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Rev | Author | Line No. | Line |
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3545 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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5363 | yogev_ezra | 3 | ;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;; |
3545 | hidnplayr | 4 | ;; Distributed under terms of the GNU General Public License ;; |
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 | |||
4850 | mario79 | 24 | $Revision: 6011 $ |
3545 | hidnplayr | 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 |
4388 | hidnplayr | 32 | DEBUG_NETWORK_VERBOSE = 0 |
3556 | hidnplayr | 33 | |
3600 | hidnplayr | 34 | NET_DEVICES_MAX = 16 |
5528 | hidnplayr | 35 | NET_BUFFERS = 512 |
36 | NET_BUFFER_SIZE = 2048 |
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3545 | hidnplayr | 37 | ARP_BLOCK = 1 ; true or false |
38 | |||
3600 | hidnplayr | 39 | EPHEMERAL_PORT_MIN = 49152 |
40 | EPHEMERAL_PORT_MAX = 61000 |
||
3545 | hidnplayr | 41 | MIN_EPHEMERAL_PORT_N = 0x00C0 ; same in Network byte order (FIXME) |
42 | MAX_EPHEMERAL_PORT_N = 0x48EE ; same in Network byte order (FIXME) |
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43 | |||
44 | ; Ethernet protocol numbers |
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3600 | hidnplayr | 45 | ETHER_PROTO_ARP = 0x0608 |
46 | ETHER_PROTO_IPv4 = 0x0008 |
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47 | ETHER_PROTO_IPv6 = 0xDD86 |
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48 | ETHER_PROTO_PPP_DISCOVERY = 0x6388 |
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49 | ETHER_PROTO_PPP_SESSION = 0x6488 |
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3545 | hidnplayr | 50 | |
3600 | hidnplayr | 51 | ; Internet protocol numbers |
52 | IP_PROTO_IP = 0 |
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53 | IP_PROTO_ICMP = 1 |
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54 | IP_PROTO_TCP = 6 |
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55 | IP_PROTO_UDP = 17 |
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5842 | hidnplayr | 56 | IP_PROTO_RAW = 255 |
3600 | hidnplayr | 57 | |
5842 | hidnplayr | 58 | ; IP options |
59 | IP_TOS = 1 |
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60 | IP_TTL = 2 |
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61 | IP_HDRINCL = 3 |
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62 | |||
3545 | hidnplayr | 63 | ; PPP protocol numbers |
3600 | hidnplayr | 64 | PPP_PROTO_IPv4 = 0x2100 |
65 | PPP_PROTO_IPV6 = 0x5780 |
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66 | PPP_PROTO_ETHERNET = 666 ; FIXME |
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3545 | hidnplayr | 67 | |
68 | ;Protocol family |
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69 | AF_UNSPEC = 0 |
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70 | AF_LOCAL = 1 |
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71 | AF_INET4 = 2 |
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72 | AF_INET6 = 10 |
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3600 | hidnplayr | 73 | AF_PPP = 777 ; FIXME |
3545 | hidnplayr | 74 | |
75 | ; Socket types |
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76 | SOCK_STREAM = 1 |
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77 | SOCK_DGRAM = 2 |
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78 | SOCK_RAW = 3 |
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79 | |||
5842 | hidnplayr | 80 | ; Socket level |
81 | SOL_SOCKET = 0xffff |
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82 | |||
3545 | hidnplayr | 83 | ; Socket options |
84 | SO_ACCEPTCON = 1 shl 0 |
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85 | SO_BROADCAST = 1 shl 1 |
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86 | SO_DEBUG = 1 shl 2 |
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87 | SO_DONTROUTE = 1 shl 3 |
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88 | SO_KEEPALIVE = 1 shl 4 |
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89 | SO_OOBINLINE = 1 shl 5 |
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90 | SO_REUSEADDR = 1 shl 6 |
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91 | SO_REUSEPORT = 1 shl 7 |
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92 | SO_USELOOPBACK = 1 shl 8 |
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93 | SO_BINDTODEVICE = 1 shl 9 |
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94 | |||
95 | SO_NONBLOCK = 1 shl 31 |
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96 | |||
97 | ; Socket flags for user calls |
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98 | MSG_PEEK = 0x02 |
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99 | MSG_DONTWAIT = 0x40 |
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100 | |||
101 | ; Socket States |
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3600 | hidnplayr | 102 | SS_NOFDREF = 0x0001 ; no file table ref any more |
103 | SS_ISCONNECTED = 0x0002 ; socket connected to a peer |
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104 | SS_ISCONNECTING = 0x0004 ; in process of connecting to peer |
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105 | SS_ISDISCONNECTING = 0x0008 ; in process of disconnecting |
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106 | SS_CANTSENDMORE = 0x0010 ; can't send more data to peer |
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107 | SS_CANTRCVMORE = 0x0020 ; can't receive more data from peer |
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108 | SS_RCVATMARK = 0x0040 ; at mark on input |
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109 | SS_ISABORTING = 0x0080 ; aborting fd references - close() |
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110 | SS_RESTARTSYS = 0x0100 ; restart blocked system calls |
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111 | SS_ISDISCONNECTED = 0x0800 ; socket disconnected from peer |
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3545 | hidnplayr | 112 | |
3674 | hidnplayr | 113 | SS_ASYNC = 0x1000 ; async i/o notify |
114 | SS_ISCONFIRMING = 0x2000 ; deciding to accept connection req |
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115 | SS_MORETOCOME = 0x4000 |
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3545 | hidnplayr | 116 | |
117 | SS_BLOCKED = 0x8000 |
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118 | |||
119 | |||
4959 | hidnplayr | 120 | SOCKET_MAXDATA = 4096*64 ; must be 4096*(power of 2) where 'power of 2' is at least 8 |
3600 | hidnplayr | 121 | MAX_backlog = 20 ; maximum backlog for stream sockets |
3545 | hidnplayr | 122 | |
123 | ; Error Codes |
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3674 | hidnplayr | 124 | ENOBUFS = 1 |
4025 | hidnplayr | 125 | EINPROGRESS = 2 |
3674 | hidnplayr | 126 | EOPNOTSUPP = 4 |
127 | EWOULDBLOCK = 6 |
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128 | ENOTCONN = 9 |
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129 | EALREADY = 10 |
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130 | EINVAL = 11 |
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131 | EMSGSIZE = 12 |
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132 | ENOMEM = 18 |
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133 | EADDRINUSE = 20 |
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3545 | hidnplayr | 134 | ECONNREFUSED = 61 |
135 | ECONNRESET = 52 |
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4025 | hidnplayr | 136 | EISCONN = 56 |
3545 | hidnplayr | 137 | ETIMEDOUT = 60 |
138 | ECONNABORTED = 53 |
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139 | |||
140 | ; Api protocol numbers |
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141 | API_ETH = 0 |
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142 | API_IPv4 = 1 |
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143 | API_ICMP = 2 |
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144 | API_UDP = 3 |
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145 | API_TCP = 4 |
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146 | API_ARP = 5 |
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147 | API_PPPOE = 6 |
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148 | API_IPv6 = 7 |
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149 | |||
3600 | hidnplayr | 150 | ; Network device types |
151 | NET_DEVICE_LOOPBACK = 0 |
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152 | NET_DEVICE_ETH = 1 |
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153 | NET_DEVICE_SLIP = 2 |
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154 | |||
155 | ; Network link types (link protocols) |
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5528 | hidnplayr | 156 | NET_LINK_LOOPBACK = 0 |
3600 | hidnplayr | 157 | NET_LINK_MAC = 1 ; Media access control (ethernet, isdn, ...) |
158 | NET_LINK_PPP = 2 ; Point to Point Protocol (PPPoE, ...) |
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159 | NET_LINK_IEEE802.11 = 3 ; IEEE 802.11 (WiFi) |
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160 | |||
161 | ; Hardware acceleration bits |
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4387 | hidnplayr | 162 | NET_HWACC_TCP_IPv4_IN = 1 shl 0 |
163 | NET_HWACC_TCP_IPv4_OUT = 1 shl 1 |
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3545 | hidnplayr | 164 | |
5522 | hidnplayr | 165 | ; Network frame types |
6011 | hidnplayr | 166 | NET_BUFF_LOOPBACK = 0 |
167 | NET_BUFF_ETH = 1 |
||
5522 | hidnplayr | 168 | |
3545 | hidnplayr | 169 | struct NET_DEVICE |
170 | |||
3600 | hidnplayr | 171 | device_type dd ? ; Type field |
3545 | hidnplayr | 172 | mtu dd ? ; Maximal Transmission Unit |
173 | name dd ? ; Ptr to 0 terminated string |
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174 | |||
175 | unload dd ? ; Ptrs to driver functions |
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176 | reset dd ? ; |
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177 | transmit dd ? ; |
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178 | |||
179 | bytes_tx dq ? ; Statistics, updated by the driver |
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180 | bytes_rx dq ? ; |
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181 | packets_tx dd ? ; |
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182 | packets_rx dd ? ; |
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183 | |||
3600 | hidnplayr | 184 | link_state dd ? ; link state (0 = no link) |
3545 | hidnplayr | 185 | hwacc dd ? ; bitmask stating enabled HW accelerations (offload engines) |
186 | |||
187 | ends |
||
188 | |||
5522 | hidnplayr | 189 | struct NET_BUFF |
3545 | hidnplayr | 190 | |
5522 | hidnplayr | 191 | NextPtr dd ? ; pointer to next frame in list |
192 | PrevPtr dd ? ; pointer to previous frame in list |
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193 | device dd ? ; ptr to NET_DEVICE structure |
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194 | type dd ? ; encapsulation type: e.g. Ethernet |
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195 | length dd ? ; size of encapsulated data |
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196 | offset dd ? ; offset to actual data (24 bytes for default frame) |
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197 | data rb 0 |
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198 | |||
199 | ends |
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200 | |||
201 | |||
3545 | hidnplayr | 202 | ; Exactly as it says.. |
203 | macro pseudo_random reg { |
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204 | add reg, [esp] |
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205 | rol reg, 5 |
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206 | xor reg, [timer_ticks] |
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207 | ; add reg, [CPU_FREQ] |
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208 | imul reg, 214013 |
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209 | xor reg, 0xdeadbeef |
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210 | rol reg, 9 |
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211 | } |
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212 | |||
213 | ; Network to Hardware byte order (dword) |
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214 | macro ntohd reg { |
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215 | |||
216 | rol word reg, 8 |
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217 | rol dword reg, 16 |
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218 | rol word reg , 8 |
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219 | |||
220 | } |
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221 | |||
222 | ; Network to Hardware byte order (word) |
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223 | macro ntohw reg { |
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224 | |||
225 | rol word reg, 8 |
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226 | |||
227 | } |
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228 | |||
229 | |||
230 | include "queue.inc" |
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231 | |||
232 | include "loopback.inc" |
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233 | include "ethernet.inc" |
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234 | |||
235 | include "PPPoE.inc" |
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236 | |||
237 | include "ARP.inc" |
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238 | include "IPv4.inc" |
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239 | include "IPv6.inc" |
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240 | |||
241 | include "icmp.inc" |
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242 | include "udp.inc" |
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243 | include "tcp.inc" |
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244 | |||
245 | include "socket.inc" |
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246 | |||
247 | |||
248 | |||
3698 | hidnplayr | 249 | uglobal |
3545 | hidnplayr | 250 | align 4 |
251 | |||
5528 | hidnplayr | 252 | NET_RUNNING dd ? |
253 | NET_DRV_LIST rd NET_DEVICES_MAX |
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3545 | hidnplayr | 254 | |
5528 | hidnplayr | 255 | NET_BUFFS_FREE rd NET_BUFFERS |
256 | .current dd ? |
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257 | |||
3545 | hidnplayr | 258 | endg |
259 | |||
260 | |||
6011 | hidnplayr | 261 | ;-----------------------------------------------------------------; |
262 | ; ; |
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263 | ; stack_init: Initialize all network variables ; |
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264 | ; ; |
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265 | ; IN: / ; |
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266 | ; OUT: / ; |
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267 | ; ; |
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268 | ;-----------------------------------------------------------------; |
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3545 | hidnplayr | 269 | align 4 |
270 | stack_init: |
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271 | |||
5528 | hidnplayr | 272 | ; allocate network buffers |
273 | stdcall kernel_alloc, NET_BUFFER_SIZE*NET_BUFFERS |
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274 | test eax, eax |
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275 | jz .fail |
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276 | |||
277 | mov edi, NET_BUFFS_FREE |
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278 | mov ecx, NET_BUFFERS |
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279 | cld |
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280 | .loop: |
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281 | stosd |
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282 | add eax, NET_BUFFER_SIZE |
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283 | dec ecx |
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284 | jnz .loop |
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285 | |||
286 | mov eax, NET_BUFFS_FREE |
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287 | stosd |
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288 | |||
3545 | hidnplayr | 289 | ; Init the network drivers list |
290 | xor eax, eax |
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291 | mov edi, NET_RUNNING |
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5524 | hidnplayr | 292 | mov ecx, (NET_DEVICES_MAX + 1) |
3711 | clevermous | 293 | rep stosd |
3545 | hidnplayr | 294 | |
6011 | hidnplayr | 295 | eth_init |
3982 | hidnplayr | 296 | |
6011 | hidnplayr | 297 | pppoe_init |
3545 | hidnplayr | 298 | |
6011 | hidnplayr | 299 | ipv4_init |
300 | ; ipv6_init |
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301 | icmp_init |
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3545 | hidnplayr | 302 | |
6011 | hidnplayr | 303 | arp_init |
304 | udp_init |
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305 | tcp_init |
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3545 | hidnplayr | 306 | |
6011 | hidnplayr | 307 | socket_init |
3545 | hidnplayr | 308 | |
6011 | hidnplayr | 309 | loop_init |
3601 | hidnplayr | 310 | |
3545 | hidnplayr | 311 | mov [net_tmr_count], 0 |
5528 | hidnplayr | 312 | ret |
3545 | hidnplayr | 313 | |
5528 | hidnplayr | 314 | .fail: |
315 | DEBUGF DEBUG_NETWORK_ERROR, "Stack init failed!\n" |
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3545 | hidnplayr | 316 | ret |
317 | |||
318 | |||
319 | |||
320 | ; Wakeup every tick. |
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321 | proc stack_handler_has_work? |
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322 | |||
3711 | clevermous | 323 | mov eax, [timer_ticks] |
324 | cmp eax, [net_10ms] |
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3545 | hidnplayr | 325 | |
326 | ret |
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327 | endp |
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328 | |||
329 | |||
6011 | hidnplayr | 330 | ;-----------------------------------------------------------------; |
331 | ; ; |
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332 | ; stack_handler: Network handlers called from os_loop. ; |
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333 | ; ; |
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334 | ; IN: / ; |
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335 | ; OUT: / ; |
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336 | ; ; |
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337 | ;-----------------------------------------------------------------; |
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3545 | hidnplayr | 338 | align 4 |
339 | stack_handler: |
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340 | |||
341 | ; Test for 10ms tick |
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342 | mov eax, [timer_ticks] |
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343 | cmp eax, [net_10ms] |
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344 | je .exit |
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345 | mov [net_10ms], eax |
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346 | |||
347 | cmp [NET_RUNNING], 0 |
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348 | je .exit |
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349 | |||
350 | test [net_10ms], 0x0f ; 160ms |
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351 | jnz .exit |
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352 | |||
6011 | hidnplayr | 353 | tcp_timer_160ms |
3545 | hidnplayr | 354 | |
355 | test [net_10ms], 0x3f ; 640ms |
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356 | jnz .exit |
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357 | |||
6011 | hidnplayr | 358 | arp_decrease_entry_ttls |
359 | ipv4_decrease_fragment_ttls |
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3545 | hidnplayr | 360 | |
5013 | hidnplayr | 361 | xor edx, edx |
362 | mov eax, [TCP_timer1_event] |
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363 | mov ebx, [eax + EVENT.id] |
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364 | xor esi, esi |
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365 | call raise_event |
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366 | |||
3545 | hidnplayr | 367 | .exit: |
368 | ret |
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369 | |||
370 | |||
3861 | hidnplayr | 371 | align 4 |
6011 | hidnplayr | 372 | proc net_buff_alloc stdcall, buffersize |
373 | |||
5528 | hidnplayr | 374 | cmp [buffersize], NET_BUFFER_SIZE |
375 | ja .too_large |
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5522 | hidnplayr | 376 | |
5528 | hidnplayr | 377 | spin_lock_irqsave |
5522 | hidnplayr | 378 | |
5528 | hidnplayr | 379 | mov eax, [NET_BUFFS_FREE.current] |
380 | cmp eax, NET_BUFFS_FREE+NET_BUFFERS*4 |
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381 | jae .out_of_mem |
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382 | mov eax, [eax] |
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383 | add [NET_BUFFS_FREE.current], 4 |
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384 | |||
385 | spin_unlock_irqrestore |
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386 | |||
6011 | hidnplayr | 387 | DEBUGF DEBUG_NETWORK_VERBOSE, "net_buff_alloc: 0x%x\n", eax |
5528 | hidnplayr | 388 | ret |
389 | |||
390 | .out_of_mem: |
||
391 | spin_unlock_irqrestore |
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392 | |||
393 | xor eax, eax |
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6011 | hidnplayr | 394 | DEBUGF DEBUG_NETWORK_ERROR, "net_buff_alloc: out of mem!\n" |
5528 | hidnplayr | 395 | ret |
396 | |||
397 | .too_large: |
||
398 | xor eax, eax |
||
6011 | hidnplayr | 399 | DEBUGF DEBUG_NETWORK_ERROR, "net_buff_alloc: too large!\n" |
5528 | hidnplayr | 400 | ret |
401 | endp |
||
402 | |||
403 | |||
5522 | hidnplayr | 404 | align 4 |
6011 | hidnplayr | 405 | proc net_buff_free stdcall, buffer |
3545 | hidnplayr | 406 | |
6011 | hidnplayr | 407 | DEBUGF DEBUG_NETWORK_VERBOSE, "net_buff_free: 0x%x\n", [buffer] |
3861 | hidnplayr | 408 | |
5528 | hidnplayr | 409 | spin_lock_irqsave |
410 | |||
411 | sub [NET_BUFFS_FREE.current], 4 |
||
412 | mov eax, [NET_BUFFS_FREE.current] |
||
413 | push [buffer] |
||
414 | pop dword[eax] |
||
415 | |||
416 | spin_unlock_irqrestore |
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417 | |||
418 | ret |
||
419 | endp |
||
420 | |||
421 | |||
3545 | hidnplayr | 422 | align 4 |
6011 | hidnplayr | 423 | net_link_changed: |
3545 | hidnplayr | 424 | |
6011 | hidnplayr | 425 | DEBUGF DEBUG_NETWORK_VERBOSE, "net_link_changed device=0x%x status=0x%x\n", ebx, [ebx + NET_DEVICE.link_state] |
3545 | hidnplayr | 426 | |
427 | align 4 |
||
6011 | hidnplayr | 428 | net_send_event: |
3545 | hidnplayr | 429 | |
6011 | hidnplayr | 430 | DEBUGF DEBUG_NETWORK_VERBOSE, "net_send_event\n" |
3545 | hidnplayr | 431 | |
432 | ; Send event to all applications |
||
433 | push edi ecx |
||
434 | mov edi, SLOT_BASE |
||
435 | mov ecx, [TASK_COUNT] |
||
436 | .loop: |
||
437 | add edi, 256 |
||
438 | or [edi + APPDATA.event_mask], EVENT_NETWORK2 |
||
439 | loop .loop |
||
440 | pop ecx edi |
||
441 | |||
442 | ret |
||
443 | |||
444 | |||
445 | |||
6011 | hidnplayr | 446 | ;-----------------------------------------------------------------; |
447 | ; ; |
||
448 | ; net_add_device: Called by network driver to register interface. ; |
||
449 | ; ; |
||
450 | ; IN: ebx = ptr to device structure ; |
||
451 | ; ; |
||
452 | ; OUT: eax = device num on success ; |
||
453 | ; eax = -1 on error ; |
||
454 | ; ; |
||
455 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 456 | align 4 |
6011 | hidnplayr | 457 | net_add_device: |
3545 | hidnplayr | 458 | |
6011 | hidnplayr | 459 | DEBUGF DEBUG_NETWORK_VERBOSE, "net_add_device: %x\n", ebx ;;; TODO: use mutex to lock net device list |
3545 | hidnplayr | 460 | |
3600 | hidnplayr | 461 | cmp [NET_RUNNING], NET_DEVICES_MAX |
3545 | hidnplayr | 462 | jae .error |
463 | |||
464 | ;---------------------------------- |
||
465 | ; Check if device is already listed |
||
466 | mov eax, ebx |
||
3600 | hidnplayr | 467 | mov ecx, NET_DEVICES_MAX ; We need to check whole list because a device may be removed without re-organizing list |
3545 | hidnplayr | 468 | mov edi, NET_DRV_LIST |
469 | |||
3711 | clevermous | 470 | repne scasd ; See if device is already in the list |
3545 | hidnplayr | 471 | jz .error |
472 | |||
473 | ;---------------------------- |
||
474 | ; Find empty slot in the list |
||
475 | xor eax, eax |
||
3600 | hidnplayr | 476 | mov ecx, NET_DEVICES_MAX |
3545 | hidnplayr | 477 | mov edi, NET_DRV_LIST |
478 | |||
3711 | clevermous | 479 | repne scasd |
3545 | hidnplayr | 480 | jnz .error |
481 | |||
482 | sub edi, 4 |
||
483 | |||
484 | ;----------------------------- |
||
485 | ; Add device to the found slot |
||
486 | mov [edi], ebx ; add device to list |
||
487 | |||
488 | mov eax, edi ; Calculate device number in eax |
||
489 | sub eax, NET_DRV_LIST |
||
490 | shr eax, 2 |
||
491 | |||
492 | inc [NET_RUNNING] ; Indicate that one more network device is up and running |
||
493 | |||
6011 | hidnplayr | 494 | call net_send_event |
3545 | hidnplayr | 495 | |
3556 | hidnplayr | 496 | DEBUGF DEBUG_NETWORK_VERBOSE, "Device number: %u\n", eax |
3545 | hidnplayr | 497 | ret |
498 | |||
499 | .error: |
||
500 | or eax, -1 |
||
3556 | hidnplayr | 501 | DEBUGF DEBUG_NETWORK_ERROR, "Adding network device failed\n" |
3545 | hidnplayr | 502 | ret |
503 | |||
504 | |||
505 | |||
6011 | hidnplayr | 506 | ;-----------------------------------------------------------------; |
507 | ; ; |
||
508 | ; net_remove_device: Called by network driver to unregister dev. ; |
||
509 | ; ; |
||
510 | ; IN: ebx = ptr to device ; |
||
511 | ; ; |
||
512 | ; OUT: eax: -1 on error ; |
||
513 | ; ; |
||
514 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 515 | align 4 |
6011 | hidnplayr | 516 | net_remove_device: |
3545 | hidnplayr | 517 | |
518 | cmp [NET_RUNNING], 0 |
||
519 | je .error |
||
520 | |||
521 | ;---------------------------- |
||
522 | ; Find the driver in the list |
||
523 | |||
524 | mov eax, ebx |
||
3600 | hidnplayr | 525 | mov ecx, NET_DEVICES_MAX |
3601 | hidnplayr | 526 | mov edi, NET_DRV_LIST |
3545 | hidnplayr | 527 | |
3711 | clevermous | 528 | repne scasd |
3545 | hidnplayr | 529 | jnz .error |
530 | |||
531 | ;------------------------ |
||
532 | ; Remove it from the list |
||
533 | |||
534 | xor eax, eax |
||
535 | mov dword [edi-4], eax |
||
3601 | hidnplayr | 536 | dec [NET_RUNNING] |
3545 | hidnplayr | 537 | |
6011 | hidnplayr | 538 | call net_send_event |
3545 | hidnplayr | 539 | |
3601 | hidnplayr | 540 | xor eax, eax |
3545 | hidnplayr | 541 | ret |
542 | |||
543 | .error: |
||
544 | or eax, -1 |
||
545 | ret |
||
546 | |||
547 | |||
548 | |||
6011 | hidnplayr | 549 | ;-----------------------------------------------------------------; |
550 | ; ; |
||
551 | ; net_ptr_to_num ; |
||
552 | ; ; |
||
553 | ; IN: ebx = ptr to device struct ; |
||
554 | ; ; |
||
555 | ; OUT: edi = device number ; |
||
556 | ; edi = -1 on error ; |
||
557 | ; ; |
||
558 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 559 | align 4 |
6011 | hidnplayr | 560 | net_ptr_to_num: |
3643 | hidnplayr | 561 | |
6011 | hidnplayr | 562 | call net_ptr_to_num4 |
3643 | hidnplayr | 563 | ror edi, 2 ; If -1, stay -1 |
564 | ; valid device numbers have last two bits 0, so do just shr |
||
565 | |||
566 | ret |
||
567 | |||
568 | align 4 |
||
6011 | hidnplayr | 569 | net_ptr_to_num4: ; Todo, place number in device structure so we only need to verify? |
3643 | hidnplayr | 570 | |
5522 | hidnplayr | 571 | test ebx, ebx |
572 | jz .fail |
||
573 | |||
3545 | hidnplayr | 574 | push ecx |
3600 | hidnplayr | 575 | mov ecx, NET_DEVICES_MAX |
3545 | hidnplayr | 576 | mov edi, NET_DRV_LIST |
577 | .loop: |
||
578 | cmp ebx, [edi] |
||
3643 | hidnplayr | 579 | je .found |
3545 | hidnplayr | 580 | add edi, 4 |
581 | dec ecx |
||
582 | jnz .loop |
||
583 | |||
5522 | hidnplayr | 584 | pop ecx |
585 | .fail: |
||
3545 | hidnplayr | 586 | or edi, -1 |
587 | ret |
||
588 | |||
589 | .found: |
||
590 | sub edi, NET_DRV_LIST |
||
591 | pop ecx |
||
592 | ret |
||
593 | |||
6011 | hidnplayr | 594 | ;-----------------------------------------------------------------; |
595 | ; ; |
||
596 | ; checksum_1: Calculate semi-checksum for network packets. ; |
||
597 | ; ; |
||
598 | ; IN: edx = start offset for semi-checksum ; |
||
599 | ; esi = pointer to data ; |
||
600 | ; ecx = data size ; |
||
601 | ; ; |
||
602 | ; OUT: edx = semi-checksum ; |
||
603 | ; ; |
||
604 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 605 | align 4 |
606 | checksum_1: |
||
607 | |||
608 | shr ecx, 1 |
||
609 | pushf |
||
610 | jz .no_2 |
||
611 | |||
612 | shr ecx, 1 |
||
613 | pushf |
||
614 | jz .no_4 |
||
615 | |||
616 | shr ecx, 1 |
||
617 | pushf |
||
618 | jz .no_8 |
||
619 | |||
620 | .loop: |
||
621 | add dl, [esi+1] |
||
622 | adc dh, [esi+0] |
||
623 | |||
624 | adc dl, [esi+3] |
||
625 | adc dh, [esi+2] |
||
626 | |||
627 | adc dl, [esi+5] |
||
628 | adc dh, [esi+4] |
||
629 | |||
630 | adc dl, [esi+7] |
||
631 | adc dh, [esi+6] |
||
632 | |||
633 | adc edx, 0 |
||
634 | add esi, 8 |
||
635 | |||
636 | dec ecx |
||
637 | jnz .loop |
||
638 | |||
639 | adc edx, 0 |
||
640 | |||
641 | .no_8: |
||
642 | popf |
||
643 | jnc .no_4 |
||
644 | |||
645 | add dl, [esi+1] |
||
646 | adc dh, [esi+0] |
||
647 | |||
648 | adc dl, [esi+3] |
||
649 | adc dh, [esi+2] |
||
650 | |||
651 | adc edx, 0 |
||
652 | add esi, 4 |
||
653 | |||
654 | .no_4: |
||
655 | popf |
||
656 | jnc .no_2 |
||
657 | |||
658 | add dl, [esi+1] |
||
659 | adc dh, [esi+0] |
||
660 | |||
661 | adc edx, 0 |
||
662 | inc esi |
||
663 | inc esi |
||
664 | |||
665 | .no_2: |
||
666 | popf |
||
667 | jnc .end |
||
668 | |||
669 | add dh, [esi+0] |
||
670 | adc edx, 0 |
||
671 | .end: |
||
672 | ret |
||
673 | |||
6011 | hidnplayr | 674 | ;-----------------------------------------------------------------; |
675 | ; ; |
||
676 | ; checksum_2: Calculate the final ip/tcp/udp checksum. ; |
||
677 | ; ; |
||
678 | ; IN: edx = semi-checksum ; |
||
679 | ; ; |
||
680 | ; OUT: dx = checksum (in INET byte order) ; |
||
681 | ; ; |
||
682 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 683 | align 4 |
684 | checksum_2: |
||
685 | |||
686 | mov ecx, edx |
||
687 | shr ecx, 16 |
||
688 | and edx, 0xffff |
||
689 | add edx, ecx |
||
690 | |||
691 | mov ecx, edx |
||
692 | shr ecx, 16 |
||
693 | add dx, cx |
||
694 | test dx, dx ; it seems that ZF is not set when CF is set :( |
||
695 | not dx |
||
696 | jnz .not_zero |
||
697 | dec dx |
||
698 | .not_zero: |
||
699 | xchg dl, dh |
||
700 | |||
3556 | hidnplayr | 701 | DEBUGF DEBUG_NETWORK_VERBOSE, "Checksum: %x\n", dx |
3545 | hidnplayr | 702 | |
703 | ret |
||
704 | |||
705 | |||
706 | |||
6011 | hidnplayr | 707 | ;-----------------------------------------------------------------; |
708 | ; ; |
||
709 | ; System function 74: Low level access to network devices. ; |
||
710 | ; ; |
||
711 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 712 | align 4 |
3601 | hidnplayr | 713 | sys_network: |
3545 | hidnplayr | 714 | |
3879 | hidnplayr | 715 | cmp bl, 255 |
3545 | hidnplayr | 716 | jne @f |
717 | |||
718 | mov eax, [NET_RUNNING] |
||
3601 | hidnplayr | 719 | mov [esp+32], eax |
720 | ret |
||
3545 | hidnplayr | 721 | |
722 | @@: |
||
3600 | hidnplayr | 723 | cmp bh, NET_DEVICES_MAX ; Check if device number exists |
3545 | hidnplayr | 724 | jae .doesnt_exist |
725 | |||
726 | mov esi, ebx |
||
727 | and esi, 0x0000ff00 |
||
728 | shr esi, 6 |
||
729 | |||
6011 | hidnplayr | 730 | cmp dword[esi + NET_DRV_LIST], 0 ; check if driver is running |
3545 | hidnplayr | 731 | je .doesnt_exist |
732 | |||
733 | mov eax, [esi + NET_DRV_LIST] |
||
734 | |||
735 | and ebx, 0x000000ff |
||
736 | cmp ebx, .number |
||
737 | ja .doesnt_exist |
||
738 | jmp dword [.table + 4*ebx] |
||
739 | |||
740 | .table: |
||
741 | dd .get_type ; 0 |
||
742 | dd .get_dev_name ; 1 |
||
743 | dd .reset ; 2 |
||
744 | dd .stop ; 3 |
||
745 | dd .get_ptr ; 4 |
||
746 | dd .get_drv_name ; 5 |
||
3601 | hidnplayr | 747 | |
748 | dd .packets_tx ; 6 |
||
749 | dd .packets_rx ; 7 |
||
750 | dd .bytes_tx ; 8 |
||
751 | dd .bytes_rx ; 9 |
||
752 | dd .state ; 10 |
||
3545 | hidnplayr | 753 | .number = ($ - .table) / 4 - 1 |
754 | |||
3601 | hidnplayr | 755 | .get_type: |
3600 | hidnplayr | 756 | mov eax, [eax + NET_DEVICE.device_type] |
3601 | hidnplayr | 757 | mov [esp+32], eax |
758 | ret |
||
3545 | hidnplayr | 759 | |
3601 | hidnplayr | 760 | .get_dev_name: |
3545 | hidnplayr | 761 | mov esi, [eax + NET_DEVICE.name] |
762 | mov edi, ecx |
||
763 | |||
764 | mov ecx, 64/4 ; max length |
||
3711 | clevermous | 765 | rep movsd |
3545 | hidnplayr | 766 | |
767 | xor eax, eax |
||
3601 | hidnplayr | 768 | mov [esp+32], eax |
769 | ret |
||
3545 | hidnplayr | 770 | |
3601 | hidnplayr | 771 | .reset: |
3545 | hidnplayr | 772 | call [eax + NET_DEVICE.reset] |
3601 | hidnplayr | 773 | mov [esp+32], eax |
774 | ret |
||
3545 | hidnplayr | 775 | |
3601 | hidnplayr | 776 | .stop: |
3545 | hidnplayr | 777 | call [eax + NET_DEVICE.unload] |
3601 | hidnplayr | 778 | mov [esp+32], eax |
779 | ret |
||
3545 | hidnplayr | 780 | |
781 | |||
3601 | hidnplayr | 782 | .get_ptr: |
783 | mov [esp+32], eax |
||
784 | ret |
||
3545 | hidnplayr | 785 | |
786 | |||
3601 | hidnplayr | 787 | .get_drv_name: |
788 | xor eax, eax |
||
789 | mov [esp+32], eax |
||
790 | ret |
||
3545 | hidnplayr | 791 | |
3601 | hidnplayr | 792 | .packets_tx: |
793 | mov eax, [eax + NET_DEVICE.packets_tx] |
||
794 | mov [esp+32], eax |
||
795 | ret |
||
3545 | hidnplayr | 796 | |
3601 | hidnplayr | 797 | .packets_rx: |
798 | mov eax, [eax + NET_DEVICE.packets_rx] |
||
799 | mov [esp+32], eax |
||
800 | ret |
||
3545 | hidnplayr | 801 | |
3601 | hidnplayr | 802 | .bytes_tx: |
6011 | hidnplayr | 803 | mov ebx, dword[eax + NET_DEVICE.bytes_tx + 4] |
3601 | hidnplayr | 804 | mov [esp+20], ebx |
6011 | hidnplayr | 805 | mov eax, dword[eax + NET_DEVICE.bytes_tx] |
3601 | hidnplayr | 806 | mov [esp+32], eax |
807 | ret |
||
3545 | hidnplayr | 808 | |
3601 | hidnplayr | 809 | .bytes_rx: |
6011 | hidnplayr | 810 | mov ebx, dword[eax + NET_DEVICE.bytes_rx + 4] |
3601 | hidnplayr | 811 | mov [esp+20], ebx |
6011 | hidnplayr | 812 | mov eax, dword[eax + NET_DEVICE.bytes_rx] |
3601 | hidnplayr | 813 | mov [esp+32], eax |
814 | ret |
||
3545 | hidnplayr | 815 | |
3601 | hidnplayr | 816 | .state: |
817 | mov eax, [eax + NET_DEVICE.link_state] |
||
3545 | hidnplayr | 818 | mov [esp+32], eax |
819 | ret |
||
820 | |||
821 | |||
3601 | hidnplayr | 822 | .doesnt_exist: |
823 | mov dword[esp+32], -1 |
||
824 | ret |
||
825 | |||
826 | |||
827 | |||
6011 | hidnplayr | 828 | ;-----------------------------------------------------------------; |
829 | ; ; |
||
830 | ; System function 76: Low level access to protocol handlers. ; |
||
831 | ; ; |
||
832 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 833 | align 4 |
834 | sys_protocols: |
||
3600 | hidnplayr | 835 | cmp bh, NET_DEVICES_MAX ; Check if device number exists |
3545 | hidnplayr | 836 | jae .doesnt_exist |
837 | |||
838 | mov esi, ebx |
||
839 | and esi, 0x0000ff00 |
||
840 | shr esi, 6 ; now we have the device num * 4 in esi |
||
841 | cmp [esi + NET_DRV_LIST], 0 ; check if driver is running |
||
842 | je .doesnt_exist |
||
843 | |||
844 | push .return ; return address (we will be using jumps instead of calls) |
||
845 | |||
846 | mov eax, ebx ; set ax to protocol number |
||
847 | shr eax, 16 ; |
||
848 | |||
849 | cmp ax, API_ETH |
||
6011 | hidnplayr | 850 | je eth_api |
3545 | hidnplayr | 851 | |
852 | cmp ax, API_IPv4 |
||
6011 | hidnplayr | 853 | je ipv4_api |
3545 | hidnplayr | 854 | |
855 | cmp ax, API_ICMP |
||
6011 | hidnplayr | 856 | je icmp_api |
3545 | hidnplayr | 857 | |
858 | cmp ax, API_UDP |
||
6011 | hidnplayr | 859 | je udp_api |
3545 | hidnplayr | 860 | |
861 | cmp ax, API_TCP |
||
6011 | hidnplayr | 862 | je tcp_api |
3545 | hidnplayr | 863 | |
864 | cmp ax, API_ARP |
||
6011 | hidnplayr | 865 | je arp_api |
3545 | hidnplayr | 866 | |
867 | cmp ax, API_PPPOE |
||
6011 | hidnplayr | 868 | je pppoe_api |
3545 | hidnplayr | 869 | |
870 | cmp ax, API_IPv6 |
||
6011 | hidnplayr | 871 | je ipv6_api |
3545 | hidnplayr | 872 | |
873 | add esp, 4 ; if we reached here, no function was called, so we need to balance stack |
||
874 | |||
875 | .doesnt_exist: |
||
876 | mov eax, -1 |
||
877 | |||
878 | .return: |
||
879 | mov [esp+28+4], eax ; return eax value to the program |
||
880 | ret |