enable;
- } else {
+ if (!asoc && params.assoc_id != SCTP_FUTURE_ASSOC &&
+ sctp_style(sk, UDP)) {
retval = -EINVAL;
goto out;
}
+ params.assoc_value = asoc ? asoc->strreset_enable
+ : sctp_sk(sk)->ep->strreset_enable;
+
if (put_user(len, optlen))
goto out;