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Protocol hooks deserve an extra chapter (to come soon).
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Please try compiling your code with --enable-warnings to see them. (The
unused parameter warnings are usually bogus, the unused variable ones
are very useful, but gcc is unable to control them separately.)
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call ev_schedule() on the same handler which should work perfectly now.
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restarts of BGP seem to work now.
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of calling the protocols manually.
Implemented printing of dynamic attributes in `show route all'.
Each protocol can now register its own attribute class (protocol->attr_class,
set to EAP_xxx) and also a callback for naming and formatting of attributes.
The callback can return one of the following results:
GA_UNKNOWN Attribute not recognized.
GA_NAME Attribute name recognized and put to the buffer,
generic code should format the value.
GA_FULL Both attribute name and value put to the buffer.
Please update protocols generating dynamic attributes to provide
the attr_class and formatting hook.
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and other non-portable functions on all systems.
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several debug() calls converted to DBG().
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in configuration files and commands for manipulating them.
Current debug message policy:
o D_STATES, D_ROUTES and D_FILTERS are handled in generic code.
o Other debug flags should be handled in the protocols and whenever
the flag is set, the corresponding messages should be printed
using calls to log(L_TRACE, ...), each message prefixed with
the name of the protocol instance. These messages should cover
the whole normal operation of the protocol and should be useful
for an administrator trying to understand what does the protocol
behave on his network or who is attempting to diagnose network
problems. If your messages don't fit to the categories I've defined,
feel free to add your own ones (by adding them to protocol.h
and on two places in nest/config.Y), but please try to keep the
categories as general as possible (i.e., not tied to your protocol).
o Internal debug messages not interesting even to an experienced
user should be printed by calling DBG() which is either void or
a call to debug() depending on setting of the LOCAL_DEBUG symbol
at the top of your source.
o Dump functions (proto->dump etc.) should call debug() to print
their messages.
o If you are doing any internal consistency checks, use ASSERT
or bug().
o Nobody shall ever call printf() or any other stdio functions.
Also please try to log any protocol errors you encounter and tag them
with the appropriate message category (usually L_REMOTE or L_AUTH). Always
carefully check contents of any message field you receive and verify all
IP addresses you work with (by calling ipa_classify() or by using the
neighbour cache if you want to check direct connectedness as well).
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for calculation of hash functions depending on proto.
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It seems everything still works (except for disable/enable/restart which hangs
sometimes, but it's another story).
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(to avoid the name being freed with the old config).
Also remember to add proto_pipe to protocol_list.
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(proto_list) and per-type one (original lists). A lot of things simplified.
Implemented `disable', `enable' and `restart' CLI commands.
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Pavel, please implement this as soon as possible.
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as a exception in protocol state machines. Introduced a `shutdown'
CLI command. Killed few reconfiguration bugs.
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and problems to solve, but the hardest part works.
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export host and link scope routes.
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Added sysdep configuration hooks.
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of a given protocol with optionally given name. See `show static' for an
example.
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status information (obtained via newly introduced hook protocol->get_status).
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`show protocols <name>'.
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show protocols (incomplete).
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for processing in next event cycle. This can be used to prevent background
actions (hint: user commands) from hogging the CPU for too long time.
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o Make proto_config->table always point to the right
table even if it should be the default one.
o When shutting down, kill protocol in reverse order
of their priority.
o When stopping a protocol down, disconnect it from
routing tables immediately instead of waiting
for the delayed protocol flush event.
Also added a protocol instance counter (used by KRT code
in very magic ways).
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definitely gone. Both rte_update() and rte_discard() have an additional
argument telling which table should they modify.
Also, rte_update() no longer walks the whole protocol list -- each table
has a list of all protocols connected to this table and having the
rt_notify hook set. Each protocol can also freely decide (by calling
proto_add_announce_hook) to connect to any other table, but it will
be probably used only by the table-to-table protocol.
The default debugging dumps now include all routing tables and also
all their connections.
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version:
EXPORT <filter-spec> for outbound routes (i.e., those announced
by BIRD to the rest of the world).
IMPORT <filter-spec> for inbound routes (i.e., those imported
by BIRD from the rest of the world).
where <filter-spec> is one of:
ALL pass all routes
NONE drop all routes
FILTER <name> use named filter
FILTER { <filter> } use explicitly defined filter
For all protocols, the default is IMPORT ALL, EXPORT NONE. This includes
the kernel protocol, so that you need to add EXPORT ALL to get the previous
configuration of kernel syncer (as usually, see doc/bird.conf.example for
a bird.conf example :)).
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i.e. struct proto now contains field 'table' pointing to routing table
the protocol is attached to. Use this instead of &master_table.
Modified all protocols except the kernel syncer to use this field.
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modifying filters yet) to be attached to protocol instances.
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immediately. Grrr, need to find a real solution some day.
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default zero priority). No more "kernel syncer initialized before
device routes" problems.
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test the whole protocol shutdown code... :)
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