From d1ca50d49e52338feb1d46b69725b9ac21cc3ccc Mon Sep 17 00:00:00 2001
From: Zhengyu He <hzy@google.com>
Date: Fri, 1 Jun 2018 13:39:53 -0700
Subject: Add SyscallRules that supports argument filtering

PiperOrigin-RevId: 198919043
Change-Id: I7f1f0a3b3430cd0936a4ee4fc6859aab71820bdf
---
 pkg/seccomp/seccomp_test_victim.go | 141 +++++++++++++++++++------------------
 1 file changed, 73 insertions(+), 68 deletions(-)

(limited to 'pkg/seccomp/seccomp_test_victim.go')

diff --git a/pkg/seccomp/seccomp_test_victim.go b/pkg/seccomp/seccomp_test_victim.go
index fe3f96901..4f2ae4dac 100644
--- a/pkg/seccomp/seccomp_test_victim.go
+++ b/pkg/seccomp/seccomp_test_victim.go
@@ -29,76 +29,81 @@ func main() {
 	dieFlag := flag.Bool("die", false, "trips over the filter if true")
 	flag.Parse()
 
-	syscalls := []uintptr{
-		syscall.SYS_ACCEPT,
-		syscall.SYS_ARCH_PRCTL,
-		syscall.SYS_BIND,
-		syscall.SYS_BRK,
-		syscall.SYS_CLOCK_GETTIME,
-		syscall.SYS_CLONE,
-		syscall.SYS_CLOSE,
-		syscall.SYS_DUP,
-		syscall.SYS_DUP2,
-		syscall.SYS_EPOLL_CREATE1,
-		syscall.SYS_EPOLL_CTL,
-		syscall.SYS_EPOLL_WAIT,
-		syscall.SYS_EXIT,
-		syscall.SYS_EXIT_GROUP,
-		syscall.SYS_FALLOCATE,
-		syscall.SYS_FCHMOD,
-		syscall.SYS_FCNTL,
-		syscall.SYS_FSTAT,
-		syscall.SYS_FSYNC,
-		syscall.SYS_FTRUNCATE,
-		syscall.SYS_FUTEX,
-		syscall.SYS_GETDENTS64,
-		syscall.SYS_GETPEERNAME,
-		syscall.SYS_GETPID,
-		syscall.SYS_GETSOCKNAME,
-		syscall.SYS_GETSOCKOPT,
-		syscall.SYS_GETTID,
-		syscall.SYS_GETTIMEOFDAY,
-		syscall.SYS_LISTEN,
-		syscall.SYS_LSEEK,
-		syscall.SYS_MADVISE,
-		syscall.SYS_MINCORE,
-		syscall.SYS_MMAP,
-		syscall.SYS_MPROTECT,
-		syscall.SYS_MUNLOCK,
-		syscall.SYS_MUNMAP,
-		syscall.SYS_NANOSLEEP,
-		syscall.SYS_NEWFSTATAT,
-		syscall.SYS_OPEN,
-		syscall.SYS_POLL,
-		syscall.SYS_PREAD64,
-		syscall.SYS_PSELECT6,
-		syscall.SYS_PWRITE64,
-		syscall.SYS_READ,
-		syscall.SYS_READLINKAT,
-		syscall.SYS_READV,
-		syscall.SYS_RECVMSG,
-		syscall.SYS_RENAMEAT,
-		syscall.SYS_RESTART_SYSCALL,
-		syscall.SYS_RT_SIGACTION,
-		syscall.SYS_RT_SIGPROCMASK,
-		syscall.SYS_RT_SIGRETURN,
-		syscall.SYS_SCHED_YIELD,
-		syscall.SYS_SENDMSG,
-		syscall.SYS_SETITIMER,
-		syscall.SYS_SET_ROBUST_LIST,
-		syscall.SYS_SETSOCKOPT,
-		syscall.SYS_SHUTDOWN,
-		syscall.SYS_SIGALTSTACK,
-		syscall.SYS_SOCKET,
-		syscall.SYS_SYNC_FILE_RANGE,
-		syscall.SYS_TGKILL,
-		syscall.SYS_UTIMENSAT,
-		syscall.SYS_WRITE,
-		syscall.SYS_WRITEV,
+	syscalls := seccomp.SyscallRules{
+		syscall.SYS_ACCEPT:          {},
+		syscall.SYS_ARCH_PRCTL:      {},
+		syscall.SYS_BIND:            {},
+		syscall.SYS_BRK:             {},
+		syscall.SYS_CLOCK_GETTIME:   {},
+		syscall.SYS_CLONE:           {},
+		syscall.SYS_CLOSE:           {},
+		syscall.SYS_DUP:             {},
+		syscall.SYS_DUP2:            {},
+		syscall.SYS_EPOLL_CREATE1:   {},
+		syscall.SYS_EPOLL_CTL:       {},
+		syscall.SYS_EPOLL_WAIT:      {},
+		syscall.SYS_EPOLL_PWAIT:     {},
+		syscall.SYS_EXIT:            {},
+		syscall.SYS_EXIT_GROUP:      {},
+		syscall.SYS_FALLOCATE:       {},
+		syscall.SYS_FCHMOD:          {},
+		syscall.SYS_FCNTL:           {},
+		syscall.SYS_FSTAT:           {},
+		syscall.SYS_FSYNC:           {},
+		syscall.SYS_FTRUNCATE:       {},
+		syscall.SYS_FUTEX:           {},
+		syscall.SYS_GETDENTS64:      {},
+		syscall.SYS_GETPEERNAME:     {},
+		syscall.SYS_GETPID:          {},
+		syscall.SYS_GETSOCKNAME:     {},
+		syscall.SYS_GETSOCKOPT:      {},
+		syscall.SYS_GETTID:          {},
+		syscall.SYS_GETTIMEOFDAY:    {},
+		syscall.SYS_LISTEN:          {},
+		syscall.SYS_LSEEK:           {},
+		syscall.SYS_MADVISE:         {},
+		syscall.SYS_MINCORE:         {},
+		syscall.SYS_MMAP:            {},
+		syscall.SYS_MPROTECT:        {},
+		syscall.SYS_MUNLOCK:         {},
+		syscall.SYS_MUNMAP:          {},
+		syscall.SYS_NANOSLEEP:       {},
+		syscall.SYS_NEWFSTATAT:      {},
+		syscall.SYS_OPEN:            {},
+		syscall.SYS_POLL:            {},
+		syscall.SYS_PREAD64:         {},
+		syscall.SYS_PSELECT6:        {},
+		syscall.SYS_PWRITE64:        {},
+		syscall.SYS_READ:            {},
+		syscall.SYS_READLINKAT:      {},
+		syscall.SYS_READV:           {},
+		syscall.SYS_RECVMSG:         {},
+		syscall.SYS_RENAMEAT:        {},
+		syscall.SYS_RESTART_SYSCALL: {},
+		syscall.SYS_RT_SIGACTION:    {},
+		syscall.SYS_RT_SIGPROCMASK:  {},
+		syscall.SYS_RT_SIGRETURN:    {},
+		syscall.SYS_SCHED_YIELD:     {},
+		syscall.SYS_SENDMSG:         {},
+		syscall.SYS_SETITIMER:       {},
+		syscall.SYS_SET_ROBUST_LIST: {},
+		syscall.SYS_SETSOCKOPT:      {},
+		syscall.SYS_SHUTDOWN:        {},
+		syscall.SYS_SIGALTSTACK:     {},
+		syscall.SYS_SOCKET:          {},
+		syscall.SYS_SYNC_FILE_RANGE: {},
+		syscall.SYS_TGKILL:          {},
+		syscall.SYS_UTIMENSAT:       {},
+		syscall.SYS_WRITE:           {},
+		syscall.SYS_WRITEV:          {},
 	}
 	die := *dieFlag
 	if !die {
-		syscalls = append(syscalls, syscall.SYS_OPENAT)
+		syscalls[syscall.SYS_OPENAT] = []seccomp.Rule{
+			{
+				seccomp.AllowValue(10),
+			},
+		}
 	}
 
 	if err := seccomp.Install(syscalls, false); err != nil {
@@ -107,6 +112,6 @@ func main() {
 	}
 	fmt.Printf("Filters installed\n")
 
-	syscall.RawSyscall(syscall.SYS_OPENAT, 0, 0, 0)
+	syscall.RawSyscall(syscall.SYS_OPENAT, 10, 0, 0)
 	fmt.Printf("Syscall was allowed!!!\n")
 }
-- 
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