2 node connect direct test

re6st/tests/test_network/my_net.py

 import subprocess 
 import time
+import random
+import weakref
+import sys
 
+class NetManager(object):
+    """contain all the nemu object created, so they can live more time"""
+    def __init__(self):
+        self.object = []
+        self.registrys = {}
 
+class Device(object):
 
-app1 = subprocess.Popen(['unshare', '-n'], stdin=subprocess.PIPE)
-app2 = subprocess.Popen(['unshare', '-n'], stdin=subprocess.PIPE)
+    _id = 0
 
-print("pid, 1:{}, 2:{}".format(app1.pid, app2.pid))
-subprocess.check_call(['ip', 'link', 'add', 'veth0', 'netns', str(app1.pid) ,'type', 'veth', 'peer', 'veth1', 'netns', str(app2.pid)])
+    @classmethod
+    def get_id(cls):
+        cls._id += 1
+        return cls._id
 
-subprocess.check_call(['nsenter', '-t', str(app1.pid), '-n'] + ['ip', 'link', 'set', 'up', 'veth0'])
+    def __init__(self, type, name=None):
+        """
+        type: device type, str
+        name: device name, str. if not set, generate one name
+        """
+        # name if name else .....
+        self.type = type
+        self.name =  name or "{}-{}".format(type, self.get_id())
+        self.ips = []
+        self._up = False
 
-subprocess.check_call(['nsenter', '-t', str(app2.pid), '-n'] + ['ip', 'link', 'set', 'up', 'veth1'])
-subprocess.check_call(['nsenter', '-t', str(app1.pid), '-n'] + ['ip', 'addr', 'add', 'dev', 'veth0', '10.1.1.1/24'])
-subprocess.check_call(['nsenter', '-t', str(app2.pid), '-n'] +  ['ip', 'addr', 'add', 'dev', 'veth1', '10.1.1.2/24'])
-# subprocess.check_call(['nsenter', '-t', str(app1.pid), '-n','ip', 'route', 'add', '10.1.1.0/24', 'via', '10.1.1.1'])
-# subprocess.check_call(['ip', 'route', 'add', '10.1.1.0/24', 'via', '10.1.1.2'])
-subprocess.check_call(['nsenter', '-t', str(app2.pid), '-n'] + ["ping", "10.1.1.1"])
+    @property
+    def up(self):
+        "bool value control device up or not"
+        return self._up
 
-print("good bye!")
+    @up.setter
\ No newline at end of file
+    def up(self, value):
+        value = "up" if value else "down"
+        self.net.run(['ip', 'link', 'set', 'up', self.name])
+
+    def add_ip4(self, address, prefix):
+        ip = "{}/{}".format(address, prefix)
+        self.ips.append(address)
+        self.net.run(['ip', 'addr', 'add', ip, 'dev', self.name])
+
+
+class Netns(object):
+    """a network namespace"""
+    def __init__(self):
+        self.devices = []
+        self.app = subprocess.Popen(['unshare', '-n'], stdin=subprocess.PIPE)
+        self.pid = self.app.pid
+
+        lo = Device("lo", name="lo")
+        self.add_device(lo)
+        lo.up = True
+
+        self.run(['sysctl', '-w', 'net.ipv4.ip_forward=1'])
+        self.run(['sysctl', '-w', 'net.ipv6.conf.default.forwarding=1'], stderr=sys.stderr)
+        
+    
+    def Popen(self, cmd, stdout=sys.stdout, stderr=sys.stderr,**kw):
+        """ a wrapper for subprocess.Popen"""
+        return subprocess.Popen(['nsenter', '-t', str(self.pid), '-n'] + cmd, stdout=stdout, stderr=stderr, **kw)
+
+
+    def run(self, cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE,**kw):
+        """ wrapper for subprocess.checkout"""
+        subprocess.check_call(['nsenter', '-t', str(self.pid), '-n'] + cmd, stdout=stdout, stderr=stderr, **kw)
+
+
+
+    def add_device(self, dev):
+        self.devices.append(dev)
+        dev.net = weakref.proxy(self)
+
+    @staticmethod
+    def connect_direct(node1, node2):
+        """connect 2 node by veth"""
+        dev1 = Device("veth")
+        dev2 = Device("veth")
+        node1.add_device(dev1)
+        node2.add_device(dev2)
+        subprocess.check_call(['ip', 'link', 'add', dev1.name, 'netns', str(node1.pid) ,'type', 'veth', 'peer', dev2.name, 'netns', str(node2.pid)])
+        dev1.add_ip4("10.1.1.1", prefix=24)
+        dev2.add_ip4("10.1.1.2", prefix=24)
+        dev1.up = dev2.up = True
+
+    @property
+    def ip(self):
+        return self.out.ips[-1]
+
+    @property
+    def out(self):
+        return self.devices[-1]
+
+
+def main():
+    app1 = Netns()
+    app2 = Netns()
+    print("pid, 1:{}, 2:{}".format(app1.pid, app2.pid))
+    Netns.connect_direct(app1, app2)
+    
+    
+ 
+    # subprocess.check_call(['nsenter', '-t', str(app1.pid), '-n','ip', 'route', 'add', '10.1.1.0/24', 'via', '10.1.1.1'])
+    # subprocess.check_call(['ip', 'route', 'add', '10.1.1.0/24', 'via', '10.1.1.2'])
+    subprocess.check_call(['nsenter', '-t', str(app2.pid), '-n'] + ["ping", "10.1.1.1"])
+
+
+    
+
+def net_simple():
+    nm = NetManager()
+    node1 = Netns()
+    node2 = Netns()
+    Netns.connect_direct(node1, node2)
+
+    # subprocess.check_call(['nsenter', '-t', str(node2.pid), '-n'] + ["ping",  '-c', '1', "10.1.1.1"])
+    nm.registrys[node1] = [node2]
+    return nm
+
+
+if __name__ == "__main__":
+    main()
+    print("good bye!")

re6st/tests/test_network/re6st_wrap.py

@@ -16,7 +16,8 @@ WORK_DIR = Path(__file__).parent.resolve() / "temp_net_test"
 DH_FILE = WORK_DIR / "dh2048.pem"
 
 RE6STNET = "re6stnet"
-RE6ST_REGISTRY = "re6st-registry"
+#RE6ST_REGISTRY = "re6st-registry"
+RE6ST_REGISTRY = "python -m re6st.cli.registry"
 RE6ST_CONF = "re6st-conf"
 
 def initial():
@@ -67,6 +68,10 @@ class Re6stRegistry(object):
 
         self.run()
 
+        # wait the servcice started
+        while(not self.log.exists()):
+            time.sleep(0.1)
+
     @classmethod
     def generate_name(cls):
         cls.registry_seq += 1
@@ -94,6 +99,12 @@ class Re6stRegistry(object):
         self.proc = self.node.Popen(cmd, stdout=PIPE, stderr=PIPE)
 
 
+    def __del__(self):
+        try:
+            self.proc.terminate()
+        except:
+            pass
+
 class Re6stNode(object):
     """class run a re6stnet service on a namespace"""
     node_seq = -1
@@ -149,7 +160,7 @@ class Re6stNode(object):
 
     def create_node(self):
         """create necessary file for node"""
-        sys.stderr.write("create file for node {}".format(self.name))
+        sys.stderr.write("---create file for node {}---\n".format(self.name))
         cmd = "{script} --registry {registry_url} --email {email}"
         cmd = cmd.format(script=RE6ST_CONF, registry_url=self.registry.url,
                          email=self.email).split()
@@ -186,3 +197,9 @@ class Re6stNode(object):
                          console=self.console).split()
         cmd += args
         self.proc = self.node.Popen(cmd, stdout=PIPE, stderr=PIPE)
+
+    def __del__(self):
+        try:
+            self.proc.terminate()
+        except:
+            pass

re6st/tests/test_network/test_ping.py

@@ -7,9 +7,9 @@ import sys
 import os
 
 from pathlib2 import Path
-from network_build import *
+import my_net
 
-PING_PATH = Path(__file__).parent.resolve() / "ping.py"
+PING_PATH = str(Path(__file__).parent.resolve() / "ping.py")
 
 def wait_stable(nodes, timeout=180):
     sys.stderr.write("wait stalbe\n")
@@ -19,7 +19,7 @@ def wait_stable(nodes, timeout=180):
     for node in nodes:
         sub_ips = set(ips) - {node.ip6}
         node.ping_proc = node.node.Popen(
-            "python {} --retry -a {} ".format(PING_PATH, ' '.join(sub_ips)),shell=True)
+            ["python", PING_PATH, '--retry', '-a'] + list(sub_ips))
     unfinished = list(nodes)
     # check all the node network can ping each other
     while len(unfinished):
@@ -41,8 +41,7 @@ def ping_test(nodes):
     for node in nodes:
         sub_ips = set(ips) - {node.ip6}
         node.ping_proc = node.node.Popen(
-            "python {} -a {} ".format(PING_PATH, ' '.join(sub_ips)),
-            shell=True, stdout=subprocess.PIPE)
+            ["python", PING_PATH, '--retry', '-a'] + list(sub_ips), stdout=subprocess.PIPE)
         out, _ = node.ping_proc.communicate()
         unreached = [ ips[addr] for addr in out.split()]
         if unreached:
@@ -78,19 +77,20 @@ class TestPing(unittest.TestCase):
         """create a network demo, test the connectivity by ping
         wait the network stable then ping 3 times
         """
-        nm = network_direct()
+        nm =  my_net.net_simple()
         net = nm.registrys
         nodes = []
         registrys = []
         for registry in net:
-            reg = re6st_wrap.Re6stRegistry(registry, "2001:db8:42::", recreate=False)
+            reg = re6st_wrap.Re6stRegistry(registry, "2001:db8:42::", recreate=True)
             reg_node = re6st_wrap.Re6stNode(registry, reg, name=reg.name)
             registrys.append(registry)
             reg_node.run("--gateway", "--disable-proto", "none", "--ip", registry.ip)
             nodes.append(reg_node)
             for m in net[registry]:
+                print("add nodes")
                 node = re6st_wrap.Re6stNode(m, reg)
-                node.run("-i" + m.iface.name)
+                node.run("-i" + m.out.name)
                 nodes.append(node)
         
         wait_stable(nodes)

setup.py

@@ -95,7 +95,7 @@ setup(
     install_requires = ['pyOpenSSL >= 0.13', 'miniupnpc'],
     extras_require = {
         'geoip': ['geoip2'],
-        'test': ['mock', 'pathlib2', 'nemu', 'python-unshare', 'passfd']
+        'test': ['mock', 'pathlib2', 'multiping']
     },
     #dependency_links = [
     #    "http://miniupnp.free.fr/files/download.php?file=miniupnpc-1.7.20120714.tar.gz#egg=miniupnpc-1.7",