This commit was generated by cvs2svn to compensate for changes in r26236,

which included commits to RCS files with non-trunk default branches.

1 files changed, 236 insertions, 0 deletions

diff --git a/usr.sbin/rpc.ypupdated/ypupdated_server.c b/usr.sbin/rpc.ypupdated/ypupdated_server.c
new file mode 100644
index 0000000..11b007e
--- /dev/null
+++ b/usr.sbin/rpc.ypupdated/ypupdated_server.c
@@ -0,0 +1,236 @@
+/*
+ * Copyright (c) 1995, 1996
+ *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Bill Paul.
+ * 4. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul 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.
+ *
+ * ypupdate server implementation
+ *
+ * Written by Bill Paul <wpaul@ctr.columbia.edu>
+ * Center for Telecommunications Research
+ * Columbia University, New York City
+ *
+ *      $Id: ypupdated_server.c,v 1.3 1996/12/26 06:06:05 wpaul Exp wpaul $
+ */
+
+#include <stdio.h>
+#include <rpc/rpc.h>
+#include <rpc/auth_des.h>
+#include <rpc/key_prot.h>
+#include <sys/param.h>
+#include <sys/cdefs.h>
+#include <rpcsvc/yp.h>
+#include "ypupdate_prot.h"
+#include "ypupdated_extern.h"
+#include "yp_extern.h"
+#include "ypxfr_extern.h"
+
+#ifndef lint
+static const char rcsid[] = "$Id: ypupdated_server.c,v 1.3 1996/12/26 06:06:05 wpaul Exp wpaul $";
+#endif
+
+int children = 0;
+int forked = 0;
+
+/*
+ * Try to avoid spoofing: if a client chooses to use a very large
+ * window and then tries a bunch of randomly chosen encrypted timestamps,
+ * there's a chance he might stumble onto a valid combination.
+ * We therefore reject any RPCs with a window size larger than a preset
+ * value.
+ */
+#ifndef WINDOW
+#define WINDOW (60*60)
+#endif
+
+static enum auth_stat yp_checkauth(svcreq)
+	struct svc_req *svcreq;
+{
+	struct authdes_cred *des_cred;
+
+	switch (svcreq->rq_cred.oa_flavor) {
+	case AUTH_DES:
+		des_cred = (struct authdes_cred *) svcreq->rq_clntcred;
+		if (des_cred->adc_fullname.window > WINDOW) {
+			yp_error("warning: client-specified window size \
+was too large -- possible spoof attempt");
+			return(AUTH_BADCRED);
+		}
+		return(AUTH_OK);
+		break;
+	case AUTH_UNIX:
+	case AUTH_NONE:
+		yp_error("warning: client didn't use DES authentication");
+		return(AUTH_TOOWEAK);
+		break;
+	default:
+		yp_error("client used unknown auth flavor");
+		return(AUTH_REJECTEDCRED);
+		break;
+	}
+}
+
+unsigned int *ypu_change_1_svc(args, svcreq)
+	struct ypupdate_args *args;
+	struct svc_req *svcreq;
+{
+	struct authdes_cred *des_cred;
+	static int res;
+	char *netname;
+	enum auth_stat astat;
+
+	res = 0;
+
+	astat = yp_checkauth(svcreq);
+
+	if (astat != AUTH_OK) {
+		svcerr_auth(svcreq->rq_xprt, astat);
+		return(&res);
+	}
+
+	des_cred = (struct authdes_cred *) svcreq->rq_clntcred;
+	netname = des_cred->adc_fullname.name;
+
+	res = localupdate(netname, "/etc/publickey", YPOP_CHANGE,
+		args->key.yp_buf_len, args->key.yp_buf_val,
+		args->datum.yp_buf_len, args->datum.yp_buf_val);
+
+	if (res)
+		return (&res);
+
+	res = ypmap_update(netname, args->mapname, YPOP_CHANGE,
+		args->key.yp_buf_len, args->key.yp_buf_val,
+		args->datum.yp_buf_len, args->datum.yp_buf_val);
+
+	return (&res);
+}
+
+unsigned int *ypu_insert_1_svc(args, svcreq)
+	struct ypupdate_args *args;
+	struct svc_req *svcreq;
+{
+	struct authdes_cred *des_cred;
+	static int res;
+	char *netname;
+	enum auth_stat astat;
+	
+	res = 0;
+
+	astat = yp_checkauth(svcreq);
+
+	if (astat != AUTH_OK) {
+		svcerr_auth(svcreq->rq_xprt, astat);
+		return(&res);
+	}
+
+	des_cred = (struct authdes_cred *) svcreq->rq_clntcred;
+	netname = des_cred->adc_fullname.name;
+
+	res = localupdate(netname, "/etc/publickey", YPOP_INSERT,
+		args->key.yp_buf_len, args->key.yp_buf_val,
+		args->datum.yp_buf_len, args->datum.yp_buf_val);
+
+	if (res)
+		return (&res);
+
+	res = ypmap_update(netname, args->mapname, YPOP_INSERT,
+		args->key.yp_buf_len, args->key.yp_buf_val,
+		args->datum.yp_buf_len, args->datum.yp_buf_val);
+
+	return (&res);
+}
+
+unsigned int *ypu_delete_1_svc(args, svcreq)
+	struct ypdelete_args *args;
+	struct svc_req *svcreq;
+{
+	struct authdes_cred *des_cred;
+	static int res;
+	char *netname;
+	enum auth_stat astat;
+
+	res = 0;
+
+	astat = yp_checkauth(svcreq);
+
+	if (astat != AUTH_OK) {
+		svcerr_auth(svcreq->rq_xprt, astat);
+		return(&res);
+	}
+
+	des_cred = (struct authdes_cred *) svcreq->rq_clntcred;
+	netname = des_cred->adc_fullname.name;
+
+	res = localupdate(netname, "/etc/publickey", YPOP_DELETE,
+		args->key.yp_buf_len, args->key.yp_buf_val,
+		0,			NULL);
+
+	if (res)
+		return (&res);
+
+	res = ypmap_update(netname, args->mapname, YPOP_DELETE,
+		args->key.yp_buf_len, args->key.yp_buf_val,
+		0,			NULL);
+
+	return (&res);
+}
+
+unsigned int *ypu_store_1_svc(args, svcreq)
+	struct ypupdate_args *args;
+	struct svc_req *svcreq;
+{
+	struct authdes_cred *des_cred;
+	static int res;
+	char *netname;
+	enum auth_stat astat;
+
+	res = 0;
+
+	astat = yp_checkauth(svcreq);
+
+	if (astat != AUTH_OK) {
+		svcerr_auth(svcreq->rq_xprt, astat);
+		return(&res);
+	}
+
+	des_cred = (struct authdes_cred *) svcreq->rq_clntcred;
+	netname = des_cred->adc_fullname.name;
+
+	res = localupdate(netname, "/etc/publickey", YPOP_STORE,
+		args->key.yp_buf_len, args->key.yp_buf_val,
+		args->datum.yp_buf_len, args->datum.yp_buf_val);
+
+	if (res)
+		return (&res);
+
+	res = ypmap_update(netname, args->mapname, YPOP_STORE,
+		args->key.yp_buf_len, args->key.yp_buf_val,
+		args->datum.yp_buf_len, args->datum.yp_buf_val);
+
+	return (&res);
+}