#7201

Committed 20 Sep 2016 - 16:03 coverage decreased (-0.1%) to 73.98%

Build # #7201

Build Type

Pull #2501

circleci

Committed by

brb

Commit Message

Update weaveworks/mesh submodule

Pull Request Pull Request #2501: Reject empty peers

Run Details

6616 of 8943 relevant lines covered (73.98%)

121129.01 hits per line

Source File
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/net/ethtool.go

package net

import "fmt"
import "syscall"
import "unsafe"

const (
        SIOCETHTOOL     = 0x8946     // linux/sockios.h
        ETHTOOL_STXCSUM = 0x00000017 // linux/ethtool.h
        IFNAMSIZ        = 16         // linux/if.h
)

// linux/if.h 'struct ifreq'
type IFReqData struct {
        Name [IFNAMSIZ]byte
        Data uintptr
}

// linux/ethtool.h 'struct ethtool_value'
type EthtoolValue struct {
        Cmd  uint32
        Data uint32
}

// Disable TX checksum offload on specified interface
func EthtoolTXOff(name string) error {
        if len(name)+1 > IFNAMSIZ {
                return fmt.Errorf("name too long")
        }

        value := EthtoolValue{ETHTOOL_STXCSUM, 0}
        request := IFReqData{Data: uintptr(unsafe.Pointer(&value))}

        copy(request.Name[:], name)

        socket, err := syscall.Socket(syscall.AF_INET, syscall.SOCK_DGRAM, 0)
        if err != nil {
                return err
        }
        defer syscall.Close(socket)

        _, _, errno := syscall.RawSyscall(syscall.SYS_IOCTL,
                uintptr(socket),
                uintptr(SIOCETHTOOL),
                uintptr(unsafe.Pointer(&request)))

        if errno != 0 {
                return errno
        }

        return nil
}

1	package net
2
3	import "fmt"
4	import "syscall"
5	import "unsafe"
6
7	const (
8	SIOCETHTOOL = 0x8946 // linux/sockios.h
9	ETHTOOL_STXCSUM = 0x00000017 // linux/ethtool.h
10	IFNAMSIZ = 16 // linux/if.h
11	)
12
13	// linux/if.h 'struct ifreq'
14	type IFReqData struct {
15	Name [IFNAMSIZ]byte
16	Data uintptr
17	}
18
19	// linux/ethtool.h 'struct ethtool_value'
20	type EthtoolValue struct {
21	Cmd uint32
22	Data uint32
23	}
24
25	// Disable TX checksum offload on specified interface
26	func EthtoolTXOff(name string) error {	!
27	if len(name)+1 > IFNAMSIZ {	!
28	return fmt.Errorf("name too long")	!
29	}	!
30
31	value := EthtoolValue{ETHTOOL_STXCSUM, 0}	!
UNCOV 32	request := IFReqData{Data: uintptr(unsafe.Pointer(&value))}	!
UNCOV 33		!
UNCOV 34	copy(request.Name[:], name)	!
35		!
36	socket, err := syscall.Socket(syscall.AF_INET, syscall.SOCK_DGRAM, 0)	!
37	if err != nil {	!
38	return err	!
UNCOV 39	}	!
40	defer syscall.Close(socket)	!
41		!
42	_, _, errno := syscall.RawSyscall(syscall.SYS_IOCTL,	!
43	uintptr(socket),	!
44	uintptr(SIOCETHTOOL),	!
45	uintptr(unsafe.Pointer(&request)))	!
46		!
47	if errno != 0 {	!
48	return errno	!
49	}	!
50
51	return nil	!
52	}

weaveworks / weave / #7201

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