Mercurial > dovecot > core-2.2
annotate src/lib/network.c @ 8590:b9faf4db2a9f HEAD
Updated copyright notices to include year 2009.
author | Timo Sirainen <tss@iki.fi> |
---|---|
date | Tue, 06 Jan 2009 09:25:38 -0500 |
parents | ec83f6dcb585 |
children | 95fba8612a87 |
rev | line source |
---|---|
8590
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Updated copyright notices to include year 2009.
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1 /* Copyright (c) 1999-2009 Dovecot authors, see the included COPYING file */ |
0 | 2 |
3 #include "lib.h" | |
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4 #include "close-keep-errno.h" |
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5 #include "fd-set-nonblock.h" |
0 | 6 #include "network.h" |
7 | |
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8 #include <stdlib.h> |
0 | 9 #include <unistd.h> |
10 #include <fcntl.h> | |
11 #include <ctype.h> | |
12 #include <sys/un.h> | |
13 #include <netinet/tcp.h> | |
14 | |
15 union sockaddr_union { | |
16 struct sockaddr sa; | |
17 struct sockaddr_in sin; | |
18 #ifdef HAVE_IPV6 | |
19 struct sockaddr_in6 sin6; | |
20 #endif | |
21 }; | |
22 | |
23 #ifdef HAVE_IPV6 | |
24 # define SIZEOF_SOCKADDR(so) ((so).sa.sa_family == AF_INET6 ? \ | |
25 sizeof(so.sin6) : sizeof(so.sin)) | |
26 #else | |
27 # define SIZEOF_SOCKADDR(so) (sizeof(so.sin)) | |
28 #endif | |
29 | |
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30 bool net_ip_compare(const struct ip_addr *ip1, const struct ip_addr *ip2) |
0 | 31 { |
32 if (ip1->family != ip2->family) | |
33 return 0; | |
34 | |
35 #ifdef HAVE_IPV6 | |
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36 if (ip1->family == AF_INET6) { |
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37 return memcmp(&ip1->u.ip6, &ip2->u.ip6, |
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38 sizeof(ip1->u.ip6)) == 0; |
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39 } |
0 | 40 #endif |
41 | |
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42 return memcmp(&ip1->u.ip4, &ip2->u.ip4, sizeof(ip1->u.ip4)) == 0; |
0 | 43 } |
44 | |
5865 | 45 unsigned int net_ip_hash(const struct ip_addr *ip) |
46 { | |
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47 const unsigned char *p; |
5865 | 48 unsigned int len, g, h = 0; |
49 | |
50 #ifdef HAVE_IPV6 | |
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51 if (ip->family == AF_INET6) { |
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52 p = ip->u.ip6.s6_addr; |
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53 len = sizeof(ip->u.ip6); |
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54 } else |
5865 | 55 #endif |
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56 { |
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57 return ip->u.ip4.s_addr; |
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58 } |
5865 | 59 |
60 for (; len > 0; len--, p++) { | |
61 h = (h << 4) + *p; | |
62 if ((g = h & 0xf0000000UL)) { | |
63 h = h ^ (g >> 24); | |
64 h = h ^ g; | |
65 } | |
66 } | |
67 | |
68 return h; | |
69 } | |
0 | 70 |
71 /* copy IP to sockaddr */ | |
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72 static inline void |
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73 sin_set_ip(union sockaddr_union *so, const struct ip_addr *ip) |
0 | 74 { |
75 if (ip == NULL) { | |
76 #ifdef HAVE_IPV6 | |
77 so->sin6.sin6_family = AF_INET6; | |
78 so->sin6.sin6_addr = in6addr_any; | |
79 #else | |
80 so->sin.sin_family = AF_INET; | |
81 so->sin.sin_addr.s_addr = INADDR_ANY; | |
82 #endif | |
83 return; | |
84 } | |
85 | |
86 so->sin.sin_family = ip->family; | |
87 #ifdef HAVE_IPV6 | |
88 if (ip->family == AF_INET6) | |
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89 memcpy(&so->sin6.sin6_addr, &ip->u.ip6, sizeof(ip->u.ip6)); |
0 | 90 else |
91 #endif | |
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92 memcpy(&so->sin.sin_addr, &ip->u.ip4, sizeof(ip->u.ip4)); |
0 | 93 } |
94 | |
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95 static inline void |
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96 sin_get_ip(const union sockaddr_union *so, struct ip_addr *ip) |
0 | 97 { |
98 ip->family = so->sin.sin_family; | |
99 | |
100 #ifdef HAVE_IPV6 | |
101 if (ip->family == AF_INET6) | |
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102 memcpy(&ip->u.ip6, &so->sin6.sin6_addr, sizeof(ip->u.ip6)); |
0 | 103 else |
104 #endif | |
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105 if (ip->family == AF_INET) |
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106 memcpy(&ip->u.ip4, &so->sin.sin_addr, sizeof(ip->u.ip4)); |
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107 else |
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108 memset(&ip->u, 0, sizeof(ip->u)); |
0 | 109 } |
110 | |
349 | 111 static inline void sin_set_port(union sockaddr_union *so, unsigned int port) |
0 | 112 { |
113 #ifdef HAVE_IPV6 | |
114 if (so->sin.sin_family == AF_INET6) | |
115 so->sin6.sin6_port = htons((unsigned short) port); | |
116 else | |
117 #endif | |
118 so->sin.sin_port = htons((unsigned short) port); | |
119 } | |
120 | |
349 | 121 static inline unsigned int sin_get_port(union sockaddr_union *so) |
0 | 122 { |
123 #ifdef HAVE_IPV6 | |
124 if (so->sin.sin_family == AF_INET6) | |
125 return ntohs(so->sin6.sin6_port); | |
126 #endif | |
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127 if (so->sin.sin_family == AF_INET) |
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128 return ntohs(so->sin.sin_port); |
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129 |
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130 return 0; |
0 | 131 } |
132 | |
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133 #ifdef __FreeBSD__ |
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134 static int net_connect_ip_freebsd(const struct ip_addr *ip, unsigned int port, |
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135 const struct ip_addr *my_ip); |
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136 |
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137 int net_connect_ip(const struct ip_addr *ip, unsigned int port, |
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138 const struct ip_addr *my_ip) |
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139 { |
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140 int fd, try; |
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141 |
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142 for (try = 0;;) { |
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143 fd = net_connect_ip_freebsd(ip, port, my_ip); |
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144 if (fd != -1 || ++try == 5 || |
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145 (errno != EADDRINUSE && errno != EACCES)) |
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146 break; |
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147 /* |
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148 This may be just a temporary problem: |
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149 |
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150 EADDRINUSE: busy |
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151 EACCES: pf may cause this if another connection used |
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152 the same port recently |
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153 */ |
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154 } |
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155 return fd; |
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156 } |
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157 /* then some kludging: */ |
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158 #define net_connect_ip net_connect_ip_freebsd |
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159 static |
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160 #endif |
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161 |
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162 int net_connect_ip(const struct ip_addr *ip, unsigned int port, |
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163 const struct ip_addr *my_ip) |
0 | 164 { |
165 union sockaddr_union so; | |
166 int fd, ret, opt = 1; | |
167 | |
168 if (my_ip != NULL && ip->family != my_ip->family) { | |
169 i_warning("net_connect_ip(): ip->family != my_ip->family"); | |
170 my_ip = NULL; | |
171 } | |
172 | |
173 /* create the socket */ | |
174 memset(&so, 0, sizeof(so)); | |
175 so.sin.sin_family = ip->family; | |
176 fd = socket(ip->family, SOCK_STREAM, 0); | |
177 | |
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178 if (fd == -1) { |
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179 i_error("socket() failed: %m"); |
0 | 180 return -1; |
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181 } |
0 | 182 |
183 /* set socket options */ | |
184 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)); | |
185 setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &opt, sizeof(opt)); | |
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186 net_set_nonblock(fd, TRUE); |
0 | 187 |
188 /* set our own address */ | |
189 if (my_ip != NULL) { | |
190 sin_set_ip(&so, my_ip); | |
191 if (bind(fd, &so.sa, SIZEOF_SOCKADDR(so)) == -1) { | |
192 /* failed, set it back to INADDR_ANY */ | |
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193 i_error("bind(%s) failed: %m", net_ip2addr(my_ip)); |
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194 close_keep_errno(fd); |
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195 return -1; |
0 | 196 } |
197 } | |
198 | |
199 /* connect */ | |
200 sin_set_ip(&so, ip); | |
201 sin_set_port(&so, port); | |
202 ret = connect(fd, &so.sa, SIZEOF_SOCKADDR(so)); | |
203 | |
204 #ifndef WIN32 | |
205 if (ret < 0 && errno != EINPROGRESS) | |
206 #else | |
207 if (ret < 0 && WSAGetLastError() != WSAEWOULDBLOCK) | |
208 #endif | |
209 { | |
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210 close_keep_errno(fd); |
0 | 211 return -1; |
212 } | |
213 | |
214 return fd; | |
215 } | |
216 | |
217 int net_connect_unix(const char *path) | |
218 { | |
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219 union { |
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220 struct sockaddr sa; |
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221 struct sockaddr_un un; |
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222 } sa; |
0 | 223 int fd, ret; |
224 | |
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225 memset(&sa, 0, sizeof(sa)); |
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226 sa.un.sun_family = AF_UNIX; |
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227 if (i_strocpy(sa.un.sun_path, path, sizeof(sa.un.sun_path)) < 0) { |
0 | 228 /* too long path */ |
229 errno = EINVAL; | |
230 return -1; | |
231 } | |
232 | |
233 /* create the socket */ | |
234 fd = socket(PF_UNIX, SOCK_STREAM, 0); | |
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235 if (fd == -1) { |
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236 i_error("socket(%s) failed: %m", path); |
0 | 237 return -1; |
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238 } |
0 | 239 |
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240 net_set_nonblock(fd, TRUE); |
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241 |
0 | 242 /* connect */ |
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243 ret = connect(fd, &sa.sa, sizeof(sa)); |
0 | 244 if (ret < 0 && errno != EINPROGRESS) { |
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245 close_keep_errno(fd); |
0 | 246 return -1; |
247 } | |
248 | |
249 return fd; | |
250 } | |
251 | |
252 void net_disconnect(int fd) | |
253 { | |
388
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254 if (close(fd) < 0) |
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255 i_error("net_disconnect() failed: %m"); |
0 | 256 } |
257 | |
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258 void net_set_nonblock(int fd, bool nonblock) |
0 | 259 { |
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260 if (fd_set_nonblock(fd, nonblock) < 0) |
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261 i_fatal("fd_set_nonblock(%d) failed: %m", fd); |
0 | 262 } |
263 | |
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264 int net_set_cork(int fd ATTR_UNUSED, bool cork ATTR_UNUSED) |
0 | 265 { |
266 #ifdef TCP_CORK | |
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267 int val = cork; |
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268 |
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269 return setsockopt(fd, IPPROTO_TCP, TCP_CORK, &val, sizeof(val)); |
410
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270 #else |
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271 errno = ENOPROTOOPT; |
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272 return -1; |
0 | 273 #endif |
274 } | |
275 | |
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276 void net_get_ip_any4(struct ip_addr *ip) |
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277 { |
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278 ip->family = AF_INET; |
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279 ip->u.ip4.s_addr = INADDR_ANY; |
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280 } |
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281 |
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282 void net_get_ip_any6(struct ip_addr *ip) |
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283 { |
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284 #ifdef HAVE_IPV6 |
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285 ip->family = AF_INET6; |
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286 ip->u.ip6 = in6addr_any; |
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287 #else |
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288 memset(ip, 0, sizeof(struct ip_addr)); |
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289 #endif |
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290 } |
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291 |
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292 int net_listen(const struct ip_addr *my_ip, unsigned int *port, int backlog) |
0 | 293 { |
294 union sockaddr_union so; | |
295 int ret, fd, opt = 1; | |
296 socklen_t len; | |
297 | |
298 memset(&so, 0, sizeof(so)); | |
299 sin_set_port(&so, *port); | |
300 sin_set_ip(&so, my_ip); | |
301 | |
302 /* create the socket */ | |
303 fd = socket(so.sin.sin_family, SOCK_STREAM, 0); | |
304 #ifdef HAVE_IPV6 | |
305 if (fd == -1 && (errno == EINVAL || errno == EAFNOSUPPORT)) { | |
306 /* IPv6 is not supported by OS */ | |
307 so.sin.sin_family = AF_INET; | |
308 so.sin.sin_addr.s_addr = INADDR_ANY; | |
309 | |
310 fd = socket(AF_INET, SOCK_STREAM, 0); | |
311 } | |
312 #endif | |
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313 if (fd == -1) { |
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314 i_error("socket() failed: %m"); |
0 | 315 return -1; |
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316 } |
0 | 317 |
318 /* set socket options */ | |
319 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)); | |
320 setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &opt, sizeof(opt)); | |
321 | |
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322 /* If using IPv6, bind only to IPv6 if possible. This avoids |
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323 ambiguities with IPv4-mapped IPv6 addresses. */ |
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324 #ifdef IPV6_V6ONLY |
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325 if (so.sin.sin_family == AF_INET6) { |
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326 opt = 1; |
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327 setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &opt, sizeof(opt)); |
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328 } |
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329 #endif |
0 | 330 /* specify the address/port we want to listen in */ |
331 ret = bind(fd, &so.sa, SIZEOF_SOCKADDR(so)); | |
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332 if (ret < 0) { |
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333 if (errno != EADDRINUSE) { |
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334 i_error("bind(%s, %u) failed: %m", |
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335 net_ip2addr(my_ip), *port); |
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336 } |
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337 } else { |
0 | 338 /* get the actual port we started listen */ |
339 len = SIZEOF_SOCKADDR(so); | |
340 ret = getsockname(fd, &so.sa, &len); | |
341 if (ret >= 0) { | |
342 *port = sin_get_port(&so); | |
343 | |
344 /* start listening */ | |
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345 if (listen(fd, backlog) >= 0) |
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346 return fd; |
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347 |
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348 if (errno != EADDRINUSE) |
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349 i_error("listen() failed: %m"); |
0 | 350 } |
351 } | |
352 | |
353 /* error */ | |
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354 close_keep_errno(fd); |
0 | 355 return -1; |
356 } | |
357 | |
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358 int net_listen_unix(const char *path, int backlog) |
0 | 359 { |
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360 union { |
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361 struct sockaddr sa; |
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362 struct sockaddr_un un; |
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363 } sa; |
0 | 364 int fd; |
365 | |
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366 memset(&sa, 0, sizeof(sa)); |
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367 sa.un.sun_family = AF_UNIX; |
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368 if (i_strocpy(sa.un.sun_path, path, sizeof(sa.un.sun_path)) < 0) { |
0 | 369 /* too long path */ |
370 errno = EINVAL; | |
371 return -1; | |
372 } | |
373 | |
374 /* create the socket */ | |
375 fd = socket(PF_UNIX, SOCK_STREAM, 0); | |
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376 if (fd == -1) { |
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377 i_error("socket() failed: %m"); |
0 | 378 return -1; |
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379 } |
0 | 380 |
381 /* bind */ | |
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382 if (bind(fd, &sa.sa, sizeof(sa)) < 0) { |
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383 if (errno != EADDRINUSE) |
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384 i_error("bind(%s) failed: %m", path); |
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385 } else { |
0 | 386 /* start listening */ |
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387 if (listen(fd, backlog) == 0) |
0 | 388 return fd; |
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389 |
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390 if (errno != EADDRINUSE) |
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391 i_error("listen() failed: %m"); |
0 | 392 } |
393 | |
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394 close_keep_errno(fd); |
0 | 395 return -1; |
396 } | |
397 | |
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398 int net_listen_unix_unlink_stale(const char *path, int backlog) |
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399 { |
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400 unsigned int i = 0; |
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401 int fd; |
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402 |
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403 while ((fd = net_listen_unix(path, backlog)) == -1) { |
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404 if (errno != EADDRINUSE || ++i == 2) |
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405 return -1; |
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406 |
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407 /* see if it really exists */ |
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408 fd = net_connect_unix(path); |
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409 if (fd != -1 || errno != ECONNREFUSED) { |
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410 if (fd != -1) (void)close(fd); |
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411 errno = EADDRINUSE; |
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diff
changeset
|
412 return -1; |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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diff
changeset
|
413 } |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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parents:
7919
diff
changeset
|
414 |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
Timo Sirainen <tss@iki.fi>
parents:
7919
diff
changeset
|
415 /* delete and try again */ |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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parents:
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diff
changeset
|
416 if (unlink(path) < 0 && errno != ENOENT) { |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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diff
changeset
|
417 i_error("unlink(%s) failed: %m", path); |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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diff
changeset
|
418 errno = EADDRINUSE; |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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parents:
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diff
changeset
|
419 return -1; |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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parents:
7919
diff
changeset
|
420 } |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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parents:
7919
diff
changeset
|
421 } |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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parents:
7919
diff
changeset
|
422 return fd; |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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parents:
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diff
changeset
|
423 } |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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7919
diff
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|
424 |
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
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807
diff
changeset
|
425 int net_accept(int fd, struct ip_addr *addr, unsigned int *port) |
0 | 426 { |
427 union sockaddr_union so; | |
428 int ret; | |
429 socklen_t addrlen; | |
430 | |
431 i_assert(fd >= 0); | |
432 | |
433 addrlen = sizeof(so); | |
434 ret = accept(fd, &so.sa, &addrlen); | |
435 | |
680
84e398270f7f
net_accept() returns now -2 for fatal failures.
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parents:
628
diff
changeset
|
436 if (ret < 0) { |
5358
a977ad033903
net_listen_unix() API changed a bit. -1 is now returned for errors that can
Timo Sirainen <tss@iki.fi>
parents:
4745
diff
changeset
|
437 if (errno == EAGAIN || errno == ECONNABORTED) |
a977ad033903
net_listen_unix() API changed a bit. -1 is now returned for errors that can
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diff
changeset
|
438 return -1; |
a977ad033903
net_listen_unix() API changed a bit. -1 is now returned for errors that can
Timo Sirainen <tss@iki.fi>
parents:
4745
diff
changeset
|
439 else |
680
84e398270f7f
net_accept() returns now -2 for fatal failures.
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parents:
628
diff
changeset
|
440 return -2; |
84e398270f7f
net_accept() returns now -2 for fatal failures.
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parents:
628
diff
changeset
|
441 } |
0 | 442 |
443 if (addr != NULL) sin_get_ip(&so, addr); | |
444 if (port != NULL) *port = sin_get_port(&so); | |
445 | |
446 return ret; | |
447 } | |
448 | |
183
4a7ab9e94f25
size_t fixes for lib/. Changed OFF_T_FORMAT to PRIuOFF_T which is more
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parents:
159
diff
changeset
|
449 ssize_t net_receive(int fd, void *buf, size_t len) |
0 | 450 { |
183
4a7ab9e94f25
size_t fixes for lib/. Changed OFF_T_FORMAT to PRIuOFF_T which is more
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159
diff
changeset
|
451 ssize_t ret; |
0 | 452 |
453 i_assert(fd >= 0); | |
183
4a7ab9e94f25
size_t fixes for lib/. Changed OFF_T_FORMAT to PRIuOFF_T which is more
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parents:
159
diff
changeset
|
454 i_assert(len <= SSIZE_T_MAX); |
0 | 455 |
3681
771cd6776d4b
Use read() instead of recv() in net_receive(), so it works even with
Timo Sirainen <tss@iki.fi>
parents:
3621
diff
changeset
|
456 ret = read(fd, buf, len); |
781
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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parents:
780
diff
changeset
|
457 if (ret == 0) { |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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780
diff
changeset
|
458 /* disconnected */ |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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parents:
780
diff
changeset
|
459 errno = 0; |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
Timo Sirainen <tss@iki.fi>
parents:
780
diff
changeset
|
460 return -2; |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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parents:
780
diff
changeset
|
461 } |
0 | 462 |
6825
85385079b044
Use likely() and unlikely() macros to make commonly checked error handling
Timo Sirainen <tss@iki.fi>
parents:
6666
diff
changeset
|
463 if (unlikely(ret < 0)) { |
781
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
Timo Sirainen <tss@iki.fi>
parents:
780
diff
changeset
|
464 if (errno == EINTR || errno == EAGAIN) |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
Timo Sirainen <tss@iki.fi>
parents:
780
diff
changeset
|
465 return 0; |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
Timo Sirainen <tss@iki.fi>
parents:
780
diff
changeset
|
466 |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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parents:
780
diff
changeset
|
467 if (errno == ECONNRESET || errno == ETIMEDOUT) { |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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parents:
780
diff
changeset
|
468 /* treat as disconnection */ |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
Timo Sirainen <tss@iki.fi>
parents:
780
diff
changeset
|
469 return -2; |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
Timo Sirainen <tss@iki.fi>
parents:
780
diff
changeset
|
470 } |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
Timo Sirainen <tss@iki.fi>
parents:
780
diff
changeset
|
471 } |
0 | 472 |
473 return ret; | |
474 } | |
475 | |
183
4a7ab9e94f25
size_t fixes for lib/. Changed OFF_T_FORMAT to PRIuOFF_T which is more
Timo Sirainen <tss@iki.fi>
parents:
159
diff
changeset
|
476 ssize_t net_transmit(int fd, const void *data, size_t len) |
0 | 477 { |
183
4a7ab9e94f25
size_t fixes for lib/. Changed OFF_T_FORMAT to PRIuOFF_T which is more
Timo Sirainen <tss@iki.fi>
parents:
159
diff
changeset
|
478 ssize_t ret; |
0 | 479 |
480 i_assert(fd >= 0); | |
183
4a7ab9e94f25
size_t fixes for lib/. Changed OFF_T_FORMAT to PRIuOFF_T which is more
Timo Sirainen <tss@iki.fi>
parents:
159
diff
changeset
|
481 i_assert(len <= SSIZE_T_MAX); |
0 | 482 |
64
83ae914a583a
added t_strdup_noconst() which can be used instead of (char *) t_strdup().
Timo Sirainen <tss@iki.fi>
parents:
34
diff
changeset
|
483 ret = send(fd, data, len, 0); |
6825
85385079b044
Use likely() and unlikely() macros to make commonly checked error handling
Timo Sirainen <tss@iki.fi>
parents:
6666
diff
changeset
|
484 if (unlikely(ret == -1 && (errno == EINTR || errno == EAGAIN))) |
781
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
Timo Sirainen <tss@iki.fi>
parents:
780
diff
changeset
|
485 return 0; |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
Timo Sirainen <tss@iki.fi>
parents:
780
diff
changeset
|
486 |
6825
85385079b044
Use likely() and unlikely() macros to make commonly checked error handling
Timo Sirainen <tss@iki.fi>
parents:
6666
diff
changeset
|
487 if (unlikely(errno == EPIPE)) |
781
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
Timo Sirainen <tss@iki.fi>
parents:
780
diff
changeset
|
488 return -2; |
0 | 489 |
490 return ret; | |
491 } | |
492 | |
4745
7ee0bb1b2d97
Changed ips_count to unsigned int in net_gethostbyname(). Also removed
Timo Sirainen <tss@iki.fi>
parents:
4699
diff
changeset
|
493 int net_gethostbyname(const char *addr, struct ip_addr **ips, |
7ee0bb1b2d97
Changed ips_count to unsigned int in net_gethostbyname(). Also removed
Timo Sirainen <tss@iki.fi>
parents:
4699
diff
changeset
|
494 unsigned int *ips_count) |
0 | 495 { |
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
496 /* @UNSAFE */ |
0 | 497 #ifdef HAVE_IPV6 |
498 union sockaddr_union *so; | |
499 struct addrinfo hints, *ai, *origai; | |
500 int host_error; | |
501 #else | |
502 struct hostent *hp; | |
503 #endif | |
504 int count; | |
505 | |
506 *ips = NULL; | |
507 *ips_count = 0; | |
508 | |
509 #ifdef HAVE_IPV6 | |
510 memset(&hints, 0, sizeof(struct addrinfo)); | |
511 hints.ai_socktype = SOCK_STREAM; | |
512 | |
513 /* save error to host_error for later use */ | |
514 host_error = getaddrinfo(addr, NULL, &hints, &ai); | |
515 if (host_error != 0) | |
516 return host_error; | |
517 | |
518 /* get number of IPs */ | |
519 origai = ai; | |
520 for (count = 0; ai != NULL; ai = ai->ai_next) | |
521 count++; | |
522 | |
523 *ips_count = count; | |
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents:
807
diff
changeset
|
524 *ips = t_malloc(sizeof(struct ip_addr) * count); |
0 | 525 |
526 count = 0; | |
527 for (ai = origai; ai != NULL; ai = ai->ai_next, count++) { | |
528 so = (union sockaddr_union *) ai->ai_addr; | |
529 | |
2113
c5817f302aa6
net_gethostbyname() was broken with IPv6 enabled (wasn't really used with
Timo Sirainen <tss@iki.fi>
parents:
2098
diff
changeset
|
530 sin_get_ip(so, &(*ips)[count]); |
0 | 531 } |
532 freeaddrinfo(origai); | |
533 #else | |
534 hp = gethostbyname(addr); | |
535 if (hp == NULL) | |
536 return h_errno; | |
537 | |
538 /* get number of IPs */ | |
539 count = 0; | |
540 while (hp->h_addr_list[count] != NULL) | |
541 count++; | |
542 | |
543 *ips_count = count; | |
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents:
807
diff
changeset
|
544 *ips = t_malloc(sizeof(struct ip_addr) * count); |
0 | 545 |
546 while (count > 0) { | |
547 count--; | |
548 | |
549 (*ips)[count].family = AF_INET; | |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
Timo Sirainen <tss@iki.fi>
parents:
5865
diff
changeset
|
550 memcpy(&(*ips)[count].u.ip4, hp->h_addr_list[count], |
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
Timo Sirainen <tss@iki.fi>
parents:
5865
diff
changeset
|
551 sizeof((*ips)[count].u.ip4)); |
0 | 552 } |
553 #endif | |
554 | |
555 return 0; | |
556 } | |
557 | |
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents:
807
diff
changeset
|
558 int net_getsockname(int fd, struct ip_addr *addr, unsigned int *port) |
0 | 559 { |
560 union sockaddr_union so; | |
561 socklen_t addrlen; | |
562 | |
563 i_assert(fd >= 0); | |
564 | |
565 addrlen = sizeof(so); | |
4018
989dd95aa8b9
Enable -Wstrict-aliasing=2 warning and fixed a couple of warnings it gave.
Timo Sirainen <tss@iki.fi>
parents:
4011
diff
changeset
|
566 if (getsockname(fd, &so.sa, &addrlen) == -1) |
0 | 567 return -1; |
568 | |
569 if (addr != NULL) sin_get_ip(&so, addr); | |
570 if (port != NULL) *port = sin_get_port(&so); | |
571 | |
572 return 0; | |
573 } | |
574 | |
2098 | 575 int net_getpeername(int fd, struct ip_addr *addr, unsigned int *port) |
576 { | |
577 union sockaddr_union so; | |
578 socklen_t addrlen; | |
579 | |
580 i_assert(fd >= 0); | |
581 | |
582 addrlen = sizeof(so); | |
4018
989dd95aa8b9
Enable -Wstrict-aliasing=2 warning and fixed a couple of warnings it gave.
Timo Sirainen <tss@iki.fi>
parents:
4011
diff
changeset
|
583 if (getpeername(fd, &so.sa, &addrlen) == -1) |
2098 | 584 return -1; |
585 | |
586 if (addr != NULL) sin_get_ip(&so, addr); | |
587 if (port != NULL) *port = sin_get_port(&so); | |
588 | |
589 return 0; | |
590 } | |
591 | |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
592 const char *net_ip2addr(const struct ip_addr *ip) |
0 | 593 { |
594 #ifdef HAVE_IPV6 | |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
595 char addr[MAX_IP_LEN+1]; |
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
596 |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
597 addr[MAX_IP_LEN] = '\0'; |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
Timo Sirainen <tss@iki.fi>
parents:
5865
diff
changeset
|
598 if (inet_ntop(ip->family, &ip->u.ip6, addr, MAX_IP_LEN) == NULL) |
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
599 return NULL; |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
600 |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
601 return t_strdup(addr); |
0 | 602 #else |
603 unsigned long ip4; | |
604 | |
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
605 if (ip->family != AF_INET) |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
606 return NULL; |
0 | 607 |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
Timo Sirainen <tss@iki.fi>
parents:
5865
diff
changeset
|
608 ip4 = ntohl(ip->u.ip4.s_addr); |
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
609 return t_strdup_printf("%lu.%lu.%lu.%lu", |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
610 (ip4 & 0xff000000UL) >> 24, |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
611 (ip4 & 0x00ff0000) >> 16, |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
612 (ip4 & 0x0000ff00) >> 8, |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
613 (ip4 & 0x000000ff)); |
0 | 614 #endif |
615 } | |
616 | |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
617 int net_addr2ip(const char *addr, struct ip_addr *ip) |
0 | 618 { |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
619 if (strchr(addr, ':') != NULL) { |
0 | 620 /* IPv6 */ |
621 ip->family = AF_INET6; | |
622 #ifdef HAVE_IPV6 | |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
Timo Sirainen <tss@iki.fi>
parents:
5865
diff
changeset
|
623 if (inet_pton(AF_INET6, addr, &ip->u.ip6) == 0) |
0 | 624 return -1; |
625 #else | |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
Timo Sirainen <tss@iki.fi>
parents:
5865
diff
changeset
|
626 ip->u.ip4.s_addr = 0; |
0 | 627 #endif |
628 } else { | |
629 /* IPv4 */ | |
630 ip->family = AF_INET; | |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
Timo Sirainen <tss@iki.fi>
parents:
5865
diff
changeset
|
631 if (inet_aton(addr, &ip->u.ip4) == 0) |
0 | 632 return -1; |
633 } | |
634 | |
635 return 0; | |
636 } | |
637 | |
4684
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
638 int net_ipv6_mapped_ipv4_convert(const struct ip_addr *src, |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
639 struct ip_addr *dest) |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
640 { |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
641 #ifdef HAVE_IPV6 |
4699
9e4cc68b71b2
Fix net_ipv6_mapped_ipv4_convert() to be actually portable.
Timo Sirainen <tss@iki.fi>
parents:
4684
diff
changeset
|
642 static uint8_t v4_prefix[] = |
9e4cc68b71b2
Fix net_ipv6_mapped_ipv4_convert() to be actually portable.
Timo Sirainen <tss@iki.fi>
parents:
4684
diff
changeset
|
643 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff }; |
9e4cc68b71b2
Fix net_ipv6_mapped_ipv4_convert() to be actually portable.
Timo Sirainen <tss@iki.fi>
parents:
4684
diff
changeset
|
644 |
4684
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
645 if (!IPADDR_IS_V6(src)) |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
646 return -1; |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
Timo Sirainen <tss@iki.fi>
parents:
5865
diff
changeset
|
647 if (memcmp(src->u.ip6.s6_addr, v4_prefix, sizeof(v4_prefix)) != 0) |
4684
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
648 return -1; |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
649 |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
650 dest->family = AF_INET; |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
Timo Sirainen <tss@iki.fi>
parents:
5865
diff
changeset
|
651 memcpy(&dest->u.ip6, &src->u.ip6.s6_addr[3*4], 4); |
4684
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
652 return 0; |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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parents:
4018
diff
changeset
|
653 #else |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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parents:
4018
diff
changeset
|
654 return -1; |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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parents:
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diff
changeset
|
655 #endif |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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parents:
4018
diff
changeset
|
656 } |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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parents:
4018
diff
changeset
|
657 |
0 | 658 int net_geterror(int fd) |
659 { | |
660 int data; | |
661 socklen_t len = sizeof(data); | |
662 | |
663 if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &data, &len) == -1) | |
664 return -1; | |
665 | |
666 return data; | |
667 } | |
668 | |
669 const char *net_gethosterror(int error) | |
670 { | |
671 #ifdef HAVE_IPV6 | |
672 i_assert(error != 0); | |
673 | |
674 return gai_strerror(error); | |
675 #else | |
676 switch (error) { | |
677 case HOST_NOT_FOUND: | |
678 return "Host not found"; | |
679 case NO_ADDRESS: | |
680 return "No IP address found for name"; | |
681 case NO_RECOVERY: | |
6666 | 682 return "A non-recoverable name server error occurred"; |
0 | 683 case TRY_AGAIN: |
684 return "A temporary error on an authoritative name server"; | |
685 } | |
686 | |
687 /* unknown error */ | |
688 return NULL; | |
689 #endif | |
690 } | |
691 | |
692 int net_hosterror_notfound(int error) | |
693 { | |
694 #ifdef HAVE_IPV6 | |
1915
79790750c349
importing new index code. mbox still broken.
Timo Sirainen <tss@iki.fi>
parents:
1871
diff
changeset
|
695 #ifdef EAI_NODATA /* NODATA is depricated */ |
0 | 696 return error != 1 && (error == EAI_NONAME || error == EAI_NODATA); |
697 #else | |
1915
79790750c349
importing new index code. mbox still broken.
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parents:
1871
diff
changeset
|
698 return error != 1 && (error == EAI_NONAME); |
79790750c349
importing new index code. mbox still broken.
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parents:
1871
diff
changeset
|
699 #endif |
79790750c349
importing new index code. mbox still broken.
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1871
diff
changeset
|
700 #else |
0 | 701 return error == HOST_NOT_FOUND || error == NO_ADDRESS; |
702 #endif | |
703 } | |
704 | |
2113
c5817f302aa6
net_gethostbyname() was broken with IPv6 enabled (wasn't really used with
Timo Sirainen <tss@iki.fi>
parents:
2098
diff
changeset
|
705 const char *net_getservbyport(unsigned short port) |
0 | 706 { |
707 struct servent *entry; | |
708 | |
349 | 709 entry = getservbyport(htons(port), "tcp"); |
0 | 710 return entry == NULL ? NULL : entry->s_name; |
711 } | |
712 | |
3863
55df57c028d4
Added "bool" type and changed all ints that were used as booleans to bool.
Timo Sirainen <tss@iki.fi>
parents:
3681
diff
changeset
|
713 bool is_ipv4_address(const char *addr) |
0 | 714 { |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
715 while (*addr != '\0') { |
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
716 if (*addr != '.' && !i_isdigit(*addr)) |
3863
55df57c028d4
Added "bool" type and changed all ints that were used as booleans to bool.
Timo Sirainen <tss@iki.fi>
parents:
3681
diff
changeset
|
717 return FALSE; |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
718 addr++; |
0 | 719 } |
720 | |
3863
55df57c028d4
Added "bool" type and changed all ints that were used as booleans to bool.
Timo Sirainen <tss@iki.fi>
parents:
3681
diff
changeset
|
721 return TRUE; |
0 | 722 } |
723 | |
3863
55df57c028d4
Added "bool" type and changed all ints that were used as booleans to bool.
Timo Sirainen <tss@iki.fi>
parents:
3681
diff
changeset
|
724 bool is_ipv6_address(const char *addr) |
0 | 725 { |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
726 while (*addr != '\0') { |
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
727 if (*addr != ':' && !i_isxdigit(*addr)) |
3863
55df57c028d4
Added "bool" type and changed all ints that were used as booleans to bool.
Timo Sirainen <tss@iki.fi>
parents:
3681
diff
changeset
|
728 return FALSE; |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
729 addr++; |
0 | 730 } |
731 | |
3863
55df57c028d4
Added "bool" type and changed all ints that were used as booleans to bool.
Timo Sirainen <tss@iki.fi>
parents:
3681
diff
changeset
|
732 return TRUE; |
0 | 733 } |
7517
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
734 |
7919
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
735 int net_parse_range(const char *network, struct ip_addr *ip_r, |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
736 unsigned int *bits_r) |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
737 { |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
738 const char *p; |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
739 int bits, max_bits; |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
740 |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
741 p = strchr(network, '/'); |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
742 if (p != NULL) |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
743 network = t_strdup_until(network, p++); |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
744 |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
745 if (net_addr2ip(network, ip_r) < 0) |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
746 return -1; |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
747 |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
748 max_bits = IPADDR_IS_V4(ip_r) ? 32 : 128; |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
749 if (p == NULL) { |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
750 /* full IP address must match */ |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
751 bits = max_bits; |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
752 } else { |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
753 /* get the network mask */ |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
754 bits = atoi(p); |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
755 if (bits < 0 || bits > max_bits) |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
756 return -1; |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
757 } |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
758 *bits_r = bits; |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
759 return 0; |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
760 } |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
761 |
7517
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
762 bool net_is_in_network(const struct ip_addr *ip, |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
763 const struct ip_addr *net_ip, unsigned int bits) |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
764 { |
7919
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
765 struct ip_addr tmp_ip; |
7517
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
766 const uint32_t *ip1, *ip2; |
7520
85203e817f90
net_is_in_network(): Fixed to work with big endian machines.
Timo Sirainen <tss@iki.fi>
parents:
7517
diff
changeset
|
767 uint32_t mask, i1, i2; |
7517
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
768 unsigned int pos, i; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
769 |
7919
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
770 if (net_ipv6_mapped_ipv4_convert(ip, &tmp_ip) == 0) { |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
771 /* IPv4 address mapped disguised as IPv6 address */ |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
772 ip = &tmp_ip; |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
773 } |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
774 |
7517
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
775 if (IPADDR_IS_V4(ip) != IPADDR_IS_V4(net_ip)) { |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
776 /* one is IPv6 and one is IPv4 */ |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
777 return FALSE; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
778 } |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
779 i_assert(IPADDR_IS_V6(ip) == IPADDR_IS_V6(net_ip)); |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
780 |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
781 if (IPADDR_IS_V4(ip)) { |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
782 ip1 = &ip->u.ip4.s_addr; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
783 ip2 = &net_ip->u.ip4.s_addr; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
784 } else { |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
785 #ifdef HAVE_IPV6 |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
786 ip1 = (const void *)&ip->u.ip6; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
787 ip2 = (const void *)&net_ip->u.ip6; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
788 #else |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
789 /* shouldn't get here */ |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
790 return FALSE; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
791 #endif |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
792 } |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
793 |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
794 /* check first the full 32bit ints */ |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
795 for (pos = 0, i = 0; pos + 32 <= bits; pos += 32, i++) { |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
796 if (ip1[i] != ip2[i]) |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
797 return FALSE; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
798 } |
7520
85203e817f90
net_is_in_network(): Fixed to work with big endian machines.
Timo Sirainen <tss@iki.fi>
parents:
7517
diff
changeset
|
799 i1 = htonl(ip1[i]); |
85203e817f90
net_is_in_network(): Fixed to work with big endian machines.
Timo Sirainen <tss@iki.fi>
parents:
7517
diff
changeset
|
800 i2 = htonl(ip2[i]); |
7517
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
801 |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
802 /* check the last full bytes */ |
7520
85203e817f90
net_is_in_network(): Fixed to work with big endian machines.
Timo Sirainen <tss@iki.fi>
parents:
7517
diff
changeset
|
803 for (mask = 0xff000000; pos + 8 <= bits; pos += 8, mask >>= 8) { |
85203e817f90
net_is_in_network(): Fixed to work with big endian machines.
Timo Sirainen <tss@iki.fi>
parents:
7517
diff
changeset
|
804 if ((i1 & mask) != (i2 & mask)) |
7517
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
805 return FALSE; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
806 } |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
807 |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
808 /* check the last bits, they're reversed in bytes */ |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
809 bits -= pos; |
7520
85203e817f90
net_is_in_network(): Fixed to work with big endian machines.
Timo Sirainen <tss@iki.fi>
parents:
7517
diff
changeset
|
810 for (mask = 0x80000000 >> (pos % 32); bits > 0; bits--, mask >>= 1) { |
85203e817f90
net_is_in_network(): Fixed to work with big endian machines.
Timo Sirainen <tss@iki.fi>
parents:
7517
diff
changeset
|
811 if ((i1 & mask) != (i2 & mask)) |
7517
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
812 return FALSE; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
813 } |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
814 return TRUE; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
815 } |