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Merge pull request #8643

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faaf2af p2p: fix exclusive node DNS resolution for certain hosts (Jeffrey Ryan)
This commit is contained in:
luigi1111
2023-01-11 11:39:42 -05:00
parent ac8580c1f5 faaf2af43b
commit b363eebd52
4 changed files with 55 additions and 14 deletions
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src/net/parse.cpp
+7 -1
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@@ -38,7 +38,7 @@ namespace net
{
void get_network_address_host_and_port(const std::string& address, std::string& host, std::string& port)
{
// require ipv6 address format "[addr:addr:addr:...:addr]:port"
// If IPv6 address format with port "[addr:addr:addr:...:addr]:port"
if (address.find(']') != std::string::npos)
{
host = address.substr(1, address.rfind(']') - 1);
@@ -47,6 +47,12 @@ namespace net
port = address.substr(address.rfind(':') + 1);
}
}
// Else if IPv6 address format without port e.g. "addr:addr:addr:...:addr"
else if (std::count(address.begin(), address.end(), ':') >= 2)
{
host = address;
}
// Else IPv4, Tor, I2P address or hostname
else
{
host = address.substr(0, address.rfind(':'));
src/net/parse.h
+10
View File
@@ -38,6 +38,16 @@
namespace net
{
/*!
* \brief Takes a valid address string (IP, Tor, I2P, or DNS name) and splits it into host and port
*
* The host of an IPv6 addresses in the format "[x:x:..:x]:port" will have the braces stripped.
* For example, when the address is "[ffff::2023]", host will be set to "ffff::2023".
*
* \param address The address string one wants to split
* \param[out] host The host part of the address string. Is always set.
* \param[out] port The port part of the address string. Is only set when address string contains a port.
*/
void get_network_address_host_and_port(const std::string& address, std::string& host, std::string& port);
/*!
src/p2p/net_node.inl
+3 -13
View File
@@ -645,20 +645,10 @@ namespace nodetool
{
using namespace boost::asio;
std::string host = addr;
// Split addr string into host string and port string
std::string host;
std::string port = std::to_string(default_port);
size_t colon_pos = addr.find_last_of(':');
size_t dot_pos = addr.find_last_of('.');
size_t square_brace_pos = addr.find('[');
// IPv6 will have colons regardless. IPv6 and IPv4 address:port will have a colon but also either a . or a [
// as IPv6 addresses specified as address:port are to be specified as "[addr:addr:...:addr]:port"
// One may also specify an IPv6 address as simply "[addr:addr:...:addr]" without the port; in that case
// the square braces will be stripped here.
if ((std::string::npos != colon_pos && std::string::npos != dot_pos) || std::string::npos != square_brace_pos)
{
net::get_network_address_host_and_port(addr, host, port);
}
net::get_network_address_host_and_port(addr, host, port);
MINFO("Resolving node address: host=" << host << ", port=" << port);
io_service io_srv;