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1171 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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1514 | hidnplayr | 3 | ;; Copyright (C) KolibriOS team 2004-2010. All rights reserved. ;; |
1171 | hidnplayr | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;; STACK.INC ;; |
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7 | ;; ;; |
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8 | ;; BASIC TCP/IP stack for KolibriOS ;; |
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9 | ;; ;; |
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10 | ;; Written by hidnplayr@kolibrios.org ;; |
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11 | ;; ;; |
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12 | ;; based on the work of Mike Hibbett, mikeh@oceanfree.net ;; |
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13 | ;; but also Paolo Franchetti ;; |
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14 | ;; ;; |
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15 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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16 | ;; Version 2, June 1991 ;; |
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17 | ;; ;; |
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18 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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1159 | hidnplayr | 19 | |
1206 | hidnplayr | 20 | $Revision: 1514 $ |
1159 | hidnplayr | 21 | |
1473 | hidnplayr | 22 | __DEBUG_LEVEL_OLD__ equ __DEBUG_LEVEL__ |
23 | __DEBUG_LEVEL__ equ 1 ; this sets the debug level for network part of kernel |
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24 | |||
1159 | hidnplayr | 25 | uglobal |
1514 | hidnplayr | 26 | net_10ms dd ? |
27 | net_tmr_count dw ? |
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1159 | hidnplayr | 28 | endg |
29 | |||
1259 | hidnplayr | 30 | MAX_NET_DEVICES equ 16 |
1159 | hidnplayr | 31 | |
1514 | hidnplayr | 32 | ETH_QUEUE equ 0 ; 1 = enable / 0 = disable |
33 | |||
1185 | hidnplayr | 34 | MIN_EPHEMERAL_PORT equ 49152 |
35 | MAX_EPHEMERAL_PORT equ 61000 |
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1159 | hidnplayr | 36 | |
1514 | hidnplayr | 37 | ; Ethernet protocol numbers |
1185 | hidnplayr | 38 | ETHER_ARP equ 0x0608 |
1514 | hidnplayr | 39 | ETHER_IPv4 equ 0x0008 ; Reversed from 0800 for intel |
1185 | hidnplayr | 40 | |
1514 | hidnplayr | 41 | ;Protocol family |
1254 | hidnplayr | 42 | AF_UNSPEC equ 0 |
1249 | hidnplayr | 43 | AF_UNIX equ 1 |
1159 | hidnplayr | 44 | AF_INET4 equ 2 |
45 | ;AF_AX25 equ 3 |
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46 | ;AF_IPX equ 4 |
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47 | ;AF_APPLETALK equ 5 |
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48 | ;AF_NETROM equ 6 |
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49 | ;AF_BRIDGE equ 7 |
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50 | ;AF_AAL5 equ 8 |
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51 | ;AF_X25 equ 9 |
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1514 | hidnplayr | 52 | AF_INET6 equ 10 |
1159 | hidnplayr | 53 | ;AF_MAX equ 12 |
54 | |||
1514 | hidnplayr | 55 | ; Internet protocol numbers |
1159 | hidnplayr | 56 | IP_PROTO_IP equ 0 |
57 | IP_PROTO_ICMP equ 1 |
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58 | IP_PROTO_TCP equ 6 |
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59 | IP_PROTO_UDP equ 17 |
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60 | |||
1200 | hidnplayr | 61 | ; Socket types |
1514 | hidnplayr | 62 | SOCK_STREAM equ 1 |
63 | SOCK_DGRAM equ 2 |
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64 | SOCK_RAW equ 3 |
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1200 | hidnplayr | 65 | |
1514 | hidnplayr | 66 | ; Socket options |
67 | SO_ACCEPTCON equ 1 |
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1159 | hidnplayr | 68 | |
1514 | hidnplayr | 69 | SOCKET_MAXDATA equ 4096 |
1254 | hidnplayr | 70 | |
1514 | hidnplayr | 71 | ; Network driver types |
72 | NET_TYPE_ETH equ 1 |
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73 | NET_TYPE_SLIP equ 2 |
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1254 | hidnplayr | 74 | |
75 | |||
1514 | hidnplayr | 76 | virtual at 0 |
1254 | hidnplayr | 77 | |
1514 | hidnplayr | 78 | NET_DEVICE: |
79 | .type dd ? |
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80 | .end: |
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1254 | hidnplayr | 81 | |
1514 | hidnplayr | 82 | end virtual |
1254 | hidnplayr | 83 | |
84 | |||
1514 | hidnplayr | 85 | ; Exactly as it says.. |
1318 | hidnplayr | 86 | macro pseudo_random reg { |
87 | add reg, [esp] |
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88 | rol reg, 5 |
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89 | xor reg, [timer_ticks] |
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90 | imul reg, 214013 |
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91 | xor reg, 0xdeadbeef |
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92 | rol reg, 9 |
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1514 | hidnplayr | 93 | } |
1318 | hidnplayr | 94 | |
1514 | hidnplayr | 95 | macro ntohld reg { |
1318 | hidnplayr | 96 | |
1514 | hidnplayr | 97 | rol word reg, 8 |
98 | rol dword reg, 16 |
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99 | rol word reg, 8 |
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100 | |||
1318 | hidnplayr | 101 | } |
102 | |||
1514 | hidnplayr | 103 | macro ntohlw reg { |
104 | |||
105 | rol word reg, 8 |
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106 | |||
107 | } |
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108 | |||
109 | |||
1159 | hidnplayr | 110 | include "queue.inc" |
1514 | hidnplayr | 111 | |
112 | include "ethernet.inc" |
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113 | ;include "slip.inc" |
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114 | |||
1187 | hidnplayr | 115 | include "ARP.inc" |
116 | include "IPv4.inc" |
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1514 | hidnplayr | 117 | |
118 | include "icmp.inc" |
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119 | include "udp.inc" |
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1249 | hidnplayr | 120 | include "tcp.inc" |
1159 | hidnplayr | 121 | |
1514 | hidnplayr | 122 | include "socket.inc" |
123 | |||
124 | |||
125 | |||
126 | align 4 |
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127 | uglobal |
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128 | |||
129 | NET_RUNNING dd ? |
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130 | NET_DRV_LIST rd MAX_NET_DEVICES |
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131 | |||
132 | endg |
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133 | |||
134 | |||
1257 | hidnplayr | 135 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 136 | ; |
137 | ; stack_init |
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138 | ; |
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139 | ; This function calls all network init procedures |
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140 | ; |
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141 | ; IN: / |
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142 | ; OUT: / |
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143 | ; |
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1257 | hidnplayr | 144 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 145 | align 4 |
146 | stack_init: |
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147 | |||
1514 | hidnplayr | 148 | ; Init the network drivers list |
149 | |||
150 | xor eax, eax |
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151 | mov edi, NET_RUNNING |
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152 | mov ecx, MAX_NET_DEVICES + 1 |
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153 | rep stosd |
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154 | |||
155 | ; Call other init procedures |
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156 | |||
1159 | hidnplayr | 157 | call ETH_init |
1514 | hidnplayr | 158 | ; call SLIP_init |
159 | |||
1159 | hidnplayr | 160 | call IPv4_init |
1514 | hidnplayr | 161 | call ICMP_init |
162 | |||
1159 | hidnplayr | 163 | call ARP_init |
164 | call UDP_init |
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1249 | hidnplayr | 165 | call TCP_init |
1514 | hidnplayr | 166 | |
1159 | hidnplayr | 167 | call socket_init |
168 | |||
1514 | hidnplayr | 169 | mov [net_tmr_count], 0 |
1159 | hidnplayr | 170 | |
171 | ret |
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172 | |||
173 | |||
1257 | hidnplayr | 174 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 175 | ; |
176 | ; stack_handler |
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177 | ; |
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1514 | hidnplayr | 178 | ; This function is called in kernel loop |
1159 | hidnplayr | 179 | ; |
180 | ; IN: / |
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181 | ; OUT: / |
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182 | ; |
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1257 | hidnplayr | 183 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 184 | align 4 |
185 | stack_handler: |
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186 | |||
1514 | hidnplayr | 187 | cmp [NET_RUNNING], 0 |
1257 | hidnplayr | 188 | je .exit |
1159 | hidnplayr | 189 | |
1318 | hidnplayr | 190 | ; Test for 10ms tick |
1257 | hidnplayr | 191 | mov eax, [timer_ticks] |
1514 | hidnplayr | 192 | cmp eax, [net_10ms] |
1257 | hidnplayr | 193 | je .exit |
1514 | hidnplayr | 194 | mov [net_10ms], eax |
1159 | hidnplayr | 195 | |
1514 | hidnplayr | 196 | if ETH_QUEUE |
197 | call ETH_handler |
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1257 | hidnplayr | 198 | call ETH_send_queued |
1514 | hidnplayr | 199 | end if |
200 | call TCP_10ms |
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1249 | hidnplayr | 201 | |
1514 | hidnplayr | 202 | inc [net_tmr_count] |
203 | cmp [net_tmr_count], 50 |
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204 | je .500ms |
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205 | cmp [net_tmr_count], 100 |
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206 | jne .exit |
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1159 | hidnplayr | 207 | |
1257 | hidnplayr | 208 | call ARP_decrease_entry_ttls |
209 | call IPv4_decrease_fragment_ttls |
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1514 | hidnplayr | 210 | call TCP_timer_1000ms |
1159 | hidnplayr | 211 | |
1514 | hidnplayr | 212 | mov [net_tmr_count], 0 |
213 | |||
214 | .500ms: |
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215 | call TCP_500ms |
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216 | |||
1159 | hidnplayr | 217 | .exit: |
1257 | hidnplayr | 218 | ret |
1159 | hidnplayr | 219 | |
220 | |||
1514 | hidnplayr | 221 | |
1249 | hidnplayr | 222 | ;----------------------------------------------------------------- |
223 | ; |
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1514 | hidnplayr | 224 | ; NET_Add_Device: |
225 | ; |
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226 | ; This function is called by the network drivers, |
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227 | ; to register each running NIC to the kernel |
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228 | ; |
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229 | ; IN: Pointer to device structure in ebx |
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230 | ; OUT: Device num in eax, -1 on error |
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231 | ; |
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232 | ;----------------------------------------------------------------- |
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233 | align 4 |
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234 | NET_add_device: |
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235 | |||
236 | DEBUGF 1,"NET_Add_Device: %x\n", ebx |
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237 | |||
238 | mov eax, [NET_RUNNING] |
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239 | cmp eax, MAX_NET_DEVICES |
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240 | jge .error |
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241 | |||
242 | ;---------------------------------- |
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243 | ; Check if device is already listed |
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244 | mov eax, ebx |
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245 | mov ecx, MAX_NET_DEVICES ; We need to check whole list because a device may be removed without re-organizing list |
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246 | mov edi, NET_DRV_LIST |
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247 | |||
248 | repne scasd ; See if device is already in the list |
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249 | jz .error |
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250 | |||
251 | ;---------------------------- |
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252 | ; Find empty slot in the list |
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253 | xor eax, eax |
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254 | mov ecx, MAX_NET_DEVICES |
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255 | mov edi, NET_DRV_LIST |
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256 | |||
257 | repne scasd |
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258 | jnz .error |
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259 | |||
260 | sub edi, 4 |
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261 | |||
262 | cmp [ebx + NET_DEVICE.type], NET_TYPE_ETH |
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263 | je .ethernet |
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264 | |||
265 | cmp [ebx + NET_DEVICE.type], NET_TYPE_SLIP |
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266 | je .slip |
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267 | |||
268 | DEBUGF 1,"Unknown network device type: %u\n", [ebx + NET_DEVICE.type] |
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269 | jmp .error |
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270 | |||
271 | .ethernet: |
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272 | DEBUGF 1,"Trying to add an ethernet driver\n" |
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273 | |||
274 | inc [ETH_RUNNING] ; Indicate that one more ethernet device is up and running |
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275 | jmp .add_it |
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276 | |||
277 | .slip: |
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278 | DEBUGF 1,"Trying to add a slip driver\n" |
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279 | ;;;; |
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280 | jmp .error |
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281 | |||
282 | |||
283 | .add_it: |
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284 | |||
285 | ;----------------------------- |
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286 | ; Add device to the found slot |
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287 | mov [edi], ebx ; add device to list |
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288 | |||
289 | sub edi, NET_DRV_LIST ; Calculate device number in eax |
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290 | mov eax, edi ; |
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291 | shr eax, 2 |
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292 | |||
293 | inc [NET_RUNNING] ; Indicate that one more network device is up and running |
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294 | |||
295 | DEBUGF 1,"Device number: %u\n",eax |
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296 | ret |
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297 | |||
298 | .error: |
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299 | or eax, -1 |
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300 | DEBUGF 2,"Adding network device failed\n" |
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301 | ret |
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302 | |||
303 | |||
304 | |||
305 | ;----------------------------------------------------------------- |
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306 | ; |
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307 | ; NET_Remove_Device: |
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308 | ; |
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309 | ; This function is called by etwork drivers, |
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310 | ; to unregister network devices from the kernel |
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311 | ; |
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312 | ; IN: Pointer to device structure in ebx |
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313 | ; OUT: eax: -1 on error |
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314 | ; |
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315 | ;----------------------------------------------------------------- |
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316 | align 4 |
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317 | NET_remove_device: |
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318 | |||
319 | cmp [NET_RUNNING], 0 |
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320 | je .error |
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321 | |||
322 | ;---------------------------- |
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323 | ; Find the driver in the list |
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324 | |||
325 | mov eax, ebx |
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326 | mov ecx, MAX_NET_DEVICES |
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327 | mov edi, NET_DRV_LIST |
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328 | |||
329 | repne scasd |
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330 | jnz .error |
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331 | |||
332 | ;------------------------ |
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333 | ; Remove it from the list |
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334 | |||
335 | xor eax, eax |
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336 | mov dword [edi-4], eax |
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337 | |||
338 | dec [NET_RUNNING] |
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339 | ret |
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340 | |||
341 | .error: |
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342 | or eax, -1 |
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343 | ret |
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344 | |||
345 | |||
346 | |||
347 | ;----------------------------------------------------------------- |
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348 | ; |
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349 | ; NET_ptr_to_num |
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350 | ; |
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351 | ; IN: ebx = ptr to device struct |
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352 | ; OUT: edi = -1 on error, device number otherwise |
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353 | ; |
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354 | ;----------------------------------------------------------------- |
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355 | align 4 |
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356 | NET_ptr_to_num: |
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357 | push ecx |
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358 | |||
359 | mov ecx, MAX_NET_DEVICES |
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360 | mov edi, NET_DRV_LIST |
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361 | |||
362 | .loop: |
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363 | cmp ebx, [edi] |
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364 | jz .found |
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365 | add edi, 4 |
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366 | dec ecx |
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367 | jnz .loop |
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368 | |||
369 | ; repnz scasd could work too if eax is used instead of ebx! |
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370 | |||
371 | or edi, -1 |
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372 | |||
373 | pop ecx |
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374 | ret |
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375 | |||
376 | .found: |
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377 | sub edi, NET_DRV_LIST |
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378 | shr edi, 2 |
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379 | |||
380 | pop ecx |
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381 | ret |
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382 | |||
383 | |||
384 | |||
385 | |||
386 | ;-------------------------- |
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387 | ; |
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388 | ; NET_send |
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389 | ; |
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390 | ; IN: ebx = ptr to device struct |
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391 | ; [esp] = data ptr |
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392 | ; [esp + 4] = data size |
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393 | ; |
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394 | ; OUT: / |
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395 | ; |
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396 | ;-------------------------- |
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397 | align 4 |
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398 | NET_send: |
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399 | |||
400 | call [ebx + ETH_DEVICE.transmit] ;;;; |
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401 | |||
402 | ;;; TODO:check if packet was sent ok |
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403 | |||
404 | call kernel_free |
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405 | add esp, 4 |
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406 | ret |
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407 | |||
408 | |||
409 | |||
410 | |||
411 | ;----------------------------------------------------------------- |
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412 | ; |
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1249 | hidnplayr | 413 | ; checksum_1 |
414 | ; |
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1482 | hidnplayr | 415 | ; This is the first of two functions needed to calculate a checksum. |
1249 | hidnplayr | 416 | ; |
1473 | hidnplayr | 417 | ; IN: edx = start offset for semi-checksum |
1249 | hidnplayr | 418 | ; esi = pointer to data |
419 | ; ecx = data size |
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420 | ; OUT: edx = semi-checksum |
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421 | ; |
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1473 | hidnplayr | 422 | ; |
423 | ; Code was optimized by diamond |
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424 | ; |
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1249 | hidnplayr | 425 | ;----------------------------------------------------------------- |
426 | align 4 |
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427 | checksum_1: |
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1159 | hidnplayr | 428 | |
1249 | hidnplayr | 429 | shr ecx, 1 |
430 | pushf |
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1473 | hidnplayr | 431 | jz .no_2 |
1159 | hidnplayr | 432 | |
1473 | hidnplayr | 433 | shr ecx, 1 |
434 | pushf |
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435 | jz .no_4 |
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436 | |||
437 | shr ecx, 1 |
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438 | pushf |
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439 | jz .no_8 |
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440 | |||
441 | .loop: |
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442 | add dl, [esi+1] |
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443 | adc dh, [esi+0] |
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444 | |||
445 | adc dl, [esi+3] |
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446 | adc dh, [esi+2] |
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447 | |||
448 | adc dl, [esi+5] |
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449 | adc dh, [esi+4] |
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450 | |||
451 | adc dl, [esi+7] |
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452 | adc dh, [esi+6] |
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453 | |||
454 | adc edx, 0 |
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455 | add esi, 8 |
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456 | |||
457 | dec ecx |
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458 | jnz .loop |
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459 | |||
460 | adc edx, 0 |
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461 | |||
462 | .no_8: |
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1249 | hidnplayr | 463 | popf |
1473 | hidnplayr | 464 | jnc .no_4 |
465 | |||
466 | add dl, [esi+1] |
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467 | adc dh, [esi+0] |
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468 | |||
469 | adc dl, [esi+3] |
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470 | adc dh, [esi+2] |
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471 | |||
472 | adc edx, 0 |
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473 | add esi, 4 |
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474 | |||
475 | .no_4: |
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476 | popf |
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477 | jnc .no_2 |
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478 | |||
479 | add dl, [esi+1] |
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480 | adc dh, [esi+0] |
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481 | |||
482 | adc edx, 0 |
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1483 | hidnplayr | 483 | inc esi |
484 | inc esi |
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1473 | hidnplayr | 485 | |
486 | .no_2: |
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487 | popf |
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1249 | hidnplayr | 488 | jnc .end |
1159 | hidnplayr | 489 | |
1473 | hidnplayr | 490 | add dh, [esi+0] |
1251 | clevermous | 491 | adc edx, 0 |
1473 | hidnplayr | 492 | .end: |
493 | ret |
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1159 | hidnplayr | 494 | |
1249 | hidnplayr | 495 | ;----------------------------------------------------------------- |
496 | ; |
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497 | ; checksum_2 |
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498 | ; |
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499 | ; This function calculates the final ip/tcp/udp checksum for you |
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500 | ; |
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501 | ; IN: edx = semi-checksum |
||
502 | ; OUT: dx = checksum (in INET byte order) |
||
503 | ; |
||
504 | ;----------------------------------------------------------------- |
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505 | align 4 |
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506 | checksum_2: |
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507 | |||
508 | mov ecx, edx |
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509 | shr ecx, 16 |
||
510 | and edx, 0xffff |
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511 | add edx, ecx |
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512 | |||
1482 | hidnplayr | 513 | mov ecx, edx |
514 | shr ecx, 16 |
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515 | add edx, ecx |
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516 | |||
1249 | hidnplayr | 517 | not dx |
518 | jnz .not_zero |
||
519 | dec dx |
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520 | .not_zero: |
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521 | xchg dl, dh |
||
522 | |||
523 | DEBUGF 1,"Checksum: %x\n",dx |
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524 | |||
525 | ret |
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526 | |||
527 | |||
528 | |||
1159 | hidnplayr | 529 | ;---------------------------------------------------------------- |
530 | ; |
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1171 | hidnplayr | 531 | ; System function to work with network devices (73) |
1159 | hidnplayr | 532 | ; |
533 | ;---------------------------------------------------------------- |
||
534 | align 4 |
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535 | sys_network: |
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536 | |||
1196 | hidnplayr | 537 | cmp ebx, -1 |
538 | jne @f |
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539 | |||
1514 | hidnplayr | 540 | mov eax, [NET_RUNNING] |
1196 | hidnplayr | 541 | jmp .return |
542 | |||
543 | @@: |
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1159 | hidnplayr | 544 | cmp bh, MAX_NET_DEVICES ; Check if device number exists |
545 | jge .doesnt_exist |
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546 | |||
547 | mov esi, ebx |
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548 | and esi, 0x0000ff00 |
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549 | shr esi, 6 |
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550 | |||
1514 | hidnplayr | 551 | cmp dword [esi + NET_DRV_LIST], 0 ; check if driver is running |
1159 | hidnplayr | 552 | je .doesnt_exist |
553 | |||
1514 | hidnplayr | 554 | test bl, bl ; 0 = Get device type (ethernet/token ring/...) |
1159 | hidnplayr | 555 | jnz @f |
1514 | hidnplayr | 556 | |
1192 | hidnplayr | 557 | xor eax, eax |
558 | jmp .return |
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1159 | hidnplayr | 559 | |
560 | |||
561 | @@: |
||
562 | dec bl ; 1 = Get device name |
||
563 | jnz @f |
||
564 | |||
1514 | hidnplayr | 565 | mov esi, [esi + NET_DRV_LIST] |
1159 | hidnplayr | 566 | mov esi, [esi + ETH_DEVICE.name] |
567 | mov edi, ecx |
||
568 | |||
569 | mov ecx, 64 ; max length |
||
570 | repnz movsb |
||
571 | |||
1192 | hidnplayr | 572 | xor eax, eax |
573 | jmp .return |
||
1159 | hidnplayr | 574 | |
1192 | hidnplayr | 575 | @@: |
1159 | hidnplayr | 576 | |
1192 | hidnplayr | 577 | dec bl ; 2 = Reset the device |
578 | jnz @f |
||
579 | |||
1514 | hidnplayr | 580 | mov esi, [esi + NET_DRV_LIST] |
1192 | hidnplayr | 581 | call [esi + ETH_DEVICE.reset] |
582 | jmp .return |
||
583 | |||
1159 | hidnplayr | 584 | @@: |
1192 | hidnplayr | 585 | |
586 | dec bl ; 3 = Stop driver for this device |
||
587 | jnz @f |
||
588 | |||
1514 | hidnplayr | 589 | mov esi, [esi + NET_DRV_LIST] |
1192 | hidnplayr | 590 | call [esi + ETH_DEVICE.unload] |
591 | jmp .return |
||
592 | |||
593 | @@: |
||
1249 | hidnplayr | 594 | dec bl ; 4 = Get driver pointer |
595 | jnz @f |
||
1192 | hidnplayr | 596 | |
1249 | hidnplayr | 597 | ; ..; |
598 | |||
599 | |||
600 | @@: |
||
601 | ; ... ; 5 Get driver name |
||
602 | |||
1159 | hidnplayr | 603 | .doesnt_exist: |
604 | DEBUGF 1,"sys_network: invalid device/function specified!\n" |
||
605 | mov eax, -1 |
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606 | |||
1192 | hidnplayr | 607 | .return: |
608 | mov [esp+28+4], eax |
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1159 | hidnplayr | 609 | ret |
610 | |||
611 | |||
612 | ;---------------------------------------------------------------- |
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613 | ; |
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1514 | hidnplayr | 614 | ; System function to work with protocols (75) |
1159 | hidnplayr | 615 | ; |
616 | ;---------------------------------------------------------------- |
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617 | align 4 |
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618 | sys_protocols: |
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619 | cmp bh, MAX_NET_DEVICES ; Check if device number exists |
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620 | jge .doesnt_exist |
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621 | |||
622 | mov esi, ebx |
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623 | and esi, 0x0000ff00 |
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1514 | hidnplayr | 624 | shr esi, 6 ; now we have the device num * 4 in esi |
625 | cmp dword [esi + NET_DRV_LIST], 0 ; check if driver is running |
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1159 | hidnplayr | 626 | je .doesnt_exist |
627 | |||
628 | push .return ; return address (we will be using jumps instead of calls) |
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629 | |||
630 | mov eax, ebx ; set ax to protocol number |
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631 | shr eax, 16 ; |
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632 | |||
633 | cmp ax , IP_PROTO_IP |
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634 | je IPv4_API |
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635 | |||
636 | cmp ax , IP_PROTO_ICMP |
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637 | je ICMP_API |
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638 | |||
639 | cmp ax , IP_PROTO_UDP |
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640 | je UDP_API |
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641 | |||
1171 | hidnplayr | 642 | cmp ax , IP_PROTO_TCP |
1254 | hidnplayr | 643 | je TCP_API |
1159 | hidnplayr | 644 | |
1171 | hidnplayr | 645 | cmp ax , ETHER_ARP |
1159 | hidnplayr | 646 | je ARP_API |
647 | |||
1514 | hidnplayr | 648 | cmp ax , 1337 |
1159 | hidnplayr | 649 | je ETH_API |
650 | |||
1171 | hidnplayr | 651 | add esp, 4 ; if we reached here, no function was called, so we need to balance stack |
1159 | hidnplayr | 652 | |
653 | .doesnt_exist: |
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1171 | hidnplayr | 654 | DEBUGF 1,"sys_protocols: protocol %u doesnt exist on device %u!\n",ax, bh |
1159 | hidnplayr | 655 | mov eax, -1 |
656 | |||
657 | .return: |
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1171 | hidnplayr | 658 | mov [esp+28+4], eax |
1257 | hidnplayr | 659 | ret |
1473 | hidnplayr | 660 | |
661 | |||
662 | __DEBUG_LEVEL__ equ __DEBUG_LEVEL_OLD__ |