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authormarkm <markm@FreeBSD.org>1997-09-04 06:04:33 +0000
committermarkm <markm@FreeBSD.org>1997-09-04 06:04:33 +0000
commita8a89cfaf983bc64f4b42f7c35209a5a36dd0fe8 (patch)
tree0b84977f19022a965f8c6145f067f951173f6290 /crypto/kerberosIV/appl/kauth/kauth.c
downloadFreeBSD-src-a8a89cfaf983bc64f4b42f7c35209a5a36dd0fe8.zip
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Initial import of KTH eBones. This has been cleaned up to only include
the "core" Kerberos functionality. The rest of the userland will get their own changes later.
Diffstat (limited to 'crypto/kerberosIV/appl/kauth/kauth.c')
-rw-r--r--crypto/kerberosIV/appl/kauth/kauth.c312
1 files changed, 312 insertions, 0 deletions
diff --git a/crypto/kerberosIV/appl/kauth/kauth.c b/crypto/kerberosIV/appl/kauth/kauth.c
new file mode 100644
index 0000000..84614b0
--- /dev/null
+++ b/crypto/kerberosIV/appl/kauth/kauth.c
@@ -0,0 +1,312 @@
+/*
+ * 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.
+ */
+
+/*
+ * Little program that reads an srvtab or password and
+ * creates a suitable ticketfile and associated AFS tokens.
+ *
+ * If an optional command is given the command is executed in a
+ * new PAG and when the command exits the tickets are destroyed.
+ */
+
+#include "kauth.h"
+
+RCSID("$Id: kauth.c,v 1.75 1997/05/02 15:09:24 assar Exp $");
+
+krb_principal princ;
+static char srvtab[MaxPathLen + 1];
+static int lifetime = DEFAULT_TKT_LIFE;
+static char remote_tktfile[MaxPathLen + 1];
+static char remoteuser[100];
+static char *cell = 0;
+
+static void
+usage(void)
+{
+ fprintf(stderr,
+ "Usage: %s [-n <name>] [-r remoteuser] [-t remote ticketfile]"
+ "[-l lifetime (in minutes) ] [-h hosts... ]"
+ "[-f srvtab ] [-c AFS cell name ] [command ... ]\n",
+ __progname);
+ fprintf(stderr, "\nA fully qualified name can be given user[.instance][@realm]\nRealm is converted to uppercase!\n");
+ exit(1);
+}
+
+static void
+doexec(int argc, char **argv)
+{
+ int status;
+ pid_t ret;
+
+ switch (fork()) {
+ case -1:
+ err (1, "fork");
+ break;
+ case 0:
+ /* in child */
+ execvp(argv[0], argv);
+ err (1, "Can't exec program ``%s''", argv[0]);
+ break;
+ default:
+ /* in parent */
+ do {
+ ret = wait(&status);
+ } while ((ret > 0 && !WIFEXITED(status)) || (ret < 0 && errno == EINTR));
+ if (ret < 0)
+ perror("wait");
+ dest_tkt();
+ if (k_hasafs())
+ k_unlog();
+ break;
+ }
+}
+
+static RETSIGTYPE
+renew(int sig)
+{
+ int code;
+
+ signal(SIGALRM, renew);
+
+ code = krb_get_svc_in_tkt(princ.name, princ.instance, princ.realm,
+ KRB_TICKET_GRANTING_TICKET,
+ princ.realm, lifetime, srvtab);
+ if (code)
+ warnx ("%s", krb_get_err_text(code));
+ else if (k_hasafs())
+ {
+ if ((code = k_afsklog(cell, NULL)) != 0 && code != KDC_PR_UNKNOWN) {
+ warnx ("%s", krb_get_err_text(code));
+ }
+ }
+
+ alarm(krb_life_to_time(0, lifetime)/2 - 60);
+ SIGRETURN(0);
+}
+
+static int
+zrefresh(void)
+{
+ switch (fork()) {
+ case -1:
+ err (1, "Warning: Failed to fork zrefresh");
+ return -1;
+ case 0:
+ /* Child */
+ execlp("zrefresh", "zrefresh", 0);
+ execl(BINDIR "/zrefresh", "zrefresh", 0);
+ exit(1);
+ default:
+ /* Parent */
+ break;
+ }
+ return 0;
+}
+
+static int
+key_to_key(char *user, char *instance, char *realm, void *arg,
+ des_cblock *key)
+{
+ memcpy(key, arg, sizeof(des_cblock));
+ return 0;
+}
+
+int
+main(int argc, char **argv)
+{
+ int code, more_args;
+ int ret;
+ int c;
+ char *file;
+ int pflag = 0;
+ char passwd[100];
+ des_cblock key;
+ char **host;
+ int nhost;
+ char tf[MaxPathLen];
+
+ set_progname (argv[0]);
+
+ if ((file = getenv("KRBTKFILE")) == 0)
+ file = TKT_FILE;
+
+ memset(&princ, 0, sizeof(princ));
+ memset(srvtab, 0, sizeof(srvtab));
+ *remoteuser = '\0';
+ nhost = 0;
+
+ while ((c = getopt(argc, argv, "r:t:f:hl:n:c:")) != EOF)
+ switch (c) {
+ case 'f':
+ strncpy(srvtab, optarg, sizeof(srvtab));
+ break;
+ case 't':
+ strncpy(remote_tktfile, optarg, sizeof(remote_tktfile));
+ break;
+ case 'r':
+ strncpy(remoteuser, optarg, sizeof(remoteuser));
+ break;
+ case 'l':
+ lifetime = atoi(optarg);
+ if (lifetime == -1)
+ lifetime = 255;
+ else if (lifetime < 5)
+ lifetime = 1;
+ else
+ lifetime = krb_time_to_life(0, lifetime*60);
+ if (lifetime > 255)
+ lifetime = 255;
+ break;
+ case 'n':
+ if ((code = krb_parse_name(optarg, &princ)) != 0) {
+ warnx ("%s", krb_get_err_text(code));
+ usage();
+ }
+ strupr(princ.realm);
+ pflag = 1;
+ break;
+ case 'c':
+ cell = optarg;
+ break;
+ case 'h':
+ host = argv + optind;
+ for(nhost = 0; optind < argc && *argv[optind] != '-'; ++optind)
+ ++nhost;
+ break;
+ case '?':
+ default:
+ usage();
+ break;
+ }
+
+ /* Look for kerberos name */
+ if (!pflag && optind < argc && krb_parse_name(argv[optind], &princ) == 0) {
+ ++optind;
+ strupr(princ.realm);
+ }
+
+ if (princ.name[0] == '\0' && krb_get_default_principal (princ.name,
+ princ.instance,
+ princ.realm) < 0)
+ errx (1, "Could not get default principal");
+
+ if (*remoteuser == '\0')
+ strcpy (remoteuser, princ.name);
+
+ more_args = argc - optind;
+
+ if (princ.realm[0] == '\0')
+ if (krb_get_lrealm(princ.realm, 1) != KSUCCESS)
+ strcpy(princ.realm, KRB_REALM);
+
+ if (more_args) {
+ int f;
+
+ do{
+ snprintf(tf, sizeof(tf),
+ TKT_ROOT "%u_%u",
+ (unsigned)getuid(),
+ (unsigned)(getpid()*time(0)));
+ f = open(tf, O_CREAT|O_EXCL|O_RDWR);
+ }while(f < 0);
+ close(f);
+ unlink(tf);
+ setenv("KRBTKFILE", tf, 1);
+ krb_set_tkt_string (tf);
+ }
+
+ if (srvtab[0])
+ {
+ signal(SIGALRM, renew);
+
+ code = read_service_key (princ.name, princ.instance, princ.realm, 0,
+ srvtab, (char *)&key);
+ if (code == KSUCCESS)
+ code = krb_get_in_tkt(princ.name, princ.instance, princ.realm,
+ KRB_TICKET_GRANTING_TICKET,
+ princ.realm, lifetime,
+ key_to_key, NULL, key);
+ alarm(krb_life_to_time(0, lifetime)/2 - 60);
+ }
+ else {
+ char prompt[128];
+
+ snprintf(prompt, sizeof(prompt), "%s's Password: ", krb_unparse_name(&princ));
+ if (des_read_pw_string(passwd, sizeof(passwd)-1, prompt, 0)){
+ memset(passwd, 0, sizeof(passwd));
+ exit(1);
+ }
+ des_string_to_key (passwd, &key);
+ code = krb_get_in_tkt (princ.name, princ.instance, princ.realm,
+ KRB_TICKET_GRANTING_TICKET,
+ princ.realm, lifetime,
+ key_to_key, NULL, key);
+ if(code == INTK_BADPW) {
+ afs_string_to_key (passwd, princ.realm, &key);
+ code = krb_get_in_tkt (princ.name, princ.instance, princ.realm,
+ KRB_TICKET_GRANTING_TICKET,
+ princ.realm, lifetime,
+ key_to_key, NULL, key);
+ }
+ memset(passwd, 0, sizeof(passwd));
+ }
+ if (code) {
+ memset (key, 0, sizeof(key));
+ errx (1, "%s", krb_get_err_text(code));
+ }
+
+ if (k_hasafs()) {
+ if (more_args)
+ k_setpag();
+ if ((code = k_afsklog(cell, NULL)) != 0 && code != KDC_PR_UNKNOWN)
+ warnx ("%s", krb_get_err_text(code));
+ }
+
+ for(ret = 0; nhost-- > 0; host++)
+ ret += rkinit(&princ, lifetime, remoteuser, remote_tktfile, &key, *host);
+
+ if (ret)
+ return ret;
+
+ if (more_args)
+ doexec(more_args, &argv[optind]);
+ else
+ zrefresh();
+
+ return 0;
+}
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