From: Ralph Boehme <slow@samba.org>
Date: Wed, 20 May 2020 19:32:30 +0000 (+0200)
Subject: vfs_glusterfs: implement SMB_VFS_OPENAT()
X-Git-Tag: ldb-2.2.0~386
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=712cd71f93677adbe7093499f07771ccbf51c6aa;p=thirdparty%2Fsamba.git

vfs_glusterfs: implement SMB_VFS_OPENAT()

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
---

diff --git a/source3/modules/vfs_glusterfs.c b/source3/modules/vfs_glusterfs.c
index fc9fbb0f646..c4b779a3c1c 100644
--- a/source3/modules/vfs_glusterfs.c
+++ b/source3/modules/vfs_glusterfs.c
@@ -643,6 +643,53 @@ static int vfs_gluster_open(struct vfs_handle_struct *handle,
 	return 13371337;
 }
 
+static int vfs_gluster_openat(struct vfs_handle_struct *handle,
+			      const struct files_struct *dirfsp,
+			      const struct smb_filename *smb_fname,
+			      files_struct *fsp,
+			      int flags,
+			      mode_t mode)
+{
+	glfs_fd_t *glfd;
+	glfs_fd_t **p_tmp;
+
+	START_PROFILE(syscall_openat);
+
+	/*
+	 * Looks like glfs API doesn't have openat().
+	 */
+	SMB_ASSERT(dirfsp->fh->fd == AT_FDCWD);
+
+	p_tmp = VFS_ADD_FSP_EXTENSION(handle, fsp, glfs_fd_t *, NULL);
+	if (p_tmp == NULL) {
+		END_PROFILE(syscall_openat);
+		errno = ENOMEM;
+		return -1;
+	}
+
+	if (flags & O_DIRECTORY) {
+		glfd = glfs_opendir(handle->data, smb_fname->base_name);
+	} else if (flags & O_CREAT) {
+		glfd = glfs_creat(handle->data, smb_fname->base_name, flags,
+				  mode);
+	} else {
+		glfd = glfs_open(handle->data, smb_fname->base_name, flags);
+	}
+
+	if (glfd == NULL) {
+		END_PROFILE(syscall_openat);
+		/* no extension destroy_fn, so no need to save errno */
+		VFS_REMOVE_FSP_EXTENSION(handle, fsp);
+		return -1;
+	}
+
+	*p_tmp = glfd;
+
+	END_PROFILE(syscall_openat);
+	/* An arbitrary value for error reporting, so you know its us. */
+	return 13371337;
+}
+
 static int vfs_gluster_close(struct vfs_handle_struct *handle,
 			     files_struct *fsp)
 {
@@ -2045,6 +2092,7 @@ static struct vfs_fn_pointers glusterfs_fns = {
 	/* File Operations */
 
 	.open_fn = vfs_gluster_open,
+	.openat_fn = vfs_gluster_openat,
 	.create_file_fn = NULL,
 	.close_fn = vfs_gluster_close,
 	.pread_fn = vfs_gluster_pread,