def netstat_udp6():
"""
List IPv6 UDP connections.
Return list of processes utilizing IPv6 UDP connections.
All localhost connections are filtered out.
:return: List of connections
"""
udp6_socket_table = load_socket_table(PROC_ENTRY_UDP6)
result = []
for line in udp6_socket_table:
socket_data = line.split()
if not socket_data:
continue
# Convert IPv6 address and port from hex to human readable format
raw_address = socket_data[ProcFileSystem.NET_LOCAL_ADDRESS.value]
local_address, local_port = parse_ipv6_address_port_pair(raw_address)
if local_address.is_loopback:
# Skip all loopback connections
continue
# Extract inode to get PIDs
inode = socket_data[ProcFileSystem.NET_INODE.value]
# Get PIDs from inode
pids = get_pids_from_inode(inode)
for pid in pids:
exe_name = get_exe_name(pid)
my_connection = connection.Connection("udp6", local_address,
local_port, pid, exe_name)
result.append(my_connection)
return result
def netstat_raw():
"""
List raw sockets connections.
Return list of processes utilizing packet sockets.
All localhost connections are filtered out.
:return: List of connections
"""
raw_socket_table = load_socket_table(PROC_ENTRY_PACKET)
result = []
for line in raw_socket_table:
socket_data = line.split()
if not socket_data:
continue
# Extract inode to get PIDs
inode = socket_data[ProcFileSystem.NET_PACKET_INODE.value]
# Get PIDs from inode
pids = get_pids_from_inode(inode)
for pid in pids:
exe_name = get_exe_name(pid)
my_connection = connection.Connection("raw", None, None, pid,
exe_name)
result.append(my_connection)
return result
def netstat_tcp4():
"""
List IPv4 TCP connections.
Return list of processes utilizing IPv4 TCP listening connections.
All localhost connections are filtered out.
:return: List of connections
"""
tcp4_socket_table = load_socket_table(PROC_ENTRY_TCP4)
result = []
for line in tcp4_socket_table:
socket_data = line.split()
if not socket_data:
continue
# Convert IPv4 address and port from hex to human readable format
raw_address = socket_data[ProcFileSystem.NET_LOCAL_ADDRESS.value]
local_address, local_port = parse_ipv4_address_port_pair(raw_address)
if local_address.is_loopback:
# Skip all loopback connections
continue
tcp_state_hex = socket_data[ProcFileSystem.NET_TCP_STATE.value]
tcp_state = TCP_STATES[tcp_state_hex]
if tcp_state != "LISTEN":
# Skip all non-listenning connections
continue
# Extract inode to get PIDs
inode = socket_data[ProcFileSystem.NET_INODE.value]
# Get PIDs from inode
pids = get_pids_from_inode(inode)
for pid in pids:
exe_name = get_exe_name(pid)
my_connection = connection.Connection("tcp4", local_address,
local_port, pid, exe_name)
result.append(my_connection)
return result