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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 | # SPDX-License-Identifier: GPL-2.0+ # Copyright (c) 2019, Linaro Limited # Author: AKASHI Takahiro <takahiro.akashi@linaro.org> # # U-Boot UEFI: Signed Image Authentication Test """ This test verifies image authentication for signed images. """ import pytest @pytest.mark.boardspec('sandbox') @pytest.mark.buildconfigspec('efi_secure_boot') @pytest.mark.buildconfigspec('cmd_efidebug') @pytest.mark.buildconfigspec('cmd_fat') @pytest.mark.buildconfigspec('cmd_nvedit_efi') @pytest.mark.slow class TestEfiSignedImage(object): def test_efi_signed_image_auth1(self, u_boot_console, efi_boot_env): """ Test Case 1 - Secure boot is not in force """ u_boot_console.restart_uboot() disk_img = efi_boot_env with u_boot_console.log.section('Test Case 1a'): # Test Case 1a, run signed image if no PK output = u_boot_console.run_command_list([ 'host bind 0 %s' % disk_img, 'efidebug boot add 1 HELLO1 host 0:1 /helloworld.efi.signed ""', 'efidebug boot next 1', 'bootefi bootmgr']) assert 'Hello, world!' in ''.join(output) with u_boot_console.log.section('Test Case 1b'): # Test Case 1b, run unsigned image if no PK output = u_boot_console.run_command_list([ 'efidebug boot add 2 HELLO2 host 0:1 /helloworld.efi ""', 'efidebug boot next 2', 'bootefi bootmgr']) assert 'Hello, world!' in ''.join(output) def test_efi_signed_image_auth2(self, u_boot_console, efi_boot_env): """ Test Case 2 - Secure boot is in force, authenticated by db (TEST_db certificate in db) """ u_boot_console.restart_uboot() disk_img = efi_boot_env with u_boot_console.log.section('Test Case 2a'): # Test Case 2a, db is not yet installed output = u_boot_console.run_command_list([ 'host bind 0 %s' % disk_img, 'fatload host 0:1 4000000 KEK.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize KEK', 'fatload host 0:1 4000000 PK.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ 'efidebug boot add 1 HELLO1 host 0:1 /helloworld.efi.signed ""', 'efidebug boot next 1', 'efidebug test bootmgr']) assert('\'HELLO1\' failed' in ''.join(output)) assert('efi_start_image() returned: 26' in ''.join(output)) output = u_boot_console.run_command_list([ 'efidebug boot add 2 HELLO2 host 0:1 /helloworld.efi ""', 'efidebug boot next 2', 'efidebug test bootmgr']) assert '\'HELLO2\' failed' in ''.join(output) assert 'efi_start_image() returned: 26' in ''.join(output) with u_boot_console.log.section('Test Case 2b'): # Test Case 2b, authenticated by db output = u_boot_console.run_command_list([ 'fatload host 0:1 4000000 db.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize db']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ 'efidebug boot next 2', 'efidebug test bootmgr']) assert '\'HELLO2\' failed' in ''.join(output) assert 'efi_start_image() returned: 26' in ''.join(output) output = u_boot_console.run_command_list([ 'efidebug boot next 1', 'bootefi bootmgr']) assert 'Hello, world!' in ''.join(output) def test_efi_signed_image_auth3(self, u_boot_console, efi_boot_env): """ Test Case 3 - rejected by dbx (TEST_db certificate in dbx) """ u_boot_console.restart_uboot() disk_img = efi_boot_env with u_boot_console.log.section('Test Case 3a'): # Test Case 3a, rejected by dbx output = u_boot_console.run_command_list([ 'host bind 0 %s' % disk_img, 'fatload host 0:1 4000000 db.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize dbx', 'fatload host 0:1 4000000 KEK.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize KEK', 'fatload host 0:1 4000000 PK.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed ""', 'efidebug boot next 1', 'efidebug test bootmgr']) assert '\'HELLO\' failed' in ''.join(output) assert 'efi_start_image() returned: 26' in ''.join(output) with u_boot_console.log.section('Test Case 3b'): # Test Case 3b, rejected by dbx even if db allows output = u_boot_console.run_command_list([ 'fatload host 0:1 4000000 db.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize db']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ 'efidebug boot next 1', 'efidebug test bootmgr']) assert '\'HELLO\' failed' in ''.join(output) assert 'efi_start_image() returned: 26' in ''.join(output) def test_efi_signed_image_auth4(self, u_boot_console, efi_boot_env): """ Test Case 4 - revoked by dbx (digest of TEST_db certificate in dbx) """ u_boot_console.restart_uboot() disk_img = efi_boot_env with u_boot_console.log.section('Test Case 4'): # Test Case 4, rejected by dbx output = u_boot_console.run_command_list([ 'host bind 0 %s' % disk_img, 'fatload host 0:1 4000000 dbx_hash.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize dbx', 'fatload host 0:1 4000000 db.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize db', 'fatload host 0:1 4000000 KEK.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize KEK', 'fatload host 0:1 4000000 PK.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed ""', 'efidebug boot next 1', 'efidebug test bootmgr']) assert '\'HELLO\' failed' in ''.join(output) assert 'efi_start_image() returned: 26' in ''.join(output) def test_efi_signed_image_auth5(self, u_boot_console, efi_boot_env): """ Test Case 5 - multiple signatures one signed with TEST_db, and one signed with TEST_db1 """ u_boot_console.restart_uboot() disk_img = efi_boot_env with u_boot_console.log.section('Test Case 5a'): # Test Case 5a, authenticated even if only one of signatures # is verified output = u_boot_console.run_command_list([ 'host bind 0 %s' % disk_img, 'fatload host 0:1 4000000 db.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize db', 'fatload host 0:1 4000000 KEK.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize KEK', 'fatload host 0:1 4000000 PK.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed_2sigs ""', 'efidebug boot next 1', 'efidebug test bootmgr']) assert 'Hello, world!' in ''.join(output) with u_boot_console.log.section('Test Case 5b'): # Test Case 5b, authenticated if both signatures are verified output = u_boot_console.run_command_list([ 'fatload host 0:1 4000000 db1.auth', 'setenv -e -nv -bs -rt -at -a -i 4000000:$filesize db']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ 'efidebug boot next 1', 'efidebug test bootmgr']) assert 'Hello, world!' in ''.join(output) with u_boot_console.log.section('Test Case 5c'): # Test Case 5c, not rejected if one of signatures (digest of # certificate) is revoked output = u_boot_console.run_command_list([ 'fatload host 0:1 4000000 dbx_hash.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize dbx']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ 'efidebug boot next 1', 'efidebug test bootmgr']) assert 'Hello, world!' in ''.join(output) with u_boot_console.log.section('Test Case 5d'): # Test Case 5d, rejected if both of signatures are revoked output = u_boot_console.run_command_list([ 'fatload host 0:1 4000000 dbx_hash1.auth', 'setenv -e -nv -bs -rt -at -a -i 4000000:$filesize dbx']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ 'efidebug boot next 1', 'efidebug test bootmgr']) assert '\'HELLO\' failed' in ''.join(output) assert 'efi_start_image() returned: 26' in ''.join(output) def test_efi_signed_image_auth6(self, u_boot_console, efi_boot_env): """ Test Case 6 - using digest of signed image in database """ u_boot_console.restart_uboot() disk_img = efi_boot_env with u_boot_console.log.section('Test Case 6a'): # Test Case 6a, verified by image's digest in db output = u_boot_console.run_command_list([ 'host bind 0 %s' % disk_img, 'fatload host 0:1 4000000 db_hello_signed.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize db', 'fatload host 0:1 4000000 KEK.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize KEK', 'fatload host 0:1 4000000 PK.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed ""', 'efidebug boot next 1', 'bootefi bootmgr']) assert 'Hello, world!' in ''.join(output) with u_boot_console.log.section('Test Case 6b'): # Test Case 6b, rejected by TEST_db certificate in dbx output = u_boot_console.run_command_list([ 'fatload host 0:1 4000000 dbx_db.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize dbx']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ 'efidebug boot next 1', 'efidebug test bootmgr']) assert '\'HELLO\' failed' in ''.join(output) assert 'efi_start_image() returned: 26' in ''.join(output) with u_boot_console.log.section('Test Case 6c'): # Test Case 6c, rejected by image's digest in dbx output = u_boot_console.run_command_list([ 'fatload host 0:1 4000000 db.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize db', 'fatload host 0:1 4000000 dbx_hello_signed.auth', 'setenv -e -nv -bs -rt -at -i 4000000:$filesize dbx']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ 'efidebug boot next 1', 'efidebug test bootmgr']) assert '\'HELLO\' failed' in ''.join(output) assert 'efi_start_image() returned: 26' in ''.join(output) |