X-Git-Url: https://repo.jachan.dev/qemu.git/blobdiff_plain/eddbf0ab9db8385d7cb57e23891c1d41488b303e..17351c3f11e52101e1498ba03eec06fa5e4e713a:/qemu-seccomp.c

diff --git a/qemu-seccomp.c b/qemu-seccomp.c
index 3298de8f34..df75d9c471 100644
--- a/qemu-seccomp.c
+++ b/qemu-seccomp.c
@@ -12,10 +12,20 @@
  * Contributions after 2012-01-13 are licensed under the terms of the
  * GNU GPL, version 2 or (at your option) any later version.
  */
-#include <stdio.h>
+#include "qemu/osdep.h"
 #include <seccomp.h>
 #include "sysemu/seccomp.h"
 
+/* For some architectures (notably ARM) cacheflush is not supported until
+ * libseccomp 2.2.3, but configure enforces that we are using a more recent
+ * version on those hosts, so it is OK for this check to be less strict.
+ */
+#if SCMP_VER_MAJOR >= 3
+  #define HAVE_CACHEFLUSH
+#elif SCMP_VER_MAJOR == 2 && SCMP_VER_MINOR >= 2
+  #define HAVE_CACHEFLUSH
+#endif
+
 struct QemuSeccompSyscall {
     int32_t num;
     uint8_t priority;
@@ -30,6 +40,7 @@ static const struct QemuSeccompSyscall seccomp_whitelist[] = {
     { SCMP_SYS(sendto), 250 },
     { SCMP_SYS(socketcall), 250 },
     { SCMP_SYS(read), 249 },
+    { SCMP_SYS(io_submit), 249 },
     { SCMP_SYS(brk), 248 },
     { SCMP_SYS(clone), 247 },
     { SCMP_SYS(mmap), 247 },
@@ -54,6 +65,7 @@ static const struct QemuSeccompSyscall seccomp_whitelist[] = {
     { SCMP_SYS(prctl), 245 },
     { SCMP_SYS(signalfd), 245 },
     { SCMP_SYS(getrlimit), 245 },
+    { SCMP_SYS(getrusage), 245 },
     { SCMP_SYS(set_tid_address), 245 },
     { SCMP_SYS(statfs), 245 },
     { SCMP_SYS(unlink), 245 },
@@ -89,6 +101,7 @@ static const struct QemuSeccompSyscall seccomp_whitelist[] = {
     { SCMP_SYS(getuid), 245 },
     { SCMP_SYS(geteuid), 245 },
     { SCMP_SYS(timer_create), 245 },
+    { SCMP_SYS(times), 245 },
     { SCMP_SYS(exit), 245 },
     { SCMP_SYS(clock_gettime), 245 },
     { SCMP_SYS(time), 245 },
@@ -112,6 +125,7 @@ static const struct QemuSeccompSyscall seccomp_whitelist[] = {
     { SCMP_SYS(write), 244 },
     { SCMP_SYS(fcntl), 243 },
     { SCMP_SYS(tgkill), 242 },
+    { SCMP_SYS(kill), 242 },
     { SCMP_SYS(rt_sigaction), 242 },
     { SCMP_SYS(pipe2), 242 },
     { SCMP_SYS(munmap), 242 },
@@ -140,6 +154,7 @@ static const struct QemuSeccompSyscall seccomp_whitelist[] = {
     { SCMP_SYS(getsockname), 242 },
     { SCMP_SYS(getpeername), 242 },
     { SCMP_SYS(accept4), 242 },
+    { SCMP_SYS(timerfd_settime), 242 },
     { SCMP_SYS(newfstatat), 241 },
     { SCMP_SYS(shutdown), 241 },
     { SCMP_SYS(getsockopt), 241 },
@@ -214,8 +229,31 @@ static const struct QemuSeccompSyscall seccomp_whitelist[] = {
     { SCMP_SYS(recvmmsg), 241 },
     { SCMP_SYS(prlimit64), 241 },
     { SCMP_SYS(waitid), 241 },
+    { SCMP_SYS(io_cancel), 241 },
     { SCMP_SYS(io_setup), 241 },
-    { SCMP_SYS(io_destroy), 241 }
+    { SCMP_SYS(io_destroy), 241 },
+    { SCMP_SYS(arch_prctl), 240 },
+    { SCMP_SYS(mkdir), 240 },
+    { SCMP_SYS(fchmod), 240 },
+    { SCMP_SYS(shmget), 240 },
+    { SCMP_SYS(shmat), 240 },
+    { SCMP_SYS(shmdt), 240 },
+    { SCMP_SYS(timerfd_create), 240 },
+    { SCMP_SYS(shmctl), 240 },
+    { SCMP_SYS(mlockall), 240 },
+    { SCMP_SYS(mlock), 240 },
+    { SCMP_SYS(munlock), 240 },
+    { SCMP_SYS(semctl), 240 },
+    { SCMP_SYS(fallocate), 240 },
+    { SCMP_SYS(fadvise64), 240 },
+    { SCMP_SYS(inotify_init1), 240 },
+    { SCMP_SYS(inotify_add_watch), 240 },
+    { SCMP_SYS(mbind), 240 },
+    { SCMP_SYS(memfd_create), 240 },
+#ifdef HAVE_CACHEFLUSH
+    { SCMP_SYS(cacheflush), 240 },
+#endif
+    { SCMP_SYS(sysinfo), 240 },
 };
 
 int seccomp_start(void)
@@ -226,6 +264,7 @@ int seccomp_start(void)
 
     ctx = seccomp_init(SCMP_ACT_KILL);
     if (ctx == NULL) {
+        rc = -1;
         goto seccomp_return;
     }