Database propagation client.
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@2850 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Johan Danielsson
258
kdc/hprop.c
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258
kdc/hprop.c
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/*
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* Copyright (c) 1997 Kungliga Tekniska H<>gskolan
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Kungliga Tekniska
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* H<>gskolan and its contributors.
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*
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* 4. 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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#include "hprop.h"
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RCSID("$Id$");
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int open_socket(const char *hostname)
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{
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int s;
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struct hostent *hp;
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struct sockaddr_in sin;
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s = socket(AF_INET, SOCK_STREAM, 0);
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if(s < 0){
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warn("socket");
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return -1;
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}
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hp = gethostbyname(hostname);
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if(hp == NULL){
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warnx("%s: %s", hostname, hstrerror(h_errno));
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close(s);
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return -1;
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}
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memset(&sin, 0, sizeof(sin));
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sin.sin_family = AF_INET;
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sin.sin_port = krb5_getportbyname ("hprop", "tcp", htons(4712));
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memcpy(&sin.sin_addr, hp->h_addr, hp->h_length);
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if(connect(s, (struct sockaddr*)&sin, sizeof(sin)) < 0){
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warn("connect");
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close(s);
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return -1;
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}
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return s;
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}
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struct prop_data{
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krb5_auth_context auth_context;
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int sock;
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};
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int hdb_entry2value(krb5_context, hdb_entry*, krb5_data*);
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krb5_error_code
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send_priv(krb5_context context, krb5_auth_context ac,
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krb5_data *data, int fd)
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{
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krb5_data packet;
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krb5_error_code ret;
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unsigned char net_len[4];
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ret = krb5_mk_priv (context,
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ac,
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data,
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&packet,
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NULL);
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if (ret)
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return ret;
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net_len[0] = (packet.length >> 24) & 0xff;
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net_len[1] = (packet.length >> 16) & 0xff;
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net_len[2] = (packet.length >> 8) & 0xff;
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net_len[3] = packet.length & 0xff;
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if (krb5_net_write (context, fd, net_len, 4) != 4)
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ret = errno;
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else if (krb5_net_write (context, fd, packet.data, packet.length) != packet.length)
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ret = errno;
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krb5_data_free(&packet);
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return ret;
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}
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krb5_error_code
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func(krb5_context context, HDB *db, hdb_entry *entry, void *appdata)
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{
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krb5_error_code ret;
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struct prop_data *pd = appdata;
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krb5_data data;
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ret = hdb_entry2value(context, entry, &data);
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if(ret) return ret;
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ret = send_priv(context, pd->auth_context, &data, pd->sock);
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krb5_data_free(&data);
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return ret;
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}
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static getarg_strings slaves;
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static int version_flag;
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static int help_flag;
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static char *ktname = HPROP_KEYTAB;
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struct getargs args[] = {
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#if 0
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{ "slave", 's', arg_strings, &slaves, "slave server", "host" },
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#endif
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{ "keytab", 'k', arg_string, &ktname, "keytab to use for authentication", "keytab" },
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{ "version", 0, arg_flag, &version_flag, NULL, NULL },
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{ "help", 'h', arg_flag, &help_flag, NULL, NULL}
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};
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static int num_args = sizeof(args) / sizeof(args[0]);
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void usage(int ret)
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{
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arg_printusage (args, num_args, "host ...");
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exit (ret);
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}
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int main(int argc, char **argv)
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{
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krb5_error_code ret;
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krb5_context context;
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krb5_auth_context ac;
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krb5_principal client;
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krb5_principal server;
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krb5_creds creds;
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krb5_ccache ccache;
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krb5_keytab keytab;
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int fd;
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HDB *db;
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krb5_get_init_creds_opt init_opts;
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krb5_preauthtype preauth = KRB5_PADATA_ENC_TIMESTAMP;
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int optind = 0;
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int i;
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set_progname(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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fprintf(stderr, "%s (%s)\n", __progname, heimdal_version);
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exit(0);
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}
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ret = krb5_init_context(&context);
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if(ret)
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exit(1);
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ret = hdb_open(context, &db, NULL, O_RDONLY, 0);
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if(ret) krb5_err(context, 1, ret, "hdb_open");
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ret = krb5_kt_resolve(context, ktname, &keytab);
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if(ret) krb5_err(context, 1, ret, "krb5_kt_resolve");
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ret = krb5_make_principal(context, &client, NULL, "kadmin", HPROP_NAME, NULL);
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if(ret) krb5_err(context, 1, ret, "krb5_make_principal");
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krb5_get_init_creds_opt_init(&init_opts);
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krb5_get_init_creds_opt_set_preauth_list(&init_opts, &preauth, 1);
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ret = krb5_get_init_creds_keytab(context, &creds, client, keytab, 0, NULL, &init_opts);
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if(ret) krb5_err(context, 1, ret, "krb5_get_init_creds");
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ret = krb5_kt_close(context, keytab);
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if(ret) krb5_err(context, 1, ret, "krb5_kt_close");
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ret = krb5_cc_gen_new(context, &mcc_ops, &ccache);
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if(ret) krb5_err(context, 1, ret, "krb5_cc_gen_new");
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ret = krb5_cc_initialize(context, ccache, client);
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if(ret) krb5_err(context, 1, ret, "krb5_cc_initialize");
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ret = krb5_cc_store_cred(context, ccache, &creds);
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if(ret) krb5_err(context, 1, ret, "krb5_cc_store_cred");
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for(i = optind; i < argc; i++){
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fd = open_socket(argv[i]);
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if(fd < 0)
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continue;
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ret = krb5_sname_to_principal(context, argv[i], HPROP_NAME, KRB5_NT_SRV_HST, &server);
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if(ret) {
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krb5_warn(context, ret, "krb5_sname_to_principal(%s)", argv[i]);
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close(fd);
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continue;
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}
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ac = NULL;
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ret = krb5_sendauth(context,
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&ac,
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&fd,
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HPROP_VERSION,
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NULL,
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server,
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AP_OPTS_MUTUAL_REQUIRED,
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NULL, /* in_data */
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NULL, /* in_creds */
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ccache,
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NULL,
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NULL,
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NULL);
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if(ret){
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krb5_warn(context, ret, "krb5_sendauth");
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close(fd);
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continue;
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}
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{
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struct prop_data pd;
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pd.auth_context = ac;
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pd.sock = fd;
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ret = hdb_foreach(context, db, func, &pd);
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}
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if(ret)
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krb5_warn(context, ret, "krb5_sendauth");
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else {
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krb5_data data;
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data.data = NULL;
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data.length = 0;
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ret = send_priv(context, ac, &data, fd);
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}
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if(ret) krb5_warn(context, ret, "send_priv");
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krb5_auth_con_free(context, ac);
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close(fd);
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}
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exit(0);
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}
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