1 | /*
|
---|
2 | * TOPPERS ECHONET Lite Communication Middleware
|
---|
3 | *
|
---|
4 | * Copyright (C) 2015 Cores Co., Ltd. Japan
|
---|
5 | *
|
---|
6 | * ä¸è¨èä½æ¨©è
|
---|
7 | ã¯ï¼ä»¥ä¸ã®(1)ï½(4)ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
|
---|
8 | * ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹
|
---|
9 | * å¤ã»åé
|
---|
10 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
|
---|
11 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
|
---|
12 | * 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼
|
---|
13 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
|
---|
14 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
|
---|
15 | * ç¨ã§ããå½¢ã§åé
|
---|
16 | å¸ããå ´åã«ã¯ï¼åé
|
---|
17 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
|
---|
18 | * è
|
---|
19 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
|
---|
20 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
|
---|
21 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
|
---|
22 | * ç¨ã§ããªãå½¢ã§åé
|
---|
23 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
|
---|
24 | * ã¨ï¼
|
---|
25 | * (a) åé
|
---|
26 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
|
---|
27 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
|
---|
28 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
|
---|
29 | * (b) åé
|
---|
30 | å¸ã®å½¢æ
|
---|
31 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
|
---|
32 | * å ±åãããã¨ï¼
|
---|
33 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
|
---|
34 | * 害ãããï¼ä¸è¨èä½æ¨©è
|
---|
35 | ããã³TOPPERSããã¸ã§ã¯ããå
|
---|
36 | 責ãããã¨ï¼
|
---|
37 | * ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãç
|
---|
38 | * ç±ã«åºã¥ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
|
---|
39 | ããã³TOPPERSããã¸ã§ã¯ãã
|
---|
40 | * å
|
---|
41 | 責ãããã¨ï¼
|
---|
42 | *
|
---|
43 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
|
---|
44 | ã
|
---|
45 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ç¹å®ã®ä½¿ç¨ç®ç
|
---|
46 | * ã«å¯¾ããé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§
|
---|
47 | * ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ã
|
---|
48 | * ã®è²¬ä»»ãè² ããªãï¼
|
---|
49 | *
|
---|
50 | * @(#) $Id: websocket.c 270 2017-02-09 04:03:47Z coas-nagasima $
|
---|
51 | */
|
---|
52 |
|
---|
53 | #include <string.h>
|
---|
54 | #include "websocket.h"
|
---|
55 | #include "kernel.h"
|
---|
56 | #include "kernel_cfg.h"
|
---|
57 | #include "syssvc/syslog.h"
|
---|
58 |
|
---|
59 | static ECN_FBS_ID cur_out_msg;
|
---|
60 |
|
---|
61 | void websocket_init(struct websocket *ws, ID wbsid)
|
---|
62 | {
|
---|
63 | memset(ws, 0, sizeof(*ws));
|
---|
64 | ws->wbsid = wbsid;
|
---|
65 | }
|
---|
66 |
|
---|
67 | void websocket_destroy(struct websocket *ws)
|
---|
68 | {
|
---|
69 | if ((cur_out_msg.ptr != NULL) && (((ID *)cur_out_msg.ptr->_gap)[0] == ws->wbsid))
|
---|
70 | {
|
---|
71 | _ecn_fbs_del(cur_out_msg);
|
---|
72 | memset(&cur_out_msg, 0, sizeof(cur_out_msg));
|
---|
73 | }
|
---|
74 |
|
---|
75 | if (ws->cur_in_msg.ptr != NULL) {
|
---|
76 | _ecn_fbs_del(ws->cur_in_msg);
|
---|
77 | memset(&ws->cur_in_msg, 0, sizeof(ws->cur_in_msg));
|
---|
78 | }
|
---|
79 |
|
---|
80 | ws->wbsid = 0;
|
---|
81 | }
|
---|
82 |
|
---|
83 | int websocket_input(struct websocket *ws, const void *data, int len)
|
---|
84 | {
|
---|
85 | ws_state_t *s = &ws->rstate;
|
---|
86 | const uint8_t *pos = (const uint8_t *)data, *end = &((const uint8_t *)data)[len];
|
---|
87 |
|
---|
88 | for(; pos < end; pos++){
|
---|
89 | switch (s->state)
|
---|
90 | {
|
---|
91 | // FIN RSV1-3 OPECODE
|
---|
92 | case 0:
|
---|
93 | s->fin = (*pos & 0x80) != 0;
|
---|
94 | s->opecode = (enum opecode_t)(*pos & 0x0F);
|
---|
95 | s->state = 1;
|
---|
96 | break;
|
---|
97 | // MASK Payload len
|
---|
98 | case 1:
|
---|
99 | // MASK=0ã¯NG
|
---|
100 | if((*pos & 0x80) == 0)
|
---|
101 | return -1/*MASK_ERROR*/;
|
---|
102 |
|
---|
103 | switch(*pos & 0x7F){
|
---|
104 | case 127:
|
---|
105 | s->payload_len = 0;
|
---|
106 | s->state = 2/*7+64bit*/;
|
---|
107 | break;
|
---|
108 | case 126:
|
---|
109 | s->payload_len = 0;
|
---|
110 | s->state = 8/*7+16bit*/;
|
---|
111 | break;
|
---|
112 | default:
|
---|
113 | s->payload_len = *pos & 0x7F;
|
---|
114 | s->state = 10/*7bit*/;
|
---|
115 | break;
|
---|
116 | }
|
---|
117 | break;
|
---|
118 | // 64bit Extended payload length
|
---|
119 | case 2: case 3: case 4: case 5: case 6: case 7:
|
---|
120 | // 16bit Extended payload length
|
---|
121 | case 8: case 9:
|
---|
122 | s->payload_len = (s->payload_len << 8) + *pos;
|
---|
123 | s->state++;
|
---|
124 | break;
|
---|
125 | // Masking-key
|
---|
126 | case 10: case 11: case 12:
|
---|
127 | s->masking_key[s->state - 10] = *pos;
|
---|
128 | s->state++;
|
---|
129 | break;
|
---|
130 | case 13:
|
---|
131 | s->masking_key[3] = *pos;
|
---|
132 |
|
---|
133 | s->data_pos = 0;
|
---|
134 | if (s->payload_len <= 0) {
|
---|
135 | s->state = 0;
|
---|
136 | }
|
---|
137 | else {
|
---|
138 | _ecn_fbs_cre(1, &ws->cur_in_msg);
|
---|
139 | s->state++;
|
---|
140 | }
|
---|
141 | break;
|
---|
142 | // Payload buffer
|
---|
143 | default:
|
---|
144 | if(ws->cur_in_msg.ptr != NULL)
|
---|
145 | _ecn_fbs_poke(ws->cur_in_msg, s->data_pos, *pos ^ s->masking_key[s->data_pos % 4]);
|
---|
146 |
|
---|
147 | s->data_pos++;
|
---|
148 | if (s->data_pos >= s->payload_len) {
|
---|
149 | ER ret;
|
---|
150 | s->state = 0;
|
---|
151 |
|
---|
152 | if (ws->cur_in_msg.ptr != NULL) {
|
---|
153 | ((ID *)ws->cur_in_msg.ptr->_gap)[0] = ws->wbsid;
|
---|
154 | ret = psnd_dtq(ecn_api_mailboxid, (intptr_t)ws->cur_in_msg.ptr);
|
---|
155 | if (ret != E_OK) {
|
---|
156 | syslog(LOG_WARNING, "websocket_input() : psnd_dtq(%d) result = %d", ecn_api_mailboxid, ret);
|
---|
157 | _ecn_fbs_del(ws->cur_in_msg);
|
---|
158 | }
|
---|
159 | }
|
---|
160 | memset(&ws->cur_in_msg, 0, sizeof(ws->cur_in_msg));
|
---|
161 | }
|
---|
162 | break;
|
---|
163 | }
|
---|
164 | }
|
---|
165 |
|
---|
166 | return 0;
|
---|
167 | }
|
---|
168 |
|
---|
169 | bool_t websocket_newdata(struct websocket *ws)
|
---|
170 | {
|
---|
171 | ws_state_t *s = &ws->wstate;
|
---|
172 | struct websocket *mws;
|
---|
173 | ER ret;
|
---|
174 | ECN_FBS_ID data;
|
---|
175 | ID wbsid;
|
---|
176 |
|
---|
177 | if(s->state != 0)
|
---|
178 | return true;
|
---|
179 |
|
---|
180 | if (cur_out_msg.ptr != NULL)
|
---|
181 | return (((ID *)cur_out_msg.ptr->_gap)[0] == ws->wbsid);
|
---|
182 |
|
---|
183 | for (;;) {
|
---|
184 | ret = prcv_dtq(WEBSOCKET_MBXID, (intptr_t *)&data.ptr);
|
---|
185 | if (ret == E_TMOUT)
|
---|
186 | return false;
|
---|
187 |
|
---|
188 | if (ret != E_OK) {
|
---|
189 | TOPPERS_assert_abort();
|
---|
190 | return false;
|
---|
191 | }
|
---|
192 |
|
---|
193 | wbsid = ((ID *)data.ptr->_gap)[0];
|
---|
194 | mws = websocket_getws(wbsid);
|
---|
195 | if ((mws != NULL) && (mws->wbsid != 0))
|
---|
196 | break;
|
---|
197 |
|
---|
198 | _ecn_fbs_del(cur_out_msg);
|
---|
199 | }
|
---|
200 |
|
---|
201 | cur_out_msg.ptr = data.ptr;
|
---|
202 |
|
---|
203 | return (wbsid == ws->wbsid);
|
---|
204 | }
|
---|
205 |
|
---|
206 | int websocket_output(struct websocket *ws, void *data, int len)
|
---|
207 | {
|
---|
208 | ws_state_t *s = &ws->wstate;
|
---|
209 | uint8_t *pos = (uint8_t *)data, *end = &((uint8_t *)data)[len];
|
---|
210 |
|
---|
211 | for(; pos < end; pos++){
|
---|
212 | switch (s->state)
|
---|
213 | {
|
---|
214 | // FIN RSV1-3 OPECODE
|
---|
215 | case 0:
|
---|
216 | if ((cur_out_msg.ptr == NULL) || (((ID *)cur_out_msg.ptr->_gap)[0] != ws->wbsid))
|
---|
217 | return (intptr_t)pos - (intptr_t)data;
|
---|
218 |
|
---|
219 | s->payload_len = _ecn_fbs_get_datalen(cur_out_msg);
|
---|
220 | if(s->payload_len == 0){
|
---|
221 | goto next;
|
---|
222 | }
|
---|
223 |
|
---|
224 | s->fin = 1;
|
---|
225 | s->opecode = text_frame;
|
---|
226 | s->masked = 0;//
|
---|
227 | s->masking_key[0] = 0;//0x01;
|
---|
228 | s->masking_key[1] = 0;//0x23;
|
---|
229 | s->masking_key[2] = 0;//0x45;
|
---|
230 | s->masking_key[3] = 0;//0x67;
|
---|
231 |
|
---|
232 | *pos = ((s->fin != 0) ? 0x80 : 0)
|
---|
233 | | ((char)s->opecode & 0x0F);
|
---|
234 | s->state = 1;
|
---|
235 | break;
|
---|
236 | // MASK Payload len
|
---|
237 | case 1:
|
---|
238 | if(s->payload_len < 126){
|
---|
239 | *pos = ((s->masked != 0) ? 0x80 : 0) | s->payload_len;
|
---|
240 | if (s->masked != 0) {
|
---|
241 | s->state = 10/*7bit*/;
|
---|
242 | }
|
---|
243 | else{
|
---|
244 | goto payload_check;
|
---|
245 | }
|
---|
246 | }
|
---|
247 | else if(s->payload_len < 0x10000){
|
---|
248 | *pos = ((s->masked != 0) ? 0x80 : 0) | 126;
|
---|
249 | s->state = 8/*7+16bit*/;
|
---|
250 | }
|
---|
251 | else{
|
---|
252 | *pos = ((s->masked != 0) ? 0x80 : 0) | 127;
|
---|
253 | s->state = 2/*7+64bit*/;
|
---|
254 | }
|
---|
255 | break;
|
---|
256 | // 64bit Extended payload length
|
---|
257 | case 2: case 3: case 4: case 5: case 6: case 7:
|
---|
258 | // 16bit Extended payload length
|
---|
259 | case 8: case 9:
|
---|
260 | *pos = (s->payload_len >> (8 * (9 - s->state)));
|
---|
261 | s->state++;
|
---|
262 | if((s->state == 10) && (s->masked == 0)){
|
---|
263 | goto payload_check;
|
---|
264 | }
|
---|
265 | break;
|
---|
266 | // Masking-key
|
---|
267 | case 10: case 11: case 12:
|
---|
268 | *pos = s->masking_key[s->state - 10];
|
---|
269 | s->state++;
|
---|
270 | break;
|
---|
271 | case 13:
|
---|
272 | *pos = s->masking_key[3];
|
---|
273 | s->state++;
|
---|
274 | payload_check:
|
---|
275 | s->data_pos = 0;
|
---|
276 | if (s->data_pos < s->payload_len)
|
---|
277 | s->state = 14;
|
---|
278 | else
|
---|
279 | goto next;
|
---|
280 | break;
|
---|
281 | // Payload buffer
|
---|
282 | default:
|
---|
283 | *pos = _ecn_fbs_peek(cur_out_msg, s->data_pos) ^ s->masking_key[s->data_pos % 4];
|
---|
284 |
|
---|
285 | s->data_pos++;
|
---|
286 | if(s->data_pos >= s->payload_len){
|
---|
287 | goto next;
|
---|
288 | }
|
---|
289 | break;
|
---|
290 | next:
|
---|
291 | _ecn_fbs_del(cur_out_msg);
|
---|
292 | memset(&cur_out_msg, 0, sizeof(cur_out_msg));
|
---|
293 | s->state = 0;
|
---|
294 | websocket_newdata(ws);
|
---|
295 | break;
|
---|
296 | }
|
---|
297 | }
|
---|
298 |
|
---|
299 | return (intptr_t)pos - (intptr_t)data;
|
---|
300 | }
|
---|