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.
749 lines
20 KiB
C
749 lines
20 KiB
C
/*
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* Copyright (c) 1997 - 2008 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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#include "iprop.h"
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RCSID("$Id$");
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static const char *config_name = "ipropd-slave";
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static krb5_log_facility *log_facility;
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static char five_min[] = "5 min";
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static char *server_time_lost = five_min;
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static int time_before_lost;
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const char *slave_str = NULL;
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static int
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connect_to_master (krb5_context context, const char *master,
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const char *port_str)
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{
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char port[NI_MAXSERV];
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struct addrinfo *ai, *a;
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struct addrinfo hints;
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int error;
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int s = -1;
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memset (&hints, 0, sizeof(hints));
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hints.ai_socktype = SOCK_STREAM;
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if (port_str == NULL) {
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snprintf(port, sizeof(port), "%u", IPROP_PORT);
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port_str = port;
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}
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error = getaddrinfo (master, port_str, &hints, &ai);
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if (error) {
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krb5_warnx(context, "Failed to get address of to %s: %s",
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master, gai_strerror(error));
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return -1;
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}
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for (a = ai; a != NULL; a = a->ai_next) {
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char node[NI_MAXHOST];
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error = getnameinfo(a->ai_addr, a->ai_addrlen,
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node, sizeof(node), NULL, 0, NI_NUMERICHOST);
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if (error)
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strlcpy(node, "[unknown-addr]", sizeof(node));
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s = socket (a->ai_family, a->ai_socktype, a->ai_protocol);
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if (s < 0)
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continue;
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if (connect (s, a->ai_addr, a->ai_addrlen) < 0) {
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krb5_warn(context, errno, "connection failed to %s[%s]",
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master, node);
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close (s);
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continue;
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}
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krb5_warnx(context, "connection successful "
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"to master: %s[%s]", master, node);
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break;
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}
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freeaddrinfo (ai);
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if (a == NULL)
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return -1;
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return s;
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}
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static void
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get_creds(krb5_context context, const char *keytab_str,
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krb5_ccache *cache, const char *serverhost)
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{
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krb5_keytab keytab;
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krb5_principal client;
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krb5_error_code ret;
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krb5_get_init_creds_opt *init_opts;
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krb5_creds creds;
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char *server;
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char keytab_buf[256];
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|
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if (keytab_str == NULL) {
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ret = krb5_kt_default_name (context, keytab_buf, sizeof(keytab_buf));
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if (ret)
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krb5_err (context, 1, ret, "krb5_kt_default_name");
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keytab_str = keytab_buf;
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}
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ret = krb5_kt_resolve(context, keytab_str, &keytab);
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if(ret)
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krb5_err(context, 1, ret, "%s", keytab_str);
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|
|
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ret = krb5_sname_to_principal (context, slave_str, IPROP_NAME,
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KRB5_NT_SRV_HST, &client);
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if (ret) krb5_err(context, 1, ret, "krb5_sname_to_principal");
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ret = krb5_get_init_creds_opt_alloc(context, &init_opts);
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if (ret) krb5_err(context, 1, ret, "krb5_get_init_creds_opt_alloc");
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asprintf (&server, "%s/%s", IPROP_NAME, serverhost);
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if (server == NULL)
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krb5_errx (context, 1, "malloc: no memory");
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ret = krb5_get_init_creds_keytab(context, &creds, client, keytab,
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0, server, init_opts);
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free (server);
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krb5_get_init_creds_opt_free(context, 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_new_unique(context, krb5_cc_type_memory, NULL, cache);
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if(ret) krb5_err(context, 1, ret, "krb5_cc_new_unique");
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ret = krb5_cc_initialize(context, *cache, 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, *cache, &creds);
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if(ret) krb5_err(context, 1, ret, "krb5_cc_store_cred");
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krb5_free_cred_contents(context, &creds);
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krb5_free_principal(context, client);
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}
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static krb5_error_code
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ihave (krb5_context context, krb5_auth_context auth_context,
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int fd, uint32_t version)
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{
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int ret;
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u_char buf[8];
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krb5_storage *sp;
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krb5_data data;
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sp = krb5_storage_from_mem (buf, 8);
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krb5_store_int32 (sp, I_HAVE);
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krb5_store_int32 (sp, version);
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krb5_storage_free (sp);
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data.length = 8;
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data.data = buf;
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ret = krb5_write_priv_message(context, auth_context, &fd, &data);
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if (ret)
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krb5_warn (context, ret, "krb5_write_message");
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return ret;
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}
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static void
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receive_loop (krb5_context context,
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krb5_storage *sp,
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kadm5_server_context *server_context)
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{
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int ret;
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off_t left, right;
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void *buf;
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int32_t vers, vers2;
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ssize_t sret;
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/*
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* Seek to the current version of the local database.
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*/
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do {
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int32_t len, timestamp, tmp;
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enum kadm_ops op;
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if(krb5_ret_int32 (sp, &vers) != 0)
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return;
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krb5_ret_int32 (sp, ×tamp);
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krb5_ret_int32 (sp, &tmp);
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op = tmp;
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krb5_ret_int32 (sp, &len);
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if ((uint32_t)vers <= server_context->log_context.version)
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krb5_storage_seek(sp, len + 8, SEEK_CUR);
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} while((uint32_t)vers <= server_context->log_context.version);
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/*
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* Read up rest of the entires into the memory...
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*/
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left = krb5_storage_seek (sp, -16, SEEK_CUR);
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right = krb5_storage_seek (sp, 0, SEEK_END);
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buf = malloc (right - left);
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if (buf == NULL && (right - left) != 0)
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krb5_errx (context, 1, "malloc: no memory");
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/*
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* ...and then write them out to the on-disk log.
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*/
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krb5_storage_seek (sp, left, SEEK_SET);
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krb5_storage_read (sp, buf, right - left);
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sret = write (server_context->log_context.log_fd, buf, right-left);
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if (sret != right - left)
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krb5_err(context, 1, errno, "Failed to write log to disk");
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ret = fsync (server_context->log_context.log_fd);
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if (ret)
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krb5_err(context, 1, errno, "Failed to sync log to disk");
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free (buf);
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/*
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* Go back to the startpoint and start to commit the entires to
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* the database.
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*/
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krb5_storage_seek (sp, left, SEEK_SET);
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for(;;) {
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int32_t len, len2, timestamp, tmp;
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|
off_t cur, cur2;
|
|
enum kadm_ops op;
|
|
|
|
if(krb5_ret_int32 (sp, &vers) != 0)
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break;
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ret = krb5_ret_int32 (sp, ×tamp);
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if (ret) krb5_errx(context, 1, "entry %ld: too short", (long)vers);
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ret = krb5_ret_int32 (sp, &tmp);
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if (ret) krb5_errx(context, 1, "entry %ld: too short", (long)vers);
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op = tmp;
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ret = krb5_ret_int32 (sp, &len);
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if (ret) krb5_errx(context, 1, "entry %ld: too short", (long)vers);
|
|
if (len < 0)
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|
krb5_errx(context, 1, "log is corrupted, "
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|
"negative length of entry version %ld: %ld",
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(long)vers, (long)len);
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|
cur = krb5_storage_seek(sp, 0, SEEK_CUR);
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|
|
|
krb5_warnx (context, "replaying entry %d", (int)vers);
|
|
|
|
ret = kadm5_log_replay (server_context,
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op, vers, len, sp);
|
|
if (ret) {
|
|
const char *s = krb5_get_error_message(server_context->context, ret);
|
|
krb5_warnx (context,
|
|
"kadm5_log_replay: %ld. Lost entry entry, "
|
|
"Database out of sync ?: %s (%d)",
|
|
(long)vers, s ? s : "unknown error", ret);
|
|
krb5_free_error_message(context, s);
|
|
}
|
|
|
|
{
|
|
/*
|
|
* Make sure the krb5_log_replay does the right thing wrt
|
|
* reading out data from the sp.
|
|
*/
|
|
cur2 = krb5_storage_seek(sp, 0, SEEK_CUR);
|
|
if (cur + len != cur2)
|
|
krb5_errx(context, 1,
|
|
"kadm5_log_reply version: %ld didn't read the whole entry",
|
|
(long)vers);
|
|
}
|
|
|
|
if (krb5_ret_int32 (sp, &len2) != 0)
|
|
krb5_errx(context, 1, "entry %ld: postamble too short", (long)vers);
|
|
if(krb5_ret_int32 (sp, &vers2) != 0)
|
|
krb5_errx(context, 1, "entry %ld: postamble too short", (long)vers);
|
|
|
|
if (len != len2)
|
|
krb5_errx(context, 1, "entry %ld: len != len2", (long)vers);
|
|
if (vers != vers2)
|
|
krb5_errx(context, 1, "entry %ld: vers != vers2", (long)vers);
|
|
}
|
|
|
|
/*
|
|
* Update version
|
|
*/
|
|
|
|
server_context->log_context.version = vers;
|
|
}
|
|
|
|
static void
|
|
receive (krb5_context context,
|
|
krb5_storage *sp,
|
|
kadm5_server_context *server_context)
|
|
{
|
|
int ret;
|
|
|
|
ret = server_context->db->hdb_open(context,
|
|
server_context->db,
|
|
O_RDWR | O_CREAT, 0600);
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "db->open");
|
|
|
|
receive_loop (context, sp, server_context);
|
|
|
|
ret = server_context->db->hdb_close (context, server_context->db);
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "db->close");
|
|
}
|
|
|
|
static void
|
|
send_im_here (krb5_context context, int fd,
|
|
krb5_auth_context auth_context)
|
|
{
|
|
krb5_storage *sp;
|
|
krb5_data data;
|
|
int ret;
|
|
|
|
ret = krb5_data_alloc (&data, 4);
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "send_im_here");
|
|
|
|
sp = krb5_storage_from_data (&data);
|
|
if (sp == NULL)
|
|
krb5_errx (context, 1, "krb5_storage_from_data");
|
|
krb5_store_int32(sp, I_AM_HERE);
|
|
krb5_storage_free(sp);
|
|
|
|
ret = krb5_write_priv_message(context, auth_context, &fd, &data);
|
|
krb5_data_free(&data);
|
|
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "krb5_write_priv_message");
|
|
}
|
|
|
|
static krb5_error_code
|
|
receive_everything (krb5_context context, int fd,
|
|
kadm5_server_context *server_context,
|
|
krb5_auth_context auth_context)
|
|
{
|
|
int ret;
|
|
krb5_data data;
|
|
int32_t vno = 0;
|
|
int32_t opcode;
|
|
krb5_storage *sp;
|
|
|
|
char *dbname;
|
|
HDB *mydb;
|
|
|
|
krb5_warnx(context, "receive complete database");
|
|
|
|
asprintf(&dbname, "%s-NEW", server_context->db->hdb_name);
|
|
ret = hdb_create(context, &mydb, dbname);
|
|
if(ret)
|
|
krb5_err(context,1, ret, "hdb_create");
|
|
free(dbname);
|
|
|
|
ret = hdb_set_master_keyfile (context,
|
|
mydb, server_context->config.stash_file);
|
|
if(ret)
|
|
krb5_err(context,1, ret, "hdb_set_master_keyfile");
|
|
|
|
/* I really want to use O_EXCL here, but given that I can't easily clean
|
|
up on error, I won't */
|
|
ret = mydb->hdb_open(context, mydb, O_RDWR | O_CREAT | O_TRUNC, 0600);
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "db->open");
|
|
|
|
sp = NULL;
|
|
do {
|
|
ret = krb5_read_priv_message(context, auth_context, &fd, &data);
|
|
|
|
if (ret) {
|
|
krb5_warn (context, ret, "krb5_read_priv_message");
|
|
goto cleanup;
|
|
}
|
|
|
|
sp = krb5_storage_from_data (&data);
|
|
if (sp == NULL)
|
|
krb5_errx (context, 1, "krb5_storage_from_data");
|
|
krb5_ret_int32 (sp, &opcode);
|
|
if (opcode == ONE_PRINC) {
|
|
krb5_data fake_data;
|
|
hdb_entry_ex entry;
|
|
|
|
krb5_storage_free(sp);
|
|
|
|
fake_data.data = (char *)data.data + 4;
|
|
fake_data.length = data.length - 4;
|
|
|
|
memset(&entry, 0, sizeof(entry));
|
|
|
|
ret = hdb_value2entry (context, &fake_data, &entry.entry);
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "hdb_value2entry");
|
|
ret = mydb->hdb_store(server_context->context,
|
|
mydb,
|
|
0, &entry);
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "hdb_store");
|
|
|
|
hdb_free_entry (context, &entry);
|
|
krb5_data_free (&data);
|
|
} else if (opcode == NOW_YOU_HAVE)
|
|
;
|
|
else
|
|
krb5_errx (context, 1, "strange opcode %d", opcode);
|
|
} while (opcode == ONE_PRINC);
|
|
|
|
if (opcode != NOW_YOU_HAVE)
|
|
krb5_errx (context, 1, "receive_everything: strange %d", opcode);
|
|
|
|
krb5_ret_int32 (sp, &vno);
|
|
krb5_storage_free(sp);
|
|
|
|
ret = kadm5_log_reinit (server_context);
|
|
if (ret)
|
|
krb5_err(context, 1, ret, "kadm5_log_reinit");
|
|
|
|
ret = kadm5_log_set_version (server_context, vno - 1);
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "kadm5_log_set_version");
|
|
|
|
ret = kadm5_log_nop (server_context);
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "kadm5_log_nop");
|
|
|
|
ret = mydb->hdb_rename (context, mydb, server_context->db->hdb_name);
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "db->rename");
|
|
|
|
cleanup:
|
|
krb5_data_free (&data);
|
|
|
|
ret = mydb->hdb_close (context, mydb);
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "db->close");
|
|
|
|
ret = mydb->hdb_destroy (context, mydb);
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "db->destroy");
|
|
|
|
krb5_warnx(context, "receive complete database, version %ld", (long)vno);
|
|
return ret;
|
|
}
|
|
|
|
static char *config_file;
|
|
static char *realm;
|
|
static int version_flag;
|
|
static int help_flag;
|
|
static char *keytab_str;
|
|
static char *port_str;
|
|
#ifdef SUPPORT_DETACH
|
|
static int detach_from_console = 0;
|
|
#endif
|
|
|
|
static struct getargs args[] = {
|
|
{ "config-file", 'c', arg_string, &config_file, NULL, NULL },
|
|
{ "realm", 'r', arg_string, &realm, NULL, NULL },
|
|
{ "keytab", 'k', arg_string, &keytab_str,
|
|
"keytab to get authentication from", "kspec" },
|
|
{ "time-lost", 0, arg_string, &server_time_lost,
|
|
"time before server is considered lost", "time" },
|
|
{ "port", 0, arg_string, &port_str,
|
|
"port ipropd-slave will connect to", "port"},
|
|
#ifdef SUPPORT_DETACH
|
|
{ "detach", 0, arg_flag, &detach_from_console,
|
|
"detach from console", NULL },
|
|
#endif
|
|
{ "hostname", 0, arg_string, rk_UNCONST(&slave_str),
|
|
"hostname of slave (if not same as hostname)", "hostname" },
|
|
{ "version", 0, arg_flag, &version_flag, NULL, NULL },
|
|
{ "help", 0, arg_flag, &help_flag, NULL, NULL }
|
|
};
|
|
|
|
static int num_args = sizeof(args) / sizeof(args[0]);
|
|
|
|
static void
|
|
usage(int status)
|
|
{
|
|
arg_printusage(args, num_args, NULL, "master");
|
|
exit(status);
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
krb5_error_code ret;
|
|
krb5_context context;
|
|
krb5_auth_context auth_context;
|
|
void *kadm_handle;
|
|
kadm5_server_context *server_context;
|
|
kadm5_config_params conf;
|
|
int master_fd;
|
|
krb5_ccache ccache;
|
|
krb5_principal server;
|
|
char **files;
|
|
int optidx = 0;
|
|
time_t reconnect_min;
|
|
time_t backoff;
|
|
time_t reconnect_max;
|
|
time_t reconnect;
|
|
time_t before = 0;
|
|
|
|
const char *master;
|
|
|
|
setprogname(argv[0]);
|
|
|
|
if(getarg(args, num_args, argc, argv, &optidx))
|
|
usage(1);
|
|
|
|
if(help_flag)
|
|
usage(0);
|
|
if(version_flag) {
|
|
print_version(NULL);
|
|
exit(0);
|
|
}
|
|
|
|
ret = krb5_init_context(&context);
|
|
if (ret)
|
|
errx (1, "krb5_init_context failed: %d", ret);
|
|
|
|
setup_signal();
|
|
|
|
if (config_file == NULL) {
|
|
if (asprintf(&config_file, "%s/kdc.conf", hdb_db_dir(context)) == -1
|
|
|| config_file == NULL)
|
|
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");
|
|
|
|
argc -= optidx;
|
|
argv += optidx;
|
|
|
|
if (argc != 1)
|
|
usage(1);
|
|
|
|
master = argv[0];
|
|
|
|
#ifdef SUPPORT_DETACH
|
|
if (detach_from_console)
|
|
daemon(0, 0);
|
|
#endif
|
|
pidfile (NULL);
|
|
krb5_openlog (context, "ipropd-slave", &log_facility);
|
|
krb5_set_warn_dest(context, log_facility);
|
|
|
|
ret = krb5_kt_register(context, &hdb_kt_ops);
|
|
if(ret)
|
|
krb5_err(context, 1, ret, "krb5_kt_register");
|
|
|
|
time_before_lost = parse_time (server_time_lost, "s");
|
|
if (time_before_lost < 0)
|
|
krb5_errx (context, 1, "couldn't parse time: %s", server_time_lost);
|
|
|
|
memset(&conf, 0, sizeof(conf));
|
|
if(realm) {
|
|
conf.mask |= KADM5_CONFIG_REALM;
|
|
conf.realm = realm;
|
|
}
|
|
ret = kadm5_init_with_password_ctx (context,
|
|
KADM5_ADMIN_SERVICE,
|
|
NULL,
|
|
KADM5_ADMIN_SERVICE,
|
|
&conf, 0, 0,
|
|
&kadm_handle);
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "kadm5_init_with_password_ctx");
|
|
|
|
server_context = (kadm5_server_context *)kadm_handle;
|
|
|
|
ret = kadm5_log_init (server_context);
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "kadm5_log_init");
|
|
|
|
get_creds(context, keytab_str, &ccache, master);
|
|
|
|
ret = krb5_sname_to_principal (context, master, IPROP_NAME,
|
|
KRB5_NT_SRV_HST, &server);
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "krb5_sname_to_principal");
|
|
|
|
auth_context = NULL;
|
|
master_fd = -1;
|
|
|
|
krb5_appdefault_time(context, config_name, NULL, "reconnect-min",
|
|
10, &reconnect_min);
|
|
krb5_appdefault_time(context, config_name, NULL, "reconnect-max",
|
|
300, &reconnect_max);
|
|
krb5_appdefault_time(context, config_name, NULL, "reconnect-backoff",
|
|
10, &backoff);
|
|
reconnect = reconnect_min;
|
|
|
|
while (!exit_flag) {
|
|
time_t now, elapsed;
|
|
int connected = FALSE;
|
|
|
|
now = time(NULL);
|
|
elapsed = now - before;
|
|
|
|
if (elapsed < reconnect) {
|
|
time_t left = reconnect - elapsed;
|
|
krb5_warnx(context, "sleeping %d seconds before "
|
|
"retrying to connect", (int)left);
|
|
sleep(left);
|
|
}
|
|
before = now;
|
|
|
|
master_fd = connect_to_master (context, master, port_str);
|
|
if (master_fd < 0)
|
|
goto retry;
|
|
|
|
reconnect = reconnect_min;
|
|
|
|
if (auth_context) {
|
|
krb5_auth_con_free(context, auth_context);
|
|
auth_context = NULL;
|
|
krb5_cc_destroy(context, ccache);
|
|
get_creds(context, keytab_str, &ccache, master);
|
|
}
|
|
ret = krb5_sendauth (context, &auth_context, &master_fd,
|
|
IPROP_VERSION, NULL, server,
|
|
AP_OPTS_MUTUAL_REQUIRED, NULL, NULL,
|
|
ccache, NULL, NULL, NULL);
|
|
if (ret) {
|
|
krb5_warn (context, ret, "krb5_sendauth");
|
|
goto retry;
|
|
}
|
|
|
|
krb5_warnx(context, "ipropd-slave started at version: %ld",
|
|
(long)server_context->log_context.version);
|
|
|
|
ret = ihave (context, auth_context, master_fd,
|
|
server_context->log_context.version);
|
|
if (ret)
|
|
goto retry;
|
|
|
|
connected = TRUE;
|
|
|
|
while (connected && !exit_flag) {
|
|
krb5_data out;
|
|
krb5_storage *sp;
|
|
int32_t tmp;
|
|
fd_set readset;
|
|
struct timeval to;
|
|
|
|
#ifndef NO_LIMIT_FD_SETSIZE
|
|
if (master_fd >= FD_SETSIZE)
|
|
krb5_errx (context, 1, "fd too large");
|
|
#endif
|
|
|
|
FD_ZERO(&readset);
|
|
FD_SET(master_fd, &readset);
|
|
|
|
to.tv_sec = time_before_lost;
|
|
to.tv_usec = 0;
|
|
|
|
ret = select (master_fd + 1,
|
|
&readset, NULL, NULL, &to);
|
|
if (ret < 0) {
|
|
if (errno == EINTR)
|
|
continue;
|
|
else
|
|
krb5_err (context, 1, errno, "select");
|
|
}
|
|
if (ret == 0)
|
|
krb5_errx (context, 1, "server didn't send a message "
|
|
"in %d seconds", time_before_lost);
|
|
|
|
ret = krb5_read_priv_message(context, auth_context, &master_fd, &out);
|
|
if (ret) {
|
|
krb5_warn (context, ret, "krb5_read_priv_message");
|
|
connected = FALSE;
|
|
continue;
|
|
}
|
|
|
|
sp = krb5_storage_from_mem (out.data, out.length);
|
|
krb5_ret_int32 (sp, &tmp);
|
|
switch (tmp) {
|
|
case FOR_YOU :
|
|
receive (context, sp, server_context);
|
|
ret = ihave (context, auth_context, master_fd,
|
|
server_context->log_context.version);
|
|
if (ret)
|
|
connected = FALSE;
|
|
break;
|
|
case TELL_YOU_EVERYTHING :
|
|
ret = receive_everything (context, master_fd, server_context,
|
|
auth_context);
|
|
if (ret)
|
|
connected = FALSE;
|
|
break;
|
|
case ARE_YOU_THERE :
|
|
send_im_here (context, master_fd, auth_context);
|
|
break;
|
|
case NOW_YOU_HAVE :
|
|
case I_HAVE :
|
|
case ONE_PRINC :
|
|
case I_AM_HERE :
|
|
default :
|
|
krb5_warnx (context, "Ignoring command %d", tmp);
|
|
break;
|
|
}
|
|
krb5_storage_free (sp);
|
|
krb5_data_free (&out);
|
|
|
|
}
|
|
retry:
|
|
if (connected == FALSE)
|
|
krb5_warnx (context, "disconnected for server");
|
|
if (exit_flag)
|
|
krb5_warnx (context, "got an exit signal");
|
|
|
|
if (master_fd >= 0)
|
|
close(master_fd);
|
|
|
|
reconnect += backoff;
|
|
if (reconnect > reconnect_max)
|
|
reconnect = reconnect_max;
|
|
}
|
|
|
|
if (0);
|
|
#ifndef NO_SIGXCPU
|
|
else if(exit_flag == SIGXCPU)
|
|
krb5_warnx(context, "%s CPU time limit exceeded", getprogname());
|
|
#endif
|
|
else if(exit_flag == SIGINT || exit_flag == SIGTERM)
|
|
krb5_warnx(context, "%s terminated", getprogname());
|
|
else
|
|
krb5_warnx(context, "%s unexpected exit reason: %ld",
|
|
getprogname(), (long)exit_flag);
|
|
|
|
return 0;
|
|
}
|