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 length = strlen (rndis_per_dev_params [configNr].vendorDescr);
298 rndis_per_dev_params [configNr].vendorDescr, length);
302 case OID_GEN_VENDOR_DRIVER_VERSION:
303 pr_debug("%s: OID_GEN_VENDOR_DRIVER_VERSION\n", __func__);
305 *outbuf = rndis_driver_version;
310 case OID_GEN_CURRENT_PACKET_FILTER:
311 pr_debug("%s: OID_GEN_CURRENT_PACKET_FILTER\n", __func__);
312 *outbuf = cpu_to_le32 (*rndis_per_dev_params[configNr].filter);
317 case OID_GEN_MAXIMUM_TOTAL_SIZE:
318 pr_debug("%s: OID_GEN_MAXIMUM_TOTAL_SIZE\n", __func__);
319 *outbuf = cpu_to_le32(RNDIS_MAX_TOTAL_SIZE);
324 case OID_GEN_MEDIA_CONNECT_STATUS:
326 pr_debug("%s: OID_GEN_MEDIA_CONNECT_STATUS\n", __func__);
327 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
332 case OID_GEN_PHYSICAL_MEDIUM:
333 pr_debug("%s: OID_GEN_PHYSICAL_MEDIUM\n", __func__);
334 *outbuf = cpu_to_le32 (0);
338 /* The RNDIS specification is incomplete/wrong. Some versions
339 * of MS-Windows expect OIDs that aren't specified there. Other
340 * versions emit undefined RNDIS messages. DOCUMENT ALL THESE!
342 case OID_GEN_MAC_OPTIONS: /* from WinME */
343 pr_debug("%s: OID_GEN_MAC_OPTIONS\n", __func__);
344 *outbuf = cpu_to_le32(
345 NDIS_MAC_OPTION_RECEIVE_SERIALIZED
346 | NDIS_MAC_OPTION_FULL_DUPLEX);
350 /* statistics OIDs (table 4-2) */
353 case OID_GEN_XMIT_OK:
355 pr_debug("%s: OID_GEN_XMIT_OK\n", __func__);
357 *outbuf = cpu_to_le32(stats->tx_packets
358 - stats->tx_errors - stats->tx_dropped);
366 pr_debug("%s: OID_GEN_RCV_OK\n", __func__);
368 *outbuf = cpu_to_le32(stats->rx_packets
369 - stats->rx_errors - stats->rx_dropped);
375 case OID_GEN_XMIT_ERROR:
377 pr_debug("%s: OID_GEN_XMIT_ERROR\n", __func__);
379 *outbuf = cpu_to_le32(stats->tx_errors);
385 case OID_GEN_RCV_ERROR:
387 pr_debug("%s: OID_GEN_RCV_ERROR\n", __func__);
389 *outbuf = cpu_to_le32(stats->rx_errors);
395 case OID_GEN_RCV_NO_BUFFER:
396 pr_debug("%s: OID_GEN_RCV_NO_BUFFER\n", __func__);
398 *outbuf = cpu_to_le32(stats->rx_dropped);
403 /* ieee802.3 OIDs (table 4-3) */
406 case OID_802_3_PERMANENT_ADDRESS:
407 pr_debug("%s: OID_802_3_PERMANENT_ADDRESS\n", __func__);
408 if (rndis_per_dev_params [configNr].dev) {
411 rndis_per_dev_params [configNr].host_mac,
418 case OID_802_3_CURRENT_ADDRESS:
419 pr_debug("%s: OID_802_3_CURRENT_ADDRESS\n", __func__);
420 if (rndis_per_dev_params [configNr].dev) {
423 rndis_per_dev_params [configNr].host_mac,
430 case OID_802_3_MULTICAST_LIST:
431 pr_debug("%s: OID_802_3_MULTICAST_LIST\n", __func__);
432 /* Multicast base address only */
433 *outbuf = cpu_to_le32 (0xE0000000);
438 case OID_802_3_MAXIMUM_LIST_SIZE:
439 pr_debug("%s: OID_802_3_MAXIMUM_LIST_SIZE\n", __func__);
440 /* Multicast base address only */
441 *outbuf = cpu_to_le32 (1);
445 case OID_802_3_MAC_OPTIONS:
446 pr_debug("%s: OID_802_3_MAC_OPTIONS\n", __func__);
447 *outbuf = cpu_to_le32(0);
451 /* ieee802.3 statistics OIDs (table 4-4) */
454 case OID_802_3_RCV_ERROR_ALIGNMENT:
455 pr_debug("%s: OID_802_3_RCV_ERROR_ALIGNMENT\n", __func__);
457 *outbuf = cpu_to_le32(stats->rx_frame_errors);
463 case OID_802_3_XMIT_ONE_COLLISION:
464 pr_debug("%s: OID_802_3_XMIT_ONE_COLLISION\n", __func__);
465 *outbuf = cpu_to_le32 (0);
470 case OID_802_3_XMIT_MORE_COLLISIONS:
471 pr_debug("%s: OID_802_3_XMIT_MORE_COLLISIONS\n", __func__);
472 *outbuf = cpu_to_le32 (0);
477 pr_warning("%s: query unknown OID 0x%08X\n",
483 resp->InformationBufferLength = cpu_to_le32 (length);
484 r->length = length + sizeof *resp;
485 resp->MessageLength = cpu_to_le32 (r->length);
489 static int gen_ndis_set_resp (u8 configNr, u32 OID, u8 *buf, u32 buf_len,
492 rndis_set_cmplt_type *resp;
493 int i, retval = -ENOTSUPP;
494 struct rndis_params *params;
498 resp = (rndis_set_cmplt_type *) r->buf;
502 if (buf_len && rndis_debug > 1) {
503 pr_debug("set OID %08x value, len %d:\n", OID, buf_len);
504 for (i = 0; i < buf_len; i += 16) {
505 pr_debug("%03d: %08x %08x %08x %08x\n", i,
506 get_unaligned_le32(&buf[i]),
507 get_unaligned_le32(&buf[i + 4]),
508 get_unaligned_le32(&buf[i + 8]),
509 get_unaligned_le32(&buf[i + 12]));
513 params = &rndis_per_dev_params [configNr];
515 case OID_GEN_CURRENT_PACKET_FILTER:
517 /* these NDIS_PACKET_TYPE_* bitflags are shared with
518 * cdc_filter; it's not RNDIS-specific
519 * NDIS_PACKET_TYPE_x == USB_CDC_PACKET_TYPE_x for x in:
520 * PROMISCUOUS, DIRECTED,
521 * MULTICAST, ALL_MULTICAST, BROADCAST
523 *params->filter = (u16)get_unaligned_le32(buf);
524 pr_debug("%s: OID_GEN_CURRENT_PACKET_FILTER %08x\n",
525 __func__, *params->filter);
527 /* this call has a significant side effect: it's
528 * what makes the packet flow start and stop, like
529 * activating the CDC Ethernet altsetting.
532 if (*params->filter) {
533 params->state = RNDIS_DATA_INITIALIZED;
534 netif_carrier_on(params->dev);
535 if (netif_running(params->dev))
536 netif_wake_queue (params->dev);
538 params->state = RNDIS_INITIALIZED;
539 netif_carrier_off (params->dev);
540 netif_stop_queue (params->dev);
544 case OID_802_3_MULTICAST_LIST:
545 /* I think we can ignore this */
546 pr_debug("%s: OID_802_3_MULTICAST_LIST\n", __func__);
551 pr_warning("%s: set unknown OID 0x%08X, size %d\n",
552 __func__, OID, buf_len);
562 static int rndis_init_response (int configNr, rndis_init_msg_type *buf)
564 rndis_init_cmplt_type *resp;
566 struct rndis_params *params = rndis_per_dev_params + configNr;
571 r = rndis_add_response (configNr, sizeof (rndis_init_cmplt_type));
574 resp = (rndis_init_cmplt_type *) r->buf;
576 resp->MessageType = cpu_to_le32 (
577 REMOTE_NDIS_INITIALIZE_CMPLT);
578 resp->MessageLength = cpu_to_le32 (52);
579 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
580 resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
581 resp->MajorVersion = cpu_to_le32 (RNDIS_MAJOR_VERSION);
582 resp->MinorVersion = cpu_to_le32 (RNDIS_MINOR_VERSION);
583 resp->DeviceFlags = cpu_to_le32 (RNDIS_DF_CONNECTIONLESS);
584 resp->Medium = cpu_to_le32 (RNDIS_MEDIUM_802_3);
585 resp->MaxPacketsPerTransfer = cpu_to_le32 (1);
586 resp->MaxTransferSize = cpu_to_le32 (
588 + sizeof (struct ethhdr)
589 + sizeof (struct rndis_packet_msg_type)
591 resp->PacketAlignmentFactor = cpu_to_le32 (0);
592 resp->AFListOffset = cpu_to_le32 (0);
593 resp->AFListSize = cpu_to_le32 (0);
595 params->resp_avail(params->v);
599 static int rndis_query_response (int configNr, rndis_query_msg_type *buf)
601 rndis_query_cmplt_type *resp;
603 struct rndis_params *params = rndis_per_dev_params + configNr;
605 /* pr_debug("%s: OID = %08X\n", __func__, cpu_to_le32(buf->OID)); */
610 * we need more memory:
611 * gen_ndis_query_resp expects enough space for
612 * rndis_query_cmplt_type followed by data.
613 * oid_supported_list is the largest data reply
615 r = rndis_add_response (configNr,
616 sizeof (oid_supported_list) + sizeof(rndis_query_cmplt_type));
619 resp = (rndis_query_cmplt_type *) r->buf;
621 resp->MessageType = cpu_to_le32 (REMOTE_NDIS_QUERY_CMPLT);
622 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
624 if (gen_ndis_query_resp (configNr, le32_to_cpu (buf->OID),
625 le32_to_cpu(buf->InformationBufferOffset)
627 le32_to_cpu(buf->InformationBufferLength),
629 /* OID not supported */
630 resp->Status = cpu_to_le32 (
631 RNDIS_STATUS_NOT_SUPPORTED);
632 resp->MessageLength = cpu_to_le32 (sizeof *resp);
633 resp->InformationBufferLength = cpu_to_le32 (0);
634 resp->InformationBufferOffset = cpu_to_le32 (0);
636 resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
638 params->resp_avail(params->v);
642 static int rndis_set_response (int configNr, rndis_set_msg_type *buf)
644 u32 BufLength, BufOffset;
645 rndis_set_cmplt_type *resp;
647 struct rndis_params *params = rndis_per_dev_params + configNr;
649 r = rndis_add_response (configNr, sizeof (rndis_set_cmplt_type));
652 resp = (rndis_set_cmplt_type *) r->buf;
654 BufLength = le32_to_cpu (buf->InformationBufferLength);
655 BufOffset = le32_to_cpu (buf->InformationBufferOffset);
658 pr_debug("%s: Length: %d\n", __func__, BufLength);
659 pr_debug("%s: Offset: %d\n", __func__, BufOffset);
660 pr_debug("%s: InfoBuffer: ", __func__);
662 for (i = 0; i < BufLength; i++) {
663 pr_debug("%02x ", *(((u8 *) buf) + i + 8 + BufOffset));
669 resp->MessageType = cpu_to_le32 (REMOTE_NDIS_SET_CMPLT);
670 resp->MessageLength = cpu_to_le32 (16);
671 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
672 if (gen_ndis_set_resp (configNr, le32_to_cpu (buf->OID),
673 ((u8 *) buf) + 8 + BufOffset, BufLength, r))
674 resp->Status = cpu_to_le32 (RNDIS_STATUS_NOT_SUPPORTED);
676 resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
678 params->resp_avail(params->v);
682 static int rndis_reset_response (int configNr, rndis_reset_msg_type *buf)
684 rndis_reset_cmplt_type *resp;
686 struct rndis_params *params = rndis_per_dev_params + configNr;
688 r = rndis_add_response (configNr, sizeof (rndis_reset_cmplt_type));
691 resp = (rndis_reset_cmplt_type *) r->buf;
693 resp->MessageType = cpu_to_le32 (REMOTE_NDIS_RESET_CMPLT);
694 resp->MessageLength = cpu_to_le32 (16);
695 resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
696 /* resent information */
697 resp->AddressingReset = cpu_to_le32 (1);
699 params->resp_avail(params->v);
703 static int rndis_keepalive_response (int configNr,
704 rndis_keepalive_msg_type *buf)
706 rndis_keepalive_cmplt_type *resp;
708 struct rndis_params *params = rndis_per_dev_params + configNr;
710 /* host "should" check only in RNDIS_DATA_INITIALIZED state */
712 r = rndis_add_response (configNr, sizeof (rndis_keepalive_cmplt_type));
715 resp = (rndis_keepalive_cmplt_type *) r->buf;
717 resp->MessageType = cpu_to_le32 (
718 REMOTE_NDIS_KEEPALIVE_CMPLT);
719 resp->MessageLength = cpu_to_le32 (16);
720 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
721 resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
723 params->resp_avail(params->v);
729 * Device to Host Comunication
731 static int rndis_indicate_status_msg (int configNr, u32 status)
733 rndis_indicate_status_msg_type *resp;
735 struct rndis_params *params = rndis_per_dev_params + configNr;
737 if (params->state == RNDIS_UNINITIALIZED)
740 r = rndis_add_response (configNr,
741 sizeof (rndis_indicate_status_msg_type));
744 resp = (rndis_indicate_status_msg_type *) r->buf;
746 resp->MessageType = cpu_to_le32 (
747 REMOTE_NDIS_INDICATE_STATUS_MSG);
748 resp->MessageLength = cpu_to_le32 (20);
749 resp->Status = cpu_to_le32 (status);
750 resp->StatusBufferLength = cpu_to_le32 (0);
751 resp->StatusBufferOffset = cpu_to_le32 (0);
753 params->resp_avail(params->v);
757 int rndis_signal_connect (int configNr)
759 rndis_per_dev_params [configNr].media_state
760 = NDIS_MEDIA_STATE_CONNECTED;
761 return rndis_indicate_status_msg (configNr,
762 RNDIS_STATUS_MEDIA_CONNECT);
765 int rndis_signal_disconnect (int configNr)
767 rndis_per_dev_params [configNr].media_state
768 = NDIS_MEDIA_STATE_DISCONNECTED;
769 return rndis_indicate_status_msg (configNr,
770 RNDIS_STATUS_MEDIA_DISCONNECT);
773 void rndis_uninit (int configNr)
778 if (configNr >= RNDIS_MAX_CONFIGS)
780 rndis_per_dev_params [configNr].state = RNDIS_UNINITIALIZED;
782 /* drain the response queue */
783 while ((buf = rndis_get_next_response(configNr, &length)))
784 rndis_free_response(configNr, buf);
787 void rndis_set_host_mac (int configNr, const u8 *addr)
789 rndis_per_dev_params [configNr].host_mac = addr;
795 int rndis_msg_parser (u8 configNr, u8 *buf)
797 u32 MsgType, MsgLength;
799 struct rndis_params *params;
804 tmp = (__le32 *) buf;
805 MsgType = get_unaligned_le32(tmp++);
806 MsgLength = get_unaligned_le32(tmp++);
808 if (configNr >= RNDIS_MAX_CONFIGS)
810 params = &rndis_per_dev_params [configNr];
812 /* NOTE: RNDIS is *EXTREMELY* chatty ... Windows constantly polls for
813 * rx/tx statistics and link status, in addition to KEEPALIVE traffic
814 * and normal HC level polling to see if there's any IN traffic.
817 /* For USB: responses may take up to 10 seconds */
819 case REMOTE_NDIS_INITIALIZE_MSG:
820 pr_debug("%s: REMOTE_NDIS_INITIALIZE_MSG\n",
822 params->state = RNDIS_INITIALIZED;
823 return rndis_init_response (configNr,
824 (rndis_init_msg_type *) buf);
826 case REMOTE_NDIS_HALT_MSG:
827 pr_debug("%s: REMOTE_NDIS_HALT_MSG\n",
829 params->state = RNDIS_UNINITIALIZED;
831 netif_carrier_off (params->dev);
832 netif_stop_queue (params->dev);
836 case REMOTE_NDIS_QUERY_MSG:
837 return rndis_query_response (configNr,
838 (rndis_query_msg_type *) buf);
840 case REMOTE_NDIS_SET_MSG:
841 return rndis_set_response (configNr,
842 (rndis_set_msg_type *) buf);
844 case REMOTE_NDIS_RESET_MSG:
845 pr_debug("%s: REMOTE_NDIS_RESET_MSG\n",
847 return rndis_reset_response (configNr,
848 (rndis_reset_msg_type *) buf);
850 case REMOTE_NDIS_KEEPALIVE_MSG:
851 /* For USB: host does this every 5 seconds */
853 pr_debug("%s: REMOTE_NDIS_KEEPALIVE_MSG\n",
855 return rndis_keepalive_response (configNr,
856 (rndis_keepalive_msg_type *)
860 /* At least Windows XP emits some undefined RNDIS messages.
861 * In one case those messages seemed to relate to the host
864 pr_warning("%s: unknown RNDIS message 0x%08X len %d\n",
865 __func__ , MsgType, MsgLength);
868 for (i = 0; i < MsgLength; i += 16) {
870 " %02x %02x %02x %02x"
871 " %02x %02x %02x %02x"
872 " %02x %02x %02x %02x"
873 " %02x %02x %02x %02x"
881 buf[i+10], buf[i+11],
882 buf[i+12], buf [i+13],
883 buf[i+14], buf[i+15]);
892 int rndis_register(void (*resp_avail)(void *v), void *v)
899 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
900 if (!rndis_per_dev_params [i].used) {
901 rndis_per_dev_params [i].used = 1;
902 rndis_per_dev_params [i].resp_avail = resp_avail;
903 rndis_per_dev_params [i].v = v;
904 pr_debug("%s: configNr = %d\n", __func__, i);
908 pr_debug("failed\n");
913 void rndis_deregister (int configNr)
915 pr_debug("%s: \n", __func__);
917 if (configNr >= RNDIS_MAX_CONFIGS) return;
918 rndis_per_dev_params [configNr].used = 0;
921 int rndis_set_param_dev(u8 configNr, struct net_device *dev, u16 *cdc_filter)
923 pr_debug("%s:\n", __func__);
926 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
928 rndis_per_dev_params [configNr].dev = dev;
929 rndis_per_dev_params [configNr].filter = cdc_filter;
934 int rndis_set_param_vendor (u8 configNr, u32 vendorID, const char *vendorDescr)
936 pr_debug("%s:\n", __func__);
937 if (!vendorDescr) return -1;
938 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
940 rndis_per_dev_params [configNr].vendorID = vendorID;
941 rndis_per_dev_params [configNr].vendorDescr = vendorDescr;
946 int rndis_set_param_medium (u8 configNr, u32 medium, u32 speed)
948 pr_debug("%s: %u %u\n", __func__, medium, speed);
949 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
951 rndis_per_dev_params [configNr].medium = medium;
952 rndis_per_dev_params [configNr].speed = speed;
957 void rndis_add_hdr (struct sk_buff *skb)
959 struct rndis_packet_msg_type *header;
963 header = (void *) skb_push (skb, sizeof *header);
964 memset (header, 0, sizeof *header);
965 header->MessageType = cpu_to_le32(REMOTE_NDIS_PACKET_MSG);
966 header->MessageLength = cpu_to_le32(skb->len);
967 header->DataOffset = cpu_to_le32 (36);
968 header->DataLength = cpu_to_le32(skb->len - sizeof *header);
971 void rndis_free_response (int configNr, u8 *buf)
974 struct list_head *act, *tmp;
976 list_for_each_safe (act, tmp,
977 &(rndis_per_dev_params [configNr].resp_queue))
979 r = list_entry (act, rndis_resp_t, list);
980 if (r && r->buf == buf) {
987 u8 *rndis_get_next_response (int configNr, u32 *length)
990 struct list_head *act, *tmp;
992 if (!length) return NULL;
994 list_for_each_safe (act, tmp,
995 &(rndis_per_dev_params [configNr].resp_queue))
997 r = list_entry (act, rndis_resp_t, list);
1000 *length = r->length;
1008 static rndis_resp_t *rndis_add_response (int configNr, u32 length)
1012 /* NOTE: this gets copied into ether.c USB_BUFSIZ bytes ... */
1013 r = kmalloc (sizeof (rndis_resp_t) + length, GFP_ATOMIC);
1014 if (!r) return NULL;
1016 r->buf = (u8 *) (r + 1);
1020 list_add_tail (&r->list,
1021 &(rndis_per_dev_params [configNr].resp_queue));
1025 int rndis_rm_hdr(struct gether *port,
1026 struct sk_buff *skb,
1027 struct sk_buff_head *list)
1029 /* tmp points to a struct rndis_packet_msg_type */
1030 __le32 *tmp = (void *) skb->data;
1032 /* MessageType, MessageLength */
1033 if (cpu_to_le32(REMOTE_NDIS_PACKET_MSG)
1034 != get_unaligned(tmp++)) {
1035 dev_kfree_skb_any(skb);
1040 /* DataOffset, DataLength */
1041 if (!skb_pull(skb, get_unaligned_le32(tmp++) + 8)) {
1042 dev_kfree_skb_any(skb);
1045 skb_trim(skb, get_unaligned_le32(tmp++));
1047 skb_queue_tail(list, skb);
1051 #ifdef CONFIG_USB_GADGET_DEBUG_FILES
1053 static int rndis_proc_show(struct seq_file *m, void *v)
1055 rndis_params *param = m->private;
1064 "vendor ID : 0x%08X\n"
1066 param->confignr, (param->used) ? "y" : "n",
1068 switch (param->state) {
1069 case RNDIS_UNINITIALIZED:
1070 s = "RNDIS_UNINITIALIZED"; break;
1071 case RNDIS_INITIALIZED:
1072 s = "RNDIS_INITIALIZED"; break;
1073 case RNDIS_DATA_INITIALIZED:
1074 s = "RNDIS_DATA_INITIALIZED"; break;
1077 (param->media_state) ? 0 : param->speed*100,
1078 (param->media_state) ? "disconnected" : "connected",
1079 param->vendorID, param->vendorDescr);
1083 static ssize_t rndis_proc_write(struct file *file, const char __user *buffer,
1084 size_t count, loff_t *ppos)
1086 rndis_params *p = PDE(file->f_path.dentry->d_inode)->data;
1088 int i, fl_speed = 0;
1090 for (i = 0; i < count; i++) {
1092 if (get_user(c, buffer))
1106 speed = speed*10 + c - '0';
1110 rndis_signal_connect (p->confignr);
1114 rndis_signal_disconnect(p->confignr);
1117 if (fl_speed) p->speed = speed;
1118 else pr_debug("%c is not valid\n", c);
1128 static int rndis_proc_open(struct inode *inode, struct file *file)
1130 return single_open(file, rndis_proc_show, PDE(inode)->data);
1133 static const struct file_operations rndis_proc_fops = {
1134 .owner = THIS_MODULE,
1135 .open = rndis_proc_open,
1137 .llseek = seq_lseek,
1138 .release = single_release,
1139 .write = rndis_proc_write,
1142 #define NAME_TEMPLATE "driver/rndis-%03d"
1144 static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS];
1146 #endif /* CONFIG_USB_GADGET_DEBUG_FILES */
1149 int __init rndis_init (void)
1153 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1154 #ifdef CONFIG_USB_GADGET_DEBUG_FILES
1157 sprintf (name, NAME_TEMPLATE, i);
1158 if (!(rndis_connect_state [i]
1159 = proc_create_data(name, 0660, NULL,
1161 (void *)(rndis_per_dev_params + i))))
1163 pr_debug("%s :remove entries", __func__);
1165 sprintf (name, NAME_TEMPLATE, --i);
1166 remove_proc_entry (name, NULL);
1172 rndis_per_dev_params [i].confignr = i;
1173 rndis_per_dev_params [i].used = 0;
1174 rndis_per_dev_params [i].state = RNDIS_UNINITIALIZED;
1175 rndis_per_dev_params [i].media_state
1176 = NDIS_MEDIA_STATE_DISCONNECTED;
1177 INIT_LIST_HEAD (&(rndis_per_dev_params [i].resp_queue));
1183 void rndis_exit (void)
1185 #ifdef CONFIG_USB_GADGET_DEBUG_FILES
1189 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1190 sprintf (name, NAME_TEMPLATE, i);
1191 remove_proc_entry (name, NULL);