ip: add API to retrieve IPv6 link-layer address
[vpp.git] / test / vpp_interface.py
index 6797b10..7eb586c 100644 (file)
@@ -2,15 +2,17 @@ import binascii
 import socket
 import abc
 
-import six
-from six import moves
-
 from util import Host, mk_ll_addr
-from vpp_papi import mac_ntop
+from vpp_papi import mac_ntop, VppEnum
+from ipaddress import IPv4Network, IPv6Network
+
+try:
+    text_type = unicode
+except NameError:
+    text_type = str
 
 
-@six.add_metaclass(abc.ABCMeta)
-class VppInterface(object):
+class VppInterface(metaclass=abc.ABCMeta):
     """Generic VPP interface."""
 
     @property
@@ -26,7 +28,7 @@ class VppInterface(object):
     @property
     def local_mac(self):
         """MAC-address of the VPP interface."""
-        return self._local_mac
+        return str(self._local_mac)
 
     @property
     def local_addr(self):
@@ -36,76 +38,77 @@ class VppInterface(object):
     def remote_addr(self):
         return self._remote_addr
 
-    @property
-    def local_addr_n(self):
-        return self._local_addr_n
-
-    @property
-    def remote_addr_n(self):
-        return self._remote_addr_n
-
     @property
     def local_ip4(self):
         """Local IPv4 address on VPP interface (string)."""
         return self._local_ip4
 
+    @local_ip4.setter
+    def local_ip4(self, value):
+        self._local_ip4 = value
+
     @property
-    def local_ip4n(self):
-        """Local IPv4 address - raw, suitable as API parameter."""
-        return socket.inet_pton(socket.AF_INET, self._local_ip4)
+    def local_ip4_prefix_len(self):
+        """Local IPv4 prefix length """
+        return self._local_ip4_len
+
+    @local_ip4_prefix_len.setter
+    def local_ip4_prefix_len(self, value):
+        self._local_ip4_len = value
+
+    @property
+    def local_ip4_prefix(self):
+        """Local IPv4 prefix """
+        return ("%s/%d" % (self._local_ip4, self._local_ip4_len))
 
     @property
     def remote_ip4(self):
         """IPv4 address of remote peer "connected" to this interface."""
         return self._remote_hosts[0].ip4
 
-    @property
-    def remote_ip4n(self):
-        """IPv4 address of remote peer - raw, suitable as API parameter."""
-        return socket.inet_pton(socket.AF_INET, self.remote_ip4)
-
     @property
     def local_ip6(self):
         """Local IPv6 address on VPP interface (string)."""
         return self._local_ip6
 
+    @local_ip6.setter
+    def local_ip6(self, value):
+        self._local_ip6 = value
+
+    @property
+    def local_ip6_prefix_len(self):
+        """Local IPv6 prefix length """
+        return self._local_ip6_len
+
+    @local_ip6_prefix_len.setter
+    def local_ip6_prefix_len(self, value):
+        self._local_ip6_len = value
+
     @property
-    def local_ip6n(self):
-        """Local IPv6 address - raw, suitable as API parameter."""
-        return socket.inet_pton(socket.AF_INET6, self.local_ip6)
+    def local_ip6_prefix(self):
+        """Local IPv4 prefix """
+        return ("%s/%d" % (self._local_ip6, self._local_ip6_len))
 
     @property
     def remote_ip6(self):
         """IPv6 address of remote peer "connected" to this interface."""
         return self._remote_hosts[0].ip6
 
-    @property
-    def remote_ip6n(self):
-        """IPv6 address of remote peer - raw, suitable as API parameter"""
-        return socket.inet_pton(socket.AF_INET6, self.remote_ip6)
-
     @property
     def local_ip6_ll(self):
         """Local IPv6 link-local address on VPP interface (string)."""
+        if not self._local_ip6_ll:
+            self._local_ip6_ll = str(
+                self.test.vapi.sw_interface_ip6_get_link_local_address(
+                    self.sw_if_index).ip)
         return self._local_ip6_ll
 
-    @property
-    def local_ip6n_ll(self):
-        """Local IPv6 link-local address - raw, suitable as API parameter."""
-        return self._local_ip6n_ll
-
     @property
     def remote_ip6_ll(self):
         """Link-local IPv6 address of remote peer
         "connected" to this interface."""
         return self._remote_ip6_ll
 
-    @property
-    def remote_ip6n_ll(self):
-        """Link-local IPv6 address of remote peer
-        - raw, suitable as API parameter"""
-        return self._remote_ip6n_ll
-
     @property
     def name(self):
         """Name of the interface."""
@@ -193,48 +196,40 @@ class VppInterface(object):
 
     def set_mac(self, mac):
         self._local_mac = str(mac)
-        self._local_ip6_ll = mk_ll_addr(self._local_mac)
         self.test.vapi.sw_interface_set_mac_address(
             self.sw_if_index, mac.packed)
+        return self
 
     def set_sw_if_index(self, sw_if_index):
+        if sw_if_index > 255:
+            raise RuntimeError("Don't support sw_if_index values "
+                               "greater than 255.")
         self._sw_if_index = sw_if_index
 
         self.generate_remote_hosts()
 
         self._local_ip4 = "172.16.%u.1" % self.sw_if_index
-        self._local_ip4n = socket.inet_pton(socket.AF_INET, self.local_ip4)
+        self._local_ip4_len = 24
         self._local_ip4_subnet = "172.16.%u.0" % self.sw_if_index
-        self._local_ip4n_subnet = socket.inet_pton(socket.AF_INET,
-                                                   self._local_ip4_subnet)
         self._local_ip4_bcast = "172.16.%u.255" % self.sw_if_index
-        self._local_ip4n_bcast = socket.inet_pton(socket.AF_INET,
-                                                  self._local_ip4_bcast)
-        self.local_ip4_prefix_len = 24
         self.has_ip4_config = False
         self.ip4_table_id = 0
 
         self._local_ip6 = "fd01:%x::1" % self.sw_if_index
-        self._local_ip6n = socket.inet_pton(socket.AF_INET6, self.local_ip6)
-        self.local_ip6_prefix_len = 64
+        self._local_ip6_len = 64
         self.has_ip6_config = False
         self.ip6_table_id = 0
 
         self._local_addr = {socket.AF_INET: self.local_ip4,
                             socket.AF_INET6: self.local_ip6}
-        self._local_addr_n = {socket.AF_INET: self.local_ip4n,
-                              socket.AF_INET6: self.local_ip6n}
         self._remote_addr = {socket.AF_INET: self.remote_ip4,
                              socket.AF_INET6: self.remote_ip6}
-        self._remote_addr_n = {socket.AF_INET: self.remote_ip4n,
-                               socket.AF_INET6: self.remote_ip6n}
 
-        r = self.test.vapi.sw_interface_dump()
+        r = self.test.vapi.sw_interface_dump(sw_if_index=self.sw_if_index)
         for intf in r:
             if intf.sw_if_index == self.sw_if_index:
-                self._name = intf.interface_name.split(b'\0',
-                                                       1)[0].decode('utf8')
-                self._local_mac = mac_ntop(intf.l2_address)
+                self._name = intf.interface_name
+                self._local_mac = intf.l2_address
                 self._dump = intf
                 break
         else:
@@ -242,30 +237,27 @@ class VppInterface(object):
                 "Could not find interface with sw_if_index %d "
                 "in interface dump %s" %
                 (self.sw_if_index, moves.reprlib.repr(r)))
-        self._local_ip6_ll = mk_ll_addr(self.local_mac)
-        self._local_ip6n_ll = socket.inet_pton(socket.AF_INET6,
-                                               self.local_ip6_ll)
         self._remote_ip6_ll = mk_ll_addr(self.remote_mac)
-        self._remote_ip6n_ll = socket.inet_pton(socket.AF_INET6,
-                                                self.remote_ip6_ll)
+        self._local_ip6_ll = None
 
     def config_ip4(self):
         """Configure IPv4 address on the VPP interface."""
         self.test.vapi.sw_interface_add_del_address(
-            sw_if_index=self.sw_if_index, address=self.local_ip4n,
-            address_length=self.local_ip4_prefix_len)
+            sw_if_index=self.sw_if_index, prefix=self.local_ip4_prefix)
         self.has_ip4_config = True
+        return self
 
     def unconfig_ip4(self):
         """Remove IPv4 address on the VPP interface."""
         try:
             if self.has_ip4_config:
                 self.test.vapi.sw_interface_add_del_address(
-                    sw_if_index=self.sw_if_index, address=self.local_ip4n,
-                    address_length=self.local_ip4_prefix_len, is_add=0)
+                    sw_if_index=self.sw_if_index,
+                    prefix=self.local_ip4_prefix, is_add=0)
         except AttributeError:
             self.has_ip4_config = False
         self.has_ip4_config = False
+        return self
 
     def configure_ipv4_neighbors(self):
         """For every remote host assign neighbor's MAC to IPv4 addresses.
@@ -276,25 +268,26 @@ class VppInterface(object):
             self.test.vapi.ip_neighbor_add_del(self.sw_if_index,
                                                host.mac,
                                                host.ip4)
+        return self
 
     def config_ip6(self):
         """Configure IPv6 address on the VPP interface."""
         self.test.vapi.sw_interface_add_del_address(
-            sw_if_index=self.sw_if_index, address=self._local_ip6n,
-            address_length=self.local_ip6_prefix_len, is_ipv6=1)
+            sw_if_index=self.sw_if_index, prefix=self.local_ip6_prefix)
         self.has_ip6_config = True
+        return self
 
     def unconfig_ip6(self):
         """Remove IPv6 address on the VPP interface."""
         try:
             if self.has_ip6_config:
                 self.test.vapi.sw_interface_add_del_address(
-                    sw_if_index=self.sw_if_index, address=self.local_ip6n,
-                    address_length=self.local_ip6_prefix_len, is_ipv6=1,
-                    is_add=0)
+                    sw_if_index=self.sw_if_index,
+                    prefix=self.local_ip6_prefix, is_add=0)
         except AttributeError:
             self.has_ip6_config = False
         self.has_ip6_config = False
+        return self
 
     def configure_ipv6_neighbors(self):
         """For every remote host assign neighbor's MAC to IPv6 addresses.
@@ -310,6 +303,7 @@ class VppInterface(object):
         """Unconfigure IPv6 and IPv4 address on the VPP interface."""
         self.unconfig_ip4()
         self.unconfig_ip6()
+        return self
 
     def set_table_ip4(self, table_id):
         """Set the interface in a IPv4 Table.
@@ -319,6 +313,7 @@ class VppInterface(object):
         self.ip4_table_id = table_id
         self.test.vapi.sw_interface_set_table(
             self.sw_if_index, 0, self.ip4_table_id)
+        return self
 
     def set_table_ip6(self, table_id):
         """Set the interface in a IPv6 Table.
@@ -328,12 +323,14 @@ class VppInterface(object):
         self.ip6_table_id = table_id
         self.test.vapi.sw_interface_set_table(
             self.sw_if_index, 1, self.ip6_table_id)
+        return self
 
     def disable_ipv6_ra(self):
         """Configure IPv6 RA suppress on the VPP interface."""
         self.test.vapi.sw_interface_ip6nd_ra_config(
             sw_if_index=self.sw_if_index,
             suppress=1)
+        return self
 
     def ip6_ra_config(self, no=0, suppress=0, send_unicast=0):
         """Configure IPv6 RA suppress on the VPP interface."""
@@ -342,38 +339,55 @@ class VppInterface(object):
             is_no=no,
             suppress=suppress,
             send_unicast=send_unicast)
+        return self
 
-    def ip6_ra_prefix(self, address, address_length, is_no=0,
+    def ip6_ra_prefix(self, prefix, is_no=0,
                       off_link=0, no_autoconfig=0, use_default=0):
-        """Configure IPv6 RA suppress on the VPP interface."""
+        """Configure IPv6 RA suppress on the VPP interface.
+
+        prefix can be a string in the format of '<address>/<length_in_bits>'
+        or ipaddress.ipnetwork object (if strict.)"""
+
         self.test.vapi.sw_interface_ip6nd_ra_prefix(
-            self.sw_if_index,
-            address,
-            address_length,
-            is_no=is_no,
-            off_link=off_link,
-            no_autoconfig=no_autoconfig,
-            use_default=use_default)
+            sw_if_index=self.sw_if_index,
+            prefix=prefix,
+            use_default=use_default,
+            off_link=off_link, no_autoconfig=no_autoconfig,
+            is_no=is_no)
+        return self
 
     def admin_up(self):
         """Put interface ADMIN-UP."""
-        self.test.vapi.sw_interface_set_flags(self.sw_if_index,
-                                              admin_up_down=1)
+        self.test.vapi.sw_interface_set_flags(
+            self.sw_if_index,
+            flags=VppEnum.vl_api_if_status_flags_t.IF_STATUS_API_FLAG_ADMIN_UP)
+        return self
 
     def admin_down(self):
         """Put interface ADMIN-down."""
         self.test.vapi.sw_interface_set_flags(self.sw_if_index,
-                                              admin_up_down=0)
+                                              flags=0)
+        return self
+
+    def link_up(self):
+        """Put interface link-state-UP."""
+        self.test.vapi.cli("test interface link-state %s up" % self.name)
+
+    def link_down(self):
+        """Put interface link-state-down."""
+        self.test.vapi.cli("test interface link-state %s down" % self.name)
 
     def ip6_enable(self):
         """IPv6 Enable interface"""
         self.test.vapi.sw_interface_ip6_enable_disable(self.sw_if_index,
                                                        enable=1)
+        return self
 
     def ip6_disable(self):
         """Put interface ADMIN-DOWN."""
         self.test.vapi.sw_interface_ip6_enable_disable(self.sw_if_index,
                                                        enable=0)
+        return self
 
     def add_sub_if(self, sub_if):
         """Register a sub-interface with this interface.
@@ -387,20 +401,24 @@ class VppInterface(object):
                 self.sub_if.append(sub_if)
             else:
                 self.sub_if = sub_if
+        return self
 
     def enable_mpls(self):
         """Enable MPLS on the VPP interface."""
         self.test.vapi.sw_interface_set_mpls_enable(self.sw_if_index)
+        return self
 
     def disable_mpls(self):
         """Enable MPLS on the VPP interface."""
         self.test.vapi.sw_interface_set_mpls_enable(self.sw_if_index, 0)
+        return self
 
     def is_ip4_entry_in_fib_dump(self, dump):
         for i in dump:
-            if i.address == self.local_ip4n and \
-                    i.address_length == self.local_ip4_prefix_len and \
-                    i.table_id == self.ip4_table_id:
+            n = IPv4Network(text_type("%s/%d" % (self.local_ip4,
+                                                 self.local_ip4_prefix_len)))
+            if i.route.prefix == n and \
+               i.route.table_id == self.ip4_table_id:
                 return True
         return False
 
@@ -408,20 +426,23 @@ class VppInterface(object):
         """ Set the interface to unnumbered via ip_sw_if_index """
         self.test.vapi.sw_interface_set_unnumbered(ip_sw_if_index,
                                                    self.sw_if_index)
+        return self
 
     def unset_unnumbered(self, ip_sw_if_index):
         """ Unset the interface to unnumbered via ip_sw_if_index """
         self.test.vapi.sw_interface_set_unnumbered(ip_sw_if_index,
                                                    self.sw_if_index, is_add=0)
+        return self
 
     def set_proxy_arp(self, enable=1):
         """ Set the interface to enable/disable Proxy ARP """
         self.test.vapi.proxy_arp_intfc_enable_disable(
-            self.sw_if_index,
-            enable)
+            sw_if_index=self.sw_if_index,
+            enable=enable)
+        return self
 
     def query_vpp_config(self):
-        dump = self.test.vapi.sw_interface_dump()
+        dump = self.test.vapi.sw_interface_dump(sw_if_index=self.sw_if_index)
         return self.is_interface_config_in_dump(dump)
 
     def get_interface_config_from_dump(self, dump):
@@ -442,16 +463,40 @@ class VppInterface(object):
                                                   name='sw_interface_event')
             self.test.assert_equal(event.sw_if_index, self.sw_if_index,
                                    "sw_if_index")
-            self.test.assert_equal(event.admin_up_down, admin_up_down,
+            self.test.assert_equal((event.flags & 1), admin_up_down,
                                    "admin state")
-            self.test.assert_equal(event.link_up_down, link_up_down,
+            self.test.assert_equal((event.flags & 2), link_up_down,
                                    "link state")
         dump = self.test.vapi.sw_interface_dump()
         if_state = self.get_interface_config_from_dump(dump)
-        self.test.assert_equal(if_state.admin_up_down, admin_up_down,
+        self.test.assert_equal((if_state.flags & 1), admin_up_down,
                                "admin state")
-        self.test.assert_equal(if_state.link_up_down, link_up_down,
+        self.test.assert_equal((if_state.flags & 2), link_up_down,
                                "link state")
 
     def __str__(self):
         return self.name
+
+    def get_rx_stats(self):
+        c = self.test.statistics.get_counter("^/if/rx$")
+        return c[0][self.sw_if_index]
+
+    def get_tx_stats(self):
+        c = self.test.statistics.get_counter("^/if/tx$")
+        return c[0][self.sw_if_index]
+
+    def set_l3_mtu(self, mtu):
+        self.test.vapi.sw_interface_set_mtu(self.sw_if_index, [mtu, 0, 0, 0])
+        return self
+
+    def set_ip4_mtu(self, mtu):
+        self.test.vapi.sw_interface_set_mtu(self.sw_if_index, [0, mtu, 0, 0])
+        return self
+
+    def set_ip6_mtu(self, mtu):
+        self.test.vapi.sw_interface_set_mtu(self.sw_if_index, [0, 0, mtu, 0])
+        return self
+
+    def set_mpls_mtu(self, mtu):
+        self.test.vapi.sw_interface_set_mtu(self.sw_if_index, [0, 0, 0, mtu])
+        return self