several new kerberos related libraries and applications to FreeBSD: o kgetcred(1) allows one to manually get a ticket for a particular service. o kf(1) securily forwards ticket to another host through an authenticated and encrypted stream. o kcc(1) is an umbrella program around klist(1), kswitch(1), kgetcred(1) and other user kerberos operations. klist and kswitch are just symlinks to kcc(1) now. o kswitch(1) allows you to easily switch between kerberos credentials if you're running KCM. o hxtool(1) is a certificate management tool to use with PKINIT. o string2key(1) maps a password into key. o kdigest(8) is a userland tool to access the KDC's digest interface. o kimpersonate(8) creates a "fake" ticket for a service. We also now install manpages for some lirbaries that were not installed before, libheimntlm and libhx509. - The new HEIMDAL version no longer supports Kerberos 4. All users are recommended to switch to Kerberos 5. - Weak ciphers are now disabled by default. To enable DES support (used by telnet(8)), use "allow_weak_crypto" option in krb5.conf. - libtelnet, pam_ksu and pam_krb5 are now compiled with error on warnings disabled due to the function they use (krb5_get_err_text(3)) being deprecated. I plan to work on this next. - Heimdal's KDC now require sqlite to operate. We use the bundled version and install it as libheimsqlite. If some other FreeBSD components will require it in the future we can rename it to libbsdsqlite and use for these components as well. - This is not a latest Heimdal version, the new one was released while I was working on the update. I will update it to 1.5.2 soon, as it fixes some important bugs and security issues.
303 lines
7.1 KiB
C
303 lines
7.1 KiB
C
/*
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* Copyright (c) 1997-2003 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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RCSID("$Id$");
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#endif
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#include <ctype.h>
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#ifdef KRB5
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#include <krb5.h>
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#endif
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#include <kafs.h>
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#include <roken.h>
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#include <getarg.h>
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#include <err.h>
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static int help_flag;
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static int version_flag;
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static getarg_strings cells;
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static char *realm;
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static getarg_strings files;
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static int unlog_flag;
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static int verbose;
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#ifdef KRB5
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static char *client_string;
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static char *cache_string;
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static int use_krb5 = 1;
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#endif
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struct getargs args[] = {
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{ "cell", 'c', arg_strings, &cells, "cells to get tokens for", "cell" },
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{ "file", 'p', arg_strings, &files, "files to get tokens for", "path" },
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{ "realm", 'k', arg_string, &realm, "realm for afs cell", "realm" },
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{ "unlog", 'u', arg_flag, &unlog_flag, "remove tokens" },
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#ifdef KRB5
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{ "principal",'P',arg_string,&client_string,"principal to use","principal"},
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{ "cache", 0, arg_string, &cache_string, "ccache to use", "cache"},
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{ "v5", 0, arg_negative_flag, &use_krb5, "don't use Kerberos 5" },
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#endif
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{ "verbose",'v', arg_flag, &verbose },
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{ "version", 0, arg_flag, &version_flag },
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{ "help", 'h', arg_flag, &help_flag },
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};
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static int num_args = sizeof(args) / sizeof(args[0]);
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#ifdef KRB5
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krb5_context context;
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krb5_ccache id;
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#endif
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static const char *
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expand_one_file(FILE *f, const char *cell)
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{
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static char buf[1024];
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char *p;
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while (fgets (buf, sizeof(buf), f) != NULL) {
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if(buf[0] == '>') {
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for(p = buf; *p && !isspace((unsigned char)*p) && *p != '#'; p++)
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;
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*p = '\0';
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if(strncmp(buf + 1, cell, strlen(cell)) == 0)
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return buf + 1;
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}
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buf[0] = '\0';
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}
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return NULL;
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}
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static const char *
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expand_cell_name(const char *cell)
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{
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FILE *f;
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const char *c;
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const char **fn, *files[] = { _PATH_CELLSERVDB,
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_PATH_ARLA_CELLSERVDB,
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_PATH_OPENAFS_DEBIAN_CELLSERVDB,
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_PATH_ARLA_DEBIAN_CELLSERVDB,
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NULL };
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for(fn = files; *fn; fn++) {
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f = fopen(*fn, "r");
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if(f == NULL)
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continue;
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c = expand_one_file(f, cell);
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fclose(f);
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if(c)
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return c;
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}
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return cell;
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}
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static void
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usage(int ecode)
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{
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arg_printusage(args, num_args, NULL, "[cell|path]...");
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exit(ecode);
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}
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struct cell_list {
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char *cell;
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struct cell_list *next;
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} *cell_list;
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static int
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afslog_cell(const char *cell, int expand)
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{
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struct cell_list *p, **q;
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const char *c = cell;
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if(expand){
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c = expand_cell_name(cell);
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if(c == NULL){
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warnx("No cell matching \"%s\" found.", cell);
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return -1;
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}
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if(verbose && strcmp(c, cell) != 0)
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warnx("Cell \"%s\" expanded to \"%s\"", cell, c);
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}
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/* add to list of cells to get tokens for, and also remove
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duplicates; the actual afslog takes place later */
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for(p = cell_list, q = &cell_list; p; q = &p->next, p = p->next)
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if(strcmp(p->cell, c) == 0)
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return 0;
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p = malloc(sizeof(*p));
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if(p == NULL)
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return -1;
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p->cell = strdup(c);
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if(p->cell == NULL) {
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free(p);
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return -1;
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}
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p->next = NULL;
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*q = p;
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return 0;
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}
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static int
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afslog_file(const char *path)
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{
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char cell[64];
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if(k_afs_cell_of_file(path, cell, sizeof(cell))){
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warnx("No cell found for file \"%s\".", path);
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return -1;
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}
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if(verbose)
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warnx("File \"%s\" lives in cell \"%s\"", path, cell);
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return afslog_cell(cell, 0);
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}
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static int
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do_afslog(const char *cell)
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{
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int k5ret;
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k5ret = 0;
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#ifdef KRB5
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if(context != NULL && id != NULL && use_krb5) {
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k5ret = krb5_afslog(context, id, cell, realm);
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if(k5ret == 0)
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return 0;
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}
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#endif
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if (cell == NULL)
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cell = "<default cell>";
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#ifdef KRB5
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if (k5ret)
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krb5_warn(context, k5ret, "krb5_afslog(%s)", cell);
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#endif
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if (k5ret)
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return 1;
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return 0;
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}
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static void
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log_func(void *ctx, const char *str)
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{
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fprintf(stderr, "%s\n", str);
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}
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int
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main(int argc, char **argv)
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{
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int optind = 0;
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int i;
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int num;
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int ret = 0;
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int failed = 0;
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struct cell_list *p;
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setprogname(argv[0]);
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if(getarg(args, num_args, argc, argv, &optind))
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usage(1);
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if(help_flag)
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usage(0);
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if(version_flag) {
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print_version(NULL);
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exit(0);
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}
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if(!k_hasafs())
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errx(1, "AFS does not seem to be present on this machine");
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if(unlog_flag){
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k_unlog();
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exit(0);
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}
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#ifdef KRB5
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ret = krb5_init_context(&context);
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if (ret) {
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context = NULL;
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} else {
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if (client_string) {
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krb5_principal client;
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ret = krb5_parse_name(context, client_string, &client);
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if (ret == 0)
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ret = krb5_cc_cache_match(context, client, &id);
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if (ret)
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id = NULL;
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}
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if (id == NULL && cache_string) {
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if(krb5_cc_resolve(context, cache_string, &id) != 0) {
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krb5_warnx(context, "failed to open kerberos 5 cache '%s'",
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cache_string);
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id = NULL;
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}
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}
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if (id == NULL)
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if(krb5_cc_default(context, &id) != 0)
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id = NULL;
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}
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#endif
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if (verbose)
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kafs_set_verbose(log_func, NULL);
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num = 0;
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for(i = 0; i < files.num_strings; i++){
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afslog_file(files.strings[i]);
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num++;
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}
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free_getarg_strings (&files);
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for(i = 0; i < cells.num_strings; i++){
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afslog_cell(cells.strings[i], 1);
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num++;
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}
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free_getarg_strings (&cells);
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for(i = optind; i < argc; i++){
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num++;
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if(strcmp(argv[i], ".") == 0 ||
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strcmp(argv[i], "..") == 0 ||
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strchr(argv[i], '/') ||
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access(argv[i], F_OK) == 0)
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afslog_file(argv[i]);
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else
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afslog_cell(argv[i], 1);
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}
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if(num == 0) {
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if(do_afslog(NULL))
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failed++;
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} else
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for(p = cell_list; p; p = p->next) {
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if(verbose)
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warnx("Getting tokens for cell \"%s\"", p->cell);
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if(do_afslog(p->cell))
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failed++;
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}
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return failed;
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}
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