2 * assembly.c: Routines for loading assemblies.
5 * Miguel de Icaza (miguel@ximian.com)
7 * (C) 2001 Ximian, Inc. http://www.ximian.com
18 #include "rawbuffer.h"
19 #include "object-internals.h"
20 #include <mono/metadata/loader.h>
21 #include <mono/metadata/tabledefs.h>
22 #include <mono/metadata/metadata-internals.h>
23 #include <mono/metadata/profiler-private.h>
24 #include <mono/metadata/class-internals.h>
25 #include <mono/metadata/domain-internals.h>
26 #include <mono/metadata/mono-endian.h>
27 #include <mono/metadata/mono-debug.h>
28 #include <mono/io-layer/io-layer.h>
29 #include <mono/utils/mono-uri.h>
30 #include <mono/metadata/mono-config.h>
31 #include <mono/utils/mono-digest.h>
32 #include <mono/utils/mono-logger.h>
33 #include <mono/metadata/reflection.h>
34 #include <mono/metadata/coree.h>
36 #ifndef PLATFORM_WIN32
37 #include <sys/types.h>
42 /* AssemblyVersionMap: an assembly name and the assembly version set on which it is based */
44 const char* assembly_name;
45 guint8 version_set_index;
48 /* the default search path is empty, the first slot is replaced with the computed value */
55 /* Contains the list of directories to be searched for assemblies (MONO_PATH) */
56 static char **assemblies_path = NULL;
58 /* Contains the list of directories that point to auxiliary GACs */
59 static char **extra_gac_paths = NULL;
61 /* The list of system assemblies what will be remapped to the running
62 * runtime version. WARNING: this list must be sorted.
64 static const AssemblyVersionMap framework_assemblies [] = {
66 {"Commons.Xml.Relaxng", 0},
73 {"Microsoft.VisualBasic", 1},
74 {"Microsoft.VisualC", 1},
76 {"Mono.CompilerServices.SymbolWriter", 0},
78 {"Mono.Data.SybaseClient", 0},
80 {"Mono.Data.TdsClient", 0},
81 {"Mono.GetOptions", 0},
85 {"Mono.Security.Win32", 0},
87 {"Novell.Directory.Ldap", 0},
91 {"System.Configuration.Install", 0},
93 {"System.Data.OracleClient", 0},
94 {"System.Data.SqlXml", 0},
96 {"System.DirectoryServices", 0},
97 {"System.Drawing", 0},
98 {"System.Drawing.Design", 0},
99 {"System.EnterpriseServices", 0},
100 {"System.Management", 0},
101 {"System.Messaging", 0},
102 {"System.Runtime.Remoting", 0},
103 {"System.Runtime.Serialization.Formatters.Soap", 0},
104 {"System.Security", 0},
105 {"System.ServiceProcess", 0},
107 {"System.Web.Mobile", 0},
108 {"System.Web.Services", 0},
109 {"System.Windows.Forms", 0},
115 * keeps track of loaded assemblies
117 static GList *loaded_assemblies = NULL;
118 static MonoAssembly *corlib;
120 /* This protects loaded_assemblies and image->references */
121 #define mono_assemblies_lock() EnterCriticalSection (&assemblies_mutex)
122 #define mono_assemblies_unlock() LeaveCriticalSection (&assemblies_mutex)
123 static CRITICAL_SECTION assemblies_mutex;
125 /* If defined, points to the bundled assembly information */
126 const MonoBundledAssembly **bundles;
128 /* Loaded assembly binding info */
129 static GSList *loaded_assembly_bindings = NULL;
132 mono_assembly_invoke_search_hook_internal (MonoAssemblyName *aname, gboolean refonly, gboolean postload);
135 encode_public_tok (const guchar *token, gint32 len)
137 const static gchar allowed [] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
141 res = g_malloc (len * 2 + 1);
142 for (i = 0; i < len; i++) {
143 res [i * 2] = allowed [token [i] >> 4];
144 res [i * 2 + 1] = allowed [token [i] & 0xF];
151 * mono_public_tokens_are_equal:
152 * @pubt1: first public key token
153 * @pubt2: second public key token
155 * Compare two public key tokens and return #TRUE is they are equal and #FALSE
159 mono_public_tokens_are_equal (const unsigned char *pubt1, const unsigned char *pubt2)
161 return g_strcasecmp ((char*)pubt1, (char*)pubt2) == 0;
165 check_path_env (void)
168 char **splitted, **dest;
170 path = g_getenv ("MONO_PATH");
174 splitted = g_strsplit (path, G_SEARCHPATH_SEPARATOR_S, 1000);
176 g_strfreev (assemblies_path);
177 assemblies_path = dest = splitted;
185 if (g_getenv ("MONO_DEBUG") == NULL)
189 if (**splitted && !g_file_test (*splitted, G_FILE_TEST_IS_DIR))
190 g_warning ("'%s' in MONO_PATH doesn't exist or has wrong permissions.", *splitted);
197 check_extra_gac_path_env (void) {
199 char **splitted, **dest;
201 path = g_getenv ("MONO_GAC_PREFIX");
205 splitted = g_strsplit (path, G_SEARCHPATH_SEPARATOR_S, 1000);
207 g_strfreev (extra_gac_paths);
208 extra_gac_paths = dest = splitted;
216 if (g_getenv ("MONO_DEBUG") == NULL)
220 if (**splitted && !g_file_test (*splitted, G_FILE_TEST_IS_DIR))
221 g_warning ("'%s' in MONO_GAC_PATH doesn't exist or has wrong permissions.", *splitted);
228 assembly_binding_maps_name (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname)
230 if (strcmp (info->name, aname->name))
233 if (info->major != aname->major || info->minor != aname->minor)
236 if ((info->culture != NULL) != (aname->culture != NULL))
239 if (info->culture && strcmp (info->culture, aname->culture))
242 if (!mono_public_tokens_are_equal (info->public_key_token, aname->public_key_token))
249 mono_assembly_binding_info_free (MonoAssemblyBindingInfo *info)
252 g_free (info->culture);
256 get_publisher_policy_info (MonoImage *image, MonoAssemblyName *aname, MonoAssemblyBindingInfo *binding_info)
259 guint32 cols [MONO_MANIFEST_SIZE];
260 const gchar *filename;
261 gchar *subpath, *fullpath;
263 t = &image->tables [MONO_TABLE_MANIFESTRESOURCE];
264 /* MS Impl. accepts policy assemblies with more than
265 * one manifest resource, and only takes the first one */
267 binding_info->is_valid = FALSE;
271 mono_metadata_decode_row (t, 0, cols, MONO_MANIFEST_SIZE);
272 if ((cols [MONO_MANIFEST_IMPLEMENTATION] & MONO_IMPLEMENTATION_MASK) != MONO_IMPLEMENTATION_FILE) {
273 binding_info->is_valid = FALSE;
277 filename = mono_metadata_string_heap (image, cols [MONO_MANIFEST_NAME]);
278 g_assert (filename != NULL);
280 subpath = g_path_get_dirname (image->name);
281 fullpath = g_build_path (G_DIR_SEPARATOR_S, subpath, filename, NULL);
282 mono_config_parse_publisher_policy (fullpath, binding_info);
286 /* Define the optional elements/attributes before checking */
287 if (!binding_info->culture)
288 binding_info->culture = g_strdup ("");
290 /* Check that the most important elements/attributes exist */
291 if (!binding_info->name || !binding_info->public_key_token [0] || !binding_info->has_old_version_bottom ||
292 !binding_info->has_new_version || !assembly_binding_maps_name (binding_info, aname)) {
293 mono_assembly_binding_info_free (binding_info);
294 binding_info->is_valid = FALSE;
298 binding_info->is_valid = TRUE;
302 compare_versions (AssemblyVersionSet *v, MonoAssemblyName *aname)
304 if (v->major > aname->major)
306 else if (v->major < aname->major)
309 if (v->minor > aname->minor)
311 else if (v->minor < aname->minor)
314 if (v->build > aname->build)
316 else if (v->build < aname->build)
319 if (v->revision > aname->revision)
321 else if (v->revision < aname->revision)
328 check_policy_versions (MonoAssemblyBindingInfo *info, MonoAssemblyName *name)
333 /* If has_old_version_top doesn't exist, we don't have an interval */
334 if (!info->has_old_version_top) {
335 if (compare_versions (&info->old_version_bottom, name) == 0)
341 /* Check that the version defined by name is valid for the interval */
342 if (compare_versions (&info->old_version_top, name) < 0)
345 /* We should be greater or equal than the small version */
346 if (compare_versions (&info->old_version_bottom, name) > 0)
353 * mono_assembly_names_equal:
355 * @r: second assembly.
357 * Compares two MonoAssemblyNames and returns whether they are equal.
359 * This compares the names, the cultures, the release version and their
362 * Returns: TRUE if both assembly names are equal.
365 mono_assembly_names_equal (MonoAssemblyName *l, MonoAssemblyName *r)
367 if (!l->name || !r->name)
370 if (strcmp (l->name, r->name))
373 if (l->culture && r->culture && strcmp (l->culture, r->culture))
376 if (l->major != r->major || l->minor != r->minor ||
377 l->build != r->build || l->revision != r->revision)
378 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)))
381 if (!l->public_key_token [0] || !r->public_key_token [0])
384 if (!mono_public_tokens_are_equal (l->public_key_token, r->public_key_token))
390 static MonoAssembly *
391 load_in_path (const char *basename, const char** search_path, MonoImageOpenStatus *status, MonoBoolean refonly)
395 MonoAssembly *result;
397 for (i = 0; search_path [i]; ++i) {
398 fullpath = g_build_filename (search_path [i], basename, NULL);
399 result = mono_assembly_open_full (fullpath, status, refonly);
408 * mono_assembly_setrootdir:
409 * @root_dir: The pathname of the root directory where we will locate assemblies
411 * This routine sets the internal default root directory for looking up
414 * This is used by Windows installations to compute dynamically the
415 * place where the Mono assemblies are located.
419 mono_assembly_setrootdir (const char *root_dir)
422 * Override the MONO_ASSEMBLIES directory configured at compile time.
424 /* Leak if called more than once */
425 default_path [0] = g_strdup (root_dir);
429 * mono_assembly_getrootdir:
431 * Obtains the root directory used for looking up assemblies.
433 * Returns: a string with the directory, this string should not be freed.
435 G_CONST_RETURN gchar *
436 mono_assembly_getrootdir (void)
438 return default_path [0];
443 * @assembly_dir: the base directory for assemblies
444 * @config_dir: the base directory for configuration files
446 * This routine is used internally and by developers embedding
447 * the runtime into their own applications.
449 * There are a number of cases to consider: Mono as a system-installed
450 * package that is available on the location preconfigured or Mono in
451 * a relocated location.
453 * If you are using a system-installed Mono, you can pass NULL
454 * to both parameters. If you are not, you should compute both
455 * directory values and call this routine.
457 * The values for a given PREFIX are:
459 * assembly_dir: PREFIX/lib
460 * config_dir: PREFIX/etc
462 * Notice that embedders that use Mono in a relocated way must
463 * compute the location at runtime, as they will be in control
464 * of where Mono is installed.
467 mono_set_dirs (const char *assembly_dir, const char *config_dir)
469 #if defined (MONO_ASSEMBLIES)
470 if (assembly_dir == NULL)
471 assembly_dir = MONO_ASSEMBLIES;
473 #if defined (MONO_CFG_DIR)
474 if (config_dir == NULL)
475 config_dir = MONO_CFG_DIR;
477 mono_assembly_setrootdir (assembly_dir);
478 mono_set_config_dir (config_dir);
481 #ifndef PLATFORM_WIN32
484 compute_base (char *path)
486 char *p = rindex (path, '/');
490 /* Not a well known Mono executable, we are embedded, cant guess the base */
491 if (strcmp (p, "/mono") && strcmp (p, "/monodis") && strcmp (p, "/mint") && strcmp (p, "/monodiet"))
495 p = rindex (path, '/');
499 if (strcmp (p, "/bin") != 0)
508 mono_set_dirs (MONO_ASSEMBLIES, MONO_CFG_DIR);
515 char *config, *lib, *mono;
519 * Only /usr prefix is treated specially
521 if (strncmp (exe, MONO_BINDIR, strlen (MONO_BINDIR)) == 0 || (base = compute_base (exe)) == NULL){
526 config = g_build_filename (base, "etc", NULL);
527 lib = g_build_filename (base, "lib", NULL);
528 mono = g_build_filename (lib, "mono/1.0", NULL);
529 if (stat (mono, &buf) == -1)
532 mono_set_dirs (lib, config);
540 #endif /* PLATFORM_WIN32 */
545 * Registers the root directory for the Mono runtime, for Linux and Solaris 10,
546 * this auto-detects the prefix where Mono was installed.
549 mono_set_rootdir (void)
551 #ifdef PLATFORM_WIN32
552 gchar *bindir, *installdir, *root, *name, *config;
554 name = mono_get_module_file_name ((HMODULE) &__ImageBase);
555 bindir = g_path_get_dirname (name);
556 installdir = g_path_get_dirname (bindir);
557 root = g_build_path (G_DIR_SEPARATOR_S, installdir, "lib", NULL);
559 config = g_build_filename (root, "..", "etc", NULL);
560 mono_set_dirs (root, config);
573 s = readlink ("/proc/self/exe", buf, sizeof (buf)-1);
581 /* Solaris 10 style */
582 str = g_strdup_printf ("/proc/%d/path/a.out", getpid ());
583 s = readlink (str, buf, sizeof (buf)-1);
595 * mono_assemblies_init:
597 * Initialize global variables used by this module.
600 mono_assemblies_init (void)
603 * Initialize our internal paths if we have not been initialized yet.
604 * This happens when embedders use Mono.
606 if (mono_assembly_getrootdir () == NULL)
610 check_extra_gac_path_env ();
612 InitializeCriticalSection (&assemblies_mutex);
616 mono_assembly_fill_assembly_name (MonoImage *image, MonoAssemblyName *aname)
618 MonoTableInfo *t = &image->tables [MONO_TABLE_ASSEMBLY];
619 guint32 cols [MONO_ASSEMBLY_SIZE];
624 mono_metadata_decode_row (t, 0, cols, MONO_ASSEMBLY_SIZE);
627 aname->hash_value = NULL;
628 aname->name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLY_NAME]);
629 aname->culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLY_CULTURE]);
630 aname->flags = cols [MONO_ASSEMBLY_FLAGS];
631 aname->major = cols [MONO_ASSEMBLY_MAJOR_VERSION];
632 aname->minor = cols [MONO_ASSEMBLY_MINOR_VERSION];
633 aname->build = cols [MONO_ASSEMBLY_BUILD_NUMBER];
634 aname->revision = cols [MONO_ASSEMBLY_REV_NUMBER];
635 aname->hash_alg = cols [MONO_ASSEMBLY_HASH_ALG];
636 if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
637 guchar* token = g_malloc (8);
642 pkey = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
643 len = mono_metadata_decode_blob_size (pkey, &pkey);
644 aname->public_key = (guchar*)pkey;
646 mono_digest_get_public_token (token, aname->public_key, len);
647 encoded = encode_public_tok (token, 8);
648 g_strlcpy ((char*)aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
654 aname->public_key = NULL;
655 memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
658 if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
659 aname->public_key = (guchar*)mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
662 aname->public_key = 0;
668 * mono_stringify_assembly_name:
669 * @aname: the assembly name.
671 * Convert @aname into its string format. The returned string is dynamically
672 * allocated and should be freed by the caller.
674 * Returns: a newly allocated string with a string representation of
678 mono_stringify_assembly_name (MonoAssemblyName *aname)
680 return g_strdup_printf (
681 "%s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
683 aname->major, aname->minor, aname->build, aname->revision,
684 aname->culture && *aname->culture? aname->culture: "neutral",
685 aname->public_key_token [0] ? (char *)aname->public_key_token : "null",
686 (aname->flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
690 assemblyref_public_tok (MonoImage *image, guint32 key_index, guint32 flags)
692 const gchar *public_tok;
695 public_tok = mono_metadata_blob_heap (image, key_index);
696 len = mono_metadata_decode_blob_size (public_tok, &public_tok);
698 if (flags & ASSEMBLYREF_FULL_PUBLIC_KEY_FLAG) {
700 mono_digest_get_public_token (token, (guchar*)public_tok, len);
701 return encode_public_tok (token, 8);
704 return encode_public_tok ((guchar*)public_tok, len);
708 * mono_assembly_addref:
709 * @assemnly: the assembly to reference
711 * This routine increments the reference count on a MonoAssembly.
712 * The reference count is reduced every time the method mono_assembly_close() is
716 mono_assembly_addref (MonoAssembly *assembly)
718 InterlockedIncrement (&assembly->ref_count);
721 static MonoAssemblyName *
722 mono_assembly_remap_version (MonoAssemblyName *aname, MonoAssemblyName *dest_aname)
724 const MonoRuntimeInfo *current_runtime;
725 int pos, first, last;
727 if (aname->name == NULL) return aname;
728 current_runtime = mono_get_runtime_info ();
731 last = G_N_ELEMENTS (framework_assemblies) - 1;
733 while (first <= last) {
735 pos = first + (last - first) / 2;
736 res = strcmp (aname->name, framework_assemblies[pos].assembly_name);
738 const AssemblyVersionSet* vset;
739 int index = framework_assemblies[pos].version_set_index;
740 g_assert (index < G_N_ELEMENTS (current_runtime->version_sets));
741 vset = ¤t_runtime->version_sets [index];
743 if (aname->major == vset->major && aname->minor == vset->minor &&
744 aname->build == vset->build && aname->revision == vset->revision)
747 if ((aname->major | aname->minor | aname->build | aname->revision) != 0)
748 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_ASSEMBLY,
749 "The request to load the assembly %s v%d.%d.%d.%d was remapped to v%d.%d.%d.%d",
751 aname->major, aname->minor, aname->build, aname->revision,
752 vset->major, vset->minor, vset->build, vset->revision
755 memcpy (dest_aname, aname, sizeof(MonoAssemblyName));
756 dest_aname->major = vset->major;
757 dest_aname->minor = vset->minor;
758 dest_aname->build = vset->build;
759 dest_aname->revision = vset->revision;
761 } else if (res < 0) {
771 * mono_assembly_get_assemblyref:
773 * Fill out ANAME with the assembly name of the INDEXth assembly reference in IMAGE.
776 mono_assembly_get_assemblyref (MonoImage *image, int index, MonoAssemblyName *aname)
779 guint32 cols [MONO_ASSEMBLYREF_SIZE];
782 t = &image->tables [MONO_TABLE_ASSEMBLYREF];
784 mono_metadata_decode_row (t, index, cols, MONO_ASSEMBLYREF_SIZE);
786 hash = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLYREF_HASH_VALUE]);
787 aname->hash_len = mono_metadata_decode_blob_size (hash, &hash);
788 aname->hash_value = hash;
789 aname->name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_NAME]);
790 aname->culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_CULTURE]);
791 aname->flags = cols [MONO_ASSEMBLYREF_FLAGS];
792 aname->major = cols [MONO_ASSEMBLYREF_MAJOR_VERSION];
793 aname->minor = cols [MONO_ASSEMBLYREF_MINOR_VERSION];
794 aname->build = cols [MONO_ASSEMBLYREF_BUILD_NUMBER];
795 aname->revision = cols [MONO_ASSEMBLYREF_REV_NUMBER];
797 if (cols [MONO_ASSEMBLYREF_PUBLIC_KEY]) {
798 gchar *token = assemblyref_public_tok (image, cols [MONO_ASSEMBLYREF_PUBLIC_KEY], aname->flags);
799 g_strlcpy ((char*)aname->public_key_token, token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
802 memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
807 mono_assembly_load_reference (MonoImage *image, int index)
809 MonoAssembly *reference;
810 MonoAssemblyName aname;
811 MonoImageOpenStatus status;
814 * image->references is shared between threads, so we need to access
815 * it inside a critical section.
817 mono_assemblies_lock ();
818 if (!image->references) {
819 MonoTableInfo *t = &image->tables [MONO_TABLE_ASSEMBLYREF];
821 image->references = g_new0 (MonoAssembly *, t->rows + 1);
823 reference = image->references [index];
824 mono_assemblies_unlock ();
828 mono_assembly_get_assemblyref (image, index, &aname);
830 if (image->assembly && image->assembly->ref_only) {
831 /* We use the loaded corlib */
832 if (!strcmp (aname.name, "mscorlib"))
833 reference = mono_assembly_load_full (&aname, image->assembly->basedir, &status, FALSE);
835 reference = mono_assembly_loaded_full (&aname, TRUE);
837 /* Try a postload search hook */
838 reference = mono_assembly_invoke_search_hook_internal (&aname, TRUE, TRUE);
842 * Here we must advice that the error was due to
843 * a non loaded reference using the ReflectionOnly api
846 reference = REFERENCE_MISSING;
848 reference = mono_assembly_load (&aname, image->assembly? image->assembly->basedir: NULL, &status);
850 if (reference == NULL){
851 char *extra_msg = g_strdup ("");
853 if (status == MONO_IMAGE_ERROR_ERRNO && errno == ENOENT) {
854 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 : "" );
855 } else if (status == MONO_IMAGE_ERROR_ERRNO) {
856 extra_msg = g_strdup_printf ("System error: %s\n", strerror (errno));
857 } else if (status == MONO_IMAGE_MISSING_ASSEMBLYREF) {
858 extra_msg = g_strdup ("Cannot find an assembly referenced from this one.\n");
859 } else if (status == MONO_IMAGE_IMAGE_INVALID) {
860 extra_msg = g_strdup ("The file exists but is not a valid assembly.\n");
863 g_warning ("The following assembly referenced from %s could not be loaded:\n"
864 " Assembly: %s (assemblyref_index=%d)\n"
865 " Version: %d.%d.%d.%d\n"
866 " Public Key: %s\n%s",
867 image->name, aname.name, index,
868 aname.major, aname.minor, aname.build, aname.revision,
869 strlen ((char*)aname.public_key_token) == 0 ? "(none)" : (char*)aname.public_key_token, extra_msg);
873 mono_assemblies_lock ();
874 if (reference == NULL) {
875 /* Flag as not found */
876 reference = REFERENCE_MISSING;
879 if (!image->references [index]) {
880 if (reference != REFERENCE_MISSING){
881 mono_assembly_addref (reference);
883 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly Ref addref %s %p -> %s %p: %d\n",
884 image->assembly->aname.name, image->assembly, reference->aname.name, reference, reference->ref_count);
887 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Failed to load assembly %s %p\n",
888 image->assembly->aname.name, image->assembly);
891 image->references [index] = reference;
893 mono_assemblies_unlock ();
895 if (image->references [index] != reference) {
896 /* Somebody loaded it before us */
897 mono_assembly_close (reference);
902 mono_assembly_load_references (MonoImage *image, MonoImageOpenStatus *status)
904 /* This is a no-op now but it is part of the embedding API so we can't remove it */
905 *status = MONO_IMAGE_OK;
908 typedef struct AssemblyLoadHook AssemblyLoadHook;
909 struct AssemblyLoadHook {
910 AssemblyLoadHook *next;
911 MonoAssemblyLoadFunc func;
915 AssemblyLoadHook *assembly_load_hook = NULL;
918 mono_assembly_invoke_load_hook (MonoAssembly *ass)
920 AssemblyLoadHook *hook;
922 for (hook = assembly_load_hook; hook; hook = hook->next) {
923 hook->func (ass, hook->user_data);
928 mono_install_assembly_load_hook (MonoAssemblyLoadFunc func, gpointer user_data)
930 AssemblyLoadHook *hook;
932 g_return_if_fail (func != NULL);
934 hook = g_new0 (AssemblyLoadHook, 1);
936 hook->user_data = user_data;
937 hook->next = assembly_load_hook;
938 assembly_load_hook = hook;
942 free_assembly_load_hooks (void)
944 AssemblyLoadHook *hook, *next;
946 for (hook = assembly_load_hook; hook; hook = next) {
952 typedef struct AssemblySearchHook AssemblySearchHook;
953 struct AssemblySearchHook {
954 AssemblySearchHook *next;
955 MonoAssemblySearchFunc func;
961 AssemblySearchHook *assembly_search_hook = NULL;
964 mono_assembly_invoke_search_hook_internal (MonoAssemblyName *aname, gboolean refonly, gboolean postload)
966 AssemblySearchHook *hook;
968 for (hook = assembly_search_hook; hook; hook = hook->next) {
969 if ((hook->refonly == refonly) && (hook->postload == postload)) {
970 MonoAssembly *ass = hook->func (aname, hook->user_data);
980 mono_assembly_invoke_search_hook (MonoAssemblyName *aname)
982 return mono_assembly_invoke_search_hook_internal (aname, FALSE, FALSE);
986 mono_install_assembly_search_hook_internal (MonoAssemblySearchFunc func, gpointer user_data, gboolean refonly, gboolean postload)
988 AssemblySearchHook *hook;
990 g_return_if_fail (func != NULL);
992 hook = g_new0 (AssemblySearchHook, 1);
994 hook->user_data = user_data;
995 hook->refonly = refonly;
996 hook->postload = postload;
997 hook->next = assembly_search_hook;
998 assembly_search_hook = hook;
1002 mono_install_assembly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1004 mono_install_assembly_search_hook_internal (func, user_data, FALSE, FALSE);
1008 free_assembly_search_hooks (void)
1010 AssemblySearchHook *hook, *next;
1012 for (hook = assembly_search_hook; hook; hook = next) {
1019 mono_install_assembly_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1021 mono_install_assembly_search_hook_internal (func, user_data, TRUE, FALSE);
1025 mono_install_assembly_postload_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1027 mono_install_assembly_search_hook_internal (func, user_data, FALSE, TRUE);
1031 mono_install_assembly_postload_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1033 mono_install_assembly_search_hook_internal (func, user_data, TRUE, TRUE);
1036 typedef struct AssemblyPreLoadHook AssemblyPreLoadHook;
1037 struct AssemblyPreLoadHook {
1038 AssemblyPreLoadHook *next;
1039 MonoAssemblyPreLoadFunc func;
1043 static AssemblyPreLoadHook *assembly_preload_hook = NULL;
1044 static AssemblyPreLoadHook *assembly_refonly_preload_hook = NULL;
1046 static MonoAssembly *
1047 invoke_assembly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
1049 AssemblyPreLoadHook *hook;
1050 MonoAssembly *assembly;
1052 for (hook = assembly_preload_hook; hook; hook = hook->next) {
1053 assembly = hook->func (aname, assemblies_path, hook->user_data);
1054 if (assembly != NULL)
1061 static MonoAssembly *
1062 invoke_assembly_refonly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
1064 AssemblyPreLoadHook *hook;
1065 MonoAssembly *assembly;
1067 for (hook = assembly_refonly_preload_hook; hook; hook = hook->next) {
1068 assembly = hook->func (aname, assemblies_path, hook->user_data);
1069 if (assembly != NULL)
1077 mono_install_assembly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
1079 AssemblyPreLoadHook *hook;
1081 g_return_if_fail (func != NULL);
1083 hook = g_new0 (AssemblyPreLoadHook, 1);
1085 hook->user_data = user_data;
1086 hook->next = assembly_preload_hook;
1087 assembly_preload_hook = hook;
1091 mono_install_assembly_refonly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
1093 AssemblyPreLoadHook *hook;
1095 g_return_if_fail (func != NULL);
1097 hook = g_new0 (AssemblyPreLoadHook, 1);
1099 hook->user_data = user_data;
1100 hook->next = assembly_refonly_preload_hook;
1101 assembly_refonly_preload_hook = hook;
1105 free_assembly_preload_hooks (void)
1107 AssemblyPreLoadHook *hook, *next;
1109 for (hook = assembly_preload_hook; hook; hook = next) {
1114 for (hook = assembly_refonly_preload_hook; hook; hook = next) {
1121 absolute_dir (const gchar *filename)
1132 if (g_path_is_absolute (filename))
1133 return g_path_get_dirname (filename);
1135 cwd = g_get_current_dir ();
1136 mixed = g_build_filename (cwd, filename, NULL);
1137 parts = g_strsplit (mixed, G_DIR_SEPARATOR_S, 0);
1142 for (i = 0; (part = parts [i]) != NULL; i++) {
1143 if (!strcmp (part, "."))
1146 if (!strcmp (part, "..")) {
1147 if (list && list->next) /* Don't remove root */
1148 list = g_list_delete_link (list, list);
1150 list = g_list_prepend (list, part);
1154 result = g_string_new ("");
1155 list = g_list_reverse (list);
1157 /* Ignores last data pointer, which should be the filename */
1158 for (tmp = list; tmp && tmp->next != NULL; tmp = tmp->next){
1160 g_string_append_printf (result, "%s%c", (char *) tmp->data,
1165 g_string_free (result, FALSE);
1170 return g_strdup (".");
1177 * mono_assembly_open_from_bundle:
1178 * @filename: Filename requested
1179 * @status: return value
1181 * This routine tries to open the assembly specified by `filename' from the
1182 * defined bundles, if found, returns the MonoImage for it, if not found
1186 mono_assembly_open_from_bundle (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
1190 MonoImage *image = NULL;
1193 * we do a very simple search for bundled assemblies: it's not a general
1194 * purpose assembly loading mechanism.
1200 name = g_path_get_basename (filename);
1202 mono_assemblies_lock ();
1203 for (i = 0; !image && bundles [i]; ++i) {
1204 if (strcmp (bundles [i]->name, name) == 0) {
1205 image = mono_image_open_from_data_full ((char*)bundles [i]->data, bundles [i]->size, FALSE, status, refonly);
1209 mono_assemblies_unlock ();
1212 mono_image_addref (image);
1219 mono_assembly_open_full (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
1223 MonoImageOpenStatus def_status;
1227 g_return_val_if_fail (filename != NULL, NULL);
1230 status = &def_status;
1231 *status = MONO_IMAGE_OK;
1233 if (strncmp (filename, "file://", 7) == 0) {
1234 GError *error = NULL;
1235 gchar *uri = (gchar *) filename;
1239 * MS allows file://c:/... and fails on file://localhost/c:/...
1240 * They also throw an IndexOutOfRangeException if "file://"
1243 uri = g_strdup_printf ("file:///%s", uri + 7);
1246 uri = mono_escape_uri_string (tmpuri);
1247 fname = g_filename_from_uri (uri, NULL, &error);
1250 if (tmpuri != filename)
1253 if (error != NULL) {
1254 g_warning ("%s\n", error->message);
1255 g_error_free (error);
1256 fname = g_strdup (filename);
1259 fname = g_strdup (filename);
1262 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1263 "Assembly Loader probing location: '%s'.", fname);
1264 new_fname = mono_make_shadow_copy (fname);
1265 if (new_fname && new_fname != fname) {
1268 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1269 "Assembly Loader shadow-copied assembly to: '%s'.", fname);
1274 if (bundles != NULL)
1275 image = mono_assembly_open_from_bundle (fname, status, refonly);
1278 mono_assemblies_lock ();
1279 image = mono_image_open_full (fname, status, refonly);
1280 mono_assemblies_unlock ();
1284 if (*status == MONO_IMAGE_OK)
1285 *status = MONO_IMAGE_ERROR_ERRNO;
1290 if (image->assembly) {
1291 /* Already loaded by another appdomain */
1292 mono_assembly_invoke_load_hook (image->assembly);
1293 mono_image_close (image);
1295 return image->assembly;
1298 ass = mono_assembly_load_from_full (image, fname, status, refonly);
1301 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1302 "Assembly Loader loaded assembly from location: '%s'.", filename);
1304 mono_config_for_assembly (ass->image);
1307 /* Clear the reference added by mono_image_open */
1308 mono_image_close (image);
1316 free_item (gpointer val, gpointer user_data)
1322 * mono_assembly_load_friends:
1325 * Load the list of friend assemblies that are allowed to access
1326 * the assembly's internal types and members. They are stored as assembly
1327 * names in custom attributes.
1329 * This is an internal method, we need this because when we load mscorlib
1330 * we do not have the mono_defaults.internals_visible_class loaded yet,
1331 * so we need to load these after we initialize the runtime.
1333 * LOCKING: Acquires the assemblies lock plus the loader lock.
1336 mono_assembly_load_friends (MonoAssembly* ass)
1339 MonoCustomAttrInfo* attrs;
1342 if (ass->friend_assembly_names_inited)
1345 attrs = mono_custom_attrs_from_assembly (ass);
1347 mono_assemblies_lock ();
1348 ass->friend_assembly_names_inited = TRUE;
1349 mono_assemblies_unlock ();
1353 mono_assemblies_lock ();
1354 if (ass->friend_assembly_names_inited) {
1355 mono_assemblies_unlock ();
1358 mono_assemblies_unlock ();
1362 * We build the list outside the assemblies lock, the worse that can happen
1363 * is that we'll need to free the allocated list.
1365 for (i = 0; i < attrs->num_attrs; ++i) {
1366 MonoCustomAttrEntry *attr = &attrs->attrs [i];
1367 MonoAssemblyName *aname;
1370 /* Do some sanity checking */
1371 if (!attr->ctor || attr->ctor->klass != mono_defaults.internals_visible_class)
1373 if (attr->data_size < 4)
1375 data = (const char*)attr->data;
1376 /* 0xFF means null string, see custom attr format */
1377 if (data [0] != 1 || data [1] != 0 || (data [2] & 0xFF) == 0xFF)
1379 slen = mono_metadata_decode_value (data + 2, &data);
1380 aname = g_new0 (MonoAssemblyName, 1);
1381 /*g_print ("friend ass: %s\n", data);*/
1382 if (mono_assembly_name_parse_full (data, aname, TRUE, NULL, NULL)) {
1383 list = g_slist_prepend (list, aname);
1388 mono_custom_attrs_free (attrs);
1390 mono_assemblies_lock ();
1391 if (ass->friend_assembly_names_inited) {
1392 mono_assemblies_unlock ();
1393 g_slist_foreach (list, free_item, NULL);
1394 g_slist_free (list);
1397 ass->friend_assembly_names = list;
1399 /* Because of the double checked locking pattern above */
1400 mono_memory_barrier ();
1401 ass->friend_assembly_names_inited = TRUE;
1402 mono_assemblies_unlock ();
1406 * mono_assembly_open:
1407 * @filename: Opens the assembly pointed out by this name
1408 * @status: where a status code can be returned
1410 * mono_assembly_open opens the PE-image pointed by @filename, and
1411 * loads any external assemblies referenced by it.
1413 * Return: a pointer to the MonoAssembly if @filename contains a valid
1414 * assembly or NULL on error. Details about the error are stored in the
1418 mono_assembly_open (const char *filename, MonoImageOpenStatus *status)
1420 return mono_assembly_open_full (filename, status, FALSE);
1424 mono_assembly_load_from_full (MonoImage *image, const char*fname,
1425 MonoImageOpenStatus *status, gboolean refonly)
1427 MonoAssembly *ass, *ass2;
1430 if (!image->tables [MONO_TABLE_ASSEMBLY].rows) {
1431 /* 'image' doesn't have a manifest -- maybe someone is trying to Assembly.Load a .netmodule */
1432 *status = MONO_IMAGE_IMAGE_INVALID;
1436 #if defined (PLATFORM_WIN32)
1441 tmp_fn = g_strdup (fname);
1442 for (i = strlen (tmp_fn) - 1; i >= 0; i--) {
1443 if (tmp_fn [i] == '/')
1447 base_dir = absolute_dir (tmp_fn);
1451 base_dir = absolute_dir (fname);
1455 * Create assembly struct, and enter it into the assembly cache
1457 ass = g_new0 (MonoAssembly, 1);
1458 ass->basedir = base_dir;
1459 ass->ref_only = refonly;
1462 mono_profiler_assembly_event (ass, MONO_PROFILE_START_LOAD);
1464 mono_assembly_fill_assembly_name (image, &ass->aname);
1466 if (mono_defaults.corlib && strcmp (ass->aname.name, "mscorlib") == 0) {
1467 // MS.NET doesn't support loading other mscorlibs
1470 mono_image_addref (mono_defaults.corlib);
1471 *status = MONO_IMAGE_OK;
1472 return mono_defaults.corlib->assembly;
1475 /* Add a non-temporary reference because of ass->image */
1476 mono_image_addref (image);
1478 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);
1481 * The load hooks might take locks so we can't call them while holding the
1484 if (ass->aname.name) {
1485 ass2 = mono_assembly_invoke_search_hook_internal (&ass->aname, refonly, FALSE);
1489 mono_image_close (image);
1490 *status = MONO_IMAGE_OK;
1495 mono_assemblies_lock ();
1497 if (image->assembly) {
1499 * This means another thread has already loaded the assembly, but not yet
1500 * called the load hooks so the search hook can't find the assembly.
1502 mono_assemblies_unlock ();
1503 ass2 = image->assembly;
1506 mono_image_close (image);
1507 *status = MONO_IMAGE_OK;
1511 image->assembly = ass;
1513 loaded_assemblies = g_list_prepend (loaded_assemblies, ass);
1514 mono_assemblies_unlock ();
1516 #ifdef PLATFORM_WIN32
1517 if (image->is_module_handle)
1518 mono_image_fixup_vtable (image);
1521 mono_assembly_invoke_load_hook (ass);
1523 mono_profiler_assembly_loaded (ass, MONO_PROFILE_OK);
1529 mono_assembly_load_from (MonoImage *image, const char *fname,
1530 MonoImageOpenStatus *status)
1532 return mono_assembly_load_from_full (image, fname, status, FALSE);
1536 * mono_assembly_name_free:
1537 * @aname: assembly name to free
1539 * Frees the provided assembly name object.
1540 * (it does not frees the object itself, only the name members).
1543 mono_assembly_name_free (MonoAssemblyName *aname)
1548 g_free ((void *) aname->name);
1549 g_free ((void *) aname->culture);
1550 g_free ((void *) aname->hash_value);
1554 parse_public_key (const gchar *key, gchar** pubkey)
1557 gchar header [16], val, *arr;
1558 gint i, j, offset, bitlen, keylen, pkeylen;
1560 keylen = strlen (key) >> 1;
1564 val = g_ascii_xdigit_value (key [0]) << 4;
1565 val |= g_ascii_xdigit_value (key [1]);
1570 val = g_ascii_xdigit_value (key [24]);
1571 val |= g_ascii_xdigit_value (key [25]);
1583 /* We need the first 16 bytes
1584 * to check whether this key is valid or not */
1585 pkeylen = strlen (pkey) >> 1;
1589 for (i = 0, j = 0; i < 16; i++) {
1590 header [i] = g_ascii_xdigit_value (pkey [j++]) << 4;
1591 header [i] |= g_ascii_xdigit_value (pkey [j++]);
1594 if (header [0] != 0x06 || /* PUBLICKEYBLOB (0x06) */
1595 header [1] != 0x02 || /* Version (0x02) */
1596 header [2] != 0x00 || /* Reserved (word) */
1597 header [3] != 0x00 ||
1598 (guint)(read32 (header + 8)) != 0x31415352) /* DWORD magic = RSA1 */
1601 /* Based on this length, we _should_ be able to know if the length is right */
1602 bitlen = read32 (header + 12) >> 3;
1603 if ((bitlen + 16 + 4) != pkeylen)
1606 /* Encode the size of the blob */
1608 if (keylen <= 127) {
1609 arr = g_malloc (keylen + 1);
1610 arr [offset++] = keylen;
1612 arr = g_malloc (keylen + 2);
1613 arr [offset++] = 0x80; /* 10bs */
1614 arr [offset++] = keylen;
1617 for (i = offset, j = 0; i < keylen + offset; i++) {
1618 arr [i] = g_ascii_xdigit_value (key [j++]) << 4;
1619 arr [i] |= g_ascii_xdigit_value (key [j++]);
1628 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)
1630 gint major, minor, build, revision;
1633 gchar *pkey, *pkeyptr, *encoded, tok [8];
1635 memset (aname, 0, sizeof (MonoAssemblyName));
1638 version_parts = sscanf (version, "%u.%u.%u.%u", &major, &minor, &build, &revision);
1639 if (version_parts < 2 || version_parts > 4)
1642 /* FIXME: we should set build & revision to -1 (instead of 0)
1643 if these are not set in the version string. That way, later on,
1644 we can still determine if these were specified. */
1645 aname->major = major;
1646 aname->minor = minor;
1647 if (version_parts >= 3)
1648 aname->build = build;
1651 if (version_parts == 4)
1652 aname->revision = revision;
1654 aname->revision = 0;
1657 aname->flags = flags;
1658 aname->name = g_strdup (name);
1661 if (g_ascii_strcasecmp (culture, "neutral") == 0)
1662 aname->culture = g_strdup ("");
1664 aname->culture = g_strdup (culture);
1667 if (token && strncmp (token, "null", 4) != 0) {
1670 /* the constant includes the ending NULL, hence the -1 */
1671 if (strlen (token) != (MONO_PUBLIC_KEY_TOKEN_LENGTH - 1)) {
1672 mono_assembly_name_free (aname);
1675 lower = g_ascii_strdown (token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1676 g_strlcpy ((char*)aname->public_key_token, lower, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1681 if (strcmp (key, "null") == 0 || !parse_public_key (key, &pkey)) {
1682 mono_assembly_name_free (aname);
1686 len = mono_metadata_decode_blob_size ((const gchar *) pkey, (const gchar **) &pkeyptr);
1687 // We also need to generate the key token
1688 mono_digest_get_public_token ((guchar*) tok, (guint8*) pkeyptr, len);
1689 encoded = encode_public_tok ((guchar*) tok, 8);
1690 g_strlcpy ((gchar*)aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1693 if (save_public_key)
1694 aname->public_key = (guint8*) pkey;
1703 parse_assembly_directory_name (const char *name, const char *dirname, MonoAssemblyName *aname)
1708 parts = g_strsplit (dirname, "_", 3);
1709 if (!parts || !parts[0] || !parts[1] || !parts[2]) {
1714 res = build_assembly_name (name, parts[0], parts[1], parts[2], NULL, 0, aname, FALSE);
1720 mono_assembly_name_parse_full (const char *name, MonoAssemblyName *aname, gboolean save_public_key, gboolean *is_version_defined, gboolean *is_token_defined)
1723 gchar *version = NULL;
1724 gchar *culture = NULL;
1725 gchar *token = NULL;
1727 gchar *retargetable = NULL;
1732 gboolean version_defined;
1733 gboolean token_defined;
1736 if (!is_version_defined)
1737 is_version_defined = &version_defined;
1738 *is_version_defined = FALSE;
1739 if (!is_token_defined)
1740 is_token_defined = &token_defined;
1741 *is_token_defined = FALSE;
1743 parts = tmp = g_strsplit (name, ",", 6);
1744 if (!tmp || !*tmp) {
1749 dllname = g_strstrip (*tmp);
1754 value = g_strstrip (*tmp);
1755 if (!g_ascii_strncasecmp (value, "Version=", 8)) {
1756 *is_version_defined = TRUE;
1757 version = g_strstrip (value + 8);
1758 if (strlen (version) == 0) {
1759 goto cleanup_and_fail;
1765 if (!g_ascii_strncasecmp (value, "Culture=", 8)) {
1766 culture = g_strstrip (value + 8);
1767 if (strlen (culture) == 0) {
1768 goto cleanup_and_fail;
1774 if (!g_ascii_strncasecmp (value, "PublicKeyToken=", 15)) {
1775 *is_token_defined = TRUE;
1776 token = g_strstrip (value + 15);
1777 if (strlen (token) == 0) {
1778 goto cleanup_and_fail;
1784 if (!g_ascii_strncasecmp (value, "PublicKey=", 10)) {
1785 key = g_strstrip (value + 10);
1786 if (strlen (key) == 0) {
1787 goto cleanup_and_fail;
1793 if (!g_ascii_strncasecmp (value, "Retargetable=", 13)) {
1794 retargetable = g_strstrip (value + 13);
1795 if (strlen (retargetable) == 0) {
1796 goto cleanup_and_fail;
1798 if (!g_ascii_strcasecmp (retargetable, "yes")) {
1799 flags |= ASSEMBLYREF_RETARGETABLE_FLAG;
1800 } else if (g_ascii_strcasecmp (retargetable, "no")) {
1801 goto cleanup_and_fail;
1807 if (!g_ascii_strncasecmp (value, "ProcessorArchitecture=", 22)) {
1808 /* this is ignored for now, until we can change MonoAssemblyName */
1817 /* if retargetable flag is set, then we must have a fully qualified name */
1818 if (retargetable != NULL && (version == NULL || culture == NULL || (key == NULL && token == NULL))) {
1819 goto cleanup_and_fail;
1822 res = build_assembly_name (dllname, version, culture, token, key, flags,
1823 aname, save_public_key);
1833 * mono_assembly_name_parse:
1834 * @name: name to parse
1835 * @aname: the destination assembly name
1837 * Parses an assembly qualified type name and assigns the name,
1838 * version, culture and token to the provided assembly name object.
1840 * Returns: true if the name could be parsed.
1843 mono_assembly_name_parse (const char *name, MonoAssemblyName *aname)
1845 return mono_assembly_name_parse_full (name, aname, FALSE, NULL, NULL);
1848 static MonoAssembly*
1849 probe_for_partial_name (const char *basepath, const char *fullname, MonoAssemblyName *aname, MonoImageOpenStatus *status)
1851 gchar *fullpath = NULL;
1853 const char* direntry;
1854 MonoAssemblyName gac_aname;
1855 gint major=-1, minor=0, build=0, revision=0;
1856 gboolean exact_version;
1858 dirhandle = g_dir_open (basepath, 0, NULL);
1862 exact_version = (aname->major | aname->minor | aname->build | aname->revision) != 0;
1864 while ((direntry = g_dir_read_name (dirhandle))) {
1865 gboolean match = TRUE;
1867 if(!parse_assembly_directory_name (aname->name, direntry, &gac_aname))
1870 if (aname->culture != NULL && strcmp (aname->culture, gac_aname.culture) != 0)
1873 if (match && strlen ((char*)aname->public_key_token) > 0 &&
1874 !mono_public_tokens_are_equal (aname->public_key_token, gac_aname.public_key_token))
1878 if (exact_version) {
1879 match = (aname->major == gac_aname.major && aname->minor == gac_aname.minor &&
1880 aname->build == gac_aname.build && aname->revision == gac_aname.revision);
1882 else if (gac_aname.major < major)
1884 else if (gac_aname.major == major) {
1885 if (gac_aname.minor < minor)
1887 else if (gac_aname.minor == minor) {
1888 if (gac_aname.build < build)
1890 else if (gac_aname.build == build && gac_aname.revision <= revision)
1897 major = gac_aname.major;
1898 minor = gac_aname.minor;
1899 build = gac_aname.build;
1900 revision = gac_aname.revision;
1902 fullpath = g_build_path (G_DIR_SEPARATOR_S, basepath, direntry, fullname, NULL);
1905 mono_assembly_name_free (&gac_aname);
1908 g_dir_close (dirhandle);
1910 if (fullpath == NULL)
1913 MonoAssembly *res = mono_assembly_open (fullpath, status);
1920 mono_assembly_load_with_partial_name (const char *name, MonoImageOpenStatus *status)
1923 MonoAssemblyName *aname, base_name, maped_aname;
1924 gchar *fullname, *gacpath;
1927 memset (&base_name, 0, sizeof (MonoAssemblyName));
1930 if (!mono_assembly_name_parse (name, aname))
1934 * If no specific version has been requested, make sure we load the
1935 * correct version for system assemblies.
1937 if ((aname->major | aname->minor | aname->build | aname->revision) == 0)
1938 aname = mono_assembly_remap_version (aname, &maped_aname);
1940 res = mono_assembly_loaded (aname);
1942 mono_assembly_name_free (aname);
1946 res = invoke_assembly_preload_hook (aname, assemblies_path);
1948 res->in_gac = FALSE;
1949 mono_assembly_name_free (aname);
1953 fullname = g_strdup_printf ("%s.dll", aname->name);
1955 if (extra_gac_paths) {
1956 paths = extra_gac_paths;
1957 while (!res && *paths) {
1958 gacpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", aname->name, NULL);
1959 res = probe_for_partial_name (gacpath, fullname, aname, status);
1968 mono_assembly_name_free (aname);
1972 gacpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (), "mono", "gac", aname->name, NULL);
1973 res = probe_for_partial_name (gacpath, fullname, aname, status);
1979 MonoDomain *domain = mono_domain_get ();
1980 MonoReflectionAssembly *refasm = mono_try_assembly_resolve (domain, mono_string_new (domain, name), FALSE);
1982 res = refasm->assembly;
1986 mono_assembly_name_free (aname);
1992 mono_assembly_load_publisher_policy (MonoAssemblyName *aname)
1995 gchar *filename, *pname, *name, *culture, *version, *fullpath, *subpath;
1999 if (strstr (aname->name, ".dll")) {
2000 len = strlen (aname->name) - 4;
2001 name = g_malloc (len);
2002 strncpy (name, aname->name, len);
2004 name = g_strdup (aname->name);
2007 culture = g_utf8_strdown (aname->culture, -1);
2009 culture = g_strdup ("");
2011 pname = g_strdup_printf ("policy.%d.%d.%s", aname->major, aname->minor, name);
2012 version = g_strdup_printf ("0.0.0.0_%s_%s", culture, aname->public_key_token);
2016 filename = g_strconcat (pname, ".dll", NULL);
2017 subpath = g_build_path (G_DIR_SEPARATOR_S, pname, version, filename, NULL);
2023 if (extra_gac_paths) {
2024 paths = extra_gac_paths;
2025 while (!image && *paths) {
2026 fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths,
2027 "lib", "mono", "gac", subpath, NULL);
2028 image = mono_image_open (fullpath, NULL);
2039 fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
2040 "mono", "gac", subpath, NULL);
2041 image = mono_image_open (fullpath, NULL);
2048 static MonoAssemblyName*
2049 mono_assembly_bind_version (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname, MonoAssemblyName *dest_name)
2051 memcpy (dest_name, aname, sizeof (MonoAssemblyName));
2052 dest_name->major = info->new_version.major;
2053 dest_name->minor = info->new_version.minor;
2054 dest_name->build = info->new_version.build;
2055 dest_name->revision = info->new_version.revision;
2060 /* LOCKING: Assumes that we are already locked */
2061 static MonoAssemblyBindingInfo*
2062 search_binding_loaded (MonoAssemblyName *aname)
2066 for (tmp = loaded_assembly_bindings; tmp; tmp = tmp->next) {
2067 MonoAssemblyBindingInfo *info = tmp->data;
2068 if (assembly_binding_maps_name (info, aname))
2075 static MonoAssemblyName*
2076 mono_assembly_apply_binding (MonoAssemblyName *aname, MonoAssemblyName *dest_name)
2078 MonoAssemblyBindingInfo *info, *info2;
2081 if (aname->public_key_token [0] == 0)
2084 mono_loader_lock ();
2085 info = search_binding_loaded (aname);
2086 mono_loader_unlock ();
2088 if (!check_policy_versions (info, aname))
2091 mono_assembly_bind_version (info, aname, dest_name);
2095 info = g_new0 (MonoAssemblyBindingInfo, 1);
2096 info->major = aname->major;
2097 info->minor = aname->minor;
2099 ppimage = mono_assembly_load_publisher_policy (aname);
2101 get_publisher_policy_info (ppimage, aname, info);
2102 mono_image_close (ppimage);
2105 /* Define default error value if needed */
2106 if (!info->is_valid) {
2107 info->name = g_strdup (aname->name);
2108 info->culture = g_strdup (aname->culture);
2109 g_strlcpy ((char *)info->public_key_token, (const char *)aname->public_key_token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
2112 mono_loader_lock ();
2113 info2 = search_binding_loaded (aname);
2115 /* This binding was added by another thread
2117 mono_assembly_binding_info_free (info);
2122 loaded_assembly_bindings = g_slist_prepend (loaded_assembly_bindings, info);
2124 mono_loader_unlock ();
2126 if (!info->is_valid || !check_policy_versions (info, aname))
2129 mono_assembly_bind_version (info, aname, dest_name);
2134 * mono_assembly_load_from_gac
2136 * @aname: The assembly name object
2138 static MonoAssembly*
2139 mono_assembly_load_from_gac (MonoAssemblyName *aname, gchar *filename, MonoImageOpenStatus *status, MonoBoolean refonly)
2141 MonoAssembly *result = NULL;
2142 gchar *name, *version, *culture, *fullpath, *subpath;
2147 if (aname->public_key_token [0] == 0) {
2151 if (strstr (aname->name, ".dll")) {
2152 len = strlen (filename) - 4;
2153 name = g_malloc (len);
2154 strncpy (name, aname->name, len);
2156 name = g_strdup (aname->name);
2159 if (aname->culture) {
2160 culture = g_utf8_strdown (aname->culture, -1);
2162 culture = g_strdup ("");
2165 pubtok = g_ascii_strdown ((char*)aname->public_key_token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
2166 version = g_strdup_printf ("%d.%d.%d.%d_%s_%s", aname->major,
2167 aname->minor, aname->build, aname->revision,
2171 subpath = g_build_path (G_DIR_SEPARATOR_S, name, version, filename, NULL);
2176 if (extra_gac_paths) {
2177 paths = extra_gac_paths;
2178 while (!result && *paths) {
2179 fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", subpath, NULL);
2180 result = mono_assembly_open_full (fullpath, status, refonly);
2187 result->in_gac = TRUE;
2192 fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
2193 "mono", "gac", subpath, NULL);
2194 result = mono_assembly_open_full (fullpath, status, refonly);
2198 result->in_gac = TRUE;
2207 mono_assembly_load_corlib (const MonoRuntimeInfo *runtime, MonoImageOpenStatus *status)
2212 /* g_print ("corlib already loaded\n"); */
2216 if (assemblies_path) {
2217 corlib = load_in_path ("mscorlib.dll", (const char**)assemblies_path, status, FALSE);
2222 /* Load corlib from mono/<version> */
2224 corlib_file = g_build_filename ("mono", runtime->framework_version, "mscorlib.dll", NULL);
2225 if (assemblies_path) {
2226 corlib = load_in_path (corlib_file, (const char**)assemblies_path, status, FALSE);
2228 g_free (corlib_file);
2232 corlib = load_in_path (corlib_file, default_path, status, FALSE);
2233 g_free (corlib_file);
2239 mono_assembly_load_full_nosearch (MonoAssemblyName *aname,
2240 const char *basedir,
2241 MonoImageOpenStatus *status,
2244 MonoAssembly *result;
2245 char *fullpath, *filename;
2246 MonoAssemblyName maped_aname, maped_name_pp;
2251 aname = mono_assembly_remap_version (aname, &maped_aname);
2253 /* Reflection only assemblies don't get assembly binding */
2255 aname = mono_assembly_apply_binding (aname, &maped_name_pp);
2257 result = mono_assembly_loaded_full (aname, refonly);
2261 result = refonly ? invoke_assembly_refonly_preload_hook (aname, assemblies_path) : invoke_assembly_preload_hook (aname, assemblies_path);
2263 result->in_gac = FALSE;
2267 /* Currently we retrieve the loaded corlib for reflection
2268 * only requests, like a common reflection only assembly
2270 if (strcmp (aname->name, "mscorlib") == 0 || strcmp (aname->name, "mscorlib.dll") == 0) {
2271 return mono_assembly_load_corlib (mono_get_runtime_info (), status);
2274 len = strlen (aname->name);
2275 for (ext_index = 0; ext_index < 2; ext_index ++) {
2276 ext = ext_index == 0 ? ".dll" : ".exe";
2277 if (len > 4 && (!strcmp (aname->name + len - 4, ".dll") || !strcmp (aname->name + len - 4, ".exe"))) {
2278 filename = g_strdup (aname->name);
2279 /* Don't try appending .dll/.exe if it already has one of those extensions */
2282 filename = g_strconcat (aname->name, ext, NULL);
2285 result = mono_assembly_load_from_gac (aname, filename, status, refonly);
2292 fullpath = g_build_filename (basedir, filename, NULL);
2293 result = mono_assembly_open_full (fullpath, status, refonly);
2296 result->in_gac = FALSE;
2302 result = load_in_path (filename, default_path, status, refonly);
2304 result->in_gac = FALSE;
2314 * mono_assembly_load_full:
2315 * @aname: A MonoAssemblyName with the assembly name to load.
2316 * @basedir: A directory to look up the assembly at.
2317 * @status: a pointer to a MonoImageOpenStatus to return the status of the load operation
2318 * @refonly: Whether this assembly is being opened in "reflection-only" mode.
2320 * Loads the assembly referenced by @aname, if the value of @basedir is not NULL, it
2321 * attempts to load the assembly from that directory before probing the standard locations.
2323 * If the assembly is being opened in reflection-only mode (@refonly set to TRUE) then no
2324 * assembly binding takes place.
2326 * Returns: the assembly referenced by @aname loaded or NULL on error. On error the
2327 * value pointed by status is updated with an error code.
2330 mono_assembly_load_full (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status, gboolean refonly)
2332 MonoAssembly *result = mono_assembly_load_full_nosearch (aname, basedir, status, refonly);
2335 /* Try a postload search hook */
2336 result = mono_assembly_invoke_search_hook_internal (aname, refonly, TRUE);
2341 * mono_assembly_load:
2342 * @aname: A MonoAssemblyName with the assembly name to load.
2343 * @basedir: A directory to look up the assembly at.
2344 * @status: a pointer to a MonoImageOpenStatus to return the status of the load operation
2346 * Loads the assembly referenced by @aname, if the value of @basedir is not NULL, it
2347 * attempts to load the assembly from that directory before probing the standard locations.
2349 * Returns: the assembly referenced by @aname loaded or NULL on error. On error the
2350 * value pointed by status is updated with an error code.
2353 mono_assembly_load (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status)
2355 return mono_assembly_load_full (aname, basedir, status, FALSE);
2359 mono_assembly_loaded_full (MonoAssemblyName *aname, gboolean refonly)
2362 MonoAssemblyName maped_aname;
2364 aname = mono_assembly_remap_version (aname, &maped_aname);
2366 res = mono_assembly_invoke_search_hook_internal (aname, refonly, FALSE);
2372 * mono_assembly_loaded:
2373 * @aname: an assembly to look for.
2375 * Returns: NULL If the given @aname assembly has not been loaded, or a pointer to
2376 * a MonoAssembly that matches the MonoAssemblyName specified.
2379 mono_assembly_loaded (MonoAssemblyName *aname)
2381 return mono_assembly_loaded_full (aname, FALSE);
2385 * mono_assembly_close:
2386 * @assembly: the assembly to release.
2388 * This method releases a reference to the @assembly. The assembly is
2389 * only released when all the outstanding references to it are released.
2392 mono_assembly_close (MonoAssembly *assembly)
2395 g_return_if_fail (assembly != NULL);
2397 if (assembly == REFERENCE_MISSING)
2400 /* Might be 0 already */
2401 if (InterlockedDecrement (&assembly->ref_count) > 0)
2404 mono_profiler_assembly_event (assembly, MONO_PROFILE_START_UNLOAD);
2406 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading assembly %s [%p].", assembly->aname.name, assembly);
2408 mono_debug_close_image (assembly->image);
2410 mono_assemblies_lock ();
2411 loaded_assemblies = g_list_remove (loaded_assemblies, assembly);
2412 mono_assemblies_unlock ();
2414 assembly->image->assembly = NULL;
2416 mono_image_close (assembly->image);
2418 for (tmp = assembly->friend_assembly_names; tmp; tmp = tmp->next) {
2419 MonoAssemblyName *fname = tmp->data;
2420 mono_assembly_name_free (fname);
2423 g_slist_free (assembly->friend_assembly_names);
2424 g_free (assembly->basedir);
2425 if (assembly->dynamic) {
2426 g_free ((char*)assembly->aname.culture);
2431 mono_profiler_assembly_event (assembly, MONO_PROFILE_END_UNLOAD);
2435 mono_assembly_load_module (MonoAssembly *assembly, guint32 idx)
2437 return mono_image_load_file_for_image (assembly->image, idx);
2441 mono_assembly_foreach (GFunc func, gpointer user_data)
2446 * We make a copy of the list to avoid calling the callback inside the
2447 * lock, which could lead to deadlocks.
2449 mono_assemblies_lock ();
2450 copy = g_list_copy (loaded_assemblies);
2451 mono_assemblies_unlock ();
2453 g_list_foreach (loaded_assemblies, func, user_data);
2459 * mono_assemblies_cleanup:
2461 * Free all resources used by this module.
2464 mono_assemblies_cleanup (void)
2468 DeleteCriticalSection (&assemblies_mutex);
2470 for (l = loaded_assembly_bindings; l; l = l->next) {
2471 MonoAssemblyBindingInfo *info = l->data;
2473 mono_assembly_binding_info_free (info);
2476 g_slist_free (loaded_assembly_bindings);
2478 free_assembly_load_hooks ();
2479 free_assembly_search_hooks ();
2480 free_assembly_preload_hooks ();
2484 * Holds the assembly of the application, for
2485 * System.Diagnostics.Process::MainModule
2487 static MonoAssembly *main_assembly=NULL;
2490 mono_assembly_set_main (MonoAssembly *assembly)
2492 main_assembly = assembly;
2496 * mono_assembly_get_main:
2498 * Returns: the assembly for the application, the first assembly that is loaded by the VM
2501 mono_assembly_get_main (void)
2503 return (main_assembly);
2507 * mono_assembly_get_image:
2508 * @assembly: The assembly to retrieve the image from
2510 * Returns: the MonoImage associated with this assembly.
2513 mono_assembly_get_image (MonoAssembly *assembly)
2515 return assembly->image;
2519 mono_register_bundled_assemblies (const MonoBundledAssembly **assemblies)
2521 bundles = assemblies;
2524 #define MONO_DECLSEC_FORMAT_20 0x2E
2525 #define MONO_DECLSEC_FIELD 0x53
2526 #define MONO_DECLSEC_PROPERTY 0x54
2528 #define SKIP_VISIBILITY_ATTRIBUTE_NAME ("System.Security.Permissions.SecurityPermissionAttribute")
2529 #define SKIP_VISIBILITY_ATTRIBUTE_SIZE (sizeof (SKIP_VISIBILITY_ATTRIBUTE_NAME) - 1)
2530 #define SKIP_VISIBILITY_PROPERTY_NAME ("SkipVerification")
2531 #define SKIP_VISIBILITY_PROPERTY_SIZE (sizeof (SKIP_VISIBILITY_PROPERTY_NAME) - 1)
2534 mono_assembly_try_decode_skip_verification_param (const char *p, const char **resp, gboolean *abort_decoding)
2538 case MONO_DECLSEC_PROPERTY:
2540 case MONO_DECLSEC_FIELD:
2542 *abort_decoding = TRUE;
2547 if (*p++ != MONO_TYPE_BOOLEAN) {
2548 *abort_decoding = TRUE;
2552 /* property name length */
2553 len = mono_metadata_decode_value (p, &p);
2555 if (len >= SKIP_VISIBILITY_PROPERTY_SIZE && !memcmp (p, SKIP_VISIBILITY_PROPERTY_NAME, SKIP_VISIBILITY_PROPERTY_SIZE)) {
2566 mono_assembly_try_decode_skip_verification (const char *p, const char *endn)
2568 int i, j, num, len, params_len;
2570 if (*p++ != MONO_DECLSEC_FORMAT_20)
2573 /* number of encoded permission attributes */
2574 num = mono_metadata_decode_value (p, &p);
2575 for (i = 0; i < num; ++i) {
2576 gboolean is_valid = FALSE;
2577 gboolean abort_decoding = FALSE;
2579 /* attribute name length */
2580 len = mono_metadata_decode_value (p, &p);
2582 /* We don't really need to fully decode the type. Comparing the name is enough */
2583 is_valid = len >= SKIP_VISIBILITY_ATTRIBUTE_SIZE && !memcmp (p, SKIP_VISIBILITY_ATTRIBUTE_NAME, SKIP_VISIBILITY_ATTRIBUTE_SIZE);
2587 /*size of the params table*/
2588 params_len = mono_metadata_decode_value (p, &p);
2590 const char *params_end = p + params_len;
2592 /* number of parameters */
2593 len = mono_metadata_decode_value (p, &p);
2595 for (j = 0; j < len; ++j) {
2596 if (mono_assembly_try_decode_skip_verification_param (p, &p, &abort_decoding))
2612 mono_assembly_has_skip_verification (MonoAssembly *assembly)
2615 guint32 cols [MONO_DECL_SECURITY_SIZE];
2619 if (MONO_SECMAN_FLAG_INIT (assembly->skipverification))
2620 return MONO_SECMAN_FLAG_GET_VALUE (assembly->skipverification);
2622 t = &assembly->image->tables [MONO_TABLE_DECLSECURITY];
2624 for (i = 0; i < t->rows; ++i) {
2625 mono_metadata_decode_row (t, i, cols, MONO_DECL_SECURITY_SIZE);
2626 if ((cols [MONO_DECL_SECURITY_PARENT] & MONO_HAS_DECL_SECURITY_MASK) != MONO_HAS_DECL_SECURITY_ASSEMBLY)
2628 if (cols [MONO_DECL_SECURITY_ACTION] != SECURITY_ACTION_REQMIN)
2631 blob = mono_metadata_blob_heap (assembly->image, cols [MONO_DECL_SECURITY_PERMISSIONSET]);
2632 len = mono_metadata_decode_blob_size (blob, &blob);
2636 if (mono_assembly_try_decode_skip_verification (blob, blob + len)) {
2637 MONO_SECMAN_FLAG_SET_VALUE (assembly->skipverification, TRUE);
2642 MONO_SECMAN_FLAG_SET_VALUE (assembly->skipverification, FALSE);