1 files changed, 128 insertions, 0 deletions
diff --git a/src/tests/icinterleave.c b/src/tests/icinterleave.c
new file mode 100644
index 000000000000..a1bdd3547f08
--- /dev/null
+++ b/src/tests/icinterleave.c
@@ -0,0 +1,128 @@
+/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+/* tests/icinterleave.c - interleaved init_creds_step test harness */
+/*
+ * Copyright (C) 2017 by the Massachusetts Institute of Technology.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in
+ *   the documentation and/or other materials provided with the
+ *   distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This test harness performs multiple initial creds operations using
+ * krb5_init_creds_step(), interleaving the operations to test the scoping of
+ * the preauth state.  All principals must have the same password (or not
+ * require a password).
+ */
+
+#include "k5-int.h"
+
+static krb5_context ctx;
+
+static void
+check(krb5_error_code code)
+{
+    const char *errmsg;
+
+    if (code) {
+        errmsg = krb5_get_error_message(ctx, code);
+        fprintf(stderr, "%s\n", errmsg);
+        krb5_free_error_message(ctx, errmsg);
+        exit(1);
+    }
+}
+
+int
+main(int argc, char **argv)
+{
+    const char *password;
+    char **princstrs;
+    krb5_principal client;
+    krb5_init_creds_context *iccs;
+    krb5_data req, *reps, realm;
+    krb5_boolean any_left;
+    int i, nclients, master;
+    unsigned int flags;
+
+    if (argc < 3) {
+        fprintf(stderr, "Usage: icinterleave password princ1 princ2 ...\n");
+        exit(1);
+    }
+    password = argv[1];
+    princstrs = argv + 2;
+    nclients = argc - 2;
+
+    check(krb5_init_context(&ctx));
+
+    /* Create an initial creds context for each client principal. */
+    iccs = calloc(nclients, sizeof(*iccs));
+    assert(iccs != NULL);
+    for (i = 0; i < nclients; i++) {
+        check(krb5_parse_name(ctx, princstrs[i], &client));
+        check(krb5_init_creds_init(ctx, client, NULL, NULL, 0, NULL,
+                                   &iccs[i]));
+        check(krb5_init_creds_set_password(ctx, iccs[i], password));
+        krb5_free_principal(ctx, client);
+    }
+
+    reps = calloc(nclients, sizeof(*reps));
+    assert(reps != NULL);
+
+    any_left = TRUE;
+    while (any_left) {
+        any_left = FALSE;
+        for (i = 0; i < nclients; i++)  {
+            if (iccs[i] == NULL)
+                continue;
+            any_left = TRUE;
+
+            printf("step %d\n", i + 1);
+
+            req = empty_data();
+            realm = empty_data();
+            check(krb5_init_creds_step(ctx, iccs[i], &reps[i], &req, &realm,
+                                       &flags));
+            if (!(flags & KRB5_INIT_CREDS_STEP_FLAG_CONTINUE)) {
+                printf("finish %d\n", i + 1);
+                krb5_init_creds_free(ctx, iccs[i]);
+                iccs[i] = NULL;
+                continue;
+            }
+
+            master = 0;
+            krb5_free_data_contents(ctx, &reps[i]);
+            check(krb5_sendto_kdc(ctx, &req, &realm, &reps[i], &master, 0));
+            krb5_free_data_contents(ctx, &req);
+            krb5_free_data_contents(ctx, &realm);
+        }
+    }
+
+    for (i = 0; i < nclients; i++)
+        krb5_free_data_contents(ctx, &reps[i]);
+    free(reps);
+    free(iccs);
+    krb5_free_context(ctx);
+    return 0;
+}