#include <mono/metadata/loader.h>
#include <mono/metadata/tabledefs.h>
#include <mono/metadata/metadata-internals.h>
+#include <mono/metadata/class-internals.h>
#include <mono/metadata/domain-internals.h>
+#include <mono/metadata/mono-endian.h>
#include <mono/io-layer/io-layer.h>
#include <mono/utils/mono-uri.h>
#include <mono/metadata/mono-config.h>
#include <mono/utils/mono-digest.h>
#include <mono/utils/mono-logger.h>
-#ifdef PLATFORM_WIN32
-#include <mono/os/util.h>
-#ifdef _MSC_VER
- /* not used on Windows - see mono_set_rootdir () */
- #define MONO_ASSEMBLIES NULL
-#endif
+#include <mono/metadata/reflection.h>
+
+#ifndef PLATFORM_WIN32
+#include <sys/types.h>
+#include <unistd.h>
+#include <sys/stat.h>
#endif
/* AssemblyVersionMap: an assembly name and the assembly version set on which it is based */
guint8 version_set_index;
} AssemblyVersionMap;
-/* the default search path is just MONO_ASSEMBLIES */
+/* the default search path is empty, the first slot is replaced with the computed value */
static const char*
default_path [] = {
- MONO_ASSEMBLIES,
+ NULL,
NULL
};
static MonoAssembly *corlib;
/* This protects loaded_assemblies and image->references */
+#define mono_assemblies_lock() EnterCriticalSection (&assemblies_mutex)
+#define mono_assemblies_unlock() LeaveCriticalSection (&assemblies_mutex)
static CRITICAL_SECTION assemblies_mutex;
/* A hastable of thread->assembly list mappings */
/* If defined, points to the bundled assembly information */
const MonoBundledAssembly **bundles;
-/* Reflection only private hook functions */
-static MonoAssembly* mono_assembly_refonly_invoke_search_hook (MonoAssemblyName *aname);
+/* Loaded assembly binding info */
+static GSList *loaded_assembly_bindings = NULL;
+
+static MonoAssembly*
+mono_assembly_invoke_search_hook_internal (MonoAssemblyName *aname, gboolean refonly, gboolean postload);
static gchar*
encode_public_tok (const guchar *token, gint32 len)
}
}
+static gboolean
+assembly_binding_maps_name (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname)
+{
+ if (strcmp (info->name, aname->name))
+ return FALSE;
+
+ if (info->major != aname->major || info->minor != aname->minor)
+ return FALSE;
+
+ if ((info->culture != NULL) != (aname->culture != NULL))
+ return FALSE;
+
+ if (info->culture && strcmp (info->culture, aname->culture))
+ return FALSE;
+
+ if (strcmp ((const char *)info->public_key_token, (const char *)aname->public_key_token))
+ return FALSE;
+
+ return TRUE;
+}
+
+static void
+mono_assembly_binding_info_free (MonoAssemblyBindingInfo *info)
+{
+ g_free (info->name);
+ g_free (info->culture);
+}
+
+static void
+get_publisher_policy_info (MonoImage *image, MonoAssemblyName *aname, MonoAssemblyBindingInfo *binding_info)
+{
+ MonoTableInfo *t;
+ guint32 cols [MONO_MANIFEST_SIZE];
+ const gchar *filename;
+ gchar *subpath, *fullpath;
+
+ t = &image->tables [MONO_TABLE_MANIFESTRESOURCE];
+ /* MS Impl. accepts policy assemblies with more than
+ * one manifest resource, and only takes the first one */
+ if (t->rows < 1) {
+ binding_info->is_valid = FALSE;
+ return;
+ }
+
+ mono_metadata_decode_row (t, 0, cols, MONO_MANIFEST_SIZE);
+ if ((cols [MONO_MANIFEST_IMPLEMENTATION] & MONO_IMPLEMENTATION_MASK) != MONO_IMPLEMENTATION_FILE) {
+ binding_info->is_valid = FALSE;
+ return;
+ }
+
+ filename = mono_metadata_string_heap (image, cols [MONO_MANIFEST_NAME]);
+ g_assert (filename != NULL);
+
+ subpath = g_path_get_dirname (image->name);
+ fullpath = g_build_path (G_DIR_SEPARATOR_S, subpath, filename, NULL);
+ mono_config_parse_publisher_policy (fullpath, binding_info);
+ g_free (subpath);
+ g_free (fullpath);
+
+ /* Define the optional elements/attributes before checking */
+ if (!binding_info->culture)
+ binding_info->culture = g_strdup ("");
+
+ /* Check that the most important elements/attributes exist */
+ if (!binding_info->name || !binding_info->public_key_token [0] || !binding_info->has_old_version_bottom ||
+ !binding_info->has_new_version || !assembly_binding_maps_name (binding_info, aname)) {
+ mono_assembly_binding_info_free (binding_info);
+ binding_info->is_valid = FALSE;
+ return;
+ }
+
+ binding_info->is_valid = TRUE;
+}
+
+static int
+compare_versions (AssemblyVersionSet *v, MonoAssemblyName *aname)
+{
+ if (v->major > aname->major)
+ return 1;
+ else if (v->major < aname->major)
+ return -1;
+
+ if (v->minor > aname->minor)
+ return 1;
+ else if (v->minor < aname->minor)
+ return -1;
+
+ if (v->build > aname->build)
+ return 1;
+ else if (v->build < aname->build)
+ return -1;
+
+ if (v->revision > aname->revision)
+ return 1;
+ else if (v->revision < aname->revision)
+ return -1;
+
+ return 0;
+}
+
+static gboolean
+check_policy_versions (MonoAssemblyBindingInfo *info, MonoAssemblyName *name)
+{
+ if (!info->is_valid)
+ return FALSE;
+
+ /* If has_old_version_top doesn't exist, we don't have an interval */
+ if (!info->has_old_version_top) {
+ if (compare_versions (&info->old_version_bottom, name) == 0)
+ return TRUE;
+
+ return FALSE;
+ }
+
+ /* Check that the version defined by name is valid for the interval */
+ if (compare_versions (&info->old_version_top, name) < 0)
+ return FALSE;
+
+ /* We should be greater or equal than the small version */
+ if (compare_versions (&info->old_version_bottom, name) > 0)
+ return FALSE;
+
+ return TRUE;
+}
+
+/**
+ * mono_assembly_names_equal:
+ * @l: first assembly
+ * @r: second assembly.
+ *
+ * Compares two MonoAssemblyNames and returns whether they are equal.
+ * This compares the names, the cultures, the release version and their
+ * public tokens.
+ *
+ * Returns: TRUE if both assembly names are equal.
+ */
gboolean
mono_assembly_names_equal (MonoAssemblyName *l, MonoAssemblyName *r)
{
MonoAssembly *ass;
GList *loading;
- ass = refonly ? mono_assembly_refonly_invoke_search_hook (aname) : mono_assembly_invoke_search_hook (aname);
+ ass = mono_assembly_invoke_search_hook_internal (aname, refonly, FALSE);
if (ass)
return ass;
default_path [0] = g_strdup (root_dir);
}
+/**
+ * mono_assembly_getrootdir:
+ *
+ * Returns: The internal root directory used for looking up assemblies
+ */
G_CONST_RETURN gchar *
mono_assembly_getrootdir (void)
{
return default_path [0];
}
+/**
+ * mono_set_dirs:
+ * @assembly_dir: the base directory for assemblies
+ * @config_dir: the base directory for configuration files
+ *
+ * This routine is used internally and by developers embedding
+ * the runtime into their own applications. There are a number
+ * of cases to consider: Mono as a system-installed package that
+ * is available on the location preconfigured or Mono in a relocated
+ * location.
+ *
+ * If you are using a system-installed Mono, you can pass NULL
+ * to both parameters. If you are not, you should compute both
+ * directory values and call this routine.
+ *
+ * The values for a given PREFIX are:
+ *
+ * assembly_dir: PREFIX/lib
+ * config_dir: PREFIX/etc
+ *
+ * Notice that embedders that use Mono in a relocated way must
+ * compute the location at runtime, as they will be in control
+ * of where Mono is installed.
+ */
+void
+mono_set_dirs (const char *assembly_dir, const char *config_dir)
+{
+#if defined (MONO_ASSEMBLIES)
+ if (assembly_dir == NULL)
+ assembly_dir = MONO_ASSEMBLIES;
+#endif
+#if defined (MONO_CFG_DIR)
+ if (config_dir == NULL)
+ config_dir = MONO_CFG_DIR;
+#endif
+ mono_assembly_setrootdir (assembly_dir);
+ mono_set_config_dir (config_dir);
+}
+
+#ifndef PLATFORM_WIN32
+
+static char *
+compute_base (char *path)
+{
+ char *p = rindex (path, '/');
+ if (p == NULL)
+ return NULL;
+
+ /* Not a well known Mono executable, we are embedded, cant guess the base */
+ if (strcmp (p, "/mono") && strcmp (p, "/monodis") && strcmp (p, "/mint") && strcmp (p, "/monodiet"))
+ return NULL;
+
+ *p = 0;
+ p = rindex (path, '/');
+ if (p == NULL)
+ return NULL;
+
+ if (strcmp (p, "/bin") != 0)
+ return NULL;
+ *p = 0;
+ return path;
+}
+
+static void
+fallback (void)
+{
+ mono_set_dirs (MONO_ASSEMBLIES, MONO_CFG_DIR);
+}
+
+static void
+set_dirs (char *exe)
+{
+ char *base;
+ char *config, *lib, *mono;
+ struct stat buf;
+
+ /*
+ * Only /usr prefix is treated specially
+ */
+ if (strncmp (exe, MONO_BINDIR, strlen (MONO_BINDIR)) == 0 || (base = compute_base (exe)) == NULL){
+ fallback ();
+ return;
+ }
+
+ config = g_build_filename (base, "etc", NULL);
+ lib = g_build_filename (base, "lib", NULL);
+ mono = g_build_filename (lib, "mono/1.0", NULL);
+ if (stat (mono, &buf) == -1)
+ fallback ();
+ else {
+ mono_set_dirs (lib, config);
+ }
+
+ g_free (config);
+ g_free (lib);
+ g_free (mono);
+}
+
+#endif /* PLATFORM_WIN32 */
+
+#ifdef UNDER_CE
+#undef GetModuleFileName
+#define GetModuleFileName ceGetModuleFileNameA
+
+DWORD ceGetModuleFileNameA(HMODULE hModule, char* lpFilename, DWORD nSize)
+{
+ DWORD res = 0;
+ wchar_t* wbuff = (wchar_t*)LocalAlloc(LPTR, nSize*2);
+ res = GetModuleFileNameW(hModule, wbuff, nSize);
+ if (res) {
+ int len = wcslen(wbuff);
+ WideCharToMultiByte(CP_ACP, 0, wbuff, len, lpFilename, len, NULL, NULL);
+ }
+ LocalFree(wbuff);
+ return res;
+}
+#endif
+
+/**
+ * mono_set_rootdir:
+ *
+ * Registers the root directory for the Mono runtime, for Linux and Solaris 10,
+ * this auto-detects the prefix where Mono was installed.
+ */
+void
+mono_set_rootdir (void)
+{
+#ifdef PLATFORM_WIN32
+ gunichar2 moddir [MAXPATHLEN];
+ gchar *bindir, *installdir, *root, *utf8name, *config;
+
+ GetModuleFileNameW (NULL, moddir, MAXPATHLEN);
+ utf8name = g_utf16_to_utf8 (moddir, -1, NULL, NULL, NULL);
+ bindir = g_path_get_dirname (utf8name);
+ installdir = g_path_get_dirname (bindir);
+ root = g_build_path (G_DIR_SEPARATOR_S, installdir, "lib", NULL);
+
+ config = g_build_filename (root, "..", "etc", NULL);
+ mono_set_dirs (root, config);
+
+ g_free (config);
+ g_free (root);
+ g_free (installdir);
+ g_free (bindir);
+ g_free (utf8name);
+#else
+ char buf [4096];
+ int s;
+ char *str;
+
+ /* Linux style */
+ s = readlink ("/proc/self/exe", buf, sizeof (buf)-1);
+
+ if (s != -1){
+ buf [s] = 0;
+ set_dirs (buf);
+ return;
+ }
+
+ /* Solaris 10 style */
+ str = g_strdup_printf ("/proc/%d/path/a.out", getpid ());
+ s = readlink (str, buf, sizeof (buf)-1);
+ g_free (str);
+ if (s != -1){
+ buf [s] = 0;
+ set_dirs (buf);
+ return;
+ }
+ fallback ();
+#endif
+}
+
/**
* mono_assemblies_init:
*
void
mono_assemblies_init (void)
{
-#ifdef PLATFORM_WIN32
- mono_set_rootdir ();
-#endif
+ /*
+ * Initialize our internal paths if we have not been initialized yet.
+ * This happens when embedders use Mono.
+ */
+ if (mono_assembly_getrootdir () == NULL)
+ mono_set_rootdir ();
check_path_env ();
check_extra_gac_path_env ();
return TRUE;
}
+/*
+ * mono_stringify_assembly_name:
+ *
+ * Convert @aname into its string format. The returned string is dynamically
+ * allocated and should be freed by the caller.
+ */
+char*
+mono_stringify_assembly_name (MonoAssemblyName *aname)
+{
+ return g_strdup_printf (
+ "%s, Version=%d.%d.%d.%d, Culture=%s%s%s",
+ aname->name,
+ aname->major, aname->minor, aname->build, aname->revision,
+ aname->culture && *aname->culture? aname->culture: "neutral",
+ aname->public_key_token [0] ? ", PublicKeyToken=" : "",
+ aname->public_key_token [0] ? (char *)aname->public_key_token : "");
+}
+
static gchar*
assemblyref_public_tok (MonoImage *image, guint32 key_index, guint32 flags)
{
return encode_public_tok (public_tok, len);
}
+/**
+ * mono_assembly_addref:
+ * @assemnly: the assembly to reference
+ *
+ * This routine increments the reference count on a MonoAssembly.
+ * The reference count is reduced every time the method mono_assembly_close() is
+ * invoked.
+ */
void
mono_assembly_addref (MonoAssembly *assembly)
{
- EnterCriticalSection (&assemblies_mutex);
- /*g_print ("adding ref from %d to %s (%p)\n", assembly->ref_count, assembly->aname.name, assembly);*/
- assembly->ref_count++;
- LeaveCriticalSection (&assemblies_mutex);
+ InterlockedIncrement (&assembly->ref_count);
}
static MonoAssemblyName *
return aname;
}
+/*
+ * mono_assembly_get_assemblyref:
+ *
+ * Fill out ANAME with the assembly name of the INDEXth assembly reference in IMAGE.
+ */
void
-mono_assembly_load_reference (MonoImage *image, int index)
+mono_assembly_get_assemblyref (MonoImage *image, int index, MonoAssemblyName *aname)
{
MonoTableInfo *t;
guint32 cols [MONO_ASSEMBLYREF_SIZE];
const char *hash;
+
+ t = &image->tables [MONO_TABLE_ASSEMBLYREF];
+
+ mono_metadata_decode_row (t, index, cols, MONO_ASSEMBLYREF_SIZE);
+
+ hash = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLYREF_HASH_VALUE]);
+ aname->hash_len = mono_metadata_decode_blob_size (hash, &hash);
+ aname->hash_value = hash;
+ aname->name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_NAME]);
+ aname->culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_CULTURE]);
+ aname->flags = cols [MONO_ASSEMBLYREF_FLAGS];
+ aname->major = cols [MONO_ASSEMBLYREF_MAJOR_VERSION];
+ aname->minor = cols [MONO_ASSEMBLYREF_MINOR_VERSION];
+ aname->build = cols [MONO_ASSEMBLYREF_BUILD_NUMBER];
+ aname->revision = cols [MONO_ASSEMBLYREF_REV_NUMBER];
+
+ if (cols [MONO_ASSEMBLYREF_PUBLIC_KEY]) {
+ gchar *token = assemblyref_public_tok (image, cols [MONO_ASSEMBLYREF_PUBLIC_KEY], aname->flags);
+ g_strlcpy (aname->public_key_token, token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
+ g_free (token);
+ } else {
+ memset (aname->public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
+ }
+}
+
+void
+mono_assembly_load_reference (MonoImage *image, int index)
+{
MonoAssembly *reference;
MonoAssemblyName aname;
MonoImageOpenStatus status;
* image->references is shared between threads, so we need to access
* it inside a critical section.
*/
- EnterCriticalSection (&assemblies_mutex);
+ mono_assemblies_lock ();
reference = image->references [index];
- LeaveCriticalSection (&assemblies_mutex);
+ mono_assemblies_unlock ();
if (reference)
return;
- t = &image->tables [MONO_TABLE_ASSEMBLYREF];
-
- mono_metadata_decode_row (t, index, cols, MONO_ASSEMBLYREF_SIZE);
-
- hash = mono_metadata_blob_heap (image, cols [MONO_ASSEMBLYREF_HASH_VALUE]);
- aname.hash_len = mono_metadata_decode_blob_size (hash, &hash);
- aname.hash_value = hash;
- aname.name = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_NAME]);
- aname.culture = mono_metadata_string_heap (image, cols [MONO_ASSEMBLYREF_CULTURE]);
- aname.flags = cols [MONO_ASSEMBLYREF_FLAGS];
- aname.major = cols [MONO_ASSEMBLYREF_MAJOR_VERSION];
- aname.minor = cols [MONO_ASSEMBLYREF_MINOR_VERSION];
- aname.build = cols [MONO_ASSEMBLYREF_BUILD_NUMBER];
- aname.revision = cols [MONO_ASSEMBLYREF_REV_NUMBER];
-
- if (cols [MONO_ASSEMBLYREF_PUBLIC_KEY]) {
- gchar *token = assemblyref_public_tok (image, cols [MONO_ASSEMBLYREF_PUBLIC_KEY], aname.flags);
- g_strlcpy (aname.public_key_token, token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
- g_free (token);
- } else {
- memset (aname.public_key_token, 0, MONO_PUBLIC_KEY_TOKEN_LENGTH);
- }
+ mono_assembly_get_assemblyref (image, index, &aname);
if (image->assembly->ref_only) {
/* We use the loaded corlib */
g_free (extra_msg);
}
- EnterCriticalSection (&assemblies_mutex);
+ mono_assemblies_lock ();
if (reference == NULL) {
/* Flag as not found */
reference = (gpointer)-1;
- } else {
- reference->ref_count++;
}
- if (!image->references [index])
+ if (!image->references [index]) {
+ mono_assembly_addref (reference);
+ mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly Ref addref %s %p -> %s %p: %d\n", image->assembly->aname.name, image->assembly, reference->aname.name, reference, reference->ref_count);
image->references [index] = reference;
- LeaveCriticalSection (&assemblies_mutex);
+ }
+ mono_assemblies_unlock ();
if (image->references [index] != reference) {
/* Somebody loaded it before us */
struct AssemblySearchHook {
AssemblySearchHook *next;
MonoAssemblySearchFunc func;
+ gboolean refonly;
+ gboolean postload;
gpointer user_data;
};
AssemblySearchHook *assembly_search_hook = NULL;
-static AssemblySearchHook *assembly_refonly_search_hook = NULL;
-MonoAssembly*
-mono_assembly_invoke_search_hook (MonoAssemblyName *aname)
+static MonoAssembly*
+mono_assembly_invoke_search_hook_internal (MonoAssemblyName *aname, gboolean refonly, gboolean postload)
{
AssemblySearchHook *hook;
for (hook = assembly_search_hook; hook; hook = hook->next) {
- MonoAssembly *ass = hook->func (aname, hook->user_data);
- if (ass)
- return ass;
+ if ((hook->refonly == refonly) && (hook->postload == postload)) {
+ MonoAssembly *ass = hook->func (aname, hook->user_data);
+ if (ass)
+ return ass;
+ }
}
return NULL;
}
-static MonoAssembly*
-mono_assembly_refonly_invoke_search_hook (MonoAssemblyName *aname)
+MonoAssembly*
+mono_assembly_invoke_search_hook (MonoAssemblyName *aname)
{
- AssemblySearchHook *hook;
-
- for (hook = assembly_refonly_search_hook; hook; hook = hook->next) {
- MonoAssembly *ass = hook->func (aname, hook->user_data);
- if (ass)
- return ass;
- }
-
- return NULL;
+ return mono_assembly_invoke_search_hook_internal (aname, FALSE, FALSE);
}
-void
-mono_install_assembly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
+static void
+mono_install_assembly_search_hook_internal (MonoAssemblySearchFunc func, gpointer user_data, gboolean refonly, gboolean postload)
{
AssemblySearchHook *hook;
hook = g_new0 (AssemblySearchHook, 1);
hook->func = func;
hook->user_data = user_data;
+ hook->refonly = refonly;
+ hook->postload = postload;
hook->next = assembly_search_hook;
assembly_search_hook = hook;
+}
+
+void
+mono_install_assembly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
+{
+ mono_install_assembly_search_hook_internal (func, user_data, FALSE, FALSE);
}
void
mono_install_assembly_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
{
- AssemblySearchHook *hook;
+ mono_install_assembly_search_hook_internal (func, user_data, TRUE, FALSE);
+}
- g_return_if_fail (func != NULL);
+void
+mono_install_assembly_postload_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
+{
+ mono_install_assembly_search_hook_internal (func, user_data, FALSE, TRUE);
+}
- hook = g_new0 (AssemblySearchHook, 1);
- hook->func = func;
- hook->user_data = user_data;
- hook->next = assembly_refonly_search_hook;
- assembly_refonly_search_hook = hook;
+void
+mono_install_assembly_postload_refonly_search_hook (MonoAssemblySearchFunc func, gpointer user_data)
+{
+ mono_install_assembly_search_hook_internal (func, user_data, TRUE, TRUE);
}
typedef struct AssemblyPreLoadHook AssemblyPreLoadHook;
* returns NULL
*/
static MonoImage *
-mono_assembly_open_from_bundle (const char *filename, MonoImageOpenStatus *status)
+mono_assembly_open_from_bundle (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
{
int i;
char *name = g_path_get_basename (filename);
* we do a very simple search for bundled assemblies: it's not a general
* purpose assembly loading mechanism.
*/
- EnterCriticalSection (&assemblies_mutex);
+ mono_assemblies_lock ();
for (i = 0; !image && bundles [i]; ++i) {
if (strcmp (bundles [i]->name, name) == 0) {
- image = mono_image_open_from_data ((char*)bundles [i]->data, bundles [i]->size, FALSE, status);
+ image = mono_image_open_from_data_full ((char*)bundles [i]->data, bundles [i]->size, FALSE, status, refonly);
break;
}
}
- LeaveCriticalSection (&assemblies_mutex);
+ mono_assemblies_unlock ();
g_free (name);
if (image) {
mono_image_addref (image);
}
static MonoImage*
-do_mono_assembly_open (const char *filename, MonoImageOpenStatus *status)
+do_mono_assembly_open (const char *filename, MonoImageOpenStatus *status, gboolean refonly)
{
MonoImage *image = NULL;
if (bundles != NULL){
- image = mono_assembly_open_from_bundle (filename, status);
+ image = mono_assembly_open_from_bundle (filename, status, refonly);
if (image != NULL)
return image;
}
- EnterCriticalSection (&assemblies_mutex);
- image = mono_image_open (filename, status);
- LeaveCriticalSection (&assemblies_mutex);
+ mono_assemblies_lock ();
+ image = mono_image_open_full (filename, status, refonly);
+ mono_assemblies_unlock ();
return image;
}
mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY,
"Assembly Loader probing location: '%s'.", filename);
- image = do_mono_assembly_open (fname, status);
+ image = do_mono_assembly_open (fname, status, refonly);
if (!image){
*status = MONO_IMAGE_ERROR_ERRNO;
return NULL;
}
+ if (image->assembly) {
+ /* Already loaded by another appdomain */
+ mono_assembly_invoke_load_hook (image->assembly);
+ return image->assembly;
+ }
+
ass = mono_assembly_load_from_full (image, fname, status, refonly);
if (ass) {
return ass;
}
+/*
+ * load_friend_assemblies:
+ * @ass: an assembly
+ *
+ * Load the list of friend assemblies that are allowed to access
+ * the assembly's internal types and members. They are stored as assembly
+ * names in custom attributes.
+ */
+static void
+load_friend_assemblies (MonoAssembly* ass)
+{
+ int i;
+ MonoCustomAttrInfo* attrs = mono_custom_attrs_from_assembly (ass);
+ if (!attrs)
+ return;
+ for (i = 0; i < attrs->num_attrs; ++i) {
+ MonoCustomAttrEntry *attr = &attrs->attrs [i];
+ MonoAssemblyName *aname;
+ const guchar *data;
+ guint slen;
+ /* Do some sanity checking */
+ if (!attr->ctor || attr->ctor->klass != mono_defaults.internals_visible_class)
+ continue;
+ if (attr->data_size < 4)
+ continue;
+ data = attr->data;
+ /* 0xFF means null string, see custom attr format */
+ if (data [0] != 1 || data [1] != 0 || data [2] == 0xFF)
+ continue;
+ slen = mono_metadata_decode_value (data + 2, &data);
+ aname = g_new0 (MonoAssemblyName, 1);
+ /*g_print ("friend ass: %s\n", data);*/
+ if (mono_assembly_name_parse_full (data, aname, TRUE, NULL)) {
+ ass->friend_assembly_names = g_slist_prepend (ass->friend_assembly_names, aname);
+ } else {
+ g_free (aname);
+ }
+ }
+ mono_custom_attrs_free (attrs);
+}
+
/**
* mono_assembly_open:
* @filename: Opens the assembly pointed out by this name
ass->basedir = base_dir;
ass->ref_only = refonly;
ass->image = image;
- ass->ref_count = 1;
+
+ mono_image_addref (image);
mono_assembly_fill_assembly_name (image, &ass->aname);
+ 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);
+
/*
* Atomically search the loaded list and add ourselves to it if necessary.
*/
- EnterCriticalSection (&assemblies_mutex);
+ mono_assemblies_lock ();
if (ass->aname.name) {
/* avoid loading the same assembly twice for now... */
ass2 = search_loaded (&ass->aname, refonly);
g_free (base_dir);
mono_image_close (image);
*status = MONO_IMAGE_OK;
- LeaveCriticalSection (&assemblies_mutex);
+ mono_assemblies_unlock ();
return ass2;
}
}
loading = g_hash_table_lookup (ass_loading, GetCurrentThread ());
loading = g_list_prepend (loading, ass);
g_hash_table_insert (ass_loading, GetCurrentThread (), loading);
- LeaveCriticalSection (&assemblies_mutex);
+ mono_assemblies_unlock ();
+ g_assert (image->assembly == NULL);
image->assembly = ass;
mono_assembly_load_references (image, status);
- EnterCriticalSection (&assemblies_mutex);
+ mono_assemblies_lock ();
loading = g_hash_table_lookup (ass_loading, GetCurrentThread ());
loading = g_list_remove (loading, ass);
else
g_hash_table_insert (ass_loading, GetCurrentThread (), loading);
if (*status != MONO_IMAGE_OK) {
- LeaveCriticalSection (&assemblies_mutex);
+ mono_assemblies_unlock ();
mono_assembly_close (ass);
return NULL;
}
ass2 = search_loaded (&ass->aname, refonly);
if (ass2) {
/* Somebody else has loaded the assembly before us */
- LeaveCriticalSection (&assemblies_mutex);
+ mono_assemblies_unlock ();
mono_assembly_close (ass);
return ass2;
}
}
loaded_assemblies = g_list_prepend (loaded_assemblies, ass);
- LeaveCriticalSection (&assemblies_mutex);
+ if (mono_defaults.internals_visible_class)
+ load_friend_assemblies (ass);
+ mono_assemblies_unlock ();
mono_assembly_invoke_load_hook (ass);
}
static gboolean
-build_assembly_name (const char *name, const char *version, const char *culture, const char *token, MonoAssemblyName *aname)
+parse_public_key (const gchar *key, gchar** pubkey)
+{
+ const gchar *pkey;
+ gchar header [16], val, *arr;
+ gint i, j, offset, bitlen, keylen, pkeylen;
+
+ keylen = strlen (key) >> 1;
+ if (keylen < 1)
+ return FALSE;
+
+ val = g_ascii_xdigit_value (key [0]) << 4;
+ val |= g_ascii_xdigit_value (key [1]);
+ switch (val) {
+ case 0x00:
+ if (keylen < 13)
+ return FALSE;
+ val = g_ascii_xdigit_value (key [24]);
+ val |= g_ascii_xdigit_value (key [25]);
+ if (val != 0x06)
+ return FALSE;
+ pkey = key + 24;
+ break;
+ case 0x06:
+ pkey = key;
+ break;
+ default:
+ return FALSE;
+ }
+
+ /* We need the first 16 bytes
+ * to check whether this key is valid or not */
+ pkeylen = strlen (pkey) >> 1;
+ if (pkeylen < 16)
+ return FALSE;
+
+ for (i = 0, j = 0; i < 16; i++) {
+ header [i] = g_ascii_xdigit_value (pkey [j++]) << 4;
+ header [i] |= g_ascii_xdigit_value (pkey [j++]);
+ }
+
+ if (header [0] != 0x06 || /* PUBLICKEYBLOB (0x06) */
+ header [1] != 0x02 || /* Version (0x02) */
+ header [2] != 0x00 || /* Reserved (word) */
+ header [3] != 0x00 ||
+ (guint)(read32 (header + 8)) != 0x31415352) /* DWORD magic = RSA1 */
+ return FALSE;
+
+ /* Based on this length, we _should_ be able to know if the length is right */
+ bitlen = read32 (header + 12) >> 3;
+ if ((bitlen + 16 + 4) != pkeylen)
+ return FALSE;
+
+ /* Encode the size of the blob */
+ offset = 0;
+ if (keylen <= 127) {
+ arr = g_malloc (keylen + 1);
+ arr [offset++] = keylen;
+ } else {
+ arr = g_malloc (keylen + 2);
+ arr [offset++] = 0x80; /* 10bs */
+ arr [offset++] = keylen;
+ }
+
+ for (i = offset, j = 0; i < keylen + offset; i++) {
+ arr [i] = g_ascii_xdigit_value (key [j++]) << 4;
+ arr [i] |= g_ascii_xdigit_value (key [j++]);
+ }
+ if (pubkey)
+ *pubkey = arr;
+
+ return TRUE;
+}
+
+static gboolean
+build_assembly_name (const char *name, const char *version, const char *culture, const char *token, const char *key, MonoAssemblyName *aname, gboolean save_public_key)
{
gint major, minor, build, revision;
+ gint len;
+ gchar *pkey, *pkeyptr, *encoded, tok [8];
memset (aname, 0, sizeof (MonoAssemblyName));
aname->name = g_strdup (name);
if (culture) {
- if (g_strcasecmp (culture, "neutral") == 0)
+ if (g_ascii_strcasecmp (culture, "neutral") == 0)
aname->culture = g_strdup ("");
else
aname->culture = g_strdup (culture);
}
- if (token && strncmp (token, "null", 4) != 0)
- g_strlcpy ((char*)aname->public_key_token, token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
+ if (token && strncmp (token, "null", 4) != 0) {
+ char *lower = g_ascii_strdown (token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
+ g_strlcpy ((char*)aname->public_key_token, lower, MONO_PUBLIC_KEY_TOKEN_LENGTH);
+ g_free (lower);
+ }
+
+ if (key && strncmp (key, "null", 4) != 0) {
+ if (!parse_public_key (key, &pkey)) {
+ mono_assembly_name_free (aname);
+ return FALSE;
+ }
+
+ len = mono_metadata_decode_blob_size ((const gchar *) pkey, (const gchar **) &pkeyptr);
+ // We also need to generate the key token
+ mono_digest_get_public_token ((guchar*) tok, (guint8*) pkeyptr, len);
+ encoded = encode_public_tok ((guchar*) tok, 8);
+ g_strlcpy ((gchar*)aname->public_key_token, encoded, MONO_PUBLIC_KEY_TOKEN_LENGTH);
+ g_free (encoded);
+
+ if (save_public_key)
+ aname->public_key = (guint8*) pkey;
+ else
+ g_free (pkey);
+ }
return TRUE;
}
return FALSE;
}
- res = build_assembly_name (name, parts[0], parts[1], parts[2], aname);
+ res = build_assembly_name (name, parts[0], parts[1], parts[2], NULL, aname, FALSE);
g_strfreev (parts);
return res;
}
-/**
-* mono_assembly_name_parse:
-* @name: name to parse
-* @aname: the destination assembly name
-* Returns: true if the name could be parsed.
-*
-* Parses an assembly qualified type name and assigns the name,
-* version, culture and token to the provided assembly name object.
-*/
gboolean
-mono_assembly_name_parse (const char *name, MonoAssemblyName *aname)
+mono_assembly_name_parse_full (const char *name, MonoAssemblyName *aname, gboolean save_public_key, gboolean *is_version_defined)
{
gchar *dllname;
gchar *version = NULL;
gchar *culture = NULL;
gchar *token = NULL;
+ gchar *key = NULL;
gboolean res;
gchar *value;
gchar **parts;
gchar **tmp;
+ gboolean version_defined;
+ if (!is_version_defined)
+ is_version_defined = &version_defined;
+ *is_version_defined = FALSE;
+
parts = tmp = g_strsplit (name, ",", 4);
if (!tmp || !*tmp) {
g_strfreev (tmp);
while (*tmp) {
value = g_strstrip (*tmp);
if (!g_ascii_strncasecmp (value, "Version=", 8)) {
+ *is_version_defined = TRUE;
version = g_strstrip (value + 8);
tmp++;
continue;
tmp++;
continue;
}
+
+ if (!g_ascii_strncasecmp (value, "PublicKey=", 10)) {
+ key = g_strstrip (value + 10);
+ tmp++;
+ continue;
+ }
g_strfreev (parts);
return FALSE;
}
- res = build_assembly_name (dllname, version, culture, token, aname);
+ res = build_assembly_name (dllname, version, culture, token, key, aname, save_public_key);
g_strfreev (parts);
return res;
}
+/**
+* mono_assembly_name_parse:
+* @name: name to parse
+* @aname: the destination assembly name
+* Returns: true if the name could be parsed.
+*
+* Parses an assembly qualified type name and assigns the name,
+* version, culture and token to the provided assembly name object.
+*/
+gboolean
+mono_assembly_name_parse (const char *name, MonoAssemblyName *aname)
+{
+ return mono_assembly_name_parse_full (name, aname, FALSE, NULL);
+}
+
static MonoAssembly*
probe_for_partial_name (const char *basepath, const char *fullname, MonoAssemblyName *aname, MonoImageOpenStatus *status)
{
return res;
}
+static MonoImage*
+mono_assembly_load_publisher_policy (MonoAssemblyName *aname)
+{
+ MonoImage *image;
+ gchar *filename, *pname, *name, *culture, *version, *fullpath, *subpath;
+ gchar **paths;
+ gint32 len;
+
+ if (strstr (aname->name, ".dll")) {
+ len = strlen (aname->name) - 4;
+ name = g_malloc (len);
+ strncpy (name, aname->name, len);
+ } else
+ name = g_strdup (aname->name);
+
+ if (aname->culture) {
+ culture = g_strdup (aname->culture);
+ g_strdown (culture);
+ } else
+ culture = g_strdup ("");
+
+ pname = g_strdup_printf ("policy.%d.%d.%s", aname->major, aname->minor, name);
+ version = g_strdup_printf ("0.0.0.0_%s_%s", culture, aname->public_key_token);
+ g_free (name);
+ g_free (culture);
+
+ filename = g_strconcat (pname, ".dll", NULL);
+ subpath = g_build_path (G_DIR_SEPARATOR_S, pname, version, filename, NULL);
+ g_free (pname);
+ g_free (version);
+ g_free (filename);
+
+ image = NULL;
+ if (extra_gac_paths) {
+ paths = extra_gac_paths;
+ while (!image && *paths) {
+ fullpath = g_build_path (G_DIR_SEPARATOR_S, *paths,
+ "lib", "mono", "gac", subpath, NULL);
+ image = mono_image_open (fullpath, NULL);
+ g_free (fullpath);
+ paths++;
+ }
+ }
+
+ if (image) {
+ g_free (subpath);
+ return image;
+ }
+
+ fullpath = g_build_path (G_DIR_SEPARATOR_S, mono_assembly_getrootdir (),
+ "mono", "gac", subpath, NULL);
+ image = mono_image_open (fullpath, NULL);
+ g_free (subpath);
+ g_free (fullpath);
+
+ return image;
+}
+
+static MonoAssemblyName*
+mono_assembly_bind_version (MonoAssemblyBindingInfo *info, MonoAssemblyName *aname, MonoAssemblyName *dest_name)
+{
+ memcpy (dest_name, aname, sizeof (MonoAssemblyName));
+ dest_name->major = info->new_version.major;
+ dest_name->minor = info->new_version.minor;
+ dest_name->build = info->new_version.build;
+ dest_name->revision = info->new_version.revision;
+
+ return dest_name;
+}
+
+/* LOCKING: Assumes that we are already locked */
+static MonoAssemblyBindingInfo*
+search_binding_loaded (MonoAssemblyName *aname)
+{
+ GSList *tmp;
+
+ for (tmp = loaded_assembly_bindings; tmp; tmp = tmp->next) {
+ MonoAssemblyBindingInfo *info = tmp->data;
+ if (assembly_binding_maps_name (info, aname))
+ return info;
+ }
+
+ return NULL;
+}
+
+static MonoAssemblyName*
+mono_assembly_apply_binding (MonoAssemblyName *aname, MonoAssemblyName *dest_name)
+{
+ MonoAssemblyBindingInfo *info, *info2;
+ MonoImage *ppimage;
+
+ if (aname->public_key_token [0] == 0)
+ return aname;
+
+ mono_loader_lock ();
+ info = search_binding_loaded (aname);
+ mono_loader_unlock ();
+ if (info) {
+ if (!check_policy_versions (info, aname))
+ return aname;
+
+ mono_assembly_bind_version (info, aname, dest_name);
+ return dest_name;
+ }
+
+ info = g_new0 (MonoAssemblyBindingInfo, 1);
+ info->major = aname->major;
+ info->minor = aname->minor;
+
+ ppimage = mono_assembly_load_publisher_policy (aname);
+ if (ppimage) {
+ get_publisher_policy_info (ppimage, aname, info);
+ mono_image_close (ppimage);
+ }
+
+ /* Define default error value if needed */
+ if (!info->is_valid) {
+ info->name = g_strdup (aname->name);
+ info->culture = g_strdup (aname->culture);
+ g_strlcpy ((char *)info->public_key_token, (const char *)aname->public_key_token, MONO_PUBLIC_KEY_TOKEN_LENGTH);
+ }
+
+ mono_loader_lock ();
+ info2 = search_binding_loaded (aname);
+ if (info2) {
+ /* This binding was added by another thread
+ * before us */
+ mono_assembly_binding_info_free (info);
+ g_free (info);
+
+ info = info2;
+ } else
+ loaded_assembly_bindings = g_slist_prepend (loaded_assembly_bindings, info);
+
+ mono_loader_unlock ();
+
+ if (!info->is_valid || !check_policy_versions (info, aname))
+ return aname;
+
+ mono_assembly_bind_version (info, aname, dest_name);
+ return dest_name;
+}
+
/**
* mono_assembly_load_from_gac
*
{
MonoAssembly *result;
char *fullpath, *filename;
- MonoAssemblyName maped_aname;
+ MonoAssemblyName maped_aname, maped_name_pp;
+ int ext_index;
+ const char *ext;
aname = mono_assembly_remap_version (aname, &maped_aname);
+ /* Reflection only assemblies don't get assembly binding */
+ if (!refonly)
+ aname = mono_assembly_apply_binding (aname, &maped_name_pp);
+
result = mono_assembly_loaded_full (aname, refonly);
if (result)
return result;
return mono_assembly_load_corlib (mono_get_runtime_info (), status);
}
- if (strstr (aname->name, ".dll"))
- filename = g_strdup (aname->name);
- else
- filename = g_strconcat (aname->name, ".dll", NULL);
-
- result = mono_assembly_load_from_gac (aname, filename, status, refonly);
- if (result) {
- g_free (filename);
- return result;
- }
+ for (ext_index = 0; ext_index < 2; ext_index ++) {
+ ext = ext_index == 0 ? ".dll" : ".exe";
+ if (strstr (aname->name, ".dll"))
+ filename = g_strdup (aname->name);
+ else
+ filename = g_strconcat (aname->name, ext, NULL);
- if (basedir) {
- fullpath = g_build_filename (basedir, filename, NULL);
- result = mono_assembly_open_full (fullpath, status, refonly);
- g_free (fullpath);
+ result = mono_assembly_load_from_gac (aname, filename, status, refonly);
if (result) {
- result->in_gac = FALSE;
g_free (filename);
return result;
}
+
+ if (basedir) {
+ fullpath = g_build_filename (basedir, filename, NULL);
+ result = mono_assembly_open_full (fullpath, status, refonly);
+ g_free (fullpath);
+ if (result) {
+ result->in_gac = FALSE;
+ g_free (filename);
+ return result;
+ }
+ }
+
+ result = load_in_path (filename, default_path, status, refonly);
+ if (result)
+ result->in_gac = FALSE;
+ g_free (filename);
+ if (result)
+ return result;
}
- result = load_in_path (filename, default_path, status, refonly);
- if (result)
- result->in_gac = FALSE;
- g_free (filename);
+ /* Try a postload search hook */
+ result = mono_assembly_invoke_search_hook_internal (aname, refonly, TRUE);
+
return result;
}
aname = mono_assembly_remap_version (aname, &maped_aname);
- EnterCriticalSection (&assemblies_mutex);
+ mono_assemblies_lock ();
res = search_loaded (aname, refonly);
- LeaveCriticalSection (&assemblies_mutex);
+ mono_assemblies_unlock ();
return res;
}
return mono_assembly_loaded_full (aname, FALSE);
}
+/**
+ * mono_assembly_close:
+ * @assembly: the assembly to release.
+ *
+ * This method releases a reference to the @assembly. The assembly is
+ * only released when all the outstanding references to it are released.
+ */
void
mono_assembly_close (MonoAssembly *assembly)
{
- MonoImage *image;
-
+ GSList *tmp;
g_return_if_fail (assembly != NULL);
- EnterCriticalSection (&assemblies_mutex);
- /*g_print ("destroy assembly %p %d (%s)\n", assembly, assembly->ref_count, assembly->image->name);*/
- g_assert (assembly->ref_count > 0);
- if (--assembly->ref_count != 0) {
- LeaveCriticalSection (&assemblies_mutex);
+ /* Might be 0 already */
+ if (InterlockedDecrement (&assembly->ref_count) > 0)
return;
- }
+
+ mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Unloading assembly %s [%p].", assembly->aname.name, assembly);
+
+ mono_assemblies_lock ();
loaded_assemblies = g_list_remove (loaded_assemblies, assembly);
- LeaveCriticalSection (&assemblies_mutex);
- image = assembly->image;
- /* assemblies belong to domains, so the domain code takes care of unloading the
- * referenced assemblies
- */
+ mono_assemblies_unlock ();
+
+ if (assembly->image->references) {
+ int i;
+
+ for (i = 0; assembly->image->references [i]; i++) {
+ if (assembly->image->references [i])
+ mono_assembly_close (assembly->image->references [i]);
+ }
+ }
+
+ assembly->image->assembly = NULL;
mono_image_close (assembly->image);
+ for (tmp = assembly->friend_assembly_names; tmp; tmp = tmp->next) {
+ MonoAssemblyName *fname = tmp->data;
+ mono_assembly_name_free (fname);
+ g_free (fname);
+ }
+ g_slist_free (assembly->friend_assembly_names);
g_free (assembly->basedir);
if (!assembly->dynamic)
g_free (assembly);
* We make a copy of the list to avoid calling the callback inside the
* lock, which could lead to deadlocks.
*/
- EnterCriticalSection (&assemblies_mutex);
+ mono_assemblies_lock ();
copy = g_list_copy (loaded_assemblies);
- LeaveCriticalSection (&assemblies_mutex);
+ mono_assemblies_unlock ();
g_list_foreach (loaded_assemblies, func, user_data);
return(main_assembly);
}
+/*
+ */
MonoImage*
mono_assembly_get_image (MonoAssembly *assembly)
{
projects / mono.git / blobdiff