diff options
author | Jay Freeman <saurik@saurik.com> | 2008-06-14 09:29:39 +0000 |
---|---|---|
committer | Jay Freeman <saurik@saurik.com> | 2008-06-14 09:29:39 +0000 |
commit | d72422f747c36feb6235ff8ff19c005688b2db16 (patch) | |
tree | c1008c8ac0d051a510b1fbb1db4a8923f9a997fc | |
parent | 859e68a34877b93e119725a3bcf2cc262d1f612f (diff) |
Added requirement slots and armv6 support to ldid/codesign.
git-svn-id: http://svn.telesphoreo.org/trunk@310 514c082c-b64e-11dc-b46d-3d985efe055d
-rw-r--r-- | util/ldid.cpp | 48 |
1 files changed, 41 insertions, 7 deletions
diff --git a/util/ldid.cpp b/util/ldid.cpp index 7c225e1e9..d38e6b3f3 100644 --- a/util/ldid.cpp +++ b/util/ldid.cpp @@ -217,6 +217,10 @@ class Framework { ); } + struct mach_header *operator ->() const { + return mach_header_; + } + void *GetBase() { return base_; } @@ -241,6 +245,7 @@ class Framework { #define CSMAGIC_CODEDIRECTORY 0xfade0c02 #define CSMAGIC_EMBEDDED_SIGNATURE 0xfade0cc0 #define CSSLOT_CODEDIRECTORY 0 +#define CSSLOT_REQUIREMENTS 2 struct BlobIndex { uint32_t type; @@ -346,18 +351,41 @@ int main(int argc, const char *argv[]) { if (allocate == NULL) allocate = "codesign_allocate"; - size_t size; { + size_t size = _not(size_t); + const char *arch; { Framework framework(path); - size = framework.GetSize(); + _foreach (load_command, framework.GetLoadCommands()) { + uint32_t cmd(framework.Swap((*load_command)->cmd)); + if (cmd == LC_CODE_SIGNATURE) { + struct linkedit_data_command *signature = reinterpret_cast<struct linkedit_data_command *>(*load_command); + size = framework.Swap(signature->dataoff); + _assert(size < framework.GetSize()); + break; + } + } + + if (size == _not(size_t)) + size = framework.GetSize(); + + switch (framework->cputype) { + case 12: switch (framework->cpusubtype) { + case 0: arch = "arm"; break; + case 6: arch = "armv6"; break; + default: arch = NULL; break; + } break; + + default: arch = NULL; break; + } } + _assert(arch != NULL); + pid_t pid = fork(); _syscall(pid); if (pid == 0) { char *ssize; - asprintf(&ssize, "%u", (sizeof(struct SuperBlob) + sizeof(struct BlobIndex) + sizeof(struct CodeDirectory) + strlen(base) + 1 + (size + 0x1000 - 1) / 0x1000 * 0x14 + 15) / 16 * 16); - printf("%s\n", ssize); - execlp(allocate, allocate, "-i", path, "-a", "arm", ssize, "-o", temp, NULL); + asprintf(&ssize, "%u", (sizeof(struct SuperBlob) + 2 * sizeof(struct BlobIndex) + sizeof(struct CodeDirectory) + strlen(base) + 1 + (size + 0x1000 - 1) / 0x1000 * 0x14 + 0xc + 15) / 16 * 16); + execlp(allocate, allocate, "-i", path, "-a", arch, ssize, "-o", temp, NULL); _assert(false); } @@ -423,7 +451,7 @@ int main(int argc, const char *argv[]) { struct SuperBlob *super = reinterpret_cast<struct SuperBlob *>(blob); super->magic = Swap(CSMAGIC_EMBEDDED_SIGNATURE); - uint32_t count = 1; + uint32_t count = 2; uint32_t offset = sizeof(struct SuperBlob) + count * sizeof(struct BlobIndex); super->index[0].type = Swap(CSSLOT_CODEDIRECTORY); @@ -464,10 +492,16 @@ int main(int argc, const char *argv[]) { offset += sizeof(*hashes) * (special + pages); directory->length = Swap(offset - begin); + super->index[1].type = Swap(CSSLOT_REQUIREMENTS); + super->index[1].offset = Swap(offset); + + memcpy(blob + offset, "\xfa\xde\x0c\x01\x00\x00\x00\x0c\x00\x00\x00\x00", 0xc); + offset += 0xc; + super->count = Swap(count); super->length = Swap(offset); - _assert(offset < size); + _assert(offset <= size); memset(blob + offset, 0, size - offset); } |