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authorpaul <paul>2005-09-10 16:55:02 +0000
committerpaul <paul>2005-09-10 16:55:02 +0000
commitfe69a505f7be4357bf8523e3bbdced9c95590f3a (patch)
tree6d2450016eb19f30b153b2439d06ade68d1b8f12 /vtysh
parent1f8ae70b7b86d132b95a18f0c824deb248987afc (diff)
2005-09-10 Paul Jakma <paul.jakma@sun.com>
* Makefile.am: bgpd shouldn't list libgp's sources as its own. Use LDADD. * bgp_aspath.h: (struct assegment) New struct, abstract representation of a list of AS_PATH segments and the contained ASNs. (struct aspath) Remove the raw-data related fields, reference the abstract struct assegment instead. Remove several other computed fields, it's just a headache to maintain them and they're cheap to compute from struct assegment. (aspath_parse) parse a stream, not a pointer to raw data. (aspath_count_{hops,confeds,size}) helpers to access information formerly directly contained in struct aspath. (aspath_snmp_pathseg) Helper for SNMP, BGP MIB wants to be able to output hex representation of raw data. * bgp_aspath.c: (general) partial-rewrite. Store aspath data as an abstract singly-linked list of abstract segments, rather than storing the raw data, and parsing it each and every time. Remove several count/size fields which are cheap to compute from the abstract segment structure. (global) Include stream.h, needed for aspath_parse, and others. Couple of helper macros added. (struct assegment_header) Just the header, and only the header. (assegment_data_{new,free}) convenience functions for AS_SEG_DATA allocation, the dynamic, per-segment array of ASNs. (assegment_{new,free,free_all,dup,dup_all}) convenience functions for creating struct assegments. The _all forms will follow the entire chain of segments from the given segment. (assegment_prepend_asns) new function, prepend an ASN N times to segment. (assegment_append_asns) Append a list (array) of ASNs to segment. (int_cmp) convenience function for the aspath hash. (assegment_normalise) new function. Normalise the given segment chain to meet expectations of Quagga, and to eliminate differing raw representations of the same paths. Merge 'runs' of SEQUENCEs into one segment as our internal segment is not limited by the protocol AS_PATH segment length. Sort ASNs in SETs. (aspath_new) Take void argument to quell warnings. Use the assegment convenience functions. (assegment_count_{asns,confeds,hops}) new functions to compute at runtime values previously held in struct aspath. (aspath_size) ditto. (aspath_make_str_count) rewritten to stringify new representation, and to be slightly easier to understand hopefully. (aspath_str_update) convenience function, update the aspath str. Should investigate removing maintained string from struct aspath, just run-time compute it, as per other fields. It's just a maintenance headache, would save noticeable amount of RAM with possibly not much extra run-time cost. (aspath_dup) use the assegment dup functions. (aspath_hash_alloc) Take void * argument to satisfy gcc. Use the proper helper functions to dup data. (assegments_parse) new function. parse raw AS_PATH data into struct assegments. Normalise and return the head of the list. (aspath_parse) Parse a stream, not pointer to raw data and use assegments_parse to do it. (assegment_data_put) Write out a single segment data in protocol form to stream. (assegment_header_put) ditto but for segment header. (aspath_put) new function. As per previous but for an entire struct aspath. (aspath_snmp_pathseg) wrapper around aspath_put for bgp_snmp.c. Uses a static buffer sadly. (aspath_aggregate_as_set_add) rewritten to use assegments. (aspath_aggregate) ditto (aspath_{firstas,loop,private_as}_check) ditto (aspath_{merge,prepend,add_one_as}) ditto (aspath_cmp_left{_confed}) ditto (aspath_delete_confed_seq) ditto, plus fixed to properly delete all leading confed segments. (aspath_as_add) Just use assegment_append_asns. (aspath_segment_add) updated to use assegments. (enum as_token) Add values for confeds (aspath_gettoken) Add support for confeds (aspath_str2aspath) ditto (aspath_key_make) updated to use as_segments. Also, add segment type into the hash value as appropriate. (aspath_cmp) updated to use as_segments. (aspath_print) don't segfault on NULL argument. * bgp_attr.c: (bgp_attr_aspath) aspath_parse wants the stream now. No need for manual forwarding of stream. (bgp_packet_attribute) empty aspath is now denoted by NULL segment field, length is gone. Use aspath_size() to determine size. (bgp_attr_init) Fix declaration, explicitely specify void arg. (bgp_dump_routes_attr) Use aspath_size() to determine size. * bgp_route.c: (bgp_info_cmp) use the aspath_count_* functions. (bgp_rib_withdraw) remove unused variable. Use aspath_count_hops. * bgp_snmp.c: (bgp4PathAttrTable) raw data is gone, use aspath_snmp_pathseg to get the representation.
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