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apparmor: add AppArmor KUnit tests for policy unpack
Add KUnit tests to test AppArmor unpacking of userspace policies. AppArmor uses a serialized binary format for loading policies. To find policy format documentation see Documentation/admin-guide/LSM/apparmor.rst. In order to write the tests against the policy unpacking code, some static functions needed to be exposed for testing purposes. One of the goals of this patch is to establish a pattern for which testing these kinds of functions should be done in the future. Signed-off-by: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: Mike Salvatore <mike.salvatore@canonical.com> Acked-by: John Johansen <john.johansen@canonical.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Mike Salvatore
Shuah Khan
parent
c79f46a282
commit
4d944bcd4e
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@ -68,3 +68,19 @@ config SECURITY_APPARMOR_DEBUG_MESSAGES
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Set the default value of the apparmor.debug kernel parameter.
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Set the default value of the apparmor.debug kernel parameter.
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When enabled, various debug messages will be logged to
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When enabled, various debug messages will be logged to
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the kernel message buffer.
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the kernel message buffer.
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config SECURITY_APPARMOR_KUNIT_TEST
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bool "Build KUnit tests for policy_unpack.c"
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depends on KUNIT && SECURITY_APPARMOR
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help
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This builds the AppArmor KUnit tests.
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KUnit tests run during boot and output the results to the debug log
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in TAP format (http://testanything.org/). Only useful for kernel devs
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running KUnit test harness and are not for inclusion into a
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production build.
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For more information on KUnit and unit tests in general please refer
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to the KUnit documentation in Documentation/dev-tools/kunit/.
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If unsure, say N.
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@ -1228,3 +1228,7 @@ fail:
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return error;
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return error;
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}
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}
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#ifdef CONFIG_SECURITY_APPARMOR_KUNIT_TEST
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#include "policy_unpack_test.c"
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#endif /* CONFIG_SECURITY_APPARMOR_KUNIT_TEST */
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607
security/apparmor/policy_unpack_test.c
Normal file
607
security/apparmor/policy_unpack_test.c
Normal file
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@ -0,0 +1,607 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* KUnit tests for AppArmor's policy unpack.
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*/
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#include <kunit/test.h>
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#include "include/policy.h"
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#include "include/policy_unpack.h"
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#define TEST_STRING_NAME "TEST_STRING"
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#define TEST_STRING_DATA "testing"
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#define TEST_STRING_BUF_OFFSET \
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(3 + strlen(TEST_STRING_NAME) + 1)
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#define TEST_U32_NAME "U32_TEST"
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#define TEST_U32_DATA ((u32)0x01020304)
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#define TEST_NAMED_U32_BUF_OFFSET \
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(TEST_STRING_BUF_OFFSET + 3 + strlen(TEST_STRING_DATA) + 1)
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#define TEST_U32_BUF_OFFSET \
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(TEST_NAMED_U32_BUF_OFFSET + 3 + strlen(TEST_U32_NAME) + 1)
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#define TEST_U16_OFFSET (TEST_U32_BUF_OFFSET + 3)
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#define TEST_U16_DATA ((u16)(TEST_U32_DATA >> 16))
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#define TEST_U64_NAME "U64_TEST"
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#define TEST_U64_DATA ((u64)0x0102030405060708)
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#define TEST_NAMED_U64_BUF_OFFSET (TEST_U32_BUF_OFFSET + sizeof(u32) + 1)
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#define TEST_U64_BUF_OFFSET \
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(TEST_NAMED_U64_BUF_OFFSET + 3 + strlen(TEST_U64_NAME) + 1)
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#define TEST_BLOB_NAME "BLOB_TEST"
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#define TEST_BLOB_DATA "\xde\xad\x00\xbe\xef"
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#define TEST_BLOB_DATA_SIZE (ARRAY_SIZE(TEST_BLOB_DATA))
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#define TEST_NAMED_BLOB_BUF_OFFSET (TEST_U64_BUF_OFFSET + sizeof(u64) + 1)
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#define TEST_BLOB_BUF_OFFSET \
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(TEST_NAMED_BLOB_BUF_OFFSET + 3 + strlen(TEST_BLOB_NAME) + 1)
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#define TEST_ARRAY_NAME "ARRAY_TEST"
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#define TEST_ARRAY_SIZE 16
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#define TEST_NAMED_ARRAY_BUF_OFFSET \
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(TEST_BLOB_BUF_OFFSET + 5 + TEST_BLOB_DATA_SIZE)
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#define TEST_ARRAY_BUF_OFFSET \
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(TEST_NAMED_ARRAY_BUF_OFFSET + 3 + strlen(TEST_ARRAY_NAME) + 1)
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struct policy_unpack_fixture {
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struct aa_ext *e;
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size_t e_size;
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};
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struct aa_ext *build_aa_ext_struct(struct policy_unpack_fixture *puf,
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struct kunit *test, size_t buf_size)
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{
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char *buf;
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struct aa_ext *e;
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buf = kunit_kzalloc(test, buf_size, GFP_USER);
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KUNIT_EXPECT_NOT_ERR_OR_NULL(test, buf);
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e = kunit_kmalloc(test, sizeof(*e), GFP_USER);
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KUNIT_EXPECT_NOT_ERR_OR_NULL(test, e);
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e->start = buf;
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e->end = e->start + buf_size;
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e->pos = e->start;
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*buf = AA_NAME;
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*(buf + 1) = strlen(TEST_STRING_NAME) + 1;
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strcpy(buf + 3, TEST_STRING_NAME);
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buf = e->start + TEST_STRING_BUF_OFFSET;
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*buf = AA_STRING;
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*(buf + 1) = strlen(TEST_STRING_DATA) + 1;
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strcpy(buf + 3, TEST_STRING_DATA);
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buf = e->start + TEST_NAMED_U32_BUF_OFFSET;
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*buf = AA_NAME;
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*(buf + 1) = strlen(TEST_U32_NAME) + 1;
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strcpy(buf + 3, TEST_U32_NAME);
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*(buf + 3 + strlen(TEST_U32_NAME) + 1) = AA_U32;
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*((u32 *)(buf + 3 + strlen(TEST_U32_NAME) + 2)) = TEST_U32_DATA;
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buf = e->start + TEST_NAMED_U64_BUF_OFFSET;
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*buf = AA_NAME;
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*(buf + 1) = strlen(TEST_U64_NAME) + 1;
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strcpy(buf + 3, TEST_U64_NAME);
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*(buf + 3 + strlen(TEST_U64_NAME) + 1) = AA_U64;
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*((u64 *)(buf + 3 + strlen(TEST_U64_NAME) + 2)) = TEST_U64_DATA;
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buf = e->start + TEST_NAMED_BLOB_BUF_OFFSET;
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*buf = AA_NAME;
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*(buf + 1) = strlen(TEST_BLOB_NAME) + 1;
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strcpy(buf + 3, TEST_BLOB_NAME);
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*(buf + 3 + strlen(TEST_BLOB_NAME) + 1) = AA_BLOB;
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*(buf + 3 + strlen(TEST_BLOB_NAME) + 2) = TEST_BLOB_DATA_SIZE;
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memcpy(buf + 3 + strlen(TEST_BLOB_NAME) + 6,
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TEST_BLOB_DATA, TEST_BLOB_DATA_SIZE);
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buf = e->start + TEST_NAMED_ARRAY_BUF_OFFSET;
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*buf = AA_NAME;
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*(buf + 1) = strlen(TEST_ARRAY_NAME) + 1;
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strcpy(buf + 3, TEST_ARRAY_NAME);
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*(buf + 3 + strlen(TEST_ARRAY_NAME) + 1) = AA_ARRAY;
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*((u16 *)(buf + 3 + strlen(TEST_ARRAY_NAME) + 2)) = TEST_ARRAY_SIZE;
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return e;
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}
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static int policy_unpack_test_init(struct kunit *test)
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{
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size_t e_size = TEST_ARRAY_BUF_OFFSET + sizeof(u16) + 1;
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struct policy_unpack_fixture *puf;
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puf = kunit_kmalloc(test, sizeof(*puf), GFP_USER);
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KUNIT_EXPECT_NOT_ERR_OR_NULL(test, puf);
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puf->e_size = e_size;
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puf->e = build_aa_ext_struct(puf, test, e_size);
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test->priv = puf;
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return 0;
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}
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static void policy_unpack_test_inbounds_when_inbounds(struct kunit *test)
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{
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struct policy_unpack_fixture *puf = test->priv;
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KUNIT_EXPECT_TRUE(test, inbounds(puf->e, 0));
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KUNIT_EXPECT_TRUE(test, inbounds(puf->e, puf->e_size / 2));
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KUNIT_EXPECT_TRUE(test, inbounds(puf->e, puf->e_size));
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}
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static void policy_unpack_test_inbounds_when_out_of_bounds(struct kunit *test)
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{
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struct policy_unpack_fixture *puf = test->priv;
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KUNIT_EXPECT_FALSE(test, inbounds(puf->e, puf->e_size + 1));
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}
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static void policy_unpack_test_unpack_array_with_null_name(struct kunit *test)
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{
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struct policy_unpack_fixture *puf = test->priv;
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u16 array_size;
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puf->e->pos += TEST_ARRAY_BUF_OFFSET;
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array_size = unpack_array(puf->e, NULL);
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KUNIT_EXPECT_EQ(test, array_size, (u16)TEST_ARRAY_SIZE);
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KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
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puf->e->start + TEST_ARRAY_BUF_OFFSET + sizeof(u16) + 1);
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}
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static void policy_unpack_test_unpack_array_with_name(struct kunit *test)
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{
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struct policy_unpack_fixture *puf = test->priv;
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const char name[] = TEST_ARRAY_NAME;
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u16 array_size;
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puf->e->pos += TEST_NAMED_ARRAY_BUF_OFFSET;
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array_size = unpack_array(puf->e, name);
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KUNIT_EXPECT_EQ(test, array_size, (u16)TEST_ARRAY_SIZE);
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KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
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puf->e->start + TEST_ARRAY_BUF_OFFSET + sizeof(u16) + 1);
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}
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static void policy_unpack_test_unpack_array_out_of_bounds(struct kunit *test)
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{
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struct policy_unpack_fixture *puf = test->priv;
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const char name[] = TEST_ARRAY_NAME;
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u16 array_size;
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puf->e->pos += TEST_NAMED_ARRAY_BUF_OFFSET;
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puf->e->end = puf->e->start + TEST_ARRAY_BUF_OFFSET + sizeof(u16);
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array_size = unpack_array(puf->e, name);
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KUNIT_EXPECT_EQ(test, array_size, (u16)0);
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KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
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puf->e->start + TEST_NAMED_ARRAY_BUF_OFFSET);
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}
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static void policy_unpack_test_unpack_blob_with_null_name(struct kunit *test)
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{
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struct policy_unpack_fixture *puf = test->priv;
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char *blob = NULL;
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size_t size;
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puf->e->pos += TEST_BLOB_BUF_OFFSET;
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size = unpack_blob(puf->e, &blob, NULL);
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KUNIT_ASSERT_EQ(test, size, TEST_BLOB_DATA_SIZE);
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KUNIT_EXPECT_TRUE(test,
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memcmp(blob, TEST_BLOB_DATA, TEST_BLOB_DATA_SIZE) == 0);
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}
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static void policy_unpack_test_unpack_blob_with_name(struct kunit *test)
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{
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struct policy_unpack_fixture *puf = test->priv;
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char *blob = NULL;
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size_t size;
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puf->e->pos += TEST_NAMED_BLOB_BUF_OFFSET;
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size = unpack_blob(puf->e, &blob, TEST_BLOB_NAME);
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KUNIT_ASSERT_EQ(test, size, TEST_BLOB_DATA_SIZE);
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KUNIT_EXPECT_TRUE(test,
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memcmp(blob, TEST_BLOB_DATA, TEST_BLOB_DATA_SIZE) == 0);
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}
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static void policy_unpack_test_unpack_blob_out_of_bounds(struct kunit *test)
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{
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struct policy_unpack_fixture *puf = test->priv;
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char *blob = NULL;
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void *start;
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int size;
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puf->e->pos += TEST_NAMED_BLOB_BUF_OFFSET;
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start = puf->e->pos;
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puf->e->end = puf->e->start + TEST_BLOB_BUF_OFFSET
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+ TEST_BLOB_DATA_SIZE - 1;
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size = unpack_blob(puf->e, &blob, TEST_BLOB_NAME);
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KUNIT_EXPECT_EQ(test, size, 0);
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KUNIT_EXPECT_PTR_EQ(test, puf->e->pos, start);
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}
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static void policy_unpack_test_unpack_str_with_null_name(struct kunit *test)
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{
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struct policy_unpack_fixture *puf = test->priv;
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const char *string = NULL;
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size_t size;
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puf->e->pos += TEST_STRING_BUF_OFFSET;
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size = unpack_str(puf->e, &string, NULL);
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KUNIT_EXPECT_EQ(test, size, strlen(TEST_STRING_DATA) + 1);
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KUNIT_EXPECT_STREQ(test, string, TEST_STRING_DATA);
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}
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static void policy_unpack_test_unpack_str_with_name(struct kunit *test)
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{
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struct policy_unpack_fixture *puf = test->priv;
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const char *string = NULL;
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size_t size;
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size = unpack_str(puf->e, &string, TEST_STRING_NAME);
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KUNIT_EXPECT_EQ(test, size, strlen(TEST_STRING_DATA) + 1);
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KUNIT_EXPECT_STREQ(test, string, TEST_STRING_DATA);
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}
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static void policy_unpack_test_unpack_str_out_of_bounds(struct kunit *test)
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{
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struct policy_unpack_fixture *puf = test->priv;
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const char *string = NULL;
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void *start = puf->e->pos;
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int size;
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puf->e->end = puf->e->pos + TEST_STRING_BUF_OFFSET
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+ strlen(TEST_STRING_DATA) - 1;
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size = unpack_str(puf->e, &string, TEST_STRING_NAME);
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KUNIT_EXPECT_EQ(test, size, 0);
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KUNIT_EXPECT_PTR_EQ(test, puf->e->pos, start);
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}
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static void policy_unpack_test_unpack_strdup_with_null_name(struct kunit *test)
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{
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struct policy_unpack_fixture *puf = test->priv;
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char *string = NULL;
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size_t size;
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puf->e->pos += TEST_STRING_BUF_OFFSET;
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size = unpack_strdup(puf->e, &string, NULL);
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KUNIT_EXPECT_EQ(test, size, strlen(TEST_STRING_DATA) + 1);
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KUNIT_EXPECT_FALSE(test,
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((uintptr_t)puf->e->start <= (uintptr_t)string)
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&& ((uintptr_t)string <= (uintptr_t)puf->e->end));
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KUNIT_EXPECT_STREQ(test, string, TEST_STRING_DATA);
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}
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static void policy_unpack_test_unpack_strdup_with_name(struct kunit *test)
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{
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struct policy_unpack_fixture *puf = test->priv;
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char *string = NULL;
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size_t size;
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size = unpack_strdup(puf->e, &string, TEST_STRING_NAME);
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KUNIT_EXPECT_EQ(test, size, strlen(TEST_STRING_DATA) + 1);
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KUNIT_EXPECT_FALSE(test,
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((uintptr_t)puf->e->start <= (uintptr_t)string)
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&& ((uintptr_t)string <= (uintptr_t)puf->e->end));
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KUNIT_EXPECT_STREQ(test, string, TEST_STRING_DATA);
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}
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||||||
|
static void policy_unpack_test_unpack_strdup_out_of_bounds(struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
void *start = puf->e->pos;
|
||||||
|
char *string = NULL;
|
||||||
|
int size;
|
||||||
|
|
||||||
|
puf->e->end = puf->e->pos + TEST_STRING_BUF_OFFSET
|
||||||
|
+ strlen(TEST_STRING_DATA) - 1;
|
||||||
|
|
||||||
|
size = unpack_strdup(puf->e, &string, TEST_STRING_NAME);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_EQ(test, size, 0);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, string, (char *)NULL);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos, start);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void policy_unpack_test_unpack_nameX_with_null_name(struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
bool success;
|
||||||
|
|
||||||
|
puf->e->pos += TEST_U32_BUF_OFFSET;
|
||||||
|
|
||||||
|
success = unpack_nameX(puf->e, AA_U32, NULL);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_TRUE(test, success);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
|
||||||
|
puf->e->start + TEST_U32_BUF_OFFSET + 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void policy_unpack_test_unpack_nameX_with_wrong_code(struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
bool success;
|
||||||
|
|
||||||
|
puf->e->pos += TEST_U32_BUF_OFFSET;
|
||||||
|
|
||||||
|
success = unpack_nameX(puf->e, AA_BLOB, NULL);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_FALSE(test, success);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
|
||||||
|
puf->e->start + TEST_U32_BUF_OFFSET);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void policy_unpack_test_unpack_nameX_with_name(struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
const char name[] = TEST_U32_NAME;
|
||||||
|
bool success;
|
||||||
|
|
||||||
|
puf->e->pos += TEST_NAMED_U32_BUF_OFFSET;
|
||||||
|
|
||||||
|
success = unpack_nameX(puf->e, AA_U32, name);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_TRUE(test, success);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
|
||||||
|
puf->e->start + TEST_U32_BUF_OFFSET + 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void policy_unpack_test_unpack_nameX_with_wrong_name(struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
static const char name[] = "12345678";
|
||||||
|
bool success;
|
||||||
|
|
||||||
|
puf->e->pos += TEST_NAMED_U32_BUF_OFFSET;
|
||||||
|
|
||||||
|
success = unpack_nameX(puf->e, AA_U32, name);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_FALSE(test, success);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
|
||||||
|
puf->e->start + TEST_NAMED_U32_BUF_OFFSET);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void policy_unpack_test_unpack_u16_chunk_basic(struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
char *chunk = NULL;
|
||||||
|
size_t size;
|
||||||
|
|
||||||
|
puf->e->pos += TEST_U16_OFFSET;
|
||||||
|
/*
|
||||||
|
* WARNING: For unit testing purposes, we're pushing puf->e->end past
|
||||||
|
* the end of the allocated memory. Doing anything other than comparing
|
||||||
|
* memory addresses is dangerous.
|
||||||
|
*/
|
||||||
|
puf->e->end += TEST_U16_DATA;
|
||||||
|
|
||||||
|
size = unpack_u16_chunk(puf->e, &chunk);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, (void *)chunk,
|
||||||
|
puf->e->start + TEST_U16_OFFSET + 2);
|
||||||
|
KUNIT_EXPECT_EQ(test, size, (size_t)TEST_U16_DATA);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos, (void *)(chunk + TEST_U16_DATA));
|
||||||
|
}
|
||||||
|
|
||||||
|
static void policy_unpack_test_unpack_u16_chunk_out_of_bounds_1(
|
||||||
|
struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
char *chunk = NULL;
|
||||||
|
size_t size;
|
||||||
|
|
||||||
|
puf->e->pos = puf->e->end - 1;
|
||||||
|
|
||||||
|
size = unpack_u16_chunk(puf->e, &chunk);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_EQ(test, size, (size_t)0);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, chunk, (char *)NULL);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos, puf->e->end - 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void policy_unpack_test_unpack_u16_chunk_out_of_bounds_2(
|
||||||
|
struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
char *chunk = NULL;
|
||||||
|
size_t size;
|
||||||
|
|
||||||
|
puf->e->pos += TEST_U16_OFFSET;
|
||||||
|
/*
|
||||||
|
* WARNING: For unit testing purposes, we're pushing puf->e->end past
|
||||||
|
* the end of the allocated memory. Doing anything other than comparing
|
||||||
|
* memory addresses is dangerous.
|
||||||
|
*/
|
||||||
|
puf->e->end = puf->e->pos + TEST_U16_DATA - 1;
|
||||||
|
|
||||||
|
size = unpack_u16_chunk(puf->e, &chunk);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_EQ(test, size, (size_t)0);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, chunk, (char *)NULL);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos, puf->e->start + TEST_U16_OFFSET);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void policy_unpack_test_unpack_u32_with_null_name(struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
bool success;
|
||||||
|
u32 data;
|
||||||
|
|
||||||
|
puf->e->pos += TEST_U32_BUF_OFFSET;
|
||||||
|
|
||||||
|
success = unpack_u32(puf->e, &data, NULL);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_TRUE(test, success);
|
||||||
|
KUNIT_EXPECT_EQ(test, data, TEST_U32_DATA);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
|
||||||
|
puf->e->start + TEST_U32_BUF_OFFSET + sizeof(u32) + 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void policy_unpack_test_unpack_u32_with_name(struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
const char name[] = TEST_U32_NAME;
|
||||||
|
bool success;
|
||||||
|
u32 data;
|
||||||
|
|
||||||
|
puf->e->pos += TEST_NAMED_U32_BUF_OFFSET;
|
||||||
|
|
||||||
|
success = unpack_u32(puf->e, &data, name);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_TRUE(test, success);
|
||||||
|
KUNIT_EXPECT_EQ(test, data, TEST_U32_DATA);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
|
||||||
|
puf->e->start + TEST_U32_BUF_OFFSET + sizeof(u32) + 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void policy_unpack_test_unpack_u32_out_of_bounds(struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
const char name[] = TEST_U32_NAME;
|
||||||
|
bool success;
|
||||||
|
u32 data;
|
||||||
|
|
||||||
|
puf->e->pos += TEST_NAMED_U32_BUF_OFFSET;
|
||||||
|
puf->e->end = puf->e->start + TEST_U32_BUF_OFFSET + sizeof(u32);
|
||||||
|
|
||||||
|
success = unpack_u32(puf->e, &data, name);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_FALSE(test, success);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
|
||||||
|
puf->e->start + TEST_NAMED_U32_BUF_OFFSET);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void policy_unpack_test_unpack_u64_with_null_name(struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
bool success;
|
||||||
|
u64 data;
|
||||||
|
|
||||||
|
puf->e->pos += TEST_U64_BUF_OFFSET;
|
||||||
|
|
||||||
|
success = unpack_u64(puf->e, &data, NULL);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_TRUE(test, success);
|
||||||
|
KUNIT_EXPECT_EQ(test, data, TEST_U64_DATA);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
|
||||||
|
puf->e->start + TEST_U64_BUF_OFFSET + sizeof(u64) + 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void policy_unpack_test_unpack_u64_with_name(struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
const char name[] = TEST_U64_NAME;
|
||||||
|
bool success;
|
||||||
|
u64 data;
|
||||||
|
|
||||||
|
puf->e->pos += TEST_NAMED_U64_BUF_OFFSET;
|
||||||
|
|
||||||
|
success = unpack_u64(puf->e, &data, name);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_TRUE(test, success);
|
||||||
|
KUNIT_EXPECT_EQ(test, data, TEST_U64_DATA);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
|
||||||
|
puf->e->start + TEST_U64_BUF_OFFSET + sizeof(u64) + 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void policy_unpack_test_unpack_u64_out_of_bounds(struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
const char name[] = TEST_U64_NAME;
|
||||||
|
bool success;
|
||||||
|
u64 data;
|
||||||
|
|
||||||
|
puf->e->pos += TEST_NAMED_U64_BUF_OFFSET;
|
||||||
|
puf->e->end = puf->e->start + TEST_U64_BUF_OFFSET + sizeof(u64);
|
||||||
|
|
||||||
|
success = unpack_u64(puf->e, &data, name);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_FALSE(test, success);
|
||||||
|
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
|
||||||
|
puf->e->start + TEST_NAMED_U64_BUF_OFFSET);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void policy_unpack_test_unpack_X_code_match(struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
bool success = unpack_X(puf->e, AA_NAME);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_TRUE(test, success);
|
||||||
|
KUNIT_EXPECT_TRUE(test, puf->e->pos == puf->e->start + 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void policy_unpack_test_unpack_X_code_mismatch(struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
bool success = unpack_X(puf->e, AA_STRING);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_FALSE(test, success);
|
||||||
|
KUNIT_EXPECT_TRUE(test, puf->e->pos == puf->e->start);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void policy_unpack_test_unpack_X_out_of_bounds(struct kunit *test)
|
||||||
|
{
|
||||||
|
struct policy_unpack_fixture *puf = test->priv;
|
||||||
|
bool success;
|
||||||
|
|
||||||
|
puf->e->pos = puf->e->end;
|
||||||
|
success = unpack_X(puf->e, AA_NAME);
|
||||||
|
|
||||||
|
KUNIT_EXPECT_FALSE(test, success);
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct kunit_case apparmor_policy_unpack_test_cases[] = {
|
||||||
|
KUNIT_CASE(policy_unpack_test_inbounds_when_inbounds),
|
||||||
|
KUNIT_CASE(policy_unpack_test_inbounds_when_out_of_bounds),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_array_with_null_name),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_array_with_name),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_array_out_of_bounds),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_blob_with_null_name),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_blob_with_name),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_blob_out_of_bounds),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_nameX_with_null_name),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_nameX_with_wrong_code),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_nameX_with_name),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_nameX_with_wrong_name),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_str_with_null_name),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_str_with_name),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_str_out_of_bounds),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_strdup_with_null_name),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_strdup_with_name),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_strdup_out_of_bounds),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_u16_chunk_basic),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_u16_chunk_out_of_bounds_1),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_u16_chunk_out_of_bounds_2),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_u32_with_null_name),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_u32_with_name),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_u32_out_of_bounds),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_u64_with_null_name),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_u64_with_name),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_u64_out_of_bounds),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_X_code_match),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_X_code_mismatch),
|
||||||
|
KUNIT_CASE(policy_unpack_test_unpack_X_out_of_bounds),
|
||||||
|
{},
|
||||||
|
};
|
||||||
|
|
||||||
|
static struct kunit_suite apparmor_policy_unpack_test_module = {
|
||||||
|
.name = "apparmor_policy_unpack",
|
||||||
|
.init = policy_unpack_test_init,
|
||||||
|
.test_cases = apparmor_policy_unpack_test_cases,
|
||||||
|
};
|
||||||
|
|
||||||
|
kunit_test_suite(apparmor_policy_unpack_test_module);
|
||||||
Loading…
Reference in New Issue
Block a user