Merge branch 'sctp-fix-ignoring-asoc_id-for-tcp-style-sockets-on-some-setsockopts'

Xin Long says:

====================
sctp: fix ignoring asoc_id for tcp-style sockets on some setsockopts

This is a patchset to fix ignoring asoc_id for tcp-style sockets on
some setsockopts, introduced by SCTP_CURRENT_ASSOC of the patchset:

  [net-next,00/24] sctp: support SCTP_FUTURE/CURRENT/ALL_ASSOC
  (https://patchwork.ozlabs.org/cover/1031706/)

As Marcelo suggested, we fix it on each setsockopt that is using
SCTP_CURRENT_ASSOC one by one by adding the check:

    if (sctp_style(sk, TCP))
        	xxx.xxx_assoc_id = SCTP_FUTURE_ASSOC;

so that assoc_id will be completely ingored for tcp-style socket on
setsockopts, and works as SCTP_FUTURE_ASSOC.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 39 insertions, 0 deletions

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 65b538604c5b..011c349d877a 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -2920,6 +2920,9 @@ static int sctp_setsockopt_delayed_ack(struct sock *sk,
                 return 0;
         }
 
+        if (sctp_style(sk, TCP))
+                params.sack_assoc_id = SCTP_FUTURE_ASSOC;
+
         if (params.sack_assoc_id == SCTP_FUTURE_ASSOC ||
             params.sack_assoc_id == SCTP_ALL_ASSOC) {
                 if (params.sack_delay) {
@@ -3024,6 +3027,9 @@ static int sctp_setsockopt_default_send_param(struct sock *sk,
                 return 0;
         }
 
+        if (sctp_style(sk, TCP))
+                info.sinfo_assoc_id = SCTP_FUTURE_ASSOC;
+
         if (info.sinfo_assoc_id == SCTP_FUTURE_ASSOC ||
             info.sinfo_assoc_id == SCTP_ALL_ASSOC) {
                 sp->default_stream = info.sinfo_stream;
@@ -3081,6 +3087,9 @@ static int sctp_setsockopt_default_sndinfo(struct sock *sk,
                 return 0;
         }
 
+        if (sctp_style(sk, TCP))
+                info.snd_assoc_id = SCTP_FUTURE_ASSOC;
+
         if (info.snd_assoc_id == SCTP_FUTURE_ASSOC ||
             info.snd_assoc_id == SCTP_ALL_ASSOC) {
                 sp->default_stream = info.snd_sid;
@@ -3531,6 +3540,9 @@ static int sctp_setsockopt_context(struct sock *sk, char __user *optval,
                 return 0;
         }
 
+        if (sctp_style(sk, TCP))
+                params.assoc_id = SCTP_FUTURE_ASSOC;
+
         if (params.assoc_id == SCTP_FUTURE_ASSOC ||
             params.assoc_id == SCTP_ALL_ASSOC)
                 sp->default_rcv_context = params.assoc_value;
@@ -3670,6 +3682,9 @@ static int sctp_setsockopt_maxburst(struct sock *sk,
                 return 0;
         }
 
+        if (sctp_style(sk, TCP))
+                params.assoc_id = SCTP_FUTURE_ASSOC;
+
         if (params.assoc_id == SCTP_FUTURE_ASSOC ||
             params.assoc_id == SCTP_ALL_ASSOC)
                 sp->max_burst = params.assoc_value;
@@ -3798,6 +3813,9 @@ static int sctp_setsockopt_auth_key(struct sock *sk,
                 goto out;
         }
 
+        if (sctp_style(sk, TCP))
+                authkey->sca_assoc_id = SCTP_FUTURE_ASSOC;
+
         if (authkey->sca_assoc_id == SCTP_FUTURE_ASSOC ||
             authkey->sca_assoc_id == SCTP_ALL_ASSOC) {
                 ret = sctp_auth_set_key(ep, asoc, authkey);
@@ -3853,6 +3871,9 @@ static int sctp_setsockopt_active_key(struct sock *sk,
         if (asoc)
                 return sctp_auth_set_active_key(ep, asoc, val.scact_keynumber);
 
+        if (sctp_style(sk, TCP))
+                val.scact_assoc_id = SCTP_FUTURE_ASSOC;
+
         if (val.scact_assoc_id == SCTP_FUTURE_ASSOC ||
             val.scact_assoc_id == SCTP_ALL_ASSOC) {
                 ret = sctp_auth_set_active_key(ep, asoc, val.scact_keynumber);
@@ -3904,6 +3925,9 @@ static int sctp_setsockopt_del_key(struct sock *sk,
         if (asoc)
                 return sctp_auth_del_key_id(ep, asoc, val.scact_keynumber);
 
+        if (sctp_style(sk, TCP))
+                val.scact_assoc_id = SCTP_FUTURE_ASSOC;
+
         if (val.scact_assoc_id == SCTP_FUTURE_ASSOC ||
             val.scact_assoc_id == SCTP_ALL_ASSOC) {
                 ret = sctp_auth_del_key_id(ep, asoc, val.scact_keynumber);
@@ -3954,6 +3978,9 @@ static int sctp_setsockopt_deactivate_key(struct sock *sk, char __user *optval,
         if (asoc)
                 return sctp_auth_deact_key_id(ep, asoc, val.scact_keynumber);
 
+        if (sctp_style(sk, TCP))
+                val.scact_assoc_id = SCTP_FUTURE_ASSOC;
+
         if (val.scact_assoc_id == SCTP_FUTURE_ASSOC ||
             val.scact_assoc_id == SCTP_ALL_ASSOC) {
                 ret = sctp_auth_deact_key_id(ep, asoc, val.scact_keynumber);
@@ -4169,6 +4196,9 @@ static int sctp_setsockopt_default_prinfo(struct sock *sk,
                 goto out;
         }
 
+        if (sctp_style(sk, TCP))
+                info.pr_assoc_id = SCTP_FUTURE_ASSOC;
+
         if (info.pr_assoc_id == SCTP_FUTURE_ASSOC ||
             info.pr_assoc_id == SCTP_ALL_ASSOC) {
                 SCTP_PR_SET_POLICY(sp->default_flags, info.pr_policy);
@@ -4251,6 +4281,9 @@ static int sctp_setsockopt_enable_strreset(struct sock *sk,
                 goto out;
         }
 
+        if (sctp_style(sk, TCP))
+                params.assoc_id = SCTP_FUTURE_ASSOC;
+
         if (params.assoc_id == SCTP_FUTURE_ASSOC ||
             params.assoc_id == SCTP_ALL_ASSOC)
                 ep->strreset_enable = params.assoc_value;
@@ -4376,6 +4409,9 @@ static int sctp_setsockopt_scheduler(struct sock *sk,
         if (asoc)
                 return sctp_sched_set_sched(asoc, params.assoc_value);
 
+        if (sctp_style(sk, TCP))
+                params.assoc_id = SCTP_FUTURE_ASSOC;
+
         if (params.assoc_id == SCTP_FUTURE_ASSOC ||
             params.assoc_id == SCTP_ALL_ASSOC)
                 sp->default_ss = params.assoc_value;
@@ -4541,6 +4577,9 @@ static int sctp_setsockopt_event(struct sock *sk, char __user *optval,
         if (asoc)
                 return sctp_assoc_ulpevent_type_set(&param, asoc);
 
+        if (sctp_style(sk, TCP))
+                param.se_assoc_id = SCTP_FUTURE_ASSOC;
+
         if (param.se_assoc_id == SCTP_FUTURE_ASSOC ||
             param.se_assoc_id == SCTP_ALL_ASSOC)
                 sctp_ulpevent_type_set(&sp->subscribe,