tests: Get rid of malloc calls in test_glibc_thread_support.c.

Thread structures are allocated on stack now.

Signed-off-by: Robin Hack <hack.robin@gmail.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

uwrap: Optimalization of uid_wrapper_enabled() function.

Check only bool variable inside uwrap structure instead
of calling whole uid_init().

In the best case only one mutex lock is need when check.

NOTES:
 * This patch uses __atomic_load gcc builtin function.
 * uid_init() were moved outside uid_wrapper_enabled() function.

Signed-off-by: Robin Hack <hack.robin@gmail.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

uid_wrapper: Fix race condition - uwrap_init.

Patch moves uwrap_id_mutex before if (uwrap.initialised) statement
which can be passed by concurrent threads.

Signed-off-by: Robin Hack <hack.robin@gmail.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

uwrap: Fix race condition - glibc lookups.

Patch adds libc_symbol_binding_mutex which guards global table of libc
functions and their lookup.

Signed-off-by: Robin Hack <hack.robin@gmail.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

uwrap: Add library constructor and move pthread_atfork inside.

Library constructor is used for pthread_atfork call. Moved here because
pthread_atfork is cumulative and should be called only once.

Signed-off-by: Robin Hack <hack.robin@gmail.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

uwrap: Use UWRAP_LOCK/UNLOCK macros instead of pthread_mutex_lock/unlock calls.

New macros UWRAP_LOCK/UNLOCK has been created and all calls to
pthread_mutex_lock/unlock has been replaced by these macros.

Signed-off-by: Robin Hack <hack.robin@gmail.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

uwrap: Fix the handle loop for older gcc versions.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

TESTS: SYS_gettimeofday behaves differently on OS X

SYS_gettimeofday returns the number of seconds on OS X and doesn't set
the tz parameter.

Signed-off-by: Jakub Hrozek <jakub.hrozek@gmail.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

TESTS: add -DOSX if building on OS X

We need some OS X specific branch in the tests.

Signed-off-by: Jakub Hrozek <jakub.hrozek@gmail.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

testsuite: Fix comparison

Signed-off-by: Jakub Hrozek <jakub.hrozek@gmail.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

tests: Remove test with legacy "access" system call.

AArch64 architecture does not implement legacy system calls and as a
result SYS_access is not defined (as it got replaced with "accessat"
syscall).

Signed-off-by: Marcin Juszkiewicz <mjuszkiewicz@redhat.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

Bump version to 1.0.2.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

uwrap: Support dropping all supplemetary groups with setgroups()

Dropping all supplementary groups is a common practice when changing
UIDs. This patch adds support for dropping all supplementary groups when
setgroups is called with size=0.

Signed-off-by: Jakub Hrozek <jakub.hrozek@gmail.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
tests: Fix test for dopping supplementary groups.

Signed-off-by: Andreas Schneider <asn@samba.org>

doc: Add a manpage for uid_wrapper.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

uwrap: Add logging if uwrap is enabled correctly.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

uwrap: Log error if we are out of memory.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

uwrap: Add a better logging function.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

cmake: Check for HAVE_FUNCTION_ATTRIBUTE_FORMAT.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

uwrap: Fall back to RTLD_NEXT if we can't find libc.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

uwrap: Add mutex in uwrap_destructor().

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

cmake: Fix a typo in uid_wrapper-config.cmake.in.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

Add README.install - instructions for building and installing.

Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>

cmake: Fix policy check.

cmake: Install cmake config into the correct directory.

cmake: Use 2.8.13 as version to check.

uwrap: Fix memory leak on error.

Found by Coverity.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

cmake: Only set policy in cmake 3.0.

Signed-off-by: Andreas Schneider <asn@samba.org>

cmake: Fix configure warning with cmake 3.0.

Signed-off-by: Andreas Schneider <asn@samba.org>

cmake: Create the compile command database by default.

Signed-off-by: Andreas Schneider <asn@samba.org>

Bump version to 1.0.1.

cmake: Add uid_wrapper-config.cmake.

cmake: Use UID_WRAPPER_LOCATION.

cmake: Add --libs output for pkg-config.

cpack: Don't package the obj directory.

tests: Use bool in the prototype too.

Reviewed-by: Stefan Metzmacher <metze@samba.org>

tests: Use a bool for the test_uwrap_enabled test.

Reviewed-by: Jeremy Allison <jra@samba.org>

src: Use a bool for uid_wrapper_enabled().

Reviewed-by: Jeremy Allison <jra@samba.org>

Add ChangeLog.

Add TODO

cmake: Add cmake version file.

cmake: Add a pkg-config file.

Update README.

uwrap: Rename uwrap_enabled() to uid_wrapper_enabled().

uwrap: Rename the variable to get myuid from geteuid().

uwrap: Make uwrap_enabled public so we can use it.

tests: Fix some memory leaks.

cmake: Add valgrind suppression file.

uwrap: Pass bool values to uwrap_new_id().

uwrap: Fix a memory leak when we reuse an allocated id.

uwrap: Add a destructor to free resources.

cmake: Add check for HAVE_DESTRUCTOR_ATTRIBUTE.

uwrap: Use realloc for setgroups().

uwrap: Fix loading the system libraries.

Thanks metze!

tests: Add test_uwrap_disabled.

testsuite: Add missing include.

cmake: Fix HAVE_SETRESUID and HAVE_SETRESGID.

tests: Add test_uwrap_syscall_setgroups().

tests: Add test_uwrap_setresuid().

tests: Add test_uwrap_setreuid().

tests: Add test_uwrap_setresgid().

tests: Add test_uwrap_setregid().

tests: The tests should always be executed with uid_wrapper.

nwrap: Fix prototype of libc_setresuid().

cmake: Fix defines for setres(u|g)id.

uwrap: Remove obsolete uwrap_libc_fn().

uwrap: Load libc_syscall correctly.

uwrap: Add libc_getgroups().

uwrap: Add libc_getgroups().

uwrap: Add libc_getegid().

uwrap: Add libc_setregid().

uwrap: Add libc_setregid().

uwrap: Add libc_setgeid().

uwarp: Add libc_getgid().

uwrap: Add libc_setgid().

uwrap: Add libc_geteuid().

uwrap: Add libc_setresuid().

uwrap: Add libc_setreuid().

uwrap: Add libc_seteuid().

uwrap: Add libc_getuid().

uwrap: Add libc_setuid().

uwrap: Add uwrap_load_lib_function().

uwrap: Add uwrap_load_lib_handle().

tests: Add a test for getgroups().

tests: Add a test for setgroups().

tests: Add a test for setgid().

cmake: Set _FORTIFY_SOURCE only for optimized builds.

tests: Use SYS_gettimeofday for testing.

SYS_stat is a bad idea cause you need to know kernel internals.

tests: Fix testsuite on Solaris.

uwrap: Fix build on Solaris.

cmake: Fix dashboard drop location.

cmake: Detect OSX.

config: Add missing define for APPLE.

uwrap: Move pthread_atfork() to correct position.

uwarp: Load libc functions on OSX.

cmake: Add environment variables for OSX.

cmake: Build getuids only on Linux.

uwrap: Fix build on OSX.

cmake: Add check for syscall prototype.

cmake: Add check for setgroups prototype.

uwrap: Prevent deadlocks if the application forks.