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2022-07-27Merge branch 'master' into backportOndrej Zajicek
2022-07-24KRT: Scan routing tables separetely on linux to avoid congestionOndrej Zajicek
Remove compile-time sysdep option CONFIG_ALL_TABLES_AT_ONCE, replace it with runtime ability to run either separate table scans or shared scan. On Linux, use separate table scans by default when the netlink socket option NETLINK_GET_STRICT_CHK is available, but retreat to shared scan when it fails. Running separate table scans has advantages where some routing tables are managed independently, e.g. when multiple routing daemons are running on the same machine, as kernel routing table modification performance is significantly reduced when the table is modified while it is being scanned. Thanks Daniel Gröber for the original patch and Toke Høiland-Jørgensen for suggestions.
2022-07-11Merge remote-tracking branch 'origin/master' into backportMaria Matejka
2022-07-11Merge commit 'beb5f78a' into backportMaria Matejka
2022-07-10Merge version 2.0.10 into backportMaria Matejka
2022-06-27Filter: Implement soft scopesOndrej Zajicek (work)
Soft scopes are anonymous scopes that most likely do not contain any symbol, so allocating regular scope is postponed when it is really needed.
2022-06-27Preexport callback now takes the channel instead of protocol as argumentMaria Matejka
Passing protocol to preexport was in fact a historical relic from the old times when channels weren't a thing. Refactoring that to match current extensibility needs.
2022-06-04IO: Improve resolution of latency debugging messagesOndrej Zajicek
2022-04-13Fixed a munmap abort bugMaria Matejka
When BIRD was munmapping too many pages, it sometimes aborted, saying that munmap failed with "Not enough memory" as the address space was getting more and more fragmented. There is a workaround in place, simply keeping that page for future use, yet it has never been compiled in because I somehow forgot to include errno.h. And because I also thought that somebody may have ENOMEM not defined (why?!), there was a check which quietly omitted that workaround. Anyway, ENOMEM is POSIX. It's an utter nonsense to check for its existence. If it doesn't exist, something is broken.
2022-04-06Protocols have their own explicit init routinesMaria Matejka
2022-03-09Fixed a static assert in page allocatorMaria Matejka
2022-03-09Merge commit '60880b539b8886f76961125d89a265c6e1112b7a' into haugesundMaria Matejka
2022-03-09Merge commit 'e42eedb9' into haugesundMaria Matejka
2022-03-09Merge commit '5cff1d5f' into haugesundMaria Matejka
Conflicts: proto/bgp/attrs.c proto/pipe/pipe.c
2022-03-09Merge commit 'd5a32563' into haugesundMaria Matejka
2022-03-09Fixed resource initialization in unit testsMaria Matejka
2022-03-09Merge commit '0c59f7ff' into haugesundMaria Matejka
2022-03-09Revert "Bound allocated pages to resource pools with page caches to avoid ↵Maria Matejka
unnecessary syscalls" This reverts commit 7f0e59820899c30a243c18556ce2e3fb72d6d221.
2022-03-09Revert "Multipage allocation"Maria Matejka
This reverts commit 6cd37713781a3092f8166b2178fae35cbfec1e28.
2022-03-09Single-threaded version of sark-branch memory page managementMaria Matejka
2022-03-02Introducing an universal temporary linpool flushed after every taskMaria Matejka
2022-03-02Merge commit '2c13759136951ef0e70a3e3c2b2d3c9a387f7ed9' into haugesundMaria Matejka
2022-02-08Alloc: Use posix_memalign() instead of aligned_alloc()Ondrej Zajicek (work)
For compatibility with older systems use posix_memalign(). We can switch to aligned_alloc() when we commit to C11 for multithreading.
2022-01-08IO: Support nonlocal bind in socket interfaceAlexander Zubkov
Add option to socket interface for nonlocal binding, i.e. binding to an IP address that is not present on interfaces. This behaviour is enabled when SKF_FREEBIND socket flag is set. For Linux systems, it is implemented by IP_FREEBIND socket flag. Minor changes done by commiter.
2021-11-24Directly mapped pages are kept for future use if temporarily not neededMaria Matejka
2021-10-13Kernel: Convert the rte-local attributes to extended attributes and flags to ↵Maria Matejka
pflags
2021-10-13Route: moved rte_src pointer from rta to rteMaria Matejka
It is an auxiliary key in the routing table, not a route attribute.
2021-10-13Preexport: No route modification, no linpool neededMaria Matejka
2021-10-13RIP fixup + dropping the tmp_attrs mechanism as obsoleteMaria Matejka
2021-10-13Preference moved to RTA and set explicitly in protocolsMaria Matejka
2021-10-13Multipage allocationMaria Matejka
We can also quite simply allocate bigger blocks. Anyway, we need these blocks to be aligned to their size which needs one mmap() two times bigger and then two munmap()s returning the unaligned parts. The user can specify -B <N> on startup when <N> is the exponent of 2, setting the block size to 2^N. On most systems, N is 12, anyway if you know that your configuration is going to eat gigabytes of RAM, you are almost forced to raise your block size as you may easily get into memory fragmentation issues or you have to raise your maximum mapping count, e.g. "sysctl vm.max_map_count=(number)".
2021-10-13CLI socket accept() may also fail and should produce some message, not a ↵Maria Matejka
coredump.
2021-09-10Bound allocated pages to resource pools with page caches to avoid ↵Maria Matejka
unnecessary syscalls
2021-09-10Debug output uses local buffer to avoid clashes between threads.Maria Matejka
2021-09-10Nest: Clean up main channel handlingOndrej Zajicek (work)
Remove assumption that main channel is the only channel.
2021-06-17Nest: Clean up main channel handlingOndrej Zajicek (work)
Remove assumption that main channel is the only channel.
2021-06-06sysdep: Add wrapper to get random bytes - updateOndrej Zajicek (work)
Simplify the code and fix an issue with getentropy() return value.
2021-06-06sysdep: Add wrapper to get random bytesToke Høiland-Jørgensen
Add a wrapper function in sysdep to get random bytes, and required checks in configure.ac to select how to do it. The configure script tries, in order, getrandom(), getentropy() and reading from /dev/urandom.
2021-04-07Unix: Expand accepted ranges of iproute2 constantsOndrej Zajicek (work)
We support 32bit table and realm/flow ids, we should also accept them as constants. Thanks to Patrick Hemmer for the bugreport.
2021-03-30Routing table is now a resource allocated from its own poolMaria Matejka
This also fixes memory leaks from import/export tables being never cleaned up and freed.
2021-03-25Slab: head now uses bitmask for used/free nodes info instead of listsMaria Matejka
From now, there are no auxiliary pointers stored in the free slab nodes. This led to strange debugging problems if use-after-free happened in slab-allocated structures, especially if the structure's first member is a next pointer. This also reduces the memory needed by 1 pointer per allocated object. OTOH, we now rely on pages being aligned to their size's multiple, which is quite common anyway.
2021-03-12Rate-limit scheduling of work-eventsOndrej Zajicek (work)
In general, events are code handling some some condition, which is scheduled when such condition happened and executed independently from I/O loop. Work-events are a subgroup of events that are scheduled repeatedly until some (often significant) work is done (e.g. feeding routes to protocol). All scheduled events are executed during each I/O loop iteration. Separate work-events from regular events to a separate queue and rate limit their execution to a fixed number per I/O loop iteration. That should prevent excess latency when many work-events are scheduled at one time (e.g. simultaneous reload of many BGP sessions).
2021-02-10BGP: Add support for BGP hostname capabilityVincent Bernat
This is an implementation of draft-walton-bgp-hostname-capability-02. It is implemented since quite some time for FRR and in datacenter, this gives a nice output to avoid using IP addresses. It is disabled by default. The hostname is retrieved from uname(2) and can be overriden with "hostname" option. The domain name is never set nor displayed. Minor changes by committer.
2021-01-07Kernel: Do not check templatesOndrej Zajicek (work)
So one can define kernel protocol template without channels. For other protocols, it is either irrelevant or already done. Thanks to Clemens Schrimpe for the bugreport.
2020-11-25Log: Fix locking during log reconfigurationOndrej Zajicek (work)
The log subsystem should be locked earlier, as default_log_list() may internally manipulate with the current_log_list (if it is also a default log list).
2020-11-25Log: Reinitialize the static logging structuresOndrej Zajicek (work)
The static logging structures are reused, we need to reinitialize them otherwise add_tail() would fail in debug build. Reinitializing these structures should be fine as the list they belong to is being reinitialized on entry to the very same function. Thanks to Andreas Rammhold and Mikael Magnusson for patches.
2020-06-03Log: Do not open logfiles when parse-and-exit option is activeOndrej Zajicek (work)
This is a quick workaround for an issue where configured logfiles are opened/created during parsing of a config file even when parse-and-exit option is active. We should later refactor the logging code to avoid opening log during parsing altogether.
2020-05-01Unix socket: Path length check directly before copying the path.Maria Matejka
This is not needed as the string is always short enough, anyway it may be needed in future and one strlen during BIRD start is cheap enough.
2020-05-01Nest: Added const to ea_show just to declare that this shouldn't really ↵Maria Matejka
change anything
2020-04-09Configuration strings are constant.Maria Matejka
This is merely a const propagation. There was no problem in there.