Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | * Copyright (C) 2004 by David Brownell |
| 23 | * updates to merge with Linux 2.6, better match RNDIS spec |
| 24 | */ |
| 25 | |
| 26 | #include <linux/config.h> |
| 27 | #include <linux/module.h> |
| 28 | #include <linux/moduleparam.h> |
| 29 | #include <linux/kernel.h> |
| 30 | #include <linux/errno.h> |
| 31 | #include <linux/version.h> |
| 32 | #include <linux/init.h> |
| 33 | #include <linux/list.h> |
| 34 | #include <linux/proc_fs.h> |
| 35 | #include <linux/netdevice.h> |
| 36 | |
| 37 | #include <asm/io.h> |
| 38 | #include <asm/byteorder.h> |
| 39 | #include <asm/system.h> |
| 40 | |
| 41 | |
| 42 | #undef RNDIS_PM |
| 43 | #undef VERBOSE |
| 44 | |
| 45 | #include "rndis.h" |
| 46 | |
| 47 | |
| 48 | /* The driver for your USB chip needs to support ep0 OUT to work with |
| 49 | * RNDIS, plus all three CDC Ethernet endpoints (interrupt not optional). |
| 50 | * |
| 51 | * Windows hosts need an INF file like Documentation/usb/linux.inf |
| 52 | * and will be happier if you provide the host_addr module parameter. |
| 53 | */ |
| 54 | |
| 55 | #if 0 |
| 56 | #define DEBUG(str,args...) do { \ |
| 57 | if (rndis_debug) \ |
| 58 | printk(KERN_DEBUG str , ## args ); \ |
| 59 | } while (0) |
| 60 | static int rndis_debug = 0; |
| 61 | |
| 62 | module_param (rndis_debug, bool, 0); |
| 63 | MODULE_PARM_DESC (rndis_debug, "enable debugging"); |
| 64 | |
| 65 | #else |
| 66 | |
| 67 | #define rndis_debug 0 |
| 68 | #define DEBUG(str,args...) do{}while(0) |
| 69 | #endif |
| 70 | |
| 71 | #define RNDIS_MAX_CONFIGS 1 |
| 72 | |
| 73 | |
| 74 | static rndis_params rndis_per_dev_params [RNDIS_MAX_CONFIGS]; |
| 75 | |
| 76 | /* Driver Version */ |
| 77 | static const __le32 rndis_driver_version = __constant_cpu_to_le32 (1); |
| 78 | |
| 79 | /* Function Prototypes */ |
| 80 | static int rndis_init_response (int configNr, rndis_init_msg_type *buf); |
| 81 | static int rndis_query_response (int configNr, rndis_query_msg_type *buf); |
| 82 | static int rndis_set_response (int configNr, rndis_set_msg_type *buf); |
| 83 | static int rndis_reset_response (int configNr, rndis_reset_msg_type *buf); |
| 84 | static int rndis_keepalive_response (int configNr, |
| 85 | rndis_keepalive_msg_type *buf); |
| 86 | |
| 87 | static rndis_resp_t *rndis_add_response (int configNr, u32 length); |
| 88 | |
| 89 | |
| 90 | /* NDIS Functions */ |
| 91 | static int gen_ndis_query_resp (int configNr, u32 OID, rndis_resp_t *r) |
| 92 | { |
| 93 | int retval = -ENOTSUPP; |
| 94 | u32 length = 0; |
| 95 | __le32 *tmp; |
| 96 | int i, count; |
| 97 | rndis_query_cmplt_type *resp; |
| 98 | |
| 99 | if (!r) return -ENOMEM; |
| 100 | resp = (rndis_query_cmplt_type *) r->buf; |
| 101 | |
| 102 | if (!resp) return -ENOMEM; |
| 103 | |
| 104 | switch (OID) { |
| 105 | |
| 106 | /* general oids (table 4-1) */ |
| 107 | |
| 108 | /* mandatory */ |
| 109 | case OID_GEN_SUPPORTED_LIST: |
| 110 | DEBUG ("%s: OID_GEN_SUPPORTED_LIST\n", __FUNCTION__); |
| 111 | length = sizeof (oid_supported_list); |
| 112 | count = length / sizeof (u32); |
| 113 | tmp = (__le32 *) ((u8 *)resp + 24); |
| 114 | for (i = 0; i < count; i++) |
| 115 | tmp[i] = cpu_to_le32 (oid_supported_list[i]); |
| 116 | retval = 0; |
| 117 | break; |
| 118 | |
| 119 | /* mandatory */ |
| 120 | case OID_GEN_HARDWARE_STATUS: |
| 121 | DEBUG("%s: OID_GEN_HARDWARE_STATUS\n", __FUNCTION__); |
| 122 | length = 4; |
| 123 | /* Bogus question! |
| 124 | * Hardware must be ready to receive high level protocols. |
| 125 | * BTW: |
| 126 | * reddite ergo quae sunt Caesaris Caesari |
| 127 | * et quae sunt Dei Deo! |
| 128 | */ |
| 129 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 130 | retval = 0; |
| 131 | break; |
| 132 | |
| 133 | /* mandatory */ |
| 134 | case OID_GEN_MEDIA_SUPPORTED: |
| 135 | DEBUG("%s: OID_GEN_MEDIA_SUPPORTED\n", __FUNCTION__); |
| 136 | length = 4; |
| 137 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 138 | rndis_per_dev_params [configNr].medium); |
| 139 | retval = 0; |
| 140 | break; |
| 141 | |
| 142 | /* mandatory */ |
| 143 | case OID_GEN_MEDIA_IN_USE: |
| 144 | DEBUG("%s: OID_GEN_MEDIA_IN_USE\n", __FUNCTION__); |
| 145 | length = 4; |
| 146 | /* one medium, one transport... (maybe you do it better) */ |
| 147 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 148 | rndis_per_dev_params [configNr].medium); |
| 149 | retval = 0; |
| 150 | break; |
| 151 | |
| 152 | /* mandatory */ |
| 153 | case OID_GEN_MAXIMUM_FRAME_SIZE: |
| 154 | DEBUG("%s: OID_GEN_MAXIMUM_FRAME_SIZE\n", __FUNCTION__); |
| 155 | if (rndis_per_dev_params [configNr].dev) { |
| 156 | length = 4; |
| 157 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 158 | rndis_per_dev_params [configNr].dev->mtu); |
| 159 | retval = 0; |
| 160 | } else { |
| 161 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 162 | retval = 0; |
| 163 | } |
| 164 | break; |
| 165 | |
| 166 | /* mandatory */ |
| 167 | case OID_GEN_LINK_SPEED: |
| 168 | DEBUG("%s: OID_GEN_LINK_SPEED\n", __FUNCTION__); |
| 169 | length = 4; |
| 170 | if (rndis_per_dev_params [configNr].media_state |
| 171 | == NDIS_MEDIA_STATE_DISCONNECTED) |
| 172 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 173 | else |
| 174 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 175 | rndis_per_dev_params [configNr].speed); |
| 176 | retval = 0; |
| 177 | break; |
| 178 | |
| 179 | /* mandatory */ |
| 180 | case OID_GEN_TRANSMIT_BLOCK_SIZE: |
| 181 | DEBUG("%s: OID_GEN_TRANSMIT_BLOCK_SIZE\n", __FUNCTION__); |
| 182 | if (rndis_per_dev_params [configNr].dev) { |
| 183 | length = 4; |
| 184 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 185 | rndis_per_dev_params [configNr].dev->mtu); |
| 186 | retval = 0; |
| 187 | } |
| 188 | break; |
| 189 | |
| 190 | /* mandatory */ |
| 191 | case OID_GEN_RECEIVE_BLOCK_SIZE: |
| 192 | DEBUG("%s: OID_GEN_RECEIVE_BLOCK_SIZE\n", __FUNCTION__); |
| 193 | if (rndis_per_dev_params [configNr].dev) { |
| 194 | length = 4; |
| 195 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 196 | rndis_per_dev_params [configNr].dev->mtu); |
| 197 | retval = 0; |
| 198 | } |
| 199 | break; |
| 200 | |
| 201 | /* mandatory */ |
| 202 | case OID_GEN_VENDOR_ID: |
| 203 | DEBUG("%s: OID_GEN_VENDOR_ID\n", __FUNCTION__); |
| 204 | length = 4; |
| 205 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 206 | 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 | case OID_GEN_VENDOR_DRIVER_VERSION: |
| 220 | DEBUG("%s: OID_GEN_VENDOR_DRIVER_VERSION\n", __FUNCTION__); |
| 221 | length = 4; |
| 222 | /* Created as LE */ |
| 223 | *((__le32 *) resp + 6) = rndis_driver_version; |
| 224 | retval = 0; |
| 225 | break; |
| 226 | |
| 227 | /* mandatory */ |
| 228 | case OID_GEN_CURRENT_PACKET_FILTER: |
| 229 | DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER\n", __FUNCTION__); |
| 230 | length = 4; |
| 231 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 232 | rndis_per_dev_params[configNr].filter); |
| 233 | retval = 0; |
| 234 | break; |
| 235 | |
| 236 | /* mandatory */ |
| 237 | case OID_GEN_MAXIMUM_TOTAL_SIZE: |
| 238 | DEBUG("%s: OID_GEN_MAXIMUM_TOTAL_SIZE\n", __FUNCTION__); |
| 239 | length = 4; |
| 240 | *((__le32 *) resp + 6) = __constant_cpu_to_le32( |
| 241 | RNDIS_MAX_TOTAL_SIZE); |
| 242 | retval = 0; |
| 243 | break; |
| 244 | |
| 245 | /* mandatory */ |
| 246 | case OID_GEN_MEDIA_CONNECT_STATUS: |
| 247 | DEBUG("%s: OID_GEN_MEDIA_CONNECT_STATUS\n", __FUNCTION__); |
| 248 | length = 4; |
| 249 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 250 | rndis_per_dev_params [configNr] |
| 251 | .media_state); |
| 252 | retval = 0; |
| 253 | break; |
| 254 | |
| 255 | case OID_GEN_PHYSICAL_MEDIUM: |
| 256 | DEBUG("%s: OID_GEN_PHYSICAL_MEDIUM\n", __FUNCTION__); |
| 257 | length = 4; |
| 258 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 259 | retval = 0; |
| 260 | break; |
| 261 | |
| 262 | /* The RNDIS specification is incomplete/wrong. Some versions |
| 263 | * of MS-Windows expect OIDs that aren't specified there. Other |
| 264 | * versions emit undefined RNDIS messages. DOCUMENT ALL THESE! |
| 265 | */ |
| 266 | case OID_GEN_MAC_OPTIONS: /* from WinME */ |
| 267 | DEBUG("%s: OID_GEN_MAC_OPTIONS\n", __FUNCTION__); |
| 268 | length = 4; |
| 269 | *((__le32 *) resp + 6) = __constant_cpu_to_le32( |
| 270 | NDIS_MAC_OPTION_RECEIVE_SERIALIZED |
| 271 | | NDIS_MAC_OPTION_FULL_DUPLEX); |
| 272 | retval = 0; |
| 273 | break; |
| 274 | |
| 275 | /* statistics OIDs (table 4-2) */ |
| 276 | |
| 277 | /* mandatory */ |
| 278 | case OID_GEN_XMIT_OK: |
| 279 | DEBUG("%s: OID_GEN_XMIT_OK\n", __FUNCTION__); |
| 280 | if (rndis_per_dev_params [configNr].stats) { |
| 281 | length = 4; |
| 282 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 283 | rndis_per_dev_params [configNr].stats->tx_packets - |
| 284 | rndis_per_dev_params [configNr].stats->tx_errors - |
| 285 | rndis_per_dev_params [configNr].stats->tx_dropped); |
| 286 | retval = 0; |
| 287 | } else { |
| 288 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 289 | retval = 0; |
| 290 | } |
| 291 | break; |
| 292 | |
| 293 | /* mandatory */ |
| 294 | case OID_GEN_RCV_OK: |
| 295 | DEBUG("%s: OID_GEN_RCV_OK\n", __FUNCTION__); |
| 296 | if (rndis_per_dev_params [configNr].stats) { |
| 297 | length = 4; |
| 298 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 299 | rndis_per_dev_params [configNr].stats->rx_packets - |
| 300 | rndis_per_dev_params [configNr].stats->rx_errors - |
| 301 | rndis_per_dev_params [configNr].stats->rx_dropped); |
| 302 | retval = 0; |
| 303 | } else { |
| 304 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 305 | retval = 0; |
| 306 | } |
| 307 | break; |
| 308 | |
| 309 | /* mandatory */ |
| 310 | case OID_GEN_XMIT_ERROR: |
| 311 | DEBUG("%s: OID_GEN_XMIT_ERROR\n", __FUNCTION__); |
| 312 | if (rndis_per_dev_params [configNr].stats) { |
| 313 | length = 4; |
| 314 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 315 | rndis_per_dev_params [configNr] |
| 316 | .stats->tx_errors); |
| 317 | retval = 0; |
| 318 | } else { |
| 319 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 320 | retval = 0; |
| 321 | } |
| 322 | break; |
| 323 | |
| 324 | /* mandatory */ |
| 325 | case OID_GEN_RCV_ERROR: |
| 326 | DEBUG("%s: OID_GEN_RCV_ERROR\n", __FUNCTION__); |
| 327 | if (rndis_per_dev_params [configNr].stats) { |
| 328 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 329 | rndis_per_dev_params [configNr] |
| 330 | .stats->rx_errors); |
| 331 | retval = 0; |
| 332 | } else { |
| 333 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 334 | retval = 0; |
| 335 | } |
| 336 | break; |
| 337 | |
| 338 | /* mandatory */ |
| 339 | case OID_GEN_RCV_NO_BUFFER: |
| 340 | DEBUG("%s: OID_GEN_RCV_NO_BUFFER\n", __FUNCTION__); |
| 341 | if (rndis_per_dev_params [configNr].stats) { |
| 342 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 343 | rndis_per_dev_params [configNr] |
| 344 | .stats->rx_dropped); |
| 345 | retval = 0; |
| 346 | } else { |
| 347 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 348 | retval = 0; |
| 349 | } |
| 350 | break; |
| 351 | |
| 352 | #ifdef RNDIS_OPTIONAL_STATS |
| 353 | case OID_GEN_DIRECTED_BYTES_XMIT: |
| 354 | DEBUG("%s: OID_GEN_DIRECTED_BYTES_XMIT\n", __FUNCTION__); |
| 355 | /* |
| 356 | * Aunt Tilly's size of shoes |
| 357 | * minus antarctica count of penguins |
| 358 | * divided by weight of Alpha Centauri |
| 359 | */ |
| 360 | if (rndis_per_dev_params [configNr].stats) { |
| 361 | length = 4; |
| 362 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 363 | (rndis_per_dev_params [configNr] |
| 364 | .stats->tx_packets - |
| 365 | rndis_per_dev_params [configNr] |
| 366 | .stats->tx_errors - |
| 367 | rndis_per_dev_params [configNr] |
| 368 | .stats->tx_dropped) |
| 369 | * 123); |
| 370 | retval = 0; |
| 371 | } else { |
| 372 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 373 | retval = 0; |
| 374 | } |
| 375 | break; |
| 376 | |
| 377 | case OID_GEN_DIRECTED_FRAMES_XMIT: |
| 378 | DEBUG("%s: OID_GEN_DIRECTED_FRAMES_XMIT\n", __FUNCTION__); |
| 379 | /* dito */ |
| 380 | if (rndis_per_dev_params [configNr].stats) { |
| 381 | length = 4; |
| 382 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 383 | (rndis_per_dev_params [configNr] |
| 384 | .stats->tx_packets - |
| 385 | rndis_per_dev_params [configNr] |
| 386 | .stats->tx_errors - |
| 387 | rndis_per_dev_params [configNr] |
| 388 | .stats->tx_dropped) |
| 389 | / 123); |
| 390 | retval = 0; |
| 391 | } else { |
| 392 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 393 | retval = 0; |
| 394 | } |
| 395 | break; |
| 396 | |
| 397 | case OID_GEN_MULTICAST_BYTES_XMIT: |
| 398 | DEBUG("%s: OID_GEN_MULTICAST_BYTES_XMIT\n", __FUNCTION__); |
| 399 | if (rndis_per_dev_params [configNr].stats) { |
| 400 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 401 | rndis_per_dev_params [configNr] |
| 402 | .stats->multicast*1234); |
| 403 | retval = 0; |
| 404 | } else { |
| 405 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 406 | retval = 0; |
| 407 | } |
| 408 | break; |
| 409 | |
| 410 | case OID_GEN_MULTICAST_FRAMES_XMIT: |
| 411 | DEBUG("%s: OID_GEN_MULTICAST_FRAMES_XMIT\n", __FUNCTION__); |
| 412 | if (rndis_per_dev_params [configNr].stats) { |
| 413 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 414 | rndis_per_dev_params [configNr] |
| 415 | .stats->multicast); |
| 416 | retval = 0; |
| 417 | } else { |
| 418 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 419 | retval = 0; |
| 420 | } |
| 421 | break; |
| 422 | |
| 423 | case OID_GEN_BROADCAST_BYTES_XMIT: |
| 424 | DEBUG("%s: OID_GEN_BROADCAST_BYTES_XMIT\n", __FUNCTION__); |
| 425 | if (rndis_per_dev_params [configNr].stats) { |
| 426 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 427 | rndis_per_dev_params [configNr] |
| 428 | .stats->tx_packets/42*255); |
| 429 | retval = 0; |
| 430 | } else { |
| 431 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 432 | retval = 0; |
| 433 | } |
| 434 | break; |
| 435 | |
| 436 | case OID_GEN_BROADCAST_FRAMES_XMIT: |
| 437 | DEBUG("%s: OID_GEN_BROADCAST_FRAMES_XMIT\n", __FUNCTION__); |
| 438 | if (rndis_per_dev_params [configNr].stats) { |
| 439 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 440 | rndis_per_dev_params [configNr] |
| 441 | .stats->tx_packets/42); |
| 442 | retval = 0; |
| 443 | } else { |
| 444 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 445 | retval = 0; |
| 446 | } |
| 447 | break; |
| 448 | |
| 449 | case OID_GEN_DIRECTED_BYTES_RCV: |
| 450 | DEBUG("%s: OID_GEN_DIRECTED_BYTES_RCV\n", __FUNCTION__); |
| 451 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 452 | retval = 0; |
| 453 | break; |
| 454 | |
| 455 | case OID_GEN_DIRECTED_FRAMES_RCV: |
| 456 | DEBUG("%s: OID_GEN_DIRECTED_FRAMES_RCV\n", __FUNCTION__); |
| 457 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 458 | retval = 0; |
| 459 | break; |
| 460 | |
| 461 | case OID_GEN_MULTICAST_BYTES_RCV: |
| 462 | DEBUG("%s: OID_GEN_MULTICAST_BYTES_RCV\n", __FUNCTION__); |
| 463 | if (rndis_per_dev_params [configNr].stats) { |
| 464 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 465 | rndis_per_dev_params [configNr] |
| 466 | .stats->multicast * 1111); |
| 467 | retval = 0; |
| 468 | } else { |
| 469 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 470 | retval = 0; |
| 471 | } |
| 472 | break; |
| 473 | |
| 474 | case OID_GEN_MULTICAST_FRAMES_RCV: |
| 475 | DEBUG("%s: OID_GEN_MULTICAST_FRAMES_RCV\n", __FUNCTION__); |
| 476 | if (rndis_per_dev_params [configNr].stats) { |
| 477 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 478 | rndis_per_dev_params [configNr] |
| 479 | .stats->multicast); |
| 480 | retval = 0; |
| 481 | } else { |
| 482 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 483 | retval = 0; |
| 484 | } |
| 485 | break; |
| 486 | |
| 487 | case OID_GEN_BROADCAST_BYTES_RCV: |
| 488 | DEBUG("%s: OID_GEN_BROADCAST_BYTES_RCV\n", __FUNCTION__); |
| 489 | if (rndis_per_dev_params [configNr].stats) { |
| 490 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 491 | rndis_per_dev_params [configNr] |
| 492 | .stats->rx_packets/42*255); |
| 493 | retval = 0; |
| 494 | } else { |
| 495 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 496 | retval = 0; |
| 497 | } |
| 498 | break; |
| 499 | |
| 500 | case OID_GEN_BROADCAST_FRAMES_RCV: |
| 501 | DEBUG("%s: OID_GEN_BROADCAST_FRAMES_RCV\n", __FUNCTION__); |
| 502 | if (rndis_per_dev_params [configNr].stats) { |
| 503 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 504 | rndis_per_dev_params [configNr] |
| 505 | .stats->rx_packets/42); |
| 506 | retval = 0; |
| 507 | } else { |
| 508 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 509 | retval = 0; |
| 510 | } |
| 511 | break; |
| 512 | |
| 513 | case OID_GEN_RCV_CRC_ERROR: |
| 514 | DEBUG("%s: OID_GEN_RCV_CRC_ERROR\n", __FUNCTION__); |
| 515 | if (rndis_per_dev_params [configNr].stats) { |
| 516 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 517 | rndis_per_dev_params [configNr] |
| 518 | .stats->rx_crc_errors); |
| 519 | retval = 0; |
| 520 | } else { |
| 521 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 522 | retval = 0; |
| 523 | } |
| 524 | break; |
| 525 | |
| 526 | case OID_GEN_TRANSMIT_QUEUE_LENGTH: |
| 527 | DEBUG("%s: OID_GEN_TRANSMIT_QUEUE_LENGTH\n", __FUNCTION__); |
| 528 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 529 | retval = 0; |
| 530 | break; |
| 531 | #endif /* RNDIS_OPTIONAL_STATS */ |
| 532 | |
| 533 | /* ieee802.3 OIDs (table 4-3) */ |
| 534 | |
| 535 | /* mandatory */ |
| 536 | case OID_802_3_PERMANENT_ADDRESS: |
| 537 | DEBUG("%s: OID_802_3_PERMANENT_ADDRESS\n", __FUNCTION__); |
| 538 | if (rndis_per_dev_params [configNr].dev) { |
| 539 | length = ETH_ALEN; |
| 540 | memcpy ((u8 *) resp + 24, |
| 541 | rndis_per_dev_params [configNr].host_mac, |
| 542 | length); |
| 543 | retval = 0; |
| 544 | } else { |
| 545 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 546 | retval = 0; |
| 547 | } |
| 548 | break; |
| 549 | |
| 550 | /* mandatory */ |
| 551 | case OID_802_3_CURRENT_ADDRESS: |
| 552 | DEBUG("%s: OID_802_3_CURRENT_ADDRESS\n", __FUNCTION__); |
| 553 | if (rndis_per_dev_params [configNr].dev) { |
| 554 | length = ETH_ALEN; |
| 555 | memcpy ((u8 *) resp + 24, |
| 556 | rndis_per_dev_params [configNr].host_mac, |
| 557 | length); |
| 558 | retval = 0; |
| 559 | } |
| 560 | break; |
| 561 | |
| 562 | /* mandatory */ |
| 563 | case OID_802_3_MULTICAST_LIST: |
| 564 | DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__); |
| 565 | length = 4; |
| 566 | /* Multicast base address only */ |
| 567 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0xE0000000); |
| 568 | retval = 0; |
| 569 | break; |
| 570 | |
| 571 | /* mandatory */ |
| 572 | case OID_802_3_MAXIMUM_LIST_SIZE: |
| 573 | DEBUG("%s: OID_802_3_MAXIMUM_LIST_SIZE\n", __FUNCTION__); |
| 574 | length = 4; |
| 575 | /* Multicast base address only */ |
| 576 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (1); |
| 577 | retval = 0; |
| 578 | break; |
| 579 | |
| 580 | case OID_802_3_MAC_OPTIONS: |
| 581 | DEBUG("%s: OID_802_3_MAC_OPTIONS\n", __FUNCTION__); |
| 582 | break; |
| 583 | |
| 584 | /* ieee802.3 statistics OIDs (table 4-4) */ |
| 585 | |
| 586 | /* mandatory */ |
| 587 | case OID_802_3_RCV_ERROR_ALIGNMENT: |
| 588 | DEBUG("%s: OID_802_3_RCV_ERROR_ALIGNMENT\n", __FUNCTION__); |
| 589 | if (rndis_per_dev_params [configNr].stats) |
| 590 | { |
| 591 | length = 4; |
| 592 | *((__le32 *) resp + 6) = cpu_to_le32 ( |
| 593 | rndis_per_dev_params [configNr] |
| 594 | .stats->rx_frame_errors); |
| 595 | retval = 0; |
| 596 | } |
| 597 | break; |
| 598 | |
| 599 | /* mandatory */ |
| 600 | case OID_802_3_XMIT_ONE_COLLISION: |
| 601 | DEBUG("%s: OID_802_3_XMIT_ONE_COLLISION\n", __FUNCTION__); |
| 602 | length = 4; |
| 603 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 604 | retval = 0; |
| 605 | break; |
| 606 | |
| 607 | /* mandatory */ |
| 608 | case OID_802_3_XMIT_MORE_COLLISIONS: |
| 609 | DEBUG("%s: OID_802_3_XMIT_MORE_COLLISIONS\n", __FUNCTION__); |
| 610 | length = 4; |
| 611 | *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0); |
| 612 | retval = 0; |
| 613 | break; |
| 614 | |
| 615 | #ifdef RNDIS_OPTIONAL_STATS |
| 616 | case OID_802_3_XMIT_DEFERRED: |
| 617 | DEBUG("%s: OID_802_3_XMIT_DEFERRED\n", __FUNCTION__); |
| 618 | /* TODO */ |
| 619 | break; |
| 620 | |
| 621 | case OID_802_3_XMIT_MAX_COLLISIONS: |
| 622 | DEBUG("%s: OID_802_3_XMIT_MAX_COLLISIONS\n", __FUNCTION__); |
| 623 | /* TODO */ |
| 624 | break; |
| 625 | |
| 626 | case OID_802_3_RCV_OVERRUN: |
| 627 | DEBUG("%s: OID_802_3_RCV_OVERRUN\n", __FUNCTION__); |
| 628 | /* TODO */ |
| 629 | break; |
| 630 | |
| 631 | case OID_802_3_XMIT_UNDERRUN: |
| 632 | DEBUG("%s: OID_802_3_XMIT_UNDERRUN\n", __FUNCTION__); |
| 633 | /* TODO */ |
| 634 | break; |
| 635 | |
| 636 | case OID_802_3_XMIT_HEARTBEAT_FAILURE: |
| 637 | DEBUG("%s: OID_802_3_XMIT_HEARTBEAT_FAILURE\n", __FUNCTION__); |
| 638 | /* TODO */ |
| 639 | break; |
| 640 | |
| 641 | case OID_802_3_XMIT_TIMES_CRS_LOST: |
| 642 | DEBUG("%s: OID_802_3_XMIT_TIMES_CRS_LOST\n", __FUNCTION__); |
| 643 | /* TODO */ |
| 644 | break; |
| 645 | |
| 646 | case OID_802_3_XMIT_LATE_COLLISIONS: |
| 647 | DEBUG("%s: OID_802_3_XMIT_LATE_COLLISIONS\n", __FUNCTION__); |
| 648 | /* TODO */ |
| 649 | break; |
| 650 | #endif /* RNDIS_OPTIONAL_STATS */ |
| 651 | |
| 652 | #ifdef RNDIS_PM |
| 653 | /* power management OIDs (table 4-5) */ |
| 654 | case OID_PNP_CAPABILITIES: |
| 655 | DEBUG("%s: OID_PNP_CAPABILITIES\n", __FUNCTION__); |
| 656 | |
| 657 | /* just PM, and remote wakeup on link status change |
| 658 | * (not magic packet or pattern match) |
| 659 | */ |
| 660 | length = sizeof (struct NDIS_PNP_CAPABILITIES); |
| 661 | memset (resp, 0, length); |
| 662 | { |
| 663 | struct NDIS_PNP_CAPABILITIES *caps = (void *) resp; |
| 664 | |
| 665 | caps->Flags = NDIS_DEVICE_WAKE_UP_ENABLE; |
| 666 | caps->WakeUpCapabilities.MinLinkChangeWakeUp |
| 667 | = NdisDeviceStateD3; |
| 668 | |
| 669 | /* FIXME then use usb_gadget_wakeup(), and |
| 670 | * set USB_CONFIG_ATT_WAKEUP in config desc |
| 671 | */ |
| 672 | } |
| 673 | retval = 0; |
| 674 | break; |
| 675 | case OID_PNP_QUERY_POWER: |
| 676 | DEBUG("%s: OID_PNP_QUERY_POWER\n", __FUNCTION__); |
| 677 | /* sure, handle any power state that maps to USB suspend */ |
| 678 | retval = 0; |
| 679 | break; |
| 680 | #endif |
| 681 | |
| 682 | default: |
| 683 | printk (KERN_WARNING "%s: query unknown OID 0x%08X\n", |
| 684 | __FUNCTION__, OID); |
| 685 | } |
| 686 | |
| 687 | resp->InformationBufferOffset = __constant_cpu_to_le32 (16); |
| 688 | resp->InformationBufferLength = cpu_to_le32 (length); |
| 689 | resp->MessageLength = cpu_to_le32 (24 + length); |
| 690 | r->length = 24 + length; |
| 691 | return retval; |
| 692 | } |
| 693 | |
| 694 | static int gen_ndis_set_resp (u8 configNr, u32 OID, u8 *buf, u32 buf_len, |
| 695 | rndis_resp_t *r) |
| 696 | { |
| 697 | rndis_set_cmplt_type *resp; |
| 698 | int i, retval = -ENOTSUPP; |
| 699 | struct rndis_params *params; |
| 700 | |
| 701 | if (!r) |
| 702 | return -ENOMEM; |
| 703 | resp = (rndis_set_cmplt_type *) r->buf; |
| 704 | if (!resp) |
| 705 | return -ENOMEM; |
| 706 | |
| 707 | DEBUG("set OID %08x value, len %d:\n", OID, buf_len); |
| 708 | for (i = 0; i < buf_len; i += 16) { |
| 709 | DEBUG ("%03d: " |
| 710 | " %02x %02x %02x %02x" |
| 711 | " %02x %02x %02x %02x" |
| 712 | " %02x %02x %02x %02x" |
| 713 | " %02x %02x %02x %02x" |
| 714 | "\n", |
| 715 | i, |
| 716 | buf[i], buf [i+1], |
| 717 | buf[i+2], buf[i+3], |
| 718 | buf[i+4], buf [i+5], |
| 719 | buf[i+6], buf[i+7], |
| 720 | buf[i+8], buf [i+9], |
| 721 | buf[i+10], buf[i+11], |
| 722 | buf[i+12], buf [i+13], |
| 723 | buf[i+14], buf[i+15]); |
| 724 | } |
| 725 | |
| 726 | switch (OID) { |
| 727 | case OID_GEN_CURRENT_PACKET_FILTER: |
| 728 | params = &rndis_per_dev_params [configNr]; |
| 729 | retval = 0; |
| 730 | |
| 731 | /* FIXME use these NDIS_PACKET_TYPE_* bitflags to |
| 732 | * filter packets in hard_start_xmit() |
| 733 | * NDIS_PACKET_TYPE_x == USB_CDC_PACKET_TYPE_x for x in: |
| 734 | * PROMISCUOUS, DIRECTED, |
| 735 | * MULTICAST, ALL_MULTICAST, BROADCAST |
| 736 | */ |
| 737 | params->filter = le32_to_cpup((__le32 *)buf); |
| 738 | DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER %08x\n", |
| 739 | __FUNCTION__, params->filter); |
| 740 | |
| 741 | /* this call has a significant side effect: it's |
| 742 | * what makes the packet flow start and stop, like |
| 743 | * activating the CDC Ethernet altsetting. |
| 744 | */ |
| 745 | if (params->filter) { |
| 746 | params->state = RNDIS_DATA_INITIALIZED; |
| 747 | netif_carrier_on(params->dev); |
| 748 | if (netif_running(params->dev)) |
| 749 | netif_wake_queue (params->dev); |
| 750 | } else { |
| 751 | params->state = RNDIS_INITIALIZED; |
| 752 | netif_carrier_off (params->dev); |
| 753 | netif_stop_queue (params->dev); |
| 754 | } |
| 755 | break; |
| 756 | |
| 757 | case OID_802_3_MULTICAST_LIST: |
| 758 | /* I think we can ignore this */ |
| 759 | DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__); |
| 760 | retval = 0; |
| 761 | break; |
| 762 | #if 0 |
| 763 | case OID_GEN_RNDIS_CONFIG_PARAMETER: |
| 764 | { |
| 765 | struct rndis_config_parameter *param; |
| 766 | param = (struct rndis_config_parameter *) buf; |
| 767 | DEBUG("%s: OID_GEN_RNDIS_CONFIG_PARAMETER '%*s'\n", |
| 768 | __FUNCTION__, |
| 769 | min(cpu_to_le32(param->ParameterNameLength),80), |
| 770 | buf + param->ParameterNameOffset); |
| 771 | retval = 0; |
| 772 | } |
| 773 | break; |
| 774 | #endif |
| 775 | |
| 776 | #ifdef RNDIS_PM |
| 777 | case OID_PNP_SET_POWER: |
| 778 | DEBUG ("OID_PNP_SET_POWER\n"); |
| 779 | /* sure, handle any power state that maps to USB suspend */ |
| 780 | retval = 0; |
| 781 | break; |
| 782 | |
| 783 | case OID_PNP_ENABLE_WAKE_UP: |
| 784 | /* always-connected ... */ |
| 785 | DEBUG ("OID_PNP_ENABLE_WAKE_UP\n"); |
| 786 | retval = 0; |
| 787 | break; |
| 788 | |
| 789 | // no PM resume patterns supported (specified where?) |
| 790 | // so OID_PNP_{ADD,REMOVE}_WAKE_UP_PATTERN always fails |
| 791 | #endif |
| 792 | |
| 793 | default: |
| 794 | printk (KERN_WARNING "%s: set unknown OID 0x%08X, size %d\n", |
| 795 | __FUNCTION__, OID, buf_len); |
| 796 | } |
| 797 | |
| 798 | return retval; |
| 799 | } |
| 800 | |
| 801 | /* |
| 802 | * Response Functions |
| 803 | */ |
| 804 | |
| 805 | static int rndis_init_response (int configNr, rndis_init_msg_type *buf) |
| 806 | { |
| 807 | rndis_init_cmplt_type *resp; |
| 808 | rndis_resp_t *r; |
| 809 | |
| 810 | if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP; |
| 811 | |
| 812 | r = rndis_add_response (configNr, sizeof (rndis_init_cmplt_type)); |
| 813 | |
| 814 | if (!r) return -ENOMEM; |
| 815 | |
| 816 | resp = (rndis_init_cmplt_type *) r->buf; |
| 817 | |
| 818 | if (!resp) return -ENOMEM; |
| 819 | |
| 820 | resp->MessageType = __constant_cpu_to_le32 ( |
| 821 | REMOTE_NDIS_INITIALIZE_CMPLT); |
| 822 | resp->MessageLength = __constant_cpu_to_le32 (52); |
| 823 | resp->RequestID = buf->RequestID; /* Still LE in msg buffer */ |
| 824 | resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS); |
| 825 | resp->MajorVersion = __constant_cpu_to_le32 (RNDIS_MAJOR_VERSION); |
| 826 | resp->MinorVersion = __constant_cpu_to_le32 (RNDIS_MINOR_VERSION); |
| 827 | resp->DeviceFlags = __constant_cpu_to_le32 (RNDIS_DF_CONNECTIONLESS); |
| 828 | resp->Medium = __constant_cpu_to_le32 (RNDIS_MEDIUM_802_3); |
| 829 | resp->MaxPacketsPerTransfer = __constant_cpu_to_le32 (1); |
| 830 | resp->MaxTransferSize = cpu_to_le32 ( |
| 831 | rndis_per_dev_params [configNr].dev->mtu |
| 832 | + sizeof (struct ethhdr) |
| 833 | + sizeof (struct rndis_packet_msg_type) |
| 834 | + 22); |
| 835 | resp->PacketAlignmentFactor = __constant_cpu_to_le32 (0); |
| 836 | resp->AFListOffset = __constant_cpu_to_le32 (0); |
| 837 | resp->AFListSize = __constant_cpu_to_le32 (0); |
| 838 | |
| 839 | if (rndis_per_dev_params [configNr].ack) |
| 840 | rndis_per_dev_params [configNr].ack ( |
| 841 | rndis_per_dev_params [configNr].dev); |
| 842 | |
| 843 | return 0; |
| 844 | } |
| 845 | |
| 846 | static int rndis_query_response (int configNr, rndis_query_msg_type *buf) |
| 847 | { |
| 848 | rndis_query_cmplt_type *resp; |
| 849 | rndis_resp_t *r; |
| 850 | |
| 851 | // DEBUG("%s: OID = %08X\n", __FUNCTION__, cpu_to_le32(buf->OID)); |
| 852 | if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP; |
| 853 | |
| 854 | /* |
| 855 | * we need more memory: |
| 856 | * oid_supported_list is the largest answer |
| 857 | */ |
| 858 | r = rndis_add_response (configNr, sizeof (oid_supported_list)); |
| 859 | |
| 860 | if (!r) return -ENOMEM; |
| 861 | resp = (rndis_query_cmplt_type *) r->buf; |
| 862 | |
| 863 | if (!resp) return -ENOMEM; |
| 864 | |
| 865 | resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_QUERY_CMPLT); |
| 866 | resp->MessageLength = __constant_cpu_to_le32 (24); |
| 867 | resp->RequestID = buf->RequestID; /* Still LE in msg buffer */ |
| 868 | |
| 869 | if (gen_ndis_query_resp (configNr, le32_to_cpu (buf->OID), r)) { |
| 870 | /* OID not supported */ |
| 871 | resp->Status = __constant_cpu_to_le32 ( |
| 872 | RNDIS_STATUS_NOT_SUPPORTED); |
| 873 | resp->InformationBufferLength = __constant_cpu_to_le32 (0); |
| 874 | resp->InformationBufferOffset = __constant_cpu_to_le32 (0); |
| 875 | } else |
| 876 | resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS); |
| 877 | |
| 878 | if (rndis_per_dev_params [configNr].ack) |
| 879 | rndis_per_dev_params [configNr].ack ( |
| 880 | rndis_per_dev_params [configNr].dev); |
| 881 | return 0; |
| 882 | } |
| 883 | |
| 884 | static int rndis_set_response (int configNr, rndis_set_msg_type *buf) |
| 885 | { |
| 886 | u32 BufLength, BufOffset; |
| 887 | rndis_set_cmplt_type *resp; |
| 888 | rndis_resp_t *r; |
| 889 | |
| 890 | r = rndis_add_response (configNr, sizeof (rndis_set_cmplt_type)); |
| 891 | |
| 892 | if (!r) return -ENOMEM; |
| 893 | resp = (rndis_set_cmplt_type *) r->buf; |
| 894 | if (!resp) return -ENOMEM; |
| 895 | |
| 896 | BufLength = le32_to_cpu (buf->InformationBufferLength); |
| 897 | BufOffset = le32_to_cpu (buf->InformationBufferOffset); |
| 898 | |
| 899 | #ifdef VERBOSE |
| 900 | DEBUG("%s: Length: %d\n", __FUNCTION__, BufLength); |
| 901 | DEBUG("%s: Offset: %d\n", __FUNCTION__, BufOffset); |
| 902 | DEBUG("%s: InfoBuffer: ", __FUNCTION__); |
| 903 | |
| 904 | for (i = 0; i < BufLength; i++) { |
| 905 | DEBUG ("%02x ", *(((u8 *) buf) + i + 8 + BufOffset)); |
| 906 | } |
| 907 | |
| 908 | DEBUG ("\n"); |
| 909 | #endif |
| 910 | |
| 911 | resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_SET_CMPLT); |
| 912 | resp->MessageLength = __constant_cpu_to_le32 (16); |
| 913 | resp->RequestID = buf->RequestID; /* Still LE in msg buffer */ |
| 914 | if (gen_ndis_set_resp (configNr, le32_to_cpu (buf->OID), |
| 915 | ((u8 *) buf) + 8 + BufOffset, BufLength, r)) |
| 916 | resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_NOT_SUPPORTED); |
| 917 | else resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS); |
| 918 | |
| 919 | if (rndis_per_dev_params [configNr].ack) |
| 920 | rndis_per_dev_params [configNr].ack ( |
| 921 | rndis_per_dev_params [configNr].dev); |
| 922 | |
| 923 | return 0; |
| 924 | } |
| 925 | |
| 926 | static int rndis_reset_response (int configNr, rndis_reset_msg_type *buf) |
| 927 | { |
| 928 | rndis_reset_cmplt_type *resp; |
| 929 | rndis_resp_t *r; |
| 930 | |
| 931 | r = rndis_add_response (configNr, sizeof (rndis_reset_cmplt_type)); |
| 932 | |
| 933 | if (!r) return -ENOMEM; |
| 934 | resp = (rndis_reset_cmplt_type *) r->buf; |
| 935 | if (!resp) return -ENOMEM; |
| 936 | |
| 937 | resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_RESET_CMPLT); |
| 938 | resp->MessageLength = __constant_cpu_to_le32 (16); |
| 939 | resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS); |
| 940 | /* resent information */ |
| 941 | resp->AddressingReset = __constant_cpu_to_le32 (1); |
| 942 | |
| 943 | if (rndis_per_dev_params [configNr].ack) |
| 944 | rndis_per_dev_params [configNr].ack ( |
| 945 | rndis_per_dev_params [configNr].dev); |
| 946 | |
| 947 | return 0; |
| 948 | } |
| 949 | |
| 950 | static int rndis_keepalive_response (int configNr, |
| 951 | rndis_keepalive_msg_type *buf) |
| 952 | { |
| 953 | rndis_keepalive_cmplt_type *resp; |
| 954 | rndis_resp_t *r; |
| 955 | |
| 956 | /* host "should" check only in RNDIS_DATA_INITIALIZED state */ |
| 957 | |
| 958 | r = rndis_add_response (configNr, sizeof (rndis_keepalive_cmplt_type)); |
| 959 | resp = (rndis_keepalive_cmplt_type *) r->buf; |
| 960 | if (!resp) return -ENOMEM; |
| 961 | |
| 962 | resp->MessageType = __constant_cpu_to_le32 ( |
| 963 | REMOTE_NDIS_KEEPALIVE_CMPLT); |
| 964 | resp->MessageLength = __constant_cpu_to_le32 (16); |
| 965 | resp->RequestID = buf->RequestID; /* Still LE in msg buffer */ |
| 966 | resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS); |
| 967 | |
| 968 | if (rndis_per_dev_params [configNr].ack) |
| 969 | rndis_per_dev_params [configNr].ack ( |
| 970 | rndis_per_dev_params [configNr].dev); |
| 971 | |
| 972 | return 0; |
| 973 | } |
| 974 | |
| 975 | |
| 976 | /* |
| 977 | * Device to Host Comunication |
| 978 | */ |
| 979 | static int rndis_indicate_status_msg (int configNr, u32 status) |
| 980 | { |
| 981 | rndis_indicate_status_msg_type *resp; |
| 982 | rndis_resp_t *r; |
| 983 | |
| 984 | if (rndis_per_dev_params [configNr].state == RNDIS_UNINITIALIZED) |
| 985 | return -ENOTSUPP; |
| 986 | |
| 987 | r = rndis_add_response (configNr, |
| 988 | sizeof (rndis_indicate_status_msg_type)); |
| 989 | if (!r) return -ENOMEM; |
| 990 | |
| 991 | resp = (rndis_indicate_status_msg_type *) r->buf; |
| 992 | if (!resp) return -ENOMEM; |
| 993 | |
| 994 | resp->MessageType = __constant_cpu_to_le32 ( |
| 995 | REMOTE_NDIS_INDICATE_STATUS_MSG); |
| 996 | resp->MessageLength = __constant_cpu_to_le32 (20); |
| 997 | resp->Status = cpu_to_le32 (status); |
| 998 | resp->StatusBufferLength = __constant_cpu_to_le32 (0); |
| 999 | resp->StatusBufferOffset = __constant_cpu_to_le32 (0); |
| 1000 | |
| 1001 | if (rndis_per_dev_params [configNr].ack) |
| 1002 | rndis_per_dev_params [configNr].ack ( |
| 1003 | rndis_per_dev_params [configNr].dev); |
| 1004 | return 0; |
| 1005 | } |
| 1006 | |
| 1007 | int rndis_signal_connect (int configNr) |
| 1008 | { |
| 1009 | rndis_per_dev_params [configNr].media_state |
| 1010 | = NDIS_MEDIA_STATE_CONNECTED; |
| 1011 | return rndis_indicate_status_msg (configNr, |
| 1012 | RNDIS_STATUS_MEDIA_CONNECT); |
| 1013 | } |
| 1014 | |
| 1015 | int rndis_signal_disconnect (int configNr) |
| 1016 | { |
| 1017 | rndis_per_dev_params [configNr].media_state |
| 1018 | = NDIS_MEDIA_STATE_DISCONNECTED; |
| 1019 | return rndis_indicate_status_msg (configNr, |
| 1020 | RNDIS_STATUS_MEDIA_DISCONNECT); |
| 1021 | } |
| 1022 | |
| 1023 | void rndis_set_host_mac (int configNr, const u8 *addr) |
| 1024 | { |
| 1025 | rndis_per_dev_params [configNr].host_mac = addr; |
| 1026 | } |
| 1027 | |
| 1028 | /* |
| 1029 | * Message Parser |
| 1030 | */ |
| 1031 | int rndis_msg_parser (u8 configNr, u8 *buf) |
| 1032 | { |
| 1033 | u32 MsgType, MsgLength; |
| 1034 | __le32 *tmp; |
| 1035 | struct rndis_params *params; |
| 1036 | |
| 1037 | if (!buf) |
| 1038 | return -ENOMEM; |
| 1039 | |
| 1040 | tmp = (__le32 *) buf; |
| 1041 | MsgType = le32_to_cpup(tmp++); |
| 1042 | MsgLength = le32_to_cpup(tmp++); |
| 1043 | |
| 1044 | if (configNr >= RNDIS_MAX_CONFIGS) |
| 1045 | return -ENOTSUPP; |
| 1046 | params = &rndis_per_dev_params [configNr]; |
| 1047 | |
| 1048 | /* For USB: responses may take up to 10 seconds */ |
| 1049 | switch (MsgType) |
| 1050 | { |
| 1051 | case REMOTE_NDIS_INITIALIZE_MSG: |
| 1052 | DEBUG("%s: REMOTE_NDIS_INITIALIZE_MSG\n", |
| 1053 | __FUNCTION__ ); |
| 1054 | params->state = RNDIS_INITIALIZED; |
| 1055 | return rndis_init_response (configNr, |
| 1056 | (rndis_init_msg_type *) buf); |
| 1057 | |
| 1058 | case REMOTE_NDIS_HALT_MSG: |
| 1059 | DEBUG("%s: REMOTE_NDIS_HALT_MSG\n", |
| 1060 | __FUNCTION__ ); |
| 1061 | params->state = RNDIS_UNINITIALIZED; |
| 1062 | if (params->dev) { |
| 1063 | netif_carrier_off (params->dev); |
| 1064 | netif_stop_queue (params->dev); |
| 1065 | } |
| 1066 | return 0; |
| 1067 | |
| 1068 | case REMOTE_NDIS_QUERY_MSG: |
| 1069 | return rndis_query_response (configNr, |
| 1070 | (rndis_query_msg_type *) buf); |
| 1071 | |
| 1072 | case REMOTE_NDIS_SET_MSG: |
| 1073 | return rndis_set_response (configNr, |
| 1074 | (rndis_set_msg_type *) buf); |
| 1075 | |
| 1076 | case REMOTE_NDIS_RESET_MSG: |
| 1077 | DEBUG("%s: REMOTE_NDIS_RESET_MSG\n", |
| 1078 | __FUNCTION__ ); |
| 1079 | return rndis_reset_response (configNr, |
| 1080 | (rndis_reset_msg_type *) buf); |
| 1081 | |
| 1082 | case REMOTE_NDIS_KEEPALIVE_MSG: |
| 1083 | /* For USB: host does this every 5 seconds */ |
| 1084 | #ifdef VERBOSE |
| 1085 | DEBUG("%s: REMOTE_NDIS_KEEPALIVE_MSG\n", |
| 1086 | __FUNCTION__ ); |
| 1087 | #endif |
| 1088 | return rndis_keepalive_response (configNr, |
| 1089 | (rndis_keepalive_msg_type *) |
| 1090 | buf); |
| 1091 | |
| 1092 | default: |
| 1093 | /* At least Windows XP emits some undefined RNDIS messages. |
| 1094 | * In one case those messages seemed to relate to the host |
| 1095 | * suspending itself. |
| 1096 | */ |
| 1097 | printk (KERN_WARNING |
| 1098 | "%s: unknown RNDIS message 0x%08X len %d\n", |
| 1099 | __FUNCTION__ , MsgType, MsgLength); |
| 1100 | { |
| 1101 | unsigned i; |
| 1102 | for (i = 0; i < MsgLength; i += 16) { |
| 1103 | DEBUG ("%03d: " |
| 1104 | " %02x %02x %02x %02x" |
| 1105 | " %02x %02x %02x %02x" |
| 1106 | " %02x %02x %02x %02x" |
| 1107 | " %02x %02x %02x %02x" |
| 1108 | "\n", |
| 1109 | i, |
| 1110 | buf[i], buf [i+1], |
| 1111 | buf[i+2], buf[i+3], |
| 1112 | buf[i+4], buf [i+5], |
| 1113 | buf[i+6], buf[i+7], |
| 1114 | buf[i+8], buf [i+9], |
| 1115 | buf[i+10], buf[i+11], |
| 1116 | buf[i+12], buf [i+13], |
| 1117 | buf[i+14], buf[i+15]); |
| 1118 | } |
| 1119 | } |
| 1120 | break; |
| 1121 | } |
| 1122 | |
| 1123 | return -ENOTSUPP; |
| 1124 | } |
| 1125 | |
| 1126 | int rndis_register (int (* rndis_control_ack) (struct net_device *)) |
| 1127 | { |
| 1128 | u8 i; |
| 1129 | |
| 1130 | for (i = 0; i < RNDIS_MAX_CONFIGS; i++) { |
| 1131 | if (!rndis_per_dev_params [i].used) { |
| 1132 | rndis_per_dev_params [i].used = 1; |
| 1133 | rndis_per_dev_params [i].ack = rndis_control_ack; |
| 1134 | DEBUG("%s: configNr = %d\n", __FUNCTION__, i); |
| 1135 | return i; |
| 1136 | } |
| 1137 | } |
| 1138 | DEBUG("failed\n"); |
| 1139 | |
| 1140 | return -1; |
| 1141 | } |
| 1142 | |
| 1143 | void rndis_deregister (int configNr) |
| 1144 | { |
| 1145 | DEBUG("%s: \n", __FUNCTION__ ); |
| 1146 | |
| 1147 | if (configNr >= RNDIS_MAX_CONFIGS) return; |
| 1148 | rndis_per_dev_params [configNr].used = 0; |
| 1149 | |
| 1150 | return; |
| 1151 | } |
| 1152 | |
| 1153 | int rndis_set_param_dev (u8 configNr, struct net_device *dev, |
| 1154 | struct net_device_stats *stats) |
| 1155 | { |
| 1156 | DEBUG("%s:\n", __FUNCTION__ ); |
| 1157 | if (!dev || !stats) return -1; |
| 1158 | if (configNr >= RNDIS_MAX_CONFIGS) return -1; |
| 1159 | |
| 1160 | rndis_per_dev_params [configNr].dev = dev; |
| 1161 | rndis_per_dev_params [configNr].stats = stats; |
| 1162 | |
| 1163 | return 0; |
| 1164 | } |
| 1165 | |
| 1166 | int rndis_set_param_vendor (u8 configNr, u32 vendorID, const char *vendorDescr) |
| 1167 | { |
| 1168 | DEBUG("%s:\n", __FUNCTION__ ); |
| 1169 | if (!vendorDescr) return -1; |
| 1170 | if (configNr >= RNDIS_MAX_CONFIGS) return -1; |
| 1171 | |
| 1172 | rndis_per_dev_params [configNr].vendorID = vendorID; |
| 1173 | rndis_per_dev_params [configNr].vendorDescr = vendorDescr; |
| 1174 | |
| 1175 | return 0; |
| 1176 | } |
| 1177 | |
| 1178 | int rndis_set_param_medium (u8 configNr, u32 medium, u32 speed) |
| 1179 | { |
| 1180 | DEBUG("%s:\n", __FUNCTION__ ); |
| 1181 | if (configNr >= RNDIS_MAX_CONFIGS) return -1; |
| 1182 | |
| 1183 | rndis_per_dev_params [configNr].medium = medium; |
| 1184 | rndis_per_dev_params [configNr].speed = speed; |
| 1185 | |
| 1186 | return 0; |
| 1187 | } |
| 1188 | |
| 1189 | void rndis_add_hdr (struct sk_buff *skb) |
| 1190 | { |
| 1191 | struct rndis_packet_msg_type *header; |
| 1192 | |
| 1193 | if (!skb) |
| 1194 | return; |
| 1195 | header = (void *) skb_push (skb, sizeof *header); |
| 1196 | memset (header, 0, sizeof *header); |
| 1197 | header->MessageType = __constant_cpu_to_le32 (1); |
| 1198 | header->MessageLength = cpu_to_le32(skb->len); |
| 1199 | header->DataOffset = __constant_cpu_to_le32 (36); |
| 1200 | header->OOBDataOffset = cpu_to_le32(skb->len - 44); |
| 1201 | } |
| 1202 | |
| 1203 | void rndis_free_response (int configNr, u8 *buf) |
| 1204 | { |
| 1205 | rndis_resp_t *r; |
| 1206 | struct list_head *act, *tmp; |
| 1207 | |
| 1208 | list_for_each_safe (act, tmp, |
| 1209 | &(rndis_per_dev_params [configNr].resp_queue)) |
| 1210 | { |
| 1211 | r = list_entry (act, rndis_resp_t, list); |
| 1212 | if (r && r->buf == buf) { |
| 1213 | list_del (&r->list); |
| 1214 | kfree (r); |
| 1215 | } |
| 1216 | } |
| 1217 | } |
| 1218 | |
| 1219 | u8 *rndis_get_next_response (int configNr, u32 *length) |
| 1220 | { |
| 1221 | rndis_resp_t *r; |
| 1222 | struct list_head *act, *tmp; |
| 1223 | |
| 1224 | if (!length) return NULL; |
| 1225 | |
| 1226 | list_for_each_safe (act, tmp, |
| 1227 | &(rndis_per_dev_params [configNr].resp_queue)) |
| 1228 | { |
| 1229 | r = list_entry (act, rndis_resp_t, list); |
| 1230 | if (!r->send) { |
| 1231 | r->send = 1; |
| 1232 | *length = r->length; |
| 1233 | return r->buf; |
| 1234 | } |
| 1235 | } |
| 1236 | |
| 1237 | return NULL; |
| 1238 | } |
| 1239 | |
| 1240 | static rndis_resp_t *rndis_add_response (int configNr, u32 length) |
| 1241 | { |
| 1242 | rndis_resp_t *r; |
| 1243 | |
| 1244 | r = kmalloc (sizeof (rndis_resp_t) + length, GFP_ATOMIC); |
| 1245 | if (!r) return NULL; |
| 1246 | |
| 1247 | r->buf = (u8 *) (r + 1); |
| 1248 | r->length = length; |
| 1249 | r->send = 0; |
| 1250 | |
| 1251 | list_add_tail (&r->list, |
| 1252 | &(rndis_per_dev_params [configNr].resp_queue)); |
| 1253 | return r; |
| 1254 | } |
| 1255 | |
| 1256 | int rndis_rm_hdr (u8 *buf, u32 *length) |
| 1257 | { |
| 1258 | u32 i, messageLen, dataOffset; |
| 1259 | __le32 *tmp; |
| 1260 | |
| 1261 | tmp = (__le32 *) buf; |
| 1262 | |
| 1263 | if (!buf || !length) return -1; |
| 1264 | if (le32_to_cpup(tmp++) != 1) return -1; |
| 1265 | |
| 1266 | messageLen = le32_to_cpup(tmp++); |
| 1267 | dataOffset = le32_to_cpup(tmp++) + 8; |
| 1268 | |
| 1269 | if (messageLen < dataOffset || messageLen > *length) return -1; |
| 1270 | |
| 1271 | for (i = dataOffset; i < messageLen; i++) |
| 1272 | buf [i - dataOffset] = buf [i]; |
| 1273 | |
| 1274 | *length = messageLen - dataOffset; |
| 1275 | |
| 1276 | return 0; |
| 1277 | } |
| 1278 | |
| 1279 | #ifdef CONFIG_USB_GADGET_DEBUG_FILES |
| 1280 | |
| 1281 | static int rndis_proc_read (char *page, char **start, off_t off, int count, int *eof, |
| 1282 | void *data) |
| 1283 | { |
| 1284 | char *out = page; |
| 1285 | int len; |
| 1286 | rndis_params *param = (rndis_params *) data; |
| 1287 | |
| 1288 | out += snprintf (out, count, |
| 1289 | "Config Nr. %d\n" |
| 1290 | "used : %s\n" |
| 1291 | "state : %s\n" |
| 1292 | "medium : 0x%08X\n" |
| 1293 | "speed : %d\n" |
| 1294 | "cable : %s\n" |
| 1295 | "vendor ID : 0x%08X\n" |
| 1296 | "vendor : %s\n", |
| 1297 | param->confignr, (param->used) ? "y" : "n", |
| 1298 | ({ char *s = "?"; |
| 1299 | switch (param->state) { |
| 1300 | case RNDIS_UNINITIALIZED: |
| 1301 | s = "RNDIS_UNINITIALIZED"; break; |
| 1302 | case RNDIS_INITIALIZED: |
| 1303 | s = "RNDIS_INITIALIZED"; break; |
| 1304 | case RNDIS_DATA_INITIALIZED: |
| 1305 | s = "RNDIS_DATA_INITIALIZED"; break; |
| 1306 | }; s; }), |
| 1307 | param->medium, |
| 1308 | (param->media_state) ? 0 : param->speed*100, |
| 1309 | (param->media_state) ? "disconnected" : "connected", |
| 1310 | param->vendorID, param->vendorDescr); |
| 1311 | |
| 1312 | len = out - page; |
| 1313 | len -= off; |
| 1314 | |
| 1315 | if (len < count) { |
| 1316 | *eof = 1; |
| 1317 | if (len <= 0) |
| 1318 | return 0; |
| 1319 | } else |
| 1320 | len = count; |
| 1321 | |
| 1322 | *start = page + off; |
| 1323 | return len; |
| 1324 | } |
| 1325 | |
| 1326 | static int rndis_proc_write (struct file *file, const char __user *buffer, |
| 1327 | unsigned long count, void *data) |
| 1328 | { |
| 1329 | rndis_params *p = data; |
| 1330 | u32 speed = 0; |
| 1331 | int i, fl_speed = 0; |
| 1332 | |
| 1333 | for (i = 0; i < count; i++) { |
| 1334 | char c; |
| 1335 | if (get_user(c, buffer)) |
| 1336 | return -EFAULT; |
| 1337 | switch (c) { |
| 1338 | case '0': |
| 1339 | case '1': |
| 1340 | case '2': |
| 1341 | case '3': |
| 1342 | case '4': |
| 1343 | case '5': |
| 1344 | case '6': |
| 1345 | case '7': |
| 1346 | case '8': |
| 1347 | case '9': |
| 1348 | fl_speed = 1; |
| 1349 | speed = speed*10 + c - '0'; |
| 1350 | break; |
| 1351 | case 'C': |
| 1352 | case 'c': |
| 1353 | rndis_signal_connect (p->confignr); |
| 1354 | break; |
| 1355 | case 'D': |
| 1356 | case 'd': |
| 1357 | rndis_signal_disconnect(p->confignr); |
| 1358 | break; |
| 1359 | default: |
| 1360 | if (fl_speed) p->speed = speed; |
| 1361 | else DEBUG ("%c is not valid\n", c); |
| 1362 | break; |
| 1363 | } |
| 1364 | |
| 1365 | buffer++; |
| 1366 | } |
| 1367 | |
| 1368 | return count; |
| 1369 | } |
| 1370 | |
| 1371 | #define NAME_TEMPLATE "driver/rndis-%03d" |
| 1372 | |
| 1373 | static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS]; |
| 1374 | |
| 1375 | #endif /* CONFIG_USB_GADGET_DEBUG_FILES */ |
| 1376 | |
| 1377 | |
| 1378 | int __init rndis_init (void) |
| 1379 | { |
| 1380 | u8 i; |
| 1381 | |
| 1382 | for (i = 0; i < RNDIS_MAX_CONFIGS; i++) { |
| 1383 | #ifdef CONFIG_USB_GADGET_DEBUG_FILES |
| 1384 | char name [20]; |
| 1385 | |
| 1386 | sprintf (name, NAME_TEMPLATE, i); |
| 1387 | if (!(rndis_connect_state [i] |
| 1388 | = create_proc_entry (name, 0660, NULL))) |
| 1389 | { |
| 1390 | DEBUG ("%s :remove entries", __FUNCTION__); |
| 1391 | while (i) { |
| 1392 | sprintf (name, NAME_TEMPLATE, --i); |
| 1393 | remove_proc_entry (name, NULL); |
| 1394 | } |
| 1395 | DEBUG ("\n"); |
| 1396 | return -EIO; |
| 1397 | } |
| 1398 | |
| 1399 | rndis_connect_state [i]->nlink = 1; |
| 1400 | rndis_connect_state [i]->write_proc = rndis_proc_write; |
| 1401 | rndis_connect_state [i]->read_proc = rndis_proc_read; |
| 1402 | rndis_connect_state [i]->data = (void *) |
| 1403 | (rndis_per_dev_params + i); |
| 1404 | #endif |
| 1405 | rndis_per_dev_params [i].confignr = i; |
| 1406 | rndis_per_dev_params [i].used = 0; |
| 1407 | rndis_per_dev_params [i].state = RNDIS_UNINITIALIZED; |
| 1408 | rndis_per_dev_params [i].media_state |
| 1409 | = NDIS_MEDIA_STATE_DISCONNECTED; |
| 1410 | INIT_LIST_HEAD (&(rndis_per_dev_params [i].resp_queue)); |
| 1411 | } |
| 1412 | |
| 1413 | return 0; |
| 1414 | } |
| 1415 | |
| 1416 | void rndis_exit (void) |
| 1417 | { |
| 1418 | #ifdef CONFIG_USB_GADGET_DEBUG_FILES |
| 1419 | u8 i; |
| 1420 | char name [20]; |
| 1421 | |
| 1422 | for (i = 0; i < RNDIS_MAX_CONFIGS; i++) { |
| 1423 | sprintf (name, NAME_TEMPLATE, i); |
| 1424 | remove_proc_entry (name, NULL); |
| 1425 | } |
| 1426 | #endif |
| 1427 | } |
| 1428 | |