55 lines
1.1 KiB
Go
55 lines
1.1 KiB
Go
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package configs
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import (
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"fmt"
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"os"
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)
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const (
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Wildcard = -1
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)
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// TODO Windows: This can be factored out in the future
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type Device struct {
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// Device type, block, char, etc.
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Type rune `json:"type"`
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// Path to the device.
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Path string `json:"path"`
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// Major is the device's major number.
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Major int64 `json:"major"`
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// Minor is the device's minor number.
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Minor int64 `json:"minor"`
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// Cgroup permissions format, rwm.
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Permissions string `json:"permissions"`
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// FileMode permission bits for the device.
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FileMode os.FileMode `json:"file_mode"`
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// Uid of the device.
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Uid uint32 `json:"uid"`
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// Gid of the device.
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Gid uint32 `json:"gid"`
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}
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func (d *Device) CgroupString() string {
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return fmt.Sprintf("%c %s:%s %s", d.Type, deviceNumberString(d.Major), deviceNumberString(d.Minor), d.Permissions)
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}
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func (d *Device) Mkdev() int {
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return int((d.Major << 8) | (d.Minor & 0xff) | ((d.Minor & 0xfff00) << 12))
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}
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// deviceNumberString converts the device number to a string return result.
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func deviceNumberString(number int64) string {
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if number == Wildcard {
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return "*"
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}
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return fmt.Sprint(number)
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}
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