kame-minimal: Implement various improvements:
* Make sure to close all protocols before exit. * Use more sophisticated command line argument processing that pushes command line arguments onto stack. * Switch to more readable M1 defines.
This commit is contained in:
parent
32deb0ffaf
commit
cc85d5f8db
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@ -55,6 +55,8 @@ efi_status_t efi_main(efi_handle_t image_handle, struct efi_system_table *system
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struct efi_file_protocol *fin;
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efi_status_t status = rootdir->open(rootdir, &fin, script_file, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY);
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if(status != EFI_SUCCESS) {
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system->boot->close_protocol(root_device, &guid2, image_handle, 0);
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system->boot->close_protocol(image_handle, &guid1, image_handle, 0);
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return status;
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}
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@ -78,8 +80,11 @@ efi_status_t efi_main(efi_handle_t image_handle, struct efi_system_table *system
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{
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fin->read(fin, &size, &c);
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if (size == 0) {
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rootdir->close(fin);
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fin->close(fin);
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rootdir->close(rootdir);
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system->boot->free_pool(command);
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system->boot->close_protocol(root_device, &guid2, image_handle, 0);
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system->boot->close_protocol(image_handle, &guid1, image_handle, 0);
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return EFI_SUCCESS;
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}
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else if(c == '\n') {
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@ -115,7 +120,10 @@ efi_status_t efi_main(efi_handle_t image_handle, struct efi_system_table *system
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efi_status_t status = rootdir->open(rootdir, &fcmd, command, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY);
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if(status != EFI_SUCCESS) {
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system->boot->free_pool(command);
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rootdir->close(fin);
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fin->close(fin);
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rootdir->close(rootdir);
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system->boot->close_protocol(root_device, &guid2, image_handle, 0);
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system->boot->close_protocol(image_handle, &guid1, image_handle, 0);
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return status;
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}
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@ -129,7 +137,7 @@ efi_status_t efi_main(efi_handle_t image_handle, struct efi_system_table *system
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file_size = file_info->file_size;
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system->boot->free_pool(file_info);
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system->boot->allocate_pool(EFI_LOADER_CODE, file_size, (void **) &executable);
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system->boot->allocate_pool(EFI_LOADER_DATA, file_size, (void **) &executable);
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fcmd->read(fcmd, &file_size, executable);
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fcmd->close(fcmd);
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@ -138,7 +146,7 @@ efi_status_t efi_main(efi_handle_t image_handle, struct efi_system_table *system
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device_path->type = HARDWARE_DEVICE_PATH;
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device_path->subtype = MEMORY_MAPPED;
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device_path->length = sizeof(struct efi_device_path_protocol);
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device_path->memory_type = EFI_LOADER_CODE;
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device_path->memory_type = EFI_LOADER_DATA;
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device_path->start_address = (uint64_t) executable;
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device_path->end_address = (uint64_t) executable + file_size;
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device_path[1].type = END_HARDWARE_DEVICE_PATH;
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@ -154,6 +162,7 @@ efi_status_t efi_main(efi_handle_t image_handle, struct efi_system_table *system
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child_image->load_options = command;
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child_image->load_options_size = 2 * (i + 1);
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child_image->device = image->device;
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system->boot->close_protocol(child_ih, &guid1, child_ih, 0);
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/* Run command */
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return_code = system->boot->start_image(child_ih, 0, 0);
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@ -161,7 +170,10 @@ efi_status_t efi_main(efi_handle_t image_handle, struct efi_system_table *system
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if(return_code != 0) {
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system->boot->free_pool(command);
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system->out->output_string(system->out, L"Subprocess error.\r\n");
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rootdir->close(fin);
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fin->close(fin);
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rootdir->close(rootdir);
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system->boot->close_protocol(root_device, &guid2, image_handle, 0);
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system->boot->close_protocol(image_handle, &guid1, image_handle, 0);
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return return_code;
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}
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} while(true);
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@ -110,9 +110,9 @@ DEFINE sub_rbx, 4883EB
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DEFINE sub_rsp, 4883EC
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DEFINE sub_rax,rdx 4829D0
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DEFINE test_esi_esi 85F6
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DEFINE xor_eax_eax 31C0
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DEFINE xor_edx_edx 31D2
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DEFINE xor_esi_esi 31F6
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DEFINE xor_eax,eax 31C0
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DEFINE xor_edx,edx 31D2
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DEFINE xor_esi,esi 31F6
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DEFINE xor_r9,r9 4D31C9
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# Register usage:
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@ -223,7 +223,7 @@ DEFINE xor_r9,r9 4D31C9
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# rewind input file
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push_r11 # Protect r11
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mov_rcx,[rip+DWORD] %fin # Using our input file
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xor_edx_edx # Offset Zero
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xor_edx,edx # Offset Zero
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push_rax # allocate shadow stack space for UEFI function
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push_rax # allocate shadow stack space for UEFI function
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call_[rcx+BYTE] !56 # fin->set_position(fin, 0)
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@ -481,7 +481,7 @@ DEFINE xor_r9,r9 4D31C9
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mov_rcx,[rip+DWORD] %fin # arg1 = fin
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push !1 # size = 1
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mov_rdx,rsb # arg2 = &size
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xor_esi_esi # zero rsi
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xor_esi,esi # zero rsi
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push_rsi # allocate stack
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mov_rsp,r8 # arg3 = &input
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push_rax # allocate shadow stack space for UEFI function
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@ -688,7 +688,7 @@ DEFINE xor_r9,r9 4D31C9
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jmp %terminate
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:Done
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xor_eax_eax # Set exit code 0
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xor_eax,eax # Set exit code 0
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:terminate
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push_rax # save exit code
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@ -3,527 +3,520 @@
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#
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# SPDX-License-Identifier: GPL-3.0-or-later
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DEFINE ADD_RBX_to_R15 4901DF
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DEFINE ADD_RDI_to_R15 4901FF
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DEFINE ADD_RSI_to_RBX 4801F3
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DEFINE ADDI8_RAX 4883C0
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DEFINE ADDI8_RBX 4883C3
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DEFINE ADDI8_RSI 4883C6
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DEFINE ADDI8_RSP 4883C4
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DEFINE CALLI32 E8
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DEFINE CALL_RCX_Immediate8 FF51
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DEFINE CALL_R14_Immediate8 41FF56
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DEFINE CALL_R14_Immediate32 41FF96
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DEFINE CMPI8_AL 3C
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DEFINE COPY_RAX_to_RCX 4889C1
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DEFINE COPY_RBX_to_RCX 4889D9
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DEFINE COPY_RBX_to_RDX 4889DA
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DEFINE COPY_RBX_to_R8 4989D8
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DEFINE COPY_RBX_to_R12 4989DC
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DEFINE COPY_RBP_to_RSP 4889EC
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DEFINE COPY_RDI_to_RCX 4889F9
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DEFINE COPY_RDI_to_R9 4989F9
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DEFINE COPY_RSI_to_R15 4989F7
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DEFINE COPY_RSP_to_RDX 4889E2
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DEFINE COPY_RSP_to_RBP 4889E5
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DEFINE COPY_RSP_to_R8 4989E0
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DEFINE COPY_R8_to_RAX 4C89C0
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DEFINE COPY_R9_to_RCX 4C89C9
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DEFINE COPY_R12_to_RCX 4C89E1
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DEFINE COPY_R12_to_R8 4D89E0
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DEFINE COPY_R13_to_RCX 4C89E9
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DEFINE COPY_R15_to_RCX 4C89F9
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DEFINE COPY_R15_to_R8 4D89F8
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DEFINE COPY_R15_to_R9 4D89F9
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DEFINE INC_RAX 48FFC0
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DEFINE JE8 74
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DEFINE JMP8 EB
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DEFINE JMP32 E9
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DEFINE JNE8 75
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DEFINE JNE32 0F85
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DEFINE LEA_RDX_rel 488D15
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DEFINE LEA_R12_rel 4C8D25
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DEFINE LOAD64_into_RAX_from_Address_RDX_Immediate8 488B42
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DEFINE LOAD64_into_RAX_from_Address_RSP_Immediate8 488B4424
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DEFINE LOAD64_into_RBX_from_Address_RAX_Immediate8 488B58
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DEFINE LOAD64_into_RBX_from_Address_RSP_Immediate8 488B5C24
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DEFINE LOAD64_into_RCX_from_Address_RCX_Immediate8 488B49
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DEFINE LOAD64_into_RCX_from_Address_RSP_Immediate8 488B4C24
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DEFINE LOAD64_into_RDX_from_Address_RCX_Immediate8 488B51
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DEFINE LOAD64_into_R14_from_Address_RDX_Immediate8 4C8B72
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DEFINE LOAD64_into_R12_from_Address_RSP_Immediate8 4C8B6424
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DEFINE LOAD64_into_RDX_rel32 488B15
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DEFINE LOAD64_into_R9_rel32 4C8B0D
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DEFINE LOAD8_AL_from_Address_RBX 8A03
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DEFINE LOADI8_DH B6
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DEFINE LOAD64_rel_RCX 488B0D
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DEFINE LOAD64_rel_RDX 488B15
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DEFINE POP_RAX 58
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DEFINE POP_RBX 5B
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DEFINE POP_RCX 59
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DEFINE POP_RDX 5A
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DEFINE POP_RSI 5E
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DEFINE POP_RDI 5F
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DEFINE POP_R8 4158
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DEFINE POP_R9 4159
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DEFINE POP_R13 415D
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DEFINE POP_R14 415E
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DEFINE POP_R15 415F
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DEFINE PUSH 6A
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DEFINE PUSH_RAX 50
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DEFINE PUSH_RDX 52
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DEFINE PUSH_RBX 53
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DEFINE PUSH_RSP 54
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DEFINE PUSH_RSI 56
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DEFINE PUSH_RDI 57
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DEFINE PUSH_R8 4150
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DEFINE PUSH_R9 4151
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DEFINE RET C3
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DEFINE STORE16_AX_into_Address_RBX 668903
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DEFINE STORE64_R15_into_Address_RAX 4C8938
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DEFINE STORE64_from_RAX_rel32 488905
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DEFINE STORE64_from_RCX_rel32 48890D
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DEFINE STORE64_from_RBX_into_Address_RAX_Immediate8 488958
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DEFINE STORE64_from_RCX_into_Address_RCX_Immediate8 488948
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DEFINE STORE64_from_RSI_into_Address_RAX_Immediate8 488970
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DEFINE STOREI8_into_Address_RAX C600
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DEFINE STOREI16_into_Address_RAX 66C700
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DEFINE STOREI32_into_Address_RAX C700
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DEFINE STOREI16_into_Address_RBX 66C703
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DEFINE STOREI16_into_Address_R15 6641C707
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DEFINE STOREI32_into_Address_R8 49C700
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DEFINE SUBI8_RSP 4883EC
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DEFINE SUB_RDI_from_R15 4929FF
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DEFINE SUB_RSI_from_RBX 4829F3
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DEFINE TEST_AL_AL 84C0
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DEFINE TEST_EAX_EAX 85C0
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DEFINE TEST_ECX_ECX 85C9
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DEFINE TEST_R15_R15 4D85FF
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DEFINE XOR_ECX_ECX 31C9
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DEFINE XOR_EDX_EDX 31D2
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DEFINE XOR_ESI_ESI 31F6
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DEFINE XOR_R8_R8 4D31C0
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DEFINE XOR_R9_R9 4D31C9
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DEFINE XOR_R15_R15 4D31FF
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DEFINE add_rax, 4883C0
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DEFINE add_rsp, 4883C4
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DEFINE add_rbx, 4883C3
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DEFINE add_rsi, 4883C6
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DEFINE add_rbx,rsi 4801F3
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DEFINE add_r15,rbx 4901DF
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DEFINE add_r15,rdi 4901FF
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DEFINE add_rbx,[rdi+BYTE] 48035F
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DEFINE call E8
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DEFINE call_[rcx+BYTE] FF51
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DEFINE call_[r14+BYTE] 41FF56
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DEFINE call_[r14+DWORD] 41FF96
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DEFINE cmp_al, 3C
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DEFINE cmp_rbx,rdx 4839D3
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DEFINE inc_rax 48FFC0
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DEFINE je8 74
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DEFINE jmp8 EB
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DEFINE jmp E9
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DEFINE jne8 75
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DEFINE jne 0F85
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DEFINE lea_rdx,[rip+DWORD] 488D15
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DEFINE lea_r8,[rip+DWORD] 4C8D05
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DEFINE mov_dh, B6
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DEFINE mov_rbp,rsp 4889E5
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DEFINE mov_rbx,rax 4889C3
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DEFINE mov_rbx,rcx 4889CB
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DEFINE mov_rcx,rax 4889C1
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DEFINE mov_rcx,rbx 4889D9
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DEFINE mov_rcx,rdi 4889F9
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DEFINE mov_rcx,r8 4C89C1
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DEFINE mov_rcx,r9 4C89C9
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DEFINE mov_rcx,r12 4C89E1
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DEFINE mov_rcx,r15 4C89F9
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DEFINE mov_rdi,rax 4889C7
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DEFINE mov_rdx,rbx 4889DA
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DEFINE mov_rdx,rsp 4889E2
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DEFINE mov_rsp,rbp 4889EC
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DEFINE mov_r8,rax 4989C0
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DEFINE mov_r8,rbx 4989D8
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DEFINE mov_r8,rdi 4989F8
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DEFINE mov_r8,rsp 4989E0
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DEFINE mov_r8,r15 4D89F8
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DEFINE mov_r9,rax 4989C1
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DEFINE mov_r9,rbx 4989D9
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DEFINE mov_r9,rdi 4989F9
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DEFINE mov_r9,r15 4D89F9
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DEFINE mov_r15,rsi 4989F7
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DEFINE mov_r15,rax 4989C7
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DEFINE mov_[rax], C700
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DEFINE mov_[rbx], C603
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DEFINE mov_[r8], 49C700
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DEFINE mov_[rax],BYTE C600
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DEFINE mov_[rax],WORD 66C700
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DEFINE mov_[rbx],WORD 66C703
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DEFINE mov_[r15],WORD 6641C707
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DEFINE mov_al,[rbx] 8A03
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DEFINE mov_[rax],r15 4C8938
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DEFINE mov_[rbx],ax 668903
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DEFINE mov_rax,[rdx+BYTE] 488B42
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DEFINE mov_rbx,[rdi+BYTE] 488B5F
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DEFINE mov_rcx,[rcx+BYTE] 488B49
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DEFINE mov_rcx,[rdi+BYTE] 488B4F
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DEFINE mov_rdx,[rcx+BYTE] 488B51
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DEFINE mov_r12,[rsp+BYTE] 4C8B6424
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DEFINE mov_r14,[rdx+BYTE] 4C8B72
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DEFINE mov_rcx,[rip+DWORD] 488B0D
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DEFINE mov_rdx,[rip+DWORD] 488B15
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DEFINE mov_r8,[rip+DWORD] 4C8B05
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DEFINE mov_[rax+BYTE],rbx 488958
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DEFINE mov_[rax+BYTE],rcx 488948
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DEFINE mov_[rax+BYTE],rsi 488970
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DEFINE mov_[rip+DWORD],rcx 48890D
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DEFINE mov_[rip+DWORD],rax 488905
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DEFINE pop_rax 58
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DEFINE pop_rcx 59
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DEFINE pop_rdi 5F
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DEFINE pop_rdx 5A
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DEFINE pop_r8 4158
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DEFINE pop_r9 4159
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DEFINE push 6A
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DEFINE push_rax 50
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DEFINE push_rbx 53
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DEFINE push_rdi 57
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DEFINE push_rdx 52
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DEFINE push_rsi 56
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DEFINE push_rsp 54
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DEFINE push_r8 4150
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DEFINE ret C3
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DEFINE sub_rbx, 4883EB
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DEFINE sub_rsp, 4883EC
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DEFINE sub_rbx,rsi 4829F3
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DEFINE sub_r15,rdi 4929FF
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DEFINE test_eax,eax 85C0
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DEFINE test_ecx,ecx 85C9
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DEFINE test_r8,r8 4D85C0
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DEFINE test_r15,r15 4D85FF
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DEFINE xor_ecx,ecx 31C9
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DEFINE xor_edx,edx 31D2
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DEFINE xor_esi,esi 31F6
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DEFINE xor_r8,r8 4D31C0
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DEFINE xor_r9,r9 4D31C9
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DEFINE xor_r15,r15 4D31FF
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# efi_main(void *image_handle, struct efi_system_table *system)
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:_start
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COPY_RSP_to_RBP # save stack pointer
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STORE64_from_RCX_rel32 %image_handle # save image_handle
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LOAD64_into_RAX_from_Address_RDX_Immediate8 !64 # system->out
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STORE64_from_RAX_rel32 %system_out # save system->out
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LOAD64_into_R14_from_Address_RDX_Immediate8 !96 # system->boot
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mov_rbp,rsp # save stack pointer
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mov_[rip+DWORD],rcx %image_handle # save image_handle
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mov_rbx,rcx # save image_handle
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mov_rax,[rdx+BYTE] !64 # system->out
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mov_[rip+DWORD],rax %system_out # save system->out
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mov_r14,[rdx+BYTE] !96 # system->boot
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XOR_ECX_ECX # timeout = 0
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XOR_EDX_EDX # watchdog_code = 0
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XOR_R8_R8 # data_size = 0
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XOR_R9_R9 # watchdog_data = 0
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SUBI8_RSP !32 # allocate shadow stack space for UEFI function
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CALL_R14_Immediate32 %240 # system->boot->set_watchdog_timer
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xor_ecx,ecx # timeout = 0
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xor_edx,edx # watchdog_code = 0
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xor_r8,r8 # data_size = 0
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xor_r9,r9 # watchdog_data = 0
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sub_rsp, !32 # allocate shadow stack space for UEFI function
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call_[r14+DWORD] %240 # system->boot->set_watchdog_timer
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# Open Loaded Image protocol
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PUSH_RAX # allocate stack for image
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COPY_RSP_to_R8 # arg3 = &image
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LOAD64_rel_RDX %LOADED_IMAGE_PROTOCOL_8 # EFI_LOADED_IMAGE_PROTOCOL_GUID (last 64 bits)
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PUSH_RDX # push last 64 bits onto stack
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LOAD64_rel_RDX %LOADED_IMAGE_PROTOCOL # EFI_LOADED_IMAGE_PROTOCOL_GUID (first 64 bits)
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PUSH_RDX # push first 64 bits onto stack
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COPY_RSP_to_RDX # arg2 = &guid
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PUSH !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
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PUSH !0 # arg5 = NULL
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LOAD64_into_R9_rel32 %image_handle # arg4 = image_handle
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COPY_R9_to_RCX # arg1 = image_handle
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SUBI8_RSP !32 # allocate shadow stack space for UEFI function
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CALL_R14_Immediate32 %280 # system->boot->open_protocol(image_handle, &guid, &image, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
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LOAD64_into_RAX_from_Address_RSP_Immediate8 !64 # get_image
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STORE64_from_RAX_rel32 %image # save image
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mov_r9,rbx # arg4 = image_handle
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lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
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mov_rcx,rbx # arg1 = image_handle
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call %open_protocol # open protocol
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mov_rdi,rax # save image
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mov_[rip+DWORD],rax %image # save image
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# Command line args
|
||||
COPY_RAX_to_RCX # copy image to rcx
|
||||
LOAD64_into_RBX_from_Address_RAX_Immediate8 !56 # options = image->load_options
|
||||
|
||||
# Skip application name
|
||||
:loop_options1
|
||||
ADDI8_RBX !2 # ++options
|
||||
LOAD8_AL_from_Address_RBX # *options
|
||||
CMPI8_AL !0x20 # if *options == ' '
|
||||
JE8 !loop_options2 # then jump
|
||||
TEST_AL_AL # if options != 0
|
||||
JNE8 !loop_options1 # then loop
|
||||
|
||||
# Use default file
|
||||
LEA_R12_rel %default_file # Use "kaem.amd64"
|
||||
JMP8 !root_fs # jump
|
||||
|
||||
:loop_options2
|
||||
ADDI8_RBX !2 # ++options
|
||||
COPY_RBX_to_R12 # save input file
|
||||
|
||||
:root_fs
|
||||
# Get root file system
|
||||
PUSH_RAX # allocate stack for rootfs
|
||||
COPY_RSP_to_R8 # arg3 = &rootfs
|
||||
LOAD64_rel_RDX %SIMPLE_FS_PROTOCOL_8 # SIMPLE_FS_PROTOCOL (last 64 bits)
|
||||
PUSH_RDX # push last 64 bits onto stack
|
||||
LOAD64_rel_RDX %SIMPLE_FS_PROTOCOL # SIMPLE_FS_PROTOCOL (first 64 bits)
|
||||
PUSH_RDX # push first 64 bits onto stack
|
||||
COPY_RSP_to_RDX # arg2 = &guid
|
||||
PUSH !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
PUSH !0 # arg5 = NULL
|
||||
LOAD64_into_R9_rel32 %image_handle # arg4 = image_handle
|
||||
LOAD64_into_RCX_from_Address_RCX_Immediate8 !24 # arg1 = root_device = image->device
|
||||
SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
CALL_R14_Immediate32 %280 # system->boot->open_protocol(root_device, &guid, &rootfs, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
LOAD64_into_RCX_from_Address_RSP_Immediate8 !64 # get rootfs
|
||||
mov_r9,rbx # arg4 = image_handle
|
||||
lea_rdx,[rip+DWORD] %SIMPLE_FS_PROTOCOL # guid = &SIMPLE_FS_PROTOCOL
|
||||
mov_rcx,[rdi+BYTE] !24 # arg1 = root_device = image->device
|
||||
mov_[rip+DWORD],rcx %root_device # save root_device
|
||||
call %open_protocol # open protocol
|
||||
mov_rcx,rax # get rootfs
|
||||
|
||||
# Get root directory
|
||||
PUSH_RDX # allocate stack for rootdir
|
||||
COPY_RSP_to_RDX # arg2 = &rootdir
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
CALL_RCX_Immediate8 !8 # rootfs->open_volume(rootfs, &rootdir)
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # deallocate stack
|
||||
POP_R13 # save rootdir
|
||||
lea_rdx,[rip+DWORD] %rootdir # arg2 = &rootdir
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
call_[rcx+BYTE] !8 # rootfs->open_volume(rootfs, &rootdir)
|
||||
pop_rax # deallocate stack
|
||||
pop_rax # deallocate stack
|
||||
|
||||
# Push command line arguments onto stack
|
||||
mov_rbx,[rdi+BYTE] !56 # options = image->load_options
|
||||
mov_rdx,rbx # save beginning of load_options
|
||||
add_rbx,[rdi+BYTE] !48 # go to the end of load_options
|
||||
push !0 # Save end of arguments (NULL) onto stack
|
||||
:loop_options
|
||||
cmp_rbx,rdx # Check if we are done
|
||||
je8 !loop_options_done # We are done
|
||||
sub_rbx, !2 # --options
|
||||
mov_al,[rbx] # *options
|
||||
cmp_al, !0x20 # if *options != ' '
|
||||
jne8 !loop_options # then continue looping
|
||||
mov_[rbx], !0 # zero it
|
||||
add_rbx, !2 # ++options
|
||||
push_rbx # push another argument onto stack
|
||||
jmp8 !loop_options # next argument
|
||||
:loop_options_done
|
||||
|
||||
pop_r8 # get input file
|
||||
test_r8,r8 # Check if argument is specified
|
||||
jne8 !arg_done # then use it
|
||||
# Else use default_file
|
||||
lea_r8,[rip+DWORD] %default_file # Use "kaem.amd64"
|
||||
:arg_done
|
||||
|
||||
# Open file for reading
|
||||
PUSH_RDX # allocate stack for fin
|
||||
COPY_RSP_to_RDX # arg2 = &fin
|
||||
PUSH !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
PUSH !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
POP_R9 # arg4 = EFI_FILE_MODE_READ
|
||||
COPY_R12_to_R8 # arg3 = in
|
||||
COPY_R13_to_RCX # arg1 = rootdir
|
||||
SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
CALL_RCX_Immediate8 !8 # rootdir->open()
|
||||
TEST_EAX_EAX # if status != EFI_SUCCESS
|
||||
JNE32 %abort # then exit without closing file
|
||||
LOAD64_into_R12_from_Address_RSP_Immediate8 !40 # get fin
|
||||
push_rdx # allocate stack for fin
|
||||
mov_rdx,rsp # arg2 = &fin
|
||||
push !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
push !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
pop_r9 # arg4 = EFI_FILE_MODE_READ
|
||||
# arg3 = script
|
||||
mov_rcx,[rip+DWORD] %rootdir # arg1 = rootdir
|
||||
sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
call_[rcx+BYTE] !8 # rootdir->open()
|
||||
test_eax,eax # if status != EFI_SUCCESS
|
||||
jne %abort # then exit without closing file
|
||||
mov_r12,[rsp+BYTE] !40 # get fin
|
||||
|
||||
# Allocate pool for command
|
||||
PUSH_RDX # allocate stack for command
|
||||
COPY_RSP_to_R8 # arg3 = &command
|
||||
XOR_EDX_EDX # zero RDX
|
||||
LOADI8_DH !0x10 # arg2 = 4096 = 0x1000
|
||||
PUSH !2
|
||||
POP_RCX # arg1 = EFI_LOADER_DATA
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
CALL_R14_Immediate8 !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 4096, &commmand)
|
||||
LOAD64_into_RBX_from_Address_RSP_Immediate8 !24 # get command
|
||||
xor_edx,edx # zero RDX
|
||||
mov_dh, !0x10 # arg2 = 4096 = 0x1000
|
||||
call %allocate_pool # allocate memory
|
||||
mov_rbx,rax # get command
|
||||
|
||||
:next_command
|
||||
XOR_ESI_ESI # i = 0
|
||||
XOR_R15_R15 # command_length = 0
|
||||
xor_esi,esi # i = 0
|
||||
xor_r15,r15 # command_length = 0
|
||||
|
||||
:read_command
|
||||
CALLI32 %read_byte # read another byte c
|
||||
call %read_byte # read another byte c
|
||||
|
||||
CMPI8_AL !0xa # if c == '\n'
|
||||
JE8 !read_command_done # then we are done with this command
|
||||
cmp_al, !0xa # if c == '\n'
|
||||
je8 !read_command_done # then we are done with this command
|
||||
|
||||
CMPI8_AL !0x20 # if c == ' '
|
||||
JNE8 !read_command_comments
|
||||
TEST_R15_R15 # and command_length == 0
|
||||
JNE8 !read_command_comments
|
||||
COPY_RSI_to_R15 # command_length = i
|
||||
cmp_al, !0x20 # if c == ' '
|
||||
jne8 !read_command_comments
|
||||
test_r15,r15 # and command_length == 0
|
||||
jne8 !read_command_comments
|
||||
mov_r15,rsi # command_length = i
|
||||
|
||||
:read_command_comments
|
||||
CMPI8_AL !0x23 # if c == '#' then process comment
|
||||
JNE8 !read_command_store_char # else store char
|
||||
cmp_al, !0x23 # if c == '#' then process comment
|
||||
jne8 !read_command_store_char # else store char
|
||||
|
||||
:read_command_skip_comment
|
||||
CALLI32 %read_byte # get another char
|
||||
CMPI8_AL !0xa # if c == '\n'
|
||||
JNE8 !read_command_skip_comment # continue reading until newline
|
||||
call %read_byte # get another char
|
||||
cmp_al, !0xa # if c == '\n'
|
||||
jne8 !read_command_skip_comment # continue reading until newline
|
||||
|
||||
JMP8 !next_command # deal with another line
|
||||
jmp8 !next_command # deal with another line
|
||||
|
||||
:read_command_store_char
|
||||
ADD_RSI_to_RBX # rbx = &command[i]
|
||||
STORE16_AX_into_Address_RBX # command[i] = c
|
||||
SUB_RSI_from_RBX # rbx = &command[0]
|
||||
ADDI8_RSI !2 # location of the next char
|
||||
JMP8 !read_command # continue looping
|
||||
add_rbx,rsi # rbx = &command[i]
|
||||
mov_[rbx],ax # command[i] = c
|
||||
sub_rbx,rsi # rbx = &command[0]
|
||||
add_rsi, !2 # location of the next char
|
||||
jmp8 !read_command # continue looping
|
||||
|
||||
:read_command_done
|
||||
TEST_R15_R15 # if command_length == 0
|
||||
JE8 !next_command # deal with another line
|
||||
test_r15,r15 # if command_length == 0
|
||||
je8 !next_command # deal with another line
|
||||
|
||||
ADD_RSI_to_RBX # rbx = &command[i]
|
||||
STOREI16_into_Address_RBX @0 # command[i] = 0
|
||||
SUB_RSI_from_RBX # rbx = &command[0]
|
||||
add_rbx,rsi # rbx = &command[i]
|
||||
mov_[rbx],WORD @0 # command[i] = 0
|
||||
sub_rbx,rsi # rbx = &command[0]
|
||||
|
||||
ADDI8_RSI !2 # add 2 to get string length with NULL terminator
|
||||
add_rsi, !2 # add 2 to get string length with NULL terminator
|
||||
|
||||
LEA_RDX_rel %prefix # get prefix " +> "
|
||||
CALLI32 %File_Print # print it
|
||||
COPY_RBX_to_RDX # get command
|
||||
CALLI32 %File_Print # print it
|
||||
LEA_RDX_rel %suffix # get suffix "\n\r"
|
||||
CALLI32 %File_Print # print it
|
||||
lea_rdx,[rip+DWORD] %prefix # get prefix " +> "
|
||||
call %File_Print # print it
|
||||
mov_rdx,rbx # get command
|
||||
call %File_Print # print it
|
||||
lea_rdx,[rip+DWORD] %suffix # get suffix "\n\r"
|
||||
call %File_Print # print it
|
||||
|
||||
# Remove command line options
|
||||
ADD_RBX_to_R15 # go to the space separating command and its options
|
||||
STOREI16_into_Address_R15 @0 # zero it to hide command line options
|
||||
add_r15,rbx # go to the space separating command and its options
|
||||
mov_[r15],WORD @0 # zero it to hide command line options
|
||||
|
||||
# Open executable file for reading
|
||||
PUSH_RDX # allocate stack for fcmd
|
||||
COPY_RSP_to_RDX # arg2 = &fcmd
|
||||
PUSH !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
PUSH !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
POP_R9 # arg4 = EFI_FILE_MODE_READ
|
||||
COPY_RBX_to_R8 # arg3 = command
|
||||
COPY_R13_to_RCX # arg1 = rootdir
|
||||
SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
CALL_RCX_Immediate8 !8 # rootdir->open()
|
||||
TEST_EAX_EAX # if status != EFI_SUCCESS
|
||||
JNE32 %print_error # then exit
|
||||
ADDI8_RSP !40 # deallocate stack
|
||||
POP_RDI # get fcmd
|
||||
push_rdx # allocate stack for fcmd
|
||||
mov_rdx,rsp # arg2 = &fcmd
|
||||
push !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
push !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
pop_r9 # arg4 = EFI_FILE_MODE_READ
|
||||
mov_r8,rbx # arg3 = command
|
||||
mov_rcx,[rip+DWORD] %rootdir # arg1 = rootdir
|
||||
sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
call_[rcx+BYTE] !8 # rootdir->open()
|
||||
test_eax,eax # if status != EFI_SUCCESS
|
||||
jne %print_error # then exit
|
||||
add_rsp, !40 # deallocate stack
|
||||
pop_rdi # get fcmd
|
||||
|
||||
# Restore command line arguments
|
||||
STOREI16_into_Address_R15 @0x20 # restore command line options by readding ' '
|
||||
mov_[r15],WORD @0x20 # restore command line options by readding ' '
|
||||
|
||||
# Allocate pool for file_info
|
||||
PUSH_RDX # allocate stack for file_info
|
||||
COPY_RSP_to_R8 # arg3 = &file_info
|
||||
XOR_EDX_EDX # zero RDX
|
||||
LOADI8_DH !0x10 # arg2 = 4096 = 0x1000
|
||||
PUSH !2
|
||||
POP_RCX # arg1 = EFI_LOADER_DATA
|
||||
PUSH_RAX # allocate shadow stack space for UEFI
|
||||
PUSH_RAX # allocate shadow stack space for UEFI
|
||||
PUSH_RAX # allocate shadow stack space for UEFI
|
||||
CALL_R14_Immediate8 !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 4096, &file_info)
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # deallocate stack
|
||||
POP_R9 # get file_info (arg4 for get_info)
|
||||
xor_edx,edx # zero RDX
|
||||
mov_dh, !0x10 # arg2 = 4096 = 0x1000
|
||||
call %allocate_pool # allocate memory
|
||||
mov_r9,rax # get file_info (arg4 for get_info)
|
||||
|
||||
# Get file info
|
||||
PUSH_R9 # save file_info
|
||||
PUSH_RAX # allocate stack for file_size
|
||||
COPY_RSP_to_R8 # arg3 = &file_size
|
||||
STOREI32_into_Address_R8 %0x1000 # file_size = 0x1000
|
||||
LOAD64_rel_RDX %SIMPLE_FS_PROTOCOL_8 # EFI_FILE_INFO_PROTOCOL (last 64 bits)
|
||||
PUSH_RDX # push last 64 bits onto stack
|
||||
LOAD64_rel_RDX %FILE_INFO_PROTOCOL # EFI_FILE_INFO_PROTOCOL (first 64 bits)
|
||||
PUSH_RDX # push first 64 bits onto stack
|
||||
COPY_RSP_to_RDX # arg2 = &guid
|
||||
COPY_RDI_to_RCX # arg1 = fcmd
|
||||
SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
CALL_RCX_Immediate8 !64 # fcmd->get_info(fcmd, &guid, &file_size, file_info)
|
||||
ADDI8_RSP !56 # deallocate stack
|
||||
POP_RCX # restore file_info
|
||||
LOAD64_into_RDX_from_Address_RCX_Immediate8 !8 # get file_size
|
||||
push_rax # save file_info
|
||||
push_rax # allocate stack for file_size
|
||||
mov_r8,rsp # arg3 = &file_size
|
||||
mov_[r8], %0x1000 # file_size = 0x1000
|
||||
lea_rdx,[rip+DWORD] %FILE_INFO_PROTOCOL # arg2 = &EFI_FILE_INFO_PROTOCOL
|
||||
mov_rcx,rdi # arg1 = fcmd
|
||||
sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
call_[rcx+BYTE] !64 # fcmd->get_info(fcmd, &guid, &file_size, file_info)
|
||||
add_rsp, !40 # deallocate stack
|
||||
pop_rcx # restore file_info
|
||||
mov_rdx,[rcx+BYTE] !8 # get file_size
|
||||
|
||||
# Free file_info pool
|
||||
PUSH_RDX # save file_size onto stack
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
CALL_R14_Immediate8 !72 # system->boot->free_pool(file_info)
|
||||
POP_RAX # deallocate stack
|
||||
POP_RDX # restore file_size from stack (arg2 for allocate_pool)
|
||||
push_rdx # save file_size onto stack
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
call_[r14+BYTE] !72 # system->boot->free_pool(file_info)
|
||||
pop_rax # deallocate stack
|
||||
pop_rdx # restore file_size from stack (arg2 for allocate_pool)
|
||||
|
||||
# Allocate pool for executable
|
||||
PUSH_RDX # save file_size onto stack
|
||||
PUSH_RDX # allocate stack for executable
|
||||
COPY_RSP_to_R8 # arg3 = &executable
|
||||
PUSH !2
|
||||
POP_RCX # arg1 = EFI_LOADER_DATA
|
||||
PUSH_RAX # allocate shadow stack space for UEFI
|
||||
PUSH_RAX # allocate shadow stack space for UEFI
|
||||
PUSH_RAX # allocate shadow stack space for UEFI
|
||||
CALL_R14_Immediate8 !64 # system->boot->allocate_pool(EFI_LOADER_DATA, file_size, &executable)
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # deallocate stack
|
||||
POP_R15 # get executable
|
||||
POP_RDX # restore file_size
|
||||
push_rdx # save file_size onto stack
|
||||
call %allocate_pool # allocate memory
|
||||
mov_r15,rax # get executable
|
||||
pop_rdx # restore file_size
|
||||
|
||||
# Load executable into memory
|
||||
PUSH_RDX # save file_size onto stack
|
||||
COPY_R15_to_R8 # arg3 = executable
|
||||
COPY_RSP_to_RDX # arg2 = &file_size
|
||||
COPY_RDI_to_RCX # arg1 = fcmd
|
||||
PUSH_RAX # allocate shadow stack space for UEFI
|
||||
PUSH_RAX # allocate shadow stack space for UEFI
|
||||
PUSH_RAX # allocate shadow stack space for UEFI
|
||||
CALL_RCX_Immediate8 !32 # fcmd->read(fcmd, &file_size, executable)
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # deallocate stack
|
||||
push_rdx # save file_size onto stack
|
||||
mov_r8,r15 # arg3 = executable
|
||||
mov_rdx,rsp # arg2 = &file_size
|
||||
mov_rcx,rdi # arg1 = fcmd
|
||||
push_rax # allocate shadow stack space for UEFI
|
||||
push_rax # allocate shadow stack space for UEFI
|
||||
push_rax # allocate shadow stack space for UEFI
|
||||
call_[rcx+BYTE] !32 # fcmd->read(fcmd, &file_size, executable)
|
||||
pop_rax # deallocate stack
|
||||
pop_rax # deallocate stack
|
||||
pop_rax # deallocate stack
|
||||
|
||||
# Close fcmd
|
||||
PUSH_RAX # allocate stack
|
||||
COPY_RDI_to_RCX # arg1 = fcmd
|
||||
CALL_RCX_Immediate8 !16 # fcmd->close(fcmd)
|
||||
POP_RAX # restore stack
|
||||
push_rax # allocate stack
|
||||
mov_rcx,rdi # arg1 = fcmd
|
||||
call_[rcx+BYTE] !16 # fcmd->close(fcmd)
|
||||
pop_rax # restore stack
|
||||
|
||||
POP_RDI # restore file_size
|
||||
pop_rdi # restore file_size
|
||||
|
||||
# Allocate memory for device_path struct
|
||||
PUSH_RDX # allocate stack for device_path
|
||||
COPY_RSP_to_R8 # arg3 = &device_path
|
||||
PUSH !28 # 4 + sizeof(struct efi_device_path_protocol)
|
||||
POP_RDX # arg2 = 28
|
||||
PUSH !2
|
||||
POP_RCX # arg1 = EFI_LOADER_DATA
|
||||
PUSH_RAX # allocate shadow stack space for UEFI
|
||||
PUSH_RAX # allocate shadow stack space for UEFI
|
||||
PUSH_RAX # allocate shadow stack space for UEFI
|
||||
CALL_R14_Immediate8 !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 28, &device_path)
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # deallocate stack
|
||||
POP_R8 # get device_path
|
||||
push !28 # 4 + sizeof(struct efi_device_path_protocol)
|
||||
pop_rdx # arg2 = 28
|
||||
call %allocate_pool # allocate memory
|
||||
mov_r8,rax # get device_path
|
||||
|
||||
# Initialize struct
|
||||
COPY_R8_to_RAX # Make a pointer to device_path members
|
||||
STOREI8_into_Address_RAX !1 # device_path->type = HARDWARE_DEVICE_PATH
|
||||
INC_RAX # next member
|
||||
STOREI8_into_Address_RAX !3 # device_path->subtype = MEMORY_MAPPED
|
||||
INC_RAX # next member
|
||||
STOREI16_into_Address_RAX @24 # device_path->length = 24
|
||||
ADDI8_RAX !2 # next member
|
||||
STOREI32_into_Address_RAX %1 # device_path->memory_type = EFI_LOADER_CODE
|
||||
ADDI8_RAX !4 # next member
|
||||
STORE64_R15_into_Address_RAX # device_path->start_address = executable
|
||||
ADDI8_RAX !8 # next member
|
||||
ADD_RDI_to_R15 # end_address = executable + file_size
|
||||
STORE64_R15_into_Address_RAX # device_path->end_address = end_address
|
||||
SUB_RDI_from_R15 # restore r15 = executable
|
||||
ADDI8_RAX !8 # next member
|
||||
STOREI8_into_Address_RAX !0x7f # device_path[1].type = END_HARDWARE_DEVICE_PATH
|
||||
INC_RAX # next member
|
||||
STOREI8_into_Address_RAX !0xff # device_path[1].subtype = END_ENTIRE_DEVICE_PATH
|
||||
INC_RAX # next member
|
||||
STOREI16_into_Address_RAX @4 # device_path[1].length = 4
|
||||
mov_[rax],BYTE !1 # device_path->type = HARDWARE_DEVICE_PATH
|
||||
inc_rax # next member
|
||||
mov_[rax],BYTE !3 # device_path->subtype = MEMORY_MAPPED
|
||||
inc_rax # next member
|
||||
mov_[rax],WORD @24 # device_path->length = 24
|
||||
add_rax, !2 # next member
|
||||
mov_[rax], %1 # device_path->memory_type = EFI_LOADER_CODE
|
||||
add_rax, !4 # next member
|
||||
mov_[rax],r15 # device_path->start_address = executable
|
||||
add_rax, !8 # next member
|
||||
add_r15,rdi # end_address = executable + file_size
|
||||
mov_[rax],r15 # device_path->end_address = end_address
|
||||
sub_r15,rdi # restore r15 = executable
|
||||
add_rax, !8 # next member
|
||||
mov_[rax],BYTE !0x7f # device_path[1].type = END_HARDWARE_DEVICE_PATH
|
||||
inc_rax # next member
|
||||
mov_[rax],BYTE !0xff # device_path[1].subtype = END_ENTIRE_DEVICE_PATH
|
||||
inc_rax # next member
|
||||
mov_[rax],WORD @4 # device_path[1].length = 4
|
||||
|
||||
# Load image
|
||||
PUSH_R8 # save device_path
|
||||
PUSH_RAX # allocate stack for child_ih
|
||||
PUSH_RSP # arg6 = &child_ih
|
||||
PUSH_RDI # arg5 = file size
|
||||
COPY_R15_to_R9 # arg4 = executable
|
||||
# arg3 = device_path
|
||||
LOAD64_into_RDX_rel32 %image_handle # arg2 = image_handle
|
||||
XOR_ECX_ECX # arg1 = 0
|
||||
SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
CALL_R14_Immediate32 %200 # system->boot->load_image()
|
||||
ADDI8_RSP !48 # deallocate stack
|
||||
POP_RDI # save child_ih
|
||||
push_r8 # save device_path
|
||||
push_rax # allocate stack for child_ih
|
||||
push_rsp # arg6 = &child_ih
|
||||
push_rdi # arg5 = file size
|
||||
mov_r9,r15 # arg4 = executable
|
||||
# arg3 = device_path
|
||||
mov_rdx,[rip+DWORD] %image_handle # arg2 = image_handle
|
||||
xor_ecx,ecx # arg1 = 0
|
||||
sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
call_[r14+DWORD] %200 # system->boot->load_image()
|
||||
add_rsp, !48 # deallocate stack
|
||||
pop_rdi # save child_ih
|
||||
|
||||
# Free device_path pool
|
||||
POP_RCX # arg1 = device_path
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
CALL_R14_Immediate8 !72 # system->boot->free_pool(device_path)
|
||||
POP_RAX # deallocate stack
|
||||
pop_rcx # arg1 = device_path
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
call_[r14+BYTE] !72 # system->boot->free_pool(device_path)
|
||||
pop_rax # deallocate stack
|
||||
|
||||
# Free executable pool
|
||||
COPY_R15_to_RCX # arg1 = executable
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
CALL_R14_Immediate8 !72 # system->boot->free_pool(executable)
|
||||
POP_RAX # deallocate stack
|
||||
mov_rcx,r15 # arg1 = executable
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
call_[r14+BYTE] !72 # system->boot->free_pool(executable)
|
||||
pop_rax # deallocate stack
|
||||
|
||||
# Open Child Image
|
||||
PUSH_RAX # allocate stack for child_image
|
||||
COPY_RSP_to_R8 # arg3 = &child_image
|
||||
LOAD64_rel_RDX %LOADED_IMAGE_PROTOCOL_8 # EFI_LOADED_IMAGE_PROTOCOL_GUID (last 64 bits)
|
||||
PUSH_RDX # push last 64 bits onto stack
|
||||
LOAD64_rel_RDX %LOADED_IMAGE_PROTOCOL # EFI_LOADED_IMAGE_PROTOCOL_GUID (first 64 bits)
|
||||
PUSH_RDX # push first 64 bits onto stack
|
||||
COPY_RSP_to_RDX # arg2 = &guid
|
||||
PUSH !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
PUSH !0 # arg5 = NULL
|
||||
COPY_RDI_to_R9 # arg4 = child_ih
|
||||
COPY_RDI_to_RCX # arg1 = child_ih
|
||||
SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
CALL_R14_Immediate32 %280 # system->boot->open_protocol(child_ih, &guid, &child_image, child_ih, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
ADDI8_RSP !64 # deallocate stack
|
||||
POP_RAX # get child_image
|
||||
mov_r9,rdi # arg4 = child_ih
|
||||
lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
|
||||
push_rdx # save &LOADED_IMAGE_PROTOCOL
|
||||
mov_rcx,r9 # arg1 = child_ih
|
||||
call %open_protocol # open protocol
|
||||
|
||||
STORE64_from_RBX_into_Address_RAX_Immediate8 !56 # child_image->load_options = command
|
||||
STORE64_from_RSI_into_Address_RAX_Immediate8 !48 # set child_image->load_options_size
|
||||
LOAD64_rel_RCX %image # get image
|
||||
LOAD64_into_RCX_from_Address_RCX_Immediate8 !24 # image->device
|
||||
STORE64_from_RCX_into_Address_RCX_Immediate8 !24 # child_image->device = image->device
|
||||
mov_[rax+BYTE],rbx !56 # child_image->load_options = command
|
||||
mov_[rax+BYTE],rsi !48 # set child_image->load_options_size
|
||||
mov_rcx,[rip+DWORD] %image # get image
|
||||
mov_rcx,[rcx+BYTE] !24 # image->device
|
||||
mov_[rax+BYTE],rcx !24 # child_image->device = image->device
|
||||
|
||||
mov_r8,rdi # arg3 = image_handle
|
||||
pop_rdx # arg2 = &LOADED_IMAGE_PROTOCOL
|
||||
mov_rcx,r8 # arg1 = image_handle
|
||||
call %close_protocol # close protocol
|
||||
|
||||
# Run command
|
||||
XOR_R8_R8 # arg3 = 0 (ExitData)
|
||||
XOR_EDX_EDX # arg2 = 0 (ExitData size)
|
||||
COPY_RDI_to_RCX # arg1 = child_ih
|
||||
PUSH_RAX # allocate shadow stack space for UEFI
|
||||
PUSH_RAX # allocate shadow stack space for UEFI
|
||||
PUSH_RAX # allocate shadow stack space for UEFI
|
||||
CALL_R14_Immediate32 %208 # system->boot->start_image()
|
||||
POP_RCX # deallocate stack
|
||||
POP_RCX # deallocate stack
|
||||
POP_RCX # deallocate stack
|
||||
xor_r8,r8 # arg3 = 0 (ExitData)
|
||||
xor_edx,edx # arg2 = 0 (ExitData size)
|
||||
mov_rcx,rdi # arg1 = child_ih
|
||||
push_rax # allocate shadow stack space for UEFI
|
||||
push_rax # allocate shadow stack space for UEFI
|
||||
push_rax # allocate shadow stack space for UEFI
|
||||
call_[r14+DWORD] %208 # system->boot->start_image()
|
||||
pop_rcx # deallocate stack
|
||||
pop_rcx # deallocate stack
|
||||
pop_rcx # deallocate stack
|
||||
|
||||
TEST_EAX_EAX # check if return code is 0
|
||||
JNE8 !print_error # print error and exit
|
||||
JMP32 %next_command # process another line from kaem script
|
||||
test_eax,eax # check if return code is 0
|
||||
jne8 !print_error # print error and exit
|
||||
jmp %next_command # process another line from kaem script
|
||||
|
||||
:print_error
|
||||
PUSH_RAX # save exit code
|
||||
LEA_RDX_rel %subprocess_error # get error message
|
||||
CALLI32 %File_Print # print it
|
||||
POP_RAX # restore exit code
|
||||
push_rax # save exit code
|
||||
lea_rdx,[rip+DWORD] %subprocess_error # get error message
|
||||
call %File_Print # print it
|
||||
pop_rax # restore exit code
|
||||
|
||||
# Close script file and exit
|
||||
:terminate
|
||||
# Free pool
|
||||
COPY_RBX_to_RCX # arg1 = command
|
||||
PUSH_RAX # save exit code
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
CALL_R14_Immediate8 !72 # system->boot->free_pool(commmand)
|
||||
mov_rcx,rbx # arg1 = command
|
||||
push_rax # save exit code
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
call_[r14+BYTE] !72 # system->boot->free_pool(commmand)
|
||||
|
||||
COPY_R12_to_RCX # arg1 = fin
|
||||
CALL_RCX_Immediate8 !16 # fin->close(fin)
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # restore exit code
|
||||
mov_rcx,r12 # arg1 = fin
|
||||
call_[rcx+BYTE] !16 # fin->close(fin)
|
||||
|
||||
mov_rcx,[rip+DWORD] %rootdir # arg1 = rootdir
|
||||
call_[rcx+BYTE] !16 # rootdir->close(rootdir)
|
||||
|
||||
pop_rax # deallocate stack
|
||||
pop_rax # restore exit code
|
||||
|
||||
# Exit without closing script file
|
||||
:terminate_2
|
||||
mov_r8,[rip+DWORD] %image_handle # arg3 = image_handle
|
||||
push_r8 # save image_handle
|
||||
lea_rdx,[rip+DWORD] %SIMPLE_FS_PROTOCOL # guid = &SIMPLE_FS_PROTOCOL
|
||||
mov_rcx,[rip+DWORD] %root_device # arg1 = root_device
|
||||
call %close_protocol # close protocol
|
||||
|
||||
pop_r8 # arg3 = image_handle
|
||||
lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
|
||||
mov_rcx,r8 # arg1 = image_handle
|
||||
call %close_protocol # close protocol
|
||||
|
||||
:abort
|
||||
COPY_RBP_to_RSP # restore stack
|
||||
RET
|
||||
mov_rsp,rbp # restore stack
|
||||
ret # return to UEFI
|
||||
|
||||
# File_Print function
|
||||
# Receives WCHAR* in RDX
|
||||
:File_Print
|
||||
LOAD64_rel_RCX %system_out # get system_out
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
CALL_RCX_Immediate8 !8 # system->out->output_string(system->out, WCHAR*)
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # deallocate stack
|
||||
RET
|
||||
mov_rcx,[rip+DWORD] %system_out # get system_out
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
call_[rcx+BYTE] !8 # system->out->output_string(system->out, WCHAR*)
|
||||
pop_rax # deallocate stack
|
||||
pop_rax # deallocate stack
|
||||
ret
|
||||
|
||||
# read_byte function
|
||||
# reads a single character
|
||||
:read_byte
|
||||
COPY_R12_to_RCX # arg1 = fin
|
||||
PUSH !1 # size = 1
|
||||
COPY_RSP_to_RDX # arg2 = &size
|
||||
PUSH_RSI # allocate stack
|
||||
COPY_RSP_to_R8 # arg3 = &c
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
CALL_RCX_Immediate8 !32 # fin->read()
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # save c to rax
|
||||
POP_RCX # save size to rcx
|
||||
mov_rcx,r12 # arg1 = fin
|
||||
push !1 # size = 1
|
||||
mov_rdx,rsp # arg2 = &size
|
||||
push_rsi # allocate stack
|
||||
mov_r8,rsp # arg3 = &c
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
call_[rcx+BYTE] !32 # fin->read()
|
||||
pop_rax # deallocate stack
|
||||
pop_rax # deallocate stack
|
||||
pop_rax # deallocate stack
|
||||
pop_rax # save c to rax
|
||||
pop_rcx # save size to rcx
|
||||
|
||||
# If the file ended (0 bytes read) terminate
|
||||
TEST_ECX_ECX # if size = 0
|
||||
JE8 !terminate # then we are done
|
||||
test_ecx,ecx # if size = 0
|
||||
je8 !terminate # then we are done
|
||||
|
||||
RET # return
|
||||
ret # return
|
||||
|
||||
# rcx: handle
|
||||
# rdx: &guid
|
||||
# r9: agent_handle
|
||||
# returns interface
|
||||
:open_protocol
|
||||
push_rax # allocate stack for interface
|
||||
mov_r8,rsp # arg3 = &interface
|
||||
push !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
push !0 # arg5 = NULL
|
||||
sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
call_[r14+DWORD] %280 # system->boot->open_protocol(handle, &guid, &interface, agent_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
add_rsp, !48 # deallocate stack
|
||||
pop_rax # get interface
|
||||
ret
|
||||
|
||||
# rcx: handle
|
||||
# rdx: &guid
|
||||
# r8: agent_handle
|
||||
:close_protocol
|
||||
xor_r9,r9 # arg4 = NULL
|
||||
sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
call_[r14+DWORD] %288 # system->boot->close_protocol(handle, &guid, agent_handle, 0)
|
||||
add_rsp, !32 # deallocate stack
|
||||
ret
|
||||
|
||||
# rdx: number of bytes to allocate
|
||||
# r14: system->boot
|
||||
# returns pointer in rax
|
||||
:allocate_pool
|
||||
push_rdx # allocate stack for pool pointer
|
||||
mov_r8,rsp # arg3 = &pool
|
||||
push !2
|
||||
pop_rcx # arg1 = EFI_LOADER_DATA
|
||||
sub_rsp, !24 # allocate shadow stack space for UEFI
|
||||
call_[r14+BYTE] !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 2048, &pool)
|
||||
add_rsp, !24 # deallocate stack
|
||||
pop_rax # get pool
|
||||
ret
|
||||
|
||||
|
||||
# Protocol GUIDs
|
||||
|
|
@ -531,21 +524,19 @@ DEFINE XOR_R15_R15 4D31FF
|
|||
%0x5b1b31a1
|
||||
@0x9562
|
||||
@0x11d2
|
||||
:LOADED_IMAGE_PROTOCOL_8
|
||||
!0x8e !0x3f !0 !0xa0 !0xc9 !0x69 !0x72 !0x3b
|
||||
|
||||
:SIMPLE_FS_PROTOCOL
|
||||
%0x0964e5b22
|
||||
@0x6459
|
||||
@0x11d2
|
||||
:SIMPLE_FS_PROTOCOL_8
|
||||
!0x8e !0x39 !0 !0xa0 !0xc9 !0x69 !0x72 !0x3b
|
||||
|
||||
:FILE_INFO_PROTOCOL
|
||||
%0x09576e92
|
||||
@0x6d3f
|
||||
@0x11d2
|
||||
# last 64-bits of GUID are identical to SIMPLE_FS_PROTOCOL
|
||||
!0x8e !0x39 !0 !0xa0 !0xc9 !0x69 !0x72 !0x3b
|
||||
|
||||
:default_file
|
||||
"k" "a" "e" "m" "." "a" "m" "d" "6" "4" @0
|
||||
|
|
@ -565,6 +556,12 @@ DEFINE XOR_R15_R15 4D31FF
|
|||
:image
|
||||
%0 %0
|
||||
|
||||
:rootdir
|
||||
%0 %0
|
||||
|
||||
:root_device
|
||||
%0 %0
|
||||
|
||||
:system_out
|
||||
%0 %0
|
||||
|
||||
|
|
|
|||
|
|
@ -10,6 +10,7 @@
|
|||
_start:
|
||||
mov rbp, rsp # save stack pointer
|
||||
mov [rip+image_handle], rcx # save image_handle
|
||||
mov rbx, rcx # save image_handle
|
||||
mov rax, [rdx+64] # system->out
|
||||
mov [rip+system_out], rax # save system->out
|
||||
mov r14, [rdx+96] # system->boot
|
||||
|
|
@ -22,69 +23,53 @@ _start:
|
|||
call [r14+240] # system->boot->set_watchdog_timer
|
||||
|
||||
# Open Loaded Image protocol
|
||||
push rax # allocate stack for image
|
||||
mov r8, rsp # arg3 = &image
|
||||
mov rdx, [rip+LOADED_IMAGE_PROTOCOL+8] # EFI_LOADED_IMAGE_PROTOCOL_GUID (last 64 bits)
|
||||
push rdx # push last 64 bits onto stack
|
||||
mov rdx, [rip+LOADED_IMAGE_PROTOCOL] # EFI_LOADED_IMAGE_PROTOCOL_GUID (first 64 bits)
|
||||
push rdx # push first 64 bits onto stack
|
||||
mov rdx, rsp # arg2 = &guid
|
||||
push 1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
push 0 # arg5 = NULL
|
||||
mov r9, [rip+image_handle] # arg4 = image_handle
|
||||
mov rcx, r9 # arg1 = image_handle
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [r14+280] # system->boot->open_protocol(image_handle, &guid, &image, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
mov rax, [rsp+64] # get image
|
||||
mov r9, rbx # arg4 = image_handle
|
||||
lea rdx, [rip+LOADED_IMAGE_PROTOCOL] # guid = &LOADED_IMAGE_PROTOCOL
|
||||
mov rcx, rbx # arg1 = image_handle
|
||||
call open_protocol # open protocol
|
||||
mov rdi, rax # save image
|
||||
mov [rip+image], rax # save image
|
||||
|
||||
# Command line args
|
||||
mov rcx, rax # copy image to rcx
|
||||
mov rbx, [rax+56] # options = image->load_options
|
||||
|
||||
# Skip application name
|
||||
loop_options1:
|
||||
add rbx, 2 # ++options
|
||||
mov al, [rbx] # *options
|
||||
cmp al, 0x20 # if *options == ' '
|
||||
je loop_options2 # then jump
|
||||
test al, al # if options != 0
|
||||
jne loop_options1 # then loop
|
||||
|
||||
# Use default_file
|
||||
lea r12, [rip+default_file] # Use "kaem.amd64"
|
||||
jmp root_fs # jump
|
||||
|
||||
loop_options2:
|
||||
add rbx, 2 # ++options
|
||||
mov r12, rbx # save script file
|
||||
|
||||
root_fs:
|
||||
# Get root file system
|
||||
push rax # allocate stack for rootfs
|
||||
mov r8, rsp # arg3 = &rootfs
|
||||
mov rdx, [rip+SIMPLE_FS_PROTOCOL+8] # EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID (last 64 bits)
|
||||
push rdx # push last 64 bits onto stack
|
||||
mov rdx, [rip+SIMPLE_FS_PROTOCOL] # EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID (first 64 bits)
|
||||
push rdx # push first 64 bits onto stack
|
||||
mov rdx, rsp # arg2 = &guid
|
||||
push 1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
push 0 # arg5 = NULL
|
||||
mov r9, [rip+image_handle] # arg4 = image_handle
|
||||
mov rcx, [rcx+24] # arg1 = root_device = image->device
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [r14+280] # system->boot->open_protocol(root_device, &guid, &rootfs, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
mov rcx, [rsp+64] # get rootfs
|
||||
mov r9, rbx # arg4 = image_handle
|
||||
lea rdx, [rip+SIMPLE_FS_PROTOCOL] # guid = &SIMPLE_FS_PROTOCOL
|
||||
mov rcx, [rdi+24] # arg1 = root_device = image->device
|
||||
mov [rip+root_device], rcx # save root_device
|
||||
call open_protocol # open protocol
|
||||
mov rcx, rax # get rootfs
|
||||
|
||||
# Get root directory
|
||||
push rdx # allocate stack for rootdir
|
||||
mov rdx, rsp # arg2 = &rootdir
|
||||
lea rdx, [rip+rootdir] # arg2 = &rootdir
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
call [rcx+8] # rootfs->open_volume(rootfs, &rootdir)
|
||||
pop rax # deallocate stack
|
||||
pop rax # deallocate stack
|
||||
pop r13 # save rootdir
|
||||
|
||||
# Push command line arguments onto stack
|
||||
mov rbx, [rdi+56] # options = image->load_options
|
||||
mov rdx, rbx # save beginning of load_options
|
||||
add rbx, [rdi+48] # go to the end of load_options
|
||||
push 0 # Save end of arguments (NULL) onto stack
|
||||
loop_options:
|
||||
cmp rbx, rdx # Check if we are done
|
||||
je loop_options_done # We are done
|
||||
sub rbx, 2 # --options
|
||||
mov al, [rbx] # *options
|
||||
cmp al, 0x20 # if *options != ' '
|
||||
jne loop_options # then continue looping
|
||||
mov BYTE PTR [rbx], 0 # zero it
|
||||
add rbx, 2 # ++options
|
||||
push rbx # push another argument onto stack
|
||||
jmp loop_options # next argument
|
||||
loop_options_done:
|
||||
|
||||
pop r8 # get input file
|
||||
test r8, r8 # Check if argument is specified
|
||||
jne arg_done # then use it
|
||||
# Else use default_file
|
||||
lea r8, [rip+default_file] # Use "kaem.amd64"
|
||||
arg_done:
|
||||
|
||||
# Open file for reading
|
||||
push rdx # allocate stack for fin
|
||||
|
|
@ -92,26 +77,19 @@ root_fs:
|
|||
push 1 # arg5 = EFI_FILE_READ_ONLY
|
||||
push 1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
pop r9 # arg4 = EFI_FILE_MODE_READ
|
||||
mov r8, r12 # arg3 = script
|
||||
mov rcx, r13 # arg1 = rootdir
|
||||
# arg3 = script
|
||||
mov rcx, [rip+rootdir] # arg1 = rootdir
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [rcx+8] # rootdir->open()
|
||||
test eax, eax # if status != EFI_SUCCESS
|
||||
jne abort # then exit without closing file
|
||||
jne terminate_2 # then exit without closing file
|
||||
mov r12, [rsp+40] # get fin
|
||||
|
||||
# Allocate pool for command
|
||||
push rdx # allocate stack for command
|
||||
mov r8, rsp # arg3 = &command
|
||||
xor edx, edx # zero rdx
|
||||
mov dh, 0x10 # arg2 = 4096 = 0x1000
|
||||
push 2
|
||||
pop rcx # arg1 = EFI_LOADER_DATA
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
call [r14+64] # system->boot->allocate_pool(EFI_LOADER_DATA, 4096, &commmand)
|
||||
mov rbx, [rsp+24] # get command
|
||||
call allocate_pool # allocate memory
|
||||
mov rbx, rax # get command
|
||||
|
||||
next_command:
|
||||
xor esi, esi # i = 0
|
||||
|
|
@ -175,7 +153,7 @@ read_command_done:
|
|||
push 1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
pop r9 # arg4 = EFI_FILE_MODE_READ
|
||||
mov r8, rbx # arg3 = command
|
||||
mov rcx, r13 # arg1 = rootdir
|
||||
mov rcx, [rip+rootdir] # arg1 = rootdir
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [rcx+8] # rootdir->open()
|
||||
test eax, eax # if status != EFI_SUCCESS
|
||||
|
|
@ -187,35 +165,21 @@ read_command_done:
|
|||
mov WORD PTR [r15], 0x20 # restore command line options by readding ' '
|
||||
|
||||
# Allocate pool for file_info
|
||||
push rdx # allocate stack for file_info
|
||||
mov r8, rsp # arg3 = &file_info
|
||||
xor edx, edx # zero rdx
|
||||
mov dh, 0x10 # arg2 = 4096 = 0x1000
|
||||
push 2
|
||||
pop rcx # arg1 = EFI_LOADER_DATA
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
call [r14+64] # system->boot->allocate_pool(EFI_LOADER_DATA, 4096, &file_info)
|
||||
pop rax # deallocate stack
|
||||
pop rax # deallocate stack
|
||||
pop rax # deallocate stack
|
||||
pop r9 # get file_info (arg4 for get_info)
|
||||
call allocate_pool # allocate memory
|
||||
mov r9, rax # get file_info (arg4 for get_info)
|
||||
|
||||
# Get file info
|
||||
push r9 # save file_info
|
||||
push rax # save file_info
|
||||
push rax # allocate stack for file_size
|
||||
mov r8, rsp # arg3 = &file_size
|
||||
mov QWORD PTR [r8], 0x1000 # file_size = 0x1000
|
||||
mov rdx, [rip+SIMPLE_FS_PROTOCOL+8] # EFI_FILE_INFO_PROTOCOL (last 64 bits)
|
||||
push rdx # push last 64 bits onto stack
|
||||
mov rdx, [rip+FILE_INFO_PROTOCOL] # EFI_FILE_INFO_PROTOCOL (first 64 bits)
|
||||
push rdx # push first 64 bits onto stack
|
||||
mov rdx, rsp # arg2 = &guid
|
||||
lea rdx, [rip+FILE_INFO_PROTOCOL] # arg2 = &EFI_FILE_INFO_PROTOCOL
|
||||
mov rcx, rdi # arg1 = fcmd
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [rcx+64] # fcmd->get_info(fcmd, &guid, &file_size, file_info)
|
||||
add rsp, 56 # deallocate stack
|
||||
add rsp, 40 # deallocate stack
|
||||
pop rcx # restore file_info
|
||||
mov rdx, [rcx+8] # get file_size
|
||||
|
||||
|
|
@ -228,18 +192,8 @@ read_command_done:
|
|||
|
||||
# Allocate pool for executable
|
||||
push rdx # save file_size onto stack
|
||||
push rdx # allocate stack for executable
|
||||
mov r8, rsp # arg3 = &executable
|
||||
push 2
|
||||
pop rcx # arg1 = EFI_LOADER_DATA
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
call [r14+64] # system->boot->allocate_pool(EFI_LOADER_DATA, file_size, &executable)
|
||||
pop rax # deallocate stack
|
||||
pop rax # deallocate stack
|
||||
pop rax # deallocate stack
|
||||
pop r15 # get executable
|
||||
call allocate_pool # allocate memory
|
||||
mov r15, rax # get executable
|
||||
pop rdx # restore file_size
|
||||
|
||||
# Load executable into memory
|
||||
|
|
@ -264,23 +218,12 @@ read_command_done:
|
|||
pop rdi # restore file_size
|
||||
|
||||
# Allocate memory for device_path struct
|
||||
push rdx # allocate stack for device_path
|
||||
mov r8, rsp # arg3 = &device_path
|
||||
push 28 # 4 + sizeof(struct efi_device_path_protocol)
|
||||
pop rdx # arg2 = 28
|
||||
push 2
|
||||
pop rcx # arg1 = EFI_LOADER_DATA
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
call [r14+64] # system->boot->allocate_pool(EFI_LOADER_DATA, 28, &device_path)
|
||||
pop rax # deallocate stack
|
||||
pop rax # deallocate stack
|
||||
pop rax # deallocate stack
|
||||
pop r8 # get device_path
|
||||
call allocate_pool # allocate memory
|
||||
mov r8, rax # get device_path
|
||||
|
||||
# Initialize struct
|
||||
mov rax, r8 # Make a pointer to device_path members
|
||||
mov BYTE PTR [rax], 1 # device_path->type = HARDWARE_DEVICE_PATH
|
||||
inc rax # next member
|
||||
mov BYTE PTR [rax], 3 # device_path->subtype = MEMORY_MAPPED
|
||||
|
|
@ -328,21 +271,11 @@ read_command_done:
|
|||
pop rax # deallocate stack
|
||||
|
||||
# Open Child Image
|
||||
push rax # allocate stack for child_image
|
||||
mov r8, rsp # arg3 = &child_image
|
||||
mov rdx, [rip+LOADED_IMAGE_PROTOCOL+8] # EFI_LOADED_IMAGE_PROTOCOL_GUID (last 64 bits)
|
||||
push rdx # push last 64 bits onto stack
|
||||
mov rdx, [rip+LOADED_IMAGE_PROTOCOL] # EFI_LOADED_IMAGE_PROTOCOL_GUID (first 64 bits)
|
||||
push rdx # push first 64 bits onto stack
|
||||
mov rdx, rsp # arg2 = &guid
|
||||
push 1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
push 0 # arg5 = NULL
|
||||
mov r9, rdi # arg4 = child_ih
|
||||
mov rcx, rdi # arg1 = child_ih
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [r14+280] # system->boot->open_protocol(child_ih, &guid, &child_image, child_ih, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
add rsp, 64 # deallocate stack
|
||||
pop rax # get child_image
|
||||
lea rdx, [rip+LOADED_IMAGE_PROTOCOL] # guid = &LOADED_IMAGE_PROTOCOL
|
||||
push rdx # save &LOADED_IMAGE_PROTOCOL
|
||||
mov rcx, r9 # arg1 = child_ih
|
||||
call open_protocol # open protocol
|
||||
|
||||
mov [rax+56], rbx # child_image->load_options = command
|
||||
mov [rax+48], rsi # set child_image->load_options_size
|
||||
|
|
@ -350,6 +283,11 @@ read_command_done:
|
|||
mov rcx, [rcx+24] # image->device
|
||||
mov [rax+24], rcx # child_image->device = image->device
|
||||
|
||||
mov r8, rdi # arg3 = image_handle
|
||||
pop rdx # arg2 = &LOADED_IMAGE_PROTOCOL
|
||||
mov rcx, r8 # arg1 = image_handle
|
||||
call close_protocol # close protocol
|
||||
|
||||
# Run command
|
||||
xor r8, r8 # arg3 = 0 (ExitData)
|
||||
xor edx, edx # arg2 = 0 (ExitData size)
|
||||
|
|
@ -382,13 +320,29 @@ terminate:
|
|||
|
||||
mov rcx, r12 # arg1 = fin
|
||||
call [rcx+16] # fin->close(fin)
|
||||
|
||||
mov rcx, [rip+rootdir] # arg1 = rootdir
|
||||
call [rcx+16] # rootdir->close(rootdir)
|
||||
|
||||
pop rax # deallocate stack
|
||||
pop rax # restore exit code
|
||||
|
||||
# Exit without closing script file
|
||||
terminate_2:
|
||||
mov r8, [rip+image_handle] # arg3 = image_handle
|
||||
push r8 # save image_handle
|
||||
lea rdx, [rip+SIMPLE_FS_PROTOCOL] # guid = &SIMPLE_FS_PROTOCOL
|
||||
mov rcx, [rip+root_device] # arg1 = root_device
|
||||
call close_protocol # close protocol
|
||||
|
||||
pop r8 # arg3 = image_handle
|
||||
lea rdx, [rip+LOADED_IMAGE_PROTOCOL] # guid = &LOADED_IMAGE_PROTOCOL
|
||||
mov rcx, r8 # arg1 = image_handle
|
||||
call close_protocol # close protocol
|
||||
|
||||
abort:
|
||||
mov rsp, rbp # restore stack
|
||||
ret
|
||||
ret # return to UEFI
|
||||
|
||||
# File_Print function
|
||||
# Receives WCHAR* in RDX
|
||||
|
|
@ -425,6 +379,45 @@ read_byte:
|
|||
|
||||
ret
|
||||
|
||||
# rcx: handle
|
||||
# rdx: &guid
|
||||
# r9: agent_handle
|
||||
# returns interface
|
||||
open_protocol:
|
||||
push rax # allocate stack for interface
|
||||
mov r8, rsp # arg3 = &interface
|
||||
push 1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
push 0 # arg5 = NULL
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [r14+280] # system->boot->open_protocol(handle, &guid, &interface, agent_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
add rsp, 48 # deallocate stack
|
||||
pop rax # get interface
|
||||
ret
|
||||
|
||||
# rcx: handle
|
||||
# rdx: &guid
|
||||
# r8: agent_handle
|
||||
close_protocol:
|
||||
xor r9, r9 # arg4 = NULL
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [r14+288] # system->boot->close_protocol(handle, &guid, agent_handle, 0)
|
||||
add rsp, 32 # deallocate stack
|
||||
ret
|
||||
|
||||
# rdx: number of bytes to allocate
|
||||
# r14: system->boot
|
||||
# returns pointer in rax
|
||||
allocate_pool:
|
||||
push rdx # allocate stack for pool pointer
|
||||
mov r8, rsp # arg3 = &pool
|
||||
push 2
|
||||
pop rcx # arg1 = EFI_LOADER_DATA
|
||||
sub rsp, 24 # allocate shadow stack space for UEFI
|
||||
call [r14+64] # system->boot->allocate_pool(EFI_LOADER_DATA, 2048, &pool)
|
||||
add rsp, 24 # deallocate stack
|
||||
pop rax # get pool
|
||||
ret
|
||||
|
||||
# Protocol GUIDs
|
||||
LOADED_IMAGE_PROTOCOL:
|
||||
.long 0x5b1b31a1
|
||||
|
|
@ -442,7 +435,7 @@ FILE_INFO_PROTOCOL:
|
|||
.long 0x09576e92
|
||||
.short 0x6d3f
|
||||
.short 0x11d2
|
||||
# last 64-bits of GUID are identical to SIMPLE_FS_PROTOCOL
|
||||
.byte 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b
|
||||
|
||||
default_file:
|
||||
.byte 0x6B, 0, 0x61, 0, 0x65, 0, 0x6D, 0, 0x2E, 0
|
||||
|
|
@ -463,5 +456,11 @@ image_handle:
|
|||
image:
|
||||
.long 0, 0
|
||||
|
||||
rootdir:
|
||||
.long 0, 0
|
||||
|
||||
root_device:
|
||||
.long 0, 0
|
||||
|
||||
system_out:
|
||||
.long 0, 0
|
||||
|
|
|
|||
|
|
@ -5,442 +5,432 @@
|
|||
|
||||
# efi_main(void *image_handle, struct efi_system_table *system)
|
||||
:_start
|
||||
4889E5 ; COPY_RSP_to_RBP # save stack pointer
|
||||
48890D %image_handle ; STORE64_from_RCX_rel32 %image_handle # save image_handle
|
||||
488B42 40 ; LOAD64_into_RAX_from_Address_RDX_Immediate8 !64 # system->out
|
||||
488905 %system_out ; STORE64_from_RAX_rel32 %system_out # save system->out
|
||||
4C8B72 60 ; LOAD64_into_R14_from_Address_RDX_Immediate8 !96 # system->boot
|
||||
4889E5 ; mov_rbp,rsp # save stack pointer
|
||||
48890D %image_handle ; mov_[rip+DWORD],rcx %image_handle # save image_handle
|
||||
4889CB ; mov_rbx,rcx # save image_handle
|
||||
488B42 40 ; mov_rax,[rdx+BYTE] !64 # system->out
|
||||
488905 %system_out ; mov_[rip+DWORD],rax %system_out # save system->out
|
||||
4C8B72 60 ; mov_r14,[rdx+BYTE] !96 # system->boot
|
||||
|
||||
31C9 ; XOR_ECX_ECX # timeout = 0
|
||||
31D2 ; XOR_EDX_EDX # watchdog_code = 0
|
||||
4D31C0 ; XOR_R8_R8 # data_size = 0
|
||||
4D31C9 ; XOR_R9_R9 # watchdog_data = 0
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 F0000000 ; CALL_R14_Immediate32 %240 # system->boot->set_watchdog_timer
|
||||
31C9 ; xor_ecx,ecx # timeout = 0
|
||||
31D2 ; xor_edx,edx # watchdog_code = 0
|
||||
4D31C0 ; xor_r8,r8 # data_size = 0
|
||||
4D31C9 ; xor_r9,r9 # watchdog_data = 0
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 F0000000 ; call_[r14+DWORD] %240 # system->boot->set_watchdog_timer
|
||||
|
||||
# Open Loaded Image protocol
|
||||
50 ; PUSH_RAX # allocate stack for image
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &image
|
||||
488B15 %LOADED_IMAGE_PROTOCOL_8 ; LOAD64_rel_RDX %LOADED_IMAGE_PROTOCOL_8 # EFI_LOADED_IMAGE_PROTOCOL_GUID (last 64 bits)
|
||||
52 ; PUSH_RDX # push last 64 bits onto stack
|
||||
488B15 %LOADED_IMAGE_PROTOCOL ; LOAD64_rel_RDX %LOADED_IMAGE_PROTOCOL # EFI_LOADED_IMAGE_PROTOCOL_GUID (first 64 bits)
|
||||
52 ; PUSH_RDX # push first 64 bits onto
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &guid
|
||||
6A 01 ; PUSH !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
6A 00 ; PUSH !0 # arg5 = NULL
|
||||
4C8B0D %image_handle ; LOAD64_into_R9_rel32 %image_handle # arg4 = image_handle
|
||||
4C89C9 ; COPY_R9_to_RCX # arg1 = image_handle
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 18010000 ; CALL_R14_Immediate32 %280 # system->boot->open_protocol(image_handle, &guid, &image, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
488B4424 40 ; LOAD64_into_RAX_from_Address_RSP_Immediate8 !64 # get_image
|
||||
488905 %image ; STORE64_from_RAX_rel32 %image # save image
|
||||
4989D9 ; mov_r9,rbx # arg4 = image_handle
|
||||
488D15 %LOADED_IMAGE_PROTOCOL ; lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
|
||||
4889D9 ; mov_rcx,rbx # arg1 = image_handle
|
||||
E8 %open_protocol ; call %open_protocol # open protocol
|
||||
4889C7 ; mov_rdi,rax # save image
|
||||
488905 %image ; mov_[rip+DWORD],rax %image # save image
|
||||
|
||||
# Command line args
|
||||
4889C1 ; COPY_RAX_to_RCX # copy image to rcx
|
||||
488B58 38 ; LOAD64_into_RBX_from_Address_RAX_Immediate8 !56 # options = image->load_options
|
||||
|
||||
# Skip application name
|
||||
:loop_options1
|
||||
4883C3 02 ; ADDI8_RBX !2 # ++options
|
||||
8A03 ; LOAD8_AL_from_Address_RBX # *options
|
||||
3C 20 ; CMPI8_AL !0x20 # if *options == ' '
|
||||
74 !loop_options2 ; JE8 !loop_options2 # then jump
|
||||
84C0 ; TEST_AL_AL # if options != 0
|
||||
75 !loop_options1 ; JNE8 !loop_options1 # then loop
|
||||
|
||||
# Use default file
|
||||
4C8D25 %default_file ; LEA_R12_rel %default_file # Use "kaem.amd64"
|
||||
EB !root_fs ; JMP8 !root_fs # jump
|
||||
|
||||
:loop_options2
|
||||
4883C3 02 ; ADDI8_RBX !2 # ++options
|
||||
4989DC ; COPY_RBX_to_R12 # save input file
|
||||
|
||||
:root_fs
|
||||
# Get root file system
|
||||
50 ; PUSH_RAX # allocate stack for rootfs
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &rootfs
|
||||
488B15 %SIMPLE_FS_PROTOCOL_8 ; LOAD64_rel_RDX %SIMPLE_FS_PROTOCOL_8 # EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID (last 64 bits)
|
||||
52 ; PUSH_RDX # push last 64 bits onto stack
|
||||
488B15 %SIMPLE_FS_PROTOCOL ; LOAD64_rel_RDX %SIMPLE_FS_PROTOCOL # EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID (first 64 bits)
|
||||
52 ; PUSH_RDX # push first 64 bits onto stack
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &guid
|
||||
6A 01 ; PUSH !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
6A 00 ; PUSH !0 # arg5 = NULL
|
||||
4C8B0D %image_handle ; LOAD64_into_R9_rel32 %image_handle # arg4 = image_handle
|
||||
488B49 18 ; LOAD64_into_RCX_from_Address_RCX_Immediate8 !24 # arg1 = root_device = image->device
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 18010000 ; CALL_R14_Immediate32 %280 # system->boot->open_protocol(root_device, &guid, &rootfs, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
488B4C24 40 ; LOAD64_into_RCX_from_Address_RSP_Immediate8 !64 # get rootfs
|
||||
4989D9 ; mov_r9,rbx # arg4 = image_handle
|
||||
488D15 %SIMPLE_FS_PROTOCOL ; lea_rdx,[rip+DWORD] %SIMPLE_FS_PROTOCOL # guid = &SIMPLE_FS_PROTOCOL
|
||||
488B4F 18 ; mov_rcx,[rdi+BYTE] !24 # arg1 = root_device = image->device
|
||||
48890D %root_device ; mov_[rip+DWORD],rcx %root_device # save root_device
|
||||
E8 %open_protocol ; call %open_protocol # open protocol
|
||||
4889C1 ; mov_rcx,rax # get rootfs
|
||||
|
||||
# Get root directory
|
||||
52 ; PUSH_RDX # allocate stack for rootdir
|
||||
4889E2 ; COPY_RSP_to_RDX # arg3 = &rootdir
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; CALL_RCX_Immediate8 !8 # rootfs->open_volume(rootfs, &rootdir)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
415D ; POP_R13 # save rootdir
|
||||
488D15 %rootdir ; lea_rdx,[rip+DWORD] %rootdir # arg2 = &rootdir
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function space for UEFI function
|
||||
FF51 08 ; call_[rcx+BYTE] !8 # rootfs->open_volume(rootfs, &rootdir)
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
|
||||
# Push command line arguments onto stack
|
||||
488B5F 38 ; mov_rbx,[rdi+BYTE] !56 # options = image->load_options
|
||||
4889DA ; mov_rdx,rbx # save beginning of load_options
|
||||
48035F 30 ; add_rbx,[rdi+BYTE] !48 # go to the end of load_options
|
||||
6A 00 ; push !0 # Save end of arguments (NULL) onto stack
|
||||
:loop_options
|
||||
4839D3 ; cmp_rbx,rdx # Check if we are done
|
||||
74 !loop_options_done ; je8 !loop_options_done # We are done
|
||||
4883EB 02 ; sub_rbx, !2 # --options
|
||||
8A03 ; mov_al,[rbx] # *options
|
||||
3C 20 ; cmp_al, !0x20 # if *options != ' '
|
||||
75 !loop_options ; jne8 !loop_options # then continue looping
|
||||
C603 00 ; mov_[rbx], !0 # zero it
|
||||
4883C3 02 ; add_rbx, !2 # ++options
|
||||
53 ; push_rbx # push another argument onto stack
|
||||
EB !loop_options ; jmp8 !loop_options # next argument
|
||||
:loop_options_done
|
||||
|
||||
4158 ; pop_r8 # get input file
|
||||
4D85C0 ; test_r8,r8 # Check if argument is specified
|
||||
75 !arg_done ; jne8 !arg_done # then use it
|
||||
# Else use default_file
|
||||
4C8D05 %default_file ; lea_r8,[rip+DWORD] %default_file # Use "kaem.amd64"
|
||||
:arg_done
|
||||
|
||||
# Open file for reading
|
||||
52 ; PUSH_RDX # allocate stack for fin
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &fin
|
||||
6A 01 ; PUSH !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
6A 01 ; PUSH !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
4159 ; POP_R9 # arg4 = EFI_FILE_MODE_READ
|
||||
4D89E0 ; COPY_R12_to_R8 # arg3 = in
|
||||
4C89E9 ; COPY_R13_to_RCX # arg1 = rootdir
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; CALL_RCX_Immediate8 !8 # rootdir->open()
|
||||
85C0 ; TEST_EAX_EAX # if status != EFI_SUCCESS
|
||||
0F85 %abort ; JNE32 %abort # then exit without closing file
|
||||
4C8B6424 28 ; LOAD64_into_R12_from_Address_RSP_Immediate8 !40 # get fin
|
||||
52 ; push_rdx # allocate stack for fin
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &fin
|
||||
6A 01 ; push !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
6A 01 ; push !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
4159 ; pop_r9 # arg4 = EFI_FILE_MODE_READ
|
||||
# arg3 = in
|
||||
488B0D %rootdir ; mov_rcx,[rip+DWORD] %rootdir # arg1 = rootdir
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; call_[rcx+BYTE] !8 # rootdir->open()
|
||||
85C0 ; test_eax,eax # if status != EFI_SUCCESS
|
||||
0F85 %abort ; jne %abort # then exit without closing file
|
||||
4C8B6424 28 ; mov_r12,[rsp+BYTE] !40 # get fin
|
||||
|
||||
# Allocate pool for command
|
||||
52 ; PUSH_RDX # allocate stack for command
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &command
|
||||
31D2 ; XOR_EDX_EDX # zero RDX
|
||||
B6 10 ; LOADI8_DH !0x10 # arg2 = 4096 = 0x1000
|
||||
6A 02 ; PUSH !2
|
||||
59 ; POP_RCX # arg1 = EFI_LOADER_DATA
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF56 40 ; CALL_R14_Immediate8 !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 4096, &commmand)
|
||||
488B5C24 18 ; LOAD64_into_RBX_from_Address_RSP_Immediate8 !24 # get command
|
||||
31D2 ; xor_edx,edx # zero RDX
|
||||
B6 10 ; mov_dh, !0x10 # arg2 = 4096 = 0x1000
|
||||
E8 %allocate_pool ; call %allocate_pool # allocate memory
|
||||
4889C3 ; mov_rbx,rax # get command
|
||||
|
||||
:next_command
|
||||
31F6 ; XOR_ESI_ESI # i = 0
|
||||
4D31FF ; XOR_R15_R15 # command_length = 0
|
||||
31F6 ; xor_esi,esi # i = 0
|
||||
4D31FF ; xor_r15,r15 # command_length = 0
|
||||
|
||||
:read_command
|
||||
E8 %read_byte ; CALLI32 %read_byte # read another byte c
|
||||
E8 %read_byte ; call %read_byte # read another byte c
|
||||
|
||||
3C 0A ; CMPI8_AL !0xa # if c == '\n'
|
||||
74 !read_command_done ; JE8 !read_command_done # then we are done with this command
|
||||
3C 0A ; cmp_al, !0xa # if c == '\n'
|
||||
74 !read_command_done ; je8 !read_command_done # then we are done with this command command
|
||||
|
||||
3C 20 ; CMPI8_AL !0x20 # if c == ' '
|
||||
75 !read_command_comments ; JNE8 !read_command_comments
|
||||
4D85FF ; TEST_R15_R15 # and command_length == 0
|
||||
75 !read_command_comments ; JNE8 !read_command_comments
|
||||
4989F7 ; COPY_RSI_to_R15 # command_length = i
|
||||
3C 20 ; cmp_al, !0x20 # if c == ' '
|
||||
75 !read_command_comments ; jne8 !read_command_comments
|
||||
4D85FF ; test_r15,r15 # and command_length == 0
|
||||
75 !read_command_comments ; jne8 !read_command_comments
|
||||
4989F7 ; mov_r15,rsi # command_length = i
|
||||
|
||||
:read_command_comments
|
||||
3C 23 ; CMPI8_AL !0x23 # if c == '#' then process comment
|
||||
75 !read_command_store_char ; JNE8 !read_command_store_char # else store char
|
||||
3C 23 ; cmp_al, !0x23 # if c == '#' then process comment
|
||||
75 !read_command_store_char ; jne8 !read_command_store_char # else store char
|
||||
|
||||
:read_command_skip_comment
|
||||
E8 %read_byte ; CALLI32 %read_byte # get another char
|
||||
3C 0A ; CMPI8_AL !0xa # if c == '\n'
|
||||
75 !read_command_skip_comment ; JNE8 !read_command_skip_comment # continue reading until newline
|
||||
E8 %read_byte ; call %read_byte # get another char
|
||||
3C 0A ; cmp_al, !0xa # if c == '\n'
|
||||
75 !read_command_skip_comment ; jne8 !read_command_skip_comment # continue reading until newline
|
||||
|
||||
EB !next_command ; JMP8 !next_command # deal with another line
|
||||
EB !next_command ; jmp8 !next_command # deal with another line
|
||||
|
||||
:read_command_store_char
|
||||
4801F3 ; ADD_RSI_to_RBX # rbx = &command[i]
|
||||
668903 ; STORE16_AX_into_Address_RBX # command[i] = c
|
||||
4829F3 ; SUB_RSI_from_RBX # rbx = &command[0]
|
||||
4883C6 02 ; ADDI8_RSI !2 # location of the next char
|
||||
EB !read_command ; JMP8 !read_command # continue looping
|
||||
4801F3 ; add_rbx,rsi # rbx = &command[i]
|
||||
668903 ; mov_[rbx],ax # command[i] = c
|
||||
4829F3 ; sub_rbx,rsi # rbx = &command[0]
|
||||
4883C6 02 ; add_rsi, !2 # location of the next char
|
||||
EB !read_command ; jmp8 !read_command # continue looping
|
||||
|
||||
:read_command_done
|
||||
4D85FF ; TEST_R15_R15 # if command_length == 0
|
||||
74 !next_command ; JE8 !next_command # deal with another line
|
||||
4D85FF ; test_r15,r15 # if command_length == 0
|
||||
74 !next_command ; je8 !next_command # deal with another line
|
||||
|
||||
4801F3 ; ADD_RSI_to_RBX # rbx = &command[i]
|
||||
66C703 0000 ; STOREI16_into_Address_RBX @0 # command[i] = 0
|
||||
4829F3 ; SUB_RSI_from_RBX # rbx = &command[0]
|
||||
4801F3 ; add_rbx,rsi # rbx = &command[i]
|
||||
66C703 0000 ; mov_[rbx],WORD @0 # command[i] = 0
|
||||
4829F3 ; sub_rbx,rsi # rbx = &command[0]
|
||||
|
||||
4883C6 02 ; ADDI8_RSI !2 # add 2 to get string length with NULL terminator
|
||||
4883C6 02 ; add_rsi, !2 # add 2 to get string length with NULL terminator
|
||||
|
||||
488D15 %prefix ; LEA_RDX_rel %prefix # get prefix " +> "
|
||||
E8 %File_Print ; CALLI32 %File_Print # print it
|
||||
4889DA ; COPY_RBX_to_RDX # get command
|
||||
E8 %File_Print ; CALLI32 %File_Print # print it
|
||||
488D15 %suffix ; LEA_RDX_rel %suffix # get suffix "\n\r"
|
||||
E8 %File_Print ; CALLI32 %File_Print # print it
|
||||
488D15 %prefix ; lea_rdx,[rip+DWORD] %prefix # get prefix " +> "
|
||||
E8 %File_Print ; call %File_Print # print it
|
||||
4889DA ; mov_rdx,rbx # get command
|
||||
E8 %File_Print ; call %File_Print # print it
|
||||
488D15 %suffix ; lea_rdx,[rip+DWORD] %suffix # get suffix "\n\r"
|
||||
E8 %File_Print ; call %File_Print # print it
|
||||
|
||||
# Remove command line options
|
||||
4901DF ; ADD_RBX_to_R15 # go to the space separating command and its options
|
||||
6641C707 0000 ; STOREI16_into_Address_R15 @0 # zero it to hide command line options
|
||||
4901DF ; add_r15,rbx # go to the space separating command and its options
|
||||
6641C707 0000 ; mov_[r15],WORD @0 # zero it to hide command line options
|
||||
|
||||
# Open executable file for reading
|
||||
52 ; PUSH_RDX # allocate stack for fcmd
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &fcmd
|
||||
6A 01 ; PUSH !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
6A 01 ; PUSH !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
4159 ; POP_R9 # arg4 = EFI_FILE_MODE_READ
|
||||
4989D8 ; COPY_RBX_to_R8 # arg3 = command
|
||||
4C89E9 ; COPY_R13_to_RCX # arg1 = rootdir
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; CALL_RCX_Immediate8 !8 # rootdir->open()
|
||||
85C0 ; TEST_EAX_EAX # if status != EFI_SUCCESS
|
||||
0F85 %print_error ; JNE32 %print_error # then exit
|
||||
4883C4 28 ; ADDI8_RSP !40 # deallocate stack
|
||||
5F ; POP_RDI # get fcmd
|
||||
52 ; push_rdx # allocate stack for fcmd
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &fcmd
|
||||
6A 01 ; push !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
6A 01 ; push !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
4159 ; pop_r9 # arg4 = EFI_FILE_MODE_READ
|
||||
4989D8 ; mov_r8,rbx # arg3 = command
|
||||
488B0D %rootdir ; mov_rcx,[rip+DWORD] %rootdir # arg1 = rootdir
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; call_[rcx+BYTE] !8 # rootdir->open()
|
||||
85C0 ; test_eax,eax # if status != EFI_SUCCESS
|
||||
0F85 %print_error ; jne %print_error # then exit
|
||||
4883C4 28 ; add_rsp, !40 # deallocate stack
|
||||
5F ; pop_rdi # get fcmd
|
||||
|
||||
# Restore command line arguments
|
||||
6641C707 2000 ; STOREI16_into_Address_R15 @0x20 # restore command line options by readding ' '
|
||||
6641C707 2000 ; mov_[r15],WORD @0x20 # restore command line options by readding ' '
|
||||
|
||||
# Allocate pool for file_info
|
||||
52 ; PUSH_RDX # allocate stack for file_info
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &file_info
|
||||
31D2 ; XOR_EDX_EDX # zero RDX
|
||||
B6 10 ; LOADI8_DH !0x10 # arg2 = 4096 = 0x1000
|
||||
6A 02 ; PUSH !2
|
||||
59 ; POP_RCX # arg1 = EFI_LOADER_DATA
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF56 40 ; CALL_R14_Immediate8 !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 4096, &commmand)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
4159 ; POP_R9 # get file_info (arg4 for get_info)
|
||||
31D2 ; xor_edx,edx # zero RDX
|
||||
B6 10 ; mov_dh, !0x10 # arg2 = 4096 = 0x1000
|
||||
E8 %allocate_pool ; call %allocate pool # allocate memory
|
||||
4989C1 ; mov_r9,rax # get file_info (arg4 for get_info)
|
||||
|
||||
# Get file info
|
||||
4151 ; PUSH_R9 # save file_info
|
||||
50 ; PUSH_RAX # allocate stack for file_size
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &file_size
|
||||
49C700 00100000 ; STOREI32_into_Address_R8 %0x1000 # file_size = 0x1000
|
||||
488B15 %SIMPLE_FS_PROTOCOL_8 ; LOAD64_rel_RDX %SIMPLE_FS_PROTOCOL_8 # EFI_FILE_INFO_PROTOCOL (last 64 bits)
|
||||
52 ; PUSH_RDX # push last 64 bits onto stack
|
||||
488B15 %FILE_INFO_PROTOCOL ; LOAD64_rel_RDX %FILE_INFO_PROTOCOL # EFI_FILE_INFO_PROTOCOL (first 64 bits)
|
||||
52 ; PUSH_RDX # push first 64 bits onto stack
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &guid
|
||||
4889F9 ; COPY_RDI_to_RCX # arg1 = fcmd
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
FF51 40 ; CALL_RCX_Immediate8 !64 # fcmd->get_info(fcmd, &guid, &file_size, file_info)
|
||||
4883C4 38 ; ADDI8_RSP !56 # deallocate stack
|
||||
59 ; POP_RCX # restore file_info
|
||||
488B51 08 ; LOAD64_into_RDX_from_Address_RCX_Immediate8 !8 # get file_size
|
||||
50 ; push_rax # save file_info
|
||||
50 ; push_rax # allocate stack for file_size
|
||||
4989E0 ; mov_r8,rsp # arg3 = &file_size
|
||||
49C700 00100000 ; mov_[r8], %0x1000 # file_size = 0x1000
|
||||
488D15 %FILE_INFO_PROTOCOL ; lea_rdx,[rip+DWORD] %FILE_INFO_PROTOCOL # arg2 = &EFI_FILE_INFO_PROTOCOL
|
||||
4889F9 ; mov_rcx,rdi # arg1 = fcmd
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
FF51 40 ; call_[rcx+BYTE] !64 # fcmd->get_info(fcmd, &guid, &file_size, file_info)
|
||||
4883C4 28 ; add_rsp, !40 # deallocate stack
|
||||
59 ; pop_rcx # restore file_info
|
||||
488B51 08 ; mov_rdx,[rcx+BYTE] !8 # get file_size
|
||||
|
||||
# Free file_info pool
|
||||
52 ; PUSH_RDX # save file_size onto stack
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; CALL_R14_Immediate8 !72 # system->boot->free_pool(file_info)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
5A ; POP_RDX # restore file_size from stack (arg2 for allocate_pool)
|
||||
52 ; push_rdx # save file_size onto stack
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; call_[r14+BYTE] !72 # system->boot->free_pool(file_info)
|
||||
58 ; pop_rax # deallocate stack
|
||||
5A ; pop_rdx # restore file_size from stack (arg2 for allocate_pool)
|
||||
|
||||
# Allocate pool for executable
|
||||
52 ; PUSH_RDX # save file_size onto stack
|
||||
52 ; PUSH_RDX # allocate stack for executable
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &executable
|
||||
6A 02 ; PUSH !2
|
||||
59 ; POP_RCX # arg1 = EFI_LOADER_DATA
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF56 40 ; CALL_R14_Immediate8 !64 # system->boot->allocate_pool(EFI_LOADER_DATA, file_size, &executable)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
415F ; POP_R15 # get executable
|
||||
5A ; POP_RDX # restore file_size
|
||||
52 ; push_rdx # save file_size onto stack
|
||||
E8 %allocate_pool ; call %allocate_pool # allocate memory
|
||||
4989C7 ; mov_r15,rax # get executable
|
||||
5A ; pop_rdx # restore file_size
|
||||
|
||||
# Load executable into memory
|
||||
52 ; PUSH_RDX # save file_size onto stack
|
||||
4D89F8 ; COPY_R15_to_R8 # arg3 = executable
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &file_size
|
||||
4889F9 ; COPY_RDI_to_RCX # arg1 = fcmd
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
FF51 20 ; CALL_RCX_Immediate8 !32 # fcmd->read(fcmd, &file_size, executable)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
52 ; push_rdx # save file_size onto stack
|
||||
4D89F8 ; mov_r8,r15 # arg3 = executable
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &file_size
|
||||
4889F9 ; mov_rcx,rdi # arg1 = fcmd
|
||||
50 ; push_rax # allocate shadow stack space for UEFI
|
||||
50 ; push_rax # allocate shadow stack space for UEFI
|
||||
50 ; push_rax # allocate shadow stack space for UEFI
|
||||
FF51 20 ; call_[rcx+BYTE] !32 # fcmd->read(fcmd, &file_size, executable)
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
|
||||
# Close fcmd
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
4889F9 ; COPY_RDI_to_RCX # arg1 = fcmd
|
||||
FF51 10 ; CALL_RCX_Immediate8 !16 # fcmd->close(fcmd)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
50 ; push_rax # allocate shadow stack space for UEFI
|
||||
4889F9 ; mov_rcx,rdi # arg1 = fcmd
|
||||
FF51 10 ; call_[rcx+BYTE] !16 # fcmd->close(fcmd)
|
||||
58 ; pop_rax # deallocate stack
|
||||
|
||||
5F ; POP_RDI # restore file_size
|
||||
5F ; pop_rdi # restore file_size
|
||||
|
||||
# Allocate memory for device_path struct
|
||||
52 ; PUSH_RDX # allocate stack for device_path
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &device_path
|
||||
6A 1C ; PUSH !28 # 4 + sizeof(struct efi_device_path_protocol)
|
||||
5A ; POP_RDX # arg2 = 28
|
||||
6A 02 ; PUSH !2
|
||||
59 ; POP_RCX # arg1 = EFI_LOADER_DATA
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF56 40 ; CALL_R14_Immediate8 !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 28, &device_path)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
4158 ; POP_R8 # get device_path
|
||||
6A 1C ; push !28 # 4 + sizeof(struct efi_device_path_protocol)
|
||||
5A ; pop_rdx # arg2 = 28
|
||||
E8 %allocate_pool ; call %allocate_pool # allocate memory
|
||||
4989C0 ; mov_r8,rax # get device_path
|
||||
|
||||
# Initialize struct
|
||||
4C89C0 ; COPY_R8_to_RAX # Make a pointer to device_path members
|
||||
C600 01 ; STOREI8_into_Address_RAX !1 # device_path->type = HARDWARE_DEVICE_PATH
|
||||
48FFC0 ; INC_RAX # next member
|
||||
C600 03 ; STOREI8_into_Address_RAX !3 # device_path->subtype = MEMORY_MAPPED
|
||||
48FFC0 ; INC_RAX # next member
|
||||
66C700 1800 ; STOREI16_into_Address_RAX @24 # device_path->length = 24
|
||||
4883C0 02 ; ADDI8_RAX !2 # next member
|
||||
C700 01000000 ; STOREI32_into_Address_RAX %1 # device_path->memory_type = EFI_LOADER_CODE
|
||||
4883C0 04 ; ADDI8_RAX !4 # next member
|
||||
4C8938 ; STORE64_R15_into_Address_RAX # device_path->start_address = executable
|
||||
4883C0 08 ; ADDI8_RAX !8 # next member
|
||||
4901FF ; ADD_RDI_to_R15 # end_address = executable + file_size
|
||||
4C8938 ; STORE64_R15_into_Address_RAX # device_path->end_address = end_address
|
||||
4929FF ; SUB_RDI_from_R15 # restore r15 = executable
|
||||
4883C0 08 ; ADDI8_RAX !8 # next member
|
||||
C600 7F ; STOREI8_into_Address_RAX !0x7f # device_path[1].type = END_HARDWARE_DEVICE_PATH
|
||||
48FFC0 ; INC_RAX # next member
|
||||
C600 FF ; STOREI8_into_Address_RAX !0xff # device_path[1].subtype = END_ENTIRE_DEVICE_PATH
|
||||
48FFC0 ; INC_RAX # next member
|
||||
66C700 0400 ; STOREI16_into_Address_RAX @4 # device_path[1].length = 4
|
||||
C600 01 ; mov_[rax],BYTE !1 # device_path->type = HARDWARE_DEVICE_PATH
|
||||
48FFC0 ; inc_rax # next member
|
||||
C600 03 ; mov_[rax],BYTE !3 # device_path->subtype = MEMORY_MAPPED
|
||||
48FFC0 ; inc_rax # next member
|
||||
66C700 1800 ; mov_[rax],WORD @24 # device_path->length = 24
|
||||
4883C0 02 ; add_rax, !2 # next member
|
||||
C700 01000000 ; mov_[rax], %1 # device_path->memory_type = EFI_LOADER_CODE
|
||||
4883C0 04 ; add_rax, !4 # next member
|
||||
4C8938 ; mov_[rax],r15 # device_path->start_address = executable
|
||||
4883C0 08 ; add_rax, !8 # next member
|
||||
4901FF ; add_r15,rdi # end_address = executable + file_size
|
||||
4C8938 ; mov_[rax],r15 # device_path->end_address = end_address
|
||||
4929FF ; sub_r15,rdi # restore r15 = executable
|
||||
4883C0 08 ; add_rax, !8 # next member
|
||||
C600 7F ; mov_[rax],BYTE !0x7f # device_path[1].type = END_HARDWARE_DEVICE_PATH
|
||||
48FFC0 ; inc_rax # next member
|
||||
C600 FF ; mov_[rax],BYTE !0xff # device_path[1].subtype = END_ENTIRE_DEVICE_PATH
|
||||
48FFC0 ; inc_rax # next member
|
||||
66C700 0400 ; mov_[rax],WORD @4 # device_path[1].length = 4
|
||||
|
||||
# Load image
|
||||
4150 ; PUSH_R8 # save device_path
|
||||
50 ; PUSH_RAX # allocate stack for child_ih
|
||||
54 ; PUSH_RSP # arg6 = &child_ih
|
||||
57 ; PUSH_RDI # arg5 = file size
|
||||
4D89F9 ; COPY_R15_to_R9 # arg4 = executable
|
||||
# arg3 = device_path
|
||||
488B15 %image_handle ; LOAD64_into_RDX_rel32 %image_handle # arg2 = image_handle
|
||||
31C9 ; XOR_ECX_ECX # arg1 = 0
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 C8000000 ; CALL_R14_Immediate32 %200 # system->boot->load_image()
|
||||
4883C4 30 ; ADDI8_RSP !48 # deallocate stack
|
||||
5F ; POP_RDI # save child_ih
|
||||
4150 ; push_r8 # save device_path
|
||||
50 ; push_rax # allocate stack for child_ih
|
||||
54 ; push_rsp # arg6 = &child_ih
|
||||
57 ; push_rdi # arg5 = file size
|
||||
4D89F9 ; mov_r9,r15 # arg4 = executable
|
||||
# arg3 = device_path
|
||||
488B15 %image_handle ; mov_rdx,[rip+DWORD] %image_handle # arg2 = image_handle
|
||||
31C9 ; xor_ecx,ecx # arg1 = 0
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 C8000000 ; call_[r14+DWORD] %200 # system->boot->load_image()
|
||||
4883C4 30 ; add_rsp, !48 # deallocate stack
|
||||
5F ; pop_rdi # save child_ih
|
||||
|
||||
# Free device_path pool
|
||||
59 ; POP_RCX # arg1 = device_path
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; CALL_R14_Immediate8 !72 # system->boot->free_pool(device_path)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
59 ; pop_rcx # arg1 = device_path
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; call_[r14+BYTE] !72 # system->boot->free_pool(device_path)
|
||||
58 ; pop_rax # deallocate stack
|
||||
|
||||
# Free executable pool
|
||||
4C89F9 ; COPY_R15_to_RCX # arg1 = executable
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; CALL_R14_Immediate8 !72 # system->boot->free_pool(executable)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
4C89F9 ; mov_rcx,r15 # arg1 = executable
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; call_[r14+BYTE] !72 # system->boot->free_pool(executable)
|
||||
58 ; pop_rax # deallocate stack
|
||||
|
||||
# Open Child Image
|
||||
50 ; PUSH_RAX # allocate stack for child_image
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &child_image
|
||||
488B15 %LOADED_IMAGE_PROTOCOL_8 ; LOAD64_rel_RDX %LOADED_IMAGE_PROTOCOL_8 # EFI_LOADED_IMAGE_PROTOCOL_GUID (last 64 bits)
|
||||
52 ; PUSH_RDX # push last 64 bits onto stack
|
||||
488B15 %LOADED_IMAGE_PROTOCOL ; LOAD64_rel_RDX %LOADED_IMAGE_PROTOCOL # EFI_LOADED_IMAGE_PROTOCOL_GUID (first 64 bits)
|
||||
52 ; PUSH_RDX # push first 64 bits onto
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &guid
|
||||
6A 01 ; PUSH !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
6A 00 ; PUSH !0 # arg5 = NULL
|
||||
4989F9 ; COPY_RDI_to_R9 # arg4 = child_ih
|
||||
4889F9 ; COPY_RDI_to_RCX # arg1 = child_ih
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 18010000 ; CALL_R14_Immediate32 %280 # system->boot->open_protocol(child_ih, &guid, &child_image, child_ih, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
4883C4 40 ; ADDI8_RSP !64 # deallocate stack
|
||||
58 ; POP_RAX # get child_image
|
||||
4989F9 ; mov_r9,rdi # arg4 = child_ih
|
||||
488D15 %LOADED_IMAGE_PROTOCOL ; lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
|
||||
52 ; push_rdx # save &LOADED_IMAGE_PROTOCOL
|
||||
4C89C9 ; mov_rcx,r9 # arg1 = child_ih
|
||||
E8 %open_protocol ; call %open_protocol # open protocol
|
||||
|
||||
488958 38 ; STORE64_from_RBX_into_Address_RAX_Immediate8 !56 # child_image->load_options = command
|
||||
488970 30 ; STORE64_from_RSI_into_Address_RAX_Immediate8 !48 # set child_image->load_options_size
|
||||
488B0D %image ; LOAD64_rel_RCX %image # get image
|
||||
488B49 18 ; LOAD64_into_RCX_from_Address_RCX_Immediate8 !24 # image->device
|
||||
488948 18 ; STORE64_from_RCX_into_Address_RCX_Immediate8 !24 # child_image->device = image->device
|
||||
488958 38 ; mov_[rax+BYTE],rbx !56 # child_image->load_options = command
|
||||
488970 30 ; mov_[rax+BYTE],rsi !48 # set child_image->load_options_size
|
||||
488B0D %image ; mov_rcx,[rip+DWORD] %image # get image
|
||||
488B49 18 ; mov_rcx,[rcx+BYTE] !24 # image->device
|
||||
488948 18 ; mov_[rax+BYTE],rcx !24 # child_image->device = image->device
|
||||
|
||||
4989F8 ; mov_r8,rdi # arg3 = image_handle
|
||||
5A ; pop_rdx # arg2 = &LOADED_IMAGE_PROTOCOL
|
||||
4C89C1 ; mov_rcx,r8 # arg1 = image_handle
|
||||
E8 %close_protocol ; call %close_protocol # close protocol
|
||||
|
||||
# Run command
|
||||
4D31C0 ; XOR_R8_R8 # arg3 = 0 (ExitData)
|
||||
31D2 ; XOR_EDX_EDX # arg2 = 0 (ExitData size)
|
||||
4889F9 ; COPY_RDI_to_RCX # arg1 = child_ih
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF96 D0000000 ; CALL_R14_Immediate32 %208 # system->boot->start_image()
|
||||
59 ; POP_RCX # deallocate stack
|
||||
59 ; POP_RCX # deallocate stack
|
||||
59 ; POP_RCX # deallocate stack
|
||||
4D31C0 ; xor_r8,r8 # arg3 = 0 (ExitData)
|
||||
31D2 ; xor_edx,edx # arg2 = 0 (ExitData size)
|
||||
4889F9 ; mov_rcx,rdi # arg1 = child_ih
|
||||
50 ; push_rax # allocate shadow stack space for UEFI
|
||||
50 ; push_rax # allocate shadow stack space for UEFI
|
||||
50 ; push_rax # allocate shadow stack space for UEFI
|
||||
41FF96 D0000000 ; call_[r14+DWORD] %208 # system->boot->start_image()
|
||||
59 ; pop_rcx # deallocate stack
|
||||
59 ; pop_rcx # deallocate stack
|
||||
59 ; pop_rcx # deallocate stack
|
||||
|
||||
85C0 ; TEST_EAX_EAX # check if return code is 0
|
||||
75 !print_error ; JNE8 !print_error # print error and exit
|
||||
E9 %next_command ; JMP32 %next_command # process another line from kaem script
|
||||
85C0 ; test_eax,eax # check if return code is 0
|
||||
75 !print_error ; jne8 !print_error # print error and exit
|
||||
E9 %next_command ; jmp %next_command # process another line from kaem script
|
||||
|
||||
:print_error
|
||||
50 ; PUSH_RAX # save exit code
|
||||
488D15 %subprocess_error ; LEA_RDX_rel %subprocess_error # get error message
|
||||
E8 %File_Print ; CALLI32 %File_Print # print it
|
||||
58 ; POP_RAX # restore exit code
|
||||
50 ; push_rax # save exit code
|
||||
488D15 %subprocess_error ; lea_rdx,[rip+DWORD] %subprocess_error # get error message
|
||||
E8 %File_Print ; call %File_Print # print it
|
||||
58 ; pop_rax # restore exit code
|
||||
|
||||
# Close script file and exit
|
||||
:terminate
|
||||
# Free pool
|
||||
4889D9 ; COPY_RBX_to_RCX # arg1 = command
|
||||
50 ; PUSH_RAX # save exit code
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; CALL_R14_Immediate8 !72 # system->boot->free_pool(commmand)
|
||||
4889D9 ; mov_rcx,rbx # arg1 = command
|
||||
50 ; push_rax # save exit code
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; call_[r14+BYTE] !72 # system->boot->free_pool(commmand)
|
||||
|
||||
4C89E1 ; COPY_R12_to_RCX # arg1 = fin
|
||||
FF51 10 ; CALL_RCX_Immediate8 !16 # fin->close(fin)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # restore exit code
|
||||
4C89E1 ; mov_rcx,r12 # arg1 = fin
|
||||
FF51 10 ; call_[rcx+BYTE] !16 # fin->close(fin)
|
||||
|
||||
488B0D %rootdir ; mov_rcx,[rip+DWORD] %rootdir # arg1 = rootdir
|
||||
FF51 10 ; call_[rcx+BYTE] !16 # rootdir->close(rootdir)
|
||||
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # restore exit code
|
||||
|
||||
# Exit without closing script file
|
||||
:terminate_2
|
||||
4C8B05 %image_handle ; mov_r8,[rip+DWORD] %image_handle # arg3 = image_handle
|
||||
4150 ; push_r8 # save image_handle
|
||||
488D15 %SIMPLE_FS_PROTOCOL ; lea_rdx,[rip+DWORD] %SIMPLE_FS_PROTOCOL # guid = &SIMPLE_FS_PROTOCOL
|
||||
488B0D %root_device ; mov_rcx,[rip+DWORD] %root_device # arg1 = root_device
|
||||
E8 %close_protocol ; call %close_protocol # close protocol
|
||||
|
||||
4158 ; pop_r8 # arg3 = image_handle
|
||||
488D15 %LOADED_IMAGE_PROTOCOL ; lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
|
||||
4C89C1 ; mov_rcx,r8 # arg1 = image_handle
|
||||
E8 %close_protocol ; call %close_protocol # close protocol
|
||||
|
||||
:abort
|
||||
4889EC ; COPY_RBP_to_RSP # restore stack
|
||||
C3 ; RET
|
||||
4889EC ; mov_rsp,rbp # restore stack
|
||||
C3 ; ret # return to UEFI
|
||||
|
||||
:File_Print
|
||||
488B0D %system_out ; LOAD64_rel_RCX %system_out # get system_out
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; CALL_RCX_Immediate8 !8 # system->out->output_string(system->out, WCHAR*)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
C3 ; RET
|
||||
488B0D %system_out ; mov_rcx,[rip+DWORD] %system_out # get system_out
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function for UEFI function
|
||||
FF51 08 ; call_[rcx+BYTE] !8 # system->out->output_string(system->out, WCHAR*)
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
C3 ; ret
|
||||
|
||||
# read_byte function
|
||||
# reads a single character
|
||||
:read_byte
|
||||
4C89E1 ; COPY_R12_to_RCX # arg1 = fin
|
||||
6A 01 ; PUSH !1 # size = 1
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &size
|
||||
56 ; PUSH_RSI # allocate stack
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &c
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
FF51 20 ; CALL_RCX_Immediate8 !32 # fin->read()
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # save c to rax
|
||||
59 ; POP_RCX # save size to rcx
|
||||
4C89E1 ; mov_rcx,r12 # arg1 = fin
|
||||
6A 01 ; push !1 # size = 1
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &size
|
||||
56 ; push_rsi # allocate stack
|
||||
4989E0 ; mov_r8,rsp # arg3 = &c
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
FF51 20 ; call_[rcx+BYTE] !32 # fin->read()
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # save c to rax
|
||||
59 ; pop_rcx # save size to rcx
|
||||
|
||||
# If the file ended (0 bytes read) terminate
|
||||
85C9 ; TEST_ECX_ECX # if size = 0
|
||||
74 !terminate ; JE8 !terminate # then we are done
|
||||
85C9 ; test_ecx,ecx # if size = 0
|
||||
74 !terminate ; je8 !terminate # then we are done
|
||||
|
||||
C3 ; RET # return
|
||||
C3 ; ret # return
|
||||
|
||||
# rcx: handle
|
||||
# rdx: &guid
|
||||
# r9: agent_handle
|
||||
# returns interface
|
||||
:open_protocol
|
||||
50 ; push_rax # allocate stack for interface
|
||||
4989E0 ; mov_r8,rsp # arg3 = &interface
|
||||
6A 01 ; push !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
6A 00 ; push !0 # arg5 = NULL
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 18010000 ; call_[r14+DWORD] %280 # system->boot->open_protocol(handle, &guid, &interface, agent_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
4883C4 30 ; add_rsp, !48 # deallocate stack
|
||||
58 ; pop_rax # get image
|
||||
C3 ; ret
|
||||
|
||||
# rcx: handle
|
||||
# rdx: &guid
|
||||
# r8: agent_handle
|
||||
:close_protocol
|
||||
4D31C9 ; xor_r9,r9 # arg4 = NULL
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 20010000 ; call_[r14+DWORD] %288 # system->boot->close_protocol(handle, &guid, agent_handle, 0)
|
||||
4883C4 20 ; add_rsp, !32 # deallocate stack
|
||||
C3 ; ret
|
||||
|
||||
# rdx: number of bytes to allocate
|
||||
# r14: system->boot
|
||||
# returns pointer in rax
|
||||
:allocate_pool
|
||||
52 ; push_rdx # allocate stack for pool pointer
|
||||
4989E0 ; mov_r8,rsp # arg3 = &pool
|
||||
6A 02 ; push !2
|
||||
59 ; pop_rcx # arg1 = EFI_LOADER_DATA
|
||||
4883EC 18 ; sub_rsp, !24 # allocate shadow stack space for UEFI
|
||||
41FF56 40 ; call_[r14+BYTE] !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 2048, &pool)
|
||||
4883C4 18 ; add_rsp, !24 # deallocate stack
|
||||
58 ; pop_rax # get pool
|
||||
C3 ; ret
|
||||
|
||||
# Protocol GUIDs
|
||||
:LOADED_IMAGE_PROTOCOL
|
||||
A1 31 1B 5B ; %0x5b1b31a1:SIMPLE_FS_PROTOCOL
|
||||
62 95 ; @0x9562 22 5B 4E 96 ; %0x0964e5b22
|
||||
D2 11 ; @0x11d2 59 64 ; @0x6459
|
||||
:LOADED_IMAGE_PROTOCOL_8
|
||||
8E 3F 00 A0 C9 69 72 3B ; !0x8e !0x3f !0 !0xa0 !0xc9 !0x69 !0x72 !0x3b
|
||||
|
||||
:SIMPLE_FS_PROTOCOL
|
||||
22 5B 4E 96 ; %0x0964e5b22
|
||||
59 64 ; @0x6459
|
||||
D2 11 ; @0x11d2
|
||||
:SIMPLE_FS_PROTOCOL_8
|
||||
8E 39 00 A0 C9 69 72 3B ; !0x8e !0x39 !0 !0xa0 !0xc9 !0x69 !0x72 !0x3b
|
||||
|
||||
:FILE_INFO_PROTOCOL
|
||||
92 6E 57 09 ; %0x09576e92
|
||||
3F 6D ; @0x6d3f
|
||||
D2 11 ; @0x11d2
|
||||
# last 64-bits of GUID are identical to SIMPLE_FS_PROTOCOL
|
||||
8E 39 00 A0 C9 69 72 3B ; !0x8e !0x39 !0 !0xa0 !0xc9 !0x69 !0x72 !0x3b
|
||||
|
||||
:default_file
|
||||
6B 00 61 00 65 00 6D 00 2E 00 61 00 6D 00 64 00 36 00 34 00 00 00 ; L"kaem.amd64"
|
||||
|
|
@ -460,6 +450,12 @@
|
|||
:image
|
||||
00 00 00 00 00 00 00 00
|
||||
|
||||
:rootdir
|
||||
00 00 00 00 00 00 00 00
|
||||
|
||||
:root_device
|
||||
00 00 00 00 00 00 00 00
|
||||
|
||||
:system_out
|
||||
00 00 00 00 00 00 00 00
|
||||
|
||||
|
|
|
|||
|
|
@ -143,7 +143,7 @@ CF 03 00 00 ; SizeOfRawData
|
|||
|
||||
# Open Loaded Image protocol
|
||||
4D89F9 ; mov_r9,r15 # arg4 = image_handle
|
||||
488D15 9B030000 ; lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
|
||||
488D15 9B030000 ; lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
|
||||
4C89C9 ; mov_rcx,r9 # arg1 = image_handle
|
||||
50 ; push_rax # allocate stack for image
|
||||
4989E0 ; mov_r8,rsp # arg3 = &image
|
||||
|
|
@ -156,7 +156,7 @@ CF 03 00 00 ; SizeOfRawData
|
|||
|
||||
# Get root file system
|
||||
4D89F9 ; mov_r9,r15 # arg4 = image_handle
|
||||
488D15 86030000 ; lea_rdx,[rip+DWORD] %SIMPLE_FS_PROTOCOL # guid = &SIMPLE_FS_PROTOCOL
|
||||
488D15 86030000 ; lea_rdx,[rip+DWORD] %SIMPLE_FS_PROTOCOL # guid = &SIMPLE_FS_PROTOCOL
|
||||
488B4F 18 ; mov_rcx,[rdi+BYTE] !24 # arg1 = root_device = image->device
|
||||
4989CD ; mov_r13,rcx # save root_device
|
||||
50 ; push_rax # allocate stack for rootfs
|
||||
|
|
@ -185,7 +185,7 @@ CF 03 00 00 ; SizeOfRawData
|
|||
6A 00 ; push !0 # Save end of arguments (NULL) onto stack
|
||||
# :loop_options [_start + 0x71]
|
||||
4839D3 ; cmp_rbx,rdx # Check if we are done
|
||||
74 14 ; je8 !loop_options_done # We are done
|
||||
74 14 ; je8 !loop_options_done # We are done
|
||||
4883EB 02 ; sub_rbx, !2 # --options
|
||||
8A03 ; mov_al,[rbx] # *options
|
||||
3C 20 ; cmp_al, !0x20 # if *options != ' '
|
||||
|
|
|
|||
|
|
@ -242,7 +242,7 @@ DD 06 00 00 ; SizeOfRawData
|
|||
# rewind input file
|
||||
4153 ; push_r11 # Protect r11
|
||||
488B0D %0 ; mov_rcx,[rip+DWORD] %fin # Using our input file
|
||||
31D2 ; xor_edx_edx # Offset Zero
|
||||
31D2 ; xor_edx,edx # Offset Zero
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
FF51 38 ; call_[rcx+BYTE] !56 # fin->set_position(fin, 0)
|
||||
|
|
@ -500,7 +500,7 @@ DD 06 00 00 ; SizeOfRawData
|
|||
488B0D %0 ; mov_rcx,[rip+DWORD] %fin # arg1 = fin
|
||||
6A 01 ; push !1 # size = 1
|
||||
4889E2 ; mov_rdx,rsb # arg2 = &size
|
||||
31F6 ; xor_esi_esi # zero rsi
|
||||
31F6 ; xor_esi,esi # zero rsi
|
||||
56 ; push_rsi # allocate stack
|
||||
4989E0 ; mov_rsp,r8 # arg3 = &input
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
|
|
@ -707,7 +707,7 @@ DD 06 00 00 ; SizeOfRawData
|
|||
E9 %T ; jmp %terminate
|
||||
|
||||
:S #:Done
|
||||
31C0 ; xor_eax_eax # Set exit code 0
|
||||
31C0 ; xor_eax,eax # Set exit code 0
|
||||
|
||||
:T #:terminate
|
||||
50 ; push_rax # save exit code
|
||||
|
|
|
|||
|
|
@ -120,9 +120,9 @@ F0 00 # SizeOfOptionalHeader
|
|||
# [0x148]
|
||||
# Start of section headers
|
||||
00 00 00 00 00 00 00 00 ; Name of the section (empty) but could set to ".text"
|
||||
F7 03 00 00 ; VirtualSize
|
||||
18 04 00 00 ; VirtualSize
|
||||
00 10 00 00 ; VirtualAddress
|
||||
F7 03 00 00 ; SizeOfRawData
|
||||
18 04 00 00 ; SizeOfRawData
|
||||
70 01 00 00 ; PointerToRawData
|
||||
00 00 00 00 ; PointerToRelocations
|
||||
00 00 00 00 ; PointerToLinenumbers
|
||||
|
|
@ -136,462 +136,459 @@ F7 03 00 00 ; SizeOfRawData
|
|||
|
||||
# efi_main(void *image_handle, struct efi_system_table *system)
|
||||
# :_start
|
||||
4889E5 ; COPY_RSP_to_RBP # save stack pointer
|
||||
48890D D5030000 ; STORE64_from_RCX_rel32 %image_handle # save image_handle
|
||||
488B42 40 ; LOAD64_into_RAX_from_Address_RDX_Immediate8 !64 # system->out
|
||||
488905 DA030000 ; STORE64_from_RAX_rel32 %system_out # save system->out
|
||||
4C8B72 60 ; LOAD64_into_R14_from_Address_RDX_Immediate8 !96 # system->boot
|
||||
4889E5 ; mov_rbp,rsp # save stack pointer
|
||||
48890D E6030000 ; mov_[rip+DWORD],rcx %image_handle # save image_handle
|
||||
4889CB ; mov_rbx,rcx # save image_handle
|
||||
488B42 40 ; mov_rax,[rdx+BYTE] !64 # system->out
|
||||
488905 F8030000 ; mov_[rip+DWORD],rax %system_out # save system->out
|
||||
4C8B72 60 ; mov_r14,[rdx+BYTE] !96 # system->boot
|
||||
|
||||
31C9 ; XOR_ECX_ECX # timeout = 0
|
||||
31D2 ; XOR_EDX_EDX # watchdog_code = 0
|
||||
4D31C0 ; XOR_R8_R8 # data_size = 0
|
||||
4D31C9 ; XOR_R9_R9 # watchdog_data = 0
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 F0000000 ; CALL_R14_Immediate32 %240 # system->boot->set_watchdog_timer
|
||||
31C9 ; xor_ecx,ecx # timeout = 0
|
||||
31D2 ; xor_edx,edx # watchdog_code = 0
|
||||
4D31C0 ; xor_r8,r8 # data_size = 0
|
||||
4D31C9 ; xor_r9,r9 # watchdog_data = 0
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 F0000000 ; call_[r14+DWORD] %240 # system->boot->set_watchdog_timer
|
||||
|
||||
# Open Loaded Image protocol
|
||||
50 ; PUSH_RAX # allocate stack for image
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &image
|
||||
488B15 40030000 ; LOAD64_rel_RDX %LOADED_IMAGE_PROTOCOL_8 # EFI_LOADED_IMAGE_PROTOCOL_GUID (last 64 bits)
|
||||
52 ; PUSH_RDX # push last 64 bits onto stack
|
||||
488B15 30030000 ; LOAD64_rel_RDX %LOADED_IMAGE_PROTOCOL # EFI_LOADED_IMAGE_PROTOCOL_GUID (first 64 bits)
|
||||
52 ; PUSH_RDX # push first 64 bits onto
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &guid
|
||||
6A 01 ; PUSH !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
6A 00 ; PUSH !0 # arg5 = NULL
|
||||
4C8B0D 8F030000 ; LOAD64_into_R9_rel32 %image_handle # arg4 = image_handle
|
||||
4C89C9 ; COPY_R9_to_RCX # arg1 = image_handle
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 18010000 ; CALL_R14_Immediate32 %280 # system->boot->open_protocol(image_handle, &guid, &image, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
488B4424 40 ; LOAD64_into_RAX_from_Address_RSP_Immediate8 !64 # get_image
|
||||
488905 7D030000 ; STORE64_from_RAX_rel32 %image # save image
|
||||
4989D9 ; mov_r9,rbx # arg4 = image_handle
|
||||
488D15 3F030000 ; lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
|
||||
4889D9 ; mov_rcx,rbx # arg1 = image_handle
|
||||
E8 F6020000 ; call %open_protocol # open protocol
|
||||
4889C7 ; mov_rdi,rax # save image
|
||||
488905 AB030000 ; mov_[rip+DWORD],rax %image # save image
|
||||
|
||||
# Command line args
|
||||
4889C1 ; COPY_RAX_to_RCX # copy image to rcx
|
||||
488B58 38 ; LOAD64_into_RBX_from_Address_RAX_Immediate8 !56 # options = image->load_options
|
||||
|
||||
# Skip application name
|
||||
# :loop_options1 [_start+0x71]
|
||||
4883C3 02 ; ADDI8_RBX !2 # ++options
|
||||
8A03 ; LOAD8_AL_from_Address_RBX # *options
|
||||
3C 20 ; CMPI8_AL !0x20 # if *options == ' '
|
||||
74 0D ; JE8 !loop_options2 # then jump
|
||||
84C0 ; TEST_AL_AL # if options != 0
|
||||
75 F2 ; JNE8 !loop_options1 # then loop
|
||||
|
||||
# Use default file
|
||||
4C8D25 13030000 ; LEA_R12_rel %default_file # Use "kaem.amd64"
|
||||
EB 07 ; JMP8 !root_fs # jump
|
||||
|
||||
# :loop_options2 [_start+0x88]
|
||||
4883C3 02 ; ADDI8_RBX !2 # ++options
|
||||
4989DC ; COPY_RBX_to_R12 # save input file
|
||||
|
||||
# :root_fs [_start+0x8F]
|
||||
# Get root file system
|
||||
50 ; PUSH_RAX # allocate stack for rootfs
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &rootfs
|
||||
488B15 EF020000 ; LOAD64_rel_RDX %SIMPLE_FS_PROTOCOL_8 # EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID (last 64 bits)
|
||||
52 ; PUSH_RDX # push last 64 bits onto stack
|
||||
488B15 DF020000 ; LOAD64_rel_RDX %SIMPLE_FS_PROTOCOL # EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID (first 64 bits)
|
||||
52 ; PUSH_RDX # push first 64 bits onto stack
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &guid
|
||||
6A 01 ; PUSH !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
6A 00 ; PUSH !0 # arg5 = NULL
|
||||
4C8B0D 2E030000 ; LOAD64_into_R9_rel32 %image_handle # arg4 = image_handle
|
||||
488B49 18 ; LOAD64_into_RCX_from_Address_RCX_Immediate8 !24 # arg1 = root_device = image->device
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 18010000 ; CALL_R14_Immediate32 %280 # system->boot->open_protocol(root_device, &guid, &rootfs, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
488B4C24 40 ; LOAD64_into_RCX_from_Address_RSP_Immediate8 !64 # get rootfs
|
||||
4989D9 ; mov_r9,rbx # arg4 = image_handle
|
||||
488D15 33030000 ; lea_rdx,[rip+DWORD] %SIMPLE_FS_PROTOCOL # guid = &SIMPLE_FS_PROTOCOL
|
||||
488B4F 18 ; mov_rcx,[rdi+BYTE] !24 # arg1 = root_device = image->device
|
||||
48890D A6030000 ; mov_[rip+DWORD],rcx %root_device # save root_device
|
||||
E8 D2020000 ; call %open_protocol # open protocol
|
||||
4889C1 ; mov_rcx,rax # get rootfs
|
||||
|
||||
# Get root directory
|
||||
52 ; PUSH_RDX # allocate stack for rootdir
|
||||
4889E2 ; COPY_RSP_to_RDX # arg3 = &rootdir
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; CALL_RCX_Immediate8 !8 # rootfs->open_volume(rootfs, &rootdir)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
415D ; POP_R13 # save rootdir
|
||||
488D15 8F030000 ; lea_rdx,[rip+DWORD] %rootdir # arg2 = &rootdir
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function space for UEFI function
|
||||
FF51 08 ; call_[rcx+BYTE] !8 # rootfs->open_volume(rootfs, &rootdir)
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
|
||||
# Push command line arguments onto stack
|
||||
488B5F 38 ; mov_rbx,[rdi+BYTE] !56 # options = image->load_options
|
||||
4889DA ; mov_rdx,rbx # save beginning of load_options
|
||||
48035F 30 ; add_rbx,[rdi+BYTE] !48 # go to the end of load_options
|
||||
6A 00 ; push !0 # Save end of arguments (NULL) onto stack
|
||||
# :loop_options [_start+0x85]
|
||||
4839D3 ; cmp_rbx,rdx # Check if we are done
|
||||
74 14 ; je8 !loop_options_done # We are done
|
||||
4883EB 02 ; sub_rbx, !2 # --options
|
||||
8A03 ; mov_al,[rbx] # *options
|
||||
3C 20 ; cmp_al, !0x20 # if *options != ' '
|
||||
75 F1 ; jne8 !loop_options # then continue looping
|
||||
C603 00 ; mov_[rbx], !0 # zero it
|
||||
4883C3 02 ; add_rbx, !2 # ++options
|
||||
53 ; push_rbx # push another argument onto stack
|
||||
EB E7 ; jmp8 !loop_options # next argument
|
||||
# :loop_options_done [_start+0x9E]
|
||||
|
||||
4158 ; pop_r8 # get input file
|
||||
4D85C0 ; test_r8,r8 # Check if argument is specified
|
||||
75 07 ; jne8 !arg_done # then use it
|
||||
# Else use default_file
|
||||
4C8D05 FE020000 ; lea_r8,[rip+DWORD] %default_file # Use "kaem.amd64"
|
||||
# :arg_done [_start+0xAC]
|
||||
|
||||
# Open file for reading
|
||||
52 ; PUSH_RDX # allocate stack for fin
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &fin
|
||||
6A 01 ; PUSH !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
6A 01 ; PUSH !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
4159 ; POP_R9 # arg4 = EFI_FILE_MODE_READ
|
||||
4D89E0 ; COPY_R12_to_R8 # arg3 = in
|
||||
4C89E9 ; COPY_R13_to_RCX # arg1 = rootdir
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; CALL_RCX_Immediate8 !8 # rootdir->open()
|
||||
85C0 ; TEST_EAX_EAX # if status != EFI_SUCCESS
|
||||
0F85 51020000 ; JNE32 %abort # then exit without closing file
|
||||
4C8B6424 28 ; LOAD64_into_R12_from_Address_RSP_Immediate8 !40 # get fin
|
||||
52 ; push_rdx # allocate stack for fin
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &fin
|
||||
6A 01 ; push !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
6A 01 ; push !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
4159 ; pop_r9 # arg4 = EFI_FILE_MODE_READ
|
||||
# arg3 = in
|
||||
488B0D 43030000 ; mov_rcx,[rip+DWORD] %rootdir # arg1 = rootdir
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; call_[rcx+BYTE] !8 # rootdir->open()
|
||||
85C0 ; test_eax,eax # if status != EFI_SUCCESS
|
||||
0F85 3E020000 ; jne %abort # then exit without closing file
|
||||
4C8B6424 28 ; mov_r12,[rsp+BYTE] !40 # get fin
|
||||
|
||||
# Allocate pool for command
|
||||
52 ; PUSH_RDX # allocate stack for command
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &command
|
||||
31D2 ; XOR_EDX_EDX # zero RDX
|
||||
B6 10 ; LOADI8_DH !0x10 # arg2 = 4096 = 0x1000
|
||||
6A 02 ; PUSH !2
|
||||
59 ; POP_RCX # arg1 = EFI_LOADER_DATA
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF56 40 ; CALL_R14_Immediate8 !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 4096, &commmand)
|
||||
488B5C24 18 ; LOAD64_into_RBX_from_Address_RSP_Immediate8 !24 # get command
|
||||
31D2 ; xor_edx,edx # zero RDX
|
||||
B6 10 ; mov_dh, !0x10 # arg2 = 4096 = 0x1000
|
||||
E8 8B020000 ; call %allocate_pool # allocate memory
|
||||
4889C3 ; mov_rbx,rax # get command
|
||||
|
||||
# :next_command [_start+0x10D]
|
||||
31F6 ; XOR_ESI_ESI # i = 0
|
||||
4D31FF ; XOR_R15_R15 # command_length = 0
|
||||
# :next_command [_start+0xDD]
|
||||
31F6 ; xor_esi,esi # i = 0
|
||||
4D31FF ; xor_r15,r15 # command_length = 0
|
||||
|
||||
# :read_command [_start+0x112]
|
||||
E8 3E020000 ; CALLI32 %read_byte # read another byte c
|
||||
# :read_command [_start+0xE2]
|
||||
E8 36020000 ; call %read_byte # read another byte c
|
||||
|
||||
3C 0A ; CMPI8_AL !0xa # if c == '\n'
|
||||
74 2A ; JE8 !read_command_done # then we are done with this command
|
||||
3C 0A ; cmp_al, !0xa # if c == '\n'
|
||||
74 2A ; je8 !read_command_done # then we are done with this command command command
|
||||
|
||||
3C 20 ; CMPI8_AL !0x20 # if c == ' '
|
||||
75 08 ; JNE8 !read_command_comments
|
||||
4D85FF ; TEST_R15_R15 # and command_length == 0
|
||||
75 03 ; JNE8 !read_command_comments
|
||||
4989F7 ; COPY_RSI_to_R15 # command_length = i
|
||||
3C 20 ; cmp_al, !0x20 # if c == ' '
|
||||
75 08 ; jne8 !read_command_comments
|
||||
4D85FF ; test_r15,r15 # and command_length == 0
|
||||
75 03 ; jne8 !read_command_comments
|
||||
4989F7 ; mov_r15,rsi # command_length = i
|
||||
|
||||
# :read_command_comments [_start+0x127]
|
||||
3C 23 ; CMPI8_AL !0x23 # if c == '#' then process comment
|
||||
75 0B ; JNE8 !read_command_store_char # else store char
|
||||
# :read_command_comments [_start+0xF7]
|
||||
3C 23 ; cmp_al, !0x23 # if c == '#' then process comment
|
||||
75 0B ; jne8 !read_command_store_char # else store char
|
||||
|
||||
# :read_command_skip_comment [_start+0x12B]
|
||||
E8 25020000 ; CALLI32 %read_byte # get another char
|
||||
3C 0A ; CMPI8_AL !0xa # if c == '\n'
|
||||
75 F7 ; JNE8 !read_command_skip_comment # continue reading until newline
|
||||
# :read_command_skip_comment [_start+0xFB]
|
||||
E8 1D020000 ; call %read_byte # get another char
|
||||
3C 0A ; cmp_al, !0xa # if c == '\n'
|
||||
75 F7 ; jne8 !read_command_skip_comment # continue reading until newline
|
||||
|
||||
EB D7 ; JMP8 !next_command # deal with another line
|
||||
EB D7 ; jmp8 !next_command # deal with another line
|
||||
|
||||
# :read_command_store_char [_start+0x136]
|
||||
4801F3 ; ADD_RSI_to_RBX # rbx = &command[i]
|
||||
668903 ; STORE16_AX_into_Address_RBX # command[i] = c
|
||||
4829F3 ; SUB_RSI_from_RBX # rbx = &command[0]
|
||||
4883C6 02 ; ADDI8_RSI !2 # location of the next char
|
||||
EB CD ; JMP8 !read_command # continue looping
|
||||
# :read_command_store_char [_start+0x106]
|
||||
4801F3 ; add_rbx,rsi # rbx = &command[i]
|
||||
668903 ; mov_[rbx],ax # command[i] = c
|
||||
4829F3 ; sub_rbx,rsi # rbx = &command[0]
|
||||
4883C6 02 ; add_rsi, !2 # location of the next char
|
||||
EB CD ; jmp8 !read_command # continue looping
|
||||
|
||||
# :read_command_done [_start+0x145]
|
||||
4D85FF ; TEST_R15_R15 # if command_length == 0
|
||||
74 C3 ; JE8 !next_command # deal with another line
|
||||
# :read_command_done [_start+0x115]
|
||||
4D85FF ; test_r15,r15 # if command_length == 0
|
||||
74 C3 ; je8 !next_command # deal with another line
|
||||
|
||||
4801F3 ; ADD_RSI_to_RBX # rbx = &command[i]
|
||||
66C703 0000 ; STOREI16_into_Address_RBX @0 # command[i] = 0
|
||||
4829F3 ; SUB_RSI_from_RBX # rbx = &command[0]
|
||||
4801F3 ; add_rbx,rsi # rbx = &command[i]
|
||||
66C703 0000 ; mov_[rbx],WORD @0 # command[i] = 0
|
||||
4829F3 ; sub_rbx,rsi # rbx = &command[0]
|
||||
|
||||
4883C6 02 ; ADDI8_RSI !2 # add 2 to get string length with NULL terminator
|
||||
4883C6 02 ; add_rsi, !2 # add 2 to get string length with NULL terminator
|
||||
|
||||
488D15 4F020000 ; LEA_RDX_rel %prefix # get prefix " +> "
|
||||
E8 E1010000 ; CALLI32 %File_Print # print it
|
||||
4889DA ; COPY_RBX_to_RDX # get command
|
||||
E8 D9010000 ; CALLI32 %File_Print # print it
|
||||
488D15 65020000 ; LEA_RDX_rel %suffix # get suffix "\n\r"
|
||||
E8 CD010000 ; CALLI32 %File_Print # print it
|
||||
488D15 90020000 ; lea_rdx,[rip+DWORD] %prefix # get prefix " +> "
|
||||
E8 D9010000 ; call %File_Print # print it
|
||||
4889DA ; mov_rdx,rbx # get command
|
||||
E8 D1010000 ; call %File_Print # print it
|
||||
488D15 A6020000 ; lea_rdx,[rip+DWORD] %suffix # get suffix "\n\r"
|
||||
E8 C5010000 ; call %File_Print # print it
|
||||
|
||||
# Remove command line options
|
||||
4901DF ; ADD_RBX_to_R15 # go to the space separating command and its options
|
||||
6641C707 0000 ; STOREI16_into_Address_R15 @0 # zero it to hide command line options
|
||||
4901DF ; add_r15,rbx # go to the space separating command and its options
|
||||
6641C707 0000 ; mov_[r15],WORD @0 # zero it to hide command line options
|
||||
|
||||
# Open executable file for reading
|
||||
52 ; PUSH_RDX # allocate stack for fcmd
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &fcmd
|
||||
6A 01 ; PUSH !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
6A 01 ; PUSH !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
4159 ; POP_R9 # arg4 = EFI_FILE_MODE_READ
|
||||
4989D8 ; COPY_RBX_to_R8 # arg3 = command
|
||||
4C89E9 ; COPY_R13_to_RCX # arg1 = rootdir
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; CALL_RCX_Immediate8 !8 # rootdir->open()
|
||||
85C0 ; TEST_EAX_EAX # if status != EFI_SUCCESS
|
||||
0F85 82010000 ; JNE32 %print_error # then exit
|
||||
4883C4 28 ; ADDI8_RSP !40 # deallocate stack
|
||||
5F ; POP_RDI # get fcmd
|
||||
52 ; push_rdx # allocate stack for fcmd
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &fcmd
|
||||
6A 01 ; push !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
6A 01 ; push !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
4159 ; pop_r9 # arg4 = EFI_FILE_MODE_READ
|
||||
4989D8 ; mov_r8,rbx # arg3 = command
|
||||
488B0D 9A020000 ; mov_rcx,[rip+DWORD] %rootdir # arg1 = rootdir
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; call_[rcx+BYTE] !8 # rootdir->open()
|
||||
85C0 ; test_eax,eax # if status != EFI_SUCCESS
|
||||
0F85 3F010000 ; jne %print_error # then exit
|
||||
4883C4 28 ; add_rsp, !40 # deallocate stack
|
||||
5F ; pop_rdi # get fcmd
|
||||
|
||||
# Restore command line arguments
|
||||
6641C707 2000 ; STOREI16_into_Address_R15 @0x20 # restore command line options by readding ' '
|
||||
|
||||
# Allocate pool for file_info
|
||||
52 ; PUSH_RDX # allocate stack for file_info
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &file_info
|
||||
31D2 ; XOR_EDX_EDX # zero RDX
|
||||
B6 10 ; LOADI8_DH !0x10 # arg2 = 4096 = 0x1000
|
||||
6A 02 ; PUSH !2
|
||||
59 ; POP_RCX # arg1 = EFI_LOADER_DATA
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF56 40 ; CALL_R14_Immediate8 !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 4096, &commmand)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
4159 ; POP_R9 # get file_info (arg4 for get_info)
|
||||
31D2 ; xor_edx,edx # zero RDX
|
||||
B6 10 ; mov_dh, !0x10 # arg2 = 4096 = 0x1000
|
||||
E8 DC010000 ; call %allocate pool # allocate memory
|
||||
4989C1 ; mov_r9,rax # get file_info (arg4 for get_info)
|
||||
|
||||
# Get file info
|
||||
4151 ; PUSH_R9 # save file_info
|
||||
50 ; PUSH_RAX # allocate stack for file_size
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &file_size
|
||||
49C700 00100000 ; STOREI32_into_Address_R8 %0x1000 # file_size = 0x1000
|
||||
488B15 B2010000 ; LOAD64_rel_RDX %SIMPLE_FS_PROTOCOL_8 # EFI_FILE_INFO_PROTOCOL (last 64 bits)
|
||||
52 ; PUSH_RDX # push last 64 bits onto stack
|
||||
488B15 B2010000 ; LOAD64_rel_RDX %FILE_INFO_PROTOCOL # EFI_FILE_INFO_PROTOCOL (first 64 bits)
|
||||
52 ; PUSH_RDX # push first 64 bits onto stack
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &guid
|
||||
4889F9 ; COPY_RDI_to_RCX # arg1 = fcmd
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
FF51 40 ; CALL_RCX_Immediate8 !64 # fcmd->get_info(fcmd, &guid, &file_size, file_info)
|
||||
4883C4 38 ; ADDI8_RSP !56 # deallocate stack
|
||||
59 ; POP_RCX # restore file_info
|
||||
488B51 08 ; LOAD64_into_RDX_from_Address_RCX_Immediate8 !8 # get file_size
|
||||
50 ; push_rax # save file_info
|
||||
50 ; push_rax # allocate stack for file_size
|
||||
4989E0 ; mov_r8,rsp # arg3 = &file_size
|
||||
49C700 00100000 ; mov_[r8], %0x1000 # file_size = 0x1000
|
||||
488D15 FB010000 ; lea_rdx,[rip+DWORD] %FILE_INFO_PROTOCOL # arg2 = &EFI_FILE_INFO_PROTOCOL
|
||||
4889F9 ; mov_rcx,rdi # arg1 = fcmd
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
FF51 40 ; call_[rcx+BYTE] !64 # fcmd->get_info(fcmd, &guid, &file_size, file_info)
|
||||
4883C4 28 ; add_rsp, !40 # deallocate stack
|
||||
59 ; pop_rcx # restore file_info
|
||||
488B51 08 ; mov_rdx,[rcx+BYTE] !8 # get file_size
|
||||
|
||||
# Free file_info pool
|
||||
52 ; PUSH_RDX # save file_size onto stack
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; CALL_R14_Immediate8 !72 # system->boot->free_pool(file_info)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
5A ; POP_RDX # restore file_size from stack (arg2 for allocate_pool)
|
||||
52 ; push_rdx # save file_size onto stack
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; call_[r14+BYTE] !72 # system->boot->free_pool(file_info)
|
||||
58 ; pop_rax # deallocate stack
|
||||
5A ; pop_rdx # restore file_size from stack (arg2 for allocate_pool)
|
||||
|
||||
# Allocate pool for executable
|
||||
52 ; PUSH_RDX # save file_size onto stack
|
||||
52 ; PUSH_RDX # allocate stack for executable
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &executable
|
||||
6A 02 ; PUSH !2
|
||||
59 ; POP_RCX # arg1 = EFI_LOADER_DATA
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF56 40 ; CALL_R14_Immediate8 !64 # system->boot->allocate_pool(EFI_LOADER_DATA, file_size, &executable)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
415F ; POP_R15 # get executable
|
||||
5A ; POP_RDX # restore file_size
|
||||
# Allocate pool for executable [_start+0x1BA]
|
||||
52 ; push_rdx # save file_size onto stack
|
||||
E8 A5010000 ; call %allocate_pool # allocate memory
|
||||
4989C7 ; mov_r15,rax # get executable
|
||||
5A ; pop_rdx # restore file_size
|
||||
|
||||
# Load executable into memory
|
||||
52 ; PUSH_RDX # save file_size onto stack
|
||||
4D89F8 ; COPY_R15_to_R8 # arg3 = executable
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &file_size
|
||||
4889F9 ; COPY_RDI_to_RCX # arg1 = fcmd
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
FF51 20 ; CALL_RCX_Immediate8 !32 # fcmd->read(fcmd, &file_size, executable)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
52 ; push_rdx # save file_size onto stack
|
||||
4D89F8 ; mov_r8,r15 # arg3 = executable
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &file_size
|
||||
4889F9 ; mov_rcx,rdi # arg1 = fcmd
|
||||
50 ; push_rax # allocate shadow stack space for UEFI
|
||||
50 ; push_rax # allocate shadow stack space for UEFI
|
||||
50 ; push_rax # allocate shadow stack space for UEFI
|
||||
FF51 20 ; call_[rcx+BYTE] !32 # fcmd->read(fcmd, &file_size, executable)
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
|
||||
# Close fcmd
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
4889F9 ; COPY_RDI_to_RCX # arg1 = fcmd
|
||||
FF51 10 ; CALL_RCX_Immediate8 !16 # fcmd->close(fcmd)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
50 ; push_rax # allocate shadow stack space for UEFI
|
||||
4889F9 ; mov_rcx,rdi # arg1 = fcmd
|
||||
FF51 10 ; call_[rcx+BYTE] !16 # fcmd->close(fcmd)
|
||||
58 ; pop_rax # deallocate stack
|
||||
|
||||
5F ; POP_RDI # restore file_size
|
||||
5F ; pop_rdi # restore file_size
|
||||
|
||||
# Allocate memory for device_path struct
|
||||
52 ; PUSH_RDX # allocate stack for device_path
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &device_path
|
||||
6A 1C ; PUSH !28 # 4 + sizeof(struct efi_device_path_protocol)
|
||||
5A ; POP_RDX # arg2 = 28
|
||||
6A 02 ; PUSH !2
|
||||
59 ; POP_RCX # arg1 = EFI_LOADER_DATA
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF56 40 ; CALL_R14_Immediate8 !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 28, &device_path)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
4158 ; POP_R8 # get device_path
|
||||
6A 1C ; push !28 # 4 + sizeof(struct efi_device_path_protocol)
|
||||
5A ; pop_rdx # arg2 = 28
|
||||
E8 7D010000 ; call %allocate_pool # allocate memory
|
||||
4989C0 ; mov_r8,rax # get device_path
|
||||
|
||||
# Initialize struct
|
||||
4C89C0 ; COPY_R8_to_RAX # Make a pointer to device_path members
|
||||
C600 01 ; STOREI8_into_Address_RAX !1 # device_path->type = HARDWARE_DEVICE_PATH
|
||||
48FFC0 ; INC_RAX # next member
|
||||
C600 03 ; STOREI8_into_Address_RAX !3 # device_path->subtype = MEMORY_MAPPED
|
||||
48FFC0 ; INC_RAX # next member
|
||||
66C700 1800 ; STOREI16_into_Address_RAX @24 # device_path->length = 24
|
||||
4883C0 02 ; ADDI8_RAX !2 # next member
|
||||
C700 01000000 ; STOREI32_into_Address_RAX %1 # device_path->memory_type = EFI_LOADER_CODE
|
||||
4883C0 04 ; ADDI8_RAX !4 # next member
|
||||
4C8938 ; STORE64_R15_into_Address_RAX # device_path->start_address = executable
|
||||
4883C0 08 ; ADDI8_RAX !8 # next member
|
||||
4901FF ; ADD_RDI_to_R15 # end_address = executable + file_size
|
||||
4C8938 ; STORE64_R15_into_Address_RAX # device_path->end_address = end_address
|
||||
4929FF ; SUB_RDI_from_R15 # restore r15 = executable
|
||||
4883C0 08 ; ADDI8_RAX !8 # next member
|
||||
C600 7F ; STOREI8_into_Address_RAX !0x7f # device_path[1].type = END_HARDWARE_DEVICE_PATH
|
||||
48FFC0 ; INC_RAX # next member
|
||||
C600 FF ; STOREI8_into_Address_RAX !0xff # device_path[1].subtype = END_ENTIRE_DEVICE_PATH
|
||||
48FFC0 ; INC_RAX # next member
|
||||
66C700 0400 ; STOREI16_into_Address_RAX @4 # device_path[1].length = 4
|
||||
C600 01 ; mov_[rax],BYTE !1 # device_path->type = HARDWARE_DEVICE_PATH
|
||||
48FFC0 ; inc_rax # next member
|
||||
C600 03 ; mov_[rax],BYTE !3 # device_path->subtype = MEMORY_MAPPED
|
||||
48FFC0 ; inc_rax # next member
|
||||
66C700 1800 ; mov_[rax],WORD @24 # device_path->length = 24
|
||||
4883C0 02 ; add_rax, !2 # next member
|
||||
C700 01000000 ; mov_[rax], %1 # device_path->memory_type = EFI_LOADER_CODE
|
||||
4883C0 04 ; add_rax, !4 # next member
|
||||
4C8938 ; mov_[rax],r15 # device_path->start_address = executable
|
||||
4883C0 08 ; add_rax, !8 # next member
|
||||
4901FF ; add_r15,rdi # end_address = executable + file_size
|
||||
4C8938 ; mov_[rax],r15 # device_path->end_address = end_address
|
||||
4929FF ; sub_r15,rdi # restore r15 = executable
|
||||
4883C0 08 ; add_rax, !8 # next member
|
||||
C600 7F ; mov_[rax],BYTE !0x7f # device_path[1].type = END_HARDWARE_DEVICE_PATH
|
||||
48FFC0 ; inc_rax # next member
|
||||
C600 FF ; mov_[rax],BYTE !0xff # device_path[1].subtype = END_ENTIRE_DEVICE_PATH
|
||||
48FFC0 ; inc_rax # next member
|
||||
66C700 0400 ; mov_[rax],WORD @4 # device_path[1].length = 4
|
||||
|
||||
# Load image
|
||||
4150 ; PUSH_R8 # save device_path
|
||||
50 ; PUSH_RAX # allocate stack for child_ih
|
||||
54 ; PUSH_RSP # arg6 = &child_ih
|
||||
57 ; PUSH_RDI # arg5 = file size
|
||||
4D89F9 ; COPY_R15_to_R9 # arg4 = executable
|
||||
# arg3 = device_path
|
||||
488B15 44010000 ; LOAD64_into_RDX_rel32 %image_handle # arg2 = image_handle
|
||||
31C9 ; XOR_ECX_ECX # arg1 = 0
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 C8000000 ; CALL_R14_Immediate32 %200 # system->boot->load_image()
|
||||
4883C4 30 ; ADDI8_RSP !48 # deallocate stack
|
||||
5F ; POP_RDI # save child_ih
|
||||
4150 ; push_r8 # save device_path
|
||||
50 ; push_rax # allocate stack for child_ih
|
||||
54 ; push_rsp # arg6 = &child_ih
|
||||
57 ; push_rdi # arg5 = file size
|
||||
4D89F9 ; mov_r9,r15 # arg4 = executable
|
||||
# arg3 = device_path
|
||||
488B15 B2010000 ; mov_rdx,[rip+DWORD] %image_handle # arg2 = image_handle
|
||||
31C9 ; xor_ecx,ecx # arg1 = 0
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 C8000000 ; call_[r14+DWORD] %200 # system->boot->load_image()
|
||||
4883C4 30 ; add_rsp, !48 # deallocate stack
|
||||
5F ; pop_rdi # save child_ih
|
||||
|
||||
# Free device_path pool
|
||||
59 ; POP_RCX # arg1 = device_path
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; CALL_R14_Immediate8 !72 # system->boot->free_pool(device_path)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
59 ; pop_rcx # arg1 = device_path
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; call_[r14+BYTE] !72 # system->boot->free_pool(device_path)
|
||||
58 ; pop_rax # deallocate stack
|
||||
|
||||
# Free executable pool
|
||||
4C89F9 ; COPY_R15_to_RCX # arg1 = executable
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; CALL_R14_Immediate8 !72 # system->boot->free_pool(executable)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
4C89F9 ; mov_rcx,r15 # arg1 = executable
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; call_[r14+BYTE] !72 # system->boot->free_pool(executable)
|
||||
58 ; pop_rax # deallocate stack
|
||||
|
||||
# Open Child Image
|
||||
50 ; PUSH_RAX # allocate stack for child_image
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &child_image
|
||||
488B15 B1000000 ; LOAD64_rel_RDX %LOADED_IMAGE_PROTOCOL_8 # EFI_LOADED_IMAGE_PROTOCOL_GUID (last 64 bits)
|
||||
52 ; PUSH_RDX # push last 64 bits onto stack
|
||||
488B15 A1000000 ; LOAD64_rel_RDX %LOADED_IMAGE_PROTOCOL # EFI_LOADED_IMAGE_PROTOCOL_GUID (first 64 bits)
|
||||
52 ; PUSH_RDX # push first 64 bits onto
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &guid
|
||||
6A 01 ; PUSH !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
6A 00 ; PUSH !0 # arg5 = NULL
|
||||
4989F9 ; COPY_RDI_to_R9 # arg4 = child_ih
|
||||
4889F9 ; COPY_RDI_to_RCX # arg1 = child_ih
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 18010000 ; CALL_R14_Immediate32 %280 # system->boot->open_protocol(child_ih, &guid, &child_image, child_ih, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
4883C4 40 ; ADDI8_RSP !64 # deallocate stack
|
||||
58 ; POP_RAX # get child_image
|
||||
# Open Child Image [_start+0x260]
|
||||
4989F9 ; mov_r9,rdi # arg4 = child_ih
|
||||
488D15 10010000 ; lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
|
||||
52 ; push_rdx # save &LOADED_IMAGE_PROTOCOL
|
||||
4C89C9 ; mov_rcx,r9 # arg1 = child_ih
|
||||
E8 C6000000 ; call %open_protocol # open protocol
|
||||
|
||||
488958 38 ; STORE64_from_RBX_into_Address_RAX_Immediate8 !56 # child_image->load_options = command
|
||||
488970 30 ; STORE64_from_RSI_into_Address_RAX_Immediate8 !48 # set child_image->load_options_size
|
||||
488B0D EA000000 ; LOAD64_rel_RCX %image # get image
|
||||
488B49 18 ; LOAD64_into_RCX_from_Address_RCX_Immediate8 !24 # image->device
|
||||
488948 18 ; STORE64_from_RCX_into_Address_RCX_Immediate8 !24 # child_image->device = image->device
|
||||
488958 38 ; mov_[rax+BYTE],rbx !56 # child_image->load_options = command
|
||||
488970 30 ; mov_[rax+BYTE],rsi !48 # set child_image->load_options_size
|
||||
488B0D 76010000 ; mov_rcx,[rip+DWORD] %image # get image
|
||||
488B49 18 ; mov_rcx,[rcx+BYTE] !24 # image->device
|
||||
488948 18 ; mov_[rax+BYTE],rcx !24 # child_image->device = image->device
|
||||
|
||||
4989F8 ; mov_r8,rdi # arg3 = image_handle
|
||||
5A ; pop_rdx # arg2 = &LOADED_IMAGE_PROTOCOL
|
||||
4C89C1 ; mov_rcx,r8 # arg1 = image_handle
|
||||
E8 BC000000 ; call %close_protocol # close protocol
|
||||
|
||||
# Run command
|
||||
4D31C0 ; XOR_R8_R8 # arg3 = 0 (ExitData)
|
||||
31D2 ; XOR_EDX_EDX # arg2 = 0 (ExitData size)
|
||||
4889F9 ; COPY_RDI_to_RCX # arg1 = child_ih
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF96 D0000000 ; CALL_R14_Immediate32 %208 # system->boot->start_image()
|
||||
59 ; POP_RCX # deallocate stack
|
||||
59 ; POP_RCX # deallocate stack
|
||||
59 ; POP_RCX # deallocate stack
|
||||
4D31C0 ; xor_r8,r8 # arg3 = 0 (ExitData)
|
||||
31D2 ; xor_edx,edx # arg2 = 0 (ExitData size)
|
||||
4889F9 ; mov_rcx,rdi # arg1 = child_ih
|
||||
50 ; push_rax # allocate shadow stack space for UEFI
|
||||
50 ; push_rax # allocate shadow stack space for UEFI
|
||||
50 ; push_rax # allocate shadow stack space for UEFI
|
||||
41FF96 D0000000 ; call_[r14+DWORD] %208 # system->boot->start_image()
|
||||
59 ; pop_rcx # deallocate stack
|
||||
59 ; pop_rcx # deallocate stack
|
||||
59 ; pop_rcx # deallocate stack
|
||||
|
||||
85C0 ; TEST_EAX_EAX # check if return code is 0
|
||||
75 05 ; JNE8 !print_error # print error and exit
|
||||
E9 EAFDFFFF ; JMP32 %next_command # process another line from kaem script
|
||||
85C0 ; test_eax,eax # check if return code is 0
|
||||
75 05 ; jne8 !print_error # print error and exit
|
||||
E9 29FEFFFF ; jmp %next_command # process another line from kaem script
|
||||
|
||||
# :print_error [_start+0x323]
|
||||
50 ; PUSH_RAX # save exit code
|
||||
488D15 8E000000 ; LEA_RDX_rel %subprocess_error # get error message
|
||||
E8 16000000 ; CALLI32 %File_Print # print it
|
||||
58 ; POP_RAX # restore exit code
|
||||
# :print_error [_start+0x2B4]
|
||||
50 ; push_rax # save exit code
|
||||
488D15 0E010000 ; lea_rdx,[rip+DWORD] %subprocess_error # get error message
|
||||
E8 4D000000 ; call %File_Print # print it
|
||||
58 ; pop_rax # restore exit code
|
||||
|
||||
# Close script file and exit
|
||||
# :terminate [_start+0x331]
|
||||
# :terminate [_start+0x2C2]
|
||||
# Free pool
|
||||
4889D9 ; COPY_RBX_to_RCX # arg1 = command
|
||||
50 ; PUSH_RAX # save exit code
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; CALL_R14_Immediate8 !72 # system->boot->free_pool(commmand)
|
||||
4889D9 ; mov_rcx,rbx # arg1 = command
|
||||
50 ; push_rax # save exit code
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; call_[r14+BYTE] !72 # system->boot->free_pool(commmand)
|
||||
|
||||
4C89E1 ; COPY_R12_to_RCX # arg1 = fin
|
||||
FF51 10 ; CALL_RCX_Immediate8 !16 # fin->close(fin)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # restore exit code
|
||||
4C89E1 ; mov_rcx,r12 # arg1 = fin
|
||||
FF51 10 ; call_[rcx+BYTE] !16 # fin->close(fin)
|
||||
|
||||
488B0D 28010000 ; mov_rcx,[rip+DWORD] %rootdir # arg1 = rootdir
|
||||
FF51 10 ; call_[rcx+BYTE] !16 # rootdir->close(rootdir)
|
||||
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # restore exit code
|
||||
|
||||
# Exit without closing script file
|
||||
# :abort [_start+0x342]
|
||||
4889EC ; COPY_RBP_to_RSP # restore stack
|
||||
C3 ; RET
|
||||
# :terminate_2 [_start+0x2DD]
|
||||
4C8B05 0C010000 ; mov_r8,[rip+DWORD] %image_handle # arg3 = image_handle
|
||||
4150 ; push_r8 # save image_handle
|
||||
488D15 9D000000 ; lea_rdx,[rip+DWORD] %SIMPLE_FS_PROTOCOL # guid = &SIMPLE_FS_PROTOCOL
|
||||
488B0D 14010000 ; mov_rcx,[rip+DWORD] %root_device # arg1 = root_device
|
||||
E8 59000000 ; call %close_protocol # close protocol
|
||||
|
||||
# :File_Print [_start+0x346]
|
||||
488B0D A2000000 ; LOAD64_rel_RCX %system_out # get system_out
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; CALL_RCX_Immediate8 !8 # system->out->output_string(system->out, WCHAR*)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
C3 ; RET
|
||||
4158 ; pop_r8 # arg3 = image_handle
|
||||
488D15 78000000 ; lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
|
||||
4C89C1 ; mov_rcx,r8 # arg1 = image_handle
|
||||
E8 48000000 ; call %close_protocol # close protocol
|
||||
|
||||
# :abort [_start+0x30A]
|
||||
4889EC ; mov_rsp,rbp # restore stack
|
||||
C3 ; ret # return to UEFI
|
||||
|
||||
# :File_Print [_start+0x30E]
|
||||
488B0D FB000000 ; mov_rcx,[rip+DWORD] %system_out # get system_out
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function for UEFI function
|
||||
FF51 08 ; call_[rcx+BYTE] !8 # system->out->output_string(system->out, WCHAR*)
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
C3 ; ret
|
||||
|
||||
# read_byte function
|
||||
# reads a single character
|
||||
# :read_byte [_start+0x355]
|
||||
4C89E1 ; COPY_R12_to_RCX # arg1 = fin
|
||||
6A 01 ; PUSH !1 # size = 1
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &size
|
||||
56 ; PUSH_RSI # allocate stack
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &c
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
FF51 20 ; CALL_RCX_Immediate8 !32 # fin->read()
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # save c to rax
|
||||
59 ; POP_RCX # save size to rcx
|
||||
# :read_byte [_start+0x31D]
|
||||
4C89E1 ; mov_rcx,r12 # arg1 = fin
|
||||
6A 01 ; push !1 # size = 1
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &size
|
||||
56 ; push_rsi # allocate stack
|
||||
4989E0 ; mov_r8,rsp # arg3 = &c
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
FF51 20 ; call_[rcx+BYTE] !32 # fin->read()
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # save c to rax
|
||||
59 ; pop_rcx # save size to rcx
|
||||
|
||||
# If the file ended (0 bytes read) terminate
|
||||
85C9 ; TEST_ECX_ECX # if size = 0
|
||||
74 C1 ; JE8 !terminate # then we are done
|
||||
85C9 ; test_ecx,ecx # if size = 0
|
||||
74 8A ; je8 !terminate # then we are done
|
||||
|
||||
C3 ; RET # return
|
||||
C3 ; ret # return
|
||||
|
||||
# rcx: handle
|
||||
# rdx: &guid
|
||||
# r9: agent_handle
|
||||
# returns interface
|
||||
# :open_protocol [_start+0x339]
|
||||
50 ; push_rax # allocate stack for interface
|
||||
4989E0 ; mov_r8,rsp # arg3 = &interface
|
||||
6A 01 ; push !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
6A 00 ; push !0 # arg5 = NULL
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 18010000 ; call_[r14+DWORD] %280 # system->boot->open_protocol(handle, &guid, &interface, agent_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
4883C4 30 ; add_rsp, !48 # deallocate stack
|
||||
58 ; pop_rax # get image
|
||||
C3 ; ret
|
||||
|
||||
# rcx: handle
|
||||
# rdx: &guid
|
||||
# r8: agent_handle
|
||||
# :close_protocol [_start+0x352]
|
||||
4D31C9 ; xor_r9,r9 # arg4 = NULL
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 20010000 ; call_[r14+DWORD] %288 # system->boot->close_protocol(handle, &guid, agent_handle, 0)
|
||||
4883C4 20 ; add_rsp, !32 # deallocate stack
|
||||
C3 ; ret
|
||||
|
||||
# rdx: number of bytes to allocate
|
||||
# r14: system->boot
|
||||
# returns pointer in rax
|
||||
# :allocate_pool [_start+0x365]
|
||||
52 ; push_rdx # allocate stack for pool pointer
|
||||
4989E0 ; mov_r8,rsp # arg3 = &pool
|
||||
6A 02 ; push !2
|
||||
59 ; pop_rcx # arg1 = EFI_LOADER_DATA
|
||||
4883EC 18 ; sub_rsp, !24 # allocate shadow stack space for UEFI
|
||||
41FF56 40 ; call_[r14+BYTE] !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 2048, &pool)
|
||||
4883C4 18 ; add_rsp, !24 # deallocate stack
|
||||
58 ; pop_rax # get pool
|
||||
C3 ; ret
|
||||
|
||||
|
||||
# Protocol GUIDs
|
||||
# :LOADED_IMAGE_PROTOCOL [_start+0x371]
|
||||
# :LOADED_IMAGE_PROTOCOL [_start+0x37A]
|
||||
A1 31 1B 5B ; %0x5b1b31a1:SIMPLE_FS_PROTOCOL
|
||||
62 95 ; @0x9562 22 5B 4E 96 ; %0x0964e5b22
|
||||
D2 11 ; @0x11d2 59 64 ; @0x6459
|
||||
# :LOADED_IMAGE_PROTOCOL_8 [_start+0x379]
|
||||
8E 3F 00 A0 C9 69 72 3B ; !0x8e !0x3f !0 !0xa0 !0xc9 !0x69 !0x72 !0x3b
|
||||
|
||||
# :SIMPLE_FS_PROTOCOL [_start+0x381]
|
||||
# :SIMPLE_FS_PROTOCOL [_start+0x38A]
|
||||
22 5B 4E 96 ; %0x0964e5b22
|
||||
59 64 ; @0x6459
|
||||
D2 11 ; @0x11d2
|
||||
# :SIMPLE_FS_PROTOCOL_8 [_start+0x389]
|
||||
8E 39 00 A0 C9 69 72 3B ; !0x8e !0x39 !0 !0xa0 !0xc9 !0x69 !0x72 !0x3b
|
||||
|
||||
# :FILE_INFO_PROTOCOL [_start+0x391]
|
||||
# :FILE_INFO_PROTOCOL [_start+0x39A]
|
||||
92 6E 57 09 ; %0x09576e92
|
||||
3F 6D ; @0x6d3f
|
||||
D2 11 ; @0x11d2
|
||||
# last 64-bits of GUID are identical to SIMPLE_FS_PROTOCOL
|
||||
8E 39 00 A0 C9 69 72 3B ; !0x8e !0x39 !0 !0xa0 !0xc9 !0x69 !0x72 !0x3b
|
||||
|
||||
# :default_file [_start+0x399]
|
||||
# :default_file [_start+0x3AA]
|
||||
6B 00 61 00 65 00 6D 00 2E 00 61 00 6D 00 64 00 36 00 34 00 00 00 ; L"kaem.amd64"
|
||||
|
||||
# :prefix [_start+0x3AF]
|
||||
# :prefix [_start+0x3C0]
|
||||
20 00 2B 00 3E 00 20 00 00 00 ; L" +> "
|
||||
|
||||
# :subprocess_error [_start+0x3B9]
|
||||
# :subprocess_error [_start+0x3CA]
|
||||
53 00 75 00 62 00 70 00 72 00 6F 00 63 00 65 00
|
||||
73 00 73 00 20 00 65 00 72 00 72 00 6F 00 72 00
|
||||
# :suffix [_start+0x3D9]
|
||||
# :suffix [_start+0x3EA]
|
||||
0A 00 0D 00 00 00 ; L"Subprocess error\n\r"
|
||||
|
||||
# :image_handle [_start+0x3DF]
|
||||
# :image_handle [_start+0x3F0]
|
||||
00 00 00 00 00 00 00 00
|
||||
|
||||
# :image [_start+0x3E7]
|
||||
# :image [_start+0x3F8]
|
||||
00 00 00 00 00 00 00 00
|
||||
|
||||
# :system_out [_start+0x3EF]
|
||||
# :rootdir [_start+0x400]
|
||||
00 00 00 00 00 00 00 00
|
||||
|
||||
# :PE32_end [_start+0x3F7]
|
||||
# :root_device [_start+0x408]
|
||||
00 00 00 00 00 00 00 00
|
||||
|
||||
# :system_out [_start+0x410]
|
||||
00 00 00 00 00 00 00 00
|
||||
|
||||
# :PE32_end [_start+0x418]
|
||||
|
|
|
|||
Loading…
Reference in New Issue