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2009-07-28bgpd: Allow inbound connections to non-default viewSteve Hill
* bgpd.c: (peer_lookup) Search through all BGP instances for matches, not just the default instance, if no specific instance is given. (peer_lookup_with_open) same.
2009-07-28bgpd: fd leak in bgpdSteve Hill
* bgp_fsm.c: I have found an fd leak in bgpd that is caused by the 'new' Clearing state. I've been seeing it from hold timer failures, but it can also be triggered by other things. When Hold_Timer_expired fires in Established state, a notify is sent and BGP_Stop event queued. The fsm then transitions into Clearing state. That is the problem; When the BGP_Stop event is serviced, the state table says to ignore it while in Clearing. Thus bgp_stop is not called and the fd leaks. Previously the peer would be in Idle state, which correctly handles the BGP_Stop event. Fix by making bgp_stop safe to call from Clearing state, without losing ClearingCompleted events, and then ensuring it is called prior to transition from Clearing->Idle.
2009-07-28[zebra] Fix crash in test_zebraPaul Jakma
* kernel_null.c: we're pretending to add an address, so set IFC_REAL. If this isn't done, calling into the 'got address from kernel' half of zebra will implicitly-withdraw the ifc, which could cause a crash in test_zebra.c.
2009-07-28Merge remote branch 'origin/master'Paul Jakma
2009-07-28bgpd: Delete AS_CONFED_SEQUENCE when prepending an AS_SEQUENCE type segmentVasilis Tsiligiannis
AS_CONFED_SEQUENCE segment should always be deleted when prepending (e.g. with a route-map) an AS_SEQUENCE segment to an AS path. Otherwise, AS_CONFED_SEQUENCE will not be deleted later when updating EBGP peers (since it is not the leftmost segment) and will leak outside the confederation.
2009-07-28bgpd: Implement BGP confederation error handling (RFC5065, Par. 5)Vasilis Tsiligiannis
This patch implements BGP confederation error handling in Quagga as described in RFC5065, paragraph 5. * bgp_aspath.c: (aspath_confed_check, aspath_left_confed_check) new functions * bgp_attr.c: (bgp_attr_aspath_check) apply previous and NOTIFY if there's a problem.
2009-07-28[global] interface flags format warningsStephen Hemminger
*/*: ifp->flags is 64 bit unsigned which can not be handled by %l on 32 bit architectures - requires %ll and the appropriate cast.
2009-07-28bgpd: start listener on first instanceStephen Hemminger
Start BGP listener only after first instance is started. This helps the security if BGP is not used but daemon is started. It also addresses some issues like MD5 not working on listener unless IPV6 configured (because listener was not in list); as well as compiler warnings. * bgp_network.c: (bgp_listener) listen socket creation consolidated here (bgp_socket) Use bgp_listener * bgpd.c: (bgp_get) call bgp_socket on creation of first struct bgp. (bgp_init) remove bgp_socket call. * memtypes.c: Add MTYPE_BGP_LISTENER
2009-07-28bgpd: peer action table static/constStephen Hemminger
bgpd.c: (various tables) only used in one place and are immutable.
2009-07-27ripd: set IP TOS for control socketStephen Hemminger
* ripd.c: (rip_create_socket) RIP packets should go out with Type Of Service (DSCP) set to Internet control (like OSPF and BGP).
2009-07-27[bgpd] Restore ability of 'neighbor ... update-source' to take interface namePaul Jakma
* bgp_vty.c: (BGP_UPDATE_SOURCE_STR) Restore ability to accept arbitrary interface names for the 'neighbor ... update-source' command - shouldn't have been deleted. (BGP_UPDATE_SOURCE_STR) Add help for same.
2009-07-24[zebra] do not touch socket before pidfile lockingDenis Ovsienko
Move zserv socket creation code into zebra_zserv_socket_init() and call it only after pidfile lock has been acquired exclusively. This keeps subsequent zebra daemons from deleting the working socket of an already running process (bug #403).
2009-07-21[doc] zebra.8 via Christian Hammers (#531)Thijs Kinkhorst
The man page for zebra(8) mentions as port number to connect to 2602, but it's acutally 2601 (as shown in /etc/services). 2602 belongs to ripd. Attached patch fixes this typo.
2009-07-21[build] Bump release to 0.99.14Paul Jakma
2009-07-21[bgp] Fix nexthop reachability check on confederationsVasilis Tsiligiannis
* bgp_route.c: (bgp_update_main) Nexthop reachability should be checked for confederations too in case a prefix is received from more than one confederation peers.
2009-07-21[bgpd] fix typo made by paul in previous commitPaul Jakma
2009-07-21[bgpd] Avoid zombie accepted peer entriesTimo Teräs
Currently, when accepting the connection, it can be left as zombie, when the peer just initiates a connection, but never sends data (and the TCP connection end packets are lost). This happens because for accepted connections a temporary new peer entry is created until OPEN message is exchanged, and this temporary peer entry does not get the hold time parameter set at all. * bgp_network.c: (bgp_accept) Set hold time and keepalive values for ACCEPT peers.
2009-07-21[bgpd] Small buffer overrun in bgp_clear_node_queue_initNick Hilliard
* bgp_route.c: (bgp_clear_node_queue_init) fix buffer overrun.
2009-07-21[zebra] Silence noisy process_subqChris Caputo
zebra_rib.c: process_subq(): #ifdef out debug code.
2009-07-19[bgpd] Stability fixes including bugs 397, 492Chris Caputo
I've spent the last several weeks working on stability fixes to bgpd. These patches fix all of the numerous crashes, assertion failures, memory leaks and memory stomping I could find. Valgrind was used extensively. Added new function bgp_exit() to help catch problems. If "debug bgp" is configured and bgpd exits with status of 0, statistics on remaining lib/memory.c allocations are printed to stderr. It is my hope that other developers will use this to stay on top of memory issues. Example questionable exit: bgpd: memstats: Current memory utilization in module LIB: bgpd: memstats: Link List : 6 bgpd: memstats: Link Node : 5 bgpd: memstats: Hash : 8 bgpd: memstats: Hash Bucket : 2 bgpd: memstats: Hash Index : 8 bgpd: memstats: Work queue : 3 bgpd: memstats: Work queue item : 2 bgpd: memstats: Work queue name string : 3 bgpd: memstats: Current memory utilization in module BGP: bgpd: memstats: BGP instance : 1 bgpd: memstats: BGP peer : 1 bgpd: memstats: BGP peer hostname : 1 bgpd: memstats: BGP attribute : 1 bgpd: memstats: BGP extra attributes : 1 bgpd: memstats: BGP aspath : 1 bgpd: memstats: BGP aspath str : 1 bgpd: memstats: BGP table : 24 bgpd: memstats: BGP node : 1 bgpd: memstats: BGP route : 1 bgpd: memstats: BGP synchronise : 8 bgpd: memstats: BGP Process queue : 1 bgpd: memstats: BGP node clear queue : 1 bgpd: memstats: NOTE: If configuration exists, utilization may be expected. Example clean exit: bgpd: memstats: No remaining tracked memory utilization. This patch fixes bug #397: "Invalid free in bgp_announce_check()". This patch fixes bug #492: "SIGBUS in bgpd/bgp_route.c: bgp_clear_route_node()". My apologies for not separating out these changes into individual patches. The complexity of doing so boggled what is left of my brain. I hope this is all still useful to the community. This code has been production tested, in non-route-server-client mode, on a linux 32-bit box and a 64-bit box. Release/reset functions, used by bgp_exit(), added to: bgpd/bgp_attr.c,h bgpd/bgp_community.c,h bgpd/bgp_dump.c,h bgpd/bgp_ecommunity.c,h bgpd/bgp_filter.c,h bgpd/bgp_nexthop.c,h bgpd/bgp_route.c,h lib/routemap.c,h File by file analysis: * bgpd/bgp_aspath.c: Prevent re-use of ashash after it is released. * bgpd/bgp_attr.c: #if removed uncalled cluster_dup(). * bgpd/bgp_clist.c,h: Allow community_list_terminate() to be called from bgp_exit(). * bgpd/bgp_filter.c: Fix aslist->name use without allocation check, and also fix memory leak. * bgpd/bgp_main.c: Created bgp_exit() exit routine. This function frees allocations made as part of bgpd initialization and, to some extent, configuration. If "debug bgp" is configured, memory stats are printed as described above. * bgpd/bgp_nexthop.c: zclient_new() already allocates stream for ibuf/obuf, so bgp_scan_init() shouldn't do it too. Also, made it so zlookup is global so bgp_exit() can use it. * bgpd/bgp_packet.c: bgp_capability_msg_parse() call to bgp_clear_route() adjusted to use new BGP_CLEAR_ROUTE_NORMAL flag. * bgpd/bgp_route.h: Correct reference counter "lock" to be signed. bgp_clear_route() now accepts a bgp_clear_route_type of either BGP_CLEAR_ROUTE_NORMAL or BGP_CLEAR_ROUTE_MY_RSCLIENT. * bgpd/bgp_route.c: - bgp_process_rsclient(): attr was being zero'ed and then bgp_attr_extra_free() was being called with it, even though it was never filled with valid data. - bgp_process_rsclient(): Make sure rsclient->group is not NULL before use. - bgp_processq_del(): Add call to bgp_table_unlock(). - bgp_process(): Add call to bgp_table_lock(). - bgp_update_rsclient(): memset clearing of new_attr not needed since declarationw with "= { 0 }" does it. memset was already commented out. - bgp_update_rsclient(): Fix screwed up misleading indentation. - bgp_withdraw_rsclient(): Fix screwed up misleading indentation. - bgp_clear_route_node(): Support BGP_CLEAR_ROUTE_MY_RSCLIENT. - bgp_clear_node_queue_del(): Add call to bgp_table_unlock() and also free struct bgp_clear_node_queue used for work item. - bgp_clear_node_complete(): Do peer_unlock() after BGP_EVENT_ADD() in case peer is released by peer_unlock() call. - bgp_clear_route_table(): Support BGP_CLEAR_ROUTE_MY_RSCLIENT. Use struct bgp_clear_node_queue to supply data to worker. Add call to bgp_table_lock(). - bgp_clear_route(): Add support for BGP_CLEAR_ROUTE_NORMAL or BGP_CLEAR_ROUTE_MY_RSCLIENT. - bgp_clear_route_all(): Use BGP_CLEAR_ROUTE_NORMAL. Bug 397 fixes: - bgp_default_originate() - bgp_announce_table() * bgpd/bgp_table.h: - struct bgp_table: Added reference count. Changed type of owner to be "struct peer *" rather than "void *". - struct bgp_node: Correct reference counter "lock" to be signed. * bgpd/bgp_table.c: - Added bgp_table reference counting. - bgp_table_free(): Fixed cleanup code. Call peer_unlock() on owner if set. - bgp_unlock_node(): Added assertion. - bgp_node_get(): Added call to bgp_lock_node() to code path that it was missing from. * bgpd/bgp_vty.c: - peer_rsclient_set_vty(): Call peer_lock() as part of peer assignment to owner. Handle failure gracefully. - peer_rsclient_unset_vty(): Add call to bgp_clear_route() with BGP_CLEAR_ROUTE_MY_RSCLIENT purpose. * bgpd/bgp_zebra.c: Made it so zclient is global so bgp_exit() can use it. * bgpd/bgpd.c: - peer_lock(): Allow to be called when status is "Deleted". - peer_deactivate(): Supply BGP_CLEAR_ROUTE_NORMAL purpose to bgp_clear_route() call. - peer_delete(): Common variable listnode pn. Fix bug in which rsclient was only dealt with if not part of a peer group. Call bgp_clear_route() for rsclient, if appropriate, and do so with BGP_CLEAR_ROUTE_MY_RSCLIENT purpose. - peer_group_get(): Use XSTRDUP() instead of strdup() for conf->host. - peer_group_bind(): Call bgp_clear_route() for rsclient, and do so with BGP_CLEAR_ROUTE_MY_RSCLIENT purpose. - bgp_create(): Use XSTRDUP() instead of strdup() for peer_self->host. - bgp_delete(): Delete peers before groups, rather than after. And then rather than deleting rsclients, verify that there are none at this point. - bgp_unlock(): Add assertion. - bgp_free(): Call bgp_table_finish() rather than doing XFREE() itself. * lib/command.c,h: Compiler warning fixes. Add cmd_terminate(). Fixed massive leak in install_element() in which cmd_make_descvec() was being called more than once for the same cmd->strvec/string/doc. * lib/log.c: Make closezlog() check fp before calling fclose(). * lib/memory.c: Catch when alloc count goes negative by using signed counts. Correct #endif comment. Add log_memstats_stderr(). * lib/memory.h: Add log_memstats_stderr(). * lib/thread.c: thread->funcname was being accessed in thread_call() after it had been freed. Rearranged things so that thread_call() frees funcname. Also made it so thread_master_free() cleans up cpu_record. * lib/vty.c,h: Use global command_cr. Add vty_terminate(). * lib/zclient.c,h: Re-enable zclient_free().
2009-07-19[bgpd] Fix compiler warnings related to MD5Chris Caputo
This patch fixes: bgp_network.c: In function 'bgp_md5_set': bgp_network.c:107: warning: cast from pointer to integer of different size bgp_network.c: In function 'bgp_socket': bgp_network.c:447: warning: cast to pointer from integer of different size
2009-07-19[build] fix default CFLAGS and squish warningPaul Jakma
* configure.ac: Move down the AC_SYS_LARGEFILE test - it was setting CFLAGS and so disabling the default CFLAGS setting section. Squish warning by adding AC_CONFIG_MACRO_DIR on the reccommendation of autoreconf.
2009-07-17[bgpd] Bug #533: Fix crash with copy/pasted commands, inc 'no bgp ...'Paul Jakma
* bgpd.c: Removal of (struct bgp *) from the master list was being left to bgp_free time. This meant there was a window of time between bgp_delete and refcounts hitting 0 (e.g. routes to be processed) where bgp_lookup's could return a deleted (struct bgp *). (bgp_delete) This is the logical place where a (struct bgp *) should lose its visibility, so move the deletion from the bgp-master list to here, from bgp_free. Many thanks to Fritz Reichmann for his thorough debugging of the problem and testing of fixes and Chris Caputo for his further analysis.
2009-07-16[lib] Fix IPv6 normalisationStephen Hemminger
* lib/sockunion.c: (sockunion_normalise_mapped) The code to normalize address was not copying port value - probably reason why IPV4 in IPV6 never worked right.
2009-07-16[ospf6d] Fix regression in monotonic time patch - LSA max-aging brokeTom Henderson
* ospf6_lsa.c: (ospf6_lsa_premature_aging) set age to MAX_AGE - don't rely on 0 magically meaning same. (ospf6_lsa_age_current) handle MAXAGE.
2009-06-30[lib/cleanup] Use a typedef for the thread typePaul Jakma
* lib/thread.{c,h}: As per subject. This will avoid head-scratching for next person who adds a thread-type and gets strange breakage.
2009-06-26[ospfd] Do not use stale Network/Router LSAsJoakim Tjernlund
Should a self originated Network/Router LSA with higher LS seq. nr. be received we should flood and install it in the LSDB but we cannot use it for our internal calculations as it is stale. Reorginate an new LSA to replace the stale one as soon as possible.
2009-06-26[bgpd] Log a debug/update warning if filters are configured but don't existPaul Jakma
* bgp_route.c: (bgp_{input,output}_filter) Log a debug warning if a route is received or sent and a filter name is configured for a prefix, as or distribute list but none is found - guaranteed configuration mistake.
2009-06-25Add test for Internet checksum.Joakim Tjernlund
Add 2 impl. of the Internet Checksum. One new optimized nad one form RFC 1071. Turns out that the current Quagga in_cksum() is buggy. On Big Endian routers it miscalculates odd sized buffers.
2009-06-25[ospfd] compare ifIndex too when matching pathsJoakim Tjernlund
ospf_path_lookup(), ospf_route_match_same() and ospf_ase_route_match_same() needs to compare if the interface matches too.
2009-06-25[doc] Add "--disable-doc" to configureJoakim Tjernlund
Configure option "--disable-doc" will prevent building the documents under doc. Saves build time and the need to have document building tools installed. Useful when your build machine is different from your development machine.
2009-06-25[ospfd] external LSA route_unlock_node() fixesJoakim Tjernlund
A few route_unlock_node() calls was missing.
2009-06-25[ospfd] Fix a few LSA performance "bugs"Joakim Tjernlund
ospf_lsa_install() will calculate LSA checksum so no need to do it before calling ospf_lsa_install(). Set the OSPF_LSA_SELF_CHECKED flag on own LSA's to save ospf_lsa_is_self_originated() some work. Do not memset() memory that is about to overwritten with memcpy().
2009-06-24Merge remote branch 'origin/master'Paul Jakma
2009-06-24zebra: Static route does not reach kernel.Joakim Tjernlund
A static route like below: ip route 172.16.1.0/30 192.168.101.162 11 does not move properly to a new interface when the interface used goes down. Zebra reports that it have moved but kernel isn't informed so the route is lost. * zebra_rib.c: (nexthop_active_update) if ifindex has changed, then the route should be considered to have changed. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
2009-06-24[vtysh] Save vtysh history to a fileTomasz Pala
vtsh_main.c: save 1000 last lines of history to $HOME/.history_quagga (the file must be created by hand first, this is intended behaviour)
2009-06-24[configure] Allow for large-file support, e.g. for log files >2GBTomasz Pala
2009-06-24[cleanup] Add log.h includesTomasz Pala
2009-06-24[bgpd] Add 'show ip bgp view WORD neighbors IP (advertised|received)-routes'Tomasz Pala
* bgp_route.c: Was missing these commands.
2009-06-24[ospfd] discount IP header size from a new LSA pktDmitry Tejblum
2009-06-23[bgpd] review 32-bit AS-path hotfix for 0.99.12Denis Ovsienko
The patch by Chris Caputo, which was used to prepare 0.99.12 release, consists of three parts: 1. memory allocation fix itself 2. fix for warnings about constant variables 3. fix for printf format specs (%d was used instead of %u) It was confirmed later, that: a. a much simpler bugfix was available for memory allocation b. committed version of the bugfix wasn't optimal CPU-wise At this point I consider reasonable to revert the allocation portion of that patch and to replace it with the shorter version, which is: -#define ASN_STR_LEN (5 + 1) +#define ASN_STR_LEN (10 + 1) Other two parts of Mr. Caputo's patch remain intact.
2009-06-23[zebra] linux policy routing support with ipv6Mathieu Goessens
Quagga support linux policy routing (ip route ... table $X) with zebra.conf table $X option. It works fine on ipv4. On ipv6 the parameter is ignored (table 0 is used). * zebra/...: Pass appropriate table arg to rib_{add,delete}_ipv6
2009-06-23Merge remote branch 'origin/master'Paul Jakma
2009-06-23[trivia] work around ksh93 builtin name (#451)Jingjing Duan
ksh93 script cannot have 'stop' functions w/o cancelling existing definition first. Fixed.
2009-06-23Fix "show ip bgp dampened-paths" garbage output.Chris Caputo
* bgpd/bgp_damp.c: Make bgp_damp_reuse_time_vty() accept a buffer and length, rather than returning a local var buffer whose contents can get trounced. Remove duplicate BGP_UPTIME_LEN define. * bgpd/bgp_damp.h: bgp_damp_reuse_time_vty() prototype change. * bgpd/bgp_route.c: Provide bgp_damp_reuse_time_vty() with a buffer and length. Remove duplicate BGP_UPTIME_LEN define. This problem was noticed in 2005... http://hibernia.jakma.org/~paul/patches/quagga-test.diff ...but the fix didn't make it into the code. Signed-off-by: Chris Caputo <ccaputo@alt.net>
2009-06-23Fix vtysh based "write term" output.Chris Caputo
* vtysh/vtysh.c: "end" should be printed at the bottom, not the top. * vtysh/vtysh_config.c: PROTOCOL_NODE was not being handled, and thus was being displayed at the top of a config, rather than in its rightful place near the bottom. Signed-off-by: Chris Caputo <ccaputo@alt.net>
2009-06-23Fixes to RFC2385/MD5 BGPChris Caputo
* bgpd/bgp_network.c: Fix MD5 listen in IPv4 version of bgp_socket() by adding listen socket to listen_sockets list so that MD5 passwords can get set. * lib/sockopt.c: (sockopt_tcp_signature) Fix bogus "% Error while applying TCP-Sig to session(s)" / "can't set TCP_MD5SIG option" startup error messages by not returning error when there isn't one.
2009-06-23[ospfd] cancel OSPF timer hack in nsm_change_stateDmitry Tejblum
This piece of code causes all Quagga routers on a broadcast link to send a HELLO packet simultaneously if they see a new neighbor. It also resets the HELLO timer, so all the quagga routers will continue to send HELLO packets simultaneously in the future. This is not good (especially on networks with a lot of Quagga routers connected), and is explicitly discouraged by the OSPF standard, RFC 2328 (chapter 4.4.Timers). I suggest to remove the code snippet, it does not provide much benefit anyway.
2009-06-23RFC 4191 Default Router Preference support for router advertisementsChris Caputo
Adds "ipv6 nd router-preference (high|medium|low)" and "no ipv6 nd router-preference" interface commands. Files modified: doc/ipv6.texi zebra/interface.c zebra/interface.h zebra/rtadv.c zebra/rtadv.h Signed-off-by: Chris Caputo <ccaputo@alt.net>
2009-06-22[doc] remove -dither arg to imagemagick, in building PDFsPaul Jakma
* doc/Makefile.am: arguments for the 'convert' programme seem to have changed incompatibly at some stage - just remove the problematic -dither.