#define LC_ENCRYPTION_INFO uint32_t(0x21)
#define LC_DYLD_INFO uint32_t(0x22)
#define LC_DYLD_INFO_ONLY uint32_t(0x22 | LC_REQ_DYLD)
+#define LC_ENCRYPTION_INFO_64 uint32_t(0x2c)
struct dylib {
uint32_t name;
_syscall(close(file_));
}
- void open(const char *path, bool ro) {
+ void open(const char *path, int flags) {
_assert(file_ == -1);
- _syscall(file_ = ::open(path, ro ? O_RDONLY : O_RDWR));
+ _syscall(file_ = ::open(path, flags));
}
int file() const {
{
}
- Map(const char *path, bool ro) {
- open(path, ro);
+ Map(const char *path, int oflag, int pflag, int mflag) :
+ Map()
+ {
+ open(path, oflag, pflag, mflag);
+ }
+
+ Map(const char *path, bool edit) :
+ Map()
+ {
+ open(path, edit);
}
~Map() {
clear();
}
- void open(const char *path, bool ro) {
+ void open(const char *path, int oflag, int pflag, int mflag) {
clear();
- file_.open(path, ro);
+ file_.open(path, oflag);
int file(file_.file());
struct stat stat;
_syscall(fstat(file, &stat));
size_ = stat.st_size;
- _syscall(data_ = mmap(NULL, size_, ro ? PROT_READ : PROT_READ | PROT_WRITE, ro ? MAP_PRIVATE : MAP_SHARED, file, 0));
+ _syscall(data_ = mmap(NULL, size_, pflag, mflag, file, 0));
+ }
+
+ void open(const char *path, bool edit) {
+ if (edit)
+ open(path, O_RDWR, PROT_READ | PROT_WRITE, MAP_SHARED);
+ else
+ open(path, O_RDONLY, PROT_READ, MAP_PRIVATE);
}
void *data() const {
little_ = endian.byte[0];
- bool flag_R(false);
bool flag_r(false);
-
- bool flag_t(false);
- bool flag_p(false);
- bool flag_u(false);
bool flag_e(false);
bool flag_T(false);
bool flag_S(false);
bool flag_s(false);
- bool flag_O(false);
-
bool flag_D(false);
- bool flag_d(false);
bool flag_A(false);
bool flag_a(false);
const void *xmld(NULL);
size_t xmls(0);
- uintptr_t noffset(_not(uintptr_t));
- uintptr_t woffset(_not(uintptr_t));
-
std::vector<std::string> files;
if (argc == 1) {
if (argv[argi][0] != '-')
files.push_back(argv[argi]);
else switch (argv[argi][1]) {
- case 'R': flag_R = true; break;
case 'r': flag_r = true; break;
-
- case 't': flag_t = true; break;
- case 'u': flag_u = true; break;
- case 'p': flag_p = true; break;
case 'e': flag_e = true; break;
- case 'O': flag_O = true; break;
case 'D': flag_D = true; break;
- case 'd': flag_d = true; break;
case 'a': flag_a = true; break;
flag_S = true;
if (argv[argi][2] != '\0') {
const char *xml = argv[argi] + 2;
- xmlm.open(xml, true);
+ xmlm.open(xml, O_RDONLY, PROT_READ, MAP_PRIVATE);
xmld = xmlm.data();
xmls = xmlm.size();
}
flag_I = argv[argi] + 2;
} break;
- case 'n': {
- char *arge;
- noffset = strtoul(argv[argi] + 2, &arge, 0);
- _assert(arge == argv[argi] + strlen(argv[argi]));
- } break;
-
- case 'w': {
- char *arge;
- woffset = strtoul(argv[argi] + 2, &arge, 0);
- _assert(arge == argv[argi] + strlen(argv[argi]));
- } break;
-
default:
goto usage;
break;
const char *name(flag_I ?: base);
char *temp(NULL);
- if (flag_r) {
- uint32_t clip(0); {
- Map mapping(path, false);
- FatHeader fat_header(mapping.data(), mapping.size());
- _foreach (mach_header, fat_header.GetMachHeaders()) {
- if (flag_A) {
- if (mach_header.GetCPUType() != flag_CPUType)
- continue;
- if (mach_header.GetCPUSubtype() != flag_CPUSubtype)
- continue;
- }
-
- mach_header->flags = mach_header.Swap(mach_header.Swap(mach_header->flags) | MH_DYLDLINK);
-
- uint32_t size(_not(uint32_t)); {
- _foreach (load_command, mach_header.GetLoadCommands()) {
- switch (mach_header.Swap(load_command->cmd)) {
- case LC_CODE_SIGNATURE: {
- struct linkedit_data_command *signature = reinterpret_cast<struct linkedit_data_command *>(load_command);
- memset(reinterpret_cast<uint8_t *>(mach_header.GetBase()) + mach_header.Swap(signature->dataoff), 0, mach_header.Swap(signature->datasize));
- memset(signature, 0, sizeof(struct linkedit_data_command));
-
- mach_header->ncmds = mach_header.Swap(mach_header.Swap(mach_header->ncmds) - 1);
- mach_header->sizeofcmds = mach_header.Swap(uint32_t(mach_header.Swap(mach_header->sizeofcmds) - sizeof(struct linkedit_data_command)));
- } break;
-
- case LC_SYMTAB: {
- struct symtab_command *symtab = reinterpret_cast<struct symtab_command *>(load_command);
- size = mach_header.Swap(symtab->stroff) + mach_header.Swap(symtab->strsize);
- } break;
- }
- }
- }
-
- _assert(size != _not(uint32_t));
-
- _foreach (segment, mach_header.GetSegments("__LINKEDIT")) {
- segment->filesize -= mach_header.GetSize() - size;
-
- if (fat_arch *fat_arch = mach_header.GetFatArch()) {
- fat_arch->size = fat_header.Swap(size);
- clip = std::max(clip, fat_header.Swap(fat_arch->offset) + size);
- } else
- clip = std::max(clip, size);
- }
-
- _foreach (segment, mach_header.GetSegments64("__LINKEDIT")) {
- segment->filesize -= mach_header.GetSize() - size;
-
- if (fat_arch *fat_arch = mach_header.GetFatArch()) {
- fat_arch->size = fat_header.Swap(size);
- clip = std::max(clip, fat_header.Swap(fat_arch->offset) + size);
- } else
- clip = std::max(clip, size);
- }
- }
- }
-
- if (clip != 0)
- _syscall(truncate(path, clip));
- }
-
- if (flag_S) {
- Map input(path, true);
+ if (flag_S || flag_r) {
+ Map input(path, O_RDONLY, PROT_READ | PROT_WRITE, MAP_PRIVATE);
FatHeader source(input.data(), input.size());
size_t offset(0);
-
if (source.IsFat())
offset += sizeof(fat_header) + sizeof(fat_arch) * source.Swap(source->nfat_arch);
- std::vector<CodesignAllocation> allocations; {
- _foreach (mach_header, source.GetMachHeaders()) {
- if (flag_A) {
- if (mach_header.GetCPUType() != flag_CPUType)
- continue;
- if (mach_header.GetCPUSubtype() != flag_CPUSubtype)
- continue;
- }
+ std::vector<CodesignAllocation> allocations;
+ _foreach (mach_header, source.GetMachHeaders()) {
+ struct linkedit_data_command *signature(NULL);
+ struct symtab_command *symtab(NULL);
- size_t size(_not(size_t)); {
- _foreach (load_command, mach_header.GetLoadCommands()) {
- uint32_t cmd(mach_header.Swap(load_command->cmd));
- if (cmd == LC_CODE_SIGNATURE) {
- struct linkedit_data_command *signature = reinterpret_cast<struct linkedit_data_command *>(load_command);
- size = mach_header.Swap(signature->dataoff);
- _assert(size < mach_header.GetSize());
- break;
- }
- }
+ _foreach (load_command, mach_header.GetLoadCommands()) {
+ uint32_t cmd(mach_header.Swap(load_command->cmd));
+ if (false);
+ else if (cmd == LC_CODE_SIGNATURE)
+ signature = reinterpret_cast<struct linkedit_data_command *>(load_command);
+ else if (cmd == LC_SYMTAB)
+ symtab = reinterpret_cast<struct symtab_command *>(load_command);
+ }
- if (size == _not(size_t))
- size = mach_header.GetSize();
- }
+ size_t size;
+ if (signature == NULL)
+ size = mach_header.GetSize();
+ else {
+ size = mach_header.Swap(signature->dataoff);
+ _assert(size <= mach_header.GetSize());
+ }
+
+ if (symtab != NULL) {
+ auto end(mach_header.Swap(symtab->stroff) + mach_header.Swap(symtab->strsize));
+ _assert(end <= size);
+ _assert(end >= size - 0x10);
+ size = end;
+ }
- size_t alloc(0);
+ size_t alloc(0);
+ if (!flag_r) {
alloc += sizeof(struct SuperBlob);
uint32_t special(0);
size_t normal((size + 0x1000 - 1) / 0x1000);
alloc = Align(alloc + (special + normal) * 0x14, 16);
+ }
- auto *fat_arch(mach_header.GetFatArch());
- uint32_t align(fat_arch == NULL ? 0 : source.Swap(fat_arch->align));
- offset = Align(offset, 1 << align);
+ auto *fat_arch(mach_header.GetFatArch());
+ uint32_t align(fat_arch == NULL ? 0 : source.Swap(fat_arch->align));
+ offset = Align(offset, 1 << align);
- allocations.push_back(CodesignAllocation(mach_header, offset, size, alloc, align));
- offset += size + alloc;
- offset = Align(offset, 16);
- }
+ allocations.push_back(CodesignAllocation(mach_header, offset, size, alloc, align));
+ offset += size + alloc;
+ offset = Align(offset, 16);
}
asprintf(&temp, "%s.%s.cs", dir.c_str(), base);
fclose(fopen(temp, "w+"));
_syscall(truncate(temp, offset));
- Map output(temp, false);
+ Map output(temp, O_RDWR, PROT_READ | PROT_WRITE, MAP_SHARED);
_assert(output.size() == offset);
void *file(output.data());
memset(file, 0, offset);
auto &source(allocation.mach_header_);
uint32_t align(allocation.size_);
- align = Align(align, 0x10);
+ if (allocation.alloc_ != 0)
+ align = Align(align, 0x10);
if (fat_arch != NULL) {
fat_arch->cputype = Swap(source->cputype);
break;
}
- if (signature == NULL) {
- mach_header->ncmds = mach_header.Swap(mach_header.Swap(mach_header->ncmds) + 1);
- signature = reinterpret_cast<struct linkedit_data_command *>(reinterpret_cast<uint8_t *>(mach_header.GetLoadCommand()) + mach_header.Swap(mach_header->sizeofcmds));
- mach_header->sizeofcmds = mach_header.Swap(mach_header.Swap(mach_header->sizeofcmds) + uint32_t(sizeof(*signature)));
- signature->cmd = mach_header.Swap(LC_CODE_SIGNATURE);
- signature->cmdsize = mach_header.Swap(uint32_t(sizeof(*signature)));
+ if (flag_r && signature != NULL) {
+ auto before(reinterpret_cast<uint8_t *>(mach_header.GetLoadCommand()));
+ auto after(reinterpret_cast<uint8_t *>(signature));
+ auto next(mach_header.Swap(signature->cmdsize));
+ auto total(mach_header.Swap(mach_header->sizeofcmds));
+ memmove(signature, after + next, before + total - after - next);
+ memset(before + total - next, 0, next);
+ mach_header->ncmds = mach_header.Swap(mach_header.Swap(mach_header->ncmds) - 1);
+ mach_header->sizeofcmds = mach_header.Swap(total - next);
+ signature = NULL;
}
- signature->dataoff = mach_header.Swap(align);
- signature->datasize = mach_header.Swap(allocation.alloc_);
+ if (flag_S) {
+ if (signature == NULL) {
+ signature = reinterpret_cast<struct linkedit_data_command *>(reinterpret_cast<uint8_t *>(mach_header.GetLoadCommand()) + mach_header.Swap(mach_header->sizeofcmds));
+ signature->cmd = mach_header.Swap(LC_CODE_SIGNATURE);
+ signature->cmdsize = mach_header.Swap(uint32_t(sizeof(*signature)));
+ mach_header->ncmds = mach_header.Swap(mach_header.Swap(mach_header->ncmds) + 1);
+ mach_header->sizeofcmds = mach_header.Swap(mach_header.Swap(mach_header->sizeofcmds) + uint32_t(sizeof(*signature)));
+ }
+
+ signature->dataoff = mach_header.Swap(align);
+ signature->datasize = mach_header.Swap(allocation.alloc_);
+ }
_foreach (segment, mach_header.GetSegments("__LINKEDIT")) {
size_t size(mach_header.Swap(align + allocation.alloc_ - mach_header.Swap(segment->fileoff)));
}
}
- if (flag_p)
- printf("path%zu='%s'\n", filei, file.c_str());
-
- Map mapping(temp == NULL ? path : temp, !(flag_R || flag_T || flag_s || flag_S || flag_O || flag_D));
+ Map mapping(temp ?: path, flag_T || flag_s || flag_S);
FatHeader fat_header(mapping.data(), mapping.size());
_foreach (mach_header, fat_header.GetMachHeaders()) {
if (flag_a)
printf("cpu=0x%x:0x%x\n", mach_header.GetCPUType(), mach_header.GetCPUSubtype());
- if (flag_d) {
- if (struct fat_arch *fat_arch = mach_header.GetFatArch())
- printf("offset=0x%x\n", Swap(fat_arch->offset));
- else
- printf("offset=0x0\n");
- }
-
- if (woffset != _not(uintptr_t)) {
- Pointer<uint32_t> wvalue(mach_header.GetPointer<uint32_t>(woffset));
- if (wvalue == NULL)
- printf("(null) %p\n", reinterpret_cast<void *>(woffset));
- else
- printf("0x%.08x\n", *wvalue);
- }
-
- if (noffset != _not(uintptr_t))
- printf("%s\n", &*mach_header.GetPointer<char>(noffset));
-
- if (flag_d)
- _foreach(segment, mach_header.GetSegments("__TEXT")) {
- printf("vmaddr=0x%x\n", mach_header.Swap(segment->vmaddr));
- printf("fileoff=0x%x\n", mach_header.Swap(segment->fileoff));
- }
-
- if (flag_O) {
- _foreach(section, mach_header.GetSections("__TEXT", "__text"))
- section->addr = mach_header.Swap(0);
- }
-
_foreach (load_command, mach_header.GetLoadCommands()) {
uint32_t cmd(mach_header.Swap(load_command->cmd));
- if (flag_R && cmd == LC_REEXPORT_DYLIB)
- load_command->cmd = mach_header.Swap(LC_LOAD_DYLIB);
+ if (false);
else if (cmd == LC_CODE_SIGNATURE)
signature = reinterpret_cast<struct linkedit_data_command *>(load_command);
- else if (cmd == LC_ENCRYPTION_INFO)
+ else if (cmd == LC_ENCRYPTION_INFO || cmd == LC_ENCRYPTION_INFO_64)
encryption = reinterpret_cast<struct encryption_info_command *>(load_command);
- else if (cmd == LC_UUID) {
- volatile struct uuid_command *uuid_command(reinterpret_cast<struct uuid_command *>(load_command));
-
- if (flag_u) {
- printf("uuid%zu=%.2x%.2x%.2x%.2x-%.2x%.2x-%.2x%.2x-%.2x%.2x-%.2x%.2x%.2x%.2x%.2x%.2x\n", filei,
- uuid_command->uuid[ 0], uuid_command->uuid[ 1], uuid_command->uuid[ 2], uuid_command->uuid[ 3],
- uuid_command->uuid[ 4], uuid_command->uuid[ 5], uuid_command->uuid[ 6], uuid_command->uuid[ 7],
- uuid_command->uuid[ 8], uuid_command->uuid[ 9], uuid_command->uuid[10], uuid_command->uuid[11],
- uuid_command->uuid[12], uuid_command->uuid[13], uuid_command->uuid[14], uuid_command->uuid[15]
- );
- }
- } else if (cmd == LC_ID_DYLIB) {
+ else if (cmd == LC_ID_DYLIB) {
volatile struct dylib_command *dylib_command(reinterpret_cast<struct dylib_command *>(load_command));
- if (flag_t)
- printf("time%zu=0x%.8x\n", filei, mach_header.Swap(dylib_command->dylib.timestamp));
-
if (flag_T) {
uint32_t timed;
}
}
- if (flag_d) {
- _assert(encryption != NULL);
-
- printf("cryptoff=0x%x\n", mach_header.Swap(encryption->cryptoff));
- printf("cryptsize=0x%x\n", mach_header.Swap(encryption->cryptsize));
- printf("cryptid=0x%x\n", mach_header.Swap(encryption->cryptid));
- }
-
if (flag_D) {
_assert(encryption != NULL);
encryption->cryptid = mach_header.Swap(0);
}
}
- if (flag_S) {
- uint8_t *top = reinterpret_cast<uint8_t *>(fat_header.GetBase());
- size_t size = fat_header.GetSize();
-
- char *copy;
- asprintf(©, "%s.%s.cp", dir.c_str(), base);
- FILE *file = fopen(copy, "w+");
- size_t writ = fwrite(top, 1, size, file);
- _assert(writ == size);
- fclose(file);
-
- _syscall(unlink(temp));
- free(temp);
- temp = copy;
- }
-
if (temp != NULL) {
struct stat info;
_syscall(stat(path, &info));
projects / ldid.git / blobdiff