diff options
| author | Roy Marples <roy@marples.name> | 2020-05-20 14:15:30 +0100 |
|---|---|---|
| committer | Roy Marples <roy@marples.name> | 2020-05-20 14:15:30 +0100 |
| commit | 40233274196ace0b2d429f7d628c3afdcda22b24 (patch) | |
| tree | 4e654745cb053c642c32284721abd9c0de5025e6 /src/privsep-bpf.c | |
| parent | e93d001e6c4f7ca5b6bd8052ed444b44f4e93062 (diff) | |
| download | dhcpcd-40233274196ace0b2d429f7d628c3afdcda22b24.tar.xz | |
privsep: Add comment about BPF returing EPERM on OpenBSD.
Looks like an OpenBSD bug.
Diffstat (limited to 'src/privsep-bpf.c')
| -rw-r--r-- | src/privsep-bpf.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/privsep-bpf.c b/src/privsep-bpf.c index 43fee54b..d8cb7973 100644 --- a/src/privsep-bpf.c +++ b/src/privsep-bpf.c @@ -106,6 +106,13 @@ ps_bpf_recvmsg(void *arg) { struct ps_process *psp = arg; + /* + * OpenBSD-6.6 at least will return EPERM here for every + * BOOTP sent except for the first one. + * However with wih EPERM, the BOOTP message is *still* sent. + * This means the BPF write filter isn't working as it should. + * On FreeBSD it works fine. + */ if (ps_recvpsmsg(psp->psp_ctx, psp->psp_fd, ps_bpf_recvmsgcb, arg) == -1) logerr(__func__); |