1 /* $OpenBSD: if_iwm.c,v 1.39 2015/03/23 00:35:19 jsg Exp $ */ 2 3 /* 4 * Copyright (c) 2014 genua mbh <info@genua.de> 5 * Copyright (c) 2014 Fixup Software Ltd. 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 /*- 21 * Based on BSD-licensed source modules in the Linux iwlwifi driver, 22 * which were used as the reference documentation for this implementation. 23 * 24 * Driver version we are currently based off of is 25 * Linux 3.14.3 (tag id a2df521e42b1d9a23f620ac79dbfe8655a8391dd) 26 * 27 *********************************************************************** 28 * 29 * This file is provided under a dual BSD/GPLv2 license. When using or 30 * redistributing this file, you may do so under either license. 31 * 32 * GPL LICENSE SUMMARY 33 * 34 * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. 35 * 36 * This program is free software; you can redistribute it and/or modify 37 * it under the terms of version 2 of the GNU General Public License as 38 * published by the Free Software Foundation. 39 * 40 * This program is distributed in the hope that it will be useful, but 41 * WITHOUT ANY WARRANTY; without even the implied warranty of 42 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 43 * General Public License for more details. 44 * 45 * You should have received a copy of the GNU General Public License 46 * along with this program; if not, write to the Free Software 47 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 48 * USA 49 * 50 * The full GNU General Public License is included in this distribution 51 * in the file called COPYING. 52 * 53 * Contact Information: 54 * Intel Linux Wireless <ilw@linux.intel.com> 55 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 56 * 57 * 58 * BSD LICENSE 59 * 60 * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. 61 * All rights reserved. 62 * 63 * Redistribution and use in source and binary forms, with or without 64 * modification, are permitted provided that the following conditions 65 * are met: 66 * 67 * * Redistributions of source code must retain the above copyright 68 * notice, this list of conditions and the following disclaimer. 69 * * Redistributions in binary form must reproduce the above copyright 70 * notice, this list of conditions and the following disclaimer in 71 * the documentation and/or other materials provided with the 72 * distribution. 73 * * Neither the name Intel Corporation nor the names of its 74 * contributors may be used to endorse or promote products derived 75 * from this software without specific prior written permission. 76 * 77 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 78 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 79 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 80 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 81 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 82 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 83 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 84 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 85 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 86 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 87 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 88 */ 89 90 /*- 91 * Copyright (c) 2007-2010 Damien Bergamini <damien.bergamini@free.fr> 92 * 93 * Permission to use, copy, modify, and distribute this software for any 94 * purpose with or without fee is hereby granted, provided that the above 95 * copyright notice and this permission notice appear in all copies. 96 * 97 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 98 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 99 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 100 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 101 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 102 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 103 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 104 */ 105 #include <sys/cdefs.h> 106 __FBSDID("$FreeBSD$"); 107 108 #include <sys/param.h> 109 #include <sys/bus.h> 110 #include <sys/endian.h> 111 #include <sys/firmware.h> 112 #include <sys/kernel.h> 113 #include <sys/malloc.h> 114 #include <sys/mbuf.h> 115 #include <sys/mutex.h> 116 #include <sys/module.h> 117 #include <sys/proc.h> 118 #include <sys/rman.h> 119 #include <sys/socket.h> 120 #include <sys/sockio.h> 121 #include <sys/sysctl.h> 122 #include <sys/linker.h> 123 124 #include <machine/endian.h> 125 126 #include <bus/pci/pcivar.h> 127 #include <bus/pci/pcireg.h> 128 129 #include <net/bpf.h> 130 131 #include <net/if.h> 132 #include <net/if_var.h> 133 #include <net/if_arp.h> 134 #include <net/ethernet.h> 135 #include <net/if_dl.h> 136 #include <net/if_media.h> 137 #include <net/if_types.h> 138 #include <net/ifq_var.h> 139 140 #include <netinet/in.h> 141 #include <netinet/in_systm.h> 142 #include <netinet/if_ether.h> 143 #include <netinet/ip.h> 144 145 #include <netproto/802_11/ieee80211_var.h> 146 #include <netproto/802_11/ieee80211_regdomain.h> 147 #include <netproto/802_11/ieee80211_ratectl.h> 148 #include <netproto/802_11/ieee80211_radiotap.h> 149 150 #include "if_iwmreg.h" 151 #include "if_iwmvar.h" 152 #include "if_iwm_debug.h" 153 #include "if_iwm_util.h" 154 #include "if_iwm_mac_ctxt.h" 155 156 static void 157 iwm_mvm_ack_rates(struct iwm_softc *sc, int is2ghz, 158 int *cck_rates, int *ofdm_rates) 159 { 160 int lowest_present_ofdm = 100; 161 int lowest_present_cck = 100; 162 uint8_t cck = 0; 163 uint8_t ofdm = 0; 164 int i; 165 166 if (is2ghz) { 167 for (i = 0; i <= IWM_LAST_CCK_RATE; i++) { 168 cck |= (1 << i); 169 if (lowest_present_cck > i) 170 lowest_present_cck = i; 171 } 172 } 173 for (i = IWM_FIRST_OFDM_RATE; i <= IWM_LAST_NON_HT_RATE; i++) { 174 int adj = i - IWM_FIRST_OFDM_RATE; 175 ofdm |= (1 << adj); 176 if (lowest_present_ofdm > i) 177 lowest_present_ofdm = i; 178 } 179 180 /* 181 * Now we've got the basic rates as bitmaps in the ofdm and cck 182 * variables. This isn't sufficient though, as there might not 183 * be all the right rates in the bitmap. E.g. if the only basic 184 * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps 185 * and 6 Mbps because the 802.11-2007 standard says in 9.6: 186 * 187 * [...] a STA responding to a received frame shall transmit 188 * its Control Response frame [...] at the highest rate in the 189 * BSSBasicRateSet parameter that is less than or equal to the 190 * rate of the immediately previous frame in the frame exchange 191 * sequence ([...]) and that is of the same modulation class 192 * ([...]) as the received frame. If no rate contained in the 193 * BSSBasicRateSet parameter meets these conditions, then the 194 * control frame sent in response to a received frame shall be 195 * transmitted at the highest mandatory rate of the PHY that is 196 * less than or equal to the rate of the received frame, and 197 * that is of the same modulation class as the received frame. 198 * 199 * As a consequence, we need to add all mandatory rates that are 200 * lower than all of the basic rates to these bitmaps. 201 */ 202 203 if (IWM_RATE_24M_INDEX < lowest_present_ofdm) 204 ofdm |= IWM_RATE_BIT_MSK(24) >> IWM_FIRST_OFDM_RATE; 205 if (IWM_RATE_12M_INDEX < lowest_present_ofdm) 206 ofdm |= IWM_RATE_BIT_MSK(12) >> IWM_FIRST_OFDM_RATE; 207 /* 6M already there or needed so always add */ 208 ofdm |= IWM_RATE_BIT_MSK(6) >> IWM_FIRST_OFDM_RATE; 209 210 /* 211 * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP. 212 * Note, however: 213 * - if no CCK rates are basic, it must be ERP since there must 214 * be some basic rates at all, so they're OFDM => ERP PHY 215 * (or we're in 5 GHz, and the cck bitmap will never be used) 216 * - if 11M is a basic rate, it must be ERP as well, so add 5.5M 217 * - if 5.5M is basic, 1M and 2M are mandatory 218 * - if 2M is basic, 1M is mandatory 219 * - if 1M is basic, that's the only valid ACK rate. 220 * As a consequence, it's not as complicated as it sounds, just add 221 * any lower rates to the ACK rate bitmap. 222 */ 223 if (IWM_RATE_11M_INDEX < lowest_present_cck) 224 cck |= IWM_RATE_BIT_MSK(11) >> IWM_FIRST_CCK_RATE; 225 if (IWM_RATE_5M_INDEX < lowest_present_cck) 226 cck |= IWM_RATE_BIT_MSK(5) >> IWM_FIRST_CCK_RATE; 227 if (IWM_RATE_2M_INDEX < lowest_present_cck) 228 cck |= IWM_RATE_BIT_MSK(2) >> IWM_FIRST_CCK_RATE; 229 /* 1M already there or needed so always add */ 230 cck |= IWM_RATE_BIT_MSK(1) >> IWM_FIRST_CCK_RATE; 231 232 *cck_rates = cck; 233 *ofdm_rates = ofdm; 234 } 235 236 static void 237 iwm_mvm_mac_ctxt_cmd_common(struct iwm_softc *sc, struct iwm_node *in, 238 struct iwm_mac_ctx_cmd *cmd, uint32_t action) 239 { 240 struct ieee80211com *ic = sc->sc_ic; 241 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 242 struct ieee80211_node *ni = vap->iv_bss; 243 int cck_ack_rates, ofdm_ack_rates; 244 int i; 245 int is2ghz; 246 247 /* 248 * id is the MAC address ID - something to do with MAC filtering. 249 * color - not sure. 250 * 251 * These are both functions of the vap, not of the node. 252 * So, for now, hard-code both to 0 (default). 253 */ 254 cmd->id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(IWM_DEFAULT_MACID, 255 IWM_DEFAULT_COLOR)); 256 cmd->action = htole32(action); 257 258 cmd->mac_type = htole32(IWM_FW_MAC_TYPE_BSS_STA); 259 260 /* 261 * The TSF ID is one of four TSF tracking resources in the firmware. 262 * Read the iwlwifi/mvm code for more details. 263 * 264 * For now, just hard-code it to TSF tracking ID 0; we only support 265 * a single STA mode VAP. 266 * 267 * It's per-vap, not per-node. 268 */ 269 cmd->tsf_id = htole32(IWM_DEFAULT_TSFID); 270 271 IEEE80211_ADDR_COPY(cmd->node_addr, sc->sc_bssid); 272 273 /* 274 * XXX should we error out if in_assoc is 1 and ni == NULL? 275 */ 276 if (in->in_assoc) { 277 IEEE80211_ADDR_COPY(cmd->bssid_addr, ni->ni_bssid); 278 } else { 279 /* eth broadcast address */ 280 memset(cmd->bssid_addr, 0xff, sizeof(cmd->bssid_addr)); 281 } 282 283 /* 284 * Default to 2ghz if no node information is given. 285 */ 286 if (in) { 287 is2ghz = !! IEEE80211_IS_CHAN_2GHZ(in->in_ni.ni_chan); 288 } else { 289 is2ghz = 1; 290 } 291 iwm_mvm_ack_rates(sc, is2ghz, &cck_ack_rates, &ofdm_ack_rates); 292 cmd->cck_rates = htole32(cck_ack_rates); 293 cmd->ofdm_rates = htole32(ofdm_ack_rates); 294 295 cmd->cck_short_preamble 296 = htole32((ic->ic_flags & IEEE80211_F_SHPREAMBLE) 297 ? IWM_MAC_FLG_SHORT_PREAMBLE : 0); 298 cmd->short_slot 299 = htole32((ic->ic_flags & IEEE80211_F_SHSLOT) 300 ? IWM_MAC_FLG_SHORT_SLOT : 0); 301 302 /* XXX TODO: set wme parameters; also handle getting updated wme parameters */ 303 for (i = 0; i < IWM_AC_NUM+1; i++) { 304 int txf = i; 305 306 cmd->ac[txf].cw_min = htole16(0x0f); 307 cmd->ac[txf].cw_max = htole16(0x3f); 308 cmd->ac[txf].aifsn = 1; 309 cmd->ac[txf].fifos_mask = (1 << txf); 310 cmd->ac[txf].edca_txop = 0; 311 } 312 313 if (ic->ic_flags & IEEE80211_F_USEPROT) 314 cmd->protection_flags |= htole32(IWM_MAC_PROT_FLG_TGG_PROTECT); 315 316 cmd->filter_flags = htole32(IWM_MAC_FILTER_ACCEPT_GRP); 317 } 318 319 static int 320 iwm_mvm_mac_ctxt_send_cmd(struct iwm_softc *sc, struct iwm_mac_ctx_cmd *cmd) 321 { 322 int ret = iwm_mvm_send_cmd_pdu(sc, IWM_MAC_CONTEXT_CMD, IWM_CMD_SYNC, 323 sizeof(*cmd), cmd); 324 if (ret) 325 device_printf(sc->sc_dev, 326 "%s: Failed to send MAC context (action:%d): %d\n", 327 __func__, le32toh(cmd->action), ret); 328 return ret; 329 } 330 331 /* 332 * Fill the specific data for mac context of type station or p2p client 333 */ 334 static void 335 iwm_mvm_mac_ctxt_cmd_fill_sta(struct iwm_softc *sc, struct iwm_node *in, 336 struct iwm_mac_data_sta *ctxt_sta, int force_assoc_off) 337 { 338 struct ieee80211_node *ni = &in->in_ni; 339 unsigned dtim_period, dtim_count; 340 struct ieee80211com *ic = sc->sc_ic; 341 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 342 343 /* will this work? */ 344 dtim_period = vap->iv_dtim_period; 345 dtim_count = vap->iv_dtim_count; 346 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD, 347 "%s: force_assoc_off=%d\n", __func__, force_assoc_off); 348 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD, 349 "DTIM: period=%d count=%d\n", dtim_period, dtim_count); 350 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD, 351 "BEACON: tsf: %llu, ni_intval=%d\n", 352 (unsigned long long) le64toh(ni->ni_tstamp.tsf), 353 ni->ni_intval); 354 355 /* We need the dtim_period to set the MAC as associated */ 356 if (in->in_assoc && dtim_period && !force_assoc_off) { 357 uint64_t tsf; 358 uint32_t dtim_offs; 359 360 /* 361 * The DTIM count counts down, so when it is N that means N 362 * more beacon intervals happen until the DTIM TBTT. Therefore 363 * add this to the current time. If that ends up being in the 364 * future, the firmware will handle it. 365 * 366 * Also note that the system_timestamp (which we get here as 367 * "sync_device_ts") and TSF timestamp aren't at exactly the 368 * same offset in the frame -- the TSF is at the first symbol 369 * of the TSF, the system timestamp is at signal acquisition 370 * time. This means there's an offset between them of at most 371 * a few hundred microseconds (24 * 8 bits + PLCP time gives 372 * 384us in the longest case), this is currently not relevant 373 * as the firmware wakes up around 2ms before the TBTT. 374 */ 375 dtim_offs = dtim_count * ni->ni_intval; 376 /* convert TU to usecs */ 377 dtim_offs *= 1024; 378 379 /* 380 * net80211: TSF is in 802.11 order, so convert up to local 381 * ordering before we manipulate things. 382 */ 383 tsf = le64toh(ni->ni_tstamp.tsf); 384 385 ctxt_sta->dtim_tsf = htole64(tsf + dtim_offs); 386 ctxt_sta->dtim_time = htole32(tsf + dtim_offs); 387 388 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD, 389 "DTIM TBTT is 0x%llx/0x%x, offset %d\n", 390 (long long)le64toh(ctxt_sta->dtim_tsf), 391 le32toh(ctxt_sta->dtim_time), dtim_offs); 392 393 ctxt_sta->is_assoc = htole32(1); 394 } else { 395 ctxt_sta->is_assoc = htole32(0); 396 } 397 398 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD | IWM_DEBUG_BEACON, 399 "%s: ni_intval: %d, bi_reciprocal: %d, dtim_interval: %d, dtim_reciprocal: %d\n", 400 __func__, 401 ni->ni_intval, 402 iwm_mvm_reciprocal(ni->ni_intval), 403 ni->ni_intval * dtim_period, 404 iwm_mvm_reciprocal(ni->ni_intval * dtim_period)); 405 406 ctxt_sta->bi = htole32(ni->ni_intval); 407 ctxt_sta->bi_reciprocal = htole32(iwm_mvm_reciprocal(ni->ni_intval)); 408 ctxt_sta->dtim_interval = htole32(ni->ni_intval * dtim_period); 409 ctxt_sta->dtim_reciprocal = 410 htole32(iwm_mvm_reciprocal(ni->ni_intval * dtim_period)); 411 412 /* 10 = CONN_MAX_LISTEN_INTERVAL */ 413 ctxt_sta->listen_interval = htole32(10); 414 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD | IWM_DEBUG_BEACON, 415 "%s: associd=%d\n", __func__, IEEE80211_AID(ni->ni_associd)); 416 ctxt_sta->assoc_id = htole32(IEEE80211_AID(ni->ni_associd)); 417 } 418 419 static int 420 iwm_mvm_mac_ctxt_cmd_station(struct iwm_softc *sc, struct ieee80211vap *vap, 421 uint32_t action) 422 { 423 struct ieee80211_node *ni = vap->iv_bss; 424 struct iwm_node *in = (struct iwm_node *) ni; 425 struct iwm_mac_ctx_cmd cmd; 426 427 IWM_DPRINTF(sc, IWM_DEBUG_RESET, 428 "%s: called; action=%d\n", __func__, action); 429 430 memset(&cmd, 0, sizeof(cmd)); 431 432 /* Fill the common data for all mac context types */ 433 iwm_mvm_mac_ctxt_cmd_common(sc, in, &cmd, action); 434 435 /* Allow beacons to pass through as long as we are not associated,or we 436 * do not have dtim period information */ 437 if (!in->in_assoc || !vap->iv_dtim_period) 438 cmd.filter_flags |= htole32(IWM_MAC_FILTER_IN_BEACON); 439 else 440 cmd.filter_flags &= ~htole32(IWM_MAC_FILTER_IN_BEACON); 441 442 /* Fill the data specific for station mode */ 443 iwm_mvm_mac_ctxt_cmd_fill_sta(sc, in, 444 &cmd.sta, action == IWM_FW_CTXT_ACTION_ADD); 445 446 return iwm_mvm_mac_ctxt_send_cmd(sc, &cmd); 447 } 448 449 static int 450 iwm_mvm_mac_ctx_send(struct iwm_softc *sc, struct ieee80211vap *vap, 451 uint32_t action) 452 { 453 int ret; 454 455 ret = iwm_mvm_mac_ctxt_cmd_station(sc, vap, action); 456 if (ret) 457 return (ret); 458 459 return (0); 460 } 461 462 int 463 iwm_mvm_mac_ctxt_add(struct iwm_softc *sc, struct ieee80211vap *vap) 464 { 465 struct iwm_vap *iv = IWM_VAP(vap); 466 int ret; 467 468 if (iv->is_uploaded != 0) { 469 device_printf(sc->sc_dev, "%s: called; uploaded != 0\n", 470 __func__); 471 return (EIO); 472 } 473 474 ret = iwm_mvm_mac_ctx_send(sc, vap, IWM_FW_CTXT_ACTION_ADD); 475 if (ret) 476 return (ret); 477 iv->is_uploaded = 1; 478 return (0); 479 } 480 481 int 482 iwm_mvm_mac_ctxt_changed(struct iwm_softc *sc, struct ieee80211vap *vap) 483 { 484 struct iwm_vap *iv = IWM_VAP(vap); 485 int ret; 486 487 if (iv->is_uploaded == 0) { 488 device_printf(sc->sc_dev, "%s: called; uploaded = 0\n", 489 __func__); 490 return (EIO); 491 } 492 ret = iwm_mvm_mac_ctx_send(sc, vap, IWM_FW_CTXT_ACTION_MODIFY); 493 if (ret) 494 return (ret); 495 return (0); 496 } 497 498 #if 0 499 static int 500 iwm_mvm_mac_ctxt_remove(struct iwm_softc *sc, struct iwm_node *in) 501 { 502 struct iwm_mac_ctx_cmd cmd; 503 int ret; 504 505 if (!in->in_uploaded) { 506 device_printf(sc->sc_dev, 507 "attempt to remove !uploaded node %p", in); 508 return EIO; 509 } 510 511 memset(&cmd, 0, sizeof(cmd)); 512 513 cmd.id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(IWM_DEFAULT_MACID, 514 IWM_DEFAULT_COLOR)); 515 cmd.action = htole32(IWM_FW_CTXT_ACTION_REMOVE); 516 517 ret = iwm_mvm_send_cmd_pdu(sc, 518 IWM_MAC_CONTEXT_CMD, IWM_CMD_SYNC, sizeof(cmd), &cmd); 519 if (ret) { 520 device_printf(sc->sc_dev, 521 "Failed to remove MAC context: %d\n", ret); 522 return ret; 523 } 524 in->in_uploaded = 0; 525 526 return 0; 527 } 528 #endif 529