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56b4067930
log.c provides functionality for associating a constant (typically a protocol constant) with a string and finding the string given the constant. However this is highly delicate code that is extremely prone to stack overflows and off-by-one's due to requiring the developer to always remember to update the array size constant and to do so correctly which, as shown by example, is never a good idea.b The original goal of this code was to try to implement lookups in O(1) time without a linear search through the message array. Since this code is used 99% of the time for debugs, it's worth the 5-6 additional cmp's worst case if it means we avoid explitable bugs due to oversights... Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
151 lines
4.9 KiB
C
151 lines
4.9 KiB
C
/*
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* OSPFd dump routine (parts used by ospfclient).
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* Copyright (C) 1999, 2000 Toshiaki Takada
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*
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* This file is part of FRRouting (FRR).
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*
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* FRR is free software; you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2, or (at your option) any later version.
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*
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* FRR is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <zebra.h>
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#include "log.h"
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#include "prefix.h"
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#include "ospf_dump_api.h"
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#include "ospfd.h"
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#include "ospf_asbr.h"
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#include "ospf_lsa.h"
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#include "ospf_nsm.h"
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#include "ospf_ism.h"
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const struct message ospf_ism_state_msg[] =
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{
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{ ISM_DependUpon, "DependUpon" },
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{ ISM_Down, "Down" },
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{ ISM_Loopback, "Loopback" },
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{ ISM_Waiting, "Waiting" },
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{ ISM_PointToPoint, "Point-To-Point" },
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{ ISM_DROther, "DROther" },
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{ ISM_Backup, "Backup" },
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{ ISM_DR, "DR" },
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{ 0 }
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};
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const struct message ospf_nsm_state_msg[] =
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{
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{ NSM_DependUpon, "DependUpon" },
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{ NSM_Deleted, "Deleted" },
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{ NSM_Down, "Down" },
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{ NSM_Attempt, "Attempt" },
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{ NSM_Init, "Init" },
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{ NSM_TwoWay, "2-Way" },
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{ NSM_ExStart, "ExStart" },
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{ NSM_Exchange, "Exchange" },
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{ NSM_Loading, "Loading" },
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{ NSM_Full, "Full" },
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{ 0 }
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};
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const struct message ospf_lsa_type_msg[] =
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{
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{ OSPF_UNKNOWN_LSA, "unknown" },
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{ OSPF_ROUTER_LSA, "router-LSA" },
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{ OSPF_NETWORK_LSA, "network-LSA" },
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{ OSPF_SUMMARY_LSA, "summary-LSA" },
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{ OSPF_ASBR_SUMMARY_LSA, "summary-LSA" },
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{ OSPF_AS_EXTERNAL_LSA, "AS-external-LSA" },
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{ OSPF_GROUP_MEMBER_LSA, "GROUP MEMBER LSA" },
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{ OSPF_AS_NSSA_LSA, "NSSA-LSA" },
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{ 8, "Type-8 LSA" },
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{ OSPF_OPAQUE_LINK_LSA, "Link-Local Opaque-LSA" },
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{ OSPF_OPAQUE_AREA_LSA, "Area-Local Opaque-LSA" },
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{ OSPF_OPAQUE_AS_LSA, "AS-external Opaque-LSA" },
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{ 0 }
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};
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const struct message ospf_link_state_id_type_msg[] =
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{
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{ OSPF_UNKNOWN_LSA, "(unknown)" },
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{ OSPF_ROUTER_LSA, "" },
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{ OSPF_NETWORK_LSA, "(address of Designated Router)" },
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{ OSPF_SUMMARY_LSA, "(summary Network Number)" },
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{ OSPF_ASBR_SUMMARY_LSA, "(AS Boundary Router address)" },
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{ OSPF_AS_EXTERNAL_LSA, "(External Network Number)" },
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{ OSPF_GROUP_MEMBER_LSA, "(Group membership information)" },
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{ OSPF_AS_NSSA_LSA, "(External Network Number for NSSA)" },
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{ 8, "(Type-8 LSID)" },
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{ OSPF_OPAQUE_LINK_LSA, "(Link-Local Opaque-Type/ID)" },
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{ OSPF_OPAQUE_AREA_LSA, "(Area-Local Opaque-Type/ID)" },
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{ OSPF_OPAQUE_AS_LSA, "(AS-external Opaque-Type/ID)" },
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{ 0 }
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};
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const struct message ospf_network_type_msg[] =
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{
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{ OSPF_IFTYPE_NONE, "NONE" },
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{ OSPF_IFTYPE_POINTOPOINT, "Point-to-Point" },
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{ OSPF_IFTYPE_BROADCAST, "Broadcast" },
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{ OSPF_IFTYPE_NBMA, "NBMA" },
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{ OSPF_IFTYPE_POINTOMULTIPOINT, "Point-to-MultiPoint" },
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{ OSPF_IFTYPE_VIRTUALLINK, "Virtual-Link" },
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{ 0 }
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};
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/* AuType */
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const struct message ospf_auth_type_str[] =
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{
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{ OSPF_AUTH_NULL, "Null" },
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{ OSPF_AUTH_SIMPLE, "Simple" },
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{ OSPF_AUTH_CRYPTOGRAPHIC, "Cryptographic" },
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{ 0 }
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};
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#define OSPF_OPTION_STR_MAXLEN 24
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char *
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ospf_options_dump (u_char options)
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{
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static char buf[OSPF_OPTION_STR_MAXLEN];
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snprintf (buf, OSPF_OPTION_STR_MAXLEN, "*|%s|%s|%s|%s|%s|%s|%s",
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(options & OSPF_OPTION_O) ? "O" : "-",
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(options & OSPF_OPTION_DC) ? "DC" : "-",
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(options & OSPF_OPTION_EA) ? "EA" : "-",
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(options & OSPF_OPTION_NP) ? "N/P" : "-",
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(options & OSPF_OPTION_MC) ? "MC" : "-",
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(options & OSPF_OPTION_E) ? "E" : "-",
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(options & OSPF_OPTION_MT) ? "M/T" : "-");
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return buf;
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}
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void
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ospf_lsa_header_dump (struct lsa_header *lsah)
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{
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const char *lsah_type = lookup_msg(ospf_lsa_type_msg, lsah->type, NULL);
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zlog_debug (" LSA Header");
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zlog_debug (" LS age %d", ntohs (lsah->ls_age));
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zlog_debug (" Options %d (%s)", lsah->options,
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ospf_options_dump (lsah->options));
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zlog_debug (" LS type %d (%s)", lsah->type,
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(lsah->type ? lsah_type : "unknown type"));
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zlog_debug (" Link State ID %s", inet_ntoa (lsah->id));
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zlog_debug (" Advertising Router %s", inet_ntoa (lsah->adv_router));
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zlog_debug (" LS sequence number 0x%lx", (u_long)ntohl (lsah->ls_seqnum));
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zlog_debug (" LS checksum 0x%x", ntohs (lsah->checksum));
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zlog_debug (" length %d", ntohs (lsah->length));
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}
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