2 * detail.c Process the detail file
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 * Copyright 2007 The FreeRADIUS server project
21 * Copyright 2007 Alan DeKok <aland@deployingradius.com>
26 #include <freeradius-devel/radiusd.h>
27 #include <freeradius-devel/modules.h>
28 #include <freeradius-devel/detail.h>
29 #include <freeradius-devel/process.h>
30 #include <freeradius-devel/rad_assert.h>
32 #ifdef HAVE_SYS_STAT_H
44 #define USEC (1000000)
46 static FR_NAME_NUMBER state_names[] = {
47 { "unopened", STATE_UNOPENED },
48 { "unlocked", STATE_UNLOCKED },
49 { "header", STATE_HEADER },
50 { "reading", STATE_READING },
51 { "queued", STATE_QUEUED },
52 { "running", STATE_RUNNING },
53 { "no-reply", STATE_NO_REPLY },
54 { "replied", STATE_REPLIED },
61 * If we're limiting outstanding packets, then mark the response
64 int detail_send(rad_listen_t *listener, REQUEST *request)
66 #ifdef WITH_DETAIL_THREAD
69 listen_detail_t *data = listener->data;
71 rad_assert(request->listener == listener);
72 rad_assert(listener->send == detail_send);
75 * This request timed out. Remember that, and tell the
76 * caller it's OK to read more "detail" file stuff.
78 if (request->reply->code == 0) {
79 data->delay_time = data->retry_interval * USEC;
81 data->state = STATE_NO_REPLY;
83 RDEBUG("detail (%s): No response to request. Will retry in %d seconds",
84 data->name, data->retry_interval);
89 * We call gettimeofday a lot. But it should be OK,
90 * because there's nothing else to do.
92 gettimeofday(&now, NULL);
95 * If we haven't sent a packet in the last second, reset
99 if (timercmp(&data->last_packet, &now, <)) {
100 data->has_rtt = false;
105 * Only one detail packet may be outstanding at a time,
106 * so it's safe to update some entries in the detail
109 * We keep smoothed round trip time (SRTT), but not round
110 * trip timeout (RTO). We use SRTT to calculate a rough
113 rtt = now.tv_sec - request->packet->timestamp.tv_sec;
116 rtt -= request->packet->timestamp.tv_usec;
119 * If we're proxying, the RTT is our processing time,
120 * plus the network delay there and back, plus the time
121 * on the other end to process the packet. Ideally, we
122 * should remove the network delays from the RTT, but we
123 * don't know what they are.
125 * So, to be safe, we over-estimate the total cost of
126 * processing the packet.
128 if (!data->has_rtt) {
129 data->has_rtt = true;
131 data->rttvar = rtt / 2;
134 data->rttvar -= data->rttvar >> 2;
135 data->rttvar += (data->srtt - rtt);
136 data->srtt -= data->srtt >> 3;
137 data->srtt += rtt >> 3;
141 * Calculate the time we wait before sending the next
144 * rtt / (rtt + delay) = load_factor / 100
146 data->delay_time = (data->srtt * (100 - data->load_factor)) / (data->load_factor);
149 * Cap delay at no less than 4 packets/s. If the
150 * end system can't handle this, then it's very
153 if (data->delay_time > (USEC / 4)) data->delay_time= USEC / 4;
155 RDEBUG3("detail (%s): Received response for request %d. Will read the next packet in %d seconds",
156 data->name, request->number, data->delay_time / USEC);
158 data->last_packet = now;
160 data->state = STATE_REPLIED;
164 #ifdef WITH_DETAIL_THREAD
165 if (write(data->child_pipe[1], &c, 1) < 0) {
166 RERROR("detail (%s): Failed writing ack to reader thread: %s", data->name, fr_syserror(errno));
169 radius_signal_self(RADIUS_SIGNAL_SELF_DETAIL);
177 * Open the detail file, if we can.
179 * FIXME: create it, if it's not already there, so that the main
180 * server select() will wake us up if there's anything to read.
182 static int detail_open(rad_listen_t *this)
185 listen_detail_t *data = this->data;
187 rad_assert(data->state == STATE_UNOPENED);
188 data->delay_time = USEC;
191 * Open detail.work first, so we don't lose
192 * accounting packets. It's probably better to
193 * duplicate them than to lose them.
195 * Note that we're not writing to the file, but
196 * we've got to open it for writing in order to
197 * establish the lock, to prevent rlm_detail from
200 * This also means that if we're doing globbing,
201 * this file will be read && processed before the
202 * file globbing is done.
205 data->work_fd = open(data->filename_work, O_RDWR);
206 if (data->work_fd < 0) {
213 char const *filename;
216 DEBUG2("detail (%s): Polling for detail file", data->name);
218 memset(&files, 0, sizeof(files));
219 if (glob(data->filename, 0, NULL, &files) != 0) {
226 * Loop over the glob'd files, looking for the
231 for (i = 0; i < files.gl_pathc; i++) {
232 if (stat(files.gl_pathv[i], &st) < 0) continue;
234 if ((i == 0) || (st.st_ctime < chtime)) {
235 chtime = st.st_ctime;
240 if (found < 0) goto noop;
243 * Rename detail to detail.work
245 filename = files.gl_pathv[found];
247 DEBUG("detail (%s): Renaming %s -> %s", data->name, filename, data->filename_work);
248 if (rename(filename, data->filename_work) < 0) {
249 ERROR("detail (%s): Failed renaming %s to %s: %s",
250 data->name, filename, data->filename_work, fr_syserror(errno));
254 globfree(&files); /* Shouldn't be using anything in files now */
257 * And try to open the filename.
259 data->work_fd = open(data->filename_work, O_RDWR);
260 if (data->work_fd < 0) return 0;
262 } /* else detail.work existed, and we opened it */
264 rad_assert(data->vps == NULL);
265 rad_assert(data->fp == NULL);
267 data->state = STATE_UNLOCKED;
269 data->client_ip.af = AF_UNSPEC;
271 data->offset = data->last_offset = data->timestamp_offset = 0;
274 data->done_entry = false;
281 * FIXME: add a configuration "exit when done" so that the detail
282 * file reader can be used as a one-off tool to update stuff.
284 * The time sequence for reading from the detail file is:
286 * t_0 signalled that the server is idle, and we
287 * can read from the detail file.
289 * t_rtt the packet has been processed successfully,
290 * wait for t_delay to enforce load factor.
292 * t_rtt + t_delay wait for signal that the server is idle.
295 #ifndef WITH_DETAIL_THREAD
296 static RADIUS_PACKET *detail_poll(rad_listen_t *listener);
298 int detail_recv(rad_listen_t *listener)
300 RADIUS_PACKET *packet;
301 listen_detail_t *data = listener->data;
302 RAD_REQUEST_FUNP fun = NULL;
305 * We may be in the main thread. It needs to update the
306 * timers before we try to read from the file again.
308 if (data->signal) return 0;
310 packet = detail_poll(listener);
311 if (!packet) return -1;
313 if (DEBUG_ENABLED2) {
317 DEBUG2("detail (%s): Read packet from %s", data->name, data->filename_work);
319 for (vp = fr_cursor_init(&cursor, &packet->vps);
321 vp = fr_cursor_next(&cursor)) {
326 switch (packet->code) {
327 case PW_CODE_ACCOUNTING_REQUEST:
328 fun = rad_accounting;
331 case PW_CODE_COA_REQUEST:
332 case PW_CODE_DISCONNECT_REQUEST:
338 data->state = STATE_REPLIED;
343 * Don't bother doing limit checks, etc.
345 if (!request_receive(NULL, listener, packet, &data->detail_client, fun)) {
347 data->state = STATE_NO_REPLY; /* try again later */
354 int detail_recv(rad_listen_t *listener)
358 RADIUS_PACKET *packet;
359 listen_detail_t *data = listener->data;
360 RAD_REQUEST_FUNP fun = NULL;
363 * Block until there's a packet ready.
365 rcode = read(data->master_pipe[0], &packet, sizeof(packet));
366 if (rcode <= 0) return rcode;
368 if (DEBUG_ENABLED2) {
372 DEBUG2("detail (%s): Read packet from %s", data->name, data->filename_work);
373 for (vp = fr_cursor_init(&cursor, &packet->vps);
375 vp = fr_cursor_next(&cursor)) {
379 rad_assert(packet != NULL);
381 switch (packet->code) {
382 case PW_CODE_ACCOUNTING_REQUEST:
383 fun = rad_accounting;
386 case PW_CODE_COA_REQUEST:
387 case PW_CODE_DISCONNECT_REQUEST:
392 data->state = STATE_REPLIED;
396 if (!request_receive(NULL, listener, packet, &data->detail_client, fun)) {
397 data->state = STATE_NO_REPLY; /* try again later */
401 if (write(data->child_pipe[1], &c, 1) < 0) {
402 ERROR("detail (%s): Failed writing ack to reader thread: %s", data->name,
408 * Wait for the child thread to write an answer to the pipe
414 static RADIUS_PACKET *detail_poll(rad_listen_t *listener)
416 char key[256], op[8], value[1024];
419 RADIUS_PACKET *packet;
421 listen_detail_t *data = listener->data;
423 switch (data->state) {
426 rad_assert(data->work_fd < 0);
428 if (!detail_open(listener)) return NULL;
430 rad_assert(data->state == STATE_UNLOCKED);
431 rad_assert(data->work_fd >= 0);
436 * Try to lock fd. If we can't, return.
437 * If we can, continue. This means that
438 * the server doesn't block while waiting
439 * for the lock to open...
443 * Note that we do NOT block waiting for
444 * the lock. We've re-named the file
445 * above, so we've already guaranteed
446 * that any *new* detail writer will not
447 * be opening this file. The only
448 * purpose of the lock is to catch a race
449 * condition where the execution
450 * "ping-pongs" between radiusd &
453 if (rad_lockfd_nonblock(data->work_fd, 0) < 0) {
455 * Close the FD. The main loop
456 * will wake up in a second and
459 close(data->work_fd);
462 data->state = STATE_UNOPENED;
467 * Only open for writing if we're
468 * marking requests as completed.
470 data->fp = fdopen(data->work_fd, data->track ? "r+" : "r");
472 ERROR("detail (%s): FATAL: Failed to re-open detail file: %s",
473 data->name, fr_syserror(errno));
478 * Look for the header
480 data->state = STATE_HEADER;
481 data->delay_time = USEC;
488 data->done_entry = false;
489 data->timestamp_offset = 0;
493 data->state = STATE_UNOPENED;
500 if (fstat(data->work_fd, &buf) < 0) {
501 ERROR("detail (%s): Failed to stat detail file: %s",
502 data->name, fr_syserror(errno));
506 if (((off_t) ftell(data->fp)) == buf.st_size) {
512 * End of file. Delete it, and re-set
515 if (feof(data->fp)) {
517 DEBUG("detail (%s): Unlinking %s", data->name, data->filename_work);
518 unlink(data->filename_work);
519 if (data->fp) fclose(data->fp);
522 data->state = STATE_UNOPENED;
523 rad_assert(data->vps == NULL);
525 if (data->one_shot) {
526 INFO("detail (%s): Finished reading \"one shot\" detail file - Exiting", data->name);
527 radius_signal_self(RADIUS_SIGNAL_SELF_EXIT);
534 * Else go read something.
539 * Read more value-pair's, unless we're
540 * at EOF. In that case, queue whatever
544 if (data->fp && !feof(data->fp)) break;
545 data->state = STATE_QUEUED;
553 * Periodically check what's going on.
554 * If the request is taking too long,
558 if (time(NULL) < (data->running + (int)data->retry_interval)) {
562 DEBUG("detail (%s): No response to detail request. Retrying", data->name);
566 * If there's no reply, keep
567 * retransmitting the current packet
571 data->state = STATE_QUEUED;
575 * We have a reply. Clean up the old
576 * request, and go read another one.
580 rad_assert(data->fp != NULL);
582 if (fseek(data->fp, data->timestamp_offset, SEEK_SET) < 0) {
583 WARN("detail (%s): Failed seeking to timestamp offset: %s",
584 data->name, fr_syserror(errno));
585 } else if (fwrite("\tDone", 1, 5, data->fp) < 5) {
586 WARN("detail (%s): Failed marking request as done: %s",
587 data->name, fr_syserror(errno));
588 } else if (fflush(data->fp) != 0) {
589 WARN("detail (%s): Failed flushing marked detail file to disk: %s",
590 data->name, fr_syserror(errno));
593 if (fseek(data->fp, data->offset, SEEK_SET) < 0) {
594 WARN("detail (%s): Failed seeking to next detail request: %s",
595 data->name, fr_syserror(errno));
599 fr_pair_list_free(&data->vps);
600 data->state = STATE_HEADER;
604 fr_cursor_init(&cursor, &data->vps);
607 * Read a header, OR a value-pair.
609 while (fgets(buffer, sizeof(buffer), data->fp)) {
610 data->last_offset = data->offset;
611 data->offset = ftell(data->fp); /* for statistics */
614 * Badly formatted file: delete it.
616 * FIXME: Maybe flag an error?
618 if (!strchr(buffer, '\n')) {
619 fr_pair_list_free(&data->vps);
624 * We're reading VP's, and got a blank line.
627 if ((data->state == STATE_READING) &&
628 (buffer[0] == '\n')) {
629 data->state = STATE_QUEUED;
634 * Look for date/time header, and read VP's if
635 * found. If not, keep reading lines until we
638 if (data->state == STATE_HEADER) {
641 if (sscanf(buffer, "%*s %*s %*d %*d:%*d:%*d %d", &y)) {
642 data->state = STATE_READING;
648 * We have a full "attribute = value" line.
649 * If it doesn't look reasonable, skip it.
651 * FIXME: print an error for badly formatted attributes?
653 if (sscanf(buffer, "%255s %7s %1023s", key, op, value) != 3) {
654 WARN("detail (%s): Skipping badly formatted line %s", data->name, buffer);
659 * Should be =, :=, +=, ...
661 if (!strchr(op, '=')) continue;
664 * Skip non-protocol attributes.
666 if (!strcasecmp(key, "Request-Authenticator")) continue;
669 * Set the original client IP address, based on
670 * what's in the detail file.
672 * Hmm... we don't set the server IP address.
675 if (!strcasecmp(key, "Client-IP-Address")) {
676 data->client_ip.af = AF_INET;
677 if (ip_hton(&data->client_ip, AF_INET, value, false) < 0) {
678 ERROR("detail (%s): Failed parsing Client-IP-Address", data->name);
680 fr_pair_list_free(&data->vps);
687 * The original time at which we received the
688 * packet. We need this to properly calculate
691 if (!strcasecmp(key, "Timestamp")) {
692 data->timestamp = atoi(value);
693 data->timestamp_offset = data->last_offset;
695 vp = fr_pair_afrom_num(data, PW_PACKET_ORIGINAL_TIMESTAMP, 0);
697 vp->vp_date = (uint32_t) data->timestamp;
699 fr_cursor_insert(&cursor, vp);
704 if (!strcasecmp(key, "Donestamp")) {
705 data->timestamp = atoi(value);
706 data->done_entry = true;
713 * FIXME: do we want to check for non-protocol
714 * attributes like radsqlrelay does?
717 if ((fr_pair_list_afrom_str(data, buffer, &vp) > 0) &&
719 fr_cursor_merge(&cursor, vp);
724 * Some kind of error.
726 * FIXME: Leave the file in-place, and warn the
729 if (ferror(data->fp)) goto cleanup;
735 * Process the packet.
738 if (data->done_entry) {
739 DEBUG2("detail (%s): Skipping record for timestamp %lu", data->name, data->timestamp);
740 fr_pair_list_free(&data->vps);
741 data->state = STATE_HEADER;
748 * The writer doesn't check that the record was
749 * completely written. If the disk is full, this can
750 * result in a truncated record. When that happens,
753 if (data->state != STATE_QUEUED) {
754 ERROR("detail (%s): Truncated record: treating it as EOF for detail file %s",
755 data->name, data->filename_work);
756 fr_pair_list_free(&data->vps);
761 * We're done reading the file, but we didn't read
762 * anything. Clean up, and don't return anything.
765 data->state = STATE_HEADER;
766 if (!data->fp || feof(data->fp)) goto cleanup;
771 * Allocate the packet. If we fail, it's a serious
774 packet = rad_alloc(NULL, true);
776 ERROR("detail (%s): FATAL: Failed allocating memory for detail", data->name);
780 memset(packet, 0, sizeof(*packet));
782 packet->src_ipaddr.af = AF_INET;
783 packet->src_ipaddr.ipaddr.ip4addr.s_addr = htonl(INADDR_NONE);
786 * If everything's OK, this is a waste of memory.
787 * Otherwise, it lets us re-send the original packet
788 * contents, unmolested.
790 packet->vps = fr_pair_list_copy(packet, data->vps);
792 packet->code = PW_CODE_ACCOUNTING_REQUEST;
793 vp = fr_pair_find_by_num(packet->vps, PW_PACKET_TYPE, 0, TAG_ANY);
794 if (vp) packet->code = vp->vp_integer;
796 gettimeofday(&packet->timestamp, NULL);
799 * Remember where it came from, so that we don't
800 * proxy it to the place it came from...
802 if (data->client_ip.af != AF_UNSPEC) {
803 packet->src_ipaddr = data->client_ip;
806 vp = fr_pair_find_by_num(packet->vps, PW_PACKET_SRC_IP_ADDRESS, 0, TAG_ANY);
808 packet->src_ipaddr.af = AF_INET;
809 packet->src_ipaddr.ipaddr.ip4addr.s_addr = vp->vp_ipaddr;
810 packet->src_ipaddr.prefix = 32;
812 vp = fr_pair_find_by_num(packet->vps, PW_PACKET_SRC_IPV6_ADDRESS, 0, TAG_ANY);
814 packet->src_ipaddr.af = AF_INET6;
815 memcpy(&packet->src_ipaddr.ipaddr.ip6addr,
816 &vp->vp_ipv6addr, sizeof(vp->vp_ipv6addr));
817 packet->src_ipaddr.prefix = 128;
821 vp = fr_pair_find_by_num(packet->vps, PW_PACKET_DST_IP_ADDRESS, 0, TAG_ANY);
823 packet->dst_ipaddr.af = AF_INET;
824 packet->dst_ipaddr.ipaddr.ip4addr.s_addr = vp->vp_ipaddr;
825 packet->dst_ipaddr.prefix = 32;
827 vp = fr_pair_find_by_num(packet->vps, PW_PACKET_DST_IPV6_ADDRESS, 0, TAG_ANY);
829 packet->dst_ipaddr.af = AF_INET6;
830 memcpy(&packet->dst_ipaddr.ipaddr.ip6addr,
831 &vp->vp_ipv6addr, sizeof(vp->vp_ipv6addr));
832 packet->dst_ipaddr.prefix = 128;
837 * Generate packet ID, ports, IP via a counter.
839 packet->id = data->counter & 0xff;
840 packet->src_port = 1024 + ((data->counter >> 8) & 0xff);
841 packet->dst_port = 1024 + ((data->counter >> 16) & 0xff);
843 packet->dst_ipaddr.af = AF_INET;
844 packet->dst_ipaddr.ipaddr.ip4addr.s_addr = htonl((INADDR_LOOPBACK & ~0xffffff) | ((data->counter >> 24) & 0xff));
847 * Create / update accounting attributes.
849 if (packet->code == PW_CODE_ACCOUNTING_REQUEST) {
851 * Prefer the Event-Timestamp in the packet, if it
852 * exists. That is when the event occurred, whereas the
853 * "Timestamp" field is when we wrote the packet to the
854 * detail file, which could have been much later.
856 vp = fr_pair_find_by_num(packet->vps, PW_EVENT_TIMESTAMP, 0, TAG_ANY);
858 data->timestamp = vp->vp_integer;
862 * Look for Acct-Delay-Time, and update
863 * based on Acct-Delay-Time += (time(NULL) - timestamp)
865 vp = fr_pair_find_by_num(packet->vps, PW_ACCT_DELAY_TIME, 0, TAG_ANY);
867 vp = fr_pair_afrom_num(packet, PW_ACCT_DELAY_TIME, 0);
868 rad_assert(vp != NULL);
869 fr_pair_add(&packet->vps, vp);
871 if (data->timestamp != 0) {
872 vp->vp_integer += time(NULL) - data->timestamp;
877 * Set the transmission count.
879 vp = fr_pair_find_by_num(packet->vps, PW_PACKET_TRANSMIT_COUNTER, 0, TAG_ANY);
881 vp = fr_pair_afrom_num(packet, PW_PACKET_TRANSMIT_COUNTER, 0);
882 rad_assert(vp != NULL);
883 fr_pair_add(&packet->vps, vp);
885 vp->vp_integer = data->tries;
887 data->state = STATE_RUNNING;
888 data->running = packet->timestamp.tv_sec;
894 * Free detail-specific stuff.
896 void detail_free(rad_listen_t *this)
898 listen_detail_t *data = this->data;
900 #ifdef WITH_DETAIL_THREAD
906 * Mark the child pipes as unusable
908 close(data->child_pipe[0]);
909 close(data->child_pipe[1]);
910 data->child_pipe[0] = -1;
913 * Tell it to stop (interrupting its sleep)
915 pthread_kill(data->pthread_id, SIGTERM);
918 * Wait for it to acknowledge that it's stopped.
920 ret = read(data->master_pipe[0], &arg, sizeof(arg));
922 ERROR("detail (%s): Reader thread exited without informing the master: %s",
923 data->name, fr_syserror(errno));
924 } else if (ret != sizeof(arg)) {
925 ERROR("detail (%s): Invalid thread pointer received from reader thread during exit",
927 ERROR("detail (%s): Expected %zu bytes, got %zi bytes", data->name, sizeof(arg), ret);
930 close(data->master_pipe[0]);
931 close(data->master_pipe[1]);
933 if (arg) pthread_join(data->pthread_id, &arg);
937 if (data->fp != NULL) {
944 int detail_print(rad_listen_t const *this, char *buffer, size_t bufsize)
947 return snprintf(buffer, bufsize, "%s",
948 ((listen_detail_t *)(this->data))->filename);
951 return snprintf(buffer, bufsize, "detail file %s as server %s",
952 ((listen_detail_t *)(this->data))->filename,
958 * Delay while waiting for a file to be ready
960 static int detail_delay(listen_detail_t *data)
962 int delay = (data->poll_interval - 1) * USEC;
965 * Add +/- 0.25s of jitter
967 delay += (USEC * 3) / 4;
968 delay += fr_rand() % (USEC / 2);
970 DEBUG2("detail (%s): Detail listener state %s waiting %d.%06d sec",
972 fr_int2str(state_names, data->state, "?"),
973 (delay / USEC), delay % USEC);
979 * Overloaded to return delay times.
981 int detail_encode(UNUSED rad_listen_t *this, UNUSED REQUEST *request)
983 #ifdef WITH_DETAIL_THREAD
986 listen_detail_t *data = this->data;
989 * We haven't sent a packet... delay things a bit.
991 if (!data->signal) return detail_delay(data);
995 DEBUG2("detail (%s): Detail listener state %s signalled %d waiting %d.%06d sec",
997 fr_int2str(state_names, data->state, "?"),
999 data->delay_time / USEC,
1000 data->delay_time % USEC);
1002 return data->delay_time;
1007 * Overloaded to return "should we fix delay times"
1009 int detail_decode(UNUSED rad_listen_t *this, UNUSED REQUEST *request)
1011 #ifdef WITH_DETAIL_THREAD
1014 listen_detail_t *data = this->data;
1016 return data->signal;
1021 #ifdef WITH_DETAIL_THREAD
1022 static void *detail_handler_thread(void *arg)
1025 rad_listen_t *this = arg;
1026 listen_detail_t *data = this->data;
1029 RADIUS_PACKET *packet;
1031 while ((packet = detail_poll(this)) == NULL) {
1032 usleep(detail_delay(data));
1035 * If we're supposed to exit then tell
1036 * the master thread we've exited.
1038 if (data->child_pipe[0] < 0) {
1040 if (write(data->master_pipe[1], &packet, sizeof(packet)) < 0) {
1041 ERROR("detail (%s): Failed writing exit status to master: %s",
1042 data->name, fr_syserror(errno));
1049 * Keep retrying forever.
1051 * FIXME: cap the retries.
1054 if (write(data->master_pipe[1], &packet, sizeof(packet)) < 0) {
1055 ERROR("detail (%s): Failed passing detail packet pointer to master: %s",
1056 data->name, fr_syserror(errno));
1059 if (read(data->child_pipe[0], &c, 1) < 0) {
1060 ERROR("detail (%s): Failed getting detail packet ack from master: %s",
1061 data->name, fr_syserror(errno));
1065 if (data->delay_time > 0) usleep(data->delay_time);
1067 packet = detail_poll(this);
1069 } while (data->state != STATE_REPLIED);
1077 static const CONF_PARSER detail_config[] = {
1078 { "detail", FR_CONF_OFFSET(PW_TYPE_FILE_OUTPUT | PW_TYPE_DEPRECATED, listen_detail_t, filename), NULL },
1079 { "filename", FR_CONF_OFFSET(PW_TYPE_FILE_OUTPUT | PW_TYPE_REQUIRED, listen_detail_t, filename), NULL },
1080 { "load_factor", FR_CONF_OFFSET(PW_TYPE_INTEGER, listen_detail_t, load_factor), STRINGIFY(10) },
1081 { "poll_interval", FR_CONF_OFFSET(PW_TYPE_INTEGER, listen_detail_t, poll_interval), STRINGIFY(1) },
1082 { "retry_interval", FR_CONF_OFFSET(PW_TYPE_INTEGER, listen_detail_t, retry_interval), STRINGIFY(30) },
1083 { "one_shot", FR_CONF_OFFSET(PW_TYPE_BOOLEAN, listen_detail_t, one_shot), "no" },
1084 { "track", FR_CONF_OFFSET(PW_TYPE_BOOLEAN, listen_detail_t, track), "no" },
1085 CONF_PARSER_TERMINATOR
1089 * Parse a detail section.
1091 int detail_parse(CONF_SECTION *cs, rad_listen_t *this)
1094 listen_detail_t *data;
1100 rcode = cf_section_parse(cs, data, detail_config);
1102 cf_log_err_cs(cs, "Failed parsing listen section");
1106 data->name = cf_section_name2(cs);
1107 if (!data->name) data->name = data->filename;
1110 * We don't do duplicate detection for "detail" sockets.
1113 this->synchronous = false;
1115 if (!data->filename) {
1116 cf_log_err_cs(cs, "No detail file specified in listen section");
1120 FR_INTEGER_BOUND_CHECK("load_factor", data->load_factor, >=, 1);
1121 FR_INTEGER_BOUND_CHECK("load_factor", data->load_factor, <=, 100);
1123 FR_INTEGER_BOUND_CHECK("poll_interval", data->poll_interval, >=, 1);
1124 FR_INTEGER_BOUND_CHECK("poll_interval", data->poll_interval, <=, 60);
1126 FR_INTEGER_BOUND_CHECK("retry_interval", data->retry_interval, >=, 4);
1127 FR_INTEGER_BOUND_CHECK("retry_interval", data->retry_interval, <=, 3600);
1130 * Only checking the config. Don't start threads or anything else.
1132 if (check_config) return 0;
1135 * If the filename is a glob, use "detail.work" as the
1138 if ((strchr(data->filename, '*') != NULL) ||
1139 (strchr(data->filename, '[') != NULL)) {
1143 WARN("detail (%s): File \"%s\" appears to use file globbing, but it is not supported on this system",
1144 data->name, data->filename);
1146 strlcpy(buffer, data->filename, sizeof(buffer));
1147 p = strrchr(buffer, FR_DIR_SEP);
1155 * Globbing cannot be done across directories.
1157 if ((strchr(buffer, '*') != NULL) ||
1158 (strchr(buffer, '[') != NULL)) {
1159 cf_log_err_cs(cs, "Wildcard directories are not supported");
1163 strlcat(buffer, "detail.work",
1164 sizeof(buffer) - strlen(buffer));
1167 snprintf(buffer, sizeof(buffer), "%s.work", data->filename);
1170 data->filename_work = talloc_strdup(data, buffer);
1175 data->state = STATE_UNOPENED;
1176 data->delay_time = data->poll_interval * USEC;
1180 * Initialize the fake client.
1182 client = &data->detail_client;
1183 memset(client, 0, sizeof(*client));
1184 client->ipaddr.af = AF_INET;
1185 client->ipaddr.ipaddr.ip4addr.s_addr = INADDR_NONE;
1186 client->ipaddr.prefix = 0;
1187 client->longname = client->shortname = data->filename;
1188 client->secret = client->shortname;
1189 client->nas_type = talloc_strdup(data, "none"); /* Part of 'data' not dynamically allocated */
1191 #ifdef WITH_DETAIL_THREAD
1193 * Create the communication pipes.
1195 if (pipe(data->master_pipe) < 0) {
1196 ERROR("detail (%s): Error opening internal pipe: %s", data->name, fr_syserror(errno));
1200 if (pipe(data->child_pipe) < 0) {
1201 ERROR("detail (%s): Error opening internal pipe: %s", data->name, fr_syserror(errno));
1205 pthread_create(&data->pthread_id, NULL, detail_handler_thread, this);
1207 this->fd = data->master_pipe[0];