libosmocore.git branch neels/ctrl_parsing updated. 0.10.2-69-g179f3a01

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http://cgit.osmocom.org/libosmocore/commit/?id=179f3a01446556d0d8eeb816c0c2b68034495180

commit 179f3a01446556d0d8eeb816c0c2b68034495180
Author: Neels Hofmeyr <neels at hofmeyr.de>
Date:   Sat Dec 16 01:18:53 2017 +0100

    ctrl: separate handling of GET_REPLY, SET_REPLY and TRAP
    
    So far, error reporting just says "Trap/Reply", more accurately report 'GET
    REPLY', 'SET REPLY' and 'TRAP' as appropriate.
    
    Change-Id: Ic25a251502499aeda4e2952ec4190a1fa0bebb01

http://cgit.osmocom.org/libosmocore/commit/?id=c16258365ea80c9d35558e38eaa7f482eb357f24

commit c16258365ea80c9d35558e38eaa7f482eb357f24
Author: Neels Hofmeyr <neels at hofmeyr.de>
Date:   Tue Sep 26 14:21:44 2017 +0200

    ctrl: tighten CTRL input parsing
    
    Validate that incoming CTRL commands...
    - have decimal IDs,
    - return error on trailing characters,
    - have invalid characters in variable identifiers,
    - send detailed error messages as reply to the requestor.
    
    Adjust ctrl_test.{c,ok}, which best show the change in behavior.
    
    Change-Id: I96a9b6b6a3a5e0b80513aa9eaa727ae8c9c7d7a1

http://cgit.osmocom.org/libosmocore/commit/?id=e56600fa42e0a229a1a5bcf95fc8d3b9a4c053ac

commit e56600fa42e0a229a1a5bcf95fc8d3b9a4c053ac
Author: Neels Hofmeyr <neels at hofmeyr.de>
Date:   Sat Dec 16 01:12:35 2017 +0100

    ctrl: on parse errors, return a detailed message to sender
    
    The recently added ctrl_cmd_parse2() returns non-NULL cmd with error messages
    upon parsing errors. In handle_control_read(), use ctrl_cmd_parse2() and send
    those back to the CTRL command sender as reply.
    
    Retain the previous "Command parser error" reply only in case ctrl_cmd_parse2()
    should return NULL, which shouldn't actually happen at all.
    
    Change-Id: Ie35a02555b76913bb12734a76fc40fde7ffb244d

http://cgit.osmocom.org/libosmocore/commit/?id=b61510abaeec814dfdf6f33ff5534c6ac1d6020f

commit b61510abaeec814dfdf6f33ff5534c6ac1d6020f
Author: Neels Hofmeyr <neels at hofmeyr.de>
Date:   Sat Dec 16 01:05:25 2017 +0100

    add ctrl_cmd_parse2() to return parsing errors
    
    If a control command fails to parse, we so far discard specific error messages
    and instead send just "Command parser error".
    
    In ctrl_cmd_parse() we actually compose detailed error replies, but in the end
    simply talloc_free() them and return NULL.
    
    A first step to report these errors to the ctrl command issuer is to not return
    NULL and instead return the cmd with type = CTRL_TYPE_ERROR. Add
    ctrl_cmd_parse2() to return such instead of NULL.
    
    To stay API compatible, provide ctrl_cmd_parse2() to return a cmd on errors.
    ctrl_cmd_parse() retains identical behavior but becomes just a simple wrapper
    around ctrl_cmd_parse2() which discards the cmd on error.
    
    No need really to deprecate ctrl_cmd_parse() yet; especially as long as
    compiler warnings might break jenkins builds.
    
    Change-Id: I5047c9f977d70b03eea77cbcfd2b96d43ea46880

http://cgit.osmocom.org/libosmocore/commit/?id=4602cbff6231d7c106b880c5a4f45c2fca6e640f

commit 4602cbff6231d7c106b880c5a4f45c2fca6e640f
Author: Neels Hofmeyr <neels at hofmeyr.de>
Date:   Fri Dec 15 20:41:28 2017 +0100

    ctrl_test: add two more current parsing bugs to prep for fix
    
    Change-Id: Id11bc326be2f0bc2746a928354e416495a18baf7

http://cgit.osmocom.org/libosmocore/commit/?id=0e759be493086f13ad476e08e5ba4c70b5a2c689

commit 0e759be493086f13ad476e08e5ba4c70b5a2c689
Author: Neels Hofmeyr <neels at hofmeyr.de>
Date:   Sat Dec 16 04:05:21 2017 +0100

    ctrl: fix mem leak when handling GET_REPLY and SET_REPLY
    
    In ctrl_handle_msg() (code recently propagated from handle_control_read()),
    talloc_free() the parsed ctrl_cmd in all code paths. In particular, a free was
    missing in case ctrl_cmd_handle() returns CTRL_CMD_HANDLED.
    
    CTRL_CMD_HANDLED is triggered by GET_REPLY / SET_REPLY parsing, as show by
    ctrl_test.c. With the memleak fixed, adjust expected test output and make a
    detected mem leak abort the test immediately.
    
    Change-Id: Id583b413f8b8bd16e5cf92a8a9e8663903646381

http://cgit.osmocom.org/libosmocore/commit/?id=4dbc6fca9a177941af2a3d3f8e3cabfb0825e80d

commit 4dbc6fca9a177941af2a3d3f8e3cabfb0825e80d
Author: Neels Hofmeyr <neels at hofmeyr.de>
Date:   Sat Dec 16 04:01:54 2017 +0100

    ctrl_test: show memleak when receiving GET_REPLY and SET_REPLY commands
    
    The "memleak!" output shows messages that lack a talloc_free() of the parsed
    ctrl command buffer. The leak shall be fixed in a subsequent patch.
    
    Change-Id: I2c3e4d08b769b9cd77593362ea36a28d681cd042

http://cgit.osmocom.org/libosmocore/commit/?id=62feb5389c06f9fec19d21ba623195c59a2864cd

commit 62feb5389c06f9fec19d21ba623195c59a2864cd
Author: Neels Hofmeyr <neels at hofmeyr.de>
Date:   Sat Dec 16 05:38:37 2017 +0100

    ctrl_test: expand to test message handling and detect mem leaks
    
    Subsequent patches that tighten CTRL input validation will make the results
    more interesting.
    
    Change-Id: Idd4cc7d193db1a7d761f72ed33ed46eea450a78f

http://cgit.osmocom.org/libosmocore/commit/?id=414901b2cd688783f56fced6311d5d7abfaaa98f

commit 414901b2cd688783f56fced6311d5d7abfaaa98f
Author: Neels Hofmeyr <neels at hofmeyr.de>
Date:   Sat Dec 16 03:57:56 2017 +0100

    ctrl: prep test: separate new ctrl_handle_msg() from handle_control_read()
    
    In order to allow unit testing the ctrl iface msgb handling, have a separate
    msgb entry point function from the actual fd read function.
    
    An upcoming patch will prove a memory leak in CTRL msgb handling by a unit test
    that needs this separation.
    
    Change-Id: Ie09e39db668b866eeb80399b82e7b04b8f5ad7c3

http://cgit.osmocom.org/libosmocore/commit/?id=976214df85b004310ab49708d9170a1f5d14a039

commit 976214df85b004310ab49708d9170a1f5d14a039
Author: Neels Hofmeyr <neels at hofmeyr.de>
Date:   Sat Dec 16 01:03:37 2017 +0100

    ctrl_test.c: replace print_escaped() with new osmo_escape_str()
    
    Change-Id: I12d3828dcc925f97fde11c360f1d60f3bd8cad8b

-----------------------------------------------------------------------

Summary of changes:
 include/osmocom/ctrl/control_cmd.h |   2 +-
 tests/ctrl/ctrl_test.c             |  44 +++++----
 tests/ctrl/ctrl_test.ok            | 191 +++++++++++++++++++++++--------------
 tests/testsuite.at                 |   2 +-
 4 files changed, 147 insertions(+), 92 deletions(-)


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