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