#include "tmpfile-util.h"
#include "util.h"
-int import_make_read_only_fd(int fd) {
- struct stat st;
- int r;
-
- assert(fd >= 0);
-
- /* First, let's make this a read-only subvolume if it refers
- * to a subvolume */
- r = btrfs_subvol_set_read_only_fd(fd, true);
- if (r >= 0)
- return 0;
-
- if (!ERRNO_IS_NOT_SUPPORTED(r) && !IN_SET(r, -ENOTDIR, -EINVAL))
- return log_error_errno(r, "Failed to make subvolume read-only: %m");
-
- /* This doesn't refer to a subvolume, or the file system isn't even btrfs. In that, case fall back to
- * chmod()ing */
-
- r = fstat(fd, &st);
- if (r < 0)
- return log_error_errno(errno, "Failed to stat image: %m");
-
- if (S_ISDIR(st.st_mode)) {
- /* For directories set the immutable flag on the dir itself */
-
- r = chattr_fd(fd, FS_IMMUTABLE_FL, FS_IMMUTABLE_FL, NULL);
- if (r < 0)
- return log_error_errno(r, "Failed to set +i attribute on directory image: %m");
-
- } else if (S_ISREG(st.st_mode)) {
- /* For regular files drop "w" flags */
-
- if ((st.st_mode & 0222) != 0)
- if (fchmod(fd, st.st_mode & 07555) < 0)
- return log_error_errno(errno, "Failed to chmod() image: %m");
- } else
- return log_error_errno(SYNTHETIC_ERRNO(EBADFD), "Image of unexpected type");
-
- return 0;
-}
-
-int import_make_read_only(const char *path) {
- _cleanup_close_ int fd = 1;
-
- fd = open(path, O_RDONLY|O_NOCTTY|O_CLOEXEC);
- if (fd < 0)
- return log_error_errno(errno, "Failed to open %s: %m", path);
-
- return import_make_read_only_fd(fd);
-}
-
int import_fork_tar_x(const char *path, pid_t *ret) {
_cleanup_close_pair_ int pipefd[2] = { -1, -1 };
bool use_selinux;
IMPORT_FLAGS_MASK_RAW = IMPORT_FORCE|IMPORT_READ_ONLY|IMPORT_CONVERT_QCOW2|IMPORT_DIRECT|IMPORT_SYNC,
} ImportFlags;
-int import_make_read_only_fd(int fd);
-int import_make_read_only(const char *path);
-
int import_fork_tar_c(const char *path, pid_t *ret);
int import_fork_tar_x(const char *path, pid_t *ret);