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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 | |||
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 | |
3982 | hidnplayr | 251 | ETH_init |
252 | |||
3545 | hidnplayr | 253 | PPPoE_init |
254 | |||
255 | IPv4_init |
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256 | ; IPv6_init |
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257 | ICMP_init |
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258 | |||
259 | ARP_init |
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260 | UDP_init |
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261 | TCP_init |
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262 | |||
263 | SOCKET_init |
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264 | |||
3601 | hidnplayr | 265 | LOOP_init |
266 | |||
3545 | hidnplayr | 267 | mov [net_tmr_count], 0 |
268 | |||
269 | ret |
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270 | |||
271 | |||
272 | |||
273 | ; Wakeup every tick. |
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274 | proc stack_handler_has_work? |
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275 | |||
3711 | clevermous | 276 | mov eax, [timer_ticks] |
277 | cmp eax, [net_10ms] |
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3545 | hidnplayr | 278 | |
279 | ret |
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280 | endp |
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281 | |||
282 | |||
283 | ;----------------------------------------------------------------- |
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284 | ; |
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285 | ; stack_handler |
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286 | ; |
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287 | ; This function is called in kernel loop |
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288 | ; |
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289 | ; IN: / |
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290 | ; OUT: / |
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291 | ; |
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292 | ;----------------------------------------------------------------- |
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293 | align 4 |
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294 | stack_handler: |
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295 | |||
296 | ; Test for 10ms tick |
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297 | mov eax, [timer_ticks] |
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298 | cmp eax, [net_10ms] |
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299 | je .exit |
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300 | mov [net_10ms], eax |
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301 | |||
302 | cmp [NET_RUNNING], 0 |
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303 | je .exit |
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304 | |||
305 | test [net_10ms], 0x0f ; 160ms |
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306 | jnz .exit |
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307 | |||
308 | TCP_timer_160ms |
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309 | |||
310 | test [net_10ms], 0x3f ; 640ms |
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311 | jnz .exit |
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312 | |||
313 | TCP_timer_640ms |
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314 | ARP_decrease_entry_ttls |
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315 | IPv4_decrease_fragment_ttls |
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316 | |||
317 | .exit: |
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318 | ret |
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319 | |||
320 | |||
3861 | hidnplayr | 321 | align 4 |
322 | NET_packet_free: |
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323 | and dword[esp+4], not 0xfff |
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324 | jmp kernel_free |
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3545 | hidnplayr | 325 | |
3861 | hidnplayr | 326 | |
3545 | hidnplayr | 327 | align 4 |
328 | NET_link_changed: |
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329 | |||
3601 | hidnplayr | 330 | DEBUGF DEBUG_NETWORK_VERBOSE, "NET_link_changed device=0x%x status=0x%x\n", ebx, [ebx + NET_DEVICE.link_state] |
3545 | hidnplayr | 331 | |
332 | align 4 |
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333 | NET_send_event: |
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334 | |||
3556 | hidnplayr | 335 | DEBUGF DEBUG_NETWORK_VERBOSE, "NET_send_event\n" |
3545 | hidnplayr | 336 | |
337 | ; Send event to all applications |
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338 | push edi ecx |
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339 | mov edi, SLOT_BASE |
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340 | mov ecx, [TASK_COUNT] |
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341 | .loop: |
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342 | add edi, 256 |
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343 | or [edi + APPDATA.event_mask], EVENT_NETWORK2 |
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344 | loop .loop |
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345 | pop ecx edi |
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346 | |||
347 | ret |
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348 | |||
349 | |||
350 | |||
351 | ;----------------------------------------------------------------- |
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352 | ; |
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353 | ; NET_add_device: |
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354 | ; |
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355 | ; This function is called by the network drivers, |
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356 | ; to register each running NIC to the kernel |
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357 | ; |
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358 | ; IN: Pointer to device structure in ebx |
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359 | ; OUT: Device num in eax, -1 on error |
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360 | ; |
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361 | ;----------------------------------------------------------------- |
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362 | align 4 |
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363 | NET_add_device: |
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364 | |||
3556 | hidnplayr | 365 | DEBUGF DEBUG_NETWORK_VERBOSE, "NET_Add_Device: %x\n", ebx ;;; TODO: use mutex to lock net device list |
3545 | hidnplayr | 366 | |
3600 | hidnplayr | 367 | cmp [NET_RUNNING], NET_DEVICES_MAX |
3545 | hidnplayr | 368 | jae .error |
369 | |||
370 | ;---------------------------------- |
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371 | ; Check if device is already listed |
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372 | mov eax, ebx |
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3600 | hidnplayr | 373 | mov ecx, NET_DEVICES_MAX ; We need to check whole list because a device may be removed without re-organizing list |
3545 | hidnplayr | 374 | mov edi, NET_DRV_LIST |
375 | |||
3711 | clevermous | 376 | repne scasd ; See if device is already in the list |
3545 | hidnplayr | 377 | jz .error |
378 | |||
379 | ;---------------------------- |
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380 | ; Find empty slot in the list |
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381 | xor eax, eax |
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3600 | hidnplayr | 382 | mov ecx, NET_DEVICES_MAX |
3545 | hidnplayr | 383 | mov edi, NET_DRV_LIST |
384 | |||
3711 | clevermous | 385 | repne scasd |
3545 | hidnplayr | 386 | jnz .error |
387 | |||
388 | sub edi, 4 |
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389 | |||
390 | ;----------------------------- |
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391 | ; Add device to the found slot |
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392 | mov [edi], ebx ; add device to list |
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393 | |||
394 | mov eax, edi ; Calculate device number in eax |
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395 | sub eax, NET_DRV_LIST |
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396 | shr eax, 2 |
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397 | |||
398 | inc [NET_RUNNING] ; Indicate that one more network device is up and running |
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399 | |||
400 | call NET_send_event |
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401 | |||
3556 | hidnplayr | 402 | DEBUGF DEBUG_NETWORK_VERBOSE, "Device number: %u\n", eax |
3545 | hidnplayr | 403 | ret |
404 | |||
405 | .error: |
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406 | or eax, -1 |
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3556 | hidnplayr | 407 | DEBUGF DEBUG_NETWORK_ERROR, "Adding network device failed\n" |
3545 | hidnplayr | 408 | ret |
409 | |||
410 | |||
411 | |||
412 | ;----------------------------------------------------------------- |
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413 | ; |
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414 | ; NET_Remove_Device: |
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415 | ; |
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3601 | hidnplayr | 416 | ; This function is called by network drivers, |
3545 | hidnplayr | 417 | ; to unregister network devices from the kernel |
418 | ; |
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419 | ; IN: Pointer to device structure in ebx |
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420 | ; OUT: eax: -1 on error |
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421 | ; |
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422 | ;----------------------------------------------------------------- |
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423 | align 4 |
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424 | NET_remove_device: |
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425 | |||
426 | cmp [NET_RUNNING], 0 |
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427 | je .error |
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428 | |||
429 | ;---------------------------- |
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430 | ; Find the driver in the list |
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431 | |||
432 | mov eax, ebx |
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3600 | hidnplayr | 433 | mov ecx, NET_DEVICES_MAX |
3601 | hidnplayr | 434 | mov edi, NET_DRV_LIST |
3545 | hidnplayr | 435 | |
3711 | clevermous | 436 | repne scasd |
3545 | hidnplayr | 437 | jnz .error |
438 | |||
439 | ;------------------------ |
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440 | ; Remove it from the list |
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441 | |||
442 | xor eax, eax |
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443 | mov dword [edi-4], eax |
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3601 | hidnplayr | 444 | dec [NET_RUNNING] |
3545 | hidnplayr | 445 | |
446 | call NET_send_event |
||
447 | |||
3601 | hidnplayr | 448 | xor eax, eax |
3545 | hidnplayr | 449 | ret |
450 | |||
451 | .error: |
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452 | or eax, -1 |
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453 | ret |
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454 | |||
455 | |||
456 | |||
457 | ;----------------------------------------------------------------- |
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458 | ; |
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459 | ; NET_ptr_to_num |
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460 | ; |
||
461 | ; IN: ebx = ptr to device struct |
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462 | ; OUT: edi = -1 on error, device number otherwise |
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463 | ; |
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464 | ;----------------------------------------------------------------- |
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465 | align 4 |
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466 | NET_ptr_to_num: |
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3643 | hidnplayr | 467 | |
468 | call NET_ptr_to_num4 |
||
469 | ror edi, 2 ; If -1, stay -1 |
||
470 | ; valid device numbers have last two bits 0, so do just shr |
||
471 | |||
472 | ret |
||
473 | |||
474 | align 4 |
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475 | NET_ptr_to_num4: ; Todo, place number in device structure so we only need to verify? |
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476 | |||
3545 | hidnplayr | 477 | push ecx |
478 | |||
3600 | hidnplayr | 479 | mov ecx, NET_DEVICES_MAX |
3545 | hidnplayr | 480 | mov edi, NET_DRV_LIST |
481 | .loop: |
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482 | cmp ebx, [edi] |
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3643 | hidnplayr | 483 | je .found |
3545 | hidnplayr | 484 | add edi, 4 |
485 | dec ecx |
||
486 | jnz .loop |
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487 | |||
488 | or edi, -1 |
||
489 | pop ecx |
||
490 | ret |
||
491 | |||
492 | .found: |
||
493 | sub edi, NET_DRV_LIST |
||
494 | pop ecx |
||
495 | ret |
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496 | |||
497 | ;----------------------------------------------------------------- |
||
498 | ; |
||
499 | ; checksum_1 |
||
500 | ; |
||
501 | ; This is the first of two functions needed to calculate a checksum. |
||
502 | ; |
||
503 | ; IN: edx = start offset for semi-checksum |
||
504 | ; esi = pointer to data |
||
505 | ; ecx = data size |
||
506 | ; OUT: edx = semi-checksum |
||
507 | ; |
||
508 | ; |
||
509 | ; Code was optimized by diamond |
||
510 | ; |
||
511 | ;----------------------------------------------------------------- |
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512 | align 4 |
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513 | checksum_1: |
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514 | |||
515 | shr ecx, 1 |
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516 | pushf |
||
517 | jz .no_2 |
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518 | |||
519 | shr ecx, 1 |
||
520 | pushf |
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521 | jz .no_4 |
||
522 | |||
523 | shr ecx, 1 |
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524 | pushf |
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525 | jz .no_8 |
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526 | |||
527 | .loop: |
||
528 | add dl, [esi+1] |
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529 | adc dh, [esi+0] |
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530 | |||
531 | adc dl, [esi+3] |
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532 | adc dh, [esi+2] |
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533 | |||
534 | adc dl, [esi+5] |
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535 | adc dh, [esi+4] |
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536 | |||
537 | adc dl, [esi+7] |
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538 | adc dh, [esi+6] |
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539 | |||
540 | adc edx, 0 |
||
541 | add esi, 8 |
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542 | |||
543 | dec ecx |
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544 | jnz .loop |
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545 | |||
546 | adc edx, 0 |
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547 | |||
548 | .no_8: |
||
549 | popf |
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550 | jnc .no_4 |
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551 | |||
552 | add dl, [esi+1] |
||
553 | adc dh, [esi+0] |
||
554 | |||
555 | adc dl, [esi+3] |
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556 | adc dh, [esi+2] |
||
557 | |||
558 | adc edx, 0 |
||
559 | add esi, 4 |
||
560 | |||
561 | .no_4: |
||
562 | popf |
||
563 | jnc .no_2 |
||
564 | |||
565 | add dl, [esi+1] |
||
566 | adc dh, [esi+0] |
||
567 | |||
568 | adc edx, 0 |
||
569 | inc esi |
||
570 | inc esi |
||
571 | |||
572 | .no_2: |
||
573 | popf |
||
574 | jnc .end |
||
575 | |||
576 | add dh, [esi+0] |
||
577 | adc edx, 0 |
||
578 | .end: |
||
579 | ret |
||
580 | |||
581 | ;----------------------------------------------------------------- |
||
582 | ; |
||
583 | ; checksum_2 |
||
584 | ; |
||
585 | ; This function calculates the final ip/tcp/udp checksum for you |
||
586 | ; |
||
587 | ; IN: edx = semi-checksum |
||
588 | ; OUT: dx = checksum (in INET byte order) |
||
589 | ; |
||
590 | ;----------------------------------------------------------------- |
||
591 | align 4 |
||
592 | checksum_2: |
||
593 | |||
594 | mov ecx, edx |
||
595 | shr ecx, 16 |
||
596 | and edx, 0xffff |
||
597 | add edx, ecx |
||
598 | |||
599 | mov ecx, edx |
||
600 | shr ecx, 16 |
||
601 | add dx, cx |
||
602 | test dx, dx ; it seems that ZF is not set when CF is set :( |
||
603 | not dx |
||
604 | jnz .not_zero |
||
605 | dec dx |
||
606 | .not_zero: |
||
607 | xchg dl, dh |
||
608 | |||
3556 | hidnplayr | 609 | DEBUGF DEBUG_NETWORK_VERBOSE, "Checksum: %x\n", dx |
3545 | hidnplayr | 610 | |
611 | ret |
||
612 | |||
613 | |||
614 | |||
615 | ;---------------------------------------------------------------- |
||
616 | ; |
||
3601 | hidnplayr | 617 | ; System function to work with network devices (74) |
3545 | hidnplayr | 618 | ; |
619 | ;---------------------------------------------------------------- |
||
620 | align 4 |
||
3601 | hidnplayr | 621 | sys_network: |
3545 | hidnplayr | 622 | |
3879 | hidnplayr | 623 | cmp bl, 255 |
3545 | hidnplayr | 624 | jne @f |
625 | |||
626 | mov eax, [NET_RUNNING] |
||
3601 | hidnplayr | 627 | mov [esp+32], eax |
628 | ret |
||
3545 | hidnplayr | 629 | |
630 | @@: |
||
3600 | hidnplayr | 631 | cmp bh, NET_DEVICES_MAX ; Check if device number exists |
3545 | hidnplayr | 632 | jae .doesnt_exist |
633 | |||
634 | mov esi, ebx |
||
635 | and esi, 0x0000ff00 |
||
636 | shr esi, 6 |
||
637 | |||
638 | cmp dword [esi + NET_DRV_LIST], 0 ; check if driver is running |
||
639 | je .doesnt_exist |
||
640 | |||
641 | mov eax, [esi + NET_DRV_LIST] |
||
642 | |||
643 | and ebx, 0x000000ff |
||
644 | cmp ebx, .number |
||
645 | ja .doesnt_exist |
||
646 | jmp dword [.table + 4*ebx] |
||
647 | |||
648 | .table: |
||
649 | dd .get_type ; 0 |
||
650 | dd .get_dev_name ; 1 |
||
651 | dd .reset ; 2 |
||
652 | dd .stop ; 3 |
||
653 | dd .get_ptr ; 4 |
||
654 | dd .get_drv_name ; 5 |
||
3601 | hidnplayr | 655 | |
656 | dd .packets_tx ; 6 |
||
657 | dd .packets_rx ; 7 |
||
658 | dd .bytes_tx ; 8 |
||
659 | dd .bytes_rx ; 9 |
||
660 | dd .state ; 10 |
||
3545 | hidnplayr | 661 | .number = ($ - .table) / 4 - 1 |
662 | |||
3601 | hidnplayr | 663 | .get_type: |
3600 | hidnplayr | 664 | mov eax, [eax + NET_DEVICE.device_type] |
3601 | hidnplayr | 665 | mov [esp+32], eax |
666 | ret |
||
3545 | hidnplayr | 667 | |
3601 | hidnplayr | 668 | .get_dev_name: |
3545 | hidnplayr | 669 | mov esi, [eax + NET_DEVICE.name] |
670 | mov edi, ecx |
||
671 | |||
672 | mov ecx, 64/4 ; max length |
||
3711 | clevermous | 673 | rep movsd |
3545 | hidnplayr | 674 | |
675 | xor eax, eax |
||
3601 | hidnplayr | 676 | mov [esp+32], eax |
677 | ret |
||
3545 | hidnplayr | 678 | |
3601 | hidnplayr | 679 | .reset: |
3545 | hidnplayr | 680 | call [eax + NET_DEVICE.reset] |
3601 | hidnplayr | 681 | mov [esp+32], eax |
682 | ret |
||
3545 | hidnplayr | 683 | |
3601 | hidnplayr | 684 | .stop: |
3545 | hidnplayr | 685 | call [eax + NET_DEVICE.unload] |
3601 | hidnplayr | 686 | mov [esp+32], eax |
687 | ret |
||
3545 | hidnplayr | 688 | |
689 | |||
3601 | hidnplayr | 690 | .get_ptr: |
691 | mov [esp+32], eax |
||
692 | ret |
||
3545 | hidnplayr | 693 | |
694 | |||
3601 | hidnplayr | 695 | .get_drv_name: |
696 | xor eax, eax |
||
697 | mov [esp+32], eax |
||
698 | ret |
||
3545 | hidnplayr | 699 | |
3601 | hidnplayr | 700 | .packets_tx: |
701 | mov eax, [eax + NET_DEVICE.packets_tx] |
||
702 | mov [esp+32], eax |
||
703 | ret |
||
3545 | hidnplayr | 704 | |
3601 | hidnplayr | 705 | .packets_rx: |
706 | mov eax, [eax + NET_DEVICE.packets_rx] |
||
707 | mov [esp+32], eax |
||
708 | ret |
||
3545 | hidnplayr | 709 | |
3601 | hidnplayr | 710 | .bytes_tx: |
711 | mov ebx, dword [eax + NET_DEVICE.bytes_tx + 4] |
||
712 | mov [esp+20], ebx |
||
713 | mov eax, dword [eax + NET_DEVICE.bytes_tx] |
||
714 | mov [esp+32], eax |
||
715 | ret |
||
3545 | hidnplayr | 716 | |
3601 | hidnplayr | 717 | .bytes_rx: |
718 | mov ebx, dword [eax + NET_DEVICE.bytes_rx + 4] |
||
719 | mov [esp+20], ebx |
||
720 | mov eax, dword [eax + NET_DEVICE.bytes_rx] |
||
721 | mov [esp+32], eax |
||
722 | ret |
||
3545 | hidnplayr | 723 | |
3601 | hidnplayr | 724 | .state: |
725 | mov eax, [eax + NET_DEVICE.link_state] |
||
3545 | hidnplayr | 726 | mov [esp+32], eax |
727 | ret |
||
728 | |||
729 | |||
3601 | hidnplayr | 730 | .doesnt_exist: |
731 | mov dword[esp+32], -1 |
||
732 | ret |
||
733 | |||
734 | |||
735 | |||
3545 | hidnplayr | 736 | ;---------------------------------------------------------------- |
737 | ; |
||
738 | ; System function to work with protocols (76) |
||
739 | ; |
||
740 | ;---------------------------------------------------------------- |
||
741 | align 4 |
||
742 | sys_protocols: |
||
3600 | hidnplayr | 743 | cmp bh, NET_DEVICES_MAX ; Check if device number exists |
3545 | hidnplayr | 744 | jae .doesnt_exist |
745 | |||
746 | mov esi, ebx |
||
747 | and esi, 0x0000ff00 |
||
748 | shr esi, 6 ; now we have the device num * 4 in esi |
||
749 | cmp [esi + NET_DRV_LIST], 0 ; check if driver is running |
||
750 | je .doesnt_exist |
||
751 | |||
752 | push .return ; return address (we will be using jumps instead of calls) |
||
753 | |||
754 | mov eax, ebx ; set ax to protocol number |
||
755 | shr eax, 16 ; |
||
756 | |||
757 | cmp ax, API_ETH |
||
758 | je ETH_api |
||
759 | |||
760 | cmp ax, API_IPv4 |
||
761 | je IPv4_api |
||
762 | |||
763 | cmp ax, API_ICMP |
||
764 | je ICMP_api |
||
765 | |||
766 | cmp ax, API_UDP |
||
767 | je UDP_api |
||
768 | |||
769 | cmp ax, API_TCP |
||
770 | je TCP_api |
||
771 | |||
772 | cmp ax, API_ARP |
||
773 | je ARP_api |
||
774 | |||
775 | cmp ax, API_PPPOE |
||
776 | je PPPoE_api |
||
777 | |||
778 | cmp ax, API_IPv6 |
||
779 | je IPv6_api |
||
780 | |||
781 | add esp, 4 ; if we reached here, no function was called, so we need to balance stack |
||
782 | |||
783 | .doesnt_exist: |
||
784 | mov eax, -1 |
||
785 | |||
786 | .return: |
||
787 | mov [esp+28+4], eax ; return eax value to the program |
||
788 | ret |