4 * Authors: Benedikt Spranger, Pengutronix
5 * Robert Schwebel, Pengutronix
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * version 2, as published by the Free Software Foundation.
11 * This software was originally developed in conformance with
12 * Microsoft's Remote NDIS Specification License Agreement.
14 * 03/12/2004 Kai-Uwe Bloem <linux-development@auerswald.de>
15 * Fixed message length bug in init_response
17 * 03/25/2004 Kai-Uwe Bloem <linux-development@auerswald.de>
18 * Fixed rndis_rm_hdr length bug.
20 * Copyright (C) 2004 by David Brownell
21 * updates to merge with Linux 2.6, better match RNDIS spec
24 #include <linux/module.h>
25 #include <linux/moduleparam.h>
26 #include <linux/kernel.h>
27 #include <linux/errno.h>
28 #include <linux/init.h>
29 #include <linux/list.h>
30 #include <linux/proc_fs.h>
31 #include <linux/slab.h>
32 #include <linux/seq_file.h>
33 #include <linux/netdevice.h>
36 #include <asm/byteorder.h>
37 #include <asm/system.h>
38 #include <asm/unaligned.h>
46 /* The driver for your USB chip needs to support ep0 OUT to work with
47 * RNDIS, plus all three CDC Ethernet endpoints (interrupt not optional).
49 * Windows hosts need an INF file like Documentation/usb/linux.inf
50 * and will be happier if you provide the host_addr module parameter.
54 static int rndis_debug = 0;
55 module_param (rndis_debug, int, 0);
56 MODULE_PARM_DESC (rndis_debug, "enable debugging");
61 #define RNDIS_MAX_CONFIGS 1
64 static rndis_params rndis_per_dev_params [RNDIS_MAX_CONFIGS];
67 static const __le32 rndis_driver_version = cpu_to_le32 (1);
69 /* Function Prototypes */
70 static rndis_resp_t *rndis_add_response (int configNr, u32 length);
74 static const u32 oid_supported_list [] =
76 /* the general stuff */
77 OID_GEN_SUPPORTED_LIST,
78 OID_GEN_HARDWARE_STATUS,
79 OID_GEN_MEDIA_SUPPORTED,
81 OID_GEN_MAXIMUM_FRAME_SIZE,
83 OID_GEN_TRANSMIT_BLOCK_SIZE,
84 OID_GEN_RECEIVE_BLOCK_SIZE,
86 OID_GEN_VENDOR_DESCRIPTION,
87 OID_GEN_VENDOR_DRIVER_VERSION,
88 OID_GEN_CURRENT_PACKET_FILTER,
89 OID_GEN_MAXIMUM_TOTAL_SIZE,
90 OID_GEN_MEDIA_CONNECT_STATUS,
91 OID_GEN_PHYSICAL_MEDIUM,
93 /* the statistical stuff */
98 OID_GEN_RCV_NO_BUFFER,
99 #ifdef RNDIS_OPTIONAL_STATS
100 OID_GEN_DIRECTED_BYTES_XMIT,
101 OID_GEN_DIRECTED_FRAMES_XMIT,
102 OID_GEN_MULTICAST_BYTES_XMIT,
103 OID_GEN_MULTICAST_FRAMES_XMIT,
104 OID_GEN_BROADCAST_BYTES_XMIT,
105 OID_GEN_BROADCAST_FRAMES_XMIT,
106 OID_GEN_DIRECTED_BYTES_RCV,
107 OID_GEN_DIRECTED_FRAMES_RCV,
108 OID_GEN_MULTICAST_BYTES_RCV,
109 OID_GEN_MULTICAST_FRAMES_RCV,
110 OID_GEN_BROADCAST_BYTES_RCV,
111 OID_GEN_BROADCAST_FRAMES_RCV,
112 OID_GEN_RCV_CRC_ERROR,
113 OID_GEN_TRANSMIT_QUEUE_LENGTH,
114 #endif /* RNDIS_OPTIONAL_STATS */
116 /* mandatory 802.3 */
117 /* the general stuff */
118 OID_802_3_PERMANENT_ADDRESS,
119 OID_802_3_CURRENT_ADDRESS,
120 OID_802_3_MULTICAST_LIST,
121 OID_802_3_MAC_OPTIONS,
122 OID_802_3_MAXIMUM_LIST_SIZE,
124 /* the statistical stuff */
125 OID_802_3_RCV_ERROR_ALIGNMENT,
126 OID_802_3_XMIT_ONE_COLLISION,
127 OID_802_3_XMIT_MORE_COLLISIONS,
128 #ifdef RNDIS_OPTIONAL_STATS
129 OID_802_3_XMIT_DEFERRED,
130 OID_802_3_XMIT_MAX_COLLISIONS,
131 OID_802_3_RCV_OVERRUN,
132 OID_802_3_XMIT_UNDERRUN,
133 OID_802_3_XMIT_HEARTBEAT_FAILURE,
134 OID_802_3_XMIT_TIMES_CRS_LOST,
135 OID_802_3_XMIT_LATE_COLLISIONS,
136 #endif /* RNDIS_OPTIONAL_STATS */
139 /* PM and wakeup are "mandatory" for USB, but the RNDIS specs
140 * don't say what they mean ... and the NDIS specs are often
141 * confusing and/or ambiguous in this context. (That is, more
142 * so than their specs for the other OIDs.)
144 * FIXME someone who knows what these should do, please
148 /* power management */
149 OID_PNP_CAPABILITIES,
155 OID_PNP_ENABLE_WAKE_UP,
156 OID_PNP_ADD_WAKE_UP_PATTERN,
157 OID_PNP_REMOVE_WAKE_UP_PATTERN,
158 #endif /* RNDIS_WAKEUP */
159 #endif /* RNDIS_PM */
165 gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
168 int retval = -ENOTSUPP;
169 u32 length = 4; /* usually */
172 rndis_query_cmplt_type *resp;
173 struct net_device *net;
174 struct rtnl_link_stats64 temp;
175 const struct rtnl_link_stats64 *stats;
177 if (!r) return -ENOMEM;
178 resp = (rndis_query_cmplt_type *) r->buf;
180 if (!resp) return -ENOMEM;
182 if (buf_len && rndis_debug > 1) {
183 pr_debug("query OID %08x value, len %d:\n", OID, buf_len);
184 for (i = 0; i < buf_len; i += 16) {
185 pr_debug("%03d: %08x %08x %08x %08x\n", i,
186 get_unaligned_le32(&buf[i]),
187 get_unaligned_le32(&buf[i + 4]),
188 get_unaligned_le32(&buf[i + 8]),
189 get_unaligned_le32(&buf[i + 12]));
193 /* response goes here, right after the header */
194 outbuf = (__le32 *) &resp[1];
195 resp->InformationBufferOffset = cpu_to_le32 (16);
197 net = rndis_per_dev_params[configNr].dev;
198 stats = dev_get_stats(net, &temp);
202 /* general oids (table 4-1) */
205 case OID_GEN_SUPPORTED_LIST:
206 pr_debug("%s: OID_GEN_SUPPORTED_LIST\n", __func__);
207 length = sizeof (oid_supported_list);
208 count = length / sizeof (u32);
209 for (i = 0; i < count; i++)
210 outbuf[i] = cpu_to_le32 (oid_supported_list[i]);
215 case OID_GEN_HARDWARE_STATUS:
216 pr_debug("%s: OID_GEN_HARDWARE_STATUS\n", __func__);
218 * Hardware must be ready to receive high level protocols.
220 * reddite ergo quae sunt Caesaris Caesari
221 * et quae sunt Dei Deo!
223 *outbuf = cpu_to_le32 (0);
228 case OID_GEN_MEDIA_SUPPORTED:
229 pr_debug("%s: OID_GEN_MEDIA_SUPPORTED\n", __func__);
230 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr].medium);
235 case OID_GEN_MEDIA_IN_USE:
236 pr_debug("%s: OID_GEN_MEDIA_IN_USE\n", __func__);
237 /* one medium, one transport... (maybe you do it better) */
238 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr].medium);
243 case OID_GEN_MAXIMUM_FRAME_SIZE:
244 pr_debug("%s: OID_GEN_MAXIMUM_FRAME_SIZE\n", __func__);
245 if (rndis_per_dev_params [configNr].dev) {
246 *outbuf = cpu_to_le32 (
247 rndis_per_dev_params [configNr].dev->mtu);
253 case OID_GEN_LINK_SPEED:
255 pr_debug("%s: OID_GEN_LINK_SPEED\n", __func__);
256 if (rndis_per_dev_params [configNr].media_state
257 == NDIS_MEDIA_STATE_DISCONNECTED)
258 *outbuf = cpu_to_le32 (0);
260 *outbuf = cpu_to_le32 (
261 rndis_per_dev_params [configNr].speed);
266 case OID_GEN_TRANSMIT_BLOCK_SIZE:
267 pr_debug("%s: OID_GEN_TRANSMIT_BLOCK_SIZE\n", __func__);
268 if (rndis_per_dev_params [configNr].dev) {
269 *outbuf = cpu_to_le32 (
270 rndis_per_dev_params [configNr].dev->mtu);
276 case OID_GEN_RECEIVE_BLOCK_SIZE:
277 pr_debug("%s: OID_GEN_RECEIVE_BLOCK_SIZE\n", __func__);
278 if (rndis_per_dev_params [configNr].dev) {
279 *outbuf = cpu_to_le32 (
280 rndis_per_dev_params [configNr].dev->mtu);
286 case OID_GEN_VENDOR_ID:
287 pr_debug("%s: OID_GEN_VENDOR_ID\n", __func__);
288 *outbuf = cpu_to_le32 (
289 rndis_per_dev_params [configNr].vendorID);
294 case OID_GEN_VENDOR_DESCRIPTION:
295 pr_debug("%s: OID_GEN_VENDOR_DESCRIPTION\n", __func__);
296 if ( rndis_per_dev_params [configNr].vendorDescr ) {
297 length = strlen (rndis_per_dev_params [configNr].vendorDescr);
299 rndis_per_dev_params [configNr].vendorDescr, length);
306 case OID_GEN_VENDOR_DRIVER_VERSION:
307 pr_debug("%s: OID_GEN_VENDOR_DRIVER_VERSION\n", __func__);
309 *outbuf = rndis_driver_version;
314 case OID_GEN_CURRENT_PACKET_FILTER:
315 pr_debug("%s: OID_GEN_CURRENT_PACKET_FILTER\n", __func__);
316 *outbuf = cpu_to_le32 (*rndis_per_dev_params[configNr].filter);
321 case OID_GEN_MAXIMUM_TOTAL_SIZE:
322 pr_debug("%s: OID_GEN_MAXIMUM_TOTAL_SIZE\n", __func__);
323 *outbuf = cpu_to_le32(RNDIS_MAX_TOTAL_SIZE);
328 case OID_GEN_MEDIA_CONNECT_STATUS:
330 pr_debug("%s: OID_GEN_MEDIA_CONNECT_STATUS\n", __func__);
331 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
336 case OID_GEN_PHYSICAL_MEDIUM:
337 pr_debug("%s: OID_GEN_PHYSICAL_MEDIUM\n", __func__);
338 *outbuf = cpu_to_le32 (0);
342 /* The RNDIS specification is incomplete/wrong. Some versions
343 * of MS-Windows expect OIDs that aren't specified there. Other
344 * versions emit undefined RNDIS messages. DOCUMENT ALL THESE!
346 case OID_GEN_MAC_OPTIONS: /* from WinME */
347 pr_debug("%s: OID_GEN_MAC_OPTIONS\n", __func__);
348 *outbuf = cpu_to_le32(
349 NDIS_MAC_OPTION_RECEIVE_SERIALIZED
350 | NDIS_MAC_OPTION_FULL_DUPLEX);
354 /* statistics OIDs (table 4-2) */
357 case OID_GEN_XMIT_OK:
359 pr_debug("%s: OID_GEN_XMIT_OK\n", __func__);
361 *outbuf = cpu_to_le32(stats->tx_packets
362 - stats->tx_errors - stats->tx_dropped);
370 pr_debug("%s: OID_GEN_RCV_OK\n", __func__);
372 *outbuf = cpu_to_le32(stats->rx_packets
373 - stats->rx_errors - stats->rx_dropped);
379 case OID_GEN_XMIT_ERROR:
381 pr_debug("%s: OID_GEN_XMIT_ERROR\n", __func__);
383 *outbuf = cpu_to_le32(stats->tx_errors);
389 case OID_GEN_RCV_ERROR:
391 pr_debug("%s: OID_GEN_RCV_ERROR\n", __func__);
393 *outbuf = cpu_to_le32(stats->rx_errors);
399 case OID_GEN_RCV_NO_BUFFER:
400 pr_debug("%s: OID_GEN_RCV_NO_BUFFER\n", __func__);
402 *outbuf = cpu_to_le32(stats->rx_dropped);
407 /* ieee802.3 OIDs (table 4-3) */
410 case OID_802_3_PERMANENT_ADDRESS:
411 pr_debug("%s: OID_802_3_PERMANENT_ADDRESS\n", __func__);
412 if (rndis_per_dev_params [configNr].dev) {
415 rndis_per_dev_params [configNr].host_mac,
422 case OID_802_3_CURRENT_ADDRESS:
423 pr_debug("%s: OID_802_3_CURRENT_ADDRESS\n", __func__);
424 if (rndis_per_dev_params [configNr].dev) {
427 rndis_per_dev_params [configNr].host_mac,
434 case OID_802_3_MULTICAST_LIST:
435 pr_debug("%s: OID_802_3_MULTICAST_LIST\n", __func__);
436 /* Multicast base address only */
437 *outbuf = cpu_to_le32 (0xE0000000);
442 case OID_802_3_MAXIMUM_LIST_SIZE:
443 pr_debug("%s: OID_802_3_MAXIMUM_LIST_SIZE\n", __func__);
444 /* Multicast base address only */
445 *outbuf = cpu_to_le32 (1);
449 case OID_802_3_MAC_OPTIONS:
450 pr_debug("%s: OID_802_3_MAC_OPTIONS\n", __func__);
451 *outbuf = cpu_to_le32(0);
455 /* ieee802.3 statistics OIDs (table 4-4) */
458 case OID_802_3_RCV_ERROR_ALIGNMENT:
459 pr_debug("%s: OID_802_3_RCV_ERROR_ALIGNMENT\n", __func__);
461 *outbuf = cpu_to_le32(stats->rx_frame_errors);
467 case OID_802_3_XMIT_ONE_COLLISION:
468 pr_debug("%s: OID_802_3_XMIT_ONE_COLLISION\n", __func__);
469 *outbuf = cpu_to_le32 (0);
474 case OID_802_3_XMIT_MORE_COLLISIONS:
475 pr_debug("%s: OID_802_3_XMIT_MORE_COLLISIONS\n", __func__);
476 *outbuf = cpu_to_le32 (0);
481 pr_warning("%s: query unknown OID 0x%08X\n",
487 resp->InformationBufferLength = cpu_to_le32 (length);
488 r->length = length + sizeof *resp;
489 resp->MessageLength = cpu_to_le32 (r->length);
493 static int gen_ndis_set_resp (u8 configNr, u32 OID, u8 *buf, u32 buf_len,
496 rndis_set_cmplt_type *resp;
497 int i, retval = -ENOTSUPP;
498 struct rndis_params *params;
502 resp = (rndis_set_cmplt_type *) r->buf;
506 if (buf_len && rndis_debug > 1) {
507 pr_debug("set OID %08x value, len %d:\n", OID, buf_len);
508 for (i = 0; i < buf_len; i += 16) {
509 pr_debug("%03d: %08x %08x %08x %08x\n", i,
510 get_unaligned_le32(&buf[i]),
511 get_unaligned_le32(&buf[i + 4]),
512 get_unaligned_le32(&buf[i + 8]),
513 get_unaligned_le32(&buf[i + 12]));
517 params = &rndis_per_dev_params [configNr];
519 case OID_GEN_CURRENT_PACKET_FILTER:
521 /* these NDIS_PACKET_TYPE_* bitflags are shared with
522 * cdc_filter; it's not RNDIS-specific
523 * NDIS_PACKET_TYPE_x == USB_CDC_PACKET_TYPE_x for x in:
524 * PROMISCUOUS, DIRECTED,
525 * MULTICAST, ALL_MULTICAST, BROADCAST
527 *params->filter = (u16)get_unaligned_le32(buf);
528 pr_debug("%s: OID_GEN_CURRENT_PACKET_FILTER %08x\n",
529 __func__, *params->filter);
531 /* this call has a significant side effect: it's
532 * what makes the packet flow start and stop, like
533 * activating the CDC Ethernet altsetting.
536 if (*params->filter) {
537 params->state = RNDIS_DATA_INITIALIZED;
538 netif_carrier_on(params->dev);
539 if (netif_running(params->dev))
540 netif_wake_queue (params->dev);
542 params->state = RNDIS_INITIALIZED;
543 netif_carrier_off (params->dev);
544 netif_stop_queue (params->dev);
548 case OID_802_3_MULTICAST_LIST:
549 /* I think we can ignore this */
550 pr_debug("%s: OID_802_3_MULTICAST_LIST\n", __func__);
555 pr_warning("%s: set unknown OID 0x%08X, size %d\n",
556 __func__, OID, buf_len);
566 static int rndis_init_response (int configNr, rndis_init_msg_type *buf)
568 rndis_init_cmplt_type *resp;
570 struct rndis_params *params = rndis_per_dev_params + configNr;
575 r = rndis_add_response (configNr, sizeof (rndis_init_cmplt_type));
578 resp = (rndis_init_cmplt_type *) r->buf;
580 resp->MessageType = cpu_to_le32 (
581 REMOTE_NDIS_INITIALIZE_CMPLT);
582 resp->MessageLength = cpu_to_le32 (52);
583 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
584 resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
585 resp->MajorVersion = cpu_to_le32 (RNDIS_MAJOR_VERSION);
586 resp->MinorVersion = cpu_to_le32 (RNDIS_MINOR_VERSION);
587 resp->DeviceFlags = cpu_to_le32 (RNDIS_DF_CONNECTIONLESS);
588 resp->Medium = cpu_to_le32 (RNDIS_MEDIUM_802_3);
589 resp->MaxPacketsPerTransfer = cpu_to_le32 (1);
590 resp->MaxTransferSize = cpu_to_le32 (
592 + sizeof (struct ethhdr)
593 + sizeof (struct rndis_packet_msg_type)
595 resp->PacketAlignmentFactor = cpu_to_le32 (0);
596 resp->AFListOffset = cpu_to_le32 (0);
597 resp->AFListSize = cpu_to_le32 (0);
599 params->resp_avail(params->v);
603 static int rndis_query_response (int configNr, rndis_query_msg_type *buf)
605 rndis_query_cmplt_type *resp;
607 struct rndis_params *params = rndis_per_dev_params + configNr;
609 /* pr_debug("%s: OID = %08X\n", __func__, cpu_to_le32(buf->OID)); */
614 * we need more memory:
615 * gen_ndis_query_resp expects enough space for
616 * rndis_query_cmplt_type followed by data.
617 * oid_supported_list is the largest data reply
619 r = rndis_add_response (configNr,
620 sizeof (oid_supported_list) + sizeof(rndis_query_cmplt_type));
623 resp = (rndis_query_cmplt_type *) r->buf;
625 resp->MessageType = cpu_to_le32 (REMOTE_NDIS_QUERY_CMPLT);
626 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
628 if (gen_ndis_query_resp (configNr, le32_to_cpu (buf->OID),
629 le32_to_cpu(buf->InformationBufferOffset)
631 le32_to_cpu(buf->InformationBufferLength),
633 /* OID not supported */
634 resp->Status = cpu_to_le32 (
635 RNDIS_STATUS_NOT_SUPPORTED);
636 resp->MessageLength = cpu_to_le32 (sizeof *resp);
637 resp->InformationBufferLength = cpu_to_le32 (0);
638 resp->InformationBufferOffset = cpu_to_le32 (0);
640 resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
642 params->resp_avail(params->v);
646 static int rndis_set_response (int configNr, rndis_set_msg_type *buf)
648 u32 BufLength, BufOffset;
649 rndis_set_cmplt_type *resp;
651 struct rndis_params *params = rndis_per_dev_params + configNr;
653 r = rndis_add_response (configNr, sizeof (rndis_set_cmplt_type));
656 resp = (rndis_set_cmplt_type *) r->buf;
658 BufLength = le32_to_cpu (buf->InformationBufferLength);
659 BufOffset = le32_to_cpu (buf->InformationBufferOffset);
662 pr_debug("%s: Length: %d\n", __func__, BufLength);
663 pr_debug("%s: Offset: %d\n", __func__, BufOffset);
664 pr_debug("%s: InfoBuffer: ", __func__);
666 for (i = 0; i < BufLength; i++) {
667 pr_debug("%02x ", *(((u8 *) buf) + i + 8 + BufOffset));
673 resp->MessageType = cpu_to_le32 (REMOTE_NDIS_SET_CMPLT);
674 resp->MessageLength = cpu_to_le32 (16);
675 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
676 if (gen_ndis_set_resp (configNr, le32_to_cpu (buf->OID),
677 ((u8 *) buf) + 8 + BufOffset, BufLength, r))
678 resp->Status = cpu_to_le32 (RNDIS_STATUS_NOT_SUPPORTED);
680 resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
682 params->resp_avail(params->v);
686 static int rndis_reset_response (int configNr, rndis_reset_msg_type *buf)
688 rndis_reset_cmplt_type *resp;
690 struct rndis_params *params = rndis_per_dev_params + configNr;
692 r = rndis_add_response (configNr, sizeof (rndis_reset_cmplt_type));
695 resp = (rndis_reset_cmplt_type *) r->buf;
697 resp->MessageType = cpu_to_le32 (REMOTE_NDIS_RESET_CMPLT);
698 resp->MessageLength = cpu_to_le32 (16);
699 resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
700 /* resent information */
701 resp->AddressingReset = cpu_to_le32 (1);
703 params->resp_avail(params->v);
707 static int rndis_keepalive_response (int configNr,
708 rndis_keepalive_msg_type *buf)
710 rndis_keepalive_cmplt_type *resp;
712 struct rndis_params *params = rndis_per_dev_params + configNr;
714 /* host "should" check only in RNDIS_DATA_INITIALIZED state */
716 r = rndis_add_response (configNr, sizeof (rndis_keepalive_cmplt_type));
719 resp = (rndis_keepalive_cmplt_type *) r->buf;
721 resp->MessageType = cpu_to_le32 (
722 REMOTE_NDIS_KEEPALIVE_CMPLT);
723 resp->MessageLength = cpu_to_le32 (16);
724 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
725 resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
727 params->resp_avail(params->v);
733 * Device to Host Comunication
735 static int rndis_indicate_status_msg (int configNr, u32 status)
737 rndis_indicate_status_msg_type *resp;
739 struct rndis_params *params = rndis_per_dev_params + configNr;
741 if (params->state == RNDIS_UNINITIALIZED)
744 r = rndis_add_response (configNr,
745 sizeof (rndis_indicate_status_msg_type));
748 resp = (rndis_indicate_status_msg_type *) r->buf;
750 resp->MessageType = cpu_to_le32 (
751 REMOTE_NDIS_INDICATE_STATUS_MSG);
752 resp->MessageLength = cpu_to_le32 (20);
753 resp->Status = cpu_to_le32 (status);
754 resp->StatusBufferLength = cpu_to_le32 (0);
755 resp->StatusBufferOffset = cpu_to_le32 (0);
757 params->resp_avail(params->v);
761 int rndis_signal_connect (int configNr)
763 rndis_per_dev_params [configNr].media_state
764 = NDIS_MEDIA_STATE_CONNECTED;
765 return rndis_indicate_status_msg (configNr,
766 RNDIS_STATUS_MEDIA_CONNECT);
769 int rndis_signal_disconnect (int configNr)
771 rndis_per_dev_params [configNr].media_state
772 = NDIS_MEDIA_STATE_DISCONNECTED;
773 return rndis_indicate_status_msg (configNr,
774 RNDIS_STATUS_MEDIA_DISCONNECT);
777 void rndis_uninit (int configNr)
782 if (configNr >= RNDIS_MAX_CONFIGS)
784 rndis_per_dev_params [configNr].state = RNDIS_UNINITIALIZED;
786 /* drain the response queue */
787 while ((buf = rndis_get_next_response(configNr, &length)))
788 rndis_free_response(configNr, buf);
791 void rndis_set_host_mac (int configNr, const u8 *addr)
793 rndis_per_dev_params [configNr].host_mac = addr;
799 int rndis_msg_parser (u8 configNr, u8 *buf)
801 u32 MsgType, MsgLength;
803 struct rndis_params *params;
808 tmp = (__le32 *) buf;
809 MsgType = get_unaligned_le32(tmp++);
810 MsgLength = get_unaligned_le32(tmp++);
812 if (configNr >= RNDIS_MAX_CONFIGS)
814 params = &rndis_per_dev_params [configNr];
816 /* NOTE: RNDIS is *EXTREMELY* chatty ... Windows constantly polls for
817 * rx/tx statistics and link status, in addition to KEEPALIVE traffic
818 * and normal HC level polling to see if there's any IN traffic.
821 /* For USB: responses may take up to 10 seconds */
823 case REMOTE_NDIS_INITIALIZE_MSG:
824 pr_debug("%s: REMOTE_NDIS_INITIALIZE_MSG\n",
826 params->state = RNDIS_INITIALIZED;
827 return rndis_init_response (configNr,
828 (rndis_init_msg_type *) buf);
830 case REMOTE_NDIS_HALT_MSG:
831 pr_debug("%s: REMOTE_NDIS_HALT_MSG\n",
833 params->state = RNDIS_UNINITIALIZED;
835 netif_carrier_off (params->dev);
836 netif_stop_queue (params->dev);
840 case REMOTE_NDIS_QUERY_MSG:
841 return rndis_query_response (configNr,
842 (rndis_query_msg_type *) buf);
844 case REMOTE_NDIS_SET_MSG:
845 return rndis_set_response (configNr,
846 (rndis_set_msg_type *) buf);
848 case REMOTE_NDIS_RESET_MSG:
849 pr_debug("%s: REMOTE_NDIS_RESET_MSG\n",
851 return rndis_reset_response (configNr,
852 (rndis_reset_msg_type *) buf);
854 case REMOTE_NDIS_KEEPALIVE_MSG:
855 /* For USB: host does this every 5 seconds */
857 pr_debug("%s: REMOTE_NDIS_KEEPALIVE_MSG\n",
859 return rndis_keepalive_response (configNr,
860 (rndis_keepalive_msg_type *)
864 /* At least Windows XP emits some undefined RNDIS messages.
865 * In one case those messages seemed to relate to the host
868 pr_warning("%s: unknown RNDIS message 0x%08X len %d\n",
869 __func__ , MsgType, MsgLength);
872 for (i = 0; i < MsgLength; i += 16) {
874 " %02x %02x %02x %02x"
875 " %02x %02x %02x %02x"
876 " %02x %02x %02x %02x"
877 " %02x %02x %02x %02x"
885 buf[i+10], buf[i+11],
886 buf[i+12], buf [i+13],
887 buf[i+14], buf[i+15]);
896 int rndis_register(void (*resp_avail)(void *v), void *v)
903 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
904 if (!rndis_per_dev_params [i].used) {
905 rndis_per_dev_params [i].used = 1;
906 rndis_per_dev_params [i].resp_avail = resp_avail;
907 rndis_per_dev_params [i].v = v;
908 pr_debug("%s: configNr = %d\n", __func__, i);
912 pr_debug("failed\n");
917 void rndis_deregister (int configNr)
919 pr_debug("%s: \n", __func__);
921 if (configNr >= RNDIS_MAX_CONFIGS) return;
922 rndis_per_dev_params [configNr].used = 0;
927 int rndis_set_param_dev(u8 configNr, struct net_device *dev, u16 *cdc_filter)
929 pr_debug("%s:\n", __func__);
932 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
934 rndis_per_dev_params [configNr].dev = dev;
935 rndis_per_dev_params [configNr].filter = cdc_filter;
940 int rndis_set_param_vendor (u8 configNr, u32 vendorID, const char *vendorDescr)
942 pr_debug("%s:\n", __func__);
943 if (!vendorDescr) return -1;
944 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
946 rndis_per_dev_params [configNr].vendorID = vendorID;
947 rndis_per_dev_params [configNr].vendorDescr = vendorDescr;
952 int rndis_set_param_medium (u8 configNr, u32 medium, u32 speed)
954 pr_debug("%s: %u %u\n", __func__, medium, speed);
955 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
957 rndis_per_dev_params [configNr].medium = medium;
958 rndis_per_dev_params [configNr].speed = speed;
963 void rndis_add_hdr (struct sk_buff *skb)
965 struct rndis_packet_msg_type *header;
969 header = (void *) skb_push (skb, sizeof *header);
970 memset (header, 0, sizeof *header);
971 header->MessageType = cpu_to_le32(REMOTE_NDIS_PACKET_MSG);
972 header->MessageLength = cpu_to_le32(skb->len);
973 header->DataOffset = cpu_to_le32 (36);
974 header->DataLength = cpu_to_le32(skb->len - sizeof *header);
977 void rndis_free_response (int configNr, u8 *buf)
980 struct list_head *act, *tmp;
982 list_for_each_safe (act, tmp,
983 &(rndis_per_dev_params [configNr].resp_queue))
985 r = list_entry (act, rndis_resp_t, list);
986 if (r && r->buf == buf) {
993 u8 *rndis_get_next_response (int configNr, u32 *length)
996 struct list_head *act, *tmp;
998 if (!length) return NULL;
1000 list_for_each_safe (act, tmp,
1001 &(rndis_per_dev_params [configNr].resp_queue))
1003 r = list_entry (act, rndis_resp_t, list);
1006 *length = r->length;
1014 static rndis_resp_t *rndis_add_response (int configNr, u32 length)
1018 /* NOTE: this gets copied into ether.c USB_BUFSIZ bytes ... */
1019 r = kmalloc (sizeof (rndis_resp_t) + length, GFP_ATOMIC);
1020 if (!r) return NULL;
1022 r->buf = (u8 *) (r + 1);
1026 list_add_tail (&r->list,
1027 &(rndis_per_dev_params [configNr].resp_queue));
1031 int rndis_rm_hdr(struct gether *port,
1032 struct sk_buff *skb,
1033 struct sk_buff_head *list)
1035 /* tmp points to a struct rndis_packet_msg_type */
1036 __le32 *tmp = (void *) skb->data;
1038 /* MessageType, MessageLength */
1039 if (cpu_to_le32(REMOTE_NDIS_PACKET_MSG)
1040 != get_unaligned(tmp++)) {
1041 dev_kfree_skb_any(skb);
1046 /* DataOffset, DataLength */
1047 if (!skb_pull(skb, get_unaligned_le32(tmp++) + 8)) {
1048 dev_kfree_skb_any(skb);
1051 skb_trim(skb, get_unaligned_le32(tmp++));
1053 skb_queue_tail(list, skb);
1057 #ifdef CONFIG_USB_GADGET_DEBUG_FILES
1059 static int rndis_proc_show(struct seq_file *m, void *v)
1061 rndis_params *param = m->private;
1070 "vendor ID : 0x%08X\n"
1072 param->confignr, (param->used) ? "y" : "n",
1074 switch (param->state) {
1075 case RNDIS_UNINITIALIZED:
1076 s = "RNDIS_UNINITIALIZED"; break;
1077 case RNDIS_INITIALIZED:
1078 s = "RNDIS_INITIALIZED"; break;
1079 case RNDIS_DATA_INITIALIZED:
1080 s = "RNDIS_DATA_INITIALIZED"; break;
1083 (param->media_state) ? 0 : param->speed*100,
1084 (param->media_state) ? "disconnected" : "connected",
1085 param->vendorID, param->vendorDescr);
1089 static ssize_t rndis_proc_write(struct file *file, const char __user *buffer,
1090 size_t count, loff_t *ppos)
1092 rndis_params *p = PDE(file->f_path.dentry->d_inode)->data;
1094 int i, fl_speed = 0;
1096 for (i = 0; i < count; i++) {
1098 if (get_user(c, buffer))
1112 speed = speed*10 + c - '0';
1116 rndis_signal_connect (p->confignr);
1120 rndis_signal_disconnect(p->confignr);
1123 if (fl_speed) p->speed = speed;
1124 else pr_debug("%c is not valid\n", c);
1134 static int rndis_proc_open(struct inode *inode, struct file *file)
1136 return single_open(file, rndis_proc_show, PDE(inode)->data);
1139 static const struct file_operations rndis_proc_fops = {
1140 .owner = THIS_MODULE,
1141 .open = rndis_proc_open,
1143 .llseek = seq_lseek,
1144 .release = single_release,
1145 .write = rndis_proc_write,
1148 #define NAME_TEMPLATE "driver/rndis-%03d"
1150 static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS];
1152 #endif /* CONFIG_USB_GADGET_DEBUG_FILES */
1155 int rndis_init(void)
1159 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1160 #ifdef CONFIG_USB_GADGET_DEBUG_FILES
1163 sprintf (name, NAME_TEMPLATE, i);
1164 if (!(rndis_connect_state [i]
1165 = proc_create_data(name, 0660, NULL,
1167 (void *)(rndis_per_dev_params + i))))
1169 pr_debug("%s :remove entries", __func__);
1171 sprintf (name, NAME_TEMPLATE, --i);
1172 remove_proc_entry (name, NULL);
1178 rndis_per_dev_params [i].confignr = i;
1179 rndis_per_dev_params [i].used = 0;
1180 rndis_per_dev_params [i].state = RNDIS_UNINITIALIZED;
1181 rndis_per_dev_params [i].media_state
1182 = NDIS_MEDIA_STATE_DISCONNECTED;
1183 INIT_LIST_HEAD (&(rndis_per_dev_params [i].resp_queue));
1189 void rndis_exit (void)
1191 #ifdef CONFIG_USB_GADGET_DEBUG_FILES
1195 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1196 sprintf (name, NAME_TEMPLATE, i);
1197 remove_proc_entry (name, NULL);