From b712d0328c2c3ab456847f29f711e785f70cd8a5 Mon Sep 17 00:00:00 2001 From: Xin Long Date: Wed, 16 Nov 2022 15:01:21 -0500 Subject: [PATCH] sctp: add sysctl net.sctp.l3mdev_accept This patch is to add sysctl net.sctp.l3mdev_accept to allow users to change the pernet global l3mdev_accept. Signed-off-by: Xin Long Signed-off-by: David S. Miller --- Documentation/networking/ip-sysctl.rst | 9 +++++++++ net/sctp/sysctl.c | 11 +++++++++++ 2 files changed, 20 insertions(+) diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst index 727b25c..7fbd060 100644 --- a/Documentation/networking/ip-sysctl.rst +++ b/Documentation/networking/ip-sysctl.rst @@ -3127,6 +3127,15 @@ ecn_enable - BOOLEAN Default: 1 +l3mdev_accept - BOOLEAN + Enabling this option allows a "global" bound socket to work + across L3 master domains (e.g., VRFs) with packets capable of + being received regardless of the L3 domain in which they + originated. Only valid when the kernel was compiled with + CONFIG_NET_L3_MASTER_DEV. + + Default: 1 (enabled) + ``/proc/sys/net/core/*`` ======================== diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c index b46a416..7f40ed1 100644 --- a/net/sctp/sysctl.c +++ b/net/sctp/sysctl.c @@ -347,6 +347,17 @@ static struct ctl_table sctp_net_table[] = { .extra1 = &max_autoclose_min, .extra2 = &max_autoclose_max, }, +#ifdef CONFIG_NET_L3_MASTER_DEV + { + .procname = "l3mdev_accept", + .data = &init_net.sctp.l3mdev_accept, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_ONE, + }, +#endif { .procname = "pf_enable", .data = &init_net.sctp.pf_enable, -- 2.7.4