X-Git-Url: https://git.saurik.com/ldid.git/blobdiff_plain/7c171fd3210535a9b5fcebfceefa71c773b990e2..f1df48331fb84ccca058563bad51529107533f1c:/ldid.cpp diff --git a/ldid.cpp b/ldid.cpp index d647c51..4ad9b2f 100644 --- a/ldid.cpp +++ b/ldid.cpp @@ -23,52 +23,115 @@ #include #include #include -#include +#include +#include +#include #include #include #include -#include +#include #include #include +#include #include #include +#include #include #include - +#include + +#ifndef LDID_NOSMIME +#include +#include +#include +#include +#endif + +#ifdef __APPLE__ +#include + +#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 +#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 +#endif + +#include "ldid.hpp" #define _assert___(line) \ #line #define _assert__(line) \ _assert___(line) -#define _assert_(e) \ - throw __FILE__ "(" _assert__(__LINE__) "): _assert(" e ")" -#define _assert(expr) \ +#ifndef $ +#define $(value) value +#endif + +#ifdef __EXCEPTIONS +#define _assert_(expr, format, ...) \ do if (!(expr)) { \ - fprintf(stderr, "%s(%u): _assert(%s); errno=%u\n", __FILE__, __LINE__, #expr, errno); \ - _assert_(#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 _syscall(expr) ({ \ - __typeof__(expr) _value; \ - do if ((long) (_value = (expr)) != -1) \ - break; \ - else switch (errno) { \ - case EINTR: \ - continue; \ - default: \ - _assert(false); \ - } while (true); \ - _value; \ -}) +#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__) + fprintf(stderr, $("_trace(%s:%u): %s\n"), __FILE__, __LINE__, $(__FUNCTION__)) #define _not(type) \ ((type) ~ (type) 0) @@ -88,6 +151,61 @@ struct Iterator_ { for (bool _suck(true); _suck; _suck = false) \ for (const __typeof__(*_item) &item = *_item; _suck; _suck = false) +class _Scope { +}; + +template +class Scope : + public _Scope +{ + private: + Function_ function_; + + public: + Scope(const Function_ &function) : + function_(function) + { + } + + ~Scope() { + function_(); + } +}; + +template +Scope _scope(const Function_ &function) { + return Scope(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; uint32_t nfat_arch; @@ -150,6 +268,16 @@ struct load_command { #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; @@ -317,6 +445,7 @@ struct section_64 { uint32_t flags; uint32_t reserved1; uint32_t reserved2; + uint32_t reserved3; } _packed; struct linkedit_data_command { @@ -350,15 +479,42 @@ struct encryption_info_command { #define BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED 0xb0 #define BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB 0xc0 -inline void get(std::streambuf &stream, void *data, size_t size) { - _assert(stream.sgetn(static_cast(data), size) == size); +static auto dummy([](double) {}); + +static std::streamsize read(std::streambuf &stream, void *data, size_t size) { + auto writ(stream.sgetn(static_cast(data), size)); + _assert(writ >= 0); + return writ; } -inline void put(std::streambuf &stream, const void *data, size_t size) { +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(data), size) == size); } -inline void pad(std::streambuf &stream, size_t size) { +static inline void put(std::streambuf &stream, const void *data, size_t size, const ldid::Functor &percent) { + percent(0); + for (size_t total(0); total != size;) { + auto writ(std::min(size - total, size_t(4096 * 4))); + _assert(stream.sputn(static_cast(data) + total, writ) == writ); + total += writ; + percent(double(total) / 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); @@ -372,13 +528,16 @@ Type_ Align(Type_ value, size_t align) { 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) | @@ -386,54 +545,51 @@ uint32_t Swap_(uint32_t value) { 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(value)); } -int32_t Swap_(int32_t value) { +static inline int32_t Swap_(int32_t value) { return Swap_(static_cast(value)); } -int64_t Swap_(int64_t value) { +static inline int64_t Swap_(int64_t value) { return Swap_(static_cast(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(value)); } -int32_t Swap(int32_t value) { +static inline int32_t Swap(int32_t value) { return Swap(static_cast(value)); } -int64_t Swap(int64_t value) { +static inline int64_t Swap(int64_t value) { return Swap(static_cast(value)); } -template -class Pointer; - class Swapped { protected: bool swapped_; @@ -558,85 +714,30 @@ class MachHeader : return load_commands; } - std::vector GetSegments(const char *segment_name) const { - std::vector segment_commands; - - _foreach (load_command, GetLoadCommands()) { - if (Swap(load_command->cmd) == LC_SEGMENT) { - segment_command *segment_command = reinterpret_cast(load_command); - if (strncmp(segment_command->segname, segment_name, 16) == 0) - segment_commands.push_back(segment_command); - } - } - - return segment_commands; - } - - std::vector GetSegments64(const char *segment_name) const { - std::vector segment_commands; - - _foreach (load_command, GetLoadCommands()) { - if (Swap(load_command->cmd) == LC_SEGMENT_64) { - segment_command_64 *segment_command = reinterpret_cast(load_command); - if (strncmp(segment_command->segname, segment_name, 16) == 0) - segment_commands.push_back(segment_command); - } - } - - return segment_commands; - } - - std::vector
GetSections(const char *segment_name, const char *section_name) const { - std::vector
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 &code) const { + _foreach (load_command, GetLoadCommands()) + switch (Swap(load_command->cmd)) { + case LC_SEGMENT: { + auto segment(reinterpret_cast(load_command)); + code(segment->segname, NULL, GetOffset(segment->fileoff), segment->filesize); + auto section(reinterpret_cast(segment + 1)); + for (uint32_t i(0), e(Swap(segment->nsects)); i != e; ++i, ++section) + code(segment->segname, section->sectname, GetOffset(segment->fileoff + section->offset), section->size); + } break; - template - Pointer 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(this, reinterpret_cast(address - Swap(section->addr) + Swap(section->offset) + (char *) mach_header_)); - } - } + case LC_SEGMENT_64: { + auto segment(reinterpret_cast(load_command)); + code(segment->segname, NULL, GetOffset(segment->fileoff), segment->filesize); + auto section(reinterpret_cast(segment + 1)); + for (uint32_t i(0), e(Swap(segment->nsects)); i != e; ++i, ++section) + code(segment->segname, section->sectname, GetOffset(segment->fileoff + section->offset), section->size); + } break; } - - next_command: - load_command = (struct load_command *) ((char *) load_command + Swap(load_command->cmdsize)); - } - - return Pointer(this); } template - Pointer GetOffset(uint32_t offset) { - return Pointer(this, reinterpret_cast(offset + (uint8_t *) mach_header_)); + Target_ *GetOffset(uint32_t offset) const { + return reinterpret_cast(offset + (uint8_t *) mach_header_); } }; @@ -707,38 +808,6 @@ class FatHeader : } }; -template -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 &operator ++() { - ++pointer_; - return *this; - } - - template - 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) @@ -754,10 +823,14 @@ class Pointer { #define CSSLOT_RESOURCEDIR uint32_t(0x00003) #define CSSLOT_APPLICATION uint32_t(0x00004) #define CSSLOT_ENTITLEMENTS uint32_t(0x00005) +#define CSSLOT_ALTERNATE uint32_t(0x01000) #define CSSLOT_SIGNATURESLOT uint32_t(0x10000) -#define CS_HASHTYPE_SHA1 1 +#define CS_HASHTYPE_SHA160_160 1 +#define CS_HASHTYPE_SHA256_256 2 +#define CS_HASHTYPE_SHA256_160 3 +#define CS_HASHTYPE_SHA386_386 4 struct BlobIndex { uint32_t type; @@ -788,12 +861,143 @@ struct CodeDirectory { uint8_t spare1; uint8_t pageSize; uint32_t spare2; + uint32_t scatterOffset; + uint32_t teamIDOffset; + //uint32_t spare3; + //uint64_t codeLimit64; } _packed; +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 &hash, const void *data, size_t size) const = 0; +}; -void sha1(uint8_t *hash, const void *data, size_t size) { - SHA1(static_cast(data), size, hash); +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(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 &hash, const void *data, size_t size) const { + hash.resize(LDID_SHA1_DIGEST_LENGTH); + return operator ()(reinterpret_cast(hash.data()), data, size); + } +}; + +struct AlgorithmSHA256 : + Algorithm +{ + AlgorithmSHA256() : + Algorithm(LDID_SHA256_DIGEST_LENGTH, CS_HASHTYPE_SHA256_256) + { + } + + 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(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 &hash, const void *data, size_t size) const { + hash.resize(LDID_SHA256_DIGEST_LENGTH); + return operator ()(reinterpret_cast(hash.data()), data, size); + } +}; + +static const std::vector &GetAlgorithms() { + static AlgorithmSHA1 sha1; + static AlgorithmSHA256 sha256; + + static Algorithm *array[] = { + &sha1, + &sha256, + }; + + static std::vector algorithms(array, array + sizeof(array) / sizeof(array[0])); + return algorithms; } struct CodesignAllocation { @@ -815,6 +1019,7 @@ struct CodesignAllocation { } }; +#ifndef LDID_NOTOOLS class File { private: int file_; @@ -832,7 +1037,7 @@ class File { void open(const char *path, int flags) { _assert(file_ == -1); - _syscall(file_ = ::open(path, flags)); + file_ = _syscall(::open(path, flags)); } int file() const { @@ -861,13 +1066,13 @@ class Map { { } - 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); @@ -877,20 +1082,24 @@ class Map { 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 @@ -909,52 +1118,40 @@ class Map { return std::string(static_cast(data_), size_); } }; +#endif -// I wish Apple cared about providing quality toolchains :/ - -template -class Functor; - -template -class Functor { - public: - virtual Type_ operator ()(Args_... args) const = 0; - virtual operator bool() const = 0; -}; - -template -class FunctorImpl; - -template -class FunctorImpl : - public Functor -{ - private: - const Value_ *value_; +namespace ldid { - public: - FunctorImpl() : - value_(NULL) - { - } +std::string Analyze(const void *data, size_t size) { + std::string entitlements; - FunctorImpl(const Value_ &value) : - value_(&value) - { - } + FatHeader fat_header(const_cast(data), size); + _foreach (mach_header, fat_header.GetMachHeaders()) + _foreach (load_command, mach_header.GetLoadCommands()) + if (mach_header.Swap(load_command->cmd) == LC_CODE_SIGNATURE) { + auto signature(reinterpret_cast(load_command)); + auto offset(mach_header.Swap(signature->dataoff)); + auto pointer(reinterpret_cast(mach_header.GetBase()) + offset); + auto super(reinterpret_cast(pointer)); - virtual Type_ operator ()(Args_... args) const { - return (*value_)(args...); - } -}; + 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(pointer + begin)); + auto writ(Swap(blob->length) - sizeof(*blob)); + + if (entitlements.empty()) + entitlements.assign(reinterpret_cast(blob + 1), writ); + else + _assert(entitlements.compare(0, entitlements.size(), reinterpret_cast(blob + 1), writ) == 0); + } + } -template -FunctorImpl fun(const Function_ &value) { - return value; + return entitlements; } -void resign(void *idata, size_t isize, std::streambuf &output, const Functor &allocate, const Functor &save) { - FatHeader source(idata, isize); +static void Allocate(const void *idata, size_t isize, std::streambuf &output, const Functor &allocate, const Functor &)> &save, const Functor &percent) { + FatHeader source(const_cast(idata), isize); size_t offset(0); if (source.IsFat()) @@ -989,10 +1186,29 @@ void resign(void *idata, size_t isize, std::streambuf &output, const Functoralign)); + 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; + } + offset = Align(offset, 1 << align); uint32_t limit(size); @@ -1001,7 +1217,7 @@ void resign(void *idata, size_t isize, std::streambuf &output, const Functor(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; @@ -1049,7 +1265,7 @@ void resign(void *idata, size_t isize, std::streambuf &output, const Functorfileoff))); segment_command->filesize = size; - segment_command->vmsize = Align(size, 0x1000); + segment_command->vmsize = Align(size, 1 << allocation.align_); } break; case LC_SEGMENT_64: { @@ -1058,7 +1274,7 @@ void resign(void *idata, size_t isize, std::streambuf &output, const Functorfileoff))); segment_command->filesize = size; - segment_command->vmsize = Align(size, 0x1000); + segment_command->vmsize = Align(size, 1 << allocation.align_); } break; } @@ -1114,195 +1330,1316 @@ void resign(void *idata, size_t isize, std::streambuf &output, const Functor saved) pad(output, allocation.alloc_ - saved); + else + _assert(allocation.alloc_ == saved); position += allocation.alloc_; } } -void resign(void *idata, size_t isize, std::streambuf &output, const std::string &name, const std::string &entitlements) { - uint8_t pageshift(0x0c); - uint32_t pagesize(1 << pageshift); +} - resign(idata, isize, output, fun([&](size_t size) -> size_t { - size_t alloc(sizeof(struct SuperBlob)); +typedef std::map Blobs; - uint32_t special(0); +static void insert(Blobs &blobs, uint32_t slot, const std::stringbuf &buffer) { + auto value(buffer.str()); + std::swap(blobs[slot], value); +} - special = std::max(special, CSSLOT_REQUIREMENTS); - alloc += sizeof(struct BlobIndex); - alloc += 0xc; +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(&blob), sizeof(blob)); + auto &save(blobs[slot]); + std::swap(save, value); + return save; +} - if (entitlements.size() != 0) { - special = std::max(special, CSSLOT_ENTITLEMENTS); - alloc += sizeof(struct BlobIndex); - alloc += sizeof(struct Blob); - alloc += entitlements.size(); - } +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(); + } - special = std::max(special, CSSLOT_CODEDIRECTORY); - alloc += sizeof(struct BlobIndex); - alloc += sizeof(struct Blob); - alloc += sizeof(struct CodeDirectory); - alloc += name.size() + 1; + _foreach (blob, blobs) + put(output, blob.second.data(), blob.second.size()); - uint32_t normal((size + pagesize - 1) / pagesize); - alloc = Align(alloc + (special + normal) * SHA_DIGEST_LENGTH, 16); - return alloc; - }), fun([&](std::streambuf &output, size_t limit, const std::string &overlap, const char *top) -> size_t { - std::map blobs; + return offset; +} - if (true) { - std::stringbuf data; +#ifndef LDID_NOSMIME +class Buffer { + private: + BIO *bio_; - Blob blob; - blob.magic = Swap(CSMAGIC_REQUIREMENTS); - blob.length = Swap(uint32_t(sizeof(Blob) + sizeof(uint32_t))); - put(data, &blob, sizeof(blob)); + public: + Buffer(BIO *bio) : + bio_(bio) + { + _assert(bio_ != NULL); + } - uint32_t requirements; - requirements = Swap(0); - put(data, &requirements, sizeof(requirements)); + Buffer() : + bio_(BIO_new(BIO_s_mem())) + { + } - blobs.insert(std::make_pair(CSSLOT_REQUIREMENTS, data.str())); - } + Buffer(const char *data, size_t size) : + Buffer(BIO_new_mem_buf(const_cast(data), size)) + { + } - if (entitlements.size() != 0) { - std::stringbuf data; + Buffer(const std::string &data) : + Buffer(data.data(), data.size()) + { + } - Blob blob; - blob.magic = Swap(CSMAGIC_EMBEDDED_ENTITLEMENTS); - blob.length = Swap(uint32_t(sizeof(blob) + entitlements.size())); - put(data, &blob, sizeof(blob)); + Buffer(PKCS7 *pkcs) : + Buffer() + { + _assert(i2d_PKCS7_bio(bio_, pkcs) != 0); + } - put(data, entitlements.data(), entitlements.size()); + ~Buffer() { + BIO_free_all(bio_); + } - blobs.insert(std::make_pair(CSSLOT_ENTITLEMENTS, data.str())); - } + operator BIO *() const { + return bio_; + } - if (true) { - std::stringbuf data; + explicit operator std::string() const { + char *data; + auto size(BIO_get_mem_data(bio_, &data)); + return std::string(data, size); + } +}; - uint32_t special(0); - _foreach (blob, blobs) - special = std::max(special, blob.first); - uint32_t normal((limit + pagesize - 1) / pagesize); +class Stuff { + private: + PKCS12 *value_; + EVP_PKEY *key_; + X509 *cert_; + STACK_OF(X509) *ca_; - Blob blob; - blob.magic = Swap(CSMAGIC_CODEDIRECTORY); - blob.length = Swap(uint32_t(sizeof(blob) + sizeof(CodeDirectory) + name.size() + 1 + SHA_DIGEST_LENGTH * (special + normal))); - put(data, &blob, sizeof(blob)); + public: + Stuff(BIO *bio) : + value_(d2i_PKCS12_bio(bio, NULL)), + ca_(NULL) + { + _assert(value_ != NULL); + _assert(PKCS12_parse(value_, "", &key_, &cert_, &ca_) != 0); - CodeDirectory directory; - directory.version = Swap(uint32_t(0x00020001)); - directory.flags = Swap(uint32_t(0)); - directory.hashOffset = Swap(uint32_t(sizeof(blob) + sizeof(CodeDirectory) + name.size() + 1 + SHA_DIGEST_LENGTH * special)); - directory.identOffset = Swap(uint32_t(sizeof(blob) + sizeof(CodeDirectory))); - directory.nSpecialSlots = Swap(special); - directory.codeLimit = Swap(uint32_t(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)); + _assert(key_ != NULL); + _assert(cert_ != NULL); - put(data, name.c_str(), name.size() + 1); + if (ca_ == NULL) + ca_ = sk_X509_new_null(); + _assert(ca_ != NULL); + } - uint8_t storage[special + normal][SHA_DIGEST_LENGTH]; - uint8_t (*hashes)[SHA_DIGEST_LENGTH] = storage + special; + Stuff(const std::string &data) : + Stuff(Buffer(data)) + { + } - memset(storage, 0, sizeof(*storage) * special); + ~Stuff() { + sk_X509_pop_free(ca_, X509_free); + X509_free(cert_); + EVP_PKEY_free(key_); + PKCS12_free(value_); + } - _foreach (blob, blobs) { - auto local(reinterpret_cast(&blob.second[0])); - sha1((uint8_t *) (hashes - blob.first), local, Swap(local->length)); - } + operator PKCS12 *() const { + return value_; + } - 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); + operator EVP_PKEY *() const { + return key_; + } - put(data, storage, sizeof(storage)); + operator X509 *() const { + return cert_; + } - blobs.insert(std::make_pair(CSSLOT_CODEDIRECTORY, data.str())); - } + operator STACK_OF(X509) *() const { + return ca_; + } +}; - size_t total(0); - _foreach (blob, blobs) - total += blob.second.size(); +class Signature { + private: + PKCS7 *value_; - 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)); + public: + Signature(const Stuff &stuff, const Buffer &data, const std::string &xml) { + value_ = PKCS7_new(); + _assert(value_ != NULL); - size_t offset(sizeof(SuperBlob) + sizeof(BlobIndex) * blobs.size()); + _assert(PKCS7_set_type(value_, NID_pkcs7_signed)); + _assert(PKCS7_content_new(value_, NID_pkcs7_data)); - _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(); - } + 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))); - _foreach (blob, blobs) - put(output, blob.second.data(), blob.second.size()); + auto info(PKCS7_sign_add_signer(value_, stuff, stuff, NULL, PKCS7_NOSMIMECAP)); + _assert(info != NULL); - return offset; - })); -} + PKCS7_set_detached(value_, 1); -void resign(void *idata, size_t isize, std::streambuf &output) { - resign(idata, isize, output, fun([](size_t size) -> size_t { - return 0; - }), fun([](std::streambuf &output, size_t limit, const std::string &overlap, const char *top) -> size_t { - return 0; - })); -} + ASN1_OCTET_STRING *string(ASN1_OCTET_STRING_new()); + _assert(string != NULL); + try { + _assert(ASN1_STRING_set(string, xml.data(), xml.size())); -int main(int argc, const char *argv[]) { - union { - uint16_t word; - uint8_t byte[2]; - } endian = {1}; + 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; + } - little_ = endian.byte[0]; + _assert(PKCS7_final(value_, data, PKCS7_BINARY)); + } - bool flag_r(false); - bool flag_e(false); + ~Signature() { + PKCS7_free(value_); + } - bool flag_T(false); + operator PKCS7 *() const { + return value_; + } +}; +#endif - bool flag_S(false); - bool flag_s(false); +class NullBuffer : + public std::streambuf +{ + public: + virtual std::streamsize xsputn(const char_type *data, std::streamsize size) { + return size; + } - bool flag_D(false); + virtual int_type overflow(int_type next) { + return next; + } +}; - bool flag_A(false); +class Digest { + public: + uint8_t sha1_[LDID_SHA1_DIGEST_LENGTH]; +}; + +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(hash_.sha1_), &sha1_); + LDID_SHA256_Final(reinterpret_cast(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 { + +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(ASN1_STRING_data(asn)), ASN1_STRING_length(asn)); +} + +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 +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, const std::string &requirements, const std::string &key, const Slots &slots, const Functor &percent) { + 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, 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(); + + if (!entitlements.empty()) { + special = std::max(special, CSSLOT_ENTITLEMENTS); + alloc += sizeof(struct BlobIndex); + alloc += sizeof(struct Blob); + alloc += entitlements.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, std::streambuf &output, size_t limit, const std::string &overlap, const char *top, const Functor &percent) -> size_t { + Blobs blobs; + + if (true) { + insert(blobs, CSSLOT_REQUIREMENTS, backing); + } + + if (!entitlements.empty()) { + std::stringbuf data; + put(data, entitlements.data(), entitlements.size()); + insert(blobs, CSSLOT_ENTITLEMENTS, CSMAGIC_EMBEDDED_ENTITLEMENTS, 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(0x00020200)); + directory.flags = Swap(uint32_t(0)); + directory.nSpecialSlots = Swap(special); + directory.codeLimit = Swap(uint32_t(limit)); + directory.nCodeSlots = Swap(normal); + directory.hashSize = algorithm.size_; + directory.hashType = algorithm.type_; + 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 += 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 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(&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_); + + percent(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_); + percent(double(i) / normal); + } + if (normal != 0) + algorithm(hashes + (normal - 1) * algorithm.size_, top + PageSize_ * (normal - 1), ((limit - 1) % PageSize_) + 1); + percent(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()) { + auto plist(plist_new_dict()); + _scope({ plist_free(plist); }); + + auto cdhashes(plist_new_array()); + plist_dict_set_item(plist, "cdhashes", cdhashes); + + 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 hash; + algorithm(hash, blob.data(), blob.size()); + hash.resize(20); + + plist_array_append_item(cdhashes, plist_new_data(hash.data(), hash.size())); + } + + char *xml(NULL); + uint32_t size; + plist_to_xml(plist, &xml, &size); + _scope({ free(xml); }); + + 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); + }), percent); + + return hash; +} + +#ifndef LDID_NOTOOLS +static void Unsign(void *idata, size_t isize, std::streambuf &output, const Functor &percent) { + 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, const Functor &percent) -> size_t { + return 0; + }), percent); +} + +std::string DiskFolder::Path(const std::string &path) const { + 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); +} + +#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 &code, const Functor &)> &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 &code) { + if (!edit) { + // XXX: use nullbuf + std::stringbuf 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 &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.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 &code, const Functor &)> &link) const { + Find(path, "", code, link); +} +#endif + +SubFolder::SubFolder(Folder &parent, const std::string &path) : + parent_(parent), + path_(path) +{ +} + +void SubFolder::Save(const std::string &path, bool edit, const void *flag, const Functor &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 &code) const { + return parent_.Open(path_ + path, code); +} + +void SubFolder::Find(const std::string &path, const Functor &code, const Functor &)> &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 &code, const std::string &file, const Functor &)> &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 &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 &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 &code, const Functor &)> &link) const { + for (auto &reset : resets_) + Map(path, code, reset.first, fun([&](const Functor &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 &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 &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 ldid::Functor &percent) { + percent(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; + percent(double(total) / length); + } +} + +#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, size_t length, const Functor &code) { + std::stringbuf data; + copy(buffer, data, length, ldid::fun(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 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::auto_ptr 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, const std::string &requirements, const std::string &key, const Slots &slots, size_t length, const Functor &percent) { + // XXX: this is a miserable fail + std::stringbuf temp; + put(temp, prefix, size); + copy(buffer, temp, length - size, percent); + // 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, requirements, key, slots, percent); +} + +Bundle Sign(const std::string &root, Folder &folder, const std::string &key, std::map &remote, const std::string &requirements, const Functor &alter, const Functor &progress, const Functor &percent) { + std::string executable; + std::string identifier; + + bool mac(false); + + std::string info("Info.plist"); + if (!folder.Look(info) && folder.Look("Resources/" + info)) { + mac = true; + info = "Resources/" + info; + } + + 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 && folder.Look("MacOS/" + executable)) { + executable = "MacOS/" + executable; + mac = true; + } + + 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, percent); + // 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> versions; + + auto &rules1(versions[""]); + auto &rules2(versions["2"]); + + const std::string resources(mac ? "Resources/" : ""); + + if (true) { + rules1.insert(Rule{1, NoMode, "^" + resources}); + rules1.insert(Rule{1000, OptionalMode, "^" + resources + ".*\\.lproj/"}); + rules1.insert(Rule{1100, OmitMode, "^" + resources + ".*\\.lproj/locversion.plist$"}); + rules1.insert(Rule{1010, NoMode, "^Base\\.lproj/"}); + rules1.insert(Rule{1, NoMode, "^version.plist$"}); + } + + if (true) { + rules2.insert(Rule{11, NoMode, ".*\\.dSYM($|/)"}); + rules2.insert(Rule{20, NoMode, "^" + resources}); + rules2.insert(Rule{2000, OmitMode, "^(.*/)?\\.DS_Store$"}); + rules2.insert(Rule{10, NestedMode, "^(Frameworks|SharedFrameworks|PlugIns|Plug-ins|XPCServices|Helpers|MacOS|Library/(Automator|Spotlight|LoginItems))/"}); + rules2.insert(Rule{1, NoMode, "^.*"}); + rules2.insert(Rule{1000, OptionalMode, "^" + resources + ".*\\.lproj/"}); + rules2.insert(Rule{1100, OmitMode, "^" + resources + ".*\\.lproj/locversion.plist$"}); + rules2.insert(Rule{1010, NoMode, "^Base\\.lproj/"}); + rules2.insert(Rule{20, OmitMode, "^Info\\.plist$"}); + rules2.insert(Rule{20, OmitMode, "^PkgInfo$"}); + rules2.insert(Rule{10, NestedMode, "^[^/]+$"}); + rules2.insert(Rule{20, NoMode, "^embedded\\.provisionprofile$"}); + rules2.insert(Rule{20, NoMode, "^version\\.plist$"}); + } + + std::map local; + + std::string failure(mac ? "Contents/|Versions/[^/]*/Resources/" : ""); + Expression nested("^(Frameworks/[^/]*\\.framework|PlugIns/[^/]*\\.appex(()|/[^/]*.app))/(" + failure + ")Info\\.plist$"); + std::map bundles; + + folder.Find("", fun([&](const std::string &name) { + if (!nested(name)) + return; + auto bundle(root + Split(name).dir); + bundle.resize(bundle.size() - resources.size()); + SubFolder subfolder(folder, bundle); + + bundles[nested[1]] = Sign(bundle, subfolder, key, local, "", Starts(name, "PlugIns/") ? alter : + static_cast &>(fun([&](const std::string &, const std::string &entitlements) -> std::string { return entitlements; })) + , progress, percent); + }), fun([&](const std::string &name, const Functor &read) { + })); + + std::set 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; + }); + + std::map links; + + folder.Find("", fun([&](const std::string &name) { + if (exclude(name)) + return; + + if (local.find(name) != local.end()) + return; + auto &hash(local[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, "", "", key, slots, length, percent); + })); + return; + } + + folder.Save(name, false, flag, fun([&](std::streambuf &save) { + HashProxy proxy(hash, save); + put(proxy, header.bytes, size); + copy(data, proxy, length - size, percent); + })); + })); + }), fun([&](const std::string &name, const Functor &read) { + if (exclude(name)) + return; + + 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) + 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(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(hash.second.sha1_), sizeof(hash.second.sha1_))); + if (!old) + plist_dict_set_item(entry, "hash2", plist_new_data(reinterpret_cast(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; + } + + for (const auto &link : 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(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 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[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 = 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.at(info); + slots[3] = local.at(signature); + bundle.hash = Sign(NULL, 0, buffer, local[executable], save, identifier, entitlements, requirements, key, slots, length, percent); + })); + })); + + for (const auto &entry : local) + remote[root + entry.first] = entry.second; + + return bundle; +} + +Bundle Sign(const std::string &root, Folder &folder, const std::string &key, const std::string &requirements, const Functor &alter, const Functor &progress, const Functor &percent) { + std::map local; + return Sign(root, folder, key, local, requirements, alter, progress, percent); +} +#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]; + } endian = {1}; + + little_ = endian.byte[0]; + + bool flag_r(false); + bool flag_e(false); + bool flag_q(false); + +#ifndef LDID_NOFLAGT + bool flag_T(false); +#endif + + bool flag_S(false); + bool flag_s(false); + + bool flag_D(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 requirements; + Map key; + ldid::Slots slots; std::vector files; @@ -1318,14 +2655,40 @@ int main(int argc, const char *argv[]) { 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 *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 'Q': { + const char *xml = argv[argi] + 2; + requirements.open(xml, O_RDONLY, PROT_READ, MAP_PRIVATE); + } 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; @@ -1340,11 +2703,13 @@ int main(int argc, const char *argv[]) { 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') { @@ -1353,6 +2718,12 @@ int main(int argc, const char *argv[]) { } 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] == '-') @@ -1363,6 +2734,11 @@ int main(int argc, const char *argv[]) { _assert(arge == argv[argi] + strlen(argv[argi])); } } break; +#endif + + case 'u': { + flag_u = true; + } break; case 'I': { flag_I = argv[argi] + 2; @@ -1373,7 +2749,8 @@ int main(int argc, const char *argv[]) { break; } - _assert(!flag_S || !flag_r); + _assert(flag_S || key.empty()); + _assert(flag_S || flag_I == NULL); if (files.empty()) usage: { exit(0); @@ -1381,33 +2758,47 @@ int main(int argc, const char *argv[]) { 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); + path += "/" + Sign("", folder, key, requirements, ldid::fun([&](const std::string &, const std::string &) -> std::string { return entitlements; }) + , ldid::fun([&](const std::string &) {}), ldid::fun(dummy) + ).path; +#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) - resign(input.data(), input.size(), output); + ldid::Unsign(input.data(), input.size(), output, ldid::fun(dummy)); else { - resign(input.data(), input.size(), output, name, entitlements); + std::string identifier(flag_I ?: split.base.c_str()); + ldid::Sign(input.data(), input.size(), output, identifier, entitlements, requirements, key, slots, ldid::fun(dummy)); } + + 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()) { @@ -1432,6 +2823,19 @@ int main(int argc, const char *argv[]) { signature = reinterpret_cast(load_command); else if (cmd == LC_ENCRYPTION_INFO || cmd == LC_ENCRYPTION_INFO_64) encryption = reinterpret_cast(load_command); + else if (cmd == LC_LOAD_DYLIB) { + volatile struct dylib_command *dylib_command(reinterpret_cast(load_command)); + const char *name(reinterpret_cast(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(load_command)); @@ -1448,6 +2852,7 @@ int main(int argc, const char *argv[]) { dylib_command->dylib.timestamp = mach_header.Swap(timed); } } +#endif } if (flag_D) { @@ -1468,7 +2873,24 @@ int main(int argc, const char *argv[]) { if (Swap(super->index[index].type) == CSSLOT_ENTITLEMENTS) { uint32_t begin = Swap(super->index[index].offset); struct Blob *entitlements = reinterpret_cast(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(mach_header.GetBase()); + uint8_t *blob = top + data; + struct SuperBlob *super = reinterpret_cast(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(blob + begin); + fwrite(requirement, 1, Swap(requirement->length), stdout); } } @@ -1484,30 +2906,20 @@ int main(int argc, const char *argv[]) { 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(blob + begin); + struct CodeDirectory *directory = reinterpret_cast(blob + begin + sizeof(Blob)); - uint8_t (*hashes)[SHA_DIGEST_LENGTH] = reinterpret_cast(blob + begin + Swap(directory->hashOffset)); + uint8_t (*hashes)[LDID_SHA1_DIGEST_LENGTH] = reinterpret_cast(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 (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; @@ -1516,3 +2928,4 @@ int main(int argc, const char *argv[]) { return filee; } +#endif