diff options
Diffstat (limited to 'pkg/rootless/rootless_linux.go')
| -rw-r--r-- | pkg/rootless/rootless_linux.go | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/pkg/rootless/rootless_linux.go b/pkg/rootless/rootless_linux.go index cff6de5a3..e4d89294e 100644 --- a/pkg/rootless/rootless_linux.go +++ b/pkg/rootless/rootless_linux.go @@ -25,6 +25,7 @@ import ( "github.com/containers/storage/pkg/unshare" "github.com/pkg/errors" "github.com/sirupsen/logrus" + "github.com/syndtr/gocapability/capability" "golang.org/x/sys/unix" ) @@ -114,8 +115,14 @@ func GetRootlessGID() int { func tryMappingTool(uid bool, pid int, hostID int, mappings []idtools.IDMap) error { var tool = "newuidmap" + mode := os.ModeSetuid + cap := capability.CAP_SETUID + idtype := "setuid" if !uid { tool = "newgidmap" + mode = os.ModeSetgid + cap = capability.CAP_SETGID + idtype = "setgid" } path, err := exec.LookPath(tool) if err != nil { @@ -147,7 +154,13 @@ func tryMappingTool(uid bool, pid int, hostID int, mappings []idtools.IDMap) err if output, err := cmd.CombinedOutput(); err != nil { logrus.Errorf("running `%s`: %s", strings.Join(args, " "), output) - return errors.Wrapf(err, "cannot setup namespace using %q", path) + errorStr := fmt.Sprintf("cannot setup namespace using %q", path) + if isSet, err := unshare.IsSetID(cmd.Path, mode, cap); err != nil { + logrus.Errorf("Failed to check for %s on %s: %v", idtype, path, err) + } else if !isSet { + errorStr = fmt.Sprintf("%s: should have %s or have filecaps %s", errorStr, idtype, idtype) + } + return errors.Wrapf(err, errorStr) } return nil } |