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-rw-r--r--regress/unittests/kex/test_proposal.c83
1 files changed, 83 insertions, 0 deletions
diff --git a/regress/unittests/kex/test_proposal.c b/regress/unittests/kex/test_proposal.c
new file mode 100644
index 0000000..d6cf0f5
--- /dev/null
+++ b/regress/unittests/kex/test_proposal.c
@@ -0,0 +1,83 @@
+/* $OpenBSD: test_proposal.c,v 1.1 2023/02/02 12:12:52 djm Exp $ */
+/*
+ * Regress test KEX
+ *
+ * Placed in the public domain
+ */
+
+#include "includes.h"
+
+#include <sys/types.h>
+#include <signal.h>
+#include <stdio.h>
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif
+#include <stdlib.h>
+#include <string.h>
+
+#include "../test_helper/test_helper.h"
+
+#include "compat.h"
+#include "ssherr.h"
+#include "sshbuf.h"
+#include "kex.h"
+#include "packet.h"
+#include "xmalloc.h"
+
+void kex_proposal(void);
+
+#define CURVE25519 "curve25519-sha256@libssh.org"
+#define DHGEX1 "diffie-hellman-group-exchange-sha1"
+#define DHGEX256 "diffie-hellman-group-exchange-sha256"
+#define KEXALGOS CURVE25519","DHGEX256","DHGEX1
+void
+kex_proposal(void)
+{
+ size_t i;
+ struct ssh ssh;
+ char *result, *out, *in;
+ struct {
+ char *in; /* TODO: make this const */
+ char *out;
+ int compat;
+ } tests[] = {
+ { KEXALGOS, KEXALGOS, 0},
+ { KEXALGOS, DHGEX256","DHGEX1, SSH_BUG_CURVE25519PAD },
+ { KEXALGOS, CURVE25519, SSH_OLD_DHGEX },
+ { "a,"KEXALGOS, "a", SSH_BUG_CURVE25519PAD|SSH_OLD_DHGEX },
+ /* TODO: enable once compat_kex_proposal doesn't fatal() */
+ /* { KEXALGOS, "", SSH_BUG_CURVE25519PAD|SSH_OLD_DHGEX }, */
+ };
+
+ TEST_START("compat_kex_proposal");
+ for (i = 0; i < sizeof(tests) / sizeof(*tests); i++) {
+ ssh.compat = tests[i].compat;
+ /* match entire string */
+ result = compat_kex_proposal(&ssh, tests[i].in);
+ ASSERT_STRING_EQ(result, tests[i].out);
+ free(result);
+ /* match at end */
+ in = kex_names_cat("a", tests[i].in);
+ out = kex_names_cat("a", tests[i].out);
+ result = compat_kex_proposal(&ssh, in);
+ ASSERT_STRING_EQ(result, out);
+ free(result); free(in); free(out);
+ /* match at start */
+ in = kex_names_cat(tests[i].in, "a");
+ out = kex_names_cat(tests[i].out, "a");
+ result = compat_kex_proposal(&ssh, in);
+ ASSERT_STRING_EQ(result, out);
+ free(result); free(in); free(out);
+ /* match in middle */
+ xasprintf(&in, "a,%s,b", tests[i].in);
+ if (*(tests[i].out) == '\0')
+ out = xstrdup("a,b");
+ else
+ xasprintf(&out, "a,%s,b", tests[i].out);
+ result = compat_kex_proposal(&ssh, in);
+ ASSERT_STRING_EQ(result, out);
+ free(result); free(in); free(out);
+ }
+ TEST_DONE();
+}