Added test for fchmod

At the moment this test fails (cf. issue #62). If that gets fixed in the
kernel, this test can be activated conditionally.

2 files changed, 186 insertions, 1 deletions

diff --git a/test/Makefile.am b/test/Makefile.am
index 0f2199f..9eb0a73 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -1,6 +1,7 @@
 ## Process this file with automake to produce Makefile.in
 
 AM_CPPFLAGS = -I$(top_srcdir)/include -D_REENTRANT
-noinst_PROGRAMS = test test_write_cache
+noinst_PROGRAMS = test test_write_cache test_setattr
 
 test_write_cache_LDADD = ../lib/libfuse3.la
+test_setattr_LDADD = ../lib/libfuse3.la
diff --git a/test/test_setattr.c b/test/test_setattr.c
new file mode 100644
index 0000000..1eef66a
--- /dev/null
+++ b/test/test_setattr.c
@@ -0,0 +1,184 @@
+/*
+  FUSE: Filesystem in Userspace
+  Copyright (C) 2016 Nikolaus Rath <Nikolaus@rath.org>
+
+  This program can be distributed under the terms of the GNU GPL.
+  See the file COPYING.
+*/
+
+
+#define FUSE_USE_VERSION 30
+
+#include <config.h>
+#include <fuse_lowlevel.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <assert.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <linux/limits.h>
+
+#define FILE_INO 2
+#define FILE_NAME "truncate_me"
+
+static int got_fh;
+static mode_t file_mode = S_IFREG | 0644;
+
+static int tfs_stat(fuse_ino_t ino, struct stat *stbuf) {
+    stbuf->st_ino = ino;
+    if (ino == FUSE_ROOT_ID) {
+        stbuf->st_mode = S_IFDIR | 0755;
+        stbuf->st_nlink = 1;
+    }
+
+    else if (ino == FILE_INO) {
+        stbuf->st_mode = file_mode;
+        stbuf->st_nlink = 1;
+        stbuf->st_size = 0;
+    }
+
+    else
+        return -1;
+
+    return 0;
+}
+
+static void tfs_lookup(fuse_req_t req, fuse_ino_t parent,
+                       const char *name) {
+    struct fuse_entry_param e;
+    memset(&e, 0, sizeof(e));
+
+    if (parent != FUSE_ROOT_ID)
+        goto err_out;
+    else if (strcmp(name, FILE_NAME) == 0)
+        e.ino = FILE_INO;
+    else
+        goto err_out;
+
+    if (tfs_stat(e.ino, &e.attr) != 0)
+        goto err_out;
+    fuse_reply_entry(req, &e);
+    return;
+
+err_out:
+    fuse_reply_err(req, ENOENT);
+}
+
+static void tfs_getattr(fuse_req_t req, fuse_ino_t ino,
+                        struct fuse_file_info *fi) {
+    struct stat stbuf;
+
+    (void) fi;
+
+    memset(&stbuf, 0, sizeof(stbuf));
+    if (tfs_stat(ino, &stbuf) != 0)
+        fuse_reply_err(req, ENOENT);
+    else
+        fuse_reply_attr(req, &stbuf, 5);
+}
+
+static void tfs_open(fuse_req_t req, fuse_ino_t ino,
+                     struct fuse_file_info *fi) {
+    if (ino == FUSE_ROOT_ID)
+        fuse_reply_err(req, EISDIR);
+    else {
+        assert(ino == FILE_INO);
+        fi->fh = FILE_INO;
+        fuse_reply_open(req, fi);
+    }
+}
+
+static void tfs_setattr (fuse_req_t req, fuse_ino_t ino, struct stat *attr,
+                         int to_set, struct fuse_file_info *fi) {
+    if(ino != FILE_INO ||
+       !(to_set & FUSE_SET_ATTR_MODE)) {
+        fuse_reply_err(req, EINVAL);
+        return;
+    }
+
+    if(fi == NULL)
+        fprintf(stderr, "setattr with fi == NULL\n");
+    else if (fi->fh != FILE_INO)
+        fprintf(stderr, "setattr with wrong fi->fh\n");
+    else {
+        fprintf(stderr, "setattr ok\n");
+        got_fh = 1;
+        file_mode = attr->st_mode;
+    }
+
+    tfs_getattr(req, ino, fi);
+}
+
+static struct fuse_lowlevel_ops tfs_oper = {
+    .lookup	= tfs_lookup,
+    .getattr	= tfs_getattr,
+    .open	= tfs_open,
+    .setattr	= tfs_setattr,
+};
+
+static void* run_fs(void *data) {
+    struct fuse_session *se = (struct fuse_session*) data;
+    assert(fuse_session_loop(se) == 0);
+    return NULL;
+}
+
+static void test_fs(char *mountpoint) {
+    char fname[PATH_MAX];
+    int fd;
+
+    assert(snprintf(fname, PATH_MAX, "%s/" FILE_NAME,
+                     mountpoint) > 0);
+    fd = open(fname, O_WRONLY);
+    if (fd == -1) {
+        perror(fname);
+        assert(0);
+    }
+
+    assert(fchmod(fd, 0600) == 0);
+    close(fd);
+}
+
+int main(int argc, char *argv[]) {
+    struct fuse_args args = FUSE_ARGS_INIT(argc, argv);
+    struct fuse_session *se;
+    struct fuse_cmdline_opts fuse_opts;
+    pthread_t fs_thread;
+
+    assert(fuse_parse_cmdline(&args, &fuse_opts) == 0);
+    assert(fuse_opt_add_arg(&args, "-oauto_unmount") == 0);
+    se = fuse_session_new(&args, &tfs_oper,
+                          sizeof(tfs_oper), NULL);
+    assert (se != NULL);
+    assert(fuse_set_signal_handlers(se) == 0);
+    assert(fuse_session_mount(se, fuse_opts.mountpoint) == 0);
+
+    /* Start file-system thread */
+    assert(pthread_create(&fs_thread, NULL, run_fs, (void *)se) == 0);
+
+    /* Do test */
+    test_fs(fuse_opts.mountpoint);
+
+    /* Stop file system */
+    assert(pthread_cancel(fs_thread) == 0);
+
+    fuse_session_unmount(se);
+    assert(got_fh == 1);
+    fuse_remove_signal_handlers(se);
+    fuse_session_destroy(se);
+
+    printf("Test completed successfully.\n");
+    return 0;
+}
+
+
+/**
+ * Local Variables:
+ * mode: c
+ * indent-tabs-mode: nil
+ * c-basic-offset: 4
+ * End:
+ */