xerub / img4lib Goto Github PK

Since commit d273abb I am unable to build img4lib.
Error :

libvfs/vfs_img4.c:354:8: error: dereferencing pointer to incomplete type ‘RSA {aka struct rsa_st}’
     rsa->n = BN_bin2bn(pkeyComponents[0].data, pkeyComponents[0].length, NULL);

OS/version :

Distributor ID:	Debian
Description:	Debian GNU/Linux 9.9 (stretch)
Release:	9.9
Codename:	stretch

I also tested on Ubuntu 18.04, same error.

hi, I'm collecting various tools and libs at https://github.com/stek29/homebrew-idevice, so I was wondering - what is the current licensing for img4lib?

please help, cannot install on mac os catalina, i get error on
make -C lzfse [CC="cross-cc"] [LD="cross-ld"]
zsh: no matches found: [CC=cross-cc]

if I try to compile with make CORECRYPTO=1
I get the following error:
corecrypto/cc_clear.c:1:1: warning: type specifier missing, defaults to 'int' [-Wimplicit-int] https://developer.apple.com/security/ ^ corecrypto/cc_clear.c:1:6: error: expected ';' after top level declarator https://developer.apple.com/security/ ^ ; 1 warning and 1 error generated. make: *** [corecrypto/cc_clear.o] Error 1

Hello, @xerub
I found your library as a tool for decrypt Ramdisks, Kernel, iBSS, iBEC from iOS firmware. But there were no mentions about relatively fresh iPhone's, only 5 and older. I have iPhone 6S+ with iOS 9.0.2 which is stucked on bootloop due to file modifications on System partition. The problem to deal with is to get access to device System partition and revert file modification. Device was jailbroken, but unfortunately USB SSH does not load before it gets stucked on bootloop.

If I understand correctly it is possible with loading SSH Ramdisk from DFU mode using checkm8. Could you please clarify, how img4lib could be used to get SSH Ramdisk in my case?
Thanks

While compiling lzss.c and img4.c with
gcc -o img4 -L/usr/local/openssl-1.0.2h/lib -I/usr/local/openssl-1.0.2h/include/openssl lzss.o img4.o libDER/DER_Encode.o libDER/DER_Decode.o libDER/oids.o libvfs/vfs_file.o libvfs/vfs_mem.o libvfs/vfs_sub.o libvfs/vfs_enc.o libvfs/vfs_lzss.o libvfs/vfs_lzfse.o libvfs/vfs_img4.o -lcrypto
I get:
Undefined symbols for architecture x86_64: "_lzfse_decode_buffer", referenced from: _lzfse_reopen in vfs_lzfse.o "_lzfse_decode_scratch_size", referenced from: _lzfse_reopen in vfs_lzfse.o "_lzfse_encode_buffer", referenced from: _lzfse_fsync in vfs_lzfse.o "_lzfse_encode_scratch_size", referenced from: _lzfse_fsync in vfs_lzfse.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)
I am on Mac OSX 10.12

Newer IM4Ps have a SEQUENCE attached at the end. When creating an IMG4 the last INTEGER gets changed and makes the IMG4 invalid. This SEQUENCE seems to only be present on A11+ IM4Ps but I have only tested this on an A13 device and restoring this INTEGER from the original IM4P makes the image valid.

1158681:d=1 hl=2 l= 116 prim: OCTET STRING [HEX DUMP]:3072303702010104108B899A083A93F9788381A12B63CDD9BA04204983AD5134850A540BB81264F5DE41A764A0EACF84F0D857B6649800C49004A230370201020410F3B47B6767EBDCDA3E7B5363D80A5A6F0420E67E948423DE8E0294400FF6B5936E1BD6282ADD0F757A88D880450A7803D5AA. <---[KEYBAGS]
1158799:d=1 hl=2 l= 8 cons: SEQUENCE
1158801:d=2 hl=2 l= 1 prim: INTEGER :01
1158804:d=2 hl=2 l= 3 prim: INTEGER :177500 <---[This thing gets changed and it shouldn't]

I've read the documentation and commentary in the project, but I cannot convince compilation to pick up my openssl aes.h headers at /usr/local/Cellar/openssl/1.0.2n/include/openssl/aes.h. I've tweaked every env variable I can imagine to force compilation to recognize this.

Hi, I wanna to patch ibss.im4p, I've already decrypted it and patched.
I do not know how to pack it back to encrypted im4p.

I have downgraded my ssl just to get this thing to compile, and it still spits out errors at me:

ar: `u' modifier ignored since `D' is the default (see `U')
gcc -o img4 -g img4.o lzss.o libDER/DER_Encode.o libDER/DER_Decode.o libDER/oids.o libvfs/vfs_file.o libvfs/vfs_mem.o libvfs/vfs_sub.o libvfs/vfs_enc.o libvfs/vfs_lzss.o libvfs/vfs_lzfse.o libvfs/vfs_img4.o libimg4.a -llzfse -lssl -lcrypto -lcrypto
/usr/bin/ld: libvfs/vfs_img4.o: in function `dovalidate':
/home/ezra/git/img4lib/libvfs/vfs_img4.c:1952: undefined reference to `EVP_cleanup'
/usr/bin/ld: /home/ezra/git/img4lib/libvfs/vfs_img4.c:1954: undefined reference to `CRYPTO_cleanup_all_ex_data'
collect2: error: ld returned 1 exit status
make: *** [Makefile:141: img4] Error 1