tests: Add a sftp benchmark test for write/read

The tests writes and reads a file of 128M.

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>

DefineOptions.cmake

@@ -27,9 +27,10 @@ else (WITH_ZLIB)
     set(WITH_LIBZ OFF)
 endif (WITH_ZLIB)
 
-if(WITH_BENCHMARKS)
+if (WITH_BENCHMARKS)
   set(UNIT_TESTING ON)
-endif(WITH_BENCHMARKS)
+  set(CLIENT_TESTING ON)
+endif()
 
 if (WITH_STATIC_LIB)
     set(BUILD_STATIC_LIB ON)

tests/client/CMakeLists.txt

@@ -15,13 +15,18 @@ set(LIBSSH_CLIENT_TESTS
     torture_request_env)
 
 if (WITH_SFTP)
+    if (WITH_BENCHMARKS)
+        set(SFTP_BENCHMARK_TESTS
+            torture_sftp_benchmark)
+    endif()
     set(LIBSSH_CLIENT_TESTS
         ${LIBSSH_CLIENT_TESTS}
         torture_sftp_ext
         torture_sftp_canonicalize_path
         torture_sftp_dir
         torture_sftp_read
-        torture_sftp_fsync)
+        torture_sftp_fsync
+        ${SFTP_BENCHMARK_TESTS})
 endif (WITH_SFTP)
 
 foreach(_CLI_TEST ${LIBSSH_CLIENT_TESTS})

tests/client/torture_sftp_benchmark.c

@@ -0,0 +1,137 @@
+#define LIBSSH_STATIC
+
+#include "config.h"
+
+#include "torture.h"
+#include "sftp.c"
+
+#include <sys/types.h>
+#include <pwd.h>
+#include <errno.h>
+
+#define MAX_XFER_BUF_SIZE 16384
+
+static int sshd_setup(void **state)
+{
+    torture_setup_sshd_server(state);
+
+    return 0;
+}
+
+static int sshd_teardown(void **state) {
+    torture_teardown_sshd_server(state);
+
+    return 0;
+}
+
+static int session_setup(void **state)
+{
+    struct torture_state *s = *state;
+    struct passwd *pwd;
+    int rc;
+
+    pwd = getpwnam("bob");
+    assert_non_null(pwd);
+
+    rc = setuid(pwd->pw_uid);
+    assert_return_code(rc, errno);
+
+    s->ssh.session = torture_ssh_session(TORTURE_SSH_SERVER,
+                                         NULL,
+                                         TORTURE_SSH_USER_ALICE,
+                                         NULL);
+    assert_non_null(s->ssh.session);
+
+    s->ssh.tsftp = torture_sftp_session(s->ssh.session);
+    assert_non_null(s->ssh.tsftp);
+
+    return 0;
+}
+
+static int session_teardown(void **state)
+{
+    struct torture_state *s = *state;
+
+    torture_rmdirs(s->ssh.tsftp->testdir);
+    torture_sftp_close(s->ssh.tsftp);
+    ssh_disconnect(s->ssh.session);
+    ssh_free(s->ssh.session);
+
+    return 0;
+}
+
+static void torture_sftp_benchmark_write_read(void **state)
+{
+    struct torture_state *s = *state;
+    struct torture_sftp *t = s->ssh.tsftp;
+    sftp_session sftp = t->sftp;
+    ssh_session session = s->ssh.session;
+    sftp_file file = NULL;
+    struct stat sb = {
+        .st_size = 0,
+    };
+    uint8_t buf_16k[MAX_XFER_BUF_SIZE];
+    char local_path[1024] = {0};
+    char *remote_path = NULL;
+    ssize_t bwritten, nread;
+    size_t i;
+    int rc;
+
+    memset(buf_16k, 'X', sizeof(buf_16k));
+
+    snprintf(local_path, sizeof(local_path), "%s/128M.dat", t->testdir);
+
+    remote_path = sftp_canonicalize_path(sftp, local_path);
+    assert_non_null(remote_path);
+
+    file = sftp_open(sftp, remote_path, O_CREAT|O_WRONLY|O_TRUNC, 0644);
+    assert_non_null(file);
+
+    /* Write 128M */
+    for (i = 0; i < 0x2000; i++) {
+        bwritten = sftp_write(file, buf_16k, sizeof(buf_16k));
+        assert_int_equal(bwritten, sizeof(buf_16k));
+    }
+
+    rc = sftp_close(file);
+    assert_ssh_return_code(session, rc);
+
+    /* Check that 128M has been written */
+    rc = stat(local_path, &sb);
+    assert_int_equal(sb.st_size, 0x8000000);
+
+    file = sftp_open(sftp, remote_path, O_RDONLY, 0);
+    assert_non_null(file);
+
+    for (;;) {
+        nread = sftp_read(file, buf_16k, sizeof(buf_16k));
+        if (nread == 0) {
+            break; /* EOF */
+        }
+        assert_int_equal(nread, sizeof(buf_16k));
+    }
+
+    rc = sftp_close(file);
+    assert_ssh_return_code(session, rc);
+
+    SSH_STRING_FREE_CHAR(remote_path);
+    unlink(local_path);
+}
+
+int torture_run_tests(void)
+{
+    int rc;
+    struct CMUnitTest tests[] = {
+        cmocka_unit_test_setup_teardown(torture_sftp_benchmark_write_read,
+                                        session_setup,
+                                        session_teardown)
+    };
+
+    ssh_init();
+
+    torture_filter_tests(tests);
+    rc = cmocka_run_group_tests(tests, sshd_setup, sshd_teardown);
+    ssh_finalize();
+
+    return rc;
+}