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netlink linux: enable listening to all nsids

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Internal ports may be moved to another network namespace
and when that happens, the vswitch stops receiving netlink
notifications.

This patch enables the vswitch to listen to all network
namespaces that have a nsid assigned into the network
namespace where the socket has been opened.

It requires kernel 4.2 or newer.

Signed-off-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
This commit is contained in:
Flavio Leitner
2018-03-29 23:05:29 -03:00
committed by Ben Pfaff
parent 756819ddd7
commit cf114a7fce
9 changed files with 47 additions and 8 deletions
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2
lib/netlink-socket.h
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@@ -213,6 +213,8 @@ void nl_sock_destroy(struct nl_sock *);
int nl_sock_join_mcgroup(struct nl_sock *, unsigned int multicast_group);
int nl_sock_leave_mcgroup(struct nl_sock *, unsigned int multicast_group);
int nl_sock_listen_all_nsid(struct nl_sock *, bool enable);
#ifdef _WIN32
int nl_sock_subscribe_packets(struct nl_sock *sock);
int nl_sock_unsubscribe_packets(struct nl_sock *sock);