0
|
1
|
|
2 /*
|
|
3 * Copyright (C) Igor Sysoev
|
|
4 */
|
|
5
|
|
6
|
|
7 #include <ngx_config.h>
|
|
8 #include <ngx_core.h>
|
|
9
|
|
10
|
400
|
11 static ngx_int_t ngx_parse_unix_domain_url(ngx_pool_t *pool, ngx_url_t *u);
|
|
12 static ngx_int_t ngx_parse_inet_url(ngx_pool_t *pool, ngx_url_t *u);
|
362
|
13
|
|
14
|
348
|
15 /* AF_INET only */
|
|
16
|
|
17 in_addr_t
|
|
18 ngx_inet_addr(u_char *text, size_t len)
|
|
19 {
|
|
20 u_char *p, c;
|
|
21 in_addr_t addr;
|
|
22 ngx_uint_t octet, n;
|
|
23
|
|
24 addr = 0;
|
|
25 octet = 0;
|
|
26 n = 0;
|
|
27
|
|
28 for (p = text; p < text + len; p++) {
|
|
29
|
|
30 c = *p;
|
|
31
|
|
32 if (c >= '0' && c <= '9') {
|
|
33 octet = octet * 10 + (c - '0');
|
|
34 continue;
|
|
35 }
|
|
36
|
|
37 if (c == '.' && octet < 256) {
|
|
38 addr = (addr << 8) + octet;
|
|
39 octet = 0;
|
|
40 n++;
|
|
41 continue;
|
|
42 }
|
|
43
|
|
44 return INADDR_NONE;
|
|
45 }
|
|
46
|
|
47 if (n != 3) {
|
|
48 return INADDR_NONE;
|
|
49 }
|
|
50
|
|
51 if (octet < 256) {
|
|
52 addr = (addr << 8) + octet;
|
|
53 return htonl(addr);
|
|
54 }
|
|
55
|
|
56 return INADDR_NONE;
|
|
57 }
|
|
58
|
|
59
|
0
|
60 /* AF_INET only */
|
|
61
|
58
|
62 size_t
|
400
|
63 ngx_sock_ntop(struct sockaddr *sa, u_char *text, size_t len)
|
0
|
64 {
|
|
65 u_char *p;
|
28
|
66 struct sockaddr_in *sin;
|
0
|
67
|
400
|
68 if (sa->sa_family == AF_INET) {
|
0
|
69
|
400
|
70 sin = (struct sockaddr_in *) sa;
|
|
71 p = (u_char *) &sin->sin_addr;
|
0
|
72
|
400
|
73 return ngx_snprintf(text, len, "%ud.%ud.%ud.%ud",
|
|
74 p[0], p[1], p[2], p[3])
|
|
75 - text;
|
0
|
76 }
|
|
77
|
400
|
78 return 0;
|
0
|
79 }
|
|
80
|
362
|
81
|
58
|
82 size_t
|
|
83 ngx_inet_ntop(int family, void *addr, u_char *text, size_t len)
|
0
|
84 {
|
400
|
85 u_char *p;
|
0
|
86
|
400
|
87 if (family == AF_INET) {
|
0
|
88
|
400
|
89 p = (u_char *) addr;
|
0
|
90
|
400
|
91 return ngx_snprintf(text, len, "%ud.%ud.%ud.%ud",
|
|
92 p[0], p[1], p[2], p[3])
|
|
93 - text;
|
0
|
94 }
|
|
95
|
400
|
96 return 0;
|
362
|
97 }
|
|
98
|
|
99
|
0
|
100 /* AF_INET only */
|
|
101
|
58
|
102 ngx_int_t
|
|
103 ngx_ptocidr(ngx_str_t *text, void *cidr)
|
0
|
104 {
|
400
|
105 u_char *addr, *mask, *last;
|
|
106 ngx_int_t shift;
|
0
|
107 ngx_inet_cidr_t *in_cidr;
|
|
108
|
|
109 in_cidr = cidr;
|
400
|
110 addr = text->data;
|
|
111 last = addr + text->len;
|
0
|
112
|
400
|
113 mask = ngx_strlchr(addr, last, '/');
|
0
|
114
|
400
|
115 in_cidr->addr = ngx_inet_addr(addr, (mask ? mask : last) - addr);
|
|
116
|
0
|
117 if (in_cidr->addr == INADDR_NONE) {
|
|
118 return NGX_ERROR;
|
|
119 }
|
|
120
|
400
|
121 if (mask == NULL) {
|
|
122 in_cidr->mask = 0xffffffff;
|
|
123 return NGX_OK;
|
|
124 }
|
|
125
|
|
126 mask++;
|
|
127
|
|
128 shift = ngx_atoi(mask, last - mask);
|
|
129 if (shift == NGX_ERROR) {
|
0
|
130 return NGX_ERROR;
|
|
131 }
|
|
132
|
400
|
133 if (shift == 0) {
|
0
|
134
|
|
135 /* the x86 compilers use the shl instruction that shifts by modulo 32 */
|
|
136
|
|
137 in_cidr->mask = 0;
|
400
|
138
|
|
139 if (in_cidr->addr == 0) {
|
|
140 return NGX_OK;
|
|
141 }
|
|
142
|
|
143 return NGX_DONE;
|
0
|
144 }
|
|
145
|
400
|
146 in_cidr->mask = htonl((ngx_uint_t) (0 - (1 << (32 - shift))));
|
0
|
147
|
326
|
148 if (in_cidr->addr == (in_cidr->addr & in_cidr->mask)) {
|
|
149 return NGX_OK;
|
|
150 }
|
|
151
|
|
152 in_cidr->addr &= in_cidr->mask;
|
|
153
|
|
154 return NGX_DONE;
|
0
|
155 }
|
|
156
|
|
157
|
200
|
158 ngx_int_t
|
340
|
159 ngx_parse_url(ngx_pool_t *pool, ngx_url_t *u)
|
200
|
160 {
|
400
|
161 u_char *p;
|
200
|
162
|
|
163 p = u->url.data;
|
|
164
|
286
|
165 if (ngx_strncasecmp(p, (u_char *) "unix:", 5) == 0) {
|
400
|
166 return ngx_parse_unix_domain_url(pool, u);
|
200
|
167 }
|
|
168
|
|
169 if ((p[0] == ':' || p[0] == '/') && !u->listen) {
|
|
170 u->err = "invalid host";
|
|
171 return NGX_ERROR;
|
|
172 }
|
|
173
|
400
|
174 return ngx_parse_inet_url(pool, u);
|
|
175 }
|
266
|
176
|
200
|
177
|
400
|
178 static ngx_int_t
|
|
179 ngx_parse_unix_domain_url(ngx_pool_t *pool, ngx_url_t *u)
|
|
180 {
|
|
181 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
182 u_char *path, *uri, *last;
|
|
183 size_t len;
|
|
184 struct sockaddr_un *saun;
|
200
|
185
|
400
|
186 len = u->url.len;
|
|
187 path = u->url.data;
|
200
|
188
|
400
|
189 path += 5;
|
|
190 len -= 5;
|
|
191
|
|
192 if (u->uri_part) {
|
200
|
193
|
400
|
194 last = path + len;
|
|
195 uri = ngx_strlchr(path, last, ':');
|
200
|
196
|
400
|
197 if (uri) {
|
|
198 len = uri - path;
|
|
199 uri++;
|
|
200 u->uri.len = last - uri;
|
|
201 u->uri.data = uri;
|
200
|
202 }
|
|
203 }
|
|
204
|
400
|
205 if (len == 0) {
|
|
206 u->err = "no path in the unix domain socket";
|
|
207 return NGX_ERROR;
|
|
208 }
|
|
209
|
|
210 u->host.len = len++;
|
|
211 u->host.data = path;
|
|
212 u->family = AF_UNIX;
|
|
213
|
|
214 if (len > sizeof(saun->sun_path)) {
|
|
215 u->err = "too long path in the unix domain socket";
|
|
216 return NGX_ERROR;
|
|
217 }
|
200
|
218
|
400
|
219 u->addrs = ngx_pcalloc(pool, sizeof(ngx_peer_addr_t));
|
|
220 if (u->addrs == NULL) {
|
|
221 return NGX_ERROR;
|
|
222 }
|
|
223
|
|
224 saun = ngx_pcalloc(pool, sizeof(struct sockaddr_un));
|
|
225 if (saun == NULL) {
|
|
226 return NGX_ERROR;
|
|
227 }
|
|
228
|
|
229 u->naddrs = 1;
|
|
230
|
|
231 saun->sun_family = AF_UNIX;
|
|
232 (void) ngx_cpystrn((u_char *) saun->sun_path, path, len);
|
|
233
|
|
234 u->addrs[0].sockaddr = (struct sockaddr *) saun;
|
|
235 u->addrs[0].socklen = sizeof(struct sockaddr_un);
|
|
236 u->addrs[0].name.len = len + 4;
|
|
237 u->addrs[0].name.data = u->url.data;
|
200
|
238
|
400
|
239 return NGX_OK;
|
|
240
|
|
241 #else
|
|
242
|
|
243 u->err = "the unix domain sockets are not supported on this platform";
|
|
244
|
|
245 return NGX_ERROR;
|
|
246
|
|
247 #endif
|
|
248 }
|
|
249
|
|
250
|
|
251 static ngx_int_t
|
|
252 ngx_parse_inet_url(ngx_pool_t *pool, ngx_url_t *u)
|
|
253 {
|
|
254 u_char *p, *host, *port, *last, *uri;
|
|
255 size_t len;
|
|
256 ngx_int_t n;
|
|
257 struct hostent *h;
|
|
258
|
|
259 u->family = AF_INET;
|
|
260
|
|
261 host = u->url.data;
|
|
262
|
|
263 last = host + u->url.len;
|
|
264
|
|
265 port = ngx_strlchr(host, last, ':');
|
|
266
|
|
267 uri = ngx_strlchr(port ? port : host, last, '/');
|
|
268
|
|
269 if (uri) {
|
|
270 if (u->listen || !u->uri_part) {
|
|
271 u->err = "invalid host";
|
|
272 return NGX_ERROR;
|
200
|
273 }
|
|
274
|
400
|
275 u->uri.len = last - uri;
|
|
276 u->uri.data = uri;
|
|
277
|
|
278 last = uri;
|
|
279 }
|
200
|
280
|
400
|
281 if (port) {
|
|
282 port++;
|
|
283
|
|
284 len = last - port;
|
|
285
|
|
286 if (len == 0) {
|
200
|
287 u->err = "invalid port";
|
|
288 return NGX_ERROR;
|
|
289 }
|
|
290
|
400
|
291 n = ngx_atoi(port, len);
|
200
|
292
|
400
|
293 if (n < 1 || n > 65536) {
|
|
294 u->err = "invalid port";
|
|
295 return NGX_ERROR;
|
252
|
296 }
|
|
297
|
400
|
298 u->port = (in_port_t) n;
|
252
|
299
|
400
|
300 u->port_text.len = len;
|
|
301 u->port_text.data = port;
|
|
302
|
|
303 last = port - 1;
|
252
|
304
|
400
|
305 } else {
|
|
306 if (uri == NULL) {
|
252
|
307
|
400
|
308 if (u->listen) {
|
252
|
309
|
400
|
310 /* test value as port only */
|
|
311
|
|
312 n = ngx_atoi(host, last - host);
|
252
|
313
|
400
|
314 if (n != NGX_ERROR) {
|
|
315
|
|
316 if (n < 1 || n > 65536) {
|
|
317 u->err = "invalid port";
|
|
318 return NGX_ERROR;
|
|
319 }
|
252
|
320
|
400
|
321 u->port = (in_port_t) n;
|
|
322
|
|
323 u->port_text.len = last - host;
|
|
324 u->port_text.data = host;
|
|
325
|
|
326 return NGX_OK;
|
252
|
327 }
|
|
328 }
|
|
329 }
|
|
330
|
400
|
331 u->no_port = 1;
|
200
|
332 }
|
|
333
|
400
|
334 len = last - host;
|
|
335
|
|
336 if (len == 0) {
|
200
|
337 u->err = "no host";
|
|
338 return NGX_ERROR;
|
|
339 }
|
|
340
|
400
|
341 if (len == 1 && *host == '*') {
|
|
342 len = 0;
|
|
343 }
|
|
344
|
|
345 u->host.len = len;
|
|
346 u->host.data = host;
|
|
347
|
260
|
348 if (u->no_resolve) {
|
|
349 return NGX_OK;
|
200
|
350 }
|
|
351
|
400
|
352 if (len++) {
|
|
353
|
|
354 p = ngx_alloc(len, pool->log);
|
|
355 if (p == NULL) {
|
|
356 return NGX_ERROR;
|
|
357 }
|
|
358
|
|
359 (void) ngx_cpystrn(p, host, len);
|
|
360
|
|
361 u->addr.in_addr = inet_addr((const char *) p);
|
|
362
|
|
363 if (u->addr.in_addr == INADDR_NONE) {
|
|
364 h = gethostbyname((const char *) p);
|
|
365
|
|
366 if (h == NULL || h->h_addr_list[0] == NULL) {
|
|
367 ngx_free(p);
|
|
368 u->err = "host not found";
|
|
369 return NGX_ERROR;
|
|
370 }
|
|
371
|
|
372 u->addr.in_addr = *(in_addr_t *) (h->h_addr_list[0]);
|
|
373 }
|
|
374
|
|
375 ngx_free(p);
|
|
376
|
|
377 } else {
|
|
378 u->addr.in_addr = INADDR_ANY;
|
|
379 }
|
|
380
|
266
|
381 if (u->no_port) {
|
|
382 u->port = u->default_port;
|
|
383 }
|
|
384
|
400
|
385 if (u->listen) {
|
|
386 return NGX_OK;
|
266
|
387 }
|
|
388
|
340
|
389 if (ngx_inet_resolve_host(pool, u) != NGX_OK) {
|
200
|
390 return NGX_ERROR;
|
|
391 }
|
|
392
|
|
393 return NGX_OK;
|
|
394 }
|
|
395
|
|
396
|
260
|
397 ngx_int_t
|
340
|
398 ngx_inet_resolve_host(ngx_pool_t *pool, ngx_url_t *u)
|
200
|
399 {
|
266
|
400 u_char *p, *host;
|
200
|
401 size_t len;
|
|
402 in_addr_t in_addr;
|
|
403 ngx_uint_t i;
|
|
404 struct hostent *h;
|
|
405 struct sockaddr_in *sin;
|
|
406
|
340
|
407 host = ngx_alloc(u->host.len + 1, pool->log);
|
200
|
408 if (host == NULL) {
|
260
|
409 return NGX_ERROR;
|
200
|
410 }
|
|
411
|
260
|
412 (void) ngx_cpystrn(host, u->host.data, u->host.len + 1);
|
200
|
413
|
|
414 /* AF_INET only */
|
|
415
|
|
416 in_addr = inet_addr((char *) host);
|
|
417
|
|
418 if (in_addr == INADDR_NONE) {
|
|
419 h = gethostbyname((char *) host);
|
|
420
|
340
|
421 ngx_free(host);
|
|
422
|
200
|
423 if (h == NULL || h->h_addr_list[0] == NULL) {
|
260
|
424 u->err = "host not found";
|
|
425 return NGX_ERROR;
|
200
|
426 }
|
|
427
|
260
|
428 if (u->one_addr == 0) {
|
|
429 for (i = 0; h->h_addr_list[i] != NULL; i++) { /* void */ }
|
|
430
|
|
431 } else {
|
|
432 i = 1;
|
|
433 }
|
200
|
434
|
|
435 /* MP: ngx_shared_palloc() */
|
|
436
|
340
|
437 u->addrs = ngx_pcalloc(pool, i * sizeof(ngx_peer_addr_t));
|
260
|
438 if (u->addrs == NULL) {
|
|
439 return NGX_ERROR;
|
200
|
440 }
|
|
441
|
260
|
442 u->naddrs = i;
|
200
|
443
|
|
444 for (i = 0; h->h_addr_list[i] != NULL; i++) {
|
|
445
|
340
|
446 sin = ngx_pcalloc(pool, sizeof(struct sockaddr_in));
|
200
|
447 if (sin == NULL) {
|
260
|
448 return NGX_ERROR;
|
200
|
449 }
|
|
450
|
|
451 sin->sin_family = AF_INET;
|
266
|
452 sin->sin_port = htons(u->port);
|
200
|
453 sin->sin_addr.s_addr = *(in_addr_t *) (h->h_addr_list[i]);
|
|
454
|
260
|
455 u->addrs[i].sockaddr = (struct sockaddr *) sin;
|
|
456 u->addrs[i].socklen = sizeof(struct sockaddr_in);
|
200
|
457
|
400
|
458 len = NGX_INET_ADDRSTRLEN + sizeof(":65536") - 1;
|
200
|
459
|
382
|
460 p = ngx_pnalloc(pool, len);
|
266
|
461 if (p == NULL) {
|
260
|
462 return NGX_ERROR;
|
200
|
463 }
|
|
464
|
400
|
465 len = ngx_sock_ntop((struct sockaddr *) sin, p, len);
|
200
|
466
|
266
|
467 u->addrs[i].name.len = ngx_sprintf(&p[len], ":%d", u->port) - p;
|
|
468 u->addrs[i].name.data = p;
|
200
|
469 }
|
|
470
|
|
471 } else {
|
|
472
|
340
|
473 ngx_free(host);
|
|
474
|
200
|
475 /* MP: ngx_shared_palloc() */
|
|
476
|
340
|
477 u->addrs = ngx_pcalloc(pool, sizeof(ngx_peer_addr_t));
|
260
|
478 if (u->addrs == NULL) {
|
|
479 return NGX_ERROR;
|
200
|
480 }
|
|
481
|
340
|
482 sin = ngx_pcalloc(pool, sizeof(struct sockaddr_in));
|
200
|
483 if (sin == NULL) {
|
260
|
484 return NGX_ERROR;
|
200
|
485 }
|
|
486
|
260
|
487 u->naddrs = 1;
|
200
|
488
|
|
489 sin->sin_family = AF_INET;
|
266
|
490 sin->sin_port = htons(u->port);
|
200
|
491 sin->sin_addr.s_addr = in_addr;
|
|
492
|
260
|
493 u->addrs[0].sockaddr = (struct sockaddr *) sin;
|
|
494 u->addrs[0].socklen = sizeof(struct sockaddr_in);
|
200
|
495
|
382
|
496 p = ngx_pnalloc(pool, u->host.len + sizeof(":65536") - 1);
|
266
|
497 if (p == NULL) {
|
260
|
498 return NGX_ERROR;
|
200
|
499 }
|
|
500
|
266
|
501 u->addrs[0].name.len = ngx_sprintf(p, "%V:%d", &u->host, u->port) - p;
|
|
502 u->addrs[0].name.data = p;
|
200
|
503 }
|
|
504
|
260
|
505 return NGX_OK;
|
200
|
506 }
|