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authorPaul Jakma <paul@quagga.net>2012-01-18 12:28:30 +0000
committerPaul Jakma <paul@quagga.net>2012-02-28 18:35:45 +0000
commit835315bfb49bff2b2fb354f2075c6d6693c2a151 (patch)
treeb9cc49ef796bcb1e3836ff670da930765815acfa /ospfd/OSPF-MIB.txt
parent3ecab4c8549574d09f8d8366098939a8ad3da6c4 (diff)
bgpd: Move up flag-check calls, parcel up attr-parser args, and other cleanups
* bgp_attr.h: (struct bgp_attr_parser_args) Attribute parsing context, containing common arguments. * bgp_attr.c: (general) Move the bgp_attr_flag_invalid flag-check calls up, out of each individual attr parser function, to be done once in attr_parse. Similarly move the calculation of the 'total' attribute length field up to attr_parse. Bundle together common arguments to attr-parsing functions and helpers into (struct bgp_attr_parser_args), so it can be passed by reference down the stack & also de-clutter the argument lists & make it easier to add/modify the context for attr-parsing - add local const aliases to avoid modifying body of code too much. This also should help avoid cut & paste errors, where calls to helpers with hard-coded attribute types are pasted to other functions but the code isn't changed. (bgp_attr_flags_diagnose) as above. (bgp_attr_flag_invalid) as above. (bgp_attr_{origin,aspath,as4_path,nexthop,med,local_pref,atomic}) as above. (bgp_attr_{aggregator,as4_aggregator,community,originator_id}) as above (bgp_attr_{cluster_list,ext_communities},bgp_mp_{un,}reach_parse) as above (bgp_attr_unknown) as above. (bgp_attr_malformed) as above. Also, startp and length have to be special-cased, because whether or not to send attribute data depends on the particular error - a separate length argument, distinct from args->length, indicates whether or not the attribute data should be sent in the NOTIFY. (bgp_attr_aspath_check) Call to bgp_attr_malformed is wrong here, there is no attribute parsing context - e.g. the 'flag' argument is unlikely to be right, remove it. Explicitly handle the error instead. (bgp_attr_munge_as4_attrs) Flag argument is pointless. As the comment notes, the check here is pointless as AS_PATH presence already checked elsewhere. (bgp_attr_parse) Do bgp_attr_flag_invalid call here. Use (struct bgp_attr_parser_args) for args to attr parser functions. Remove out-of-context 'flag' argument to as4 checking functions.
Diffstat (limited to 'ospfd/OSPF-MIB.txt')
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