bpf-firewall: actually invoke BPF_PROG_ATTACH to check whether cgroup/bpf is available
authorLennart Poettering <lennart@poettering.net>
Mon, 27 Nov 2017 11:42:40 +0000 (12:42 +0100)
committerLennart Poettering <lennart@poettering.net>
Wed, 29 Nov 2017 19:15:23 +0000 (20:15 +0100)
commite583759bd1a6f9906e6eda6d3835b514bd720b5c
treeacaa9e6e51b3c78ebcef2de71495aa2ec512743e
parent0634585890b389e3e2b4d3c6d80d4f49d7497061
bpf-firewall: actually invoke BPF_PROG_ATTACH to check whether cgroup/bpf is available

Apparently that's the only way to really know whether the kernel has
CONFIG_CGROUP_BPF turned on.

Fixes: #7054
src/core/bpf-firewall.c