Mercurial > hg > dhcpcd
changeset 5489:a3d5af47a4e3 draft
Add a comment to prior incase I do something dumb like removing it
in the future if I forgot why it was there.
| author | Roy Marples <roy@marples.name> |
|---|---|
| date | Tue, 29 Sep 2020 08:00:24 +0100 |
| parents | 1712c2fd62a4 |
| children | df4ea0197ce8 |
| files | src/dhcp.c |
| diffstat | 1 files changed, 7 insertions(+), 0 deletions(-) [+] |
line wrap: on
line diff
--- a/src/dhcp.c Tue Sep 29 07:30:27 2020 +0100 +++ b/src/dhcp.c Tue Sep 29 08:00:24 2020 +0100 @@ -3477,6 +3477,13 @@ #ifdef PRIVSEP const struct dhcp_state *state = D_CSTATE(ifp); + /* It's possible that an interface departs and arrives in short + * order to receive a BPF frame out of order. + * There is a similar check in ARP, but much lower down the stack. + * It's not needed for other inet protocols because we send the + * message as a whole and select the interface off that and then + * check state. BPF on the other hand is very interface + * specific and we do need this check. */ if (state == NULL) return;