Adding upstream version 1.3.4+ds.upstream/1.3.4+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 148 insertions, 0 deletions

diff --git a/src/svc_auth_unix.c b/src/svc_auth_unix.c
new file mode 100644
index 0000000..8f992a4
--- /dev/null
+++ b/src/svc_auth_unix.c
@@ -0,0 +1,148 @@
+/*
+ * Copyright (c) 2009, Sun Microsystems, Inc.
+ * All rights reserved.
+ *
+ * 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 Sun Microsystems, 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.
+ */
+
+/*
+ * 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 <pthread.h>
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <rpc/rpc.h>
+
+extern SVCAUTH svc_auth_none;
+
+/*
+ * Unix longhand authenticator
+ */
+enum auth_stat
+_svcauth_unix(rqst, msg)
+	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;
+	size_t str_len, gid_len;
+	u_int i;
+
+	assert(rqst != NULL);
+	assert(msg != NULL);
+
+	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_INT32(buf);
+		str_len = (size_t)IXDR_GET_U_INT32(buf);
+		if (str_len > MAX_MACHINE_NAME) {
+			stat = AUTH_BADCRED;
+			goto done;
+		}
+		memmove(aup->aup_machname, buf, str_len);
+		aup->aup_machname[str_len] = 0;
+		str_len = RNDUP(str_len);
+		buf += str_len / sizeof (int32_t);
+		aup->aup_uid = (int)IXDR_GET_INT32(buf);
+		aup->aup_gid = (int)IXDR_GET_INT32(buf);
+		gid_len = (size_t)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] = (int)IXDR_GET_INT32(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 %ld str %ld auth %u\n",
+			    (long)gid_len, (long)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(rqst, msg)
+	struct svc_req *rqst;
+	struct rpc_msg *msg;
+{
+	return (AUTH_REJECTEDCRED);
+}