kauth is a nice tool. Gets you kerberos tickets, afs-tokens and other nice

things.

1 files changed, 223 insertions, 0 deletions

diff --git a/kerberosIV/kauth/rkinit.c b/kerberosIV/kauth/rkinit.c
new file mode 100644
index 00000000000..615b6592583
--- /dev/null
+++ b/kerberosIV/kauth/rkinit.c
@@ -0,0 +1,223 @@
+/*	$OpenBSD: rkinit.c,v 1.1 1997/12/18 22:28:05 art Exp $	*/
+/* $KTH: rkinit.c,v 1.19 1997/04/01 08:17:33 joda Exp $ */
+
+/*
+ * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * 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 the Kungliga Tekniska
+ *      Högskolan and its contributors.
+ * 
+ * 4. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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.
+ */
+
+#include "kauth.h"
+
+static struct in_addr *
+getalladdrs (char *hostname, unsigned *count)
+{
+    struct hostent *hostent;
+    struct in_addr **h;
+    struct in_addr *addr;
+    unsigned naddr;
+    unsigned maxaddr;
+
+    hostent = gethostbyname (hostname);
+    if (hostent == NULL) {
+	warnx ("gethostbyname '%s' failed: %s\n",
+	       hostname,
+#ifdef HAVE_H_ERRNO
+	       hstrerror(h_errno)
+#else
+	       "unknown error"
+#endif
+	    );
+	return NULL;
+    }
+    maxaddr = 1;
+    naddr = 0;
+    addr = malloc(sizeof(*addr) * maxaddr);
+    if (addr == NULL) {
+	warnx ("out of memory");
+	return NULL;
+    }
+    for (h = (struct in_addr **)(hostent->h_addr_list);
+	 *h != NULL;
+	 h++) {
+	if (naddr >= maxaddr) {
+	    maxaddr *= 2;
+	    addr = realloc (addr, sizeof(*addr) * maxaddr);
+	    if (addr == NULL) {
+		warnx ("out of memory");
+		return NULL;
+	    }
+	}
+	addr[naddr++] = **h;
+    }
+    addr = realloc (addr, sizeof(*addr) * naddr);
+    if (addr == NULL) {
+	warnx ("out of memory");
+	return NULL;
+    }
+    *count = naddr;
+    return addr;
+}
+
+static int
+doit_host (krb_principal *princ, int lifetime, char *locuser, 
+	   char *tktfile, des_cblock *key, int s, char *hostname)
+{
+    char buf[BUFSIZ];
+    int inlen;
+    KTEXT_ST text;
+    CREDENTIALS cred;
+    MSG_DAT msg;
+    int status;
+    des_key_schedule schedule;
+    struct sockaddr_in thisaddr, thataddr;
+    int addrlen;
+    void *ret;
+
+    addrlen = sizeof(thisaddr);
+    if (getsockname (s, (struct sockaddr *)&thisaddr, &addrlen) < 0 ||
+	addrlen != sizeof(thisaddr)) {
+	warn ("getsockname(%s)", hostname);
+	return 1;
+    }
+    addrlen = sizeof(thataddr);
+    if (getpeername (s, (struct sockaddr *)&thataddr, &addrlen) < 0 ||
+	addrlen != sizeof(thataddr)) {
+	warn ("getpeername(%s)", hostname);
+	return 1;
+    }
+
+    status = krb_sendauth (KOPT_DO_MUTUAL, s, &text, "rcmd",
+			   hostname, krb_realmofhost (hostname),
+			   getpid(), &msg, &cred, schedule,
+			   &thisaddr, &thataddr, KAUTH_VERSION);
+    if (status != KSUCCESS) {
+	warnx ("%s: %s\n", hostname, krb_get_err_text(status));
+	return 1;
+    }
+    inlen = pack_args (buf, princ, lifetime, locuser, tktfile);
+
+    if (write_encrypted(s, buf, inlen, schedule, &cred.session,
+			&thisaddr, &thataddr) < 0) {
+	warn ("write to %s", hostname);
+	return 1;
+    }
+
+    inlen = read_encrypted (s, buf, sizeof(buf), &ret, schedule,
+			    &cred.session, &thataddr, &thisaddr);
+    if (inlen < 0) {
+	warn ("read from %s failed", hostname);
+	return 1;
+    }
+
+    if (strncmp(ret, "ok", inlen) != 0) {
+	warnx ("error from %s: %.*s\n",
+	       hostname, inlen, (char *)ret);
+	return 1;
+    }
+
+    inlen = read_encrypted (s, buf, sizeof(buf), &ret, schedule,
+			    &cred.session, &thataddr, &thisaddr);
+    if (inlen < 0) {
+	warn ("read from %s", hostname);
+	return 1;
+    }
+     
+    {
+	des_key_schedule key_s;
+
+	des_key_sched(key, key_s);
+	des_pcbc_encrypt(ret, ret, inlen, key_s, key, DES_DECRYPT);
+	memset(key_s, 0, sizeof(key_s));
+    }
+    write_encrypted (s, ret, inlen, schedule, &cred.session,
+		     &thisaddr, &thataddr);
+
+    inlen = read_encrypted (s, buf, sizeof(buf), &ret, schedule,
+			    &cred.session, &thataddr, &thisaddr);
+    if (inlen < 0) {
+	warn ("read from %s", hostname);
+	return 1;
+    }
+
+    if (strncmp(ret, "ok", inlen) != 0) {
+	warnx ("error from %s: %.*s\n",
+	       hostname, inlen, (char *)ret);
+	return 1;
+    }
+    return 0;
+}
+
+int
+rkinit (krb_principal *princ, int lifetime, char *locuser, 
+	char *tktfile, des_cblock *key, char *hostname)
+{
+    struct in_addr *addr;
+    unsigned naddr;
+    unsigned i;
+    int port;
+    int success;
+
+    addr = getalladdrs (hostname, &naddr);
+    if (addr == NULL)
+	return 1;
+    port = k_getportbyname ("kauth", "tcp", htons(KAUTH_PORT));
+    success = 0;
+    for (i = 0; !success && i < naddr; ++i) {
+	struct sockaddr_in a;
+	int s;
+
+	memset(&a, 0, sizeof(a));
+	a.sin_family = AF_INET;
+	a.sin_port   = port;
+	a.sin_addr   = addr[i];
+
+	s = socket (AF_INET, SOCK_STREAM, 0);
+	if (s < 0) {
+	    warn("socket");
+	    return 1;
+	}
+	if (connect(s, (struct sockaddr *)&a, sizeof(a)) < 0) {
+	    warn("connect(%s)", hostname);
+	    continue;
+	}
+
+	success = success || !doit_host (princ, lifetime,
+					 locuser, tktfile, key,
+					 s, hostname);
+	close (s);
+    }
+    return !success;
+}