#include <mono/metadata/cil-coff.h>
#include <mono/metadata/attrdefs.h>
#include <mono/utils/strenc.h>
+#include <mono/utils/mono-error-internals.h>
+#include <mono/utils/bsearch.h>
#include <string.h>
//#include <signal.h>
#include <ctype.h>
5, /*tables*/
MONO_TABLE_TYPEDEF,
MONO_TABLE_TYPEREF,
- MONO_TABLE_MODULE,
+ MONO_TABLE_MODULEREF,
MONO_TABLE_METHOD,
MONO_TABLE_TYPESPEC,
#endif
}
+static void
+add_from_mono_error (VerifyContext *ctx, MonoError *error)
+{
+ if (mono_error_ok (error))
+ return;
+
+ ADD_ERROR (ctx, g_strdup (mono_error_get_message (error)));
+ mono_error_cleanup (error);
+}
+
static guint32
pe_signature_offset (VerifyContext *ctx)
{
ptr = ctx->data + offset; //move to streams header
section_count = read16 (ptr + 2);
- if (section_count < 3)
- ADD_ERROR (ctx, g_strdup_printf ("Metadata root section must have at least 3 streams (#~, #GUID and #Blob"));
+ if (section_count < 2)
+ ADD_ERROR (ctx, g_strdup_printf ("Metadata root section must have at least 2 streams (#~ and #GUID)"));
ptr += 4;
offset += 4;
ADD_ERROR (ctx, g_strdup_printf ("Metadata #~ stream missing"));
if (!ctx->metadata_streams [GUID_STREAM].size)
ADD_ERROR (ctx, g_strdup_printf ("Metadata guid stream missing"));
- if (!ctx->metadata_streams [BLOB_STREAM].size)
- ADD_ERROR (ctx, g_strdup_printf ("Metadata blob stream missing"));
-
}
static void
}
static gboolean
-is_valid_string_full (VerifyContext *ctx, guint32 offset, gboolean allow_empty)
+is_valid_string_full_with_image (MonoImage *image, guint32 offset, gboolean allow_empty)
{
- OffsetAndSize strings = get_metadata_stream (ctx, &ctx->image->heap_strings);
+ guint32 heap_offset = (char*)image->heap_strings.data - image->raw_data;
+ guint32 heap_size = image->heap_strings.size;
+
glong length;
- const char *data = ctx->data + strings.offset;
+ const char *data = image->raw_data + heap_offset;
- if (offset >= strings.size)
+ if (offset >= heap_size)
return FALSE;
- if (data + offset < data) //FIXME, use a generalized and smart unsigned add with overflow check and fix the whole thing
+ if (CHECK_ADDP_OVERFLOW_UN (data, offset))
return FALSE;
- if (!mono_utf8_validate_and_len_with_bounds (data + offset, strings.size - offset, &length, NULL))
+ if (!mono_utf8_validate_and_len_with_bounds (data + offset, heap_size - offset, &length, NULL))
return FALSE;
return allow_empty || length > 0;
}
+
+static gboolean
+is_valid_string_full (VerifyContext *ctx, guint32 offset, gboolean allow_empty)
+{
+ return is_valid_string_full_with_image (ctx->image, offset, allow_empty);
+}
+
static gboolean
is_valid_string (VerifyContext *ctx, guint32 offset)
{
}
static gboolean
-is_valid_coded_index (VerifyContext *ctx, int token_kind, guint32 coded_token)
+is_valid_coded_index_with_image (MonoImage *image, int token_kind, guint32 coded_token)
{
guint32 bits = coded_index_desc [token_kind++];
guint32 table_count = coded_index_desc [token_kind++];
if (table == INVALID_TABLE)
return FALSE;
- return token <= ctx->image->tables [table].rows;
+ return token <= image->tables [table].rows;
+}
+
+static gboolean
+is_valid_coded_index (VerifyContext *ctx, int token_kind, guint32 coded_token)
+{
+ return is_valid_coded_index_with_image (ctx->image, token_kind, coded_token);
}
typedef struct {
base = tinfo->base;
VERIFIER_DEBUG ( printf ("looking token %x table %d col %d rsize %d roff %d\n", coded_token, table, column, locator.col_size, locator.col_offset) );
- res = bsearch (&locator, base, tinfo->rows, tinfo->row_size, token_locator);
+ res = mono_binary_search (&locator, base, tinfo->rows, tinfo->row_size, token_locator);
if (!res)
return -1;
static gboolean
mono_verifier_is_corlib (MonoImage *image)
{
- gboolean trusted_location = (mono_security_get_mode () != MONO_SECURITY_MODE_CORE_CLR) ?
+ gboolean trusted_location = !mono_security_core_clr_enabled () ?
TRUE : mono_security_core_clr_is_platform_image (image);
return trusted_location && image->module_name && !strcmp ("mscorlib.dll", image->module_name);
if (!safe_read_cint (token, ptr, end))
FAIL (ctx, g_strdup ("CustomMod: Not enough room for the token"));
- if (!is_valid_coded_index (ctx, TYPEDEF_OR_REF_DESC, token))
+ if (!is_valid_coded_index (ctx, TYPEDEF_OR_REF_DESC, token) || !get_coded_index_token (TYPEDEF_OR_REF_DESC, token))
FAIL (ctx, g_strdup_printf ("CustomMod: invalid TypeDefOrRef token %x", token));
}
if (!safe_read_cint (token, ptr, end))
FAIL (ctx, g_strdup ("GenericInst: Not enough room for type token"));
- if (!is_valid_coded_index (ctx, TYPEDEF_OR_REF_DESC, token))
+ if (!is_valid_coded_index (ctx, TYPEDEF_OR_REF_DESC, token) || !get_coded_index_token (TYPEDEF_OR_REF_DESC, token))
FAIL (ctx, g_strdup_printf ("GenericInst: invalid TypeDefOrRef token %x", token));
if (ctx->token) {
FAIL (ctx, g_strdup ("GenericInst: Zero arguments generic instance"));
for (i = 0; i < count; ++i) {
+ if (!parse_custom_mods (ctx, &ptr, end))
+ FAIL (ctx, g_strdup ("Type: Failed to parse pointer custom attr"));
+
if (!parse_type (ctx, &ptr, end))
FAIL (ctx, g_strdup_printf ("GenericInst: invalid generic argument %d", i + 1));
}
if (!safe_read_cint (token, ptr, end))
FAIL (ctx, g_strdup ("Type: Not enough room for the type token"));
- if (!is_valid_coded_index (ctx, TYPEDEF_OR_REF_DESC, token))
+ if (!is_valid_coded_index (ctx, TYPEDEF_OR_REF_DESC, token) || !get_coded_index_token (TYPEDEF_OR_REF_DESC, token))
FAIL (ctx, g_strdup_printf ("Type: invalid TypeDefOrRef token %x", token));
+
+ if (!get_coded_index_token (TYPEDEF_OR_REF_DESC, token))
+ FAIL (ctx, g_strdup_printf ("Type: zero TypeDefOrRef token %x", token));
if (ctx->token) {
if (mono_metadata_token_index (ctx->token) == get_coded_index_token (TYPEDEF_OR_REF_DESC, token) &&
mono_metadata_token_table (ctx->token) == get_coded_index_table (TYPEDEF_OR_REF_DESC, token))
- FAIL (ctx, g_strdup_printf ("Type: Recurside type specification (%x). A type signature can't reference itself", ctx->token));
+ FAIL (ctx, g_strdup_printf ("Type: Recursive type specification (%x). A type signature can't reference itself", ctx->token));
}
break;
}
//it's a byref, update the cursor ptr
- if (type == MONO_TYPE_BYREF)
+ if (type == MONO_TYPE_BYREF) {
*_ptr = ptr;
+ if (!parse_custom_mods (ctx, _ptr, end))
+ return FALSE;
+ }
return parse_type (ctx, _ptr, end);
}
FAIL (ctx, g_strdup ("PropertySig: Could not parse property type"));
for (i = 0; i < param_count; ++i) {
+ if (!parse_custom_mods (ctx, &ptr, end))
+ FAIL (ctx, g_strdup ("Type: Failed to parse pointer custom attr"));
if (!parse_type (ctx, &ptr, end))
FAIL (ctx, g_strdup_printf ("PropertySig: Error parsing arg %d", i));
}
return parse_method_signature (ctx, &ptr, end, FALSE, FALSE);
}
+static gboolean
+is_valid_memberref_method_signature (VerifyContext *ctx, guint32 offset)
+{
+ guint32 size = 0;
+ const char *ptr = NULL, *end;
+
+ if (!decode_signature_header (ctx, offset, &size, &ptr))
+ FAIL (ctx, g_strdup ("MemberRefSig: Could not decode signature header"));
+ end = ptr + size;
+
+ return parse_method_signature (ctx, &ptr, end, TRUE, FALSE);
+}
+
+
static gboolean
is_valid_method_or_field_signature (VerifyContext *ctx, guint32 offset)
{
klass = get_enum_by_encoded_name (ctx, &ptr, end);
if (!klass)
return FALSE;
+ } else if (etype == 0x50 || etype == MONO_TYPE_CLASS) {
+ klass = mono_defaults.systemtype_class;
} else if ((etype >= MONO_TYPE_BOOLEAN && etype <= MONO_TYPE_STRING) || etype == 0x51) {
simple_type.type = etype == 0x51 ? MONO_TYPE_OBJECT : etype;
klass = mono_class_from_mono_type (&simple_type);
klass = get_enum_by_encoded_name (ctx, &ptr, end);
if (!klass)
return FALSE;
+ } else if (etype == 0x50 || etype == MONO_TYPE_CLASS) {
+ klass = mono_defaults.systemtype_class;
} else if ((etype >= MONO_TYPE_BOOLEAN && etype <= MONO_TYPE_STRING) || etype == 0x51) {
simple_type.type = etype == 0x51 ? MONO_TYPE_OBJECT : etype;
klass = mono_class_from_mono_type (&simple_type);
FAIL (ctx, g_strdup ("MethodSpec: Zero generic argument count"));
for (i = 0; i < count; ++i) {
+ if (!parse_custom_mods (ctx, &ptr, end))
+ return FALSE;
if (!parse_type (ctx, &ptr, end))
FAIL (ctx, g_strdup_printf ("MethodSpec: Could not parse parameter %d", i + 1));
}
#define SECTION_HEADER_INVALID_FLAGS 0x3E
static gboolean
-is_valid_method_header (VerifyContext *ctx, guint32 rva)
+is_valid_method_header (VerifyContext *ctx, guint32 rva, guint32 *locals_token)
{
unsigned local_vars_tok, code_size, offset = mono_cli_rva_image_map (ctx->image, rva);
unsigned header = 0;
unsigned fat_header = 0, size = 0, max_stack;
const char *ptr = NULL, *end;
+ *locals_token = 0;
+
if (offset == INVALID_ADDRESS)
FAIL (ctx, g_strdup ("MethodHeader: Invalid RVA"));
FAIL (ctx, g_strdup_printf ("MethodHeader: Invalid local vars signature table 0x%x", ((local_vars_tok >> 24) & 0xFF)));
if ((local_vars_tok & 0xFFFFFF) > ctx->image->tables [MONO_TABLE_STANDALONESIG].rows)
FAIL (ctx, g_strdup_printf ("MethodHeader: Invalid local vars signature points to invalid row 0x%x", local_vars_tok & 0xFFFFFF));
+ if (!(local_vars_tok & 0xFFFFFF))
+ FAIL (ctx, g_strdup_printf ("MethodHeader: Invalid local vars signature with zero index"));
+ *locals_token = local_vars_tok & 0xFFFFFF;
}
if (fat_header & FAT_HEADER_INVALID_FLAGS)
verify_typeref_table (VerifyContext *ctx)
{
MonoTableInfo *table = &ctx->image->tables [MONO_TABLE_TYPEREF];
- guint32 data [MONO_TYPEREF_SIZE];
- int i;
+ MonoError error;
+ guint32 i;
for (i = 0; i < table->rows; ++i) {
- mono_metadata_decode_row (table, i, data, MONO_TYPEREF_SIZE);
- if (!is_valid_coded_index (ctx, RES_SCOPE_DESC, data [MONO_TYPEREF_SCOPE]))
- ADD_ERROR (ctx, g_strdup_printf ("Invalid typeref row %d coded index 0x%08x", i, data [MONO_TYPEREF_SCOPE]));
-
- if (!get_coded_index_token (RES_SCOPE_DESC, data [MONO_TYPEREF_SCOPE]))
- ADD_ERROR (ctx, g_strdup_printf ("The metadata verifier doesn't support null ResolutionScope tokens for typeref row %d", i));
-
- if (!data [MONO_TYPEREF_NAME] || !is_valid_non_empty_string (ctx, data [MONO_TYPEREF_NAME]))
- ADD_ERROR (ctx, g_strdup_printf ("Invalid typeref row %d name token 0x%08x", i, data [MONO_TYPEREF_NAME]));
-
- if (data [MONO_TYPEREF_NAMESPACE] && !is_valid_non_empty_string (ctx, data [MONO_TYPEREF_NAMESPACE]))
- ADD_ERROR (ctx, g_strdup_printf ("Invalid typeref row %d namespace token 0x%08x", i, data [MONO_TYPEREF_NAMESPACE]));
+ mono_verifier_verify_typeref_row (ctx->image, i, &error);
+ add_from_mono_error (ctx, &error);
}
}
if (data [MONO_TYPEDEF_EXTENDS] && !is_valid_coded_index (ctx, TYPEDEF_OR_REF_DESC, data [MONO_TYPEDEF_EXTENDS]))
ADD_ERROR (ctx, g_strdup_printf ("Invalid typedef row %d extend field coded index 0x%08x", i, data [MONO_TYPEDEF_EXTENDS]));
+ if (data [MONO_TYPEDEF_EXTENDS] && !get_coded_index_token (TYPEDEF_OR_REF_DESC, data [MONO_TYPEDEF_EXTENDS]))
+ ADD_ERROR (ctx, g_strdup_printf ("Invalid typedef row %d zero coded extend field coded index 0x%08x", i, data [MONO_TYPEDEF_EXTENDS]));
+
visibility = data [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
if ((visibility >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visibility <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM) &&
search_sorted_table (ctx, MONO_TABLE_NESTEDCLASS, MONO_NESTED_CLASS_NESTED, i + 1) == -1)
}
/*bits 8,9,10,11,13,14,15*/
-#define INVALID_METHOD_IMPLFLAG_BITS ((1 << 8) | (1 << 9) | (1 << 10) | (1 << 11) | (1 << 13) | (1 << 14) | (1 << 15))
+#define INVALID_METHOD_IMPLFLAG_BITS ((1 << 9) | (1 << 10) | (1 << 11) | (1 << 13) | (1 << 14) | (1 << 15))
static void
verify_method_table (VerifyContext *ctx)
{
ADD_ERROR (ctx, g_strdup_printf ("Invalid method row %d is a global method but not Static", i));
if (flags & (METHOD_ATTRIBUTE_ABSTRACT | METHOD_ATTRIBUTE_VIRTUAL))
ADD_ERROR (ctx, g_strdup_printf ("Invalid method row %d is a global method but is Abstract or Virtual", i));
- if (!(access == METHOD_ATTRIBUTE_COMPILER_CONTROLLED || access == METHOD_ATTRIBUTE_PUBLIC || access == METHOD_ATTRIBUTE_PRIVATE))
- ADD_ERROR (ctx, g_strdup_printf ("Invalid method row %d is a global method but not CompilerControled, Public or Private", i));
+ if (access == METHOD_ATTRIBUTE_FAMILY || access == METHOD_ATTRIBUTE_FAM_AND_ASSEM || access == METHOD_ATTRIBUTE_FAM_OR_ASSEM)
+ ADD_ERROR (ctx, g_strdup_printf ("Invalid method row %d is a global method but not CompilerControled, Public, Private or Assembly", i));
}
//TODO check valuetype for synchronized
//TODO check signature contents
if (rva) {
- if (flags & METHOD_ATTRIBUTE_ABSTRACT)
- ADD_ERROR (ctx, g_strdup_printf ("Invalid method row %d has RVA != 0 but is Abstract", i));
+ if ((flags & (METHOD_ATTRIBUTE_ABSTRACT | METHOD_ATTRIBUTE_PINVOKE_IMPL)) || (implflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))
+ ADD_ERROR (ctx, g_strdup_printf ("Invalid method row %d has RVA != 0 but is either Abstract, InternalCall or PinvokeImpl", i));
if (code_type == METHOD_IMPL_ATTRIBUTE_OPTIL)
ADD_ERROR (ctx, g_strdup_printf ("Invalid method row %d has RVA != 0 but is CodeTypeMask is neither Native, CIL or Runtime", i));
} else {
verify_method_table_full (VerifyContext *ctx)
{
MonoTableInfo *table = &ctx->image->tables [MONO_TABLE_METHOD];
- guint32 data [MONO_METHOD_SIZE], rva;
+ guint32 data [MONO_METHOD_SIZE], rva, locals_token;
int i;
for (i = 0; i < table->rows; ++i) {
if (!data [MONO_METHOD_SIGNATURE] || !is_valid_method_signature (ctx, data [MONO_METHOD_SIGNATURE]))
ADD_ERROR (ctx, g_strdup_printf ("Invalid method row %d invalid signature token 0x%08x", i, data [MONO_METHOD_SIGNATURE]));
- if (rva && !is_valid_method_header (ctx, rva))
+ if (rva && !is_valid_method_header (ctx, rva, &locals_token))
ADD_ERROR (ctx, g_strdup_printf ("Invalid method row %d RVA points to an invalid method header", i));
}
}
for (i = 0; i < table->rows; ++i) {
mono_metadata_decode_row (table, i, data, MONO_INTERFACEIMPL_SIZE);
if (data [MONO_INTERFACEIMPL_CLASS] && data [MONO_INTERFACEIMPL_CLASS] > ctx->image->tables [MONO_TABLE_TYPEDEF].rows)
- ADD_ERROR (ctx, g_strdup_printf ("Invalid InterfaceImpl row %d Class field 0x%08x", i, data [MONO_TABLE_TYPEDEF]));
+ ADD_ERROR (ctx, g_strdup_printf ("Invalid InterfaceImpl row %d Class field 0x%08x", i, data [MONO_INTERFACEIMPL_CLASS]));
if (!is_valid_coded_index (ctx, TYPEDEF_OR_REF_DESC, data [MONO_INTERFACEIMPL_INTERFACE]))
ADD_ERROR (ctx, g_strdup_printf ("Invalid InterfaceImpl row %d Inteface field coded index 0x%08x", i, data [MONO_INTERFACEIMPL_INTERFACE]));
if (!is_valid_coded_index (ctx, HAS_CATTR_DESC, data [MONO_CUSTOM_ATTR_PARENT]))
ADD_ERROR (ctx, g_strdup_printf ("Invalid CustomAttribute row %d Parent field 0x%08x", i, data [MONO_CUSTOM_ATTR_PARENT]));
- if (!is_valid_coded_index (ctx, CATTR_TYPE_DESC, data [MONO_CUSTOM_ATTR_TYPE]))
- ADD_ERROR (ctx, g_strdup_printf ("Invalid CustomAttribute row %d Parent field 0x%08x", i, data [MONO_CUSTOM_ATTR_PARENT]));
+ if (!is_valid_coded_index (ctx, CATTR_TYPE_DESC, data [MONO_CUSTOM_ATTR_TYPE]) || !get_coded_index_token (CATTR_TYPE_DESC, data [MONO_CUSTOM_ATTR_TYPE]))
+ ADD_ERROR (ctx, g_strdup_printf ("Invalid CustomAttribute row %d Type field 0x%08x", i, data [MONO_CUSTOM_ATTR_TYPE]));
if (data [MONO_CUSTOM_ATTR_VALUE] && !is_valid_blob_object (ctx, data [MONO_CUSTOM_ATTR_VALUE], 0))
ADD_ERROR (ctx, g_strdup_printf ("Invalid CustomAttribute row %d invalid value blob 0x%x", i, data [MONO_CUSTOM_ATTR_VALUE]));
if (!found_add)
ADD_ERROR (ctx, g_strdup_printf ("Invalid Event row %d has no AddOn associated method", i));
if (!found_remove)
- ADD_ERROR (ctx, g_strdup_printf ("Invalid Event row %d has no AddOn associated method", i));
+ ADD_ERROR (ctx, g_strdup_printf ("Invalid Event row %d has no RemoveOn associated method", i));
}
}
mono_metadata_decode_row (table, i, data, MONO_MODULEREF_SIZE);
if (!is_valid_non_empty_string (ctx, data[MONO_MODULEREF_NAME]))
- ADD_ERROR (ctx, g_strdup_printf ("Invalid MethodImpl row %d Class field %08x", i, data [MONO_TABLE_TYPEDEF]));
+ ADD_ERROR (ctx, g_strdup_printf ("Invalid ModuleRef row %d name field %08x", i, data [MONO_MODULEREF_NAME]));
}
}
ctx->token = 0;
}
-#define INVALID_IMPLMAP_FLAGS_BITS ~((1 << 0) | (1 << 1) | (1 << 2) | (1 << 6) | (1 << 8) | (1 << 9) | (1 << 10))
+#define INVALID_IMPLMAP_FLAGS_BITS ~((1 << 0) | (1 << 1) | (1 << 2) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 8) | (1 << 9) | (1 << 10) | (1 << 12) | (1 << 13))
static void
verify_implmap_table (VerifyContext *ctx)
{
if (!is_valid_non_empty_string (ctx, data [MONO_IMPLMAP_NAME]))
ADD_ERROR (ctx, g_strdup_printf ("Invalid ImplMap row %d ImportName Token %x", i, data [MONO_IMPLMAP_NAME]));
- if (!data [MONO_IMPLMAP_SCOPE] || data [MONO_IMPLMAP_SCOPE] > ctx->image->tables [MONO_TABLE_MODULEREF].rows + 1)
+ if (!data [MONO_IMPLMAP_SCOPE] || data [MONO_IMPLMAP_SCOPE] > ctx->image->tables [MONO_TABLE_MODULEREF].rows)
ADD_ERROR (ctx, g_strdup_printf ("Invalid ImplMap row %d Invalid ImportScope token %x", i, data [MONO_IMPLMAP_SCOPE]));
}
}
}
}
-#define INVALID_ASSEMBLY_FLAGS_BITS ~((1 << 0) | (1 << 4) | (1 << 8) | (1 << 14) | (1 << 15))
+#define INVALID_ASSEMBLY_FLAGS_BITS ~((1 << 0) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7) | (1 << 8) | (1 << 14) | (1 << 15))
static void
verify_assembly_table (VerifyContext *ctx)
{
}
}
-#define INVALID_ASSEMBLYREF_FLAGS_BITS ~(1)
+#define INVALID_ASSEMBLYREF_FLAGS_BITS ~((1 << 0) | (1 << 8) | (1 << 14) | (1 << 15))
static void
verify_assemblyref_table (VerifyContext *ctx)
{
MonoTableInfo *table = &ctx->image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
guint32 data [MONO_GENPARCONSTRAINT_SIZE];
int i;
+ guint32 last_owner = 0, last_constraint = 0;
for (i = 0; i < table->rows; ++i) {
mono_metadata_decode_row (table, i, data, MONO_GENPARCONSTRAINT_SIZE);
if (!data [MONO_GENPARCONSTRAINT_GENERICPAR] || data [MONO_GENPARCONSTRAINT_GENERICPAR] > ctx->image->tables [MONO_TABLE_GENERICPARAM].rows)
- ADD_ERROR (ctx, g_strdup_printf ("GenericParamConstraint table row %d has invalid Owner token %08x", i, data [MONO_TABLE_GENERICPARAM]));
+ ADD_ERROR (ctx, g_strdup_printf ("GenericParamConstraint table row %d has invalid Owner token %08x", i, data [MONO_GENPARCONSTRAINT_GENERICPAR]));
if (!is_valid_coded_index (ctx, TYPEDEF_OR_REF_DESC, data [MONO_GENPARCONSTRAINT_CONSTRAINT]))
ADD_ERROR (ctx, g_strdup_printf ("GenericParamConstraint table row %d has invalid Constraint token %08x", i, data [MONO_GENPARCONSTRAINT_CONSTRAINT]));
if (!get_coded_index_token (TYPEDEF_OR_REF_DESC, data [MONO_GENPARCONSTRAINT_CONSTRAINT]))
ADD_ERROR (ctx, g_strdup_printf ("GenericParamConstraint table row %d has null Constraint token", i));
+
+ if (last_owner > data [MONO_GENPARCONSTRAINT_GENERICPAR])
+ ADD_ERROR (ctx, g_strdup_printf ("GenericParamConstraint table row %d is not properly sorted. Previous value of the owner column is 0x%08x current value is 0x%08x", i, last_owner, data [MONO_GENPARCONSTRAINT_GENERICPAR]));
+
+ if (last_owner == data [MONO_GENPARCONSTRAINT_GENERICPAR]) {
+ if (last_constraint == data [MONO_GENPARCONSTRAINT_CONSTRAINT])
+ ADD_ERROR (ctx, g_strdup_printf ("GenericParamConstraint table row %d has duplicate constraint 0x%08x", i, last_constraint));
+ } else {
+ last_owner = data [MONO_GENPARCONSTRAINT_GENERICPAR];
+ }
+ last_constraint = data [MONO_GENPARCONSTRAINT_CONSTRAINT];
}
}
static void
verify_tables_data_global_constraints (VerifyContext *ctx)
{
- verify_typeref_table_global_constraints (ctx);
- CHECK_ERROR ();
verify_typedef_table_global_constraints (ctx);
}
-
+
+static void
+verify_tables_data_global_constraints_full (VerifyContext *ctx)
+{
+ verify_typeref_table (ctx);
+ verify_typeref_table_global_constraints (ctx);
+}
+
static void
verify_tables_data (VerifyContext *ctx)
{
verify_module_table (ctx);
CHECK_ERROR ();
+ /*Obfuscators love to place broken stuff in the typeref table
verify_typeref_table (ctx);
- CHECK_ERROR ();
+ CHECK_ERROR ();*/
verify_typedef_table (ctx);
CHECK_ERROR ();
verify_field_table (ctx);
}
static void
-init_verify_context (VerifyContext *ctx, MonoImage *image, GSList **error_list)
+init_verify_context (VerifyContext *ctx, MonoImage *image, gboolean report_error)
{
memset (ctx, 0, sizeof (VerifyContext));
ctx->image = image;
- ctx->report_error = error_list != NULL;
+ ctx->report_error = report_error;
ctx->report_warning = FALSE; //export this setting in the API
ctx->valid = 1;
ctx->size = image->raw_data_len;
return ctx->valid;
}
+static gboolean
+cleanup_context_checked (VerifyContext *ctx, MonoError *error)
+{
+ g_free (ctx->sections);
+ if (ctx->errors) {
+ MonoVerifyInfo *info = ctx->errors->data;
+ mono_error_set_bad_image (error, ctx->image, "%s", info->message);
+ mono_free_verify_list (ctx->errors);
+ }
+ return ctx->valid;
+}
+
gboolean
mono_verifier_verify_pe_data (MonoImage *image, GSList **error_list)
{
if (!mono_verifier_is_enabled_for_image (image))
return TRUE;
- init_verify_context (&ctx, image, error_list);
+ init_verify_context (&ctx, image, error_list != NULL);
ctx.stage = STAGE_PE;
verify_msdos_header (&ctx);
if (!mono_verifier_is_enabled_for_image (image))
return TRUE;
- init_verify_context (&ctx, image, error_list);
+ init_verify_context (&ctx, image, error_list != NULL);
ctx.stage = STAGE_CLI;
verify_cli_header (&ctx);
if (!mono_verifier_is_enabled_for_image (image))
return TRUE;
- init_verify_context (&ctx, image, error_list);
+ init_verify_context (&ctx, image, error_list != NULL);
ctx.stage = STAGE_TABLES;
verify_tables_data (&ctx);
if (!mono_verifier_is_enabled_for_image (image))
return TRUE;
- init_verify_context (&ctx, image, error_list);
+ init_verify_context (&ctx, image, error_list != NULL);
ctx.stage = STAGE_TABLES;
verify_typedef_table_full (&ctx);
verify_typespec_table_full (&ctx);
CHECK_STATE ();
verify_method_spec_table_full (&ctx);
+ CHECK_STATE ();
+ verify_tables_data_global_constraints_full (&ctx);
cleanup:
return cleanup_context (&ctx, error_list);
if (!mono_verifier_is_enabled_for_image (image))
return TRUE;
- init_verify_context (&ctx, image, error_list);
+ init_verify_context (&ctx, image, error_list != NULL);
ctx.stage = STAGE_TABLES;
is_valid_field_signature (&ctx, offset);
mono_verifier_verify_method_header (MonoImage *image, guint32 offset, GSList **error_list)
{
VerifyContext ctx;
+ guint32 locals_token;
if (!mono_verifier_is_enabled_for_image (image))
return TRUE;
- init_verify_context (&ctx, image, error_list);
+ init_verify_context (&ctx, image, error_list != NULL);
ctx.stage = STAGE_TABLES;
- is_valid_method_header (&ctx, offset);
+ is_valid_method_header (&ctx, offset, &locals_token);
+ if (locals_token) {
+ guint32 sig_offset = mono_metadata_decode_row_col (&image->tables [MONO_TABLE_STANDALONESIG], locals_token - 1, MONO_STAND_ALONE_SIGNATURE);
+ is_valid_standalonesig_blob (&ctx, sig_offset);
+ }
+
return cleanup_context (&ctx, error_list);
}
gboolean
-mono_verifier_verify_method_signature (MonoImage *image, guint32 offset, GSList **error_list)
+mono_verifier_verify_method_signature (MonoImage *image, guint32 offset, MonoError *error)
{
VerifyContext ctx;
+ mono_error_init (error);
+
if (!mono_verifier_is_enabled_for_image (image))
return TRUE;
- init_verify_context (&ctx, image, error_list);
+ init_verify_context (&ctx, image, TRUE);
ctx.stage = STAGE_TABLES;
is_valid_method_signature (&ctx, offset);
+ /*XXX This returns a bad image exception, it might be the case that the right exception is method load.*/
+ return cleanup_context_checked (&ctx, error);
+}
+
+gboolean
+mono_verifier_verify_memberref_method_signature (MonoImage *image, guint32 offset, GSList **error_list)
+{
+ VerifyContext ctx;
+
+ if (!mono_verifier_is_enabled_for_image (image))
+ return TRUE;
+
+ init_verify_context (&ctx, image, error_list != NULL);
+ ctx.stage = STAGE_TABLES;
+
+ is_valid_memberref_method_signature (&ctx, offset);
return cleanup_context (&ctx, error_list);
}
gboolean
-mono_verifier_verify_memberref_signature (MonoImage *image, guint32 offset, GSList **error_list)
+mono_verifier_verify_memberref_field_signature (MonoImage *image, guint32 offset, GSList **error_list)
{
VerifyContext ctx;
if (!mono_verifier_is_enabled_for_image (image))
return TRUE;
- init_verify_context (&ctx, image, error_list);
+ init_verify_context (&ctx, image, error_list != NULL);
ctx.stage = STAGE_TABLES;
- is_valid_method_or_field_signature (&ctx, offset);
+ is_valid_field_signature (&ctx, offset);
return cleanup_context (&ctx, error_list);
}
if (!mono_verifier_is_enabled_for_image (image))
return TRUE;
- init_verify_context (&ctx, image, error_list);
+ init_verify_context (&ctx, image, error_list != NULL);
ctx.stage = STAGE_TABLES;
is_valid_standalonesig_blob (&ctx, offset);
if (!mono_verifier_is_enabled_for_image (image))
return TRUE;
- init_verify_context (&ctx, image, error_list);
+ init_verify_context (&ctx, image, error_list != NULL);
ctx.stage = STAGE_TABLES;
ctx.token = token;
if (!mono_verifier_is_enabled_for_image (image))
return TRUE;
- init_verify_context (&ctx, image, error_list);
+ init_verify_context (&ctx, image, error_list != NULL);
ctx.stage = STAGE_TABLES;
is_valid_methodspec_blob (&ctx, offset);
if (!mono_verifier_is_enabled_for_image (image))
return TRUE;
- init_verify_context (&ctx, image, error_list);
+ init_verify_context (&ctx, image, error_list != NULL);
ctx.stage = STAGE_TABLES;
verify_user_string (&ctx, offset);
if (!mono_verifier_is_enabled_for_image (image))
return TRUE;
- init_verify_context (&ctx, image, error_list);
+ init_verify_context (&ctx, image, error_list != NULL);
ctx.stage = STAGE_TABLES;
is_valid_cattr_blob (&ctx, offset);
if (!mono_verifier_is_enabled_for_image (image))
return TRUE;
- init_verify_context (&ctx, image, error_list);
+ init_verify_context (&ctx, image, error_list != NULL);
ctx.stage = STAGE_TABLES;
is_valid_cattr_content (&ctx, ctor, (const char*)data, size);
return TRUE;
}
+gboolean
+mono_verifier_verify_typeref_row (MonoImage *image, guint32 row, MonoError *error)
+{
+ MonoTableInfo *table = &image->tables [MONO_TABLE_TYPEREF];
+ guint32 data [MONO_TYPEREF_SIZE];
+
+ mono_error_init (error);
+
+ if (!mono_verifier_is_enabled_for_image (image))
+ return TRUE;
+
+ if (row >= table->rows) {
+ mono_error_set_bad_image (error, image, "Invalid typeref row %d - table has %d rows", row, table->rows);
+ return FALSE;
+ }
+
+ mono_metadata_decode_row (table, row, data, MONO_TYPEREF_SIZE);
+ if (!is_valid_coded_index_with_image (image, RES_SCOPE_DESC, data [MONO_TYPEREF_SCOPE])) {
+ mono_error_set_bad_image (error, image, "Invalid typeref row %d coded index 0x%08x", row, data [MONO_TYPEREF_SCOPE]);
+ return FALSE;
+ }
+
+ if (!get_coded_index_token (RES_SCOPE_DESC, data [MONO_TYPEREF_SCOPE])) {
+ mono_error_set_bad_image (error, image, "The metadata verifier doesn't support null ResolutionScope tokens for typeref row %d", row);
+ return FALSE;
+ }
+
+ if (!data [MONO_TYPEREF_NAME] || !is_valid_string_full_with_image (image, data [MONO_TYPEREF_NAME], FALSE)) {
+ mono_error_set_bad_image (error, image, "Invalid typeref row %d name token 0x%08x", row, data [MONO_TYPEREF_NAME]);
+ return FALSE;
+ }
+
+ if (data [MONO_TYPEREF_NAMESPACE] && !is_valid_string_full_with_image (image, data [MONO_TYPEREF_NAMESPACE], FALSE)) {
+ mono_error_set_bad_image (error, image, "Invalid typeref row %d namespace token 0x%08x", row, data [MONO_TYPEREF_NAMESPACE]);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+/*Perform additional verification including metadata ones*/
+gboolean
+mono_verifier_verify_methodimpl_row (MonoImage *image, guint32 row, MonoError *error)
+{
+ MonoMethod *declaration, *body;
+ MonoMethodSignature *body_sig, *decl_sig;
+ MonoTableInfo *table = &image->tables [MONO_TABLE_METHODIMPL];
+ guint32 data [MONO_METHODIMPL_SIZE];
+
+ mono_error_init (error);
+
+ if (!mono_verifier_is_enabled_for_image (image))
+ return TRUE;
+
+ if (row >= table->rows) {
+ mono_error_set_bad_image (error, image, "Invalid methodimpl row %d - table has %d rows", row, table->rows);
+ return FALSE;
+ }
+
+ mono_metadata_decode_row (table, row, data, MONO_METHODIMPL_SIZE);
+
+ body = method_from_method_def_or_ref (image, data [MONO_METHODIMPL_BODY], NULL);
+ if (!body || mono_loader_get_last_error ()) {
+ mono_loader_clear_error ();
+ mono_error_set_bad_image (error, image, "Invalid methodimpl body for row %x", row);
+ return FALSE;
+ }
+
+ declaration = method_from_method_def_or_ref (image, data [MONO_METHODIMPL_DECLARATION], NULL);
+ if (!declaration || mono_loader_get_last_error ()) {
+ mono_loader_clear_error ();
+ mono_error_set_bad_image (error, image, "Invalid methodimpl declaration for row %x", row);
+ return FALSE;
+ }
+
+ /* FIXME
+ mono_class_setup_supertypes (class);
+ if (!mono_class_has_parent (class, body->klass)) {
+ mono_error_set_bad_image (error, image, "Invalid methodimpl body doesn't belong to parent for row %x", row);
+ return FALSE;
+ }*/
+
+ if (!(body_sig = mono_method_signature_checked (body, error))) {
+ return FALSE;
+ }
+
+ if (!(decl_sig = mono_method_signature_checked (declaration, error))) {
+ return FALSE;
+ }
+
+ if (!mono_verifier_is_signature_compatible (decl_sig, body_sig)) {
+ mono_error_set_bad_image (error, image, "Invalid methodimpl body signature not compatible with declaration row %x", row);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
#else
gboolean
mono_verifier_verify_table_data (MonoImage *image, GSList **error_list)
}
gboolean
-mono_verifier_verify_method_signature (MonoImage *image, guint32 offset, GSList **error_list)
-{
- return TRUE;
-}
-
-gboolean
-mono_verifier_verify_memberref_signature (MonoImage *image, guint32 offset, GSList **error_list)
+mono_verifier_verify_method_signature (MonoImage *image, guint32 offset, MonoError *error)
{
+ mono_error_init (error);
return TRUE;
}
}
+gboolean
+mono_verifier_verify_typeref_row (MonoImage *image, guint32 row, MonoError *error)
+{
+ mono_error_init (error);
+ return TRUE;
+}
+
+gboolean
+mono_verifier_verify_methodimpl_row (MonoImage *image, guint32 row, MonoError *error)
+{
+ mono_error_init (error);
+ return TRUE;
+}
+
+gboolean
+mono_verifier_verify_memberref_method_signature (MonoImage *image, guint32 offset, GSList **error_list)
+{
+ return TRUE;
+}
+
+gboolean
+mono_verifier_verify_memberref_field_signature (MonoImage *image, guint32 offset, GSList **error_list)
+{
+ return TRUE;
+}
+
#endif /* DISABLE_VERIFIER */
projects / mono.git / blobdiff