Files
@ r11601:1946438aceee
Branch filter:
Location: cpp/openttd-patchpack/source/src/network/core/address.cpp - annotation
r11601:1946438aceee
8.9 KiB
text/x-c
(svn r15980) -Codechange: don't try to bind to the same socket twice; it's quite pointless.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 | r10828:d8d68d002525 r10828:d8d68d002525 r10828:d8d68d002525 r10828:d8d68d002525 r10828:d8d68d002525 r10828:d8d68d002525 r10828:d8d68d002525 r10828:d8d68d002525 r10828:d8d68d002525 r11544:5b7269ee2600 r10828:d8d68d002525 r11544:5b7269ee2600 r11550:baebd05afdd5 r10828:d8d68d002525 r11545:27d3f758c0c0 r10828:d8d68d002525 r11590:2bff4ec7f0ca r11551:57af1dbb6426 r11597:39dbd2f0af04 r11597:39dbd2f0af04 r11597:39dbd2f0af04 r11597:39dbd2f0af04 r11545:27d3f758c0c0 r11545:27d3f758c0c0 r10828:d8d68d002525 r10828:d8d68d002525 r11545:27d3f758c0c0 r11545:27d3f758c0c0 r11545:27d3f758c0c0 r11567:a288e946756b r11545:27d3f758c0c0 r11545:27d3f758c0c0 r11545:27d3f758c0c0 r11567:a288e946756b r11567:a288e946756b r11567:a288e946756b r11545:27d3f758c0c0 r11545:27d3f758c0c0 r11545:27d3f758c0c0 r11545:27d3f758c0c0 r11545:27d3f758c0c0 r11546:a4422f41f18b r11546:a4422f41f18b r11546:a4422f41f18b r11567:a288e946756b r11546:a4422f41f18b r11546:a4422f41f18b r11546:a4422f41f18b r11546:a4422f41f18b r11567:a288e946756b r11567:a288e946756b r11567:a288e946756b r11567:a288e946756b r11546:a4422f41f18b r11546:a4422f41f18b r11546:a4422f41f18b r11546:a4422f41f18b r11546:a4422f41f18b r11545:27d3f758c0c0 r11544:5b7269ee2600 r11544:5b7269ee2600 r11590:2bff4ec7f0ca r11544:5b7269ee2600 r11590:2bff4ec7f0ca r11590:2bff4ec7f0ca r11590:2bff4ec7f0ca r11590:2bff4ec7f0ca r11590:2bff4ec7f0ca r11590:2bff4ec7f0ca r11590:2bff4ec7f0ca r11544:5b7269ee2600 r11544:5b7269ee2600 r11544:5b7269ee2600 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11545:27d3f758c0c0 r11545:27d3f758c0c0 r11563:327fc220de5f r11563:327fc220de5f r11563:327fc220de5f r11563:327fc220de5f r11563:327fc220de5f r11563:327fc220de5f r11592:12c71fbe8d50 r11563:327fc220de5f r11545:27d3f758c0c0 r11545:27d3f758c0c0 r11545:27d3f758c0c0 r11597:39dbd2f0af04 r11597:39dbd2f0af04 r11597:39dbd2f0af04 r11597:39dbd2f0af04 r11597:39dbd2f0af04 r11597:39dbd2f0af04 r11597:39dbd2f0af04 r11597:39dbd2f0af04 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11575:5837a901dd30 r11575:5837a901dd30 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11576:d4ddcc5bdcdd r11576:d4ddcc5bdcdd r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11575:5837a901dd30 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11572:9d570d041dd0 r11592:12c71fbe8d50 r11550:baebd05afdd5 r11550:baebd05afdd5 r11550:baebd05afdd5 r11550:baebd05afdd5 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11550:baebd05afdd5 r11550:baebd05afdd5 r11550:baebd05afdd5 r11550:baebd05afdd5 r11550:baebd05afdd5 r11592:12c71fbe8d50 r11592:12c71fbe8d50 r11592:12c71fbe8d50 r11594:8bc11e23f437 r11590:2bff4ec7f0ca r11590:2bff4ec7f0ca r11590:2bff4ec7f0ca r11594:8bc11e23f437 r11550:baebd05afdd5 r11600:f260c7943b75 r11600:f260c7943b75 r11600:f260c7943b75 r11552:e4906bd09074 r11550:baebd05afdd5 r11550:baebd05afdd5 r11550:baebd05afdd5 r11550:baebd05afdd5 r11601:1946438aceee r11601:1946438aceee r11601:1946438aceee r11601:1946438aceee r11601:1946438aceee r11601:1946438aceee r11601:1946438aceee r11553:665b4b3ba421 r11550:baebd05afdd5 r11550:baebd05afdd5 r11592:12c71fbe8d50 r11592:12c71fbe8d50 r11592:12c71fbe8d50 r11592:12c71fbe8d50 r11592:12c71fbe8d50 r11592:12c71fbe8d50 r11592:12c71fbe8d50 r11592:12c71fbe8d50 r11592:12c71fbe8d50 r11592:12c71fbe8d50 r11550:baebd05afdd5 r11550:baebd05afdd5 r11550:baebd05afdd5 r11550:baebd05afdd5 r11550:baebd05afdd5 r11550:baebd05afdd5 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11552:e4906bd09074 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11552:e4906bd09074 r11552:e4906bd09074 r11552:e4906bd09074 r11553:665b4b3ba421 r11552:e4906bd09074 r11553:665b4b3ba421 r11553:665b4b3ba421 r11554:f1b15f8b877f r11553:665b4b3ba421 r11553:665b4b3ba421 r11552:e4906bd09074 r11553:665b4b3ba421 r11553:665b4b3ba421 r11552:e4906bd09074 r11552:e4906bd09074 r11552:e4906bd09074 r11552:e4906bd09074 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11592:12c71fbe8d50 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11598:a011ae1c18aa r11598:a011ae1c18aa r11598:a011ae1c18aa r11553:665b4b3ba421 r11553:665b4b3ba421 r11600:f260c7943b75 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11592:12c71fbe8d50 r11600:f260c7943b75 r11592:12c71fbe8d50 r11553:665b4b3ba421 r11570:646f1145f9b4 r11566:534ee1ff4324 r11570:646f1145f9b4 r11600:f260c7943b75 r11570:646f1145f9b4 r11570:646f1145f9b4 r11570:646f1145f9b4 r11570:646f1145f9b4 r11600:f260c7943b75 r11566:534ee1ff4324 r11566:534ee1ff4324 r11553:665b4b3ba421 r11598:a011ae1c18aa r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11598:a011ae1c18aa r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11598:a011ae1c18aa r11553:665b4b3ba421 r11598:a011ae1c18aa r11553:665b4b3ba421 r11553:665b4b3ba421 r11553:665b4b3ba421 r11594:8bc11e23f437 r11553:665b4b3ba421 r11594:8bc11e23f437 r11553:665b4b3ba421 r11553:665b4b3ba421 r10828:d8d68d002525 | /* $Id$ */
/** @file core/address.cpp Implementation of the address. */
#include "../../stdafx.h"
#ifdef ENABLE_NETWORK
#include "address.h"
#include "config.h"
#include "host.h"
#include "../../string_func.h"
#include "../../debug.h"
const char *NetworkAddress::GetHostname()
{
if (StrEmpty(this->hostname)) {
assert(this->address_length != 0);
char *buf = this->hostname;
if (this->address.ss_family == AF_INET6) buf = strecpy(buf, "[", lastof(this->hostname));
getnameinfo((struct sockaddr *)&this->address, this->address_length, buf, lastof(this->hostname) - buf, NULL, 0, NI_NUMERICHOST);
if (this->address.ss_family == AF_INET6) strecat(buf, "]", lastof(this->hostname));
}
return this->hostname;
}
uint16 NetworkAddress::GetPort() const
{
switch (this->address.ss_family) {
case AF_UNSPEC:
case AF_INET:
return ntohs(((struct sockaddr_in *)&this->address)->sin_port);
case AF_INET6:
return ntohs(((struct sockaddr_in6 *)&this->address)->sin6_port);
default:
NOT_REACHED();
}
}
void NetworkAddress::SetPort(uint16 port)
{
switch (this->address.ss_family) {
case AF_UNSPEC:
case AF_INET:
((struct sockaddr_in*)&this->address)->sin_port = htons(port);
break;
case AF_INET6:
((struct sockaddr_in6*)&this->address)->sin6_port = htons(port);
break;
default:
NOT_REACHED();
}
}
const char *NetworkAddress::GetAddressAsString()
{
/* 6 = for the : and 5 for the decimal port number */
static char buf[NETWORK_HOSTNAME_LENGTH + 6 + 7];
char family;
switch (this->address.ss_family) {
case AF_INET: family = '4'; break;
case AF_INET6: family = '6'; break;
default: family = '?'; break;
}
seprintf(buf, lastof(buf), "%s:%d (IPv%c)", this->GetHostname(), this->GetPort(), family);
return buf;
}
/**
* Helper function to resolve without opening a socket.
* @param runp information about the socket to try not
* @return the opened socket or INVALID_SOCKET
*/
static SOCKET ResolveLoopProc(addrinfo *runp)
{
/* We just want the first 'entry', so return a valid socket. */
return !INVALID_SOCKET;
}
const sockaddr_storage *NetworkAddress::GetAddress()
{
if (!this->IsResolved()) {
/* Here we try to resolve a network address. We use SOCK_STREAM as
* socket type because some stupid OSes, like Solaris, cannot be
* bothered to implement the specifications and allow '0' as value
* that means "don't care whether it is SOCK_STREAM or SOCK_DGRAM".
*/
this->Resolve(this->address.ss_family, SOCK_STREAM, AI_ADDRCONFIG, NULL, ResolveLoopProc);
}
return &this->address;
}
bool NetworkAddress::IsFamily(int family)
{
if (!this->IsResolved()) {
this->Resolve(family, SOCK_STREAM, AI_ADDRCONFIG, NULL, ResolveLoopProc);
}
return this->address.ss_family == family;
}
bool NetworkAddress::IsInNetmask(char *netmask)
{
/* Resolve it if we didn't do it already */
if (!this->IsResolved()) this->GetAddress();
int cidr = this->address.ss_family == AF_INET ? 32 : 128;
NetworkAddress mask_address;
/* Check for CIDR separator */
char *chr_cidr = strchr(netmask, '/');
if (chr_cidr != NULL) {
int tmp_cidr = atoi(chr_cidr + 1);
/* Invalid CIDR, treat as single host */
if (tmp_cidr > 0 || tmp_cidr < cidr) cidr = tmp_cidr;
/* Remove and then replace the / so that NetworkAddress works on the IP portion */
*chr_cidr = '\0';
mask_address = NetworkAddress(netmask, 0, this->address.ss_family);
*chr_cidr = '/';
} else {
mask_address = NetworkAddress(netmask, 0, this->address.ss_family);
}
if (mask_address.GetAddressLength() == 0) return false;
uint32 *ip;
uint32 *mask;
switch (this->address.ss_family) {
case AF_INET:
ip = (uint32*)&((struct sockaddr_in*)&this->address)->sin_addr.s_addr;
mask = (uint32*)&((struct sockaddr_in*)&mask_address.address)->sin_addr.s_addr;
break;
case AF_INET6:
ip = (uint32*)&((struct sockaddr_in6*)&this->address)->sin6_addr;
mask = (uint32*)&((struct sockaddr_in6*)&mask_address.address)->sin6_addr;
break;
default:
NOT_REACHED();
}
while (cidr > 0) {
uint32 msk = cidr >= 32 ? (uint32)-1 : htonl(-(1 << (32 - cidr)));
if ((*mask & msk) != (*ip & msk)) return false;
cidr -= 32;
}
return true;
}
SOCKET NetworkAddress::Resolve(int family, int socktype, int flags, SocketList *sockets, LoopProc func)
{
struct addrinfo *ai;
struct addrinfo hints;
memset(&hints, 0, sizeof (hints));
hints.ai_family = family;
hints.ai_flags = flags;
hints.ai_socktype = socktype;
/* The port needs to be a string. Six is enough to contain all characters + '\0'. */
char port_name[6];
seprintf(port_name, lastof(port_name), "%u", this->GetPort());
/* Setting both hostname to NULL and port to 0 is not allowed.
* As port 0 means bind to any port, the other must mean that
* we want to bind to 'all' IPs. */
if (this->address_length == 0 && this->GetPort() == 0) {
strecpy(this->hostname, this->address.ss_family == AF_INET ? "0.0.0.0" : "::", lastof(this->hostname));
}
int e = getaddrinfo(StrEmpty(this->hostname) ? NULL : this->hostname, port_name, &hints, &ai);
if (e != 0) {
if (func != ResolveLoopProc) {
DEBUG(net, 0, "getaddrinfo(%s, %s) failed: %s", this->hostname, port_name, FS2OTTD(gai_strerror(e)));
}
return INVALID_SOCKET;
}
SOCKET sock = INVALID_SOCKET;
for (struct addrinfo *runp = ai; runp != NULL; runp = runp->ai_next) {
/* When we are binding to multiple sockets, make sure we do not
* connect to one with exactly the same address twice. That's
* ofcourse totally unneeded ;) */
if (sockets != NULL) {
NetworkAddress address(runp->ai_addr, runp->ai_addrlen);
if (sockets->Find(address) != sockets->End()) continue;
}
sock = func(runp);
if (sock == INVALID_SOCKET) continue;
if (sockets == NULL) {
this->address_length = runp->ai_addrlen;
assert(sizeof(this->address) >= runp->ai_addrlen);
memcpy(&this->address, runp->ai_addr, runp->ai_addrlen);
break;
}
NetworkAddress addr(runp->ai_addr, runp->ai_addrlen);
(*sockets)[addr] = sock;
sock = INVALID_SOCKET;
}
freeaddrinfo (ai);
return sock;
}
/**
* Helper function to resolve a connected socket.
* @param runp information about the socket to try not
* @return the opened socket or INVALID_SOCKET
*/
static SOCKET ConnectLoopProc(addrinfo *runp)
{
SOCKET sock = socket(runp->ai_family, runp->ai_socktype, runp->ai_protocol);
if (sock == INVALID_SOCKET) {
DEBUG(net, 1, "Could not create socket: %s", strerror(errno));
return INVALID_SOCKET;
}
if (!SetNoDelay(sock)) DEBUG(net, 1, "Setting TCP_NODELAY failed");
if (connect(sock, runp->ai_addr, runp->ai_addrlen) != 0) {
DEBUG(net, 1, "Could not connect socket: %s", strerror(errno));
closesocket(sock);
return INVALID_SOCKET;
}
/* Connection succeeded */
if (!SetNonBlocking(sock)) DEBUG(net, 0, "Setting non-blocking mode failed");
return sock;
}
SOCKET NetworkAddress::Connect()
{
DEBUG(net, 1, "Connecting to %s", this->GetAddressAsString());
return this->Resolve(0, SOCK_STREAM, AI_ADDRCONFIG, NULL, ConnectLoopProc);
}
/**
* Helper function to resolve a listening.
* @param runp information about the socket to try not
* @return the opened socket or INVALID_SOCKET
*/
static SOCKET ListenLoopProc(addrinfo *runp)
{
const char *type = runp->ai_socktype == SOCK_STREAM ? "tcp" : "udp";
const char *address = NetworkAddress(runp->ai_addr, runp->ai_addrlen).GetAddressAsString();
SOCKET sock = socket(runp->ai_family, runp->ai_socktype, runp->ai_protocol);
if (sock == INVALID_SOCKET) {
DEBUG(net, 0, "[%s] Could not create socket on port %s: %s", type, address, strerror(errno));
return INVALID_SOCKET;
}
if (runp->ai_socktype == SOCK_STREAM && !SetNoDelay(sock)) {
DEBUG(net, 3, "[%s] Setting TCP_NODELAY failed for port %s", type, address);
}
int on = 1;
/* The (const char*) cast is needed for windows!! */
if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (const char*)&on, sizeof(on)) == -1) {
DEBUG(net, 3, "[%s] Could not set reusable sockets for port %s: %s", type, address, strerror(errno));
}
if (runp->ai_family == AF_INET6 &&
setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, (const char*)&on, sizeof(on)) == -1) {
DEBUG(net, 3, "[%s] Could not disable IPv4 over IPv6 on port %s: %s", type, address, strerror(errno));
}
if (bind(sock, runp->ai_addr, runp->ai_addrlen) != 0) {
DEBUG(net, 1, "[%s] Could not bind on port %s: %s", type, address, strerror(errno));
closesocket(sock);
return INVALID_SOCKET;
}
if (runp->ai_socktype != SOCK_DGRAM && listen(sock, 1) != 0) {
DEBUG(net, 1, "[%s] Could not listen at port %s: %s", type, address, strerror(errno));
closesocket(sock);
return INVALID_SOCKET;
}
/* Connection succeeded */
if (!SetNonBlocking(sock)) DEBUG(net, 0, "[%s] Setting non-blocking mode failed for port %s", type, address);
DEBUG(net, 1, "[%s] Listening on port %s", type, address);
return sock;
}
SOCKET NetworkAddress::Listen(int socktype, SocketList *sockets)
{
return this->Resolve(AF_UNSPEC, socktype, AI_ADDRCONFIG | AI_PASSIVE, sockets, ListenLoopProc);
}
#endif /* ENABLE_NETWORK */
|