1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) 1995-2013 Index Data
3 * See the file LICENSE for details.
8 * \brief Implements GFS logic
26 #include <yaz/tpath.h>
29 #include <sys/types.h>
42 #include <libxml/parser.h>
43 #include <libxml/tree.h>
44 #include <libxml/xinclude.h>
55 #include <yaz/comstack.h>
56 #include <yaz/tcpip.h>
57 #include <yaz/options.h>
58 #include <yaz/errno.h>
60 #include <yaz/xmosi.h>
65 #include <yaz/statserv.h>
66 #include <yaz/daemon.h>
67 #include <yaz/yaz-iconv.h>
69 static IOCHAN pListener = NULL;
71 static char gfs_root_dir[FILENAME_MAX+1];
72 static struct gfs_server *gfs_server_list = 0;
73 static struct gfs_listen *gfs_listen_list = 0;
74 static NMEM gfs_nmem = 0;
76 static char *me = "statserver"; /* log prefix */
77 static char *programname="statserver"; /* full program name */
79 DWORD current_control_tls;
80 static int init_control_tls = 0;
81 #elif YAZ_POSIX_THREADS
82 static pthread_key_t current_control_tls;
83 static int init_control_tls = 0;
85 static statserv_options_block *current_control_block = 0;
91 #define STAT_DEFAULT_LOG_LEVEL "server,session,request"
93 int check_options(int argc, char **argv);
94 statserv_options_block control_block = {
96 0, /* threaded mode */
97 0, /* one shot (single session) */
99 "", /* diagnostic output to stderr */
100 PROTO_Z3950, /* default application protocol */
101 900, /* idle timeout (seconds) */
102 64*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 */
121 0, /* background daemon */
122 "", /* SSL certificate filename */
123 "", /* XML config filename */
127 static int max_sessions = 0;
129 static int logbits_set = 0;
130 static int log_session = 0; /* one-line logs for session */
131 static int log_sessiondetail = 0; /* more detailed stuff */
132 static int log_server = 0;
134 /** get_logbits sets global loglevel bits */
135 static void get_logbits(int force)
136 { /* needs to be called after parsing cmd-line args that can set loglevels!*/
137 if (force || !logbits_set)
140 log_session = yaz_log_module_level("session");
141 log_sessiondetail = yaz_log_module_level("sessiondetail");
142 log_server = yaz_log_module_level("server");
147 static int add_listener(char *where, int listen_id);
150 static xmlDocPtr xml_config_doc = 0;
154 static xmlNodePtr xml_config_get_root(void)
159 ptr = xmlDocGetRootElement(xml_config_doc);
160 if (!ptr || ptr->type != XML_ELEMENT_NODE ||
161 strcmp((const char *) ptr->name, "yazgfs"))
163 yaz_log(YLOG_WARN, "Bad/missing root element for config %s",
164 control_block.xml_config);
174 static char *nmem_dup_xml_content(NMEM n, xmlNodePtr ptr)
178 int len = 1; /* start with 1, because of trailing 0 */
180 int first = 1; /* whitespace lead flag .. */
181 /* determine length */
182 for (p = ptr; p; p = p->next)
184 if (p->type == XML_TEXT_NODE)
185 len += xmlStrlen(p->content);
187 /* now allocate for the string */
188 str = (unsigned char *) nmem_malloc(n, len);
189 *str = '\0'; /* so we can use strcat */
190 for (p = ptr; p; p = p->next)
192 if (p->type == XML_TEXT_NODE)
197 while(*cp && yaz_isspace(*cp))
200 first = 0; /* reset if we got non-whitespace out */
202 strcat((char *)str, (const char *)cp); /* append */
205 /* remove trailing whitespace */
206 cp = strlen((const char *)str) + str;
207 while (cp != str && yaz_isspace(cp[-1]))
210 /* return resulting string */
216 static struct gfs_server * gfs_server_new(const char *id)
218 struct gfs_server *n = (struct gfs_server *)
219 nmem_malloc(gfs_nmem, sizeof(*n));
220 memcpy(&n->cb, &control_block, sizeof(control_block));
224 n->cql_transform = 0;
225 n->ccl_transform = 0;
226 n->server_node_ptr = 0;
230 n->id = nmem_strdup_null(gfs_nmem, id);
231 n->retrieval = yaz_retrieval_create();
237 static struct gfs_listen * gfs_listen_new(const char *id,
240 struct gfs_listen *n = (struct gfs_listen *)
241 nmem_malloc(gfs_nmem, sizeof(*n));
243 n->id = nmem_strdup(gfs_nmem, id);
247 n->address = nmem_strdup(gfs_nmem, address);
252 static void gfs_server_chdir(struct gfs_server *gfs)
256 if (chdir(gfs_root_dir))
257 yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s", gfs_root_dir);
261 if (chdir(gfs->directory))
262 yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s",
267 int control_association(association *assoc, const char *host, int force_open)
269 char vhost[128], *cp;
272 strncpy(vhost, host, 127);
274 cp = strchr(vhost, ':');
280 if (control_block.xml_config[0])
282 struct gfs_server *gfs;
283 for (gfs = gfs_server_list; gfs; gfs = gfs->next)
285 int listen_match = 0;
287 if ( !gfs->host || (host && gfs->host && !strcmp(host, gfs->host)))
289 if (!gfs->listen_ref ||
290 gfs->listen_ref == assoc->client_chan->chan_id)
292 if (listen_match && host_match)
295 (assoc->last_control != &gfs->cb && assoc->backend))
297 statserv_setcontrol(assoc->last_control);
298 if (assoc->backend && assoc->init)
300 gfs_server_chdir(gfs);
301 (assoc->last_control->bend_close)(assoc->backend);
308 assoc->last_control = &gfs->cb;
309 statserv_setcontrol(&gfs->cb);
311 gfs_server_chdir(gfs);
317 statserv_setcontrol(0);
318 assoc->last_control = 0;
324 statserv_setcontrol(&control_block);
325 assoc->last_control = &control_block;
327 yaz_log(YLOG_DEBUG, "server select: config=%s",
328 assoc->last_control->configname);
330 assoc->maximumRecordSize = assoc->last_control->maxrecordsize;
331 assoc->preferredMessageSize = assoc->last_control->maxrecordsize;
332 cs_set_max_recv_bytes(assoc->client_link, assoc->maximumRecordSize);
337 static void xml_config_read(const char *base_path)
339 struct gfs_server **gfsp = &gfs_server_list;
340 struct gfs_listen **gfslp = &gfs_listen_list;
341 xmlNodePtr ptr = xml_config_get_root();
345 for (ptr = ptr->children; ptr; ptr = ptr->next)
347 struct _xmlAttr *attr;
348 if (ptr->type != XML_ELEMENT_NODE)
350 attr = ptr->properties;
351 if (!strcmp((const char *) ptr->name, "listen"))
354 <listen id="listenerid">tcp:@:9999</listen>
357 const char *address =
358 nmem_dup_xml_content(gfs_nmem, ptr->children);
359 for ( ; attr; attr = attr->next)
360 if (!xmlStrcmp(attr->name, BAD_CAST "id")
361 && attr->children && attr->children->type == XML_TEXT_NODE)
362 id = nmem_dup_xml_content(gfs_nmem, attr->children);
365 *gfslp = gfs_listen_new(id, address);
366 gfslp = &(*gfslp)->next;
367 *gfslp = 0; /* make listener list consistent for search */
370 else if (!strcmp((const char *) ptr->name, "server"))
372 xmlNodePtr ptr_server = ptr;
374 const char *listenref = 0;
376 struct gfs_server *gfs;
378 for ( ; attr; attr = attr->next)
379 if (!xmlStrcmp(attr->name, BAD_CAST "listenref")
380 && attr->children && attr->children->type == XML_TEXT_NODE)
381 listenref = nmem_dup_xml_content(gfs_nmem, attr->children);
382 else if (!xmlStrcmp(attr->name, BAD_CAST "id")
384 && attr->children->type == XML_TEXT_NODE)
385 id = nmem_dup_xml_content(gfs_nmem, attr->children);
387 yaz_log(YLOG_WARN, "Unknown attribute '%s' for server",
389 gfs = *gfsp = gfs_server_new(id);
390 gfs->server_node_ptr = ptr_server;
394 struct gfs_listen *gl = gfs_listen_list;
395 for (id_no = 1; gl; gl = gl->next, id_no++)
396 if (gl->id && !strcmp(gl->id, listenref))
398 gfs->listen_ref = id_no;
402 yaz_log(YLOG_WARN, "Non-existent listenref '%s' in server "
403 "config element", listenref);
405 for (ptr = ptr_server->children; ptr; ptr = ptr->next)
407 if (ptr->type != XML_ELEMENT_NODE)
409 if (!strcmp((const char *) ptr->name, "host"))
411 gfs->host = nmem_dup_xml_content(gfs_nmem,
414 else if (!strcmp((const char *) ptr->name, "config"))
417 strcpy(gfs->cb.configname,
418 nmem_dup_xml_content(gfs_nmem, ptr->children));
420 if (yaz_filepath_resolve(gfs->cb.configname,
421 base_path, 0, fpath))
422 strcpy(gfs->cb.configname, fpath);
424 else if (!strcmp((const char *) ptr->name, "cql2rpn"))
427 char *fname = nmem_dup_xml_content(gfs_nmem, ptr->children);
428 if (yaz_filepath_resolve(fname, base_path, 0, fpath))
431 gfs->cql_transform = cql_transform_open_fname(fname);
432 if (!gfs->cql_transform)
434 yaz_log(YLOG_FATAL|YLOG_ERRNO,
435 "open CQL transform file '%s'", fname);
439 else if (!strcmp((const char *) ptr->name, "ccl2rpn"))
441 char *fname, fpath[1024];
444 fname = nmem_dup_xml_content(gfs_nmem, ptr->children);
445 if (yaz_filepath_resolve(fname, base_path, 0, fpath))
448 if ((f = fopen(fname, "r")) == 0) {
449 yaz_log(YLOG_FATAL, "can't open CCL file '%s'", fname);
452 gfs->ccl_transform = ccl_qual_mk();
453 ccl_qual_file (gfs->ccl_transform, f);
456 else if (!strcmp((const char *) ptr->name, "directory"))
459 nmem_dup_xml_content(gfs_nmem, ptr->children);
461 else if (!strcmp((const char *) ptr->name, "docpath"))
464 nmem_dup_xml_content(gfs_nmem, ptr->children);
466 else if (!strcmp((const char *) ptr->name, "maximumrecordsize"))
468 gfs->cb.maxrecordsize = atoi(
469 nmem_dup_xml_content(gfs_nmem, ptr->children));
471 else if (!strcmp((const char *) ptr->name, "stylesheet"))
473 char *s = nmem_dup_xml_content(gfs_nmem, ptr->children);
474 gfs->stylesheet = (char *)
475 nmem_malloc(gfs_nmem, strlen(s) + 2);
476 sprintf(gfs->stylesheet, "/%s", s);
478 else if (!strcmp((const char *) ptr->name, "explain"))
480 ; /* being processed separately */
482 else if (!strcmp((const char *) ptr->name, "retrievalinfo"))
485 yaz_retrieval_set_path(gfs->retrieval, base_path);
486 if (yaz_retrieval_configure(gfs->retrieval, ptr))
488 yaz_log(YLOG_FATAL, "%s in config %s",
489 yaz_retrieval_get_error(gfs->retrieval),
490 control_block.xml_config);
496 yaz_log(YLOG_FATAL, "Unknown element '%s' in config %s",
497 ptr->name, control_block.xml_config);
501 gfsp = &(*gfsp)->next;
508 static void xml_config_open(void)
512 const char *fname = control_block.xml_config;
513 if (!getcwd(gfs_root_dir, FILENAME_MAX))
515 yaz_log(YLOG_WARN|YLOG_ERRNO, "getcwd failed");
516 gfs_root_dir[0] = '\0';
519 init_control_tls = 1;
520 current_control_tls = TlsAlloc();
521 #elif YAZ_POSIX_THREADS
522 init_control_tls = 1;
523 pthread_key_create(¤t_control_tls, 0);
526 gfs_nmem = nmem_create();
528 if (fname[0] == '\0')
533 xml_config_doc = xmlParseFile(fname);
536 yaz_log(YLOG_FATAL, "Could not parse %s", fname);
541 int noSubstitutions = xmlXIncludeProcess(xml_config_doc);
542 if (noSubstitutions == -1)
544 yaz_log(YLOG_WARN, "XInclude processing failed for config %s",
550 base_path = wrbuf_alloc();
551 last_p = strrchr(fname,
559 wrbuf_write(base_path, fname, last_p - fname);
561 wrbuf_puts(base_path, ".");
562 xml_config_read(wrbuf_cstr(base_path));
563 wrbuf_destroy(base_path);
567 static void xml_config_close(void)
572 xmlFreeDoc(xml_config_doc);
577 nmem_destroy(gfs_nmem);
579 if (init_control_tls)
580 TlsFree(current_control_tls);
581 #elif YAZ_POSIX_THREADS
582 if (init_control_tls)
583 pthread_key_delete(current_control_tls);
587 static void xml_config_add_listeners(void)
589 struct gfs_listen *gfs = gfs_listen_list;
592 for (id_no = 1; gfs; gfs = gfs->next, id_no++)
595 add_listener(gfs->address, id_no);
599 static void xml_config_bend_start(void)
601 if (control_block.xml_config[0])
603 struct gfs_server *gfs = gfs_server_list;
604 for (; gfs; gfs = gfs->next)
606 yaz_log(YLOG_DEBUG, "xml_config_bend_start config=%s",
608 statserv_setcontrol(&gfs->cb);
609 if (control_block.bend_start)
611 gfs_server_chdir(gfs);
612 (control_block.bend_start)(&gfs->cb);
618 yaz_log(YLOG_DEBUG, "xml_config_bend_start default config");
619 statserv_setcontrol(&control_block);
620 if (control_block.bend_start)
621 (*control_block.bend_start)(&control_block);
625 static void xml_config_bend_stop(void)
627 if (control_block.xml_config[0])
629 struct gfs_server *gfs = gfs_server_list;
630 for (; gfs; gfs = gfs->next)
632 yaz_log(YLOG_DEBUG, "xml_config_bend_stop config=%s",
634 statserv_setcontrol(&gfs->cb);
635 if (control_block.bend_stop)
636 (control_block.bend_stop)(&gfs->cb);
641 yaz_log(YLOG_DEBUG, "xml_config_bend_stop default config");
642 statserv_setcontrol(&control_block);
643 if (control_block.bend_stop)
644 (*control_block.bend_stop)(&control_block);
648 static void remove_listeners(void);
651 * handle incoming connect requests.
652 * The dynamic mode is a bit tricky mostly because we want to avoid
653 * doing all of the listening and accepting in the parent - it's
658 typedef struct _ThreadList ThreadList;
667 static ThreadList *pFirstThread;
668 static CRITICAL_SECTION Thread_CritSect;
669 static BOOL bInitialized = FALSE;
671 static void ThreadList_Initialize()
673 /* Initialize the critical Sections */
674 InitializeCriticalSection(&Thread_CritSect);
676 /* Set the first thraed */
679 /* we have been initialized */
683 static void statserv_add(HANDLE hThread, IOCHAN pIOChannel)
685 /* Only one thread can go through this section at a time */
686 EnterCriticalSection(&Thread_CritSect);
689 /* Lets create our new object */
690 ThreadList *pNewThread = (ThreadList *)malloc(sizeof(ThreadList));
691 pNewThread->hThread = hThread;
692 pNewThread->pIOChannel = pIOChannel;
693 pNewThread->pNext = pFirstThread;
694 pFirstThread = pNewThread;
696 /* Lets let somebody else create a new object now */
697 LeaveCriticalSection(&Thread_CritSect);
701 void statserv_remove(IOCHAN pIOChannel)
703 /* Only one thread can go through this section at a time */
704 EnterCriticalSection(&Thread_CritSect);
707 ThreadList *pCurrentThread = pFirstThread;
708 ThreadList *pNextThread;
709 ThreadList *pPrevThread =NULL;
711 /* Step through all the threads */
712 for (; pCurrentThread != NULL; pCurrentThread = pNextThread)
714 /* We only need to compare on the IO Channel */
715 if (pCurrentThread->pIOChannel == pIOChannel)
717 /* We have found the thread we want to delete */
718 /* First of all reset the next pointers */
719 if (pPrevThread == NULL)
720 pFirstThread = pCurrentThread->pNext;
722 pPrevThread->pNext = pCurrentThread->pNext;
724 /* All we need todo now is delete the memory */
725 free(pCurrentThread);
727 /* No need to look at any more threads */
732 /* We need to look at another thread */
733 pNextThread = pCurrentThread->pNext;
734 pPrevThread = pCurrentThread;
738 /* Lets let somebody else remove an object now */
739 LeaveCriticalSection(&Thread_CritSect);
743 /* WIN32 statserv_closedown */
744 static void statserv_closedown()
746 /* Shouldn't do anything if we are not initialized */
750 HANDLE *pThreadHandles = NULL;
752 /* We need to stop threads adding and removing while we */
753 /* start the closedown process */
754 EnterCriticalSection(&Thread_CritSect);
757 /* We have exclusive access to the thread stuff now */
758 /* Y didn't i use a semaphore - Oh well never mind */
759 ThreadList *pCurrentThread = pFirstThread;
761 /* Before we do anything else, we need to shutdown the listener */
762 if (pListener != NULL)
763 iochan_destroy(pListener);
765 for (; pCurrentThread != NULL; pCurrentThread = pCurrentThread->pNext)
767 /* Just destroy the IOCHAN, that should do the trick */
768 iochan_destroy(pCurrentThread->pIOChannel);
769 closesocket(pCurrentThread->pIOChannel->fd);
771 /* Keep a running count of our handles */
777 HANDLE *pCurrentHandle ;
779 /* Allocate the thread handle array */
780 pThreadHandles = (HANDLE *)malloc(sizeof(HANDLE) * iHandles);
781 pCurrentHandle = pThreadHandles;
783 for (pCurrentThread = pFirstThread;
784 pCurrentThread != NULL;
785 pCurrentThread = pCurrentThread->pNext, pCurrentHandle++)
787 /* Just the handle */
788 *pCurrentHandle = pCurrentThread->hThread;
792 /* We can now leave the critical section */
793 LeaveCriticalSection(&Thread_CritSect);
796 /* Now we can really do something */
799 yaz_log(log_server, "waiting for %d to die", iHandles);
800 /* This will now wait, until all the threads close */
801 WaitForMultipleObjects(iHandles, pThreadHandles, TRUE, INFINITE);
803 /* Free the memory we allocated for the handle array */
804 free(pThreadHandles);
807 xml_config_bend_stop();
808 /* No longer require the critical section, since all threads are dead */
809 DeleteCriticalSection(&Thread_CritSect);
814 void __cdecl event_loop_thread(IOCHAN iochan)
816 iochan_event_loop(&iochan);
820 static void listener(IOCHAN h, int event)
822 COMSTACK line = (COMSTACK) iochan_getdata(h);
823 IOCHAN parent_chan = line->user;
828 if (event == EVENT_INPUT)
833 if ((res = cs_listen(line, 0, 0)) < 0)
835 yaz_log(YLOG_FATAL|YLOG_ERRNO, "cs_listen failed");
839 return; /* incomplete */
840 yaz_log(YLOG_DEBUG, "listen ok");
841 new_line = cs_accept(line);
844 yaz_log(YLOG_FATAL, "Accept failed.");
847 yaz_log(YLOG_DEBUG, "Accept ok");
849 if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session,
850 EVENT_INPUT, parent_chan->chan_id)))
852 yaz_log(YLOG_FATAL, "Failed to create iochan");
857 yaz_log(YLOG_DEBUG, "Creating association");
858 if (!(newas = create_association(new_chan, new_line,
859 control_block.apdufile)))
861 yaz_log(YLOG_FATAL, "Failed to create new assoc.");
865 newas->cs_get_mask = EVENT_INPUT;
866 newas->cs_put_mask = 0;
867 newas->cs_accept_mask = 0;
869 yaz_log(YLOG_DEBUG, "Setting timeout %d", control_block.idle_timeout);
870 iochan_setdata(new_chan, newas);
871 iochan_settimeout(new_chan, 60);
873 /* Now what we need todo is create a new thread with this iochan as
875 newHandle = (HANDLE) _beginthread(event_loop_thread, 0, new_chan);
876 if (newHandle == (HANDLE) -1)
879 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create new thread.");
883 /* We successfully created the thread, so add it to the list */
884 statserv_add(newHandle, new_chan);
886 yaz_log(YLOG_DEBUG, "Created new thread, id = %ld iochan %p",(long) newHandle, new_chan);
887 iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
891 yaz_log(YLOG_FATAL, "Bad event on listener.");
899 /* To save having an #ifdef in event_loop we need to
900 define this empty function
902 void statserv_remove(IOCHAN pIOChannel)
906 static void statserv_closedown(void)
910 xml_config_bend_stop();
911 for (p = pListener; p; p = p->next)
918 static void *new_session(void *vp);
919 static int no_sessions = 0;
922 static void listener(IOCHAN h, int event)
924 COMSTACK line = (COMSTACK) iochan_getdata(h);
927 if (event == EVENT_INPUT)
930 if ((res = cs_listen_check(line, 0, 0, control_block.check_ip,
931 control_block.daemon_name)) < 0)
933 yaz_log(YLOG_WARN|YLOG_ERRNO, "cs_listen failed");
938 yaz_log(YLOG_WARN, "cs_listen incomplete");
941 new_line = cs_accept(line);
944 yaz_log(YLOG_FATAL, "Accept failed.");
945 iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
949 if (control_block.one_shot)
952 yaz_log(log_sessiondetail, "Connect from %s", cs_addrstr(new_line));
955 if (control_block.dynamic)
957 if ((res = fork()) < 0)
959 yaz_log(YLOG_FATAL|YLOG_ERRNO, "fork");
963 else if (res == 0) /* child */
968 for (pp = pListener; pp; pp = iochan_getnext(pp))
970 COMSTACK l = (COMSTACK)iochan_getdata(pp);
974 sprintf(nbuf, "%s(%d)", me, no_sessions);
975 yaz_log_init_prefix(nbuf);
976 /* ensure that bend_stop is not called when each child exits -
977 only for the main process .. */
978 control_block.bend_stop = 0;
987 if (control_block.threads)
989 #if YAZ_POSIX_THREADS
990 pthread_t child_thread;
991 pthread_create(&child_thread, 0, new_session, new_line);
992 pthread_detach(child_thread);
994 new_session(new_line);
998 new_session(new_line);
1000 else if (event == EVENT_TIMEOUT)
1002 yaz_log(log_server, "Shutting down listener.");
1007 yaz_log(YLOG_FATAL, "Bad event on listener.");
1012 static void *new_session(void *vp)
1017 COMSTACK new_line = (COMSTACK) vp;
1018 IOCHAN parent_chan = (IOCHAN) new_line->user;
1020 unsigned cs_get_mask, cs_accept_mask, mask =
1021 ((new_line->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) |
1022 ((new_line->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0);
1026 cs_accept_mask = mask; /* accept didn't complete */
1031 cs_accept_mask = 0; /* accept completed. */
1032 cs_get_mask = mask = EVENT_INPUT;
1035 if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session, mask,
1036 parent_chan->chan_id)))
1038 yaz_log(YLOG_FATAL, "Failed to create iochan");
1041 if (!(newas = create_association(new_chan, new_line,
1042 control_block.apdufile)))
1044 yaz_log(YLOG_FATAL, "Failed to create new assoc.");
1047 newas->cs_accept_mask = cs_accept_mask;
1048 newas->cs_get_mask = cs_get_mask;
1050 iochan_setdata(new_chan, newas);
1051 iochan_settimeout(new_chan, 60);
1053 a = cs_addrstr(new_line);
1057 yaz_log_xml_errors(0, YLOG_WARN);
1058 yaz_log(log_session, "Session - OK %d %s PID=%ld",
1059 no_sessions, a ? a : "[Unknown]", (long) getpid());
1060 if (max_sessions && no_sessions >= max_sessions)
1061 control_block.one_shot = 1;
1062 if (control_block.threads)
1064 iochan_event_loop(&new_chan);
1068 new_chan->next = pListener;
1069 pListener = new_chan;
1077 static void inetd_connection(int what)
1084 if ((line = cs_createbysocket(0, tcpip_type, 0, what)))
1086 if ((chan = iochan_create(cs_fileno(line), ir_session, EVENT_INPUT,
1089 if ((assoc = create_association(chan, line,
1090 control_block.apdufile)))
1092 iochan_setdata(chan, assoc);
1093 iochan_settimeout(chan, 60);
1094 addr = cs_addrstr(line);
1095 yaz_log(log_sessiondetail, "Inetd association from %s",
1096 addr ? addr : "[UNKNOWN]");
1097 assoc->cs_get_mask = EVENT_INPUT;
1101 yaz_log(YLOG_FATAL, "Failed to create association structure");
1103 chan->next = pListener;
1108 yaz_log(YLOG_FATAL, "Failed to create iochan");
1113 yaz_log(YLOG_ERRNO|YLOG_FATAL, "Failed to create comstack on socket 0");
1118 * Set up a listening endpoint, and give it to the event-handler.
1120 static int add_listener(char *where, int listen_id)
1127 if (control_block.dynamic)
1129 else if (control_block.threads)
1134 yaz_log(log_server, "Adding %s listener on %s id=%d PID=%ld", mode, where,
1135 listen_id, (long) getpid());
1137 l = cs_create_host(where, 2, &ap);
1140 yaz_log(YLOG_FATAL, "Failed to listen on %s", where);
1143 if (*control_block.cert_fname)
1144 cs_set_ssl_certificate_file(l, control_block.cert_fname);
1146 if (cs_bind(l, ap, CS_SERVER) < 0)
1148 if (cs_errno(l) == CSYSERR)
1149 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to bind to %s", where);
1151 yaz_log(YLOG_FATAL, "Failed to bind to %s: %s", where,
1156 if (!(lst = iochan_create(cs_fileno(l), listener, EVENT_INPUT |
1157 EVENT_EXCEPT, listen_id)))
1159 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create IOCHAN-type");
1163 iochan_setdata(lst, l); /* user-defined data for listener is COMSTACK */
1164 l->user = lst; /* user-defined data for COMSTACK is listener chan */
1166 /* Add listener to chain */
1167 lst->next = pListener;
1172 static void remove_listeners(void)
1174 IOCHAN l = pListener;
1175 for (; l; l = l->next)
1180 /* UNIX only (for windows we don't need to catch the signals) */
1181 static void catchchld(int num)
1183 while (waitpid(-1, 0, WNOHANG) > 0)
1185 signal(SIGCHLD, catchchld);
1189 statserv_options_block *statserv_getcontrol(void)
1192 if (init_control_tls)
1193 return (statserv_options_block *) TlsGetValue(current_control_tls);
1195 return &control_block;
1196 #elif YAZ_POSIX_THREADS
1197 if (init_control_tls)
1198 return (statserv_options_block *)
1199 pthread_getspecific(current_control_tls);
1201 return &control_block;
1203 if (current_control_block)
1204 return current_control_block;
1205 return &control_block;
1209 void statserv_setcontrol(statserv_options_block *block)
1211 if (gfs_root_dir[0])
1213 if (chdir(gfs_root_dir))
1214 yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s", gfs_root_dir);
1217 if (init_control_tls)
1218 TlsSetValue(current_control_tls, block);
1219 #elif YAZ_POSIX_THREADS
1220 if (init_control_tls)
1221 pthread_setspecific(current_control_tls, block);
1223 current_control_block = block;
1227 static void statserv_reset(void)
1231 static void daemon_handler(void *data)
1233 IOCHAN *pListener = data;
1234 iochan_event_loop(pListener);
1238 static void normal_stop_handler(int num)
1240 yaz_log(log_server, "Received SIGTERM. PID=%ld", (long) getpid());
1245 static int statserv_sc_main(yaz_sc_t s, int argc, char **argv)
1249 /* We need to initialize the thread list */
1250 ThreadList_Initialize();
1260 if ((me = strrchr(argv[0], sep)))
1261 me++; /* get the basename */
1264 programname = argv[0];
1266 if (control_block.options_func(argc, argv))
1271 xml_config_bend_start();
1273 if (control_block.inetd)
1276 ; /* no inetd on Windows */
1278 inetd_connection(control_block.default_proto);
1283 xml_config_add_listeners();
1286 add_listener("tcp:@:9999", 0);
1289 if (control_block.dynamic)
1290 signal(SIGCHLD, catchchld);
1293 if (pListener == NULL)
1299 signal(SIGTERM, normal_stop_handler);
1301 yaz_daemon(programname,
1302 (control_block.background ? YAZ_DAEMON_FORK : 0),
1303 daemon_handler, &pListener,
1304 *control_block.pid_fname ? control_block.pid_fname : 0,
1305 *control_block.setuid ? control_block.setuid : 0);
1309 static void option_copy(char *dst, const char *src)
1311 strncpy(dst, src ? src : "", BEND_NAME_MAX-1);
1312 dst[BEND_NAME_MAX-1] = '\0';
1315 int check_options(int argc, char **argv)
1320 yaz_log_init_level(yaz_log_mask_str(STAT_DEFAULT_LOG_LEVEL));
1324 while ((ret = options("1a:iszSTl:v:u:c:w:t:k:Kd:A:p:DC:f:m:r:",
1325 argv, argc, &arg)) != -2)
1330 if (add_listener(arg, 0))
1331 return 1; /* failed to create listener */
1334 control_block.one_shot = 1;
1335 control_block.dynamic = 0;
1338 control_block.default_proto = PROTO_Z3950;
1341 fprintf(stderr, "%s: SR protocol no longer supported\n", me);
1345 control_block.dynamic = 0;
1348 #if YAZ_POSIX_THREADS
1349 control_block.dynamic = 0;
1350 control_block.threads = 1;
1352 fprintf(stderr, "%s: Threaded mode not available.\n", me);
1357 option_copy(control_block.logfile, arg);
1358 yaz_log_init_file(control_block.logfile);
1362 fprintf(stderr, "%s: Specify time format for log file.\n", me);
1365 yaz_log_time_format(arg);
1368 yaz_log_init_level(yaz_log_mask_str(arg));
1372 option_copy(control_block.apdufile, arg);
1375 option_copy(control_block.setuid, arg);
1378 option_copy(control_block.configname, arg);
1381 option_copy(control_block.cert_fname, arg);
1384 option_copy(control_block.daemon_name, arg);
1387 if (!arg || !(r = atoi(arg)))
1389 fprintf(stderr, "%s: Specify positive timeout for -t.\n", me);
1392 control_block.idle_timeout = strchr(arg, 's') ? r : 60 * r;
1395 if (!arg || !(r = atoi(arg)))
1397 fprintf(stderr, "%s: Specify positive size for -k.\n", me);
1400 control_block.maxrecordsize = r * 1024;
1403 control_block.keepalive = 0;
1406 control_block.inetd = 1;
1416 max_sessions = atoi(arg);
1419 option_copy(control_block.pid_fname, arg);
1423 option_copy(control_block.xml_config, arg);
1425 fprintf(stderr, "%s: Option -f unsupported since YAZ is compiled without Libxml2 support\n", me);
1430 control_block.background = 1;
1433 if (!arg || !(r = atoi(arg)))
1435 fprintf(stderr, "%s: Specify positive size for -r.\n", me);
1438 yaz_log_init_max_size(r * 1024);
1441 fprintf(stderr, "Usage: %s [ -a <pdufile> -v <loglevel>"
1442 " -l <logfile> -u <user> -c <config> -t <minutes>"
1443 " -k <kilobytes> -d <daemon> -p <pidfile> -C certfile"
1444 " -zKiDST1 -m <time-format> -w <directory> <listener-addr>... ]\n", me);
1451 void statserv_sc_stop(yaz_sc_t s)
1453 statserv_closedown();
1457 int statserv_main(int argc, char **argv,
1458 bend_initresult *(*bend_init)(bend_initrequest *r),
1459 void (*bend_close)(void *handle))
1462 struct statserv_options_block *cb = &control_block;
1464 /* control block does not have service_name member on Unix */
1465 yaz_sc_t s = yaz_sc_create(
1467 cb->service_name, cb->service_display_name
1473 cb->bend_init = bend_init;
1474 cb->bend_close = bend_close;
1476 ret = yaz_sc_program(s, argc, argv, statserv_sc_main, statserv_sc_stop);
1484 * c-file-style: "Stroustrup"
1485 * indent-tabs-mode: nil
1487 * vim: shiftwidth=4 tabstop=8 expandtab