[sr-dev] [kamailio/kamailio] dialog/dmq access dialog table by reference (#2570)

pwakano notifications at github.com
Tue Dec 1 00:27:09 CET 2020


- Access to the d_table entries should be done by reference so there is
no risk of race conditions to get and release the lock

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#### Description
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It was seen the access to the d_table was not being made by reference on the function dmq_send_all_dlgs. It was then leading to race conditions where the same entry could have its lock changed elsewhere and then a dead lock would occur. By checking the code in other places where the d_table is used, everywhere it is accessed by reference, this function was the only one not following this logic.
Changes were done to have "entry" as a reference to d_table and not a copy.
You can view, comment on, or merge this pull request online at:

  https://github.com/kamailio/kamailio/pull/2570

-- Commit Summary --

  * dialog/dmq access dialog table by reference

-- File Changes --

    M src/modules/dialog/dlg_dmq.c (10)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/2570.patch
https://github.com/kamailio/kamailio/pull/2570.diff

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