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Xray with Reality protocol (#494)

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* Xray with Reality for desktops
This commit is contained in:
Mykola Baibuz 2024-03-27 11:02:34 +00:00 • committed by GitHub
parent f6acec53c0
commit ba4237f1dd
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GPG key ID: B5690EEEBB952194
64 changed files with 1933 additions and 336 deletions
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120
client/platforms/linux/daemon/linuxroutemonitor.cpp
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@ -19,8 +19,10 @@
#include <sys/ioctl.h>
#include <sys/socket.h>
#include "../utilities.h"
#include "leakdetector.h"
#include "logger.h"
#include "core/networkUtilities.h"
namespace {
Logger logger("LinuxRouteMonitor");
@ -163,7 +165,7 @@ bool LinuxRouteMonitor::rtmSendRoute(int action, int flags, int type,
if (rtm->rtm_type == RTN_THROW) {
struct in_addr ip4;
inet_pton(AF_INET, getgatewayandiface().toUtf8(), &ip4);
inet_pton(AF_INET, NetworkUtilities::getGatewayAndIface().toUtf8(), &ip4);
nlmsg_append_attr(nlmsg, sizeof(buf), RTA_GATEWAY, &ip4, sizeof(ip4));
nlmsg_append_attr32(nlmsg, sizeof(buf), RTA_PRIORITY, 0);
rtm->rtm_type = RTN_UNICAST;
@ -221,122 +223,6 @@ void LinuxRouteMonitor::nlsockReady() {
}
}
#define BUFFER_SIZE 4096
QString LinuxRouteMonitor::getgatewayandiface()
{
int received_bytes = 0, msg_len = 0, route_attribute_len = 0;
int sock = -1, msgseq = 0;
struct nlmsghdr *nlh, *nlmsg;
struct rtmsg *route_entry;
// This struct contain route attributes (route type)
struct rtattr *route_attribute;
char gateway_address[INET_ADDRSTRLEN], interface[IF_NAMESIZE];
char msgbuf[BUFFER_SIZE], buffer[BUFFER_SIZE];
char *ptr = buffer;
struct timeval tv;
if ((sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)) < 0) {
perror("socket failed");
return "";
}
memset(msgbuf, 0, sizeof(msgbuf));
memset(gateway_address, 0, sizeof(gateway_address));
memset(interface, 0, sizeof(interface));
memset(buffer, 0, sizeof(buffer));
/* point the header and the msg structure pointers into the buffer */
nlmsg = (struct nlmsghdr *)msgbuf;
/* Fill in the nlmsg header*/
nlmsg->nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
nlmsg->nlmsg_type = RTM_GETROUTE; // Get the routes from kernel routing table .
nlmsg->nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST; // The message is a request for dump.
nlmsg->nlmsg_seq = msgseq++; // Sequence of the message packet.
nlmsg->nlmsg_pid = getpid(); // PID of process sending the request.
/* 1 Sec Timeout to avoid stall */
tv.tv_sec = 1;
setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (struct timeval *)&tv, sizeof(struct timeval));
/* send msg */
if (send(sock, nlmsg, nlmsg->nlmsg_len, 0) < 0) {
perror("send failed");
return "";
}
/* receive response */
do
{
received_bytes = recv(sock, ptr, sizeof(buffer) - msg_len, 0);
if (received_bytes < 0) {
perror("Error in recv");
return "";
}
nlh = (struct nlmsghdr *) ptr;
/* Check if the header is valid */
if((NLMSG_OK(nlmsg, received_bytes) == 0) ||
(nlmsg->nlmsg_type == NLMSG_ERROR))
{
perror("Error in received packet");
return "";
}
/* If we received all data break */
if (nlh->nlmsg_type == NLMSG_DONE)
break;
else {
ptr += received_bytes;
msg_len += received_bytes;
}
/* Break if its not a multi part message */
if ((nlmsg->nlmsg_flags & NLM_F_MULTI) == 0)
break;
}
while ((nlmsg->nlmsg_seq != msgseq) || (nlmsg->nlmsg_pid != getpid()));
/* parse response */
for ( ; NLMSG_OK(nlh, received_bytes); nlh = NLMSG_NEXT(nlh, received_bytes))
{
/* Get the route data */
route_entry = (struct rtmsg *) NLMSG_DATA(nlh);
/* We are just interested in main routing table */
if (route_entry->rtm_table != RT_TABLE_MAIN)
continue;
route_attribute = (struct rtattr *) RTM_RTA(route_entry);
route_attribute_len = RTM_PAYLOAD(nlh);
/* Loop through all attributes */
for ( ; RTA_OK(route_attribute, route_attribute_len);
route_attribute = RTA_NEXT(route_attribute, route_attribute_len))
{
switch(route_attribute->rta_type) {
case RTA_OIF:
if_indextoname(*(int *)RTA_DATA(route_attribute), interface);
break;
case RTA_GATEWAY:
inet_ntop(AF_INET, RTA_DATA(route_attribute),
gateway_address, sizeof(gateway_address));
break;
default:
break;
}
}
if ((*gateway_address) && (*interface)) {
logger.debug() << "Gateway " << gateway_address << " for interface " << interface;
break;
}
}
close(sock);
return gateway_address;
}
static bool buildAllowedIp(wg_allowedip* ip,
const IPAddress& prefix) {
const char* addrString = qPrintable(prefix.address().toString());