system/socket: Add ip_local_out alternative #22787
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This commit adds a new function alternative, `__ip_local_out` for selecting a proper ip_local_out function, and fixes `guess_ip_local_out` logic in order to account for this new function. The new order of precedence is: - ip_local_out_sk (kernels before 3.16) - __ip_local_out (for kernels where ip_local_out calls are inlined) - ip_local_out (all others). Relates elastic#18755
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Confirmed from my side that it is working with this fix under Archlinux. |
This was referenced Dec 1, 2020
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This commit adds a new function alternative, `__ip_local_out` for selecting a proper ip_local_out function, and fixes `guess_ip_local_out` logic in order to account for this new function. The new order of precedence is: - ip_local_out_sk (kernels before 3.16) - __ip_local_out (for kernels where ip_local_out calls are inlined) - ip_local_out (all others). Relates elastic#18755 (cherry picked from commit b627fb7)
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This commit adds a new function alternative, `__ip_local_out` for selecting a proper ip_local_out function, and fixes `guess_ip_local_out` logic in order to account for this new function. The new order of precedence is: - ip_local_out_sk (kernels before 3.16) - __ip_local_out (for kernels where ip_local_out calls are inlined) - ip_local_out (all others). Relates elastic#18755 (cherry picked from commit b627fb7)
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#22869) * system/socket: Add ip_local_out alternative (#22787) This commit adds a new function alternative, `__ip_local_out` for selecting a proper ip_local_out function, and fixes `guess_ip_local_out` logic in order to account for this new function. The new order of precedence is: - ip_local_out_sk (kernels before 3.16) - __ip_local_out (for kernels where ip_local_out calls are inlined) - ip_local_out (all others). Relates #18755 (cherry picked from commit b627fb7)
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…ve (#22870) * system/socket: Add ip_local_out alternative (#22787) This commit adds a new function alternative, `__ip_local_out` for selecting a proper ip_local_out function, and fixes `guess_ip_local_out` logic in order to account for this new function. The new order of precedence is: - ip_local_out_sk (kernels before 3.16) - __ip_local_out (for kernels where ip_local_out calls are inlined) - ip_local_out (all others). Relates #18755 (cherry picked from commit b627fb7) * Changelog entry
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What does this PR do?
This PR adds a new function alternative,
__ip_local_outfor selecting a proper ip_local_out function, and fixesguess_ip_local_outlogic in order to account for this new function.The new order of precedence is:
Why is it important?
In some systems, the
socketdataset won't start with an error:This is caused by Auditbeat expecting a kprobe set to
ip_local_outto trigger, but it never does. The reason is that calls to this function might have been inlined. In those cases we need to attach the kprobe to__ip_local_outinstead.Checklist
[ ] I have made corresponding changes to the documentation[ ] I have made corresponding change to the default configuration files[ ] I have added tests that prove my fix is effective or that my feature worksCHANGELOG.next.asciidocorCHANGELOG-developer.next.asciidoc.Related issues
Relates #18755