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-rw-r--r--third_party/heimdal/appl/kf/kf.c349
1 files changed, 349 insertions, 0 deletions
diff --git a/third_party/heimdal/appl/kf/kf.c b/third_party/heimdal/appl/kf/kf.c
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+++ b/third_party/heimdal/appl/kf/kf.c
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+/*
+ * Copyright (c) 1997 - 2000, 2002 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 "kf_locl.h"
+RCSID("$Id$");
+
+krb5_context context;
+static int help_flag;
+static int version_flag;
+static char *port_str;
+const char *service = KF_SERVICE;
+const char *remote_name = NULL;
+int forwardable = 0;
+const char *ccache_name = NULL;
+
+static struct getargs args[] = {
+ { "port", 'p', arg_string, &port_str, "port to connect to", "port" },
+ { "login", 'l',arg_string, &remote_name,"remote login name","login"},
+ { "ccache", 'c',arg_string, &ccache_name, "remote cred cache","ccache"},
+ { "forwardable",'F',arg_flag,&forwardable,
+ "Forward forwardable credentials", NULL },
+ { "forwardable",'G',arg_negative_flag,&forwardable,
+ "Don't forward forwardable credentials", NULL },
+ { "help", 'h', arg_flag, &help_flag, NULL, NULL },
+ { "version", 0, arg_flag, &version_flag, NULL, NULL }
+};
+
+static int num_args = sizeof(args) / sizeof(args[0]);
+
+static void
+usage(int code, struct getargs *inargs, int num_inargs)
+{
+ arg_printusage(inargs, num_inargs, NULL, "hosts");
+ exit(code);
+}
+
+static int
+client_setup(krb5_context *ctx, int *argc, char **argv)
+{
+ int optidx = 0;
+ int port = 0;
+ int status;
+
+ setprogname (argv[0]);
+
+ status = krb5_init_context (ctx);
+ if (status)
+ errx(1, "krb5_init_context failed: %d", status);
+
+ forwardable = krb5_config_get_bool (*ctx, NULL,
+ "libdefaults",
+ "forwardable",
+ NULL);
+
+ if (getarg (args, num_args, *argc, argv, &optidx))
+ usage(1, args, num_args);
+
+ if(help_flag)
+ usage (0, args, num_args);
+ if(version_flag) {
+ print_version(NULL);
+ exit(0);
+ }
+
+ if(port_str) {
+ struct servent *s = roken_getservbyname(port_str, "tcp");
+ if(s)
+ port = s->s_port;
+ else {
+ char *ptr;
+
+ port = strtol (port_str, &ptr, 10);
+ if (port == 0 && ptr == port_str)
+ errx (1, "Bad port `%s'", port_str);
+ port = htons(port);
+ }
+ }
+
+ if (port == 0)
+ port = krb5_getportbyname (*ctx, KF_PORT_NAME, "tcp", KF_PORT_NUM);
+
+ if(*argc - optidx < 1)
+ usage(1, args, num_args);
+ *argc = optidx;
+
+ return port;
+}
+
+/*
+ * forward creds to `hostname'/`service' over `sock'
+ * return 0 iff OK
+ */
+
+static int
+proto (int sock, const char *hostname, const char *svc,
+ char *message, size_t len)
+{
+ krb5_auth_context auth_context;
+ krb5_error_code status;
+ krb5_principal server;
+ krb5_data data;
+ krb5_data data_send;
+
+ krb5_ccache ccache;
+ krb5_creds creds;
+ krb5_kdc_flags flags;
+ krb5_principal principal;
+
+ status = krb5_auth_con_init (context, &auth_context);
+ if (status) {
+ krb5_warn (context, status, "krb5_auth_con_init");
+ return 1;
+ }
+
+ status = krb5_auth_con_setaddrs_from_fd (context,
+ auth_context,
+ &sock);
+ if (status) {
+ krb5_auth_con_free(context, auth_context);
+ krb5_warn (context, status, "krb5_auth_con_setaddr");
+ return 1;
+ }
+
+ status = krb5_sname_to_principal (context,
+ hostname,
+ svc,
+ KRB5_NT_SRV_HST,
+ &server);
+ if (status) {
+ krb5_auth_con_free(context, auth_context);
+ krb5_warn (context, status, "krb5_sname_to_principal");
+ return 1;
+ }
+
+ status = krb5_sendauth (context,
+ &auth_context,
+ &sock,
+ KF_VERSION_1,
+ NULL,
+ server,
+ AP_OPTS_MUTUAL_REQUIRED | AP_OPTS_USE_SUBKEY,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL);
+ if (status) {
+ krb5_auth_con_free(context, auth_context);
+ krb5_warn(context, status, "krb5_sendauth");
+ return 1;
+ }
+
+ if (ccache_name == NULL)
+ ccache_name = "";
+
+ data_send.data = (void *)remote_name;
+ data_send.length = strlen(remote_name) + 1;
+ status = krb5_write_priv_message(context, auth_context, &sock, &data_send);
+ if (status) {
+ krb5_auth_con_free(context, auth_context);
+ krb5_warn (context, status, "krb5_write_message");
+ return 1;
+ }
+ data_send.data = (void *)ccache_name;
+ data_send.length = strlen(ccache_name)+1;
+ status = krb5_write_priv_message(context, auth_context, &sock, &data_send);
+ if (status) {
+ krb5_auth_con_free(context, auth_context);
+ krb5_warn (context, status, "krb5_write_message");
+ return 1;
+ }
+
+ memset (&creds, 0, sizeof(creds));
+
+ status = krb5_cc_default (context, &ccache);
+ if (status) {
+ krb5_auth_con_free(context, auth_context);
+ krb5_warn (context, status, "krb5_cc_default");
+ return 1;
+ }
+
+ status = krb5_cc_get_principal (context, ccache, &principal);
+ if (status) {
+ krb5_auth_con_free(context, auth_context);
+ krb5_warn (context, status, "krb5_cc_get_principal");
+ return 1;
+ }
+
+ creds.client = principal;
+
+ status = krb5_make_principal (context,
+ &creds.server,
+ principal->realm,
+ KRB5_TGS_NAME,
+ principal->realm,
+ NULL);
+
+ if (status) {
+ krb5_auth_con_free(context, auth_context);
+ krb5_warn (context, status, "krb5_make_principal");
+ return 1;
+ }
+
+ creds.times.endtime = 0;
+
+ flags.i = 0;
+ flags.b.forwarded = 1;
+ flags.b.forwardable = forwardable;
+
+ status = krb5_get_forwarded_creds (context,
+ auth_context,
+ ccache,
+ flags.i,
+ hostname,
+ &creds,
+ &data);
+ if (status) {
+ krb5_auth_con_free(context, auth_context);
+ krb5_warn (context, status, "krb5_get_forwarded_creds");
+ return 1;
+ }
+
+ status = krb5_write_priv_message(context, auth_context, &sock, &data);
+
+ if (status) {
+ krb5_auth_con_free(context, auth_context);
+ krb5_warn (context, status, "krb5_mk_priv");
+ return 1;
+ }
+
+ krb5_data_free (&data);
+
+ status = krb5_read_priv_message(context, auth_context, &sock, &data);
+ krb5_auth_con_free(context, auth_context);
+ if (status) {
+ krb5_warn (context, status, "krb5_mk_priv");
+ return 1;
+ }
+ if(data.length >= len) {
+ krb5_warnx (context, "returned string is too long, truncating");
+ memcpy(message, data.data, len);
+ message[len - 1] = '\0';
+ } else {
+ memcpy(message, data.data, data.length);
+ message[data.length] = '\0';
+ }
+ krb5_data_free (&data);
+
+ return strcmp(message, "ok") != 0;
+}
+
+static int
+doit (const char *hostname, int port, const char *svc,
+ char *message, size_t len)
+{
+ struct addrinfo *ai, *a;
+ struct addrinfo hints;
+ int error;
+ char portstr[NI_MAXSERV];
+
+ memset (&hints, 0, sizeof(hints));
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_protocol = IPPROTO_TCP;
+
+ snprintf (portstr, sizeof(portstr), "%u", ntohs(port));
+
+ error = getaddrinfo (hostname, portstr, &hints, &ai);
+ if (error) {
+ errx (1, "getaddrinfo(%s): %s", hostname, gai_strerror(error));
+ }
+
+ for (a = ai; a != NULL; a = a->ai_next) {
+ int s;
+
+ s = socket (a->ai_family, a->ai_socktype, a->ai_protocol);
+ if (s < 0)
+ continue;
+ if (connect (s, a->ai_addr, a->ai_addrlen) < 0) {
+ warn ("connect(%s)", hostname);
+ close (s);
+ continue;
+ }
+ freeaddrinfo (ai);
+ error = proto(s, hostname, svc, message, len);
+ close(s);
+ return error;
+ }
+ warnx ("failed to contact %s", hostname);
+ freeaddrinfo (ai);
+ return 1;
+}
+
+int
+main(int argc, char **argv)
+{
+ char userbuf[128];
+ int argcc,port,i;
+ int ret=0;
+
+ argcc = argc;
+ port = client_setup(&context, &argcc, argv);
+
+ if (remote_name == NULL) {
+ remote_name = roken_get_username(userbuf, sizeof(userbuf));
+ if (remote_name == NULL)
+ errx (1, "who are you?");
+ }
+
+ for (i = argcc;i < argc; i++) {
+ char message[128];
+ ret = doit (argv[i], port, service, message, sizeof(message));
+ if(ret == 0)
+ warnx ("%s: ok", argv[i]);
+ else
+ warnx ("%s: failed: %s", argv[i], message);
+ }
+ return(ret);
+}
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