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, 371 insertions, 0 deletions

diff --git a/third_party/heimdal/kuser/kgetcred.c b/third_party/heimdal/kuser/kgetcred.c
new file mode 100644
index 0000000..4982f8a
--- /dev/null
+++ b/third_party/heimdal/kuser/kgetcred.c
@@ -0,0 +1,371 @@
+/*
+ * Copyright (c) 1997 - 2008 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 "kuser_locl.h"
+
+static char *cache_str;
+static char *out_cache_str;
+static char *delegation_cred_str;
+static char *etype_str;
+static int transit_flag = 1;
+static int forwardable_flag;
+static int canonicalize_flag;
+static int is_hostbased_flag;
+static int is_canonical_flag;
+static char *impersonate_str;
+static char *nametype_str;
+static int store_flag = 1;
+static int cached_only_flag;
+static int anonymous_flag;
+static int debug_flag;
+static int version_flag;
+static int help_flag;
+
+struct getargs args[] = {
+    { "cache",		'c', arg_string, &cache_str,
+      NP_("credential cache to use", ""), "cache"},
+    { "out-cache",	0,   arg_string, &out_cache_str,
+      NP_("credential cache to store credential in", ""), "cache"},
+    { "delegation-credential-cache",0,arg_string, &delegation_cred_str,
+      NP_("where to find the ticket use for delegation", ""), "cache"},
+    { "canonicalize",	0, arg_flag, &canonicalize_flag,
+      NP_("canonicalize the principal (chase referrals)", ""), NULL },
+    { "canonical",	0,   arg_flag, &is_canonical_flag,
+      NP_("the name components are canonical", ""), NULL },
+    { "forwardable",	0,   arg_flag, &forwardable_flag,
+      NP_("forwardable ticket requested", ""), NULL},
+    { "transit-check",	0,   arg_negative_flag, &transit_flag, NULL, NULL },
+    { "enctype",	'e', arg_string, &etype_str,
+      NP_("encryption type to use", ""), "enctype"},
+    { "impersonate",	0,   arg_string, &impersonate_str,
+      NP_("client to impersonate", ""), "principal"},
+    { "name-type",	0,   arg_string, &nametype_str,
+      NP_("Kerberos name type", ""), NULL },
+    { "hostbased",	'H', arg_flag, &is_hostbased_flag,
+      NP_("indicate that the name is a host-based service name", ""), NULL },
+    { "store", 	        0,   arg_negative_flag, &store_flag,
+      NP_("don't store the tickets obtained in the cache", ""), NULL },
+    { "cached-only", 	        0,   arg_flag, &cached_only_flag,
+      NP_("don't talk to the KDC, just search the cache", ""), NULL },
+    { "anonymous",      'n',   arg_flag, &anonymous_flag,
+      NP_("request an anonymous ticket", ""), NULL },
+    { "debug", 	        0,   arg_flag, &debug_flag, NULL, NULL },
+    { "version", 	0,   arg_flag, &version_flag, NULL, NULL },
+    { "help",		0,   arg_flag, &help_flag, NULL, NULL }
+};
+
+static void
+usage(int ret)
+{
+    arg_printusage(args,
+		   sizeof(args)/sizeof(*args),
+		   NULL,
+		   "service");
+    exit (ret);
+}
+
+int
+main(int argc, char **argv)
+{
+    krb5_error_code ret;
+    krb5_context context;
+    krb5_ccache cache;
+    krb5_creds *out;
+    int optidx = 0;
+    int32_t nametype = KRB5_NT_UNKNOWN;
+    krb5_get_creds_opt opt;
+    krb5_principal server = NULL;
+    krb5_principal impersonate;
+
+    setprogname(argv[0]);
+
+    ret = krb5_init_context(&context);
+    if (ret)
+	errx(1, "krb5_init_context failed: %d", ret);
+
+    if (getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
+	usage(1);
+
+    if (help_flag)
+	usage (0);
+
+    if (version_flag) {
+	print_version(NULL);
+	exit(0);
+    }
+
+    argc -= optidx;
+    argv += optidx;
+
+    if (debug_flag) {
+        ret = krb5_set_debug_dest(context, getprogname(), "STDERR");
+        if (ret)
+            krb5_warn(context, ret, "krb5_set_debug_dest");
+    }
+
+    if (cache_str) {
+	ret = krb5_cc_resolve(context, cache_str, &cache);
+	if (ret)
+	    krb5_err(context, 1, ret, "%s", cache_str);
+    } else {
+	ret = krb5_cc_default (context, &cache);
+	if (ret)
+	    krb5_err(context, 1, ret, "krb5_cc_resolve");
+    }
+
+    ret = krb5_get_creds_opt_alloc(context, &opt);
+    if (ret)
+	krb5_err(context, 1, ret, "krb5_get_creds_opt_alloc");
+
+    if (etype_str) {
+	krb5_enctype enctype;
+
+	ret = krb5_string_to_enctype(context, etype_str, &enctype);
+	if (ret)
+	    krb5_errx(context, 1, N_("unrecognized enctype: %s", ""),
+		      etype_str);
+	krb5_get_creds_opt_set_enctype(context, opt, enctype);
+    }
+
+    if (impersonate_str) {
+	ret = krb5_parse_name(context, impersonate_str, &impersonate);
+	if (ret)
+	    krb5_err(context, 1, ret, "krb5_parse_name %s", impersonate_str);
+	krb5_get_creds_opt_set_impersonate(context, opt, impersonate);
+	krb5_get_creds_opt_add_options(context, opt, KRB5_GC_NO_STORE);
+        krb5_free_principal(context, impersonate);
+    }
+
+    if (out_cache_str)
+	krb5_get_creds_opt_add_options(context, opt, KRB5_GC_NO_STORE);
+
+    if (forwardable_flag)
+	krb5_get_creds_opt_add_options(context, opt, KRB5_GC_FORWARDABLE);
+    if (!transit_flag)
+	krb5_get_creds_opt_add_options(context, opt, KRB5_GC_NO_TRANSIT_CHECK);
+    if (canonicalize_flag)
+	krb5_get_creds_opt_add_options(context, opt, KRB5_GC_CANONICALIZE);
+    if (!store_flag)
+	krb5_get_creds_opt_add_options(context, opt, KRB5_GC_NO_STORE);
+    if (cached_only_flag)
+	krb5_get_creds_opt_add_options(context, opt, KRB5_GC_CACHED);
+    if (anonymous_flag)
+	krb5_get_creds_opt_add_options(context, opt, KRB5_GC_ANONYMOUS);
+
+    if (delegation_cred_str) {
+	krb5_ccache id;
+	krb5_creds c, mc;
+	Ticket ticket;
+
+	krb5_cc_clear_mcred(&mc);
+	ret = krb5_cc_get_principal(context, cache, &mc.server);
+	if (ret)
+	    krb5_err(context, 1, ret, "krb5_cc_get_principal");
+
+	ret = krb5_cc_resolve(context, delegation_cred_str, &id);
+	if(ret)
+	    krb5_err(context, 1, ret, "krb5_cc_resolve");
+
+	ret = krb5_cc_retrieve_cred(context, id, 0, &mc, &c);
+	if(ret)
+	    krb5_err(context, 1, ret, "krb5_cc_retrieve_cred");
+
+	ret = decode_Ticket(c.ticket.data, c.ticket.length, &ticket, NULL);
+	if (ret) {
+	    krb5_clear_error_message(context);
+	    krb5_err(context, 1, ret, "decode_Ticket");
+	}
+	krb5_free_cred_contents(context, &c);
+
+	ret = krb5_get_creds_opt_set_ticket(context, opt, &ticket);
+	if(ret)
+	    krb5_err(context, 1, ret, "krb5_get_creds_opt_set_ticket");
+	free_Ticket(&ticket);
+
+	krb5_cc_close(context, id);
+	krb5_free_principal(context, mc.server);
+
+	krb5_get_creds_opt_add_options(context, opt,
+				       KRB5_GC_CONSTRAINED_DELEGATION);
+    }
+
+    if (nametype_str != NULL) {
+        ret = krb5_parse_nametype(context, nametype_str, &nametype);
+        if (ret)
+            krb5_err(context, 1, ret, "krb5_parse_nametype");
+    }
+
+    if (nametype == KRB5_NT_SRV_HST ||
+        nametype == KRB5_NT_SRV_HST_NEEDS_CANON)
+        is_hostbased_flag = 1;
+
+    if (is_hostbased_flag) {
+	const char *sname = NULL;
+	const char *hname = NULL;
+
+        if (nametype_str != NULL &&
+            nametype != KRB5_NT_SRV_HST &&
+            nametype != KRB5_NT_SRV_HST_NEEDS_CANON)
+            krb5_errx(context, 1, "--hostbased not compatible with "
+                      "non-hostbased --name-type");
+
+        if (is_canonical_flag)
+            nametype = KRB5_NT_SRV_HST;
+        else
+            nametype = KRB5_NT_SRV_HST_NEEDS_CANON;
+
+        /*
+         * Host-based service names can have more than one component.
+         *
+         * RFC5179 did not, but should have, assign a Kerberos name-type
+         * corresponding to GSS_C_NT_DOMAINBASED.  But it's basically a
+         * host-based service name type with one additional component.
+         *
+         * So that's how we're treating host-based service names here:
+         * two or more components.
+         */
+
+        if (argc == 0) {
+            usage(1);
+        } else if (argc == 1) {
+            krb5_principal server2;
+
+            /*
+             * In this case the one argument is a principal name, not the
+             * service name.
+             *
+             * We parse the argument as a principal name, extract the service
+             * and hostname components, use krb5_sname_to_principal(), then
+             * extract the service and hostname components from that.
+             */
+
+            ret = krb5_parse_name(context, argv[0], &server);
+            if (ret)
+                krb5_err(context, 1, ret, "krb5_parse_name %s", argv[0]);
+            sname = krb5_principal_get_comp_string(context, server, 0);
+
+            /*
+             * If a single-component principal name is given, then we'll
+             * default the hostname, as krb5_principal_get_comp_string()
+             * returns NULL in this case.
+             */
+            hname = krb5_principal_get_comp_string(context, server, 1);
+
+	    ret = krb5_sname_to_principal(context, hname, sname,
+					   KRB5_NT_SRV_HST, &server2);
+            if (ret)
+                krb5_err(context, 1, ret, "krb5_sname_to_principal %s %s",
+                         sname, hname);
+            sname = krb5_principal_get_comp_string(context, server2, 0);
+            hname = krb5_principal_get_comp_string(context, server2, 1);
+
+            /*
+             * Modify the original with the new sname/hname.  This way we
+             * retain any additional principal name components from the given
+             * principal name.
+             *
+             * The name-type is set further below.
+             */
+            ret = krb5_principal_set_comp_string(context, server, 0, sname);
+            if (ret)
+                krb5_err(context, 1, ret, "krb5_principal_set_comp_string %s", argv[0]);
+            ret = krb5_principal_set_comp_string(context, server, 1, hname);
+            if (ret)
+                krb5_err(context, 1, ret, "krb5_principal_set_comp_string %s", argv[0]);
+            krb5_free_principal(context, server2);
+        } else {
+            size_t i;
+
+            /*
+             * In this case the arguments are principal name components.
+             *
+             * The service and hostname components can be defaulted by passing
+             * empty strings.
+             */
+	    sname = argv[0];
+            if (*sname == '\0')
+                sname = NULL;
+	    hname = argv[1];
+            if (hname == NULL || *hname == '\0')
+                hname = NULL;
+	    ret = krb5_sname_to_principal(context, hname, sname,
+                                          KRB5_NT_SRV_HST, &server);
+	    if (ret)
+		krb5_err(context, 1, ret, "krb5_sname_to_principal");
+
+            for (i = 2; i < argc; i++) {
+                ret = krb5_principal_set_comp_string(context, server, i, argv[i]);
+                if (ret)
+                    krb5_err(context, 1, ret, "krb5_principal_set_comp_string");
+            }
+	}
+    } else if (argc == 1) {
+	ret = krb5_parse_name(context, argv[0], &server);
+	if (ret)
+	    krb5_err(context, 1, ret, "krb5_parse_name %s", argv[0]);
+    } else {
+	usage(1);
+    }
+
+    if (nametype != KRB5_NT_UNKNOWN)
+        server->name.name_type = (NAME_TYPE)nametype;
+
+    ret = krb5_get_creds(context, opt, cache, server, &out);
+    if (ret)
+	krb5_err(context, 1, ret, "krb5_get_creds");
+
+    if (out_cache_str) {
+	krb5_ccache id;
+
+	ret = krb5_cc_resolve(context, out_cache_str, &id);
+	if(ret)
+	    krb5_err(context, 1, ret, "krb5_cc_resolve");
+
+	ret = krb5_cc_initialize(context, id, out->client);
+	if(ret)
+	    krb5_err(context, 1, ret, "krb5_cc_initialize");
+
+	ret = krb5_cc_store_cred(context, id, out);
+	if(ret)
+	    krb5_err(context, 1, ret, "krb5_cc_store_cred");
+	krb5_cc_close(context, id);
+    }
+
+    krb5_free_creds(context, out);
+    krb5_free_principal(context, server);
+    krb5_get_creds_opt_free(context, opt);
+    krb5_cc_close (context, cache);
+    krb5_free_context (context);
+
+    return 0;
+}