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Rev | Author | Line No. | Line |
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431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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983 | diamond | 3 | ;; Copyright (C) KolibriOS team 2004-2008. All rights reserved. ;; |
431 | serge | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;; STACK.INC ;; |
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7 | ;; ;; |
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8 | ;; TCP/IP stack for Menuet OS ;; |
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9 | ;; ;; |
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10 | ;; Copyright 2002 Mike Hibbett, mikeh@oceanfree.net ;; |
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11 | ;; ;; |
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12 | ;; See file COPYING for details ;; |
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13 | ;; ;; |
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14 | ;; Version 0.7 ;; |
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15 | ;; Added a timer per socket to allow delays when rx window ;; |
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16 | ;; gets below 1KB ;; |
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17 | ;; ;; |
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18 | ;;10.01.2007 Bugfix for checksum function from Paolo Franchetti ;; |
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19 | ;; ;; |
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20 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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1 | ha | 21 | |
593 | mikedld | 22 | $Revision: 1369 $ |
1 | ha | 23 | |
261 | hidnplayr | 24 | |
1 | ha | 25 | ;******************************************************************* |
26 | ; Interface |
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27 | ; The interfaces defined in ETHERNET.INC plus: |
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28 | ; stack_init |
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29 | ; stack_handler |
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30 | ; app_stack_handler |
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31 | ; app_socket_handler |
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32 | ; checksum |
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33 | ; |
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34 | ;******************************************************************* |
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35 | |||
261 | hidnplayr | 36 | uglobal |
37 | StackCounters: |
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907 | mikedld | 38 | dumped_rx_count dd 0 |
261 | hidnplayr | 39 | arp_tx_count: dd 0 |
40 | arp_rx_count: dd 0 |
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1168 | Lrz | 41 | ip_rx_count: dd 0 |
42 | ip_tx_count: dd 0 |
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261 | hidnplayr | 43 | endg |
1 | ha | 44 | |
261 | hidnplayr | 45 | ; socket buffers |
1168 | Lrz | 46 | SOCKETBUFFSIZE equ 4096 ; state + config + buffer. |
47 | SOCKETHEADERSIZE equ SOCKET.rxData ; thus 4096 - SOCKETHEADERSIZE bytes data |
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1 | ha | 48 | |
907 | mikedld | 49 | ;NUM_SOCKETS equ 16 ; Number of open sockets supported. Was 20 |
1 | ha | 50 | |
261 | hidnplayr | 51 | ; IPBUFF status values |
1168 | Lrz | 52 | BUFF_EMPTY equ 0 |
53 | BUFF_RX_FULL equ 1 |
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54 | BUFF_ALLOCATED equ 2 |
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55 | BUFF_TX_FULL equ 3 |
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1 | ha | 56 | |
1168 | Lrz | 57 | NUM_IPBUFFERS equ 20 ; buffers allocated for TX/RX |
1 | ha | 58 | |
1168 | Lrz | 59 | NUMQUEUES equ 4 |
907 | mikedld | 60 | |
1168 | Lrz | 61 | EMPTY_QUEUE equ 0 |
62 | IPIN_QUEUE equ 1 |
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63 | IPOUT_QUEUE equ 2 |
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64 | NET1OUT_QUEUE equ 3 |
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1 | ha | 65 | |
1168 | Lrz | 66 | NO_BUFFER equ 0xFFFF |
67 | IPBUFFSIZE equ 1500 ; MTU of an ethernet packet |
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68 | NUMQUEUEENTRIES equ NUM_IPBUFFERS |
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69 | NUMRESENDENTRIES equ 18 ; Buffers for TCP resend packets |
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1 | ha | 70 | |
71 | ; These are the 0x40 function codes for application access to the stack |
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72 | STACK_DRIVER_STATUS equ 52 |
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73 | SOCKET_INTERFACE equ 53 |
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74 | |||
75 | |||
76 | ; 128KB allocated for the stack and network driver buffers and other |
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77 | ; data requirements |
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412 | serge | 78 | ;stack_data_start equ 0x700000 |
79 | ;eth_data_start equ 0x700000 |
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80 | ;stack_data equ 0x704000 |
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81 | ;stack_data_end equ 0x71ffff |
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1 | ha | 82 | |
83 | ; 32 bit word |
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1168 | Lrz | 84 | stack_config equ stack_data |
261 | hidnplayr | 85 | |
1 | ha | 86 | ; 32 bit word - IP Address in network format |
1168 | Lrz | 87 | stack_ip equ stack_data + 4 |
261 | hidnplayr | 88 | |
1 | ha | 89 | ; 1 byte. 0 == inactive, 1 = active |
90 | ethernet_active equ stack_data + 9 |
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261 | hidnplayr | 91 | |
92 | |||
93 | ; TODO :: empty memory area |
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94 | |||
1 | ha | 95 | ; Address of selected socket |
907 | mikedld | 96 | ;sktAddr equ stack_data + 32 |
1 | ha | 97 | ; Parameter to checksum routine - data ptr |
1168 | Lrz | 98 | checkAdd1 equ stack_data + 36 |
1 | ha | 99 | ; Parameter to checksum routine - 2nd data ptr |
1168 | Lrz | 100 | checkAdd2 equ stack_data + 40 |
1 | ha | 101 | ; Parameter to checksum routine - data size |
1168 | Lrz | 102 | checkSize1 equ stack_data + 44 |
1 | ha | 103 | ; Parameter to checksum routine - 2nd data size |
1168 | Lrz | 104 | checkSize2 equ stack_data + 46 |
1 | ha | 105 | ; result of checksum routine |
1168 | Lrz | 106 | checkResult equ stack_data + 48 |
1 | ha | 107 | |
108 | ; holds the TCP/UDP pseudo header. SA|DA|0|prot|UDP len| |
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1168 | Lrz | 109 | pseudoHeader equ stack_data + 50 |
1 | ha | 110 | |
111 | ; receive and transmit IP buffer allocation |
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907 | mikedld | 112 | ;sockets equ stack_data + 62 |
113 | Next_free2 equ stack_data + 62;Next_free2 equ sockets + (SOCKETBUFFSIZE * NUM_SOCKETS) |
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1 | ha | 114 | ; 1560 byte buffer for rx / tx ethernet packets |
1168 | Lrz | 115 | Ether_buffer equ Next_free2 |
116 | Next_free3 equ Ether_buffer + 1518 |
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117 | last_1sTick equ Next_free3 |
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118 | IPbuffs equ Next_free3 + 1 |
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119 | queues equ IPbuffs + ( NUM_IPBUFFERS * IPBUFFSIZE ) |
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120 | queueList equ queues + (2 * NUMQUEUES) |
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121 | last_1hsTick equ queueList + ( 2 * NUMQUEUEENTRIES ) |
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1 | ha | 122 | |
123 | ;resendQ equ queueList + ( 2 * NUMQUEUEENTRIES ) |
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124 | ;resendBuffer equ resendQ + ( 4 * NUMRESENDENTRIES ) ; for TCP |
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125 | ; equ resendBuffer + ( IPBUFFSIZE * NUMRESENDENTRIES ) |
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126 | |||
127 | |||
128 | |||
412 | serge | 129 | ;resendQ equ 0x770000 |
907 | mikedld | 130 | ;resendBuffer equ resendQ + ( 4 * NUMRESENDENTRIES ) ; for TCP ; XTODO: validate size |
1168 | Lrz | 131 | resendBuffer equ resendQ + ( 8 * NUMRESENDENTRIES ) ; for TCP |
1 | ha | 132 | |
133 | |||
907 | mikedld | 134 | uglobal |
135 | net_sockets rd 2 |
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136 | endg |
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137 | |||
261 | hidnplayr | 138 | ; simple macro for memory set operation |
139 | macro _memset_dw adr,value,amount |
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140 | { |
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1168 | Lrz | 141 | mov edi, adr |
142 | mov ecx, amount |
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143 | if value = 0 |
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144 | xor eax, eax |
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145 | else |
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146 | mov eax, value |
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147 | end if |
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148 | cld |
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149 | rep stosd |
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261 | hidnplayr | 150 | } |
151 | |||
152 | |||
153 | ; Below, the main network layer source code is included |
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154 | ; |
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155 | include "queue.inc" |
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156 | include "eth_drv/ethernet.inc" |
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157 | include "ip.inc" |
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158 | include "socket.inc" |
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159 | |||
1 | ha | 160 | ;*************************************************************************** |
161 | ; Function |
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162 | ; stack_init |
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163 | ; |
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164 | ; Description |
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165 | ; Clear all allocated memory to zero. This ensures that |
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166 | ; on startup, the stack is inactive, and consumes no resources |
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167 | ; This is a kernel function, called prior to the OS main loop |
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168 | ; in set_variables |
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169 | ; |
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170 | ;*************************************************************************** |
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261 | hidnplayr | 171 | |
1 | ha | 172 | stack_init: |
1168 | Lrz | 173 | ; Init two address spaces with default values |
174 | _memset_dw stack_data_start, 0, 0x20000/4 |
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175 | _memset_dw resendQ, 0, NUMRESENDENTRIES * 2 |
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1 | ha | 176 | |
1168 | Lrz | 177 | mov [net_sockets], 0 |
178 | mov [net_sockets + 4], 0 |
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909 | mikedld | 179 | |
1168 | Lrz | 180 | ; Queries initialization |
181 | call queueInit |
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1 | ha | 182 | |
1168 | Lrz | 183 | ; The following block sets up the 1s timer |
184 | mov al, 0x0 |
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185 | out 0x70, al |
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186 | in al, 0x71 |
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187 | mov [last_1sTick], al |
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261 | hidnplayr | 188 | ret |
1 | ha | 189 | |
190 | |||
191 | |||
192 | ;*************************************************************************** |
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193 | ; Function |
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194 | ; stack_handler |
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195 | ; |
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196 | ; Description |
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197 | ; The kernel loop routine for the stack |
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198 | ; This is a kernel function, called in the main loop |
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199 | ; |
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200 | ;*************************************************************************** |
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1168 | Lrz | 201 | align 4 |
1 | ha | 202 | stack_handler: |
203 | |||
204 | call ethernet_driver |
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205 | call ip_rx |
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206 | |||
207 | |||
208 | ; Test for 10ms tick, call tcp timer |
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209 | mov eax, [timer_ticks] ;[0xfdf0] |
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210 | cmp eax, [last_1hsTick] |
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1168 | Lrz | 211 | je sh_001 |
1 | ha | 212 | |
213 | mov [last_1hsTick], eax |
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214 | call tcp_tx_handler |
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215 | |||
216 | sh_001: |
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217 | |||
218 | ; Test for 1 second event, call 1s timer functions |
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261 | hidnplayr | 219 | mov al, 0x0 ;second |
220 | out 0x70, al |
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1168 | Lrz | 221 | in al, 0x71 |
1 | ha | 222 | cmp al, [last_1sTick] |
1168 | Lrz | 223 | je sh_exit |
1 | ha | 224 | |
225 | mov [last_1sTick], al |
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226 | |||
379 | serge | 227 | stdcall arp_table_manager, ARP_TABLE_TIMER, 0, 0 |
1 | ha | 228 | call tcp_tcb_handler |
229 | |||
230 | sh_exit: |
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231 | ret |
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232 | |||
261 | hidnplayr | 233 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
234 | ;; Checksum [by Johnny_B] |
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235 | ;; IN: |
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236 | ;; buf_ptr=POINTER to buffer |
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237 | ;; buf_size=SIZE of buffer |
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238 | ;; OUT: |
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239 | ;; AX=16-bit checksum |
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240 | ;; Saves all used registers |
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241 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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242 | proc checksum_jb stdcall uses ebx esi ecx,\ |
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243 | buf_ptr:DWORD, buf_size:DWORD |
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1 | ha | 244 | |
261 | hidnplayr | 245 | xor eax, eax |
246 | xor ebx, ebx ;accumulator |
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247 | mov esi, dword[buf_ptr] |
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248 | mov ecx, dword[buf_size] |
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249 | shr ecx, 1 ; ecx=ecx/2 |
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1168 | Lrz | 250 | jnc @f ; if CF==0 then size is even number |
261 | hidnplayr | 251 | mov bh, byte[esi + ecx*2] |
252 | @@: |
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253 | cld |
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1 | ha | 254 | |
261 | hidnplayr | 255 | .loop: |
256 | lodsw ;eax=word[esi],esi=esi+2 |
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257 | xchg ah,al ;cause must be a net byte-order |
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258 | add ebx, eax |
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259 | loop .loop |
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1 | ha | 260 | |
261 | hidnplayr | 261 | mov eax, ebx |
262 | shr eax, 16 |
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263 | add ax, bx |
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264 | not ax |
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1 | ha | 265 | |
266 | ret |
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261 | hidnplayr | 267 | endp |
1 | ha | 268 | |
269 | ;*************************************************************************** |
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270 | ; Function |
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271 | ; checksum |
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272 | ; |
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273 | ; Description |
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274 | ; checkAdd1,checkAdd2, checkSize1, checkSize2, checkResult |
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275 | ; Dont break anything; Most registers are used by the caller |
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276 | ; This code is derived from the 'C' source, cksum.c, in the book |
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277 | ; Internetworking with TCP/IP Volume II by D.E. Comer |
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278 | ; |
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279 | ;*************************************************************************** |
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261 | hidnplayr | 280 | |
281 | |||
1 | ha | 282 | checksum: |
283 | pusha |
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323 | hidnplayr | 284 | mov eax, [checkAdd1] |
1168 | Lrz | 285 | xor edx, edx ; edx is the accumulative checksum |
1 | ha | 286 | xor ebx, ebx |
287 | mov cx, [checkSize1] |
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288 | shr cx, 1 |
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1168 | Lrz | 289 | jz cs1_1 |
1 | ha | 290 | |
291 | cs1: |
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292 | mov bh, [eax] |
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293 | mov bl, [eax + 1] |
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294 | |||
295 | add eax, 2 |
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296 | add edx, ebx |
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297 | |||
298 | loopw cs1 |
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299 | |||
300 | cs1_1: |
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301 | and word [checkSize1], 0x01 |
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1168 | Lrz | 302 | jz cs_test2 |
1 | ha | 303 | |
304 | mov bh, [eax] |
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305 | xor bl, bl |
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306 | |||
307 | add edx, ebx |
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308 | |||
309 | cs_test2: |
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310 | mov cx, [checkSize2] |
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311 | cmp cx, 0 |
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1168 | Lrz | 312 | jz cs_exit ; Finished if no 2nd buffer |
1 | ha | 313 | |
323 | hidnplayr | 314 | mov eax, [checkAdd2] |
315 | |||
1 | ha | 316 | shr cx, 1 |
1168 | Lrz | 317 | jz cs2_1 |
1 | ha | 318 | |
319 | cs2: |
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320 | mov bh, [eax] |
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321 | mov bl, [eax + 1] |
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322 | |||
323 | add eax, 2 |
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324 | add edx, ebx |
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325 | |||
326 | loopw cs2 |
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327 | |||
328 | cs2_1: |
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329 | and word [checkSize2], 0x01 |
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1168 | Lrz | 330 | jz cs_exit |
1 | ha | 331 | |
332 | mov bh, [eax] |
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333 | xor bl, bl |
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334 | |||
335 | add edx, ebx |
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336 | |||
337 | cs_exit: |
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338 | mov ebx, edx |
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339 | |||
340 | shr ebx, 16 |
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341 | and edx, 0xffff |
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342 | add edx, ebx |
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343 | mov eax, edx |
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344 | shr eax, 16 |
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345 | add edx, eax |
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346 | not dx |
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347 | |||
348 | mov [checkResult], dx |
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349 | popa |
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350 | ret |
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351 | |||
352 | |||
353 | |||
354 | |||
355 | ;*************************************************************************** |
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356 | ; Function |
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357 | ; app_stack_handler |
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358 | ; |
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359 | ; Description |
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261 | hidnplayr | 360 | ; This is an application service, called by int 0x40, function 52 |
1 | ha | 361 | ; It provides application access to the network interface layer |
362 | ; |
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363 | ;*************************************************************************** |
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1369 | Lrz | 364 | iglobal |
365 | align 4 |
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366 | f52call: |
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367 | dd app_stack_handler.00 |
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368 | dd app_stack_handler.01 |
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369 | dd app_stack_handler.02 |
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370 | dd app_stack_handler.03 |
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371 | dd app_stack_handler.fail ;04 |
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372 | dd app_stack_handler.fail ;05 |
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373 | dd stack_insert_packet ;app_stack_handler.06 |
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374 | dd app_stack_handler.fail ;07 |
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375 | dd stack_get_packet ;app_stack_handler.08 |
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376 | dd app_stack_handler.09 |
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377 | dd app_stack_handler.10 |
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378 | dd app_stack_handler.11 |
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379 | dd app_stack_handler.12 |
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380 | dd app_stack_handler.13 |
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381 | dd app_stack_handler.14 |
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382 | dd app_stack_handler.15 |
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383 | endg |
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1 | ha | 384 | app_stack_handler: |
1369 | Lrz | 385 | ;in ebx,ecx |
386 | ;out eax |
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387 | cmp ebx,15 |
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388 | ja .fail ;if more than 15 then exit |
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1 | ha | 389 | |
1369 | Lrz | 390 | jmp dword [f52call+ebx*4] |
1 | ha | 391 | |
392 | |||
1369 | Lrz | 393 | .00: |
394 | ; Read the configuration word |
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395 | mov eax, [stack_config] |
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396 | ret |
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1 | ha | 397 | |
1369 | Lrz | 398 | .01: |
399 | ; read the IP address |
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400 | mov eax, [stack_ip] |
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401 | ret |
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1 | ha | 402 | |
1369 | Lrz | 403 | .02: |
404 | ; write the configuration word |
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405 | mov [stack_config], ecx |
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1 | ha | 406 | |
1369 | Lrz | 407 | ; |
408 | ; If ethernet now enabled, probe for the card, reset it and empty |
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409 | ; the packet buffer |
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410 | ; If all successfull, enable the card. |
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411 | ; If ethernet now disabled, set it as disabled. Should really |
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412 | ; empty the tcpip data area too. |
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1 | ha | 413 | |
1369 | Lrz | 414 | ; ethernet interface is '3' in ls 7 bits |
415 | and cl, 0x7f |
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416 | cmp cl, 3 |
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417 | je ash_eth_enable |
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418 | ; Ethernet isn't enabled, so make sure that the card is disabled |
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419 | mov [ethernet_active], byte 0 |
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420 | ret |
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1 | ha | 421 | |
1369 | Lrz | 422 | .03: |
423 | ; write the IP Address |
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424 | mov [stack_ip], ecx |
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425 | ret |
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261 | hidnplayr | 426 | ;old functions was deleted |
1369 | Lrz | 427 | ;.06: |
428 | ; Insert an IP packet into the stacks received packet queue |
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429 | ; call stack_insert_packet |
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430 | ; ret |
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261 | hidnplayr | 431 | |
1369 | Lrz | 432 | ; Test for any packets queued for transmission over the network |
1 | ha | 433 | |
1369 | Lrz | 434 | ;.08: |
435 | ; call stack_get_packet |
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436 | ; Extract a packet queued for transmission by the network |
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437 | ; ret |
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1 | ha | 438 | |
1369 | Lrz | 439 | .09: |
440 | ; read the gateway IP address |
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441 | mov eax, [gateway_ip] |
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442 | ret |
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1 | ha | 443 | |
1369 | Lrz | 444 | .10: |
445 | ; read the subnet mask |
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446 | mov eax, [subnet_mask] |
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447 | ret |
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448 | .11: |
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449 | ; write the gateway IP Address |
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450 | mov [gateway_ip], ecx |
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451 | ret |
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1 | ha | 452 | |
1369 | Lrz | 453 | .12: |
454 | ; write the subnet mask |
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455 | mov [subnet_mask], ecx |
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456 | ret |
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1 | ha | 457 | |
1369 | Lrz | 458 | .13: |
459 | ; read the dns |
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460 | mov eax, [dns_ip] |
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461 | ret |
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1 | ha | 462 | |
1369 | Lrz | 463 | .14: |
464 | ; write the dns IP Address |
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465 | mov [dns_ip], ecx |
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466 | ret |
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1 | ha | 467 | |
1369 | Lrz | 468 | .15: |
261 | hidnplayr | 469 | ; |
1369 | Lrz | 470 | ; in ecx we need 4 to read the last 2 bytes |
471 | ; or we need 0 to read the first 4 bytes |
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472 | cmp ecx,4 |
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473 | ja .param_error |
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261 | hidnplayr | 474 | |
1369 | Lrz | 475 | ; read MAC, returned (in mirrored byte order) in eax |
476 | mov eax, [node_addr + ecx] |
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477 | ret |
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379 | serge | 478 | |
1369 | Lrz | 479 | .param_error: |
480 | or eax, -1 ; params not accepted |
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1168 | Lrz | 481 | ret |
261 | hidnplayr | 482 | |
1369 | Lrz | 483 | .16: |
261 | hidnplayr | 484 | ; 0 -> arp_probe |
485 | ; 1 -> arp_announce |
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486 | ; 2 -> arp_responce (not supported yet) |
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1369 | Lrz | 487 | test ecx,ecx |
1168 | Lrz | 488 | je a_probe |
379 | serge | 489 | |
1369 | Lrz | 490 | dec ebx |
491 | jz a_ann ; arp announce |
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492 | .fail: |
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493 | or eax, -1 |
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494 | ret |
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379 | serge | 495 | |
302 | hidnplayr | 496 | ; cmp ebx,2 |
497 | ; jne a_resp ; arp response |
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261 | hidnplayr | 498 | |
499 | ; arp probe, sender IP must be set to 0.0.0.0, target IP is set to address being probed |
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500 | ; ecx: pointer to target MAC, MAC should set to 0 by application |
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501 | ; edx: target IP |
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502 | a_probe: |
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1168 | Lrz | 503 | push dword [stack_ip] |
379 | serge | 504 | |
1168 | Lrz | 505 | mov edx, [stack_ip] |
1369 | Lrz | 506 | and [stack_ip], dword 0 |
1168 | Lrz | 507 | mov esi, ecx ; pointer to target MAC address |
508 | call arp_request |
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379 | serge | 509 | |
1168 | Lrz | 510 | pop dword [stack_ip] |
1369 | Lrz | 511 | ret |
379 | serge | 512 | |
261 | hidnplayr | 513 | ; arp announce, sender IP must be set to target IP |
514 | ; ecx: pointer to target MAC |
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515 | a_ann: |
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1168 | Lrz | 516 | mov edx, [stack_ip] |
517 | mov esi, ecx ; pointer to target MAC address |
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518 | call arp_request |
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1369 | Lrz | 519 | ret |
379 | serge | 520 | |
1369 | Lrz | 521 | .17: |
261 | hidnplayr | 522 | ; |
523 | ; modified by [smb] |
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524 | |||
525 | ; |
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526 | ; ARPTable manager interface |
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527 | ;see "proc arp_table_manager" for more details |
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1369 | Lrz | 528 | stdcall arp_table_manager,ecx,edx,esi ;Opcode,Index,Extra |
1 | ha | 529 | ret |
261 | hidnplayr | 530 | ; |
1 | ha | 531 | |
1369 | Lrz | 532 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
533 | ash_eth_enable: |
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534 | ; Probe for the card. This will reset it and enable the interface |
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535 | ; if found |
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536 | call eth_probe |
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537 | test eax,eax |
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538 | jz ash_eth_done ; Abort if no hardware found |
||
1 | ha | 539 | |
1369 | Lrz | 540 | mov [ethernet_active], byte 1 |
541 | ash_eth_done: |
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542 | ret |
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1 | ha | 543 | ;*************************************************************************** |
544 | ; Function |
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545 | ; app_socket_handler |
||
546 | ; |
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547 | ; Description |
||
261 | hidnplayr | 548 | ; This is an application service, called by int 0x40, function 53 |
1 | ha | 549 | ; It provides application access to stack socket services |
550 | ; such as opening sockets |
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551 | ; |
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552 | ;*************************************************************************** |
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1369 | Lrz | 553 | iglobal |
554 | align 4 |
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555 | f53call: |
||
556 | dd socket_open ;00 |
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557 | dd socket_close ;01 |
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558 | dd socket_poll ;02 |
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559 | dd socket_read ;03 |
||
560 | dd socket_write ;04 |
||
561 | dd socket_open_tcp ;05 |
||
562 | dd socket_status ;06 |
||
563 | dd socket_write_tcp ;07 |
||
564 | dd socket_close_tcp ;08 |
||
565 | dd is_localport_unused ;09 |
||
566 | dd app_socket_handler.10 |
||
567 | dd socket_read_packet ;11 |
||
568 | endg |
||
569 | |||
1 | ha | 570 | app_socket_handler: |
1369 | Lrz | 571 | ;in ebx,ecx,edx,wsi |
572 | ;out eax |
||
573 | cmp eax,255 |
||
574 | je stack_internal_status |
||
1 | ha | 575 | |
1369 | Lrz | 576 | cmp eax,11 |
577 | ja .fail ;if more than 15 then exit |
||
1 | ha | 578 | |
1369 | Lrz | 579 | jmp dword [f53call+eax*4] |
1 | ha | 580 | |
1369 | Lrz | 581 | .10: |
582 | mov eax,dword[drvr_cable] |
||
583 | test eax,eax |
||
584 | jnz @f ; if function is not implented, return -1 |
||
585 | or al,-1 |
||
586 | ret |
||
587 | @@: |
||
588 | jmp dword[drvr_cable] |
||
1 | ha | 589 | |
1369 | Lrz | 590 | .fail: |
591 | or eax,-1 |
||
592 | ret |
||
1 | ha | 593 | uglobal |
594 | ARPTmp: |
||
595 | times 14 db 0 |
||
596 | endg |
||
597 | |||
598 | ;*************************************************************************** |
||
599 | ; Function |
||
600 | ; stack_internal_status |
||
601 | ; |
||
602 | ; Description |
||
603 | ; Returns information about the internal status of the stack |
||
604 | ; This is only useful for debugging |
||
605 | ; It works with the ethernet driver |
||
606 | ; sub function in ebx |
||
607 | ; return requested data in eax |
||
608 | ; |
||
609 | ;*************************************************************************** |
||
1369 | Lrz | 610 | ; This sub function allows access to debugging information on the stack |
611 | ; ecx holds the request: |
||
612 | ; 100 : return length of empty queue |
||
613 | ; 101 : return length of IPOUT QUEUE |
||
614 | ; 102 : return length of IPIN QUEUE |
||
615 | ; 103 : return length of NET1OUT QUEUE |
||
616 | ; 200 : return # of ARP entries |
||
617 | ; 201 : return size of ARP table ( max # entries ) |
||
618 | ; 202 : select ARP table entry # |
||
619 | ; 203 : return IP of selected table entry |
||
620 | ; 204 : return High 4 bytes of MAC address of selected table entry |
||
621 | ; 205 : return low 2 bytes of MAC address of selected table entry |
||
622 | ; 206 : return status word of selected table entry |
||
623 | ; 207 : return Time to live of selected table entry |
||
624 | |||
625 | |||
626 | ; 2 : return number of IP packets received |
||
627 | ; 3 : return number of packets transmitted |
||
628 | ; 4 : return number of received packets dumped |
||
629 | ; 5 : return number of arp packets received |
||
630 | ; 6 : return status of packet driver |
||
631 | ; ( 0 == not active, FFFFFFFF = successful ) |
||
632 | |||
633 | |||
1 | ha | 634 | stack_internal_status: |
635 | cmp ebx, 100 |
||
636 | jnz notsis100 |
||
637 | |||
638 | ; 100 : return length of EMPTY QUEUE |
||
639 | mov ebx, EMPTY_QUEUE |
||
640 | call queueSize |
||
641 | ret |
||
642 | |||
643 | notsis100: |
||
644 | cmp ebx, 101 |
||
645 | jnz notsis101 |
||
646 | |||
647 | ; 101 : return length of IPOUT QUEUE |
||
648 | mov ebx, IPOUT_QUEUE |
||
1369 | Lrz | 649 | call queueSize |
1 | ha | 650 | ret |
651 | |||
652 | notsis101: |
||
653 | cmp ebx, 102 |
||
654 | jnz notsis102 |
||
655 | |||
656 | ; 102 : return length of IPIN QUEUE |
||
657 | mov ebx, IPIN_QUEUE |
||
658 | call queueSize |
||
659 | ret |
||
660 | |||
661 | notsis102: |
||
662 | cmp ebx, 103 |
||
663 | jnz notsis103 |
||
664 | |||
665 | ; 103 : return length of NET1OUT QUEUE |
||
666 | mov ebx, NET1OUT_QUEUE |
||
667 | call queueSize |
||
668 | ret |
||
669 | |||
670 | notsis103: |
||
671 | cmp ebx, 200 |
||
672 | jnz notsis200 |
||
673 | |||
674 | ; 200 : return num entries in arp table |
||
675 | movzx eax, byte [NumARP] |
||
676 | ret |
||
677 | |||
678 | notsis200: |
||
679 | cmp ebx, 201 |
||
680 | jnz notsis201 |
||
681 | |||
682 | ; 201 : return arp table size |
||
683 | mov eax, 20 ; ARP_TABLE_SIZE |
||
684 | ret |
||
685 | |||
686 | notsis201: |
||
687 | cmp ebx, 202 |
||
688 | jnz notsis202 |
||
689 | |||
690 | ; 202 - read the requested table entry |
||
691 | ; into a temporary buffer |
||
692 | ; ecx holds the entry number |
||
693 | |||
694 | mov eax, ecx |
||
695 | mov ecx, 14 ; ARP_ENTRY_SIZE |
||
696 | mul ecx |
||
697 | |||
698 | mov ecx, [eax + ARPTable] |
||
699 | mov [ARPTmp], ecx |
||
700 | mov ecx, [eax + ARPTable+4] |
||
701 | mov [ARPTmp+4], ecx |
||
702 | mov ecx, [eax + ARPTable+8] |
||
703 | mov [ARPTmp+8], ecx |
||
704 | mov cx, [eax + ARPTable+12] |
||
705 | mov [ARPTmp+12], cx |
||
706 | ret |
||
707 | |||
708 | notsis202: |
||
709 | cmp ebx, 203 |
||
710 | jnz notsis203 |
||
711 | |||
712 | ; 203 - return IP address |
||
713 | mov eax, [ARPTmp] |
||
714 | ret |
||
715 | |||
716 | notsis203: |
||
717 | cmp ebx, 204 |
||
718 | jnz notsis204 |
||
719 | |||
720 | ; 204 - return MAC high dword |
||
721 | mov eax, [ARPTmp+4] |
||
722 | ret |
||
723 | |||
724 | notsis204: |
||
725 | cmp ebx, 205 |
||
726 | jnz notsis205 |
||
727 | |||
728 | ; 205 - return MAC ls word |
||
729 | movzx eax, word [ARPTmp+8] |
||
730 | ret |
||
731 | |||
732 | notsis205: |
||
733 | cmp ebx, 206 |
||
734 | jnz notsis206 |
||
735 | |||
736 | ; 206 - return status word |
||
737 | movzx eax, word [ARPTmp+10] |
||
738 | ret |
||
739 | |||
740 | notsis206: |
||
741 | cmp ebx, 207 |
||
742 | jnz notsis207 |
||
743 | |||
744 | ; 207 - return ttl word |
||
745 | movzx eax, word [ARPTmp+12] |
||
746 | ret |
||
747 | |||
748 | notsis207: |
||
749 | cmp ebx, 2 |
||
750 | jnz notsis2 |
||
751 | |||
752 | ; 2 : return number of IP packets received |
||
753 | mov eax, [ip_rx_count] |
||
754 | ret |
||
755 | |||
756 | notsis2: |
||
757 | cmp ebx, 3 |
||
758 | jnz notsis3 |
||
759 | |||
760 | ; 3 : return number of packets transmitted |
||
761 | mov eax, [ip_tx_count] |
||
762 | ret |
||
763 | |||
764 | notsis3: |
||
765 | cmp ebx, 4 |
||
766 | jnz notsis4 |
||
767 | |||
768 | ; 4 : return number of received packets dumped |
||
769 | mov eax, [dumped_rx_count] |
||
770 | ret |
||
771 | |||
772 | notsis4: |
||
773 | cmp ebx, 5 |
||
774 | jnz notsis5 |
||
775 | |||
776 | ; 5 : return number of arp packets received |
||
777 | mov eax, [arp_rx_count] |
||
778 | ret |
||
779 | |||
780 | notsis5: |
||
781 | cmp ebx, 6 |
||
782 | jnz notsis6 |
||
783 | |||
784 | ; 6 : return status of packet driver |
||
785 | ; ( 0 == not active, FFFFFFFF = successful ) |
||
786 | mov eax, [eth_status] |
||
787 | ret |
||
788 | |||
789 | notsis6: |
||
790 | xor eax, eax |
||
791 | ret |
||
792 | |||
793 | |||
794 | |||
795 | ;*************************************************************************** |
||
796 | ; Function |
||
797 | ; stack_get_packet |
||
798 | ; |
||
799 | ; Description |
||
800 | ; extracts an IP packet from the NET1 output queue |
||
801 | ; and sends the data to the calling process |
||
802 | ; pointer to data in edx |
||
803 | ; returns number of bytes read in eax |
||
804 | ; |
||
805 | ;*************************************************************************** |
||
806 | stack_get_packet: |
||
807 | ; Look for a buffer to tx |
||
808 | mov eax, NET1OUT_QUEUE |
||
809 | call dequeue |
||
810 | cmp ax, NO_BUFFER |
||
1168 | Lrz | 811 | je sgp_non_exit ; Exit if no buffer available |
1 | ha | 812 | |
1168 | Lrz | 813 | push eax ; Save buffer number for freeing at end |
1 | ha | 814 | |
815 | push edx |
||
816 | ; convert buffer pointer eax to the absolute address |
||
817 | mov ecx, IPBUFFSIZE |
||
818 | mul ecx |
||
819 | add eax, IPbuffs |
||
820 | pop edx |
||
821 | |||
1168 | Lrz | 822 | push eax ; save address of IP data |
1 | ha | 823 | ; Get the address of the callers data |
379 | serge | 824 | mov edi,[TASK_BASE] |
115 | poddubny | 825 | add edi,TASKDATA.mem_start |
1 | ha | 826 | add edx,[edi] |
827 | mov edi, edx |
||
828 | pop eax |
||
829 | |||
1168 | Lrz | 830 | mov ecx, 1500 ; should get the actual number of bytes to write |
1 | ha | 831 | mov esi, eax |
832 | cld |
||
1168 | Lrz | 833 | rep movsb ; copy the data across |
1 | ha | 834 | |
835 | ; And finally, return the buffer to the free queue |
||
836 | pop eax |
||
837 | call freeBuff |
||
838 | |||
839 | mov eax, 1500 |
||
840 | ret |
||
841 | |||
842 | sgp_non_exit: |
||
843 | xor eax, eax |
||
844 | ret |
||
845 | |||
846 | |||
847 | |||
848 | ;*************************************************************************** |
||
849 | ; Function |
||
850 | ; stack_insert_packet |
||
851 | ; |
||
852 | ; Description |
||
853 | ; writes an IP packet into the stacks receive queue |
||
854 | ; # of bytes to write in ecx |
||
855 | ; pointer to data in edx |
||
856 | ; returns 0 in eax ok, -1 == failed |
||
857 | ; |
||
858 | ;*************************************************************************** |
||
859 | stack_insert_packet: |
||
860 | |||
861 | mov eax, EMPTY_QUEUE |
||
862 | call dequeue |
||
863 | cmp ax, NO_BUFFER |
||
1168 | Lrz | 864 | je sip_err_exit |
1 | ha | 865 | |
866 | push eax |
||
867 | |||
868 | ; save the pointers to the data buffer & size |
||
869 | push edx |
||
870 | push ecx |
||
871 | |||
872 | ; convert buffer pointer eax to the absolute address |
||
873 | mov ecx, IPBUFFSIZE |
||
874 | mul ecx |
||
875 | add eax, IPbuffs |
||
876 | |||
877 | mov edx, eax |
||
878 | |||
879 | ; So, edx holds the IPbuffer ptr |
||
880 | |||
1168 | Lrz | 881 | pop ecx ; count of bytes to send |
882 | mov ebx, ecx ; need the length later |
||
883 | pop eax ; get callers ptr to data to send |
||
1 | ha | 884 | |
885 | ; Get the address of the callers data |
||
379 | serge | 886 | mov edi,[TASK_BASE] |
115 | poddubny | 887 | add edi,TASKDATA.mem_start |
1 | ha | 888 | add eax,[edi] |
889 | mov esi, eax |
||
890 | |||
891 | mov edi, edx |
||
892 | cld |
||
1168 | Lrz | 893 | rep movsb ; copy the data across |
1 | ha | 894 | |
895 | pop ebx |
||
896 | |||
897 | mov eax, IPIN_QUEUE |
||
898 | call queue |
||
899 | |||
900 | inc dword [ip_rx_count] |
||
901 | |||
902 | mov eax, 0 |
||
903 | ret |
||
904 | |||
905 | sip_err_exit: |
||
906 | mov eax, 0xFFFFFFFF |
||
907 | ret |
||
908 |