51251b2b3b
This version supports both the keyserv v1 and v2 protocols. It uses the new AF_LOCAL transport so that only local processes can use it for storing/retrieving keys, and it uses the SCM_CREDS kernel hack for authentication. With these two modifications, we don't need the keyenvoy program normally used with RPC 4.0. Note that if libdes.so.3.x is present on the system when keyserv is started, Secure RPC will run with normal DES encryption. If not, everything falls back to RC4 with a 40 bit key.
78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
/*
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* Copyright (c) 1996
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* Bill Paul <wpaul@ctr.columbia.edu>. 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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* 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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* 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: keyserv_uid.c,v 1.13 1997/01/19 20:23:05 wpaul Exp $
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <string.h>
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#include <rpc/key_prot.h>
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#include <rpc/des.h>
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#include <signal.h>
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#include <sys/socket.h>
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#include <sys/param.h>
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#include <unistd.h>
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#include "keyserv.h"
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#ifndef lint
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static const char rcsid[] = "$Id: keyserv_uid.c,v 1.13 1997/01/19 20:23:05 wpaul Exp $";
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#endif
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/*
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* XXX should be declared somewhere
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*/
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struct cmessage {
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struct cmsghdr cmsg;
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struct cmsgcred cmcred;
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};
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int
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__rpc_get_local_uid(uid, transp)
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uid_t *uid;
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SVCXPRT *transp;
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{
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struct cmessage *cm;
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if (transp->xp_verf.oa_length < sizeof(struct cmessage) ||
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transp->xp_verf.oa_base == NULL ||
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transp->xp_verf.oa_flavor != AUTH_UNIX)
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return(-1);
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cm = (struct cmessage *)transp->xp_verf.oa_base;
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if (cm->cmsg.cmsg_type != SCM_CREDS)
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return(-1);
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*uid = cm->cmcred.cmcred_euid;
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return(0);
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}
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