[Auditbeat] Cherry-pick #10796 to 6.7: Package dataset: Make librpm code compatible across CentOS 6.x, 7.x, and Fedora 29 #10907
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…S 6.x, 7.x, and Fedora 29 (elastic#10796) Librpm version 4.14.2.1 on Fedora 29 no longer contains the `headerGetEntry` method we are currently using. It was deprecated and then removed in version 4.14 (rpm-software-management/rpm@c68fa9a). Also, the much older version 4.8.0 of librpm on CentOS 6.10 (Final) does not yet contain newer data structures for tags like `rpm_tag_t/rpmTag/rpmTagVal`. This PR makes two changes that should allow this code to work on all three distros (CentOS 6.x, 7.x, Fedora 29 - and hopefully anything in between): 1. Use `headerGetString/headerGetNumber` instead of `headerGetEntry`. 2. Use `int32_t` instead of `rpm_tag_t/rpmTag/rpmTagVal`. Luckily, this seems to work on all three distros. I'd prefer something like a typedef, but unfortunately, C99 does not allow repeating a typedef (C11 does) and so backporting them is not easily possible. It also makes the code more lenient with errors during data collection: Only when no package name can be found do we return an error. Together with elastic#10694 this will hopefully allow RPM package collection to work well. (cherry picked from commit e7ea5d7)
cwurm
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Pinging @elastic/secops |
adriansr
approved these changes
Feb 25, 2019
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Cherry-pick of PR #10796 to 6.7 branch. Original message:
Librpm version 4.14.2.1 on Fedora 29 no longer contains the
headerGetEntrymethod we are currently using. It was deprecated and then removed in version 4.14 (rpm-software-management/rpm@c68fa9a).Also, the much older version 4.8.0 of librpm on CentOS 6.10 (Final) does not yet contain newer data structures for tags like
rpm_tag_t/rpmTag/rpmTagVal.This PR makes two changes that should allow this code to work on all three distros (CentOS 6.x, 7.x, Fedora 29 - and hopefully anything in between):
headerGetString/headerGetNumberinstead ofheaderGetEntry.int32_tinstead ofrpm_tag_t/rpmTag/rpmTagVal. Luckily, this seems to work on all three distros. I'd prefer something like a typedef, but unfortunately, C99 does not allow repeating a typedef (C11 does) and so backporting them is not easily possible.It also makes the code more lenient with errors during data collection: Only when no package name can be found do we return an error.
Together with #10694 this will hopefully allow RPM package collection to work well.