1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691
|
/*
* This file is part of the Green End SFTP Server.
* Copyright (C) 2007, 2009, 2011, 2014 Richard Kettlewell
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
/** @file sftpserver.c @brief SFTP server implementation */
#include "sftpserver.h"
#include "queue.h"
#include "alloc.h"
#include "debug.h"
#include "utils.h"
#include "sftp.h"
#include "send.h"
#include "parse.h"
#include "types.h"
#include "globals.h"
#include "serialize.h"
#include "xfns.h"
#include <assert.h>
#include <arpa/inet.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <signal.h>
#include <locale.h>
#include <langinfo.h>
#include <getopt.h>
#include <pwd.h>
#include <grp.h>
#include <sys/socket.h>
#include <netdb.h>
#include <sys/wait.h>
#include <stdio.h>
#include <syslog.h>
#include <netinet/in.h>
#if HAVE_SYS_PRCTL_H
# include <sys/prctl.h>
#endif
/* Linux and BSD have daemon() but other UNIX platforms tend not to */
#if ! HAVE_DAEMON
int daemon(int, int);
#endif
/* LOG_FTP doesn't exist everywhere */
#ifndef LOG_FTP
# define LOG_FTP LOG_DAEMON
#endif
/* Forward declarations */
static void *worker_init(void);
static void worker_cleanup(void *wdv);
static void process_sftpjob(void *jv, void *wdv, struct allocator *a);
static void sftp_service(void);
/** @brief Local character encoding */
static const char *local_encoding;
#if NTHREADS > 1
/** @brief Queue-specific callbacks for processing SFTP requests */
static const struct queuedetails workqueue_details = {
worker_init,
process_sftpjob,
worker_cleanup
};
#endif
const struct sftpprotocol *protocol = &sftp_preinit;
const char sendtype[] = "response";
/* Options */
static const struct option options[] = {
{ "help", no_argument, 0, 'h' },
{ "version", no_argument, 0, 'V' },
{ "debug", no_argument, 0, 'd' },
{ "debug-file", required_argument, 0, 'D' },
#if DAEMON
{ "chroot", required_argument, 0, 'r' },
{ "user", required_argument, 0, 'u' },
{ "listen", required_argument, 0, 'L' },
{ "host", required_argument, 0, 'H' },
{ "background", no_argument, 0, 'b' },
{ "ipv4", no_argument, 0, '4' },
{ "ipv6", no_argument, 0, '6' },
#endif
{ "readonly", no_argument, 0, 'R' },
{ 0, 0, 0, 0 }
};
/* display usage message and terminate */
static void attribute((noreturn)) help(void) {
xprintf("Usage:\n"
" gesftpserver [OPTIONS]\n"
"\n"
"Green End SFTP server. Not intended for interactive use!\n"
"\n");
xprintf("Options:\n"
" --help, -h Display usage message\n"
" --version, -V Display version number\n"
#if DAEMON
" --chroot, -r PATH Change root to PATH\n"
" --user, -u USER Change to user USER\n"
" --listen, -L PORT Listen on PORT\n"
" --host, -H HOSTNAME Bind to HOSTNAME (default *)\n"
" -4|-6 Force IPv4 or IPv6 for --listen\n"
" --background, -b Daemonize\n"
#endif
" --readonly, -R Read-only mode\n");
exit(0);
}
/* display version number and terminate */
static void attribute((noreturn)) version(void) {
xprintf("Green End SFTP server version %s\n", VERSION);
exit(0);
}
/* Initialization */
/** @brief Implementation of @ref SSH_FXP_INIT
* @param job Job
* @return Error code
*/
static uint32_t sftp_init(struct sftpjob *job) {
uint32_t version;
size_t offset;
int n;
/* Cannot initialize more than once */
if(protocol != &sftp_preinit)
return SSH_FX_FAILURE;
pcheck(sftp_parse_uint32(job, &version));
switch(version) {
case 0: case 1: case 2:
return SSH_FX_OP_UNSUPPORTED;
case 3:
protocol = &sftp_v3;
#if REVERSE_SYMLINK
reverse_symlink = 1;
#endif
break;
case 4:
protocol = &sftp_v4;
break;
case 5:
protocol = &sftp_v5;
break;
default:
protocol = &sftp_v6;
break;
}
sftp_send_begin(job->worker);
sftp_send_uint8(job->worker, SSH_FXP_VERSION);
sftp_send_uint32(job->worker, protocol->version);
for(n = 0; n < protocol->nextensions; ++n) {
sftp_send_string(job->worker, protocol->extensions[n].name);
sftp_send_string(job->worker, protocol->extensions[n].data);
}
if(protocol->version >= 4) {
/* e.g. draft-ietf-secsh-filexfer-04.txt, 4.3. This allows us to assume the
* client always sends \n, freeing us from the burden of translating text
* files. However we still have to deal with the different rules for reads
* and writes on text files.
*/
sftp_send_string(job->worker, "newline");
sftp_send_string(job->worker, "\n");
}
if(protocol->version == 5) {
/* draft-ietf-secsh-filexfer-05.txt 4.4 */
sftp_send_string(job->worker, "supported");
offset = sftp_send_sub_begin(job->worker);
sftp_send_uint32(job->worker, (SSH_FILEXFER_ATTR_SIZE
|SSH_FILEXFER_ATTR_PERMISSIONS
|SSH_FILEXFER_ATTR_ACCESSTIME
|SSH_FILEXFER_ATTR_MODIFYTIME
|SSH_FILEXFER_ATTR_OWNERGROUP
|SSH_FILEXFER_ATTR_SUBSECOND_TIMES));
sftp_send_uint32(job->worker, 0); /* supported-attribute-bits */
sftp_send_uint32(job->worker, (SSH_FXF_ACCESS_DISPOSITION
|SSH_FXF_APPEND_DATA
|SSH_FXF_APPEND_DATA_ATOMIC
|SSH_FXF_TEXT_MODE));
sftp_send_uint32(job->worker, 0xFFFFFFFF);
/* If we send a non-0 max-read-size then we promise to return that many
* bytes if asked for it and to mean EOF or error if we return less.
*
* This is completely useless. If we end up reading from something like a
* pipe then we may get a short read before EOF. If we've sent a non-0
* max-read-size then the client will wrongly interpret this as EOF.
*
* Therefore we send 0 here.
*/
sftp_send_uint32(job->worker, 0);
for(n = 0; n < protocol->nextensions; ++n)
sftp_send_string(job->worker, protocol->extensions[n].name);
sftp_send_sub_end(job->worker, offset);
}
if(protocol->version >= 6) {
/* draft-ietf-secsh-filexfer-13.txt 5.4 */
sftp_send_string(job->worker, "supported2");
offset = sftp_send_sub_begin(job->worker);
sftp_send_uint32(job->worker, (SSH_FILEXFER_ATTR_SIZE
|SSH_FILEXFER_ATTR_PERMISSIONS
|SSH_FILEXFER_ATTR_ACCESSTIME
|SSH_FILEXFER_ATTR_MODIFYTIME
|SSH_FILEXFER_ATTR_OWNERGROUP
|SSH_FILEXFER_ATTR_SUBSECOND_TIMES));
/* Note - the client is invited to only send these bits, rather than
* promised that we never send anything else. Therefore 'supported-' is a
* misnomer. In particular we will send SSH_FILEXFER_ATTR_CTIME but cannot
* set the ctime of files and so follow the SHOULD that tells us to reject
* attempts to do so. */
sftp_send_uint32(job->worker, 0); /* supported-attribute-bits */
sftp_send_uint32(job->worker, (SSH_FXF_ACCESS_DISPOSITION
|SSH_FXF_APPEND_DATA
|SSH_FXF_APPEND_DATA_ATOMIC
|SSH_FXF_TEXT_MODE
|SSH_FXF_NOFOLLOW
|SSH_FXF_DELETE_ON_CLOSE)); /* supported-open-flags */
sftp_send_uint32(job->worker, 0xFFFFFFFF); /* supported-access-mask */
sftp_send_uint32(job->worker, 0); /* max-read-size - see above */
sftp_send_uint16(job->worker, 1); /* supported-open-block-vector */
sftp_send_uint16(job->worker, 1); /* supported-block-vector */
sftp_send_uint32(job->worker, 0); /* attrib-extension-count */
/* attrib-extensions would go here */
sftp_send_uint32(job->worker, protocol->nextensions); /* extension-count */
for(n = 0; n < protocol->nextensions; ++n)
sftp_send_string(job->worker, protocol->extensions[n].name);
sftp_send_sub_end(job->worker, offset);
/* e.g. draft-ietf-secsh-filexfer-13.txt, 5.5 */
sftp_send_string(job->worker, "versions");
sftp_send_string(job->worker, "3,4,5,6");
}
{
/* vendor-id is defined in some of the SFTP drafts but not all.
* Whatever. */
sftp_send_string(job->worker, "vendor-id");
offset = sftp_send_sub_begin(job->worker);
sftp_send_string(job->worker, "Green End");
sftp_send_string(job->worker, "Green End SFTP Server");
sftp_send_string(job->worker, VERSION);
sftp_send_uint64(job->worker, 0);
sftp_send_sub_end(job->worker, offset);
}
/* This simple extension documents the order we expect for SSH_FXP_SYMLINK
* args. See the comment in v3.c for further details. */
sftp_send_string(job->worker, "symlink-order@rjk.greenend.org.uk");
if(reverse_symlink)
sftp_send_string(job->worker, "targetpath-linkpath");
else
sftp_send_string(job->worker, "linkpath-targetpath");
if(protocol->version >= 6) {
/* Just in case l-) */
sftp_send_string(job->worker, "link-order@rjk.greenend.org.uk");
sftp_send_string(job->worker, "linkpath-targetpath");
}
sftp_send_end(job->worker);
#if NTHREADS > 1
if(protocol->version < 6) {
/* Now we are initialized we can safely process other jobs in the
* background. We can't do this for v6 because the first request might be
* version-select. */
D(("normal work queue creation"));
queue_init(&workqueue, &workqueue_details, NTHREADS);
}
#endif
return HANDLER_RESPONDED;
}
/** @brief Requests supported prior to initialization */
static const struct sftpcmd sftppreinittab[] = {
{ SSH_FXP_INIT, sftp_init }
};
/** @brief Protocol supported prior to initialization
*
* Only @ref SSH_FXP_INIT is supported at first. */
const struct sftpprotocol sftp_preinit = {
sizeof sftppreinittab / sizeof (struct sftpcmd),
sftppreinittab,
3,
0xFFFFFFFF, /* never used */
SSH_FX_OP_UNSUPPORTED,
0,
0,
0,
sftp_v3_encode,
0,
0,
0
};
/* Worker setup/teardown */
/** @brief Worker thread setup for processing SFTP requests
* @return Initialized worker state
*/
static void *worker_init(void) {
struct worker *w = xmalloc(sizeof *w);
memset(w, 0, sizeof *w);
w->buffer = 0;
if((w->utf8_to_local = iconv_open(local_encoding, "UTF-8"))
== (iconv_t)-1)
fatal("error calling iconv_open(%s,UTF-8): %s",
local_encoding, strerror(errno));
if((w->local_to_utf8 = iconv_open("UTF-8", local_encoding))
== (iconv_t)-1)
fatal("error calling iconv_open(UTF-8,%s): %s",
local_encoding, strerror(errno));
return w;
}
/** @brief Worker thread cleanup after processing SFTP requests
* @param wdv Worker state created by worker_init()
*/
static void worker_cleanup(void *wdv) {
struct worker *w = wdv;
iconv_close(w->utf8_to_local);
iconv_close(w->local_to_utf8);
free(w->buffer);
free(w);
}
/* Main loop */
/** @brief Worker thread function to process an SFTP job
* @param jv Job from queue
* @param wdv Worker state created by worker_init()
* @param a Allocator to use
*
* Only called in a worker thread, except prior to @ref SSH_FXP_INIT
* completing. */
static void process_sftpjob(void *jv, void *wdv, struct allocator *a) {
struct sftpjob *const job = jv;
int l, r, type = 0;
uint32_t status, rc;
job->a = a;
job->id = 0;
job->worker = wdv;
job->ptr = job->data;
job->left = job->len;
/* Empty messages are never valid */
if(!job->left) {
sftp_send_status(job, SSH_FX_BAD_MESSAGE, "empty request");
goto done;
}
/* Get the type */
type = *job->ptr++;
--job->left;
/* Everything but SSH_FXP_INIT has an ID field */
if(type != SSH_FXP_INIT)
if((rc = sftp_parse_uint32(job, &job->id)) != SSH_FX_OK) {
sftp_send_status(job, rc, "missing ID field");
goto done;
}
/* Locate the handler for the command */
l = 0;
r = protocol->ncommands - 1;
while(l <= r) {
const int m = (l + r) / 2;
const int mtype = protocol->commands[m].type;
if(type < mtype)
r = m - 1;
else if(type > mtype)
l = m + 1;
else {
/* Serialize */
serialize(job);
/* Run the handler */
status = protocol->commands[m].handler(job);
/* Send a response if necessary */
switch(status) {
case HANDLER_RESPONDED: break;
default: sftp_send_status(job, status, 0); break;
}
goto done;
}
}
/* We did not find a handler */
sftp_send_status(job, SSH_FX_OP_UNSUPPORTED, 0);
done:
serialize_remove_job(job);
free(job->data);
free(job);
#if NTHREADS > 1
if(type != SSH_FXP_INIT && workqueue == 0) {
/* This must have been the first job after initializing to version 6. It
* might or might not have been version-select but either way it's now safe
* to go multithreaded. */
D(("late work queue creation"));
queue_init(&workqueue, &workqueue_details, NTHREADS);
}
#endif
return;
}
#if DAEMON
static void sigchld_handler(int attribute((unused)) sig) {
const int save_errno = errno;
int w;
while(waitpid(-1, &w, WNOHANG) > 0)
;
errno = save_errno;
}
#endif
int main(int argc, char **argv) {
int n;
const char *bn;
#if DAEMON
iconv_t cd;
int listenfd = -1;
const char *root = 0, *user = 0;
struct passwd *pw = 0;
const char *host = 0, *port = 0;
int daemonize = 0;
struct addrinfo hints;
memset(&hints, 0, sizeof hints);
hints.ai_flags = AI_PASSIVE;
hints.ai_family = PF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
#endif
/* Find basename of executable */
if(!(bn = strrchr(argv[0], '/')))
bn = argv[0];
/* Run in debug mode */
if(strstr(bn, "-debug")) {
const char *home = getenv("HOME");
sftp_debugpath = xmalloc(strlen(home) + 40);
sprintf((char *)sftp_debugpath, "%s/.gesftpserver.%ju",
home, (uintmax_t)getpid());
sftp_debugging = 1;
}
/* Run in readonly mode */
if(strstr(bn, "-ro"))
readonly = 1;
/* We need I18N support for filename encoding */
setlocale(LC_CTYPE, "");
local_encoding = nl_langinfo(CODESET);
while((n = getopt_long(argc, argv, "hVdD:r:u:H:L:b46R",
options, 0)) >= 0) {
switch(n) {
case 'h': help();
case 'V': version();
case 'd': sftp_debugging = 1; break;
case 'D': sftp_debugging = 1; sftp_debugpath = optarg; break;
#if DAEMON
case 'r': root = optarg; break;
case 'u': user = optarg; break;
case 'H': host = optarg; break;
case 'L': port = optarg; break;
case 'b': daemonize = 1; break;
case '4': hints.ai_family = PF_INET; break;
case '6': hints.ai_family = PF_INET6; break;
#endif
case 'R': readonly = 1; break;
default: exit(1);
}
}
#if DAEMON
if(daemonize && !port)
fatal("--background requires --port");
#endif
/* If writes to the client fail then we'll get EPIPE. Arguably it might
* better just to die the SIGPIPE but reporting an EPIPE is pretty harmless.
*
* If by some chance we end up writing to a pipe then we'd rather have an
* EPIPE so we can report it back to the client than a SIGPIPE which will
* (from the client's POV) cause us to close the connection without
* responding to at least one command.
*
* Therefore, we ignore SIGPIPE.
*
*
* As for other signals, we assume that if someone invokes us with an unusual
* signal disposition, they have a good reason for it.
*/
signal(SIGPIPE, SIG_IGN);
#if HAVE_PRCTL
if(prctl(PR_SET_DUMPABLE, 0L) < 0)
fatal("error calling prctl: %s", strerror(errno));
#endif
#if DAEMON
if(user) {
/* Look up the user */
if(!(pw = getpwnam(user)))
fatal("no such user as %s", user);
if(initgroups(user, pw->pw_gid))
fatal("error calling initgroups: %s", strerror(errno));
}
if(port) {
struct addrinfo *res;
int rc;
static const int one = 1;
struct sigaction sa;
sa.sa_handler = sigchld_handler;
sa.sa_flags = SA_RESTART;
sigemptyset(&sa.sa_mask);
if(sigaction(SIGCHLD, &sa, 0) < 0)
fatal("error calling sigaction: %s", strerror(errno));
if((rc = getaddrinfo(host, port, &hints, &res))) {
if(host)
fatal("error resolving host %s port %s: %s",
host, port, gai_strerror(rc));
else
fatal("error resolving port %s: %s",
port, gai_strerror(rc));
}
if((listenfd = socket(res->ai_family, res->ai_socktype,
res->ai_protocol)) < 0)
fatal("error calling socket: %s", strerror(errno));
if(setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof one) < 0)
fatal("error calling setsockopt: %s", strerror(errno));
if(bind(listenfd, res->ai_addr, res->ai_addrlen) < 0)
fatal("error calling socket: %s", strerror(errno));
if(listen(listenfd, SOMAXCONN) < 0)
fatal("error calling listen: %s", strerror(errno));
} else if(host)
fatal("--host makes no sense without --port");
if((cd = iconv_open(local_encoding, "UTF-8")) == (iconv_t)-1)
fatal("error calling iconv_open(%s,UTF-8): %s",
local_encoding, strerror(errno));
iconv_close(cd);
if((cd = iconv_open("UTF-8", local_encoding)) == (iconv_t)-1)
fatal("error calling iconv_open(UTF-8, %s): %s",
local_encoding, strerror(errno));
iconv_close(cd);
if(root) {
/* Enter our chroot */
if(chdir(root) < 0)
fatal("error calling chdir %s: %s", root, strerror(errno));
if(chroot(".") < 0)
fatal("error calling chroot: %s", strerror(errno));
}
if(user) {
/* Become the right user */
assert(pw != 0);
if(setgid(pw->pw_gid) < 0)
fatal("error calling setgid: %s", strerror(errno));
if(setuid(pw->pw_uid) < 0)
fatal("error calling setuid: %s", strerror(errno));
if(setuid(0) >= 0)
fatal("setuid(0) unexpectedly succeeded");
}
if(daemonize) {
openlog(bn, LOG_PID, LOG_FTP);
log_syslog = 1;
if(daemon(0, 0) < 0)
fatal("error calling daemon: %s", strerror(errno));
}
if(!port) {
sftp_service();
return 0;
} else {
for(;;) {
union {
struct sockaddr_in sin;
struct sockaddr_in6 sin6;
struct sockaddr sa;
} addr;
socklen_t addrlen = sizeof addr;
int fd;
if((fd = accept(listenfd, &addr.sa, &addrlen)) >= 0) {
switch(fork()) {
case -1:
/* If we can't fork then we stop trying for a minute */
fprintf(stderr, "fork: %s\n", strerror(errno));
close(fd);
sleep(60);
break;
case 0:
forked();
signal(SIGCHLD, SIG_DFL); /* XXX */
if(dup2(fd, 0) < 0
|| dup2(fd, 1) < 0)
fatal("dup2: %s", strerror(errno));
if(close(fd) < 0
|| close(listenfd) < 0)
fatal("close: %s", strerror(errno));
sftp_service();
_exit(0);
default:
close(fd);
break;
}
}
}
}
#else
sftp_service();
return 0;
#endif
}
/** @brief Process SFTP requests
*
* Requests are always read from FD 0 and responses written to FD 1.
*/
static void sftp_service(void) {
uint32_t len;
struct sftpjob *job;
struct allocator a;
void *const wdv = worker_init();
D(("gesftpserver %s starting up", VERSION));
/* draft -13 s7.6 "The server SHOULD NOT apply a 'umask' to the mode
* bits". */
umask(0);
while(!do_read(0, &len, sizeof len)) {
job = xmalloc(sizeof *job);
job->len = ntohl(len);
if(!job->len || job->len > MAXREQUEST)
fatal("invalid request size");
job->data = xmalloc(job->len);
if(do_read(0, job->data, job->len))
/* Job data missing or truncated - the other end is not playing the game
* fair so we give up straight away */
fatal("read error: unexpected eof");
if(sftp_debugging) {
D(("request:"));
sftp_debug_hexdump(job->data, job->len);
}
/* See serialize.c for the serialization rules we follow */
queue_serializable_job(job);
/* We process the job in a background thread, except that the background
* threads don't exist until SSH_FXP_INIT has succeeded. */
#if NTHREADS > 1
if(workqueue) {
queue_add(workqueue, job);
continue;
}
#endif
sftp_alloc_init(&a);
process_sftpjob(job, wdv, &a);
sftp_alloc_destroy(&a);
/* process_sftpjob() frees JOB when it has finished with it */
}
#if NTHREADS > 1
queue_destroy(workqueue);
#endif
worker_cleanup(wdv);
}
/*
Local Variables:
c-basic-offset:2
comment-column:40
fill-column:79
indent-tabs-mode:nil
End:
*/
|