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