2 * Copyright (c) 1998 - 2001 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include "ftpd_locl.h"
38 RCSID("$Id: gss_userok.c 21222 2007-06-20 10:11:14Z lha $");
40 /* XXX a bit too much of krb5 dependency here...
41 What is the correct way to do this?
44 struct gss_krb5_data {
48 /* XXX sync with gssapi.c */
50 gss_ctx_id_t context_hdl;
52 gss_cred_id_t delegated_cred_handle;
56 int gss_userok(void*, char*); /* to keep gcc happy */
57 int gss_session(void*, char*); /* to keep gcc happy */
60 gss_userok(void *app_data, char *username)
62 struct gss_data *data = app_data;
64 krb5_principal client;
65 struct gss_krb5_data *kdata;
67 kdata = calloc(1, sizeof(struct gss_krb5_data));
70 data->mech_data = kdata;
72 ret = krb5_init_context(&(kdata->context));
78 ret = krb5_parse_name(kdata->context, data->client_name, &client);
80 krb5_free_context(kdata->context);
84 ret = krb5_kuserok(kdata->context, client, username);
86 krb5_free_principal(kdata->context, client);
87 krb5_free_context(kdata->context);
93 krb5_free_principal(kdata->context, client);
98 gss_session(void *app_data, char *username)
100 struct gss_data *data = app_data;
102 OM_uint32 minor_status;
103 struct gss_krb5_data *kdata;
107 kdata = (struct gss_krb5_data *)(data->mech_data);
109 /* more of krb-depend stuff :-( */
110 /* gss_add_cred() ? */
111 if (data->delegated_cred_handle != GSS_C_NO_CREDENTIAL) {
112 krb5_ccache ccache = NULL;
113 const char* ticketfile;
116 ret = krb5_cc_gen_new(kdata->context, &krb5_fcc_ops, &ccache);
120 ticketfile = krb5_cc_get_name(kdata->context, ccache);
122 ret = gss_krb5_copy_ccache(&minor_status,
123 data->delegated_cred_handle,
130 do_destroy_tickets = 1;
132 kpw = getpwnam(username);
140 chown (ticketfile, kpw->pw_uid, kpw->pw_gid);
142 if (asprintf(&k5ccname, "FILE:%s", ticketfile) != -1) {
143 esetenv ("KRB5CCNAME", k5ccname, 1);
148 krb5_cc_close(kdata->context, ccache);
151 gss_release_cred(&minor_status, &data->delegated_cred_handle);
152 krb5_free_context(kdata->context);