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Fixed logging bug in filterread.
[doldaconnect.git] / daemon / transfer.c
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d3372da9 1/*
2 * Dolda Connect - Modular multiuser Direct Connect-style client
3 * Copyright (C) 2004 Fredrik Tolf (fredrik@dolda2000.com)
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18*/
19#include <stdlib.h>
20#include <string.h>
21#include <time.h>
22#include <unistd.h>
23#include <fcntl.h>
24#include <signal.h>
25#include <pwd.h>
26#include <grp.h>
27#include <errno.h>
28#include <sys/wait.h>
29
30#ifdef HAVE_CONFIG_H
31#include <config.h>
32#endif
33#include "log.h"
34#include "utils.h"
35#include "sysevents.h"
36#include "auth.h"
37#include "transfer.h"
38#include "module.h"
429d35e5 39#include "client.h"
d3372da9 40
41static void killfilter(struct transfer *transfer);
42
7a5e9d41 43unsigned long long bytesupload = 0;
44unsigned long long bytesdownload = 0;
d3372da9 45struct transfer *transfers = NULL;
46int numtransfers = 0;
47GCBCHAIN(newtransfercb, struct transfer *);
48
49void freetransfer(struct transfer *transfer)
50{
d3372da9 51 if(transfer == transfers)
52 transfers = transfer->next;
53 if(transfer->next != NULL)
54 transfer->next->prev = transfer->prev;
55 if(transfer->prev != NULL)
56 transfer->prev->next = transfer->next;
57 CBCHAINDOCB(transfer, trans_destroy, transfer);
58 CBCHAINFREE(transfer, trans_ac);
59 CBCHAINFREE(transfer, trans_act);
60 CBCHAINFREE(transfer, trans_p);
61 CBCHAINFREE(transfer, trans_destroy);
62 CBCHAINFREE(transfer, trans_filterout);
9ec790e8 63 while(transfer->args != NULL)
64 freewcspair(transfer->args, &transfer->args);
d3372da9 65 if(transfer->filter != -1)
66 killfilter(transfer);
67 if(transfer->etimer != NULL)
68 canceltimer(transfer->etimer);
69 if(transfer->auth != NULL)
70 authputhandle(transfer->auth);
71 if(transfer->peerid != NULL)
72 free(transfer->peerid);
73 if(transfer->peernick != NULL)
74 free(transfer->peernick);
75 if(transfer->path != NULL)
76 free(transfer->path);
77 if(transfer->actdesc != NULL)
78 free(transfer->actdesc);
79 if(transfer->filterbuf != NULL)
80 free(transfer->filterbuf);
429d35e5 81 if(transfer->hash != NULL)
82 freehash(transfer->hash);
d3372da9 83 if(transfer->localend != NULL)
84 {
85 transfer->localend->readcb = NULL;
86 transfer->localend->writecb = NULL;
87 transfer->localend->errcb = NULL;
88 putsock(transfer->localend);
89 }
90 if(transfer->filterout != NULL)
91 {
92 transfer->filterout->readcb = NULL;
93 transfer->filterout->writecb = NULL;
94 transfer->filterout->errcb = NULL;
95 putsock(transfer->filterout);
96 }
97 if(transfer->fn != NULL)
98 putfnetnode(transfer->fn);
99 free(transfer);
100 numtransfers--;
101}
102
103struct transfer *newtransfer(void)
104{
105 struct transfer *new;
106 static int curid = 0;
107
108 new = smalloc(sizeof(*new));
109 memset(new, 0, sizeof(*new));
110 new->id = curid++;
111 new->size = -1;
112 new->endpos = -1;
113 new->filter = -1;
114 CBCHAININIT(new, trans_ac);
115 CBCHAININIT(new, trans_act);
116 CBCHAININIT(new, trans_p);
117 CBCHAININIT(new, trans_destroy);
118 CBCHAININIT(new, trans_filterout);
119 new->next = NULL;
120 new->prev = NULL;
121 time(&new->activity);
122 numtransfers++;
123 return(new);
124}
125
d3372da9 126void transferattach(struct transfer *transfer, struct transferiface *iface, void *data)
127{
128 if(transfer->iface != NULL)
129 transferdetach(transfer);
130 transfer->iface = iface;
131 transfer->ifacedata = data;
132}
133
134void transferdetach(struct transfer *transfer)
135{
136 if(transfer->iface != NULL)
137 {
138 transfer->iface->detach(transfer, transfer->ifacedata);
139 transfer->iface = NULL;
140 transfer->ifacedata = NULL;
141 }
142}
143
2c086721 144struct transfer *finddownload(wchar_t *peerid)
145{
146 struct transfer *transfer;
147
148 for(transfer = transfers; transfer != NULL; transfer = transfer->next)
149 {
150 if((transfer->dir == TRNSD_DOWN) && (transfer->iface == NULL) && !wcscmp(peerid, transfer->peerid))
151 break;
152 }
153 return(transfer);
154}
155
d3372da9 156struct transfer *newupload(struct fnetnode *fn, struct fnet *fnet, wchar_t *nickid, struct transferiface *iface, void *data)
157{
158 struct transfer *transfer;
159
160 transfer = newtransfer();
161 if(fnet != NULL)
162 transfer->fnet = fnet;
163 else
164 transfer->fnet = fn->fnet;
165 transfer->peerid = swcsdup(nickid);
166 transfer->state = TRNS_HS;
167 transfer->dir = TRNSD_UP;
168 if(fn != NULL)
169 getfnetnode(transfer->fn = fn);
170 transferattach(transfer, iface, data);
171 linktransfer(transfer);
172 bumptransfer(transfer);
173 return(transfer);
174}
175
176void linktransfer(struct transfer *transfer)
177{
178 transfer->next = transfers;
179 transfer->prev = NULL;
180 if(transfers != NULL)
181 transfers->prev = transfer;
182 transfers = transfer;
183 GCBCHAINDOCB(newtransfercb, transfer);
184}
185
186void resettransfer(struct transfer *transfer)
187{
188 if(transfer->dir == TRNSD_DOWN)
189 {
190 if(transfer->iface != NULL)
191 transferdetach(transfer);
192 killfilter(transfer);
193 transfersetstate(transfer, TRNS_WAITING);
194 transfersetactivity(transfer, L"reset");
195 return;
196 }
197}
198
199struct transfer *findtransfer(int id)
200{
201 struct transfer *transfer;
202
203 for(transfer = transfers; transfer != NULL; transfer = transfer->next)
204 {
205 if(transfer->id == id)
206 break;
207 }
208 return(transfer);
209}
210
211static void transexpire(int cancelled, struct transfer *transfer)
212{
213 transfer->etimer = NULL;
214 if(!cancelled)
215 bumptransfer(transfer);
216 else
217 transfer->timeout = 0;
218}
219
220static void transferread(struct socket *sk, struct transfer *transfer)
221{
222 if(sockgetdatalen(sk) >= 65536)
223 sk->ignread = 1;
224 if((transfer->iface != NULL) && (transfer->iface->gotdata != NULL))
225 transfer->iface->gotdata(transfer, transfer->ifacedata);
226}
227
228static void transferwrite(struct socket *sk, struct transfer *transfer)
229{
230 if((transfer->iface != NULL) && (transfer->iface->wantdata != NULL))
231 transfer->iface->wantdata(transfer, transfer->ifacedata);
232}
233
234static void transfererr(struct socket *sk, int errno, struct transfer *transfer)
235{
236 if((transfer->iface != NULL) && (transfer->iface->endofdata != NULL))
237 transfer->iface->endofdata(transfer, transfer->ifacedata);
238}
239
240void transferputdata(struct transfer *transfer, void *buf, size_t size)
241{
242 time(&transfer->activity);
243 sockqueue(transfer->localend, buf, size);
244 transfer->curpos += size;
7a5e9d41 245 bytesdownload += size;
d3372da9 246 CBCHAINDOCB(transfer, trans_p, transfer);
247}
248
249void transferendofdata(struct transfer *transfer)
250{
251 if(transfer->curpos >= transfer->size)
252 {
253 transfersetstate(transfer, TRNS_DONE);
254 transfer->localend->readcb = NULL;
255 transfer->localend->writecb = NULL;
256 transfer->localend->errcb = NULL;
257 putsock(transfer->localend);
258 transfer->localend = NULL;
259 } else {
260 resettransfer(transfer);
261 }
262}
263
264size_t transferdatasize(struct transfer *transfer)
265{
266 return(sockqueuesize(transfer->localend));
267}
268
269void *transfergetdata(struct transfer *transfer, size_t *size)
270{
271 void *buf;
272
273 if(transfer->localend == NULL)
274 return(NULL);
275 transfer->localend->ignread = 0;
276 time(&transfer->activity);
277 if((buf = sockgetinbuf(transfer->localend, size)) == NULL)
278 return(NULL);
279 if((transfer->endpos >= 0) && (transfer->curpos + *size >= transfer->endpos))
280 {
281 *size = transfer->endpos - transfer->curpos;
282 buf = srealloc(buf, *size);
283 }
284 transfer->curpos += *size;
7a5e9d41 285 bytesupload += *size;
d3372da9 286 CBCHAINDOCB(transfer, trans_p, transfer);
287 return(buf);
288}
289
290void transferprepul(struct transfer *transfer, size_t size, size_t start, size_t end, struct socket *lesk)
291{
292 transfersetsize(transfer, size);
293 transfer->curpos = start;
294 transfer->endpos = end;
295 lesk->ignread = 1;
296 transfersetlocalend(transfer, lesk);
297}
298
2c086721 299void transferstartdl(struct transfer *transfer, struct socket *sk)
300{
301 transfersetstate(transfer, TRNS_MAIN);
302 socksettos(sk, confgetint("transfer", "dltos"));
303}
304
d3372da9 305void transferstartul(struct transfer *transfer, struct socket *sk)
306{
307 transfersetstate(transfer, TRNS_MAIN);
308 socksettos(sk, confgetint("transfer", "ultos"));
309 if(transfer->localend != NULL)
310 transfer->localend->ignread = 0;
311}
312
313void transfersetlocalend(struct transfer *transfer, struct socket *sk)
314{
315 if(transfer->localend != NULL)
316 putsock(transfer->localend);
317 getsock(transfer->localend = sk);
318 sk->data = transfer;
319 sk->readcb = (void (*)(struct socket *, void *))transferread;
320 sk->writecb = (void (*)(struct socket *, void *))transferwrite;
321 sk->errcb = (void (*)(struct socket *, int, void *))transfererr;
322}
323
18f56d13 324static int tryreq(struct transfer *transfer)
d3372da9 325{
326 struct fnetnode *fn;
327 struct fnetpeer *peer;
18f56d13 328
329 if((fn = transfer->fn) != NULL)
330 {
331 if(fn->state != FNN_EST)
332 {
333 transfer->close = 1;
334 return(1);
335 }
336 peer = fnetfindpeer(fn, transfer->peerid);
337 } else {
338 peer = NULL;
339 for(fn = fnetnodes; fn != NULL; fn = fn->next)
340 {
341 if((fn->state == FNN_EST) && (fn->fnet == transfer->fnet) && ((peer = fnetfindpeer(fn, transfer->peerid)) != NULL))
342 break;
343 }
344 }
345 if(peer != NULL)
6329b4ba 346 {
347 time(&transfer->lastreq);
18f56d13 348 return(fn->fnet->reqconn(peer));
6329b4ba 349 }
18f56d13 350 return(1);
351}
352
353void trytransferbypeer(struct fnet *fnet, wchar_t *peerid)
354{
355 struct transfer *transfer;
356
357 for(transfer = transfers; transfer != NULL; transfer = transfer->next)
358 {
359 if((transfer->dir == TRNSD_DOWN) && (transfer->state == TRNS_WAITING))
360 {
361 if((transfer->fnet == fnet) && !wcscmp(transfer->peerid, peerid))
362 {
363 if(!tryreq(transfer))
364 return;
365 }
366 }
367 }
368}
369
370void bumptransfer(struct transfer *transfer)
371{
d3372da9 372 time_t now;
373
374 if((now = time(NULL)) < transfer->timeout)
375 {
18f56d13 376
d3372da9 377 if(transfer->etimer == NULL)
378 transfer->etimer = timercallback(transfer->timeout, (void (*)(int, void *))transexpire, transfer);
379 return;
380 }
381 if(transfer->etimer != NULL)
382 canceltimer(transfer->etimer);
383 switch(transfer->state)
384 {
385 case TRNS_WAITING:
d3372da9 386 transfer->etimer = timercallback(transfer->timeout = (time(NULL) + 30), (void (*)(int, void *))transexpire, transfer);
387 if(now - transfer->lastreq > 30)
18f56d13 388 tryreq(transfer);
d3372da9 389 break;
390 case TRNS_HS:
391 if(transfer->dir == TRNSD_UP)
392 {
393 if(now - transfer->activity < 60)
394 transfer->etimer = timercallback(transfer->timeout = (time(NULL) + 60), (void (*)(int, void *))transexpire, transfer);
395 else
396 transfer->close = 1;
397 } else if(transfer->dir == TRNSD_DOWN) {
398 if(now - transfer->activity < 60)
399 transfer->etimer = timercallback(transfer->timeout = (time(NULL) + 60), (void (*)(int, void *))transexpire, transfer);
400 else
401 resettransfer(transfer);
402 }
403 break;
404 case TRNS_MAIN:
405 if(transfer->dir == TRNSD_UP)
406 {
407 if(now - transfer->activity < 300)
408 transfer->etimer = timercallback(transfer->timeout = (time(NULL) + 300), (void (*)(int, void *))transexpire, transfer);
409 else
410 transfer->close = 1;
411 }
412 break;
413 }
414}
415
416void transfersetactivity(struct transfer *transfer, wchar_t *desc)
417{
418 time(&transfer->activity);
419 if(desc != NULL)
420 {
421 if(transfer->actdesc != NULL)
422 free(transfer->actdesc);
423 transfer->actdesc = swcsdup(desc);
424 }
425 bumptransfer(transfer);
426 CBCHAINDOCB(transfer, trans_act, transfer);
427}
428
429void transfersetstate(struct transfer *transfer, int newstate)
430{
431 transfer->state = newstate;
432 if(transfer->etimer != NULL)
433 canceltimer(transfer->etimer);
434 transfersetactivity(transfer, NULL);
435 CBCHAINDOCB(transfer, trans_ac, transfer, L"state");
436}
437
438void transfersetnick(struct transfer *transfer, wchar_t *newnick)
439{
440 if(transfer->peernick != NULL)
441 free(transfer->peernick);
442 transfer->peernick = swcsdup(newnick);
443 CBCHAINDOCB(transfer, trans_ac, transfer, L"nick");
444}
445
446void transfersetsize(struct transfer *transfer, int newsize)
447{
448 transfer->size = newsize;
449 CBCHAINDOCB(transfer, trans_ac, transfer, L"size");
450}
451
452void transferseterror(struct transfer *transfer, int error)
453{
454 transfer->error = error;
455 CBCHAINDOCB(transfer, trans_ac, transfer, L"error");
456}
457
458void transfersetpath(struct transfer *transfer, wchar_t *path)
459{
460 if(transfer->path != NULL)
461 free(transfer->path);
462 transfer->path = swcsdup(path);
463 CBCHAINDOCB(transfer, trans_ac, transfer, L"path");
464}
465
2c086721 466void transfersethash(struct transfer *transfer, struct hash *hash)
467{
468 if(transfer->hash != NULL)
469 freehash(transfer->hash);
470 transfer->hash = hash;
471 CBCHAINDOCB(transfer, trans_ac, transfer, L"hash");
472}
473
d3372da9 474int slotsleft(void)
475{
476 struct transfer *transfer;
477 int slots;
478
479 slots = confgetint("transfer", "slots");
480 for(transfer = transfers; (transfer != NULL) && (slots > 0); transfer = transfer->next)
481 {
482 if((transfer->dir == TRNSD_UP) && (transfer->state == TRNS_MAIN) && !transfer->flags.b.minislot)
483 slots--;
484 }
485 return(slots);
486}
487
488static void killfilter(struct transfer *transfer)
489{
490 if(transfer->filter != -1)
491 {
492 kill(-transfer->filter, SIGHUP);
493 transfer->filter = -1;
494 }
495 if(transfer->localend)
496 {
497 transfer->localend->readcb = NULL;
498 transfer->localend->writecb = NULL;
499 transfer->localend->errcb = NULL;
500 putsock(transfer->localend);
501 transfer->localend = NULL;
502 }
503 if(transfer->filterout)
504 {
505 transfer->filterout->readcb = NULL;
506 putsock(transfer->filterout);
507 transfer->filterout = NULL;
508 }
509 if(transfer->filterbuf)
510 {
511 free(transfer->filterbuf);
512 transfer->filterbuf = NULL;
513 }
514 transfer->filterbufsize = transfer->filterbufdata = 0;
515}
516
517static char *findfilter(struct passwd *pwd)
518{
519 char *path, *filtername;
520
521 if((path = sprintf2("%s/.dcdl-filter", pwd->pw_dir)) != NULL)
522 {
523 if(!access(path, X_OK))
524 return(path);
525 free(path);
526 }
527 if((filtername = icwcstombs(confgetstr("transfer", "filter"), NULL)) == NULL)
528 {
529 flog(LOG_WARNING, "could not convert filter name into local charset: %s", strerror(errno));
530 } else {
531 if(strchr(filtername, '/') == NULL)
532 {
533 if((path = sprintf2("/etc/%s", filtername)) != NULL)
534 {
535 if(!access(path, X_OK))
536 {
537 free(filtername);
538 return(path);
539 }
540 free(path);
541 }
542 if((path = sprintf2("/usr/etc/%s", filtername)) != NULL)
543 {
544 if(!access(path, X_OK))
545 {
546 free(filtername);
547 return(path);
548 }
549 free(path);
550 }
551 if((path = sprintf2("/usr/local/etc/%s", filtername)) != NULL)
552 {
553 if(!access(path, X_OK))
554 {
555 free(filtername);
556 return(path);
557 }
558 free(path);
559 }
560 } else {
561 if(!access(filtername, X_OK))
562 return(filtername);
563 }
564 free(filtername);
565 }
566 return(NULL);
567}
568
569static void filterread(struct socket *sk, struct transfer *transfer)
570{
571 char *buf, *p, *p2;
572 size_t bufsize;
573 wchar_t *cmd, *arg;
574
575 if((buf = sockgetinbuf(sk, &bufsize)) == NULL)
576 return;
577 bufcat(transfer->filterbuf, buf, bufsize);
578 free(buf);
5b193db0 579 while((p = memchr(transfer->filterbuf, '\n', transfer->filterbufdata)) != NULL)
d3372da9 580 {
581 *(p++) = 0;
582 if((p2 = strchr(transfer->filterbuf, ' ')) != NULL)
583 *(p2++) = 0;
584 if((cmd = icmbstowcs(transfer->filterbuf, NULL)) != NULL)
585 {
586 arg = NULL;
587 if(p2 != NULL)
588 {
589 if((arg = icmbstowcs(p2, NULL)) == NULL)
13b303d4 590 flog(LOG_WARNING, "filter sent a string which could not be converted into the local charset: %s: %s", p2, strerror(errno));
d3372da9 591 }
592 CBCHAINDOCB(transfer, trans_filterout, transfer, cmd, arg);
593 if(arg != NULL)
594 free(arg);
595 free(cmd);
596 } else {
597 flog(LOG_WARNING, "filter sent a string which could not be converted into the local charset: %s: %s", transfer->filterbuf, strerror(errno));
598 }
599 memmove(transfer->filterbuf, p, transfer->filterbufdata -= (p - transfer->filterbuf));
600 }
601}
602
603static void filterexit(pid_t pid, int status, void *data)
604{
605 struct transfer *transfer;
606
607 for(transfer = transfers; transfer != NULL; transfer = transfer->next)
608 {
609 if(transfer->filter == pid)
610 {
611 transfer->filter = -1;
612 killfilter(transfer);
613 if(WEXITSTATUS(status))
614 {
615 resettransfer(transfer);
616 } else {
617 freetransfer(transfer);
618 }
a751b0d3 619 trytransferbypeer(transfer->fnet, transfer->peerid);
d3372da9 620 break;
621 }
622 }
623}
624
625int forkfilter(struct transfer *transfer)
626{
627 char *filtername, *filename, *peerid, *buf;
628 wchar_t *wfilename;
629 struct passwd *pwent;
630 pid_t pid;
631 int inpipe, outpipe;
632 char **argv;
633 size_t argvsize, argvdata;
634 struct socket *insock, *outsock;
9ec790e8 635 struct wcspair *ta;
d3372da9 636 char *rec, *val;
637
638 wfilename = transfer->path;
639 if(transfer->fnet->filebasename != NULL)
640 wfilename = transfer->fnet->filebasename(wfilename);
641 if(transfer->auth == NULL)
642 {
643 flog(LOG_WARNING, "tried to fork filter for transfer with NULL authhandle (tranfer %i)", transfer->id);
644 errno = EACCES;
645 return(-1);
646 }
647 if((pwent = getpwuid(transfer->owner)) == NULL)
648 {
649 flog(LOG_WARNING, "no passwd entry for uid %i (found in transfer %i)", transfer->owner, transfer->id);
650 errno = EACCES;
651 return(-1);
652 }
653 if((filtername = findfilter(pwent)) == NULL)
654 {
655 flog(LOG_WARNING, "could not find filter for user %s", pwent->pw_name);
656 errno = ENOENT;
657 return(-1);
658 }
659 if((filename = icwcstombs(wfilename, NULL)) == NULL)
660 {
661 if((buf = icwcstombs(wfilename, "UTF-8")) == NULL)
662 {
663 flog(LOG_WARNING, "could convert transfer filename to neither local charset nor UTF-8: %s", strerror(errno));
664 return(-1);
665 }
666 filename = sprintf2("utf8-%s", buf);
667 free(buf);
668 }
669 if((peerid = icwcstombs(transfer->peerid, NULL)) == NULL)
670 {
671 if((buf = icwcstombs(transfer->peerid, "UTF-8")) == NULL)
672 {
673 flog(LOG_WARNING, "could convert transfer peerid to neither local charset nor UTF-8: %s", strerror(errno));
674 free(filename);
675 return(-1);
676 }
677 peerid = sprintf2("utf8-%s", buf);
678 free(buf);
679 }
680 if((pid = forksess(transfer->owner, transfer->auth, filterexit, NULL, FD_PIPE, 0, O_WRONLY, &inpipe, FD_PIPE, 1, O_RDONLY, &outpipe, FD_FILE, 2, O_RDWR, "/dev/null", FD_END)) < 0)
681 {
682 flog(LOG_WARNING, "could not fork session for filter for transfer %i: %s", transfer->id, strerror(errno));
683 return(-1);
684 }
685 if(pid == 0)
686 {
687 argv = NULL;
688 argvsize = argvdata = 0;
689 buf = sprintf2("%i", transfer->size);
690 addtobuf(argv, filtername);
691 addtobuf(argv, filename);
692 addtobuf(argv, buf);
693 addtobuf(argv, peerid);
082b0419 694 if(transfer->hash)
695 {
696 if((buf = icwcstombs(unparsehash(transfer->hash), NULL)) != NULL)
697 {
698 /* XXX: I am very doubtful of this, but it can just as
699 * well be argued that all data should be presented as
700 * key-value pairs. */
701 addtobuf(argv, "hash");
702 addtobuf(argv, buf);
703 } else {
704 flog(LOG_WARNING, "could not convert hash to local charset");
705 }
706 }
d3372da9 707 for(ta = transfer->args; ta != NULL; ta = ta->next)
708 {
9ec790e8 709 if((rec = icwcstombs(ta->key, NULL)) == NULL)
d3372da9 710 continue;
711 if((val = icwcstombs(ta->val, NULL)) == NULL)
712 continue;
713 addtobuf(argv, rec);
714 addtobuf(argv, val);
715 }
716 addtobuf(argv, NULL);
717 execv(filtername, argv);
718 flog(LOG_WARNING, "could not exec filter %s: %s", filtername, strerror(errno));
719 exit(127);
720 }
721 insock = wrapsock(inpipe);
722 outsock = wrapsock(outpipe);
723 /* Really, really strange thing here - sometimes the kernel would
724 * return POLLIN on insock, even though it's a write-side
725 * pipe. The corresponding read on the pipe naturally returns
726 * EBADF, causing doldacond to think there's something wrong with
727 * the fd, and thus it closes it. Until I can find out whyever the
728 * kernel gives a POLLIN on the fd (if I can at all...), I'll just
729 * set ignread on insock for now. */
730 insock->ignread = 1;
731 transfer->filter = pid;
732 transfersetlocalend(transfer, insock);
733 getsock(transfer->filterout = outsock);
734 outsock->data = transfer;
735 outsock->readcb = (void (*)(struct socket *, void *))filterread;
736 putsock(insock);
737 putsock(outsock);
738 free(filtername);
739 free(filename);
740 free(peerid);
741 return(0);
742}
743
744static int run(void)
745{
746 struct transfer *transfer, *next;
747
748 for(transfer = transfers; transfer != NULL; transfer = transfer->next)
749 {
750 if((transfer->endpos >= 0) && (transfer->state == TRNS_MAIN) && (transfer->localend != NULL) && (transfer->localend->state == SOCK_EST) && (transfer->curpos >= transfer->endpos))
751 {
752 if((transfer->iface != NULL) && (transfer->iface->endofdata != NULL))
753 transfer->iface->endofdata(transfer, transfer->ifacedata);
754 closesock(transfer->localend);
755 }
756 }
757 for(transfer = transfers; transfer != NULL; transfer = next)
758 {
759 next = transfer->next;
760 if(transfer->close)
761 {
762 transferdetach(transfer);
763 freetransfer(transfer);
764 continue;
765 }
766 }
767 return(0);
768}
769
770static struct configvar myvars[] =
771{
772 {CONF_VAR_INT, "slots", {.num = 3}},
773 {CONF_VAR_INT, "ultos", {.num = SOCK_TOS_MAXTP}},
774 {CONF_VAR_INT, "dltos", {.num = SOCK_TOS_MAXTP}},
775 {CONF_VAR_STRING, "filter", {.str = L"dc-filter"}},
776 {CONF_VAR_END}
777};
778
779static struct module me =
780{
781 .conf =
782 {
783 .vars = myvars
784 },
785 .name = "transfer",
786 .run = run
787};
788
789MODULE(me);
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