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linux/drivers/usb/gadget/rndis.c
David Brownell 01ee7d7032 USB: usb gadgets avoid le{16,32}_to_cpup() 
It turns out that le16_to_cpup() and le32_to_cpup() aren't always safe
to call with pointers into packed structures, since those are inlined
functions and GCC may lose the "packed" attribute.  So those references
can become unaligned kernel accesses, which are evil on some hardware.

This patch updates uses of those routines in the gadget stack.  The
references into packed structures can just use leXX_to_cpu(*x), which
in most cases is more natural.  Some other uses in RNDIS, mostly in
debug code, were wrong in the first place; those use get_unaligned().

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-06-08 16:24:30 -07:00

1460 lines
37 KiB
C
Raw Blame History

/*
* RNDIS MSG parser
*
* Version: $Id: rndis.c,v 1.19 2004/03/25 21:33:46 robert Exp $
*
* Authors: Benedikt Spranger, Pengutronix
* Robert Schwebel, Pengutronix
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2, as published by the Free Software Foundation.
*
* This software was originally developed in conformance with
* Microsoft's Remote NDIS Specification License Agreement.
*
* 03/12/2004 Kai-Uwe Bloem <linux-development@auerswald.de>
* Fixed message length bug in init_response
*
* 03/25/2004 Kai-Uwe Bloem <linux-development@auerswald.de>
* Fixed rndis_rm_hdr length bug.
*
* Copyright (C) 2004 by David Brownell
* updates to merge with Linux 2.6, better match RNDIS spec
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/proc_fs.h>
#include <linux/netdevice.h>
#include <asm/io.h>
#include <asm/byteorder.h>
#include <asm/system.h>
#include <asm/unaligned.h>
#undef RNDIS_PM
#undef RNDIS_WAKEUP
#undef VERBOSE
#include "rndis.h"
/* The driver for your USB chip needs to support ep0 OUT to work with
* RNDIS, plus all three CDC Ethernet endpoints (interrupt not optional).
*
* Windows hosts need an INF file like Documentation/usb/linux.inf
* and will be happier if you provide the host_addr module parameter.
*/
#if 0
#define DEBUG(str,args...) do { \
if (rndis_debug) \
printk(KERN_DEBUG str , ## args ); \
} while (0)
static int rndis_debug = 0;
module_param (rndis_debug, int, 0);
MODULE_PARM_DESC (rndis_debug, "enable debugging");
#else
#define rndis_debug 0
#define DEBUG(str,args...) do{}while(0)
#endif
#define RNDIS_MAX_CONFIGS 1
static rndis_params rndis_per_dev_params [RNDIS_MAX_CONFIGS];
/* Driver Version */
static const __le32 rndis_driver_version = __constant_cpu_to_le32 (1);
/* Function Prototypes */
static rndis_resp_t *rndis_add_response (int configNr, u32 length);
/* supported OIDs */
static const u32 oid_supported_list [] =
{
/* the general stuff */
OID_GEN_SUPPORTED_LIST,
OID_GEN_HARDWARE_STATUS,
OID_GEN_MEDIA_SUPPORTED,
OID_GEN_MEDIA_IN_USE,
OID_GEN_MAXIMUM_FRAME_SIZE,
OID_GEN_LINK_SPEED,
OID_GEN_TRANSMIT_BLOCK_SIZE,
OID_GEN_RECEIVE_BLOCK_SIZE,
OID_GEN_VENDOR_ID,
OID_GEN_VENDOR_DESCRIPTION,
OID_GEN_VENDOR_DRIVER_VERSION,
OID_GEN_CURRENT_PACKET_FILTER,
OID_GEN_MAXIMUM_TOTAL_SIZE,
OID_GEN_MEDIA_CONNECT_STATUS,
OID_GEN_PHYSICAL_MEDIUM,
#if 0
OID_GEN_RNDIS_CONFIG_PARAMETER,
#endif
/* the statistical stuff */
OID_GEN_XMIT_OK,
OID_GEN_RCV_OK,
OID_GEN_XMIT_ERROR,
OID_GEN_RCV_ERROR,
OID_GEN_RCV_NO_BUFFER,
#ifdef RNDIS_OPTIONAL_STATS
OID_GEN_DIRECTED_BYTES_XMIT,
OID_GEN_DIRECTED_FRAMES_XMIT,
OID_GEN_MULTICAST_BYTES_XMIT,
OID_GEN_MULTICAST_FRAMES_XMIT,
OID_GEN_BROADCAST_BYTES_XMIT,
OID_GEN_BROADCAST_FRAMES_XMIT,
OID_GEN_DIRECTED_BYTES_RCV,
OID_GEN_DIRECTED_FRAMES_RCV,
OID_GEN_MULTICAST_BYTES_RCV,
OID_GEN_MULTICAST_FRAMES_RCV,
OID_GEN_BROADCAST_BYTES_RCV,
OID_GEN_BROADCAST_FRAMES_RCV,
OID_GEN_RCV_CRC_ERROR,
OID_GEN_TRANSMIT_QUEUE_LENGTH,
#endif /* RNDIS_OPTIONAL_STATS */
/* mandatory 802.3 */
/* the general stuff */
OID_802_3_PERMANENT_ADDRESS,
OID_802_3_CURRENT_ADDRESS,
OID_802_3_MULTICAST_LIST,
OID_802_3_MAC_OPTIONS,
OID_802_3_MAXIMUM_LIST_SIZE,
/* the statistical stuff */
OID_802_3_RCV_ERROR_ALIGNMENT,
OID_802_3_XMIT_ONE_COLLISION,
OID_802_3_XMIT_MORE_COLLISIONS,
#ifdef RNDIS_OPTIONAL_STATS
OID_802_3_XMIT_DEFERRED,
OID_802_3_XMIT_MAX_COLLISIONS,
OID_802_3_RCV_OVERRUN,
OID_802_3_XMIT_UNDERRUN,
OID_802_3_XMIT_HEARTBEAT_FAILURE,
OID_802_3_XMIT_TIMES_CRS_LOST,
OID_802_3_XMIT_LATE_COLLISIONS,
#endif /* RNDIS_OPTIONAL_STATS */
#ifdef RNDIS_PM
/* PM and wakeup are mandatory for USB: */
/* power management */
OID_PNP_CAPABILITIES,
OID_PNP_QUERY_POWER,
OID_PNP_SET_POWER,
#ifdef RNDIS_WAKEUP
/* wake up host */
OID_PNP_ENABLE_WAKE_UP,
OID_PNP_ADD_WAKE_UP_PATTERN,
OID_PNP_REMOVE_WAKE_UP_PATTERN,
#endif /* RNDIS_WAKEUP */
#endif /* RNDIS_PM */
};
/* NDIS Functions */
static int
gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
rndis_resp_t *r)
{
int retval = -ENOTSUPP;
u32 length = 4; /* usually */
__le32 *outbuf;
int i, count;
rndis_query_cmplt_type *resp;
if (!r) return -ENOMEM;
resp = (rndis_query_cmplt_type *) r->buf;
if (!resp) return -ENOMEM;
if (buf_len && rndis_debug > 1) {
DEBUG("query OID %08x value, len %d:\n", OID, buf_len);
for (i = 0; i < buf_len; i += 16) {
DEBUG ("%03d: %08x %08x %08x %08x\n", i,
le32_to_cpu(get_unaligned((__le32 *)
&buf[i])),
le32_to_cpu(get_unaligned((__le32 *)
&buf[i + 4])),
le32_to_cpu(get_unaligned((__le32 *)
&buf[i + 8])),
le32_to_cpu(get_unaligned((__le32 *)
&buf[i + 12])));
}
}
/* response goes here, right after the header */
outbuf = (__le32 *) &resp[1];
resp->InformationBufferOffset = __constant_cpu_to_le32 (16);
switch (OID) {
/* general oids (table 4-1) */
/* mandatory */
case OID_GEN_SUPPORTED_LIST:
DEBUG ("%s: OID_GEN_SUPPORTED_LIST\n", __FUNCTION__);
length = sizeof (oid_supported_list);
count = length / sizeof (u32);
for (i = 0; i < count; i++)
outbuf[i] = cpu_to_le32 (oid_supported_list[i]);
retval = 0;
break;
/* mandatory */
case OID_GEN_HARDWARE_STATUS:
DEBUG("%s: OID_GEN_HARDWARE_STATUS\n", __FUNCTION__);
/* Bogus question!
* Hardware must be ready to receive high level protocols.
* BTW:
* reddite ergo quae sunt Caesaris Caesari
* et quae sunt Dei Deo!
*/
*outbuf = __constant_cpu_to_le32 (0);
retval = 0;
break;
/* mandatory */
case OID_GEN_MEDIA_SUPPORTED:
DEBUG("%s: OID_GEN_MEDIA_SUPPORTED\n", __FUNCTION__);
*outbuf = cpu_to_le32 (rndis_per_dev_params [configNr].medium);
retval = 0;
break;
/* mandatory */
case OID_GEN_MEDIA_IN_USE:
DEBUG("%s: OID_GEN_MEDIA_IN_USE\n", __FUNCTION__);
/* one medium, one transport... (maybe you do it better) */
*outbuf = cpu_to_le32 (rndis_per_dev_params [configNr].medium);
retval = 0;
break;
/* mandatory */
case OID_GEN_MAXIMUM_FRAME_SIZE:
DEBUG("%s: OID_GEN_MAXIMUM_FRAME_SIZE\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].dev) {
*outbuf = cpu_to_le32 (
rndis_per_dev_params [configNr].dev->mtu);
retval = 0;
}
break;
/* mandatory */
case OID_GEN_LINK_SPEED:
if (rndis_debug > 1)
DEBUG("%s: OID_GEN_LINK_SPEED\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].media_state
== NDIS_MEDIA_STATE_DISCONNECTED)
*outbuf = __constant_cpu_to_le32 (0);
else
*outbuf = cpu_to_le32 (
rndis_per_dev_params [configNr].speed);
retval = 0;
break;
/* mandatory */
case OID_GEN_TRANSMIT_BLOCK_SIZE:
DEBUG("%s: OID_GEN_TRANSMIT_BLOCK_SIZE\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].dev) {
*outbuf = cpu_to_le32 (
rndis_per_dev_params [configNr].dev->mtu);
retval = 0;
}
break;
/* mandatory */
case OID_GEN_RECEIVE_BLOCK_SIZE:
DEBUG("%s: OID_GEN_RECEIVE_BLOCK_SIZE\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].dev) {
*outbuf = cpu_to_le32 (
rndis_per_dev_params [configNr].dev->mtu);
retval = 0;
}
break;
/* mandatory */
case OID_GEN_VENDOR_ID:
DEBUG("%s: OID_GEN_VENDOR_ID\n", __FUNCTION__);
*outbuf = cpu_to_le32 (
rndis_per_dev_params [configNr].vendorID);
retval = 0;
break;
/* mandatory */
case OID_GEN_VENDOR_DESCRIPTION:
DEBUG("%s: OID_GEN_VENDOR_DESCRIPTION\n", __FUNCTION__);
length = strlen (rndis_per_dev_params [configNr].vendorDescr);
memcpy (outbuf,
rndis_per_dev_params [configNr].vendorDescr, length);
retval = 0;
break;
case OID_GEN_VENDOR_DRIVER_VERSION:
DEBUG("%s: OID_GEN_VENDOR_DRIVER_VERSION\n", __FUNCTION__);
/* Created as LE */
*outbuf = rndis_driver_version;
retval = 0;
break;
/* mandatory */
case OID_GEN_CURRENT_PACKET_FILTER:
DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER\n", __FUNCTION__);
*outbuf = cpu_to_le32 (*rndis_per_dev_params[configNr].filter);
retval = 0;
break;
/* mandatory */
case OID_GEN_MAXIMUM_TOTAL_SIZE:
DEBUG("%s: OID_GEN_MAXIMUM_TOTAL_SIZE\n", __FUNCTION__);
*outbuf = __constant_cpu_to_le32(RNDIS_MAX_TOTAL_SIZE);
retval = 0;
break;
/* mandatory */
case OID_GEN_MEDIA_CONNECT_STATUS:
if (rndis_debug > 1)
DEBUG("%s: OID_GEN_MEDIA_CONNECT_STATUS\n", __FUNCTION__);
*outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
.media_state);
retval = 0;
break;
case OID_GEN_PHYSICAL_MEDIUM:
DEBUG("%s: OID_GEN_PHYSICAL_MEDIUM\n", __FUNCTION__);
*outbuf = __constant_cpu_to_le32 (0);
retval = 0;
break;
/* The RNDIS specification is incomplete/wrong. Some versions
* of MS-Windows expect OIDs that aren't specified there. Other
* versions emit undefined RNDIS messages. DOCUMENT ALL THESE!
*/
case OID_GEN_MAC_OPTIONS: /* from WinME */
DEBUG("%s: OID_GEN_MAC_OPTIONS\n", __FUNCTION__);
*outbuf = __constant_cpu_to_le32(
NDIS_MAC_OPTION_RECEIVE_SERIALIZED
| NDIS_MAC_OPTION_FULL_DUPLEX);
retval = 0;
break;
/* statistics OIDs (table 4-2) */
/* mandatory */
case OID_GEN_XMIT_OK:
if (rndis_debug > 1)
DEBUG("%s: OID_GEN_XMIT_OK\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (
rndis_per_dev_params [configNr].stats->tx_packets -
rndis_per_dev_params [configNr].stats->tx_errors -
rndis_per_dev_params [configNr].stats->tx_dropped);
retval = 0;
}
break;
/* mandatory */
case OID_GEN_RCV_OK:
if (rndis_debug > 1)
DEBUG("%s: OID_GEN_RCV_OK\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (
rndis_per_dev_params [configNr].stats->rx_packets -
rndis_per_dev_params [configNr].stats->rx_errors -
rndis_per_dev_params [configNr].stats->rx_dropped);
retval = 0;
}
break;
/* mandatory */
case OID_GEN_XMIT_ERROR:
if (rndis_debug > 1)
DEBUG("%s: OID_GEN_XMIT_ERROR\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
.stats->tx_errors);
retval = 0;
}
break;
/* mandatory */
case OID_GEN_RCV_ERROR:
if (rndis_debug > 1)
DEBUG("%s: OID_GEN_RCV_ERROR\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
.stats->rx_errors);
retval = 0;
}
break;
/* mandatory */
case OID_GEN_RCV_NO_BUFFER:
DEBUG("%s: OID_GEN_RCV_NO_BUFFER\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
.stats->rx_dropped);
retval = 0;
}
break;
#ifdef RNDIS_OPTIONAL_STATS
case OID_GEN_DIRECTED_BYTES_XMIT:
DEBUG("%s: OID_GEN_DIRECTED_BYTES_XMIT\n", __FUNCTION__);
/*
* Aunt Tilly's size of shoes
* minus antarctica count of penguins
* divided by weight of Alpha Centauri
*/
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (
(rndis_per_dev_params [configNr]
.stats->tx_packets -
rndis_per_dev_params [configNr]
.stats->tx_errors -
rndis_per_dev_params [configNr]
.stats->tx_dropped)
* 123);
retval = 0;
}
break;
case OID_GEN_DIRECTED_FRAMES_XMIT:
DEBUG("%s: OID_GEN_DIRECTED_FRAMES_XMIT\n", __FUNCTION__);
/* dito */
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (
(rndis_per_dev_params [configNr]
.stats->tx_packets -
rndis_per_dev_params [configNr]
.stats->tx_errors -
rndis_per_dev_params [configNr]
.stats->tx_dropped)
/ 123);
retval = 0;
}
break;
case OID_GEN_MULTICAST_BYTES_XMIT:
DEBUG("%s: OID_GEN_MULTICAST_BYTES_XMIT\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
.stats->multicast*1234);
retval = 0;
}
break;
case OID_GEN_MULTICAST_FRAMES_XMIT:
DEBUG("%s: OID_GEN_MULTICAST_FRAMES_XMIT\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
.stats->multicast);
retval = 0;
}
break;
case OID_GEN_BROADCAST_BYTES_XMIT:
DEBUG("%s: OID_GEN_BROADCAST_BYTES_XMIT\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
.stats->tx_packets/42*255);
retval = 0;
}
break;
case OID_GEN_BROADCAST_FRAMES_XMIT:
DEBUG("%s: OID_GEN_BROADCAST_FRAMES_XMIT\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
.stats->tx_packets/42);
retval = 0;
}
break;
case OID_GEN_DIRECTED_BYTES_RCV:
DEBUG("%s: OID_GEN_DIRECTED_BYTES_RCV\n", __FUNCTION__);
*outbuf = __constant_cpu_to_le32 (0);
retval = 0;
break;
case OID_GEN_DIRECTED_FRAMES_RCV:
DEBUG("%s: OID_GEN_DIRECTED_FRAMES_RCV\n", __FUNCTION__);
*outbuf = __constant_cpu_to_le32 (0);
retval = 0;
break;
case OID_GEN_MULTICAST_BYTES_RCV:
DEBUG("%s: OID_GEN_MULTICAST_BYTES_RCV\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
.stats->multicast * 1111);
retval = 0;
}
break;
case OID_GEN_MULTICAST_FRAMES_RCV:
DEBUG("%s: OID_GEN_MULTICAST_FRAMES_RCV\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
.stats->multicast);
retval = 0;
}
break;
case OID_GEN_BROADCAST_BYTES_RCV:
DEBUG("%s: OID_GEN_BROADCAST_BYTES_RCV\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
.stats->rx_packets/42*255);
retval = 0;
}
break;
case OID_GEN_BROADCAST_FRAMES_RCV:
DEBUG("%s: OID_GEN_BROADCAST_FRAMES_RCV\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
.stats->rx_packets/42);
retval = 0;
}
break;
case OID_GEN_RCV_CRC_ERROR:
DEBUG("%s: OID_GEN_RCV_CRC_ERROR\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
.stats->rx_crc_errors);
retval = 0;
}
break;
case OID_GEN_TRANSMIT_QUEUE_LENGTH:
DEBUG("%s: OID_GEN_TRANSMIT_QUEUE_LENGTH\n", __FUNCTION__);
*outbuf = __constant_cpu_to_le32 (0);
retval = 0;
break;
#endif /* RNDIS_OPTIONAL_STATS */
/* ieee802.3 OIDs (table 4-3) */
/* mandatory */
case OID_802_3_PERMANENT_ADDRESS:
DEBUG("%s: OID_802_3_PERMANENT_ADDRESS\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].dev) {
length = ETH_ALEN;
memcpy (outbuf,
rndis_per_dev_params [configNr].host_mac,
length);
retval = 0;
}
break;
/* mandatory */
case OID_802_3_CURRENT_ADDRESS:
DEBUG("%s: OID_802_3_CURRENT_ADDRESS\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].dev) {
length = ETH_ALEN;
memcpy (outbuf,
rndis_per_dev_params [configNr].host_mac,
length);
retval = 0;
}
break;
/* mandatory */
case OID_802_3_MULTICAST_LIST:
DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__);
/* Multicast base address only */
*outbuf = __constant_cpu_to_le32 (0xE0000000);
retval = 0;
break;
/* mandatory */
case OID_802_3_MAXIMUM_LIST_SIZE:
DEBUG("%s: OID_802_3_MAXIMUM_LIST_SIZE\n", __FUNCTION__);
/* Multicast base address only */
*outbuf = __constant_cpu_to_le32 (1);
retval = 0;
break;
case OID_802_3_MAC_OPTIONS:
DEBUG("%s: OID_802_3_MAC_OPTIONS\n", __FUNCTION__);
break;
/* ieee802.3 statistics OIDs (table 4-4) */
/* mandatory */
case OID_802_3_RCV_ERROR_ALIGNMENT:
DEBUG("%s: OID_802_3_RCV_ERROR_ALIGNMENT\n", __FUNCTION__);
if (rndis_per_dev_params [configNr].stats) {
*outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
.stats->rx_frame_errors);
retval = 0;
}
break;
/* mandatory */
case OID_802_3_XMIT_ONE_COLLISION:
DEBUG("%s: OID_802_3_XMIT_ONE_COLLISION\n", __FUNCTION__);
*outbuf = __constant_cpu_to_le32 (0);
retval = 0;
break;
/* mandatory */
case OID_802_3_XMIT_MORE_COLLISIONS:
DEBUG("%s: OID_802_3_XMIT_MORE_COLLISIONS\n", __FUNCTION__);
*outbuf = __constant_cpu_to_le32 (0);
retval = 0;
break;
#ifdef RNDIS_OPTIONAL_STATS
case OID_802_3_XMIT_DEFERRED:
DEBUG("%s: OID_802_3_XMIT_DEFERRED\n", __FUNCTION__);
/* TODO */
break;
case OID_802_3_XMIT_MAX_COLLISIONS:
DEBUG("%s: OID_802_3_XMIT_MAX_COLLISIONS\n", __FUNCTION__);
/* TODO */
break;
case OID_802_3_RCV_OVERRUN:
DEBUG("%s: OID_802_3_RCV_OVERRUN\n", __FUNCTION__);
/* TODO */
break;
case OID_802_3_XMIT_UNDERRUN:
DEBUG("%s: OID_802_3_XMIT_UNDERRUN\n", __FUNCTION__);
/* TODO */
break;
case OID_802_3_XMIT_HEARTBEAT_FAILURE:
DEBUG("%s: OID_802_3_XMIT_HEARTBEAT_FAILURE\n", __FUNCTION__);
/* TODO */
break;
case OID_802_3_XMIT_TIMES_CRS_LOST:
DEBUG("%s: OID_802_3_XMIT_TIMES_CRS_LOST\n", __FUNCTION__);
/* TODO */
break;
case OID_802_3_XMIT_LATE_COLLISIONS:
DEBUG("%s: OID_802_3_XMIT_LATE_COLLISIONS\n", __FUNCTION__);
/* TODO */
break;
#endif /* RNDIS_OPTIONAL_STATS */
#ifdef RNDIS_PM
/* power management OIDs (table 4-5) */
case OID_PNP_CAPABILITIES:
DEBUG("%s: OID_PNP_CAPABILITIES\n", __FUNCTION__);
/* for now, no wakeup capabilities */
length = sizeof (struct NDIS_PNP_CAPABILITIES);
memset(outbuf, 0, length);
retval = 0;
break;
case OID_PNP_QUERY_POWER:
DEBUG("%s: OID_PNP_QUERY_POWER D%d\n", __FUNCTION__,
le32_to_cpu(get_unaligned((__le32 *)buf)) - 1);
/* only suspend is a real power state, and
* it can't be entered by OID_PNP_SET_POWER...
*/
length = 0;
retval = 0;
break;
#endif
default:
printk (KERN_WARNING "%s: query unknown OID 0x%08X\n",
__FUNCTION__, OID);
}
if (retval < 0)
length = 0;
resp->InformationBufferLength = cpu_to_le32 (length);
r->length = length + sizeof *resp;
resp->MessageLength = cpu_to_le32 (r->length);
return retval;
}
static int gen_ndis_set_resp (u8 configNr, u32 OID, u8 *buf, u32 buf_len,
rndis_resp_t *r)
{
rndis_set_cmplt_type *resp;
int i, retval = -ENOTSUPP;
struct rndis_params *params;
if (!r)
return -ENOMEM;
resp = (rndis_set_cmplt_type *) r->buf;
if (!resp)
return -ENOMEM;
if (buf_len && rndis_debug > 1) {
DEBUG("set OID %08x value, len %d:\n", OID, buf_len);
for (i = 0; i < buf_len; i += 16) {
DEBUG ("%03d: %08x %08x %08x %08x\n", i,
le32_to_cpu(get_unaligned((__le32 *)
&buf[i])),
le32_to_cpu(get_unaligned((__le32 *)
&buf[i + 4])),
le32_to_cpu(get_unaligned((__le32 *)
&buf[i + 8])),
le32_to_cpu(get_unaligned((__le32 *)
&buf[i + 12])));
}
}
params = &rndis_per_dev_params [configNr];
switch (OID) {
case OID_GEN_CURRENT_PACKET_FILTER:
/* these NDIS_PACKET_TYPE_* bitflags are shared with
* cdc_filter; it's not RNDIS-specific
* NDIS_PACKET_TYPE_x == USB_CDC_PACKET_TYPE_x for x in:
* PROMISCUOUS, DIRECTED,
* MULTICAST, ALL_MULTICAST, BROADCAST
*/
*params->filter = (u16) le32_to_cpu(get_unaligned(
(__le32 *)buf));
DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER %08x\n",
__FUNCTION__, *params->filter);
/* this call has a significant side effect: it's
* what makes the packet flow start and stop, like
* activating the CDC Ethernet altsetting.
*/
#ifdef RNDIS_PM
update_linkstate:
#endif
retval = 0;
if (*params->filter) {
params->state = RNDIS_DATA_INITIALIZED;
netif_carrier_on(params->dev);
if (netif_running(params->dev))
netif_wake_queue (params->dev);
} else {
params->state = RNDIS_INITIALIZED;
netif_carrier_off (params->dev);
netif_stop_queue (params->dev);
}
break;
case OID_802_3_MULTICAST_LIST:
/* I think we can ignore this */
DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__);
retval = 0;
break;
#if 0
case OID_GEN_RNDIS_CONFIG_PARAMETER:
{
struct rndis_config_parameter *param;
param = (struct rndis_config_parameter *) buf;
DEBUG("%s: OID_GEN_RNDIS_CONFIG_PARAMETER '%*s'\n",
__FUNCTION__,
min(cpu_to_le32(param->ParameterNameLength),80),
buf + param->ParameterNameOffset);
retval = 0;
}
break;
#endif
#ifdef RNDIS_PM
case OID_PNP_SET_POWER:
/* The only real power state is USB suspend, and RNDIS requests
* can't enter it; this one isn't really about power. After
* resuming, Windows forces a reset, and then SET_POWER D0.
* FIXME ... then things go batty; Windows wedges itself.
*/
i = le32_to_cpu(get_unaligned((__le32 *)buf));
DEBUG("%s: OID_PNP_SET_POWER D%d\n", __FUNCTION__, i - 1);
switch (i) {
case NdisDeviceStateD0:
*params->filter = params->saved_filter;
goto update_linkstate;
case NdisDeviceStateD3:
case NdisDeviceStateD2:
case NdisDeviceStateD1:
params->saved_filter = *params->filter;
retval = 0;
break;
}
break;
#ifdef RNDIS_WAKEUP
// no wakeup support advertised, so wakeup OIDs always fail:
// - OID_PNP_ENABLE_WAKE_UP
// - OID_PNP_{ADD,REMOVE}_WAKE_UP_PATTERN
#endif
#endif /* RNDIS_PM */
default:
printk (KERN_WARNING "%s: set unknown OID 0x%08X, size %d\n",
__FUNCTION__, OID, buf_len);
}
return retval;
}
/*
* Response Functions
*/
static int rndis_init_response (int configNr, rndis_init_msg_type *buf)
{
rndis_init_cmplt_type *resp;
rndis_resp_t *r;
if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP;
r = rndis_add_response (configNr, sizeof (rndis_init_cmplt_type));
if (!r)
return -ENOMEM;
resp = (rndis_init_cmplt_type *) r->buf;
resp->MessageType = __constant_cpu_to_le32 (
REMOTE_NDIS_INITIALIZE_CMPLT);
resp->MessageLength = __constant_cpu_to_le32 (52);
resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
resp->MajorVersion = __constant_cpu_to_le32 (RNDIS_MAJOR_VERSION);
resp->MinorVersion = __constant_cpu_to_le32 (RNDIS_MINOR_VERSION);
resp->DeviceFlags = __constant_cpu_to_le32 (RNDIS_DF_CONNECTIONLESS);
resp->Medium = __constant_cpu_to_le32 (RNDIS_MEDIUM_802_3);
resp->MaxPacketsPerTransfer = __constant_cpu_to_le32 (1);
resp->MaxTransferSize = cpu_to_le32 (
rndis_per_dev_params [configNr].dev->mtu
+ sizeof (struct ethhdr)
+ sizeof (struct rndis_packet_msg_type)
+ 22);
resp->PacketAlignmentFactor = __constant_cpu_to_le32 (0);
resp->AFListOffset = __constant_cpu_to_le32 (0);
resp->AFListSize = __constant_cpu_to_le32 (0);
if (rndis_per_dev_params [configNr].ack)
rndis_per_dev_params [configNr].ack (
rndis_per_dev_params [configNr].dev);
return 0;
}
static int rndis_query_response (int configNr, rndis_query_msg_type *buf)
{
rndis_query_cmplt_type *resp;
rndis_resp_t *r;
// DEBUG("%s: OID = %08X\n", __FUNCTION__, cpu_to_le32(buf->OID));
if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP;
/*
* we need more memory:
* gen_ndis_query_resp expects enough space for
* rndis_query_cmplt_type followed by data.
* oid_supported_list is the largest data reply
*/
r = rndis_add_response (configNr,
sizeof (oid_supported_list) + sizeof(rndis_query_cmplt_type));
if (!r)
return -ENOMEM;
resp = (rndis_query_cmplt_type *) r->buf;
resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_QUERY_CMPLT);
resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
if (gen_ndis_query_resp (configNr, le32_to_cpu (buf->OID),
le32_to_cpu(buf->InformationBufferOffset)
+ 8 + (u8 *) buf,
le32_to_cpu(buf->InformationBufferLength),
r)) {
/* OID not supported */
resp->Status = __constant_cpu_to_le32 (
RNDIS_STATUS_NOT_SUPPORTED);
resp->MessageLength = __constant_cpu_to_le32 (sizeof *resp);
resp->InformationBufferLength = __constant_cpu_to_le32 (0);
resp->InformationBufferOffset = __constant_cpu_to_le32 (0);
} else
resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
if (rndis_per_dev_params [configNr].ack)
rndis_per_dev_params [configNr].ack (
rndis_per_dev_params [configNr].dev);
return 0;
}
static int rndis_set_response (int configNr, rndis_set_msg_type *buf)
{
u32 BufLength, BufOffset;
rndis_set_cmplt_type *resp;
rndis_resp_t *r;
r = rndis_add_response (configNr, sizeof (rndis_set_cmplt_type));
if (!r)
return -ENOMEM;
resp = (rndis_set_cmplt_type *) r->buf;
BufLength = le32_to_cpu (buf->InformationBufferLength);
BufOffset = le32_to_cpu (buf->InformationBufferOffset);
#ifdef VERBOSE
DEBUG("%s: Length: %d\n", __FUNCTION__, BufLength);
DEBUG("%s: Offset: %d\n", __FUNCTION__, BufOffset);
DEBUG("%s: InfoBuffer: ", __FUNCTION__);
for (i = 0; i < BufLength; i++) {
DEBUG ("%02x ", *(((u8 *) buf) + i + 8 + BufOffset));
}
DEBUG ("\n");
#endif
resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_SET_CMPLT);
resp->MessageLength = __constant_cpu_to_le32 (16);
resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
if (gen_ndis_set_resp (configNr, le32_to_cpu (buf->OID),
((u8 *) buf) + 8 + BufOffset, BufLength, r))
resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_NOT_SUPPORTED);
else
resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
if (rndis_per_dev_params [configNr].ack)
rndis_per_dev_params [configNr].ack (
rndis_per_dev_params [configNr].dev);
return 0;
}
static int rndis_reset_response (int configNr, rndis_reset_msg_type *buf)
{
rndis_reset_cmplt_type *resp;
rndis_resp_t *r;
r = rndis_add_response (configNr, sizeof (rndis_reset_cmplt_type));
if (!r)
return -ENOMEM;
resp = (rndis_reset_cmplt_type *) r->buf;
resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_RESET_CMPLT);
resp->MessageLength = __constant_cpu_to_le32 (16);
resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
/* resent information */
resp->AddressingReset = __constant_cpu_to_le32 (1);
if (rndis_per_dev_params [configNr].ack)
rndis_per_dev_params [configNr].ack (
rndis_per_dev_params [configNr].dev);
return 0;
}
static int rndis_keepalive_response (int configNr,
rndis_keepalive_msg_type *buf)
{
rndis_keepalive_cmplt_type *resp;
rndis_resp_t *r;
/* host "should" check only in RNDIS_DATA_INITIALIZED state */
r = rndis_add_response (configNr, sizeof (rndis_keepalive_cmplt_type));
if (!r)
return -ENOMEM;
resp = (rndis_keepalive_cmplt_type *) r->buf;
resp->MessageType = __constant_cpu_to_le32 (
REMOTE_NDIS_KEEPALIVE_CMPLT);
resp->MessageLength = __constant_cpu_to_le32 (16);
resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
if (rndis_per_dev_params [configNr].ack)
rndis_per_dev_params [configNr].ack (
rndis_per_dev_params [configNr].dev);
return 0;
}
/*
* Device to Host Comunication
*/
static int rndis_indicate_status_msg (int configNr, u32 status)
{
rndis_indicate_status_msg_type *resp;
rndis_resp_t *r;
if (rndis_per_dev_params [configNr].state == RNDIS_UNINITIALIZED)
return -ENOTSUPP;
r = rndis_add_response (configNr,
sizeof (rndis_indicate_status_msg_type));
if (!r)
return -ENOMEM;
resp = (rndis_indicate_status_msg_type *) r->buf;
resp->MessageType = __constant_cpu_to_le32 (
REMOTE_NDIS_INDICATE_STATUS_MSG);
resp->MessageLength = __constant_cpu_to_le32 (20);
resp->Status = cpu_to_le32 (status);
resp->StatusBufferLength = __constant_cpu_to_le32 (0);
resp->StatusBufferOffset = __constant_cpu_to_le32 (0);
if (rndis_per_dev_params [configNr].ack)
rndis_per_dev_params [configNr].ack (
rndis_per_dev_params [configNr].dev);
return 0;
}
int rndis_signal_connect (int configNr)
{
rndis_per_dev_params [configNr].media_state
= NDIS_MEDIA_STATE_CONNECTED;
return rndis_indicate_status_msg (configNr,
RNDIS_STATUS_MEDIA_CONNECT);
}
int rndis_signal_disconnect (int configNr)
{
rndis_per_dev_params [configNr].media_state
= NDIS_MEDIA_STATE_DISCONNECTED;
return rndis_indicate_status_msg (configNr,
RNDIS_STATUS_MEDIA_DISCONNECT);
}
void rndis_uninit (int configNr)
{
u8 *buf;
u32 length;
if (configNr >= RNDIS_MAX_CONFIGS)
return;
rndis_per_dev_params [configNr].used = 0;
rndis_per_dev_params [configNr].state = RNDIS_UNINITIALIZED;
/* drain the response queue */
while ((buf = rndis_get_next_response(configNr, &length)))
rndis_free_response(configNr, buf);
}
void rndis_set_host_mac (int configNr, const u8 *addr)
{
rndis_per_dev_params [configNr].host_mac = addr;
}
/*
* Message Parser
*/
int rndis_msg_parser (u8 configNr, u8 *buf)
{
u32 MsgType, MsgLength;
__le32 *tmp;
struct rndis_params *params;
if (!buf)
return -ENOMEM;
tmp = (__le32 *) buf;
MsgType = le32_to_cpu(get_unaligned(tmp++));
MsgLength = le32_to_cpu(get_unaligned(tmp++));
if (configNr >= RNDIS_MAX_CONFIGS)
return -ENOTSUPP;
params = &rndis_per_dev_params [configNr];
/* NOTE: RNDIS is *EXTREMELY* chatty ... Windows constantly polls for
* rx/tx statistics and link status, in addition to KEEPALIVE traffic
* and normal HC level polling to see if there's any IN traffic.
*/
/* For USB: responses may take up to 10 seconds */
switch (MsgType) {
case REMOTE_NDIS_INITIALIZE_MSG:
DEBUG("%s: REMOTE_NDIS_INITIALIZE_MSG\n",
__FUNCTION__ );
params->state = RNDIS_INITIALIZED;
return rndis_init_response (configNr,
(rndis_init_msg_type *) buf);
case REMOTE_NDIS_HALT_MSG:
DEBUG("%s: REMOTE_NDIS_HALT_MSG\n",
__FUNCTION__ );
params->state = RNDIS_UNINITIALIZED;
if (params->dev) {
netif_carrier_off (params->dev);
netif_stop_queue (params->dev);
}
return 0;
case REMOTE_NDIS_QUERY_MSG:
return rndis_query_response (configNr,
(rndis_query_msg_type *) buf);
case REMOTE_NDIS_SET_MSG:
return rndis_set_response (configNr,
(rndis_set_msg_type *) buf);
case REMOTE_NDIS_RESET_MSG:
DEBUG("%s: REMOTE_NDIS_RESET_MSG\n",
__FUNCTION__ );
return rndis_reset_response (configNr,
(rndis_reset_msg_type *) buf);
case REMOTE_NDIS_KEEPALIVE_MSG:
/* For USB: host does this every 5 seconds */
if (rndis_debug > 1)
DEBUG("%s: REMOTE_NDIS_KEEPALIVE_MSG\n",
__FUNCTION__ );
return rndis_keepalive_response (configNr,
(rndis_keepalive_msg_type *)
buf);
default:
/* At least Windows XP emits some undefined RNDIS messages.
* In one case those messages seemed to relate to the host
* suspending itself.
*/
printk (KERN_WARNING
"%s: unknown RNDIS message 0x%08X len %d\n",
__FUNCTION__ , MsgType, MsgLength);
{
unsigned i;
for (i = 0; i < MsgLength; i += 16) {
DEBUG ("%03d: "
" %02x %02x %02x %02x"
" %02x %02x %02x %02x"
" %02x %02x %02x %02x"
" %02x %02x %02x %02x"
"\n",
i,
buf[i], buf [i+1],
buf[i+2], buf[i+3],
buf[i+4], buf [i+5],
buf[i+6], buf[i+7],
buf[i+8], buf [i+9],
buf[i+10], buf[i+11],
buf[i+12], buf [i+13],
buf[i+14], buf[i+15]);
}
}
break;
}
return -ENOTSUPP;
}
int rndis_register (int (* rndis_control_ack) (struct net_device *))
{
u8 i;
for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
if (!rndis_per_dev_params [i].used) {
rndis_per_dev_params [i].used = 1;
rndis_per_dev_params [i].ack = rndis_control_ack;
DEBUG("%s: configNr = %d\n", __FUNCTION__, i);
return i;
}
}
DEBUG("failed\n");
return -1;
}
void rndis_deregister (int configNr)
{
DEBUG("%s: \n", __FUNCTION__ );
if (configNr >= RNDIS_MAX_CONFIGS) return;
rndis_per_dev_params [configNr].used = 0;
return;
}
int rndis_set_param_dev (u8 configNr, struct net_device *dev,
struct net_device_stats *stats,
u16 *cdc_filter)
{
DEBUG("%s:\n", __FUNCTION__ );
if (!dev || !stats) return -1;
if (configNr >= RNDIS_MAX_CONFIGS) return -1;
rndis_per_dev_params [configNr].dev = dev;
rndis_per_dev_params [configNr].stats = stats;
rndis_per_dev_params [configNr].filter = cdc_filter;
return 0;
}
int rndis_set_param_vendor (u8 configNr, u32 vendorID, const char *vendorDescr)
{
DEBUG("%s:\n", __FUNCTION__ );
if (!vendorDescr) return -1;
if (configNr >= RNDIS_MAX_CONFIGS) return -1;
rndis_per_dev_params [configNr].vendorID = vendorID;
rndis_per_dev_params [configNr].vendorDescr = vendorDescr;
return 0;
}
int rndis_set_param_medium (u8 configNr, u32 medium, u32 speed)
{
DEBUG("%s: %u %u\n", __FUNCTION__, medium, speed);
if (configNr >= RNDIS_MAX_CONFIGS) return -1;
rndis_per_dev_params [configNr].medium = medium;
rndis_per_dev_params [configNr].speed = speed;
return 0;
}
void rndis_add_hdr (struct sk_buff *skb)
{
struct rndis_packet_msg_type *header;
if (!skb)
return;
header = (void *) skb_push (skb, sizeof *header);
memset (header, 0, sizeof *header);
header->MessageType = __constant_cpu_to_le32(REMOTE_NDIS_PACKET_MSG);
header->MessageLength = cpu_to_le32(skb->len);
header->DataOffset = __constant_cpu_to_le32 (36);
header->DataLength = cpu_to_le32(skb->len - sizeof *header);
}
void rndis_free_response (int configNr, u8 *buf)
{
rndis_resp_t *r;
struct list_head *act, *tmp;
list_for_each_safe (act, tmp,
&(rndis_per_dev_params [configNr].resp_queue))
{
r = list_entry (act, rndis_resp_t, list);
if (r && r->buf == buf) {
list_del (&r->list);
kfree (r);
}
}
}
u8 *rndis_get_next_response (int configNr, u32 *length)
{
rndis_resp_t *r;
struct list_head *act, *tmp;
if (!length) return NULL;
list_for_each_safe (act, tmp,
&(rndis_per_dev_params [configNr].resp_queue))
{
r = list_entry (act, rndis_resp_t, list);
if (!r->send) {
r->send = 1;
*length = r->length;
return r->buf;
}
}
return NULL;
}
static rndis_resp_t *rndis_add_response (int configNr, u32 length)
{
rndis_resp_t *r;
/* NOTE: this gets copied into ether.c USB_BUFSIZ bytes ... */
r = kmalloc (sizeof (rndis_resp_t) + length, GFP_ATOMIC);
if (!r) return NULL;
r->buf = (u8 *) (r + 1);
r->length = length;
r->send = 0;
list_add_tail (&r->list,
&(rndis_per_dev_params [configNr].resp_queue));
return r;
}
int rndis_rm_hdr(struct sk_buff *skb)
{
/* tmp points to a struct rndis_packet_msg_type */
__le32 *tmp = (void *) skb->data;
/* MessageType, MessageLength */
if (__constant_cpu_to_le32(REMOTE_NDIS_PACKET_MSG)
!= get_unaligned(tmp++))
return -EINVAL;
tmp++;
/* DataOffset, DataLength */
if (!skb_pull(skb, le32_to_cpu(get_unaligned(tmp++))
+ 8 /* offset of DataOffset */))
return -EOVERFLOW;
skb_trim(skb, le32_to_cpu(get_unaligned(tmp++)));
return 0;
}
#ifdef CONFIG_USB_GADGET_DEBUG_FILES
static int rndis_proc_read (char *page, char **start, off_t off, int count, int *eof,
void *data)
{
char *out = page;
int len;
rndis_params *param = (rndis_params *) data;
out += snprintf (out, count,
"Config Nr. %d\n"
"used : %s\n"
"state : %s\n"
"medium : 0x%08X\n"
"speed : %d\n"
"cable : %s\n"
"vendor ID : 0x%08X\n"
"vendor : %s\n",
param->confignr, (param->used) ? "y" : "n",
({ char *s = "?";
switch (param->state) {
case RNDIS_UNINITIALIZED:
s = "RNDIS_UNINITIALIZED"; break;
case RNDIS_INITIALIZED:
s = "RNDIS_INITIALIZED"; break;
case RNDIS_DATA_INITIALIZED:
s = "RNDIS_DATA_INITIALIZED"; break;
}; s; }),
param->medium,
(param->media_state) ? 0 : param->speed*100,
(param->media_state) ? "disconnected" : "connected",
param->vendorID, param->vendorDescr);
len = out - page;
len -= off;
if (len < count) {
*eof = 1;
if (len <= 0)
return 0;
} else
len = count;
*start = page + off;
return len;
}
static int rndis_proc_write (struct file *file, const char __user *buffer,
unsigned long count, void *data)
{
rndis_params *p = data;
u32 speed = 0;
int i, fl_speed = 0;
for (i = 0; i < count; i++) {
char c;
if (get_user(c, buffer))
return -EFAULT;
switch (c) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
fl_speed = 1;
speed = speed*10 + c - '0';
break;
case 'C':
case 'c':
rndis_signal_connect (p->confignr);
break;
case 'D':
case 'd':
rndis_signal_disconnect(p->confignr);
break;
default:
if (fl_speed) p->speed = speed;
else DEBUG ("%c is not valid\n", c);
break;
}
buffer++;
}
return count;
}
#define NAME_TEMPLATE "driver/rndis-%03d"
static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS];
#endif /* CONFIG_USB_GADGET_DEBUG_FILES */
int __devinit rndis_init (void)
{
u8 i;
for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
#ifdef CONFIG_USB_GADGET_DEBUG_FILES
char name [20];
sprintf (name, NAME_TEMPLATE, i);
if (!(rndis_connect_state [i]
= create_proc_entry (name, 0660, NULL)))
{
DEBUG ("%s :remove entries", __FUNCTION__);
while (i) {
sprintf (name, NAME_TEMPLATE, --i);
remove_proc_entry (name, NULL);
}
DEBUG ("\n");
return -EIO;
}
rndis_connect_state [i]->write_proc = rndis_proc_write;
rndis_connect_state [i]->read_proc = rndis_proc_read;
rndis_connect_state [i]->data = (void *)
(rndis_per_dev_params + i);
#endif
rndis_per_dev_params [i].confignr = i;
rndis_per_dev_params [i].used = 0;
rndis_per_dev_params [i].state = RNDIS_UNINITIALIZED;
rndis_per_dev_params [i].media_state
= NDIS_MEDIA_STATE_DISCONNECTED;
INIT_LIST_HEAD (&(rndis_per_dev_params [i].resp_queue));
}
return 0;
}
void rndis_exit (void)
{
#ifdef CONFIG_USB_GADGET_DEBUG_FILES
u8 i;
char name [20];
for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
sprintf (name, NAME_TEMPLATE, i);
remove_proc_entry (name, NULL);
}
#endif
}
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