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1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
2 | ;; ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;; |
4 | ;; Distributed under terms of the GNU General Public License ;; |
4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
5 | ;; ;; |
6 | ;; UDP.INC ;; |
6 | ;; UDP.INC ;; |
7 | ;; ;; |
7 | ;; ;; |
8 | ;; Part of the tcp/ip network stack for KolibriOS ;; |
8 | ;; Part of the tcp/ip network stack for KolibriOS ;; |
9 | ;; ;; |
9 | ;; ;; |
10 | ;; Written by hidnplayr@kolibrios.org ;; |
10 | ;; Written by hidnplayr@kolibrios.org ;; |
11 | ;; ;; |
11 | ;; ;; |
12 | ;; GNU GENERAL PUBLIC LICENSE ;; |
12 | ;; GNU GENERAL PUBLIC LICENSE ;; |
13 | ;; Version 2, June 1991 ;; |
13 | ;; Version 2, June 1991 ;; |
14 | ;; ;; |
14 | ;; ;; |
15 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
15 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
16 | 16 | ||
17 | $Revision: 2995 $ |
17 | $Revision: 2995 $ |
18 | 18 | ||
19 | 19 | ||
20 | struct UDP_header |
20 | struct UDP_header |
21 | 21 | ||
22 | SourcePort dw ? |
22 | SourcePort dw ? |
23 | DestinationPort dw ? |
23 | DestinationPort dw ? |
24 | Length dw ? ; Length of (UDP Header + Data) |
24 | Length dw ? ; Length of (UDP Header + Data) |
25 | Checksum dw ? |
25 | Checksum dw ? |
26 | 26 | ||
27 | ends |
27 | ends |
28 | 28 | ||
29 | 29 | ||
30 | uglobal |
30 | uglobal |
31 | align 4 |
31 | align 4 |
32 | 32 | ||
33 | UDP_PACKETS_TX rd NET_DEVICES_MAX |
33 | UDP_PACKETS_TX rd NET_DEVICES_MAX |
34 | UDP_PACKETS_RX rd NET_DEVICES_MAX |
34 | UDP_PACKETS_RX rd NET_DEVICES_MAX |
35 | 35 | ||
36 | endg |
36 | endg |
37 | 37 | ||
38 | 38 | ||
39 | ;----------------------------------------------------------------- |
39 | ;----------------------------------------------------------------- |
40 | ; |
40 | ; |
41 | ; UDP_init |
41 | ; UDP_init |
42 | ; |
42 | ; |
43 | ; This function resets all UDP variables |
43 | ; This function resets all UDP variables |
44 | ; |
44 | ; |
45 | ;----------------------------------------------------------------- |
45 | ;----------------------------------------------------------------- |
46 | macro UDP_init { |
46 | macro UDP_init { |
47 | 47 | ||
48 | xor eax, eax |
48 | xor eax, eax |
49 | mov edi, UDP_PACKETS_TX |
49 | mov edi, UDP_PACKETS_TX |
50 | mov ecx, 2*NET_DEVICES_MAX |
50 | mov ecx, 2*NET_DEVICES_MAX |
51 | rep stosd |
51 | rep stosd |
52 | } |
52 | } |
53 | 53 | ||
54 | 54 | ||
55 | macro UDP_checksum IP1, IP2 { ; esi = ptr to udp packet, ecx = packet size, destroys: ecx, edx |
55 | macro UDP_checksum IP1, IP2 { ; esi = ptr to udp packet, ecx = packet size, destroys: ecx, edx |
56 | 56 | ||
57 | ; Pseudoheader |
57 | ; Pseudoheader |
58 | mov edx, IP_PROTO_UDP |
58 | mov edx, IP_PROTO_UDP |
59 | 59 | ||
60 | add dl, [IP1+1] |
60 | add dl, [IP1+1] |
61 | adc dh, [IP1+0] |
61 | adc dh, [IP1+0] |
62 | adc dl, [IP1+3] |
62 | adc dl, [IP1+3] |
63 | adc dh, [IP1+2] |
63 | adc dh, [IP1+2] |
64 | 64 | ||
65 | adc dl, [IP2+1] |
65 | adc dl, [IP2+1] |
66 | adc dh, [IP2+0] |
66 | adc dh, [IP2+0] |
67 | adc dl, [IP2+3] |
67 | adc dl, [IP2+3] |
68 | adc dh, [IP2+2] |
68 | adc dh, [IP2+2] |
69 | 69 | ||
70 | adc dl, cl ; byte[esi+UDP_header.Length+1] |
70 | adc dl, cl ; byte[esi+UDP_header.Length+1] |
71 | adc dh, ch ; byte[esi+UDP_header.Length+0] |
71 | adc dh, ch ; byte[esi+UDP_header.Length+0] |
72 | 72 | ||
73 | ; Done with pseudoheader, now do real header |
73 | ; Done with pseudoheader, now do real header |
74 | adc dl, byte[esi+UDP_header.SourcePort+1] |
74 | adc dl, byte[esi+UDP_header.SourcePort+1] |
75 | adc dh, byte[esi+UDP_header.SourcePort+0] |
75 | adc dh, byte[esi+UDP_header.SourcePort+0] |
76 | 76 | ||
77 | adc dl, byte[esi+UDP_header.DestinationPort+1] |
77 | adc dl, byte[esi+UDP_header.DestinationPort+1] |
78 | adc dh, byte[esi+UDP_header.DestinationPort+0] |
78 | adc dh, byte[esi+UDP_header.DestinationPort+0] |
79 | 79 | ||
80 | adc dl, byte[esi+UDP_header.Length+1] |
80 | adc dl, byte[esi+UDP_header.Length+1] |
81 | adc dh, byte[esi+UDP_header.Length+0] |
81 | adc dh, byte[esi+UDP_header.Length+0] |
82 | 82 | ||
83 | adc edx, 0 |
83 | adc edx, 0 |
84 | 84 | ||
85 | ; Done with header, now do data |
85 | ; Done with header, now do data |
86 | push esi |
86 | push esi |
87 | movzx ecx, [esi+UDP_header.Length] |
87 | movzx ecx, [esi+UDP_header.Length] |
88 | rol cx , 8 |
88 | rol cx , 8 |
89 | sub cx , sizeof.UDP_header |
89 | sub cx , sizeof.UDP_header |
90 | add esi, sizeof.UDP_header |
90 | add esi, sizeof.UDP_header |
91 | 91 | ||
92 | call checksum_1 |
92 | call checksum_1 |
93 | call checksum_2 |
93 | call checksum_2 |
94 | pop esi |
94 | pop esi |
95 | 95 | ||
96 | add [esi+UDP_header.Checksum], dx ; this final instruction will set or clear ZF :) |
96 | add [esi+UDP_header.Checksum], dx ; this final instruction will set or clear ZF :) |
97 | 97 | ||
98 | } |
98 | } |
99 | 99 | ||
100 | 100 | ||
101 | ;----------------------------------------------------------------- |
101 | ;----------------------------------------------------------------- |
102 | ; |
102 | ; |
103 | ; UDP_input: |
103 | ; UDP_input: |
104 | ; |
104 | ; |
105 | ; Called by IPv4_input, |
105 | ; Called by IPv4_input, |
106 | ; this procedure will inject the udp data diagrams in the application sockets. |
106 | ; this procedure will inject the udp data diagrams in the application sockets. |
107 | ; |
107 | ; |
108 | ; IN: [esp] = Pointer to buffer |
108 | ; IN: [esp] = Pointer to buffer |
109 | ; [esp+4] = size of buffer |
109 | ; [esp+4] = size of buffer |
110 | ; ebx = ptr to device struct |
110 | ; ebx = ptr to device struct |
111 | ; ecx = UDP Packet size |
111 | ; ecx = UDP Packet size |
112 | ; esi = ptr to UDP header |
112 | ; esi = ptr to UDP header |
113 | ; edi = ptr to ipv4 source and dest address |
113 | ; edi = ptr to ipv4 source and dest address |
114 | ; |
114 | ; |
115 | ; OUT: / |
115 | ; OUT: / |
116 | ; |
116 | ; |
117 | ;----------------------------------------------------------------- |
117 | ;----------------------------------------------------------------- |
118 | align 4 |
118 | align 4 |
119 | UDP_input: |
119 | UDP_input: |
120 | 120 | ||
121 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: size=%u\n", ecx |
121 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: size=%u\n", ecx |
122 | 122 | ||
123 | ; First validate, checksum |
123 | ; First validate, checksum |
124 | 124 | ||
125 | neg [esi + UDP_header.Checksum] ; substract checksum from 0 |
125 | neg [esi + UDP_header.Checksum] ; substract checksum from 0 |
126 | jz .no_checksum ; if checksum is zero, it is considered valid |
126 | jz .no_checksum ; if checksum is zero, it is considered valid |
127 | 127 | ||
128 | ; otherwise, we will re-calculate the checksum and add it to this value, thus creating 0 when it is correct |
128 | ; otherwise, we will re-calculate the checksum and add it to this value, thus creating 0 when it is correct |
129 | 129 | ||
130 | UDP_checksum (edi), (edi+4) |
130 | UDP_checksum (edi), (edi+4) |
131 | jnz .checksum_mismatch |
131 | jnz .checksum_mismatch |
132 | 132 | ||
133 | .no_checksum: |
133 | .no_checksum: |
134 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: checksum ok\n" |
134 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: checksum ok\n" |
135 | 135 | ||
136 | ; Convert length to little endian |
136 | ; Convert length to little endian |
137 | 137 | ||
138 | rol [esi + UDP_header.Length], 8 |
138 | rol [esi + UDP_header.Length], 8 |
139 | 139 | ||
140 | ; Look for a socket where |
140 | ; Look for a socket where |
141 | ; IP Packet UDP Destination Port = local Port |
141 | ; IP Packet UDP Destination Port = local Port |
142 | ; IP Packet SA = Remote IP |
142 | ; IP Packet SA = Remote IP |
143 | 143 | ||
144 | pusha |
144 | pusha |
145 | mov ecx, socket_mutex |
145 | mov ecx, socket_mutex |
146 | call mutex_lock |
146 | call mutex_lock |
147 | popa |
147 | popa |
148 | 148 | ||
149 | mov cx, [esi + UDP_header.SourcePort] |
149 | mov cx, [esi + UDP_header.SourcePort] |
150 | mov dx, [esi + UDP_header.DestinationPort] |
150 | mov dx, [esi + UDP_header.DestinationPort] |
151 | mov edi, [edi + 4] ; ipv4 source address |
151 | mov edi, [edi + 4] ; ipv4 source address |
152 | mov eax, net_sockets |
152 | mov eax, net_sockets |
153 | 153 | ||
154 | .next_socket: |
154 | .next_socket: |
155 | mov eax, [eax + SOCKET.NextPtr] |
155 | mov eax, [eax + SOCKET.NextPtr] |
156 | or eax, eax |
156 | or eax, eax |
157 | jz .dump_ |
157 | jz .dump_ |
158 | 158 | ||
159 | cmp [eax + SOCKET.Domain], AF_INET4 |
159 | cmp [eax + SOCKET.Domain], AF_INET4 |
160 | jne .next_socket |
160 | jne .next_socket |
161 | 161 | ||
162 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
162 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
163 | jne .next_socket |
163 | jne .next_socket |
164 | 164 | ||
165 | cmp [eax + UDP_SOCKET.LocalPort], dx |
165 | cmp [eax + UDP_SOCKET.LocalPort], dx |
166 | jne .next_socket |
166 | jne .next_socket |
167 | 167 | ||
168 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: socket=%x\n", eax |
168 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: socket=%x\n", eax |
169 | 169 | ||
170 | pusha |
170 | pusha |
171 | mov ecx, socket_mutex |
171 | mov ecx, socket_mutex |
172 | call mutex_unlock |
172 | call mutex_unlock |
173 | popa |
173 | popa |
174 | 174 | ||
175 | ;;; TODO: when packet is processed, check more sockets! |
175 | ;;; TODO: when packet is processed, check more sockets! |
176 | 176 | ||
177 | ; cmp [eax + IP_SOCKET.RemoteIP], 0xffffffff |
177 | ; cmp [eax + IP_SOCKET.RemoteIP], 0xffffffff |
178 | ; je @f |
178 | ; je @f |
179 | ; cmp [eax + IP_SOCKET.RemoteIP], edi |
179 | ; cmp [eax + IP_SOCKET.RemoteIP], edi |
180 | ; jne .next_socket |
180 | ; jne .next_socket |
181 | ; @@: |
181 | ; @@: |
182 | ; |
182 | ; |
183 | ; FIXME: UDP should check remote IP, but not under all circumstances! |
183 | ; FIXME: UDP should check remote IP, but not under all circumstances! |
184 | 184 | ||
185 | cmp [eax + UDP_SOCKET.RemotePort], 0 |
185 | cmp [eax + UDP_SOCKET.RemotePort], 0 |
186 | je .updateport |
186 | je .updateport |
187 | 187 | ||
188 | cmp [eax + UDP_SOCKET.RemotePort], cx |
188 | cmp [eax + UDP_SOCKET.RemotePort], cx |
189 | jne .dump |
189 | jne .dump |
190 | 190 | ||
191 | pusha |
191 | pusha |
192 | lea ecx, [eax + SOCKET.mutex] |
192 | lea ecx, [eax + SOCKET.mutex] |
193 | call mutex_lock |
193 | call mutex_lock |
194 | popa |
194 | popa |
195 | 195 | ||
196 | .updatesock: |
196 | .updatesock: |
197 | call NET_ptr_to_num4 |
197 | call NET_ptr_to_num4 |
198 | inc [UDP_PACKETS_RX + edi] |
198 | inc [UDP_PACKETS_RX + edi] |
199 | 199 | ||
200 | movzx ecx, [esi + UDP_header.Length] |
200 | movzx ecx, [esi + UDP_header.Length] |
201 | sub ecx, sizeof.UDP_header |
201 | sub ecx, sizeof.UDP_header |
202 | add esi, sizeof.UDP_header |
202 | add esi, sizeof.UDP_header |
203 | 203 | ||
204 | jmp SOCKET_input |
204 | jmp SOCKET_input |
205 | 205 | ||
206 | .updateport: |
206 | .updateport: |
207 | pusha |
207 | pusha |
208 | lea ecx, [eax + SOCKET.mutex] |
208 | lea ecx, [eax + SOCKET.mutex] |
209 | call mutex_lock |
209 | call mutex_lock |
210 | popa |
210 | popa |
211 | 211 | ||
212 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: new remote port=%x\n", cx ; FIXME: find a way to print big endian values with debugf |
212 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: new remote port=%x\n", cx ; FIXME: find a way to print big endian values with debugf |
213 | mov [eax + UDP_SOCKET.RemotePort], cx |
213 | mov [eax + UDP_SOCKET.RemotePort], cx |
214 | jmp .updatesock |
214 | jmp .updatesock |
215 | 215 | ||
216 | .dump_: |
216 | .dump_: |
217 | 217 | ||
218 | pusha |
218 | pusha |
219 | mov ecx, socket_mutex |
219 | mov ecx, socket_mutex |
220 | call mutex_unlock |
220 | call mutex_unlock |
221 | popa |
221 | popa |
222 | 222 | ||
223 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: no socket found\n" |
223 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: no socket found\n" |
224 | 224 | ||
225 | jmp .dump |
225 | jmp .dump |
226 | 226 | ||
227 | .checksum_mismatch: |
227 | .checksum_mismatch: |
228 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: checksum mismatch\n" |
228 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: checksum mismatch\n" |
229 | 229 | ||
230 | .dump: |
230 | .dump: |
231 | call NET_packet_free |
231 | call NET_packet_free |
232 | add esp, 4 ; pop (balance stack) |
232 | add esp, 4 ; pop (balance stack) |
233 | DEBUGF DEBUG_NETWORK_VERBOSE,"UDP_input: dumping\n" |
233 | DEBUGF DEBUG_NETWORK_VERBOSE,"UDP_input: dumping\n" |
234 | 234 | ||
235 | ret |
235 | ret |
236 | 236 | ||
237 | 237 | ||
238 | 238 | ||
239 | 239 | ||
240 | ;----------------------------------------------------------------- |
240 | ;----------------------------------------------------------------- |
241 | ; |
241 | ; |
242 | ; UDP_output |
242 | ; UDP_output |
243 | ; |
243 | ; |
244 | ; IN: eax = socket pointer |
244 | ; IN: eax = socket pointer |
245 | ; ecx = number of bytes to send |
245 | ; ecx = number of bytes to send |
246 | ; esi = pointer to data |
246 | ; esi = pointer to data |
247 | ; |
247 | ; |
248 | ;----------------------------------------------------------------- |
248 | ;----------------------------------------------------------------- |
249 | 249 | ||
250 | align 4 |
250 | align 4 |
251 | UDP_output: |
251 | UDP_output: |
252 | 252 | ||
253 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_output: socket=%x bytes=%u data_ptr=%x\n", eax, ecx, esi |
253 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_output: socket=%x bytes=%u data_ptr=%x\n", eax, ecx, esi |
254 | 254 | ||
255 | mov dx, [eax + UDP_SOCKET.RemotePort] |
255 | mov dx, [eax + UDP_SOCKET.RemotePort] |
256 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_output: remote port=%x, ", dx ; FIXME: find a way to print big endian values with debugf |
256 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_output: remote port=%x, ", dx ; FIXME: find a way to print big endian values with debugf |
257 | rol edx, 16 |
257 | rol edx, 16 |
258 | mov dx, [eax + UDP_SOCKET.LocalPort] |
258 | mov dx, [eax + UDP_SOCKET.LocalPort] |
259 | DEBUGF DEBUG_NETWORK_VERBOSE, "local port=%x\n", dx |
259 | DEBUGF DEBUG_NETWORK_VERBOSE, "local port=%x\n", dx |
260 | 260 | ||
261 | sub esp, 8 ; Data ptr and data size will be placed here |
261 | sub esp, 8 ; Data ptr and data size will be placed here |
262 | push edx esi |
262 | push edx esi |
263 | mov ebx, [eax + SOCKET.device] |
- | |
264 | mov edx, [eax + IP_SOCKET.LocalIP] |
263 | mov edx, [eax + IP_SOCKET.LocalIP] |
265 | mov eax, [eax + IP_SOCKET.RemoteIP] |
264 | mov eax, [eax + IP_SOCKET.RemoteIP] |
266 | mov di, IP_PROTO_UDP shl 8 + 128 |
265 | mov di, IP_PROTO_UDP shl 8 + 128 |
267 | add ecx, sizeof.UDP_header |
266 | add ecx, sizeof.UDP_header |
268 | call IPv4_output |
267 | call IPv4_output |
269 | jz .fail |
268 | jz .fail |
270 | mov [esp + 8], eax ; pointer to buffer start |
269 | mov [esp + 8], eax ; pointer to buffer start |
271 | mov [esp + 8 + 4], edx ; buffer size |
270 | mov [esp + 8 + 4], edx ; buffer size |
272 | 271 | ||
273 | mov [edi + UDP_header.Length], cx |
272 | mov [edi + UDP_header.Length], cx |
274 | rol [edi + UDP_header.Length], 8 |
273 | rol [edi + UDP_header.Length], 8 |
275 | 274 | ||
276 | pop esi |
275 | pop esi |
277 | push edi ecx |
276 | push edi ecx |
278 | sub ecx, sizeof.UDP_header |
277 | sub ecx, sizeof.UDP_header |
279 | add edi, sizeof.UDP_header |
278 | add edi, sizeof.UDP_header |
280 | shr ecx, 2 |
279 | shr ecx, 2 |
281 | rep movsd |
280 | rep movsd |
282 | mov ecx, [esp] |
281 | mov ecx, [esp] |
283 | and ecx, 3 |
282 | and ecx, 3 |
284 | rep movsb |
283 | rep movsb |
285 | pop ecx edi |
284 | pop ecx edi |
286 | 285 | ||
287 | pop dword [edi + UDP_header.SourcePort] |
286 | pop dword [edi + UDP_header.SourcePort] |
288 | 287 | ||
289 | ; Checksum |
288 | ; Checksum |
290 | mov esi, edi |
289 | mov esi, edi |
291 | mov [edi + UDP_header.Checksum], 0 |
290 | mov [edi + UDP_header.Checksum], 0 |
292 | UDP_checksum (edi-4), (edi-8) ; FIXME: IPv4 packet could have options.. |
291 | UDP_checksum (edi-4), (edi-8) ; FIXME: IPv4 packet could have options.. |
293 | 292 | ||
294 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_output: sending with device %x\n", ebx |
293 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_output: sending with device %x\n", ebx |
295 | call [ebx + NET_DEVICE.transmit] |
294 | call [ebx + NET_DEVICE.transmit] |
296 | test eax, eax |
295 | test eax, eax |
297 | jnz @f |
296 | jnz @f |
298 | call NET_ptr_to_num4 |
297 | call NET_ptr_to_num4 |
299 | inc [UDP_PACKETS_TX + edi] |
298 | inc [UDP_PACKETS_TX + edi] |
300 | @@: |
299 | @@: |
301 | 300 | ||
302 | ret |
301 | ret |
303 | 302 | ||
304 | .fail: |
303 | .fail: |
305 | DEBUGF DEBUG_NETWORK_ERROR, "UDP_output: failed\n" |
304 | DEBUGF DEBUG_NETWORK_ERROR, "UDP_output: failed\n" |
306 | add esp, 4+4+8 |
305 | add esp, 4+4+8 |
307 | or eax, -1 |
306 | or eax, -1 |
308 | ret |
307 | ret |
309 | 308 | ||
310 | 309 | ||
311 | 310 | ||
312 | 311 | ||
313 | ;----------------------------------------------------------------- |
312 | ;----------------------------------------------------------------- |
314 | ; |
313 | ; |
315 | ; UDP_connect |
314 | ; UDP_connect |
316 | ; |
315 | ; |
317 | ; IN: eax = socket pointer |
316 | ; IN: eax = socket pointer |
318 | ; OUT: eax = 0 ok / -1 error |
317 | ; OUT: eax = 0 ok / -1 error |
319 | ; ebx = error code |
318 | ; ebx = error code |
320 | ; |
319 | ; |
321 | ;------------------------- |
320 | ;------------------------- |
322 | align 4 |
321 | align 4 |
323 | UDP_connect: |
322 | UDP_connect: |
324 | 323 | ||
325 | test [eax + SOCKET.state], SS_ISCONNECTED |
324 | test [eax + SOCKET.state], SS_ISCONNECTED |
326 | jz @f |
325 | jz @f |
327 | call UDP_disconnect |
326 | call UDP_disconnect |
328 | @@: |
327 | @@: |
329 | 328 | ||
330 | push eax edx |
329 | push eax edx |
331 | lea ecx, [eax + SOCKET.mutex] |
330 | lea ecx, [eax + SOCKET.mutex] |
332 | call mutex_lock |
331 | call mutex_lock |
333 | pop edx eax |
332 | pop edx eax |
334 | 333 | ||
335 | ; Fill in local IP |
334 | ; Fill in local IP |
336 | cmp [eax + IP_SOCKET.LocalIP], 0 |
335 | cmp [eax + IP_SOCKET.LocalIP], 0 |
337 | jne @f |
336 | jne @f |
338 | push [IP_LIST + 4] ; FIXME: use correct local IP |
337 | push [IP_LIST + 4] ; FIXME: use correct local IP |
339 | pop [eax + IP_SOCKET.LocalIP] |
338 | pop [eax + IP_SOCKET.LocalIP] |
340 | 339 | ||
341 | ; Fill in remote port and IP, overwriting eventually previous values |
340 | ; Fill in remote port and IP, overwriting eventually previous values |
342 | pushw [edx + 2] |
341 | pushw [edx + 2] |
343 | pop [eax + UDP_SOCKET.RemotePort] |
342 | pop [eax + UDP_SOCKET.RemotePort] |
344 | 343 | ||
345 | pushd [edx + 4] |
344 | pushd [edx + 4] |
346 | pop [eax + IP_SOCKET.RemoteIP] |
345 | pop [eax + IP_SOCKET.RemoteIP] |
347 | 346 | ||
348 | ; Find a local port, if user didnt define one |
347 | ; Find a local port, if user didnt define one |
349 | cmp [eax + UDP_SOCKET.LocalPort], 0 |
348 | cmp [eax + UDP_SOCKET.LocalPort], 0 |
350 | jne @f |
349 | jne @f |
351 | call SOCKET_find_port |
350 | call SOCKET_find_port |
352 | @@: |
351 | @@: |
353 | 352 | ||
354 | push eax |
353 | push eax |
355 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue |
354 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue |
356 | pop eax |
355 | pop eax |
357 | 356 | ||
358 | push eax |
357 | push eax |
359 | lea ecx, [eax + SOCKET.mutex] |
358 | lea ecx, [eax + SOCKET.mutex] |
360 | call mutex_unlock |
359 | call mutex_unlock |
361 | pop eax |
360 | pop eax |
362 | 361 | ||
363 | call SOCKET_is_connected |
362 | call SOCKET_is_connected |
364 | 363 | ||
365 | xor eax, eax |
364 | xor eax, eax |
366 | ret |
365 | ret |
367 | 366 | ||
368 | 367 | ||
369 | ;----------------------------------------------------------------- |
368 | ;----------------------------------------------------------------- |
370 | ; |
369 | ; |
371 | ; UDP_disconnect |
370 | ; UDP_disconnect |
372 | ; |
371 | ; |
373 | ; IN: eax = socket pointer |
372 | ; IN: eax = socket pointer |
374 | ; OUT: eax = socket pointer |
373 | ; OUT: eax = socket pointer |
375 | ; |
374 | ; |
376 | ;------------------------- |
375 | ;------------------------- |
377 | align 4 |
376 | align 4 |
378 | UDP_disconnect: |
377 | UDP_disconnect: |
379 | 378 | ||
380 | ; TODO: remove the pending received data |
379 | ; TODO: remove the pending received data |
381 | 380 | ||
382 | call SOCKET_is_disconnected |
381 | call SOCKET_is_disconnected |
383 | 382 | ||
384 | ret |
383 | ret |
385 | 384 | ||
386 | 385 | ||
387 | 386 | ||
388 | 387 | ||
389 | 388 | ||
390 | ;--------------------------------------------------------------------------- |
389 | ;--------------------------------------------------------------------------- |
391 | ; |
390 | ; |
392 | ; UDP_API |
391 | ; UDP_API |
393 | ; |
392 | ; |
394 | ; This function is called by system function 75 |
393 | ; This function is called by system function 75 |
395 | ; |
394 | ; |
396 | ; IN: subfunction number in bl |
395 | ; IN: subfunction number in bl |
397 | ; device number in bh |
396 | ; device number in bh |
398 | ; ecx, edx, .. depends on subfunction |
397 | ; ecx, edx, .. depends on subfunction |
399 | ; |
398 | ; |
400 | ; OUT: |
399 | ; OUT: |
401 | ; |
400 | ; |
402 | ;--------------------------------------------------------------------------- |
401 | ;--------------------------------------------------------------------------- |
403 | 402 | ||
404 | align 4 |
403 | align 4 |
405 | UDP_api: |
404 | UDP_api: |
406 | 405 | ||
407 | movzx eax, bh |
406 | movzx eax, bh |
408 | shl eax, 2 |
407 | shl eax, 2 |
409 | 408 | ||
410 | test bl, bl |
409 | test bl, bl |
411 | jz .packets_tx ; 0 |
410 | jz .packets_tx ; 0 |
412 | dec bl |
411 | dec bl |
413 | jz .packets_rx ; 1 |
412 | jz .packets_rx ; 1 |
414 | 413 | ||
415 | .error: |
414 | .error: |
416 | mov eax, -1 |
415 | mov eax, -1 |
417 | ret |
416 | ret |
418 | 417 | ||
419 | .packets_tx: |
418 | .packets_tx: |
420 | mov eax, [UDP_PACKETS_TX + eax] |
419 | mov eax, [UDP_PACKETS_TX + eax] |
421 | ret |
420 | ret |
422 | 421 | ||
423 | .packets_rx: |
422 | .packets_rx: |
424 | mov eax, [UDP_PACKETS_RX + eax] |
423 | mov eax, [UDP_PACKETS_RX + eax] |
425 | ret |
424 | ret |