1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) 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);
173 static char *nmem_dup_xml_content(NMEM n, xmlNodePtr ptr)
177 int len = 1; /* start with 1, because of trailing 0 */
179 int first = 1; /* whitespace lead flag .. */
180 /* determine length */
181 for (p = ptr; p; p = p->next)
183 if (p->type == XML_TEXT_NODE)
184 len += xmlStrlen(p->content);
186 /* now allocate for the string */
187 str = (unsigned char *) nmem_malloc(n, len);
188 *str = '\0'; /* so we can use strcat */
189 for (p = ptr; p; p = p->next)
191 if (p->type == XML_TEXT_NODE)
196 while(*cp && yaz_isspace(*cp))
199 first = 0; /* reset if we got non-whitespace out */
201 strcat((char *)str, (const char *)cp); /* append */
204 /* remove trailing whitespace */
205 cp = strlen((const char *)str) + str;
206 while (cp != str && yaz_isspace(cp[-1]))
209 /* return resulting string */
215 static struct gfs_server * gfs_server_new(const char *id)
217 struct gfs_server *n = (struct gfs_server *)
218 nmem_malloc(gfs_nmem, sizeof(*n));
219 memcpy(&n->cb, &control_block, sizeof(control_block));
223 n->cql_transform = 0;
224 n->ccl_transform = 0;
225 n->server_node_ptr = 0;
229 n->id = nmem_strdup_null(gfs_nmem, id);
230 n->retrieval = yaz_retrieval_create();
236 static struct gfs_listen * gfs_listen_new(const char *id,
239 struct gfs_listen *n = (struct gfs_listen *)
240 nmem_malloc(gfs_nmem, sizeof(*n));
242 n->id = nmem_strdup(gfs_nmem, id);
246 n->address = nmem_strdup(gfs_nmem, address);
251 static void gfs_server_chdir(struct gfs_server *gfs)
255 if (chdir(gfs_root_dir))
256 yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s", gfs_root_dir);
260 if (chdir(gfs->directory))
261 yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s",
266 int control_association(association *assoc, const char *host, int force_open)
268 char vhost[128], *cp;
271 strncpy(vhost, host, 127);
273 cp = strchr(vhost, ':');
279 if (control_block.xml_config[0])
281 struct gfs_server *gfs;
282 for (gfs = gfs_server_list; gfs; gfs = gfs->next)
284 int listen_match = 0;
286 if ( !gfs->host || (host && gfs->host && !strcmp(host, gfs->host)))
288 if (!gfs->listen_ref)
293 for (i = 0; gfs->listen_ref[i] != -1; i++)
294 if (gfs->listen_ref[i] == assoc->client_chan->chan_id)
297 if (listen_match && host_match)
300 (assoc->last_control != &gfs->cb && assoc->backend))
302 statserv_setcontrol(assoc->last_control);
303 if (assoc->backend && assoc->init)
305 gfs_server_chdir(gfs);
306 (assoc->last_control->bend_close)(assoc->backend);
313 assoc->last_control = &gfs->cb;
314 statserv_setcontrol(&gfs->cb);
316 gfs_server_chdir(gfs);
322 statserv_setcontrol(0);
323 assoc->last_control = 0;
329 statserv_setcontrol(&control_block);
330 assoc->last_control = &control_block;
332 yaz_log(YLOG_DEBUG, "server select: config=%s",
333 assoc->last_control->configname);
335 assoc->maximumRecordSize = assoc->last_control->maxrecordsize;
336 assoc->preferredMessageSize = assoc->last_control->maxrecordsize;
337 cs_set_max_recv_bytes(assoc->client_link, assoc->maximumRecordSize);
342 static void xml_config_read(const char *base_path)
344 struct gfs_server **gfsp = &gfs_server_list;
345 struct gfs_listen **gfslp = &gfs_listen_list;
346 xmlNodePtr ptr = xml_config_get_root();
350 for (ptr = ptr->children; ptr; ptr = ptr->next)
352 struct _xmlAttr *attr;
353 if (ptr->type != XML_ELEMENT_NODE)
355 attr = ptr->properties;
356 if (!strcmp((const char *) ptr->name, "listen"))
359 <listen id="listenerid">tcp:@:9999</listen>
362 const char *address =
363 nmem_dup_xml_content(gfs_nmem, ptr->children);
364 for ( ; attr; attr = attr->next)
365 if (!xmlStrcmp(attr->name, BAD_CAST "id")
366 && attr->children && attr->children->type == XML_TEXT_NODE)
367 id = nmem_dup_xml_content(gfs_nmem, attr->children);
370 *gfslp = gfs_listen_new(id, address);
371 gfslp = &(*gfslp)->next;
372 *gfslp = 0; /* make listener list consistent for search */
375 else if (!strcmp((const char *) ptr->name, "server"))
377 xmlNodePtr ptr_server = ptr;
379 const char *listenref = 0;
381 struct gfs_server *gfs;
383 for ( ; attr; attr = attr->next)
384 if (!xmlStrcmp(attr->name, BAD_CAST "listenref")
385 && attr->children && attr->children->type == XML_TEXT_NODE)
386 listenref = nmem_dup_xml_content(gfs_nmem, attr->children);
387 else if (!xmlStrcmp(attr->name, BAD_CAST "id")
389 && attr->children->type == XML_TEXT_NODE)
390 id = nmem_dup_xml_content(gfs_nmem, attr->children);
392 yaz_log(YLOG_WARN, "Unknown attribute '%s' for server",
394 gfs = *gfsp = gfs_server_new(id);
395 gfs->server_node_ptr = ptr_server;
400 nmem_strsplit(gfs_nmem, ",", listenref, &refs, &num);
401 gfs->listen_ref = (int*) nmem_malloc(gfs_nmem,
402 sizeof(int) * (num + 1));
403 for (i = 0; i < num; i++)
406 struct gfs_listen *gl = gfs_listen_list;
407 gfs->listen_ref[i] = 0;
408 for (id_no = 1; gl; gl = gl->next, id_no++)
409 if (gl->id && !strcmp(gl->id, refs[i]))
411 gfs->listen_ref[i] = id_no;
415 yaz_log(YLOG_WARN, "Non-existent listenref '%s' "
416 "in server config element", refs[i]);
418 gfs->listen_ref[i] = -1;
420 for (ptr = ptr_server->children; ptr; ptr = ptr->next)
422 if (ptr->type != XML_ELEMENT_NODE)
424 if (!strcmp((const char *) ptr->name, "host"))
426 gfs->host = nmem_dup_xml_content(gfs_nmem,
429 else if (!strcmp((const char *) ptr->name, "config"))
432 strcpy(gfs->cb.configname,
433 nmem_dup_xml_content(gfs_nmem, ptr->children));
435 if (yaz_filepath_resolve(gfs->cb.configname,
436 base_path, 0, fpath))
437 strcpy(gfs->cb.configname, fpath);
439 else if (!strcmp((const char *) ptr->name, "cql2rpn"))
442 char *fname = nmem_dup_xml_content(gfs_nmem, ptr->children);
443 if (yaz_filepath_resolve(fname, base_path, 0, fpath))
446 gfs->cql_transform = cql_transform_open_fname(fname);
447 if (!gfs->cql_transform)
449 yaz_log(YLOG_FATAL|YLOG_ERRNO,
450 "open CQL transform file '%s'", fname);
454 else if (!strcmp((const char *) ptr->name, "ccl2rpn"))
456 char *fname, fpath[1024];
459 fname = nmem_dup_xml_content(gfs_nmem, ptr->children);
460 if (yaz_filepath_resolve(fname, base_path, 0, fpath))
463 if ((f = fopen(fname, "r")) == 0) {
464 yaz_log(YLOG_FATAL, "can't open CCL file '%s'", fname);
467 gfs->ccl_transform = ccl_qual_mk();
468 ccl_qual_file (gfs->ccl_transform, f);
471 else if (!strcmp((const char *) ptr->name, "directory"))
474 nmem_dup_xml_content(gfs_nmem, ptr->children);
476 else if (!strcmp((const char *) ptr->name, "docpath"))
479 nmem_dup_xml_content(gfs_nmem, ptr->children);
481 else if (!strcmp((const char *) ptr->name, "maximumrecordsize"))
483 gfs->cb.maxrecordsize = atoi(
484 nmem_dup_xml_content(gfs_nmem, ptr->children));
486 else if (!strcmp((const char *) ptr->name, "stylesheet"))
488 char *s = nmem_dup_xml_content(gfs_nmem, ptr->children);
489 gfs->stylesheet = (char *)
490 nmem_malloc(gfs_nmem, strlen(s) + 2);
491 sprintf(gfs->stylesheet, "/%s", s);
493 else if (!strcmp((const char *) ptr->name, "explain"))
495 ; /* being processed separately */
497 else if (!strcmp((const char *) ptr->name, "retrievalinfo"))
500 yaz_retrieval_set_path(gfs->retrieval, base_path);
501 if (yaz_retrieval_configure(gfs->retrieval, ptr))
503 yaz_log(YLOG_FATAL, "%s in config %s",
504 yaz_retrieval_get_error(gfs->retrieval),
505 control_block.xml_config);
511 yaz_log(YLOG_FATAL, "Unknown element '%s' in config %s",
512 ptr->name, control_block.xml_config);
516 gfsp = &(*gfsp)->next;
523 static int xml_config_open(void)
526 const char *fname = control_block.xml_config;
527 if (!getcwd(gfs_root_dir, FILENAME_MAX))
529 yaz_log(YLOG_WARN|YLOG_ERRNO, "getcwd failed");
530 gfs_root_dir[0] = '\0';
533 init_control_tls = 1;
534 current_control_tls = TlsAlloc();
535 #elif YAZ_POSIX_THREADS
536 init_control_tls = 1;
537 pthread_key_create(¤t_control_tls, 0);
540 gfs_nmem = nmem_create();
542 if (fname[0] == '\0')
547 xml_config_doc = xmlParseFile(fname);
550 yaz_log(YLOG_FATAL, "Could not parse %s", fname);
555 int noSubstitutions = xmlXIncludeProcess(xml_config_doc);
556 if (noSubstitutions == -1)
558 yaz_log(YLOG_WARN, "XInclude processing failed for config %s",
564 last_p = strrchr(fname,
573 WRBUF base_path = wrbuf_alloc();
574 wrbuf_write(base_path, fname, last_p - fname);
575 xml_config_read(wrbuf_cstr(base_path));
576 wrbuf_destroy(base_path);
584 static void xml_config_close(void)
589 xmlFreeDoc(xml_config_doc);
594 nmem_destroy(gfs_nmem);
596 if (init_control_tls)
597 TlsFree(current_control_tls);
598 #elif YAZ_POSIX_THREADS
599 if (init_control_tls)
600 pthread_key_delete(current_control_tls);
604 static int xml_config_add_listeners(void)
606 struct gfs_listen *gfs = gfs_listen_list;
610 for (id_no = 1; gfs; gfs = gfs->next, id_no++)
612 if (!ret && gfs->address)
613 ret = add_listener(gfs->address, id_no);
618 static void xml_config_bend_start(void)
620 if (control_block.xml_config[0])
622 struct gfs_server *gfs = gfs_server_list;
623 for (; gfs; gfs = gfs->next)
625 yaz_log(YLOG_DEBUG, "xml_config_bend_start config=%s",
627 statserv_setcontrol(&gfs->cb);
628 if (control_block.bend_start)
630 gfs_server_chdir(gfs);
631 (control_block.bend_start)(&gfs->cb);
637 yaz_log(YLOG_DEBUG, "xml_config_bend_start default config");
638 statserv_setcontrol(&control_block);
639 if (control_block.bend_start)
640 (*control_block.bend_start)(&control_block);
644 static void xml_config_bend_stop(void)
646 if (control_block.xml_config[0])
648 struct gfs_server *gfs = gfs_server_list;
649 for (; gfs; gfs = gfs->next)
651 yaz_log(YLOG_DEBUG, "xml_config_bend_stop config=%s",
653 statserv_setcontrol(&gfs->cb);
654 if (control_block.bend_stop)
655 (control_block.bend_stop)(&gfs->cb);
660 yaz_log(YLOG_DEBUG, "xml_config_bend_stop default config");
661 statserv_setcontrol(&control_block);
662 if (control_block.bend_stop)
663 (*control_block.bend_stop)(&control_block);
667 static void remove_listeners(void);
670 * handle incoming connect requests.
671 * The dynamic mode is a bit tricky mostly because we want to avoid
672 * doing all of the listening and accepting in the parent - it's
677 typedef struct _ThreadList ThreadList;
686 static ThreadList *pFirstThread;
687 static CRITICAL_SECTION Thread_CritSect;
688 static BOOL bInitialized = FALSE;
690 static void ThreadList_Initialize()
692 /* Initialize the critical Sections */
693 InitializeCriticalSection(&Thread_CritSect);
695 /* Set the first thraed */
698 /* we have been initialized */
702 static void statserv_add(HANDLE hThread, IOCHAN pIOChannel)
704 /* Only one thread can go through this section at a time */
705 EnterCriticalSection(&Thread_CritSect);
708 /* Lets create our new object */
709 ThreadList *pNewThread = (ThreadList *)malloc(sizeof(ThreadList));
710 pNewThread->hThread = hThread;
711 pNewThread->pIOChannel = pIOChannel;
712 pNewThread->pNext = pFirstThread;
713 pFirstThread = pNewThread;
715 /* Lets let somebody else create a new object now */
716 LeaveCriticalSection(&Thread_CritSect);
720 void statserv_remove(IOCHAN pIOChannel)
722 /* Only one thread can go through this section at a time */
723 EnterCriticalSection(&Thread_CritSect);
726 ThreadList *pCurrentThread = pFirstThread;
727 ThreadList *pNextThread;
728 ThreadList *pPrevThread =NULL;
730 /* Step through all the threads */
731 for (; pCurrentThread != NULL; pCurrentThread = pNextThread)
733 /* We only need to compare on the IO Channel */
734 if (pCurrentThread->pIOChannel == pIOChannel)
736 /* We have found the thread we want to delete */
737 /* First of all reset the next pointers */
738 if (pPrevThread == NULL)
739 pFirstThread = pCurrentThread->pNext;
741 pPrevThread->pNext = pCurrentThread->pNext;
743 /* All we need todo now is delete the memory */
744 free(pCurrentThread);
746 /* No need to look at any more threads */
751 /* We need to look at another thread */
752 pNextThread = pCurrentThread->pNext;
753 pPrevThread = pCurrentThread;
757 /* Lets let somebody else remove an object now */
758 LeaveCriticalSection(&Thread_CritSect);
762 /* WIN32 statserv_closedown */
763 static void statserv_closedown()
765 /* Shouldn't do anything if we are not initialized */
769 HANDLE *pThreadHandles = NULL;
771 /* We need to stop threads adding and removing while we */
772 /* start the closedown process */
773 EnterCriticalSection(&Thread_CritSect);
776 /* We have exclusive access to the thread stuff now */
777 /* Y didn't i use a semaphore - Oh well never mind */
778 ThreadList *pCurrentThread = pFirstThread;
780 /* Before we do anything else, we need to shutdown the listener */
781 if (pListener != NULL)
782 iochan_destroy(pListener);
784 for (; pCurrentThread != NULL; pCurrentThread = pCurrentThread->pNext)
786 /* Just destroy the IOCHAN, that should do the trick */
787 iochan_destroy(pCurrentThread->pIOChannel);
788 closesocket(pCurrentThread->pIOChannel->fd);
790 /* Keep a running count of our handles */
796 HANDLE *pCurrentHandle ;
798 /* Allocate the thread handle array */
799 pThreadHandles = (HANDLE *)malloc(sizeof(HANDLE) * iHandles);
800 pCurrentHandle = pThreadHandles;
802 for (pCurrentThread = pFirstThread;
803 pCurrentThread != NULL;
804 pCurrentThread = pCurrentThread->pNext, pCurrentHandle++)
806 /* Just the handle */
807 *pCurrentHandle = pCurrentThread->hThread;
811 /* We can now leave the critical section */
812 LeaveCriticalSection(&Thread_CritSect);
815 /* Now we can really do something */
818 yaz_log(log_server, "waiting for %d to die", iHandles);
819 /* This will now wait, until all the threads close */
820 WaitForMultipleObjects(iHandles, pThreadHandles, TRUE, INFINITE);
822 /* Free the memory we allocated for the handle array */
823 free(pThreadHandles);
826 xml_config_bend_stop();
827 /* No longer require the critical section, since all threads are dead */
828 DeleteCriticalSection(&Thread_CritSect);
833 void __cdecl event_loop_thread(IOCHAN iochan)
835 iochan_event_loop(&iochan, 0);
839 static void listener(IOCHAN h, int event)
841 COMSTACK line = (COMSTACK) iochan_getdata(h);
842 IOCHAN parent_chan = line->user;
847 if (event == EVENT_INPUT)
852 if ((res = cs_listen(line, 0, 0)) < 0)
854 yaz_log(YLOG_FATAL|YLOG_ERRNO, "cs_listen failed");
858 return; /* incomplete */
859 yaz_log(YLOG_DEBUG, "listen ok");
860 new_line = cs_accept(line);
863 yaz_log(YLOG_FATAL, "Accept failed.");
866 yaz_log(YLOG_DEBUG, "Accept ok");
868 if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session,
869 EVENT_INPUT, parent_chan->chan_id)))
871 yaz_log(YLOG_FATAL, "Failed to create iochan");
876 yaz_log(YLOG_DEBUG, "Creating association");
877 if (!(newas = create_association(new_chan, new_line,
878 control_block.apdufile)))
880 yaz_log(YLOG_FATAL, "Failed to create new assoc.");
884 newas->cs_get_mask = EVENT_INPUT;
885 newas->cs_put_mask = 0;
886 newas->cs_accept_mask = 0;
888 yaz_log(YLOG_DEBUG, "Setting timeout %d", control_block.idle_timeout);
889 iochan_setdata(new_chan, newas);
890 iochan_settimeout(new_chan, 60);
892 /* Now what we need todo is create a new thread with this iochan as
894 newHandle = (HANDLE) _beginthread(event_loop_thread, 0, new_chan);
895 if (newHandle == (HANDLE) -1)
898 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create new thread.");
902 /* We successfully created the thread, so add it to the list */
903 statserv_add(newHandle, new_chan);
905 yaz_log(YLOG_DEBUG, "Created new thread, id = %ld iochan %p",(long) newHandle, new_chan);
906 iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
910 yaz_log(YLOG_FATAL, "Bad event on listener.");
918 /* To save having an #ifdef in event_loop we need to
919 define this empty function
921 void statserv_remove(IOCHAN pIOChannel)
925 static void statserv_closedown(void)
929 xml_config_bend_stop();
930 for (p = pListener; p; p = p->next)
937 static void *new_session(void *vp);
938 static int no_sessions = 0;
941 static void listener(IOCHAN h, int event)
943 COMSTACK line = (COMSTACK) iochan_getdata(h);
946 if (event == EVENT_INPUT)
949 if ((res = cs_listen_check(line, 0, 0, control_block.check_ip,
950 control_block.daemon_name)) < 0)
952 yaz_log(YLOG_WARN|YLOG_ERRNO, "cs_listen failed");
957 yaz_log(YLOG_WARN, "cs_listen incomplete");
960 new_line = cs_accept(line);
963 yaz_log(YLOG_FATAL, "Accept failed.");
964 iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
968 if (control_block.one_shot)
971 yaz_log(log_sessiondetail, "Connect from %s", cs_addrstr(new_line));
974 if (control_block.dynamic)
976 if ((res = fork()) < 0)
978 yaz_log(YLOG_FATAL|YLOG_ERRNO, "fork");
982 else if (res == 0) /* child */
987 for (pp = pListener; pp; pp = iochan_getnext(pp))
989 COMSTACK l = (COMSTACK)iochan_getdata(pp);
993 sprintf(nbuf, "%s(%d)", me, no_sessions);
994 yaz_log_init_prefix(nbuf);
995 /* ensure that bend_stop is not called when each child exits -
996 only for the main process .. */
997 control_block.bend_stop = 0;
1006 if (control_block.threads)
1008 #if YAZ_POSIX_THREADS
1009 pthread_t child_thread;
1010 pthread_create(&child_thread, 0, new_session, new_line);
1011 pthread_detach(child_thread);
1013 new_session(new_line);
1017 new_session(new_line);
1019 else if (event == EVENT_TIMEOUT)
1021 yaz_log(log_server, "Shutting down listener.");
1026 yaz_log(YLOG_FATAL, "Bad event on listener.");
1031 static void *new_session(void *vp)
1036 COMSTACK new_line = (COMSTACK) vp;
1037 IOCHAN parent_chan = (IOCHAN) new_line->user;
1039 unsigned cs_get_mask, cs_accept_mask, mask =
1040 ((new_line->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) |
1041 ((new_line->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0);
1045 cs_accept_mask = mask; /* accept didn't complete */
1050 cs_accept_mask = 0; /* accept completed. */
1051 cs_get_mask = mask = EVENT_INPUT;
1054 if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session, mask,
1055 parent_chan->chan_id)))
1057 yaz_log(YLOG_FATAL, "Failed to create iochan");
1060 if (!(newas = create_association(new_chan, new_line,
1061 control_block.apdufile)))
1063 yaz_log(YLOG_FATAL, "Failed to create new assoc.");
1066 newas->cs_accept_mask = cs_accept_mask;
1067 newas->cs_get_mask = cs_get_mask;
1069 iochan_setdata(new_chan, newas);
1070 iochan_settimeout(new_chan, 60);
1072 a = cs_addrstr(new_line);
1076 yaz_log_xml_errors(0, YLOG_WARN);
1077 yaz_log(log_session, "Session - OK %d %s PID=%ld",
1078 no_sessions, a ? a : "[Unknown]", (long) getpid());
1079 if (max_sessions && no_sessions >= max_sessions)
1080 control_block.one_shot = 1;
1081 if (control_block.threads)
1083 iochan_event_loop(&new_chan, 0);
1087 new_chan->next = pListener;
1088 pListener = new_chan;
1096 static void inetd_connection(int what)
1103 if ((line = cs_createbysocket(0, tcpip_type, 0, what)))
1105 if ((chan = iochan_create(cs_fileno(line), ir_session, EVENT_INPUT,
1108 if ((assoc = create_association(chan, line,
1109 control_block.apdufile)))
1111 iochan_setdata(chan, assoc);
1112 iochan_settimeout(chan, 60);
1113 addr = cs_addrstr(line);
1114 yaz_log(log_sessiondetail, "Inetd association from %s",
1115 addr ? addr : "[UNKNOWN]");
1116 assoc->cs_get_mask = EVENT_INPUT;
1120 yaz_log(YLOG_FATAL, "Failed to create association structure");
1122 chan->next = pListener;
1127 yaz_log(YLOG_FATAL, "Failed to create iochan");
1132 yaz_log(YLOG_ERRNO|YLOG_FATAL, "Failed to create comstack on socket 0");
1137 * Set up a listening endpoint, and give it to the event-handler.
1139 static int add_listener(char *where, int listen_id)
1146 if (control_block.dynamic)
1148 else if (control_block.threads)
1153 yaz_log(log_server, "Adding %s listener on %s id=%d PID=%ld", mode, where,
1154 listen_id, (long) getpid());
1156 l = cs_create_host(where, 2, &ap);
1159 yaz_log(YLOG_FATAL, "Failed to listen on %s", where);
1162 if (*control_block.cert_fname)
1163 cs_set_ssl_certificate_file(l, control_block.cert_fname);
1165 if (cs_bind(l, ap, CS_SERVER) < 0)
1167 if (cs_errno(l) == CSYSERR)
1168 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to bind to %s", where);
1170 yaz_log(YLOG_FATAL, "Failed to bind to %s: %s", where,
1175 if (!(lst = iochan_create(cs_fileno(l), listener, EVENT_INPUT |
1176 EVENT_EXCEPT, listen_id)))
1178 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create IOCHAN-type");
1182 iochan_setdata(lst, l); /* user-defined data for listener is COMSTACK */
1183 l->user = lst; /* user-defined data for COMSTACK is listener chan */
1185 /* Add listener to chain */
1186 lst->next = pListener;
1191 static void remove_listeners(void)
1193 IOCHAN l = pListener;
1194 for (; l; l = l->next)
1199 /* UNIX only (for windows we don't need to catch the signals) */
1200 static void catchchld(int num)
1202 while (waitpid(-1, 0, WNOHANG) > 0)
1204 signal(SIGCHLD, catchchld);
1208 statserv_options_block *statserv_getcontrol(void)
1211 if (init_control_tls)
1212 return (statserv_options_block *) TlsGetValue(current_control_tls);
1214 return &control_block;
1215 #elif YAZ_POSIX_THREADS
1216 if (init_control_tls)
1217 return (statserv_options_block *)
1218 pthread_getspecific(current_control_tls);
1220 return &control_block;
1222 if (current_control_block)
1223 return current_control_block;
1224 return &control_block;
1228 void statserv_setcontrol(statserv_options_block *block)
1230 if (gfs_root_dir[0])
1232 if (chdir(gfs_root_dir))
1233 yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s", gfs_root_dir);
1236 if (init_control_tls)
1237 TlsSetValue(current_control_tls, block);
1238 #elif YAZ_POSIX_THREADS
1239 if (init_control_tls)
1240 pthread_setspecific(current_control_tls, block);
1242 current_control_block = block;
1246 static void statserv_reset(void)
1250 static int sig_received = 0;
1253 static void normal_stop_handler(int num)
1259 static void daemon_handler(void *data)
1261 IOCHAN *pListener = data;
1262 iochan_event_loop(pListener, &sig_received);
1265 static void show_version(void)
1267 char vstr[20], sha1_str[41];
1269 yaz_version(vstr, sha1_str);
1270 printf("YAZ version: %s %s\n", YAZ_VERSION, YAZ_VERSION_SHA1);
1271 if (strcmp(sha1_str, YAZ_VERSION_SHA1))
1272 printf("YAZ DLL/SO: %s %s\n", vstr, sha1_str);
1276 static int statserv_sc_main(yaz_sc_t s, int argc, char **argv)
1280 /* We need to initialize the thread list */
1281 ThreadList_Initialize();
1291 if ((me = strrchr(argv[0], sep)))
1292 me++; /* get the basename */
1295 programname = argv[0];
1297 if (control_block.options_func(argc, argv))
1300 if (xml_config_open())
1303 xml_config_bend_start();
1305 if (control_block.inetd)
1308 ; /* no inetd on Windows */
1310 inetd_connection(control_block.default_proto);
1315 if (xml_config_add_listeners())
1319 add_listener("tcp:@:9999", 0);
1322 if (control_block.dynamic)
1323 signal(SIGCHLD, catchchld);
1326 if (pListener == NULL)
1332 signal(SIGTERM, normal_stop_handler);
1334 yaz_daemon(programname,
1335 (control_block.background ? YAZ_DAEMON_FORK : 0),
1336 daemon_handler, &pListener,
1337 *control_block.pid_fname ? control_block.pid_fname : 0,
1338 *control_block.setuid ? control_block.setuid : 0);
1341 yaz_log(YLOG_LOG, "Received SIGTERM PID=%ld", (long) getpid());
1346 static void option_copy(char *dst, const char *src)
1348 strncpy(dst, src ? src : "", BEND_NAME_MAX-1);
1349 dst[BEND_NAME_MAX-1] = '\0';
1352 int check_options(int argc, char **argv)
1357 yaz_log_init_level(yaz_log_mask_str(STAT_DEFAULT_LOG_LEVEL));
1361 while ((ret = options("1a:iszSTl:v:u:c:w:t:k:Kd:A:p:DC:f:m:r:V",
1362 argv, argc, &arg)) != -2)
1367 if (add_listener(arg, 0))
1368 return 1; /* failed to create listener */
1371 control_block.one_shot = 1;
1372 control_block.dynamic = 0;
1375 control_block.default_proto = PROTO_Z3950;
1378 fprintf(stderr, "%s: SR protocol no longer supported\n", me);
1382 control_block.dynamic = 0;
1385 #if YAZ_POSIX_THREADS
1386 control_block.dynamic = 0;
1387 control_block.threads = 1;
1389 fprintf(stderr, "%s: Threaded mode not available.\n", me);
1394 option_copy(control_block.logfile, arg);
1395 yaz_log_init_file(control_block.logfile);
1399 fprintf(stderr, "%s: Specify time format for log file.\n", me);
1402 yaz_log_time_format(arg);
1405 yaz_log_init_level(yaz_log_mask_str(arg));
1409 option_copy(control_block.apdufile, arg);
1412 option_copy(control_block.setuid, arg);
1415 option_copy(control_block.configname, arg);
1418 option_copy(control_block.cert_fname, arg);
1421 option_copy(control_block.daemon_name, arg);
1424 if (!arg || !(r = atoi(arg)))
1426 fprintf(stderr, "%s: Specify positive timeout for -t.\n", me);
1429 control_block.idle_timeout = strchr(arg, 's') ? r : 60 * r;
1432 if (!arg || !(r = atoi(arg)))
1434 fprintf(stderr, "%s: Specify positive size for -k.\n", me);
1437 control_block.maxrecordsize = r * 1024;
1440 control_block.keepalive = 0;
1443 control_block.inetd = 1;
1453 max_sessions = atoi(arg);
1456 option_copy(control_block.pid_fname, arg);
1460 option_copy(control_block.xml_config, arg);
1462 fprintf(stderr, "%s: Option -f unsupported since YAZ is compiled without Libxml2 support\n", me);
1467 control_block.background = 1;
1470 if (!arg || !(r = atoi(arg)))
1472 fprintf(stderr, "%s: Specify positive size for -r.\n", me);
1475 yaz_log_init_max_size(r * 1024);
1481 fprintf(stderr, "Usage: %s [ -a <pdufile> -v <loglevel>"
1482 " -l <logfile> -u <user> -c <config> -t <minutes>"
1483 " -k <kilobytes> -d <daemon> -p <pidfile> -C certfile"
1484 " -zKiDSTV1 -m <time-format> -w <directory> <listener-addr>... ]\n", me);
1491 void statserv_sc_stop(yaz_sc_t s)
1493 statserv_closedown();
1497 int statserv_main(int argc, char **argv,
1498 bend_initresult *(*bend_init)(bend_initrequest *r),
1499 void (*bend_close)(void *handle))
1502 struct statserv_options_block *cb = &control_block;
1504 /* control block does not have service_name member on Unix */
1505 yaz_sc_t s = yaz_sc_create(
1507 cb->service_name, cb->service_display_name
1513 cb->bend_init = bend_init;
1514 cb->bend_close = bend_close;
1516 ret = yaz_sc_program(s, argc, argv, statserv_sc_main, statserv_sc_stop);
1524 * c-file-style: "Stroustrup"
1525 * indent-tabs-mode: nil
1527 * vim: shiftwidth=4 tabstop=8 expandtab