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Merge pull request #372 from ghostplant/add_udp 

add UDP4 mapping for iptables
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Yujian Zhu 2019-01-28 16:36:33 +08:00 committed by GitHub
parent 9798dc9db7 3ffa010725
commit 1fbb401862
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 0 deletions
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8
src/utils/nettools.py
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@ -430,6 +430,10 @@ class portcontrol(object):
ports_lock.release()
try:
subprocess.run(['iptables','-t','nat','-A','PREROUTING','-p','tcp','--dport',str(free_port),"-j","DNAT",'--to-destination','%s:%s'%(container_ip,container_port)], stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=False, check=True)
except subprocess.CalledProcessError as suberror:
return [False, "set port mapping failed : %s" % suberror.stdout.decode('utf-8')]
try:
subprocess.run(['iptables','-t','nat','-A','PREROUTING','-p','udp','--dport',str(free_port),"-j","DNAT",'--to-destination','%s:%s'%(container_ip,container_port)], stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=False, check=True)
return [True, str(free_port)]
except subprocess.CalledProcessError as suberror:
return [False, "set port mapping failed : %s" % suberror.stdout.decode('utf-8')]
@ -447,6 +451,10 @@ class portcontrol(object):
subprocess.run(['iptables','-t','nat','-D','PREROUTING','-p','tcp','--dport',str(free_port),"-j","DNAT",'--to-destination','%s:%s'%(container_ip,container_port)], stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=False, check=True)
except subprocess.CalledProcessError as suberror:
return [False, "release port mapping failed : %s" % suberror.stdout.decode('utf-8')]
try:
subprocess.run(['iptables','-t','nat','-D','PREROUTING','-p','udp','--dport',str(free_port),"-j","DNAT",'--to-destination','%s:%s'%(container_ip,container_port)], stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=False, check=True)
except subprocess.CalledProcessError as suberror:
return [False, "release port mapping failed : %s" % suberror.stdout.decode('utf-8')]
ports_lock.acquire()
free_ports[free_port] = True
allocated_ports[container_name].pop(container_port)