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[Launchpad Bug Tracker <1798706@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package gce-compute-image-packages -
20180905+dfsg1-0ubuntu1~14.04.1

---------------
gce-compute-image-packages (20180905+dfsg1-0ubuntu1~14.04.1) trusty; urgency=medium

  * debian/patches/set-LDFLAGS-for-PAM.patch: Fix missing symbols
    when using oslogin due to misording of the boost regex library
    in linking the PAM modules. (LP: #1798706)

gce-compute-image-packages (20180905+dfsg1-0ubuntu1~14.04.0) trusty;
urgency=medium

  * Backport to Trusty
    - Revert ordering shutdown scripts after snapd.service.
    - Revert adding /snap/bin to PATH for startup/shutdown scripts
    - Revert to using dh-systemd because Xenial does not have the debhelper
  * Revert "Build depend on debhelper (>= 9.20160709) instead of on dh-systemd"
    This reverts commit 1afdbde3f27ab4d1712b1a0d4cc14df3a0528bdc.
    Xenial does not have that debhelper version thus dh-systemd is needed there.
  * Build-depend on libboost-regex-dev for regex support
  * Choose std:: or boost:: regex based on support for C++11
  * Set LDFLAGS at the end of the the c++ command line right before libs.
    This fixes passig additional libs to make, namely -lboost_regex
  * Link with boost for regex support
  * Free tests from C++11 constructs to let them being compiled without C++11 support

gce-compute-image-packages (20180905+dfsg1-0ubuntu1) cosmic;
urgency=medium

  [ Balint Reczey ]
  * New upstream version 20180905+dfsg1 (LP: #1792466)
    - Restart the network daemon if networking is restarted.
    - Prevent setup of the default ethernet interface.
    - Accounts daemon can now verify username is 32 characters or less.
    - Prevent IP forwarding daemon log spam.
    - Make default shell configurable when executing metadata scripts.
    - Rename distro directory to distro_lib.
  * debian/control: Update Vcs-* fields to point to the new packaging repository
  * Update shared library symlinks
  * Drop 0001-Adjust-tests-to-changed-LoadJsonArrayToCache-behavio.patch,
    it is integrated upstream
  * Build depend on debhelper (>= 9.20160709) instead of on dh-systemd
    to keep Lintian happy.

  [ Google Cloud Team ]
  * Remove NTP dependency from packaging

gce-compute-image-packages (20180510+dfsg1-0ubuntu5) cosmic;
urgency=medium

  * Depend on the same version of google-compute-engine-oslogin
  * Only Recommend rsyslog | system-log-daemon (LP: #1780109)

gce-compute-image-packages (20180510+dfsg1-0ubuntu4) cosmic;
urgency=medium

  * debian/patches/0004-order-shutdown-scripts-after-snapd.patch: Order
    shutdown scripts after snapd.service.
  * debian/patches/0005-add-snap-bin-to-path.patch: Add /snap/bin to
    PATH for startup/shutdown scripts.

 -- Daniel Axtens <daniel.axtens@xxxxxxxxxxxxx>  Fri, 19 Oct 2018
12:41:42 +1100

** Changed in: gce-compute-image-packages (Ubuntu Trusty)
       Status: Fix Committed => Fix Released

** Changed in: gce-compute-image-packages (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1798706

Title:
  Incomplete linking with boost_regex

Status in gce-compute-image-packages package in Ubuntu:
  In Progress
Status in gce-compute-image-packages source package in Trusty:
  Fix Released
Status in gce-compute-image-packages source package in Xenial:
  Fix Released

Bug description:
  SRU Justification
  =================

  [Impact]
  oslogin fails on Xenial and Trusty.

  In auth.log we see:

  Oct 17 16:35:59 davecore-oslogin sshd[10073]: PAM unable to dlopen(pam_oslogin_login.so): /lib/security/pam_oslogin_login.so: cannot open shared object file: No such file or directory
  Oct 17 16:35:59 davecore-oslogin sshd[10073]: PAM adding faulty module: pam_oslogin_login.so
  Oct 17 16:35:59 davecore-oslogin sshd[10073]: PAM unable to dlopen(pam_oslogin_admin.so): /lib/security/pam_oslogin_admin.so: cannot open shared object file: No such file or directory
  Oct 17 16:35:59 davecore-oslogin sshd[10073]: PAM adding faulty module: pam_oslogin_admin.so

  The error message is a bit deceptive - PAM tries to load the module
  from the correct location, fails, and then tries the other location
  where it is missing. It then reports the missing error rather than the
  real error.

  symlink the module into both paths leads to a much more useful error
  message:

  Oct 18 06:45:12 dja-202158 sshd[16554]: PAM unable to dlopen(pam_oslogin_login.so): /lib/security/pam_oslogin_login.so: undefined symbol: _ZN5boost9re_detail12perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE14construct_initERKNS_11basic_regexIcSJ_EENS_15regex_constants12_match_flagsE
  Oct 18 06:45:12 dja-202158 sshd[16554]: PAM adding faulty module: pam_oslogin_login.so
  Oct 18 06:45:12 dja-202158 sshd[16554]: PAM unable to dlopen(pam_oslogin_admin.so): /lib/security/pam_oslogin_admin.so: undefined symbol: _ZN5boost9re_detail12perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE14construct_initERKNS_11basic_regexIcSJ_EENS_15regex_constants12_match_flagsE

  [Test case]
   - set up GCE VM
   - turn on oslogin
   - attempt to log in

  [Fix]
  debian/patches/0002-Set-LDFLAGS-at-the-end-of-the-c-command-line-right-b.patch re-orders the link flags to link boost_regex for oslogin. However, this didn't change the flags for PAM module linking. So fix that too.

  [Regression Potential]
  - fixes a regression
  - limited to oslogin, and how it is linked.

  [Other Notes]
  We still see a scary list of warnings when building, but they don't seem to have an impact on the common path:
  dpkg-shlibdeps: warning: symbol _ZN5boost9re_detail13put_mem_blockEPv used by debian/google-compute-engine-oslogin/lib/libnss_google-compute-engine-oslogin-1.3.1.so found in none of the libraries
  dpkg-shlibdeps: warning: symbol _ZN5boost9re_detail14verify_optionsEjNS_15regex_constants12_match_flagsE used by debian/google-compute-engine-oslogin/lib/libnss_google-compute-engine-oslogin-1.3.1.so found in none of the libraries
  dpkg-shlibdeps: warning: symbol _ZNK5boost9re_detail31cpp_regex_traits_implementationIcE17transform_primaryEPKcS4_ used by debian/google-compute-engine-oslogin/lib/libnss_google-compute-engine-oslogin-1.3.1.so found in none of the libraries
  dpkg-shlibdeps: warning: symbol _ZN5boost13match_resultsIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISB_EEEE12maybe_assignERKSF_ used by debian/google-compute-engine-oslogin/lib/libnss_google-compute-engine-oslogin-1.3.1.so found in none of the libraries
  dpkg-shlibdeps: warning: symbol _ZN5boost9re_detail12perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE14construct_initERKNS_11basic_regexIcSJ_EENS_15regex_constants12_match_flagsE used by debian/google-compute-engine-oslogin/lib/libnss_google-compute-engine-oslogin-1.3.1.so found in none of the libraries
  dpkg-shlibdeps: warning: symbol _ZN5boost11basic_regexIcNS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE9do_assignEPKcS7_j used by debian/google-compute-engine-oslogin/lib/libnss_google-compute-engine-oslogin-1.3.1.so found in none of the libraries
  dpkg-shlibdeps: warning: symbol _ZN5boost9re_detail19raise_runtime_errorERKSt13runtime_error used by debian/google-compute-engine-oslogin/lib/libnss_google-compute-engine-oslogin-1.3.1.so found in none of the libraries
  dpkg-shlibdeps: warning: symbol _ZNK5boost9re_detail31cpp_regex_traits_implementationIcE9transformEPKcS4_ used by debian/google-compute-engine-oslogin/lib/libnss_google-compute-engine-oslogin-1.3.1.so found in none of the libraries
  dpkg-shlibdeps: warning: symbol _ZN5boost9re_detail24get_default_error_stringENS_15regex_constants10error_typeE used by debian/google-compute-engine-oslogin/lib/libnss_google-compute-engine-oslogin-1.3.1.so found in none of the libraries
  dpkg-shlibdeps: warning: symbol _ZN5boost9re_detail13get_mem_blockEv used by debian/google-compute-engine-oslogin/lib/libnss_google-compute-engine-oslogin-1.3.1.so found in none of the libraries

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