/* 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 <cstdio>
+#include <cstdlib>
#include <cstring>
#include <fstream>
-#include <map>
+#include <iostream>
+#include <memory>
+#include <set>
#include <sstream>
#include <string>
#include <vector>
-#include <dlfcn.h>
+#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/err.h>
+#include <openssl/pem.h>
+#include <openssl/pkcs7.h>
+#include <openssl/pkcs12.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
+#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
+#endif
+
+#ifndef LDID_NOPLIST
#include <plist/plist.h>
+#endif
+
+#include "ldid.hpp"
+
+#define _assert___(line) \
+ #line
+#define _assert__(line) \
+ _assert___(line)
+
+#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))
+
+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 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 timestamp;
uint32_t flags;
uint32_t reserved1;
uint32_t reserved2;
+ uint32_t reserved3;
} _packed;
struct linkedit_data_command {
return value;
}
-uint16_t Swap_(uint16_t value) {
+static const uint8_t PageShift_(0x0c);
+static const uint32_t PageSize_(1 << PageShift_);
+
+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 Swapped {
protected:
bool swapped_;
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;
- }
+ 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;
- 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_));
- }
- }
+ 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_);
}
};
}
};
-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)
uint8_t spare1;
uint8_t pageSize;
uint32_t spare2;
+ uint32_t scatterOffset;
+ uint32_t teamIDOffset;
+ uint32_t spare3;
+ uint64_t codeLimit64;
} _packed;
+#ifndef LDID_NOFLAGT
extern "C" uint32_t hash(uint8_t *k, uint32_t length, uint32_t initval);
+#endif
+
+static void sha1(uint8_t *hash, const void *data, size_t size) {
+ LDID_SHA1(static_cast<const uint8_t *>(data), size, hash);
+}
-void sha1(uint8_t *hash, const void *data, size_t size) {
- SHA1(static_cast<const uint8_t *>(data), size, hash);
+static void sha1(std::vector<char> &hash, const void *data, size_t size) {
+ hash.resize(LDID_SHA1_DIGEST_LENGTH);
+ sha1(reinterpret_cast<uint8_t *>(hash.data()), data, size);
}
struct CodesignAllocation {
uint32_t size_;
uint32_t limit_;
uint32_t alloc_;
- uint32_t special_;
uint32_t align_;
- CodesignAllocation(FatMachHeader mach_header, size_t offset, size_t size, size_t limit, size_t alloc, size_t special, size_t align) :
+ CodesignAllocation(FatMachHeader mach_header, size_t offset, size_t size, size_t limit, size_t alloc, size_t align) :
mach_header_(mach_header),
offset_(offset),
size_(size),
limit_(limit),
alloc_(alloc),
- special_(special),
align_(align)
{
}
};
+#ifndef LDID_NOTOOLS
class File {
private:
int file_;
void open(const char *path, int flags) {
_assert(file_ == -1);
- _syscall(file_ = ::open(path, flags));
+ file_ = _syscall(::open(path, flags));
}
int file() const {
{
}
- Map(const char *path, int oflag, int pflag, int mflag) :
+ Map(const std::string &path, int oflag, int pflag, int mflag) :
Map()
{
open(path, oflag, pflag, mflag);
}
- Map(const char *path, bool edit) :
+ Map(const std::string &path, bool edit) :
Map()
{
open(path, edit);
clear();
}
- void open(const char *path, int oflag, int pflag, int mflag) {
+ bool empty() const {
+ return data_ == NULL;
+ }
+
+ void open(const std::string &path, int oflag, int pflag, int mflag) {
clear();
- file_.open(path, oflag);
+ file_.open(path.c_str(), oflag);
int file(file_.file());
struct stat stat;
_syscall(fstat(file, &stat));
size_ = stat.st_size;
- _syscall(data_ = mmap(NULL, size_, pflag, mflag, file, 0));
+ data_ = _syscall(mmap(NULL, size_, pflag, mflag, file, 0));
}
- void open(const char *path, bool edit) {
+ void open(const std::string &path, bool edit) {
if (edit)
open(path, O_RDWR, PROT_READ | PROT_WRITE, MAP_SHARED);
else
return std::string(static_cast<char *>(data_), size_);
}
};
+#endif
-void resign(void *idata, size_t isize, std::streambuf &output, const char *name, const std::string &entitlements) {
- FatHeader source(idata, isize);
+namespace ldid {
- uint8_t pageshift(0x0c);
- uint32_t pagesize(1 << pageshift);
+static void Allocate(const void *idata, size_t isize, std::streambuf &output, const Functor<size_t (const MachHeader &, size_t)> &allocate, const Functor<size_t (const MachHeader &, std::streambuf &output, size_t, const std::string &, const char *)> &save) {
+ FatHeader source(const_cast<void *>(idata), isize);
size_t offset(0);
if (source.IsFat())
size = end;
}
- size_t alloc(0);
- uint32_t special(0);
-
- if (name != NULL) {
- alloc += sizeof(struct SuperBlob);
-
- special = std::max(special, CSSLOT_REQUIREMENTS);
- alloc += sizeof(struct BlobIndex);
- alloc += 0xc;
+ size_t alloc(allocate(mach_header, size));
- if (entitlements.size() != 0) {
- special = std::max(special, CSSLOT_ENTITLEMENTS);
- alloc += sizeof(struct BlobIndex);
- alloc += sizeof(struct Blob);
- alloc += entitlements.size();
- }
-
- special = std::max(special, CSSLOT_CODEDIRECTORY);
- alloc += sizeof(struct BlobIndex);
- alloc += sizeof(struct Blob);
- alloc += sizeof(struct CodeDirectory);
- alloc += strlen(name) + 1;
-
- uint32_t normal((size + pagesize - 1) / pagesize);
- alloc = Align(alloc + (special + normal) * SHA_DIGEST_LENGTH, 16);
+ 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;
}
- auto *fat_arch(mach_header.GetFatArch());
- uint32_t align(fat_arch == NULL ? 0 : source.Swap(fat_arch->align));
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, special, align));
+ allocations.push_back(CodesignAllocation(mach_header, offset, size, limit, alloc, align));
offset += size + alloc;
- offset = Align(offset, 16);
+ offset = Align(offset, 0x10);
}
size_t position(0);
_foreach (load_command, mach_header.GetLoadCommands()) {
std::string copy(reinterpret_cast<const char *>(load_command), load_command->cmdsize);
- switch (uint32_t cmd = mach_header.Swap(load_command->cmd)) {
+ switch (mach_header.Swap(load_command->cmd)) {
case LC_CODE_SIGNATURE:
continue;
break;
break;
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, 0x1000);
+ segment_command->vmsize = Align(size, 1 << allocation.align_);
} break;
case LC_SEGMENT_64: {
break;
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, 0x1000);
+ segment_command->vmsize = Align(size, 1 << allocation.align_);
} break;
}
commands.push_back(copy);
}
- if (name != NULL) {
+ 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)));
pad(output, allocation.limit_ - allocation.size_);
position += allocation.limit_ - allocation.size_;
- if (name != NULL) {
- std::map<uint32_t, std::string> blobs;
+ size_t saved(save(mach_header, output, allocation.limit_, overlap, top));
+ if (allocation.alloc_ > saved)
+ pad(output, allocation.alloc_ - saved);
+ position += allocation.alloc_;
+ }
+}
- if (true) {
- std::stringbuf data;
+}
- Blob blob;
- blob.magic = Swap(CSMAGIC_REQUIREMENTS);
- blob.length = Swap(uint32_t(sizeof(Blob) + sizeof(uint32_t)));
- put(data, &blob, sizeof(blob));
+typedef std::map<uint32_t, std::string> Blobs;
- uint32_t requirements(0);
- requirements = Swap(0);
- put(data, &requirements, sizeof(requirements));
+static void insert(Blobs &blobs, uint32_t slot, const std::stringbuf &buffer) {
+ auto value(buffer.str());
+ std::swap(blobs[slot], value);
+}
- blobs.insert(std::make_pair(CSSLOT_REQUIREMENTS, data.str()));
- }
+static void 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));
+ std::swap(blobs[slot], value);
+}
- if (entitlements.size() != 0) {
- std::stringbuf data;
+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();
+ }
- Blob blob;
- blob.magic = Swap(CSMAGIC_EMBEDDED_ENTITLEMENTS);
- blob.length = Swap(uint32_t(sizeof(blob) + entitlements.size()));
- put(data, &blob, sizeof(blob));
+ _foreach (blob, blobs)
+ put(output, blob.second.data(), blob.second.size());
- put(data, entitlements.data(), entitlements.size());
+ return offset;
+}
- blobs.insert(std::make_pair(CSSLOT_ENTITLEMENTS, data.str()));
- }
+#ifndef LDID_NOSMIME
+class Buffer {
+ private:
+ BIO *bio_;
- if (true) {
- std::stringbuf data;
-
- uint32_t normal((allocation.limit_ + pagesize - 1) / pagesize);
-
- Blob blob;
- blob.magic = Swap(CSMAGIC_CODEDIRECTORY);
- blob.length = Swap(uint32_t(sizeof(blob) + sizeof(CodeDirectory) + strlen(name) + 1 + SHA_DIGEST_LENGTH * (allocation.special_ + normal)));
- put(data, &blob, sizeof(blob));
-
- CodeDirectory directory;
- directory.version = Swap(uint32_t(0x00020001));
- directory.flags = Swap(uint32_t(0));
- directory.hashOffset = Swap(uint32_t(sizeof(blob) + sizeof(CodeDirectory) + strlen(name) + 1 + SHA_DIGEST_LENGTH * allocation.special_));
- directory.identOffset = Swap(uint32_t(sizeof(blob) + sizeof(CodeDirectory)));
- directory.nSpecialSlots = Swap(allocation.special_);
- directory.codeLimit = Swap(allocation.limit_);
- directory.nCodeSlots = Swap(normal);
- directory.hashSize = SHA_DIGEST_LENGTH;
- directory.hashType = CS_HASHTYPE_SHA1;
- directory.spare1 = 0x00;
- directory.pageSize = pageshift;
- directory.spare2 = Swap(uint32_t(0));
- put(data, &directory, sizeof(directory));
-
- put(data, name, strlen(name) + 1);
-
- uint8_t storage[allocation.special_ + normal][SHA_DIGEST_LENGTH];
- uint8_t (*hashes)[SHA_DIGEST_LENGTH] = storage + allocation.special_;
-
- memset(storage, 0, sizeof(*storage) * allocation.special_);
-
- _foreach (blob, blobs) {
- auto local(reinterpret_cast<const Blob *>(&blob.second[0]));
- sha1((uint8_t *) (hashes - blob.first), local, Swap(local->length));
- }
+ public:
+ Buffer(BIO *bio) :
+ bio_(bio)
+ {
+ _assert(bio_ != NULL);
+ }
- if (normal != 1)
- for (size_t i = 0; i != normal - 1; ++i)
- sha1(hashes[i], (pagesize * i < overlap.size() ? overlap.data() : top) + pagesize * i, pagesize);
- if (normal != 0)
- sha1(hashes[normal - 1], top + pagesize * (normal - 1), ((allocation.limit_ - 1) % pagesize) + 1);
+ Buffer() :
+ bio_(BIO_new(BIO_s_mem()))
+ {
+ }
- put(data, storage, sizeof(storage));
+ Buffer(const char *data, size_t size) :
+ Buffer(BIO_new_mem_buf(const_cast<char *>(data), size))
+ {
+ }
- blobs.insert(std::make_pair(CSSLOT_CODEDIRECTORY, data.str()));
- }
+ 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);
+ _assert(PKCS12_parse(value_, "", &key_, &cert_, &ca_) != 0);
+ _assert(key_ != NULL);
+ _assert(cert_ != NULL);
+ }
+
+ Stuff(const std::string &data) :
+ Stuff(Buffer(data))
+ {
+ }
- size_t total(0);
+ ~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) :
+ value_(PKCS7_sign(stuff, stuff, stuff, data, PKCS7_BINARY | PKCS7_DETACHED))
+ {
+ _assert(value_ != NULL);
+ }
+
+ ~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:
+ std::vector<char> &hash_;
+ LDID_SHA1_CTX context_;
+
+ public:
+ HashBuffer(std::vector<char> &hash) :
+ hash_(hash)
+ {
+ LDID_SHA1_Init(&context_);
+ }
+
+ ~HashBuffer() {
+ hash_.resize(LDID_SHA1_DIGEST_LENGTH);
+ LDID_SHA1_Final(reinterpret_cast<uint8_t *>(hash_.data()), &context_);
+ }
+
+ virtual std::streamsize xsputn(const char_type *data, std::streamsize size) {
+ LDID_SHA1_Update(&context_, 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(std::vector<char> &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 {
+
+void Sign(const void *idata, size_t isize, std::streambuf &output, const std::string &identifier, const std::string &entitlements, const std::string &key, const Slots &slots) {
+ std::string team;
+
+#ifndef LDID_NOSMIME
+ if (!key.empty()) {
+ std::stringbuf data;
+ Stuff stuff(key);
+ auto name(X509_get_subject_name(stuff));
+ _assert(name != NULL);
+ auto index(X509_NAME_get_index_by_NID(name, NID_organizationalUnitName, -1));
+ _assert(index >= 0);
+ auto next(X509_NAME_get_index_by_NID(name, NID_organizationalUnitName, 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);
+ team.assign(reinterpret_cast<char *>(ASN1_STRING_data(asn)), ASN1_STRING_length(asn));
+ }
+#endif
+
+ Allocate(idata, isize, output, fun([&](const MachHeader &mach_header, size_t size) -> size_t {
+ size_t alloc(sizeof(struct SuperBlob));
+
+ uint32_t special(0);
+
+ special = std::max(special, CSSLOT_REQUIREMENTS);
+ alloc += sizeof(struct BlobIndex);
+ alloc += 0xc;
+
+ if (!entitlements.empty()) {
+ special = std::max(special, CSSLOT_ENTITLEMENTS);
+ alloc += sizeof(struct BlobIndex);
+ alloc += sizeof(struct Blob);
+ alloc += entitlements.size();
+ }
+
+ special = std::max(special, CSSLOT_CODEDIRECTORY);
+ alloc += sizeof(struct BlobIndex);
+ alloc += sizeof(struct Blob);
+ alloc += sizeof(struct CodeDirectory);
+ alloc += identifier.size() + 1;
+
+ if (!team.empty())
+ alloc += team.size() + 1;
+
+ if (!key.empty()) {
+ alloc += sizeof(struct BlobIndex);
+ alloc += sizeof(struct Blob);
+ // XXX: this is just a "sufficiently large number"
+ alloc += 0x3000;
+ }
+
+ _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);
+ }));
+
+ uint32_t normal((size + PageSize_ - 1) / PageSize_);
+ alloc = Align(alloc + (special + normal) * LDID_SHA1_DIGEST_LENGTH, 16);
+ return alloc;
+ }), fun([&](const MachHeader &mach_header, std::streambuf &output, size_t limit, const std::string &overlap, const char *top) -> size_t {
+ Blobs blobs;
+
+ if (true) {
+ std::stringbuf data;
+
+ Blobs requirements;
+ put(data, CSMAGIC_REQUIREMENTS, requirements);
+
+ insert(blobs, CSSLOT_REQUIREMENTS, data);
+ }
+
+ if (!entitlements.empty()) {
+ std::stringbuf data;
+ put(data, entitlements.data(), entitlements.size());
+ insert(blobs, CSSLOT_ENTITLEMENTS, CSMAGIC_EMBEDDED_ENTITLEMENTS, data);
+ }
+
+ if (true) {
+ std::stringbuf 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)
+ sha1(posts[CSSLOT_INFOSLOT], data, size);
+ }));
+
+ uint32_t special(0);
_foreach (blob, blobs)
- total += blob.second.size();
+ 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(0x00020200));
+ directory.flags = Swap(uint32_t(0));
+ directory.nSpecialSlots = Swap(special);
+ directory.codeLimit = Swap(uint32_t(limit));
+ directory.nCodeSlots = Swap(normal);
+ directory.hashSize = LDID_SHA1_DIGEST_LENGTH;
+ directory.hashType = CS_HASHTYPE_SHA1;
+ directory.spare1 = 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(0));
+
+ 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 += LDID_SHA1_DIGEST_LENGTH * special;
+ directory.hashOffset = Swap(uint32_t(offset));
+ offset += LDID_SHA1_DIGEST_LENGTH * normal;
+
+ put(data, &directory, sizeof(directory));
+
+ put(data, identifier.c_str(), identifier.size() + 1);
+ put(data, team.c_str(), team.size() + 1);
- struct SuperBlob super;
- super.blob.magic = Swap(CSMAGIC_EMBEDDED_SIGNATURE);
- 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));
+ uint8_t storage[special + normal][LDID_SHA1_DIGEST_LENGTH];
+ uint8_t (*hashes)[LDID_SHA1_DIGEST_LENGTH] = storage + special;
- uint32_t offset(sizeof(SuperBlob) + sizeof(BlobIndex) * blobs.size());
- position += offset + total;
+ memset(storage, 0, sizeof(*storage) * special);
_foreach (blob, blobs) {
- BlobIndex index;
- index.type = Swap(blob.first);
- index.offset = Swap(offset);
- put(output, &index, sizeof(index));
- offset += blob.second.size();
+ auto local(reinterpret_cast<const Blob *>(&blob.second[0]));
+ sha1((uint8_t *) (hashes - blob.first), local, Swap(local->length));
}
- _foreach (blob, blobs)
- put(output, blob.second.data(), blob.second.size());
+ _foreach (slot, posts) {
+ _assert(sizeof(*hashes) == slot.second.size());
+ memcpy(hashes - slot.first, slot.second.data(), slot.second.size());
+ }
+
+ if (normal != 1)
+ for (size_t i = 0; i != normal - 1; ++i)
+ sha1(hashes[i], (PageSize_ * i < overlap.size() ? overlap.data() : top) + PageSize_ * i, PageSize_);
+ if (normal != 0)
+ sha1(hashes[normal - 1], top + PageSize_ * (normal - 1), ((limit - 1) % PageSize_) + 1);
- if (allocation.alloc_ > position)
- pad(output, allocation.alloc_ - position);
+ put(data, storage, sizeof(storage));
+
+ insert(blobs, CSSLOT_CODEDIRECTORY, CSMAGIC_CODEDIRECTORY, data);
}
+
+#ifndef LDID_NOSMIME
+ if (!key.empty()) {
+ std::stringbuf data;
+ const std::string &sign(blobs[CSSLOT_CODEDIRECTORY]);
+
+ Stuff stuff(key);
+ Buffer bio(sign);
+
+ Signature signature(stuff, sign);
+ Buffer result(signature);
+ std::string value(result);
+ put(data, value.data(), value.size());
+
+ insert(blobs, CSSLOT_SIGNATURESLOT, CSMAGIC_BLOBWRAPPER, data);
+ }
+#endif
+
+ return put(output, CSMAGIC_EMBEDDED_SIGNATURE, blobs);
+ }));
+}
+
+#ifndef LDID_NOTOOLS
+static void Unsign(void *idata, size_t isize, std::streambuf &output) {
+ Allocate(idata, isize, output, fun([](const MachHeader &mach_header, size_t size) -> size_t {
+ return 0;
+ }), fun([](const MachHeader &mach_header, std::streambuf &output, size_t limit, const std::string &overlap, const char *top) -> size_t {
+ return 0;
+ }));
+}
+
+std::string DiskFolder::Path(const std::string &path) {
+ return path_ + "/" + path;
+}
+
+DiskFolder::DiskFolder(const std::string &path) :
+ path_(path)
+{
+}
+
+DiskFolder::~DiskFolder() {
+ if (!std::uncaught_exception())
+ for (const auto &commit : commit_)
+ Commit(commit.first, commit.second);
+}
+
+void DiskFolder::Find(const std::string &root, const std::string &base, const Functor<void (const std::string &, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &)>&code) {
+ 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.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;
+ default:
+ _assert_(false, "d_type=%u", child->d_type);
+ }
+#endif
+
+ if (directory)
+ Find(root, base + name + "/", code);
+ else
+ code(base + name, fun([&](const Functor<void (std::streambuf &, std::streambuf &)> &code) {
+ std::string access(root + base + name);
+ _assert_(Open(access, fun([&](std::streambuf &data, const void *flag) {
+ NullBuffer save;
+ code(data, save);
+ })), "open(): %s", access.c_str());
+ }));
+ }
+}
+
+void DiskFolder::Save(const std::string &path, const void *flag, const Functor<void (std::streambuf &)> &code) {
+ std::filebuf save;
+ auto from(Path(path));
+ commit_[from] = Temporary(save, from);
+ code(save);
+}
+
+bool DiskFolder::Open(const std::string &path, const Functor<void (std::streambuf &, const void *)> &code) {
+ std::filebuf data;
+ auto result(data.open(Path(path).c_str(), std::ios::binary | std::ios::in));
+ if (result == NULL)
+ return false;
+ _assert(result == &data);
+ code(data, NULL);
+ return true;
+}
+
+void DiskFolder::Find(const std::string &path, const Functor<void (const std::string &, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &)>&code) {
+ Find(path, "", code);
+}
+#endif
+
+SubFolder::SubFolder(Folder &parent, const std::string &path) :
+ parent_(parent),
+ path_(path)
+{
+}
+
+void SubFolder::Save(const std::string &path, const void *flag, const Functor<void (std::streambuf &)> &code) {
+ return parent_.Save(path_ + path, flag, code);
+}
+
+bool SubFolder::Open(const std::string &path, const Functor<void (std::streambuf &, const void *)> &code) {
+ return parent_.Open(path_ + path, code);
+}
+
+void SubFolder::Find(const std::string &path, const Functor<void (const std::string &, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &)> &code) {
+ return parent_.Find(path_ + path, code);
+}
+
+std::string UnionFolder::Map(const std::string &path) {
+ 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 &, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &)> &code, const std::string &file, const Functor<void (const Functor<void (std::streambuf &, const void *)> &)> &save) {
+ if (file.size() >= path.size() && file.substr(0, path.size()) == path)
+ code(file.substr(path.size()), fun([&](const Functor<void (std::streambuf &, std::streambuf &)> &code) {
+ save(fun([&](std::streambuf &data, const void *flag) {
+ parent_.Save(file, flag, fun([&](std::streambuf &save) {
+ code(data, save);
+ }));
+ }));
+ }));
+}
+
+UnionFolder::UnionFolder(Folder &parent) :
+ parent_(parent)
+{
+}
+
+void UnionFolder::Save(const std::string &path, const void *flag, const Functor<void (std::streambuf &)> &code) {
+ return parent_.Save(Map(path), flag, code);
+}
+
+bool UnionFolder::Open(const std::string &path, const Functor<void (std::streambuf &, const void *)> &code) {
+ auto file(resets_.find(path));
+ if (file == resets_.end())
+ return parent_.Open(Map(path), code);
+ auto &entry(file->second);
+
+ auto &data(entry.first);
+ data.pubseekpos(0, std::ios::in);
+ code(data, entry.second);
+ return true;
+}
+
+void UnionFolder::Find(const std::string &path, const Functor<void (const std::string &, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &)> &code) {
+ parent_.Find(path, fun([&](const std::string &name, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &save) {
+ if (deletes_.find(path + name) == deletes_.end())
+ code(name, save);
+ }));
+
+ for (auto &reset : resets_)
+ Map(path, code, reset.first, fun([&](const Functor<void (std::streambuf &, const void *)> &code) {
+ auto &entry(reset.second);
+ entry.first.pubseekpos(0, std::ios::in);
+ code(entry.first, entry.second);
+ }));
+
+ for (auto &remap : remaps_)
+ Map(path, code, remap.first, fun([&](const Functor<void (std::streambuf &, const void *)> &code) {
+ parent_.Open(remap.second, fun([&](std::streambuf &data, const void *flag) {
+ code(data, flag);
+ }));
+ }));
+}
+
+#ifndef LDID_NOTOOLS
+static size_t copy(std::streambuf &source, std::streambuf &target) {
+ size_t total(0);
+ for (;;) {
+ char data[4096];
+ size_t writ(source.sgetn(data, sizeof(data)));
+ if (writ == 0)
+ break;
+ _assert(target.sputn(data, writ) == writ);
+ total += writ;
+ }
+ return total;
+}
+
+#ifndef LDID_NOPLIST
+static plist_t plist(const std::string &data) {
+ 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, const Functor<void (plist_t)> &code) {
+ std::stringbuf data;
+ copy(buffer, data);
+ 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_;
+
+ public:
+ Expression(const std::string &code) {
+ _assert_(regcomp(®ex_, code.c_str(), REG_EXTENDED | REG_NOSUB) == 0, "regcomp()");
+ }
+
+ ~Expression() {
+ regfree(®ex_);
+ }
+
+ bool operator ()(const std::string &data) const {
+ auto value(regexec(®ex_, data.c_str(), 0, NULL, 0));
+ if (value == REG_NOMATCH)
+ return false;
+ _assert_(value == 0, "regexec()");
+ return true;
+ }
+};
+
+struct Rule {
+ unsigned weight_;
+ Mode mode_;
+ std::string code_;
+
+ mutable std::auto_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
+void Sign(std::streambuf &buffer, std::vector<char> &hash, std::streambuf &save, const std::string &identifier, const std::string &entitlements, const std::string &key, const Slots &slots) {
+ // XXX: this is a miserable fail
+ std::stringbuf temp;
+ copy(buffer, temp);
+ auto data(temp.str());
+
+ HashProxy proxy(hash, save);
+ Sign(data.data(), data.size(), proxy, identifier, entitlements, key, slots);
}
-int main(int argc, const char *argv[]) {
+std::string Bundle(const std::string &root, Folder &folder, const std::string &key, std::map<std::string, std::vector<char>> &remote, const std::string &entitlements) {
+ std::string executable;
+ std::string identifier;
+
+ static const std::string info("Info.plist");
+
+ _assert_(folder.Open(info, fun([&](std::streambuf &buffer, const void *flag) {
+ plist_d(buffer, fun([&](plist_t node) {
+ executable = plist_s(plist_dict_get_item(node, "CFBundleExecutable"));
+ identifier = plist_s(plist_dict_get_item(node, "CFBundleIdentifier"));
+ }));
+ })), "open(): Info.plist");
+
+ 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"]);
+
+ folder.Open(signature, fun([&](std::streambuf &buffer, const void *) {
+ plist_d(buffer, fun([&](plist_t node) {
+ // XXX: maybe attempt to preserve existing rules
+ }));
+ }));
+
+ if (true) {
+ rules1.insert(Rule{1, NoMode, "^"});
+ rules1.insert(Rule{10000, OmitMode, "^(Frameworks/[^/]+\\.framework/|PlugIns/[^/]+\\.appex/|PlugIns/[^/]+\\.appex/Frameworks/[^/]+\\.framework/|())SC_Info/[^/]+\\.(sinf|supf|supp)$"});
+ rules1.insert(Rule{1000, OptionalMode, "^.*\\.lproj/"});
+ rules1.insert(Rule{1100, OmitMode, "^.*\\.lproj/locversion.plist$"});
+ rules1.insert(Rule{10000, OmitMode, "^Watch/[^/]+\\.app/(Frameworks/[^/]+\\.framework/|PlugIns/[^/]+\\.appex/|PlugIns/[^/]+\\.appex/Frameworks/[^/]+\\.framework/)SC_Info/[^/]+\\.(sinf|supf|supp)$"});
+ rules1.insert(Rule{1, NoMode, "^version.plist$"});
+ }
+
+ if (true) {
+ rules2.insert(Rule{11, NoMode, ".*\\.dSYM($|/)"});
+ rules2.insert(Rule{20, NoMode, "^"});
+ rules2.insert(Rule{2000, OmitMode, "^(.*/)?\\.DS_Store$"});
+ rules2.insert(Rule{10000, OmitMode, "^(Frameworks/[^/]+\\.framework/|PlugIns/[^/]+\\.appex/|PlugIns/[^/]+\\.appex/Frameworks/[^/]+\\.framework/|())SC_Info/[^/]+\\.(sinf|supf|supp)$"});
+ rules2.insert(Rule{10, NestedMode, "^(Frameworks|SharedFrameworks|PlugIns|Plug-ins|XPCServices|Helpers|MacOS|Library/(Automator|Spotlight|LoginItems))/"});
+ rules2.insert(Rule{1, NoMode, "^.*"});
+ rules2.insert(Rule{1000, OptionalMode, "^.*\\.lproj/"});
+ rules2.insert(Rule{1100, OmitMode, "^.*\\.lproj/locversion.plist$"});
+ rules2.insert(Rule{20, OmitMode, "^Info\\.plist$"});
+ rules2.insert(Rule{20, OmitMode, "^PkgInfo$"});
+ rules2.insert(Rule{10000, OmitMode, "^Watch/[^/]+\\.app/(Frameworks/[^/]+\\.framework/|PlugIns/[^/]+\\.appex/|PlugIns/[^/]+\\.appex/Frameworks/[^/]+\\.framework/)SC_Info/[^/]+\\.(sinf|supf|supp)$"});
+ rules2.insert(Rule{10, NestedMode, "^[^/]+$"});
+ rules2.insert(Rule{20, NoMode, "^embedded\\.provisionprofile$"});
+ rules2.insert(Rule{20, NoMode, "^version\\.plist$"});
+ }
+
+ std::map<std::string, std::vector<char>> local;
+
+ static Expression nested("^PlugIns/[^/]*\\.appex/Info\\.plist$");
+ static Expression dylib("^[^/]*\\.dylib$");
+
+ folder.Find("", fun([&](const std::string &name, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &code) {
+ if (!nested(name))
+ return;
+ auto bundle(root + Split(name).dir);
+ SubFolder subfolder(folder, bundle);
+ Bundle(bundle, subfolder, key, local, "");
+ }));
+
+ folder.Find("", fun([&](const std::string &name, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &code) {
+ // BundleDiskRep::adjustResources -> builder.addExclusion
+ if (name == executable || Starts(name, directory) || Starts(name, "_MASReceipt/") || name == "CodeResources")
+ return;
+
+ auto &hash(local[name]);
+ if (!hash.empty())
+ return;
+
+ code(fun([&](std::streambuf &data, std::streambuf &save) {
+ if (dylib(name)) {
+ Slots slots;
+ Sign(data, hash, save, identifier, "", key, slots);
+ } else {
+ HashProxy proxy(hash, save);
+ copy(data, proxy);
+ }
+ }));
+
+ _assert(hash.size() == LDID_SHA1_DIGEST_LENGTH);
+ }));
+
+ 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();
+
+ for (const auto &hash : local)
+ for (const auto &rule : version.second)
+ if (rule(hash.first)) {
+ if (rule.mode_ == NoMode)
+ plist_dict_set_item(files, hash.first.c_str(), plist_new_data(hash.second.data(), hash.second.size()));
+ else if (rule.mode_ == OptionalMode) {
+ auto entry(plist_new_dict());
+ plist_dict_set_item(entry, "hash", plist_new_data(hash.second.data(), hash.second.size()));
+ plist_dict_set_item(entry, "optional", plist_new_bool(true));
+ plist_dict_set_item(files, hash.first.c_str(), entry);
+ }
+
+ break;
+ }
+ }
+
+ 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, NULL, fun([&](std::streambuf &save) {
+ HashProxy proxy(local[signature], save);
+ char *xml(NULL);
+ uint32_t size;
+ plist_to_xml(plist, &xml, &size);
+ _scope({ free(xml); });
+ put(proxy, xml, size);
+ }));
+
+ folder.Open(executable, fun([&](std::streambuf &buffer, const void *flag) {
+ folder.Save(executable, flag, fun([&](std::streambuf &save) {
+ Slots slots;
+ slots[1] = local.at(info);
+ slots[3] = local.at(signature);
+ Sign(buffer, local[executable], save, identifier, entitlements, key, slots);
+ }));
+ }));
+
+ for (const auto &hash : local)
+ remote[root + hash.first] = hash.second;
+
+ return executable;
+}
+#endif
+
+#endif
+}
+
+#ifndef LDID_NOTOOLS
+int main(int argc, char *argv[]) {
+#ifndef LDID_NOSMIME
+ OpenSSL_add_all_algorithms();
+#endif
+
union {
uint16_t word;
uint8_t byte[2];
bool flag_r(false);
bool flag_e(false);
+#ifndef LDID_NOFLAGT
bool flag_T(false);
+#endif
bool flag_S(false);
bool flag_s(false);
bool flag_A(false);
bool flag_a(false);
+ bool flag_u(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 key;
+ ldid::Slots slots;
std::vector<std::string> files;
if (argv[argi][0] != '-')
files.push_back(argv[argi]);
else switch (argv[argi][1]) {
- case 'r': flag_r = true; break;
+ case 'r':
+ _assert(!flag_s);
+ _assert(!flag_S);
+ flag_r = true;
+ break;
+
case 'e': flag_e = true; break;
+ case 'E': {
+ const char *slot = argv[argi] + 2;
+ const char *colon = strchr(slot, ':');
+ _assert(colon != NULL);
+ Map file(colon + 1, O_RDONLY, PROT_READ, MAP_PRIVATE);
+ char *arge;
+ unsigned number(strtoul(slot, &arge, 0));
+ _assert(arge == colon);
+ sha1(slots[number], file.data(), file.size());
+ } 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 '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') {
}
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 'u': {
+ flag_u = true;
+ } break;
case 'I': {
flag_I = argv[argi] + 2;
break;
}
- _assert(!flag_S || !flag_r);
+ _assert(flag_S || key.empty());
+ _assert(flag_S || flag_I == NULL);
if (files.empty()) usage: {
exit(0);
size_t filei(0), filee(0);
_foreach (file, files) try {
- const char *path(file.c_str());
- const char *base = strrchr(path, '/');
-
- std::string dir;
- if (base != NULL)
- dir.assign(path, base++ - path + 1);
- else
- base = path;
-
- const char *name(flag_I ?: base);
- char *temp(NULL);
-
- if (flag_S || flag_r) {
+ std::string path(file);
+
+ struct stat info;
+ _syscall(stat(path.c_str(), &info));
+
+ if (S_ISDIR(info.st_mode)) {
+#ifndef LDID_NOPLIST
+ _assert(!flag_r);
+ ldid::DiskFolder folder(path);
+ std::map<std::string, std::vector<char>> hashes;
+ path += "/" + Bundle("", folder, key, hashes, entitlements);
+#else
+ _assert(false);
+#endif
+ } else if (flag_S || flag_r) {
Map input(path, O_RDONLY, PROT_READ, MAP_PRIVATE);
std::filebuf output;
- asprintf(&temp, "%s.%s.cs", dir.c_str(), base);
- _assert(output.open(temp, std::ios::out | std::ios::trunc | std::ios::binary) == &output);
+ Split split(path);
+ auto temp(Temporary(output, split));
+
+ if (flag_r)
+ ldid::Unsign(input.data(), input.size(), output);
+ else {
+ std::string identifier(flag_I ?: split.base.c_str());
+ ldid::Sign(input.data(), input.size(), output, identifier, entitlements, key, slots);
+ }
- resign(input.data(), input.size(), output, flag_S ? name : NULL, entitlements);
+ Commit(path, temp);
}
- Map mapping(temp ?: path, flag_T || flag_s);
+ bool modify(false);
+#ifndef LDID_NOFLAGT
+ if (flag_T)
+ modify = true;
+#endif
+ if (flag_s)
+ modify = true;
+
+ Map mapping(path, modify);
FatHeader fat_header(mapping.data(), mapping.size());
_foreach (mach_header, fat_header.GetMachHeaders()) {
signature = reinterpret_cast<struct linkedit_data_command *>(load_command);
else if (cmd == LC_ENCRYPTION_INFO || cmd == LC_ENCRYPTION_INFO_64)
encryption = reinterpret_cast<struct encryption_info_command *>(load_command);
+ 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 (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));
dylib_command->dylib.timestamp = mach_header.Swap(timed);
}
}
+#endif
}
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);
}
}
uint32_t begin = Swap(super->index[index].offset);
struct CodeDirectory *directory = reinterpret_cast<struct CodeDirectory *>(blob + begin);
- uint8_t (*hashes)[SHA_DIGEST_LENGTH] = reinterpret_cast<uint8_t (*)[SHA_DIGEST_LENGTH]>(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);
+ sha1(hashes[i], top + PageSize_ * i, PageSize_);
if (pages != 0)
- sha1(hashes[pages - 1], top + 0x1000 * (pages - 1), ((data - 1) % 0x1000) + 1);
+ sha1(hashes[pages - 1], top + PageSize_ * (pages - 1), ((data - 1) % PageSize_) + 1);
}
}
}
- 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);
- }
-
++filei;
} catch (const char *) {
++filee;
return filee;
}
+#endif
projects / ldid.git / blobdiff