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431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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6 | ;; STACK.INC ;; |
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7 | ;; ;; |
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8 | ;; TCP/IP stack for Menuet OS ;; |
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9 | ;; ;; |
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10 | ;; Version 0.7 4th July 2004 ;; |
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11 | ;; ;; |
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12 | ;; Copyright 2002 Mike Hibbett, mikeh@oceanfree.net ;; |
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13 | ;; ;; |
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14 | ;; See file COPYING for details ;; |
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15 | ;; ;; |
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16 | ;; Version 0.7 ;; |
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17 | ;; Added a timer per socket to allow delays when rx window ;; |
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18 | ;; gets below 1KB ;; |
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19 | ;; ;; |
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20 | ;;10.01.2007 Bugfix for checksum function from Paolo Franchetti ;; |
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21 | ;; ;; |
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22 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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1 | ha | 23 | |
593 | mikedld | 24 | $Revision: 593 $ |
1 | ha | 25 | |
261 | hidnplayr | 26 | |
1 | ha | 27 | ;******************************************************************* |
28 | ; Interface |
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29 | ; The interfaces defined in ETHERNET.INC plus: |
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30 | ; stack_init |
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31 | ; stack_handler |
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32 | ; app_stack_handler |
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33 | ; app_socket_handler |
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34 | ; checksum |
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35 | ; |
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36 | ;******************************************************************* |
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37 | |||
261 | hidnplayr | 38 | uglobal |
39 | StackCounters: |
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40 | dumped_rx_count: dd 0 |
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41 | arp_tx_count: dd 0 |
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42 | arp_rx_count: dd 0 |
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302 | hidnplayr | 43 | ip_rx_count: dd 0 |
44 | ip_tx_count: dd 0 |
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261 | hidnplayr | 45 | endg |
1 | ha | 46 | |
261 | hidnplayr | 47 | ; socket buffers |
302 | hidnplayr | 48 | SOCKETBUFFSIZE equ 4096 ; state + config + buffer. |
49 | SOCKETHEADERSIZE equ 76 ; thus 4096 - SOCKETHEADERSIZE bytes data |
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1 | ha | 50 | |
302 | hidnplayr | 51 | NUM_SOCKETS equ 16 ; Number of open sockets supported. Was 20 |
1 | ha | 52 | |
261 | hidnplayr | 53 | ; IPBUFF status values |
302 | hidnplayr | 54 | BUFF_EMPTY equ 0 |
55 | BUFF_RX_FULL equ 1 |
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56 | BUFF_ALLOCATED equ 2 |
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57 | BUFF_TX_FULL equ 3 |
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1 | ha | 58 | |
302 | hidnplayr | 59 | NUM_IPBUFFERS equ 20 ; buffers allocated for TX/RX |
1 | ha | 60 | |
302 | hidnplayr | 61 | NUMQUEUES equ 4 |
62 | EMPTY_QUEUE equ 0 |
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63 | IPIN_QUEUE equ 1 |
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64 | IPOUT_QUEUE equ 2 |
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65 | NET1OUT_QUEUE equ 3 |
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1 | ha | 66 | |
302 | hidnplayr | 67 | NO_BUFFER equ 0xFFFF |
68 | IPBUFFSIZE equ 1500 ; MTU of an ethernet packet |
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69 | NUMQUEUEENTRIES equ NUM_IPBUFFERS |
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70 | NUMRESENDENTRIES equ 18 ; Buffers for TCP resend packets |
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1 | ha | 71 | |
72 | ; These are the 0x40 function codes for application access to the stack |
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73 | STACK_DRIVER_STATUS equ 52 |
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74 | SOCKET_INTERFACE equ 53 |
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75 | |||
76 | |||
77 | ; 128KB allocated for the stack and network driver buffers and other |
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78 | ; data requirements |
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412 | serge | 79 | ;stack_data_start equ 0x700000 |
80 | ;eth_data_start equ 0x700000 |
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81 | ;stack_data equ 0x704000 |
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82 | ;stack_data_end equ 0x71ffff |
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1 | ha | 83 | |
84 | ; 32 bit word |
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302 | hidnplayr | 85 | stack_config equ stack_data |
261 | hidnplayr | 86 | |
1 | ha | 87 | ; 32 bit word - IP Address in network format |
302 | hidnplayr | 88 | stack_ip equ stack_data + 4 |
261 | hidnplayr | 89 | |
1 | ha | 90 | ; 1 byte. 0 == inactive, 1 = active |
91 | ethernet_active equ stack_data + 9 |
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261 | hidnplayr | 92 | |
93 | |||
94 | ; TODO :: empty memory area |
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95 | |||
1 | ha | 96 | ; Address of selected socket |
302 | hidnplayr | 97 | sktAddr equ stack_data + 32 |
1 | ha | 98 | ; Parameter to checksum routine - data ptr |
302 | hidnplayr | 99 | checkAdd1 equ stack_data + 36 |
1 | ha | 100 | ; Parameter to checksum routine - 2nd data ptr |
302 | hidnplayr | 101 | checkAdd2 equ stack_data + 40 |
1 | ha | 102 | ; Parameter to checksum routine - data size |
302 | hidnplayr | 103 | checkSize1 equ stack_data + 44 |
1 | ha | 104 | ; Parameter to checksum routine - 2nd data size |
302 | hidnplayr | 105 | checkSize2 equ stack_data + 46 |
1 | ha | 106 | ; result of checksum routine |
302 | hidnplayr | 107 | checkResult equ stack_data + 48 |
1 | ha | 108 | |
109 | ; holds the TCP/UDP pseudo header. SA|DA|0|prot|UDP len| |
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302 | hidnplayr | 110 | pseudoHeader equ stack_data + 50 |
1 | ha | 111 | |
112 | ; receive and transmit IP buffer allocation |
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302 | hidnplayr | 113 | sockets equ stack_data + 62 |
114 | Next_free2 equ sockets + (SOCKETBUFFSIZE * NUM_SOCKETS) |
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1 | ha | 115 | ; 1560 byte buffer for rx / tx ethernet packets |
302 | hidnplayr | 116 | Ether_buffer equ Next_free2 |
117 | Next_free3 equ Ether_buffer + 1518 |
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261 | hidnplayr | 118 | last_1sTick equ Next_free3 |
302 | hidnplayr | 119 | IPbuffs equ Next_free3 + 1 |
120 | queues equ IPbuffs + ( NUM_IPBUFFERS * IPBUFFSIZE ) |
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121 | queueList equ queues + (2 * NUMQUEUES) |
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122 | last_1hsTick equ queueList + ( 2 * NUMQUEUEENTRIES ) |
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1 | ha | 123 | |
124 | ;resendQ equ queueList + ( 2 * NUMQUEUEENTRIES ) |
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125 | ;resendBuffer equ resendQ + ( 4 * NUMRESENDENTRIES ) ; for TCP |
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126 | ; equ resendBuffer + ( IPBUFFSIZE * NUMRESENDENTRIES ) |
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127 | |||
128 | |||
129 | |||
412 | serge | 130 | ;resendQ equ 0x770000 |
302 | hidnplayr | 131 | resendBuffer equ resendQ + ( 4 * NUMRESENDENTRIES ) ; for TCP |
1 | ha | 132 | |
133 | |||
261 | hidnplayr | 134 | ; simple macro for memory set operation |
135 | macro _memset_dw adr,value,amount |
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136 | { |
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302 | hidnplayr | 137 | mov edi, adr |
138 | mov ecx, amount |
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261 | hidnplayr | 139 | if value = 0 |
140 | xor eax, eax |
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141 | else |
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142 | mov eax, value |
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143 | end if |
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144 | cld |
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302 | hidnplayr | 145 | rep stosd |
261 | hidnplayr | 146 | } |
147 | |||
148 | |||
149 | ; Below, the main network layer source code is included |
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150 | ; |
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151 | include "queue.inc" |
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152 | include "eth_drv/ethernet.inc" |
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153 | include "ip.inc" |
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154 | include "icmp.inc" |
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155 | include "tcp.inc" |
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156 | include "udp.inc" |
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157 | include "socket.inc" |
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158 | |||
1 | ha | 159 | ;*************************************************************************** |
160 | ; Function |
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161 | ; stack_init |
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162 | ; |
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163 | ; Description |
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164 | ; Clear all allocated memory to zero. This ensures that |
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165 | ; on startup, the stack is inactive, and consumes no resources |
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166 | ; This is a kernel function, called prior to the OS main loop |
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167 | ; in set_variables |
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168 | ; |
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169 | ;*************************************************************************** |
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261 | hidnplayr | 170 | |
1 | ha | 171 | stack_init: |
261 | hidnplayr | 172 | ; Init two address spaces with default values |
173 | _memset_dw stack_data_start, 0, 0x20000/4 |
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174 | _memset_dw resendQ, 0xFFFFFFFF, NUMRESENDENTRIES |
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1 | ha | 175 | |
261 | hidnplayr | 176 | ; Queries initialization |
177 | call queueInit |
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1 | ha | 178 | |
261 | hidnplayr | 179 | ; The following block sets up the 1s timer |
180 | mov al, 0x0 |
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181 | out 0x70, al |
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182 | in al, 0x71 |
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183 | mov [last_1sTick], al |
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184 | ret |
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1 | ha | 185 | |
186 | |||
187 | |||
188 | ;*************************************************************************** |
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189 | ; Function |
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190 | ; stack_handler |
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191 | ; |
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192 | ; Description |
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193 | ; The kernel loop routine for the stack |
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194 | ; This is a kernel function, called in the main loop |
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195 | ; |
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196 | ;*************************************************************************** |
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197 | stack_handler: |
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198 | |||
199 | call ethernet_driver |
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200 | call ip_rx |
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201 | |||
202 | |||
203 | ; Test for 10ms tick, call tcp timer |
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204 | mov eax, [timer_ticks] ;[0xfdf0] |
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205 | cmp eax, [last_1hsTick] |
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302 | hidnplayr | 206 | je sh_001 |
1 | ha | 207 | |
208 | mov [last_1hsTick], eax |
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209 | call tcp_tx_handler |
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210 | |||
211 | sh_001: |
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212 | |||
213 | ; Test for 1 second event, call 1s timer functions |
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261 | hidnplayr | 214 | mov al, 0x0 ;second |
215 | out 0x70, al |
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302 | hidnplayr | 216 | in al, 0x71 |
1 | ha | 217 | cmp al, [last_1sTick] |
302 | hidnplayr | 218 | je sh_exit |
1 | ha | 219 | |
220 | mov [last_1sTick], al |
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221 | |||
379 | serge | 222 | stdcall arp_table_manager, ARP_TABLE_TIMER, 0, 0 |
1 | ha | 223 | call tcp_tcb_handler |
224 | |||
225 | sh_exit: |
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226 | ret |
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227 | |||
261 | hidnplayr | 228 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
229 | ;; Checksum [by Johnny_B] |
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230 | ;; IN: |
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231 | ;; buf_ptr=POINTER to buffer |
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232 | ;; buf_size=SIZE of buffer |
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233 | ;; OUT: |
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234 | ;; AX=16-bit checksum |
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235 | ;; Saves all used registers |
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236 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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237 | proc checksum_jb stdcall uses ebx esi ecx,\ |
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238 | buf_ptr:DWORD, buf_size:DWORD |
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1 | ha | 239 | |
261 | hidnplayr | 240 | xor eax, eax |
241 | xor ebx, ebx ;accumulator |
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242 | mov esi, dword[buf_ptr] |
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243 | mov ecx, dword[buf_size] |
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244 | shr ecx, 1 ; ecx=ecx/2 |
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302 | hidnplayr | 245 | jnc @f ; if CF==0 then size is even number |
261 | hidnplayr | 246 | mov bh, byte[esi + ecx*2] |
247 | @@: |
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248 | cld |
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1 | ha | 249 | |
261 | hidnplayr | 250 | .loop: |
251 | lodsw ;eax=word[esi],esi=esi+2 |
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252 | xchg ah,al ;cause must be a net byte-order |
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253 | add ebx, eax |
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254 | loop .loop |
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1 | ha | 255 | |
261 | hidnplayr | 256 | mov eax, ebx |
257 | shr eax, 16 |
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258 | add ax, bx |
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259 | not ax |
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1 | ha | 260 | |
261 | ret |
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261 | hidnplayr | 262 | endp |
1 | ha | 263 | |
264 | ;*************************************************************************** |
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265 | ; Function |
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266 | ; checksum |
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267 | ; |
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268 | ; Description |
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269 | ; checkAdd1,checkAdd2, checkSize1, checkSize2, checkResult |
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270 | ; Dont break anything; Most registers are used by the caller |
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271 | ; This code is derived from the 'C' source, cksum.c, in the book |
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272 | ; Internetworking with TCP/IP Volume II by D.E. Comer |
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273 | ; |
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274 | ;*************************************************************************** |
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261 | hidnplayr | 275 | |
276 | |||
1 | ha | 277 | checksum: |
278 | pusha |
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323 | hidnplayr | 279 | mov eax, [checkAdd1] |
302 | hidnplayr | 280 | xor edx, edx ; edx is the accumulative checksum |
1 | ha | 281 | xor ebx, ebx |
282 | mov cx, [checkSize1] |
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283 | shr cx, 1 |
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302 | hidnplayr | 284 | jz cs1_1 |
1 | ha | 285 | |
286 | cs1: |
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287 | mov bh, [eax] |
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288 | mov bl, [eax + 1] |
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289 | |||
290 | add eax, 2 |
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291 | add edx, ebx |
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292 | |||
293 | loopw cs1 |
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294 | |||
295 | cs1_1: |
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296 | and word [checkSize1], 0x01 |
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302 | hidnplayr | 297 | jz cs_test2 |
1 | ha | 298 | |
299 | mov bh, [eax] |
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300 | xor bl, bl |
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301 | |||
302 | add edx, ebx |
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303 | |||
304 | cs_test2: |
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305 | mov cx, [checkSize2] |
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306 | cmp cx, 0 |
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302 | hidnplayr | 307 | jz cs_exit ; Finished if no 2nd buffer |
1 | ha | 308 | |
323 | hidnplayr | 309 | mov eax, [checkAdd2] |
310 | |||
1 | ha | 311 | shr cx, 1 |
302 | hidnplayr | 312 | jz cs2_1 |
1 | ha | 313 | |
314 | cs2: |
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315 | mov bh, [eax] |
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316 | mov bl, [eax + 1] |
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317 | |||
318 | add eax, 2 |
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319 | add edx, ebx |
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320 | |||
321 | loopw cs2 |
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322 | |||
323 | cs2_1: |
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324 | and word [checkSize2], 0x01 |
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302 | hidnplayr | 325 | jz cs_exit |
1 | ha | 326 | |
327 | mov bh, [eax] |
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328 | xor bl, bl |
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329 | |||
330 | add edx, ebx |
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331 | |||
332 | cs_exit: |
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333 | mov ebx, edx |
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334 | |||
335 | shr ebx, 16 |
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336 | and edx, 0xffff |
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337 | add edx, ebx |
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338 | mov eax, edx |
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339 | shr eax, 16 |
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340 | add edx, eax |
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341 | not dx |
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342 | |||
343 | mov [checkResult], dx |
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344 | popa |
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345 | ret |
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346 | |||
347 | |||
348 | |||
349 | |||
350 | ;*************************************************************************** |
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351 | ; Function |
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352 | ; app_stack_handler |
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353 | ; |
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354 | ; Description |
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261 | hidnplayr | 355 | ; This is an application service, called by int 0x40, function 52 |
1 | ha | 356 | ; It provides application access to the network interface layer |
357 | ; |
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358 | ;*************************************************************************** |
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359 | app_stack_handler: |
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360 | cmp eax, 0 |
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361 | jnz not0 |
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261 | hidnplayr | 362 | ; Read the configuration word |
1 | ha | 363 | mov eax, [stack_config] |
364 | ret |
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365 | |||
366 | not0: |
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367 | cmp eax, 1 |
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368 | jnz not1 |
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369 | ; read the IP address |
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370 | |||
371 | mov eax, [stack_ip] |
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372 | ret |
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373 | |||
374 | not1: |
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375 | cmp eax, 2 |
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376 | jnz not2 |
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377 | |||
378 | ; write the configuration word |
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379 | mov [stack_config], ebx |
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380 | |||
381 | ; |
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382 | ; If ethernet now enabled, probe for the card, reset it and empty |
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383 | ; the packet buffer |
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384 | ; If all successfull, enable the card. |
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385 | ; If ethernet now disabled, set it as disabled. Should really |
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386 | ; empty the tcpip data area too. |
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387 | |||
388 | ; ethernet interface is '3' in ls 7 bits |
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389 | and bl, 0x7f |
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390 | cmp bl, 3 |
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391 | |||
302 | hidnplayr | 392 | je ash_eth_enable |
1 | ha | 393 | ; Ethernet isn't enabled, so make sure that the card is disabled |
394 | mov [ethernet_active], byte 0 |
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395 | |||
396 | ret |
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397 | |||
398 | ash_eth_enable: |
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399 | ; Probe for the card. This will reset it and enable the interface |
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400 | ; if found |
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401 | call eth_probe |
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402 | cmp eax, 0 |
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302 | hidnplayr | 403 | je ash_eth_done ; Abort if no hardware found |
1 | ha | 404 | |
405 | mov [ethernet_active], byte 1 |
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406 | |||
407 | ash_eth_done: |
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408 | ret |
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409 | |||
410 | not2: |
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411 | cmp eax, 3 |
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412 | jnz not3 |
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413 | ; write the IP Address |
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414 | mov [stack_ip], ebx |
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415 | ret |
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416 | |||
261 | hidnplayr | 417 | ;old functions was deleted |
418 | |||
1 | ha | 419 | not3: |
420 | cmp eax, 6 |
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421 | jnz not6 |
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422 | |||
423 | ; Insert an IP packet into the stacks received packet queue |
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424 | call stack_insert_packet |
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425 | ret |
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426 | |||
427 | not6: |
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428 | cmp eax, 7 |
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429 | jnz not7 |
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430 | |||
431 | ; Test for any packets queued for transmission over the network |
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432 | |||
433 | not7: |
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434 | cmp eax, 8 |
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435 | jnz not8 |
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436 | |||
437 | call stack_get_packet |
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438 | ; Extract a packet queued for transmission by the network |
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439 | ret |
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440 | |||
441 | not8: |
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442 | cmp eax, 9 |
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443 | jnz not9 |
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444 | |||
445 | ; read the gateway IP address |
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446 | |||
447 | mov eax, [gateway_ip] |
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448 | ret |
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449 | |||
450 | not9: |
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451 | cmp eax, 10 |
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452 | jnz not10 |
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453 | |||
454 | ; read the subnet mask |
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455 | |||
456 | mov eax, [subnet_mask] |
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457 | ret |
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458 | |||
459 | not10: |
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460 | cmp eax, 11 |
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461 | jnz not11 |
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462 | |||
463 | ; write the gateway IP Address |
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464 | mov [gateway_ip], ebx |
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465 | |||
466 | ret |
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467 | |||
468 | not11: |
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469 | cmp eax, 12 |
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470 | jnz not12 |
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471 | |||
472 | ; write the subnet mask |
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473 | mov [subnet_mask], ebx |
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474 | |||
475 | |||
476 | not12: |
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477 | cmp eax, 13 |
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478 | jnz not13 |
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479 | |||
480 | ; read the dns |
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481 | |||
482 | mov eax, [dns_ip] |
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483 | ret |
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484 | |||
485 | not13: |
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486 | cmp eax, 14 |
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261 | hidnplayr | 487 | jnz not14 |
1 | ha | 488 | |
489 | ; write the dns IP Address |
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490 | mov [dns_ip], ebx |
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491 | |||
379 | serge | 492 | ret |
493 | |||
261 | hidnplayr | 494 | ; |
495 | not14: |
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496 | cmp eax, 15 |
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497 | jnz not15 |
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498 | |||
499 | ; in ebx we need 4 to read the last 2 bytes |
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500 | cmp ebx, dword 4 |
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501 | je read |
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379 | serge | 502 | |
261 | hidnplayr | 503 | ; or we need 0 to read the first 4 bytes |
504 | cmp ebx, dword 0 |
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505 | jnz param_error |
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506 | |||
507 | ; read MAC, returned (in mirrored byte order) in eax |
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508 | read: |
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509 | mov eax, [node_addr + ebx] |
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510 | jmp @f |
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379 | serge | 511 | |
512 | param_error: |
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261 | hidnplayr | 513 | mov eax, -1 ; params not accepted |
514 | @@: |
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515 | ret |
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516 | |||
379 | serge | 517 | |
261 | hidnplayr | 518 | ; 0 -> arp_probe |
519 | ; 1 -> arp_announce |
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520 | ; 2 -> arp_responce (not supported yet) |
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521 | |||
522 | not15: ; ARP stuff |
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523 | cmp eax, 16 |
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524 | jnz not16 |
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379 | serge | 525 | |
261 | hidnplayr | 526 | cmp ebx, 0 |
527 | je a_probe |
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379 | serge | 528 | |
261 | hidnplayr | 529 | cmp ebx, 1 |
530 | je a_ann ; arp announce |
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379 | serge | 531 | |
302 | hidnplayr | 532 | ; cmp ebx,2 |
533 | ; jne a_resp ; arp response |
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261 | hidnplayr | 534 | |
535 | jmp param15_error |
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379 | serge | 536 | |
537 | |||
261 | hidnplayr | 538 | ; arp probe, sender IP must be set to 0.0.0.0, target IP is set to address being probed |
539 | ; ecx: pointer to target MAC, MAC should set to 0 by application |
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540 | ; edx: target IP |
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541 | a_probe: |
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542 | push dword [stack_ip] |
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379 | serge | 543 | |
261 | hidnplayr | 544 | mov edx, [stack_ip] |
545 | mov [stack_ip], dword 0 |
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379 | serge | 546 | mov esi, ecx ; pointer to target MAC address |
261 | hidnplayr | 547 | call arp_request |
379 | serge | 548 | |
549 | pop dword [stack_ip] |
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302 | hidnplayr | 550 | jmp @f |
379 | serge | 551 | |
261 | hidnplayr | 552 | ; arp announce, sender IP must be set to target IP |
553 | ; ecx: pointer to target MAC |
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554 | a_ann: |
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555 | mov edx, [stack_ip] |
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556 | mov esi, ecx ; pointer to target MAC address |
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557 | call arp_request |
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558 | jmp @f |
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379 | serge | 559 | |
261 | hidnplayr | 560 | param15_error: |
561 | mov eax, -1 |
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379 | serge | 562 | |
261 | hidnplayr | 563 | @@: |
564 | ret |
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565 | ; |
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566 | ; modified by [smb] |
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567 | |||
568 | ; |
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569 | ; ARPTable manager interface |
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570 | not16: |
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571 | cmp eax, 17 |
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572 | jnz stack_driver_end |
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573 | |||
574 | ;see "proc arp_table_manager" for more details |
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575 | stdcall arp_table_manager,ebx,ecx,edx ;Opcode,Index,Extra |
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576 | |||
1 | ha | 577 | ret |
261 | hidnplayr | 578 | ; |
1 | ha | 579 | |
580 | stack_driver_end: |
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261 | hidnplayr | 581 | ret |
1 | ha | 582 | |
583 | |||
584 | |||
585 | ;*************************************************************************** |
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586 | ; Function |
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587 | ; app_socket_handler |
||
588 | ; |
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589 | ; Description |
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261 | hidnplayr | 590 | ; This is an application service, called by int 0x40, function 53 |
1 | ha | 591 | ; It provides application access to stack socket services |
592 | ; such as opening sockets |
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593 | ; |
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594 | ;*************************************************************************** |
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595 | app_socket_handler: |
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596 | cmp eax, 0 |
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597 | jnz nots0 |
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598 | |||
599 | call socket_open |
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600 | ret |
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601 | |||
602 | nots0: |
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603 | cmp eax, 1 |
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604 | jnz nots1 |
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605 | |||
606 | call socket_close |
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607 | ret |
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608 | |||
609 | nots1: |
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610 | cmp eax, 2 |
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611 | jnz nots2 |
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612 | |||
613 | call socket_poll |
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614 | ret |
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615 | |||
616 | nots2: |
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617 | cmp eax, 3 |
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618 | jnz nots3 |
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619 | |||
620 | call socket_read |
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621 | ret |
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622 | |||
623 | nots3: |
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624 | cmp eax, 4 |
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625 | jnz nots4 |
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626 | |||
627 | call socket_write |
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628 | ret |
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629 | |||
630 | nots4: |
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631 | cmp eax, 5 |
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632 | jnz nots5 |
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633 | |||
634 | call socket_open_tcp |
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635 | ret |
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636 | |||
637 | nots5: |
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638 | cmp eax, 6 |
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639 | jnz nots6 |
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640 | |||
641 | call socket_status |
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642 | ret |
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643 | |||
644 | nots6: |
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645 | cmp eax, 7 |
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646 | jnz nots7 |
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647 | |||
648 | call socket_write_tcp |
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649 | ret |
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650 | |||
651 | nots7: |
||
652 | cmp eax, 8 |
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653 | jnz nots8 |
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654 | |||
655 | call socket_close_tcp |
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656 | ret |
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657 | |||
658 | nots8: |
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659 | cmp eax, 9 |
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660 | jnz nots9 |
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661 | |||
662 | call is_localport_unused |
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663 | ret |
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664 | |||
665 | nots9: |
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302 | hidnplayr | 666 | cmp eax, 10 |
667 | jnz nots10 |
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668 | |||
669 | mov eax,dword[drvr_cable] |
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670 | test eax,eax |
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671 | jnz @f ; if function is not implented, return -1 |
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672 | mov al,-1 |
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673 | ret |
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674 | |||
675 | @@: |
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676 | call dword[drvr_cable] |
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677 | ret |
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678 | |||
679 | |||
680 | nots10: |
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323 | hidnplayr | 681 | cmp eax, 11 |
682 | jnz nots11 |
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683 | |||
684 | call socket_read_packet |
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685 | ret |
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686 | |||
687 | nots11: |
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1 | ha | 688 | cmp eax, 254 |
689 | jnz notdump |
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690 | |||
691 | ret |
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692 | |||
693 | notdump: |
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694 | cmp eax, 255 |
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695 | jnz notsdebug |
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696 | |||
697 | ; This sub function allows access to debugging information on the stack |
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698 | ; ebx holds the request: |
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699 | ; 100 : return length of empty queue |
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700 | ; 101 : return length of IPOUT QUEUE |
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701 | ; 102 : return length of IPIN QUEUE |
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702 | ; 103 : return length of NET1OUT QUEUE |
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703 | ; 200 : return # of ARP entries |
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704 | ; 201 : return size of ARP table ( max # entries ) |
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705 | ; 202 : select ARP table entry # |
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706 | ; 203 : return IP of selected table entry |
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707 | ; 204 : return High 4 bytes of MAC address of selected table entry |
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708 | ; 205 : return low 2 bytes of MAC address of selected table entry |
||
709 | ; 206 : return status word of selected table entry |
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710 | ; 207 : return Time to live of selected table entry |
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711 | |||
712 | |||
713 | ; 2 : return number of IP packets received |
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714 | ; 3 : return number of packets transmitted |
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715 | ; 4 : return number of received packets dumped |
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716 | ; 5 : return number of arp packets received |
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717 | ; 6 : return status of packet driver |
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718 | ; ( 0 == not active, FFFFFFFF = successful ) |
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719 | |||
720 | call stack_internal_status |
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721 | ret |
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722 | |||
723 | notsdebug: |
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724 | ; Invalid Option |
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725 | ret |
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726 | |||
727 | |||
728 | uglobal |
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729 | ARPTmp: |
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730 | times 14 db 0 |
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731 | endg |
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732 | |||
733 | ;*************************************************************************** |
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734 | ; Function |
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735 | ; stack_internal_status |
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736 | ; |
||
737 | ; Description |
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738 | ; Returns information about the internal status of the stack |
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739 | ; This is only useful for debugging |
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740 | ; It works with the ethernet driver |
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741 | ; sub function in ebx |
||
742 | ; return requested data in eax |
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743 | ; |
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744 | ;*************************************************************************** |
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745 | stack_internal_status: |
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746 | cmp ebx, 100 |
||
747 | jnz notsis100 |
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748 | |||
749 | ; 100 : return length of EMPTY QUEUE |
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750 | mov ebx, EMPTY_QUEUE |
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751 | call queueSize |
||
752 | ret |
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753 | |||
754 | notsis100: |
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755 | cmp ebx, 101 |
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756 | jnz notsis101 |
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757 | |||
758 | ; 101 : return length of IPOUT QUEUE |
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759 | mov ebx, IPOUT_QUEUE |
||
760 | call queueSize |
||
761 | ret |
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762 | |||
763 | notsis101: |
||
764 | cmp ebx, 102 |
||
765 | jnz notsis102 |
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766 | |||
767 | ; 102 : return length of IPIN QUEUE |
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768 | mov ebx, IPIN_QUEUE |
||
769 | call queueSize |
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770 | ret |
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771 | |||
772 | notsis102: |
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773 | cmp ebx, 103 |
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774 | jnz notsis103 |
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775 | |||
776 | ; 103 : return length of NET1OUT QUEUE |
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777 | mov ebx, NET1OUT_QUEUE |
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778 | call queueSize |
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779 | ret |
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780 | |||
781 | notsis103: |
||
782 | cmp ebx, 200 |
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783 | jnz notsis200 |
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784 | |||
785 | ; 200 : return num entries in arp table |
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786 | movzx eax, byte [NumARP] |
||
787 | ret |
||
788 | |||
789 | notsis200: |
||
790 | cmp ebx, 201 |
||
791 | jnz notsis201 |
||
792 | |||
793 | ; 201 : return arp table size |
||
794 | mov eax, 20 ; ARP_TABLE_SIZE |
||
795 | ret |
||
796 | |||
797 | notsis201: |
||
798 | cmp ebx, 202 |
||
799 | jnz notsis202 |
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800 | |||
801 | ; 202 - read the requested table entry |
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802 | ; into a temporary buffer |
||
803 | ; ecx holds the entry number |
||
804 | |||
805 | mov eax, ecx |
||
806 | mov ecx, 14 ; ARP_ENTRY_SIZE |
||
807 | mul ecx |
||
808 | |||
809 | mov ecx, [eax + ARPTable] |
||
810 | mov [ARPTmp], ecx |
||
811 | mov ecx, [eax + ARPTable+4] |
||
812 | mov [ARPTmp+4], ecx |
||
813 | mov ecx, [eax + ARPTable+8] |
||
814 | mov [ARPTmp+8], ecx |
||
815 | mov cx, [eax + ARPTable+12] |
||
816 | mov [ARPTmp+12], cx |
||
817 | ret |
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818 | |||
819 | notsis202: |
||
820 | cmp ebx, 203 |
||
821 | jnz notsis203 |
||
822 | |||
823 | ; 203 - return IP address |
||
824 | mov eax, [ARPTmp] |
||
825 | ret |
||
826 | |||
827 | notsis203: |
||
828 | cmp ebx, 204 |
||
829 | jnz notsis204 |
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830 | |||
831 | ; 204 - return MAC high dword |
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832 | mov eax, [ARPTmp+4] |
||
833 | ret |
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834 | |||
835 | notsis204: |
||
836 | cmp ebx, 205 |
||
837 | jnz notsis205 |
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838 | |||
839 | ; 205 - return MAC ls word |
||
840 | movzx eax, word [ARPTmp+8] |
||
841 | ret |
||
842 | |||
843 | notsis205: |
||
844 | cmp ebx, 206 |
||
845 | jnz notsis206 |
||
846 | |||
847 | ; 206 - return status word |
||
848 | movzx eax, word [ARPTmp+10] |
||
849 | ret |
||
850 | |||
851 | notsis206: |
||
852 | cmp ebx, 207 |
||
853 | jnz notsis207 |
||
854 | |||
855 | ; 207 - return ttl word |
||
856 | movzx eax, word [ARPTmp+12] |
||
857 | ret |
||
858 | |||
859 | notsis207: |
||
860 | cmp ebx, 2 |
||
861 | jnz notsis2 |
||
862 | |||
863 | ; 2 : return number of IP packets received |
||
864 | mov eax, [ip_rx_count] |
||
865 | ret |
||
866 | |||
867 | notsis2: |
||
868 | cmp ebx, 3 |
||
869 | jnz notsis3 |
||
870 | |||
871 | ; 3 : return number of packets transmitted |
||
872 | mov eax, [ip_tx_count] |
||
873 | ret |
||
874 | |||
875 | notsis3: |
||
876 | cmp ebx, 4 |
||
877 | jnz notsis4 |
||
878 | |||
879 | ; 4 : return number of received packets dumped |
||
880 | mov eax, [dumped_rx_count] |
||
881 | ret |
||
882 | |||
883 | notsis4: |
||
884 | cmp ebx, 5 |
||
885 | jnz notsis5 |
||
886 | |||
887 | ; 5 : return number of arp packets received |
||
888 | mov eax, [arp_rx_count] |
||
889 | ret |
||
890 | |||
891 | notsis5: |
||
892 | cmp ebx, 6 |
||
893 | jnz notsis6 |
||
894 | |||
895 | ; 6 : return status of packet driver |
||
896 | ; ( 0 == not active, FFFFFFFF = successful ) |
||
897 | mov eax, [eth_status] |
||
898 | ret |
||
899 | |||
900 | notsis6: |
||
901 | xor eax, eax |
||
902 | ret |
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903 | |||
904 | |||
905 | |||
906 | ;*************************************************************************** |
||
907 | ; Function |
||
908 | ; stack_get_packet |
||
909 | ; |
||
910 | ; Description |
||
911 | ; extracts an IP packet from the NET1 output queue |
||
912 | ; and sends the data to the calling process |
||
913 | ; pointer to data in edx |
||
914 | ; returns number of bytes read in eax |
||
915 | ; |
||
916 | ;*************************************************************************** |
||
917 | stack_get_packet: |
||
918 | ; Look for a buffer to tx |
||
919 | mov eax, NET1OUT_QUEUE |
||
920 | call dequeue |
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921 | cmp ax, NO_BUFFER |
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302 | hidnplayr | 922 | je sgp_non_exit ; Exit if no buffer available |
1 | ha | 923 | |
302 | hidnplayr | 924 | push eax ; Save buffer number for freeing at end |
1 | ha | 925 | |
926 | push edx |
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927 | ; convert buffer pointer eax to the absolute address |
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928 | mov ecx, IPBUFFSIZE |
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929 | mul ecx |
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930 | add eax, IPbuffs |
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931 | pop edx |
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932 | |||
302 | hidnplayr | 933 | push eax ; save address of IP data |
1 | ha | 934 | |
935 | ; Get the address of the callers data |
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379 | serge | 936 | mov edi,[TASK_BASE] |
115 | poddubny | 937 | add edi,TASKDATA.mem_start |
1 | ha | 938 | add edx,[edi] |
939 | mov edi, edx |
||
940 | |||
941 | pop eax |
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942 | |||
302 | hidnplayr | 943 | mov ecx, 1500 ; should get the actual number of bytes to write |
1 | ha | 944 | mov esi, eax |
945 | cld |
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302 | hidnplayr | 946 | rep movsb ; copy the data across |
1 | ha | 947 | |
948 | ; And finally, return the buffer to the free queue |
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949 | pop eax |
||
950 | call freeBuff |
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951 | |||
952 | mov eax, 1500 |
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953 | ret |
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954 | |||
955 | sgp_non_exit: |
||
956 | xor eax, eax |
||
957 | ret |
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958 | |||
959 | |||
960 | |||
961 | ;*************************************************************************** |
||
962 | ; Function |
||
963 | ; stack_insert_packet |
||
964 | ; |
||
965 | ; Description |
||
966 | ; writes an IP packet into the stacks receive queue |
||
967 | ; # of bytes to write in ecx |
||
968 | ; pointer to data in edx |
||
969 | ; returns 0 in eax ok, -1 == failed |
||
970 | ; |
||
971 | ;*************************************************************************** |
||
972 | stack_insert_packet: |
||
973 | |||
974 | mov eax, EMPTY_QUEUE |
||
975 | call dequeue |
||
976 | cmp ax, NO_BUFFER |
||
302 | hidnplayr | 977 | je sip_err_exit |
1 | ha | 978 | |
979 | push eax |
||
980 | |||
981 | ; save the pointers to the data buffer & size |
||
982 | push edx |
||
983 | push ecx |
||
984 | |||
985 | ; convert buffer pointer eax to the absolute address |
||
986 | mov ecx, IPBUFFSIZE |
||
987 | mul ecx |
||
988 | add eax, IPbuffs |
||
989 | |||
990 | mov edx, eax |
||
991 | |||
992 | ; So, edx holds the IPbuffer ptr |
||
993 | |||
302 | hidnplayr | 994 | pop ecx ; count of bytes to send |
995 | mov ebx, ecx ; need the length later |
||
996 | pop eax ; get callers ptr to data to send |
||
1 | ha | 997 | |
998 | ; Get the address of the callers data |
||
379 | serge | 999 | mov edi,[TASK_BASE] |
115 | poddubny | 1000 | add edi,TASKDATA.mem_start |
1 | ha | 1001 | add eax,[edi] |
1002 | mov esi, eax |
||
1003 | |||
1004 | mov edi, edx |
||
1005 | cld |
||
302 | hidnplayr | 1006 | rep movsb ; copy the data across |
1 | ha | 1007 | |
1008 | pop ebx |
||
1009 | |||
1010 | mov eax, IPIN_QUEUE |
||
1011 | call queue |
||
1012 | |||
1013 | inc dword [ip_rx_count] |
||
1014 | |||
1015 | mov eax, 0 |
||
1016 | ret |
||
1017 | |||
1018 | sip_err_exit: |
||
1019 | mov eax, 0xFFFFFFFF |
||
1020 | ret |
||
1021 |