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> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 23 | #include <linux/slab.h> |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 24 | #include <linux/io.h> |
Stephen Hemminger | 9f8bd8b | 2010-05-04 09:58:54 -0700 | [diff] [blame] | 25 | #include <linux/if_ether.h> |
| 26 | |
Greg Kroah-Hartman | 4983b39 | 2009-08-19 16:14:47 -0700 | [diff] [blame] | 27 | #include "osd.h" |
Greg Kroah-Hartman | 645954c | 2009-08-28 16:22:59 -0700 | [diff] [blame] | 28 | #include "logging.h" |
Greg Kroah-Hartman | a82c7a2 | 2010-05-05 22:39:15 -0700 | [diff] [blame] | 29 | #include "netvsc_api.h" |
Greg Kroah-Hartman | 043efcc | 2010-05-05 22:32:08 -0700 | [diff] [blame] | 30 | #include "rndis_filter.h" |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 31 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 32 | /* Data types */ |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 33 | struct rndis_filter_driver_object { |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 34 | /* The original driver */ |
Greg Kroah-Hartman | 7e23a6e | 2009-08-27 15:58:15 -0700 | [diff] [blame] | 35 | struct netvsc_driver InnerDriver; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 36 | }; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 37 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 38 | enum rndis_device_state { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 39 | RNDIS_DEV_UNINITIALIZED = 0, |
| 40 | RNDIS_DEV_INITIALIZING, |
| 41 | RNDIS_DEV_INITIALIZED, |
| 42 | RNDIS_DEV_DATAINITIALIZED, |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 43 | }; |
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 | struct rndis_device { |
Greg Kroah-Hartman | ce9ea4c | 2009-09-02 10:35:56 -0700 | [diff] [blame] | 46 | struct netvsc_device *NetDevice; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 47 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 48 | enum rndis_device_state State; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 49 | u32 LinkStatus; |
Bill Pemberton | f488841 | 2009-07-29 17:00:12 -0400 | [diff] [blame] | 50 | atomic_t NewRequestId; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 51 | |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 52 | spinlock_t request_lock; |
Bill Pemberton | 1f5459b | 2009-09-11 21:46:45 -0400 | [diff] [blame] | 53 | struct list_head RequestList; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 54 | |
Stephen Hemminger | 9f8bd8b | 2010-05-04 09:58:54 -0700 | [diff] [blame] | 55 | unsigned char HwMacAddr[ETH_ALEN]; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 56 | }; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 57 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 58 | struct rndis_request { |
Bill Pemberton | 1f5459b | 2009-09-11 21:46:45 -0400 | [diff] [blame] | 59 | struct list_head ListEntry; |
Bill Pemberton | aedb444 | 2009-07-28 13:46:24 -0400 | [diff] [blame] | 60 | struct osd_waitevent *WaitEvent; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 61 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 62 | /* |
| 63 | * FIXME: We assumed a fixed size response here. If we do ever need to |
| 64 | * handle a bigger response, we can either define a max response |
| 65 | * message or add a response buffer variable above this field |
| 66 | */ |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 67 | struct rndis_message ResponseMessage; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 68 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 69 | /* Simplify allocation by having a netvsc packet inline */ |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 70 | struct hv_netvsc_packet Packet; |
Greg Kroah-Hartman | ee3d7dd | 2009-08-20 12:17:36 -0700 | [diff] [blame] | 71 | struct hv_page_buffer Buffer; |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 72 | /* FIXME: We assumed a fixed size request here. */ |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 73 | struct rndis_message RequestMessage; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 74 | }; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 75 | |
| 76 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 77 | struct rndis_filter_packet { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 78 | void *CompletionContext; |
Greg Kroah-Hartman | 211ccd6 | 2009-09-02 11:24:48 -0700 | [diff] [blame] | 79 | void (*OnCompletion)(void *context); |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 80 | struct rndis_message Message; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 81 | }; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 82 | |
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 RndisFilterOnDeviceAdd(struct hv_device *Device, |
| 85 | void *AdditionalInfo); |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 86 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 87 | static int RndisFilterOnDeviceRemove(struct hv_device *Device); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 88 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 89 | static void RndisFilterOnCleanup(struct hv_driver *Driver); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 90 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 91 | static int RndisFilterOnSend(struct hv_device *Device, |
| 92 | struct hv_netvsc_packet *Packet); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 93 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 94 | static void RndisFilterOnSendCompletion(void *Context); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 95 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 96 | static void RndisFilterOnSendRequestCompletion(void *Context); |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 97 | |
| 98 | |
| 99 | /* The one and only */ |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 100 | static struct rndis_filter_driver_object gRndisFilter; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 101 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 102 | static struct rndis_device *GetRndisDevice(void) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 103 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 104 | struct rndis_device *device; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 105 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 106 | device = kzalloc(sizeof(struct rndis_device), GFP_KERNEL); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 107 | if (!device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 108 | return NULL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 109 | |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 110 | spin_lock_init(&device->request_lock); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 111 | |
Bill Pemberton | 1f5459b | 2009-09-11 21:46:45 -0400 | [diff] [blame] | 112 | INIT_LIST_HEAD(&device->RequestList); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 113 | |
| 114 | device->State = RNDIS_DEV_UNINITIALIZED; |
| 115 | |
| 116 | return device; |
| 117 | } |
| 118 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 119 | static struct rndis_request *GetRndisRequest(struct rndis_device *Device, |
| 120 | u32 MessageType, |
| 121 | u32 MessageLength) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 122 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 123 | struct rndis_request *request; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 124 | struct rndis_message *rndisMessage; |
| 125 | struct rndis_set_request *set; |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 126 | unsigned long flags; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 127 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 128 | request = kzalloc(sizeof(struct rndis_request), GFP_KERNEL); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 129 | if (!request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 130 | return NULL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 131 | |
Greg Kroah-Hartman | bfc30aa | 2009-07-29 15:40:18 -0700 | [diff] [blame] | 132 | request->WaitEvent = osd_WaitEventCreate(); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 133 | if (!request->WaitEvent) { |
Greg Kroah-Hartman | 8c69f52 | 2009-07-15 12:48:29 -0700 | [diff] [blame] | 134 | kfree(request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 135 | return NULL; |
| 136 | } |
| 137 | |
| 138 | rndisMessage = &request->RequestMessage; |
| 139 | rndisMessage->NdisMessageType = MessageType; |
| 140 | rndisMessage->MessageLength = MessageLength; |
| 141 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 142 | /* |
| 143 | * Set the request id. This field is always after the rndis header for |
| 144 | * request/response packet types so we just used the SetRequest as a |
| 145 | * template |
| 146 | */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 147 | set = &rndisMessage->Message.SetRequest; |
Bill Pemberton | f488841 | 2009-07-29 17:00:12 -0400 | [diff] [blame] | 148 | set->RequestId = atomic_inc_return(&Device->NewRequestId); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 149 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 150 | /* Add to the request list */ |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 151 | spin_lock_irqsave(&Device->request_lock, flags); |
Bill Pemberton | 1f5459b | 2009-09-11 21:46:45 -0400 | [diff] [blame] | 152 | list_add_tail(&request->ListEntry, &Device->RequestList); |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 153 | spin_unlock_irqrestore(&Device->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 154 | |
| 155 | return request; |
| 156 | } |
| 157 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 158 | static void PutRndisRequest(struct rndis_device *Device, |
| 159 | struct rndis_request *Request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 160 | { |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 161 | unsigned long flags; |
| 162 | |
| 163 | spin_lock_irqsave(&Device->request_lock, flags); |
Bill Pemberton | 1f5459b | 2009-09-11 21:46:45 -0400 | [diff] [blame] | 164 | list_del(&Request->ListEntry); |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 165 | spin_unlock_irqrestore(&Device->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 166 | |
Bill Pemberton | 420beac | 2009-07-29 17:00:10 -0400 | [diff] [blame] | 167 | kfree(Request->WaitEvent); |
Greg Kroah-Hartman | 8c69f52 | 2009-07-15 12:48:29 -0700 | [diff] [blame] | 168 | kfree(Request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 169 | } |
| 170 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 171 | static void DumpRndisMessage(struct rndis_message *RndisMessage) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 172 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 173 | switch (RndisMessage->NdisMessageType) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 174 | case REMOTE_NDIS_PACKET_MSG: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 175 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_PACKET_MSG (len %u, " |
| 176 | "data offset %u data len %u, # oob %u, " |
| 177 | "oob offset %u, oob len %u, pkt offset %u, " |
| 178 | "pkt len %u", |
| 179 | RndisMessage->MessageLength, |
| 180 | RndisMessage->Message.Packet.DataOffset, |
| 181 | RndisMessage->Message.Packet.DataLength, |
| 182 | RndisMessage->Message.Packet.NumOOBDataElements, |
| 183 | RndisMessage->Message.Packet.OOBDataOffset, |
| 184 | RndisMessage->Message.Packet.OOBDataLength, |
| 185 | RndisMessage->Message.Packet.PerPacketInfoOffset, |
| 186 | RndisMessage->Message.Packet.PerPacketInfoLength); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 187 | break; |
| 188 | |
| 189 | case REMOTE_NDIS_INITIALIZE_CMPLT: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 190 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_INITIALIZE_CMPLT " |
| 191 | "(len %u, id 0x%x, status 0x%x, major %d, minor %d, " |
| 192 | "device flags %d, max xfer size 0x%x, max pkts %u, " |
| 193 | "pkt aligned %u)", |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 194 | RndisMessage->MessageLength, |
| 195 | RndisMessage->Message.InitializeComplete.RequestId, |
| 196 | RndisMessage->Message.InitializeComplete.Status, |
| 197 | RndisMessage->Message.InitializeComplete.MajorVersion, |
| 198 | RndisMessage->Message.InitializeComplete.MinorVersion, |
| 199 | RndisMessage->Message.InitializeComplete.DeviceFlags, |
| 200 | RndisMessage->Message.InitializeComplete.MaxTransferSize, |
| 201 | RndisMessage->Message.InitializeComplete.MaxPacketsPerMessage, |
| 202 | RndisMessage->Message.InitializeComplete.PacketAlignmentFactor); |
| 203 | break; |
| 204 | |
| 205 | case REMOTE_NDIS_QUERY_CMPLT: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 206 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_QUERY_CMPLT " |
| 207 | "(len %u, id 0x%x, status 0x%x, buf len %u, " |
| 208 | "buf offset %u)", |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 209 | RndisMessage->MessageLength, |
| 210 | RndisMessage->Message.QueryComplete.RequestId, |
| 211 | RndisMessage->Message.QueryComplete.Status, |
| 212 | RndisMessage->Message.QueryComplete.InformationBufferLength, |
| 213 | RndisMessage->Message.QueryComplete.InformationBufferOffset); |
| 214 | break; |
| 215 | |
| 216 | case REMOTE_NDIS_SET_CMPLT: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 217 | DPRINT_DBG(NETVSC, |
| 218 | "REMOTE_NDIS_SET_CMPLT (len %u, id 0x%x, status 0x%x)", |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 219 | RndisMessage->MessageLength, |
| 220 | RndisMessage->Message.SetComplete.RequestId, |
| 221 | RndisMessage->Message.SetComplete.Status); |
| 222 | break; |
| 223 | |
| 224 | case REMOTE_NDIS_INDICATE_STATUS_MSG: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 225 | DPRINT_DBG(NETVSC, "REMOTE_NDIS_INDICATE_STATUS_MSG " |
| 226 | "(len %u, status 0x%x, buf len %u, buf offset %u)", |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 227 | RndisMessage->MessageLength, |
| 228 | RndisMessage->Message.IndicateStatus.Status, |
| 229 | RndisMessage->Message.IndicateStatus.StatusBufferLength, |
| 230 | RndisMessage->Message.IndicateStatus.StatusBufferOffset); |
| 231 | break; |
| 232 | |
| 233 | default: |
| 234 | DPRINT_DBG(NETVSC, "0x%x (len %u)", |
| 235 | RndisMessage->NdisMessageType, |
| 236 | RndisMessage->MessageLength); |
| 237 | break; |
| 238 | } |
| 239 | } |
| 240 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 241 | static int RndisFilterSendRequest(struct rndis_device *Device, |
| 242 | struct rndis_request *Request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 243 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 244 | int ret; |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 245 | struct hv_netvsc_packet *packet; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 246 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 247 | /* Setup the packet to send it */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 248 | packet = &Request->Packet; |
| 249 | |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 250 | packet->IsDataPacket = false; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 251 | packet->TotalDataBufferLength = Request->RequestMessage.MessageLength; |
| 252 | packet->PageBufferCount = 1; |
| 253 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 254 | packet->PageBuffers[0].Pfn = virt_to_phys(&Request->RequestMessage) >> |
| 255 | PAGE_SHIFT; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 256 | packet->PageBuffers[0].Length = Request->RequestMessage.MessageLength; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 257 | packet->PageBuffers[0].Offset = |
| 258 | (unsigned long)&Request->RequestMessage & (PAGE_SIZE - 1); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 259 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 260 | packet->Completion.Send.SendCompletionContext = Request;/* packet; */ |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 261 | packet->Completion.Send.OnSendCompletion = |
| 262 | RndisFilterOnSendRequestCompletion; |
Greg Kroah-Hartman | c4b0bc9 | 2009-07-14 15:12:46 -0700 | [diff] [blame] | 263 | packet->Completion.Send.SendCompletionTid = (unsigned long)Device; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 264 | |
| 265 | ret = gRndisFilter.InnerDriver.OnSend(Device->NetDevice->Device, packet); |
| 266 | DPRINT_EXIT(NETVSC); |
| 267 | return ret; |
| 268 | } |
| 269 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 270 | static void RndisFilterReceiveResponse(struct rndis_device *Device, |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 271 | struct rndis_message *Response) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 272 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 273 | struct rndis_request *request = NULL; |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 274 | bool found = false; |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 275 | unsigned long flags; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 276 | |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 277 | spin_lock_irqsave(&Device->request_lock, flags); |
Bill Pemberton | 1f5459b | 2009-09-11 21:46:45 -0400 | [diff] [blame] | 278 | list_for_each_entry(request, &Device->RequestList, ListEntry) { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 279 | /* |
| 280 | * All request/response message contains RequestId as the 1st |
| 281 | * field |
| 282 | */ |
| 283 | if (request->RequestMessage.Message.InitializeRequest.RequestId |
| 284 | == Response->Message.InitializeComplete.RequestId) { |
| 285 | DPRINT_DBG(NETVSC, "found rndis request for " |
| 286 | "this response (id 0x%x req type 0x%x res " |
| 287 | "type 0x%x)", |
| 288 | request->RequestMessage.Message.InitializeRequest.RequestId, |
| 289 | request->RequestMessage.NdisMessageType, |
| 290 | Response->NdisMessageType); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 291 | |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 292 | found = true; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 293 | break; |
| 294 | } |
| 295 | } |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 296 | spin_unlock_irqrestore(&Device->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 297 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 298 | if (found) { |
| 299 | if (Response->MessageLength <= sizeof(struct rndis_message)) { |
| 300 | memcpy(&request->ResponseMessage, Response, |
| 301 | Response->MessageLength); |
| 302 | } else { |
| 303 | DPRINT_ERR(NETVSC, "rndis response buffer overflow " |
| 304 | "detected (size %u max %zu)", |
| 305 | Response->MessageLength, |
| 306 | sizeof(struct rndis_filter_packet)); |
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 (Response->NdisMessageType == |
| 309 | REMOTE_NDIS_RESET_CMPLT) { |
| 310 | /* does not have a request id field */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 311 | request->ResponseMessage.Message.ResetComplete.Status = STATUS_BUFFER_OVERFLOW; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 312 | } else { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 313 | request->ResponseMessage.Message.InitializeComplete.Status = STATUS_BUFFER_OVERFLOW; |
| 314 | } |
| 315 | } |
| 316 | |
Greg Kroah-Hartman | bfc30aa | 2009-07-29 15:40:18 -0700 | [diff] [blame] | 317 | osd_WaitEventSet(request->WaitEvent); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 318 | } else { |
| 319 | DPRINT_ERR(NETVSC, "no rndis request found for this response " |
| 320 | "(id 0x%x res type 0x%x)", |
| 321 | Response->Message.InitializeComplete.RequestId, |
| 322 | Response->NdisMessageType); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 323 | } |
| 324 | |
| 325 | DPRINT_EXIT(NETVSC); |
| 326 | } |
| 327 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 328 | static void RndisFilterReceiveIndicateStatus(struct rndis_device *Device, |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 329 | struct rndis_message *Response) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 330 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 331 | struct rndis_indicate_status *indicate = |
| 332 | &Response->Message.IndicateStatus; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 333 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 334 | if (indicate->Status == RNDIS_STATUS_MEDIA_CONNECT) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 335 | gRndisFilter.InnerDriver.OnLinkStatusChanged(Device->NetDevice->Device, 1); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 336 | } else if (indicate->Status == RNDIS_STATUS_MEDIA_DISCONNECT) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 337 | gRndisFilter.InnerDriver.OnLinkStatusChanged(Device->NetDevice->Device, 0); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 338 | } else { |
| 339 | /* |
| 340 | * TODO: |
| 341 | */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 342 | } |
| 343 | } |
| 344 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 345 | static void RndisFilterReceiveData(struct rndis_device *Device, |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 346 | struct rndis_message *Message, |
| 347 | struct hv_netvsc_packet *Packet) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 348 | { |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 349 | struct rndis_packet *rndisPacket; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 350 | u32 dataOffset; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 351 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 352 | /* empty ethernet frame ?? */ |
Bill Pemberton | 45e4431 | 2010-05-05 15:27:46 -0400 | [diff] [blame] | 353 | /* ASSERT(Packet->PageBuffers[0].Length > */ |
| 354 | /* RNDIS_MESSAGE_SIZE(struct rndis_packet)); */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 355 | |
| 356 | rndisPacket = &Message->Message.Packet; |
| 357 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 358 | /* |
| 359 | * FIXME: Handle multiple rndis pkt msgs that maybe enclosed in this |
| 360 | * netvsc packet (ie TotalDataBufferLength != MessageLength) |
| 361 | */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 362 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 363 | /* Remove the rndis header and pass it back up the stack */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 364 | dataOffset = RNDIS_HEADER_SIZE + rndisPacket->DataOffset; |
| 365 | |
| 366 | Packet->TotalDataBufferLength -= dataOffset; |
| 367 | Packet->PageBuffers[0].Offset += dataOffset; |
| 368 | Packet->PageBuffers[0].Length -= dataOffset; |
| 369 | |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 370 | Packet->IsDataPacket = true; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 371 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 372 | gRndisFilter.InnerDriver.OnReceiveCallback(Device->NetDevice->Device, |
| 373 | Packet); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 374 | |
| 375 | DPRINT_EXIT(NETVSC); |
| 376 | } |
| 377 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 378 | static int RndisFilterOnReceive(struct hv_device *Device, |
| 379 | struct hv_netvsc_packet *Packet) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 380 | { |
Greg Kroah-Hartman | ce9ea4c | 2009-09-02 10:35:56 -0700 | [diff] [blame] | 381 | struct netvsc_device *netDevice = Device->Extension; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 382 | struct rndis_device *rndisDevice; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 383 | struct rndis_message rndisMessage; |
| 384 | struct rndis_message *rndisHeader; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 385 | |
Bill Pemberton | 8a62d71 | 2010-05-05 15:27:47 -0400 | [diff] [blame] | 386 | if (!netDevice) |
| 387 | return -EINVAL; |
| 388 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 389 | /* Make sure the rndis device state is initialized */ |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 390 | if (!netDevice->Extension) { |
| 391 | DPRINT_ERR(NETVSC, "got rndis message but no rndis device..." |
| 392 | "dropping this message!"); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 393 | DPRINT_EXIT(NETVSC); |
| 394 | return -1; |
| 395 | } |
| 396 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 397 | rndisDevice = (struct rndis_device *)netDevice->Extension; |
| 398 | if (rndisDevice->State == RNDIS_DEV_UNINITIALIZED) { |
| 399 | DPRINT_ERR(NETVSC, "got rndis message but rndis device " |
| 400 | "uninitialized...dropping this message!"); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 401 | DPRINT_EXIT(NETVSC); |
| 402 | return -1; |
| 403 | } |
| 404 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 405 | rndisHeader = (struct rndis_message *)kmap_atomic( |
| 406 | pfn_to_page(Packet->PageBuffers[0].Pfn), KM_IRQ0); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 407 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 408 | rndisHeader = (void *)((unsigned long)rndisHeader + |
| 409 | Packet->PageBuffers[0].Offset); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 410 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 411 | /* Make sure we got a valid rndis message */ |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 412 | /* |
| 413 | * FIXME: There seems to be a bug in set completion msg where its |
| 414 | * MessageLength is 16 bytes but the ByteCount field in the xfer page |
| 415 | * range shows 52 bytes |
| 416 | * */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 417 | #if 0 |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 418 | if (Packet->TotalDataBufferLength != rndisHeader->MessageLength) { |
| 419 | kunmap_atomic(rndisHeader - Packet->PageBuffers[0].Offset, |
| 420 | KM_IRQ0); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 421 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 422 | DPRINT_ERR(NETVSC, "invalid rndis message? (expected %u " |
| 423 | "bytes got %u)...dropping this message!", |
| 424 | rndisHeader->MessageLength, |
| 425 | Packet->TotalDataBufferLength); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 426 | DPRINT_EXIT(NETVSC); |
| 427 | return -1; |
| 428 | } |
| 429 | #endif |
| 430 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 431 | if ((rndisHeader->NdisMessageType != REMOTE_NDIS_PACKET_MSG) && |
| 432 | (rndisHeader->MessageLength > sizeof(struct rndis_message))) { |
| 433 | DPRINT_ERR(NETVSC, "incoming rndis message buffer overflow " |
| 434 | "detected (got %u, max %zu)...marking it an error!", |
| 435 | rndisHeader->MessageLength, |
| 436 | sizeof(struct rndis_message)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 437 | } |
| 438 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 439 | memcpy(&rndisMessage, rndisHeader, |
| 440 | (rndisHeader->MessageLength > sizeof(struct rndis_message)) ? |
| 441 | sizeof(struct rndis_message) : |
| 442 | rndisHeader->MessageLength); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 443 | |
Bill Pemberton | 45da89e | 2009-07-29 17:00:15 -0400 | [diff] [blame] | 444 | kunmap_atomic(rndisHeader - Packet->PageBuffers[0].Offset, KM_IRQ0); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 445 | |
| 446 | DumpRndisMessage(&rndisMessage); |
| 447 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 448 | switch (rndisMessage.NdisMessageType) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 449 | case REMOTE_NDIS_PACKET_MSG: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 450 | /* data msg */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 451 | RndisFilterReceiveData(rndisDevice, &rndisMessage, Packet); |
| 452 | break; |
| 453 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 454 | case REMOTE_NDIS_INITIALIZE_CMPLT: |
| 455 | case REMOTE_NDIS_QUERY_CMPLT: |
| 456 | case REMOTE_NDIS_SET_CMPLT: |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 457 | /* case REMOTE_NDIS_RESET_CMPLT: */ |
| 458 | /* case REMOTE_NDIS_KEEPALIVE_CMPLT: */ |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 459 | /* completion msgs */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 460 | RndisFilterReceiveResponse(rndisDevice, &rndisMessage); |
| 461 | break; |
| 462 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 463 | case REMOTE_NDIS_INDICATE_STATUS_MSG: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 464 | /* notification msgs */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 465 | RndisFilterReceiveIndicateStatus(rndisDevice, &rndisMessage); |
| 466 | break; |
| 467 | default: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 468 | DPRINT_ERR(NETVSC, "unhandled rndis message (type %u len %u)", |
| 469 | rndisMessage.NdisMessageType, |
| 470 | rndisMessage.MessageLength); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 471 | break; |
| 472 | } |
| 473 | |
| 474 | DPRINT_EXIT(NETVSC); |
| 475 | return 0; |
| 476 | } |
| 477 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 478 | static int RndisFilterQueryDevice(struct rndis_device *Device, u32 Oid, |
| 479 | void *Result, u32 *ResultSize) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 480 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 481 | struct rndis_request *request; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 482 | u32 inresultSize = *ResultSize; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 483 | struct rndis_query_request *query; |
| 484 | struct rndis_query_complete *queryComplete; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 485 | int ret = 0; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 486 | |
Bill Pemberton | 8a62d71 | 2010-05-05 15:27:47 -0400 | [diff] [blame] | 487 | if (!Result) |
| 488 | return -EINVAL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 489 | |
| 490 | *ResultSize = 0; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 491 | request = GetRndisRequest(Device, REMOTE_NDIS_QUERY_MSG, |
| 492 | RNDIS_MESSAGE_SIZE(struct rndis_query_request)); |
| 493 | if (!request) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 494 | ret = -1; |
| 495 | goto Cleanup; |
| 496 | } |
| 497 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 498 | /* Setup the rndis query */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 499 | query = &request->RequestMessage.Message.QueryRequest; |
| 500 | query->Oid = Oid; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 501 | query->InformationBufferOffset = sizeof(struct rndis_query_request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 502 | query->InformationBufferLength = 0; |
| 503 | query->DeviceVcHandle = 0; |
| 504 | |
| 505 | ret = RndisFilterSendRequest(Device, request); |
| 506 | if (ret != 0) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 507 | goto Cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 508 | |
Greg Kroah-Hartman | bfc30aa | 2009-07-29 15:40:18 -0700 | [diff] [blame] | 509 | osd_WaitEventWait(request->WaitEvent); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 510 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 511 | /* Copy the response back */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 512 | queryComplete = &request->ResponseMessage.Message.QueryComplete; |
| 513 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 514 | if (queryComplete->InformationBufferLength > inresultSize) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 515 | ret = -1; |
| 516 | goto Cleanup; |
| 517 | } |
| 518 | |
| 519 | memcpy(Result, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 520 | (void *)((unsigned long)queryComplete + |
| 521 | queryComplete->InformationBufferOffset), |
| 522 | queryComplete->InformationBufferLength); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 523 | |
| 524 | *ResultSize = queryComplete->InformationBufferLength; |
| 525 | |
| 526 | Cleanup: |
| 527 | if (request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 528 | PutRndisRequest(Device, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 529 | DPRINT_EXIT(NETVSC); |
| 530 | |
| 531 | return ret; |
| 532 | } |
| 533 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 534 | static int RndisFilterQueryDeviceMac(struct rndis_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 535 | { |
Stephen Hemminger | 9f8bd8b | 2010-05-04 09:58:54 -0700 | [diff] [blame] | 536 | u32 size = ETH_ALEN; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 537 | |
| 538 | return RndisFilterQueryDevice(Device, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 539 | RNDIS_OID_802_3_PERMANENT_ADDRESS, |
| 540 | Device->HwMacAddr, &size); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 541 | } |
| 542 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 543 | static int RndisFilterQueryDeviceLinkStatus(struct rndis_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 544 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 545 | u32 size = sizeof(u32); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 546 | |
| 547 | return RndisFilterQueryDevice(Device, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 548 | RNDIS_OID_GEN_MEDIA_CONNECT_STATUS, |
| 549 | &Device->LinkStatus, &size); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 550 | } |
| 551 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 552 | static int RndisFilterSetPacketFilter(struct rndis_device *Device, |
| 553 | u32 NewFilter) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 554 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 555 | struct rndis_request *request; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 556 | struct rndis_set_request *set; |
| 557 | struct rndis_set_complete *setComplete; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 558 | u32 status; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 559 | int ret; |
| 560 | |
Bill Pemberton | 45e4431 | 2010-05-05 15:27:46 -0400 | [diff] [blame] | 561 | /* ASSERT(RNDIS_MESSAGE_SIZE(struct rndis_set_request) + sizeof(u32) <= */ |
| 562 | /* sizeof(struct rndis_message)); */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 563 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 564 | request = GetRndisRequest(Device, REMOTE_NDIS_SET_MSG, |
| 565 | RNDIS_MESSAGE_SIZE(struct rndis_set_request) + |
| 566 | sizeof(u32)); |
| 567 | if (!request) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 568 | ret = -1; |
| 569 | goto Cleanup; |
| 570 | } |
| 571 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 572 | /* Setup the rndis set */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 573 | set = &request->RequestMessage.Message.SetRequest; |
| 574 | set->Oid = RNDIS_OID_GEN_CURRENT_PACKET_FILTER; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 575 | set->InformationBufferLength = sizeof(u32); |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 576 | set->InformationBufferOffset = sizeof(struct rndis_set_request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 577 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 578 | memcpy((void *)(unsigned long)set + sizeof(struct rndis_set_request), |
| 579 | &NewFilter, sizeof(u32)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 580 | |
| 581 | ret = RndisFilterSendRequest(Device, request); |
| 582 | if (ret != 0) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 583 | goto Cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 584 | |
Greg Kroah-Hartman | bfc30aa | 2009-07-29 15:40:18 -0700 | [diff] [blame] | 585 | ret = osd_WaitEventWaitEx(request->WaitEvent, 2000/*2sec*/); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 586 | if (!ret) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 587 | ret = -1; |
| 588 | DPRINT_ERR(NETVSC, "timeout before we got a set response..."); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 589 | /* |
| 590 | * We cant deallocate the request since we may still receive a |
| 591 | * send completion for it. |
| 592 | */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 593 | goto Exit; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 594 | } else { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 595 | if (ret > 0) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 596 | ret = 0; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 597 | setComplete = &request->ResponseMessage.Message.SetComplete; |
| 598 | status = setComplete->Status; |
| 599 | } |
| 600 | |
| 601 | Cleanup: |
| 602 | if (request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 603 | PutRndisRequest(Device, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 604 | Exit: |
| 605 | DPRINT_EXIT(NETVSC); |
| 606 | |
| 607 | return ret; |
| 608 | } |
| 609 | |
Greg Kroah-Hartman | 7e23a6e | 2009-08-27 15:58:15 -0700 | [diff] [blame] | 610 | int RndisFilterInit(struct netvsc_driver *Driver) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 611 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 612 | DPRINT_DBG(NETVSC, "sizeof(struct rndis_filter_packet) == %zd", |
| 613 | sizeof(struct rndis_filter_packet)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 614 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 615 | Driver->RequestExtSize = sizeof(struct rndis_filter_packet); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 616 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 617 | /* Driver->Context = rndisDriver; */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 618 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 619 | memset(&gRndisFilter, 0, sizeof(struct rndis_filter_driver_object)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 620 | |
| 621 | /*rndisDriver->Driver = Driver; |
| 622 | |
| 623 | ASSERT(Driver->OnLinkStatusChanged); |
| 624 | rndisDriver->OnLinkStatusChanged = Driver->OnLinkStatusChanged;*/ |
| 625 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 626 | /* Save the original dispatch handlers before we override it */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 627 | gRndisFilter.InnerDriver.Base.OnDeviceAdd = Driver->Base.OnDeviceAdd; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 628 | gRndisFilter.InnerDriver.Base.OnDeviceRemove = |
| 629 | Driver->Base.OnDeviceRemove; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 630 | gRndisFilter.InnerDriver.Base.OnCleanup = Driver->Base.OnCleanup; |
| 631 | |
Bill Pemberton | 45e4431 | 2010-05-05 15:27:46 -0400 | [diff] [blame] | 632 | /* ASSERT(Driver->OnSend); */ |
| 633 | /* ASSERT(Driver->OnReceiveCallback); */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 634 | gRndisFilter.InnerDriver.OnSend = Driver->OnSend; |
| 635 | gRndisFilter.InnerDriver.OnReceiveCallback = Driver->OnReceiveCallback; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 636 | gRndisFilter.InnerDriver.OnLinkStatusChanged = |
| 637 | Driver->OnLinkStatusChanged; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 638 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 639 | /* Override */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 640 | Driver->Base.OnDeviceAdd = RndisFilterOnDeviceAdd; |
| 641 | Driver->Base.OnDeviceRemove = RndisFilterOnDeviceRemove; |
| 642 | Driver->Base.OnCleanup = RndisFilterOnCleanup; |
| 643 | Driver->OnSend = RndisFilterOnSend; |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 644 | /* Driver->QueryLinkStatus = RndisFilterQueryDeviceLinkStatus; */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 645 | Driver->OnReceiveCallback = RndisFilterOnReceive; |
| 646 | |
| 647 | DPRINT_EXIT(NETVSC); |
| 648 | |
| 649 | return 0; |
| 650 | } |
| 651 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 652 | static int RndisFilterInitDevice(struct rndis_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 653 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 654 | struct rndis_request *request; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 655 | struct rndis_initialize_request *init; |
| 656 | struct rndis_initialize_complete *initComplete; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 657 | u32 status; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 658 | int ret; |
| 659 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 660 | request = GetRndisRequest(Device, REMOTE_NDIS_INITIALIZE_MSG, |
| 661 | RNDIS_MESSAGE_SIZE(struct rndis_initialize_request)); |
| 662 | if (!request) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 663 | ret = -1; |
| 664 | goto Cleanup; |
| 665 | } |
| 666 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 667 | /* Setup the rndis set */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 668 | init = &request->RequestMessage.Message.InitializeRequest; |
| 669 | init->MajorVersion = RNDIS_MAJOR_VERSION; |
| 670 | init->MinorVersion = RNDIS_MINOR_VERSION; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 671 | /* FIXME: Use 1536 - rounded ethernet frame size */ |
| 672 | init->MaxTransferSize = 2048; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 673 | |
| 674 | Device->State = RNDIS_DEV_INITIALIZING; |
| 675 | |
| 676 | ret = RndisFilterSendRequest(Device, request); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 677 | if (ret != 0) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 678 | Device->State = RNDIS_DEV_UNINITIALIZED; |
| 679 | goto Cleanup; |
| 680 | } |
| 681 | |
Greg Kroah-Hartman | bfc30aa | 2009-07-29 15:40:18 -0700 | [diff] [blame] | 682 | osd_WaitEventWait(request->WaitEvent); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 683 | |
| 684 | initComplete = &request->ResponseMessage.Message.InitializeComplete; |
| 685 | status = initComplete->Status; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 686 | if (status == RNDIS_STATUS_SUCCESS) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 687 | Device->State = RNDIS_DEV_INITIALIZED; |
| 688 | ret = 0; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 689 | } else { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 690 | Device->State = RNDIS_DEV_UNINITIALIZED; |
| 691 | ret = -1; |
| 692 | } |
| 693 | |
| 694 | Cleanup: |
| 695 | if (request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 696 | PutRndisRequest(Device, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 697 | DPRINT_EXIT(NETVSC); |
| 698 | |
| 699 | return ret; |
| 700 | } |
| 701 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 702 | static void RndisFilterHaltDevice(struct rndis_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 703 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 704 | struct rndis_request *request; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 705 | struct rndis_halt_request *halt; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 706 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 707 | /* Attempt to do a rndis device halt */ |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 708 | request = GetRndisRequest(Device, REMOTE_NDIS_HALT_MSG, |
| 709 | RNDIS_MESSAGE_SIZE(struct rndis_halt_request)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 710 | if (!request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 711 | goto Cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 712 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 713 | /* Setup the rndis set */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 714 | halt = &request->RequestMessage.Message.HaltRequest; |
Bill Pemberton | f488841 | 2009-07-29 17:00:12 -0400 | [diff] [blame] | 715 | halt->RequestId = atomic_inc_return(&Device->NewRequestId); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 716 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 717 | /* Ignore return since this msg is optional. */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 718 | RndisFilterSendRequest(Device, request); |
| 719 | |
| 720 | Device->State = RNDIS_DEV_UNINITIALIZED; |
| 721 | |
| 722 | Cleanup: |
| 723 | if (request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 724 | PutRndisRequest(Device, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 725 | DPRINT_EXIT(NETVSC); |
| 726 | return; |
| 727 | } |
| 728 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 729 | static int RndisFilterOpenDevice(struct rndis_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 730 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 731 | int ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 732 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 733 | if (Device->State != RNDIS_DEV_INITIALIZED) |
| 734 | return 0; |
| 735 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 736 | ret = RndisFilterSetPacketFilter(Device, |
| 737 | NDIS_PACKET_TYPE_BROADCAST | |
Haiyang Zhang | 95beae9 | 2010-04-19 15:32:11 +0000 | [diff] [blame] | 738 | NDIS_PACKET_TYPE_ALL_MULTICAST | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 739 | NDIS_PACKET_TYPE_DIRECTED); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 740 | if (ret == 0) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 741 | Device->State = RNDIS_DEV_DATAINITIALIZED; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 742 | |
| 743 | DPRINT_EXIT(NETVSC); |
| 744 | return ret; |
| 745 | } |
| 746 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 747 | static int RndisFilterCloseDevice(struct rndis_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 748 | { |
| 749 | int ret; |
| 750 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 751 | if (Device->State != RNDIS_DEV_DATAINITIALIZED) |
| 752 | return 0; |
| 753 | |
| 754 | ret = RndisFilterSetPacketFilter(Device, 0); |
| 755 | if (ret == 0) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 756 | Device->State = RNDIS_DEV_INITIALIZED; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 757 | |
| 758 | DPRINT_EXIT(NETVSC); |
| 759 | |
| 760 | return ret; |
| 761 | } |
| 762 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 763 | static int RndisFilterOnDeviceAdd(struct hv_device *Device, |
| 764 | void *AdditionalInfo) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 765 | { |
| 766 | int ret; |
Greg Kroah-Hartman | ce9ea4c | 2009-09-02 10:35:56 -0700 | [diff] [blame] | 767 | struct netvsc_device *netDevice; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 768 | struct rndis_device *rndisDevice; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 769 | struct netvsc_device_info *deviceInfo = AdditionalInfo; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 770 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 771 | rndisDevice = GetRndisDevice(); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 772 | if (!rndisDevice) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 773 | DPRINT_EXIT(NETVSC); |
| 774 | return -1; |
| 775 | } |
| 776 | |
| 777 | DPRINT_DBG(NETVSC, "rndis device object allocated - %p", rndisDevice); |
| 778 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 779 | /* |
| 780 | * Let the inner driver handle this first to create the netvsc channel |
| 781 | * NOTE! Once the channel is created, we may get a receive callback |
| 782 | * (RndisFilterOnReceive()) before this call is completed |
| 783 | */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 784 | ret = gRndisFilter.InnerDriver.Base.OnDeviceAdd(Device, AdditionalInfo); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 785 | if (ret != 0) { |
| 786 | kfree(rndisDevice); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 787 | DPRINT_EXIT(NETVSC); |
| 788 | return ret; |
| 789 | } |
| 790 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 791 | |
| 792 | /* Initialize the rndis device */ |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 793 | netDevice = Device->Extension; |
Bill Pemberton | 45e4431 | 2010-05-05 15:27:46 -0400 | [diff] [blame] | 794 | /* ASSERT(netDevice); */ |
| 795 | /* ASSERT(netDevice->Device); */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 796 | |
| 797 | netDevice->Extension = rndisDevice; |
| 798 | rndisDevice->NetDevice = netDevice; |
| 799 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 800 | /* Send the rndis initialization message */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 801 | ret = RndisFilterInitDevice(rndisDevice); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 802 | if (ret != 0) { |
| 803 | /* |
| 804 | * TODO: If rndis init failed, we will need to shut down the |
| 805 | * channel |
| 806 | */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 807 | } |
| 808 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 809 | /* Get the mac address */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 810 | ret = RndisFilterQueryDeviceMac(rndisDevice); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 811 | if (ret != 0) { |
| 812 | /* |
| 813 | * TODO: shutdown rndis device and the channel |
| 814 | */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 815 | } |
| 816 | |
Stephen Hemminger | 9f8bd8b | 2010-05-04 09:58:54 -0700 | [diff] [blame] | 817 | DPRINT_INFO(NETVSC, "Device 0x%p mac addr %pM", |
| 818 | rndisDevice, rndisDevice->HwMacAddr); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 819 | |
Stephen Hemminger | 9f8bd8b | 2010-05-04 09:58:54 -0700 | [diff] [blame] | 820 | memcpy(deviceInfo->MacAddr, rndisDevice->HwMacAddr, ETH_ALEN); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 821 | |
| 822 | RndisFilterQueryDeviceLinkStatus(rndisDevice); |
| 823 | |
| 824 | deviceInfo->LinkState = rndisDevice->LinkStatus; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 825 | DPRINT_INFO(NETVSC, "Device 0x%p link state %s", rndisDevice, |
| 826 | ((deviceInfo->LinkState) ? ("down") : ("up"))); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 827 | |
| 828 | DPRINT_EXIT(NETVSC); |
| 829 | |
| 830 | return ret; |
| 831 | } |
| 832 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 833 | static int RndisFilterOnDeviceRemove(struct hv_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 834 | { |
Greg Kroah-Hartman | ce9ea4c | 2009-09-02 10:35:56 -0700 | [diff] [blame] | 835 | struct netvsc_device *netDevice = Device->Extension; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 836 | struct rndis_device *rndisDevice = netDevice->Extension; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 837 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 838 | /* Halt and release the rndis device */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 839 | RndisFilterHaltDevice(rndisDevice); |
| 840 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 841 | kfree(rndisDevice); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 842 | netDevice->Extension = NULL; |
| 843 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 844 | /* Pass control to inner driver to remove the device */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 845 | gRndisFilter.InnerDriver.Base.OnDeviceRemove(Device); |
| 846 | |
| 847 | DPRINT_EXIT(NETVSC); |
| 848 | |
| 849 | return 0; |
| 850 | } |
| 851 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 852 | static void RndisFilterOnCleanup(struct hv_driver *Driver) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 853 | { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 854 | DPRINT_EXIT(NETVSC); |
| 855 | } |
| 856 | |
Greg Kroah-Hartman | 2d07534 | 2010-01-08 10:24:42 -0800 | [diff] [blame] | 857 | int RndisFilterOnOpen(struct hv_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 858 | { |
| 859 | int ret; |
Greg Kroah-Hartman | ce9ea4c | 2009-09-02 10:35:56 -0700 | [diff] [blame] | 860 | struct netvsc_device *netDevice = Device->Extension; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 861 | |
Bill Pemberton | 8a62d71 | 2010-05-05 15:27:47 -0400 | [diff] [blame] | 862 | if (!netDevice) |
| 863 | return -EINVAL; |
| 864 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 865 | ret = RndisFilterOpenDevice(netDevice->Extension); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 866 | |
| 867 | DPRINT_EXIT(NETVSC); |
| 868 | |
| 869 | return ret; |
| 870 | } |
| 871 | |
Greg Kroah-Hartman | 4f28900 | 2010-01-08 10:25:01 -0800 | [diff] [blame] | 872 | int RndisFilterOnClose(struct hv_device *Device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 873 | { |
| 874 | int ret; |
Greg Kroah-Hartman | ce9ea4c | 2009-09-02 10:35:56 -0700 | [diff] [blame] | 875 | struct netvsc_device *netDevice = Device->Extension; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 876 | |
Bill Pemberton | 8a62d71 | 2010-05-05 15:27:47 -0400 | [diff] [blame] | 877 | if (!netDevice) |
| 878 | return -EINVAL; |
| 879 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 880 | ret = RndisFilterCloseDevice(netDevice->Extension); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 881 | |
| 882 | DPRINT_EXIT(NETVSC); |
| 883 | |
| 884 | return ret; |
| 885 | } |
| 886 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 887 | static int RndisFilterOnSend(struct hv_device *Device, |
| 888 | struct hv_netvsc_packet *Packet) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 889 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 890 | int ret; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 891 | struct rndis_filter_packet *filterPacket; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 892 | struct rndis_message *rndisMessage; |
| 893 | struct rndis_packet *rndisPacket; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 894 | u32 rndisMessageSize; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 895 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 896 | /* Add the rndis header */ |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 897 | filterPacket = (struct rndis_filter_packet *)Packet->Extension; |
Bill Pemberton | 45e4431 | 2010-05-05 15:27:46 -0400 | [diff] [blame] | 898 | /* ASSERT(filterPacket); */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 899 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 900 | memset(filterPacket, 0, sizeof(struct rndis_filter_packet)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 901 | |
| 902 | rndisMessage = &filterPacket->Message; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 903 | rndisMessageSize = RNDIS_MESSAGE_SIZE(struct rndis_packet); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 904 | |
| 905 | rndisMessage->NdisMessageType = REMOTE_NDIS_PACKET_MSG; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 906 | rndisMessage->MessageLength = Packet->TotalDataBufferLength + |
| 907 | rndisMessageSize; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 908 | |
| 909 | rndisPacket = &rndisMessage->Message.Packet; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 910 | rndisPacket->DataOffset = sizeof(struct rndis_packet); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 911 | rndisPacket->DataLength = Packet->TotalDataBufferLength; |
| 912 | |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 913 | Packet->IsDataPacket = true; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 914 | Packet->PageBuffers[0].Pfn = virt_to_phys(rndisMessage) >> PAGE_SHIFT; |
| 915 | Packet->PageBuffers[0].Offset = |
| 916 | (unsigned long)rndisMessage & (PAGE_SIZE-1); |
| 917 | Packet->PageBuffers[0].Length = rndisMessageSize; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 918 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 919 | /* Save the packet send completion and context */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 920 | filterPacket->OnCompletion = Packet->Completion.Send.OnSendCompletion; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 921 | filterPacket->CompletionContext = |
| 922 | Packet->Completion.Send.SendCompletionContext; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 923 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 924 | /* Use ours */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 925 | Packet->Completion.Send.OnSendCompletion = RndisFilterOnSendCompletion; |
| 926 | Packet->Completion.Send.SendCompletionContext = filterPacket; |
| 927 | |
| 928 | ret = gRndisFilter.InnerDriver.OnSend(Device, Packet); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 929 | if (ret != 0) { |
| 930 | /* |
| 931 | * Reset the completion to originals to allow retries from |
| 932 | * above |
| 933 | */ |
| 934 | Packet->Completion.Send.OnSendCompletion = |
| 935 | filterPacket->OnCompletion; |
| 936 | Packet->Completion.Send.SendCompletionContext = |
| 937 | filterPacket->CompletionContext; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 938 | } |
| 939 | |
| 940 | DPRINT_EXIT(NETVSC); |
| 941 | |
| 942 | return ret; |
| 943 | } |
| 944 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 945 | static void RndisFilterOnSendCompletion(void *Context) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 946 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 947 | struct rndis_filter_packet *filterPacket = Context; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 948 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 949 | /* Pass it back to the original handler */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 950 | filterPacket->OnCompletion(filterPacket->CompletionContext); |
| 951 | |
| 952 | DPRINT_EXIT(NETVSC); |
| 953 | } |
| 954 | |
| 955 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 956 | static void RndisFilterOnSendRequestCompletion(void *Context) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 957 | { |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 958 | /* Noop */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 959 | DPRINT_EXIT(NETVSC); |
| 960 | } |