The following types are nonstandard:
- u_char
- u_short
- u_int
- u_long
- u_int8_t
- u_int16_t
- u_int32_t
Replace them with the C99 standard types:
- uint8_t
- unsigned short
- unsigned int
- unsigned long
- uint8_t
- uint16_t
- uint32_t
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
- add "debug bgp vpn label" CLI
- improved debug messages for "debug bgp bestpath"
- send vrf label to zebra after zebra informs bgpd of vrf_id
- withdraw vrf_label from zebra if zebra informs bgpd that vrf_id is disabled
Signed-off-by: G. Paul Ziemba <paulz@labn.net>
Received PMSI tunnel attributes (in EVPN type-3 route) were not recognized.
Parse them and display the tunnel type when looking at routes. Note that
the only tunnel type currently supported is ingress replication (IR). A
warning message will be logged if the received tunnel type is something
else, but the attribute is otherwise ignored.
Updates: a21bd7a (bgpd: add PMSI_TUNNEL_ATTRIBUTE to EVPN IMET routes)
Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
When doing symmetric routing,
EVPN type-2 (MACIP) routes need to be advertised with two labels (VNIs)
the first being the L2 VNI (identifying the VLAN) and
the second being the L3 VNI (identifying the VRF).
The receive processing needs to handle one or two labels too.
Ticket: CM-18489
Review: CCR-6949
Testing: manual and bgp/evpn/mpls smoke
Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
Building a communities json object every time is
both expensive and memory wasteful. Modify
code to only build the json object when needed.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Signed-off-by: Daniel Walton <dwalton@cumulusnetworks.com>
You could configure something bogus like "debug bgp updates prefix
10.1.1.1/16", this needs to be converted to "10.1.0.0/16"
Since we don't actually have a BGP context until we enter into the
`router bgp` node, debugging commands which use DECLVAR before that
happens will fail. This is just `no debug bgp` and `no debug bgp
updates`. Instead just iterate over all bgp instances and do the deed.
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
Signed-off-by: Daniel Walton <dwalton@cumulusnetworks.com>
This allows frr-reload.py (or anything else that scripts via vtysh)
to know if the vtysh command worked or hit an error.
Most of the attributes in 'struct attr_extra' allow for
the more interesting cases of using bgp. The extra
overhead of managing it will induce errors as we add
more attributes and the extra memory overhead is
negligible on anything but full bgp feeds.
Additionally this greatly simplifies the code for
the handling of data.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
bgpd: Fix missing label set
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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>
(This was intended as further demonstration of the DEFPY code, but it
might as well go into the tree.)
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
The FSF's address changed, and we had a mixture of comment styles for
the GPL file header. (The style with * at the beginning won out with
580 to 141 in existing files.)
Note: I've intentionally left intact other "variations" of the copyright
header, e.g. whether it says "Zebra", "Quagga", "FRR", or nothing.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Originally we used the 'peer' parameter for this:
if (peer_sort (peer) == BGP_PEER_IBGP)
snprintf (buf + strlen (buf), size - strlen (buf), ", localpref %d",
attr->local_pref);
Now we have this:
if (CHECK_FLAG (attr->flag, ATTR_FLAG_BIT (BGP_ATTR_LOCAL_PREF)))
snprintf (buf + strlen (buf), size - strlen (buf), ", localpref %u",
attr->local_pref);
Remove the now useless 'peer' parameter.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
Signed-off-by: Daniel Walton <dwalton@cumulusnetworks.com>
The initial implementation was against draft-keyupate-idr-bgp-prefix-sid-02
This updates our label-index implementation up to draft-ietf-idr-bgp-prefix-sid-05
- changed BGP_ATTR_LABEL_INDEX to BGP_ATTR_PREFIX_SID
- since there are multiple TLVs in BGP_ATTR_PREFIX_SID you can no longer
rely on that flag to know if there is a label-index for the path. I
changed bgp_attr_extra_new() to init the label_index to
BGP_INVALID_LABEL_INDEX
- put some placeholder code in for the other two TLVs (IPv6 and
Originator SRGB)
Implement BGP Prefix-SID IETF draft to be able to signal a labeled-unicast
prefix with a label index (segment ID). This makes it easier to deploy
global MPLS labels with BGP, even without other aspects of Segment Routing
implemented.
Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
The define is added in order to be reused, when one wants to display
addpath identifier as a string with some comment.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
It seems these two were at some point copied in from rsync; replace with
more recent versions that will hopefully become available in glibc as
well.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
lib/zebra.h has FILTER_X #define's. These do not belong there.
Put them in lib/filter.h where they belong.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
(cherry picked from commit 0490729cc033a3483fc6b0ed45085ee249cac779)
While processing references to the macro PEERAF_FOREACH(), aggressive loop
optimization by gcc 4.9.x (probably 4.8 and greater) was resulting in the
generated code not checking on the index as well as eliminating some code.
This was leading to a dereference of invalid memory when a BGP peer came up.
The fix is to scrap this convoluted macro. Two other changes done are to
eliminate overloading of "afindex" and make the loop iterator an integer.
Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
Reviewed-by: Dave Olson <olson@cumulusnetworks.com>
Reviewed-by: Donald Sharp <sharpd@cumulusnetworks.com>
Reviewed-by: Daniel Walton <dwalton@cumulusnetworks.com>
Ticket: CM-8889
Reviewed By: CCR-4018
Testing Done: Verified failure scenario
Note: This code was added as part of update-groups implementation; when
upstreaming update-groups, this patch should also be included.
will be deprecated in the future
Signed-off-by: Daniel Walton <dwalton@cumulusnetworks.com>
Reviewed-by: Donald Sharp <sharpd@cumulusnetworks.com>
Reviewed-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
Ticket: CM-8144
As part of the debian build process for jessie we are seeing
some compile issues. This addresses these issues
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Ticket: CM-7439
Reviewed By: Donald Sharp
Testing Done:
If a session was reset due to a NOTIFICATION the "show ip bgp
neighbor" output would not display details on what the
notification actually was. This patch changes that. Example:
superm-redxp-05# show ip bgp neighbors 20.1.2.2
BGP neighbor is 20.1.2.2, remote AS 21, local AS 10, external link
[snip]
Last reset 01:05:07, due to NOTIFICATION sent (OPEN Message Error/Bad Peer AS)
This patch adds a hostname capability. The node's hostname and
domainname are exchanged in the new capability and used in show command
outputs based on a knob enabled by the user. The hostname and domainname
can be a maximum of 64 chars long, each.
Signed-off-by: Dinesh G Dutt <ddutt@cumulusnetworks.com>
Reviewed-by: Daniel Walton <dwalton@cumulusnetworks.com>
Reviewed-by: Vivek Venkataraman <vivek@cumulusnetworks.com>
Ticket: CM-5660
Reviewed By: CCR-2563
Testing Done:
Ticket: CM-7177
Reviewed-by: CCR-3396
Testing: See bug
This code change does several small things:
(A) Fix a couple detected memory leaks
(B) Fix all malloc operations to use the correct XMALLOC operation in bgpd and parts of lib
(C) Adds a few new memory types to make it easier to detect issues
bgpd: Exchange hostname capability and display hostnames in outputs
This patch adds a hostname capability. The node's hostname and
domainname are exchanged in the new capability and used in show command
outputs based on a knob enabled by the user. The hostname and domainname
can be a maximum of 64 chars long, each.
Signed-off-by: Dinesh G Dutt <ddutt@cumulusnetworks.com>
Reviewed-by: Daniel Walton <dwalton@cumulusnetworks.com>
Reviewed-by: Vivek Venkataraman <vivek@cumulusnetworks.com>
This patch implements the 'update-groups' functionality in BGP. This is a
function that can significantly improve BGP performance for Update generation
and resultant network convergence. BGP Updates are formed for "groups" of
peers and then replicated and sent out to each peer rather than being formed
for each peer. Thus major BGP operations related to outbound policy
application, adj-out maintenance and actual Update packet formation
are optimized.
BGP update-groups dynamically groups peers together based on configuration
as well as run-time criteria. Thus, it is more flexible than update-formation
based on peer-groups, which relies on operator configuration.
[Note that peer-group based update formation has been introduced into BGP by
Cumulus but is currently intended only for specific releases.]
From 11098af65b2b8f9535484703e7f40330a71cbae4 Mon Sep 17 00:00:00 2001
Subject: [PATCH] updgrp commits
Summary of changes
- added an option to enable keepalive debugs for a specific peer
- added an option to enable inbound and/or outbound updates debugs for a specific peer
- added an option to enable update debugs for a specific prefix
- added an option to enable zebra debugs for a specific prefix
- combined "deb bgp", "deb bgp events" and "deb bgp fsm" into "deb bgp neighbor-events". "deb bgp neighbor-events" can be enabled for a specific peer.
- merged "deb bgp filters" into "deb bgp update"
- moved the per-peer logging to one central log file. We now have the ability to filter all verbose debugs on a per-peer and per-prefix basis so we no longer need to keep log files per-peer. This simplifies troubleshooting by keeping all BGP logs in one location. The use
r can then grep for the peer IP they are interested in if they wish to see the logs for a specific peer.
- Changed "show debugging" in isis to "show debugging isis" to be consistent with all other protocols. This was very confusing for the user because they would type "show debug" and expect to see a list of debugs enabled across all protocols.
- Removed "undebug" from the parser for BGP. Again this was to be consisten with all other protocols.
- Removed the "all" keyword from the BGP debug parser. The user can now do "no debug bgp" to disable all BGP debugs, before you had to type "no deb all bgp" which was confusing.
The new parse tree for BGP debugging is:
deb bgp as4
deb bgp as4 segment
deb bgp keepalives [A.B.C.D|WORD|X:X::X:X]
deb bgp neighbor-events [A.B.C.D|WORD|X:X::X:X]
deb bgp nht
deb bgp updates [in|out] [A.B.C.D|WORD|X:X::X:X]
deb bgp updates prefix [A.B.C.D/M|X:X::X:X/M]
deb bgp zebra
deb bgp zebra prefix [A.B.C.D/M|X:X::X:X/M]
quagga: nexthop-tracking.patch
Add next hop tracking support to Quagga. Complete documentation in doc/next-hop-tracking.txt.
Signed-off-by: Pradosh Mohapatra <pmohapat@cumulusnetworks.com>
Signed-off-by: Daniel Walton <dwalton@cumulusnetworks.com>
Signed-off-by: Dinesh Dutt <ddutt@cumulusnetworks.com>
Quagga sources have inherited a slew of Page Feed (^L, \xC) characters
from ancient history. Among other things, these break patchwork's
XML-RPC API because \xC is not a valid character in XML documents.
Nuke them from high orbit.
Patches can be adapted simply by:
sed -e 's%^L%%' -i filename.patch
(you can type page feeds in some environments with Ctrl-V Ctrl-L)
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Invalid BGP Notification messages should be logged locally, cf.
RFC4271, Sect. 6.4, p 34,
NOTIFICATION Message Error Handling
Current notification for invalid Notification code:
2012/10/10 02:17:54 BGP: message index 10 not found in bgp_notify_msg (max is 8)
2012/10/10 02:17:54 BGP: 192.168.1.1 received NOTIFICATION 10/0 ((no item found)) 0 bytes
the logging should be a bit more clear. The above logging really doesn't
explain much and looks more like a programming error.
[rewrote most of it to get in something I can call a shape -David]
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
* bgpd/bgp_aspath.c: (aspath_make_str_count) "assert (len < str_size)" was
getting hit under certain 4-byte ASN conditions. New realloc strategy.
* bgpd/bgp_aspath.c: (aspath_key_make) const warning fix.
"%d" -> "%u" 4-byte ASN corrections. Prevent negative number when ASN is
above 2^31.
2008-03-13 Paul Jakma <paul.jakma@sun.com>
* (various) Remove 0 entries from struct message's, unneeded due to
recent improvements in mes_lookup/LOOKUP.
2007-10-14 Paul Jakma <paul.jakma@sun.com>
* NEWS: Note that MRT dumps are now version 2
* (general) Merge in Juergen Kammer's AS4 patch.
2007-09-27 Paul Jakma <paul.jakma@sun.com>
* bgp_aspath.c: (assegment_normalise) remove duplicates from
from sets.
(aspath_reconcile_as4) disregard a broken part of the RFC around
error handling in path reconciliation.
* aspath_test.c: Test dupe-weeding from sets.
Test that reconciliation merges AS_PATH and AS4_PATH where
former is shorter than latter.
2007-09-26 Paul Jakma <paul.jakma@sun.com>
* aspath_test.c: Test AS4_PATH reconcilation where length
of AS_PATH and AS4_PATH is same.
2007-09-25 Paul Jakma <paul.jakma@sun.com>
* bgp_open.c: (peek_for_as4_capability) Fix to work.
* bgp_packet.c: (bgp_open_receive) Fix sanity check of as4.
* tests/bgp_capability_test.c: (general) Extend tests to validate
peek_for_as4_capability.
Add test of full OPEN Option block, with multiple capabilities,
both as a series of Option, and a single option.
Add some crap to beginning of stream, to prevent code depending
on getp == 0.
2007-09-18 Paul Jakma <paul.jakma@sun.com>
* bgp_open.c: (bgp_capability_as4) debug printf inline with others.
(peek_for_as4_capability) There's no need to signal failure, as
failure is better dealt with through full capability parser -
just return the AS4, simpler.
* bgp_packet.c: (bgp_open_receive) Update to match
peek_for_as4_capability change.
Allow use of BGP_AS_TRANS by 2b speakers.
Use NOTIFY_OPEN_ERR rather than CEASE for OPEN parsing errors.
(bgp_capability_msg_parse) missing argument to debug print
(bgp_capability_receive) missing return values.
* tests/bgp_capability_test.c: (parse_test) update for changes to
peek_for_as4_capability
2007-07-25 Paul Jakma <paul.jakma@sun.com>
* Remove 2-byte size macros, just make existing macros take
argument to indicate which size to use.
Adjust all users - typically they want '1'.
* bgp_aspath.c: (aspath_has_as4) New, return 1 if there are any
as4's in a path.
(aspath_put) Return the number of bytes actually written, to
fix the bug Juergen noted: Splitting of segments will change
the number of bytes written from that already written to the
AS_PATH header.
(aspath_snmp_pathseg) Pass 2-byte flag to aspath_put. SNMP
is still defined as 2b.
(aspath_aggregate) fix latent bug.
(aspath_reconcile_as4) AS_PATH+NEW_AS_PATH reconciliation
function.
(aspath_key_make) Hash the AS_PATH string, rather than
just taking the addition of assegment ASes as the hash value,
hopefully sligthly more collision resistant.
(bgp_attr_munge_as4_attrs) Collide the NEW_ attributes
together with the OLD 2-byte forms, code Juergen
had in bgp_attr_parse but re-organised a bit.
(bgp_attr_parse) Bunch of code from Juergen moves
to previous function.
(bgp_packet_attribute) Compact significantly by
just /always/ using extended-length attr header.
Fix bug Juergen noted, by using aspath_put's
(new) returned size value for the attr header rather
than the (guesstimate) of aspath_size() - the two could
differ when aspath_put had to split large segments, unlikely
this bug was ever hit in the 'wild'.
(bgp_dump_routes_attr) Always use extended-len and
use aspath_put return for header length. Output 4b ASN
for AS_PATH and AGGREGATOR.
* bgp_ecommunity.c: (ecommunity_{hash_make,cmp}) fix
hash callback declarations to match prototypes.
(ecommunity_gettoken) Updated for ECOMMUNITY_ENCODE_AS4,
complete rewrite of Juergen's changes (no asdot support)
* bgp_open.c: (bgp_capability_as4) New, does what it says
on the tin.
(peek_for_as4_capability) Rewritten to use streams and
bgp_capability_as4.
* bgp_packet.c: (bgp_open_send) minor edit
checked (in the abstract at least) with Juergen.
Changes are to be more accepting, e.g, allow AS_TRANS on
a 2-byte session.
* (general) Update all commands to use CMD_AS_RANGE.
* bgp_vty.c: (bgp_clear) Fix return vals to use CMD_..
Remove stuff replicated by VTY_GET_LONG
(bgp_clear_vty) Return bgp_clear directly to vty.
* tests/aspath_test.c: Exercise 32bit parsing. Test reconcile
function.
* tests/ecommunity_test.c: New, test AS4 ecommunity changes,
positive test only at this time, error cases not tested yet.
2007-07-25 Juergen Kammer <j.kammer@eurodata.de>
* (general) AS4 support.
* bgpd.h: as_t changes to 4-bytes.
* bgp_aspath.h: Add BGP_AS4_MAX and BGP_AS_TRANS defines.
* bgp_aspath.c: AS_VALUE_SIZE becomes 4-byte, AS16_VALUE_SIZE
added for 2-byte.
Add AS16 versions of length calc macros.
(aspath_count_numas) New, count number of ASes.
(aspath_has_as4) New, return 1 if there are any as4's in a
path.
(assegments_parse) Interpret assegment as 4 or 2 byte,
according to how the caller instructs us, with a new
argument.
(aspath_parse) Add use32bit argument to pass to
assegments_parse. Adjust all its callers to pass 1, unless
otherwise noted.
(assegment_data_put) Adjust to be able to write 2 or 4 byte
AS, according to new use32bit argument.
(aspath_put) Adjust to write 2 or 4.
(aspath_gettoken) Use a long for passed in asno.
* bgp_attr.c: (attr_str) Add BGP_ATTR_AS4_PATH and
BGP_ATTR_AS4_AGGREGATOR.
(bgp_attr_aspath) Call aspath_parse with right 2/4 arg, as
determined by received-capability flag.
(bgp_attr_aspath_check) New, code previously in attr_aspath
but moved to new func so it can be run after NEW_AS_PATH
reconciliation.
(bgp_attr_as4_path) New, handle NEW_AS_PATH.
(bgp_attr_aggregator) Adjust to cope with 2/4 byte ASes.
(bgp_attr_as4_aggregator) New, read NEW_AGGREGATOR.
(bgp_attr_parse) Add handoffs to previous parsers for the two
new AS4 NEW_ attributes.
Various checks added for NEW/OLD reconciliation.
(bgp_packet_attribute) Support 2/4 for AS_PATH and
AGGREGATOR, detect when NEW_ attrs need to be sent.
* bgp_debug.{c,h}: Add 'debug bgp as4'.
* bgp_dump.c: MRTv2 support, unconditionally enabled, which
supports AS4. Based on patches from Erik (RIPE?).
* bgp_ecommunity.c: (ecommunity_ecom2str) ECOMMUNITY_ENCODE_AS4
support.
* bgp_open.c: (peek_for_as4_capability) New, peek for AS4
capability prior to full capability parsing, so we know which
ASN to use for struct peer lookup.
(bgp_open_capability) Always send AS4 capability.
* bgp_packet.c: (bgp_open_send) AS4 handling for AS field
(bgp_open_receive) Peek for AS4 capability first, and figure
out which AS to believe.
* bgp_vty.c: (bgp_show_peer) Print AS4 cap
* tests/aspath_test.c: Support asn32 changes, call aspath_parse
with 16 bit.
* vtysh/extract.pl: AS4 compatibility for router bgp ASNUMBER
* vtysh/extract.pl.in: AS4 compatibility for router bgp ASNUMBER
* vtysh/vtysh.c: AS4 compatibility for router bgp ASNUMBER
2007-05-03 Paul Jakma <paul.jakma@sun.com>
* bgp_route.h: (struct info) Move less frequently used
fields to a lazily allocated struct info_extra.
Export bgp_info_extra_get
* bgp_route.c: (bgp_info_extra_new) allocate extra
(bgp_info_extra_free) Free damp info and the info_extra.
(bgp_info_extra_get) Retrieve the info_extra of a struct
info, allocating as required.
(generally) adjust to use info->extra
* bgp_damp.c: (generally) use bgp_info_extra_get to access
dampinfo
* bgp_attr.h: Move rarely allocated attributes from struct attr
to a struct attr_extra, for a substantial saving in size of
struct attr.
* bgp_attr.c: (bgp_attr_extra_{new,free}), new, self-explanatory.
(bgp_attr_extra_get) Get the attr_extra for a given struct
attr, allocating it if needs be.
(bgp_attr_dup) Shallow copy the struct attr and its attr_extra.
(generally) adjust to know about attr->extra.
* bgp_debug.c: (bgp_dump_attr) ditto
* bgp_vty.c: (show_bgp_memory) print attr and info extra sizes.
* bgp_nexthop.c: (generally) adjust to know about attr->extra
and info->extra.
* bgp_{packet,routemap,snmp,zebra}.c: ditto
* lib/memtypes.c: Add MTYPE_ATTR_EXTRA and MTYPE_BGP_ROUTE_EXTRA
2006-11-30 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* bgp_debug.h: Declare new bgp_debug_zebra conf and term flags,
and define BGP_DEBUG_ZEBRA.
* bgp_debug.c: Declare conf_bgp_debug_zebra and term_bgp_debug_zebra.
(debug_bgp_zebra, no_debug_bgp_zebra, undebug_bgp_zebra) New
functions to enable/disable bgp zebra debugging.
(no_debug_bgp_all) Turn off zebra debugging.
(show_debugging_bgp) Show whether zebra debugging is on.
(bgp_config_write_debug) Add 'debug bgp zebra' if configured.
(bgp_debug_init) Add new zebra debugging commands.
* bgp_zebra.c: (bgp_router_id_update, bgp_interface_add,
bgp_interface_delete, bgp_interface_up, bgp_interface_down,
bgp_interface_address_add, bgp_interface_address_delete,
zebra_read_ipv4, zebra_read_ipv6, bgp_zebra_announce,
bgp_zebra_withdraw, bgp_redistribute_set, bgp_redistribute_unset)
If zebra debugging is enabled, log an appropriate debug message.
2006-09-14 Paul Jakma <paul.jakma@sun.com>
* (general) Fix some niggly issues around 'shutdown' and clearing
by adding a Clearing FSM wait-state and a hidden 'Deleted'
FSM state, to allow deleted peers to 'cool off' and hit 0
references. This introduces a slow memory leak of struct peer,
however that's more a testament to the fragility of the
reference counting than a bug in this patch, cleanup of
reference counting to fix this is to follow.
* bgpd.h: Add Clearing, Deleted states and Clearing_Completed
and event.
* bgp_debug.c: (bgp_status_msg[]) Add strings for Clearing and
Deleted.
* bgp_fsm.h: Don't allow timer/event threads to set anything
for Deleted peers.
* bgp_fsm.c: (bgp_timer_set) Add Clearing and Deleted. Deleted
needs to stop everything.
(bgp_stop) Remove explicit fsm_change_status call, the
general framework handles the transition.
(bgp_start) Log a warning if a start is attempted on a peer
that should stay down, trying to start a peer.
(struct .. FSM) Add Clearing_Completed
events, has little influence except when in state
Clearing to signal wait-state can end.
Add Clearing and Deleted states, former is a wait-state,
latter is a placeholder state to allow peers to disappear
quietly once refcounts settle.
(bgp_event) Try reduce verbosity of FSM state-change debug,
changes to same state are not interesting (Established->Established)
Allow NULL action functions in FSM.
* bgp_packet.c: (bgp_write) Use FSM events, rather than trying
to twiddle directly with FSM state behind the back of FSM.
(bgp_write_notify) ditto.
(bgp_read) Remove the vague ACCEPT_PEER peer_unlock, or else
this patch crashes, now it leaks instead.
* bgp_route.c: (bgp_clear_node_complete) Clearing_Completed
event, to end clearing.
(bgp_clear_route) See extensive comments.
* bgpd.c: (peer_free) should only be called while in Deleted,
peer refcounting controls when peer_free is called.
bgp_sync_delete should be here, not in peer_delete.
(peer_delete) Initiate delete.
Transition to Deleted state manually.
When removing peer from indices that provide visibility of it,
take great care to be idempotent wrt the reference counting
of struct peer through those indices.
Use bgp_timer_set, rather than replicating.
Call to bgp_sync_delete isn't appropriate here, sync can be
referenced while shutting down and finishing deletion.
(peer_group_bind) Take care to be idempotent wrt list references
indexing peers.
* (global) The great bgpd extern and static'ification.
* bgp_routemap.c: remove unused ROUTE_MATCH_ASPATH_OLD code
(route_set_metric_compile) fix u_int32_t to ULONG_MAX comparison
warnings.
* bgp_route.h: (bgp_process, bgp_withdraw, bgp_update) export these
used by various files which had their own private declarations,
in the case of mplsvpn - incorrect.
* (global) more const'ification and fixups of types to clean up code.
* bgp_mplsvpn.{c,h}: (str2tag) fix abuse. Still not perfect,
should use something like the VTY_GET_INTEGER macro, but without
the vty_out bits..
* bgp_routemap.c: (set_aggregator_as) use VTY_GET_INTEGER_RANGE
(no_set_aggregator_as) ditto.
* bgpd.c: (peer_uptime) fix unlikely bug, where no buffer is
returned, add comments about troublesome return value.
* (many) reference <lib/version.h> rather than "version.h",
because version.h is a generated file and not present in the
source tree when using objdir builds.
(committed by gdt)
works fine with normal builds; didn't try objdir
