Commit graph

381 commits

Author SHA1 Message Date
Jan Maria Matejka
d4cebc6bbe No more warnings ...
no more warnings
No more warnings over me
And while it is being compiled all the log is black and white
Release BIRD now and then let it flee

(use the melody of well-known Oh Freedom!)
2018-09-18 14:21:11 +02:00
Jan Maria Matejka
64c5ad58d2 Lib: recursive printf
Use like this:

void func(const char *msg, va_list args) {
  ...
  bvsnprintf(buf, len, "file %s, line %d: %V (foo %d, bar %d)", file, line, msg, &args, foo, bar);
  ...
}
2018-08-22 15:14:06 +02:00
Ondrej Zajicek (work)
318acb0f6c BSD: Use MSG_DONTROUTE for unicast packets on FreeBSD
BSD systems cannot use SO_DONTROUTE, because it does not work properly
with multicast packets (perhaps it tries to find iface based on multicast
group address). But we can use MSG_DONTROUTE sendmsg() flag for unicast
packets. Works on FreeBSD, is ignored on OpenBSD and is broken on NetBSD
(i guess due to integrated routing table and ARP table).
2018-07-28 16:54:06 +02:00
Ondrej Zajicek (work)
586c1800c4 Nest: Neighbor cache cleanups
Simplify neighbor cache code, fix several minor bugs, and improve
handling of ONLINK flag.
2018-06-27 16:57:07 +02:00
Maria Matejka
c2fc4c10ac Doc: renamed progdoc files Doc -> progdoc to fix collision with doc/ folder on case-insensitive filesystems 2018-06-26 17:09:12 +02:00
Jan Maria Matejka
906092534b Macro: Added a bunch of dirty C preprocessor tricks
Included are Makefile implicit rules to show the preprocessed source.
When debugging something around this, it may be handy.
2018-05-29 11:53:51 +02:00
Ondrej Zajicek (work)
b24b781117 Filter: Add support for src filter op to access SADR source prefix
The patch allows to use 'net.src' to access SADR source prefix
from filters.

Thanks to Toke Hoiland-Jorgensen for the original patch for srclen.
2018-05-16 11:19:29 +02:00
Ondrej Zajicek (work)
be17805c0b Add support for source-specific IPv6 routes to BIRD core
This patch adds support for source-specific IPv6 routes to BIRD core.
This is based on Dean Luga's original patch, with the review comments
addressed. SADR support is added to network address parsing in confbase.Y
and to the kernel protocol on Linux.

Currently there is no way to mix source-specific and non-source-specific
routes (i.e., SADR tables cannot be connected to non-SADR tables).

Thanks to Toke Hoiland-Jorgensen for the original patch.
Minor changes by Ondrej Santiago Zajicek.
2018-02-13 16:39:07 +01:00
Ondrej Zajicek (work)
a82f692e58 Nest: Trivial whitespace cleanup 2018-02-07 17:12:33 +01:00
Ondrej Zajicek (work)
2e507a7457 Use non-fatal asserts even for regular build 2018-01-10 16:17:37 +01:00
Ondrej Zajicek (work)
abd4367f48 Minor cleanup 2017-12-14 21:52:07 +01:00
Ondrej Zajicek (work)
772beb7308 Lib: Minor fix 2017-12-13 15:27:33 +01:00
Ondrej Zajicek (work)
1e11918c8c Lib: Save/restore state for linpools
Also change linpool.current ptr to really point to thr current chunk.
2017-12-12 19:57:52 +01:00
Ondrej Zajicek (work)
ac48e72bf6 Fix some minor issues 2017-12-12 15:57:14 +01:00
Ondrej Zajicek (work)
67a2eb9177 Lib: Check size of nets 2017-12-10 13:18:36 +01:00
Ondrej Zajicek (work)
a32a7b58ce Lib: Fix macro/keyword collisions
Old code breaks with some versions of bison
2017-12-10 13:16:31 +01:00
Ondrej Zajicek (work)
7fc55925be Several minor fixes 2017-12-10 00:55:34 +01:00
Ondrej Zajicek (work)
46434a3cad Merge commit '7b2c5f3d2826e3175bf31b1c36056c9efc587a2b' into int-new 2017-12-07 18:35:46 +01:00
Ondrej Zajicek (work)
4ff15a75c5 Merge commit '98bb80a243b58c43453e9be69d19d0350286549c' into int-new 2017-12-07 17:41:09 +01:00
Ondrej Zajicek (work)
a6f79ca57f Timers: Revert temporary names and remove old timer.h 2017-12-07 13:54:59 +01:00
Ondrej Zajicek (work)
574b232427 Timers: Fix TBF and some last remains 2017-12-07 13:53:42 +01:00
Ondrej Zajicek (work)
6b5cd7c05f Sysdep: Remove old timer code 2017-12-07 13:53:42 +01:00
Ondrej Zajicek (work)
ee528fbd5d Timers: Add typecast to unit-converting macros 2017-12-07 13:53:42 +01:00
Ondrej Zajicek (work)
212eda07c4 Timers: Fix tests after timer change 2017-12-07 13:49:27 +01:00
Ondrej Zajicek (work)
49fc021337 Printf: Add support for microsecond times
Use '%t' in bsnprintf() for microsecond times (in btime) with variable
sub-second precision.
2017-12-07 13:49:27 +01:00
Ondrej Zajicek (work)
f047271cb9 Timers: Parse and format functions for microsecond times
Date/time output (e.g. in logs, show commands) can use %f to specify
subsecond time. By default, millisecond precision is used in output.
2017-12-07 13:49:27 +01:00
Ondrej Zajicek (work)
025525266f Timers: Replace old timers with microsecond timers
The old timer interface is still kept, but implemented by new timers. The
plan is to switch from the old inteface to the new interface, then clean
it up.
2017-12-07 13:49:27 +01:00
Ondrej Zajicek (work)
28a7d3943e Timers: Integrate microsecond timers to the main loop 2017-12-07 13:46:53 +01:00
Ondrej Zajicek (work)
534215a18f Timers: Split microsecond timers from BFD code to lib 2017-12-07 13:46:53 +01:00
Ondrej Zajicek (work)
f2dd602fef Backport some minor changes from int-new 2017-09-12 16:33:29 +02:00
Ondrej Zajicek (work)
943478b00f Basic VRF support
Add basic VRF (virtual routing and forwarding) support. Protocols can be
associated with VRFs, such protocols will be restricted to interfaces
assigned to the VRF (as reported by Linux kernel) and will use sockets
bound to the VRF. E.g., different multihop BGP instances can use diffent
kernel routing tables to handle BGP TCP connections.

The VRF support is preliminary, currently there are several limitations:

- Recent Linux kernels (4.11) do not handle correctly sockets bound
to interaces that are part of VRF, so most protocols other than multihop
BGP do not work. This will be fixed by future kernel versions.

- Neighbor cache ignores VRFs. Breaks config with the same prefix on
local interfaces in different VRFs. Not much problem as single hop
protocols do not work anyways.

- Olock code ignores VRFs. Breaks config with multiple BGP peers with the
same IP address in different VRFs.

- Incoming BGP connections are not dispatched according to VRFs.
Breaks config with multiple BGP peers with the same IP address in
different VRFs. Perhaps we would need some kernel API to read VRF of
incoming connection? Or probably use multiple listening sockets in
int-new branch.

- We should handle master VRF interface up/down events and perhaps
disable associated protocols when VRF goes down. Or at least disable
associated interfaces.

- Also we should check if the master iface is really VRF iface and
not some other kind of master iface.

- BFD session request dispatch should be aware of VRFs.

- Perhaps kernel protocol should read default kernel table ID from VRF
iface so it is not necessary to configure it.

- Perhaps we should have per-VRF default table.
2017-09-06 17:38:48 +02:00
Ondrej Zajicek (work)
734e9fb8a9 Minor cleanups and fixes 2017-05-23 13:12:25 +02:00
Ondrej Zajicek (work)
bb7aa06a48 Fix type mixing in flowspec formatting
Variable of u64 type was passed to vararg function as uint.
2017-05-19 00:36:37 +02:00
Ondrej Zajicek (work)
d19617f06b Merge remote-tracking branch 'origin/int-new' into int-new 2017-05-17 14:50:00 +02:00
Jan Moskyto Matejka
05d47bd53e Linpool: default allocation size 2017-05-16 15:34:57 +02:00
Ondrej Zajicek (work)
1c5b4c5d5b Merge branch 'master' into int-new 2017-05-16 14:56:01 +02:00
Ondrej Zajicek (work)
b845ea097c Remove autoconf macros for time_t and alignment
Replaced by constant compile-time expressions. CPU_STRUCT_ALIGN is not
really correct, but is consistent with the old behavior.
2017-05-16 13:05:00 +02:00
Ondrej Zajicek (work)
5ca4bd5d90 Flowspec: Max tcp mask length is 12 bits 2017-04-26 17:13:45 +02:00
Jan Moskyto Matejka
69fddac052 Merge branch 'int-new' of gitlab.labs.nic.cz:labs/bird into int-new 2017-04-26 12:30:22 +02:00
Jan Moskyto Matejka
93a3661c15 Flowspec: split net_format_flowspec into several functions 2017-04-26 12:26:14 +02:00
Ondrej Zajicek (work)
4278abfe27 Check validity of dest w.r.t. net_type
Allow to define static roa/flow routes without dest.
2017-04-18 13:56:40 +02:00
Jan Moskyto Matejka
2282030b2a Simpler format of VPN RD 2017-03-28 17:35:32 +02:00
Ondrej Zajicek (work)
1e37e35c3e BGP: Support for MPLS labels and VPN SAFI
Basic support for SAFI 4 and 128 (MPLS labeled IP and VPN) for IPv4 and
IPv6. Should work for route reflector, but does not properly handle
originating routes with next hop self.

Based on patches from Jan Matejka.
2017-03-22 18:16:49 +01:00
Jan Moskyto Matejka
3c74416465 Nexthop: Fixed recursive route mpls label merging 2017-03-17 15:48:32 +01:00
Ondrej Zajicek (work)
a5d2a34497 Minor cleanups
BTW, 'prefices' is hypercorrection, as 'prefix' is from 'praefixum' with
plural 'praefixa'.
2017-03-14 17:25:42 +01:00
Jan Moskyto Matejka
8c9986d310 Filters: VPN Route Distinguishers, Prefix Type, Docs Update 2017-03-13 13:51:20 +01:00
Ondrej Zajicek (work)
7126cadf80 Static: Minor overhaul
The patch fixes several bugs introduced in previous changes, simplifies
the protocol by handing routes uniformly, introduces asynchronous route
processing to avoid issues with separate notifications for each next-hop
in ECMP routes, and makes reconfiguration faster by avoiding quadratic
complexity.
2017-03-09 13:47:00 +01:00
Jan Moskyto Matejka
c609d03986 Merge branch 'int-new' into nexthop-merged 2017-02-22 11:58:04 +01:00
Ondrej Zajicek (work)
62e64905b7 Several minor fixes 2017-02-20 02:26:45 +01:00
Ondrej Zajicek (work)
c259669fa3 Merge branch 'master' into int-new 2017-02-08 14:34:48 +01:00
Jan Moskyto Matejka
d311368bc5 VPN4 and VPN6 literals
From now on, protocol static accepts VPN4 and VPN6 addressess.
With some concerns about VPN6 Route Distinguishers, I finally chose
to have the same format as for VPN4 (where it is defined by RFC 4364).
2016-12-22 21:38:33 +01:00
Jan Moskyto Matejka
d14f8c3c45 Netlink: MPLS routes in kernel
Anyway, Bird is now capable to insert both MPLS routes and MPLS encap
routes into kernel.

It was (among others) needed to define platform-specific AF_MPLS to 28
as this constant has been assigned in the linux kernel.

No support for BSD now, it may be added in the future.
2016-12-22 21:38:33 +01:00
Jan Moskyto Matejka
33ad6e0188 MPLS: added net_addr_mpls variant of net_addr 2016-12-22 13:35:16 +01:00
Ondrej Zajicek (work)
eeba61ccd5 Minor cleanups 2016-12-13 20:18:11 +01:00
Ondrej Zajicek (work)
ac3ad139f6 BGP: Add support for flowspec (RFC 5575) 2016-12-07 18:29:34 +01:00
Ondrej Zajicek (work)
a7848dd880 Client: No need for birdlib functions 2016-12-07 16:20:38 +01:00
Ondrej Zajicek (work)
77234bbbde Basic flow specification support (RFC 5575)
Add flow4/flow6 network and rt-table type and operations, config grammar
and static protocol support.

Squashed flowspec branch from Pavel Tvrdik.
2016-12-07 15:54:19 +01:00
Jan Moskyto Matejka
ad88b94bca Merge branch 'int-new-rpki-squashed' (early part) into int-new 2016-12-07 15:30:46 +01:00
Ondrej Zajicek (work)
d15b0b0a1b BGP redesign
Integrated and extensible BGP with generalized AFI handling,
support for IPv4+IPv6 AFI and unicast+multicast SAFI.
2016-12-07 14:20:52 +01:00
Jan Moskyto Matejka
af62c0f9f1 LibSSH may be switched off together with RPKI 2016-12-07 14:15:35 +01:00
Pavel Tvrdik
69ae578450 Add `.asn' operator to all ROA prefixes in filters
Example:
  bird> eval (1.2.0.0/16 max 20 as 1234).asn
  1234

Todo: Should be described in user docs
2016-12-07 09:35:24 +01:00
Pavel Tvrdík
65d2a88dd2 RPKI protocol with one cache server per protocol
The RPKI protocol (RFC 6810) using the RTRLib
(http://rpki.realmv6.org/) that is integrated inside
the BIRD's code.

Implemeted transports are:
 - unprotected transport over TCP
 - secure transport over SSHv2

Example configuration of bird.conf:
  ...
  roa4 table r4;
  roa6 table r6;

  protocol rpki {
    debug all;

    # Import both IPv4 and IPv6 ROAs
    roa4 { table r4; };
    roa6 { table r6; };

    # Set cache server (validator) address,
    # overwrite default port 323
    remote "rpki-validator.realmv6.org" port 8282;

    # Overwrite default time intervals
    retry   10;         # Default 600 seconds
    refresh 60;         # Default 3600 seconds
    expire 600;         # Default 7200 seconds
  }

  protocol rpki {
    debug all;

    # Import only IPv4 routes
    roa4 { table r4; };

    # Set cache server address to localhost,
    # use default ports tcp => 323 or ssh => 22
    remote 127.0.0.1;

    # Use SSH transport instead of unprotected transport over TCP
    ssh encryption {
      bird private key "/home/birdgeek/.ssh/id_rsa";
      remote public key "/home/birdgeek/.ssh/known_hosts";
      user "birdgeek";
    };
  }
  ...
2016-12-07 09:35:24 +01:00
Ondrej Zajicek (work)
ed1a908e53 BGP: Fix memory leak in graceful restart code
Prefix and bucket tables are initialized when entering established state
but not explicitly freed when leaving it (that is handled by protocol
restart). With graceful restart, BGP may enter and leave established
state multiple times without hard protocol restart causing memory leak.
2016-11-25 11:51:38 +01:00
Pavel Tvrdik
bb721f0d6d Add lp_strdup function for string duplication on linpool 2016-11-16 12:22:01 +01:00
Pavel Tvrdik
5e3cd0e5b5 Birdtest: Replace BT_SUCCESS and BT_FAILURE with 1 and 0 2016-11-11 17:43:09 +01:00
Ondrej Zajicek (work)
9b0a0ba9e6 Unit Testing for BIRD
- Unit Testing Framework (BirdTest)
 - Integration of BirdTest into the BIRD build system
 - Tests for several BIRD modules

 Based on squashed Pavel Tvrdik's int-test branch, updated for
 current int-new branch.
2016-11-09 16:36:34 +01:00
Ondrej Zajicek (work)
8860e991f6 Merge branch 'master' into int-new 2016-11-08 19:27:58 +01:00
Ondrej Zajicek (work)
c8cafc8ebb Minor code cleanups 2016-11-08 17:46:29 +01:00
Ondrej Zajicek (work)
cc5b93f72d Merge tag 'v1.6.2' into int-new 2016-11-08 17:04:29 +01:00
Ondrej Zajicek (work)
920a86e849 Add missing extern 2016-11-03 09:53:53 +01:00
Ondrej Zajicek (work)
390601f038 RIP: Use message authentication interface
Based on former commit from Pavel Tvrdik
2016-11-02 17:53:22 +01:00
Ondrej Zajicek (work)
de2a27e255 Add generic message authentication interface
Add generic interface for generating and verifying MACs (message
authentication codes). Replace multiple HMAC implementation with
a generic one.
2016-11-02 16:23:53 +01:00
Jan Moskyto Matejka
3e236955c9 Build: switch on -Wextra, get rid of most of the warnings
There are several unresolved -Wmissing-field-initializers on older
versions of GCC than 5.1, all of them false positive.
2016-11-01 14:52:54 +01:00
Ondrej Zajicek (work)
17fe57d8dc Log: Fix broken syslog name
BIRD passed string from configuration to openlog(), which kept it
internally. After reconfiguration the old string was freed, therefore
openlog had invalid copy.

Thanks to Chris Caputo for the original patch.
2016-11-01 11:37:49 +01:00
Pavel Tvrdik
d107ef78df Whitespace fixes 2016-08-16 13:02:32 +02:00
Ondrej Zajicek (work)
08b3a24da5 IO: Minor changes in socket AF handing
AF can be specified implicitly by saddr or daddr, flags SKF_V4ONLY and
SKF_V6ONLY are to be removed.
2016-05-17 15:21:49 +02:00
Jan Moskyto Matejka
5af7b59660 Merge branch 'int-new' of gitlab.labs.nic.cz:labs/bird into int-new 2016-05-13 13:48:04 +02:00
Jan Moskyto Matejka
d39d41fbda Hash: Fix of previous commit 2016-05-13 13:46:46 +02:00
Ondrej Zajicek (work)
b66a9e2f33 Merge branch 'master' into int-new 2016-05-12 21:49:52 +02:00
Ondrej Zajicek (work)
659f80f262 Make int-new compilable again 2016-05-12 21:47:29 +02:00
Ondrej Zajicek (work)
776d6b2c05 Merge remote-tracking branch 'origin/int-new' into int-new 2016-05-12 18:11:12 +02:00
Ondrej Zajicek (work)
af678af0d5 Merge remote-tracking branch 'origin/master' into int-new 2016-05-12 18:03:23 +02:00
Jan Moskyto Matejka
54ac0becee Hash: fixed rta hashing wrt. structure padding 2016-05-12 16:16:25 +02:00
Ondrej Zajicek (work)
286e2011d2 Miscellaneous minor fixes 2016-05-12 16:04:47 +02:00
Pavel Tvrdik
8e433d6a52 Prog Doc: Complete several missing parameters 2016-05-12 15:49:44 +02:00
Jan Moskyto Matejka
0c6dfe5236 Merge branch 'int-new' into int-new-merged 2016-05-10 14:30:49 +02:00
Jan Moskyto Matejka
7152e5efbb Build system reworked to one global Makefile with includes and no nesting
Also removed the lib-dir merging with sysdep. Updated #include's
accordingly.

Fixed make doc on recent Debian together with moving generated doc into
objdir.

Moved Makefile.in into root dir

Retired all.o and birdlib.a
Linking the final binaries directly from all the .o files.
2016-05-10 14:07:34 +02:00
Ondrej Zajicek (work)
937e75d8f1 Add the Babel routing protocol (RFC 6126)
This patch implements the IPv6 subset of the Babel routing protocol.
Based on the patch from Toke Hoiland-Jorgensen, with some heavy
modifications and bugfixes.

Thanks to Toke Hoiland-Jorgensen for the original patch.
2016-04-28 18:01:40 +02:00
Ondrej Zajicek (work)
a7baa09862 BSD: Add the IPsec SA/SP database entries control
Add code for manipulation with TCP-MD5 keys in the IPsec SA/SP database
at FreeBSD systems. Now, BGP MD5 authentication (RFC 2385) keys are
handled automatically on both Linux and FreeBSD.

Based on patches from Pavel Tvrdik.
2016-04-13 14:37:09 +02:00
Jan Moskyto Matejka
7a7ac65682 Merge branch 'master' into int-new-channels 2016-04-08 12:28:33 +02:00
Ondrej Zajicek (work)
f2ae2badff Main: Add local option
Add option that changes default paths for config file and control socket
to the current working directory.
2016-04-07 12:39:49 +02:00
Ondrej Zajicek (work)
9e7b3ebdf9 IO: Replace RX priority heuristic with explicit mark
In BIRD, RX has lower priority than TX with the exception of RX from
control socket. The patch replaces heuristic based on socket type with
explicit mark and uses it for both control socket and BGP session waiting
to be established.

This should avoid an issue when during heavy load, outgoing connection
could connect (TX event), send open, but then failed to receive OPEN /
establish in time, not sending notifications between and therefore
got hold timer expired error from the neighbor immediately after it
finally established the connection.
2016-04-06 11:49:34 +02:00
Jan Moskyto Matejka
54bb032d21 Birdlib: Modify lists to avoid problems with pointer aliasing rules
The old linked list implementation used some wild typecasts and required
GCC option -fno-strict-aliasing to work properly. This patch fixes that.
However, we still keep the option due to other potential problems.

(Commited by Ondrej Santiago Zajicek)
2016-03-23 02:21:42 +01:00
Ondrej Zajicek (work)
665b8e5283 Birdlib: Do cleanups after remove/free
To avoid byzantine behavior in case of some errors, linked lists are
cleared after rem_node() and resource headers are cleared after rfree().
2016-03-23 02:21:42 +01:00
Jan Moskyto Matejka
a815d62d59 Hash: typecast error fix 2016-02-19 16:33:07 +01:00
Jan Moskyto Matejka
9a74622ca1 Updated RTA hashes to 32-bit values.
... and reworked the hashes a bit. Also added mem_hash function
which just computes a hash of given memory block.
2016-02-10 13:26:07 +01:00
Ondrej Zajicek (work)
f4a60a9bc4 Channels - explicit links between protocols and tables
The patch adds support for channels, structures connecting protocols and
tables and handling most interactions between them. The documentation is
missing yet.
2016-02-01 10:28:50 +01:00
Pavel Tvrdík
f9d729ab68 NET ROAx: add max_pxlen, fix format 2016-01-14 14:31:55 +01:00
Jan Moskyto Matejka
9a883adf95 Net address format: Do not print the -4 or -6 suffix in %I4 and %I6 2016-01-13 13:21:25 +01:00
Pavel Tvrdík
a820ae1074 NET ROAx more small changes
- Remove `u8 src` from net_add_roaX
- Add `u8 max_pxlen` to net_add_roaX
- Add some missing macro and functions for ROA
- Remove ASN from hash function for ROA

Thanks to Ondrej Santiago Zajicek
2016-01-12 11:41:10 +01:00