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