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authorgVisor bot <gvisor-bot@google.com>2019-07-12 16:19:23 +0000
committergVisor bot <gvisor-bot@google.com>2019-07-12 16:19:23 +0000
commit715afd5da8c2d5aacd7ab64535b92dac1abc3f37 (patch)
tree432c7c1ada560a23f26de6e9b8beefdda97ccdcc /runsc/boot/fds.go
parente3abe5ebdf5e0c98429faee7d57d126d452f7293 (diff)
parent69e0affaecda24b4d193e4592202b55b53afecc3 (diff)
Merge 69e0affa (automated)
Diffstat (limited to 'runsc/boot/fds.go')
-rw-r--r--runsc/boot/fds.go27
1 files changed, 9 insertions, 18 deletions
diff --git a/runsc/boot/fds.go b/runsc/boot/fds.go
index 59e1b46ec..e5de1f3d7 100644
--- a/runsc/boot/fds.go
+++ b/runsc/boot/fds.go
@@ -21,32 +21,23 @@ import (
"gvisor.dev/gvisor/pkg/sentry/fs"
"gvisor.dev/gvisor/pkg/sentry/fs/host"
"gvisor.dev/gvisor/pkg/sentry/kernel"
- "gvisor.dev/gvisor/pkg/sentry/kernel/kdefs"
- "gvisor.dev/gvisor/pkg/sentry/limits"
)
-// createFDMap creates an FD map that contains stdin, stdout, and stderr. If
-// console is true, then ioctl calls will be passed through to the host FD.
+// createFDTable creates an FD table that contains stdin, stdout, and stderr.
+// If console is true, then ioctl calls will be passed through to the host FD.
// Upon success, createFDMap dups then closes stdioFDs.
-func createFDMap(ctx context.Context, l *limits.LimitSet, console bool, stdioFDs []int) (*kernel.FDMap, error) {
+func createFDTable(ctx context.Context, console bool, stdioFDs []int) (*kernel.FDTable, error) {
if len(stdioFDs) != 3 {
return nil, fmt.Errorf("stdioFDs should contain exactly 3 FDs (stdin, stdout, and stderr), but %d FDs received", len(stdioFDs))
}
k := kernel.KernelFromContext(ctx)
- fdm := k.NewFDMap()
- defer fdm.DecRef()
+ fdTable := k.NewFDTable()
+ defer fdTable.DecRef()
mounter := fs.FileOwnerFromContext(ctx)
- // Maps sandbox FD to host FD.
- fdMap := map[int]int{
- 0: stdioFDs[0],
- 1: stdioFDs[1],
- 2: stdioFDs[2],
- }
-
var ttyFile *fs.File
- for appFD, hostFD := range fdMap {
+ for appFD, hostFD := range stdioFDs {
var appFile *fs.File
if console && appFD < 3 {
@@ -80,11 +71,11 @@ func createFDMap(ctx context.Context, l *limits.LimitSet, console bool, stdioFDs
}
// Add the file to the FD map.
- if err := fdm.NewFDAt(kdefs.FD(appFD), appFile, kernel.FDFlags{}, l); err != nil {
+ if err := fdTable.NewFDAt(ctx, int32(appFD), appFile, kernel.FDFlags{}); err != nil {
return nil, err
}
}
- fdm.IncRef()
- return fdm, nil
+ fdTable.IncRef()
+ return fdTable, nil
}