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configd: T6504: send sudo_user on session init and set env variable #3701

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merged 3 commits into from
Jun 24, 2024
Merged

configd: T6504: send sudo_user on session init and set env variable #3701

merged 3 commits into from
Jun 24, 2024

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jestabro
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@jestabro jestabro commented Jun 21, 2024 •
edited by c-po
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Change Summary

The environment variable SUDO_USER is checked by system_login.py so as to prevent deleting the current user. Provide from config session and set within configd environment.

Types of changes

  • Bug fix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Code style update (formatting, renaming)
  • Refactoring (no functional changes)
  • Migration from an old Vyatta component to vyos-1x, please link to related PR inside obsoleted component
  • Other (please describe):

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  • I have read the CONTRIBUTING document
  • I have linked this PR to one or more Phabricator Task(s)
  • I have run the components SMOKETESTS if applicable
  • My commit headlines contain a valid Task id
  • My change requires a change to the documentation
  • I have updated the documentation accordingly

@jestabro jestabro self-assigned this Jun 21, 2024
@jestabro jestabro requested a review from a team as a code owner June 21, 2024 19:22
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github-actions bot commented Jun 21, 2024 •
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No issues in PR Title / Commit Title

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c-po commented Jun 21, 2024

The fix unfortunately does not work.

vyos.utils.auth.get_current_user() returns nobody when beeing executed under vyos-configd

See environment of vyos-configd below

foo@LR2.wue3# commit
nobody
environ({'LANG': 'en_US.UTF-8', 'PATH': '/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin', 'HOME': '/root', 'LOGNAME': 'root', 'USER': 'root', 'SHELL': '/bin/bash', 'INVOCATION_ID': '4042c3114d34401f80de31fb3baaca7f', 'JOURNAL_STREAM': '7:20361', 'SYSTEMD_EXEC_PID': '4522'})
foo is logged in, forcing logout!

@jestabro jestabro marked this pull request as draft June 21, 2024 20:57
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Move to draft to revise ...

@jestabro
configd: T6504: send sudo_user on session init and set env variable
7016f84 
The environment variable SUDO_USER is checked by system_login.py so as
to prevent deleting the current user. Provide from config session and
set within configd environment.
@jestabro jestabro changed the title configd: T6504: drop unnecessary set of SUDO_* in env configd: T6504: send sudo_user on session init and set env variable Jun 22, 2024
@jestabro jestabro marked this pull request as ready for review June 22, 2024 13:30
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@c-po revised with proper solution.

c-po
c-po approved these changes Jun 23, 2024
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Tests work as exepcted, thanks!

cpo@LR2.wue3# delete system login user cpo
[edit]
cpo@LR2.wue3# commit

Attempting to delete current user: cpo

[[system login]] failed
Commit failed

@c-po c-po enabled auto-merge June 23, 2024 06:17
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c-po commented Jun 24, 2024

This should be considered a backport to circinus and sagitta in the future to fix this behavior.

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c-po commented Jun 24, 2024

Without vyos-configd

$ /usr/libexec/vyos/tests/smoke/cli/test_system_login.py
test_add_linux_system_user (__main__.TestSystemLogin.test_add_linux_system_user) ... ok
test_delete_current_user (__main__.TestSystemLogin.test_delete_current_user) ... ok
test_radius_kernel_features (__main__.TestSystemLogin.test_radius_kernel_features) ... ok
test_system_login_max_login_session (__main__.TestSystemLogin.test_system_login_max_login_session) ... ok
test_system_login_otp (__main__.TestSystemLogin.test_system_login_otp) ... ok
test_system_login_radius_ipv4 (__main__.TestSystemLogin.test_system_login_radius_ipv4) ... ok
test_system_login_radius_ipv6 (__main__.TestSystemLogin.test_system_login_radius_ipv6) ... ok
test_system_login_tacacs (__main__.TestSystemLogin.test_system_login_tacacs) ... ok
test_system_login_user (__main__.TestSystemLogin.test_system_login_user) ... ok
test_system_user_ssh_key (__main__.TestSystemLogin.test_system_user_ssh_key) ... ok

----------------------------------------------------------------------
Ran 10 tests in 176.126s

OK

With vyos-configd

$ /usr/libexec/vyos/tests/smoke/cli/test_system_login.py
test_add_linux_system_user (__main__.TestSystemLogin.test_add_linux_system_user) ...
User "backup" can not be created, conflict with local system account!

ok
test_delete_current_user (__main__.TestSystemLogin.test_delete_current_user) ...
Attempting to delete current user: cpo

ok
test_radius_kernel_features (__main__.TestSystemLogin.test_radius_kernel_features) ... ok
test_system_login_max_login_session (__main__.TestSystemLogin.test_system_login_max_login_session) ...
"login timeout" must be configured!

ok
test_system_login_otp (__main__.TestSystemLogin.test_system_login_otp) ... ok
test_system_login_radius_ipv4 (__main__.TestSystemLogin.test_system_login_radius_ipv4) ...
Only one IPv4 source-address can be set!

ok
test_system_login_radius_ipv6 (__main__.TestSystemLogin.test_system_login_radius_ipv6) ...
Only one IPv6 source-address can be set!

ok
test_system_login_tacacs (__main__.TestSystemLogin.test_system_login_tacacs) ... ok
test_system_login_user (__main__.TestSystemLogin.test_system_login_user) ... ok
test_system_user_ssh_key (__main__.TestSystemLogin.test_system_user_ssh_key) ...
Missing type for public-key "vyos_test@domain-foo.com"!

ok

----------------------------------------------------------------------
Ran 10 tests in 171.783s

OK

@c-po c-po merged commit 4cd052b into vyos:current Jun 24, 2024
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@Mergifyio backport circinus

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mergify bot commented Jun 24, 2024 •
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backport circinus

✅ Backports have been created

@mergify mergify bot mentioned this pull request Jun 24, 2024
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c-po added a commit that referenced this pull request Jun 24, 2024
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Merge pull request #3719 from vyos/mergify/bp/circinus/pr-3701
0259c43 
configd: T6504: send sudo_user on session init and set env variable (backport #3701)
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@sever-sever sever-sever sever-sever approved these changes

@c-po c-po c-po approved these changes

@dmbaturin dmbaturin Awaiting requested review from dmbaturin dmbaturin is a code owner automatically assigned from vyos/reviewers

@sarthurdev sarthurdev Awaiting requested review from sarthurdev sarthurdev is a code owner automatically assigned from vyos/reviewers

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