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Rev | Author | Line No. | Line |
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3545 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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8866 | rgimad | 3 | ;; Copyright (C) KolibriOS team 2004-2021. 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: 8896 $ |
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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6476 | hidnplayr | 94 | SO_LINGER = 1 shl 10 |
3545 | hidnplayr | 95 | |
96 | SO_NONBLOCK = 1 shl 31 |
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97 | |||
98 | ; Socket flags for user calls |
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99 | MSG_PEEK = 0x02 |
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100 | MSG_DONTWAIT = 0x40 |
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101 | |||
102 | ; Socket States |
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3600 | hidnplayr | 103 | SS_NOFDREF = 0x0001 ; no file table ref any more |
104 | SS_ISCONNECTED = 0x0002 ; socket connected to a peer |
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105 | SS_ISCONNECTING = 0x0004 ; in process of connecting to peer |
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106 | SS_ISDISCONNECTING = 0x0008 ; in process of disconnecting |
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107 | SS_CANTSENDMORE = 0x0010 ; can't send more data to peer |
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108 | SS_CANTRCVMORE = 0x0020 ; can't receive more data from peer |
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109 | SS_RCVATMARK = 0x0040 ; at mark on input |
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110 | SS_ISABORTING = 0x0080 ; aborting fd references - close() |
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111 | SS_RESTARTSYS = 0x0100 ; restart blocked system calls |
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112 | SS_ISDISCONNECTED = 0x0800 ; socket disconnected from peer |
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3545 | hidnplayr | 113 | |
3674 | hidnplayr | 114 | SS_ASYNC = 0x1000 ; async i/o notify |
115 | SS_ISCONFIRMING = 0x2000 ; deciding to accept connection req |
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116 | SS_MORETOCOME = 0x4000 |
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3545 | hidnplayr | 117 | |
118 | SS_BLOCKED = 0x8000 |
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119 | |||
120 | |||
6413 | hidnplayr | 121 | SOCKET_BUFFER_SIZE = 4096*8 ; must be 4096*(power of 2) where 'power of 2' is at least 8 |
3600 | hidnplayr | 122 | MAX_backlog = 20 ; maximum backlog for stream sockets |
3545 | hidnplayr | 123 | |
124 | ; Error Codes |
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3674 | hidnplayr | 125 | ENOBUFS = 1 |
4025 | hidnplayr | 126 | EINPROGRESS = 2 |
3674 | hidnplayr | 127 | EOPNOTSUPP = 4 |
128 | EWOULDBLOCK = 6 |
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129 | ENOTCONN = 9 |
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130 | EALREADY = 10 |
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131 | EINVAL = 11 |
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132 | EMSGSIZE = 12 |
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133 | ENOMEM = 18 |
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134 | EADDRINUSE = 20 |
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6476 | hidnplayr | 135 | EADDRNOTAVAIL = 21 |
3545 | hidnplayr | 136 | ECONNRESET = 52 |
6476 | hidnplayr | 137 | ECONNABORTED = 53 |
4025 | hidnplayr | 138 | EISCONN = 56 |
3545 | hidnplayr | 139 | ETIMEDOUT = 60 |
6476 | hidnplayr | 140 | ECONNREFUSED = 61 |
3545 | hidnplayr | 141 | |
142 | ; Api protocol numbers |
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143 | API_ETH = 0 |
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144 | API_IPv4 = 1 |
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145 | API_ICMP = 2 |
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146 | API_UDP = 3 |
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147 | API_TCP = 4 |
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148 | API_ARP = 5 |
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149 | API_PPPOE = 6 |
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150 | API_IPv6 = 7 |
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151 | |||
3600 | hidnplayr | 152 | ; Network device types |
153 | NET_DEVICE_LOOPBACK = 0 |
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154 | NET_DEVICE_ETH = 1 |
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155 | NET_DEVICE_SLIP = 2 |
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156 | |||
157 | ; Network link types (link protocols) |
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5528 | hidnplayr | 158 | NET_LINK_LOOPBACK = 0 |
3600 | hidnplayr | 159 | NET_LINK_MAC = 1 ; Media access control (ethernet, isdn, ...) |
160 | NET_LINK_PPP = 2 ; Point to Point Protocol (PPPoE, ...) |
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161 | NET_LINK_IEEE802.11 = 3 ; IEEE 802.11 (WiFi) |
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162 | |||
163 | ; Hardware acceleration bits |
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4387 | hidnplayr | 164 | NET_HWACC_TCP_IPv4_IN = 1 shl 0 |
165 | NET_HWACC_TCP_IPv4_OUT = 1 shl 1 |
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3545 | hidnplayr | 166 | |
5522 | hidnplayr | 167 | ; Network frame types |
6011 | hidnplayr | 168 | NET_BUFF_LOOPBACK = 0 |
169 | NET_BUFF_ETH = 1 |
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5522 | hidnplayr | 170 | |
3545 | hidnplayr | 171 | struct NET_DEVICE |
172 | |||
3600 | hidnplayr | 173 | device_type dd ? ; Type field |
3545 | hidnplayr | 174 | mtu dd ? ; Maximal Transmission Unit |
175 | name dd ? ; Ptr to 0 terminated string |
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176 | |||
177 | unload dd ? ; Ptrs to driver functions |
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178 | reset dd ? ; |
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179 | transmit dd ? ; |
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180 | |||
8896 | hidnplayr | 181 | link_state dd ? ; link state (0 = no link) |
182 | hwacc dd ? ; bitmask stating enabled HW accelerations (offload engines) |
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183 | |||
3545 | hidnplayr | 184 | bytes_tx dq ? ; Statistics, updated by the driver |
185 | bytes_rx dq ? ; |
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8896 | hidnplayr | 186 | |
3545 | hidnplayr | 187 | packets_tx dd ? ; |
8896 | hidnplayr | 188 | packets_tx_err dd ? ; CRC errors, too long or too short frames |
189 | packets_tx_drop dd ? ; |
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190 | packets_tx_ovr dd ? ; FIFO overrun |
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191 | |||
3545 | hidnplayr | 192 | packets_rx dd ? ; |
8896 | hidnplayr | 193 | packets_rx_err dd ? ; CRC errors, too long or too short frames |
194 | packets_rx_drop dd ? ; |
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195 | packets_rx_ovr dd ? ; FIFO overrun |
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3545 | hidnplayr | 196 | |
197 | ends |
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198 | |||
5522 | hidnplayr | 199 | struct NET_BUFF |
3545 | hidnplayr | 200 | |
5522 | hidnplayr | 201 | NextPtr dd ? ; pointer to next frame in list |
202 | PrevPtr dd ? ; pointer to previous frame in list |
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203 | device dd ? ; ptr to NET_DEVICE structure |
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204 | type dd ? ; encapsulation type: e.g. Ethernet |
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205 | length dd ? ; size of encapsulated data |
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206 | offset dd ? ; offset to actual data (24 bytes for default frame) |
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207 | data rb 0 |
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208 | |||
209 | ends |
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210 | |||
211 | |||
3545 | hidnplayr | 212 | ; Exactly as it says.. |
213 | macro pseudo_random reg { |
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214 | add reg, [esp] |
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215 | rol reg, 5 |
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216 | xor reg, [timer_ticks] |
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217 | ; add reg, [CPU_FREQ] |
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218 | imul reg, 214013 |
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219 | xor reg, 0xdeadbeef |
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220 | rol reg, 9 |
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221 | } |
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222 | |||
223 | ; Network to Hardware byte order (dword) |
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224 | macro ntohd reg { |
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225 | |||
226 | rol word reg, 8 |
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227 | rol dword reg, 16 |
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228 | rol word reg , 8 |
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229 | |||
230 | } |
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231 | |||
232 | ; Network to Hardware byte order (word) |
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233 | macro ntohw reg { |
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234 | |||
235 | rol word reg, 8 |
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236 | |||
237 | } |
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238 | |||
239 | |||
240 | include "queue.inc" |
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241 | |||
242 | include "loopback.inc" |
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243 | include "ethernet.inc" |
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244 | |||
245 | include "PPPoE.inc" |
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246 | |||
247 | include "ARP.inc" |
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248 | include "IPv4.inc" |
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249 | include "IPv6.inc" |
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250 | |||
251 | include "icmp.inc" |
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252 | include "udp.inc" |
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253 | include "tcp.inc" |
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254 | |||
255 | include "socket.inc" |
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256 | |||
257 | |||
258 | |||
3698 | hidnplayr | 259 | uglobal |
3545 | hidnplayr | 260 | align 4 |
261 | |||
7679 | hidnplayr | 262 | net_device_count dd ? |
263 | net_device_list rd NET_DEVICES_MAX |
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3545 | hidnplayr | 264 | |
7679 | hidnplayr | 265 | net_buffs_free rd NET_BUFFERS |
266 | .current dd ? |
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5528 | hidnplayr | 267 | |
3545 | hidnplayr | 268 | endg |
269 | |||
270 | |||
6011 | hidnplayr | 271 | ;-----------------------------------------------------------------; |
272 | ; ; |
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273 | ; stack_init: Initialize all network variables ; |
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274 | ; ; |
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275 | ; IN: / ; |
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276 | ; OUT: / ; |
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277 | ; ; |
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278 | ;-----------------------------------------------------------------; |
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3545 | hidnplayr | 279 | align 4 |
280 | stack_init: |
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281 | |||
5528 | hidnplayr | 282 | ; allocate network buffers |
283 | stdcall kernel_alloc, NET_BUFFER_SIZE*NET_BUFFERS |
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284 | test eax, eax |
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285 | jz .fail |
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286 | |||
7678 | hidnplayr | 287 | mov edi, net_buffs_free |
5528 | hidnplayr | 288 | mov ecx, NET_BUFFERS |
289 | cld |
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290 | .loop: |
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291 | stosd |
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292 | add eax, NET_BUFFER_SIZE |
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293 | dec ecx |
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294 | jnz .loop |
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295 | |||
7678 | hidnplayr | 296 | mov eax, net_buffs_free |
5528 | hidnplayr | 297 | stosd |
298 | |||
3545 | hidnplayr | 299 | ; Init the network drivers list |
300 | xor eax, eax |
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7679 | hidnplayr | 301 | mov edi, net_device_count |
5524 | hidnplayr | 302 | mov ecx, (NET_DEVICES_MAX + 1) |
3711 | clevermous | 303 | rep stosd |
3545 | hidnplayr | 304 | |
6011 | hidnplayr | 305 | eth_init |
3982 | hidnplayr | 306 | |
6011 | hidnplayr | 307 | pppoe_init |
3545 | hidnplayr | 308 | |
6011 | hidnplayr | 309 | ipv4_init |
310 | ; ipv6_init |
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311 | icmp_init |
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3545 | hidnplayr | 312 | |
6011 | hidnplayr | 313 | arp_init |
314 | udp_init |
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315 | tcp_init |
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3545 | hidnplayr | 316 | |
6011 | hidnplayr | 317 | socket_init |
3545 | hidnplayr | 318 | |
6011 | hidnplayr | 319 | loop_init |
3601 | hidnplayr | 320 | |
3545 | hidnplayr | 321 | mov [net_tmr_count], 0 |
5528 | hidnplayr | 322 | ret |
3545 | hidnplayr | 323 | |
5528 | hidnplayr | 324 | .fail: |
325 | DEBUGF DEBUG_NETWORK_ERROR, "Stack init failed!\n" |
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3545 | hidnplayr | 326 | ret |
327 | |||
328 | |||
329 | |||
330 | ; Wakeup every tick. |
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331 | proc stack_handler_has_work? |
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332 | |||
3711 | clevermous | 333 | mov eax, [timer_ticks] |
334 | cmp eax, [net_10ms] |
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3545 | hidnplayr | 335 | |
336 | ret |
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337 | endp |
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338 | |||
339 | |||
6011 | hidnplayr | 340 | ;-----------------------------------------------------------------; |
341 | ; ; |
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342 | ; stack_handler: Network handlers called from os_loop. ; |
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343 | ; ; |
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344 | ; IN: / ; |
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345 | ; OUT: / ; |
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346 | ; ; |
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347 | ;-----------------------------------------------------------------; |
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3545 | hidnplayr | 348 | align 4 |
349 | stack_handler: |
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350 | |||
351 | ; Test for 10ms tick |
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352 | mov eax, [timer_ticks] |
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353 | cmp eax, [net_10ms] |
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354 | je .exit |
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355 | mov [net_10ms], eax |
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356 | |||
7679 | hidnplayr | 357 | cmp [net_device_count], 0 |
3545 | hidnplayr | 358 | je .exit |
359 | |||
360 | test [net_10ms], 0x0f ; 160ms |
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361 | jnz .exit |
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362 | |||
6011 | hidnplayr | 363 | tcp_timer_160ms |
3545 | hidnplayr | 364 | |
365 | test [net_10ms], 0x3f ; 640ms |
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366 | jnz .exit |
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367 | |||
6011 | hidnplayr | 368 | arp_decrease_entry_ttls |
369 | ipv4_decrease_fragment_ttls |
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3545 | hidnplayr | 370 | |
5013 | hidnplayr | 371 | xor edx, edx |
372 | mov eax, [TCP_timer1_event] |
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373 | mov ebx, [eax + EVENT.id] |
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374 | xor esi, esi |
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375 | call raise_event |
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376 | |||
3545 | hidnplayr | 377 | .exit: |
378 | ret |
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379 | |||
380 | |||
3861 | hidnplayr | 381 | align 4 |
6011 | hidnplayr | 382 | proc net_buff_alloc stdcall, buffersize |
383 | |||
5528 | hidnplayr | 384 | cmp [buffersize], NET_BUFFER_SIZE |
385 | ja .too_large |
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5522 | hidnplayr | 386 | |
5528 | hidnplayr | 387 | spin_lock_irqsave |
5522 | hidnplayr | 388 | |
7678 | hidnplayr | 389 | mov eax, [net_buffs_free.current] |
390 | cmp eax, net_buffs_free+NET_BUFFERS*4 |
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5528 | hidnplayr | 391 | jae .out_of_mem |
392 | mov eax, [eax] |
||
7678 | hidnplayr | 393 | add [net_buffs_free.current], 4 |
5528 | hidnplayr | 394 | |
395 | spin_unlock_irqrestore |
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396 | |||
6011 | hidnplayr | 397 | DEBUGF DEBUG_NETWORK_VERBOSE, "net_buff_alloc: 0x%x\n", eax |
5528 | hidnplayr | 398 | ret |
399 | |||
400 | .out_of_mem: |
||
401 | spin_unlock_irqrestore |
||
402 | |||
403 | xor eax, eax |
||
6011 | hidnplayr | 404 | DEBUGF DEBUG_NETWORK_ERROR, "net_buff_alloc: out of mem!\n" |
5528 | hidnplayr | 405 | ret |
406 | |||
407 | .too_large: |
||
408 | xor eax, eax |
||
6011 | hidnplayr | 409 | DEBUGF DEBUG_NETWORK_ERROR, "net_buff_alloc: too large!\n" |
5528 | hidnplayr | 410 | ret |
411 | endp |
||
412 | |||
413 | |||
5522 | hidnplayr | 414 | align 4 |
6011 | hidnplayr | 415 | proc net_buff_free stdcall, buffer |
3545 | hidnplayr | 416 | |
6011 | hidnplayr | 417 | DEBUGF DEBUG_NETWORK_VERBOSE, "net_buff_free: 0x%x\n", [buffer] |
3861 | hidnplayr | 418 | |
5528 | hidnplayr | 419 | spin_lock_irqsave |
420 | |||
8896 | hidnplayr | 421 | sub [net_buffs_free.current], 4 ; move pointer backwards |
422 | mov eax, [net_buffs_free.current] ; place free'd buffer pointer on the list |
||
5528 | hidnplayr | 423 | push [buffer] |
424 | pop dword[eax] |
||
425 | |||
426 | spin_unlock_irqrestore |
||
427 | |||
428 | ret |
||
429 | endp |
||
430 | |||
431 | |||
3545 | hidnplayr | 432 | align 4 |
6011 | hidnplayr | 433 | net_link_changed: |
3545 | hidnplayr | 434 | |
6011 | hidnplayr | 435 | DEBUGF DEBUG_NETWORK_VERBOSE, "net_link_changed device=0x%x status=0x%x\n", ebx, [ebx + NET_DEVICE.link_state] |
3545 | hidnplayr | 436 | |
437 | align 4 |
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6011 | hidnplayr | 438 | net_send_event: |
3545 | hidnplayr | 439 | |
6011 | hidnplayr | 440 | DEBUGF DEBUG_NETWORK_VERBOSE, "net_send_event\n" |
3545 | hidnplayr | 441 | |
442 | ; Send event to all applications |
||
443 | push edi ecx |
||
444 | mov edi, SLOT_BASE |
||
8866 | rgimad | 445 | mov ecx, [thread_count] |
3545 | hidnplayr | 446 | .loop: |
8867 | rgimad | 447 | add edi, sizeof.APPDATA |
448 | or [edi + APPDATA.occurred_events], EVENT_NETWORK2 |
||
3545 | hidnplayr | 449 | loop .loop |
450 | pop ecx edi |
||
451 | |||
452 | ret |
||
453 | |||
454 | |||
455 | |||
6011 | hidnplayr | 456 | ;-----------------------------------------------------------------; |
457 | ; ; |
||
458 | ; net_add_device: Called by network driver to register interface. ; |
||
459 | ; ; |
||
460 | ; IN: ebx = ptr to device structure ; |
||
461 | ; ; |
||
462 | ; OUT: eax = device num on success ; |
||
463 | ; eax = -1 on error ; |
||
464 | ; ; |
||
465 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 466 | align 4 |
6011 | hidnplayr | 467 | net_add_device: |
3545 | hidnplayr | 468 | |
6011 | hidnplayr | 469 | DEBUGF DEBUG_NETWORK_VERBOSE, "net_add_device: %x\n", ebx ;;; TODO: use mutex to lock net device list |
3545 | hidnplayr | 470 | |
7679 | hidnplayr | 471 | cmp [net_device_count], NET_DEVICES_MAX |
3545 | hidnplayr | 472 | jae .error |
473 | |||
474 | ;---------------------------------- |
||
475 | ; Check if device is already listed |
||
476 | mov eax, ebx |
||
3600 | hidnplayr | 477 | mov ecx, NET_DEVICES_MAX ; We need to check whole list because a device may be removed without re-organizing list |
7679 | hidnplayr | 478 | mov edi, net_device_list |
3545 | hidnplayr | 479 | |
3711 | clevermous | 480 | repne scasd ; See if device is already in the list |
3545 | hidnplayr | 481 | jz .error |
482 | |||
483 | ;---------------------------- |
||
484 | ; Find empty slot in the list |
||
485 | xor eax, eax |
||
3600 | hidnplayr | 486 | mov ecx, NET_DEVICES_MAX |
7679 | hidnplayr | 487 | mov edi, net_device_list |
3545 | hidnplayr | 488 | |
3711 | clevermous | 489 | repne scasd |
3545 | hidnplayr | 490 | jnz .error |
491 | |||
492 | sub edi, 4 |
||
493 | |||
494 | ;----------------------------- |
||
495 | ; Add device to the found slot |
||
496 | mov [edi], ebx ; add device to list |
||
497 | |||
498 | mov eax, edi ; Calculate device number in eax |
||
7679 | hidnplayr | 499 | sub eax, net_device_list |
3545 | hidnplayr | 500 | shr eax, 2 |
501 | |||
7679 | hidnplayr | 502 | inc [net_device_count] ; Indicate that one more network device is up and running |
3545 | hidnplayr | 503 | |
6011 | hidnplayr | 504 | call net_send_event |
3545 | hidnplayr | 505 | |
3556 | hidnplayr | 506 | DEBUGF DEBUG_NETWORK_VERBOSE, "Device number: %u\n", eax |
3545 | hidnplayr | 507 | ret |
508 | |||
509 | .error: |
||
510 | or eax, -1 |
||
3556 | hidnplayr | 511 | DEBUGF DEBUG_NETWORK_ERROR, "Adding network device failed\n" |
3545 | hidnplayr | 512 | ret |
513 | |||
514 | |||
515 | |||
6011 | hidnplayr | 516 | ;-----------------------------------------------------------------; |
517 | ; ; |
||
518 | ; net_remove_device: Called by network driver to unregister dev. ; |
||
519 | ; ; |
||
520 | ; IN: ebx = ptr to device ; |
||
521 | ; ; |
||
522 | ; OUT: eax: -1 on error ; |
||
523 | ; ; |
||
524 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 525 | align 4 |
6011 | hidnplayr | 526 | net_remove_device: |
3545 | hidnplayr | 527 | |
7679 | hidnplayr | 528 | cmp [net_device_count], 0 |
3545 | hidnplayr | 529 | je .error |
530 | |||
531 | ;---------------------------- |
||
532 | ; Find the driver in the list |
||
533 | |||
534 | mov eax, ebx |
||
3600 | hidnplayr | 535 | mov ecx, NET_DEVICES_MAX |
7679 | hidnplayr | 536 | mov edi, net_device_list |
3545 | hidnplayr | 537 | |
3711 | clevermous | 538 | repne scasd |
3545 | hidnplayr | 539 | jnz .error |
540 | |||
541 | ;------------------------ |
||
542 | ; Remove it from the list |
||
543 | |||
544 | xor eax, eax |
||
545 | mov dword [edi-4], eax |
||
7679 | hidnplayr | 546 | dec [net_device_count] |
3545 | hidnplayr | 547 | |
6011 | hidnplayr | 548 | call net_send_event |
3545 | hidnplayr | 549 | |
3601 | hidnplayr | 550 | xor eax, eax |
3545 | hidnplayr | 551 | ret |
552 | |||
553 | .error: |
||
554 | or eax, -1 |
||
555 | ret |
||
556 | |||
557 | |||
558 | |||
6011 | hidnplayr | 559 | ;-----------------------------------------------------------------; |
560 | ; ; |
||
561 | ; net_ptr_to_num ; |
||
562 | ; ; |
||
563 | ; IN: ebx = ptr to device struct ; |
||
564 | ; ; |
||
565 | ; OUT: edi = device number ; |
||
566 | ; edi = -1 on error ; |
||
567 | ; ; |
||
568 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 569 | align 4 |
6011 | hidnplayr | 570 | net_ptr_to_num: |
3643 | hidnplayr | 571 | |
6011 | hidnplayr | 572 | call net_ptr_to_num4 |
3643 | hidnplayr | 573 | ror edi, 2 ; If -1, stay -1 |
574 | ; valid device numbers have last two bits 0, so do just shr |
||
575 | |||
576 | ret |
||
577 | |||
578 | align 4 |
||
6011 | hidnplayr | 579 | net_ptr_to_num4: ; Todo, place number in device structure so we only need to verify? |
3643 | hidnplayr | 580 | |
5522 | hidnplayr | 581 | test ebx, ebx |
582 | jz .fail |
||
583 | |||
3545 | hidnplayr | 584 | push ecx |
3600 | hidnplayr | 585 | mov ecx, NET_DEVICES_MAX |
7679 | hidnplayr | 586 | mov edi, net_device_list |
3545 | hidnplayr | 587 | .loop: |
588 | cmp ebx, [edi] |
||
3643 | hidnplayr | 589 | je .found |
3545 | hidnplayr | 590 | add edi, 4 |
591 | dec ecx |
||
592 | jnz .loop |
||
593 | |||
5522 | hidnplayr | 594 | pop ecx |
595 | .fail: |
||
3545 | hidnplayr | 596 | or edi, -1 |
597 | ret |
||
598 | |||
599 | .found: |
||
7679 | hidnplayr | 600 | sub edi, net_device_list |
3545 | hidnplayr | 601 | pop ecx |
602 | ret |
||
603 | |||
6011 | hidnplayr | 604 | ;-----------------------------------------------------------------; |
605 | ; ; |
||
606 | ; checksum_1: Calculate semi-checksum for network packets. ; |
||
607 | ; ; |
||
608 | ; IN: edx = start offset for semi-checksum ; |
||
609 | ; esi = pointer to data ; |
||
610 | ; ecx = data size ; |
||
611 | ; ; |
||
612 | ; OUT: edx = semi-checksum ; |
||
613 | ; ; |
||
614 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 615 | align 4 |
616 | checksum_1: |
||
617 | |||
618 | shr ecx, 1 |
||
619 | pushf |
||
620 | jz .no_2 |
||
621 | |||
622 | shr ecx, 1 |
||
623 | pushf |
||
624 | jz .no_4 |
||
625 | |||
626 | shr ecx, 1 |
||
627 | pushf |
||
628 | jz .no_8 |
||
629 | |||
630 | .loop: |
||
631 | add dl, [esi+1] |
||
632 | adc dh, [esi+0] |
||
633 | |||
634 | adc dl, [esi+3] |
||
635 | adc dh, [esi+2] |
||
636 | |||
637 | adc dl, [esi+5] |
||
638 | adc dh, [esi+4] |
||
639 | |||
640 | adc dl, [esi+7] |
||
641 | adc dh, [esi+6] |
||
642 | |||
643 | adc edx, 0 |
||
644 | add esi, 8 |
||
645 | |||
646 | dec ecx |
||
647 | jnz .loop |
||
648 | |||
649 | adc edx, 0 |
||
650 | |||
651 | .no_8: |
||
652 | popf |
||
653 | jnc .no_4 |
||
654 | |||
655 | add dl, [esi+1] |
||
656 | adc dh, [esi+0] |
||
657 | |||
658 | adc dl, [esi+3] |
||
659 | adc dh, [esi+2] |
||
660 | |||
661 | adc edx, 0 |
||
662 | add esi, 4 |
||
663 | |||
664 | .no_4: |
||
665 | popf |
||
666 | jnc .no_2 |
||
667 | |||
668 | add dl, [esi+1] |
||
669 | adc dh, [esi+0] |
||
670 | |||
671 | adc edx, 0 |
||
672 | inc esi |
||
673 | inc esi |
||
674 | |||
675 | .no_2: |
||
676 | popf |
||
677 | jnc .end |
||
678 | |||
679 | add dh, [esi+0] |
||
680 | adc edx, 0 |
||
681 | .end: |
||
682 | ret |
||
683 | |||
6011 | hidnplayr | 684 | ;-----------------------------------------------------------------; |
685 | ; ; |
||
686 | ; checksum_2: Calculate the final ip/tcp/udp checksum. ; |
||
687 | ; ; |
||
688 | ; IN: edx = semi-checksum ; |
||
689 | ; ; |
||
690 | ; OUT: dx = checksum (in INET byte order) ; |
||
691 | ; ; |
||
692 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 693 | align 4 |
694 | checksum_2: |
||
695 | |||
696 | mov ecx, edx |
||
697 | shr ecx, 16 |
||
698 | and edx, 0xffff |
||
699 | add edx, ecx |
||
700 | |||
701 | mov ecx, edx |
||
702 | shr ecx, 16 |
||
703 | add dx, cx |
||
704 | test dx, dx ; it seems that ZF is not set when CF is set :( |
||
705 | not dx |
||
706 | jnz .not_zero |
||
707 | dec dx |
||
708 | .not_zero: |
||
709 | xchg dl, dh |
||
710 | |||
3556 | hidnplayr | 711 | DEBUGF DEBUG_NETWORK_VERBOSE, "Checksum: %x\n", dx |
3545 | hidnplayr | 712 | |
713 | ret |
||
714 | |||
715 | |||
716 | |||
6011 | hidnplayr | 717 | ;-----------------------------------------------------------------; |
718 | ; ; |
||
719 | ; System function 74: Low level access to network devices. ; |
||
720 | ; ; |
||
721 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 722 | align 4 |
3601 | hidnplayr | 723 | sys_network: |
3545 | hidnplayr | 724 | |
3879 | hidnplayr | 725 | cmp bl, 255 |
3545 | hidnplayr | 726 | jne @f |
727 | |||
7679 | hidnplayr | 728 | mov eax, [net_device_count] |
3601 | hidnplayr | 729 | mov [esp+32], eax |
730 | ret |
||
3545 | hidnplayr | 731 | |
732 | @@: |
||
7679 | hidnplayr | 733 | cmp bh, NET_DEVICES_MAX ; Check if device number exists |
3545 | hidnplayr | 734 | jae .doesnt_exist |
735 | |||
736 | mov esi, ebx |
||
737 | and esi, 0x0000ff00 |
||
738 | shr esi, 6 |
||
739 | |||
7679 | hidnplayr | 740 | cmp dword[esi + net_device_list], 0 ; check if device is running |
3545 | hidnplayr | 741 | je .doesnt_exist |
742 | |||
7679 | hidnplayr | 743 | mov eax, [esi + net_device_list] |
3545 | hidnplayr | 744 | |
745 | and ebx, 0x000000ff |
||
746 | cmp ebx, .number |
||
747 | ja .doesnt_exist |
||
748 | jmp dword [.table + 4*ebx] |
||
749 | |||
750 | .table: |
||
751 | dd .get_type ; 0 |
||
752 | dd .get_dev_name ; 1 |
||
753 | dd .reset ; 2 |
||
754 | dd .stop ; 3 |
||
755 | dd .get_ptr ; 4 |
||
756 | dd .get_drv_name ; 5 |
||
3601 | hidnplayr | 757 | |
758 | dd .packets_tx ; 6 |
||
759 | dd .packets_rx ; 7 |
||
760 | dd .bytes_tx ; 8 |
||
761 | dd .bytes_rx ; 9 |
||
762 | dd .state ; 10 |
||
3545 | hidnplayr | 763 | .number = ($ - .table) / 4 - 1 |
764 | |||
3601 | hidnplayr | 765 | .get_type: |
3600 | hidnplayr | 766 | mov eax, [eax + NET_DEVICE.device_type] |
3601 | hidnplayr | 767 | mov [esp+32], eax |
768 | ret |
||
3545 | hidnplayr | 769 | |
3601 | hidnplayr | 770 | .get_dev_name: |
8700 | Coldy | 771 | ; { Patch by Coldy, sanity check |
772 | mov ebx, eax ; eax will used for is_region_userspace return |
||
773 | stdcall is_region_userspace, ecx, 64 |
||
774 | jz .bad_buffer |
||
775 | mov esi, [ebx + NET_DEVICE.name] ;mov esi, [eax + NET_DEVICE.name] |
||
776 | ; } End patch by Coldy, sanity check |
||
3545 | hidnplayr | 777 | mov edi, ecx |
778 | |||
779 | mov ecx, 64/4 ; max length |
||
3711 | clevermous | 780 | rep movsd |
3545 | hidnplayr | 781 | |
782 | xor eax, eax |
||
3601 | hidnplayr | 783 | mov [esp+32], eax |
784 | ret |
||
3545 | hidnplayr | 785 | |
3601 | hidnplayr | 786 | .reset: |
3545 | hidnplayr | 787 | call [eax + NET_DEVICE.reset] |
3601 | hidnplayr | 788 | mov [esp+32], eax |
789 | ret |
||
3545 | hidnplayr | 790 | |
3601 | hidnplayr | 791 | .stop: |
3545 | hidnplayr | 792 | call [eax + NET_DEVICE.unload] |
3601 | hidnplayr | 793 | mov [esp+32], eax |
794 | ret |
||
3545 | hidnplayr | 795 | |
796 | |||
3601 | hidnplayr | 797 | .get_ptr: |
798 | mov [esp+32], eax |
||
799 | ret |
||
3545 | hidnplayr | 800 | |
801 | |||
3601 | hidnplayr | 802 | .get_drv_name: |
803 | xor eax, eax |
||
804 | mov [esp+32], eax |
||
805 | ret |
||
3545 | hidnplayr | 806 | |
3601 | hidnplayr | 807 | .packets_tx: |
808 | mov eax, [eax + NET_DEVICE.packets_tx] |
||
809 | mov [esp+32], eax |
||
810 | ret |
||
3545 | hidnplayr | 811 | |
3601 | hidnplayr | 812 | .packets_rx: |
813 | mov eax, [eax + NET_DEVICE.packets_rx] |
||
814 | mov [esp+32], eax |
||
815 | ret |
||
3545 | hidnplayr | 816 | |
3601 | hidnplayr | 817 | .bytes_tx: |
6011 | hidnplayr | 818 | mov ebx, dword[eax + NET_DEVICE.bytes_tx + 4] |
3601 | hidnplayr | 819 | mov [esp+20], ebx |
6011 | hidnplayr | 820 | mov eax, dword[eax + NET_DEVICE.bytes_tx] |
3601 | hidnplayr | 821 | mov [esp+32], eax |
822 | ret |
||
3545 | hidnplayr | 823 | |
3601 | hidnplayr | 824 | .bytes_rx: |
6011 | hidnplayr | 825 | mov ebx, dword[eax + NET_DEVICE.bytes_rx + 4] |
3601 | hidnplayr | 826 | mov [esp+20], ebx |
6011 | hidnplayr | 827 | mov eax, dword[eax + NET_DEVICE.bytes_rx] |
3601 | hidnplayr | 828 | mov [esp+32], eax |
829 | ret |
||
3545 | hidnplayr | 830 | |
3601 | hidnplayr | 831 | .state: |
832 | mov eax, [eax + NET_DEVICE.link_state] |
||
3545 | hidnplayr | 833 | mov [esp+32], eax |
834 | ret |
||
835 | |||
836 | |||
3601 | hidnplayr | 837 | .doesnt_exist: |
8700 | Coldy | 838 | .bad_buffer: ; Sanity check failed, exit |
3601 | hidnplayr | 839 | mov dword[esp+32], -1 |
840 | ret |
||
841 | |||
842 | |||
843 | |||
6011 | hidnplayr | 844 | ;-----------------------------------------------------------------; |
845 | ; ; |
||
846 | ; System function 76: Low level access to protocol handlers. ; |
||
847 | ; ; |
||
848 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 849 | align 4 |
850 | sys_protocols: |
||
3600 | hidnplayr | 851 | cmp bh, NET_DEVICES_MAX ; Check if device number exists |
3545 | hidnplayr | 852 | jae .doesnt_exist |
853 | |||
7963 | hidnplayr | 854 | mov eax, ebx |
855 | and eax, 0x0000ff00 |
||
856 | shr eax, 6 ; now we have the device num * 4 in eax |
||
857 | cmp [eax + net_device_list], 0 ; check if device is running |
||
3545 | hidnplayr | 858 | je .doesnt_exist |
859 | |||
860 | push .return ; return address (we will be using jumps instead of calls) |
||
861 | |||
862 | mov eax, ebx ; set ax to protocol number |
||
863 | shr eax, 16 ; |
||
864 | |||
865 | cmp ax, API_ETH |
||
6011 | hidnplayr | 866 | je eth_api |
3545 | hidnplayr | 867 | |
868 | cmp ax, API_IPv4 |
||
6011 | hidnplayr | 869 | je ipv4_api |
3545 | hidnplayr | 870 | |
871 | cmp ax, API_ICMP |
||
6011 | hidnplayr | 872 | je icmp_api |
3545 | hidnplayr | 873 | |
874 | cmp ax, API_UDP |
||
6011 | hidnplayr | 875 | je udp_api |
3545 | hidnplayr | 876 | |
877 | cmp ax, API_TCP |
||
6011 | hidnplayr | 878 | je tcp_api |
3545 | hidnplayr | 879 | |
880 | cmp ax, API_ARP |
||
6011 | hidnplayr | 881 | je arp_api |
3545 | hidnplayr | 882 | |
883 | cmp ax, API_PPPOE |
||
6011 | hidnplayr | 884 | je pppoe_api |
3545 | hidnplayr | 885 | |
886 | cmp ax, API_IPv6 |
||
6011 | hidnplayr | 887 | je ipv6_api |
3545 | hidnplayr | 888 | |
889 | add esp, 4 ; if we reached here, no function was called, so we need to balance stack |
||
890 | |||
891 | .doesnt_exist: |
||
892 | mov eax, -1 |
||
893 | |||
894 | .return: |
||
895 | mov [esp+28+4], eax ; return eax value to the program |
||
896 | ret |