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This reverts commit d78e2b8b562f8496aaf2977f7371415b71e82433. Next 2
commits fix it.
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it doesn't compile currently; it'll be fixed after the 0.99.21 release.
* tests/bgp_mp_attr_test.c: wrap in #if 0 for now
Signed-off-by: David Lamparter <equinox@diac24.net>
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Conflicts:
bgpd/bgp_route.c
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* bgp_attr.[ch]
* bgp_mp_reach_parse(): add extra arguments and a uniform flag
check block
* bgp_mp_unreach_parse(): idem
* bgp_attr_parse(): provide extra arguments
* bgp_mp_attr_test.c
* parse_test(): justify respective calls
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(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
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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
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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
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* tests/bgp_mpath_test.c
* New file with test framework for testing BGP multipath
* Add test for CLI support functions
* tests/Makefile.am
* Add new testbgpmpath target
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* BGP error handling generally boils down to "reset session". This was fine
when all BGP speakers pretty much understood all BGP messages. However
the increasing deployment of new attribute types has shown this approach
to cause problems, in particular where a new attribute type is "tunneled"
over some speakers which do not understand it, and then arrives at a speaker
which does but considers it malformed (e.g. corruption along the way, or
because of early implementation bugs/interop issues).
To mitigate this drafts before the IDR (likely to be adopted) propose to
treat errors in partial (i.e. not understood by neighbour), optional
transitive attributes, when received from eBGP peers, as withdrawing only
the NLRIs in the affected UPDATE, rather than causing the entire session
to be reset. See:
http://tools.ietf.org/html/draft-scudder-idr-optional-transitive
* bgp_aspath.c: (assegments_parse) Replace the "NULL means valid, 0-length
OR an error" return value with an error code - instead taking
pointer to result structure as arg.
(aspath_parse) adjust to suit previous change, but here NULL really
does mean error in the external interface.
* bgp_attr.h (bgp_attr_parse) use an explictly typed and enumerated
value to indicate return result.
(bgp_attr_unintern_sub) cleans up just the members of an attr, but not the
attr itself, for benefit of those who use a stack-local attr.
* bgp_attr.c: (bgp_attr_unintern_sub) split out from bgp_attr_unintern
(bgp_attr_unintern) as previous.
(bgp_attr_malformed) helper function to centralise decisions on how to
handle errors in attributes.
(bgp_attr_{aspathlimit,origin,etc..}) Use bgp_attr_malformed.
(bgp_attr_aspathlimit) Subcode for error specifc to this attr should be
BGP_NOTIFY_UPDATE_OPT_ATTR_ERR.
(bgp_attr_as4_path) be more rigorous about checks, ala bgp_attr_as_path.
(bgp_attr_parse) Adjust to deal with the additional error level that
bgp_attr_ parsers can raise, and also similarly return appropriate
error back up to (bgp_update_receive). Try to avoid leaking as4_path.
* bgp_packet.c: (bgp_update_receive) Adjust to deal with BGP_ATTR_PARSE_WITHDRAW
error level from bgp_attr_parse, which should lead to a withdraw, by
making the attribute parameter in call to (bgp_nlri_parse) conditional
on the error, so the update case morphs also into a withdraw.
Use bgp_attr_unintern_sub from above, instead of doing this itself.
Fix error case returns which were not calling bgp_attr_unintern_sub
and probably leaking memory.
* tests/aspath_test.c: Fix to work for null return with bad segments
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* aspath_test.c: Add more test cases. In particular ones to cover the
last invalid-segment problem. Also add ability to specify aspath attribute
headers and test them somewhat.
NB: It's obvious this test has not been run for a year by anyone, despite
2 non-trivial commits to bgpd aspath code.
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* bgpd/bgp_aspath.c
* assegments_parse(): add handling of AS4_PATH input, update bounds
checks, add check for AS segment type
* aspath_parse(): add handling of AS4_PATH input, expect
assegments_parse() to do length checking
* aspath_empty(): update for the new function prototype
* bgpd/bgp_aspath.h: ditto
* tests/aspath_test.c: ditto
* bgpd/bgp_attr.c
* bgp_attr_aspath(): add handling of AS4_PATH input, update flags
checks, change returned type
* bgp_attr_as4_path(): discard, superseded by bgp_attr_aspath()
* bgp_attr_parse(): update respectively
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* */*main.c: (main) Current versions of Gcc warn if the return value for
daemon() is not checked. So add a simple test and exit on failure.
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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.
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* lib/checksum.c: (fletcher_checksum) Switch the second phase of the checksum
back to the old ospfd logic.
The isisd-derived version:
a) is very hard to follow
b) had some kind of subtle bug that caused it be wrong when c0=0 and c1=254
(potentially fixable by doing the mods before adjusting x and y)
Additionally:
- explicitely cast expressions using non-internal variables to int, to ensure
the result is signed.
- defensively change the length argument to 'size_t', to ensure the code
works with that argument being unsigned..
Thanks to Joakim Tjernlund for the investigative work into this bug.
* tests/test-checksum.c: new file to exercise the checksum code.
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2008-08-13 Paul P Komkoff Jr <i@stingr.net>
* configure.ac: add a configure flag and autoconf macro, which will
determine if your toolchain supports PIE.
* */Makefile.am: add corresponding CFLAGS and LDFLAGS into
appropriate places.
Signed-off-by: Paul Jakma <paul@quagga.net>
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2008-06-07 Paul Jakma <paul@jakma.org
* bgp_mp_attr_test.c: MP_(UN)REACH_NLRI unit tests
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2008-06-07 Paul Jakma <paul@jakma.org
* bgp_mp_attr_test.c: MP_(UN)REACH_NLRI unit tests
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2008-02-23 Paul Jakma <paul.jakma@sun.com>
* aspath_test.c: Test for 0-ASN sequences that still have data.
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2007-12-22 Paul Jakma <paul.jakma@sun.com>
* Fix series of vulnerabilities reported by "Mu Security
Research Team", where bgpd can be made to crash by sending
malformed packets - requires that bgpd be configured with a
session to the peer.
* bgp_attr.c: (bgp_attr_as4_path) aspath_parse may fail, only
set the attribute flag indicating AS4_PATH if we actually managed
to parse one.
(bgp_attr_munge_as4_attrs) Assert was too general, it is possible
to receive AS4_AGGREGATOR before AGGREGATOR.
(bgp_attr_parse) Check that we have actually received the extra
byte of header for Extended-Length attributes.
* bgp_attr.h: Fix BGP_ATTR_MIN_LEN to account for the length byte.
* bgp_open.c: (cap_minsizes) Fix size of CAPABILITY_CODE_RESTART,
incorrect -2 left in place from a development version of as4-path
patch.
* bgp_packet.c: (bgp_route_refresh_receive) ORF length parameter
needs to be properly sanity checked.
* tests/bgp_capability_test.c: Test for empty capabilities.
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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
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2007-09-17 Paul Jakma <paul.jakma@sun.com>
* bgp_open.c: (bgp_capability_mp) We were setting
afc_nego[safi][safi] rather than afc_nego[afi][safi], thus
failling to announce any non-IPv4 prefixes. Remove the extra,
typo-ed character.
* bgp_capability_test.c: Test that peer's adv_recv and adv_nego get
set correctly for MP capability and given AFI/SAFI.
Colour OK/failed result so it's easier to find them.
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2007-07-26 Paul Jakma <paul.jakma@sun.com>
* (general) Clean up and compact capability parsing slightly.
Consolidate validation of length and logging of generic TLV, and
memcpy of capability data, thus removing such from cap specifc
code (not always present or correct).
* bgp_open.h: Add structures for the generic capability TLV header
and for the data formats of the various specific capabilities we
support. Hence remove the badly named, or else misdefined, struct
capability.
* bgp_open.c: (bgp_capability_vty_out) Use struct capability_mp_data.
Do the length checks *before* memcpy()'ing based on that length
(stored capability - should have been validated anyway on input,
but..).
(bgp_afi_safi_valid_indices) new function to validate (afi,safi)
which is about to be used as index into arrays, consolidates
several instances of same, at least one of which appeared to be
incomplete..
(bgp_capability_mp) Much condensed.
(bgp_capability_orf_entry) New, process one ORF entry
(bgp_capability_orf) Condensed. Fixed to process all ORF entries.
(bgp_capability_restart) Condensed, and fixed to use a
cap-specific type, rather than abusing capability_mp.
(struct message capcode_str) added to aid generic logging.
(size_t cap_minsizes[]) added to aid generic validation of
capability length field.
(bgp_capability_parse) Generic logging and validation of TLV
consolidated here. Code compacted as much as possible.
* bgp_packet.c: (bgp_open_receive) Capability parsers now use
streams, so no more need here to manually fudge the input stream
getp.
(bgp_capability_msg_parse) use struct capability_mp_data. Validate
lengths /before/ memcpy. Use bgp_afi_safi_valid_indices.
(bgp_capability_receive) Exported for use by test harness.
* bgp_vty.c: (bgp_show_summary) fix conversion warning
(bgp_show_peer) ditto
* bgp_debug.h: Fix storage 'extern' after type 'const'.
* lib/log.c: (mes_lookup) warning about code not being in
same-number array slot should be debug, not warning. E.g. BGP
has several discontigious number spaces, allocating from
different parts of a space is not uncommon (e.g. IANA
assigned versus vendor-assigned code points in some number
space).
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2006-08-26 Paul Jakma <paul.jakma@sun.com>
* heavy-wq.c: (slow_func_del,slow_func) update to match workqueue
changes
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2006-08-06 Paul Jakma <paul.jakma@sun.com>
* bgp_aspath.c: (aspath_loop_check) Fix the typo-bug which
essentially had disabled this check. Problem reported by
Bartek Kania <mrbk@gnarf.org> in [quagga-users 7388].
* aspath_test.c: (validate) Fix the sense of the aspath_loop_check,
which was the wrong way around and had actually been testing for
aspath_loop_check to be buggy.
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2006-05-28 Paul Jakma <paul.jakma@sun.com>
* test-sig.c: (main) configure logging, there's no terminal
to write to for one thing, but we do want stdout, and we
don't want a test to spam syslog.
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2006-03-16 Paul Jakma <paul.jakma@sun.com>
* heavy-wq.c: (heavy_wq_init) delay is gone from workqueue
spec.
* aspath_test.c: (test_segments) Add an AS_SET with redundant
ASNs.
({empty_prepend,prepend,parse}_test) add static qualifiers
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* aspath_test.c: (validate) free the temporary aspaths.
(empty_get_test) ditto.
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2006-01-10 Paul Jakma <paul.jakma@sun.com>
* test-stream.c: new file, small unit test for new
resize and {put,get}-quad stream functions.
* Makefile.am: build teststream unit test.
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2005-11-23 Paul Jakma <paul.jakma@sun.com>
* aspath_test.c: Add an empty aspath to test segments, and to
compare tests.
Add a segment identical to seq1, but with one extra asn.
Fix bogus free of stream in make_aspath for case where
no stream was allocated (empty path data).
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* test-privs.c: Privileges unit test.
* Makefile.am: build testprivs
* aspath_test.c: fix a few sign warnings
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* aspath_test.c: Test bgp_aspath functionality.
* Makefile.am: build aspathtest
* ChangeLog: Fix date of previous commit
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* test-buffer.c: include memory.h
(main) call memory_init().
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* heavy-wq.c: (slow_func_del,slow_func_err) make them take
void * argument to shut up silly gcc warning.
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* main.c: new file, common 'main' portion which then calls
test_init.
* heavy.c: remove common portions now in 'main.
* heavy-wq.c: ditto
* heavy-thread.c: ditto
* heavy*.c: Set the slow_function iteration number lower, to 300, it
was several orders of magnitude too 'slow' to be useful. :)
* Makefile.am: main is a source of the tests. heavy should link
to the math library.
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* Makefile.am: Build heavythread
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* heavy-thread.c: Andrew Schorr's adaptation of heavy.c to use a
background thread to avoid responsivity problems.
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* heavy.c: Add a timer thread to demonstrate thread interactivity,
Add a daemon_exit command to assist with debugging (eg for memory
tracers, etc..)
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* heavy.c: test programme to show how long-running functions
kill responsiveness. Demonstrating the most niggly problem
left in bgpd.
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* test-buffer.c: Andrew's buffer tester
* test-memory.c: basic memory tester
* Makefile.am: Add new tests
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