aboutsummaryrefslogtreecommitdiff
path: root/hw/9pfs/9p-local.c
diff options
context:
space:
mode:
Diffstat (limited to 'hw/9pfs/9p-local.c')
-rw-r--r--hw/9pfs/9p-local.c56
1 files changed, 19 insertions, 37 deletions
diff --git a/hw/9pfs/9p-local.c b/hw/9pfs/9p-local.c
index 33893d5011..b9d4e99851 100644
--- a/hw/9pfs/9p-local.c
+++ b/hw/9pfs/9p-local.c
@@ -887,62 +887,45 @@ static int local_fstat(FsContext *fs_ctx, int fid_type,
static int local_open2(FsContext *fs_ctx, V9fsPath *dir_path, const char *name,
int flags, FsCred *credp, V9fsFidOpenState *fs)
{
- char *path;
int fd = -1;
int err = -1;
- int serrno = 0;
- V9fsString fullname;
- char *buffer = NULL;
+ int dirfd;
/*
* Mark all the open to not follow symlinks
*/
flags |= O_NOFOLLOW;
- v9fs_string_init(&fullname);
- v9fs_string_sprintf(&fullname, "%s/%s", dir_path->data, name);
- path = fullname.data;
+ dirfd = local_opendir_nofollow(fs_ctx, dir_path->data);
+ if (dirfd == -1) {
+ return -1;
+ }
/* Determine the security model */
- if (fs_ctx->export_flags & V9FS_SM_MAPPED) {
- buffer = rpath(fs_ctx, path);
- fd = open(buffer, flags, SM_LOCAL_MODE_BITS);
+ if (fs_ctx->export_flags & V9FS_SM_MAPPED ||
+ fs_ctx->export_flags & V9FS_SM_MAPPED_FILE) {
+ fd = openat_file(dirfd, name, flags, SM_LOCAL_MODE_BITS);
if (fd == -1) {
- err = fd;
goto out;
}
credp->fc_mode = credp->fc_mode|S_IFREG;
- /* Set cleint credentials in xattr */
- err = local_set_xattr(buffer, credp);
- if (err == -1) {
- serrno = errno;
- goto err_end;
- }
- } else if (fs_ctx->export_flags & V9FS_SM_MAPPED_FILE) {
- buffer = rpath(fs_ctx, path);
- fd = open(buffer, flags, SM_LOCAL_MODE_BITS);
- if (fd == -1) {
- err = fd;
- goto out;
+ if (fs_ctx->export_flags & V9FS_SM_MAPPED) {
+ /* Set cleint credentials in xattr */
+ err = local_set_xattrat(dirfd, name, credp);
+ } else {
+ err = local_set_mapped_file_attrat(dirfd, name, credp);
}
- credp->fc_mode = credp->fc_mode|S_IFREG;
- /* Set client credentials in .virtfs_metadata directory files */
- err = local_set_mapped_file_attr(fs_ctx, path, credp);
if (err == -1) {
- serrno = errno;
goto err_end;
}
} else if ((fs_ctx->export_flags & V9FS_SM_PASSTHROUGH) ||
(fs_ctx->export_flags & V9FS_SM_NONE)) {
- buffer = rpath(fs_ctx, path);
- fd = open(buffer, flags, credp->fc_mode);
+ fd = openat_file(dirfd, name, flags, credp->fc_mode);
if (fd == -1) {
- err = fd;
goto out;
}
- err = local_post_create_passthrough(fs_ctx, path, credp);
+ err = local_set_cred_passthrough(fs_ctx, dirfd, name, credp);
if (err == -1) {
- serrno = errno;
goto err_end;
}
}
@@ -951,12 +934,11 @@ static int local_open2(FsContext *fs_ctx, V9fsPath *dir_path, const char *name,
goto out;
err_end:
- close(fd);
- remove(buffer);
- errno = serrno;
+ unlinkat_preserve_errno(dirfd, name,
+ flags & O_DIRECTORY ? AT_REMOVEDIR : 0);
+ close_preserve_errno(fd);
out:
- g_free(buffer);
- v9fs_string_free(&fullname);
+ close_preserve_errno(dirfd);
return err;
}