1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) 1995-2011 Index Data
3 * See the file LICENSE for details.
8 * \brief Implements GFS logic
28 #include <sys/types.h>
41 #include <libxml/parser.h>
42 #include <libxml/tree.h>
43 #include <libxml/xinclude.h>
54 #include <yaz/comstack.h>
55 #include <yaz/tcpip.h>
56 #include <yaz/options.h>
57 #include <yaz/errno.h>
59 #include <yaz/xmosi.h>
64 #include <yaz/statserv.h>
65 #include <yaz/daemon.h>
66 #include <yaz/yaz-iconv.h>
68 static IOCHAN pListener = NULL;
70 static char gfs_root_dir[FILENAME_MAX+1];
71 static struct gfs_server *gfs_server_list = 0;
72 static struct gfs_listen *gfs_listen_list = 0;
73 static NMEM gfs_nmem = 0;
75 static char *me = "statserver"; /* log prefix */
76 static char *programname="statserver"; /* full program name */
78 DWORD current_control_tls;
79 static int init_control_tls = 0;
80 #elif YAZ_POSIX_THREADS
81 static pthread_key_t current_control_tls;
82 static int init_control_tls = 0;
84 static statserv_options_block *current_control_block = 0;
90 #define STAT_DEFAULT_LOG_LEVEL "server,session,request"
92 int check_options(int argc, char **argv);
93 statserv_options_block control_block = {
95 0, /* threaded mode */
96 0, /* one shot (single session) */
98 "", /* diagnostic output to stderr */
99 "tcp:@:9999", /* default listener port */
100 PROTO_Z3950, /* default application protocol */
101 900, /* idle timeout (seconds) */
102 1024*1024, /* maximum PDU size (approx.) to allow */
103 "default-config", /* configuration name to pass to backend */
104 "", /* set user id */
105 0, /* bend_start handler */
106 0, /* bend_stop handler */
107 check_options, /* Default routine, for checking the run-time arguments */
110 0, /* default value for inet deamon */
111 0, /* handle (for service, etc) */
112 0, /* bend_init handle */
113 0, /* bend_close handle */
115 "Z39.50 Server", /* NT Service Name */
116 "Server", /* NT application Name */
117 "", /* NT Service Dependencies */
118 "Z39.50 Server", /* NT Service Display Name */
120 0, /* SOAP handlers */
122 0, /* background daemon */
123 "", /* SSL certificate filename */
124 "", /* XML config filename */
128 static int max_sessions = 0;
130 static int logbits_set = 0;
131 static int log_session = 0; /* one-line logs for session */
132 static int log_sessiondetail = 0; /* more detailed stuff */
133 static int log_server = 0;
135 /** get_logbits sets global loglevel bits */
136 static void get_logbits(int force)
137 { /* needs to be called after parsing cmd-line args that can set loglevels!*/
138 if (force || !logbits_set)
141 log_session = yaz_log_module_level("session");
142 log_sessiondetail = yaz_log_module_level("sessiondetail");
143 log_server = yaz_log_module_level("server");
148 static int add_listener(char *where, int listen_id);
151 static xmlDocPtr xml_config_doc = 0;
155 static xmlNodePtr xml_config_get_root(void)
160 ptr = xmlDocGetRootElement(xml_config_doc);
161 if (!ptr || ptr->type != XML_ELEMENT_NODE ||
162 strcmp((const char *) ptr->name, "yazgfs"))
164 yaz_log(YLOG_WARN, "Bad/missing root element for config %s",
165 control_block.xml_config);
175 static char *nmem_dup_xml_content(NMEM n, xmlNodePtr ptr)
179 int len = 1; /* start with 1, because of trailing 0 */
181 int first = 1; /* whitespace lead flag .. */
182 /* determine length */
183 for (p = ptr; p; p = p->next)
185 if (p->type == XML_TEXT_NODE)
186 len += xmlStrlen(p->content);
188 /* now allocate for the string */
189 str = (unsigned char *) nmem_malloc(n, len);
190 *str = '\0'; /* so we can use strcat */
191 for (p = ptr; p; p = p->next)
193 if (p->type == XML_TEXT_NODE)
198 while(*cp && yaz_isspace(*cp))
201 first = 0; /* reset if we got non-whitespace out */
203 strcat((char *)str, (const char *)cp); /* append */
206 /* remove trailing whitespace */
207 cp = strlen((const char *)str) + str;
208 while (cp != str && yaz_isspace(cp[-1]))
211 /* return resulting string */
217 static struct gfs_server * gfs_server_new(const char *id)
219 struct gfs_server *n = (struct gfs_server *)
220 nmem_malloc(gfs_nmem, sizeof(*n));
221 memcpy(&n->cb, &control_block, sizeof(control_block));
225 n->cql_transform = 0;
226 n->ccl_transform = 0;
227 n->server_node_ptr = 0;
231 n->id = nmem_strdup_null(gfs_nmem, id);
232 n->retrieval = yaz_retrieval_create();
238 static struct gfs_listen * gfs_listen_new(const char *id,
241 struct gfs_listen *n = (struct gfs_listen *)
242 nmem_malloc(gfs_nmem, sizeof(*n));
244 n->id = nmem_strdup(gfs_nmem, id);
248 n->address = nmem_strdup(gfs_nmem, address);
253 static void gfs_server_chdir(struct gfs_server *gfs)
257 if (chdir(gfs_root_dir))
258 yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s", gfs_root_dir);
262 if (chdir(gfs->directory))
263 yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s",
268 int control_association(association *assoc, const char *host, int force_open)
270 char vhost[128], *cp;
273 strncpy(vhost, host, 127);
275 cp = strchr(vhost, ':');
281 if (control_block.xml_config[0])
283 struct gfs_server *gfs;
284 for (gfs = gfs_server_list; gfs; gfs = gfs->next)
286 int listen_match = 0;
288 if ( !gfs->host || (host && gfs->host && !strcmp(host, gfs->host)))
290 if (!gfs->listen_ref ||
291 gfs->listen_ref == assoc->client_chan->chan_id)
293 if (listen_match && host_match)
296 (assoc->last_control != &gfs->cb && assoc->backend))
298 statserv_setcontrol(assoc->last_control);
299 if (assoc->backend && assoc->init)
301 gfs_server_chdir(gfs);
302 (assoc->last_control->bend_close)(assoc->backend);
309 assoc->last_control = &gfs->cb;
310 statserv_setcontrol(&gfs->cb);
312 gfs_server_chdir(gfs);
318 statserv_setcontrol(0);
319 assoc->last_control = 0;
325 statserv_setcontrol(&control_block);
326 assoc->last_control = &control_block;
328 yaz_log(YLOG_DEBUG, "server select: config=%s",
329 assoc->last_control->configname);
331 assoc->maximumRecordSize = assoc->last_control->maxrecordsize;
332 assoc->preferredMessageSize = assoc->last_control->maxrecordsize;
333 cs_set_max_recv_bytes(assoc->client_link, assoc->maximumRecordSize);
338 static void xml_config_read(void)
340 struct gfs_server **gfsp = &gfs_server_list;
341 struct gfs_listen **gfslp = &gfs_listen_list;
342 xmlNodePtr ptr = xml_config_get_root();
346 for (ptr = ptr->children; ptr; ptr = ptr->next)
348 struct _xmlAttr *attr;
349 if (ptr->type != XML_ELEMENT_NODE)
351 attr = ptr->properties;
352 if (!strcmp((const char *) ptr->name, "listen"))
355 <listen id="listenerid">tcp:@:9999</listen>
358 const char *address =
359 nmem_dup_xml_content(gfs_nmem, ptr->children);
360 for ( ; attr; attr = attr->next)
361 if (!xmlStrcmp(attr->name, BAD_CAST "id")
362 && attr->children && attr->children->type == XML_TEXT_NODE)
363 id = nmem_dup_xml_content(gfs_nmem, attr->children);
366 *gfslp = gfs_listen_new(id, address);
367 gfslp = &(*gfslp)->next;
368 *gfslp = 0; /* make listener list consistent for search */
371 else if (!strcmp((const char *) ptr->name, "server"))
373 xmlNodePtr ptr_server = ptr;
375 const char *listenref = 0;
377 struct gfs_server *gfs;
379 for ( ; attr; attr = attr->next)
380 if (!xmlStrcmp(attr->name, BAD_CAST "listenref")
381 && attr->children && attr->children->type == XML_TEXT_NODE)
382 listenref = nmem_dup_xml_content(gfs_nmem, attr->children);
383 else if (!xmlStrcmp(attr->name, BAD_CAST "id")
385 && attr->children->type == XML_TEXT_NODE)
386 id = nmem_dup_xml_content(gfs_nmem, attr->children);
388 yaz_log(YLOG_WARN, "Unknown attribute '%s' for server",
390 gfs = *gfsp = gfs_server_new(id);
391 gfs->server_node_ptr = ptr_server;
395 struct gfs_listen *gl = gfs_listen_list;
396 for (id_no = 1; gl; gl = gl->next, id_no++)
397 if (gl->id && !strcmp(gl->id, listenref))
399 gfs->listen_ref = id_no;
403 yaz_log(YLOG_WARN, "Non-existent listenref '%s' in server "
404 "config element", listenref);
406 for (ptr = ptr_server->children; ptr; ptr = ptr->next)
408 if (ptr->type != XML_ELEMENT_NODE)
410 if (!strcmp((const char *) ptr->name, "host"))
412 gfs->host = nmem_dup_xml_content(gfs_nmem,
415 else if (!strcmp((const char *) ptr->name, "config"))
417 strcpy(gfs->cb.configname,
418 nmem_dup_xml_content(gfs_nmem, ptr->children));
420 else if (!strcmp((const char *) ptr->name, "cql2rpn"))
422 char *name = nmem_dup_xml_content(gfs_nmem, ptr->children);
423 gfs->cql_transform = cql_transform_open_fname(name);
424 if (!gfs->cql_transform)
426 yaz_log(YLOG_FATAL|YLOG_ERRNO,
427 "open CQL transform file '%s'", name);
431 else if (!strcmp((const char *) ptr->name, "ccl2rpn"))
436 name = nmem_dup_xml_content(gfs_nmem, ptr->children);
437 if ((f = fopen(name, "r")) == 0) {
438 yaz_log(YLOG_FATAL, "can't open CCL file '%s'", name);
441 gfs->ccl_transform = ccl_qual_mk();
442 ccl_qual_file (gfs->ccl_transform, f);
445 else if (!strcmp((const char *) ptr->name, "directory"))
448 nmem_dup_xml_content(gfs_nmem, ptr->children);
450 else if (!strcmp((const char *) ptr->name, "docpath"))
453 nmem_dup_xml_content(gfs_nmem, ptr->children);
455 else if (!strcmp((const char *) ptr->name, "maximumrecordsize"))
457 gfs->cb.maxrecordsize = atoi(
458 nmem_dup_xml_content(gfs_nmem, ptr->children));
460 else if (!strcmp((const char *) ptr->name, "stylesheet"))
462 char *s = nmem_dup_xml_content(gfs_nmem, ptr->children);
463 gfs->stylesheet = (char *)
464 nmem_malloc(gfs_nmem, strlen(s) + 2);
465 sprintf(gfs->stylesheet, "/%s", s);
467 else if (!strcmp((const char *) ptr->name, "explain"))
469 ; /* being processed separately */
471 else if (!strcmp((const char *) ptr->name, "retrievalinfo"))
473 if (yaz_retrieval_configure(gfs->retrieval, ptr))
475 yaz_log(YLOG_FATAL, "%s in config %s",
476 yaz_retrieval_get_error(gfs->retrieval),
477 control_block.xml_config);
483 yaz_log(YLOG_FATAL, "Unknown element '%s' in config %s",
484 ptr->name, control_block.xml_config);
488 gfsp = &(*gfsp)->next;
495 static void xml_config_open(void)
497 if (!getcwd(gfs_root_dir, FILENAME_MAX))
499 yaz_log(YLOG_WARN|YLOG_ERRNO, "getcwd failed");
500 gfs_root_dir[0] = '\0';
503 init_control_tls = 1;
504 current_control_tls = TlsAlloc();
505 #elif YAZ_POSIX_THREADS
506 init_control_tls = 1;
507 pthread_key_create(¤t_control_tls, 0);
510 gfs_nmem = nmem_create();
512 if (control_block.xml_config[0] == '\0')
517 xml_config_doc = xmlParseFile(control_block.xml_config);
520 yaz_log(YLOG_FATAL, "Could not parse %s", control_block.xml_config);
525 int noSubstitutions = xmlXIncludeProcess(xml_config_doc);
526 if (noSubstitutions == -1)
528 yaz_log(YLOG_WARN, "XInclude processing failed for config %s",
529 control_block.xml_config);
538 static void xml_config_close(void)
543 xmlFreeDoc(xml_config_doc);
548 nmem_destroy(gfs_nmem);
550 if (init_control_tls)
551 TlsFree(current_control_tls);
552 #elif YAZ_POSIX_THREADS
553 if (init_control_tls)
554 pthread_key_delete(current_control_tls);
558 static void xml_config_add_listeners(void)
560 struct gfs_listen *gfs = gfs_listen_list;
563 for (id_no = 1; gfs; gfs = gfs->next, id_no++)
566 add_listener(gfs->address, id_no);
570 static void xml_config_bend_start(void)
572 if (control_block.xml_config[0])
574 struct gfs_server *gfs = gfs_server_list;
575 for (; gfs; gfs = gfs->next)
577 yaz_log(YLOG_DEBUG, "xml_config_bend_start config=%s",
579 statserv_setcontrol(&gfs->cb);
580 if (control_block.bend_start)
582 gfs_server_chdir(gfs);
583 (control_block.bend_start)(&gfs->cb);
589 yaz_log(YLOG_DEBUG, "xml_config_bend_start default config");
590 statserv_setcontrol(&control_block);
591 if (control_block.bend_start)
592 (*control_block.bend_start)(&control_block);
596 static void xml_config_bend_stop(void)
598 if (control_block.xml_config[0])
600 struct gfs_server *gfs = gfs_server_list;
601 for (; gfs; gfs = gfs->next)
603 yaz_log(YLOG_DEBUG, "xml_config_bend_stop config=%s",
605 statserv_setcontrol(&gfs->cb);
606 if (control_block.bend_stop)
607 (control_block.bend_stop)(&gfs->cb);
612 yaz_log(YLOG_DEBUG, "xml_config_bend_stop default config");
613 statserv_setcontrol(&control_block);
614 if (control_block.bend_stop)
615 (*control_block.bend_stop)(&control_block);
619 static void remove_listeners(void);
622 * handle incoming connect requests.
623 * The dynamic mode is a bit tricky mostly because we want to avoid
624 * doing all of the listening and accepting in the parent - it's
629 typedef struct _ThreadList ThreadList;
638 static ThreadList *pFirstThread;
639 static CRITICAL_SECTION Thread_CritSect;
640 static BOOL bInitialized = FALSE;
642 static void ThreadList_Initialize()
644 /* Initialize the critical Sections */
645 InitializeCriticalSection(&Thread_CritSect);
647 /* Set the first thraed */
650 /* we have been initialized */
654 static void statserv_add(HANDLE hThread, IOCHAN pIOChannel)
656 /* Only one thread can go through this section at a time */
657 EnterCriticalSection(&Thread_CritSect);
660 /* Lets create our new object */
661 ThreadList *pNewThread = (ThreadList *)malloc(sizeof(ThreadList));
662 pNewThread->hThread = hThread;
663 pNewThread->pIOChannel = pIOChannel;
664 pNewThread->pNext = pFirstThread;
665 pFirstThread = pNewThread;
667 /* Lets let somebody else create a new object now */
668 LeaveCriticalSection(&Thread_CritSect);
672 void statserv_remove(IOCHAN pIOChannel)
674 /* Only one thread can go through this section at a time */
675 EnterCriticalSection(&Thread_CritSect);
678 ThreadList *pCurrentThread = pFirstThread;
679 ThreadList *pNextThread;
680 ThreadList *pPrevThread =NULL;
682 /* Step through all the threads */
683 for (; pCurrentThread != NULL; pCurrentThread = pNextThread)
685 /* We only need to compare on the IO Channel */
686 if (pCurrentThread->pIOChannel == pIOChannel)
688 /* We have found the thread we want to delete */
689 /* First of all reset the next pointers */
690 if (pPrevThread == NULL)
691 pFirstThread = pCurrentThread->pNext;
693 pPrevThread->pNext = pCurrentThread->pNext;
695 /* All we need todo now is delete the memory */
696 free(pCurrentThread);
698 /* No need to look at any more threads */
703 /* We need to look at another thread */
704 pNextThread = pCurrentThread->pNext;
705 pPrevThread = pCurrentThread;
709 /* Lets let somebody else remove an object now */
710 LeaveCriticalSection(&Thread_CritSect);
714 /* WIN32 statserv_closedown */
715 static void statserv_closedown()
717 /* Shouldn't do anything if we are not initialized */
721 HANDLE *pThreadHandles = NULL;
723 /* We need to stop threads adding and removing while we */
724 /* start the closedown process */
725 EnterCriticalSection(&Thread_CritSect);
728 /* We have exclusive access to the thread stuff now */
729 /* Y didn't i use a semaphore - Oh well never mind */
730 ThreadList *pCurrentThread = pFirstThread;
732 /* Before we do anything else, we need to shutdown the listener */
733 if (pListener != NULL)
734 iochan_destroy(pListener);
736 for (; pCurrentThread != NULL; pCurrentThread = pCurrentThread->pNext)
738 /* Just destroy the IOCHAN, that should do the trick */
739 iochan_destroy(pCurrentThread->pIOChannel);
740 closesocket(pCurrentThread->pIOChannel->fd);
742 /* Keep a running count of our handles */
748 HANDLE *pCurrentHandle ;
750 /* Allocate the thread handle array */
751 pThreadHandles = (HANDLE *)malloc(sizeof(HANDLE) * iHandles);
752 pCurrentHandle = pThreadHandles;
754 for (pCurrentThread = pFirstThread;
755 pCurrentThread != NULL;
756 pCurrentThread = pCurrentThread->pNext, pCurrentHandle++)
758 /* Just the handle */
759 *pCurrentHandle = pCurrentThread->hThread;
763 /* We can now leave the critical section */
764 LeaveCriticalSection(&Thread_CritSect);
767 /* Now we can really do something */
770 yaz_log(log_server, "waiting for %d to die", iHandles);
771 /* This will now wait, until all the threads close */
772 WaitForMultipleObjects(iHandles, pThreadHandles, TRUE, INFINITE);
774 /* Free the memory we allocated for the handle array */
775 free(pThreadHandles);
778 xml_config_bend_stop();
779 /* No longer require the critical section, since all threads are dead */
780 DeleteCriticalSection(&Thread_CritSect);
785 void __cdecl event_loop_thread(IOCHAN iochan)
787 iochan_event_loop(&iochan);
791 static void listener(IOCHAN h, int event)
793 COMSTACK line = (COMSTACK) iochan_getdata(h);
794 IOCHAN parent_chan = line->user;
799 if (event == EVENT_INPUT)
804 if ((res = cs_listen(line, 0, 0)) < 0)
806 yaz_log(YLOG_FATAL|YLOG_ERRNO, "cs_listen failed");
810 return; /* incomplete */
811 yaz_log(YLOG_DEBUG, "listen ok");
812 new_line = cs_accept(line);
815 yaz_log(YLOG_FATAL, "Accept failed.");
818 yaz_log(YLOG_DEBUG, "Accept ok");
820 if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session,
821 EVENT_INPUT, parent_chan->chan_id)))
823 yaz_log(YLOG_FATAL, "Failed to create iochan");
828 yaz_log(YLOG_DEBUG, "Creating association");
829 if (!(newas = create_association(new_chan, new_line,
830 control_block.apdufile)))
832 yaz_log(YLOG_FATAL, "Failed to create new assoc.");
836 newas->cs_get_mask = EVENT_INPUT;
837 newas->cs_put_mask = 0;
838 newas->cs_accept_mask = 0;
840 yaz_log(YLOG_DEBUG, "Setting timeout %d", control_block.idle_timeout);
841 iochan_setdata(new_chan, newas);
842 iochan_settimeout(new_chan, 60);
844 /* Now what we need todo is create a new thread with this iochan as
846 newHandle = (HANDLE) _beginthread(event_loop_thread, 0, new_chan);
847 if (newHandle == (HANDLE) -1)
850 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create new thread.");
854 /* We successfully created the thread, so add it to the list */
855 statserv_add(newHandle, new_chan);
857 yaz_log(YLOG_DEBUG, "Created new thread, id = %ld iochan %p",(long) newHandle, new_chan);
858 iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
862 yaz_log(YLOG_FATAL, "Bad event on listener.");
870 /* To save having an #ifdef in event_loop we need to
871 define this empty function
873 void statserv_remove(IOCHAN pIOChannel)
877 static void statserv_closedown(void)
881 xml_config_bend_stop();
882 for (p = pListener; p; p = p->next)
889 static void *new_session(void *vp);
890 static int no_sessions = 0;
893 static void listener(IOCHAN h, int event)
895 COMSTACK line = (COMSTACK) iochan_getdata(h);
898 if (event == EVENT_INPUT)
901 if ((res = cs_listen_check(line, 0, 0, control_block.check_ip,
902 control_block.daemon_name)) < 0)
904 yaz_log(YLOG_WARN|YLOG_ERRNO, "cs_listen failed");
909 yaz_log(YLOG_WARN, "cs_listen incomplete");
912 new_line = cs_accept(line);
915 yaz_log(YLOG_FATAL, "Accept failed.");
916 iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
920 if (control_block.one_shot)
923 yaz_log(log_sessiondetail, "Connect from %s", cs_addrstr(new_line));
926 if (control_block.dynamic)
928 if ((res = fork()) < 0)
930 yaz_log(YLOG_FATAL|YLOG_ERRNO, "fork");
934 else if (res == 0) /* child */
939 for (pp = pListener; pp; pp = iochan_getnext(pp))
941 COMSTACK l = (COMSTACK)iochan_getdata(pp);
945 sprintf(nbuf, "%s(%d)", me, no_sessions);
946 yaz_log_init_prefix(nbuf);
947 /* ensure that bend_stop is not called when each child exits -
948 only for the main process .. */
949 control_block.bend_stop = 0;
958 if (control_block.threads)
960 #if YAZ_POSIX_THREADS
961 pthread_t child_thread;
962 pthread_create(&child_thread, 0, new_session, new_line);
963 pthread_detach(child_thread);
965 new_session(new_line);
969 new_session(new_line);
971 else if (event == EVENT_TIMEOUT)
973 yaz_log(log_server, "Shutting down listener.");
978 yaz_log(YLOG_FATAL, "Bad event on listener.");
983 static void *new_session(void *vp)
988 COMSTACK new_line = (COMSTACK) vp;
989 IOCHAN parent_chan = (IOCHAN) new_line->user;
991 unsigned cs_get_mask, cs_accept_mask, mask =
992 ((new_line->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) |
993 ((new_line->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0);
997 cs_accept_mask = mask; /* accept didn't complete */
1002 cs_accept_mask = 0; /* accept completed. */
1003 cs_get_mask = mask = EVENT_INPUT;
1006 if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session, mask,
1007 parent_chan->chan_id)))
1009 yaz_log(YLOG_FATAL, "Failed to create iochan");
1012 if (!(newas = create_association(new_chan, new_line,
1013 control_block.apdufile)))
1015 yaz_log(YLOG_FATAL, "Failed to create new assoc.");
1018 newas->cs_accept_mask = cs_accept_mask;
1019 newas->cs_get_mask = cs_get_mask;
1021 iochan_setdata(new_chan, newas);
1022 iochan_settimeout(new_chan, 60);
1024 a = cs_addrstr(new_line);
1028 yaz_log_xml_errors(0, YLOG_WARN);
1029 yaz_log(log_session, "Session - OK %d %s %ld",
1030 no_sessions, a ? a : "[Unknown]", (long) getpid());
1031 if (max_sessions && no_sessions >= max_sessions)
1032 control_block.one_shot = 1;
1033 if (control_block.threads)
1035 iochan_event_loop(&new_chan);
1039 new_chan->next = pListener;
1040 pListener = new_chan;
1048 static void inetd_connection(int what)
1055 if ((line = cs_createbysocket(0, tcpip_type, 0, what)))
1057 if ((chan = iochan_create(cs_fileno(line), ir_session, EVENT_INPUT,
1060 if ((assoc = create_association(chan, line,
1061 control_block.apdufile)))
1063 iochan_setdata(chan, assoc);
1064 iochan_settimeout(chan, 60);
1065 addr = cs_addrstr(line);
1066 yaz_log(log_sessiondetail, "Inetd association from %s",
1067 addr ? addr : "[UNKNOWN]");
1068 assoc->cs_get_mask = EVENT_INPUT;
1072 yaz_log(YLOG_FATAL, "Failed to create association structure");
1074 chan->next = pListener;
1079 yaz_log(YLOG_FATAL, "Failed to create iochan");
1084 yaz_log(YLOG_ERRNO|YLOG_FATAL, "Failed to create comstack on socket 0");
1089 * Set up a listening endpoint, and give it to the event-handler.
1091 static int add_listener(char *where, int listen_id)
1098 if (control_block.dynamic)
1100 else if (control_block.threads)
1105 yaz_log(log_server, "Adding %s listener on %s id=%d", mode, where,
1108 l = cs_create_host(where, 2, &ap);
1111 yaz_log(YLOG_FATAL, "Failed to listen on %s", where);
1114 if (*control_block.cert_fname)
1115 cs_set_ssl_certificate_file(l, control_block.cert_fname);
1117 if (cs_bind(l, ap, CS_SERVER) < 0)
1119 if (cs_errno(l) == CSYSERR)
1120 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to bind to %s", where);
1122 yaz_log(YLOG_FATAL, "Failed to bind to %s: %s", where,
1127 if (!(lst = iochan_create(cs_fileno(l), listener, EVENT_INPUT |
1128 EVENT_EXCEPT, listen_id)))
1130 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create IOCHAN-type");
1134 iochan_setdata(lst, l); /* user-defined data for listener is COMSTACK */
1135 l->user = lst; /* user-defined data for COMSTACK is listener chan */
1137 /* Add listener to chain */
1138 lst->next = pListener;
1143 static void remove_listeners(void)
1145 IOCHAN l = pListener;
1146 for (; l; l = l->next)
1151 /* UNIX only (for windows we don't need to catch the signals) */
1152 static void catchchld(int num)
1154 while (waitpid(-1, 0, WNOHANG) > 0)
1156 signal(SIGCHLD, catchchld);
1160 statserv_options_block *statserv_getcontrol(void)
1163 if (init_control_tls)
1164 return (statserv_options_block *) TlsGetValue(current_control_tls);
1166 return &control_block;
1167 #elif YAZ_POSIX_THREADS
1168 if (init_control_tls)
1169 return (statserv_options_block *)
1170 pthread_getspecific(current_control_tls);
1172 return &control_block;
1174 if (current_control_block)
1175 return current_control_block;
1176 return &control_block;
1180 void statserv_setcontrol(statserv_options_block *block)
1182 if (gfs_root_dir[0])
1184 if (chdir(gfs_root_dir))
1185 yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s", gfs_root_dir);
1188 if (init_control_tls)
1189 TlsSetValue(current_control_tls, block);
1190 #elif YAZ_POSIX_THREADS
1191 if (init_control_tls)
1192 pthread_setspecific(current_control_tls, block);
1194 current_control_block = block;
1198 static void statserv_reset(void)
1202 static void daemon_handler(void *data)
1204 IOCHAN *pListener = data;
1205 iochan_event_loop(pListener);
1208 static int statserv_sc_main(yaz_sc_t s, int argc, char **argv)
1212 /* We need to initialize the thread list */
1213 ThreadList_Initialize();
1223 if ((me = strrchr(argv[0], sep)))
1224 me++; /* get the basename */
1227 programname = argv[0];
1229 if (control_block.options_func(argc, argv))
1234 xml_config_bend_start();
1236 if (control_block.inetd)
1239 ; /* no inetd on Windows */
1241 inetd_connection(control_block.default_proto);
1246 xml_config_add_listeners();
1248 if (!pListener && *control_block.default_listen)
1249 add_listener(control_block.default_listen, 0);
1252 if (control_block.dynamic)
1253 signal(SIGCHLD, catchchld);
1256 if (pListener == NULL)
1260 yaz_log(YLOG_DEBUG, "Entering event loop.");
1262 yaz_daemon(programname,
1263 (control_block.background ? YAZ_DAEMON_FORK : 0),
1264 daemon_handler, &pListener,
1265 *control_block.pid_fname ? control_block.pid_fname : 0,
1266 *control_block.setuid ? control_block.setuid : 0);
1270 static void option_copy(char *dst, const char *src)
1272 strncpy(dst, src ? src : "", 127);
1276 int check_options(int argc, char **argv)
1281 yaz_log_init_level(yaz_log_mask_str(STAT_DEFAULT_LOG_LEVEL));
1285 while ((ret = options("1a:iszSTl:v:u:c:w:t:k:Kd:A:p:DC:f:m:r:",
1286 argv, argc, &arg)) != -2)
1291 if (add_listener(arg, 0))
1292 return 1; /* failed to create listener */
1295 control_block.one_shot = 1;
1296 control_block.dynamic = 0;
1299 control_block.default_proto = PROTO_Z3950;
1302 fprintf(stderr, "%s: SR protocol no longer supported\n", me);
1306 control_block.dynamic = 0;
1309 #if YAZ_POSIX_THREADS
1310 control_block.dynamic = 0;
1311 control_block.threads = 1;
1313 fprintf(stderr, "%s: Threaded mode not available.\n", me);
1318 option_copy(control_block.logfile, arg);
1319 yaz_log_init_file(control_block.logfile);
1323 fprintf(stderr, "%s: Specify time format for log file.\n", me);
1326 yaz_log_time_format(arg);
1329 yaz_log_init_level(yaz_log_mask_str(arg));
1333 option_copy(control_block.apdufile, arg);
1336 option_copy(control_block.setuid, arg);
1339 option_copy(control_block.configname, arg);
1342 option_copy(control_block.cert_fname, arg);
1345 option_copy(control_block.daemon_name, arg);
1348 if (!arg || !(r = atoi(arg)))
1350 fprintf(stderr, "%s: Specify positive timeout for -t.\n", me);
1353 control_block.idle_timeout = strchr(arg, 's') ? r : 60 * r;
1356 if (!arg || !(r = atoi(arg)))
1358 fprintf(stderr, "%s: Specify positive size for -k.\n", me);
1361 control_block.maxrecordsize = r * 1024;
1364 control_block.keepalive = 0;
1367 control_block.inetd = 1;
1377 max_sessions = atoi(arg);
1380 option_copy(control_block.pid_fname, arg);
1384 option_copy(control_block.xml_config, arg);
1386 fprintf(stderr, "%s: Option -f unsupported since YAZ is compiled without Libxml2 support\n", me);
1391 control_block.background = 1;
1394 if (!arg || !(r = atoi(arg)))
1396 fprintf(stderr, "%s: Specify positive size for -r.\n", me);
1399 yaz_log_init_max_size(r * 1024);
1402 fprintf(stderr, "Usage: %s [ -a <pdufile> -v <loglevel>"
1403 " -l <logfile> -u <user> -c <config> -t <minutes>"
1404 " -k <kilobytes> -d <daemon> -p <pidfile> -C certfile"
1405 " -zKiDST1 -m <time-format> -w <directory> <listener-addr>... ]\n", me);
1412 void statserv_sc_stop(yaz_sc_t s)
1414 statserv_closedown();
1418 int statserv_main(int argc, char **argv,
1419 bend_initresult *(*bend_init)(bend_initrequest *r),
1420 void (*bend_close)(void *handle))
1423 struct statserv_options_block *cb = &control_block;
1425 /* control block does not have service_name member on Unix */
1426 yaz_sc_t s = yaz_sc_create(
1428 cb->service_name, cb->service_display_name
1434 cb->bend_init = bend_init;
1435 cb->bend_close = bend_close;
1437 ret = yaz_sc_program(s, argc, argv, statserv_sc_main, statserv_sc_stop);
1445 * c-file-style: "Stroustrup"
1446 * indent-tabs-mode: nil
1448 * vim: shiftwidth=4 tabstop=8 expandtab