foosinn/webhook-rfc2136
1
0
Fork 0
Code Issues 1 Pull requests Projects Releases Packages Wiki Activity

feat(application): inital commit

Browse source
This commit is contained in:
foosinn 2023-03-20 00:36:07 +01:00
commit a82fd88827
724 changed files with 263525 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

27
vendor/golang.org/x/mod/LICENSE generated vendored Normal file
View file

@ -0,0 +1,27 @@
Copyright (c) 2009 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

22
vendor/golang.org/x/mod/PATENTS generated vendored Normal file
View file

@ -0,0 +1,22 @@
Additional IP Rights Grant (Patents)
"This implementation" means the copyrightable works distributed by
Google as part of the Go project.
Google hereby grants to You a perpetual, worldwide, non-exclusive,
no-charge, royalty-free, irrevocable (except as stated in this section)
patent license to make, have made, use, offer to sell, sell, import,
transfer and otherwise run, modify and propagate the contents of this
implementation of Go, where such license applies only to those patent
claims, both currently owned or controlled by Google and acquired in
the future, licensable by Google that are necessarily infringed by this
implementation of Go. This grant does not include claims that would be
infringed only as a consequence of further modification of this
implementation. If you or your agent or exclusive licensee institute or
order or agree to the institution of patent litigation against any
entity (including a cross-claim or counterclaim in a lawsuit) alleging
that this implementation of Go or any code incorporated within this
implementation of Go constitutes direct or contributory patent
infringement, or inducement of patent infringement, then any patent
rights granted to you under this License for this implementation of Go
shall terminate as of the date such litigation is filed.

401
vendor/golang.org/x/mod/semver/semver.go generated vendored Normal file
View file

@ -0,0 +1,401 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package semver implements comparison of semantic version strings.
// In this package, semantic version strings must begin with a leading "v",
// as in "v1.0.0".
//
// The general form of a semantic version string accepted by this package is
//
// vMAJOR[.MINOR[.PATCH[-PRERELEASE][+BUILD]]]
//
// where square brackets indicate optional parts of the syntax;
// MAJOR, MINOR, and PATCH are decimal integers without extra leading zeros;
// PRERELEASE and BUILD are each a series of non-empty dot-separated identifiers
// using only alphanumeric characters and hyphens; and
// all-numeric PRERELEASE identifiers must not have leading zeros.
//
// This package follows Semantic Versioning 2.0.0 (see semver.org)
// with two exceptions. First, it requires the "v" prefix. Second, it recognizes
// vMAJOR and vMAJOR.MINOR (with no prerelease or build suffixes)
// as shorthands for vMAJOR.0.0 and vMAJOR.MINOR.0.
package semver
import "sort"
// parsed returns the parsed form of a semantic version string.
type parsed struct {
major string
minor string
patch string
short string
prerelease string
build string
}
// IsValid reports whether v is a valid semantic version string.
func IsValid(v string) bool {
_, ok := parse(v)
return ok
}
// Canonical returns the canonical formatting of the semantic version v.
// It fills in any missing .MINOR or .PATCH and discards build metadata.
// Two semantic versions compare equal only if their canonical formattings
// are identical strings.
// The canonical invalid semantic version is the empty string.
func Canonical(v string) string {
p, ok := parse(v)
if !ok {
return ""
}
if p.build != "" {
return v[:len(v)-len(p.build)]
}
if p.short != "" {
return v + p.short
}
return v
}
// Major returns the major version prefix of the semantic version v.
// For example, Major("v2.1.0") == "v2".
// If v is an invalid semantic version string, Major returns the empty string.
func Major(v string) string {
pv, ok := parse(v)
if !ok {
return ""
}
return v[:1+len(pv.major)]
}
// MajorMinor returns the major.minor version prefix of the semantic version v.
// For example, MajorMinor("v2.1.0") == "v2.1".
// If v is an invalid semantic version string, MajorMinor returns the empty string.
func MajorMinor(v string) string {
pv, ok := parse(v)
if !ok {
return ""
}
i := 1 + len(pv.major)
if j := i + 1 + len(pv.minor); j <= len(v) && v[i] == '.' && v[i+1:j] == pv.minor {
return v[:j]
}
return v[:i] + "." + pv.minor
}
// Prerelease returns the prerelease suffix of the semantic version v.
// For example, Prerelease("v2.1.0-pre+meta") == "-pre".
// If v is an invalid semantic version string, Prerelease returns the empty string.
func Prerelease(v string) string {
pv, ok := parse(v)
if !ok {
return ""
}
return pv.prerelease
}
// Build returns the build suffix of the semantic version v.
// For example, Build("v2.1.0+meta") == "+meta".
// If v is an invalid semantic version string, Build returns the empty string.
func Build(v string) string {
pv, ok := parse(v)
if !ok {
return ""
}
return pv.build
}
// Compare returns an integer comparing two versions according to
// semantic version precedence.
// The result will be 0 if v == w, -1 if v < w, or +1 if v > w.
//
// An invalid semantic version string is considered less than a valid one.
// All invalid semantic version strings compare equal to each other.
func Compare(v, w string) int {
pv, ok1 := parse(v)
pw, ok2 := parse(w)
if !ok1 && !ok2 {
return 0
}
if !ok1 {
return -1
}
if !ok2 {
return +1
}
if c := compareInt(pv.major, pw.major); c != 0 {
return c
}
if c := compareInt(pv.minor, pw.minor); c != 0 {
return c
}
if c := compareInt(pv.patch, pw.patch); c != 0 {
return c
}
return comparePrerelease(pv.prerelease, pw.prerelease)
}
// Max canonicalizes its arguments and then returns the version string
// that compares greater.
//
// Deprecated: use Compare instead. In most cases, returning a canonicalized
// version is not expected or desired.
func Max(v, w string) string {
v = Canonical(v)
w = Canonical(w)
if Compare(v, w) > 0 {
return v
}
return w
}
// ByVersion implements sort.Interface for sorting semantic version strings.
type ByVersion []string
func (vs ByVersion) Len() int { return len(vs) }
func (vs ByVersion) Swap(i, j int) { vs[i], vs[j] = vs[j], vs[i] }
func (vs ByVersion) Less(i, j int) bool {
cmp := Compare(vs[i], vs[j])
if cmp != 0 {
return cmp < 0
}
return vs[i] < vs[j]
}
// Sort sorts a list of semantic version strings using ByVersion.
func Sort(list []string) {
sort.Sort(ByVersion(list))
}
func parse(v string) (p parsed, ok bool) {
if v == "" || v[0] != 'v' {
return
}
p.major, v, ok = parseInt(v[1:])
if !ok {
return
}
if v == "" {
p.minor = "0"
p.patch = "0"
p.short = ".0.0"
return
}
if v[0] != '.' {
ok = false
return
}
p.minor, v, ok = parseInt(v[1:])
if !ok {
return
}
if v == "" {
p.patch = "0"
p.short = ".0"
return
}
if v[0] != '.' {
ok = false
return
}
p.patch, v, ok = parseInt(v[1:])
if !ok {
return
}
if len(v) > 0 && v[0] == '-' {
p.prerelease, v, ok = parsePrerelease(v)
if !ok {
return
}
}
if len(v) > 0 && v[0] == '+' {
p.build, v, ok = parseBuild(v)
if !ok {
return
}
}
if v != "" {
ok = false
return
}
ok = true
return
}
func parseInt(v string) (t, rest string, ok bool) {
if v == "" {
return
}
if v[0] < '0' || '9' < v[0] {
return
}
i := 1
for i < len(v) && '0' <= v[i] && v[i] <= '9' {
i++
}
if v[0] == '0' && i != 1 {
return
}
return v[:i], v[i:], true
}
func parsePrerelease(v string) (t, rest string, ok bool) {
// "A pre-release version MAY be denoted by appending a hyphen and
// a series of dot separated identifiers immediately following the patch version.
// Identifiers MUST comprise only ASCII alphanumerics and hyphen [0-9A-Za-z-].
// Identifiers MUST NOT be empty. Numeric identifiers MUST NOT include leading zeroes."
if v == "" || v[0] != '-' {
return
}
i := 1
start := 1
for i < len(v) && v[i] != '+' {
if !isIdentChar(v[i]) && v[i] != '.' {
return
}
if v[i] == '.' {
if start == i || isBadNum(v[start:i]) {
return
}
start = i + 1
}
i++
}
if start == i || isBadNum(v[start:i]) {
return
}
return v[:i], v[i:], true
}
func parseBuild(v string) (t, rest string, ok bool) {
if v == "" || v[0] != '+' {
return
}
i := 1
start := 1
for i < len(v) {
if !isIdentChar(v[i]) && v[i] != '.' {
return
}
if v[i] == '.' {
if start == i {
return
}
start = i + 1
}
i++
}
if start == i {
return
}
return v[:i], v[i:], true
}
func isIdentChar(c byte) bool {
return 'A' <= c && c <= 'Z' || 'a' <= c && c <= 'z' || '0' <= c && c <= '9' || c == '-'
}
func isBadNum(v string) bool {
i := 0
for i < len(v) && '0' <= v[i] && v[i] <= '9' {
i++
}
return i == len(v) && i > 1 && v[0] == '0'
}
func isNum(v string) bool {
i := 0
for i < len(v) && '0' <= v[i] && v[i] <= '9' {
i++
}
return i == len(v)
}
func compareInt(x, y string) int {
if x == y {
return 0
}
if len(x) < len(y) {
return -1
}
if len(x) > len(y) {
return +1
}
if x < y {
return -1
} else {
return +1
}
}
func comparePrerelease(x, y string) int {
// "When major, minor, and patch are equal, a pre-release version has
// lower precedence than a normal version.
// Example: 1.0.0-alpha < 1.0.0.
// Precedence for two pre-release versions with the same major, minor,
// and patch version MUST be determined by comparing each dot separated
// identifier from left to right until a difference is found as follows:
// identifiers consisting of only digits are compared numerically and
// identifiers with letters or hyphens are compared lexically in ASCII
// sort order. Numeric identifiers always have lower precedence than
// non-numeric identifiers. A larger set of pre-release fields has a
// higher precedence than a smaller set, if all of the preceding
// identifiers are equal.
// Example: 1.0.0-alpha < 1.0.0-alpha.1 < 1.0.0-alpha.beta <
// 1.0.0-beta < 1.0.0-beta.2 < 1.0.0-beta.11 < 1.0.0-rc.1 < 1.0.0."
if x == y {
return 0
}
if x == "" {
return +1
}
if y == "" {
return -1
}
for x != "" && y != "" {
x = x[1:] // skip - or .
y = y[1:] // skip - or .
var dx, dy string
dx, x = nextIdent(x)
dy, y = nextIdent(y)
if dx != dy {
ix := isNum(dx)
iy := isNum(dy)
if ix != iy {
if ix {
return -1
} else {
return +1
}
}
if ix {
if len(dx) < len(dy) {
return -1
}
if len(dx) > len(dy) {
return +1
}
}
if dx < dy {
return -1
} else {
return +1
}
}
}
if x == "" {
return -1
} else {
return +1
}
}
func nextIdent(x string) (dx, rest string) {
i := 0
for i < len(x) && x[i] != '.' {
i++
}
return x[:i], x[i:]
}

27
vendor/golang.org/x/net/LICENSE generated vendored Normal file
View file

@ -0,0 +1,27 @@
Copyright (c) 2009 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

22
vendor/golang.org/x/net/PATENTS generated vendored Normal file
View file

@ -0,0 +1,22 @@
Additional IP Rights Grant (Patents)
"This implementation" means the copyrightable works distributed by
Google as part of the Go project.
Google hereby grants to You a perpetual, worldwide, non-exclusive,
no-charge, royalty-free, irrevocable (except as stated in this section)
patent license to make, have made, use, offer to sell, sell, import,
transfer and otherwise run, modify and propagate the contents of this
implementation of Go, where such license applies only to those patent
claims, both currently owned or controlled by Google and acquired in
the future, licensable by Google that are necessarily infringed by this
implementation of Go. This grant does not include claims that would be
infringed only as a consequence of further modification of this
implementation. If you or your agent or exclusive licensee institute or
order or agree to the institution of patent litigation against any
entity (including a cross-claim or counterclaim in a lawsuit) alleging
that this implementation of Go or any code incorporated within this
implementation of Go constitutes direct or contributory patent
infringement, or inducement of patent infringement, then any patent
rights granted to you under this License for this implementation of Go
shall terminate as of the date such litigation is filed.

41
vendor/golang.org/x/net/bpf/asm.go generated vendored Normal file
View file

@ -0,0 +1,41 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package bpf
import "fmt"
// Assemble converts insts into raw instructions suitable for loading
// into a BPF virtual machine.
//
// Currently, no optimization is attempted, the assembled program flow
// is exactly as provided.
func Assemble(insts []Instruction) ([]RawInstruction, error) {
ret := make([]RawInstruction, len(insts))
var err error
for i, inst := range insts {
ret[i], err = inst.Assemble()
if err != nil {
return nil, fmt.Errorf("assembling instruction %d: %s", i+1, err)
}
}
return ret, nil
}
// Disassemble attempts to parse raw back into
// Instructions. Unrecognized RawInstructions are assumed to be an
// extension not implemented by this package, and are passed through
// unchanged to the output. The allDecoded value reports whether insts
// contains no RawInstructions.
func Disassemble(raw []RawInstruction) (insts []Instruction, allDecoded bool) {
insts = make([]Instruction, len(raw))
allDecoded = true
for i, r := range raw {
insts[i] = r.Disassemble()
if _, ok := insts[i].(RawInstruction); ok {
allDecoded = false
}
}
return insts, allDecoded
}

222
vendor/golang.org/x/net/bpf/constants.go generated vendored Normal file
View file

@ -0,0 +1,222 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package bpf
// A Register is a register of the BPF virtual machine.
type Register uint16
const (
// RegA is the accumulator register. RegA is always the
// destination register of ALU operations.
RegA Register = iota
// RegX is the indirection register, used by LoadIndirect
// operations.
RegX
)
// An ALUOp is an arithmetic or logic operation.
type ALUOp uint16
// ALU binary operation types.
const (
ALUOpAdd ALUOp = iota << 4
ALUOpSub
ALUOpMul
ALUOpDiv
ALUOpOr
ALUOpAnd
ALUOpShiftLeft
ALUOpShiftRight
aluOpNeg // Not exported because it's the only unary ALU operation, and gets its own instruction type.
ALUOpMod
ALUOpXor
)
// A JumpTest is a comparison operator used in conditional jumps.
type JumpTest uint16
// Supported operators for conditional jumps.
// K can be RegX for JumpIfX
const (
// K == A
JumpEqual JumpTest = iota
// K != A
JumpNotEqual
// K > A
JumpGreaterThan
// K < A
JumpLessThan
// K >= A
JumpGreaterOrEqual
// K <= A
JumpLessOrEqual
// K & A != 0
JumpBitsSet
// K & A == 0
JumpBitsNotSet
)
// An Extension is a function call provided by the kernel that
// performs advanced operations that are expensive or impossible
// within the BPF virtual machine.
//
// Extensions are only implemented by the Linux kernel.
//
// TODO: should we prune this list? Some of these extensions seem
// either broken or near-impossible to use correctly, whereas other
// (len, random, ifindex) are quite useful.
type Extension int
// Extension functions available in the Linux kernel.
const (
// extOffset is the negative maximum number of instructions used
// to load instructions by overloading the K argument.
extOffset = -0x1000
// ExtLen returns the length of the packet.
ExtLen Extension = 1
// ExtProto returns the packet's L3 protocol type.
ExtProto Extension = 0
// ExtType returns the packet's type (skb->pkt_type in the kernel)
//
// TODO: better documentation. How nice an API do we want to
// provide for these esoteric extensions?
ExtType Extension = 4
// ExtPayloadOffset returns the offset of the packet payload, or
// the first protocol header that the kernel does not know how to
// parse.
ExtPayloadOffset Extension = 52
// ExtInterfaceIndex returns the index of the interface on which
// the packet was received.
ExtInterfaceIndex Extension = 8
// ExtNetlinkAttr returns the netlink attribute of type X at
// offset A.
ExtNetlinkAttr Extension = 12
// ExtNetlinkAttrNested returns the nested netlink attribute of
// type X at offset A.
ExtNetlinkAttrNested Extension = 16
// ExtMark returns the packet's mark value.
ExtMark Extension = 20
// ExtQueue returns the packet's assigned hardware queue.
ExtQueue Extension = 24
// ExtLinkLayerType returns the packet's hardware address type
// (e.g. Ethernet, Infiniband).
ExtLinkLayerType Extension = 28
// ExtRXHash returns the packets receive hash.
//
// TODO: figure out what this rxhash actually is.
ExtRXHash Extension = 32
// ExtCPUID returns the ID of the CPU processing the current
// packet.
ExtCPUID Extension = 36
// ExtVLANTag returns the packet's VLAN tag.
ExtVLANTag Extension = 44
// ExtVLANTagPresent returns non-zero if the packet has a VLAN
// tag.
//
// TODO: I think this might be a lie: it reads bit 0x1000 of the
// VLAN header, which changed meaning in recent revisions of the
// spec - this extension may now return meaningless information.
ExtVLANTagPresent Extension = 48
// ExtVLANProto returns 0x8100 if the frame has a VLAN header,
// 0x88a8 if the frame has a "Q-in-Q" double VLAN header, or some
// other value if no VLAN information is present.
ExtVLANProto Extension = 60
// ExtRand returns a uniformly random uint32.
ExtRand Extension = 56
)
// The following gives names to various bit patterns used in opcode construction.
const (
opMaskCls uint16 = 0x7
// opClsLoad masks
opMaskLoadDest = 0x01
opMaskLoadWidth = 0x18
opMaskLoadMode = 0xe0
// opClsALU & opClsJump
opMaskOperand = 0x08
opMaskOperator = 0xf0
)
const (
// +---------------+-----------------+---+---+---+
// | AddrMode (3b) | LoadWidth (2b) | 0 | 0 | 0 |
// +---------------+-----------------+---+---+---+
opClsLoadA uint16 = iota
// +---------------+-----------------+---+---+---+
// | AddrMode (3b) | LoadWidth (2b) | 0 | 0 | 1 |
// +---------------+-----------------+---+---+---+
opClsLoadX
// +---+---+---+---+---+---+---+---+
// | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
// +---+---+---+---+---+---+---+---+
opClsStoreA
// +---+---+---+---+---+---+---+---+
// | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
// +---+---+---+---+---+---+---+---+
opClsStoreX
// +---------------+-----------------+---+---+---+
// | Operator (4b) | OperandSrc (1b) | 1 | 0 | 0 |
// +---------------+-----------------+---+---+---+
opClsALU
// +-----------------------------+---+---+---+---+
// | TestOperator (4b) | 0 | 1 | 0 | 1 |
// +-----------------------------+---+---+---+---+
opClsJump
// +---+-------------------------+---+---+---+---+
// | 0 | 0 | 0 | RetSrc (1b) | 0 | 1 | 1 | 0 |
// +---+-------------------------+---+---+---+---+
opClsReturn
// +---+-------------------------+---+---+---+---+
// | 0 | 0 | 0 | TXAorTAX (1b) | 0 | 1 | 1 | 1 |
// +---+-------------------------+---+---+---+---+
opClsMisc
)
const (
opAddrModeImmediate uint16 = iota << 5
opAddrModeAbsolute
opAddrModeIndirect
opAddrModeScratch
opAddrModePacketLen // actually an extension, not an addressing mode.
opAddrModeMemShift
)
const (
opLoadWidth4 uint16 = iota << 3
opLoadWidth2
opLoadWidth1
)
// Operand for ALU and Jump instructions
type opOperand uint16
// Supported operand sources.
const (
opOperandConstant opOperand = iota << 3
opOperandX
)
// An jumpOp is a conditional jump condition.
type jumpOp uint16
// Supported jump conditions.
const (
opJumpAlways jumpOp = iota << 4
opJumpEqual
opJumpGT
opJumpGE
opJumpSet
)
const (
opRetSrcConstant uint16 = iota << 4
opRetSrcA
)
const (
opMiscTAX = 0x00
opMiscTXA = 0x80
)

80
vendor/golang.org/x/net/bpf/doc.go generated vendored Normal file
View file

@ -0,0 +1,80 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
/*
Package bpf implements marshaling and unmarshaling of programs for the
Berkeley Packet Filter virtual machine, and provides a Go implementation
of the virtual machine.
BPF's main use is to specify a packet filter for network taps, so that
the kernel doesn't have to expensively copy every packet it sees to
userspace. However, it's been repurposed to other areas where running
user code in-kernel is needed. For example, Linux's seccomp uses BPF
to apply security policies to system calls. For simplicity, this
documentation refers only to packets, but other uses of BPF have their
own data payloads.
BPF programs run in a restricted virtual machine. It has almost no
access to kernel functions, and while conditional branches are
allowed, they can only jump forwards, to guarantee that there are no
infinite loops.
# The virtual machine
The BPF VM is an accumulator machine. Its main register, called
register A, is an implicit source and destination in all arithmetic
and logic operations. The machine also has 16 scratch registers for
temporary storage, and an indirection register (register X) for
indirect memory access. All registers are 32 bits wide.
Each run of a BPF program is given one packet, which is placed in the
VM's read-only "main memory". LoadAbsolute and LoadIndirect
instructions can fetch up to 32 bits at a time into register A for
examination.
The goal of a BPF program is to produce and return a verdict (uint32),
which tells the kernel what to do with the packet. In the context of
packet filtering, the returned value is the number of bytes of the
packet to forward to userspace, or 0 to ignore the packet. Other
contexts like seccomp define their own return values.
In order to simplify programs, attempts to read past the end of the
packet terminate the program execution with a verdict of 0 (ignore
packet). This means that the vast majority of BPF programs don't need
to do any explicit bounds checking.
In addition to the bytes of the packet, some BPF programs have access
to extensions, which are essentially calls to kernel utility
functions. Currently, the only extensions supported by this package
are the Linux packet filter extensions.
# Examples
This packet filter selects all ARP packets.
bpf.Assemble([]bpf.Instruction{
// Load "EtherType" field from the ethernet header.
bpf.LoadAbsolute{Off: 12, Size: 2},
// Skip over the next instruction if EtherType is not ARP.
bpf.JumpIf{Cond: bpf.JumpNotEqual, Val: 0x0806, SkipTrue: 1},
// Verdict is "send up to 4k of the packet to userspace."
bpf.RetConstant{Val: 4096},
// Verdict is "ignore packet."
bpf.RetConstant{Val: 0},
})
This packet filter captures a random 1% sample of traffic.
bpf.Assemble([]bpf.Instruction{
// Get a 32-bit random number from the Linux kernel.
bpf.LoadExtension{Num: bpf.ExtRand},
// 1% dice roll?
bpf.JumpIf{Cond: bpf.JumpLessThan, Val: 2^32/100, SkipFalse: 1},
// Capture.
bpf.RetConstant{Val: 4096},
// Ignore.
bpf.RetConstant{Val: 0},
})
*/
package bpf // import "golang.org/x/net/bpf"

726
vendor/golang.org/x/net/bpf/instructions.go generated vendored Normal file
View file

@ -0,0 +1,726 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package bpf
import "fmt"
// An Instruction is one instruction executed by the BPF virtual
// machine.
type Instruction interface {
// Assemble assembles the Instruction into a RawInstruction.
Assemble() (RawInstruction, error)
}
// A RawInstruction is a raw BPF virtual machine instruction.
type RawInstruction struct {
// Operation to execute.
Op uint16
// For conditional jump instructions, the number of instructions
// to skip if the condition is true/false.
Jt uint8
Jf uint8
// Constant parameter. The meaning depends on the Op.
K uint32
}
// Assemble implements the Instruction Assemble method.
func (ri RawInstruction) Assemble() (RawInstruction, error) { return ri, nil }
// Disassemble parses ri into an Instruction and returns it. If ri is
// not recognized by this package, ri itself is returned.
func (ri RawInstruction) Disassemble() Instruction {
switch ri.Op & opMaskCls {
case opClsLoadA, opClsLoadX:
reg := Register(ri.Op & opMaskLoadDest)
sz := 0
switch ri.Op & opMaskLoadWidth {
case opLoadWidth4:
sz = 4
case opLoadWidth2:
sz = 2
case opLoadWidth1:
sz = 1
default:
return ri
}
switch ri.Op & opMaskLoadMode {
case opAddrModeImmediate:
if sz != 4 {
return ri
}
return LoadConstant{Dst: reg, Val: ri.K}
case opAddrModeScratch:
if sz != 4 || ri.K > 15 {
return ri
}
return LoadScratch{Dst: reg, N: int(ri.K)}
case opAddrModeAbsolute:
if ri.K > extOffset+0xffffffff {
return LoadExtension{Num: Extension(-extOffset + ri.K)}
}
return LoadAbsolute{Size: sz, Off: ri.K}
case opAddrModeIndirect:
return LoadIndirect{Size: sz, Off: ri.K}
case opAddrModePacketLen:
if sz != 4 {
return ri
}
return LoadExtension{Num: ExtLen}
case opAddrModeMemShift:
return LoadMemShift{Off: ri.K}
default:
return ri
}
case opClsStoreA:
if ri.Op != opClsStoreA || ri.K > 15 {
return ri
}
return StoreScratch{Src: RegA, N: int(ri.K)}
case opClsStoreX:
if ri.Op != opClsStoreX || ri.K > 15 {
return ri
}
return StoreScratch{Src: RegX, N: int(ri.K)}
case opClsALU:
switch op := ALUOp(ri.Op & opMaskOperator); op {
case ALUOpAdd, ALUOpSub, ALUOpMul, ALUOpDiv, ALUOpOr, ALUOpAnd, ALUOpShiftLeft, ALUOpShiftRight, ALUOpMod, ALUOpXor:
switch operand := opOperand(ri.Op & opMaskOperand); operand {
case opOperandX:
return ALUOpX{Op: op}
case opOperandConstant:
return ALUOpConstant{Op: op, Val: ri.K}
default:
return ri
}
case aluOpNeg:
return NegateA{}
default:
return ri
}
case opClsJump:
switch op := jumpOp(ri.Op & opMaskOperator); op {
case opJumpAlways:
return Jump{Skip: ri.K}
case opJumpEqual, opJumpGT, opJumpGE, opJumpSet:
cond, skipTrue, skipFalse := jumpOpToTest(op, ri.Jt, ri.Jf)
switch operand := opOperand(ri.Op & opMaskOperand); operand {
case opOperandX:
return JumpIfX{Cond: cond, SkipTrue: skipTrue, SkipFalse: skipFalse}
case opOperandConstant:
return JumpIf{Cond: cond, Val: ri.K, SkipTrue: skipTrue, SkipFalse: skipFalse}
default:
return ri
}
default:
return ri
}
case opClsReturn:
switch ri.Op {
case opClsReturn | opRetSrcA:
return RetA{}
case opClsReturn | opRetSrcConstant:
return RetConstant{Val: ri.K}
default:
return ri
}
case opClsMisc:
switch ri.Op {
case opClsMisc | opMiscTAX:
return TAX{}
case opClsMisc | opMiscTXA:
return TXA{}
default:
return ri
}
default:
panic("unreachable") // switch is exhaustive on the bit pattern
}
}
func jumpOpToTest(op jumpOp, skipTrue uint8, skipFalse uint8) (JumpTest, uint8, uint8) {
var test JumpTest
// Decode "fake" jump conditions that don't appear in machine code
// Ensures the Assemble -> Disassemble stage recreates the same instructions
// See https://github.com/golang/go/issues/18470
if skipTrue == 0 {
switch op {
case opJumpEqual:
test = JumpNotEqual
case opJumpGT:
test = JumpLessOrEqual
case opJumpGE:
test = JumpLessThan
case opJumpSet:
test = JumpBitsNotSet
}
return test, skipFalse, 0
}
switch op {
case opJumpEqual:
test = JumpEqual
case opJumpGT:
test = JumpGreaterThan
case opJumpGE:
test = JumpGreaterOrEqual
case opJumpSet:
test = JumpBitsSet
}
return test, skipTrue, skipFalse
}
// LoadConstant loads Val into register Dst.
type LoadConstant struct {
Dst Register
Val uint32
}
// Assemble implements the Instruction Assemble method.
func (a LoadConstant) Assemble() (RawInstruction, error) {
return assembleLoad(a.Dst, 4, opAddrModeImmediate, a.Val)
}
// String returns the instruction in assembler notation.
func (a LoadConstant) String() string {
switch a.Dst {
case RegA:
return fmt.Sprintf("ld #%d", a.Val)
case RegX:
return fmt.Sprintf("ldx #%d", a.Val)
default:
return fmt.Sprintf("unknown instruction: %#v", a)
}
}
// LoadScratch loads scratch[N] into register Dst.
type LoadScratch struct {
Dst Register
N int // 0-15
}
// Assemble implements the Instruction Assemble method.
func (a LoadScratch) Assemble() (RawInstruction, error) {
if a.N < 0 || a.N > 15 {
return RawInstruction{}, fmt.Errorf("invalid scratch slot %d", a.N)
}
return assembleLoad(a.Dst, 4, opAddrModeScratch, uint32(a.N))
}
// String returns the instruction in assembler notation.
func (a LoadScratch) String() string {
switch a.Dst {
case RegA:
return fmt.Sprintf("ld M[%d]", a.N)
case RegX:
return fmt.Sprintf("ldx M[%d]", a.N)
default:
return fmt.Sprintf("unknown instruction: %#v", a)
}
}
// LoadAbsolute loads packet[Off:Off+Size] as an integer value into
// register A.
type LoadAbsolute struct {
Off uint32
Size int // 1, 2 or 4
}
// Assemble implements the Instruction Assemble method.
func (a LoadAbsolute) Assemble() (RawInstruction, error) {
return assembleLoad(RegA, a.Size, opAddrModeAbsolute, a.Off)
}
// String returns the instruction in assembler notation.
func (a LoadAbsolute) String() string {
switch a.Size {
case 1: // byte
return fmt.Sprintf("ldb [%d]", a.Off)
case 2: // half word
return fmt.Sprintf("ldh [%d]", a.Off)
case 4: // word
if a.Off > extOffset+0xffffffff {
return LoadExtension{Num: Extension(a.Off + 0x1000)}.String()
}
return fmt.Sprintf("ld [%d]", a.Off)
default:
return fmt.Sprintf("unknown instruction: %#v", a)
}
}
// LoadIndirect loads packet[X+Off:X+Off+Size] as an integer value
// into register A.
type LoadIndirect struct {
Off uint32
Size int // 1, 2 or 4
}
// Assemble implements the Instruction Assemble method.
func (a LoadIndirect) Assemble() (RawInstruction, error) {
return assembleLoad(RegA, a.Size, opAddrModeIndirect, a.Off)
}
// String returns the instruction in assembler notation.
func (a LoadIndirect) String() string {
switch a.Size {
case 1: // byte
return fmt.Sprintf("ldb [x + %d]", a.Off)
case 2: // half word
return fmt.Sprintf("ldh [x + %d]", a.Off)
case 4: // word
return fmt.Sprintf("ld [x + %d]", a.Off)
default:
return fmt.Sprintf("unknown instruction: %#v", a)
}
}
// LoadMemShift multiplies the first 4 bits of the byte at packet[Off]
// by 4 and stores the result in register X.
//
// This instruction is mainly useful to load into X the length of an
// IPv4 packet header in a single instruction, rather than have to do
// the arithmetic on the header's first byte by hand.
type LoadMemShift struct {
Off uint32
}
// Assemble implements the Instruction Assemble method.
func (a LoadMemShift) Assemble() (RawInstruction, error) {
return assembleLoad(RegX, 1, opAddrModeMemShift, a.Off)
}
// String returns the instruction in assembler notation.
func (a LoadMemShift) String() string {
return fmt.Sprintf("ldx 4*([%d]&0xf)", a.Off)
}
// LoadExtension invokes a linux-specific extension and stores the
// result in register A.
type LoadExtension struct {
Num Extension
}
// Assemble implements the Instruction Assemble method.
func (a LoadExtension) Assemble() (RawInstruction, error) {
if a.Num == ExtLen {
return assembleLoad(RegA, 4, opAddrModePacketLen, 0)
}
return assembleLoad(RegA, 4, opAddrModeAbsolute, uint32(extOffset+a.Num))
}
// String returns the instruction in assembler notation.
func (a LoadExtension) String() string {
switch a.Num {
case ExtLen:
return "ld #len"
case ExtProto:
return "ld #proto"
case ExtType:
return "ld #type"
case ExtPayloadOffset:
return "ld #poff"
case ExtInterfaceIndex:
return "ld #ifidx"
case ExtNetlinkAttr:
return "ld #nla"
case ExtNetlinkAttrNested:
return "ld #nlan"
case ExtMark:
return "ld #mark"
case ExtQueue:
return "ld #queue"
case ExtLinkLayerType:
return "ld #hatype"
case ExtRXHash:
return "ld #rxhash"
case ExtCPUID:
return "ld #cpu"
case ExtVLANTag:
return "ld #vlan_tci"
case ExtVLANTagPresent:
return "ld #vlan_avail"
case ExtVLANProto:
return "ld #vlan_tpid"
case ExtRand:
return "ld #rand"
default:
return fmt.Sprintf("unknown instruction: %#v", a)
}
}
// StoreScratch stores register Src into scratch[N].
type StoreScratch struct {
Src Register
N int // 0-15
}
// Assemble implements the Instruction Assemble method.
func (a StoreScratch) Assemble() (RawInstruction, error) {
if a.N < 0 || a.N > 15 {
return RawInstruction{}, fmt.Errorf("invalid scratch slot %d", a.N)
}
var op uint16
switch a.Src {
case RegA:
op = opClsStoreA
case RegX:
op = opClsStoreX
default:
return RawInstruction{}, fmt.Errorf("invalid source register %v", a.Src)
}
return RawInstruction{
Op: op,
K: uint32(a.N),
}, nil
}
// String returns the instruction in assembler notation.
func (a StoreScratch) String() string {
switch a.Src {
case RegA:
return fmt.Sprintf("st M[%d]", a.N)
case RegX:
return fmt.Sprintf("stx M[%d]", a.N)
default:
return fmt.Sprintf("unknown instruction: %#v", a)
}
}
// ALUOpConstant executes A = A <Op> Val.
type ALUOpConstant struct {
Op ALUOp
Val uint32
}
// Assemble implements the Instruction Assemble method.
func (a ALUOpConstant) Assemble() (RawInstruction, error) {
return RawInstruction{
Op: opClsALU | uint16(opOperandConstant) | uint16(a.Op),
K: a.Val,
}, nil
}
// String returns the instruction in assembler notation.
func (a ALUOpConstant) String() string {
switch a.Op {
case ALUOpAdd:
return fmt.Sprintf("add #%d", a.Val)
case ALUOpSub:
return fmt.Sprintf("sub #%d", a.Val)
case ALUOpMul:
return fmt.Sprintf("mul #%d", a.Val)
case ALUOpDiv:
return fmt.Sprintf("div #%d", a.Val)
case ALUOpMod:
return fmt.Sprintf("mod #%d", a.Val)
case ALUOpAnd:
return fmt.Sprintf("and #%d", a.Val)
case ALUOpOr:
return fmt.Sprintf("or #%d", a.Val)
case ALUOpXor:
return fmt.Sprintf("xor #%d", a.Val)
case ALUOpShiftLeft:
return fmt.Sprintf("lsh #%d", a.Val)
case ALUOpShiftRight:
return fmt.Sprintf("rsh #%d", a.Val)
default:
return fmt.Sprintf("unknown instruction: %#v", a)
}
}
// ALUOpX executes A = A <Op> X
type ALUOpX struct {
Op ALUOp
}
// Assemble implements the Instruction Assemble method.
func (a ALUOpX) Assemble() (RawInstruction, error) {
return RawInstruction{
Op: opClsALU | uint16(opOperandX) | uint16(a.Op),
}, nil
}
// String returns the instruction in assembler notation.
func (a ALUOpX) String() string {
switch a.Op {
case ALUOpAdd:
return "add x"
case ALUOpSub:
return "sub x"
case ALUOpMul:
return "mul x"
case ALUOpDiv:
return "div x"
case ALUOpMod:
return "mod x"
case ALUOpAnd:
return "and x"
case ALUOpOr:
return "or x"
case ALUOpXor:
return "xor x"
case ALUOpShiftLeft:
return "lsh x"
case ALUOpShiftRight:
return "rsh x"
default:
return fmt.Sprintf("unknown instruction: %#v", a)
}
}
// NegateA executes A = -A.
type NegateA struct{}
// Assemble implements the Instruction Assemble method.
func (a NegateA) Assemble() (RawInstruction, error) {
return RawInstruction{
Op: opClsALU | uint16(aluOpNeg),
}, nil
}
// String returns the instruction in assembler notation.
func (a NegateA) String() string {
return fmt.Sprintf("neg")
}
// Jump skips the following Skip instructions in the program.
type Jump struct {
Skip uint32
}
// Assemble implements the Instruction Assemble method.
func (a Jump) Assemble() (RawInstruction, error) {
return RawInstruction{
Op: opClsJump | uint16(opJumpAlways),
K: a.Skip,
}, nil
}
// String returns the instruction in assembler notation.
func (a Jump) String() string {
return fmt.Sprintf("ja %d", a.Skip)
}
// JumpIf skips the following Skip instructions in the program if A
// <Cond> Val is true.
type JumpIf struct {
Cond JumpTest
Val uint32
SkipTrue uint8
SkipFalse uint8
}
// Assemble implements the Instruction Assemble method.
func (a JumpIf) Assemble() (RawInstruction, error) {
return jumpToRaw(a.Cond, opOperandConstant, a.Val, a.SkipTrue, a.SkipFalse)
}
// String returns the instruction in assembler notation.
func (a JumpIf) String() string {
return jumpToString(a.Cond, fmt.Sprintf("#%d", a.Val), a.SkipTrue, a.SkipFalse)
}
// JumpIfX skips the following Skip instructions in the program if A
// <Cond> X is true.
type JumpIfX struct {
Cond JumpTest
SkipTrue uint8
SkipFalse uint8
}
// Assemble implements the Instruction Assemble method.
func (a JumpIfX) Assemble() (RawInstruction, error) {
return jumpToRaw(a.Cond, opOperandX, 0, a.SkipTrue, a.SkipFalse)
}
// String returns the instruction in assembler notation.
func (a JumpIfX) String() string {
return jumpToString(a.Cond, "x", a.SkipTrue, a.SkipFalse)
}
// jumpToRaw assembles a jump instruction into a RawInstruction
func jumpToRaw(test JumpTest, operand opOperand, k uint32, skipTrue, skipFalse uint8) (RawInstruction, error) {
var (
cond jumpOp
flip bool
)
switch test {
case JumpEqual:
cond = opJumpEqual
case JumpNotEqual:
cond, flip = opJumpEqual, true
case JumpGreaterThan:
cond = opJumpGT
case JumpLessThan:
cond, flip = opJumpGE, true
case JumpGreaterOrEqual:
cond = opJumpGE
case JumpLessOrEqual:
cond, flip = opJumpGT, true
case JumpBitsSet:
cond = opJumpSet
case JumpBitsNotSet:
cond, flip = opJumpSet, true
default:
return RawInstruction{}, fmt.Errorf("unknown JumpTest %v", test)
}
jt, jf := skipTrue, skipFalse
if flip {
jt, jf = jf, jt
}
return RawInstruction{
Op: opClsJump | uint16(cond) | uint16(operand),
Jt: jt,
Jf: jf,
K: k,
}, nil
}
// jumpToString converts a jump instruction to assembler notation
func jumpToString(cond JumpTest, operand string, skipTrue, skipFalse uint8) string {
switch cond {
// K == A
case JumpEqual:
return conditionalJump(operand, skipTrue, skipFalse, "jeq", "jneq")
// K != A
case JumpNotEqual:
return fmt.Sprintf("jneq %s,%d", operand, skipTrue)
// K > A
case JumpGreaterThan:
return conditionalJump(operand, skipTrue, skipFalse, "jgt", "jle")
// K < A
case JumpLessThan:
return fmt.Sprintf("jlt %s,%d", operand, skipTrue)
// K >= A
case JumpGreaterOrEqual:
return conditionalJump(operand, skipTrue, skipFalse, "jge", "jlt")
// K <= A
case JumpLessOrEqual:
return fmt.Sprintf("jle %s,%d", operand, skipTrue)
// K & A != 0
case JumpBitsSet:
if skipFalse > 0 {
return fmt.Sprintf("jset %s,%d,%d", operand, skipTrue, skipFalse)
}
return fmt.Sprintf("jset %s,%d", operand, skipTrue)
// K & A == 0, there is no assembler instruction for JumpBitNotSet, use JumpBitSet and invert skips
case JumpBitsNotSet:
return jumpToString(JumpBitsSet, operand, skipFalse, skipTrue)
default:
return fmt.Sprintf("unknown JumpTest %#v", cond)
}
}
func conditionalJump(operand string, skipTrue, skipFalse uint8, positiveJump, negativeJump string) string {
if skipTrue > 0 {
if skipFalse > 0 {
return fmt.Sprintf("%s %s,%d,%d", positiveJump, operand, skipTrue, skipFalse)
}
return fmt.Sprintf("%s %s,%d", positiveJump, operand, skipTrue)
}
return fmt.Sprintf("%s %s,%d", negativeJump, operand, skipFalse)
}
// RetA exits the BPF program, returning the value of register A.
type RetA struct{}
// Assemble implements the Instruction Assemble method.
func (a RetA) Assemble() (RawInstruction, error) {
return RawInstruction{
Op: opClsReturn | opRetSrcA,
}, nil
}
// String returns the instruction in assembler notation.
func (a RetA) String() string {
return fmt.Sprintf("ret a")
}
// RetConstant exits the BPF program, returning a constant value.
type RetConstant struct {
Val uint32
}
// Assemble implements the Instruction Assemble method.
func (a RetConstant) Assemble() (RawInstruction, error) {
return RawInstruction{
Op: opClsReturn | opRetSrcConstant,
K: a.Val,
}, nil
}
// String returns the instruction in assembler notation.
func (a RetConstant) String() string {
return fmt.Sprintf("ret #%d", a.Val)
}
// TXA copies the value of register X to register A.
type TXA struct{}
// Assemble implements the Instruction Assemble method.
func (a TXA) Assemble() (RawInstruction, error) {
return RawInstruction{
Op: opClsMisc | opMiscTXA,
}, nil
}
// String returns the instruction in assembler notation.
func (a TXA) String() string {
return fmt.Sprintf("txa")
}
// TAX copies the value of register A to register X.
type TAX struct{}
// Assemble implements the Instruction Assemble method.
func (a TAX) Assemble() (RawInstruction, error) {
return RawInstruction{
Op: opClsMisc | opMiscTAX,
}, nil
}
// String returns the instruction in assembler notation.
func (a TAX) String() string {
return fmt.Sprintf("tax")
}
func assembleLoad(dst Register, loadSize int, mode uint16, k uint32) (RawInstruction, error) {
var (
cls uint16
sz uint16
)
switch dst {
case RegA:
cls = opClsLoadA
case RegX:
cls = opClsLoadX
default:
return RawInstruction{}, fmt.Errorf("invalid target register %v", dst)
}
switch loadSize {
case 1:
sz = opLoadWidth1
case 2:
sz = opLoadWidth2
case 4:
sz = opLoadWidth4
default:
return RawInstruction{}, fmt.Errorf("invalid load byte length %d", sz)
}
return RawInstruction{
Op: cls | sz | mode,
K: k,
}, nil
}

10
vendor/golang.org/x/net/bpf/setter.go generated vendored Normal file
View file

@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package bpf
// A Setter is a type which can attach a compiled BPF filter to itself.
type Setter interface {
SetBPF(filter []RawInstruction) error
}

150
vendor/golang.org/x/net/bpf/vm.go generated vendored Normal file
View file

@ -0,0 +1,150 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package bpf
import (
"errors"
"fmt"
)
// A VM is an emulated BPF virtual machine.
type VM struct {
filter []Instruction
}
// NewVM returns a new VM using the input BPF program.
func NewVM(filter []Instruction) (*VM, error) {
if len(filter) == 0 {
return nil, errors.New("one or more Instructions must be specified")
}
for i, ins := range filter {
check := len(filter) - (i + 1)
switch ins := ins.(type) {
// Check for out-of-bounds jumps in instructions
case Jump:
if check <= int(ins.Skip) {
return nil, fmt.Errorf("cannot jump %d instructions; jumping past program bounds", ins.Skip)
}
case JumpIf:
if check <= int(ins.SkipTrue) {
return nil, fmt.Errorf("cannot jump %d instructions in true case; jumping past program bounds", ins.SkipTrue)
}
if check <= int(ins.SkipFalse) {
return nil, fmt.Errorf("cannot jump %d instructions in false case; jumping past program bounds", ins.SkipFalse)
}
case JumpIfX:
if check <= int(ins.SkipTrue) {
return nil, fmt.Errorf("cannot jump %d instructions in true case; jumping past program bounds", ins.SkipTrue)
}
if check <= int(ins.SkipFalse) {
return nil, fmt.Errorf("cannot jump %d instructions in false case; jumping past program bounds", ins.SkipFalse)
}
// Check for division or modulus by zero
case ALUOpConstant:
if ins.Val != 0 {
break
}
switch ins.Op {
case ALUOpDiv, ALUOpMod:
return nil, errors.New("cannot divide by zero using ALUOpConstant")
}
// Check for unknown extensions
case LoadExtension:
switch ins.Num {
case ExtLen:
default:
return nil, fmt.Errorf("extension %d not implemented", ins.Num)
}
}
}
// Make sure last instruction is a return instruction
switch filter[len(filter)-1].(type) {
case RetA, RetConstant:
default:
return nil, errors.New("BPF program must end with RetA or RetConstant")
}
// Though our VM works using disassembled instructions, we
// attempt to assemble the input filter anyway to ensure it is compatible
// with an operating system VM.
_, err := Assemble(filter)
return &VM{
filter: filter,
}, err
}
// Run runs the VM's BPF program against the input bytes.
// Run returns the number of bytes accepted by the BPF program, and any errors
// which occurred while processing the program.
func (v *VM) Run(in []byte) (int, error) {
var (
// Registers of the virtual machine
regA uint32
regX uint32
regScratch [16]uint32
// OK is true if the program should continue processing the next
// instruction, or false if not, causing the loop to break
ok = true
)
// TODO(mdlayher): implement:
// - NegateA:
// - would require a change from uint32 registers to int32
// registers
// TODO(mdlayher): add interop tests that check signedness of ALU
// operations against kernel implementation, and make sure Go
// implementation matches behavior
for i := 0; i < len(v.filter) && ok; i++ {
ins := v.filter[i]
switch ins := ins.(type) {
case ALUOpConstant:
regA = aluOpConstant(ins, regA)
case ALUOpX:
regA, ok = aluOpX(ins, regA, regX)
case Jump:
i += int(ins.Skip)
case JumpIf:
jump := jumpIf(ins, regA)
i += jump
case JumpIfX:
jump := jumpIfX(ins, regA, regX)
i += jump
case LoadAbsolute:
regA, ok = loadAbsolute(ins, in)
case LoadConstant:
regA, regX = loadConstant(ins, regA, regX)
case LoadExtension:
regA = loadExtension(ins, in)
case LoadIndirect:
regA, ok = loadIndirect(ins, in, regX)
case LoadMemShift:
regX, ok = loadMemShift(ins, in)
case LoadScratch:
regA, regX = loadScratch(ins, regScratch, regA, regX)
case RetA:
return int(regA), nil
case RetConstant:
return int(ins.Val), nil
case StoreScratch:
regScratch = storeScratch(ins, regScratch, regA, regX)
case TAX:
regX = regA
case TXA:
regA = regX
default:
return 0, fmt.Errorf("unknown Instruction at index %d: %T", i, ins)
}
}
return 0, nil
}

182
vendor/golang.org/x/net/bpf/vm_instructions.go generated vendored Normal file
View file

@ -0,0 +1,182 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package bpf
import (
"encoding/binary"
"fmt"
)
func aluOpConstant(ins ALUOpConstant, regA uint32) uint32 {
return aluOpCommon(ins.Op, regA, ins.Val)
}
func aluOpX(ins ALUOpX, regA uint32, regX uint32) (uint32, bool) {
// Guard against division or modulus by zero by terminating
// the program, as the OS BPF VM does
if regX == 0 {
switch ins.Op {
case ALUOpDiv, ALUOpMod:
return 0, false
}
}
return aluOpCommon(ins.Op, regA, regX), true
}
func aluOpCommon(op ALUOp, regA uint32, value uint32) uint32 {
switch op {
case ALUOpAdd:
return regA + value
case ALUOpSub:
return regA - value
case ALUOpMul:
return regA * value
case ALUOpDiv:
// Division by zero not permitted by NewVM and aluOpX checks
return regA / value
case ALUOpOr:
return regA | value
case ALUOpAnd:
return regA & value
case ALUOpShiftLeft:
return regA << value
case ALUOpShiftRight:
return regA >> value
case ALUOpMod:
// Modulus by zero not permitted by NewVM and aluOpX checks
return regA % value
case ALUOpXor:
return regA ^ value
default:
return regA
}
}
func jumpIf(ins JumpIf, regA uint32) int {
return jumpIfCommon(ins.Cond, ins.SkipTrue, ins.SkipFalse, regA, ins.Val)
}
func jumpIfX(ins JumpIfX, regA uint32, regX uint32) int {
return jumpIfCommon(ins.Cond, ins.SkipTrue, ins.SkipFalse, regA, regX)
}
func jumpIfCommon(cond JumpTest, skipTrue, skipFalse uint8, regA uint32, value uint32) int {
var ok bool
switch cond {
case JumpEqual:
ok = regA == value
case JumpNotEqual:
ok = regA != value
case JumpGreaterThan:
ok = regA > value
case JumpLessThan:
ok = regA < value
case JumpGreaterOrEqual:
ok = regA >= value
case JumpLessOrEqual:
ok = regA <= value
case JumpBitsSet:
ok = (regA & value) != 0
case JumpBitsNotSet:
ok = (regA & value) == 0
}
if ok {
return int(skipTrue)
}
return int(skipFalse)
}
func loadAbsolute(ins LoadAbsolute, in []byte) (uint32, bool) {
offset := int(ins.Off)
size := ins.Size
return loadCommon(in, offset, size)
}
func loadConstant(ins LoadConstant, regA uint32, regX uint32) (uint32, uint32) {
switch ins.Dst {
case RegA:
regA = ins.Val
case RegX:
regX = ins.Val
}
return regA, regX
}
func loadExtension(ins LoadExtension, in []byte) uint32 {
switch ins.Num {
case ExtLen:
return uint32(len(in))
default:
panic(fmt.Sprintf("unimplemented extension: %d", ins.Num))
}
}
func loadIndirect(ins LoadIndirect, in []byte, regX uint32) (uint32, bool) {
offset := int(ins.Off) + int(regX)
size := ins.Size
return loadCommon(in, offset, size)
}
func loadMemShift(ins LoadMemShift, in []byte) (uint32, bool) {
offset := int(ins.Off)
// Size of LoadMemShift is always 1 byte
if !inBounds(len(in), offset, 1) {
return 0, false
}
// Mask off high 4 bits and multiply low 4 bits by 4
return uint32(in[offset]&0x0f) * 4, true
}
func inBounds(inLen int, offset int, size int) bool {
return offset+size <= inLen
}
func loadCommon(in []byte, offset int, size int) (uint32, bool) {
if !inBounds(len(in), offset, size) {
return 0, false
}
switch size {
case 1:
return uint32(in[offset]), true
case 2:
return uint32(binary.BigEndian.Uint16(in[offset : offset+size])), true
case 4:
return uint32(binary.BigEndian.Uint32(in[offset : offset+size])), true
default:
panic(fmt.Sprintf("invalid load size: %d", size))
}
}
func loadScratch(ins LoadScratch, regScratch [16]uint32, regA uint32, regX uint32) (uint32, uint32) {
switch ins.Dst {
case RegA:
regA = regScratch[ins.N]
case RegX:
regX = regScratch[ins.N]
}
return regA, regX
}
func storeScratch(ins StoreScratch, regScratch [16]uint32, regA uint32, regX uint32) [16]uint32 {
switch ins.Src {
case RegA:
regScratch[ins.N] = regA
case RegX:
regScratch[ins.N] = regX
}
return regScratch
}

223
vendor/golang.org/x/net/internal/iana/const.go generated vendored Normal file
View file

@ -0,0 +1,223 @@
// go generate gen.go
// Code generated by the command above; DO NOT EDIT.
// Package iana provides protocol number resources managed by the Internet Assigned Numbers Authority (IANA).
package iana // import "golang.org/x/net/internal/iana"
// Differentiated Services Field Codepoints (DSCP), Updated: 2018-05-04
const (
DiffServCS0 = 0x00 // CS0
DiffServCS1 = 0x20 // CS1
DiffServCS2 = 0x40 // CS2
DiffServCS3 = 0x60 // CS3
DiffServCS4 = 0x80 // CS4
DiffServCS5 = 0xa0 // CS5
DiffServCS6 = 0xc0 // CS6
DiffServCS7 = 0xe0 // CS7
DiffServAF11 = 0x28 // AF11
DiffServAF12 = 0x30 // AF12
DiffServAF13 = 0x38 // AF13
DiffServAF21 = 0x48 // AF21
DiffServAF22 = 0x50 // AF22
DiffServAF23 = 0x58 // AF23
DiffServAF31 = 0x68 // AF31
DiffServAF32 = 0x70 // AF32
DiffServAF33 = 0x78 // AF33
DiffServAF41 = 0x88 // AF41
DiffServAF42 = 0x90 // AF42
DiffServAF43 = 0x98 // AF43
DiffServEF = 0xb8 // EF
DiffServVOICEADMIT = 0xb0 // VOICE-ADMIT
NotECNTransport = 0x00 // Not-ECT (Not ECN-Capable Transport)
ECNTransport1 = 0x01 // ECT(1) (ECN-Capable Transport(1))
ECNTransport0 = 0x02 // ECT(0) (ECN-Capable Transport(0))
CongestionExperienced = 0x03 // CE (Congestion Experienced)
)
// Protocol Numbers, Updated: 2017-10-13
const (
ProtocolIP = 0 // IPv4 encapsulation, pseudo protocol number
ProtocolHOPOPT = 0 // IPv6 Hop-by-Hop Option
ProtocolICMP = 1 // Internet Control Message
ProtocolIGMP = 2 // Internet Group Management
ProtocolGGP = 3 // Gateway-to-Gateway
ProtocolIPv4 = 4 // IPv4 encapsulation
ProtocolST = 5 // Stream
ProtocolTCP = 6 // Transmission Control
ProtocolCBT = 7 // CBT
ProtocolEGP = 8 // Exterior Gateway Protocol
ProtocolIGP = 9 // any private interior gateway (used by Cisco for their IGRP)
ProtocolBBNRCCMON = 10 // BBN RCC Monitoring
ProtocolNVPII = 11 // Network Voice Protocol
ProtocolPUP = 12 // PUP
ProtocolEMCON = 14 // EMCON
ProtocolXNET = 15 // Cross Net Debugger
ProtocolCHAOS = 16 // Chaos
ProtocolUDP = 17 // User Datagram
ProtocolMUX = 18 // Multiplexing
ProtocolDCNMEAS = 19 // DCN Measurement Subsystems
ProtocolHMP = 20 // Host Monitoring
ProtocolPRM = 21 // Packet Radio Measurement
ProtocolXNSIDP = 22 // XEROX NS IDP
ProtocolTRUNK1 = 23 // Trunk-1
ProtocolTRUNK2 = 24 // Trunk-2
ProtocolLEAF1 = 25 // Leaf-1
ProtocolLEAF2 = 26 // Leaf-2
ProtocolRDP = 27 // Reliable Data Protocol
ProtocolIRTP = 28 // Internet Reliable Transaction
ProtocolISOTP4 = 29 // ISO Transport Protocol Class 4
ProtocolNETBLT = 30 // Bulk Data Transfer Protocol
ProtocolMFENSP = 31 // MFE Network Services Protocol
ProtocolMERITINP = 32 // MERIT Internodal Protocol
ProtocolDCCP = 33 // Datagram Congestion Control Protocol
Protocol3PC = 34 // Third Party Connect Protocol
ProtocolIDPR = 35 // Inter-Domain Policy Routing Protocol
ProtocolXTP = 36 // XTP
ProtocolDDP = 37 // Datagram Delivery Protocol
ProtocolIDPRCMTP = 38 // IDPR Control Message Transport Proto
ProtocolTPPP = 39 // TP++ Transport Protocol
ProtocolIL = 40 // IL Transport Protocol
ProtocolIPv6 = 41 // IPv6 encapsulation
ProtocolSDRP = 42 // Source Demand Routing Protocol
ProtocolIPv6Route = 43 // Routing Header for IPv6
ProtocolIPv6Frag = 44 // Fragment Header for IPv6
ProtocolIDRP = 45 // Inter-Domain Routing Protocol
ProtocolRSVP = 46 // Reservation Protocol
ProtocolGRE = 47 // Generic Routing Encapsulation
ProtocolDSR = 48 // Dynamic Source Routing Protocol
ProtocolBNA = 49 // BNA
ProtocolESP = 50 // Encap Security Payload
ProtocolAH = 51 // Authentication Header
ProtocolINLSP = 52 // Integrated Net Layer Security TUBA
ProtocolNARP = 54 // NBMA Address Resolution Protocol
ProtocolMOBILE = 55 // IP Mobility
ProtocolTLSP = 56 // Transport Layer Security Protocol using Kryptonet key management
ProtocolSKIP = 57 // SKIP
ProtocolIPv6ICMP = 58 // ICMP for IPv6
ProtocolIPv6NoNxt = 59 // No Next Header for IPv6
ProtocolIPv6Opts = 60 // Destination Options for IPv6
ProtocolCFTP = 62 // CFTP
ProtocolSATEXPAK = 64 // SATNET and Backroom EXPAK
ProtocolKRYPTOLAN = 65 // Kryptolan
ProtocolRVD = 66 // MIT Remote Virtual Disk Protocol
ProtocolIPPC = 67 // Internet Pluribus Packet Core
ProtocolSATMON = 69 // SATNET Monitoring
ProtocolVISA = 70 // VISA Protocol
ProtocolIPCV = 71 // Internet Packet Core Utility
ProtocolCPNX = 72 // Computer Protocol Network Executive
ProtocolCPHB = 73 // Computer Protocol Heart Beat
ProtocolWSN = 74 // Wang Span Network
ProtocolPVP = 75 // Packet Video Protocol
ProtocolBRSATMON = 76 // Backroom SATNET Monitoring
ProtocolSUNND = 77 // SUN ND PROTOCOL-Temporary
ProtocolWBMON = 78 // WIDEBAND Monitoring
ProtocolWBEXPAK = 79 // WIDEBAND EXPAK
ProtocolISOIP = 80 // ISO Internet Protocol
ProtocolVMTP = 81 // VMTP
ProtocolSECUREVMTP = 82 // SECURE-VMTP
ProtocolVINES = 83 // VINES
ProtocolTTP = 84 // Transaction Transport Protocol
ProtocolIPTM = 84 // Internet Protocol Traffic Manager
ProtocolNSFNETIGP = 85 // NSFNET-IGP
ProtocolDGP = 86 // Dissimilar Gateway Protocol
ProtocolTCF = 87 // TCF
ProtocolEIGRP = 88 // EIGRP
ProtocolOSPFIGP = 89 // OSPFIGP
ProtocolSpriteRPC = 90 // Sprite RPC Protocol
ProtocolLARP = 91 // Locus Address Resolution Protocol
ProtocolMTP = 92 // Multicast Transport Protocol
ProtocolAX25 = 93 // AX.25 Frames
ProtocolIPIP = 94 // IP-within-IP Encapsulation Protocol
ProtocolSCCSP = 96 // Semaphore Communications Sec. Pro.
ProtocolETHERIP = 97 // Ethernet-within-IP Encapsulation
ProtocolENCAP = 98 // Encapsulation Header
ProtocolGMTP = 100 // GMTP
ProtocolIFMP = 101 // Ipsilon Flow Management Protocol
ProtocolPNNI = 102 // PNNI over IP
ProtocolPIM = 103 // Protocol Independent Multicast
ProtocolARIS = 104 // ARIS
ProtocolSCPS = 105 // SCPS
ProtocolQNX = 106 // QNX
ProtocolAN = 107 // Active Networks
ProtocolIPComp = 108 // IP Payload Compression Protocol
ProtocolSNP = 109 // Sitara Networks Protocol
ProtocolCompaqPeer = 110 // Compaq Peer Protocol
ProtocolIPXinIP = 111 // IPX in IP
ProtocolVRRP = 112 // Virtual Router Redundancy Protocol
ProtocolPGM = 113 // PGM Reliable Transport Protocol
ProtocolL2TP = 115 // Layer Two Tunneling Protocol
ProtocolDDX = 116 // D-II Data Exchange (DDX)
ProtocolIATP = 117 // Interactive Agent Transfer Protocol
ProtocolSTP = 118 // Schedule Transfer Protocol
ProtocolSRP = 119 // SpectraLink Radio Protocol
ProtocolUTI = 120 // UTI
ProtocolSMP = 121 // Simple Message Protocol
ProtocolPTP = 123 // Performance Transparency Protocol
ProtocolISIS = 124 // ISIS over IPv4
ProtocolFIRE = 125 // FIRE
ProtocolCRTP = 126 // Combat Radio Transport Protocol
ProtocolCRUDP = 127 // Combat Radio User Datagram
ProtocolSSCOPMCE = 128 // SSCOPMCE
ProtocolIPLT = 129 // IPLT
ProtocolSPS = 130 // Secure Packet Shield
ProtocolPIPE = 131 // Private IP Encapsulation within IP
ProtocolSCTP = 132 // Stream Control Transmission Protocol
ProtocolFC = 133 // Fibre Channel
ProtocolRSVPE2EIGNORE = 134 // RSVP-E2E-IGNORE
ProtocolMobilityHeader = 135 // Mobility Header
ProtocolUDPLite = 136 // UDPLite
ProtocolMPLSinIP = 137 // MPLS-in-IP
ProtocolMANET = 138 // MANET Protocols
ProtocolHIP = 139 // Host Identity Protocol
ProtocolShim6 = 140 // Shim6 Protocol
ProtocolWESP = 141 // Wrapped Encapsulating Security Payload
ProtocolROHC = 142 // Robust Header Compression
ProtocolReserved = 255 // Reserved
)
// Address Family Numbers, Updated: 2018-04-02
const (
AddrFamilyIPv4 = 1 // IP (IP version 4)
AddrFamilyIPv6 = 2 // IP6 (IP version 6)
AddrFamilyNSAP = 3 // NSAP
AddrFamilyHDLC = 4 // HDLC (8-bit multidrop)
AddrFamilyBBN1822 = 5 // BBN 1822
AddrFamily802 = 6 // 802 (includes all 802 media plus Ethernet "canonical format")
AddrFamilyE163 = 7 // E.163
AddrFamilyE164 = 8 // E.164 (SMDS, Frame Relay, ATM)
AddrFamilyF69 = 9 // F.69 (Telex)
AddrFamilyX121 = 10 // X.121 (X.25, Frame Relay)
AddrFamilyIPX = 11 // IPX
AddrFamilyAppletalk = 12 // Appletalk
AddrFamilyDecnetIV = 13 // Decnet IV
AddrFamilyBanyanVines = 14 // Banyan Vines
AddrFamilyE164withSubaddress = 15 // E.164 with NSAP format subaddress
AddrFamilyDNS = 16 // DNS (Domain Name System)
AddrFamilyDistinguishedName = 17 // Distinguished Name
AddrFamilyASNumber = 18 // AS Number
AddrFamilyXTPoverIPv4 = 19 // XTP over IP version 4
AddrFamilyXTPoverIPv6 = 20 // XTP over IP version 6
AddrFamilyXTPnativemodeXTP = 21 // XTP native mode XTP
AddrFamilyFibreChannelWorldWidePortName = 22 // Fibre Channel World-Wide Port Name
AddrFamilyFibreChannelWorldWideNodeName = 23 // Fibre Channel World-Wide Node Name
AddrFamilyGWID = 24 // GWID
AddrFamilyL2VPN = 25 // AFI for L2VPN information
AddrFamilyMPLSTPSectionEndpointID = 26 // MPLS-TP Section Endpoint Identifier
AddrFamilyMPLSTPLSPEndpointID = 27 // MPLS-TP LSP Endpoint Identifier
AddrFamilyMPLSTPPseudowireEndpointID = 28 // MPLS-TP Pseudowire Endpoint Identifier
AddrFamilyMTIPv4 = 29 // MT IP: Multi-Topology IP version 4
AddrFamilyMTIPv6 = 30 // MT IPv6: Multi-Topology IP version 6
AddrFamilyEIGRPCommonServiceFamily = 16384 // EIGRP Common Service Family
AddrFamilyEIGRPIPv4ServiceFamily = 16385 // EIGRP IPv4 Service Family
AddrFamilyEIGRPIPv6ServiceFamily = 16386 // EIGRP IPv6 Service Family
AddrFamilyLISPCanonicalAddressFormat = 16387 // LISP Canonical Address Format (LCAF)
AddrFamilyBGPLS = 16388 // BGP-LS
AddrFamily48bitMAC = 16389 // 48-bit MAC
AddrFamily64bitMAC = 16390 // 64-bit MAC
AddrFamilyOUI = 16391 // OUI
AddrFamilyMACFinal24bits = 16392 // MAC/24
AddrFamilyMACFinal40bits = 16393 // MAC/40
AddrFamilyIPv6Initial64bits = 16394 // IPv6/64
AddrFamilyRBridgePortID = 16395 // RBridge Port ID
AddrFamilyTRILLNickname = 16396 // TRILL Nickname
)

12
vendor/golang.org/x/net/internal/socket/cmsghdr.go generated vendored Normal file
View file

@ -0,0 +1,12 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
package socket
func (h *cmsghdr) len() int { return int(h.Len) }
func (h *cmsghdr) lvl() int { return int(h.Level) }
func (h *cmsghdr) typ() int { return int(h.Type) }

14
vendor/golang.org/x/net/internal/socket/cmsghdr_bsd.go generated vendored Normal file
View file

@ -0,0 +1,14 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || netbsd || openbsd
// +build aix darwin dragonfly freebsd netbsd openbsd
package socket
func (h *cmsghdr) set(l, lvl, typ int) {
h.Len = uint32(l)
h.Level = int32(lvl)
h.Type = int32(typ)
}

15
vendor/golang.org/x/net/internal/socket/cmsghdr_linux_32bit.go generated vendored Normal file
View file

@ -0,0 +1,15 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (arm || mips || mipsle || 386 || ppc) && linux
// +build arm mips mipsle 386 ppc
// +build linux
package socket
func (h *cmsghdr) set(l, lvl, typ int) {
h.Len = uint32(l)
h.Level = int32(lvl)
h.Type = int32(typ)
}

15
vendor/golang.org/x/net/internal/socket/cmsghdr_linux_64bit.go generated vendored Normal file
View file

@ -0,0 +1,15 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (arm64 || amd64 || loong64 || ppc64 || ppc64le || mips64 || mips64le || riscv64 || s390x) && linux
// +build arm64 amd64 loong64 ppc64 ppc64le mips64 mips64le riscv64 s390x
// +build linux
package socket
func (h *cmsghdr) set(l, lvl, typ int) {
h.Len = uint64(l)
h.Level = int32(lvl)
h.Type = int32(typ)
}

14
vendor/golang.org/x/net/internal/socket/cmsghdr_solaris_64bit.go generated vendored Normal file
View file

@ -0,0 +1,14 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build amd64 && solaris
// +build amd64,solaris
package socket
func (h *cmsghdr) set(l, lvl, typ int) {
h.Len = uint32(l)
h.Level = int32(lvl)
h.Type = int32(typ)
}

28
vendor/golang.org/x/net/internal/socket/cmsghdr_stub.go generated vendored Normal file
View file

@ -0,0 +1,28 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !zos
// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!zos
package socket
func controlHeaderLen() int {
return 0
}
func controlMessageLen(dataLen int) int {
return 0
}
func controlMessageSpace(dataLen int) int {
return 0
}
type cmsghdr struct{}
func (h *cmsghdr) len() int { return 0 }
func (h *cmsghdr) lvl() int { return 0 }
func (h *cmsghdr) typ() int { return 0 }
func (h *cmsghdr) set(l, lvl, typ int) {}

22
vendor/golang.org/x/net/internal/socket/cmsghdr_unix.go generated vendored Normal file
View file

@ -0,0 +1,22 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
package socket
import "golang.org/x/sys/unix"
func controlHeaderLen() int {
return unix.CmsgLen(0)
}
func controlMessageLen(dataLen int) int {
return unix.CmsgLen(dataLen)
}
func controlMessageSpace(dataLen int) int {
return unix.CmsgSpace(dataLen)
}

11
vendor/golang.org/x/net/internal/socket/cmsghdr_zos_s390x.go generated vendored Normal file
View file

@ -0,0 +1,11 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
func (h *cmsghdr) set(l, lvl, typ int) {
h.Len = int32(l)
h.Level = int32(lvl)
h.Type = int32(typ)
}

26
vendor/golang.org/x/net/internal/socket/complete_dontwait.go generated vendored Normal file
View file

@ -0,0 +1,26 @@
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
package socket
import (
"syscall"
)
// ioComplete checks the flags and result of a syscall, to be used as return
// value in a syscall.RawConn.Read or Write callback.
func ioComplete(flags int, operr error) bool {
if flags&syscall.MSG_DONTWAIT != 0 {
// Caller explicitly said don't wait, so always return immediately.
return true
}
if operr == syscall.EAGAIN || operr == syscall.EWOULDBLOCK {
// No data available, block for I/O and try again.
return false
}
return true
}

22
vendor/golang.org/x/net/internal/socket/complete_nodontwait.go generated vendored Normal file
View file

@ -0,0 +1,22 @@
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || windows || zos
// +build aix windows zos
package socket
import (
"syscall"
)
// ioComplete checks the flags and result of a syscall, to be used as return
// value in a syscall.RawConn.Read or Write callback.
func ioComplete(flags int, operr error) bool {
if operr == syscall.EAGAIN || operr == syscall.EWOULDBLOCK {
// No data available, block for I/O and try again.
return false
}
return true
}

8
vendor/golang.org/x/net/internal/socket/empty.s generated vendored Normal file
View file

@ -0,0 +1,8 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build darwin && go1.12
// +build darwin,go1.12
// This exists solely so we can linkname in symbols from syscall.

32
vendor/golang.org/x/net/internal/socket/error_unix.go generated vendored Normal file
View file

@ -0,0 +1,32 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
package socket
import "syscall"
var (
errEAGAIN error = syscall.EAGAIN
errEINVAL error = syscall.EINVAL
errENOENT error = syscall.ENOENT
)
// errnoErr returns common boxed Errno values, to prevent allocations
// at runtime.
func errnoErr(errno syscall.Errno) error {
switch errno {
case 0:
return nil
case syscall.EAGAIN:
return errEAGAIN
case syscall.EINVAL:
return errEINVAL
case syscall.ENOENT:
return errENOENT
}
return errno
}

26
vendor/golang.org/x/net/internal/socket/error_windows.go generated vendored Normal file
View file

@ -0,0 +1,26 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import "syscall"
var (
errERROR_IO_PENDING error = syscall.ERROR_IO_PENDING
errEINVAL error = syscall.EINVAL
)
// errnoErr returns common boxed Errno values, to prevent allocations
// at runtime.
func errnoErr(errno syscall.Errno) error {
switch errno {
case 0:
return nil
case syscall.ERROR_IO_PENDING:
return errERROR_IO_PENDING
case syscall.EINVAL:
return errEINVAL
}
return errno
}

20
vendor/golang.org/x/net/internal/socket/iovec_32bit.go generated vendored Normal file
View file

@ -0,0 +1,20 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (arm || mips || mipsle || 386 || ppc) && (darwin || dragonfly || freebsd || linux || netbsd || openbsd)
// +build arm mips mipsle 386 ppc
// +build darwin dragonfly freebsd linux netbsd openbsd
package socket
import "unsafe"
func (v *iovec) set(b []byte) {
l := len(b)
if l == 0 {
return
}
v.Base = (*byte)(unsafe.Pointer(&b[0]))
v.Len = uint32(l)
}

20
vendor/golang.org/x/net/internal/socket/iovec_64bit.go generated vendored Normal file
View file

@ -0,0 +1,20 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (arm64 || amd64 || loong64 || ppc64 || ppc64le || mips64 || mips64le || riscv64 || s390x) && (aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || zos)
// +build arm64 amd64 loong64 ppc64 ppc64le mips64 mips64le riscv64 s390x
// +build aix darwin dragonfly freebsd linux netbsd openbsd zos
package socket
import "unsafe"
func (v *iovec) set(b []byte) {
l := len(b)
if l == 0 {
return
}
v.Base = (*byte)(unsafe.Pointer(&b[0]))
v.Len = uint64(l)
}

19
vendor/golang.org/x/net/internal/socket/iovec_solaris_64bit.go generated vendored Normal file
View file

@ -0,0 +1,19 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build amd64 && solaris
// +build amd64,solaris
package socket
import "unsafe"
func (v *iovec) set(b []byte) {
l := len(b)
if l == 0 {
return
}
v.Base = (*int8)(unsafe.Pointer(&b[0]))
v.Len = uint64(l)
}

12
vendor/golang.org/x/net/internal/socket/iovec_stub.go generated vendored Normal file
View file

@ -0,0 +1,12 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !zos
// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!zos
package socket
type iovec struct{}
func (v *iovec) set(b []byte) {}

22
vendor/golang.org/x/net/internal/socket/mmsghdr_stub.go generated vendored Normal file
View file

@ -0,0 +1,22 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !aix && !linux && !netbsd
// +build !aix,!linux,!netbsd
package socket
import "net"
type mmsghdr struct{}
type mmsghdrs []mmsghdr
func (hs mmsghdrs) pack(ms []Message, parseFn func([]byte, string) (net.Addr, error), marshalFn func(net.Addr) []byte) error {
return nil
}
func (hs mmsghdrs) unpack(ms []Message, parseFn func([]byte, string) (net.Addr, error), hint string) error {
return nil
}

196
vendor/golang.org/x/net/internal/socket/mmsghdr_unix.go generated vendored Normal file
View file

@ -0,0 +1,196 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || linux || netbsd
// +build aix linux netbsd
package socket
import (
"net"
"os"
"sync"
"syscall"
)
type mmsghdrs []mmsghdr
func (hs mmsghdrs) unpack(ms []Message, parseFn func([]byte, string) (net.Addr, error), hint string) error {
for i := range hs {
ms[i].N = int(hs[i].Len)
ms[i].NN = hs[i].Hdr.controllen()
ms[i].Flags = hs[i].Hdr.flags()
if parseFn != nil {
var err error
ms[i].Addr, err = parseFn(hs[i].Hdr.name(), hint)
if err != nil {
return err
}
}
}
return nil
}
// mmsghdrsPacker packs Message-slices into mmsghdrs (re-)using pre-allocated buffers.
type mmsghdrsPacker struct {
// hs are the pre-allocated mmsghdrs.
hs mmsghdrs
// sockaddrs is the pre-allocated buffer for the Hdr.Name buffers.
// We use one large buffer for all messages and slice it up.
sockaddrs []byte
// vs are the pre-allocated iovecs.
// We allocate one large buffer for all messages and slice it up. This allows to reuse the buffer
// if the number of buffers per message is distributed differently between calls.
vs []iovec
}
func (p *mmsghdrsPacker) prepare(ms []Message) {
n := len(ms)
if n <= cap(p.hs) {
p.hs = p.hs[:n]
} else {
p.hs = make(mmsghdrs, n)
}
if n*sizeofSockaddrInet6 <= cap(p.sockaddrs) {
p.sockaddrs = p.sockaddrs[:n*sizeofSockaddrInet6]
} else {
p.sockaddrs = make([]byte, n*sizeofSockaddrInet6)
}
nb := 0
for _, m := range ms {
nb += len(m.Buffers)
}
if nb <= cap(p.vs) {
p.vs = p.vs[:nb]
} else {
p.vs = make([]iovec, nb)
}
}
func (p *mmsghdrsPacker) pack(ms []Message, parseFn func([]byte, string) (net.Addr, error), marshalFn func(net.Addr, []byte) int) mmsghdrs {
p.prepare(ms)
hs := p.hs
vsRest := p.vs
saRest := p.sockaddrs
for i := range hs {
nvs := len(ms[i].Buffers)
vs := vsRest[:nvs]
vsRest = vsRest[nvs:]
var sa []byte
if parseFn != nil {
sa = saRest[:sizeofSockaddrInet6]
saRest = saRest[sizeofSockaddrInet6:]
} else if marshalFn != nil {
n := marshalFn(ms[i].Addr, saRest)
if n > 0 {
sa = saRest[:n]
saRest = saRest[n:]
}
}
hs[i].Hdr.pack(vs, ms[i].Buffers, ms[i].OOB, sa)
}
return hs
}
// syscaller is a helper to invoke recvmmsg and sendmmsg via the RawConn.Read/Write interface.
// It is reusable, to amortize the overhead of allocating a closure for the function passed to
// RawConn.Read/Write.
type syscaller struct {
n int
operr error
hs mmsghdrs
flags int
boundRecvmmsgF func(uintptr) bool
boundSendmmsgF func(uintptr) bool
}
func (r *syscaller) init() {
r.boundRecvmmsgF = r.recvmmsgF
r.boundSendmmsgF = r.sendmmsgF
}
func (r *syscaller) recvmmsg(c syscall.RawConn, hs mmsghdrs, flags int) (int, error) {
r.n = 0
r.operr = nil
r.hs = hs
r.flags = flags
if err := c.Read(r.boundRecvmmsgF); err != nil {
return r.n, err
}
if r.operr != nil {
return r.n, os.NewSyscallError("recvmmsg", r.operr)
}
return r.n, nil
}
func (r *syscaller) recvmmsgF(s uintptr) bool {
r.n, r.operr = recvmmsg(s, r.hs, r.flags)
return ioComplete(r.flags, r.operr)
}
func (r *syscaller) sendmmsg(c syscall.RawConn, hs mmsghdrs, flags int) (int, error) {
r.n = 0
r.operr = nil
r.hs = hs
r.flags = flags
if err := c.Write(r.boundSendmmsgF); err != nil {
return r.n, err
}
if r.operr != nil {
return r.n, os.NewSyscallError("sendmmsg", r.operr)
}
return r.n, nil
}
func (r *syscaller) sendmmsgF(s uintptr) bool {
r.n, r.operr = sendmmsg(s, r.hs, r.flags)
return ioComplete(r.flags, r.operr)
}
// mmsgTmps holds reusable temporary helpers for recvmmsg and sendmmsg.
type mmsgTmps struct {
packer mmsghdrsPacker
syscaller syscaller
}
var defaultMmsgTmpsPool = mmsgTmpsPool{
p: sync.Pool{
New: func() interface{} {
tmps := new(mmsgTmps)
tmps.syscaller.init()
return tmps
},
},
}
type mmsgTmpsPool struct {
p sync.Pool
}
func (p *mmsgTmpsPool) Get() *mmsgTmps {
m := p.p.Get().(*mmsgTmps)
// Clear fields up to the len (not the cap) of the slice,
// assuming that the previous caller only used that many elements.
for i := range m.packer.sockaddrs {
m.packer.sockaddrs[i] = 0
}
m.packer.sockaddrs = m.packer.sockaddrs[:0]
for i := range m.packer.vs {
m.packer.vs[i] = iovec{}
}
m.packer.vs = m.packer.vs[:0]
for i := range m.packer.hs {
m.packer.hs[i].Len = 0
m.packer.hs[i].Hdr = msghdr{}
}
m.packer.hs = m.packer.hs[:0]
return m
}
func (p *mmsgTmpsPool) Put(tmps *mmsgTmps) {
p.p.Put(tmps)
}

40
vendor/golang.org/x/net/internal/socket/msghdr_bsd.go generated vendored Normal file
View file

@ -0,0 +1,40 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || netbsd || openbsd
// +build aix darwin dragonfly freebsd netbsd openbsd
package socket
import "unsafe"
func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) {
for i := range vs {
vs[i].set(bs[i])
}
h.setIov(vs)
if len(oob) > 0 {
h.Control = (*byte)(unsafe.Pointer(&oob[0]))
h.Controllen = uint32(len(oob))
}
if sa != nil {
h.Name = (*byte)(unsafe.Pointer(&sa[0]))
h.Namelen = uint32(len(sa))
}
}
func (h *msghdr) name() []byte {
if h.Name != nil && h.Namelen > 0 {
return (*[sizeofSockaddrInet6]byte)(unsafe.Pointer(h.Name))[:h.Namelen]
}
return nil
}
func (h *msghdr) controllen() int {
return int(h.Controllen)
}
func (h *msghdr) flags() int {
return int(h.Flags)
}

17
vendor/golang.org/x/net/internal/socket/msghdr_bsdvar.go generated vendored Normal file
View file

@ -0,0 +1,17 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || netbsd
// +build aix darwin dragonfly freebsd netbsd
package socket
func (h *msghdr) setIov(vs []iovec) {
l := len(vs)
if l == 0 {
return
}
h.Iov = &vs[0]
h.Iovlen = int32(l)
}

36
vendor/golang.org/x/net/internal/socket/msghdr_linux.go generated vendored Normal file
View file

@ -0,0 +1,36 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import "unsafe"
func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) {
for i := range vs {
vs[i].set(bs[i])
}
h.setIov(vs)
if len(oob) > 0 {
h.setControl(oob)
}
if sa != nil {
h.Name = (*byte)(unsafe.Pointer(&sa[0]))
h.Namelen = uint32(len(sa))
}
}
func (h *msghdr) name() []byte {
if h.Name != nil && h.Namelen > 0 {
return (*[sizeofSockaddrInet6]byte)(unsafe.Pointer(h.Name))[:h.Namelen]
}
return nil
}
func (h *msghdr) controllen() int {
return int(h.Controllen)
}
func (h *msghdr) flags() int {
return int(h.Flags)
}

25
vendor/golang.org/x/net/internal/socket/msghdr_linux_32bit.go generated vendored Normal file
View file

@ -0,0 +1,25 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (arm || mips || mipsle || 386 || ppc) && linux
// +build arm mips mipsle 386 ppc
// +build linux
package socket
import "unsafe"
func (h *msghdr) setIov(vs []iovec) {
l := len(vs)
if l == 0 {
return
}
h.Iov = &vs[0]
h.Iovlen = uint32(l)
}
func (h *msghdr) setControl(b []byte) {
h.Control = (*byte)(unsafe.Pointer(&b[0]))
h.Controllen = uint32(len(b))
}

25
vendor/golang.org/x/net/internal/socket/msghdr_linux_64bit.go generated vendored Normal file
View file

@ -0,0 +1,25 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (arm64 || amd64 || loong64 || ppc64 || ppc64le || mips64 || mips64le || riscv64 || s390x) && linux
// +build arm64 amd64 loong64 ppc64 ppc64le mips64 mips64le riscv64 s390x
// +build linux
package socket
import "unsafe"
func (h *msghdr) setIov(vs []iovec) {
l := len(vs)
if l == 0 {
return
}
h.Iov = &vs[0]
h.Iovlen = uint64(l)
}
func (h *msghdr) setControl(b []byte) {
h.Control = (*byte)(unsafe.Pointer(&b[0]))
h.Controllen = uint64(len(b))
}

14
vendor/golang.org/x/net/internal/socket/msghdr_openbsd.go generated vendored Normal file
View file

@ -0,0 +1,14 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
func (h *msghdr) setIov(vs []iovec) {
l := len(vs)
if l == 0 {
return
}
h.Iov = &vs[0]
h.Iovlen = uint32(l)
}

36
vendor/golang.org/x/net/internal/socket/msghdr_solaris_64bit.go generated vendored Normal file
View file

@ -0,0 +1,36 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build amd64 && solaris
// +build amd64,solaris
package socket
import "unsafe"
func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) {
for i := range vs {
vs[i].set(bs[i])
}
if len(vs) > 0 {
h.Iov = &vs[0]
h.Iovlen = int32(len(vs))
}
if len(oob) > 0 {
h.Accrights = (*int8)(unsafe.Pointer(&oob[0]))
h.Accrightslen = int32(len(oob))
}
if sa != nil {
h.Name = (*byte)(unsafe.Pointer(&sa[0]))
h.Namelen = uint32(len(sa))
}
}
func (h *msghdr) controllen() int {
return int(h.Accrightslen)
}
func (h *msghdr) flags() int {
return int(NativeEndian.Uint32(h.Pad_cgo_2[:]))
}

15
vendor/golang.org/x/net/internal/socket/msghdr_stub.go generated vendored Normal file
View file

@ -0,0 +1,15 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !zos
// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!zos
package socket
type msghdr struct{}
func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) {}
func (h *msghdr) name() []byte { return nil }
func (h *msghdr) controllen() int { return 0 }
func (h *msghdr) flags() int { return 0 }

36
vendor/golang.org/x/net/internal/socket/msghdr_zos_s390x.go generated vendored Normal file
View file

@ -0,0 +1,36 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build s390x && zos
// +build s390x,zos
package socket
import "unsafe"
func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) {
for i := range vs {
vs[i].set(bs[i])
}
if len(vs) > 0 {
h.Iov = &vs[0]
h.Iovlen = int32(len(vs))
}
if len(oob) > 0 {
h.Control = (*byte)(unsafe.Pointer(&oob[0]))
h.Controllen = uint32(len(oob))
}
if sa != nil {
h.Name = (*byte)(unsafe.Pointer(&sa[0]))
h.Namelen = uint32(len(sa))
}
}
func (h *msghdr) controllen() int {
return int(h.Controllen)
}
func (h *msghdr) flags() int {
return int(h.Flags)
}

13
vendor/golang.org/x/net/internal/socket/norace.go generated vendored Normal file
View file

@ -0,0 +1,13 @@
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !race
// +build !race
package socket
func (m *Message) raceRead() {
}
func (m *Message) raceWrite() {
}

38
vendor/golang.org/x/net/internal/socket/race.go generated vendored Normal file
View file

@ -0,0 +1,38 @@
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build race
// +build race
package socket
import (
"runtime"
"unsafe"
)
// This package reads and writes the Message buffers using a
// direct system call, which the race detector can't see.
// These functions tell the race detector what is going on during the syscall.
func (m *Message) raceRead() {
for _, b := range m.Buffers {
if len(b) > 0 {
runtime.RaceReadRange(unsafe.Pointer(&b[0]), len(b))
}
}
if b := m.OOB; len(b) > 0 {
runtime.RaceReadRange(unsafe.Pointer(&b[0]), len(b))
}
}
func (m *Message) raceWrite() {
for _, b := range m.Buffers {
if len(b) > 0 {
runtime.RaceWriteRange(unsafe.Pointer(&b[0]), len(b))
}
}
if b := m.OOB; len(b) > 0 {
runtime.RaceWriteRange(unsafe.Pointer(&b[0]), len(b))
}
}

91
vendor/golang.org/x/net/internal/socket/rawconn.go generated vendored Normal file
View file

@ -0,0 +1,91 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import (
"errors"
"net"
"os"
"syscall"
)
// A Conn represents a raw connection.
type Conn struct {
network string
c syscall.RawConn
}
// tcpConn is an interface implemented by net.TCPConn.
// It can be used for interface assertions to check if a net.Conn is a TCP connection.
type tcpConn interface {
SyscallConn() (syscall.RawConn, error)
SetLinger(int) error
}
var _ tcpConn = (*net.TCPConn)(nil)
// udpConn is an interface implemented by net.UDPConn.
// It can be used for interface assertions to check if a net.Conn is a UDP connection.
type udpConn interface {
SyscallConn() (syscall.RawConn, error)
ReadMsgUDP(b, oob []byte) (n, oobn, flags int, addr *net.UDPAddr, err error)
}
var _ udpConn = (*net.UDPConn)(nil)
// ipConn is an interface implemented by net.IPConn.
// It can be used for interface assertions to check if a net.Conn is an IP connection.
type ipConn interface {
SyscallConn() (syscall.RawConn, error)
ReadMsgIP(b, oob []byte) (n, oobn, flags int, addr *net.IPAddr, err error)
}
var _ ipConn = (*net.IPConn)(nil)
// NewConn returns a new raw connection.
func NewConn(c net.Conn) (*Conn, error) {
var err error
var cc Conn
switch c := c.(type) {
case tcpConn:
cc.network = "tcp"
cc.c, err = c.SyscallConn()
case udpConn:
cc.network = "udp"
cc.c, err = c.SyscallConn()
case ipConn:
cc.network = "ip"
cc.c, err = c.SyscallConn()
default:
return nil, errors.New("unknown connection type")
}
if err != nil {
return nil, err
}
return &cc, nil
}
func (o *Option) get(c *Conn, b []byte) (int, error) {
var operr error
var n int
fn := func(s uintptr) {
n, operr = getsockopt(s, o.Level, o.Name, b)
}
if err := c.c.Control(fn); err != nil {
return 0, err
}
return n, os.NewSyscallError("getsockopt", operr)
}
func (o *Option) set(c *Conn, b []byte) error {
var operr error
fn := func(s uintptr) {
operr = setsockopt(s, o.Level, o.Name, b)
}
if err := c.c.Control(fn); err != nil {
return err
}
return os.NewSyscallError("setsockopt", operr)
}

54
vendor/golang.org/x/net/internal/socket/rawconn_mmsg.go generated vendored Normal file
View file

@ -0,0 +1,54 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build linux
// +build linux
package socket
import (
"net"
)
func (c *Conn) recvMsgs(ms []Message, flags int) (int, error) {
for i := range ms {
ms[i].raceWrite()
}
tmps := defaultMmsgTmpsPool.Get()
defer defaultMmsgTmpsPool.Put(tmps)
var parseFn func([]byte, string) (net.Addr, error)
if c.network != "tcp" {
parseFn = parseInetAddr
}
hs := tmps.packer.pack(ms, parseFn, nil)
n, err := tmps.syscaller.recvmmsg(c.c, hs, flags)
if err != nil {
return n, err
}
if err := hs[:n].unpack(ms[:n], parseFn, c.network); err != nil {
return n, err
}
return n, nil
}
func (c *Conn) sendMsgs(ms []Message, flags int) (int, error) {
for i := range ms {
ms[i].raceRead()
}
tmps := defaultMmsgTmpsPool.Get()
defer defaultMmsgTmpsPool.Put(tmps)
var marshalFn func(net.Addr, []byte) int
if c.network != "tcp" {
marshalFn = marshalInetAddr
}
hs := tmps.packer.pack(ms, nil, marshalFn)
n, err := tmps.syscaller.sendmmsg(c.c, hs, flags)
if err != nil {
return n, err
}
if err := hs[:n].unpack(ms[:n], nil, ""); err != nil {
return n, err
}
return n, nil
}

60
vendor/golang.org/x/net/internal/socket/rawconn_msg.go generated vendored Normal file
View file

@ -0,0 +1,60 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || windows || zos
// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris windows zos
package socket
import (
"net"
"os"
)
func (c *Conn) recvMsg(m *Message, flags int) error {
m.raceWrite()
var (
operr error
n int
oobn int
recvflags int
from net.Addr
)
fn := func(s uintptr) bool {
n, oobn, recvflags, from, operr = recvmsg(s, m.Buffers, m.OOB, flags, c.network)
return ioComplete(flags, operr)
}
if err := c.c.Read(fn); err != nil {
return err
}
if operr != nil {
return os.NewSyscallError("recvmsg", operr)
}
m.Addr = from
m.N = n
m.NN = oobn
m.Flags = recvflags
return nil
}
func (c *Conn) sendMsg(m *Message, flags int) error {
m.raceRead()
var (
operr error
n int
)
fn := func(s uintptr) bool {
n, operr = sendmsg(s, m.Buffers, m.OOB, m.Addr, flags)
return ioComplete(flags, operr)
}
if err := c.c.Write(fn); err != nil {
return err
}
if operr != nil {
return os.NewSyscallError("sendmsg", operr)
}
m.N = n
m.NN = len(m.OOB)
return nil
}

16
vendor/golang.org/x/net/internal/socket/rawconn_nommsg.go generated vendored Normal file
View file

@ -0,0 +1,16 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !linux
// +build !linux
package socket
func (c *Conn) recvMsgs(ms []Message, flags int) (int, error) {
return 0, errNotImplemented
}
func (c *Conn) sendMsgs(ms []Message, flags int) (int, error) {
return 0, errNotImplemented
}

16
vendor/golang.org/x/net/internal/socket/rawconn_nomsg.go generated vendored Normal file
View file

@ -0,0 +1,16 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !windows && !zos
// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows,!zos
package socket
func (c *Conn) recvMsg(m *Message, flags int) error {
return errNotImplemented
}
func (c *Conn) sendMsg(m *Message, flags int) error {
return errNotImplemented
}

280
vendor/golang.org/x/net/internal/socket/socket.go generated vendored Normal file
View file

@ -0,0 +1,280 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package socket provides a portable interface for socket system
// calls.
package socket // import "golang.org/x/net/internal/socket"
import (
"errors"
"net"
"runtime"
"unsafe"
)
var errNotImplemented = errors.New("not implemented on " + runtime.GOOS + "/" + runtime.GOARCH)
// An Option represents a sticky socket option.
type Option struct {
Level int // level
Name int // name; must be equal or greater than 1
Len int // length of value in bytes; must be equal or greater than 1
}
// Get reads a value for the option from the kernel.
// It returns the number of bytes written into b.
func (o *Option) Get(c *Conn, b []byte) (int, error) {
if o.Name < 1 || o.Len < 1 {
return 0, errors.New("invalid option")
}
if len(b) < o.Len {
return 0, errors.New("short buffer")
}
return o.get(c, b)
}
// GetInt returns an integer value for the option.
//
// The Len field of Option must be either 1 or 4.
func (o *Option) GetInt(c *Conn) (int, error) {
if o.Len != 1 && o.Len != 4 {
return 0, errors.New("invalid option")
}
var b []byte
var bb [4]byte
if o.Len == 1 {
b = bb[:1]
} else {
b = bb[:4]
}
n, err := o.get(c, b)
if err != nil {
return 0, err
}
if n != o.Len {
return 0, errors.New("invalid option length")
}
if o.Len == 1 {
return int(b[0]), nil
}
return int(NativeEndian.Uint32(b[:4])), nil
}
// Set writes the option and value to the kernel.
func (o *Option) Set(c *Conn, b []byte) error {
if o.Name < 1 || o.Len < 1 {
return errors.New("invalid option")
}
if len(b) < o.Len {
return errors.New("short buffer")
}
return o.set(c, b)
}
// SetInt writes the option and value to the kernel.
//
// The Len field of Option must be either 1 or 4.
func (o *Option) SetInt(c *Conn, v int) error {
if o.Len != 1 && o.Len != 4 {
return errors.New("invalid option")
}
var b []byte
if o.Len == 1 {
b = []byte{byte(v)}
} else {
var bb [4]byte
NativeEndian.PutUint32(bb[:o.Len], uint32(v))
b = bb[:4]
}
return o.set(c, b)
}
// ControlMessageSpace returns the whole length of control message.
func ControlMessageSpace(dataLen int) int {
return controlMessageSpace(dataLen)
}
// A ControlMessage represents the head message in a stream of control
// messages.
//
// A control message comprises of a header, data and a few padding
// fields to conform to the interface to the kernel.
//
// See RFC 3542 for further information.
type ControlMessage []byte
// Data returns the data field of the control message at the head on
// m.
func (m ControlMessage) Data(dataLen int) []byte {
l := controlHeaderLen()
if len(m) < l || len(m) < l+dataLen {
return nil
}
return m[l : l+dataLen]
}
// Next returns the control message at the next on m.
//
// Next works only for standard control messages.
func (m ControlMessage) Next(dataLen int) ControlMessage {
l := ControlMessageSpace(dataLen)
if len(m) < l {
return nil
}
return m[l:]
}
// MarshalHeader marshals the header fields of the control message at
// the head on m.
func (m ControlMessage) MarshalHeader(lvl, typ, dataLen int) error {
if len(m) < controlHeaderLen() {
return errors.New("short message")
}
h := (*cmsghdr)(unsafe.Pointer(&m[0]))
h.set(controlMessageLen(dataLen), lvl, typ)
return nil
}
// ParseHeader parses and returns the header fields of the control
// message at the head on m.
func (m ControlMessage) ParseHeader() (lvl, typ, dataLen int, err error) {
l := controlHeaderLen()
if len(m) < l {
return 0, 0, 0, errors.New("short message")
}
h := (*cmsghdr)(unsafe.Pointer(&m[0]))
return h.lvl(), h.typ(), int(uint64(h.len()) - uint64(l)), nil
}
// Marshal marshals the control message at the head on m, and returns
// the next control message.
func (m ControlMessage) Marshal(lvl, typ int, data []byte) (ControlMessage, error) {
l := len(data)
if len(m) < ControlMessageSpace(l) {
return nil, errors.New("short message")
}
h := (*cmsghdr)(unsafe.Pointer(&m[0]))
h.set(controlMessageLen(l), lvl, typ)
if l > 0 {
copy(m.Data(l), data)
}
return m.Next(l), nil
}
// Parse parses m as a single or multiple control messages.
//
// Parse works for both standard and compatible messages.
func (m ControlMessage) Parse() ([]ControlMessage, error) {
var ms []ControlMessage
for len(m) >= controlHeaderLen() {
h := (*cmsghdr)(unsafe.Pointer(&m[0]))
l := h.len()
if l <= 0 {
return nil, errors.New("invalid header length")
}
if uint64(l) < uint64(controlHeaderLen()) {
return nil, errors.New("invalid message length")
}
if uint64(l) > uint64(len(m)) {
return nil, errors.New("short buffer")
}
// On message reception:
//
// |<- ControlMessageSpace --------------->|
// |<- controlMessageLen ---------->| |
// |<- controlHeaderLen ->| | |
// +---------------+------+---------+------+
// | Header | PadH | Data | PadD |
// +---------------+------+---------+------+
//
// On compatible message reception:
//
// | ... |<- controlMessageLen ----------->|
// | ... |<- controlHeaderLen ->| |
// +-----+---------------+------+----------+
// | ... | Header | PadH | Data |
// +-----+---------------+------+----------+
ms = append(ms, ControlMessage(m[:l]))
ll := l - controlHeaderLen()
if len(m) >= ControlMessageSpace(ll) {
m = m[ControlMessageSpace(ll):]
} else {
m = m[controlMessageLen(ll):]
}
}
return ms, nil
}
// NewControlMessage returns a new stream of control messages.
func NewControlMessage(dataLen []int) ControlMessage {
var l int
for i := range dataLen {
l += ControlMessageSpace(dataLen[i])
}
return make([]byte, l)
}
// A Message represents an IO message.
type Message struct {
// When writing, the Buffers field must contain at least one
// byte to write.
// When reading, the Buffers field will always contain a byte
// to read.
Buffers [][]byte
// OOB contains protocol-specific control or miscellaneous
// ancillary data known as out-of-band data.
OOB []byte
// Addr specifies a destination address when writing.
// It can be nil when the underlying protocol of the raw
// connection uses connection-oriented communication.
// After a successful read, it may contain the source address
// on the received packet.
Addr net.Addr
N int // # of bytes read or written from/to Buffers
NN int // # of bytes read or written from/to OOB
Flags int // protocol-specific information on the received message
}
// RecvMsg wraps recvmsg system call.
//
// The provided flags is a set of platform-dependent flags, such as
// syscall.MSG_PEEK.
func (c *Conn) RecvMsg(m *Message, flags int) error {
return c.recvMsg(m, flags)
}
// SendMsg wraps sendmsg system call.
//
// The provided flags is a set of platform-dependent flags, such as
// syscall.MSG_DONTROUTE.
func (c *Conn) SendMsg(m *Message, flags int) error {
return c.sendMsg(m, flags)
}
// RecvMsgs wraps recvmmsg system call.
//
// It returns the number of processed messages.
//
// The provided flags is a set of platform-dependent flags, such as
// syscall.MSG_PEEK.
//
// Only Linux supports this.
func (c *Conn) RecvMsgs(ms []Message, flags int) (int, error) {
return c.recvMsgs(ms, flags)
}
// SendMsgs wraps sendmmsg system call.
//
// It returns the number of processed messages.
//
// The provided flags is a set of platform-dependent flags, such as
// syscall.MSG_DONTROUTE.
//
// Only Linux supports this.
func (c *Conn) SendMsgs(ms []Message, flags int) (int, error) {
return c.sendMsgs(ms, flags)
}

23
vendor/golang.org/x/net/internal/socket/sys.go generated vendored Normal file
View file

@ -0,0 +1,23 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import (
"encoding/binary"
"unsafe"
)
// NativeEndian is the machine native endian implementation of ByteOrder.
var NativeEndian binary.ByteOrder
func init() {
i := uint32(1)
b := (*[4]byte)(unsafe.Pointer(&i))
if b[0] == 1 {
NativeEndian = binary.LittleEndian
} else {
NativeEndian = binary.BigEndian
}
}

16
vendor/golang.org/x/net/internal/socket/sys_bsd.go generated vendored Normal file
View file

@ -0,0 +1,16 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || openbsd || solaris
// +build aix darwin dragonfly freebsd openbsd solaris
package socket
func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
return 0, errNotImplemented
}
func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
return 0, errNotImplemented
}

21
vendor/golang.org/x/net/internal/socket/sys_const_unix.go generated vendored Normal file
View file

@ -0,0 +1,21 @@
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
package socket
import "golang.org/x/sys/unix"
const (
sysAF_UNSPEC = unix.AF_UNSPEC
sysAF_INET = unix.AF_INET
sysAF_INET6 = unix.AF_INET6
sysSOCK_RAW = unix.SOCK_RAW
sizeofSockaddrInet4 = unix.SizeofSockaddrInet4
sizeofSockaddrInet6 = unix.SizeofSockaddrInet6
)

23
vendor/golang.org/x/net/internal/socket/sys_linux.go generated vendored Normal file
View file

@ -0,0 +1,23 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build linux && !s390x && !386
// +build linux,!s390x,!386
package socket
import (
"syscall"
"unsafe"
)
func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
n, _, errno := syscall.Syscall6(sysRECVMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
return int(n), errnoErr(errno)
}
func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
n, _, errno := syscall.Syscall6(sysSENDMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
return int(n), errnoErr(errno)
}

28
vendor/golang.org/x/net/internal/socket/sys_linux_386.go generated vendored Normal file
View file

@ -0,0 +1,28 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import (
"syscall"
"unsafe"
)
const (
sysRECVMMSG = 0x13
sysSENDMMSG = 0x14
)
func socketcall(call, a0, a1, a2, a3, a4, a5 uintptr) (uintptr, syscall.Errno)
func rawsocketcall(call, a0, a1, a2, a3, a4, a5 uintptr) (uintptr, syscall.Errno)
func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
n, errno := socketcall(sysRECVMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
return int(n), errnoErr(errno)
}
func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
n, errno := socketcall(sysSENDMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
return int(n), errnoErr(errno)
}

11
vendor/golang.org/x/net/internal/socket/sys_linux_386.s generated vendored Normal file
View file

@ -0,0 +1,11 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include "textflag.h"
TEXT ·socketcall(SB),NOSPLIT,$0-36
JMP syscall·socketcall(SB)
TEXT ·rawsocketcall(SB),NOSPLIT,$0-36
JMP syscall·rawsocketcall(SB)

10
vendor/golang.org/x/net/internal/socket/sys_linux_amd64.go generated vendored Normal file
View file

@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x12b
sysSENDMMSG = 0x133
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_arm.go generated vendored Normal file
View file

@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x16d
sysSENDMMSG = 0x176
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_arm64.go generated vendored Normal file
View file

@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0xf3
sysSENDMMSG = 0x10d
)

13
vendor/golang.org/x/net/internal/socket/sys_linux_loong64.go generated vendored Normal file
View file

@ -0,0 +1,13 @@
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build loong64
// +build loong64
package socket
const (
sysRECVMMSG = 0xf3
sysSENDMMSG = 0x10d
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_mips.go generated vendored Normal file
View file

@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x10ef
sysSENDMMSG = 0x10f7
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_mips64.go generated vendored Normal file
View file

@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x14ae
sysSENDMMSG = 0x14b6
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_mips64le.go generated vendored Normal file
View file

@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x14ae
sysSENDMMSG = 0x14b6
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_mipsle.go generated vendored Normal file
View file

@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x10ef
sysSENDMMSG = 0x10f7
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_ppc.go generated vendored Normal file
View file

@ -0,0 +1,10 @@
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x157
sysSENDMMSG = 0x15d
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_ppc64.go generated vendored Normal file
View file

@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x157
sysSENDMMSG = 0x15d
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_ppc64le.go generated vendored Normal file
View file

@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x157
sysSENDMMSG = 0x15d
)

13
vendor/golang.org/x/net/internal/socket/sys_linux_riscv64.go generated vendored Normal file
View file

@ -0,0 +1,13 @@
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build riscv64
// +build riscv64
package socket
const (
sysRECVMMSG = 0xf3
sysSENDMMSG = 0x10d
)

28
vendor/golang.org/x/net/internal/socket/sys_linux_s390x.go generated vendored Normal file
View file

@ -0,0 +1,28 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import (
"syscall"
"unsafe"
)
const (
sysRECVMMSG = 0x13
sysSENDMMSG = 0x14
)
func socketcall(call, a0, a1, a2, a3, a4, a5 uintptr) (uintptr, syscall.Errno)
func rawsocketcall(call, a0, a1, a2, a3, a4, a5 uintptr) (uintptr, syscall.Errno)
func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
n, errno := socketcall(sysRECVMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
return int(n), errnoErr(errno)
}
func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
n, errno := socketcall(sysSENDMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
return int(n), errnoErr(errno)
}

11
vendor/golang.org/x/net/internal/socket/sys_linux_s390x.s generated vendored Normal file
View file

@ -0,0 +1,11 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include "textflag.h"
TEXT ·socketcall(SB),NOSPLIT,$0-72
JMP syscall·socketcall(SB)
TEXT ·rawsocketcall(SB),NOSPLIT,$0-72
JMP syscall·rawsocketcall(SB)

25
vendor/golang.org/x/net/internal/socket/sys_netbsd.go generated vendored Normal file
View file

@ -0,0 +1,25 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import (
"syscall"
"unsafe"
)
const (
sysRECVMMSG = 0x1db
sysSENDMMSG = 0x1dc
)
func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
n, _, errno := syscall.Syscall6(sysRECVMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
return int(n), errnoErr(errno)
}
func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
n, _, errno := syscall.Syscall6(sysSENDMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
return int(n), errnoErr(errno)
}

185
vendor/golang.org/x/net/internal/socket/sys_posix.go generated vendored Normal file
View file

@ -0,0 +1,185 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || windows || zos
// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris windows zos
package socket
import (
"encoding/binary"
"errors"
"net"
"runtime"
"strconv"
"sync"
"time"
)
// marshalInetAddr writes a in sockaddr format into the buffer b.
// The buffer must be sufficiently large (sizeofSockaddrInet4/6).
// Returns the number of bytes written.
func marshalInetAddr(a net.Addr, b []byte) int {
switch a := a.(type) {
case *net.TCPAddr:
return marshalSockaddr(a.IP, a.Port, a.Zone, b)
case *net.UDPAddr:
return marshalSockaddr(a.IP, a.Port, a.Zone, b)
case *net.IPAddr:
return marshalSockaddr(a.IP, 0, a.Zone, b)
default:
return 0
}
}
func marshalSockaddr(ip net.IP, port int, zone string, b []byte) int {
if ip4 := ip.To4(); ip4 != nil {
switch runtime.GOOS {
case "android", "illumos", "linux", "solaris", "windows":
NativeEndian.PutUint16(b[:2], uint16(sysAF_INET))
default:
b[0] = sizeofSockaddrInet4
b[1] = sysAF_INET
}
binary.BigEndian.PutUint16(b[2:4], uint16(port))
copy(b[4:8], ip4)
return sizeofSockaddrInet4
}
if ip6 := ip.To16(); ip6 != nil && ip.To4() == nil {
switch runtime.GOOS {
case "android", "illumos", "linux", "solaris", "windows":
NativeEndian.PutUint16(b[:2], uint16(sysAF_INET6))
default:
b[0] = sizeofSockaddrInet6
b[1] = sysAF_INET6
}
binary.BigEndian.PutUint16(b[2:4], uint16(port))
copy(b[8:24], ip6)
if zone != "" {
NativeEndian.PutUint32(b[24:28], uint32(zoneCache.index(zone)))
}
return sizeofSockaddrInet6
}
return 0
}
func parseInetAddr(b []byte, network string) (net.Addr, error) {
if len(b) < 2 {
return nil, errors.New("invalid address")
}
var af int
switch runtime.GOOS {
case "android", "illumos", "linux", "solaris", "windows":
af = int(NativeEndian.Uint16(b[:2]))
default:
af = int(b[1])
}
var ip net.IP
var zone string
if af == sysAF_INET {
if len(b) < sizeofSockaddrInet4 {
return nil, errors.New("short address")
}
ip = make(net.IP, net.IPv4len)
copy(ip, b[4:8])
}
if af == sysAF_INET6 {
if len(b) < sizeofSockaddrInet6 {
return nil, errors.New("short address")
}
ip = make(net.IP, net.IPv6len)
copy(ip, b[8:24])
if id := int(NativeEndian.Uint32(b[24:28])); id > 0 {
zone = zoneCache.name(id)
}
}
switch network {
case "tcp", "tcp4", "tcp6":
return &net.TCPAddr{IP: ip, Port: int(binary.BigEndian.Uint16(b[2:4])), Zone: zone}, nil
case "udp", "udp4", "udp6":
return &net.UDPAddr{IP: ip, Port: int(binary.BigEndian.Uint16(b[2:4])), Zone: zone}, nil
default:
return &net.IPAddr{IP: ip, Zone: zone}, nil
}
}
// An ipv6ZoneCache represents a cache holding partial network
// interface information. It is used for reducing the cost of IPv6
// addressing scope zone resolution.
//
// Multiple names sharing the index are managed by first-come
// first-served basis for consistency.
type ipv6ZoneCache struct {
sync.RWMutex // guard the following
lastFetched time.Time // last time routing information was fetched
toIndex map[string]int // interface name to its index
toName map[int]string // interface index to its name
}
var zoneCache = ipv6ZoneCache{
toIndex: make(map[string]int),
toName: make(map[int]string),
}
// update refreshes the network interface information if the cache was last
// updated more than 1 minute ago, or if force is set. It returns whether the
// cache was updated.
func (zc *ipv6ZoneCache) update(ift []net.Interface, force bool) (updated bool) {
zc.Lock()
defer zc.Unlock()
now := time.Now()
if !force && zc.lastFetched.After(now.Add(-60*time.Second)) {
return false
}
zc.lastFetched = now
if len(ift) == 0 {
var err error
if ift, err = net.Interfaces(); err != nil {
return false
}
}
zc.toIndex = make(map[string]int, len(ift))
zc.toName = make(map[int]string, len(ift))
for _, ifi := range ift {
zc.toIndex[ifi.Name] = ifi.Index
if _, ok := zc.toName[ifi.Index]; !ok {
zc.toName[ifi.Index] = ifi.Name
}
}
return true
}
func (zc *ipv6ZoneCache) name(zone int) string {
updated := zoneCache.update(nil, false)
zoneCache.RLock()
name, ok := zoneCache.toName[zone]
zoneCache.RUnlock()
if !ok && !updated {
zoneCache.update(nil, true)
zoneCache.RLock()
name, ok = zoneCache.toName[zone]
zoneCache.RUnlock()
}
if !ok { // last resort
name = strconv.Itoa(zone)
}
return name
}
func (zc *ipv6ZoneCache) index(zone string) int {
updated := zoneCache.update(nil, false)
zoneCache.RLock()
index, ok := zoneCache.toIndex[zone]
zoneCache.RUnlock()
if !ok && !updated {
zoneCache.update(nil, true)
zoneCache.RLock()
index, ok = zoneCache.toIndex[zone]
zoneCache.RUnlock()
}
if !ok { // last resort
index, _ = strconv.Atoi(zone)
}
return index
}

53
vendor/golang.org/x/net/internal/socket/sys_stub.go generated vendored Normal file
View file

@ -0,0 +1,53 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !windows && !zos
// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows,!zos
package socket
import "net"
const (
sysAF_UNSPEC = 0x0
sysAF_INET = 0x2
sysAF_INET6 = 0xa
sysSOCK_RAW = 0x3
sizeofSockaddrInet4 = 0x10
sizeofSockaddrInet6 = 0x1c
)
func marshalInetAddr(ip net.IP, port int, zone string) []byte {
return nil
}
func parseInetAddr(b []byte, network string) (net.Addr, error) {
return nil, errNotImplemented
}
func getsockopt(s uintptr, level, name int, b []byte) (int, error) {
return 0, errNotImplemented
}
func setsockopt(s uintptr, level, name int, b []byte) error {
return errNotImplemented
}
func recvmsg(s uintptr, buffers [][]byte, oob []byte, flags int, network string) (n, oobn int, recvflags int, from net.Addr, err error) {
return 0, 0, 0, nil, errNotImplemented
}
func sendmsg(s uintptr, buffers [][]byte, oob []byte, to net.Addr, flags int) (int, error) {
return 0, errNotImplemented
}
func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
return 0, errNotImplemented
}
func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
return 0, errNotImplemented
}

122
vendor/golang.org/x/net/internal/socket/sys_unix.go generated vendored Normal file
View file

@ -0,0 +1,122 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
package socket
import (
"net"
"unsafe"
"golang.org/x/sys/unix"
)
//go:linkname syscall_getsockopt syscall.getsockopt
func syscall_getsockopt(s, level, name int, val unsafe.Pointer, vallen *uint32) error
//go:linkname syscall_setsockopt syscall.setsockopt
func syscall_setsockopt(s, level, name int, val unsafe.Pointer, vallen uintptr) error
func getsockopt(s uintptr, level, name int, b []byte) (int, error) {
l := uint32(len(b))
err := syscall_getsockopt(int(s), level, name, unsafe.Pointer(&b[0]), &l)
return int(l), err
}
func setsockopt(s uintptr, level, name int, b []byte) error {
return syscall_setsockopt(int(s), level, name, unsafe.Pointer(&b[0]), uintptr(len(b)))
}
func recvmsg(s uintptr, buffers [][]byte, oob []byte, flags int, network string) (n, oobn int, recvflags int, from net.Addr, err error) {
var unixFrom unix.Sockaddr
n, oobn, recvflags, unixFrom, err = unix.RecvmsgBuffers(int(s), buffers, oob, flags)
if unixFrom != nil {
from = sockaddrToAddr(unixFrom, network)
}
return
}
func sendmsg(s uintptr, buffers [][]byte, oob []byte, to net.Addr, flags int) (int, error) {
var unixTo unix.Sockaddr
if to != nil {
unixTo = addrToSockaddr(to)
}
return unix.SendmsgBuffers(int(s), buffers, oob, unixTo, flags)
}
// addrToSockaddr converts a net.Addr to a unix.Sockaddr.
func addrToSockaddr(a net.Addr) unix.Sockaddr {
var (
ip net.IP
port int
zone string
)
switch a := a.(type) {
case *net.TCPAddr:
ip = a.IP
port = a.Port
zone = a.Zone
case *net.UDPAddr:
ip = a.IP
port = a.Port
zone = a.Zone
case *net.IPAddr:
ip = a.IP
zone = a.Zone
default:
return nil
}
if ip4 := ip.To4(); ip4 != nil {
sa := unix.SockaddrInet4{Port: port}
copy(sa.Addr[:], ip4)
return &sa
}
if ip6 := ip.To16(); ip6 != nil && ip.To4() == nil {
sa := unix.SockaddrInet6{Port: port}
copy(sa.Addr[:], ip6)
if zone != "" {
sa.ZoneId = uint32(zoneCache.index(zone))
}
return &sa
}
return nil
}
// sockaddrToAddr converts a unix.Sockaddr to a net.Addr.
func sockaddrToAddr(sa unix.Sockaddr, network string) net.Addr {
var (
ip net.IP
port int
zone string
)
switch sa := sa.(type) {
case *unix.SockaddrInet4:
ip = make(net.IP, net.IPv4len)
copy(ip, sa.Addr[:])
port = sa.Port
case *unix.SockaddrInet6:
ip = make(net.IP, net.IPv6len)
copy(ip, sa.Addr[:])
port = sa.Port
if sa.ZoneId > 0 {
zone = zoneCache.name(int(sa.ZoneId))
}
default:
return nil
}
switch network {
case "tcp", "tcp4", "tcp6":
return &net.TCPAddr{IP: ip, Port: port, Zone: zone}
case "udp", "udp4", "udp6":
return &net.UDPAddr{IP: ip, Port: port, Zone: zone}
default:
return &net.IPAddr{IP: ip, Zone: zone}
}
}

55
vendor/golang.org/x/net/internal/socket/sys_windows.go generated vendored Normal file
View file

@ -0,0 +1,55 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import (
"net"
"syscall"
"unsafe"
"golang.org/x/sys/windows"
)
func probeProtocolStack() int {
var p uintptr
return int(unsafe.Sizeof(p))
}
const (
sysAF_UNSPEC = windows.AF_UNSPEC
sysAF_INET = windows.AF_INET
sysAF_INET6 = windows.AF_INET6
sysSOCK_RAW = windows.SOCK_RAW
sizeofSockaddrInet4 = 0x10
sizeofSockaddrInet6 = 0x1c
)
func getsockopt(s uintptr, level, name int, b []byte) (int, error) {
l := uint32(len(b))
err := syscall.Getsockopt(syscall.Handle(s), int32(level), int32(name), (*byte)(unsafe.Pointer(&b[0])), (*int32)(unsafe.Pointer(&l)))
return int(l), err
}
func setsockopt(s uintptr, level, name int, b []byte) error {
return syscall.Setsockopt(syscall.Handle(s), int32(level), int32(name), (*byte)(unsafe.Pointer(&b[0])), int32(len(b)))
}
func recvmsg(s uintptr, buffers [][]byte, oob []byte, flags int, network string) (n, oobn int, recvflags int, from net.Addr, err error) {
return 0, 0, 0, nil, errNotImplemented
}
func sendmsg(s uintptr, buffers [][]byte, oob []byte, to net.Addr, flags int) (int, error) {
return 0, errNotImplemented
}
func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
return 0, errNotImplemented
}
func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
return 0, errNotImplemented
}

66
vendor/golang.org/x/net/internal/socket/sys_zos_s390x.go generated vendored Normal file
View file

@ -0,0 +1,66 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import (
"net"
"syscall"
"unsafe"
)
func syscall_syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno)
func syscall_syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno)
func probeProtocolStack() int {
return 4 // sizeof(int) on GOOS=zos GOARCH=s390x
}
func getsockopt(s uintptr, level, name int, b []byte) (int, error) {
l := uint32(len(b))
_, _, errno := syscall_syscall6(syscall.SYS_GETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(unsafe.Pointer(&l)), 0)
return int(l), errnoErr(errno)
}
func setsockopt(s uintptr, level, name int, b []byte) error {
_, _, errno := syscall_syscall6(syscall.SYS_SETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(len(b)), 0)
return errnoErr(errno)
}
func recvmsg(s uintptr, buffers [][]byte, oob []byte, flags int, network string) (n, oobn int, recvflags int, from net.Addr, err error) {
var h msghdr
vs := make([]iovec, len(buffers))
var sa []byte
if network != "tcp" {
sa = make([]byte, sizeofSockaddrInet6)
}
h.pack(vs, buffers, oob, sa)
sn, _, errno := syscall_syscall(syscall.SYS___RECVMSG_A, s, uintptr(unsafe.Pointer(&h)), uintptr(flags))
n = int(sn)
oobn = h.controllen()
recvflags = h.flags()
err = errnoErr(errno)
if network != "tcp" {
var err2 error
from, err2 = parseInetAddr(sa, network)
if err2 != nil && err == nil {
err = err2
}
}
return
}
func sendmsg(s uintptr, buffers [][]byte, oob []byte, to net.Addr, flags int) (int, error) {
var h msghdr
vs := make([]iovec, len(buffers))
var sa []byte
if to != nil {
var a [sizeofSockaddrInet6]byte
n := marshalInetAddr(to, a[:])
sa = a[:n]
}
h.pack(vs, buffers, oob, sa)
n, _, errno := syscall_syscall(syscall.SYS___SENDMSG_A, s, uintptr(unsafe.Pointer(&h)), uintptr(flags))
return int(n), errnoErr(errno)
}

11
vendor/golang.org/x/net/internal/socket/sys_zos_s390x.s generated vendored Normal file
View file

@ -0,0 +1,11 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include "textflag.h"
TEXT ·syscall_syscall(SB),NOSPLIT,$0
JMP syscall·_syscall(SB)
TEXT ·syscall_syscall6(SB),NOSPLIT,$0
JMP syscall·_syscall6(SB)

40
vendor/golang.org/x/net/internal/socket/zsys_aix_ppc64.go generated vendored Normal file
View file

@ -0,0 +1,40 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_aix.go
// Added for go1.11 compatibility
//go:build aix
// +build aix
package socket
type iovec struct {
Base *byte
Len uint64
}
type msghdr struct {
Name *byte
Namelen uint32
Iov *iovec
Iovlen int32
Control *byte
Controllen uint32
Flags int32
}
type mmsghdr struct {
Hdr msghdr
Len uint32
Pad_cgo_0 [4]byte
}
type cmsghdr struct {
Len uint32
Level int32
Type int32
}
const (
sizeofIovec = 0x10
sizeofMsghdr = 0x30
)

32
vendor/golang.org/x/net/internal/socket/zsys_darwin_amd64.go generated vendored Normal file
View file

@ -0,0 +1,32 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_darwin.go
package socket
type iovec struct {
Base *byte
Len uint64
}
type msghdr struct {
Name *byte
Namelen uint32
Pad_cgo_0 [4]byte
Iov *iovec
Iovlen int32
Pad_cgo_1 [4]byte
Control *byte
Controllen uint32
Flags int32
}
type cmsghdr struct {
Len uint32
Level int32
Type int32
}
const (
sizeofIovec = 0x10
sizeofMsghdr = 0x30
)

32
vendor/golang.org/x/net/internal/socket/zsys_darwin_arm64.go generated vendored Normal file
View file

@ -0,0 +1,32 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_darwin.go
package socket
type iovec struct {
Base *byte
Len uint64
}
type msghdr struct {
Name *byte
Namelen uint32
Pad_cgo_0 [4]byte
Iov *iovec
Iovlen int32
Pad_cgo_1 [4]byte
Control *byte
Controllen uint32
Flags int32
}
type cmsghdr struct {
Len uint32
Level int32
Type int32
}
const (
sizeofIovec = 0x10
sizeofMsghdr = 0x30
)

32
vendor/golang.org/x/net/internal/socket/zsys_dragonfly_amd64.go generated vendored Normal file
View file

@ -0,0 +1,32 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_dragonfly.go
package socket
type iovec struct {
Base *byte
Len uint64
}
type msghdr struct {
Name *byte
Namelen uint32
Pad_cgo_0 [4]byte
Iov *iovec
Iovlen int32
Pad_cgo_1 [4]byte
Control *byte
Controllen uint32
Flags int32
}
type cmsghdr struct {
Len uint32
Level int32
Type int32
}
const (
sizeofIovec = 0x10
sizeofMsghdr = 0x30
)

30
vendor/golang.org/x/net/internal/socket/zsys_freebsd_386.go generated vendored Normal file
View file

@ -0,0 +1,30 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_freebsd.go
package socket
type iovec struct {
Base *byte
Len uint32
}
type msghdr struct {
Name *byte
Namelen uint32
Iov *iovec
Iovlen int32
Control *byte
Controllen uint32
Flags int32
}
type cmsghdr struct {
Len uint32
Level int32
Type int32
}
const (
sizeofIovec = 0x8
sizeofMsghdr = 0x1c
)

32
vendor/golang.org/x/net/internal/socket/zsys_freebsd_amd64.go generated vendored Normal file
View file

@ -0,0 +1,32 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_freebsd.go
package socket
type iovec struct {
Base *byte
Len uint64
}
type msghdr struct {
Name *byte
Namelen uint32
Pad_cgo_0 [4]byte
Iov *iovec
Iovlen int32
Pad_cgo_1 [4]byte
Control *byte
Controllen uint32
Flags int32
}
type cmsghdr struct {
Len uint32
Level int32
Type int32
}
const (
sizeofIovec = 0x10
sizeofMsghdr = 0x30
)

30
vendor/golang.org/x/net/internal/socket/zsys_freebsd_arm.go generated vendored Normal file
View file

@ -0,0 +1,30 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_freebsd.go
package socket
type iovec struct {
Base *byte
Len uint32
}
type msghdr struct {
Name *byte
Namelen uint32
Iov *iovec
Iovlen int32
Control *byte
Controllen uint32
Flags int32
}
type cmsghdr struct {
Len uint32
Level int32
Type int32
}
const (
sizeofIovec = 0x8
sizeofMsghdr = 0x1c
)

32
vendor/golang.org/x/net/internal/socket/zsys_freebsd_arm64.go generated vendored Normal file
View file

@ -0,0 +1,32 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_freebsd.go
package socket
type iovec struct {
Base *byte
Len uint64
}
type msghdr struct {
Name *byte
Namelen uint32
Pad_cgo_0 [4]byte
Iov *iovec
Iovlen int32
Pad_cgo_1 [4]byte
Control *byte
Controllen uint32
Flags int32
}
type cmsghdr struct {
Len uint32
Level int32
Type int32
}
const (
sizeofIovec = 0x10
sizeofMsghdr = 0x30
)

30
vendor/golang.org/x/net/internal/socket/zsys_freebsd_riscv64.go generated vendored Normal file
View file

@ -0,0 +1,30 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_freebsd.go
package socket
type iovec struct {
Base *byte
Len uint64
}
type msghdr struct {
Name *byte
Namelen uint32
Iov *iovec
Iovlen int32
Control *byte
Controllen uint32
Flags int32
}
type cmsghdr struct {
Len uint32
Level int32
Type int32
}
const (
sizeofIovec = 0x10
sizeofMsghdr = 0x30
)

35
vendor/golang.org/x/net/internal/socket/zsys_linux_386.go generated vendored Normal file
View file

@ -0,0 +1,35 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_linux.go
package socket
type iovec struct {
Base *byte
Len uint32
}
type msghdr struct {
Name *byte
Namelen uint32
Iov *iovec
Iovlen uint32
Control *byte
Controllen uint32
Flags int32
}
type mmsghdr struct {
Hdr msghdr
Len uint32
}
type cmsghdr struct {
Len uint32
Level int32
Type int32
}
const (
sizeofIovec = 0x8
sizeofMsghdr = 0x1c
)

38
vendor/golang.org/x/net/internal/socket/zsys_linux_amd64.go generated vendored Normal file
View file

@ -0,0 +1,38 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_linux.go
package socket
type iovec struct {
Base *byte
Len uint64
}
type msghdr struct {
Name *byte
Namelen uint32
Pad_cgo_0 [4]byte
Iov *iovec
Iovlen uint64
Control *byte
Controllen uint64
Flags int32
Pad_cgo_1 [4]byte
}
type mmsghdr struct {
Hdr msghdr
Len uint32
Pad_cgo_0 [4]byte
}
type cmsghdr struct {
Len uint64
Level int32
Type int32
}
const (
sizeofIovec = 0x10
sizeofMsghdr = 0x38
)

35
vendor/golang.org/x/net/internal/socket/zsys_linux_arm.go generated vendored Normal file
View file

@ -0,0 +1,35 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_linux.go
package socket
type iovec struct {
Base *byte
Len uint32
}
type msghdr struct {
Name *byte
Namelen uint32
Iov *iovec
Iovlen uint32
Control *byte
Controllen uint32
Flags int32
}
type mmsghdr struct {
Hdr msghdr
Len uint32
}
type cmsghdr struct {
Len uint32
Level int32
Type int32
}
const (
sizeofIovec = 0x8
sizeofMsghdr = 0x1c
)

38
vendor/golang.org/x/net/internal/socket/zsys_linux_arm64.go generated vendored Normal file
View file

@ -0,0 +1,38 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_linux.go
package socket
type iovec struct {
Base *byte
Len uint64
}
type msghdr struct {
Name *byte
Namelen uint32
Pad_cgo_0 [4]byte
Iov *iovec
Iovlen uint64
Control *byte
Controllen uint64
Flags int32
Pad_cgo_1 [4]byte
}
type mmsghdr struct {
Hdr msghdr
Len uint32
Pad_cgo_0 [4]byte
}
type cmsghdr struct {
Len uint64
Level int32
Type int32
}
const (
sizeofIovec = 0x10
sizeofMsghdr = 0x38
)

40
vendor/golang.org/x/net/internal/socket/zsys_linux_loong64.go generated vendored Normal file
View file

@ -0,0 +1,40 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_linux.go
//go:build loong64
// +build loong64
package socket
type iovec struct {
Base *byte
Len uint64
}
type msghdr struct {
Name *byte
Namelen uint32
Iov *iovec
Iovlen uint64
Control *byte
Controllen uint64
Flags int32
Pad_cgo_0 [4]byte
}
type mmsghdr struct {
Hdr msghdr
Len uint32
Pad_cgo_0 [4]byte
}
type cmsghdr struct {
Len uint64
Level int32
Type int32
}
const (
sizeofIovec = 0x10
sizeofMsghdr = 0x38
)

35
vendor/golang.org/x/net/internal/socket/zsys_linux_mips.go generated vendored Normal file
View file

@ -0,0 +1,35 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_linux.go
package socket
type iovec struct {
Base *byte
Len uint32
}
type msghdr struct {
Name *byte
Namelen uint32
Iov *iovec
Iovlen uint32
Control *byte
Controllen uint32
Flags int32
}
type mmsghdr struct {
Hdr msghdr
Len uint32
}
type cmsghdr struct {
Len uint32
Level int32
Type int32
}
const (
sizeofIovec = 0x8
sizeofMsghdr = 0x1c
)

38
vendor/golang.org/x/net/internal/socket/zsys_linux_mips64.go generated vendored Normal file
View file

@ -0,0 +1,38 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_linux.go
package socket
type iovec struct {
Base *byte
Len uint64
}
type msghdr struct {
Name *byte
Namelen uint32
Pad_cgo_0 [4]byte
Iov *iovec
Iovlen uint64
Control *byte
Controllen uint64
Flags int32
Pad_cgo_1 [4]byte
}
type mmsghdr struct {
Hdr msghdr
Len uint32
Pad_cgo_0 [4]byte
}
type cmsghdr struct {
Len uint64
Level int32
Type int32
}
const (
sizeofIovec = 0x10
sizeofMsghdr = 0x38
)

38
vendor/golang.org/x/net/internal/socket/zsys_linux_mips64le.go generated vendored Normal file
View file

@ -0,0 +1,38 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_linux.go
package socket
type iovec struct {
Base *byte
Len uint64
}
type msghdr struct {
Name *byte
Namelen uint32
Pad_cgo_0 [4]byte
Iov *iovec
Iovlen uint64
Control *byte
Controllen uint64
Flags int32
Pad_cgo_1 [4]byte
}
type mmsghdr struct {
Hdr msghdr
Len uint32
Pad_cgo_0 [4]byte
}
type cmsghdr struct {
Len uint64
Level int32
Type int32
}
const (
sizeofIovec = 0x10
sizeofMsghdr = 0x38
)

35
vendor/golang.org/x/net/internal/socket/zsys_linux_mipsle.go generated vendored Normal file
View file

@ -0,0 +1,35 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_linux.go
package socket
type iovec struct {
Base *byte
Len uint32
}
type msghdr struct {
Name *byte
Namelen uint32
Iov *iovec
Iovlen uint32
Control *byte
Controllen uint32
Flags int32
}
type mmsghdr struct {
Hdr msghdr
Len uint32
}
type cmsghdr struct {
Len uint32
Level int32
Type int32
}
const (
sizeofIovec = 0x8
sizeofMsghdr = 0x1c
)

35
vendor/golang.org/x/net/internal/socket/zsys_linux_ppc.go generated vendored Normal file
View file

@ -0,0 +1,35 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_linux.go
package socket
type iovec struct {
Base *byte
Len uint32
}
type msghdr struct {
Name *byte
Namelen uint32
Iov *iovec
Iovlen uint32
Control *byte
Controllen uint32
Flags int32
}
type mmsghdr struct {
Hdr msghdr
Len uint32
}
type cmsghdr struct {
Len uint32
Level int32
Type int32
}
const (
sizeofIovec = 0x8
sizeofMsghdr = 0x1c
)

38
vendor/golang.org/x/net/internal/socket/zsys_linux_ppc64.go generated vendored Normal file
View file

@ -0,0 +1,38 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_linux.go
package socket
type iovec struct {
Base *byte
Len uint64
}
type msghdr struct {
Name *byte
Namelen uint32
Pad_cgo_0 [4]byte
Iov *iovec
Iovlen uint64
Control *byte
Controllen uint64
Flags int32
Pad_cgo_1 [4]byte
}
type mmsghdr struct {
Hdr msghdr
Len uint32
Pad_cgo_0 [4]byte
}
type cmsghdr struct {
Len uint64
Level int32
Type int32
}
const (
sizeofIovec = 0x10
sizeofMsghdr = 0x38
)

38
vendor/golang.org/x/net/internal/socket/zsys_linux_ppc64le.go generated vendored Normal file
View file

@ -0,0 +1,38 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_linux.go
package socket
type iovec struct {
Base *byte
Len uint64
}
type msghdr struct {
Name *byte
Namelen uint32
Pad_cgo_0 [4]byte
Iov *iovec
Iovlen uint64
Control *byte
Controllen uint64
Flags int32
Pad_cgo_1 [4]byte
}
type mmsghdr struct {
Hdr msghdr
Len uint32
Pad_cgo_0 [4]byte
}
type cmsghdr struct {
Len uint64
Level int32
Type int32
}
const (
sizeofIovec = 0x10
sizeofMsghdr = 0x38
)

40
vendor/golang.org/x/net/internal/socket/zsys_linux_riscv64.go generated vendored Normal file
View file

@ -0,0 +1,40 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_linux.go
//go:build riscv64
// +build riscv64
package socket
type iovec struct {
Base *byte
Len uint64
}
type msghdr struct {
Name *byte
Namelen uint32
Iov *iovec
Iovlen uint64
Control *byte
Controllen uint64
Flags int32
Pad_cgo_0 [4]byte
}
type mmsghdr struct {
Hdr msghdr
Len uint32
Pad_cgo_0 [4]byte
}
type cmsghdr struct {
Len uint64
Level int32
Type int32
}
const (
sizeofIovec = 0x10
sizeofMsghdr = 0x38
)

38
vendor/golang.org/x/net/internal/socket/zsys_linux_s390x.go generated vendored Normal file
View file

@ -0,0 +1,38 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_linux.go
package socket
type iovec struct {
Base *byte
Len uint64
}
type msghdr struct {
Name *byte
Namelen uint32
Pad_cgo_0 [4]byte
Iov *iovec
Iovlen uint64
Control *byte
Controllen uint64
Flags int32
Pad_cgo_1 [4]byte
}
type mmsghdr struct {
Hdr msghdr
Len uint32
Pad_cgo_0 [4]byte
}
type cmsghdr struct {
Len uint64
Level int32
Type int32
}
const (
sizeofIovec = 0x10
sizeofMsghdr = 0x38
)

35
vendor/golang.org/x/net/internal/socket/zsys_netbsd_386.go generated vendored Normal file
View file

@ -0,0 +1,35 @@
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
// cgo -godefs defs_netbsd.go
package socket
type iovec struct {
Base *byte
Len uint32
}
type msghdr struct {
Name *byte
Namelen uint32
Iov *iovec
Iovlen int32
Control *byte
Controllen uint32
Flags int32
}
type mmsghdr struct {
Hdr msghdr
Len uint32
}
type cmsghdr struct {
Len uint32
Level int32
Type int32
}
const (
sizeofIovec = 0x8
sizeofMsghdr = 0x1c
)

Some files were not shown because too many files have changed in this diff Show more