From 0ce6bc5ec70ff84eb2829f91f286a93687e77a46 Mon Sep 17 00:00:00 2001 From: Julian Andres Klode Date: Fri, 5 Oct 2018 12:29:39 +0200 Subject: Set DPKG_FRONTEND_LOCKED when running {pre,post}-invoke scripts Some post-invoke scripts install packages, which fails because the environment variable is not set. This sets the variable for all three kinds of scripts {pre,post-}invoke and pre-install-pkgs, but we will only allow post-invoke at a later time. Gbp-Dch: full (cherry picked from commit 6675601c81de85b40dc89772c1d6d17f1811c5ba) LP: #1796808 --- apt-pkg/contrib/fileutl.cc | 3 ++ apt-pkg/deb/dpkgpm.cc | 3 ++ test/integration/test-frontend-lock | 80 +++++++++++++++++++++++++++++++++++++ 3 files changed, 86 insertions(+) create mode 100755 test/integration/test-frontend-lock diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc index 85d7b36c7..eab05de4f 100644 --- a/apt-pkg/contrib/fileutl.cc +++ b/apt-pkg/contrib/fileutl.cc @@ -24,6 +24,7 @@ #include #include #include +#include #include #include @@ -101,6 +102,8 @@ bool RunScripts(const char *Cnf) // This is the child if (Child == 0) { + if (_system != nullptr && _system->IsLocked() == true && (stringcasecmp(Cnf, "dpkg::post-invoke") == 0 || stringcasecmp(Cnf, "dpkg::pre-invoke") == 0)) + setenv("DPKG_FRONTEND_LOCKED", "true", 1); if (_config->FindDir("DPkg::Chroot-Directory","/") != "/") { std::cerr << "Chrooting into " diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc index 790019b98..c8e55fe14 100644 --- a/apt-pkg/deb/dpkgpm.cc +++ b/apt-pkg/deb/dpkgpm.cc @@ -480,6 +480,9 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf) strprintf(hookfd, "%d", InfoFD); setenv("APT_HOOK_INFO_FD", hookfd.c_str(), 1); + if (_system != nullptr && _system->IsLocked() == true && stringcasecmp(Cnf, "DPkg::Pre-Install-Pkgs") == 0) + setenv("DPKG_FRONTEND_LOCKED", "true", 1); + debSystem::DpkgChrootDirectory(); const char *Args[4]; Args[0] = "/bin/sh"; diff --git a/test/integration/test-frontend-lock b/test/integration/test-frontend-lock new file mode 100755 index 000000000..939344afc --- /dev/null +++ b/test/integration/test-frontend-lock @@ -0,0 +1,80 @@ +#!/bin/sh +set -e + +TESTDIR="$(readlink -f "$(dirname "$0")")" +. "$TESTDIR/framework" + +setupenvironment +configarchitecture 'i386' + +insertinstalledpackage 'package1' 'i386' '1.0' +insertinstalledpackage 'package2' 'i386' '1.0' +insertinstalledpackage 'package3' 'i386' '1.0' +insertinstalledpackage 'package4' 'i386' '1.0' +insertinstalledpackage 'package5' 'i386' '1.0' +insertinstalledpackage 'package6' 'i386' '1.0' +buildsimplenativepackage 'foo' 'all' '1' + +setupaptarchive + +buildsimplenativepackage 'bar' 'all' '1' + + +# Checks that the correct variable is set +msgmsg 'Post-Invoke script has DPKG_FRONTEND_LOCKED set' +testsuccess aptget -q -y -o Dpkg::Post-Invoke::="echo DPKG_FRONTEND_LOCKED=\$DPKG_FRONTEND_LOCKED" remove package1 +cp rootdir/tmp/testsuccess.output install.output +testsuccess grep DPKG_FRONTEND_LOCKED=true install.output + +msgmsg 'Pre-Invoke script has DPKG_FRONTEND_LOCKED set' +testsuccess aptget -q -y -o Dpkg::Pre-Invoke::="echo DPKG_FRONTEND_LOCKED=\$DPKG_FRONTEND_LOCKED" remove package2 +cp rootdir/tmp/testsuccess.output install.output +testsuccess grep DPKG_FRONTEND_LOCKED=true install.output + +msgmsg 'Pre-Install-Pkgs script has DPKG_FRONTEND_LOCKED set' +testsuccess aptget -q -y -o DPkg::Pre-Install-Pkgs::="echo DPKG_FRONTEND_LOCKED=\$DPKG_FRONTEND_LOCKED" remove package3 +cp rootdir/tmp/testsuccess.output install.output +testsuccess grep DPKG_FRONTEND_LOCKED=true install.output + + +# Check that the frontend lock is hold by apt-get +msgmsg 'Post-Invoke script runs while frontend is locked' +testfailure aptget -q -y -o Dpkg::Post-Invoke::="apt-get remove" remove package4 +cp rootdir/tmp/testfailure.output install.output +testsuccess grep "E: Unable to acquire the dpkg frontend lock (${TMPWORKINGDIRECTORY}/rootdir/var/lib/dpkg/lock-frontend), is another process using it?" install.output +testsuccess grep "E: Problem executing scripts DPkg::Post-Invoke 'apt-get remove'" install.output + +msgmsg 'Pre-Invoke script runs while frontend is locked' +testfailure aptget -q -y -o Dpkg::Pre-Invoke::="apt-get remove" remove package5 +cp rootdir/tmp/testfailure.output install.output +testsuccess grep "E: Unable to acquire the dpkg frontend lock (${TMPWORKINGDIRECTORY}/rootdir/var/lib/dpkg/lock-frontend), is another process using it?" install.output +testsuccess grep "E: Problem executing scripts DPkg::Pre-Invoke 'apt-get remove'" install.output + +msgmsg 'Pre-Install-Pkgs runs while frontend is locked' +testfailure aptget -q -y -o DPkg::Pre-Install-Pkgs::="apt-get remove" remove package6 +cp rootdir/tmp/testfailure.output install.output +testsuccess grep "E: Unable to acquire the dpkg frontend lock (${TMPWORKINGDIRECTORY}/rootdir/var/lib/dpkg/lock-frontend), is another process using it?" install.output +testsuccess grep "E: Sub-process apt-get remove returned an error code (100)" install.output +testsuccess grep "Failure running script apt-get remove" install.output + + +# Applied test case from DonKult +msgmsg 'Applied case of frontend locking' +cat > ./post-invoke < rootdir/etc/apt/apt.conf.d/01dpkgpostinvoke + +testdpkgnotinstalled 'foo' 'bar' +testsuccess apt show foo +testfailure apt show bar + +testsuccess apt install foo -s +testdpkgnotinstalled 'foo' 'bar' + +testsuccess apt install foo +testdpkginstalled 'foo' 'bar' -- cgit v1.2.3