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3545 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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6 | ;; STACK.INC ;; |
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7 | ;; ;; |
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8 | ;; TCP/IP stack for KolibriOS ;; |
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9 | ;; ;; |
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10 | ;; Written by hidnplayr@kolibrios.org ;; |
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11 | ;; ;; |
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12 | ;; Some parts of code are based on the work of: ;; |
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13 | ;; Mike Hibbett (menuetos network stack) ;; |
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14 | ;; Eugen Brasoveanu (solar os network stack and drivers) ;; |
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15 | ;; mike.dld (kolibrios socket code) ;; |
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16 | ;; ;; |
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17 | ;; TCP part is based on 4.4BSD ;; |
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18 | ;; ;; |
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19 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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20 | ;; Version 2, June 1991 ;; |
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21 | ;; ;; |
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22 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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23 | |||
24 | $Revision: 3523 $ |
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25 | |||
26 | uglobal |
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27 | net_10ms dd ? |
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28 | net_tmr_count dw ? |
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29 | endg |
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30 | |||
3556 | hidnplayr | 31 | DEBUG_NETWORK_ERROR = 1 |
32 | DEBUG_NETWORK_VERBOSE = 0 |
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33 | |||
3600 | hidnplayr | 34 | NET_DEVICES_MAX = 16 |
3545 | hidnplayr | 35 | ARP_BLOCK = 1 ; true or false |
36 | |||
3600 | hidnplayr | 37 | EPHEMERAL_PORT_MIN = 49152 |
38 | EPHEMERAL_PORT_MAX = 61000 |
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3545 | hidnplayr | 39 | MIN_EPHEMERAL_PORT_N = 0x00C0 ; same in Network byte order (FIXME) |
40 | MAX_EPHEMERAL_PORT_N = 0x48EE ; same in Network byte order (FIXME) |
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41 | |||
42 | ; Ethernet protocol numbers |
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3600 | hidnplayr | 43 | ETHER_PROTO_ARP = 0x0608 |
44 | ETHER_PROTO_IPv4 = 0x0008 |
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45 | ETHER_PROTO_IPv6 = 0xDD86 |
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46 | ETHER_PROTO_PPP_DISCOVERY = 0x6388 |
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47 | ETHER_PROTO_PPP_SESSION = 0x6488 |
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3545 | hidnplayr | 48 | |
3600 | hidnplayr | 49 | ; Internet protocol numbers |
50 | IP_PROTO_IP = 0 |
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51 | IP_PROTO_ICMP = 1 |
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52 | IP_PROTO_TCP = 6 |
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53 | IP_PROTO_UDP = 17 |
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54 | |||
3545 | hidnplayr | 55 | ; PPP protocol numbers |
3600 | hidnplayr | 56 | PPP_PROTO_IPv4 = 0x2100 |
57 | PPP_PROTO_IPV6 = 0x5780 |
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58 | PPP_PROTO_ETHERNET = 666 ; FIXME |
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3545 | hidnplayr | 59 | |
60 | ;Protocol family |
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61 | AF_UNSPEC = 0 |
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62 | AF_LOCAL = 1 |
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63 | AF_INET4 = 2 |
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64 | AF_INET6 = 10 |
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3600 | hidnplayr | 65 | AF_PPP = 777 ; FIXME |
3545 | hidnplayr | 66 | |
67 | ; Socket types |
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68 | SOCK_STREAM = 1 |
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69 | SOCK_DGRAM = 2 |
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70 | SOCK_RAW = 3 |
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71 | |||
72 | ; Socket options |
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73 | SO_ACCEPTCON = 1 shl 0 |
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74 | SO_BROADCAST = 1 shl 1 |
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75 | SO_DEBUG = 1 shl 2 |
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76 | SO_DONTROUTE = 1 shl 3 |
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77 | SO_KEEPALIVE = 1 shl 4 |
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78 | SO_OOBINLINE = 1 shl 5 |
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79 | SO_REUSEADDR = 1 shl 6 |
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80 | SO_REUSEPORT = 1 shl 7 |
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81 | SO_USELOOPBACK = 1 shl 8 |
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82 | SO_BINDTODEVICE = 1 shl 9 |
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83 | |||
84 | SO_NONBLOCK = 1 shl 31 |
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85 | |||
86 | ; Socket flags for user calls |
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87 | MSG_PEEK = 0x02 |
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88 | MSG_DONTWAIT = 0x40 |
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89 | |||
90 | ; Socket level |
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91 | SOL_SOCKET = 0 |
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92 | |||
93 | |||
94 | ; Socket States |
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3600 | hidnplayr | 95 | SS_NOFDREF = 0x0001 ; no file table ref any more |
96 | SS_ISCONNECTED = 0x0002 ; socket connected to a peer |
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97 | SS_ISCONNECTING = 0x0004 ; in process of connecting to peer |
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98 | SS_ISDISCONNECTING = 0x0008 ; in process of disconnecting |
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99 | SS_CANTSENDMORE = 0x0010 ; can't send more data to peer |
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100 | SS_CANTRCVMORE = 0x0020 ; can't receive more data from peer |
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101 | SS_RCVATMARK = 0x0040 ; at mark on input |
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102 | SS_ISABORTING = 0x0080 ; aborting fd references - close() |
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103 | SS_RESTARTSYS = 0x0100 ; restart blocked system calls |
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104 | SS_ISDISCONNECTED = 0x0800 ; socket disconnected from peer |
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3545 | hidnplayr | 105 | |
3674 | hidnplayr | 106 | SS_ASYNC = 0x1000 ; async i/o notify |
107 | SS_ISCONFIRMING = 0x2000 ; deciding to accept connection req |
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108 | SS_MORETOCOME = 0x4000 |
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3545 | hidnplayr | 109 | |
110 | SS_BLOCKED = 0x8000 |
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111 | |||
112 | |||
3600 | hidnplayr | 113 | SOCKET_MAXDATA = 4096*32 ; must be 4096*(power of 2) where 'power of 2' is at least 8 |
114 | MAX_backlog = 20 ; maximum backlog for stream sockets |
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3545 | hidnplayr | 115 | |
116 | ; Error Codes |
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3674 | hidnplayr | 117 | ENOBUFS = 1 |
118 | EOPNOTSUPP = 4 |
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119 | EWOULDBLOCK = 6 |
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120 | ENOTCONN = 9 |
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121 | EALREADY = 10 |
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122 | EINVAL = 11 |
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123 | EMSGSIZE = 12 |
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124 | ENOMEM = 18 |
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125 | EADDRINUSE = 20 |
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3545 | hidnplayr | 126 | ECONNREFUSED = 61 |
127 | ECONNRESET = 52 |
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128 | ETIMEDOUT = 60 |
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129 | ECONNABORTED = 53 |
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130 | |||
131 | ; Api protocol numbers |
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132 | API_ETH = 0 |
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133 | API_IPv4 = 1 |
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134 | API_ICMP = 2 |
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135 | API_UDP = 3 |
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136 | API_TCP = 4 |
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137 | API_ARP = 5 |
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138 | API_PPPOE = 6 |
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139 | API_IPv6 = 7 |
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140 | |||
3600 | hidnplayr | 141 | ; Network device types |
142 | NET_DEVICE_LOOPBACK = 0 |
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143 | NET_DEVICE_ETH = 1 |
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144 | NET_DEVICE_SLIP = 2 |
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145 | |||
146 | ; Network link types (link protocols) |
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147 | NET_LINK_LOOPBACK = 0 ;;; Really a link type? |
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148 | NET_LINK_MAC = 1 ; Media access control (ethernet, isdn, ...) |
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149 | NET_LINK_PPP = 2 ; Point to Point Protocol (PPPoE, ...) |
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150 | NET_LINK_IEEE802.11 = 3 ; IEEE 802.11 (WiFi) |
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151 | |||
152 | ; Hardware acceleration bits |
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3545 | hidnplayr | 153 | HWACC_TCP_IPv4 = 1 shl 0 |
154 | |||
155 | struct NET_DEVICE |
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156 | |||
3600 | hidnplayr | 157 | device_type dd ? ; Type field |
3545 | hidnplayr | 158 | mtu dd ? ; Maximal Transmission Unit |
159 | name dd ? ; Ptr to 0 terminated string |
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160 | |||
161 | unload dd ? ; Ptrs to driver functions |
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162 | reset dd ? ; |
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163 | transmit dd ? ; |
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164 | |||
165 | bytes_tx dq ? ; Statistics, updated by the driver |
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166 | bytes_rx dq ? ; |
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167 | packets_tx dd ? ; |
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168 | packets_rx dd ? ; |
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169 | |||
3600 | hidnplayr | 170 | link_state dd ? ; link state (0 = no link) |
3545 | hidnplayr | 171 | hwacc dd ? ; bitmask stating enabled HW accelerations (offload engines) |
172 | |||
173 | ends |
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174 | |||
175 | |||
176 | ; Exactly as it says.. |
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177 | macro pseudo_random reg { |
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178 | add reg, [esp] |
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179 | rol reg, 5 |
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180 | xor reg, [timer_ticks] |
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181 | ; add reg, [CPU_FREQ] |
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182 | imul reg, 214013 |
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183 | xor reg, 0xdeadbeef |
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184 | rol reg, 9 |
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185 | } |
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186 | |||
187 | ; Network to Hardware byte order (dword) |
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188 | macro ntohd reg { |
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189 | |||
190 | rol word reg, 8 |
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191 | rol dword reg, 16 |
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192 | rol word reg , 8 |
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193 | |||
194 | } |
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195 | |||
196 | ; Network to Hardware byte order (word) |
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197 | macro ntohw reg { |
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198 | |||
199 | rol word reg, 8 |
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200 | |||
201 | } |
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202 | |||
203 | |||
204 | include "queue.inc" |
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205 | |||
206 | include "loopback.inc" |
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207 | include "ethernet.inc" |
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208 | |||
209 | include "PPPoE.inc" |
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210 | |||
211 | include "ARP.inc" |
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212 | include "IPv4.inc" |
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213 | include "IPv6.inc" |
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214 | |||
215 | include "icmp.inc" |
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216 | include "udp.inc" |
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217 | include "tcp.inc" |
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218 | |||
219 | include "socket.inc" |
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220 | |||
221 | |||
222 | |||
3698 | hidnplayr | 223 | uglobal |
3545 | hidnplayr | 224 | align 4 |
225 | |||
226 | NET_RUNNING dd ? |
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3600 | hidnplayr | 227 | NET_DRV_LIST rd NET_DEVICES_MAX |
3545 | hidnplayr | 228 | |
229 | endg |
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230 | |||
231 | |||
232 | ;----------------------------------------------------------------- |
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233 | ; |
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234 | ; stack_init |
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235 | ; |
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236 | ; This function calls all network init procedures |
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237 | ; |
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238 | ; IN: / |
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239 | ; OUT: / |
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240 | ; |
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241 | ;----------------------------------------------------------------- |
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242 | align 4 |
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243 | stack_init: |
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244 | |||
245 | ; Init the network drivers list |
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246 | xor eax, eax |
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247 | mov edi, NET_RUNNING |
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3600 | hidnplayr | 248 | mov ecx, (NET_DEVICES_MAX + 2) |
3711 | clevermous | 249 | rep stosd |
3545 | hidnplayr | 250 | |
251 | PPPoE_init |
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252 | |||
253 | IPv4_init |
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254 | ; IPv6_init |
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255 | ICMP_init |
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256 | |||
257 | ARP_init |
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258 | UDP_init |
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259 | TCP_init |
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260 | |||
261 | SOCKET_init |
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262 | |||
3601 | hidnplayr | 263 | LOOP_init |
264 | |||
3545 | hidnplayr | 265 | mov [net_tmr_count], 0 |
266 | |||
267 | ret |
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268 | |||
269 | |||
270 | |||
271 | ; Wakeup every tick. |
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272 | proc stack_handler_has_work? |
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273 | |||
3711 | clevermous | 274 | mov eax, [timer_ticks] |
275 | cmp eax, [net_10ms] |
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3545 | hidnplayr | 276 | |
277 | ret |
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278 | endp |
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279 | |||
280 | |||
281 | ;----------------------------------------------------------------- |
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282 | ; |
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283 | ; stack_handler |
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284 | ; |
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285 | ; This function is called in kernel loop |
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286 | ; |
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287 | ; IN: / |
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288 | ; OUT: / |
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289 | ; |
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290 | ;----------------------------------------------------------------- |
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291 | align 4 |
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292 | stack_handler: |
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293 | |||
294 | ; Test for 10ms tick |
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295 | mov eax, [timer_ticks] |
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296 | cmp eax, [net_10ms] |
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297 | je .exit |
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298 | mov [net_10ms], eax |
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299 | |||
300 | cmp [NET_RUNNING], 0 |
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301 | je .exit |
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302 | |||
303 | test [net_10ms], 0x0f ; 160ms |
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304 | jnz .exit |
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305 | |||
306 | TCP_timer_160ms |
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307 | |||
308 | test [net_10ms], 0x3f ; 640ms |
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309 | jnz .exit |
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310 | |||
311 | TCP_timer_640ms |
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312 | ARP_decrease_entry_ttls |
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313 | IPv4_decrease_fragment_ttls |
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314 | |||
315 | .exit: |
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316 | ret |
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317 | |||
318 | |||
3861 | hidnplayr | 319 | align 4 |
320 | NET_packet_free: |
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321 | and dword[esp+4], not 0xfff |
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322 | jmp kernel_free |
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3545 | hidnplayr | 323 | |
3861 | hidnplayr | 324 | |
3545 | hidnplayr | 325 | align 4 |
326 | NET_link_changed: |
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327 | |||
3601 | hidnplayr | 328 | DEBUGF DEBUG_NETWORK_VERBOSE, "NET_link_changed device=0x%x status=0x%x\n", ebx, [ebx + NET_DEVICE.link_state] |
3545 | hidnplayr | 329 | |
330 | align 4 |
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331 | NET_send_event: |
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332 | |||
3556 | hidnplayr | 333 | DEBUGF DEBUG_NETWORK_VERBOSE, "NET_send_event\n" |
3545 | hidnplayr | 334 | |
335 | ; Send event to all applications |
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336 | push edi ecx |
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337 | mov edi, SLOT_BASE |
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338 | mov ecx, [TASK_COUNT] |
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339 | .loop: |
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340 | add edi, 256 |
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341 | or [edi + APPDATA.event_mask], EVENT_NETWORK2 |
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342 | loop .loop |
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343 | pop ecx edi |
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344 | |||
345 | ret |
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346 | |||
347 | |||
348 | |||
349 | ;----------------------------------------------------------------- |
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350 | ; |
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351 | ; NET_add_device: |
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352 | ; |
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353 | ; This function is called by the network drivers, |
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354 | ; to register each running NIC to the kernel |
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355 | ; |
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356 | ; IN: Pointer to device structure in ebx |
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357 | ; OUT: Device num in eax, -1 on error |
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358 | ; |
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359 | ;----------------------------------------------------------------- |
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360 | align 4 |
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361 | NET_add_device: |
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362 | |||
3556 | hidnplayr | 363 | DEBUGF DEBUG_NETWORK_VERBOSE, "NET_Add_Device: %x\n", ebx ;;; TODO: use mutex to lock net device list |
3545 | hidnplayr | 364 | |
3600 | hidnplayr | 365 | cmp [NET_RUNNING], NET_DEVICES_MAX |
3545 | hidnplayr | 366 | jae .error |
367 | |||
368 | ;---------------------------------- |
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369 | ; Check if device is already listed |
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370 | mov eax, ebx |
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3600 | hidnplayr | 371 | mov ecx, NET_DEVICES_MAX ; We need to check whole list because a device may be removed without re-organizing list |
3545 | hidnplayr | 372 | mov edi, NET_DRV_LIST |
373 | |||
3711 | clevermous | 374 | repne scasd ; See if device is already in the list |
3545 | hidnplayr | 375 | jz .error |
376 | |||
377 | ;---------------------------- |
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378 | ; Find empty slot in the list |
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379 | xor eax, eax |
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3600 | hidnplayr | 380 | mov ecx, NET_DEVICES_MAX |
3545 | hidnplayr | 381 | mov edi, NET_DRV_LIST |
382 | |||
3711 | clevermous | 383 | repne scasd |
3545 | hidnplayr | 384 | jnz .error |
385 | |||
386 | sub edi, 4 |
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387 | |||
388 | ;----------------------------- |
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389 | ; Add device to the found slot |
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390 | mov [edi], ebx ; add device to list |
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391 | |||
392 | mov eax, edi ; Calculate device number in eax |
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393 | sub eax, NET_DRV_LIST |
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394 | shr eax, 2 |
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395 | |||
396 | inc [NET_RUNNING] ; Indicate that one more network device is up and running |
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397 | |||
398 | call NET_send_event |
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399 | |||
3556 | hidnplayr | 400 | DEBUGF DEBUG_NETWORK_VERBOSE, "Device number: %u\n", eax |
3545 | hidnplayr | 401 | ret |
402 | |||
403 | .error: |
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404 | or eax, -1 |
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3556 | hidnplayr | 405 | DEBUGF DEBUG_NETWORK_ERROR, "Adding network device failed\n" |
3545 | hidnplayr | 406 | ret |
407 | |||
408 | |||
409 | |||
410 | ;----------------------------------------------------------------- |
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411 | ; |
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412 | ; NET_Remove_Device: |
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413 | ; |
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3601 | hidnplayr | 414 | ; This function is called by network drivers, |
3545 | hidnplayr | 415 | ; to unregister network devices from the kernel |
416 | ; |
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417 | ; IN: Pointer to device structure in ebx |
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418 | ; OUT: eax: -1 on error |
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419 | ; |
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420 | ;----------------------------------------------------------------- |
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421 | align 4 |
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422 | NET_remove_device: |
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423 | |||
424 | cmp [NET_RUNNING], 0 |
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425 | je .error |
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426 | |||
427 | ;---------------------------- |
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428 | ; Find the driver in the list |
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429 | |||
430 | mov eax, ebx |
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3600 | hidnplayr | 431 | mov ecx, NET_DEVICES_MAX |
3601 | hidnplayr | 432 | mov edi, NET_DRV_LIST |
3545 | hidnplayr | 433 | |
3711 | clevermous | 434 | repne scasd |
3545 | hidnplayr | 435 | jnz .error |
436 | |||
437 | ;------------------------ |
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438 | ; Remove it from the list |
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439 | |||
440 | xor eax, eax |
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441 | mov dword [edi-4], eax |
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3601 | hidnplayr | 442 | dec [NET_RUNNING] |
3545 | hidnplayr | 443 | |
444 | call NET_send_event |
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445 | |||
3601 | hidnplayr | 446 | xor eax, eax |
3545 | hidnplayr | 447 | ret |
448 | |||
449 | .error: |
||
450 | or eax, -1 |
||
451 | ret |
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452 | |||
453 | |||
454 | |||
455 | ;----------------------------------------------------------------- |
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456 | ; |
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457 | ; NET_ptr_to_num |
||
458 | ; |
||
459 | ; IN: ebx = ptr to device struct |
||
460 | ; OUT: edi = -1 on error, device number otherwise |
||
461 | ; |
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462 | ;----------------------------------------------------------------- |
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463 | align 4 |
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464 | NET_ptr_to_num: |
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3643 | hidnplayr | 465 | |
466 | call NET_ptr_to_num4 |
||
467 | ror edi, 2 ; If -1, stay -1 |
||
468 | ; valid device numbers have last two bits 0, so do just shr |
||
469 | |||
470 | ret |
||
471 | |||
472 | align 4 |
||
473 | NET_ptr_to_num4: ; Todo, place number in device structure so we only need to verify? |
||
474 | |||
3545 | hidnplayr | 475 | push ecx |
476 | |||
3600 | hidnplayr | 477 | mov ecx, NET_DEVICES_MAX |
3545 | hidnplayr | 478 | mov edi, NET_DRV_LIST |
479 | .loop: |
||
480 | cmp ebx, [edi] |
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3643 | hidnplayr | 481 | je .found |
3545 | hidnplayr | 482 | add edi, 4 |
483 | dec ecx |
||
484 | jnz .loop |
||
485 | |||
486 | or edi, -1 |
||
487 | pop ecx |
||
488 | ret |
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489 | |||
490 | .found: |
||
491 | sub edi, NET_DRV_LIST |
||
492 | pop ecx |
||
493 | ret |
||
494 | |||
495 | ;----------------------------------------------------------------- |
||
496 | ; |
||
497 | ; checksum_1 |
||
498 | ; |
||
499 | ; This is the first of two functions needed to calculate a checksum. |
||
500 | ; |
||
501 | ; IN: edx = start offset for semi-checksum |
||
502 | ; esi = pointer to data |
||
503 | ; ecx = data size |
||
504 | ; OUT: edx = semi-checksum |
||
505 | ; |
||
506 | ; |
||
507 | ; Code was optimized by diamond |
||
508 | ; |
||
509 | ;----------------------------------------------------------------- |
||
510 | align 4 |
||
511 | checksum_1: |
||
512 | |||
513 | shr ecx, 1 |
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514 | pushf |
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515 | jz .no_2 |
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516 | |||
517 | shr ecx, 1 |
||
518 | pushf |
||
519 | jz .no_4 |
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520 | |||
521 | shr ecx, 1 |
||
522 | pushf |
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523 | jz .no_8 |
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524 | |||
525 | .loop: |
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526 | add dl, [esi+1] |
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527 | adc dh, [esi+0] |
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528 | |||
529 | adc dl, [esi+3] |
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530 | adc dh, [esi+2] |
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531 | |||
532 | adc dl, [esi+5] |
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533 | adc dh, [esi+4] |
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534 | |||
535 | adc dl, [esi+7] |
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536 | adc dh, [esi+6] |
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537 | |||
538 | adc edx, 0 |
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539 | add esi, 8 |
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540 | |||
541 | dec ecx |
||
542 | jnz .loop |
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543 | |||
544 | adc edx, 0 |
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545 | |||
546 | .no_8: |
||
547 | popf |
||
548 | jnc .no_4 |
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549 | |||
550 | add dl, [esi+1] |
||
551 | adc dh, [esi+0] |
||
552 | |||
553 | adc dl, [esi+3] |
||
554 | adc dh, [esi+2] |
||
555 | |||
556 | adc edx, 0 |
||
557 | add esi, 4 |
||
558 | |||
559 | .no_4: |
||
560 | popf |
||
561 | jnc .no_2 |
||
562 | |||
563 | add dl, [esi+1] |
||
564 | adc dh, [esi+0] |
||
565 | |||
566 | adc edx, 0 |
||
567 | inc esi |
||
568 | inc esi |
||
569 | |||
570 | .no_2: |
||
571 | popf |
||
572 | jnc .end |
||
573 | |||
574 | add dh, [esi+0] |
||
575 | adc edx, 0 |
||
576 | .end: |
||
577 | ret |
||
578 | |||
579 | ;----------------------------------------------------------------- |
||
580 | ; |
||
581 | ; checksum_2 |
||
582 | ; |
||
583 | ; This function calculates the final ip/tcp/udp checksum for you |
||
584 | ; |
||
585 | ; IN: edx = semi-checksum |
||
586 | ; OUT: dx = checksum (in INET byte order) |
||
587 | ; |
||
588 | ;----------------------------------------------------------------- |
||
589 | align 4 |
||
590 | checksum_2: |
||
591 | |||
592 | mov ecx, edx |
||
593 | shr ecx, 16 |
||
594 | and edx, 0xffff |
||
595 | add edx, ecx |
||
596 | |||
597 | mov ecx, edx |
||
598 | shr ecx, 16 |
||
599 | add dx, cx |
||
600 | test dx, dx ; it seems that ZF is not set when CF is set :( |
||
601 | not dx |
||
602 | jnz .not_zero |
||
603 | dec dx |
||
604 | .not_zero: |
||
605 | xchg dl, dh |
||
606 | |||
3556 | hidnplayr | 607 | DEBUGF DEBUG_NETWORK_VERBOSE, "Checksum: %x\n", dx |
3545 | hidnplayr | 608 | |
609 | ret |
||
610 | |||
611 | |||
612 | |||
613 | ;---------------------------------------------------------------- |
||
614 | ; |
||
3601 | hidnplayr | 615 | ; System function to work with network devices (74) |
3545 | hidnplayr | 616 | ; |
617 | ;---------------------------------------------------------------- |
||
618 | align 4 |
||
3601 | hidnplayr | 619 | sys_network: |
3545 | hidnplayr | 620 | |
3879 | hidnplayr | 621 | cmp bl, 255 |
3545 | hidnplayr | 622 | jne @f |
623 | |||
624 | mov eax, [NET_RUNNING] |
||
3601 | hidnplayr | 625 | mov [esp+32], eax |
626 | ret |
||
3545 | hidnplayr | 627 | |
628 | @@: |
||
3600 | hidnplayr | 629 | cmp bh, NET_DEVICES_MAX ; Check if device number exists |
3545 | hidnplayr | 630 | jae .doesnt_exist |
631 | |||
632 | mov esi, ebx |
||
633 | and esi, 0x0000ff00 |
||
634 | shr esi, 6 |
||
635 | |||
636 | cmp dword [esi + NET_DRV_LIST], 0 ; check if driver is running |
||
637 | je .doesnt_exist |
||
638 | |||
639 | mov eax, [esi + NET_DRV_LIST] |
||
640 | |||
641 | and ebx, 0x000000ff |
||
642 | cmp ebx, .number |
||
643 | ja .doesnt_exist |
||
644 | jmp dword [.table + 4*ebx] |
||
645 | |||
646 | .table: |
||
647 | dd .get_type ; 0 |
||
648 | dd .get_dev_name ; 1 |
||
649 | dd .reset ; 2 |
||
650 | dd .stop ; 3 |
||
651 | dd .get_ptr ; 4 |
||
652 | dd .get_drv_name ; 5 |
||
3601 | hidnplayr | 653 | |
654 | dd .packets_tx ; 6 |
||
655 | dd .packets_rx ; 7 |
||
656 | dd .bytes_tx ; 8 |
||
657 | dd .bytes_rx ; 9 |
||
658 | dd .state ; 10 |
||
3545 | hidnplayr | 659 | .number = ($ - .table) / 4 - 1 |
660 | |||
3601 | hidnplayr | 661 | .get_type: |
3600 | hidnplayr | 662 | mov eax, [eax + NET_DEVICE.device_type] |
3601 | hidnplayr | 663 | mov [esp+32], eax |
664 | ret |
||
3545 | hidnplayr | 665 | |
3601 | hidnplayr | 666 | .get_dev_name: |
3545 | hidnplayr | 667 | mov esi, [eax + NET_DEVICE.name] |
668 | mov edi, ecx |
||
669 | |||
670 | mov ecx, 64/4 ; max length |
||
3711 | clevermous | 671 | rep movsd |
3545 | hidnplayr | 672 | |
673 | xor eax, eax |
||
3601 | hidnplayr | 674 | mov [esp+32], eax |
675 | ret |
||
3545 | hidnplayr | 676 | |
3601 | hidnplayr | 677 | .reset: |
3545 | hidnplayr | 678 | call [eax + NET_DEVICE.reset] |
3601 | hidnplayr | 679 | mov [esp+32], eax |
680 | ret |
||
3545 | hidnplayr | 681 | |
3601 | hidnplayr | 682 | .stop: |
3545 | hidnplayr | 683 | call [eax + NET_DEVICE.unload] |
3601 | hidnplayr | 684 | mov [esp+32], eax |
685 | ret |
||
3545 | hidnplayr | 686 | |
687 | |||
3601 | hidnplayr | 688 | .get_ptr: |
689 | mov [esp+32], eax |
||
690 | ret |
||
3545 | hidnplayr | 691 | |
692 | |||
3601 | hidnplayr | 693 | .get_drv_name: |
694 | xor eax, eax |
||
695 | mov [esp+32], eax |
||
696 | ret |
||
3545 | hidnplayr | 697 | |
3601 | hidnplayr | 698 | .packets_tx: |
699 | mov eax, [eax + NET_DEVICE.packets_tx] |
||
700 | mov [esp+32], eax |
||
701 | ret |
||
3545 | hidnplayr | 702 | |
3601 | hidnplayr | 703 | .packets_rx: |
704 | mov eax, [eax + NET_DEVICE.packets_rx] |
||
705 | mov [esp+32], eax |
||
706 | ret |
||
3545 | hidnplayr | 707 | |
3601 | hidnplayr | 708 | .bytes_tx: |
709 | mov ebx, dword [eax + NET_DEVICE.bytes_tx + 4] |
||
710 | mov [esp+20], ebx |
||
711 | mov eax, dword [eax + NET_DEVICE.bytes_tx] |
||
712 | mov [esp+32], eax |
||
713 | ret |
||
3545 | hidnplayr | 714 | |
3601 | hidnplayr | 715 | .bytes_rx: |
716 | mov ebx, dword [eax + NET_DEVICE.bytes_rx + 4] |
||
717 | mov [esp+20], ebx |
||
718 | mov eax, dword [eax + NET_DEVICE.bytes_rx] |
||
719 | mov [esp+32], eax |
||
720 | ret |
||
3545 | hidnplayr | 721 | |
3601 | hidnplayr | 722 | .state: |
723 | mov eax, [eax + NET_DEVICE.link_state] |
||
3545 | hidnplayr | 724 | mov [esp+32], eax |
725 | ret |
||
726 | |||
727 | |||
3601 | hidnplayr | 728 | .doesnt_exist: |
729 | mov dword[esp+32], -1 |
||
730 | ret |
||
731 | |||
732 | |||
733 | |||
3545 | hidnplayr | 734 | ;---------------------------------------------------------------- |
735 | ; |
||
736 | ; System function to work with protocols (76) |
||
737 | ; |
||
738 | ;---------------------------------------------------------------- |
||
739 | align 4 |
||
740 | sys_protocols: |
||
3600 | hidnplayr | 741 | cmp bh, NET_DEVICES_MAX ; Check if device number exists |
3545 | hidnplayr | 742 | jae .doesnt_exist |
743 | |||
744 | mov esi, ebx |
||
745 | and esi, 0x0000ff00 |
||
746 | shr esi, 6 ; now we have the device num * 4 in esi |
||
747 | cmp [esi + NET_DRV_LIST], 0 ; check if driver is running |
||
748 | je .doesnt_exist |
||
749 | |||
750 | push .return ; return address (we will be using jumps instead of calls) |
||
751 | |||
752 | mov eax, ebx ; set ax to protocol number |
||
753 | shr eax, 16 ; |
||
754 | |||
755 | cmp ax, API_ETH |
||
756 | je ETH_api |
||
757 | |||
758 | cmp ax, API_IPv4 |
||
759 | je IPv4_api |
||
760 | |||
761 | cmp ax, API_ICMP |
||
762 | je ICMP_api |
||
763 | |||
764 | cmp ax, API_UDP |
||
765 | je UDP_api |
||
766 | |||
767 | cmp ax, API_TCP |
||
768 | je TCP_api |
||
769 | |||
770 | cmp ax, API_ARP |
||
771 | je ARP_api |
||
772 | |||
773 | cmp ax, API_PPPOE |
||
774 | je PPPoE_api |
||
775 | |||
776 | cmp ax, API_IPv6 |
||
777 | je IPv6_api |
||
778 | |||
779 | add esp, 4 ; if we reached here, no function was called, so we need to balance stack |
||
780 | |||
781 | .doesnt_exist: |
||
782 | mov eax, -1 |
||
783 | |||
784 | .return: |
||
785 | mov [esp+28+4], eax ; return eax value to the program |
||
786 | ret |