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images: add a network namespace id into images

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It is possible to assign id for network namespaces and
this id will be used by the kernel in some netlink messages.
If no id is assigned when the kernel needs it, it will be
automatically assigned by the kernel.

For example, this id is reported for peer veth devices.

v2: add a comment
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
This commit is contained in:
Andrei Vagin 2016-12-17 06:22:26 +03:00
parent a75f0fa8bc
commit dd9e114276
1 changed files with 15 additions and 0 deletions
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15
images/netdev.proto
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@ -42,9 +42,22 @@ message net_device_entry {
optional macvlan_link_entry macvlan = 11; optional macvlan_link_entry macvlan = 11;
optional uint32 peer_ifindex = 12;
optional uint32 peer_nsid = 13;
optional sit_entry sit = 15; optional sit_entry sit = 15;
} }
message netns_id {
/* This is CRIU's id which is allocated for each namespace */
required uint32 target_ns_id = 1;
/*
* This is an id which can be used to address this namespace
* from another network namespace. Each network namespace has
* one set of id-s for other namespaces.
*/
required int32 netnsid_value = 2;
}
message netns_entry { message netns_entry {
repeated int32 def_conf = 1; repeated int32 def_conf = 1;
repeated int32 all_conf = 2; repeated int32 all_conf = 2;
@ -54,4 +67,6 @@ message netns_entry {
repeated sysctl_entry def_conf6 = 5; repeated sysctl_entry def_conf6 = 5;
repeated sysctl_entry all_conf6 = 6; repeated sysctl_entry all_conf6 = 6;
repeated netns_id nsids = 7;
} }