Rev 2572 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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1159 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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2362 | hidnplayr | 3 | ;; Copyright (C) KolibriOS team 2004-2012. 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: 2573 $ |
1159 | hidnplayr | 17 | |
1773 | hidnplayr | 18 | |
2402 | hidnplayr | 19 | struct SOCKET |
1249 | hidnplayr | 20 | |
2402 | 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 | |
2402 | hidnplayr | 25 | mutex MUTEX |
1249 | hidnplayr | 26 | |
2402 | 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 | |
2402 | 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 | |
2402 | hidnplayr | 37 | snd_proc dd ? |
38 | rcv_proc dd ? |
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1536 | hidnplayr | 39 | |
2305 | hidnplayr | 40 | ends |
1249 | hidnplayr | 41 | |
2402 | hidnplayr | 42 | struct IP_SOCKET SOCKET |
1254 | hidnplayr | 43 | |
2402 | hidnplayr | 44 | LocalIP rd 4 |
45 | RemoteIP rd 4 |
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1318 | hidnplayr | 46 | |
2305 | hidnplayr | 47 | ends |
1159 | hidnplayr | 48 | |
2402 | hidnplayr | 49 | struct TCP_SOCKET IP_SOCKET |
1249 | hidnplayr | 50 | |
2402 | hidnplayr | 51 | LocalPort dw ? |
52 | RemotePort dw ? |
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1514 | hidnplayr | 53 | |
2402 | 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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2402 | 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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2402 | 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 ? |
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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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2402 | hidnplayr | 84 | RCV_ADV dd ? |
1514 | hidnplayr | 85 | |
86 | ; retransmit variables |
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2402 | hidnplayr | 87 | SND_MAX dd ? |
1514 | hidnplayr | 88 | |
89 | ; congestion control |
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2402 | 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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2402 | 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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2402 | 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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2310 | hidnplayr | 111 | ; RFC 1323 ; the order of next 4 elements may not change |
1514 | hidnplayr | 112 | |
2402 | hidnplayr | 113 | SND_SCALE db ? |
114 | RCV_SCALE db ? |
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115 | requested_s_scale db ? |
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116 | request_r_scale db ? |
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1514 | hidnplayr | 117 | |
2402 | hidnplayr | 118 | ts_recent dd ? |
119 | ts_recent_age dd ? |
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120 | last_ack_sent dd ? |
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1519 | hidnplayr | 121 | |
2310 | hidnplayr | 122 | |
1519 | hidnplayr | 123 | ;------- |
124 | ; Timers |
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2402 | hidnplayr | 125 | timer_retransmission dw ? ; rexmt |
126 | timer_persist dw ? |
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127 | timer_keepalive dw ? ; keepalive/syn timeout |
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128 | timer_timed_wait dw ? ; also used as 2msl timer |
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1519 | hidnplayr | 129 | |
2305 | hidnplayr | 130 | ends |
1249 | hidnplayr | 131 | |
2402 | hidnplayr | 132 | struct UDP_SOCKET IP_SOCKET |
1249 | hidnplayr | 133 | |
2402 | hidnplayr | 134 | LocalPort dw ? |
135 | RemotePort dw ? |
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136 | firstpacket db ? |
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1249 | hidnplayr | 137 | |
2305 | hidnplayr | 138 | ends |
1249 | hidnplayr | 139 | |
140 | |||
2402 | hidnplayr | 141 | struct ICMP_SOCKET IP_SOCKET |
1249 | hidnplayr | 142 | |
2402 | hidnplayr | 143 | Identifier dw ? |
1514 | hidnplayr | 144 | |
2305 | hidnplayr | 145 | ends |
1514 | hidnplayr | 146 | |
147 | |||
2402 | hidnplayr | 148 | struct RING_BUFFER |
2311 | hidnplayr | 149 | |
2402 | hidnplayr | 150 | start_ptr dd ? ; Pointer to start of buffer |
151 | end_ptr dd ? ; pointer to end of buffer |
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152 | read_ptr dd ? ; Read pointer |
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153 | write_ptr dd ? ; Write pointer |
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154 | size dd ? ; Number of bytes buffered |
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2311 | hidnplayr | 155 | |
2305 | hidnplayr | 156 | ends |
1514 | hidnplayr | 157 | |
2402 | hidnplayr | 158 | struct STREAM_SOCKET TCP_SOCKET |
1529 | hidnplayr | 159 | |
2402 | hidnplayr | 160 | rcv RING_BUFFER |
161 | snd RING_BUFFER |
||
1529 | hidnplayr | 162 | |
2305 | hidnplayr | 163 | ends |
1529 | hidnplayr | 164 | |
2402 | hidnplayr | 165 | struct socket_queue_entry |
1529 | hidnplayr | 166 | |
2402 | hidnplayr | 167 | data_ptr dd ? |
168 | buf_ptr dd ? |
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169 | data_size dd ? |
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1529 | hidnplayr | 170 | |
1274 | hidnplayr | 171 | ends |
172 | |||
1514 | hidnplayr | 173 | |
2402 | hidnplayr | 174 | SOCKETBUFFSIZE equ 4096 ; in bytes |
1514 | hidnplayr | 175 | |
2402 | hidnplayr | 176 | SOCKET_QUEUE_SIZE equ 10 ; maximum number ofincoming packets queued for 1 socket |
1514 | hidnplayr | 177 | ; the incoming packet queue for sockets is placed in the socket struct itself, at this location from start |
2402 | hidnplayr | 178 | SOCKET_QUEUE_LOCATION equ (SOCKETBUFFSIZE - SOCKET_QUEUE_SIZE*sizeof.socket_queue_entry - sizeof.queue) |
1249 | hidnplayr | 179 | |
1159 | hidnplayr | 180 | uglobal |
2402 | hidnplayr | 181 | net_sockets rd 4 |
182 | last_socket_num dd ? |
||
183 | last_UDP_port dw ? ; These values give the number of the last used ephemeral port |
||
184 | last_TCP_port dw ? ; |
||
1159 | hidnplayr | 185 | endg |
186 | |||
187 | |||
1257 | hidnplayr | 188 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 189 | ; |
190 | ; SOCKET_init |
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191 | ; |
||
1257 | hidnplayr | 192 | ;----------------------------------------------------------------- |
2402 | hidnplayr | 193 | macro SOCKET_init { |
1159 | hidnplayr | 194 | |
2402 | hidnplayr | 195 | xor eax, eax |
196 | mov edi, net_sockets |
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197 | mov ecx, 5 |
||
198 | rep stosd |
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1159 | hidnplayr | 199 | |
1529 | hidnplayr | 200 | @@: |
2402 | hidnplayr | 201 | pseudo_random eax |
202 | cmp ax, MIN_EPHEMERAL_PORT |
||
203 | jb @r |
||
204 | cmp ax, MAX_EPHEMERAL_PORT |
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205 | ja @r |
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206 | mov [last_UDP_port], ax |
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1529 | hidnplayr | 207 | |
208 | @@: |
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2402 | hidnplayr | 209 | pseudo_random eax |
210 | cmp ax, MIN_EPHEMERAL_PORT |
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211 | jb @r |
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212 | cmp ax, MAX_EPHEMERAL_PORT |
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213 | ja @r |
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214 | mov [last_TCP_port], ax |
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1529 | hidnplayr | 215 | |
216 | } |
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217 | |||
218 | |||
1257 | hidnplayr | 219 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 220 | ; |
221 | ; Socket API (function 74) |
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222 | ; |
||
1257 | hidnplayr | 223 | ;----------------------------------------------------------------- |
2301 | hidnplayr | 224 | align 16 |
225 | sock_sysfn_table: |
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2402 | hidnplayr | 226 | dd SOCKET_open ; 0 |
227 | dd SOCKET_close ; 1 |
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228 | dd SOCKET_bind ; 2 |
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229 | dd SOCKET_listen ; 3 |
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230 | dd SOCKET_connect ; 4 |
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231 | dd SOCKET_accept ; 5 |
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232 | dd SOCKET_send ; 6 |
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233 | dd SOCKET_receive ; 7 |
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234 | dd SOCKET_set_opt ; 8 |
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235 | dd SOCKET_get_opt ; 9 |
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2301 | hidnplayr | 236 | |
237 | SOCKET_SYSFUNCS = ($ - sock_sysfn_table)/4 |
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238 | |||
239 | |||
1159 | hidnplayr | 240 | align 4 |
241 | sys_socket: |
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2402 | hidnplayr | 242 | cmp ebx, SOCKET_SYSFUNCS-1 |
243 | ja @f |
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244 | jmp dword [sock_sysfn_table + 4*ebx] |
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1529 | hidnplayr | 245 | @@: |
2402 | hidnplayr | 246 | cmp ebx, 255 |
247 | jz SOCKET_debug |
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1159 | hidnplayr | 248 | |
1529 | hidnplayr | 249 | s_error: |
2402 | hidnplayr | 250 | DEBUGF 1,"socket error\n" |
251 | mov dword [esp+32], -1 |
||
1529 | hidnplayr | 252 | |
2402 | hidnplayr | 253 | ret |
1529 | hidnplayr | 254 | |
1159 | hidnplayr | 255 | |
2301 | hidnplayr | 256 | |
1257 | hidnplayr | 257 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 258 | ; |
259 | ; SOCKET_open |
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260 | ; |
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261 | ; IN: domain in ecx |
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262 | ; type in edx |
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1196 | hidnplayr | 263 | ; protocol in esi |
1159 | hidnplayr | 264 | ; OUT: eax is socket num, -1 on error |
265 | ; |
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1257 | hidnplayr | 266 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 267 | align 4 |
1514 | hidnplayr | 268 | SOCKET_open: |
1159 | hidnplayr | 269 | |
2402 | hidnplayr | 270 | DEBUGF 1,"SOCKET_open: domain: %u, type: %u protocol: %x\n", ecx, edx, esi |
1159 | hidnplayr | 271 | |
2402 | hidnplayr | 272 | push ecx edx esi |
273 | call SOCKET_alloc |
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274 | pop esi edx ecx |
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275 | jz s_error |
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1159 | hidnplayr | 276 | |
2402 | hidnplayr | 277 | mov [esp+32], edi ; return socketnumber |
1542 | hidnplayr | 278 | |
2402 | hidnplayr | 279 | mov [eax + SOCKET.Domain], ecx |
280 | mov [eax + SOCKET.Type], edx |
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281 | mov [eax + SOCKET.Protocol], esi |
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1159 | hidnplayr | 282 | |
2402 | hidnplayr | 283 | cmp ecx, AF_INET4 |
284 | jne .no_inet4 |
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1529 | hidnplayr | 285 | |
2402 | hidnplayr | 286 | cmp edx, SOCK_DGRAM |
287 | je .udp |
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1536 | hidnplayr | 288 | |
2402 | hidnplayr | 289 | cmp edx, SOCK_STREAM |
290 | je .tcp |
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1529 | hidnplayr | 291 | |
2402 | hidnplayr | 292 | cmp edx, SOCK_RAW |
293 | je .raw |
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1541 | hidnplayr | 294 | |
1536 | hidnplayr | 295 | .no_inet4: |
2402 | hidnplayr | 296 | ret |
1536 | hidnplayr | 297 | |
1542 | hidnplayr | 298 | align 4 |
299 | .raw: |
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2402 | hidnplayr | 300 | test esi, esi ; IP_PROTO_IP |
301 | jz .ip |
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1529 | hidnplayr | 302 | |
2402 | hidnplayr | 303 | cmp esi, IP_PROTO_ICMP |
304 | je .icmp |
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1529 | hidnplayr | 305 | |
2402 | hidnplayr | 306 | cmp esi, IP_PROTO_UDP |
307 | je .udp |
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1533 | hidnplayr | 308 | |
2402 | hidnplayr | 309 | cmp esi, IP_PROTO_TCP |
310 | je .tcp |
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1536 | hidnplayr | 311 | |
2402 | hidnplayr | 312 | ret |
1159 | hidnplayr | 313 | |
1542 | hidnplayr | 314 | align 4 |
1536 | hidnplayr | 315 | .udp: |
2402 | hidnplayr | 316 | mov [eax + SOCKET.Protocol], IP_PROTO_UDP |
317 | mov [eax + SOCKET.snd_proc], SOCKET_send_udp |
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318 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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319 | ret |
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1529 | hidnplayr | 320 | |
1542 | hidnplayr | 321 | align 4 |
322 | .tcp: |
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2402 | hidnplayr | 323 | mov [eax + SOCKET.Protocol], IP_PROTO_TCP |
324 | mov [eax + SOCKET.snd_proc], SOCKET_send_tcp |
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325 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_tcp |
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1838 | hidnplayr | 326 | |
2402 | hidnplayr | 327 | mov [eax + TCP_SOCKET.t_maxseg], 1480 ;;;;; FIXME |
328 | ret |
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1529 | hidnplayr | 329 | |
330 | |||
1543 | hidnplayr | 331 | align 4 |
332 | .ip: |
||
2402 | hidnplayr | 333 | mov [eax + SOCKET.snd_proc], SOCKET_send_ip |
334 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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335 | ret |
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1541 | hidnplayr | 336 | |
1542 | hidnplayr | 337 | |
338 | align 4 |
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1541 | hidnplayr | 339 | .icmp: |
2402 | hidnplayr | 340 | mov [eax + SOCKET.snd_proc], SOCKET_send_icmp |
341 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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342 | ret |
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1541 | hidnplayr | 343 | |
344 | |||
345 | |||
1257 | hidnplayr | 346 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 347 | ; |
348 | ; SOCKET_bind |
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349 | ; |
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350 | ; IN: socket number in ecx |
||
351 | ; pointer to sockaddr struct in edx |
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352 | ; length of that struct in esi |
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353 | ; OUT: 0 on success |
||
354 | ; |
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1257 | hidnplayr | 355 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 356 | align 4 |
1514 | hidnplayr | 357 | SOCKET_bind: |
1159 | hidnplayr | 358 | |
2402 | hidnplayr | 359 | DEBUGF 1,"socket_bind: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi |
1159 | hidnplayr | 360 | |
2402 | hidnplayr | 361 | call SOCKET_num_to_ptr |
362 | jz s_error |
||
1159 | hidnplayr | 363 | |
2402 | hidnplayr | 364 | cmp esi, 2 |
365 | jb s_error |
||
1159 | hidnplayr | 366 | |
2402 | hidnplayr | 367 | cmp word [edx], AF_INET4 |
368 | je .af_inet4 |
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1159 | hidnplayr | 369 | |
2402 | hidnplayr | 370 | cmp word [edx], AF_UNIX |
371 | je .af_unix |
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1249 | hidnplayr | 372 | |
2402 | hidnplayr | 373 | jmp s_error |
1249 | hidnplayr | 374 | |
375 | .af_unix: |
||
2402 | hidnplayr | 376 | ; TODO: write code here |
1249 | hidnplayr | 377 | |
2402 | hidnplayr | 378 | mov dword [esp+32], 0 |
379 | ret |
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1249 | hidnplayr | 380 | |
1159 | hidnplayr | 381 | .af_inet4: |
382 | |||
2402 | hidnplayr | 383 | DEBUGF 1,"af_inet4\n" |
1514 | hidnplayr | 384 | |
2402 | hidnplayr | 385 | cmp esi, 6 |
386 | jb s_error |
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1159 | hidnplayr | 387 | |
2402 | hidnplayr | 388 | pushw [edx + 2] |
389 | pop [eax + UDP_SOCKET.LocalPort] |
||
1159 | hidnplayr | 390 | |
2402 | hidnplayr | 391 | pushd [edx + 4] |
392 | pop [eax + IP_SOCKET.LocalIP] |
||
1159 | hidnplayr | 393 | |
2402 | hidnplayr | 394 | DEBUGF 1,"local ip: %u.%u.%u.%u\n",\ |
395 | [eax + IP_SOCKET.LocalIP + 0]:1,[eax + IP_SOCKET.LocalIP + 1]:1,\ |
||
396 | [eax + IP_SOCKET.LocalIP + 2]:1,[eax + IP_SOCKET.LocalIP + 3]:1 |
||
1159 | hidnplayr | 397 | |
2402 | hidnplayr | 398 | mov dword [esp+32], 0 |
399 | ret |
||
1159 | hidnplayr | 400 | |
401 | |||
402 | |||
403 | |||
1257 | hidnplayr | 404 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 405 | ; |
406 | ; SOCKET_connect |
||
407 | ; |
||
408 | ; IN: socket number in ecx |
||
409 | ; pointer to sockaddr struct in edx |
||
410 | ; length of that struct in esi |
||
411 | ; OUT: 0 on success |
||
412 | ; |
||
1257 | hidnplayr | 413 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 414 | align 4 |
1514 | hidnplayr | 415 | SOCKET_connect: |
1159 | hidnplayr | 416 | |
2402 | hidnplayr | 417 | DEBUGF 1,"SOCKET_connect: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi |
1159 | hidnplayr | 418 | |
2402 | hidnplayr | 419 | call SOCKET_num_to_ptr |
420 | jz s_error |
||
1159 | hidnplayr | 421 | |
2402 | hidnplayr | 422 | cmp esi, 8 |
423 | jb s_error |
||
1159 | hidnplayr | 424 | |
2402 | hidnplayr | 425 | cmp word [edx], AF_INET4 |
426 | je .af_inet4 |
||
1159 | hidnplayr | 427 | |
2402 | hidnplayr | 428 | jmp s_error |
1159 | hidnplayr | 429 | |
430 | .af_inet4: |
||
2402 | hidnplayr | 431 | cmp [eax + IP_SOCKET.LocalIP], 0 |
432 | jne @f |
||
433 | push [IP_LIST] |
||
434 | pop [eax + IP_SOCKET.LocalIP] |
||
1543 | hidnplayr | 435 | @@: |
1159 | hidnplayr | 436 | |
2402 | hidnplayr | 437 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
438 | je .udp |
||
1159 | hidnplayr | 439 | |
2402 | hidnplayr | 440 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
441 | je .tcp |
||
1159 | hidnplayr | 442 | |
2402 | hidnplayr | 443 | cmp [eax + SOCKET.Protocol], IP_PROTO_IP |
444 | je .ip |
||
1541 | hidnplayr | 445 | |
2402 | hidnplayr | 446 | cmp [eax + SOCKET.Protocol], IP_PROTO_ICMP |
447 | je .ip |
||
1542 | hidnplayr | 448 | |
2402 | hidnplayr | 449 | jmp s_error |
1159 | hidnplayr | 450 | |
1542 | hidnplayr | 451 | align 4 |
1254 | hidnplayr | 452 | .udp: |
2402 | hidnplayr | 453 | pusha |
454 | lea ecx, [eax + SOCKET.mutex] |
||
455 | call mutex_lock |
||
456 | popa |
||
1543 | hidnplayr | 457 | |
2402 | hidnplayr | 458 | pushw [edx + 2] |
459 | pop [eax + UDP_SOCKET.RemotePort] |
||
1543 | hidnplayr | 460 | |
2402 | hidnplayr | 461 | pushd [edx + 4] |
462 | pop [eax + IP_SOCKET.RemoteIP] |
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1543 | hidnplayr | 463 | |
2402 | hidnplayr | 464 | cmp [eax + UDP_SOCKET.LocalPort], 0 |
465 | jne @f |
||
466 | call SOCKET_find_port |
||
1543 | hidnplayr | 467 | @@: |
468 | |||
2402 | hidnplayr | 469 | mov [eax + UDP_SOCKET.firstpacket], 0 |
1159 | hidnplayr | 470 | |
2402 | hidnplayr | 471 | push eax |
472 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue |
||
473 | pop eax |
||
1159 | hidnplayr | 474 | |
2402 | hidnplayr | 475 | lea ecx, [eax + SOCKET.mutex] |
476 | call mutex_unlock |
||
1159 | hidnplayr | 477 | |
2402 | hidnplayr | 478 | mov dword [esp+32], 0 |
479 | ret |
||
480 | |||
1542 | hidnplayr | 481 | align 4 |
1254 | hidnplayr | 482 | .tcp: |
2402 | hidnplayr | 483 | pusha |
484 | lea ecx, [eax + SOCKET.mutex] |
||
485 | call mutex_lock |
||
486 | popa |
||
1159 | hidnplayr | 487 | |
2402 | hidnplayr | 488 | pushw [edx + 2] |
489 | pop [eax + TCP_SOCKET.RemotePort] |
||
1159 | hidnplayr | 490 | |
2402 | hidnplayr | 491 | pushd [edx + 4] |
492 | pop [eax + IP_SOCKET.RemoteIP] |
||
1159 | hidnplayr | 493 | |
2402 | hidnplayr | 494 | cmp [eax + TCP_SOCKET.LocalPort], 0 |
495 | jne @f |
||
496 | call SOCKET_find_port |
||
1543 | hidnplayr | 497 | @@: |
1159 | hidnplayr | 498 | |
2402 | hidnplayr | 499 | mov [eax + TCP_SOCKET.timer_persist], 0 |
500 | mov [eax + TCP_SOCKET.t_state], TCPS_SYN_SENT |
||
501 | push [TCP_sequence_num] |
||
502 | add [TCP_sequence_num], 6400 |
||
503 | pop [eax + TCP_SOCKET.ISS] |
||
504 | mov [eax + TCP_SOCKET.timer_keepalive], TCP_time_keep_init |
||
1519 | hidnplayr | 505 | |
2402 | hidnplayr | 506 | TCP_sendseqinit eax |
1529 | hidnplayr | 507 | |
1543 | hidnplayr | 508 | ; mov [ebx + TCP_SOCKET.timer_retransmission], ;; todo: create macro to set retransmission timer |
1533 | hidnplayr | 509 | |
2402 | hidnplayr | 510 | mov ebx, eax |
1159 | hidnplayr | 511 | |
2402 | hidnplayr | 512 | lea eax, [ebx + STREAM_SOCKET.snd] |
513 | call SOCKET_ring_create |
||
1543 | hidnplayr | 514 | |
2402 | hidnplayr | 515 | lea eax, [ebx + STREAM_SOCKET.rcv] |
516 | call SOCKET_ring_create |
||
1543 | hidnplayr | 517 | |
2402 | hidnplayr | 518 | pusha |
2403 | hidnplayr | 519 | lea ecx, [eax + SOCKET.mutex] |
2402 | hidnplayr | 520 | call mutex_unlock |
521 | popa |
||
1733 | hidnplayr | 522 | |
2402 | hidnplayr | 523 | mov eax, ebx |
524 | call TCP_output |
||
1733 | hidnplayr | 525 | |
2402 | hidnplayr | 526 | mov dword [esp+32], 0 |
527 | ret |
||
1159 | hidnplayr | 528 | |
1542 | hidnplayr | 529 | align 4 |
530 | .ip: |
||
2402 | hidnplayr | 531 | pusha |
532 | lea ecx, [eax + SOCKET.mutex] |
||
533 | call mutex_lock |
||
534 | popa |
||
1543 | hidnplayr | 535 | |
2402 | hidnplayr | 536 | pushd [edx + 4] |
537 | pop [eax + IP_SOCKET.RemoteIP] |
||
1159 | hidnplayr | 538 | |
2402 | hidnplayr | 539 | push eax |
540 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue |
||
541 | pop eax |
||
1543 | hidnplayr | 542 | |
2402 | hidnplayr | 543 | lea ecx, [eax + SOCKET.mutex] |
544 | call mutex_unlock |
||
1541 | hidnplayr | 545 | |
2402 | hidnplayr | 546 | mov dword [esp+32], 0 |
547 | ret |
||
1541 | hidnplayr | 548 | |
2402 | hidnplayr | 549 | |
1257 | hidnplayr | 550 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 551 | ; |
552 | ; SOCKET_listen |
||
553 | ; |
||
554 | ; IN: socket number in ecx |
||
555 | ; backlog in edx |
||
556 | ; OUT: eax is socket num, -1 on error |
||
557 | ; |
||
1257 | hidnplayr | 558 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 559 | align 4 |
1514 | hidnplayr | 560 | SOCKET_listen: |
1159 | hidnplayr | 561 | |
2402 | hidnplayr | 562 | DEBUGF 1,"SOCKET_listen: socknum: %u backlog: %u\n", ecx, edx |
1159 | hidnplayr | 563 | |
2402 | hidnplayr | 564 | call SOCKET_num_to_ptr |
565 | jz s_error |
||
1159 | hidnplayr | 566 | |
2402 | hidnplayr | 567 | cmp [eax + SOCKET.Domain], AF_INET4 |
568 | jne s_error |
||
1254 | hidnplayr | 569 | |
2402 | hidnplayr | 570 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
571 | jne s_error |
||
1254 | hidnplayr | 572 | |
2402 | hidnplayr | 573 | cmp [eax + TCP_SOCKET.LocalPort], 0 |
574 | je s_error |
||
1514 | hidnplayr | 575 | |
2402 | hidnplayr | 576 | cmp [eax + IP_SOCKET.LocalIP], 0 |
577 | jne @f |
||
578 | push [IP_LIST] |
||
579 | pop [eax + IP_SOCKET.LocalIP] |
||
1543 | hidnplayr | 580 | @@: |
581 | |||
2402 | hidnplayr | 582 | cmp edx, MAX_backlog |
583 | jbe @f |
||
584 | mov edx, MAX_backlog |
||
1543 | hidnplayr | 585 | @@: |
1159 | hidnplayr | 586 | |
2402 | hidnplayr | 587 | mov [eax + SOCKET.backlog], dx |
588 | or [eax + SOCKET.options], SO_ACCEPTCON |
||
589 | mov [eax + TCP_SOCKET.t_state], TCPS_LISTEN |
||
1159 | hidnplayr | 590 | |
2402 | hidnplayr | 591 | push eax |
592 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up sockets queue |
||
593 | pop eax |
||
1543 | hidnplayr | 594 | |
2402 | hidnplayr | 595 | mov dword [esp+32], 0 |
1514 | hidnplayr | 596 | |
2402 | hidnplayr | 597 | ret |
1159 | hidnplayr | 598 | |
599 | |||
1257 | hidnplayr | 600 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 601 | ; |
602 | ; SOCKET_accept |
||
603 | ; |
||
604 | ; IN: socket number in ecx |
||
605 | ; addr in edx |
||
606 | ; addrlen in esi |
||
607 | ; OUT: eax is socket num, -1 on error |
||
608 | ; |
||
1257 | hidnplayr | 609 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 610 | align 4 |
1514 | hidnplayr | 611 | SOCKET_accept: |
1159 | hidnplayr | 612 | |
2402 | hidnplayr | 613 | DEBUGF 1,"SOCKET_accept: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi |
1159 | hidnplayr | 614 | |
2402 | hidnplayr | 615 | call SOCKET_num_to_ptr |
616 | jz s_error |
||
1159 | hidnplayr | 617 | |
2402 | hidnplayr | 618 | test [eax + SOCKET.options], SO_ACCEPTCON |
619 | jz s_error |
||
1543 | hidnplayr | 620 | |
2402 | hidnplayr | 621 | cmp [eax + SOCKET.Domain], AF_INET4 |
622 | jne s_error |
||
1249 | hidnplayr | 623 | |
2402 | hidnplayr | 624 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
625 | jne s_error |
||
1249 | hidnplayr | 626 | |
2402 | hidnplayr | 627 | get_from_queue (eax + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, s_error |
2572 | hidnplayr | 628 | mov eax, [esi] |
1249 | hidnplayr | 629 | |
2572 | hidnplayr | 630 | ; Change PID to that of the current process |
631 | mov ebx, [TASK_BASE] |
||
632 | mov ebx, [ebx + TASKDATA.pid] |
||
633 | mov [eax + SOCKET.PID], ebx |
||
634 | |||
2402 | hidnplayr | 635 | call SOCKET_ptr_to_num |
636 | jz s_error |
||
637 | mov [esp+32], eax |
||
638 | ret |
||
1514 | hidnplayr | 639 | |
1159 | hidnplayr | 640 | |
1257 | hidnplayr | 641 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 642 | ; |
643 | ; SOCKET_close |
||
644 | ; |
||
645 | ; IN: socket number in ecx |
||
646 | ; OUT: eax is socket num, -1 on error |
||
647 | ; |
||
1257 | hidnplayr | 648 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 649 | align 4 |
1514 | hidnplayr | 650 | SOCKET_close: |
1159 | hidnplayr | 651 | |
2402 | hidnplayr | 652 | DEBUGF 1,"SOCKET_close: socknum: %u\n", ecx |
1159 | hidnplayr | 653 | |
2402 | hidnplayr | 654 | call SOCKET_num_to_ptr |
655 | jz s_error |
||
1159 | hidnplayr | 656 | |
2402 | hidnplayr | 657 | cmp [eax + SOCKET.Domain], AF_INET4 |
658 | jne s_error |
||
1159 | hidnplayr | 659 | |
2402 | hidnplayr | 660 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
661 | je .free |
||
1159 | hidnplayr | 662 | |
2402 | hidnplayr | 663 | cmp [eax + SOCKET.Protocol], IP_PROTO_ICMP |
664 | je .free |
||
1159 | hidnplayr | 665 | |
2402 | hidnplayr | 666 | cmp [eax + SOCKET.Protocol], IP_PROTO_IP |
667 | je .free |
||
1542 | hidnplayr | 668 | |
2402 | hidnplayr | 669 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
670 | je .tcp |
||
1159 | hidnplayr | 671 | |
2402 | hidnplayr | 672 | jmp s_error |
1159 | hidnplayr | 673 | |
674 | .tcp: |
||
2402 | hidnplayr | 675 | cmp [eax + TCP_SOCKET.t_state], TCPS_SYN_RECEIVED ; state must be LISTEN, SYN_SENT or CLOSED |
676 | jb .free |
||
1318 | hidnplayr | 677 | |
2541 | hidnplayr | 678 | call TCP_drop |
2402 | hidnplayr | 679 | mov dword [esp+32], 0 |
1159 | hidnplayr | 680 | |
2402 | hidnplayr | 681 | ret |
1159 | hidnplayr | 682 | |
1514 | hidnplayr | 683 | .free: |
2402 | hidnplayr | 684 | call SOCKET_free |
685 | mov dword [esp+32], 0 |
||
1159 | hidnplayr | 686 | |
2402 | hidnplayr | 687 | ret |
1159 | hidnplayr | 688 | |
689 | |||
1257 | hidnplayr | 690 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 691 | ; |
692 | ; SOCKET_receive |
||
693 | ; |
||
694 | ; IN: socket number in ecx |
||
1249 | hidnplayr | 695 | ; addr to buffer in edx |
696 | ; length of buffer in esi |
||
1159 | hidnplayr | 697 | ; flags in edi |
698 | ; OUT: eax is number of bytes copied, -1 on error |
||
699 | ; |
||
1257 | hidnplayr | 700 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 701 | align 4 |
1514 | hidnplayr | 702 | SOCKET_receive: |
1159 | hidnplayr | 703 | |
2402 | hidnplayr | 704 | DEBUGF 1,"SOCKET_receive: socknum: %u bufaddr: %x, buflength: %u, flags: %x, ", ecx, edx, esi, edi |
1514 | hidnplayr | 705 | |
2402 | hidnplayr | 706 | call SOCKET_num_to_ptr |
707 | jz s_error |
||
1159 | hidnplayr | 708 | |
2402 | hidnplayr | 709 | jmp [eax + SOCKET.rcv_proc] |
1533 | hidnplayr | 710 | |
1536 | hidnplayr | 711 | |
712 | align 4 |
||
1541 | hidnplayr | 713 | SOCKET_receive_dgram: |
1536 | hidnplayr | 714 | |
2402 | hidnplayr | 715 | DEBUGF 1,"SOCKET_receive: DGRAM\n" |
1536 | hidnplayr | 716 | |
2402 | hidnplayr | 717 | mov ebx, esi |
718 | mov edi, edx ; addr to buffer |
||
1159 | hidnplayr | 719 | |
2402 | hidnplayr | 720 | get_from_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, s_error ; destroys esi and ecx |
1536 | hidnplayr | 721 | |
2402 | hidnplayr | 722 | mov ecx, [esi + socket_queue_entry.data_size] |
723 | DEBUGF 1,"Got %u bytes of data\n", ecx |
||
1159 | hidnplayr | 724 | |
2402 | hidnplayr | 725 | cmp ecx, ebx |
726 | ja .too_small |
||
1514 | hidnplayr | 727 | |
2402 | hidnplayr | 728 | push [esi + socket_queue_entry.buf_ptr] ; save the buffer addr so we can clear it later |
729 | mov esi, [esi + socket_queue_entry.data_ptr] |
||
730 | DEBUGF 1,"Source buffer: %x, real addr: %x\n", [esp], esi |
||
731 | mov [esp+32+4], ecx ; return number of bytes copied |
||
1159 | hidnplayr | 732 | |
1514 | hidnplayr | 733 | ; copy the data |
2402 | hidnplayr | 734 | shr ecx, 1 |
735 | jnc .nb |
||
736 | movsb |
||
1536 | hidnplayr | 737 | .nb: |
2402 | hidnplayr | 738 | shr ecx, 1 |
739 | jnc .nw |
||
740 | movsw |
||
1536 | hidnplayr | 741 | .nw: |
2402 | hidnplayr | 742 | test ecx, ecx |
743 | jz .nd |
||
744 | rep movsd |
||
1536 | hidnplayr | 745 | .nd: |
1159 | hidnplayr | 746 | |
2402 | hidnplayr | 747 | call kernel_free ; remove the packet |
748 | ret |
||
1514 | hidnplayr | 749 | |
1536 | hidnplayr | 750 | .too_small: |
1533 | hidnplayr | 751 | |
2402 | hidnplayr | 752 | DEBUGF 1,"Buffer too small...\n" |
753 | jmp s_error |
||
1536 | hidnplayr | 754 | |
755 | align 4 |
||
756 | SOCKET_receive_tcp: |
||
757 | |||
2402 | hidnplayr | 758 | DEBUGF 1,"SOCKET_receive: TCP\n" |
1536 | hidnplayr | 759 | |
2402 | hidnplayr | 760 | mov ecx, esi |
761 | mov edi, edx |
||
762 | add eax, STREAM_SOCKET.rcv |
||
763 | call SOCKET_ring_read |
||
764 | call SOCKET_ring_free |
||
1533 | hidnplayr | 765 | |
2402 | hidnplayr | 766 | mov [esp+32], ecx ; return number of bytes copied |
1533 | hidnplayr | 767 | |
2402 | hidnplayr | 768 | ret |
1159 | hidnplayr | 769 | |
770 | |||
1257 | hidnplayr | 771 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 772 | ; |
773 | ; SOCKET_send |
||
774 | ; |
||
775 | ; |
||
776 | ; IN: socket number in ecx |
||
1206 | hidnplayr | 777 | ; pointer to data in edx |
778 | ; datalength in esi |
||
1159 | hidnplayr | 779 | ; flags in edi |
780 | ; OUT: -1 on error |
||
781 | ; |
||
1257 | hidnplayr | 782 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 783 | align 4 |
1514 | hidnplayr | 784 | SOCKET_send: |
1159 | hidnplayr | 785 | |
2402 | hidnplayr | 786 | DEBUGF 1,"SOCKET_send: socknum: %u data ptr: %x, length: %u, flags: %x, ", ecx, edx, esi, edi |
1159 | hidnplayr | 787 | |
2402 | hidnplayr | 788 | call SOCKET_num_to_ptr |
789 | jz s_error |
||
1159 | hidnplayr | 790 | |
2402 | hidnplayr | 791 | mov ecx, esi |
792 | mov esi, edx |
||
1763 | hidnplayr | 793 | |
2402 | hidnplayr | 794 | jmp [eax + SOCKET.snd_proc] |
1206 | hidnplayr | 795 | |
796 | |||
1536 | hidnplayr | 797 | align 4 |
798 | SOCKET_send_udp: |
||
1529 | hidnplayr | 799 | |
2402 | hidnplayr | 800 | DEBUGF 1,"SOCKET_send: UDP\n" |
1159 | hidnplayr | 801 | |
2573 | hidnplayr | 802 | mov [esp+32], ecx |
2402 | hidnplayr | 803 | call UDP_output |
2573 | hidnplayr | 804 | cmp eax, -1 |
805 | je s_error |
||
2402 | hidnplayr | 806 | ret |
1159 | hidnplayr | 807 | |
808 | |||
1536 | hidnplayr | 809 | align 4 |
810 | SOCKET_send_tcp: |
||
1254 | hidnplayr | 811 | |
2402 | hidnplayr | 812 | DEBUGF 1,"SOCKET_send: TCP\n" |
1254 | hidnplayr | 813 | |
2402 | hidnplayr | 814 | push eax |
815 | add eax, STREAM_SOCKET.snd |
||
816 | call SOCKET_ring_write |
||
2573 | hidnplayr | 817 | mov [esp+32], ecx |
2402 | hidnplayr | 818 | pop eax |
1536 | hidnplayr | 819 | |
2573 | hidnplayr | 820 | test ecx, ecx |
821 | jz s_error |
||
822 | |||
2402 | hidnplayr | 823 | call TCP_output |
824 | ret |
||
1159 | hidnplayr | 825 | |
1249 | hidnplayr | 826 | |
1543 | hidnplayr | 827 | align 4 |
828 | SOCKET_send_ip: |
||
1249 | hidnplayr | 829 | |
2402 | hidnplayr | 830 | DEBUGF 1,"type: IP\n" |
1543 | hidnplayr | 831 | |
2573 | hidnplayr | 832 | mov [esp+32], ecx |
2402 | hidnplayr | 833 | call IPv4_output_raw |
2573 | hidnplayr | 834 | cmp eax, -1 |
835 | je s_error |
||
2402 | hidnplayr | 836 | ret |
1543 | hidnplayr | 837 | |
2573 | hidnplayr | 838 | |
1541 | hidnplayr | 839 | align 4 |
840 | SOCKET_send_icmp: |
||
1249 | hidnplayr | 841 | |
2402 | hidnplayr | 842 | DEBUGF 1,"SOCKET_send: ICMP\n" |
1541 | hidnplayr | 843 | |
2573 | hidnplayr | 844 | mov [esp+32], ecx |
2402 | hidnplayr | 845 | call ICMP_output_raw |
2573 | hidnplayr | 846 | cmp eax, -1 |
847 | je s_error |
||
2402 | hidnplayr | 848 | ret |
1541 | hidnplayr | 849 | |
850 | |||
851 | |||
852 | |||
1257 | hidnplayr | 853 | ;----------------------------------------------------------------- |
1256 | clevermous | 854 | ; |
1257 | hidnplayr | 855 | ; SOCKET_get_options |
1256 | clevermous | 856 | ; |
1514 | hidnplayr | 857 | ; IN: ecx = socket number |
858 | ; edx = pointer to the options: |
||
1257 | hidnplayr | 859 | ; dd level, optname, optval, optlen |
1256 | clevermous | 860 | ; OUT: -1 on error |
861 | ; |
||
862 | ; At moment, uses only pseudo-optname -2 for get last_ack_number for TCP. |
||
863 | ; TODO: find best way to notify that send()'ed data were acknowledged |
||
1831 | hidnplayr | 864 | ; Also pseudo-optname -3 is valid and returns socket state, one of TCPS_*. |
1256 | clevermous | 865 | ; |
1257 | hidnplayr | 866 | ;----------------------------------------------------------------- |
867 | align 4 |
||
1514 | hidnplayr | 868 | SOCKET_get_opt: |
1257 | hidnplayr | 869 | |
2402 | hidnplayr | 870 | DEBUGF 1,"SOCKET_get_opt\n" |
1514 | hidnplayr | 871 | |
2402 | hidnplayr | 872 | call SOCKET_num_to_ptr |
873 | jz s_error |
||
1514 | hidnplayr | 874 | |
2402 | hidnplayr | 875 | cmp dword [edx], IP_PROTO_TCP |
876 | jne s_error |
||
877 | cmp dword [edx+4], -2 |
||
878 | je @f |
||
879 | cmp dword [edx+4], -3 |
||
880 | jne s_error |
||
1299 | clevermous | 881 | @@: |
1514 | hidnplayr | 882 | ; mov eax, [edx+12] |
883 | ; test eax, eax |
||
884 | ; jz .fail |
||
885 | ; cmp dword [eax], 4 |
||
886 | ; mov dword [eax], 4 |
||
887 | ; jb .fail |
||
888 | ; stdcall net_socket_num_to_addr, ecx |
||
889 | ; test eax, eax |
||
890 | ; jz .fail |
||
891 | ; ; todo: check that eax is really TCP socket |
||
892 | ; mov ecx, [eax + TCP_SOCKET.last_ack_number] |
||
893 | ; cmp dword [edx+4], -2 |
||
894 | ; jz @f |
||
895 | ; mov ecx, [eax + TCP_SOCKET.state] |
||
1299 | clevermous | 896 | @@: |
2402 | hidnplayr | 897 | mov eax, [edx+8] |
898 | test eax, eax |
||
899 | jz @f |
||
900 | mov [eax], ecx |
||
1256 | clevermous | 901 | @@: |
2402 | hidnplayr | 902 | mov dword [esp+32], 0 |
903 | ret |
||
1159 | hidnplayr | 904 | |
905 | |||
1529 | hidnplayr | 906 | |
1542 | hidnplayr | 907 | |
908 | align 4 |
||
909 | SOCKET_set_opt: |
||
910 | |||
2402 | hidnplayr | 911 | ret |
1542 | hidnplayr | 912 | |
913 | |||
914 | |||
1257 | hidnplayr | 915 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 916 | ; |
1529 | hidnplayr | 917 | ; SOCKET_debug |
918 | ; |
||
919 | ; Copies socket variables to application buffer |
||
920 | ; |
||
921 | ; IN: ecx = socket number |
||
922 | ; edx = pointer to buffer |
||
923 | ; |
||
924 | ; OUT: -1 on error |
||
925 | ;----------------------------------------------------------------- |
||
926 | align 4 |
||
927 | SOCKET_debug: |
||
928 | |||
2402 | hidnplayr | 929 | DEBUGF 1,"socket_debug\n" |
1529 | hidnplayr | 930 | |
2402 | hidnplayr | 931 | call SOCKET_num_to_ptr |
932 | jz s_error |
||
1529 | hidnplayr | 933 | |
2402 | hidnplayr | 934 | mov esi, eax |
935 | mov edi, edx |
||
936 | mov ecx, SOCKETBUFFSIZE/4 |
||
937 | rep movsd |
||
1529 | hidnplayr | 938 | |
2402 | hidnplayr | 939 | mov dword [esp+32], 0 |
940 | ret |
||
1529 | hidnplayr | 941 | |
942 | |||
943 | ;----------------------------------------------------------------- |
||
944 | ; |
||
1514 | hidnplayr | 945 | ; SOCKET_find_port |
1206 | hidnplayr | 946 | ; |
1514 | hidnplayr | 947 | ; Fills in the local port number for TCP and UDP sockets |
948 | ; This procedure always works because the number of sockets is |
||
949 | ; limited to a smaller number then the number of possible ports |
||
1206 | hidnplayr | 950 | ; |
1514 | hidnplayr | 951 | ; IN: eax = socket pointer |
952 | ; OUT: / |
||
1206 | hidnplayr | 953 | ; |
1257 | hidnplayr | 954 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 955 | align 4 |
1514 | hidnplayr | 956 | SOCKET_find_port: |
1159 | hidnplayr | 957 | |
2402 | hidnplayr | 958 | DEBUGF 1,"SOCKET_find_port\n" |
1159 | hidnplayr | 959 | |
2402 | hidnplayr | 960 | push ebx esi ecx |
1514 | hidnplayr | 961 | |
2402 | hidnplayr | 962 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
963 | je .udp |
||
1159 | hidnplayr | 964 | |
2402 | hidnplayr | 965 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
966 | je .tcp |
||
1159 | hidnplayr | 967 | |
2402 | hidnplayr | 968 | jmp .error |
1514 | hidnplayr | 969 | |
970 | .done: |
||
2402 | hidnplayr | 971 | mov [eax + UDP_SOCKET.LocalPort], bx |
1514 | hidnplayr | 972 | .error: |
2402 | hidnplayr | 973 | pop ecx esi ebx |
974 | ret |
||
1514 | hidnplayr | 975 | |
1206 | hidnplayr | 976 | .udp: |
2402 | hidnplayr | 977 | mov bx, [last_UDP_port] |
978 | call .findit |
||
979 | mov [last_UDP_port], bx |
||
980 | jmp .done |
||
1206 | hidnplayr | 981 | |
982 | .tcp: |
||
2402 | hidnplayr | 983 | mov bx, [last_TCP_port] |
984 | call .findit |
||
985 | mov [last_TCP_port], bx |
||
986 | jmp .done |
||
1206 | hidnplayr | 987 | |
988 | |||
1514 | hidnplayr | 989 | .restart: |
2402 | hidnplayr | 990 | mov bx, MIN_EPHEMERAL_PORT |
1514 | hidnplayr | 991 | .findit: |
2402 | hidnplayr | 992 | inc bx |
1206 | hidnplayr | 993 | |
2402 | hidnplayr | 994 | cmp bx, MAX_EPHEMERAL_PORT |
995 | jz .restart |
||
1206 | hidnplayr | 996 | |
2402 | hidnplayr | 997 | call SOCKET_check_port |
998 | jz .findit |
||
1206 | hidnplayr | 999 | |
2402 | hidnplayr | 1000 | ret |
1206 | hidnplayr | 1001 | |
1257 | hidnplayr | 1002 | |
1003 | |||
1004 | ;----------------------------------------------------------------- |
||
1206 | hidnplayr | 1005 | ; |
1542 | hidnplayr | 1006 | ; SOCKET_check_port (to be used with AF_INET only!) |
1206 | hidnplayr | 1007 | ; |
1514 | hidnplayr | 1008 | ; Checks if a local port number is unused |
1009 | ; If the proposed port number is unused, it is filled in in the socket structure |
||
1206 | hidnplayr | 1010 | ; |
1514 | hidnplayr | 1011 | ; IN: eax = socket ptr (to find out if its a TCP/UDP socket) |
1012 | ; bx = proposed socket number |
||
1206 | hidnplayr | 1013 | ; |
1514 | hidnplayr | 1014 | ; OUT: ZF = cleared on error |
1015 | ; |
||
1257 | hidnplayr | 1016 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 1017 | align 4 |
1514 | hidnplayr | 1018 | SOCKET_check_port: |
1019 | |||
2402 | hidnplayr | 1020 | DEBUGF 1,"SOCKET_check_port\n" |
1514 | hidnplayr | 1021 | |
2402 | hidnplayr | 1022 | mov ecx, [eax + SOCKET.Protocol] |
1023 | mov esi, net_sockets |
||
1206 | hidnplayr | 1024 | |
1025 | .next_socket: |
||
2402 | hidnplayr | 1026 | mov esi, [esi + SOCKET.NextPtr] |
1027 | or esi, esi |
||
1028 | jz .port_ok |
||
1206 | hidnplayr | 1029 | |
2402 | hidnplayr | 1030 | cmp [esi + SOCKET.Protocol], ecx |
1031 | jne .next_socket |
||
1206 | hidnplayr | 1032 | |
2402 | hidnplayr | 1033 | cmp [esi + UDP_SOCKET.LocalPort], bx |
1034 | jne .next_socket |
||
1206 | hidnplayr | 1035 | |
2402 | hidnplayr | 1036 | DEBUGF 1,"local port %u already in use\n", bx |
1037 | ret |
||
1206 | hidnplayr | 1038 | |
1039 | .port_ok: |
||
2402 | hidnplayr | 1040 | mov [eax + UDP_SOCKET.LocalPort], bx |
1041 | or bx, bx ; set the zero-flag |
||
1514 | hidnplayr | 1042 | |
2402 | hidnplayr | 1043 | ret |
1206 | hidnplayr | 1044 | |
1045 | |||
1257 | hidnplayr | 1046 | |
1047 | ;----------------------------------------------------------------- |
||
1206 | hidnplayr | 1048 | ; |
1514 | hidnplayr | 1049 | ; SOCKET_input |
1206 | hidnplayr | 1050 | ; |
1536 | hidnplayr | 1051 | ; Updates a (stateless) socket with received data |
1206 | hidnplayr | 1052 | ; |
1514 | hidnplayr | 1053 | ; Note: the mutex should already be set ! |
1206 | hidnplayr | 1054 | ; |
1249 | hidnplayr | 1055 | ; IN: eax = socket ptr |
1514 | hidnplayr | 1056 | ; ebx = pointer to device struct |
1057 | ; ecx = data size |
||
1058 | ; esi = ptr to data |
||
1059 | ; [esp] = ptr to buf |
||
1060 | ; [esp + 4] = buf size |
||
1249 | hidnplayr | 1061 | ; |
1514 | hidnplayr | 1062 | ; OUT: / |
1206 | hidnplayr | 1063 | ; |
1257 | hidnplayr | 1064 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 1065 | align 4 |
1514 | hidnplayr | 1066 | SOCKET_input: |
1206 | hidnplayr | 1067 | |
2402 | hidnplayr | 1068 | DEBUGF 1,"SOCKET_input: socket=%x, data=%x size=%u\n", eax, esi, ecx |
1206 | hidnplayr | 1069 | |
2402 | hidnplayr | 1070 | mov [esp+4], ecx |
1071 | push esi |
||
1072 | mov esi, esp |
||
1514 | hidnplayr | 1073 | |
2402 | hidnplayr | 1074 | add_to_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, SOCKET_input.full |
1514 | hidnplayr | 1075 | |
2402 | hidnplayr | 1076 | DEBUGF 1,"SOCKET_input: queued packet successfully\n" |
1077 | add esp, sizeof.socket_queue_entry |
||
1206 | hidnplayr | 1078 | |
2402 | hidnplayr | 1079 | pusha |
1080 | lea ecx, [eax + SOCKET.mutex] |
||
1081 | call mutex_unlock |
||
1082 | popa |
||
1083 | |||
1084 | jmp SOCKET_notify_owner |
||
1085 | |||
1514 | hidnplayr | 1086 | .full: |
2402 | hidnplayr | 1087 | DEBUGF 2,"SOCKET_input: socket %x is full!\n", eax |
1206 | hidnplayr | 1088 | |
2402 | hidnplayr | 1089 | pusha |
1090 | lea ecx, [eax + SOCKET.mutex] |
||
1091 | call mutex_unlock |
||
1092 | popa |
||
1514 | hidnplayr | 1093 | |
2402 | hidnplayr | 1094 | call kernel_free |
1095 | add esp, 8 |
||
1533 | hidnplayr | 1096 | |
2402 | hidnplayr | 1097 | ret |
1098 | |||
1099 | |||
1533 | hidnplayr | 1100 | ;-------------------------- |
1101 | ; |
||
1102 | ; eax = ptr to ring struct (just a buffer of the right size) |
||
1103 | ; |
||
1104 | align 4 |
||
1105 | SOCKET_ring_create: |
||
1106 | |||
2402 | hidnplayr | 1107 | push esi |
1108 | mov esi, eax |
||
1543 | hidnplayr | 1109 | |
2402 | hidnplayr | 1110 | push edx |
1111 | stdcall create_ring_buffer, SOCKET_MAXDATA, PG_SW |
||
1112 | pop edx |
||
1533 | hidnplayr | 1113 | |
2402 | hidnplayr | 1114 | DEBUGF 1,"SOCKET_ring_created: %x\n", eax |
1115 | mov [esi + RING_BUFFER.start_ptr], eax |
||
1116 | mov [esi + RING_BUFFER.write_ptr], eax |
||
1117 | mov [esi + RING_BUFFER.read_ptr], eax |
||
1118 | mov [esi + RING_BUFFER.size], 0 |
||
1119 | add eax, SOCKET_MAXDATA |
||
1120 | mov [esi + RING_BUFFER.end_ptr], eax |
||
1121 | mov eax, esi |
||
1122 | pop esi |
||
1533 | hidnplayr | 1123 | |
2402 | hidnplayr | 1124 | ret |
1533 | hidnplayr | 1125 | |
1514 | hidnplayr | 1126 | ;----------------------------------------------------------------- |
1127 | ; |
||
1533 | hidnplayr | 1128 | ; SOCKET_ring_write |
1529 | hidnplayr | 1129 | ; |
1533 | hidnplayr | 1130 | ; Adds data to a stream socket, and updates write pointer and size |
1529 | hidnplayr | 1131 | ; |
1132 | ; IN: eax = ptr to ring struct |
||
1133 | ; ecx = data size |
||
1134 | ; esi = ptr to data |
||
1135 | ; |
||
1533 | hidnplayr | 1136 | ; OUT: ecx = number of bytes stored |
1529 | hidnplayr | 1137 | ; |
1138 | ;----------------------------------------------------------------- |
||
1139 | align 4 |
||
1533 | hidnplayr | 1140 | SOCKET_ring_write: |
1529 | hidnplayr | 1141 | |
2402 | hidnplayr | 1142 | DEBUGF 1,"SOCKET_ring_write: ringbuff=%x ptr=%x size=%u\n", eax, esi, ecx |
1529 | hidnplayr | 1143 | |
2402 | hidnplayr | 1144 | add [eax + RING_BUFFER.size], ecx |
2573 | hidnplayr | 1145 | jc .way_too_large |
2402 | hidnplayr | 1146 | cmp [eax + RING_BUFFER.size], SOCKET_MAXDATA |
1147 | ja .too_large |
||
1529 | hidnplayr | 1148 | |
1149 | .copy: |
||
2402 | hidnplayr | 1150 | mov edi, [eax + RING_BUFFER.write_ptr] |
1151 | DEBUGF 2,"SOCKET_ring_write: %u bytes from %x to %x\n", ecx, esi, edi |
||
1529 | hidnplayr | 1152 | |
2402 | hidnplayr | 1153 | push ecx |
1154 | shr ecx, 1 |
||
1155 | jnc .nb |
||
1156 | movsb |
||
1536 | hidnplayr | 1157 | .nb: |
2402 | hidnplayr | 1158 | shr ecx, 1 |
1159 | jnc .nw |
||
1160 | movsw |
||
1536 | hidnplayr | 1161 | .nw: |
2402 | hidnplayr | 1162 | test ecx, ecx |
1163 | jz .nd |
||
1164 | rep movsd |
||
1536 | hidnplayr | 1165 | .nd: |
2402 | hidnplayr | 1166 | pop ecx |
1529 | hidnplayr | 1167 | |
2402 | hidnplayr | 1168 | cmp edi, [eax + RING_BUFFER.end_ptr] |
1169 | jae .wrap |
||
1170 | mov [eax + RING_BUFFER.write_ptr], edi |
||
1533 | hidnplayr | 1171 | |
2402 | hidnplayr | 1172 | ret |
1529 | hidnplayr | 1173 | |
1533 | hidnplayr | 1174 | .wrap: |
2402 | hidnplayr | 1175 | sub edi, SOCKET_MAXDATA |
1176 | mov [eax + RING_BUFFER.write_ptr], edi |
||
1533 | hidnplayr | 1177 | |
2402 | hidnplayr | 1178 | ret |
1533 | hidnplayr | 1179 | |
2404 | hidnplayr | 1180 | .too_large: ; update size, we will fill buffer completely |
1181 | sub [eax + RING_BUFFER.size], SOCKET_MAXDATA |
||
2402 | hidnplayr | 1182 | sub ecx, [eax + RING_BUFFER.size] |
2404 | hidnplayr | 1183 | mov [eax + RING_BUFFER.size], SOCKET_MAXDATA |
2573 | hidnplayr | 1184 | ja .copy |
1529 | hidnplayr | 1185 | |
2573 | hidnplayr | 1186 | .full: |
2402 | hidnplayr | 1187 | DEBUGF 2,"SOCKET_ring_write: ring buffer is full!\n" |
1188 | xor ecx, ecx |
||
1189 | ret |
||
1529 | hidnplayr | 1190 | |
2573 | hidnplayr | 1191 | .way_too_large: |
1192 | sub [eax + RING_BUFFER.size], ecx |
||
1193 | mov ecx, SOCKET_MAXDATA |
||
1194 | sub ecx, [eax + RING_BUFFER.size] |
||
1195 | ja .copy |
||
1196 | jmp .full |
||
1529 | hidnplayr | 1197 | |
2573 | hidnplayr | 1198 | |
1199 | |||
1529 | hidnplayr | 1200 | ;----------------------------------------------------------------- |
1201 | ; |
||
1202 | ; SOCKET_ring_read |
||
1203 | ; |
||
1533 | hidnplayr | 1204 | ; reads the data, BUT DOES NOT CLEAR IT FROM MEMORY YET |
1529 | hidnplayr | 1205 | ; |
1206 | ; IN: eax = ptr to ring struct |
||
1207 | ; ecx = buffer size |
||
1208 | ; edi = ptr to buffer |
||
1209 | ; |
||
1533 | hidnplayr | 1210 | ; OUT: ecx = number of bytes read |
1529 | hidnplayr | 1211 | ; |
1212 | ;----------------------------------------------------------------- |
||
1213 | align 4 |
||
1214 | SOCKET_ring_read: |
||
1215 | |||
2402 | hidnplayr | 1216 | DEBUGF 1,"SOCKET_ring_read: ringbuff=%x ptr=%x size=%u\n", eax, edi, ecx |
1529 | hidnplayr | 1217 | |
2402 | hidnplayr | 1218 | cmp ecx, [eax + RING_BUFFER.size] |
1219 | ja .less_data |
||
1529 | hidnplayr | 1220 | |
1221 | .copy: |
||
2402 | hidnplayr | 1222 | mov esi, [eax + RING_BUFFER.read_ptr] |
1529 | hidnplayr | 1223 | |
2402 | hidnplayr | 1224 | DEBUGF 2,"SOCKET_ring_read: %u bytes from %x to %x\n", ecx, esi, edi |
1225 | push ecx |
||
1226 | shr ecx, 1 |
||
1227 | jnc .nb |
||
1228 | movsb |
||
1536 | hidnplayr | 1229 | .nb: |
2402 | hidnplayr | 1230 | shr ecx, 1 |
1231 | jnc .nw |
||
1232 | movsw |
||
1536 | hidnplayr | 1233 | .nw: |
2402 | hidnplayr | 1234 | test ecx, ecx |
1235 | jz .nd |
||
1236 | rep movsd |
||
1536 | hidnplayr | 1237 | .nd: |
2402 | hidnplayr | 1238 | pop ecx |
1529 | hidnplayr | 1239 | |
1830 | hidnplayr | 1240 | .no_data_at_all: |
2402 | hidnplayr | 1241 | ret |
1529 | hidnplayr | 1242 | |
1533 | hidnplayr | 1243 | .less_data: |
2402 | hidnplayr | 1244 | mov ecx, [eax + RING_BUFFER.size] |
1830 | hidnplayr | 1245 | ; test ecx, ecx |
1533 | hidnplayr | 1246 | ; jz .no_data_at_all |
2402 | hidnplayr | 1247 | jmp .copy |
1529 | hidnplayr | 1248 | |
1249 | |||
1250 | ;----------------------------------------------------------------- |
||
1251 | ; |
||
1252 | ; SOCKET_ring_free |
||
1253 | ; |
||
1254 | ; Free's some bytes from the ringbuffer |
||
1255 | ; |
||
1256 | ; IN: eax = ptr to ring struct |
||
1257 | ; ecx = data size |
||
1258 | ; |
||
1259 | ; OUT: ecx = number of bytes free-ed |
||
1260 | ; |
||
1261 | ;----------------------------------------------------------------- |
||
1262 | align 4 |
||
1263 | SOCKET_ring_free: |
||
1264 | |||
2402 | hidnplayr | 1265 | DEBUGF 1,"SOCKET_ring_free: %u bytes from ring %x\n", ecx, eax |
1529 | hidnplayr | 1266 | |
2402 | hidnplayr | 1267 | sub [eax + RING_BUFFER.size], ecx |
1268 | jb .sumthinwong |
||
1269 | add [eax + RING_BUFFER.read_ptr], ecx |
||
1529 | hidnplayr | 1270 | |
2402 | hidnplayr | 1271 | mov edx, [eax + RING_BUFFER.end_ptr] |
1272 | cmp [eax + RING_BUFFER.read_ptr], edx |
||
1273 | jb @f |
||
1274 | sub [eax + RING_BUFFER.read_ptr], SOCKET_MAXDATA |
||
1529 | hidnplayr | 1275 | @@: |
2402 | hidnplayr | 1276 | ret |
1529 | hidnplayr | 1277 | |
2402 | hidnplayr | 1278 | .sumthinwong: ; we could free all available bytes, but that would be stupid, i guess.. |
1279 | add [eax + RING_BUFFER.size], ecx |
||
1280 | xor ecx, ecx |
||
1281 | ret |
||
1529 | hidnplayr | 1282 | |
1283 | |||
1284 | ;----------------------------------------------------------------- |
||
1285 | ; |
||
1514 | hidnplayr | 1286 | ; SOCKET_notify_owner |
1287 | ; |
||
1288 | ; notify's the owner of a socket that something happened |
||
1289 | ; |
||
1290 | ; IN: eax = socket ptr |
||
1291 | ; OUT: / |
||
1292 | ; |
||
1293 | ;----------------------------------------------------------------- |
||
1294 | align 4 |
||
1295 | SOCKET_notify_owner: |
||
1296 | |||
2402 | hidnplayr | 1297 | DEBUGF 1,"SOCKET_notify_owner: %x\n", eax |
1514 | hidnplayr | 1298 | |
2402 | hidnplayr | 1299 | call SOCKET_check |
1300 | jz .error |
||
1514 | hidnplayr | 1301 | |
2402 | hidnplayr | 1302 | push eax ecx esi |
1514 | hidnplayr | 1303 | |
1304 | ; socket exists, now try to flag an event to the application |
||
1305 | |||
2402 | hidnplayr | 1306 | mov eax, [eax + SOCKET.PID] |
1307 | mov ecx, 1 |
||
1308 | mov esi, TASK_DATA + TASKDATA.pid |
||
1206 | hidnplayr | 1309 | |
1310 | .next_pid: |
||
2402 | hidnplayr | 1311 | cmp [esi], eax |
1312 | je .found_pid |
||
1313 | inc ecx |
||
1314 | add esi, 0x20 |
||
1315 | cmp ecx, [TASK_COUNT] |
||
1316 | jbe .next_pid |
||
1206 | hidnplayr | 1317 | |
1514 | hidnplayr | 1318 | ; PID not found, TODO: close socket! |
1319 | |||
2402 | hidnplayr | 1320 | jmp .error2 |
1514 | hidnplayr | 1321 | |
1206 | hidnplayr | 1322 | .found_pid: |
2402 | hidnplayr | 1323 | shl ecx, 8 |
1324 | or [ecx + SLOT_BASE + APPDATA.event_mask], EVENT_NETWORK |
||
1325 | mov [check_idle_semaphore], 200 |
||
1206 | hidnplayr | 1326 | |
2402 | hidnplayr | 1327 | DEBUGF 1,"SOCKET_notify_owner: succes!\n" |
1514 | hidnplayr | 1328 | |
1329 | .error2: |
||
2402 | hidnplayr | 1330 | pop esi ecx eax |
1536 | hidnplayr | 1331 | |
1514 | hidnplayr | 1332 | .error: |
1333 | |||
2402 | hidnplayr | 1334 | ret |
1206 | hidnplayr | 1335 | |
1336 | |||
1514 | hidnplayr | 1337 | ;-------------------------------------------------------------------- |
1338 | ; |
||
1339 | ; SOCKET_alloc |
||
1340 | ; |
||
1159 | hidnplayr | 1341 | ; Allocate memory for socket data and put new socket into the list |
1342 | ; Newly created socket is initialized with calling PID and number and |
||
1343 | ; put into beginning of list (which is a fastest way). |
||
1344 | ; |
||
1514 | hidnplayr | 1345 | ; IN: / |
1346 | ; OUT: eax = 0 on error, socket ptr otherwise |
||
1347 | ; edi = socket number |
||
1348 | ; ZF = cleared on error |
||
1159 | hidnplayr | 1349 | ; |
1514 | hidnplayr | 1350 | ;-------------------------------------------------------------------- |
1351 | align 4 |
||
1352 | SOCKET_alloc: |
||
1353 | |||
2402 | hidnplayr | 1354 | push ebx |
1514 | hidnplayr | 1355 | |
2402 | hidnplayr | 1356 | stdcall kernel_alloc, SOCKETBUFFSIZE |
1357 | DEBUGF 1, "SOCKET_alloc: ptr=%x\n", eax |
||
1358 | or eax, eax |
||
1359 | jz .exit |
||
1159 | hidnplayr | 1360 | |
1514 | hidnplayr | 1361 | ; zero-initialize allocated memory |
2402 | hidnplayr | 1362 | push eax |
1363 | mov edi, eax |
||
1364 | mov ecx, SOCKETBUFFSIZE / 4 |
||
1365 | xor eax, eax |
||
1366 | rep stosd |
||
1367 | pop eax |
||
1159 | hidnplayr | 1368 | |
1536 | hidnplayr | 1369 | ; set send-and receive procedures to return -1 |
2402 | hidnplayr | 1370 | mov [eax + SOCKET.snd_proc], s_error |
1371 | mov [eax + SOCKET.rcv_proc], s_error |
||
1536 | hidnplayr | 1372 | |
1514 | hidnplayr | 1373 | ; find first free socket number and use it |
2402 | hidnplayr | 1374 | mov edi, [last_socket_num] |
1159 | hidnplayr | 1375 | .next_socket_number: |
2402 | hidnplayr | 1376 | inc edi |
1377 | jz .next_socket_number ; avoid socket nr 0 |
||
1378 | cmp edi, -1 |
||
1379 | je .next_socket_number ; avoid socket nr -1 |
||
1380 | mov ebx, net_sockets |
||
1159 | hidnplayr | 1381 | .next_socket: |
2402 | hidnplayr | 1382 | mov ebx, [ebx + SOCKET.NextPtr] |
1383 | test ebx, ebx |
||
1384 | jz .last_socket |
||
1536 | hidnplayr | 1385 | |
2402 | hidnplayr | 1386 | cmp [ebx + SOCKET.Number], edi |
1387 | jne .next_socket |
||
1388 | jmp .next_socket_number |
||
1159 | hidnplayr | 1389 | |
1514 | hidnplayr | 1390 | .last_socket: |
2402 | hidnplayr | 1391 | mov [last_socket_num], edi |
1392 | mov [eax + SOCKET.Number], edi |
||
1393 | DEBUGF 1, "SOCKET_alloc: number=%u\n", edi |
||
1159 | hidnplayr | 1394 | |
1514 | hidnplayr | 1395 | ; Fill in PID |
2402 | hidnplayr | 1396 | mov ebx, [TASK_BASE] |
1397 | mov ebx, [ebx + TASKDATA.pid] |
||
1398 | mov [eax + SOCKET.PID], ebx |
||
1514 | hidnplayr | 1399 | |
2403 | hidnplayr | 1400 | ; init mutex |
1401 | pusha |
||
1402 | lea ecx, [eax + SOCKET.mutex] |
||
1403 | call mutex_init |
||
1404 | popa |
||
1405 | |||
1529 | hidnplayr | 1406 | ; add socket to the list by re-arranging some pointers |
2402 | hidnplayr | 1407 | mov ebx, [net_sockets + SOCKET.NextPtr] |
1514 | hidnplayr | 1408 | |
2402 | hidnplayr | 1409 | mov [eax + SOCKET.PrevPtr], net_sockets |
1410 | mov [eax + SOCKET.NextPtr], ebx |
||
1514 | hidnplayr | 1411 | |
2402 | hidnplayr | 1412 | test ebx, ebx |
1413 | jz @f |
||
1414 | |||
1415 | pusha |
||
1416 | lea ecx, [ebx + SOCKET.mutex] |
||
1417 | call mutex_lock |
||
1418 | popa |
||
1419 | |||
1420 | mov [ebx + SOCKET.PrevPtr], eax |
||
1421 | |||
1422 | pusha |
||
1423 | lea ecx, [ebx + SOCKET.mutex] |
||
1424 | call mutex_unlock |
||
1425 | popa |
||
1514 | hidnplayr | 1426 | @@: |
1427 | |||
2402 | hidnplayr | 1428 | mov [net_sockets + SOCKET.NextPtr], eax |
1429 | or eax, eax ; used to clear zero flag |
||
1159 | hidnplayr | 1430 | .exit: |
2402 | hidnplayr | 1431 | pop ebx |
1514 | hidnplayr | 1432 | |
2402 | hidnplayr | 1433 | ret |
1159 | hidnplayr | 1434 | |
1514 | hidnplayr | 1435 | |
1436 | ;---------------------------------------------------- |
||
1159 | hidnplayr | 1437 | ; |
1514 | hidnplayr | 1438 | ; SOCKET_free |
1159 | hidnplayr | 1439 | ; |
1514 | hidnplayr | 1440 | ; Free socket data memory and remove socket from the list |
1441 | ; |
||
1442 | ; IN: eax = socket ptr |
||
1443 | ; OUT: / |
||
1444 | ; |
||
1445 | ;---------------------------------------------------- |
||
1446 | align 4 |
||
1447 | SOCKET_free: |
||
1159 | hidnplayr | 1448 | |
2402 | hidnplayr | 1449 | DEBUGF 1, "SOCKET_free: %x\n", eax |
1514 | hidnplayr | 1450 | |
2402 | hidnplayr | 1451 | call SOCKET_check |
1452 | jz .error |
||
1159 | hidnplayr | 1453 | |
2402 | hidnplayr | 1454 | push ebx |
1514 | hidnplayr | 1455 | |
2402 | hidnplayr | 1456 | pusha |
1457 | lea ecx, [eax + SOCKET.mutex] |
||
1458 | call mutex_lock |
||
1459 | popa |
||
1514 | hidnplayr | 1460 | |
2402 | hidnplayr | 1461 | DEBUGF 1, "SOCKET_free: freeing socket..\n" |
1529 | hidnplayr | 1462 | |
2402 | hidnplayr | 1463 | cmp [eax + SOCKET.Domain], AF_INET4 |
1464 | jnz .no_tcp |
||
1529 | hidnplayr | 1465 | |
2402 | hidnplayr | 1466 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
1467 | jnz .no_tcp |
||
1468 | |||
1469 | mov ebx, eax |
||
1470 | stdcall kernel_free, [ebx + STREAM_SOCKET.rcv.start_ptr] |
||
1471 | stdcall kernel_free, [ebx + STREAM_SOCKET.snd.start_ptr] |
||
1472 | mov eax, ebx |
||
1536 | hidnplayr | 1473 | .no_tcp: |
1529 | hidnplayr | 1474 | |
2402 | hidnplayr | 1475 | push eax ; this will be passed to kernel_free |
1476 | mov ebx, [eax + SOCKET.NextPtr] |
||
1477 | mov eax, [eax + SOCKET.PrevPtr] |
||
1514 | hidnplayr | 1478 | |
2402 | hidnplayr | 1479 | DEBUGF 1, "SOCKET_free: linking socket %x to socket %x\n", eax, ebx |
1514 | hidnplayr | 1480 | |
2402 | hidnplayr | 1481 | test eax, eax |
1482 | jz @f |
||
1483 | mov [eax + SOCKET.NextPtr], ebx |
||
1514 | hidnplayr | 1484 | @@: |
1159 | hidnplayr | 1485 | |
2402 | hidnplayr | 1486 | test ebx, ebx |
1487 | jz @f |
||
1488 | mov [ebx + SOCKET.PrevPtr], eax |
||
1514 | hidnplayr | 1489 | @@: |
1249 | hidnplayr | 1490 | |
2402 | hidnplayr | 1491 | call kernel_free |
1492 | pop ebx |
||
1159 | hidnplayr | 1493 | |
2402 | hidnplayr | 1494 | DEBUGF 1, "SOCKET_free: success!\n" |
1514 | hidnplayr | 1495 | |
1159 | hidnplayr | 1496 | .error: |
2402 | hidnplayr | 1497 | ret |
1159 | hidnplayr | 1498 | |
1543 | hidnplayr | 1499 | ;------------------------------------ |
1500 | ; |
||
1501 | ; SOCKET_fork |
||
1502 | ; |
||
1503 | ; Create a child socket |
||
1504 | ; |
||
1533 | hidnplayr | 1505 | ; IN: socket nr in ebx |
1543 | hidnplayr | 1506 | ; OUT: child socket nr in eax |
1507 | ; |
||
1508 | ;----------------------------------- |
||
1529 | hidnplayr | 1509 | align 4 |
1510 | SOCKET_fork: |
||
1511 | |||
2402 | hidnplayr | 1512 | DEBUGF 1,"SOCKET_fork: %x\n", ebx |
1529 | hidnplayr | 1513 | |
1543 | hidnplayr | 1514 | ; Exit if backlog queue is full |
2402 | hidnplayr | 1515 | mov eax, [ebx + SOCKET_QUEUE_LOCATION + queue.size] |
1516 | cmp ax, [ebx + SOCKET.backlog] |
||
1517 | jae .fail |
||
1543 | hidnplayr | 1518 | |
1529 | hidnplayr | 1519 | ; Allocate new socket |
2402 | hidnplayr | 1520 | push ebx |
1521 | call SOCKET_alloc |
||
1522 | pop ebx |
||
1523 | jz .fail |
||
1529 | hidnplayr | 1524 | |
2402 | hidnplayr | 1525 | push eax |
1526 | mov esi, esp |
||
1527 | add_to_queue (ebx + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, .fail2 |
||
1528 | pop eax |
||
1543 | hidnplayr | 1529 | |
1530 | ; Copy structure from current socket to new |
||
1531 | ; We start at PID to preserve the socket num, and the 2 pointers at beginning of socket |
||
2402 | hidnplayr | 1532 | lea esi, [ebx + SOCKET.PID] |
1533 | lea edi, [eax + SOCKET.PID] |
||
1534 | mov ecx, (SOCKET_QUEUE_LOCATION - SOCKET.PID + 3)/4 |
||
1535 | rep movsd |
||
1529 | hidnplayr | 1536 | |
2402 | hidnplayr | 1537 | and [eax + SOCKET.options], not SO_ACCEPTCON |
1529 | hidnplayr | 1538 | |
2402 | hidnplayr | 1539 | ret |
1529 | hidnplayr | 1540 | |
1543 | hidnplayr | 1541 | .fail2: |
2402 | hidnplayr | 1542 | add esp, 4+4+4 |
1543 | hidnplayr | 1543 | .fail: |
2402 | hidnplayr | 1544 | DEBUGF 1,"SOCKET_fork: failed\n" |
1545 | xor eax, eax |
||
1546 | ret |
||
1529 | hidnplayr | 1547 | |
1543 | hidnplayr | 1548 | |
1514 | hidnplayr | 1549 | ;--------------------------------------------------- |
1550 | ; |
||
1551 | ; SOCKET_num_to_ptr |
||
1552 | ; |
||
1159 | hidnplayr | 1553 | ; Get socket structure address by its number |
1554 | ; |
||
1514 | hidnplayr | 1555 | ; IN: ecx = socket number |
1533 | hidnplayr | 1556 | ; OUT: eax = 0 on error, socket ptr otherwise |
1514 | hidnplayr | 1557 | ; ZF = set on error |
1159 | hidnplayr | 1558 | ; |
1514 | hidnplayr | 1559 | ;--------------------------------------------------- |
1560 | align 4 |
||
1561 | SOCKET_num_to_ptr: |
||
1159 | hidnplayr | 1562 | |
2402 | hidnplayr | 1563 | DEBUGF 1,"SOCKET_num_to_ptr: %u ", ecx |
1514 | hidnplayr | 1564 | |
2402 | hidnplayr | 1565 | mov eax, net_sockets |
1514 | hidnplayr | 1566 | |
1159 | hidnplayr | 1567 | .next_socket: |
2402 | hidnplayr | 1568 | mov eax, [eax + SOCKET.NextPtr] |
1569 | or eax, eax |
||
1570 | jz .error |
||
1571 | cmp [eax + SOCKET.Number], ecx |
||
1572 | jne .next_socket |
||
1159 | hidnplayr | 1573 | |
2402 | hidnplayr | 1574 | test eax, eax |
1159 | hidnplayr | 1575 | |
2402 | hidnplayr | 1576 | DEBUGF 1,"(%x)\n", eax |
1159 | hidnplayr | 1577 | .error: |
2402 | hidnplayr | 1578 | ret |
1159 | hidnplayr | 1579 | |
1514 | hidnplayr | 1580 | |
1581 | ;--------------------------------------------------- |
||
1159 | hidnplayr | 1582 | ; |
1514 | hidnplayr | 1583 | ; SOCKET_ptr_to_num |
1159 | hidnplayr | 1584 | ; |
1514 | hidnplayr | 1585 | ; Get socket number by its address |
1586 | ; |
||
1587 | ; IN: eax = socket ptr |
||
1588 | ; OUT: eax = 0 on error, socket num otherwise |
||
1589 | ; ZF = set on error |
||
1590 | ; |
||
1591 | ;--------------------------------------------------- |
||
1592 | align 4 |
||
1593 | SOCKET_ptr_to_num: |
||
1594 | |||
2402 | hidnplayr | 1595 | DEBUGF 1,"SOCKET_ptr_to_num: %x ", eax |
1514 | hidnplayr | 1596 | |
2402 | hidnplayr | 1597 | call SOCKET_check |
1598 | jz .error |
||
1159 | hidnplayr | 1599 | |
2402 | hidnplayr | 1600 | mov eax, [eax + SOCKET.Number] |
1514 | hidnplayr | 1601 | |
2402 | hidnplayr | 1602 | DEBUGF 1,"(%u)\n", eax |
1514 | hidnplayr | 1603 | |
1604 | .error: |
||
2402 | hidnplayr | 1605 | ret |
1514 | hidnplayr | 1606 | |
1607 | |||
1608 | ;--------------------------------------------------- |
||
1609 | ; |
||
1610 | ; SOCKET_check |
||
1611 | ; |
||
1612 | ; checks if the given value is really a socket ptr |
||
1613 | ; |
||
1614 | ; IN: eax = socket ptr |
||
1615 | ; OUT: eax = 0 on error, unchanged otherwise |
||
1616 | ; ZF = set on error |
||
1617 | ; |
||
1618 | ;--------------------------------------------------- |
||
1619 | align 4 |
||
1620 | SOCKET_check: |
||
1621 | |||
2402 | hidnplayr | 1622 | DEBUGF 1,"SOCKET_check: %x\n", eax |
1514 | hidnplayr | 1623 | |
2402 | hidnplayr | 1624 | push ebx |
1625 | mov ebx, net_sockets |
||
1514 | hidnplayr | 1626 | |
1159 | hidnplayr | 1627 | .next_socket: |
2402 | hidnplayr | 1628 | mov ebx, [ebx + SOCKET.NextPtr] |
1629 | or ebx, ebx |
||
1630 | jz .done |
||
1631 | cmp ebx, eax |
||
1632 | jnz .next_socket |
||
1159 | hidnplayr | 1633 | |
1514 | hidnplayr | 1634 | .done: |
2402 | hidnplayr | 1635 | mov eax, ebx |
1636 | test eax, eax |
||
1637 | pop ebx |
||
1514 | hidnplayr | 1638 | |
2402 | hidnplayr | 1639 | ret |
1159 | hidnplayr | 1640 | |
1514 | hidnplayr | 1641 | |
1642 | |||
1643 | ;--------------------------------------------------- |
||
1644 | ; |
||
1645 | ; SOCKET_check_owner |
||
1646 | ; |
||
1647 | ; checks if the caller application owns the socket |
||
1648 | ; |
||
1649 | ; IN: eax = socket ptr |
||
1650 | ; OUT: ZF = true/false |
||
1651 | ; |
||
1652 | ;--------------------------------------------------- |
||
1653 | align 4 |
||
1654 | SOCKET_check_owner: |
||
1655 | |||
2402 | hidnplayr | 1656 | DEBUGF 1,"SOCKET_check_owner: %x\n", eax |
1514 | hidnplayr | 1657 | |
2402 | hidnplayr | 1658 | push ebx |
1659 | mov ebx, [TASK_BASE] |
||
1660 | mov ebx, [ecx + TASKDATA.pid] |
||
1661 | cmp [eax + SOCKET.PID], ebx |
||
1662 | pop ebx |
||
1514 | hidnplayr | 1663 | |
2402 | hidnplayr | 1664 | ret |
1514 | hidnplayr | 1665 | |
1666 | |||
1667 | |||
1668 | |||
1885 | hidnplayr | 1669 | ;------------------------------------------------------ |
1514 | hidnplayr | 1670 | ; |
1671 | ; SOCKET_process_end |
||
1672 | ; |
||
1673 | ; Kernel calls this function when a certain process ends |
||
1674 | ; This function will check if the process had any open sockets |
||
1675 | ; And update them accordingly |
||
1676 | ; |
||
1677 | ; IN: eax = pid |
||
1678 | ; OUT: / |
||
1679 | ; |
||
1680 | ;------------------------------------------------------ |
||
1681 | align 4 |
||
1682 | SOCKET_process_end: |
||
1683 | |||
2402 | hidnplayr | 1684 | DEBUGF 1,"SOCKET_process_end: %x\n", eax |
1514 | hidnplayr | 1685 | |
2402 | hidnplayr | 1686 | push ebx |
1687 | mov ebx, net_sockets |
||
1514 | hidnplayr | 1688 | |
1689 | .next_socket: |
||
1690 | |||
2402 | hidnplayr | 1691 | mov ebx, [ebx + SOCKET.NextPtr] |
1514 | hidnplayr | 1692 | .test_socket: |
2402 | hidnplayr | 1693 | test ebx, ebx |
1694 | jz .done |
||
1514 | hidnplayr | 1695 | |
2402 | hidnplayr | 1696 | cmp [ebx + SOCKET.PID], eax |
1697 | jne .next_socket |
||
1514 | hidnplayr | 1698 | |
2402 | hidnplayr | 1699 | DEBUGF 1,"closing socket %x", eax, ebx |
1514 | hidnplayr | 1700 | |
2402 | hidnplayr | 1701 | mov [ebx + SOCKET.PID], 0 |
1514 | hidnplayr | 1702 | |
2402 | hidnplayr | 1703 | cmp [ebx + SOCKET.Protocol], IP_PROTO_UDP |
1704 | je .udp |
||
1514 | hidnplayr | 1705 | |
2402 | hidnplayr | 1706 | cmp [ebx + SOCKET.Protocol], IP_PROTO_TCP |
1707 | je .tcp |
||
1514 | hidnplayr | 1708 | |
2402 | hidnplayr | 1709 | jmp .next_socket ; kill all sockets for given PID |
1514 | hidnplayr | 1710 | |
1711 | .udp: |
||
2402 | hidnplayr | 1712 | mov eax, ebx |
1713 | mov ebx, [ebx + SOCKET.NextPtr] |
||
1714 | call SOCKET_free |
||
1715 | jmp .test_socket |
||
1514 | hidnplayr | 1716 | |
1717 | .tcp: |
||
1718 | |||
2402 | hidnplayr | 1719 | ;;; TODO |
1885 | hidnplayr | 1720 | |
2402 | hidnplayr | 1721 | jmp .next_socket |
1514 | hidnplayr | 1722 | |
1723 | .done: |
||
2402 | hidnplayr | 1724 | pop ebx |
1514 | hidnplayr | 1725 | |
2402 | hidnplayr | 1726 | ret |
1773 | hidnplayr | 1727 | |
1728 | |||
1729 | |||
1730 | |||
1885 | hidnplayr | 1731 | ;----------------------------------------------------------------- |
1732 | ; |
||
1733 | ; SOCKET_is_connecting |
||
1734 | ; |
||
1735 | ; IN: eax = socket ptr |
||
1736 | ; OUT: / |
||
1737 | ; |
||
1738 | ;----------------------------------------------------------------- |
||
1773 | hidnplayr | 1739 | |
1885 | hidnplayr | 1740 | align 4 |
1741 | SOCKET_is_connecting: |
||
1773 | hidnplayr | 1742 | |
1743 | |||
2402 | hidnplayr | 1744 | and [eax + SOCKET.options], not (SS_ISCONNECTED + SS_ISDISCONNECTING + SS_ISCONFIRMING) |
1745 | or [eax + SOCKET.options], SS_ISCONNECTING |
||
1773 | hidnplayr | 1746 | |
2402 | hidnplayr | 1747 | jmp SOCKET_notify_owner |
1885 | hidnplayr | 1748 | |
1749 | |||
1750 | |||
1773 | hidnplayr | 1751 | ;----------------------------------------------------------------- |
1752 | ; |
||
1885 | hidnplayr | 1753 | ; SOCKET_is_connected |
1754 | ; |
||
1755 | ; IN: eax = socket ptr |
||
1756 | ; OUT: / |
||
1757 | ; |
||
1758 | ;----------------------------------------------------------------- |
||
1759 | |||
1760 | align 4 |
||
1761 | SOCKET_is_connected: |
||
1762 | |||
1763 | |||
2402 | hidnplayr | 1764 | and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISDISCONNECTING + SS_ISCONFIRMING) |
1765 | or [eax + SOCKET.options], SS_ISCONNECTED |
||
1885 | hidnplayr | 1766 | |
2402 | hidnplayr | 1767 | jmp SOCKET_notify_owner |
1885 | hidnplayr | 1768 | |
1769 | |||
1770 | |||
1771 | |||
1772 | ;----------------------------------------------------------------- |
||
1773 | ; |
||
1773 | hidnplayr | 1774 | ; SOCKET_is_disconnecting |
1775 | ; |
||
1776 | ; IN: eax = socket ptr |
||
1777 | ; OUT: / |
||
1778 | ; |
||
1779 | ;----------------------------------------------------------------- |
||
1780 | |||
1781 | align 4 |
||
1782 | SOCKET_is_disconnecting: |
||
1783 | |||
2402 | hidnplayr | 1784 | and [eax + SOCKET.options], not (SS_ISCONNECTING) |
1785 | or [eax + SOCKET.options], SS_ISDISCONNECTING + SS_CANTRCVMORE + SS_CANTSENDMORE |
||
1773 | hidnplayr | 1786 | |
2402 | hidnplayr | 1787 | jmp SOCKET_notify_owner |
1773 | hidnplayr | 1788 | |
1789 | |||
1790 | |||
1791 | ;----------------------------------------------------------------- |
||
1792 | ; |
||
1793 | ; SOCKET_is_disconnected |
||
1794 | ; |
||
1795 | ; IN: eax = socket ptr |
||
1796 | ; OUT: / |
||
1797 | ; |
||
1798 | ;----------------------------------------------------------------- |
||
1799 | |||
1800 | align 4 |
||
1801 | SOCKET_is_disconnected: |
||
1802 | |||
2402 | hidnplayr | 1803 | and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISCONNECTED + SS_ISDISCONNECTING) |
1804 | or [eax + SOCKET.options], SS_CANTRCVMORE + SS_CANTSENDMORE |
||
1773 | hidnplayr | 1805 | |
2402 | hidnplayr | 1806 | jmp SOCKET_notify_owner |
1774 | hidnplayr | 1807 | |
1808 | |||
1809 | ;----------------------------------------------------------------- |
||
1810 | ; |
||
1811 | ; SOCKET_cant_recv_more |
||
1812 | ; |
||
1813 | ; IN: eax = socket ptr |
||
1814 | ; OUT: / |
||
1815 | ; |
||
1816 | ;----------------------------------------------------------------- |
||
1817 | |||
1818 | align 4 |
||
1819 | SOCKET_cant_recv_more: |
||
1820 | |||
2402 | hidnplayr | 1821 | or [eax + SOCKET.options], SS_CANTRCVMORE |
1885 | hidnplayr | 1822 | |
2402 | hidnplayr | 1823 | ret |
1831 | hidnplayr | 1824 | |
1825 | |||
1826 | |||
1827 | ;----------------------------------------------------------------- |
||
1828 | ; |
||
1885 | hidnplayr | 1829 | ; SOCKET_cant_send_more |
1831 | hidnplayr | 1830 | ; |
1831 | ; IN: eax = socket ptr |
||
1832 | ; OUT: / |
||
1833 | ; |
||
1834 | ;----------------------------------------------------------------- |
||
1835 | |||
1836 | align 4 |
||
1885 | hidnplayr | 1837 | SOCKET_cant_send_more: |
1831 | hidnplayr | 1838 | |
2402 | hidnplayr | 1839 | or [eax + SOCKET.options], SS_CANTSENDMORE |
1831 | hidnplayr | 1840 | |
2402 | hidnplayr | 1841 | ret |