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Author SHA1 Message Date
Ondrej Zajicek (work)
bd22d7f41d IO: Avoid multiple event cycles in one loop cycle. 
Event cycle may took too much time and trigger next timer events, so
avoid cycling between timer and event cycles inside the loop cycle.
 2016-04-06 11:57:28 +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
Ondrej Zajicek (work)
e86cfd41d9 KRT: Fix route learn scan when route changed 
When a kernel route changed, function krt_learn_scan() noticed that and
replaced the route in internal kernel FIB, but after that, function
krt_learn_prune() failed to propagate the new route to the nest, because
it confused the new route with the (removed) old best route and decided
that the best route did not changed.

Wow, the original code (and the bug) is almost 17 years old.
 2016-04-06 11:46:25 +02:00
Jan Moskyto Matejka
ea0a8be2ff IO/Poll: fix mistaken variable merge 
The events variable is used in the short loop decision. The reasons are
not much clear, keeping this to keep the former behaviour.
 2016-03-30 16:21:32 +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
Ondrej Zajicek (work)
39a6b19d6d OSPF: Fix bogus LSA ID collisions between received and originated LSAs 
After restart, LSAs locally originated by the previous instance are
received from neighbors. They are installed to LSA db and flushed. If
export of a route triggers origination of a new external LSA before flush
of the received one is complete, the check in ospf_originate_lsa() causes
origination to fail (because en->nf is NULL for the old LSA and non-NULL
for the new LSA). The patch fixes this by updating the en->nf for LSAs
being flushed (as is already done for empty ones). Generally, en->nf
field deserves some better description in the code.

Thanks to Jigar Mehta for analyzing the problem.
 2016-03-23 02:21:42 +01:00
Ondrej Zajicek (work)
0a505706bc Minor changes in documentation 2016-03-23 02:21:42 +01:00
Ondrej Zajicek (work)
a459f4df16 OSPF: Fix reading from freed memory 
Thanks to Pavel Tvrdik for noticing it.
 2016-03-23 02:21:42 +01:00
Jan Moskyto Matejka
62a4ad3657 Merge remote-tracking branch 'origin/poll' 2016-03-22 13:23:55 +01:00
Jan Moskyto Matejka
9c92f69272 Unix: Substituted select -> poll also in congestion checker 
It does strange things when even one fd larger than FD_SETSIZE is
passed to select().
 2016-03-18 11:47:13 +01:00
Pavel Tvrdík
9036bbf2b7 RIP: fix typo in configuration at rx length opt 2016-03-17 18:40:54 +01:00
Pavel Tvrdík
79a4f74a65 BGP: Add documentaion for extended messages 2016-03-17 18:40:54 +01:00
Jan Moskyto Matejka
fd926ed4ee Poll: Prevent the improbable case of EAGAIN after POLLIN 2016-03-15 14:57:49 +01:00
Jan Moskyto Matejka
e1c13a5a7b Unix: Rework of select-loop to poll-loop 
This should lift the limit of FD_SETSIZE and allow more than 1024 fd's.
FD_SETSIZE limit doesn't matter now when creating new sockets.
 2016-03-11 12:45:10 +01:00
Pavel Tvrdík
1a7daab126 cf_error(char *msg, ...) -> cf_error(const char *msg, ...) 2016-03-10 16:07:44 +01:00
Pavel Tvrdík
43fd8fae52 nest/proto fix local_debug mode 2016-03-10 16:07:44 +01:00
Pavel Tvrdík
062d18fdb1 Fix typo 2016-03-10 16:07:44 +01:00
Jan Moskyto Matejka
ce95af7a5f Merge branch 'master' of gitlab.labs.nic.cz:labs/bird 2016-02-25 18:25:53 +01:00
Ondrej Zajicek (work)
e3f506f9b5 OSPF: Multicast ability is irrelevant for stub interfaces 2016-02-25 18:23:39 +01:00
Jan Moskyto Matejka
b25509e512 All the current pthread implementations are OK and working with us. 
No more need to disable pthread for specific BSD's.
 2016-02-25 18:22:27 +01:00
Jan Moskyto Matejka
a815d62d59 Hash: typecast error fix 2016-02-19 16:33:07 +01:00
Ondrej Zajicek (work)
9c9cc35c02 Filter: Implement last_nonaggregated operator on bgp_path 2016-02-16 17:33:58 +01:00
Ondrej Zajicek (work)
c2106b674c Unix: Fix bug in syslog name handling 
Pointer to current_log_name has to be changed even if the name is the
same, because the old one will be invalid/freed after reconfiguration.
 2016-02-11 21:53:55 +01:00
Ondrej Zajicek (work)
487c6961cb BGP: Fix bug in incoming connection handling 
When a BGP session was established by an outgoing connection with
Graceful Restart behavior negotiated, a pending incoming connection in
OpenSent state, and another incoming connection was received, then the
outgoing connection (and whole BGP session) was closed, but the old
incoming connection was just overwritten by the new one. That later
caused a crash when the hold timer from the old connection fired.
 2016-02-11 16:38:28 +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
Pavel Tvrdík
1bb3ecb2a5 Fix closing flushed channel 
Fix reading from freed memory.
  Free at: channel_set_state(c, CS_DOWN)
  Read at: WALK_LIST2_DELSAFE(c, n, x, tab->channels, table_node)

==00:00:00:00.261 24718==
==00:00:09:31.755 24718== Invalid read of size 8
==00:00:09:31.755 24718==    at 0x4061BA: rt_prune_table (rt-table.c:1688)
==00:00:09:31.755 24718==    by 0x405D5E: rt_event (rt-table.c:1559)
==00:00:09:31.755 24718==    by 0x45D089: ev_run (event.c:85)
==00:00:09:31.755 24718==    by 0x45D158: ev_run_list (event.c:142)
==00:00:09:31.755 24718==    by 0x462814: io_loop (io.c:2412)
==00:00:09:31.755 24718==    by 0x468712: main (main.c:833)
==00:00:09:31.755 24718==  Address 0x5601538 is 136 bytes inside a block of size 304 free'd
==00:00:09:31.755 24718==    at 0x4C29D2A: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==00:00:09:31.755 24718==    by 0x46FF3E: rfree (resource.c:166)
==00:00:09:31.755 24718==    by 0x470309: mb_free (resource.c:415)
==00:00:09:31.755 24718==    by 0x406A6B: rt_unlock_table (rt-table.c:1921)
==00:00:09:31.755 24718==    by 0x40DAE3: channel_do_down (proto.c:297)
==00:00:09:31.755 24718==    by 0x40DD46: channel_set_state (proto.c:359)
==00:00:09:31.755 24718==    by 0x4061AD: rt_prune_table (rt-table.c:1692)
==00:00:09:31.755 24718==    by 0x405D5E: rt_event (rt-table.c:1559)
==00:00:09:31.755 24718==    by 0x45D089: ev_run (event.c:85)
==00:00:09:31.755 24718==    by 0x45D158: ev_run_list (event.c:142)
==00:00:09:31.755 24718==    by 0x462814: io_loop (io.c:2412)
==00:00:09:31.755 24718==    by 0x468712: main (main.c:833)
==00:00:09:31.755 24718==  Block was alloc'd at
==00:00:09:31.755 24718==    at 0x4C28C10: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==00:00:09:31.755 24718==    by 0x470FBC: bird_xmalloc (xmalloc.c:29)
==00:00:09:31.755 24718==    by 0x4701E6: mb_alloc (resource.c:339)
==00:00:09:31.755 24718==    by 0x406C29: rt_commit (rt-table.c:1977)
==00:00:09:31.755 24718==    by 0x45C36D: config_do_commit (conf.c:269)
==00:00:09:31.755 24718==    by 0x45C545: config_commit (conf.c:361)
==00:00:09:31.755 24718==    by 0x4686F9: main (main.c:822)
==00:00:09:31.755 24718==
 2016-02-08 16:08:50 +01:00
Jan Moskyto Matejka
2a013bb3a0 Fixed sigsegv for missing proto->rt_notify hook 
If rt_notify is NULL, the export must always stay DOWN.
 2016-02-01 16:01:18 +01:00
Jan Moskyto Matejka
ade389b326 BSD: compilation error fix 2016-02-01 10:28:50 +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
9f5782d969 Add 'GENERATE/ACCEPT FROM datetime TO datetime' to password options 2016-01-28 17:16:53 +01:00
Pavel Tvrdík
966ca6143b io.c: fix reads from uninitialized memory 2016-01-27 12:41:59 +01:00
Pavel Tvrdík
d82987d12e RIP: Fix DBG output 2016-01-27 12:41:32 +01:00
Jan Moskyto Matejka
74d9416763 RIPng: fixed misrejection of host routes 2016-01-25 10:29:06 +01:00
Jan Moskyto Matejka
2fad92144e BSD: fix no-return warning 2016-01-21 15:47:04 +01:00
Jan Moskyto Matejka
3f35816136 BSD: Explicitly dropping routes with mismatched AF's. 2016-01-21 14:55:33 +01:00
Jan Moskyto Matejka
0e965f6991 All the current pthread implementations are OK and working with us. 
No more need to disable pthread for specific BSD's.
 2016-01-21 14:55:33 +01:00
Pavel Tvrdík
7eb9e79648 Add condition for max_pxlen by ROA grammar 2016-01-21 10:37:08 +01:00
Pavel Tvrdík
a4caa1c0a3 Use net_addr pointer for net_addr_roaX 
net_addr_roa6 is bigger than net_addr

Thanks to Ondrej Zajicek for notice
 2016-01-21 10:37:08 +01:00
Pavel Tvrdík
259052199b Add forgotten semicolon 2016-01-20 16:46:58 +01:00
Pavel Tvrdík
650b418942 Delete old ROA code 2016-01-20 16:46:58 +01:00
Pavel Tvrdík
0264ccf6f4 Rewrite roa_check() for integrated BIRD 
Thanks to Ondrej Zajicek for his support with writing this code.
 2016-01-20 16:46:58 +01:00
Pavel Tvrdík
cb1bd816db Add ROA_* constants values to grammar of configuration 
Add ROA_UNKNOWN, ROA_VALID and ROA_INVALID
 2016-01-20 16:46:58 +01:00
Pavel Tvrdík
513ad0a85e Add ROA net_addr to grammar 
Example:
  protocol static
  {
    route 10.110.0.0/16 max 16 as 1000 blackhole;
    route 10.120.0.0/16 max 24 as 1000 blackhole;
    route 10.130.0.0/16 max 24 as 2000 blackhole;
    route 10.130.128.0/18 max 24 as 3000 blackhole;
    ...
  }
 2016-01-20 16:46:30 +01:00
Jan Moskyto Matejka
8109eb765f BSD integration fixes 2016-01-20 12:05:16 +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
Pavel Tvrdík
93e807292c ROA change printf 'ASN: xxx' to 'ASxxx' 2016-01-12 11:40:50 +01:00
Jan Moskyto Matejka
6ffa8f5393 Hidden AF_INET* inside sysdep/ 2016-01-11 09:29:51 +01:00