1// Copyright 2018 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5// Berkeley packet filter for Darwin 6 7package syscall 8 9import ( 10 "unsafe" 11) 12 13// Deprecated: Use golang.org/x/net/bpf instead. 14func BpfStmt(code, k int) *BpfInsn { 15 return &BpfInsn{Code: uint16(code), K: uint32(k)} 16} 17 18// Deprecated: Use golang.org/x/net/bpf instead. 19func BpfJump(code, k, jt, jf int) *BpfInsn { 20 return &BpfInsn{Code: uint16(code), Jt: uint8(jt), Jf: uint8(jf), K: uint32(k)} 21} 22 23// Deprecated: Use golang.org/x/net/bpf instead. 24func BpfBuflen(fd int) (int, error) { 25 var l int 26 err := ioctlPtr(fd, BIOCGBLEN, unsafe.Pointer(&l)) 27 if err != nil { 28 return 0, err 29 } 30 return l, nil 31} 32 33// Deprecated: Use golang.org/x/net/bpf instead. 34func SetBpfBuflen(fd, l int) (int, error) { 35 err := ioctlPtr(fd, BIOCSBLEN, unsafe.Pointer(&l)) 36 if err != nil { 37 return 0, err 38 } 39 return l, nil 40} 41 42// Deprecated: Use golang.org/x/net/bpf instead. 43func BpfDatalink(fd int) (int, error) { 44 var t int 45 err := ioctlPtr(fd, BIOCGDLT, unsafe.Pointer(&t)) 46 if err != nil { 47 return 0, err 48 } 49 return t, nil 50} 51 52// Deprecated: Use golang.org/x/net/bpf instead. 53func SetBpfDatalink(fd, t int) (int, error) { 54 err := ioctlPtr(fd, BIOCSDLT, unsafe.Pointer(&t)) 55 if err != nil { 56 return 0, err 57 } 58 return t, nil 59} 60 61// Deprecated: Use golang.org/x/net/bpf instead. 62func SetBpfPromisc(fd, m int) error { 63 err := ioctlPtr(fd, BIOCPROMISC, unsafe.Pointer(&m)) 64 if err != nil { 65 return err 66 } 67 return nil 68} 69 70// Deprecated: Use golang.org/x/net/bpf instead. 71func FlushBpf(fd int) error { 72 err := ioctlPtr(fd, BIOCFLUSH, nil) 73 if err != nil { 74 return err 75 } 76 return nil 77} 78 79type ivalue struct { 80 name [IFNAMSIZ]byte 81 value int16 82} 83 84// Deprecated: Use golang.org/x/net/bpf instead. 85func BpfInterface(fd int, name string) (string, error) { 86 var iv ivalue 87 err := ioctlPtr(fd, BIOCGETIF, unsafe.Pointer(&iv)) 88 if err != nil { 89 return "", err 90 } 91 return name, nil 92} 93 94// Deprecated: Use golang.org/x/net/bpf instead. 95func SetBpfInterface(fd int, name string) error { 96 var iv ivalue 97 copy(iv.name[:], []byte(name)) 98 err := ioctlPtr(fd, BIOCSETIF, unsafe.Pointer(&iv)) 99 if err != nil { 100 return err 101 } 102 return nil 103} 104 105// Deprecated: Use golang.org/x/net/bpf instead. 106func BpfTimeout(fd int) (*Timeval, error) { 107 var tv Timeval 108 err := ioctlPtr(fd, BIOCGRTIMEOUT, unsafe.Pointer(&tv)) 109 if err != nil { 110 return nil, err 111 } 112 return &tv, nil 113} 114 115// Deprecated: Use golang.org/x/net/bpf instead. 116func SetBpfTimeout(fd int, tv *Timeval) error { 117 err := ioctlPtr(fd, BIOCSRTIMEOUT, unsafe.Pointer(tv)) 118 if err != nil { 119 return err 120 } 121 return nil 122} 123 124// Deprecated: Use golang.org/x/net/bpf instead. 125func BpfStats(fd int) (*BpfStat, error) { 126 var s BpfStat 127 err := ioctlPtr(fd, BIOCGSTATS, unsafe.Pointer(&s)) 128 if err != nil { 129 return nil, err 130 } 131 return &s, nil 132} 133 134// Deprecated: Use golang.org/x/net/bpf instead. 135func SetBpfImmediate(fd, m int) error { 136 err := ioctlPtr(fd, BIOCIMMEDIATE, unsafe.Pointer(&m)) 137 if err != nil { 138 return err 139 } 140 return nil 141} 142 143// Deprecated: Use golang.org/x/net/bpf instead. 144func SetBpf(fd int, i []BpfInsn) error { 145 var p BpfProgram 146 p.Len = uint32(len(i)) 147 p.Insns = (*BpfInsn)(unsafe.Pointer(&i[0])) 148 err := ioctlPtr(fd, BIOCSETF, unsafe.Pointer(&p)) 149 if err != nil { 150 return err 151 } 152 return nil 153} 154 155// Deprecated: Use golang.org/x/net/bpf instead. 156func CheckBpfVersion(fd int) error { 157 var v BpfVersion 158 err := ioctlPtr(fd, BIOCVERSION, unsafe.Pointer(&v)) 159 if err != nil { 160 return err 161 } 162 if v.Major != BPF_MAJOR_VERSION || v.Minor != BPF_MINOR_VERSION { 163 return EINVAL 164 } 165 return nil 166} 167 168// Deprecated: Use golang.org/x/net/bpf instead. 169func BpfHeadercmpl(fd int) (int, error) { 170 var f int 171 err := ioctlPtr(fd, BIOCGHDRCMPLT, unsafe.Pointer(&f)) 172 if err != nil { 173 return 0, err 174 } 175 return f, nil 176} 177 178// Deprecated: Use golang.org/x/net/bpf instead. 179func SetBpfHeadercmpl(fd, f int) error { 180 err := ioctlPtr(fd, BIOCSHDRCMPLT, unsafe.Pointer(&f)) 181 if err != nil { 182 return err 183 } 184 return nil 185} 186