chiark / gitweb /
importd: add new bus calls for importing local tar and raw images
[elogind.git] / src / import / pull-common.c
index 38380fc..94dd54b 100644 (file)
@@ -141,47 +141,6 @@ int pull_make_local_copy(const char *final, const char *image_root, const char *
         return 0;
 }
 
-int pull_make_read_only_fd(int fd) {
-        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 == -ENOTTY || r == -ENOTDIR || r == -EINVAL) {
-                struct stat st;
-
-                /* 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 temporary image: %m");
-
-                /* Drop "w" flag */
-                if (fchmod(fd, st.st_mode & 07555) < 0)
-                        return log_error_errno(errno, "Failed to chmod() final image: %m");
-
-                return 0;
-
-        } else if (r < 0)
-                return log_error_errno(r, "Failed to make subvolume read-only: %m");
-
-        return 0;
-}
-
-int pull_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 pull_make_read_only_fd(fd);
-}
-
 int pull_make_path(const char *url, const char *etag, const char *image_root, const char *prefix, const char *suffix, char **ret) {
         _cleanup_free_ char *escaped_url = NULL;
         char *path;
@@ -463,83 +422,3 @@ finish:
 
         return r;
 }
-
-int pull_fork_tar(const char *path, pid_t *ret) {
-        _cleanup_close_pair_ int pipefd[2] = { -1, -1 };
-        pid_t pid;
-        int r;
-
-        assert(path);
-        assert(ret);
-
-        if (pipe2(pipefd, O_CLOEXEC) < 0)
-                return log_error_errno(errno, "Failed to create pipe for tar: %m");
-
-        pid = fork();
-        if (pid < 0)
-                return log_error_errno(errno, "Failed to fork off tar: %m");
-
-        if (pid == 0) {
-                int null_fd;
-                uint64_t retain =
-                        (1ULL << CAP_CHOWN) |
-                        (1ULL << CAP_FOWNER) |
-                        (1ULL << CAP_FSETID) |
-                        (1ULL << CAP_MKNOD) |
-                        (1ULL << CAP_SETFCAP) |
-                        (1ULL << CAP_DAC_OVERRIDE);
-
-                /* Child */
-
-                reset_all_signal_handlers();
-                reset_signal_mask();
-                assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0);
-
-                pipefd[1] = safe_close(pipefd[1]);
-
-                if (dup2(pipefd[0], STDIN_FILENO) != STDIN_FILENO) {
-                        log_error_errno(errno, "Failed to dup2() fd: %m");
-                        _exit(EXIT_FAILURE);
-                }
-
-                if (pipefd[0] != STDIN_FILENO)
-                        pipefd[0] = safe_close(pipefd[0]);
-
-                null_fd = open("/dev/null", O_WRONLY|O_NOCTTY);
-                if (null_fd < 0) {
-                        log_error_errno(errno, "Failed to open /dev/null: %m");
-                        _exit(EXIT_FAILURE);
-                }
-
-                if (dup2(null_fd, STDOUT_FILENO) != STDOUT_FILENO) {
-                        log_error_errno(errno, "Failed to dup2() fd: %m");
-                        _exit(EXIT_FAILURE);
-                }
-
-                if (null_fd != STDOUT_FILENO)
-                        null_fd = safe_close(null_fd);
-
-                fd_cloexec(STDIN_FILENO, false);
-                fd_cloexec(STDOUT_FILENO, false);
-                fd_cloexec(STDERR_FILENO, false);
-
-                if (unshare(CLONE_NEWNET) < 0)
-                        log_error_errno(errno, "Failed to lock tar into network namespace, ignoring: %m");
-
-                r = capability_bounding_set_drop(~retain, true);
-                if (r < 0)
-                        log_error_errno(r, "Failed to drop capabilities, ignoring: %m");
-
-                execlp("tar", "tar", "--numeric-owner", "-C", path, "-px", NULL);
-                log_error_errno(errno, "Failed to execute tar: %m");
-                _exit(EXIT_FAILURE);
-        }
-
-        pipefd[0] = safe_close(pipefd[0]);
-        r = pipefd[1];
-        pipefd[1] = -1;
-
-        *ret = pid;
-
-        return r;
-}