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2012-05-22bgpd: optimize bgp_aggregate_[increment|decrement]()Jorge Boncompte [DTI2]
If there were no aggregates configured this functions were allocating and freeing a struct bgp_node for every call, and it's called for every prefix received. * bgp_route.c: Bail out early if the there are no aggregates configured. Change from bgp_node_get() to bgp_node_lookup() that does not allocate a new struct bgp_node if not found. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2012-05-22bgpd: optimize bgp_update_main() in the soft_reconfig caseJorge Boncompte [DTI2]
Avoids 3 checks per call. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2012-05-22bgpd: Remove useless initializationJorge Boncompte [DTI2]
It's initialized below Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2012-05-22bgpd: reduce struct attr_extra allocations/freeingJorge Boncompte [DTI2]
Try to use on stack structs for temporary uses. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2012-05-22bgpd: fix struct attr_extra leak in bgp_default_originate()Jorge Boncompte [DTI2]
The call to bgp_attr_default_set() above creates the attr_extra struct, but the attr.extra = NULL initialization was leaking it. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2012-05-22bgpd: remove some useless initializationsJorge Boncompte [DTI2]
* bgp_attr.c: (bgp_attr_default_intern) bgp_attr_default_set() already initializes the memory. Fixes a struct attr_extra leak. * bgp_route.c: Remove useless on stack struct initializations. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2012-05-22bgpd: optimize bgp_info_cmp()Jorge Boncompte [DTI2]
* bgp_route.c: (bgp_info_cmp) Reduce indirections, precalculate some values that are used several times, reduce conditionals. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2012-05-22bgpd: remove calls to peer_sort() from fast-pathJorge Boncompte [DTI2]
peer_sort() it's called so much as to be annoying. In the assumption that the 'sort' of the peer doesn't change during an established session, I have changed all calls to peer_sort() in the 'fast-path' to only check the 'sort'. All the calls from the vty and such still recalculate the sort and store it in the peer. There's a lot of other calls to peer_sort() that could be changed but some maube tricky, someone more knowledgeable may try to reduce them. This hits peer_sort() from 5th out of the stadium^H^H list on a full internet table loading profiling session. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2012-05-22bgpd: optimize bgp_nexthop_self()Jorge Boncompte [DTI2]
This function scores 2nd, profiling a full internet table load. It's called for every prefix received. Instead of looping in the interface lists comparing addresses use a hash to mantain them. * bgpd.c: Init the own address hash. * bgp_nexthop.c: Introduce methods to maintain an own address hash. (bgp_connected_add) add addresses to the hash. (bgp_connected_delete) delete addresses from the hash. (bgp_nexthop_self) lookup addresses in the hash. Removed the unused afi_t parameter. * bgp_route.c: (bgp_update_main) Micro-optimization, rearranged condition to not lookup the hash for bogus nexthops (0.0.0.0 or a class D/E address) Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2012-05-21bgpd: fix crash with vpnv4 soft-reconfigurationJorge Boncompte [DTI2]
bgp_afi_node_get() expects a non-NULL prd for a SAFI_MPLS_VPN prefix. * bgp_route.c: pass down the struct prefix_rd from bgp_soft_reconfig_in() and bgp_soft_reconfig_rsclient(). Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2012-05-02bgpd: Fix memory leak of some "show ip bgp neighbor" commandsJorge Boncompte [DTI2]
sockunion_str2su() use is prone to memory leaks. Remove it's use all over the code. At least these commands leaked a sockunion union: - show ip bgp vpnv4 ... routes - show ip bgp ... received prefix-filter Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David Lamparter <equinox@diac24.net>
2012-05-02bgpd, zebra: Fix format for some metric outputsJorge Boncompte [DTI2]
Metrics are unsigned values. * bgpd/bgp_{debug,route,vty}.c, * zebra/zebra_vty.c: replace %d with %u for metrics & distances Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> [reworded commit message] Signed-off-by: David Lamparter <equinox@diac24.net>
2012-04-09Merge branch 'quagga' into google-bgp-multipathAvneesh Sachdev
Conflicts: bgpd/bgp_route.c
2012-01-23bgpd: Addition of ipv6 network command in Multicast address family mode.G.Balaji
The patch adds the ipv6 network command in the BGP multicast address family mode.
2012-01-23bgpd: IPv4 MP-BGP Routes addition and deletionG.Balaji
This patch contains the following: 1. Addition of IPv4 SAFI_MULTICAST BGP routes into the BGP Multicast RIB. 2. Deletion of IPv4 SAFI_MULTICAST BGP routes from the BGP Multicast RIB.
2012-01-08bgpd: touch nexthop handling codeDenis Ovsienko
bgp_nexthop_lookup_ipv6(): declare variables where they are actually used, drop no-op initialization (the field is already 0) bgp_nexthop_lookup(): ditto bgp_nexthop_check_ebgp(): rename to bgp_nexthop_onlink() bgp_nexthop_cache_changed(): rename to bgp_nexthop_cache_different()
2012-01-02bgpd: justify checks for IPv4 class D/EDenis Ovsienko
* lib/prefix.h * IPV4_CLASS_DE(): make consistent with counterpart macros * bgp_packet.c * bgp_open_receive(): test using macro instead of ">=" * bgp_route.c * bgp_update_rsclient(): idem * bgp_update_main(): idem
2011-12-18fix set never used warningsStephen Hemminger
(This patch was modified to leave calls to stream_getl() in place, they are necessary for the stream's internal pointer to advance to the correct position. -- Denis) Signed-off-by: Denis Ovsienko <infrastation@yandex.ru> Fix gcc warnings about varables that are set but never used. * bgpd/bgp_attr.c * cluster_unintern(): ret * transit_unintern(): ret * bgp_attr_default_intern(): attre * bgp_mp_reach_parse(): rd_high, rd_low * bgpd/bgp_route.c * bgp_announce_check_rsclient(): bgp * bgpd/bgp_zebra.c * zebra_read_ipv4(): ifindex * zebra_read_ipv6(): ifindex * bgpd/bgpd.c * bgp_config_write_peer(): filter * lib/distribute.c * distribute_list_all(): dist * distribute_list(): dist * distribute_list_prefix_all(): dist * distribute_list_prefix(): dist * lib/if_rmap.c * if_rmap(): if_rmap * lib/vty.c * vty_accept(): vty * lib/zclient.c * zclient_read(): ret * zebra/irdp_interface.c * if_group(): zi * zebra/rt_netlink.c * kernel_read(): ret, sock
2011-12-06bgpd: store nexthop info for redistributed IPV6 routesStephen Hemminger
BGP was ignoring nexthop info for static and other redistributed routes for IPv6. Build extra attribute info to store the nexthop. See also: https://bugzilla.vyatta.com/show_bug.cgi?id=6073
2011-09-29bgpd: more SAFI fixesDenis Ovsienko
(with resolved conflict in bgpd/bgp_packet.c) Two macros resolving to the same integer constant broke a case block and a more thorough merge of BGP_SAFI_VPNV4 and BGP_SAFI_VPNV6 was performed. * bgpd.h: MPLS-labeled VPN SAFI is AFI-independent, switch to single * macro * bgp_capability_test.c: update test data * bgp_mp_attr_test.c: idem * bgp_route.c: (bgp_maximum_prefix_overflow, bgp_table_stats_vty) update macro and check conditions (where appropriate) * bgp_packet.c: (bgp_route_refresh_send, bgp_capability_send, bgp_update_receive, bgp_route_refresh_receive): idem * bgp_open.c: (bgp_capability_vty_out, bgp_afi_safi_valid_indices, bgp_open_capability_orf, bgp_open_capability): idem * bgp_attr.c: (bgp_mp_reach_parse, bgp_packet_attribute, bgp_packet_withdraw): idem
2011-09-29bgpd: fix SAFI for for MPLS labeled VPN-IPv6Denis Ovsienko
* bgpd.h: change value of BGP_SAFI_VPNV6 to 128 (RFC4659, BZ#659) * bgp_route.c: (bgp_table_stats_vty) fix length argument to strncmp()
2011-07-29Merge branch 'attr-errors'Paul Jakma
Contains BGP fixes: - set extcommunity crash: tihs patch tries to make the refcounting more robust but does not fully solve the problem, sadly. - BGP attribute error handling: Little testing.
2011-07-20bgpd: When advertising a multipath route, the attribute set to beJosh Bailey
advertised is based on the bestpath attribute set, but the following attributes are aggregated from the attribute sets of the multipath constituents: - AS_PATH - ORIGIN - COMMUNITIES - EXTENDED COMMUNITIES In addition the route is advertised with the NEXT_HOP set to the router's interface IP address, instead of the NEXT_HOP of the best path. This is to ensure that traffic will go to this router so it can be fanned out via the multipath route. * bgpd/ecommunity.c * ecommunity_uniq_sort(): Make this function externally accessible * bgpd/ecommunity.h * Add external declaration for ecommunity_uniq_sort() * bgpd/bgp_mpath.c * bgp_info_nexthop_cmp(): Replace calls to bgp_attr_extra_get() to avoid unwanted memory allocation * bgp_info_mpath_free(): Free aggregate attribute for multipath * bgp_info_mpath_attr(): Lookup aggregate attribute of a multipath route * bgp_info_mpath_attr_set(): Set aggregate attribute of a multipath route * bgp_info_mpath_aggregate_update(): Update the aggregate attribute of a multipath route * bgpd/bgp_mpath.h * bgp_info_mpath: Add pointer to hold aggregate attribute of a multipath * Add external declarations for new functions * bgpd/bgp_route.c * bgp_announce_check(): Use aggregate attribute when announcing multipath route * bgp_announce_check_rsclient(): Use aggregate attribute when announcing multipath route * bgp_best_selection(): After updating multipath set, update the multipath aggregate attribute
2011-07-20bgpd: For deterministic MED build a multipath set for each peer AS as theJosh Bailey
first stage of the best path calculation. The second stage then selects a winner from each peer AS's best path. In the second stage we clear multipath set of the non-selected best paths via bgp_mp_dmed_deselect(). Since the multipath set is already marked up for the winning path, we don't call bgp_info_mpath_update() after the second stage calculation. * bgpd/bgp_mpath.c * bgp_mp_dmed_deselect(): New function to cleanup the multipath markup if a DMED selected path loses in stage 2 of the best path calculation * bgpd/bgp_mpath.h * Add external declaration of bgp_mp_dmed_deselect() * bgpd/bgp_route.c * bgp_best_selection(): If multipath is enabled, build up the mp_list for the current peer AS, and do the RIB markup the best path from that AS. In the second stage, clear the RIB markup for the DMED selected path if it is not selected as best. Only call bgp_info_mpath_update() in the second stage when not doing deterministic MED.
2011-07-20bgpd: Modify the BGP to zebra route announcement to support multipathJosh Bailey
routes. Use a growable buffer (bgp_nexthop_buf) to collect nexthops that are included in the announcement. Use the BGP_INFO_MULTIPATH_CHG flag to trigger zebra announcement so zebra will be updated if the multipath set changes. Display all multipath nexthops in 'debug bgp zebra' output. * bgpd/bgp_main.c * bgp_exit(): Free bgp_nexthop_buf when exiting * bgpd/bgp_route.c * bgp_process_rsclient(): Clear BGP_INFO_MULTIPATH_CHG after processing * bgp_process_main(): Check BGP_INFO_MULTIPATH_CHG to trigger zebra announcement and clear aftr processing * bgpd/bgp_zebra.c * bgp_nexthop_buf: Growable buffer used to collect nexthops for zebra announcement * bgp_zebra_announce(): Grow bgp_nexthop_buf if needed. Include multipath count in zebra announcement and add all nexthops to bgp_nexthop_buf. Pass bgp_nexthop_buf data to zebra announcement. Added nexthops to debug output. * bgp_zebra_init(): Initialize bgp_nexthop_buf at startup * bgpd/bgp_zebra.h * BGP_NEXTHOP_BUF_SIZE: Default initial bgp_nexthop_buf size has room for 8 nexthops
2011-07-20bgpd: Adds support to mark up the BGP rib table entry with multipathJosh Bailey
information based on the multipath list (mp_list) generated during the best path calculation. Display "multipath" for paths that are multipath and also on bestpath if the route is multipath. Flag a best path with the BGP_INFO_MULTIPATH_CHG if the multipath set has changed since the last update. This can be used to trigger updates to zebra and peers. The multipath markup is a lazily allocated bgp_info_mpath structure that is added to the best path and any multipaths. The mpath structures are linked together with the best path element at the head and the other elements ordered by nexthop and then by peer address. This markup scheme is updated by calling bgp_info_mpath_update() and passing in a new mp_list the the current multipath set. There are additional API's for walking the multipath set, querying the count of multipaths, and for cleaning up the multipath markup information when freeing path information. * bgpd/bgp_mpath.c * bgp_info_mpath_new(): Allocation of new mpath element * bgp_info_mpath_free(): Release memory for mpath element * bgp_info_mpath_get(): Access mpath element of path. Allocate memory on-demand * bgp_info_mpath_enqueue(): Enqueue a path onto the multipath list * bgp_info_mpath_dequeue(): Remove a path from the multipath list * bgp_info_mpath_first(): Return first path on the multipath list * bgp_info_mpath_next(): Return next path on the multipath list * bgp_info_mpath_count(): Return the number of paths on the multipath list * bgp_info_mpath_count_set(): Set the number of paths on the multipath list * bgp_info_mpath_update(): Update multipath markup on bgp route table entry and flag any changes. Emit 'debug bgp event' output on any multipath change. * bgpd/bgp_mpath.h * struct bgp_info_mpath: Information added to a bgp_info path to record multipath information * External declarations for new functions in bgp_mpath.c * bgpd/bgp_route.c * bgp_info_free(): Free mpath memory when freeing path information * bgp_info_reap(): Dequeue path from multipath queue before deleting it * bgp_best_selection(): Calls bgp_info_mpath_update() with latest mp_list to mark-up rib table entry * bgp_vty_out_detail(): Add display of multipath flag for a path. Also display 'multipath' for bestpath if it is a multipath route * bgpd/bgp_route.h * struct bgp_info: Add pointer to bgp_info_mpath information * Add flags to mark a path as multipath (BGP_INFO_MULTIPATH) and to mark bestpath if multipath information has changed (BGP_INFO_MULTIPATH_CHG) * lib/memtypes.c * Add MTYPE_BGP_MPATH_INFO for allocating memory for bgp_info_mpath * tests/bgp_mpath_test.c * Add test case for bgp_info_mpath_update() and supporting functions
2011-07-20bgpd: Adds equal-paths check to path comparison. Paths that areJosh Bailey
equal to the best path are accumulated onto an ordered list (mp_list) if maximum-paths is configured. A future commit will add the multipath markup to the BGP rib table based on the mp_list. Add unit test for the added mp_list functions. Deterministic MED is not supported in this commit, it will be added later. * bgpd/bgp_aspath.c * Make aspath_cmp() an external symbol so it can be used in equivalent paths check * bgpd/bgp_aspath.h * Add extern declaration of aspath_cmp() * bgpd/bgp_mpath.c * bgp_info_nexthop_cmp(): Compares nexthops of two paths * bgp_info_mpath_cmp(): Compare function to order multipaths by nexthop and then by peer address * bgp_mp_list_init(): Initialize a list with the multipath order function * bgp_mp_list_clear(): Clear out the mp_list * bgp_mp_list_add(): Add a multipath to mp_list * bgpd/bgp_mpath.h * External declarations for above added functions in bgp_mpath.c * bgpd/bgp_route.c * bgp_info_cmp(): Add equivalent paths result (paths_eq). If eBGP paths are equal down to IGP metric check, flag as equal if peer AS matches. Similarly for iBGP paths but compare full AS_PATH. * bgp_best_selection(): If multipath is enabled, accumulate equivalent paths in mp_list. Add debug bgp event output to see result (will be filtered later to display only when change occurs) * bgp_process_rsclient(): Pass multipath config to bgp_best_selection() * bgp_process_main(): Pass multipath config to bgp_best_selection() * tests/bgp_mpath_test.c * Add unit test case for bgp_mp_list functions
2011-03-23bgpd: Fix compile failure if IPv6 build was disabled.Paul Jakma
* bgp_route.c: ({no_,}ipv6_bgp_network_ttl_cmd) depends on ipv6_bgp_network which is HAVE_IPV6, so these should be too. (bgp_route_init) and the installs should be similarly ifdefed
2011-03-21bgpd: New show commands for improved view and address family supportMichael Lambert
Many show commands do not have support for multiple views and do not treat different address families uniformly. The following changes add a number of commands with support for views and rationalized treatment of IPv4 v IPv6 and unicast v multicast (such as in JUNOS, IOS XR and more recent versions of IOS). * bgp_route.c: (bgp_show_community) Inserted a new second argument (the name of the view) and the code to look up that name in the BGP structure. The NULL argument in the call to bgp_show (indicating the default view) was replaced by the specified view. The existing calls to bgp_show_community had a NULL second argument inserted to make clear that they refer to the default view. (top level) Added new functions via the DEFUN and/or ALIAS macros (and the associated command table entries) to add the commands show bgp ipv4 (unicast|multicast) show bgp ipv4 (unicast|multicast) A.B.C.D show bgp ipv4 (unicast|multicast) A.B.C.D/M show bgp ipv6 (unicast|multicast) show bgp ipv6 (unicast|multicast) X:X::X:X show bgp ipv6 (unicast|multicast) X:X::X:X/M These show either the full BGP table or the specified route or prefix for the given address family. show bgp view WORD (ipv4|ipv6) (unicast|multicast) community show bgp view WORD (ipv4|ipv6) (unicast|multicast) community \ (AA:NN|local-AS|no-advertise|no-export){1,4} For the specified view and address family, these show entries matching any community or the specified communit(y)(ies). show bgp view WORD (ipv4|ipv6) (unicast|multicast) neighbors \ (A.B.C.D|X:X::X:X) (advertised-routes|received-routes) For the specified view and address family, show the routes advertised to or received from the given BGP neighbor. show bgp [view WORD] ipv4 (unicast|multicast) \ rsclient (A.B.C.D|X:X::X:X) show bgp [view WORD] ipv4 (unicast|multicast) \ rsclient (A.B.C.D|X:X::X:X) A.B.C.D show bgp [view WORD] ipv4 (unicast|multicast) \ rsclient (A.B.C.D|X:X::X:X) A.B.C.D/M show bgp [view WORD] ipv6 (unicast|multicast) \ rsclient (A.B.C.D|X:X::X:X) show bgp [view WORD] ipv6 (unicast|multicast) \ rsclient (A.B.C.D|X:X::X:X) X:X::X:X show bgp [view WORD] ipv6 (unicast|multicast) \ rsclient (A.B.C.D|X:X::X:X) X:X::X:X/M For the specifed (optional) view and address family, show either the full BGP table or the specified route or prefix for the given route server client peer. * bgp_vty.c: (top level) Added new functions via the DEFUN and/or ALIAS macros (and the associated command table entries) to add the commands show bgp [view WORD] (ipv4|ipv6) (unicast|multicast) summary show bgp [view WORD] (ipv4|ipv6) (unicast|multicast) rsclient summary For the specified (optional) view and address family, display either the normal summary table for BGP peers, or the route server client table showing the import and export policies.
2011-03-21bgpd: Remove AS Path limit/TTL functionalityPaul Jakma
* draft-ietf-idr-as-pathlimit doesn't seem to have gone anywhere, and its author does not think it will make progress in IDR. Remove all support introduced for it, but leave stubs for the commands to avoid breaking any configurations. Basically reverts cecab5e9725792e60a5e4b473e238a14cd85815d.
2011-03-21bgpd: Try fix extcommunity resource allocation probs, particularly with 'set ↵Paul Jakma
extcom..' * Extended communities has some kind of resource allocation problem which causes a double-free if the 'set extcommunity ...' command is used. Try fix by properly interning extcommunities. Also, more generally, make unintern functions take a double pointer so they can NULL out callers references - a usefully defensive programming pattern for functions which make refs invalid. Sadly, this patch doesn't fix the problem entirely - crashes still occur on session clear. * bgp_ecommunity.h: (ecommunity_{free,unintern}) take double pointer args. * bgp_community.h: (community_unintern) ditto * bgp_attr.h: (bgp_attr_intern) ditto * bgp_aspath.h: (bgp_aspath.h) ditto * (general) update all callers of above * bgp_routemap.c: (route_set_ecommunity_{rt,soo}) intern the new extcom added to the attr, and unintern any old one. (route_set_ecommunity_{rt,soo}_compile) intern the extcom to be used for the route-map set. (route_set_ecommunity_*_free) unintern to match, instead of free (route_set_ecommunity_soo) Do as _rt does and don't just leak any pre-existing community, add to it (is additive right though?)
2011-03-21bgpd: Fix display of unsigned attributesWataru Tanitsu
* bgp_route.c: (route_vty_out*) The local prefix, metric and weight values are all stored as uint32_t. Change the format to %u so that large values are not displayed as negative integers.
2011-03-21bgpd: fix use of free memory by update_rsclientStephen Hemminger
* bgp_route.c: (bgp_static_update_rsclient) BGP sometimes crashes when removing route server client because of use after free. The code to update rsclient created a local static copy of bgp attributes but neglected to handle the extra information pointer. The extra information was getting freed by bgp_attr_unintern() and reused later when the copy was passed to bgp_attr_intern(). The fix is to use the attr_dup function to create a copy of the extra information, then clean it up.
2011-03-21bgpd: unlock node on aggregate errorRobert Bays
* bgp_route.c: (bgp_aggregate_set) make sure to unlock BGP node if failure
2011-03-21bgpd: fix errors in aggregate address commandRobert Bays
* bgpd: (bgp_aggregate_{set,unset,delete}) This fixes locking and other issues with aggregate set/unset command
2011-03-21bgpd: fix bgp_node locking issuesChris Caputo
* bgpd: Connected table locks were being locked but not unlocked, such that eventually a lock would exceed 2^31 and become negative, thus triggering an assert later on. * bgp_main.c: (bgp_exit) delete connected elements along with ifp's. * bgp_nexthop.c: (bgp_nexthop_lookup{,_ipv6}) add missing unlocks (bgp_multiaccess_check_v4) ditto (bgp_connected_{add,delete}) Use a distinct memtype for bgp_connected_ref. (bgp_scan_finish) reset the nexthop cache to clean it up when bgpd exits * bgp_route.c: fix missing bgp_node unlocks * lib/memtype.c: (memory_list_bgp) add MTYPE_BGP_CONN * testing: has been tested for almost 2 months now.
2011-03-20Merge paul/ospfd/201012-review ospfd and lib/ fixes and performance improvementsPaul Jakma
2011-03-18bgpd: improve "monotonic" uptime correctionJohn Kemp
Older versions of Quagga/Zebra would output a value in MRT table dump files for "uptime" aka "ORIGINATED" that was a WALL clock value. Given that uptime is now internally a bgp_clock MONOTONIC value, the output in the MRT files is showing up as monotonic. Note: time of MRT dump is still recorded correctly as a time() based value, so we haven't lost that value. Proposal is to correct the uptime output on the vty and in the MRT files to again display something more akin to WALL time. * bgp_dump.c: (bgp_dump_routes_func) add conditional correction * bgp_route.c: (route_vty_out_detail) make correction conditional, move variable declaration to beginning of the function
2010-12-08bgpd: Simplify process queue initPaul Jakma
* bgp_route.c: (bgp_process_queue_init) rsclient wasn't getting all the same things initialised as the main queue. Simplify to make it more robust.
2010-10-21bgpd: fix printed value of last-update timestampVladimir L Ivanov
* bgp_route.c: (route_vty_out_detail) calculate time value in a way, which works regardless of monotonic clock being used or not
2010-10-06bgpd, lib: adopt afi_t and safi_t in several placesMichael Lambert
* bgpd/bgp_attr.c, bgpd/bgp_open.h, bgpd/bgp_route.c, lib/prefix.c, lib/prefix.h: Various integer types were being used where, if we had strict type checking, afi_t and safi_t would be required. Signed-off-by: G.Balaji <balajig81@gmail.com> (cherry picked from commit c8af35ffa2dc79ff7d7ff00b1b61f1f50a100ab6)
2010-01-15bgp: use monotonic clock for time of dayStephen Hemminger
BGP uses time() to get system time of day; but that value fluctuates with time adjustments from NTP. This can cause premature flapping of peer sessions and other failures. Use the system monotonic clock supported by Quagga thread library to avoid issue. See: http://bugzilla.vyatta.com/show_bug.cgi?id=4467 * bgpd/bgp_fsm.c * bgp_uptime_reset(): dismiss function * bgpd/bgpd.c * bgp_clock(): new function * bgpd/bgp_damp.c * bgp_reuse_timer(): employ bgp_clock() instead of time(NULL) * bgp_damp_withdraw(): idem * bgp_damp_update(): idem * bgp_damp_scan(): idem * bgp_damp_info_vty(): idem * bgp_damp_reuse_time_vty(): idem * bgpd/bgp_fsm.c * bgp_routeadv_timer(): idem * bgp_stop(): idem * bgp_establish(): idem * bgpd/bgp_packet.c * bgp_update_receive(): idem * bgpd/bgp_route.c * bgp_update_rsclient(): idem * bgp_update_main(): idem * bgp_static_update_rsclient(): idem * bgp_static_update_main(): idem * bgp_static_update_vpnv4(): idem * bgp_aggregate_route(): idem * bgp_aggregate_add(): idem * bgp_redistribute_add(): idem * bgpd/bgp_snmp.c * bgpPeerTable(): idem * bgpTrapEstablished(): idem * bgpTrapBackwardTransition(): idem * bgpd/bgpd.c * peer_create(): idem * peer_uptime(): idem * bgp_master_init(): idem
2009-12-10bgpd: compile warnings cleanupStephen Hemminger
* bgpd/bgp_fsm.c * bgp_clearing_completed(): only used in one file, can be static * bgpd/bgp_packet.c * afi2str(): sayonara * safi2str(): sayonara * bgpd/bgp_route.c * bgp_distance_reset(): sayonara * bgpd/bgp_zebra.c * bgp_ifindex_by_nexthop(): sayonara
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] Small buffer overrun in bgp_clear_node_queue_initNick Hilliard
* bgp_route.c: (bgp_clear_node_queue_init) fix buffer overrun.
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().
2009-06-26[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.
2009-06-24[bgpd] Add 'show ip bgp view WORD neighbors IP (advertised|received)-routes'Tomasz Pala
* bgp_route.c: Was missing these commands.
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>