[PATCH net-next 4/7] selftests: openvswitch: Add support for tunnel() key.

Aaron Conole
2024-06-17T18:02:42Z

This will be used when setting details about the tunnel to use as
transport. There is a difference between the ODP format between tunnel():
the 'key' flag is not actually a flag field, so we don't support it in the
same way that the vswitchd userspace supports displaying it.

Signed-off-by: Aaron Conole <aconole@redhat.com>
---
.../selftests/net/openvswitch/ovs-dpctl.py | 167 +++++++++++++++++-
1 file changed, 166 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py
index 4c235ff07aeb..2f16df2fb16b 100644
--- a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py
+++ b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py
@@ -709,7 +709,7 @@ 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"),
@@ -1269,6 +1269,163 @@ 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"),)

@@ -1277,6 +1434,7 @@ 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),
@@ -1379,6 +1537,13 @@ class ovskey(nla):
lambda x: False,
True,
),
+ (
+ "OVS_KEY_ATTR_TUNNEL",
+ "tunnel",
+ None,
+ False,
+ False,
+ ),
(
"OVS_KEY_ATTR_CT_STATE",
"ct_state",
--
2.45.1