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Code Issues Releases Wiki Activity

removed receive_udp_packet()

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hugoc
2024-01-17 12:48:20 +01:00
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parent 120cfe96be
commit 44c4352d72
2 changed files with 63 additions and 67 deletions
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src/core.c
-42
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@@ -847,48 +847,6 @@ int unsocksify_udp_packet(void* in_buffer, size_t in_buffer_len, udp_relay_chain
return 0;
}
int receive_udp_packet(int sockfd, udp_relay_chain chain, ip_type* src_ip, unsigned short* src_port, char* data, unsigned int data_len ){
//receives data on sockfd, decapsulates the header for each relay in chain and check they match, returns UDP data and source address/port
PFUNC();
char buffer[65535]; //buffer to receive and decapsulate a UDP relay packet. UDP maxsize is 65535
int bytes_received;
struct sockaddr from;
socklen_t addrlen = sizeof(from);
PDEBUG("test\n");
bytes_received = true_recvfrom(sockfd, buffer,sizeof(buffer), 0, &from, &addrlen);
if(-1 == bytes_received){
PDEBUG("true_receive returned -1\n");
return -1;
}
PDEBUG("successful recvfrom(), %d bytes received\n", bytes_received);
//Check that the packet was received from the first relay of the chain
// i.e. does from == chain.head.bnd_addr ?
if(!is_from_chain_head(chain, from)){
PDEBUG("UDP packet not received from the proxy chain's head, transfering it as is\n");
int min = (bytes_received <= data_len)?bytes_received:data_len;
//TODO : il faut aussi transmettre les adresses et ports qu ón a recu a l'appli qui a fait le call !!!!!
memcpy(data, buffer, min);
return min;
}
PDEBUG("packet received from the proxy chain's head\n");
int rc;
size_t udp_data_len = data_len;
rc = unsocksify_udp_packet(buffer, bytes_received, chain, src_ip, src_port, data, &udp_data_len);
if(rc != SUCCESS){
PDEBUG("error unSOCKSing the UDP packet\n");
return -1;
}
PDEBUG("UDP packet successfully unSOCKified\n");
return udp_data_len;
}
int encapsulate_udp_packet(udp_relay_chain chain, socks5_addr dst_addr, unsigned short dst_port, void* buffer, size_t* buffer_len){