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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.
2020-03-07Netlink: Handle interfaces with missing broadcast addressesOndrej Zajicek (work)
2020-02-27BGP: Support for MD5SIG together with remote rangeOndrej Zajicek (work)
When dynamic BGP with remote range is configured, MD5SIG needs to use newer socket option (TCP_MD5SIG_EXT) to specify remote addres range for listening socket. Thanks to Adam Kułagowski for the suggestion.
2020-02-04Conf: Better error message when reading iproute2 configMaria Matejka
Reported by: Martin Weinelt <martin@darmstadt.freifunk.net>
2020-01-07KRT: Improve syncer code to avoid using temporary data in rtableOndrej Zajicek (work)
The old code stored route verdicts and temporary routes directly in rtable. The new code do not store received routes (it immediately compares them with exported routes and resolves conflicts) and uses internal bitmap to keep track of which routes were received and which needs to be reinstalled. By not putting 'invalid' temporary routes to rtable, we keep rtable in consistent state, therefore scan no longer needs to be atomic operation and could be splitted to multiple events.
2019-12-19KRT: Remove KRF_SYNC_ERROR flagOndrej Zajicek (work)
This info is now stored in an internal bmap. Unfortunately, net.flags is still needed for temporary kernel data.
2019-12-17KRT: Fix removal of KRF_INSTALLEDOndrej Zajicek (work)
Use route id from net->routes to check export_map. Route received from sysdep KRT code does not have proper id.
2019-12-16KRT: Remove KRF_INSTALLED flagOndrej Zajicek (work)
The same information is stored in export_map of kernel protocol.
2019-11-26Nest: Use bitmaps to keep track of exported routesOndrej Zajicek (work)
Use a hierarchical bitmap in a routing table to assign ids to routes, and then use bitmaps (indexed by route id) in channels to keep track whether routes were exported. This avoids unreliable and inefficient re-evaluation of filters for old routes in order to determine whether they were exported.
2019-11-12Netlink: Handle IPv4 routes with IPv6 nexthopsOndrej Zajicek
Accept RTA_VIA attribute in all cases. The old code always used RTA_GATEWAY for IPv4 / IPv6 and RTA_VIA for MPLS. The new code uses RTA_VIA in cases where AF of network and AF of nexthop differs.
2019-10-22Accept uppercase letters in iproute2 namesOndrej Zajicek
Names read from texfiles in /etc/iproute2/* are normalized by replacing non-alphanumeric chars with underscore. The patch fixes handling of uppercase letters, which were handled as non-alphanumberic. Thanks to Igor Gavrilov for the bugreport.
2019-10-11NEWS and version updatev2.0.7Ondrej Zajicek (work)
2019-10-09Lib: Support for 64-bit numbers in bvsnprintf()Ondrej Zajicek (work)
Use 'l' for s64/u64 instead of for long/ulong, as that is much more useful. Also make number() correct with regard to signed/unsigned typecasts.
2019-10-04Fixed undefined behavior on signals.Maria Matejka
The C11 specification allows only sig_atomic_t and _Atomic variable access. All other accesses to global variables are undefined behavior. Using int was probably OK on x86 and x86_64; yet there were some reports from other architectures (especially some MIPS) that in rare cases, after issuing SIGHUP, BIRD did strange things.
2019-09-23Nest: Fix help for 'graceful restart' commandOndrej Zajicek (work)
Multi-worded commands are not automatically added to top-level help output. Thanks to Christoph for the bugreport.
2019-09-10NEWS and version updatev2.0.6Ondrej Zajicek (work)
2019-08-21Sysdep: Drop supplementary groups when dropping GIDOndrej Zajicek (work)
We forgot to do that. Oops.
2019-07-31NEWS and version updateOndrej Zajicek (work)
2019-07-31Change 'graceful down' command to 'graceful restart' and update docsOndrej Zajicek (work)
The command initiating planned graceful restart including bird shutdown should be called 'graceful restart' instead of 'graceful down', as the later should be reserved for graceful shutdown in style of RFC 8326.
2019-07-30Log: Fixed race condition in reconfigure while BFD is runningMaria Matejka
2019-07-24Merge remote-tracking branch 'origin/mq-filter-stack'Ondrej Zajicek (work)
2019-07-23RPKI: Fix reconfiguration when ssh parameters are undefinedOndrej Zajicek (work)
2019-07-15Netlink: Fix parsing of multipath routes with MPLS labelsOndrej Zajicek (work)
2019-07-15Netlink: Use route replace for IPv4Ondrej Zajicek (work)
Use route replace netlink op instead of delete+add netlink ops for kernel IPv4 route replace. This avoids some packetloss during route replace. Still use the old behavior for IPv6, as some kernel bugs are hidden in IPv6 ECMP handling.
2019-07-10Merge branch 'master' into mq-filter-stackMaria Matejka
2019-07-10Debug: growing message format bufferMaria Matejka
This led in corner cases to undefined buffer content and garbage output.
2019-07-03Merge branch 'master' into mq-filter-stackMaria Matejka
2019-07-03Dynamic attributes definition split whether it is bitmask or not.Maria Matejka
2019-07-02Netlink: Handle alien routes with unsorted nexthopsOndrej Zajicek (work)
Nest requires that nexthops are sorted, the kernel protocol have to ensure that for alien routes.
2019-07-02Netlink: Do unified scan for both IPv4 and IPv6Ondrej Zajicek (work)
Instead of separate scans for IPv4, IPv6 and MPLS, do one AF_UNSPEC scan. This also avoids kernel issue when kernel reported IPv4 and IPv6 routes during MPLS scan if MPLS is not active.
2019-06-30Nest: Add command to request graceful restartOndrej Zajicek (work)
When 'graceful down' command is entered, protocols are shut down with regard to graceful restart. Namely Kernel protocol does not remove routes and BGP protocol does not send notification, just closes the connection.
2019-06-12Add CLI command to test reconfiguration statusOndrej Zajicek (work)
Based on patch from Kenth Eriksson <kenth.eriksson@infinera.com>.
2019-04-30BGP: Dynamic BGPOndrej Zajicek (work)
Support for dynamically spawning BGP protocols for incoming connections. Use 'neighbor range' to specify range of valid neighbor addresses, then incoming connections from these addresses spawn new BGP instances.
2019-03-22Fixed one warning and one undefined value.Maria Matejka
2019-03-18Merge branch 'master' into HEADMaria Matejka
2019-03-14Nest: Update handling of temporary attributesOndrej Zajicek (work)
The temporary atttributes are no longer removed by ea_do_prune(), but they are undefined by store_tmp_attrs() protocol hooks. This fixes several bugs where temporary attributes were removed when they should not or not removed when they should be. The flag EAF_TEMP is no longer needed and was removed. Update all protocol make_tmp_attrs() / store_tmp_attrs() hooks to use helper functions and to handle unset attributes properly. Also fix some related bugs like improper handling of empty eattr list.
2019-02-26NEWS and version updatev2.0.4Ondrej Zajicek (work)
2019-02-20Conf: Symbol implementation converted from void pointers to unionMaria Matejka
... and consted some declarations.
2019-02-20Filter: merged filter instruction constructors, counting line size on ↵Maria Matejka
instruction construct
2019-02-20Filters: split the large filter.h file to smaller files.Maria Matejka
This should be revised, there are still ugly things in the filter API.
2019-02-20Filter refactoring: dropped the recursion from the interpreterMaria Matejka
This is a major change of how the filters are interpreted. If everything works how it should, it should not affect you unless you are hacking the filters themselves. Anyway, this change should make a huge improvement in the filter performance as previous benchmarks showed that our major problem lies in the recursion itself. There are also some changes in nest and protocols, related mostly to spreading const declarations throughout the whole BIRD and also to refactored dynamic attribute definitions. The need of these came up during the whole work and it is too difficult to split out these not-so-related changes.
2019-01-05NEWS and version updatev2.0.3Ondrej Zajicek (work)
2019-01-04Unix: Remove removed option from helpOndrej Zajicek (work)
Also includes minor cleanup of help.
2019-01-04BSD: Fix TCP-MD5 code on current FreeBSD kernelsOndrej Zajicek (work)
Current FreeBSD kernels require SA records for both directions. Thanks to Joseph Mulloy and Andrey V. Elsukov for reporting and solving the issue.
2019-01-02BGP: Better dispatch of incoming connectionsOndrej Zajicek (work)
Since v2 we have multiple listening BGP sockets, and each BGP protocol has associated one of them. Use listening socket that accepted the incoming connection as a key in the dispatch process so only BGP protocols assocaited with that listening socket can be selected. This is necesary for proper dispatch when VRFs are used.
2018-12-28KRT: Fix debug messages in netlink codeArthur Gautier
2018-12-18IO: Workaround for broken FreeBSD behaviorOndrej Zajicek (work)
FreeBSD silently changes TTL to 1 when MSG_DONTROUTE is used, even when it is explicitly set to another value. That breaks TTL security sockets, including BFD which always uses TTL 255. Bad FreeBSD!
2018-12-14Doc: Rename code documentation files back to DocOndrej Zajicek (work)
2018-12-04Unix: Change debugging optionsOndrej Zajicek (work)
The old behavior was that enabling debugging did many nontrivial changes in BIRD behavior. The patch changes it that these changes are generally independent. Compiling with --enable-debug now just enables compile-time debug macros, but do not automatically activate debug mode (-d) nor local mode (-l). Debug mode with output to file (-D) do not force foreground mode (-f), therefore there is no need for backgroud option (-b), which is removed. Also fixes a bug when the default log target in -D mode was stderr instead of given debug file.
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