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PiperOrigin-RevId: 194583126
Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463

1 files changed, 110 insertions, 0 deletions

diff --git a/pkg/abi/linux/netlink.go b/pkg/abi/linux/netlink.go
new file mode 100644
index 000000000..e823ffa7e
--- /dev/null
+++ b/pkg/abi/linux/netlink.go
@@ -0,0 +1,110 @@
+// Copyright 2018 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package linux
+
+// Netlink protocols, from uapi/linux/netlink.h.
+const (
+	NETLINK_ROUTE          = 0
+	NETLINK_UNUSED         = 1
+	NETLINK_USERSOCK       = 2
+	NETLINK_FIREWALL       = 3
+	NETLINK_SOCK_DIAG      = 4
+	NETLINK_NFLOG          = 5
+	NETLINK_XFRM           = 6
+	NETLINK_SELINUX        = 7
+	NETLINK_ISCSI          = 8
+	NETLINK_AUDIT          = 9
+	NETLINK_FIB_LOOKUP     = 10
+	NETLINK_CONNECTOR      = 11
+	NETLINK_NETFILTER      = 12
+	NETLINK_IP6_FW         = 13
+	NETLINK_DNRTMSG        = 14
+	NETLINK_KOBJECT_UEVENT = 15
+	NETLINK_GENERIC        = 16
+	NETLINK_SCSITRANSPORT  = 18
+	NETLINK_ECRYPTFS       = 19
+	NETLINK_RDMA           = 20
+	NETLINK_CRYPTO         = 21
+)
+
+// SockAddrNetlink is struct sockaddr_nl, from uapi/linux/netlink.h.
+type SockAddrNetlink struct {
+	Family  uint16
+	Padding uint16
+	PortID  uint32
+	Groups  uint32
+}
+
+// SockAddrNetlinkSize is the size of SockAddrNetlink.
+const SockAddrNetlinkSize = 12
+
+// NetlinkMessageHeader is struct nlmsghdr, from uapi/linux/netlink.h.
+type NetlinkMessageHeader struct {
+	Length uint32
+	Type   uint16
+	Flags  uint16
+	Seq    uint32
+	PortID uint32
+}
+
+// NetlinkMessageHeaderSize is the size of NetlinkMessageHeader.
+const NetlinkMessageHeaderSize = 16
+
+// Netlink message header flags, from uapi/linux/netlink.h.
+const (
+	NLM_F_REQUEST   = 0x1
+	NLM_F_MULTI     = 0x2
+	NLM_F_ACK       = 0x4
+	NLM_F_ECHO      = 0x8
+	NLM_F_DUMP_INTR = 0x10
+	NLM_F_ROOT      = 0x100
+	NLM_F_MATCH     = 0x200
+	NLM_F_ATOMIC    = 0x400
+	NLM_F_DUMP      = NLM_F_ROOT | NLM_F_MATCH
+	NLM_F_REPLACE   = 0x100
+	NLM_F_EXCL      = 0x200
+	NLM_F_CREATE    = 0x400
+	NLM_F_APPEND    = 0x800
+)
+
+// Standard netlink message types, from uapi/linux/netlink.h.
+const (
+	NLMSG_NOOP    = 0x1
+	NLMSG_ERROR   = 0x2
+	NLMSG_DONE    = 0x3
+	NLMSG_OVERRUN = 0x4
+
+	// NLMSG_MIN_TYPE is the first value for protocol-level types.
+	NLMSG_MIN_TYPE = 0x10
+)
+
+// NLMSG_ALIGNTO is the alignment of netlink messages, from
+// uapi/linux/netlink.h.
+const NLMSG_ALIGNTO = 4
+
+// NetlinkAttrHeader is the header of a netlink attribute, followed by payload.
+//
+// This is struct nlattr, from uapi/linux/netlink.h.
+type NetlinkAttrHeader struct {
+	Length uint16
+	Type   uint16
+}
+
+// NetlinkAttrHeaderSize is the size of NetlinkAttrHeader.
+const NetlinkAttrHeaderSize = 4
+
+// NLA_ALIGNTO is the alignment of netlink attributes, from
+// uapi/linux/netlink.h.
+const NLA_ALIGNTO = 4