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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 | |
1206 | hidnplayr | 20 | $Revision: 1206 $ |
1159 | hidnplayr | 21 | |
22 | uglobal |
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23 | last_1sTick db ? |
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24 | last_1hsTick dd ? |
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25 | endg |
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26 | |||
27 | MAX_NET_DEVICES equ 16 |
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28 | |||
1185 | hidnplayr | 29 | MIN_EPHEMERAL_PORT equ 49152 |
30 | MAX_EPHEMERAL_PORT equ 61000 |
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1159 | hidnplayr | 31 | |
1185 | hidnplayr | 32 | ETHER equ 1337 |
33 | ETHER_ARP equ 0x0608 |
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34 | |||
1159 | hidnplayr | 35 | ;AF_UNSPEC equ 0 |
36 | ;AF_UNIX equ 1 |
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37 | AF_INET4 equ 2 |
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38 | ;AF_AX25 equ 3 |
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39 | ;AF_IPX equ 4 |
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40 | ;AF_APPLETALK equ 5 |
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41 | ;AF_NETROM equ 6 |
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42 | ;AF_BRIDGE equ 7 |
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43 | ;AF_AAL5 equ 8 |
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44 | ;AF_X25 equ 9 |
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45 | ;AF_INET6 equ 10 |
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46 | ;AF_MAX equ 12 |
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47 | |||
48 | IP_PROTO_IP equ 0 |
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49 | IP_PROTO_ICMP equ 1 |
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50 | IP_PROTO_TCP equ 6 |
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51 | IP_PROTO_UDP equ 17 |
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52 | |||
1200 | hidnplayr | 53 | ; Socket types |
54 | SOCK_STREAM = 1 |
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55 | SOCK_DGRAM = 2 |
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56 | SOCK_RAW = 3 |
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57 | |||
1185 | hidnplayr | 58 | ; TCP opening modes |
59 | SOCKET_PASSIVE equ 0 |
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60 | SOCKET_ACTIVE equ 1 |
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1159 | hidnplayr | 61 | |
62 | include "queue.inc" |
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1187 | hidnplayr | 63 | include "ARP.inc" |
64 | include "IPv4.inc" |
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1159 | hidnplayr | 65 | include "ethernet.inc" |
66 | include "socket.inc" |
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1185 | hidnplayr | 67 | ;include "tcp.inc" |
68 | include "udp.inc" |
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69 | include "icmp.inc" |
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1159 | hidnplayr | 70 | |
71 | ;----------------------------------------------- |
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72 | ; |
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73 | ; stack_init |
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74 | ; |
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75 | ; This function calls all network init procedures |
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76 | ; |
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77 | ; IN: / |
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78 | ; OUT: / |
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79 | ; |
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80 | ;----------------------------------------------- |
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81 | |||
82 | align 4 |
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83 | stack_init: |
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84 | |||
85 | call ETH_init |
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86 | call IPv4_init |
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87 | call ARP_init |
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88 | call UDP_init |
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89 | call ICMP_init |
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90 | call socket_init |
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91 | |||
92 | mov al, 0x0 ; set up 1s timer |
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93 | out 0x70, al |
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94 | in al, 0x71 |
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95 | mov [last_1sTick], al |
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96 | |||
97 | ret |
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98 | |||
99 | |||
100 | |||
101 | ;----------------------------------------------- |
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102 | ; |
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103 | ; stack_handler |
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104 | ; |
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105 | ; This function calls all network init procedures |
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106 | ; |
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107 | ; IN: / |
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108 | ; OUT: / |
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109 | ; |
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110 | ;----------------------------------------------- |
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111 | |||
112 | align 4 |
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113 | stack_handler: |
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114 | |||
115 | cmp [ETH_RUNNING], 0 |
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116 | je .exit |
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117 | |||
1196 | hidnplayr | 118 | call ETH_handler ; handle all queued ethernet packets |
1159 | hidnplayr | 119 | call ETH_send_queued |
120 | |||
121 | ; Test for 10ms tick, call tcp timer |
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122 | mov eax, [timer_ticks] |
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123 | cmp eax, [last_1hsTick] |
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1185 | hidnplayr | 124 | je .exit |
1159 | hidnplayr | 125 | |
126 | mov [last_1hsTick], eax |
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1193 | hidnplayr | 127 | ; call tcp_tx_handler |
1159 | hidnplayr | 128 | |
129 | .sec_tick: |
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130 | |||
131 | ; Test for 1 second event, call 1s timer functions |
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132 | mov al, 0x0 ;second |
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133 | out 0x70, al |
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134 | in al, 0x71 |
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135 | cmp al, [last_1sTick] |
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136 | je .exit |
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137 | |||
138 | mov [last_1sTick], al |
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139 | |||
1187 | hidnplayr | 140 | call ARP_decrease_entry_ttls |
1159 | hidnplayr | 141 | call IPv4_decrease_fragment_ttls |
1193 | hidnplayr | 142 | ; call tcp_tcb_handler |
1159 | hidnplayr | 143 | |
144 | .exit: |
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145 | ret |
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146 | |||
147 | |||
148 | |||
149 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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150 | ;; Checksum [by Johnny_B] |
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151 | ;; IN: |
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152 | ;; buf_ptr=POINTER to buffer |
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153 | ;; buf_size=SIZE of buffer |
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154 | ;; OUT: |
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155 | ;; AX=16-bit checksum |
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156 | ;; Saves all used registers |
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157 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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158 | proc checksum_jb stdcall uses ebx esi ecx,\ |
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159 | buf_ptr:DWORD, buf_size:DWORD |
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160 | |||
161 | xor eax, eax |
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162 | xor ebx, ebx ;accumulator |
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163 | mov esi, dword[buf_ptr] |
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164 | mov ecx, dword[buf_size] |
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165 | shr ecx, 1 ; ecx=ecx/2 |
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166 | jnc @f ; if CF==0 then size is even number |
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167 | mov bh, byte[esi + ecx*2] |
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168 | @@: |
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169 | cld |
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170 | |||
171 | .loop: |
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172 | lodsw ;eax=word[esi],esi=esi+2 |
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173 | xchg ah,al ;cause must be a net byte-order |
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174 | add ebx, eax |
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175 | loop .loop |
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176 | |||
177 | mov eax, ebx |
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178 | shr eax, 16 |
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179 | add ax, bx |
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180 | not ax |
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181 | |||
182 | ret |
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183 | endp |
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184 | |||
185 | |||
186 | |||
187 | ;---------------------------------------------------------------- |
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188 | ; |
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1171 | hidnplayr | 189 | ; System function to work with network devices (73) |
1159 | hidnplayr | 190 | ; |
191 | ;---------------------------------------------------------------- |
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192 | |||
193 | align 4 |
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194 | sys_network: |
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195 | |||
1196 | hidnplayr | 196 | cmp ebx, -1 |
197 | jne @f |
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198 | |||
199 | mov eax, [ETH_RUNNING] |
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200 | jmp .return |
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201 | |||
202 | @@: |
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1159 | hidnplayr | 203 | cmp bh, MAX_NET_DEVICES ; Check if device number exists |
204 | jge .doesnt_exist |
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205 | |||
206 | mov esi, ebx |
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207 | and esi, 0x0000ff00 |
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208 | shr esi, 6 |
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209 | |||
210 | cmp dword [esi + ETH_DRV_LIST], 0 ; check if driver is running |
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211 | je .doesnt_exist |
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212 | |||
213 | test bl, bl ; 0 = Get device type (ethernet/token ring/...) |
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214 | jnz @f |
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1196 | hidnplayr | 215 | ; todo |
1192 | hidnplayr | 216 | xor eax, eax |
217 | jmp .return |
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1159 | hidnplayr | 218 | |
219 | |||
220 | @@: |
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221 | dec bl ; 1 = Get device name |
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222 | jnz @f |
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223 | |||
224 | mov esi, [esi + ETH_DRV_LIST] |
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225 | mov esi, [esi + ETH_DEVICE.name] |
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226 | mov edi, ecx |
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227 | |||
228 | mov ecx, 64 ; max length |
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229 | repnz movsb |
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230 | |||
1192 | hidnplayr | 231 | xor eax, eax |
232 | jmp .return |
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1159 | hidnplayr | 233 | |
1192 | hidnplayr | 234 | @@: |
1159 | hidnplayr | 235 | |
1192 | hidnplayr | 236 | dec bl ; 2 = Reset the device |
237 | jnz @f |
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238 | |||
239 | mov esi, [esi + ETH_DRV_LIST] |
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240 | call [esi + ETH_DEVICE.reset] |
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241 | jmp .return |
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242 | |||
1159 | hidnplayr | 243 | @@: |
1192 | hidnplayr | 244 | |
245 | dec bl ; 3 = Stop driver for this device |
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246 | jnz @f |
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247 | |||
248 | mov esi, [esi + ETH_DRV_LIST] |
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249 | call [esi + ETH_DEVICE.unload] |
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250 | jmp .return |
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251 | |||
252 | @@: |
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253 | |||
1159 | hidnplayr | 254 | .doesnt_exist: |
255 | DEBUGF 1,"sys_network: invalid device/function specified!\n" |
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256 | mov eax, -1 |
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257 | |||
1192 | hidnplayr | 258 | .return: |
259 | mov [esp+28+4], eax |
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1159 | hidnplayr | 260 | ret |
261 | |||
262 | |||
263 | ;---------------------------------------------------------------- |
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264 | ; |
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1171 | hidnplayr | 265 | ; System Function To work with Protocols (75) |
1159 | hidnplayr | 266 | ; |
267 | ;---------------------------------------------------------------- |
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268 | |||
269 | align 4 |
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270 | sys_protocols: |
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271 | cmp bh, MAX_NET_DEVICES ; Check if device number exists |
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272 | jge .doesnt_exist |
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273 | |||
274 | mov esi, ebx |
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275 | and esi, 0x0000ff00 |
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276 | shr esi, 6 |
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1171 | hidnplayr | 277 | cmp dword [esi + ETH_DRV_LIST], 0 ; check if driver is running TODO: check other lists too |
1159 | hidnplayr | 278 | je .doesnt_exist |
279 | |||
280 | push .return ; return address (we will be using jumps instead of calls) |
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281 | |||
282 | mov eax, ebx ; set ax to protocol number |
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283 | shr eax, 16 ; |
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284 | |||
285 | cmp ax , IP_PROTO_IP |
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286 | je IPv4_API |
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287 | |||
288 | cmp ax , IP_PROTO_ICMP |
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289 | je ICMP_API |
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290 | |||
291 | cmp ax , IP_PROTO_UDP |
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292 | je UDP_API |
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293 | |||
1171 | hidnplayr | 294 | cmp ax , IP_PROTO_TCP |
1159 | hidnplayr | 295 | ; je TCP_API |
296 | |||
1171 | hidnplayr | 297 | cmp ax , ETHER_ARP |
1159 | hidnplayr | 298 | je ARP_API |
299 | |||
1185 | hidnplayr | 300 | cmp ax , ETHER |
1159 | hidnplayr | 301 | je ETH_API |
302 | |||
1171 | hidnplayr | 303 | add esp, 4 ; if we reached here, no function was called, so we need to balance stack |
1159 | hidnplayr | 304 | |
305 | .doesnt_exist: |
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1171 | hidnplayr | 306 | DEBUGF 1,"sys_protocols: protocol %u doesnt exist on device %u!\n",ax, bh |
1159 | hidnplayr | 307 | mov eax, -1 |
308 | |||
309 | .return: |
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1171 | hidnplayr | 310 | mov [esp+28+4], eax |
1159 | hidnplayr | 311 | ret |