aboutsummaryrefslogtreecommitdiff
path: root/net/sctp
diff options
context:
space:
mode:
authorXin Long <lucien.xin@gmail.com>2019-01-28 15:08:46 +0800
committerDavid S. Miller <davem@davemloft.net>2019-01-30 00:44:08 -0800
commit7efba10d6bd22030fb5931e50bf97496f932f00e (patch)
tree294679d5e9274ec31c22f9b1fd4be29279fecafb /net/sctp
parentd251f05e3ba2e6ab7f59c88b497facf2f61c5b2f (diff)
downloadlinux-stericsson-7efba10d6bd22030fb5931e50bf97496f932f00e.tar.gz
sctp: add SCTP_FUTURE_ASOC and SCTP_CURRENT_ASSOC for SCTP_STREAM_SCHEDULER sockopt
Check with SCTP_ALL_ASSOC instead in sctp_setsockopt_scheduler and check with SCTP_FUTURE_ASSOC instead in sctp_getsockopt_scheduler, it's compatible with 0. SCTP_CURRENT_ASSOC is supported for SCTP_STREAM_SCHEDULER in this patch. It also adds default_ss in sctp_sock to support SCTP_FUTURE_ASSOC. 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/outqueue.c2
-rw-r--r--net/sctp/socket.c44
2 files changed, 32 insertions, 14 deletions
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index c37e1c2dec9d..fd33281999b5 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -212,7 +212,7 @@ void sctp_outq_init(struct sctp_association *asoc, struct sctp_outq *q)
INIT_LIST_HEAD(&q->retransmit);
INIT_LIST_HEAD(&q->sacked);
INIT_LIST_HEAD(&q->abandoned);
- sctp_sched_set_sched(asoc, SCTP_SS_DEFAULT);
+ sctp_sched_set_sched(asoc, sctp_sk(asoc->base.sk)->default_ss);
}
/* Free the outqueue structure and any related pending chunks.
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 00b0f6659251..9644bdc8e85c 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4352,29 +4352,44 @@ static int sctp_setsockopt_scheduler(struct sock *sk,
char __user *optval,
unsigned int optlen)
{
+ struct sctp_sock *sp = sctp_sk(sk);
struct sctp_association *asoc;
struct sctp_assoc_value params;
- int retval = -EINVAL;
+ int retval = 0;
if (optlen < sizeof(params))
- goto out;
+ return -EINVAL;
optlen = sizeof(params);
- if (copy_from_user(&params, optval, optlen)) {
- retval = -EFAULT;
- goto out;
- }
+ if (copy_from_user(&params, optval, optlen))
+ return -EFAULT;
if (params.assoc_value > SCTP_SS_MAX)
- goto out;
+ return -EINVAL;
asoc = sctp_id2assoc(sk, params.assoc_id);
- if (!asoc)
- goto out;
+ if (!asoc && params.assoc_id > SCTP_ALL_ASSOC &&
+ sctp_style(sk, UDP))
+ return -EINVAL;
- retval = sctp_sched_set_sched(asoc, params.assoc_value);
+ if (asoc)
+ return sctp_sched_set_sched(asoc, params.assoc_value);
+
+ if (params.assoc_id == SCTP_FUTURE_ASSOC ||
+ params.assoc_id == SCTP_ALL_ASSOC)
+ sp->default_ss = params.assoc_value;
+
+ if (params.assoc_id == SCTP_CURRENT_ASSOC ||
+ params.assoc_id == SCTP_ALL_ASSOC) {
+ list_for_each_entry(asoc, &sp->ep->asocs, asocs) {
+ int ret = sctp_sched_set_sched(asoc,
+ params.assoc_value);
+
+ if (ret && !retval)
+ retval = ret;
+ }
+ }
-out:
return retval;
}
@@ -5005,6 +5020,7 @@ static int sctp_init_sock(struct sock *sk)
sp->param_flags = SPP_HB_ENABLE |
SPP_PMTUD_ENABLE |
SPP_SACKDELAY_ENABLE;
+ sp->default_ss = SCTP_SS_DEFAULT;
/* If enabled no SCTP message fragmentation will be performed.
* Configure through SCTP_DISABLE_FRAGMENTS socket option.
@@ -7572,12 +7588,14 @@ static int sctp_getsockopt_scheduler(struct sock *sk, int len,
goto out;
asoc = sctp_id2assoc(sk, params.assoc_id);
- if (!asoc) {
+ if (!asoc && params.assoc_id != SCTP_FUTURE_ASSOC &&
+ sctp_style(sk, UDP)) {
retval = -EINVAL;
goto out;
}
- params.assoc_value = sctp_sched_get_sched(asoc);
+ params.assoc_value = asoc ? sctp_sched_get_sched(asoc)
+ : sctp_sk(sk)->default_ss;
if (put_user(len, optlen))
goto out;