diff options
Diffstat (limited to 'contrib/bsnmp/snmp_mibII/mibII.c')
-rw-r--r-- | contrib/bsnmp/snmp_mibII/mibII.c | 83 |
1 files changed, 9 insertions, 74 deletions
diff --git a/contrib/bsnmp/snmp_mibII/mibII.c b/contrib/bsnmp/snmp_mibII/mibII.c index 96bd366..83e2317 100644 --- a/contrib/bsnmp/snmp_mibII/mibII.c +++ b/contrib/bsnmp/snmp_mibII/mibII.c @@ -48,8 +48,7 @@ static void *route_fd; /* if-index allocator */ static uint32_t next_if_index = 1; -/* re-fetch arp table */ -static int update_arp; +/* currently fetching the arp table */ static int in_update_arp; /* OR registrations */ @@ -911,36 +910,6 @@ mib_find_ifa(struct in_addr addr) } /* - * Process a new ARP entry - */ -static void -process_arp(const struct rt_msghdr *rtm, const struct sockaddr_dl *sdl, - const struct sockaddr_in *sa) -{ - struct mibif *ifp; - struct mibarp *at; - - /* IP arp table entry */ - if (sdl->sdl_alen == 0) { - update_arp = 1; - return; - } - if ((ifp = mib_find_if_sys(sdl->sdl_index)) == NULL) - return; - /* have a valid entry */ - if ((at = mib_find_arp(ifp, sa->sin_addr)) == NULL && - (at = mib_arp_create(ifp, sa->sin_addr, - sdl->sdl_data + sdl->sdl_nlen, sdl->sdl_alen)) == NULL) - return; - - if (rtm->rtm_rmx.rmx_expire == 0) - at->flags |= MIBARP_PERM; - else - at->flags &= ~MIBARP_PERM; - at->flags |= MIBARP_FOUND; -} - -/* * Handle a routing socket message. */ static void @@ -1080,46 +1049,12 @@ handle_rtmsg(struct rt_msghdr *rtm) } break; #endif - case RTM_GET: - mib_extract_addrs(rtm->rtm_addrs, (u_char *)(rtm + 1), addrs); - if (rtm->rtm_flags & RTF_LLINFO) { - if (addrs[RTAX_DST] == NULL || - addrs[RTAX_GATEWAY] == NULL || - addrs[RTAX_DST]->sa_family != AF_INET || - addrs[RTAX_GATEWAY]->sa_family != AF_LINK) - break; - process_arp(rtm, - (struct sockaddr_dl *)(void *)addrs[RTAX_GATEWAY], - (struct sockaddr_in *)(void *)addrs[RTAX_DST]); - } else { - if (rtm->rtm_errno == 0 && (rtm->rtm_flags & RTF_UP)) - mib_sroute_process(rtm, addrs[RTAX_GATEWAY], - addrs[RTAX_DST], addrs[RTAX_NETMASK]); - } - break; - case RTM_ADD: - mib_extract_addrs(rtm->rtm_addrs, (u_char *)(rtm + 1), addrs); - if (rtm->rtm_flags & RTF_LLINFO) { - if (addrs[RTAX_DST] == NULL || - addrs[RTAX_GATEWAY] == NULL || - addrs[RTAX_DST]->sa_family != AF_INET || - addrs[RTAX_GATEWAY]->sa_family != AF_LINK) - break; - process_arp(rtm, - (struct sockaddr_dl *)(void *)addrs[RTAX_GATEWAY], - (struct sockaddr_in *)(void *)addrs[RTAX_DST]); - } else { - if (rtm->rtm_errno == 0 && (rtm->rtm_flags & RTF_UP)) - mib_sroute_process(rtm, addrs[RTAX_GATEWAY], - addrs[RTAX_DST], addrs[RTAX_NETMASK]); - } - break; - case RTM_DELETE: mib_extract_addrs(rtm->rtm_addrs, (u_char *)(rtm + 1), addrs); - if (rtm->rtm_errno == 0 && !(rtm->rtm_flags & RTF_LLINFO)) + + if (rtm->rtm_errno == 0 && (rtm->rtm_flags & RTF_UP)) mib_sroute_process(rtm, addrs[RTAX_GATEWAY], addrs[RTAX_DST], addrs[RTAX_NETMASK]); break; @@ -1289,7 +1224,8 @@ update_ifa_info(void) /* * Update arp table - */ + * +*/ void mib_arp_update(void) { @@ -1305,11 +1241,11 @@ mib_arp_update(void) TAILQ_FOREACH(at, &mibarp_list, link) at->flags &= ~MIBARP_FOUND; - if ((buf = mib_fetch_rtab(AF_INET, NET_RT_FLAGS, RTF_LLINFO, &needed)) == NULL) { + if ((buf = mib_fetch_rtab(AF_INET, NET_RT_FLAGS, 0, &needed)) == NULL) { in_update_arp = 0; return; } - + next = buf; while (next < buf + needed) { rtm = (struct rt_msghdr *)(void *)next; @@ -1326,7 +1262,6 @@ mib_arp_update(void) at = at1; } mibarpticks = get_ticks(); - update_arp = 0; in_update_arp = 0; } @@ -1634,8 +1569,8 @@ mibII_idle(void) mib_arp_update(); mib_iflist_bad = 0; } - if (update_arp) - mib_arp_update(); + + mib_arp_update(); } |