void arcit(char *inname) { struct _fizhdr fh; char *p; long pos; if ((infile=fopen(inname, "rb"))==NULL) err_open(inname); printf("archiving %s", inname); fflush(stdout); origsize=compsize=unpackable=0; crc=INIT_CRC; pos=ftell(outfile); if (fwrite((char *)&fh, sizeof(fh), 1, outfile) != 1) err_write("archive"); /* strip off the path specification */ if ((p=strrchr(inname, '\\'))==NULL) p=inname; else p++; if (fwrite(p, strlen(p), 1, outfile) != 1) err_write("archive"); encode(); if (unpackable) { printf("storing"); fflush(stdout); fh.method=0; fseek(outfile, pos+sizeof(fh)+strlen(p), SEEK_SET); fseek(infile, 0L, SEEK_SET); store(); } else { fh.method=1; } fh.id=FIZ_ID; fh.fnlen=strlen(p); fh.origsize=origsize; fh.compsize=compsize; fh.crc = crc; get_fdt(fileno(infile), &fh.date); fseek(outfile, pos, SEEK_SET); if (fwrite((char *)&fh, sizeof(fh), 1, outfile) != 1) err_write("archive"); fseek(outfile, 0L, SEEK_END); fclose(infile); printf("\n"); }
/* * EFI entry point for the arm/arm64 EFI stubs. This is the entrypoint * that is described in the PE/COFF header. Most of the code is the same * for both archictectures, with the arch-specific code provided in the * handle_kernel_image() function. */ unsigned long efi_entry(void *handle, efi_system_table_t *sys_table, unsigned long *image_addr) { efi_loaded_image_t *image; efi_status_t status; unsigned long image_size = 0; unsigned long dram_base; /* addr/point and size pairs for memory management*/ unsigned long initrd_addr; u64 initrd_size = 0; unsigned long fdt_addr = 0; /* Original DTB */ unsigned long fdt_size = 0; char *cmdline_ptr = NULL; int cmdline_size = 0; unsigned long new_fdt_addr; efi_guid_t loaded_image_proto = LOADED_IMAGE_PROTOCOL_GUID; unsigned long reserve_addr = 0; unsigned long reserve_size = 0; int secure_boot = 0; struct screen_info *si; /* Check if we were booted by the EFI firmware */ if (sys_table->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE) goto fail; pr_efi(sys_table, "Booting Linux Kernel...\n"); status = check_platform_features(sys_table); if (status != EFI_SUCCESS) goto fail; /* * Get a handle to the loaded image protocol. This is used to get * information about the running image, such as size and the command * line. */ status = sys_table->boottime->handle_protocol(handle, &loaded_image_proto, (void *)&image); if (status != EFI_SUCCESS) { pr_efi_err(sys_table, "Failed to get loaded image protocol\n"); goto fail; } dram_base = get_dram_base(sys_table); if (dram_base == EFI_ERROR) { pr_efi_err(sys_table, "Failed to find DRAM base\n"); goto fail; } /* * Get the command line from EFI, using the LOADED_IMAGE * protocol. We are going to copy the command line into the * device tree, so this can be allocated anywhere. */ cmdline_ptr = efi_convert_cmdline(sys_table, image, &cmdline_size); if (!cmdline_ptr) { pr_efi_err(sys_table, "getting command line via LOADED_IMAGE_PROTOCOL\n"); goto fail; } /* check whether 'nokaslr' was passed on the command line */ if (IS_ENABLED(CONFIG_RANDOMIZE_BASE)) { static const u8 default_cmdline[] = CONFIG_CMDLINE; const u8 *str, *cmdline = cmdline_ptr; if (IS_ENABLED(CONFIG_CMDLINE_FORCE)) cmdline = default_cmdline; str = strstr(cmdline, "nokaslr"); if (str == cmdline || (str > cmdline && *(str - 1) == ' ')) __nokaslr = true; } si = setup_graphics(sys_table); status = handle_kernel_image(sys_table, image_addr, &image_size, &reserve_addr, &reserve_size, dram_base, image); if (status != EFI_SUCCESS) { pr_efi_err(sys_table, "Failed to relocate kernel\n"); goto fail_free_cmdline; } status = efi_parse_options(cmdline_ptr); if (status != EFI_SUCCESS) pr_efi_err(sys_table, "Failed to parse EFI cmdline options\n"); secure_boot = efi_get_secureboot(sys_table); if (secure_boot > 0) pr_efi(sys_table, "UEFI Secure Boot is enabled.\n"); if (secure_boot < 0) { pr_efi_err(sys_table, "could not determine UEFI Secure Boot status.\n"); } /* * Unauthenticated device tree data is a security hazard, so * ignore 'dtb=' unless UEFI Secure Boot is disabled. */ if (secure_boot != 0 && strstr(cmdline_ptr, "dtb=")) { pr_efi(sys_table, "Ignoring DTB from command line.\n"); } else { status = handle_cmdline_files(sys_table, image, cmdline_ptr, "dtb=", ~0UL, &fdt_addr, &fdt_size); if (status != EFI_SUCCESS) { pr_efi_err(sys_table, "Failed to load device tree!\n"); goto fail_free_image; } } if (fdt_addr) { pr_efi(sys_table, "Using DTB from command line\n"); } else { /* Look for a device tree configuration table entry. */ fdt_addr = (uintptr_t)get_fdt(sys_table, &fdt_size); if (fdt_addr) pr_efi(sys_table, "Using DTB from configuration table\n"); } if (!fdt_addr) pr_efi(sys_table, "Generating empty DTB\n"); status = handle_cmdline_files(sys_table, image, cmdline_ptr, "initrd=", dram_base + SZ_512M, (unsigned long *)&initrd_addr, (unsigned long *)&initrd_size); if (status != EFI_SUCCESS) pr_efi_err(sys_table, "Failed initrd from command line!\n"); efi_random_get_seed(sys_table); new_fdt_addr = fdt_addr; status = allocate_new_fdt_and_exit_boot(sys_table, handle, &new_fdt_addr, dram_base + MAX_FDT_OFFSET, initrd_addr, initrd_size, cmdline_ptr, fdt_addr, fdt_size); /* * If all went well, we need to return the FDT address to the * calling function so it can be passed to kernel as part of * the kernel boot protocol. */ if (status == EFI_SUCCESS) return new_fdt_addr; pr_efi_err(sys_table, "Failed to update FDT and exit boot services\n"); efi_free(sys_table, initrd_size, initrd_addr); efi_free(sys_table, fdt_size, fdt_addr); fail_free_image: efi_free(sys_table, image_size, *image_addr); efi_free(sys_table, reserve_size, reserve_addr); fail_free_cmdline: free_screen_info(sys_table, si); efi_free(sys_table, cmdline_size, (unsigned long)cmdline_ptr); fail: return EFI_ERROR; }