543 lines
15 KiB
C
543 lines
15 KiB
C
/*
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* Copyright (c) 2006 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of KTH nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "krb5/gsskrb5_locl.h"
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#include <err.h>
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#include <getarg.h>
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#include "test_common.h"
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RCSID("$Id: test_context.c 20075 2007-01-31 06:05:19Z lha $");
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static char *type_string;
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static char *mech_string;
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static char *ret_mech_string;
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static int dns_canon_flag = -1;
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static int mutual_auth_flag = 0;
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static int dce_style_flag = 0;
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static int wrapunwrap_flag = 0;
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static int getverifymic_flag = 0;
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static int deleg_flag = 0;
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static int version_flag = 0;
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static int verbose_flag = 0;
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static int help_flag = 0;
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static struct {
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const char *name;
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gss_OID *oid;
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} o2n[] = {
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{ "krb5", &GSS_KRB5_MECHANISM },
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{ "spnego", &GSS_SPNEGO_MECHANISM },
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{ "ntlm", &GSS_NTLM_MECHANISM },
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{ "sasl-digest-md5", &GSS_SASL_DIGEST_MD5_MECHANISM }
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};
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static gss_OID
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string_to_oid(const char *name)
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{
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int i;
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for (i = 0; i < sizeof(o2n)/sizeof(o2n[0]); i++)
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if (strcasecmp(name, o2n[i].name) == 0)
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return *o2n[i].oid;
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errx(1, "name %s not unknown", name);
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}
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static const char *
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oid_to_string(const gss_OID oid)
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{
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int i;
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for (i = 0; i < sizeof(o2n)/sizeof(o2n[0]); i++)
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if (gss_oid_equal(oid, *o2n[i].oid))
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return o2n[i].name;
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return "unknown oid";
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}
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static void
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loop(gss_OID mechoid,
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gss_OID nameoid, const char *target,
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gss_cred_id_t init_cred,
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gss_ctx_id_t *sctx, gss_ctx_id_t *cctx,
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gss_OID *actual_mech,
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gss_cred_id_t *deleg_cred)
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{
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int server_done = 0, client_done = 0;
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OM_uint32 maj_stat, min_stat;
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gss_name_t gss_target_name;
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gss_buffer_desc input_token, output_token;
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OM_uint32 flags = 0, ret_cflags, ret_sflags;
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gss_OID actual_mech_client;
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gss_OID actual_mech_server;
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*actual_mech = GSS_C_NO_OID;
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flags |= GSS_C_INTEG_FLAG;
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flags |= GSS_C_CONF_FLAG;
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if (mutual_auth_flag)
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flags |= GSS_C_MUTUAL_FLAG;
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if (dce_style_flag)
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flags |= GSS_C_DCE_STYLE;
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if (deleg_flag)
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flags |= GSS_C_DELEG_FLAG;
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input_token.value = rk_UNCONST(target);
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input_token.length = strlen(target);
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maj_stat = gss_import_name(&min_stat,
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&input_token,
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nameoid,
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&gss_target_name);
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if (GSS_ERROR(maj_stat))
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err(1, "import name creds failed with: %d", maj_stat);
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input_token.length = 0;
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input_token.value = NULL;
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while (!server_done || !client_done) {
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maj_stat = gss_init_sec_context(&min_stat,
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init_cred,
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cctx,
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gss_target_name,
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mechoid,
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flags,
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0,
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NULL,
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&input_token,
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&actual_mech_client,
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&output_token,
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&ret_cflags,
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NULL);
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if (GSS_ERROR(maj_stat))
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errx(1, "init_sec_context: %s",
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gssapi_err(maj_stat, min_stat, mechoid));
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if (maj_stat & GSS_S_CONTINUE_NEEDED)
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;
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else
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client_done = 1;
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if (client_done && server_done)
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break;
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if (input_token.length != 0)
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gss_release_buffer(&min_stat, &input_token);
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maj_stat = gss_accept_sec_context(&min_stat,
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sctx,
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GSS_C_NO_CREDENTIAL,
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&output_token,
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GSS_C_NO_CHANNEL_BINDINGS,
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NULL,
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&actual_mech_server,
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&input_token,
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&ret_sflags,
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NULL,
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deleg_cred);
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if (GSS_ERROR(maj_stat))
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errx(1, "accept_sec_context: %s",
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gssapi_err(maj_stat, min_stat, actual_mech_server));
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if (verbose_flag)
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printf("%.*s", (int)input_token.length, (char *)input_token.value);
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if (output_token.length != 0)
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gss_release_buffer(&min_stat, &output_token);
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if (maj_stat & GSS_S_CONTINUE_NEEDED)
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;
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else
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server_done = 1;
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}
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if (output_token.length != 0)
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gss_release_buffer(&min_stat, &output_token);
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if (input_token.length != 0)
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gss_release_buffer(&min_stat, &input_token);
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gss_release_name(&min_stat, &gss_target_name);
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if (gss_oid_equal(actual_mech_server, actual_mech_client) == 0)
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errx(1, "mech mismatch");
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*actual_mech = actual_mech_server;
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}
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static void
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wrapunwrap(gss_ctx_id_t cctx, gss_ctx_id_t sctx, gss_OID mechoid)
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{
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gss_buffer_desc input_token, output_token, output_token2;
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OM_uint32 min_stat, maj_stat;
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int32_t flags = 0;
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gss_qop_t qop_state;
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int conf_state;
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input_token.value = "foo";
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input_token.length = 3;
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maj_stat = gss_wrap(&min_stat, cctx, flags, 0, &input_token,
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&conf_state, &output_token);
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if (maj_stat != GSS_S_COMPLETE)
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errx(1, "gss_wrap failed: %s",
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gssapi_err(maj_stat, min_stat, mechoid));
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maj_stat = gss_unwrap(&min_stat, sctx, &output_token,
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&output_token2, &conf_state, &qop_state);
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if (maj_stat != GSS_S_COMPLETE)
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errx(1, "gss_unwrap failed: %s",
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gssapi_err(maj_stat, min_stat, mechoid));
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}
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static void
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getverifymic(gss_ctx_id_t cctx, gss_ctx_id_t sctx, gss_OID mechoid)
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{
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gss_buffer_desc input_token, output_token;
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OM_uint32 min_stat, maj_stat;
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gss_qop_t qop_state;
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input_token.value = "bar";
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input_token.length = 3;
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maj_stat = gss_get_mic(&min_stat, cctx, 0, &input_token,
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&output_token);
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if (maj_stat != GSS_S_COMPLETE)
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errx(1, "gss_get_mic failed: %s",
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gssapi_err(maj_stat, min_stat, mechoid));
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maj_stat = gss_verify_mic(&min_stat, sctx, &input_token,
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&output_token, &qop_state);
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if (maj_stat != GSS_S_COMPLETE)
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errx(1, "gss_verify_mic failed: %s",
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gssapi_err(maj_stat, min_stat, mechoid));
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}
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/*
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*
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*/
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static struct getargs args[] = {
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{"name-type",0, arg_string, &type_string, "type of name", NULL },
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{"mech-type",0, arg_string, &mech_string, "type of mech", NULL },
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{"ret-mech-type",0, arg_string, &ret_mech_string,
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"type of return mech", NULL },
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{"dns-canonicalize",0,arg_negative_flag, &dns_canon_flag,
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"use dns to canonicalize", NULL },
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{"mutual-auth",0, arg_flag, &mutual_auth_flag,"mutual auth", NULL },
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{"dce-style",0, arg_flag, &dce_style_flag, "dce-style", NULL },
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{"wrapunwrap",0, arg_flag, &wrapunwrap_flag, "wrap/unwrap", NULL },
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{"getverifymic",0, arg_flag, &getverifymic_flag,
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"get and verify mic", NULL },
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{"delegate",0, arg_flag, &deleg_flag, "delegate credential", NULL },
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{"version", 0, arg_flag, &version_flag, "print version", NULL },
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{"verbose", 'v', arg_flag, &verbose_flag, "verbose", NULL },
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{"help", 0, arg_flag, &help_flag, NULL, NULL }
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};
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static void
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usage (int ret)
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{
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arg_printusage (args, sizeof(args)/sizeof(*args),
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NULL, "service@host");
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exit (ret);
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}
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int
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main(int argc, char **argv)
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{
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int optind = 0;
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OM_uint32 min_stat, maj_stat;
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gss_ctx_id_t cctx, sctx;
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void *ctx;
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gss_OID nameoid, mechoid, actual_mech;
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gss_cred_id_t deleg_cred = GSS_C_NO_CREDENTIAL;
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setprogname(argv[0]);
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cctx = sctx = GSS_C_NO_CONTEXT;
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if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optind))
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usage(1);
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if (help_flag)
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usage (0);
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if(version_flag){
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print_version(NULL);
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exit(0);
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}
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argc -= optind;
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argv += optind;
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if (argc != 1)
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usage(1);
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if (dns_canon_flag != -1)
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gsskrb5_set_dns_canonicalize(dns_canon_flag);
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if (type_string == NULL)
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nameoid = GSS_C_NT_HOSTBASED_SERVICE;
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else if (strcmp(type_string, "hostbased-service") == 0)
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nameoid = GSS_C_NT_HOSTBASED_SERVICE;
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else if (strcmp(type_string, "krb5-principal-name") == 0)
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nameoid = GSS_KRB5_NT_PRINCIPAL_NAME;
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else
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errx(1, "%s not suppported", type_string);
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if (mech_string == NULL)
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mechoid = GSS_KRB5_MECHANISM;
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else
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mechoid = string_to_oid(mech_string);
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loop(mechoid, nameoid, argv[0], GSS_C_NO_CREDENTIAL,
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&sctx, &cctx, &actual_mech, &deleg_cred);
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if (verbose_flag)
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printf("resulting mech: %s\n", oid_to_string(actual_mech));
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if (ret_mech_string) {
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gss_OID retoid;
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retoid = string_to_oid(ret_mech_string);
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if (gss_oid_equal(retoid, actual_mech) == 0)
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errx(1, "actual_mech mech is not the expected type %s",
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ret_mech_string);
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}
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/* XXX should be actual_mech */
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if (gss_oid_equal(mechoid, GSS_KRB5_MECHANISM)) {
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krb5_context context;
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time_t time, skew;
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gss_buffer_desc authz_data;
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gss_buffer_desc in, out1, out2;
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krb5_keyblock *keyblock, *keyblock2;
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krb5_timestamp now;
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krb5_error_code ret;
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ret = krb5_init_context(&context);
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if (ret)
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errx(1, "krb5_init_context");
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ret = krb5_timeofday(context, &now);
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if (ret)
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errx(1, "krb5_timeofday failed");
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/* client */
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maj_stat = gss_krb5_export_lucid_sec_context(&min_stat,
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&cctx,
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1, /* version */
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&ctx);
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if (maj_stat != GSS_S_COMPLETE)
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errx(1, "gss_krb5_export_lucid_sec_context failed: %s",
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gssapi_err(maj_stat, min_stat, actual_mech));
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maj_stat = gss_krb5_free_lucid_sec_context(&maj_stat, ctx);
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if (maj_stat != GSS_S_COMPLETE)
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errx(1, "gss_krb5_free_lucid_sec_context failed: %s",
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gssapi_err(maj_stat, min_stat, actual_mech));
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/* server */
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maj_stat = gss_krb5_export_lucid_sec_context(&min_stat,
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&sctx,
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1, /* version */
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&ctx);
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if (maj_stat != GSS_S_COMPLETE)
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errx(1, "gss_krb5_export_lucid_sec_context failed: %s",
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gssapi_err(maj_stat, min_stat, actual_mech));
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maj_stat = gss_krb5_free_lucid_sec_context(&min_stat, ctx);
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if (maj_stat != GSS_S_COMPLETE)
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errx(1, "gss_krb5_free_lucid_sec_context failed: %s",
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gssapi_err(maj_stat, min_stat, actual_mech));
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maj_stat = gsskrb5_extract_authtime_from_sec_context(&min_stat,
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sctx,
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&time);
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if (maj_stat != GSS_S_COMPLETE)
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errx(1, "gsskrb5_extract_authtime_from_sec_context failed: %s",
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gssapi_err(maj_stat, min_stat, actual_mech));
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skew = abs(time - now);
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if (skew > krb5_get_max_time_skew(context)) {
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errx(1, "gsskrb5_extract_authtime_from_sec_context failed: "
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"time skew too great %llu > %llu",
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(unsigned long long)skew,
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(unsigned long long)krb5_get_max_time_skew(context));
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}
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maj_stat = gsskrb5_extract_service_keyblock(&min_stat,
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sctx,
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&keyblock);
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if (maj_stat != GSS_S_COMPLETE)
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errx(1, "gsskrb5_export_service_keyblock failed: %s",
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gssapi_err(maj_stat, min_stat, actual_mech));
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krb5_free_keyblock(context, keyblock);
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maj_stat = gsskrb5_get_subkey(&min_stat,
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sctx,
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&keyblock);
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if (maj_stat != GSS_S_COMPLETE
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&& (!(maj_stat == GSS_S_FAILURE && min_stat == GSS_KRB5_S_KG_NO_SUBKEY)))
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errx(1, "gsskrb5_get_subkey server failed: %s",
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gssapi_err(maj_stat, min_stat, actual_mech));
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if (maj_stat != GSS_S_COMPLETE)
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keyblock = NULL;
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maj_stat = gsskrb5_get_subkey(&min_stat,
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cctx,
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&keyblock2);
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if (maj_stat != GSS_S_COMPLETE
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&& (!(maj_stat == GSS_S_FAILURE && min_stat == GSS_KRB5_S_KG_NO_SUBKEY)))
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errx(1, "gsskrb5_get_subkey client failed: %s",
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gssapi_err(maj_stat, min_stat, actual_mech));
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if (maj_stat != GSS_S_COMPLETE)
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keyblock2 = NULL;
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if (keyblock || keyblock2) {
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if (keyblock == NULL)
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errx(1, "server missing token keyblock");
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if (keyblock2 == NULL)
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errx(1, "client missing token keyblock");
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if (keyblock->keytype != keyblock2->keytype)
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errx(1, "enctype mismatch");
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if (keyblock->keyvalue.length != keyblock2->keyvalue.length)
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errx(1, "key length mismatch");
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if (memcmp(keyblock->keyvalue.data, keyblock2->keyvalue.data,
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keyblock2->keyvalue.length) != 0)
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errx(1, "key data mismatch");
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}
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if (keyblock)
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krb5_free_keyblock(context, keyblock);
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if (keyblock2)
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krb5_free_keyblock(context, keyblock2);
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maj_stat = gsskrb5_get_initiator_subkey(&min_stat,
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sctx,
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&keyblock);
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if (maj_stat != GSS_S_COMPLETE
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&& (!(maj_stat == GSS_S_FAILURE && min_stat == GSS_KRB5_S_KG_NO_SUBKEY)))
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errx(1, "gsskrb5_get_initiator_subkey failed: %s",
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gssapi_err(maj_stat, min_stat, actual_mech));
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if (maj_stat == GSS_S_COMPLETE)
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krb5_free_keyblock(context, keyblock);
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maj_stat = gsskrb5_extract_authz_data_from_sec_context(&min_stat,
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sctx,
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|
128,
|
|
&authz_data);
|
|
if (maj_stat == GSS_S_COMPLETE)
|
|
gss_release_buffer(&min_stat, &authz_data);
|
|
|
|
krb5_free_context(context);
|
|
|
|
|
|
memset(&out1, 0, sizeof(out1));
|
|
memset(&out2, 0, sizeof(out2));
|
|
|
|
in.value = "foo";
|
|
in.length = 3;
|
|
|
|
gss_pseudo_random(&min_stat, sctx, GSS_C_PRF_KEY_FULL, &in,
|
|
100, &out1);
|
|
gss_pseudo_random(&min_stat, cctx, GSS_C_PRF_KEY_FULL, &in,
|
|
100, &out2);
|
|
|
|
if (out1.length != out2.length)
|
|
errx(1, "prf len mismatch");
|
|
if (memcmp(out1.value, out2.value, out1.length) != 0)
|
|
errx(1, "prf data mismatch");
|
|
|
|
gss_release_buffer(&min_stat, &out1);
|
|
|
|
gss_pseudo_random(&min_stat, sctx, GSS_C_PRF_KEY_FULL, &in,
|
|
100, &out1);
|
|
|
|
if (out1.length != out2.length)
|
|
errx(1, "prf len mismatch");
|
|
if (memcmp(out1.value, out2.value, out1.length) != 0)
|
|
errx(1, "prf data mismatch");
|
|
|
|
gss_release_buffer(&min_stat, &out1);
|
|
gss_release_buffer(&min_stat, &out2);
|
|
|
|
in.value = "bar";
|
|
in.length = 3;
|
|
|
|
gss_pseudo_random(&min_stat, sctx, GSS_C_PRF_KEY_PARTIAL, &in,
|
|
100, &out1);
|
|
gss_pseudo_random(&min_stat, cctx, GSS_C_PRF_KEY_PARTIAL, &in,
|
|
100, &out2);
|
|
|
|
if (out1.length != out2.length)
|
|
errx(1, "prf len mismatch");
|
|
if (memcmp(out1.value, out2.value, out1.length) != 0)
|
|
errx(1, "prf data mismatch");
|
|
|
|
gss_release_buffer(&min_stat, &out1);
|
|
gss_release_buffer(&min_stat, &out2);
|
|
|
|
wrapunwrap_flag = 1;
|
|
getverifymic_flag = 1;
|
|
}
|
|
|
|
if (wrapunwrap_flag) {
|
|
wrapunwrap(cctx, sctx, actual_mech);
|
|
wrapunwrap(cctx, sctx, actual_mech);
|
|
wrapunwrap(sctx, cctx, actual_mech);
|
|
wrapunwrap(sctx, cctx, actual_mech);
|
|
}
|
|
if (getverifymic_flag) {
|
|
getverifymic(cctx, sctx, actual_mech);
|
|
getverifymic(cctx, sctx, actual_mech);
|
|
getverifymic(sctx, cctx, actual_mech);
|
|
getverifymic(sctx, cctx, actual_mech);
|
|
}
|
|
|
|
gss_delete_sec_context(&min_stat, &cctx, NULL);
|
|
gss_delete_sec_context(&min_stat, &sctx, NULL);
|
|
|
|
if (deleg_cred != GSS_C_NO_CREDENTIAL) {
|
|
|
|
loop(mechoid, nameoid, argv[0], deleg_cred, &cctx, &sctx, &actual_mech, NULL);
|
|
|
|
gss_delete_sec_context(&min_stat, &cctx, NULL);
|
|
gss_delete_sec_context(&min_stat, &sctx, NULL);
|
|
|
|
}
|
|
|
|
return 0;
|
|
}
|