Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 215 insertions, 0 deletions

diff --git a/third_party/heimdal/kadmin/ext.c b/third_party/heimdal/kadmin/ext.c
new file mode 100644
index 0000000..adb2e28
--- /dev/null
+++ b/third_party/heimdal/kadmin/ext.c
@@ -0,0 +1,215 @@
+/*
+ * Copyright (c) 1997 - 2006 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. 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.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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.
+ */
+
+#include "kadmin_locl.h"
+#include "kadmin-commands.h"
+
+struct ext_keytab_data {
+    krb5_keytab keytab;
+    int keep;
+    int random_key_flag;
+    size_t nkstuple;
+    krb5_key_salt_tuple *kstuple;
+};
+
+static int
+do_ext_keytab(krb5_principal principal, void *data)
+{
+    krb5_error_code ret;
+    kadm5_principal_ent_rec princ;
+    struct ext_keytab_data *e = data;
+    krb5_keytab_entry *keys = NULL;
+    krb5_keyblock *k = NULL;
+    size_t i;
+    int n_k = 0;
+    uint32_t mask;
+    char *unparsed = NULL;
+
+    mask = KADM5_PRINCIPAL;
+    if (!e->random_key_flag)
+        mask |= KADM5_KVNO | KADM5_KEY_DATA;
+
+    ret = kadm5_get_principal(kadm_handle, principal, &princ, mask);
+    if (ret)
+	return ret;
+
+    ret = krb5_unparse_name(context, principal, &unparsed);
+    if (ret)
+	goto out;
+
+    if (!e->random_key_flag) {
+        if (princ.n_key_data == 0) {
+            krb5_warnx(context, "principal has no keys, or user lacks "
+                       "get-keys privilege for %s", unparsed);
+            goto out;
+        }
+        /*
+         * kadmin clients and servers from master between 1.5 and 1.6
+         * can have corrupted a principal's keys in the HDB.  If some
+         * are bogus but not all are, then that must have happened.
+         *
+         * If all keys are bogus then the server may be a pre-1.6,
+         * post-1.5 server and the client lacks get-keys privilege, or
+         * the keys are corrupted.  We can't tell here.
+         */
+        if (kadm5_all_keys_are_bogus(princ.n_key_data, princ.key_data)) {
+            krb5_warnx(context, "user lacks get-keys privilege for %s",
+                       unparsed);
+            goto out;
+        }
+        if (kadm5_some_keys_are_bogus(princ.n_key_data, princ.key_data)) {
+            krb5_warnx(context, "some keys for %s are corrupted in the HDB",
+                       unparsed);
+        }
+	keys = calloc(sizeof(*keys), princ.n_key_data);
+	if (keys == NULL) {
+	    ret = krb5_enomem(context);
+	    goto out;
+	}
+	for (i = 0; i < princ.n_key_data; i++) {
+	    krb5_key_data *kd = &princ.key_data[i];
+
+            /* Don't extract bogus keys */
+            if (kadm5_all_keys_are_bogus(1, kd))
+                continue;
+
+	    keys[i].principal = princ.principal;
+	    keys[i].vno = kd->key_data_kvno;
+	    keys[i].keyblock.keytype = kd->key_data_type[0];
+	    keys[i].keyblock.keyvalue.length = kd->key_data_length[0];
+	    keys[i].keyblock.keyvalue.data = kd->key_data_contents[0];
+	    keys[i].timestamp = time(NULL);
+            n_k++;
+	}
+    } else if (e->random_key_flag) {
+        ret = kadm5_randkey_principal_3(kadm_handle, principal, e->keep,
+                                        e->nkstuple, e->kstuple, &k, &n_k);
+	if (ret)
+	    goto out;
+
+	keys = calloc(sizeof(*keys), n_k);
+	if (keys == NULL) {
+	    ret = krb5_enomem(context);
+	    goto out;
+	}
+	for (i = 0; i < n_k; i++) {
+	    keys[i].principal = principal;
+	    keys[i].vno = princ.kvno + 1; /* XXX get entry again */
+	    keys[i].keyblock = k[i];
+	    keys[i].timestamp = time(NULL);
+	}
+    }
+
+    if (n_k == 0)
+        krb5_warn(context, ret, "no keys written to keytab for %s", unparsed);
+
+    for (i = 0; i < n_k; i++) {
+	ret = krb5_kt_add_entry(context, e->keytab, &keys[i]);
+	if (ret)
+	    krb5_warn(context, ret, "krb5_kt_add_entry(%lu)", (unsigned long)i);
+    }
+
+  out:
+    kadm5_free_principal_ent(kadm_handle, &princ);
+    if (k) {
+        for (i = 0; i < n_k; i++)
+            memset(k[i].keyvalue.data, 0, k[i].keyvalue.length);
+	free(k);
+    }
+    free(unparsed);
+    free(keys);
+    return ret;
+}
+
+int
+ext_keytab(struct ext_keytab_options *opt, int argc, char **argv)
+{
+    krb5_error_code ret;
+    struct ext_keytab_data data;
+    const char *enctypes;
+    size_t i;
+
+    data.random_key_flag = opt->random_key_flag;
+    data.keep = 1;
+    i = 0;
+    if (opt->keepallold_flag) {
+        data.keep = 2;
+        i++;
+    }
+    if (opt->keepold_flag) {
+        data.keep = 1;
+        i++;
+    }
+    if (opt->pruneall_flag) {
+        data.keep = 0;
+        i++;
+    }
+    if (i > 1) {
+        fprintf(stderr,
+                "use only one of --keepold, --keepallold, or --pruneall\n");
+        return EINVAL;
+    }
+
+    if (opt->keytab_string == NULL)
+	ret = krb5_kt_default(context, &data.keytab);
+    else
+	ret = krb5_kt_resolve(context, opt->keytab_string, &data.keytab);
+
+    if(ret){
+	krb5_warn(context, ret, "krb5_kt_resolve");
+	return 1;
+    }
+    enctypes = opt->enctypes_string;
+    if (enctypes == NULL || enctypes[0] == '\0')
+        enctypes = krb5_config_get_string(context, NULL, "libdefaults",
+                                          "supported_enctypes", NULL);
+    if (enctypes == NULL || enctypes[0] == '\0')
+        enctypes = "aes128-cts-hmac-sha1-96";
+    ret = krb5_string_to_keysalts2(context, enctypes, &data.nkstuple,
+                                   &data.kstuple);
+    if (ret) {
+        fprintf(stderr, "enctype(s) unknown\n");
+        krb5_kt_close(context, data.keytab);
+        return ret;
+    }
+
+    for(i = 0; i < argc; i++) {
+	ret = foreach_principal(argv[i], do_ext_keytab, "ext", &data);
+	if (ret)
+	    break;
+    }
+
+    krb5_kt_close(context, data.keytab);
+    free(data.kstuple);
+    return ret != 0;
+}