From f15aa3a552022743398a652165d76bf912c715e5 Mon Sep 17 00:00:00 2001 From: Guillaume Cottenceau Date: Mon, 14 May 2001 13:47:49 +0000 Subject: Initial revision --- mdk-stage1/dietlibc/librpc/svc_auth_unix.c | 136 +++++++++++++++++++++++++++++ 1 file changed, 136 insertions(+) create mode 100644 mdk-stage1/dietlibc/librpc/svc_auth_unix.c (limited to 'mdk-stage1/dietlibc/librpc/svc_auth_unix.c') diff --git a/mdk-stage1/dietlibc/librpc/svc_auth_unix.c b/mdk-stage1/dietlibc/librpc/svc_auth_unix.c new file mode 100644 index 000000000..7e0305f0a --- /dev/null +++ b/mdk-stage1/dietlibc/librpc/svc_auth_unix.c @@ -0,0 +1,136 @@ +/* @(#)svc_auth_unix.c 2.3 88/08/01 4.0 RPCSRC; from 1.28 88/02/08 SMI */ +/* + * Sun RPC is a product of Sun Microsystems, Inc. and is provided for + * unrestricted use provided that this legend is included on all tape + * media and as a part of the software program in whole or part. Users + * may copy or modify Sun RPC without charge, but are not authorized + * to license or distribute it to anyone else except as part of a product or + * program developed by the user. + * + * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE + * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR + * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. + * + * Sun RPC is provided with no support and without any obligation on the + * part of Sun Microsystems, Inc. to assist in its use, correction, + * modification or enhancement. + * + * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE + * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC + * OR ANY PART THEREOF. + * + * In no event will Sun Microsystems, Inc. be liable for any lost revenue + * or profits or other special, indirect and consequential damages, even if + * Sun has been advised of the possibility of such damages. + * + * Sun Microsystems, Inc. + * 2550 Garcia Avenue + * Mountain View, California 94043 + */ +#if !defined(lint) && defined(SCCSIDS) +static char sccsid[] = + + "@(#)svc_auth_unix.c 1.28 88/02/08 Copyr 1984 Sun Micro"; +#endif + +/* + * svc_auth_unix.c + * Handles UNIX flavor authentication parameters on the service side of rpc. + * There are two svc auth implementations here: AUTH_UNIX and AUTH_SHORT. + * _svcauth_unix does full blown unix style uid,gid+gids auth, + * _svcauth_short uses a shorthand auth to index into a cache of longhand auths. + * Note: the shorthand has been gutted for efficiency. + * + * Copyright (C) 1984, Sun Microsystems, Inc. + */ + +#include +#include +#include + +/* + * Unix longhand authenticator + */ +enum auth_stat _svcauth_unix(rqst, msg) +register struct svc_req *rqst; +register struct rpc_msg *msg; +{ + register enum auth_stat stat; + XDR xdrs; + register struct authunix_parms *aup; + register int32_t *buf; + struct area { + struct authunix_parms area_aup; + char area_machname[MAX_MACHINE_NAME + 1]; + gid_t area_gids[NGRPS]; + } *area; + u_int auth_len; + int str_len, gid_len; + register int i; + + area = (struct area *) rqst->rq_clntcred; + aup = &area->area_aup; + aup->aup_machname = area->area_machname; + aup->aup_gids = area->area_gids; + auth_len = (u_int) msg->rm_call.cb_cred.oa_length; + xdrmem_create(&xdrs, msg->rm_call.cb_cred.oa_base, auth_len, + XDR_DECODE); + buf = XDR_INLINE(&xdrs, auth_len); + if (buf != NULL) { + aup->aup_time = IXDR_GET_LONG(buf); + str_len = IXDR_GET_U_LONG(buf); + if (str_len > MAX_MACHINE_NAME) { + stat = AUTH_BADCRED; + goto done; + } + bcopy((caddr_t) buf, aup->aup_machname, (u_int) str_len); + aup->aup_machname[str_len] = 0; + str_len = RNDUP(str_len); + buf += str_len / sizeof(long); + + aup->aup_uid = IXDR_GET_LONG(buf); + aup->aup_gid = IXDR_GET_LONG(buf); + gid_len = IXDR_GET_U_LONG(buf); + if (gid_len > NGRPS) { + stat = AUTH_BADCRED; + goto done; + } + aup->aup_len = gid_len; + for (i = 0; i < gid_len; i++) { + aup->aup_gids[i] = IXDR_GET_LONG(buf); + } + /* + * five is the smallest unix credentials structure - + * timestamp, hostname len (0), uid, gid, and gids len (0). + */ + if ((5 + gid_len) * BYTES_PER_XDR_UNIT + str_len > auth_len) { + (void) printf("bad auth_len gid %d str %d auth %d\n", + gid_len, str_len, auth_len); + stat = AUTH_BADCRED; + goto done; + } + } else if (!xdr_authunix_parms(&xdrs, aup)) { + xdrs.x_op = XDR_FREE; + (void) xdr_authunix_parms(&xdrs, aup); + stat = AUTH_BADCRED; + goto done; + } + rqst->rq_xprt->xp_verf.oa_flavor = AUTH_NULL; + rqst->rq_xprt->xp_verf.oa_length = 0; + stat = AUTH_OK; + done: + XDR_DESTROY(&xdrs); + return (stat); +} + + +/* + * Shorthand unix authenticator + * Looks up longhand in a cache. + */ + /*ARGSUSED*/ enum auth_stat _svcauth_short(rqst, msg) +struct svc_req *rqst; +struct rpc_msg *msg; +{ + return (AUTH_REJECTEDCRED); +} -- cgit v1.2.1