Mercurial > dovecot > core-2.2
annotate src/lib/network.c @ 11448:bdb46ba87203 HEAD
Added support for [] around ipv6 addresses everywhere.
author | Timo Sirainen <tss@iki.fi> |
---|---|
date | Tue, 01 Jun 2010 18:35:48 +0100 |
parents | 40964653930c |
children | c24ee1ebb159 |
rev | line source |
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Updated copyright notices to include year 2010.
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1 /* Copyright (c) 1999-2010 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" |
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6 #include "time-util.h" |
0 | 7 #include "network.h" |
8 | |
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9 #include <stdlib.h> |
0 | 10 #include <unistd.h> |
11 #include <fcntl.h> | |
12 #include <ctype.h> | |
13 #include <sys/un.h> | |
14 #include <netinet/tcp.h> | |
15 | |
16 union sockaddr_union { | |
17 struct sockaddr sa; | |
18 struct sockaddr_in sin; | |
19 #ifdef HAVE_IPV6 | |
20 struct sockaddr_in6 sin6; | |
21 #endif | |
22 }; | |
23 | |
24 #ifdef HAVE_IPV6 | |
25 # define SIZEOF_SOCKADDR(so) ((so).sa.sa_family == AF_INET6 ? \ | |
26 sizeof(so.sin6) : sizeof(so.sin)) | |
27 #else | |
28 # define SIZEOF_SOCKADDR(so) (sizeof(so.sin)) | |
29 #endif | |
30 | |
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31 bool net_ip_compare(const struct ip_addr *ip1, const struct ip_addr *ip2) |
0 | 32 { |
10789 | 33 return net_ip_cmp(ip1, ip2) == 0; |
34 } | |
35 | |
36 int net_ip_cmp(const struct ip_addr *ip1, const struct ip_addr *ip2) | |
37 { | |
0 | 38 if (ip1->family != ip2->family) |
10789 | 39 return ip1->family - ip2->family; |
0 | 40 |
41 #ifdef HAVE_IPV6 | |
10789 | 42 if (ip1->family == AF_INET6) |
43 return memcmp(&ip1->u.ip6, &ip2->u.ip6, sizeof(ip1->u.ip6)); | |
0 | 44 #endif |
45 | |
10789 | 46 return memcmp(&ip1->u.ip4, &ip2->u.ip4, sizeof(ip1->u.ip4)); |
0 | 47 } |
48 | |
5865 | 49 unsigned int net_ip_hash(const struct ip_addr *ip) |
50 { | |
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51 const unsigned char *p; |
5865 | 52 unsigned int len, g, h = 0; |
53 | |
54 #ifdef HAVE_IPV6 | |
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55 if (ip->family == AF_INET6) { |
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56 p = ip->u.ip6.s6_addr; |
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57 len = sizeof(ip->u.ip6); |
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58 } else |
5865 | 59 #endif |
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60 { |
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61 return ip->u.ip4.s_addr; |
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62 } |
5865 | 63 |
64 for (; len > 0; len--, p++) { | |
65 h = (h << 4) + *p; | |
66 if ((g = h & 0xf0000000UL)) { | |
67 h = h ^ (g >> 24); | |
68 h = h ^ g; | |
69 } | |
70 } | |
71 | |
72 return h; | |
73 } | |
0 | 74 |
75 /* copy IP to sockaddr */ | |
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76 static inline void |
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77 sin_set_ip(union sockaddr_union *so, const struct ip_addr *ip) |
0 | 78 { |
79 if (ip == NULL) { | |
80 #ifdef HAVE_IPV6 | |
81 so->sin6.sin6_family = AF_INET6; | |
82 so->sin6.sin6_addr = in6addr_any; | |
83 #else | |
84 so->sin.sin_family = AF_INET; | |
85 so->sin.sin_addr.s_addr = INADDR_ANY; | |
86 #endif | |
87 return; | |
88 } | |
89 | |
90 so->sin.sin_family = ip->family; | |
91 #ifdef HAVE_IPV6 | |
92 if (ip->family == AF_INET6) | |
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93 memcpy(&so->sin6.sin6_addr, &ip->u.ip6, sizeof(ip->u.ip6)); |
0 | 94 else |
95 #endif | |
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96 memcpy(&so->sin.sin_addr, &ip->u.ip4, sizeof(ip->u.ip4)); |
0 | 97 } |
98 | |
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99 static inline void |
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100 sin_get_ip(const union sockaddr_union *so, struct ip_addr *ip) |
0 | 101 { |
102 ip->family = so->sin.sin_family; | |
103 | |
104 #ifdef HAVE_IPV6 | |
105 if (ip->family == AF_INET6) | |
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106 memcpy(&ip->u.ip6, &so->sin6.sin6_addr, sizeof(ip->u.ip6)); |
0 | 107 else |
108 #endif | |
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109 if (ip->family == AF_INET) |
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110 memcpy(&ip->u.ip4, &so->sin.sin_addr, sizeof(ip->u.ip4)); |
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111 else |
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112 memset(&ip->u, 0, sizeof(ip->u)); |
0 | 113 } |
114 | |
349 | 115 static inline void sin_set_port(union sockaddr_union *so, unsigned int port) |
0 | 116 { |
117 #ifdef HAVE_IPV6 | |
118 if (so->sin.sin_family == AF_INET6) | |
119 so->sin6.sin6_port = htons((unsigned short) port); | |
120 else | |
121 #endif | |
122 so->sin.sin_port = htons((unsigned short) port); | |
123 } | |
124 | |
349 | 125 static inline unsigned int sin_get_port(union sockaddr_union *so) |
0 | 126 { |
127 #ifdef HAVE_IPV6 | |
128 if (so->sin.sin_family == AF_INET6) | |
129 return ntohs(so->sin6.sin6_port); | |
130 #endif | |
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131 if (so->sin.sin_family == AF_INET) |
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132 return ntohs(so->sin.sin_port); |
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133 |
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134 return 0; |
0 | 135 } |
136 | |
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137 #ifdef __FreeBSD__ |
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138 static int net_connect_ip_freebsd(const struct ip_addr *ip, unsigned int port, |
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139 const struct ip_addr *my_ip); |
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140 |
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141 int net_connect_ip(const struct ip_addr *ip, unsigned int port, |
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142 const struct ip_addr *my_ip) |
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143 { |
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144 int fd, try; |
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145 |
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146 for (try = 0;;) { |
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147 fd = net_connect_ip_freebsd(ip, port, my_ip); |
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148 if (fd != -1 || ++try == 5 || |
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149 (errno != EADDRINUSE && errno != EACCES)) |
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150 break; |
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151 /* |
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152 This may be just a temporary problem: |
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153 |
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154 EADDRINUSE: busy |
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155 EACCES: pf may cause this if another connection used |
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156 the same port recently |
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157 */ |
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158 } |
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159 return fd; |
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160 } |
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161 /* then some kludging: */ |
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162 #define net_connect_ip net_connect_ip_freebsd |
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163 static |
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164 #endif |
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165 |
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166 int net_connect_ip(const struct ip_addr *ip, unsigned int port, |
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167 const struct ip_addr *my_ip) |
0 | 168 { |
169 union sockaddr_union so; | |
170 int fd, ret, opt = 1; | |
171 | |
172 if (my_ip != NULL && ip->family != my_ip->family) { | |
173 i_warning("net_connect_ip(): ip->family != my_ip->family"); | |
174 my_ip = NULL; | |
175 } | |
176 | |
177 /* create the socket */ | |
178 memset(&so, 0, sizeof(so)); | |
179 so.sin.sin_family = ip->family; | |
180 fd = socket(ip->family, SOCK_STREAM, 0); | |
181 | |
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182 if (fd == -1) { |
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183 i_error("socket() failed: %m"); |
0 | 184 return -1; |
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185 } |
0 | 186 |
187 /* set socket options */ | |
188 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)); | |
189 setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &opt, sizeof(opt)); | |
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190 net_set_nonblock(fd, TRUE); |
0 | 191 |
192 /* set our own address */ | |
193 if (my_ip != NULL) { | |
194 sin_set_ip(&so, my_ip); | |
195 if (bind(fd, &so.sa, SIZEOF_SOCKADDR(so)) == -1) { | |
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196 i_error("bind(%s) failed: %m", net_ip2addr(my_ip)); |
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197 close_keep_errno(fd); |
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198 return -1; |
0 | 199 } |
200 } | |
201 | |
202 /* connect */ | |
203 sin_set_ip(&so, ip); | |
204 sin_set_port(&so, port); | |
205 ret = connect(fd, &so.sa, SIZEOF_SOCKADDR(so)); | |
206 | |
207 #ifndef WIN32 | |
208 if (ret < 0 && errno != EINPROGRESS) | |
209 #else | |
210 if (ret < 0 && WSAGetLastError() != WSAEWOULDBLOCK) | |
211 #endif | |
212 { | |
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213 close_keep_errno(fd); |
0 | 214 return -1; |
215 } | |
216 | |
217 return fd; | |
218 } | |
219 | |
11340 | 220 int net_try_bind(const struct ip_addr *ip) |
221 { | |
222 union sockaddr_union so; | |
223 int fd; | |
224 | |
225 /* create the socket */ | |
226 memset(&so, 0, sizeof(so)); | |
227 so.sin.sin_family = ip->family; | |
228 fd = socket(ip->family, SOCK_STREAM, 0); | |
229 if (fd == -1) { | |
230 i_error("socket() failed: %m"); | |
231 return -1; | |
232 } | |
233 | |
234 sin_set_ip(&so, ip); | |
235 if (bind(fd, &so.sa, SIZEOF_SOCKADDR(so)) == -1) { | |
236 close_keep_errno(fd); | |
237 return -1; | |
238 } | |
239 (void)close(fd); | |
240 return 0; | |
241 } | |
242 | |
0 | 243 int net_connect_unix(const char *path) |
244 { | |
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245 union { |
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246 struct sockaddr sa; |
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247 struct sockaddr_un un; |
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248 } sa; |
0 | 249 int fd, ret; |
250 | |
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251 memset(&sa, 0, sizeof(sa)); |
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252 sa.un.sun_family = AF_UNIX; |
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253 if (i_strocpy(sa.un.sun_path, path, sizeof(sa.un.sun_path)) < 0) { |
0 | 254 /* too long path */ |
255 errno = EINVAL; | |
256 return -1; | |
257 } | |
258 | |
259 /* create the socket */ | |
260 fd = socket(PF_UNIX, SOCK_STREAM, 0); | |
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261 if (fd == -1) { |
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262 i_error("socket(%s) failed: %m", path); |
0 | 263 return -1; |
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264 } |
0 | 265 |
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266 net_set_nonblock(fd, TRUE); |
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267 |
0 | 268 /* connect */ |
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269 ret = connect(fd, &sa.sa, sizeof(sa)); |
0 | 270 if (ret < 0 && errno != EINPROGRESS) { |
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271 close_keep_errno(fd); |
0 | 272 return -1; |
273 } | |
274 | |
275 return fd; | |
276 } | |
277 | |
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278 int net_connect_unix_with_retries(const char *path, unsigned int msecs) |
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279 { |
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280 struct timeval start, now; |
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281 int fd; |
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282 |
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283 if (gettimeofday(&start, NULL) < 0) |
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284 i_panic("gettimeofday() failed: %m"); |
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285 |
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286 do { |
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287 fd = net_connect_unix(path); |
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288 if (fd != -1 || (errno != EAGAIN && errno != ECONNREFUSED)) |
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289 break; |
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290 |
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291 /* busy. wait for a while. */ |
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292 usleep(((rand() % 10) + 1) * 10000); |
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293 if (gettimeofday(&now, NULL) < 0) |
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294 i_panic("gettimeofday() failed: %m"); |
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295 } while (timeval_diff_msecs(&now, &start) < (int)msecs); |
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296 return fd; |
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297 } |
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298 |
0 | 299 void net_disconnect(int fd) |
300 { | |
388
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301 if (close(fd) < 0) |
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302 i_error("net_disconnect() failed: %m"); |
0 | 303 } |
304 | |
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305 void net_set_nonblock(int fd, bool nonblock) |
0 | 306 { |
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307 if (fd_set_nonblock(fd, nonblock) < 0) |
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308 i_fatal("fd_set_nonblock(%d) failed: %m", fd); |
0 | 309 } |
310 | |
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311 int net_set_cork(int fd ATTR_UNUSED, bool cork ATTR_UNUSED) |
0 | 312 { |
313 #ifdef TCP_CORK | |
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314 int val = cork; |
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315 |
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316 return setsockopt(fd, IPPROTO_TCP, TCP_CORK, &val, sizeof(val)); |
410
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317 #else |
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318 errno = ENOPROTOOPT; |
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319 return -1; |
0 | 320 #endif |
321 } | |
322 | |
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323 void net_get_ip_any4(struct ip_addr *ip) |
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324 { |
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325 ip->family = AF_INET; |
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326 ip->u.ip4.s_addr = INADDR_ANY; |
780
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327 } |
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328 |
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329 void net_get_ip_any6(struct ip_addr *ip) |
780
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330 { |
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331 #ifdef HAVE_IPV6 |
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332 ip->family = AF_INET6; |
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333 ip->u.ip6 = in6addr_any; |
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334 #else |
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335 memset(ip, 0, sizeof(struct ip_addr)); |
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336 #endif |
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337 } |
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338 |
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339 int net_listen(const struct ip_addr *my_ip, unsigned int *port, int backlog) |
0 | 340 { |
341 union sockaddr_union so; | |
342 int ret, fd, opt = 1; | |
343 socklen_t len; | |
344 | |
345 memset(&so, 0, sizeof(so)); | |
346 sin_set_port(&so, *port); | |
347 sin_set_ip(&so, my_ip); | |
348 | |
349 /* create the socket */ | |
350 fd = socket(so.sin.sin_family, SOCK_STREAM, 0); | |
351 #ifdef HAVE_IPV6 | |
352 if (fd == -1 && (errno == EINVAL || errno == EAFNOSUPPORT)) { | |
353 /* IPv6 is not supported by OS */ | |
354 so.sin.sin_family = AF_INET; | |
355 so.sin.sin_addr.s_addr = INADDR_ANY; | |
356 | |
357 fd = socket(AF_INET, SOCK_STREAM, 0); | |
358 } | |
359 #endif | |
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360 if (fd == -1) { |
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361 i_error("socket() failed: %m"); |
0 | 362 return -1; |
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363 } |
0 | 364 |
365 /* set socket options */ | |
366 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)); | |
367 setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &opt, sizeof(opt)); | |
368 | |
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369 /* If using IPv6, bind only to IPv6 if possible. This avoids |
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370 ambiguities with IPv4-mapped IPv6 addresses. */ |
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371 #ifdef IPV6_V6ONLY |
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372 if (so.sin.sin_family == AF_INET6) { |
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373 opt = 1; |
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374 setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &opt, sizeof(opt)); |
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375 } |
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376 #endif |
0 | 377 /* specify the address/port we want to listen in */ |
378 ret = bind(fd, &so.sa, SIZEOF_SOCKADDR(so)); | |
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379 if (ret < 0) { |
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380 if (errno != EADDRINUSE) { |
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381 i_error("bind(%s, %u) failed: %m", |
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382 net_ip2addr(my_ip), *port); |
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383 } |
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384 } else { |
0 | 385 /* get the actual port we started listen */ |
386 len = SIZEOF_SOCKADDR(so); | |
387 ret = getsockname(fd, &so.sa, &len); | |
388 if (ret >= 0) { | |
389 *port = sin_get_port(&so); | |
390 | |
391 /* start listening */ | |
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392 if (listen(fd, backlog) >= 0) |
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393 return fd; |
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394 |
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395 if (errno != EADDRINUSE) |
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396 i_error("listen() failed: %m"); |
0 | 397 } |
398 } | |
399 | |
400 /* error */ | |
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401 close_keep_errno(fd); |
0 | 402 return -1; |
403 } | |
404 | |
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405 int net_listen_unix(const char *path, int backlog) |
0 | 406 { |
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407 union { |
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408 struct sockaddr sa; |
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409 struct sockaddr_un un; |
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410 } sa; |
0 | 411 int fd; |
412 | |
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413 memset(&sa, 0, sizeof(sa)); |
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414 sa.un.sun_family = AF_UNIX; |
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415 if (i_strocpy(sa.un.sun_path, path, sizeof(sa.un.sun_path)) < 0) { |
0 | 416 /* too long path */ |
417 errno = EINVAL; | |
418 return -1; | |
419 } | |
420 | |
421 /* create the socket */ | |
422 fd = socket(PF_UNIX, SOCK_STREAM, 0); | |
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423 if (fd == -1) { |
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424 i_error("socket() failed: %m"); |
0 | 425 return -1; |
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426 } |
0 | 427 |
428 /* bind */ | |
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429 if (bind(fd, &sa.sa, sizeof(sa)) < 0) { |
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430 if (errno != EADDRINUSE) |
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431 i_error("bind(%s) failed: %m", path); |
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432 } else { |
0 | 433 /* start listening */ |
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|
434 if (listen(fd, backlog) == 0) |
0 | 435 return fd; |
3545
0b6539bc22b9
Don't log extra bind() errors for net_listen_unix() either
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|
436 |
0b6539bc22b9
Don't log extra bind() errors for net_listen_unix() either
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diff
changeset
|
437 if (errno != EADDRINUSE) |
0b6539bc22b9
Don't log extra bind() errors for net_listen_unix() either
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diff
changeset
|
438 i_error("listen() failed: %m"); |
0 | 439 } |
440 | |
4011
323c09be5f00
Moved dupliated close_save_errno() code to public close_keep_errno() function.
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diff
changeset
|
441 close_keep_errno(fd); |
0 | 442 return -1; |
443 } | |
444 | |
8219
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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diff
changeset
|
445 int net_listen_unix_unlink_stale(const char *path, int backlog) |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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changeset
|
446 { |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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diff
changeset
|
447 unsigned int i = 0; |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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changeset
|
448 int fd; |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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changeset
|
449 |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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|
450 while ((fd = net_listen_unix(path, backlog)) == -1) { |
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
|
451 if (errno != EADDRINUSE || ++i == 2) |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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parents:
7919
diff
changeset
|
452 return -1; |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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diff
changeset
|
453 |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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changeset
|
454 /* see if it really exists */ |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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diff
changeset
|
455 fd = net_connect_unix(path); |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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|
456 if (fd != -1 || errno != ECONNREFUSED) { |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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diff
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|
457 if (fd != -1) (void)close(fd); |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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changeset
|
458 errno = EADDRINUSE; |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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changeset
|
459 return -1; |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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changeset
|
460 } |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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diff
changeset
|
461 |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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diff
changeset
|
462 /* delete and try again */ |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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diff
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|
463 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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|
464 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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|
465 errno = EADDRINUSE; |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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diff
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|
466 return -1; |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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diff
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|
467 } |
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Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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diff
changeset
|
468 } |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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469 return fd; |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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diff
changeset
|
470 } |
ec83f6dcb585
Added net_listen_unix_unlink_stale() and use it where needed to avoid code duplication.
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|
471 |
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
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diff
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|
472 int net_accept(int fd, struct ip_addr *addr, unsigned int *port) |
0 | 473 { |
474 union sockaddr_union so; | |
475 int ret; | |
476 socklen_t addrlen; | |
477 | |
478 i_assert(fd >= 0); | |
479 | |
480 addrlen = sizeof(so); | |
481 ret = accept(fd, &so.sa, &addrlen); | |
482 | |
680
84e398270f7f
net_accept() returns now -2 for fatal failures.
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diff
changeset
|
483 if (ret < 0) { |
5358
a977ad033903
net_listen_unix() API changed a bit. -1 is now returned for errors that can
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4745
diff
changeset
|
484 if (errno == EAGAIN || errno == ECONNABORTED) |
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
|
485 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
|
486 else |
680
84e398270f7f
net_accept() returns now -2 for fatal failures.
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628
diff
changeset
|
487 return -2; |
84e398270f7f
net_accept() returns now -2 for fatal failures.
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628
diff
changeset
|
488 } |
0 | 489 |
490 if (addr != NULL) sin_get_ip(&so, addr); | |
491 if (port != NULL) *port = sin_get_port(&so); | |
492 | |
493 return ret; | |
494 } | |
495 | |
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
|
496 ssize_t net_receive(int fd, void *buf, size_t len) |
0 | 497 { |
183
4a7ab9e94f25
size_t fixes for lib/. Changed OFF_T_FORMAT to PRIuOFF_T which is more
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159
diff
changeset
|
498 ssize_t ret; |
0 | 499 |
500 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
|
501 i_assert(len <= SSIZE_T_MAX); |
0 | 502 |
3681
771cd6776d4b
Use read() instead of recv() in net_receive(), so it works even with
Timo Sirainen <tss@iki.fi>
parents:
3621
diff
changeset
|
503 ret = read(fd, buf, len); |
781
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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780
diff
changeset
|
504 if (ret == 0) { |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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changeset
|
505 /* disconnected */ |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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parents:
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diff
changeset
|
506 errno = 0; |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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diff
changeset
|
507 return -2; |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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diff
changeset
|
508 } |
0 | 509 |
6825
85385079b044
Use likely() and unlikely() macros to make commonly checked error handling
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6666
diff
changeset
|
510 if (unlikely(ret < 0)) { |
781
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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parents:
780
diff
changeset
|
511 if (errno == EINTR || errno == EAGAIN) |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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parents:
780
diff
changeset
|
512 return 0; |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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parents:
780
diff
changeset
|
513 |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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parents:
780
diff
changeset
|
514 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
|
515 /* treat as disconnection */ |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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parents:
780
diff
changeset
|
516 return -2; |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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diff
changeset
|
517 } |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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780
diff
changeset
|
518 } |
0 | 519 |
520 return ret; | |
521 } | |
522 | |
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
|
523 ssize_t net_transmit(int fd, const void *data, size_t len) |
0 | 524 { |
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
|
525 ssize_t ret; |
0 | 526 |
527 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
|
528 i_assert(len <= SSIZE_T_MAX); |
0 | 529 |
64
83ae914a583a
added t_strdup_noconst() which can be used instead of (char *) t_strdup().
Timo Sirainen <tss@iki.fi>
parents:
34
diff
changeset
|
530 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
|
531 if (unlikely(ret == -1 && (errno == EINTR || errno == EAGAIN))) |
781
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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parents:
780
diff
changeset
|
532 return 0; |
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
Timo Sirainen <tss@iki.fi>
parents:
780
diff
changeset
|
533 |
6825
85385079b044
Use likely() and unlikely() macros to make commonly checked error handling
Timo Sirainen <tss@iki.fi>
parents:
6666
diff
changeset
|
534 if (unlikely(errno == EPIPE)) |
781
9cb7022749e7
net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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parents:
780
diff
changeset
|
535 return -2; |
0 | 536 |
537 return ret; | |
538 } | |
539 | |
4745
7ee0bb1b2d97
Changed ips_count to unsigned int in net_gethostbyname(). Also removed
Timo Sirainen <tss@iki.fi>
parents:
4699
diff
changeset
|
540 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
|
541 unsigned int *ips_count) |
0 | 542 { |
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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parents:
781
diff
changeset
|
543 /* @UNSAFE */ |
0 | 544 #ifdef HAVE_IPV6 |
545 union sockaddr_union *so; | |
546 struct addrinfo hints, *ai, *origai; | |
547 int host_error; | |
548 #else | |
549 struct hostent *hp; | |
550 #endif | |
551 int count; | |
552 | |
553 *ips = NULL; | |
554 *ips_count = 0; | |
555 | |
556 #ifdef HAVE_IPV6 | |
557 memset(&hints, 0, sizeof(struct addrinfo)); | |
558 hints.ai_socktype = SOCK_STREAM; | |
559 | |
560 /* save error to host_error for later use */ | |
561 host_error = getaddrinfo(addr, NULL, &hints, &ai); | |
562 if (host_error != 0) | |
563 return host_error; | |
564 | |
565 /* get number of IPs */ | |
566 origai = ai; | |
567 for (count = 0; ai != NULL; ai = ai->ai_next) | |
568 count++; | |
569 | |
570 *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
|
571 *ips = t_malloc(sizeof(struct ip_addr) * count); |
0 | 572 |
573 count = 0; | |
574 for (ai = origai; ai != NULL; ai = ai->ai_next, count++) { | |
575 so = (union sockaddr_union *) ai->ai_addr; | |
576 | |
2113
c5817f302aa6
net_gethostbyname() was broken with IPv6 enabled (wasn't really used with
Timo Sirainen <tss@iki.fi>
parents:
2098
diff
changeset
|
577 sin_get_ip(so, &(*ips)[count]); |
0 | 578 } |
579 freeaddrinfo(origai); | |
580 #else | |
581 hp = gethostbyname(addr); | |
582 if (hp == NULL) | |
583 return h_errno; | |
584 | |
585 /* get number of IPs */ | |
586 count = 0; | |
587 while (hp->h_addr_list[count] != NULL) | |
588 count++; | |
589 | |
590 *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
|
591 *ips = t_malloc(sizeof(struct ip_addr) * count); |
0 | 592 |
593 while (count > 0) { | |
594 count--; | |
595 | |
596 (*ips)[count].family = AF_INET; | |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
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parents:
5865
diff
changeset
|
597 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
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parents:
5865
diff
changeset
|
598 sizeof((*ips)[count].u.ip4)); |
0 | 599 } |
600 #endif | |
601 | |
602 return 0; | |
603 } | |
604 | |
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents:
807
diff
changeset
|
605 int net_getsockname(int fd, struct ip_addr *addr, unsigned int *port) |
0 | 606 { |
607 union sockaddr_union so; | |
608 socklen_t addrlen; | |
609 | |
610 i_assert(fd >= 0); | |
611 | |
612 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
|
613 if (getsockname(fd, &so.sa, &addrlen) == -1) |
0 | 614 return -1; |
615 | |
616 if (addr != NULL) sin_get_ip(&so, addr); | |
617 if (port != NULL) *port = sin_get_port(&so); | |
618 | |
619 return 0; | |
620 } | |
621 | |
2098 | 622 int net_getpeername(int fd, struct ip_addr *addr, unsigned int *port) |
623 { | |
624 union sockaddr_union so; | |
625 socklen_t addrlen; | |
626 | |
627 i_assert(fd >= 0); | |
628 | |
629 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
|
630 if (getpeername(fd, &so.sa, &addrlen) == -1) |
2098 | 631 return -1; |
632 | |
633 if (addr != NULL) sin_get_ip(&so, addr); | |
634 if (port != NULL) *port = sin_get_port(&so); | |
635 | |
636 return 0; | |
637 } | |
638 | |
9843 | 639 int net_getunixname(int fd, const char **name_r) |
640 { | |
641 struct sockaddr_un sa; | |
642 socklen_t addrlen = sizeof(sa); | |
643 | |
644 if (getsockname(fd, (void *)&sa, &addrlen) < 0) | |
645 return -1; | |
646 if (sa.sun_family != AF_UNIX) { | |
647 errno = ENOTSOCK; | |
648 return -1; | |
649 } | |
650 *name_r = t_strdup(sa.sun_path); | |
651 return 0; | |
652 } | |
653 | |
1485
8c28289a15a1
s/host/addr/ in a few network functions
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parents:
1268
diff
changeset
|
654 const char *net_ip2addr(const struct ip_addr *ip) |
0 | 655 { |
656 #ifdef HAVE_IPV6 | |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
657 char addr[MAX_IP_LEN+1]; |
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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parents:
781
diff
changeset
|
658 |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
659 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
|
660 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
|
661 return NULL; |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
662 |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
663 return t_strdup(addr); |
0 | 664 #else |
665 unsigned long ip4; | |
666 | |
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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parents:
781
diff
changeset
|
667 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
|
668 return NULL; |
0 | 669 |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
670 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
|
671 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
|
672 (ip4 & 0xff000000UL) >> 24, |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
673 (ip4 & 0x00ff0000) >> 16, |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
674 (ip4 & 0x0000ff00) >> 8, |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
675 (ip4 & 0x000000ff)); |
0 | 676 #endif |
677 } | |
678 | |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
679 int net_addr2ip(const char *addr, struct ip_addr *ip) |
0 | 680 { |
11448
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
681 int ret; |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
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parents:
11340
diff
changeset
|
682 |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
683 if (strchr(addr, ':') != NULL) { |
0 | 684 /* IPv6 */ |
685 ip->family = AF_INET6; | |
686 #ifdef HAVE_IPV6 | |
11448
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
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parents:
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diff
changeset
|
687 T_BEGIN { |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
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parents:
11340
diff
changeset
|
688 if (addr[0] == '[') { |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
689 /* allow [ipv6 addr] */ |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
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parents:
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diff
changeset
|
690 unsigned int len = strlen(addr); |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
Timo Sirainen <tss@iki.fi>
parents:
11340
diff
changeset
|
691 if (addr[len-1] == ']') |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
Timo Sirainen <tss@iki.fi>
parents:
11340
diff
changeset
|
692 addr = t_strndup(addr+1, len-2); |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
693 } |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
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parents:
11340
diff
changeset
|
694 ret = inet_pton(AF_INET6, addr, &ip->u.ip6); |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
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parents:
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diff
changeset
|
695 } T_END; |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
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parents:
11340
diff
changeset
|
696 if (ret == 0) |
0 | 697 return -1; |
698 #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
|
699 ip->u.ip4.s_addr = 0; |
0 | 700 #endif |
701 } else { | |
702 /* IPv4 */ | |
703 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
|
704 if (inet_aton(addr, &ip->u.ip4) == 0) |
0 | 705 return -1; |
706 } | |
707 | |
708 return 0; | |
709 } | |
710 | |
4684
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
711 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
|
712 struct ip_addr *dest) |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
713 { |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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parents:
4018
diff
changeset
|
714 #ifdef HAVE_IPV6 |
4699
9e4cc68b71b2
Fix net_ipv6_mapped_ipv4_convert() to be actually portable.
Timo Sirainen <tss@iki.fi>
parents:
4684
diff
changeset
|
715 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
|
716 { 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
|
717 |
4684
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
718 if (!IPADDR_IS_V6(src)) |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
719 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
|
720 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
|
721 return -1; |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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parents:
4018
diff
changeset
|
722 |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
723 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
|
724 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
|
725 return 0; |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
726 #else |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
727 return -1; |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
728 #endif |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
729 } |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
730 |
0 | 731 int net_geterror(int fd) |
732 { | |
733 int data; | |
734 socklen_t len = sizeof(data); | |
735 | |
736 if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &data, &len) == -1) | |
737 return -1; | |
738 | |
739 return data; | |
740 } | |
741 | |
742 const char *net_gethosterror(int error) | |
743 { | |
744 #ifdef HAVE_IPV6 | |
745 i_assert(error != 0); | |
746 | |
747 return gai_strerror(error); | |
748 #else | |
749 switch (error) { | |
750 case HOST_NOT_FOUND: | |
751 return "Host not found"; | |
752 case NO_ADDRESS: | |
753 return "No IP address found for name"; | |
754 case NO_RECOVERY: | |
6666 | 755 return "A non-recoverable name server error occurred"; |
0 | 756 case TRY_AGAIN: |
757 return "A temporary error on an authoritative name server"; | |
758 } | |
759 | |
760 /* unknown error */ | |
761 return NULL; | |
762 #endif | |
763 } | |
764 | |
765 int net_hosterror_notfound(int error) | |
766 { | |
767 #ifdef HAVE_IPV6 | |
1915
79790750c349
importing new index code. mbox still broken.
Timo Sirainen <tss@iki.fi>
parents:
1871
diff
changeset
|
768 #ifdef EAI_NODATA /* NODATA is depricated */ |
0 | 769 return error != 1 && (error == EAI_NONAME || error == EAI_NODATA); |
770 #else | |
1915
79790750c349
importing new index code. mbox still broken.
Timo Sirainen <tss@iki.fi>
parents:
1871
diff
changeset
|
771 return error != 1 && (error == EAI_NONAME); |
79790750c349
importing new index code. mbox still broken.
Timo Sirainen <tss@iki.fi>
parents:
1871
diff
changeset
|
772 #endif |
79790750c349
importing new index code. mbox still broken.
Timo Sirainen <tss@iki.fi>
parents:
1871
diff
changeset
|
773 #else |
0 | 774 return error == HOST_NOT_FOUND || error == NO_ADDRESS; |
775 #endif | |
776 } | |
777 | |
2113
c5817f302aa6
net_gethostbyname() was broken with IPv6 enabled (wasn't really used with
Timo Sirainen <tss@iki.fi>
parents:
2098
diff
changeset
|
778 const char *net_getservbyport(unsigned short port) |
0 | 779 { |
780 struct servent *entry; | |
781 | |
349 | 782 entry = getservbyport(htons(port), "tcp"); |
0 | 783 return entry == NULL ? NULL : entry->s_name; |
784 } | |
785 | |
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
|
786 bool is_ipv4_address(const char *addr) |
0 | 787 { |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
788 while (*addr != '\0') { |
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
789 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
|
790 return FALSE; |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
791 addr++; |
0 | 792 } |
793 | |
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
|
794 return TRUE; |
0 | 795 } |
796 | |
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
|
797 bool is_ipv6_address(const char *addr) |
0 | 798 { |
11448
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
Timo Sirainen <tss@iki.fi>
parents:
11340
diff
changeset
|
799 bool have_prefix = FALSE; |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
Timo Sirainen <tss@iki.fi>
parents:
11340
diff
changeset
|
800 |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
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parents:
11340
diff
changeset
|
801 if (*addr == '[') { |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
Timo Sirainen <tss@iki.fi>
parents:
11340
diff
changeset
|
802 have_prefix = TRUE; |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
Timo Sirainen <tss@iki.fi>
parents:
11340
diff
changeset
|
803 addr++; |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
Timo Sirainen <tss@iki.fi>
parents:
11340
diff
changeset
|
804 } |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
805 while (*addr != '\0') { |
11448
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
Timo Sirainen <tss@iki.fi>
parents:
11340
diff
changeset
|
806 if (*addr != ':' && !i_isxdigit(*addr)) { |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
Timo Sirainen <tss@iki.fi>
parents:
11340
diff
changeset
|
807 if (have_prefix && *addr == ']' && addr[1] == '\0') |
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
Timo Sirainen <tss@iki.fi>
parents:
11340
diff
changeset
|
808 break; |
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
|
809 return FALSE; |
11448
bdb46ba87203
Added support for [] around ipv6 addresses everywhere.
Timo Sirainen <tss@iki.fi>
parents:
11340
diff
changeset
|
810 } |
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
811 addr++; |
0 | 812 } |
813 | |
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
|
814 return TRUE; |
0 | 815 } |
7517
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
816 |
7919
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
817 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
|
818 unsigned int *bits_r) |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
819 { |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
820 const char *p; |
11086
260e190306b0
Started using str_to_*() functions instead of libc's ones.
Timo Sirainen <tss@iki.fi>
parents:
10789
diff
changeset
|
821 unsigned int bits, max_bits; |
7919
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
822 |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
823 p = strchr(network, '/'); |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
824 if (p != NULL) |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
825 network = t_strdup_until(network, p++); |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
826 |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
827 if (net_addr2ip(network, ip_r) < 0) |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
828 return -1; |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
829 |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
830 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
|
831 if (p == NULL) { |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
832 /* full IP address must match */ |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
833 bits = max_bits; |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
834 } else { |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
835 /* get the network mask */ |
11086
260e190306b0
Started using str_to_*() functions instead of libc's ones.
Timo Sirainen <tss@iki.fi>
parents:
10789
diff
changeset
|
836 if (str_to_uint(p, &bits) < 0 || bits > max_bits) |
7919
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
837 return -1; |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
838 } |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
839 *bits_r = bits; |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
840 return 0; |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
841 } |
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
842 |
7517
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
843 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
|
844 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
|
845 { |
7919
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
846 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
|
847 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
|
848 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
|
849 unsigned int pos, i; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
850 |
7919
423b8e3fedbb
Created net_parse_range() from auth code.
Timo Sirainen <tss@iki.fi>
parents:
7520
diff
changeset
|
851 if (net_ipv6_mapped_ipv4_convert(ip, &tmp_ip) == 0) { |
423b8e3fedbb
Created net_parse_range() from auth code.
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852 /* IPv4 address mapped disguised as IPv6 address */ |
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Created net_parse_range() from auth code.
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853 ip = &tmp_ip; |
423b8e3fedbb
Created net_parse_range() from auth code.
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854 } |
423b8e3fedbb
Created net_parse_range() from auth code.
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855 |
7517
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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856 if (IPADDR_IS_V4(ip) != IPADDR_IS_V4(net_ip)) { |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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857 /* one is IPv6 and one is IPv4 */ |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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858 return FALSE; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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859 } |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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860 i_assert(IPADDR_IS_V6(ip) == IPADDR_IS_V6(net_ip)); |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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861 |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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862 if (IPADDR_IS_V4(ip)) { |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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parents:
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863 ip1 = &ip->u.ip4.s_addr; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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864 ip2 = &net_ip->u.ip4.s_addr; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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865 } else { |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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866 #ifdef HAVE_IPV6 |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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867 ip1 = (const void *)&ip->u.ip6; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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868 ip2 = (const void *)&net_ip->u.ip6; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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869 #else |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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870 /* shouldn't get here */ |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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871 return FALSE; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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872 #endif |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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873 } |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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874 |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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875 /* check first the full 32bit ints */ |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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876 for (pos = 0, i = 0; pos + 32 <= bits; pos += 32, i++) { |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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877 if (ip1[i] != ip2[i]) |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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878 return FALSE; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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879 } |
7520
85203e817f90
net_is_in_network(): Fixed to work with big endian machines.
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880 i1 = htonl(ip1[i]); |
85203e817f90
net_is_in_network(): Fixed to work with big endian machines.
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parents:
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changeset
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881 i2 = htonl(ip2[i]); |
7517
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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parents:
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882 |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
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parents:
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|
883 /* check the last full bytes */ |
7520
85203e817f90
net_is_in_network(): Fixed to work with big endian machines.
Timo Sirainen <tss@iki.fi>
parents:
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changeset
|
884 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
|
885 if ((i1 & mask) != (i2 & mask)) |
7517
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
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changeset
|
886 return FALSE; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
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|
887 } |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
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changeset
|
888 |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
diff
changeset
|
889 /* 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:
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changeset
|
890 bits -= pos; |
7520
85203e817f90
net_is_in_network(): Fixed to work with big endian machines.
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
891 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
|
892 if ((i1 & mask) != (i2 & mask)) |
7517
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
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changeset
|
893 return FALSE; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
7274
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changeset
|
894 } |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
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changeset
|
895 return TRUE; |
e0007da64cdc
Moved net_is_in_network() to lib/network.c.
Timo Sirainen <tss@iki.fi>
parents:
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changeset
|
896 } |