eBPF: Update map definition in sockops program

[debasishbsws]

Description

bpf_map_def map declaration was deprecated https://github.com/libbpf/libbpf/wiki/Libbpf%3A-the-road-to-v1.0#drop-support-for-legacy-bpf-map-declaration-syntax

was getting errors while building from the source for Wolfi

2024/04/04 18:21:20 INFO clang -Wno-error=unused-but-set-variable -m64 -D__x86_64__ -x c -D__KERNEL__ -D__ASM_SYSREG_H -Wunused -Wall -Werror -fno-stack-protector -O2 -target bpf -emit-llvm -g -I/usr/include/x86_64-pc-linux-gnu -c sockops.c -o sockops.ll
2024/04/04 18:21:20 WARN sockops.c:18:53: error: variable has incomplete type 'struct bpf_map_def'
2024/04/04 18:21:20 WARN struct bpf_map_def __attribute__((section("maps"))) calico_sk_endpoints = {
2024/04/04 18:21:20 WARN                                                     ^
2024/04/04 18:21:20 WARN sockops.c:18:8: note: forward declaration of 'struct bpf_map_def'
2024/04/04 18:21:20 WARN struct bpf_map_def __attribute__((section("maps"))) calico_sk_endpoints = {
2024/04/04 18:21:20 WARN        ^
2024/04/04 18:21:20 WARN 1 error generated.

Release Note

ebpf: Update map definition in sockops program to let libbpf v1.0+ load them successfully.

[CLAassistant]

All committers have signed the CLA.

[mazdakn]

@debasishbsws Thanks for finding and fixing this. We recently fixed the issue in PR #8610, but failed to catch this one.

[mazdakn]

/sem-approve