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-rw-r--r--regress/unittests/authopt/tests.c573
1 files changed, 573 insertions, 0 deletions
diff --git a/regress/unittests/authopt/tests.c b/regress/unittests/authopt/tests.c
new file mode 100644
index 0000000..0e8aacb
--- /dev/null
+++ b/regress/unittests/authopt/tests.c
@@ -0,0 +1,573 @@
+/* $OpenBSD: tests.c,v 1.1 2018/03/03 03:16:17 djm Exp $ */
+
+/*
+ * Regress test for keys options functions.
+ *
+ * Placed in the public domain
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "test_helper.h"
+
+#include "sshkey.h"
+#include "authfile.h"
+#include "auth-options.h"
+#include "misc.h"
+#include "log.h"
+
+static struct sshkey *
+load_key(const char *name)
+{
+ struct sshkey *ret;
+ int r;
+
+ r = sshkey_load_public(test_data_file(name), &ret, NULL);
+ ASSERT_INT_EQ(r, 0);
+ ASSERT_PTR_NE(ret, NULL);
+ return ret;
+}
+
+static struct sshauthopt *
+default_authkey_opts(void)
+{
+ struct sshauthopt *ret = sshauthopt_new();
+
+ ASSERT_PTR_NE(ret, NULL);
+ ret->permit_port_forwarding_flag = 1;
+ ret->permit_agent_forwarding_flag = 1;
+ ret->permit_x11_forwarding_flag = 1;
+ ret->permit_pty_flag = 1;
+ ret->permit_user_rc = 1;
+ return ret;
+}
+
+static struct sshauthopt *
+default_authkey_restrict_opts(void)
+{
+ struct sshauthopt *ret = sshauthopt_new();
+
+ ASSERT_PTR_NE(ret, NULL);
+ ret->permit_port_forwarding_flag = 0;
+ ret->permit_agent_forwarding_flag = 0;
+ ret->permit_x11_forwarding_flag = 0;
+ ret->permit_pty_flag = 0;
+ ret->permit_user_rc = 0;
+ ret->restricted = 1;
+ return ret;
+}
+
+static char **
+commasplit(const char *s, size_t *np)
+{
+ char *ocp, *cp, *cp2, **ret = NULL;
+ size_t n;
+
+ ocp = cp = strdup(s);
+ ASSERT_PTR_NE(cp, NULL);
+ for (n = 0; (cp2 = strsep(&cp, ",")) != NULL;) {
+ ret = recallocarray(ret, n, n + 1, sizeof(*ret));
+ ASSERT_PTR_NE(ret, NULL);
+ cp2 = strdup(cp2);
+ ASSERT_PTR_NE(cp2, NULL);
+ ret[n++] = cp2;
+ }
+ free(ocp);
+ *np = n;
+ return ret;
+}
+
+static void
+compare_opts(const struct sshauthopt *opts,
+ const struct sshauthopt *expected)
+{
+ size_t i;
+
+ ASSERT_PTR_NE(opts, NULL);
+ ASSERT_PTR_NE(expected, NULL);
+ ASSERT_PTR_NE(expected, opts); /* bozo :) */
+
+#define FLAG_EQ(x) ASSERT_INT_EQ(opts->x, expected->x)
+ FLAG_EQ(permit_port_forwarding_flag);
+ FLAG_EQ(permit_agent_forwarding_flag);
+ FLAG_EQ(permit_x11_forwarding_flag);
+ FLAG_EQ(permit_pty_flag);
+ FLAG_EQ(permit_user_rc);
+ FLAG_EQ(restricted);
+ FLAG_EQ(cert_authority);
+#undef FLAG_EQ
+
+#define STR_EQ(x) \
+ do { \
+ if (expected->x == NULL) \
+ ASSERT_PTR_EQ(opts->x, expected->x); \
+ else \
+ ASSERT_STRING_EQ(opts->x, expected->x); \
+ } while (0)
+ STR_EQ(cert_principals);
+ STR_EQ(force_command);
+ STR_EQ(required_from_host_cert);
+ STR_EQ(required_from_host_keys);
+#undef STR_EQ
+
+#define ARRAY_EQ(nx, x) \
+ do { \
+ ASSERT_SIZE_T_EQ(opts->nx, expected->nx); \
+ if (expected->nx == 0) \
+ break; \
+ for (i = 0; i < expected->nx; i++) \
+ ASSERT_STRING_EQ(opts->x[i], expected->x[i]); \
+ } while (0)
+ ARRAY_EQ(nenv, env);
+ ARRAY_EQ(npermitopen, permitopen);
+#undef ARRAY_EQ
+}
+
+static void
+test_authkeys_parse(void)
+{
+ struct sshauthopt *opts, *expected;
+ const char *errstr;
+
+#define FAIL_TEST(label, keywords) \
+ do { \
+ TEST_START("sshauthopt_parse invalid " label); \
+ opts = sshauthopt_parse(keywords, &errstr); \
+ ASSERT_PTR_EQ(opts, NULL); \
+ ASSERT_PTR_NE(errstr, NULL); \
+ TEST_DONE(); \
+ } while (0)
+#define CHECK_SUCCESS_AND_CLEANUP() \
+ do { \
+ if (errstr != NULL) \
+ ASSERT_STRING_EQ(errstr, ""); \
+ compare_opts(opts, expected); \
+ sshauthopt_free(expected); \
+ sshauthopt_free(opts); \
+ } while (0)
+
+ /* Basic tests */
+ TEST_START("sshauthopt_parse empty");
+ expected = default_authkey_opts();
+ opts = sshauthopt_parse("", &errstr);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ TEST_START("sshauthopt_parse trailing whitespace");
+ expected = default_authkey_opts();
+ opts = sshauthopt_parse(" ", &errstr);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ TEST_START("sshauthopt_parse restrict");
+ expected = default_authkey_restrict_opts();
+ opts = sshauthopt_parse("restrict", &errstr);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ /* Invalid syntax */
+ FAIL_TEST("trailing comma", "restrict,");
+ FAIL_TEST("bare comma", ",");
+ FAIL_TEST("unknown option", "BLAH");
+ FAIL_TEST("unknown option with trailing comma", "BLAH,");
+ FAIL_TEST("unknown option with trailing whitespace", "BLAH ");
+
+ /* force_tun_device */
+ TEST_START("sshauthopt_parse tunnel explicit");
+ expected = default_authkey_opts();
+ expected->force_tun_device = 1;
+ opts = sshauthopt_parse("tunnel=\"1\"", &errstr);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ TEST_START("sshauthopt_parse tunnel any");
+ expected = default_authkey_opts();
+ expected->force_tun_device = SSH_TUNID_ANY;
+ opts = sshauthopt_parse("tunnel=\"any\"", &errstr);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ FAIL_TEST("tunnel", "tunnel=\"blah\"");
+
+ /* Flag options */
+#define FLAG_TEST(keyword, var, val) \
+ do { \
+ TEST_START("sshauthopt_parse " keyword); \
+ expected = default_authkey_opts(); \
+ expected->var = val; \
+ opts = sshauthopt_parse(keyword, &errstr); \
+ CHECK_SUCCESS_AND_CLEANUP(); \
+ expected = default_authkey_restrict_opts(); \
+ expected->var = val; \
+ opts = sshauthopt_parse("restrict,"keyword, &errstr); \
+ CHECK_SUCCESS_AND_CLEANUP(); \
+ TEST_DONE(); \
+ } while (0)
+ /* Positive flags */
+ FLAG_TEST("cert-authority", cert_authority, 1);
+ FLAG_TEST("port-forwarding", permit_port_forwarding_flag, 1);
+ FLAG_TEST("agent-forwarding", permit_agent_forwarding_flag, 1);
+ FLAG_TEST("x11-forwarding", permit_x11_forwarding_flag, 1);
+ FLAG_TEST("pty", permit_pty_flag, 1);
+ FLAG_TEST("user-rc", permit_user_rc, 1);
+ /* Negative flags */
+ FLAG_TEST("no-port-forwarding", permit_port_forwarding_flag, 0);
+ FLAG_TEST("no-agent-forwarding", permit_agent_forwarding_flag, 0);
+ FLAG_TEST("no-x11-forwarding", permit_x11_forwarding_flag, 0);
+ FLAG_TEST("no-pty", permit_pty_flag, 0);
+ FLAG_TEST("no-user-rc", permit_user_rc, 0);
+#undef FLAG_TEST
+ FAIL_TEST("no-cert-authority", "no-cert-authority");
+
+ /* String options */
+#define STRING_TEST(keyword, var, val) \
+ do { \
+ TEST_START("sshauthopt_parse " keyword); \
+ expected = default_authkey_opts(); \
+ expected->var = strdup(val); \
+ ASSERT_PTR_NE(expected->var, NULL); \
+ opts = sshauthopt_parse(keyword "=" #val, &errstr); \
+ CHECK_SUCCESS_AND_CLEANUP(); \
+ expected = default_authkey_restrict_opts(); \
+ expected->var = strdup(val); \
+ ASSERT_PTR_NE(expected->var, NULL); \
+ opts = sshauthopt_parse( \
+ "restrict," keyword "=" #val ",restrict", &errstr); \
+ CHECK_SUCCESS_AND_CLEANUP(); \
+ TEST_DONE(); \
+ } while (0)
+ STRING_TEST("command", force_command, "/bin/true");
+ STRING_TEST("principals", cert_principals, "gregor,josef,K");
+ STRING_TEST("from", required_from_host_keys, "127.0.0.0/8");
+#undef STRING_TEST
+ FAIL_TEST("unquoted command", "command=oops");
+ FAIL_TEST("unquoted principals", "principals=estragon");
+ FAIL_TEST("unquoted from", "from=127.0.0.1");
+
+ /* String array option tests */
+#define ARRAY_TEST(label, keywords, var, nvar, val) \
+ do { \
+ TEST_START("sshauthopt_parse " label); \
+ expected = default_authkey_opts(); \
+ expected->var = commasplit(val, &expected->nvar); \
+ ASSERT_PTR_NE(expected->var, NULL); \
+ opts = sshauthopt_parse(keywords, &errstr); \
+ CHECK_SUCCESS_AND_CLEANUP(); \
+ expected = default_authkey_restrict_opts(); \
+ expected->var = commasplit(val, &expected->nvar); \
+ ASSERT_PTR_NE(expected->var, NULL); \
+ opts = sshauthopt_parse( \
+ "restrict," keywords ",restrict", &errstr); \
+ CHECK_SUCCESS_AND_CLEANUP(); \
+ TEST_DONE(); \
+ } while (0)
+ ARRAY_TEST("environment", "environment=\"foo=1\",environment=\"bar=2\"",
+ env, nenv, "foo=1,bar=2");
+ ARRAY_TEST("permitopen", "permitopen=\"foo:123\",permitopen=\"bar:*\"",
+ permitopen, npermitopen, "foo:123,bar:*");
+#undef ARRAY_TEST
+ FAIL_TEST("environment", "environment=\",=bah\"");
+ FAIL_TEST("permitopen port", "foo:bar");
+ FAIL_TEST("permitopen missing port", "foo:");
+ FAIL_TEST("permitopen missing port specification", "foo");
+ FAIL_TEST("permitopen invalid host", "[:");
+
+#undef CHECK_SUCCESS_AND_CLEANUP
+#undef FAIL_TEST
+}
+
+static void
+test_cert_parse(void)
+{
+ struct sshkey *cert;
+ struct sshauthopt *opts, *expected;
+
+#define CHECK_SUCCESS_AND_CLEANUP() \
+ do { \
+ compare_opts(opts, expected); \
+ sshauthopt_free(expected); \
+ sshauthopt_free(opts); \
+ sshkey_free(cert); \
+ } while (0)
+#define FLAG_TEST(keybase, var) \
+ do { \
+ TEST_START("sshauthopt_from_cert no_" keybase); \
+ cert = load_key("no_" keybase ".cert"); \
+ expected = default_authkey_opts(); \
+ expected->var = 0; \
+ opts = sshauthopt_from_cert(cert); \
+ CHECK_SUCCESS_AND_CLEANUP(); \
+ TEST_DONE(); \
+ TEST_START("sshauthopt_from_cert only_" keybase); \
+ cert = load_key("only_" keybase ".cert"); \
+ expected = sshauthopt_new(); \
+ ASSERT_PTR_NE(expected, NULL); \
+ expected->var = 1; \
+ opts = sshauthopt_from_cert(cert); \
+ CHECK_SUCCESS_AND_CLEANUP(); \
+ TEST_DONE(); \
+ } while (0)
+ FLAG_TEST("agentfwd", permit_agent_forwarding_flag);
+ FLAG_TEST("portfwd", permit_port_forwarding_flag);
+ FLAG_TEST("pty", permit_pty_flag);
+ FLAG_TEST("user_rc", permit_user_rc);
+ FLAG_TEST("x11fwd", permit_x11_forwarding_flag);
+#undef FLAG_TEST
+
+ TEST_START("sshauthopt_from_cert all permitted");
+ cert = load_key("all_permit.cert");
+ expected = default_authkey_opts();
+ opts = sshauthopt_from_cert(cert);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ TEST_START("sshauthopt_from_cert nothing permitted");
+ cert = load_key("no_permit.cert");
+ expected = sshauthopt_new();
+ ASSERT_PTR_NE(expected, NULL);
+ opts = sshauthopt_from_cert(cert);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ TEST_START("sshauthopt_from_cert force-command");
+ cert = load_key("force_command.cert");
+ expected = default_authkey_opts();
+ expected->force_command = strdup("foo");
+ ASSERT_PTR_NE(expected->force_command, NULL);
+ opts = sshauthopt_from_cert(cert);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ TEST_START("sshauthopt_from_cert source-address");
+ cert = load_key("sourceaddr.cert");
+ expected = default_authkey_opts();
+ expected->required_from_host_cert = strdup("127.0.0.1/32,::1/128");
+ ASSERT_PTR_NE(expected->required_from_host_cert, NULL);
+ opts = sshauthopt_from_cert(cert);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+#undef CHECK_SUCCESS_AND_CLEANUP
+
+#define FAIL_TEST(keybase) \
+ do { \
+ TEST_START("sshauthopt_from_cert " keybase); \
+ cert = load_key(keybase ".cert"); \
+ opts = sshauthopt_from_cert(cert); \
+ ASSERT_PTR_EQ(opts, NULL); \
+ sshkey_free(cert); \
+ TEST_DONE(); \
+ } while (0)
+ FAIL_TEST("host");
+ FAIL_TEST("bad_sourceaddr");
+ FAIL_TEST("unknown_critical");
+#undef FAIL_TEST
+}
+
+static void
+test_merge(void)
+{
+ struct sshkey *cert;
+ struct sshauthopt *key_opts, *cert_opts, *merge_opts, *expected;
+ const char *errstr;
+
+ /*
+ * Prepare for a test by making some key and cert options and
+ * attempting to merge them.
+ */
+#define PREPARE(label, keyname, keywords) \
+ do { \
+ expected = NULL; \
+ TEST_START("sshauthopt_merge " label); \
+ cert = load_key(keyname ".cert"); \
+ cert_opts = sshauthopt_from_cert(cert); \
+ ASSERT_PTR_NE(cert_opts, NULL); \
+ key_opts = sshauthopt_parse(keywords, &errstr); \
+ if (errstr != NULL) \
+ ASSERT_STRING_EQ(errstr, ""); \
+ ASSERT_PTR_NE(key_opts, NULL); \
+ merge_opts = sshauthopt_merge(key_opts, \
+ cert_opts, &errstr); \
+ } while (0)
+
+ /* Cleanup stuff allocated by PREPARE() */
+#define CLEANUP() \
+ do { \
+ sshauthopt_free(expected); \
+ sshauthopt_free(merge_opts); \
+ sshauthopt_free(key_opts); \
+ sshauthopt_free(cert_opts); \
+ sshkey_free(cert); \
+ } while (0)
+
+ /* Check the results of PREPARE() against expectation; calls CLEANUP */
+#define CHECK_SUCCESS_AND_CLEANUP() \
+ do { \
+ if (errstr != NULL) \
+ ASSERT_STRING_EQ(errstr, ""); \
+ compare_opts(merge_opts, expected); \
+ CLEANUP(); \
+ } while (0)
+
+ /* Check a single case of merging of flag options */
+#define FLAG_CASE(keybase, label, keyname, keywords, mostly_off, var, val) \
+ do { \
+ PREPARE(keybase " " label, keyname, keywords); \
+ expected = mostly_off ? \
+ sshauthopt_new() : default_authkey_opts(); \
+ expected->var = val; \
+ ASSERT_PTR_NE(expected, NULL); \
+ CHECK_SUCCESS_AND_CLEANUP(); \
+ TEST_DONE(); \
+ } while (0)
+
+ /*
+ * Fairly exhaustive exercise of a flag option. Tests
+ * option both set and clear in certificate, set and clear in
+ * authorized_keys and set and cleared via restrict keyword.
+ */
+#define FLAG_TEST(keybase, keyword, var) \
+ do { \
+ FLAG_CASE(keybase, "keys:default,yes cert:default,no", \
+ "no_" keybase, keyword, 0, var, 0); \
+ FLAG_CASE(keybase,"keys:-*,yes cert:default,no", \
+ "no_" keybase, "restrict," keyword, 1, var, 0); \
+ FLAG_CASE(keybase, "keys:default,no cert:default,no", \
+ "no_" keybase, "no-" keyword, 0, var, 0); \
+ FLAG_CASE(keybase, "keys:-*,no cert:default,no", \
+ "no_" keybase, "restrict,no-" keyword, 1, var, 0); \
+ \
+ FLAG_CASE(keybase, "keys:default,yes cert:-*,yes", \
+ "only_" keybase, keyword, 1, var, 1); \
+ FLAG_CASE(keybase,"keys:-*,yes cert:-*,yes", \
+ "only_" keybase, "restrict," keyword, 1, var, 1); \
+ FLAG_CASE(keybase, "keys:default,no cert:-*,yes", \
+ "only_" keybase, "no-" keyword, 1, var, 0); \
+ FLAG_CASE(keybase, "keys:-*,no cert:-*,yes", \
+ "only_" keybase, "restrict,no-" keyword, 1, var, 0); \
+ \
+ FLAG_CASE(keybase, "keys:default,yes cert:-*", \
+ "no_permit", keyword, 1, var, 0); \
+ FLAG_CASE(keybase,"keys:-*,yes cert:-*", \
+ "no_permit", "restrict," keyword, 1, var, 0); \
+ FLAG_CASE(keybase, "keys:default,no cert:-*", \
+ "no_permit", "no-" keyword, 1, var, 0); \
+ FLAG_CASE(keybase, "keys:-*,no cert:-*", \
+ "no_permit", "restrict,no-" keyword, 1, var, 0); \
+ \
+ FLAG_CASE(keybase, "keys:default,yes cert:*", \
+ "all_permit", keyword, 0, var, 1); \
+ FLAG_CASE(keybase,"keys:-*,yes cert:*", \
+ "all_permit", "restrict," keyword, 1, var, 1); \
+ FLAG_CASE(keybase, "keys:default,no cert:*", \
+ "all_permit", "no-" keyword, 0, var, 0); \
+ FLAG_CASE(keybase, "keys:-*,no cert:*", \
+ "all_permit", "restrict,no-" keyword, 1, var, 0); \
+ \
+ } while (0)
+ FLAG_TEST("portfwd", "port-forwarding", permit_port_forwarding_flag);
+ FLAG_TEST("agentfwd", "agent-forwarding", permit_agent_forwarding_flag);
+ FLAG_TEST("pty", "pty", permit_pty_flag);
+ FLAG_TEST("user_rc", "user-rc", permit_user_rc);
+ FLAG_TEST("x11fwd", "x11-forwarding", permit_x11_forwarding_flag);
+#undef FLAG_TEST
+
+ PREPARE("source-address both", "sourceaddr", "from=\"127.0.0.1\"");
+ expected = default_authkey_opts();
+ expected->required_from_host_cert = strdup("127.0.0.1/32,::1/128");
+ ASSERT_PTR_NE(expected->required_from_host_cert, NULL);
+ expected->required_from_host_keys = strdup("127.0.0.1");
+ ASSERT_PTR_NE(expected->required_from_host_keys, NULL);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ PREPARE("source-address none", "all_permit", "");
+ expected = default_authkey_opts();
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ PREPARE("source-address keys", "all_permit", "from=\"127.0.0.1\"");
+ expected = default_authkey_opts();
+ expected->required_from_host_keys = strdup("127.0.0.1");
+ ASSERT_PTR_NE(expected->required_from_host_keys, NULL);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ PREPARE("source-address cert", "sourceaddr", "");
+ expected = default_authkey_opts();
+ expected->required_from_host_cert = strdup("127.0.0.1/32,::1/128");
+ ASSERT_PTR_NE(expected->required_from_host_cert, NULL);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ PREPARE("force-command both", "force_command", "command=\"foo\"");
+ expected = default_authkey_opts();
+ expected->force_command = strdup("foo");
+ ASSERT_PTR_NE(expected->force_command, NULL);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ PREPARE("force-command none", "all_permit", "");
+ expected = default_authkey_opts();
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ PREPARE("force-command keys", "all_permit", "command=\"bar\"");
+ expected = default_authkey_opts();
+ expected->force_command = strdup("bar");
+ ASSERT_PTR_NE(expected->force_command, NULL);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ PREPARE("force-command cert", "force_command", "");
+ expected = default_authkey_opts();
+ expected->force_command = strdup("foo");
+ ASSERT_PTR_NE(expected->force_command, NULL);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ PREPARE("force-command mismatch", "force_command", "command=\"bar\"");
+ ASSERT_PTR_EQ(merge_opts, NULL);
+ CLEANUP();
+ TEST_DONE();
+
+ PREPARE("tunnel", "all_permit", "tunnel=\"6\"");
+ expected = default_authkey_opts();
+ expected->force_tun_device = 6;
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ PREPARE("permitopen", "all_permit",
+ "permitopen=\"127.0.0.1:*\",permitopen=\"127.0.0.1:123\"");
+ expected = default_authkey_opts();
+ expected->permitopen = commasplit("127.0.0.1:*,127.0.0.1:123",
+ &expected->npermitopen);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+
+ PREPARE("environment", "all_permit",
+ "environment=\"foo=a\",environment=\"bar=b\"");
+ expected = default_authkey_opts();
+ expected->env = commasplit("foo=a,bar=b", &expected->nenv);
+ CHECK_SUCCESS_AND_CLEANUP();
+ TEST_DONE();
+}
+
+void
+tests(void)
+{
+ extern char *__progname;
+ LogLevel ll = test_is_verbose() ?
+ SYSLOG_LEVEL_DEBUG3 : SYSLOG_LEVEL_QUIET;
+
+ /* test_cert_parse() are a bit spammy to error() by default... */
+ log_init(__progname, ll, SYSLOG_FACILITY_USER, 1);
+
+ test_authkeys_parse();
+ test_cert_parse();
+ test_merge();
+}