1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include "bootimg_utils.h" 30 31 #include "fastboot.h" 32 33 #include <stdio.h> 34 #include <stdlib.h> 35 #include <string.h> 36 37 void bootimg_set_cmdline(boot_img_hdr_v1* h, const char* cmdline) { 38 if (strlen(cmdline) >= sizeof(h->cmdline)) die("command line too large: %zu", strlen(cmdline)); 39 strcpy(reinterpret_cast<char*>(h->cmdline), cmdline); 40 } 41 42 boot_img_hdr_v1* mkbootimg(void* kernel, int64_t kernel_size, off_t kernel_offset, void* ramdisk, 43 int64_t ramdisk_size, off_t ramdisk_offset, void* second, 44 int64_t second_size, off_t second_offset, size_t page_size, size_t base, 45 off_t tags_offset, uint32_t header_version, int64_t* bootimg_size) { 46 size_t page_mask = page_size - 1; 47 48 int64_t header_actual = (sizeof(boot_img_hdr_v1) + page_mask) & (~page_mask); 49 int64_t kernel_actual = (kernel_size + page_mask) & (~page_mask); 50 int64_t ramdisk_actual = (ramdisk_size + page_mask) & (~page_mask); 51 int64_t second_actual = (second_size + page_mask) & (~page_mask); 52 53 *bootimg_size = header_actual + kernel_actual + ramdisk_actual + second_actual; 54 55 boot_img_hdr_v1* hdr = reinterpret_cast<boot_img_hdr_v1*>(calloc(*bootimg_size, 1)); 56 if (hdr == nullptr) { 57 return hdr; 58 } 59 60 memcpy(hdr->magic, BOOT_MAGIC, BOOT_MAGIC_SIZE); 61 62 hdr->kernel_size = kernel_size; 63 hdr->ramdisk_size = ramdisk_size; 64 hdr->second_size = second_size; 65 66 hdr->kernel_addr = base + kernel_offset; 67 hdr->ramdisk_addr = base + ramdisk_offset; 68 hdr->second_addr = base + second_offset; 69 hdr->tags_addr = base + tags_offset; 70 71 hdr->page_size = page_size; 72 73 if (header_version) { 74 hdr->header_version = header_version; 75 hdr->header_size = sizeof(boot_img_hdr_v1); 76 } 77 78 memcpy(hdr->magic + page_size, kernel, kernel_size); 79 memcpy(hdr->magic + page_size + kernel_actual, ramdisk, ramdisk_size); 80 memcpy(hdr->magic + page_size + kernel_actual + ramdisk_actual, second, second_size); 81 return hdr; 82 } 83
