summaryrefslogtreecommitdiff
path: root/libc/inet/rpc/svc_authux.c
diff options
context:
space:
mode:
Diffstat (limited to 'libc/inet/rpc/svc_authux.c')
-rw-r--r--libc/inet/rpc/svc_authux.c161
1 files changed, 161 insertions, 0 deletions
diff --git a/libc/inet/rpc/svc_authux.c b/libc/inet/rpc/svc_authux.c
new file mode 100644
index 000000000..3afcfc5d4
--- /dev/null
+++ b/libc/inet/rpc/svc_authux.c
@@ -0,0 +1,161 @@
+/*
+ * 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
+ */
+
+/*
+ * 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.
+ */
+
+#define __FORCE_GLIBC
+#include <features.h>
+
+#include <stdio.h>
+#include <string.h>
+#include <rpc/rpc.h>
+#include <rpc/svc.h>
+
+libc_hidden_proto(memcpy)
+libc_hidden_proto(printf)
+libc_hidden_proto(xdrmem_create)
+libc_hidden_proto(xdr_authunix_parms)
+
+/*
+ * Unix longhand authenticator
+ */
+attribute_hidden
+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)
+ {
+ (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;
+ }
+
+ /* 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 */
+attribute_hidden
+enum auth_stat
+_svcauth_short (struct svc_req *rqst attribute_unused, struct rpc_msg *msg attribute_unused)
+{
+ return AUTH_REJECTEDCRED;
+}