CVS commit: [netbsd-10] src

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Fri Sep 13 14:17:26 UTC 2024

Modified Files:
        src/sys/netinet [netbsd-10]: if_arp.c
        src/tests/net/arp [netbsd-10]: t_arp.sh

Log Message:
Pull up following revision(s) (requested by ozaki-r in ticket #859):

        tests/net/arp/t_arp.sh: revision 1.47
        tests/net/arp/t_arp.sh: revision 1.48
        sys/netinet/if_arp.c: revision 1.315

arp: allow to send packets without an ARP resolution just after
receiving an ARP request

On receiving an ARP request, the current implemention creates an ARP
cache entry but with ND_LLINFO_NOSTATE.  Such an entry still needs
an ARP resolution to send back a packet to the requester.  The original
behavior before introducing the common ND framework didn't need the
resolution.  IPv6 doesn't as well.  To restore the original behavior,
make a new ARP cache entry with ND_LLINFO_STALE like IPv6 does.

tests: dedup t_arp.sh like others (NFC)

tests: add tests for ARP cache entry creations


To generate a diff of this commit:
cvs rdiff -u -r1.311.2.2 -r1.311.2.3 src/sys/netinet/if_arp.c
cvs rdiff -u -r1.45.6.1 -r1.45.6.2 src/tests/net/arp/t_arp.sh

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.