98e87c8628
#define L_DEBUG "\001" /* Debugging messages */ #define L_INFO "\002" /* Informational messages */ #define L_WARN "\003" /* Warnings */ #define L_ERR "\004" /* Errors */ #define L_AUTH "\005" /* Authorization failed etc. */ #define L_FATAL "\006" /* Fatal errors */ #define L_TRACE "\002" /* Protocol tracing */ #define L_INFO "\003" /* Informational messages */ #define L_REMOTE "\004" /* Remote protocol errors */ #define L_WARN "\004" /* Local warnings */ #define L_ERR "\005" /* Local errors */ #define L_AUTH "\006" /* Authorization failed etc. */ #define L_FATAL "\007" /* Fatal errors */ #define L_BUG "\010" /* BIRD bugs */ Introduced bug() which is like die(), but with level L_BUG. Protocols should _never_ call die() as it should be used only during initialization and on irrecoverable catastrophic events like out of memory. Also introduced ASSERT() which behaves like normal assert(), but it calls bug() when assertion fails. When !defined(DEBUGGING), it gets ignored.
88 lines
2.7 KiB
Plaintext
88 lines
2.7 KiB
Plaintext
Core
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~~~~
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* right usage of DBG vs. debug
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* cleanup debugging calls
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* logging and tracing; use appropriate log levels
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* check log calls for trailing newlines
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- TOS not supported by kernel -> automatically drop routes with TOS<>0
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- fake multipath?
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- replace all NUM's by expr's
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- config file: define ipaddr constants?
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- counters (according to SNMP MIB?)
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- ifdef out some debugging code?
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- better memory allocators
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- default preferences of protocols: prefer BGP over OSPF/RIP external routes?
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- secondary addresses -> subinterfaces
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- check if all protocols set proper packet priorities and TTL's.
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- better default protocol names
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- config: comments at end of line -> explicit ';' needed?
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- remove post-config hooks?
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- command-line arguments: name of config file
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- static: check validity of route destination?
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- static: device routes
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- device: configuration of interface patterns
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- filter: logging of dropped routes (?)
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- limitation of memory consumption: per-process and total (?)
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- adding of route: check whether all bits not covered by masklen are zero
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- switch: generate default route only if at least one BGP connection exists (?)
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- route recalculation timing + flap dampening (?)
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- "generate default route" switch for all IGP's
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- Check incoming packets and log errors!!
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RIP
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~~~
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- RIP: export-only and import-only mode?
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- drop RIPv1 (Historic protocol)?
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- Route Tag
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- limit routing table xfer (frequency, only to neighbors)
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- multicast on/off (per interface)
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- remember routes for all neighbors?
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OSPF
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~~~~
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- point-to-point interface with address: advertise as stub network
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- static routes: stub networks?
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- modes: PtP, PtP-unnumbered, Broadcast, NBMA, point-to-multipoint
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- importing of device routes for networks where we don't run OSPF
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- tie breaking for equal type 2 ext metrics by using internal (type 1) metric
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- SPF tree recalc timing (per-area timers?)
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- aggregation: specify network list for each area
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- stub area: either no external routes or only default route
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- automatic generation of external route tags (RFC1403)
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BGP
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~~~
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- in, local, out RIB
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- maxsize=4096
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- detection of loops
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- aggregation, ATOMIC_AGGREGATE
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- communities
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- confederations
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- attributes must be sorted!
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- re-export of NEXT_HOP attribute
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- BGP session over currently down interface
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- route flap dampening?
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- LOCAL_PREF attribute
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- error notification received -> log error
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- set TTL to 1 (configurable?)
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- consulting IGP for next-hop information? (what if it changes?)
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- inter-advertisement delay???!
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- normalize (sort) incoming AS-SET's
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- maximum length of AS paths
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- expected neighbor AS
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- hold time
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- idle timer after error: initial value, exponential growth, maximum value
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- import of IGP routes (use external route tags from OSPF)
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