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);
208 * Couldn't open it for a reason OTHER than "it doesn't
209 * exist". Complain and tell the admin.
211 if ((data->work_fd < 0) && (errno != ENOENT)) {
212 ERROR("Failed opening detail file %s: %s",
213 data->filename_work, fr_syserror(errno));
218 * The file doesn't exist. Poll for it again.
220 if (data->work_fd < 0) {
227 char const *filename;
230 DEBUG2("detail (%s): Polling for detail file", data->name);
232 memset(&files, 0, sizeof(files));
233 if (glob(data->filename, 0, NULL, &files) != 0) {
240 * Loop over the glob'd files, looking for the
245 for (i = 0; i < files.gl_pathc; i++) {
246 if (stat(files.gl_pathv[i], &st) < 0) continue;
248 if ((i == 0) || (st.st_ctime < chtime)) {
249 chtime = st.st_ctime;
254 if (found < 0) goto noop;
257 * Rename detail to detail.work
259 filename = files.gl_pathv[found];
261 DEBUG("detail (%s): Renaming %s -> %s", data->name, filename, data->filename_work);
262 if (rename(filename, data->filename_work) < 0) {
263 ERROR("detail (%s): Failed renaming %s to %s: %s",
264 data->name, filename, data->filename_work, fr_syserror(errno));
268 globfree(&files); /* Shouldn't be using anything in files now */
271 * And try to open the filename.
273 data->work_fd = open(data->filename_work, O_RDWR);
274 if (data->work_fd < 0) {
275 ERROR("Failed opening detail file %s: %s",
276 data->filename_work, fr_syserror(errno));
280 } /* else detail.work existed, and we opened it */
282 rad_assert(data->vps == NULL);
283 rad_assert(data->fp == NULL);
285 data->state = STATE_UNLOCKED;
287 data->client_ip.af = AF_UNSPEC;
289 data->offset = data->last_offset = data->timestamp_offset = 0;
292 data->done_entry = false;
299 * FIXME: add a configuration "exit when done" so that the detail
300 * file reader can be used as a one-off tool to update stuff.
302 * The time sequence for reading from the detail file is:
304 * t_0 signalled that the server is idle, and we
305 * can read from the detail file.
307 * t_rtt the packet has been processed successfully,
308 * wait for t_delay to enforce load factor.
310 * t_rtt + t_delay wait for signal that the server is idle.
313 #ifndef WITH_DETAIL_THREAD
314 static RADIUS_PACKET *detail_poll(rad_listen_t *listener);
316 int detail_recv(rad_listen_t *listener)
318 RADIUS_PACKET *packet;
319 listen_detail_t *data = listener->data;
320 RAD_REQUEST_FUNP fun = NULL;
323 * We may be in the main thread. It needs to update the
324 * timers before we try to read from the file again.
326 if (data->signal) return 0;
328 packet = detail_poll(listener);
329 if (!packet) return -1;
331 if (DEBUG_ENABLED2) {
335 DEBUG2("detail (%s): Read packet from %s", data->name, data->filename_work);
337 for (vp = fr_cursor_init(&cursor, &packet->vps);
339 vp = fr_cursor_next(&cursor)) {
344 switch (packet->code) {
345 case PW_CODE_ACCOUNTING_REQUEST:
346 fun = rad_accounting;
349 case PW_CODE_COA_REQUEST:
350 case PW_CODE_DISCONNECT_REQUEST:
356 data->state = STATE_REPLIED;
361 * Don't bother doing limit checks, etc.
363 if (!request_receive(NULL, listener, packet, &data->detail_client, fun)) {
365 data->state = STATE_NO_REPLY; /* try again later */
372 int detail_recv(rad_listen_t *listener)
376 RADIUS_PACKET *packet;
377 listen_detail_t *data = listener->data;
378 RAD_REQUEST_FUNP fun = NULL;
381 * Block until there's a packet ready.
383 rcode = read(data->master_pipe[0], &packet, sizeof(packet));
384 if (rcode <= 0) return rcode;
386 if (DEBUG_ENABLED2) {
390 DEBUG2("detail (%s): Read packet from %s", data->name, data->filename_work);
391 for (vp = fr_cursor_init(&cursor, &packet->vps);
393 vp = fr_cursor_next(&cursor)) {
397 rad_assert(packet != NULL);
399 switch (packet->code) {
400 case PW_CODE_ACCOUNTING_REQUEST:
401 fun = rad_accounting;
404 case PW_CODE_COA_REQUEST:
405 case PW_CODE_DISCONNECT_REQUEST:
410 data->state = STATE_REPLIED;
414 if (!request_receive(NULL, listener, packet, &data->detail_client, fun)) {
415 data->state = STATE_NO_REPLY; /* try again later */
419 if (write(data->child_pipe[1], &c, 1) < 0) {
420 ERROR("detail (%s): Failed writing ack to reader thread: %s", data->name,
426 * Wait for the child thread to write an answer to the pipe
432 static RADIUS_PACKET *detail_poll(rad_listen_t *listener)
434 char key[256], op[8], value[1024];
437 RADIUS_PACKET *packet;
439 listen_detail_t *data = listener->data;
441 switch (data->state) {
444 rad_assert(data->work_fd < 0);
446 if (!detail_open(listener)) return NULL;
448 rad_assert(data->state == STATE_UNLOCKED);
449 rad_assert(data->work_fd >= 0);
454 * Try to lock fd. If we can't, return.
455 * If we can, continue. This means that
456 * the server doesn't block while waiting
457 * for the lock to open...
461 * Note that we do NOT block waiting for
462 * the lock. We've re-named the file
463 * above, so we've already guaranteed
464 * that any *new* detail writer will not
465 * be opening this file. The only
466 * purpose of the lock is to catch a race
467 * condition where the execution
468 * "ping-pongs" between radiusd &
471 if (rad_lockfd_nonblock(data->work_fd, 0) < 0) {
473 * Close the FD. The main loop
474 * will wake up in a second and
477 close(data->work_fd);
480 data->state = STATE_UNOPENED;
485 * Only open for writing if we're
486 * marking requests as completed.
488 data->fp = fdopen(data->work_fd, data->track ? "r+" : "r");
490 ERROR("detail (%s): FATAL: Failed to re-open detail file: %s",
491 data->name, fr_syserror(errno));
496 * Look for the header
498 data->state = STATE_HEADER;
499 data->delay_time = USEC;
506 data->done_entry = false;
507 data->timestamp_offset = 0;
511 data->state = STATE_UNOPENED;
518 if (fstat(data->work_fd, &buf) < 0) {
519 ERROR("detail (%s): Failed to stat detail file: %s",
520 data->name, fr_syserror(errno));
524 if (((off_t) ftell(data->fp)) == buf.st_size) {
530 * End of file. Delete it, and re-set
533 if (feof(data->fp)) {
535 DEBUG("detail (%s): Unlinking %s", data->name, data->filename_work);
536 unlink(data->filename_work);
537 if (data->fp) fclose(data->fp);
540 data->state = STATE_UNOPENED;
541 rad_assert(data->vps == NULL);
543 if (data->one_shot) {
544 INFO("detail (%s): Finished reading \"one shot\" detail file - Exiting", data->name);
545 radius_signal_self(RADIUS_SIGNAL_SELF_EXIT);
552 * Else go read something.
557 * Read more value-pair's, unless we're
558 * at EOF. In that case, queue whatever
562 if (data->fp && !feof(data->fp)) break;
563 data->state = STATE_QUEUED;
571 * Periodically check what's going on.
572 * If the request is taking too long,
576 if (time(NULL) < (data->running + (int)data->retry_interval)) {
580 DEBUG("detail (%s): No response to detail request. Retrying", data->name);
584 * If there's no reply, keep
585 * retransmitting the current packet
589 data->state = STATE_QUEUED;
593 * We have a reply. Clean up the old
594 * request, and go read another one.
598 rad_assert(data->fp != NULL);
600 if (fseek(data->fp, data->timestamp_offset, SEEK_SET) < 0) {
601 WARN("detail (%s): Failed seeking to timestamp offset: %s",
602 data->name, fr_syserror(errno));
603 } else if (fwrite("\tDone", 1, 5, data->fp) < 5) {
604 WARN("detail (%s): Failed marking request as done: %s",
605 data->name, fr_syserror(errno));
606 } else if (fflush(data->fp) != 0) {
607 WARN("detail (%s): Failed flushing marked detail file to disk: %s",
608 data->name, fr_syserror(errno));
611 if (fseek(data->fp, data->offset, SEEK_SET) < 0) {
612 WARN("detail (%s): Failed seeking to next detail request: %s",
613 data->name, fr_syserror(errno));
617 fr_pair_list_free(&data->vps);
618 data->state = STATE_HEADER;
622 fr_cursor_init(&cursor, &data->vps);
625 * Read a header, OR a value-pair.
627 while (fgets(buffer, sizeof(buffer), data->fp)) {
628 data->last_offset = data->offset;
629 data->offset = ftell(data->fp); /* for statistics */
632 * Badly formatted file: delete it.
634 * FIXME: Maybe flag an error?
636 if (!strchr(buffer, '\n')) {
637 fr_pair_list_free(&data->vps);
642 * We're reading VP's, and got a blank line.
645 if ((data->state == STATE_READING) &&
646 (buffer[0] == '\n')) {
647 data->state = STATE_QUEUED;
652 * Look for date/time header, and read VP's if
653 * found. If not, keep reading lines until we
656 if (data->state == STATE_HEADER) {
659 if (sscanf(buffer, "%*s %*s %*d %*d:%*d:%*d %d", &y)) {
660 data->state = STATE_READING;
666 * We have a full "attribute = value" line.
667 * If it doesn't look reasonable, skip it.
669 * FIXME: print an error for badly formatted attributes?
671 if (sscanf(buffer, "%255s %7s %1023s", key, op, value) != 3) {
672 WARN("detail (%s): Skipping badly formatted line %s", data->name, buffer);
677 * Should be =, :=, +=, ...
679 if (!strchr(op, '=')) continue;
682 * Skip non-protocol attributes.
684 if (!strcasecmp(key, "Request-Authenticator")) continue;
687 * Set the original client IP address, based on
688 * what's in the detail file.
690 * Hmm... we don't set the server IP address.
693 if (!strcasecmp(key, "Client-IP-Address")) {
694 data->client_ip.af = AF_INET;
695 if (ip_hton(&data->client_ip, AF_INET, value, false) < 0) {
696 ERROR("detail (%s): Failed parsing Client-IP-Address", data->name);
698 fr_pair_list_free(&data->vps);
705 * The original time at which we received the
706 * packet. We need this to properly calculate
709 if (!strcasecmp(key, "Timestamp")) {
710 data->timestamp = atoi(value);
711 data->timestamp_offset = data->last_offset;
713 vp = fr_pair_afrom_num(data, PW_PACKET_ORIGINAL_TIMESTAMP, 0);
715 vp->vp_date = (uint32_t) data->timestamp;
717 fr_cursor_insert(&cursor, vp);
722 if (!strcasecmp(key, "Donestamp")) {
723 data->timestamp = atoi(value);
724 data->done_entry = true;
731 * FIXME: do we want to check for non-protocol
732 * attributes like radsqlrelay does?
735 if ((fr_pair_list_afrom_str(data, buffer, &vp) > 0) &&
737 fr_cursor_merge(&cursor, vp);
742 * Some kind of error.
744 * FIXME: Leave the file in-place, and warn the
747 if (ferror(data->fp)) goto cleanup;
753 * Process the packet.
756 if (data->done_entry) {
757 DEBUG2("detail (%s): Skipping record for timestamp %lu", data->name, data->timestamp);
758 fr_pair_list_free(&data->vps);
759 data->state = STATE_HEADER;
766 * The writer doesn't check that the record was
767 * completely written. If the disk is full, this can
768 * result in a truncated record. When that happens,
771 if (data->state != STATE_QUEUED) {
772 ERROR("detail (%s): Truncated record: treating it as EOF for detail file %s",
773 data->name, data->filename_work);
774 fr_pair_list_free(&data->vps);
779 * We're done reading the file, but we didn't read
780 * anything. Clean up, and don't return anything.
783 data->state = STATE_HEADER;
784 if (!data->fp || feof(data->fp)) goto cleanup;
789 * Allocate the packet. If we fail, it's a serious
792 packet = rad_alloc(NULL, true);
794 ERROR("detail (%s): FATAL: Failed allocating memory for detail", data->name);
798 memset(packet, 0, sizeof(*packet));
800 packet->src_ipaddr.af = AF_INET;
801 packet->src_ipaddr.ipaddr.ip4addr.s_addr = htonl(INADDR_NONE);
804 * If everything's OK, this is a waste of memory.
805 * Otherwise, it lets us re-send the original packet
806 * contents, unmolested.
808 packet->vps = fr_pair_list_copy(packet, data->vps);
810 packet->code = PW_CODE_ACCOUNTING_REQUEST;
811 vp = fr_pair_find_by_num(packet->vps, PW_PACKET_TYPE, 0, TAG_ANY);
812 if (vp) packet->code = vp->vp_integer;
814 gettimeofday(&packet->timestamp, NULL);
817 * Remember where it came from, so that we don't
818 * proxy it to the place it came from...
820 if (data->client_ip.af != AF_UNSPEC) {
821 packet->src_ipaddr = data->client_ip;
824 vp = fr_pair_find_by_num(packet->vps, PW_PACKET_SRC_IP_ADDRESS, 0, TAG_ANY);
826 packet->src_ipaddr.af = AF_INET;
827 packet->src_ipaddr.ipaddr.ip4addr.s_addr = vp->vp_ipaddr;
828 packet->src_ipaddr.prefix = 32;
830 vp = fr_pair_find_by_num(packet->vps, PW_PACKET_SRC_IPV6_ADDRESS, 0, TAG_ANY);
832 packet->src_ipaddr.af = AF_INET6;
833 memcpy(&packet->src_ipaddr.ipaddr.ip6addr,
834 &vp->vp_ipv6addr, sizeof(vp->vp_ipv6addr));
835 packet->src_ipaddr.prefix = 128;
839 vp = fr_pair_find_by_num(packet->vps, PW_PACKET_DST_IP_ADDRESS, 0, TAG_ANY);
841 packet->dst_ipaddr.af = AF_INET;
842 packet->dst_ipaddr.ipaddr.ip4addr.s_addr = vp->vp_ipaddr;
843 packet->dst_ipaddr.prefix = 32;
845 vp = fr_pair_find_by_num(packet->vps, PW_PACKET_DST_IPV6_ADDRESS, 0, TAG_ANY);
847 packet->dst_ipaddr.af = AF_INET6;
848 memcpy(&packet->dst_ipaddr.ipaddr.ip6addr,
849 &vp->vp_ipv6addr, sizeof(vp->vp_ipv6addr));
850 packet->dst_ipaddr.prefix = 128;
855 * Generate packet ID, ports, IP via a counter.
857 packet->id = data->counter & 0xff;
858 packet->src_port = 1024 + ((data->counter >> 8) & 0xff);
859 packet->dst_port = 1024 + ((data->counter >> 16) & 0xff);
861 packet->dst_ipaddr.af = AF_INET;
862 packet->dst_ipaddr.ipaddr.ip4addr.s_addr = htonl((INADDR_LOOPBACK & ~0xffffff) | ((data->counter >> 24) & 0xff));
865 * Create / update accounting attributes.
867 if (packet->code == PW_CODE_ACCOUNTING_REQUEST) {
869 * Prefer the Event-Timestamp in the packet, if it
870 * exists. That is when the event occurred, whereas the
871 * "Timestamp" field is when we wrote the packet to the
872 * detail file, which could have been much later.
874 vp = fr_pair_find_by_num(packet->vps, PW_EVENT_TIMESTAMP, 0, TAG_ANY);
876 data->timestamp = vp->vp_integer;
880 * Look for Acct-Delay-Time, and update
881 * based on Acct-Delay-Time += (time(NULL) - timestamp)
883 vp = fr_pair_find_by_num(packet->vps, PW_ACCT_DELAY_TIME, 0, TAG_ANY);
885 vp = fr_pair_afrom_num(packet, PW_ACCT_DELAY_TIME, 0);
886 rad_assert(vp != NULL);
887 fr_pair_add(&packet->vps, vp);
889 if (data->timestamp != 0) {
890 vp->vp_integer += time(NULL) - data->timestamp;
895 * Set the transmission count.
897 vp = fr_pair_find_by_num(packet->vps, PW_PACKET_TRANSMIT_COUNTER, 0, TAG_ANY);
899 vp = fr_pair_afrom_num(packet, PW_PACKET_TRANSMIT_COUNTER, 0);
900 rad_assert(vp != NULL);
901 fr_pair_add(&packet->vps, vp);
903 vp->vp_integer = data->tries;
905 data->state = STATE_RUNNING;
906 data->running = packet->timestamp.tv_sec;
912 * Free detail-specific stuff.
914 void detail_free(rad_listen_t *this)
916 listen_detail_t *data = this->data;
918 #ifdef WITH_DETAIL_THREAD
924 * Mark the child pipes as unusable
926 close(data->child_pipe[0]);
927 close(data->child_pipe[1]);
928 data->child_pipe[0] = -1;
931 * Tell it to stop (interrupting its sleep)
933 pthread_kill(data->pthread_id, SIGTERM);
936 * Wait for it to acknowledge that it's stopped.
938 ret = read(data->master_pipe[0], &arg, sizeof(arg));
940 ERROR("detail (%s): Reader thread exited without informing the master: %s",
941 data->name, fr_syserror(errno));
942 } else if (ret != sizeof(arg)) {
943 ERROR("detail (%s): Invalid thread pointer received from reader thread during exit",
945 ERROR("detail (%s): Expected %zu bytes, got %zi bytes", data->name, sizeof(arg), ret);
948 close(data->master_pipe[0]);
949 close(data->master_pipe[1]);
951 if (arg) pthread_join(data->pthread_id, &arg);
955 if (data->fp != NULL) {
962 int detail_print(rad_listen_t const *this, char *buffer, size_t bufsize)
965 return snprintf(buffer, bufsize, "%s",
966 ((listen_detail_t *)(this->data))->filename);
969 return snprintf(buffer, bufsize, "detail file %s as server %s",
970 ((listen_detail_t *)(this->data))->filename,
976 * Delay while waiting for a file to be ready
978 static int detail_delay(listen_detail_t *data)
980 int delay = (data->poll_interval - 1) * USEC;
983 * Add +/- 0.25s of jitter
985 delay += (USEC * 3) / 4;
986 delay += fr_rand() % (USEC / 2);
988 DEBUG2("detail (%s): Detail listener state %s waiting %d.%06d sec",
990 fr_int2str(state_names, data->state, "?"),
991 (delay / USEC), delay % USEC);
997 * Overloaded to return delay times.
999 int detail_encode(UNUSED rad_listen_t *this, UNUSED REQUEST *request)
1001 #ifdef WITH_DETAIL_THREAD
1004 listen_detail_t *data = this->data;
1007 * We haven't sent a packet... delay things a bit.
1009 if (!data->signal) return detail_delay(data);
1013 DEBUG2("detail (%s): Detail listener state %s signalled %d waiting %d.%06d sec",
1015 fr_int2str(state_names, data->state, "?"),
1017 data->delay_time / USEC,
1018 data->delay_time % USEC);
1020 return data->delay_time;
1025 * Overloaded to return "should we fix delay times"
1027 int detail_decode(UNUSED rad_listen_t *this, UNUSED REQUEST *request)
1029 #ifdef WITH_DETAIL_THREAD
1032 listen_detail_t *data = this->data;
1034 return data->signal;
1039 #ifdef WITH_DETAIL_THREAD
1040 static void *detail_handler_thread(void *arg)
1043 rad_listen_t *this = arg;
1044 listen_detail_t *data = this->data;
1047 RADIUS_PACKET *packet;
1049 while ((packet = detail_poll(this)) == NULL) {
1050 usleep(detail_delay(data));
1053 * If we're supposed to exit then tell
1054 * the master thread we've exited.
1056 if (data->child_pipe[0] < 0) {
1058 if (write(data->master_pipe[1], &packet, sizeof(packet)) < 0) {
1059 ERROR("detail (%s): Failed writing exit status to master: %s",
1060 data->name, fr_syserror(errno));
1067 * Keep retrying forever.
1069 * FIXME: cap the retries.
1072 if (write(data->master_pipe[1], &packet, sizeof(packet)) < 0) {
1073 ERROR("detail (%s): Failed passing detail packet pointer to master: %s",
1074 data->name, fr_syserror(errno));
1077 if (read(data->child_pipe[0], &c, 1) < 0) {
1078 ERROR("detail (%s): Failed getting detail packet ack from master: %s",
1079 data->name, fr_syserror(errno));
1083 if (data->delay_time > 0) usleep(data->delay_time);
1085 packet = detail_poll(this);
1087 } while (data->state != STATE_REPLIED);
1095 static const CONF_PARSER detail_config[] = {
1096 { "detail", FR_CONF_OFFSET(PW_TYPE_FILE_OUTPUT | PW_TYPE_DEPRECATED, listen_detail_t, filename), NULL },
1097 { "filename", FR_CONF_OFFSET(PW_TYPE_FILE_OUTPUT | PW_TYPE_REQUIRED, listen_detail_t, filename), NULL },
1098 { "load_factor", FR_CONF_OFFSET(PW_TYPE_INTEGER, listen_detail_t, load_factor), STRINGIFY(10) },
1099 { "poll_interval", FR_CONF_OFFSET(PW_TYPE_INTEGER, listen_detail_t, poll_interval), STRINGIFY(1) },
1100 { "retry_interval", FR_CONF_OFFSET(PW_TYPE_INTEGER, listen_detail_t, retry_interval), STRINGIFY(30) },
1101 { "one_shot", FR_CONF_OFFSET(PW_TYPE_BOOLEAN, listen_detail_t, one_shot), "no" },
1102 { "track", FR_CONF_OFFSET(PW_TYPE_BOOLEAN, listen_detail_t, track), "no" },
1103 CONF_PARSER_TERMINATOR
1107 * Parse a detail section.
1109 int detail_parse(CONF_SECTION *cs, rad_listen_t *this)
1112 listen_detail_t *data;
1118 rcode = cf_section_parse(cs, data, detail_config);
1120 cf_log_err_cs(cs, "Failed parsing listen section");
1124 data->name = cf_section_name2(cs);
1125 if (!data->name) data->name = data->filename;
1128 * We don't do duplicate detection for "detail" sockets.
1131 this->synchronous = false;
1133 if (!data->filename) {
1134 cf_log_err_cs(cs, "No detail file specified in listen section");
1138 FR_INTEGER_BOUND_CHECK("load_factor", data->load_factor, >=, 1);
1139 FR_INTEGER_BOUND_CHECK("load_factor", data->load_factor, <=, 100);
1141 FR_INTEGER_BOUND_CHECK("poll_interval", data->poll_interval, >=, 1);
1142 FR_INTEGER_BOUND_CHECK("poll_interval", data->poll_interval, <=, 60);
1144 FR_INTEGER_BOUND_CHECK("retry_interval", data->retry_interval, >=, 4);
1145 FR_INTEGER_BOUND_CHECK("retry_interval", data->retry_interval, <=, 3600);
1148 * Only checking the config. Don't start threads or anything else.
1150 if (check_config) return 0;
1153 * If the filename is a glob, use "detail.work" as the
1156 if ((strchr(data->filename, '*') != NULL) ||
1157 (strchr(data->filename, '[') != NULL)) {
1161 WARN("detail (%s): File \"%s\" appears to use file globbing, but it is not supported on this system",
1162 data->name, data->filename);
1164 strlcpy(buffer, data->filename, sizeof(buffer));
1165 p = strrchr(buffer, FR_DIR_SEP);
1173 * Globbing cannot be done across directories.
1175 if ((strchr(buffer, '*') != NULL) ||
1176 (strchr(buffer, '[') != NULL)) {
1177 cf_log_err_cs(cs, "Wildcard directories are not supported");
1181 strlcat(buffer, "detail.work",
1182 sizeof(buffer) - strlen(buffer));
1185 snprintf(buffer, sizeof(buffer), "%s.work", data->filename);
1188 data->filename_work = talloc_strdup(data, buffer);
1193 data->state = STATE_UNOPENED;
1194 data->delay_time = data->poll_interval * USEC;
1198 * Initialize the fake client.
1200 client = &data->detail_client;
1201 memset(client, 0, sizeof(*client));
1202 client->ipaddr.af = AF_INET;
1203 client->ipaddr.ipaddr.ip4addr.s_addr = INADDR_NONE;
1204 client->ipaddr.prefix = 0;
1205 client->longname = client->shortname = data->filename;
1206 client->secret = client->shortname;
1207 client->nas_type = talloc_strdup(data, "none"); /* Part of 'data' not dynamically allocated */
1209 #ifdef WITH_DETAIL_THREAD
1211 * Create the communication pipes.
1213 if (pipe(data->master_pipe) < 0) {
1214 ERROR("detail (%s): Error opening internal pipe: %s", data->name, fr_syserror(errno));
1218 if (pipe(data->child_pipe) < 0) {
1219 ERROR("detail (%s): Error opening internal pipe: %s", data->name, fr_syserror(errno));
1223 pthread_create(&data->pthread_id, NULL, detail_handler_thread, this);
1225 this->fd = data->master_pipe[0];