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authorXin Long <lucien.xin@gmail.com>2019-01-28 15:08:32 +0800
committerDavid S. Miller <davem@davemloft.net>2019-01-30 00:44:07 -0800
commit2e7709d1cc665a5dbd079e49809907e9e17a9df3 (patch)
tree2c73041957d6c1f38bcdd2cfa25056085608bf21 /net/sctp
parentacce7f3b8d4f360d879762a81d4084f6ee1e3869 (diff)
downloadlinux-stericsson-2e7709d1cc665a5dbd079e49809907e9e17a9df3.tar.gz
sctp: use SCTP_FUTURE_ASSOC for SCTP_INTERLEAVING_SUPPORTED sockopt
Check with SCTP_FUTURE_ASSOC instead in sctp_set/getsockopt_reconfig_supported, it's compatible with 0. 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.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index e5487a1140f9..b9263ad6a3a1 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4240,8 +4240,8 @@ static int sctp_setsockopt_interleaving_supported(struct sock *sk,
unsigned int optlen)
{
struct sctp_sock *sp = sctp_sk(sk);
- struct net *net = sock_net(sk);
struct sctp_assoc_value params;
+ struct sctp_association *asoc;
int retval = -EINVAL;
if (optlen < sizeof(params))
@@ -4253,10 +4253,12 @@ static int sctp_setsockopt_interleaving_supported(struct sock *sk,
goto out;
}
- if (params.assoc_id)
+ asoc = sctp_id2assoc(sk, params.assoc_id);
+ if (!asoc && params.assoc_id != SCTP_FUTURE_ASSOC &&
+ sctp_style(sk, UDP))
goto out;
- if (!net->sctp.intl_enable || !sp->frag_interleave) {
+ if (!sock_net(sk)->sctp.intl_enable || !sp->frag_interleave) {
retval = -EPERM;
goto out;
}
@@ -7453,17 +7455,15 @@ static int sctp_getsockopt_interleaving_supported(struct sock *sk, int len,
goto out;
asoc = sctp_id2assoc(sk, params.assoc_id);
- if (asoc) {
- params.assoc_value = asoc->intl_enable;
- } else if (!params.assoc_id) {
- struct sctp_sock *sp = sctp_sk(sk);
-
- params.assoc_value = sp->strm_interleave;
- } else {
+ if (!asoc && params.assoc_id != SCTP_FUTURE_ASSOC &&
+ sctp_style(sk, UDP)) {
retval = -EINVAL;
goto out;
}
+ params.assoc_value = asoc ? asoc->intl_enable
+ : sctp_sk(sk)->strm_interleave;
+
if (put_user(len, optlen))
goto out;