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Florian Obser 2023-02-21 13:17:22 +01:00
parent 3c87297ae7
commit 024073d10e
1 changed files with 3 additions and 3 deletions
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@ -630,9 +630,9 @@ performed.
For the other three, the /frontend/ process sends a piece of data that
influences how the action is performed. The piece of data has a fixed,
known at compile time, length. For example =IMSG​_OPEN​_BPFSOCK= is send
known at compile time, length. For example =IMSG​_OPEN​_BPFSOCK= is sent
by the /frontend/ process when it learns of a new network interface
gaining the /autoconf/ flag. It needs a new bpf(4) socket to send an
gaining the /autoconf/ flag. It needs a new bpf(4) socket to send and
receive DHCP messages on that interface[fn::bpf(4) sockets are bound
to a specific interface and then locked, meaning the /frontend/
process will not be able to change anything about the socket. That
@ -649,7 +649,7 @@ interface in the system. If it sends something else, we assume the
#+end_src
We are using the same pattern of checking the data size for all the
other message types send from the /frontend/ process. The same is true
for how [[https://github.com/openbsd/src/blob/3c46ceeaef274bbef234dac63245c4b6567168d7/sbin/dhcpleased/dhcpleased.c#L514][main​_dispatch​_engine()]] handles the messages send by the
for how [[https://github.com/openbsd/src/blob/3c46ceeaef274bbef234dac63245c4b6567168d7/sbin/dhcpleased/dhcpleased.c#L514][main​_dispatch​_engine()]] handles the messages sent by the
/engine/ process.
The /frontend/ process sends the =IMSG​_OPEN​_BPFSOCK= message using