Added support for Haystack tracing

This commit is contained in:
Alex Antonov 2019-05-08 17:14:04 -05:00 committed by Traefiker Bot
parent 681892148e
commit 9cf6827ccc
274 changed files with 38070 additions and 13436 deletions

View file

@ -7,7 +7,9 @@
package unix
import (
"bytes"
"runtime"
"sort"
"sync"
"syscall"
"unsafe"
@ -50,15 +52,35 @@ func errnoErr(e syscall.Errno) error {
return e
}
// clen returns the index of the first NULL byte in n or len(n) if n contains no
// NULL byte or len(n) if n contains no NULL byte
func clen(n []byte) int {
for i := 0; i < len(n); i++ {
if n[i] == 0 {
return i
}
// ErrnoName returns the error name for error number e.
func ErrnoName(e syscall.Errno) string {
i := sort.Search(len(errorList), func(i int) bool {
return errorList[i].num >= e
})
if i < len(errorList) && errorList[i].num == e {
return errorList[i].name
}
return len(n)
return ""
}
// SignalName returns the signal name for signal number s.
func SignalName(s syscall.Signal) string {
i := sort.Search(len(signalList), func(i int) bool {
return signalList[i].num >= s
})
if i < len(signalList) && signalList[i].num == s {
return signalList[i].name
}
return ""
}
// clen returns the index of the first NULL byte in n or len(n) if n contains no NULL byte.
func clen(n []byte) int {
i := bytes.IndexByte(n, 0)
if i == -1 {
i = len(n)
}
return i
}
// Mmap manager, for use by operating system-specific implementations.
@ -149,16 +171,19 @@ func Write(fd int, p []byte) (n int, err error) {
// creation of IPv6 sockets to return EAFNOSUPPORT.
var SocketDisableIPv6 bool
// Sockaddr represents a socket address.
type Sockaddr interface {
sockaddr() (ptr unsafe.Pointer, len _Socklen, err error) // lowercase; only we can define Sockaddrs
}
// SockaddrInet4 implements the Sockaddr interface for AF_INET type sockets.
type SockaddrInet4 struct {
Port int
Addr [4]byte
raw RawSockaddrInet4
}
// SockaddrInet6 implements the Sockaddr interface for AF_INET6 type sockets.
type SockaddrInet6 struct {
Port int
ZoneId uint32
@ -166,6 +191,7 @@ type SockaddrInet6 struct {
raw RawSockaddrInet6
}
// SockaddrUnix implements the Sockaddr interface for AF_UNIX type sockets.
type SockaddrUnix struct {
Name string
raw RawSockaddrUnix
@ -193,7 +219,14 @@ func Getpeername(fd int) (sa Sockaddr, err error) {
if err = getpeername(fd, &rsa, &len); err != nil {
return
}
return anyToSockaddr(&rsa)
return anyToSockaddr(fd, &rsa)
}
func GetsockoptByte(fd, level, opt int) (value byte, err error) {
var n byte
vallen := _Socklen(1)
err = getsockopt(fd, level, opt, unsafe.Pointer(&n), &vallen)
return n, err
}
func GetsockoptInt(fd, level, opt int) (value int, err error) {
@ -203,6 +236,54 @@ func GetsockoptInt(fd, level, opt int) (value int, err error) {
return int(n), err
}
func GetsockoptInet4Addr(fd, level, opt int) (value [4]byte, err error) {
vallen := _Socklen(4)
err = getsockopt(fd, level, opt, unsafe.Pointer(&value[0]), &vallen)
return value, err
}
func GetsockoptIPMreq(fd, level, opt int) (*IPMreq, error) {
var value IPMreq
vallen := _Socklen(SizeofIPMreq)
err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
return &value, err
}
func GetsockoptIPv6Mreq(fd, level, opt int) (*IPv6Mreq, error) {
var value IPv6Mreq
vallen := _Socklen(SizeofIPv6Mreq)
err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
return &value, err
}
func GetsockoptIPv6MTUInfo(fd, level, opt int) (*IPv6MTUInfo, error) {
var value IPv6MTUInfo
vallen := _Socklen(SizeofIPv6MTUInfo)
err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
return &value, err
}
func GetsockoptICMPv6Filter(fd, level, opt int) (*ICMPv6Filter, error) {
var value ICMPv6Filter
vallen := _Socklen(SizeofICMPv6Filter)
err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
return &value, err
}
func GetsockoptLinger(fd, level, opt int) (*Linger, error) {
var linger Linger
vallen := _Socklen(SizeofLinger)
err := getsockopt(fd, level, opt, unsafe.Pointer(&linger), &vallen)
return &linger, err
}
func GetsockoptTimeval(fd, level, opt int) (*Timeval, error) {
var tv Timeval
vallen := _Socklen(unsafe.Sizeof(tv))
err := getsockopt(fd, level, opt, unsafe.Pointer(&tv), &vallen)
return &tv, err
}
func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, err error) {
var rsa RawSockaddrAny
var len _Socklen = SizeofSockaddrAny
@ -210,7 +291,7 @@ func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, err error) {
return
}
if rsa.Addr.Family != AF_UNSPEC {
from, err = anyToSockaddr(&rsa)
from, err = anyToSockaddr(fd, &rsa)
}
return
}
@ -302,3 +383,12 @@ func SetNonblock(fd int, nonblocking bool) (err error) {
_, err = fcntl(fd, F_SETFL, flag)
return err
}
// Exec calls execve(2), which replaces the calling executable in the process
// tree. argv0 should be the full path to an executable ("/bin/ls") and the
// executable name should also be the first argument in argv (["ls", "-l"]).
// envv are the environment variables that should be passed to the new
// process (["USER=go", "PWD=/tmp"]).
func Exec(argv0 string, argv []string, envv []string) error {
return syscall.Exec(argv0, argv, envv)
}