diff options
Diffstat (limited to 'REORG.TODO/sunrpc/svc_authux.c')
| -rw-r--r-- | REORG.TODO/sunrpc/svc_authux.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/REORG.TODO/sunrpc/svc_authux.c b/REORG.TODO/sunrpc/svc_authux.c new file mode 100644 index 0000000000..0c6b0242cd --- /dev/null +++ b/REORG.TODO/sunrpc/svc_authux.c @@ -0,0 +1,147 @@ +/* + * 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) 2010, Oracle America, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * 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. + * * Neither the name of the "Oracle America, Inc." 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 COPYRIGHT HOLDERS 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 + * COPYRIGHT HOLDER 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 <stdio.h> +#include <string.h> +#include <rpc/rpc.h> +#include <rpc/svc.h> + +/* + * Unix longhand authenticator + */ +enum auth_stat +_svcauth_unix (struct svc_req *rqst, struct rpc_msg *msg) +{ + enum auth_stat stat; + XDR xdrs; + struct authunix_parms *aup; + 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; + u_int str_len, gid_len; + u_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_INT32 (buf); + if (str_len > MAX_MACHINE_NAME) + { + stat = AUTH_BADCRED; + goto done; + } + memcpy (aup->aup_machname, (caddr_t) buf, (u_int) str_len); + aup->aup_machname[str_len] = 0; + str_len = RNDUP (str_len); + buf = (int32_t *) ((char *) buf + str_len); + aup->aup_uid = IXDR_GET_LONG (buf); + aup->aup_gid = IXDR_GET_LONG (buf); + gid_len = IXDR_GET_U_INT32 (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) + { + 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; + } + + /* get the verifier */ + if ((u_int)msg->rm_call.cb_verf.oa_length) + { + rqst->rq_xprt->xp_verf.oa_flavor = + msg->rm_call.cb_verf.oa_flavor; + rqst->rq_xprt->xp_verf.oa_base = + msg->rm_call.cb_verf.oa_base; + rqst->rq_xprt->xp_verf.oa_length = + msg->rm_call.cb_verf.oa_length; + } + else + { + 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 (struct svc_req *rqst, struct rpc_msg *msg) +{ + return AUTH_REJECTEDCRED; +} |