namespace ldid {
+std::string Analyze(const void *data, size_t size) {
+ std::string entitlements;
+
+ FatHeader fat_header(const_cast<void *>(data), size);
+ _foreach (mach_header, fat_header.GetMachHeaders())
+ _foreach (load_command, mach_header.GetLoadCommands())
+ if (mach_header.Swap(load_command->cmd) == LC_CODE_SIGNATURE) {
+ auto signature(reinterpret_cast<struct linkedit_data_command *>(load_command));
+ auto offset(mach_header.Swap(signature->dataoff));
+ auto pointer(reinterpret_cast<uint8_t *>(mach_header.GetBase()) + offset);
+ auto super(reinterpret_cast<struct SuperBlob *>(pointer));
+
+ for (size_t index(0); index != Swap(super->count); ++index)
+ if (Swap(super->index[index].type) == CSSLOT_ENTITLEMENTS) {
+ auto begin(Swap(super->index[index].offset));
+ auto blob(reinterpret_cast<struct Blob *>(pointer + begin));
+ auto writ(Swap(blob->length) - sizeof(*blob));
+
+ if (entitlements.empty())
+ entitlements.assign(reinterpret_cast<char *>(blob + 1), writ);
+ else
+ _assert(entitlements.compare(0, entitlements.size(), reinterpret_cast<char *>(blob + 1), writ) == 0);
+ }
+ }
+
+ return entitlements;
+}
+
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 saved(save(mach_header, output, allocation.limit_, overlap, top));
if (allocation.alloc_ > saved)
pad(output, allocation.alloc_ - saved);
+ else
+ _assert(allocation.alloc_ == saved);
position += allocation.alloc_;
}
}
}
};
+class Digest {
+ public:
+ uint8_t sha1_[LDID_SHA1_DIGEST_LENGTH];
+};
+
class Hash {
public:
char sha1_[LDID_SHA1_DIGEST_LENGTH];
}
#endif
+ // 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));
if (!key.empty()) {
alloc += sizeof(struct BlobIndex);
alloc += sizeof(struct Blob);
- // XXX: this is just a "sufficiently large number"
- alloc += 0x3000;
+ alloc += certificate;
}
_foreach (slot, slots)
put(data, &directory, sizeof(directory));
put(data, identifier.c_str(), identifier.size() + 1);
- put(data, team.c_str(), team.size() + 1);
+ if (!team.empty())
+ put(data, team.c_str(), team.size() + 1);
- uint8_t storage[special + normal][LDID_SHA1_DIGEST_LENGTH];
- uint8_t (*hashes)[LDID_SHA1_DIGEST_LENGTH] = storage + special;
+ std::vector<Digest> storage(special + normal);
+ auto *hashes(&storage[special]);
- memset(storage, 0, sizeof(*storage) * special);
+ memset(storage.data(), 0, sizeof(Digest) * special);
_foreach (blob, blobs) {
auto local(reinterpret_cast<const Blob *>(&blob.second[0]));
- sha1((uint8_t *) (hashes - blob.first), local, Swap(local->length));
+ sha1((hashes - blob.first)->sha1_, local, Swap(local->length));
}
_foreach (slot, posts) {
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_);
+ sha1(hashes[i].sha1_, (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);
+ sha1(hashes[normal - 1].sha1_, top + PageSize_ * (normal - 1), ((limit - 1) % PageSize_) + 1);
- put(data, storage, sizeof(storage));
+ put(data, storage.data(), sizeof(Digest) * storage.size());
const auto &save(insert(blobs, CSSLOT_CODEDIRECTORY, CSMAGIC_CODEDIRECTORY, data));
sha1(hash, save.data(), save.size());
std::string value(result);
put(data, value.data(), value.size());
- insert(blobs, CSSLOT_SIGNATURESLOT, CSMAGIC_BLOBWRAPPER, data);
+ const auto &save(insert(blobs, CSSLOT_SIGNATURESLOT, CSMAGIC_BLOBWRAPPER, data));
+ _assert(save.size() <= certificate);
}
#endif
}));
}
-std::string DiskFolder::Path(const std::string &path) {
+std::string DiskFolder::Path(const std::string &path) const {
return path_ + "/" + path;
}
}
#endif
-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, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) {
+void DiskFolder::Find(const std::string &root, const std::string &base, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const {
std::string path(Path(root) + base);
DIR *dir(opendir(path.c_str()));
if (directory)
Find(root, base + name + "/", code, link);
else
- code(base + name, fun([&](const Functor<void (std::streambuf &, std::streambuf &)> &code) {
- std::string access(root + base + name);
- Open(access, fun([&](std::streambuf &data, const void *flag) {
- auto from(path + name);
- std::filebuf save;
- commit_[from] = Temporary(save, from);
- code(data, save);
- }));
- }));
+ code(base + name);
}
}
-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);
+void DiskFolder::Save(const std::string &path, bool edit, const void *flag, const Functor<void (std::streambuf &)> &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) {
+bool DiskFolder::Look(const std::string &path) const {
return _syscall(access(Path(path).c_str(), R_OK), ENOENT) == 0;
}
-void DiskFolder::Open(const std::string &path, const Functor<void (std::streambuf &, const void *)> &code) {
+void DiskFolder::Open(const std::string &path, const Functor<void (std::streambuf &, const void *)> &code) const {
std::filebuf data;
auto result(data.open(Path(path).c_str(), std::ios::binary | std::ios::in));
_assert_(result == &data, "DiskFolder::Open(%s)", path.c_str());
code(data, NULL);
}
-void DiskFolder::Find(const std::string &path, const Functor<void (const std::string &, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) {
+void DiskFolder::Find(const std::string &path, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const {
Find(path, "", code, link);
}
#endif
{
}
-void SubFolder::Save(const std::string &path, const void *flag, const Functor<void (std::streambuf &)> &code) {
- return parent_.Save(path_ + path, flag, code);
+void SubFolder::Save(const std::string &path, bool edit, const void *flag, const Functor<void (std::streambuf &)> &code) {
+ return parent_.Save(path_ + path, edit, flag, code);
}
-bool SubFolder::Look(const std::string &path) {
+bool SubFolder::Look(const std::string &path) const {
return parent_.Look(path_ + path);
}
-void SubFolder::Open(const std::string &path, const Functor<void (std::streambuf &, const void *)> &code) {
+void SubFolder::Open(const std::string &path, const Functor<void (std::streambuf &, const void *)> &code) const {
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, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) {
+void SubFolder::Find(const std::string &path, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const {
return parent_.Find(path_ + path, code, link);
}
-std::string UnionFolder::Map(const std::string &path) {
+std::string UnionFolder::Map(const std::string &path) const {
auto remap(remaps_.find(path));
if (remap == remaps_.end())
return path;
return remap->second;
}
-void UnionFolder::Map(const std::string &path, const Functor<void (const std::string &, 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) {
+void UnionFolder::Map(const std::string &path, const Functor<void (const std::string &)> &code, const std::string &file, const Functor<void (const Functor<void (std::streambuf &, const void *)> &)> &save) const {
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);
- }));
- }));
- }));
+ code(file.substr(path.size()));
}
UnionFolder::UnionFolder(Folder &parent) :
{
}
-void UnionFolder::Save(const std::string &path, const void *flag, const Functor<void (std::streambuf &)> &code) {
- return parent_.Save(Map(path), flag, code);
+void UnionFolder::Save(const std::string &path, bool edit, const void *flag, const Functor<void (std::streambuf &)> &code) {
+ return parent_.Save(Map(path), edit, flag, code);
}
-bool UnionFolder::Look(const std::string &path) {
+bool UnionFolder::Look(const std::string &path) const {
auto file(resets_.find(path));
if (file != resets_.end())
return true;
return parent_.Look(Map(path));
}
-void UnionFolder::Open(const std::string &path, const Functor<void (std::streambuf &, const void *)> &code) {
+void UnionFolder::Open(const std::string &path, const Functor<void (std::streambuf &, const void *)> &code) const {
auto file(resets_.find(path));
if (file == resets_.end())
return parent_.Open(Map(path), code);
code(data, entry.second);
}
-void UnionFolder::Find(const std::string &path, const Functor<void (const std::string &, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) {
- 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);
- }), fun([&](const std::string &name, const Functor<std::string ()> &read) {
- if (deletes_.find(path + name) == deletes_.end())
- link(name, read);
- }));
-
+void UnionFolder::Find(const std::string &path, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const {
for (auto &reset : resets_)
Map(path, code, reset.first, fun([&](const Functor<void (std::streambuf &, const void *)> &code) {
auto &entry(reset.second);
code(data, flag);
}));
}));
+
+ parent_.Find(path, fun([&](const std::string &name) {
+ if (deletes_.find(path + name) == deletes_.end())
+ code(name);
+ }), fun([&](const std::string &name, const Functor<std::string ()> &read) {
+ if (deletes_.find(path + name) == deletes_.end())
+ link(name, read);
+ }));
}
#ifndef LDID_NOTOOLS
// XXX: this is a miserable fail
std::stringbuf temp;
put(temp, prefix, size);
- copy(buffer, temp);
+ size += copy(buffer, temp);
+ // XXX: this is a stupid hack
+ pad(temp, 0x10 - (size & 0xf));
auto data(temp.str());
HashProxy proxy(hash, save);
return Sign(data.data(), data.size(), proxy, identifier, entitlements, requirement, key, slots);
}
-Bundle Sign(const std::string &root, Folder &folder, const std::string &key, std::map<std::string, Hash> &remote, const std::string &entitlements, const std::string &requirement) {
+Bundle Sign(const std::string &root, Folder &folder, const std::string &key, std::map<std::string, Hash> &remote, const std::string &requirement, const Functor<std::string (const std::string &, const std::string &)> &alter) {
std::string executable;
std::string identifier;
mac = true;
}
+ std::string entitlements;
+ folder.Open(executable, fun([&](std::streambuf &buffer, const void *flag) {
+ // XXX: this is a miserable fail
+ std::stringbuf temp;
+ auto size(copy(buffer, temp));
+ // XXX: this is a stupid hack
+ pad(temp, 0x10 - (size & 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");
Expression nested("^(Frameworks/[^/]*\\.framework|PlugIns/[^/]*\\.appex(()|/[^/]*.app))/(" + failure + ")Info\\.plist$");
std::map<std::string, Bundle> bundles;
- folder.Find("", fun([&](const std::string &name, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &code) {
+ 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, "", "");
+
+ bundles[nested[1]] = Sign(bundle, subfolder, key, local, "", Starts(name, "PlugIns/") ? alter :
+ static_cast<const Functor<std::string (const std::string &, const std::string &)> &>(fun([&](const std::string &, const std::string &entitlements) -> std::string { return entitlements; })));
}), fun([&](const std::string &name, const Functor<std::string ()> &read) {
}));
std::map<std::string, std::string> links;
- folder.Find("", fun([&](const std::string &name, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &code) {
+ folder.Find("", fun([&](const std::string &name) {
if (exclude(name))
return;
return;
auto &hash(local[name]);
- code(fun([&](std::streambuf &data, std::streambuf &save) {
+ folder.Open(name, fun([&](std::streambuf &data, const void *flag) {
union {
struct {
uint32_t magic;
case FAT_CIGAM:
case MH_MAGIC: case MH_MAGIC_64:
case MH_CIGAM: case MH_CIGAM_64:
- Slots slots;
- Sign(header.bytes, size, data, hash, save, identifier, "", "", key, slots);
+ folder.Save(name, true, flag, fun([&](std::streambuf &save) {
+ Slots slots;
+ Sign(header.bytes, size, data, hash, save, identifier, "", "", key, slots);
+ }));
return;
}
- HashProxy proxy(hash, save);
- put(proxy, header.bytes, size);
- copy(data, proxy);
+ folder.Save(name, false, flag, fun([&](std::streambuf &save) {
+ HashProxy proxy(hash, save);
+ put(proxy, header.bytes, size);
+ copy(data, proxy);
+ }));
}));
}), fun([&](const std::string &name, const Functor<std::string ()> &read) {
if (exclude(name))
}
}
- folder.Save(signature, NULL, fun([&](std::streambuf &save) {
+ folder.Save(signature, true, NULL, fun([&](std::streambuf &save) {
HashProxy proxy(local[signature], save);
char *xml(NULL);
uint32_t size;
bundle.path = executable;
folder.Open(executable, fun([&](std::streambuf &buffer, const void *flag) {
- folder.Save(executable, flag, fun([&](std::streambuf &save) {
+ folder.Save(executable, true, flag, fun([&](std::streambuf &save) {
Slots slots;
slots[1] = local.at(info);
slots[3] = local.at(signature);
return bundle;
}
-Bundle Sign(const std::string &root, Folder &folder, const std::string &key, const std::string &entitlements, const std::string &requirement) {
+Bundle Sign(const std::string &root, Folder &folder, const std::string &key, const std::string &requirement, const Functor<std::string (const std::string &, const std::string &)> &alter) {
std::map<std::string, Hash> local;
- return Sign(root, folder, key, local, entitlements, requirement);
+ return Sign(root, folder, key, local, requirement, alter);
}
#endif
#ifndef LDID_NOPLIST
_assert(!flag_r);
ldid::DiskFolder folder(path);
- path += "/" + Sign("", folder, key, entitlements, requirement).path;
+ path += "/" + Sign("", folder, key, requirement, ldid::fun([&](const std::string &, const std::string &) -> std::string { return entitlements; })).path;
#else
_assert(false);
#endif
projects / ldid.git / blobdiff