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Diffstat (limited to 'pkg/abi/linux/netlink.go')
-rw-r--r--pkg/abi/linux/netlink.go124
1 files changed, 124 insertions, 0 deletions
diff --git a/pkg/abi/linux/netlink.go b/pkg/abi/linux/netlink.go
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+++ b/pkg/abi/linux/netlink.go
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+// Copyright 2018 The gVisor Authors.
+//
+// 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
+
+// Socket options, from uapi/linux/netlink.h.
+const (
+ NETLINK_ADD_MEMBERSHIP = 1
+ NETLINK_DROP_MEMBERSHIP = 2
+ NETLINK_PKTINFO = 3
+ NETLINK_BROADCAST_ERROR = 4
+ NETLINK_NO_ENOBUFS = 5
+ NETLINK_LISTEN_ALL_NSID = 8
+ NETLINK_LIST_MEMBERSHIPS = 9
+ NETLINK_CAP_ACK = 10
+ NETLINK_EXT_ACK = 11
+ NETLINK_DUMP_STRICT_CHK = 12
+)