containerd/vendor/github.com/opencontainers/runtime-tools/validate/capabilities/validate.go
Krisztian Litkey 43704ca888 nri: add experimental NRI plugin.
Add a common NRI 'service' plugin. It takes care of relaying
requests and respones to and from NRI (external NRI plugins)
and the high-level containerd namespace-independent logic of
applying NRI container adjustments and updates to actual CRI
and other containers.

The namespace-dependent details of the necessary container
manipulation operations are to be implemented by namespace-
specific adaptations. This NRI plugin defines the API which
such adaptations need to implement.

Signed-off-by: Krisztian Litkey <krisztian.litkey@intel.com>
2022-11-28 21:51:06 +02:00

32 lines
652 B
Go

package capabilities
import (
"fmt"
"strings"
"github.com/syndtr/gocapability/capability"
)
// CapValid checks whether a capability is valid
func CapValid(c string, hostSpecific bool) error {
isValid := false
if !strings.HasPrefix(c, "CAP_") {
return fmt.Errorf("capability %s must start with CAP_", c)
}
for _, cap := range capability.List() {
if c == fmt.Sprintf("CAP_%s", strings.ToUpper(cap.String())) {
if hostSpecific && cap > LastCap() {
return fmt.Errorf("%s is not supported on the current host", c)
}
isValid = true
break
}
}
if !isValid {
return fmt.Errorf("invalid capability: %s", c)
}
return nil
}