From 92500362210268faf4ae81644a66a7616d6bde1d Mon Sep 17 00:00:00 2001 From: Alexey Krasikov Date: Mon, 25 May 2020 14:19:13 +0300 Subject: [PATCH] test-crypto-secret: add 'secret_keyring' object tests. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add tests: test_secret_keyring_good; test_secret_keyring_revoked_key; test_secret_keyring_expired_key; test_secret_keyring_bad_serial_key; test_secret_keyring_bad_key_access_right; Added tests require libkeyutils. The absence of this library is not critical, because these tests will be skipped in this case. Signed-off-by: Alexey Krasikov Signed-off-by: Daniel P. Berrangé --- configure | 24 ++++++ tests/Makefile.include | 4 + tests/test-crypto-secret.c | 158 +++++++++++++++++++++++++++++++++++++ 3 files changed, 186 insertions(+) diff --git a/configure b/configure index 3fbb61905a..07202acb9e 100755 --- a/configure +++ b/configure @@ -6330,6 +6330,27 @@ but not implemented on your system" fi fi +########################################## +# check for usable keyutils.h + +if test "$linux" = "yes" ; then + + have_keyutils=no + cat > $TMPC << EOF +#include +#include +#include +#include +#include +int main(void) { + return request_key("user", NULL, NULL, 0); +} +EOF + if compile_prog "" "-lkeyutils"; then + have_keyutils=yes + fi +fi + ########################################## # End of CC checks @@ -7702,6 +7723,9 @@ fi if test "$secret_keyring" = "yes" ; then echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak + if test "$have_keyutils" = "yes" ; then + echo "CONFIG_TEST_SECRET_KEYRING=y" >> $config_host_mak + fi fi if test "$tcg_interpreter" = "yes"; then diff --git a/tests/Makefile.include b/tests/Makefile.include index c2397de8ed..5607c7290d 100644 --- a/tests/Makefile.include +++ b/tests/Makefile.include @@ -540,6 +540,10 @@ tests/benchmark-crypto-cipher$(EXESUF): tests/benchmark-crypto-cipher.o $(test-c tests/test-crypto-secret$(EXESUF): tests/test-crypto-secret.o $(test-crypto-obj-y) tests/test-crypto-xts$(EXESUF): tests/test-crypto-xts.o $(test-crypto-obj-y) +ifeq ($(CONFIG_TEST_SECRET_KEYRING),y) +tests/test-crypto-secret.o-libs := -lkeyutils +endif + tests/crypto-tls-x509-helpers.o-cflags := $(TASN1_CFLAGS) tests/crypto-tls-x509-helpers.o-libs := $(TASN1_LIBS) tests/pkix_asn1_tab.o-cflags := $(TASN1_CFLAGS) diff --git a/tests/test-crypto-secret.c b/tests/test-crypto-secret.c index 13fc6c4c75..603a093f10 100644 --- a/tests/test-crypto-secret.c +++ b/tests/test-crypto-secret.c @@ -24,6 +24,10 @@ #include "crypto/secret.h" #include "qapi/error.h" #include "qemu/module.h" +#ifdef CONFIG_TEST_SECRET_KEYRING +#include "crypto/secret_keyring.h" +#include +#endif static void test_secret_direct(void) { @@ -124,6 +128,147 @@ static void test_secret_indirect_emptyfile(void) g_free(fname); } +#ifdef CONFIG_TEST_SECRET_KEYRING + +#define DESCRIPTION "qemu_test_secret" +#define PAYLOAD "Test Payload" + + +static void test_secret_keyring_good(void) +{ + char key_str[16]; + Object *sec; + int32_t key = add_key("user", DESCRIPTION, PAYLOAD, + strlen(PAYLOAD), KEY_SPEC_PROCESS_KEYRING); + + g_assert(key >= 0); + + snprintf(key_str, sizeof(key_str), "0x%08x", key); + sec = object_new_with_props( + TYPE_QCRYPTO_SECRET_KEYRING, + object_get_objects_root(), + "sec0", + &error_abort, + "serial", key_str, + NULL); + + assert(0 <= keyctl_unlink(key, KEY_SPEC_PROCESS_KEYRING)); + char *pw = qcrypto_secret_lookup_as_utf8("sec0", + &error_abort); + g_assert_cmpstr(pw, ==, PAYLOAD); + + object_unparent(sec); + g_free(pw); +} + + +static void test_secret_keyring_revoked_key(void) +{ + char key_str[16]; + Object *sec; + int32_t key = add_key("user", DESCRIPTION, PAYLOAD, + strlen(PAYLOAD), KEY_SPEC_PROCESS_KEYRING); + g_assert(key >= 0); + g_assert_false(keyctl_revoke(key)); + + snprintf(key_str, sizeof(key_str), "0x%08x", key); + sec = object_new_with_props( + TYPE_QCRYPTO_SECRET_KEYRING, + object_get_objects_root(), + "sec0", + NULL, + "serial", key_str, + NULL); + + g_assert(errno == EKEYREVOKED); + g_assert(sec == NULL); + + keyctl_unlink(key, KEY_SPEC_PROCESS_KEYRING); +} + + +static void test_secret_keyring_expired_key(void) +{ + char key_str[16]; + Object *sec; + int32_t key = add_key("user", DESCRIPTION, PAYLOAD, + strlen(PAYLOAD), KEY_SPEC_PROCESS_KEYRING); + g_assert(key >= 0); + g_assert_false(keyctl_set_timeout(key, 1)); + sleep(1); + + snprintf(key_str, sizeof(key_str), "0x%08x", key); + sec = object_new_with_props( + TYPE_QCRYPTO_SECRET_KEYRING, + object_get_objects_root(), + "sec0", + NULL, + "serial", key_str, + NULL); + + g_assert(errno == EKEYEXPIRED); + g_assert(sec == NULL); + + keyctl_unlink(key, KEY_SPEC_PROCESS_KEYRING); +} + + +static void test_secret_keyring_bad_serial_key(void) +{ + Object *sec; + + sec = object_new_with_props( + TYPE_QCRYPTO_SECRET_KEYRING, + object_get_objects_root(), + "sec0", + NULL, + "serial", "1", + NULL); + + g_assert(errno == ENOKEY); + g_assert(sec == NULL); +} + +/* + * TODO + * test_secret_keyring_bad_key_access_right() is not working yet. + * We don't know yet if this due a bug in the Linux kernel or + * whether it's normal syscall behavior. + * We've requested information from kernel maintainers. + * See: + * Thread: 'security/keys: remove possessor verify after key permission check' + */ + +static void test_secret_keyring_bad_key_access_right(void) +{ + char key_str[16]; + Object *sec; + + g_test_skip("TODO: Need responce from Linux kernel maintainers"); + return; + + int32_t key = add_key("user", DESCRIPTION, PAYLOAD, + strlen(PAYLOAD), KEY_SPEC_PROCESS_KEYRING); + g_assert(key >= 0); + g_assert_false(keyctl_setperm(key, KEY_POS_ALL & (~KEY_POS_READ))); + + snprintf(key_str, sizeof(key_str), "0x%08x", key); + + sec = object_new_with_props( + TYPE_QCRYPTO_SECRET_KEYRING, + object_get_objects_root(), + "sec0", + NULL, + "serial", key_str, + NULL); + + g_assert(errno == EACCES); + g_assert(sec == NULL); + + keyctl_unlink(key, KEY_SPEC_PROCESS_KEYRING); +} + +#endif /* CONFIG_TEST_SECRET_KEYRING */ static void test_secret_noconv_base64_good(void) { @@ -426,6 +571,19 @@ int main(int argc, char **argv) g_test_add_func("/crypto/secret/indirect/emptyfile", test_secret_indirect_emptyfile); +#ifdef CONFIG_TEST_SECRET_KEYRING + g_test_add_func("/crypto/secret/keyring/good", + test_secret_keyring_good); + g_test_add_func("/crypto/secret/keyring/revoked_key", + test_secret_keyring_revoked_key); + g_test_add_func("/crypto/secret/keyring/expired_key", + test_secret_keyring_expired_key); + g_test_add_func("/crypto/secret/keyring/bad_serial_key", + test_secret_keyring_bad_serial_key); + g_test_add_func("/crypto/secret/keyring/bad_key_access_right", + test_secret_keyring_bad_key_access_right); +#endif /* CONFIG_TEST_SECRET_KEYRING */ + g_test_add_func("/crypto/secret/noconv/base64/good", test_secret_noconv_base64_good); g_test_add_func("/crypto/secret/noconv/base64/bad",