diff options
Diffstat (limited to 'tests/vb20_common_tests.c')
| -rw-r--r-- | tests/vb20_common_tests.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/tests/vb20_common_tests.c b/tests/vb20_common_tests.c new file mode 100644 index 00000000..4f4d6813 --- /dev/null +++ b/tests/vb20_common_tests.c @@ -0,0 +1,174 @@ +/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + * + * Tests for firmware 2common.c + */ + +#include "2sysincludes.h" +#include "vb2_common.h" +#include "vboot_struct.h" /* For old struct sizes */ +#include "test_common.h" + +/* + * Test struct packing for vboot_struct.h structs which are passed between + * firmware and OS, or passed between different phases of firmware. + */ +static void test_struct_packing(void) +{ + /* Test vboot2 versions of vboot1 structs */ + TEST_EQ(EXPECTED_VB2_PACKED_KEY_SIZE, + sizeof(struct vb2_packed_key), + "sizeof(vb2_packed_key)"); + TEST_EQ(EXPECTED_VB2_SIGNATURE_SIZE, + sizeof(struct vb2_signature), + "sizeof(vb2_signature)"); + TEST_EQ(EXPECTED_VB2_KEYBLOCK_SIZE, + sizeof(struct vb2_keyblock), + "sizeof(vb2_keyblock)"); + TEST_EQ(EXPECTED_VB2_FW_PREAMBLE_SIZE, + sizeof(struct vb2_fw_preamble), + "sizeof(vb2_fw_preamble)"); + TEST_EQ(EXPECTED_VB2_GBB_HEADER_SIZE, + sizeof(struct vb2_gbb_header), + "sizeof(vb2_gbb_header)"); + + /* And make sure they're the same as their vboot1 equivalents */ + TEST_EQ(EXPECTED_VB2_PACKED_KEY_SIZE, + EXPECTED_VBPUBLICKEY_SIZE, + "vboot1->2 packed key sizes same"); + TEST_EQ(EXPECTED_VB2_SIGNATURE_SIZE, + EXPECTED_VBSIGNATURE_SIZE, + "vboot1->2 signature sizes same"); + TEST_EQ(EXPECTED_VB2_KEYBLOCK_SIZE, + EXPECTED_VBKEYBLOCKHEADER_SIZE, + "vboot1->2 keyblock sizes same"); + TEST_EQ(EXPECTED_VB2_FW_PREAMBLE_SIZE, + EXPECTED_VBFIRMWAREPREAMBLEHEADER2_1_SIZE, + "vboot1->2 firmware preamble sizes same"); +} + +/** + * Helper functions not dependent on specific key sizes + */ +static void test_helper_functions(void) +{ + { + uint8_t *p = (uint8_t *)test_helper_functions; + TEST_EQ((int)vb2_offset_of(p, p), 0, "vb2_offset_of() equal"); + TEST_EQ((int)vb2_offset_of(p, p+10), 10, + "vb2_offset_of() positive"); + } + + { + struct vb2_packed_key k = {.key_offset = sizeof(k)}; + TEST_EQ((int)vb2_offset_of(&k, vb2_packed_key_data(&k)), + sizeof(k), "vb2_packed_key_data() adjacent"); + } + + { + struct vb2_packed_key k = {.key_offset = 123}; + TEST_EQ((int)vb2_offset_of(&k, vb2_packed_key_data(&k)), 123, + "vb2_packed_key_data() spaced"); + } + + { + struct vb2_signature s = {.sig_offset = sizeof(s)}; + TEST_EQ((int)vb2_offset_of(&s, vb2_signature_data(&s)), + sizeof(s), "vb2_signature_data() adjacent"); + } + + { + struct vb2_signature s = {.sig_offset = 123}; + TEST_EQ((int)vb2_offset_of(&s, vb2_signature_data(&s)), 123, + "vb2_signature_data() spaced"); + } + + { + uint8_t *p = (uint8_t *)test_helper_functions; + TEST_SUCC(vb2_verify_member_inside(p, 20, p, 6, 11, 3), + "MemberInside ok 1"); + TEST_SUCC(vb2_verify_member_inside(p, 20, p+4, 4, 8, 4), + "MemberInside ok 2"); + TEST_EQ(vb2_verify_member_inside(p, 20, p-4, 4, 8, 4), + VB2_ERROR_INSIDE_MEMBER_OUTSIDE, + "MemberInside member before parent"); + TEST_EQ(vb2_verify_member_inside(p, 20, p+20, 4, 8, 4), + VB2_ERROR_INSIDE_MEMBER_OUTSIDE, + "MemberInside member after parent"); + TEST_EQ(vb2_verify_member_inside(p, 20, p, 21, 0, 0), + VB2_ERROR_INSIDE_MEMBER_OUTSIDE, + "MemberInside member too big"); + TEST_EQ(vb2_verify_member_inside(p, 20, p, 4, 21, 0), + VB2_ERROR_INSIDE_DATA_OUTSIDE, + "MemberInside data after parent"); + TEST_EQ(vb2_verify_member_inside(p, 20, p, 4, SIZE_MAX, 0), + VB2_ERROR_INSIDE_DATA_OUTSIDE, + "MemberInside data before parent"); + TEST_EQ(vb2_verify_member_inside(p, 20, p, 4, 4, 17), + VB2_ERROR_INSIDE_DATA_OUTSIDE, + "MemberInside data too big"); + TEST_EQ(vb2_verify_member_inside(p, 20, p, 8, 4, 8), + VB2_ERROR_INSIDE_DATA_OVERLAP, + "MemberInside data overlaps member"); + TEST_EQ(vb2_verify_member_inside(p, -8, p, 12, 0, 0), + VB2_ERROR_INSIDE_PARENT_WRAPS, + "MemberInside wraparound 1"); + TEST_EQ(vb2_verify_member_inside(p, 20, p, -8, 0, 0), + VB2_ERROR_INSIDE_MEMBER_WRAPS, + "MemberInside wraparound 2"); + TEST_EQ(vb2_verify_member_inside(p, 20, p, 4, 4, -12), + VB2_ERROR_INSIDE_DATA_WRAPS, + "MemberInside wraparound 3"); + } + + { + struct vb2_packed_key k = {.key_offset = sizeof(k), + .key_size = 128}; + TEST_SUCC(vb2_verify_packed_key_inside(&k, sizeof(k)+128, &k), + "PublicKeyInside ok 1"); + TEST_SUCC(vb2_verify_packed_key_inside(&k - 1, + 2*sizeof(k)+128, &k), + "PublicKeyInside ok 2"); + TEST_EQ(vb2_verify_packed_key_inside(&k, 128, &k), + VB2_ERROR_INSIDE_DATA_OUTSIDE, + "PublicKeyInside key too big"); + } + + { + struct vb2_packed_key k = {.key_offset = 100, + .key_size = 4}; + TEST_EQ(vb2_verify_packed_key_inside(&k, 99, &k), + VB2_ERROR_INSIDE_DATA_OUTSIDE, + "PublicKeyInside offset too big"); + } + + { + struct vb2_signature s = {.sig_offset = sizeof(s), + .sig_size = 128}; + TEST_SUCC(vb2_verify_signature_inside(&s, sizeof(s)+128, &s), + "SignatureInside ok 1"); + TEST_SUCC(vb2_verify_signature_inside(&s - 1, + 2*sizeof(s)+128, &s), + "SignatureInside ok 2"); + TEST_EQ(vb2_verify_signature_inside(&s, 128, &s), + VB2_ERROR_INSIDE_DATA_OUTSIDE, + "SignatureInside sig too big"); + } + + { + struct vb2_signature s = {.sig_offset = 100, + .sig_size = 4}; + TEST_EQ(vb2_verify_signature_inside(&s, 99, &s), + VB2_ERROR_INSIDE_DATA_OUTSIDE, + "SignatureInside offset too big"); + } +} + +int main(int argc, char* argv[]) +{ + test_struct_packing(); + test_helper_functions(); + + return gTestSuccess ? 0 : 255; +} |