From: Ralph Boehme <slow@samba.org>
Date: Wed, 20 May 2020 20:58:56 +0000 (+0200)
Subject: vfs_cap: implement SMB_VFS_OPENAT()
X-Git-Tag: samba-4.13.0rc1~492
X-Git-Url: http://git.samba.org/?a=commitdiff_plain;h=01d949bc95fcb5d89d2318adf0d0d05b9d0ede9c;p=samba.git

vfs_cap: 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_cap.c b/source3/modules/vfs_cap.c
index ab84c3143cc..7bf11a7bb9d 100644
--- a/source3/modules/vfs_cap.c
+++ b/source3/modules/vfs_cap.c
@@ -173,6 +173,51 @@ static int cap_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
 	return ret;
 }
 
+static int cap_openat(vfs_handle_struct *handle,
+		      const struct files_struct *dirfsp,
+		      const struct smb_filename *smb_fname_in,
+		      files_struct *fsp,
+		      int flags,
+		      mode_t mode)
+{
+	char *cappath = NULL;
+	struct smb_filename *smb_fname = NULL;
+	int ret;
+	int saved_errno = 0;
+
+	cappath = capencode(talloc_tos(), smb_fname->base_name);
+	if (cappath == NULL) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	smb_fname = cp_smb_filename(talloc_tos(), smb_fname_in);
+	if (smb_fname == NULL) {
+		TALLOC_FREE(cappath);
+		errno = ENOMEM;
+		return -1;
+	}
+	smb_fname->base_name = cappath;
+
+	DBG_DEBUG("cap_open for %s\n", smb_fname_str_dbg(smb_fname));
+	ret = SMB_VFS_NEXT_OPENAT(handle,
+				  dirfsp,
+				  smb_fname,
+				  fsp,
+				  flags,
+				  mode);
+
+	if (ret == -1) {
+		saved_errno = errno;
+	}
+	TALLOC_FREE(cappath);
+	TALLOC_FREE(smb_fname);
+	if (saved_errno != 0) {
+		errno = saved_errno;
+	}
+	return ret;
+}
+
 static int cap_renameat(vfs_handle_struct *handle,
 			files_struct *srcfsp,
 			const struct smb_filename *smb_fname_src,
@@ -1062,6 +1107,7 @@ static struct vfs_fn_pointers vfs_cap_fns = {
 	.readdir_fn = cap_readdir,
 	.mkdirat_fn = cap_mkdirat,
 	.open_fn = cap_open,
+	.openat_fn = cap_openat,
 	.renameat_fn = cap_renameat,
 	.stat_fn = cap_stat,
 	.lstat_fn = cap_lstat,