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1999-03-24Removed our declaration of RTPROT_BIRD since Alexey has assignedMartin Mares
us a real protocol number in 2.2.4 kernel.
1999-03-04Fixed processing of !krt_capable() routes. Converted device route decisionsMartin Mares
to the krt_capable mechanism as well.
1999-03-04KRT: Implemented asynchronous route / interface state notificationsMartin Mares
(via Netlink). Tweaked kernel synchronization rules a bit. Discovered locking bug in kernel Netlink :-) Future plans: Hunt all the bugs and solve all the FIXME's.
1999-03-04Although there are still heaps of FIXME's, Netlink works.Martin Mares
To build BIRD with Netlink support, just configure it with ./configure --with-sysconfig=linux-21 After it will be tested well enough, I'll probably make it a default for 2.2 kernels (and rename it to linux-22 :)).
1999-03-04Converted some mb_alloc/bzero pairs to mb_allocz.Martin Mares
1999-03-04Use dmalloc instead of EFence when available (dmalloc has lot of improvementsMartin Mares
over EFence and also hopefully smaller memory overhead, but sadly it's non-free for commercial use). If the DMALLOC_OPTIONS environment variable is not set, switch on `reasonable' checks by default. Also introduced mb_allocz() for cleared mb_alloc().
1999-03-03Netlink scans routes...Martin Mares
1999-03-03Fix several things I broke today.Martin Mares
1999-03-03Rewrote the kernel syncer. The old layering was horrible.Martin Mares
The new kernel syncer is cleanly split between generic UNIX module and OS dependent submodules: - krt.c (the generic part) - krt-iface (low-level functions for interface handling) - krt-scan (low-level functions for routing table scanning) - krt-set (low-level functions for setting of kernel routes) krt-set and krt-iface are common for all BSD-like Unices, krt-scan is heavily system dependent (most Unices require /dev/kmem parsing, Linux uses /proc), Netlink substitues all three modules. We expect each UNIX port supports kernel routing table scanning, kernel interface table scanning, kernel route manipulation and possibly also asynchronous event notifications (new route, interface state change; not implemented yet) and build the KRT protocol on the top of these primitive operations.
1999-03-02Netlink module supports interface scan on startup. Working on more.Martin Mares
1999-03-02o The if_change_too_big_p change was too high-spirited. Fixed.Martin Mares
o Introduced if_find_by_index() o Recognizing two types of interface updates: full update (starting with if_start_update(), ending with if_end_update(), guaranteed to see all existing interfaces) and a partial update (only if_update(), usually due to asynchronous interface notifications).
1999-03-02Interface logic changes:Martin Mares
o Introduced IF_LINK_UP flag corresponding to real link state. o Allowed addressless interfaces. o IF_UP is now automatically calculated and set iff the interface is administratively up, has link up and has an IP address assigned. It may be IF_IGNORED, though (as in case of the loopback). o Any changes which include up/down transition are considered small enough to not provoke artificial upping and downing of the interface. o When an interface disappears (i.e., it wasn't seen in the last scan), we announce this change only once. o IF_LOOPBACK implies IF_IGNORE.
1999-03-01Implemented netlink protocol parsing functions. More to come tomorrow.Martin Mares
1999-03-01Added SK_MAGIC type sockets for internal use by system dependent code,Martin Mares
especially for netlink communication.
1999-03-01Added skeletal version of Linux netlink interface. It doesn't work yet,Martin Mares
but the framework is there and I'll try finish it soon.
1999-03-01Include "config.h" instead of "autoconf.h" in all Modules lists to make definesMartin Mares
in the static portion of configuration includes available as well.
1999-03-01Use traditional Unix route/iface interface only when CONFIG_NETLINKMartin Mares
is not defined. Also moved declarations of Unix iface logic to krt.h.
1999-02-13When shutting down, remove all routes (except for RTS_INHERIT and RTS_DEVICEMartin Mares
routes) from kernel routing tables unless the "persist" switch is set.
1999-02-13Moved sanity check of protocol state during annoucements to rte_announce.Martin Mares
1999-02-13Perform gracious shutdown upon receipt of SIGTERM. Finally we canMartin Mares
test the whole protocol shutdown code... :)
1999-02-13Squashed one bug in timing of route scans.Martin Mares
1999-02-13Synchronize signals to the main select/event/timer loop.Martin Mares
Parse command line options.
1999-02-13config->router_id works again.Martin Mares
1999-02-11Run the event queue before writing SIGUSR dumps.Martin Mares
1999-02-11Added simple event scheduling system to avoid recursive callingMartin Mares
of various callbacks. Events are just another resource type objects (thus automatically freed and unlinked when the protocol using them shuts down). Each event can be linked in at most one event list. For most purposes, just use the global event list handled by the following functions: ev_schedule Schedule event to be called at the next event scheduling point. If the event was already scheduled, it's just re-linked to the end of the list. ev_postpone Postpone an already scheduled event, so that it won't get called. Postponed events can be scheduled again by ev_schedule(). You can also create custom event lists to build your own synchronization primitives. Just use: ev_init_list to initialize an event list ev_enqueue to schedule event on specified event list ev_postpone works as well for custom lists ev_run_list to run all events on your custom list ev_run to run a specific event and dequeue it
1999-02-05Synced Linux sysdeps to new interface.Martin Mares
1999-02-05Synced kernel interface to new interface.Martin Mares
1999-02-05Implemented new configuration/reconfiguration interface and defined protocolMartin Mares
state machines. Full explanation will follow soon.
1999-01-15filters_init() renamed to filters_postconfig().Pavel Machek
1999-01-15Filters, second try. This time they have their own directory.Pavel Machek
1999-01-15Properly initialize filters. Also bumped version to 0.0.0 as itPavel Machek
actually does something.
1999-01-10New makefiles. Includes support for out-of-source-tree builds.Martin Mares
1999-01-09First step of "autoconfization". Created a configure script whichMartin Mares
guesses most system-dependent parameters and determines name of system configuration file (sysdep/cf/...) with the remaining ones. To compile BIRD, you now need to do: autoconf # Create configure from configure.in ./configure # Run configure script make # Compile everything Configuration files: sysdep/config.h Master config file sysdep/autoconf.h Parameters determined by configure script sysdep/cf/*.h Fixed system configuration we're unable to guess. Makefiles are still the original ones, but this will change soon.
1998-12-20die() -> bug() where appropriate.Martin Mares
1998-12-20Finer grained logging levels:Martin Mares
#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.
1998-12-08Hopefully finished kernel syncer (krt) rewrite:Martin Mares
o Interface syncing is now a part of krt and it can have configurable parameters. Actually, the only one is scan rate now :) o Kernel routing table syncing is now synchronized with interface syncing (we need the most recent version of the interface list to prevent lots of routes to non-existent destinations from appearing). Instead of its own timer, we just check if it's route scan time after each iface list scan. o Syncing of device routes implemented. o CONFIG_AUTO_ROUTES should control syncing of automatic device routes. o Rewrote krt_remove_route() to really remove routes :) o Better diagnostics. o Fixed a couple of bugs.
1998-12-08Rewritten kernel syncer. Now uses the rta trickery I've introduced yesterdayMartin Mares
and does things "the right way". Few things are still missing (device routes etc.), I'll add them later in the evening.
1998-12-07Comparison of kernel reject routes fixed.Martin Mares
1998-12-07KRF_* flags moved to krt.h as they are internal to kernel syncer,Martin Mares
fib->pad0,pad1 renamed to x0,x1 and in case of struct net x0 is reserved for kernel syncing as well.
1998-12-06Kernel syncer is now configurable. It will probably need some moreMartin Mares
options, but at least basic tuning is possible now.
1998-11-29Renamed `DEBUG' symbol to `DEBUGGING' to prevent collisions with tokenMartin Mares
names and include files.
1998-11-27First attempt at protocol configuration (now done only for RIP).Martin Mares
1998-11-27Compile and use the new configuration code by default.Martin Mares
1998-11-27Added path to config file.Martin Mares
1998-11-16Complain loudly if the logging buffer would overflow.Martin Mares
1998-10-20Learn static device routes from the kernel (temporary until we can makeMartin Mares
such things configurable).
1998-10-19Generate router_id automatically if possible (standard "smallest of localMartin Mares
regular interface addresses" rule). Protocols should NOT rely on router_id existence -- when router ID is not available, the router_id variable is set to zero and protocols requiring valid router ID should just refuse to start, reporting such error to the log.
1998-10-19Basic kernel routing table syncing implemented. Learning of routes installedMartin Mares
by other programs or the kernel itself is not supported yet, but it's not needed for development of other protocols.
1998-10-19Use (SOCK_DGRAM,IPPROTO_IP) socket instead of (SOCK_STREAM,IPPROTO_TCP).Martin Mares
This is exactly what Linux ifconfig does and seems to be the preferred way.
1998-10-19Exporting fill_in_sockaddr() for use by other unix-dependent code.Martin Mares