diff options
Diffstat (limited to 'usr.sbin/bgpd')
| -rw-r--r-- | usr.sbin/bgpd/rde_update.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/usr.sbin/bgpd/rde_update.c b/usr.sbin/bgpd/rde_update.c index 80b73e2acbe..157dbc57941 100644 --- a/usr.sbin/bgpd/rde_update.c +++ b/usr.sbin/bgpd/rde_update.c @@ -1,4 +1,4 @@ -/* $OpenBSD: rde_update.c,v 1.64 2009/01/13 21:35:16 sthen Exp $ */ +/* $OpenBSD: rde_update.c,v 1.65 2009/03/13 04:18:12 claudio Exp $ */ /* * Copyright (c) 2004 Claudio Jeker <claudio@openbsd.org> @@ -917,13 +917,7 @@ up_dump_mp_unreach(u_char *buf, u_int16_t *len, struct rde_peer *peer) return (NULL); datalen += 3; /* afi + safi */ - if (datalen > 255) { - attrlen += 2 + datalen; - flags |= ATTR_EXTLEN; - } else { - attrlen += 1 + datalen; - buf++; - } + /* prepend header, need to do it reverse */ /* safi & afi */ buf[--wpos] = SAFI_UNICAST; @@ -933,11 +927,15 @@ up_dump_mp_unreach(u_char *buf, u_int16_t *len, struct rde_peer *peer) /* attribute length */ if (datalen > 255) { + attrlen += 2 + datalen; + flags |= ATTR_EXTLEN; wpos -= sizeof(u_int16_t); tmp = htons(datalen); memcpy(buf + wpos, &tmp, sizeof(u_int16_t)); - } else + } else { + attrlen += 1 + datalen; buf[--wpos] = (u_char)datalen; + } /* mp attribute */ buf[--wpos] = (u_char)ATTR_MP_UNREACH_NLRI; @@ -958,7 +956,7 @@ up_dump_mp_unreach(u_char *buf, u_int16_t *len, struct rde_peer *peer) /* total length includes the two 2-bytes length fields. */ *len = attrlen + 2 * sizeof(u_int16_t); - return (buf); + return (buf + wpos); } u_char * |