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18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
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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.
47 * Unix longhand authenticator
50 _svcauth_unix (struct svc_req *rqst, struct rpc_msg *msg)
54 struct authunix_parms *aup;
58 struct authunix_parms area_aup;
59 char area_machname[MAX_MACHINE_NAME + 1];
60 gid_t area_gids[NGRPS];
64 u_int str_len, gid_len;
67 area = (struct area *) rqst->rq_clntcred;
68 aup = &area->area_aup;
69 aup->aup_machname = area->area_machname;
70 aup->aup_gids = area->area_gids;
71 auth_len = (u_int) msg->rm_call.cb_cred.oa_length;
72 INTUSE(xdrmem_create) (&xdrs, msg->rm_call.cb_cred.oa_base, auth_len,
74 buf = XDR_INLINE (&xdrs, auth_len);
77 aup->aup_time = IXDR_GET_LONG (buf);
78 str_len = IXDR_GET_U_INT32 (buf);
79 if (str_len > MAX_MACHINE_NAME)
84 memcpy (aup->aup_machname, (caddr_t) buf, (u_int) str_len);
85 aup->aup_machname[str_len] = 0;
86 str_len = RNDUP (str_len);
87 buf = (int32_t *) ((char *) buf + str_len);
88 aup->aup_uid = IXDR_GET_LONG (buf);
89 aup->aup_gid = IXDR_GET_LONG (buf);
90 gid_len = IXDR_GET_U_INT32 (buf);
96 aup->aup_len = gid_len;
97 for (i = 0; i < gid_len; i++)
99 aup->aup_gids[i] = IXDR_GET_LONG (buf);
102 * five is the smallest unix credentials structure -
103 * timestamp, hostname len (0), uid, gid, and gids len (0).
105 if ((5 + gid_len) * BYTES_PER_XDR_UNIT + str_len > auth_len)
111 else if (!INTUSE(xdr_authunix_parms) (&xdrs, aup))
113 xdrs.x_op = XDR_FREE;
114 (void) INTUSE(xdr_authunix_parms) (&xdrs, aup);
119 /* get the verifier */
120 if ((u_int)msg->rm_call.cb_verf.oa_length)
122 rqst->rq_xprt->xp_verf.oa_flavor =
123 msg->rm_call.cb_verf.oa_flavor;
124 rqst->rq_xprt->xp_verf.oa_base =
125 msg->rm_call.cb_verf.oa_base;
126 rqst->rq_xprt->xp_verf.oa_length =
127 msg->rm_call.cb_verf.oa_length;
131 rqst->rq_xprt->xp_verf.oa_flavor = AUTH_NULL;
132 rqst->rq_xprt->xp_verf.oa_length = 0;
142 * Shorthand unix authenticator
143 * Looks up longhand in a cache.
147 _svcauth_short (struct svc_req *rqst, struct rpc_msg *msg)
149 return AUTH_REJECTEDCRED;