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* Fix problems with handling of oversize BGP messagesex24bChris Hall2012-05-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The objective is to (as gracefully as possible) deal with outgoing UPDATE messages which simply do not in the maximum size BGP message. This can happen if very large AS_PATH or Community attributes come in, and are then extended. (Sending an UPDATE to an AS2 speaking peer can create a complete second copy of the AS_PATH !) Previous versions of Quagga would crash under these circumstances. Recent version were changed to tolerate and detect oversize messages. Any oversize message is logged as an error and discarded. This version will also withdraw prefixes if the selected route simply cannot be advertised. This version also corrects the handling of messages which are limited to the maximum BGP message size -- in particular UPDATE messages which carry a large number of IPv4/Unicast prefixes. (This was broken by the earlier efforts to handle oversize messages.) Changes in this commit: * update version to 0.99.20ex24b * where a set of attributes is too big to fit into a BGP message, or so big that not even one prefix will also fit into a BGP message, the following steps are now taken: - the BGP message is discarded and an error logged (as in other recent versions -- Quagga does not crash). - any prefixes which should have been advertised with the (broken) attributes will be withdrawn, if they have been advertised earlier with valid attributes. A further error is logged, listing the affected prefixes. - prefixes which are suppressed in this way are not counted as having been sent. At present there is no "show" command which will show which prefixes have been suppress -- TBA. * for all AFI/SAFI announce as many withdrawn prefixes as will fit in a BGP message. Previously, all AFI/SAFI other than IPv4/Unicast would send one withdrawn prefix per message. (This is still the case for announcements. It seems unlikely that many IPv6 prefixes will have the same attributes... so this does not seem worth fixing immediately.) * ensure that NOTIFICATION message cannot exceed the maximum length of a BGP message, no matter how much data is sent (!). * where IPv4/Unicast prefixes share the same attributes, they are now announced in the order received. Previously, when prefixes were added to the list hung off the 'struct bgp_advertise_attr', they were in LIFO order. * add SAFI name table. * log pthread attributes when creating a pthread. * fix scheduling of withdrawn prefixes to reduce number of BGP messages generated. Bug fixes: * fix discard of invalid IPv6 link-local nexthop (recent bug). * where amount of information that is put into a BGP message is limited by the maximum message size, fix so that this works again. (This was broken recently.) * set "Bottom of Stack" bit in MPLS VPN "tag" in MP_REACH and MP_UNREACH outgoing attributes.
* Remove a number of "assigned but unused" warnings and other WIPChris Hall2012-04-101-201/+1411
| | | | | | | | | | | | | | -Wunused-but-set-variable throws up a number of errors, this patch removes some of thos in bgpd, lib and zebra. Fix crash in vty when using ">*" /dev/null output pipe. Work in Progress (WIP): 1) adding "Watch-Dog" pthread to keep an eye on all other pthreads and state of mutexes etc. 2) creation of Integrated Configuration in vtysh.
* Reviewed and improved vty and (particularly) vtysh.Chris Hall2012-02-261-25/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * fix stream_put() to accept NULL src (again). * changed how vty terminal reports time-out and end-of-file, and made --more-- show the same as ordinary cli. * tighten on or two stream functions, to cope if for some reason the getp > endp or endp > size. * update documentation in vio_lines.c * fixed (potential) bug which would have tripped up --more-- if were to be required while outputting notification for a cancel operation. * as a new command loop is set up, make sure all start in vst_cmd_running_executing, so that output will be dispatched. * fix uty_std_out_push() and uty_vtysh_out_push to take notice of vst_cmd_running and vst_cmd_executing and change to vst_cmd_complete as required. * fix handling of hold_mark in VOUT_TERM obuf an line control. * fix various state related issues for vtysh server and the vtysh itself. * when vtysh connects to a daemon, the daemon responds with its name and version number. TBD: the vtysh to check that version is as expected ! * clarified handling of errors in vtysh... distinguishing errors reported by the client daemon, and errors in the mechanics of talking to the client daemon. ~
* vtysh partly restored. bgpd not crashing on over-size messages.Chris Hall2012-02-191-357/+589
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NB: this is a partial interim version -- NOT for production. Reinstate vtysh. In bgpd: cope better with generating oversize messages. The "pipework" branch is no more. There is now "euro_ix" and "euro_ix_b", where 'b' stands for 'bleedin'. The "pipework" is currently in 'bleedin'. Version updated to: 0.99.18ex20b Major changes in this commit: * modified bgpd to avoid crashing if an oversize message is created. At present, any oversize messages are simply discarded. This may be a mistake... since it is possible that some routes that should have been withdrawn are not. TBA. The stream lib facilities have been overhauled to may this easier. * restoring vtysh. At present the vtysh is thought to work, except that it does not currently create integrated configuration files. For the time being, *only* the following compile: lib, bgpd, zebra, vtysh, tests All other daemons will fail to compile, and must be disabled.
* Bring "ex" version up to date with 0.99.18ex15pChris Hall2011-03-291-1/+1
| | | | | | | | | Release: 0.99.18ex15p -- Pipework Branch Also fixes issue with unknown attributes -- does not release them prematurely. Contains the "bgpd: New show commands for improved view and address family support", which is post 0.99.18. (But not RFC 5082 GTSM.)
* Second tranche of updates for pipework branch.Chris Hall2011-02-131-6/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | modified: bgpd/bgp_connection.c modified: bgpd/bgp_debug.c modified: bgpd/bgp_engine.h modified: bgpd/bgp_main.c modified: bgpd/bgp_packet.c modified: bgpd/bgp_peer.c modified: bgpd/bgp_route.c modified: bgpd/bgp_routemap.c modified: bgpd/bgp_session.c modified: bgpd/bgp_vty.c modified: bgpd/bgpd.c modified: bgpd/bgpd.h modified: configure.ac modified: isisd/dict.h modified: isisd/isis_misc.c modified: isisd/isis_routemap.c modified: isisd/isis_spf.c modified: lib/Makefile.am modified: lib/command.c modified: lib/command.h modified: lib/command_execute.h modified: lib/command_parse.c modified: lib/command_parse.h modified: lib/command_queue.c modified: lib/command_queue.h modified: lib/elstring.h modified: lib/heap.c modified: lib/if.c modified: lib/if.h modified: lib/keychain.c modified: lib/keystroke.c modified: lib/keystroke.h modified: lib/list_util.c modified: lib/list_util.h modified: lib/log.c modified: lib/log.h modified: lib/memory.c modified: lib/memory.h modified: lib/memtypes.c modified: lib/misc.h modified: lib/mqueue.c modified: lib/mqueue.h deleted: lib/node_type.h modified: lib/pthread_safe.c modified: lib/qfstring.c modified: lib/qiovec.c modified: lib/qiovec.h modified: lib/qpath.c modified: lib/qpnexus.c modified: lib/qpnexus.h modified: lib/qpselect.c modified: lib/qpthreads.h modified: lib/qstring.c modified: lib/qstring.h modified: lib/qtime.c modified: lib/qtime.h modified: lib/qtimers.c modified: lib/qtimers.h modified: lib/routemap.c modified: lib/symtab.h modified: lib/thread.h deleted: lib/uty.h modified: lib/vector.c modified: lib/vector.h modified: lib/version.h.in modified: lib/vio_fifo.c modified: lib/vio_fifo.h modified: lib/vio_lines.c modified: lib/vio_lines.h modified: lib/vty.c modified: lib/vty.h modified: lib/vty_cli.c modified: lib/vty_cli.h modified: lib/vty_io.c modified: lib/vty_io.h modified: lib/vty_io_basic.c modified: lib/vty_io_basic.h modified: lib/vty_io_file.c modified: lib/vty_io_file.h modified: lib/vty_io_shell.c modified: lib/vty_io_term.c modified: lib/vty_io_term.h modified: lib/vty_local.h modified: lib/vty_pipe.c modified: lib/workqueue.h modified: lib/zebra.h modified: ospf6d/ospf6_lsa.c modified: ripngd/ripngd.c modified: tests/test-list_util.c modified: tests/test-vector.c modified: vtysh/vtysh.c modified: vtysh/vtysh_config.c
* Creation of pipework branchChris Hall2010-12-211-11/+11
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* First beta releaseChris Hall2010-04-061-6/+6
| | | | | | | Various bug fixes and improvements. Running with a fair amount of debug/assert code, which must be removed at some date.
* Get CLI thread and UI working properly. Sex commands according topaulo2009-12-151-2/+1
| | | | thread to run in. Add qlib_init stuff. Add -t parameter for "threaded".
* Fixes to get as far as creating the thread and calling qps_pselectpaulo2009-12-091-2/+1
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* Fix vtysh based "write term" output.Chris Caputo2009-06-231-0/+2
| | | | | | | | | * 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>
* 2005-04-07 Paul Jakma <paul.jakma@sun.com>quagga_post_listloop_cleanuppaul2005-04-071-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | * (global): Fix up list loops to match changes in lib/linklist, and some basic auditing of usage. * configure.ac: define QUAGGA_NO_DEPRECATED_INTERFACES * HACKING: Add notes about deprecating interfaces and commands. * lib/linklist.h: Add usage comments. Rename getdata macro to listgetdata. Rename nextnode to listnextnode and fix its odd behaviour to be less dangerous. Make listgetdata macro assert node is not null, NULL list entries should be bug condition. ALL_LIST_ELEMENTS, new macro, forward-referencing macro for use with for loop, Suggested by Jim Carlson of Sun. Add ALL_LIST_ELEMENTS_RO for cases which obviously do not need the "safety" of previous macro. LISTNODE_ADD and DELETE macros renamed to ATTACH, DETACH, to distinguish from the similarly named functions, and reflect their effect better. Add a QUAGGA_NO_DEPRECATED_INTERFACES define guarded section with the old defines which were modified above, for backwards compatibility - guarded to prevent Quagga using it.. * lib/linklist.c: fix up for linklist.h changes. * ospf6d/ospf6_abr.c: (ospf6_abr_examin_brouter) change to a single scan of the area list, rather than scanning all areas first for INTER_ROUTER and then again for INTER_NETWORK. According to 16.2, the scan should be area specific anyway, and further ospf6d does not seem to implement 16.3 anyway.
* 2005-03-14 Paul Jakma <paul.jakma@sun.com>paul2005-03-141-2/+2
| | | | | | | | | | * (global) update all c files to match the lib/vector.h rename of (struct vector).active to max, and vector_max macro to vector_active. * lib/vector.h: Rename to (struct vector).max to slightly less confusing active, for the number of active slots, distinct from allocated or active-and-not-empty. Rename vector_max to vector_active for same reason.
* * vtysh_config.c: Move password commands to the AAA_NODE. Ithasso2005-03-091-5/+6
| | | | | | | | quarantees that they will appear after SERVICE_NODE to make sure that encrypted passwords will work ("service password-encryption" command). [backport candidate]
* More cosmetical vtysh fixes.hasso2004-12-221-2/+6
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* No delimiter between "ip forwarding" and "ipv6 forwarding".hasso2004-12-221-1/+1
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* Vtysh compiles cleanly as well.hasso2004-10-071-6/+6
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* Big vtysh cleanup. See changelogs for details.hasso2004-10-031-50/+38
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* More vtysh fixes. Specifying configuration from command line works now.hasso2004-08-261-25/+13
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* Vtysh cleanup part 2. No any functional changes yet except VTYSH_INTERFACE.hasso2004-08-261-13/+22
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* Cleaning up whitespace mess mostly caused by my patches. Biggerhasso2004-08-251-6/+6
| | | | reorganization of this spagetti will follow soon.
* 2004-01-15 Paul Jakma <paul@dishone.st>paul2004-01-151-1/+1
| | | | * vtysh_config.c: Fix up strlen to use correct string.
* *** empty log message ***hasso2003-12-231-0/+2
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* See http://bugzilla.dishone.st/show_bug.cgi?id=13paul2003-03-281-3/+14
| | | | Fix from hasso tepper <hasso@linux.ee>
* Initial revisionpaul2002-12-131-0/+426