diff options
| author | Christos Longros <chris.longros@gmail.com> | 2026-04-17 18:32:01 +0000 |
|---|---|---|
| committer | Gleb Smirnoff <glebius@FreeBSD.org> | 2026-04-17 18:32:01 +0000 |
| commit | d9e7dd4a19b81a78a801973f8f5231f46a6d20b8 (patch) | |
| tree | eb6487514c341d3717d91f07b081f21fd10445c5 | |
| parent | 9a4a9f623bbaf991b3ba580593d47f2ee9f7b03b (diff) | |
carp: define CARP_AUTHLEN for carp_authlen field
Replace the bare 7 with a named constant.
| -rw-r--r-- | sys/netinet/ip_carp.c | 2 | ||||
| -rw-r--r-- | sys/netinet/ip_carp.h | 6 |
2 files changed, 7 insertions, 1 deletions
diff --git a/sys/netinet/ip_carp.c b/sys/netinet/ip_carp.c index 32823c6c4a87..9a97c1a19525 100644 --- a/sys/netinet/ip_carp.c +++ b/sys/netinet/ip_carp.c @@ -1216,7 +1216,7 @@ carp_send_ad_locked(struct carp_softc *sc) ch.carp_vhid = sc->sc_vhid; ch.carp_advbase = sc->sc_advbase; ch.carp_advskew = advskew; - ch.carp_authlen = 7; /* XXX DEFINE */ + ch.carp_authlen = CARP_AUTHLEN; ch.carp_pad1 = 0; /* must be zero */ ch.carp_cksum = 0; diff --git a/sys/netinet/ip_carp.h b/sys/netinet/ip_carp.h index 8d82286feb7d..97040403b41e 100644 --- a/sys/netinet/ip_carp.h +++ b/sys/netinet/ip_carp.h @@ -81,6 +81,12 @@ struct carp_header { CTASSERT(sizeof(struct carp_header) == 36); /* + * CARP authentication length in 32-bit chunks: + * counter[2] (8 bytes) + SHA1 HMAC (20 bytes) = 28 bytes = 7 chunks. + */ +#define CARP_AUTHLEN 7 + +/* * The VRRPv3 header layout is as follows: * See RFC9568, 5.1. VRRP Packet Format * |