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>
35 #ifndef PLATFORM_WIN32
36 #include <sys/types.h>
41 /* AssemblyVersionMap: an assembly name and the assembly version set on which it is based */
43 const char* assembly_name;
44 guint8 version_set_index;
47 /* the default search path is empty, the first slot is replaced with the computed value */
54 /* Contains the list of directories to be searched for assemblies (MONO_PATH) */
55 static char **assemblies_path = NULL;
57 /* Contains the list of directories that point to auxiliary GACs */
58 static char **extra_gac_paths = NULL;
60 /* The list of system assemblies what will be remapped to the running
61 * runtime version. WARNING: this list must be sorted.
63 static const AssemblyVersionMap framework_assemblies [] = {
65 {"Commons.Xml.Relaxng", 0},
72 {"Microsoft.VisualBasic", 1},
73 {"Microsoft.VisualC", 1},
75 {"Mono.CompilerServices.SymbolWriter", 0},
77 {"Mono.Data.SybaseClient", 0},
79 {"Mono.Data.TdsClient", 0},
80 {"Mono.GetOptions", 0},
84 {"Mono.Security.Win32", 0},
86 {"Novell.Directory.Ldap", 0},
90 {"System.Configuration.Install", 0},
92 {"System.Data.OracleClient", 0},
93 {"System.Data.SqlXml", 0},
95 {"System.DirectoryServices", 0},
96 {"System.Drawing", 0},
97 {"System.Drawing.Design", 0},
98 {"System.EnterpriseServices", 0},
99 {"System.Management", 0},
100 {"System.Messaging", 0},
101 {"System.Runtime.Remoting", 0},
102 {"System.Runtime.Serialization.Formatters.Soap", 0},
103 {"System.Security", 0},
104 {"System.ServiceProcess", 0},
106 {"System.Web.Mobile", 0},
107 {"System.Web.Services", 0},
108 {"System.Windows.Forms", 0},
114 * keeps track of loaded assemblies
116 static GList *loaded_assemblies = NULL;
117 static MonoAssembly *corlib;
119 /* This protects loaded_assemblies and image->references */
120 #define mono_assemblies_lock() EnterCriticalSection (&assemblies_mutex)
121 #define mono_assemblies_unlock() LeaveCriticalSection (&assemblies_mutex)
122 static CRITICAL_SECTION assemblies_mutex;
124 /* If defined, points to the bundled assembly information */
125 const MonoBundledAssembly **bundles;
127 /* Loaded assembly binding info */
128 static GSList *loaded_assembly_bindings = NULL;
131 mono_assembly_invoke_search_hook_internal (MonoAssemblyName *aname, gboolean refonly, gboolean postload);
133 mono_assembly_is_in_gac (const gchar *filanem);
136 encode_public_tok (const guchar *token, gint32 len)
138 const static gchar allowed [] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
142 res = g_malloc (len * 2 + 1);
143 for (i = 0; i < len; i++) {
144 res [i * 2] = allowed [token [i] >> 4];
145 res [i * 2 + 1] = allowed [token [i] & 0xF];
152 * mono_public_tokens_are_equal:
153 * @pubt1: first public key token
154 * @pubt2: second public key token
156 * Compare two public key tokens and return #TRUE is they are equal and #FALSE
160 mono_public_tokens_are_equal (const unsigned char *pubt1, const unsigned char *pubt2)
162 return g_strcasecmp ((char*)pubt1, (char*)pubt2) == 0;
166 check_path_env (void)
169 char **splitted, **dest;
171 path = g_getenv ("MONO_PATH");
175 splitted = g_strsplit (path, G_SEARCHPATH_SEPARATOR_S, 1000);
177 g_strfreev (assemblies_path);
178 assemblies_path = dest = splitted;
186 if (g_getenv ("MONO_DEBUG") == NULL)
190 if (**splitted && !g_file_test (*splitted, G_FILE_TEST_IS_DIR))
191 g_warning ("'%s' in MONO_PATH doesn't exist or has wrong permissions.", *splitted);
198 check_extra_gac_path_env (void) {
200 char **splitted, **dest;
202 path = g_getenv ("MONO_GAC_PREFIX");
206 splitted = g_strsplit (path, G_SEARCHPATH_SEPARATOR_S, 1000);
208 g_strfreev (extra_gac_paths);
209 extra_gac_paths = dest = splitted;
217 if (g_getenv ("MONO_DEBUG") == NULL)
221 if (**splitted && !g_file_test (*splitted, G_FILE_TEST_IS_DIR))
222 g_warning ("'%s' in MONO_GAC_PREFIX doesn't exist or has wrong permissions.", *splitted);
229 assembly_binding_maps_name (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname)
231 if (strcmp (info->name, aname->name))
234 if (info->major != aname->major || info->minor != aname->minor)
237 if ((info->culture != NULL) != (aname->culture != NULL))
240 if (info->culture && strcmp (info->culture, aname->culture))
243 if (!mono_public_tokens_are_equal (info->public_key_token, aname->public_key_token))
250 mono_assembly_binding_info_free (MonoAssemblyBindingInfo *info)
253 g_free (info->culture);
257 get_publisher_policy_info (MonoImage *image, MonoAssemblyName *aname, MonoAssemblyBindingInfo *binding_info)
260 guint32 cols [MONO_MANIFEST_SIZE];
261 const gchar *filename;
262 gchar *subpath, *fullpath;
264 t = &image->tables [MONO_TABLE_MANIFESTRESOURCE];
265 /* MS Impl. accepts policy assemblies with more than
266 * one manifest resource, and only takes the first one */
268 binding_info->is_valid = FALSE;
272 mono_metadata_decode_row (t, 0, cols, MONO_MANIFEST_SIZE);
273 if ((cols [MONO_MANIFEST_IMPLEMENTATION] & MONO_IMPLEMENTATION_MASK) != MONO_IMPLEMENTATION_FILE) {
274 binding_info->is_valid = FALSE;
278 filename = mono_metadata_string_heap (image, cols [MONO_MANIFEST_NAME]);
279 g_assert (filename != NULL);
281 subpath = g_path_get_dirname (image->name);
282 fullpath = g_build_path (G_DIR_SEPARATOR_S, subpath, filename, NULL);
283 mono_config_parse_publisher_policy (fullpath, binding_info);
287 /* Define the optional elements/attributes before checking */
288 if (!binding_info->culture)
289 binding_info->culture = g_strdup ("");
291 /* Check that the most important elements/attributes exist */
292 if (!binding_info->name || !binding_info->public_key_token [0] || !binding_info->has_old_version_bottom ||
293 !binding_info->has_new_version || !assembly_binding_maps_name (binding_info, aname)) {
294 mono_assembly_binding_info_free (binding_info);
295 binding_info->is_valid = FALSE;
299 binding_info->is_valid = TRUE;
303 compare_versions (AssemblyVersionSet *v, MonoAssemblyName *aname)
305 if (v->major > aname->major)
307 else if (v->major < aname->major)
310 if (v->minor > aname->minor)
312 else if (v->minor < aname->minor)
315 if (v->build > aname->build)
317 else if (v->build < aname->build)
320 if (v->revision > aname->revision)
322 else if (v->revision < aname->revision)
329 check_policy_versions (MonoAssemblyBindingInfo *info, MonoAssemblyName *name)
334 /* If has_old_version_top doesn't exist, we don't have an interval */
335 if (!info->has_old_version_top) {
336 if (compare_versions (&info->old_version_bottom, name) == 0)
342 /* Check that the version defined by name is valid for the interval */
343 if (compare_versions (&info->old_version_top, name) < 0)
346 /* We should be greater or equal than the small version */
347 if (compare_versions (&info->old_version_bottom, name) > 0)
354 * mono_assembly_names_equal:
356 * @r: second assembly.
358 * Compares two MonoAssemblyNames and returns whether they are equal.
360 * This compares the names, the cultures, the release version and their
363 * Returns: TRUE if both assembly names are equal.
366 mono_assembly_names_equal (MonoAssemblyName *l, MonoAssemblyName *r)
368 if (!l->name || !r->name)
371 if (strcmp (l->name, r->name))
374 if (l->culture && r->culture && strcmp (l->culture, r->culture))
377 if (l->major != r->major || l->minor != r->minor ||
378 l->build != r->build || l->revision != r->revision)
379 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)))
382 if (!l->public_key_token [0] || !r->public_key_token [0])
385 if (!mono_public_tokens_are_equal (l->public_key_token, r->public_key_token))
391 static MonoAssembly *
392 load_in_path (const char *basename, const char** search_path, MonoImageOpenStatus *status, MonoBoolean refonly)
396 MonoAssembly *result;
398 for (i = 0; search_path [i]; ++i) {
399 fullpath = g_build_filename (search_path [i], basename, NULL);
400 result = mono_assembly_open_full (fullpath, status, refonly);
409 * mono_assembly_setrootdir:
410 * @root_dir: The pathname of the root directory where we will locate assemblies
412 * This routine sets the internal default root directory for looking up
415 * This is used by Windows installations to compute dynamically the
416 * place where the Mono assemblies are located.
420 mono_assembly_setrootdir (const char *root_dir)
423 * Override the MONO_ASSEMBLIES directory configured at compile time.
425 /* Leak if called more than once */
426 default_path [0] = g_strdup (root_dir);
430 * mono_assembly_getrootdir:
432 * Obtains the root directory used for looking up assemblies.
434 * Returns: a string with the directory, this string should not be freed.
436 G_CONST_RETURN gchar *
437 mono_assembly_getrootdir (void)
439 return default_path [0];
444 * @assembly_dir: the base directory for assemblies
445 * @config_dir: the base directory for configuration files
447 * This routine is used internally and by developers embedding
448 * the runtime into their own applications.
450 * There are a number of cases to consider: Mono as a system-installed
451 * package that is available on the location preconfigured or Mono in
452 * a relocated location.
454 * If you are using a system-installed Mono, you can pass NULL
455 * to both parameters. If you are not, you should compute both
456 * directory values and call this routine.
458 * The values for a given PREFIX are:
460 * assembly_dir: PREFIX/lib
461 * config_dir: PREFIX/etc
463 * Notice that embedders that use Mono in a relocated way must
464 * compute the location at runtime, as they will be in control
465 * of where Mono is installed.
468 mono_set_dirs (const char *assembly_dir, const char *config_dir)
470 #if defined (MONO_ASSEMBLIES)
471 if (assembly_dir == NULL)
472 assembly_dir = MONO_ASSEMBLIES;
474 #if defined (MONO_CFG_DIR)
475 if (config_dir == NULL)
476 config_dir = MONO_CFG_DIR;
478 mono_assembly_setrootdir (assembly_dir);
479 mono_set_config_dir (config_dir);
482 #ifndef PLATFORM_WIN32
485 compute_base (char *path)
487 char *p = strrchr (path, '/');
491 /* Not a well known Mono executable, we are embedded, cant guess the base */
492 if (strcmp (p, "/mono") && strcmp (p, "/monodis") && strcmp (p, "/mint") && strcmp (p, "/monodiet"))
496 p = strrchr (path, '/');
500 if (strcmp (p, "/bin") != 0)
509 mono_set_dirs (MONO_ASSEMBLIES, MONO_CFG_DIR);
516 char *config, *lib, *mono;
520 * Only /usr prefix is treated specially
522 if (strncmp (exe, MONO_BINDIR, strlen (MONO_BINDIR)) == 0 || (base = compute_base (exe)) == NULL){
527 config = g_build_filename (base, "etc", NULL);
528 lib = g_build_filename (base, "lib", NULL);
529 mono = g_build_filename (lib, "mono/1.0", NULL);
530 if (stat (mono, &buf) == -1)
533 mono_set_dirs (lib, config);
541 #endif /* PLATFORM_WIN32 */
546 * Registers the root directory for the Mono runtime, for Linux and Solaris 10,
547 * this auto-detects the prefix where Mono was installed.
550 mono_set_rootdir (void)
552 #ifdef PLATFORM_WIN32
553 gchar *bindir, *installdir, *root, *name, *config;
555 name = mono_get_module_file_name ((HMODULE) &__ImageBase);
556 bindir = g_path_get_dirname (name);
557 installdir = g_path_get_dirname (bindir);
558 root = g_build_path (G_DIR_SEPARATOR_S, installdir, "lib", NULL);
560 config = g_build_filename (root, "..", "etc", NULL);
561 mono_set_dirs (root, config);
568 #elif defined(DISABLE_MONO_AUTODETECTION)
576 s = readlink ("/proc/self/exe", buf, sizeof (buf)-1);
584 /* Solaris 10 style */
585 str = g_strdup_printf ("/proc/%d/path/a.out", getpid ());
586 s = readlink (str, buf, sizeof (buf)-1);
598 * mono_assemblies_init:
600 * Initialize global variables used by this module.
603 mono_assemblies_init (void)
606 * Initialize our internal paths if we have not been initialized yet.
607 * This happens when embedders use Mono.
609 if (mono_assembly_getrootdir () == NULL)
613 check_extra_gac_path_env ();
615 InitializeCriticalSection (&assemblies_mutex);
619 mono_assembly_fill_assembly_name (MonoImage *image, MonoAssemblyName *aname)
621 MonoTableInfo *t = &image->tables [MONO_TABLE_ASSEMBLY];
622 guint32 cols [MONO_ASSEMBLY_SIZE];
627 mono_metadata_decode_row (t, 0, cols, MONO_ASSEMBLY_SIZE);
630 aname->hash_value = NULL;
631 aname->name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLY_NAME]);
632 aname->culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLY_CULTURE]);
633 aname->flags = cols [MONO_ASSEMBLY_FLAGS];
634 aname->major = cols [MONO_ASSEMBLY_MAJOR_VERSION];
635 aname->minor = cols [MONO_ASSEMBLY_MINOR_VERSION];
636 aname->build = cols [MONO_ASSEMBLY_BUILD_NUMBER];
637 aname->revision = cols [MONO_ASSEMBLY_REV_NUMBER];
638 aname->hash_alg = cols [MONO_ASSEMBLY_HASH_ALG];
639 if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
640 guchar* token = g_malloc (8);
645 pkey = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
646 len = mono_metadata_decode_blob_size (pkey, &pkey);
647 aname->public_key = (guchar*)pkey;
649 mono_digest_get_public_token (token, aname->public_key, len);
650 encoded = encode_public_tok (token, 8);
651 g_strlcpy ((char*)aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
657 aname->public_key = NULL;
658 memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
661 if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
662 aname->public_key = (guchar*)mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
665 aname->public_key = 0;
671 * mono_stringify_assembly_name:
672 * @aname: the assembly name.
674 * Convert @aname into its string format. The returned string is dynamically
675 * allocated and should be freed by the caller.
677 * Returns: a newly allocated string with a string representation of
681 mono_stringify_assembly_name (MonoAssemblyName *aname)
683 return g_strdup_printf (
684 "%s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
686 aname->major, aname->minor, aname->build, aname->revision,
687 aname->culture && *aname->culture? aname->culture: "neutral",
688 aname->public_key_token [0] ? (char *)aname->public_key_token : "null",
689 (aname->flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
693 assemblyref_public_tok (MonoImage *image, guint32 key_index, guint32 flags)
695 const gchar *public_tok;
698 public_tok = mono_metadata_blob_heap (image, key_index);
699 len = mono_metadata_decode_blob_size (public_tok, &public_tok);
701 if (flags & ASSEMBLYREF_FULL_PUBLIC_KEY_FLAG) {
703 mono_digest_get_public_token (token, (guchar*)public_tok, len);
704 return encode_public_tok (token, 8);
707 return encode_public_tok ((guchar*)public_tok, len);
711 * mono_assembly_addref:
712 * @assemnly: the assembly to reference
714 * This routine increments the reference count on a MonoAssembly.
715 * The reference count is reduced every time the method mono_assembly_close() is
719 mono_assembly_addref (MonoAssembly *assembly)
721 InterlockedIncrement (&assembly->ref_count);
724 static MonoAssemblyName *
725 mono_assembly_remap_version (MonoAssemblyName *aname, MonoAssemblyName *dest_aname)
727 const MonoRuntimeInfo *current_runtime;
728 int pos, first, last;
730 if (aname->name == NULL) return aname;
731 current_runtime = mono_get_runtime_info ();
734 last = G_N_ELEMENTS (framework_assemblies) - 1;
736 while (first <= last) {
738 pos = first + (last - first) / 2;
739 res = strcmp (aname->name, framework_assemblies[pos].assembly_name);
741 const AssemblyVersionSet* vset;
742 int index = framework_assemblies[pos].version_set_index;
743 g_assert (index < G_N_ELEMENTS (current_runtime->version_sets));
744 vset = ¤t_runtime->version_sets [index];
746 if (aname->major == vset->major && aname->minor == vset->minor &&
747 aname->build == vset->build && aname->revision == vset->revision)
750 if ((aname->major | aname->minor | aname->build | aname->revision) != 0)
751 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_ASSEMBLY,
752 "The request to load the assembly %s v%d.%d.%d.%d was remapped to v%d.%d.%d.%d",
754 aname->major, aname->minor, aname->build, aname->revision,
755 vset->major, vset->minor, vset->build, vset->revision
758 memcpy (dest_aname, aname, sizeof(MonoAssemblyName));
759 dest_aname->major = vset->major;
760 dest_aname->minor = vset->minor;
761 dest_aname->build = vset->build;
762 dest_aname->revision = vset->revision;
764 } else if (res < 0) {
774 * mono_assembly_get_assemblyref:
776 * Fill out ANAME with the assembly name of the INDEXth assembly reference in IMAGE.
779 mono_assembly_get_assemblyref (MonoImage *image, int index, MonoAssemblyName *aname)
782 guint32 cols [MONO_ASSEMBLYREF_SIZE];
785 t = &image->tables [MONO_TABLE_ASSEMBLYREF];
787 mono_metadata_decode_row (t, index, cols, MONO_ASSEMBLYREF_SIZE);
789 hash = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLYREF_HASH_VALUE]);
790 aname->hash_len = mono_metadata_decode_blob_size (hash, &hash);
791 aname->hash_value = hash;
792 aname->name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_NAME]);
793 aname->culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_CULTURE]);
794 aname->flags = cols [MONO_ASSEMBLYREF_FLAGS];
795 aname->major = cols [MONO_ASSEMBLYREF_MAJOR_VERSION];
796 aname->minor = cols [MONO_ASSEMBLYREF_MINOR_VERSION];
797 aname->build = cols [MONO_ASSEMBLYREF_BUILD_NUMBER];
798 aname->revision = cols [MONO_ASSEMBLYREF_REV_NUMBER];
800 if (cols [MONO_ASSEMBLYREF_PUBLIC_KEY]) {
801 gchar *token = assemblyref_public_tok (image, cols [MONO_ASSEMBLYREF_PUBLIC_KEY], aname->flags);
802 g_strlcpy ((char*)aname->public_key_token, token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
805 memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
810 mono_assembly_load_reference (MonoImage *image, int index)
812 MonoAssembly *reference;
813 MonoAssemblyName aname;
814 MonoImageOpenStatus status;
817 * image->references is shared between threads, so we need to access
818 * it inside a critical section.
820 mono_assemblies_lock ();
821 if (!image->references) {
822 MonoTableInfo *t = &image->tables [MONO_TABLE_ASSEMBLYREF];
824 image->references = g_new0 (MonoAssembly *, t->rows + 1);
826 reference = image->references [index];
827 mono_assemblies_unlock ();
831 mono_assembly_get_assemblyref (image, index, &aname);
833 if (image->assembly && image->assembly->ref_only) {
834 /* We use the loaded corlib */
835 if (!strcmp (aname.name, "mscorlib"))
836 reference = mono_assembly_load_full (&aname, image->assembly->basedir, &status, FALSE);
838 reference = mono_assembly_loaded_full (&aname, TRUE);
840 /* Try a postload search hook */
841 reference = mono_assembly_invoke_search_hook_internal (&aname, TRUE, TRUE);
845 * Here we must advice that the error was due to
846 * a non loaded reference using the ReflectionOnly api
849 reference = REFERENCE_MISSING;
851 reference = mono_assembly_load (&aname, image->assembly? image->assembly->basedir: NULL, &status);
853 if (reference == NULL){
854 char *extra_msg = g_strdup ("");
856 if (status == MONO_IMAGE_ERROR_ERRNO && errno == ENOENT) {
857 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 : "" );
858 } else if (status == MONO_IMAGE_ERROR_ERRNO) {
859 extra_msg = g_strdup_printf ("System error: %s\n", strerror (errno));
860 } else if (status == MONO_IMAGE_MISSING_ASSEMBLYREF) {
861 extra_msg = g_strdup ("Cannot find an assembly referenced from this one.\n");
862 } else if (status == MONO_IMAGE_IMAGE_INVALID) {
863 extra_msg = g_strdup ("The file exists but is not a valid assembly.\n");
866 g_warning ("The following assembly referenced from %s could not be loaded:\n"
867 " Assembly: %s (assemblyref_index=%d)\n"
868 " Version: %d.%d.%d.%d\n"
869 " Public Key: %s\n%s",
870 image->name, aname.name, index,
871 aname.major, aname.minor, aname.build, aname.revision,
872 strlen ((char*)aname.public_key_token) == 0 ? "(none)" : (char*)aname.public_key_token, extra_msg);
876 mono_assemblies_lock ();
877 if (reference == NULL) {
878 /* Flag as not found */
879 reference = REFERENCE_MISSING;
882 if (!image->references [index]) {
883 if (reference != REFERENCE_MISSING){
884 mono_assembly_addref (reference);
886 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly Ref addref %s %p -> %s %p: %d\n",
887 image->assembly->aname.name, image->assembly, reference->aname.name, reference, reference->ref_count);
890 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Failed to load assembly %s %p\n",
891 image->assembly->aname.name, image->assembly);
894 image->references [index] = reference;
896 mono_assemblies_unlock ();
898 if (image->references [index] != reference) {
899 /* Somebody loaded it before us */
900 mono_assembly_close (reference);
905 mono_assembly_load_references (MonoImage *image, MonoImageOpenStatus *status)
907 /* This is a no-op now but it is part of the embedding API so we can't remove it */
908 *status = MONO_IMAGE_OK;
911 typedef struct AssemblyLoadHook AssemblyLoadHook;
912 struct AssemblyLoadHook {
913 AssemblyLoadHook *next;
914 MonoAssemblyLoadFunc func;
918 AssemblyLoadHook *assembly_load_hook = NULL;
921 mono_assembly_invoke_load_hook (MonoAssembly *ass)
923 AssemblyLoadHook *hook;
925 for (hook = assembly_load_hook; hook; hook = hook->next) {
926 hook->func (ass, hook->user_data);
931 mono_install_assembly_load_hook (MonoAssemblyLoadFunc func, gpointer user_data)
933 AssemblyLoadHook *hook;
935 g_return_if_fail (func != NULL);
937 hook = g_new0 (AssemblyLoadHook, 1);
939 hook->user_data = user_data;
940 hook->next = assembly_load_hook;
941 assembly_load_hook = hook;
945 free_assembly_load_hooks (void)
947 AssemblyLoadHook *hook, *next;
949 for (hook = assembly_load_hook; hook; hook = next) {
955 typedef struct AssemblySearchHook AssemblySearchHook;
956 struct AssemblySearchHook {
957 AssemblySearchHook *next;
958 MonoAssemblySearchFunc func;
964 AssemblySearchHook *assembly_search_hook = NULL;
967 mono_assembly_invoke_search_hook_internal (MonoAssemblyName *aname, gboolean refonly, gboolean postload)
969 AssemblySearchHook *hook;
971 for (hook = assembly_search_hook; hook; hook = hook->next) {
972 if ((hook->refonly == refonly) && (hook->postload == postload)) {
973 MonoAssembly *ass = hook->func (aname, hook->user_data);
983 mono_assembly_invoke_search_hook (MonoAssemblyName *aname)
985 return mono_assembly_invoke_search_hook_internal (aname, FALSE, FALSE);
989 mono_install_assembly_search_hook_internal (MonoAssemblySearchFunc func, gpointer user_data, gboolean refonly, gboolean postload)
991 AssemblySearchHook *hook;
993 g_return_if_fail (func != NULL);
995 hook = g_new0 (AssemblySearchHook, 1);
997 hook->user_data = user_data;
998 hook->refonly = refonly;
999 hook->postload = postload;
1000 hook->next = assembly_search_hook;
1001 assembly_search_hook = hook;
1005 mono_install_assembly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1007 mono_install_assembly_search_hook_internal (func, user_data, FALSE, FALSE);
1011 free_assembly_search_hooks (void)
1013 AssemblySearchHook *hook, *next;
1015 for (hook = assembly_search_hook; hook; hook = next) {
1022 mono_install_assembly_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1024 mono_install_assembly_search_hook_internal (func, user_data, TRUE, FALSE);
1028 mono_install_assembly_postload_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1030 mono_install_assembly_search_hook_internal (func, user_data, FALSE, TRUE);
1034 mono_install_assembly_postload_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1036 mono_install_assembly_search_hook_internal (func, user_data, TRUE, TRUE);
1039 typedef struct AssemblyPreLoadHook AssemblyPreLoadHook;
1040 struct AssemblyPreLoadHook {
1041 AssemblyPreLoadHook *next;
1042 MonoAssemblyPreLoadFunc func;
1046 static AssemblyPreLoadHook *assembly_preload_hook = NULL;
1047 static AssemblyPreLoadHook *assembly_refonly_preload_hook = NULL;
1049 static MonoAssembly *
1050 invoke_assembly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
1052 AssemblyPreLoadHook *hook;
1053 MonoAssembly *assembly;
1055 for (hook = assembly_preload_hook; hook; hook = hook->next) {
1056 assembly = hook->func (aname, assemblies_path, hook->user_data);
1057 if (assembly != NULL)
1064 static MonoAssembly *
1065 invoke_assembly_refonly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
1067 AssemblyPreLoadHook *hook;
1068 MonoAssembly *assembly;
1070 for (hook = assembly_refonly_preload_hook; hook; hook = hook->next) {
1071 assembly = hook->func (aname, assemblies_path, hook->user_data);
1072 if (assembly != NULL)
1080 mono_install_assembly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
1082 AssemblyPreLoadHook *hook;
1084 g_return_if_fail (func != NULL);
1086 hook = g_new0 (AssemblyPreLoadHook, 1);
1088 hook->user_data = user_data;
1089 hook->next = assembly_preload_hook;
1090 assembly_preload_hook = hook;
1094 mono_install_assembly_refonly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
1096 AssemblyPreLoadHook *hook;
1098 g_return_if_fail (func != NULL);
1100 hook = g_new0 (AssemblyPreLoadHook, 1);
1102 hook->user_data = user_data;
1103 hook->next = assembly_refonly_preload_hook;
1104 assembly_refonly_preload_hook = hook;
1108 free_assembly_preload_hooks (void)
1110 AssemblyPreLoadHook *hook, *next;
1112 for (hook = assembly_preload_hook; hook; hook = next) {
1117 for (hook = assembly_refonly_preload_hook; hook; hook = next) {
1124 absolute_dir (const gchar *filename)
1135 if (g_path_is_absolute (filename)) {
1136 part = g_path_get_dirname (filename);
1137 res = g_strconcat (part, G_DIR_SEPARATOR_S, NULL);
1142 cwd = g_get_current_dir ();
1143 mixed = g_build_filename (cwd, filename, NULL);
1144 parts = g_strsplit (mixed, G_DIR_SEPARATOR_S, 0);
1149 for (i = 0; (part = parts [i]) != NULL; i++) {
1150 if (!strcmp (part, "."))
1153 if (!strcmp (part, "..")) {
1154 if (list && list->next) /* Don't remove root */
1155 list = g_list_delete_link (list, list);
1157 list = g_list_prepend (list, part);
1161 result = g_string_new ("");
1162 list = g_list_reverse (list);
1164 /* Ignores last data pointer, which should be the filename */
1165 for (tmp = list; tmp && tmp->next != NULL; tmp = tmp->next){
1167 g_string_append_printf (result, "%s%c", (char *) tmp->data,
1172 g_string_free (result, FALSE);
1177 return g_strdup (".");
1184 * mono_assembly_open_from_bundle:
1185 * @filename: Filename requested
1186 * @status: return value
1188 * This routine tries to open the assembly specified by `filename' from the
1189 * defined bundles, if found, returns the MonoImage for it, if not found
1193 mono_assembly_open_from_bundle (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
1197 MonoImage *image = NULL;
1200 * we do a very simple search for bundled assemblies: it's not a general
1201 * purpose assembly loading mechanism.
1207 name = g_path_get_basename (filename);
1209 mono_assemblies_lock ();
1210 for (i = 0; !image && bundles [i]; ++i) {
1211 if (strcmp (bundles [i]->name, name) == 0) {
1212 image = mono_image_open_from_data_full ((char*)bundles [i]->data, bundles [i]->size, FALSE, status, refonly);
1216 mono_assemblies_unlock ();
1219 mono_image_addref (image);
1226 mono_assembly_open_full (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
1230 MonoImageOpenStatus def_status;
1234 g_return_val_if_fail (filename != NULL, NULL);
1237 status = &def_status;
1238 *status = MONO_IMAGE_OK;
1240 if (strncmp (filename, "file://", 7) == 0) {
1241 GError *error = NULL;
1242 gchar *uri = (gchar *) filename;
1246 * MS allows file://c:/... and fails on file://localhost/c:/...
1247 * They also throw an IndexOutOfRangeException if "file://"
1250 uri = g_strdup_printf ("file:///%s", uri + 7);
1253 uri = mono_escape_uri_string (tmpuri);
1254 fname = g_filename_from_uri (uri, NULL, &error);
1257 if (tmpuri != filename)
1260 if (error != NULL) {
1261 g_warning ("%s\n", error->message);
1262 g_error_free (error);
1263 fname = g_strdup (filename);
1266 fname = g_strdup (filename);
1269 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1270 "Assembly Loader probing location: '%s'.", fname);
1273 if (!mono_assembly_is_in_gac (fname))
1274 new_fname = mono_make_shadow_copy (fname);
1275 if (new_fname && new_fname != fname) {
1278 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1279 "Assembly Loader shadow-copied assembly to: '%s'.", fname);
1284 if (bundles != NULL)
1285 image = mono_assembly_open_from_bundle (fname, status, refonly);
1288 image = mono_image_open_full (fname, status, refonly);
1291 if (*status == MONO_IMAGE_OK)
1292 *status = MONO_IMAGE_ERROR_ERRNO;
1297 if (image->assembly) {
1298 /* Already loaded by another appdomain */
1299 mono_assembly_invoke_load_hook (image->assembly);
1300 mono_image_close (image);
1302 return image->assembly;
1305 ass = mono_assembly_load_from_full (image, fname, status, refonly);
1308 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1309 "Assembly Loader loaded assembly from location: '%s'.", filename);
1311 mono_config_for_assembly (ass->image);
1314 /* Clear the reference added by mono_image_open */
1315 mono_image_close (image);
1323 free_item (gpointer val, gpointer user_data)
1329 * mono_assembly_load_friends:
1332 * Load the list of friend assemblies that are allowed to access
1333 * the assembly's internal types and members. They are stored as assembly
1334 * names in custom attributes.
1336 * This is an internal method, we need this because when we load mscorlib
1337 * we do not have the mono_defaults.internals_visible_class loaded yet,
1338 * so we need to load these after we initialize the runtime.
1340 * LOCKING: Acquires the assemblies lock plus the loader lock.
1343 mono_assembly_load_friends (MonoAssembly* ass)
1346 MonoCustomAttrInfo* attrs;
1349 if (ass->friend_assembly_names_inited)
1352 attrs = mono_custom_attrs_from_assembly (ass);
1354 mono_assemblies_lock ();
1355 ass->friend_assembly_names_inited = TRUE;
1356 mono_assemblies_unlock ();
1360 mono_assemblies_lock ();
1361 if (ass->friend_assembly_names_inited) {
1362 mono_assemblies_unlock ();
1365 mono_assemblies_unlock ();
1369 * We build the list outside the assemblies lock, the worse that can happen
1370 * is that we'll need to free the allocated list.
1372 for (i = 0; i < attrs->num_attrs; ++i) {
1373 MonoCustomAttrEntry *attr = &attrs->attrs [i];
1374 MonoAssemblyName *aname;
1377 /* Do some sanity checking */
1378 if (!attr->ctor || attr->ctor->klass != mono_defaults.internals_visible_class)
1380 if (attr->data_size < 4)
1382 data = (const char*)attr->data;
1383 /* 0xFF means null string, see custom attr format */
1384 if (data [0] != 1 || data [1] != 0 || (data [2] & 0xFF) == 0xFF)
1386 slen = mono_metadata_decode_value (data + 2, &data);
1387 aname = g_new0 (MonoAssemblyName, 1);
1388 /*g_print ("friend ass: %s\n", data);*/
1389 if (mono_assembly_name_parse_full (data, aname, TRUE, NULL, NULL)) {
1390 list = g_slist_prepend (list, aname);
1395 mono_custom_attrs_free (attrs);
1397 mono_assemblies_lock ();
1398 if (ass->friend_assembly_names_inited) {
1399 mono_assemblies_unlock ();
1400 g_slist_foreach (list, free_item, NULL);
1401 g_slist_free (list);
1404 ass->friend_assembly_names = list;
1406 /* Because of the double checked locking pattern above */
1407 mono_memory_barrier ();
1408 ass->friend_assembly_names_inited = TRUE;
1409 mono_assemblies_unlock ();
1413 * mono_assembly_open:
1414 * @filename: Opens the assembly pointed out by this name
1415 * @status: where a status code can be returned
1417 * mono_assembly_open opens the PE-image pointed by @filename, and
1418 * loads any external assemblies referenced by it.
1420 * Return: a pointer to the MonoAssembly if @filename contains a valid
1421 * assembly or NULL on error. Details about the error are stored in the
1425 mono_assembly_open (const char *filename, MonoImageOpenStatus *status)
1427 return mono_assembly_open_full (filename, status, FALSE);
1431 mono_assembly_load_from_full (MonoImage *image, const char*fname,
1432 MonoImageOpenStatus *status, gboolean refonly)
1434 MonoAssembly *ass, *ass2;
1437 if (!image->tables [MONO_TABLE_ASSEMBLY].rows) {
1438 /* 'image' doesn't have a manifest -- maybe someone is trying to Assembly.Load a .netmodule */
1439 *status = MONO_IMAGE_IMAGE_INVALID;
1443 #if defined (PLATFORM_WIN32)
1448 tmp_fn = g_strdup (fname);
1449 for (i = strlen (tmp_fn) - 1; i >= 0; i--) {
1450 if (tmp_fn [i] == '/')
1454 base_dir = absolute_dir (tmp_fn);
1458 base_dir = absolute_dir (fname);
1462 * Create assembly struct, and enter it into the assembly cache
1464 ass = g_new0 (MonoAssembly, 1);
1465 ass->basedir = base_dir;
1466 ass->ref_only = refonly;
1469 mono_profiler_assembly_event (ass, MONO_PROFILE_START_LOAD);
1471 mono_assembly_fill_assembly_name (image, &ass->aname);
1473 if (mono_defaults.corlib && strcmp (ass->aname.name, "mscorlib") == 0) {
1474 // MS.NET doesn't support loading other mscorlibs
1477 mono_image_addref (mono_defaults.corlib);
1478 *status = MONO_IMAGE_OK;
1479 return mono_defaults.corlib->assembly;
1482 /* Add a non-temporary reference because of ass->image */
1483 mono_image_addref (image);
1485 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);
1488 * The load hooks might take locks so we can't call them while holding the
1491 if (ass->aname.name) {
1492 ass2 = mono_assembly_invoke_search_hook_internal (&ass->aname, refonly, FALSE);
1496 mono_image_close (image);
1497 *status = MONO_IMAGE_OK;
1502 mono_assemblies_lock ();
1504 if (image->assembly) {
1506 * This means another thread has already loaded the assembly, but not yet
1507 * called the load hooks so the search hook can't find the assembly.
1509 mono_assemblies_unlock ();
1510 ass2 = image->assembly;
1513 mono_image_close (image);
1514 *status = MONO_IMAGE_OK;
1518 image->assembly = ass;
1520 loaded_assemblies = g_list_prepend (loaded_assemblies, ass);
1521 mono_assemblies_unlock ();
1523 #ifdef PLATFORM_WIN32
1524 if (image->is_module_handle)
1525 mono_image_fixup_vtable (image);
1528 mono_assembly_invoke_load_hook (ass);
1530 mono_profiler_assembly_loaded (ass, MONO_PROFILE_OK);
1536 mono_assembly_load_from (MonoImage *image, const char *fname,
1537 MonoImageOpenStatus *status)
1539 return mono_assembly_load_from_full (image, fname, status, FALSE);
1543 * mono_assembly_name_free:
1544 * @aname: assembly name to free
1546 * Frees the provided assembly name object.
1547 * (it does not frees the object itself, only the name members).
1550 mono_assembly_name_free (MonoAssemblyName *aname)
1555 g_free ((void *) aname->name);
1556 g_free ((void *) aname->culture);
1557 g_free ((void *) aname->hash_value);
1561 parse_public_key (const gchar *key, gchar** pubkey)
1564 gchar header [16], val, *arr;
1565 gint i, j, offset, bitlen, keylen, pkeylen;
1567 keylen = strlen (key) >> 1;
1571 val = g_ascii_xdigit_value (key [0]) << 4;
1572 val |= g_ascii_xdigit_value (key [1]);
1577 val = g_ascii_xdigit_value (key [24]);
1578 val |= g_ascii_xdigit_value (key [25]);
1590 /* We need the first 16 bytes
1591 * to check whether this key is valid or not */
1592 pkeylen = strlen (pkey) >> 1;
1596 for (i = 0, j = 0; i < 16; i++) {
1597 header [i] = g_ascii_xdigit_value (pkey [j++]) << 4;
1598 header [i] |= g_ascii_xdigit_value (pkey [j++]);
1601 if (header [0] != 0x06 || /* PUBLICKEYBLOB (0x06) */
1602 header [1] != 0x02 || /* Version (0x02) */
1603 header [2] != 0x00 || /* Reserved (word) */
1604 header [3] != 0x00 ||
1605 (guint)(read32 (header + 8)) != 0x31415352) /* DWORD magic = RSA1 */
1608 /* Based on this length, we _should_ be able to know if the length is right */
1609 bitlen = read32 (header + 12) >> 3;
1610 if ((bitlen + 16 + 4) != pkeylen)
1613 /* Encode the size of the blob */
1615 if (keylen <= 127) {
1616 arr = g_malloc (keylen + 1);
1617 arr [offset++] = keylen;
1619 arr = g_malloc (keylen + 2);
1620 arr [offset++] = 0x80; /* 10bs */
1621 arr [offset++] = keylen;
1624 for (i = offset, j = 0; i < keylen + offset; i++) {
1625 arr [i] = g_ascii_xdigit_value (key [j++]) << 4;
1626 arr [i] |= g_ascii_xdigit_value (key [j++]);
1635 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)
1637 gint major, minor, build, revision;
1640 gchar *pkey, *pkeyptr, *encoded, tok [8];
1642 memset (aname, 0, sizeof (MonoAssemblyName));
1645 version_parts = sscanf (version, "%u.%u.%u.%u", &major, &minor, &build, &revision);
1646 if (version_parts < 2 || version_parts > 4)
1649 /* FIXME: we should set build & revision to -1 (instead of 0)
1650 if these are not set in the version string. That way, later on,
1651 we can still determine if these were specified. */
1652 aname->major = major;
1653 aname->minor = minor;
1654 if (version_parts >= 3)
1655 aname->build = build;
1658 if (version_parts == 4)
1659 aname->revision = revision;
1661 aname->revision = 0;
1664 aname->flags = flags;
1665 aname->name = g_strdup (name);
1668 if (g_ascii_strcasecmp (culture, "neutral") == 0)
1669 aname->culture = g_strdup ("");
1671 aname->culture = g_strdup (culture);
1674 if (token && strncmp (token, "null", 4) != 0) {
1677 /* the constant includes the ending NULL, hence the -1 */
1678 if (strlen (token) != (MONO_PUBLIC_KEY_TOKEN_LENGTH - 1)) {
1679 mono_assembly_name_free (aname);
1682 lower = g_ascii_strdown (token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1683 g_strlcpy ((char*)aname->public_key_token, lower, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1688 if (strcmp (key, "null") == 0 || !parse_public_key (key, &pkey)) {
1689 mono_assembly_name_free (aname);
1693 len = mono_metadata_decode_blob_size ((const gchar *) pkey, (const gchar **) &pkeyptr);
1694 // We also need to generate the key token
1695 mono_digest_get_public_token ((guchar*) tok, (guint8*) pkeyptr, len);
1696 encoded = encode_public_tok ((guchar*) tok, 8);
1697 g_strlcpy ((gchar*)aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1700 if (save_public_key)
1701 aname->public_key = (guint8*) pkey;
1710 parse_assembly_directory_name (const char *name, const char *dirname, MonoAssemblyName *aname)
1715 parts = g_strsplit (dirname, "_", 3);
1716 if (!parts || !parts[0] || !parts[1] || !parts[2]) {
1721 res = build_assembly_name (name, parts[0], parts[1], parts[2], NULL, 0, aname, FALSE);
1727 mono_assembly_name_parse_full (const char *name, MonoAssemblyName *aname, gboolean save_public_key, gboolean *is_version_defined, gboolean *is_token_defined)
1730 gchar *version = NULL;
1731 gchar *culture = NULL;
1732 gchar *token = NULL;
1734 gchar *retargetable = NULL;
1739 gboolean version_defined;
1740 gboolean token_defined;
1743 if (!is_version_defined)
1744 is_version_defined = &version_defined;
1745 *is_version_defined = FALSE;
1746 if (!is_token_defined)
1747 is_token_defined = &token_defined;
1748 *is_token_defined = FALSE;
1750 parts = tmp = g_strsplit (name, ",", 6);
1751 if (!tmp || !*tmp) {
1756 dllname = g_strstrip (*tmp);
1761 value = g_strstrip (*tmp);
1762 if (!g_ascii_strncasecmp (value, "Version=", 8)) {
1763 *is_version_defined = TRUE;
1764 version = g_strstrip (value + 8);
1765 if (strlen (version) == 0) {
1766 goto cleanup_and_fail;
1772 if (!g_ascii_strncasecmp (value, "Culture=", 8)) {
1773 culture = g_strstrip (value + 8);
1774 if (strlen (culture) == 0) {
1775 goto cleanup_and_fail;
1781 if (!g_ascii_strncasecmp (value, "PublicKeyToken=", 15)) {
1782 *is_token_defined = TRUE;
1783 token = g_strstrip (value + 15);
1784 if (strlen (token) == 0) {
1785 goto cleanup_and_fail;
1791 if (!g_ascii_strncasecmp (value, "PublicKey=", 10)) {
1792 key = g_strstrip (value + 10);
1793 if (strlen (key) == 0) {
1794 goto cleanup_and_fail;
1800 if (!g_ascii_strncasecmp (value, "Retargetable=", 13)) {
1801 retargetable = g_strstrip (value + 13);
1802 if (strlen (retargetable) == 0) {
1803 goto cleanup_and_fail;
1805 if (!g_ascii_strcasecmp (retargetable, "yes")) {
1806 flags |= ASSEMBLYREF_RETARGETABLE_FLAG;
1807 } else if (g_ascii_strcasecmp (retargetable, "no")) {
1808 goto cleanup_and_fail;
1814 if (!g_ascii_strncasecmp (value, "ProcessorArchitecture=", 22)) {
1815 /* this is ignored for now, until we can change MonoAssemblyName */
1824 /* if retargetable flag is set, then we must have a fully qualified name */
1825 if (retargetable != NULL && (version == NULL || culture == NULL || (key == NULL && token == NULL))) {
1826 goto cleanup_and_fail;
1829 res = build_assembly_name (dllname, version, culture, token, key, flags,
1830 aname, save_public_key);
1840 * mono_assembly_name_parse:
1841 * @name: name to parse
1842 * @aname: the destination assembly name
1844 * Parses an assembly qualified type name and assigns the name,
1845 * version, culture and token to the provided assembly name object.
1847 * Returns: true if the name could be parsed.
1850 mono_assembly_name_parse (const char *name, MonoAssemblyName *aname)
1852 return mono_assembly_name_parse_full (name, aname, FALSE, NULL, NULL);
1855 static MonoAssembly*
1856 probe_for_partial_name (const char *basepath, const char *fullname, MonoAssemblyName *aname, MonoImageOpenStatus *status)
1858 gchar *fullpath = NULL;
1860 const char* direntry;
1861 MonoAssemblyName gac_aname;
1862 gint major=-1, minor=0, build=0, revision=0;
1863 gboolean exact_version;
1865 dirhandle = g_dir_open (basepath, 0, NULL);
1869 exact_version = (aname->major | aname->minor | aname->build | aname->revision) != 0;
1871 while ((direntry = g_dir_read_name (dirhandle))) {
1872 gboolean match = TRUE;
1874 if(!parse_assembly_directory_name (aname->name, direntry, &gac_aname))
1877 if (aname->culture != NULL && strcmp (aname->culture, gac_aname.culture) != 0)
1880 if (match && strlen ((char*)aname->public_key_token) > 0 &&
1881 !mono_public_tokens_are_equal (aname->public_key_token, gac_aname.public_key_token))
1885 if (exact_version) {
1886 match = (aname->major == gac_aname.major && aname->minor == gac_aname.minor &&
1887 aname->build == gac_aname.build && aname->revision == gac_aname.revision);
1889 else if (gac_aname.major < major)
1891 else if (gac_aname.major == major) {
1892 if (gac_aname.minor < minor)
1894 else if (gac_aname.minor == minor) {
1895 if (gac_aname.build < build)
1897 else if (gac_aname.build == build && gac_aname.revision <= revision)
1904 major = gac_aname.major;
1905 minor = gac_aname.minor;
1906 build = gac_aname.build;
1907 revision = gac_aname.revision;
1909 fullpath = g_build_path (G_DIR_SEPARATOR_S, basepath, direntry, fullname, NULL);
1912 mono_assembly_name_free (&gac_aname);
1915 g_dir_close (dirhandle);
1917 if (fullpath == NULL)
1920 MonoAssembly *res = mono_assembly_open (fullpath, status);
1927 mono_assembly_load_with_partial_name (const char *name, MonoImageOpenStatus *status)
1930 MonoAssemblyName *aname, base_name, maped_aname;
1931 gchar *fullname, *gacpath;
1934 memset (&base_name, 0, sizeof (MonoAssemblyName));
1937 if (!mono_assembly_name_parse (name, aname))
1941 * If no specific version has been requested, make sure we load the
1942 * correct version for system assemblies.
1944 if ((aname->major | aname->minor | aname->build | aname->revision) == 0)
1945 aname = mono_assembly_remap_version (aname, &maped_aname);
1947 res = mono_assembly_loaded (aname);
1949 mono_assembly_name_free (aname);
1953 res = invoke_assembly_preload_hook (aname, assemblies_path);
1955 res->in_gac = FALSE;
1956 mono_assembly_name_free (aname);
1960 fullname = g_strdup_printf ("%s.dll", aname->name);
1962 if (extra_gac_paths) {
1963 paths = extra_gac_paths;
1964 while (!res && *paths) {
1965 gacpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", aname->name, NULL);
1966 res = probe_for_partial_name (gacpath, fullname, aname, status);
1975 mono_assembly_name_free (aname);
1979 gacpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (), "mono", "gac", aname->name, NULL);
1980 res = probe_for_partial_name (gacpath, fullname, aname, status);
1986 MonoDomain *domain = mono_domain_get ();
1987 MonoReflectionAssembly *refasm = mono_try_assembly_resolve (domain, mono_string_new (domain, name), FALSE);
1989 res = refasm->assembly;
1993 mono_assembly_name_free (aname);
1999 mono_assembly_is_in_gac (const gchar *filename)
2001 const gchar *rootdir;
2005 if (filename == NULL)
2008 for (paths = extra_gac_paths; paths && *paths; paths++) {
2009 if (strstr (*paths, filename) != *paths)
2012 gp = (gchar *) (filename + strlen (*paths));
2013 if (*gp != G_DIR_SEPARATOR)
2016 if (strncmp (gp, "lib", 3))
2019 if (*gp != G_DIR_SEPARATOR)
2022 if (strncmp (gp, "mono", 4))
2025 if (*gp != G_DIR_SEPARATOR)
2028 if (strncmp (gp, "gac", 3))
2031 if (*gp != G_DIR_SEPARATOR)
2037 rootdir = mono_assembly_getrootdir ();
2038 if (strstr (filename, rootdir) != filename)
2041 gp = (gchar *) (filename + strlen (rootdir));
2042 if (*gp != G_DIR_SEPARATOR)
2045 if (strncmp (gp, "mono", 4))
2048 if (*gp != G_DIR_SEPARATOR)
2051 if (strncmp (gp, "gac", 3))
2054 if (*gp != G_DIR_SEPARATOR)
2060 mono_assembly_load_publisher_policy (MonoAssemblyName *aname)
2063 gchar *filename, *pname, *name, *culture, *version, *fullpath, *subpath;
2067 if (strstr (aname->name, ".dll")) {
2068 len = strlen (aname->name) - 4;
2069 name = g_malloc (len);
2070 strncpy (name, aname->name, len);
2072 name = g_strdup (aname->name);
2075 culture = g_utf8_strdown (aname->culture, -1);
2077 culture = g_strdup ("");
2079 pname = g_strdup_printf ("policy.%d.%d.%s", aname->major, aname->minor, name);
2080 version = g_strdup_printf ("0.0.0.0_%s_%s", culture, aname->public_key_token);
2084 filename = g_strconcat (pname, ".dll", NULL);
2085 subpath = g_build_path (G_DIR_SEPARATOR_S, pname, version, filename, NULL);
2091 if (extra_gac_paths) {
2092 paths = extra_gac_paths;
2093 while (!image && *paths) {
2094 fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths,
2095 "lib", "mono", "gac", subpath, NULL);
2096 image = mono_image_open (fullpath, NULL);
2107 fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
2108 "mono", "gac", subpath, NULL);
2109 image = mono_image_open (fullpath, NULL);
2116 static MonoAssemblyName*
2117 mono_assembly_bind_version (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname, MonoAssemblyName *dest_name)
2119 memcpy (dest_name, aname, sizeof (MonoAssemblyName));
2120 dest_name->major = info->new_version.major;
2121 dest_name->minor = info->new_version.minor;
2122 dest_name->build = info->new_version.build;
2123 dest_name->revision = info->new_version.revision;
2128 /* LOCKING: Assumes that we are already locked */
2129 static MonoAssemblyBindingInfo*
2130 search_binding_loaded (MonoAssemblyName *aname)
2134 for (tmp = loaded_assembly_bindings; tmp; tmp = tmp->next) {
2135 MonoAssemblyBindingInfo *info = tmp->data;
2136 if (assembly_binding_maps_name (info, aname))
2143 static MonoAssemblyName*
2144 mono_assembly_apply_binding (MonoAssemblyName *aname, MonoAssemblyName *dest_name)
2146 MonoAssemblyBindingInfo *info, *info2;
2149 if (aname->public_key_token [0] == 0)
2152 mono_loader_lock ();
2153 info = search_binding_loaded (aname);
2154 mono_loader_unlock ();
2156 if (!check_policy_versions (info, aname))
2159 mono_assembly_bind_version (info, aname, dest_name);
2163 info = g_new0 (MonoAssemblyBindingInfo, 1);
2164 info->major = aname->major;
2165 info->minor = aname->minor;
2167 ppimage = mono_assembly_load_publisher_policy (aname);
2169 get_publisher_policy_info (ppimage, aname, info);
2170 mono_image_close (ppimage);
2173 /* Define default error value if needed */
2174 if (!info->is_valid) {
2175 info->name = g_strdup (aname->name);
2176 info->culture = g_strdup (aname->culture);
2177 g_strlcpy ((char *)info->public_key_token, (const char *)aname->public_key_token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
2180 mono_loader_lock ();
2181 info2 = search_binding_loaded (aname);
2183 /* This binding was added by another thread
2185 mono_assembly_binding_info_free (info);
2190 loaded_assembly_bindings = g_slist_prepend (loaded_assembly_bindings, info);
2192 mono_loader_unlock ();
2194 if (!info->is_valid || !check_policy_versions (info, aname))
2197 mono_assembly_bind_version (info, aname, dest_name);
2202 * mono_assembly_load_from_gac
2204 * @aname: The assembly name object
2206 static MonoAssembly*
2207 mono_assembly_load_from_gac (MonoAssemblyName *aname, gchar *filename, MonoImageOpenStatus *status, MonoBoolean refonly)
2209 MonoAssembly *result = NULL;
2210 gchar *name, *version, *culture, *fullpath, *subpath;
2215 if (aname->public_key_token [0] == 0) {
2219 if (strstr (aname->name, ".dll")) {
2220 len = strlen (filename) - 4;
2221 name = g_malloc (len);
2222 strncpy (name, aname->name, len);
2224 name = g_strdup (aname->name);
2227 if (aname->culture) {
2228 culture = g_utf8_strdown (aname->culture, -1);
2230 culture = g_strdup ("");
2233 pubtok = g_ascii_strdown ((char*)aname->public_key_token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
2234 version = g_strdup_printf ("%d.%d.%d.%d_%s_%s", aname->major,
2235 aname->minor, aname->build, aname->revision,
2239 subpath = g_build_path (G_DIR_SEPARATOR_S, name, version, filename, NULL);
2244 if (extra_gac_paths) {
2245 paths = extra_gac_paths;
2246 while (!result && *paths) {
2247 fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", subpath, NULL);
2248 result = mono_assembly_open_full (fullpath, status, refonly);
2255 result->in_gac = TRUE;
2260 fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
2261 "mono", "gac", subpath, NULL);
2262 result = mono_assembly_open_full (fullpath, status, refonly);
2266 result->in_gac = TRUE;
2275 mono_assembly_load_corlib (const MonoRuntimeInfo *runtime, MonoImageOpenStatus *status)
2280 /* g_print ("corlib already loaded\n"); */
2284 if (assemblies_path) {
2285 corlib = load_in_path ("mscorlib.dll", (const char**)assemblies_path, status, FALSE);
2290 /* Load corlib from mono/<version> */
2292 corlib_file = g_build_filename ("mono", runtime->framework_version, "mscorlib.dll", NULL);
2293 if (assemblies_path) {
2294 corlib = load_in_path (corlib_file, (const char**)assemblies_path, status, FALSE);
2296 g_free (corlib_file);
2300 corlib = load_in_path (corlib_file, default_path, status, FALSE);
2301 g_free (corlib_file);
2307 mono_assembly_load_full_nosearch (MonoAssemblyName *aname,
2308 const char *basedir,
2309 MonoImageOpenStatus *status,
2312 MonoAssembly *result;
2313 char *fullpath, *filename;
2314 MonoAssemblyName maped_aname, maped_name_pp;
2319 aname = mono_assembly_remap_version (aname, &maped_aname);
2321 /* Reflection only assemblies don't get assembly binding */
2323 aname = mono_assembly_apply_binding (aname, &maped_name_pp);
2325 result = mono_assembly_loaded_full (aname, refonly);
2329 result = refonly ? invoke_assembly_refonly_preload_hook (aname, assemblies_path) : invoke_assembly_preload_hook (aname, assemblies_path);
2331 result->in_gac = FALSE;
2335 /* Currently we retrieve the loaded corlib for reflection
2336 * only requests, like a common reflection only assembly
2338 if (strcmp (aname->name, "mscorlib") == 0 || strcmp (aname->name, "mscorlib.dll") == 0) {
2339 return mono_assembly_load_corlib (mono_get_runtime_info (), status);
2342 len = strlen (aname->name);
2343 for (ext_index = 0; ext_index < 2; ext_index ++) {
2344 ext = ext_index == 0 ? ".dll" : ".exe";
2345 if (len > 4 && (!strcmp (aname->name + len - 4, ".dll") || !strcmp (aname->name + len - 4, ".exe"))) {
2346 filename = g_strdup (aname->name);
2347 /* Don't try appending .dll/.exe if it already has one of those extensions */
2350 filename = g_strconcat (aname->name, ext, NULL);
2353 result = mono_assembly_load_from_gac (aname, filename, status, refonly);
2360 fullpath = g_build_filename (basedir, filename, NULL);
2361 result = mono_assembly_open_full (fullpath, status, refonly);
2364 result->in_gac = FALSE;
2370 result = load_in_path (filename, default_path, status, refonly);
2372 result->in_gac = FALSE;
2382 * mono_assembly_load_full:
2383 * @aname: A MonoAssemblyName with the assembly name to load.
2384 * @basedir: A directory to look up the assembly at.
2385 * @status: a pointer to a MonoImageOpenStatus to return the status of the load operation
2386 * @refonly: Whether this assembly is being opened in "reflection-only" mode.
2388 * Loads the assembly referenced by @aname, if the value of @basedir is not NULL, it
2389 * attempts to load the assembly from that directory before probing the standard locations.
2391 * If the assembly is being opened in reflection-only mode (@refonly set to TRUE) then no
2392 * assembly binding takes place.
2394 * Returns: the assembly referenced by @aname loaded or NULL on error. On error the
2395 * value pointed by status is updated with an error code.
2398 mono_assembly_load_full (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status, gboolean refonly)
2400 MonoAssembly *result = mono_assembly_load_full_nosearch (aname, basedir, status, refonly);
2403 /* Try a postload search hook */
2404 result = mono_assembly_invoke_search_hook_internal (aname, refonly, TRUE);
2409 * mono_assembly_load:
2410 * @aname: A MonoAssemblyName with the assembly name to load.
2411 * @basedir: A directory to look up the assembly at.
2412 * @status: a pointer to a MonoImageOpenStatus to return the status of the load operation
2414 * Loads the assembly referenced by @aname, if the value of @basedir is not NULL, it
2415 * attempts to load the assembly from that directory before probing the standard locations.
2417 * Returns: the assembly referenced by @aname loaded or NULL on error. On error the
2418 * value pointed by status is updated with an error code.
2421 mono_assembly_load (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status)
2423 return mono_assembly_load_full (aname, basedir, status, FALSE);
2427 mono_assembly_loaded_full (MonoAssemblyName *aname, gboolean refonly)
2430 MonoAssemblyName maped_aname;
2432 aname = mono_assembly_remap_version (aname, &maped_aname);
2434 res = mono_assembly_invoke_search_hook_internal (aname, refonly, FALSE);
2440 * mono_assembly_loaded:
2441 * @aname: an assembly to look for.
2443 * Returns: NULL If the given @aname assembly has not been loaded, or a pointer to
2444 * a MonoAssembly that matches the MonoAssemblyName specified.
2447 mono_assembly_loaded (MonoAssemblyName *aname)
2449 return mono_assembly_loaded_full (aname, FALSE);
2453 * mono_assembly_close:
2454 * @assembly: the assembly to release.
2456 * This method releases a reference to the @assembly. The assembly is
2457 * only released when all the outstanding references to it are released.
2460 mono_assembly_close (MonoAssembly *assembly)
2463 g_return_if_fail (assembly != NULL);
2465 if (assembly == REFERENCE_MISSING)
2468 /* Might be 0 already */
2469 if (InterlockedDecrement (&assembly->ref_count) > 0)
2472 mono_profiler_assembly_event (assembly, MONO_PROFILE_START_UNLOAD);
2474 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading assembly %s [%p].", assembly->aname.name, assembly);
2476 mono_debug_close_image (assembly->image);
2478 mono_assemblies_lock ();
2479 loaded_assemblies = g_list_remove (loaded_assemblies, assembly);
2480 mono_assemblies_unlock ();
2482 assembly->image->assembly = NULL;
2484 mono_image_close (assembly->image);
2486 for (tmp = assembly->friend_assembly_names; tmp; tmp = tmp->next) {
2487 MonoAssemblyName *fname = tmp->data;
2488 mono_assembly_name_free (fname);
2491 g_slist_free (assembly->friend_assembly_names);
2492 g_free (assembly->basedir);
2493 if (assembly->dynamic) {
2494 g_free ((char*)assembly->aname.culture);
2499 mono_profiler_assembly_event (assembly, MONO_PROFILE_END_UNLOAD);
2503 mono_assembly_load_module (MonoAssembly *assembly, guint32 idx)
2505 return mono_image_load_file_for_image (assembly->image, idx);
2509 mono_assembly_foreach (GFunc func, gpointer user_data)
2514 * We make a copy of the list to avoid calling the callback inside the
2515 * lock, which could lead to deadlocks.
2517 mono_assemblies_lock ();
2518 copy = g_list_copy (loaded_assemblies);
2519 mono_assemblies_unlock ();
2521 g_list_foreach (loaded_assemblies, func, user_data);
2527 * mono_assemblies_cleanup:
2529 * Free all resources used by this module.
2532 mono_assemblies_cleanup (void)
2536 DeleteCriticalSection (&assemblies_mutex);
2538 for (l = loaded_assembly_bindings; l; l = l->next) {
2539 MonoAssemblyBindingInfo *info = l->data;
2541 mono_assembly_binding_info_free (info);
2544 g_slist_free (loaded_assembly_bindings);
2546 free_assembly_load_hooks ();
2547 free_assembly_search_hooks ();
2548 free_assembly_preload_hooks ();
2552 * Holds the assembly of the application, for
2553 * System.Diagnostics.Process::MainModule
2555 static MonoAssembly *main_assembly=NULL;
2558 mono_assembly_set_main (MonoAssembly *assembly)
2560 main_assembly = assembly;
2564 * mono_assembly_get_main:
2566 * Returns: the assembly for the application, the first assembly that is loaded by the VM
2569 mono_assembly_get_main (void)
2571 return (main_assembly);
2575 * mono_assembly_get_image:
2576 * @assembly: The assembly to retrieve the image from
2578 * Returns: the MonoImage associated with this assembly.
2581 mono_assembly_get_image (MonoAssembly *assembly)
2583 return assembly->image;
2587 mono_register_bundled_assemblies (const MonoBundledAssembly **assemblies)
2589 bundles = assemblies;
2592 #define MONO_DECLSEC_FORMAT_10 0x3C
2593 #define MONO_DECLSEC_FORMAT_20 0x2E
2594 #define MONO_DECLSEC_FIELD 0x53
2595 #define MONO_DECLSEC_PROPERTY 0x54
2597 #define SKIP_VISIBILITY_XML_ATTRIBUTE ("\"SkipVerification\"")
2598 #define SKIP_VISIBILITY_ATTRIBUTE_NAME ("System.Security.Permissions.SecurityPermissionAttribute")
2599 #define SKIP_VISIBILITY_ATTRIBUTE_SIZE (sizeof (SKIP_VISIBILITY_ATTRIBUTE_NAME) - 1)
2600 #define SKIP_VISIBILITY_PROPERTY_NAME ("SkipVerification")
2601 #define SKIP_VISIBILITY_PROPERTY_SIZE (sizeof (SKIP_VISIBILITY_PROPERTY_NAME) - 1)
2604 mono_assembly_try_decode_skip_verification_param (const char *p, const char **resp, gboolean *abort_decoding)
2608 case MONO_DECLSEC_PROPERTY:
2610 case MONO_DECLSEC_FIELD:
2612 *abort_decoding = TRUE;
2617 if (*p++ != MONO_TYPE_BOOLEAN) {
2618 *abort_decoding = TRUE;
2622 /* property name length */
2623 len = mono_metadata_decode_value (p, &p);
2625 if (len >= SKIP_VISIBILITY_PROPERTY_SIZE && !memcmp (p, SKIP_VISIBILITY_PROPERTY_NAME, SKIP_VISIBILITY_PROPERTY_SIZE)) {
2636 mono_assembly_try_decode_skip_verification (const char *p, const char *endn)
2638 int i, j, num, len, params_len;
2640 if (*p == MONO_DECLSEC_FORMAT_10) {
2641 gsize read, written;
2642 char *res = g_convert (p, endn - p, "UTF-8", "UTF-16LE", &read, &written, NULL);
2644 gboolean found = strstr (res, SKIP_VISIBILITY_XML_ATTRIBUTE) != NULL;
2650 if (*p++ != MONO_DECLSEC_FORMAT_20)
2653 /* number of encoded permission attributes */
2654 num = mono_metadata_decode_value (p, &p);
2655 for (i = 0; i < num; ++i) {
2656 gboolean is_valid = FALSE;
2657 gboolean abort_decoding = FALSE;
2659 /* attribute name length */
2660 len = mono_metadata_decode_value (p, &p);
2662 /* We don't really need to fully decode the type. Comparing the name is enough */
2663 is_valid = len >= SKIP_VISIBILITY_ATTRIBUTE_SIZE && !memcmp (p, SKIP_VISIBILITY_ATTRIBUTE_NAME, SKIP_VISIBILITY_ATTRIBUTE_SIZE);
2667 /*size of the params table*/
2668 params_len = mono_metadata_decode_value (p, &p);
2670 const char *params_end = p + params_len;
2672 /* number of parameters */
2673 len = mono_metadata_decode_value (p, &p);
2675 for (j = 0; j < len; ++j) {
2676 if (mono_assembly_try_decode_skip_verification_param (p, &p, &abort_decoding))
2692 mono_assembly_has_skip_verification (MonoAssembly *assembly)
2695 guint32 cols [MONO_DECL_SECURITY_SIZE];
2699 if (MONO_SECMAN_FLAG_INIT (assembly->skipverification))
2700 return MONO_SECMAN_FLAG_GET_VALUE (assembly->skipverification);
2702 t = &assembly->image->tables [MONO_TABLE_DECLSECURITY];
2704 for (i = 0; i < t->rows; ++i) {
2705 mono_metadata_decode_row (t, i, cols, MONO_DECL_SECURITY_SIZE);
2706 if ((cols [MONO_DECL_SECURITY_PARENT] & MONO_HAS_DECL_SECURITY_MASK) != MONO_HAS_DECL_SECURITY_ASSEMBLY)
2708 if (cols [MONO_DECL_SECURITY_ACTION] != SECURITY_ACTION_REQMIN)
2711 blob = mono_metadata_blob_heap (assembly->image, cols [MONO_DECL_SECURITY_PERMISSIONSET]);
2712 len = mono_metadata_decode_blob_size (blob, &blob);
2716 if (mono_assembly_try_decode_skip_verification (blob, blob + len)) {
2717 MONO_SECMAN_FLAG_SET_VALUE (assembly->skipverification, TRUE);
2722 MONO_SECMAN_FLAG_SET_VALUE (assembly->skipverification, FALSE);