drivers/usb/gadget/rndis.c

   1 /*
   2  * RNDIS MSG parser
   3  *
   4  * Version:     $Id: rndis.c,v 1.19 2004/03/25 21:33:46 robert Exp $
   5  *
   6  * Authors:     Benedikt Spranger, Pengutronix
   7  *              Robert Schwebel, Pengutronix
   8  *
   9  *              This program is free software; you can redistribute it and/or
  10  *              modify it under the terms of the GNU General Public License
  11  *              version 2, as published by the Free Software Foundation.
  12  *
  13  *              This software was originally developed in conformance with
  14  *              Microsoft's Remote NDIS Specification License Agreement.
  15  *
  16  * 03/12/2004 Kai-Uwe Bloem <linux-development@auerswald.de>
  17  *              Fixed message length bug in init_response
  18  *
  19  * 03/25/2004 Kai-Uwe Bloem <linux-development@auerswald.de>
  20  *              Fixed rndis_rm_hdr length bug.
  21  */
  22
  23 #include <linux/config.h>
  24 #include <linux/module.h>
  25 #include <linux/kernel.h>
  26 #include <linux/errno.h>
  27 #include <linux/version.h>
  28 #include <linux/init.h>
  29 #include <linux/list.h>
  30 #include <linux/proc_fs.h>
  31 #include <linux/netdevice.h>
  32
  33 #include <asm/io.h>
  34 #include <asm/byteorder.h>
  35 #include <asm/system.h>
  36
  37 #include "rndis.h"
  38
  39
  40 /* The driver for your USB chip needs to support ep0 OUT to work with
  41  * RNDIS, plus the same three descriptors as CDC Ethernet.
  42  *
  43  * Windows hosts need an INF file like Documentation/usb/linux.inf
  44  */
  45
  46 #ifndef __LITTLE_ENDIAN
  47 #warning this code is missing all cpu_to_leXX() calls ...
  48 #endif
  49
  50 #if 0
  51 #define DEBUG if (rndis_debug) printk
  52 static int rndis_debug = 0;
  53
  54 MODULE_PARM (rndis_debug, "i");
  55 MODULE_PARM_DESC (rndis_debug, "enable debugging");
  56
  57 #else
  58 #define DEBUG(str,args...) do{}while(0)
  59 #endif
  60
  61 #define RNDIS_MAX_CONFIGS       1
  62
  63 static struct proc_dir_entry *rndis_connect_dir;
  64 static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS];
  65
  66 static rndis_params rndis_per_dev_params [RNDIS_MAX_CONFIGS];
  67
  68 /* Driver Version */
  69 static const u32 rndis_driver_version = __constant_cpu_to_le32 (1);
  70
  71 /* Function Prototypes */
  72 static int rndis_init_response (int configNr, rndis_init_msg_type *buf);
  73 static int rndis_query_response (int configNr, rndis_query_msg_type *buf);
  74 static int rndis_set_response (int configNr, rndis_set_msg_type *buf);
  75 static int rndis_reset_response (int configNr, rndis_reset_msg_type *buf);
  76 static int rndis_keepalive_response (int configNr,
  77                                      rndis_keepalive_msg_type *buf);
  78
  79 static rndis_resp_t *rndis_add_response (int configNr, u32 length);
  80
  81 /* helper functions */
  82 static u32 devFlags2currentFilter (struct net_device *dev)
  83 {
  84         u32 filter = 0;
  85
  86         if (!dev) return 0;
  87
  88         if (dev->flags & IFF_MULTICAST)
  89             filter |= NDIS_PACKET_TYPE_MULTICAST;
  90         if (dev->flags & IFF_BROADCAST)
  91             filter |= NDIS_PACKET_TYPE_BROADCAST;
  92         if (dev->flags & IFF_ALLMULTI)
  93             filter |= NDIS_PACKET_TYPE_ALL_MULTICAST;
  94         if (dev->flags & IFF_PROMISC)
  95             filter |= NDIS_PACKET_TYPE_PROMISCUOUS;
  96
  97         return filter;
  98 }
  99
 100 static void currentFilter2devFlags (u32 currentFilter, struct net_device *dev)
 101 {
 102         /* FIXME the filter is supposed to control what gets
 103          * forwarded from gadget to host; but dev->flags controls
 104          * reporting from host to gadget ...
 105          */
 106 #if 0
 107         if (!dev) return;
 108         if (currentFilter & NDIS_PACKET_TYPE_MULTICAST)
 109             dev->flags |= IFF_MULTICAST;
 110         if (currentFilter & NDIS_PACKET_TYPE_BROADCAST)
 111             dev->flags |= IFF_BROADCAST;
 112         if (currentFilter & NDIS_PACKET_TYPE_ALL_MULTICAST)
 113             dev->flags |= IFF_ALLMULTI;
 114         if (currentFilter & NDIS_PACKET_TYPE_PROMISCUOUS)
 115             dev->flags |= IFF_PROMISC;
 116 #endif
 117 }
 118
 119 /* FIXME OMITTED OIDs, that RNDIS-on-USB "must" support, include
 120  *  - power management (OID_PNP_CAPABILITIES, ...)
 121  *  - network wakeup (OID_PNP_ENABLE_WAKE_UP, ...)
 122  */
 123
 124 /* NDIS Functions */
 125 static int gen_ndis_query_resp (int configNr, u32 OID, rndis_resp_t *r)
 126 {
 127         int                     retval = -ENOTSUPP;
 128         u32                     length = 0;
 129         rndis_query_cmplt_type  *resp;
 130
 131         if (!r) return -ENOMEM;
 132         resp = (rndis_query_cmplt_type *) r->buf;
 133
 134         if (!resp) return -ENOMEM;
 135
 136         switch (OID) {
 137         /* mandatory */
 138         case OID_GEN_SUPPORTED_LIST:
 139                 DEBUG ("%s: OID_GEN_SUPPORTED_LIST\n", __FUNCTION__);
 140                 length = sizeof (oid_supported_list);
 141                 memcpy ((u8 *) resp + 24, oid_supported_list, length);
 142                 retval = 0;
 143                 break;
 144
 145         /* mandatory */
 146         case OID_GEN_HARDWARE_STATUS:
 147                 DEBUG("%s: OID_GEN_HARDWARE_STATUS\n", __FUNCTION__);
 148                 length = 4;
 149                 /* Bogus question!
 150                  * Hardware must be ready to recieve high level protocols.
 151                  * BTW:
 152                  * reddite ergo quae sunt Caesaris Caesari
 153                  * et quae sunt Dei Deo!
 154                  */
 155                 *((u32 *) resp + 6) = 0;
 156                 retval = 0;
 157                 break;
 158
 159         /* mandatory */
 160         case OID_GEN_MEDIA_SUPPORTED:
 161                 DEBUG("%s: OID_GEN_MEDIA_SUPPORTED\n", __FUNCTION__);
 162                 length = 4;
 163                 *((u32 *) resp + 6) = rndis_per_dev_params [configNr].medium;
 164                 retval = 0;
 165                 break;
 166
 167         /* mandatory */
 168         case OID_GEN_MEDIA_IN_USE:
 169                 DEBUG("%s: OID_GEN_MEDIA_IN_USE\n", __FUNCTION__);
 170                 length = 4;
 171                 /* one medium, one transport... (maybe you do it better) */
 172                 *((u32 *) resp + 6) = rndis_per_dev_params [configNr].medium;
 173                 retval = 0;
 174                 break;
 175
 176         case OID_GEN_MAXIMUM_LOOKAHEAD:
 177                 DEBUG("%s: OID_GEN_MAXIMUM_LOOKAHEAD\n", __FUNCTION__);
 178                 break;
 179
 180         /* mandatory */
 181         case OID_GEN_MAXIMUM_FRAME_SIZE:
 182                 DEBUG("%s: OID_GEN_MAXIMUM_FRAME_SIZE\n", __FUNCTION__);
 183                 if (rndis_per_dev_params [configNr].dev) {
 184                         length = 4;
 185                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr]
 186                                                 .dev->mtu;
 187                         retval = 0;
 188                 } else {
 189                         *((u32 *) resp + 6) = 0;
 190                         retval = 0;
 191                 }
 192                 break;
 193
 194         /* mandatory */
 195         case OID_GEN_LINK_SPEED:
 196                 DEBUG("%s: OID_GEN_LINK_SPEED\n", __FUNCTION__);
 197                 length = 4;
 198                 if (rndis_per_dev_params [configNr].media_state
 199                         == NDIS_MEDIA_STATE_DISCONNECTED)
 200                     *((u32 *) resp + 6) = 0;
 201                 else
 202                     *((u32 *) resp + 6) = rndis_per_dev_params [configNr].speed;
 203                 retval = 0;
 204                 break;
 205
 206         case OID_GEN_TRANSMIT_BUFFER_SPACE:
 207                 DEBUG("%s: OID_GEN_TRANSMIT_BUFFER_SPACE\n", __FUNCTION__);
 208                 length = 4;
 209                 *((u32 *) resp + 6) = 0;
 210                 retval = 0;
 211                 break;
 212
 213         case OID_GEN_RECEIVE_BUFFER_SPACE:
 214                 DEBUG("%s: OID_GEN_RECEIVE_BUFFER_SPACE\n", __FUNCTION__);
 215                 break;
 216
 217         /* mandatory */
 218         case OID_GEN_TRANSMIT_BLOCK_SIZE:
 219                 DEBUG("%s: OID_GEN_TRANSMIT_BLOCK_SIZE\n", __FUNCTION__);
 220                 if (rndis_per_dev_params [configNr].dev) {
 221                         length = 4;
 222                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr]
 223                                                 .dev->mtu;
 224                         retval = 0;
 225                 }
 226                 break;
 227
 228         /* mandatory */
 229         case OID_GEN_RECEIVE_BLOCK_SIZE:
 230                 DEBUG("%s: OID_GEN_RECEIVE_BLOCK_SIZE\n", __FUNCTION__);
 231                 if (rndis_per_dev_params [configNr].dev) {
 232                         length = 4;
 233                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr]
 234                                                 .dev->mtu;
 235                         retval = 0;
 236                 }
 237                 break;
 238
 239         /* mandatory */
 240         case OID_GEN_VENDOR_ID:
 241                 DEBUG("%s: OID_GEN_VENDOR_ID\n", __FUNCTION__);
 242                 length = 4;
 243                 *((u32 *) resp + 6) = rndis_per_dev_params [configNr].vendorID;
 244                 retval = 0;
 245                 break;
 246
 247         /* mandatory */
 248         case OID_GEN_VENDOR_DESCRIPTION:
 249                 DEBUG("%s: OID_GEN_VENDOR_DESCRIPTION\n", __FUNCTION__);
 250                 length = strlen (rndis_per_dev_params [configNr].vendorDescr);
 251                 memcpy ((u8 *) resp + 24,
 252                         rndis_per_dev_params [configNr].vendorDescr, length);
 253                 retval = 0;
 254                 break;
 255
 256         /* mandatory */
 257         case OID_GEN_CURRENT_PACKET_FILTER:
 258                 DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER\n", __FUNCTION__);
 259                 length = 4;
 260                 *((u32 *) resp + 6) = devFlags2currentFilter (
 261                                         rndis_per_dev_params [configNr].dev);
 262                 retval = 0;
 263                 break;
 264
 265         case OID_GEN_CURRENT_LOOKAHEAD:
 266                 DEBUG("%s: OID_GEN_CURRENT_LOOKAHEAD\n", __FUNCTION__);
 267                 break;
 268
 269         case OID_GEN_DRIVER_VERSION:
 270                 DEBUG("%s: OID_GEN_DRIVER_VERSION\n", __FUNCTION__);
 271                 break;
 272
 273         /* mandatory */
 274         case OID_GEN_MAXIMUM_TOTAL_SIZE:
 275                 DEBUG("%s: OID_GEN_MAXIMUM_TOTAL_SIZE\n", __FUNCTION__);
 276                 length = 4;
 277                 *((u32 *) resp + 6) = RNDIS_MAX_TOTAL_SIZE;
 278                 retval = 0;
 279                 break;
 280
 281         case OID_GEN_PROTOCOL_OPTIONS:
 282                 DEBUG("%s: OID_GEN_PROTOCOL_OPTIONS\n", __FUNCTION__);
 283                 break;
 284
 285         case OID_GEN_MAC_OPTIONS:
 286                 DEBUG("%s: OID_GEN_MAC_OPTIONS\n", __FUNCTION__);
 287                 length = 4;
 288                 *((u32 *) resp + 6) = NDIS_MAC_OPTION_RECEIVE_SERIALIZED |
 289                     NDIS_MAC_OPTION_FULL_DUPLEX;
 290                 retval = 0;
 291                 break;
 292
 293         /* mandatory */
 294         case OID_GEN_MEDIA_CONNECT_STATUS:
 295                 DEBUG("%s: OID_GEN_MEDIA_CONNECT_STATUS\n", __FUNCTION__);
 296                 length = 4;
 297                 *((u32 *) resp + 6) = rndis_per_dev_params [configNr]
 298                                                 .media_state;
 299                 retval = 0;
 300                 break;
 301
 302         case OID_GEN_MAXIMUM_SEND_PACKETS:
 303                 DEBUG("%s: OID_GEN_MAXIMUM_SEND_PACKETS\n", __FUNCTION__);
 304                 break;
 305
 306         /* mandatory */
 307         case OID_GEN_VENDOR_DRIVER_VERSION:
 308                 DEBUG("%s: OID_GEN_VENDOR_DRIVER_VERSION\n", __FUNCTION__);
 309                 length = 4;
 310                 *((u32 *) resp + 6) = rndis_driver_version;
 311                 retval = 0;
 312                 break;
 313
 314         case OID_GEN_SUPPORTED_GUIDS:
 315                 DEBUG("%s: OID_GEN_SUPPORTED_GUIDS\n", __FUNCTION__);
 316                 break;
 317
 318         case OID_GEN_NETWORK_LAYER_ADDRESSES:
 319                 DEBUG("%s: OID_GEN_NETWORK_LAYER_ADDRESSES\n", __FUNCTION__);
 320                 break;
 321
 322         case OID_GEN_TRANSPORT_HEADER_OFFSET:
 323                 DEBUG("%s: OID_GEN_TRANSPORT_HEADER_OFFSET\n", __FUNCTION__);
 324                 break;
 325
 326         case OID_GEN_MACHINE_NAME:
 327                 DEBUG("%s: OID_GEN_MACHINE_NAME\n", __FUNCTION__);
 328                 break;
 329
 330         case OID_GEN_RNDIS_CONFIG_PARAMETER:
 331                 DEBUG("%s: OID_GEN_RNDIS_CONFIG_PARAMETER\n", __FUNCTION__);
 332                 length = 4;
 333                 *((u32 *) resp + 6) = 0;
 334                 retval = 0;
 335                 break;
 336
 337         case OID_GEN_VLAN_ID:
 338                 DEBUG("%s: OID_GEN_VLAN_ID\n", __FUNCTION__);
 339                 break;
 340
 341         case OID_GEN_MEDIA_CAPABILITIES:
 342                 DEBUG("%s: OID_GEN_MEDIA_CAPABILITIES\n", __FUNCTION__);
 343                 break;
 344
 345         case OID_GEN_PHYSICAL_MEDIUM:
 346                 DEBUG("%s: OID_GEN_PHYSICAL_MEDIUM\n", __FUNCTION__);
 347                 length = 4;
 348                 *((u32 *) resp + 6) = 0;
 349                 retval = 0;
 350                 break;
 351
 352         /* mandatory */
 353         case OID_GEN_XMIT_OK:
 354                 DEBUG("%s: OID_GEN_XMIT_OK\n", __FUNCTION__);
 355                 if (rndis_per_dev_params [configNr].stats) {
 356                         length = 4;
 357                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr]
 358                                         .stats->tx_packets -
 359                             rndis_per_dev_params [configNr].stats->tx_errors -
 360                             rndis_per_dev_params [configNr].stats->tx_dropped;
 361                         retval = 0;
 362                 } else {
 363                         *((u32 *) resp + 6) = 0;
 364                         retval = 0;
 365                 }
 366                 break;
 367
 368         /* mandatory */
 369         case OID_GEN_RCV_OK:
 370                 DEBUG("%s: OID_GEN_RCV_OK\n", __FUNCTION__);
 371                 if (rndis_per_dev_params [configNr].stats) {
 372                         length = 4;
 373                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr].
 374                                         stats->rx_packets -
 375                             rndis_per_dev_params [configNr].stats->rx_errors -
 376                             rndis_per_dev_params [configNr].stats->rx_dropped;
 377                         retval = 0;
 378                 } else {
 379                         *((u32 *) resp + 6) = 0;
 380                         retval = 0;
 381                 }
 382                 break;
 383
 384         /* mandatory */
 385         case OID_GEN_XMIT_ERROR:
 386                 DEBUG("%s: OID_GEN_XMIT_ERROR\n", __FUNCTION__);
 387                 if (rndis_per_dev_params [configNr].stats) {
 388                         length = 4;
 389                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr].
 390                                         stats->tx_errors;
 391                         retval = 0;
 392                 } else {
 393                         *((u32 *) resp + 6) = 0;
 394                         retval = 0;
 395                 }
 396                 break;
 397
 398         /* mandatory */
 399         case OID_GEN_RCV_ERROR:
 400                 DEBUG("%s: OID_GEN_RCV_ERROR\n", __FUNCTION__);
 401                 if (rndis_per_dev_params [configNr].stats) {
 402                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr].
 403                                         stats->rx_errors;
 404                         retval = 0;
 405                 } else {
 406                         *((u32 *) resp + 6) = 0;
 407                         retval = 0;
 408                 }
 409                 break;
 410
 411         /* mandatory */
 412         case OID_GEN_RCV_NO_BUFFER:
 413                 DEBUG("%s: OID_GEN_RCV_NO_BUFFER\n", __FUNCTION__);
 414                 if (rndis_per_dev_params [configNr].stats) {
 415                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr].
 416                                         stats->rx_dropped;
 417                         retval = 0;
 418                 } else {
 419                         *((u32 *) resp + 6) = 0;
 420                         retval = 0;
 421                 }
 422                 break;
 423
 424         case OID_GEN_DIRECTED_BYTES_XMIT:
 425                 DEBUG("%s: OID_GEN_DIRECTED_BYTES_XMIT\n", __FUNCTION__);
 426                 /*
 427                  * Aunt Tilly's size of shoes
 428                  * minus antarctica count of penguins
 429                  * divided by weight of Alpha Centauri
 430                  */
 431                 if (rndis_per_dev_params [configNr].stats) {
 432                         length = 4;
 433                         *((u32 *) resp + 6) = (rndis_per_dev_params [configNr].
 434                                         stats->tx_packets -
 435                             rndis_per_dev_params [configNr].stats->tx_errors -
 436                             rndis_per_dev_params [configNr].stats->tx_dropped)
 437                                         *123;
 438                         retval = 0;
 439                 } else {
 440                         *((u32 *) resp + 6) = 0;
 441                         retval = 0;
 442                 }
 443                 break;
 444
 445         case OID_GEN_DIRECTED_FRAMES_XMIT:
 446                 DEBUG("%s: OID_GEN_DIRECTED_FRAMES_XMIT\n", __FUNCTION__);
 447                 /* dito */
 448                 if (rndis_per_dev_params [configNr].stats) {
 449                         length = 4;
 450                         *((u32 *) resp + 6) = (rndis_per_dev_params [configNr].
 451                                         stats->tx_packets -
 452                             rndis_per_dev_params [configNr].stats->tx_errors -
 453                             rndis_per_dev_params [configNr].stats->tx_dropped)
 454                                         /123;
 455                         retval = 0;
 456                 } else {
 457                         *((u32 *) resp + 6) = 0;
 458                         retval = 0;
 459                 }
 460                 break;
 461
 462         case OID_GEN_MULTICAST_BYTES_XMIT:
 463                 DEBUG("%s: OID_GEN_MULTICAST_BYTES_XMIT\n", __FUNCTION__);
 464                 if (rndis_per_dev_params [configNr].stats) {
 465                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr].
 466                                         stats->multicast*1234;
 467                         retval = 0;
 468                 } else {
 469                         *((u32 *) resp + 6) = 0;
 470                         retval = 0;
 471                 }
 472                 break;
 473
 474         case OID_GEN_MULTICAST_FRAMES_XMIT:
 475                 DEBUG("%s: OID_GEN_MULTICAST_FRAMES_XMIT\n", __FUNCTION__);
 476                 if (rndis_per_dev_params [configNr].stats) {
 477                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr].
 478                                         stats->multicast;
 479                         retval = 0;
 480                 } else {
 481                         *((u32 *) resp + 6) = 0;
 482                         retval = 0;
 483                 }
 484                 break;
 485
 486         case OID_GEN_BROADCAST_BYTES_XMIT:
 487                 DEBUG("%s: OID_GEN_BROADCAST_BYTES_XMIT\n", __FUNCTION__);
 488                 if (rndis_per_dev_params [configNr].stats) {
 489                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr].
 490                                         stats->tx_packets/42*255;
 491                         retval = 0;
 492                 } else {
 493                         *((u32 *) resp + 6) = 0;
 494                         retval = 0;
 495                 }
 496                 break;
 497
 498         case OID_GEN_BROADCAST_FRAMES_XMIT:
 499                 DEBUG("%s: OID_GEN_BROADCAST_FRAMES_XMIT\n", __FUNCTION__);
 500                 if (rndis_per_dev_params [configNr].stats) {
 501                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr].
 502                                         stats->tx_packets/42;
 503                         retval = 0;
 504                 } else {
 505                         *((u32 *) resp + 6) = 0;
 506                         retval = 0;
 507                 }
 508                 break;
 509
 510         case OID_GEN_DIRECTED_BYTES_RCV:
 511                 DEBUG("%s: OID_GEN_DIRECTED_BYTES_RCV\n", __FUNCTION__);
 512                 *((u32 *) resp + 6) = 0;
 513                 retval = 0;
 514                 break;
 515
 516         case OID_GEN_DIRECTED_FRAMES_RCV:
 517                 DEBUG("%s: OID_GEN_DIRECTED_FRAMES_RCV\n", __FUNCTION__);
 518                 *((u32 *) resp + 6) = 0;
 519                 retval = 0;
 520                 break;
 521
 522         case OID_GEN_MULTICAST_BYTES_RCV:
 523                 DEBUG("%s: OID_GEN_MULTICAST_BYTES_RCV\n", __FUNCTION__);
 524                 if (rndis_per_dev_params [configNr].stats) {
 525                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr].
 526                                         stats->multicast*1111;
 527                         retval = 0;
 528                 } else {
 529                         *((u32 *) resp + 6) = 0;
 530                         retval = 0;
 531                 }
 532                 break;
 533
 534         case OID_GEN_MULTICAST_FRAMES_RCV:
 535                 DEBUG("%s: OID_GEN_MULTICAST_FRAMES_RCV\n", __FUNCTION__);
 536                 if (rndis_per_dev_params [configNr].stats) {
 537                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr].
 538                                         stats->multicast;
 539                         retval = 0;
 540                 } else {
 541                         *((u32 *) resp + 6) = 0;
 542                         retval = 0;
 543                 }
 544                 break;
 545
 546         case OID_GEN_BROADCAST_BYTES_RCV:
 547                 DEBUG("%s: OID_GEN_BROADCAST_BYTES_RCV\n", __FUNCTION__);
 548                 if (rndis_per_dev_params [configNr].stats) {
 549                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr].
 550                                         stats->rx_packets/42*255;
 551                         retval = 0;
 552                 } else {
 553                         *((u32 *) resp + 6) = 0;
 554                         retval = 0;
 555                 }
 556                 break;
 557
 558         case OID_GEN_BROADCAST_FRAMES_RCV:
 559                 DEBUG("%s: OID_GEN_BROADCAST_FRAMES_RCV\n", __FUNCTION__);
 560                 if (rndis_per_dev_params [configNr].stats) {
 561                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr].
 562                                         stats->rx_packets/42;
 563                         retval = 0;
 564                 } else {
 565                         *((u32 *) resp + 6) = 0;
 566                         retval = 0;
 567                 }
 568                 break;
 569
 570         case OID_GEN_RCV_CRC_ERROR:
 571                 DEBUG("%s: OID_GEN_RCV_CRC_ERROR\n", __FUNCTION__);
 572                 if (rndis_per_dev_params [configNr].stats) {
 573                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr].
 574                                         stats->rx_crc_errors;
 575                         retval = 0;
 576                 } else {
 577                         *((u32 *) resp + 6) = 0;
 578                         retval = 0;
 579                 }
 580                 break;
 581
 582         case OID_GEN_TRANSMIT_QUEUE_LENGTH:
 583                 DEBUG("%s: OID_GEN_TRANSMIT_QUEUE_LENGTH\n", __FUNCTION__);
 584                 *((u32 *) resp + 6) = 0;
 585                 retval = 0;
 586                 break;
 587
 588         case OID_GEN_GET_TIME_CAPS:
 589                 DEBUG("%s: OID_GEN_GET_TIME_CAPS\n", __FUNCTION__);
 590                 break;
 591
 592         case OID_GEN_GET_NETCARD_TIME:
 593                 DEBUG("%s: OID_GEN_GET_NETCARD_TIME\n", __FUNCTION__);
 594                 break;
 595
 596         case OID_GEN_NETCARD_LOAD:
 597                 DEBUG("%s: OID_GEN_NETCARD_LOAD\n", __FUNCTION__);
 598                 break;
 599
 600         case OID_GEN_DEVICE_PROFILE:
 601                 DEBUG("%s: OID_GEN_DEVICE_PROFILE\n", __FUNCTION__);
 602                 break;
 603
 604         case OID_GEN_INIT_TIME_MS:
 605                 DEBUG("%s: OID_GEN_INIT_TIME_MS\n", __FUNCTION__);
 606                 break;
 607
 608         case OID_GEN_RESET_COUNTS:
 609                 DEBUG("%s: OID_GEN_RESET_COUNTS\n", __FUNCTION__);
 610                 break;
 611
 612         case OID_GEN_MEDIA_SENSE_COUNTS:
 613                 DEBUG("%s: OID_GEN_MEDIA_SENSE_COUNTS\n", __FUNCTION__);
 614                 break;
 615
 616         case OID_GEN_FRIENDLY_NAME:
 617                 DEBUG("%s: OID_GEN_FRIENDLY_NAME\n", __FUNCTION__);
 618                 break;
 619
 620         case OID_GEN_MINIPORT_INFO:
 621                 DEBUG("%s: OID_GEN_MINIPORT_INFO\n", __FUNCTION__);
 622                 break;
 623
 624         case OID_GEN_RESET_VERIFY_PARAMETERS:
 625                 DEBUG("%s: OID_GEN_RESET_VERIFY_PARAMETERS\n", __FUNCTION__);
 626                 break;
 627
 628         /* mandatory */
 629         case OID_802_3_PERMANENT_ADDRESS:
 630                 DEBUG("%s: OID_802_3_PERMANENT_ADDRESS\n", __FUNCTION__);
 631                 if (rndis_per_dev_params [configNr].dev) {
 632                         length = ETH_ALEN;
 633                         memcpy ((u8 *) resp + 24,
 634                                 rndis_per_dev_params [configNr].host_mac,
 635                                 length);
 636                         retval = 0;
 637                 } else {
 638                         *((u32 *) resp + 6) = 0;
 639                         retval = 0;
 640                 }
 641                 break;
 642
 643         /* mandatory */
 644         case OID_802_3_CURRENT_ADDRESS:
 645                 DEBUG("%s: OID_802_3_CURRENT_ADDRESS\n", __FUNCTION__);
 646                 if (rndis_per_dev_params [configNr].dev) {
 647                         length = ETH_ALEN;
 648                         memcpy ((u8 *) resp + 24,
 649                                 rndis_per_dev_params [configNr].host_mac,
 650                                 length);
 651                         retval = 0;
 652                 }
 653                 break;
 654
 655         /* mandatory */
 656         case OID_802_3_MULTICAST_LIST:
 657                 DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__);
 658                 length = 4;
 659                 /* Multicast base address only */
 660                 *((u32 *) resp + 6) = 0xE0000000;
 661                 retval = 0;
 662                 break;
 663
 664         /* mandatory */
 665         case OID_802_3_MAXIMUM_LIST_SIZE:
 666                 DEBUG("%s: OID_802_3_MAXIMUM_LIST_SIZE\n", __FUNCTION__);
 667                  length = 4;
 668                 /* Multicast base address only */
 669                 *((u32 *) resp + 6) = 1;
 670                 retval = 0;
 671                 break;
 672
 673         case OID_802_3_MAC_OPTIONS:
 674                 DEBUG("%s: OID_802_3_MAC_OPTIONS\n", __FUNCTION__);
 675                 break;
 676
 677         /* mandatory */
 678         case OID_802_3_RCV_ERROR_ALIGNMENT:
 679                 DEBUG("%s: OID_802_3_RCV_ERROR_ALIGNMENT\n", __FUNCTION__);
 680                 if (rndis_per_dev_params [configNr].stats)
 681                 {
 682                         length = 4;
 683                         *((u32 *) resp + 6) = rndis_per_dev_params [configNr]
 684                                         .stats->rx_frame_errors;
 685                         retval = 0;
 686                 }
 687                 break;
 688
 689         /* mandatory */
 690         case OID_802_3_XMIT_ONE_COLLISION:
 691                 DEBUG("%s: OID_802_3_XMIT_ONE_COLLISION\n", __FUNCTION__);
 692                 length = 4;
 693                 *((u32 *) resp + 6) = 0;
 694                 retval = 0;
 695                 break;
 696
 697         /* mandatory */
 698         case OID_802_3_XMIT_MORE_COLLISIONS:
 699                 DEBUG("%s: OID_802_3_XMIT_MORE_COLLISIONS\n", __FUNCTION__);
 700                 length = 4;
 701                 *((u32 *) resp + 6) = 0;
 702                 retval = 0;
 703                 break;
 704
 705         case OID_802_3_XMIT_DEFERRED:
 706                 DEBUG("%s: OID_802_3_XMIT_DEFERRED\n", __FUNCTION__);
 707                 /* TODO */
 708                 break;
 709
 710         case OID_802_3_XMIT_MAX_COLLISIONS:
 711                 DEBUG("%s: OID_802_3_XMIT_MAX_COLLISIONS\n", __FUNCTION__);
 712                 /* TODO */
 713                 break;
 714
 715         case OID_802_3_RCV_OVERRUN:
 716                 DEBUG("%s: OID_802_3_RCV_OVERRUN\n", __FUNCTION__);
 717                 /* TODO */
 718                 break;
 719
 720         case OID_802_3_XMIT_UNDERRUN:
 721                 DEBUG("%s: OID_802_3_XMIT_UNDERRUN\n", __FUNCTION__);
 722                 /* TODO */
 723                 break;
 724
 725         case OID_802_3_XMIT_HEARTBEAT_FAILURE:
 726                 DEBUG("%s: OID_802_3_XMIT_HEARTBEAT_FAILURE\n", __FUNCTION__);
 727                 /* TODO */
 728                 break;
 729
 730         case OID_802_3_XMIT_TIMES_CRS_LOST:
 731                 DEBUG("%s: OID_802_3_XMIT_TIMES_CRS_LOST\n", __FUNCTION__);
 732                 /* TODO */
 733                 break;
 734
 735         case OID_802_3_XMIT_LATE_COLLISIONS:
 736                 DEBUG("%s: OID_802_3_XMIT_LATE_COLLISIONS\n", __FUNCTION__);
 737                 /* TODO */
 738                 break;
 739
 740         default: printk (KERN_ERR "%s: unknown OID 0x%08X\n",
 741                          __FUNCTION__, OID);
 742         }
 743
 744         resp->InformationBufferOffset = 16;
 745         resp->InformationBufferLength = length;
 746         resp->MessageLength = 24 + length;
 747         r->length = 24 + length;
 748         return retval;
 749 }
 750
 751 static int gen_ndis_set_resp (u8 configNr, u32 OID, u8 *buf, u32 buf_len,
 752                               rndis_resp_t *r)
 753 {
 754         rndis_set_cmplt_type            *resp;
 755         int                             i, retval = -ENOTSUPP;
 756         struct rndis_config_parameter   *param;
 757         struct rndis_params             *params;
 758         u8 *cp;
 759
 760         if (!r)
 761                 return -ENOMEM;
 762         resp = (rndis_set_cmplt_type *) r->buf;
 763         if (!resp)
 764                 return -ENOMEM;
 765
 766         cp = (u8 *)resp;
 767
 768         switch (OID) {
 769         case OID_GEN_CURRENT_PACKET_FILTER:
 770                 DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER\n", __FUNCTION__);
 771                 params = &rndis_per_dev_params [configNr];
 772                 currentFilter2devFlags(cp[28], params->dev);
 773                 retval = 0;
 774
 775                 /* this call has a significant side effect:  it's
 776                  * what makes the packet flow start and stop, like
 777                  * activating the CDC Ethernet altsetting.
 778                  */
 779                 if (cp[28]) {
 780                         params->state = RNDIS_DATA_INITIALIZED;
 781                         netif_carrier_on(params->dev);
 782                         if (netif_running(params->dev))
 783                                 netif_wake_queue (params->dev);
 784                 } else {
 785                         params->state = RNDIS_INITIALIZED;
 786                         netif_carrier_off (params->dev);
 787                         netif_stop_queue (params->dev);
 788                 }
 789                 break;
 790
 791         case OID_802_3_MULTICAST_LIST:
 792                 /* I think we can ignore this */
 793                 DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__);
 794                 retval = 0;
 795                 break;
 796
 797         case OID_GEN_RNDIS_CONFIG_PARAMETER:
 798                 DEBUG("%s: OID_GEN_RNDIS_CONFIG_PARAMETER\n", __FUNCTION__);
 799                 param = (struct rndis_config_parameter *) buf;
 800                 if (param) {
 801                         for (i = 0; i < param->ParameterNameLength; i++) {
 802                                 DEBUG ("%c",
 803                                        *(buf + param->ParameterNameOffset + i));
 804                         }
 805                         DEBUG ("\n");
 806                 }
 807
 808                 retval = 0;
 809                 break;
 810
 811         default: printk (KERN_ERR "%s: unknown OID 0x%08X\n",
 812                          __FUNCTION__, OID);
 813         }
 814
 815         return retval;
 816 }
 817
 818 /*
 819  * Response Functions
 820  */
 821
 822 static int rndis_init_response (int configNr, rndis_init_msg_type *buf)
 823 {
 824         rndis_init_cmplt_type   *resp;
 825         rndis_resp_t            *r;
 826
 827         if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP;
 828
 829         r = rndis_add_response (configNr, sizeof (rndis_init_cmplt_type));
 830
 831         if (!r) return -ENOMEM;
 832
 833         resp = (rndis_init_cmplt_type *) r->buf;
 834
 835         if (!resp) return -ENOMEM;
 836
 837         resp->MessageType = REMOTE_NDIS_INITIALIZE_CMPLT;
 838         resp->MessageLength = 52;
 839         resp->RequestID = buf->RequestID;
 840         resp->Status = RNDIS_STATUS_SUCCESS;
 841         resp->MajorVersion = RNDIS_MAJOR_VERSION;
 842         resp->MinorVersion = RNDIS_MINOR_VERSION;
 843         resp->DeviceFlags = RNDIS_DF_CONNECTIONLESS;
 844         resp->Medium = RNDIS_MEDIUM_802_3;
 845         resp->MaxPacketsPerTransfer = 1;
 846         resp->MaxTransferSize = rndis_per_dev_params [configNr].dev->mtu
 847                 + sizeof (struct ethhdr)
 848                 + sizeof (struct rndis_packet_msg_type)
 849                 + 22;
 850         resp->PacketAlignmentFactor = 0;
 851         resp->AFListOffset = 0;
 852         resp->AFListSize = 0;
 853
 854         if (rndis_per_dev_params [configNr].ack)
 855             rndis_per_dev_params [configNr].ack (
 856                         rndis_per_dev_params [configNr].dev);
 857
 858         return 0;
 859 }
 860
 861 static int rndis_query_response (int configNr, rndis_query_msg_type *buf)
 862 {
 863         rndis_query_cmplt_type *resp;
 864         rndis_resp_t            *r;
 865
 866         DEBUG("%s: OID = %08X\n", __FUNCTION__, buf->OID);
 867         if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP;
 868
 869         /*
 870          * we need more memory:
 871          * oid_supported_list is the largest answer
 872          */
 873         r = rndis_add_response (configNr, sizeof (oid_supported_list));
 874
 875         if (!r) return -ENOMEM;
 876         resp = (rndis_query_cmplt_type *) r->buf;
 877
 878         if (!resp) return -ENOMEM;
 879
 880         resp->MessageType = REMOTE_NDIS_QUERY_CMPLT;
 881         resp->MessageLength = 24;
 882         resp->RequestID = buf->RequestID;
 883
 884         if (gen_ndis_query_resp (configNr, buf->OID, r)) {
 885                 /* OID not supported */
 886                 resp->Status = RNDIS_STATUS_NOT_SUPPORTED;
 887                 resp->InformationBufferLength = 0;
 888                 resp->InformationBufferOffset = 0;
 889         } else
 890                 resp->Status = RNDIS_STATUS_SUCCESS;
 891
 892         if (rndis_per_dev_params [configNr].ack)
 893             rndis_per_dev_params [configNr].ack (
 894                         rndis_per_dev_params [configNr].dev);
 895         return 0;
 896 }
 897
 898 static int rndis_set_response (int configNr, rndis_set_msg_type *buf)
 899 {
 900         rndis_set_cmplt_type    *resp;
 901         rndis_resp_t            *r;
 902         int                     i;
 903
 904         r = rndis_add_response (configNr, sizeof (rndis_set_cmplt_type));
 905
 906         if (!r) return -ENOMEM;
 907         resp = (rndis_set_cmplt_type *) r->buf;
 908         if (!resp) return -ENOMEM;
 909
 910         DEBUG("%s: Length: %d\n", __FUNCTION__, buf->InformationBufferLength);
 911         DEBUG("%s: Offset: %d\n", __FUNCTION__, buf->InformationBufferOffset);
 912         DEBUG("%s: InfoBuffer: ", __FUNCTION__);
 913
 914         for (i = 0; i < buf->InformationBufferLength; i++) {
 915                 DEBUG ("%02x ", *(((u8 *) buf) + i + 12 +
 916                        buf->InformationBufferOffset));
 917         }
 918
 919         DEBUG ("\n");
 920
 921         resp->MessageType = REMOTE_NDIS_SET_CMPLT;
 922         resp->MessageLength = 16;
 923         resp->RequestID = buf->RequestID;
 924         if (gen_ndis_set_resp (configNr, buf->OID,
 925                                ((u8 *) buf) + 28,
 926                                buf->InformationBufferLength, r))
 927             resp->Status = RNDIS_STATUS_NOT_SUPPORTED;
 928         else resp->Status = RNDIS_STATUS_SUCCESS;
 929
 930         if (rndis_per_dev_params [configNr].ack)
 931             rndis_per_dev_params [configNr].ack (rndis_per_dev_params [configNr].dev);
 932
 933         return 0;
 934 }
 935
 936 static int rndis_reset_response (int configNr, rndis_reset_msg_type *buf)
 937 {
 938         rndis_reset_cmplt_type  *resp;
 939         rndis_resp_t            *r;
 940
 941         r = rndis_add_response (configNr, sizeof (rndis_reset_cmplt_type));
 942
 943         if (!r) return -ENOMEM;
 944         resp = (rndis_reset_cmplt_type *) r->buf;
 945         if (!resp) return -ENOMEM;
 946
 947         resp->MessageType = REMOTE_NDIS_RESET_CMPLT;
 948         resp->MessageLength = 16;
 949         resp->Status = RNDIS_STATUS_SUCCESS;
 950         resp->AddressingReset = 1; /* resent information */
 951
 952         if (rndis_per_dev_params [configNr].ack)
 953             rndis_per_dev_params [configNr].ack (
 954                         rndis_per_dev_params [configNr].dev);
 955
 956         return 0;
 957 }
 958
 959 static int rndis_keepalive_response (int configNr,
 960                                      rndis_keepalive_msg_type *buf)
 961 {
 962         rndis_keepalive_cmplt_type      *resp;
 963         rndis_resp_t                    *r;
 964
 965         /* host "should" check only in RNDIS_DATA_INITIALIZED state */
 966
 967         r = rndis_add_response (configNr, sizeof (rndis_keepalive_cmplt_type));
 968         resp = (rndis_keepalive_cmplt_type *) r->buf;
 969         if (!resp) return -ENOMEM;
 970
 971         resp->MessageType = REMOTE_NDIS_KEEPALIVE_CMPLT;
 972         resp->MessageLength = 16;
 973         resp->RequestID = buf->RequestID;
 974         resp->Status = RNDIS_STATUS_SUCCESS;
 975
 976         if (rndis_per_dev_params [configNr].ack)
 977             rndis_per_dev_params [configNr].ack (
 978                         rndis_per_dev_params [configNr].dev);
 979
 980         return 0;
 981 }
 982
 983
 984 /*
 985  * Device to Host Comunication
 986  */
 987 static int rndis_indicate_status_msg (int configNr, u32 status)
 988 {
 989         rndis_indicate_status_msg_type  *resp;
 990         rndis_resp_t                    *r;
 991
 992         if (rndis_per_dev_params [configNr].state == RNDIS_UNINITIALIZED)
 993             return -ENOTSUPP;
 994
 995         r = rndis_add_response (configNr,
 996                                 sizeof (rndis_indicate_status_msg_type));
 997         if (!r) return -ENOMEM;
 998
 999         resp = (rndis_indicate_status_msg_type *) r->buf;
1000         if (!resp) return -ENOMEM;
1001
1002         resp->MessageType = REMOTE_NDIS_INDICATE_STATUS_MSG;
1003         resp->MessageLength = 20;
1004         resp->Status = status;
1005         resp->StatusBufferLength = 0;
1006         resp->StatusBufferOffset = 0;
1007
1008         if (rndis_per_dev_params [configNr].ack)
1009             rndis_per_dev_params [configNr].ack (
1010                         rndis_per_dev_params [configNr].dev);
1011         return 0;
1012 }
1013
1014 int rndis_signal_connect (int configNr)
1015 {
1016         rndis_per_dev_params [configNr].media_state
1017                         = NDIS_MEDIA_STATE_CONNECTED;
1018         return rndis_indicate_status_msg (configNr,
1019                                           RNDIS_STATUS_MEDIA_CONNECT);
1020 }
1021
1022 int rndis_signal_disconnect (int configNr)
1023 {
1024         rndis_per_dev_params [configNr].media_state
1025                         = NDIS_MEDIA_STATE_DISCONNECTED;
1026         return rndis_indicate_status_msg (configNr,
1027                                           RNDIS_STATUS_MEDIA_DISCONNECT);
1028 }
1029
1030 void rndis_set_host_mac (int configNr, const u8 *addr)
1031 {
1032         rndis_per_dev_params [configNr].host_mac = addr;
1033 }
1034
1035 /*
1036  * Message Parser
1037  */
1038 int rndis_msg_parser (u8 configNr, u8 *buf)
1039 {
1040         u32 MsgType, MsgLength, *tmp;
1041         struct rndis_params             *params;
1042
1043         if (!buf)
1044                 return -ENOMEM;
1045
1046         tmp = (u32 *) buf;
1047         MsgType = *tmp;
1048         MsgLength = *(tmp + 1);
1049
1050         if (configNr >= RNDIS_MAX_CONFIGS)
1051                 return -ENOTSUPP;
1052         params = &rndis_per_dev_params [configNr];
1053
1054         /* For USB: responses may take up to 10 seconds */
1055         switch (MsgType)
1056         {
1057         case REMOTE_NDIS_INITIALIZE_MSG:
1058                 DEBUG(KERN_INFO "%s: REMOTE_NDIS_INITIALIZE_MSG\n",
1059                         __FUNCTION__ );
1060                 params->state = RNDIS_INITIALIZED;
1061                 return  rndis_init_response (configNr,
1062                                              (rndis_init_msg_type *) buf);
1063
1064         case REMOTE_NDIS_HALT_MSG:
1065                 DEBUG(KERN_INFO "%s: REMOTE_NDIS_HALT_MSG\n",
1066                         __FUNCTION__ );
1067                 params->state = RNDIS_UNINITIALIZED;
1068                 if (params->dev) {
1069                         netif_carrier_off (params->dev);
1070                         netif_stop_queue (params->dev);
1071                 }
1072                 return 0;
1073
1074         case REMOTE_NDIS_QUERY_MSG:
1075                 DEBUG(KERN_INFO "%s: REMOTE_NDIS_QUERY_MSG\n",
1076                         __FUNCTION__ );
1077                 return rndis_query_response (configNr,
1078                                              (rndis_query_msg_type *) buf);
1079
1080         case REMOTE_NDIS_SET_MSG:
1081                 DEBUG(KERN_INFO "%s: REMOTE_NDIS_SET_MSG\n",
1082                         __FUNCTION__ );
1083                 return rndis_set_response (configNr,
1084                                            (rndis_set_msg_type *) buf);
1085
1086         case REMOTE_NDIS_RESET_MSG:
1087                 DEBUG(KERN_INFO "%s: REMOTE_NDIS_RESET_MSG\n",
1088                         __FUNCTION__ );
1089                 return rndis_reset_response (configNr,
1090                                              (rndis_reset_msg_type *) buf);
1091
1092         case REMOTE_NDIS_KEEPALIVE_MSG:
1093                 /* For USB: host does this every 5 seconds */
1094                 DEBUG(KERN_INFO "%s: REMOTE_NDIS_KEEPALIVE_MSG\n",
1095                         __FUNCTION__ );
1096                 return rndis_keepalive_response (configNr,
1097                                                  (rndis_keepalive_msg_type *)
1098                                                  buf);
1099
1100         default:
1101                 printk (KERN_ERR "%s: unknown RNDIS Message Type 0x%08X\n",
1102                         __FUNCTION__ , MsgType);
1103                 break;
1104         }
1105
1106         return -ENOTSUPP;
1107 }
1108
1109 int rndis_register (int (* rndis_control_ack) (struct net_device *))
1110 {
1111         u8 i;
1112         DEBUG("%s: ", __FUNCTION__ );
1113
1114         for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1115                 if (!rndis_per_dev_params [i].used) {
1116                         rndis_per_dev_params [i].used = 1;
1117                         rndis_per_dev_params [i].ack = rndis_control_ack;
1118                         DEBUG("configNr = %d\n", i);
1119                         return i;
1120                 }
1121         }
1122         DEBUG("failed\n");
1123
1124         return -1;
1125 }
1126
1127 void rndis_deregister (int configNr)
1128 {
1129         DEBUG("%s: \n", __FUNCTION__ );
1130
1131         if (configNr >= RNDIS_MAX_CONFIGS) return;
1132         rndis_per_dev_params [configNr].used = 0;
1133
1134         return;
1135 }
1136
1137 int rndis_set_param_dev (u8 configNr, struct net_device *dev,
1138                          struct net_device_stats *stats)
1139 {
1140         DEBUG("%s:\n", __FUNCTION__ );
1141         if (!dev || !stats) return -1;
1142         if (configNr >= RNDIS_MAX_CONFIGS) return -1;
1143
1144         rndis_per_dev_params [configNr].dev = dev;
1145         rndis_per_dev_params [configNr].stats = stats;
1146
1147         return 0;
1148 }
1149
1150 int rndis_set_param_vendor (u8 configNr, u32 vendorID, const char *vendorDescr)
1151 {
1152         DEBUG("%s:\n", __FUNCTION__ );
1153         if (!vendorDescr) return -1;
1154         if (configNr >= RNDIS_MAX_CONFIGS) return -1;
1155
1156         rndis_per_dev_params [configNr].vendorID = vendorID;
1157         rndis_per_dev_params [configNr].vendorDescr = vendorDescr;
1158
1159         return 0;
1160 }
1161
1162 int rndis_set_param_medium (u8 configNr, u32 medium, u32 speed)
1163 {
1164         DEBUG("%s:\n", __FUNCTION__ );
1165         if (configNr >= RNDIS_MAX_CONFIGS) return -1;
1166
1167         rndis_per_dev_params [configNr].medium = medium;
1168         rndis_per_dev_params [configNr].speed = speed;
1169
1170         return 0;
1171 }
1172
1173 void rndis_add_hdr (struct sk_buff *skb)
1174 {
1175         if (!skb) return;
1176         skb_push (skb, sizeof (struct rndis_packet_msg_type));
1177         memset (skb->data, 0, sizeof (struct rndis_packet_msg_type));
1178         *((u32 *) skb->data) = 1;
1179         *((u32 *) skb->data + 1) = skb->len;
1180         *((u32 *) skb->data + 2) = 36;
1181         *((u32 *) skb->data + 3) = skb->len - 44;
1182
1183         return;
1184 }
1185
1186 void rndis_free_response (int configNr, u8 *buf)
1187 {
1188         rndis_resp_t            *r;
1189         struct list_head        *act, *tmp;
1190
1191         list_for_each_safe (act, tmp,
1192                             &(rndis_per_dev_params [configNr].resp_queue))
1193         {
1194                 r = list_entry (act, rndis_resp_t, list);
1195                 if (r && r->buf == buf) {
1196                         list_del (&r->list);
1197                         kfree (r);
1198                 }
1199         }
1200 }
1201
1202 u8 *rndis_get_next_response (int configNr, u32 *length)
1203 {
1204         rndis_resp_t            *r;
1205         struct list_head        *act, *tmp;
1206
1207         if (!length) return NULL;
1208
1209         list_for_each_safe (act, tmp,
1210                             &(rndis_per_dev_params [configNr].resp_queue))
1211         {
1212                 r = list_entry (act, rndis_resp_t, list);
1213                 if (!r->send) {
1214                         r->send = 1;
1215                         *length = r->length;
1216                         return r->buf;
1217                 }
1218         }
1219
1220         return NULL;
1221 }
1222
1223 static rndis_resp_t *rndis_add_response (int configNr, u32 length)
1224 {
1225         rndis_resp_t    *r;
1226
1227         r = kmalloc (sizeof (rndis_resp_t) + length, GFP_ATOMIC);
1228         if (!r) return NULL;
1229
1230         r->buf = (u8 *) (r + 1);
1231         r->length = length;
1232         r->send = 0;
1233
1234         list_add_tail (&r->list,
1235                        &(rndis_per_dev_params [configNr].resp_queue));
1236         return r;
1237 }
1238
1239 int rndis_rm_hdr (u8 *buf, u32 *length)
1240 {
1241         u32 i, messageLen, dataOffset;
1242
1243         if (!buf || !length) return -1;
1244         if (*((u32 *) buf) != 1) return -1;
1245
1246         messageLen = *((u32 *) buf + 1);
1247
1248         dataOffset = *((u32 *) buf + 2) + 8;
1249         if (messageLen < dataOffset || messageLen > *length) return -1;
1250
1251         for (i = dataOffset; i < messageLen; i++)
1252                 buf [i - dataOffset] = buf [i];
1253
1254         *length = messageLen - dataOffset;
1255
1256         return 0;
1257 }
1258
1259 int rndis_proc_read (char *page, char **start, off_t off, int count, int *eof,
1260                      void *data)
1261 {
1262         char *out = page;
1263         int len;
1264         rndis_params *param = (rndis_params *) data;
1265
1266         out += snprintf (out, count,
1267                          "Config Nr. %d\n"
1268                          "used      : %s\n"
1269                          "state     : %s\n"
1270                          "medium    : 0x%08X\n"
1271                          "speed     : %d\n"
1272                          "cable     : %s\n"
1273                          "vendor ID : 0x%08X\n"
1274                          "vendor    : %s\n",
1275                          param->confignr, (param->used) ? "y" : "n",
1276                          ({ char *s = "?";
1277                          switch (param->state) {
1278                          case RNDIS_UNINITIALIZED:
1279                                 s = "RNDIS_UNINITIALIZED"; break;
1280                          case RNDIS_INITIALIZED:
1281                                 s = "RNDIS_INITIALIZED"; break;
1282                          case RNDIS_DATA_INITIALIZED:
1283                                 s = "RNDIS_DATA_INITIALIZED"; break;
1284                         }; s; }),
1285                          param->medium,
1286                          (param->media_state) ? 0 : param->speed*100,
1287                          (param->media_state) ? "disconnected" : "connected",
1288                          param->vendorID, param->vendorDescr);
1289
1290         len = out - page;
1291         len -= off;
1292
1293         if (len < count) {
1294                 *eof = 1;
1295                 if (len <= 0)
1296                         return 0;
1297         } else
1298                 len = count;
1299
1300         *start = page + off;
1301         return len;
1302 }
1303
1304 int rndis_proc_write (struct file *file, const char *buffer,
1305                       unsigned long count, void *data)
1306 {
1307         u32 speed = 0;
1308         int i, fl_speed = 0;
1309
1310         for (i = 0; i < count; i++) {
1311                 switch (*buffer) {
1312                 case '0':
1313                 case '1':
1314                 case '2':
1315                 case '3':
1316                 case '4':
1317                 case '5':
1318                 case '6':
1319                 case '7':
1320                 case '8':
1321                 case '9':
1322                         fl_speed = 1;
1323                         speed = speed*10 + *buffer - '0';
1324                         break;
1325                 case 'C':
1326                 case 'c':
1327                         rndis_signal_connect (((rndis_params *) data)
1328                                 ->confignr);
1329                         break;
1330                 case 'D':
1331                 case 'd':
1332                         rndis_signal_disconnect (((rndis_params *) data)
1333                                 ->confignr);
1334                         break;
1335                 default:
1336                         if (fl_speed) ((rndis_params *) data)->speed = speed;
1337                         else DEBUG ("%c is not valid\n", *buffer);
1338                         break;
1339                 }
1340
1341                 buffer++;
1342         }
1343
1344         return count;
1345 }
1346
1347 int __init rndis_init (void)
1348 {
1349         u8 i;
1350         char name [4];
1351
1352         /* FIXME this should probably be /proc/driver/rndis,
1353          * and only if debugging is enabled
1354          */
1355
1356         if (!(rndis_connect_dir =  proc_mkdir ("rndis", NULL))) {
1357                 printk (KERN_ERR "%s: couldn't create /proc/rndis entry",
1358                         __FUNCTION__);
1359                 return -EIO;
1360         }
1361
1362         for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1363                 sprintf (name, "%03d", i);
1364                 if (!(rndis_connect_state [i]
1365                                 = create_proc_entry (name, 0660,
1366                                                 rndis_connect_dir)))
1367                 {
1368                         DEBUG ("%s :remove entries", __FUNCTION__);
1369                         for (i--; i > 0; i--) {
1370                                 sprintf (name, "%03d", i);
1371                                 remove_proc_entry (name, rndis_connect_dir);
1372                         }
1373                         DEBUG ("\n");
1374
1375                         remove_proc_entry ("000", rndis_connect_dir);
1376                         remove_proc_entry ("rndis", NULL);
1377                         return -EIO;
1378                 }
1379                 rndis_connect_state [i]->nlink = 1;
1380                 rndis_connect_state [i]->write_proc = rndis_proc_write;
1381                 rndis_connect_state [i]->read_proc = rndis_proc_read;
1382                 rndis_connect_state [i]->data = (void *)
1383                                 (rndis_per_dev_params + i);
1384                 rndis_per_dev_params [i].confignr = i;
1385                 rndis_per_dev_params [i].used = 0;
1386                 rndis_per_dev_params [i].state = RNDIS_UNINITIALIZED;
1387                 rndis_per_dev_params [i].media_state
1388                                 = NDIS_MEDIA_STATE_DISCONNECTED;
1389                 INIT_LIST_HEAD (&(rndis_per_dev_params [i].resp_queue));
1390         }
1391
1392         return 0;
1393 }
1394
1395 void rndis_exit (void)
1396 {
1397         u8 i;
1398         char name [4];
1399
1400         for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1401                 sprintf (name, "%03d", i);
1402                 remove_proc_entry (name, rndis_connect_dir);
1403         }
1404         remove_proc_entry ("rndis", NULL);
1405         return;
1406 }
1407