idmap

package

v0.0.0-...-e623927 Latest Latest Go to latest Published: Mar 1, 2018 License: Apache-2.0 Imports: 14 Imported by: 0

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Repository

github.com/pcdummy/lxd

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Documentation ¶

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Index ¶

Variables
func ShiftACL(path string, shiftIds func(uid int64, gid int64) (int64, int64)) error
func ShiftOwner(basepath string, path string, uid int, gid int) error
type ByHostid
type IdRange
- func (i *IdRange) Contains(id int64) bool
type IdmapEntry
- func Extend(slice []IdmapEntry, element IdmapEntry) []IdmapEntry
type IdmapSet
- func CurrentIdmapSet() (*IdmapSet, error)
- func DefaultIdmapSet(username string) (*IdmapSet, error)

Constants ¶

This section is empty.

Variables ¶

View Source

var ErrHostIdIsSubId = fmt.Errorf("Host id is in the range of subids")

Functions ¶

func ShiftACL ¶

func ShiftACL(path string, shiftIds func(uid int64, gid int64) (int64, int64)) error

ShiftACL updates uid and gid for file ACLs when entering/exiting a namespace

func ShiftOwner ¶

func ShiftOwner(basepath string, path string, uid int, gid int) error

ShiftOwner updates uid and gid for a file when entering/exiting a namespace

Types ¶

type ByHostid ¶

type ByHostid []*IdmapEntry

func (ByHostid) Len ¶

func (s ByHostid) Len() int

func (ByHostid) Less ¶

func (s ByHostid) Less(i, j int) bool

func (ByHostid) Swap ¶

func (s ByHostid) Swap(i, j int)

type IdRange ¶

type IdRange struct {
	Isuid   bool
	Isgid   bool
	Startid int64
	Endid   int64
}

func (*IdRange) Contains ¶

func (i *IdRange) Contains(id int64) bool

type IdmapEntry ¶

type IdmapEntry struct {
	Isuid    bool
	Isgid    bool
	Hostid   int64 // id as seen on the host - i.e. 100000
	Nsid     int64 // id as seen in the ns - i.e. 0
	Maprange int64
}

* One entry in id mapping set - a single range of either * uid or gid mappings.

func Extend ¶

func Extend(slice []IdmapEntry, element IdmapEntry) []IdmapEntry

taken from http://blog.golang.org/slices (which is under BSD licence)

func (*IdmapEntry) HostidsIntersect ¶

func (e *IdmapEntry) HostidsIntersect(i IdmapEntry) bool

func (*IdmapEntry) Intersects ¶

func (e *IdmapEntry) Intersects(i IdmapEntry) bool

func (*IdmapEntry) ToLxcString ¶

func (e *IdmapEntry) ToLxcString() []string

func (*IdmapEntry) Usable ¶

func (e *IdmapEntry) Usable() error

type IdmapSet ¶

type IdmapSet struct {
	Idmap []IdmapEntry
}

func CurrentIdmapSet ¶

func CurrentIdmapSet() (*IdmapSet, error)

* Create an idmap of the current allocation

func DefaultIdmapSet ¶

func DefaultIdmapSet(username string) (*IdmapSet, error)

* Create a new default idmap

func (*IdmapSet) AddSafe ¶

func (m *IdmapSet) AddSafe(i IdmapEntry) error

AddSafe adds an entry to the idmap set, breaking apart any ranges that the * new idmap intersects with in the process.

func (IdmapSet) Append ¶

func (m IdmapSet) Append(s string) (IdmapSet, error)

func (IdmapSet) HostidsIntersect ¶

func (m IdmapSet) HostidsIntersect(i IdmapEntry) bool

func (IdmapSet) Intersects ¶

func (m IdmapSet) Intersects(i IdmapEntry) bool

func (IdmapSet) Len ¶

func (m IdmapSet) Len() int

func (IdmapSet) Less ¶

func (m IdmapSet) Less(i, j int) bool

func (*IdmapSet) ShiftFile ¶

func (set *IdmapSet) ShiftFile(p string) error

func (IdmapSet) ShiftFromNs ¶

func (m IdmapSet) ShiftFromNs(uid int64, gid int64) (int64, int64)

func (IdmapSet) ShiftIntoNs ¶

func (m IdmapSet) ShiftIntoNs(uid int64, gid int64) (int64, int64)

func (*IdmapSet) ShiftRootfs ¶

func (set *IdmapSet) ShiftRootfs(p string) error

func (IdmapSet) Swap ¶

func (m IdmapSet) Swap(i, j int)

func (IdmapSet) ToLxcString ¶

func (m IdmapSet) ToLxcString() []string

func (*IdmapSet) UidshiftFromContainer ¶

func (set *IdmapSet) UidshiftFromContainer(dir string, testmode bool) error

func (*IdmapSet) UidshiftIntoContainer ¶

func (set *IdmapSet) UidshiftIntoContainer(dir string, testmode bool) error

func (*IdmapSet) UnshiftRootfs ¶

func (set *IdmapSet) UnshiftRootfs(p string) error

func (IdmapSet) Usable ¶

func (m IdmapSet) Usable() error

func (IdmapSet) ValidRanges ¶

func (m IdmapSet) ValidRanges() ([]*IdRange, error)

Source Files ¶

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