#ifndef LDID_NOSMIME
#include <openssl/err.h>
+#include <openssl/asn1t.h>
#include <openssl/pem.h>
#include <openssl/pkcs7.h>
#include <openssl/pkcs12.h>
return writ;
}
+static inline void put(std::streambuf &stream, uint8_t value) {
+ _assert(stream.sputc(value) != EOF);
+}
+
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 std::string &data) {
+ return put(stream, data.data(), data.size());
+}
+
static size_t most(std::streambuf &stream, void *data, size_t size) {
size_t total(size);
while (size > 0)
static const uint8_t PageShift_(0x0c);
static const uint32_t PageSize_(1 << PageShift_);
+static inline unsigned bytes(uint64_t value) {
+ return (64 - __builtin_clzll(value) + 7) / 8;
+}
+
+static void put(std::streambuf &stream, uint64_t value, size_t length) {
+ length *= 8;
+ do put(stream, uint8_t(value >> (length -= 8)));
+ while (length != 0);
+}
+
+static void der(std::streambuf &stream, uint64_t value) {
+ if (value < 128)
+ put(stream, value);
+ else {
+ unsigned length(bytes(value));
+ put(stream, 0x80 | length);
+ put(stream, value, length);
+ }
+}
+
+static std::string der(uint8_t tag, const char *value, size_t length) {
+ std::stringbuf data;
+ put(data, tag);
+ der(data, length);
+ put(data, value, length);
+ return data.str();
+}
+
+static std::string der(uint8_t tag, const char *value) {
+ return der(tag, value, strlen(value)); }
+static std::string der(uint8_t tag, const std::string &value) {
+ return der(tag, value.data(), value.size()); }
+
+template <typename Type_>
+static void der_(std::stringbuf &data, const Type_ &values) {
+ size_t size(0);
+ for (const auto &value : values)
+ size += value.size();
+ der(data, size);
+ for (const auto &value : values)
+ put(data, value);
+}
+
+static std::string der(const std::vector<std::string> &values) {
+ std::stringbuf data;
+ put(data, 0x30);
+ der_(data, values);
+ return data.str();
+}
+
+static std::string der(const std::multiset<std::string> &values) {
+ std::stringbuf data;
+ put(data, 0x31);
+ der_(data, values);
+ return data.str();
+}
+
+static std::string der(const std::pair<std::string, std::string> &value) {
+ const auto key(der(0x0c, value.first));
+ std::stringbuf data;
+ put(data, 0x30);
+ der(data, key.size() + value.second.size());
+ put(data, key);
+ put(data, value.second);
+ return data.str();
+}
+
+#ifndef LDID_NOPLIST
+static std::string der(plist_t data) {
+ switch (const auto type = plist_get_node_type(data)) {
+ case PLIST_BOOLEAN: {
+ uint8_t value(0);
+ plist_get_bool_val(data, &value);
+
+ std::stringbuf data;
+ put(data, 0x01);
+ der(data, 1);
+ put(data, value != 0 ? 1 : 0);
+ return data.str();
+ } break;
+
+ case PLIST_UINT: {
+ uint64_t value;
+ plist_get_uint_val(data, &value);
+ const auto length(bytes(value));
+
+ std::stringbuf data;
+ put(data, 0x02);
+ der(data, length);
+ put(data, value, length);
+ return data.str();
+ } break;
+
+ case PLIST_REAL: {
+ _assert(false);
+ } break;
+
+ case PLIST_DATE: {
+ _assert(false);
+ } break;
+
+ case PLIST_DATA: {
+ char *value;
+ uint64_t length;
+ plist_get_data_val(data, &value, &length);
+ _scope({ free(value); });
+ return der(0x04, value, length);
+ } break;
+
+ case PLIST_STRING: {
+ char *value;
+ plist_get_string_val(data, &value);
+ _scope({ free(value); });
+ return der(0x0c, value);
+ } break;
+
+ case PLIST_ARRAY: {
+ std::vector<std::string> values;
+ for (auto e(plist_array_get_size(data)), i(decltype(e)(0)); i != e; ++i)
+ values.push_back(der(plist_array_get_item(data, i)));
+ return der(values);
+ } break;
+
+ case PLIST_DICT: {
+ std::multiset<std::string> values;
+
+ plist_dict_iter iterator(NULL);
+ plist_dict_new_iter(data, &iterator);
+ _scope({ free(iterator); });
+
+ for (;;) {
+ char *key(NULL);
+ plist_t value(NULL);
+ plist_dict_next_item(data, iterator, &key, &value);
+ if (key == NULL)
+ break;
+ _scope({ free(key); });
+ values.insert(der(std::make_pair(key, der(value))));
+ }
+
+ return der(values);
+ } break;
+
+ default: {
+ _assert_(false, "unsupported plist type %d", type);
+ } break;
+ }
+}
+#endif
+
static inline uint16_t Swap_(uint16_t value) {
return
((value >> 8) & 0x00ff) |
#define CSMAGIC_EMBEDDED_SIGNATURE uint32_t(0xfade0cc0)
#define CSMAGIC_EMBEDDED_SIGNATURE_OLD uint32_t(0xfade0b02)
#define CSMAGIC_EMBEDDED_ENTITLEMENTS uint32_t(0xfade7171)
+#define CSMAGIC_EMBEDDED_DERFORMAT uint32_t(0xfade7172) // name?
#define CSMAGIC_DETACHED_SIGNATURE uint32_t(0xfade0cc1)
#define CSMAGIC_BLOBWRAPPER uint32_t(0xfade0b01)
#define CSSLOT_RESOURCEDIR uint32_t(0x00003)
#define CSSLOT_APPLICATION uint32_t(0x00004)
#define CSSLOT_ENTITLEMENTS uint32_t(0x00005)
+#define CSSLOT_REPSPECIFIC uint32_t(0x00006) // name?
+#define CSSLOT_DERFORMAT uint32_t(0x00007) // name?
#define CSSLOT_ALTERNATE uint32_t(0x01000)
#define CSSLOT_SIGNATURESLOT uint32_t(0x10000)
#define CS_HASHTYPE_SHA256_160 3
#define CS_HASHTYPE_SHA386_386 4
+#if 0
+#define CS_EXECSEG_MAIN_BINARY 0x001 /* executable segment denotes main binary */
+#define CS_EXECSEG_ALLOW_UNSIGNED 0x010 /* allow unsigned pages (for debugging) */
+#define CS_EXECSEG_DEBUGGER 0x020 /* main binary is debugger */
+#define CS_EXECSEG_JIT 0x040 /* JIT enabled */
+#define CS_EXECSEG_SKIP_LV 0x080 /* skip library validation */
+#define CS_EXECSEG_CAN_LOAD_CDHASH 0x100 /* can bless cdhash for execution */
+#define CS_EXECSEG_CAN_EXEC_CDHASH 0x200 /* can execute blessed cdhash */
+#else
+enum SecCodeExecSegFlags {
+ kSecCodeExecSegMainBinary = 0x001,
+ kSecCodeExecSegAllowUnsigned = 0x010,
+ kSecCodeExecSegDebugger = 0x020,
+ kSecCodeExecSegJit = 0x040,
+ kSecCodeExecSegSkipLibraryVal = 0x080,
+ kSecCodeExecSegCanLoadCdHash = 0x100,
+ kSecCodeExecSegCanExecCdHash = 0x100,
+};
+#endif
+
struct BlobIndex {
uint32_t type;
uint32_t offset;
uint32_t spare2;
uint32_t scatterOffset;
uint32_t teamIDOffset;
- //uint32_t spare3;
- //uint64_t codeLimit64;
+ uint32_t spare3;
+ uint64_t codeLimit64;
+ uint64_t execSegBase;
+ uint64_t execSegLimit;
+ uint64_t execSegFlags;
+#if 0 // version = 0x20500
+ uint32_t runtime;
+ uint32_t preEncryptOffset;
+#endif
+#if 0 // version = 0x20600
+ uint8_t linkageHashType;
+ uint8_t linkageTruncated;
+ uint16_t spare4;
+ uint32_t linkageOffset;
+ uint32_t linkageSize;
+#endif
} _packed;
enum CodeSignatureFlags {
struct Algorithm {
size_t size_;
uint8_t type_;
+ int nid_;
- Algorithm(size_t size, uint8_t type) :
+ Algorithm(size_t size, uint8_t type, int nid) :
size_(size),
- type_(type)
+ type_(type),
+ nid_(nid)
{
}
Algorithm
{
AlgorithmSHA1() :
- Algorithm(LDID_SHA1_DIGEST_LENGTH, CS_HASHTYPE_SHA160_160)
+ Algorithm(LDID_SHA1_DIGEST_LENGTH, CS_HASHTYPE_SHA160_160, NID_sha1)
{
}
Algorithm
{
AlgorithmSHA256() :
- Algorithm(LDID_SHA256_DIGEST_LENGTH, CS_HASHTYPE_SHA256_256)
+ Algorithm(LDID_SHA256_DIGEST_LENGTH, CS_HASHTYPE_SHA256_256, NID_sha256)
{
}
struct Baton {
std::string entitlements_;
+ std::string derformat_;
};
struct CodesignAllocation {
FatMachHeader mach_header_;
- uint32_t offset_;
+ uint64_t offset_;
uint32_t size_;
- uint32_t limit_;
+ uint64_t limit_;
uint32_t alloc_;
uint32_t align_;
const char *arch_;
return entitlements;
}
-static void Allocate(const void *idata, size_t isize, std::streambuf &output, const Functor<size_t (const MachHeader &, Baton &, size_t)> &allocate, const Functor<size_t (const MachHeader &, const Baton &, std::streambuf &output, size_t, const std::string &, const char *, const Progress &)> &save, const Progress &progress) {
+static void Allocate(const void *idata, size_t isize, std::streambuf &output, const Functor<size_t (const MachHeader &, Baton &, size_t)> &allocate, const Functor<size_t (const MachHeader &, const Baton &, std::streambuf &output, size_t, size_t, size_t, const std::string &, const char *, const Progress &)> &save, const Progress &progress) {
FatHeader source(const_cast<void *>(idata), isize);
size_t offset(0);
put(output, &fat_header, sizeof(fat_header));
position += sizeof(fat_header);
+ // XXX: support fat_arch_64 (not in my toolchain)
+ // probably use C++14 generic lambda (not in my toolchain)
+
+ _assert_(![&]() {
+ _foreach (allocation, allocations) {
+ const auto offset(allocation.offset_);
+ const auto size(allocation.limit_ + allocation.alloc_);
+ if (uint32_t(offset) != offset || uint32_t(size) != size)
+ return true;
+ }
+ return false;
+ }(), "FAT slice >=4GiB not currently supported");
+
_foreach (allocation, allocations) {
auto &mach_header(allocation.mach_header_);
fat_arch fat_arch;
fat_arch.cputype = Swap(mach_header->cputype);
fat_arch.cpusubtype = Swap(mach_header->cpusubtype);
- fat_arch.offset = Swap(allocation.offset_);
- fat_arch.size = Swap(allocation.limit_ + allocation.alloc_);
+ fat_arch.offset = Swap(uint32_t(allocation.offset_));
+ fat_arch.size = Swap(uint32_t(allocation.limit_ + allocation.alloc_));
fat_arch.align = Swap(allocation.align_);
put(output, &fat_arch, sizeof(fat_arch));
position += sizeof(fat_arch);
pad(output, allocation.offset_ - position);
position = allocation.offset_;
+ size_t left(-1);
+ size_t right(0);
+
std::vector<std::string> commands;
_foreach (load_command, mach_header.GetLoadCommands()) {
continue;
break;
+ // XXX: this is getting ridiculous: provide a better abstraction
+
case LC_SEGMENT: {
auto segment_command(reinterpret_cast<struct segment_command *>(©[0]));
- if (strncmp(segment_command->segname, "__LINKEDIT", 16) != 0)
- break;
- size_t size(mach_header.Swap(allocation.limit_ + allocation.alloc_ - mach_header.Swap(segment_command->fileoff)));
- segment_command->filesize = size;
- segment_command->vmsize = Align(size, 1 << allocation.align_);
+
+ if ((segment_command->initprot & 04) != 0) {
+ auto begin(mach_header.Swap(segment_command->fileoff));
+ auto end(begin + mach_header.Swap(segment_command->filesize));
+ if (left > begin)
+ left = begin;
+ if (right < end)
+ right = end;
+ }
+
+ if (strncmp(segment_command->segname, "__LINKEDIT", 16) == 0) {
+ size_t size(mach_header.Swap(allocation.limit_ + allocation.alloc_ - mach_header.Swap(segment_command->fileoff)));
+ segment_command->filesize = size;
+ segment_command->vmsize = Align(size, 1 << allocation.align_);
+ }
} break;
case LC_SEGMENT_64: {
auto segment_command(reinterpret_cast<struct segment_command_64 *>(©[0]));
- if (strncmp(segment_command->segname, "__LINKEDIT", 16) != 0)
- break;
- size_t size(mach_header.Swap(allocation.limit_ + allocation.alloc_ - mach_header.Swap(segment_command->fileoff)));
- segment_command->filesize = size;
- segment_command->vmsize = Align(size, 1 << allocation.align_);
+
+ if ((segment_command->initprot & 04) != 0) {
+ auto begin(mach_header.Swap(segment_command->fileoff));
+ auto end(begin + mach_header.Swap(segment_command->filesize));
+ if (left > begin)
+ left = begin;
+ if (right < end)
+ right = end;
+ }
+
+ if (strncmp(segment_command->segname, "__LINKEDIT", 16) == 0) {
+ size_t size(mach_header.Swap(allocation.limit_ + allocation.alloc_ - mach_header.Swap(segment_command->fileoff)));
+ segment_command->filesize = size;
+ segment_command->vmsize = Align(size, 1 << allocation.align_);
+ }
} break;
}
pad(output, allocation.limit_ - allocation.size_);
position += allocation.limit_ - allocation.size_;
- size_t saved(save(mach_header, allocation.baton_, output, allocation.limit_, overlap, top, progress));
+ size_t saved(save(mach_header, allocation.baton_, output, allocation.limit_, left, right, overlap, top, progress));
if (allocation.alloc_ > saved)
pad(output, allocation.alloc_ - saved);
else
}
};
+class Octet {
+ private:
+ ASN1_OCTET_STRING *value_;
+
+ public:
+ Octet() :
+ value_(ASN1_OCTET_STRING_new())
+ {
+ _assert(value_ != NULL);
+ }
+
+ Octet(const std::string &value) :
+ Octet()
+ {
+ _assert(ASN1_STRING_set(value_, value.data(), value.size()));
+ }
+
+ Octet(const uint8_t *data, size_t size) :
+ Octet()
+ {
+ _assert(ASN1_STRING_set(value_, data, size));
+ }
+
+ Octet(const Octet &value) = delete;
+
+ ~Octet() {
+ if (value_ != NULL)
+ ASN1_OCTET_STRING_free(value_);
+ }
+
+ void release() {
+ value_ = NULL;
+ }
+
+ operator ASN1_OCTET_STRING *() const {
+ return value_;
+ }
+};
+
+typedef struct {
+ ASN1_OBJECT *algorithm;
+ ASN1_OCTET_STRING *value;
+} APPLE_CDHASH;
+
+DECLARE_ASN1_FUNCTIONS(APPLE_CDHASH)
+
+ASN1_NDEF_SEQUENCE(APPLE_CDHASH) = {
+ ASN1_SIMPLE(APPLE_CDHASH, algorithm, ASN1_OBJECT),
+ ASN1_SIMPLE(APPLE_CDHASH, value, ASN1_OCTET_STRING),
+} ASN1_NDEF_SEQUENCE_END(APPLE_CDHASH)
+
+IMPLEMENT_ASN1_FUNCTIONS(APPLE_CDHASH)
+
+typedef struct {
+ ASN1_OBJECT *object;
+ STACK_OF(APPLE_CDHASH) *cdhashes;
+} APPLE_CDATTR;
+
+DECLARE_ASN1_FUNCTIONS(APPLE_CDATTR)
+
+ASN1_NDEF_SEQUENCE(APPLE_CDATTR) = {
+ ASN1_SIMPLE(APPLE_CDATTR, object, ASN1_OBJECT),
+ ASN1_SET_OF(APPLE_CDATTR, cdhashes, APPLE_CDHASH),
+} ASN1_NDEF_SEQUENCE_END(APPLE_CDATTR)
+
+IMPLEMENT_ASN1_FUNCTIONS(APPLE_CDATTR)
+
class Signature {
private:
PKCS7 *value_;
public:
- Signature(const Stuff &stuff, const Buffer &data, const std::string &xml) {
+ Signature(const Stuff &stuff, const Buffer &data, const std::string &xml, const ldid::Hash &hash) {
value_ = PKCS7_new();
_assert(value_ != NULL);
for (unsigned i(0), e(sk_X509_num(certs)); i != e; i++)
_assert(PKCS7_add_certificate(value_, sk_X509_value(certs, e - i - 1)));
+ STACK_OF(X509_ATTRIBUTE) *attributes(sk_X509_ATTRIBUTE_new_null());
+ _assert(attributes != NULL);
+ _scope({ sk_X509_ATTRIBUTE_pop_free(attributes, X509_ATTRIBUTE_free); });
+
+
// XXX: this is the same as PKCS7_sign_add_signer(value_, stuff, stuff, NULL, PKCS7_NOSMIMECAP)
_assert(X509_check_private_key(stuff, stuff));
auto info(PKCS7_add_signature(value_, stuff, stuff, EVP_sha1()));
_assert(info != NULL);
_assert(PKCS7_add_certificate(value_, stuff));
- _assert(PKCS7_add_signed_attribute(info, NID_pkcs9_contentType, V_ASN1_OBJECT, OBJ_nid2obj(NID_pkcs7_data)));
- PKCS7_set_detached(value_, 1);
+ {
+ auto attribute(X509_ATTRIBUTE_create(NID_pkcs9_contentType, V_ASN1_OBJECT, OBJ_nid2obj(NID_pkcs7_data)));
+ _assert(attribute != NULL);
+ _assert(sk_X509_ATTRIBUTE_push(attributes, attribute) != 0);
+ }
+
+ {
+ auto cdattr(APPLE_CDATTR_new());
+ _assert(cdattr != NULL);
+ _scope({ APPLE_CDATTR_free(cdattr); });
- ASN1_OCTET_STRING *string(ASN1_OCTET_STRING_new());
- _assert(string != NULL);
- try {
- _assert(ASN1_STRING_set(string, xml.data(), xml.size()));
+ static auto nid(OBJ_create("1.2.840.113635.100.9.2", "", ""));
+ cdattr->object = OBJ_nid2obj(nid);
+ for (Algorithm *pointer : GetAlgorithms()) {
+ Algorithm &algorithm(*pointer);
+ APPLE_CDHASH *cdhash(APPLE_CDHASH_new());
+ _assert(cdhash != NULL);
+ _assert(sk_push((_STACK *) cdattr->cdhashes, cdhash) != 0);
+ cdhash->algorithm = OBJ_nid2obj(algorithm.nid_);
+ Octet string(algorithm[hash], algorithm.size_);
+ cdhash->value = string;
+ string.release();
+ }
+
+ // in e20b57270dece66ce2c68aeb5d14dd6d9f3c5d68 OpenSSL removed a "hack"
+ // in the process, they introduced a useful bug in X509_ATTRIBUTE_set1_data
+ // however, I don't want to rely on that or detect the bypass before it
+ // so, instead, I create my own compatible attribute and re-serialize it :/
+
+ ASN1_STRING *seq(ASN1_STRING_new());
+ _assert(seq != NULL);
+ _scope({ ASN1_STRING_free(seq); });
+ seq->length = ASN1_item_i2d((ASN1_VALUE *) cdattr, &seq->data, ASN1_ITEM_rptr(APPLE_CDATTR));
+
+ X509_ATTRIBUTE *attribute(NULL);
+ const unsigned char *data(seq->data);
+ _assert(d2i_X509_ATTRIBUTE(&attribute, &data, seq->length) != 0);
+ _assert(attribute != NULL);
+ _assert(sk_X509_ATTRIBUTE_push(attributes, attribute) != 0);
+ }
+
+ {
+ // XXX: move the "cdhashes" plist code to here and remove xml argument
+
+ Octet string(xml);
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;
+ auto attribute(X509_ATTRIBUTE_create(nid, V_ASN1_OCTET_STRING, string));
+ _assert(attribute != NULL);
+ string.release();
+ _assert(sk_X509_ATTRIBUTE_push(attributes, attribute) != 0);
}
+ _assert(PKCS7_set_signed_attributes(info, attributes) != 0);
+ PKCS7_set_detached(value_, 1);
+
// XXX: this is the same as PKCS7_final(value_, data, PKCS7_BINARY)
BIO *bio(PKCS7_dataInit(value_, NULL));
_assert(bio != NULL);
alloc += sizeof(struct BlobIndex);
alloc += backing.str().size();
- if (!merge)
- baton.entitlements_ = entitlements;
- else {
-#ifndef LDID_NOPLIST
+#ifdef LDID_NOPLIST
+ baton.entitlements_ = entitlements;
+#else
+ if (merge)
Analyze(mach_header, fun([&](const char *data, size_t size) {
baton.entitlements_.assign(data, size);
}));
- if (baton.entitlements_.empty())
- baton.entitlements_ = entitlements;
- else if (!entitlements.empty()) {
- auto combined(plist(baton.entitlements_));
- _scope({ plist_free(combined); });
- _assert(plist_get_node_type(combined) == PLIST_DICT);
-
- auto merging(plist(entitlements));
- _scope({ plist_free(merging); });
- _assert(plist_get_node_type(merging) == PLIST_DICT);
-
- plist_dict_iter iterator(NULL);
- plist_dict_new_iter(merging, &iterator);
- _scope({ free(iterator); });
-
- for (;;) {
- char *key(NULL);
- plist_t value(NULL);
- plist_dict_next_item(merging, iterator, &key, &value);
- if (key == NULL)
- break;
- _scope({ free(key); });
- plist_dict_set_item(combined, key, plist_copy(value));
- }
+ if (!baton.entitlements_.empty() || !entitlements.empty()) {
+ auto combined(plist(baton.entitlements_));
+ _scope({ plist_free(combined); });
+ _assert(plist_get_node_type(combined) == PLIST_DICT);
+
+ auto merging(plist(entitlements));
+ _scope({ plist_free(merging); });
+ _assert(plist_get_node_type(merging) == PLIST_DICT);
- char *xml(NULL);
- uint32_t size;
- plist_to_xml(combined, &xml, &size);
- _scope({ free(xml); });
+ plist_dict_iter iterator(NULL);
+ plist_dict_new_iter(merging, &iterator);
+ _scope({ free(iterator); });
- baton.entitlements_.assign(xml, size);
+ for (;;) {
+ char *key(NULL);
+ plist_t value(NULL);
+ plist_dict_next_item(merging, iterator, &key, &value);
+ if (key == NULL)
+ break;
+ _scope({ free(key); });
+ plist_dict_set_item(combined, key, plist_copy(value));
}
-#else
- _assert(false);
-#endif
+
+ baton.derformat_ = der(combined);
+
+ char *xml(NULL);
+ uint32_t size;
+ plist_to_xml(combined, &xml, &size);
+ _scope({ free(xml); });
+
+ baton.entitlements_.assign(xml, size);
}
+#endif
if (!baton.entitlements_.empty()) {
special = std::max(special, CSSLOT_ENTITLEMENTS);
alloc += baton.entitlements_.size();
}
+ if (!baton.derformat_.empty()) {
+ special = std::max(special, CSSLOT_DERFORMAT);
+ alloc += sizeof(struct BlobIndex);
+ alloc += sizeof(struct Blob);
+ alloc += baton.derformat_.size();
+ }
+
size_t directory(0);
directory += sizeof(struct BlobIndex);
#endif
return alloc;
- }), fun([&](const MachHeader &mach_header, const Baton &baton, std::streambuf &output, size_t limit, const std::string &overlap, const char *top, const Progress &progress) -> size_t {
+ }), fun([&](const MachHeader &mach_header, const Baton &baton, std::streambuf &output, size_t limit, size_t left, size_t right, const std::string &overlap, const char *top, const Progress &progress) -> size_t {
Blobs blobs;
if (true) {
insert(blobs, CSSLOT_REQUIREMENTS, backing);
}
+ uint64_t execs(0);
+ if (mach_header.Swap(mach_header->filetype) == MH_EXECUTE)
+ execs |= kSecCodeExecSegMainBinary;
+
if (!baton.entitlements_.empty()) {
std::stringbuf data;
put(data, baton.entitlements_.data(), baton.entitlements_.size());
insert(blobs, CSSLOT_ENTITLEMENTS, CSMAGIC_EMBEDDED_ENTITLEMENTS, data);
+
+#ifndef LDID_NOPLIST
+ auto entitlements(plist(baton.entitlements_));
+ _scope({ plist_free(entitlements); });
+ _assert(plist_get_node_type(entitlements) == PLIST_DICT);
+
+ const auto entitled([&](const char *key) {
+ auto item(plist_dict_get_item(entitlements, key));
+ if (plist_get_node_type(item) != PLIST_BOOLEAN)
+ return false;
+ uint8_t value(0);
+ plist_get_bool_val(item, &value);
+ return value != 0;
+ });
+
+ if (entitled("get-task-allow"))
+ execs |= kSecCodeExecSegAllowUnsigned;
+ if (entitled("run-unsigned-code"))
+ execs |= kSecCodeExecSegAllowUnsigned;
+ if (entitled("com.apple.private.cs.debugger"))
+ execs |= kSecCodeExecSegDebugger;
+ if (entitled("dynamic-codesigning"))
+ execs |= kSecCodeExecSegJit;
+ if (entitled("com.apple.private.skip-library-validation"))
+ execs |= kSecCodeExecSegSkipLibraryVal;
+ if (entitled("com.apple.private.amfi.can-load-cdhash"))
+ execs |= kSecCodeExecSegCanLoadCdHash;
+ if (entitled("com.apple.private.amfi.can-execute-cdhash"))
+ execs |= kSecCodeExecSegCanExecCdHash;
+#endif
+ }
+
+ if (!baton.derformat_.empty()) {
+ std::stringbuf data;
+ put(data, baton.derformat_.data(), baton.derformat_.size());
+ insert(blobs, CSSLOT_DERFORMAT, CSMAGIC_EMBEDDED_DERFORMAT, data);
}
Slots posts(slots);
uint32_t normal((limit + PageSize_ - 1) / PageSize_);
CodeDirectory directory;
- directory.version = Swap(uint32_t(0x00020200));
+ directory.version = Swap(uint32_t(0x00020400));
directory.flags = Swap(uint32_t(flags));
directory.nSpecialSlots = Swap(special);
- directory.codeLimit = Swap(uint32_t(limit));
+ directory.codeLimit = Swap(uint32_t(limit > UINT32_MAX ? UINT32_MAX : limit));
directory.nCodeSlots = Swap(normal);
directory.hashSize = algorithm.size_;
directory.hashType = algorithm.type_;
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));
+ directory.spare3 = Swap(uint32_t(0));
+ directory.codeLimit64 = Swap(uint64_t(limit > UINT32_MAX ? limit : 0));
+ directory.execSegBase = Swap(uint64_t(left));
+ directory.execSegLimit = Swap(uint64_t(right - left));
+ directory.execSegFlags = Swap(execs);
uint32_t offset(sizeof(Blob) + sizeof(CodeDirectory));
plist_dict_set_item(plist, "cdhashes", cdhashes);
#endif
+ ldid::Hash hash;
+
unsigned total(0);
for (Algorithm *pointer : GetAlgorithms()) {
Algorithm &algorithm(*pointer);
const auto &blob(blobs[total == 0 ? CSSLOT_CODEDIRECTORY : CSSLOT_ALTERNATE + total - 1]);
++total;
- std::vector<char> hash;
algorithm(hash, blob.data(), blob.size());
- hash.resize(20);
+
+ std::vector<char> cdhash(algorithm[hash], algorithm[hash] + algorithm.size_);
+ cdhash.resize(20);
#ifdef LDID_NOPLIST
- auto value(CFDataCreate(kCFAllocatorDefault, reinterpret_cast<const UInt8 *>(hash.data()), hash.size()));
+ auto value(CFDataCreate(kCFAllocatorDefault, reinterpret_cast<const UInt8 *>(cdhash.data()), cdhash.size()));
_scope({ CFRelease(value); });
CFArrayAppendValue(cdhashes, value);
#else
- plist_array_append_item(cdhashes, plist_new_data(hash.data(), hash.size()));
+ plist_array_append_item(cdhashes, plist_new_data(cdhash.data(), cdhash.size()));
#endif
}
Stuff stuff(key);
Buffer bio(sign);
- Signature signature(stuff, sign, std::string(xml, size));
+ Signature signature(stuff, sign, std::string(xml, size), hash);
Buffer result(signature);
std::string value(result);
put(data, value.data(), value.size());
static void Unsign(void *idata, size_t isize, std::streambuf &output, const Progress &progress) {
Allocate(idata, isize, output, fun([](const MachHeader &mach_header, Baton &baton, size_t size) -> size_t {
return 0;
- }), fun([](const MachHeader &mach_header, const Baton &baton, std::streambuf &output, size_t limit, const std::string &overlap, const char *top, const Progress &progress) -> size_t {
+ }), fun([](const MachHeader &mach_header, const Baton &baton, std::streambuf &output, size_t limit, size_t left, size_t right, const std::string &overlap, const char *top, const Progress &progress) -> size_t {
return 0;
}), progress);
}
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;
+ NullBuffer save;
code(save);
} else {
std::filebuf save;
#ifndef LDID_NOPLIST
static plist_t plist(const std::string &data) {
+ if (data.empty())
+ return plist_new_dict();
plist_t plist(NULL);
if (Starts(data, "bplist00"))
plist_from_bin(data.data(), data.size(), &plist);
}
};
-Bundle Sign(const std::string &root, Folder &parent, const std::string &key, State &remote, const std::string &requirements, const Functor<std::string (const std::string &, const std::string &)> &alter, const Progress &progress) {
+Bundle Sign(const std::string &root, Folder &parent, const std::string &key, State &local, const std::string &requirements, const Functor<std::string (const std::string &, const std::string &)> &alter, const Progress &progress) {
std::string executable;
std::string identifier;
rules2.insert(Rule{20, NoMode, "^version\\.plist$"});
}
- State local;
-
std::string failure(mac ? "Contents/|Versions/[^/]*/Resources/" : "");
Expression nested("^(Frameworks/[^/]*\\.framework|PlugIns/[^/]*\\.appex(()|/[^/]*.app))/(" + failure + ")Info\\.plist$");
std::map<std::string, Bundle> bundles;
folder.Find("", fun([&](const std::string &name) {
if (!nested(name))
return;
- auto bundle(root + Split(name).dir);
+ auto bundle(Split(name).dir);
if (mac) {
_assert(!bundle.empty());
bundle = Split(bundle.substr(0, bundle.size() - 1)).dir;
}
SubFolder subfolder(folder, bundle);
- bundles[nested[1]] = Sign(bundle, subfolder, key, local, "", Starts(name, "PlugIns/") ? alter :
+ State remote;
+ bundles[nested[1]] = Sign(root + bundle, subfolder, key, remote, "", Starts(name, "PlugIns/") ? alter :
static_cast<const Functor<std::string (const std::string &, const std::string &)> &>(fun([&](const std::string &, const std::string &) -> std::string { return entitlements; }))
, progress);
+ local.Merge(bundle, remote);
}), fun([&](const std::string &name, const Functor<std::string ()> &read) {
}));
}));
}));
- remote.Merge(root, local);
return bundle;
}
bool flag_s(false);
bool flag_D(false);
+ bool flag_d(false);
bool flag_A(false);
bool flag_a(false);
} break;
case 'D': flag_D = true; break;
+ case 'd': flag_d = true; break;
case 'a': flag_a = true; break;
_assert(flag_S || key.empty());
_assert(flag_S || flag_I == NULL);
+ if (flag_d && !flag_h) {
+ flag_h = true;
+ fprintf(stderr, "WARNING: -d also (temporarily) does the behavior of -h for compatibility with a fork of ldid\n");
+ }
+
if (files.empty())
return 0;
struct stat info;
_syscall(stat(path.c_str(), &info));
- if (flag_S && S_ISDIR(info.st_mode)) {
+ if (S_ISDIR(info.st_mode)) {
+ _assert(flag_S);
#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; }), dummy_).path;
#else
#endif
}
+ if (flag_d && encryption != NULL) {
+ printf("cryptid=%d\n", mach_header.Swap(encryption->cryptid));
+ }
+
if (flag_D) {
_assert(encryption != NULL);
encryption->cryptid = mach_header.Swap(0);
projects / ldid.git / blobdiff