2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part. Users
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11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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15 * modification or enhancement.
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18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
23 * Sun has been advised of the possibility of such damages.
25 * Sun Microsystems, Inc.
27 * Mountain View, California 94043
32 * Handles UNIX flavor authentication parameters on the service side of rpc.
33 * There are two svc auth implementations here: AUTH_UNIX and AUTH_SHORT.
34 * _svcauth_unix does full blown unix style uid,gid+gids auth,
35 * _svcauth_short uses a shorthand auth to index into a cache of longhand auths.
36 * Note: the shorthand has been gutted for efficiency.
38 * Copyright (C) 1984, Sun Microsystems, Inc.
51 * Unix longhand authenticator
54 _svcauth_unix (struct svc_req *rqst, struct rpc_msg *msg) attribute_hidden;
56 _svcauth_unix (struct svc_req *rqst, struct rpc_msg *msg)
60 struct authunix_parms *aup;
64 struct authunix_parms area_aup;
65 char area_machname[MAX_MACHINE_NAME + 1];
66 gid_t area_gids[NGRPS];
70 u_int str_len, gid_len;
73 area = (struct area *) rqst->rq_clntcred;
74 aup = &area->area_aup;
75 aup->aup_machname = area->area_machname;
76 aup->aup_gids = area->area_gids;
77 auth_len = (u_int) msg->rm_call.cb_cred.oa_length;
78 xdrmem_create (&xdrs, msg->rm_call.cb_cred.oa_base, auth_len, XDR_DECODE);
79 buf = XDR_INLINE (&xdrs, auth_len);
82 aup->aup_time = IXDR_GET_LONG (buf);
83 str_len = IXDR_GET_U_INT32 (buf);
84 if (str_len > MAX_MACHINE_NAME)
89 memcpy (aup->aup_machname, (caddr_t) buf, (u_int) str_len);
90 aup->aup_machname[str_len] = 0;
91 str_len = RNDUP (str_len);
92 buf = (int32_t *) ((char *) buf + str_len);
93 aup->aup_uid = IXDR_GET_LONG (buf);
94 aup->aup_gid = IXDR_GET_LONG (buf);
95 gid_len = IXDR_GET_U_INT32 (buf);
101 aup->aup_len = gid_len;
102 for (i = 0; i < gid_len; i++)
104 aup->aup_gids[i] = IXDR_GET_LONG (buf);
107 * five is the smallest unix credentials structure -
108 * timestamp, hostname len (0), uid, gid, and gids len (0).
110 if ((5 + gid_len) * BYTES_PER_XDR_UNIT + str_len > auth_len)
112 (void) printf ("bad auth_len gid %d str %d auth %d\n",
113 gid_len, str_len, auth_len);
118 else if (!xdr_authunix_parms (&xdrs, aup))
120 xdrs.x_op = XDR_FREE;
121 (void) xdr_authunix_parms (&xdrs, aup);
126 /* get the verifier */
127 if ((u_int)msg->rm_call.cb_verf.oa_length)
129 rqst->rq_xprt->xp_verf.oa_flavor =
130 msg->rm_call.cb_verf.oa_flavor;
131 rqst->rq_xprt->xp_verf.oa_base =
132 msg->rm_call.cb_verf.oa_base;
133 rqst->rq_xprt->xp_verf.oa_length =
134 msg->rm_call.cb_verf.oa_length;
138 rqst->rq_xprt->xp_verf.oa_flavor = AUTH_NULL;
139 rqst->rq_xprt->xp_verf.oa_length = 0;
149 * Shorthand unix authenticator
150 * Looks up longhand in a cache.
154 _svcauth_short (struct svc_req *rqst attribute_unused, struct rpc_msg *msg attribute_unused) attribute_hidden;
156 _svcauth_short (struct svc_req *rqst attribute_unused, struct rpc_msg *msg attribute_unused)
158 return AUTH_REJECTEDCRED;