2 * Copyright (c) 1997 - 2008 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 static krb5_log_facility *log_facility;
39 const char *slave_stats_file;
40 const char *slave_time_missing = "2 min";
41 const char *slave_time_gone = "5 min";
43 static int time_before_missing;
44 static int time_before_gone;
46 const char *master_hostname;
49 make_signal_socket (krb5_context context)
51 #ifndef NO_UNIX_SOCKETS
52 struct sockaddr_un addr;
56 fn = kadm5_log_signal_socket(context);
58 fd = socket (AF_UNIX, SOCK_DGRAM, 0);
60 krb5_err (context, 1, errno, "socket AF_UNIX");
61 memset (&addr, 0, sizeof(addr));
62 addr.sun_family = AF_UNIX;
63 strlcpy (addr.sun_path, fn, sizeof(addr.sun_path));
64 unlink (addr.sun_path);
65 if (bind (fd, (struct sockaddr *)&addr, sizeof(addr)) < 0)
66 krb5_err (context, 1, errno, "bind %s", addr.sun_path);
69 struct addrinfo *ai = NULL;
72 kadm5_log_signal_socket_info(context, 1, &ai);
74 fd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
75 if (rk_IS_BAD_SOCKET(fd))
76 krb5_err (context, 1, rk_SOCK_ERRNO, "socket AF=%d", ai->ai_family);
78 if (rk_IS_SOCKET_ERROR( bind (fd, ai->ai_addr, ai->ai_addrlen) ))
79 krb5_err (context, 1, rk_SOCK_ERRNO, "bind");
85 make_listen_socket (krb5_context context, const char *port_str)
89 struct sockaddr_in addr;
91 fd = socket (AF_INET, SOCK_STREAM, 0);
92 if (rk_IS_BAD_SOCKET(fd))
93 krb5_err (context, 1, rk_SOCK_ERRNO, "socket AF_INET");
94 setsockopt (fd, SOL_SOCKET, SO_REUSEADDR, (void *)&one, sizeof(one));
95 memset (&addr, 0, sizeof(addr));
96 addr.sin_family = AF_INET;
99 addr.sin_port = krb5_getportbyname (context,
102 if (addr.sin_port == 0) {
106 port = strtol (port_str, &ptr, 10);
107 if (port == 0 && ptr == port_str)
108 krb5_errx (context, 1, "bad port `%s'", port_str);
109 addr.sin_port = htons(port);
112 addr.sin_port = krb5_getportbyname (context, IPROP_SERVICE,
115 if(bind(fd, (struct sockaddr *)&addr, sizeof(addr)) < 0)
116 krb5_err (context, 1, errno, "bind");
117 if (listen(fd, SOMAXCONN) < 0)
118 krb5_err (context, 1, errno, "listen");
123 make_listen6_socket (krb5_context context, const char *port_str)
127 struct sockaddr_in6 addr;
129 fd = socket (AF_INET6, SOCK_STREAM, 0);
130 if (rk_IS_BAD_SOCKET(fd))
131 krb5_err (context, 1, rk_SOCK_ERRNO, "socket AF_INET6");
132 setsockopt (fd, SOL_SOCKET, SO_REUSEADDR, (void *)&one, sizeof(one));
133 memset (&addr, 0, sizeof(addr));
134 addr.sin6_family = AF_INET6;
137 addr.sin6_port = krb5_getportbyname (context,
140 if (addr.sin6_port == 0) {
144 port = strtol (port_str, &ptr, 10);
145 if (port == 0 && ptr == port_str)
146 krb5_errx (context, 1, "bad port `%s'", port_str);
147 addr.sin6_port = htons(port);
150 addr.sin6_port = krb5_getportbyname (context, IPROP_SERVICE,
153 if(bind(fd, (struct sockaddr *)&addr, sizeof(addr)) < 0)
154 krb5_err (context, 1, errno, "bind6");
155 if (listen(fd, SOMAXCONN) < 0)
156 krb5_err (context, 1, errno, "listen6");
160 #ifndef _SOCKADDR_UNION
161 #define _SOCKADDR_UNION
162 union sockaddr_union {
164 struct sockaddr_in sin;
165 struct sockaddr_in6 sin6;
167 #endif /* _SOCKADDR_UNION */
171 union sockaddr_union addr;
173 krb5_auth_context ac;
177 #define SLAVE_F_DEAD 0x1
178 #define SLAVE_F_AYT 0x2
182 typedef struct slave slave;
185 check_acl (krb5_context context, const char *name)
191 char *slavefile = NULL;
193 if (asprintf(&slavefile, "%s/slaves", hdb_db_dir(context)) == -1
194 || slavefile == NULL)
195 errx(1, "out of memory");
197 fn = krb5_config_get_string_default(context,
204 fp = fopen (fn, "r");
208 while (fgets(buf, sizeof(buf), fp) != NULL) {
209 buf[strcspn(buf, "\r\n")] = '\0';
210 if (strcmp (buf, name) == 0) {
222 s->flags &= ~SLAVE_F_AYT;
223 s->seen = time(NULL);
227 slave_missing_p (slave *s)
229 if (time(NULL) > s->seen + time_before_missing)
235 slave_gone_p (slave *s)
237 if (time(NULL) > s->seen + time_before_gone)
243 slave_dead(krb5_context context, slave *s)
245 krb5_warnx(context, "slave %s dead", s->name);
247 if (!rk_IS_BAD_SOCKET(s->fd)) {
248 rk_closesocket (s->fd);
249 s->fd = rk_INVALID_SOCKET;
251 s->flags |= SLAVE_F_DEAD;
256 remove_slave (krb5_context context, slave *s, slave **root)
260 if (!rk_IS_BAD_SOCKET(s->fd))
261 rk_closesocket (s->fd);
265 krb5_auth_con_free (context, s->ac);
267 for (p = root; *p; p = &(*p)->next)
276 add_slave (krb5_context context, krb5_keytab keytab, slave **root,
279 krb5_principal server;
283 krb5_ticket *ticket = NULL;
286 s = malloc(sizeof(*s));
288 krb5_warnx (context, "add_slave: no memory");
294 addr_len = sizeof(s->addr.sin6);
295 s->fd = accept (fd, (struct sockaddr *)&s->addr.sa, &addr_len);
296 if (rk_IS_BAD_SOCKET(s->fd)) {
297 krb5_warn (context, rk_SOCK_ERRNO, "accept");
301 strlcpy(hostname, master_hostname, sizeof(hostname));
303 gethostname(hostname, sizeof(hostname));
305 ret = krb5_sname_to_principal (context, hostname, IPROP_NAME,
306 KRB5_NT_SRV_HST, &server);
308 krb5_warn (context, ret, "krb5_sname_to_principal");
312 ret = krb5_recvauth (context, &s->ac, &s->fd,
313 IPROP_VERSION, server, 0, keytab, &ticket);
314 krb5_free_principal (context, server);
316 krb5_warn (context, ret, "krb5_recvauth");
319 ret = krb5_unparse_name (context, ticket->client, &s->name);
320 krb5_free_ticket (context, ticket);
322 krb5_warn (context, ret, "krb5_unparse_name");
325 if (check_acl (context, s->name)) {
326 krb5_warnx (context, "%s not in acl", s->name);
334 if (strcmp(l->name, s->name) == 0)
339 if (l->flags & SLAVE_F_DEAD) {
340 remove_slave(context, l, root);
342 krb5_warnx (context, "second connection from %s", s->name);
348 krb5_warnx (context, "connection from %s", s->name);
357 remove_slave(context, s, root);
360 struct prop_context {
361 krb5_auth_context auth_context;
366 prop_one (krb5_context context, HDB *db, hdb_entry_ex *entry, void *v)
371 struct slave *s = (struct slave *)v;
373 ret = hdb_entry2value (context, &entry->entry, &data);
376 ret = krb5_data_realloc (&data, data.length + 4);
378 krb5_data_free (&data);
381 memmove ((char *)data.data + 4, data.data, data.length - 4);
382 sp = krb5_storage_from_data(&data);
384 krb5_data_free (&data);
387 krb5_store_int32(sp, ONE_PRINC);
388 krb5_storage_free(sp);
390 ret = krb5_write_priv_message (context, s->ac, &s->fd, &data);
391 krb5_data_free (&data);
396 send_complete (krb5_context context, slave *s,
397 const char *database, uint32_t current_version)
405 ret = hdb_create (context, &db, database);
407 krb5_err (context, 1, ret, "hdb_create: %s", database);
408 ret = db->hdb_open (context, db, O_RDONLY, 0);
410 krb5_err (context, 1, ret, "db->open");
412 sp = krb5_storage_from_mem (buf, 4);
414 krb5_errx (context, 1, "krb5_storage_from_mem");
415 krb5_store_int32 (sp, TELL_YOU_EVERYTHING);
416 krb5_storage_free (sp);
421 ret = krb5_write_priv_message(context, s->ac, &s->fd, &data);
424 krb5_warn (context, ret, "krb5_write_priv_message");
425 slave_dead(context, s);
429 ret = hdb_foreach (context, db, HDB_F_ADMIN_DATA, prop_one, s);
431 krb5_warn (context, ret, "hdb_foreach");
432 slave_dead(context, s);
436 (*db->hdb_close)(context, db);
437 (*db->hdb_destroy)(context, db);
439 sp = krb5_storage_from_mem (buf, 8);
441 krb5_errx (context, 1, "krb5_storage_from_mem");
442 krb5_store_int32 (sp, NOW_YOU_HAVE);
443 krb5_store_int32 (sp, current_version);
444 krb5_storage_free (sp);
448 s->version = current_version;
450 ret = krb5_write_priv_message(context, s->ac, &s->fd, &data);
452 slave_dead(context, s);
453 krb5_warn (context, ret, "krb5_write_priv_message");
463 send_are_you_there (krb5_context context, slave *s)
470 if (s->flags & (SLAVE_F_DEAD|SLAVE_F_AYT))
473 krb5_warnx(context, "slave %s missing, sending AYT", s->name);
475 s->flags |= SLAVE_F_AYT;
480 sp = krb5_storage_from_mem (buf, 4);
482 krb5_warnx (context, "are_you_there: krb5_data_alloc");
483 slave_dead(context, s);
486 krb5_store_int32 (sp, ARE_YOU_THERE);
487 krb5_storage_free (sp);
489 ret = krb5_write_priv_message(context, s->ac, &s->fd, &data);
492 krb5_warn (context, ret, "are_you_there: krb5_write_priv_message");
493 slave_dead(context, s);
501 send_diffs (krb5_context context, slave *s, int log_fd,
502 const char *database, uint32_t current_version)
513 if (s->version == current_version) {
514 krb5_warnx(context, "slave %s in sync already at version %ld",
515 s->name, (long)s->version);
519 if (s->flags & SLAVE_F_DEAD)
522 /* if slave is a fresh client, starting over */
523 if (s->version == 0) {
524 krb5_warnx(context, "sending complete log to fresh slave %s",
526 return send_complete (context, s, database, current_version);
529 sp = kadm5_log_goto_end (log_fd);
530 right = krb5_storage_seek(sp, 0, SEEK_CUR);
532 ret = kadm5_log_previous (context, sp, &ver, ×tamp, &op, &len);
534 krb5_err(context, 1, ret,
535 "send_diffs: failed to find previous entry");
536 left = krb5_storage_seek(sp, -16, SEEK_CUR);
537 if (ver == s->version)
539 if (ver == s->version + 1)
542 krb5_storage_free(sp);
544 "slave %s (version %lu) out of sync with master "
545 "(first version in log %lu), sending complete database",
546 s->name, (unsigned long)s->version, (unsigned long)ver);
547 return send_complete (context, s, database, current_version);
552 "syncing slave %s from version %lu to version %lu",
553 s->name, (unsigned long)s->version,
554 (unsigned long)current_version);
556 ret = krb5_data_alloc (&data, right - left + 4);
558 krb5_storage_free(sp);
559 krb5_warn (context, ret, "send_diffs: krb5_data_alloc");
560 slave_dead(context, s);
563 krb5_storage_read (sp, (char *)data.data + 4, data.length - 4);
564 krb5_storage_free(sp);
566 sp = krb5_storage_from_data (&data);
568 krb5_warnx (context, "send_diffs: krb5_storage_from_data");
569 slave_dead(context, s);
572 krb5_store_int32 (sp, FOR_YOU);
573 krb5_storage_free(sp);
575 ret = krb5_write_priv_message(context, s->ac, &s->fd, &data);
576 krb5_data_free(&data);
579 krb5_warn (context, ret, "send_diffs: krb5_write_priv_message");
580 slave_dead(context, s);
585 s->version = current_version;
591 process_msg (krb5_context context, slave *s, int log_fd,
592 const char *database, uint32_t current_version)
599 ret = krb5_read_priv_message(context, s->ac, &s->fd, &out);
601 krb5_warn (context, ret, "error reading message from %s", s->name);
605 sp = krb5_storage_from_mem (out.data, out.length);
607 krb5_warnx (context, "process_msg: no memory");
608 krb5_data_free (&out);
611 if (krb5_ret_int32 (sp, &tmp) != 0) {
612 krb5_warnx (context, "process_msg: client send too short command");
613 krb5_data_free (&out);
618 ret = krb5_ret_int32 (sp, &tmp);
620 krb5_warnx (context, "process_msg: client send too I_HAVE data");
623 /* new started slave that have old log */
624 if (s->version == 0 && tmp != 0) {
625 if (current_version < (uint32_t)tmp) {
626 krb5_warnx (context, "Slave %s (version %lu) have later version "
627 "the master (version %lu) OUT OF SYNC",
628 s->name, (unsigned long)tmp,
629 (unsigned long)current_version);
633 if ((uint32_t)tmp < s->version) {
634 krb5_warnx (context, "Slave claims to not have "
635 "version we already sent to it");
637 ret = send_diffs (context, s, log_fd, database, current_version);
645 krb5_warnx (context, "Ignoring command %d", tmp);
649 krb5_data_free (&out);
650 krb5_storage_free (sp);
657 #define SLAVE_NAME "Name"
658 #define SLAVE_ADDRESS "Address"
659 #define SLAVE_VERSION "Version"
660 #define SLAVE_STATUS "Status"
661 #define SLAVE_SEEN "Last Seen"
664 open_stats(krb5_context context)
666 char *statfile = NULL;
670 if (slave_stats_file)
671 fn = slave_stats_file;
673 asprintf(&statfile, "%s/slaves-stats", hdb_db_dir(context));
674 fn = krb5_config_get_string_default(context,
689 write_master_down(krb5_context context)
692 time_t t = time(NULL);
695 fp = open_stats(context);
698 krb5_format_time(context, t, str, sizeof(str), TRUE);
699 fprintf(fp, "master down at %s\n", str);
705 write_stats(krb5_context context, slave *slaves, uint32_t current_version)
709 time_t t = time(NULL);
712 fp = open_stats(context);
716 krb5_format_time(context, t, str, sizeof(str), TRUE);
717 fprintf(fp, "Status for slaves, last updated: %s\n\n", str);
719 fprintf(fp, "Master version: %lu\n\n", (unsigned long)current_version);
727 rtbl_add_column(tbl, SLAVE_NAME, 0);
728 rtbl_add_column(tbl, SLAVE_ADDRESS, 0);
729 rtbl_add_column(tbl, SLAVE_VERSION, RTBL_ALIGN_RIGHT);
730 rtbl_add_column(tbl, SLAVE_STATUS, 0);
731 rtbl_add_column(tbl, SLAVE_SEEN, 0);
733 rtbl_set_prefix(tbl, " ");
734 rtbl_set_column_prefix(tbl, SLAVE_NAME, "");
739 rtbl_add_column_entry(tbl, SLAVE_NAME, slaves->name);
740 ret = krb5_sockaddr2address (context,
741 (struct sockaddr*)&slaves->addr.sa, &addr);
743 krb5_print_address(&addr, str, sizeof(str), NULL);
744 krb5_free_address(context, &addr);
745 rtbl_add_column_entry(tbl, SLAVE_ADDRESS, str);
747 rtbl_add_column_entry(tbl, SLAVE_ADDRESS, "<unknown>");
749 snprintf(str, sizeof(str), "%u", (unsigned)slaves->version);
750 rtbl_add_column_entry(tbl, SLAVE_VERSION, str);
752 if (slaves->flags & SLAVE_F_DEAD)
753 rtbl_add_column_entry(tbl, SLAVE_STATUS, "Down");
755 rtbl_add_column_entry(tbl, SLAVE_STATUS, "Up");
757 ret = krb5_format_time(context, slaves->seen, str, sizeof(str), TRUE);
758 rtbl_add_column_entry(tbl, SLAVE_SEEN, str);
760 slaves = slaves->next;
763 rtbl_format(tbl, fp);
770 static char sHDB[] = "HDB:";
772 static int version_flag;
773 static int help_flag;
774 static char *keytab_str = sHDB;
775 static char *database;
776 static char *config_file;
777 static char *port_str;
778 #ifdef SUPPORT_DETACH
779 static int detach_from_console = 0;
782 static struct getargs args[] = {
783 { "config-file", 'c', arg_string, &config_file, NULL, NULL },
784 { "realm", 'r', arg_string, &realm, NULL, NULL },
785 { "keytab", 'k', arg_string, &keytab_str,
786 "keytab to get authentication from", "kspec" },
787 { "database", 'd', arg_string, &database, "database", "file"},
788 { "slave-stats-file", 0, arg_string, rk_UNCONST(&slave_stats_file),
789 "file for slave status information", "file"},
790 { "time-missing", 0, arg_string, rk_UNCONST(&slave_time_missing),
791 "time before slave is polled for presence", "time"},
792 { "time-gone", 0, arg_string, rk_UNCONST(&slave_time_gone),
793 "time of inactivity after which a slave is considered gone", "time"},
794 { "port", 0, arg_string, &port_str,
795 "port ipropd will listen to", "port"},
796 #ifdef SUPPORT_DETACH
797 { "detach", 0, arg_flag, &detach_from_console,
798 "detach from console", NULL },
800 { "hostname", 0, arg_string, rk_UNCONST(&master_hostname),
801 "hostname of master (if not same as hostname)", "hostname" },
802 { "version", 0, arg_flag, &version_flag, NULL, NULL },
803 { "help", 0, arg_flag, &help_flag, NULL, NULL }
805 static int num_args = sizeof(args) / sizeof(args[0]);
808 main(int argc, char **argv)
811 krb5_context context;
813 kadm5_server_context *server_context;
814 kadm5_config_params conf;
815 krb5_socket_t signal_fd, listen_fd, listen6_fd;
817 slave *slaves = NULL;
818 uint32_t current_version = 0, old_version = 0;
823 optidx = krb5_program_setup(&context, argc, argv, args, num_args, NULL);
826 krb5_std_usage(0, args, num_args);
834 if (config_file == NULL) {
835 asprintf(&config_file, "%s/kdc.conf", hdb_db_dir(context));
836 if (config_file == NULL)
837 errx(1, "out of memory");
840 ret = krb5_prepend_config_files_default(config_file, &files);
842 krb5_err(context, 1, ret, "getting configuration files");
844 ret = krb5_set_config_files(context, files);
845 krb5_free_config_files(files);
847 krb5_err(context, 1, ret, "reading configuration files");
849 time_before_gone = parse_time (slave_time_gone, "s");
850 if (time_before_gone < 0)
851 krb5_errx (context, 1, "couldn't parse time: %s", slave_time_gone);
852 time_before_missing = parse_time (slave_time_missing, "s");
853 if (time_before_missing < 0)
854 krb5_errx (context, 1, "couldn't parse time: %s", slave_time_missing);
856 #ifdef SUPPORT_DETACH
857 if (detach_from_console)
861 krb5_openlog (context, "ipropd-master", &log_facility);
862 krb5_set_warn_dest(context, log_facility);
864 ret = krb5_kt_register(context, &hdb_kt_ops);
866 krb5_err(context, 1, ret, "krb5_kt_register");
868 ret = krb5_kt_resolve(context, keytab_str, &keytab);
870 krb5_err(context, 1, ret, "krb5_kt_resolve: %s", keytab_str);
872 memset(&conf, 0, sizeof(conf));
874 conf.mask |= KADM5_CONFIG_REALM;
877 ret = kadm5_init_with_skey_ctx (context,
884 krb5_err (context, 1, ret, "kadm5_init_with_password_ctx");
886 server_context = (kadm5_server_context *)kadm_handle;
888 log_fd = open (server_context->log_context.log_file, O_RDONLY, 0);
890 krb5_err (context, 1, errno, "open %s",
891 server_context->log_context.log_file);
893 signal_fd = make_signal_socket (context);
894 listen_fd = make_listen_socket (context, port_str);
895 listen6_fd = make_listen6_socket (context, port_str);
897 kadm5_log_get_version_fd (log_fd, ¤t_version);
899 krb5_warnx(context, "ipropd-master started at version: %lu",
900 (unsigned long)current_version);
902 while(exit_flag == 0){
906 struct timeval to = {30, 0};
909 #ifndef NO_LIMIT_FD_SETSIZE
910 if (signal_fd >= FD_SETSIZE || listen_fd >= FD_SETSIZE ||
911 listen6_fd >= FD_SETSIZE)
912 krb5_errx (context, 1, "fd too large");
916 FD_SET(signal_fd, &readset);
917 max_fd = max(max_fd, signal_fd);
918 FD_SET(listen_fd, &readset);
919 max_fd = max(max_fd, listen_fd);
920 FD_SET(listen6_fd, &readset);
921 max_fd = max(max_fd, listen6_fd);
923 for (p = slaves; p != NULL; p = p->next) {
924 if (p->flags & SLAVE_F_DEAD)
926 FD_SET(p->fd, &readset);
927 max_fd = max(max_fd, p->fd);
930 ret = select (max_fd + 1,
931 &readset, NULL, NULL, &to);
936 krb5_err (context, 1, errno, "select");
940 old_version = current_version;
941 kadm5_log_get_version_fd (log_fd, ¤t_version);
943 if (current_version > old_version) {
945 "Missed a signal, updating slaves %lu to %lu",
946 (unsigned long)old_version,
947 (unsigned long)current_version);
948 for (p = slaves; p != NULL; p = p->next) {
949 if (p->flags & SLAVE_F_DEAD)
951 send_diffs (context, p, log_fd, database, current_version);
956 if (ret && FD_ISSET(signal_fd, &readset)) {
957 #ifndef NO_UNIX_SOCKETS
958 struct sockaddr_un peer_addr;
960 struct sockaddr_storage peer_addr;
962 socklen_t peer_len = sizeof(peer_addr);
964 if(recvfrom(signal_fd, (void *)&vers, sizeof(vers), 0,
965 (struct sockaddr *)&peer_addr, &peer_len) < 0) {
966 krb5_warn (context, errno, "recvfrom");
971 old_version = current_version;
972 kadm5_log_get_version_fd (log_fd, ¤t_version);
973 if (current_version > old_version) {
975 "Got a signal, updating slaves %lu to %lu",
976 (unsigned long)old_version,
977 (unsigned long)current_version);
978 for (p = slaves; p != NULL; p = p->next) {
979 if (p->flags & SLAVE_F_DEAD)
981 send_diffs (context, p, log_fd, database, current_version);
985 "Got a signal, but no update in log version %lu",
986 (unsigned long)current_version);
990 for(p = slaves; p != NULL; p = p->next) {
991 if (p->flags & SLAVE_F_DEAD)
993 if (ret && FD_ISSET(p->fd, &readset)) {
996 if(process_msg (context, p, log_fd, database, current_version))
997 slave_dead(context, p);
998 } else if (slave_gone_p (p))
999 slave_dead(context, p);
1000 else if (slave_missing_p (p))
1001 send_are_you_there (context, p);
1004 if (ret && FD_ISSET(listen6_fd, &readset)) {
1005 add_slave (context, keytab, &slaves, listen6_fd);
1009 if (ret && FD_ISSET(listen_fd, &readset)) {
1010 add_slave (context, keytab, &slaves, listen_fd);
1014 write_stats(context, slaves, current_version);
1017 if(exit_flag == SIGINT || exit_flag == SIGTERM)
1018 krb5_warnx(context, "%s terminated", getprogname());
1020 else if(exit_flag == SIGXCPU)
1021 krb5_warnx(context, "%s CPU time limit exceeded", getprogname());
1024 krb5_warnx(context, "%s unexpected exit reason: %ld",
1025 getprogname(), (long)exit_flag);
1027 write_master_down(context);