lkml.org 
[lkml]   [2020]   [Jul]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH bpf-next] bpf: Generate cookie for new non-initial net NS
Date
For non-initial network NS, the net cookie is generated when
bpf_get_netns_cookie_sock is called for the first time, but it is more
reasonable to complete the cookie generation work when creating a new
network NS, just like init_net.
net_gen_cookie() be moved into setup_net() that it can serve the initial
and non-initial network namespace.

Signed-off-by: Jianlin Lv <Jianlin.Lv@arm.com>
---
net/core/net_namespace.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index dcd61aca343e..5937bd0df56d 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -336,6 +336,7 @@ static __net_init int setup_net(struct net *net, struct user_namespace *user_ns)
idr_init(&net->netns_ids);
spin_lock_init(&net->nsid_lock);
mutex_init(&net->ipv4.ra_mutex);
+ net_gen_cookie(net);

list_for_each_entry(ops, &pernet_list, list) {
error = ops_init(ops, net);
@@ -1101,7 +1102,6 @@ static int __init net_ns_init(void)
panic("Could not allocate generic netns");

rcu_assign_pointer(init_net.gen, ng);
- net_gen_cookie(&init_net);

down_write(&pernet_ops_rwsem);
if (setup_net(&init_net, &init_user_ns))
--
2.17.1
\
 
 \ /
  Last update: 2020-07-20 16:11    [W:0.041 / U:0.252 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site