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Changes In Branch runtime-loading-of-deps Excluding Merge-Ins

This is equivalent to a diff from 0c7c510048 to e14e862239

2017-12-27
18:54
Integrated dlmopen() wrapper library (not for general use) check-in: 59356166dc user: rkeene tags: trunk
18:48
Added a wrapper PKCS#11 module which uses GNU dlmopen to segregate loading cackey and its libraries to avoid issues with different linkspaces Closed-Leaf check-in: 45c70bc44d user: rkeene tags: dlopen-wrapper
17:59
Started work on updating DOD certs Leaf check-in: ff2eb37b0a user: rkeene tags: update-dod-certs
17:52
Started work on runtime loading of dependencies Leaf check-in: e14e862239 user: rkeene tags: runtime-loading-of-deps
2017-07-17
13:56
Updated to treat returning a zero-length signed message as an error check-in: 0c7c510048 user: rkeene tags: trunk
13:56
Corrected typo causing debug builds to fail check-in: d02f2af7a5 user: rkeene tags: trunk

Modified aclocal/Makefile from [2810947b90] to [7b6874b298]. 

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../aclocal.m4: acx_pthread.m4 dc_shobjs.m4 dc_pcsc.m4 dc_versionscript.m4
../aclocal.m4: acx_pthread.m4 dc_shobjs.m4 dc_pcsc.m4 dc_versionscript.m4 dc_dlfuncs.m4
	cat $^ > "$@"

Added aclocal/dc_dlfuncs.m4 version [d34cc673cd]. 























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AC_DEFUN([DC_DLFUNCS], [
	dnl Check for dl headers and functions
	AC_CHECK_HEADERS(dlfcn.h)
	if test -n "${ac_cv_func_dlsym}"; then
		AC_CHECK_FUNC(dlsym, [
			AC_DEFINE([HAVE_DLSYM], [1], [Have dlsym()])
		])
	else
		SAVE_LIBS="${LIBS}"
		for addlibs in '' '-ldl'; do
			LIBS="${SAVE_LIBS} ${addlibs}"
			unset ac_cv_func_dlsym
			AC_CHECK_FUNC(dlsym, [
				AC_DEFINE([HAVE_DLSYM], [1], [Have dlsym()])
				SAVE_LIBS="${LIBS}"
				break
			])
		done
		LIBS="${SAVE_LIBS}"
	fi
])








Modified cackey.c
from [de5cf6edd0]
to [47e7747ccc].




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#  ifdef HAVE_LIBZ
#    include <zlib.h>
#  endif
#else
#  ifdef HAVE_LIBZ
#    undef HAVE_LIBZ
#  endif
#endif
#ifndef _THREAD_EMULATION
#  ifdef HAVE_DLFCN_H
#    ifdef HAVE_DLSYM
#      include <dlfcn.h>
#      define HAVE_CACKEY_MUTEX_PTHREAD_FUNCS 1
#    endif
#  endif
#endif
#ifdef CACKEY_DEBUG_SEARCH_SPEEDTEST
#  include <sys/time.h>
#endif

#define CK_PTR *
#define CK_DEFINE_FUNCTION(returnType, name) returnType name




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		return(-1);
	}
#  endif
#endif

	return(x509_read_ret);
}

/* Dynamically load pthreads from the running application */
#ifdef HAVE_CACKEY_MUTEX_PTHREAD_FUNCS
#warning building with pthreads opened via dlsym
struct cackey_mutex_pthread_funcs_st {
	int (*pthread_mutex_init)(pthread_mutex_t *restrict mutex, const pthread_mutexattr_t *restrict attr);
	int (*pthread_mutex_lock)(pthread_mutex_t *mutex);
	int (*pthread_mutex_unlock)(pthread_mutex_t *mutex);
};

static struct cackey_mutex_pthread_funcs_st *cackey_mutex_pthread_funcs(void) {
	static struct cackey_mutex_pthread_funcs_st funcs = {0};
	static int init = 0;

	if (init != 0) {
		return(&funcs);
	}

	funcs.pthread_mutex_init = dlsym(RTLD_DEFAULT, "pthread_mutex_init");
	funcs.pthread_mutex_lock = dlsym(RTLD_DEFAULT, "pthread_mutex_lock");
	funcs.pthread_mutex_unlock = dlsym(RTLD_DEFAULT, "pthread_mutex_unlock");

	init = 1;

	return(&funcs);
}
#define cackey_pthread_mutex_init cackey_mutex_pthread_funcs()->pthread_mutex_init
#define cackey_pthread_mutex_lock cackey_mutex_pthread_funcs()->pthread_mutex_lock
#define cackey_pthread_mutex_unlock cackey_mutex_pthread_funcs()->pthread_mutex_unlock
#else
#define cackey_pthread_mutex_init pthread_mutex_init
#define cackey_pthread_mutex_lock pthread_mutex_lock
#define cackey_pthread_mutex_unlock pthread_mutex_unlock
#endif

/* Returns 0 on success */
static int cackey_mutex_create(void **mutex) {
	pthread_mutex_t *pthread_mutex;
	int pthread_retval;
	CK_RV custom_retval;

	CACKEY_DEBUG_PRINTF("Called.");

	if ((cackey_args.flags & CKF_OS_LOCKING_OK) == CKF_OS_LOCKING_OK) {
		pthread_mutex = malloc(sizeof(*pthread_mutex));
		if (!pthread_mutex) {
			CACKEY_DEBUG_PRINTF("Failed to allocate memory.");

			return(-1);
		}

		pthread_retval = pthread_mutex_init(pthread_mutex, NULL);
		pthread_retval = cackey_pthread_mutex_init(pthread_mutex, NULL);
		if (pthread_retval != 0) {
			CACKEY_DEBUG_PRINTF("pthread_mutex_init() returned error (%i).", pthread_retval);

			return(-1);
		}

		*mutex = pthread_mutex;




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	CK_RV custom_retval;

	CACKEY_DEBUG_PRINTF("Called.");

	if ((cackey_args.flags & CKF_OS_LOCKING_OK) == CKF_OS_LOCKING_OK) {
		pthread_mutex = mutex;

		pthread_retval = pthread_mutex_lock(pthread_mutex);
		pthread_retval = cackey_pthread_mutex_lock(pthread_mutex);
		if (pthread_retval != 0) {
			CACKEY_DEBUG_PRINTF("pthread_mutex_lock() returned error (%i).", pthread_retval);

			return(-1);
		}
	} else {
		if (cackey_args.LockMutex) {




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	CK_RV custom_retval;

	CACKEY_DEBUG_PRINTF("Called.");

	if ((cackey_args.flags & CKF_OS_LOCKING_OK) == CKF_OS_LOCKING_OK) {
		pthread_mutex = mutex;

		pthread_retval = pthread_mutex_unlock(pthread_mutex);
		pthread_retval = cackey_pthread_mutex_unlock(pthread_mutex);
		if (pthread_retval != 0) {
			CACKEY_DEBUG_PRINTF("pthread_mutex_unlock() returned error (%i).", pthread_retval);

			return(-1);
		}
	} else {
		if (cackey_args.UnlockMutex) {




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		if (args->CreateMutex == NULL || args->DestroyMutex == NULL || args->LockMutex == NULL || args->UnlockMutex == NULL) {
			if (args->CreateMutex != NULL || args->DestroyMutex != NULL || args->LockMutex != NULL || args->UnlockMutex != NULL) {
				CACKEY_DEBUG_PRINTF("Error. Some, but not All threading primitives provided.");

				return(CKR_ARGUMENTS_BAD);
			}
		} else {
#ifdef HAVE_CACKEY_MUTEX_PTHREAD_FUNCS
			if (cackey_mutex_pthread_funcs()->pthread_mutex_init == NULL || cackey_mutex_pthread_funcs()->pthread_mutex_lock == NULL || cackey_mutex_pthread_funcs()->pthread_mutex_unlock == NULL) {
				CACKEY_DEBUG_PRINTF("Error. Library is not linked to pthreads and we are unable to find them at runtime.");

				return(CKR_GENERAL_ERROR);
			}
#endif
		}
	} else {
		cackey_args.CreateMutex = NULL;
		cackey_args.DestroyMutex = NULL;
		cackey_args.LockMutex = NULL;
		cackey_args.UnlockMutex = NULL;
		cackey_args.flags = 0;




︙







Modified configure.ac
from [a419c60439]
to [383d36814d].




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])

dnl Check for PC/SC headers and libraries
DC_PCSC

dnl Check for ZLIB libraries
AC_CHECK_LIB(z, uncompress)

dnl Check for dl headers and functions
DC_DLFUNCS

dnl Verify that a basic program will compile
AC_CACHE_CHECK([if basic PC/SC program works], cackey_cv_pcsc_works, [
	AC_LINK_IFELSE(
		AC_LANG_PROGRAM([[
#ifdef HAVE_WINTYPES_H
#  include <wintypes.h>




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