| 1 | /*
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| 2 | * Copyright (c) 1998 - 2001 Kungliga Tekniska Högskolan
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| 3 | * (Royal Institute of Technology, Stockholm, Sweden).
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | *
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| 10 | * 1. Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | *
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| 13 | * 2. Redistributions in binary form must reproduce the above copyright
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| 14 | * notice, this list of conditions and the following disclaimer in the
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| 15 | * documentation and/or other materials provided with the distribution.
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| 16 | *
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| 17 | * 3. Neither the name of the Institute nor the names of its contributors
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| 18 | * may be used to endorse or promote products derived from this software
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| 19 | * without specific prior written permission.
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| 20 | *
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 31 | * SUCH DAMAGE.
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| 32 | */
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| 33 |
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| 34 | #include "ftpd_locl.h"
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| 35 | #include <gssapi/gssapi.h>
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| 36 |
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| 37 | /* XXX sync with gssapi.c */
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| 38 | struct gssapi_data {
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| 39 | gss_ctx_id_t context_hdl;
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| 40 | gss_name_t client_name;
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| 41 | gss_cred_id_t delegated_cred_handle;
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| 42 | void *mech_data;
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| 43 | };
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| 44 |
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| 45 | int gssapi_userok(void*, char*); /* to keep gcc happy */
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| 46 | int gssapi_session(void*, char*); /* to keep gcc happy */
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| 47 |
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| 48 | int
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| 49 | gssapi_userok(void *app_data, char *username)
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| 50 | {
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| 51 | struct gssapi_data *data = app_data;
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| 52 |
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| 53 | /* Yes, this logic really is inverted. */
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| 54 | return !gss_userok(data->client_name, username);
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| 55 | }
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| 56 |
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| 57 | int
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| 58 | gssapi_session(void *app_data, char *username)
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| 59 | {
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| 60 | struct gssapi_data *data = app_data;
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| 61 | OM_uint32 major, minor;
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| 62 | int ret = 0;
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| 63 |
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| 64 | if (data->delegated_cred_handle != GSS_C_NO_CREDENTIAL) {
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| 65 | major = gss_store_cred(&minor, data->delegated_cred_handle,
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| 66 | GSS_C_INITIATE, GSS_C_NO_OID,
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| 67 | 1, 1, NULL, NULL);
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| 68 | if (GSS_ERROR(major))
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| 69 | ret = 1;
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| 70 | afslog(NULL, 1);
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| 71 | }
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| 72 |
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| 73 | gss_release_cred(&minor, &data->delegated_cred_handle);
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| 74 | return ret;
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| 75 | }
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