mirror of
https://github.com/checkpoint-restore/criu.git
synced 2026-01-23 18:25:14 +00:00
c2b21fbf4b
It works like other external resources.
A user specify which namespaces are external and have not to be dumped.
On restore, the user gives file descriptors to preconfigured namespaces.
How to use:
dump:
--external net[INO]:KEY
restore:
--inherit-fd fd[NSFD]:KEY
The test script contains more details how to use this:
test/others/netns_ext/run.sh
Acked-by: Adrian Reber <areber@redhat.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
74 lines
1.6 KiB
Protocol Buffer
74 lines
1.6 KiB
Protocol Buffer
syntax = "proto2";
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import "macvlan.proto";
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import "opts.proto";
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import "tun.proto";
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import "sysctl.proto";
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import "sit.proto";
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enum nd_type {
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LOOPBACK = 1;
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VETH = 2;
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TUN = 3;
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/*
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* External link -- for those CRIU only dumps and restores
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* link parameters such as flags, address, MTU, etc. The
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* existence of the link on restore should be provided
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* by the setup-namespaces script.
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*/
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EXTLINK = 4;
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VENET = 5; /* OpenVZ device */
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BRIDGE = 6;
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MACVLAN = 7;
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SIT = 8;
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}
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message net_device_entry {
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required nd_type type = 1;
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required uint32 ifindex = 2;
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required uint32 mtu = 3;
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required uint32 flags = 4 [(criu).hex = true];
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required string name = 5;
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optional tun_link_entry tun = 6;
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optional bytes address = 7;
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repeated int32 conf = 8;
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repeated sysctl_entry conf4 = 9;
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repeated sysctl_entry conf6 = 10;
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optional macvlan_link_entry macvlan = 11;
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optional uint32 peer_ifindex = 12;
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optional uint32 peer_nsid = 13;
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optional uint32 master = 14;
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optional sit_entry sit = 15;
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}
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message netns_id {
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/* This is CRIU's id which is allocated for each namespace */
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required uint32 target_ns_id = 1;
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/*
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* This is an id which can be used to address this namespace
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* from another network namespace. Each network namespace has
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* one set of id-s for other namespaces.
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*/
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required int32 netnsid_value = 2;
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}
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message netns_entry {
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repeated int32 def_conf = 1;
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repeated int32 all_conf = 2;
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repeated sysctl_entry def_conf4 = 3;
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repeated sysctl_entry all_conf4 = 4;
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repeated sysctl_entry def_conf6 = 5;
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repeated sysctl_entry all_conf6 = 6;
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repeated netns_id nsids = 7;
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optional string ext_key = 8;
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}
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