1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * CDC Ethernet based networking peripherals 4 * Copyright (C) 2003-2005 by David Brownell 5 * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync) 6 */ 7 8 // #define DEBUG // error path messages, extra info 9 // #define VERBOSE // more; success messages 10 11 #include <linux/module.h> 12 #include <linux/netdevice.h> 13 #include <linux/etherdevice.h> 14 #include <linux/ethtool.h> 15 #include <linux/workqueue.h> 16 #include <linux/mii.h> 17 #include <linux/usb.h> 18 #include <linux/usb/cdc.h> 19 #include <linux/usb/usbnet.h> 20 21 22 #if IS_ENABLED(CONFIG_USB_NET_RNDIS_HOST) 23 24 static int is_rndis(struct usb_interface_descriptor *desc) 25 { 26 return (desc->bInterfaceClass == USB_CLASS_COMM && 27 desc->bInterfaceSubClass == 2 && 28 desc->bInterfaceProtocol == 0xff); 29 } 30 31 static int is_activesync(struct usb_interface_descriptor *desc) 32 { 33 return (desc->bInterfaceClass == USB_CLASS_MISC && 34 desc->bInterfaceSubClass == 1 && 35 desc->bInterfaceProtocol == 1); 36 } 37 38 static int is_wireless_rndis(struct usb_interface_descriptor *desc) 39 { 40 return (desc->bInterfaceClass == USB_CLASS_WIRELESS_CONTROLLER && 41 desc->bInterfaceSubClass == 1 && 42 desc->bInterfaceProtocol == 3); 43 } 44 45 static int is_novatel_rndis(struct usb_interface_descriptor *desc) 46 { 47 return (desc->bInterfaceClass == USB_CLASS_MISC && 48 desc->bInterfaceSubClass == 4 && 49 desc->bInterfaceProtocol == 1); 50 } 51 52 #else 53 54 #define is_rndis(desc) 0 55 #define is_activesync(desc) 0 56 #define is_wireless_rndis(desc) 0 57 #define is_novatel_rndis(desc) 0 58 59 #endif 60 61 static const u8 mbm_guid[16] = { 62 0xa3, 0x17, 0xa8, 0x8b, 0x04, 0x5e, 0x4f, 0x01, 63 0xa6, 0x07, 0xc0, 0xff, 0xcb, 0x7e, 0x39, 0x2a, 64 }; 65 66 void usbnet_cdc_update_filter(struct usbnet *dev) 67 { 68 struct net_device *net = dev->net; 69 70 u16 cdc_filter = USB_CDC_PACKET_TYPE_DIRECTED 71 | USB_CDC_PACKET_TYPE_BROADCAST; 72 73 /* filtering on the device is an optional feature and not worth 74 * the hassle so we just roughly care about snooping and if any 75 * multicast is requested, we take every multicast 76 */ 77 if (net->flags & IFF_PROMISC) 78 cdc_filter |= USB_CDC_PACKET_TYPE_PROMISCUOUS; 79 if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) 80 cdc_filter |= USB_CDC_PACKET_TYPE_ALL_MULTICAST; 81 82 usb_control_msg(dev->udev, 83 usb_sndctrlpipe(dev->udev, 0), 84 USB_CDC_SET_ETHERNET_PACKET_FILTER, 85 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 86 cdc_filter, 87 dev->intf->cur_altsetting->desc.bInterfaceNumber, 88 NULL, 89 0, 90 USB_CTRL_SET_TIMEOUT 91 ); 92 } 93 EXPORT_SYMBOL_GPL(usbnet_cdc_update_filter); 94 95 /* We need to override usbnet_*_link_ksettings in bind() */ 96 static const struct ethtool_ops cdc_ether_ethtool_ops = { 97 .get_link = usbnet_get_link, 98 .nway_reset = usbnet_nway_reset, 99 .get_drvinfo = usbnet_get_drvinfo, 100 .get_msglevel = usbnet_get_msglevel, 101 .set_msglevel = usbnet_set_msglevel, 102 .get_ts_info = ethtool_op_get_ts_info, 103 .get_link_ksettings = usbnet_get_link_ksettings_internal, 104 .set_link_ksettings = NULL, 105 }; 106 107 /* probes control interface, claims data interface, collects the bulk 108 * endpoints, activates data interface (if needed), maybe sets MTU. 109 * all pure cdc, except for certain firmware workarounds, and knowing 110 * that rndis uses one different rule. 111 */ 112 int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 113 { 114 u8 *buf = intf->cur_altsetting->extra; 115 int len = intf->cur_altsetting->extralen; 116 struct usb_interface_descriptor *d; 117 struct cdc_state *info = (void *) &dev->data; 118 int status; 119 int rndis; 120 bool android_rndis_quirk = false; 121 struct usb_driver *driver = driver_of(intf); 122 struct usb_cdc_parsed_header header; 123 124 if (sizeof(dev->data) < sizeof(*info)) 125 return -EDOM; 126 127 /* expect strict spec conformance for the descriptors, but 128 * cope with firmware which stores them in the wrong place 129 */ 130 if (len == 0 && dev->udev->actconfig->extralen) { 131 /* Motorola SB4100 (and others: Brad Hards says it's 132 * from a Broadcom design) put CDC descriptors here 133 */ 134 buf = dev->udev->actconfig->extra; 135 len = dev->udev->actconfig->extralen; 136 dev_dbg(&intf->dev, "CDC descriptors on config\n"); 137 } 138 139 /* Maybe CDC descriptors are after the endpoint? This bug has 140 * been seen on some 2Wire Inc RNDIS-ish products. 141 */ 142 if (len == 0) { 143 struct usb_host_endpoint *hep; 144 145 hep = intf->cur_altsetting->endpoint; 146 if (hep) { 147 buf = hep->extra; 148 len = hep->extralen; 149 } 150 if (len) 151 dev_dbg(&intf->dev, 152 "CDC descriptors on endpoint\n"); 153 } 154 155 /* this assumes that if there's a non-RNDIS vendor variant 156 * of cdc-acm, it'll fail RNDIS requests cleanly. 157 */ 158 rndis = (is_rndis(&intf->cur_altsetting->desc) || 159 is_activesync(&intf->cur_altsetting->desc) || 160 is_wireless_rndis(&intf->cur_altsetting->desc) || 161 is_novatel_rndis(&intf->cur_altsetting->desc)); 162 163 memset(info, 0, sizeof(*info)); 164 info->control = intf; 165 166 cdc_parse_cdc_header(&header, intf, buf, len); 167 168 info->u = header.usb_cdc_union_desc; 169 info->header = header.usb_cdc_header_desc; 170 info->ether = header.usb_cdc_ether_desc; 171 if (!info->u) { 172 if (rndis) 173 goto skip; 174 else /* in that case a quirk is mandatory */ 175 goto bad_desc; 176 } 177 /* we need a master/control interface (what we're 178 * probed with) and a slave/data interface; union 179 * descriptors sort this all out. 180 */ 181 info->control = usb_ifnum_to_if(dev->udev, info->u->bMasterInterface0); 182 info->data = usb_ifnum_to_if(dev->udev, info->u->bSlaveInterface0); 183 if (!info->control || !info->data) { 184 dev_dbg(&intf->dev, 185 "master #%u/%p slave #%u/%p\n", 186 info->u->bMasterInterface0, 187 info->control, 188 info->u->bSlaveInterface0, 189 info->data); 190 /* fall back to hard-wiring for RNDIS */ 191 if (rndis) { 192 android_rndis_quirk = true; 193 goto skip; 194 } 195 goto bad_desc; 196 } 197 if (info->control != intf) { 198 dev_dbg(&intf->dev, "bogus CDC Union\n"); 199 /* Ambit USB Cable Modem (and maybe others) 200 * interchanges master and slave interface. 201 */ 202 if (info->data == intf) { 203 info->data = info->control; 204 info->control = intf; 205 } else 206 goto bad_desc; 207 } 208 209 /* some devices merge these - skip class check */ 210 if (info->control == info->data) 211 goto skip; 212 213 /* a data interface altsetting does the real i/o */ 214 d = &info->data->cur_altsetting->desc; 215 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) { 216 dev_dbg(&intf->dev, "slave class %u\n", d->bInterfaceClass); 217 goto bad_desc; 218 } 219 skip: 220 /* Communication class functions with bmCapabilities are not 221 * RNDIS. But some Wireless class RNDIS functions use 222 * bmCapabilities for their own purpose. The failsafe is 223 * therefore applied only to Communication class RNDIS 224 * functions. The rndis test is redundant, but a cheap 225 * optimization. 226 */ 227 if (rndis && is_rndis(&intf->cur_altsetting->desc) && 228 header.usb_cdc_acm_descriptor && 229 header.usb_cdc_acm_descriptor->bmCapabilities) { 230 dev_dbg(&intf->dev, 231 "ACM capabilities %02x, not really RNDIS?\n", 232 header.usb_cdc_acm_descriptor->bmCapabilities); 233 goto bad_desc; 234 } 235 236 if (header.usb_cdc_ether_desc && info->ether->wMaxSegmentSize) { 237 dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize); 238 /* because of Zaurus, we may be ignoring the host 239 * side link address we were given. 240 */ 241 } 242 243 if (header.usb_cdc_mdlm_desc && 244 memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) { 245 dev_dbg(&intf->dev, "GUID doesn't match\n"); 246 goto bad_desc; 247 } 248 249 if (header.usb_cdc_mdlm_detail_desc && 250 header.usb_cdc_mdlm_detail_desc->bLength < 251 (sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) { 252 dev_dbg(&intf->dev, "Descriptor too short\n"); 253 goto bad_desc; 254 } 255 256 257 258 /* Microsoft ActiveSync based and some regular RNDIS devices lack the 259 * CDC descriptors, so we'll hard-wire the interfaces and not check 260 * for descriptors. 261 * 262 * Some Android RNDIS devices have a CDC Union descriptor pointing 263 * to non-existing interfaces. Ignore that and attempt the same 264 * hard-wired 0 and 1 interfaces. 265 */ 266 if (rndis && (!info->u || android_rndis_quirk)) { 267 info->control = usb_ifnum_to_if(dev->udev, 0); 268 info->data = usb_ifnum_to_if(dev->udev, 1); 269 if (!info->control || !info->data || info->control != intf) { 270 dev_dbg(&intf->dev, 271 "rndis: master #0/%p slave #1/%p\n", 272 info->control, 273 info->data); 274 goto bad_desc; 275 } 276 277 } else if (!info->header || (!rndis && !info->ether)) { 278 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n", 279 info->header ? "" : "header ", 280 info->u ? "" : "union ", 281 info->ether ? "" : "ether "); 282 goto bad_desc; 283 } 284 285 /* claim data interface and set it up ... with side effects. 286 * network traffic can't flow until an altsetting is enabled. 287 */ 288 if (info->data != info->control) { 289 status = usb_driver_claim_interface(driver, info->data, dev); 290 if (status < 0) 291 return status; 292 } 293 status = usbnet_get_endpoints(dev, info->data); 294 if (status < 0) { 295 /* ensure immediate exit from usbnet_disconnect */ 296 usb_set_intfdata(info->data, NULL); 297 if (info->data != info->control) 298 usb_driver_release_interface(driver, info->data); 299 return status; 300 } 301 302 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */ 303 if (info->data != info->control) 304 dev->status = NULL; 305 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) { 306 struct usb_endpoint_descriptor *desc; 307 308 dev->status = &info->control->cur_altsetting->endpoint[0]; 309 desc = &dev->status->desc; 310 if (!usb_endpoint_is_int_in(desc) || 311 (le16_to_cpu(desc->wMaxPacketSize) 312 < sizeof(struct usb_cdc_notification)) || 313 !desc->bInterval) { 314 dev_dbg(&intf->dev, "bad notification endpoint\n"); 315 dev->status = NULL; 316 } 317 } 318 if (rndis && !dev->status) { 319 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n"); 320 usb_set_intfdata(info->data, NULL); 321 usb_driver_release_interface(driver, info->data); 322 return -ENODEV; 323 } 324 325 /* override ethtool_ops */ 326 dev->net->ethtool_ops = &cdc_ether_ethtool_ops; 327 328 return 0; 329 330 bad_desc: 331 dev_info(&dev->udev->dev, "bad CDC descriptors\n"); 332 return -ENODEV; 333 } 334 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind); 335 336 337 /* like usbnet_generic_cdc_bind() but handles filter initialization 338 * correctly 339 */ 340 int usbnet_ether_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 341 { 342 int rv; 343 344 rv = usbnet_generic_cdc_bind(dev, intf); 345 if (rv < 0) 346 goto bail_out; 347 348 /* Some devices don't initialise properly. In particular 349 * the packet filter is not reset. There are devices that 350 * don't do reset all the way. So the packet filter should 351 * be set to a sane initial value. 352 */ 353 usbnet_cdc_update_filter(dev); 354 355 bail_out: 356 return rv; 357 } 358 EXPORT_SYMBOL_GPL(usbnet_ether_cdc_bind); 359 360 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf) 361 { 362 struct cdc_state *info = (void *) &dev->data; 363 struct usb_driver *driver = driver_of(intf); 364 365 /* combined interface - nothing to do */ 366 if (info->data == info->control) 367 return; 368 369 /* disconnect master --> disconnect slave */ 370 if (intf == info->control && info->data) { 371 /* ensure immediate exit from usbnet_disconnect */ 372 usb_set_intfdata(info->data, NULL); 373 usb_driver_release_interface(driver, info->data); 374 info->data = NULL; 375 } 376 377 /* and vice versa (just in case) */ 378 else if (intf == info->data && info->control) { 379 /* ensure immediate exit from usbnet_disconnect */ 380 usb_set_intfdata(info->control, NULL); 381 usb_driver_release_interface(driver, info->control); 382 info->control = NULL; 383 } 384 } 385 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind); 386 387 /* Communications Device Class, Ethernet Control model 388 * 389 * Takes two interfaces. The DATA interface is inactive till an altsetting 390 * is selected. Configuration data includes class descriptors. There's 391 * an optional status endpoint on the control interface. 392 * 393 * This should interop with whatever the 2.4 "CDCEther.c" driver 394 * (by Brad Hards) talked with, with more functionality. 395 */ 396 397 static void speed_change(struct usbnet *dev, __le32 *speeds) 398 { 399 dev->tx_speed = __le32_to_cpu(speeds[0]); 400 dev->rx_speed = __le32_to_cpu(speeds[1]); 401 } 402 403 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb) 404 { 405 struct usb_cdc_notification *event; 406 407 if (urb->actual_length < sizeof(*event)) 408 return; 409 410 /* SPEED_CHANGE can get split into two 8-byte packets */ 411 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) { 412 speed_change(dev, (__le32 *) urb->transfer_buffer); 413 return; 414 } 415 416 event = urb->transfer_buffer; 417 switch (event->bNotificationType) { 418 case USB_CDC_NOTIFY_NETWORK_CONNECTION: 419 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n", 420 event->wValue ? "on" : "off"); 421 usbnet_link_change(dev, !!event->wValue, 0); 422 break; 423 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */ 424 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n", 425 urb->actual_length); 426 if (urb->actual_length != (sizeof(*event) + 8)) 427 set_bit(EVENT_STS_SPLIT, &dev->flags); 428 else 429 speed_change(dev, (__le32 *) &event[1]); 430 break; 431 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS), 432 * but there are no standard formats for the response data. 433 */ 434 default: 435 netdev_err(dev->net, "CDC: unexpected notification %02x!\n", 436 event->bNotificationType); 437 break; 438 } 439 } 440 EXPORT_SYMBOL_GPL(usbnet_cdc_status); 441 442 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 443 { 444 int status; 445 struct cdc_state *info = (void *) &dev->data; 446 447 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) 448 < sizeof(struct cdc_state))); 449 450 status = usbnet_ether_cdc_bind(dev, intf); 451 if (status < 0) 452 return status; 453 454 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress); 455 if (status < 0) { 456 usb_set_intfdata(info->data, NULL); 457 usb_driver_release_interface(driver_of(intf), info->data); 458 return status; 459 } 460 461 return 0; 462 } 463 EXPORT_SYMBOL_GPL(usbnet_cdc_bind); 464 465 static int usbnet_cdc_zte_bind(struct usbnet *dev, struct usb_interface *intf) 466 { 467 int status = usbnet_cdc_bind(dev, intf); 468 469 if (!status && (dev->net->dev_addr[0] & 0x02)) 470 eth_hw_addr_random(dev->net); 471 472 return status; 473 } 474 475 /* Make sure packets have correct destination MAC address 476 * 477 * A firmware bug observed on some devices (ZTE MF823/831/910) is that the 478 * device sends packets with a static, bogus, random MAC address (event if 479 * device MAC address has been updated). Always set MAC address to that of the 480 * device. 481 */ 482 static int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb) 483 { 484 if (skb->len < ETH_HLEN || !(skb->data[0] & 0x02)) 485 return 1; 486 487 skb_reset_mac_header(skb); 488 ether_addr_copy(eth_hdr(skb)->h_dest, dev->net->dev_addr); 489 490 return 1; 491 } 492 493 /* Ensure correct link state 494 * 495 * Some devices (ZTE MF823/831/910) export two carrier on notifications when 496 * connected. This causes the link state to be incorrect. Work around this by 497 * always setting the state to off, then on. 498 */ 499 static void usbnet_cdc_zte_status(struct usbnet *dev, struct urb *urb) 500 { 501 struct usb_cdc_notification *event; 502 503 if (urb->actual_length < sizeof(*event)) 504 return; 505 506 event = urb->transfer_buffer; 507 508 if (event->bNotificationType != USB_CDC_NOTIFY_NETWORK_CONNECTION) { 509 usbnet_cdc_status(dev, urb); 510 return; 511 } 512 513 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n", 514 event->wValue ? "on" : "off"); 515 516 if (event->wValue && 517 netif_carrier_ok(dev->net)) 518 netif_carrier_off(dev->net); 519 520 usbnet_link_change(dev, !!event->wValue, 0); 521 } 522 523 static const struct driver_info cdc_info = { 524 .description = "CDC Ethernet Device", 525 .flags = FLAG_ETHER | FLAG_POINTTOPOINT, 526 .bind = usbnet_cdc_bind, 527 .unbind = usbnet_cdc_unbind, 528 .status = usbnet_cdc_status, 529 .set_rx_mode = usbnet_cdc_update_filter, 530 .manage_power = usbnet_manage_power, 531 }; 532 533 static const struct driver_info zte_cdc_info = { 534 .description = "ZTE CDC Ethernet Device", 535 .flags = FLAG_ETHER | FLAG_POINTTOPOINT, 536 .bind = usbnet_cdc_zte_bind, 537 .unbind = usbnet_cdc_unbind, 538 .status = usbnet_cdc_zte_status, 539 .set_rx_mode = usbnet_cdc_update_filter, 540 .manage_power = usbnet_manage_power, 541 .rx_fixup = usbnet_cdc_zte_rx_fixup, 542 }; 543 544 static const struct driver_info wwan_info = { 545 .description = "Mobile Broadband Network Device", 546 .flags = FLAG_WWAN, 547 .bind = usbnet_cdc_bind, 548 .unbind = usbnet_cdc_unbind, 549 .status = usbnet_cdc_status, 550 .set_rx_mode = usbnet_cdc_update_filter, 551 .manage_power = usbnet_manage_power, 552 }; 553 554 /*-------------------------------------------------------------------------*/ 555 556 #define HUAWEI_VENDOR_ID 0x12D1 557 #define NOVATEL_VENDOR_ID 0x1410 558 #define ZTE_VENDOR_ID 0x19D2 559 #define DELL_VENDOR_ID 0x413C 560 #define REALTEK_VENDOR_ID 0x0bda 561 #define SAMSUNG_VENDOR_ID 0x04e8 562 #define LENOVO_VENDOR_ID 0x17ef 563 #define LINKSYS_VENDOR_ID 0x13b1 564 #define NVIDIA_VENDOR_ID 0x0955 565 #define HP_VENDOR_ID 0x03f0 566 #define MICROSOFT_VENDOR_ID 0x045e 567 #define UBLOX_VENDOR_ID 0x1546 568 #define TPLINK_VENDOR_ID 0x2357 569 #define AQUANTIA_VENDOR_ID 0x2eca 570 #define ASIX_VENDOR_ID 0x0b95 571 572 static const struct usb_device_id products[] = { 573 /* BLACKLIST !! 574 * 575 * First blacklist any products that are egregiously nonconformant 576 * with the CDC Ethernet specs. Minor braindamage we cope with; when 577 * they're not even trying, needing a separate driver is only the first 578 * of the differences to show up. 579 */ 580 581 #define ZAURUS_MASTER_INTERFACE \ 582 .bInterfaceClass = USB_CLASS_COMM, \ 583 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ 584 .bInterfaceProtocol = USB_CDC_PROTO_NONE 585 586 /* SA-1100 based Sharp Zaurus ("collie"), or compatible; 587 * wire-incompatible with true CDC Ethernet implementations. 588 * (And, it seems, needlessly so...) 589 */ 590 { 591 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 592 | USB_DEVICE_ID_MATCH_DEVICE, 593 .idVendor = 0x04DD, 594 .idProduct = 0x8004, 595 ZAURUS_MASTER_INTERFACE, 596 .driver_info = 0, 597 }, 598 599 /* PXA-25x based Sharp Zaurii. Note that it seems some of these 600 * (later models especially) may have shipped only with firmware 601 * advertising false "CDC MDLM" compatibility ... but we're not 602 * clear which models did that, so for now let's assume the worst. 603 */ 604 { 605 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 606 | USB_DEVICE_ID_MATCH_DEVICE, 607 .idVendor = 0x04DD, 608 .idProduct = 0x8005, /* A-300 */ 609 ZAURUS_MASTER_INTERFACE, 610 .driver_info = 0, 611 }, { 612 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 613 | USB_DEVICE_ID_MATCH_DEVICE, 614 .idVendor = 0x04DD, 615 .idProduct = 0x8006, /* B-500/SL-5600 */ 616 ZAURUS_MASTER_INTERFACE, 617 .driver_info = 0, 618 }, { 619 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 620 | USB_DEVICE_ID_MATCH_DEVICE, 621 .idVendor = 0x04DD, 622 .idProduct = 0x8007, /* C-700 */ 623 ZAURUS_MASTER_INTERFACE, 624 .driver_info = 0, 625 }, { 626 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 627 | USB_DEVICE_ID_MATCH_DEVICE, 628 .idVendor = 0x04DD, 629 .idProduct = 0x9031, /* C-750 C-760 */ 630 ZAURUS_MASTER_INTERFACE, 631 .driver_info = 0, 632 }, { 633 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 634 | USB_DEVICE_ID_MATCH_DEVICE, 635 .idVendor = 0x04DD, 636 .idProduct = 0x9032, /* SL-6000 */ 637 ZAURUS_MASTER_INTERFACE, 638 .driver_info = 0, 639 }, { 640 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 641 | USB_DEVICE_ID_MATCH_DEVICE, 642 .idVendor = 0x04DD, 643 /* reported with some C860 units */ 644 .idProduct = 0x9050, /* C-860 */ 645 ZAURUS_MASTER_INTERFACE, 646 .driver_info = 0, 647 }, 648 649 /* Olympus has some models with a Zaurus-compatible option. 650 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T) 651 */ 652 { 653 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 654 | USB_DEVICE_ID_MATCH_DEVICE, 655 .idVendor = 0x07B4, 656 .idProduct = 0x0F02, /* R-1000 */ 657 ZAURUS_MASTER_INTERFACE, 658 .driver_info = 0, 659 }, 660 661 /* LG Electronics VL600 wants additional headers on every frame */ 662 { 663 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM, 664 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 665 .driver_info = 0, 666 }, 667 668 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */ 669 { 670 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM, 671 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), 672 .driver_info = 0, 673 }, 674 675 /* Novatel USB551L and MC551 - handled by qmi_wwan */ 676 { 677 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM, 678 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 679 .driver_info = 0, 680 }, 681 682 /* Novatel E362 - handled by qmi_wwan */ 683 { 684 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM, 685 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 686 .driver_info = 0, 687 }, 688 689 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 690 { 691 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM, 692 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 693 .driver_info = 0, 694 }, 695 696 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 697 { 698 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM, 699 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 700 .driver_info = 0, 701 }, 702 703 /* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */ 704 { 705 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM, 706 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 707 .driver_info = 0, 708 }, 709 710 /* Novatel Expedite E371 - handled by qmi_wwan */ 711 { 712 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM, 713 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 714 .driver_info = 0, 715 }, 716 717 /* HP lt2523 (Novatel E371) - handled by qmi_wwan */ 718 { 719 USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM, 720 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 721 .driver_info = 0, 722 }, 723 724 /* AnyDATA ADU960S - handled by qmi_wwan */ 725 { 726 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM, 727 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 728 .driver_info = 0, 729 }, 730 731 /* Huawei E1820 - handled by qmi_wwan */ 732 { 733 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1), 734 .driver_info = 0, 735 }, 736 737 /* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */ 738 { 739 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM, 740 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 741 .driver_info = 0, 742 }, 743 744 /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */ 745 { 746 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM, 747 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 748 .driver_info = 0, 749 }, 750 751 /* Samsung USB Ethernet Adapters */ 752 { 753 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM, 754 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 755 .driver_info = 0, 756 }, 757 758 #if IS_ENABLED(CONFIG_USB_RTL8152) 759 /* Linksys USB3GIGV1 Ethernet Adapter */ 760 { 761 USB_DEVICE_AND_INTERFACE_INFO(LINKSYS_VENDOR_ID, 0x0041, USB_CLASS_COMM, 762 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 763 .driver_info = 0, 764 }, 765 #endif 766 767 /* ThinkPad USB-C Dock (based on Realtek RTL8153) */ 768 { 769 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3062, USB_CLASS_COMM, 770 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 771 .driver_info = 0, 772 }, 773 774 /* ThinkPad Thunderbolt 3 Dock (based on Realtek RTL8153) */ 775 { 776 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3069, USB_CLASS_COMM, 777 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 778 .driver_info = 0, 779 }, 780 781 /* ThinkPad Thunderbolt 3 Dock Gen 2 (based on Realtek RTL8153) */ 782 { 783 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3082, USB_CLASS_COMM, 784 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 785 .driver_info = 0, 786 }, 787 788 /* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 789 { 790 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM, 791 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 792 .driver_info = 0, 793 }, 794 795 /* Lenovo USB C to Ethernet Adapter (based on Realtek RTL8153) */ 796 { 797 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x720c, USB_CLASS_COMM, 798 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 799 .driver_info = 0, 800 }, 801 802 /* Lenovo USB-C Travel Hub (based on Realtek RTL8153) */ 803 { 804 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7214, USB_CLASS_COMM, 805 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 806 .driver_info = 0, 807 }, 808 809 /* Lenovo Powered USB-C Travel Hub (4X90S92381, based on Realtek RTL8153) */ 810 { 811 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x721e, USB_CLASS_COMM, 812 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 813 .driver_info = 0, 814 }, 815 816 /* ThinkPad USB-C Dock Gen 2 (based on Realtek RTL8153) */ 817 { 818 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0xa387, USB_CLASS_COMM, 819 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 820 .driver_info = 0, 821 }, 822 823 /* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 824 { 825 USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM, 826 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 827 .driver_info = 0, 828 }, 829 830 /* Microsoft Surface 2 dock (based on Realtek RTL8152) */ 831 { 832 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07ab, USB_CLASS_COMM, 833 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 834 .driver_info = 0, 835 }, 836 837 /* Microsoft Surface Ethernet Adapter (based on Realtek RTL8153) */ 838 { 839 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07c6, USB_CLASS_COMM, 840 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 841 .driver_info = 0, 842 }, 843 844 /* Microsoft Surface Ethernet Adapter (based on Realtek RTL8153B) */ 845 { 846 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x0927, USB_CLASS_COMM, 847 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 848 .driver_info = 0, 849 }, 850 851 /* TP-LINK UE300 USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 852 { 853 USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, 0x0601, USB_CLASS_COMM, 854 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 855 .driver_info = 0, 856 }, 857 858 /* Aquantia AQtion USB to 5GbE Controller (based on AQC111U) */ 859 { 860 USB_DEVICE_AND_INTERFACE_INFO(AQUANTIA_VENDOR_ID, 0xc101, 861 USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, 862 USB_CDC_PROTO_NONE), 863 .driver_info = 0, 864 }, 865 866 /* ASIX USB 3.1 Gen1 to 5G Multi-Gigabit Ethernet Adapter(based on AQC111U) */ 867 { 868 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2790, USB_CLASS_COMM, 869 USB_CDC_SUBCLASS_ETHERNET, 870 USB_CDC_PROTO_NONE), 871 .driver_info = 0, 872 }, 873 874 /* ASIX USB 3.1 Gen1 to 2.5G Multi-Gigabit Ethernet Adapter(based on AQC112U) */ 875 { 876 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2791, USB_CLASS_COMM, 877 USB_CDC_SUBCLASS_ETHERNET, 878 USB_CDC_PROTO_NONE), 879 .driver_info = 0, 880 }, 881 882 /* USB-C 3.1 to 5GBASE-T Ethernet Adapter (based on AQC111U) */ 883 { 884 USB_DEVICE_AND_INTERFACE_INFO(0x20f4, 0xe05a, USB_CLASS_COMM, 885 USB_CDC_SUBCLASS_ETHERNET, 886 USB_CDC_PROTO_NONE), 887 .driver_info = 0, 888 }, 889 890 /* QNAP QNA-UC5G1T USB to 5GbE Adapter (based on AQC111U) */ 891 { 892 USB_DEVICE_AND_INTERFACE_INFO(0x1c04, 0x0015, USB_CLASS_COMM, 893 USB_CDC_SUBCLASS_ETHERNET, 894 USB_CDC_PROTO_NONE), 895 .driver_info = 0, 896 }, 897 898 /* WHITELIST!!! 899 * 900 * CDC Ether uses two interfaces, not necessarily consecutive. 901 * We match the main interface, ignoring the optional device 902 * class so we could handle devices that aren't exclusively 903 * CDC ether. 904 * 905 * NOTE: this match must come AFTER entries blacklisting devices 906 * because of bugs/quirks in a given product (like Zaurus, above). 907 */ 908 { 909 /* ZTE (Vodafone) K3805-Z */ 910 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM, 911 USB_CDC_SUBCLASS_ETHERNET, 912 USB_CDC_PROTO_NONE), 913 .driver_info = (unsigned long)&wwan_info, 914 }, { 915 /* ZTE (Vodafone) K3806-Z */ 916 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM, 917 USB_CDC_SUBCLASS_ETHERNET, 918 USB_CDC_PROTO_NONE), 919 .driver_info = (unsigned long)&wwan_info, 920 }, { 921 /* ZTE (Vodafone) K4510-Z */ 922 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM, 923 USB_CDC_SUBCLASS_ETHERNET, 924 USB_CDC_PROTO_NONE), 925 .driver_info = (unsigned long)&wwan_info, 926 }, { 927 /* ZTE (Vodafone) K3770-Z */ 928 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM, 929 USB_CDC_SUBCLASS_ETHERNET, 930 USB_CDC_PROTO_NONE), 931 .driver_info = (unsigned long)&wwan_info, 932 }, { 933 /* ZTE (Vodafone) K3772-Z */ 934 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM, 935 USB_CDC_SUBCLASS_ETHERNET, 936 USB_CDC_PROTO_NONE), 937 .driver_info = (unsigned long)&wwan_info, 938 }, { 939 /* Telit modules */ 940 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM, 941 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 942 .driver_info = (kernel_ulong_t) &wwan_info, 943 }, { 944 /* Dell DW5580 modules */ 945 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM, 946 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 947 .driver_info = (kernel_ulong_t)&wwan_info, 948 }, { 949 /* Huawei ME906 and ME909 */ 950 USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x15c1, USB_CLASS_COMM, 951 USB_CDC_SUBCLASS_ETHERNET, 952 USB_CDC_PROTO_NONE), 953 .driver_info = (unsigned long)&wwan_info, 954 }, { 955 /* ZTE modules */ 956 USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM, 957 USB_CDC_SUBCLASS_ETHERNET, 958 USB_CDC_PROTO_NONE), 959 .driver_info = (unsigned long)&zte_cdc_info, 960 }, { 961 /* U-blox TOBY-L2 */ 962 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1143, USB_CLASS_COMM, 963 USB_CDC_SUBCLASS_ETHERNET, 964 USB_CDC_PROTO_NONE), 965 .driver_info = (unsigned long)&wwan_info, 966 }, { 967 /* U-blox SARA-U2 */ 968 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1104, USB_CLASS_COMM, 969 USB_CDC_SUBCLASS_ETHERNET, 970 USB_CDC_PROTO_NONE), 971 .driver_info = (unsigned long)&wwan_info, 972 }, { 973 /* Cinterion PLS8 modem by GEMALTO */ 974 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0061, USB_CLASS_COMM, 975 USB_CDC_SUBCLASS_ETHERNET, 976 USB_CDC_PROTO_NONE), 977 .driver_info = (unsigned long)&wwan_info, 978 }, { 979 /* Cinterion AHS3 modem by GEMALTO */ 980 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0055, USB_CLASS_COMM, 981 USB_CDC_SUBCLASS_ETHERNET, 982 USB_CDC_PROTO_NONE), 983 .driver_info = (unsigned long)&wwan_info, 984 }, { 985 /* Cinterion PLS83/PLS63 modem by GEMALTO/THALES */ 986 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0069, USB_CLASS_COMM, 987 USB_CDC_SUBCLASS_ETHERNET, 988 USB_CDC_PROTO_NONE), 989 .driver_info = (unsigned long)&wwan_info, 990 }, { 991 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, 992 USB_CDC_PROTO_NONE), 993 .driver_info = (unsigned long) &cdc_info, 994 }, { 995 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, 996 USB_CDC_PROTO_NONE), 997 .driver_info = (unsigned long)&wwan_info, 998 999 }, { 1000 /* Various Huawei modems with a network port like the UMG1831 */ 1001 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM, 1002 USB_CDC_SUBCLASS_ETHERNET, 255), 1003 .driver_info = (unsigned long)&wwan_info, 1004 }, 1005 { }, /* END */ 1006 }; 1007 MODULE_DEVICE_TABLE(usb, products); 1008 1009 static struct usb_driver cdc_driver = { 1010 .name = "cdc_ether", 1011 .id_table = products, 1012 .probe = usbnet_probe, 1013 .disconnect = usbnet_disconnect, 1014 .suspend = usbnet_suspend, 1015 .resume = usbnet_resume, 1016 .reset_resume = usbnet_resume, 1017 .supports_autosuspend = 1, 1018 .disable_hub_initiated_lpm = 1, 1019 }; 1020 1021 module_usb_driver(cdc_driver); 1022 1023 MODULE_AUTHOR("David Brownell"); 1024 MODULE_DESCRIPTION("USB CDC Ethernet devices"); 1025 MODULE_LICENSE("GPL"); 1026