Add procfs files for SysV message queues.

1 files changed, 23 insertions, 1 deletions

diff --git a/test/syscalls/linux/proc_isolated.cc b/test/syscalls/linux/proc_isolated.cc
index a38689667..4ec9b503c 100644
--- a/test/syscalls/linux/proc_isolated.cc
+++ b/test/syscalls/linux/proc_isolated.cc
@@ -12,12 +12,13 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#include <linux/msg.h>
 #include <linux/sem.h>
 #include <linux/shm.h>
 
-#include "gtest/gtest.h"
 #include "absl/strings/numbers.h"
 #include "absl/strings/str_split.h"
+#include "gtest/gtest.h"
 #include "test/util/fs_util.h"
 #include "test/util/test_util.h"
 
@@ -73,6 +74,27 @@ TEST(ProcDefaults, PresenceOfSem) {
   ASSERT_EQ(semmni, SEMMNI);
 }
 
+TEST(ProcDefaults, PresenceOfMsgMniMaxMnb) {
+  uint64_t msgmni = 0;
+  uint64_t msgmax = 0;
+  uint64_t msgmnb = 0;
+
+  std::string proc_file;
+  proc_file = ASSERT_NO_ERRNO_AND_VALUE(GetContents("/proc/sys/kernel/msgmni"));
+  ASSERT_FALSE(proc_file.empty());
+  ASSERT_TRUE(absl::SimpleAtoi(proc_file, &msgmni));
+  proc_file = ASSERT_NO_ERRNO_AND_VALUE(GetContents("/proc/sys/kernel/msgmax"));
+  ASSERT_FALSE(proc_file.empty());
+  ASSERT_TRUE(absl::SimpleAtoi(proc_file, &msgmax));
+  proc_file = ASSERT_NO_ERRNO_AND_VALUE(GetContents("/proc/sys/kernel/msgmnb"));
+  ASSERT_FALSE(proc_file.empty());
+  ASSERT_TRUE(absl::SimpleAtoi(proc_file, &msgmnb));
+
+  ASSERT_EQ(msgmni, MSGMNI);
+  ASSERT_EQ(msgmax, MSGMAX);
+  ASSERT_EQ(msgmnb, MSGMNB);
+}
+
 }  // namespace
 }  // namespace testing
 }  // namespace gvisor