/
pedump.c
744 lines (637 loc) · 20.3 KB
/
pedump.c
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/*
* pedump.c: Dumps the contents of an extended PE/COFF file
*
* Author:
* Miguel de Icaza (miguel@ximian.com)
*
* Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
* Copyright 2004-2009 Novell, Inc (http://www.novell.com)
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "image.h"
#include <glib.h>
#include "cil-coff.h"
#include "mono-endian.h"
#include "verify.h"
#include <mono/metadata/class.h>
#include <mono/metadata/debug-helpers.h>
#include <mono/metadata/tokentype.h>
#include <mono/metadata/appdomain.h>
#include <mono/metadata/assembly.h>
#include <mono/metadata/metadata-internals.h>
#include <mono/metadata/class-internals.h>
#include <mono/metadata/verify-internals.h>
#include <mono/metadata/marshal.h>
#include "mono/utils/mono-digest.h"
#include <mono/utils/mono-mmap.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
gboolean dump_data = TRUE;
gboolean verify_pe = FALSE;
gboolean verify_metadata = FALSE;
gboolean verify_code = FALSE;
gboolean verify_partial_md = FALSE;
static MonoAssembly *pedump_preload (MonoAssemblyName *aname, gchar **assemblies_path, gpointer user_data);
static void pedump_assembly_load_hook (MonoAssembly *assembly, gpointer user_data);
static MonoAssembly *pedump_assembly_search_hook (MonoAssemblyName *aname, gpointer user_data);
/* unused
static void
hex_dump (const char *buffer, int base, int count)
{
int i;
for (i = 0; i < count; i++){
if ((i % 16) == 0)
printf ("\n0x%08x: ", (unsigned char) base + i);
printf ("%02x ", (unsigned char) (buffer [i]));
}
}
*/
static void
hex8 (const char *label, unsigned char x)
{
printf ("\t%s: 0x%02x\n", label, (unsigned char) x);
}
static void
hex16 (const char *label, guint16 x)
{
printf ("\t%s: 0x%04x\n", label, x);
}
static void
hex32 (const char *label, guint32 x)
{
printf ("\t%s: 0x%08x\n", label, x);
}
static void
dump_coff_header (MonoCOFFHeader *coff)
{
printf ("\nCOFF Header:\n");
hex16 (" Machine", coff->coff_machine);
hex16 (" Sections", coff->coff_sections);
hex32 (" Time stamp", coff->coff_time);
hex32 ("Pointer to Symbol Table", coff->coff_symptr);
hex32 (" Symbol Count", coff->coff_symcount);
hex16 (" Optional Header Size", coff->coff_opt_header_size);
hex16 (" Characteristics", coff->coff_attributes);
}
static void
dump_pe_header (MonoPEHeader *pe)
{
printf ("\nPE Header:\n");
hex16 (" Magic (0x010b)", pe->pe_magic);
hex8 (" LMajor (6)", pe->pe_major);
hex8 (" LMinor (0)", pe->pe_minor);
hex32 (" Code Size", pe->pe_code_size);
hex32 (" Initialized Data Size", pe->pe_data_size);
hex32 ("Uninitialized Data Size", pe->pe_uninit_data_size);
hex32 (" Entry Point RVA", pe->pe_rva_entry_point);
hex32 (" Code Base RVA", pe->pe_rva_code_base);
hex32 (" Data Base RVA", pe->pe_rva_data_base);
printf ("\n");
}
static void
dump_nt_header (MonoPEHeaderNT *nt)
{
printf ("\nNT Header:\n");
hex32 (" Image Base (0x400000)", nt->pe_image_base);
hex32 ("Section Alignment (8192)", nt->pe_section_align);
hex32 (" File Align (512/4096)", nt->pe_file_alignment);
hex16 (" OS Major (4)", nt->pe_os_major);
hex16 (" OS Minor (0)", nt->pe_os_minor);
hex16 (" User Major (0)", nt->pe_user_major);
hex16 (" User Minor (0)", nt->pe_user_minor);
hex16 (" Subsys major (4)", nt->pe_subsys_major);
hex16 (" Subsys minor (0)", nt->pe_subsys_minor);
hex32 (" Reserverd", nt->pe_reserved_1);
hex32 (" Image Size", nt->pe_image_size);
hex32 (" Header Size", nt->pe_header_size);
hex32 (" Checksum (0)", nt->pe_checksum);
hex16 (" Subsystem", nt->pe_subsys_required);
hex16 (" DLL Flags (0)", nt->pe_dll_flags);
hex32 (" Stack Reserve Size (1M)", nt->pe_stack_reserve);
hex32 ("Stack commit Size (4096)", nt->pe_stack_commit);
hex32 (" Heap Reserve Size (1M)", nt->pe_heap_reserve);
hex32 (" Heap Commit Size (4096)", nt->pe_heap_commit);
hex32 (" Loader flags (0x1)", nt->pe_loader_flags);
hex32 (" Data Directories (16)", nt->pe_data_dir_count);
}
static void
dent (const char *label, MonoPEDirEntry de)
{
printf ("\t%s: 0x%08x [0x%08x]\n", label, de.rva, de.size);
}
static void
dump_blob (const char *desc, const char* p, guint32 size)
{
int i;
printf ("%s", desc);
if (!p) {
printf (" none\n");
return;
}
for (i = 0; i < size; ++i) {
if (!(i % 16))
printf ("\n\t");
printf (" %02X", p [i] & 0xFF);
}
printf ("\n");
}
static void
dump_public_key (MonoImage *m)
{
guint32 size;
const char *p;
p = mono_image_get_public_key (m, &size);
dump_blob ("\nPublic key:", p, size);
}
static void
dump_strong_name (MonoImage *m)
{
guint32 size;
const char *p;
p = mono_image_get_strong_name (m, &size);
dump_blob ("\nStrong name:", p, size);
}
static void
dump_datadir (MonoPEDatadir *dd)
{
printf ("\nData directories:\n");
dent (" Export Table", dd->pe_export_table);
dent (" Import Table", dd->pe_import_table);
dent (" Resource Table", dd->pe_resource_table);
dent (" Exception Table", dd->pe_exception_table);
dent ("Certificate Table", dd->pe_certificate_table);
dent (" Reloc Table", dd->pe_reloc_table);
dent (" Debug", dd->pe_debug);
dent (" Copyright", dd->pe_copyright);
dent (" Global Ptr", dd->pe_global_ptr);
dent (" TLS Table", dd->pe_tls_table);
dent ("Load Config Table", dd->pe_load_config_table);
dent (" Bound Import", dd->pe_bound_import);
dent (" IAT", dd->pe_iat);
dent ("Delay Import Desc", dd->pe_delay_import_desc);
dent (" CLI Header", dd->pe_cli_header);
}
static void
dump_dotnet_header (MonoDotNetHeader *header)
{
dump_coff_header (&header->coff);
dump_pe_header (&header->pe);
dump_nt_header (&header->nt);
dump_datadir (&header->datadir);
}
static void
dump_section_table (MonoSectionTable *st)
{
guint32 flags = st->st_flags;
printf ("\n\tName: %s\n", st->st_name);
hex32 (" Virtual Size", st->st_virtual_size);
hex32 ("Virtual Address", st->st_virtual_address);
hex32 (" Raw Data Size", st->st_raw_data_size);
hex32 (" Raw Data Ptr", st->st_raw_data_ptr);
hex32 (" Reloc Ptr", st->st_reloc_ptr);
hex32 (" LineNo Ptr", st->st_lineno_ptr);
hex16 (" Reloc Count", st->st_reloc_count);
hex16 (" Line Count", st->st_line_count);
printf ("\tFlags: %s%s%s%s%s%s%s%s%s%s\n",
(flags & SECT_FLAGS_HAS_CODE) ? "code, " : "",
(flags & SECT_FLAGS_HAS_INITIALIZED_DATA) ? "data, " : "",
(flags & SECT_FLAGS_HAS_UNINITIALIZED_DATA) ? "bss, " : "",
(flags & SECT_FLAGS_MEM_DISCARDABLE) ? "discard, " : "",
(flags & SECT_FLAGS_MEM_NOT_CACHED) ? "nocache, " : "",
(flags & SECT_FLAGS_MEM_NOT_PAGED) ? "nopage, " : "",
(flags & SECT_FLAGS_MEM_SHARED) ? "shared, " : "",
(flags & SECT_FLAGS_MEM_EXECUTE) ? "exec, " : "",
(flags & SECT_FLAGS_MEM_READ) ? "read, " : "",
(flags & SECT_FLAGS_MEM_WRITE) ? "write" : "");
}
static void
dump_sections (MonoCLIImageInfo *iinfo)
{
const int top = iinfo->cli_header.coff.coff_sections;
int i;
for (i = 0; i < top; i++)
dump_section_table (&iinfo->cli_section_tables [i]);
}
static void
dump_cli_header (MonoCLIHeader *ch)
{
printf ("\n");
printf (" CLI header size: %d\n", ch->ch_size);
printf (" Runtime required: %d.%d\n", ch->ch_runtime_major, ch->ch_runtime_minor);
printf (" Flags: %s, %s, %s, %s\n",
(ch->ch_flags & CLI_FLAGS_ILONLY ? "ilonly" : "contains native"),
(ch->ch_flags & CLI_FLAGS_32BITREQUIRED ? "32bits" : "32/64"),
(ch->ch_flags & CLI_FLAGS_TRACKDEBUGDATA ? "trackdebug" : "no-trackdebug"),
(ch->ch_flags & CLI_FLAGS_STRONGNAMESIGNED ? "strongnamesigned" : "notsigned"));
dent (" Metadata", ch->ch_metadata);
hex32 ("Entry Point Token", ch->ch_entry_point);
dent (" Resources at", ch->ch_resources);
dent (" Strong Name at", ch->ch_strong_name);
dent (" Code Manager at", ch->ch_code_manager_table);
dent (" VTableFixups at", ch->ch_vtable_fixups);
dent (" EAT jumps at", ch->ch_export_address_table_jumps);
}
static void
dsh (const char *label, MonoImage *meta, MonoStreamHeader *sh)
{
printf ("%s: 0x%08x - 0x%08x [%d == 0x%08x]\n",
label,
(int)(sh->data - meta->raw_metadata), (int)(sh->data + sh->size - meta->raw_metadata),
sh->size, sh->size);
}
static void
dump_metadata_header (MonoImage *meta)
{
printf ("\nMetadata header:\n");
printf (" Version: %d.%d\n", meta->md_version_major, meta->md_version_minor);
printf (" Version string: %s\n", meta->version);
}
static void
dump_metadata_ptrs (MonoImage *meta)
{
printf ("\nMetadata pointers:\n");
dsh ("\tTables (#~)", meta, &meta->heap_tables);
dsh ("\t Strings", meta, &meta->heap_strings);
dsh ("\t Blob", meta, &meta->heap_blob);
dsh ("\tUser string", meta, &meta->heap_us);
dsh ("\t GUID", meta, &meta->heap_guid);
}
static void
dump_metadata (MonoImage *meta)
{
int table;
dump_metadata_header (meta);
dump_metadata_ptrs (meta);
printf ("Rows:\n");
for (table = 0; table < MONO_TABLE_NUM; table++){
if (meta->tables [table].rows == 0)
continue;
printf ("Table %s: %d records (%d bytes, at %x)\n",
mono_meta_table_name (table),
meta->tables [table].rows,
meta->tables [table].row_size,
(unsigned int)(meta->tables [table].base - meta->raw_data)
);
}
}
static void
dump_methoddef (MonoImage *metadata, guint32 token)
{
const char *loc;
if (!token)
return;
loc = mono_metadata_locate_token (metadata, token);
printf ("RVA for Entry Point: 0x%08x\n", read32 (loc));
}
static void
dump_dotnet_iinfo (MonoImage *image)
{
MonoCLIImageInfo *iinfo = image->image_info;
dump_dotnet_header (&iinfo->cli_header);
dump_sections (iinfo);
dump_cli_header (&iinfo->cli_cli_header);
dump_strong_name (image);
dump_public_key (image);
dump_metadata (image);
dump_methoddef (image, iinfo->cli_cli_header.ch_entry_point);
}
static int
dump_verify_info (MonoImage *image, int flags)
{
GSList *errors, *tmp;
int count = 0, verifiable = 0;
const char* desc [] = {
"Ok", "Error", "Warning", NULL, "CLS", NULL, NULL, NULL, "Not Verifiable"
};
if (verify_code) { /* verify code */
int i;
MonoTableInfo *m = &image->tables [MONO_TABLE_METHOD];
for (i = 0; i < m->rows; ++i) {
MonoMethod *method;
mono_loader_clear_error ();
method = mono_get_method (image, MONO_TOKEN_METHOD_DEF | (i+1), NULL);
if (!method) {
g_print ("Warning: Cannot lookup method with token 0x%08x\n", i + 1);
continue;
}
errors = mono_method_verify (method, flags);
if (errors) {
MonoClass *klass = mono_method_get_class (method);
char *name = mono_type_full_name (&klass->byval_arg);
if (mono_method_signature (method) == NULL) {
g_print ("In method: %s::%s(ERROR)\n", name, mono_method_get_name (method));
} else {
char *sig;
sig = mono_signature_get_desc (mono_method_signature (method), FALSE);
g_print ("In method: %s::%s(%s)\n", name, mono_method_get_name (method), sig);
g_free (sig);
}
g_free (name);
}
for (tmp = errors; tmp; tmp = tmp->next) {
MonoVerifyInfo *info = tmp->data;
g_print ("%s: %s\n", desc [info->status], info->message);
if (info->status == MONO_VERIFY_ERROR) {
count++;
verifiable = 3;
}
if(info->status == MONO_VERIFY_NOT_VERIFIABLE) {
if (verifiable < 2)
verifiable = 2;
}
}
mono_free_verify_list (errors);
}
}
if (count)
g_print ("Error count: %d\n", count);
return verifiable;
}
static void
usage (void)
{
printf ("Usage is: pedump [--verify error,warn,cls,all,code,fail-on-verifiable,non-strict,valid-only,metadata] file.exe\n");
exit (1);
}
static int
verify_image_file (const char *fname)
{
GSList *errors = NULL, *tmp;
MonoImage *image;
MonoTableInfo *table;
MonoAssembly *assembly;
MonoImageOpenStatus status;
int i, count = 0;
const char* desc [] = {
"Ok", "Error", "Warning", NULL, "CLS", NULL, NULL, NULL, "Not Verifiable"
};
image = mono_image_open_raw (fname, &status);
if (!image) {
printf ("Could not open %s\n", fname);
return 1;
}
if (!mono_verifier_verify_pe_data (image, &errors))
goto invalid_image;
if (!mono_image_load_pe_data (image)) {
printf ("Could not load pe data for assembly %s\n", fname);
return 1;
}
if (!mono_verifier_verify_cli_data (image, &errors))
goto invalid_image;
if (!mono_image_load_cli_data (image)) {
printf ("Could not load cli data for assembly %s\n", fname);
return 1;
}
if (!mono_verifier_verify_table_data (image, &errors))
goto invalid_image;
mono_image_load_names (image);
/*fake an assembly for class loading to work*/
assembly = g_new0 (MonoAssembly, 1);
assembly->in_gac = FALSE;
assembly->image = image;
image->assembly = assembly;
/*Finish initializing the runtime*/
mono_install_assembly_load_hook (pedump_assembly_load_hook, NULL);
mono_install_assembly_search_hook (pedump_assembly_search_hook, NULL);
mono_init_version ("pedump", image->version);
mono_install_assembly_preload_hook (pedump_preload, GUINT_TO_POINTER (FALSE));
mono_marshal_init ();
if (!verify_partial_md && !mono_verifier_verify_full_table_data (image, &errors))
goto invalid_image;
table = &image->tables [MONO_TABLE_TYPEDEF];
for (i = 1; i <= table->rows; ++i) {
guint32 token = i | MONO_TOKEN_TYPE_DEF;
MonoClass *class = mono_class_get (image, token);
if (!class) {
printf ("Could not load class with token %x\n", token);
continue;
}
mono_class_init (class);
if (class->exception_type != MONO_EXCEPTION_NONE || mono_loader_get_last_error ()) {
printf ("Error verifying class(0x%08x) %s.%s a type load error happened\n", token, class->name_space, class->name);
mono_loader_clear_error ();
++count;
}
mono_class_setup_vtable (class);
if (class->exception_type != MONO_EXCEPTION_NONE || mono_loader_get_last_error ()) {
printf ("Error verifying class(0x%08x) %s.%s a type load error happened\n", token, class->name_space, class->name);
mono_loader_clear_error ();
++count;
}
}
if (count)
return 5;
return 0;
invalid_image:
for (tmp = errors; tmp; tmp = tmp->next) {
MonoVerifyInfo *info = tmp->data;
g_print ("%s: %s\n", desc [info->status], info->message);
if (info->status == MONO_VERIFY_ERROR)
count++;
}
mono_free_verify_list (errors);
if (count)
g_print ("Error count: %d\n", count);
return 1;
}
static gboolean
try_load_from (MonoAssembly **assembly, const gchar *path1, const gchar *path2,
const gchar *path3, const gchar *path4, gboolean refonly)
{
gchar *fullpath;
*assembly = NULL;
fullpath = g_build_filename (path1, path2, path3, path4, NULL);
if (g_file_test (fullpath, G_FILE_TEST_IS_REGULAR))
*assembly = mono_assembly_open_full (fullpath, NULL, refonly);
g_free (fullpath);
return (*assembly != NULL);
}
static MonoAssembly *
real_load (gchar **search_path, const gchar *culture, const gchar *name, gboolean refonly)
{
MonoAssembly *result = NULL;
gchar **path;
gchar *filename;
const gchar *local_culture;
gint len;
if (!culture || *culture == '\0') {
local_culture = "";
} else {
local_culture = culture;
}
filename = g_strconcat (name, ".dll", NULL);
len = strlen (filename);
for (path = search_path; *path; path++) {
if (**path == '\0')
continue; /* Ignore empty ApplicationBase */
/* See test cases in bug #58992 and bug #57710 */
/* 1st try: [culture]/[name].dll (culture may be empty) */
strcpy (filename + len - 4, ".dll");
if (try_load_from (&result, *path, local_culture, "", filename, refonly))
break;
/* 2nd try: [culture]/[name].exe (culture may be empty) */
strcpy (filename + len - 4, ".exe");
if (try_load_from (&result, *path, local_culture, "", filename, refonly))
break;
/* 3rd try: [culture]/[name]/[name].dll (culture may be empty) */
strcpy (filename + len - 4, ".dll");
if (try_load_from (&result, *path, local_culture, name, filename, refonly))
break;
/* 4th try: [culture]/[name]/[name].exe (culture may be empty) */
strcpy (filename + len - 4, ".exe");
if (try_load_from (&result, *path, local_culture, name, filename, refonly))
break;
}
g_free (filename);
return result;
}
/*
* Try to load referenced assemblies from assemblies_path.
*/
static MonoAssembly *
pedump_preload (MonoAssemblyName *aname,
gchar **assemblies_path,
gpointer user_data)
{
MonoAssembly *result = NULL;
gboolean refonly = GPOINTER_TO_UINT (user_data);
if (assemblies_path && assemblies_path [0] != NULL) {
result = real_load (assemblies_path, aname->culture, aname->name, refonly);
}
return result;
}
static GList *loaded_assemblies = NULL;
static void
pedump_assembly_load_hook (MonoAssembly *assembly, gpointer user_data)
{
loaded_assemblies = g_list_prepend (loaded_assemblies, assembly);
}
static MonoAssembly *
pedump_assembly_search_hook (MonoAssemblyName *aname, gpointer user_data)
{
GList *tmp;
for (tmp = loaded_assemblies; tmp; tmp = tmp->next) {
MonoAssembly *ass = tmp->data;
if (mono_assembly_names_equal (aname, &ass->aname))
return ass;
}
return NULL;
}
#define VALID_ONLY_FLAG 0x08000000
#define VERIFY_CODE_ONLY MONO_VERIFY_ALL + 1
#define VERIFY_METADATA_ONLY VERIFY_CODE_ONLY + 1
#define VERIFY_PARTIAL_METADATA VERIFY_CODE_ONLY + 2
int
main (int argc, char *argv [])
{
int image_result = 0;
MonoImage *image;
char *file = NULL;
char *flags = NULL;
MiniVerifierMode verifier_mode = MONO_VERIFIER_MODE_VERIFIABLE;
const char *flag_desc [] = {"error", "warn", "cls", "all", "code", "fail-on-verifiable", "non-strict", "valid-only", "metadata", "partial-md", NULL};
guint flag_vals [] = {MONO_VERIFY_ERROR, MONO_VERIFY_WARNING, MONO_VERIFY_CLS, MONO_VERIFY_ALL, VERIFY_CODE_ONLY, MONO_VERIFY_FAIL_FAST, MONO_VERIFY_NON_STRICT, VALID_ONLY_FLAG, VERIFY_METADATA_ONLY, VERIFY_PARTIAL_METADATA, 0};
int i, verify_flags = MONO_VERIFY_REPORT_ALL_ERRORS, run_new_metadata_verifier = 0;
for (i = 1; i < argc; i++){
if (argv [i][0] != '-'){
file = argv [i];
continue;
}
if (strcmp (argv [i], "--help") == 0)
usage ();
else if (strcmp (argv [i], "--verify") == 0) {
verify_pe = 1;
dump_data = 0;
++i;
flags = argv [i];
} else {
usage ();
}
}
if (!file)
usage ();
#ifndef DISABLE_PERFCOUNTERS
mono_perfcounters_init ();
#endif
mono_metadata_init ();
mono_images_init ();
mono_assemblies_init ();
mono_loader_init ();
if (verify_pe) {
char *tok = strtok (flags, ",");
verify_metadata = 1;
verify_code = 0;
while (tok) {
for (i = 0; flag_desc [i]; ++i) {
if (strcmp (tok, flag_desc [i]) == 0) {
if (flag_vals [i] == VERIFY_CODE_ONLY) {
verify_metadata = 0;
verify_code = 1;
} else if(flag_vals [i] == MONO_VERIFY_ALL) {
verify_code = 1;
} else if(flag_vals [i] == VERIFY_METADATA_ONLY) {
verify_metadata = 0;
run_new_metadata_verifier = 1;
} else if(flag_vals [i] == VERIFY_PARTIAL_METADATA) {
verify_partial_md = 1;
}
if (flag_vals [i] == VALID_ONLY_FLAG)
verifier_mode = MONO_VERIFIER_MODE_VALID;
else
verify_flags |= flag_vals [i];
break;
}
}
if (!flag_desc [i])
g_print ("Unknown verify flag %s\n", tok);
tok = strtok (NULL, ",");
}
mono_verifier_set_mode (verifier_mode);
/**/
}
if (verify_pe || run_new_metadata_verifier) {
run_new_metadata_verifier = 1;
}
if (run_new_metadata_verifier) {
mono_verifier_set_mode (verifier_mode);
image_result = verify_image_file (file);
if (image_result == 1 || !verify_code)
return image_result;
}
image = mono_image_open (file, NULL);
if (!image){
fprintf (stderr, "Cannot open image %s\n", file);
exit (1);
}
if (dump_data)
dump_dotnet_iinfo (image);
if (verify_pe) {
MonoAssembly *assembly;
MonoImage *image;
MonoImageOpenStatus status;
int code_result;
mono_verifier_set_mode (verifier_mode);
assembly = mono_assembly_open (file, NULL);
/*fake an assembly for netmodules so the verifier works*/
if (!assembly && (image = mono_image_open (file, &status)) && image->tables [MONO_TABLE_ASSEMBLY].rows == 0) {
assembly = g_new0 (MonoAssembly, 1);
assembly->in_gac = FALSE;
assembly->image = image;
image->assembly = assembly;
}
if (!assembly) {
g_print ("Could not open assembly %s\n", file);
return 4;
}
code_result = dump_verify_info (assembly->image, verify_flags);
return code_result ? code_result : image_result;
} else
mono_image_close (image);
return 0;
}