Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

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

1 files changed, 258 insertions, 0 deletions

diff --git a/third_party/heimdal/lib/krb5/verify_user.c b/third_party/heimdal/lib/krb5/verify_user.c
new file mode 100644
index 0000000..c6ead8e
--- /dev/null
+++ b/third_party/heimdal/lib/krb5/verify_user.c
@@ -0,0 +1,258 @@
+/*
+ * Copyright (c) 1997-2004 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 "krb5_locl.h"
+
+static krb5_error_code
+verify_common (krb5_context context,
+	       krb5_principal principal,
+	       krb5_ccache ccache,
+	       krb5_keytab keytab,
+	       krb5_boolean secure,
+	       const char *service,
+	       krb5_creds *cred)
+{
+    krb5_error_code ret;
+    krb5_principal server;
+    krb5_verify_init_creds_opt vopt;
+    krb5_ccache id;
+
+    ret = krb5_sname_to_principal (context, NULL, service, KRB5_NT_SRV_HST,
+				   &server);
+    if(ret)
+	return ret;
+
+    krb5_verify_init_creds_opt_init(&vopt);
+    krb5_verify_init_creds_opt_set_ap_req_nofail(&vopt, secure);
+
+    ret = krb5_verify_init_creds(context,
+				 cred,
+				 server,
+				 keytab,
+				 NULL,
+				 &vopt);
+    krb5_free_principal(context, server);
+    if(ret)
+	return ret;
+    if(ccache == NULL)
+	ret = krb5_cc_default (context, &id);
+    else
+	id = ccache;
+    if(ret == 0){
+	ret = krb5_cc_initialize(context, id, principal);
+	if(ret == 0){
+	    ret = krb5_cc_store_cred(context, id, cred);
+	}
+	if(ccache == NULL)
+	    krb5_cc_close(context, id);
+    }
+    return ret;
+}
+
+/*
+ * Verify user `principal' with `password'.
+ *
+ * If `secure', also verify against local service key for `service'.
+ *
+ * As a side effect, fresh tickets are obtained and stored in `ccache'.
+ */
+
+KRB5_LIB_FUNCTION void KRB5_LIB_CALL
+krb5_verify_opt_init(krb5_verify_opt *opt)
+{
+    memset(opt, 0, sizeof(*opt));
+    opt->secure = TRUE;
+    opt->service = "host";
+}
+
+KRB5_LIB_FUNCTION int KRB5_LIB_CALL
+krb5_verify_opt_alloc(krb5_context context, krb5_verify_opt **opt)
+{
+    *opt = calloc(1, sizeof(**opt));
+    if ((*opt) == NULL)
+	return krb5_enomem(context);
+    krb5_verify_opt_init(*opt);
+    return 0;
+}
+
+KRB5_LIB_FUNCTION void KRB5_LIB_CALL
+krb5_verify_opt_free(krb5_verify_opt *opt)
+{
+    free(opt);
+}
+
+KRB5_LIB_FUNCTION void KRB5_LIB_CALL
+krb5_verify_opt_set_ccache(krb5_verify_opt *opt, krb5_ccache ccache)
+{
+    opt->ccache = ccache;
+}
+
+KRB5_LIB_FUNCTION void KRB5_LIB_CALL
+krb5_verify_opt_set_keytab(krb5_verify_opt *opt, krb5_keytab keytab)
+{
+    opt->keytab = keytab;
+}
+
+KRB5_LIB_FUNCTION void KRB5_LIB_CALL
+krb5_verify_opt_set_secure(krb5_verify_opt *opt, krb5_boolean secure)
+{
+    opt->secure = secure;
+}
+
+KRB5_LIB_FUNCTION void KRB5_LIB_CALL
+krb5_verify_opt_set_service(krb5_verify_opt *opt, const char *service)
+{
+    opt->service = service;
+}
+
+KRB5_LIB_FUNCTION void KRB5_LIB_CALL
+krb5_verify_opt_set_flags(krb5_verify_opt *opt, unsigned int flags)
+{
+    opt->flags |= flags;
+}
+
+static krb5_error_code
+verify_user_opt_int(krb5_context context,
+		    krb5_principal principal,
+		    const char *password,
+		    krb5_verify_opt *vopt)
+
+{
+    krb5_error_code ret;
+    krb5_get_init_creds_opt *opt;
+    krb5_creds cred;
+
+    ret = krb5_get_init_creds_opt_alloc (context, &opt);
+    if (ret)
+	return ret;
+    krb5_get_init_creds_opt_set_default_flags(context, NULL,
+					      krb5_principal_get_realm(context, principal),
+					      opt);
+    ret = krb5_get_init_creds_password (context,
+					&cred,
+					principal,
+					password,
+					krb5_prompter_posix,
+					NULL,
+					0,
+					NULL,
+					opt);
+    krb5_get_init_creds_opt_free(context, opt);
+    if(ret)
+	return ret;
+#define OPT(V, D) ((vopt && (vopt->V)) ? (vopt->V) : (D))
+    ret = verify_common (context, principal, OPT(ccache, NULL),
+			  OPT(keytab, NULL), vopt ? vopt->secure : TRUE,
+			  OPT(service, "host"), &cred);
+#undef OPT
+    krb5_free_cred_contents(context, &cred);
+    return ret;
+}
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_verify_user_opt(krb5_context context,
+		     krb5_principal principal,
+		     const char *password,
+		     krb5_verify_opt *opt)
+{
+    krb5_error_code ret;
+
+    if(opt && (opt->flags & KRB5_VERIFY_LREALMS)) {
+	krb5_realm *realms, *r;
+	ret = krb5_get_default_realms (context, &realms);
+	if (ret)
+	    return ret;
+	ret = KRB5_CONFIG_NODEFREALM;
+
+	for (r = realms; *r != NULL && ret != 0; ++r) {
+	    ret = krb5_principal_set_realm(context, principal, *r);
+	    if (ret) {
+		krb5_free_host_realm (context, realms);
+		return ret;
+	    }
+
+	    ret = verify_user_opt_int(context, principal, password, opt);
+	}
+	krb5_free_host_realm (context, realms);
+	if(ret)
+	    return ret;
+    } else
+	ret = verify_user_opt_int(context, principal, password, opt);
+    return ret;
+}
+
+/* compat function that calls above */
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_verify_user(krb5_context context,
+		 krb5_principal principal,
+		 krb5_ccache ccache,
+		 const char *password,
+		 krb5_boolean secure,
+		 const char *service)
+{
+    krb5_verify_opt opt;
+
+    krb5_verify_opt_init(&opt);
+
+    krb5_verify_opt_set_ccache(&opt, ccache);
+    krb5_verify_opt_set_secure(&opt, secure);
+    krb5_verify_opt_set_service(&opt, service);
+
+    return krb5_verify_user_opt(context, principal, password, &opt);
+}
+
+/*
+ * A variant of `krb5_verify_user'.  The realm of `principal' is
+ * ignored and all the local realms are tried.
+ */
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_verify_user_lrealm(krb5_context context,
+			krb5_principal principal,
+			krb5_ccache ccache,
+			const char *password,
+			krb5_boolean secure,
+			const char *service)
+{
+    krb5_verify_opt opt;
+
+    krb5_verify_opt_init(&opt);
+
+    krb5_verify_opt_set_ccache(&opt, ccache);
+    krb5_verify_opt_set_secure(&opt, secure);
+    krb5_verify_opt_set_service(&opt, service);
+    krb5_verify_opt_set_flags(&opt, KRB5_VERIFY_LREALMS);
+
+    return krb5_verify_user_opt(context, principal, password, &opt);
+}