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Rev | Author | Line No. | Line |
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1159 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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1763 | hidnplayr | 3 | ;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;; |
1159 | hidnplayr | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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1529 | hidnplayr | 6 | ;; Written by hidnplayr@kolibrios.org, ;; |
7 | ;; and Clevermouse. ;; |
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1159 | hidnplayr | 8 | ;; ;; |
1529 | hidnplayr | 9 | ;; Based on code by mike.dld ;; |
1159 | hidnplayr | 10 | ;; ;; |
1529 | hidnplayr | 11 | ;; GNU GENERAL PUBLIC LICENSE ;; |
12 | ;; Version 2, June 1991 ;; |
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13 | ;; ;; |
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1159 | hidnplayr | 14 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
15 | |||
1206 | hidnplayr | 16 | $Revision: 2305 $ |
1159 | hidnplayr | 17 | |
1773 | hidnplayr | 18 | |
2305 | hidnplayr | 19 | struct SOCKET |
1249 | hidnplayr | 20 | |
2305 | hidnplayr | 21 | NextPtr dd ? ; pointer to next socket in list |
22 | PrevPtr dd ? ; pointer to previous socket in list |
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23 | Number dd ? ; socket number |
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1249 | hidnplayr | 24 | |
2305 | hidnplayr | 25 | lock dd ? ; lock mutex |
1249 | hidnplayr | 26 | |
2305 | hidnplayr | 27 | PID dd ? ; application process id |
28 | Domain dd ? ; INET/UNIX/.. |
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29 | Type dd ? ; RAW/STREAM/DGRAP |
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30 | Protocol dd ? ; ICMP/IPv4/ARP/TCP/UDP |
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31 | errorcode dd ? |
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1249 | hidnplayr | 32 | |
2305 | hidnplayr | 33 | options dd ? |
34 | state dd ? |
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35 | backlog dw ? ; how many incomming connections that can be queued |
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1249 | hidnplayr | 36 | |
2305 | hidnplayr | 37 | snd_proc dd ? |
38 | rcv_proc dd ? |
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1536 | hidnplayr | 39 | |
2305 | hidnplayr | 40 | ends |
1249 | hidnplayr | 41 | |
2305 | hidnplayr | 42 | struct IP_SOCKET SOCKET |
1254 | hidnplayr | 43 | |
2305 | hidnplayr | 44 | LocalIP rd 4 |
45 | RemoteIP rd 4 |
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1318 | hidnplayr | 46 | |
2305 | hidnplayr | 47 | ends |
1159 | hidnplayr | 48 | |
2305 | hidnplayr | 49 | struct TCP_SOCKET IP_SOCKET |
1249 | hidnplayr | 50 | |
2305 | hidnplayr | 51 | LocalPort dw ? |
52 | RemotePort dw ? |
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1514 | hidnplayr | 53 | |
2305 | hidnplayr | 54 | t_state dd ? ; TCB state |
55 | t_rxtshift dd ? |
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56 | t_rxtcur dd ? |
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57 | t_dupacks dd ? |
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58 | t_maxseg dd ? |
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59 | t_force dd ? |
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60 | t_flags dd ? |
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1514 | hidnplayr | 61 | |
62 | ;--------------- |
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63 | ; RFC783 page 21 |
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64 | |||
65 | ; send sequence |
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2305 | hidnplayr | 66 | SND_UNA dd ? ; sequence number of unack'ed sent Packets |
67 | SND_NXT dd ? ; next send sequence number to use |
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68 | SND_UP dd ? |
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69 | SND_WL1 dd ? ; window minus one |
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70 | SND_WL2 dd ? ; |
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71 | ISS dd ? ; initial send sequence number |
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72 | SND_WND dd ? ; send window |
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1514 | hidnplayr | 73 | |
74 | ; receive sequence |
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2305 | hidnplayr | 75 | RCV_WND dw ? ; receive window |
76 | RCV_NXT dd ? ; next receive sequence number to use |
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77 | RCV_UP dd ? |
||
78 | IRS dd ? ; initial receive sequence number |
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1514 | hidnplayr | 79 | |
80 | ;--------------------- |
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81 | ; Additional variables |
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82 | |||
83 | ; receive variables |
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2305 | hidnplayr | 84 | RCV_ADV dd ? |
1514 | hidnplayr | 85 | |
86 | ; retransmit variables |
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2305 | hidnplayr | 87 | SND_MAX dd ? |
1514 | hidnplayr | 88 | |
89 | ; congestion control |
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2305 | hidnplayr | 90 | SND_CWND dd ? |
91 | SND_SSTHRESH dd ? |
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1514 | hidnplayr | 92 | |
93 | ;---------------------- |
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94 | ; Transmit timing stuff |
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2305 | hidnplayr | 95 | t_idle dd ? |
96 | t_rtt dd ? |
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97 | t_rtseq dd ? |
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98 | t_srtt dd ? |
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99 | t_rttvar dd ? |
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100 | t_rttmin dd ? |
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101 | max_sndwnd dd ? |
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1514 | hidnplayr | 102 | |
103 | ;----------------- |
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104 | ; Out-of-band data |
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2305 | hidnplayr | 105 | t_oobflags dd ? |
106 | t_iobc dd ? |
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107 | t_softerror dd ? |
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1514 | hidnplayr | 108 | |
109 | |||
110 | ;--------- |
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111 | ; RFC 1323 |
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2305 | hidnplayr | 112 | SND_SCALE db ? ; Scale factor |
113 | RCV_SCALE db ? |
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114 | request_r_scale db ? |
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115 | requested_s_scale dd ? |
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1514 | hidnplayr | 116 | |
2305 | hidnplayr | 117 | ts_recent dd ? |
118 | ts_recent_age dd ? |
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119 | last_ack_sent dd ? |
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1514 | hidnplayr | 120 | |
1519 | hidnplayr | 121 | |
122 | ;------- |
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123 | ; Timers |
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2305 | hidnplayr | 124 | timer_retransmission dw ? ; rexmt |
125 | timer_persist dw ? |
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126 | timer_keepalive dw ? ; keepalive/syn timeout |
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127 | timer_timed_wait dw ? ; also used as 2msl timer |
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1519 | hidnplayr | 128 | |
2305 | hidnplayr | 129 | ends |
1249 | hidnplayr | 130 | |
2305 | hidnplayr | 131 | struct UDP_SOCKET IP_SOCKET |
1249 | hidnplayr | 132 | |
2305 | hidnplayr | 133 | LocalPort dw ? |
134 | RemotePort dw ? |
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135 | firstpacket db ? |
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1249 | hidnplayr | 136 | |
2305 | hidnplayr | 137 | ends |
1249 | hidnplayr | 138 | |
139 | |||
2305 | hidnplayr | 140 | struct ICMP_SOCKET |
1249 | hidnplayr | 141 | |
2305 | hidnplayr | 142 | Identifier dw ? |
1514 | hidnplayr | 143 | |
2305 | hidnplayr | 144 | ends |
1514 | hidnplayr | 145 | |
146 | |||
2305 | hidnplayr | 147 | struct RING_BUFFER |
148 | start_ptr dd ? ; Pointer to start of buffer |
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149 | end_ptr dd ? ; pointer to end of buffer |
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150 | read_ptr dd ? ; Read pointer |
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151 | write_ptr dd ? ; Write pointer |
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152 | size dd ? ; Number of bytes buffered |
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153 | ends |
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1514 | hidnplayr | 154 | |
2305 | hidnplayr | 155 | struct STREAM_SOCKET TCP_SOCKET |
1529 | hidnplayr | 156 | |
2305 | hidnplayr | 157 | rcv rd sizeof.RING_BUFFER/4 |
158 | snd rd sizeof.RING_BUFFER/4 |
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1529 | hidnplayr | 159 | |
2305 | hidnplayr | 160 | ends |
1529 | hidnplayr | 161 | |
2305 | hidnplayr | 162 | struct socket_queue_entry |
1529 | hidnplayr | 163 | |
2305 | hidnplayr | 164 | data_ptr dd ? |
165 | buf_ptr dd ? |
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166 | data_size dd ? |
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1529 | hidnplayr | 167 | |
1274 | hidnplayr | 168 | ends |
169 | |||
1514 | hidnplayr | 170 | |
1249 | hidnplayr | 171 | SOCKETBUFFSIZE equ 4096 ; in bytes |
1514 | hidnplayr | 172 | |
1249 | hidnplayr | 173 | SOCKET_QUEUE_SIZE equ 10 ; maximum number ofincoming packets queued for 1 socket |
1514 | hidnplayr | 174 | ; the incoming packet queue for sockets is placed in the socket struct itself, at this location from start |
2305 | hidnplayr | 175 | SOCKET_QUEUE_LOCATION equ (SOCKETBUFFSIZE - SOCKET_QUEUE_SIZE*sizeof.socket_queue_entry - sizeof.queue) |
1249 | hidnplayr | 176 | |
1159 | hidnplayr | 177 | uglobal |
1514 | hidnplayr | 178 | net_sockets rd 4 |
1543 | hidnplayr | 179 | last_socket_num dd ? |
1159 | hidnplayr | 180 | last_UDP_port dw ? ; These values give the number of the last used ephemeral port |
181 | last_TCP_port dw ? ; |
||
182 | endg |
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183 | |||
184 | |||
1257 | hidnplayr | 185 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 186 | ; |
187 | ; SOCKET_init |
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188 | ; |
||
1257 | hidnplayr | 189 | ;----------------------------------------------------------------- |
1529 | hidnplayr | 190 | macro SOCKET_init { |
1159 | hidnplayr | 191 | |
1514 | hidnplayr | 192 | xor eax, eax |
193 | mov edi, net_sockets |
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1543 | hidnplayr | 194 | mov ecx, 5 |
1514 | hidnplayr | 195 | rep stosd |
1159 | hidnplayr | 196 | |
1529 | hidnplayr | 197 | @@: |
198 | pseudo_random eax |
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199 | cmp ax, MIN_EPHEMERAL_PORT |
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2300 | hidnplayr | 200 | jb @r |
1529 | hidnplayr | 201 | cmp ax, MAX_EPHEMERAL_PORT |
2300 | hidnplayr | 202 | ja @r |
1529 | hidnplayr | 203 | mov [last_UDP_port], ax |
204 | |||
205 | @@: |
||
206 | pseudo_random eax |
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207 | cmp ax, MIN_EPHEMERAL_PORT |
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2300 | hidnplayr | 208 | jb @r |
1529 | hidnplayr | 209 | cmp ax, MAX_EPHEMERAL_PORT |
2300 | hidnplayr | 210 | ja @r |
1529 | hidnplayr | 211 | mov [last_TCP_port], ax |
212 | |||
213 | } |
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214 | |||
215 | |||
1257 | hidnplayr | 216 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 217 | ; |
218 | ; Socket API (function 74) |
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219 | ; |
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1257 | hidnplayr | 220 | ;----------------------------------------------------------------- |
2301 | hidnplayr | 221 | align 16 |
222 | sock_sysfn_table: |
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223 | dd SOCKET_open ; 0 |
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224 | dd SOCKET_close ; 1 |
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225 | dd SOCKET_bind ; 2 |
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226 | dd SOCKET_listen ; 3 |
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227 | dd SOCKET_connect ; 4 |
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228 | dd SOCKET_accept ; 5 |
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229 | dd SOCKET_send ; 6 |
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230 | dd SOCKET_receive ; 7 |
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231 | dd SOCKET_set_opt ; 8 |
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232 | dd SOCKET_get_opt ; 9 |
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233 | |||
234 | SOCKET_SYSFUNCS = ($ - sock_sysfn_table)/4 |
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235 | |||
236 | |||
1159 | hidnplayr | 237 | align 4 |
238 | sys_socket: |
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2301 | hidnplayr | 239 | cmp ebx, SOCKET_SYSFUNCS-1 |
2300 | hidnplayr | 240 | ja @f |
1542 | hidnplayr | 241 | jmp dword [sock_sysfn_table + 4*ebx] |
1529 | hidnplayr | 242 | @@: |
243 | cmp ebx, 255 |
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244 | jz SOCKET_debug |
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1159 | hidnplayr | 245 | |
1529 | hidnplayr | 246 | s_error: |
247 | DEBUGF 1,"socket error\n" |
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248 | mov dword [esp+32], -1 |
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249 | |||
250 | ret |
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251 | |||
1159 | hidnplayr | 252 | |
2301 | hidnplayr | 253 | |
1257 | hidnplayr | 254 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 255 | ; |
256 | ; SOCKET_open |
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257 | ; |
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258 | ; IN: domain in ecx |
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259 | ; type in edx |
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1196 | hidnplayr | 260 | ; protocol in esi |
1159 | hidnplayr | 261 | ; OUT: eax is socket num, -1 on error |
262 | ; |
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1257 | hidnplayr | 263 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 264 | align 4 |
1514 | hidnplayr | 265 | SOCKET_open: |
1159 | hidnplayr | 266 | |
1536 | hidnplayr | 267 | DEBUGF 1,"SOCKET_open: domain: %u, type: %u protocol: %x\n", ecx, edx, esi |
1159 | hidnplayr | 268 | |
1514 | hidnplayr | 269 | call SOCKET_alloc |
1185 | hidnplayr | 270 | jz s_error |
1159 | hidnplayr | 271 | |
1542 | hidnplayr | 272 | mov [esp+32], edi ; return socketnumber |
273 | |||
1514 | hidnplayr | 274 | mov [eax + SOCKET.Domain], ecx |
275 | mov [eax + SOCKET.Type], edx |
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276 | mov [eax + SOCKET.Protocol], esi |
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1159 | hidnplayr | 277 | |
1529 | hidnplayr | 278 | cmp ecx, AF_INET4 |
1536 | hidnplayr | 279 | jne .no_inet4 |
1529 | hidnplayr | 280 | |
1542 | hidnplayr | 281 | cmp edx, SOCK_DGRAM |
1536 | hidnplayr | 282 | je .udp |
283 | |||
1542 | hidnplayr | 284 | cmp edx, SOCK_STREAM |
1536 | hidnplayr | 285 | je .tcp |
1529 | hidnplayr | 286 | |
1541 | hidnplayr | 287 | cmp edx, SOCK_RAW |
288 | je .raw |
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289 | |||
1536 | hidnplayr | 290 | .no_inet4: |
291 | ret |
||
292 | |||
1542 | hidnplayr | 293 | align 4 |
294 | .raw: |
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1543 | hidnplayr | 295 | test esi, esi ; IP_PROTO_IP |
296 | jz .ip |
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1529 | hidnplayr | 297 | |
1542 | hidnplayr | 298 | cmp esi, IP_PROTO_ICMP |
299 | je .icmp |
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1529 | hidnplayr | 300 | |
1542 | hidnplayr | 301 | cmp esi, IP_PROTO_UDP |
302 | je .udp |
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1533 | hidnplayr | 303 | |
1542 | hidnplayr | 304 | cmp esi, IP_PROTO_TCP |
305 | je .tcp |
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1536 | hidnplayr | 306 | |
1159 | hidnplayr | 307 | ret |
308 | |||
1542 | hidnplayr | 309 | align 4 |
1536 | hidnplayr | 310 | .udp: |
1542 | hidnplayr | 311 | mov [eax + SOCKET.Protocol], IP_PROTO_UDP |
1536 | hidnplayr | 312 | mov [eax + SOCKET.snd_proc], SOCKET_send_udp |
1541 | hidnplayr | 313 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
1529 | hidnplayr | 314 | ret |
315 | |||
1542 | hidnplayr | 316 | align 4 |
317 | .tcp: |
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318 | mov [eax + SOCKET.Protocol], IP_PROTO_TCP |
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1543 | hidnplayr | 319 | mov [eax + SOCKET.snd_proc], SOCKET_send_tcp |
320 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_tcp |
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1838 | hidnplayr | 321 | |
322 | |||
323 | mov [eax + TCP_SOCKET.t_maxseg], 1480 ;;;;; FIXME |
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1543 | hidnplayr | 324 | ret |
1529 | hidnplayr | 325 | |
326 | |||
1543 | hidnplayr | 327 | align 4 |
328 | .ip: |
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329 | mov [eax + SOCKET.snd_proc], SOCKET_send_ip |
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330 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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1541 | hidnplayr | 331 | ret |
332 | |||
1542 | hidnplayr | 333 | |
334 | align 4 |
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1541 | hidnplayr | 335 | .icmp: |
336 | mov [eax + SOCKET.snd_proc], SOCKET_send_icmp |
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337 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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338 | ret |
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339 | |||
340 | |||
341 | |||
1257 | hidnplayr | 342 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 343 | ; |
344 | ; SOCKET_bind |
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345 | ; |
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346 | ; IN: socket number in ecx |
||
347 | ; pointer to sockaddr struct in edx |
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348 | ; length of that struct in esi |
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349 | ; OUT: 0 on success |
||
350 | ; |
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1257 | hidnplayr | 351 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 352 | align 4 |
1514 | hidnplayr | 353 | SOCKET_bind: |
1159 | hidnplayr | 354 | |
1514 | hidnplayr | 355 | DEBUGF 1,"socket_bind: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi |
1159 | hidnplayr | 356 | |
1514 | hidnplayr | 357 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 358 | jz s_error |
1159 | hidnplayr | 359 | |
360 | cmp esi, 2 |
||
2300 | hidnplayr | 361 | jb s_error |
1159 | hidnplayr | 362 | |
363 | cmp word [edx], AF_INET4 |
||
1249 | hidnplayr | 364 | je .af_inet4 |
1159 | hidnplayr | 365 | |
1249 | hidnplayr | 366 | cmp word [edx], AF_UNIX |
367 | je .af_unix |
||
368 | |||
369 | jmp s_error |
||
370 | |||
371 | .af_unix: |
||
372 | ; TODO: write code here |
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373 | |||
1514 | hidnplayr | 374 | mov dword [esp+32], 0 |
1249 | hidnplayr | 375 | ret |
376 | |||
1159 | hidnplayr | 377 | .af_inet4: |
378 | |||
1514 | hidnplayr | 379 | DEBUGF 1,"af_inet4\n" |
380 | |||
1159 | hidnplayr | 381 | cmp esi, 6 |
2300 | hidnplayr | 382 | jb s_error |
1159 | hidnplayr | 383 | |
2301 | hidnplayr | 384 | pushw [edx + 2] |
385 | pop [eax + UDP_SOCKET.LocalPort] |
||
1159 | hidnplayr | 386 | |
2301 | hidnplayr | 387 | pushd [edx + 4] |
1543 | hidnplayr | 388 | pop [eax + IP_SOCKET.LocalIP] |
1159 | hidnplayr | 389 | |
390 | DEBUGF 1,"local ip: %u.%u.%u.%u\n",\ |
||
1514 | hidnplayr | 391 | [eax + IP_SOCKET.LocalIP + 0]:1,[eax + IP_SOCKET.LocalIP + 1]:1,\ |
392 | [eax + IP_SOCKET.LocalIP + 2]:1,[eax + IP_SOCKET.LocalIP + 3]:1 |
||
1159 | hidnplayr | 393 | |
1514 | hidnplayr | 394 | mov dword [esp+32], 0 |
1159 | hidnplayr | 395 | ret |
396 | |||
397 | |||
398 | |||
399 | |||
1257 | hidnplayr | 400 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 401 | ; |
402 | ; SOCKET_connect |
||
403 | ; |
||
404 | ; IN: socket number in ecx |
||
405 | ; pointer to sockaddr struct in edx |
||
406 | ; length of that struct in esi |
||
407 | ; OUT: 0 on success |
||
408 | ; |
||
1257 | hidnplayr | 409 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 410 | align 4 |
1514 | hidnplayr | 411 | SOCKET_connect: |
1159 | hidnplayr | 412 | |
1541 | hidnplayr | 413 | DEBUGF 1,"SOCKET_connect: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi |
1159 | hidnplayr | 414 | |
1514 | hidnplayr | 415 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 416 | jz s_error |
1159 | hidnplayr | 417 | |
1254 | hidnplayr | 418 | cmp esi, 8 |
2300 | hidnplayr | 419 | jb s_error |
1159 | hidnplayr | 420 | |
421 | cmp word [edx], AF_INET4 |
||
422 | je .af_inet4 |
||
423 | |||
1185 | hidnplayr | 424 | jmp s_error |
1159 | hidnplayr | 425 | |
426 | .af_inet4: |
||
1543 | hidnplayr | 427 | cmp [eax + IP_SOCKET.LocalIP], 0 |
428 | jne @f |
||
429 | push [IP_LIST] |
||
430 | pop [eax + IP_SOCKET.LocalIP] |
||
431 | @@: |
||
1159 | hidnplayr | 432 | |
1542 | hidnplayr | 433 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
1159 | hidnplayr | 434 | je .udp |
435 | |||
1542 | hidnplayr | 436 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
1206 | hidnplayr | 437 | je .tcp |
1159 | hidnplayr | 438 | |
1542 | hidnplayr | 439 | cmp [eax + SOCKET.Protocol], IP_PROTO_IP |
440 | je .ip |
||
1541 | hidnplayr | 441 | |
1542 | hidnplayr | 442 | cmp [eax + SOCKET.Protocol], IP_PROTO_ICMP |
443 | je .ip |
||
444 | |||
1185 | hidnplayr | 445 | jmp s_error |
1159 | hidnplayr | 446 | |
1542 | hidnplayr | 447 | align 4 |
1254 | hidnplayr | 448 | .udp: |
1543 | hidnplayr | 449 | lea ebx, [eax + SOCKET.lock] |
450 | call wait_mutex |
||
451 | |||
2301 | hidnplayr | 452 | pushw [edx + 2] |
1543 | hidnplayr | 453 | pop [eax + UDP_SOCKET.RemotePort] |
454 | |||
2301 | hidnplayr | 455 | pushd [edx + 4] |
1543 | hidnplayr | 456 | pop [eax + IP_SOCKET.RemoteIP] |
457 | |||
458 | cmp [eax + UDP_SOCKET.LocalPort], 0 |
||
459 | jne @f |
||
460 | call SOCKET_find_port |
||
461 | @@: |
||
462 | |||
1514 | hidnplayr | 463 | mov [eax + UDP_SOCKET.firstpacket], 0 |
1159 | hidnplayr | 464 | |
1543 | hidnplayr | 465 | push eax |
466 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue |
||
1733 | hidnplayr | 467 | pop eax |
1159 | hidnplayr | 468 | |
1543 | hidnplayr | 469 | mov [eax + SOCKET.lock], 0 |
1514 | hidnplayr | 470 | mov dword [esp+32], 0 |
1159 | hidnplayr | 471 | ret |
472 | |||
1542 | hidnplayr | 473 | align 4 |
1254 | hidnplayr | 474 | .tcp: |
1514 | hidnplayr | 475 | lea ebx, [eax + SOCKET.lock] |
1281 | hidnplayr | 476 | call wait_mutex |
1159 | hidnplayr | 477 | |
2301 | hidnplayr | 478 | pushw [edx + 2] |
1543 | hidnplayr | 479 | pop [eax + TCP_SOCKET.RemotePort] |
1159 | hidnplayr | 480 | |
2301 | hidnplayr | 481 | pushd [edx + 4] |
1543 | hidnplayr | 482 | pop [eax + IP_SOCKET.RemoteIP] |
1159 | hidnplayr | 483 | |
1543 | hidnplayr | 484 | cmp [eax + TCP_SOCKET.LocalPort], 0 |
485 | jne @f |
||
486 | call SOCKET_find_port |
||
487 | @@: |
||
1159 | hidnplayr | 488 | |
1529 | hidnplayr | 489 | mov [eax + TCP_SOCKET.timer_persist], 0 |
1831 | hidnplayr | 490 | mov [eax + TCP_SOCKET.t_state], TCPS_SYN_SENT |
1733 | hidnplayr | 491 | push [TCP_sequence_num] |
1529 | hidnplayr | 492 | add [TCP_sequence_num], 6400 |
1733 | hidnplayr | 493 | pop [eax + TCP_SOCKET.ISS] |
1533 | hidnplayr | 494 | mov [eax + TCP_SOCKET.timer_keepalive], TCP_time_keep_init |
1519 | hidnplayr | 495 | |
1533 | hidnplayr | 496 | TCP_sendseqinit eax |
1529 | hidnplayr | 497 | |
1543 | hidnplayr | 498 | ; mov [ebx + TCP_SOCKET.timer_retransmission], ;; todo: create macro to set retransmission timer |
1533 | hidnplayr | 499 | |
1543 | hidnplayr | 500 | mov ebx, eax |
1159 | hidnplayr | 501 | |
1543 | hidnplayr | 502 | lea eax, [ebx + STREAM_SOCKET.snd] |
503 | call SOCKET_ring_create |
||
504 | |||
505 | lea eax, [ebx + STREAM_SOCKET.rcv] |
||
506 | call SOCKET_ring_create |
||
507 | |||
508 | mov [ebx + SOCKET.lock], 0 |
||
1733 | hidnplayr | 509 | |
510 | mov eax, ebx |
||
511 | call TCP_output |
||
512 | |||
1543 | hidnplayr | 513 | mov dword [esp+32], 0 |
1159 | hidnplayr | 514 | ret |
515 | |||
1542 | hidnplayr | 516 | align 4 |
517 | .ip: |
||
1543 | hidnplayr | 518 | lea ebx, [eax + SOCKET.lock] |
519 | call wait_mutex |
||
520 | |||
2301 | hidnplayr | 521 | pushd [edx + 4] |
522 | pop [eax + IP_SOCKET.RemoteIP] |
||
1159 | hidnplayr | 523 | |
1543 | hidnplayr | 524 | push eax |
525 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue |
||
526 | pop eax |
||
527 | |||
528 | mov [eax + SOCKET.lock], 0 |
||
529 | mov dword [esp+32], 0 |
||
1541 | hidnplayr | 530 | ret |
531 | |||
532 | |||
1257 | hidnplayr | 533 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 534 | ; |
535 | ; SOCKET_listen |
||
536 | ; |
||
537 | ; IN: socket number in ecx |
||
538 | ; backlog in edx |
||
539 | ; OUT: eax is socket num, -1 on error |
||
540 | ; |
||
1257 | hidnplayr | 541 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 542 | align 4 |
1514 | hidnplayr | 543 | SOCKET_listen: |
1159 | hidnplayr | 544 | |
1541 | hidnplayr | 545 | DEBUGF 1,"SOCKET_listen: socknum: %u backlog: %u\n", ecx, edx |
1159 | hidnplayr | 546 | |
1514 | hidnplayr | 547 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 548 | jz s_error |
1159 | hidnplayr | 549 | |
2302 | hidnplayr | 550 | cmp [eax + SOCKET.Domain], AF_INET4 |
1254 | hidnplayr | 551 | jne s_error |
552 | |||
1542 | hidnplayr | 553 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
1254 | hidnplayr | 554 | jne s_error |
555 | |||
1543 | hidnplayr | 556 | cmp [eax + TCP_SOCKET.LocalPort], 0 |
557 | je s_error |
||
1514 | hidnplayr | 558 | |
1543 | hidnplayr | 559 | cmp [eax + IP_SOCKET.LocalIP], 0 |
560 | jne @f |
||
561 | push [IP_LIST] |
||
562 | pop [eax + IP_SOCKET.LocalIP] |
||
563 | @@: |
||
564 | |||
1159 | hidnplayr | 565 | cmp edx, MAX_backlog |
2300 | hidnplayr | 566 | jbe @f |
1514 | hidnplayr | 567 | mov edx, MAX_backlog |
1543 | hidnplayr | 568 | @@: |
1159 | hidnplayr | 569 | |
1543 | hidnplayr | 570 | mov [eax + SOCKET.backlog], dx |
571 | or [eax + SOCKET.options], SO_ACCEPTCON |
||
1831 | hidnplayr | 572 | mov [eax + TCP_SOCKET.t_state], TCPS_LISTEN |
1159 | hidnplayr | 573 | |
1543 | hidnplayr | 574 | push eax |
575 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up sockets queue |
||
576 | pop eax |
||
577 | |||
1159 | hidnplayr | 578 | mov dword [esp+32], 0 |
1514 | hidnplayr | 579 | |
1159 | hidnplayr | 580 | ret |
581 | |||
582 | |||
1257 | hidnplayr | 583 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 584 | ; |
585 | ; SOCKET_accept |
||
586 | ; |
||
587 | ; IN: socket number in ecx |
||
588 | ; addr in edx |
||
589 | ; addrlen in esi |
||
590 | ; OUT: eax is socket num, -1 on error |
||
591 | ; |
||
1257 | hidnplayr | 592 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 593 | align 4 |
1514 | hidnplayr | 594 | SOCKET_accept: |
1159 | hidnplayr | 595 | |
1541 | hidnplayr | 596 | DEBUGF 1,"SOCKET_accept: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi |
1159 | hidnplayr | 597 | |
1514 | hidnplayr | 598 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 599 | jz s_error |
1159 | hidnplayr | 600 | |
1543 | hidnplayr | 601 | test [eax + SOCKET.options], SO_ACCEPTCON |
602 | jz s_error |
||
603 | |||
2302 | hidnplayr | 604 | cmp [eax + SOCKET.Domain], AF_INET4 |
1543 | hidnplayr | 605 | jne s_error |
1249 | hidnplayr | 606 | |
1542 | hidnplayr | 607 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
1543 | hidnplayr | 608 | jne s_error |
1249 | hidnplayr | 609 | |
1543 | hidnplayr | 610 | get_from_queue (eax + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, s_error |
1249 | hidnplayr | 611 | |
1543 | hidnplayr | 612 | mov eax, [esi] |
613 | call SOCKET_ptr_to_num |
||
614 | jz s_error |
||
2303 | hidnplayr | 615 | mov [esp+32], eax |
1159 | hidnplayr | 616 | ret |
1514 | hidnplayr | 617 | |
1159 | hidnplayr | 618 | |
1257 | hidnplayr | 619 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 620 | ; |
621 | ; SOCKET_close |
||
622 | ; |
||
623 | ; IN: socket number in ecx |
||
624 | ; OUT: eax is socket num, -1 on error |
||
625 | ; |
||
1257 | hidnplayr | 626 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 627 | align 4 |
1514 | hidnplayr | 628 | SOCKET_close: |
1159 | hidnplayr | 629 | |
1541 | hidnplayr | 630 | DEBUGF 1,"SOCKET_close: socknum: %u\n", ecx |
1159 | hidnplayr | 631 | |
1514 | hidnplayr | 632 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 633 | jz s_error |
1159 | hidnplayr | 634 | |
1514 | hidnplayr | 635 | cmp [eax + SOCKET.Domain], AF_INET4 |
1249 | hidnplayr | 636 | jne s_error |
1159 | hidnplayr | 637 | |
1542 | hidnplayr | 638 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
1514 | hidnplayr | 639 | je .free |
1159 | hidnplayr | 640 | |
1542 | hidnplayr | 641 | cmp [eax + SOCKET.Protocol], IP_PROTO_ICMP |
1514 | hidnplayr | 642 | je .free |
1159 | hidnplayr | 643 | |
1542 | hidnplayr | 644 | cmp [eax + SOCKET.Protocol], IP_PROTO_IP |
645 | je .free |
||
646 | |||
647 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
1206 | hidnplayr | 648 | je .tcp |
1159 | hidnplayr | 649 | |
1185 | hidnplayr | 650 | jmp s_error |
1159 | hidnplayr | 651 | |
652 | .tcp: |
||
1831 | hidnplayr | 653 | cmp [eax + TCP_SOCKET.t_state], TCPS_SYN_RECEIVED ; state must be LISTEN, SYN_SENT or CLOSED |
2300 | hidnplayr | 654 | jb .free |
1318 | hidnplayr | 655 | |
1536 | hidnplayr | 656 | call TCP_output |
657 | mov dword [esp+32], 0 |
||
1159 | hidnplayr | 658 | |
1536 | hidnplayr | 659 | ret |
1159 | hidnplayr | 660 | |
1514 | hidnplayr | 661 | .free: |
662 | call SOCKET_free |
||
663 | mov dword [esp+32], 0 |
||
1159 | hidnplayr | 664 | |
665 | ret |
||
666 | |||
667 | |||
1257 | hidnplayr | 668 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 669 | ; |
670 | ; SOCKET_receive |
||
671 | ; |
||
672 | ; IN: socket number in ecx |
||
1249 | hidnplayr | 673 | ; addr to buffer in edx |
674 | ; length of buffer in esi |
||
1159 | hidnplayr | 675 | ; flags in edi |
676 | ; OUT: eax is number of bytes copied, -1 on error |
||
677 | ; |
||
1257 | hidnplayr | 678 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 679 | align 4 |
1514 | hidnplayr | 680 | SOCKET_receive: |
1159 | hidnplayr | 681 | |
1536 | hidnplayr | 682 | DEBUGF 1,"SOCKET_receive: socknum: %u bufaddr: %x, buflength: %u, flags: %x, ", ecx, edx, esi, edi |
1514 | hidnplayr | 683 | |
684 | call SOCKET_num_to_ptr |
||
1185 | hidnplayr | 685 | jz s_error |
1159 | hidnplayr | 686 | |
1536 | hidnplayr | 687 | jmp [eax + SOCKET.rcv_proc] |
1533 | hidnplayr | 688 | |
1536 | hidnplayr | 689 | |
690 | align 4 |
||
1541 | hidnplayr | 691 | SOCKET_receive_dgram: |
1536 | hidnplayr | 692 | |
1541 | hidnplayr | 693 | DEBUGF 1,"SOCKET_receive: DGRAM\n" |
1536 | hidnplayr | 694 | |
1281 | hidnplayr | 695 | mov ebx, esi |
1514 | hidnplayr | 696 | mov edi, edx ; addr to buffer |
1159 | hidnplayr | 697 | |
2305 | hidnplayr | 698 | get_from_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, s_error ; destroys esi and ecx |
1536 | hidnplayr | 699 | |
1249 | hidnplayr | 700 | mov ecx, [esi + socket_queue_entry.data_size] |
701 | DEBUGF 1,"Got %u bytes of data\n", ecx |
||
1159 | hidnplayr | 702 | |
1281 | hidnplayr | 703 | cmp ecx, ebx |
2300 | hidnplayr | 704 | ja .too_small |
1514 | hidnplayr | 705 | |
1536 | hidnplayr | 706 | push [esi + socket_queue_entry.buf_ptr] ; save the buffer addr so we can clear it later |
1514 | hidnplayr | 707 | mov esi, [esi + socket_queue_entry.data_ptr] |
1249 | hidnplayr | 708 | DEBUGF 1,"Source buffer: %x, real addr: %x\n", [esp], esi |
2303 | hidnplayr | 709 | mov [esp+32+4], ecx ; return number of bytes copied |
1159 | hidnplayr | 710 | |
1514 | hidnplayr | 711 | ; copy the data |
1249 | hidnplayr | 712 | shr ecx, 1 |
713 | jnc .nb |
||
714 | movsb |
||
1536 | hidnplayr | 715 | .nb: |
716 | shr ecx, 1 |
||
1249 | hidnplayr | 717 | jnc .nw |
718 | movsw |
||
1536 | hidnplayr | 719 | .nw: |
720 | test ecx, ecx |
||
1274 | hidnplayr | 721 | jz .nd |
722 | rep movsd |
||
1536 | hidnplayr | 723 | .nd: |
1159 | hidnplayr | 724 | |
1536 | hidnplayr | 725 | call kernel_free ; remove the packet |
1533 | hidnplayr | 726 | ret |
1514 | hidnplayr | 727 | |
1536 | hidnplayr | 728 | .too_small: |
1533 | hidnplayr | 729 | |
1536 | hidnplayr | 730 | DEBUGF 1,"Buffer too small...\n" |
731 | jmp s_error |
||
732 | |||
733 | align 4 |
||
734 | SOCKET_receive_tcp: |
||
735 | |||
1541 | hidnplayr | 736 | DEBUGF 1,"SOCKET_receive: TCP\n" |
1536 | hidnplayr | 737 | |
1533 | hidnplayr | 738 | mov ecx, esi |
739 | mov edi, edx |
||
740 | add eax, STREAM_SOCKET.rcv |
||
741 | call SOCKET_ring_read |
||
1534 | hidnplayr | 742 | call SOCKET_ring_free |
1533 | hidnplayr | 743 | |
2303 | hidnplayr | 744 | mov [esp+32], ecx ; return number of bytes copied |
1533 | hidnplayr | 745 | |
1159 | hidnplayr | 746 | ret |
747 | |||
748 | |||
1257 | hidnplayr | 749 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 750 | ; |
751 | ; SOCKET_send |
||
752 | ; |
||
753 | ; |
||
754 | ; IN: socket number in ecx |
||
1206 | hidnplayr | 755 | ; pointer to data in edx |
756 | ; datalength in esi |
||
1159 | hidnplayr | 757 | ; flags in edi |
758 | ; OUT: -1 on error |
||
759 | ; |
||
1257 | hidnplayr | 760 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 761 | align 4 |
1514 | hidnplayr | 762 | SOCKET_send: |
1159 | hidnplayr | 763 | |
1541 | hidnplayr | 764 | DEBUGF 1,"SOCKET_send: socknum: %u data ptr: %x, length: %u, flags: %x, ", ecx, edx, esi, edi |
1159 | hidnplayr | 765 | |
1514 | hidnplayr | 766 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 767 | jz s_error |
1159 | hidnplayr | 768 | |
1763 | hidnplayr | 769 | mov ecx, esi |
770 | mov esi, edx |
||
771 | |||
1536 | hidnplayr | 772 | jmp [eax + SOCKET.snd_proc] |
1206 | hidnplayr | 773 | |
774 | |||
1536 | hidnplayr | 775 | align 4 |
776 | SOCKET_send_udp: |
||
1529 | hidnplayr | 777 | |
1541 | hidnplayr | 778 | DEBUGF 1,"SOCKET_send: UDP\n" |
1159 | hidnplayr | 779 | |
1514 | hidnplayr | 780 | call UDP_output |
1159 | hidnplayr | 781 | |
2303 | hidnplayr | 782 | mov [esp+32], eax |
1159 | hidnplayr | 783 | ret |
784 | |||
785 | |||
1536 | hidnplayr | 786 | align 4 |
787 | SOCKET_send_tcp: |
||
1254 | hidnplayr | 788 | |
1541 | hidnplayr | 789 | DEBUGF 1,"SOCKET_send: TCP\n" |
1254 | hidnplayr | 790 | |
1533 | hidnplayr | 791 | push eax |
792 | add eax, STREAM_SOCKET.snd |
||
793 | call SOCKET_ring_write |
||
794 | pop eax |
||
1536 | hidnplayr | 795 | |
1514 | hidnplayr | 796 | call TCP_output |
1254 | hidnplayr | 797 | |
1249 | hidnplayr | 798 | mov [esp+32], eax |
799 | ret |
||
1159 | hidnplayr | 800 | |
1249 | hidnplayr | 801 | |
1543 | hidnplayr | 802 | align 4 |
803 | SOCKET_send_ip: |
||
1249 | hidnplayr | 804 | |
1543 | hidnplayr | 805 | DEBUGF 1,"type: IP\n" |
806 | |||
807 | call IPv4_output_raw |
||
808 | |||
1763 | hidnplayr | 809 | mov [esp+32], eax |
1543 | hidnplayr | 810 | ret |
811 | |||
1541 | hidnplayr | 812 | align 4 |
813 | SOCKET_send_icmp: |
||
1249 | hidnplayr | 814 | |
1541 | hidnplayr | 815 | DEBUGF 1,"SOCKET_send: ICMP\n" |
816 | |||
817 | call ICMP_output_raw |
||
818 | |||
2303 | hidnplayr | 819 | mov [esp+32], eax |
1541 | hidnplayr | 820 | ret |
821 | |||
822 | |||
823 | |||
824 | |||
1257 | hidnplayr | 825 | ;----------------------------------------------------------------- |
1256 | clevermous | 826 | ; |
1257 | hidnplayr | 827 | ; SOCKET_get_options |
1256 | clevermous | 828 | ; |
1514 | hidnplayr | 829 | ; IN: ecx = socket number |
830 | ; edx = pointer to the options: |
||
1257 | hidnplayr | 831 | ; dd level, optname, optval, optlen |
1256 | clevermous | 832 | ; OUT: -1 on error |
833 | ; |
||
834 | ; At moment, uses only pseudo-optname -2 for get last_ack_number for TCP. |
||
835 | ; TODO: find best way to notify that send()'ed data were acknowledged |
||
1831 | hidnplayr | 836 | ; Also pseudo-optname -3 is valid and returns socket state, one of TCPS_*. |
1256 | clevermous | 837 | ; |
1257 | hidnplayr | 838 | ;----------------------------------------------------------------- |
839 | align 4 |
||
1514 | hidnplayr | 840 | SOCKET_get_opt: |
1257 | hidnplayr | 841 | |
1536 | hidnplayr | 842 | DEBUGF 1,"SOCKET_get_opt\n" |
1514 | hidnplayr | 843 | |
844 | call SOCKET_num_to_ptr |
||
845 | jz s_error |
||
846 | |||
1256 | clevermous | 847 | cmp dword [edx], IP_PROTO_TCP |
2302 | hidnplayr | 848 | jne s_error |
1256 | clevermous | 849 | cmp dword [edx+4], -2 |
2302 | hidnplayr | 850 | je @f |
1299 | clevermous | 851 | cmp dword [edx+4], -3 |
2302 | hidnplayr | 852 | jne s_error |
1299 | clevermous | 853 | @@: |
1514 | hidnplayr | 854 | ; mov eax, [edx+12] |
855 | ; test eax, eax |
||
856 | ; jz .fail |
||
857 | ; cmp dword [eax], 4 |
||
858 | ; mov dword [eax], 4 |
||
859 | ; jb .fail |
||
860 | ; stdcall net_socket_num_to_addr, ecx |
||
861 | ; test eax, eax |
||
862 | ; jz .fail |
||
863 | ; ; todo: check that eax is really TCP socket |
||
864 | ; mov ecx, [eax + TCP_SOCKET.last_ack_number] |
||
865 | ; cmp dword [edx+4], -2 |
||
866 | ; jz @f |
||
867 | ; mov ecx, [eax + TCP_SOCKET.state] |
||
1299 | clevermous | 868 | @@: |
1256 | clevermous | 869 | mov eax, [edx+8] |
870 | test eax, eax |
||
871 | jz @f |
||
872 | mov [eax], ecx |
||
873 | @@: |
||
1257 | hidnplayr | 874 | mov dword [esp+32], 0 |
1256 | clevermous | 875 | ret |
1159 | hidnplayr | 876 | |
877 | |||
1529 | hidnplayr | 878 | |
1542 | hidnplayr | 879 | |
880 | align 4 |
||
881 | SOCKET_set_opt: |
||
882 | |||
883 | ret |
||
884 | |||
885 | |||
886 | |||
1257 | hidnplayr | 887 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 888 | ; |
1529 | hidnplayr | 889 | ; SOCKET_debug |
890 | ; |
||
891 | ; Copies socket variables to application buffer |
||
892 | ; |
||
893 | ; IN: ecx = socket number |
||
894 | ; edx = pointer to buffer |
||
895 | ; |
||
896 | ; OUT: -1 on error |
||
897 | ;----------------------------------------------------------------- |
||
898 | align 4 |
||
899 | SOCKET_debug: |
||
900 | |||
901 | DEBUGF 1,"socket_debug\n" |
||
902 | |||
903 | call SOCKET_num_to_ptr |
||
904 | jz s_error |
||
905 | |||
906 | mov esi, eax |
||
907 | mov edi, edx |
||
908 | mov ecx, SOCKETBUFFSIZE/4 |
||
909 | rep movsd |
||
910 | |||
911 | mov dword [esp+32], 0 |
||
912 | ret |
||
913 | |||
914 | |||
915 | ;----------------------------------------------------------------- |
||
916 | ; |
||
1514 | hidnplayr | 917 | ; SOCKET_find_port |
1206 | hidnplayr | 918 | ; |
1514 | hidnplayr | 919 | ; Fills in the local port number for TCP and UDP sockets |
920 | ; This procedure always works because the number of sockets is |
||
921 | ; limited to a smaller number then the number of possible ports |
||
1206 | hidnplayr | 922 | ; |
1514 | hidnplayr | 923 | ; IN: eax = socket pointer |
924 | ; OUT: / |
||
1206 | hidnplayr | 925 | ; |
1257 | hidnplayr | 926 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 927 | align 4 |
1514 | hidnplayr | 928 | SOCKET_find_port: |
1159 | hidnplayr | 929 | |
1536 | hidnplayr | 930 | DEBUGF 1,"SOCKET_find_port\n" |
1159 | hidnplayr | 931 | |
1514 | hidnplayr | 932 | push ebx esi ecx |
933 | |||
1542 | hidnplayr | 934 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
1206 | hidnplayr | 935 | je .udp |
1159 | hidnplayr | 936 | |
1542 | hidnplayr | 937 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
1206 | hidnplayr | 938 | je .tcp |
1159 | hidnplayr | 939 | |
1514 | hidnplayr | 940 | jmp .error |
941 | |||
942 | .done: |
||
943 | mov [eax + UDP_SOCKET.LocalPort], bx |
||
944 | .error: |
||
945 | pop ecx esi ebx |
||
946 | ret |
||
947 | |||
1206 | hidnplayr | 948 | .udp: |
949 | mov bx, [last_UDP_port] |
||
1514 | hidnplayr | 950 | call .findit |
951 | mov [last_UDP_port], bx |
||
952 | jmp .done |
||
1206 | hidnplayr | 953 | |
954 | .tcp: |
||
955 | mov bx, [last_TCP_port] |
||
1514 | hidnplayr | 956 | call .findit |
957 | mov [last_TCP_port], bx |
||
958 | jmp .done |
||
1206 | hidnplayr | 959 | |
960 | |||
1514 | hidnplayr | 961 | .restart: |
962 | mov bx, MIN_EPHEMERAL_PORT |
||
963 | .findit: |
||
1206 | hidnplayr | 964 | inc bx |
965 | |||
966 | cmp bx, MAX_EPHEMERAL_PORT |
||
1514 | hidnplayr | 967 | jz .restart |
1206 | hidnplayr | 968 | |
1514 | hidnplayr | 969 | call SOCKET_check_port |
970 | jz .findit |
||
1206 | hidnplayr | 971 | |
972 | ret |
||
973 | |||
1257 | hidnplayr | 974 | |
975 | |||
976 | ;----------------------------------------------------------------- |
||
1206 | hidnplayr | 977 | ; |
1542 | hidnplayr | 978 | ; SOCKET_check_port (to be used with AF_INET only!) |
1206 | hidnplayr | 979 | ; |
1514 | hidnplayr | 980 | ; Checks if a local port number is unused |
981 | ; If the proposed port number is unused, it is filled in in the socket structure |
||
1206 | hidnplayr | 982 | ; |
1514 | hidnplayr | 983 | ; IN: eax = socket ptr (to find out if its a TCP/UDP socket) |
984 | ; bx = proposed socket number |
||
1206 | hidnplayr | 985 | ; |
1514 | hidnplayr | 986 | ; OUT: ZF = cleared on error |
987 | ; |
||
1257 | hidnplayr | 988 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 989 | align 4 |
1514 | hidnplayr | 990 | SOCKET_check_port: |
991 | |||
1536 | hidnplayr | 992 | DEBUGF 1,"SOCKET_check_port\n" |
1514 | hidnplayr | 993 | |
1542 | hidnplayr | 994 | mov ecx, [eax + SOCKET.Protocol] |
1206 | hidnplayr | 995 | mov esi, net_sockets |
996 | |||
997 | .next_socket: |
||
1514 | hidnplayr | 998 | mov esi, [esi + SOCKET.NextPtr] |
1206 | hidnplayr | 999 | or esi, esi |
1000 | jz .port_ok |
||
1001 | |||
1542 | hidnplayr | 1002 | cmp [esi + SOCKET.Protocol], ecx |
1206 | hidnplayr | 1003 | jne .next_socket |
1004 | |||
1514 | hidnplayr | 1005 | cmp [esi + UDP_SOCKET.LocalPort], bx |
1206 | hidnplayr | 1006 | jne .next_socket |
1007 | |||
1514 | hidnplayr | 1008 | DEBUGF 1,"local port %u already in use\n", bx |
1009 | ret |
||
1206 | hidnplayr | 1010 | |
1011 | .port_ok: |
||
1514 | hidnplayr | 1012 | mov [eax + UDP_SOCKET.LocalPort], bx |
1013 | or bx, bx ; set the zero-flag |
||
1014 | |||
1206 | hidnplayr | 1015 | ret |
1016 | |||
1017 | |||
1257 | hidnplayr | 1018 | |
1019 | ;----------------------------------------------------------------- |
||
1206 | hidnplayr | 1020 | ; |
1514 | hidnplayr | 1021 | ; SOCKET_input |
1206 | hidnplayr | 1022 | ; |
1536 | hidnplayr | 1023 | ; Updates a (stateless) socket with received data |
1206 | hidnplayr | 1024 | ; |
1514 | hidnplayr | 1025 | ; Note: the mutex should already be set ! |
1206 | hidnplayr | 1026 | ; |
1249 | hidnplayr | 1027 | ; IN: eax = socket ptr |
1514 | hidnplayr | 1028 | ; ebx = pointer to device struct |
1029 | ; ecx = data size |
||
1030 | ; esi = ptr to data |
||
1031 | ; [esp] = ptr to buf |
||
1032 | ; [esp + 4] = buf size |
||
1249 | hidnplayr | 1033 | ; |
1514 | hidnplayr | 1034 | ; OUT: / |
1206 | hidnplayr | 1035 | ; |
1257 | hidnplayr | 1036 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 1037 | align 4 |
1514 | hidnplayr | 1038 | SOCKET_input: |
1206 | hidnplayr | 1039 | |
1536 | hidnplayr | 1040 | DEBUGF 1,"SOCKET_input: socket=%x, data=%x size=%u\n", eax, esi, ecx |
1206 | hidnplayr | 1041 | |
2303 | hidnplayr | 1042 | mov [esp+4], ecx |
1514 | hidnplayr | 1043 | push esi |
1249 | hidnplayr | 1044 | mov esi, esp |
1514 | hidnplayr | 1045 | |
2305 | hidnplayr | 1046 | add_to_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, SOCKET_input.full |
1514 | hidnplayr | 1047 | |
1541 | hidnplayr | 1048 | DEBUGF 1,"SOCKET_input: queued packet successfully\n" |
2305 | hidnplayr | 1049 | add esp, sizeof.socket_queue_entry |
1514 | hidnplayr | 1050 | mov [eax + SOCKET.lock], 0 |
1051 | jmp SOCKET_notify_owner |
||
1206 | hidnplayr | 1052 | |
1514 | hidnplayr | 1053 | .full: |
1541 | hidnplayr | 1054 | DEBUGF 2,"SOCKET_input: socket %x is full!\n", eax |
1514 | hidnplayr | 1055 | mov [eax + SOCKET.lock], 0 |
1056 | call kernel_free |
||
1057 | add esp, 8 |
||
1206 | hidnplayr | 1058 | |
1514 | hidnplayr | 1059 | ret |
1060 | |||
1533 | hidnplayr | 1061 | |
1062 | ;-------------------------- |
||
1063 | ; |
||
1064 | ; eax = ptr to ring struct (just a buffer of the right size) |
||
1065 | ; |
||
1066 | align 4 |
||
1067 | SOCKET_ring_create: |
||
1068 | |||
1543 | hidnplayr | 1069 | push esi |
1533 | hidnplayr | 1070 | mov esi, eax |
1543 | hidnplayr | 1071 | |
1072 | push edx |
||
1533 | hidnplayr | 1073 | stdcall create_ring_buffer, SOCKET_MAXDATA, PG_SW |
1543 | hidnplayr | 1074 | pop edx |
1533 | hidnplayr | 1075 | |
1076 | DEBUGF 1,"SOCKET_ring_created: %x\n", eax |
||
1077 | mov [esi + RING_BUFFER.start_ptr], eax |
||
1078 | mov [esi + RING_BUFFER.write_ptr], eax |
||
1079 | mov [esi + RING_BUFFER.read_ptr], eax |
||
1080 | mov [esi + RING_BUFFER.size], 0 |
||
1081 | add eax, SOCKET_MAXDATA |
||
1082 | mov [esi + RING_BUFFER.end_ptr], eax |
||
1543 | hidnplayr | 1083 | mov eax, esi |
1084 | pop esi |
||
1533 | hidnplayr | 1085 | |
1086 | ret |
||
1087 | |||
1514 | hidnplayr | 1088 | ;----------------------------------------------------------------- |
1089 | ; |
||
1533 | hidnplayr | 1090 | ; SOCKET_ring_write |
1529 | hidnplayr | 1091 | ; |
1533 | hidnplayr | 1092 | ; Adds data to a stream socket, and updates write pointer and size |
1529 | hidnplayr | 1093 | ; |
1094 | ; IN: eax = ptr to ring struct |
||
1095 | ; ecx = data size |
||
1096 | ; esi = ptr to data |
||
1097 | ; |
||
1533 | hidnplayr | 1098 | ; OUT: ecx = number of bytes stored |
1529 | hidnplayr | 1099 | ; |
1100 | ;----------------------------------------------------------------- |
||
1101 | align 4 |
||
1533 | hidnplayr | 1102 | SOCKET_ring_write: |
1529 | hidnplayr | 1103 | |
1533 | hidnplayr | 1104 | DEBUGF 1,"SOCKET_ring_write: ringbuff=%x ptr=%x size=%u\n", eax, esi, ecx |
1529 | hidnplayr | 1105 | |
1533 | hidnplayr | 1106 | add [eax + RING_BUFFER.size], ecx |
1107 | cmp [eax + RING_BUFFER.size], SOCKET_MAXDATA |
||
2300 | hidnplayr | 1108 | ja .too_large |
1529 | hidnplayr | 1109 | |
1110 | .copy: |
||
1533 | hidnplayr | 1111 | mov edi, [eax + RING_BUFFER.write_ptr] |
1541 | hidnplayr | 1112 | DEBUGF 2,"SOCKET_ring_write: %u bytes from %x to %x\n", ecx, esi, edi |
1529 | hidnplayr | 1113 | |
1114 | push ecx |
||
1533 | hidnplayr | 1115 | shr ecx, 1 |
1116 | jnc .nb |
||
1117 | movsb |
||
1536 | hidnplayr | 1118 | .nb: |
1533 | hidnplayr | 1119 | shr ecx, 1 |
1120 | jnc .nw |
||
1121 | movsw |
||
1536 | hidnplayr | 1122 | .nw: |
1533 | hidnplayr | 1123 | test ecx, ecx |
1124 | jz .nd |
||
1125 | rep movsd |
||
1536 | hidnplayr | 1126 | .nd: |
1529 | hidnplayr | 1127 | pop ecx |
1128 | |||
1533 | hidnplayr | 1129 | cmp edi, [eax + RING_BUFFER.end_ptr] |
2300 | hidnplayr | 1130 | jae .wrap |
1533 | hidnplayr | 1131 | mov [eax + RING_BUFFER.write_ptr], edi |
1132 | |||
1529 | hidnplayr | 1133 | ret |
1134 | |||
1533 | hidnplayr | 1135 | .wrap: |
1136 | sub edi, SOCKET_MAXDATA |
||
1137 | mov [eax + RING_BUFFER.write_ptr], edi |
||
1138 | |||
1139 | ret |
||
1140 | |||
1529 | hidnplayr | 1141 | .too_large: |
1142 | mov ecx, SOCKET_MAXDATA ; calculate number of bytes available in buffer |
||
1143 | sub ecx, [eax + RING_BUFFER.size] |
||
2300 | hidnplayr | 1144 | jae .full |
1529 | hidnplayr | 1145 | |
1146 | mov [eax + RING_BUFFER.size], SOCKET_MAXDATA ; update size, we will fill buffer completely |
||
1147 | jmp .copy |
||
1148 | |||
1149 | .full: |
||
1541 | hidnplayr | 1150 | DEBUGF 2,"SOCKET_ring_write: ring buffer is full!\n" |
1529 | hidnplayr | 1151 | xor ecx, ecx |
1152 | ret |
||
1153 | |||
1154 | |||
1155 | ;----------------------------------------------------------------- |
||
1156 | ; |
||
1157 | ; SOCKET_ring_read |
||
1158 | ; |
||
1533 | hidnplayr | 1159 | ; reads the data, BUT DOES NOT CLEAR IT FROM MEMORY YET |
1529 | hidnplayr | 1160 | ; |
1161 | ; IN: eax = ptr to ring struct |
||
1162 | ; ecx = buffer size |
||
1163 | ; edi = ptr to buffer |
||
1164 | ; |
||
1533 | hidnplayr | 1165 | ; OUT: ecx = number of bytes read |
1529 | hidnplayr | 1166 | ; |
1167 | ;----------------------------------------------------------------- |
||
1168 | align 4 |
||
1169 | SOCKET_ring_read: |
||
1170 | |||
1533 | hidnplayr | 1171 | DEBUGF 1,"SOCKET_ring_read: ringbuff=%x ptr=%x size=%u\n", eax, edi, ecx |
1529 | hidnplayr | 1172 | |
1533 | hidnplayr | 1173 | cmp ecx, [eax + RING_BUFFER.size] |
2300 | hidnplayr | 1174 | ja .less_data |
1529 | hidnplayr | 1175 | |
1176 | .copy: |
||
1533 | hidnplayr | 1177 | mov esi, [eax + RING_BUFFER.read_ptr] |
1529 | hidnplayr | 1178 | |
1541 | hidnplayr | 1179 | DEBUGF 2,"SOCKET_ring_read: %u bytes from %x to %x\n", ecx, esi, edi |
1529 | hidnplayr | 1180 | push ecx |
1533 | hidnplayr | 1181 | shr ecx, 1 |
1182 | jnc .nb |
||
1183 | movsb |
||
1536 | hidnplayr | 1184 | .nb: |
1533 | hidnplayr | 1185 | shr ecx, 1 |
1186 | jnc .nw |
||
1187 | movsw |
||
1536 | hidnplayr | 1188 | .nw: |
1533 | hidnplayr | 1189 | test ecx, ecx |
1190 | jz .nd |
||
1191 | rep movsd |
||
1536 | hidnplayr | 1192 | .nd: |
1529 | hidnplayr | 1193 | pop ecx |
1194 | |||
1830 | hidnplayr | 1195 | .no_data_at_all: |
1529 | hidnplayr | 1196 | ret |
1197 | |||
1533 | hidnplayr | 1198 | .less_data: |
1529 | hidnplayr | 1199 | mov ecx, [eax + RING_BUFFER.size] |
1830 | hidnplayr | 1200 | ; test ecx, ecx |
1533 | hidnplayr | 1201 | ; jz .no_data_at_all |
1529 | hidnplayr | 1202 | jmp .copy |
1203 | |||
1204 | |||
1205 | ;----------------------------------------------------------------- |
||
1206 | ; |
||
1207 | ; SOCKET_ring_free |
||
1208 | ; |
||
1209 | ; Free's some bytes from the ringbuffer |
||
1210 | ; |
||
1211 | ; IN: eax = ptr to ring struct |
||
1212 | ; ecx = data size |
||
1213 | ; |
||
1214 | ; OUT: ecx = number of bytes free-ed |
||
1215 | ; |
||
1216 | ;----------------------------------------------------------------- |
||
1217 | align 4 |
||
1218 | SOCKET_ring_free: |
||
1219 | |||
1536 | hidnplayr | 1220 | DEBUGF 1,"SOCKET_ring_free: %u bytes from ring %x\n", ecx, eax |
1529 | hidnplayr | 1221 | |
1222 | sub [eax + RING_BUFFER.size], ecx |
||
2300 | hidnplayr | 1223 | jb .sumthinwong |
1529 | hidnplayr | 1224 | add [eax + RING_BUFFER.read_ptr], ecx |
1225 | |||
1226 | mov edx, [eax + RING_BUFFER.end_ptr] |
||
1227 | cmp [eax + RING_BUFFER.read_ptr], edx |
||
2300 | hidnplayr | 1228 | jb @f |
1533 | hidnplayr | 1229 | sub [eax + RING_BUFFER.read_ptr], SOCKET_MAXDATA |
1529 | hidnplayr | 1230 | @@: |
1231 | ret |
||
1232 | |||
1533 | hidnplayr | 1233 | .sumthinwong: ; we could free all available bytes, but that would be stupid, i guess.. |
1234 | add [eax + RING_BUFFER.size], ecx |
||
1529 | hidnplayr | 1235 | xor ecx, ecx |
1236 | ret |
||
1237 | |||
1238 | |||
1239 | ;----------------------------------------------------------------- |
||
1240 | ; |
||
1514 | hidnplayr | 1241 | ; SOCKET_notify_owner |
1242 | ; |
||
1243 | ; notify's the owner of a socket that something happened |
||
1244 | ; |
||
1245 | ; IN: eax = socket ptr |
||
1246 | ; OUT: / |
||
1247 | ; |
||
1248 | ;----------------------------------------------------------------- |
||
1249 | align 4 |
||
1250 | SOCKET_notify_owner: |
||
1251 | |||
1536 | hidnplayr | 1252 | DEBUGF 1,"SOCKET_notify_owner: %x\n", eax |
1514 | hidnplayr | 1253 | |
1254 | call SOCKET_check |
||
1255 | jz .error |
||
1256 | |||
1543 | hidnplayr | 1257 | push eax ecx esi |
1514 | hidnplayr | 1258 | |
1259 | ; socket exists, now try to flag an event to the application |
||
1260 | |||
1261 | mov eax, [eax + SOCKET.PID] |
||
1206 | hidnplayr | 1262 | mov ecx, 1 |
1263 | mov esi, TASK_DATA + TASKDATA.pid |
||
1264 | |||
1265 | .next_pid: |
||
1514 | hidnplayr | 1266 | cmp [esi], eax |
1206 | hidnplayr | 1267 | je .found_pid |
1268 | inc ecx |
||
1269 | add esi, 0x20 |
||
1270 | cmp ecx, [TASK_COUNT] |
||
1271 | jbe .next_pid |
||
1272 | |||
1514 | hidnplayr | 1273 | ; PID not found, TODO: close socket! |
1274 | |||
1275 | jmp .error2 |
||
1276 | |||
1206 | hidnplayr | 1277 | .found_pid: |
1278 | shl ecx, 8 |
||
1514 | hidnplayr | 1279 | or [ecx + SLOT_BASE + APPDATA.event_mask], EVENT_NETWORK |
1206 | hidnplayr | 1280 | mov [check_idle_semaphore], 200 |
1281 | |||
1536 | hidnplayr | 1282 | DEBUGF 1,"SOCKET_notify_owner: succes!\n" |
1514 | hidnplayr | 1283 | |
1284 | .error2: |
||
1543 | hidnplayr | 1285 | pop esi ecx eax |
1536 | hidnplayr | 1286 | |
1514 | hidnplayr | 1287 | .error: |
1288 | |||
1206 | hidnplayr | 1289 | ret |
1290 | |||
1291 | |||
1514 | hidnplayr | 1292 | ;-------------------------------------------------------------------- |
1293 | ; |
||
1294 | ; SOCKET_alloc |
||
1295 | ; |
||
1159 | hidnplayr | 1296 | ; Allocate memory for socket data and put new socket into the list |
1297 | ; Newly created socket is initialized with calling PID and number and |
||
1298 | ; put into beginning of list (which is a fastest way). |
||
1299 | ; |
||
1514 | hidnplayr | 1300 | ; IN: / |
1301 | ; OUT: eax = 0 on error, socket ptr otherwise |
||
1302 | ; edi = socket number |
||
1303 | ; ZF = cleared on error |
||
1159 | hidnplayr | 1304 | ; |
1514 | hidnplayr | 1305 | ;-------------------------------------------------------------------- |
1306 | align 4 |
||
1307 | SOCKET_alloc: |
||
1308 | |||
1309 | push ecx ebx |
||
1310 | |||
1159 | hidnplayr | 1311 | stdcall kernel_alloc, SOCKETBUFFSIZE |
1529 | hidnplayr | 1312 | DEBUGF 1, "SOCKET_alloc: ptr=%x\n", eax |
1159 | hidnplayr | 1313 | or eax, eax |
1314 | jz .exit |
||
1315 | |||
1514 | hidnplayr | 1316 | ; zero-initialize allocated memory |
1317 | push eax edi |
||
1159 | hidnplayr | 1318 | mov edi, eax |
1319 | mov ecx, SOCKETBUFFSIZE / 4 |
||
1320 | xor eax, eax |
||
1321 | rep stosd |
||
1514 | hidnplayr | 1322 | pop edi eax |
1159 | hidnplayr | 1323 | |
1536 | hidnplayr | 1324 | ; set send-and receive procedures to return -1 |
1325 | mov [eax + SOCKET.snd_proc], s_error |
||
1326 | mov [eax + SOCKET.rcv_proc], s_error |
||
1327 | |||
1514 | hidnplayr | 1328 | ; find first free socket number and use it |
1543 | hidnplayr | 1329 | mov ecx, [last_socket_num] |
1159 | hidnplayr | 1330 | .next_socket_number: |
1331 | inc ecx |
||
1543 | hidnplayr | 1332 | jz .next_socket_number ; avoid socket nr 0 |
1333 | cmp ecx, -1 |
||
1334 | je .next_socket_number ; avoid socket nr -1 |
||
1536 | hidnplayr | 1335 | mov ebx, net_sockets |
1159 | hidnplayr | 1336 | .next_socket: |
1514 | hidnplayr | 1337 | mov ebx, [ebx + SOCKET.NextPtr] |
1529 | hidnplayr | 1338 | test ebx, ebx |
1514 | hidnplayr | 1339 | jz .last_socket |
1536 | hidnplayr | 1340 | |
1514 | hidnplayr | 1341 | cmp [ebx + SOCKET.Number], ecx |
1159 | hidnplayr | 1342 | jne .next_socket |
1343 | jmp .next_socket_number |
||
1344 | |||
1514 | hidnplayr | 1345 | .last_socket: |
1543 | hidnplayr | 1346 | mov [last_socket_num], ecx |
1514 | hidnplayr | 1347 | mov [eax + SOCKET.Number], ecx |
1529 | hidnplayr | 1348 | DEBUGF 1, "SOCKET_alloc: number=%u\n", ecx |
1349 | mov edi, ecx |
||
1159 | hidnplayr | 1350 | |
1514 | hidnplayr | 1351 | ; Fill in PID |
1352 | mov ebx, [TASK_BASE] |
||
1353 | mov ebx, [ebx + TASKDATA.pid] |
||
1354 | mov [eax + SOCKET.PID], ebx |
||
1355 | |||
1529 | hidnplayr | 1356 | ; add socket to the list by re-arranging some pointers |
1514 | hidnplayr | 1357 | mov ebx, [net_sockets + SOCKET.NextPtr] |
1358 | |||
1359 | mov [eax + SOCKET.PrevPtr], net_sockets |
||
1360 | mov [eax + SOCKET.NextPtr], ebx |
||
1361 | |||
1529 | hidnplayr | 1362 | test ebx, ebx |
1514 | hidnplayr | 1363 | jz @f |
1364 | add ebx, SOCKET.lock ; lock the next socket |
||
1365 | call wait_mutex |
||
1366 | sub ebx, SOCKET.lock |
||
1367 | mov [ebx + SOCKET.PrevPtr], eax |
||
1536 | hidnplayr | 1368 | mov [ebx + SOCKET.lock], 0 ; and unlock it again |
1514 | hidnplayr | 1369 | @@: |
1370 | |||
1371 | mov [net_sockets + SOCKET.NextPtr], eax |
||
1529 | hidnplayr | 1372 | or eax, eax ; used to clear zero flag |
1159 | hidnplayr | 1373 | .exit: |
1514 | hidnplayr | 1374 | pop ebx ecx |
1375 | |||
1159 | hidnplayr | 1376 | ret |
1377 | |||
1514 | hidnplayr | 1378 | |
1379 | ;---------------------------------------------------- |
||
1159 | hidnplayr | 1380 | ; |
1514 | hidnplayr | 1381 | ; SOCKET_free |
1159 | hidnplayr | 1382 | ; |
1514 | hidnplayr | 1383 | ; Free socket data memory and remove socket from the list |
1384 | ; |
||
1385 | ; IN: eax = socket ptr |
||
1386 | ; OUT: / |
||
1387 | ; |
||
1388 | ;---------------------------------------------------- |
||
1389 | align 4 |
||
1390 | SOCKET_free: |
||
1159 | hidnplayr | 1391 | |
1536 | hidnplayr | 1392 | DEBUGF 1, "SOCKET_free: %x\n", eax |
1514 | hidnplayr | 1393 | |
1394 | call SOCKET_check |
||
1159 | hidnplayr | 1395 | jz .error |
1396 | |||
1514 | hidnplayr | 1397 | push ebx |
1398 | lea ebx, [eax + SOCKET.lock] |
||
1399 | call wait_mutex |
||
1400 | |||
1541 | hidnplayr | 1401 | DEBUGF 1, "SOCKET_free: freeing socket..\n" |
1514 | hidnplayr | 1402 | |
1529 | hidnplayr | 1403 | cmp [eax + SOCKET.Domain], AF_INET4 |
1536 | hidnplayr | 1404 | jnz .no_tcp |
1529 | hidnplayr | 1405 | |
1542 | hidnplayr | 1406 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
1536 | hidnplayr | 1407 | jnz .no_tcp |
1529 | hidnplayr | 1408 | |
1536 | hidnplayr | 1409 | mov ebx, eax |
1410 | stdcall kernel_free, [ebx + STREAM_SOCKET.rcv + RING_BUFFER.start_ptr] |
||
1411 | stdcall kernel_free, [ebx + STREAM_SOCKET.snd + RING_BUFFER.start_ptr] |
||
1412 | mov eax, ebx |
||
1413 | .no_tcp: |
||
1529 | hidnplayr | 1414 | |
1514 | hidnplayr | 1415 | push eax ; this will be passed to kernel_free |
1416 | mov ebx, [eax + SOCKET.NextPtr] |
||
1417 | mov eax, [eax + SOCKET.PrevPtr] |
||
1418 | |||
1541 | hidnplayr | 1419 | DEBUGF 1, "SOCKET_free: linking socket %x to socket %x\n", eax, ebx |
1514 | hidnplayr | 1420 | |
1421 | test eax, eax |
||
1159 | hidnplayr | 1422 | jz @f |
1514 | hidnplayr | 1423 | mov [eax + SOCKET.NextPtr], ebx |
1424 | @@: |
||
1159 | hidnplayr | 1425 | |
1514 | hidnplayr | 1426 | test ebx, ebx |
1427 | jz @f |
||
1428 | mov [ebx + SOCKET.PrevPtr], eax |
||
1429 | @@: |
||
1249 | hidnplayr | 1430 | |
1514 | hidnplayr | 1431 | call kernel_free |
1432 | pop ebx |
||
1159 | hidnplayr | 1433 | |
1541 | hidnplayr | 1434 | DEBUGF 1, "SOCKET_free: success!\n" |
1514 | hidnplayr | 1435 | |
1159 | hidnplayr | 1436 | .error: |
1437 | ret |
||
1438 | |||
1543 | hidnplayr | 1439 | ;------------------------------------ |
1440 | ; |
||
1441 | ; SOCKET_fork |
||
1442 | ; |
||
1443 | ; Create a child socket |
||
1444 | ; |
||
1533 | hidnplayr | 1445 | ; IN: socket nr in ebx |
1543 | hidnplayr | 1446 | ; OUT: child socket nr in eax |
1447 | ; |
||
1448 | ;----------------------------------- |
||
1529 | hidnplayr | 1449 | align 4 |
1450 | SOCKET_fork: |
||
1451 | |||
1543 | hidnplayr | 1452 | DEBUGF 1,"SOCKET_fork: %x\n", ebx |
1529 | hidnplayr | 1453 | |
1543 | hidnplayr | 1454 | ; Exit if backlog queue is full |
1455 | mov eax, [ebx + SOCKET_QUEUE_LOCATION + queue.size] |
||
1456 | cmp ax, [ebx + SOCKET.backlog] |
||
2300 | hidnplayr | 1457 | jae .fail |
1543 | hidnplayr | 1458 | |
1529 | hidnplayr | 1459 | ; Allocate new socket |
1460 | call SOCKET_alloc |
||
1543 | hidnplayr | 1461 | jz .fail |
1529 | hidnplayr | 1462 | |
1543 | hidnplayr | 1463 | push esi ecx edi |
1464 | push eax |
||
1465 | mov esi, esp |
||
1466 | add_to_queue (ebx + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, .fail2 |
||
1467 | pop eax |
||
1468 | |||
1469 | ; Copy structure from current socket to new |
||
1470 | ; We start at PID to preserve the socket num, and the 2 pointers at beginning of socket |
||
1471 | lea esi, [ebx + SOCKET.PID] |
||
1529 | hidnplayr | 1472 | lea edi, [eax + SOCKET.PID] |
1543 | hidnplayr | 1473 | mov ecx, (SOCKET_QUEUE_LOCATION - SOCKET.PID + 3)/4 |
1529 | hidnplayr | 1474 | rep movsd |
1475 | |||
1543 | hidnplayr | 1476 | and [eax + SOCKET.options], not SO_ACCEPTCON |
1477 | pop edi ecx esi |
||
1529 | hidnplayr | 1478 | |
1479 | ret |
||
1480 | |||
1543 | hidnplayr | 1481 | .fail2: |
1482 | add esp, 4+4+4 |
||
1483 | .fail: |
||
1484 | DEBUGF 1,"SOCKET_fork: failed\n" |
||
1485 | xor eax, eax |
||
1486 | ret |
||
1529 | hidnplayr | 1487 | |
1543 | hidnplayr | 1488 | |
1514 | hidnplayr | 1489 | ;--------------------------------------------------- |
1490 | ; |
||
1491 | ; SOCKET_num_to_ptr |
||
1492 | ; |
||
1159 | hidnplayr | 1493 | ; Get socket structure address by its number |
1494 | ; |
||
1514 | hidnplayr | 1495 | ; IN: ecx = socket number |
1533 | hidnplayr | 1496 | ; OUT: eax = 0 on error, socket ptr otherwise |
1514 | hidnplayr | 1497 | ; ZF = set on error |
1159 | hidnplayr | 1498 | ; |
1514 | hidnplayr | 1499 | ;--------------------------------------------------- |
1500 | align 4 |
||
1501 | SOCKET_num_to_ptr: |
||
1159 | hidnplayr | 1502 | |
1536 | hidnplayr | 1503 | DEBUGF 1,"SOCKET_num_to_ptr: %u ", ecx |
1514 | hidnplayr | 1504 | |
1505 | mov eax, net_sockets |
||
1506 | |||
1159 | hidnplayr | 1507 | .next_socket: |
1514 | hidnplayr | 1508 | mov eax, [eax + SOCKET.NextPtr] |
1509 | or eax, eax |
||
1159 | hidnplayr | 1510 | jz .error |
1514 | hidnplayr | 1511 | cmp [eax + SOCKET.Number], ecx |
1159 | hidnplayr | 1512 | jne .next_socket |
1513 | |||
1514 | hidnplayr | 1514 | test eax, eax |
1159 | hidnplayr | 1515 | |
1514 | hidnplayr | 1516 | DEBUGF 1,"(%x)\n", eax |
1159 | hidnplayr | 1517 | .error: |
1518 | ret |
||
1519 | |||
1514 | hidnplayr | 1520 | |
1521 | ;--------------------------------------------------- |
||
1159 | hidnplayr | 1522 | ; |
1514 | hidnplayr | 1523 | ; SOCKET_ptr_to_num |
1159 | hidnplayr | 1524 | ; |
1514 | hidnplayr | 1525 | ; Get socket number by its address |
1526 | ; |
||
1527 | ; IN: eax = socket ptr |
||
1528 | ; OUT: eax = 0 on error, socket num otherwise |
||
1529 | ; ZF = set on error |
||
1530 | ; |
||
1531 | ;--------------------------------------------------- |
||
1532 | align 4 |
||
1533 | SOCKET_ptr_to_num: |
||
1534 | |||
1536 | hidnplayr | 1535 | DEBUGF 1,"SOCKET_ptr_to_num: %x ", eax |
1514 | hidnplayr | 1536 | |
1537 | call SOCKET_check |
||
1159 | hidnplayr | 1538 | jz .error |
1539 | |||
1514 | hidnplayr | 1540 | mov eax, [eax + SOCKET.Number] |
1541 | |||
1542 | DEBUGF 1,"(%u)\n", eax |
||
1543 | |||
1544 | .error: |
||
1545 | ret |
||
1546 | |||
1547 | |||
1548 | ;--------------------------------------------------- |
||
1549 | ; |
||
1550 | ; SOCKET_check |
||
1551 | ; |
||
1552 | ; checks if the given value is really a socket ptr |
||
1553 | ; |
||
1554 | ; IN: eax = socket ptr |
||
1555 | ; OUT: eax = 0 on error, unchanged otherwise |
||
1556 | ; ZF = set on error |
||
1557 | ; |
||
1558 | ;--------------------------------------------------- |
||
1559 | align 4 |
||
1560 | SOCKET_check: |
||
1561 | |||
1536 | hidnplayr | 1562 | DEBUGF 1,"SOCKET_check: %x\n", eax |
1514 | hidnplayr | 1563 | |
1564 | push ebx |
||
1159 | hidnplayr | 1565 | mov ebx, net_sockets |
1514 | hidnplayr | 1566 | |
1159 | hidnplayr | 1567 | .next_socket: |
1514 | hidnplayr | 1568 | mov ebx, [ebx + SOCKET.NextPtr] |
1159 | hidnplayr | 1569 | or ebx, ebx |
1514 | hidnplayr | 1570 | jz .done |
1159 | hidnplayr | 1571 | cmp ebx, eax |
1514 | hidnplayr | 1572 | jnz .next_socket |
1159 | hidnplayr | 1573 | |
1514 | hidnplayr | 1574 | .done: |
1575 | mov eax, ebx |
||
1576 | test eax, eax |
||
1577 | pop ebx |
||
1578 | |||
1159 | hidnplayr | 1579 | ret |
1580 | |||
1514 | hidnplayr | 1581 | |
1582 | |||
1583 | ;--------------------------------------------------- |
||
1584 | ; |
||
1585 | ; SOCKET_check_owner |
||
1586 | ; |
||
1587 | ; checks if the caller application owns the socket |
||
1588 | ; |
||
1589 | ; IN: eax = socket ptr |
||
1590 | ; OUT: ZF = true/false |
||
1591 | ; |
||
1592 | ;--------------------------------------------------- |
||
1593 | align 4 |
||
1594 | SOCKET_check_owner: |
||
1595 | |||
1536 | hidnplayr | 1596 | DEBUGF 1,"SOCKET_check_owner: %x\n", eax |
1514 | hidnplayr | 1597 | |
1598 | push ebx |
||
1599 | mov ebx, [TASK_BASE] |
||
1600 | mov ebx, [ecx + TASKDATA.pid] |
||
1601 | cmp [eax + SOCKET.PID], ebx |
||
1602 | pop ebx |
||
1603 | |||
1159 | hidnplayr | 1604 | ret |
1514 | hidnplayr | 1605 | |
1606 | |||
1607 | |||
1608 | |||
1885 | hidnplayr | 1609 | ;------------------------------------------------------ |
1514 | hidnplayr | 1610 | ; |
1611 | ; SOCKET_process_end |
||
1612 | ; |
||
1613 | ; Kernel calls this function when a certain process ends |
||
1614 | ; This function will check if the process had any open sockets |
||
1615 | ; And update them accordingly |
||
1616 | ; |
||
1617 | ; IN: eax = pid |
||
1618 | ; OUT: / |
||
1619 | ; |
||
1620 | ;------------------------------------------------------ |
||
1621 | align 4 |
||
1622 | SOCKET_process_end: |
||
1623 | |||
1536 | hidnplayr | 1624 | DEBUGF 1,"SOCKET_process_end: %x\n", eax |
1514 | hidnplayr | 1625 | |
1626 | push ebx |
||
1627 | mov ebx, net_sockets |
||
1628 | |||
1629 | .next_socket: |
||
1630 | |||
1631 | mov ebx, [ebx + SOCKET.NextPtr] |
||
1632 | .test_socket: |
||
1633 | test ebx, ebx |
||
1634 | jz .done |
||
1635 | |||
1636 | cmp [ebx + SOCKET.PID], eax |
||
1637 | jne .next_socket |
||
1638 | |||
1639 | DEBUGF 1,"closing socket %x", eax, ebx |
||
1640 | |||
1641 | mov [ebx + SOCKET.PID], 0 |
||
1642 | |||
1542 | hidnplayr | 1643 | cmp [ebx + SOCKET.Protocol], IP_PROTO_UDP |
1514 | hidnplayr | 1644 | je .udp |
1645 | |||
1542 | hidnplayr | 1646 | cmp [ebx + SOCKET.Protocol], IP_PROTO_TCP |
1514 | hidnplayr | 1647 | je .tcp |
1648 | |||
1649 | jmp .next_socket ; kill all sockets for given PID |
||
1650 | |||
1651 | .udp: |
||
1652 | mov eax, ebx |
||
1653 | mov ebx, [ebx + SOCKET.NextPtr] |
||
1654 | call SOCKET_free |
||
1655 | jmp .test_socket |
||
1656 | |||
1657 | .tcp: |
||
1658 | |||
1885 | hidnplayr | 1659 | ;;; TODO |
1660 | |||
1514 | hidnplayr | 1661 | jmp .next_socket |
1662 | |||
1663 | .done: |
||
1664 | pop ebx |
||
1665 | |||
1666 | ret |
||
1773 | hidnplayr | 1667 | |
1668 | |||
1669 | |||
1670 | |||
1885 | hidnplayr | 1671 | ;----------------------------------------------------------------- |
1672 | ; |
||
1673 | ; SOCKET_is_connecting |
||
1674 | ; |
||
1675 | ; IN: eax = socket ptr |
||
1676 | ; OUT: / |
||
1677 | ; |
||
1678 | ;----------------------------------------------------------------- |
||
1773 | hidnplayr | 1679 | |
1885 | hidnplayr | 1680 | align 4 |
1681 | SOCKET_is_connecting: |
||
1773 | hidnplayr | 1682 | |
1683 | |||
1885 | hidnplayr | 1684 | and [eax + SOCKET.options], not (SS_ISCONNECTED + SS_ISDISCONNECTING + SS_ISCONFIRMING) |
1685 | or [eax + SOCKET.options], SS_ISCONNECTING |
||
1773 | hidnplayr | 1686 | |
1885 | hidnplayr | 1687 | jmp SOCKET_notify_owner |
1688 | |||
1689 | |||
1690 | |||
1773 | hidnplayr | 1691 | ;----------------------------------------------------------------- |
1692 | ; |
||
1885 | hidnplayr | 1693 | ; SOCKET_is_connected |
1694 | ; |
||
1695 | ; IN: eax = socket ptr |
||
1696 | ; OUT: / |
||
1697 | ; |
||
1698 | ;----------------------------------------------------------------- |
||
1699 | |||
1700 | align 4 |
||
1701 | SOCKET_is_connected: |
||
1702 | |||
1703 | |||
1704 | and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISDISCONNECTING + SS_ISCONFIRMING) |
||
1705 | or [eax + SOCKET.options], SS_ISCONNECTED |
||
1706 | |||
1707 | jmp SOCKET_notify_owner |
||
1708 | |||
1709 | |||
1710 | |||
1711 | |||
1712 | ;----------------------------------------------------------------- |
||
1713 | ; |
||
1773 | hidnplayr | 1714 | ; SOCKET_is_disconnecting |
1715 | ; |
||
1716 | ; IN: eax = socket ptr |
||
1717 | ; OUT: / |
||
1718 | ; |
||
1719 | ;----------------------------------------------------------------- |
||
1720 | |||
1721 | align 4 |
||
1722 | SOCKET_is_disconnecting: |
||
1723 | |||
1724 | and [eax + SOCKET.options], not (SS_ISCONNECTING) |
||
1725 | or [eax + SOCKET.options], SS_ISDISCONNECTING + SS_CANTRCVMORE + SS_CANTSENDMORE |
||
1726 | |||
1727 | jmp SOCKET_notify_owner |
||
1728 | |||
1729 | |||
1730 | |||
1731 | ;----------------------------------------------------------------- |
||
1732 | ; |
||
1733 | ; SOCKET_is_disconnected |
||
1734 | ; |
||
1735 | ; IN: eax = socket ptr |
||
1736 | ; OUT: / |
||
1737 | ; |
||
1738 | ;----------------------------------------------------------------- |
||
1739 | |||
1740 | align 4 |
||
1741 | SOCKET_is_disconnected: |
||
1742 | |||
1743 | and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISCONNECTED + SS_ISDISCONNECTING) |
||
1744 | or [eax + SOCKET.options], SS_CANTRCVMORE + SS_CANTSENDMORE |
||
1745 | |||
1746 | jmp SOCKET_notify_owner |
||
1774 | hidnplayr | 1747 | |
1748 | |||
1749 | ;----------------------------------------------------------------- |
||
1750 | ; |
||
1751 | ; SOCKET_cant_recv_more |
||
1752 | ; |
||
1753 | ; IN: eax = socket ptr |
||
1754 | ; OUT: / |
||
1755 | ; |
||
1756 | ;----------------------------------------------------------------- |
||
1757 | |||
1758 | align 4 |
||
1759 | SOCKET_cant_recv_more: |
||
1760 | |||
1885 | hidnplayr | 1761 | or [eax + SOCKET.options], SS_CANTRCVMORE |
1762 | |||
1831 | hidnplayr | 1763 | ret |
1764 | |||
1765 | |||
1766 | |||
1767 | ;----------------------------------------------------------------- |
||
1768 | ; |
||
1885 | hidnplayr | 1769 | ; SOCKET_cant_send_more |
1831 | hidnplayr | 1770 | ; |
1771 | ; IN: eax = socket ptr |
||
1772 | ; OUT: / |
||
1773 | ; |
||
1774 | ;----------------------------------------------------------------- |
||
1775 | |||
1776 | align 4 |
||
1885 | hidnplayr | 1777 | SOCKET_cant_send_more: |
1831 | hidnplayr | 1778 | |
1885 | hidnplayr | 1779 | or [eax + SOCKET.options], SS_CANTSENDMORE |
1831 | hidnplayr | 1780 | |
1885 | hidnplayr | 1781 | ret |