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-rw-r--r--pkg/sentry/strace/BUILD2
-rw-r--r--pkg/sentry/strace/clone.go46
-rw-r--r--pkg/sentry/strace/linux64_amd64.go2
-rw-r--r--pkg/sentry/strace/linux64_arm64.go2
-rw-r--r--pkg/sentry/strace/mmap.go92
-rw-r--r--pkg/sentry/strace/open.go42
-rw-r--r--pkg/sentry/strace/strace.go4
-rw-r--r--pkg/sentry/strace/syscalls.go6
-rw-r--r--pkg/sentry/watchdog/watchdog.go6
9 files changed, 154 insertions, 48 deletions
diff --git a/pkg/sentry/strace/BUILD b/pkg/sentry/strace/BUILD
index 1fbbd133c..369541c7a 100644
--- a/pkg/sentry/strace/BUILD
+++ b/pkg/sentry/strace/BUILD
@@ -11,6 +11,7 @@ go_library(
"futex.go",
"linux64_amd64.go",
"linux64_arm64.go",
+ "mmap.go",
"open.go",
"poll.go",
"ptrace.go",
@@ -35,7 +36,6 @@ go_library(
"//pkg/sentry/socket",
"//pkg/sentry/socket/netlink",
"//pkg/sentry/syscalls/linux",
- "@org_golang_x_sys//unix:go_default_library",
],
)
diff --git a/pkg/sentry/strace/clone.go b/pkg/sentry/strace/clone.go
index ab1060426..bfb4d7f5c 100644
--- a/pkg/sentry/strace/clone.go
+++ b/pkg/sentry/strace/clone.go
@@ -15,98 +15,98 @@
package strace
import (
- "golang.org/x/sys/unix"
"gvisor.dev/gvisor/pkg/abi"
+ "gvisor.dev/gvisor/pkg/abi/linux"
)
// CloneFlagSet is the set of clone(2) flags.
var CloneFlagSet = abi.FlagSet{
{
- Flag: unix.CLONE_VM,
+ Flag: linux.CLONE_VM,
Name: "CLONE_VM",
},
{
- Flag: unix.CLONE_FS,
+ Flag: linux.CLONE_FS,
Name: "CLONE_FS",
},
{
- Flag: unix.CLONE_FILES,
+ Flag: linux.CLONE_FILES,
Name: "CLONE_FILES",
},
{
- Flag: unix.CLONE_SIGHAND,
+ Flag: linux.CLONE_SIGHAND,
Name: "CLONE_SIGHAND",
},
{
- Flag: unix.CLONE_PTRACE,
+ Flag: linux.CLONE_PTRACE,
Name: "CLONE_PTRACE",
},
{
- Flag: unix.CLONE_VFORK,
+ Flag: linux.CLONE_VFORK,
Name: "CLONE_VFORK",
},
{
- Flag: unix.CLONE_PARENT,
+ Flag: linux.CLONE_PARENT,
Name: "CLONE_PARENT",
},
{
- Flag: unix.CLONE_THREAD,
+ Flag: linux.CLONE_THREAD,
Name: "CLONE_THREAD",
},
{
- Flag: unix.CLONE_NEWNS,
+ Flag: linux.CLONE_NEWNS,
Name: "CLONE_NEWNS",
},
{
- Flag: unix.CLONE_SYSVSEM,
+ Flag: linux.CLONE_SYSVSEM,
Name: "CLONE_SYSVSEM",
},
{
- Flag: unix.CLONE_SETTLS,
+ Flag: linux.CLONE_SETTLS,
Name: "CLONE_SETTLS",
},
{
- Flag: unix.CLONE_PARENT_SETTID,
+ Flag: linux.CLONE_PARENT_SETTID,
Name: "CLONE_PARENT_SETTID",
},
{
- Flag: unix.CLONE_CHILD_CLEARTID,
+ Flag: linux.CLONE_CHILD_CLEARTID,
Name: "CLONE_CHILD_CLEARTID",
},
{
- Flag: unix.CLONE_DETACHED,
+ Flag: linux.CLONE_DETACHED,
Name: "CLONE_DETACHED",
},
{
- Flag: unix.CLONE_UNTRACED,
+ Flag: linux.CLONE_UNTRACED,
Name: "CLONE_UNTRACED",
},
{
- Flag: unix.CLONE_CHILD_SETTID,
+ Flag: linux.CLONE_CHILD_SETTID,
Name: "CLONE_CHILD_SETTID",
},
{
- Flag: unix.CLONE_NEWUTS,
+ Flag: linux.CLONE_NEWUTS,
Name: "CLONE_NEWUTS",
},
{
- Flag: unix.CLONE_NEWIPC,
+ Flag: linux.CLONE_NEWIPC,
Name: "CLONE_NEWIPC",
},
{
- Flag: unix.CLONE_NEWUSER,
+ Flag: linux.CLONE_NEWUSER,
Name: "CLONE_NEWUSER",
},
{
- Flag: unix.CLONE_NEWPID,
+ Flag: linux.CLONE_NEWPID,
Name: "CLONE_NEWPID",
},
{
- Flag: unix.CLONE_NEWNET,
+ Flag: linux.CLONE_NEWNET,
Name: "CLONE_NEWNET",
},
{
- Flag: unix.CLONE_IO,
+ Flag: linux.CLONE_IO,
Name: "CLONE_IO",
},
}
diff --git a/pkg/sentry/strace/linux64_amd64.go b/pkg/sentry/strace/linux64_amd64.go
index d66befe81..6ce1bb592 100644
--- a/pkg/sentry/strace/linux64_amd64.go
+++ b/pkg/sentry/strace/linux64_amd64.go
@@ -33,7 +33,7 @@ var linuxAMD64 = SyscallMap{
6: makeSyscallInfo("lstat", Path, Stat),
7: makeSyscallInfo("poll", PollFDs, Hex, Hex),
8: makeSyscallInfo("lseek", Hex, Hex, Hex),
- 9: makeSyscallInfo("mmap", Hex, Hex, Hex, Hex, FD, Hex),
+ 9: makeSyscallInfo("mmap", Hex, Hex, MmapProt, MmapFlags, FD, Hex),
10: makeSyscallInfo("mprotect", Hex, Hex, Hex),
11: makeSyscallInfo("munmap", Hex, Hex),
12: makeSyscallInfo("brk", Hex),
diff --git a/pkg/sentry/strace/linux64_arm64.go b/pkg/sentry/strace/linux64_arm64.go
index 1a2d7d75f..ce5594301 100644
--- a/pkg/sentry/strace/linux64_arm64.go
+++ b/pkg/sentry/strace/linux64_arm64.go
@@ -246,7 +246,7 @@ var linuxARM64 = SyscallMap{
219: makeSyscallInfo("keyctl", Hex, Hex, Hex, Hex, Hex),
220: makeSyscallInfo("clone", CloneFlags, Hex, Hex, Hex, Hex),
221: makeSyscallInfo("execve", Path, ExecveStringVector, ExecveStringVector),
- 222: makeSyscallInfo("mmap", Hex, Hex, Hex, Hex, FD, Hex),
+ 222: makeSyscallInfo("mmap", Hex, Hex, MmapProt, MmapFlags, FD, Hex),
223: makeSyscallInfo("fadvise64", FD, Hex, Hex, Hex),
224: makeSyscallInfo("swapon", Hex, Hex),
225: makeSyscallInfo("swapoff", Hex),
diff --git a/pkg/sentry/strace/mmap.go b/pkg/sentry/strace/mmap.go
new file mode 100644
index 000000000..0035be586
--- /dev/null
+++ b/pkg/sentry/strace/mmap.go
@@ -0,0 +1,92 @@
+// Copyright 2021 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.
+
+package strace
+
+import (
+ "gvisor.dev/gvisor/pkg/abi"
+ "gvisor.dev/gvisor/pkg/abi/linux"
+)
+
+// ProtectionFlagSet represents the protection to mmap(2).
+var ProtectionFlagSet = abi.FlagSet{
+ {
+ Flag: linux.PROT_READ,
+ Name: "PROT_READ",
+ },
+ {
+ Flag: linux.PROT_WRITE,
+ Name: "PROT_WRITE",
+ },
+ {
+ Flag: linux.PROT_EXEC,
+ Name: "PROT_EXEC",
+ },
+}
+
+// MmapFlagSet is the set of mmap(2) flags.
+var MmapFlagSet = abi.FlagSet{
+ {
+ Flag: linux.MAP_SHARED,
+ Name: "MAP_SHARED",
+ },
+ {
+ Flag: linux.MAP_PRIVATE,
+ Name: "MAP_PRIVATE",
+ },
+ {
+ Flag: linux.MAP_FIXED,
+ Name: "MAP_FIXED",
+ },
+ {
+ Flag: linux.MAP_ANONYMOUS,
+ Name: "MAP_ANONYMOUS",
+ },
+ {
+ Flag: linux.MAP_GROWSDOWN,
+ Name: "MAP_GROWSDOWN",
+ },
+ {
+ Flag: linux.MAP_DENYWRITE,
+ Name: "MAP_DENYWRITE",
+ },
+ {
+ Flag: linux.MAP_EXECUTABLE,
+ Name: "MAP_EXECUTABLE",
+ },
+ {
+ Flag: linux.MAP_LOCKED,
+ Name: "MAP_LOCKED",
+ },
+ {
+ Flag: linux.MAP_NORESERVE,
+ Name: "MAP_NORESERVE",
+ },
+ {
+ Flag: linux.MAP_POPULATE,
+ Name: "MAP_POPULATE",
+ },
+ {
+ Flag: linux.MAP_NONBLOCK,
+ Name: "MAP_NONBLOCK",
+ },
+ {
+ Flag: linux.MAP_STACK,
+ Name: "MAP_STACK",
+ },
+ {
+ Flag: linux.MAP_HUGETLB,
+ Name: "MAP_HUGETLB",
+ },
+}
diff --git a/pkg/sentry/strace/open.go b/pkg/sentry/strace/open.go
index 5769360da..e7c7649f4 100644
--- a/pkg/sentry/strace/open.go
+++ b/pkg/sentry/strace/open.go
@@ -15,61 +15,61 @@
package strace
import (
- "golang.org/x/sys/unix"
"gvisor.dev/gvisor/pkg/abi"
+ "gvisor.dev/gvisor/pkg/abi/linux"
)
// OpenMode represents the mode to open(2) a file.
var OpenMode = abi.ValueSet{
- unix.O_RDWR: "O_RDWR",
- unix.O_WRONLY: "O_WRONLY",
- unix.O_RDONLY: "O_RDONLY",
+ linux.O_RDWR: "O_RDWR",
+ linux.O_WRONLY: "O_WRONLY",
+ linux.O_RDONLY: "O_RDONLY",
}
// OpenFlagSet is the set of open(2) flags.
var OpenFlagSet = abi.FlagSet{
{
- Flag: unix.O_APPEND,
+ Flag: linux.O_APPEND,
Name: "O_APPEND",
},
{
- Flag: unix.O_ASYNC,
+ Flag: linux.O_ASYNC,
Name: "O_ASYNC",
},
{
- Flag: unix.O_CLOEXEC,
+ Flag: linux.O_CLOEXEC,
Name: "O_CLOEXEC",
},
{
- Flag: unix.O_CREAT,
+ Flag: linux.O_CREAT,
Name: "O_CREAT",
},
{
- Flag: unix.O_DIRECT,
+ Flag: linux.O_DIRECT,
Name: "O_DIRECT",
},
{
- Flag: unix.O_DIRECTORY,
+ Flag: linux.O_DIRECTORY,
Name: "O_DIRECTORY",
},
{
- Flag: unix.O_EXCL,
+ Flag: linux.O_EXCL,
Name: "O_EXCL",
},
{
- Flag: unix.O_NOATIME,
+ Flag: linux.O_NOATIME,
Name: "O_NOATIME",
},
{
- Flag: unix.O_NOCTTY,
+ Flag: linux.O_NOCTTY,
Name: "O_NOCTTY",
},
{
- Flag: unix.O_NOFOLLOW,
+ Flag: linux.O_NOFOLLOW,
Name: "O_NOFOLLOW",
},
{
- Flag: unix.O_NONBLOCK,
+ Flag: linux.O_NONBLOCK,
Name: "O_NONBLOCK",
},
{
@@ -77,18 +77,22 @@ var OpenFlagSet = abi.FlagSet{
Name: "O_PATH",
},
{
- Flag: unix.O_SYNC,
+ Flag: linux.O_SYNC,
Name: "O_SYNC",
},
{
- Flag: unix.O_TRUNC,
+ Flag: linux.O_TMPFILE,
+ Name: "O_TMPFILE",
+ },
+ {
+ Flag: linux.O_TRUNC,
Name: "O_TRUNC",
},
}
func open(val uint64) string {
- s := OpenMode.Parse(val & unix.O_ACCMODE)
- if flags := OpenFlagSet.Parse(val &^ unix.O_ACCMODE); flags != "" {
+ s := OpenMode.Parse(val & linux.O_ACCMODE)
+ if flags := OpenFlagSet.Parse(val &^ linux.O_ACCMODE); flags != "" {
s += "|" + flags
}
return s
diff --git a/pkg/sentry/strace/strace.go b/pkg/sentry/strace/strace.go
index ec5d5f846..af7088847 100644
--- a/pkg/sentry/strace/strace.go
+++ b/pkg/sentry/strace/strace.go
@@ -489,6 +489,10 @@ func (i *SyscallInfo) pre(t *kernel.Task, args arch.SyscallArguments, maximumBlo
output = append(output, epollEvents(t, args[arg].Pointer(), 0 /* numEvents */, uint64(maximumBlobSize)))
case SelectFDSet:
output = append(output, fdSet(t, int(args[0].Int()), args[arg].Pointer()))
+ case MmapProt:
+ output = append(output, ProtectionFlagSet.Parse(uint64(args[arg].Uint())))
+ case MmapFlags:
+ output = append(output, MmapFlagSet.Parse(uint64(args[arg].Uint())))
case Oct:
output = append(output, "0o"+strconv.FormatUint(args[arg].Uint64(), 8))
case Hex:
diff --git a/pkg/sentry/strace/syscalls.go b/pkg/sentry/strace/syscalls.go
index 7e69b9279..5893443a7 100644
--- a/pkg/sentry/strace/syscalls.go
+++ b/pkg/sentry/strace/syscalls.go
@@ -238,6 +238,12 @@ const (
// EpollEvents is an array of struct epoll_event. It is the events
// argument in epoll_wait(2)/epoll_pwait(2).
EpollEvents
+
+ // MmapProt is the protection argument in mmap(2).
+ MmapProt
+
+ // MmapFlags is the flags argument in mmap(2).
+ MmapFlags
)
// defaultFormat is the syscall argument format to use if the actual format is
diff --git a/pkg/sentry/watchdog/watchdog.go b/pkg/sentry/watchdog/watchdog.go
index dfe85f31d..8d563d53a 100644
--- a/pkg/sentry/watchdog/watchdog.go
+++ b/pkg/sentry/watchdog/watchdog.go
@@ -115,14 +115,14 @@ func (a *Action) Get() interface{} {
}
// String returns Action's string representation.
-func (a *Action) String() string {
- switch *a {
+func (a Action) String() string {
+ switch a {
case LogWarning:
return "logWarning"
case Panic:
return "panic"
default:
- panic(fmt.Sprintf("Invalid watchdog action: %d", *a))
+ panic(fmt.Sprintf("Invalid watchdog action: %d", a))
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 20:12:19 +0000