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612ff099a1
Add support for map in map in the loader and add a small example program. The outer map uses inner_id to reference a bpf_elf_map with a given ID as the inner type. Loading maps is done in three passes, i) all non-map in map maps are loaded, ii) all map in map maps are loaded based on the inner_id map spec of a non-map in map with corresponding id, and iii) related inner maps are attached to the map in map with given inner_idx key. Pinned objetcs are assumed to be managed externally, so they are only retrieved from BPF fs. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> |
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| .. | ||
| bpf_cyclic.c | ||
| bpf_graft.c | ||
| bpf_map_in_map.c | ||
| bpf_shared.c | ||
| bpf_tailcall.c | ||
| README | ||
eBPF toy code examples (running in kernel) to familiarize yourself
with syntax and features:
- bpf_prog.c -> Classifier examples with using maps
- bpf_shared.c -> Ingress/egress map sharing example
- bpf_tailcall.c -> Using tail call chains
- bpf_cyclic.c -> Simple cycle as tail calls
- bpf_graft.c -> Demo on altering runtime behaviour
User space code example:
- bpf_agent.c -> Counterpart to bpf_prog.c for user
space to transfer/read out map data