mirror of https://github.com/docker/cli.git
bump syndtr/gocapability d98352740cb2c55f81556b63d4a1ec64c5a319c2
full diff: 2c00daeb6c...d98352740c
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
parent
1962ec66bb
commit
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@ -70,7 +70,7 @@ github.com/shurcooL/sanitized_anchor_name 10ef21a441db47d8b13ebcc5fd23
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github.com/sirupsen/logrus 8bdbc7bcc01dcbb8ec23dc8a28e332258d25251f # v1.4.1
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github.com/spf13/cobra ef82de70bb3f60c65fb8eebacbb2d122ef517385 # v0.0.3
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github.com/spf13/pflag 4cb166e4f25ac4e8016a3595bbf7ea2e9aa85a2c https://github.com/thaJeztah/pflag.git # temporary fork with https://github.com/spf13/pflag/pull/170 applied, which isn't merged yet upstream
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github.com/syndtr/gocapability 2c00daeb6c3b45114c80ac44119e7b8801fdd852
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github.com/syndtr/gocapability d98352740cb2c55f81556b63d4a1ec64c5a319c2
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github.com/theupdateframework/notary d6e1431feb32348e0650bf7551ac5cffd01d857b # v0.6.1
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github.com/tonistiigi/fsutil 3bbb99cdbd76619ab717299830c60f6f2a533a6b
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github.com/tonistiigi/units 6950e57a87eaf136bbe44ef2ec8e75b9e3569de2
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@ -10,42 +10,42 @@ package capability
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type Capabilities interface {
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// Get check whether a capability present in the given
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// capabilities set. The 'which' value should be one of EFFECTIVE,
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// PERMITTED, INHERITABLE or BOUNDING.
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// PERMITTED, INHERITABLE, BOUNDING or AMBIENT.
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Get(which CapType, what Cap) bool
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// Empty check whether all capability bits of the given capabilities
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// set are zero. The 'which' value should be one of EFFECTIVE,
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// PERMITTED, INHERITABLE or BOUNDING.
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// PERMITTED, INHERITABLE, BOUNDING or AMBIENT.
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Empty(which CapType) bool
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// Full check whether all capability bits of the given capabilities
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// set are one. The 'which' value should be one of EFFECTIVE,
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// PERMITTED, INHERITABLE or BOUNDING.
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// PERMITTED, INHERITABLE, BOUNDING or AMBIENT.
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Full(which CapType) bool
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// Set sets capabilities of the given capabilities sets. The
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// 'which' value should be one or combination (OR'ed) of EFFECTIVE,
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// PERMITTED, INHERITABLE or BOUNDING.
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// PERMITTED, INHERITABLE, BOUNDING or AMBIENT.
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Set(which CapType, caps ...Cap)
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// Unset unsets capabilities of the given capabilities sets. The
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// 'which' value should be one or combination (OR'ed) of EFFECTIVE,
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// PERMITTED, INHERITABLE or BOUNDING.
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// PERMITTED, INHERITABLE, BOUNDING or AMBIENT.
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Unset(which CapType, caps ...Cap)
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// Fill sets all bits of the given capabilities kind to one. The
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// 'kind' value should be one or combination (OR'ed) of CAPS or
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// BOUNDS.
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// 'kind' value should be one or combination (OR'ed) of CAPS,
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// BOUNDS or AMBS.
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Fill(kind CapType)
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// Clear sets all bits of the given capabilities kind to zero. The
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// 'kind' value should be one or combination (OR'ed) of CAPS or
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// BOUNDS.
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// 'kind' value should be one or combination (OR'ed) of CAPS,
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// BOUNDS or AMBS.
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Clear(kind CapType)
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// String return current capabilities state of the given capabilities
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// set as string. The 'which' value should be one of EFFECTIVE,
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// PERMITTED, INHERITABLE or BOUNDING.
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// PERMITTED, INHERITABLE BOUNDING or AMBIENT
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StringCap(which CapType) string
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// String return current capabilities state as string.
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@ -60,13 +60,74 @@ type Capabilities interface {
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Apply(kind CapType) error
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}
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// NewPid create new initialized Capabilities object for given pid when it
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// is nonzero, or for the current pid if pid is 0
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// NewPid initializes a new Capabilities object for given pid when
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// it is nonzero, or for the current process if pid is 0.
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//
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// Deprecated: Replace with NewPid2. For example, replace:
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//
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// c, err := NewPid(0)
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// if err != nil {
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// return err
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// }
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//
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// with:
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//
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// c, err := NewPid2(0)
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// if err != nil {
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// return err
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// }
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// err = c.Load()
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// if err != nil {
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// return err
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// }
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func NewPid(pid int) (Capabilities, error) {
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c, err := newPid(pid)
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if err != nil {
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return c, err
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}
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err = c.Load()
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return c, err
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}
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// NewPid2 initializes a new Capabilities object for given pid when
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// it is nonzero, or for the current process if pid is 0. This
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// does not load the process's current capabilities; to do that you
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// must call Load explicitly.
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func NewPid2(pid int) (Capabilities, error) {
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return newPid(pid)
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}
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// NewFile create new initialized Capabilities object for given named file.
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func NewFile(name string) (Capabilities, error) {
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return newFile(name)
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// NewFile initializes a new Capabilities object for given file path.
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//
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// Deprecated: Replace with NewFile2. For example, replace:
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//
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// c, err := NewFile(path)
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// if err != nil {
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// return err
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// }
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//
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// with:
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//
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// c, err := NewFile2(path)
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// if err != nil {
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// return err
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// }
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// err = c.Load()
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// if err != nil {
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// return err
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// }
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func NewFile(path string) (Capabilities, error) {
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c, err := newFile(path)
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if err != nil {
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return c, err
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}
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err = c.Load()
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return c, err
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}
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// NewFile2 creates a new initialized Capabilities object for given
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// file path. This does not load the process's current capabilities;
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// to do that you must call Load explicitly.
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func NewFile2(path string) (Capabilities, error) {
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return newFile(path)
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}
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@ -103,21 +103,17 @@ func newPid(pid int) (c Capabilities, err error) {
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case linuxCapVer1:
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p := new(capsV1)
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p.hdr.version = capVers
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p.hdr.pid = pid
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p.hdr.pid = int32(pid)
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c = p
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case linuxCapVer2, linuxCapVer3:
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p := new(capsV3)
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p.hdr.version = capVers
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p.hdr.pid = pid
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p.hdr.pid = int32(pid)
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c = p
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default:
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err = errUnknownVers
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return
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}
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err = c.Load()
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if err != nil {
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c = nil
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}
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return
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}
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@ -235,9 +231,10 @@ func (c *capsV1) Apply(kind CapType) error {
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}
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type capsV3 struct {
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hdr capHeader
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data [2]capData
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bounds [2]uint32
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hdr capHeader
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data [2]capData
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bounds [2]uint32
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ambient [2]uint32
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}
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func (c *capsV3) Get(which CapType, what Cap) bool {
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@ -256,6 +253,8 @@ func (c *capsV3) Get(which CapType, what Cap) bool {
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return (1<<uint(what))&c.data[i].inheritable != 0
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case BOUNDING:
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return (1<<uint(what))&c.bounds[i] != 0
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case AMBIENT:
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return (1<<uint(what))&c.ambient[i] != 0
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}
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return false
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@ -275,6 +274,9 @@ func (c *capsV3) getData(which CapType, dest []uint32) {
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case BOUNDING:
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dest[0] = c.bounds[0]
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dest[1] = c.bounds[1]
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case AMBIENT:
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dest[0] = c.ambient[0]
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dest[1] = c.ambient[1]
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}
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}
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@ -313,6 +315,9 @@ func (c *capsV3) Set(which CapType, caps ...Cap) {
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if which&BOUNDING != 0 {
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c.bounds[i] |= 1 << uint(what)
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}
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if which&AMBIENT != 0 {
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c.ambient[i] |= 1 << uint(what)
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}
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}
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}
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if which&BOUNDING != 0 {
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c.bounds[i] &= ^(1 << uint(what))
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}
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if which&AMBIENT != 0 {
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c.ambient[i] &= ^(1 << uint(what))
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}
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}
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}
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@ -353,6 +361,10 @@ func (c *capsV3) Fill(kind CapType) {
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c.bounds[0] = 0xffffffff
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c.bounds[1] = 0xffffffff
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}
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if kind&AMBS == AMBS {
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c.ambient[0] = 0xffffffff
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c.ambient[1] = 0xffffffff
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}
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}
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func (c *capsV3) Clear(kind CapType) {
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c.bounds[0] = 0
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c.bounds[1] = 0
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}
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if kind&AMBS == AMBS {
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c.ambient[0] = 0
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c.ambient[1] = 0
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}
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}
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func (c *capsV3) StringCap(which CapType) (ret string) {
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}
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if strings.HasPrefix(line, "CapB") {
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fmt.Sscanf(line[4:], "nd: %08x%08x", &c.bounds[1], &c.bounds[0])
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break
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continue
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}
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if strings.HasPrefix(line, "CapA") {
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fmt.Sscanf(line[4:], "mb: %08x%08x", &c.ambient[1], &c.ambient[0])
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continue
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}
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}
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f.Close()
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}
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if kind&CAPS == CAPS {
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return capset(&c.hdr, &c.data[0])
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err = capset(&c.hdr, &c.data[0])
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if err != nil {
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return
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}
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}
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if kind&AMBS == AMBS {
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for i := Cap(0); i <= CAP_LAST_CAP; i++ {
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action := pr_CAP_AMBIENT_LOWER
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if c.Get(AMBIENT, i) {
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action = pr_CAP_AMBIENT_RAISE
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}
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err := prctl(pr_CAP_AMBIENT, action, uintptr(i), 0, 0)
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// Ignore EINVAL as not supported on kernels before 4.3
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if errno, ok := err.(syscall.Errno); ok && errno == syscall.EINVAL {
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err = nil
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continue
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}
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}
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}
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return
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func newFile(path string) (c Capabilities, err error) {
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c = &capsFile{path: path}
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err = c.Load()
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if err != nil {
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c = nil
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}
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return
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}
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@ -20,6 +20,8 @@ func (c CapType) String() string {
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return "bounding"
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case CAPS:
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return "caps"
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case AMBIENT:
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return "ambient"
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}
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return "unknown"
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}
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PERMITTED
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INHERITABLE
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BOUNDING
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AMBIENT
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CAPS = EFFECTIVE | PERMITTED | INHERITABLE
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BOUNDS = BOUNDING
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AMBS = AMBIENT
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)
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//go:generate go run enumgen/gen.go
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@ -13,7 +13,7 @@ import (
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type capHeader struct {
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version uint32
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pid int
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pid int32
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}
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type capData struct {
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return
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}
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// not yet in syscall
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const (
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pr_CAP_AMBIENT = 47
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pr_CAP_AMBIENT_IS_SET = uintptr(1)
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pr_CAP_AMBIENT_RAISE = uintptr(2)
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pr_CAP_AMBIENT_LOWER = uintptr(3)
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pr_CAP_AMBIENT_CLEAR_ALL = uintptr(4)
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)
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func prctl(option int, arg2, arg3, arg4, arg5 uintptr) (err error) {
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_, _, e1 := syscall.Syscall6(syscall.SYS_PRCTL, uintptr(option), arg2, arg3, arg4, arg5, 0)
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if e1 != 0 {
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