Пример #1
0
static int automount_verify(Automount *a) {
        bool b;
        char *e;
        assert(a);

        if (UNIT(a)->load_state != UNIT_LOADED)
                return 0;

        if (path_equal(a->where, "/")) {
                log_error_unit(UNIT(a)->id, "Cannot have an automount unit for the root directory. Refusing.");
                return -EINVAL;
        }

        e = unit_name_from_path(a->where, ".automount");
        if (!e)
                return -ENOMEM;

        b = unit_has_name(UNIT(a), e);
        free(e);

        if (!b) {
                log_error_unit(UNIT(a)->id, "%s's Where setting doesn't match unit name. Refusing.", UNIT(a)->id);
                return -EINVAL;
        }

        return 0;
}
Пример #2
0
static int automount_verify(Automount *a) {
        _cleanup_free_ char *e = NULL;
        int r;

        assert(a);

        if (UNIT(a)->load_state != UNIT_LOADED)
                return 0;

        if (path_equal(a->where, "/")) {
                log_unit_error(UNIT(a), "Cannot have an automount unit for the root directory. Refusing.");
                return -EINVAL;
        }

        r = unit_name_from_path(a->where, ".automount", &e);
        if (r < 0)
                return log_unit_error(UNIT(a), "Failed to generate unit name from path: %m");

        if (!unit_has_name(UNIT(a), e)) {
                log_unit_error(UNIT(a), "Where= setting doesn't match unit name. Refusing.");
                return -EINVAL;
        }

        return 0;
}
Пример #3
0
int generator_hook_up_growfs(
                const char *dir,
                const char *where,
                const char *target) {

        _cleanup_free_ char *unit = NULL, *escaped = NULL, *where_unit = NULL;
        _cleanup_fclose_ FILE *f = NULL;
        const char *unit_file;
        int r;

        escaped = cescape(where);
        if (!escaped)
                return log_oom();

        r = unit_name_from_path_instance("systemd-growfs", where, ".service", &unit);
        if (r < 0)
                return log_error_errno(r, "Failed to make unit instance name from path \"%s\": %m",
                                       where);

        r = unit_name_from_path(where, ".mount", &where_unit);
        if (r < 0)
                return log_error_errno(r, "Failed to make unit name from path \"%s\": %m",
                                       where);

        unit_file = strjoina(dir, "/", unit);
        log_debug("Creating %s", unit_file);

        f = fopen(unit_file, "wxe");
        if (!f)
                return log_error_errno(errno, "Failed to create unit file %s: %m",
                                       unit_file);

        fprintf(f,
                "# Automatically generated by %s\n\n"
                "[Unit]\n"
                "Description=Grow File System on %%f\n"
                "Documentation=man:[email protected](8)\n"
                "DefaultDependencies=no\n"
                "BindsTo=%%i.mount\n"
                "After=%%i.mount\n"
                "Before=shutdown.target\n"
                "Before=%s\n"
                "\n"
                "[Service]\n"
                "Type=oneshot\n"
                "RemainAfterExit=yes\n"
                "ExecStart="SYSTEMD_GROWFS_PATH " %s\n"
                "TimeoutSec=0\n",
                program_invocation_short_name,
                target,
                escaped);

        return generator_add_symlink(dir, where_unit, "wants", unit);
}
Пример #4
0
int generator_write_initrd_root_device_deps(const char *dir, const char *what) {
        _cleanup_free_ char *unit = NULL;
        int r;

        r = unit_name_from_path(what, ".device", &unit);
        if (r < 0)
                return log_error_errno(r, "Failed to make unit name from path: %m");

        return write_drop_in_format(dir, SPECIAL_INITRD_ROOT_DEVICE_TARGET, 50, "root-device",
                                    "# Automatically generated by %s\n\n"
                                    "[Unit]\nRequires=%s\nAfter=%s",
                                    program_invocation_short_name, unit, unit);
}
Пример #5
0
static int write_fsck_sysroot_service(const char *dir, const char *what) {
        _cleanup_free_ char *device = NULL, *escaped = NULL, *escaped2 = NULL;
        _cleanup_fclose_ FILE *f = NULL;
        const char *unit;
        int r;

        escaped = specifier_escape(what);
        if (!escaped)
                return log_oom();

        escaped2 = cescape(escaped);
        if (!escaped2)
                return log_oom();

        unit = strjoina(dir, "/systemd-fsck-root.service");
        log_debug("Creating %s", unit);

        r = unit_name_from_path(what, ".device", &device);
        if (r < 0)
                return log_error_errno(r, "Failed to convert device \"%s\" to unit name: %m", what);

        f = fopen(unit, "wxe");
        if (!f)
                return log_error_errno(errno, "Failed to create unit file %s: %m", unit);

        fprintf(f,
                "# Automatically generated by %1$s\n\n"
                "[Unit]\n"
                "Description=File System Check on %2$s\n"
                "Documentation=man:systemd-fsck-root.service(8)\n"
                "DefaultDependencies=no\n"
                "BindsTo=%3$s\n"
                "After=initrd-root-device.target local-fs-pre.target %3$s\n"
                "Before=shutdown.target\n"
                "\n"
                "[Service]\n"
                "Type=oneshot\n"
                "RemainAfterExit=yes\n"
                "ExecStart=" SYSTEMD_FSCK_PATH " %4$s\n"
                "TimeoutSec=0\n",
                program_invocation_short_name,
                escaped,
                device,
                escaped2);

        r = fflush_and_check(f);
        if (r < 0)
                return log_error_errno(r, "Failed to write unit file %s: %m", unit);

        return 0;
}
Пример #6
0
static void test_u_n_f_p_one(const char *path, const char *suffix, const char *expected, int ret) {
        _cleanup_free_ char *t = NULL;

        assert_se(unit_name_from_path(path, suffix, &t) == ret);
        puts(strna(t));
        assert_se(streq_ptr(t, expected));

        if (t) {
                _cleanup_free_ char *k = NULL;
                assert_se(unit_name_to_path(t, &k) == 0);
                puts(strna(k));
                assert_se(path_equal(k, isempty(path) ? "/" : path));
        }
}
static int add_swap(const char *path) {
        _cleanup_free_ char *name = NULL, *unit = NULL, *lnk = NULL;
        _cleanup_fclose_ FILE *f = NULL;

        assert(path);

        log_debug("Adding swap: %s", path);

        name = unit_name_from_path(path, ".swap");
        if (!name)
                return log_oom();

        unit = strjoin(arg_dest, "/", name, NULL);
        if (!unit)
                return log_oom();

        f = fopen(unit, "wxe");
        if (!f) {
                log_error("Failed to create unit file %s: %m", unit);
                return -errno;
        }

        fprintf(f,
                "# Automatically generated by systemd-gpt-auto-generator\n\n"
                "[Unit]\n"
                "Description=Swap Partition\n"
                "Documentation=man:systemd-gpt-auto-generator(8)\n\n"
                "[Swap]\n"
                "What=%s\n",
                path);

        fflush(f);
        if (ferror(f)) {
                log_error("Failed to write unit file %s: %m", unit);
                return -errno;
        }

        lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET ".wants/", name, NULL);
        if (!lnk)
                return log_oom();

        mkdir_parents_label(lnk, 0755);
        if (symlink(unit, lnk) < 0) {
                log_error("Failed to create symlink %s: %m", lnk);
                return -errno;
        }

        return 0;
}
Пример #8
0
static int device_name(const char *path, char **unit) {
        char *p;

        assert(path);

        if (!is_device_path(path))
                return 0;

        p = unit_name_from_path(path, ".device");
        if (!p)
                return log_oom();

        *unit = p;
        return 1;
}
Пример #9
0
int generator_write_timeouts(
                const char *dir,
                const char *what,
                const char *where,
                const char *opts,
                char **filtered) {

        /* Allow configuration how long we wait for a device that
         * backs a mount point to show up. This is useful to support
         * endless device timeouts for devices that show up only after
         * user input, like crypto devices. */

        _cleanup_free_ char *node = NULL, *unit = NULL, *timeout = NULL;
        usec_t u;
        int r;

        r = fstab_filter_options(opts, "comment=systemd.device-timeout\0"
                                       "x-systemd.device-timeout\0",
                                 NULL, &timeout, filtered);
        if (r <= 0)
                return r;

        r = parse_sec_fix_0(timeout, &u);
        if (r < 0) {
                log_warning("Failed to parse timeout for %s, ignoring: %s", where, timeout);
                return 0;
        }

        node = fstab_node_to_udev_node(what);
        if (!node)
                return log_oom();
        if (!is_device_path(node)) {
                log_warning("x-systemd.device-timeout ignored for %s", what);
                return 0;
        }

        r = unit_name_from_path(node, ".device", &unit);
        if (r < 0)
                return log_error_errno(r, "Failed to make unit name from path: %m");

        return write_drop_in_format(dir, unit, 50, "device-timeout",
                                    "# Automatically generated by %s\n\n"
                                    "[Unit]\n"
                                    "JobRunningTimeoutSec=%s",
                                    program_invocation_short_name,
                                    timeout);
}
Пример #10
0
static int device_setup_unit(Manager *m, struct udev_device *dev, const char *path, bool main) {
        _cleanup_free_ char *e = NULL;
        const char *sysfs = NULL;
        Unit *u = NULL;
        bool delete;
        int r;

        assert(m);
        assert(path);

        if (dev) {
                sysfs = udev_device_get_syspath(dev);
                if (!sysfs)
                        return 0;
        }

        r = unit_name_from_path(path, ".device", &e);
        if (r < 0)
                return log_error_errno(r, "Failed to generate unit name from device path: %m");

        u = manager_get_unit(m, e);

        /* The device unit can still be present even if the device was
         * unplugged: a mount unit can reference it hence preventing
         * the GC to have garbaged it. That's desired since the device
         * unit may have a dependency on the mount unit which was
         * added during the loading of the later. */
        if (dev && u && DEVICE(u)->state == DEVICE_PLUGGED) {
                /* This unit is in plugged state: we're sure it's
                 * attached to a device. */
                if (!path_equal(DEVICE(u)->sysfs, sysfs)) {
                        log_unit_debug(u, "Dev %s appeared twice with different sysfs paths %s and %s",
                                       e, DEVICE(u)->sysfs, sysfs);
                        return -EEXIST;
                }
        }

        if (!u) {
                delete = true;

                r = unit_new_for_name(m, sizeof(Device), e, &u);
                if (r < 0)
                        goto fail;

                unit_add_to_load_queue(u);
        } else
Пример #11
0
static int device_add_escaped_name(Unit *u, const char *dn) {
        _cleanup_free_ char *e = NULL;
        int r;

        assert(u);
        assert(dn);
        assert(dn[0] == '/');

        e = unit_name_from_path(dn, ".device");
        if (!e)
                return -ENOMEM;

        r = unit_add_name(u, e);
        if (r < 0 && r != -EEXIST)
                return r;

        return 0;
}
Пример #12
0
static int device_add_escaped_name(Unit *u, const char *dn) {
        char *e;
        int r;

        assert(u);
        assert(dn);
        assert(dn[0] == '/');

        if (!(e = unit_name_from_path(dn, ".device")))
                return -ENOMEM;

        r = unit_add_name(u, e);
        free(e);

        if (r < 0 && r != -EEXIST)
                return r;

        return 0;
}
Пример #13
0
static int device_find_escape_name(Manager *m, const char *dn, Unit **_u) {
        _cleanup_free_ char *e = NULL;
        Unit *u;

        assert(m);
        assert(dn);
        assert(dn[0] == '/');
        assert(_u);

        e = unit_name_from_path(dn, ".device");
        if (!e)
                return -ENOMEM;

        u = manager_get_unit(m, e);
        if (u) {
                *_u = u;
                return 1;
        }

        return 0;
}
Пример #14
0
int generator_write_device_deps(
                const char *dir,
                const char *what,
                const char *where,
                const char *opts) {

        /* fstab records that specify _netdev option should apply the network
         * ordering on the actual device depending on network connection. If we
         * are not mounting real device (NFS, CIFS), we rely on _netdev effect
         * on the mount unit itself. */

        _cleanup_free_ char *node = NULL, *unit = NULL;
        int r;

        if (!fstab_test_option(opts, "_netdev\0"))
                return 0;

        node = fstab_node_to_udev_node(what);
        if (!node)
                return log_oom();

        /* Nothing to apply dependencies to. */
        if (!is_device_path(node))
                return 0;

        r = unit_name_from_path(node, ".device", &unit);
        if (r < 0)
                return log_error_errno(r, "Failed to make unit name from path \"%s\": %m",
                                       node);

        /* See mount_add_default_dependencies for explanation why we create such
         * dependencies. */
        return write_drop_in_format(dir, unit, 50, "netdev-dependencies",
                                    "# Automatically generated by %s\n\n"
                                    "[Unit]\n"
                                    "After=" SPECIAL_NETWORK_ONLINE_TARGET " " SPECIAL_NETWORK_TARGET "\n"
                                    "Wants=" SPECIAL_NETWORK_ONLINE_TARGET "\n",
                                    program_invocation_short_name);
}
Пример #15
0
static int add_automount(
                const char *id,
                const char *what,
                const char *where,
                const char *fstype,
                bool rw,
                const char *options,
                const char *description,
                usec_t timeout) {

        _cleanup_free_ char *unit = NULL, *lnk = NULL;
        _cleanup_free_ char *opt, *p = NULL;
        _cleanup_fclose_ FILE *f = NULL;
        int r;

        assert(id);
        assert(where);
        assert(description);

        if (options)
                opt = strjoin(options, ",noauto", NULL);
        else
                opt = strdup("noauto");
        if (!opt)
                return log_oom();

        r = add_mount(id,
                      what,
                      where,
                      fstype,
                      rw,
                      opt,
                      description,
                      NULL);
        if (r < 0)
                return r;

        r = unit_name_from_path(where, ".automount", &unit);
        if (r < 0)
                return log_error_errno(r, "Failed to generate unit name: %m");

        p = strjoin(arg_dest, "/", unit, NULL);
        if (!p)
                return log_oom();

        f = fopen(p, "wxe");
        if (!f)
                return log_error_errno(errno, "Failed to create unit file %s: %m", unit);

        fprintf(f,
                "# Automatically generated by systemd-gpt-auto-generator\n\n"
                "[Unit]\n"
                "Description=%s\n"
                "Documentation=man:systemd-gpt-auto-generator(8)\n"
                "[Automount]\n"
                "Where=%s\n"
                "TimeoutIdleSec=%lld\n",
                description,
                where,
                (unsigned long long)timeout / USEC_PER_SEC);

        r = fflush_and_check(f);
        if (r < 0)
                return log_error_errno(r, "Failed to write unit file %s: %m", p);

        lnk = strjoin(arg_dest, "/" SPECIAL_LOCAL_FS_TARGET ".wants/", unit, NULL);
        if (!lnk)
                return log_oom();
        mkdir_parents_label(lnk, 0755);

        if (symlink(p, lnk) < 0)
                return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);

        return 0;
}
Пример #16
0
static int add_mount(const char *what, const char *where, struct mntent *me) {
        char *name = NULL, *unit = NULL, *lnk = NULL, *device = NULL, *automount_name = NULL, *automount_unit = NULL;
        FILE *f = NULL;
        bool noauto, nofail, automount, isbind, isnetwork;
        int r;
        const char *post, *pre;

        assert(what);
        assert(where);
        assert(me);

        if (streq(me->mnt_type, "autofs"))
                return 0;

        if (!is_path(where)) {
                log_warning("Mount point %s is not a valid path, ignoring.", where);
                return 0;
        }

        if (mount_point_is_api(where) ||
            mount_point_ignore(where))
                return 0;

        isnetwork = mount_is_network(me);
        isbind = mount_is_bind(me);

        noauto = !!hasmntopt(me, "noauto");
        nofail = !!hasmntopt(me, "nofail");
        automount =
                hasmntopt(me, "comment=systemd.automount") ||
                hasmntopt(me, "x-systemd.automount");

        if (isnetwork) {
                post = SPECIAL_REMOTE_FS_TARGET;
                pre = SPECIAL_REMOTE_FS_PRE_TARGET;
        } else {
                post = SPECIAL_LOCAL_FS_TARGET;
                pre = SPECIAL_LOCAL_FS_PRE_TARGET;
        }

        name = unit_name_from_path(where, ".mount");
        if (!name) {
                r = log_oom();
                goto finish;
        }

        unit = strjoin(arg_dest, "/", name, NULL);
        if (!unit) {
                r = log_oom();
                goto finish;
        }

        f = fopen(unit, "wxe");
        if (!f) {
                r = -errno;
                log_error("Failed to create unit file: %m");
                goto finish;
        }

        fputs("# Automatically generated by systemd-fstab-generator\n\n"
              "[Unit]\n"
              "SourcePath=/etc/fstab\n"
              "DefaultDependencies=no\n", f);

        if (!path_equal(where, "/"))
                fprintf(f,
                        "After=%s\n"
                        "Wants=%s\n"
                        "Conflicts=" SPECIAL_UMOUNT_TARGET "\n"
                        "Before=" SPECIAL_UMOUNT_TARGET "\n",
                        pre,
                        pre);


        if (!noauto && !nofail && !automount)
                fprintf(f,
                        "Before=%s\n",
                        post);

        fprintf(f,
                "\n"
                "[Mount]\n"
                "What=%s\n"
                "Where=%s\n"
                "Type=%s\n"
                "FsckPassNo=%i\n",
                what,
                where,
                me->mnt_type,
                me->mnt_passno);

        if (!isempty(me->mnt_opts) &&
            !streq(me->mnt_opts, "defaults"))
                fprintf(f,
                        "Options=%s\n",
                        me->mnt_opts);

        fflush(f);
        if (ferror(f)) {
                log_error("Failed to write unit file: %m");
                r = -errno;
                goto finish;
        }

        if (!noauto) {
                lnk = strjoin(arg_dest, "/", post, nofail || automount ? ".wants/" : ".requires/", name, NULL);
                if (!lnk) {
                        r = log_oom();
                        goto finish;
                }

                mkdir_parents_label(lnk, 0755);
                if (symlink(unit, lnk) < 0) {
                        log_error("Failed to create symlink: %m");
                        r = -errno;
                        goto finish;
                }

                if (!isbind &&
                    !path_equal(where, "/")) {

                        r = device_name(what, &device);
                        if (r < 0)
                                goto finish;

                        if (r > 0) {
                                free(lnk);
                                lnk = strjoin(arg_dest, "/", device, ".wants/", name, NULL);
                                if (!lnk) {
                                        r = log_oom();
                                        goto finish;
                                }

                                mkdir_parents_label(lnk, 0755);
                                if (symlink(unit, lnk) < 0) {
                                        log_error("Failed to create symlink: %m");
                                        r = -errno;
                                        goto finish;
                                }
                        }
                }
        }

        if (automount && !path_equal(where, "/")) {
                automount_name = unit_name_from_path(where, ".automount");
                if (!name) {
                        r = log_oom();
                        goto finish;
                }

                automount_unit = strjoin(arg_dest, "/", automount_name, NULL);
                if (!automount_unit) {
                        r = log_oom();
                        goto finish;
                }

                fclose(f);
                f = fopen(automount_unit, "wxe");
                if (!f) {
                        r = -errno;
                        log_error("Failed to create unit file: %m");
                        goto finish;
                }

                fprintf(f,
                        "# Automatically generated by systemd-fstab-generator\n\n"
                        "[Unit]\n"
                        "SourcePath=/etc/fstab\n"
                        "DefaultDependencies=no\n"
                        "Conflicts=" SPECIAL_UMOUNT_TARGET "\n"
                        "Before=" SPECIAL_UMOUNT_TARGET " %s\n"
                        "\n"
                        "[Automount]\n"
                        "Where=%s\n",
                        post,
                        where);

                fflush(f);
                if (ferror(f)) {
                        log_error("Failed to write unit file: %m");
                        r = -errno;
                        goto finish;
                }

                free(lnk);
                lnk = strjoin(arg_dest, "/", post, nofail ? ".wants/" : ".requires/", automount_name, NULL);
                if (!lnk) {
                        r = log_oom();
                        goto finish;
                }

                mkdir_parents_label(lnk, 0755);
                if (symlink(automount_unit, lnk) < 0) {
                        log_error("Failed to create symlink: %m");
                        r = -errno;
                        goto finish;
                }
        }

        r = 0;
finish:
        if (f)
                fclose(f);

        free(unit);
        free(lnk);
        free(name);
        free(device);
        free(automount_name);
        free(automount_unit);

        return r;
}
Пример #17
0
static int add_swap(const char *what, struct mntent *me) {
        char *name = NULL, *unit = NULL, *lnk = NULL, *device = NULL;
        FILE *f = NULL;
        bool noauto, nofail;
        int r, pri = -1;

        assert(what);
        assert(me);

        r = mount_find_pri(me, &pri);
        if (r < 0) {
                log_error("Failed to parse priority");
                return pri;
        }

        noauto = !!hasmntopt(me, "noauto");
        nofail = !!hasmntopt(me, "nofail");

        name = unit_name_from_path(what, ".swap");
        if (!name) {
                r = log_oom();
                goto finish;
        }

        unit = strjoin(arg_dest, "/", name, NULL);
        if (!unit) {
                r = log_oom();
                goto finish;
        }

        f = fopen(unit, "wxe");
        if (!f) {
                r = -errno;
                log_error("Failed to create unit file: %m");
                goto finish;
        }

        fputs("# Automatically generated by systemd-fstab-generator\n\n"
              "[Unit]\n"
              "SourcePath=/etc/fstab\n"
              "DefaultDependencies=no\n"
              "Conflicts=" SPECIAL_UMOUNT_TARGET "\n"
              "Before=" SPECIAL_UMOUNT_TARGET "\n", f);

        if (!noauto && !nofail)
                fputs("Before=" SPECIAL_SWAP_TARGET "\n", f);

        fprintf(f,
                "\n"
                "[Swap]\n"
                "What=%s\n",
                what);

        if (pri >= 0)
                fprintf(f,
                        "Priority=%i\n",
                        pri);

        fflush(f);
        if (ferror(f)) {
                log_error("Failed to write unit file: %m");
                r = -errno;
                goto finish;
        }

        if (!noauto) {
                lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET ".wants/", name, NULL);
                if (!lnk) {
                        r = log_oom();
                        goto finish;
                }

                mkdir_parents_label(lnk, 0755);
                if (symlink(unit, lnk) < 0) {
                        log_error("Failed to create symlink: %m");
                        r = -errno;
                        goto finish;
                }

                r = device_name(what, &device);
                if (r < 0)
                        goto finish;

                if (r > 0) {
                        free(lnk);
                        lnk = strjoin(arg_dest, "/", device, ".wants/", name, NULL);
                        if (!lnk) {
                                r = log_oom();
                                goto finish;
                        }

                        mkdir_parents_label(lnk, 0755);
                        if (symlink(unit, lnk) < 0) {
                                log_error("Failed to create symlink: %m");
                                r = -errno;
                                goto finish;
                        }
                }
        }

        r = 0;
finish:
        if (f)
                fclose(f);

        free(unit);
        free(lnk);
        free(name);
        free(device);

        return r;
}
Пример #18
0
static int add_swap(const char *what, struct mntent *me) {
        _cleanup_free_ char *name = NULL, *unit = NULL, *lnk = NULL;
        _cleanup_fclose_ FILE *f = NULL;
        _cleanup_free_ char *discard = NULL;

        bool noauto;
        int r, pri = -1;

        assert(what);
        assert(me);

        if (detect_container(NULL) > 0) {
                log_info("Running in a container, ignoring fstab swap entry for %s.", what);
                return 0;
        }

        r = mount_find_pri(me, &pri);
        if (r < 0) {
                log_error("Failed to parse priority");
                return r;
        }

        r = mount_find_discard(me, &discard);
        if (r < 0) {
                log_error("Failed to parse discard");
                return r;
        }

        noauto = !!hasmntopt(me, "noauto");

        name = unit_name_from_path(what, ".swap");
        if (!name)
                return log_oom();

        unit = strjoin(arg_dest, "/", name, NULL);
        if (!unit)
                return log_oom();

        f = fopen(unit, "wxe");
        if (!f) {
                if (errno == EEXIST)
                        log_error("Failed to create swap unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit);
                else
                        log_error("Failed to create unit file %s: %m", unit);
                return -errno;
        }

        fprintf(f,
                "# Automatically generated by systemd-fstab-generator\n\n"
                "[Unit]\n"
                "SourcePath=/etc/fstab\n"
                "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n\n"
                "[Swap]\n"
                "What=%s\n",
                what);

        if (pri >= 0)
                fprintf(f, "Priority=%i\n", pri);

        if (discard)
                fprintf(f, "Discard=%s\n", discard);

        fflush(f);
        if (ferror(f)) {
                log_error("Failed to write unit file %s: %m", unit);
                return -errno;
        }

        /* use what as where, to have a nicer error message */
        r = generator_write_timeouts(arg_dest, what, what, me->mnt_opts, NULL);
        if (r < 0)
                return r;

        if (!noauto) {
                lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET ".wants/", name, NULL);
                if (!lnk)
                        return log_oom();

                mkdir_parents_label(lnk, 0755);
                if (symlink(unit, lnk) < 0) {
                        log_error("Failed to create symlink %s: %m", lnk);
                        return -errno;
                }
        }

        return 0;
}
Пример #19
0
int generator_hook_up_mkfs(
                const char *dir,
                const char *what,
                const char *where,
                const char *type) {

        _cleanup_free_ char *node = NULL, *unit = NULL, *escaped = NULL, *where_unit = NULL;
        _cleanup_fclose_ FILE *f = NULL;
        const char *unit_file;
        int r;

        node = fstab_node_to_udev_node(what);
        if (!node)
                return log_oom();

        /* Nothing to work on. */
        if (!is_device_path(node)) {
                log_error("Cannot format something that is not a device node: %s", node);
                return -EINVAL;
        }

        if (!type || streq(type, "auto")) {
                log_error("Cannot format partition %s, filesystem type is not specified", node);
                return -EINVAL;
        }

        r = unit_name_from_path_instance("systemd-mkfs", node, ".service", &unit);
        if (r < 0)
                return log_error_errno(r, "Failed to make unit instance name from path \"%s\": %m",
                                       node);

        unit_file = strjoina(dir, "/", unit);
        log_debug("Creating %s", unit_file);

        escaped = cescape(node);
        if (!escaped)
                return log_oom();

        r = unit_name_from_path(where, ".mount", &where_unit);
        if (r < 0)
                return log_error_errno(r, "Failed to make unit name from path \"%s\": %m",
                                       where);

        f = fopen(unit_file, "wxe");
        if (!f)
                return log_error_errno(errno, "Failed to create unit file %s: %m",
                                       unit_file);

        fprintf(f,
                "# Automatically generated by %s\n\n"
                "[Unit]\n"
                "Description=Make File System on %%f\n"
                "Documentation=man:[email protected](8)\n"
                "DefaultDependencies=no\n"
                "BindsTo=%%i.device\n"
                "After=%%i.device\n"
                /* fsck might or might not be used, so let's be safe and order
                 * ourselves before both [email protected] and the mount unit. */
                "Before=systemd-fsck@%%i.service\n"
                "Before=%s\n"
                "Before=shutdown.target\n"
                "\n"
                "[Service]\n"
                "Type=oneshot\n"
                "RemainAfterExit=yes\n"
                "ExecStart="SYSTEMD_MAKEFS_PATH " %s %s\n"
                "TimeoutSec=0\n",
                program_invocation_short_name,
                where_unit,
                type,
                escaped);
        // XXX: what about local-fs-pre.target?

        r = fflush_and_check(f);
        if (r < 0)
                return log_error_errno(r, "Failed to write unit file %s: %m", unit_file);

        return generator_add_symlink(dir, where_unit, "requires", unit);
}
Пример #20
0
int generator_hook_up_mkswap(
                const char *dir,
                const char *what) {

        _cleanup_free_ char *node = NULL, *unit = NULL, *escaped = NULL, *where_unit = NULL;
        _cleanup_fclose_ FILE *f = NULL;
        const char *unit_file;
        int r;

        node = fstab_node_to_udev_node(what);
        if (!node)
                return log_oom();

        /* Nothing to work on. */
        if (!is_device_path(node)) {
                log_error("Cannot format something that is not a device node: %s", node);
                return -EINVAL;
        }

        r = unit_name_from_path_instance("systemd-mkswap", node, ".service", &unit);
        if (r < 0)
                return log_error_errno(r, "Failed to make unit instance name from path \"%s\": %m",
                                       node);

        unit_file = strjoina(dir, "/", unit);
        log_debug("Creating %s", unit_file);

        escaped = cescape(node);
        if (!escaped)
                return log_oom();

        r = unit_name_from_path(what, ".swap", &where_unit);
        if (r < 0)
                return log_error_errno(r, "Failed to make unit name from path \"%s\": %m",
                                       what);

        f = fopen(unit_file, "wxe");
        if (!f)
                return log_error_errno(errno, "Failed to create unit file %s: %m",
                                       unit_file);

        fprintf(f,
                "# Automatically generated by %s\n\n"
                "[Unit]\n"
                "Description=Make Swap on %%f\n"
                "Documentation=man:[email protected](8)\n"
                "DefaultDependencies=no\n"
                "BindsTo=%%i.device\n"
                "After=%%i.device\n"
                "Before=%s\n"
                "Before=shutdown.target\n"
                "\n"
                "[Service]\n"
                "Type=oneshot\n"
                "RemainAfterExit=yes\n"
                "ExecStart="SYSTEMD_MAKEFS_PATH " swap %s\n"
                "TimeoutSec=0\n",
                program_invocation_short_name,
                where_unit,
                escaped);

        r = fflush_and_check(f);
        if (r < 0)
                return log_error_errno(r, "Failed to write unit file %s: %m", unit_file);

        return generator_add_symlink(dir, where_unit, "requires", unit);
}
Пример #21
0
static int add_mount(
                const char *what,
                const char *where,
                const char *type,
                const char *opts,
                int passno,
                bool noauto,
                bool nofail,
                bool automount,
                const char *post,
                const char *source) {
        _cleanup_free_ char
                *name = NULL, *unit = NULL, *lnk = NULL,
                *automount_name = NULL, *automount_unit = NULL;
        _cleanup_fclose_ FILE *f = NULL;

        assert(what);
        assert(where);
        assert(type);
        assert(opts);
        assert(source);

        if (streq(type, "autofs"))
                return 0;

        if (!is_path(where)) {
                log_warning("Mount point %s is not a valid path, ignoring.", where);
                return 0;
        }

        if (mount_point_is_api(where) ||
            mount_point_ignore(where))
                return 0;

        name = unit_name_from_path(where, ".mount");
        if (!name)
                return log_oom();

        unit = strjoin(arg_dest, "/", name, NULL);
        if (!unit)
                return log_oom();

        f = fopen(unit, "wxe");
        if (!f) {
                if (errno == EEXIST)
                        log_error("Failed to create mount unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit);
                else
                        log_error("Failed to create unit file %s: %m", unit);
                return -errno;
        }

        fprintf(f,
              "# Automatically generated by systemd-fstab-generator\n\n"
              "[Unit]\n"
              "SourcePath=%s\n",
              source);

        if (post && !noauto && !nofail && !automount)
                fprintf(f,
                        "Before=%s\n",
                        post);

        if (passno > 0) {
                if (streq(where, "/")) {
                        lnk = strjoin(arg_dest, "/", SPECIAL_LOCAL_FS_TARGET, ".wants/", "systemd-fsck-root.service", NULL);
                        if (!lnk)
                                return log_oom();

                        mkdir_parents_label(lnk, 0755);
                        if (symlink("systemd-fsck-root.service", lnk) < 0) {
                                log_error("Failed to create symlink %s: %m", lnk);
                                return -errno;
                        }
                } else {
                        _cleanup_free_ char *fsck = NULL;

                        fsck = unit_name_from_path_instance("systemd-fsck", what, ".service");
                        if (!fsck)
                                return log_oom();

                        fprintf(f,
                                "Requires=%s\n"
                                "After=%s\n",
                                fsck,
                                fsck);
                }
        }


        fprintf(f,
                "\n"
                "[Mount]\n"
                "What=%s\n"
                "Where=%s\n"
                "Type=%s\n",
                what,
                where,
                type);

        if (!isempty(opts) &&
            !streq(opts, "defaults"))
                fprintf(f,
                        "Options=%s\n",
                        opts);

        fflush(f);
        if (ferror(f)) {
                log_error("Failed to write unit file %s: %m", unit);
                return -errno;
        }

        if (!noauto) {
                if (post) {
                        free(lnk);
                        lnk = strjoin(arg_dest, "/", post, nofail || automount ? ".wants/" : ".requires/", name, NULL);
                        if (!lnk)
                                return log_oom();

                        mkdir_parents_label(lnk, 0755);
                        if (symlink(unit, lnk) < 0) {
                                log_error("Failed to create symlink %s: %m", lnk);
                                return -errno;
                        }
                }
        }

        if (automount && !path_equal(where, "/")) {
                automount_name = unit_name_from_path(where, ".automount");
                if (!automount_name)
                        return log_oom();

                automount_unit = strjoin(arg_dest, "/", automount_name, NULL);
                if (!automount_unit)
                        return log_oom();

                fclose(f);
                f = fopen(automount_unit, "wxe");
                if (!f) {
                        log_error("Failed to create unit file %s: %m", automount_unit);
                        return -errno;
                }

                fprintf(f,
                        "# Automatically generated by systemd-fstab-generator\n\n"
                        "[Unit]\n"
                        "SourcePath=%s\n",
                        source);

                if (post)
                        fprintf(f,
                                "Before= %s\n",
                                post);

                fprintf(f,
                        "[Automount]\n"
                        "Where=%s\n",
                        where);

                fflush(f);
                if (ferror(f)) {
                        log_error("Failed to write unit file %s: %m", automount_unit);
                        return -errno;
                }

                free(lnk);
                lnk = strjoin(arg_dest, "/", post, nofail ? ".wants/" : ".requires/", automount_name, NULL);
                if (!lnk)
                        return log_oom();

                mkdir_parents_label(lnk, 0755);
                if (symlink(automount_unit, lnk) < 0) {
                        log_error("Failed to create symlink %s: %m", lnk);
                        return -errno;
                }
        }

        return 0;
}
Пример #22
0
static int create_disk(
                const char *name,
                const char *device,
                const char *password,
                const char *options) {

        _cleanup_free_ char *p = NULL, *n = NULL, *d = NULL, *u = NULL, *to = NULL, *e = NULL,
                *filtered = NULL;
        _cleanup_fclose_ FILE *f = NULL;
        bool noauto, nofail, tmp, swap;
        char *from;
        int r;

        assert(name);
        assert(device);

        noauto = fstab_test_yes_no_option(options, "noauto\0" "auto\0");
        nofail = fstab_test_yes_no_option(options, "nofail\0" "fail\0");
        tmp = fstab_test_option(options, "tmp\0");
        swap = fstab_test_option(options, "swap\0");

        if (tmp && swap) {
                log_error("Device '%s' cannot be both 'tmp' and 'swap'. Ignoring.", name);
                return -EINVAL;
        }

        e = unit_name_escape(name);
        if (!e)
                return log_oom();

        r = unit_name_build("systemd-cryptsetup", e, ".service", &n);
        if (r < 0)
                return log_error_errno(r, "Failed to generate unit name: %m");

        p = strjoin(arg_dest, "/", n, NULL);
        if (!p)
                return log_oom();

        u = fstab_node_to_udev_node(device);
        if (!u)
                return log_oom();

        r = unit_name_from_path(u, ".device", &d);
        if (r < 0)
                return log_error_errno(r, "Failed to generate unit name: %m");

        f = fopen(p, "wxe");
        if (!f)
                return log_error_errno(errno, "Failed to create unit file %s: %m", p);

        fputs(
                "# Automatically generated by systemd-cryptsetup-generator\n\n"
                "[Unit]\n"
                "Description=Cryptography Setup for %I\n"
                "Documentation=man:crypttab(5) man:systemd-cryptsetup-generator(8) man:[email protected](8)\n"
                "SourcePath=/etc/crypttab\n"
                "DefaultDependencies=no\n"
                "Conflicts=umount.target\n"
                "BindsTo=dev-mapper-%i.device\n"
                "IgnoreOnIsolate=true\n"
                "After=cryptsetup-pre.target\n",
                f);

        if (!nofail)
                fprintf(f,
                        "Before=cryptsetup.target\n");

        if (password) {
                if (STR_IN_SET(password, "/dev/urandom", "/dev/random", "/dev/hw_random"))
                        fputs("After=systemd-random-seed.service\n", f);
                else if (!streq(password, "-") && !streq(password, "none")) {
                        _cleanup_free_ char *uu;

                        uu = fstab_node_to_udev_node(password);
                        if (!uu)
                                return log_oom();

                        if (!path_equal(uu, "/dev/null")) {

                                if (is_device_path(uu)) {
                                        _cleanup_free_ char *dd = NULL;

                                        r = unit_name_from_path(uu, ".device", &dd);
                                        if (r < 0)
                                                return log_error_errno(r, "Failed to generate unit name: %m");

                                        fprintf(f, "After=%1$s\nRequires=%1$s\n", dd);
                                } else
                                        fprintf(f, "RequiresMountsFor=%s\n", password);
                        }
                }
        }

        if (is_device_path(u))
                fprintf(f,
                        "BindsTo=%s\n"
                        "After=%s\n"
                        "Before=umount.target\n",
                        d, d);
        else
                fprintf(f,
                        "RequiresMountsFor=%s\n",
                        u);

        r = generator_write_timeouts(arg_dest, device, name, options, &filtered);
        if (r < 0)
                return r;

        fprintf(f,
                "\n[Service]\n"
                "Type=oneshot\n"
                "RemainAfterExit=yes\n"
                "TimeoutSec=0\n" /* the binary handles timeouts anyway */
                "ExecStart=" SYSTEMD_CRYPTSETUP_PATH " attach '%s' '%s' '%s' '%s'\n"
                "ExecStop=" SYSTEMD_CRYPTSETUP_PATH " detach '%s'\n",
                name, u, strempty(password), strempty(filtered),
                name);

        if (tmp)
                fprintf(f,
                        "ExecStartPost=/sbin/mke2fs '/dev/mapper/%s'\n",
                        name);

        if (swap)
                fprintf(f,
                        "ExecStartPost=/sbin/mkswap '/dev/mapper/%s'\n",
                        name);

        r = fflush_and_check(f);
        if (r < 0)
                return log_error_errno(r, "Failed to write file %s: %m", p);

        from = strjoina("../", n);

        if (!noauto) {

                to = strjoin(arg_dest, "/", d, ".wants/", n, NULL);
                if (!to)
                        return log_oom();

                mkdir_parents_label(to, 0755);
                if (symlink(from, to) < 0)
                        return log_error_errno(errno, "Failed to create symlink %s: %m", to);

                free(to);
                if (!nofail)
                        to = strjoin(arg_dest, "/cryptsetup.target.requires/", n, NULL);
                else
                        to = strjoin(arg_dest, "/cryptsetup.target.wants/", n, NULL);
                if (!to)
                        return log_oom();

                mkdir_parents_label(to, 0755);
                if (symlink(from, to) < 0)
                        return log_error_errno(errno, "Failed to create symlink %s: %m", to);
        }

        free(to);
        to = strjoin(arg_dest, "/dev-mapper-", e, ".device.requires/", n, NULL);
        if (!to)
                return log_oom();

        mkdir_parents_label(to, 0755);
        if (symlink(from, to) < 0)
                return log_error_errno(errno, "Failed to create symlink %s: %m", to);

        if (!noauto && !nofail) {
                _cleanup_free_ char *dmname;
                dmname = strjoin("dev-mapper-", e, ".device", NULL);
                if (!dmname)
                        return log_oom();

                r = write_drop_in(arg_dest, dmname, 90, "device-timeout",
                                  "# Automatically generated by systemd-cryptsetup-generator \n\n"
                                  "[Unit]\nJobTimeoutSec=0");
                if (r < 0)
                        return log_error_errno(r, "Failed to write device drop-in: %m");
        }

        return 0;
}
Пример #23
0
static int add_swap(
                const char *what,
                struct mntent *me,
                bool noauto,
                bool nofail) {

        _cleanup_free_ char *name = NULL, *unit = NULL, *lnk = NULL, *filtered = NULL;
        _cleanup_fclose_ FILE *f = NULL;
        int r, pri = -1;
        const char *opts;

        assert(what);
        assert(me);

        if (access("/proc/swaps", F_OK) < 0) {
                log_info("Swap not supported, ignoring fstab swap entry for %s.", what);
                return 0;
        }

        if (detect_container(NULL) > 0) {
                log_info("Running in a container, ignoring fstab swap entry for %s.", what);
                return 0;
        }

        opts = me->mnt_opts;
        r = fstab_find_pri(opts, &pri);
        if (r < 0) {
                log_error_errno(r, "Failed to parse priority, ignoring: %m");

                /* Remove invalid pri field */
                r = fstab_filter_options(opts, "pri\0", NULL, NULL, &filtered);
                if (r < 0)
                        return log_error_errno(r, "Failed to parse options: %m");
                opts = filtered;
        }

        name = unit_name_from_path(what, ".swap");
        if (!name)
                return log_oom();

        unit = strjoin(arg_dest, "/", name, NULL);
        if (!unit)
                return log_oom();

        f = fopen(unit, "wxe");
        if (!f) {
                if (errno == EEXIST)
                        log_error("Failed to create swap unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit);
                else
                        log_error_errno(errno, "Failed to create unit file %s: %m", unit);
                return -errno;
        }

        fprintf(f,
                "# Automatically generated by systemd-fstab-generator\n\n"
                "[Unit]\n"
                "SourcePath=/etc/fstab\n"
                "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n\n"
                "[Swap]\n"
                "What=%s\n",
                what);

        /* Note that we currently pass the priority field twice, once
         * in Priority=, and once in Options= */
        if (pri >= 0)
                fprintf(f, "Priority=%i\n", pri);

        if (!isempty(opts) && !streq(opts, "defaults"))
                fprintf(f, "Options=%s\n", opts);

        r = fflush_and_check(f);
        if (r < 0)
                return log_error_errno(r, "Failed to write unit file %s: %m", unit);

        /* use what as where, to have a nicer error message */
        r = generator_write_timeouts(arg_dest, what, what, opts, NULL);
        if (r < 0)
                return r;

        if (!noauto) {
                lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET,
                              nofail ? ".wants/" : ".requires/", name, NULL);
                if (!lnk)
                        return log_oom();

                mkdir_parents_label(lnk, 0755);
                if (symlink(unit, lnk) < 0)
                        return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
        }

        return 0;
}
Пример #24
0
static int create_device(void) {
        _cleanup_free_ char *u = NULL, *v = NULL, *d = NULL, *e = NULL, *u_escaped = NULL, *v_escaped = NULL, *root_hash_escaped = NULL;
        _cleanup_fclose_ FILE *f = NULL;
        const char *to;
        int r;

        /* If all three pieces of information are missing, then verity is turned off */
        if (!arg_root_hash && !arg_data_what && !arg_hash_what)
                return 0;

        /* if one of them is missing however, the data is simply incomplete and this is an error */
        if (!arg_root_hash)
                log_error("Verity information incomplete, root hash unspecified.");
        if (!arg_data_what)
                log_error("Verity information incomplete, root data device unspecified.");
        if (!arg_hash_what)
                log_error("Verity information incomplete, root hash device unspecified.");

        if (!arg_root_hash || !arg_data_what || !arg_hash_what)
                return -EINVAL;

        log_debug("Using root verity data device %s,\n"
                  "                  hash device %s,\n"
                  "                and root hash %s.", arg_data_what, arg_hash_what, arg_root_hash);

        u = fstab_node_to_udev_node(arg_data_what);
        if (!u)
                return log_oom();
        v = fstab_node_to_udev_node(arg_hash_what);
        if (!v)
                return log_oom();

        u_escaped = specifier_escape(u);
        if (!u_escaped)
                return log_oom();
        v_escaped = specifier_escape(v);
        if (!v_escaped)
                return log_oom();

        r = unit_name_from_path(u, ".device", &d);
        if (r < 0)
                return log_error_errno(r, "Failed to generate unit name: %m");
        r = unit_name_from_path(v, ".device", &e);
        if (r < 0)
                return log_error_errno(r, "Failed to generate unit name: %m");

        root_hash_escaped = specifier_escape(arg_root_hash);
        if (!root_hash_escaped)
                return log_oom();

        r = generator_open_unit_file(arg_dest, NULL, SYSTEMD_VERITYSETUP_SERVICE, &f);
        if (r < 0)
                return r;

        fprintf(f,
                "[Unit]\n"
                "Description=Integrity Protection Setup for %%I\n"
                "Documentation=man:systemd-veritysetup-generator(8) man:[email protected](8)\n"
                "SourcePath=/proc/cmdline\n"
                "DefaultDependencies=no\n"
                "Conflicts=umount.target\n"
                "BindsTo=%s %s\n"
                "IgnoreOnIsolate=true\n"
                "After=cryptsetup-pre.target %s %s\n"
                "Before=cryptsetup.target umount.target\n"
                "\n[Service]\n"
                "Type=oneshot\n"
                "RemainAfterExit=yes\n"
                "ExecStart=" ROOTLIBEXECDIR "/systemd-veritysetup attach root '%s' '%s' '%s'\n"
                "ExecStop=" ROOTLIBEXECDIR "/systemd-veritysetup detach root\n",
                d, e,
                d, e,
                u_escaped, v_escaped, root_hash_escaped);

        r = fflush_and_check(f);
        if (r < 0)
                return log_error_errno(r, "Failed to write file unit "SYSTEMD_VERITYSETUP_SERVICE": %m");

        to = strjoina(arg_dest, "/cryptsetup.target.requires/" SYSTEMD_VERITYSETUP_SERVICE);

        (void) mkdir_parents(to, 0755);
        if (symlink("../" SYSTEMD_VERITYSETUP_SERVICE, to) < 0)
                return log_error_errno(errno, "Failed to create symlink %s: %m", to);

        return 0;
}
Пример #25
0
static int add_mount(
                const char *id,
                const char *what,
                const char *where,
                const char *fstype,
                bool rw,
                const char *options,
                const char *description,
                const char *post) {

        _cleanup_free_ char *unit = NULL, *lnk = NULL, *crypto_what = NULL, *p = NULL;
        _cleanup_fclose_ FILE *f = NULL;
        int r;

        assert(id);
        assert(what);
        assert(where);
        assert(description);

        log_debug("Adding %s: %s %s", where, what, strna(fstype));

        if (streq_ptr(fstype, "crypto_LUKS")) {

                r = add_cryptsetup(id, what, rw, &crypto_what);
                if (r < 0)
                        return r;

                what = crypto_what;
                fstype = NULL;
        }

        r = unit_name_from_path(where, ".mount", &unit);
        if (r < 0)
                return log_error_errno(r, "Failed to generate unit name: %m");

        p = strjoin(arg_dest, "/", unit, NULL);
        if (!p)
                return log_oom();

        f = fopen(p, "wxe");
        if (!f)
                return log_error_errno(errno, "Failed to create unit file %s: %m", unit);

        fprintf(f,
                "# Automatically generated by systemd-gpt-auto-generator\n\n"
                "[Unit]\n"
                "Description=%s\n"
                "Documentation=man:systemd-gpt-auto-generator(8)\n",
                description);

        if (post)
                fprintf(f, "Before=%s\n", post);

        r = generator_write_fsck_deps(f, arg_dest, what, where, fstype);
        if (r < 0)
                return r;

        fprintf(f,
                "\n"
                "[Mount]\n"
                "What=%s\n"
                "Where=%s\n",
                what, where);

        if (fstype)
                fprintf(f, "Type=%s\n", fstype);

        if (options)
                fprintf(f, "Options=%s,%s\n", options, rw ? "rw" : "ro");
        else
                fprintf(f, "Options=%s\n", rw ? "rw" : "ro");

        r = fflush_and_check(f);
        if (r < 0)
                return log_error_errno(r, "Failed to write unit file %s: %m", p);

        if (post) {
                lnk = strjoin(arg_dest, "/", post, ".requires/", unit, NULL);
                if (!lnk)
                        return log_oom();

                mkdir_parents_label(lnk, 0755);
                if (symlink(p, lnk) < 0)
                        return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
        }

        return 0;
}
Пример #26
0
static int add_swap(
    const char *what,
    struct mntent *me,
    bool noauto,
    bool nofail) {

    _cleanup_free_ char *name = NULL, *unit = NULL, *lnk = NULL;
    _cleanup_fclose_ FILE *f = NULL;
    int r;

    assert(what);
    assert(me);

    if (access("/proc/swaps", F_OK) < 0) {
        log_info("Swap not supported, ignoring fstab swap entry for %s.", what);
        return 0;
    }

    if (detect_container() > 0) {
        log_info("Running in a container, ignoring fstab swap entry for %s.", what);
        return 0;
    }

    r = unit_name_from_path(what, ".swap", &name);
    if (r < 0)
        return log_error_errno(r, "Failed to generate unit name: %m");

    unit = strjoin(arg_dest, "/", name);
    if (!unit)
        return log_oom();

    f = fopen(unit, "wxe");
    if (!f)
        return log_error_errno(errno,
                               errno == EEXIST ?
                               "Failed to create swap unit file %s, as it already exists. Duplicate entry in /etc/fstab?" :
                               "Failed to create unit file %s: %m",
                               unit);

    fprintf(f,
            "# Automatically generated by systemd-fstab-generator\n\n"
            "[Unit]\n"
            "SourcePath=/etc/fstab\n"
            "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n\n"
            "[Swap]\n"
            "What=%s\n",
            what);

    if (!isempty(me->mnt_opts) && !streq(me->mnt_opts, "defaults"))
        fprintf(f, "Options=%s\n", me->mnt_opts);

    r = fflush_and_check(f);
    if (r < 0)
        return log_error_errno(r, "Failed to write unit file %s: %m", unit);

    /* use what as where, to have a nicer error message */
    r = generator_write_timeouts(arg_dest, what, what, me->mnt_opts, NULL);
    if (r < 0)
        return r;

    if (!noauto) {
        lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET,
                      nofail ? ".wants/" : ".requires/", name, NULL);
        if (!lnk)
            return log_oom();

        mkdir_parents_label(lnk, 0755);
        if (symlink(unit, lnk) < 0)
            return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
    }

    return 0;
}
Пример #27
0
static int add_mount(
                const char *what,
                const char *where,
                const char *type,
                const char *opts,
                int passno,
                bool noauto,
                bool nofail,
                bool automount,
                bool isbind,
                const char *pre,
                const char *pre2,
                const char *online,
                const char *post,
                const char *source) {
        _cleanup_free_ char
                *name = NULL, *unit = NULL, *lnk = NULL, *device = NULL,
                *automount_name = NULL, *automount_unit = NULL;
        _cleanup_fclose_ FILE *f = NULL;
        int r;

        assert(what);
        assert(where);
        assert(type);
        assert(opts);
        assert(source);

        if (streq(type, "autofs"))
                return 0;

        if (!is_path(where)) {
                log_warning("Mount point %s is not a valid path, ignoring.", where);
                return 0;
        }

        if (mount_point_is_api(where) ||
            mount_point_ignore(where))
                return 0;

        name = unit_name_from_path(where, ".mount");
        if (!name)
                return log_oom();

        unit = strjoin(arg_dest, "/", name, NULL);
        if (!unit)
                return log_oom();

        f = fopen(unit, "wxe");
        if (!f) {
                if (errno == EEXIST)
                        log_error("Failed to create mount unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit);
                else
                        log_error("Failed to create unit file %s: %m", unit);
                return -errno;
        }

        fprintf(f,
              "# Automatically generated by systemd-fstab-generator\n\n"
              "[Unit]\n"
              "SourcePath=%s\n"
              "DefaultDependencies=no\n",
              source);

        if (!path_equal(where, "/")) {
                if (pre)
                        fprintf(f,
                                "After=%s\n",
                                pre);

                if (pre2)
                        fprintf(f,
                                "After=%s\n",
                                pre2);

                if (online)
                        fprintf(f,
                                "After=%s\n"
                                "Wants=%s\n",
                                online,
                                online);

                fprintf(f,
                        "Conflicts=" SPECIAL_UMOUNT_TARGET "\n"
                        "Before=" SPECIAL_UMOUNT_TARGET "\n");
        }

        if (post && !noauto && !nofail && !automount)
                fprintf(f,
                        "Before=%s\n",
                        post);

        fprintf(f,
                "\n"
                "[Mount]\n"
                "What=%s\n"
                "Where=%s\n"
                "Type=%s\n"
                "FsckPassNo=%i\n",
                what,
                where,
                type,
                passno);

        if (!isempty(opts) &&
            !streq(opts, "defaults"))
                fprintf(f,
                        "Options=%s\n",
                        opts);

        fflush(f);
        if (ferror(f)) {
                log_error("Failed to write unit file %s: %m", unit);
                return -errno;
        }

        if (!noauto) {
                /* don't start network mounts automatically, we do that via ifupdown hooks for now */
                if (post && !streq(post, SPECIAL_REMOTE_FS_TARGET)) {
                        lnk = strjoin(arg_dest, "/", post, nofail || automount ? ".wants/" : ".requires/", name, NULL);
                        if (!lnk)
                                return log_oom();

                        mkdir_parents_label(lnk, 0755);
                        if (symlink(unit, lnk) < 0) {
                                log_error("Failed to create symlink %s: %m", lnk);
                                return -errno;
                        }
                }

                if (!isbind &&
                    !path_equal(where, "/")) {

                        r = device_name(what, &device);
                        if (r < 0)
                                return r;

                        if (r > 0) {
                                free(lnk);
                                lnk = strjoin(arg_dest, "/", device, ".wants/", name, NULL);
                                if (!lnk)
                                        return log_oom();

                                mkdir_parents_label(lnk, 0755);
                                if (symlink(unit, lnk) < 0) {
                                        log_error("Failed to create symlink %s: %m", lnk);
                                        return -errno;
                                }
                        }
                }
        }

        if (automount && !path_equal(where, "/")) {
                automount_name = unit_name_from_path(where, ".automount");
                if (!name)
                        return log_oom();

                automount_unit = strjoin(arg_dest, "/", automount_name, NULL);
                if (!automount_unit)
                        return log_oom();

                fclose(f);
                f = fopen(automount_unit, "wxe");
                if (!f) {
                        log_error("Failed to create unit file %s: %m", automount_unit);
                        return -errno;
                }

                fprintf(f,
                        "# Automatically generated by systemd-fstab-generator\n\n"
                        "[Unit]\n"
                        "SourcePath=%s\n"
                        "DefaultDependencies=no\n"
                        "Conflicts=" SPECIAL_UMOUNT_TARGET "\n"
                        "Before=" SPECIAL_UMOUNT_TARGET "\n",
                        source);

                if (post)
                        fprintf(f,
                                "Before= %s\n",
                                post);

                fprintf(f,
                        "[Automount]\n"
                        "Where=%s\n",
                        where);

                fflush(f);
                if (ferror(f)) {
                        log_error("Failed to write unit file %s: %m", automount_unit);
                        return -errno;
                }

                free(lnk);
                lnk = strjoin(arg_dest, "/", post, nofail ? ".wants/" : ".requires/", automount_name, NULL);
                if (!lnk)
                        return log_oom();

                mkdir_parents_label(lnk, 0755);
                if (symlink(automount_unit, lnk) < 0) {
                        log_error("Failed to create symlink %s: %m", lnk);
                        return -errno;
                }
        }

        return 0;
}
Пример #28
0
static int add_cryptsetup(const char *id, const char *what, bool rw, char **device) {
        _cleanup_free_ char *e = NULL, *n = NULL, *p = NULL, *d = NULL, *to = NULL;
        _cleanup_fclose_ FILE *f = NULL;
        char *from, *ret;
        int r;

        assert(id);
        assert(what);
        assert(device);

        r = unit_name_from_path(what, ".device", &d);
        if (r < 0)
                return log_error_errno(r, "Failed to generate unit name: %m");

        e = unit_name_escape(id);
        if (!e)
                return log_oom();

        r = unit_name_build("systemd-cryptsetup", e, ".service", &n);
        if (r < 0)
                return log_error_errno(r, "Failed to generate unit name: %m");

        p = strjoin(arg_dest, "/", n, NULL);
        if (!p)
                return log_oom();

        f = fopen(p, "wxe");
        if (!f)
                return log_error_errno(errno, "Failed to create unit file %s: %m", p);

        fprintf(f,
                "# Automatically generated by systemd-gpt-auto-generator\n\n"
                "[Unit]\n"
                "Description=Cryptography Setup for %%I\n"
                "Documentation=man:systemd-gpt-auto-generator(8) man:[email protected](8)\n"
                "DefaultDependencies=no\n"
                "Conflicts=umount.target\n"
                "BindsTo=dev-mapper-%%i.device %s\n"
                "Before=umount.target cryptsetup.target\n"
                "After=%s\n"
                "IgnoreOnIsolate=true\n"
                "[Service]\n"
                "Type=oneshot\n"
                "RemainAfterExit=yes\n"
                "TimeoutSec=0\n" /* the binary handles timeouts anyway */
                "ExecStart=" SYSTEMD_CRYPTSETUP_PATH " attach '%s' '%s' '' '%s'\n"
                "ExecStop=" SYSTEMD_CRYPTSETUP_PATH " detach '%s'\n",
                d, d,
                id, what, rw ? "" : "read-only",
                id);

        r = fflush_and_check(f);
        if (r < 0)
                return log_error_errno(r, "Failed to write file %s: %m", p);

        from = strjoina("../", n);

        to = strjoin(arg_dest, "/", d, ".wants/", n, NULL);
        if (!to)
                return log_oom();

        mkdir_parents_label(to, 0755);
        if (symlink(from, to) < 0)
                return log_error_errno(errno, "Failed to create symlink %s: %m", to);

        free(to);
        to = strjoin(arg_dest, "/cryptsetup.target.requires/", n, NULL);
        if (!to)
                return log_oom();

        mkdir_parents_label(to, 0755);
        if (symlink(from, to) < 0)
                return log_error_errno(errno, "Failed to create symlink %s: %m", to);

        free(to);
        to = strjoin(arg_dest, "/dev-mapper-", e, ".device.requires/", n, NULL);
        if (!to)
                return log_oom();

        mkdir_parents_label(to, 0755);
        if (symlink(from, to) < 0)
                return log_error_errno(errno, "Failed to create symlink %s: %m", to);

        free(p);
        p = strjoin(arg_dest, "/dev-mapper-", e, ".device.d/50-job-timeout-sec-0.conf", NULL);
        if (!p)
                return log_oom();

        mkdir_parents_label(p, 0755);
        r = write_string_file(p,
                        "# Automatically generated by systemd-gpt-auto-generator\n\n"
                        "[Unit]\n"
                        "JobTimeoutSec=0\n",
                        WRITE_STRING_FILE_CREATE); /* the binary handles timeouts anyway */
        if (r < 0)
                return log_error_errno(r, "Failed to write device drop-in: %m");

        ret = strappend("/dev/mapper/", id);
        if (!ret)
                return log_oom();

        *device = ret;
        return 0;
}
Пример #29
0
static int add_swap(const char *what, struct mntent *me) {
        _cleanup_free_ char *name = NULL, *unit = NULL, *lnk = NULL, *device = NULL;
        _cleanup_fclose_ FILE *f = NULL;
        bool noauto, nofail;
        int r, pri = -1;

        assert(what);
        assert(me);

        r = mount_find_pri(me, &pri);
        if (r < 0) {
                log_error("Failed to parse priority");
                return pri;
        }

        noauto = !!hasmntopt(me, "noauto");
        nofail = !!hasmntopt(me, "nofail");

        name = unit_name_from_path(what, ".swap");
        if (!name)
                return log_oom();

        unit = strjoin(arg_dest, "/", name, NULL);
        if (!unit)
                return log_oom();

        f = fopen(unit, "wxe");
        if (!f) {
                if (errno == EEXIST)
                        log_error("Failed to create swap unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit);
                else
                        log_error("Failed to create unit file %s: %m", unit);
                return -errno;
        }

        fputs("# Automatically generated by systemd-fstab-generator\n\n"
              "[Unit]\n"
              "SourcePath=/etc/fstab\n"
              "DefaultDependencies=no\n"
              "Conflicts=" SPECIAL_UMOUNT_TARGET "\n"
              "Before=" SPECIAL_UMOUNT_TARGET "\n", f);

        if (!noauto && !nofail)
                fputs("Before=" SPECIAL_SWAP_TARGET "\n", f);

        fprintf(f,
                "\n"
                "[Swap]\n"
                "What=%s\n",
                what);

        if (pri >= 0)
                fprintf(f,
                        "Priority=%i\n",
                        pri);

        fflush(f);
        if (ferror(f)) {
                log_error("Failed to write unit file %s: %m", unit);
                return -errno;
        }

        if (!noauto) {
                lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET ".wants/", name, NULL);
                if (!lnk)
                        return log_oom();

                mkdir_parents_label(lnk, 0755);
                if (symlink(unit, lnk) < 0) {
                        log_error("Failed to create symlink %s: %m", lnk);
                        return -errno;
                }

                r = device_name(what, &device);
                if (r < 0)
                        return r;

                if (r > 0) {
                        free(lnk);
                        lnk = strjoin(arg_dest, "/", device, ".wants/", name, NULL);
                        if (!lnk)
                                return log_oom();

                        mkdir_parents_label(lnk, 0755);
                        if (symlink(unit, lnk) < 0) {
                                log_error("Failed to create symlink %s: %m", lnk);
                                return -errno;
                        }
                }
        }

        return 0;
}
Пример #30
0
static int add_mount(
                const char *what,
                const char *where,
                const char *fstype,
                const char *opts,
                int passno,
                bool noauto,
                bool nofail,
                bool automount,
                const char *post,
                const char *source) {

        _cleanup_free_ char
                *name = NULL, *unit = NULL, *lnk = NULL,
                *automount_name = NULL, *automount_unit = NULL,
                *filtered = NULL;
        _cleanup_fclose_ FILE *f = NULL;
        int r;

        assert(what);
        assert(where);
        assert(opts);
        assert(source);

        if (streq_ptr(fstype, "autofs"))
                return 0;

        if (!is_path(where)) {
                log_warning("Mount point %s is not a valid path, ignoring.", where);
                return 0;
        }

        if (mount_point_is_api(where) ||
            mount_point_ignore(where))
                return 0;

        if (path_equal(where, "/")) {
                /* The root disk is not an option */
                automount = false;
                noauto = false;
                nofail = false;
        }

        name = unit_name_from_path(where, ".mount");
        if (!name)
                return log_oom();

        unit = strjoin(arg_dest, "/", name, NULL);
        if (!unit)
                return log_oom();

        f = fopen(unit, "wxe");
        if (!f) {
                if (errno == EEXIST)
                        log_error("Failed to create mount unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit);
                else
                        log_error_errno(errno, "Failed to create unit file %s: %m", unit);
                return -errno;
        }

        fprintf(f,
                "# Automatically generated by systemd-fstab-generator\n\n"
                "[Unit]\n"
                "SourcePath=%s\n"
                "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n",
                source);

        if (post && !noauto && !nofail && !automount)
                fprintf(f, "Before=%s\n", post);

        if (passno != 0) {
                r = generator_write_fsck_deps(f, arg_dest, what, where, fstype);
                if (r < 0)
                        return r;
        }

        fprintf(f,
                "\n"
                "[Mount]\n"
                "What=%s\n"
                "Where=%s\n",
                what,
                where);

        if (!isempty(fstype) && !streq(fstype, "auto"))
                fprintf(f, "Type=%s\n", fstype);

        r = generator_write_timeouts(arg_dest, what, where, opts, &filtered);
        if (r < 0)
                return r;

        if (!isempty(filtered) && !streq(filtered, "defaults"))
                fprintf(f, "Options=%s\n", filtered);

        fflush(f);
        if (ferror(f))
                return log_error_errno(errno, "Failed to write unit file %s: %m", unit);

        if (!noauto && post) {
                lnk = strjoin(arg_dest, "/", post, nofail || automount ? ".wants/" : ".requires/", name, NULL);
                if (!lnk)
                        return log_oom();

                mkdir_parents_label(lnk, 0755);
                if (symlink(unit, lnk) < 0)
                        return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
        }

        if (automount) {
                automount_name = unit_name_from_path(where, ".automount");
                if (!automount_name)
                        return log_oom();

                automount_unit = strjoin(arg_dest, "/", automount_name, NULL);
                if (!automount_unit)
                        return log_oom();

                fclose(f);
                f = fopen(automount_unit, "wxe");
                if (!f)
                        return log_error_errno(errno, "Failed to create unit file %s: %m", automount_unit);

                fprintf(f,
                        "# Automatically generated by systemd-fstab-generator\n\n"
                        "[Unit]\n"
                        "SourcePath=%s\n"
                        "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n",
                        source);

                if (post)
                        fprintf(f,
                                "Before=%s\n",
                                post);

                fprintf(f,
                        "[Automount]\n"
                        "Where=%s\n",
                        where);

                fflush(f);
                if (ferror(f))
                        return log_error_errno(errno, "Failed to write unit file %s: %m", automount_unit);

                free(lnk);
                lnk = strjoin(arg_dest, "/", post, nofail ? ".wants/" : ".requires/", automount_name, NULL);
                if (!lnk)
                        return log_oom();

                mkdir_parents_label(lnk, 0755);
                if (symlink(automount_unit, lnk) < 0)
                        return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
        }

        return 0;
}