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/*
* Copyright (c) 1997-2004 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. 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 "kadmin_locl.h"
#include "heim_threads.h"
#include "krb5-protos.h"
static char *check_library = NULL;
static char *check_function = NULL;
static getarg_strings policy_libraries = { 0, NULL };
static char *config_file;
static char sHDB[] = "HDBGET:";
static char *keytab_str = sHDB;
#ifndef WIN32
static char *fuzz_file;
static char *fuzz_client_name;
static char *fuzz_keytab_name;
static char *fuzz_service_name;
static char *fuzz_admin_server;
#endif
static int help_flag;
static int version_flag;
static int debug_flag;
static int readonly_flag;
static char *port_str;
char *realm;
int list_chunk_size = -1;
static int detach_from_console = -1;
int daemon_child = -1;
static struct getargs args[] = {
{
"config-file", 'c', arg_string, &config_file,
"location of config file", "file"
},
{
"keytab", 0, arg_string, &keytab_str,
"what keytab to use", "keytab"
},
{ "realm", 'r', arg_string, &realm,
"realm to use", "realm"
},
#ifdef HAVE_DLOPEN
{ "check-library", 0, arg_string, &check_library,
"library to load password check function from", "library" },
{ "check-function", 0, arg_string, &check_function,
"password check function to load", "function" },
{ "policy-libraries", 0, arg_strings, &policy_libraries,
"password check function to load", "function" },
#endif
{ "debug", 'd', arg_flag, &debug_flag,
"enable debugging", NULL
},
{ "list-chunk-size", 0, arg_integer,&list_chunk_size,
"set the LIST streaming count of names per chunk", "NUMBER"
},
{
"detach", 0 , arg_flag, &detach_from_console,
"detach from console", NULL
},
{
"daemon-child", 0 , arg_integer, &daemon_child,
"private argument, do not use", NULL
},
{ "ports", 'p', arg_string, &port_str,
"ports to listen to", "port" },
{ "read-only", 0, arg_flag, &readonly_flag,
"read-only operations", NULL },
#ifndef WIN32
{ "fuzz-file", 0, arg_string, &fuzz_file,
"Kadmin RPC body for fuzzing", "FILE" },
{ "fuzz-client", 0, arg_string, &fuzz_client_name,
"Client name for fuzzing", "PRINCIPAL" },
{ "fuzz-keytab", 0, arg_string, &fuzz_keytab_name,
"Keytab for fuzzing", "KEYTAB" },
{ "fuzz-server", 0, arg_string, &fuzz_admin_server,
"Name of kadmind self instance", "HOST:PORT" },
#endif
{ "help", 'h', arg_flag, &help_flag, NULL, NULL },
{ "version", 'v', arg_flag, &version_flag, NULL, NULL }
};
static int num_args = sizeof(args) / sizeof(args[0]);
krb5_context context;
static void
usage(int ret)
{
arg_printusage (args, num_args, NULL, "");
exit (ret);
}
static void *fuzz_thread(void *);
int
main(int argc, char **argv)
{
krb5_error_code ret;
char **files;
int optidx = 0;
int i;
krb5_log_facility *logfacility;
krb5_keytab keytab;
krb5_socket_t sfd = rk_INVALID_SOCKET;
setprogname(argv[0]);
if (getarg(args, num_args, argc, argv, &optidx)) {
warnx("error at argument `%s'", argv[optidx]);
usage(1);
}
if (help_flag)
usage (0);
if (version_flag) {
print_version(NULL);
exit(0);
}
if (detach_from_console > 0 && daemon_child == -1)
daemon_child = roken_detach_prep(argc, argv, "--daemon-child");
ret = krb5_init_context(&context);
if (ret)
errx (1, "krb5_init_context failed: %d", ret);
argc -= optidx;
argv += optidx;
if (argc != 0)
usage(1);
if (config_file == NULL) {
int aret;
aret = asprintf(&config_file, "%s/kdc.conf", hdb_db_dir(context));
if (aret == -1)
errx(1, "out of memory");
}
ret = krb5_prepend_config_files_default(config_file, &files);
if (ret)
krb5_err(context, 1, ret, "getting configuration files");
ret = krb5_set_config_files(context, files);
krb5_free_config_files(files);
if(ret)
krb5_err(context, 1, ret, "reading configuration files");
ret = krb5_openlog(context, "kadmind", &logfacility);
if (ret)
krb5_err(context, 1, ret, "krb5_openlog");
ret = krb5_set_warn_dest(context, logfacility);
if (ret)
krb5_err(context, 1, ret, "krb5_set_warn_dest");
ret = krb5_kt_register(context, &hdb_get_kt_ops);
if(ret)
krb5_err(context, 1, ret, "krb5_kt_register");
ret = krb5_kt_resolve(context, keytab_str, &keytab);
if(ret)
krb5_err(context, 1, ret, "krb5_kt_resolve");
kadm5_setup_passwd_quality_check (context, check_library, check_function);
for (i = 0; i < policy_libraries.num_strings; i++) {
ret = kadm5_add_passwd_quality_verifier(context,
policy_libraries.strings[i]);
if (ret)
krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier");
}
ret = kadm5_add_passwd_quality_verifier(context, NULL);
if (ret)
krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier");
if(debug_flag) {
int debug_port;
if(port_str == NULL)
debug_port = krb5_getportbyname (context, "kerberos-adm",
"tcp", 749);
else
debug_port = htons(atoi(port_str));
mini_inetd(debug_port, &sfd);
} else {
#ifdef _WIN32
start_server(context, port_str);
#else
struct sockaddr_storage __ss;
struct sockaddr *sa = (struct sockaddr *)&__ss;
socklen_t sa_size = sizeof(__ss);
/*
* Check if we are running inside inetd or not, if not, start
* our own server.
*/
if(roken_getsockname(STDIN_FILENO, sa, &sa_size) < 0 &&
rk_SOCK_ERRNO == ENOTSOCK) {
start_server(context, port_str);
}
#endif /* _WIN32 */
sfd = STDIN_FILENO;
socket_set_keepalive(sfd, 1);
}
if(realm)
krb5_set_default_realm(context, realm); /* XXX */
#ifndef WIN32
if (fuzz_file) {
HEIMDAL_THREAD_ID tid;
if (fuzz_admin_server == NULL)
errx(1, "If --fuzz-file is given then --fuzz-server must be too");
HEIMDAL_THREAD_create(&tid, fuzz_thread, NULL);
}
#endif
kadmind_loop(context, keytab, sfd, readonly_flag);
return 0;
}
#ifndef WIN32
static void *
fuzz_thread(void *arg)
{
kadm5_config_params conf;
krb5_error_code ret;
krb5_context context2;
krb5_storage *sp;
krb5_data reply;
void *server_handle = NULL;
int fd;
memset(&conf, 0, sizeof(conf));
conf.admin_server = fuzz_admin_server;
fd = open(fuzz_file, O_RDONLY);
if (fd < 0)
err(1, "Could not open fuzz file %s", fuzz_file);
sp = krb5_storage_from_fd(fd);
if (sp == NULL)
err(1, "Could not read fuzz file %s", fuzz_file);
(void) close(fd);
ret = krb5_init_context(&context2);
if (ret)
errx(1, "Fuzzing failed: krb5_init_context failed: %d", ret);
ret = kadm5_c_init_with_skey_ctx(context2,
fuzz_client_name,
fuzz_keytab_name,
fuzz_service_name ?
fuzz_service_name :
KADM5_ADMIN_SERVICE,
&conf,
0, /* struct_version */
0, /* api_version */
&server_handle);
if (ret)
errx(1, "Fuzzing failed: kadm5_c_init_with_skey_ctx failed: %d", ret);
ret = _kadm5_connect(server_handle, 1 /* want_write */);
if (ret)
errx(1, "Fuzzing failed: Could not connect to self (%s): "
"_kadm5_connect failed: %d", fuzz_admin_server, ret);
ret = _kadm5_client_send(server_handle, sp);
if (ret)
errx(1, "Fuzzing failed: Could not send request to self (%s): "
"_kadm5_client_send failed: %d", fuzz_admin_server, ret);
krb5_data_zero(&reply);
ret = _kadm5_client_recv(server_handle, &reply);
if (ret)
errx(1, "Fuzzing failed: Could not read reply from self (%s): "
"_kadm5_client_recv failed: %d", fuzz_admin_server, ret);
krb5_storage_free(sp);
krb5_data_free(&reply);
fprintf(stderr, "Fuzzed with %s", fuzz_file);
exit(0);
return NULL;
}
#endif
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