linux.git/net/sctp/outqueue.c, branch v5.1

sctp: add SCTP_FUTURE_ASOC and SCTP_CURRENT_ASSOC for SCTP_STREAM_SCHEDULER sockopt

2019-01-30T08:44:08+00:00

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 
Signed-off-by: David S. Miller

sctp: define SCTP_SS_DEFAULT for Stream schedulers

2018-11-04T02:40:29+00:00

According to rfc8260#section-4.3.2, SCTP_SS_DEFAULT is required to
defined as SCTP_SS_FCFS or SCTP_SS_RR.

SCTP_SS_FCFS is used for SCTP_SS_DEFAULT's value in this patch.

Fixes: 5bbbbe32a431 ("sctp: introduce stream scheduler foundations")
Reported-by: Jianwen Ji 
Signed-off-by: Xin Long 
Signed-off-by: David S. Miller

sctp: count both sk and asoc sndbuf with skb truesize and sctp_chunk size

2018-10-18T18:23:47+00:00

Now it's confusing that asoc sndbuf_used is doing memory accounting with
SCTP_DATA_SNDSIZE(chunk) + sizeof(sk_buff) + sizeof(sctp_chunk) while sk
sk_wmem_alloc is doing that with skb->truesize + sizeof(sctp_chunk).

It also causes sctp_prsctp_prune to count with a wrong freed memory when
sndbuf_policy is not set.

To make this right and also keep consistent between asoc sndbuf_used, sk
sk_wmem_alloc and sk_wmem_queued, use skb->truesize + sizeof(sctp_chunk)
for them.

Signed-off-by: Xin Long 
Signed-off-by: David S. Miller

sctp: fix fall-through annotation

2018-10-03T16:33:13+00:00

Replace "fallthru" with a proper "fall through" annotation.

This fix is part of the ongoing efforts to enabling
-Wimplicit-fallthrough

Signed-off-by: Gustavo A. R. Silva 
Signed-off-by: David S. Miller

net/sctp: Make wrappers for accessing in/out streams

2018-08-11T19:25:15+00:00

This patch introduces wrappers for accessing in/out streams indirectly.
This will enable to replace physically contiguous memory arrays
of streams with flexible arrays (or maybe any other appropriate
mechanism) which do memory allocation on a per-page basis.

Signed-off-by: Oleg Babin 
Signed-off-by: Konstantin Khorenko 
Signed-off-by: David S. Miller

sctp: checkpatch fixups

2018-05-15T03:15:27+00:00

A collection of fixups from previous patches, left for later to not
introduce unnecessary changes while moving code around.

Signed-off-by: Marcelo Ricardo Leitner 
Signed-off-by: David S. Miller

sctp: add asoc and packet to sctp_flush_ctx

2018-05-15T03:15:27+00:00

Pre-compute these so the compiler won't reload them (due to
no-strict-aliasing).

Changes since v2:
- Do not replace a return with a break in sctp_outq_flush_data

Signed-off-by: Marcelo Ricardo Leitner 
Signed-off-by: David S. Miller

sctp: add sctp_flush_ctx, a context struct on outq_flush routines

2018-05-15T03:15:27+00:00

With this struct we avoid passing lots of variables around and taking care
of updating the current transport/packet.

Signed-off-by: Marcelo Ricardo Leitner 
Signed-off-by: David S. Miller

sctp: rework switch cases in sctp_outq_flush_data

2018-05-15T02:57:15+00:00

Remove an inner one, which tended to be error prone due to the cascading
and it can be replaced by a simple if ().

Rework the outer one so that the actual flush code is not inside it. Now
we first validate if we can or cannot send data, return if not, and then
the flush code.

Suggested-by: Xin Long 
Signed-off-by: Marcelo Ricardo Leitner 
Signed-off-by: David S. Miller

sctp: make use of gfp on retransmissions

2018-05-15T02:57:15+00:00

Retransmissions may be triggered when in user context, so lets make use
of gfp.

Signed-off-by: Marcelo Ricardo Leitner 
Signed-off-by: David S. Miller