OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgo/] [go/] [syscall/] [bpf_bsd.go] - Blame information for rev 747

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 747 jeremybenn 
// Copyright 2011 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 
// +build darwin freebsd netbsd openbsd
6 
 
7 
// Berkeley packet filter for BSD variants
8 
 
9 
package syscall
10 
 
11 
import (
12 
        "unsafe"
13 
)
14 
 
15 
func BpfStmt(code, k int) *BpfInsn {
16 
        return &BpfInsn{Code: uint16(code), K: uint32(k)}
17 
}
18 
 
19 
func 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 
func BpfBuflen(fd int) (int, error) {
24 
        var l int
25 
        _, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCGBLEN, uintptr(unsafe.Pointer(&l)))
26 
        if err != 0 {
27 
                return 0, Errno(err)
28 
        }
29 
        return l, nil
30 
}
31 
 
32 
func SetBpfBuflen(fd, l int) (int, error) {
33 
        _, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCSBLEN, uintptr(unsafe.Pointer(&l)))
34 
        if err != 0 {
35 
                return 0, Errno(err)
36 
        }
37 
        return l, nil
38 
}
39 
 
40 
func BpfDatalink(fd int) (int, error) {
41 
        var t int
42 
        _, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCGDLT, uintptr(unsafe.Pointer(&t)))
43 
        if err != 0 {
44 
                return 0, Errno(err)
45 
        }
46 
        return t, nil
47 
}
48 
 
49 
func SetBpfDatalink(fd, t int) (int, error) {
50 
        _, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCSDLT, uintptr(unsafe.Pointer(&t)))
51 
        if err != 0 {
52 
                return 0, Errno(err)
53 
        }
54 
        return t, nil
55 
}
56 
 
57 
func SetBpfPromisc(fd, m int) error {
58 
        _, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCPROMISC, uintptr(unsafe.Pointer(&m)))
59 
        if err != 0 {
60 
                return Errno(err)
61 
        }
62 
        return nil
63 
}
64 
 
65 
func FlushBpf(fd int) error {
66 
        _, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCFLUSH, 0)
67 
        if err != 0 {
68 
                return Errno(err)
69 
        }
70 
        return nil
71 
}
72 
 
73 
type ivalue struct {
74 
        name  [IFNAMSIZ]byte
75 
        value int16
76 
}
77 
 
78 
func BpfInterface(fd int, name string) (string, error) {
79 
        var iv ivalue
80 
        _, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCGETIF, uintptr(unsafe.Pointer(&iv)))
81 
        if err != 0 {
82 
                return "", Errno(err)
83 
        }
84 
        return name, nil
85 
}
86 
 
87 
func SetBpfInterface(fd int, name string) error {
88 
        var iv ivalue
89 
        copy(iv.name[:], []byte(name))
90 
        _, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCSETIF, uintptr(unsafe.Pointer(&iv)))
91 
        if err != 0 {
92 
                return Errno(err)
93 
        }
94 
        return nil
95 
}
96 
 
97 
func BpfTimeout(fd int) (*Timeval, error) {
98 
        var tv Timeval
99 
        _, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCGRTIMEOUT, uintptr(unsafe.Pointer(&tv)))
100 
        if err != 0 {
101 
                return nil, Errno(err)
102 
        }
103 
        return &tv, nil
104 
}
105 
 
106 
func SetBpfTimeout(fd int, tv *Timeval) error {
107 
        _, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCSRTIMEOUT, uintptr(unsafe.Pointer(tv)))
108 
        if err != 0 {
109 
                return Errno(err)
110 
        }
111 
        return nil
112 
}
113 
 
114 
func BpfStats(fd int) (*BpfStat, error) {
115 
        var s BpfStat
116 
        _, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCGSTATS, uintptr(unsafe.Pointer(&s)))
117 
        if err != 0 {
118 
                return nil, Errno(err)
119 
        }
120 
        return &s, nil
121 
}
122 
 
123 
func SetBpfImmediate(fd, m int) error {
124 
        _, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCIMMEDIATE, uintptr(unsafe.Pointer(&m)))
125 
        if err != 0 {
126 
                return Errno(err)
127 
        }
128 
        return nil
129 
}
130 
 
131 
func SetBpf(fd int, i []BpfInsn) error {
132 
        var p BpfProgram
133 
        p.Len = uint32(len(i))
134 
        p.Insns = (*BpfInsn)(unsafe.Pointer(&i[0]))
135 
        _, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCSETF, uintptr(unsafe.Pointer(&p)))
136 
        if err != 0 {
137 
                return Errno(err)
138 
        }
139 
        return nil
140 
}
141 
 
142 
func CheckBpfVersion(fd int) error {
143 
        var v BpfVersion
144 
        _, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCVERSION, uintptr(unsafe.Pointer(&v)))
145 
        if err != 0 {
146 
                return Errno(err)
147 
        }
148 
        if v.Major != BPF_MAJOR_VERSION || v.Minor != BPF_MINOR_VERSION {
149 
                return EINVAL
150 
        }
151 
        return nil
152 
}
153 
 
154 
func BpfHeadercmpl(fd int) (int, error) {
155 
        var f int
156 
        _, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCGHDRCMPLT, uintptr(unsafe.Pointer(&f)))
157 
        if err != 0 {
158 
                return 0, Errno(err)
159 
        }
160 
        return f, nil
161 
}
162 
 
163 
func SetBpfHeadercmpl(fd, f int) error {
164 
        _, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCSHDRCMPLT, uintptr(unsafe.Pointer(&f)))
165 
        if err != 0 {
166 
                return Errno(err)
167 
        }
168 
        return nil
169 
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.