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-rw-r--r--pkg/sentry/fs/dev/BUILD2
-rw-r--r--pkg/sentry/fs/dev/dev.go14
-rw-r--r--pkg/sentry/fs/dev/fs.go37
3 files changed, 2 insertions, 51 deletions
diff --git a/pkg/sentry/fs/dev/BUILD b/pkg/sentry/fs/dev/BUILD
index a9b03d172..59de615fb 100644
--- a/pkg/sentry/fs/dev/BUILD
+++ b/pkg/sentry/fs/dev/BUILD
@@ -20,8 +20,6 @@ go_library(
"//pkg/sentry/context",
"//pkg/sentry/device",
"//pkg/sentry/fs",
- "//pkg/sentry/fs/ashmem",
- "//pkg/sentry/fs/binder",
"//pkg/sentry/fs/fsutil",
"//pkg/sentry/fs/ramfs",
"//pkg/sentry/fs/tmpfs",
diff --git a/pkg/sentry/fs/dev/dev.go b/pkg/sentry/fs/dev/dev.go
index fb6c30ff0..d4bbd9807 100644
--- a/pkg/sentry/fs/dev/dev.go
+++ b/pkg/sentry/fs/dev/dev.go
@@ -20,8 +20,6 @@ import (
"gvisor.dev/gvisor/pkg/sentry/context"
"gvisor.dev/gvisor/pkg/sentry/fs"
- "gvisor.dev/gvisor/pkg/sentry/fs/ashmem"
- "gvisor.dev/gvisor/pkg/sentry/fs/binder"
"gvisor.dev/gvisor/pkg/sentry/fs/ramfs"
"gvisor.dev/gvisor/pkg/sentry/fs/tmpfs"
"gvisor.dev/gvisor/pkg/sentry/usermem"
@@ -81,7 +79,7 @@ func newSymlink(ctx context.Context, target string, msrc *fs.MountSource) *fs.In
}
// New returns the root node of a device filesystem.
-func New(ctx context.Context, msrc *fs.MountSource, binderEnabled bool, ashmemEnabled bool) *fs.Inode {
+func New(ctx context.Context, msrc *fs.MountSource) *fs.Inode {
contents := map[string]*fs.Inode{
"fd": newSymlink(ctx, "/proc/self/fd", msrc),
"stdin": newSymlink(ctx, "/proc/self/fd/0", msrc),
@@ -118,16 +116,6 @@ func New(ctx context.Context, msrc *fs.MountSource, binderEnabled bool, ashmemEn
"ptmx": newSymlink(ctx, "pts/ptmx", msrc),
}
- if binderEnabled {
- binder := binder.NewDevice(ctx, fs.RootOwner, fs.FilePermsFromMode(0666))
- contents["binder"] = newCharacterDevice(ctx, binder, msrc)
- }
-
- if ashmemEnabled {
- ashmem := ashmem.NewDevice(ctx, fs.RootOwner, fs.FilePermsFromMode(0666))
- contents["ashmem"] = newCharacterDevice(ctx, ashmem, msrc)
- }
-
iops := ramfs.NewDir(ctx, contents, fs.RootOwner, fs.FilePermsFromMode(0555))
return fs.NewInode(ctx, iops, msrc, fs.StableAttr{
DeviceID: devDevice.DeviceID(),
diff --git a/pkg/sentry/fs/dev/fs.go b/pkg/sentry/fs/dev/fs.go
index cbc2c2f9b..55f8af704 100644
--- a/pkg/sentry/fs/dev/fs.go
+++ b/pkg/sentry/fs/dev/fs.go
@@ -15,19 +15,10 @@
package dev
import (
- "strconv"
-
"gvisor.dev/gvisor/pkg/sentry/context"
"gvisor.dev/gvisor/pkg/sentry/fs"
- "gvisor.dev/gvisor/pkg/syserror"
)
-// Optional key containing boolean flag which specifies if Android Binder IPC should be enabled.
-const binderEnabledKey = "binder_enabled"
-
-// Optional key containing boolean flag which specifies if Android ashmem should be enabled.
-const ashmemEnabledKey = "ashmem_enabled"
-
// filesystem is a devtmpfs.
//
// +stateify savable
@@ -67,33 +58,7 @@ func (*filesystem) Flags() fs.FilesystemFlags {
// Mount returns a devtmpfs root that can be positioned in the vfs.
func (f *filesystem) Mount(ctx context.Context, device string, flags fs.MountSourceFlags, data string, _ interface{}) (*fs.Inode, error) {
- // device is always ignored.
// devtmpfs backed by ramfs ignores bad options. See fs/ramfs/inode.c:ramfs_parse_options.
// -> we should consider parsing the mode and backing devtmpfs by this.
-
- // Parse generic comma-separated key=value options.
- options := fs.GenericMountSourceOptions(data)
-
- // binerEnabledKey is optional and binder is disabled by default.
- binderEnabled := false
- if beStr, exists := options[binderEnabledKey]; exists {
- var err error
- binderEnabled, err = strconv.ParseBool(beStr)
- if err != nil {
- return nil, syserror.EINVAL
- }
- }
-
- // ashmemEnabledKey is optional and ashmem is disabled by default.
- ashmemEnabled := false
- if aeStr, exists := options[ashmemEnabledKey]; exists {
- var err error
- ashmemEnabled, err = strconv.ParseBool(aeStr)
- if err != nil {
- return nil, syserror.EINVAL
- }
- }
-
- // Construct the devtmpfs root.
- return New(ctx, fs.NewNonCachingMountSource(ctx, f, flags), binderEnabled, ashmemEnabled), nil
+ return New(ctx, fs.NewNonCachingMountSource(ctx, f, flags)), nil
}