Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 The Chromium OS Authors. All rights reserved. |
Randall Spangler | 7d6898d | 2010-06-11 09:22:13 -0700 | [diff] [blame] | 3 | * Use of this source code is governed by a BSD-style license that can be |
| 4 | * found in the LICENSE file. |
| 5 | * |
| 6 | * Verified boot kernel utility |
| 7 | */ |
| 8 | |
Bill Richardson | a08b5c9 | 2010-06-30 21:59:43 -0700 | [diff] [blame] | 9 | #include <errno.h> |
Vincent Palatin | 56c85db | 2012-09-05 15:35:12 -0700 | [diff] [blame] | 10 | #include <fcntl.h> |
Randall Spangler | 7d6898d | 2010-06-11 09:22:13 -0700 | [diff] [blame] | 11 | #include <getopt.h> |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 12 | #include <inttypes.h> /* For PRIu64 */ |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 13 | #include <linux/fs.h> /* For BLKGETSIZE64 */ |
Bill Richardson | 249677d | 2010-06-23 11:16:37 -0700 | [diff] [blame] | 14 | #include <stdarg.h> |
Randall Spangler | 7d6898d | 2010-06-11 09:22:13 -0700 | [diff] [blame] | 15 | #include <stdio.h> |
Bill Richardson | a08b5c9 | 2010-06-30 21:59:43 -0700 | [diff] [blame] | 16 | #include <string.h> |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 17 | #include <sys/ioctl.h> |
Bill Richardson | a08b5c9 | 2010-06-30 21:59:43 -0700 | [diff] [blame] | 18 | #include <sys/stat.h> |
Randall Spangler | 7d6898d | 2010-06-11 09:22:13 -0700 | [diff] [blame] | 19 | #include <unistd.h> |
| 20 | |
Bill Richardson | 6f39615 | 2014-07-15 12:52:19 -0700 | [diff] [blame] | 21 | #include "futility.h" |
Randall Spangler | 7d6898d | 2010-06-11 09:22:13 -0700 | [diff] [blame] | 22 | #include "host_common.h" |
| 23 | #include "kernel_blob.h" |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 24 | #include "vb1_helper.h" |
| 25 | |
| 26 | static void Fatal(const char *format, ...) |
| 27 | { |
| 28 | va_list ap; |
| 29 | va_start(ap, format); |
| 30 | fprintf(stderr, "ERROR: "); |
| 31 | vfprintf(stderr, format, ap); |
| 32 | va_end(ap); |
| 33 | exit(1); |
| 34 | } |
Randall Spangler | 7d6898d | 2010-06-11 09:22:13 -0700 | [diff] [blame] | 35 | |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 36 | /* Global opts */ |
Bill Richardson | 779796f | 2014-09-23 11:47:40 -0700 | [diff] [blame] | 37 | static int opt_verbose; |
| 38 | static int opt_vblockonly; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 39 | static uint64_t opt_pad = 65536; |
Bill Richardson | 249677d | 2010-06-23 11:16:37 -0700 | [diff] [blame] | 40 | |
Randall Spangler | 7d6898d | 2010-06-11 09:22:13 -0700 | [diff] [blame] | 41 | /* Command line options */ |
| 42 | enum { |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 43 | OPT_MODE_PACK = 1000, |
| 44 | OPT_MODE_REPACK, |
| 45 | OPT_MODE_VERIFY, |
| 46 | OPT_ARCH, |
| 47 | OPT_OLDBLOB, |
| 48 | OPT_KLOADADDR, |
| 49 | OPT_KEYBLOCK, |
| 50 | OPT_SIGNPUBKEY, |
| 51 | OPT_SIGNPRIVATE, |
| 52 | OPT_VERSION, |
| 53 | OPT_VMLINUZ, |
| 54 | OPT_BOOTLOADER, |
| 55 | OPT_CONFIG, |
| 56 | OPT_VBLOCKONLY, |
| 57 | OPT_PAD, |
| 58 | OPT_VERBOSE, |
| 59 | OPT_MINVERSION, |
Randall Spangler | 7d6898d | 2010-06-11 09:22:13 -0700 | [diff] [blame] | 60 | }; |
| 61 | |
Mike Frysinger | 7351ed7 | 2014-08-18 10:47:42 -0400 | [diff] [blame] | 62 | static const struct option long_opts[] = { |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 63 | {"pack", 1, 0, OPT_MODE_PACK}, |
| 64 | {"repack", 1, 0, OPT_MODE_REPACK}, |
| 65 | {"verify", 1, 0, OPT_MODE_VERIFY}, |
| 66 | {"arch", 1, 0, OPT_ARCH}, |
| 67 | {"oldblob", 1, 0, OPT_OLDBLOB}, |
| 68 | {"kloadaddr", 1, 0, OPT_KLOADADDR}, |
| 69 | {"keyblock", 1, 0, OPT_KEYBLOCK}, |
| 70 | {"signpubkey", 1, 0, OPT_SIGNPUBKEY}, |
| 71 | {"signprivate", 1, 0, OPT_SIGNPRIVATE}, |
| 72 | {"version", 1, 0, OPT_VERSION}, |
| 73 | {"minversion", 1, 0, OPT_MINVERSION}, |
| 74 | {"vmlinuz", 1, 0, OPT_VMLINUZ}, |
| 75 | {"bootloader", 1, 0, OPT_BOOTLOADER}, |
| 76 | {"config", 1, 0, OPT_CONFIG}, |
| 77 | {"vblockonly", 0, 0, OPT_VBLOCKONLY}, |
| 78 | {"pad", 1, 0, OPT_PAD}, |
| 79 | {"verbose", 0, &opt_verbose, 1}, |
Bill Richardson | e192e7f | 2014-09-23 12:49:26 -0700 | [diff] [blame] | 80 | {"debug", 0, &debugging_enabled, 1}, |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 81 | {NULL, 0, 0, 0} |
Randall Spangler | 7d6898d | 2010-06-11 09:22:13 -0700 | [diff] [blame] | 82 | }; |
| 83 | |
| 84 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 85 | |
| 86 | static const char usage[] = |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 87 | "\n" |
Bill Richardson | 779796f | 2014-09-23 11:47:40 -0700 | [diff] [blame] | 88 | "Usage: " MYNAME " %s --pack <file> [PARAMETERS]\n" |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 89 | "\n" |
| 90 | " Required parameters:\n" |
| 91 | " --keyblock <file> Key block in .keyblock format\n" |
| 92 | " --signprivate <file> Private key to sign kernel data,\n" |
| 93 | " in .vbprivk format\n" |
| 94 | " --version <number> Kernel version\n" |
| 95 | " --vmlinuz <file> Linux kernel bzImage file\n" |
| 96 | " --bootloader <file> Bootloader stub\n" |
| 97 | " --config <file> Command line file\n" |
| 98 | " --arch <arch> Cpu architecture (default x86)\n" |
| 99 | "\n" |
| 100 | " Optional:\n" |
| 101 | " --kloadaddr <address> Assign kernel body load address\n" |
| 102 | " --pad <number> Verification padding size in bytes\n" |
| 103 | " --vblockonly Emit just the verification blob\n" |
| 104 | "\nOR\n\n" |
Bill Richardson | 779796f | 2014-09-23 11:47:40 -0700 | [diff] [blame] | 105 | "Usage: " MYNAME " %s --repack <file> [PARAMETERS]\n" |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 106 | "\n" |
| 107 | " Required parameters:\n" |
| 108 | " --signprivate <file> Private key to sign kernel data,\n" |
| 109 | " in .vbprivk format\n" |
| 110 | " --oldblob <file> Previously packed kernel blob\n" |
| 111 | " (including verfication blob)\n" |
| 112 | "\n" |
| 113 | " Optional:\n" |
| 114 | " --keyblock <file> Key block in .keyblock format\n" |
| 115 | " --config <file> New command line file\n" |
| 116 | " --version <number> Kernel version\n" |
| 117 | " --kloadaddr <address> Assign kernel body load address\n" |
| 118 | " --pad <number> Verification blob size in bytes\n" |
| 119 | " --vblockonly Emit just the verification blob\n" |
| 120 | "\nOR\n\n" |
Bill Richardson | 779796f | 2014-09-23 11:47:40 -0700 | [diff] [blame] | 121 | "Usage: " MYNAME " %s --verify <file> [PARAMETERS]\n" |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 122 | "\n" |
| 123 | " Optional:\n" |
| 124 | " --signpubkey <file>" |
| 125 | " Public key to verify kernel keyblock,\n" |
| 126 | " in .vbpubk format\n" |
| 127 | " --verbose Print a more detailed report\n" |
| 128 | " --keyblock <file> Outputs the verified key block,\n" |
| 129 | " in .keyblock format\n" |
| 130 | " --pad <number> Verification padding size in bytes\n" |
| 131 | " --minversion <number> Minimum combined kernel key version\n" |
| 132 | " and kernel version\n" |
| 133 | "\n"; |
| 134 | |
| 135 | |
Randall Spangler | 7d6898d | 2010-06-11 09:22:13 -0700 | [diff] [blame] | 136 | /* Print help and return error */ |
Bill Richardson | 779796f | 2014-09-23 11:47:40 -0700 | [diff] [blame] | 137 | static void print_help(const char *progname) |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 138 | { |
Bill Richardson | 779796f | 2014-09-23 11:47:40 -0700 | [diff] [blame] | 139 | printf(usage, progname, progname, progname); |
Randall Spangler | 7d6898d | 2010-06-11 09:22:13 -0700 | [diff] [blame] | 140 | } |
| 141 | |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 142 | |
Bill Richardson | 2f6a71f | 2010-10-14 09:25:39 -0700 | [diff] [blame] | 143 | /* Return an explanation when fread() fails. */ |
Bill Richardson | 779796f | 2014-09-23 11:47:40 -0700 | [diff] [blame] | 144 | static const char *error_fread(FILE *fp) |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 145 | { |
| 146 | const char *retval = "beats me why"; |
| 147 | if (feof(fp)) |
| 148 | retval = "EOF"; |
| 149 | else if (ferror(fp)) |
| 150 | retval = strerror(errno); |
| 151 | clearerr(fp); |
| 152 | return retval; |
Bill Richardson | 2f6a71f | 2010-10-14 09:25:39 -0700 | [diff] [blame] | 153 | } |
Randall Spangler | 7d6898d | 2010-06-11 09:22:13 -0700 | [diff] [blame] | 154 | |
Randall Spangler | 7d6898d | 2010-06-11 09:22:13 -0700 | [diff] [blame] | 155 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 156 | /* This reads a complete kernel partition into a buffer */ |
| 157 | static uint8_t *ReadOldKPartFromFileOrDie(const char *filename, |
Bill Richardson | 779796f | 2014-09-23 11:47:40 -0700 | [diff] [blame] | 158 | uint64_t *size_ptr) |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 159 | { |
| 160 | FILE *fp = NULL; |
| 161 | struct stat statbuf; |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 162 | uint8_t *buf; |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 163 | uint64_t file_size = 0; |
Bill Richardson | a08b5c9 | 2010-06-30 21:59:43 -0700 | [diff] [blame] | 164 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 165 | if (0 != stat(filename, &statbuf)) |
| 166 | Fatal("Unable to stat %s: %s\n", filename, strerror(errno)); |
Bill Richardson | a08b5c9 | 2010-06-30 21:59:43 -0700 | [diff] [blame] | 167 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 168 | if (S_ISBLK(statbuf.st_mode)) { |
Bill Richardson | 779796f | 2014-09-23 11:47:40 -0700 | [diff] [blame] | 169 | int fd = open(filename, O_RDONLY); |
| 170 | if (fd >= 0) { |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 171 | ioctl(fd, BLKGETSIZE64, &file_size); |
| 172 | close(fd); |
| 173 | } |
| 174 | } else { |
| 175 | file_size = statbuf.st_size; |
| 176 | } |
| 177 | Debug("%s size is 0x%" PRIx64 "\n", filename, file_size); |
| 178 | if (file_size < opt_pad) |
| 179 | Fatal("%s is too small to be a valid kernel blob\n"); |
Bill Richardson | a08b5c9 | 2010-06-30 21:59:43 -0700 | [diff] [blame] | 180 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 181 | Debug("Reading %s\n", filename); |
| 182 | fp = fopen(filename, "rb"); |
| 183 | if (!fp) |
| 184 | Fatal("Unable to open file %s: %s\n", filename, |
| 185 | strerror(errno)); |
Bill Richardson | a08b5c9 | 2010-06-30 21:59:43 -0700 | [diff] [blame] | 186 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 187 | buf = malloc(file_size); |
| 188 | if (1 != fread(buf, file_size, 1, fp)) |
| 189 | Fatal("Unable to read entirety of %s: %s\n", filename, |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 190 | error_fread(fp)); |
vbendeb | b2b0fcc | 2010-07-15 15:09:47 -0700 | [diff] [blame] | 191 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 192 | if (size_ptr) |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 193 | *size_ptr = file_size; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 194 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 195 | return buf; |
Randall Spangler | 7d6898d | 2010-06-11 09:22:13 -0700 | [diff] [blame] | 196 | } |
| 197 | |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 198 | /****************************************************************************/ |
Randall Spangler | 7d6898d | 2010-06-11 09:22:13 -0700 | [diff] [blame] | 199 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 200 | static int do_vbutil_kernel2(int argc, char *argv[]) |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 201 | { |
| 202 | char *filename = NULL; |
| 203 | char *oldfile = NULL; |
| 204 | char *keyblock_file = NULL; |
| 205 | char *signpubkey_file = NULL; |
| 206 | char *signprivkey_file = NULL; |
| 207 | char *version_str = NULL; |
| 208 | int version = -1; |
| 209 | char *vmlinuz_file = NULL; |
| 210 | char *bootloader_file = NULL; |
| 211 | char *config_file = NULL; |
Bill Richardson | e192e7f | 2014-09-23 12:49:26 -0700 | [diff] [blame] | 212 | enum arch_t arch = ARCH_X86; |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 213 | uint64_t kernel_body_load_address = CROS_32BIT_ENTRY_ADDR; |
| 214 | int mode = 0; |
| 215 | int parse_error = 0; |
| 216 | uint64_t min_version = 0; |
| 217 | char *e; |
| 218 | int i; |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 219 | int rv; |
| 220 | VbKeyBlockHeader *keyblock = NULL; |
| 221 | VbKeyBlockHeader *t_keyblock = NULL; |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 222 | VbPrivateKey *signpriv_key = NULL; |
| 223 | VbPublicKey *signpub_key = NULL; |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 224 | uint8_t *kpart_data = NULL; |
| 225 | uint64_t kpart_size = 0; |
| 226 | uint8_t *vmlinuz_buf = NULL; |
| 227 | uint64_t vmlinuz_size = 0; |
| 228 | uint8_t *t_config_data; |
| 229 | uint64_t t_config_size; |
| 230 | uint8_t *t_bootloader_data; |
| 231 | uint64_t t_bootloader_size; |
| 232 | VbKernelPreambleHeader *preamble = NULL; |
| 233 | uint8_t *kblob_data = NULL; |
| 234 | uint64_t kblob_size = 0; |
| 235 | uint8_t *vblock_data = NULL; |
| 236 | uint64_t vblock_size = 0; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 237 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 238 | while (((i = getopt_long(argc, argv, ":", long_opts, NULL)) != -1) && |
| 239 | !parse_error) { |
| 240 | switch (i) { |
| 241 | default: |
| 242 | case '?': |
| 243 | /* Unhandled option */ |
| 244 | parse_error = 1; |
| 245 | break; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 246 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 247 | case 0: |
| 248 | /* silently handled option */ |
| 249 | break; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 250 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 251 | case OPT_MODE_PACK: |
| 252 | case OPT_MODE_REPACK: |
| 253 | case OPT_MODE_VERIFY: |
| 254 | if (mode && (mode != i)) { |
| 255 | fprintf(stderr, |
| 256 | "Only one mode can be specified\n"); |
| 257 | parse_error = 1; |
| 258 | break; |
| 259 | } |
| 260 | mode = i; |
| 261 | filename = optarg; |
| 262 | break; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 263 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 264 | case OPT_ARCH: |
| 265 | /* check the first 3 characters to also detect x86_64 */ |
| 266 | if ((!strncasecmp(optarg, "x86", 3)) || |
| 267 | (!strcasecmp(optarg, "amd64"))) |
| 268 | arch = ARCH_X86; |
| 269 | else if ((!strcasecmp(optarg, "arm")) || |
| 270 | (!strcasecmp(optarg, "aarch64"))) |
| 271 | arch = ARCH_ARM; |
| 272 | else if (!strcasecmp(optarg, "mips")) |
| 273 | arch = ARCH_MIPS; |
| 274 | else { |
| 275 | fprintf(stderr, |
| 276 | "Unknown architecture string: %s\n", |
| 277 | optarg); |
| 278 | parse_error = 1; |
| 279 | } |
| 280 | break; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 281 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 282 | case OPT_OLDBLOB: |
| 283 | oldfile = optarg; |
| 284 | break; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 285 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 286 | case OPT_KLOADADDR: |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 287 | kernel_body_load_address = strtoul(optarg, &e, 0); |
| 288 | if (!*optarg || (e && *e)) { |
| 289 | fprintf(stderr, "Invalid --kloadaddr\n"); |
| 290 | parse_error = 1; |
| 291 | } |
| 292 | break; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 293 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 294 | case OPT_KEYBLOCK: |
| 295 | keyblock_file = optarg; |
| 296 | break; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 297 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 298 | case OPT_SIGNPUBKEY: |
| 299 | signpubkey_file = optarg; |
| 300 | break; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 301 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 302 | case OPT_SIGNPRIVATE: |
| 303 | signprivkey_file = optarg; |
| 304 | break; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 305 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 306 | case OPT_VMLINUZ: |
| 307 | vmlinuz_file = optarg; |
| 308 | break; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 309 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 310 | case OPT_BOOTLOADER: |
| 311 | bootloader_file = optarg; |
| 312 | break; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 313 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 314 | case OPT_CONFIG: |
| 315 | config_file = optarg; |
| 316 | break; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 317 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 318 | case OPT_VBLOCKONLY: |
| 319 | opt_vblockonly = 1; |
| 320 | break; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 321 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 322 | case OPT_VERSION: |
| 323 | version_str = optarg; |
| 324 | version = strtoul(optarg, &e, 0); |
| 325 | if (!*optarg || (e && *e)) { |
| 326 | fprintf(stderr, "Invalid --version\n"); |
| 327 | parse_error = 1; |
| 328 | } |
| 329 | break; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 330 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 331 | case OPT_MINVERSION: |
| 332 | min_version = strtoul(optarg, &e, 0); |
| 333 | if (!*optarg || (e && *e)) { |
| 334 | fprintf(stderr, "Invalid --minversion\n"); |
| 335 | parse_error = 1; |
| 336 | } |
| 337 | break; |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 338 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 339 | case OPT_PAD: |
| 340 | opt_pad = strtoul(optarg, &e, 0); |
| 341 | if (!*optarg || (e && *e)) { |
| 342 | fprintf(stderr, "Invalid --pad\n"); |
| 343 | parse_error = 1; |
| 344 | } |
| 345 | break; |
| 346 | } |
| 347 | } |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 348 | |
Bill Richardson | 779796f | 2014-09-23 11:47:40 -0700 | [diff] [blame] | 349 | if (parse_error) { |
| 350 | print_help(argv[0]); |
| 351 | return 1; |
| 352 | } |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 353 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 354 | switch (mode) { |
| 355 | case OPT_MODE_PACK: |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 356 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 357 | if (!keyblock_file) |
| 358 | Fatal("Missing required keyblock file.\n"); |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 359 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 360 | t_keyblock = (VbKeyBlockHeader *)ReadFile(keyblock_file, 0); |
| 361 | if (!t_keyblock) |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 362 | Fatal("Error reading key block.\n"); |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 363 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 364 | if (!signprivkey_file) |
| 365 | Fatal("Missing required signprivate file.\n"); |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 366 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 367 | signpriv_key = PrivateKeyRead(signprivkey_file); |
| 368 | if (!signpriv_key) |
| 369 | Fatal("Error reading signing key.\n"); |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 370 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 371 | if (!config_file) |
| 372 | Fatal("Missing required config file.\n"); |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 373 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 374 | Debug("Reading %s\n", config_file); |
| 375 | t_config_data = |
| 376 | ReadConfigFile(config_file, &t_config_size); |
| 377 | if (!t_config_data) |
| 378 | Fatal("Error reading config file.\n"); |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 379 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 380 | if (!bootloader_file) |
| 381 | Fatal("Missing required bootloader file.\n"); |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 382 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 383 | Debug("Reading %s\n", bootloader_file); |
| 384 | t_bootloader_data = ReadFile(bootloader_file, |
| 385 | &t_bootloader_size); |
| 386 | if (!t_bootloader_data) |
| 387 | Fatal("Error reading bootloader file.\n"); |
| 388 | Debug(" bootloader file size=0x%" PRIx64 "\n", |
| 389 | t_bootloader_size); |
Bill Richardson | 72e344d | 2012-03-19 12:47:18 -0700 | [diff] [blame] | 390 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 391 | if (!vmlinuz_file) |
| 392 | Fatal("Missing required vmlinuz file.\n"); |
| 393 | Debug("Reading %s\n", vmlinuz_file); |
| 394 | vmlinuz_buf = ReadFile(vmlinuz_file, &vmlinuz_size); |
| 395 | if (!vmlinuz_buf) |
| 396 | Fatal("Error reading vmlinuz file.\n"); |
| 397 | Debug(" vmlinuz file size=0x%" PRIx64 "\n", |
| 398 | vmlinuz_size); |
| 399 | if (!vmlinuz_size) |
| 400 | Fatal("Empty vmlinuz file\n"); |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 401 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 402 | kblob_data = CreateKernelBlob( |
| 403 | vmlinuz_buf, vmlinuz_size, |
| 404 | arch, kernel_body_load_address, |
| 405 | t_config_data, t_config_size, |
| 406 | t_bootloader_data, t_bootloader_size, |
| 407 | &kblob_size); |
| 408 | if (!kblob_data) |
| 409 | Fatal("Unable to create kernel blob\n"); |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 410 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 411 | Debug("kblob_size = 0x%" PRIx64 "\n", kblob_size); |
| 412 | |
| 413 | vblock_data = SignKernelBlob(kblob_data, kblob_size, opt_pad, |
| 414 | version, kernel_body_load_address, |
| 415 | t_keyblock, signpriv_key, |
| 416 | &vblock_size); |
| 417 | if (!vblock_data) |
| 418 | Fatal("Unable to sign kernel blob\n"); |
| 419 | |
| 420 | Debug("vblock_size = 0x%" PRIx64 "\n", vblock_size); |
| 421 | |
| 422 | if (opt_vblockonly) |
| 423 | rv = WriteSomeParts(filename, |
| 424 | vblock_data, vblock_size, |
| 425 | NULL, 0); |
| 426 | else |
| 427 | rv = WriteSomeParts(filename, |
| 428 | vblock_data, vblock_size, |
| 429 | kblob_data, kblob_size); |
| 430 | return rv; |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 431 | |
| 432 | case OPT_MODE_REPACK: |
| 433 | |
| 434 | /* Required */ |
| 435 | |
| 436 | if (!signprivkey_file) |
| 437 | Fatal("Missing required signprivate file.\n"); |
| 438 | |
| 439 | signpriv_key = PrivateKeyRead(signprivkey_file); |
| 440 | if (!signpriv_key) |
| 441 | Fatal("Error reading signing key.\n"); |
| 442 | |
| 443 | if (!oldfile) |
| 444 | Fatal("Missing previously packed blob.\n"); |
| 445 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 446 | /* Load the kernel partition */ |
| 447 | kpart_data = ReadOldKPartFromFileOrDie(oldfile, &kpart_size); |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 448 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 449 | kblob_data = UnpackKPart(kpart_data, kpart_size, opt_pad, |
| 450 | &keyblock, &preamble, &kblob_size); |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 451 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 452 | if (!kblob_data) |
| 453 | Fatal("Unable to unpack kernel partition\n"); |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 454 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 455 | kernel_body_load_address = preamble->body_load_address; |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 456 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 457 | /* Update the config if asked */ |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 458 | if (config_file) { |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 459 | Debug("Reading %s\n", config_file); |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 460 | t_config_data = |
| 461 | ReadConfigFile(config_file, &t_config_size); |
| 462 | if (!t_config_data) |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 463 | Fatal("Error reading config file.\n"); |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 464 | if (0 != UpdateKernelBlobConfig( |
| 465 | kblob_data, kblob_size, |
| 466 | t_config_data, t_config_size)) |
| 467 | Fatal("Unable to update config\n"); |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 468 | } |
| 469 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 470 | if (!version_str) |
| 471 | version = preamble->kernel_version; |
| 472 | |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 473 | if (keyblock_file) { |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 474 | t_keyblock = |
| 475 | (VbKeyBlockHeader *)ReadFile(keyblock_file, 0); |
| 476 | if (!t_keyblock) |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 477 | Fatal("Error reading key block.\n"); |
| 478 | } |
| 479 | |
Bill Richardson | f1dba02 | 2014-10-01 14:10:45 -0700 | [diff] [blame^] | 480 | /* Reuse previous body size */ |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 481 | vblock_data = SignKernelBlob(kblob_data, kblob_size, opt_pad, |
| 482 | version, kernel_body_load_address, |
| 483 | t_keyblock ? t_keyblock : keyblock, |
| 484 | signpriv_key, &vblock_size); |
| 485 | if (!vblock_data) |
| 486 | Fatal("Unable to sign kernel blob\n"); |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 487 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 488 | if (opt_vblockonly) |
| 489 | rv = WriteSomeParts(filename, |
| 490 | vblock_data, vblock_size, |
| 491 | NULL, 0); |
| 492 | else |
| 493 | rv = WriteSomeParts(filename, |
| 494 | vblock_data, vblock_size, |
| 495 | kblob_data, kblob_size); |
| 496 | return rv; |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 497 | |
| 498 | case OPT_MODE_VERIFY: |
| 499 | |
| 500 | /* Optional */ |
| 501 | |
| 502 | if (signpubkey_file) { |
| 503 | signpub_key = PublicKeyRead(signpubkey_file); |
| 504 | if (!signpub_key) |
| 505 | Fatal("Error reading public key.\n"); |
| 506 | } |
| 507 | |
| 508 | /* Do it */ |
| 509 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 510 | /* Load the kernel partition */ |
| 511 | kpart_data = ReadOldKPartFromFileOrDie(filename, &kpart_size); |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 512 | |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 513 | kblob_data = UnpackKPart(kpart_data, kpart_size, opt_pad, |
| 514 | 0, 0, &kblob_size); |
| 515 | if (!kblob_data) |
| 516 | Fatal("Unable to unpack kernel partition\n"); |
| 517 | |
| 518 | rv = VerifyKernelBlob(kblob_data, kblob_size, |
| 519 | signpub_key, keyblock_file, min_version); |
| 520 | |
| 521 | return rv; |
Bill Richardson | 31d95c2 | 2014-08-24 22:07:17 -0700 | [diff] [blame] | 522 | } |
| 523 | |
| 524 | fprintf(stderr, |
| 525 | "You must specify a mode: --pack, --repack or --verify\n"); |
Bill Richardson | 779796f | 2014-09-23 11:47:40 -0700 | [diff] [blame] | 526 | print_help(argv[0]); |
| 527 | return 1; |
Randall Spangler | 7d6898d | 2010-06-11 09:22:13 -0700 | [diff] [blame] | 528 | } |
Bill Richardson | 6f39615 | 2014-07-15 12:52:19 -0700 | [diff] [blame] | 529 | |
Bill Richardson | f1dba02 | 2014-10-01 14:10:45 -0700 | [diff] [blame^] | 530 | DECLARE_FUTIL_COMMAND(vbutil_kernel2, do_vbutil_kernel2, |
Bill Richardson | f318ee2 | 2014-09-23 14:30:30 -0700 | [diff] [blame] | 531 | "Creates, signs, and verifies the kernel partition", |
Bill Richardson | 779796f | 2014-09-23 11:47:40 -0700 | [diff] [blame] | 532 | print_help); |