3e00ddf50d
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@9089 ec53bebd-3082-4978-b11e-865c3cabbd6b
119 lines
3.9 KiB
C
119 lines
3.9 KiB
C
/*
|
|
* Copyright (c) 1998 - 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 "ftpd_locl.h"
|
|
#include <gssapi.h>
|
|
#include <krb5.h>
|
|
|
|
RCSID("$Id$");
|
|
|
|
/* XXX a bit too much of krb5 dependency here...
|
|
What is the correct way to do this?
|
|
*/
|
|
|
|
extern krb5_context gssapi_krb5_context;
|
|
|
|
/* XXX sync with gssapi.c */
|
|
struct gss_data {
|
|
gss_ctx_id_t context_hdl;
|
|
char *client_name;
|
|
gss_cred_id_t delegated_cred_handle;
|
|
};
|
|
|
|
int gss_userok(void*, char*); /* to keep gcc happy */
|
|
|
|
int
|
|
gss_userok(void *app_data, char *username)
|
|
{
|
|
struct gss_data *data = app_data;
|
|
if(gssapi_krb5_context) {
|
|
krb5_principal client;
|
|
krb5_error_code ret;
|
|
|
|
ret = krb5_parse_name(gssapi_krb5_context, data->client_name, &client);
|
|
if(ret)
|
|
return 1;
|
|
ret = krb5_kuserok(gssapi_krb5_context, client, username);
|
|
if (!ret) {
|
|
krb5_free_principal(gssapi_krb5_context, client);
|
|
return 1;
|
|
}
|
|
|
|
ret = 0;
|
|
|
|
/* more of krb-depend stuff :-( */
|
|
/* gss_add_cred() ? */
|
|
if (data->delegated_cred_handle &&
|
|
data->delegated_cred_handle->ccache ) {
|
|
|
|
krb5_ccache ccache = NULL;
|
|
char* ticketfile;
|
|
struct passwd *pw;
|
|
|
|
pw = getpwnam(username);
|
|
|
|
asprintf (&ticketfile, "%s%u", KRB5_DEFAULT_CCROOT, pw->pw_uid);
|
|
|
|
ret = krb5_cc_resolve(gssapi_krb5_context, ticketfile, &ccache);
|
|
if (ret)
|
|
goto fail;
|
|
|
|
ret = krb5_cc_copy_cache(gssapi_krb5_context,
|
|
data->delegated_cred_handle->ccache, ccache);
|
|
if (ret)
|
|
goto fail;
|
|
|
|
chown (ticketfile+5, pw->pw_uid, pw->pw_gid);
|
|
|
|
#ifdef KRB4
|
|
if (k_hasafs()) {
|
|
krb5_afslog(gssapi_krb5_context, ccache, 0, 0);
|
|
}
|
|
#endif
|
|
esetenv ("KRB5CCNAME", ticketfile, 1);
|
|
|
|
fail:
|
|
if (ccache)
|
|
krb5_cc_close(gssapi_krb5_context, ccache);
|
|
krb5_cc_destroy(gssapi_krb5_context,
|
|
data->delegated_cred_handle->ccache);
|
|
data->delegated_cred_handle->ccache = NULL;
|
|
free(ticketfile);
|
|
}
|
|
|
|
krb5_free_principal(gssapi_krb5_context, client);
|
|
return ret;
|
|
}
|
|
return 1;
|
|
}
|