Merge branch 'selftests-net-switch-pmtu-sh-to-use-the-internal-ovs-script'

Aaron Conole says:

====================
selftests: net: Switch pmtu.sh to use the internal ovs script.

Currently, if a user wants to run pmtu.sh and cover all the provided test
cases, they need to install the Open vSwitch userspace utilities.  This
dependency is difficult for users as well as CI environments, because the
userspace build and setup may require lots of support and devel packages
to be installed, system setup to be correct, and things like permissions
and selinux policies to be properly configured.

The kernel selftest suite includes an ovs-dpctl.py utility which can
interact with the openvswitch module directly.  This lets developers and
CI environments run without needing too many extra dependencies - just
the pyroute2 python package.

This series enhances the ovs-dpctl utility to provide support for set()
and tunnel() flow specifiers, better ipv6 handling support, and the
ability to add tunnel vports, and LWT interfaces.  Finally, it modifies
the pmtu.sh script to call the ovs-dpctl.py utility rather than the
typical OVS userspace utilities.  The pmtu.sh can still fall back on
the Open vSwitch userspace utilities if the ovs-dpctl.py script can't
be used.
====================

Link: https://patch.msgid.link/20240625172245.233874-1-aconole@redhat.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

tools/testing/selftests/net/config

@@ -74,7 +74,12 @@ CONFIG_NET_SCH_ETF=m
 CONFIG_NET_SCH_NETEM=y
 CONFIG_NET_SCH_PRIO=m
 CONFIG_NFT_COMPAT=m
+CONFIG_NF_CONNTRACK_OVS=y
 CONFIG_NF_FLOW_TABLE=m
+CONFIG_OPENVSWITCH=m
+CONFIG_OPENVSWITCH_GENEVE=m
+CONFIG_OPENVSWITCH_GRE=m
+CONFIG_OPENVSWITCH_VXLAN=m
 CONFIG_PSAMPLE=m
 CONFIG_TCP_MD5SIG=y
 CONFIG_TEST_BLACKHOLE_DEV=m

tools/testing/selftests/net/openvswitch/ovs-dpctl.py

@@ -10,6 +10,7 @@ import ipaddress
 import logging
 import multiprocessing
 import re
+import socket
 import struct
 import sys
 import time
@@ -29,10 +30,11 @@ try:
     from pyroute2.netlink.exceptions import NetlinkError
     from pyroute2.netlink.generic import GenericNetlinkSocket
     import pyroute2
+    import pyroute2.iproute
 
 except ModuleNotFoundError:
     print("Need to install the python pyroute2 package >= 0.6.")
-    sys.exit(0)
+    sys.exit(1)
 
 
 OVS_DATAPATH_FAMILY = "ovs_datapath"
@@ -198,6 +200,18 @@ def convert_ipv4(data):
 
     return int(ipaddress.IPv4Address(ip)), int(ipaddress.IPv4Address(mask))
 
+def convert_ipv6(data):
+    ip, _, mask = data.partition('/')
+
+    if not ip:
+        ip = mask = 0
+    elif not mask:
+        mask = 'ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff'
+    elif mask.isdigit():
+        mask = ipaddress.IPv6Network("::/" + mask).hostmask
+
+    return ipaddress.IPv6Address(ip).packed, ipaddress.IPv6Address(mask).packed
+
 def convert_int(size):
     def convert_int_sized(data):
         value, _, mask = data.partition('/')
@@ -282,7 +296,7 @@ class ovsactions(nla):
         ("OVS_ACTION_ATTR_UNSPEC", "none"),
         ("OVS_ACTION_ATTR_OUTPUT", "uint32"),
         ("OVS_ACTION_ATTR_USERSPACE", "userspace"),
-        ("OVS_ACTION_ATTR_SET", "none"),
+        ("OVS_ACTION_ATTR_SET", "ovskey"),
         ("OVS_ACTION_ATTR_PUSH_VLAN", "none"),
         ("OVS_ACTION_ATTR_POP_VLAN", "flag"),
         ("OVS_ACTION_ATTR_SAMPLE", "none"),
@@ -290,7 +304,7 @@ class ovsactions(nla):
         ("OVS_ACTION_ATTR_HASH", "none"),
         ("OVS_ACTION_ATTR_PUSH_MPLS", "none"),
         ("OVS_ACTION_ATTR_POP_MPLS", "flag"),
-        ("OVS_ACTION_ATTR_SET_MASKED", "none"),
+        ("OVS_ACTION_ATTR_SET_MASKED", "ovskey"),
         ("OVS_ACTION_ATTR_CT", "ctact"),
         ("OVS_ACTION_ATTR_TRUNC", "uint32"),
         ("OVS_ACTION_ATTR_PUSH_ETH", "none"),
@@ -437,13 +451,12 @@ class ovsactions(nla):
     def dpstr(self, more=False):
         print_str = ""
 
-        for field in self.nla_map:
+        for field in self["attrs"]:
             if field[1] == "none" or self.get_attr(field[0]) is None:
                 continue
             if print_str != "":
                 print_str += ","
 
-            if field[1] == "uint32":
             if field[0] == "OVS_ACTION_ATTR_OUTPUT":
                 print_str += "%d" % int(self.get_attr(field[0]))
             elif field[0] == "OVS_ACTION_ATTR_RECIRC":
@@ -452,8 +465,7 @@ class ovsactions(nla):
                 print_str += "trunc(%d)" % int(self.get_attr(field[0]))
             elif field[0] == "OVS_ACTION_ATTR_DROP":
                 print_str += "drop(%d)" % int(self.get_attr(field[0]))
-            elif field[1] == "flag":
-                if field[0] == "OVS_ACTION_ATTR_CT_CLEAR":
+            elif field[0] == "OVS_ACTION_ATTR_CT_CLEAR":
                 print_str += "ct_clear"
             elif field[0] == "OVS_ACTION_ATTR_POP_VLAN":
                 print_str += "pop_vlan"
@@ -469,8 +481,23 @@ class ovsactions(nla):
                     print_str += "clone("
                     print_str += datum.dpstr(more)
                     print_str += ")"
+                elif field[0] == "OVS_ACTION_ATTR_SET" or \
+                     field[0] == "OVS_ACTION_ATTR_SET_MASKED":
+                    print_str += "set"
+                    field = datum
+                    mask = None
+                    if field[0] == "OVS_ACTION_ATTR_SET_MASKED":
+                        print_str += "_masked"
+                        field = datum[0]
+                        mask = datum[1]
+                    print_str += "("
+                    print_str += field.dpstr(mask, more)
+                    print_str += ")"
                 else:
+                    try:
                         print_str += datum.dpstr(more)
+                    except:
+                        print_str += "{ATTR: %s not decoded}" % field[0]
 
         return print_str
 
@@ -544,6 +571,25 @@ class ovsactions(nla):
                 self["attrs"].append(("OVS_ACTION_ATTR_CLONE", subacts))
                 actstr = actstr[parsedLen:]
                 parsed = True
+            elif parse_starts_block(actstr, "set(", False):
+                parencount += 1
+                k = ovskey()
+                actstr = actstr[len("set("):]
+                actstr = k.parse(actstr, None)
+                self["attrs"].append(("OVS_ACTION_ATTR_SET", k))
+                if not actstr.startswith(")"):
+                    actstr = ")" + actstr
+                parsed = True
+            elif parse_starts_block(actstr, "set_masked(", False):
+                parencount += 1
+                k = ovskey()
+                m = ovskey()
+                actstr = actstr[len("set_masked("):]
+                actstr = k.parse(actstr, m)
+                self["attrs"].append(("OVS_ACTION_ATTR_SET_MASKED", [k, m]))
+                if not actstr.startswith(")"):
+                    actstr = ")" + actstr
+                parsed = True
             elif parse_starts_block(actstr, "ct(", False):
                 parencount += 1
                 actstr = actstr[len("ct(") :]
@@ -675,7 +721,7 @@ class ovskey(nla):
         ("OVS_KEY_ATTR_ARP", "ovs_key_arp"),
         ("OVS_KEY_ATTR_ND", "ovs_key_nd"),
         ("OVS_KEY_ATTR_SKB_MARK", "uint32"),
-        ("OVS_KEY_ATTR_TUNNEL", "none"),
+        ("OVS_KEY_ATTR_TUNNEL", "ovs_key_tunnel"),
         ("OVS_KEY_ATTR_SCTP", "ovs_key_sctp"),
         ("OVS_KEY_ATTR_TCP_FLAGS", "be16"),
         ("OVS_KEY_ATTR_DP_HASH", "uint32"),
@@ -907,21 +953,21 @@ class ovskey(nla):
                 "src",
                 "src",
                 lambda x: str(ipaddress.IPv6Address(x)),
-                lambda x: int.from_bytes(x, "big"),
-                lambda x: ipaddress.IPv6Address(x),
+                lambda x: ipaddress.IPv6Address(x).packed if x else 0,
+                convert_ipv6,
             ),
             (
                 "dst",
                 "dst",
                 lambda x: str(ipaddress.IPv6Address(x)),
-                lambda x: int.from_bytes(x, "big"),
-                lambda x: ipaddress.IPv6Address(x),
+                lambda x: ipaddress.IPv6Address(x).packed if x else 0,
+                convert_ipv6,
             ),
-            ("label", "label", "%d", int),
-            ("proto", "proto", "%d", int),
-            ("tclass", "tclass", "%d", int),
-            ("hlimit", "hlimit", "%d", int),
-            ("frag", "frag", "%d", int),
+            ("label", "label", "%d", lambda x: int(x) if x else 0),
+            ("proto", "proto", "%d", lambda x: int(x) if x else 0),
+            ("tclass", "tclass", "%d", lambda x: int(x) if x else 0),
+            ("hlimit", "hlimit", "%d", lambda x: int(x) if x else 0),
+            ("frag", "frag", "%d", lambda x: int(x) if x else 0),
         )
 
         def __init__(
@@ -1119,7 +1165,7 @@ class ovskey(nla):
                 "target",
                 "target",
                 lambda x: str(ipaddress.IPv6Address(x)),
-                lambda x: int.from_bytes(x, "big"),
+                convert_ipv6,
             ),
             ("sll", "sll", macstr, lambda x: int.from_bytes(x, "big")),
             ("tll", "tll", macstr, lambda x: int.from_bytes(x, "big")),
@@ -1204,13 +1250,13 @@ class ovskey(nla):
                 "src",
                 "src",
                 lambda x: str(ipaddress.IPv6Address(x)),
-                lambda x: int.from_bytes(x, "big", convertmac),
+                convert_ipv6,
             ),
             (
                 "dst",
                 "dst",
                 lambda x: str(ipaddress.IPv6Address(x)),
-                lambda x: int.from_bytes(x, "big"),
+                convert_ipv6,
             ),
             ("tp_src", "tp_src", "%d", int),
             ("tp_dst", "tp_dst", "%d", int),
@@ -1235,6 +1281,163 @@ class ovskey(nla):
                 init=init,
             )
 
+    class ovs_key_tunnel(nla):
+        nla_flags = NLA_F_NESTED
+
+        nla_map = (
+            ("OVS_TUNNEL_KEY_ATTR_ID", "be64"),
+            ("OVS_TUNNEL_KEY_ATTR_IPV4_SRC", "ipaddr"),
+            ("OVS_TUNNEL_KEY_ATTR_IPV4_DST", "ipaddr"),
+            ("OVS_TUNNEL_KEY_ATTR_TOS", "uint8"),
+            ("OVS_TUNNEL_KEY_ATTR_TTL", "uint8"),
+            ("OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT", "flag"),
+            ("OVS_TUNNEL_KEY_ATTR_CSUM", "flag"),
+            ("OVS_TUNNEL_KEY_ATTR_OAM", "flag"),
+            ("OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS", "array(uint32)"),
+            ("OVS_TUNNEL_KEY_ATTR_TP_SRC", "be16"),
+            ("OVS_TUNNEL_KEY_ATTR_TP_DST", "be16"),
+            ("OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS", "none"),
+            ("OVS_TUNNEL_KEY_ATTR_IPV6_SRC", "ipaddr"),
+            ("OVS_TUNNEL_KEY_ATTR_IPV6_DST", "ipaddr"),
+            ("OVS_TUNNEL_KEY_ATTR_PAD", "none"),
+            ("OVS_TUNNEL_KEY_ATTR_ERSPAN_OPTS", "none"),
+            ("OVS_TUNNEL_KEY_ATTR_IPV4_INFO_BRIDGE", "flag"),
+        )
+
+        def parse(self, flowstr, mask=None):
+            if not flowstr.startswith("tunnel("):
+                return None, None
+
+            k = ovskey.ovs_key_tunnel()
+            if mask is not None:
+                mask = ovskey.ovs_key_tunnel()
+
+            flowstr = flowstr[len("tunnel("):]
+
+            v6_address = None
+
+            fields = [
+                ("tun_id=", r"(\d+)", int, "OVS_TUNNEL_KEY_ATTR_ID",
+                 0xffffffffffffffff, None, None),
+
+                ("src=", r"([0-9a-fA-F\.]+)", str,
+                 "OVS_TUNNEL_KEY_ATTR_IPV4_SRC", "255.255.255.255", "0.0.0.0",
+                 False),
+                ("dst=", r"([0-9a-fA-F\.]+)", str,
+                 "OVS_TUNNEL_KEY_ATTR_IPV4_DST", "255.255.255.255", "0.0.0.0",
+                 False),
+
+                ("ipv6_src=", r"([0-9a-fA-F:]+)", str,
+                 "OVS_TUNNEL_KEY_ATTR_IPV6_SRC",
+                 "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", "::", True),
+                ("ipv6_dst=", r"([0-9a-fA-F:]+)", str,
+                 "OVS_TUNNEL_KEY_ATTR_IPV6_DST",
+                 "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", "::", True),
+
+                ("tos=", r"(\d+)", int, "OVS_TUNNEL_KEY_ATTR_TOS", 255, 0,
+                 None),
+                ("ttl=", r"(\d+)", int, "OVS_TUNNEL_KEY_ATTR_TTL", 255, 0,
+                 None),
+
+                ("tp_src=", r"(\d+)", int, "OVS_TUNNEL_KEY_ATTR_TP_SRC",
+                 65535, 0, None),
+                ("tp_dst=", r"(\d+)", int, "OVS_TUNNEL_KEY_ATTR_TP_DST",
+                 65535, 0, None),
+            ]
+
+            forced_include = ["OVS_TUNNEL_KEY_ATTR_TTL"]
+
+            for prefix, regex, typ, attr_name, mask_val, default_val, v46_flag in fields:
+                flowstr, value = parse_extract_field(flowstr, prefix, regex, typ, False)
+                if not attr_name:
+                    raise Exception("Bad list value in tunnel fields")
+
+                if value is None and attr_name in forced_include:
+                    value = default_val
+                    mask_val = default_val
+
+                if value is not None:
+                    if v46_flag is not None:
+                        if v6_address is None:
+                            v6_address = v46_flag
+                        if v46_flag != v6_address:
+                            raise ValueError("Cannot mix v6 and v4 addresses")
+                    k["attrs"].append([attr_name, value])
+                    if mask is not None:
+                        mask["attrs"].append([attr_name, mask_val])
+                else:
+                    if v46_flag is not None:
+                        if v6_address is None or v46_flag != v6_address:
+                            continue
+                    if mask is not None:
+                        mask["attrs"].append([attr_name, default_val])
+
+            if k["attrs"][0][0] != "OVS_TUNNEL_KEY_ATTR_ID":
+                raise ValueError("Needs a tunid set")
+
+            if flowstr.startswith("flags("):
+                flowstr = flowstr[len("flags("):]
+                flagspos = flowstr.find(")")
+                flags = flowstr[:flagspos]
+                flowstr = flowstr[flagspos + 1:]
+
+                flag_attrs = {
+                    "df": "OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT",
+                    "csum": "OVS_TUNNEL_KEY_ATTR_CSUM",
+                    "oam": "OVS_TUNNEL_KEY_ATTR_OAM"
+                }
+
+                for flag in flags.split("|"):
+                    if flag in flag_attrs:
+                        k["attrs"].append([flag_attrs[flag], True])
+                        if mask is not None:
+                            mask["attrs"].append([flag_attrs[flag], True])
+
+            flowstr = flowstr[strspn(flowstr, ", ") :]
+            return flowstr, k, mask
+
+        def dpstr(self, mask=None, more=False):
+            print_str = "tunnel("
+
+            flagsattrs = []
+            for k in self["attrs"]:
+                noprint = False
+                if k[0] == "OVS_TUNNEL_KEY_ATTR_ID":
+                    print_str += "tun_id=%d" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_IPV4_SRC":
+                    print_str += "src=%s" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_IPV4_DST":
+                    print_str += "dst=%s" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_IPV6_SRC":
+                    print_str += "ipv6_src=%s" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_IPV6_DST":
+                    print_str += "ipv6_dst=%s" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_TOS":
+                    print_str += "tos=%d" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_TTL":
+                    print_str += "ttl=%d" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_TP_SRC":
+                    print_str += "tp_src=%d" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_TP_DST":
+                    print_str += "tp_dst=%d" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT":
+                    noprint = True
+                    flagsattrs.append("df")
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_CSUM":
+                    noprint = True
+                    flagsattrs.append("csum")
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_OAM":
+                    noprint = True
+                    flagsattrs.append("oam")
+
+                if not noprint:
+                    print_str += ","
+
+            if len(flagsattrs):
+                print_str += "flags(" + "|".join(flagsattrs) + ")"
+            print_str += ")"
+            return print_str
+
     class ovs_key_mpls(nla):
         fields = (("lse", ">I"),)
 
@@ -1243,6 +1446,7 @@ class ovskey(nla):
             ("OVS_KEY_ATTR_PRIORITY", "skb_priority", intparse),
             ("OVS_KEY_ATTR_SKB_MARK", "skb_mark", intparse),
             ("OVS_KEY_ATTR_RECIRC_ID", "recirc_id", intparse),
+            ("OVS_KEY_ATTR_TUNNEL", "tunnel", ovskey.ovs_key_tunnel),
             ("OVS_KEY_ATTR_DP_HASH", "dp_hash", intparse),
             ("OVS_KEY_ATTR_CT_STATE", "ct_state", parse_ct_state),
             ("OVS_KEY_ATTR_CT_ZONE", "ct_zone", intparse),
@@ -1309,7 +1513,7 @@ class ovskey(nla):
                 mask["attrs"].append([field[0], m])
             self["attrs"].append([field[0], k])
 
-            flowstr = flowstr[strspn(flowstr, "),") :]
+            flowstr = flowstr[strspn(flowstr, "), ") :]
 
         return flowstr
 
@@ -1345,6 +1549,13 @@ class ovskey(nla):
                 lambda x: False,
                 True,
             ),
+            (
+                "OVS_KEY_ATTR_TUNNEL",
+                "tunnel",
+                None,
+                False,
+                False,
+            ),
             (
                 "OVS_KEY_ATTR_CT_STATE",
                 "ct_state",
@@ -1617,7 +1828,7 @@ class OvsVport(GenericNetlinkSocket):
             ("OVS_VPORT_ATTR_PORT_NO", "uint32"),
             ("OVS_VPORT_ATTR_TYPE", "uint32"),
             ("OVS_VPORT_ATTR_NAME", "asciiz"),
-            ("OVS_VPORT_ATTR_OPTIONS", "none"),
+            ("OVS_VPORT_ATTR_OPTIONS", "vportopts"),
             ("OVS_VPORT_ATTR_UPCALL_PID", "array(uint32)"),
             ("OVS_VPORT_ATTR_STATS", "vportstats"),
             ("OVS_VPORT_ATTR_PAD", "none"),
@@ -1625,6 +1836,13 @@ class OvsVport(GenericNetlinkSocket):
             ("OVS_VPORT_ATTR_NETNSID", "uint32"),
         )
 
+        class vportopts(nla):
+            nla_map = (
+                ("OVS_TUNNEL_ATTR_UNSPEC", "none"),
+                ("OVS_TUNNEL_ATTR_DST_PORT", "uint16"),
+                ("OVS_TUNNEL_ATTR_EXTENSION", "none"),
+            )
+
         class vportstats(nla):
             fields = (
                 ("rx_packets", "=Q"),
@@ -1693,7 +1911,7 @@ class OvsVport(GenericNetlinkSocket):
                 raise ne
         return reply
 
-    def attach(self, dpindex, vport_ifname, ptype):
+    def attach(self, dpindex, vport_ifname, ptype, dport, lwt):
         msg = OvsVport.ovs_vport_msg()
 
         msg["cmd"] = OVS_VPORT_CMD_NEW
@@ -1702,12 +1920,43 @@ class OvsVport(GenericNetlinkSocket):
         msg["dpifindex"] = dpindex
         port_type = OvsVport.str_to_type(ptype)
 
-        msg["attrs"].append(["OVS_VPORT_ATTR_TYPE", port_type])
         msg["attrs"].append(["OVS_VPORT_ATTR_NAME", vport_ifname])
         msg["attrs"].append(
             ["OVS_VPORT_ATTR_UPCALL_PID", [self.upcall_packet.epid]]
         )
 
+        TUNNEL_DEFAULTS = [("geneve", 6081),
+                           ("vxlan", 4789)]
+
+        for tnl in TUNNEL_DEFAULTS:
+            if ptype == tnl[0]:
+                if not dport:
+                    dport = tnl[1]
+
+                if not lwt:
+                    vportopt = OvsVport.ovs_vport_msg.vportopts()
+                    vportopt["attrs"].append(
+                        ["OVS_TUNNEL_ATTR_DST_PORT", socket.htons(dport)]
+                    )
+                    msg["attrs"].append(
+                        ["OVS_VPORT_ATTR_OPTIONS", vportopt]
+                    )
+                else:
+                    port_type = OvsVport.OVS_VPORT_TYPE_NETDEV
+                    ipr = pyroute2.iproute.IPRoute()
+
+                    if tnl[0] == "geneve":
+                        ipr.link("add", ifname=vport_ifname, kind=tnl[0],
+                                 geneve_port=dport,
+                                 geneve_collect_metadata=True,
+                                 geneve_udp_zero_csum6_rx=1)
+                    elif tnl[0] == "vxlan":
+                        ipr.link("add", ifname=vport_ifname, kind=tnl[0],
+                                 vxlan_learning=0, vxlan_collect_metadata=1,
+                                 vxlan_udp_zero_csum6_rx=1, vxlan_port=dport)
+                break
+        msg["attrs"].append(["OVS_VPORT_ATTR_TYPE", port_type])
+
         try:
             reply = self.nlm_request(
                 msg, msg_type=self.prid, msg_flags=NLM_F_REQUEST | NLM_F_ACK
@@ -2053,12 +2302,19 @@ def print_ovsdp_full(dp_lookup_rep, ifindex, ndb=NDB(), vpl=OvsVport()):
     for iface in ndb.interfaces:
         rep = vpl.info(iface.ifname, ifindex)
         if rep is not None:
+            opts = ""
+            vpo = rep.get_attr("OVS_VPORT_ATTR_OPTIONS")
+            if vpo:
+                dpo = vpo.get_attr("OVS_TUNNEL_ATTR_DST_PORT")
+                if dpo:
+                    opts += " tnl-dport:%s" % socket.ntohs(dpo)
             print(
-                "  port %d: %s (%s)"
+                "  port %d: %s (%s%s)"
                 % (
                     rep.get_attr("OVS_VPORT_ATTR_PORT_NO"),
                     rep.get_attr("OVS_VPORT_ATTR_NAME"),
                     OvsVport.type_to_str(rep.get_attr("OVS_VPORT_ATTR_TYPE")),
+                    opts,
                 )
             )
 
@@ -2120,12 +2376,30 @@ def main(argv):
         "--ptype",
         type=str,
         default="netdev",
-        choices=["netdev", "internal"],
+        choices=["netdev", "internal", "geneve", "vxlan"],
         help="Interface type (default netdev)",
     )
+    addifcmd.add_argument(
+        "-p",
+        "--dport",
+        type=int,
+        default=0,
+        help="Destination port (0 for default)"
+    )
+    addifcmd.add_argument(
+        "-l",
+        "--lwt",
+        type=bool,
+        default=True,
+        help="Use LWT infrastructure instead of vport (default true)."
+    )
     delifcmd = subparsers.add_parser("del-if")
     delifcmd.add_argument("dpname", help="Datapath Name")
     delifcmd.add_argument("delif", help="Interface name for adding")
+    delifcmd.add_argument("-d",
+                          "--dellink",
+                          type=bool, default=False,
+                          help="Delete the link as well.")
 
     dumpflcmd = subparsers.add_parser("dump-flows")
     dumpflcmd.add_argument("dumpdp", help="Datapath Name")
@@ -2186,7 +2460,8 @@ def main(argv):
             print("DP '%s' not found." % args.dpname)
             return 1
         dpindex = rep["dpifindex"]
-        rep = ovsvp.attach(rep["dpifindex"], args.addif, args.ptype)
+        rep = ovsvp.attach(rep["dpifindex"], args.addif, args.ptype,
+                           args.dport, args.lwt)
         msg = "vport '%s'" % args.addif
         if rep and rep["header"]["error"] is None:
             msg += " added."
@@ -2207,6 +2482,9 @@ def main(argv):
             msg += " removed."
         else:
             msg += " failed to remove."
+        if args.dellink:
+            ipr = pyroute2.iproute.IPRoute()
+            ipr.link("del", index=ipr.link_lookup(ifname=args.delif)[0])
     elif hasattr(args, "dumpdp"):
         rep = ovsdp.info(args.dumpdp, 0)
         if rep is None:

tools/testing/selftests/net/pmtu.sh

@@ -842,25 +842,97 @@ setup_bridge() {
 	run_cmd ${ns_a} ip link set veth_A-C master br0
 }
 
+setup_ovs_via_internal_utility() {
+	type="${1}"
+	a_addr="${2}"
+	b_addr="${3}"
+	dport="${4}"
+
+	run_cmd python3 ./openvswitch/ovs-dpctl.py add-if ovs_br0 ${type}_a -t ${type} || return 1
+
+	ports=$(python3 ./openvswitch/ovs-dpctl.py show)
+	br0_port=$(echo "$ports" | grep -E "\sovs_br0" | sed -e 's@port @@' | cut -d: -f1 | xargs)
+	type_a_port=$(echo "$ports" | grep ${type}_a | sed -e 's@port @@' | cut -d: -f1 | xargs)
+	veth_a_port=$(echo "$ports" | grep veth_A | sed -e 's@port @@' | cut -d: -f1 | xargs)
+
+	v4_a_tun="${prefix4}.${a_r1}.1"
+	v4_b_tun="${prefix4}.${b_r1}.1"
+
+	v6_a_tun="${prefix6}:${a_r1}::1"
+	v6_b_tun="${prefix6}:${b_r1}::1"
+
+	if [ "${v4_a_tun}" = "${a_addr}" ]; then
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),in_port(${veth_a_port}),eth(),eth_type(0x0800),ipv4()" \
+		    "set(tunnel(tun_id=1,dst=${v4_b_tun},ttl=64,tp_dst=${dport},flags(df|csum))),${type_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),in_port(${veth_a_port}),eth(),eth_type(0x86dd),ipv6()" \
+		    "set(tunnel(tun_id=1,dst=${v4_b_tun},ttl=64,tp_dst=${dport},flags(df|csum))),${type_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),tunnel(tun_id=1,src=${v4_b_tun},dst=${v4_a_tun}),in_port(${type_a_port}),eth(),eth_type(0x0800),ipv4()" \
+		    "${veth_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),tunnel(tun_id=1,src=${v4_b_tun},dst=${v4_a_tun}),in_port(${type_a_port}),eth(),eth_type(0x86dd),ipv6()" \
+		    "${veth_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),tunnel(tun_id=1,src=${v4_b_tun},dst=${v4_a_tun}),in_port(${type_a_port}),eth(),eth_type(0x0806),arp()" \
+		    "${veth_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),in_port(${veth_a_port}),eth(),eth_type(0x0806),arp(sip=${veth4_c_addr},tip=${tunnel4_b_addr})" \
+		    "set(tunnel(tun_id=1,dst=${v4_b_tun},ttl=64,tp_dst=${dport},flags(df|csum))),${type_a_port}"
+	else
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),in_port(${veth_a_port}),eth(),eth_type(0x0800),ipv4()" \
+		    "set(tunnel(tun_id=1,ipv6_dst=${v6_b_tun},ttl=64,tp_dst=${dport},flags(df|csum))),${type_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),in_port(${veth_a_port}),eth(),eth_type(0x86dd),ipv6()" \
+		    "set(tunnel(tun_id=1,ipv6_dst=${v6_b_tun},ttl=64,tp_dst=${dport},flags(df|csum))),${type_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),tunnel(tun_id=1,ipv6_src=${v6_b_tun},ipv6_dst=${v6_a_tun}),in_port(${type_a_port}),eth(),eth_type(0x0800),ipv4()" \
+		    "${veth_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),tunnel(tun_id=1,ipv6_src=${v6_b_tun},ipv6_dst=${v6_a_tun}),in_port(${type_a_port}),eth(),eth_type(0x86dd),ipv6()" \
+		    "${veth_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),tunnel(tun_id=1,ipv6_src=${v6_b_tun},ipv6_dst=${v6_a_tun}),in_port(${type_a_port}),eth(),eth_type(0x0806),arp()" \
+		    "${veth_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),in_port(${veth_a_port}),eth(),eth_type(0x0806),arp(sip=${veth4_c_addr},tip=${tunnel4_b_addr})" \
+		    "set(tunnel(tun_id=1,ipv6_dst=${v6_b_tun},ttl=64,tp_dst=${dport},flags(df|csum))),${type_a_port}"
+	fi
+}
+
+setup_ovs_via_vswitchd() {
+	type="${1}"
+	b_addr="${2}"
+
+	run_cmd ovs-vsctl add-port ovs_br0 ${type}_a -- \
+		set interface ${type}_a type=${type} \
+		options:remote_ip=${b_addr} options:key=1 options:csum=true || return 1
+}
+
 setup_ovs_vxlan_or_geneve() {
 	type="${1}"
 	a_addr="${2}"
 	b_addr="${3}"
+	dport="6081"
 
 	if [ "${type}" = "vxlan" ]; then
+		dport="4789"
 		opts="${opts} ttl 64 dstport 4789"
 		opts_b="local ${b_addr}"
 	fi
 
-	run_cmd ovs-vsctl add-port ovs_br0 ${type}_a -- \
-		set interface ${type}_a type=${type} \
-		options:remote_ip=${b_addr} options:key=1 options:csum=true || return 1
+	setup_ovs_via_internal_utility "${type}" "${a_addr}" "${b_addr}" \
+				       "${dport}" || \
+	    setup_ovs_via_vswitchd "${type}" "${b_addr}" || return 1
 
 	run_cmd ${ns_b} ip link add ${type}_b type ${type} id 1 ${opts_b} remote ${a_addr} ${opts} || return 1
 
 	run_cmd ${ns_b} ip addr add ${tunnel4_b_addr}/${tunnel4_mask} dev ${type}_b
 	run_cmd ${ns_b} ip addr add ${tunnel6_b_addr}/${tunnel6_mask} dev ${type}_b
 
+	run_cmd ip link set ${type}_a up
 	run_cmd ${ns_b} ip link set ${type}_b up
 }
 
@@ -880,8 +952,24 @@ setup_ovs_vxlan6() {
 	setup_ovs_vxlan_or_geneve vxlan  ${prefix6}:${a_r1}::1 ${prefix6}:${b_r1}::1
 }
 
+setup_ovs_br_internal() {
+	run_cmd python3 ./openvswitch/ovs-dpctl.py add-dp ovs_br0 || \
+		return 1
+}
+
+setup_ovs_br_vswitchd() {
+	run_cmd ovs-vsctl add-br ovs_br0 || return 1
+}
+
+setup_ovs_add_if() {
+	ifname="${1}"
+	run_cmd python3 ./openvswitch/ovs-dpctl.py add-if ovs_br0 \
+		"${ifname}" || \
+		run_cmd ovs-vsctl add-port ovs_br0 "${ifname}"
+}
+
 setup_ovs_bridge() {
-	run_cmd ovs-vsctl add-br ovs_br0 || return $ksft_skip
+	setup_ovs_br_internal || setup_ovs_br_vswitchd || return $ksft_skip
 	run_cmd ip link set ovs_br0 up
 
 	run_cmd ${ns_c} ip link add veth_C-A type veth peer name veth_A-C
@@ -891,7 +979,7 @@ setup_ovs_bridge() {
 	run_cmd ${ns_c} ip link set veth_C-A up
 	run_cmd ${ns_c} ip addr add ${veth4_c_addr}/${veth4_mask} dev veth_C-A
 	run_cmd ${ns_c} ip addr add ${veth6_c_addr}/${veth6_mask} dev veth_C-A
-	run_cmd ovs-vsctl add-port ovs_br0 veth_A-C
+	setup_ovs_add_if veth_A-C
 
 	# Move veth_A-R1 to init
 	run_cmd ${ns_a} ip link set veth_A-R1 netns 1
@@ -922,6 +1010,18 @@ trace() {
 	sleep 1
 }
 
+cleanup_del_ovs_internal() {
+	# squelch the output of the del-if commands since it can be wordy
+	python3 ./openvswitch/ovs-dpctl.py del-if ovs_br0 -d true vxlan_a	>/dev/null	2>&1
+	python3 ./openvswitch/ovs-dpctl.py del-if ovs_br0 -d true geneve_a	>/dev/null	2>&1
+	python3 ./openvswitch/ovs-dpctl.py del-dp ovs_br0			>/dev/null	2>&1
+}
+
+cleanup_del_ovs_vswitchd() {
+	ovs-vsctl --if-exists del-port vxlan_a	2>/dev/null
+	ovs-vsctl --if-exists del-br ovs_br0	2>/dev/null
+}
+
 cleanup() {
 	for pid in ${tcpdump_pids}; do
 		kill ${pid}
@@ -942,8 +1042,8 @@ cleanup() {
 
 	ip link del veth_A-C		2>/dev/null
 	ip link del veth_A-R1		2>/dev/null
-	ovs-vsctl --if-exists del-port vxlan_a	2>/dev/null
-	ovs-vsctl --if-exists del-br ovs_br0	2>/dev/null
+	cleanup_del_ovs_internal
+	cleanup_del_ovs_vswitchd
 	rm -f "$tmpoutfile"
 }
 
@@ -1397,6 +1497,12 @@ test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception() {
 	outer_family=${3}
 	ll_mtu=4000
 
+	if [ "${type}" = "vxlan" ]; then
+		tun_a="vxlan_sys_4789"
+	elif [ "${type}" = "geneve" ]; then
+		tun_a="genev_sys_6081"
+	fi
+
 	if [ ${outer_family} -eq 4 ]; then
 		setup namespaces routing ovs_bridge ovs_${type}4 || return $ksft_skip
 		#                      IPv4 header   UDP header   VXLAN/GENEVE header   Ethernet header
@@ -1407,17 +1513,11 @@ test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception() {
 		exp_mtu=$((${ll_mtu} - 40          - 8          - 8                   - 14))
 	fi
 
-	if [ "${type}" = "vxlan" ]; then
-		tun_a="vxlan_sys_4789"
-	elif [ "${type}" = "geneve" ]; then
-		tun_a="genev_sys_6081"
-	fi
-
-	trace ""        "${tun_a}"  "${ns_b}"  ${type}_b \
+	trace ""        ${type}_a    "${ns_b}"  ${type}_b \
 	      ""        veth_A-R1    "${ns_r1}" veth_R1-A \
 	      "${ns_b}" veth_B-R1    "${ns_r1}" veth_R1-B \
-	      ""        ovs_br0     ""         veth-A-C  \
-	      "${ns_c}" veth_C-A
+	      ""        ovs_br0      ""         veth-A_C  \
+	      "${ns_c}" veth_C-A     ""         "${tun_a}"
 
 	if [ ${family} -eq 4 ]; then
 		ping=ping
@@ -1436,7 +1536,8 @@ test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception() {
 	mtu "${ns_b}"  veth_B-R1 ${ll_mtu}
 	mtu "${ns_r1}" veth_R1-B ${ll_mtu}
 
-	mtu ""        ${tun_a}  $((${ll_mtu} + 1000))
+	mtu ""        ${tun_a}  $((${ll_mtu} + 1000)) 2>/dev/null || \
+		mtu ""        ${type}_a  $((${ll_mtu} + 1000)) 2>/dev/null
 	mtu "${ns_b}" ${type}_b  $((${ll_mtu} + 1000))
 
 	run_cmd ${ns_c} ${ping} -q -M want -i 0.1 -c 20 -s $((${ll_mtu} + 500)) ${dst} || return 1