Change-Id: I5da20a12f801264821890e6516899344456576a8
Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>
def recv_pkt(self, timeout=3):
return self.rxq.recv(timeout, self.sent_packets)
def recv_pkt(self, timeout=3):
return self.rxq.recv(timeout, self.sent_packets)
- def close(self):
- #self.rxq._proc.terminate()
- pass
-
def create_gratuitous_arp_request(src_mac, src_ip):
"""Creates scapy representation of gratuitous ARP request"""
def create_gratuitous_arp_request(src_mac, src_ip):
"""Creates scapy representation of gratuitous ARP request"""
| | ${args}= | Traffic Script Gen Arg | ${to_port} | ${from_port} | ${src_mac}
| | | ... | ${dst_mac} | ${src_ip} | ${dst_ip}
| | ${args}= | Catenate | ${args} | --hops ${hops} | --first_hop_mac ${adj_int['mac_address']}
| | ${args}= | Traffic Script Gen Arg | ${to_port} | ${from_port} | ${src_mac}
| | | ... | ${dst_mac} | ${src_ip} | ${dst_ip}
| | ${args}= | Catenate | ${args} | --hops ${hops} | --first_hop_mac ${adj_int['mac_address']}
-| | | ... | --is_dst_defined ${is_dst_tg}
+| | | ... | --is_dst_tg ${is_dst_tg}
| | Run Traffic Script On Node | ipv4_ping_ttl_check.py | ${from_node} | ${args}
| Ipv4 icmp echo sweep
| | Run Traffic Script On Node | ipv4_ping_ttl_check.py | ${from_node} | ${args}
| Ipv4 icmp echo sweep
except RuntimeError as ex:
print 'Error occurred: {}'.format(ex)
except RuntimeError as ex:
print 'Error occurred: {}'.format(ex)
- finally:
- interface.close()
def check_ttl(ttl_begin, ttl_end, ttl_diff):
if ttl_begin != ttl_end + ttl_diff:
def check_ttl(ttl_begin, ttl_end, ttl_diff):
if ttl_begin != ttl_end + ttl_diff:
- src_if.close()
- if dst_if_defined:
- dst_if.close()
raise Exception(
"TTL changed from {} to {} but decrease by {} expected"
.format(ttl_begin, ttl_end, hops))
raise Exception(
"TTL changed from {} to {} but decrease by {} expected"
.format(ttl_begin, ttl_end, hops))
Ether(pkt_send_raw).show2()
print "Received:"
Ether(pkt_recv_raw).show2()
Ether(pkt_send_raw).show2()
print "Received:"
Ether(pkt_recv_raw).show2()
- src_if.close()
- if dst_if_defined:
- dst_if.close()
raise Exception("Sent packet doesn't match received packet")
args = TrafficScriptArg(['src_mac', 'dst_mac', 'src_ip', 'dst_ip',
raise Exception("Sent packet doesn't match received packet")
args = TrafficScriptArg(['src_mac', 'dst_mac', 'src_ip', 'dst_ip',
- 'hops', 'first_hop_mac', 'is_dst_defined'])
+ 'hops', 'first_hop_mac', 'is_dst_tg'])
src_if_name = args.get_arg('tx_if')
dst_if_name = args.get_arg('rx_if')
src_if_name = args.get_arg('tx_if')
dst_if_name = args.get_arg('rx_if')
-dst_if_defined = True if args.get_arg('is_dst_defined') == 'True' else False
+is_dst_tg = True if args.get_arg('is_dst_tg') == 'True' else False
src_mac = args.get_arg('src_mac')
first_hop_mac = args.get_arg('first_hop_mac')
src_mac = args.get_arg('src_mac')
first_hop_mac = args.get_arg('first_hop_mac')
dst_ip = args.get_arg('dst_ip')
hops = int(args.get_arg('hops'))
dst_ip = args.get_arg('dst_ip')
hops = int(args.get_arg('hops'))
-if dst_if_defined and (src_if_name == dst_if_name):
+if is_dst_tg and (src_if_name == dst_if_name):
raise Exception("Source interface name equals destination interface name")
src_if = Interface(src_if_name)
src_if.send_pkt(str(create_gratuitous_arp_request(src_mac, src_ip)))
raise Exception("Source interface name equals destination interface name")
src_if = Interface(src_if_name)
src_if.send_pkt(str(create_gratuitous_arp_request(src_mac, src_ip)))
dst_if = Interface(dst_if_name)
dst_if.send_pkt(str(create_gratuitous_arp_request(dst_mac, dst_ip)))
dst_if = Interface(dst_if_name)
dst_if.send_pkt(str(create_gratuitous_arp_request(dst_mac, dst_ip)))
ICMP())
src_if.send_pkt(pkt_req_send)
ICMP())
src_if.send_pkt(pkt_req_send)
-if dst_if_defined:
- try:
- pkt_req_recv = dst_if.recv_pkt()
- if pkt_req_recv is None:
- raise Exception('Timeout waiting for packet')
- except:
- src_if.close()
- if dst_if_defined:
- dst_if.close()
- raise
+if is_dst_tg:
+ pkt_req_recv = dst_if.recv_pkt()
+ if pkt_req_recv is None:
+ raise Exception('Timeout waiting for packet')
check_ttl(pkt_req_send[IP].ttl, pkt_req_recv[IP].ttl, hops)
pkt_req_send_mod = pkt_req_send.copy()
check_ttl(pkt_req_send[IP].ttl, pkt_req_recv[IP].ttl, hops)
pkt_req_send_mod = pkt_req_send.copy()
ICMP(type=0)) # echo-reply
dst_if.send_pkt(pkt_resp_send)
ICMP(type=0)) # echo-reply
dst_if.send_pkt(pkt_resp_send)
-try:
- pkt_resp_recv = src_if.recv_pkt()
- if pkt_resp_recv is None:
- raise Exception('Timeout waiting for packet')
-except:
- src_if.close()
- if dst_if_defined:
- dst_if.close()
- raise
+pkt_resp_recv = src_if.recv_pkt()
+if pkt_resp_recv is None:
+ raise Exception('Timeout waiting for packet')
check_ttl(pkt_resp_send[IP].ttl, pkt_resp_recv[IP].ttl, hops)
pkt_resp_send_mod = pkt_resp_send.copy()
pkt_resp_send_mod[IP].ttl = pkt_resp_recv[IP].ttl
del pkt_resp_send_mod[IP].chksum # update checksum
ckeck_packets_equal(pkt_resp_send_mod[IP], pkt_resp_recv[IP])
check_ttl(pkt_resp_send[IP].ttl, pkt_resp_recv[IP].ttl, hops)
pkt_resp_send_mod = pkt_resp_send.copy()
pkt_resp_send_mod[IP].ttl = pkt_resp_recv[IP].ttl
del pkt_resp_send_mod[IP].chksum # update checksum
ckeck_packets_equal(pkt_resp_send_mod[IP], pkt_resp_recv[IP])
-
-src_if.close()
-if dst_if_defined:
- dst_if.close()