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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: 1519 $ |
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 |
1519 | hidnplayr | 38 | ETHER_ARP equ 0x0608 |
39 | ETHER_IPv4 equ 0x0008 ; Reversed from 0800 for intel |
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40 | ETHER_PPP_DISCOVERY equ 0x6388 |
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41 | ETHER_PPP_SESSION equ 0x6488 |
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1185 | hidnplayr | 42 | |
1514 | hidnplayr | 43 | ;Protocol family |
1254 | hidnplayr | 44 | AF_UNSPEC equ 0 |
1249 | hidnplayr | 45 | AF_UNIX equ 1 |
1159 | hidnplayr | 46 | AF_INET4 equ 2 |
47 | ;AF_AX25 equ 3 |
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48 | ;AF_IPX equ 4 |
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49 | ;AF_APPLETALK equ 5 |
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50 | ;AF_NETROM equ 6 |
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51 | ;AF_BRIDGE equ 7 |
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52 | ;AF_AAL5 equ 8 |
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53 | ;AF_X25 equ 9 |
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1514 | hidnplayr | 54 | AF_INET6 equ 10 |
1159 | hidnplayr | 55 | ;AF_MAX equ 12 |
56 | |||
1514 | hidnplayr | 57 | ; Internet protocol numbers |
1159 | hidnplayr | 58 | IP_PROTO_IP equ 0 |
59 | IP_PROTO_ICMP equ 1 |
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60 | IP_PROTO_TCP equ 6 |
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61 | IP_PROTO_UDP equ 17 |
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62 | |||
1200 | hidnplayr | 63 | ; Socket types |
1514 | hidnplayr | 64 | SOCK_STREAM equ 1 |
65 | SOCK_DGRAM equ 2 |
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66 | SOCK_RAW equ 3 |
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1200 | hidnplayr | 67 | |
1514 | hidnplayr | 68 | ; Socket options |
69 | SO_ACCEPTCON equ 1 |
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1159 | hidnplayr | 70 | |
1514 | hidnplayr | 71 | SOCKET_MAXDATA equ 4096 |
1254 | hidnplayr | 72 | |
1514 | hidnplayr | 73 | ; Network driver types |
74 | NET_TYPE_ETH equ 1 |
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75 | NET_TYPE_SLIP equ 2 |
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1254 | hidnplayr | 76 | |
77 | |||
1514 | hidnplayr | 78 | virtual at 0 |
1254 | hidnplayr | 79 | |
1514 | hidnplayr | 80 | NET_DEVICE: |
1519 | hidnplayr | 81 | |
82 | .type dd ? ; Type field |
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83 | .mtu dd ? ; Maximal Transmission Unit |
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84 | .name dd ? ; Ptr to 0 terminated string |
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85 | |||
86 | .unload dd ? ; Ptrs to driver functions |
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87 | .reset dd ? ; |
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88 | .transmit dd ? ; |
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89 | |||
90 | .bytes_tx dq ? ; Statistics, updated by the driver |
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91 | .bytes_rx dq ? ; |
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92 | .packets_tx dd ? ; |
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93 | .packets_rx dd ? ; |
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94 | |||
1514 | hidnplayr | 95 | .end: |
1254 | hidnplayr | 96 | |
1514 | hidnplayr | 97 | end virtual |
1254 | hidnplayr | 98 | |
99 | |||
1514 | hidnplayr | 100 | ; Exactly as it says.. |
1318 | hidnplayr | 101 | macro pseudo_random reg { |
102 | add reg, [esp] |
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103 | rol reg, 5 |
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104 | xor reg, [timer_ticks] |
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105 | imul reg, 214013 |
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106 | xor reg, 0xdeadbeef |
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107 | rol reg, 9 |
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1514 | hidnplayr | 108 | } |
1318 | hidnplayr | 109 | |
1514 | hidnplayr | 110 | macro ntohld reg { |
1318 | hidnplayr | 111 | |
1514 | hidnplayr | 112 | rol word reg, 8 |
113 | rol dword reg, 16 |
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114 | rol word reg, 8 |
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115 | |||
1318 | hidnplayr | 116 | } |
117 | |||
1514 | hidnplayr | 118 | macro ntohlw reg { |
119 | |||
120 | rol word reg, 8 |
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121 | |||
122 | } |
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123 | |||
124 | |||
1159 | hidnplayr | 125 | include "queue.inc" |
1514 | hidnplayr | 126 | |
127 | include "ethernet.inc" |
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128 | ;include "slip.inc" |
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129 | |||
1187 | hidnplayr | 130 | include "ARP.inc" |
131 | include "IPv4.inc" |
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1514 | hidnplayr | 132 | |
133 | include "icmp.inc" |
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134 | include "udp.inc" |
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1249 | hidnplayr | 135 | include "tcp.inc" |
1159 | hidnplayr | 136 | |
1514 | hidnplayr | 137 | include "socket.inc" |
138 | |||
139 | |||
140 | |||
141 | align 4 |
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142 | uglobal |
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143 | |||
144 | NET_RUNNING dd ? |
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145 | NET_DRV_LIST rd MAX_NET_DEVICES |
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146 | |||
147 | endg |
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148 | |||
149 | |||
1257 | hidnplayr | 150 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 151 | ; |
152 | ; stack_init |
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153 | ; |
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154 | ; This function calls all network init procedures |
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155 | ; |
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156 | ; IN: / |
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157 | ; OUT: / |
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158 | ; |
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1257 | hidnplayr | 159 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 160 | align 4 |
161 | stack_init: |
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162 | |||
1514 | hidnplayr | 163 | ; Init the network drivers list |
164 | |||
165 | xor eax, eax |
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166 | mov edi, NET_RUNNING |
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167 | mov ecx, MAX_NET_DEVICES + 1 |
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168 | rep stosd |
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169 | |||
170 | ; Call other init procedures |
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171 | |||
1159 | hidnplayr | 172 | call ETH_init |
1514 | hidnplayr | 173 | ; call SLIP_init |
174 | |||
1159 | hidnplayr | 175 | call IPv4_init |
1514 | hidnplayr | 176 | call ICMP_init |
177 | |||
1159 | hidnplayr | 178 | call ARP_init |
179 | call UDP_init |
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1249 | hidnplayr | 180 | call TCP_init |
1514 | hidnplayr | 181 | |
1159 | hidnplayr | 182 | call socket_init |
183 | |||
1514 | hidnplayr | 184 | mov [net_tmr_count], 0 |
1159 | hidnplayr | 185 | |
186 | ret |
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187 | |||
188 | |||
1257 | hidnplayr | 189 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 190 | ; |
191 | ; stack_handler |
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192 | ; |
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1514 | hidnplayr | 193 | ; This function is called in kernel loop |
1159 | hidnplayr | 194 | ; |
195 | ; IN: / |
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196 | ; OUT: / |
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197 | ; |
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1257 | hidnplayr | 198 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 199 | align 4 |
200 | stack_handler: |
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201 | |||
1514 | hidnplayr | 202 | cmp [NET_RUNNING], 0 |
1257 | hidnplayr | 203 | je .exit |
1159 | hidnplayr | 204 | |
1318 | hidnplayr | 205 | ; Test for 10ms tick |
1257 | hidnplayr | 206 | mov eax, [timer_ticks] |
1514 | hidnplayr | 207 | cmp eax, [net_10ms] |
1257 | hidnplayr | 208 | je .exit |
1514 | hidnplayr | 209 | mov [net_10ms], eax |
1159 | hidnplayr | 210 | |
1519 | hidnplayr | 211 | test [net_10ms], 0x0f ; 160ms |
212 | jnz .exit |
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1249 | hidnplayr | 213 | |
1519 | hidnplayr | 214 | ; call TCP_timer_160ms |
1159 | hidnplayr | 215 | |
1519 | hidnplayr | 216 | test [net_10ms], 0x3f ; 640ms |
217 | jnz .exit |
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218 | |||
219 | ; call TCP_timer_640ms |
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1257 | hidnplayr | 220 | call ARP_decrease_entry_ttls |
221 | call IPv4_decrease_fragment_ttls |
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1159 | hidnplayr | 222 | |
223 | .exit: |
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1257 | hidnplayr | 224 | ret |
1159 | hidnplayr | 225 | |
226 | |||
1514 | hidnplayr | 227 | |
1249 | hidnplayr | 228 | ;----------------------------------------------------------------- |
229 | ; |
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1514 | hidnplayr | 230 | ; NET_Add_Device: |
231 | ; |
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232 | ; This function is called by the network drivers, |
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233 | ; to register each running NIC to the kernel |
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234 | ; |
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235 | ; IN: Pointer to device structure in ebx |
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236 | ; OUT: Device num in eax, -1 on error |
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237 | ; |
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238 | ;----------------------------------------------------------------- |
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239 | align 4 |
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240 | NET_add_device: |
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241 | |||
242 | DEBUGF 1,"NET_Add_Device: %x\n", ebx |
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243 | |||
244 | mov eax, [NET_RUNNING] |
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245 | cmp eax, MAX_NET_DEVICES |
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246 | jge .error |
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247 | |||
248 | ;---------------------------------- |
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249 | ; Check if device is already listed |
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250 | mov eax, ebx |
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251 | 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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252 | mov edi, NET_DRV_LIST |
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253 | |||
254 | repne scasd ; See if device is already in the list |
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255 | jz .error |
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256 | |||
257 | ;---------------------------- |
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258 | ; Find empty slot in the list |
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259 | xor eax, eax |
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260 | mov ecx, MAX_NET_DEVICES |
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261 | mov edi, NET_DRV_LIST |
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262 | |||
263 | repne scasd |
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264 | jnz .error |
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265 | |||
266 | sub edi, 4 |
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267 | |||
268 | cmp [ebx + NET_DEVICE.type], NET_TYPE_ETH |
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269 | je .ethernet |
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270 | |||
271 | cmp [ebx + NET_DEVICE.type], NET_TYPE_SLIP |
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272 | je .slip |
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273 | |||
274 | DEBUGF 1,"Unknown network device type: %u\n", [ebx + NET_DEVICE.type] |
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275 | jmp .error |
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276 | |||
277 | .ethernet: |
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278 | DEBUGF 1,"Trying to add an ethernet driver\n" |
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279 | |||
280 | inc [ETH_RUNNING] ; Indicate that one more ethernet device is up and running |
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281 | jmp .add_it |
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282 | |||
283 | .slip: |
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284 | DEBUGF 1,"Trying to add a slip driver\n" |
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285 | ;;;; |
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286 | jmp .error |
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287 | |||
288 | |||
289 | .add_it: |
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290 | |||
291 | ;----------------------------- |
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292 | ; Add device to the found slot |
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293 | mov [edi], ebx ; add device to list |
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294 | |||
295 | sub edi, NET_DRV_LIST ; Calculate device number in eax |
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296 | mov eax, edi ; |
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297 | shr eax, 2 |
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298 | |||
299 | inc [NET_RUNNING] ; Indicate that one more network device is up and running |
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300 | |||
301 | DEBUGF 1,"Device number: %u\n",eax |
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302 | ret |
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303 | |||
304 | .error: |
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305 | or eax, -1 |
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306 | DEBUGF 2,"Adding network device failed\n" |
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307 | ret |
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308 | |||
309 | |||
310 | |||
311 | ;----------------------------------------------------------------- |
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312 | ; |
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313 | ; NET_Remove_Device: |
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314 | ; |
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315 | ; This function is called by etwork drivers, |
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316 | ; to unregister network devices from the kernel |
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317 | ; |
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318 | ; IN: Pointer to device structure in ebx |
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319 | ; OUT: eax: -1 on error |
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320 | ; |
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321 | ;----------------------------------------------------------------- |
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322 | align 4 |
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323 | NET_remove_device: |
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324 | |||
325 | cmp [NET_RUNNING], 0 |
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326 | je .error |
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327 | |||
328 | ;---------------------------- |
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329 | ; Find the driver in the list |
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330 | |||
331 | mov eax, ebx |
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332 | mov ecx, MAX_NET_DEVICES |
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333 | mov edi, NET_DRV_LIST |
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334 | |||
335 | repne scasd |
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336 | jnz .error |
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337 | |||
338 | ;------------------------ |
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339 | ; Remove it from the list |
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340 | |||
341 | xor eax, eax |
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342 | mov dword [edi-4], eax |
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343 | |||
344 | dec [NET_RUNNING] |
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345 | ret |
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346 | |||
347 | .error: |
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348 | or eax, -1 |
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349 | ret |
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350 | |||
351 | |||
352 | |||
353 | ;----------------------------------------------------------------- |
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354 | ; |
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355 | ; NET_ptr_to_num |
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356 | ; |
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357 | ; IN: ebx = ptr to device struct |
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358 | ; OUT: edi = -1 on error, device number otherwise |
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359 | ; |
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360 | ;----------------------------------------------------------------- |
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361 | align 4 |
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362 | NET_ptr_to_num: |
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363 | push ecx |
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364 | |||
365 | mov ecx, MAX_NET_DEVICES |
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366 | mov edi, NET_DRV_LIST |
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367 | |||
368 | .loop: |
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369 | cmp ebx, [edi] |
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370 | jz .found |
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371 | add edi, 4 |
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372 | dec ecx |
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373 | jnz .loop |
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374 | |||
375 | ; repnz scasd could work too if eax is used instead of ebx! |
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376 | |||
377 | or edi, -1 |
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378 | |||
379 | pop ecx |
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380 | ret |
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381 | |||
382 | .found: |
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383 | sub edi, NET_DRV_LIST |
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384 | shr edi, 2 |
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385 | |||
386 | pop ecx |
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387 | ret |
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388 | |||
389 | ;----------------------------------------------------------------- |
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390 | ; |
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1249 | hidnplayr | 391 | ; checksum_1 |
392 | ; |
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1482 | hidnplayr | 393 | ; This is the first of two functions needed to calculate a checksum. |
1249 | hidnplayr | 394 | ; |
1473 | hidnplayr | 395 | ; IN: edx = start offset for semi-checksum |
1249 | hidnplayr | 396 | ; esi = pointer to data |
397 | ; ecx = data size |
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398 | ; OUT: edx = semi-checksum |
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399 | ; |
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1473 | hidnplayr | 400 | ; |
401 | ; Code was optimized by diamond |
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402 | ; |
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1249 | hidnplayr | 403 | ;----------------------------------------------------------------- |
404 | align 4 |
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405 | checksum_1: |
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1159 | hidnplayr | 406 | |
1249 | hidnplayr | 407 | shr ecx, 1 |
408 | pushf |
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1473 | hidnplayr | 409 | jz .no_2 |
1159 | hidnplayr | 410 | |
1473 | hidnplayr | 411 | shr ecx, 1 |
412 | pushf |
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413 | jz .no_4 |
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414 | |||
415 | shr ecx, 1 |
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416 | pushf |
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417 | jz .no_8 |
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418 | |||
419 | .loop: |
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420 | add dl, [esi+1] |
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421 | adc dh, [esi+0] |
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422 | |||
423 | adc dl, [esi+3] |
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424 | adc dh, [esi+2] |
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425 | |||
426 | adc dl, [esi+5] |
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427 | adc dh, [esi+4] |
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428 | |||
429 | adc dl, [esi+7] |
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430 | adc dh, [esi+6] |
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431 | |||
432 | adc edx, 0 |
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433 | add esi, 8 |
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434 | |||
435 | dec ecx |
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436 | jnz .loop |
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437 | |||
438 | adc edx, 0 |
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439 | |||
440 | .no_8: |
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1249 | hidnplayr | 441 | popf |
1473 | hidnplayr | 442 | jnc .no_4 |
443 | |||
444 | add dl, [esi+1] |
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445 | adc dh, [esi+0] |
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446 | |||
447 | adc dl, [esi+3] |
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448 | adc dh, [esi+2] |
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449 | |||
450 | adc edx, 0 |
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451 | add esi, 4 |
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452 | |||
453 | .no_4: |
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454 | popf |
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455 | jnc .no_2 |
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456 | |||
457 | add dl, [esi+1] |
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458 | adc dh, [esi+0] |
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459 | |||
460 | adc edx, 0 |
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1483 | hidnplayr | 461 | inc esi |
462 | inc esi |
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1473 | hidnplayr | 463 | |
464 | .no_2: |
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465 | popf |
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1249 | hidnplayr | 466 | jnc .end |
1159 | hidnplayr | 467 | |
1473 | hidnplayr | 468 | add dh, [esi+0] |
1251 | clevermous | 469 | adc edx, 0 |
1473 | hidnplayr | 470 | .end: |
471 | ret |
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1159 | hidnplayr | 472 | |
1249 | hidnplayr | 473 | ;----------------------------------------------------------------- |
474 | ; |
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475 | ; checksum_2 |
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476 | ; |
||
477 | ; This function calculates the final ip/tcp/udp checksum for you |
||
478 | ; |
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479 | ; IN: edx = semi-checksum |
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480 | ; OUT: dx = checksum (in INET byte order) |
||
481 | ; |
||
482 | ;----------------------------------------------------------------- |
||
483 | align 4 |
||
484 | checksum_2: |
||
485 | |||
486 | mov ecx, edx |
||
487 | shr ecx, 16 |
||
488 | and edx, 0xffff |
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489 | add edx, ecx |
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490 | |||
1482 | hidnplayr | 491 | mov ecx, edx |
492 | shr ecx, 16 |
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493 | add edx, ecx |
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494 | |||
1249 | hidnplayr | 495 | not dx |
496 | jnz .not_zero |
||
497 | dec dx |
||
498 | .not_zero: |
||
499 | xchg dl, dh |
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500 | |||
501 | DEBUGF 1,"Checksum: %x\n",dx |
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502 | |||
503 | ret |
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504 | |||
505 | |||
506 | |||
1159 | hidnplayr | 507 | ;---------------------------------------------------------------- |
508 | ; |
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1171 | hidnplayr | 509 | ; System function to work with network devices (73) |
1159 | hidnplayr | 510 | ; |
511 | ;---------------------------------------------------------------- |
||
512 | align 4 |
||
513 | sys_network: |
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514 | |||
1196 | hidnplayr | 515 | cmp ebx, -1 |
516 | jne @f |
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517 | |||
1514 | hidnplayr | 518 | mov eax, [NET_RUNNING] |
1196 | hidnplayr | 519 | jmp .return |
520 | |||
521 | @@: |
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1159 | hidnplayr | 522 | cmp bh, MAX_NET_DEVICES ; Check if device number exists |
523 | jge .doesnt_exist |
||
524 | |||
525 | mov esi, ebx |
||
526 | and esi, 0x0000ff00 |
||
527 | shr esi, 6 |
||
528 | |||
1514 | hidnplayr | 529 | cmp dword [esi + NET_DRV_LIST], 0 ; check if driver is running |
1159 | hidnplayr | 530 | je .doesnt_exist |
531 | |||
1514 | hidnplayr | 532 | test bl, bl ; 0 = Get device type (ethernet/token ring/...) |
1159 | hidnplayr | 533 | jnz @f |
1514 | hidnplayr | 534 | |
1192 | hidnplayr | 535 | xor eax, eax |
536 | jmp .return |
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1159 | hidnplayr | 537 | |
538 | |||
539 | @@: |
||
540 | dec bl ; 1 = Get device name |
||
541 | jnz @f |
||
542 | |||
1514 | hidnplayr | 543 | mov esi, [esi + NET_DRV_LIST] |
1519 | hidnplayr | 544 | mov esi, [esi + NET_DEVICE.name] |
1159 | hidnplayr | 545 | mov edi, ecx |
546 | |||
547 | mov ecx, 64 ; max length |
||
548 | repnz movsb |
||
549 | |||
1192 | hidnplayr | 550 | xor eax, eax |
551 | jmp .return |
||
1159 | hidnplayr | 552 | |
1192 | hidnplayr | 553 | @@: |
1159 | hidnplayr | 554 | |
1192 | hidnplayr | 555 | dec bl ; 2 = Reset the device |
556 | jnz @f |
||
557 | |||
1514 | hidnplayr | 558 | mov esi, [esi + NET_DRV_LIST] |
1519 | hidnplayr | 559 | call [esi + NET_DEVICE.reset] |
1192 | hidnplayr | 560 | jmp .return |
561 | |||
1159 | hidnplayr | 562 | @@: |
1192 | hidnplayr | 563 | |
564 | dec bl ; 3 = Stop driver for this device |
||
565 | jnz @f |
||
566 | |||
1514 | hidnplayr | 567 | mov esi, [esi + NET_DRV_LIST] |
1519 | hidnplayr | 568 | call [esi + NET_DEVICE.unload] |
1192 | hidnplayr | 569 | jmp .return |
570 | |||
571 | @@: |
||
1249 | hidnplayr | 572 | dec bl ; 4 = Get driver pointer |
573 | jnz @f |
||
1192 | hidnplayr | 574 | |
1249 | hidnplayr | 575 | ; ..; |
576 | |||
577 | |||
578 | @@: |
||
579 | ; ... ; 5 Get driver name |
||
580 | |||
1159 | hidnplayr | 581 | .doesnt_exist: |
582 | DEBUGF 1,"sys_network: invalid device/function specified!\n" |
||
583 | mov eax, -1 |
||
584 | |||
1192 | hidnplayr | 585 | .return: |
586 | mov [esp+28+4], eax |
||
1159 | hidnplayr | 587 | ret |
588 | |||
589 | |||
590 | ;---------------------------------------------------------------- |
||
591 | ; |
||
1514 | hidnplayr | 592 | ; System function to work with protocols (75) |
1159 | hidnplayr | 593 | ; |
594 | ;---------------------------------------------------------------- |
||
595 | align 4 |
||
596 | sys_protocols: |
||
597 | cmp bh, MAX_NET_DEVICES ; Check if device number exists |
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598 | jge .doesnt_exist |
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599 | |||
600 | mov esi, ebx |
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601 | and esi, 0x0000ff00 |
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1514 | hidnplayr | 602 | shr esi, 6 ; now we have the device num * 4 in esi |
603 | cmp dword [esi + NET_DRV_LIST], 0 ; check if driver is running |
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1159 | hidnplayr | 604 | je .doesnt_exist |
605 | |||
606 | push .return ; return address (we will be using jumps instead of calls) |
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607 | |||
608 | mov eax, ebx ; set ax to protocol number |
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609 | shr eax, 16 ; |
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610 | |||
611 | cmp ax , IP_PROTO_IP |
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612 | je IPv4_API |
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613 | |||
614 | cmp ax , IP_PROTO_ICMP |
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615 | je ICMP_API |
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616 | |||
617 | cmp ax , IP_PROTO_UDP |
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618 | je UDP_API |
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619 | |||
1171 | hidnplayr | 620 | cmp ax , IP_PROTO_TCP |
1254 | hidnplayr | 621 | je TCP_API |
1159 | hidnplayr | 622 | |
1171 | hidnplayr | 623 | cmp ax , ETHER_ARP |
1159 | hidnplayr | 624 | je ARP_API |
625 | |||
1519 | hidnplayr | 626 | cmp ax , 1337 ;;;;; |
1159 | hidnplayr | 627 | je ETH_API |
628 | |||
1171 | hidnplayr | 629 | add esp, 4 ; if we reached here, no function was called, so we need to balance stack |
1159 | hidnplayr | 630 | |
631 | .doesnt_exist: |
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1519 | hidnplayr | 632 | DEBUGF 1,"sys_protocols: protocol %u doesnt exist on device %u!\n", ax, bh |
1159 | hidnplayr | 633 | mov eax, -1 |
634 | |||
635 | .return: |
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1171 | hidnplayr | 636 | mov [esp+28+4], eax |
1257 | hidnplayr | 637 | ret |
1473 | hidnplayr | 638 | |
639 | |||
640 | __DEBUG_LEVEL__ equ __DEBUG_LEVEL_OLD__ |