Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1 | /* |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 2 | * Copyright (c) 2009, Microsoft Corporation. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms and conditions of the GNU General Public License, |
| 6 | * version 2, as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 11 | * more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along with |
| 14 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
| 15 | * Place - Suite 330, Boston, MA 02111-1307 USA. |
| 16 | * |
| 17 | * Authors: |
| 18 | * Haiyang Zhang <haiyangz@microsoft.com> |
| 19 | * Hank Janssen <hjanssen@microsoft.com> |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 20 | */ |
Greg Kroah-Hartman | 5654e93 | 2009-07-14 15:08:20 -0700 | [diff] [blame] | 21 | #include <linux/kernel.h> |
Bill Pemberton | 45da89e | 2009-07-29 17:00:15 -0400 | [diff] [blame] | 22 | #include <linux/highmem.h> |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 23 | #include <linux/io.h> |
Greg Kroah-Hartman | 4983b39 | 2009-08-19 16:14:47 -0700 | [diff] [blame] | 24 | #include "osd.h" |
Greg Kroah-Hartman | 645954c | 2009-08-28 16:22:59 -0700 | [diff] [blame] | 25 | #include "logging.h" |
Greg Kroah-Hartman | cc211812 | 2009-08-28 16:23:17 -0700 | [diff] [blame] | 26 | #include "NetVscApi.h" |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 27 | #include "RndisFilter.h" |
| 28 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 29 | /* Data types */ |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 30 | struct rndis_filter_driver_object { |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 31 | /* The original driver */ |
Greg Kroah-Hartman | 7e23a6e | 2009-08-27 15:58:15 -0700 | [diff] [blame] | 32 | struct netvsc_driver InnerDriver; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 33 | }; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 34 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 35 | enum rndis_device_state { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 36 | RNDIS_DEV_UNINITIALIZED = 0, |
| 37 | RNDIS_DEV_INITIALIZING, |
| 38 | RNDIS_DEV_INITIALIZED, |
| 39 | RNDIS_DEV_DATAINITIALIZED, |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 40 | }; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 41 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 42 | struct rndis_device { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 43 | struct NETVSC_DEVICE *NetDevice; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 44 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 45 | enum rndis_device_state State; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 46 | u32 LinkStatus; |
Bill Pemberton | f488841 | 2009-07-29 17:00:12 -0400 | [diff] [blame] | 47 | atomic_t NewRequestId; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 48 | |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 49 | spinlock_t request_lock; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 50 | LIST_ENTRY RequestList; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 51 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 52 | unsigned char HwMacAddr[HW_MACADDR_LEN]; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 53 | }; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 54 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 55 | struct rndis_request { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 56 | LIST_ENTRY ListEntry; |
Bill Pemberton | aedb444 | 2009-07-28 13:46:24 -0400 | [diff] [blame] | 57 | struct osd_waitevent *WaitEvent; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 58 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 59 | /* |
| 60 | * FIXME: We assumed a fixed size response here. If we do ever need to |
| 61 | * handle a bigger response, we can either define a max response |
| 62 | * message or add a response buffer variable above this field |
| 63 | */ |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 64 | struct rndis_message ResponseMessage; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 65 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 66 | /* Simplify allocation by having a netvsc packet inline */ |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 67 | struct hv_netvsc_packet Packet; |
Greg Kroah-Hartman | ee3d7dd | 2009-08-20 12:17:36 -0700 | [diff] [blame] | 68 | struct hv_page_buffer Buffer; |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 69 | /* FIXME: We assumed a fixed size request here. */ |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 70 | struct rndis_message RequestMessage; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 71 | }; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 72 | |
| 73 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 74 | struct rndis_filter_packet { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 75 | void *CompletionContext; |
| 76 | PFN_ON_SENDRECVCOMPLETION OnCompletion; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 77 | struct rndis_message Message; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 78 | }; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 79 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 80 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 81 | static int RndisFilterOnDeviceAdd(struct hv_device *Device, |
| 82 | void *AdditionalInfo); |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 83 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 84 | static int RndisFilterOnDeviceRemove(struct hv_device *Device); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 85 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 86 | static void RndisFilterOnCleanup(struct hv_driver *Driver); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 87 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 88 | static int RndisFilterOnOpen(struct hv_device *Device); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 89 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 90 | static int RndisFilterOnClose(struct hv_device *Device); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 91 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 92 | static int RndisFilterOnSend(struct hv_device *Device, |
| 93 | struct hv_netvsc_packet *Packet); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 94 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 95 | static void RndisFilterOnSendCompletion(void *Context); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 96 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 97 | static void RndisFilterOnSendRequestCompletion(void *Context); |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 98 | |
| 99 | |
| 100 | /* The one and only */ |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 101 | static struct rndis_filter_driver_object gRndisFilter; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 102 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 103 | static struct rndis_device *GetRndisDevice(void) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 104 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 105 | struct rndis_device *device; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 106 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 107 | device = kzalloc(sizeof(struct rndis_device), GFP_KERNEL); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 108 | if (!device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 109 | return NULL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 110 | |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 111 | spin_lock_init(&device->request_lock); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 112 | |
| 113 | INITIALIZE_LIST_HEAD(&device->RequestList); |
| 114 | |
| 115 | device->State = RNDIS_DEV_UNINITIALIZED; |
| 116 | |
| 117 | return device; |
| 118 | } |
| 119 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 120 | static struct rndis_request *GetRndisRequest(struct rndis_device *Device, |
| 121 | u32 MessageType, |
| 122 | u32 MessageLength) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 123 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 124 | struct rndis_request *request; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 125 | struct rndis_message *rndisMessage; |
| 126 | struct rndis_set_request *set; |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 127 | unsigned long flags; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 128 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 129 | request = kzalloc(sizeof(struct rndis_request), GFP_KERNEL); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 130 | if (!request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 131 | return NULL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 132 | |
Greg Kroah-Hartman | bfc30aa | 2009-07-29 15:40:18 -0700 | [diff] [blame] | 133 | request->WaitEvent = osd_WaitEventCreate(); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 134 | if (!request->WaitEvent) { |
Greg Kroah-Hartman | 8c69f52 | 2009-07-15 12:48:29 -0700 | [diff] [blame] | 135 | kfree(request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 136 | return NULL; |
| 137 | } |
| 138 | |
| 139 | rndisMessage = &request->RequestMessage; |
| 140 | rndisMessage->NdisMessageType = MessageType; |
| 141 | rndisMessage->MessageLength = MessageLength; |
| 142 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 143 | /* |
| 144 | * Set the request id. This field is always after the rndis header for |
| 145 | * request/response packet types so we just used the SetRequest as a |
| 146 | * template |
| 147 | */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 148 | set = &rndisMessage->Message.SetRequest; |
Bill Pemberton | f488841 | 2009-07-29 17:00:12 -0400 | [diff] [blame] | 149 | set->RequestId = atomic_inc_return(&Device->NewRequestId); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 150 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 151 | /* Add to the request list */ |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 152 | spin_lock_irqsave(&Device->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 153 | INSERT_TAIL_LIST(&Device->RequestList, &request->ListEntry); |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 154 | spin_unlock_irqrestore(&Device->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 155 | |
| 156 | return request; |
| 157 | } |
| 158 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 159 | static void PutRndisRequest(struct rndis_device *Device, |
| 160 | struct rndis_request *Request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 161 | { |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 162 | unsigned long flags; |
| 163 | |
| 164 | spin_lock_irqsave(&Device->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 165 | REMOVE_ENTRY_LIST(&Request->ListEntry); |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 166 | spin_unlock_irqrestore(&Device->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 167 | |
Bill Pemberton | 420beac | 2009-07-29 17:00:10 -0400 | [diff] [blame] | 168 | kfree(Request->WaitEvent); |
Greg Kroah-Hartman | 8c69f52 | 2009-07-15 12:48:29 -0700 | [diff] [blame] | 169 | kfree(Request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 170 | } |
| 171 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 172 | static void DumpRndisMessage(struct rndis_message *RndisMessage) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 173 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 174 | switch (RndisMessage->NdisMessageType) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 175 | case REMOTE_NDIS_PACKET_MSG: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 176 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_PACKET_MSG (len %u, " |
| 177 | "data offset %u data len %u, # oob %u, " |
| 178 | "oob offset %u, oob len %u, pkt offset %u, " |
| 179 | "pkt len %u", |
| 180 | RndisMessage->MessageLength, |
| 181 | RndisMessage->Message.Packet.DataOffset, |
| 182 | RndisMessage->Message.Packet.DataLength, |
| 183 | RndisMessage->Message.Packet.NumOOBDataElements, |
| 184 | RndisMessage->Message.Packet.OOBDataOffset, |
| 185 | RndisMessage->Message.Packet.OOBDataLength, |
| 186 | RndisMessage->Message.Packet.PerPacketInfoOffset, |
| 187 | RndisMessage->Message.Packet.PerPacketInfoLength); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 188 | break; |
| 189 | |
| 190 | case REMOTE_NDIS_INITIALIZE_CMPLT: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 191 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_INITIALIZE_CMPLT " |
| 192 | "(len %u, id 0x%x, status 0x%x, major %d, minor %d, " |
| 193 | "device flags %d, max xfer size 0x%x, max pkts %u, " |
| 194 | "pkt aligned %u)", |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 195 | RndisMessage->MessageLength, |
| 196 | RndisMessage->Message.InitializeComplete.RequestId, |
| 197 | RndisMessage->Message.InitializeComplete.Status, |
| 198 | RndisMessage->Message.InitializeComplete.MajorVersion, |
| 199 | RndisMessage->Message.InitializeComplete.MinorVersion, |
| 200 | RndisMessage->Message.InitializeComplete.DeviceFlags, |
| 201 | RndisMessage->Message.InitializeComplete.MaxTransferSize, |
| 202 | RndisMessage->Message.InitializeComplete.MaxPacketsPerMessage, |
| 203 | RndisMessage->Message.InitializeComplete.PacketAlignmentFactor); |
| 204 | break; |
| 205 | |
| 206 | case REMOTE_NDIS_QUERY_CMPLT: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 207 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_QUERY_CMPLT " |
| 208 | "(len %u, id 0x%x, status 0x%x, buf len %u, " |
| 209 | "buf offset %u)", |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 210 | RndisMessage->MessageLength, |
| 211 | RndisMessage->Message.QueryComplete.RequestId, |
| 212 | RndisMessage->Message.QueryComplete.Status, |
| 213 | RndisMessage->Message.QueryComplete.InformationBufferLength, |
| 214 | RndisMessage->Message.QueryComplete.InformationBufferOffset); |
| 215 | break; |
| 216 | |
| 217 | case REMOTE_NDIS_SET_CMPLT: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 218 | DPRINT_DBG(NETVSC, |
| 219 | "REMOTE_NDIS_SET_CMPLT (len %u, id 0x%x, status 0x%x)", |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 220 | RndisMessage->MessageLength, |
| 221 | RndisMessage->Message.SetComplete.RequestId, |
| 222 | RndisMessage->Message.SetComplete.Status); |
| 223 | break; |
| 224 | |
| 225 | case REMOTE_NDIS_INDICATE_STATUS_MSG: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 226 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_INDICATE_STATUS_MSG " |
| 227 | "(len %u, status 0x%x, buf len %u, buf offset %u)", |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 228 | RndisMessage->MessageLength, |
| 229 | RndisMessage->Message.IndicateStatus.Status, |
| 230 | RndisMessage->Message.IndicateStatus.StatusBufferLength, |
| 231 | RndisMessage->Message.IndicateStatus.StatusBufferOffset); |
| 232 | break; |
| 233 | |
| 234 | default: |
| 235 | DPRINT_DBG(NETVSC, "0x%x (len %u)", |
| 236 | RndisMessage->NdisMessageType, |
| 237 | RndisMessage->MessageLength); |
| 238 | break; |
| 239 | } |
| 240 | } |
| 241 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 242 | static int RndisFilterSendRequest(struct rndis_device *Device, |
| 243 | struct rndis_request *Request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 244 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 245 | int ret; |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 246 | struct hv_netvsc_packet *packet; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 247 | |
| 248 | DPRINT_ENTER(NETVSC); |
| 249 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 250 | /* Setup the packet to send it */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 251 | packet = &Request->Packet; |
| 252 | |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 253 | packet->IsDataPacket = false; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 254 | packet->TotalDataBufferLength = Request->RequestMessage.MessageLength; |
| 255 | packet->PageBufferCount = 1; |
| 256 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 257 | packet->PageBuffers[0].Pfn = virt_to_phys(&Request->RequestMessage) >> |
| 258 | PAGE_SHIFT; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 259 | packet->PageBuffers[0].Length = Request->RequestMessage.MessageLength; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 260 | packet->PageBuffers[0].Offset = |
| 261 | (unsigned long)&Request->RequestMessage & (PAGE_SIZE - 1); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 262 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 263 | packet->Completion.Send.SendCompletionContext = Request;/* packet; */ |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 264 | packet->Completion.Send.OnSendCompletion = |
| 265 | RndisFilterOnSendRequestCompletion; |
Greg Kroah-Hartman | c4b0bc9 | 2009-07-14 15:12:46 -0700 | [diff] [blame] | 266 | packet->Completion.Send.SendCompletionTid = (unsigned long)Device; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 267 | |
| 268 | ret = gRndisFilter.InnerDriver.OnSend(Device->NetDevice->Device, packet); |
| 269 | DPRINT_EXIT(NETVSC); |
| 270 | return ret; |
| 271 | } |
| 272 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 273 | static void RndisFilterReceiveResponse(struct rndis_device *Device, |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 274 | struct rndis_message *Response) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 275 | { |
| 276 | LIST_ENTRY *anchor; |
| 277 | LIST_ENTRY *curr; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 278 | struct rndis_request *request = NULL; |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 279 | bool found = false; |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 280 | unsigned long flags; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 281 | |
| 282 | DPRINT_ENTER(NETVSC); |
| 283 | |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 284 | spin_lock_irqsave(&Device->request_lock, flags); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 285 | ITERATE_LIST_ENTRIES(anchor, curr, &Device->RequestList) { |
| 286 | request = CONTAINING_RECORD(curr, struct rndis_request, |
| 287 | ListEntry); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 288 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 289 | /* |
| 290 | * All request/response message contains RequestId as the 1st |
| 291 | * field |
| 292 | */ |
| 293 | if (request->RequestMessage.Message.InitializeRequest.RequestId |
| 294 | == Response->Message.InitializeComplete.RequestId) { |
| 295 | DPRINT_DBG(NETVSC, "found rndis request for " |
| 296 | "this response (id 0x%x req type 0x%x res " |
| 297 | "type 0x%x)", |
| 298 | request->RequestMessage.Message.InitializeRequest.RequestId, |
| 299 | request->RequestMessage.NdisMessageType, |
| 300 | Response->NdisMessageType); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 301 | |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 302 | found = true; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 303 | break; |
| 304 | } |
| 305 | } |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 306 | spin_unlock_irqrestore(&Device->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 307 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 308 | if (found) { |
| 309 | if (Response->MessageLength <= sizeof(struct rndis_message)) { |
| 310 | memcpy(&request->ResponseMessage, Response, |
| 311 | Response->MessageLength); |
| 312 | } else { |
| 313 | DPRINT_ERR(NETVSC, "rndis response buffer overflow " |
| 314 | "detected (size %u max %zu)", |
| 315 | Response->MessageLength, |
| 316 | sizeof(struct rndis_filter_packet)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 317 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 318 | if (Response->NdisMessageType == |
| 319 | REMOTE_NDIS_RESET_CMPLT) { |
| 320 | /* does not have a request id field */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 321 | request->ResponseMessage.Message.ResetComplete.Status = STATUS_BUFFER_OVERFLOW; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 322 | } else { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 323 | request->ResponseMessage.Message.InitializeComplete.Status = STATUS_BUFFER_OVERFLOW; |
| 324 | } |
| 325 | } |
| 326 | |
Greg Kroah-Hartman | bfc30aa | 2009-07-29 15:40:18 -0700 | [diff] [blame] | 327 | osd_WaitEventSet(request->WaitEvent); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 328 | } else { |
| 329 | DPRINT_ERR(NETVSC, "no rndis request found for this response " |
| 330 | "(id 0x%x res type 0x%x)", |
| 331 | Response->Message.InitializeComplete.RequestId, |
| 332 | Response->NdisMessageType); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 333 | } |
| 334 | |
| 335 | DPRINT_EXIT(NETVSC); |
| 336 | } |
| 337 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 338 | static void RndisFilterReceiveIndicateStatus(struct rndis_device *Device, |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 339 | struct rndis_message *Response) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 340 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 341 | struct rndis_indicate_status *indicate = |
| 342 | &Response->Message.IndicateStatus; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 343 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 344 | if (indicate->Status == RNDIS_STATUS_MEDIA_CONNECT) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 345 | gRndisFilter.InnerDriver.OnLinkStatusChanged(Device->NetDevice->Device, 1); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 346 | } else if (indicate->Status == RNDIS_STATUS_MEDIA_DISCONNECT) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 347 | gRndisFilter.InnerDriver.OnLinkStatusChanged(Device->NetDevice->Device, 0); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 348 | } else { |
| 349 | /* |
| 350 | * TODO: |
| 351 | */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 352 | } |
| 353 | } |
| 354 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 355 | static void RndisFilterReceiveData(struct rndis_device *Device, |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 356 | struct rndis_message *Message, |
| 357 | struct hv_netvsc_packet *Packet) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 358 | { |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 359 | struct rndis_packet *rndisPacket; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 360 | u32 dataOffset; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 361 | |
| 362 | DPRINT_ENTER(NETVSC); |
| 363 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 364 | /* empty ethernet frame ?? */ |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 365 | ASSERT(Packet->PageBuffers[0].Length > |
| 366 | RNDIS_MESSAGE_SIZE(struct rndis_packet)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 367 | |
| 368 | rndisPacket = &Message->Message.Packet; |
| 369 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 370 | /* |
| 371 | * FIXME: Handle multiple rndis pkt msgs that maybe enclosed in this |
| 372 | * netvsc packet (ie TotalDataBufferLength != MessageLength) |
| 373 | */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 374 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 375 | /* Remove the rndis header and pass it back up the stack */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 376 | dataOffset = RNDIS_HEADER_SIZE + rndisPacket->DataOffset; |
| 377 | |
| 378 | Packet->TotalDataBufferLength -= dataOffset; |
| 379 | Packet->PageBuffers[0].Offset += dataOffset; |
| 380 | Packet->PageBuffers[0].Length -= dataOffset; |
| 381 | |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 382 | Packet->IsDataPacket = true; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 383 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 384 | gRndisFilter.InnerDriver.OnReceiveCallback(Device->NetDevice->Device, |
| 385 | Packet); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 386 | |
| 387 | DPRINT_EXIT(NETVSC); |
| 388 | } |
| 389 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 390 | static int RndisFilterOnReceive(struct hv_device *Device, |
| 391 | struct hv_netvsc_packet *Packet) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 392 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 393 | struct NETVSC_DEVICE *netDevice = Device->Extension; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 394 | struct rndis_device *rndisDevice; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 395 | struct rndis_message rndisMessage; |
| 396 | struct rndis_message *rndisHeader; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 397 | |
| 398 | DPRINT_ENTER(NETVSC); |
| 399 | |
| 400 | ASSERT(netDevice); |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 401 | /* Make sure the rndis device state is initialized */ |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 402 | if (!netDevice->Extension) { |
| 403 | DPRINT_ERR(NETVSC, "got rndis message but no rndis device..." |
| 404 | "dropping this message!"); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 405 | DPRINT_EXIT(NETVSC); |
| 406 | return -1; |
| 407 | } |
| 408 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 409 | rndisDevice = (struct rndis_device *)netDevice->Extension; |
| 410 | if (rndisDevice->State == RNDIS_DEV_UNINITIALIZED) { |
| 411 | DPRINT_ERR(NETVSC, "got rndis message but rndis device " |
| 412 | "uninitialized...dropping this message!"); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 413 | DPRINT_EXIT(NETVSC); |
| 414 | return -1; |
| 415 | } |
| 416 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 417 | rndisHeader = (struct rndis_message *)kmap_atomic( |
| 418 | pfn_to_page(Packet->PageBuffers[0].Pfn), KM_IRQ0); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 419 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 420 | rndisHeader = (void *)((unsigned long)rndisHeader + |
| 421 | Packet->PageBuffers[0].Offset); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 422 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 423 | /* Make sure we got a valid rndis message */ |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 424 | /* |
| 425 | * FIXME: There seems to be a bug in set completion msg where its |
| 426 | * MessageLength is 16 bytes but the ByteCount field in the xfer page |
| 427 | * range shows 52 bytes |
| 428 | * */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 429 | #if 0 |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 430 | if (Packet->TotalDataBufferLength != rndisHeader->MessageLength) { |
| 431 | kunmap_atomic(rndisHeader - Packet->PageBuffers[0].Offset, |
| 432 | KM_IRQ0); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 433 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 434 | DPRINT_ERR(NETVSC, "invalid rndis message? (expected %u " |
| 435 | "bytes got %u)...dropping this message!", |
| 436 | rndisHeader->MessageLength, |
| 437 | Packet->TotalDataBufferLength); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 438 | DPRINT_EXIT(NETVSC); |
| 439 | return -1; |
| 440 | } |
| 441 | #endif |
| 442 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 443 | if ((rndisHeader->NdisMessageType != REMOTE_NDIS_PACKET_MSG) && |
| 444 | (rndisHeader->MessageLength > sizeof(struct rndis_message))) { |
| 445 | DPRINT_ERR(NETVSC, "incoming rndis message buffer overflow " |
| 446 | "detected (got %u, max %zu)...marking it an error!", |
| 447 | rndisHeader->MessageLength, |
| 448 | sizeof(struct rndis_message)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 449 | } |
| 450 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 451 | memcpy(&rndisMessage, rndisHeader, |
| 452 | (rndisHeader->MessageLength > sizeof(struct rndis_message)) ? |
| 453 | sizeof(struct rndis_message) : |
| 454 | rndisHeader->MessageLength); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 455 | |
Bill Pemberton | 45da89e | 2009-07-29 17:00:15 -0400 | [diff] [blame] | 456 | kunmap_atomic(rndisHeader - Packet->PageBuffers[0].Offset, KM_IRQ0); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 457 | |
| 458 | DumpRndisMessage(&rndisMessage); |
| 459 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 460 | switch (rndisMessage.NdisMessageType) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 461 | case REMOTE_NDIS_PACKET_MSG: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 462 | /* data msg */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 463 | RndisFilterReceiveData(rndisDevice, &rndisMessage, Packet); |
| 464 | break; |
| 465 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 466 | case REMOTE_NDIS_INITIALIZE_CMPLT: |
| 467 | case REMOTE_NDIS_QUERY_CMPLT: |
| 468 | case REMOTE_NDIS_SET_CMPLT: |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 469 | /* case REMOTE_NDIS_RESET_CMPLT: */ |
| 470 | /* case REMOTE_NDIS_KEEPALIVE_CMPLT: */ |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 471 | /* completion msgs */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 472 | RndisFilterReceiveResponse(rndisDevice, &rndisMessage); |
| 473 | break; |
| 474 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 475 | case REMOTE_NDIS_INDICATE_STATUS_MSG: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 476 | /* notification msgs */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 477 | RndisFilterReceiveIndicateStatus(rndisDevice, &rndisMessage); |
| 478 | break; |
| 479 | default: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 480 | DPRINT_ERR(NETVSC, "unhandled rndis message (type %u len %u)", |
| 481 | rndisMessage.NdisMessageType, |
| 482 | rndisMessage.MessageLength); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 483 | break; |
| 484 | } |
| 485 | |
| 486 | DPRINT_EXIT(NETVSC); |
| 487 | return 0; |
| 488 | } |
| 489 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 490 | static int RndisFilterQueryDevice(struct rndis_device *Device, u32 Oid, |
| 491 | void *Result, u32 *ResultSize) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 492 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 493 | struct rndis_request *request; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 494 | u32 inresultSize = *ResultSize; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 495 | struct rndis_query_request *query; |
| 496 | struct rndis_query_complete *queryComplete; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 497 | int ret = 0; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 498 | |
| 499 | DPRINT_ENTER(NETVSC); |
| 500 | |
| 501 | ASSERT(Result); |
| 502 | |
| 503 | *ResultSize = 0; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 504 | request = GetRndisRequest(Device, REMOTE_NDIS_QUERY_MSG, |
| 505 | RNDIS_MESSAGE_SIZE(struct rndis_query_request)); |
| 506 | if (!request) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 507 | ret = -1; |
| 508 | goto Cleanup; |
| 509 | } |
| 510 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 511 | /* Setup the rndis query */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 512 | query = &request->RequestMessage.Message.QueryRequest; |
| 513 | query->Oid = Oid; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 514 | query->InformationBufferOffset = sizeof(struct rndis_query_request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 515 | query->InformationBufferLength = 0; |
| 516 | query->DeviceVcHandle = 0; |
| 517 | |
| 518 | ret = RndisFilterSendRequest(Device, request); |
| 519 | if (ret != 0) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 520 | goto Cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 521 | |
Greg Kroah-Hartman | bfc30aa | 2009-07-29 15:40:18 -0700 | [diff] [blame] | 522 | osd_WaitEventWait(request->WaitEvent); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 523 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 524 | /* Copy the response back */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 525 | queryComplete = &request->ResponseMessage.Message.QueryComplete; |
| 526 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 527 | if (queryComplete->InformationBufferLength > inresultSize) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 528 | ret = -1; |
| 529 | goto Cleanup; |
| 530 | } |
| 531 | |
| 532 | memcpy(Result, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 533 | (void *)((unsigned long)queryComplete + |
| 534 | queryComplete->InformationBufferOffset), |
| 535 | queryComplete->InformationBufferLength); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 536 | |
| 537 | *ResultSize = queryComplete->InformationBufferLength; |
| 538 | |
| 539 | Cleanup: |
| 540 | if (request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 541 | PutRndisRequest(Device, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 542 | DPRINT_EXIT(NETVSC); |
| 543 | |
| 544 | return ret; |
| 545 | } |
| 546 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 547 | static int RndisFilterQueryDeviceMac(struct rndis_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 548 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 549 | u32 size = HW_MACADDR_LEN; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 550 | |
| 551 | return RndisFilterQueryDevice(Device, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 552 | RNDIS_OID_802_3_PERMANENT_ADDRESS, |
| 553 | Device->HwMacAddr, &size); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 554 | } |
| 555 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 556 | static int RndisFilterQueryDeviceLinkStatus(struct rndis_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 557 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 558 | u32 size = sizeof(u32); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 559 | |
| 560 | return RndisFilterQueryDevice(Device, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 561 | RNDIS_OID_GEN_MEDIA_CONNECT_STATUS, |
| 562 | &Device->LinkStatus, &size); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 563 | } |
| 564 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 565 | static int RndisFilterSetPacketFilter(struct rndis_device *Device, |
| 566 | u32 NewFilter) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 567 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 568 | struct rndis_request *request; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 569 | struct rndis_set_request *set; |
| 570 | struct rndis_set_complete *setComplete; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 571 | u32 status; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 572 | int ret; |
| 573 | |
| 574 | DPRINT_ENTER(NETVSC); |
| 575 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 576 | ASSERT(RNDIS_MESSAGE_SIZE(struct rndis_set_request) + sizeof(u32) <= |
| 577 | sizeof(struct rndis_message)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 578 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 579 | request = GetRndisRequest(Device, REMOTE_NDIS_SET_MSG, |
| 580 | RNDIS_MESSAGE_SIZE(struct rndis_set_request) + |
| 581 | sizeof(u32)); |
| 582 | if (!request) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 583 | ret = -1; |
| 584 | goto Cleanup; |
| 585 | } |
| 586 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 587 | /* Setup the rndis set */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 588 | set = &request->RequestMessage.Message.SetRequest; |
| 589 | set->Oid = RNDIS_OID_GEN_CURRENT_PACKET_FILTER; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 590 | set->InformationBufferLength = sizeof(u32); |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 591 | set->InformationBufferOffset = sizeof(struct rndis_set_request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 592 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 593 | memcpy((void *)(unsigned long)set + sizeof(struct rndis_set_request), |
| 594 | &NewFilter, sizeof(u32)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 595 | |
| 596 | ret = RndisFilterSendRequest(Device, request); |
| 597 | if (ret != 0) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 598 | goto Cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 599 | |
Greg Kroah-Hartman | bfc30aa | 2009-07-29 15:40:18 -0700 | [diff] [blame] | 600 | ret = osd_WaitEventWaitEx(request->WaitEvent, 2000/*2sec*/); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 601 | if (!ret) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 602 | ret = -1; |
| 603 | DPRINT_ERR(NETVSC, "timeout before we got a set response..."); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 604 | /* |
| 605 | * We cant deallocate the request since we may still receive a |
| 606 | * send completion for it. |
| 607 | */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 608 | goto Exit; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 609 | } else { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 610 | if (ret > 0) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 611 | ret = 0; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 612 | setComplete = &request->ResponseMessage.Message.SetComplete; |
| 613 | status = setComplete->Status; |
| 614 | } |
| 615 | |
| 616 | Cleanup: |
| 617 | if (request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 618 | PutRndisRequest(Device, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 619 | Exit: |
| 620 | DPRINT_EXIT(NETVSC); |
| 621 | |
| 622 | return ret; |
| 623 | } |
| 624 | |
Greg Kroah-Hartman | 7e23a6e | 2009-08-27 15:58:15 -0700 | [diff] [blame] | 625 | int RndisFilterInit(struct netvsc_driver *Driver) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 626 | { |
| 627 | DPRINT_ENTER(NETVSC); |
| 628 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 629 | DPRINT_DBG(NETVSC, "sizeof(struct rndis_filter_packet) == %zd", |
| 630 | sizeof(struct rndis_filter_packet)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 631 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 632 | Driver->RequestExtSize = sizeof(struct rndis_filter_packet); |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 633 | Driver->AdditionalRequestPageBufferCount = 1; /* For rndis header */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 634 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 635 | /* Driver->Context = rndisDriver; */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 636 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 637 | memset(&gRndisFilter, 0, sizeof(struct rndis_filter_driver_object)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 638 | |
| 639 | /*rndisDriver->Driver = Driver; |
| 640 | |
| 641 | ASSERT(Driver->OnLinkStatusChanged); |
| 642 | rndisDriver->OnLinkStatusChanged = Driver->OnLinkStatusChanged;*/ |
| 643 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 644 | /* Save the original dispatch handlers before we override it */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 645 | gRndisFilter.InnerDriver.Base.OnDeviceAdd = Driver->Base.OnDeviceAdd; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 646 | gRndisFilter.InnerDriver.Base.OnDeviceRemove = |
| 647 | Driver->Base.OnDeviceRemove; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 648 | gRndisFilter.InnerDriver.Base.OnCleanup = Driver->Base.OnCleanup; |
| 649 | |
| 650 | ASSERT(Driver->OnSend); |
| 651 | ASSERT(Driver->OnReceiveCallback); |
| 652 | gRndisFilter.InnerDriver.OnSend = Driver->OnSend; |
| 653 | gRndisFilter.InnerDriver.OnReceiveCallback = Driver->OnReceiveCallback; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 654 | gRndisFilter.InnerDriver.OnLinkStatusChanged = |
| 655 | Driver->OnLinkStatusChanged; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 656 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 657 | /* Override */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 658 | Driver->Base.OnDeviceAdd = RndisFilterOnDeviceAdd; |
| 659 | Driver->Base.OnDeviceRemove = RndisFilterOnDeviceRemove; |
| 660 | Driver->Base.OnCleanup = RndisFilterOnCleanup; |
| 661 | Driver->OnSend = RndisFilterOnSend; |
| 662 | Driver->OnOpen = RndisFilterOnOpen; |
| 663 | Driver->OnClose = RndisFilterOnClose; |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 664 | /* Driver->QueryLinkStatus = RndisFilterQueryDeviceLinkStatus; */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 665 | Driver->OnReceiveCallback = RndisFilterOnReceive; |
| 666 | |
| 667 | DPRINT_EXIT(NETVSC); |
| 668 | |
| 669 | return 0; |
| 670 | } |
| 671 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 672 | static int RndisFilterInitDevice(struct rndis_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 673 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 674 | struct rndis_request *request; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 675 | struct rndis_initialize_request *init; |
| 676 | struct rndis_initialize_complete *initComplete; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 677 | u32 status; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 678 | int ret; |
| 679 | |
| 680 | DPRINT_ENTER(NETVSC); |
| 681 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 682 | request = GetRndisRequest(Device, REMOTE_NDIS_INITIALIZE_MSG, |
| 683 | RNDIS_MESSAGE_SIZE(struct rndis_initialize_request)); |
| 684 | if (!request) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 685 | ret = -1; |
| 686 | goto Cleanup; |
| 687 | } |
| 688 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 689 | /* Setup the rndis set */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 690 | init = &request->RequestMessage.Message.InitializeRequest; |
| 691 | init->MajorVersion = RNDIS_MAJOR_VERSION; |
| 692 | init->MinorVersion = RNDIS_MINOR_VERSION; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 693 | /* FIXME: Use 1536 - rounded ethernet frame size */ |
| 694 | init->MaxTransferSize = 2048; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 695 | |
| 696 | Device->State = RNDIS_DEV_INITIALIZING; |
| 697 | |
| 698 | ret = RndisFilterSendRequest(Device, request); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 699 | if (ret != 0) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 700 | Device->State = RNDIS_DEV_UNINITIALIZED; |
| 701 | goto Cleanup; |
| 702 | } |
| 703 | |
Greg Kroah-Hartman | bfc30aa | 2009-07-29 15:40:18 -0700 | [diff] [blame] | 704 | osd_WaitEventWait(request->WaitEvent); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 705 | |
| 706 | initComplete = &request->ResponseMessage.Message.InitializeComplete; |
| 707 | status = initComplete->Status; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 708 | if (status == RNDIS_STATUS_SUCCESS) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 709 | Device->State = RNDIS_DEV_INITIALIZED; |
| 710 | ret = 0; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 711 | } else { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 712 | Device->State = RNDIS_DEV_UNINITIALIZED; |
| 713 | ret = -1; |
| 714 | } |
| 715 | |
| 716 | Cleanup: |
| 717 | if (request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 718 | PutRndisRequest(Device, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 719 | DPRINT_EXIT(NETVSC); |
| 720 | |
| 721 | return ret; |
| 722 | } |
| 723 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 724 | static void RndisFilterHaltDevice(struct rndis_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 725 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 726 | struct rndis_request *request; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 727 | struct rndis_halt_request *halt; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 728 | |
| 729 | DPRINT_ENTER(NETVSC); |
| 730 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 731 | /* Attempt to do a rndis device halt */ |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 732 | request = GetRndisRequest(Device, REMOTE_NDIS_HALT_MSG, |
| 733 | RNDIS_MESSAGE_SIZE(struct rndis_halt_request)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 734 | if (!request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 735 | goto Cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 736 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 737 | /* Setup the rndis set */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 738 | halt = &request->RequestMessage.Message.HaltRequest; |
Bill Pemberton | f488841 | 2009-07-29 17:00:12 -0400 | [diff] [blame] | 739 | halt->RequestId = atomic_inc_return(&Device->NewRequestId); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 740 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 741 | /* Ignore return since this msg is optional. */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 742 | RndisFilterSendRequest(Device, request); |
| 743 | |
| 744 | Device->State = RNDIS_DEV_UNINITIALIZED; |
| 745 | |
| 746 | Cleanup: |
| 747 | if (request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 748 | PutRndisRequest(Device, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 749 | DPRINT_EXIT(NETVSC); |
| 750 | return; |
| 751 | } |
| 752 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 753 | static int RndisFilterOpenDevice(struct rndis_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 754 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 755 | int ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 756 | |
| 757 | DPRINT_ENTER(NETVSC); |
| 758 | |
| 759 | if (Device->State != RNDIS_DEV_INITIALIZED) |
| 760 | return 0; |
| 761 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 762 | ret = RndisFilterSetPacketFilter(Device, |
| 763 | NDIS_PACKET_TYPE_BROADCAST | |
| 764 | NDIS_PACKET_TYPE_DIRECTED); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 765 | if (ret == 0) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 766 | Device->State = RNDIS_DEV_DATAINITIALIZED; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 767 | |
| 768 | DPRINT_EXIT(NETVSC); |
| 769 | return ret; |
| 770 | } |
| 771 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 772 | static int RndisFilterCloseDevice(struct rndis_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 773 | { |
| 774 | int ret; |
| 775 | |
| 776 | DPRINT_ENTER(NETVSC); |
| 777 | |
| 778 | if (Device->State != RNDIS_DEV_DATAINITIALIZED) |
| 779 | return 0; |
| 780 | |
| 781 | ret = RndisFilterSetPacketFilter(Device, 0); |
| 782 | if (ret == 0) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 783 | Device->State = RNDIS_DEV_INITIALIZED; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 784 | |
| 785 | DPRINT_EXIT(NETVSC); |
| 786 | |
| 787 | return ret; |
| 788 | } |
| 789 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 790 | static int RndisFilterOnDeviceAdd(struct hv_device *Device, |
| 791 | void *AdditionalInfo) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 792 | { |
| 793 | int ret; |
Bill Pemberton | d1af1db7 | 2009-07-27 16:47:44 -0400 | [diff] [blame] | 794 | struct NETVSC_DEVICE *netDevice; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 795 | struct rndis_device *rndisDevice; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 796 | struct netvsc_device_info *deviceInfo = AdditionalInfo; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 797 | |
| 798 | DPRINT_ENTER(NETVSC); |
| 799 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 800 | rndisDevice = GetRndisDevice(); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 801 | if (!rndisDevice) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 802 | DPRINT_EXIT(NETVSC); |
| 803 | return -1; |
| 804 | } |
| 805 | |
| 806 | DPRINT_DBG(NETVSC, "rndis device object allocated - %p", rndisDevice); |
| 807 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 808 | /* |
| 809 | * Let the inner driver handle this first to create the netvsc channel |
| 810 | * NOTE! Once the channel is created, we may get a receive callback |
| 811 | * (RndisFilterOnReceive()) before this call is completed |
| 812 | */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 813 | ret = gRndisFilter.InnerDriver.Base.OnDeviceAdd(Device, AdditionalInfo); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 814 | if (ret != 0) { |
| 815 | kfree(rndisDevice); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 816 | DPRINT_EXIT(NETVSC); |
| 817 | return ret; |
| 818 | } |
| 819 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 820 | |
| 821 | /* Initialize the rndis device */ |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 822 | netDevice = Device->Extension; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 823 | ASSERT(netDevice); |
| 824 | ASSERT(netDevice->Device); |
| 825 | |
| 826 | netDevice->Extension = rndisDevice; |
| 827 | rndisDevice->NetDevice = netDevice; |
| 828 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 829 | /* Send the rndis initialization message */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 830 | ret = RndisFilterInitDevice(rndisDevice); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 831 | if (ret != 0) { |
| 832 | /* |
| 833 | * TODO: If rndis init failed, we will need to shut down the |
| 834 | * channel |
| 835 | */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 836 | } |
| 837 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 838 | /* Get the mac address */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 839 | ret = RndisFilterQueryDeviceMac(rndisDevice); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 840 | if (ret != 0) { |
| 841 | /* |
| 842 | * TODO: shutdown rndis device and the channel |
| 843 | */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 844 | } |
| 845 | |
| 846 | DPRINT_INFO(NETVSC, "Device 0x%p mac addr %02x%02x%02x%02x%02x%02x", |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 847 | rndisDevice, |
| 848 | rndisDevice->HwMacAddr[0], |
| 849 | rndisDevice->HwMacAddr[1], |
| 850 | rndisDevice->HwMacAddr[2], |
| 851 | rndisDevice->HwMacAddr[3], |
| 852 | rndisDevice->HwMacAddr[4], |
| 853 | rndisDevice->HwMacAddr[5]); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 854 | |
| 855 | memcpy(deviceInfo->MacAddr, rndisDevice->HwMacAddr, HW_MACADDR_LEN); |
| 856 | |
| 857 | RndisFilterQueryDeviceLinkStatus(rndisDevice); |
| 858 | |
| 859 | deviceInfo->LinkState = rndisDevice->LinkStatus; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 860 | DPRINT_INFO(NETVSC, "Device 0x%p link state %s", rndisDevice, |
| 861 | ((deviceInfo->LinkState) ? ("down") : ("up"))); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 862 | |
| 863 | DPRINT_EXIT(NETVSC); |
| 864 | |
| 865 | return ret; |
| 866 | } |
| 867 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 868 | static int RndisFilterOnDeviceRemove(struct hv_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 869 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 870 | struct NETVSC_DEVICE *netDevice = Device->Extension; |
| 871 | struct rndis_device *rndisDevice = netDevice->Extension; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 872 | |
| 873 | DPRINT_ENTER(NETVSC); |
| 874 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 875 | /* Halt and release the rndis device */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 876 | RndisFilterHaltDevice(rndisDevice); |
| 877 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 878 | kfree(rndisDevice); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 879 | netDevice->Extension = NULL; |
| 880 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 881 | /* Pass control to inner driver to remove the device */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 882 | gRndisFilter.InnerDriver.Base.OnDeviceRemove(Device); |
| 883 | |
| 884 | DPRINT_EXIT(NETVSC); |
| 885 | |
| 886 | return 0; |
| 887 | } |
| 888 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 889 | static void RndisFilterOnCleanup(struct hv_driver *Driver) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 890 | { |
| 891 | DPRINT_ENTER(NETVSC); |
| 892 | |
| 893 | DPRINT_EXIT(NETVSC); |
| 894 | } |
| 895 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 896 | static int RndisFilterOnOpen(struct hv_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 897 | { |
| 898 | int ret; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 899 | struct NETVSC_DEVICE *netDevice = Device->Extension; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 900 | |
| 901 | DPRINT_ENTER(NETVSC); |
| 902 | |
| 903 | ASSERT(netDevice); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 904 | ret = RndisFilterOpenDevice(netDevice->Extension); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 905 | |
| 906 | DPRINT_EXIT(NETVSC); |
| 907 | |
| 908 | return ret; |
| 909 | } |
| 910 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 911 | static int RndisFilterOnClose(struct hv_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 912 | { |
| 913 | int ret; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 914 | struct NETVSC_DEVICE *netDevice = Device->Extension; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 915 | |
| 916 | DPRINT_ENTER(NETVSC); |
| 917 | |
| 918 | ASSERT(netDevice); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 919 | ret = RndisFilterCloseDevice(netDevice->Extension); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 920 | |
| 921 | DPRINT_EXIT(NETVSC); |
| 922 | |
| 923 | return ret; |
| 924 | } |
| 925 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 926 | static int RndisFilterOnSend(struct hv_device *Device, |
| 927 | struct hv_netvsc_packet *Packet) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 928 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 929 | int ret; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 930 | struct rndis_filter_packet *filterPacket; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 931 | struct rndis_message *rndisMessage; |
| 932 | struct rndis_packet *rndisPacket; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 933 | u32 rndisMessageSize; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 934 | |
| 935 | DPRINT_ENTER(NETVSC); |
| 936 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 937 | /* Add the rndis header */ |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 938 | filterPacket = (struct rndis_filter_packet *)Packet->Extension; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 939 | ASSERT(filterPacket); |
| 940 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 941 | memset(filterPacket, 0, sizeof(struct rndis_filter_packet)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 942 | |
| 943 | rndisMessage = &filterPacket->Message; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 944 | rndisMessageSize = RNDIS_MESSAGE_SIZE(struct rndis_packet); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 945 | |
| 946 | rndisMessage->NdisMessageType = REMOTE_NDIS_PACKET_MSG; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 947 | rndisMessage->MessageLength = Packet->TotalDataBufferLength + |
| 948 | rndisMessageSize; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 949 | |
| 950 | rndisPacket = &rndisMessage->Message.Packet; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 951 | rndisPacket->DataOffset = sizeof(struct rndis_packet); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 952 | rndisPacket->DataLength = Packet->TotalDataBufferLength; |
| 953 | |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 954 | Packet->IsDataPacket = true; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 955 | Packet->PageBuffers[0].Pfn = virt_to_phys(rndisMessage) >> PAGE_SHIFT; |
| 956 | Packet->PageBuffers[0].Offset = |
| 957 | (unsigned long)rndisMessage & (PAGE_SIZE-1); |
| 958 | Packet->PageBuffers[0].Length = rndisMessageSize; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 959 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 960 | /* Save the packet send completion and context */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 961 | filterPacket->OnCompletion = Packet->Completion.Send.OnSendCompletion; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 962 | filterPacket->CompletionContext = |
| 963 | Packet->Completion.Send.SendCompletionContext; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 964 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 965 | /* Use ours */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 966 | Packet->Completion.Send.OnSendCompletion = RndisFilterOnSendCompletion; |
| 967 | Packet->Completion.Send.SendCompletionContext = filterPacket; |
| 968 | |
| 969 | ret = gRndisFilter.InnerDriver.OnSend(Device, Packet); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 970 | if (ret != 0) { |
| 971 | /* |
| 972 | * Reset the completion to originals to allow retries from |
| 973 | * above |
| 974 | */ |
| 975 | Packet->Completion.Send.OnSendCompletion = |
| 976 | filterPacket->OnCompletion; |
| 977 | Packet->Completion.Send.SendCompletionContext = |
| 978 | filterPacket->CompletionContext; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 979 | } |
| 980 | |
| 981 | DPRINT_EXIT(NETVSC); |
| 982 | |
| 983 | return ret; |
| 984 | } |
| 985 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 986 | static void RndisFilterOnSendCompletion(void *Context) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 987 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 988 | struct rndis_filter_packet *filterPacket = Context; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 989 | |
| 990 | DPRINT_ENTER(NETVSC); |
| 991 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 992 | /* Pass it back to the original handler */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 993 | filterPacket->OnCompletion(filterPacket->CompletionContext); |
| 994 | |
| 995 | DPRINT_EXIT(NETVSC); |
| 996 | } |
| 997 | |
| 998 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 999 | static void RndisFilterOnSendRequestCompletion(void *Context) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1000 | { |
| 1001 | DPRINT_ENTER(NETVSC); |
| 1002 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 1003 | /* Noop */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1004 | DPRINT_EXIT(NETVSC); |
| 1005 | } |