diff options
Diffstat (limited to 'platform/osx/export/macho.cpp')
| -rw-r--r-- | platform/osx/export/macho.cpp | 548 |
1 files changed, 0 insertions, 548 deletions
diff --git a/platform/osx/export/macho.cpp b/platform/osx/export/macho.cpp deleted file mode 100644 index e6e67eff06..0000000000 --- a/platform/osx/export/macho.cpp +++ /dev/null @@ -1,548 +0,0 @@ -/*************************************************************************/ -/* macho.cpp */ -/*************************************************************************/ -/* This file is part of: */ -/* GODOT ENGINE */ -/* https://godotengine.org */ -/*************************************************************************/ -/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ -/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ -/* */ -/* Permission is hereby granted, free of charge, to any person obtaining */ -/* a copy of this software and associated documentation files (the */ -/* "Software"), to deal in the Software without restriction, including */ -/* without limitation the rights to use, copy, modify, merge, publish, */ -/* distribute, sublicense, and/or sell copies of the Software, and to */ -/* permit persons to whom the Software is furnished to do so, subject to */ -/* the following conditions: */ -/* */ -/* The above copyright notice and this permission notice shall be */ -/* included in all copies or substantial portions of the Software. */ -/* */ -/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ -/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ -/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ -/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ -/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ -/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ -/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -/*************************************************************************/ - -#include "modules/modules_enabled.gen.h" // For regex. - -#include "macho.h" - -#ifdef MODULE_REGEX_ENABLED - -uint32_t MachO::seg_align(uint64_t p_vmaddr, uint32_t p_min, uint32_t p_max) { - uint32_t align = p_max; - if (p_vmaddr != 0) { - uint64_t seg_align = 1; - align = 0; - while ((seg_align & p_vmaddr) == 0) { - seg_align = seg_align << 1; - align++; - } - align = CLAMP(align, p_min, p_max); - } - return align; -} - -bool MachO::alloc_signature(uint64_t p_size) { - ERR_FAIL_COND_V_MSG(fa.is_null(), false, "MachO: File not opened."); - if (signature_offset != 0) { - // Nothing to do, already have signature load command. - return true; - } - if (lc_limit == 0 || lc_limit + 16 > exe_base) { - ERR_FAIL_V_MSG(false, "MachO: Can't allocate signature load command, please use \"codesign_allocate\" utility first."); - } else { - // Add signature load command. - signature_offset = lc_limit; - - fa->seek(lc_limit); - LoadCommandHeader lc; - lc.cmd = LC_CODE_SIGNATURE; - lc.cmdsize = 16; - if (swap) { - lc.cmdsize = BSWAP32(lc.cmdsize); - } - fa->store_buffer((const uint8_t *)&lc, sizeof(LoadCommandHeader)); - - uint32_t lc_offset = fa->get_length() + PAD(fa->get_length(), 16); - uint32_t lc_size = 0; - if (swap) { - lc_offset = BSWAP32(lc_offset); - lc_size = BSWAP32(lc_size); - } - fa->store_32(lc_offset); - fa->store_32(lc_size); - - // Write new command number. - fa->seek(0x10); - uint32_t ncmds = fa->get_32(); - uint32_t cmdssize = fa->get_32(); - if (swap) { - ncmds = BSWAP32(ncmds); - cmdssize = BSWAP32(cmdssize); - } - ncmds += 1; - cmdssize += 16; - if (swap) { - ncmds = BSWAP32(ncmds); - cmdssize = BSWAP32(cmdssize); - } - fa->seek(0x10); - fa->store_32(ncmds); - fa->store_32(cmdssize); - - lc_limit = lc_limit + sizeof(LoadCommandHeader) + 8; - - return true; - } -} - -bool MachO::is_macho(const String &p_path) { - Ref<FileAccess> fb = FileAccess::open(p_path, FileAccess::READ); - ERR_FAIL_COND_V_MSG(fb.is_null(), false, vformat("MachO: Can't open file: \"%s\".", p_path)); - uint32_t magic = fb->get_32(); - return (magic == 0xcefaedfe || magic == 0xfeedface || magic == 0xcffaedfe || magic == 0xfeedfacf); -} - -bool MachO::open_file(const String &p_path) { - fa = FileAccess::open(p_path, FileAccess::READ_WRITE); - ERR_FAIL_COND_V_MSG(fa.is_null(), false, vformat("MachO: Can't open file: \"%s\".", p_path)); - uint32_t magic = fa->get_32(); - MachHeader mach_header; - - // Read MachO header. - swap = (magic == 0xcffaedfe || magic == 0xcefaedfe); - if (magic == 0xcefaedfe || magic == 0xfeedface) { - // Thin 32-bit binary. - fa->get_buffer((uint8_t *)&mach_header, sizeof(MachHeader)); - } else if (magic == 0xcffaedfe || magic == 0xfeedfacf) { - // Thin 64-bit binary. - fa->get_buffer((uint8_t *)&mach_header, sizeof(MachHeader)); - fa->get_32(); // Skip extra reserved field. - } else { - ERR_FAIL_V_MSG(false, vformat("MachO: File is not a valid MachO binary: \"%s\".", p_path)); - } - - if (swap) { - mach_header.ncmds = BSWAP32(mach_header.ncmds); - mach_header.cpusubtype = BSWAP32(mach_header.cpusubtype); - mach_header.cputype = BSWAP32(mach_header.cputype); - } - cpusubtype = mach_header.cpusubtype; - cputype = mach_header.cputype; - align = 0; - exe_base = std::numeric_limits<uint64_t>::max(); - exe_limit = 0; - lc_limit = 0; - link_edit_offset = 0; - signature_offset = 0; - - // Read load commands. - for (uint32_t i = 0; i < mach_header.ncmds; i++) { - LoadCommandHeader lc; - fa->get_buffer((uint8_t *)&lc, sizeof(LoadCommandHeader)); - if (swap) { - lc.cmd = BSWAP32(lc.cmd); - lc.cmdsize = BSWAP32(lc.cmdsize); - } - uint64_t ps = fa->get_position(); - switch (lc.cmd) { - case LC_SEGMENT: { - LoadCommandSegment lc_seg; - fa->get_buffer((uint8_t *)&lc_seg, sizeof(LoadCommandSegment)); - if (swap) { - lc_seg.nsects = BSWAP32(lc_seg.nsects); - lc_seg.vmaddr = BSWAP32(lc_seg.vmaddr); - lc_seg.vmsize = BSWAP32(lc_seg.vmsize); - } - align = MAX(align, seg_align(lc_seg.vmaddr, 2, 15)); - if (String(lc_seg.segname) == "__TEXT") { - exe_limit = MAX(exe_limit, lc_seg.vmsize); - for (uint32_t j = 0; j < lc_seg.nsects; j++) { - Section lc_sect; - fa->get_buffer((uint8_t *)&lc_sect, sizeof(Section)); - if (String(lc_sect.sectname) == "__text") { - if (swap) { - exe_base = MIN(exe_base, BSWAP32(lc_sect.offset)); - } else { - exe_base = MIN(exe_base, lc_sect.offset); - } - } - if (swap) { - align = MAX(align, BSWAP32(lc_sect.align)); - } else { - align = MAX(align, lc_sect.align); - } - } - } else if (String(lc_seg.segname) == "__LINKEDIT") { - link_edit_offset = ps - 8; - } - } break; - case LC_SEGMENT_64: { - LoadCommandSegment64 lc_seg; - fa->get_buffer((uint8_t *)&lc_seg, sizeof(LoadCommandSegment64)); - if (swap) { - lc_seg.nsects = BSWAP32(lc_seg.nsects); - lc_seg.vmaddr = BSWAP64(lc_seg.vmaddr); - lc_seg.vmsize = BSWAP64(lc_seg.vmsize); - } - align = MAX(align, seg_align(lc_seg.vmaddr, 3, 15)); - if (String(lc_seg.segname) == "__TEXT") { - exe_limit = MAX(exe_limit, lc_seg.vmsize); - for (uint32_t j = 0; j < lc_seg.nsects; j++) { - Section64 lc_sect; - fa->get_buffer((uint8_t *)&lc_sect, sizeof(Section64)); - if (String(lc_sect.sectname) == "__text") { - if (swap) { - exe_base = MIN(exe_base, BSWAP32(lc_sect.offset)); - } else { - exe_base = MIN(exe_base, lc_sect.offset); - } - if (swap) { - align = MAX(align, BSWAP32(lc_sect.align)); - } else { - align = MAX(align, lc_sect.align); - } - } - } - } else if (String(lc_seg.segname) == "__LINKEDIT") { - link_edit_offset = ps - 8; - } - } break; - case LC_CODE_SIGNATURE: { - signature_offset = ps - 8; - } break; - default: { - } break; - } - fa->seek(ps + lc.cmdsize - 8); - lc_limit = ps + lc.cmdsize - 8; - } - - if (exe_limit == 0 || lc_limit == 0) { - ERR_FAIL_V_MSG(false, vformat("MachO: No load commands or executable code found: \"%s\".", p_path)); - } - - return true; -} - -uint64_t MachO::get_exe_base() { - ERR_FAIL_COND_V_MSG(fa.is_null(), 0, "MachO: File not opened."); - return exe_base; -} - -uint64_t MachO::get_exe_limit() { - ERR_FAIL_COND_V_MSG(fa.is_null(), 0, "MachO: File not opened."); - return exe_limit; -} - -int32_t MachO::get_align() { - ERR_FAIL_COND_V_MSG(fa.is_null(), 0, "MachO: File not opened."); - return align; -} - -uint32_t MachO::get_cputype() { - ERR_FAIL_COND_V_MSG(fa.is_null(), 0, "MachO: File not opened."); - return cputype; -} - -uint32_t MachO::get_cpusubtype() { - ERR_FAIL_COND_V_MSG(fa.is_null(), 0, "MachO: File not opened."); - return cpusubtype; -} - -uint64_t MachO::get_size() { - ERR_FAIL_COND_V_MSG(fa.is_null(), 0, "MachO: File not opened."); - return fa->get_length(); -} - -uint64_t MachO::get_signature_offset() { - ERR_FAIL_COND_V_MSG(fa.is_null(), 0, "MachO: File not opened."); - ERR_FAIL_COND_V_MSG(signature_offset == 0, 0, "MachO: No signature load command."); - - fa->seek(signature_offset + 8); - if (swap) { - return BSWAP32(fa->get_32()); - } else { - return fa->get_32(); - } -} - -uint64_t MachO::get_code_limit() { - ERR_FAIL_COND_V_MSG(fa.is_null(), 0, "MachO: File not opened."); - - if (signature_offset == 0) { - return fa->get_length() + PAD(fa->get_length(), 16); - } else { - return get_signature_offset(); - } -} - -uint64_t MachO::get_signature_size() { - ERR_FAIL_COND_V_MSG(fa.is_null(), 0, "MachO: File not opened."); - ERR_FAIL_COND_V_MSG(signature_offset == 0, 0, "MachO: No signature load command."); - - fa->seek(signature_offset + 12); - if (swap) { - return BSWAP32(fa->get_32()); - } else { - return fa->get_32(); - } -} - -bool MachO::is_signed() { - ERR_FAIL_COND_V_MSG(fa.is_null(), false, "MachO: File not opened."); - if (signature_offset == 0) { - return false; - } - - fa->seek(get_signature_offset()); - uint32_t magic = BSWAP32(fa->get_32()); - if (magic != 0xfade0cc0) { - return false; // No SuperBlob found. - } - fa->get_32(); // Skip size field, unused. - uint32_t count = BSWAP32(fa->get_32()); - for (uint32_t i = 0; i < count; i++) { - uint32_t index_type = BSWAP32(fa->get_32()); - uint32_t offset = BSWAP32(fa->get_32()); - if (index_type == 0x00000000) { // CodeDirectory index type. - fa->seek(get_signature_offset() + offset + 12); - uint32_t flags = BSWAP32(fa->get_32()); - if (flags & 0x20000) { - return false; // Found CD, linker-signed. - } else { - return true; // Found CD, not linker-signed. - } - } - } - return false; // No CD found. -} - -PackedByteArray MachO::get_cdhash_sha1() { - ERR_FAIL_COND_V_MSG(fa.is_null(), PackedByteArray(), "MachO: File not opened."); - if (signature_offset == 0) { - return PackedByteArray(); - } - - fa->seek(get_signature_offset()); - uint32_t magic = BSWAP32(fa->get_32()); - if (magic != 0xfade0cc0) { - return PackedByteArray(); // No SuperBlob found. - } - fa->get_32(); // Skip size field, unused. - uint32_t count = BSWAP32(fa->get_32()); - for (uint32_t i = 0; i < count; i++) { - fa->get_32(); // Index type, skip. - uint32_t offset = BSWAP32(fa->get_32()); - uint64_t pos = fa->get_position(); - - fa->seek(get_signature_offset() + offset); - uint32_t cdmagic = BSWAP32(fa->get_32()); - uint32_t cdsize = BSWAP32(fa->get_32()); - if (cdmagic == 0xfade0c02) { // CodeDirectory. - fa->seek(get_signature_offset() + offset + 36); - uint8_t hash_size = fa->get_8(); - uint8_t hash_type = fa->get_8(); - if (hash_size == 0x14 && hash_type == 0x01) { /* SHA-1 */ - PackedByteArray hash; - hash.resize(0x14); - - fa->seek(get_signature_offset() + offset); - PackedByteArray blob; - blob.resize(cdsize); - fa->get_buffer(blob.ptrw(), cdsize); - - CryptoCore::SHA1Context ctx; - ctx.start(); - ctx.update(blob.ptr(), blob.size()); - ctx.finish(hash.ptrw()); - - return hash; - } - } - fa->seek(pos); - } - return PackedByteArray(); -} - -PackedByteArray MachO::get_cdhash_sha256() { - ERR_FAIL_COND_V_MSG(fa.is_null(), PackedByteArray(), "MachO: File not opened."); - if (signature_offset == 0) { - return PackedByteArray(); - } - - fa->seek(get_signature_offset()); - uint32_t magic = BSWAP32(fa->get_32()); - if (magic != 0xfade0cc0) { - return PackedByteArray(); // No SuperBlob found. - } - fa->get_32(); // Skip size field, unused. - uint32_t count = BSWAP32(fa->get_32()); - for (uint32_t i = 0; i < count; i++) { - fa->get_32(); // Index type, skip. - uint32_t offset = BSWAP32(fa->get_32()); - uint64_t pos = fa->get_position(); - - fa->seek(get_signature_offset() + offset); - uint32_t cdmagic = BSWAP32(fa->get_32()); - uint32_t cdsize = BSWAP32(fa->get_32()); - if (cdmagic == 0xfade0c02) { // CodeDirectory. - fa->seek(get_signature_offset() + offset + 36); - uint8_t hash_size = fa->get_8(); - uint8_t hash_type = fa->get_8(); - if (hash_size == 0x20 && hash_type == 0x02) { /* SHA-256 */ - PackedByteArray hash; - hash.resize(0x20); - - fa->seek(get_signature_offset() + offset); - PackedByteArray blob; - blob.resize(cdsize); - fa->get_buffer(blob.ptrw(), cdsize); - - CryptoCore::SHA256Context ctx; - ctx.start(); - ctx.update(blob.ptr(), blob.size()); - ctx.finish(hash.ptrw()); - - return hash; - } - } - fa->seek(pos); - } - return PackedByteArray(); -} - -PackedByteArray MachO::get_requirements() { - ERR_FAIL_COND_V_MSG(fa.is_null(), PackedByteArray(), "MachO: File not opened."); - if (signature_offset == 0) { - return PackedByteArray(); - } - - fa->seek(get_signature_offset()); - uint32_t magic = BSWAP32(fa->get_32()); - if (magic != 0xfade0cc0) { - return PackedByteArray(); // No SuperBlob found. - } - fa->get_32(); // Skip size field, unused. - uint32_t count = BSWAP32(fa->get_32()); - for (uint32_t i = 0; i < count; i++) { - fa->get_32(); // Index type, skip. - uint32_t offset = BSWAP32(fa->get_32()); - uint64_t pos = fa->get_position(); - - fa->seek(get_signature_offset() + offset); - uint32_t rqmagic = BSWAP32(fa->get_32()); - uint32_t rqsize = BSWAP32(fa->get_32()); - if (rqmagic == 0xfade0c01) { // Requirements. - PackedByteArray blob; - fa->seek(get_signature_offset() + offset); - blob.resize(rqsize); - fa->get_buffer(blob.ptrw(), rqsize); - return blob; - } - fa->seek(pos); - } - return PackedByteArray(); -} - -const Ref<FileAccess> MachO::get_file() const { - return fa; -} - -Ref<FileAccess> MachO::get_file() { - return fa; -} - -bool MachO::set_signature_size(uint64_t p_size) { - ERR_FAIL_COND_V_MSG(fa.is_null(), false, "MachO: File not opened."); - - // Ensure signature load command exists. - ERR_FAIL_COND_V_MSG(link_edit_offset == 0, false, "MachO: No __LINKEDIT segment found."); - ERR_FAIL_COND_V_MSG(!alloc_signature(p_size), false, "MachO: Can't allocate signature load command."); - - // Update signature load command. - uint64_t old_size = get_signature_size(); - uint64_t new_size = p_size + PAD(p_size, 16384); - - if (new_size <= old_size) { - fa->seek(get_signature_offset()); - for (uint64_t i = 0; i < old_size; i++) { - fa->store_8(0x00); - } - return true; - } - - fa->seek(signature_offset + 12); - if (swap) { - fa->store_32(BSWAP32(new_size)); - } else { - fa->store_32(new_size); - } - - uint64_t end = get_signature_offset() + new_size; - - // Update "__LINKEDIT" segment. - LoadCommandHeader lc; - fa->seek(link_edit_offset); - fa->get_buffer((uint8_t *)&lc, sizeof(LoadCommandHeader)); - if (swap) { - lc.cmd = BSWAP32(lc.cmd); - lc.cmdsize = BSWAP32(lc.cmdsize); - } - switch (lc.cmd) { - case LC_SEGMENT: { - LoadCommandSegment lc_seg; - fa->get_buffer((uint8_t *)&lc_seg, sizeof(LoadCommandSegment)); - if (swap) { - lc_seg.vmsize = BSWAP32(lc_seg.vmsize); - lc_seg.filesize = BSWAP32(lc_seg.filesize); - lc_seg.fileoff = BSWAP32(lc_seg.fileoff); - } - - lc_seg.vmsize = end - lc_seg.fileoff; - lc_seg.vmsize += PAD(lc_seg.vmsize, 4096); - lc_seg.filesize = end - lc_seg.fileoff; - - if (swap) { - lc_seg.vmsize = BSWAP32(lc_seg.vmsize); - lc_seg.filesize = BSWAP32(lc_seg.filesize); - } - fa->seek(link_edit_offset + 8); - fa->store_buffer((const uint8_t *)&lc_seg, sizeof(LoadCommandSegment)); - } break; - case LC_SEGMENT_64: { - LoadCommandSegment64 lc_seg; - fa->get_buffer((uint8_t *)&lc_seg, sizeof(LoadCommandSegment64)); - if (swap) { - lc_seg.vmsize = BSWAP64(lc_seg.vmsize); - lc_seg.filesize = BSWAP64(lc_seg.filesize); - lc_seg.fileoff = BSWAP64(lc_seg.fileoff); - } - lc_seg.vmsize = end - lc_seg.fileoff; - lc_seg.vmsize += PAD(lc_seg.vmsize, 4096); - lc_seg.filesize = end - lc_seg.fileoff; - if (swap) { - lc_seg.vmsize = BSWAP64(lc_seg.vmsize); - lc_seg.filesize = BSWAP64(lc_seg.filesize); - } - fa->seek(link_edit_offset + 8); - fa->store_buffer((const uint8_t *)&lc_seg, sizeof(LoadCommandSegment64)); - } break; - default: { - ERR_FAIL_V_MSG(false, "MachO: Invalid __LINKEDIT segment type."); - } break; - } - fa->seek(get_signature_offset()); - for (uint64_t i = 0; i < new_size; i++) { - fa->store_8(0x00); - } - return true; -} - -#endif // MODULE_REGEX_ENABLED |