summaryrefslogtreecommitdiffhomepage
path: root/pkg/sentry/fs
diff options
context:
space:
mode:
authorgVisor bot <gvisor-bot@google.com>2019-11-18 11:50:44 -0800
committergVisor bot <gvisor-bot@google.com>2019-11-18 11:50:44 -0800
commit235a96cab15e64c69fbbdce03c9bb4eb2c30b0d5 (patch)
treebbfccfb21739a4d3d4504f253a814b1f82751747 /pkg/sentry/fs
parent96019436854b0c59ae380a4920381586d05d9c31 (diff)
parent1d8b7292d72ce93d465e4ded19237fb92c08bc56 (diff)
Merge pull request #1177 from xiaobo55x:fs_host
PiperOrigin-RevId: 281112758
Diffstat (limited to 'pkg/sentry/fs')
-rw-r--r--pkg/sentry/fs/host/BUILD2
-rw-r--r--pkg/sentry/fs/host/util.go2
-rw-r--r--pkg/sentry/fs/host/util_amd64_unsafe.go41
-rw-r--r--pkg/sentry/fs/host/util_arm64_unsafe.go41
-rw-r--r--pkg/sentry/fs/host/util_unsafe.go19
5 files changed, 85 insertions, 20 deletions
diff --git a/pkg/sentry/fs/host/BUILD b/pkg/sentry/fs/host/BUILD
index 1cbed07ae..23daeb528 100644
--- a/pkg/sentry/fs/host/BUILD
+++ b/pkg/sentry/fs/host/BUILD
@@ -21,6 +21,8 @@ go_library(
"socket_unsafe.go",
"tty.go",
"util.go",
+ "util_amd64_unsafe.go",
+ "util_arm64_unsafe.go",
"util_unsafe.go",
],
importpath = "gvisor.dev/gvisor/pkg/sentry/fs/host",
diff --git a/pkg/sentry/fs/host/util.go b/pkg/sentry/fs/host/util.go
index bad61a9a1..e37e687c6 100644
--- a/pkg/sentry/fs/host/util.go
+++ b/pkg/sentry/fs/host/util.go
@@ -155,7 +155,7 @@ func unstableAttr(mo *superOperations, s *syscall.Stat_t) fs.UnstableAttr {
AccessTime: ktime.FromUnix(s.Atim.Sec, s.Atim.Nsec),
ModificationTime: ktime.FromUnix(s.Mtim.Sec, s.Mtim.Nsec),
StatusChangeTime: ktime.FromUnix(s.Ctim.Sec, s.Ctim.Nsec),
- Links: s.Nlink,
+ Links: uint64(s.Nlink),
}
}
diff --git a/pkg/sentry/fs/host/util_amd64_unsafe.go b/pkg/sentry/fs/host/util_amd64_unsafe.go
new file mode 100644
index 000000000..66da6e9f5
--- /dev/null
+++ b/pkg/sentry/fs/host/util_amd64_unsafe.go
@@ -0,0 +1,41 @@
+// Copyright 2019 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build amd64
+
+package host
+
+import (
+ "syscall"
+ "unsafe"
+)
+
+func fstatat(fd int, name string, flags int) (syscall.Stat_t, error) {
+ var stat syscall.Stat_t
+ namePtr, err := syscall.BytePtrFromString(name)
+ if err != nil {
+ return stat, err
+ }
+ _, _, errno := syscall.Syscall6(
+ syscall.SYS_NEWFSTATAT,
+ uintptr(fd),
+ uintptr(unsafe.Pointer(namePtr)),
+ uintptr(unsafe.Pointer(&stat)),
+ uintptr(flags),
+ 0, 0)
+ if errno != 0 {
+ return stat, errno
+ }
+ return stat, nil
+}
diff --git a/pkg/sentry/fs/host/util_arm64_unsafe.go b/pkg/sentry/fs/host/util_arm64_unsafe.go
new file mode 100644
index 000000000..e8cb94aeb
--- /dev/null
+++ b/pkg/sentry/fs/host/util_arm64_unsafe.go
@@ -0,0 +1,41 @@
+// Copyright 2019 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build arm64
+
+package host
+
+import (
+ "syscall"
+ "unsafe"
+)
+
+func fstatat(fd int, name string, flags int) (syscall.Stat_t, error) {
+ var stat syscall.Stat_t
+ namePtr, err := syscall.BytePtrFromString(name)
+ if err != nil {
+ return stat, err
+ }
+ _, _, errno := syscall.Syscall6(
+ syscall.SYS_FSTATAT,
+ uintptr(fd),
+ uintptr(unsafe.Pointer(namePtr)),
+ uintptr(unsafe.Pointer(&stat)),
+ uintptr(flags),
+ 0, 0)
+ if errno != 0 {
+ return stat, errno
+ }
+ return stat, nil
+}
diff --git a/pkg/sentry/fs/host/util_unsafe.go b/pkg/sentry/fs/host/util_unsafe.go
index 2b76f1065..3ab36b088 100644
--- a/pkg/sentry/fs/host/util_unsafe.go
+++ b/pkg/sentry/fs/host/util_unsafe.go
@@ -116,22 +116,3 @@ func setTimestamps(fd int, ts fs.TimeSpec) error {
}
return nil
}
-
-func fstatat(fd int, name string, flags int) (syscall.Stat_t, error) {
- var stat syscall.Stat_t
- namePtr, err := syscall.BytePtrFromString(name)
- if err != nil {
- return stat, err
- }
- _, _, errno := syscall.Syscall6(
- syscall.SYS_NEWFSTATAT,
- uintptr(fd),
- uintptr(unsafe.Pointer(namePtr)),
- uintptr(unsafe.Pointer(&stat)),
- uintptr(flags),
- 0, 0)
- if errno != 0 {
- return stat, errno
- }
- return stat, nil
-}