def print_fib(fib):
trie = fib.tb_data
print(fib)
trie = Object(prog, 'struct trie', address=trie)
print(trie)
kv = trie.kv
print(kv)
print("key_vector %lx" % kv.address_of_())
print("key_vector %lx" % kv[0].tnode[0].value_())
print(type(kv))
for i in range(32):
if IS_TRIE(kv[i]):
print("kv[%d] is TRIE" % i)
if IS_TNODE(kv[i]):
print("kv[%d] is TNODE" % i)
print(kv[i])
print("key[%d]: %x, ip: %s" %
(i, kv[i].key, lib.ipv4(socket.ntohl(kv[i].key.value_()))))
break
if IS_LEAF(kv[i]):
print("kv[%d] is LEAF" % i)
for n in hlist_for_each_entry('struct fib_alias', leaf.address_of_(),
'fa_list'):
print(n)
def print_flow_key(key):
# MAC_PROTO_ETHERNET = 1
# mac_proto = key.mac_proto
# print(mac_proto)
print_eth(key.eth)
proto = key.ip.proto.value_()
print("proto: %d, src: %s" %
(proto, lib.ipv4(socket.ntohl(key.ipv4.addr.src.value_()))))
tp_dst = key.tp.dst
print("tp_dst: %d" % socket.ntohs(tp_dst))
def print_nh(nh):
fib_info = nh.nh_parent
name = nh.nh_dev.name.string_().decode()
fib_type = nh.nh_parent.fib_type.value_()
fib_scope = nh.nh_scope.value_()
# if fib_scope == prog['RT_SCOPE_NOWHERE'].value_():
# return
# if fib_type == broadcast.value_():
# return
# if name != "br" and name != "enp4s0f0":
# return
# print("fib_nh %lx" % nh)
print("name: %10s" % name, end='')
print(" saddr: %15s" % lib.ipv4(socket.ntohl(nh.nh_saddr.value_())), end='')
print(" gw: %15s" % lib.ipv4(socket.ntohl(nh.nh_gw.value_())), end='')
print(" weight: %4d" % nh.nh_weight.value_(), end='')
print(" scope: %4d" % nh.nh_scope.value_(), end='')
print(" flags: %4x" % nh.nh_flags.value_(), end='')
print(" fib_info %lx" % nh.nh_parent.value_(), end='')
print(" fib_type %x" % nh.nh_parent.fib_type, end='')
print('')
#!/usr/local/bin/drgn -k
from drgn.helpers.linux import *
from drgn import Object
import time
import socket
import sys
import os
libpath = os.path.dirname(os.path.realpath("__file__"))
sys.path.append(libpath)
import lib
inet_addr_list = prog['inet_addr_lst']
size = 128
for i in range(size):
for ip in hlist_for_each_entry('struct in_ifaddr',
inet_addr_list[i].address_of_(), 'hash'):
print("ifa_address: %15s, ifa_label: %10s, ifa_dev.dev: %lx" % \
(lib.ipv4(socket.ntohl(ip.ifa_address.value_())), ip.ifa_label.string_().decode(), ip.ifa_dev.dev))
def print_match(fte):
print("fs_fte %lx" % fte.address_of_().value_())
val = fte.val
# print(val)
# smac = str(socket.ntohl(hex(val[0])))
print("%8x: " % fte.index.value_(), end='')
smac_47_16 = socket.ntohl(val[0].value_())
smac_15_0 = socket.ntohl(val[1].value_() & 0xffff)
smac_47_16 <<= 16
smac_15_0 >>= 16
smac = smac_47_16 | smac_15_0
print(" s: ", end='')
print_mac(smac)
dmac_47_16 = socket.ntohl(val[2].value_())
dmac_15_0 = socket.ntohl(val[3].value_() & 0xffff)
dmac_47_16 <<= 16
dmac_15_0 >>= 16
dmac = dmac_47_16 | dmac_15_0
print(" d: ", end='')
print_mac(dmac)
ethertype = socket.ntohl(val[1].value_() & 0xffff0000)
if ethertype:
print(" et: %x" % ethertype, end='')
# vport = socket.ntohl(val[17].value_() & 0xffff0000)
# metadata_reg_c_0
vport = socket.ntohl(val[59].value_() & 0xffff0000)
if vport:
print(" vport: %-2d" % vport, end='')
ip_protocol = val[4].value_() & 0xff
if ip_protocol:
print(" ip: %-2d" % ip_protocol, end='')
tos = (val[4].value_() & 0xff00) >> 8
if tos:
print(" tos: %-2x(dscp: %x)" % (tos, tos >> 2), end='')
tcp_flags = (val[4].value_() & 0xff000000) >> 24
if tcp_flags:
print(" tflags: %2x" % tcp_flags, end='')
ip_version = (val[4].value_() & 0xff0000) >> 17
if ip_version:
print(" ipv: %-2x" % ip_version, end='')
tcp_sport = socket.ntohs(val[5].value_() & 0xffff)
if tcp_sport:
print(" sport: %5d" % tcp_sport, end='')
tcp_dport = socket.ntohs(val[5].value_() >> 16 & 0xffff)
if tcp_dport:
print(" dport: %6d" % tcp_dport, end='')
udp_sport = socket.ntohs(val[7].value_() & 0xffff)
if udp_sport:
print(" sport: %6d" % udp_sport, end='')
udp_dport = socket.ntohs(val[7].value_() >> 16 & 0xffff)
if udp_dport:
print(" dport: %6d" % udp_dport, end='')
src_ip = socket.ntohl(val[11].value_())
if src_ip:
print(" src_ip: %12s" % lib.ipv4(src_ip), end='')
dst_ip = socket.ntohl(val[15].value_())
if src_ip:
print(" dst_ip: %12s" % lib.ipv4(dst_ip), end='')
vni = socket.ntohl(val[21].value_() & 0xffffff) >> 8
if vni:
print(" vni: %6d" % vni, end='')
source_sqn = socket.ntohl(val[16].value_() & 0xffffff00)
if source_sqn:
print(" source_sqn: %6x" % source_sqn, end='')
if vni:
smac_47_16 = socket.ntohl(val[32].value_())
smac_15_0 = socket.ntohl(val[33].value_() & 0xffff)
smac_47_16 <<= 16
smac_15_0 >>= 16
smac = smac_47_16 | smac_15_0
print("\n s: ", end='')
print_mac(smac)
dmac_47_16 = socket.ntohl(val[34].value_())
dmac_15_0 = socket.ntohl(val[35].value_() & 0xffff)
dmac_47_16 <<= 16
dmac_15_0 >>= 16
dmac = dmac_47_16 | dmac_15_0
print(" d: ", end='')
print_mac(dmac)
ethertype = socket.ntohl(val[33].value_() & 0xffff0000)
print(" et: %x" % ethertype, end='')
ip_protocol = val[36].value_() & 0xff
if ip_protocol:
print(" ip: %-2d" % ip_protocol, end='')
tos = (val[4].value_() & 0xff00) >> 8
if tos:
print(" tos: %-2x(dscp: %x)" % (tos, tos >> 2), end='')
tcp_flags = (val[36].value_() & 0xff000000) >> 24
if tcp_flags:
print(" tflags: %2x" % tcp_flags, end='')
ip_version = (val[36].value_() & 0xff0000) >> 17
if ip_version:
print(" ipv: %-2x" % ip_version, end='')
tcp_sport = socket.ntohs(val[37].value_() & 0xffff)
if tcp_sport:
print(" sport: %5d" % tcp_sport, end='')
tcp_dport = socket.ntohs(val[37].value_() >> 16 & 0xffff)
if tcp_dport:
print(" dport: %6d" % tcp_dport, end='')
udp_sport = socket.ntohs(val[39].value_() & 0xffff)
if udp_sport:
print(" sport: %6d" % udp_sport, end='')
udp_dport = socket.ntohs(val[39].value_() >> 16 & 0xffff)
if udp_dport:
print(" dport: %6d" % udp_dport, end='')
src_ip = socket.ntohl(val[43].value_())
if src_ip:
print(" src_ip: %12s" % lib.ipv4(src_ip), end='')
dst_ip = socket.ntohl(val[47].value_())
if src_ip:
print(" dst_ip: %12s" % lib.ipv4(dst_ip), end='')
print(" action %4x: " % fte.action.action.value_())