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b1322259 RS |
1 | /* |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. | |
d02b48c6 | 3 | * |
b1322259 RS |
4 | * Licensed under the OpenSSL license (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
d02b48c6 RE |
8 | */ |
9 | ||
d02b48c6 | 10 | #include <stdio.h> |
58964a49 | 11 | #include <stdlib.h> |
d02b48c6 | 12 | #include <errno.h> |
28a0841b RL |
13 | #include "bio_lcl.h" |
14 | #if defined(NETWARE_CLIB) | |
15 | # include <sys/ioctl.h> | |
eef0c1f3 DSH |
16 | NETDB_DEFINE_CONTEXT |
17 | #endif | |
9ba4cc00 | 18 | #ifndef OPENSSL_NO_SOCK |
0f113f3e MC |
19 | # define SOCKET_PROTOCOL IPPROTO_TCP |
20 | # ifdef SO_MAXCONN | |
21 | # define MAX_LISTEN SO_MAXCONN | |
22 | # elif defined(SOMAXCONN) | |
23 | # define MAX_LISTEN SOMAXCONN | |
24 | # else | |
25 | # define MAX_LISTEN 32 | |
26 | # endif | |
1fbab1dc | 27 | # if defined(OPENSSL_SYS_WINDOWS) |
0f113f3e MC |
28 | static int wsa_init_done = 0; |
29 | # endif | |
d02b48c6 | 30 | |
d33b215b | 31 | # if OPENSSL_API_COMPAT < 0x10100000L |
6b691a5c | 32 | int BIO_get_host_ip(const char *str, unsigned char *ip) |
0f113f3e | 33 | { |
5bca70ca RL |
34 | BIO_ADDRINFO *res = NULL; |
35 | int ret = 0; | |
0f113f3e | 36 | |
0f113f3e MC |
37 | if (BIO_sock_init() != 1) |
38 | return 0; /* don't generate another error code here */ | |
39 | ||
5bca70ca RL |
40 | if (BIO_lookup(str, NULL, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) { |
41 | size_t l; | |
0f113f3e | 42 | |
5bca70ca RL |
43 | if (BIO_ADDRINFO_family(res) != AF_INET) { |
44 | BIOerr(BIO_F_BIO_GET_HOST_IP, | |
45 | BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET); | |
86f31dd9 MC |
46 | } else if (BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), NULL, &l)) { |
47 | /* | |
48 | * Because only AF_INET addresses will reach this far, we can assert | |
49 | * that l should be 4 | |
50 | */ | |
51 | if (ossl_assert(l == 4)) | |
52 | ret = BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), ip, &l); | |
5bca70ca RL |
53 | } |
54 | BIO_ADDRINFO_free(res); | |
55 | } else { | |
56 | ERR_add_error_data(2, "host=", str); | |
0f113f3e | 57 | } |
ba9f2808 | 58 | |
5bca70ca | 59 | return ret; |
0f113f3e | 60 | } |
d02b48c6 | 61 | |
6b691a5c | 62 | int BIO_get_port(const char *str, unsigned short *port_ptr) |
0f113f3e | 63 | { |
5bca70ca RL |
64 | BIO_ADDRINFO *res = NULL; |
65 | int ret = 0; | |
0f113f3e MC |
66 | |
67 | if (str == NULL) { | |
68 | BIOerr(BIO_F_BIO_GET_PORT, BIO_R_NO_PORT_DEFINED); | |
69 | return (0); | |
70 | } | |
5bca70ca RL |
71 | |
72 | if (BIO_sock_init() != 1) | |
73 | return 0; /* don't generate another error code here */ | |
74 | ||
75 | if (BIO_lookup(NULL, str, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) { | |
76 | if (BIO_ADDRINFO_family(res) != AF_INET) { | |
77 | BIOerr(BIO_F_BIO_GET_PORT, | |
78 | BIO_R_ADDRINFO_ADDR_IS_NOT_AF_INET); | |
79 | } else { | |
80 | *port_ptr = ntohs(BIO_ADDR_rawport(BIO_ADDRINFO_address(res))); | |
81 | ret = 1; | |
0f113f3e | 82 | } |
5bca70ca RL |
83 | BIO_ADDRINFO_free(res); |
84 | } else { | |
85 | ERR_add_error_data(2, "host=", str); | |
0f113f3e | 86 | } |
5bca70ca RL |
87 | |
88 | return ret; | |
0f113f3e | 89 | } |
d33b215b | 90 | # endif |
d02b48c6 | 91 | |
6b691a5c | 92 | int BIO_sock_error(int sock) |
0f113f3e | 93 | { |
5bca70ca | 94 | int j = 0, i; |
2bd8c853 | 95 | socklen_t size = sizeof(j); |
5bca70ca | 96 | |
0f113f3e MC |
97 | /* |
98 | * Note: under Windows the third parameter is of type (char *) whereas | |
99 | * under other systems it is (void *) if you don't have a cast it will | |
100 | * choke the compiler: if you do have a cast then you can either go for | |
101 | * (char *) or (void *). | |
102 | */ | |
5bca70ca | 103 | i = getsockopt(sock, SOL_SOCKET, SO_ERROR, (void *)&j, &size); |
0f113f3e | 104 | if (i < 0) |
2bd8c853 | 105 | return (get_last_socket_error()); |
0f113f3e MC |
106 | else |
107 | return (j); | |
108 | } | |
109 | ||
d33b215b | 110 | # if OPENSSL_API_COMPAT < 0x10100000L |
6b691a5c | 111 | struct hostent *BIO_gethostbyname(const char *name) |
0f113f3e | 112 | { |
0f113f3e MC |
113 | /* |
114 | * Caching gethostbyname() results forever is wrong, so we have to let | |
115 | * the true gethostbyname() worry about this | |
116 | */ | |
5bca70ca | 117 | # if (defined(NETWARE_BSDSOCK) && !defined(__NOVELL_LIBC__)) |
0f113f3e | 118 | return gethostbyname((char *)name); |
5bca70ca | 119 | # else |
4d428cd2 | 120 | return gethostbyname(name); |
5bca70ca | 121 | # endif |
0f113f3e | 122 | } |
d33b215b | 123 | # endif |
c602e7f4 | 124 | |
6b691a5c | 125 | int BIO_sock_init(void) |
0f113f3e MC |
126 | { |
127 | # ifdef OPENSSL_SYS_WINDOWS | |
128 | static struct WSAData wsa_state; | |
129 | ||
130 | if (!wsa_init_done) { | |
131 | int err; | |
132 | ||
133 | wsa_init_done = 1; | |
134 | memset(&wsa_state, 0, sizeof(wsa_state)); | |
135 | /* | |
136 | * Not making wsa_state available to the rest of the code is formally | |
0d4fb843 | 137 | * wrong. But the structures we use are [believed to be] invariable |
0f113f3e MC |
138 | * among Winsock DLLs, while API availability is [expected to be] |
139 | * probed at run-time with DSO_global_lookup. | |
140 | */ | |
141 | if (WSAStartup(0x0202, &wsa_state) != 0) { | |
142 | err = WSAGetLastError(); | |
143 | SYSerr(SYS_F_WSASTARTUP, err); | |
144 | BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP); | |
145 | return (-1); | |
146 | } | |
147 | } | |
148 | # endif /* OPENSSL_SYS_WINDOWS */ | |
149 | # ifdef WATT32 | |
150 | extern int _watt_do_exit; | |
151 | _watt_do_exit = 0; /* don't make sock_init() call exit() */ | |
152 | if (sock_init()) | |
153 | return (-1); | |
154 | # endif | |
155 | ||
208fb891 | 156 | return 1; |
0f113f3e | 157 | } |
d02b48c6 | 158 | |
b3599dbb | 159 | void bio_sock_cleanup_int(void) |
0f113f3e MC |
160 | { |
161 | # ifdef OPENSSL_SYS_WINDOWS | |
162 | if (wsa_init_done) { | |
163 | wsa_init_done = 0; | |
4d8743f4 | 164 | WSACleanup(); |
0f113f3e | 165 | } |
0f113f3e MC |
166 | # endif |
167 | } | |
d02b48c6 | 168 | |
c029841e | 169 | int BIO_socket_ioctl(int fd, long type, void *arg) |
0f113f3e MC |
170 | { |
171 | int i; | |
172 | ||
173 | # ifdef __DJGPP__ | |
174 | i = ioctlsocket(fd, type, (char *)arg); | |
175 | # else | |
176 | # if defined(OPENSSL_SYS_VMS) | |
35a1cc90 MC |
177 | /*- |
178 | * 2011-02-18 SMS. | |
179 | * VMS ioctl() can't tolerate a 64-bit "void *arg", but we | |
180 | * observe that all the consumers pass in an "unsigned long *", | |
181 | * so we arrange a local copy with a short pointer, and use | |
182 | * that, instead. | |
183 | */ | |
0f113f3e MC |
184 | # if __INITIAL_POINTER_SIZE == 64 |
185 | # define ARG arg_32p | |
186 | # pragma pointer_size save | |
187 | # pragma pointer_size 32 | |
188 | unsigned long arg_32; | |
189 | unsigned long *arg_32p; | |
190 | # pragma pointer_size restore | |
191 | arg_32p = &arg_32; | |
192 | arg_32 = *((unsigned long *)arg); | |
193 | # else /* __INITIAL_POINTER_SIZE == 64 */ | |
194 | # define ARG arg | |
195 | # endif /* __INITIAL_POINTER_SIZE == 64 [else] */ | |
196 | # else /* defined(OPENSSL_SYS_VMS) */ | |
197 | # define ARG arg | |
198 | # endif /* defined(OPENSSL_SYS_VMS) [else] */ | |
199 | ||
200 | i = ioctlsocket(fd, type, ARG); | |
201 | # endif /* __DJGPP__ */ | |
202 | if (i < 0) | |
203 | SYSerr(SYS_F_IOCTLSOCKET, get_last_socket_error()); | |
204 | return (i); | |
205 | } | |
0f113f3e | 206 | |
d33b215b | 207 | # if OPENSSL_API_COMPAT < 0x10100000L |
6b691a5c | 208 | int BIO_get_accept_socket(char *host, int bind_mode) |
0f113f3e | 209 | { |
5bca70ca RL |
210 | int s = INVALID_SOCKET; |
211 | char *h = NULL, *p = NULL; | |
212 | BIO_ADDRINFO *res = NULL; | |
0f113f3e | 213 | |
5bca70ca RL |
214 | if (!BIO_parse_hostserv(host, &h, &p, BIO_PARSE_PRIO_SERV)) |
215 | return INVALID_SOCKET; | |
0f113f3e | 216 | |
5bca70ca RL |
217 | if (BIO_sock_init() != 1) |
218 | return INVALID_SOCKET; | |
0f113f3e | 219 | |
5bca70ca | 220 | if (BIO_lookup(h, p, BIO_LOOKUP_SERVER, AF_UNSPEC, SOCK_STREAM, &res) != 0) |
0f113f3e MC |
221 | goto err; |
222 | ||
5bca70ca RL |
223 | if ((s = BIO_socket(BIO_ADDRINFO_family(res), BIO_ADDRINFO_socktype(res), |
224 | BIO_ADDRINFO_protocol(res), 0)) == INVALID_SOCKET) { | |
225 | s = INVALID_SOCKET; | |
0f113f3e MC |
226 | goto err; |
227 | } | |
0f113f3e | 228 | |
5bca70ca RL |
229 | if (!BIO_listen(s, BIO_ADDRINFO_address(res), |
230 | bind_mode ? BIO_SOCK_REUSEADDR : 0)) { | |
231 | BIO_closesocket(s); | |
232 | s = INVALID_SOCKET; | |
0f113f3e | 233 | } |
5bca70ca | 234 | |
0f113f3e | 235 | err: |
5bca70ca RL |
236 | BIO_ADDRINFO_free(res); |
237 | OPENSSL_free(h); | |
238 | OPENSSL_free(p); | |
239 | ||
240 | return s; | |
0f113f3e | 241 | } |
d02b48c6 | 242 | |
5bca70ca | 243 | int BIO_accept(int sock, char **ip_port) |
0f113f3e | 244 | { |
d9d8e7a9 | 245 | BIO_ADDR res; |
5bca70ca | 246 | int ret = -1; |
0f113f3e | 247 | |
d9d8e7a9 | 248 | ret = BIO_accept_ex(sock, &res, 0); |
b13fdc48 | 249 | if (ret == (int)INVALID_SOCKET) { |
5bca70ca RL |
250 | if (BIO_sock_should_retry(ret)) { |
251 | ret = -2; | |
252 | goto end; | |
253 | } | |
0f113f3e MC |
254 | SYSerr(SYS_F_ACCEPT, get_last_socket_error()); |
255 | BIOerr(BIO_F_BIO_ACCEPT, BIO_R_ACCEPT_ERROR); | |
256 | goto end; | |
257 | } | |
258 | ||
5bca70ca | 259 | if (ip_port != NULL) { |
d9d8e7a9 RS |
260 | char *host = BIO_ADDR_hostname_string(&res, 1); |
261 | char *port = BIO_ADDR_service_string(&res, 1); | |
ad9a0562 MC |
262 | if (host != NULL && port != NULL) |
263 | *ip_port = OPENSSL_zalloc(strlen(host) + strlen(port) + 2); | |
264 | else | |
265 | *ip_port = NULL; | |
266 | ||
267 | if (*ip_port == NULL) { | |
268 | BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE); | |
269 | BIO_closesocket(ret); | |
270 | ret = (int)INVALID_SOCKET; | |
271 | } else { | |
272 | strcpy(*ip_port, host); | |
273 | strcat(*ip_port, ":"); | |
274 | strcat(*ip_port, port); | |
275 | } | |
5bca70ca RL |
276 | OPENSSL_free(host); |
277 | OPENSSL_free(port); | |
0f113f3e | 278 | } |
5bca70ca | 279 | |
0f113f3e | 280 | end: |
5bca70ca | 281 | return ret; |
0f113f3e | 282 | } |
d33b215b | 283 | # endif |
d02b48c6 | 284 | |
6b691a5c | 285 | int BIO_set_tcp_ndelay(int s, int on) |
0f113f3e MC |
286 | { |
287 | int ret = 0; | |
288 | # if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP)) | |
289 | int opt; | |
d02b48c6 | 290 | |
0f113f3e MC |
291 | # ifdef SOL_TCP |
292 | opt = SOL_TCP; | |
293 | # else | |
294 | # ifdef IPPROTO_TCP | |
295 | opt = IPPROTO_TCP; | |
296 | # endif | |
297 | # endif | |
dfeab068 | 298 | |
0f113f3e MC |
299 | ret = setsockopt(s, opt, TCP_NODELAY, (char *)&on, sizeof(on)); |
300 | # endif | |
301 | return (ret == 0); | |
302 | } | |
303 | ||
304 | int BIO_socket_nbio(int s, int mode) | |
305 | { | |
306 | int ret = -1; | |
307 | int l; | |
308 | ||
309 | l = mode; | |
310 | # ifdef FIONBIO | |
27f172d9 RS |
311 | l = mode; |
312 | ||
0f113f3e | 313 | ret = BIO_socket_ioctl(s, FIONBIO, &l); |
27f172d9 RS |
314 | # elif defined(F_GETFL) && defined(F_SETFL) && (defined(O_NONBLOCK) || defined(FNDELAY)) |
315 | /* make sure this call always pushes an error level; BIO_socket_ioctl() does so, so we do too. */ | |
316 | ||
317 | l = fcntl(s, F_GETFL, 0); | |
318 | if (l == -1) { | |
319 | SYSerr(SYS_F_FCNTL, get_last_rtl_error()); | |
320 | ret = -1; | |
321 | } else { | |
322 | # if defined(O_NONBLOCK) | |
323 | l &= ~O_NONBLOCK; | |
324 | # else | |
325 | l &= ~FNDELAY; /* BSD4.x */ | |
326 | # endif | |
327 | if (mode) { | |
328 | # if defined(O_NONBLOCK) | |
329 | l |= O_NONBLOCK; | |
330 | # else | |
331 | l |= FNDELAY; /* BSD4.x */ | |
332 | # endif | |
333 | } | |
334 | ret = fcntl(s, F_SETFL, l); | |
335 | ||
336 | if (ret < 0) { | |
337 | SYSerr(SYS_F_FCNTL, get_last_rtl_error()); | |
338 | } | |
339 | } | |
340 | # else | |
341 | /* make sure this call always pushes an error level; BIO_socket_ioctl() does so, so we do too. */ | |
342 | BIOerr(BIO_F_BIO_SOCKET_NBIO, ERR_R_PASSED_INVALID_ARGUMENT); | |
0f113f3e | 343 | # endif |
27f172d9 | 344 | |
0f113f3e MC |
345 | return (ret == 0); |
346 | } | |
d33b215b RL |
347 | |
348 | int BIO_sock_info(int sock, | |
349 | enum BIO_sock_info_type type, union BIO_sock_info_u *info) | |
350 | { | |
351 | switch (type) { | |
352 | case BIO_SOCK_INFO_ADDRESS: | |
353 | { | |
354 | socklen_t addr_len; | |
355 | int ret = 0; | |
356 | addr_len = sizeof(*info->addr); | |
357 | ret = getsockname(sock, BIO_ADDR_sockaddr_noconst(info->addr), | |
358 | &addr_len); | |
359 | if (ret == -1) { | |
360 | SYSerr(SYS_F_GETSOCKNAME, get_last_socket_error()); | |
361 | BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_GETSOCKNAME_ERROR); | |
362 | return 0; | |
363 | } | |
59d9bb59 | 364 | if ((size_t)addr_len > sizeof(*info->addr)) { |
d33b215b RL |
365 | BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_GETSOCKNAME_TRUNCATED_ADDRESS); |
366 | return 0; | |
367 | } | |
368 | } | |
369 | break; | |
370 | default: | |
371 | BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_UNKNOWN_INFO_TYPE); | |
372 | return 0; | |
373 | } | |
374 | return 1; | |
375 | } | |
376 | ||
4a1fbd13 | 377 | #endif |