4 * Version: $Id: rndis.c,v 1.19 2004/03/25 21:33:46 robert Exp $
6 * Authors: Benedikt Spranger, Pengutronix
7 * Robert Schwebel, Pengutronix
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.
13 * This software was originally developed in conformance with
14 * Microsoft's Remote NDIS Specification License Agreement.
16 * 03/12/2004 Kai-Uwe Bloem <linux-development@auerswald.de>
17 * Fixed message length bug in init_response
19 * 03/25/2004 Kai-Uwe Bloem <linux-development@auerswald.de>
20 * Fixed rndis_rm_hdr length bug.
22 * Copyright (C) 2004 by David Brownell
23 * updates to merge with Linux 2.6, better match RNDIS spec
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>
38 #include <asm/byteorder.h>
39 #include <asm/system.h>
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).
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.
56 #define DEBUG(str,args...) do { \
58 printk(KERN_DEBUG str , ## args ); \
60 static int rndis_debug = 0;
62 module_param (rndis_debug, bool, 0);
63 MODULE_PARM_DESC (rndis_debug, "enable debugging");
68 #define DEBUG(str,args...) do{}while(0)
71 #define RNDIS_MAX_CONFIGS 1
73 static struct proc_dir_entry *rndis_connect_dir;
74 static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS];
76 static rndis_params rndis_per_dev_params [RNDIS_MAX_CONFIGS];
79 static const u32 rndis_driver_version = __constant_cpu_to_le32 (1);
81 /* Function Prototypes */
82 static int rndis_init_response (int configNr, rndis_init_msg_type *buf);
83 static int rndis_query_response (int configNr, rndis_query_msg_type *buf);
84 static int rndis_set_response (int configNr, rndis_set_msg_type *buf);
85 static int rndis_reset_response (int configNr, rndis_reset_msg_type *buf);
86 static int rndis_keepalive_response (int configNr,
87 rndis_keepalive_msg_type *buf);
89 static rndis_resp_t *rndis_add_response (int configNr, u32 length);
93 static int gen_ndis_query_resp (int configNr, u32 OID, rndis_resp_t *r)
95 int retval = -ENOTSUPP;
99 rndis_query_cmplt_type *resp;
101 if (!r) return -ENOMEM;
102 resp = (rndis_query_cmplt_type *) r->buf;
104 if (!resp) return -ENOMEM;
108 /* general oids (table 4-1) */
111 case OID_GEN_SUPPORTED_LIST:
112 DEBUG ("%s: OID_GEN_SUPPORTED_LIST\n", __FUNCTION__);
113 length = sizeof (oid_supported_list);
114 count = length / sizeof (u32);
115 tmp = (u32 *) ((u8 *)resp + 24);
116 for (i = 0; i < count; i++)
117 tmp[i] = cpu_to_le32 (oid_supported_list[i]);
122 case OID_GEN_HARDWARE_STATUS:
123 DEBUG("%s: OID_GEN_HARDWARE_STATUS\n", __FUNCTION__);
126 * Hardware must be ready to recieve high level protocols.
128 * reddite ergo quae sunt Caesaris Caesari
129 * et quae sunt Dei Deo!
131 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
136 case OID_GEN_MEDIA_SUPPORTED:
137 DEBUG("%s: OID_GEN_MEDIA_SUPPORTED\n", __FUNCTION__);
139 *((u32 *) resp + 6) = cpu_to_le32 (
140 rndis_per_dev_params [configNr].medium);
145 case OID_GEN_MEDIA_IN_USE:
146 DEBUG("%s: OID_GEN_MEDIA_IN_USE\n", __FUNCTION__);
148 /* one medium, one transport... (maybe you do it better) */
149 *((u32 *) resp + 6) = cpu_to_le32 (
150 rndis_per_dev_params [configNr].medium);
155 case OID_GEN_MAXIMUM_FRAME_SIZE:
156 DEBUG("%s: OID_GEN_MAXIMUM_FRAME_SIZE\n", __FUNCTION__);
157 if (rndis_per_dev_params [configNr].dev) {
159 *((u32 *) resp + 6) = cpu_to_le32 (
160 rndis_per_dev_params [configNr].dev->mtu);
163 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
169 case OID_GEN_LINK_SPEED:
170 DEBUG("%s: OID_GEN_LINK_SPEED\n", __FUNCTION__);
172 if (rndis_per_dev_params [configNr].media_state
173 == NDIS_MEDIA_STATE_DISCONNECTED)
174 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
176 *((u32 *) resp + 6) = cpu_to_le32 (
177 rndis_per_dev_params [configNr].speed);
182 case OID_GEN_TRANSMIT_BLOCK_SIZE:
183 DEBUG("%s: OID_GEN_TRANSMIT_BLOCK_SIZE\n", __FUNCTION__);
184 if (rndis_per_dev_params [configNr].dev) {
186 *((u32 *) resp + 6) = cpu_to_le32 (
187 rndis_per_dev_params [configNr].dev->mtu);
193 case OID_GEN_RECEIVE_BLOCK_SIZE:
194 DEBUG("%s: OID_GEN_RECEIVE_BLOCK_SIZE\n", __FUNCTION__);
195 if (rndis_per_dev_params [configNr].dev) {
197 *((u32 *) resp + 6) = cpu_to_le32 (
198 rndis_per_dev_params [configNr].dev->mtu);
204 case OID_GEN_VENDOR_ID:
205 DEBUG("%s: OID_GEN_VENDOR_ID\n", __FUNCTION__);
207 *((u32 *) resp + 6) = cpu_to_le32 (
208 rndis_per_dev_params [configNr].vendorID);
213 case OID_GEN_VENDOR_DESCRIPTION:
214 DEBUG("%s: OID_GEN_VENDOR_DESCRIPTION\n", __FUNCTION__);
215 length = strlen (rndis_per_dev_params [configNr].vendorDescr);
216 memcpy ((u8 *) resp + 24,
217 rndis_per_dev_params [configNr].vendorDescr, length);
221 case OID_GEN_VENDOR_DRIVER_VERSION:
222 DEBUG("%s: OID_GEN_VENDOR_DRIVER_VERSION\n", __FUNCTION__);
225 *((u32 *) resp + 6) = rndis_driver_version;
230 case OID_GEN_CURRENT_PACKET_FILTER:
231 DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER\n", __FUNCTION__);
233 *((u32 *) resp + 6) = cpu_to_le32 (
234 rndis_per_dev_params[configNr].filter);
239 case OID_GEN_MAXIMUM_TOTAL_SIZE:
240 DEBUG("%s: OID_GEN_MAXIMUM_TOTAL_SIZE\n", __FUNCTION__);
242 *((u32 *) resp + 6) = __constant_cpu_to_le32(
243 RNDIS_MAX_TOTAL_SIZE);
248 case OID_GEN_MEDIA_CONNECT_STATUS:
249 DEBUG("%s: OID_GEN_MEDIA_CONNECT_STATUS\n", __FUNCTION__);
251 *((u32 *) resp + 6) = cpu_to_le32 (
252 rndis_per_dev_params [configNr]
257 case OID_GEN_PHYSICAL_MEDIUM:
258 DEBUG("%s: OID_GEN_PHYSICAL_MEDIUM\n", __FUNCTION__);
260 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
264 /* The RNDIS specification is incomplete/wrong. Some versions
265 * of MS-Windows expect OIDs that aren't specified there. Other
266 * versions emit undefined RNDIS messages. DOCUMENT ALL THESE!
268 case OID_GEN_MAC_OPTIONS: /* from WinME */
269 DEBUG("%s: OID_GEN_MAC_OPTIONS\n", __FUNCTION__);
271 *((u32 *) resp + 6) = __constant_cpu_to_le32(
272 NDIS_MAC_OPTION_RECEIVE_SERIALIZED
273 | NDIS_MAC_OPTION_FULL_DUPLEX);
277 /* statistics OIDs (table 4-2) */
280 case OID_GEN_XMIT_OK:
281 DEBUG("%s: OID_GEN_XMIT_OK\n", __FUNCTION__);
282 if (rndis_per_dev_params [configNr].stats) {
284 *((u32 *) resp + 6) = cpu_to_le32 (
285 rndis_per_dev_params [configNr].stats->tx_packets -
286 rndis_per_dev_params [configNr].stats->tx_errors -
287 rndis_per_dev_params [configNr].stats->tx_dropped);
290 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
297 DEBUG("%s: OID_GEN_RCV_OK\n", __FUNCTION__);
298 if (rndis_per_dev_params [configNr].stats) {
300 *((u32 *) resp + 6) = cpu_to_le32 (
301 rndis_per_dev_params [configNr].stats->rx_packets -
302 rndis_per_dev_params [configNr].stats->rx_errors -
303 rndis_per_dev_params [configNr].stats->rx_dropped);
306 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
312 case OID_GEN_XMIT_ERROR:
313 DEBUG("%s: OID_GEN_XMIT_ERROR\n", __FUNCTION__);
314 if (rndis_per_dev_params [configNr].stats) {
316 *((u32 *) resp + 6) = cpu_to_le32 (
317 rndis_per_dev_params [configNr]
321 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
327 case OID_GEN_RCV_ERROR:
328 DEBUG("%s: OID_GEN_RCV_ERROR\n", __FUNCTION__);
329 if (rndis_per_dev_params [configNr].stats) {
330 *((u32 *) resp + 6) = cpu_to_le32 (
331 rndis_per_dev_params [configNr]
335 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
341 case OID_GEN_RCV_NO_BUFFER:
342 DEBUG("%s: OID_GEN_RCV_NO_BUFFER\n", __FUNCTION__);
343 if (rndis_per_dev_params [configNr].stats) {
344 *((u32 *) resp + 6) = cpu_to_le32 (
345 rndis_per_dev_params [configNr]
349 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
354 #ifdef RNDIS_OPTIONAL_STATS
355 case OID_GEN_DIRECTED_BYTES_XMIT:
356 DEBUG("%s: OID_GEN_DIRECTED_BYTES_XMIT\n", __FUNCTION__);
358 * Aunt Tilly's size of shoes
359 * minus antarctica count of penguins
360 * divided by weight of Alpha Centauri
362 if (rndis_per_dev_params [configNr].stats) {
364 *((u32 *) resp + 6) = cpu_to_le32 (
365 (rndis_per_dev_params [configNr]
367 rndis_per_dev_params [configNr]
369 rndis_per_dev_params [configNr]
374 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
379 case OID_GEN_DIRECTED_FRAMES_XMIT:
380 DEBUG("%s: OID_GEN_DIRECTED_FRAMES_XMIT\n", __FUNCTION__);
382 if (rndis_per_dev_params [configNr].stats) {
384 *((u32 *) resp + 6) = cpu_to_le32 (
385 (rndis_per_dev_params [configNr]
387 rndis_per_dev_params [configNr]
389 rndis_per_dev_params [configNr]
394 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
399 case OID_GEN_MULTICAST_BYTES_XMIT:
400 DEBUG("%s: OID_GEN_MULTICAST_BYTES_XMIT\n", __FUNCTION__);
401 if (rndis_per_dev_params [configNr].stats) {
402 *((u32 *) resp + 6) = cpu_to_le32 (
403 rndis_per_dev_params [configNr]
404 .stats->multicast*1234);
407 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
412 case OID_GEN_MULTICAST_FRAMES_XMIT:
413 DEBUG("%s: OID_GEN_MULTICAST_FRAMES_XMIT\n", __FUNCTION__);
414 if (rndis_per_dev_params [configNr].stats) {
415 *((u32 *) resp + 6) = cpu_to_le32 (
416 rndis_per_dev_params [configNr]
420 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
425 case OID_GEN_BROADCAST_BYTES_XMIT:
426 DEBUG("%s: OID_GEN_BROADCAST_BYTES_XMIT\n", __FUNCTION__);
427 if (rndis_per_dev_params [configNr].stats) {
428 *((u32 *) resp + 6) = cpu_to_le32 (
429 rndis_per_dev_params [configNr]
430 .stats->tx_packets/42*255);
433 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
438 case OID_GEN_BROADCAST_FRAMES_XMIT:
439 DEBUG("%s: OID_GEN_BROADCAST_FRAMES_XMIT\n", __FUNCTION__);
440 if (rndis_per_dev_params [configNr].stats) {
441 *((u32 *) resp + 6) = cpu_to_le32 (
442 rndis_per_dev_params [configNr]
443 .stats->tx_packets/42);
446 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
451 case OID_GEN_DIRECTED_BYTES_RCV:
452 DEBUG("%s: OID_GEN_DIRECTED_BYTES_RCV\n", __FUNCTION__);
453 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
457 case OID_GEN_DIRECTED_FRAMES_RCV:
458 DEBUG("%s: OID_GEN_DIRECTED_FRAMES_RCV\n", __FUNCTION__);
459 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
463 case OID_GEN_MULTICAST_BYTES_RCV:
464 DEBUG("%s: OID_GEN_MULTICAST_BYTES_RCV\n", __FUNCTION__);
465 if (rndis_per_dev_params [configNr].stats) {
466 *((u32 *) resp + 6) = cpu_to_le32 (
467 rndis_per_dev_params [configNr]
468 .stats->multicast * 1111);
471 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
476 case OID_GEN_MULTICAST_FRAMES_RCV:
477 DEBUG("%s: OID_GEN_MULTICAST_FRAMES_RCV\n", __FUNCTION__);
478 if (rndis_per_dev_params [configNr].stats) {
479 *((u32 *) resp + 6) = cpu_to_le32 (
480 rndis_per_dev_params [configNr]
484 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
489 case OID_GEN_BROADCAST_BYTES_RCV:
490 DEBUG("%s: OID_GEN_BROADCAST_BYTES_RCV\n", __FUNCTION__);
491 if (rndis_per_dev_params [configNr].stats) {
492 *((u32 *) resp + 6) = cpu_to_le32 (
493 rndis_per_dev_params [configNr]
494 .stats->rx_packets/42*255);
497 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
502 case OID_GEN_BROADCAST_FRAMES_RCV:
503 DEBUG("%s: OID_GEN_BROADCAST_FRAMES_RCV\n", __FUNCTION__);
504 if (rndis_per_dev_params [configNr].stats) {
505 *((u32 *) resp + 6) = cpu_to_le32 (
506 rndis_per_dev_params [configNr]
507 .stats->rx_packets/42);
510 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
515 case OID_GEN_RCV_CRC_ERROR:
516 DEBUG("%s: OID_GEN_RCV_CRC_ERROR\n", __FUNCTION__);
517 if (rndis_per_dev_params [configNr].stats) {
518 *((u32 *) resp + 6) = cpu_to_le32 (
519 rndis_per_dev_params [configNr]
520 .stats->rx_crc_errors);
523 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
528 case OID_GEN_TRANSMIT_QUEUE_LENGTH:
529 DEBUG("%s: OID_GEN_TRANSMIT_QUEUE_LENGTH\n", __FUNCTION__);
530 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
533 #endif /* RNDIS_OPTIONAL_STATS */
535 /* ieee802.3 OIDs (table 4-3) */
538 case OID_802_3_PERMANENT_ADDRESS:
539 DEBUG("%s: OID_802_3_PERMANENT_ADDRESS\n", __FUNCTION__);
540 if (rndis_per_dev_params [configNr].dev) {
542 memcpy ((u8 *) resp + 24,
543 rndis_per_dev_params [configNr].host_mac,
547 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
553 case OID_802_3_CURRENT_ADDRESS:
554 DEBUG("%s: OID_802_3_CURRENT_ADDRESS\n", __FUNCTION__);
555 if (rndis_per_dev_params [configNr].dev) {
557 memcpy ((u8 *) resp + 24,
558 rndis_per_dev_params [configNr].host_mac,
565 case OID_802_3_MULTICAST_LIST:
566 DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__);
568 /* Multicast base address only */
569 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0xE0000000);
574 case OID_802_3_MAXIMUM_LIST_SIZE:
575 DEBUG("%s: OID_802_3_MAXIMUM_LIST_SIZE\n", __FUNCTION__);
577 /* Multicast base address only */
578 *((u32 *) resp + 6) = __constant_cpu_to_le32 (1);
582 case OID_802_3_MAC_OPTIONS:
583 DEBUG("%s: OID_802_3_MAC_OPTIONS\n", __FUNCTION__);
586 /* ieee802.3 statistics OIDs (table 4-4) */
589 case OID_802_3_RCV_ERROR_ALIGNMENT:
590 DEBUG("%s: OID_802_3_RCV_ERROR_ALIGNMENT\n", __FUNCTION__);
591 if (rndis_per_dev_params [configNr].stats)
594 *((u32 *) resp + 6) = cpu_to_le32 (
595 rndis_per_dev_params [configNr]
596 .stats->rx_frame_errors);
602 case OID_802_3_XMIT_ONE_COLLISION:
603 DEBUG("%s: OID_802_3_XMIT_ONE_COLLISION\n", __FUNCTION__);
605 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
610 case OID_802_3_XMIT_MORE_COLLISIONS:
611 DEBUG("%s: OID_802_3_XMIT_MORE_COLLISIONS\n", __FUNCTION__);
613 *((u32 *) resp + 6) = __constant_cpu_to_le32 (0);
617 #ifdef RNDIS_OPTIONAL_STATS
618 case OID_802_3_XMIT_DEFERRED:
619 DEBUG("%s: OID_802_3_XMIT_DEFERRED\n", __FUNCTION__);
623 case OID_802_3_XMIT_MAX_COLLISIONS:
624 DEBUG("%s: OID_802_3_XMIT_MAX_COLLISIONS\n", __FUNCTION__);
628 case OID_802_3_RCV_OVERRUN:
629 DEBUG("%s: OID_802_3_RCV_OVERRUN\n", __FUNCTION__);
633 case OID_802_3_XMIT_UNDERRUN:
634 DEBUG("%s: OID_802_3_XMIT_UNDERRUN\n", __FUNCTION__);
638 case OID_802_3_XMIT_HEARTBEAT_FAILURE:
639 DEBUG("%s: OID_802_3_XMIT_HEARTBEAT_FAILURE\n", __FUNCTION__);
643 case OID_802_3_XMIT_TIMES_CRS_LOST:
644 DEBUG("%s: OID_802_3_XMIT_TIMES_CRS_LOST\n", __FUNCTION__);
648 case OID_802_3_XMIT_LATE_COLLISIONS:
649 DEBUG("%s: OID_802_3_XMIT_LATE_COLLISIONS\n", __FUNCTION__);
652 #endif /* RNDIS_OPTIONAL_STATS */
655 /* power management OIDs (table 4-5) */
656 case OID_PNP_CAPABILITIES:
657 DEBUG("%s: OID_PNP_CAPABILITIES\n", __FUNCTION__);
659 /* just PM, and remote wakeup on link status change
660 * (not magic packet or pattern match)
662 length = sizeof (struct NDIS_PNP_CAPABILITIES);
663 memset (resp, 0, length);
665 struct NDIS_PNP_CAPABILITIES *caps = (void *) resp;
667 caps->Flags = NDIS_DEVICE_WAKE_UP_ENABLE;
668 caps->WakeUpCapabilities.MinLinkChangeWakeUp
671 /* FIXME then use usb_gadget_wakeup(), and
672 * set USB_CONFIG_ATT_WAKEUP in config desc
677 case OID_PNP_QUERY_POWER:
678 DEBUG("%s: OID_PNP_QUERY_POWER\n", __FUNCTION__);
679 /* sure, handle any power state that maps to USB suspend */
685 printk (KERN_WARNING "%s: query unknown OID 0x%08X\n",
689 resp->InformationBufferOffset = __constant_cpu_to_le32 (16);
690 resp->InformationBufferLength = cpu_to_le32 (length);
691 resp->MessageLength = cpu_to_le32 (24 + length);
692 r->length = 24 + length;
696 static int gen_ndis_set_resp (u8 configNr, u32 OID, u8 *buf, u32 buf_len,
699 rndis_set_cmplt_type *resp;
700 int i, retval = -ENOTSUPP;
701 struct rndis_params *params;
705 resp = (rndis_set_cmplt_type *) r->buf;
709 DEBUG("set OID %08x value, len %d:\n", OID, buf_len);
710 for (i = 0; i < buf_len; i += 16) {
712 " %02x %02x %02x %02x"
713 " %02x %02x %02x %02x"
714 " %02x %02x %02x %02x"
715 " %02x %02x %02x %02x"
723 buf[i+10], buf[i+11],
724 buf[i+12], buf [i+13],
725 buf[i+14], buf[i+15]);
729 case OID_GEN_CURRENT_PACKET_FILTER:
730 params = &rndis_per_dev_params [configNr];
733 /* FIXME use these NDIS_PACKET_TYPE_* bitflags to
734 * filter packets in hard_start_xmit()
735 * NDIS_PACKET_TYPE_x == CDC_PACKET_TYPE_x for x in:
736 * PROMISCUOUS, DIRECTED,
737 * MULTICAST, ALL_MULTICAST, BROADCAST
739 params->filter = cpu_to_le32p((u32 *)buf);
740 DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER %08x\n",
741 __FUNCTION__, params->filter);
743 /* this call has a significant side effect: it's
744 * what makes the packet flow start and stop, like
745 * activating the CDC Ethernet altsetting.
747 if (params->filter) {
748 params->state = RNDIS_DATA_INITIALIZED;
749 netif_carrier_on(params->dev);
750 if (netif_running(params->dev))
751 netif_wake_queue (params->dev);
753 params->state = RNDIS_INITIALIZED;
754 netif_carrier_off (params->dev);
755 netif_stop_queue (params->dev);
759 case OID_802_3_MULTICAST_LIST:
760 /* I think we can ignore this */
761 DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__);
765 case OID_GEN_RNDIS_CONFIG_PARAMETER:
767 struct rndis_config_parameter *param;
768 param = (struct rndis_config_parameter *) buf;
769 DEBUG("%s: OID_GEN_RNDIS_CONFIG_PARAMETER '%*s'\n",
771 min(cpu_to_le32(param->ParameterNameLength),80),
772 buf + param->ParameterNameOffset);
779 case OID_PNP_SET_POWER:
780 DEBUG ("OID_PNP_SET_POWER\n");
781 /* sure, handle any power state that maps to USB suspend */
785 case OID_PNP_ENABLE_WAKE_UP:
786 /* always-connected ... */
787 DEBUG ("OID_PNP_ENABLE_WAKE_UP\n");
791 // no PM resume patterns supported (specified where?)
792 // so OID_PNP_{ADD,REMOVE}_WAKE_UP_PATTERN always fails
796 printk (KERN_WARNING "%s: set unknown OID 0x%08X, size %d\n",
797 __FUNCTION__, OID, buf_len);
807 static int rndis_init_response (int configNr, rndis_init_msg_type *buf)
809 rndis_init_cmplt_type *resp;
812 if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP;
814 r = rndis_add_response (configNr, sizeof (rndis_init_cmplt_type));
816 if (!r) return -ENOMEM;
818 resp = (rndis_init_cmplt_type *) r->buf;
820 if (!resp) return -ENOMEM;
822 resp->MessageType = __constant_cpu_to_le32 (
823 REMOTE_NDIS_INITIALIZE_CMPLT);
824 resp->MessageLength = __constant_cpu_to_le32 (52);
825 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
826 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
827 resp->MajorVersion = __constant_cpu_to_le32 (RNDIS_MAJOR_VERSION);
828 resp->MinorVersion = __constant_cpu_to_le32 (RNDIS_MINOR_VERSION);
829 resp->DeviceFlags = __constant_cpu_to_le32 (RNDIS_DF_CONNECTIONLESS);
830 resp->Medium = __constant_cpu_to_le32 (RNDIS_MEDIUM_802_3);
831 resp->MaxPacketsPerTransfer = __constant_cpu_to_le32 (1);
832 resp->MaxTransferSize = cpu_to_le32 (
833 rndis_per_dev_params [configNr].dev->mtu
834 + sizeof (struct ethhdr)
835 + sizeof (struct rndis_packet_msg_type)
837 resp->PacketAlignmentFactor = __constant_cpu_to_le32 (0);
838 resp->AFListOffset = __constant_cpu_to_le32 (0);
839 resp->AFListSize = __constant_cpu_to_le32 (0);
841 if (rndis_per_dev_params [configNr].ack)
842 rndis_per_dev_params [configNr].ack (
843 rndis_per_dev_params [configNr].dev);
848 static int rndis_query_response (int configNr, rndis_query_msg_type *buf)
850 rndis_query_cmplt_type *resp;
853 // DEBUG("%s: OID = %08X\n", __FUNCTION__, cpu_to_le32(buf->OID));
854 if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP;
857 * we need more memory:
858 * oid_supported_list is the largest answer
860 r = rndis_add_response (configNr, sizeof (oid_supported_list));
862 if (!r) return -ENOMEM;
863 resp = (rndis_query_cmplt_type *) r->buf;
865 if (!resp) return -ENOMEM;
867 resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_QUERY_CMPLT);
868 resp->MessageLength = __constant_cpu_to_le32 (24);
869 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
871 if (gen_ndis_query_resp (configNr, cpu_to_le32 (buf->OID), r)) {
872 /* OID not supported */
873 resp->Status = __constant_cpu_to_le32 (
874 RNDIS_STATUS_NOT_SUPPORTED);
875 resp->InformationBufferLength = __constant_cpu_to_le32 (0);
876 resp->InformationBufferOffset = __constant_cpu_to_le32 (0);
878 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
880 if (rndis_per_dev_params [configNr].ack)
881 rndis_per_dev_params [configNr].ack (
882 rndis_per_dev_params [configNr].dev);
886 static int rndis_set_response (int configNr, rndis_set_msg_type *buf)
888 u32 BufLength, BufOffset;
889 rndis_set_cmplt_type *resp;
892 r = rndis_add_response (configNr, sizeof (rndis_set_cmplt_type));
894 if (!r) return -ENOMEM;
895 resp = (rndis_set_cmplt_type *) r->buf;
896 if (!resp) return -ENOMEM;
898 BufLength = cpu_to_le32 (buf->InformationBufferLength);
899 BufOffset = cpu_to_le32 (buf->InformationBufferOffset);
902 DEBUG("%s: Length: %d\n", __FUNCTION__, BufLength);
903 DEBUG("%s: Offset: %d\n", __FUNCTION__, BufOffset);
904 DEBUG("%s: InfoBuffer: ", __FUNCTION__);
906 for (i = 0; i < BufLength; i++) {
907 DEBUG ("%02x ", *(((u8 *) buf) + i + 8 + BufOffset));
913 resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_SET_CMPLT);
914 resp->MessageLength = __constant_cpu_to_le32 (16);
915 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
916 if (gen_ndis_set_resp (configNr, cpu_to_le32 (buf->OID),
917 ((u8 *) buf) + 8 + BufOffset, BufLength, r))
918 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_NOT_SUPPORTED);
919 else resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
921 if (rndis_per_dev_params [configNr].ack)
922 rndis_per_dev_params [configNr].ack (
923 rndis_per_dev_params [configNr].dev);
928 static int rndis_reset_response (int configNr, rndis_reset_msg_type *buf)
930 rndis_reset_cmplt_type *resp;
933 r = rndis_add_response (configNr, sizeof (rndis_reset_cmplt_type));
935 if (!r) return -ENOMEM;
936 resp = (rndis_reset_cmplt_type *) r->buf;
937 if (!resp) return -ENOMEM;
939 resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_RESET_CMPLT);
940 resp->MessageLength = __constant_cpu_to_le32 (16);
941 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
942 /* resent information */
943 resp->AddressingReset = __constant_cpu_to_le32 (1);
945 if (rndis_per_dev_params [configNr].ack)
946 rndis_per_dev_params [configNr].ack (
947 rndis_per_dev_params [configNr].dev);
952 static int rndis_keepalive_response (int configNr,
953 rndis_keepalive_msg_type *buf)
955 rndis_keepalive_cmplt_type *resp;
958 /* host "should" check only in RNDIS_DATA_INITIALIZED state */
960 r = rndis_add_response (configNr, sizeof (rndis_keepalive_cmplt_type));
961 resp = (rndis_keepalive_cmplt_type *) r->buf;
962 if (!resp) return -ENOMEM;
964 resp->MessageType = __constant_cpu_to_le32 (
965 REMOTE_NDIS_KEEPALIVE_CMPLT);
966 resp->MessageLength = __constant_cpu_to_le32 (16);
967 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
968 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
970 if (rndis_per_dev_params [configNr].ack)
971 rndis_per_dev_params [configNr].ack (
972 rndis_per_dev_params [configNr].dev);
979 * Device to Host Comunication
981 static int rndis_indicate_status_msg (int configNr, u32 status)
983 rndis_indicate_status_msg_type *resp;
986 if (rndis_per_dev_params [configNr].state == RNDIS_UNINITIALIZED)
989 r = rndis_add_response (configNr,
990 sizeof (rndis_indicate_status_msg_type));
991 if (!r) return -ENOMEM;
993 resp = (rndis_indicate_status_msg_type *) r->buf;
994 if (!resp) return -ENOMEM;
996 resp->MessageType = __constant_cpu_to_le32 (
997 REMOTE_NDIS_INDICATE_STATUS_MSG);
998 resp->MessageLength = __constant_cpu_to_le32 (20);
999 resp->Status = cpu_to_le32 (status);
1000 resp->StatusBufferLength = __constant_cpu_to_le32 (0);
1001 resp->StatusBufferOffset = __constant_cpu_to_le32 (0);
1003 if (rndis_per_dev_params [configNr].ack)
1004 rndis_per_dev_params [configNr].ack (
1005 rndis_per_dev_params [configNr].dev);
1009 int rndis_signal_connect (int configNr)
1011 rndis_per_dev_params [configNr].media_state
1012 = NDIS_MEDIA_STATE_CONNECTED;
1013 return rndis_indicate_status_msg (configNr,
1014 RNDIS_STATUS_MEDIA_CONNECT);
1017 int rndis_signal_disconnect (int configNr)
1019 rndis_per_dev_params [configNr].media_state
1020 = NDIS_MEDIA_STATE_DISCONNECTED;
1021 return rndis_indicate_status_msg (configNr,
1022 RNDIS_STATUS_MEDIA_DISCONNECT);
1025 void rndis_set_host_mac (int configNr, const u8 *addr)
1027 rndis_per_dev_params [configNr].host_mac = addr;
1033 int rndis_msg_parser (u8 configNr, u8 *buf)
1035 u32 MsgType, MsgLength, *tmp;
1036 struct rndis_params *params;
1042 MsgType = cpu_to_le32p(tmp++);
1043 MsgLength = cpu_to_le32p(tmp++);
1045 if (configNr >= RNDIS_MAX_CONFIGS)
1047 params = &rndis_per_dev_params [configNr];
1049 /* For USB: responses may take up to 10 seconds */
1052 case REMOTE_NDIS_INITIALIZE_MSG:
1053 DEBUG("%s: REMOTE_NDIS_INITIALIZE_MSG\n",
1055 params->state = RNDIS_INITIALIZED;
1056 return rndis_init_response (configNr,
1057 (rndis_init_msg_type *) buf);
1059 case REMOTE_NDIS_HALT_MSG:
1060 DEBUG("%s: REMOTE_NDIS_HALT_MSG\n",
1062 params->state = RNDIS_UNINITIALIZED;
1064 netif_carrier_off (params->dev);
1065 netif_stop_queue (params->dev);
1069 case REMOTE_NDIS_QUERY_MSG:
1070 return rndis_query_response (configNr,
1071 (rndis_query_msg_type *) buf);
1073 case REMOTE_NDIS_SET_MSG:
1074 return rndis_set_response (configNr,
1075 (rndis_set_msg_type *) buf);
1077 case REMOTE_NDIS_RESET_MSG:
1078 DEBUG("%s: REMOTE_NDIS_RESET_MSG\n",
1080 return rndis_reset_response (configNr,
1081 (rndis_reset_msg_type *) buf);
1083 case REMOTE_NDIS_KEEPALIVE_MSG:
1084 /* For USB: host does this every 5 seconds */
1086 DEBUG("%s: REMOTE_NDIS_KEEPALIVE_MSG\n",
1089 return rndis_keepalive_response (configNr,
1090 (rndis_keepalive_msg_type *)
1094 /* At least Windows XP emits some undefined RNDIS messages.
1095 * In one case those messages seemed to relate to the host
1096 * suspending itself.
1098 printk (KERN_WARNING
1099 "%s: unknown RNDIS message 0x%08X len %d\n",
1100 __FUNCTION__ , MsgType, MsgLength);
1103 for (i = 0; i < MsgLength; i += 16) {
1105 " %02x %02x %02x %02x"
1106 " %02x %02x %02x %02x"
1107 " %02x %02x %02x %02x"
1108 " %02x %02x %02x %02x"
1113 buf[i+4], buf [i+5],
1115 buf[i+8], buf [i+9],
1116 buf[i+10], buf[i+11],
1117 buf[i+12], buf [i+13],
1118 buf[i+14], buf[i+15]);
1127 int rndis_register (int (* rndis_control_ack) (struct net_device *))
1131 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1132 if (!rndis_per_dev_params [i].used) {
1133 rndis_per_dev_params [i].used = 1;
1134 rndis_per_dev_params [i].ack = rndis_control_ack;
1135 DEBUG("%s: configNr = %d\n", __FUNCTION__, i);
1144 void rndis_deregister (int configNr)
1146 DEBUG("%s: \n", __FUNCTION__ );
1148 if (configNr >= RNDIS_MAX_CONFIGS) return;
1149 rndis_per_dev_params [configNr].used = 0;
1154 int rndis_set_param_dev (u8 configNr, struct net_device *dev,
1155 struct net_device_stats *stats)
1157 DEBUG("%s:\n", __FUNCTION__ );
1158 if (!dev || !stats) return -1;
1159 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
1161 rndis_per_dev_params [configNr].dev = dev;
1162 rndis_per_dev_params [configNr].stats = stats;
1167 int rndis_set_param_vendor (u8 configNr, u32 vendorID, const char *vendorDescr)
1169 DEBUG("%s:\n", __FUNCTION__ );
1170 if (!vendorDescr) return -1;
1171 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
1173 rndis_per_dev_params [configNr].vendorID = vendorID;
1174 rndis_per_dev_params [configNr].vendorDescr = vendorDescr;
1179 int rndis_set_param_medium (u8 configNr, u32 medium, u32 speed)
1181 DEBUG("%s:\n", __FUNCTION__ );
1182 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
1184 rndis_per_dev_params [configNr].medium = medium;
1185 rndis_per_dev_params [configNr].speed = speed;
1190 void rndis_add_hdr (struct sk_buff *skb)
1193 skb_push (skb, sizeof (struct rndis_packet_msg_type));
1194 memset (skb->data, 0, sizeof (struct rndis_packet_msg_type));
1195 *((u32 *) skb->data) = __constant_cpu_to_le32 (1);
1196 *((u32 *) skb->data + 1) = cpu_to_le32(skb->len);
1197 *((u32 *) skb->data + 2) = __constant_cpu_to_le32 (36);
1198 *((u32 *) skb->data + 3) = cpu_to_le32(skb->len - 44);
1203 void rndis_free_response (int configNr, u8 *buf)
1206 struct list_head *act, *tmp;
1208 list_for_each_safe (act, tmp,
1209 &(rndis_per_dev_params [configNr].resp_queue))
1211 r = list_entry (act, rndis_resp_t, list);
1212 if (r && r->buf == buf) {
1213 list_del (&r->list);
1219 u8 *rndis_get_next_response (int configNr, u32 *length)
1222 struct list_head *act, *tmp;
1224 if (!length) return NULL;
1226 list_for_each_safe (act, tmp,
1227 &(rndis_per_dev_params [configNr].resp_queue))
1229 r = list_entry (act, rndis_resp_t, list);
1232 *length = r->length;
1240 static rndis_resp_t *rndis_add_response (int configNr, u32 length)
1244 r = kmalloc (sizeof (rndis_resp_t) + length, GFP_ATOMIC);
1245 if (!r) return NULL;
1247 r->buf = (u8 *) (r + 1);
1251 list_add_tail (&r->list,
1252 &(rndis_per_dev_params [configNr].resp_queue));
1256 int rndis_rm_hdr (u8 *buf, u32 *length)
1258 u32 i, messageLen, dataOffset, *tmp;
1262 if (!buf || !length) return -1;
1263 if (cpu_to_le32p(tmp++) != 1) return -1;
1265 messageLen = cpu_to_le32p(tmp++);
1266 dataOffset = cpu_to_le32p(tmp++) + 8;
1268 if (messageLen < dataOffset || messageLen > *length) return -1;
1270 for (i = dataOffset; i < messageLen; i++)
1271 buf [i - dataOffset] = buf [i];
1273 *length = messageLen - dataOffset;
1278 int rndis_proc_read (char *page, char **start, off_t off, int count, int *eof,
1283 rndis_params *param = (rndis_params *) data;
1285 out += snprintf (out, count,
1292 "vendor ID : 0x%08X\n"
1294 param->confignr, (param->used) ? "y" : "n",
1296 switch (param->state) {
1297 case RNDIS_UNINITIALIZED:
1298 s = "RNDIS_UNINITIALIZED"; break;
1299 case RNDIS_INITIALIZED:
1300 s = "RNDIS_INITIALIZED"; break;
1301 case RNDIS_DATA_INITIALIZED:
1302 s = "RNDIS_DATA_INITIALIZED"; break;
1305 (param->media_state) ? 0 : param->speed*100,
1306 (param->media_state) ? "disconnected" : "connected",
1307 param->vendorID, param->vendorDescr);
1319 *start = page + off;
1323 int rndis_proc_write (struct file *file, const char __user *buffer,
1324 unsigned long count, void *data)
1326 rndis_params *p = data;
1328 int i, fl_speed = 0;
1330 for (i = 0; i < count; i++) {
1332 if (get_user(c, buffer))
1346 speed = speed*10 + c - '0';
1350 rndis_signal_connect (p->confignr);
1354 rndis_signal_disconnect(p->confignr);
1357 if (fl_speed) p->speed = speed;
1358 else DEBUG ("%c is not valid\n", c);
1368 int __init rndis_init (void)
1373 /* FIXME this should probably be /proc/driver/rndis,
1374 * and only if debugging is enabled
1377 if (!(rndis_connect_dir = proc_mkdir ("rndis", NULL))) {
1378 printk (KERN_ERR "%s: couldn't create /proc/rndis entry",
1383 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1384 sprintf (name, "%03d", i);
1385 if (!(rndis_connect_state [i]
1386 = create_proc_entry (name, 0660,
1387 rndis_connect_dir)))
1389 DEBUG ("%s :remove entries", __FUNCTION__);
1390 for (i--; i > 0; i--) {
1391 sprintf (name, "%03d", i);
1392 remove_proc_entry (name, rndis_connect_dir);
1396 remove_proc_entry ("000", rndis_connect_dir);
1397 remove_proc_entry ("rndis", NULL);
1400 rndis_connect_state [i]->nlink = 1;
1401 rndis_connect_state [i]->write_proc = rndis_proc_write;
1402 rndis_connect_state [i]->read_proc = rndis_proc_read;
1403 rndis_connect_state [i]->data = (void *)
1404 (rndis_per_dev_params + i);
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));
1416 void rndis_exit (void)
1421 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1422 sprintf (name, "%03d", i);
1423 remove_proc_entry (name, rndis_connect_dir);
1425 remove_proc_entry ("rndis", NULL);