[LibOS] Add regression test for getdents

LibOS/shim/test/regression/30_getdents.py

@@ -0,0 +1,30 @@
+#!/usr/bin/env python2
+
+import os, sys, mmap
+from regression import Regression
+
+loader = sys.argv[1]
+
+# Running Bootstrap
+regression = Regression(loader, "getdents", None, 10000)
+
+# This doesn't catch extraneous entries, but should be fine
+# until the LTP test can be run (need symlink support)
+regression.add_check(name="Directory listing (32-bit)",
+    check=lambda res: "getdents: setup ok" in res[0].out and \
+                      "getdents32: . [0x4]" in res[0].out and \
+                      "getdents32: .. [0x4]" in res[0].out and \
+                      "getdents32: file1 [0x8]" in res[0].out and \
+                      "getdents32: file2 [0x8]" in res[0].out and \
+                      "getdents32: dir3 [0x4]" in res[0].out)
+
+regression.add_check(name="Directory listing (64-bit)",
+    check=lambda res: "getdents: setup ok" in res[0].out and \
+                      "getdents64: . [0x4]" in res[0].out and \
+                      "getdents64: .. [0x4]" in res[0].out and \
+                      "getdents64: file1 [0x8]" in res[0].out and \
+                      "getdents64: file2 [0x8]" in res[0].out and \
+                      "getdents64: dir3 [0x4]" in res[0].out)
+
+rv = regression.run_checks()
+if rv: sys.exit(rv)

LibOS/shim/test/regression/getdents.c

@@ -0,0 +1,92 @@
+#include <dirent.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <sys/syscall.h>
+
+struct linux_dirent {
+    unsigned long   d_ino;
+    unsigned long   d_off;
+    unsigned short  d_reclen;
+    char            d_name[];
+};
+
+struct linux_dirent64 {
+    uint64_t        d_ino;
+    int64_t         d_off;
+    unsigned short  d_reclen;
+    unsigned char   d_type;
+    char            d_name[];
+};
+
+#define BUF_SIZE 512
+
+int main() {
+    int rv, fd, offs;
+    const mode_t perm = S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH;
+    char buf[BUF_SIZE];
+
+    // setup
+    // We test a directory one level below root so ".." is also present in SGX.
+    rv = mkdir("root", perm);
+    if (rv) { perror ("mkdir 1"); return 1; }
+    rv = mkdir("root/testdir", perm);
+    if (rv) { perror ("mkdir 2"); return 1; }
+    rv = creat("root/testdir/file1", perm);
+    if (rv < 0) { perror ("creat 1"); return 1; }
+    rv = close(rv);
+    if (rv) { perror ("close 1"); return 1; }
+    rv = creat("root/testdir/file2", perm);
+    if (rv < 0) { perror ("creat 2"); return 1; }
+    rv = close(rv);
+    if (rv) { perror ("close 2"); return 1; }
+    rv = mkdir("root/testdir/dir3", perm);
+    if (rv) { perror ("mkdir 3"); return 1; }
+    // enable symlink when implemented, or just use the LTP test
+    // rv = symlink("root/testdir/file2", "root/testdir/link4");
+    // if (rv) { perror ("symlink"); return 1; }
+    printf("getdents: setup ok\n");
+
+    // 32-bit listing
+    fd = open("root/testdir", O_RDONLY | O_DIRECTORY);
+    if (fd < 0) { perror ("open 1"); return 1; }
+
+    while (1) {
+        int count = syscall(SYS_getdents, fd, buf, BUF_SIZE);
+        if (count < 0) { perror ("getdents32"); return 1; }
+        if (count == 0) break;
+        for (offs = 0; offs < count; ) {
+            struct linux_dirent *d32 = (struct linux_dirent *) (buf + offs);
+            char d_type = *(buf + offs + d32->d_reclen - 1);
+            printf("getdents32: %s [0x%x]\n", d32->d_name, d_type);
+            offs += d32->d_reclen;
+        }
+    }
+    rv = close(fd);
+    if (rv) { perror ("close 1"); return 1; }
+
+    // 64-bit listing
+    fd = open("root/testdir", O_RDONLY | O_DIRECTORY);
+    if (fd < 0) { perror ("open 2"); return 1; }
+
+    while (1) {
+        int count = syscall(SYS_getdents64, fd, buf, BUF_SIZE);
+        if (count < 0) { perror ("getdents64"); return 1; }
+        if (count == 0) break;
+        for (offs = 0; offs < count; ) {
+            struct linux_dirent64 *d64 = (struct linux_dirent64 *) (buf + offs);
+            printf("getdents64: %s [0x%x]\n", d64->d_name, d64->d_type);
+            offs += d64->d_reclen;
+        }
+    }
+    rv = close(fd);
+    if (rv) { perror ("close 2"); return 1; }
+
+    // cleanup
+    remove("root/testdir/file1");
+    remove("root/testdir/file2");
+    remove("root/testdir/dir3");
+    remove("root/testdir");
+    remove("root");
+    return 0;
+}

LibOS/shim/test/regression/getdents.manifest.template

@@ -0,0 +1,12 @@
+loader.preload = file:$(SHIMPATH)
+loader.env.LD_LIBRARY_PATH = /lib
+loader.debug_type = inline
+
+fs.mount.lib.type = chroot
+fs.mount.lib.path = /lib
+fs.mount.lib.uri = file:$(LIBCDIR)
+
+sgx.trusted_files.ld = file:$(LIBCDIR)/ld-linux-x86-64.so.2
+sgx.trusted_files.libc = file:$(LIBCDIR)/libc.so.6
+
+sgx.allowed_files.test = file:root