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chore(asm): clean libddwaf loading [backport 2.20]#12320

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chore(asm): clean libddwaf loading [backport 2.20]#12320
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Backport 4f0bcb5 from #12102 to 2.20.

Depending of the timing, libddwaf loading process could create triggers that would create loops in our instrumentation.
From what I investigated:

  • if loaded too early, it could have bad interactions with gevent.
  • if loaded too late, it could be self instrumented by the tracer, creating a loop, as ctypes is using Popen and subprocess.

while keeping the late loading introduced by 2 previous PRs

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  • The change follows the library release note guidelines
  • The change includes or references documentation updates if necessary
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  • Testing strategy adequately addresses listed risks
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  • If necessary, author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment
  • Backport labels are set in a manner that is consistent with the release branch maintenance policy

Depending of the timing, libddwaf loading process could create triggers
that would create loops in our instrumentation.
From what I investigated:
- if loaded too early, it could have bad interactions with gevent.
- if loaded too late, it could be self instrumented by the tracer,
creating a loop, as ctypes is using Popen and subprocess.

while keeping the late loading introduced by 2 previous PRs
- #11987
- #12013
this PR introduced a mechanism to bypass tracer instrumentation during
ctypes loading, to avoid a possible loop that would prevent the WAF to
be loaded.

## Checklist
- [x] PR author has checked that all the criteria below are met
- The PR description includes an overview of the change
- The PR description articulates the motivation for the change
- The change includes tests OR the PR description describes a testing
strategy
- The PR description notes risks associated with the change, if any
- Newly-added code is easy to change
- The change follows the [library release note
guidelines](https://ddtrace.readthedocs.io/en/stable/releasenotes.html)
- The change includes or references documentation updates if necessary
- Backport labels are set (if
[applicable](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting))

## Reviewer Checklist
- [x] Reviewer has checked that all the criteria below are met
- Title is accurate
- All changes are related to the pull request's stated goal
- Avoids breaking
[API](https://ddtrace.readthedocs.io/en/stable/versioning.html#interfaces)
changes
- Testing strategy adequately addresses listed risks
- Newly-added code is easy to change
- Release note makes sense to a user of the library
- If necessary, author has acknowledged and discussed the performance
implications of this PR as reported in the benchmarks PR comment
- Backport labels are set in a manner that is consistent with the
[release branch maintenance
policy](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting)

(cherry picked from commit 4f0bcb5)
@github-actions github-actions Bot requested a review from a team as a code owner February 13, 2025 15:06
@github-actions github-actions Bot added changelog/no-changelog A changelog entry is not required for this PR. ASM Application Security Monitoring labels Feb 13, 2025
@datadog-dd-trace-py-rkomorn

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Datadog Report

Branch report: backport-12102-to-2.20
Commit report: 5b8164b
Test service: dd-trace-py

✅ 0 Failed, 130 Passed, 1378 Skipped, 4m 47.54s Total duration (33m 56.56s time saved)

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Benchmarks

Benchmark execution time: 2025-02-13 15:46:56

Comparing candidate commit 5b8164b in PR branch backport-12102-to-2.20 with baseline commit 6731d2e in branch 2.20.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 394 metrics, 2 unstable metrics.

@avara1986 avara1986 merged commit aa4ff7a into 2.20 Feb 13, 2025
@avara1986 avara1986 deleted the backport-12102-to-2.20 branch February 13, 2025 15:47
gnufede pushed a commit that referenced this pull request Feb 14, 2025
…t 2.20] (#12270)

Co-authored-by: Federico Mon <federico.mon@datadoghq.com>

fix(asm): make sure iast is not loaded by exploit prevention if disabled [backport 2.20] (#12271)

Co-authored-by: Christophe Papazian <114495376+christophe-papazian@users.noreply.github.com>

chore(asm): don't load appsec modules (iast)... [backport 2.20] (#12298)

The goal is to make sure no appsec module is loaded if appsec is
disabled.
This PR is the first one of 2, handling IAST.
It removes all non guarded IAST import from outside appsec.

- ensure we don't load any iast module if iast is disabled
- replace `_is_iast_enabled()` by a field `_iast_enabled` in the asm
config

APPSEC-56626

- [x] PR author has checked that all the criteria below are met
- The PR description includes an overview of the change
- The PR description articulates the motivation for the change
- The change includes tests OR the PR description describes a testing
strategy
- The PR description notes risks associated with the change, if any
- Newly-added code is easy to change
- The change follows the [library release note
guidelines](https://ddtrace.readthedocs.io/en/stable/releasenotes.html)
- The change includes or references documentation updates if necessary
- Backport labels are set (if

[applicable](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting))

- [x] Reviewer has checked that all the criteria below are met
- Title is accurate
- All changes are related to the pull request's stated goal
- Avoids breaking

[API](https://ddtrace.readthedocs.io/en/stable/versioning.html#interfaces)
changes
- Testing strategy adequately addresses listed risks
- Newly-added code is easy to change
- Release note makes sense to a user of the library
- If necessary, author has acknowledged and discussed the performance
implications of this PR as reported in the benchmarks PR comment
- Backport labels are set in a manner that is consistent with the
[release branch maintenance

policy](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting)

(cherry picked from commit ea2a9a5)

---------

Co-authored-by: Christophe Papazian <114495376+christophe-papazian@users.noreply.github.com>
Co-authored-by: Alberto Vara <alberto.vara@datadoghq.com>

chore(asm): clean libddwaf loading [backport 2.20] (#12320)

Backport 4f0bcb5 from #12102 to 2.20.

Depending of the timing, libddwaf loading process could create triggers
that would create loops in our instrumentation.
From what I investigated:
- if loaded too early, it could have bad interactions with gevent.
- if loaded too late, it could be self instrumented by the tracer,
creating a loop, as ctypes is using Popen and subprocess.

while keeping the late loading introduced by 2 previous PRs
- #11987
- #12013
this PR introduced a mechanism to bypass tracer instrumentation during
ctypes loading, to avoid a possible loop that would prevent the WAF to
be loaded.

- [x] PR author has checked that all the criteria below are met
- The PR description includes an overview of the change
- The PR description articulates the motivation for the change
- The change includes tests OR the PR description describes a testing
strategy
- The PR description notes risks associated with the change, if any
- Newly-added code is easy to change
- The change follows the [library release note
guidelines](https://ddtrace.readthedocs.io/en/stable/releasenotes.html)
- The change includes or references documentation updates if necessary
- Backport labels are set (if
[applicable](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting))

- [x] Reviewer has checked that all the criteria below are met
- Title is accurate
- All changes are related to the pull request's stated goal
- Avoids breaking
[API](https://ddtrace.readthedocs.io/en/stable/versioning.html#interfaces)
changes
- Testing strategy adequately addresses listed risks
- Newly-added code is easy to change
- Release note makes sense to a user of the library
- If necessary, author has acknowledged and discussed the performance
implications of this PR as reported in the benchmarks PR comment
- Backport labels are set in a manner that is consistent with the
[release branch maintenance
policy](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting)

Co-authored-by: Christophe Papazian <114495376+christophe-papazian@users.noreply.github.com>

fix(asm): decouple appsec [backport 2.20] (#12319)

Backport #12212 to  2.20

- [x] PR author has checked that all the criteria below are met
- The PR description includes an overview of the change
- The PR description articulates the motivation for the change
- The change includes tests OR the PR description describes a testing
strategy
- The PR description notes risks associated with the change, if any
- Newly-added code is easy to change
- The change follows the [library release note
guidelines](https://ddtrace.readthedocs.io/en/stable/releasenotes.html)
- The change includes or references documentation updates if necessary
- Backport labels are set (if
[applicable](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting))

- [x] Reviewer has checked that all the criteria below are met
- Title is accurate
- All changes are related to the pull request's stated goal
- Avoids breaking
[API](https://ddtrace.readthedocs.io/en/stable/versioning.html#interfaces)
changes
- Testing strategy adequately addresses listed risks
- Newly-added code is easy to change
- Release note makes sense to a user of the library
- If necessary, author has acknowledged and discussed the performance
implications of this PR as reported in the benchmarks PR comment
- Backport labels are set in a manner that is consistent with the
[release branch maintenance
policy](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting)

---------

Co-authored-by: Christophe Papazian <114495376+christophe-papazian@users.noreply.github.com>

chore(iast): relase note of #12298 [backport 2.20] (#12317)

Release note of the PR #12298
- [x] PR author has checked that all the criteria below are met
- The PR description includes an overview of the change
- The PR description articulates the motivation for the change
- The change includes tests OR the PR description describes a testing
strategy
- The PR description notes risks associated with the change, if any
- Newly-added code is easy to change
- The change follows the [library release note
guidelines](https://ddtrace.readthedocs.io/en/stable/releasenotes.html)
- The change includes or references documentation updates if necessary
- Backport labels are set (if
[applicable](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting))

- [x] Reviewer has checked that all the criteria below are met
- Title is accurate
- All changes are related to the pull request's stated goal
- Avoids breaking
[API](https://ddtrace.readthedocs.io/en/stable/versioning.html#interfaces)
changes
- Testing strategy adequately addresses listed risks
- Newly-added code is easy to change
- Release note makes sense to a user of the library
- If necessary, author has acknowledged and discussed the performance
implications of this PR as reported in the benchmarks PR comment
- Backport labels are set in a manner that is consistent with the
[release branch maintenance
policy](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting)
avara1986 pushed a commit that referenced this pull request Feb 17, 2025
Backport 4f0bcb5 from #12102 to 2.20.

Depending of the timing, libddwaf loading process could create triggers
that would create loops in our instrumentation.
From what I investigated:
- if loaded too early, it could have bad interactions with gevent.
- if loaded too late, it could be self instrumented by the tracer,
creating a loop, as ctypes is using Popen and subprocess.

while keeping the late loading introduced by 2 previous PRs
- #11987
- #12013
this PR introduced a mechanism to bypass tracer instrumentation during
ctypes loading, to avoid a possible loop that would prevent the WAF to
be loaded.

- [x] PR author has checked that all the criteria below are met
- The PR description includes an overview of the change
- The PR description articulates the motivation for the change
- The change includes tests OR the PR description describes a testing
strategy
- The PR description notes risks associated with the change, if any
- Newly-added code is easy to change
- The change follows the [library release note
guidelines](https://ddtrace.readthedocs.io/en/stable/releasenotes.html)
- The change includes or references documentation updates if necessary
- Backport labels are set (if
[applicable](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting))

- [x] Reviewer has checked that all the criteria below are met
- Title is accurate
- All changes are related to the pull request's stated goal
- Avoids breaking
[API](https://ddtrace.readthedocs.io/en/stable/versioning.html#interfaces)
changes
- Testing strategy adequately addresses listed risks
- Newly-added code is easy to change
- Release note makes sense to a user of the library
- If necessary, author has acknowledged and discussed the performance
implications of this PR as reported in the benchmarks PR comment
- Backport labels are set in a manner that is consistent with the
[release branch maintenance
policy](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting)

Co-authored-by: Christophe Papazian <114495376+christophe-papazian@users.noreply.github.com>
avara1986 added a commit that referenced this pull request Feb 18, 2025
backports 
#11931 
#12184
#12212
#12320

to 2.19

## Checklist
- [x] PR author has checked that all the criteria below are met
- The PR description includes an overview of the change
- The PR description articulates the motivation for the change
- The change includes tests OR the PR description describes a testing
strategy
- The PR description notes risks associated with the change, if any
- Newly-added code is easy to change
- The change follows the [library release note
guidelines](https://ddtrace.readthedocs.io/en/stable/releasenotes.html)
- The change includes or references documentation updates if necessary
- Backport labels are set (if
[applicable](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting))

## Reviewer Checklist
- [x] Reviewer has checked that all the criteria below are met 
- Title is accurate
- All changes are related to the pull request's stated goal
- Avoids breaking
[API](https://ddtrace.readthedocs.io/en/stable/versioning.html#interfaces)
changes
- Testing strategy adequately addresses listed risks
- Newly-added code is easy to change
- Release note makes sense to a user of the library
- If necessary, author has acknowledged and discussed the performance
implications of this PR as reported in the benchmarks PR comment
- Backport labels are set in a manner that is consistent with the
[release branch maintenance
policy](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting)

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Christophe Papazian <114495376+christophe-papazian@users.noreply.github.com>
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