Commit 1b0b8114 authored by Xin Long's avatar Xin Long Committed by David S. Miller

sctp: make ecn flag per netns and endpoint

This patch is to add ecn flag for both netns_sctp and sctp_endpoint,
net->sctp.ecn_enable is set 1 by default, and ep->ecn_enable will
be initialized with net->sctp.ecn_enable.

asoc->peer.ecn_capable will be set during negotiation only when
ep->ecn_enable is set on both sides.
Signed-off-by: default avatarXin Long <lucien.xin@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7add83d9
......@@ -128,6 +128,9 @@ struct netns_sctp {
/* Flag to indicate if stream interleave is enabled */
int intl_enable;
/* Flag to indicate if ecn is enabled */
int ecn_enable;
/*
* Policy to control SCTP IPv4 address scoping
* 0 - Disable IPv4 address scoping
......
......@@ -1322,7 +1322,8 @@ struct sctp_endpoint {
/* SCTP-AUTH: endpoint shared keys */
struct list_head endpoint_shared_keys;
__u16 active_key_id;
__u8 auth_enable:1,
__u8 ecn_enable:1,
auth_enable:1,
intl_enable:1,
prsctp_enable:1,
asconf_enable:1,
......
......@@ -106,6 +106,7 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep,
*/
ep->prsctp_enable = net->sctp.prsctp_enable;
ep->reconf_enable = net->sctp.reconf_enable;
ep->ecn_enable = net->sctp.ecn_enable;
/* Remember who we are attached to. */
ep->base.sk = sk;
......
......@@ -1254,6 +1254,9 @@ static int __net_init sctp_defaults_init(struct net *net)
/* Disable AUTH by default. */
net->sctp.auth_enable = 0;
/* Enable ECN by default. */
net->sctp.ecn_enable = 1;
/* Set SCOPE policy to enabled */
net->sctp.scope_policy = SCTP_SCOPE_POLICY_ENABLE;
......
......@@ -244,6 +244,8 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
chunksize = sizeof(init) + addrs_len;
chunksize += SCTP_PAD4(SCTP_SAT_LEN(num_types));
if (asoc->ep->ecn_enable)
chunksize += sizeof(ecap_param);
if (asoc->ep->prsctp_enable)
......@@ -335,6 +337,7 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
sctp_addto_chunk(retval, sizeof(sat), &sat);
sctp_addto_chunk(retval, num_types * sizeof(__u16), &types);
if (asoc->ep->ecn_enable)
sctp_addto_chunk(retval, sizeof(ecap_param), &ecap_param);
/* Add the supported extensions parameter. Be nice and add this
......@@ -2597,8 +2600,13 @@ static int sctp_process_param(struct sctp_association *asoc,
break;
case SCTP_PARAM_ECN_CAPABLE:
if (asoc->ep->ecn_enable) {
asoc->peer.ecn_capable = 1;
break;
}
/* Fall Through */
goto fall_through;
case SCTP_PARAM_ADAPTATION_LAYER_IND:
asoc->peer.adaptation_ind = ntohl(param.aind->adaptation_ind);
......
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