/* ldid - (Mach-O) Link-Loader Identity Editor
- * Copyright (C) 2007-2012 Jay Freeman (saurik)
+ * Copyright (C) 2007-2015 Jay Freeman (saurik)
*/
/* GNU Affero General Public License, Version 3 {{{ */
**/
/* }}} */
-#include "minimal/stdlib.h"
-#include "minimal/string.h"
-#include "minimal/mapping.h"
-
-extern "C" {
-#include "sha1.h"
-}
-
+#include <cstdio>
+#include <cstdlib>
#include <cstring>
+#include <fstream>
+#include <iostream>
+#include <memory>
+#include <set>
+#include <sstream>
#include <string>
#include <vector>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <regex.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#ifndef LDID_NOSMIME
+#include <openssl/opensslv.h>
+# if OPENSSL_VERSION_NUMBER >= 0x30000000
+# include <openssl/provider.h>
+# endif
+#include <openssl/err.h>
+#include <openssl/pem.h>
+#include <openssl/pkcs7.h>
+#include <openssl/pkcs12.h>
+#include <openssl/ui.h>
+#endif
+
+#ifdef __APPLE__
+#include <CommonCrypto/CommonDigest.h>
+
+#define LDID_SHA1_DIGEST_LENGTH CC_SHA1_DIGEST_LENGTH
+#define LDID_SHA1 CC_SHA1
+#define LDID_SHA1_CTX CC_SHA1_CTX
+#define LDID_SHA1_Init CC_SHA1_Init
+#define LDID_SHA1_Update CC_SHA1_Update
+#define LDID_SHA1_Final CC_SHA1_Final
+
+#define LDID_SHA256_DIGEST_LENGTH CC_SHA256_DIGEST_LENGTH
+#define LDID_SHA256 CC_SHA256
+#define LDID_SHA256_CTX CC_SHA256_CTX
+#define LDID_SHA256_Init CC_SHA256_Init
+#define LDID_SHA256_Update CC_SHA256_Update
+#define LDID_SHA256_Final CC_SHA256_Final
+#else
+#include <openssl/sha.h>
+
+#define LDID_SHA1_DIGEST_LENGTH SHA_DIGEST_LENGTH
+#define LDID_SHA1 SHA1
+#define LDID_SHA1_CTX SHA_CTX
+#define LDID_SHA1_Init SHA1_Init
+#define LDID_SHA1_Update SHA1_Update
+#define LDID_SHA1_Final SHA1_Final
+
+#define LDID_SHA256_DIGEST_LENGTH SHA256_DIGEST_LENGTH
+#define LDID_SHA256 SHA256
+#define LDID_SHA256_CTX SHA256_CTX
+#define LDID_SHA256_Init SHA256_Init
+#define LDID_SHA256_Update SHA256_Update
+#define LDID_SHA256_Final SHA256_Final
+#endif
+
+#ifndef LDID_NOPLIST
#include <plist/plist.h>
+#elif __APPLE__
+#include <CoreFoundation/CoreFoundation.h>
+#endif
+
+#include "ldid.hpp"
+
+#define _assert___(line) \
+ #line
+#define _assert__(line) \
+ _assert___(line)
+
+#ifndef $
+#define $(value) value
+#endif
+
+#ifdef __EXCEPTIONS
+#define _assert_(expr, format, ...) \
+ do if (!(expr)) { \
+ fprintf(stderr, $("%s(%u): _assert(): " format "\n"), __FILE__, __LINE__, ## __VA_ARGS__); \
+ throw $(__FILE__ "(" _assert__(__LINE__) "): _assert(" #expr ")"); \
+ } while (false)
+#else
+// XXX: this is not acceptable
+#define _assert_(expr, format, ...) \
+ do if (!(expr)) { \
+ fprintf(stderr, $("%s(%u): _assert(): " format "\n"), __FILE__, __LINE__, ## __VA_ARGS__); \
+ exit(-1); \
+ } while (false)
+#endif
+
+#define _assert(expr) \
+ _assert_(expr, "%s", $(#expr))
+
+#define _syscall(expr, ...) [&] { for (;;) { \
+ auto _value(expr); \
+ if ((long) _value != -1) \
+ return _value; \
+ int error(errno); \
+ if (error == EINTR) \
+ continue; \
+ /* XXX: EINTR is included in this list to fix g++ */ \
+ for (auto success : (long[]) {EINTR, __VA_ARGS__}) \
+ if (error == success) \
+ return (decltype(expr)) -success; \
+ _assert_(false, "errno=%u", error); \
+} }()
+
+#define _trace() \
+ fprintf(stderr, $("_trace(%s:%u): %s\n"), __FILE__, __LINE__, $(__FUNCTION__))
+
+#define _not(type) \
+ ((type) ~ (type) 0)
+
+#define _packed \
+ __attribute__((packed))
+
+#ifndef LDID_NOSMIME
+std::string password;
+#endif
+
+template <typename Type_>
+struct Iterator_ {
+ typedef typename Type_::const_iterator Result;
+};
+
+#define _foreach(item, list) \
+ for (bool _stop(true); _stop; ) \
+ for (const __typeof__(list) &_list = (list); _stop; _stop = false) \
+ for (Iterator_<__typeof__(list)>::Result _item = _list.begin(); _item != _list.end(); ++_item) \
+ for (bool _suck(true); _suck; _suck = false) \
+ for (const __typeof__(*_item) &item = *_item; _suck; _suck = false)
+
+class _Scope {
+};
+
+template <typename Function_>
+class Scope :
+ public _Scope
+{
+ private:
+ Function_ function_;
+
+ public:
+ Scope(const Function_ &function) :
+ function_(function)
+ {
+ }
+
+ ~Scope() {
+ function_();
+ }
+};
+
+template <typename Function_>
+Scope<Function_> _scope(const Function_ &function) {
+ return Scope<Function_>(function);
+}
+
+#define _scope__(counter, function) \
+ __attribute__((__unused__)) \
+ const _Scope &_scope ## counter(_scope([&]function))
+#define _scope_(counter, function) \
+ _scope__(counter, function)
+#define _scope(function) \
+ _scope_(__COUNTER__, function)
+
+#define CPU_ARCH_MASK uint32_t(0xff000000)
+#define CPU_ARCH_ABI64 uint32_t(0x01000000)
+
+#define CPU_TYPE_ANY uint32_t(-1)
+#define CPU_TYPE_VAX uint32_t( 1)
+#define CPU_TYPE_MC680x0 uint32_t( 6)
+#define CPU_TYPE_X86 uint32_t( 7)
+#define CPU_TYPE_MC98000 uint32_t(10)
+#define CPU_TYPE_HPPA uint32_t(11)
+#define CPU_TYPE_ARM uint32_t(12)
+#define CPU_TYPE_MC88000 uint32_t(13)
+#define CPU_TYPE_SPARC uint32_t(14)
+#define CPU_TYPE_I860 uint32_t(15)
+#define CPU_TYPE_POWERPC uint32_t(18)
+
+#define CPU_TYPE_I386 CPU_TYPE_X86
+
+#define CPU_TYPE_ARM64 (CPU_ARCH_ABI64 | CPU_TYPE_ARM)
+#define CPU_TYPE_POWERPC64 (CPU_ARCH_ABI64 | CPU_TYPE_POWERPC)
+#define CPU_TYPE_X86_64 (CPU_ARCH_ABI64 | CPU_TYPE_X86)
struct fat_header {
uint32_t magic;
#define MH_OBJECT 0x1
#define MH_EXECUTE 0x2
#define MH_DYLIB 0x6
+#define MH_DYLINKER 0x7
#define MH_BUNDLE 0x8
#define MH_DYLIB_STUB 0x9
#define LC_ENCRYPTION_INFO uint32_t(0x21)
#define LC_DYLD_INFO uint32_t(0x22)
#define LC_DYLD_INFO_ONLY uint32_t(0x22 | LC_REQ_DYLD)
+#define LC_ENCRYPTION_INFO_64 uint32_t(0x2c)
+
+union Version {
+ struct {
+ uint8_t patch;
+ uint8_t minor;
+ uint16_t major;
+ } _packed;
+
+ uint32_t value;
+};
struct dylib {
uint32_t name;
uint32_t flags;
uint32_t reserved1;
uint32_t reserved2;
+ uint32_t reserved3;
} _packed;
struct linkedit_data_command {
#define BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED 0xb0
#define BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB 0xc0
+struct : ldid::Progress {
+ virtual void operator()(const std::string &value) const {
+ }
+
+ virtual void operator()(double value) const {
+ }
+} dummy_;
+
+struct Progression : ldid::Progress {
+ const ldid::Progress &progress_;
+ std::string name_;
+
+ Progression(const ldid::Progress &progress, const std::string &name) :
+ progress_(progress),
+ name_(name)
+ {
+ }
+
+ virtual void operator()(const std::string &value) const {
+ return progress_(name_ + " (" + value + ")");
+ }
+
+ virtual void operator()(double value) const {
+ return progress_(value);
+ }
+};
+
+static std::streamsize read(std::streambuf &stream, void *data, size_t size) {
+ auto writ(stream.sgetn(static_cast<char *>(data), size));
+ _assert(writ >= 0);
+ return writ;
+}
+
+static inline void put(std::streambuf &stream, uint8_t value) {
+ _assert(stream.sputc(value) != EOF);
+}
+
+static inline void get(std::streambuf &stream, void *data, size_t size) {
+ _assert(read(stream, data, size) == size);
+}
+
+static inline void put(std::streambuf &stream, const void *data, size_t size) {
+ _assert(stream.sputn(static_cast<const char *>(data), size) == size);
+}
+
+static inline void put(std::streambuf &stream, const void *data, size_t size, const ldid::Progress &progress) {
+ progress(0);
+ for (size_t total(0); total != size;) {
+ auto writ(std::min(size - total, size_t(4096 * 4)));
+ _assert(stream.sputn(static_cast<const char *>(data) + total, writ) == writ);
+ total += writ;
+ progress(double(total) / size);
+ }
+}
+
+static inline void put(std::streambuf &stream, const std::string &data) {
+ return put(stream, data.data(), data.size());
+}
+
+static size_t most(std::streambuf &stream, void *data, size_t size) {
+ size_t total(size);
+ while (size > 0)
+ if (auto writ = read(stream, data, size))
+ size -= writ;
+ else break;
+ return total - size;
+}
+
+static inline void pad(std::streambuf &stream, size_t size) {
+ char padding[size];
+ memset(padding, 0, size);
+ put(stream, padding, size);
+}
+
template <typename Type_>
Type_ Align(Type_ value, size_t align) {
value += align - 1;
return value;
}
-uint16_t Swap_(uint16_t value) {
+static const uint8_t PageShift_(0x0c);
+static const uint32_t PageSize_(1 << PageShift_);
+
+static inline unsigned bytes(uint64_t value) {
+ return (64 - __builtin_clzll(value) + 7) / 8;
+}
+
+static void put(std::streambuf &stream, uint64_t value, size_t length) {
+ length *= 8;
+ do put(stream, uint8_t(value >> (length -= 8)));
+ while (length != 0);
+}
+
+static void der(std::streambuf &stream, uint64_t value) {
+ if (value < 128)
+ put(stream, value);
+ else {
+ unsigned length(bytes(value));
+ put(stream, 0x80 | length);
+ put(stream, value, length);
+ }
+}
+
+static std::string der(uint8_t tag, const char *value, size_t length) {
+ std::stringbuf data;
+ put(data, tag);
+ der(data, length);
+ put(data, value, length);
+ return data.str();
+}
+
+static std::string der(uint8_t tag, const char *value) {
+ return der(tag, value, strlen(value)); }
+static std::string der(uint8_t tag, const std::string &value) {
+ return der(tag, value.data(), value.size()); }
+
+template <typename Type_>
+static void der_(std::stringbuf &data, const Type_ &values) {
+ size_t size(0);
+ for (const auto &value : values)
+ size += value.size();
+ der(data, size);
+ for (const auto &value : values)
+ put(data, value);
+}
+
+static std::string der(const std::vector<std::string> &values) {
+ std::stringbuf data;
+ put(data, 0x30);
+ der_(data, values);
+ return data.str();
+}
+
+static std::string der(const std::multiset<std::string> &values) {
+ std::stringbuf data;
+ put(data, 0x31);
+ der_(data, values);
+ return data.str();
+}
+
+static std::string der(const std::pair<std::string, std::string> &value) {
+ const auto key(der(0x0c, value.first));
+ std::stringbuf data;
+ put(data, 0x30);
+ der(data, key.size() + value.second.size());
+ put(data, key);
+ put(data, value.second);
+ return data.str();
+}
+
+#ifndef LDID_NOPLIST
+static std::string der(plist_t data) {
+ switch (const auto type = plist_get_node_type(data)) {
+ case PLIST_BOOLEAN: {
+ uint8_t value(0);
+ plist_get_bool_val(data, &value);
+
+ std::stringbuf data;
+ put(data, 0x01);
+ der(data, 1);
+ put(data, value != 0 ? 1 : 0);
+ return data.str();
+ } break;
+
+ case PLIST_UINT: {
+ uint64_t value;
+ plist_get_uint_val(data, &value);
+ const auto length(bytes(value));
+
+ std::stringbuf data;
+ put(data, 0x02);
+ der(data, length);
+ put(data, value, length);
+ return data.str();
+ } break;
+
+ case PLIST_REAL: {
+ _assert(false);
+ } break;
+
+ case PLIST_DATE: {
+ _assert(false);
+ } break;
+
+ case PLIST_DATA: {
+ char *value;
+ uint64_t length;
+ plist_get_data_val(data, &value, &length);
+ _scope({ free(value); });
+ return der(0x04, value, length);
+ } break;
+
+ case PLIST_STRING: {
+ char *value;
+ plist_get_string_val(data, &value);
+ _scope({ free(value); });
+ return der(0x0c, value);
+ } break;
+
+ case PLIST_ARRAY: {
+ std::vector<std::string> values;
+ for (auto e(plist_array_get_size(data)), i(decltype(e)(0)); i != e; ++i)
+ values.push_back(der(plist_array_get_item(data, i)));
+ return der(values);
+ } break;
+
+ case PLIST_DICT: {
+ std::multiset<std::string> values;
+
+ plist_dict_iter iterator(NULL);
+ plist_dict_new_iter(data, &iterator);
+ _scope({ free(iterator); });
+
+ for (;;) {
+ char *key(NULL);
+ plist_t value(NULL);
+ plist_dict_next_item(data, iterator, &key, &value);
+ if (key == NULL)
+ break;
+ _scope({ free(key); });
+ values.insert(der(std::make_pair(key, der(value))));
+ }
+
+ return der(values);
+ } break;
+
+ default: {
+ _assert_(false, "unsupported plist type %d", type);
+ } break;
+ }
+}
+#endif
+
+static inline uint16_t Swap_(uint16_t value) {
return
((value >> 8) & 0x00ff) |
((value << 8) & 0xff00);
}
-uint32_t Swap_(uint32_t value) {
+static inline uint32_t Swap_(uint32_t value) {
value = ((value >> 8) & 0x00ff00ff) |
((value << 8) & 0xff00ff00);
value = ((value >> 16) & 0x0000ffff) |
return value;
}
-uint64_t Swap_(uint64_t value) {
+static inline uint64_t Swap_(uint64_t value) {
value = (value & 0x00000000ffffffff) << 32 | (value & 0xffffffff00000000) >> 32;
value = (value & 0x0000ffff0000ffff) << 16 | (value & 0xffff0000ffff0000) >> 16;
value = (value & 0x00ff00ff00ff00ff) << 8 | (value & 0xff00ff00ff00ff00) >> 8;
return value;
}
-int16_t Swap_(int16_t value) {
+static inline int16_t Swap_(int16_t value) {
return Swap_(static_cast<uint16_t>(value));
}
-int32_t Swap_(int32_t value) {
+static inline int32_t Swap_(int32_t value) {
return Swap_(static_cast<uint32_t>(value));
}
-int64_t Swap_(int64_t value) {
+static inline int64_t Swap_(int64_t value) {
return Swap_(static_cast<uint64_t>(value));
}
-bool little_(true);
+static bool little_(true);
-uint16_t Swap(uint16_t value) {
+static inline uint16_t Swap(uint16_t value) {
return little_ ? Swap_(value) : value;
}
-uint32_t Swap(uint32_t value) {
+static inline uint32_t Swap(uint32_t value) {
return little_ ? Swap_(value) : value;
}
-uint64_t Swap(uint64_t value) {
+static inline uint64_t Swap(uint64_t value) {
return little_ ? Swap_(value) : value;
}
-int16_t Swap(int16_t value) {
+static inline int16_t Swap(int16_t value) {
return Swap(static_cast<uint16_t>(value));
}
-int32_t Swap(int32_t value) {
+static inline int32_t Swap(int32_t value) {
return Swap(static_cast<uint32_t>(value));
}
-int64_t Swap(int64_t value) {
+static inline int64_t Swap(int64_t value) {
return Swap(static_cast<uint64_t>(value));
}
-template <typename Target_>
-class Pointer;
-
-class Data {
- private:
- void *base_;
- size_t size_;
-
+class Swapped {
protected:
bool swapped_;
- public:
- Data(void *base, size_t size) :
- base_(base),
- size_(size),
+ Swapped() :
swapped_(false)
{
}
- uint16_t Swap(uint16_t value) const {
- return swapped_ ? Swap_(value) : value;
- }
-
- uint32_t Swap(uint32_t value) const {
- return swapped_ ? Swap_(value) : value;
+ public:
+ Swapped(bool swapped) :
+ swapped_(swapped)
+ {
}
- uint64_t Swap(uint64_t value) const {
+ template <typename Type_>
+ Type_ Swap(Type_ value) const {
return swapped_ ? Swap_(value) : value;
}
+};
- int16_t Swap(int16_t value) const {
- return Swap(static_cast<uint16_t>(value));
- }
-
- int32_t Swap(int32_t value) const {
- return Swap(static_cast<uint32_t>(value));
- }
+class Data :
+ public Swapped
+{
+ private:
+ void *base_;
+ size_t size_;
- int64_t Swap(int64_t value) const {
- return Swap(static_cast<uint64_t>(value));
+ public:
+ Data(void *base, size_t size) :
+ base_(base),
+ size_(size)
+ {
}
void *GetBase() const {
_assert(
Swap(mach_header_->filetype) == MH_EXECUTE ||
Swap(mach_header_->filetype) == MH_DYLIB ||
+ Swap(mach_header_->filetype) == MH_DYLINKER ||
Swap(mach_header_->filetype) == MH_BUNDLE
);
}
+ bool Bits64() const {
+ return bits64_;
+ }
+
struct mach_header *operator ->() const {
return mach_header_;
}
return load_commands;
}
- std::vector<segment_command *> GetSegments(const char *segment_name) const {
- std::vector<struct segment_command *> segment_commands;
-
- _foreach (load_command, GetLoadCommands()) {
- if (Swap(load_command->cmd) == LC_SEGMENT) {
- segment_command *segment_command = reinterpret_cast<struct segment_command *>(load_command);
- if (strncmp(segment_command->segname, segment_name, 16) == 0)
- segment_commands.push_back(segment_command);
- }
- }
-
- return segment_commands;
- }
-
- std::vector<segment_command_64 *> GetSegments64(const char *segment_name) const {
- std::vector<struct segment_command_64 *> segment_commands;
-
- _foreach (load_command, GetLoadCommands()) {
- if (Swap(load_command->cmd) == LC_SEGMENT_64) {
- segment_command_64 *segment_command = reinterpret_cast<struct segment_command_64 *>(load_command);
- if (strncmp(segment_command->segname, segment_name, 16) == 0)
- segment_commands.push_back(segment_command);
- }
- }
-
- return segment_commands;
- }
-
- std::vector<section *> GetSections(const char *segment_name, const char *section_name) const {
- std::vector<section *> sections;
-
- _foreach (segment, GetSegments(segment_name)) {
- section *section = (struct section *) (segment + 1);
-
- uint32_t sect;
- for (sect = 0; sect != Swap(segment->nsects); ++sect) {
- if (strncmp(section->sectname, section_name, 16) == 0)
- sections.push_back(section);
- ++section;
- }
- }
-
- return sections;
- }
-
- template <typename Target_>
- Pointer<Target_> GetPointer(uint32_t address, const char *segment_name = NULL) const {
- load_command *load_command = (struct load_command *) (mach_header_ + 1);
- uint32_t cmd;
-
- for (cmd = 0; cmd != Swap(mach_header_->ncmds); ++cmd) {
- if (Swap(load_command->cmd) == LC_SEGMENT) {
- segment_command *segment_command = (struct segment_command *) load_command;
- if (segment_name != NULL && strncmp(segment_command->segname, segment_name, 16) != 0)
- goto next_command;
-
- section *sections = (struct section *) (segment_command + 1);
-
- uint32_t sect;
- for (sect = 0; sect != Swap(segment_command->nsects); ++sect) {
- section *section = §ions[sect];
- //printf("%s %u %p %p %u\n", segment_command->segname, sect, address, section->addr, section->size);
- if (address >= Swap(section->addr) && address < Swap(section->addr) + Swap(section->size)) {
- //printf("0x%.8x %s\n", address, segment_command->segname);
- return Pointer<Target_>(this, reinterpret_cast<Target_ *>(address - Swap(section->addr) + Swap(section->offset) + (char *) mach_header_));
- }
- }
+ void ForSection(const ldid::Functor<void (const char *, const char *, void *, size_t)> &code) const {
+ _foreach (load_command, GetLoadCommands())
+ switch (Swap(load_command->cmd)) {
+ case LC_SEGMENT: {
+ auto segment(reinterpret_cast<struct segment_command *>(load_command));
+ code(segment->segname, NULL, GetOffset<void>(segment->fileoff), segment->filesize);
+ auto section(reinterpret_cast<struct section *>(segment + 1));
+ for (uint32_t i(0), e(Swap(segment->nsects)); i != e; ++i, ++section)
+ code(segment->segname, section->sectname, GetOffset<void>(segment->fileoff + section->offset), section->size);
+ } break;
+
+ case LC_SEGMENT_64: {
+ auto segment(reinterpret_cast<struct segment_command_64 *>(load_command));
+ code(segment->segname, NULL, GetOffset<void>(segment->fileoff), segment->filesize);
+ auto section(reinterpret_cast<struct section_64 *>(segment + 1));
+ for (uint32_t i(0), e(Swap(segment->nsects)); i != e; ++i, ++section)
+ code(segment->segname, section->sectname, GetOffset<void>(segment->fileoff + section->offset), section->size);
+ } break;
}
-
- next_command:
- load_command = (struct load_command *) ((char *) load_command + Swap(load_command->cmdsize));
- }
-
- return Pointer<Target_>(this);
}
template <typename Target_>
- Pointer<Target_> GetOffset(uint32_t offset) {
- return Pointer<Target_>(this, reinterpret_cast<Target_ *>(offset + (uint8_t *) mach_header_));
+ Target_ *GetOffset(uint32_t offset) const {
+ return reinterpret_cast<Target_ *>(offset + (uint8_t *) mach_header_);
}
};
}
};
-FatHeader Map(const char *path, bool ro = false) {
- size_t size;
- void *base(map(path, 0, _not(size_t), &size, ro));
- return FatHeader(base, size);
-}
-
-template <typename Target_>
-class Pointer {
- private:
- const MachHeader *framework_;
- const Target_ *pointer_;
-
- public:
- Pointer(const MachHeader *framework = NULL, const Target_ *pointer = NULL) :
- framework_(framework),
- pointer_(pointer)
- {
- }
-
- operator const Target_ *() const {
- return pointer_;
- }
-
- const Target_ *operator ->() const {
- return pointer_;
- }
-
- Pointer<Target_> &operator ++() {
- ++pointer_;
- return *this;
- }
-
- template <typename Value_>
- Value_ Swap(Value_ value) {
- return framework_->Swap(value);
- }
+#define CSMAGIC_REQUIREMENT uint32_t(0xfade0c00)
+#define CSMAGIC_REQUIREMENTS uint32_t(0xfade0c01)
+#define CSMAGIC_CODEDIRECTORY uint32_t(0xfade0c02)
+#define CSMAGIC_EMBEDDED_SIGNATURE uint32_t(0xfade0cc0)
+#define CSMAGIC_EMBEDDED_SIGNATURE_OLD uint32_t(0xfade0b02)
+#define CSMAGIC_EMBEDDED_ENTITLEMENTS uint32_t(0xfade7171)
+#define CSMAGIC_EMBEDDED_DERFORMAT uint32_t(0xfade7172) // name?
+#define CSMAGIC_DETACHED_SIGNATURE uint32_t(0xfade0cc1)
+#define CSMAGIC_BLOBWRAPPER uint32_t(0xfade0b01)
+
+#define CSSLOT_CODEDIRECTORY uint32_t(0x00000)
+#define CSSLOT_INFOSLOT uint32_t(0x00001)
+#define CSSLOT_REQUIREMENTS uint32_t(0x00002)
+#define CSSLOT_RESOURCEDIR uint32_t(0x00003)
+#define CSSLOT_APPLICATION uint32_t(0x00004)
+#define CSSLOT_ENTITLEMENTS uint32_t(0x00005)
+#define CSSLOT_REPSPECIFIC uint32_t(0x00006) // name?
+#define CSSLOT_DERFORMAT uint32_t(0x00007) // name?
+#define CSSLOT_ALTERNATE uint32_t(0x01000)
+
+#define CSSLOT_SIGNATURESLOT uint32_t(0x10000)
+
+#define CS_HASHTYPE_SHA160_160 1
+#define CS_HASHTYPE_SHA256_256 2
+#define CS_HASHTYPE_SHA256_160 3
+#define CS_HASHTYPE_SHA386_386 4
+
+#if 0
+#define CS_EXECSEG_MAIN_BINARY 0x001 /* executable segment denotes main binary */
+#define CS_EXECSEG_ALLOW_UNSIGNED 0x010 /* allow unsigned pages (for debugging) */
+#define CS_EXECSEG_DEBUGGER 0x020 /* main binary is debugger */
+#define CS_EXECSEG_JIT 0x040 /* JIT enabled */
+#define CS_EXECSEG_SKIP_LV 0x080 /* skip library validation */
+#define CS_EXECSEG_CAN_LOAD_CDHASH 0x100 /* can bless cdhash for execution */
+#define CS_EXECSEG_CAN_EXEC_CDHASH 0x200 /* can execute blessed cdhash */
+#else
+enum SecCodeExecSegFlags {
+ kSecCodeExecSegMainBinary = 0x001,
+ kSecCodeExecSegAllowUnsigned = 0x010,
+ kSecCodeExecSegDebugger = 0x020,
+ kSecCodeExecSegJit = 0x040,
+ kSecCodeExecSegSkipLibraryVal = 0x080,
+ kSecCodeExecSegCanLoadCdHash = 0x100,
+ kSecCodeExecSegCanExecCdHash = 0x100,
};
-
-#define CSMAGIC_CODEDIRECTORY uint32_t(0xfade0c02)
-#define CSMAGIC_EMBEDDED_SIGNATURE uint32_t(0xfade0cc0)
-#define CSMAGIC_ENTITLEMENTS uint32_t(0xfade7171)
-
-#define CSSLOT_CODEDIRECTORY uint32_t(0)
-#define CSSLOT_REQUIREMENTS uint32_t(2)
-#define CSSLOT_ENTITLEMENTS uint32_t(5)
+#endif
struct BlobIndex {
uint32_t type;
} _packed;
struct CodeDirectory {
- struct Blob blob;
uint32_t version;
uint32_t flags;
uint32_t hashOffset;
uint32_t codeLimit;
uint8_t hashSize;
uint8_t hashType;
- uint8_t spare1;
+ uint8_t platform;
uint8_t pageSize;
uint32_t spare2;
+ uint32_t scatterOffset;
+ uint32_t teamIDOffset;
+ uint32_t spare3;
+ uint64_t codeLimit64;
+ uint64_t execSegBase;
+ uint64_t execSegLimit;
+ uint64_t execSegFlags;
+#if 0 // version = 0x20500
+ uint32_t runtime;
+ uint32_t preEncryptOffset;
+#endif
+#if 0 // version = 0x20600
+ uint8_t linkageHashType;
+ uint8_t linkageTruncated;
+ uint16_t spare4;
+ uint32_t linkageOffset;
+ uint32_t linkageSize;
+#endif
} _packed;
+enum CodeSignatureFlags {
+ kSecCodeSignatureHost = 0x0001,
+ kSecCodeSignatureAdhoc = 0x0002,
+ kSecCodeSignatureForceHard = 0x0100,
+ kSecCodeSignatureForceKill = 0x0200,
+ kSecCodeSignatureForceExpiration = 0x0400,
+ kSecCodeSignatureRestrict = 0x0800,
+ kSecCodeSignatureEnforcement = 0x1000,
+ kSecCodeSignatureLibraryValidation = 0x2000,
+ kSecCodeSignatureRuntime = 0x10000,
+};
+
+enum Kind : uint32_t {
+ exprForm = 1, // prefix expr form
+};
+
+enum ExprOp : uint32_t {
+ opFalse, // unconditionally false
+ opTrue, // unconditionally true
+ opIdent, // match canonical code [string]
+ opAppleAnchor, // signed by Apple as Apple's product
+ opAnchorHash, // match anchor [cert hash]
+ opInfoKeyValue, // *legacy* - use opInfoKeyField [key; value]
+ opAnd, // binary prefix expr AND expr [expr; expr]
+ opOr, // binary prefix expr OR expr [expr; expr]
+ opCDHash, // match hash of CodeDirectory directly [cd hash]
+ opNot, // logical inverse [expr]
+ opInfoKeyField, // Info.plist key field [string; match suffix]
+ opCertField, // Certificate field [cert index; field name; match suffix]
+ opTrustedCert, // require trust settings to approve one particular cert [cert index]
+ opTrustedCerts, // require trust settings to approve the cert chain
+ opCertGeneric, // Certificate component by OID [cert index; oid; match suffix]
+ opAppleGenericAnchor, // signed by Apple in any capacity
+ opEntitlementField, // entitlement dictionary field [string; match suffix]
+ opCertPolicy, // Certificate policy by OID [cert index; oid; match suffix]
+ opNamedAnchor, // named anchor type
+ opNamedCode, // named subroutine
+ opPlatform, // platform constraint [integer]
+ exprOpCount // (total opcode count in use)
+};
+
+enum MatchOperation {
+ matchExists, // anything but explicit "false" - no value stored
+ matchEqual, // equal (CFEqual)
+ matchContains, // partial match (substring)
+ matchBeginsWith, // partial match (initial substring)
+ matchEndsWith, // partial match (terminal substring)
+ matchLessThan, // less than (string with numeric comparison)
+ matchGreaterThan, // greater than (string with numeric comparison)
+ matchLessEqual, // less or equal (string with numeric comparison)
+ matchGreaterEqual, // greater or equal (string with numeric comparison)
+};
+
+#define OID_ISO_MEMBER 42
+#define OID_US OID_ISO_MEMBER, 134, 72
+#define APPLE_OID OID_US, 0x86, 0xf7, 0x63
+#define APPLE_ADS_OID APPLE_OID, 0x64
+#define APPLE_EXTENSION_OID APPLE_ADS_OID, 6
+
+#ifndef LDID_NOFLAGT
extern "C" uint32_t hash(uint8_t *k, uint32_t length, uint32_t initval);
+#endif
+
+struct Algorithm {
+ size_t size_;
+ uint8_t type_;
+
+ Algorithm(size_t size, uint8_t type) :
+ size_(size),
+ type_(type)
+ {
+ }
+
+ virtual const uint8_t *operator [](const ldid::Hash &hash) const = 0;
+
+ virtual void operator ()(uint8_t *hash, const void *data, size_t size) const = 0;
+ virtual void operator ()(ldid::Hash &hash, const void *data, size_t size) const = 0;
+ virtual void operator ()(std::vector<char> &hash, const void *data, size_t size) const = 0;
+
+ virtual const char *name() = 0;
+};
+
+struct AlgorithmSHA1 :
+ Algorithm
+{
+ AlgorithmSHA1() :
+ Algorithm(LDID_SHA1_DIGEST_LENGTH, CS_HASHTYPE_SHA160_160)
+ {
+ }
+
+ virtual const uint8_t *operator [](const ldid::Hash &hash) const {
+ return hash.sha1_;
+ }
+
+ void operator ()(uint8_t *hash, const void *data, size_t size) const {
+ LDID_SHA1(static_cast<const uint8_t *>(data), size, hash);
+ }
+
+ void operator ()(ldid::Hash &hash, const void *data, size_t size) const {
+ return operator()(hash.sha1_, data, size);
+ }
+
+ void operator ()(std::vector<char> &hash, const void *data, size_t size) const {
+ hash.resize(LDID_SHA1_DIGEST_LENGTH);
+ return operator ()(reinterpret_cast<uint8_t *>(hash.data()), data, size);
+ }
+
+ virtual const char *name() {
+ return "sha1";
+ }
+};
+
+struct AlgorithmSHA256 :
+ Algorithm
+{
+ AlgorithmSHA256() :
+ Algorithm(LDID_SHA256_DIGEST_LENGTH, CS_HASHTYPE_SHA256_256)
+ {
+ }
-void sha1(uint8_t *hash, uint8_t *data, size_t size) {
- SHA1Context context;
- SHA1Reset(&context);
- SHA1Input(&context, data, size);
- SHA1Result(&context, hash);
+ virtual const uint8_t *operator [](const ldid::Hash &hash) const {
+ return hash.sha256_;
+ }
+
+ void operator ()(uint8_t *hash, const void *data, size_t size) const {
+ LDID_SHA256(static_cast<const uint8_t *>(data), size, hash);
+ }
+
+ void operator ()(ldid::Hash &hash, const void *data, size_t size) const {
+ return operator()(hash.sha256_, data, size);
+ }
+
+ void operator ()(std::vector<char> &hash, const void *data, size_t size) const {
+ hash.resize(LDID_SHA256_DIGEST_LENGTH);
+ return operator ()(reinterpret_cast<uint8_t *>(hash.data()), data, size);
+ }
+
+ virtual const char *name() {
+ return "sha256";
+ }
+};
+
+static bool do_sha1(true);
+static bool do_sha256(true);
+
+static const std::vector<Algorithm *> &GetAlgorithms() {
+ static AlgorithmSHA1 sha1;
+ static AlgorithmSHA256 sha256;
+
+ static std::vector<Algorithm *> algorithms;
+ if (algorithms.empty()) {
+ if (do_sha256)
+ algorithms.push_back(&sha256);
+ if (do_sha1)
+ algorithms.push_back(&sha1);
+ }
+
+ return algorithms;
}
+struct Baton {
+ std::string entitlements_;
+ std::string derformat_;
+};
+
struct CodesignAllocation {
FatMachHeader mach_header_;
- uint32_t offset_;
+ uint64_t offset_;
uint32_t size_;
+ uint64_t limit_;
uint32_t alloc_;
uint32_t align_;
+ const char *arch_;
+ Baton baton_;
- CodesignAllocation(FatMachHeader mach_header, size_t offset, size_t size, size_t alloc, size_t align) :
+ CodesignAllocation(FatMachHeader mach_header, size_t offset, size_t size, size_t limit, size_t alloc, size_t align, const char *arch, const Baton &baton) :
mach_header_(mach_header),
offset_(offset),
size_(size),
+ limit_(limit),
alloc_(alloc),
- align_(align)
+ align_(align),
+ arch_(arch),
+ baton_(baton)
{
}
};
-int main(int argc, const char *argv[]) {
- union {
- uint16_t word;
- uint8_t byte[2];
- } endian = {1};
+#ifndef LDID_NOTOOLS
+class File {
+ private:
+ int file_;
- little_ = endian.byte[0];
+ public:
+ File() :
+ file_(-1)
+ {
+ }
- bool flag_R(false);
- bool flag_r(false);
+ ~File() {
+ if (file_ != -1)
+ _syscall(close(file_));
+ }
- bool flag_t(false);
- bool flag_p(false);
- bool flag_u(false);
- bool flag_e(false);
+ void open(const char *path, int flags) {
+ _assert(file_ == -1);
+ file_ = _syscall(::open(path, flags));
+ }
- bool flag_T(false);
+ int file() const {
+ return file_;
+ }
+};
- bool flag_S(false);
- bool flag_s(false);
+class Map {
+ private:
+ File file_;
+ void *data_;
+ size_t size_;
- bool flag_O(false);
+ void clear() {
+ if (data_ == NULL)
+ return;
+ _syscall(munmap(data_, size_));
+ data_ = NULL;
+ size_ = 0;
+ }
- bool flag_D(false);
- bool flag_d(false);
+ public:
+ Map() :
+ data_(NULL),
+ size_(0)
+ {
+ }
- bool flag_A(false);
- bool flag_a(false);
+ Map(const std::string &path, int oflag, int pflag, int mflag) :
+ Map()
+ {
+ open(path, oflag, pflag, mflag);
+ }
- uint32_t flag_CPUType(_not(uint32_t));
- uint32_t flag_CPUSubtype(_not(uint32_t));
+ Map(const std::string &path, bool edit) :
+ Map()
+ {
+ open(path, edit);
+ }
- const char *flag_I(NULL);
+ ~Map() {
+ clear();
+ }
- bool timeh(false);
- uint32_t timev(0);
+ bool empty() const {
+ return data_ == NULL;
+ }
- const void *xmld(NULL);
- size_t xmls(0);
+ void open(const std::string &path, int oflag, int pflag, int mflag) {
+ clear();
- uintptr_t noffset(_not(uintptr_t));
- uintptr_t woffset(_not(uintptr_t));
+ file_.open(path.c_str(), oflag);
+ int file(file_.file());
- std::vector<std::string> files;
+ struct stat stat;
+ _syscall(fstat(file, &stat));
+ size_ = stat.st_size;
- if (argc == 1) {
- fprintf(stderr, "usage: %s -S[entitlements.xml] <binary>\n", argv[0]);
- fprintf(stderr, " %s -e MobileSafari\n", argv[0]);
- fprintf(stderr, " %s -S cat\n", argv[0]);
- fprintf(stderr, " %s -Stfp.xml gdb\n", argv[0]);
- exit(0);
+ data_ = _syscall(mmap(NULL, size_, pflag, mflag, file, 0));
}
- for (int argi(1); argi != argc; ++argi)
- if (argv[argi][0] != '-')
- files.push_back(argv[argi]);
- else switch (argv[argi][1]) {
- case 'R': flag_R = true; break;
- case 'r': flag_r = true; break;
+ void open(const std::string &path, bool edit) {
+ if (edit)
+ open(path, O_RDWR, PROT_READ | PROT_WRITE, MAP_SHARED);
+ else
+ open(path, O_RDONLY, PROT_READ, MAP_PRIVATE);
+ }
+
+ void *data() const {
+ return data_;
+ }
+
+ size_t size() const {
+ return size_;
+ }
+
+ operator std::string() const {
+ return std::string(static_cast<char *>(data_), size_);
+ }
+};
+#endif
+
+namespace ldid {
+
+#ifndef LDID_NOPLIST
+static plist_t plist(const std::string &data);
+#endif
+
+void Analyze(const MachHeader &mach_header, const Functor<void (const char *data, size_t size)> &entitle) {
+ _foreach (load_command, mach_header.GetLoadCommands())
+ if (mach_header.Swap(load_command->cmd) == LC_CODE_SIGNATURE) {
+ auto signature(reinterpret_cast<struct linkedit_data_command *>(load_command));
+ auto offset(mach_header.Swap(signature->dataoff));
+ auto pointer(reinterpret_cast<uint8_t *>(mach_header.GetBase()) + offset);
+ auto super(reinterpret_cast<struct SuperBlob *>(pointer));
+
+ for (size_t index(0); index != Swap(super->count); ++index)
+ if (Swap(super->index[index].type) == CSSLOT_ENTITLEMENTS) {
+ auto begin(Swap(super->index[index].offset));
+ auto blob(reinterpret_cast<struct Blob *>(pointer + begin));
+ auto writ(Swap(blob->length) - sizeof(*blob));
+ entitle(reinterpret_cast<char *>(blob + 1), writ);
+ }
+ }
+}
+
+std::string Analyze(const void *data, size_t size) {
+ std::string entitlements;
+
+ FatHeader fat_header(const_cast<void *>(data), size);
+ _foreach (mach_header, fat_header.GetMachHeaders())
+ Analyze(mach_header, fun([&](const char *data, size_t size) {
+ if (entitlements.empty())
+ entitlements.assign(data, size);
+ else
+ _assert(entitlements.compare(0, entitlements.size(), data, size) == 0);
+ }));
+
+ return entitlements;
+}
+
+static void Allocate(const void *idata, size_t isize, std::streambuf &output, const Functor<size_t (const MachHeader &, Baton &, size_t)> &allocate, const Functor<size_t (const MachHeader &, const Baton &, std::streambuf &output, size_t, size_t, size_t, const std::string &, const char *, const Progress &)> &save, const Progress &progress) {
+ FatHeader source(const_cast<void *>(idata), isize);
+
+ size_t offset(0);
+ if (source.IsFat())
+ offset += sizeof(fat_header) + sizeof(fat_arch) * source.Swap(source->nfat_arch);
+
+ std::vector<CodesignAllocation> allocations;
+ _foreach (mach_header, source.GetMachHeaders()) {
+ struct linkedit_data_command *signature(NULL);
+ struct symtab_command *symtab(NULL);
+
+ _foreach (load_command, mach_header.GetLoadCommands()) {
+ uint32_t cmd(mach_header.Swap(load_command->cmd));
+ if (false);
+ else if (cmd == LC_CODE_SIGNATURE)
+ signature = reinterpret_cast<struct linkedit_data_command *>(load_command);
+ else if (cmd == LC_SYMTAB)
+ symtab = reinterpret_cast<struct symtab_command *>(load_command);
+ }
+
+ size_t size;
+ if (signature == NULL)
+ size = mach_header.GetSize();
+ else {
+ size = mach_header.Swap(signature->dataoff);
+ _assert(size <= mach_header.GetSize());
+ }
+
+ if (symtab != NULL) {
+ auto end(mach_header.Swap(symtab->stroff) + mach_header.Swap(symtab->strsize));
+ if (symtab->stroff != 0 || symtab->strsize != 0) {
+ _assert(end <= size);
+ _assert(end >= size - 0x10);
+ size = end;
+ }
+ }
+
+ Baton baton;
+ size_t alloc(allocate(mach_header, baton, size));
+
+ auto *fat_arch(mach_header.GetFatArch());
+ uint32_t align;
+
+ if (fat_arch != NULL)
+ align = source.Swap(fat_arch->align);
+ else switch (mach_header.GetCPUType()) {
+ case CPU_TYPE_POWERPC:
+ case CPU_TYPE_POWERPC64:
+ case CPU_TYPE_X86:
+ case CPU_TYPE_X86_64:
+ align = 0xc;
+ break;
+ case CPU_TYPE_ARM:
+ case CPU_TYPE_ARM64:
+ align = 0xe;
+ break;
+ default:
+ align = 0x0;
+ break;
+ }
+
+ const char *arch(NULL);
+ switch (mach_header.GetCPUType()) {
+ case CPU_TYPE_POWERPC:
+ arch = "ppc";
+ break;
+ case CPU_TYPE_POWERPC64:
+ arch = "ppc64";
+ break;
+ case CPU_TYPE_X86:
+ arch = "i386";
+ break;
+ case CPU_TYPE_X86_64:
+ arch = "x86_64";
+ break;
+ case CPU_TYPE_ARM:
+ arch = "arm";
+ break;
+ case CPU_TYPE_ARM64:
+ arch = "arm64";
+ break;
+ }
+
+ offset = Align(offset, 1 << align);
+
+ uint32_t limit(size);
+ if (alloc != 0)
+ limit = Align(limit, 0x10);
+
+ allocations.push_back(CodesignAllocation(mach_header, offset, size, limit, alloc, align, arch, baton));
+ offset += size + alloc;
+ offset = Align(offset, 0x10);
+ }
+
+ size_t position(0);
+
+ if (source.IsFat()) {
+ fat_header fat_header;
+ fat_header.magic = Swap(FAT_MAGIC);
+ fat_header.nfat_arch = Swap(uint32_t(allocations.size()));
+ put(output, &fat_header, sizeof(fat_header));
+ position += sizeof(fat_header);
+
+ // XXX: support fat_arch_64 (not in my toolchain)
+ // probably use C++14 generic lambda (not in my toolchain)
+
+ _assert_(![&]() {
+ _foreach (allocation, allocations) {
+ const auto offset(allocation.offset_);
+ const auto size(allocation.limit_ + allocation.alloc_);
+ if (uint32_t(offset) != offset || uint32_t(size) != size)
+ return true;
+ }
+ return false;
+ }(), "FAT slice >=4GiB not currently supported");
+
+ _foreach (allocation, allocations) {
+ auto &mach_header(allocation.mach_header_);
+
+ fat_arch fat_arch;
+ fat_arch.cputype = Swap(mach_header->cputype);
+ fat_arch.cpusubtype = Swap(mach_header->cpusubtype);
+ fat_arch.offset = Swap(uint32_t(allocation.offset_));
+ fat_arch.size = Swap(uint32_t(allocation.limit_ + allocation.alloc_));
+ fat_arch.align = Swap(allocation.align_);
+ put(output, &fat_arch, sizeof(fat_arch));
+ position += sizeof(fat_arch);
+ }
+ }
+
+ _foreach (allocation, allocations) {
+ progress(allocation.arch_);
+ auto &mach_header(allocation.mach_header_);
+
+ pad(output, allocation.offset_ - position);
+ position = allocation.offset_;
+
+ size_t left(-1);
+ size_t right(0);
+
+ std::vector<std::string> commands;
+
+ _foreach (load_command, mach_header.GetLoadCommands()) {
+ std::string copy(reinterpret_cast<const char *>(load_command), load_command->cmdsize);
+
+ switch (mach_header.Swap(load_command->cmd)) {
+ case LC_CODE_SIGNATURE:
+ continue;
+ break;
+
+ // XXX: this is getting ridiculous: provide a better abstraction
+
+ case LC_SEGMENT: {
+ auto segment_command(reinterpret_cast<struct segment_command *>(©[0]));
+
+ if ((segment_command->initprot & 04) != 0) {
+ auto begin(mach_header.Swap(segment_command->fileoff));
+ auto end(begin + mach_header.Swap(segment_command->filesize));
+ if (left > begin)
+ left = begin;
+ if (right < end)
+ right = end;
+ }
+
+ if (strncmp(segment_command->segname, "__LINKEDIT", 16) == 0) {
+ size_t size(mach_header.Swap(allocation.limit_ + allocation.alloc_ - mach_header.Swap(segment_command->fileoff)));
+ segment_command->filesize = size;
+ segment_command->vmsize = Align(size, 1 << allocation.align_);
+ }
+ } break;
+
+ case LC_SEGMENT_64: {
+ auto segment_command(reinterpret_cast<struct segment_command_64 *>(©[0]));
+
+ if ((segment_command->initprot & 04) != 0) {
+ auto begin(mach_header.Swap(segment_command->fileoff));
+ auto end(begin + mach_header.Swap(segment_command->filesize));
+ if (left > begin)
+ left = begin;
+ if (right < end)
+ right = end;
+ }
+
+ if (strncmp(segment_command->segname, "__LINKEDIT", 16) == 0) {
+ size_t size(mach_header.Swap(allocation.limit_ + allocation.alloc_ - mach_header.Swap(segment_command->fileoff)));
+ segment_command->filesize = size;
+ segment_command->vmsize = Align(size, 1 << allocation.align_);
+ }
+ } break;
+ }
+
+ commands.push_back(copy);
+ }
+
+ if (allocation.alloc_ != 0) {
+ linkedit_data_command signature;
+ signature.cmd = mach_header.Swap(LC_CODE_SIGNATURE);
+ signature.cmdsize = mach_header.Swap(uint32_t(sizeof(signature)));
+ signature.dataoff = mach_header.Swap(allocation.limit_);
+ signature.datasize = mach_header.Swap(allocation.alloc_);
+ commands.push_back(std::string(reinterpret_cast<const char *>(&signature), sizeof(signature)));
+ }
+
+ size_t begin(position);
+
+ uint32_t after(0);
+ _foreach(command, commands)
+ after += command.size();
+
+ std::stringbuf altern;
+
+ struct mach_header header(*mach_header);
+ header.ncmds = mach_header.Swap(uint32_t(commands.size()));
+ header.sizeofcmds = mach_header.Swap(after);
+ put(output, &header, sizeof(header));
+ put(altern, &header, sizeof(header));
+ position += sizeof(header);
+
+ if (mach_header.Bits64()) {
+ auto pad(mach_header.Swap(uint32_t(0)));
+ put(output, &pad, sizeof(pad));
+ put(altern, &pad, sizeof(pad));
+ position += sizeof(pad);
+ }
+
+ _foreach(command, commands) {
+ put(output, command.data(), command.size());
+ put(altern, command.data(), command.size());
+ position += command.size();
+ }
+
+ uint32_t before(mach_header.Swap(mach_header->sizeofcmds));
+ if (before > after) {
+ pad(output, before - after);
+ pad(altern, before - after);
+ position += before - after;
+ }
+
+ auto top(reinterpret_cast<char *>(mach_header.GetBase()));
+
+ std::string overlap(altern.str());
+ overlap.append(top + overlap.size(), Align(overlap.size(), 0x1000) - overlap.size());
+
+ put(output, top + (position - begin), allocation.size_ - (position - begin), progress);
+ position = begin + allocation.size_;
+
+ pad(output, allocation.limit_ - allocation.size_);
+ position += allocation.limit_ - allocation.size_;
+
+ size_t saved(save(mach_header, allocation.baton_, output, allocation.limit_, left, right, overlap, top, progress));
+ if (allocation.alloc_ > saved)
+ pad(output, allocation.alloc_ - saved);
+ else
+ _assert(allocation.alloc_ == saved);
+ position += allocation.alloc_;
+ }
+}
+
+}
+
+typedef std::map<uint32_t, std::string> Blobs;
+
+static void insert(Blobs &blobs, uint32_t slot, const std::stringbuf &buffer) {
+ auto value(buffer.str());
+ std::swap(blobs[slot], value);
+}
+
+static const std::string &insert(Blobs &blobs, uint32_t slot, uint32_t magic, const std::stringbuf &buffer) {
+ auto value(buffer.str());
+ Blob blob;
+ blob.magic = Swap(magic);
+ blob.length = Swap(uint32_t(sizeof(blob) + value.size()));
+ value.insert(0, reinterpret_cast<char *>(&blob), sizeof(blob));
+ auto &save(blobs[slot]);
+ std::swap(save, value);
+ return save;
+}
+
+static size_t put(std::streambuf &output, uint32_t magic, const Blobs &blobs) {
+ size_t total(0);
+ _foreach (blob, blobs)
+ total += blob.second.size();
+
+ struct SuperBlob super;
+ super.blob.magic = Swap(magic);
+ super.blob.length = Swap(uint32_t(sizeof(SuperBlob) + blobs.size() * sizeof(BlobIndex) + total));
+ super.count = Swap(uint32_t(blobs.size()));
+ put(output, &super, sizeof(super));
+
+ size_t offset(sizeof(SuperBlob) + sizeof(BlobIndex) * blobs.size());
+
+ _foreach (blob, blobs) {
+ BlobIndex index;
+ index.type = Swap(blob.first);
+ index.offset = Swap(uint32_t(offset));
+ put(output, &index, sizeof(index));
+ offset += blob.second.size();
+ }
+
+ _foreach (blob, blobs)
+ put(output, blob.second.data(), blob.second.size());
+
+ return offset;
+}
+
+#ifndef LDID_NOSMIME
+class Buffer {
+ private:
+ BIO *bio_;
+
+ public:
+ Buffer(BIO *bio) :
+ bio_(bio)
+ {
+ _assert(bio_ != NULL);
+ }
+
+ Buffer() :
+ bio_(BIO_new(BIO_s_mem()))
+ {
+ }
+
+ Buffer(const char *data, size_t size) :
+ Buffer(BIO_new_mem_buf(const_cast<char *>(data), size))
+ {
+ }
+
+ Buffer(const std::string &data) :
+ Buffer(data.data(), data.size())
+ {
+ }
+
+ Buffer(PKCS7 *pkcs) :
+ Buffer()
+ {
+ _assert(i2d_PKCS7_bio(bio_, pkcs) != 0);
+ }
+
+ ~Buffer() {
+ BIO_free_all(bio_);
+ }
+
+ operator BIO *() const {
+ return bio_;
+ }
+
+ explicit operator std::string() const {
+ char *data;
+ auto size(BIO_get_mem_data(bio_, &data));
+ return std::string(data, size);
+ }
+};
+
+class Stuff {
+ private:
+ PKCS12 *value_;
+ EVP_PKEY *key_;
+ X509 *cert_;
+ STACK_OF(X509) *ca_;
+
+ public:
+ Stuff(BIO *bio) :
+ value_(d2i_PKCS12_bio(bio, NULL)),
+ ca_(NULL)
+ {
+ _assert(value_ != NULL);
+
+ if (!PKCS12_verify_mac(value_, "", 0) && password.empty()) {
+ char passbuf[2048];
+ UI_UTIL_read_pw_string(passbuf, 2048, "Enter password: ", 0);
+ password = passbuf;
+ }
+
+ _assert(PKCS12_parse(value_, password.c_str(), &key_, &cert_, &ca_) != 0);
+ _assert(key_ != NULL);
+ _assert(cert_ != NULL);
+
+ if (ca_ == NULL)
+ ca_ = sk_X509_new_null();
+ _assert(ca_ != NULL);
+ }
+
+ Stuff(const std::string &data) :
+ Stuff(Buffer(data))
+ {
+ }
+
+ ~Stuff() {
+ sk_X509_pop_free(ca_, X509_free);
+ X509_free(cert_);
+ EVP_PKEY_free(key_);
+ PKCS12_free(value_);
+ }
+
+ operator PKCS12 *() const {
+ return value_;
+ }
+
+ operator EVP_PKEY *() const {
+ return key_;
+ }
+
+ operator X509 *() const {
+ return cert_;
+ }
+
+ operator STACK_OF(X509) *() const {
+ return ca_;
+ }
+};
+
+class Signature {
+ private:
+ PKCS7 *value_;
+
+ public:
+ Signature(const Stuff &stuff, const Buffer &data, const std::string &xml) {
+ value_ = PKCS7_new();
+ _assert(value_ != NULL);
+
+ _assert(PKCS7_set_type(value_, NID_pkcs7_signed));
+ _assert(PKCS7_content_new(value_, NID_pkcs7_data));
+
+ STACK_OF(X509) *certs(stuff);
+ for (unsigned i(0), e(sk_X509_num(certs)); i != e; i++)
+ _assert(PKCS7_add_certificate(value_, sk_X509_value(certs, e - i - 1)));
+
+ // XXX: this is the same as PKCS7_sign_add_signer(value_, stuff, stuff, NULL, PKCS7_NOSMIMECAP)
+ _assert(X509_check_private_key(stuff, stuff));
+ auto info(PKCS7_add_signature(value_, stuff, stuff, EVP_sha1()));
+ _assert(info != NULL);
+ _assert(PKCS7_add_certificate(value_, stuff));
+ _assert(PKCS7_add_signed_attribute(info, NID_pkcs9_contentType, V_ASN1_OBJECT, OBJ_nid2obj(NID_pkcs7_data)));
+
+ PKCS7_set_detached(value_, 1);
+
+ ASN1_OCTET_STRING *string(ASN1_OCTET_STRING_new());
+ _assert(string != NULL);
+ try {
+ _assert(ASN1_STRING_set(string, xml.data(), xml.size()));
+
+ static auto nid(OBJ_create("1.2.840.113635.100.9.1", "", ""));
+ _assert(PKCS7_add_signed_attribute(info, nid, V_ASN1_OCTET_STRING, string));
+ } catch (...) {
+ ASN1_OCTET_STRING_free(string);
+ throw;
+ }
+
+ // XXX: this is the same as PKCS7_final(value_, data, PKCS7_BINARY)
+ BIO *bio(PKCS7_dataInit(value_, NULL));
+ _assert(bio != NULL);
+ _scope({ BIO_free_all(bio); });
+ SMIME_crlf_copy(data, bio, PKCS7_BINARY);
+ BIO_flush(bio);
+ _assert(PKCS7_dataFinal(value_, bio));
+ }
+
+ ~Signature() {
+ PKCS7_free(value_);
+ }
+
+ operator PKCS7 *() const {
+ return value_;
+ }
+};
+#endif
+
+class NullBuffer :
+ public std::streambuf
+{
+ public:
+ virtual std::streamsize xsputn(const char_type *data, std::streamsize size) {
+ return size;
+ }
+
+ virtual int_type overflow(int_type next) {
+ return next;
+ }
+};
+
+class HashBuffer :
+ public std::streambuf
+{
+ private:
+ ldid::Hash &hash_;
+
+ LDID_SHA1_CTX sha1_;
+ LDID_SHA256_CTX sha256_;
+
+ public:
+ HashBuffer(ldid::Hash &hash) :
+ hash_(hash)
+ {
+ LDID_SHA1_Init(&sha1_);
+ LDID_SHA256_Init(&sha256_);
+ }
+
+ ~HashBuffer() {
+ LDID_SHA1_Final(reinterpret_cast<uint8_t *>(hash_.sha1_), &sha1_);
+ LDID_SHA256_Final(reinterpret_cast<uint8_t *>(hash_.sha256_), &sha256_);
+ }
+
+ virtual std::streamsize xsputn(const char_type *data, std::streamsize size) {
+ LDID_SHA1_Update(&sha1_, data, size);
+ LDID_SHA256_Update(&sha256_, data, size);
+ return size;
+ }
+
+ virtual int_type overflow(int_type next) {
+ if (next == traits_type::eof())
+ return sync();
+ char value(next);
+ xsputn(&value, 1);
+ return next;
+ }
+};
+
+class HashProxy :
+ public HashBuffer
+{
+ private:
+ std::streambuf &buffer_;
+
+ public:
+ HashProxy(ldid::Hash &hash, std::streambuf &buffer) :
+ HashBuffer(hash),
+ buffer_(buffer)
+ {
+ }
+
+ virtual std::streamsize xsputn(const char_type *data, std::streamsize size) {
+ _assert(HashBuffer::xsputn(data, size) == size);
+ return buffer_.sputn(data, size);
+ }
+};
+
+#ifndef LDID_NOTOOLS
+static bool Starts(const std::string &lhs, const std::string &rhs) {
+ return lhs.size() >= rhs.size() && lhs.compare(0, rhs.size(), rhs) == 0;
+}
+
+class Split {
+ public:
+ std::string dir;
+ std::string base;
+
+ Split(const std::string &path) {
+ size_t slash(path.rfind('/'));
+ if (slash == std::string::npos)
+ base = path;
+ else {
+ dir = path.substr(0, slash + 1);
+ base = path.substr(slash + 1);
+ }
+ }
+};
+
+static void mkdir_p(const std::string &path) {
+ if (path.empty())
+ return;
+#ifdef __WIN32__
+ if (_syscall(mkdir(path.c_str()), EEXIST) == -EEXIST)
+ return;
+#else
+ if (_syscall(mkdir(path.c_str(), 0755), EEXIST) == -EEXIST)
+ return;
+#endif
+ auto slash(path.rfind('/', path.size() - 1));
+ if (slash == std::string::npos)
+ return;
+ mkdir_p(path.substr(0, slash));
+}
+
+static std::string Temporary(std::filebuf &file, const Split &split) {
+ std::string temp(split.dir + ".ldid." + split.base);
+ mkdir_p(split.dir);
+ _assert_(file.open(temp.c_str(), std::ios::out | std::ios::trunc | std::ios::binary) == &file, "open(): %s", temp.c_str());
+ return temp;
+}
+
+static void Commit(const std::string &path, const std::string &temp) {
+ struct stat info;
+ if (_syscall(stat(path.c_str(), &info), ENOENT) == 0) {
+#ifndef __WIN32__
+ _syscall(chown(temp.c_str(), info.st_uid, info.st_gid));
+#endif
+ _syscall(chmod(temp.c_str(), info.st_mode));
+ }
+
+ _syscall(rename(temp.c_str(), path.c_str()));
+}
+#endif
+
+namespace ldid {
+
+#ifndef LDID_NOSMIME
+static void get(std::string &value, X509_NAME *name, int nid) {
+ auto index(X509_NAME_get_index_by_NID(name, nid, -1));
+ _assert(index >= 0);
+ auto next(X509_NAME_get_index_by_NID(name, nid, index));
+ _assert(next == -1);
+ auto entry(X509_NAME_get_entry(name, index));
+ _assert(entry != NULL);
+ auto asn(X509_NAME_ENTRY_get_data(entry));
+ _assert(asn != NULL);
+ value.assign(reinterpret_cast<const char *>(ASN1_STRING_get0_data(asn)), ASN1_STRING_length(asn));
+}
+#endif
+
+static void req(std::streambuf &buffer, uint32_t value) {
+ value = Swap(value);
+ put(buffer, &value, sizeof(value));
+}
+
+static void req(std::streambuf &buffer, const std::string &value) {
+ req(buffer, value.size());
+ put(buffer, value.data(), value.size());
+ static uint8_t zeros[] = {0,0,0,0};
+ put(buffer, zeros, 3 - (value.size() + 3) % 4);
+}
+
+template <size_t Size_>
+static void req(std::streambuf &buffer, uint8_t (&&data)[Size_]) {
+ req(buffer, Size_);
+ put(buffer, data, Size_);
+ static uint8_t zeros[] = {0,0,0,0};
+ put(buffer, zeros, 3 - (Size_ + 3) % 4);
+}
+
+Hash Sign(const void *idata, size_t isize, std::streambuf &output, const std::string &identifier, const std::string &entitlements, bool merge, const std::string &requirements, const std::string &key, const Slots &slots, uint32_t flags, bool platform, const Progress &progress) {
+ Hash hash;
+
+
+ std::string team;
+ std::string common;
+
+#ifndef LDID_NOSMIME
+ if (!key.empty()) {
+ Stuff stuff(key);
+ auto name(X509_get_subject_name(stuff));
+ _assert(name != NULL);
+ get(team, name, NID_organizationalUnitName);
+ get(common, name, NID_commonName);
+ }
+#endif
+
+
+ std::stringbuf backing;
+
+ if (!requirements.empty()) {
+ put(backing, requirements.data(), requirements.size());
+ } else {
+ Blobs blobs;
+
+ std::stringbuf requirement;
+ req(requirement, exprForm);
+ req(requirement, opAnd);
+ req(requirement, opIdent);
+ req(requirement, identifier);
+ req(requirement, opAnd);
+ req(requirement, opAppleGenericAnchor);
+ req(requirement, opAnd);
+ req(requirement, opCertField);
+ req(requirement, 0);
+ req(requirement, "subject.CN");
+ req(requirement, matchEqual);
+ req(requirement, common);
+ req(requirement, opCertGeneric);
+ req(requirement, 1);
+ req(requirement, (uint8_t []) {APPLE_EXTENSION_OID, 2, 1});
+ req(requirement, matchExists);
+ insert(blobs, 3, CSMAGIC_REQUIREMENT, requirement);
+
+ put(backing, CSMAGIC_REQUIREMENTS, blobs);
+ }
+
+
+ // XXX: this is just a "sufficiently large number"
+ size_t certificate(0x3000);
+
+ Allocate(idata, isize, output, fun([&](const MachHeader &mach_header, Baton &baton, size_t size) -> size_t {
+ size_t alloc(sizeof(struct SuperBlob));
+
+ uint32_t normal((size + PageSize_ - 1) / PageSize_);
+
+ uint32_t special(0);
+
+ _foreach (slot, slots)
+ special = std::max(special, slot.first);
+
+ mach_header.ForSection(fun([&](const char *segment, const char *section, void *data, size_t size) {
+ if (strcmp(segment, "__TEXT") == 0 && section != NULL && strcmp(section, "__info_plist") == 0)
+ special = std::max(special, CSSLOT_INFOSLOT);
+ }));
+
+ special = std::max(special, CSSLOT_REQUIREMENTS);
+ alloc += sizeof(struct BlobIndex);
+ alloc += backing.str().size();
+
+#ifdef LDID_NOPLIST
+ baton.entitlements_ = entitlements;
+#else
+ if (merge)
+ Analyze(mach_header, fun([&](const char *data, size_t size) {
+ baton.entitlements_.assign(data, size);
+ }));
+
+ if (!baton.entitlements_.empty() || !entitlements.empty()) {
+ auto combined(plist(baton.entitlements_));
+ _scope({ plist_free(combined); });
+ _assert(plist_get_node_type(combined) == PLIST_DICT);
+
+ auto merging(plist(entitlements));
+ _scope({ plist_free(merging); });
+ _assert(plist_get_node_type(merging) == PLIST_DICT);
+
+ plist_dict_iter iterator(NULL);
+ plist_dict_new_iter(merging, &iterator);
+ _scope({ free(iterator); });
+
+ for (;;) {
+ char *key(NULL);
+ plist_t value(NULL);
+ plist_dict_next_item(merging, iterator, &key, &value);
+ if (key == NULL)
+ break;
+ _scope({ free(key); });
+ plist_dict_set_item(combined, key, plist_copy(value));
+ }
+
+ baton.derformat_ = der(combined);
+
+ char *xml(NULL);
+ uint32_t size;
+ plist_to_xml(combined, &xml, &size);
+ _scope({ free(xml); });
+
+ baton.entitlements_.assign(xml, size);
+ }
+#endif
+
+ if (!baton.entitlements_.empty()) {
+ special = std::max(special, CSSLOT_ENTITLEMENTS);
+ alloc += sizeof(struct BlobIndex);
+ alloc += sizeof(struct Blob);
+ alloc += baton.entitlements_.size();
+ }
+
+ if (!baton.derformat_.empty()) {
+ special = std::max(special, CSSLOT_DERFORMAT);
+ alloc += sizeof(struct BlobIndex);
+ alloc += sizeof(struct Blob);
+ alloc += baton.derformat_.size();
+ }
+
+ size_t directory(0);
+
+ directory += sizeof(struct BlobIndex);
+ directory += sizeof(struct Blob);
+ directory += sizeof(struct CodeDirectory);
+ directory += identifier.size() + 1;
+
+ if (!team.empty())
+ directory += team.size() + 1;
+
+ for (Algorithm *algorithm : GetAlgorithms())
+ alloc = Align(alloc + directory + (special + normal) * algorithm->size_, 16);
+
+#ifndef LDID_NOSMIME
+ if (!key.empty()) {
+ alloc += sizeof(struct BlobIndex);
+ alloc += sizeof(struct Blob);
+ alloc += certificate;
+ }
+#endif
+
+ return alloc;
+ }), fun([&](const MachHeader &mach_header, const Baton &baton, std::streambuf &output, size_t limit, size_t left, size_t right, const std::string &overlap, const char *top, const Progress &progress) -> size_t {
+ Blobs blobs;
+
+ if (true) {
+ insert(blobs, CSSLOT_REQUIREMENTS, backing);
+ }
+
+ uint64_t execs(0);
+ if (mach_header.Swap(mach_header->filetype) == MH_EXECUTE)
+ execs |= kSecCodeExecSegMainBinary;
+
+ if (!baton.entitlements_.empty()) {
+ std::stringbuf data;
+ put(data, baton.entitlements_.data(), baton.entitlements_.size());
+ insert(blobs, CSSLOT_ENTITLEMENTS, CSMAGIC_EMBEDDED_ENTITLEMENTS, data);
+
+#ifndef LDID_NOPLIST
+ auto entitlements(plist(baton.entitlements_));
+ _scope({ plist_free(entitlements); });
+ _assert(plist_get_node_type(entitlements) == PLIST_DICT);
+
+ const auto entitled([&](const char *key) {
+ auto item(plist_dict_get_item(entitlements, key));
+ if (plist_get_node_type(item) != PLIST_BOOLEAN)
+ return false;
+ uint8_t value(0);
+ plist_get_bool_val(item, &value);
+ return value != 0;
+ });
+
+ if (entitled("get-task-allow"))
+ execs |= kSecCodeExecSegAllowUnsigned;
+ if (entitled("run-unsigned-code"))
+ execs |= kSecCodeExecSegAllowUnsigned;
+ if (entitled("com.apple.private.cs.debugger"))
+ execs |= kSecCodeExecSegDebugger;
+ if (entitled("dynamic-codesigning"))
+ execs |= kSecCodeExecSegJit;
+ if (entitled("com.apple.private.skip-library-validation"))
+ execs |= kSecCodeExecSegSkipLibraryVal;
+ if (entitled("com.apple.private.amfi.can-load-cdhash"))
+ execs |= kSecCodeExecSegCanLoadCdHash;
+ if (entitled("com.apple.private.amfi.can-execute-cdhash"))
+ execs |= kSecCodeExecSegCanExecCdHash;
+#endif
+ }
+
+ if (!baton.derformat_.empty()) {
+ std::stringbuf data;
+ put(data, baton.derformat_.data(), baton.derformat_.size());
+ insert(blobs, CSSLOT_DERFORMAT, CSMAGIC_EMBEDDED_DERFORMAT, data);
+ }
+
+ Slots posts(slots);
+
+ mach_header.ForSection(fun([&](const char *segment, const char *section, void *data, size_t size) {
+ if (strcmp(segment, "__TEXT") == 0 && section != NULL && strcmp(section, "__info_plist") == 0) {
+ auto &slot(posts[CSSLOT_INFOSLOT]);
+ for (Algorithm *algorithm : GetAlgorithms())
+ (*algorithm)(slot, data, size);
+ }
+ }));
+
+ unsigned total(0);
+ for (Algorithm *pointer : GetAlgorithms()) {
+ Algorithm &algorithm(*pointer);
+
+ std::stringbuf data;
+
+ uint32_t special(0);
+ _foreach (blob, blobs)
+ special = std::max(special, blob.first);
+ _foreach (slot, posts)
+ special = std::max(special, slot.first);
+ uint32_t normal((limit + PageSize_ - 1) / PageSize_);
+
+ CodeDirectory directory;
+ directory.version = Swap(uint32_t(0x00020400));
+ directory.flags = Swap(uint32_t(flags));
+ directory.nSpecialSlots = Swap(special);
+ directory.codeLimit = Swap(uint32_t(limit > UINT32_MAX ? UINT32_MAX : limit));
+ directory.nCodeSlots = Swap(normal);
+ directory.hashSize = algorithm.size_;
+ directory.hashType = algorithm.type_;
+ directory.platform = platform ? 0x01 : 0x00;
+ directory.pageSize = PageShift_;
+ directory.spare2 = Swap(uint32_t(0));
+ directory.scatterOffset = Swap(uint32_t(0));
+ directory.spare3 = Swap(uint32_t(0));
+ directory.codeLimit64 = Swap(uint64_t(limit > UINT32_MAX ? limit : 0));
+ directory.execSegBase = Swap(uint64_t(left));
+ directory.execSegLimit = Swap(uint64_t(right - left));
+ directory.execSegFlags = Swap(execs);
+
+ uint32_t offset(sizeof(Blob) + sizeof(CodeDirectory));
+
+ directory.identOffset = Swap(uint32_t(offset));
+ offset += identifier.size() + 1;
+
+ if (team.empty())
+ directory.teamIDOffset = Swap(uint32_t(0));
+ else {
+ directory.teamIDOffset = Swap(uint32_t(offset));
+ offset += team.size() + 1;
+ }
+
+ offset += special * algorithm.size_;
+ directory.hashOffset = Swap(uint32_t(offset));
+ offset += normal * algorithm.size_;
+
+ put(data, &directory, sizeof(directory));
+
+ put(data, identifier.c_str(), identifier.size() + 1);
+ if (!team.empty())
+ put(data, team.c_str(), team.size() + 1);
+
+ std::vector<uint8_t> storage((special + normal) * algorithm.size_);
+ auto *hashes(&storage[special * algorithm.size_]);
+
+ memset(storage.data(), 0, special * algorithm.size_);
+
+ _foreach (blob, blobs) {
+ auto local(reinterpret_cast<const Blob *>(&blob.second[0]));
+ algorithm(hashes - blob.first * algorithm.size_, local, Swap(local->length));
+ }
+
+ _foreach (slot, posts)
+ memcpy(hashes - slot.first * algorithm.size_, algorithm[slot.second], algorithm.size_);
+
+ progress(0);
+ if (normal != 1)
+ for (size_t i = 0; i != normal - 1; ++i) {
+ algorithm(hashes + i * algorithm.size_, (PageSize_ * i < overlap.size() ? overlap.data() : top) + PageSize_ * i, PageSize_);
+ progress(double(i) / normal);
+ }
+ if (normal != 0)
+ algorithm(hashes + (normal - 1) * algorithm.size_, top + PageSize_ * (normal - 1), ((limit - 1) % PageSize_) + 1);
+ progress(1);
+
+ put(data, storage.data(), storage.size());
+
+ const auto &save(insert(blobs, total == 0 ? CSSLOT_CODEDIRECTORY : CSSLOT_ALTERNATE + total - 1, CSMAGIC_CODEDIRECTORY, data));
+ algorithm(hash, save.data(), save.size());
+
+ ++total;
+ }
+
+#ifndef LDID_NOSMIME
+ if (!key.empty()) {
+#ifdef LDID_NOPLIST
+ auto plist(CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
+ _scope({ CFRelease(plist); });
+
+ auto cdhashes(CFArrayCreateMutable(kCFAllocatorDefault, 0, &kCFTypeArrayCallBacks));
+ _scope({ CFRelease(cdhashes); });
+
+ CFDictionarySetValue(plist, CFSTR("cdhashes"), cdhashes);
+#else
+ auto plist(plist_new_dict());
+ _scope({ plist_free(plist); });
+
+ auto cdhashes(plist_new_array());
+ plist_dict_set_item(plist, "cdhashes", cdhashes);
+#endif
+
+ unsigned total(0);
+ for (Algorithm *pointer : GetAlgorithms()) {
+ Algorithm &algorithm(*pointer);
+ (void) algorithm;
+
+ const auto &blob(blobs[total == 0 ? CSSLOT_CODEDIRECTORY : CSSLOT_ALTERNATE + total - 1]);
+ ++total;
+
+ std::vector<char> hash;
+ algorithm(hash, blob.data(), blob.size());
+ hash.resize(20);
+
+#ifdef LDID_NOPLIST
+ auto value(CFDataCreate(kCFAllocatorDefault, reinterpret_cast<const UInt8 *>(hash.data()), hash.size()));
+ _scope({ CFRelease(value); });
+ CFArrayAppendValue(cdhashes, value);
+#else
+ plist_array_append_item(cdhashes, plist_new_data(hash.data(), hash.size()));
+#endif
+ }
+
+#ifdef LDID_NOPLIST
+ auto created(CFPropertyListCreateXMLData(kCFAllocatorDefault, plist));
+ _scope({ CFRelease(created); });
+ auto xml(reinterpret_cast<const char *>(CFDataGetBytePtr(created)));
+ auto size(CFDataGetLength(created));
+#else
+ char *xml(NULL);
+ uint32_t size;
+ plist_to_xml(plist, &xml, &size);
+ _scope({ free(xml); });
+#endif
+
+ std::stringbuf data;
+ const std::string &sign(blobs[CSSLOT_CODEDIRECTORY]);
+
+ Stuff stuff(key);
+ Buffer bio(sign);
+
+ Signature signature(stuff, sign, std::string(xml, size));
+ Buffer result(signature);
+ std::string value(result);
+ put(data, value.data(), value.size());
+
+ const auto &save(insert(blobs, CSSLOT_SIGNATURESLOT, CSMAGIC_BLOBWRAPPER, data));
+ _assert(save.size() <= certificate);
+ }
+#endif
+
+ return put(output, CSMAGIC_EMBEDDED_SIGNATURE, blobs);
+ }), progress);
+
+ return hash;
+}
+
+#ifndef LDID_NOTOOLS
+static void Unsign(void *idata, size_t isize, std::streambuf &output, const Progress &progress) {
+ Allocate(idata, isize, output, fun([](const MachHeader &mach_header, Baton &baton, size_t size) -> size_t {
+ return 0;
+ }), fun([](const MachHeader &mach_header, const Baton &baton, std::streambuf &output, size_t limit, size_t left, size_t right, const std::string &overlap, const char *top, const Progress &progress) -> size_t {
+ return 0;
+ }), progress);
+}
+
+std::string DiskFolder::Path(const std::string &path) const {
+ return path_ + path;
+}
+
+DiskFolder::DiskFolder(const std::string &path) :
+ path_(path)
+{
+ _assert_(path_.size() != 0 && path_[path_.size() - 1] == '/', "missing / on %s", path_.c_str());
+}
+
+DiskFolder::~DiskFolder() {
+ if (!std::uncaught_exception())
+ for (const auto &commit : commit_)
+ Commit(commit.first, commit.second);
+}
+
+#ifndef __WIN32__
+std::string readlink(const std::string &path) {
+ for (size_t size(1024); ; size *= 2) {
+ std::string data;
+ data.resize(size);
+
+ int writ(_syscall(::readlink(path.c_str(), &data[0], data.size())));
+ if (size_t(writ) >= size)
+ continue;
+
+ data.resize(writ);
+ return data;
+ }
+}
+#endif
+
+void DiskFolder::Find(const std::string &root, const std::string &base, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const {
+ std::string path(Path(root) + base);
+
+ DIR *dir(opendir(path.c_str()));
+ _assert(dir != NULL);
+ _scope({ _syscall(closedir(dir)); });
+
+ while (auto child = readdir(dir)) {
+ std::string name(child->d_name);
+ if (name == "." || name == "..")
+ continue;
+ if (Starts(name, ".ldid."))
+ continue;
+
+ bool directory;
+
+#ifdef __WIN32__
+ struct stat info;
+ _syscall(stat((path + name).c_str(), &info));
+ if (false);
+ else if (S_ISDIR(info.st_mode))
+ directory = true;
+ else if (S_ISREG(info.st_mode))
+ directory = false;
+ else
+ _assert_(false, "st_mode=%x", info.st_mode);
+#else
+ switch (child->d_type) {
+ case DT_DIR:
+ directory = true;
+ break;
+ case DT_REG:
+ directory = false;
+ break;
+ case DT_LNK:
+ link(base + name, fun([&]() { return readlink(path + name); }));
+ continue;
+ default:
+ _assert_(false, "d_type=%u", child->d_type);
+ }
+#endif
+
+ if (directory)
+ Find(root, base + name + "/", code, link);
+ else
+ code(base + name);
+ }
+}
+
+void DiskFolder::Save(const std::string &path, bool edit, const void *flag, const Functor<void (std::streambuf &)> &code) {
+ if (!edit) {
+ NullBuffer save;
+ code(save);
+ } else {
+ std::filebuf save;
+ auto from(Path(path));
+ commit_[from] = Temporary(save, from);
+ code(save);
+ }
+}
+
+bool DiskFolder::Look(const std::string &path) const {
+ return _syscall(access(Path(path).c_str(), R_OK), ENOENT) == 0;
+}
+
+void DiskFolder::Open(const std::string &path, const Functor<void (std::streambuf &, size_t, const void *)> &code) const {
+ std::filebuf data;
+ auto result(data.open(Path(path).c_str(), std::ios::binary | std::ios::in));
+ _assert_(result == &data, "DiskFolder::Open(%s)", Path(path).c_str());
+
+ auto length(data.pubseekoff(0, std::ios::end, std::ios::in));
+ data.pubseekpos(0, std::ios::in);
+ code(data, length, NULL);
+}
+
+void DiskFolder::Find(const std::string &path, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const {
+ Find(path, "", code, link);
+}
+#endif
+
+SubFolder::SubFolder(Folder &parent, const std::string &path) :
+ parent_(parent),
+ path_(path)
+{
+ _assert_(path_.size() == 0 || path_[path_.size() - 1] == '/', "missing / on %s", path_.c_str());
+}
+
+std::string SubFolder::Path(const std::string &path) const {
+ return path_ + path;
+}
+
+void SubFolder::Save(const std::string &path, bool edit, const void *flag, const Functor<void (std::streambuf &)> &code) {
+ return parent_.Save(Path(path), edit, flag, code);
+}
+
+bool SubFolder::Look(const std::string &path) const {
+ return parent_.Look(Path(path));
+}
+
+void SubFolder::Open(const std::string &path, const Functor<void (std::streambuf &, size_t, const void *)> &code) const {
+ return parent_.Open(Path(path), code);
+}
+
+void SubFolder::Find(const std::string &path, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const {
+ return parent_.Find(Path(path), code, link);
+}
+
+std::string UnionFolder::Map(const std::string &path) const {
+ auto remap(remaps_.find(path));
+ if (remap == remaps_.end())
+ return path;
+ return remap->second;
+}
+
+void UnionFolder::Map(const std::string &path, const Functor<void (const std::string &)> &code, const std::string &file, const Functor<void (const Functor<void (std::streambuf &, size_t, const void *)> &)> &save) const {
+ if (file.size() >= path.size() && file.substr(0, path.size()) == path)
+ code(file.substr(path.size()));
+}
+
+UnionFolder::UnionFolder(Folder &parent) :
+ parent_(parent)
+{
+}
+
+void UnionFolder::Save(const std::string &path, bool edit, const void *flag, const Functor<void (std::streambuf &)> &code) {
+ return parent_.Save(Map(path), edit, flag, code);
+}
+
+bool UnionFolder::Look(const std::string &path) const {
+ auto file(resets_.find(path));
+ if (file != resets_.end())
+ return true;
+ return parent_.Look(Map(path));
+}
+
+void UnionFolder::Open(const std::string &path, const Functor<void (std::streambuf &, size_t, const void *)> &code) const {
+ auto file(resets_.find(path));
+ if (file == resets_.end())
+ return parent_.Open(Map(path), code);
+ auto &entry(file->second);
+
+ auto &data(*entry.data_);
+ auto length(data.pubseekoff(0, std::ios::end, std::ios::in));
+ data.pubseekpos(0, std::ios::in);
+ code(data, length, entry.flag_);
+}
+
+void UnionFolder::Find(const std::string &path, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const {
+ for (auto &reset : resets_)
+ Map(path, code, reset.first, fun([&](const Functor<void (std::streambuf &, size_t, const void *)> &code) {
+ auto &entry(reset.second);
+ auto &data(*entry.data_);
+ auto length(data.pubseekoff(0, std::ios::end, std::ios::in));
+ data.pubseekpos(0, std::ios::in);
+ code(data, length, entry.flag_);
+ }));
+
+ for (auto &remap : remaps_)
+ Map(path, code, remap.first, fun([&](const Functor<void (std::streambuf &, size_t, const void *)> &code) {
+ parent_.Open(remap.second, fun([&](std::streambuf &data, size_t length, const void *flag) {
+ code(data, length, flag);
+ }));
+ }));
+
+ parent_.Find(path, fun([&](const std::string &name) {
+ if (deletes_.find(path + name) == deletes_.end())
+ code(name);
+ }), fun([&](const std::string &name, const Functor<std::string ()> &read) {
+ if (deletes_.find(path + name) == deletes_.end())
+ link(name, read);
+ }));
+}
+
+#ifndef LDID_NOTOOLS
+static void copy(std::streambuf &source, std::streambuf &target, size_t length, const Progress &progress) {
+ progress(0);
+ size_t total(0);
+ for (;;) {
+ char data[4096 * 4];
+ size_t writ(source.sgetn(data, sizeof(data)));
+ if (writ == 0)
+ break;
+ _assert(target.sputn(data, writ) == writ);
+ total += writ;
+ progress(double(total) / length);
+ }
+}
+
+#ifndef LDID_NOPLIST
+static plist_t plist(const std::string &data) {
+ if (data.empty())
+ return plist_new_dict();
+ plist_t plist(NULL);
+ if (Starts(data, "bplist00"))
+ plist_from_bin(data.data(), data.size(), &plist);
+ else
+ plist_from_xml(data.data(), data.size(), &plist);
+ _assert(plist != NULL);
+ return plist;
+}
+
+static void plist_d(std::streambuf &buffer, size_t length, const Functor<void (plist_t)> &code) {
+ std::stringbuf data;
+ copy(buffer, data, length, dummy_);
+ auto node(plist(data.str()));
+ _scope({ plist_free(node); });
+ _assert(plist_get_node_type(node) == PLIST_DICT);
+ code(node);
+}
+
+static std::string plist_s(plist_t node) {
+ _assert(node != NULL);
+ _assert(plist_get_node_type(node) == PLIST_STRING);
+ char *data;
+ plist_get_string_val(node, &data);
+ _scope({ free(data); });
+ return data;
+}
+#endif
+
+enum Mode {
+ NoMode,
+ OptionalMode,
+ OmitMode,
+ NestedMode,
+ TopMode,
+};
+
+class Expression {
+ private:
+ regex_t regex_;
+ std::vector<std::string> matches_;
+
+ public:
+ Expression(const std::string &code) {
+ _assert_(regcomp(®ex_, code.c_str(), REG_EXTENDED) == 0, "regcomp()");
+ matches_.resize(regex_.re_nsub + 1);
+ }
+
+ ~Expression() {
+ regfree(®ex_);
+ }
+
+ bool operator ()(const std::string &data) {
+ regmatch_t matches[matches_.size()];
+ auto value(regexec(®ex_, data.c_str(), matches_.size(), matches, 0));
+ if (value == REG_NOMATCH)
+ return false;
+ _assert_(value == 0, "regexec()");
+ for (size_t i(0); i != matches_.size(); ++i)
+ matches_[i].assign(data.data() + matches[i].rm_so, matches[i].rm_eo - matches[i].rm_so);
+ return true;
+ }
+
+ const std::string &operator [](size_t index) const {
+ return matches_[index];
+ }
+};
+
+struct Rule {
+ unsigned weight_;
+ Mode mode_;
+ std::string code_;
+
+ mutable std::unique_ptr<Expression> regex_;
+
+ Rule(unsigned weight, Mode mode, const std::string &code) :
+ weight_(weight),
+ mode_(mode),
+ code_(code)
+ {
+ }
+
+ Rule(const Rule &rhs) :
+ weight_(rhs.weight_),
+ mode_(rhs.mode_),
+ code_(rhs.code_)
+ {
+ }
+
+ void Compile() const {
+ regex_.reset(new Expression(code_));
+ }
+
+ bool operator ()(const std::string &data) const {
+ _assert(regex_.get() != NULL);
+ return (*regex_)(data);
+ }
+
+ bool operator <(const Rule &rhs) const {
+ if (weight_ > rhs.weight_)
+ return true;
+ if (weight_ < rhs.weight_)
+ return false;
+ return mode_ > rhs.mode_;
+ }
+};
+
+struct RuleCode {
+ bool operator ()(const Rule *lhs, const Rule *rhs) const {
+ return lhs->code_ < rhs->code_;
+ }
+};
+
+#ifndef LDID_NOPLIST
+static Hash Sign(const uint8_t *prefix, size_t size, std::streambuf &buffer, Hash &hash, std::streambuf &save, const std::string &identifier, const std::string &entitlements, bool merge, const std::string &requirements, const std::string &key, const Slots &slots, size_t length, uint32_t flags, bool platform, const Progress &progress) {
+ // XXX: this is a miserable fail
+ std::stringbuf temp;
+ put(temp, prefix, size);
+ copy(buffer, temp, length - size, progress);
+ // XXX: this is a stupid hack
+ pad(temp, 0x10 - (length & 0xf));
+ auto data(temp.str());
+
+ HashProxy proxy(hash, save);
+ return Sign(data.data(), data.size(), proxy, identifier, entitlements, merge, requirements, key, slots, flags, platform, progress);
+}
+
+struct State {
+ std::map<std::string, Hash> files;
+ std::map<std::string, std::string> links;
+
+ void Merge(const std::string &root, const State &state) {
+ for (const auto &entry : state.files)
+ files[root + entry.first] = entry.second;
+ for (const auto &entry : state.links)
+ links[root + entry.first] = entry.second;
+ }
+};
+
+Bundle Sign(const std::string &root, Folder &parent, const std::string &key, State &remote, const std::string &requirements, const Functor<std::string (const std::string &, const std::string &)> &alter, const Progress &progress) {
+ std::string executable;
+ std::string identifier;
+
+ bool mac(false);
+
+ std::string info("Info.plist");
+
+ SubFolder folder(parent, [&]() {
+ if (parent.Look(info))
+ return "";
+ mac = true;
+ if (false);
+ else if (parent.Look("Contents/" + info))
+ return "Contents/";
+ else if (parent.Look("Resources/" + info)) {
+ info = "Resources/" + info;
+ return "";
+ } else _assert_(false, "cannot find Info.plist");
+ }());
+
+ folder.Open(info, fun([&](std::streambuf &buffer, size_t length, const void *flag) {
+ plist_d(buffer, length, fun([&](plist_t node) {
+ executable = plist_s(plist_dict_get_item(node, "CFBundleExecutable"));
+ identifier = plist_s(plist_dict_get_item(node, "CFBundleIdentifier"));
+ }));
+ }));
+
+ if (mac && info == "Info.plist")
+ executable = "MacOS/" + executable;
+
+ progress(root + "*");
+
+ std::string entitlements;
+ folder.Open(executable, fun([&](std::streambuf &buffer, size_t length, const void *flag) {
+ // XXX: this is a miserable fail
+ std::stringbuf temp;
+ copy(buffer, temp, length, progress);
+ // XXX: this is a stupid hack
+ pad(temp, 0x10 - (length & 0xf));
+ auto data(temp.str());
+ entitlements = alter(root, Analyze(data.data(), data.size()));
+ }));
+
+ static const std::string directory("_CodeSignature/");
+ static const std::string signature(directory + "CodeResources");
+
+ std::map<std::string, std::multiset<Rule>> versions;
+
+ auto &rules1(versions[""]);
+ auto &rules2(versions["2"]);
+
+ const std::string resources(mac ? "Resources/" : "");
+
+ if (true) {
+ rules1.insert(Rule{1, NoMode, "^" + (resources == "" ? ".*" : resources)});
+ rules1.insert(Rule{1000, OptionalMode, "^" + resources + ".*\\.lproj/"});
+ rules1.insert(Rule{1100, OmitMode, "^" + resources + ".*\\.lproj/locversion.plist$"});
+ rules1.insert(Rule{1010, NoMode, "^" + resources + "Base\\.lproj/"});
+ rules1.insert(Rule{1, NoMode, "^version.plist$"});
+ }
+
+ if (true) {
+ rules2.insert(Rule{11, NoMode, ".*\\.dSYM($|/)"});
+ if (mac) rules2.insert(Rule{20, NoMode, "^" + resources});
+ rules2.insert(Rule{2000, OmitMode, "^(.*/)?\\.DS_Store$"});
+ if (mac) rules2.insert(Rule{10, NestedMode, "^(Frameworks|SharedFrameworks|PlugIns|Plug-ins|XPCServices|Helpers|MacOS|Library/(Automator|Spotlight|LoginItems))/"});
+ rules2.insert(Rule{1, NoMode, "^.*"});
+ rules2.insert(Rule{1000, OptionalMode, "^" + resources + ".*\\.lproj/"});
+ rules2.insert(Rule{1100, OmitMode, "^" + resources + ".*\\.lproj/locversion.plist$"});
+ if (!mac) rules2.insert(Rule{1010, NoMode, "^Base\\.lproj/"});
+ rules2.insert(Rule{20, OmitMode, "^Info\\.plist$"});
+ rules2.insert(Rule{20, OmitMode, "^PkgInfo$"});
+ if (mac) rules2.insert(Rule{10, NestedMode, "^[^/]+$"});
+ rules2.insert(Rule{20, NoMode, "^embedded\\.provisionprofile$"});
+ if (mac) rules2.insert(Rule{1010, NoMode, "^" + resources + "Base\\.lproj/"});
+ rules2.insert(Rule{20, NoMode, "^version\\.plist$"});
+ }
+
+ State local;
+
+ std::string failure(mac ? "Contents/|Versions/[^/]*/Resources/" : "");
+ Expression nested("^(Frameworks/[^/]*\\.framework|PlugIns/[^/]*\\.appex(()|/[^/]*.app))/(" + failure + ")Info\\.plist$");
+ std::map<std::string, Bundle> bundles;
+
+ folder.Find("", fun([&](const std::string &name) {
+ if (!nested(name))
+ return;
+ auto bundle(root + Split(name).dir);
+ if (mac) {
+ _assert(!bundle.empty());
+ bundle = Split(bundle.substr(0, bundle.size() - 1)).dir;
+ }
+ SubFolder subfolder(folder, bundle);
+
+ bundles[nested[1]] = Sign(bundle, subfolder, key, local, "", Starts(name, "PlugIns/") ? alter :
+ static_cast<const Functor<std::string (const std::string &, const std::string &)> &>(fun([&](const std::string &, const std::string &) -> std::string { return entitlements; }))
+ , progress);
+ }), fun([&](const std::string &name, const Functor<std::string ()> &read) {
+ }));
+
+ std::set<std::string> excludes;
+
+ auto exclude([&](const std::string &name) {
+ // BundleDiskRep::adjustResources -> builder.addExclusion
+ if (name == executable || Starts(name, directory) || Starts(name, "_MASReceipt/") || name == "CodeResources")
+ return true;
+
+ for (const auto &bundle : bundles)
+ if (Starts(name, bundle.first + "/")) {
+ excludes.insert(name);
+ return true;
+ }
+
+ return false;
+ });
+
+ folder.Find("", fun([&](const std::string &name) {
+ if (exclude(name))
+ return;
+
+ if (local.files.find(name) != local.files.end())
+ return;
+ auto &hash(local.files[name]);
+
+ folder.Open(name, fun([&](std::streambuf &data, size_t length, const void *flag) {
+ progress(root + name);
+
+ union {
+ struct {
+ uint32_t magic;
+ uint32_t count;
+ };
+
+ uint8_t bytes[8];
+ } header;
+
+ auto size(most(data, &header.bytes, sizeof(header.bytes)));
+
+ if (name != "_WatchKitStub/WK" && size == sizeof(header.bytes))
+ switch (Swap(header.magic)) {
+ case FAT_MAGIC:
+ // Java class file format
+ if (Swap(header.count) >= 40)
+ break;
+ case FAT_CIGAM:
+ case MH_MAGIC: case MH_MAGIC_64:
+ case MH_CIGAM: case MH_CIGAM_64:
+ folder.Save(name, true, flag, fun([&](std::streambuf &save) {
+ Slots slots;
+ Sign(header.bytes, size, data, hash, save, identifier, "", false, "", key, slots, length, 0, false, Progression(progress, root + name));
+ }));
+ return;
+ }
+
+ folder.Save(name, false, flag, fun([&](std::streambuf &save) {
+ HashProxy proxy(hash, save);
+ put(proxy, header.bytes, size);
+ copy(data, proxy, length - size, progress);
+ }));
+ }));
+ }), fun([&](const std::string &name, const Functor<std::string ()> &read) {
+ if (exclude(name))
+ return;
+
+ local.links[name] = read();
+ }));
+
+ auto plist(plist_new_dict());
+ _scope({ plist_free(plist); });
+
+ for (const auto &version : versions) {
+ auto files(plist_new_dict());
+ plist_dict_set_item(plist, ("files" + version.first).c_str(), files);
+
+ for (const auto &rule : version.second)
+ rule.Compile();
+
+ bool old(&version.second == &rules1);
+
+ for (const auto &hash : local.files)
+ for (const auto &rule : version.second)
+ if (rule(hash.first)) {
+ if (!old && mac && excludes.find(hash.first) != excludes.end());
+ else if (old && rule.mode_ == NoMode)
+ plist_dict_set_item(files, hash.first.c_str(), plist_new_data(reinterpret_cast<const char *>(hash.second.sha1_), sizeof(hash.second.sha1_)));
+ else if (rule.mode_ != OmitMode) {
+ auto entry(plist_new_dict());
+ plist_dict_set_item(entry, "hash", plist_new_data(reinterpret_cast<const char *>(hash.second.sha1_), sizeof(hash.second.sha1_)));
+ if (!old)
+ plist_dict_set_item(entry, "hash2", plist_new_data(reinterpret_cast<const char *>(hash.second.sha256_), sizeof(hash.second.sha256_)));
+ if (rule.mode_ == OptionalMode)
+ plist_dict_set_item(entry, "optional", plist_new_bool(true));
+ plist_dict_set_item(files, hash.first.c_str(), entry);
+ }
+
+ break;
+ }
+
+ if (!old)
+ for (const auto &link : local.links)
+ for (const auto &rule : version.second)
+ if (rule(link.first)) {
+ if (rule.mode_ != OmitMode) {
+ auto entry(plist_new_dict());
+ plist_dict_set_item(entry, "symlink", plist_new_string(link.second.c_str()));
+ if (rule.mode_ == OptionalMode)
+ plist_dict_set_item(entry, "optional", plist_new_bool(true));
+ plist_dict_set_item(files, link.first.c_str(), entry);
+ }
+
+ break;
+ }
+
+ if (!old && mac)
+ for (const auto &bundle : bundles) {
+ auto entry(plist_new_dict());
+ plist_dict_set_item(entry, "cdhash", plist_new_data(reinterpret_cast<const char *>(bundle.second.hash.sha256_), sizeof(bundle.second.hash.sha256_)));
+ plist_dict_set_item(entry, "requirement", plist_new_string("anchor apple generic"));
+ plist_dict_set_item(files, bundle.first.c_str(), entry);
+ }
+ }
+
+ for (const auto &version : versions) {
+ auto rules(plist_new_dict());
+ plist_dict_set_item(plist, ("rules" + version.first).c_str(), rules);
+
+ std::multiset<const Rule *, RuleCode> ordered;
+ for (const auto &rule : version.second)
+ ordered.insert(&rule);
+
+ for (const auto &rule : ordered)
+ if (rule->weight_ == 1 && rule->mode_ == NoMode)
+ plist_dict_set_item(rules, rule->code_.c_str(), plist_new_bool(true));
+ else {
+ auto entry(plist_new_dict());
+ plist_dict_set_item(rules, rule->code_.c_str(), entry);
+
+ switch (rule->mode_) {
+ case NoMode:
+ break;
+ case OmitMode:
+ plist_dict_set_item(entry, "omit", plist_new_bool(true));
+ break;
+ case OptionalMode:
+ plist_dict_set_item(entry, "optional", plist_new_bool(true));
+ break;
+ case NestedMode:
+ plist_dict_set_item(entry, "nested", plist_new_bool(true));
+ break;
+ case TopMode:
+ plist_dict_set_item(entry, "top", plist_new_bool(true));
+ break;
+ }
+
+ if (rule->weight_ >= 10000)
+ plist_dict_set_item(entry, "weight", plist_new_uint(rule->weight_));
+ else if (rule->weight_ != 1)
+ plist_dict_set_item(entry, "weight", plist_new_real(rule->weight_));
+ }
+ }
+
+ folder.Save(signature, true, NULL, fun([&](std::streambuf &save) {
+ HashProxy proxy(local.files[signature], save);
+ char *xml(NULL);
+ uint32_t size;
+ plist_to_xml(plist, &xml, &size);
+ _scope({ free(xml); });
+ put(proxy, xml, size);
+ }));
+
+ Bundle bundle;
+ bundle.path = folder.Path(executable);
+
+ folder.Open(executable, fun([&](std::streambuf &buffer, size_t length, const void *flag) {
+ progress(root + executable);
+ folder.Save(executable, true, flag, fun([&](std::streambuf &save) {
+ Slots slots;
+ slots[1] = local.files.at(info);
+ slots[3] = local.files.at(signature);
+ bundle.hash = Sign(NULL, 0, buffer, local.files[executable], save, identifier, entitlements, false, requirements, key, slots, length, 0, false, Progression(progress, root + executable));
+ }));
+ }));
+
+ remote.Merge(root, local);
+ return bundle;
+}
+
+Bundle Sign(const std::string &root, Folder &folder, const std::string &key, const std::string &requirements, const Functor<std::string (const std::string &, const std::string &)> &alter, const Progress &progress) {
+ State local;
+ return Sign(root, folder, key, local, requirements, alter, progress);
+}
+#endif
+
+#endif
+}
+
+std::string Hex(const uint8_t *data, size_t size) {
+ std::string hex;
+ hex.reserve(size * 2);
+ for (size_t i(0); i != size; ++i) {
+ hex += "0123456789abcdef"[data[i] >> 4];
+ hex += "0123456789abcdef"[data[i] & 0xf];
+ }
+ return hex;
+}
+
+static void usage(const char *argv0) {
+ fprintf(stderr, "Link Identity Editor %s\n\n", LDID_VERSION);
+ fprintf(stderr, "usage: %s [-Acputype:subtype] [-a]\n", argv0);
+ fprintf(stderr, " [-C[adhoc | enforcement | expires | hard |\n");
+ fprintf(stderr, " host | kill | library-validation | restrict | runtime]] [-D] [-d]\n");
+ fprintf(stderr, " [-e] [-h] [-Kkey.p12 [-Upassword]] [-M] [-P] [-q] [-r | -Sfile | -s]\n");
+ fprintf(stderr, " [-Ttimestamp] [-u] file ...\n\n");
+ fprintf(stderr, "Options:\n");
+ fprintf(stderr, " -S[file.xml] Pseudo-sign using the entitlements in file.xml\n");
+ fprintf(stderr, " -Kkey.p12 Sign using private key in key.p12\n");
+ fprintf(stderr, " -Upassword Use password to unlock key.p12\n");
+ fprintf(stderr, " -M Merge entitlements with any existing\n");
+ fprintf(stderr, " -h Print CDHash of file\n\n");
+ fprintf(stderr, "More information: 'man ldid'\n");
+}
+
+#ifndef LDID_NOTOOLS
+int main(int argc, char *argv[]) {
+#ifndef LDID_NOSMIME
+ OpenSSL_add_all_algorithms();
+# if OPENSSL_VERSION_NUMBER >= 0x30000000
+ OSSL_PROVIDER *legacy = OSSL_PROVIDER_load(NULL, "legacy");
+ OSSL_PROVIDER *deflt = OSSL_PROVIDER_load(NULL, "default");
+# endif
+#endif
+
+ union {
+ uint16_t word;
+ uint8_t byte[2];
+ } endian = {1};
+
+ little_ = endian.byte[0];
+
+ bool flag_r(false);
+ bool flag_e(false);
+ bool flag_q(false);
+
+ bool flag_H(false);
+ bool flag_h(false);
+
+#ifndef LDID_NOFLAGT
+ bool flag_T(false);
+#endif
+
+ bool flag_S(false);
+ bool flag_s(false);
+
+ bool flag_D(false);
+ bool flag_d(false);
+
+ bool flag_A(false);
+ bool flag_a(false);
+
+ bool flag_u(false);
+
+ bool flag_M(false);
+
+ uint32_t flags(0);
+ bool platform(false);
+
+ uint32_t flag_CPUType(_not(uint32_t));
+ uint32_t flag_CPUSubtype(_not(uint32_t));
+
+ const char *flag_I(NULL);
+
+#ifndef LDID_NOFLAGT
+ bool timeh(false);
+ uint32_t timev(0);
+#endif
+
+ Map entitlements;
+ Map requirements;
+ Map key;
+ ldid::Slots slots;
+
+ std::vector<std::string> files;
+
+ if (argc == 1) {
+ usage(argv[0]);
+ return 0;
+ }
+
+ for (int argi(1); argi != argc; ++argi)
+ if (argv[argi][0] != '-')
+ files.push_back(argv[argi]);
+ else switch (argv[argi][1]) {
+ case 'r':
+ _assert(!flag_s);
+ _assert(!flag_S);
+ flag_r = true;
+ break;
- case 't': flag_t = true; break;
- case 'u': flag_u = true; break;
- case 'p': flag_p = true; break;
case 'e': flag_e = true; break;
- case 'O': flag_O = true; break;
+
+ case 'E': {
+ const char *string = argv[argi] + 2;
+ const char *colon = strchr(string, ':');
+ _assert(colon != NULL);
+ Map file(colon + 1, O_RDONLY, PROT_READ, MAP_PRIVATE);
+ char *arge;
+ unsigned number(strtoul(string, &arge, 0));
+ _assert(arge == colon);
+ auto &slot(slots[number]);
+ for (Algorithm *algorithm : GetAlgorithms())
+ (*algorithm)(slot, file.data(), file.size());
+ } break;
+
+ case 'q': flag_q = true; break;
+
+ case 'H': {
+ const char *hash = argv[argi] + 2;
+
+ if (!flag_H) {
+ flag_H = true;
+
+ do_sha1 = false;
+ do_sha256 = false;
+
+ fprintf(stderr, "WARNING: -H is only present for compatibility with a fork of ldid\n");
+ fprintf(stderr, " you should NOT be manually specifying the hash algorithm\n");
+ }
+
+ if (false);
+ else if (strcmp(hash, "sha1") == 0)
+ do_sha1 = true;
+ else if (strcmp(hash, "sha256") == 0)
+ do_sha256 = true;
+ else _assert(false);
+ } break;
+
+ case 'h': flag_h = true; break;
+
+ case 'Q': {
+ const char *xml = argv[argi] + 2;
+ requirements.open(xml, O_RDONLY, PROT_READ, MAP_PRIVATE);
+ } break;
case 'D': flag_D = true; break;
case 'd': flag_d = true; break;
case 'a': flag_a = true; break;
case 'A':
+ _assert(!flag_A);
flag_A = true;
if (argv[argi][2] != '\0') {
const char *cpu = argv[argi] + 2;
}
break;
+ case 'C': {
+ const char *name = argv[argi] + 2;
+ if (false);
+ else if (strcmp(name, "host") == 0)
+ flags |= kSecCodeSignatureHost;
+ else if (strcmp(name, "adhoc") == 0)
+ flags |= kSecCodeSignatureAdhoc;
+ else if (strcmp(name, "hard") == 0)
+ flags |= kSecCodeSignatureForceHard;
+ else if (strcmp(name, "kill") == 0)
+ flags |= kSecCodeSignatureForceKill;
+ else if (strcmp(name, "expires") == 0)
+ flags |= kSecCodeSignatureForceExpiration;
+ else if (strcmp(name, "restrict") == 0)
+ flags |= kSecCodeSignatureRestrict;
+ else if (strcmp(name, "enforcement") == 0)
+ flags |= kSecCodeSignatureEnforcement;
+ else if (strcmp(name, "library-validation") == 0)
+ flags |= kSecCodeSignatureLibraryValidation;
+ else if (strcmp(name, "runtime") == 0)
+ flags |= kSecCodeSignatureRuntime;
+ else _assert(false);
+ } break;
+
+ case 'P':
+ platform = true;
+ break;
+
case 's':
+ _assert(!flag_r);
_assert(!flag_S);
flag_s = true;
break;
case 'S':
+ _assert(!flag_r);
_assert(!flag_s);
flag_S = true;
if (argv[argi][2] != '\0') {
const char *xml = argv[argi] + 2;
- xmld = map(xml, 0, _not(size_t), &xmls, true);
+ entitlements.open(xml, O_RDONLY, PROT_READ, MAP_PRIVATE);
}
break;
+ case 'M':
+ flag_M = true;
+ break;
+
+ case 'U':
+ password = argv[argi] + 2;
+ break;
+
+ case 'K':
+ if (argv[argi][2] != '\0')
+ key.open(argv[argi] + 2, O_RDONLY, PROT_READ, MAP_PRIVATE);
+ break;
+
+#ifndef LDID_NOFLAGT
case 'T': {
flag_T = true;
if (argv[argi][2] == '-')
_assert(arge == argv[argi] + strlen(argv[argi]));
}
} break;
+#endif
- case 'I': {
- flag_I = argv[argi] + 2;
- } break;
-
- case 'n': {
- char *arge;
- noffset = strtoul(argv[argi] + 2, &arge, 0);
- _assert(arge == argv[argi] + strlen(argv[argi]));
+ case 'u': {
+ flag_u = true;
} break;
- case 'w': {
- char *arge;
- woffset = strtoul(argv[argi] + 2, &arge, 0);
- _assert(arge == argv[argi] + strlen(argv[argi]));
+ case 'I': {
+ flag_I = argv[argi] + 2;
} break;
default:
- goto usage;
+ usage(argv[0]);
+ return 1;
break;
}
- if (files.empty()) usage: {
- exit(0);
+ _assert(flag_S || key.empty());
+ _assert(flag_S || flag_I == NULL);
+
+ if (flag_d && !flag_h) {
+ flag_h = true;
+ fprintf(stderr, "WARNING: -d also (temporarily) does the behavior of -h for compatibility with a fork of ldid\n");
}
+ if (files.empty())
+ return 0;
+
size_t filei(0), filee(0);
_foreach (file, files) try {
- const char *path(file.c_str());
- const char *base = strrchr(path, '/');
- char *temp(NULL), *dir;
-
- if (base != NULL)
- dir = strndup_(path, base++ - path + 1);
- else {
- dir = strdup("");
- base = path;
- }
-
- const char *name(flag_I ?: base);
-
- if (flag_r) {
- uint32_t clip(0); {
- FatHeader fat_header(Map(path));
- _foreach (mach_header, fat_header.GetMachHeaders()) {
- if (flag_A) {
- if (mach_header.GetCPUType() != flag_CPUType)
- continue;
- if (mach_header.GetCPUSubtype() != flag_CPUSubtype)
- continue;
- }
-
- mach_header->flags = mach_header.Swap(mach_header.Swap(mach_header->flags) | MH_DYLDLINK);
-
- uint32_t size(_not(uint32_t)); {
- _foreach (load_command, mach_header.GetLoadCommands()) {
- switch (mach_header.Swap(load_command->cmd)) {
- case LC_CODE_SIGNATURE: {
- struct linkedit_data_command *signature = reinterpret_cast<struct linkedit_data_command *>(load_command);
- memset(reinterpret_cast<uint8_t *>(mach_header.GetBase()) + mach_header.Swap(signature->dataoff), 0, mach_header.Swap(signature->datasize));
- memset(signature, 0, sizeof(struct linkedit_data_command));
-
- mach_header->ncmds = mach_header.Swap(mach_header.Swap(mach_header->ncmds) - 1);
- mach_header->sizeofcmds = mach_header.Swap(uint32_t(mach_header.Swap(mach_header->sizeofcmds) - sizeof(struct linkedit_data_command)));
- } break;
-
- case LC_SYMTAB: {
- struct symtab_command *symtab = reinterpret_cast<struct symtab_command *>(load_command);
- size = mach_header.Swap(symtab->stroff) + mach_header.Swap(symtab->strsize);
- } break;
- }
- }
- }
-
- _assert(size != _not(uint32_t));
-
- _foreach (segment, mach_header.GetSegments("__LINKEDIT")) {
- segment->filesize -= mach_header.GetSize() - size;
-
- if (fat_arch *fat_arch = mach_header.GetFatArch()) {
- fat_arch->size = fat_header.Swap(size);
- clip = std::max(clip, fat_header.Swap(fat_arch->offset) + size);
- } else
- clip = std::max(clip, size);
- }
-
- _foreach (segment, mach_header.GetSegments64("__LINKEDIT")) {
- segment->filesize -= mach_header.GetSize() - size;
-
- if (fat_arch *fat_arch = mach_header.GetFatArch()) {
- fat_arch->size = fat_header.Swap(size);
- clip = std::max(clip, fat_header.Swap(fat_arch->offset) + size);
- } else
- clip = std::max(clip, size);
- }
- }
- }
-
- if (clip != 0)
- _syscall(truncate(path, clip));
- }
-
- if (flag_S) {
- FatHeader source(Map(path));
-
- size_t offset(0);
-
- if (source.IsFat())
- offset += sizeof(fat_header) + sizeof(fat_arch) * source.Swap(source->nfat_arch);
-
- std::vector<CodesignAllocation> allocations; {
- _foreach (mach_header, source.GetMachHeaders()) {
- if (flag_A) {
- if (mach_header.GetCPUType() != flag_CPUType)
- continue;
- if (mach_header.GetCPUSubtype() != flag_CPUSubtype)
- continue;
- }
-
- mach_header->flags = mach_header.Swap(mach_header.Swap(mach_header->flags) | MH_DYLDLINK);
-
- size_t size(_not(size_t)); {
- _foreach (load_command, mach_header.GetLoadCommands()) {
- uint32_t cmd(mach_header.Swap(load_command->cmd));
- if (cmd == LC_CODE_SIGNATURE) {
- struct linkedit_data_command *signature = reinterpret_cast<struct linkedit_data_command *>(load_command);
- size = mach_header.Swap(signature->dataoff);
- _assert(size < mach_header.GetSize());
- break;
- }
- }
-
- if (size == _not(size_t))
- size = mach_header.GetSize();
- }
-
- size_t alloc(0);
- alloc += sizeof(struct SuperBlob);
- uint32_t special(0);
-
- special = std::max(special, CSSLOT_CODEDIRECTORY);
- alloc += sizeof(struct BlobIndex);
- alloc += sizeof(struct CodeDirectory);
- alloc += strlen(name) + 1;
-
- special = std::max(special, CSSLOT_REQUIREMENTS);
- alloc += sizeof(struct BlobIndex);
- alloc += 0xc;
-
- if (xmld != NULL) {
- special = std::max(special, CSSLOT_ENTITLEMENTS);
- alloc += sizeof(struct BlobIndex);
- alloc += sizeof(struct Blob);
- alloc += xmls;
- }
-
- size_t normal((size + 0x1000 - 1) / 0x1000);
- alloc = Align(alloc + (special + normal) * 0x14, 16);
-
- auto *fat_arch(mach_header.GetFatArch());
- uint32_t align(fat_arch == NULL ? 0 : source.Swap(fat_arch->align));
- offset = Align(offset, 1 << align);
-
- allocations.push_back(CodesignAllocation(mach_header, offset, size, alloc, align));
- offset += size + alloc;
- offset = Align(offset, 16);
- }
- }
-
- asprintf(&temp, "%s.%s.cs", dir, base);
- fclose(fopen(temp, "w+"));
- _syscall(truncate(temp, offset));
-
- void *file(map(temp, 0, offset, NULL, false));
- memset(file, 0, offset);
-
- fat_arch *fat_arch;
- if (!source.IsFat())
- fat_arch = NULL;
+ std::string path(file);
+
+ struct stat info;
+ _syscall(stat(path.c_str(), &info));
+
+ if (S_ISDIR(info.st_mode)) {
+ _assert(flag_S);
+#ifndef LDID_NOPLIST
+ ldid::DiskFolder folder(path + "/");
+ path += "/" + Sign("", folder, key, requirements, ldid::fun([&](const std::string &, const std::string &) -> std::string { return entitlements; }), dummy_).path;
+#else
+ _assert(false);
+#endif
+ } else if (flag_S || flag_r) {
+ Map input(path, O_RDONLY, PROT_READ, MAP_PRIVATE);
+
+ std::filebuf output;
+ Split split(path);
+ auto temp(Temporary(output, split));
+
+ if (flag_r)
+ ldid::Unsign(input.data(), input.size(), output, dummy_);
else {
- auto *fat_header(reinterpret_cast<struct fat_header *>(file));
- fat_header->magic = Swap(FAT_MAGIC);
- fat_header->nfat_arch = Swap(source.Swap(source->nfat_arch));
- fat_arch = reinterpret_cast<struct fat_arch *>(fat_header + 1);
+ std::string identifier(flag_I ?: split.base.c_str());
+ ldid::Sign(input.data(), input.size(), output, identifier, entitlements, flag_M, requirements, key, slots, flags, platform, dummy_);
}
- _foreach (allocation, allocations) {
- auto &source(allocation.mach_header_);
-
- uint32_t align(allocation.size_);
- align = Align(align, 0x10);
-
- if (fat_arch != NULL) {
- fat_arch->cputype = Swap(source->cputype);
- fat_arch->cpusubtype = Swap(source->cpusubtype);
- fat_arch->offset = Swap(allocation.offset_);
- fat_arch->size = Swap(align + allocation.alloc_);
- fat_arch->align = Swap(allocation.align_);
- ++fat_arch;
- }
-
- void *target(reinterpret_cast<uint8_t *>(file) + allocation.offset_);
- memcpy(target, source, allocation.size_);
- MachHeader mach_header(target, align + allocation.alloc_);
-
- struct linkedit_data_command *signature(NULL);
- _foreach (load_command, mach_header.GetLoadCommands()) {
- uint32_t cmd(mach_header.Swap(load_command->cmd));
- if (cmd != LC_CODE_SIGNATURE)
- continue;
- signature = reinterpret_cast<struct linkedit_data_command *>(load_command);
- break;
- }
-
- if (signature == NULL) {
- mach_header->ncmds = mach_header.Swap(mach_header.Swap(mach_header->ncmds) + 1);
- signature = reinterpret_cast<struct linkedit_data_command *>(reinterpret_cast<uint8_t *>(mach_header.GetLoadCommand()) + mach_header.Swap(mach_header->sizeofcmds));
- mach_header->sizeofcmds = mach_header.Swap(mach_header.Swap(mach_header->sizeofcmds) + uint32_t(sizeof(*signature)));
- signature->cmd = mach_header.Swap(LC_CODE_SIGNATURE);
- signature->cmdsize = mach_header.Swap(uint32_t(sizeof(*signature)));
- }
-
- signature->dataoff = mach_header.Swap(align);
- signature->datasize = mach_header.Swap(allocation.alloc_);
-
- _foreach (segment, mach_header.GetSegments("__LINKEDIT")) {
- size_t size(mach_header.Swap(align + allocation.alloc_ - mach_header.Swap(segment->fileoff)));
- segment->filesize = size;
- segment->vmsize = Align(size, 0x1000);
- }
-
- _foreach (segment, mach_header.GetSegments64("__LINKEDIT")) {
- size_t size(mach_header.Swap(align + allocation.alloc_ - mach_header.Swap(segment->fileoff)));
- segment->filesize = size;
- segment->vmsize = Align(size, 0x1000);
- }
- }
+ Commit(path, temp);
}
- if (flag_p)
- printf("path%zu='%s'\n", filei, file.c_str());
+ bool modify(false);
+#ifndef LDID_NOFLAGT
+ if (flag_T)
+ modify = true;
+#endif
+ if (flag_s)
+ modify = true;
- FatHeader fat_header(Map(temp == NULL ? path : temp, !(flag_R || flag_T || flag_s || flag_S || flag_O || flag_D)));
+ Map mapping(path, modify);
+ FatHeader fat_header(mapping.data(), mapping.size());
_foreach (mach_header, fat_header.GetMachHeaders()) {
struct linkedit_data_command *signature(NULL);
if (flag_a)
printf("cpu=0x%x:0x%x\n", mach_header.GetCPUType(), mach_header.GetCPUSubtype());
- if (flag_d) {
- if (struct fat_arch *fat_arch = mach_header.GetFatArch())
- printf("offset=0x%x\n", Swap(fat_arch->offset));
- else
- printf("offset=0x0\n");
- }
-
- if (woffset != _not(uintptr_t)) {
- Pointer<uint32_t> wvalue(mach_header.GetPointer<uint32_t>(woffset));
- if (wvalue == NULL)
- printf("(null) %p\n", reinterpret_cast<void *>(woffset));
- else
- printf("0x%.08x\n", *wvalue);
- }
-
- if (noffset != _not(uintptr_t))
- printf("%s\n", &*mach_header.GetPointer<char>(noffset));
-
- if (flag_d)
- _foreach(segment, mach_header.GetSegments("__TEXT")) {
- printf("vmaddr=0x%x\n", mach_header.Swap(segment->vmaddr));
- printf("fileoff=0x%x\n", mach_header.Swap(segment->fileoff));
- }
-
- if (flag_O) {
- _foreach(section, mach_header.GetSections("__TEXT", "__text"))
- section->addr = mach_header.Swap(0);
- }
-
_foreach (load_command, mach_header.GetLoadCommands()) {
uint32_t cmd(mach_header.Swap(load_command->cmd));
- if (flag_R && cmd == LC_REEXPORT_DYLIB)
- load_command->cmd = mach_header.Swap(LC_LOAD_DYLIB);
+ if (false);
else if (cmd == LC_CODE_SIGNATURE)
signature = reinterpret_cast<struct linkedit_data_command *>(load_command);
- else if (cmd == LC_ENCRYPTION_INFO)
+ else if (cmd == LC_ENCRYPTION_INFO || cmd == LC_ENCRYPTION_INFO_64)
encryption = reinterpret_cast<struct encryption_info_command *>(load_command);
- else if (cmd == LC_UUID) {
- volatile struct uuid_command *uuid_command(reinterpret_cast<struct uuid_command *>(load_command));
-
- if (flag_u) {
- printf("uuid%zu=%.2x%.2x%.2x%.2x-%.2x%.2x-%.2x%.2x-%.2x%.2x-%.2x%.2x%.2x%.2x%.2x%.2x\n", filei,
- uuid_command->uuid[ 0], uuid_command->uuid[ 1], uuid_command->uuid[ 2], uuid_command->uuid[ 3],
- uuid_command->uuid[ 4], uuid_command->uuid[ 5], uuid_command->uuid[ 6], uuid_command->uuid[ 7],
- uuid_command->uuid[ 8], uuid_command->uuid[ 9], uuid_command->uuid[10], uuid_command->uuid[11],
- uuid_command->uuid[12], uuid_command->uuid[13], uuid_command->uuid[14], uuid_command->uuid[15]
- );
- }
- } else if (cmd == LC_ID_DYLIB) {
+ else if (cmd == LC_LOAD_DYLIB) {
volatile struct dylib_command *dylib_command(reinterpret_cast<struct dylib_command *>(load_command));
+ const char *name(reinterpret_cast<const char *>(load_command) + mach_header.Swap(dylib_command->dylib.name));
- if (flag_t)
- printf("time%zu=0x%.8x\n", filei, mach_header.Swap(dylib_command->dylib.timestamp));
+ if (strcmp(name, "/System/Library/Frameworks/UIKit.framework/UIKit") == 0) {
+ if (flag_u) {
+ Version version;
+ version.value = mach_header.Swap(dylib_command->dylib.current_version);
+ printf("uikit=%u.%u.%u\n", version.major, version.minor, version.patch);
+ }
+ }
+ }
+#ifndef LDID_NOFLAGT
+ else if (cmd == LC_ID_DYLIB) {
+ volatile struct dylib_command *dylib_command(reinterpret_cast<struct dylib_command *>(load_command));
if (flag_T) {
uint32_t timed;
dylib_command->dylib.timestamp = mach_header.Swap(timed);
}
}
+#endif
}
- if (flag_d) {
- _assert(encryption != NULL);
-
- printf("cryptoff=0x%x\n", mach_header.Swap(encryption->cryptoff));
- printf("cryptsize=0x%x\n", mach_header.Swap(encryption->cryptsize));
- printf("cryptid=0x%x\n", mach_header.Swap(encryption->cryptid));
+ if (flag_d && encryption != NULL) {
+ printf("cryptid=%d\n", mach_header.Swap(encryption->cryptid));
}
if (flag_D) {
if (Swap(super->index[index].type) == CSSLOT_ENTITLEMENTS) {
uint32_t begin = Swap(super->index[index].offset);
struct Blob *entitlements = reinterpret_cast<struct Blob *>(blob + begin);
- fwrite(entitlements + 1, 1, Swap(entitlements->length) - sizeof(struct Blob), stdout);
+ fwrite(entitlements + 1, 1, Swap(entitlements->length) - sizeof(*entitlements), stdout);
+ }
+ }
+
+ if (flag_q) {
+ _assert(signature != NULL);
+
+ uint32_t data = mach_header.Swap(signature->dataoff);
+
+ uint8_t *top = reinterpret_cast<uint8_t *>(mach_header.GetBase());
+ uint8_t *blob = top + data;
+ struct SuperBlob *super = reinterpret_cast<struct SuperBlob *>(blob);
+
+ for (size_t index(0); index != Swap(super->count); ++index)
+ if (Swap(super->index[index].type) == CSSLOT_REQUIREMENTS) {
+ uint32_t begin = Swap(super->index[index].offset);
+ struct Blob *requirement = reinterpret_cast<struct Blob *>(blob + begin);
+ fwrite(requirement, 1, Swap(requirement->length), stdout);
}
}
for (size_t index(0); index != Swap(super->count); ++index)
if (Swap(super->index[index].type) == CSSLOT_CODEDIRECTORY) {
uint32_t begin = Swap(super->index[index].offset);
- struct CodeDirectory *directory = reinterpret_cast<struct CodeDirectory *>(blob + begin);
+ struct CodeDirectory *directory = reinterpret_cast<struct CodeDirectory *>(blob + begin + sizeof(Blob));
- uint8_t (*hashes)[20] = reinterpret_cast<uint8_t (*)[20]>(blob + begin + Swap(directory->hashOffset));
+ uint8_t (*hashes)[LDID_SHA1_DIGEST_LENGTH] = reinterpret_cast<uint8_t (*)[LDID_SHA1_DIGEST_LENGTH]>(blob + begin + Swap(directory->hashOffset));
uint32_t pages = Swap(directory->nCodeSlots);
if (pages != 1)
for (size_t i = 0; i != pages - 1; ++i)
- sha1(hashes[i], top + 0x1000 * i, 0x1000);
+ LDID_SHA1(top + PageSize_ * i, PageSize_, hashes[i]);
if (pages != 0)
- sha1(hashes[pages - 1], top + 0x1000 * (pages - 1), ((data - 1) % 0x1000) + 1);
+ LDID_SHA1(top + PageSize_ * (pages - 1), ((data - 1) % PageSize_) + 1, hashes[pages - 1]);
}
}
- if (flag_S) {
+ if (flag_h) {
_assert(signature != NULL);
+ auto algorithms(GetAlgorithms());
+
uint32_t data = mach_header.Swap(signature->dataoff);
- uint32_t size = mach_header.Swap(signature->datasize);
uint8_t *top = reinterpret_cast<uint8_t *>(mach_header.GetBase());
uint8_t *blob = top + data;
struct SuperBlob *super = reinterpret_cast<struct SuperBlob *>(blob);
- super->blob.magic = Swap(CSMAGIC_EMBEDDED_SIGNATURE);
-
- uint32_t count = xmld == NULL ? 2 : 3;
- uint32_t offset = sizeof(struct SuperBlob) + count * sizeof(struct BlobIndex);
-
- super->index[0].type = Swap(CSSLOT_CODEDIRECTORY);
- super->index[0].offset = Swap(offset);
-
- uint32_t begin = offset;
- struct CodeDirectory *directory = reinterpret_cast<struct CodeDirectory *>(blob + begin);
- offset += sizeof(struct CodeDirectory);
-
- directory->blob.magic = Swap(CSMAGIC_CODEDIRECTORY);
- directory->version = Swap(uint32_t(0x00020001));
- directory->flags = Swap(uint32_t(0));
- directory->codeLimit = Swap(data);
- directory->hashSize = 0x14;
- directory->hashType = 0x01;
- directory->spare1 = 0x00;
- directory->pageSize = 0x0c;
- directory->spare2 = Swap(uint32_t(0));
-
- directory->identOffset = Swap(offset - begin);
- strcpy(reinterpret_cast<char *>(blob + offset), name);
- offset += strlen(name) + 1;
-
- uint32_t special = xmld == NULL ? CSSLOT_REQUIREMENTS : CSSLOT_ENTITLEMENTS;
- directory->nSpecialSlots = Swap(special);
-
- uint8_t (*hashes)[20] = reinterpret_cast<uint8_t (*)[20]>(blob + offset);
- memset(hashes, 0, sizeof(*hashes) * special);
-
- offset += sizeof(*hashes) * special;
- hashes += special;
-
- uint32_t pages = (data + 0x1000 - 1) / 0x1000;
- directory->nCodeSlots = Swap(pages);
-
- if (pages != 1)
- for (size_t i = 0; i != pages - 1; ++i)
- sha1(hashes[i], top + 0x1000 * i, 0x1000);
- if (pages != 0)
- sha1(hashes[pages - 1], top + 0x1000 * (pages - 1), ((data - 1) % 0x1000) + 1);
- directory->hashOffset = Swap(offset - begin);
- offset += sizeof(*hashes) * pages;
- directory->blob.length = Swap(offset - begin);
+ struct Candidate {
+ CodeDirectory *directory_;
+ size_t size_;
+ Algorithm &algorithm_;
+ std::string hash_;
+ };
- super->index[1].type = Swap(CSSLOT_REQUIREMENTS);
- super->index[1].offset = Swap(offset);
+ std::map<uint8_t, Candidate> candidates;
- memcpy(blob + offset, "\xfa\xde\x0c\x01\x00\x00\x00\x0c\x00\x00\x00\x00", 0xc);
- offset += 0xc;
-
- if (xmld != NULL) {
- super->index[2].type = Swap(CSSLOT_ENTITLEMENTS);
- super->index[2].offset = Swap(offset);
-
- uint32_t begin = offset;
- struct Blob *entitlements = reinterpret_cast<struct Blob *>(blob + begin);
- offset += sizeof(struct Blob);
-
- memcpy(blob + offset, xmld, xmls);
- offset += xmls;
-
- entitlements->magic = Swap(CSMAGIC_ENTITLEMENTS);
- entitlements->length = Swap(offset - begin);
- }
-
- for (size_t index(0); index != count; ++index) {
- uint32_t type = Swap(super->index[index].type);
- if (type != 0 && type <= special) {
- uint32_t offset = Swap(super->index[index].offset);
- struct Blob *local = (struct Blob *) (blob + offset);
- sha1((uint8_t *) (hashes - type), (uint8_t *) local, Swap(local->length));
+ for (size_t index(0); index != Swap(super->count); ++index) {
+ auto type(Swap(super->index[index].type));
+ if ((type == CSSLOT_CODEDIRECTORY || type >= CSSLOT_ALTERNATE) && type != CSSLOT_SIGNATURESLOT) {
+ uint32_t begin = Swap(super->index[index].offset);
+ uint32_t end = index + 1 == Swap(super->count) ? Swap(super->blob.length) : Swap(super->index[index + 1].offset);
+ struct CodeDirectory *directory = reinterpret_cast<struct CodeDirectory *>(blob + begin + sizeof(Blob));
+ auto type(directory->hashType);
+ _assert(type > 0 && type <= algorithms.size());
+ auto &algorithm(*algorithms[type - 1]);
+ uint8_t hash[algorithm.size_];
+ algorithm(hash, blob + begin, end - begin);
+ candidates.insert({type, {directory, end - begin, algorithm, Hex(hash, 20)}});
}
}
- super->count = Swap(count);
- super->blob.length = Swap(offset);
-
- if (offset > size) {
- fprintf(stderr, "offset (%u) > size (%u)\n", offset, size);
- _assert(false);
- } //else fprintf(stderr, "offset (%zu) <= size (%zu)\n", offset, size);
+ _assert(!candidates.empty());
+ auto best(candidates.end());
+ --best;
+
+ const auto directory(best->second.directory_);
+ const auto flags(Swap(directory->flags));
+
+ std::string names;
+ if (flags & kSecCodeSignatureHost)
+ names += ",host";
+ if (flags & kSecCodeSignatureAdhoc)
+ names += ",adhoc";
+ if (flags & kSecCodeSignatureForceHard)
+ names += ",hard";
+ if (flags & kSecCodeSignatureForceKill)
+ names += ",kill";
+ if (flags & kSecCodeSignatureForceExpiration)
+ names += ",expires";
+ if (flags & kSecCodeSignatureRestrict)
+ names += ",restrict";
+ if (flags & kSecCodeSignatureEnforcement)
+ names += ",enforcement";
+ if (flags & kSecCodeSignatureLibraryValidation)
+ names += ",library-validation";
+ if (flags & kSecCodeSignatureRuntime)
+ names += ",runtime";
+
+ printf("CodeDirectory v=%x size=%zd flags=0x%x(%s) hashes=%d+%d location=embedded\n",
+ Swap(directory->version), best->second.size_, flags, names.empty() ? "none" : names.c_str() + 1, Swap(directory->nCodeSlots), Swap(directory->nSpecialSlots));
+ printf("Hash type=%s size=%d\n", best->second.algorithm_.name(), directory->hashSize);
+
+ std::string choices;
+ for (const auto &candidate : candidates) {
+ auto choice(candidate.second.algorithm_.name());
+ choices += ',';
+ choices += choice;
+ printf("CandidateCDHash %s=%s\n", choice, candidate.second.hash_.c_str());
+ }
+ printf("Hash choices=%s\n", choices.c_str() + 1);
- memset(blob + offset, 0, size - offset);
+ printf("CDHash=%s\n", best->second.hash_.c_str());
}
}
- if (flag_S) {
- uint8_t *top = reinterpret_cast<uint8_t *>(fat_header.GetBase());
- size_t size = fat_header.GetSize();
-
- char *copy;
- asprintf(©, "%s.%s.cp", dir, base);
- FILE *file = fopen(copy, "w+");
- size_t writ = fwrite(top, 1, size, file);
- _assert(writ == size);
- fclose(file);
-
- _syscall(unlink(temp));
- free(temp);
- temp = copy;
- }
-
- if (temp != NULL) {
- struct stat info;
- _syscall(stat(path, &info));
- _syscall(chown(temp, info.st_uid, info.st_gid));
- _syscall(chmod(temp, info.st_mode));
- _syscall(unlink(path));
- _syscall(rename(temp, path));
- free(temp);
- }
-
- free(dir);
++filei;
} catch (const char *) {
++filee;
++filei;
}
+#ifndef LDID_NOSMINE
+# if OPENSSL_VERSION_NUM >= 0x30000000
+ OSSL_PROVIDER_unload(legacy);
+ OSSL_PROVIDER_unload(deflt);
+# endif
+#endif
+
return filee;
}
+#endif
git.ckatri.com / ldid.git / blobdiff