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/*
* Copyright (c) 1997 - 2000 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 "test_locl.h"
#include <gssapi/gssapi.h>
#include <gssapi/gssapi_krb5.h>
#include <gssapi/gssapi_spnego.h>
#include "gss_common.h"
RCSID("$Id$");
static int
do_trans (int sock, gss_ctx_id_t context_hdl)
{
OM_uint32 maj_stat, min_stat;
gss_buffer_desc real_input_token, real_output_token;
gss_buffer_t input_token = &real_input_token,
output_token = &real_output_token;
int conf_flag;
/* get_mic */
input_token->length = 3;
input_token->value = strdup("hej");
maj_stat = gss_get_mic(&min_stat,
context_hdl,
GSS_C_QOP_DEFAULT,
input_token,
output_token);
if (GSS_ERROR(maj_stat))
gss_err (1, min_stat, "gss_get_mic");
write_token (sock, input_token);
write_token (sock, output_token);
gss_release_buffer(&min_stat, output_token);
/* verify mic */
read_token (sock, input_token);
read_token (sock, output_token);
maj_stat = gss_verify_mic(&min_stat,
context_hdl,
input_token,
output_token,
NULL);
if (GSS_ERROR(maj_stat))
gss_err (1, min_stat, "gss_verify_mic");
gss_release_buffer (&min_stat, input_token);
gss_release_buffer (&min_stat, output_token);
/* wrap */
input_token->length = 7;
input_token->value = "hemligt";
maj_stat = gss_wrap (&min_stat,
context_hdl,
0,
GSS_C_QOP_DEFAULT,
input_token,
NULL,
output_token);
if (GSS_ERROR(maj_stat))
gss_err (1, min_stat, "gss_wrap");
write_token (sock, output_token);
maj_stat = gss_wrap (&min_stat,
context_hdl,
1,
GSS_C_QOP_DEFAULT,
input_token,
NULL,
output_token);
if (GSS_ERROR(maj_stat))
gss_err (1, min_stat, "gss_wrap");
write_token (sock, output_token);
read_token (sock, input_token);
maj_stat = gss_unwrap (&min_stat,
context_hdl,
input_token,
output_token,
&conf_flag,
NULL);
if(GSS_ERROR(maj_stat))
gss_err (1, min_stat, "gss_unwrap");
write_token (sock, output_token);
gss_release_buffer(&min_stat, output_token);
return 0;
}
extern char *password;
static int
proto (int sock, const char *hostname, const char *service)
{
struct sockaddr_storage remote, local;
socklen_t addrlen;
int context_established = 0;
gss_ctx_id_t context_hdl = GSS_C_NO_CONTEXT;
gss_cred_id_t cred = GSS_C_NO_CREDENTIAL;
gss_buffer_desc real_input_token, real_output_token;
gss_buffer_t input_token = &real_input_token,
output_token = &real_output_token;
OM_uint32 maj_stat, min_stat;
gss_name_t server;
gss_buffer_desc name_token;
gss_OID mech_oid;
char *str;
mech_oid = select_mech(mech);
name_token.length = asprintf (&str,
"%s@%s", service, hostname);
if (str == NULL)
errx(1, "malloc - out of memory");
name_token.value = str;
maj_stat = gss_import_name (&min_stat,
&name_token,
GSS_C_NT_HOSTBASED_SERVICE,
&server);
if (GSS_ERROR(maj_stat))
gss_err (1, min_stat,
"Error importing name `%s@%s':\n", service, hostname);
if (password) {
gss_buffer_desc pw;
pw.value = password;
pw.length = strlen(password);
maj_stat = gss_acquire_cred_with_password(&min_stat,
GSS_C_NO_NAME,
&pw,
GSS_C_INDEFINITE,
GSS_C_NO_OID_SET,
GSS_C_INITIATE,
&cred,
NULL,
NULL);
if (GSS_ERROR(maj_stat))
gss_err (1, min_stat,
"Error acquiring default initiator credentials");
}
addrlen = sizeof(local);
if (getsockname (sock, (struct sockaddr *)&local, &addrlen) < 0
|| addrlen > sizeof(local))
err (1, "getsockname(%s)", hostname);
addrlen = sizeof(remote);
if (getpeername (sock, (struct sockaddr *)&remote, &addrlen) < 0
|| addrlen > sizeof(remote))
err (1, "getpeername(%s)", hostname);
input_token->length = 0;
output_token->length = 0;
#if 0
struct gss_channel_bindings_struct input_chan_bindings;
u_char init_buf[4];
u_char acct_buf[4];
input_chan_bindings.initiator_addrtype = GSS_C_AF_INET;
input_chan_bindings.initiator_address.length = 4;
init_buf[0] = (local.sin_addr.s_addr >> 24) & 0xFF;
init_buf[1] = (local.sin_addr.s_addr >> 16) & 0xFF;
init_buf[2] = (local.sin_addr.s_addr >> 8) & 0xFF;
init_buf[3] = (local.sin_addr.s_addr >> 0) & 0xFF;
input_chan_bindings.initiator_address.value = init_buf;
input_chan_bindings.acceptor_addrtype = GSS_C_AF_INET;
input_chan_bindings.acceptor_address.length = 4;
acct_buf[0] = (remote.sin_addr.s_addr >> 24) & 0xFF;
acct_buf[1] = (remote.sin_addr.s_addr >> 16) & 0xFF;
acct_buf[2] = (remote.sin_addr.s_addr >> 8) & 0xFF;
acct_buf[3] = (remote.sin_addr.s_addr >> 0) & 0xFF;
input_chan_bindings.acceptor_address.value = acct_buf;
input_chan_bindings.application_data.value = emalloc(4);
* (unsigned short*)input_chan_bindings.application_data.value = local.sin_port;
* ((unsigned short *)input_chan_bindings.application_data.value + 1) = remote.sin_port;
input_chan_bindings.application_data.length = 4;
input_chan_bindings.application_data.length = 0;
input_chan_bindings.application_data.value = NULL;
#endif
while(!context_established) {
maj_stat =
gss_init_sec_context(&min_stat,
cred,
&context_hdl,
server,
mech_oid,
GSS_C_MUTUAL_FLAG | GSS_C_SEQUENCE_FLAG,
0,
NULL,
input_token,
NULL,
output_token,
NULL,
NULL);
if (GSS_ERROR(maj_stat))
gss_err (1, min_stat, "gss_init_sec_context");
if (output_token->length != 0)
write_token (sock, output_token);
if (GSS_ERROR(maj_stat)) {
if (context_hdl != GSS_C_NO_CONTEXT)
gss_delete_sec_context (&min_stat,
&context_hdl,
GSS_C_NO_BUFFER);
break;
}
if (maj_stat & GSS_S_CONTINUE_NEEDED) {
read_token (sock, input_token);
} else {
context_established = 1;
}
}
if (fork_flag) {
pid_t pid;
int pipefd[2];
if (pipe (pipefd) < 0)
err (1, "pipe");
pid = fork ();
if (pid < 0)
err (1, "fork");
if (pid != 0) {
gss_buffer_desc buf;
maj_stat = gss_export_sec_context (&min_stat,
&context_hdl,
&buf);
if (GSS_ERROR(maj_stat))
gss_err (1, min_stat, "gss_export_sec_context");
write_token (pipefd[1], &buf);
exit (0);
} else {
gss_ctx_id_t context_hdl;
gss_buffer_desc buf;
close (pipefd[1]);
read_token (pipefd[0], &buf);
close (pipefd[0]);
maj_stat = gss_import_sec_context (&min_stat, &buf, &context_hdl);
if (GSS_ERROR(maj_stat))
gss_err (1, min_stat, "gss_import_sec_context");
gss_release_buffer (&min_stat, &buf);
return do_trans (sock, context_hdl);
}
} else {
return do_trans (sock, context_hdl);
}
}
int
main(int argc, char **argv)
{
krb5_context context; /* XXX */
int port = client_setup(&context, &argc, argv);
return client_doit (argv[argc], port, service, proto);
}
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