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1171 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2009. 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 | ;; BASIC 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 | ;; based on the work of Mike Hibbett, mikeh@oceanfree.net ;; |
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13 | ;; but also Paolo Franchetti ;; |
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14 | ;; ;; |
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15 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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16 | ;; Version 2, June 1991 ;; |
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17 | ;; ;; |
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18 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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1159 | hidnplayr | 19 | |
20 | $Revision: 983 $ |
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21 | |||
22 | |||
23 | ;******************************************************************* |
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24 | ; Interface |
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25 | ; The interfaces defined in ETHERNET.INC plus: |
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26 | ; stack_init |
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27 | ; stack_handler |
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28 | ; app_stack_handler |
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29 | ; app_socket_handler |
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30 | ; checksum |
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31 | ; |
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32 | ;******************************************************************* |
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33 | |||
34 | uglobal |
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35 | last_1sTick db ? |
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36 | last_1hsTick dd ? |
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37 | endg |
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38 | |||
39 | MAX_NET_DEVICES equ 16 |
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40 | |||
41 | ; TCP opening modes |
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42 | SOCKET_PASSIVE equ 0 |
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43 | SOCKET_ACTIVE equ 1 |
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44 | |||
45 | ;AF_UNSPEC equ 0 |
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46 | ;AF_UNIX equ 1 |
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47 | AF_INET4 equ 2 |
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48 | ;AF_AX25 equ 3 |
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49 | ;AF_IPX equ 4 |
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50 | ;AF_APPLETALK equ 5 |
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51 | ;AF_NETROM equ 6 |
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52 | ;AF_BRIDGE equ 7 |
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53 | ;AF_AAL5 equ 8 |
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54 | ;AF_X25 equ 9 |
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55 | ;AF_INET6 equ 10 |
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56 | ;AF_MAX equ 12 |
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57 | |||
58 | IP_PROTO_IP equ 0 |
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59 | IP_PROTO_ICMP equ 1 |
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60 | IP_PROTO_TCP equ 6 |
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61 | IP_PROTO_UDP equ 17 |
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62 | |||
63 | MIN_EPHEMERAL_PORT equ 49152 |
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64 | MAX_EPHEMERAL_PORT equ 61000 |
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65 | |||
66 | include "queue.inc" |
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67 | include "ARP.inc" |
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68 | include "IPv4.inc" |
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69 | include "ethernet.inc" |
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70 | include "socket.inc" |
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71 | ;include "TCP.inc" |
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72 | include "UDP.inc" |
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73 | include "ICMP.inc" |
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74 | |||
75 | ;----------------------------------------------- |
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76 | ; |
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77 | ; stack_init |
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78 | ; |
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79 | ; This function calls all network init procedures |
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80 | ; |
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81 | ; IN: / |
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82 | ; OUT: / |
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83 | ; |
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84 | ;----------------------------------------------- |
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85 | |||
86 | align 4 |
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87 | stack_init: |
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88 | |||
89 | call ETH_init |
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90 | call IPv4_init |
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91 | call ARP_init |
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92 | call UDP_init |
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93 | call ICMP_init |
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94 | call socket_init |
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95 | |||
96 | mov al, 0x0 ; set up 1s timer |
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97 | out 0x70, al |
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98 | in al, 0x71 |
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99 | mov [last_1sTick], al |
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100 | |||
101 | ret |
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102 | |||
103 | |||
104 | |||
105 | ;----------------------------------------------- |
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106 | ; |
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107 | ; stack_handler |
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108 | ; |
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109 | ; This function calls all network init procedures |
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110 | ; |
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111 | ; IN: / |
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112 | ; OUT: / |
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113 | ; |
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114 | ;----------------------------------------------- |
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115 | |||
116 | align 4 |
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117 | stack_handler: |
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118 | |||
119 | cmp [ETH_RUNNING], 0 |
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120 | je .exit |
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121 | |||
122 | call ETH_Handler ; handle all queued ethernet packets |
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123 | call ETH_send_queued |
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124 | |||
125 | ; Test for 10ms tick, call tcp timer |
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126 | mov eax, [timer_ticks] |
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127 | cmp eax, [last_1hsTick] |
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128 | je .sec_tick |
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129 | |||
130 | mov [last_1hsTick], eax |
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131 | ; call tcp_tx_handler |
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132 | |||
133 | .sec_tick: |
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134 | |||
135 | ; Test for 1 second event, call 1s timer functions |
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136 | mov al, 0x0 ;second |
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137 | out 0x70, al |
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138 | in al, 0x71 |
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139 | cmp al, [last_1sTick] |
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140 | je .exit |
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141 | |||
142 | mov [last_1sTick], al |
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143 | |||
144 | stdcall arp_table_manager, ARP_TABLE_TIMER, 0, 0 |
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145 | call IPv4_decrease_fragment_ttls |
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146 | ; call tcp_tcb_handler |
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147 | |||
148 | .exit: |
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149 | ret |
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150 | |||
151 | |||
152 | |||
153 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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154 | ;; Checksum [by Johnny_B] |
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155 | ;; IN: |
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156 | ;; buf_ptr=POINTER to buffer |
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157 | ;; buf_size=SIZE of buffer |
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158 | ;; OUT: |
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159 | ;; AX=16-bit checksum |
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160 | ;; Saves all used registers |
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161 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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162 | proc checksum_jb stdcall uses ebx esi ecx,\ |
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163 | buf_ptr:DWORD, buf_size:DWORD |
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164 | |||
165 | xor eax, eax |
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166 | xor ebx, ebx ;accumulator |
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167 | mov esi, dword[buf_ptr] |
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168 | mov ecx, dword[buf_size] |
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169 | shr ecx, 1 ; ecx=ecx/2 |
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170 | jnc @f ; if CF==0 then size is even number |
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171 | mov bh, byte[esi + ecx*2] |
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172 | @@: |
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173 | cld |
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174 | |||
175 | .loop: |
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176 | lodsw ;eax=word[esi],esi=esi+2 |
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177 | xchg ah,al ;cause must be a net byte-order |
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178 | add ebx, eax |
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179 | loop .loop |
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180 | |||
181 | mov eax, ebx |
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182 | shr eax, 16 |
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183 | add ax, bx |
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184 | not ax |
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185 | |||
186 | ret |
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187 | endp |
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188 | |||
189 | |||
190 | |||
191 | ;---------------------------------------------------------------- |
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192 | ; |
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1171 | hidnplayr | 193 | ; System function to work with network devices (73) |
1159 | hidnplayr | 194 | ; |
195 | ;---------------------------------------------------------------- |
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196 | |||
197 | align 4 |
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198 | sys_network: |
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199 | |||
200 | cmp bh, MAX_NET_DEVICES ; Check if device number exists |
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201 | jge .doesnt_exist |
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202 | |||
203 | mov esi, ebx |
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204 | and esi, 0x0000ff00 |
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205 | shr esi, 6 |
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206 | |||
207 | cmp dword [esi + ETH_DRV_LIST], 0 ; check if driver is running |
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208 | je .doesnt_exist |
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209 | |||
210 | test bl, bl ; 0 = Get device type (ethernet/token ring/...) |
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211 | jnz @f |
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212 | |||
213 | ;TODO: write code here |
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214 | |||
215 | |||
216 | @@: |
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217 | dec bl ; 1 = Get device name |
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218 | jnz @f |
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219 | |||
220 | mov esi, [esi + ETH_DRV_LIST] |
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221 | mov esi, [esi + ETH_DEVICE.name] |
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222 | mov edi, ecx |
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223 | |||
224 | mov ecx, 64 ; max length |
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225 | repnz movsb |
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226 | |||
227 | ret |
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228 | |||
229 | ; TODO: create function wich outputs number of active network devices |
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230 | |||
231 | @@: |
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232 | .doesnt_exist: |
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233 | DEBUGF 1,"sys_network: invalid device/function specified!\n" |
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234 | mov eax, -1 |
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235 | |||
236 | ret |
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237 | |||
238 | |||
239 | |||
240 | |||
241 | ;---------------------------------------------------------------- |
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242 | ; |
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1171 | hidnplayr | 243 | ; System Function To work with Protocols (75) |
1159 | hidnplayr | 244 | ; |
245 | ;---------------------------------------------------------------- |
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246 | |||
247 | align 4 |
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248 | sys_protocols: |
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249 | cmp bh, MAX_NET_DEVICES ; Check if device number exists |
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250 | jge .doesnt_exist |
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251 | |||
252 | mov esi, ebx |
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253 | and esi, 0x0000ff00 |
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254 | shr esi, 6 |
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1171 | hidnplayr | 255 | cmp dword [esi + ETH_DRV_LIST], 0 ; check if driver is running TODO: check other lists too |
1159 | hidnplayr | 256 | je .doesnt_exist |
257 | |||
258 | push .return ; return address (we will be using jumps instead of calls) |
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259 | |||
260 | mov eax, ebx ; set ax to protocol number |
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261 | shr eax, 16 ; |
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262 | |||
263 | cmp ax , IP_PROTO_IP |
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264 | je IPv4_API |
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265 | |||
266 | cmp ax , IP_PROTO_ICMP |
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267 | je ICMP_API |
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268 | |||
269 | cmp ax , IP_PROTO_UDP |
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270 | je UDP_API |
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271 | |||
1171 | hidnplayr | 272 | cmp ax , IP_PROTO_TCP |
1159 | hidnplayr | 273 | ; je TCP_API |
274 | |||
1171 | hidnplayr | 275 | cmp ax , ETHER_ARP |
1159 | hidnplayr | 276 | je ARP_API |
277 | |||
1171 | hidnplayr | 278 | cmp ax , 1337 |
1159 | hidnplayr | 279 | je ETH_API |
280 | |||
1171 | hidnplayr | 281 | add esp, 4 ; if we reached here, no function was called, so we need to balance stack |
1159 | hidnplayr | 282 | |
283 | .doesnt_exist: |
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1171 | hidnplayr | 284 | DEBUGF 1,"sys_protocols: protocol %u doesnt exist on device %u!\n",ax, bh |
1159 | hidnplayr | 285 | mov eax, -1 |
286 | |||
287 | .return: |
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1171 | hidnplayr | 288 | mov [esp+28+4], eax |
1159 | hidnplayr | 289 | ret |