Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
Vitaly Kuzmichev | 216c447 | 2011-02-11 18:18:34 +0300 | [diff] [blame] | 2 | /* |
| 3 | * RNDIS MSG parser |
| 4 | * |
| 5 | * Authors: Benedikt Spranger, Pengutronix |
| 6 | * Robert Schwebel, Pengutronix |
| 7 | * |
Vitaly Kuzmichev | 216c447 | 2011-02-11 18:18:34 +0300 | [diff] [blame] | 8 | * This software was originally developed in conformance with |
| 9 | * Microsoft's Remote NDIS Specification License Agreement. |
| 10 | * |
| 11 | * 03/12/2004 Kai-Uwe Bloem <linux-development@auerswald.de> |
| 12 | * Fixed message length bug in init_response |
| 13 | * |
| 14 | * 03/25/2004 Kai-Uwe Bloem <linux-development@auerswald.de> |
| 15 | * Fixed rndis_rm_hdr length bug. |
| 16 | * |
| 17 | * Copyright (C) 2004 by David Brownell |
| 18 | * updates to merge with Linux 2.6, better match RNDIS spec |
| 19 | */ |
| 20 | |
Simon Glass | 0f2af88 | 2020-05-10 11:40:05 -0600 | [diff] [blame] | 21 | #include <log.h> |
Vitaly Kuzmichev | 216c447 | 2011-02-11 18:18:34 +0300 | [diff] [blame] | 22 | #include <net.h> |
| 23 | #include <malloc.h> |
| 24 | #include <linux/types.h> |
| 25 | #include <linux/list.h> |
| 26 | #include <linux/netdevice.h> |
| 27 | |
| 28 | #include <asm/byteorder.h> |
| 29 | #include <asm/unaligned.h> |
Masahiro Yamada | 56a931c | 2016-09-21 11:28:55 +0900 | [diff] [blame] | 30 | #include <linux/errno.h> |
Vitaly Kuzmichev | 216c447 | 2011-02-11 18:18:34 +0300 | [diff] [blame] | 31 | |
| 32 | #undef RNDIS_PM |
| 33 | #undef RNDIS_WAKEUP |
| 34 | #undef VERBOSE |
| 35 | |
| 36 | #include "rndis.h" |
| 37 | |
Vitaly Kuzmichev | 216c447 | 2011-02-11 18:18:34 +0300 | [diff] [blame] | 38 | /* |
| 39 | * The driver for your USB chip needs to support ep0 OUT to work with |
| 40 | * RNDIS, plus all three CDC Ethernet endpoints (interrupt not optional). |
| 41 | * |
| 42 | * Windows hosts need an INF file like Documentation/usb/linux.inf |
| 43 | * and will be happier if you provide the host_addr module parameter. |
| 44 | */ |
| 45 | |
| 46 | #define RNDIS_MAX_CONFIGS 1 |
| 47 | |
| 48 | static rndis_params rndis_per_dev_params[RNDIS_MAX_CONFIGS]; |
| 49 | |
| 50 | /* Driver Version */ |
| 51 | static const __le32 rndis_driver_version = __constant_cpu_to_le32(1); |
| 52 | |
| 53 | /* Function Prototypes */ |
| 54 | static rndis_resp_t *rndis_add_response(int configNr, u32 length); |
| 55 | |
| 56 | |
| 57 | /* supported OIDs */ |
| 58 | static const u32 oid_supported_list[] = { |
| 59 | /* the general stuff */ |
| 60 | OID_GEN_SUPPORTED_LIST, |
| 61 | OID_GEN_HARDWARE_STATUS, |
| 62 | OID_GEN_MEDIA_SUPPORTED, |
| 63 | OID_GEN_MEDIA_IN_USE, |
| 64 | OID_GEN_MAXIMUM_FRAME_SIZE, |
| 65 | OID_GEN_LINK_SPEED, |
| 66 | OID_GEN_TRANSMIT_BLOCK_SIZE, |
| 67 | OID_GEN_RECEIVE_BLOCK_SIZE, |
| 68 | OID_GEN_VENDOR_ID, |
| 69 | OID_GEN_VENDOR_DESCRIPTION, |
| 70 | OID_GEN_VENDOR_DRIVER_VERSION, |
| 71 | OID_GEN_CURRENT_PACKET_FILTER, |
| 72 | OID_GEN_MAXIMUM_TOTAL_SIZE, |
| 73 | OID_GEN_MEDIA_CONNECT_STATUS, |
| 74 | OID_GEN_PHYSICAL_MEDIUM, |
| 75 | #if 0 |
| 76 | OID_GEN_RNDIS_CONFIG_PARAMETER, |
| 77 | #endif |
| 78 | |
| 79 | /* the statistical stuff */ |
| 80 | OID_GEN_XMIT_OK, |
| 81 | OID_GEN_RCV_OK, |
| 82 | OID_GEN_XMIT_ERROR, |
| 83 | OID_GEN_RCV_ERROR, |
| 84 | OID_GEN_RCV_NO_BUFFER, |
| 85 | #ifdef RNDIS_OPTIONAL_STATS |
| 86 | OID_GEN_DIRECTED_BYTES_XMIT, |
| 87 | OID_GEN_DIRECTED_FRAMES_XMIT, |
| 88 | OID_GEN_MULTICAST_BYTES_XMIT, |
| 89 | OID_GEN_MULTICAST_FRAMES_XMIT, |
| 90 | OID_GEN_BROADCAST_BYTES_XMIT, |
| 91 | OID_GEN_BROADCAST_FRAMES_XMIT, |
| 92 | OID_GEN_DIRECTED_BYTES_RCV, |
| 93 | OID_GEN_DIRECTED_FRAMES_RCV, |
| 94 | OID_GEN_MULTICAST_BYTES_RCV, |
| 95 | OID_GEN_MULTICAST_FRAMES_RCV, |
| 96 | OID_GEN_BROADCAST_BYTES_RCV, |
| 97 | OID_GEN_BROADCAST_FRAMES_RCV, |
| 98 | OID_GEN_RCV_CRC_ERROR, |
| 99 | OID_GEN_TRANSMIT_QUEUE_LENGTH, |
| 100 | #endif /* RNDIS_OPTIONAL_STATS */ |
| 101 | |
| 102 | /* mandatory 802.3 */ |
| 103 | /* the general stuff */ |
| 104 | OID_802_3_PERMANENT_ADDRESS, |
| 105 | OID_802_3_CURRENT_ADDRESS, |
| 106 | OID_802_3_MULTICAST_LIST, |
| 107 | OID_802_3_MAC_OPTIONS, |
| 108 | OID_802_3_MAXIMUM_LIST_SIZE, |
| 109 | |
| 110 | /* the statistical stuff */ |
| 111 | OID_802_3_RCV_ERROR_ALIGNMENT, |
| 112 | OID_802_3_XMIT_ONE_COLLISION, |
| 113 | OID_802_3_XMIT_MORE_COLLISIONS, |
| 114 | #ifdef RNDIS_OPTIONAL_STATS |
| 115 | OID_802_3_XMIT_DEFERRED, |
| 116 | OID_802_3_XMIT_MAX_COLLISIONS, |
| 117 | OID_802_3_RCV_OVERRUN, |
| 118 | OID_802_3_XMIT_UNDERRUN, |
| 119 | OID_802_3_XMIT_HEARTBEAT_FAILURE, |
| 120 | OID_802_3_XMIT_TIMES_CRS_LOST, |
| 121 | OID_802_3_XMIT_LATE_COLLISIONS, |
| 122 | #endif /* RNDIS_OPTIONAL_STATS */ |
| 123 | |
| 124 | #ifdef RNDIS_PM |
| 125 | /* PM and wakeup are mandatory for USB: */ |
| 126 | |
| 127 | /* power management */ |
| 128 | OID_PNP_CAPABILITIES, |
| 129 | OID_PNP_QUERY_POWER, |
| 130 | OID_PNP_SET_POWER, |
| 131 | |
| 132 | #ifdef RNDIS_WAKEUP |
| 133 | /* wake up host */ |
| 134 | OID_PNP_ENABLE_WAKE_UP, |
| 135 | OID_PNP_ADD_WAKE_UP_PATTERN, |
| 136 | OID_PNP_REMOVE_WAKE_UP_PATTERN, |
| 137 | #endif /* RNDIS_WAKEUP */ |
| 138 | #endif /* RNDIS_PM */ |
| 139 | }; |
| 140 | |
| 141 | |
| 142 | /* NDIS Functions */ |
| 143 | static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf, |
| 144 | unsigned buf_len, rndis_resp_t *r) |
| 145 | { |
| 146 | int retval = -ENOTSUPP; |
| 147 | u32 length = 4; /* usually */ |
| 148 | __le32 *outbuf; |
| 149 | int i, count; |
| 150 | rndis_query_cmplt_type *resp; |
| 151 | rndis_params *params; |
| 152 | |
| 153 | if (!r) |
| 154 | return -ENOMEM; |
| 155 | resp = (rndis_query_cmplt_type *) r->buf; |
| 156 | |
| 157 | if (!resp) |
| 158 | return -ENOMEM; |
| 159 | |
| 160 | #if defined(DEBUG) && defined(DEBUG_VERBOSE) |
| 161 | if (buf_len) { |
| 162 | debug("query OID %08x value, len %d:\n", OID, buf_len); |
| 163 | for (i = 0; i < buf_len; i += 16) { |
| 164 | debug("%03d: %08x %08x %08x %08x\n", i, |
| 165 | get_unaligned_le32(&buf[i]), |
| 166 | get_unaligned_le32(&buf[i + 4]), |
| 167 | get_unaligned_le32(&buf[i + 8]), |
| 168 | get_unaligned_le32(&buf[i + 12])); |
| 169 | } |
| 170 | } |
| 171 | #endif |
| 172 | |
| 173 | /* response goes here, right after the header */ |
| 174 | outbuf = (__le32 *) &resp[1]; |
| 175 | resp->InformationBufferOffset = __constant_cpu_to_le32(16); |
| 176 | |
| 177 | params = &rndis_per_dev_params[configNr]; |
| 178 | switch (OID) { |
| 179 | |
| 180 | /* general oids (table 4-1) */ |
| 181 | |
| 182 | /* mandatory */ |
| 183 | case OID_GEN_SUPPORTED_LIST: |
| 184 | debug("%s: OID_GEN_SUPPORTED_LIST\n", __func__); |
| 185 | length = sizeof(oid_supported_list); |
| 186 | count = length / sizeof(u32); |
| 187 | for (i = 0; i < count; i++) |
| 188 | outbuf[i] = cpu_to_le32(oid_supported_list[i]); |
| 189 | retval = 0; |
| 190 | break; |
| 191 | |
| 192 | /* mandatory */ |
| 193 | case OID_GEN_HARDWARE_STATUS: |
| 194 | debug("%s: OID_GEN_HARDWARE_STATUS\n", __func__); |
| 195 | /* |
| 196 | * Bogus question! |
| 197 | * Hardware must be ready to receive high level protocols. |
| 198 | * BTW: |
| 199 | * reddite ergo quae sunt Caesaris Caesari |
| 200 | * et quae sunt Dei Deo! |
| 201 | */ |
| 202 | *outbuf = __constant_cpu_to_le32(0); |
| 203 | retval = 0; |
| 204 | break; |
| 205 | |
| 206 | /* mandatory */ |
| 207 | case OID_GEN_MEDIA_SUPPORTED: |
| 208 | debug("%s: OID_GEN_MEDIA_SUPPORTED\n", __func__); |
| 209 | *outbuf = cpu_to_le32(params->medium); |
| 210 | retval = 0; |
| 211 | break; |
| 212 | |
| 213 | /* mandatory */ |
| 214 | case OID_GEN_MEDIA_IN_USE: |
| 215 | debug("%s: OID_GEN_MEDIA_IN_USE\n", __func__); |
| 216 | /* one medium, one transport... (maybe you do it better) */ |
| 217 | *outbuf = cpu_to_le32(params->medium); |
| 218 | retval = 0; |
| 219 | break; |
| 220 | |
| 221 | /* mandatory */ |
| 222 | case OID_GEN_MAXIMUM_FRAME_SIZE: |
| 223 | debug("%s: OID_GEN_MAXIMUM_FRAME_SIZE\n", __func__); |
| 224 | if (params->dev) { |
| 225 | *outbuf = cpu_to_le32(params->mtu); |
| 226 | retval = 0; |
| 227 | } |
| 228 | break; |
| 229 | |
| 230 | /* mandatory */ |
| 231 | case OID_GEN_LINK_SPEED: |
| 232 | #if defined(DEBUG) && defined(DEBUG_VERBOSE) |
| 233 | debug("%s: OID_GEN_LINK_SPEED\n", __func__); |
| 234 | #endif |
| 235 | if (params->media_state == NDIS_MEDIA_STATE_DISCONNECTED) |
| 236 | *outbuf = __constant_cpu_to_le32(0); |
| 237 | else |
| 238 | *outbuf = cpu_to_le32(params->speed); |
| 239 | retval = 0; |
| 240 | break; |
| 241 | |
| 242 | /* mandatory */ |
| 243 | case OID_GEN_TRANSMIT_BLOCK_SIZE: |
| 244 | debug("%s: OID_GEN_TRANSMIT_BLOCK_SIZE\n", __func__); |
| 245 | if (params->dev) { |
| 246 | *outbuf = cpu_to_le32(params->mtu); |
| 247 | retval = 0; |
| 248 | } |
| 249 | break; |
| 250 | |
| 251 | /* mandatory */ |
| 252 | case OID_GEN_RECEIVE_BLOCK_SIZE: |
| 253 | debug("%s: OID_GEN_RECEIVE_BLOCK_SIZE\n", __func__); |
| 254 | if (params->dev) { |
| 255 | *outbuf = cpu_to_le32(params->mtu); |
| 256 | retval = 0; |
| 257 | } |
| 258 | break; |
| 259 | |
| 260 | /* mandatory */ |
| 261 | case OID_GEN_VENDOR_ID: |
| 262 | debug("%s: OID_GEN_VENDOR_ID\n", __func__); |
| 263 | *outbuf = cpu_to_le32(params->vendorID); |
| 264 | retval = 0; |
| 265 | break; |
| 266 | |
| 267 | /* mandatory */ |
| 268 | case OID_GEN_VENDOR_DESCRIPTION: |
| 269 | debug("%s: OID_GEN_VENDOR_DESCRIPTION\n", __func__); |
| 270 | length = strlen(params->vendorDescr); |
| 271 | memcpy(outbuf, params->vendorDescr, length); |
| 272 | retval = 0; |
| 273 | break; |
| 274 | |
| 275 | case OID_GEN_VENDOR_DRIVER_VERSION: |
| 276 | debug("%s: OID_GEN_VENDOR_DRIVER_VERSION\n", __func__); |
| 277 | /* Created as LE */ |
| 278 | *outbuf = rndis_driver_version; |
| 279 | retval = 0; |
| 280 | break; |
| 281 | |
| 282 | /* mandatory */ |
| 283 | case OID_GEN_CURRENT_PACKET_FILTER: |
| 284 | debug("%s: OID_GEN_CURRENT_PACKET_FILTER\n", __func__); |
| 285 | *outbuf = cpu_to_le32(*params->filter); |
| 286 | retval = 0; |
| 287 | break; |
| 288 | |
| 289 | /* mandatory */ |
| 290 | case OID_GEN_MAXIMUM_TOTAL_SIZE: |
| 291 | debug("%s: OID_GEN_MAXIMUM_TOTAL_SIZE\n", __func__); |
| 292 | *outbuf = __constant_cpu_to_le32(RNDIS_MAX_TOTAL_SIZE); |
| 293 | retval = 0; |
| 294 | break; |
| 295 | |
| 296 | /* mandatory */ |
| 297 | case OID_GEN_MEDIA_CONNECT_STATUS: |
| 298 | #if defined(DEBUG) && defined(DEBUG_VERBOSE) |
| 299 | debug("%s: OID_GEN_MEDIA_CONNECT_STATUS\n", __func__); |
| 300 | #endif |
| 301 | *outbuf = cpu_to_le32(params->media_state); |
| 302 | retval = 0; |
| 303 | break; |
| 304 | |
| 305 | case OID_GEN_PHYSICAL_MEDIUM: |
| 306 | debug("%s: OID_GEN_PHYSICAL_MEDIUM\n", __func__); |
| 307 | *outbuf = __constant_cpu_to_le32(0); |
| 308 | retval = 0; |
| 309 | break; |
| 310 | |
| 311 | /* |
| 312 | * The RNDIS specification is incomplete/wrong. Some versions |
| 313 | * of MS-Windows expect OIDs that aren't specified there. Other |
| 314 | * versions emit undefined RNDIS messages. DOCUMENT ALL THESE! |
| 315 | */ |
| 316 | case OID_GEN_MAC_OPTIONS: /* from WinME */ |
| 317 | debug("%s: OID_GEN_MAC_OPTIONS\n", __func__); |
| 318 | *outbuf = __constant_cpu_to_le32( |
| 319 | NDIS_MAC_OPTION_RECEIVE_SERIALIZED |
| 320 | | NDIS_MAC_OPTION_FULL_DUPLEX); |
| 321 | retval = 0; |
| 322 | break; |
| 323 | |
| 324 | /* statistics OIDs (table 4-2) */ |
| 325 | |
| 326 | /* mandatory */ |
| 327 | case OID_GEN_XMIT_OK: |
| 328 | #if defined(DEBUG) && defined(DEBUG_VERBOSE) |
| 329 | debug("%s: OID_GEN_XMIT_OK\n", __func__); |
| 330 | #endif |
| 331 | if (params->stats) { |
| 332 | *outbuf = cpu_to_le32( |
| 333 | params->stats->tx_packets - |
| 334 | params->stats->tx_errors - |
| 335 | params->stats->tx_dropped); |
| 336 | retval = 0; |
| 337 | } |
| 338 | break; |
| 339 | |
| 340 | /* mandatory */ |
| 341 | case OID_GEN_RCV_OK: |
| 342 | #if defined(DEBUG) && defined(DEBUG_VERBOSE) |
| 343 | debug("%s: OID_GEN_RCV_OK\n", __func__); |
| 344 | #endif |
| 345 | if (params->stats) { |
| 346 | *outbuf = cpu_to_le32( |
| 347 | params->stats->rx_packets - |
| 348 | params->stats->rx_errors - |
| 349 | params->stats->rx_dropped); |
| 350 | retval = 0; |
| 351 | } |
| 352 | break; |
| 353 | |
| 354 | /* mandatory */ |
| 355 | case OID_GEN_XMIT_ERROR: |
| 356 | #if defined(DEBUG) && defined(DEBUG_VERBOSE) |
| 357 | debug("%s: OID_GEN_XMIT_ERROR\n", __func__); |
| 358 | #endif |
| 359 | if (params->stats) { |
| 360 | *outbuf = cpu_to_le32(params->stats->tx_errors); |
| 361 | retval = 0; |
| 362 | } |
| 363 | break; |
| 364 | |
| 365 | /* mandatory */ |
| 366 | case OID_GEN_RCV_ERROR: |
| 367 | #if defined(DEBUG) && defined(DEBUG_VERBOSE) |
| 368 | debug("%s: OID_GEN_RCV_ERROR\n", __func__); |
| 369 | #endif |
| 370 | if (params->stats) { |
| 371 | *outbuf = cpu_to_le32(params->stats->rx_errors); |
| 372 | retval = 0; |
| 373 | } |
| 374 | break; |
| 375 | |
| 376 | /* mandatory */ |
| 377 | case OID_GEN_RCV_NO_BUFFER: |
| 378 | debug("%s: OID_GEN_RCV_NO_BUFFER\n", __func__); |
| 379 | if (params->stats) { |
| 380 | *outbuf = cpu_to_le32(params->stats->rx_dropped); |
| 381 | retval = 0; |
| 382 | } |
| 383 | break; |
| 384 | |
| 385 | #ifdef RNDIS_OPTIONAL_STATS |
| 386 | case OID_GEN_DIRECTED_BYTES_XMIT: |
| 387 | debug("%s: OID_GEN_DIRECTED_BYTES_XMIT\n", __func__); |
| 388 | /* |
| 389 | * Aunt Tilly's size of shoes |
| 390 | * minus antarctica count of penguins |
| 391 | * divided by weight of Alpha Centauri |
| 392 | */ |
| 393 | if (params->stats) { |
| 394 | *outbuf = cpu_to_le32( |
| 395 | (params->stats->tx_packets - |
| 396 | params->stats->tx_errors - |
| 397 | params->stats->tx_dropped) |
| 398 | * 123); |
| 399 | retval = 0; |
| 400 | } |
| 401 | break; |
| 402 | |
| 403 | case OID_GEN_DIRECTED_FRAMES_XMIT: |
| 404 | debug("%s: OID_GEN_DIRECTED_FRAMES_XMIT\n", __func__); |
| 405 | /* dito */ |
| 406 | if (params->stats) { |
| 407 | *outbuf = cpu_to_le32( |
| 408 | (params->stats->tx_packets - |
| 409 | params->stats->tx_errors - |
| 410 | params->stats->tx_dropped) |
| 411 | / 123); |
| 412 | retval = 0; |
| 413 | } |
| 414 | break; |
| 415 | |
| 416 | case OID_GEN_MULTICAST_BYTES_XMIT: |
| 417 | debug("%s: OID_GEN_MULTICAST_BYTES_XMIT\n", __func__); |
| 418 | if (params->stats) { |
| 419 | *outbuf = cpu_to_le32(params->stats->multicast * 1234); |
| 420 | retval = 0; |
| 421 | } |
| 422 | break; |
| 423 | |
| 424 | case OID_GEN_MULTICAST_FRAMES_XMIT: |
| 425 | debug("%s: OID_GEN_MULTICAST_FRAMES_XMIT\n", __func__); |
| 426 | if (params->stats) { |
| 427 | *outbuf = cpu_to_le32(params->stats->multicast); |
| 428 | retval = 0; |
| 429 | } |
| 430 | break; |
| 431 | |
| 432 | case OID_GEN_BROADCAST_BYTES_XMIT: |
| 433 | debug("%s: OID_GEN_BROADCAST_BYTES_XMIT\n", __func__); |
| 434 | if (params->stats) { |
| 435 | *outbuf = cpu_to_le32(params->stats->tx_packets/42*255); |
| 436 | retval = 0; |
| 437 | } |
| 438 | break; |
| 439 | |
| 440 | case OID_GEN_BROADCAST_FRAMES_XMIT: |
| 441 | debug("%s: OID_GEN_BROADCAST_FRAMES_XMIT\n", __func__); |
| 442 | if (params->stats) { |
| 443 | *outbuf = cpu_to_le32(params->stats->tx_packets / 42); |
| 444 | retval = 0; |
| 445 | } |
| 446 | break; |
| 447 | |
| 448 | case OID_GEN_DIRECTED_BYTES_RCV: |
| 449 | debug("%s: OID_GEN_DIRECTED_BYTES_RCV\n", __func__); |
| 450 | *outbuf = __constant_cpu_to_le32(0); |
| 451 | retval = 0; |
| 452 | break; |
| 453 | |
| 454 | case OID_GEN_DIRECTED_FRAMES_RCV: |
| 455 | debug("%s: OID_GEN_DIRECTED_FRAMES_RCV\n", __func__); |
| 456 | *outbuf = __constant_cpu_to_le32(0); |
| 457 | retval = 0; |
| 458 | break; |
| 459 | |
| 460 | case OID_GEN_MULTICAST_BYTES_RCV: |
| 461 | debug("%s: OID_GEN_MULTICAST_BYTES_RCV\n", __func__); |
| 462 | if (params->stats) { |
| 463 | *outbuf = cpu_to_le32(params->stats->multicast * 1111); |
| 464 | retval = 0; |
| 465 | } |
| 466 | break; |
| 467 | |
| 468 | case OID_GEN_MULTICAST_FRAMES_RCV: |
| 469 | debug("%s: OID_GEN_MULTICAST_FRAMES_RCV\n", __func__); |
| 470 | if (params->stats) { |
| 471 | *outbuf = cpu_to_le32(params->stats->multicast); |
| 472 | retval = 0; |
| 473 | } |
| 474 | break; |
| 475 | |
| 476 | case OID_GEN_BROADCAST_BYTES_RCV: |
| 477 | debug("%s: OID_GEN_BROADCAST_BYTES_RCV\n", __func__); |
| 478 | if (params->stats) { |
| 479 | *outbuf = cpu_to_le32(params->stats->rx_packets/42*255); |
| 480 | retval = 0; |
| 481 | } |
| 482 | break; |
| 483 | |
| 484 | case OID_GEN_BROADCAST_FRAMES_RCV: |
| 485 | debug("%s: OID_GEN_BROADCAST_FRAMES_RCV\n", __func__); |
| 486 | if (params->stats) { |
| 487 | *outbuf = cpu_to_le32(params->stats->rx_packets / 42); |
| 488 | retval = 0; |
| 489 | } |
| 490 | break; |
| 491 | |
| 492 | case OID_GEN_RCV_CRC_ERROR: |
| 493 | debug("%s: OID_GEN_RCV_CRC_ERROR\n", __func__); |
| 494 | if (params->stats) { |
| 495 | *outbuf = cpu_to_le32(params->stats->rx_crc_errors); |
| 496 | retval = 0; |
| 497 | } |
| 498 | break; |
| 499 | |
| 500 | case OID_GEN_TRANSMIT_QUEUE_LENGTH: |
| 501 | debug("%s: OID_GEN_TRANSMIT_QUEUE_LENGTH\n", __func__); |
| 502 | *outbuf = __constant_cpu_to_le32(0); |
| 503 | retval = 0; |
| 504 | break; |
| 505 | #endif /* RNDIS_OPTIONAL_STATS */ |
| 506 | |
| 507 | /* ieee802.3 OIDs (table 4-3) */ |
| 508 | |
| 509 | /* mandatory */ |
| 510 | case OID_802_3_PERMANENT_ADDRESS: |
| 511 | debug("%s: OID_802_3_PERMANENT_ADDRESS\n", __func__); |
| 512 | if (params->dev) { |
| 513 | length = ETH_ALEN; |
| 514 | memcpy(outbuf, params->host_mac, length); |
| 515 | retval = 0; |
| 516 | } |
| 517 | break; |
| 518 | |
| 519 | /* mandatory */ |
| 520 | case OID_802_3_CURRENT_ADDRESS: |
| 521 | debug("%s: OID_802_3_CURRENT_ADDRESS\n", __func__); |
| 522 | if (params->dev) { |
| 523 | length = ETH_ALEN; |
| 524 | memcpy(outbuf, params->host_mac, length); |
| 525 | retval = 0; |
| 526 | } |
| 527 | break; |
| 528 | |
| 529 | /* mandatory */ |
| 530 | case OID_802_3_MULTICAST_LIST: |
| 531 | debug("%s: OID_802_3_MULTICAST_LIST\n", __func__); |
| 532 | /* Multicast base address only */ |
| 533 | *outbuf = __constant_cpu_to_le32(0xE0000000); |
| 534 | retval = 0; |
| 535 | break; |
| 536 | |
| 537 | /* mandatory */ |
| 538 | case OID_802_3_MAXIMUM_LIST_SIZE: |
| 539 | debug("%s: OID_802_3_MAXIMUM_LIST_SIZE\n", __func__); |
| 540 | /* Multicast base address only */ |
| 541 | *outbuf = __constant_cpu_to_le32(1); |
| 542 | retval = 0; |
| 543 | break; |
| 544 | |
| 545 | case OID_802_3_MAC_OPTIONS: |
| 546 | debug("%s: OID_802_3_MAC_OPTIONS\n", __func__); |
| 547 | break; |
| 548 | |
| 549 | /* ieee802.3 statistics OIDs (table 4-4) */ |
| 550 | |
| 551 | /* mandatory */ |
| 552 | case OID_802_3_RCV_ERROR_ALIGNMENT: |
| 553 | debug("%s: OID_802_3_RCV_ERROR_ALIGNMENT\n", __func__); |
| 554 | if (params->stats) { |
| 555 | *outbuf = cpu_to_le32(params->stats->rx_frame_errors); |
| 556 | retval = 0; |
| 557 | } |
| 558 | break; |
| 559 | |
| 560 | /* mandatory */ |
| 561 | case OID_802_3_XMIT_ONE_COLLISION: |
| 562 | debug("%s: OID_802_3_XMIT_ONE_COLLISION\n", __func__); |
| 563 | *outbuf = __constant_cpu_to_le32(0); |
| 564 | retval = 0; |
| 565 | break; |
| 566 | |
| 567 | /* mandatory */ |
| 568 | case OID_802_3_XMIT_MORE_COLLISIONS: |
| 569 | debug("%s: OID_802_3_XMIT_MORE_COLLISIONS\n", __func__); |
| 570 | *outbuf = __constant_cpu_to_le32(0); |
| 571 | retval = 0; |
| 572 | break; |
| 573 | |
| 574 | #ifdef RNDIS_OPTIONAL_STATS |
| 575 | case OID_802_3_XMIT_DEFERRED: |
| 576 | debug("%s: OID_802_3_XMIT_DEFERRED\n", __func__); |
| 577 | /* TODO */ |
| 578 | break; |
| 579 | |
| 580 | case OID_802_3_XMIT_MAX_COLLISIONS: |
| 581 | debug("%s: OID_802_3_XMIT_MAX_COLLISIONS\n", __func__); |
| 582 | /* TODO */ |
| 583 | break; |
| 584 | |
| 585 | case OID_802_3_RCV_OVERRUN: |
| 586 | debug("%s: OID_802_3_RCV_OVERRUN\n", __func__); |
| 587 | /* TODO */ |
| 588 | break; |
| 589 | |
| 590 | case OID_802_3_XMIT_UNDERRUN: |
| 591 | debug("%s: OID_802_3_XMIT_UNDERRUN\n", __func__); |
| 592 | /* TODO */ |
| 593 | break; |
| 594 | |
| 595 | case OID_802_3_XMIT_HEARTBEAT_FAILURE: |
| 596 | debug("%s: OID_802_3_XMIT_HEARTBEAT_FAILURE\n", __func__); |
| 597 | /* TODO */ |
| 598 | break; |
| 599 | |
| 600 | case OID_802_3_XMIT_TIMES_CRS_LOST: |
| 601 | debug("%s: OID_802_3_XMIT_TIMES_CRS_LOST\n", __func__); |
| 602 | /* TODO */ |
| 603 | break; |
| 604 | |
| 605 | case OID_802_3_XMIT_LATE_COLLISIONS: |
| 606 | debug("%s: OID_802_3_XMIT_LATE_COLLISIONS\n", __func__); |
| 607 | /* TODO */ |
| 608 | break; |
| 609 | #endif /* RNDIS_OPTIONAL_STATS */ |
| 610 | |
| 611 | #ifdef RNDIS_PM |
| 612 | /* power management OIDs (table 4-5) */ |
| 613 | case OID_PNP_CAPABILITIES: |
| 614 | debug("%s: OID_PNP_CAPABILITIES\n", __func__); |
| 615 | |
| 616 | /* for now, no wakeup capabilities */ |
| 617 | length = sizeof(struct NDIS_PNP_CAPABILITIES); |
| 618 | memset(outbuf, 0, length); |
| 619 | retval = 0; |
| 620 | break; |
| 621 | case OID_PNP_QUERY_POWER: |
| 622 | debug("%s: OID_PNP_QUERY_POWER D%d\n", __func__, |
| 623 | get_unaligned_le32(buf) - 1); |
| 624 | /* |
| 625 | * only suspend is a real power state, and |
| 626 | * it can't be entered by OID_PNP_SET_POWER... |
| 627 | */ |
| 628 | length = 0; |
| 629 | retval = 0; |
| 630 | break; |
| 631 | #endif |
| 632 | |
| 633 | default: |
| 634 | debug("%s: query unknown OID 0x%08X\n", __func__, OID); |
| 635 | } |
| 636 | if (retval < 0) |
| 637 | length = 0; |
| 638 | |
| 639 | resp->InformationBufferLength = cpu_to_le32(length); |
| 640 | r->length = length + sizeof *resp; |
| 641 | resp->MessageLength = cpu_to_le32(r->length); |
| 642 | return retval; |
| 643 | } |
| 644 | |
| 645 | static int gen_ndis_set_resp(u8 configNr, u32 OID, u8 *buf, u32 buf_len, |
| 646 | rndis_resp_t *r) |
| 647 | { |
| 648 | rndis_set_cmplt_type *resp; |
| 649 | int retval = -ENOTSUPP; |
| 650 | struct rndis_params *params; |
| 651 | #if (defined(DEBUG) && defined(DEBUG_VERBOSE)) || defined(RNDIS_PM) |
| 652 | int i; |
| 653 | #endif |
| 654 | |
| 655 | if (!r) |
| 656 | return -ENOMEM; |
| 657 | resp = (rndis_set_cmplt_type *) r->buf; |
| 658 | if (!resp) |
| 659 | return -ENOMEM; |
| 660 | |
| 661 | #if defined(DEBUG) && defined(DEBUG_VERBOSE) |
| 662 | if (buf_len) { |
| 663 | debug("set OID %08x value, len %d:\n", OID, buf_len); |
| 664 | for (i = 0; i < buf_len; i += 16) { |
| 665 | debug("%03d: %08x %08x %08x %08x\n", i, |
| 666 | get_unaligned_le32(&buf[i]), |
| 667 | get_unaligned_le32(&buf[i + 4]), |
| 668 | get_unaligned_le32(&buf[i + 8]), |
| 669 | get_unaligned_le32(&buf[i + 12])); |
| 670 | } |
| 671 | } |
| 672 | #endif |
| 673 | |
| 674 | params = &rndis_per_dev_params[configNr]; |
| 675 | switch (OID) { |
| 676 | case OID_GEN_CURRENT_PACKET_FILTER: |
| 677 | |
| 678 | /* |
| 679 | * these NDIS_PACKET_TYPE_* bitflags are shared with |
| 680 | * cdc_filter; it's not RNDIS-specific |
| 681 | * NDIS_PACKET_TYPE_x == USB_CDC_PACKET_TYPE_x for x in: |
| 682 | * PROMISCUOUS, DIRECTED, |
| 683 | * MULTICAST, ALL_MULTICAST, BROADCAST |
| 684 | */ |
| 685 | *params->filter = (u16) get_unaligned_le32(buf); |
| 686 | debug("%s: OID_GEN_CURRENT_PACKET_FILTER %08x\n", |
| 687 | __func__, *params->filter); |
| 688 | |
| 689 | /* |
| 690 | * this call has a significant side effect: it's |
| 691 | * what makes the packet flow start and stop, like |
| 692 | * activating the CDC Ethernet altsetting. |
| 693 | */ |
| 694 | #ifdef RNDIS_PM |
| 695 | update_linkstate: |
| 696 | #endif |
| 697 | retval = 0; |
| 698 | if (*params->filter) |
| 699 | params->state = RNDIS_DATA_INITIALIZED; |
| 700 | else |
| 701 | params->state = RNDIS_INITIALIZED; |
| 702 | break; |
| 703 | |
| 704 | case OID_802_3_MULTICAST_LIST: |
| 705 | /* I think we can ignore this */ |
| 706 | debug("%s: OID_802_3_MULTICAST_LIST\n", __func__); |
| 707 | retval = 0; |
| 708 | break; |
| 709 | #if 0 |
| 710 | case OID_GEN_RNDIS_CONFIG_PARAMETER: |
| 711 | { |
| 712 | struct rndis_config_parameter *param; |
| 713 | param = (struct rndis_config_parameter *) buf; |
| 714 | debug("%s: OID_GEN_RNDIS_CONFIG_PARAMETER '%*s'\n", |
| 715 | __func__, |
| 716 | min(cpu_to_le32(param->ParameterNameLength), 80), |
| 717 | buf + param->ParameterNameOffset); |
| 718 | retval = 0; |
| 719 | } |
| 720 | break; |
| 721 | #endif |
| 722 | |
| 723 | #ifdef RNDIS_PM |
| 724 | case OID_PNP_SET_POWER: |
| 725 | /* |
| 726 | * The only real power state is USB suspend, and RNDIS requests |
| 727 | * can't enter it; this one isn't really about power. After |
| 728 | * resuming, Windows forces a reset, and then SET_POWER D0. |
| 729 | * FIXME ... then things go batty; Windows wedges itself. |
| 730 | */ |
| 731 | i = get_unaligned_le32(buf); |
| 732 | debug("%s: OID_PNP_SET_POWER D%d\n", __func__, i - 1); |
| 733 | switch (i) { |
| 734 | case NdisDeviceStateD0: |
| 735 | *params->filter = params->saved_filter; |
| 736 | goto update_linkstate; |
| 737 | case NdisDeviceStateD3: |
| 738 | case NdisDeviceStateD2: |
| 739 | case NdisDeviceStateD1: |
| 740 | params->saved_filter = *params->filter; |
| 741 | retval = 0; |
| 742 | break; |
| 743 | } |
| 744 | break; |
| 745 | |
| 746 | #ifdef RNDIS_WAKEUP |
| 747 | /* |
| 748 | * no wakeup support advertised, so wakeup OIDs always fail: |
| 749 | * - OID_PNP_ENABLE_WAKE_UP |
| 750 | * - OID_PNP_{ADD,REMOVE}_WAKE_UP_PATTERN |
| 751 | */ |
| 752 | #endif |
| 753 | |
| 754 | #endif /* RNDIS_PM */ |
| 755 | |
| 756 | default: |
| 757 | debug("%s: set unknown OID 0x%08X, size %d\n", |
| 758 | __func__, OID, buf_len); |
| 759 | } |
| 760 | |
| 761 | return retval; |
| 762 | } |
| 763 | |
| 764 | /* |
| 765 | * Response Functions |
| 766 | */ |
| 767 | |
| 768 | static int rndis_init_response(int configNr, rndis_init_msg_type *buf) |
| 769 | { |
| 770 | rndis_init_cmplt_type *resp; |
| 771 | rndis_resp_t *r; |
| 772 | |
| 773 | if (!rndis_per_dev_params[configNr].dev) |
| 774 | return -ENOTSUPP; |
| 775 | |
| 776 | r = rndis_add_response(configNr, sizeof(rndis_init_cmplt_type)); |
| 777 | if (!r) |
| 778 | return -ENOMEM; |
| 779 | resp = (rndis_init_cmplt_type *) r->buf; |
| 780 | |
| 781 | resp->MessageType = __constant_cpu_to_le32( |
| 782 | REMOTE_NDIS_INITIALIZE_CMPLT); |
| 783 | resp->MessageLength = __constant_cpu_to_le32(52); |
| 784 | resp->RequestID = get_unaligned(&buf->RequestID); /* Still LE in msg buffer */ |
| 785 | resp->Status = __constant_cpu_to_le32(RNDIS_STATUS_SUCCESS); |
| 786 | resp->MajorVersion = __constant_cpu_to_le32(RNDIS_MAJOR_VERSION); |
| 787 | resp->MinorVersion = __constant_cpu_to_le32(RNDIS_MINOR_VERSION); |
| 788 | resp->DeviceFlags = __constant_cpu_to_le32(RNDIS_DF_CONNECTIONLESS); |
| 789 | resp->Medium = __constant_cpu_to_le32(RNDIS_MEDIUM_802_3); |
| 790 | resp->MaxPacketsPerTransfer = __constant_cpu_to_le32(1); |
| 791 | resp->MaxTransferSize = cpu_to_le32( |
| 792 | rndis_per_dev_params[configNr].mtu |
| 793 | + ETHER_HDR_SIZE |
| 794 | + sizeof(struct rndis_packet_msg_type) |
| 795 | + 22); |
| 796 | resp->PacketAlignmentFactor = __constant_cpu_to_le32(0); |
| 797 | resp->AFListOffset = __constant_cpu_to_le32(0); |
| 798 | resp->AFListSize = __constant_cpu_to_le32(0); |
| 799 | |
| 800 | if (rndis_per_dev_params[configNr].ack) |
| 801 | rndis_per_dev_params[configNr].ack( |
| 802 | rndis_per_dev_params[configNr].dev); |
| 803 | |
| 804 | return 0; |
| 805 | } |
| 806 | |
| 807 | static int rndis_query_response(int configNr, rndis_query_msg_type *buf) |
| 808 | { |
| 809 | rndis_query_cmplt_type *resp; |
| 810 | rndis_resp_t *r; |
| 811 | |
| 812 | debug("%s: OID = %08X\n", __func__, get_unaligned_le32(&buf->OID)); |
| 813 | if (!rndis_per_dev_params[configNr].dev) |
| 814 | return -ENOTSUPP; |
| 815 | |
| 816 | /* |
| 817 | * we need more memory: |
| 818 | * gen_ndis_query_resp expects enough space for |
| 819 | * rndis_query_cmplt_type followed by data. |
| 820 | * oid_supported_list is the largest data reply |
| 821 | */ |
| 822 | r = rndis_add_response(configNr, |
| 823 | sizeof(oid_supported_list) + sizeof(rndis_query_cmplt_type)); |
| 824 | if (!r) |
| 825 | return -ENOMEM; |
| 826 | resp = (rndis_query_cmplt_type *) r->buf; |
| 827 | |
| 828 | resp->MessageType = __constant_cpu_to_le32(REMOTE_NDIS_QUERY_CMPLT); |
| 829 | resp->RequestID = get_unaligned(&buf->RequestID); /* Still LE in msg buffer */ |
| 830 | |
| 831 | if (gen_ndis_query_resp(configNr, get_unaligned_le32(&buf->OID), |
| 832 | get_unaligned_le32(&buf->InformationBufferOffset) |
| 833 | + 8 + (u8 *) buf, |
| 834 | get_unaligned_le32(&buf->InformationBufferLength), |
| 835 | r)) { |
| 836 | /* OID not supported */ |
| 837 | resp->Status = __constant_cpu_to_le32( |
| 838 | RNDIS_STATUS_NOT_SUPPORTED); |
| 839 | resp->MessageLength = __constant_cpu_to_le32(sizeof *resp); |
| 840 | resp->InformationBufferLength = __constant_cpu_to_le32(0); |
| 841 | resp->InformationBufferOffset = __constant_cpu_to_le32(0); |
| 842 | } else |
| 843 | resp->Status = __constant_cpu_to_le32(RNDIS_STATUS_SUCCESS); |
| 844 | |
| 845 | if (rndis_per_dev_params[configNr].ack) |
| 846 | rndis_per_dev_params[configNr].ack( |
| 847 | rndis_per_dev_params[configNr].dev); |
| 848 | return 0; |
| 849 | } |
| 850 | |
| 851 | static int rndis_set_response(int configNr, rndis_set_msg_type *buf) |
| 852 | { |
| 853 | u32 BufLength, BufOffset; |
| 854 | rndis_set_cmplt_type *resp; |
| 855 | rndis_resp_t *r; |
| 856 | |
Szymon Heidrich | dd1c455 | 2022-12-05 10:28:23 +0100 | [diff] [blame] | 857 | BufLength = get_unaligned_le32(&buf->InformationBufferLength); |
| 858 | BufOffset = get_unaligned_le32(&buf->InformationBufferOffset); |
| 859 | if ((BufOffset > RNDIS_MAX_TOTAL_SIZE - 8) || |
| 860 | (BufLength > RNDIS_MAX_TOTAL_SIZE - 8 - BufOffset)) |
| 861 | return -EINVAL; |
| 862 | |
Vitaly Kuzmichev | 216c447 | 2011-02-11 18:18:34 +0300 | [diff] [blame] | 863 | r = rndis_add_response(configNr, sizeof(rndis_set_cmplt_type)); |
| 864 | if (!r) |
| 865 | return -ENOMEM; |
| 866 | resp = (rndis_set_cmplt_type *) r->buf; |
| 867 | |
Vitaly Kuzmichev | 216c447 | 2011-02-11 18:18:34 +0300 | [diff] [blame] | 868 | #ifdef VERBOSE |
| 869 | debug("%s: Length: %d\n", __func__, BufLength); |
| 870 | debug("%s: Offset: %d\n", __func__, BufOffset); |
| 871 | debug("%s: InfoBuffer: ", __func__); |
| 872 | |
| 873 | for (i = 0; i < BufLength; i++) |
| 874 | debug("%02x ", *(((u8 *) buf) + i + 8 + BufOffset)); |
| 875 | |
| 876 | debug("\n"); |
| 877 | #endif |
| 878 | |
| 879 | resp->MessageType = __constant_cpu_to_le32(REMOTE_NDIS_SET_CMPLT); |
| 880 | resp->MessageLength = __constant_cpu_to_le32(16); |
| 881 | resp->RequestID = get_unaligned(&buf->RequestID); /* Still LE in msg buffer */ |
| 882 | if (gen_ndis_set_resp(configNr, get_unaligned_le32(&buf->OID), |
| 883 | ((u8 *) buf) + 8 + BufOffset, BufLength, r)) |
| 884 | resp->Status = __constant_cpu_to_le32( |
| 885 | RNDIS_STATUS_NOT_SUPPORTED); |
| 886 | else |
| 887 | resp->Status = __constant_cpu_to_le32(RNDIS_STATUS_SUCCESS); |
| 888 | |
| 889 | if (rndis_per_dev_params[configNr].ack) |
| 890 | rndis_per_dev_params[configNr].ack( |
| 891 | rndis_per_dev_params[configNr].dev); |
| 892 | |
| 893 | return 0; |
| 894 | } |
| 895 | |
| 896 | static int rndis_reset_response(int configNr, rndis_reset_msg_type *buf) |
| 897 | { |
| 898 | rndis_reset_cmplt_type *resp; |
| 899 | rndis_resp_t *r; |
| 900 | |
| 901 | r = rndis_add_response(configNr, sizeof(rndis_reset_cmplt_type)); |
| 902 | if (!r) |
| 903 | return -ENOMEM; |
| 904 | resp = (rndis_reset_cmplt_type *) r->buf; |
| 905 | |
| 906 | resp->MessageType = __constant_cpu_to_le32(REMOTE_NDIS_RESET_CMPLT); |
| 907 | resp->MessageLength = __constant_cpu_to_le32(16); |
| 908 | resp->Status = __constant_cpu_to_le32(RNDIS_STATUS_SUCCESS); |
| 909 | /* resent information */ |
| 910 | resp->AddressingReset = __constant_cpu_to_le32(1); |
| 911 | |
| 912 | if (rndis_per_dev_params[configNr].ack) |
| 913 | rndis_per_dev_params[configNr].ack( |
| 914 | rndis_per_dev_params[configNr].dev); |
| 915 | |
| 916 | return 0; |
| 917 | } |
| 918 | |
| 919 | static int rndis_keepalive_response(int configNr, |
| 920 | rndis_keepalive_msg_type *buf) |
| 921 | { |
| 922 | rndis_keepalive_cmplt_type *resp; |
| 923 | rndis_resp_t *r; |
| 924 | |
| 925 | /* host "should" check only in RNDIS_DATA_INITIALIZED state */ |
| 926 | |
| 927 | r = rndis_add_response(configNr, sizeof(rndis_keepalive_cmplt_type)); |
| 928 | if (!r) |
| 929 | return -ENOMEM; |
| 930 | resp = (rndis_keepalive_cmplt_type *) r->buf; |
| 931 | |
| 932 | resp->MessageType = __constant_cpu_to_le32( |
| 933 | REMOTE_NDIS_KEEPALIVE_CMPLT); |
| 934 | resp->MessageLength = __constant_cpu_to_le32(16); |
| 935 | resp->RequestID = get_unaligned(&buf->RequestID); /* Still LE in msg buffer */ |
| 936 | resp->Status = __constant_cpu_to_le32(RNDIS_STATUS_SUCCESS); |
| 937 | |
| 938 | if (rndis_per_dev_params[configNr].ack) |
| 939 | rndis_per_dev_params[configNr].ack( |
| 940 | rndis_per_dev_params[configNr].dev); |
| 941 | |
| 942 | return 0; |
| 943 | } |
| 944 | |
| 945 | |
| 946 | /* |
| 947 | * Device to Host Comunication |
| 948 | */ |
| 949 | static int rndis_indicate_status_msg(int configNr, u32 status) |
| 950 | { |
| 951 | rndis_indicate_status_msg_type *resp; |
| 952 | rndis_resp_t *r; |
| 953 | |
| 954 | if (rndis_per_dev_params[configNr].state == RNDIS_UNINITIALIZED) |
| 955 | return -ENOTSUPP; |
| 956 | |
| 957 | r = rndis_add_response(configNr, |
| 958 | sizeof(rndis_indicate_status_msg_type)); |
| 959 | if (!r) |
| 960 | return -ENOMEM; |
| 961 | resp = (rndis_indicate_status_msg_type *) r->buf; |
| 962 | |
| 963 | resp->MessageType = __constant_cpu_to_le32( |
| 964 | REMOTE_NDIS_INDICATE_STATUS_MSG); |
| 965 | resp->MessageLength = __constant_cpu_to_le32(20); |
| 966 | resp->Status = cpu_to_le32(status); |
| 967 | resp->StatusBufferLength = __constant_cpu_to_le32(0); |
| 968 | resp->StatusBufferOffset = __constant_cpu_to_le32(0); |
| 969 | |
| 970 | if (rndis_per_dev_params[configNr].ack) |
| 971 | rndis_per_dev_params[configNr].ack( |
| 972 | rndis_per_dev_params[configNr].dev); |
| 973 | return 0; |
| 974 | } |
| 975 | |
| 976 | int rndis_signal_connect(int configNr) |
| 977 | { |
| 978 | rndis_per_dev_params[configNr].media_state |
| 979 | = NDIS_MEDIA_STATE_CONNECTED; |
| 980 | return rndis_indicate_status_msg(configNr, |
| 981 | RNDIS_STATUS_MEDIA_CONNECT); |
| 982 | } |
| 983 | |
| 984 | int rndis_signal_disconnect(int configNr) |
| 985 | { |
| 986 | rndis_per_dev_params[configNr].media_state |
| 987 | = NDIS_MEDIA_STATE_DISCONNECTED; |
| 988 | |
Vitaly Kuzmichev | 3433c33 | 2011-02-11 18:18:35 +0300 | [diff] [blame] | 989 | #ifdef RNDIS_COMPLETE_SIGNAL_DISCONNECT |
| 990 | return rndis_indicate_status_msg(configNr, |
| 991 | RNDIS_STATUS_MEDIA_DISCONNECT); |
| 992 | #else |
Vitaly Kuzmichev | 216c447 | 2011-02-11 18:18:34 +0300 | [diff] [blame] | 993 | return 0; |
Vitaly Kuzmichev | 3433c33 | 2011-02-11 18:18:35 +0300 | [diff] [blame] | 994 | #endif |
Vitaly Kuzmichev | 216c447 | 2011-02-11 18:18:34 +0300 | [diff] [blame] | 995 | } |
| 996 | |
| 997 | void rndis_uninit(int configNr) |
| 998 | { |
| 999 | u8 *buf; |
| 1000 | u32 length; |
| 1001 | |
| 1002 | if (configNr >= RNDIS_MAX_CONFIGS) |
| 1003 | return; |
| 1004 | rndis_per_dev_params[configNr].used = 0; |
| 1005 | rndis_per_dev_params[configNr].state = RNDIS_UNINITIALIZED; |
| 1006 | |
| 1007 | /* drain the response queue */ |
| 1008 | while ((buf = rndis_get_next_response(configNr, &length))) |
| 1009 | rndis_free_response(configNr, buf); |
| 1010 | } |
| 1011 | |
| 1012 | void rndis_set_host_mac(int configNr, const u8 *addr) |
| 1013 | { |
| 1014 | rndis_per_dev_params[configNr].host_mac = addr; |
| 1015 | } |
| 1016 | |
| 1017 | enum rndis_state rndis_get_state(int configNr) |
| 1018 | { |
| 1019 | if (configNr >= RNDIS_MAX_CONFIGS || configNr < 0) |
| 1020 | return -ENOTSUPP; |
| 1021 | return rndis_per_dev_params[configNr].state; |
| 1022 | } |
| 1023 | |
| 1024 | /* |
| 1025 | * Message Parser |
| 1026 | */ |
| 1027 | int rndis_msg_parser(u8 configNr, u8 *buf) |
| 1028 | { |
| 1029 | u32 MsgType, MsgLength; |
| 1030 | __le32 *tmp; |
| 1031 | struct rndis_params *params; |
| 1032 | |
| 1033 | debug("%s: configNr = %d, %p\n", __func__, configNr, buf); |
| 1034 | |
| 1035 | if (!buf) |
| 1036 | return -ENOMEM; |
| 1037 | |
| 1038 | tmp = (__le32 *) buf; |
| 1039 | MsgType = get_unaligned_le32(tmp++); |
| 1040 | MsgLength = get_unaligned_le32(tmp++); |
| 1041 | |
| 1042 | if (configNr >= RNDIS_MAX_CONFIGS) |
| 1043 | return -ENOTSUPP; |
| 1044 | params = &rndis_per_dev_params[configNr]; |
| 1045 | |
| 1046 | /* |
| 1047 | * NOTE: RNDIS is *EXTREMELY* chatty ... Windows constantly polls for |
| 1048 | * rx/tx statistics and link status, in addition to KEEPALIVE traffic |
| 1049 | * and normal HC level polling to see if there's any IN traffic. |
| 1050 | */ |
| 1051 | |
| 1052 | /* For USB: responses may take up to 10 seconds */ |
| 1053 | switch (MsgType) { |
| 1054 | case REMOTE_NDIS_INITIALIZE_MSG: |
| 1055 | debug("%s: REMOTE_NDIS_INITIALIZE_MSG\n", __func__); |
| 1056 | params->state = RNDIS_INITIALIZED; |
| 1057 | return rndis_init_response(configNr, |
| 1058 | (rndis_init_msg_type *) buf); |
| 1059 | |
| 1060 | case REMOTE_NDIS_HALT_MSG: |
| 1061 | debug("%s: REMOTE_NDIS_HALT_MSG\n", __func__); |
| 1062 | params->state = RNDIS_UNINITIALIZED; |
| 1063 | return 0; |
| 1064 | |
| 1065 | case REMOTE_NDIS_QUERY_MSG: |
| 1066 | return rndis_query_response(configNr, |
| 1067 | (rndis_query_msg_type *) buf); |
| 1068 | |
| 1069 | case REMOTE_NDIS_SET_MSG: |
| 1070 | return rndis_set_response(configNr, |
| 1071 | (rndis_set_msg_type *) buf); |
| 1072 | |
| 1073 | case REMOTE_NDIS_RESET_MSG: |
| 1074 | debug("%s: REMOTE_NDIS_RESET_MSG\n", __func__); |
| 1075 | return rndis_reset_response(configNr, |
| 1076 | (rndis_reset_msg_type *) buf); |
| 1077 | |
| 1078 | case REMOTE_NDIS_KEEPALIVE_MSG: |
| 1079 | /* For USB: host does this every 5 seconds */ |
| 1080 | #if defined(DEBUG) && defined(DEBUG_VERBOSE) |
| 1081 | debug("%s: REMOTE_NDIS_KEEPALIVE_MSG\n", __func__); |
| 1082 | #endif |
| 1083 | return rndis_keepalive_response(configNr, |
| 1084 | (rndis_keepalive_msg_type *) buf); |
| 1085 | |
| 1086 | default: |
| 1087 | /* |
| 1088 | * At least Windows XP emits some undefined RNDIS messages. |
| 1089 | * In one case those messages seemed to relate to the host |
| 1090 | * suspending itself. |
| 1091 | */ |
| 1092 | debug("%s: unknown RNDIS message 0x%08X len %d\n", |
| 1093 | __func__ , MsgType, MsgLength); |
| 1094 | { |
| 1095 | unsigned i; |
| 1096 | for (i = 0; i < MsgLength; i += 16) { |
| 1097 | debug("%03d: " |
| 1098 | " %02x %02x %02x %02x" |
| 1099 | " %02x %02x %02x %02x" |
| 1100 | " %02x %02x %02x %02x" |
| 1101 | " %02x %02x %02x %02x" |
| 1102 | "\n", |
| 1103 | i, |
| 1104 | buf[i], buf[i+1], |
| 1105 | buf[i+2], buf[i+3], |
| 1106 | buf[i+4], buf[i+5], |
| 1107 | buf[i+6], buf[i+7], |
| 1108 | buf[i+8], buf[i+9], |
| 1109 | buf[i+10], buf[i+11], |
| 1110 | buf[i+12], buf[i+13], |
| 1111 | buf[i+14], buf[i+15]); |
| 1112 | } |
| 1113 | } |
| 1114 | break; |
| 1115 | } |
| 1116 | |
| 1117 | return -ENOTSUPP; |
| 1118 | } |
| 1119 | |
Mugunthan V N | 095b761 | 2016-11-18 11:09:15 +0530 | [diff] [blame] | 1120 | int rndis_register(int (*rndis_control_ack)(struct udevice *)) |
Vitaly Kuzmichev | 216c447 | 2011-02-11 18:18:34 +0300 | [diff] [blame] | 1121 | { |
| 1122 | u8 i; |
| 1123 | |
| 1124 | for (i = 0; i < RNDIS_MAX_CONFIGS; i++) { |
| 1125 | if (!rndis_per_dev_params[i].used) { |
| 1126 | rndis_per_dev_params[i].used = 1; |
| 1127 | rndis_per_dev_params[i].ack = rndis_control_ack; |
| 1128 | debug("%s: configNr = %d\n", __func__, i); |
| 1129 | return i; |
| 1130 | } |
| 1131 | } |
| 1132 | debug("%s failed\n", __func__); |
| 1133 | |
| 1134 | return -1; |
| 1135 | } |
| 1136 | |
| 1137 | void rndis_deregister(int configNr) |
| 1138 | { |
| 1139 | debug("%s: configNr = %d\n", __func__, configNr); |
| 1140 | |
| 1141 | if (configNr >= RNDIS_MAX_CONFIGS) |
| 1142 | return; |
| 1143 | rndis_per_dev_params[configNr].used = 0; |
| 1144 | |
| 1145 | return; |
| 1146 | } |
| 1147 | |
Mugunthan V N | 095b761 | 2016-11-18 11:09:15 +0530 | [diff] [blame] | 1148 | int rndis_set_param_dev(u8 configNr, struct udevice *dev, int mtu, |
| 1149 | struct net_device_stats *stats, u16 *cdc_filter) |
Vitaly Kuzmichev | 216c447 | 2011-02-11 18:18:34 +0300 | [diff] [blame] | 1150 | { |
| 1151 | debug("%s: configNr = %d\n", __func__, configNr); |
| 1152 | if (!dev || !stats) |
| 1153 | return -1; |
| 1154 | if (configNr >= RNDIS_MAX_CONFIGS) |
| 1155 | return -1; |
| 1156 | |
| 1157 | rndis_per_dev_params[configNr].dev = dev; |
| 1158 | rndis_per_dev_params[configNr].stats = stats; |
| 1159 | rndis_per_dev_params[configNr].mtu = mtu; |
| 1160 | rndis_per_dev_params[configNr].filter = cdc_filter; |
| 1161 | |
| 1162 | return 0; |
| 1163 | } |
| 1164 | |
| 1165 | int rndis_set_param_vendor(u8 configNr, u32 vendorID, const char *vendorDescr) |
| 1166 | { |
| 1167 | debug("%s: configNr = %d\n", __func__, configNr); |
| 1168 | if (!vendorDescr) |
| 1169 | return -1; |
| 1170 | if (configNr >= RNDIS_MAX_CONFIGS) |
| 1171 | return -1; |
| 1172 | |
| 1173 | rndis_per_dev_params[configNr].vendorID = vendorID; |
| 1174 | rndis_per_dev_params[configNr].vendorDescr = vendorDescr; |
| 1175 | |
| 1176 | return 0; |
| 1177 | } |
| 1178 | |
| 1179 | int rndis_set_param_medium(u8 configNr, u32 medium, u32 speed) |
| 1180 | { |
| 1181 | debug("%s: configNr = %d, %u %u\n", __func__, configNr, medium, speed); |
| 1182 | if (configNr >= RNDIS_MAX_CONFIGS) |
| 1183 | return -1; |
| 1184 | |
| 1185 | rndis_per_dev_params[configNr].medium = medium; |
| 1186 | rndis_per_dev_params[configNr].speed = speed; |
| 1187 | |
| 1188 | return 0; |
| 1189 | } |
| 1190 | |
| 1191 | void rndis_add_hdr(void *buf, int length) |
| 1192 | { |
| 1193 | struct rndis_packet_msg_type *header; |
| 1194 | |
| 1195 | header = buf; |
| 1196 | memset(header, 0, sizeof *header); |
| 1197 | header->MessageType = __constant_cpu_to_le32(REMOTE_NDIS_PACKET_MSG); |
| 1198 | header->MessageLength = cpu_to_le32(length + sizeof *header); |
| 1199 | header->DataOffset = __constant_cpu_to_le32(36); |
| 1200 | header->DataLength = cpu_to_le32(length); |
| 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 | free(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) |
| 1225 | return NULL; |
| 1226 | |
| 1227 | list_for_each_safe(act, tmp, |
| 1228 | &(rndis_per_dev_params[configNr].resp_queue)) |
| 1229 | { |
| 1230 | r = list_entry(act, rndis_resp_t, list); |
| 1231 | if (!r->send) { |
| 1232 | r->send = 1; |
| 1233 | *length = r->length; |
| 1234 | return r->buf; |
| 1235 | } |
| 1236 | } |
| 1237 | |
| 1238 | return NULL; |
| 1239 | } |
| 1240 | |
| 1241 | static rndis_resp_t *rndis_add_response(int configNr, u32 length) |
| 1242 | { |
| 1243 | rndis_resp_t *r; |
| 1244 | |
| 1245 | /* NOTE: this gets copied into ether.c USB_BUFSIZ bytes ... */ |
| 1246 | r = malloc(sizeof(rndis_resp_t) + length); |
| 1247 | if (!r) |
| 1248 | return NULL; |
| 1249 | |
| 1250 | r->buf = (u8 *) (r + 1); |
| 1251 | r->length = length; |
| 1252 | r->send = 0; |
| 1253 | |
| 1254 | list_add_tail(&r->list, |
| 1255 | &(rndis_per_dev_params[configNr].resp_queue)); |
| 1256 | return r; |
| 1257 | } |
| 1258 | |
| 1259 | int rndis_rm_hdr(void *buf, int length) |
| 1260 | { |
| 1261 | /* tmp points to a struct rndis_packet_msg_type */ |
| 1262 | __le32 *tmp = buf; |
| 1263 | int offs, len; |
| 1264 | |
| 1265 | /* MessageType, MessageLength */ |
| 1266 | if (__constant_cpu_to_le32(REMOTE_NDIS_PACKET_MSG) |
| 1267 | != get_unaligned(tmp++)) |
| 1268 | return -EINVAL; |
| 1269 | tmp++; |
| 1270 | |
| 1271 | /* DataOffset, DataLength */ |
| 1272 | offs = get_unaligned_le32(tmp++) + 8 /* offset of DataOffset */; |
| 1273 | if (offs != sizeof(struct rndis_packet_msg_type)) |
| 1274 | debug("%s: unexpected DataOffset: %d\n", __func__, offs); |
| 1275 | if (offs >= length) |
| 1276 | return -EOVERFLOW; |
| 1277 | |
| 1278 | len = get_unaligned_le32(tmp++); |
| 1279 | if (len + sizeof(struct rndis_packet_msg_type) != length) |
| 1280 | debug("%s: unexpected DataLength: %d, packet length=%d\n", |
| 1281 | __func__, len, length); |
| 1282 | |
| 1283 | memmove(buf, buf + offs, len); |
| 1284 | |
| 1285 | return offs; |
| 1286 | } |
| 1287 | |
| 1288 | int rndis_init(void) |
| 1289 | { |
| 1290 | u8 i; |
| 1291 | |
| 1292 | for (i = 0; i < RNDIS_MAX_CONFIGS; i++) { |
| 1293 | rndis_per_dev_params[i].confignr = i; |
| 1294 | rndis_per_dev_params[i].used = 0; |
| 1295 | rndis_per_dev_params[i].state = RNDIS_UNINITIALIZED; |
| 1296 | rndis_per_dev_params[i].media_state |
| 1297 | = NDIS_MEDIA_STATE_DISCONNECTED; |
| 1298 | INIT_LIST_HEAD(&(rndis_per_dev_params[i].resp_queue)); |
| 1299 | } |
| 1300 | |
| 1301 | return 0; |
| 1302 | } |
| 1303 | |
| 1304 | void rndis_exit(void) |
| 1305 | { |
| 1306 | /* Nothing to do */ |
| 1307 | } |