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Helper function bpf_get_netns_cookie

v5.7

Definition

Copyright (c) 2015 The Libbpf Authors. All rights reserved.

Retrieve the cookie (generated by the kernel) of the network namespace the input ctx is associated with. The network namespace cookie remains stable for its lifetime and provides a global identifier that can be assumed unique. If ctx is NULL, then the helper returns the cookie for the initial network namespace. The cookie itself is very similar to that of bpf_get_socket_cookie() helper, but for network namespaces instead of sockets.

Returns

A 8-byte long opaque number.

static __u64 (* const bpf_get_netns_cookie)(void *ctx) = (void *) 122;

Usage

Docs could be improved

This part of the docs is incomplete, contributions are very welcome

Program types

This helper call can be used in the following program types:

Example

Docs could be improved

This part of the docs is incomplete, contributions are very welcome