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365 lines
10 KiB
C
365 lines
10 KiB
C
/* $NetBSD: auth.h,v 1.15 2000/06/02 22:57:55 fvdl Exp $ */
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/*-
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* Copyright (c) 2009, Sun Microsystems, Inc.
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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 are met:
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of Sun Microsystems, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND 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 THE COPYRIGHT HOLDER OR 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 BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* from: @(#)auth.h 1.17 88/02/08 SMI
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* from: @(#)auth.h 2.3 88/08/07 4.0 RPCSRC
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* from: @(#)auth.h 1.43 98/02/02 SMI
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* $FreeBSD$
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*/
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/*
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* auth.h, Authentication interface.
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*
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* Copyright (C) 1984, Sun Microsystems, Inc.
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*
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* The data structures are completely opaque to the client. The client
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* is required to pass an AUTH * to routines that create rpc
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* "sessions".
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*/
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#ifndef _RPC_AUTH_H
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#define _RPC_AUTH_H
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#include <rpc/xdr.h>
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#include <rpc/clnt_stat.h>
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#include <sys/cdefs.h>
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#include <sys/socket.h>
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#define MAX_AUTH_BYTES 400
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#define MAXNETNAMELEN 255 /* maximum length of network user's name */
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/*
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* Client side authentication/security data
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*/
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typedef struct sec_data {
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u_int secmod; /* security mode number e.g. in nfssec.conf */
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u_int rpcflavor; /* rpc flavors:AUTH_UNIX,AUTH_DES,RPCSEC_GSS */
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int flags; /* AUTH_F_xxx flags */
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caddr_t data; /* opaque data per flavor */
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} sec_data_t;
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#ifdef _SYSCALL32_IMPL
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struct sec_data32 {
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uint32_t secmod; /* security mode number e.g. in nfssec.conf */
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uint32_t rpcflavor; /* rpc flavors:AUTH_UNIX,AUTH_DES,RPCSEC_GSS */
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int32_t flags; /* AUTH_F_xxx flags */
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caddr32_t data; /* opaque data per flavor */
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};
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#endif /* _SYSCALL32_IMPL */
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/*
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* AUTH_DES flavor specific data from sec_data opaque data field.
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* AUTH_KERB has the same structure.
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*/
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typedef struct des_clnt_data {
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struct netbuf syncaddr; /* time sync addr */
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struct knetconfig *knconf; /* knetconfig info that associated */
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/* with the syncaddr. */
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char *netname; /* server's netname */
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int netnamelen; /* server's netname len */
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} dh_k4_clntdata_t;
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#ifdef _SYSCALL32_IMPL
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struct des_clnt_data32 {
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struct netbuf32 syncaddr; /* time sync addr */
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caddr32_t knconf; /* knetconfig info that associated */
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/* with the syncaddr. */
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caddr32_t netname; /* server's netname */
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int32_t netnamelen; /* server's netname len */
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};
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#endif /* _SYSCALL32_IMPL */
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#ifdef KERBEROS
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/*
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* flavor specific data to hold the data for AUTH_DES/AUTH_KERB(v4)
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* in sec_data->data opaque field.
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*/
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typedef struct krb4_svc_data {
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int window; /* window option value */
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} krb4_svcdata_t;
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typedef struct krb4_svc_data des_svcdata_t;
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#endif /* KERBEROS */
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/*
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* authentication/security specific flags
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*/
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#define AUTH_F_RPCTIMESYNC 0x001 /* use RPC to do time sync */
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#define AUTH_F_TRYNONE 0x002 /* allow fall back to AUTH_NONE */
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/*
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* Status returned from authentication check
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*/
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enum auth_stat {
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AUTH_OK=0,
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/*
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* failed at remote end
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*/
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AUTH_BADCRED=1, /* bogus credentials (seal broken) */
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AUTH_REJECTEDCRED=2, /* client should begin new session */
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AUTH_BADVERF=3, /* bogus verifier (seal broken) */
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AUTH_REJECTEDVERF=4, /* verifier expired or was replayed */
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AUTH_TOOWEAK=5, /* rejected due to security reasons */
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/*
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* failed locally
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*/
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AUTH_INVALIDRESP=6, /* bogus response verifier */
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AUTH_FAILED=7, /* some unknown reason */
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#ifdef KERBEROS
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/*
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* kerberos errors
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*/
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,
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AUTH_KERB_GENERIC = 8, /* kerberos generic error */
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AUTH_TIMEEXPIRE = 9, /* time of credential expired */
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AUTH_TKT_FILE = 10, /* something wrong with ticket file */
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AUTH_DECODE = 11, /* can't decode authenticator */
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AUTH_NET_ADDR = 12, /* wrong net address in ticket */
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#endif /* KERBEROS */
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/*
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* RPCSEC_GSS errors
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*/
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RPCSEC_GSS_CREDPROBLEM = 13,
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RPCSEC_GSS_CTXPROBLEM = 14,
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RPCSEC_GSS_NODISPATCH = 0x8000000
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};
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union des_block {
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struct {
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uint32_t high;
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uint32_t low;
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} key;
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char c[8];
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};
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typedef union des_block des_block;
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__BEGIN_DECLS
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extern bool_t xdr_des_block(XDR *, des_block *);
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__END_DECLS
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/*
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* Authentication info. Opaque to client.
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*/
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struct opaque_auth {
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enum_t oa_flavor; /* flavor of auth */
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caddr_t oa_base; /* address of more auth stuff */
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u_int oa_length; /* not to exceed MAX_AUTH_BYTES */
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};
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/*
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* Auth handle, interface to client side authenticators.
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*/
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struct rpc_err;
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typedef struct __auth {
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struct opaque_auth ah_cred;
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struct opaque_auth ah_verf;
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union des_block ah_key;
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struct auth_ops {
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void (*ah_nextverf) (struct __auth *);
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/* nextverf & serialize */
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int (*ah_marshal) (struct __auth *, uint32_t, XDR *,
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struct mbuf *);
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/* validate verifier */
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int (*ah_validate) (struct __auth *, uint32_t,
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struct opaque_auth *, struct mbuf **);
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/* refresh credentials */
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int (*ah_refresh) (struct __auth *, void *);
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/* destroy this structure */
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void (*ah_destroy) (struct __auth *);
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} *ah_ops;
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void *ah_private;
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} AUTH;
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/*
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* Authentication ops.
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* The ops and the auth handle provide the interface to the authenticators.
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*
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* AUTH *auth;
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* XDR *xdrs;
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* struct opaque_auth verf;
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*/
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#define AUTH_NEXTVERF(auth) \
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((*((auth)->ah_ops->ah_nextverf))(auth))
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#define AUTH_MARSHALL(auth, xid, xdrs, args) \
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((*((auth)->ah_ops->ah_marshal))(auth, xid, xdrs, args))
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#define AUTH_VALIDATE(auth, xid, verfp, resultsp) \
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((*((auth)->ah_ops->ah_validate))((auth), xid, verfp, resultsp))
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#define AUTH_REFRESH(auth, msg) \
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((*((auth)->ah_ops->ah_refresh))(auth, msg))
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#define AUTH_DESTROY(auth) \
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((*((auth)->ah_ops->ah_destroy))(auth))
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__BEGIN_DECLS
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extern struct opaque_auth _null_auth;
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__END_DECLS
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/*
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* These are the various implementations of client side authenticators.
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*/
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/*
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* System style authentication
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* AUTH *authunix_create(machname, uid, gid, len, aup_gids)
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* char *machname;
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* u_int uid;
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* u_int gid;
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* int len;
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* u_int *aup_gids;
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*/
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__BEGIN_DECLS
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#ifdef _KERNEL
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struct ucred;
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extern AUTH *authunix_create(struct ucred *);
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#else
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extern AUTH *authunix_create(char *, u_int, u_int, int, u_int *);
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extern AUTH *authunix_create_default(void); /* takes no parameters */
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#endif
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extern AUTH *authnone_create(void); /* takes no parameters */
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__END_DECLS
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/*
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* DES style authentication
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* AUTH *authsecdes_create(servername, window, timehost, ckey)
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* char *servername; - network name of server
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* u_int window; - time to live
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* const char *timehost; - optional hostname to sync with
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* des_block *ckey; - optional conversation key to use
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*/
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__BEGIN_DECLS
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extern AUTH *authdes_create (char *, u_int, struct sockaddr *, des_block *);
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extern AUTH *authdes_seccreate (const char *, const u_int, const char *,
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const des_block *);
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__END_DECLS
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__BEGIN_DECLS
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extern bool_t xdr_opaque_auth (XDR *, struct opaque_auth *);
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__END_DECLS
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#define authsys_create(c,i1,i2,i3,ip) authunix_create((c),(i1),(i2),(i3),(ip))
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#define authsys_create_default() authunix_create_default()
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/*
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* Netname manipulation routines.
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*/
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__BEGIN_DECLS
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extern int getnetname(char *);
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extern int host2netname(char *, const char *, const char *);
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extern int user2netname(char *, const uid_t, const char *);
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extern int netname2user(char *, uid_t *, gid_t *, int *, gid_t *);
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extern int netname2host(char *, char *, const int);
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extern void passwd2des ( char *, char * );
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__END_DECLS
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/*
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*
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* These routines interface to the keyserv daemon
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*
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*/
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__BEGIN_DECLS
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extern int key_decryptsession(const char *, des_block *);
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extern int key_encryptsession(const char *, des_block *);
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extern int key_gendes(des_block *);
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extern int key_setsecret(const char *);
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extern int key_secretkey_is_set(void);
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__END_DECLS
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/*
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* Publickey routines.
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*/
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__BEGIN_DECLS
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extern int getpublickey (const char *, char *);
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extern int getpublicandprivatekey (const char *, char *);
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extern int getsecretkey (char *, char *, char *);
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__END_DECLS
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#ifdef KERBEROS
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/*
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* Kerberos style authentication
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* AUTH *authkerb_seccreate(service, srv_inst, realm, window, timehost, status)
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* const char *service; - service name
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* const char *srv_inst; - server instance
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* const char *realm; - server realm
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* const u_int window; - time to live
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* const char *timehost; - optional hostname to sync with
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* int *status; - kerberos status returned
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*/
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__BEGIN_DECLS
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extern AUTH *authkerb_seccreate(const char *, const char *, const char *,
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const u_int, const char *, int *);
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__END_DECLS
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/*
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* Map a kerberos credential into a unix cred.
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*
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* authkerb_getucred(rqst, uid, gid, grouplen, groups)
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* const struct svc_req *rqst; - request pointer
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* uid_t *uid;
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* gid_t *gid;
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* short *grouplen;
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* int *groups;
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*
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*/
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__BEGIN_DECLS
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extern int authkerb_getucred(/* struct svc_req *, uid_t *, gid_t *,
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short *, int * */);
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__END_DECLS
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#endif /* KERBEROS */
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__BEGIN_DECLS
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struct svc_req;
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struct rpc_msg;
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enum auth_stat _svcauth_null (struct svc_req *, struct rpc_msg *);
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enum auth_stat _svcauth_short (struct svc_req *, struct rpc_msg *);
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enum auth_stat _svcauth_unix (struct svc_req *, struct rpc_msg *);
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__END_DECLS
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#define AUTH_NONE 0 /* no authentication */
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#define AUTH_NULL 0 /* backward compatibility */
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#define AUTH_SYS 1 /* unix style (uid, gids) */
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#define AUTH_UNIX AUTH_SYS
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#define AUTH_SHORT 2 /* short hand unix style */
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#define AUTH_DH 3 /* for Diffie-Hellman mechanism */
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#define AUTH_DES AUTH_DH /* for backward compatibility */
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#define AUTH_KERB 4 /* kerberos style */
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#define RPCSEC_GSS 6 /* RPCSEC_GSS */
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/*
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* Pseudo auth flavors for RPCSEC_GSS.
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*/
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#define RPCSEC_GSS_KRB5 390003
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#define RPCSEC_GSS_KRB5I 390004
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#define RPCSEC_GSS_KRB5P 390005
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#endif /* !_RPC_AUTH_H */
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