Akkariin/proxychains-ng
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Code Issues Releases Wiki Activity

add uv_close hook

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hc 2024-05-22 17:52:59 +02:00
parent 2eb03d3719
commit 65ab050bc2
2 changed files with 41 additions and 0 deletions
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3
src/core.h
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@ -20,6 +20,7 @@
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <uv.h>
#ifndef __CORE_HEADER
#define __CORE_HEADER
@ -151,6 +152,7 @@ void proxychains_write_log(char *str, ...);
typedef int (*close_t)(int);
typedef int (*close_range_t)(unsigned, unsigned, int);
typedef void (*uv_close_t)(uv_handle_t* , uv_close_cb);
typedef int (*connect_t)(int, const struct sockaddr *, socklen_t);
typedef struct hostent* (*gethostbyname_t)(const char *);
typedef int (*freeaddrinfo_t)(struct addrinfo *);
@ -197,6 +199,7 @@ extern getpeername_t true_getpeername;
extern read_t true_read;
extern write_t true_write;
extern close_t true_close;
extern uv_close_t true_uv_close;
struct gethostbyname_data {
struct hostent hostent_space;

38
src/libproxychains.c
View File

@ -37,6 +37,7 @@
#include <pthread.h>
#include <sys/stat.h>
#include <uv.h>
@ -63,6 +64,7 @@ connect_t true___xnet_connect;
close_t true_close;
close_range_t true_close_range;
uv_close_t true_uv_close;
connect_t true_connect;
gethostbyname_t true_gethostbyname;
getaddrinfo_t true_getaddrinfo;
@ -647,6 +649,41 @@ HOOKFUNC(int, close, int fd) {
return -1;
}
HOOKFUNC(void, uv_close, uv_handle_t* handle, uv_close_cb close_cb){
PFUNC();
switch (handle->type)
{
case UV_UDP:
int fd = ((uv_udp_t*)handle)->io_watcher.fd;
/***** UDP STUFF *******/
//PDEBUG("checking if a relay chain is opened for fd %d\n", fd);
udp_relay_chain* relay_chain = NULL;
PDEBUG("waiting for mutex\n");
MUTEX_LOCK(&relay_chains_mutex);
PDEBUG("got mutex\n");
relay_chain = get_relay_chain(relay_chains, fd);
if(NULL != relay_chain){
PDEBUG("fd %d corresponds to chain %x, closing it\n", fd, relay_chain);
free_relay_chain_contents(relay_chain);
del_relay_chain(&relay_chains, relay_chain);
PDEBUG("chain %x corresponding to fd %d closed\n", relay_chain, fd);
DUMP_RELAY_CHAINS_LIST(relay_chains);
}
MUTEX_UNLOCK(&relay_chains_mutex);
/***** END UDP STUFF *******/
break;
default:
break;
}
return true_uv_close(handle, close_cb);
}
static int is_v4inv6(const struct in6_addr *a) {
return !memcmp(a->s6_addr, "\0\0\0\0\0\0\0\0\0\0\xff\xff", 12);
}
@ -2240,6 +2277,7 @@ static void setup_hooks(void) {
#endif
SETUP_SYM(close);
SETUP_SYM_OPTIONAL(close_range);
SETUP_SYM_OPTIONAL(uv_close);
}
#ifdef MONTEREY_HOOKING