2 * assembly.c: Routines for loading assemblies.
5 * Miguel de Icaza (miguel@ximian.com)
7 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
18 #include "object-internals.h"
19 #include <mono/metadata/loader.h>
20 #include <mono/metadata/tabledefs.h>
21 #include <mono/metadata/metadata-internals.h>
22 #include <mono/metadata/profiler-private.h>
23 #include <mono/metadata/class-internals.h>
24 #include <mono/metadata/domain-internals.h>
25 #include <mono/metadata/mono-endian.h>
26 #include <mono/metadata/mono-debug.h>
27 #include <mono/io-layer/io-layer.h>
28 #include <mono/utils/mono-uri.h>
29 #include <mono/metadata/mono-config.h>
30 #include <mono/utils/mono-digest.h>
31 #include <mono/utils/mono-logger.h>
32 #include <mono/metadata/reflection.h>
33 #include <mono/metadata/coree.h>
36 #include <sys/types.h>
41 #ifdef PLATFORM_MACOSX
42 #include <mach-o/dyld.h>
45 /* AssemblyVersionMap: an assembly name and the assembly version set on which it is based */
47 const char* assembly_name;
48 guint8 version_set_index;
51 /* the default search path is empty, the first slot is replaced with the computed value */
58 /* Contains the list of directories to be searched for assemblies (MONO_PATH) */
59 static char **assemblies_path = NULL;
61 /* Contains the list of directories that point to auxiliary GACs */
62 static char **extra_gac_paths = NULL;
64 /* The list of system assemblies what will be remapped to the running
65 * runtime version. WARNING: this list must be sorted.
67 static const AssemblyVersionMap framework_assemblies [] = {
69 {"Commons.Xml.Relaxng", 0},
76 {"Microsoft.VisualBasic", 1},
77 {"Microsoft.VisualC", 1},
79 {"Mono.CompilerServices.SymbolWriter", 0},
81 {"Mono.Data.SybaseClient", 0},
83 {"Mono.Data.TdsClient", 0},
84 {"Mono.GetOptions", 0},
88 {"Mono.Security.Win32", 0},
90 {"Novell.Directory.Ldap", 0},
94 {"System.Configuration.Install", 0},
96 {"System.Data.OracleClient", 0},
97 {"System.Data.SqlXml", 0},
99 {"System.DirectoryServices", 0},
100 {"System.Drawing", 0},
101 {"System.Drawing.Design", 0},
102 {"System.EnterpriseServices", 0},
103 {"System.Management", 0},
104 {"System.Messaging", 0},
105 {"System.Runtime.Remoting", 0},
106 {"System.Runtime.Serialization.Formatters.Soap", 0},
107 {"System.Security", 0},
108 {"System.ServiceProcess", 0},
110 {"System.Web.Mobile", 0},
111 {"System.Web.Services", 0},
112 {"System.Windows.Forms", 0},
118 * keeps track of loaded assemblies
120 static GList *loaded_assemblies = NULL;
121 static MonoAssembly *corlib;
123 /* This protects loaded_assemblies and image->references */
124 #define mono_assemblies_lock() EnterCriticalSection (&assemblies_mutex)
125 #define mono_assemblies_unlock() LeaveCriticalSection (&assemblies_mutex)
126 static CRITICAL_SECTION assemblies_mutex;
128 /* If defined, points to the bundled assembly information */
129 const MonoBundledAssembly **bundles;
131 /* Loaded assembly binding info */
132 static GSList *loaded_assembly_bindings = NULL;
135 mono_assembly_invoke_search_hook_internal (MonoAssemblyName *aname, gboolean refonly, gboolean postload);
137 mono_assembly_is_in_gac (const gchar *filanem);
140 encode_public_tok (const guchar *token, gint32 len)
142 const static gchar allowed [] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
146 res = g_malloc (len * 2 + 1);
147 for (i = 0; i < len; i++) {
148 res [i * 2] = allowed [token [i] >> 4];
149 res [i * 2 + 1] = allowed [token [i] & 0xF];
156 * mono_public_tokens_are_equal:
157 * @pubt1: first public key token
158 * @pubt2: second public key token
160 * Compare two public key tokens and return #TRUE is they are equal and #FALSE
164 mono_public_tokens_are_equal (const unsigned char *pubt1, const unsigned char *pubt2)
166 return memcmp (pubt1, pubt2, 16) == 0;
170 check_path_env (void)
173 char **splitted, **dest;
175 path = g_getenv ("MONO_PATH");
179 splitted = g_strsplit (path, G_SEARCHPATH_SEPARATOR_S, 1000);
181 g_strfreev (assemblies_path);
182 assemblies_path = dest = splitted;
190 if (g_getenv ("MONO_DEBUG") == NULL)
193 splitted = assemblies_path;
195 if (**splitted && !g_file_test (*splitted, G_FILE_TEST_IS_DIR))
196 g_warning ("'%s' in MONO_PATH doesn't exist or has wrong permissions.", *splitted);
203 check_extra_gac_path_env (void) {
205 char **splitted, **dest;
207 path = g_getenv ("MONO_GAC_PREFIX");
211 splitted = g_strsplit (path, G_SEARCHPATH_SEPARATOR_S, 1000);
213 g_strfreev (extra_gac_paths);
214 extra_gac_paths = dest = splitted;
222 if (g_getenv ("MONO_DEBUG") == NULL)
226 if (**splitted && !g_file_test (*splitted, G_FILE_TEST_IS_DIR))
227 g_warning ("'%s' in MONO_GAC_PREFIX doesn't exist or has wrong permissions.", *splitted);
234 assembly_binding_maps_name (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname)
236 if (strcmp (info->name, aname->name))
239 if (info->major != aname->major || info->minor != aname->minor)
242 if ((info->culture != NULL) != (aname->culture != NULL))
245 if (info->culture && strcmp (info->culture, aname->culture))
248 if (!mono_public_tokens_are_equal (info->public_key_token, aname->public_key_token))
255 mono_assembly_binding_info_free (MonoAssemblyBindingInfo *info)
258 g_free (info->culture);
262 get_publisher_policy_info (MonoImage *image, MonoAssemblyName *aname, MonoAssemblyBindingInfo *binding_info)
265 guint32 cols [MONO_MANIFEST_SIZE];
266 const gchar *filename;
267 gchar *subpath, *fullpath;
269 t = &image->tables [MONO_TABLE_MANIFESTRESOURCE];
270 /* MS Impl. accepts policy assemblies with more than
271 * one manifest resource, and only takes the first one */
273 binding_info->is_valid = FALSE;
277 mono_metadata_decode_row (t, 0, cols, MONO_MANIFEST_SIZE);
278 if ((cols [MONO_MANIFEST_IMPLEMENTATION] & MONO_IMPLEMENTATION_MASK) != MONO_IMPLEMENTATION_FILE) {
279 binding_info->is_valid = FALSE;
283 filename = mono_metadata_string_heap (image, cols [MONO_MANIFEST_NAME]);
284 g_assert (filename != NULL);
286 subpath = g_path_get_dirname (image->name);
287 fullpath = g_build_path (G_DIR_SEPARATOR_S, subpath, filename, NULL);
288 mono_config_parse_publisher_policy (fullpath, binding_info);
292 /* Define the optional elements/attributes before checking */
293 if (!binding_info->culture)
294 binding_info->culture = g_strdup ("");
296 /* Check that the most important elements/attributes exist */
297 if (!binding_info->name || !binding_info->public_key_token [0] || !binding_info->has_old_version_bottom ||
298 !binding_info->has_new_version || !assembly_binding_maps_name (binding_info, aname)) {
299 mono_assembly_binding_info_free (binding_info);
300 binding_info->is_valid = FALSE;
304 binding_info->is_valid = TRUE;
308 compare_versions (AssemblyVersionSet *v, MonoAssemblyName *aname)
310 if (v->major > aname->major)
312 else if (v->major < aname->major)
315 if (v->minor > aname->minor)
317 else if (v->minor < aname->minor)
320 if (v->build > aname->build)
322 else if (v->build < aname->build)
325 if (v->revision > aname->revision)
327 else if (v->revision < aname->revision)
334 check_policy_versions (MonoAssemblyBindingInfo *info, MonoAssemblyName *name)
339 /* If has_old_version_top doesn't exist, we don't have an interval */
340 if (!info->has_old_version_top) {
341 if (compare_versions (&info->old_version_bottom, name) == 0)
347 /* Check that the version defined by name is valid for the interval */
348 if (compare_versions (&info->old_version_top, name) < 0)
351 /* We should be greater or equal than the small version */
352 if (compare_versions (&info->old_version_bottom, name) > 0)
359 * mono_assembly_names_equal:
361 * @r: second assembly.
363 * Compares two MonoAssemblyNames and returns whether they are equal.
365 * This compares the names, the cultures, the release version and their
368 * Returns: TRUE if both assembly names are equal.
371 mono_assembly_names_equal (MonoAssemblyName *l, MonoAssemblyName *r)
373 if (!l->name || !r->name)
376 if (strcmp (l->name, r->name))
379 if (l->culture && r->culture && strcmp (l->culture, r->culture))
382 if (l->major != r->major || l->minor != r->minor ||
383 l->build != r->build || l->revision != r->revision)
384 if (! ((l->major == 0 && l->minor == 0 && l->build == 0 && l->revision == 0) || (r->major == 0 && r->minor == 0 && r->build == 0 && r->revision == 0)))
387 if (!l->public_key_token [0] || !r->public_key_token [0])
390 if (!mono_public_tokens_are_equal (l->public_key_token, r->public_key_token))
396 static MonoAssembly *
397 load_in_path (const char *basename, const char** search_path, MonoImageOpenStatus *status, MonoBoolean refonly)
401 MonoAssembly *result;
403 for (i = 0; search_path [i]; ++i) {
404 fullpath = g_build_filename (search_path [i], basename, NULL);
405 result = mono_assembly_open_full (fullpath, status, refonly);
414 * mono_assembly_setrootdir:
415 * @root_dir: The pathname of the root directory where we will locate assemblies
417 * This routine sets the internal default root directory for looking up
420 * This is used by Windows installations to compute dynamically the
421 * place where the Mono assemblies are located.
425 mono_assembly_setrootdir (const char *root_dir)
428 * Override the MONO_ASSEMBLIES directory configured at compile time.
430 /* Leak if called more than once */
431 default_path [0] = g_strdup (root_dir);
435 * mono_assembly_getrootdir:
437 * Obtains the root directory used for looking up assemblies.
439 * Returns: a string with the directory, this string should not be freed.
441 G_CONST_RETURN gchar *
442 mono_assembly_getrootdir (void)
444 return default_path [0];
449 * @assembly_dir: the base directory for assemblies
450 * @config_dir: the base directory for configuration files
452 * This routine is used internally and by developers embedding
453 * the runtime into their own applications.
455 * There are a number of cases to consider: Mono as a system-installed
456 * package that is available on the location preconfigured or Mono in
457 * a relocated location.
459 * If you are using a system-installed Mono, you can pass NULL
460 * to both parameters. If you are not, you should compute both
461 * directory values and call this routine.
463 * The values for a given PREFIX are:
465 * assembly_dir: PREFIX/lib
466 * config_dir: PREFIX/etc
468 * Notice that embedders that use Mono in a relocated way must
469 * compute the location at runtime, as they will be in control
470 * of where Mono is installed.
473 mono_set_dirs (const char *assembly_dir, const char *config_dir)
475 #if defined (MONO_ASSEMBLIES)
476 if (assembly_dir == NULL)
477 assembly_dir = MONO_ASSEMBLIES;
479 #if defined (MONO_CFG_DIR)
480 if (config_dir == NULL)
481 config_dir = MONO_CFG_DIR;
483 mono_assembly_setrootdir (assembly_dir);
484 mono_set_config_dir (config_dir);
490 compute_base (char *path)
492 char *p = strrchr (path, '/');
496 /* Not a well known Mono executable, we are embedded, cant guess the base */
497 if (strcmp (p, "/mono") && strcmp (p, "/monodis") && strcmp (p, "/mint") && strcmp (p, "/monodiet"))
501 p = strrchr (path, '/');
505 if (strcmp (p, "/bin") != 0)
514 mono_set_dirs (MONO_ASSEMBLIES, MONO_CFG_DIR);
521 char *config, *lib, *mono;
525 * Only /usr prefix is treated specially
527 if (strncmp (exe, MONO_BINDIR, strlen (MONO_BINDIR)) == 0 || (base = compute_base (exe)) == NULL){
532 config = g_build_filename (base, "etc", NULL);
533 lib = g_build_filename (base, "lib", NULL);
534 mono = g_build_filename (lib, "mono/1.0", NULL);
535 if (stat (mono, &buf) == -1)
538 mono_set_dirs (lib, config);
546 #endif /* HOST_WIN32 */
551 * Registers the root directory for the Mono runtime, for Linux and Solaris 10,
552 * this auto-detects the prefix where Mono was installed.
555 mono_set_rootdir (void)
557 #if defined(HOST_WIN32) || (defined(PLATFORM_MACOSX) && !defined(TARGET_ARM))
558 gchar *bindir, *installdir, *root, *name, *config;
561 name = mono_get_module_file_name ((HMODULE) &__ImageBase);
565 * _NSGetExecutablePath may return -1 to indicate buf is not large
566 * enough, but we ignore that case to avoid having to do extra dynamic
567 * allocation for the path and hope that 4096 is enough - this is
568 * ok in the Linux/Solaris case below at least...
572 guint buf_size = sizeof (buf);
574 if (_NSGetExecutablePath (buf, &buf_size) == 0)
575 name = g_strdup (buf);
584 bindir = g_path_get_dirname (name);
585 installdir = g_path_get_dirname (bindir);
586 root = g_build_path (G_DIR_SEPARATOR_S, installdir, "lib", NULL);
588 config = g_build_filename (root, "..", "etc", NULL);
589 mono_set_dirs (root, config);
596 #elif defined(DISABLE_MONO_AUTODETECTION)
604 s = readlink ("/proc/self/exe", buf, sizeof (buf)-1);
612 /* Solaris 10 style */
613 str = g_strdup_printf ("/proc/%d/path/a.out", getpid ());
614 s = readlink (str, buf, sizeof (buf)-1);
626 * mono_assemblies_init:
628 * Initialize global variables used by this module.
631 mono_assemblies_init (void)
634 * Initialize our internal paths if we have not been initialized yet.
635 * This happens when embedders use Mono.
637 if (mono_assembly_getrootdir () == NULL)
641 check_extra_gac_path_env ();
643 InitializeCriticalSection (&assemblies_mutex);
647 mono_assembly_fill_assembly_name (MonoImage *image, MonoAssemblyName *aname)
649 MonoTableInfo *t = &image->tables [MONO_TABLE_ASSEMBLY];
650 guint32 cols [MONO_ASSEMBLY_SIZE];
655 mono_metadata_decode_row (t, 0, cols, MONO_ASSEMBLY_SIZE);
658 aname->hash_value = NULL;
659 aname->name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLY_NAME]);
660 aname->culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLY_CULTURE]);
661 aname->flags = cols [MONO_ASSEMBLY_FLAGS];
662 aname->major = cols [MONO_ASSEMBLY_MAJOR_VERSION];
663 aname->minor = cols [MONO_ASSEMBLY_MINOR_VERSION];
664 aname->build = cols [MONO_ASSEMBLY_BUILD_NUMBER];
665 aname->revision = cols [MONO_ASSEMBLY_REV_NUMBER];
666 aname->hash_alg = cols [MONO_ASSEMBLY_HASH_ALG];
667 if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
668 guchar* token = g_malloc (8);
673 pkey = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
674 len = mono_metadata_decode_blob_size (pkey, &pkey);
675 aname->public_key = (guchar*)pkey;
677 mono_digest_get_public_token (token, aname->public_key, len);
678 encoded = encode_public_tok (token, 8);
679 g_strlcpy ((char*)aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
685 aname->public_key = NULL;
686 memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
689 if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
690 aname->public_key = (guchar*)mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
693 aname->public_key = 0;
699 * mono_stringify_assembly_name:
700 * @aname: the assembly name.
702 * Convert @aname into its string format. The returned string is dynamically
703 * allocated and should be freed by the caller.
705 * Returns: a newly allocated string with a string representation of
709 mono_stringify_assembly_name (MonoAssemblyName *aname)
711 return g_strdup_printf (
712 "%s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
714 aname->major, aname->minor, aname->build, aname->revision,
715 aname->culture && *aname->culture? aname->culture: "neutral",
716 aname->public_key_token [0] ? (char *)aname->public_key_token : "null",
717 (aname->flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
721 assemblyref_public_tok (MonoImage *image, guint32 key_index, guint32 flags)
723 const gchar *public_tok;
726 public_tok = mono_metadata_blob_heap (image, key_index);
727 len = mono_metadata_decode_blob_size (public_tok, &public_tok);
729 if (flags & ASSEMBLYREF_FULL_PUBLIC_KEY_FLAG) {
731 mono_digest_get_public_token (token, (guchar*)public_tok, len);
732 return encode_public_tok (token, 8);
735 return encode_public_tok ((guchar*)public_tok, len);
739 * mono_assembly_addref:
740 * @assemnly: the assembly to reference
742 * This routine increments the reference count on a MonoAssembly.
743 * The reference count is reduced every time the method mono_assembly_close() is
747 mono_assembly_addref (MonoAssembly *assembly)
749 InterlockedIncrement (&assembly->ref_count);
752 static MonoAssemblyName *
753 mono_assembly_remap_version (MonoAssemblyName *aname, MonoAssemblyName *dest_aname)
755 const MonoRuntimeInfo *current_runtime;
756 int pos, first, last;
758 if (aname->name == NULL) return aname;
759 current_runtime = mono_get_runtime_info ();
762 last = G_N_ELEMENTS (framework_assemblies) - 1;
764 while (first <= last) {
766 pos = first + (last - first) / 2;
767 res = strcmp (aname->name, framework_assemblies[pos].assembly_name);
769 const AssemblyVersionSet* vset;
770 int index = framework_assemblies[pos].version_set_index;
771 g_assert (index < G_N_ELEMENTS (current_runtime->version_sets));
772 vset = ¤t_runtime->version_sets [index];
774 if (aname->major == vset->major && aname->minor == vset->minor &&
775 aname->build == vset->build && aname->revision == vset->revision)
778 if ((aname->major | aname->minor | aname->build | aname->revision) != 0)
779 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_ASSEMBLY,
780 "The request to load the assembly %s v%d.%d.%d.%d was remapped to v%d.%d.%d.%d",
782 aname->major, aname->minor, aname->build, aname->revision,
783 vset->major, vset->minor, vset->build, vset->revision
786 memcpy (dest_aname, aname, sizeof(MonoAssemblyName));
787 dest_aname->major = vset->major;
788 dest_aname->minor = vset->minor;
789 dest_aname->build = vset->build;
790 dest_aname->revision = vset->revision;
792 } else if (res < 0) {
802 * mono_assembly_get_assemblyref:
804 * Fill out ANAME with the assembly name of the INDEXth assembly reference in IMAGE.
807 mono_assembly_get_assemblyref (MonoImage *image, int index, MonoAssemblyName *aname)
810 guint32 cols [MONO_ASSEMBLYREF_SIZE];
813 t = &image->tables [MONO_TABLE_ASSEMBLYREF];
815 mono_metadata_decode_row (t, index, cols, MONO_ASSEMBLYREF_SIZE);
817 hash = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLYREF_HASH_VALUE]);
818 aname->hash_len = mono_metadata_decode_blob_size (hash, &hash);
819 aname->hash_value = hash;
820 aname->name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_NAME]);
821 aname->culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_CULTURE]);
822 aname->flags = cols [MONO_ASSEMBLYREF_FLAGS];
823 aname->major = cols [MONO_ASSEMBLYREF_MAJOR_VERSION];
824 aname->minor = cols [MONO_ASSEMBLYREF_MINOR_VERSION];
825 aname->build = cols [MONO_ASSEMBLYREF_BUILD_NUMBER];
826 aname->revision = cols [MONO_ASSEMBLYREF_REV_NUMBER];
828 if (cols [MONO_ASSEMBLYREF_PUBLIC_KEY]) {
829 gchar *token = assemblyref_public_tok (image, cols [MONO_ASSEMBLYREF_PUBLIC_KEY], aname->flags);
830 g_strlcpy ((char*)aname->public_key_token, token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
833 memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
838 mono_assembly_load_reference (MonoImage *image, int index)
840 MonoAssembly *reference;
841 MonoAssemblyName aname;
842 MonoImageOpenStatus status;
845 * image->references is shared between threads, so we need to access
846 * it inside a critical section.
848 mono_assemblies_lock ();
849 if (!image->references) {
850 MonoTableInfo *t = &image->tables [MONO_TABLE_ASSEMBLYREF];
852 image->references = g_new0 (MonoAssembly *, t->rows + 1);
854 reference = image->references [index];
855 mono_assemblies_unlock ();
859 mono_assembly_get_assemblyref (image, index, &aname);
861 if (image->assembly && image->assembly->ref_only) {
862 /* We use the loaded corlib */
863 if (!strcmp (aname.name, "mscorlib"))
864 reference = mono_assembly_load_full (&aname, image->assembly->basedir, &status, FALSE);
866 reference = mono_assembly_loaded_full (&aname, TRUE);
868 /* Try a postload search hook */
869 reference = mono_assembly_invoke_search_hook_internal (&aname, TRUE, TRUE);
873 * Here we must advice that the error was due to
874 * a non loaded reference using the ReflectionOnly api
877 reference = REFERENCE_MISSING;
879 reference = mono_assembly_load (&aname, image->assembly? image->assembly->basedir: NULL, &status);
881 if (reference == NULL){
884 if (status == MONO_IMAGE_ERROR_ERRNO && errno == ENOENT) {
885 extra_msg = g_strdup_printf ("The assembly was not found in the Global Assembly Cache, a path listed in the MONO_PATH environment variable, or in the location of the executing assembly (%s).\n", image->assembly != NULL ? image->assembly->basedir : "" );
886 } else if (status == MONO_IMAGE_ERROR_ERRNO) {
887 extra_msg = g_strdup_printf ("System error: %s\n", strerror (errno));
888 } else if (status == MONO_IMAGE_MISSING_ASSEMBLYREF) {
889 extra_msg = g_strdup ("Cannot find an assembly referenced from this one.\n");
890 } else if (status == MONO_IMAGE_IMAGE_INVALID) {
891 extra_msg = g_strdup ("The file exists but is not a valid assembly.\n");
893 extra_msg = g_strdup ("");
896 g_warning ("The following assembly referenced from %s could not be loaded:\n"
897 " Assembly: %s (assemblyref_index=%d)\n"
898 " Version: %d.%d.%d.%d\n"
899 " Public Key: %s\n%s",
900 image->name, aname.name, index,
901 aname.major, aname.minor, aname.build, aname.revision,
902 strlen ((char*)aname.public_key_token) == 0 ? "(none)" : (char*)aname.public_key_token, extra_msg);
906 mono_assemblies_lock ();
907 if (reference == NULL) {
908 /* Flag as not found */
909 reference = REFERENCE_MISSING;
912 if (!image->references [index]) {
913 if (reference != REFERENCE_MISSING){
914 mono_assembly_addref (reference);
916 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly Ref addref %s %p -> %s %p: %d\n",
917 image->assembly->aname.name, image->assembly, reference->aname.name, reference, reference->ref_count);
920 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Failed to load assembly %s %p\n",
921 image->assembly->aname.name, image->assembly);
924 image->references [index] = reference;
926 mono_assemblies_unlock ();
928 if (image->references [index] != reference) {
929 /* Somebody loaded it before us */
930 mono_assembly_close (reference);
935 mono_assembly_load_references (MonoImage *image, MonoImageOpenStatus *status)
937 /* This is a no-op now but it is part of the embedding API so we can't remove it */
938 *status = MONO_IMAGE_OK;
941 typedef struct AssemblyLoadHook AssemblyLoadHook;
942 struct AssemblyLoadHook {
943 AssemblyLoadHook *next;
944 MonoAssemblyLoadFunc func;
948 AssemblyLoadHook *assembly_load_hook = NULL;
951 mono_assembly_invoke_load_hook (MonoAssembly *ass)
953 AssemblyLoadHook *hook;
955 for (hook = assembly_load_hook; hook; hook = hook->next) {
956 hook->func (ass, hook->user_data);
961 mono_install_assembly_load_hook (MonoAssemblyLoadFunc func, gpointer user_data)
963 AssemblyLoadHook *hook;
965 g_return_if_fail (func != NULL);
967 hook = g_new0 (AssemblyLoadHook, 1);
969 hook->user_data = user_data;
970 hook->next = assembly_load_hook;
971 assembly_load_hook = hook;
975 free_assembly_load_hooks (void)
977 AssemblyLoadHook *hook, *next;
979 for (hook = assembly_load_hook; hook; hook = next) {
985 typedef struct AssemblySearchHook AssemblySearchHook;
986 struct AssemblySearchHook {
987 AssemblySearchHook *next;
988 MonoAssemblySearchFunc func;
994 AssemblySearchHook *assembly_search_hook = NULL;
997 mono_assembly_invoke_search_hook_internal (MonoAssemblyName *aname, gboolean refonly, gboolean postload)
999 AssemblySearchHook *hook;
1001 for (hook = assembly_search_hook; hook; hook = hook->next) {
1002 if ((hook->refonly == refonly) && (hook->postload == postload)) {
1003 MonoAssembly *ass = hook->func (aname, hook->user_data);
1013 mono_assembly_invoke_search_hook (MonoAssemblyName *aname)
1015 return mono_assembly_invoke_search_hook_internal (aname, FALSE, FALSE);
1019 mono_install_assembly_search_hook_internal (MonoAssemblySearchFunc func, gpointer user_data, gboolean refonly, gboolean postload)
1021 AssemblySearchHook *hook;
1023 g_return_if_fail (func != NULL);
1025 hook = g_new0 (AssemblySearchHook, 1);
1027 hook->user_data = user_data;
1028 hook->refonly = refonly;
1029 hook->postload = postload;
1030 hook->next = assembly_search_hook;
1031 assembly_search_hook = hook;
1035 mono_install_assembly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1037 mono_install_assembly_search_hook_internal (func, user_data, FALSE, FALSE);
1041 free_assembly_search_hooks (void)
1043 AssemblySearchHook *hook, *next;
1045 for (hook = assembly_search_hook; hook; hook = next) {
1052 mono_install_assembly_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1054 mono_install_assembly_search_hook_internal (func, user_data, TRUE, FALSE);
1058 mono_install_assembly_postload_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1060 mono_install_assembly_search_hook_internal (func, user_data, FALSE, TRUE);
1064 mono_install_assembly_postload_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1066 mono_install_assembly_search_hook_internal (func, user_data, TRUE, TRUE);
1069 typedef struct AssemblyPreLoadHook AssemblyPreLoadHook;
1070 struct AssemblyPreLoadHook {
1071 AssemblyPreLoadHook *next;
1072 MonoAssemblyPreLoadFunc func;
1076 static AssemblyPreLoadHook *assembly_preload_hook = NULL;
1077 static AssemblyPreLoadHook *assembly_refonly_preload_hook = NULL;
1079 static MonoAssembly *
1080 invoke_assembly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
1082 AssemblyPreLoadHook *hook;
1083 MonoAssembly *assembly;
1085 for (hook = assembly_preload_hook; hook; hook = hook->next) {
1086 assembly = hook->func (aname, assemblies_path, hook->user_data);
1087 if (assembly != NULL)
1094 static MonoAssembly *
1095 invoke_assembly_refonly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
1097 AssemblyPreLoadHook *hook;
1098 MonoAssembly *assembly;
1100 for (hook = assembly_refonly_preload_hook; hook; hook = hook->next) {
1101 assembly = hook->func (aname, assemblies_path, hook->user_data);
1102 if (assembly != NULL)
1110 mono_install_assembly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
1112 AssemblyPreLoadHook *hook;
1114 g_return_if_fail (func != NULL);
1116 hook = g_new0 (AssemblyPreLoadHook, 1);
1118 hook->user_data = user_data;
1119 hook->next = assembly_preload_hook;
1120 assembly_preload_hook = hook;
1124 mono_install_assembly_refonly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
1126 AssemblyPreLoadHook *hook;
1128 g_return_if_fail (func != NULL);
1130 hook = g_new0 (AssemblyPreLoadHook, 1);
1132 hook->user_data = user_data;
1133 hook->next = assembly_refonly_preload_hook;
1134 assembly_refonly_preload_hook = hook;
1138 free_assembly_preload_hooks (void)
1140 AssemblyPreLoadHook *hook, *next;
1142 for (hook = assembly_preload_hook; hook; hook = next) {
1147 for (hook = assembly_refonly_preload_hook; hook; hook = next) {
1154 absolute_dir (const gchar *filename)
1165 if (g_path_is_absolute (filename)) {
1166 part = g_path_get_dirname (filename);
1167 res = g_strconcat (part, G_DIR_SEPARATOR_S, NULL);
1172 cwd = g_get_current_dir ();
1173 mixed = g_build_filename (cwd, filename, NULL);
1174 parts = g_strsplit (mixed, G_DIR_SEPARATOR_S, 0);
1179 for (i = 0; (part = parts [i]) != NULL; i++) {
1180 if (!strcmp (part, "."))
1183 if (!strcmp (part, "..")) {
1184 if (list && list->next) /* Don't remove root */
1185 list = g_list_delete_link (list, list);
1187 list = g_list_prepend (list, part);
1191 result = g_string_new ("");
1192 list = g_list_reverse (list);
1194 /* Ignores last data pointer, which should be the filename */
1195 for (tmp = list; tmp && tmp->next != NULL; tmp = tmp->next){
1197 g_string_append_printf (result, "%s%c", (char *) tmp->data,
1202 g_string_free (result, FALSE);
1207 return g_strdup (".");
1214 * mono_assembly_open_from_bundle:
1215 * @filename: Filename requested
1216 * @status: return value
1218 * This routine tries to open the assembly specified by `filename' from the
1219 * defined bundles, if found, returns the MonoImage for it, if not found
1223 mono_assembly_open_from_bundle (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
1227 MonoImage *image = NULL;
1230 * we do a very simple search for bundled assemblies: it's not a general
1231 * purpose assembly loading mechanism.
1237 name = g_path_get_basename (filename);
1239 mono_assemblies_lock ();
1240 for (i = 0; !image && bundles [i]; ++i) {
1241 if (strcmp (bundles [i]->name, name) == 0) {
1242 image = mono_image_open_from_data_with_name ((char*)bundles [i]->data, bundles [i]->size, FALSE, status, refonly, name);
1246 mono_assemblies_unlock ();
1249 mono_image_addref (image);
1256 mono_assembly_open_full (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
1260 MonoImageOpenStatus def_status;
1264 g_return_val_if_fail (filename != NULL, NULL);
1267 status = &def_status;
1268 *status = MONO_IMAGE_OK;
1270 if (strncmp (filename, "file://", 7) == 0) {
1271 GError *error = NULL;
1272 gchar *uri = (gchar *) filename;
1276 * MS allows file://c:/... and fails on file://localhost/c:/...
1277 * They also throw an IndexOutOfRangeException if "file://"
1280 uri = g_strdup_printf ("file:///%s", uri + 7);
1283 uri = mono_escape_uri_string (tmpuri);
1284 fname = g_filename_from_uri (uri, NULL, &error);
1287 if (tmpuri != filename)
1290 if (error != NULL) {
1291 g_warning ("%s\n", error->message);
1292 g_error_free (error);
1293 fname = g_strdup (filename);
1296 fname = g_strdup (filename);
1299 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1300 "Assembly Loader probing location: '%s'.", fname);
1303 if (!mono_assembly_is_in_gac (fname))
1304 new_fname = mono_make_shadow_copy (fname);
1305 if (new_fname && new_fname != fname) {
1308 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1309 "Assembly Loader shadow-copied assembly to: '%s'.", fname);
1314 if (bundles != NULL)
1315 image = mono_assembly_open_from_bundle (fname, status, refonly);
1318 image = mono_image_open_full (fname, status, refonly);
1321 if (*status == MONO_IMAGE_OK)
1322 *status = MONO_IMAGE_ERROR_ERRNO;
1327 if (image->assembly) {
1328 /* Already loaded by another appdomain */
1329 mono_assembly_invoke_load_hook (image->assembly);
1330 mono_image_close (image);
1332 return image->assembly;
1335 ass = mono_assembly_load_from_full (image, fname, status, refonly);
1338 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1339 "Assembly Loader loaded assembly from location: '%s'.", filename);
1341 mono_config_for_assembly (ass->image);
1344 /* Clear the reference added by mono_image_open */
1345 mono_image_close (image);
1353 free_item (gpointer val, gpointer user_data)
1359 * mono_assembly_load_friends:
1362 * Load the list of friend assemblies that are allowed to access
1363 * the assembly's internal types and members. They are stored as assembly
1364 * names in custom attributes.
1366 * This is an internal method, we need this because when we load mscorlib
1367 * we do not have the mono_defaults.internals_visible_class loaded yet,
1368 * so we need to load these after we initialize the runtime.
1370 * LOCKING: Acquires the assemblies lock plus the loader lock.
1373 mono_assembly_load_friends (MonoAssembly* ass)
1376 MonoCustomAttrInfo* attrs;
1379 if (ass->friend_assembly_names_inited)
1382 attrs = mono_custom_attrs_from_assembly (ass);
1384 mono_assemblies_lock ();
1385 ass->friend_assembly_names_inited = TRUE;
1386 mono_assemblies_unlock ();
1390 mono_assemblies_lock ();
1391 if (ass->friend_assembly_names_inited) {
1392 mono_assemblies_unlock ();
1395 mono_assemblies_unlock ();
1399 * We build the list outside the assemblies lock, the worse that can happen
1400 * is that we'll need to free the allocated list.
1402 for (i = 0; i < attrs->num_attrs; ++i) {
1403 MonoCustomAttrEntry *attr = &attrs->attrs [i];
1404 MonoAssemblyName *aname;
1407 /* Do some sanity checking */
1408 if (!attr->ctor || attr->ctor->klass != mono_defaults.internals_visible_class)
1410 if (attr->data_size < 4)
1412 data = (const char*)attr->data;
1413 /* 0xFF means null string, see custom attr format */
1414 if (data [0] != 1 || data [1] != 0 || (data [2] & 0xFF) == 0xFF)
1416 slen = mono_metadata_decode_value (data + 2, &data);
1417 aname = g_new0 (MonoAssemblyName, 1);
1418 /*g_print ("friend ass: %s\n", data);*/
1419 if (mono_assembly_name_parse_full (data, aname, TRUE, NULL, NULL)) {
1420 list = g_slist_prepend (list, aname);
1425 mono_custom_attrs_free (attrs);
1427 mono_assemblies_lock ();
1428 if (ass->friend_assembly_names_inited) {
1429 mono_assemblies_unlock ();
1430 g_slist_foreach (list, free_item, NULL);
1431 g_slist_free (list);
1434 ass->friend_assembly_names = list;
1436 /* Because of the double checked locking pattern above */
1437 mono_memory_barrier ();
1438 ass->friend_assembly_names_inited = TRUE;
1439 mono_assemblies_unlock ();
1443 * mono_assembly_open:
1444 * @filename: Opens the assembly pointed out by this name
1445 * @status: where a status code can be returned
1447 * mono_assembly_open opens the PE-image pointed by @filename, and
1448 * loads any external assemblies referenced by it.
1450 * Return: a pointer to the MonoAssembly if @filename contains a valid
1451 * assembly or NULL on error. Details about the error are stored in the
1455 mono_assembly_open (const char *filename, MonoImageOpenStatus *status)
1457 return mono_assembly_open_full (filename, status, FALSE);
1461 mono_assembly_load_from_full (MonoImage *image, const char*fname,
1462 MonoImageOpenStatus *status, gboolean refonly)
1464 MonoAssembly *ass, *ass2;
1467 if (!image->tables [MONO_TABLE_ASSEMBLY].rows) {
1468 /* 'image' doesn't have a manifest -- maybe someone is trying to Assembly.Load a .netmodule */
1469 *status = MONO_IMAGE_IMAGE_INVALID;
1473 #if defined (HOST_WIN32)
1478 tmp_fn = g_strdup (fname);
1479 for (i = strlen (tmp_fn) - 1; i >= 0; i--) {
1480 if (tmp_fn [i] == '/')
1484 base_dir = absolute_dir (tmp_fn);
1488 base_dir = absolute_dir (fname);
1492 * Create assembly struct, and enter it into the assembly cache
1494 ass = g_new0 (MonoAssembly, 1);
1495 ass->basedir = base_dir;
1496 ass->ref_only = refonly;
1499 mono_profiler_assembly_event (ass, MONO_PROFILE_START_LOAD);
1501 mono_assembly_fill_assembly_name (image, &ass->aname);
1503 if (mono_defaults.corlib && strcmp (ass->aname.name, "mscorlib") == 0) {
1504 // MS.NET doesn't support loading other mscorlibs
1507 mono_image_addref (mono_defaults.corlib);
1508 *status = MONO_IMAGE_OK;
1509 return mono_defaults.corlib->assembly;
1512 /* Add a non-temporary reference because of ass->image */
1513 mono_image_addref (image);
1515 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Image addref %s %p -> %s %p: %d\n", ass->aname.name, ass, image->name, image, image->ref_count);
1518 * The load hooks might take locks so we can't call them while holding the
1521 if (ass->aname.name) {
1522 ass2 = mono_assembly_invoke_search_hook_internal (&ass->aname, refonly, FALSE);
1526 mono_image_close (image);
1527 *status = MONO_IMAGE_OK;
1532 mono_assemblies_lock ();
1534 if (image->assembly) {
1536 * This means another thread has already loaded the assembly, but not yet
1537 * called the load hooks so the search hook can't find the assembly.
1539 mono_assemblies_unlock ();
1540 ass2 = image->assembly;
1543 mono_image_close (image);
1544 *status = MONO_IMAGE_OK;
1548 image->assembly = ass;
1550 loaded_assemblies = g_list_prepend (loaded_assemblies, ass);
1551 mono_assemblies_unlock ();
1554 if (image->is_module_handle)
1555 mono_image_fixup_vtable (image);
1558 mono_assembly_invoke_load_hook (ass);
1560 mono_profiler_assembly_loaded (ass, MONO_PROFILE_OK);
1566 mono_assembly_load_from (MonoImage *image, const char *fname,
1567 MonoImageOpenStatus *status)
1569 return mono_assembly_load_from_full (image, fname, status, FALSE);
1573 * mono_assembly_name_free:
1574 * @aname: assembly name to free
1576 * Frees the provided assembly name object.
1577 * (it does not frees the object itself, only the name members).
1580 mono_assembly_name_free (MonoAssemblyName *aname)
1585 g_free ((void *) aname->name);
1586 g_free ((void *) aname->culture);
1587 g_free ((void *) aname->hash_value);
1591 parse_public_key (const gchar *key, gchar** pubkey)
1594 gchar header [16], val, *arr;
1595 gint i, j, offset, bitlen, keylen, pkeylen;
1597 keylen = strlen (key) >> 1;
1601 val = g_ascii_xdigit_value (key [0]) << 4;
1602 val |= g_ascii_xdigit_value (key [1]);
1607 val = g_ascii_xdigit_value (key [24]);
1608 val |= g_ascii_xdigit_value (key [25]);
1620 /* We need the first 16 bytes
1621 * to check whether this key is valid or not */
1622 pkeylen = strlen (pkey) >> 1;
1626 for (i = 0, j = 0; i < 16; i++) {
1627 header [i] = g_ascii_xdigit_value (pkey [j++]) << 4;
1628 header [i] |= g_ascii_xdigit_value (pkey [j++]);
1631 if (header [0] != 0x06 || /* PUBLICKEYBLOB (0x06) */
1632 header [1] != 0x02 || /* Version (0x02) */
1633 header [2] != 0x00 || /* Reserved (word) */
1634 header [3] != 0x00 ||
1635 (guint)(read32 (header + 8)) != 0x31415352) /* DWORD magic = RSA1 */
1638 /* Based on this length, we _should_ be able to know if the length is right */
1639 bitlen = read32 (header + 12) >> 3;
1640 if ((bitlen + 16 + 4) != pkeylen)
1643 /* parsing is OK and the public key itself is not requested back */
1647 /* Encode the size of the blob */
1649 if (keylen <= 127) {
1650 arr = g_malloc (keylen + 1);
1651 arr [offset++] = keylen;
1653 arr = g_malloc (keylen + 2);
1654 arr [offset++] = 0x80; /* 10bs */
1655 arr [offset++] = keylen;
1658 for (i = offset, j = 0; i < keylen + offset; i++) {
1659 arr [i] = g_ascii_xdigit_value (key [j++]) << 4;
1660 arr [i] |= g_ascii_xdigit_value (key [j++]);
1669 build_assembly_name (const char *name, const char *version, const char *culture, const char *token, const char *key, guint32 flags, MonoAssemblyName *aname, gboolean save_public_key)
1671 gint major, minor, build, revision;
1674 gchar *pkey, *pkeyptr, *encoded, tok [8];
1676 memset (aname, 0, sizeof (MonoAssemblyName));
1679 version_parts = sscanf (version, "%u.%u.%u.%u", &major, &minor, &build, &revision);
1680 if (version_parts < 2 || version_parts > 4)
1683 /* FIXME: we should set build & revision to -1 (instead of 0)
1684 if these are not set in the version string. That way, later on,
1685 we can still determine if these were specified. */
1686 aname->major = major;
1687 aname->minor = minor;
1688 if (version_parts >= 3)
1689 aname->build = build;
1692 if (version_parts == 4)
1693 aname->revision = revision;
1695 aname->revision = 0;
1698 aname->flags = flags;
1699 aname->name = g_strdup (name);
1702 if (g_ascii_strcasecmp (culture, "neutral") == 0)
1703 aname->culture = g_strdup ("");
1705 aname->culture = g_strdup (culture);
1708 if (token && strncmp (token, "null", 4) != 0) {
1711 /* the constant includes the ending NULL, hence the -1 */
1712 if (strlen (token) != (MONO_PUBLIC_KEY_TOKEN_LENGTH - 1)) {
1713 mono_assembly_name_free (aname);
1716 lower = g_ascii_strdown (token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1717 g_strlcpy ((char*)aname->public_key_token, lower, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1722 if (strcmp (key, "null") == 0 || !parse_public_key (key, &pkey)) {
1723 mono_assembly_name_free (aname);
1727 len = mono_metadata_decode_blob_size ((const gchar *) pkey, (const gchar **) &pkeyptr);
1728 // We also need to generate the key token
1729 mono_digest_get_public_token ((guchar*) tok, (guint8*) pkeyptr, len);
1730 encoded = encode_public_tok ((guchar*) tok, 8);
1731 g_strlcpy ((gchar*)aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1734 if (save_public_key)
1735 aname->public_key = (guint8*) pkey;
1744 parse_assembly_directory_name (const char *name, const char *dirname, MonoAssemblyName *aname)
1749 parts = g_strsplit (dirname, "_", 3);
1750 if (!parts || !parts[0] || !parts[1] || !parts[2]) {
1755 res = build_assembly_name (name, parts[0], parts[1], parts[2], NULL, 0, aname, FALSE);
1761 mono_assembly_name_parse_full (const char *name, MonoAssemblyName *aname, gboolean save_public_key, gboolean *is_version_defined, gboolean *is_token_defined)
1764 gchar *version = NULL;
1765 gchar *culture = NULL;
1766 gchar *token = NULL;
1768 gchar *retargetable = NULL;
1773 gboolean version_defined;
1774 gboolean token_defined;
1777 if (!is_version_defined)
1778 is_version_defined = &version_defined;
1779 *is_version_defined = FALSE;
1780 if (!is_token_defined)
1781 is_token_defined = &token_defined;
1782 *is_token_defined = FALSE;
1784 parts = tmp = g_strsplit (name, ",", 6);
1785 if (!tmp || !*tmp) {
1790 dllname = g_strstrip (*tmp);
1795 value = g_strstrip (*tmp);
1796 if (!g_ascii_strncasecmp (value, "Version=", 8)) {
1797 *is_version_defined = TRUE;
1798 version = g_strstrip (value + 8);
1799 if (strlen (version) == 0) {
1800 goto cleanup_and_fail;
1806 if (!g_ascii_strncasecmp (value, "Culture=", 8)) {
1807 culture = g_strstrip (value + 8);
1808 if (strlen (culture) == 0) {
1809 goto cleanup_and_fail;
1815 if (!g_ascii_strncasecmp (value, "PublicKeyToken=", 15)) {
1816 *is_token_defined = TRUE;
1817 token = g_strstrip (value + 15);
1818 if (strlen (token) == 0) {
1819 goto cleanup_and_fail;
1825 if (!g_ascii_strncasecmp (value, "PublicKey=", 10)) {
1826 key = g_strstrip (value + 10);
1827 if (strlen (key) == 0) {
1828 goto cleanup_and_fail;
1834 if (!g_ascii_strncasecmp (value, "Retargetable=", 13)) {
1835 retargetable = g_strstrip (value + 13);
1836 if (strlen (retargetable) == 0) {
1837 goto cleanup_and_fail;
1839 if (!g_ascii_strcasecmp (retargetable, "yes")) {
1840 flags |= ASSEMBLYREF_RETARGETABLE_FLAG;
1841 } else if (g_ascii_strcasecmp (retargetable, "no")) {
1842 goto cleanup_and_fail;
1848 if (!g_ascii_strncasecmp (value, "ProcessorArchitecture=", 22)) {
1849 /* this is ignored for now, until we can change MonoAssemblyName */
1858 /* if retargetable flag is set, then we must have a fully qualified name */
1859 if (retargetable != NULL && (version == NULL || culture == NULL || (key == NULL && token == NULL))) {
1860 goto cleanup_and_fail;
1863 res = build_assembly_name (dllname, version, culture, token, key, flags,
1864 aname, save_public_key);
1874 * mono_assembly_name_parse:
1875 * @name: name to parse
1876 * @aname: the destination assembly name
1878 * Parses an assembly qualified type name and assigns the name,
1879 * version, culture and token to the provided assembly name object.
1881 * Returns: true if the name could be parsed.
1884 mono_assembly_name_parse (const char *name, MonoAssemblyName *aname)
1886 return mono_assembly_name_parse_full (name, aname, FALSE, NULL, NULL);
1889 static MonoAssembly*
1890 probe_for_partial_name (const char *basepath, const char *fullname, MonoAssemblyName *aname, MonoImageOpenStatus *status)
1892 gchar *fullpath = NULL;
1894 const char* direntry;
1895 MonoAssemblyName gac_aname;
1896 gint major=-1, minor=0, build=0, revision=0;
1897 gboolean exact_version;
1899 dirhandle = g_dir_open (basepath, 0, NULL);
1903 exact_version = (aname->major | aname->minor | aname->build | aname->revision) != 0;
1905 while ((direntry = g_dir_read_name (dirhandle))) {
1906 gboolean match = TRUE;
1908 if(!parse_assembly_directory_name (aname->name, direntry, &gac_aname))
1911 if (aname->culture != NULL && strcmp (aname->culture, gac_aname.culture) != 0)
1914 if (match && strlen ((char*)aname->public_key_token) > 0 &&
1915 !mono_public_tokens_are_equal (aname->public_key_token, gac_aname.public_key_token))
1919 if (exact_version) {
1920 match = (aname->major == gac_aname.major && aname->minor == gac_aname.minor &&
1921 aname->build == gac_aname.build && aname->revision == gac_aname.revision);
1923 else if (gac_aname.major < major)
1925 else if (gac_aname.major == major) {
1926 if (gac_aname.minor < minor)
1928 else if (gac_aname.minor == minor) {
1929 if (gac_aname.build < build)
1931 else if (gac_aname.build == build && gac_aname.revision <= revision)
1938 major = gac_aname.major;
1939 minor = gac_aname.minor;
1940 build = gac_aname.build;
1941 revision = gac_aname.revision;
1943 fullpath = g_build_path (G_DIR_SEPARATOR_S, basepath, direntry, fullname, NULL);
1946 mono_assembly_name_free (&gac_aname);
1949 g_dir_close (dirhandle);
1951 if (fullpath == NULL)
1954 MonoAssembly *res = mono_assembly_open (fullpath, status);
1961 mono_assembly_load_with_partial_name (const char *name, MonoImageOpenStatus *status)
1964 MonoAssemblyName *aname, base_name, maped_aname;
1965 gchar *fullname, *gacpath;
1968 memset (&base_name, 0, sizeof (MonoAssemblyName));
1971 if (!mono_assembly_name_parse (name, aname))
1975 * If no specific version has been requested, make sure we load the
1976 * correct version for system assemblies.
1978 if ((aname->major | aname->minor | aname->build | aname->revision) == 0)
1979 aname = mono_assembly_remap_version (aname, &maped_aname);
1981 res = mono_assembly_loaded (aname);
1983 mono_assembly_name_free (aname);
1987 res = invoke_assembly_preload_hook (aname, assemblies_path);
1989 res->in_gac = FALSE;
1990 mono_assembly_name_free (aname);
1994 fullname = g_strdup_printf ("%s.dll", aname->name);
1996 if (extra_gac_paths) {
1997 paths = extra_gac_paths;
1998 while (!res && *paths) {
1999 gacpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", aname->name, NULL);
2000 res = probe_for_partial_name (gacpath, fullname, aname, status);
2009 mono_assembly_name_free (aname);
2013 gacpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (), "mono", "gac", aname->name, NULL);
2014 res = probe_for_partial_name (gacpath, fullname, aname, status);
2020 MonoDomain *domain = mono_domain_get ();
2021 MonoReflectionAssembly *refasm = mono_try_assembly_resolve (domain, mono_string_new (domain, name), FALSE);
2023 res = refasm->assembly;
2027 mono_assembly_name_free (aname);
2033 mono_assembly_is_in_gac (const gchar *filename)
2035 const gchar *rootdir;
2039 if (filename == NULL)
2042 for (paths = extra_gac_paths; paths && *paths; paths++) {
2043 if (strstr (*paths, filename) != *paths)
2046 gp = (gchar *) (filename + strlen (*paths));
2047 if (*gp != G_DIR_SEPARATOR)
2050 if (strncmp (gp, "lib", 3))
2053 if (*gp != G_DIR_SEPARATOR)
2056 if (strncmp (gp, "mono", 4))
2059 if (*gp != G_DIR_SEPARATOR)
2062 if (strncmp (gp, "gac", 3))
2065 if (*gp != G_DIR_SEPARATOR)
2071 rootdir = mono_assembly_getrootdir ();
2072 if (strstr (filename, rootdir) != filename)
2075 gp = (gchar *) (filename + strlen (rootdir));
2076 if (*gp != G_DIR_SEPARATOR)
2079 if (strncmp (gp, "mono", 4))
2082 if (*gp != G_DIR_SEPARATOR)
2085 if (strncmp (gp, "gac", 3))
2088 if (*gp != G_DIR_SEPARATOR)
2094 mono_assembly_load_publisher_policy (MonoAssemblyName *aname)
2097 gchar *filename, *pname, *name, *culture, *version, *fullpath, *subpath;
2101 if (strstr (aname->name, ".dll")) {
2102 len = strlen (aname->name) - 4;
2103 name = g_malloc (len);
2104 strncpy (name, aname->name, len);
2106 name = g_strdup (aname->name);
2109 culture = g_utf8_strdown (aname->culture, -1);
2111 culture = g_strdup ("");
2113 pname = g_strdup_printf ("policy.%d.%d.%s", aname->major, aname->minor, name);
2114 version = g_strdup_printf ("0.0.0.0_%s_%s", culture, aname->public_key_token);
2118 filename = g_strconcat (pname, ".dll", NULL);
2119 subpath = g_build_path (G_DIR_SEPARATOR_S, pname, version, filename, NULL);
2125 if (extra_gac_paths) {
2126 paths = extra_gac_paths;
2127 while (!image && *paths) {
2128 fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths,
2129 "lib", "mono", "gac", subpath, NULL);
2130 image = mono_image_open (fullpath, NULL);
2141 fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
2142 "mono", "gac", subpath, NULL);
2143 image = mono_image_open (fullpath, NULL);
2150 static MonoAssemblyName*
2151 mono_assembly_bind_version (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname, MonoAssemblyName *dest_name)
2153 memcpy (dest_name, aname, sizeof (MonoAssemblyName));
2154 dest_name->major = info->new_version.major;
2155 dest_name->minor = info->new_version.minor;
2156 dest_name->build = info->new_version.build;
2157 dest_name->revision = info->new_version.revision;
2162 /* LOCKING: Assumes that we are already locked */
2163 static MonoAssemblyBindingInfo*
2164 search_binding_loaded (MonoAssemblyName *aname)
2168 for (tmp = loaded_assembly_bindings; tmp; tmp = tmp->next) {
2169 MonoAssemblyBindingInfo *info = tmp->data;
2170 if (assembly_binding_maps_name (info, aname))
2177 static MonoAssemblyName*
2178 mono_assembly_apply_binding (MonoAssemblyName *aname, MonoAssemblyName *dest_name)
2180 MonoAssemblyBindingInfo *info, *info2;
2183 if (aname->public_key_token [0] == 0)
2186 mono_loader_lock ();
2187 info = search_binding_loaded (aname);
2188 mono_loader_unlock ();
2190 if (!check_policy_versions (info, aname))
2193 mono_assembly_bind_version (info, aname, dest_name);
2197 info = g_new0 (MonoAssemblyBindingInfo, 1);
2198 info->major = aname->major;
2199 info->minor = aname->minor;
2201 ppimage = mono_assembly_load_publisher_policy (aname);
2203 get_publisher_policy_info (ppimage, aname, info);
2204 mono_image_close (ppimage);
2207 /* Define default error value if needed */
2208 if (!info->is_valid) {
2209 info->name = g_strdup (aname->name);
2210 info->culture = g_strdup (aname->culture);
2211 g_strlcpy ((char *)info->public_key_token, (const char *)aname->public_key_token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
2214 mono_loader_lock ();
2215 info2 = search_binding_loaded (aname);
2217 /* This binding was added by another thread
2219 mono_assembly_binding_info_free (info);
2224 loaded_assembly_bindings = g_slist_prepend (loaded_assembly_bindings, info);
2226 mono_loader_unlock ();
2228 if (!info->is_valid || !check_policy_versions (info, aname))
2231 mono_assembly_bind_version (info, aname, dest_name);
2236 * mono_assembly_load_from_gac
2238 * @aname: The assembly name object
2240 static MonoAssembly*
2241 mono_assembly_load_from_gac (MonoAssemblyName *aname, gchar *filename, MonoImageOpenStatus *status, MonoBoolean refonly)
2243 MonoAssembly *result = NULL;
2244 gchar *name, *version, *culture, *fullpath, *subpath;
2249 if (aname->public_key_token [0] == 0) {
2253 if (strstr (aname->name, ".dll")) {
2254 len = strlen (filename) - 4;
2255 name = g_malloc (len);
2256 strncpy (name, aname->name, len);
2258 name = g_strdup (aname->name);
2261 if (aname->culture) {
2262 culture = g_utf8_strdown (aname->culture, -1);
2264 culture = g_strdup ("");
2267 pubtok = g_ascii_strdown ((char*)aname->public_key_token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
2268 version = g_strdup_printf ("%d.%d.%d.%d_%s_%s", aname->major,
2269 aname->minor, aname->build, aname->revision,
2273 subpath = g_build_path (G_DIR_SEPARATOR_S, name, version, filename, NULL);
2278 if (extra_gac_paths) {
2279 paths = extra_gac_paths;
2280 while (!result && *paths) {
2281 fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", subpath, NULL);
2282 result = mono_assembly_open_full (fullpath, status, refonly);
2289 result->in_gac = TRUE;
2294 fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
2295 "mono", "gac", subpath, NULL);
2296 result = mono_assembly_open_full (fullpath, status, refonly);
2300 result->in_gac = TRUE;
2309 mono_assembly_load_corlib (const MonoRuntimeInfo *runtime, MonoImageOpenStatus *status)
2314 /* g_print ("corlib already loaded\n"); */
2318 if (assemblies_path) {
2319 corlib = load_in_path ("mscorlib.dll", (const char**)assemblies_path, status, FALSE);
2324 /* Load corlib from mono/<version> */
2326 corlib_file = g_build_filename ("mono", runtime->framework_version, "mscorlib.dll", NULL);
2327 if (assemblies_path) {
2328 corlib = load_in_path (corlib_file, (const char**)assemblies_path, status, FALSE);
2330 g_free (corlib_file);
2334 corlib = load_in_path (corlib_file, default_path, status, FALSE);
2335 g_free (corlib_file);
2341 mono_assembly_load_full_nosearch (MonoAssemblyName *aname,
2342 const char *basedir,
2343 MonoImageOpenStatus *status,
2346 MonoAssembly *result;
2347 char *fullpath, *filename;
2348 MonoAssemblyName maped_aname, maped_name_pp;
2353 aname = mono_assembly_remap_version (aname, &maped_aname);
2355 /* Reflection only assemblies don't get assembly binding */
2357 aname = mono_assembly_apply_binding (aname, &maped_name_pp);
2359 result = mono_assembly_loaded_full (aname, refonly);
2363 result = refonly ? invoke_assembly_refonly_preload_hook (aname, assemblies_path) : invoke_assembly_preload_hook (aname, assemblies_path);
2365 result->in_gac = FALSE;
2369 /* Currently we retrieve the loaded corlib for reflection
2370 * only requests, like a common reflection only assembly
2372 if (strcmp (aname->name, "mscorlib") == 0 || strcmp (aname->name, "mscorlib.dll") == 0) {
2373 return mono_assembly_load_corlib (mono_get_runtime_info (), status);
2376 len = strlen (aname->name);
2377 for (ext_index = 0; ext_index < 2; ext_index ++) {
2378 ext = ext_index == 0 ? ".dll" : ".exe";
2379 if (len > 4 && (!strcmp (aname->name + len - 4, ".dll") || !strcmp (aname->name + len - 4, ".exe"))) {
2380 filename = g_strdup (aname->name);
2381 /* Don't try appending .dll/.exe if it already has one of those extensions */
2384 filename = g_strconcat (aname->name, ext, NULL);
2387 result = mono_assembly_load_from_gac (aname, filename, status, refonly);
2394 fullpath = g_build_filename (basedir, filename, NULL);
2395 result = mono_assembly_open_full (fullpath, status, refonly);
2398 result->in_gac = FALSE;
2404 result = load_in_path (filename, default_path, status, refonly);
2406 result->in_gac = FALSE;
2416 * mono_assembly_load_full:
2417 * @aname: A MonoAssemblyName with the assembly name to load.
2418 * @basedir: A directory to look up the assembly at.
2419 * @status: a pointer to a MonoImageOpenStatus to return the status of the load operation
2420 * @refonly: Whether this assembly is being opened in "reflection-only" mode.
2422 * Loads the assembly referenced by @aname, if the value of @basedir is not NULL, it
2423 * attempts to load the assembly from that directory before probing the standard locations.
2425 * If the assembly is being opened in reflection-only mode (@refonly set to TRUE) then no
2426 * assembly binding takes place.
2428 * Returns: the assembly referenced by @aname loaded or NULL on error. On error the
2429 * value pointed by status is updated with an error code.
2432 mono_assembly_load_full (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status, gboolean refonly)
2434 MonoAssembly *result = mono_assembly_load_full_nosearch (aname, basedir, status, refonly);
2437 /* Try a postload search hook */
2438 result = mono_assembly_invoke_search_hook_internal (aname, refonly, TRUE);
2443 * mono_assembly_load:
2444 * @aname: A MonoAssemblyName with the assembly name to load.
2445 * @basedir: A directory to look up the assembly at.
2446 * @status: a pointer to a MonoImageOpenStatus to return the status of the load operation
2448 * Loads the assembly referenced by @aname, if the value of @basedir is not NULL, it
2449 * attempts to load the assembly from that directory before probing the standard locations.
2451 * Returns: the assembly referenced by @aname loaded or NULL on error. On error the
2452 * value pointed by status is updated with an error code.
2455 mono_assembly_load (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status)
2457 return mono_assembly_load_full (aname, basedir, status, FALSE);
2461 mono_assembly_loaded_full (MonoAssemblyName *aname, gboolean refonly)
2464 MonoAssemblyName maped_aname;
2466 aname = mono_assembly_remap_version (aname, &maped_aname);
2468 res = mono_assembly_invoke_search_hook_internal (aname, refonly, FALSE);
2474 * mono_assembly_loaded:
2475 * @aname: an assembly to look for.
2477 * Returns: NULL If the given @aname assembly has not been loaded, or a pointer to
2478 * a MonoAssembly that matches the MonoAssemblyName specified.
2481 mono_assembly_loaded (MonoAssemblyName *aname)
2483 return mono_assembly_loaded_full (aname, FALSE);
2487 * Returns whether mono_assembly_close_finish() must be called as
2488 * well. See comment for mono_image_close_except_pools() for why we
2489 * unload in two steps.
2492 mono_assembly_close_except_image_pools (MonoAssembly *assembly)
2495 g_return_val_if_fail (assembly != NULL, FALSE);
2497 if (assembly == REFERENCE_MISSING)
2500 /* Might be 0 already */
2501 if (InterlockedDecrement (&assembly->ref_count) > 0)
2504 mono_profiler_assembly_event (assembly, MONO_PROFILE_START_UNLOAD);
2506 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading assembly %s [%p].", assembly->aname.name, assembly);
2508 mono_debug_close_image (assembly->image);
2510 mono_assemblies_lock ();
2511 loaded_assemblies = g_list_remove (loaded_assemblies, assembly);
2512 mono_assemblies_unlock ();
2514 assembly->image->assembly = NULL;
2516 if (!mono_image_close_except_pools (assembly->image))
2517 assembly->image = NULL;
2519 for (tmp = assembly->friend_assembly_names; tmp; tmp = tmp->next) {
2520 MonoAssemblyName *fname = tmp->data;
2521 mono_assembly_name_free (fname);
2524 g_slist_free (assembly->friend_assembly_names);
2525 g_free (assembly->basedir);
2527 mono_profiler_assembly_event (assembly, MONO_PROFILE_END_UNLOAD);
2533 mono_assembly_close_finish (MonoAssembly *assembly)
2535 g_assert (assembly && assembly != REFERENCE_MISSING);
2537 if (assembly->image)
2538 mono_image_close_finish (assembly->image);
2540 if (assembly->dynamic) {
2541 g_free ((char*)assembly->aname.culture);
2548 * mono_assembly_close:
2549 * @assembly: the assembly to release.
2551 * This method releases a reference to the @assembly. The assembly is
2552 * only released when all the outstanding references to it are released.
2555 mono_assembly_close (MonoAssembly *assembly)
2557 if (mono_assembly_close_except_image_pools (assembly))
2558 mono_assembly_close_finish (assembly);
2562 mono_assembly_load_module (MonoAssembly *assembly, guint32 idx)
2564 return mono_image_load_file_for_image (assembly->image, idx);
2568 mono_assembly_foreach (GFunc func, gpointer user_data)
2573 * We make a copy of the list to avoid calling the callback inside the
2574 * lock, which could lead to deadlocks.
2576 mono_assemblies_lock ();
2577 copy = g_list_copy (loaded_assemblies);
2578 mono_assemblies_unlock ();
2580 g_list_foreach (loaded_assemblies, func, user_data);
2586 * mono_assemblies_cleanup:
2588 * Free all resources used by this module.
2591 mono_assemblies_cleanup (void)
2595 DeleteCriticalSection (&assemblies_mutex);
2597 for (l = loaded_assembly_bindings; l; l = l->next) {
2598 MonoAssemblyBindingInfo *info = l->data;
2600 mono_assembly_binding_info_free (info);
2603 g_slist_free (loaded_assembly_bindings);
2605 free_assembly_load_hooks ();
2606 free_assembly_search_hooks ();
2607 free_assembly_preload_hooks ();
2611 * Holds the assembly of the application, for
2612 * System.Diagnostics.Process::MainModule
2614 static MonoAssembly *main_assembly=NULL;
2617 mono_assembly_set_main (MonoAssembly *assembly)
2619 main_assembly = assembly;
2623 * mono_assembly_get_main:
2625 * Returns: the assembly for the application, the first assembly that is loaded by the VM
2628 mono_assembly_get_main (void)
2630 return (main_assembly);
2634 * mono_assembly_get_image:
2635 * @assembly: The assembly to retrieve the image from
2637 * Returns: the MonoImage associated with this assembly.
2640 mono_assembly_get_image (MonoAssembly *assembly)
2642 return assembly->image;
2646 mono_register_bundled_assemblies (const MonoBundledAssembly **assemblies)
2648 bundles = assemblies;
2651 #define MONO_DECLSEC_FORMAT_10 0x3C
2652 #define MONO_DECLSEC_FORMAT_20 0x2E
2653 #define MONO_DECLSEC_FIELD 0x53
2654 #define MONO_DECLSEC_PROPERTY 0x54
2656 #define SKIP_VISIBILITY_XML_ATTRIBUTE ("\"SkipVerification\"")
2657 #define SKIP_VISIBILITY_ATTRIBUTE_NAME ("System.Security.Permissions.SecurityPermissionAttribute")
2658 #define SKIP_VISIBILITY_ATTRIBUTE_SIZE (sizeof (SKIP_VISIBILITY_ATTRIBUTE_NAME) - 1)
2659 #define SKIP_VISIBILITY_PROPERTY_NAME ("SkipVerification")
2660 #define SKIP_VISIBILITY_PROPERTY_SIZE (sizeof (SKIP_VISIBILITY_PROPERTY_NAME) - 1)
2663 mono_assembly_try_decode_skip_verification_param (const char *p, const char **resp, gboolean *abort_decoding)
2667 case MONO_DECLSEC_PROPERTY:
2669 case MONO_DECLSEC_FIELD:
2671 *abort_decoding = TRUE;
2676 if (*p++ != MONO_TYPE_BOOLEAN) {
2677 *abort_decoding = TRUE;
2681 /* property name length */
2682 len = mono_metadata_decode_value (p, &p);
2684 if (len >= SKIP_VISIBILITY_PROPERTY_SIZE && !memcmp (p, SKIP_VISIBILITY_PROPERTY_NAME, SKIP_VISIBILITY_PROPERTY_SIZE)) {
2695 mono_assembly_try_decode_skip_verification (const char *p, const char *endn)
2697 int i, j, num, len, params_len;
2699 if (*p == MONO_DECLSEC_FORMAT_10) {
2700 gsize read, written;
2701 char *res = g_convert (p, endn - p, "UTF-8", "UTF-16LE", &read, &written, NULL);
2703 gboolean found = strstr (res, SKIP_VISIBILITY_XML_ATTRIBUTE) != NULL;
2709 if (*p++ != MONO_DECLSEC_FORMAT_20)
2712 /* number of encoded permission attributes */
2713 num = mono_metadata_decode_value (p, &p);
2714 for (i = 0; i < num; ++i) {
2715 gboolean is_valid = FALSE;
2716 gboolean abort_decoding = FALSE;
2718 /* attribute name length */
2719 len = mono_metadata_decode_value (p, &p);
2721 /* We don't really need to fully decode the type. Comparing the name is enough */
2722 is_valid = len >= SKIP_VISIBILITY_ATTRIBUTE_SIZE && !memcmp (p, SKIP_VISIBILITY_ATTRIBUTE_NAME, SKIP_VISIBILITY_ATTRIBUTE_SIZE);
2726 /*size of the params table*/
2727 params_len = mono_metadata_decode_value (p, &p);
2729 const char *params_end = p + params_len;
2731 /* number of parameters */
2732 len = mono_metadata_decode_value (p, &p);
2734 for (j = 0; j < len; ++j) {
2735 if (mono_assembly_try_decode_skip_verification_param (p, &p, &abort_decoding))
2751 mono_assembly_has_skip_verification (MonoAssembly *assembly)
2754 guint32 cols [MONO_DECL_SECURITY_SIZE];
2758 if (MONO_SECMAN_FLAG_INIT (assembly->skipverification))
2759 return MONO_SECMAN_FLAG_GET_VALUE (assembly->skipverification);
2761 t = &assembly->image->tables [MONO_TABLE_DECLSECURITY];
2763 for (i = 0; i < t->rows; ++i) {
2764 mono_metadata_decode_row (t, i, cols, MONO_DECL_SECURITY_SIZE);
2765 if ((cols [MONO_DECL_SECURITY_PARENT] & MONO_HAS_DECL_SECURITY_MASK) != MONO_HAS_DECL_SECURITY_ASSEMBLY)
2767 if (cols [MONO_DECL_SECURITY_ACTION] != SECURITY_ACTION_REQMIN)
2770 blob = mono_metadata_blob_heap (assembly->image, cols [MONO_DECL_SECURITY_PERMISSIONSET]);
2771 len = mono_metadata_decode_blob_size (blob, &blob);
2775 if (mono_assembly_try_decode_skip_verification (blob, blob + len)) {
2776 MONO_SECMAN_FLAG_SET_VALUE (assembly->skipverification, TRUE);
2781 MONO_SECMAN_FLAG_SET_VALUE (assembly->skipverification, FALSE);