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