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884 Commits

Author SHA1 Message Date
Amitay Isaacs
8b52325985 ctdb-common: Fix memory leak in run_proc
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13943

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>

Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Tue May 14 08:59:03 UTC 2019 on sn-devel-184

(cherry picked from commit b1f4c86eea022999d5439e4a6ef3494fe41479b6)

Autobuild-User(v4-9-test): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(v4-9-test): Fri May 17 10:56:19 UTC 2019 on sn-devel-144
2019-05-17 10:56:19 +00:00
Martin Schwenke
5419978537 ctdb-common: Fix memory leak
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13943

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit 30bc6e2529cdd444d4ec7902844c3a6fb0858090)
2019-05-17 07:18:32 +00:00
Andreas Schneider
925871f580 ctdb:common: Do not print NULL if we don't get a sockpath
sock_socket_start_recv() might not fill sockpath if we return early.

Found by GCC 9.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13937

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit 830cb7e67568de5f3ce359cb6af3be8ab545c824)
2019-05-17 07:18:31 +00:00
Amitay Isaacs
945a41d384 ctdb-common: Avoid race between fd and signal events
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13895

In run_proc, there was an implicit assumption that when a process exits,
fd event (pipe between parent and child) would be processed first and
signal event (SIGCHLD for the child) would be processed later.

However, that is not the case.  SIGCHLD can be received asynchronously
any time even when the pipe data has not fully been read.  This causes
run_proc to miss some of the output from child process in tests.

When SIGCHLD is being processed, if the pipe between parent and child is
still open, then do an explict read from the pipe to ensure we read any
data still in the pipe before closing the pipe.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>

Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Fri Apr 12 08:19:29 UTC 2019 on sn-devel-144

(cherry picked from commit 289201277cd983b27cdfd5376c607eab112b4082)

Autobuild-User(v4-9-test): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(v4-9-test): Mon Apr 15 12:55:46 UTC 2019 on sn-devel-144
2019-04-15 12:55:46 +00:00
Amitay Isaacs
ec028efc66 ctdb-common: Set close-on-exec for startup fd
The startup_fd should not be propagated to the child processes created
from a daemon.  It should only be used in the daemon code to return the
status of the startup.  Another use of startup_fd is to notify the
parent if the daemon process has exited.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13659

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
(cherry picked from commit 80549927bc1741a4b8af8b8e830de4d37fa0c4a8)
2018-10-25 07:59:09 +02:00
Martin Schwenke
35242cfbf4 ctdb-common: Add support for sock daemon to notify of successful startup
The daemon writes 0 into the specified file descriptor when it is up
and listening.  This can be used to avoid loops in clients that
attempt to connect until they succeed.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13592

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit dc6040c121c65d5551c686f3f1be2891795f48aa)
2018-09-04 12:14:31 +02:00
Martin Schwenke
a242e10162 ctdb-common: Process the whole config file even if an error occurs
At the moment multiple errors will be encountered one at a time, on
each load or validate.  Instead, allow all configuration errors to
printed in a single pass.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13589

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit 4f1727fe0bf2b0962a5d131d60a416b8f459ad94)
2018-09-04 12:14:30 +02:00
Martin Schwenke
7db0f189d6 ctdb-common: Avoid ENOENT for unknown conf options
Only use ENOENT for missing configuration file.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13589

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit 920ed66ba7e874ca23d72fff9342fbd64a1e329f)
2018-09-04 12:14:30 +02:00
Martin Schwenke
40dff2ce05 ctdb-common: Avoid ENOENT for unknown conf type tags
Only use ENOENT for missing configuration file.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13589

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit f1084400387c0b1257b6d92ee6e8a89504d788fc)
2018-09-04 12:14:29 +02:00
Martin Schwenke
372b79c4f0 ctdb-common: Log a message when an invalid conf value is encountered
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13589

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit a017d3181ac1062b66ae506a8a523f7455630fce)
2018-09-04 12:14:29 +02:00
Martin Schwenke
42b2c12f56 ctdb-common: Log a message for unknown conf option
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13589

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit ebb28c57a17777ea15afab63cd0742dd79b30ffe)
2018-09-04 12:14:28 +02:00
Martin Schwenke
8b711e8d29 ctdb-common: Fix log message for conf option with unknown section
This covers both options that appear before a section and options in
unknown sections.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13589

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit 421d828f6cb7c13d5f33c6cc1c6be254554588a4)
2018-09-04 12:14:27 +02:00
Martin Schwenke
79a3befc05 ctdb-config: Switch tunable DisableIPFailover to a config option
Use the "failover:disabled" option instead.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13589

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit 929634126a334e380f16c080b59d062873b4e5f9)
2018-08-28 10:59:16 +02:00
Martin Schwenke
83b79f5bfb ctdb-config: Integrate failover options into conf-tool
Update and add tests accordingly.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13589

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit d003a41a9cb9ea97a7da9dbb5bd3138f82da6cf1)
2018-08-28 10:59:16 +02:00
Martin Schwenke
624b4d1557 ctdb-common: Allow boolean configuration values to have yes/no values
This make the new configuration style more consistent with the old one.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13589

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit 21de59ab7fe53240380b9a9a5b32d5af32d34237)
2018-08-28 10:59:16 +02:00
Martin Schwenke
75261d6a6d ctdb-config: Switch tunable TDBMutexEnabled to a config option
Use the "database:tdb mutexes" option instead.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13589

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit f42486e8912eee45eb75d27b753bb74c3b37d80b)
2018-08-28 10:59:16 +02:00
Martin Schwenke
7e38e9503a ctdb-common: Fix aliasing issue in IPv6 checksum
Since commit 9c51b278b1700cd5f3e2addc19b7c711cc2ea10b the compiler has
been able to inline the affected call to uint16_checksum().  Given
that the data (phdr) is being accessed by an incompatible
pointer (data) there is an aliasing problem when the call is inlined.
This results in incorrect behaviour with -O2/-O3 when compiling with
at least GCC 6, 7, and 8.

Fix this by making the types compatible.

Also fixes CID 1437604 (Reliance on integer endianness).  This is a
false positive because the uint16_checksum doesn't depend on the order
of the input uint16_t items.

https://bugzilla.samba.org/show_bug.cgi?id=13588

Pair-programmed-with: Amitay Isaacs <amitay@gmail.com>
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit 48335725deecdbdb24a9176cf31e9611c9deda49)
2018-08-28 10:59:15 +02:00
Volker Lendecke
ec2249635a ctdb: Fix a cut&paste error
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13554

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit 33d012c3cebb5625e02450ac3b08c4245a3e985d)
2018-08-13 12:56:35 +02:00
Martin Schwenke
0c65347e94 ctdb-common: Use script abstraction in run_event
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13551

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit 82e62488027302e541739628210292c2d95717e1)
2018-07-31 12:36:28 +02:00
Martin Schwenke
4cce86e872 ctdb-common: Factor out basic script abstraction
Provides for listing of scripts and chmod enable/disable.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13551

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit a7a4ee439dc1cf262b4da9fbcb38a2f69c62744c)
2018-07-31 12:36:28 +02:00
Martin Schwenke
d4e9454f10 ctdb-common: Fix compilation issue with strncpy()
When configured with --picky-developer and using -O3 with gcc 8.1:

../common/system_socket.c: In function ‘parse_ip_mask’:
../common/system_socket.c:229:2: error: ‘strncpy’ specified bound depends on the length of the source argument [-Werror=stringop-overflow=]
  strncpy(s, str, len+1);
  ^~~~~~~~~~~~~~~~~~~~~~
../common/system_socket.c:223:8: note: length computed here
  len = strlen(str);
        ^~~~~~~~~~~

Use strlcpy() instead and check the result.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13545

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit 5dd84bf5d73e4afab094834bc317da7884b9b9b3)
2018-07-31 12:36:28 +02:00
Amitay Isaacs
eb3f8ae42e ctdb-common: Fix the TCP packet length check
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13520

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
(cherry picked from commit be43e08072ebce937ed0a02cd8d9d1c6072b178d)
2018-07-31 12:36:28 +02:00
Amitay Isaacs
b21efa24ac ctdb-common: Add line based I/O
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13520

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
(cherry picked from commit c7041b0faf490661818244dd032ad413ce906e5c)
2018-07-31 12:36:27 +02:00
Amitay Isaacs
43cd4e47ae ctdb-common: Switch to ETIMEDOUT from ETIME
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13520

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
(cherry picked from commit a42a7232990fa163d046fb07be351ea3e0467046)
2018-07-31 12:36:26 +02:00
Martin Schwenke
3bebc5d8a0 ctdb-common: Add path support for datadir
Signed-off-by: Martin Schwenke <martin@meltin.net>
Pair-programmed-with: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2018-07-11 11:48:38 +02:00
Martin Schwenke
070469beb8 ctdb-daemon: Mark NoIPHostOnAllDisabled tunable as obsolete
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2018-07-11 11:48:38 +02:00
Martin Schwenke
d0739b2ea8 ctdb-daemon: Change default for tunable NoIPHostOnAllDisabled to 1
Defaulting to host public IP addresses when all nodes are unhealthy
does not obey the principle of least surprise.  It has caused much
confusion over the years.  It often leads to problems when all nodes
are unhealthy due to something like a cluster filesystem being
unmounted.

Change the default value for this tunable as the first step of
completely removing this behaviour.

Remove tests that set NoIPHostOnAllDisabled=1 and update the expected
result for other tests where no nodes are healthy.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2018-07-11 11:48:37 +02:00
Amitay Isaacs
b2d75c0108 ctdb-common: Fix CID 437606
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2018-07-05 12:30:41 +02:00
Amitay Isaacs
f42106fb49 ctdb-common: Add client pid to connect callback in sock_daemon
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2018-07-05 06:52:43 +02:00
Amitay Isaacs
b977ded38a ctdb-common: Use correct return type for tevent_queue_add_entry
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13493

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2018-07-04 23:56:42 +02:00
Martin Schwenke
fa94a49dbb ctdb-common: Move capture_socket functions to ctdb_socket.[ch]
The system_<os>.c files contain a lot of duplication, making
maintenance difficult.  These functions are being merged into
system_socket.c and system.c.

Bring across ctdb_sys_open_capture_socket(),
ctdb_sys_close_capture_socket() and ctdb_sys_read_tcp_packet().

Remove empty system_<os>.c files.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2018-07-02 08:51:21 +02:00
Martin Schwenke
eafcc98b03 ctdb-common: Move ctdb_sys_send_tcp() to ctdb_socket.[ch]
The system_<os>.c files contain a lot of duplication, making
maintenance difficult.  These functions are being merged into
system_socket.c and system.c.

Bring across tcp_checksum(), renamed to ip_checksum().
uint16_checksum() becomes static.

Use the BSD struct tcphdr field names for portability.  See the
comment in the code for more details about how we get this to compile
on older glibc versions.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2018-07-02 08:51:21 +02:00
Martin Schwenke
9c51b278b1 ctdb-common: Move ctdb_sys_send_arp() to ctdb_socket.[ch]
The system_<os>.c files contain a lot of duplication, making
maintenance difficult.  These functions are being merged into
system_socket.c and system.c.

Bring a copy of tcp_checksum6(), renamed to ip6_checksum().

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2018-07-02 08:51:21 +02:00
Martin Schwenke
1d7d80451b ctdb-common: Move ctdb_get_peer_pid() to system.[ch]
The system_<os>.c files contain a lot of duplication, making
maintenance difficult.  These functions are being merged into
system_socket.c and system.c.

This function doesn't need ctdb_sock_addr so put it with general
system utilities.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2018-07-02 08:51:21 +02:00
Martin Schwenke
8fcd12ba29 ctdb-common: Move ctdb_system_check_iface_exists() to system.[ch]
The system_<os>.c files contain a lot of duplication, making
maintenance difficult.  These functions are being merged into
system_socket.[ch] and system.[ch].

This function doesn't need ctdb_sock_addr so put it with general
system utilities.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2018-07-02 08:51:21 +02:00
Martin Schwenke
2f0a4d2095 ctdb-common: Move parse_ip_mask() to system_socket.[ch]
This uses ctdb_sock_addr so belongs here.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2018-07-02 08:51:20 +02:00
Martin Schwenke
57834c64be ctdb-common: Rename system utility files
system_socket.[ch] will contain all the raw socket code and other
functions that use ctdb_sock_addr.  system.[ch] will contain other
platform dependent functions.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2018-07-02 08:51:20 +02:00
Amitay Isaacs
79992dbb73 ctdb-common: Use sin6_len only if the structure supports it
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13493

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2018-07-02 08:51:20 +02:00
Amitay Isaacs
e84b5020a4 ctdb-common: Correctly handle conf->reload()
Configuration reload should reset the values of configuration options
missing from the config file to default.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>

Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Fri Jun 29 15:12:37 CEST 2018 on sn-devel-144
2018-06-29 15:12:37 +02:00
Swen Schillig
fb3ddb4874 ctdb-common: replace talloc / memcpy by talloc_memdup
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>

Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Fri Jun 22 11:57:19 CEST 2018 on sn-devel-144
2018-06-22 11:57:19 +02:00
Amitay Isaacs
366f6703e7 ctdb-common: Add support to run events through failure
Usually run_event will stop executing event scripts on first failure.
Optionally it can continue to run events even on failure(s).

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2018-06-05 22:34:19 +02:00
Amitay Isaacs
e4a5d610b8 ctdb-common: Reset running state on failure
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2018-06-05 22:34:19 +02:00
Amitay Isaacs
723529e41e ctdb-common: Improve error handling in run_event
If event script directory does not exist, then return ENOTDIR.  If a
directory gets removed at runtime, report error from scandir in
get_script_list().

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2018-06-05 22:34:19 +02:00
Amitay Isaacs
a3591ed5de ctdb-common: Return script_list for zero scripts
When an event script directory is empty, do not return script_list as
NULL.  Instead return empty script_list with zero scripts.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2018-06-05 22:34:19 +02:00
Amitay Isaacs
4d27c11ce2 ctdb-common: Rename run_event_script_list to run_event_list
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2018-06-05 22:34:18 +02:00
Amitay Isaacs
a883f8b092 ctdb-common: Do not initialize run_proc inside run_event
Allowing run_event_init() to take run_proc_context as an argument allows
to create multiple run_event instances with a single run_proc_context.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2018-06-05 22:34:18 +02:00
Amitay Isaacs
4b04c27377 ctdb-common: Simplify process registration using linked list
The way run_proc abstraction is used in run_event, there can be maximum
of 2 processes active at any given time.  So the memory requirements
can be reduced by using a linked list.

New eventd will have multiple run_event instances but will be limited to
3 or 4.  Even then the total number of processes will be less than 10.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2018-06-05 22:34:18 +02:00
Martin Schwenke
b23f3f9960 ctdb-scripts: Event scripts must end with ".script" suffix
Preparation for recommending configuration for each script next to the
actual script.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2018-06-05 17:47:26 +02:00
Martin Schwenke
b42dbadbef ctdb-tools: Add legacy config options to config tool
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2018-05-17 04:04:31 +02:00
Martin Schwenke
65d9d1e743 ctdb-tools: Add database config options to config tool
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2018-05-17 04:04:31 +02:00