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-rw-r--r--pkg/abi/linux/BUILD4
-rw-r--r--pkg/abi/linux/dev.go3
-rw-r--r--pkg/abi/linux/epoll.go12
-rw-r--r--pkg/abi/linux/epoll_amd64.go27
-rw-r--r--pkg/abi/linux/epoll_arm64.go26
-rw-r--r--pkg/abi/linux/file.go2
-rw-r--r--pkg/abi/linux/file_amd64.go4
-rw-r--r--pkg/abi/linux/file_arm64.go4
-rw-r--r--pkg/abi/linux/fs.go2
-rw-r--r--pkg/abi/linux/ioctl.go26
-rw-r--r--pkg/abi/linux/ioctl_tun.go29
-rw-r--r--pkg/abi/linux/netfilter.go109
-rw-r--r--pkg/abi/linux/signal.go2
-rw-r--r--pkg/abi/linux/socket.go13
-rw-r--r--pkg/abi/linux/time.go8
-rw-r--r--pkg/abi/linux/xattr.go1
16 files changed, 263 insertions, 9 deletions
diff --git a/pkg/abi/linux/BUILD b/pkg/abi/linux/BUILD
index 1f3c0c687..322d1ccc4 100644
--- a/pkg/abi/linux/BUILD
+++ b/pkg/abi/linux/BUILD
@@ -17,6 +17,8 @@ go_library(
"dev.go",
"elf.go",
"epoll.go",
+ "epoll_amd64.go",
+ "epoll_arm64.go",
"errors.go",
"eventfd.go",
"exec.go",
@@ -28,6 +30,7 @@ go_library(
"futex.go",
"inotify.go",
"ioctl.go",
+ "ioctl_tun.go",
"ip.go",
"ipc.go",
"limits.go",
@@ -59,6 +62,7 @@ go_library(
"wait.go",
"xattr.go",
],
+ marshal = True,
visibility = ["//visibility:public"],
deps = [
"//pkg/abi",
diff --git a/pkg/abi/linux/dev.go b/pkg/abi/linux/dev.go
index 421e11256..89f9a793f 100644
--- a/pkg/abi/linux/dev.go
+++ b/pkg/abi/linux/dev.go
@@ -36,6 +36,9 @@ func DecodeDeviceID(rdev uint32) (uint16, uint32) {
//
// See Documentations/devices.txt and uapi/linux/major.h.
const (
+ // MEM_MAJOR is the major device number for "memory" character devices.
+ MEM_MAJOR = 1
+
// TTYAUX_MAJOR is the major device number for alternate TTY devices.
TTYAUX_MAJOR = 5
diff --git a/pkg/abi/linux/epoll.go b/pkg/abi/linux/epoll.go
index 0e881aa3c..1121a1a92 100644
--- a/pkg/abi/linux/epoll.go
+++ b/pkg/abi/linux/epoll.go
@@ -14,12 +14,9 @@
package linux
-// EpollEvent is equivalent to struct epoll_event from epoll(2).
-type EpollEvent struct {
- Events uint32
- Fd int32
- Data int32
-}
+import (
+ "gvisor.dev/gvisor/pkg/binary"
+)
// Event masks.
const (
@@ -60,3 +57,6 @@ const (
EPOLL_CTL_DEL = 0x2
EPOLL_CTL_MOD = 0x3
)
+
+// SizeOfEpollEvent is the size of EpollEvent struct.
+var SizeOfEpollEvent = int(binary.Size(EpollEvent{}))
diff --git a/pkg/abi/linux/epoll_amd64.go b/pkg/abi/linux/epoll_amd64.go
new file mode 100644
index 000000000..34ff18009
--- /dev/null
+++ b/pkg/abi/linux/epoll_amd64.go
@@ -0,0 +1,27 @@
+// Copyright 2019 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
+
+// EpollEvent is equivalent to struct epoll_event from epoll(2).
+//
+// +marshal
+type EpollEvent struct {
+ Events uint32
+ // Linux makes struct epoll_event::data a __u64. We represent it as
+ // [2]int32 because, on amd64, Linux also makes struct epoll_event
+ // __attribute__((packed)), such that there is no padding between Events
+ // and Data.
+ Data [2]int32
+}
diff --git a/pkg/abi/linux/epoll_arm64.go b/pkg/abi/linux/epoll_arm64.go
new file mode 100644
index 000000000..f86c35329
--- /dev/null
+++ b/pkg/abi/linux/epoll_arm64.go
@@ -0,0 +1,26 @@
+// Copyright 2020 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
+
+// EpollEvent is equivalent to struct epoll_event from epoll(2).
+//
+// +marshal
+type EpollEvent struct {
+ Events uint32
+ // Linux makes struct epoll_event a __u64, necessitating 4 bytes of padding
+ // here.
+ _ int32
+ Data [2]int32
+}
diff --git a/pkg/abi/linux/file.go b/pkg/abi/linux/file.go
index c3ab15a4f..e229ac21c 100644
--- a/pkg/abi/linux/file.go
+++ b/pkg/abi/linux/file.go
@@ -241,6 +241,8 @@ const (
)
// Statx represents struct statx.
+//
+// +marshal
type Statx struct {
Mask uint32
Blksize uint32
diff --git a/pkg/abi/linux/file_amd64.go b/pkg/abi/linux/file_amd64.go
index 9d307e840..6b72364ea 100644
--- a/pkg/abi/linux/file_amd64.go
+++ b/pkg/abi/linux/file_amd64.go
@@ -12,6 +12,8 @@
// See the License for the specific language governing permissions and
// limitations under the License.
+// +build amd64
+
package linux
// Constants for open(2).
@@ -23,6 +25,8 @@ const (
)
// Stat represents struct stat.
+//
+// +marshal
type Stat struct {
Dev uint64
Ino uint64
diff --git a/pkg/abi/linux/file_arm64.go b/pkg/abi/linux/file_arm64.go
index 26a54f416..6492c9038 100644
--- a/pkg/abi/linux/file_arm64.go
+++ b/pkg/abi/linux/file_arm64.go
@@ -12,6 +12,8 @@
// See the License for the specific language governing permissions and
// limitations under the License.
+// +build arm64
+
package linux
// Constants for open(2).
@@ -23,6 +25,8 @@ const (
)
// Stat represents struct stat.
+//
+// +marshal
type Stat struct {
Dev uint64
Ino uint64
diff --git a/pkg/abi/linux/fs.go b/pkg/abi/linux/fs.go
index 2c652baa2..158d2db5b 100644
--- a/pkg/abi/linux/fs.go
+++ b/pkg/abi/linux/fs.go
@@ -38,6 +38,8 @@ const (
)
// Statfs is struct statfs, from uapi/asm-generic/statfs.h.
+//
+// +marshal
type Statfs struct {
// Type is one of the filesystem magic values, defined above.
Type uint64
diff --git a/pkg/abi/linux/ioctl.go b/pkg/abi/linux/ioctl.go
index 0e18db9ef..2062e6a4b 100644
--- a/pkg/abi/linux/ioctl.go
+++ b/pkg/abi/linux/ioctl.go
@@ -72,3 +72,29 @@ const (
SIOCGMIIPHY = 0x8947
SIOCGMIIREG = 0x8948
)
+
+// ioctl(2) directions. Used to calculate requests number.
+// Constants from asm-generic/ioctl.h.
+const (
+ _IOC_NONE = 0
+ _IOC_WRITE = 1
+ _IOC_READ = 2
+)
+
+// Constants from asm-generic/ioctl.h.
+const (
+ _IOC_NRBITS = 8
+ _IOC_TYPEBITS = 8
+ _IOC_SIZEBITS = 14
+ _IOC_DIRBITS = 2
+
+ _IOC_NRSHIFT = 0
+ _IOC_TYPESHIFT = _IOC_NRSHIFT + _IOC_NRBITS
+ _IOC_SIZESHIFT = _IOC_TYPESHIFT + _IOC_TYPEBITS
+ _IOC_DIRSHIFT = _IOC_SIZESHIFT + _IOC_SIZEBITS
+)
+
+// IOC outputs the result of _IOC macro in asm-generic/ioctl.h.
+func IOC(dir, typ, nr, size uint32) uint32 {
+ return uint32(dir)<<_IOC_DIRSHIFT | typ<<_IOC_TYPESHIFT | nr<<_IOC_NRSHIFT | size<<_IOC_SIZESHIFT
+}
diff --git a/pkg/abi/linux/ioctl_tun.go b/pkg/abi/linux/ioctl_tun.go
new file mode 100644
index 000000000..c59c9c136
--- /dev/null
+++ b/pkg/abi/linux/ioctl_tun.go
@@ -0,0 +1,29 @@
+// Copyright 2020 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
+
+// ioctl(2) request numbers from linux/if_tun.h
+var (
+ TUNSETIFF = IOC(_IOC_WRITE, 'T', 202, 4)
+ TUNGETIFF = IOC(_IOC_READ, 'T', 210, 4)
+)
+
+// Flags from net/if_tun.h
+const (
+ IFF_TUN = 0x0001
+ IFF_TAP = 0x0002
+ IFF_NO_PI = 0x1000
+ IFF_NOFILTER = 0x1000
+)
diff --git a/pkg/abi/linux/netfilter.go b/pkg/abi/linux/netfilter.go
index 33fcc6c95..bd2e13ba1 100644
--- a/pkg/abi/linux/netfilter.go
+++ b/pkg/abi/linux/netfilter.go
@@ -198,6 +198,13 @@ type XTEntryMatch struct {
// SizeOfXTEntryMatch is the size of an XTEntryMatch.
const SizeOfXTEntryMatch = 32
+// KernelXTEntryMatch is identical to XTEntryMatch, but contains
+// variable-length Data field.
+type KernelXTEntryMatch struct {
+ XTEntryMatch
+ Data []byte
+}
+
// XTEntryTarget holds a target for a rule. For example, it can specify that
// packets matching the rule should DROP, ACCEPT, or use an extension target.
// iptables-extension(8) has a list of possible targets.
@@ -218,11 +225,14 @@ type XTEntryTarget struct {
// SizeOfXTEntryTarget is the size of an XTEntryTarget.
const SizeOfXTEntryTarget = 32
-// XTStandardTarget is a builtin target, one of ACCEPT, DROP, JUMP, QUEUE, or
-// RETURN. It corresponds to struct xt_standard_target in
+// XTStandardTarget is a built-in target, one of ACCEPT, DROP, JUMP, QUEUE,
+// RETURN, or jump. It corresponds to struct xt_standard_target in
// include/uapi/linux/netfilter/x_tables.h.
type XTStandardTarget struct {
- Target XTEntryTarget
+ Target XTEntryTarget
+ // A positive verdict indicates a jump, and is the offset from the
+ // start of the table to jump to. A negative value means one of the
+ // other built-in targets.
Verdict int32
_ [4]byte
}
@@ -340,3 +350,96 @@ func goString(cstring []byte) string {
}
return string(cstring)
}
+
+// XTTCP holds data for matching TCP packets. It corresponds to struct xt_tcp
+// in include/uapi/linux/netfilter/xt_tcpudp.h.
+type XTTCP struct {
+ // SourcePortStart specifies the inclusive start of the range of source
+ // ports to which the matcher applies.
+ SourcePortStart uint16
+
+ // SourcePortEnd specifies the inclusive end of the range of source ports
+ // to which the matcher applies.
+ SourcePortEnd uint16
+
+ // DestinationPortStart specifies the start of the destination port
+ // range to which the matcher applies.
+ DestinationPortStart uint16
+
+ // DestinationPortEnd specifies the end of the destination port
+ // range to which the matcher applies.
+ DestinationPortEnd uint16
+
+ // Option specifies that a particular TCP option must be set.
+ Option uint8
+
+ // FlagMask masks TCP flags when comparing to the FlagCompare byte. It allows
+ // for specification of which flags are important to the matcher.
+ FlagMask uint8
+
+ // FlagCompare, in combination with FlagMask, is used to match only packets
+ // that have certain flags set.
+ FlagCompare uint8
+
+ // InverseFlags flips the meaning of certain fields. See the
+ // TX_TCP_INV_* flags.
+ InverseFlags uint8
+}
+
+// SizeOfXTTCP is the size of an XTTCP.
+const SizeOfXTTCP = 12
+
+// Flags in XTTCP.InverseFlags. Corresponding constants are in
+// include/uapi/linux/netfilter/xt_tcpudp.h.
+const (
+ // Invert the meaning of SourcePortStart/End.
+ XT_TCP_INV_SRCPT = 0x01
+ // Invert the meaning of DestinationPortStart/End.
+ XT_TCP_INV_DSTPT = 0x02
+ // Invert the meaning of FlagCompare.
+ XT_TCP_INV_FLAGS = 0x04
+ // Invert the meaning of Option.
+ XT_TCP_INV_OPTION = 0x08
+ // Enable all flags.
+ XT_TCP_INV_MASK = 0x0F
+)
+
+// XTUDP holds data for matching UDP packets. It corresponds to struct xt_udp
+// in include/uapi/linux/netfilter/xt_tcpudp.h.
+type XTUDP struct {
+ // SourcePortStart is the inclusive start of the range of source ports
+ // to which the matcher applies.
+ SourcePortStart uint16
+
+ // SourcePortEnd is the inclusive end of the range of source ports to
+ // which the matcher applies.
+ SourcePortEnd uint16
+
+ // DestinationPortStart is the inclusive start of the destination port
+ // range to which the matcher applies.
+ DestinationPortStart uint16
+
+ // DestinationPortEnd is the inclusive end of the destination port
+ // range to which the matcher applies.
+ DestinationPortEnd uint16
+
+ // InverseFlags flips the meaning of certain fields. See the
+ // TX_UDP_INV_* flags.
+ InverseFlags uint8
+
+ _ uint8
+}
+
+// SizeOfXTUDP is the size of an XTUDP.
+const SizeOfXTUDP = 10
+
+// Flags in XTUDP.InverseFlags. Corresponding constants are in
+// include/uapi/linux/netfilter/xt_tcpudp.h.
+const (
+ // Invert the meaning of SourcePortStart/End.
+ XT_UDP_INV_SRCPT = 0x01
+ // Invert the meaning of DestinationPortStart/End.
+ XT_UDP_INV_DSTPT = 0x02
+ // Enable all flags.
+ XT_UDP_INV_MASK = 0x03
+)
diff --git a/pkg/abi/linux/signal.go b/pkg/abi/linux/signal.go
index c69b04ea9..1c330e763 100644
--- a/pkg/abi/linux/signal.go
+++ b/pkg/abi/linux/signal.go
@@ -115,6 +115,8 @@ const (
)
// SignalSet is a signal mask with a bit corresponding to each signal.
+//
+// +marshal
type SignalSet uint64
// SignalSetSize is the size in bytes of a SignalSet.
diff --git a/pkg/abi/linux/socket.go b/pkg/abi/linux/socket.go
index 766ee4014..4a14ef691 100644
--- a/pkg/abi/linux/socket.go
+++ b/pkg/abi/linux/socket.go
@@ -411,6 +411,15 @@ type ControlMessageCredentials struct {
GID uint32
}
+// A ControlMessageIPPacketInfo is IP_PKTINFO socket control message.
+//
+// ControlMessageIPPacketInfo represents struct in_pktinfo from linux/in.h.
+type ControlMessageIPPacketInfo struct {
+ NIC int32
+ LocalAddr InetAddr
+ DestinationAddr InetAddr
+}
+
// SizeOfControlMessageCredentials is the binary size of a
// ControlMessageCredentials struct.
var SizeOfControlMessageCredentials = int(binary.Size(ControlMessageCredentials{}))
@@ -431,6 +440,10 @@ const SizeOfControlMessageTOS = 1
// SizeOfControlMessageTClass is the size of an IPV6_TCLASS control message.
const SizeOfControlMessageTClass = 4
+// SizeOfControlMessageIPPacketInfo is the size of an IP_PKTINFO
+// control message.
+const SizeOfControlMessageIPPacketInfo = 12
+
// SCM_MAX_FD is the maximum number of FDs accepted in a single sendmsg call.
// From net/scm.h.
const SCM_MAX_FD = 253
diff --git a/pkg/abi/linux/time.go b/pkg/abi/linux/time.go
index 5c5a58cd4..e6860ed49 100644
--- a/pkg/abi/linux/time.go
+++ b/pkg/abi/linux/time.go
@@ -101,6 +101,8 @@ func NsecToTimeT(nsec int64) TimeT {
}
// Timespec represents struct timespec in <time.h>.
+//
+// +marshal
type Timespec struct {
Sec int64
Nsec int64
@@ -155,6 +157,8 @@ func DurationToTimespec(dur time.Duration) Timespec {
const SizeOfTimeval = 16
// Timeval represents struct timeval in <time.h>.
+//
+// +marshal
type Timeval struct {
Sec int64
Usec int64
@@ -228,6 +232,8 @@ type Tms struct {
type TimerID int32
// StatxTimestamp represents struct statx_timestamp.
+//
+// +marshal
type StatxTimestamp struct {
Sec int64
Nsec uint32
@@ -256,6 +262,8 @@ func NsecToStatxTimestamp(nsec int64) (ts StatxTimestamp) {
}
// Utime represents struct utimbuf used by utimes(2).
+//
+// +marshal
type Utime struct {
Actime int64
Modtime int64
diff --git a/pkg/abi/linux/xattr.go b/pkg/abi/linux/xattr.go
index a3b6406fa..99180b208 100644
--- a/pkg/abi/linux/xattr.go
+++ b/pkg/abi/linux/xattr.go
@@ -18,6 +18,7 @@ package linux
const (
XATTR_NAME_MAX = 255
XATTR_SIZE_MAX = 65536
+ XATTR_LIST_MAX = 65536
XATTR_CREATE = 1
XATTR_REPLACE = 2
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 02:40:33 +0000