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Diffstat (limited to 'src/machine/image-dbus.c')
| -rw-r--r-- | src/machine/image-dbus.c | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/src/machine/image-dbus.c b/src/machine/image-dbus.c new file mode 100644 index 0000000000..afb849b41a --- /dev/null +++ b/src/machine/image-dbus.c @@ -0,0 +1,234 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +/*** + This file is part of systemd. + + Copyright 2014 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include "bus-label.h" +#include "bus-common-errors.h" +#include "strv.h" +#include "image.h" + +static int image_find_by_bus_path(const char *path, Image **ret) { + _cleanup_free_ char *e = NULL; + const char *p; + + assert(path); + + p = startswith(path, "/org/freedesktop/machine1/image/"); + if (!p) + return 0; + + e = bus_label_unescape(p); + if (!e) + return -ENOMEM; + + return image_find(e, ret); +} + +static int image_find_by_bus_path_with_error(const char *path, Image **ret, sd_bus_error *error) { + int r; + + assert(path); + + r = image_find_by_bus_path(path, ret); + if (r == 0) + return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "Image doesn't exist."); + + return r; +} + +static int property_get_name( + sd_bus *bus, + const char *path, + const char *interface, + const char *property, + sd_bus_message *reply, + void *userdata, + sd_bus_error *error) { + + _cleanup_(image_unrefp) Image *image = NULL; + int r; + + assert(bus); + assert(reply); + + r = image_find_by_bus_path_with_error(path, &image, error); + if (r < 0) + return r; + + r = sd_bus_message_append(reply, "s", image->name); + if (r < 0) + return r; + + return 1; +} + +static int property_get_path( + sd_bus *bus, + const char *path, + const char *interface, + const char *property, + sd_bus_message *reply, + void *userdata, + sd_bus_error *error) { + + _cleanup_(image_unrefp) Image *image = NULL; + int r; + + assert(bus); + assert(reply); + + r = image_find_by_bus_path_with_error(path, &image, error); + if (r < 0) + return r; + + r = sd_bus_message_append(reply, "s", image->path); + if (r < 0) + return r; + + return 1; +} + +static int property_get_type( + sd_bus *bus, + const char *path, + const char *interface, + const char *property, + sd_bus_message *reply, + void *userdata, + sd_bus_error *error) { + + + _cleanup_(image_unrefp) Image *image = NULL; + int r; + + assert(bus); + assert(reply); + + r = image_find_by_bus_path_with_error(path, &image, error); + if (r < 0) + return r; + + r = sd_bus_message_append(reply, "s", image_type_to_string(image->type)); + if (r < 0) + return r; + + return 1; +} + +static int property_get_read_only( + sd_bus *bus, + const char *path, + const char *interface, + const char *property, + sd_bus_message *reply, + void *userdata, + sd_bus_error *error) { + + + _cleanup_(image_unrefp) Image *image = NULL; + int r; + + assert(bus); + assert(reply); + + r = image_find_by_bus_path_with_error(path, &image, error); + if (r < 0) + return r; + + r = sd_bus_message_append(reply, "b", image->read_only); + if (r < 0) + return r; + + return 1; +} + +const sd_bus_vtable image_vtable[] = { + SD_BUS_VTABLE_START(0), + SD_BUS_PROPERTY("Name", "s", property_get_name, 0, 0), + SD_BUS_PROPERTY("Path", "s", property_get_path, 0, 0), + SD_BUS_PROPERTY("Type", "s", property_get_type, 0, 0), + SD_BUS_PROPERTY("ReadOnly", "b", property_get_read_only, 0, 0), + SD_BUS_VTABLE_END +}; + +int image_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { + int r; + + assert(bus); + assert(path); + assert(interface); + assert(found); + + r = image_find_by_bus_path(path, NULL); + if (r <= 0) + return r; + + *found = NULL; + return 1; +} + +char *image_bus_path(const char *name) { + _cleanup_free_ char *e = NULL; + + assert(name); + + e = bus_label_escape(name); + if (!e) + return NULL; + + return strappend("/org/freedesktop/machine1/image/", e); +} + +int image_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { + _cleanup_(image_hashmap_freep) Hashmap *images = NULL; + _cleanup_strv_free_ char **l = NULL; + Image *image; + Iterator i; + int r; + + assert(bus); + assert(path); + assert(nodes); + + images = hashmap_new(&string_hash_ops); + if (!images) + return -ENOMEM; + + r = image_discover(images); + if (r < 0) + return r; + + HASHMAP_FOREACH(image, images, i) { + char *p; + + p = image_bus_path(image->name); + if (!p) + return -ENOMEM; + + r = strv_consume(&l, p); + if (r < 0) + return r; + } + + *nodes = l; + l = NULL; + + return 1; +} |