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-rw-r--r--node/InetAddress.cpp239
1 files changed, 126 insertions, 113 deletions
diff --git a/node/InetAddress.cpp b/node/InetAddress.cpp
index 7d22eeae..36b4e434 100644
--- a/node/InetAddress.cpp
+++ b/node/InetAddress.cpp
@@ -1,11 +1,11 @@
/*
* ZeroTier One - Network Virtualization Everywhere
- * Copyright (C) 2011-2016 ZeroTier, Inc. https://www.zerotier.com/
+ * Copyright (C) 2011-2018 ZeroTier, Inc. https://www.zerotier.com/
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
+ * (at your oion) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -14,6 +14,14 @@
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * You can be released from the requirements of the license by purchasing
+ * a commercial license. Buying such a license is mandatory as soon as you
+ * develop commercial closed-source software that incorporates or links
+ * directly against ZeroTier software without disclosing the source code
+ * of your own application.
*/
#include <stdio.h>
@@ -32,7 +40,6 @@ const InetAddress InetAddress::LO4((const void *)("\x7f\x00\x00\x01"),4,0);
const InetAddress InetAddress::LO6((const void *)("\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01"),16,0);
InetAddress::IpScope InetAddress::ipScope() const
- throw()
{
switch(ss_family) {
@@ -55,7 +62,7 @@ InetAddress::IpScope InetAddress::ipScope() const
case 0x37: return IP_SCOPE_PSEUDOPRIVATE; // 55.0.0.0/8 (US DoD)
case 0x38: return IP_SCOPE_PSEUDOPRIVATE; // 56.0.0.0/8 (US Postal Service)
case 0x64:
- if ((ip & 0xffc00000) == 0x64400000) return IP_SCOPE_SHARED; // 100.64.0.0/10
+ if ((ip & 0xffc00000) == 0x64400000) return IP_SCOPE_PRIVATE; // 100.64.0.0/10
break;
case 0x7f: return IP_SCOPE_LOOPBACK; // 127.0.0.0/8
case 0xa9:
@@ -103,126 +110,114 @@ InetAddress::IpScope InetAddress::ipScope() const
return IP_SCOPE_NONE;
}
-void InetAddress::set(const std::string &ip,unsigned int port)
- throw()
-{
- memset(this,0,sizeof(InetAddress));
- if (ip.find(':') != std::string::npos) {
- struct sockaddr_in6 *sin6 = reinterpret_cast<struct sockaddr_in6 *>(this);
- ss_family = AF_INET6;
- sin6->sin6_port = Utils::hton((uint16_t)port);
- if (inet_pton(AF_INET6,ip.c_str(),(void *)&(sin6->sin6_addr.s6_addr)) <= 0)
- memset(this,0,sizeof(InetAddress));
- } else if (ip.find('.') != std::string::npos) {
- struct sockaddr_in *sin = reinterpret_cast<struct sockaddr_in *>(this);
- ss_family = AF_INET;
- sin->sin_port = Utils::hton((uint16_t)port);
- if (inet_pton(AF_INET,ip.c_str(),(void *)&(sin->sin_addr.s_addr)) <= 0)
- memset(this,0,sizeof(InetAddress));
- }
-}
-
void InetAddress::set(const void *ipBytes,unsigned int ipLen,unsigned int port)
- throw()
{
memset(this,0,sizeof(InetAddress));
if (ipLen == 4) {
uint32_t ipb[1];
- memcpy(ipb,ipBytes,4);
+ ZT_FAST_MEMCPY(ipb,ipBytes,4);
ss_family = AF_INET;
reinterpret_cast<struct sockaddr_in *>(this)->sin_addr.s_addr = ipb[0];
reinterpret_cast<struct sockaddr_in *>(this)->sin_port = Utils::hton((uint16_t)port);
} else if (ipLen == 16) {
ss_family = AF_INET6;
- memcpy(reinterpret_cast<struct sockaddr_in6 *>(this)->sin6_addr.s6_addr,ipBytes,16);
+ ZT_FAST_MEMCPY(reinterpret_cast<struct sockaddr_in6 *>(this)->sin6_addr.s6_addr,ipBytes,16);
reinterpret_cast<struct sockaddr_in6 *>(this)->sin6_port = Utils::hton((uint16_t)port);
}
}
-std::string InetAddress::toString() const
+char *InetAddress::toString(char buf[64]) const
{
- char buf[128];
- switch(ss_family) {
- case AF_INET:
- Utils::snprintf(buf,sizeof(buf),"%d.%d.%d.%d/%d",
- (int)(reinterpret_cast<const unsigned char *>(&(reinterpret_cast<const struct sockaddr_in *>(this)->sin_addr.s_addr)))[0],
- (int)(reinterpret_cast<const unsigned char *>(&(reinterpret_cast<const struct sockaddr_in *>(this)->sin_addr.s_addr)))[1],
- (int)(reinterpret_cast<const unsigned char *>(&(reinterpret_cast<const struct sockaddr_in *>(this)->sin_addr.s_addr)))[2],
- (int)(reinterpret_cast<const unsigned char *>(&(reinterpret_cast<const struct sockaddr_in *>(this)->sin_addr.s_addr)))[3],
- (int)Utils::ntoh((uint16_t)(reinterpret_cast<const struct sockaddr_in *>(this)->sin_port))
- );
- return std::string(buf);
- case AF_INET6:
- Utils::snprintf(buf,sizeof(buf),"%.2x%.2x:%.2x%.2x:%.2x%.2x:%.2x%.2x:%.2x%.2x:%.2x%.2x:%.2x%.2x:%.2x%.2x/%d",
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[0]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[1]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[2]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[3]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[4]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[5]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[6]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[7]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[8]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[9]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[10]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[11]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[12]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[13]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[14]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[15]),
- (int)Utils::ntoh((uint16_t)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_port))
- );
- return std::string(buf);
+ char *p = toIpString(buf);
+ if (*p) {
+ while (*p) ++p;
+ *(p++) = '/';
+ Utils::decimal(port(),p);
}
- return std::string();
+ return buf;
}
-std::string InetAddress::toIpString() const
+char *InetAddress::toIpString(char buf[64]) const
{
- char buf[128];
switch(ss_family) {
- case AF_INET:
- Utils::snprintf(buf,sizeof(buf),"%d.%d.%d.%d",
- (int)(reinterpret_cast<const unsigned char *>(&(reinterpret_cast<const struct sockaddr_in *>(this)->sin_addr.s_addr)))[0],
- (int)(reinterpret_cast<const unsigned char *>(&(reinterpret_cast<const struct sockaddr_in *>(this)->sin_addr.s_addr)))[1],
- (int)(reinterpret_cast<const unsigned char *>(&(reinterpret_cast<const struct sockaddr_in *>(this)->sin_addr.s_addr)))[2],
- (int)(reinterpret_cast<const unsigned char *>(&(reinterpret_cast<const struct sockaddr_in *>(this)->sin_addr.s_addr)))[3]
- );
- return std::string(buf);
- case AF_INET6:
- Utils::snprintf(buf,sizeof(buf),"%.2x%.2x:%.2x%.2x:%.2x%.2x:%.2x%.2x:%.2x%.2x:%.2x%.2x:%.2x%.2x:%.2x%.2x",
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[0]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[1]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[2]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[3]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[4]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[5]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[6]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[7]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[8]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[9]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[10]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[11]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[12]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[13]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[14]),
- (int)(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr[15])
- );
- return std::string(buf);
+ case AF_INET: {
+ const uint8_t *a = reinterpret_cast<const uint8_t *>(&(reinterpret_cast<const struct sockaddr_in *>(this)->sin_addr.s_addr));
+ char *p = buf;
+ for(int i=0;;++i) {
+ Utils::decimal((unsigned long)a[i],p);
+ if (i != 3) {
+ while (*p) ++p;
+ *(p++) = '.';
+ } else break;
+ }
+ } break;
+
+ case AF_INET6: {
+ uint16_t a[8];
+ ZT_FAST_MEMCPY(a,reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr,16);
+ char *p = buf;
+ for(int i=0;i<8;++i) {
+ Utils::hex(Utils::ntoh(a[i]),p);
+ p[4] = (i == 7) ? (char)0 : ':';
+ p += 5;
+ }
+ } break;
+
+ default:
+ buf[0] = (char)0;
+ break;
}
- return std::string();
+ return buf;
}
-void InetAddress::fromString(const std::string &ipSlashPort)
+bool InetAddress::fromString(const char *ipSlashPort)
{
- const std::size_t slashAt = ipSlashPort.find('/');
- if (slashAt == std::string::npos) {
- set(ipSlashPort,0);
+ char buf[64];
+
+ memset(this,0,sizeof(InetAddress));
+
+ if (!*ipSlashPort)
+ return true;
+ if (!Utils::scopy(buf,sizeof(buf),ipSlashPort))
+ return false;
+
+ char *portAt = buf;
+ while ((*portAt)&&(*portAt != '/'))
+ ++portAt;
+ unsigned int port = 0;
+ if (*portAt) {
+ *(portAt++) = (char)0;
+ port = Utils::strToUInt(portAt) & 0xffff;
+ }
+
+ if (strchr(buf,':')) {
+ uint16_t a[8];
+ unsigned int b = 0;
+ char *saveptr = (char *)0;
+ for(char *s=Utils::stok(buf,":",&saveptr);((s)&&(b<8));s=Utils::stok((char *)0,":",&saveptr))
+ a[b++] = Utils::hton((uint16_t)(Utils::hexStrToUInt(s) & 0xffff));
+
+ struct sockaddr_in6 *const in6 = reinterpret_cast<struct sockaddr_in6 *>(this);
+ in6->sin6_family = AF_INET6;
+ ZT_FAST_MEMCPY(in6->sin6_addr.s6_addr,a,16);
+ in6->sin6_port = Utils::hton((uint16_t)port);
+
+ return true;
+ } else if (strchr(buf,'.')) {
+ uint8_t a[4];
+ unsigned int b = 0;
+ char *saveptr = (char *)0;
+ for(char *s=Utils::stok(buf,".",&saveptr);((s)&&(b<4));s=Utils::stok((char *)0,".",&saveptr))
+ a[b++] = (uint8_t)(Utils::strToUInt(s) & 0xff);
+
+ struct sockaddr_in *const in = reinterpret_cast<struct sockaddr_in *>(this);
+ in->sin_family = AF_INET;
+ ZT_FAST_MEMCPY(&(in->sin_addr.s_addr),a,4);
+ in->sin_port = Utils::hton((uint16_t)port);
+
+ return true;
} else {
- long p = strtol(ipSlashPort.substr(slashAt+1).c_str(),(char **)0,10);
- if ((p > 0)&&(p <= 0xffff))
- set(ipSlashPort.substr(0,slashAt),(unsigned int)p);
- else set(ipSlashPort.substr(0,slashAt),0);
+ return false;
}
}
@@ -236,15 +231,14 @@ InetAddress InetAddress::netmask() const
case AF_INET6: {
uint64_t nm[2];
const unsigned int bits = netmaskBits();
- if(bits) {
- nm[0] = Utils::hton((uint64_t)((bits >= 64) ? 0xffffffffffffffffULL : (0xffffffffffffffffULL << (64 - bits))));
- nm[1] = Utils::hton((uint64_t)((bits <= 64) ? 0ULL : (0xffffffffffffffffULL << (128 - bits))));
- }
- else {
- nm[0] = 0;
- nm[1] = 0;
- }
- memcpy(reinterpret_cast<struct sockaddr_in6 *>(&r)->sin6_addr.s6_addr,nm,16);
+ if(bits) {
+ nm[0] = Utils::hton((uint64_t)((bits >= 64) ? 0xffffffffffffffffULL : (0xffffffffffffffffULL << (64 - bits))));
+ nm[1] = Utils::hton((uint64_t)((bits <= 64) ? 0ULL : (0xffffffffffffffffULL << (128 - bits))));
+ } else {
+ nm[0] = 0;
+ nm[1] = 0;
+ }
+ ZT_FAST_MEMCPY(reinterpret_cast<struct sockaddr_in6 *>(&r)->sin6_addr.s6_addr,nm,16);
} break;
}
return r;
@@ -270,15 +264,37 @@ InetAddress InetAddress::network() const
case AF_INET6: {
uint64_t nm[2];
const unsigned int bits = netmaskBits();
- memcpy(nm,reinterpret_cast<struct sockaddr_in6 *>(&r)->sin6_addr.s6_addr,16);
+ ZT_FAST_MEMCPY(nm,reinterpret_cast<struct sockaddr_in6 *>(&r)->sin6_addr.s6_addr,16);
nm[0] &= Utils::hton((uint64_t)((bits >= 64) ? 0xffffffffffffffffULL : (0xffffffffffffffffULL << (64 - bits))));
nm[1] &= Utils::hton((uint64_t)((bits <= 64) ? 0ULL : (0xffffffffffffffffULL << (128 - bits))));
- memcpy(reinterpret_cast<struct sockaddr_in6 *>(&r)->sin6_addr.s6_addr,nm,16);
+ ZT_FAST_MEMCPY(reinterpret_cast<struct sockaddr_in6 *>(&r)->sin6_addr.s6_addr,nm,16);
} break;
}
return r;
}
+bool InetAddress::isEqualPrefix(const InetAddress &addr) const
+{
+ if (addr.ss_family == ss_family) {
+ switch(ss_family) {
+ case AF_INET6: {
+ const InetAddress mask(netmask());
+ InetAddress addr_mask(addr.netmask());
+ const uint8_t *n = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(&addr_mask)->sin6_addr.s6_addr);
+ const uint8_t *m = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(&mask)->sin6_addr.s6_addr);
+ const uint8_t *a = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(&addr)->sin6_addr.s6_addr);
+ const uint8_t *b = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr);
+ for(unsigned int i=0;i<16;++i) {
+ if ((a[i] & m[i]) != (b[i] & n[i]))
+ return false;
+ }
+ return true;
+ }
+ }
+ }
+ return false;
+}
+
bool InetAddress::containsAddress(const InetAddress &addr) const
{
if (addr.ss_family == ss_family) {
@@ -306,7 +322,6 @@ bool InetAddress::containsAddress(const InetAddress &addr) const
}
bool InetAddress::isNetwork() const
- throw()
{
switch(ss_family) {
case AF_INET: {
@@ -339,7 +354,6 @@ bool InetAddress::isNetwork() const
}
bool InetAddress::operator==(const InetAddress &a) const
- throw()
{
if (ss_family == a.ss_family) {
switch(ss_family) {
@@ -363,7 +377,6 @@ bool InetAddress::operator==(const InetAddress &a) const
}
bool InetAddress::operator<(const InetAddress &a) const
- throw()
{
if (ss_family < a.ss_family)
return true;
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-03 08:51:13 +0000