2 * assembly.c: Routines for loading assemblies.
5 * Miguel de Icaza (miguel@ximian.com)
7 * (C) 2001 Ximian, Inc. http://www.ximian.com
19 #include "rawbuffer.h"
20 #include <mono/metadata/loader.h>
21 #include <mono/metadata/tabledefs.h>
22 #include <mono/metadata/metadata-internals.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/io-layer/io-layer.h>
27 #include <mono/utils/mono-uri.h>
28 #include <mono/metadata/mono-config.h>
29 #include <mono/utils/mono-digest.h>
30 #include <mono/utils/mono-logger.h>
31 #include <mono/metadata/reflection.h>
33 #ifndef PLATFORM_WIN32
34 #include <sys/types.h>
39 /* AssemblyVersionMap: an assembly name and the assembly version set on which it is based */
41 const char* assembly_name;
42 guint8 version_set_index;
45 /* the default search path is empty, the first slot is replaced with the computed value */
52 /* Contains the list of directories to be searched for assemblies (MONO_PATH) */
53 static char **assemblies_path = NULL;
55 /* Contains the list of directories that point to auxiliary GACs */
56 static char **extra_gac_paths = NULL;
58 /* The list of system assemblies what will be remapped to the running
59 * runtime version. WARNING: this list must be sorted.
61 static const AssemblyVersionMap framework_assemblies [] = {
63 {"Commons.Xml.Relaxng", 0},
70 {"Microsoft.VisualBasic", 1},
71 {"Microsoft.VisualC", 1},
73 {"Mono.CompilerServices.SymbolWriter", 0},
75 {"Mono.Data.SqliteClient", 0},
76 {"Mono.Data.SybaseClient", 0},
78 {"Mono.Data.TdsClient", 0},
79 {"Mono.GetOptions", 0},
83 {"Mono.Security.Win32", 0},
85 {"Novell.Directory.Ldap", 0},
89 {"System.Configuration.Install", 0},
91 {"System.Data.OracleClient", 0},
92 {"System.Data.SqlXml", 0},
94 {"System.DirectoryServices", 0},
95 {"System.Drawing", 0},
96 {"System.Drawing.Design", 0},
97 {"System.EnterpriseServices", 0},
98 {"System.Management", 0},
99 {"System.Messaging", 0},
100 {"System.Runtime.Remoting", 0},
101 {"System.Runtime.Serialization.Formatters.Soap", 0},
102 {"System.Security", 0},
103 {"System.ServiceProcess", 0},
105 {"System.Web.Mobile", 0},
106 {"System.Web.Services", 0},
107 {"System.Windows.Forms", 0},
113 * keeps track of loaded assemblies
115 static GList *loaded_assemblies = NULL;
116 static MonoAssembly *corlib;
118 /* This protects loaded_assemblies and image->references */
119 #define mono_assemblies_lock() EnterCriticalSection (&assemblies_mutex)
120 #define mono_assemblies_unlock() LeaveCriticalSection (&assemblies_mutex)
121 static CRITICAL_SECTION assemblies_mutex;
123 /* A hastable of thread->assembly list mappings */
124 static GHashTable *assemblies_loading;
126 /* A hashtable of reflection only load thread->assemblies mappings */
127 static GHashTable *assemblies_refonly_loading;
129 /* If defined, points to the bundled assembly information */
130 const MonoBundledAssembly **bundles;
132 /* Loaded assembly binding info */
133 static GSList *loaded_assembly_bindings = NULL;
136 mono_assembly_invoke_search_hook_internal (MonoAssemblyName *aname, gboolean refonly, gboolean postload);
139 encode_public_tok (const guchar *token, gint32 len)
141 const static gchar allowed [] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
145 res = g_malloc (len * 2 + 1);
146 for (i = 0; i < len; i++) {
147 res [i * 2] = allowed [token [i] >> 4];
148 res [i * 2 + 1] = allowed [token [i] & 0xF];
155 check_path_env (void)
158 char **splitted, **dest;
160 path = g_getenv ("MONO_PATH");
164 splitted = g_strsplit (path, G_SEARCHPATH_SEPARATOR_S, 1000);
166 g_strfreev (assemblies_path);
167 assemblies_path = dest = splitted;
175 if (g_getenv ("MONO_DEBUG") == NULL)
179 if (**splitted && !g_file_test (*splitted, G_FILE_TEST_IS_DIR))
180 g_warning ("'%s' in MONO_PATH doesn't exist or has wrong permissions.", *splitted);
187 check_extra_gac_path_env (void) {
189 char **splitted, **dest;
191 path = g_getenv ("MONO_GAC_PREFIX");
195 splitted = g_strsplit (path, G_SEARCHPATH_SEPARATOR_S, 1000);
197 g_strfreev (extra_gac_paths);
198 extra_gac_paths = dest = splitted;
206 if (g_getenv ("MONO_DEBUG") == NULL)
210 if (**splitted && !g_file_test (*splitted, G_FILE_TEST_IS_DIR))
211 g_warning ("'%s' in MONO_GAC_PATH doesn't exist or has wrong permissions.", *splitted);
218 assembly_binding_maps_name (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname)
220 if (strcmp (info->name, aname->name))
223 if (info->major != aname->major || info->minor != aname->minor)
226 if ((info->culture != NULL) != (aname->culture != NULL))
229 if (info->culture && strcmp (info->culture, aname->culture))
232 if (strcmp ((const char *)info->public_key_token, (const char *)aname->public_key_token))
239 mono_assembly_binding_info_free (MonoAssemblyBindingInfo *info)
242 g_free (info->culture);
246 get_publisher_policy_info (MonoImage *image, MonoAssemblyName *aname, MonoAssemblyBindingInfo *binding_info)
249 guint32 cols [MONO_MANIFEST_SIZE];
250 const gchar *filename;
251 gchar *subpath, *fullpath;
253 t = &image->tables [MONO_TABLE_MANIFESTRESOURCE];
254 /* MS Impl. accepts policy assemblies with more than
255 * one manifest resource, and only takes the first one */
257 binding_info->is_valid = FALSE;
261 mono_metadata_decode_row (t, 0, cols, MONO_MANIFEST_SIZE);
262 if ((cols [MONO_MANIFEST_IMPLEMENTATION] & MONO_IMPLEMENTATION_MASK) != MONO_IMPLEMENTATION_FILE) {
263 binding_info->is_valid = FALSE;
267 filename = mono_metadata_string_heap (image, cols [MONO_MANIFEST_NAME]);
268 g_assert (filename != NULL);
270 subpath = g_path_get_dirname (image->name);
271 fullpath = g_build_path (G_DIR_SEPARATOR_S, subpath, filename, NULL);
272 mono_config_parse_publisher_policy (fullpath, binding_info);
276 /* Define the optional elements/attributes before checking */
277 if (!binding_info->culture)
278 binding_info->culture = g_strdup ("");
280 /* Check that the most important elements/attributes exist */
281 if (!binding_info->name || !binding_info->public_key_token [0] || !binding_info->has_old_version_bottom ||
282 !binding_info->has_new_version || !assembly_binding_maps_name (binding_info, aname)) {
283 mono_assembly_binding_info_free (binding_info);
284 binding_info->is_valid = FALSE;
288 binding_info->is_valid = TRUE;
292 compare_versions (AssemblyVersionSet *v, MonoAssemblyName *aname)
294 if (v->major > aname->major)
296 else if (v->major < aname->major)
299 if (v->minor > aname->minor)
301 else if (v->minor < aname->minor)
304 if (v->build > aname->build)
306 else if (v->build < aname->build)
309 if (v->revision > aname->revision)
311 else if (v->revision < aname->revision)
318 check_policy_versions (MonoAssemblyBindingInfo *info, MonoAssemblyName *name)
323 /* If has_old_version_top doesn't exist, we don't have an interval */
324 if (!info->has_old_version_top) {
325 if (compare_versions (&info->old_version_bottom, name) == 0)
331 /* Check that the version defined by name is valid for the interval */
332 if (compare_versions (&info->old_version_top, name) < 0)
335 /* We should be greater or equal than the small version */
336 if (compare_versions (&info->old_version_bottom, name) > 0)
343 * mono_assembly_names_equal:
345 * @r: second assembly.
347 * Compares two MonoAssemblyNames and returns whether they are equal.
349 * This compares the names, the cultures, the release version and their
352 * Returns: TRUE if both assembly names are equal.
355 mono_assembly_names_equal (MonoAssemblyName *l, MonoAssemblyName *r)
357 if (!l->name || !r->name)
360 if (strcmp (l->name, r->name))
363 if (l->culture && r->culture && strcmp (l->culture, r->culture))
366 if (l->major != r->major || l->minor != r->minor ||
367 l->build != r->build || l->revision != r->revision)
368 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)))
371 if (!l->public_key_token [0] || !r->public_key_token [0])
374 if (strcmp ((char*)l->public_key_token, (char*)r->public_key_token))
381 search_loaded (MonoAssemblyName* aname, gboolean refonly)
387 ass = mono_assembly_invoke_search_hook_internal (aname, refonly, FALSE);
392 * The assembly might be under load by this thread. In this case, it is
393 * safe to return an incomplete instance to prevent loops.
395 loading = g_hash_table_lookup (refonly ? assemblies_refonly_loading : assemblies_loading, (gpointer)GetCurrentThreadId ());
396 for (tmp = loading; tmp; tmp = tmp->next) {
398 if (!mono_assembly_names_equal (aname, &ass->aname))
407 static MonoAssembly *
408 load_in_path (const char *basename, const char** search_path, MonoImageOpenStatus *status, MonoBoolean refonly)
412 MonoAssembly *result;
414 for (i = 0; search_path [i]; ++i) {
415 fullpath = g_build_filename (search_path [i], basename, NULL);
416 result = mono_assembly_open_full (fullpath, status, refonly);
425 * mono_assembly_setrootdir:
426 * @root_dir: The pathname of the root directory where we will locate assemblies
428 * This routine sets the internal default root directory for looking up
431 * This is used by Windows installations to compute dynamically the
432 * place where the Mono assemblies are located.
436 mono_assembly_setrootdir (const char *root_dir)
439 * Override the MONO_ASSEMBLIES directory configured at compile time.
441 /* Leak if called more than once */
442 default_path [0] = g_strdup (root_dir);
446 * mono_assembly_getrootdir:
448 * Obtains the root directory used for looking up assemblies.
450 * Returns: a string with the directory, this string should not be freed.
452 G_CONST_RETURN gchar *
453 mono_assembly_getrootdir (void)
455 return default_path [0];
460 * @assembly_dir: the base directory for assemblies
461 * @config_dir: the base directory for configuration files
463 * This routine is used internally and by developers embedding
464 * the runtime into their own applications.
466 * There are a number of cases to consider: Mono as a system-installed
467 * package that is available on the location preconfigured or Mono in
468 * a relocated location.
470 * If you are using a system-installed Mono, you can pass NULL
471 * to both parameters. If you are not, you should compute both
472 * directory values and call this routine.
474 * The values for a given PREFIX are:
476 * assembly_dir: PREFIX/lib
477 * config_dir: PREFIX/etc
479 * Notice that embedders that use Mono in a relocated way must
480 * compute the location at runtime, as they will be in control
481 * of where Mono is installed.
484 mono_set_dirs (const char *assembly_dir, const char *config_dir)
486 #if defined (MONO_ASSEMBLIES)
487 if (assembly_dir == NULL)
488 assembly_dir = MONO_ASSEMBLIES;
490 #if defined (MONO_CFG_DIR)
491 if (config_dir == NULL)
492 config_dir = MONO_CFG_DIR;
494 mono_assembly_setrootdir (assembly_dir);
495 mono_set_config_dir (config_dir);
498 #ifndef PLATFORM_WIN32
501 compute_base (char *path)
503 char *p = rindex (path, '/');
507 /* Not a well known Mono executable, we are embedded, cant guess the base */
508 if (strcmp (p, "/mono") && strcmp (p, "/monodis") && strcmp (p, "/mint") && strcmp (p, "/monodiet"))
512 p = rindex (path, '/');
516 if (strcmp (p, "/bin") != 0)
525 mono_set_dirs (MONO_ASSEMBLIES, MONO_CFG_DIR);
532 char *config, *lib, *mono;
536 * Only /usr prefix is treated specially
538 if (strncmp (exe, MONO_BINDIR, strlen (MONO_BINDIR)) == 0 || (base = compute_base (exe)) == NULL){
543 config = g_build_filename (base, "etc", NULL);
544 lib = g_build_filename (base, "lib", NULL);
545 mono = g_build_filename (lib, "mono/1.0", NULL);
546 if (stat (mono, &buf) == -1)
549 mono_set_dirs (lib, config);
557 #endif /* PLATFORM_WIN32 */
560 #undef GetModuleFileName
561 #define GetModuleFileName ceGetModuleFileNameA
563 DWORD ceGetModuleFileNameA(HMODULE hModule, char* lpFilename, DWORD nSize)
566 wchar_t* wbuff = (wchar_t*)LocalAlloc(LPTR, nSize*2);
567 res = GetModuleFileNameW(hModule, wbuff, nSize);
569 int len = wcslen(wbuff);
570 WideCharToMultiByte(CP_ACP, 0, wbuff, len, lpFilename, len, NULL, NULL);
580 * Registers the root directory for the Mono runtime, for Linux and Solaris 10,
581 * this auto-detects the prefix where Mono was installed.
584 mono_set_rootdir (void)
586 #ifdef PLATFORM_WIN32
587 gunichar2 moddir [MAXPATHLEN];
588 gchar *bindir, *installdir, *root, *utf8name, *config;
590 GetModuleFileNameW (NULL, moddir, MAXPATHLEN);
591 utf8name = g_utf16_to_utf8 (moddir, -1, NULL, NULL, NULL);
592 bindir = g_path_get_dirname (utf8name);
593 installdir = g_path_get_dirname (bindir);
594 root = g_build_path (G_DIR_SEPARATOR_S, installdir, "lib", NULL);
596 config = g_build_filename (root, "..", "etc", NULL);
597 mono_set_dirs (root, config);
610 s = readlink ("/proc/self/exe", buf, sizeof (buf)-1);
618 /* Solaris 10 style */
619 str = g_strdup_printf ("/proc/%d/path/a.out", getpid ());
620 s = readlink (str, buf, sizeof (buf)-1);
632 * mono_assemblies_init:
634 * Initialize global variables used by this module.
637 mono_assemblies_init (void)
640 * Initialize our internal paths if we have not been initialized yet.
641 * This happens when embedders use Mono.
643 if (mono_assembly_getrootdir () == NULL)
647 check_extra_gac_path_env ();
649 InitializeCriticalSection (&assemblies_mutex);
651 assemblies_loading = g_hash_table_new (NULL, NULL);
652 assemblies_refonly_loading = g_hash_table_new (NULL, NULL);
656 mono_assembly_fill_assembly_name (MonoImage *image, MonoAssemblyName *aname)
658 MonoTableInfo *t = &image->tables [MONO_TABLE_ASSEMBLY];
659 guint32 cols [MONO_ASSEMBLY_SIZE];
664 mono_metadata_decode_row (t, 0, cols, MONO_ASSEMBLY_SIZE);
667 aname->hash_value = NULL;
668 aname->name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLY_NAME]);
669 aname->culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLY_CULTURE]);
670 aname->flags = cols [MONO_ASSEMBLY_FLAGS];
671 aname->major = cols [MONO_ASSEMBLY_MAJOR_VERSION];
672 aname->minor = cols [MONO_ASSEMBLY_MINOR_VERSION];
673 aname->build = cols [MONO_ASSEMBLY_BUILD_NUMBER];
674 aname->revision = cols [MONO_ASSEMBLY_REV_NUMBER];
675 aname->hash_alg = cols [MONO_ASSEMBLY_HASH_ALG];
676 if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
677 guchar* token = g_malloc (8);
682 pkey = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
683 len = mono_metadata_decode_blob_size (pkey, &pkey);
684 aname->public_key = (guchar*)pkey;
686 mono_digest_get_public_token (token, aname->public_key, len);
687 encoded = encode_public_tok (token, 8);
688 g_strlcpy ((char*)aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
694 aname->public_key = NULL;
695 memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
698 if (cols [MONO_ASSEMBLY_PUBLIC_KEY]) {
699 aname->public_key = (guchar*)mono_metadata_blob_heap (image, cols [MONO_ASSEMBLY_PUBLIC_KEY]);
702 aname->public_key = 0;
708 * mono_stringify_assembly_name:
709 * @aname: the assembly name.
711 * Convert @aname into its string format. The returned string is dynamically
712 * allocated and should be freed by the caller.
714 * Returns: a newly allocated string with a string representation of
718 mono_stringify_assembly_name (MonoAssemblyName *aname)
720 return g_strdup_printf (
721 "%s, Version=%d.%d.%d.%d, Culture=%s%s%s",
723 aname->major, aname->minor, aname->build, aname->revision,
724 aname->culture && *aname->culture? aname->culture: "neutral",
725 aname->public_key_token [0] ? ", PublicKeyToken=" : "",
726 aname->public_key_token [0] ? (char *)aname->public_key_token : "");
730 assemblyref_public_tok (MonoImage *image, guint32 key_index, guint32 flags)
732 const gchar *public_tok;
735 public_tok = mono_metadata_blob_heap (image, key_index);
736 len = mono_metadata_decode_blob_size (public_tok, &public_tok);
738 if (flags & ASSEMBLYREF_FULL_PUBLIC_KEY_FLAG) {
740 mono_digest_get_public_token (token, (guchar*)public_tok, len);
741 return encode_public_tok (token, 8);
744 return encode_public_tok ((guchar*)public_tok, len);
748 * mono_assembly_addref:
749 * @assemnly: the assembly to reference
751 * This routine increments the reference count on a MonoAssembly.
752 * The reference count is reduced every time the method mono_assembly_close() is
756 mono_assembly_addref (MonoAssembly *assembly)
758 InterlockedIncrement (&assembly->ref_count);
761 static MonoAssemblyName *
762 mono_assembly_remap_version (MonoAssemblyName *aname, MonoAssemblyName *dest_aname)
764 const MonoRuntimeInfo *current_runtime;
765 int pos, first, last;
767 if (aname->name == NULL) return aname;
768 current_runtime = mono_get_runtime_info ();
771 last = G_N_ELEMENTS (framework_assemblies) - 1;
773 while (first <= last) {
775 pos = first + (last - first) / 2;
776 res = strcmp (aname->name, framework_assemblies[pos].assembly_name);
778 const AssemblyVersionSet* vset;
779 int index = framework_assemblies[pos].version_set_index;
780 g_assert (index < G_N_ELEMENTS (current_runtime->version_sets));
781 vset = ¤t_runtime->version_sets [index];
783 if (aname->major == vset->major && aname->minor == vset->minor &&
784 aname->build == vset->build && aname->revision == vset->revision)
787 if ((aname->major | aname->minor | aname->build | aname->revision) != 0)
788 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_ASSEMBLY,
789 "The request to load the assembly %s v%d.%d.%d.%d was remapped to v%d.%d.%d.%d",
791 aname->major, aname->minor, aname->build, aname->revision,
792 vset->major, vset->minor, vset->build, vset->revision
795 memcpy (dest_aname, aname, sizeof(MonoAssemblyName));
796 dest_aname->major = vset->major;
797 dest_aname->minor = vset->minor;
798 dest_aname->build = vset->build;
799 dest_aname->revision = vset->revision;
801 } else if (res < 0) {
811 * mono_assembly_get_assemblyref:
813 * Fill out ANAME with the assembly name of the INDEXth assembly reference in IMAGE.
816 mono_assembly_get_assemblyref (MonoImage *image, int index, MonoAssemblyName *aname)
819 guint32 cols [MONO_ASSEMBLYREF_SIZE];
822 t = &image->tables [MONO_TABLE_ASSEMBLYREF];
824 mono_metadata_decode_row (t, index, cols, MONO_ASSEMBLYREF_SIZE);
826 hash = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLYREF_HASH_VALUE]);
827 aname->hash_len = mono_metadata_decode_blob_size (hash, &hash);
828 aname->hash_value = hash;
829 aname->name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_NAME]);
830 aname->culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_CULTURE]);
831 aname->flags = cols [MONO_ASSEMBLYREF_FLAGS];
832 aname->major = cols [MONO_ASSEMBLYREF_MAJOR_VERSION];
833 aname->minor = cols [MONO_ASSEMBLYREF_MINOR_VERSION];
834 aname->build = cols [MONO_ASSEMBLYREF_BUILD_NUMBER];
835 aname->revision = cols [MONO_ASSEMBLYREF_REV_NUMBER];
837 if (cols [MONO_ASSEMBLYREF_PUBLIC_KEY]) {
838 gchar *token = assemblyref_public_tok (image, cols [MONO_ASSEMBLYREF_PUBLIC_KEY], aname->flags);
839 g_strlcpy ((char*)aname->public_key_token, token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
842 memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
847 mono_assembly_load_reference (MonoImage *image, int index)
849 MonoAssembly *reference;
850 MonoAssemblyName aname;
851 MonoImageOpenStatus status;
854 * image->references is shared between threads, so we need to access
855 * it inside a critical section.
857 mono_assemblies_lock ();
858 if (!image->references)
859 mono_assembly_load_references (image, &status);
860 reference = image->references [index];
861 mono_assemblies_unlock ();
865 mono_assembly_get_assemblyref (image, index, &aname);
867 if (image->assembly && image->assembly->ref_only) {
868 /* We use the loaded corlib */
869 if (!strcmp (aname.name, "mscorlib"))
870 reference = mono_assembly_load_full (&aname, image->assembly->basedir, &status, FALSE);
872 reference = mono_assembly_loaded_full (&aname, TRUE);
874 * Here we must advice that the error was due to
875 * a non loaded reference using the ReflectionOnly api
878 reference = REFERENCE_MISSING;
880 reference = mono_assembly_load (&aname, image->assembly? image->assembly->basedir: NULL, &status);
882 if (reference == NULL){
883 char *extra_msg = g_strdup ("");
885 if (status == MONO_IMAGE_ERROR_ERRNO && errno == ENOENT) {
886 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->basedir);
887 } else if (status == MONO_IMAGE_ERROR_ERRNO) {
888 extra_msg = g_strdup_printf ("System error: %s\n", strerror (errno));
889 } else if (status == MONO_IMAGE_MISSING_ASSEMBLYREF) {
890 extra_msg = g_strdup ("Cannot find an assembly referenced from this one.\n");
891 } else if (status == MONO_IMAGE_IMAGE_INVALID) {
892 extra_msg = g_strdup ("The file exists but is not a valid assembly.\n");
895 g_warning ("The following assembly referenced from %s could not be loaded:\n"
896 " Assembly: %s (assemblyref_index=%d)\n"
897 " Version: %d.%d.%d.%d\n"
898 " Public Key: %s\n%s",
899 image->name, aname.name, index,
900 aname.major, aname.minor, aname.build, aname.revision,
901 strlen ((char*)aname.public_key_token) == 0 ? "(none)" : (char*)aname.public_key_token, extra_msg);
905 mono_assemblies_lock ();
906 if (reference == NULL) {
907 /* Flag as not found */
908 reference = REFERENCE_MISSING;
911 if (!image->references [index]) {
912 if (reference != REFERENCE_MISSING){
913 mono_assembly_addref (reference);
915 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly Ref addref %s %p -> %s %p: %d\n",
916 image->assembly->aname.name, image->assembly, reference->aname.name, reference, reference->ref_count);
919 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Failed to load assembly %s %p\n",
920 image->assembly->aname.name, image->assembly);
923 image->references [index] = reference;
925 mono_assemblies_unlock ();
927 if (image->references [index] != reference) {
928 /* Somebody loaded it before us */
929 mono_assembly_close (reference);
934 mono_assembly_load_references (MonoImage *image, MonoImageOpenStatus *status)
938 *status = MONO_IMAGE_OK;
940 t = &image->tables [MONO_TABLE_ASSEMBLYREF];
942 image->references = g_new0 (MonoAssembly *, t->rows + 1);
945 typedef struct AssemblyLoadHook AssemblyLoadHook;
946 struct AssemblyLoadHook {
947 AssemblyLoadHook *next;
948 MonoAssemblyLoadFunc func;
952 AssemblyLoadHook *assembly_load_hook = NULL;
955 mono_assembly_invoke_load_hook (MonoAssembly *ass)
957 AssemblyLoadHook *hook;
959 for (hook = assembly_load_hook; hook; hook = hook->next) {
960 hook->func (ass, hook->user_data);
965 mono_install_assembly_load_hook (MonoAssemblyLoadFunc func, gpointer user_data)
967 AssemblyLoadHook *hook;
969 g_return_if_fail (func != NULL);
971 hook = g_new0 (AssemblyLoadHook, 1);
973 hook->user_data = user_data;
974 hook->next = assembly_load_hook;
975 assembly_load_hook = hook;
979 free_assembly_load_hooks (void)
981 AssemblyLoadHook *hook, *next;
983 for (hook = assembly_load_hook; hook; hook = next) {
989 typedef struct AssemblySearchHook AssemblySearchHook;
990 struct AssemblySearchHook {
991 AssemblySearchHook *next;
992 MonoAssemblySearchFunc func;
998 AssemblySearchHook *assembly_search_hook = NULL;
1000 static MonoAssembly*
1001 mono_assembly_invoke_search_hook_internal (MonoAssemblyName *aname, gboolean refonly, gboolean postload)
1003 AssemblySearchHook *hook;
1005 for (hook = assembly_search_hook; hook; hook = hook->next) {
1006 if ((hook->refonly == refonly) && (hook->postload == postload)) {
1007 MonoAssembly *ass = hook->func (aname, hook->user_data);
1017 mono_assembly_invoke_search_hook (MonoAssemblyName *aname)
1019 return mono_assembly_invoke_search_hook_internal (aname, FALSE, FALSE);
1023 mono_install_assembly_search_hook_internal (MonoAssemblySearchFunc func, gpointer user_data, gboolean refonly, gboolean postload)
1025 AssemblySearchHook *hook;
1027 g_return_if_fail (func != NULL);
1029 hook = g_new0 (AssemblySearchHook, 1);
1031 hook->user_data = user_data;
1032 hook->refonly = refonly;
1033 hook->postload = postload;
1034 hook->next = assembly_search_hook;
1035 assembly_search_hook = hook;
1039 mono_install_assembly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1041 mono_install_assembly_search_hook_internal (func, user_data, FALSE, FALSE);
1045 free_assembly_search_hooks (void)
1047 AssemblySearchHook *hook, *next;
1049 for (hook = assembly_search_hook; hook; hook = next) {
1056 mono_install_assembly_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1058 mono_install_assembly_search_hook_internal (func, user_data, TRUE, FALSE);
1062 mono_install_assembly_postload_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1064 mono_install_assembly_search_hook_internal (func, user_data, FALSE, TRUE);
1068 mono_install_assembly_postload_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
1070 mono_install_assembly_search_hook_internal (func, user_data, TRUE, TRUE);
1073 typedef struct AssemblyPreLoadHook AssemblyPreLoadHook;
1074 struct AssemblyPreLoadHook {
1075 AssemblyPreLoadHook *next;
1076 MonoAssemblyPreLoadFunc func;
1080 static AssemblyPreLoadHook *assembly_preload_hook = NULL;
1081 static AssemblyPreLoadHook *assembly_refonly_preload_hook = NULL;
1083 static MonoAssembly *
1084 invoke_assembly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
1086 AssemblyPreLoadHook *hook;
1087 MonoAssembly *assembly;
1089 for (hook = assembly_preload_hook; hook; hook = hook->next) {
1090 assembly = hook->func (aname, assemblies_path, hook->user_data);
1091 if (assembly != NULL)
1098 static MonoAssembly *
1099 invoke_assembly_refonly_preload_hook (MonoAssemblyName *aname, gchar **assemblies_path)
1101 AssemblyPreLoadHook *hook;
1102 MonoAssembly *assembly;
1104 for (hook = assembly_refonly_preload_hook; hook; hook = hook->next) {
1105 assembly = hook->func (aname, assemblies_path, hook->user_data);
1106 if (assembly != NULL)
1114 mono_install_assembly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
1116 AssemblyPreLoadHook *hook;
1118 g_return_if_fail (func != NULL);
1120 hook = g_new0 (AssemblyPreLoadHook, 1);
1122 hook->user_data = user_data;
1123 hook->next = assembly_preload_hook;
1124 assembly_preload_hook = hook;
1128 mono_install_assembly_refonly_preload_hook (MonoAssemblyPreLoadFunc func, gpointer user_data)
1130 AssemblyPreLoadHook *hook;
1132 g_return_if_fail (func != NULL);
1134 hook = g_new0 (AssemblyPreLoadHook, 1);
1136 hook->user_data = user_data;
1137 hook->next = assembly_refonly_preload_hook;
1138 assembly_refonly_preload_hook = hook;
1142 free_assembly_preload_hooks (void)
1144 AssemblyPreLoadHook *hook, *next;
1146 for (hook = assembly_preload_hook; hook; hook = next) {
1151 for (hook = assembly_refonly_preload_hook; hook; hook = next) {
1158 absolute_dir (const gchar *filename)
1169 if (g_path_is_absolute (filename))
1170 return g_path_get_dirname (filename);
1172 cwd = g_get_current_dir ();
1173 mixed = g_build_filename (cwd, filename, NULL);
1174 parts = g_strsplit (mixed, G_DIR_SEPARATOR_S, 0);
1179 for (i = 0; (part = parts [i]) != NULL; i++) {
1180 if (!strcmp (part, "."))
1183 if (!strcmp (part, "..")) {
1184 if (list && list->next) /* Don't remove root */
1185 list = g_list_delete_link (list, list);
1187 list = g_list_prepend (list, part);
1191 result = g_string_new ("");
1192 list = g_list_reverse (list);
1194 /* Ignores last data pointer, which should be the filename */
1195 for (tmp = list; tmp && tmp->next != NULL; tmp = tmp->next){
1197 g_string_append_printf (result, "%s%c", (char *) tmp->data,
1202 g_string_free (result, FALSE);
1207 return g_strdup (".");
1214 * mono_assembly_open_from_bundle:
1215 * @filename: Filename requested
1216 * @status: return value
1218 * This routine tries to open the assembly specified by `filename' from the
1219 * defined bundles, if found, returns the MonoImage for it, if not found
1223 mono_assembly_open_from_bundle (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
1227 MonoImage *image = NULL;
1230 * we do a very simple search for bundled assemblies: it's not a general
1231 * purpose assembly loading mechanism.
1237 name = g_path_get_basename (filename);
1239 mono_assemblies_lock ();
1240 for (i = 0; !image && bundles [i]; ++i) {
1241 if (strcmp (bundles [i]->name, name) == 0) {
1242 image = mono_image_open_from_data_full ((char*)bundles [i]->data, bundles [i]->size, FALSE, status, refonly);
1246 mono_assemblies_unlock ();
1249 mono_image_addref (image);
1256 mono_assembly_open_full (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
1260 MonoImageOpenStatus def_status;
1263 g_return_val_if_fail (filename != NULL, NULL);
1266 status = &def_status;
1267 *status = MONO_IMAGE_OK;
1269 if (strncmp (filename, "file://", 7) == 0) {
1270 GError *error = NULL;
1271 gchar *uri = (gchar *) filename;
1275 * MS allows file://c:/... and fails on file://localhost/c:/...
1276 * They also throw an IndexOutOfRangeException if "file://"
1279 uri = g_strdup_printf ("file:///%s", uri + 7);
1282 uri = mono_escape_uri_string (tmpuri);
1283 fname = g_filename_from_uri (uri, NULL, &error);
1286 if (tmpuri != filename)
1289 if (error != NULL) {
1290 g_warning ("%s\n", error->message);
1291 g_error_free (error);
1292 fname = g_strdup (filename);
1295 fname = g_strdup (filename);
1298 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1299 "Assembly Loader probing location: '%s'.", filename);
1302 if (bundles != NULL)
1303 image = mono_assembly_open_from_bundle (fname, status, refonly);
1306 mono_assemblies_lock ();
1307 image = mono_image_open_full (fname, status, refonly);
1308 mono_assemblies_unlock ();
1312 if (*status == MONO_IMAGE_OK)
1313 *status = MONO_IMAGE_ERROR_ERRNO;
1318 if (image->assembly) {
1319 /* Already loaded by another appdomain */
1320 mono_assembly_invoke_load_hook (image->assembly);
1321 mono_image_close (image);
1323 return image->assembly;
1326 ass = mono_assembly_load_from_full (image, fname, status, refonly);
1329 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
1330 "Assembly Loader loaded assembly from location: '%s'.", filename);
1332 mono_config_for_assembly (ass->image);
1335 /* Clear the reference added by mono_image_open */
1336 mono_image_close (image);
1344 * load_friend_assemblies:
1347 * Load the list of friend assemblies that are allowed to access
1348 * the assembly's internal types and members. They are stored as assembly
1349 * names in custom attributes.
1352 load_friend_assemblies (MonoAssembly* ass)
1355 MonoCustomAttrInfo* attrs = mono_custom_attrs_from_assembly (ass);
1358 for (i = 0; i < attrs->num_attrs; ++i) {
1359 MonoCustomAttrEntry *attr = &attrs->attrs [i];
1360 MonoAssemblyName *aname;
1363 /* Do some sanity checking */
1364 if (!attr->ctor || attr->ctor->klass != mono_defaults.internals_visible_class)
1366 if (attr->data_size < 4)
1368 data = (const char*)attr->data;
1369 /* 0xFF means null string, see custom attr format */
1370 if (data [0] != 1 || data [1] != 0 || (data [2] & 0xFF) == 0xFF)
1372 slen = mono_metadata_decode_value (data + 2, &data);
1373 aname = g_new0 (MonoAssemblyName, 1);
1374 /*g_print ("friend ass: %s\n", data);*/
1375 if (mono_assembly_name_parse_full (data, aname, TRUE, NULL)) {
1376 ass->friend_assembly_names = g_slist_prepend (ass->friend_assembly_names, aname);
1381 mono_custom_attrs_free (attrs);
1385 * mono_assembly_open:
1386 * @filename: Opens the assembly pointed out by this name
1387 * @status: where a status code can be returned
1389 * mono_assembly_open opens the PE-image pointed by @filename, and
1390 * loads any external assemblies referenced by it.
1392 * Return: a pointer to the MonoAssembly if @filename contains a valid
1393 * assembly or NULL on error. Details about the error are stored in the
1397 mono_assembly_open (const char *filename, MonoImageOpenStatus *status)
1399 return mono_assembly_open_full (filename, status, FALSE);
1403 mono_assembly_load_from_full (MonoImage *image, const char*fname,
1404 MonoImageOpenStatus *status, gboolean refonly)
1406 MonoAssembly *ass, *ass2;
1409 GHashTable *ass_loading;
1411 if (!image->tables [MONO_TABLE_ASSEMBLY].rows) {
1412 /* 'image' doesn't have a manifest -- maybe someone is trying to Assembly.Load a .netmodule */
1413 *status = MONO_IMAGE_IMAGE_INVALID;
1418 #if defined (PLATFORM_WIN32)
1423 tmp_fn = g_strdup (fname);
1424 for (i = strlen (tmp_fn) - 1; i >= 0; i--) {
1425 if (tmp_fn [i] == '/')
1429 base_dir = absolute_dir (tmp_fn);
1433 base_dir = absolute_dir (fname);
1437 * To avoid deadlocks and scalability problems, we load assemblies outside
1438 * the assembly lock. This means that multiple threads might try to load
1439 * the same assembly at the same time. The first one to load it completely
1440 * "wins", the other threads free their copy and use the one loaded by
1441 * the winning thread.
1445 * Create assembly struct, and enter it into the assembly cache
1447 ass = g_new0 (MonoAssembly, 1);
1448 ass->basedir = base_dir;
1449 ass->ref_only = refonly;
1452 /* Add a non-temporary reference because of ass->image */
1453 mono_image_addref (image);
1455 mono_assembly_fill_assembly_name (image, &ass->aname);
1457 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);
1460 * Atomically search the loaded list and add ourselves to it if necessary.
1462 mono_assemblies_lock ();
1463 if (ass->aname.name) {
1464 /* avoid loading the same assembly twice for now... */
1465 ass2 = search_loaded (&ass->aname, refonly);
1467 mono_assemblies_unlock ();
1470 mono_image_close (image);
1471 *status = MONO_IMAGE_OK;
1475 ass_loading = refonly ? assemblies_refonly_loading : assemblies_loading;
1476 loading = g_hash_table_lookup (ass_loading, (gpointer)GetCurrentThreadId ());
1477 loading = g_list_prepend (loading, ass);
1478 g_hash_table_insert (ass_loading, (gpointer)GetCurrentThreadId (), loading);
1479 mono_assemblies_unlock ();
1481 g_assert (image->assembly == NULL);
1482 image->assembly = ass;
1484 mono_assembly_load_references (image, status);
1486 mono_assemblies_lock ();
1488 loading = g_hash_table_lookup (ass_loading, (gpointer)GetCurrentThreadId ());
1489 loading = g_list_remove (loading, ass);
1490 if (loading == NULL)
1491 /* Prevent memory leaks */
1492 g_hash_table_remove (ass_loading, (gpointer)GetCurrentThreadId ());
1494 g_hash_table_insert (ass_loading, (gpointer)GetCurrentThreadId (), loading);
1495 if (*status != MONO_IMAGE_OK) {
1496 mono_assemblies_unlock ();
1497 mono_assembly_close (ass);
1501 if (ass->aname.name) {
1502 ass2 = search_loaded (&ass->aname, refonly);
1504 /* Somebody else has loaded the assembly before us */
1505 mono_assemblies_unlock ();
1506 mono_assembly_close (ass);
1511 loaded_assemblies = g_list_prepend (loaded_assemblies, ass);
1512 if (mono_defaults.internals_visible_class)
1513 load_friend_assemblies (ass);
1514 mono_assemblies_unlock ();
1516 mono_assembly_invoke_load_hook (ass);
1522 mono_assembly_load_from (MonoImage *image, const char *fname,
1523 MonoImageOpenStatus *status)
1525 return mono_assembly_load_from_full (image, fname, status, FALSE);
1529 * mono_assembly_name_free:
1530 * @aname: assembly name to free
1532 * Frees the provided assembly name object.
1533 * (it does not frees the object itself, only the name members).
1536 mono_assembly_name_free (MonoAssemblyName *aname)
1541 g_free ((void *) aname->name);
1542 g_free ((void *) aname->culture);
1543 g_free ((void *) aname->hash_value);
1547 parse_public_key (const gchar *key, gchar** pubkey)
1550 gchar header [16], val, *arr;
1551 gint i, j, offset, bitlen, keylen, pkeylen;
1553 keylen = strlen (key) >> 1;
1557 val = g_ascii_xdigit_value (key [0]) << 4;
1558 val |= g_ascii_xdigit_value (key [1]);
1563 val = g_ascii_xdigit_value (key [24]);
1564 val |= g_ascii_xdigit_value (key [25]);
1576 /* We need the first 16 bytes
1577 * to check whether this key is valid or not */
1578 pkeylen = strlen (pkey) >> 1;
1582 for (i = 0, j = 0; i < 16; i++) {
1583 header [i] = g_ascii_xdigit_value (pkey [j++]) << 4;
1584 header [i] |= g_ascii_xdigit_value (pkey [j++]);
1587 if (header [0] != 0x06 || /* PUBLICKEYBLOB (0x06) */
1588 header [1] != 0x02 || /* Version (0x02) */
1589 header [2] != 0x00 || /* Reserved (word) */
1590 header [3] != 0x00 ||
1591 (guint)(read32 (header + 8)) != 0x31415352) /* DWORD magic = RSA1 */
1594 /* Based on this length, we _should_ be able to know if the length is right */
1595 bitlen = read32 (header + 12) >> 3;
1596 if ((bitlen + 16 + 4) != pkeylen)
1599 /* Encode the size of the blob */
1601 if (keylen <= 127) {
1602 arr = g_malloc (keylen + 1);
1603 arr [offset++] = keylen;
1605 arr = g_malloc (keylen + 2);
1606 arr [offset++] = 0x80; /* 10bs */
1607 arr [offset++] = keylen;
1610 for (i = offset, j = 0; i < keylen + offset; i++) {
1611 arr [i] = g_ascii_xdigit_value (key [j++]) << 4;
1612 arr [i] |= g_ascii_xdigit_value (key [j++]);
1621 build_assembly_name (const char *name, const char *version, const char *culture, const char *token, const char *key, MonoAssemblyName *aname, gboolean save_public_key)
1623 gint major, minor, build, revision;
1626 gchar *pkey, *pkeyptr, *encoded, tok [8];
1628 memset (aname, 0, sizeof (MonoAssemblyName));
1631 version_parts = sscanf (version, "%u.%u.%u.%u", &major, &minor, &build, &revision);
1632 if (version_parts < 2 || version_parts > 4)
1635 /* FIXME: we should set build & revision to -1 (instead of 0)
1636 if these are not set in the version string. That way, later on,
1637 we can still determine if these were specified. */
1638 aname->major = major;
1639 aname->minor = minor;
1640 if (version_parts >= 3)
1641 aname->build = build;
1644 if (version_parts == 4)
1645 aname->revision = revision;
1647 aname->revision = 0;
1650 aname->name = g_strdup (name);
1653 if (g_ascii_strcasecmp (culture, "neutral") == 0)
1654 aname->culture = g_strdup ("");
1656 aname->culture = g_strdup (culture);
1659 if (token && strncmp (token, "null", 4) != 0) {
1660 char *lower = g_ascii_strdown (token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1661 g_strlcpy ((char*)aname->public_key_token, lower, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1665 if (key && strncmp (key, "null", 4) != 0) {
1666 if (!parse_public_key (key, &pkey)) {
1667 mono_assembly_name_free (aname);
1671 len = mono_metadata_decode_blob_size ((const gchar *) pkey, (const gchar **) &pkeyptr);
1672 // We also need to generate the key token
1673 mono_digest_get_public_token ((guchar*) tok, (guint8*) pkeyptr, len);
1674 encoded = encode_public_tok ((guchar*) tok, 8);
1675 g_strlcpy ((gchar*)aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
1678 if (save_public_key)
1679 aname->public_key = (guint8*) pkey;
1688 parse_assembly_directory_name (const char *name, const char *dirname, MonoAssemblyName *aname)
1693 parts = g_strsplit (dirname, "_", 3);
1694 if (!parts || !parts[0] || !parts[1] || !parts[2]) {
1699 res = build_assembly_name (name, parts[0], parts[1], parts[2], NULL, aname, FALSE);
1705 mono_assembly_name_parse_full (const char *name, MonoAssemblyName *aname, gboolean save_public_key, gboolean *is_version_defined)
1708 gchar *version = NULL;
1709 gchar *culture = NULL;
1710 gchar *token = NULL;
1716 gboolean version_defined;
1718 if (!is_version_defined)
1719 is_version_defined = &version_defined;
1720 *is_version_defined = FALSE;
1722 parts = tmp = g_strsplit (name, ",", 4);
1723 if (!tmp || !*tmp) {
1728 dllname = g_strstrip (*tmp);
1733 value = g_strstrip (*tmp);
1734 if (!g_ascii_strncasecmp (value, "Version=", 8)) {
1735 *is_version_defined = TRUE;
1736 version = g_strstrip (value + 8);
1741 if (!g_ascii_strncasecmp (value, "Culture=", 8)) {
1742 culture = g_strstrip (value + 8);
1747 if (!g_ascii_strncasecmp (value, "PublicKeyToken=", 15)) {
1748 token = g_strstrip (value + 15);
1753 if (!g_ascii_strncasecmp (value, "PublicKey=", 10)) {
1754 key = g_strstrip (value + 10);
1759 if (!g_ascii_strncasecmp (value, "ProcessorArchitecture=", 22)) {
1760 /* this is ignored for now, until we can change MonoAssemblyName */
1769 res = build_assembly_name (dllname, version, culture, token, key, aname, save_public_key);
1775 * mono_assembly_name_parse:
1776 * @name: name to parse
1777 * @aname: the destination assembly name
1779 * Parses an assembly qualified type name and assigns the name,
1780 * version, culture and token to the provided assembly name object.
1782 * Returns: true if the name could be parsed.
1785 mono_assembly_name_parse (const char *name, MonoAssemblyName *aname)
1787 return mono_assembly_name_parse_full (name, aname, FALSE, NULL);
1790 static MonoAssembly*
1791 probe_for_partial_name (const char *basepath, const char *fullname, MonoAssemblyName *aname, MonoImageOpenStatus *status)
1793 gchar *fullpath = NULL;
1795 const char* direntry;
1796 MonoAssemblyName gac_aname;
1797 gint major=-1, minor=0, build=0, revision=0;
1798 gboolean exact_version;
1800 dirhandle = g_dir_open (basepath, 0, NULL);
1804 exact_version = (aname->major | aname->minor | aname->build | aname->revision) != 0;
1806 while ((direntry = g_dir_read_name (dirhandle))) {
1807 gboolean match = TRUE;
1809 parse_assembly_directory_name (aname->name, direntry, &gac_aname);
1811 if (aname->culture != NULL && strcmp (aname->culture, gac_aname.culture) != 0)
1814 if (match && strlen ((char*)aname->public_key_token) > 0 &&
1815 strcmp ((char*)aname->public_key_token, (char*)gac_aname.public_key_token) != 0)
1819 if (exact_version) {
1820 match = (aname->major == gac_aname.major && aname->minor == gac_aname.minor &&
1821 aname->build == gac_aname.build && aname->revision == gac_aname.revision);
1823 else if (gac_aname.major < major)
1825 else if (gac_aname.major == major) {
1826 if (gac_aname.minor < minor)
1828 else if (gac_aname.minor == minor) {
1829 if (gac_aname.build < build)
1831 else if (gac_aname.build == build && gac_aname.revision <= revision)
1838 major = gac_aname.major;
1839 minor = gac_aname.minor;
1840 build = gac_aname.build;
1841 revision = gac_aname.revision;
1843 fullpath = g_build_path (G_DIR_SEPARATOR_S, basepath, direntry, fullname, NULL);
1846 mono_assembly_name_free (&gac_aname);
1849 g_dir_close (dirhandle);
1851 if (fullpath == NULL)
1854 MonoAssembly *res = mono_assembly_open (fullpath, status);
1861 mono_assembly_load_with_partial_name (const char *name, MonoImageOpenStatus *status)
1864 MonoAssemblyName *aname, base_name, maped_aname;
1865 gchar *fullname, *gacpath;
1868 memset (&base_name, 0, sizeof (MonoAssemblyName));
1871 if (!mono_assembly_name_parse (name, aname))
1875 * If no specific version has been requested, make sure we load the
1876 * correct version for system assemblies.
1878 if ((aname->major | aname->minor | aname->build | aname->revision) == 0)
1879 aname = mono_assembly_remap_version (aname, &maped_aname);
1881 res = mono_assembly_loaded (aname);
1883 mono_assembly_name_free (aname);
1887 res = invoke_assembly_preload_hook (aname, assemblies_path);
1889 res->in_gac = FALSE;
1890 mono_assembly_name_free (aname);
1894 fullname = g_strdup_printf ("%s.dll", aname->name);
1896 if (extra_gac_paths) {
1897 paths = extra_gac_paths;
1898 while (!res && *paths) {
1899 gacpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", aname->name, NULL);
1900 res = probe_for_partial_name (gacpath, fullname, aname, status);
1909 mono_assembly_name_free (aname);
1913 gacpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (), "mono", "gac", aname->name, NULL);
1914 res = probe_for_partial_name (gacpath, fullname, aname, status);
1921 mono_assembly_name_free (aname);
1927 mono_assembly_load_publisher_policy (MonoAssemblyName *aname)
1930 gchar *filename, *pname, *name, *culture, *version, *fullpath, *subpath;
1934 if (strstr (aname->name, ".dll")) {
1935 len = strlen (aname->name) - 4;
1936 name = g_malloc (len);
1937 strncpy (name, aname->name, len);
1939 name = g_strdup (aname->name);
1941 if (aname->culture) {
1942 culture = g_strdup (aname->culture);
1943 g_strdown (culture);
1945 culture = g_strdup ("");
1947 pname = g_strdup_printf ("policy.%d.%d.%s", aname->major, aname->minor, name);
1948 version = g_strdup_printf ("0.0.0.0_%s_%s", culture, aname->public_key_token);
1952 filename = g_strconcat (pname, ".dll", NULL);
1953 subpath = g_build_path (G_DIR_SEPARATOR_S, pname, version, filename, NULL);
1959 if (extra_gac_paths) {
1960 paths = extra_gac_paths;
1961 while (!image && *paths) {
1962 fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths,
1963 "lib", "mono", "gac", subpath, NULL);
1964 image = mono_image_open (fullpath, NULL);
1975 fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
1976 "mono", "gac", subpath, NULL);
1977 image = mono_image_open (fullpath, NULL);
1984 static MonoAssemblyName*
1985 mono_assembly_bind_version (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname, MonoAssemblyName *dest_name)
1987 memcpy (dest_name, aname, sizeof (MonoAssemblyName));
1988 dest_name->major = info->new_version.major;
1989 dest_name->minor = info->new_version.minor;
1990 dest_name->build = info->new_version.build;
1991 dest_name->revision = info->new_version.revision;
1996 /* LOCKING: Assumes that we are already locked */
1997 static MonoAssemblyBindingInfo*
1998 search_binding_loaded (MonoAssemblyName *aname)
2002 for (tmp = loaded_assembly_bindings; tmp; tmp = tmp->next) {
2003 MonoAssemblyBindingInfo *info = tmp->data;
2004 if (assembly_binding_maps_name (info, aname))
2011 static MonoAssemblyName*
2012 mono_assembly_apply_binding (MonoAssemblyName *aname, MonoAssemblyName *dest_name)
2014 MonoAssemblyBindingInfo *info, *info2;
2017 if (aname->public_key_token [0] == 0)
2020 mono_loader_lock ();
2021 info = search_binding_loaded (aname);
2022 mono_loader_unlock ();
2024 if (!check_policy_versions (info, aname))
2027 mono_assembly_bind_version (info, aname, dest_name);
2031 info = g_new0 (MonoAssemblyBindingInfo, 1);
2032 info->major = aname->major;
2033 info->minor = aname->minor;
2035 ppimage = mono_assembly_load_publisher_policy (aname);
2037 get_publisher_policy_info (ppimage, aname, info);
2038 mono_image_close (ppimage);
2041 /* Define default error value if needed */
2042 if (!info->is_valid) {
2043 info->name = g_strdup (aname->name);
2044 info->culture = g_strdup (aname->culture);
2045 g_strlcpy ((char *)info->public_key_token, (const char *)aname->public_key_token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
2048 mono_loader_lock ();
2049 info2 = search_binding_loaded (aname);
2051 /* This binding was added by another thread
2053 mono_assembly_binding_info_free (info);
2058 loaded_assembly_bindings = g_slist_prepend (loaded_assembly_bindings, info);
2060 mono_loader_unlock ();
2062 if (!info->is_valid || !check_policy_versions (info, aname))
2065 mono_assembly_bind_version (info, aname, dest_name);
2070 * mono_assembly_load_from_gac
2072 * @aname: The assembly name object
2074 static MonoAssembly*
2075 mono_assembly_load_from_gac (MonoAssemblyName *aname, gchar *filename, MonoImageOpenStatus *status, MonoBoolean refonly)
2077 MonoAssembly *result = NULL;
2078 gchar *name, *version, *culture, *fullpath, *subpath;
2082 if (aname->public_key_token [0] == 0) {
2086 if (strstr (aname->name, ".dll")) {
2087 len = strlen (filename) - 4;
2088 name = g_malloc (len);
2089 strncpy (name, aname->name, len);
2091 name = g_strdup (aname->name);
2094 if (aname->culture) {
2095 culture = g_strdup (aname->culture);
2096 g_strdown (culture);
2098 culture = g_strdup ("");
2101 version = g_strdup_printf ("%d.%d.%d.%d_%s_%s", aname->major,
2102 aname->minor, aname->build, aname->revision,
2103 culture, aname->public_key_token);
2105 subpath = g_build_path (G_DIR_SEPARATOR_S, name, version, filename, NULL);
2110 if (extra_gac_paths) {
2111 paths = extra_gac_paths;
2112 while (!result && *paths) {
2113 fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths, "lib", "mono", "gac", subpath, NULL);
2114 result = mono_assembly_open_full (fullpath, status, refonly);
2121 result->in_gac = TRUE;
2126 fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
2127 "mono", "gac", subpath, NULL);
2128 result = mono_assembly_open_full (fullpath, status, refonly);
2132 result->in_gac = TRUE;
2141 mono_assembly_load_corlib (const MonoRuntimeInfo *runtime, MonoImageOpenStatus *status)
2146 /* g_print ("corlib already loaded\n"); */
2150 if (assemblies_path) {
2151 corlib = load_in_path ("mscorlib.dll", (const char**)assemblies_path, status, FALSE);
2156 /* Load corlib from mono/<version> */
2158 corlib_file = g_build_filename ("mono", runtime->framework_version, "mscorlib.dll", NULL);
2159 if (assemblies_path) {
2160 corlib = load_in_path (corlib_file, (const char**)assemblies_path, status, FALSE);
2162 g_free (corlib_file);
2166 corlib = load_in_path (corlib_file, default_path, status, FALSE);
2167 g_free (corlib_file);
2173 * mono_assembly_load_full:
2174 * @aname: A MonoAssemblyName with the assembly name to load.
2175 * @basedir: A directory to look up the assembly at.
2176 * @status: a pointer to a MonoImageOpenStatus to return the status of the load operation
2177 * @refonly: Whether this assembly is being opened in "reflection-only" mode.
2179 * Loads the assembly referenced by @aname, if the value of @basedir is not NULL, it
2180 * attempts to load the assembly from that directory before probing the standard locations.
2182 * If the assembly is being opened in reflection-only mode (@refonly set to TRUE) then no
2183 * assembly binding takes place.
2185 * Returns: the assembly referenced by @aname loaded or NULL on error. On error the
2186 * value pointed by status is updated with an error code.
2189 mono_assembly_load_full (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status, gboolean refonly)
2191 MonoAssembly *result;
2192 char *fullpath, *filename;
2193 MonoAssemblyName maped_aname, maped_name_pp;
2198 aname = mono_assembly_remap_version (aname, &maped_aname);
2200 /* Reflection only assemblies don't get assembly binding */
2202 aname = mono_assembly_apply_binding (aname, &maped_name_pp);
2204 result = mono_assembly_loaded_full (aname, refonly);
2208 result = refonly ? invoke_assembly_refonly_preload_hook (aname, assemblies_path) : invoke_assembly_preload_hook (aname, assemblies_path);
2210 result->in_gac = FALSE;
2214 /* Currently we retrieve the loaded corlib for reflection
2215 * only requests, like a common reflection only assembly
2217 if (strcmp (aname->name, "mscorlib") == 0 || strcmp (aname->name, "mscorlib.dll") == 0) {
2218 return mono_assembly_load_corlib (mono_get_runtime_info (), status);
2221 len = strlen (aname->name);
2222 for (ext_index = 0; ext_index < 2; ext_index ++) {
2223 ext = ext_index == 0 ? ".dll" : ".exe";
2224 if (len > 4 && (!strcmp (aname->name + len - 4, ".dll") || !strcmp (aname->name + len - 4, ".exe"))) {
2225 filename = g_strdup (aname->name);
2226 /* Don't try appending .dll/.exe if it already has one of those extensions */
2229 filename = g_strconcat (aname->name, ext, NULL);
2232 result = mono_assembly_load_from_gac (aname, filename, status, refonly);
2239 fullpath = g_build_filename (basedir, filename, NULL);
2240 result = mono_assembly_open_full (fullpath, status, refonly);
2243 result->in_gac = FALSE;
2249 result = load_in_path (filename, default_path, status, refonly);
2251 result->in_gac = FALSE;
2257 /* Try a postload search hook */
2258 result = mono_assembly_invoke_search_hook_internal (aname, refonly, TRUE);
2264 * mono_assembly_load:
2265 * @aname: A MonoAssemblyName with the assembly name to load.
2266 * @basedir: A directory to look up the assembly at.
2267 * @status: a pointer to a MonoImageOpenStatus to return the status of the load operation
2269 * Loads the assembly referenced by @aname, if the value of @basedir is not NULL, it
2270 * attempts to load the assembly from that directory before probing the standard locations.
2272 * Returns: the assembly referenced by @aname loaded or NULL on error. On error the
2273 * value pointed by status is updated with an error code.
2276 mono_assembly_load (MonoAssemblyName *aname, const char *basedir, MonoImageOpenStatus *status)
2278 return mono_assembly_load_full (aname, basedir, status, FALSE);
2282 mono_assembly_loaded_full (MonoAssemblyName *aname, gboolean refonly)
2285 MonoAssemblyName maped_aname;
2287 aname = mono_assembly_remap_version (aname, &maped_aname);
2289 mono_assemblies_lock ();
2290 res = search_loaded (aname, refonly);
2291 mono_assemblies_unlock ();
2297 * mono_assembly_loaded:
2298 * @aname: an assembly to look for.
2300 * Returns: NULL If the given @aname assembly has not been loaded, or a pointer to
2301 * a MonoAssembly that matches the MonoAssemblyName specified.
2304 mono_assembly_loaded (MonoAssemblyName *aname)
2306 return mono_assembly_loaded_full (aname, FALSE);
2310 * mono_assembly_close:
2311 * @assembly: the assembly to release.
2313 * This method releases a reference to the @assembly. The assembly is
2314 * only released when all the outstanding references to it are released.
2317 mono_assembly_close (MonoAssembly *assembly)
2320 g_return_if_fail (assembly != NULL);
2322 if (assembly == REFERENCE_MISSING)
2325 /* Might be 0 already */
2326 if (InterlockedDecrement (&assembly->ref_count) > 0)
2329 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading assembly %s [%p].", assembly->aname.name, assembly);
2331 mono_assemblies_lock ();
2332 loaded_assemblies = g_list_remove (loaded_assemblies, assembly);
2333 mono_assemblies_unlock ();
2335 if (assembly->image->references) {
2338 for (i = 0; assembly->image->references [i]; i++) {
2339 if (assembly->image->references [i])
2340 mono_assembly_close (assembly->image->references [i]);
2343 g_free (assembly->image->references);
2344 assembly->image->references = NULL;
2347 assembly->image->assembly = NULL;
2349 mono_image_close (assembly->image);
2351 for (tmp = assembly->friend_assembly_names; tmp; tmp = tmp->next) {
2352 MonoAssemblyName *fname = tmp->data;
2353 mono_assembly_name_free (fname);
2356 g_slist_free (assembly->friend_assembly_names);
2357 g_free (assembly->basedir);
2358 if (assembly->dynamic) {
2359 g_free ((char*)assembly->aname.culture);
2366 mono_assembly_load_module (MonoAssembly *assembly, guint32 idx)
2368 MonoImageOpenStatus status;
2371 module = mono_image_load_file_for_image (assembly->image, idx);
2373 mono_assembly_load_references (module, &status);
2379 mono_assembly_foreach (GFunc func, gpointer user_data)
2384 * We make a copy of the list to avoid calling the callback inside the
2385 * lock, which could lead to deadlocks.
2387 mono_assemblies_lock ();
2388 copy = g_list_copy (loaded_assemblies);
2389 mono_assemblies_unlock ();
2391 g_list_foreach (loaded_assemblies, func, user_data);
2397 * mono_assemblies_cleanup:
2399 * Free all resources used by this module.
2402 mono_assemblies_cleanup (void)
2406 DeleteCriticalSection (&assemblies_mutex);
2408 g_hash_table_destroy (assemblies_loading);
2409 g_hash_table_destroy (assemblies_refonly_loading);
2411 for (l = loaded_assembly_bindings; l; l = l->next) {
2412 MonoAssemblyBindingInfo *info = l->data;
2414 mono_assembly_binding_info_free (info);
2417 g_slist_free (loaded_assembly_bindings);
2419 free_assembly_load_hooks ();
2420 free_assembly_search_hooks ();
2421 free_assembly_preload_hooks ();
2425 * Holds the assembly of the application, for
2426 * System.Diagnostics.Process::MainModule
2428 static MonoAssembly *main_assembly=NULL;
2431 mono_assembly_set_main (MonoAssembly *assembly)
2433 main_assembly = assembly;
2437 * mono_assembly_get_main:
2439 * Returns: the assembly for the application, the first assembly that is loaded by the VM
2442 mono_assembly_get_main (void)
2444 return (main_assembly);
2448 * mono_assembly_get_image:
2449 * @assembly: The assembly to retrieve the image from
2451 * Returns: the MonoImage associated with this assembly.
2454 mono_assembly_get_image (MonoAssembly *assembly)
2456 return assembly->image;
2460 mono_register_bundled_assemblies (const MonoBundledAssembly **assemblies)
2462 bundles = assemblies;