+#include <assert.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <talloc/talloc.h>
#include <log/log.h>
-#include "ui/common/discover-client.h"
+#include "discover-client.h"
#include "pb-protocol/pb-protocol.h"
struct discover_client {
return 0;
}
-struct discover_client* discover_client_init(
- const struct discover_client_ops *ops, void *cb_arg)
+void discover_client_destroy(struct discover_client *client)
{
- struct discover_client *client;
- struct sockaddr_un addr;
-
- client = talloc(NULL, struct discover_client);
- if (!client)
- return NULL;
-
- memcpy(&client->ops, ops, sizeof(client->ops));
- client->ops.cb_arg = cb_arg;
-
- client->fd = socket(AF_UNIX, SOCK_STREAM, 0);
- if (!client->fd < 0) {
- pb_log("%s: socket: %s\n", __func__, strerror(errno));
- goto out_err;
- }
-
- talloc_set_destructor(client, discover_client_destructor);
-
- client->n_devices = 0;
- client->devices = NULL;
-
- addr.sun_family = AF_UNIX;
- strcpy(addr.sun_path, PB_SOCKET_PATH);
-
- if (connect(client->fd, (struct sockaddr *)&addr, sizeof(addr))) {
- pb_log("%s: connect: %s\n", __func__, strerror(errno));
- goto out_err;
- }
-
- return client;
-
-out_err:
talloc_free(client);
- return NULL;
}
-int discover_client_get_fd(const struct discover_client *client)
+static struct device *find_device(struct discover_client *client,
+ const char *id)
{
- return client->fd;
-}
+ int i;
-void discover_client_destroy(struct discover_client *client)
-{
- talloc_free(client);
+ for (i = 0; i < client->n_devices; i++) {
+ struct device *dev = client->devices[i];
+ if (!strcmp(dev->id, id))
+ return dev;
+ }
+
+ return NULL;
}
static void device_add(struct discover_client *client, struct device *device)
client->devices[client->n_devices - 1] = device;
talloc_steal(client, device);
- client->ops.device_add(device, client->ops.cb_arg);
+ if (client->ops.device_add)
+ client->ops.device_add(device, client->ops.cb_arg);
+}
+
+static void boot_option_add(struct discover_client *client,
+ struct boot_option *opt)
+{
+ struct device *dev;
+
+ dev = find_device(client, opt->device_id);
+
+ /* we require that devices are already present before any boot options
+ * are added */
+ assert(dev);
+
+ talloc_steal(dev, opt);
+
+ if (client->ops.boot_option_add)
+ client->ops.boot_option_add(dev, opt, client->ops.cb_arg);
}
static void device_remove(struct discover_client *client, const char *id)
/* remove the device from the client's device array */
client->n_devices--;
memmove(&client->devices[i], &client->devices[i+1],
- client->n_devices - i);
+ (client->n_devices - i) * sizeof(client->devices[0]));
client->devices = talloc_realloc(client, client->devices,
struct device *, client->n_devices);
talloc_free(device);
}
-int discover_client_process(struct discover_client *client)
+static void update_status(struct discover_client *client,
+ struct boot_status *status)
{
+ if (client->ops.update_status)
+ client->ops.update_status(status, client->ops.cb_arg);
+}
+
+static void update_sysinfo(struct discover_client *client,
+ struct system_info *sysinfo)
+{
+ if (client->ops.update_sysinfo)
+ client->ops.update_sysinfo(sysinfo, client->ops.cb_arg);
+}
+
+static void update_config(struct discover_client *client,
+ struct config *config)
+{
+ if (client->ops.update_config)
+ client->ops.update_config(config, client->ops.cb_arg);
+}
+
+static int discover_client_process(void *arg)
+{
+ struct discover_client *client = arg;
struct pb_protocol_message *message;
+ struct system_info *sysinfo;
+ struct boot_status *status;
+ struct boot_option *opt;
+ struct config *config;
struct device *dev;
char *dev_id;
+ void *ctx;
+ int rc;
- message = pb_protocol_read_message(client, client->fd);
+ /* We use a temporary context for processing one message; persistent
+ * data is re-parented to the client in the callbacks. */
+ ctx = talloc_new(client);
+
+ message = pb_protocol_read_message(ctx, client->fd);
if (!message)
return -1;
switch (message->action) {
- case PB_PROTOCOL_ACTION_ADD:
- dev = pb_protocol_deserialise_device(client, message);
- if (!dev) {
+ case PB_PROTOCOL_ACTION_DEVICE_ADD:
+ dev = talloc_zero(ctx, struct device);
+ list_init(&dev->boot_options);
+
+ rc = pb_protocol_deserialise_device(dev, message);
+ if (rc) {
pb_log("%s: no device?\n", __func__);
return 0;
}
device_add(client, dev);
break;
- case PB_PROTOCOL_ACTION_REMOVE:
- dev_id = pb_protocol_deserialise_string(client, message);
+ case PB_PROTOCOL_ACTION_BOOT_OPTION_ADD:
+ opt = talloc_zero(ctx, struct boot_option);
+
+ rc = pb_protocol_deserialise_boot_option(opt, message);
+ if (rc) {
+ pb_log("%s: no boot_option?\n", __func__);
+ return 0;
+ }
+
+ boot_option_add(client, opt);
+ break;
+ case PB_PROTOCOL_ACTION_DEVICE_REMOVE:
+ dev_id = pb_protocol_deserialise_string(ctx, message);
if (!dev_id) {
pb_log("%s: no device id?\n", __func__);
return 0;
}
device_remove(client, dev_id);
break;
+ case PB_PROTOCOL_ACTION_STATUS:
+ status = talloc_zero(ctx, struct boot_status);
+
+ rc = pb_protocol_deserialise_boot_status(status, message);
+ if (rc) {
+ pb_log("%s: invalid status message?\n", __func__);
+ return 0;
+ }
+ update_status(client, status);
+ break;
+ case PB_PROTOCOL_ACTION_SYSTEM_INFO:
+ sysinfo = talloc_zero(ctx, struct system_info);
+
+ rc = pb_protocol_deserialise_system_info(sysinfo, message);
+ if (rc) {
+ pb_log("%s: invalid sysinfo message?\n", __func__);
+ return 0;
+ }
+ update_sysinfo(client, sysinfo);
+ break;
+ case PB_PROTOCOL_ACTION_CONFIG:
+ config = talloc_zero(ctx, struct config);
+
+ rc = pb_protocol_deserialise_config(config, message);
+ if (rc) {
+ pb_log("%s: invalid config message?\n", __func__);
+ return 0;
+ }
+ update_config(client, config);
+ break;
default:
pb_log("%s: unknown action %d\n", __func__, message->action);
}
+ talloc_free(ctx);
return 0;
}
+struct discover_client* discover_client_init(struct waitset *waitset,
+ const struct discover_client_ops *ops, void *cb_arg)
+{
+ struct discover_client *client;
+ struct sockaddr_un addr;
+
+ client = talloc(NULL, struct discover_client);
+ if (!client)
+ return NULL;
+
+ memcpy(&client->ops, ops, sizeof(client->ops));
+ client->ops.cb_arg = cb_arg;
+
+ client->fd = socket(AF_UNIX, SOCK_STREAM, 0);
+ if (client->fd < 0) {
+ pb_log("%s: socket: %s\n", __func__, strerror(errno));
+ goto out_err;
+ }
+
+ talloc_set_destructor(client, discover_client_destructor);
+
+ client->n_devices = 0;
+ client->devices = NULL;
+
+ addr.sun_family = AF_UNIX;
+ strcpy(addr.sun_path, PB_SOCKET_PATH);
+
+ if (connect(client->fd, (struct sockaddr *)&addr, sizeof(addr))) {
+ pb_log("%s: connect: %s\n", __func__, strerror(errno));
+ goto out_err;
+ }
+
+ waiter_register_io(waitset, client->fd, WAIT_IN,
+ discover_client_process, client);
+
+ return client;
+
+out_err:
+ talloc_free(client);
+ return NULL;
+}
+
/* accessors for discovered devices */
int discover_client_device_count(struct discover_client *client)
{
return client->devices[index];
}
+
+static void create_boot_command(struct boot_command *command,
+ const struct device *device __attribute__((unused)),
+ const struct boot_option *boot_option,
+ const struct pb_boot_data *data)
+{
+ command->option_id = boot_option ? boot_option->id : NULL;
+ command->boot_image_file = data->image;
+ command->initrd_file = data->initrd;
+ command->dtb_file = data->dtb;
+ command->boot_args = data->args;
+}
+
+int discover_client_boot(struct discover_client *client,
+ const struct device *device,
+ const struct boot_option *boot_option,
+ const struct pb_boot_data *data)
+{
+ struct pb_protocol_message *message;
+ struct boot_command boot_command;
+ int len, rc;
+
+ create_boot_command(&boot_command, device, boot_option, data);
+
+ len = pb_protocol_boot_len(&boot_command);
+
+ message = pb_protocol_create_message(client,
+ PB_PROTOCOL_ACTION_BOOT, len);
+
+ if (!message)
+ return -1;
+
+ pb_protocol_serialise_boot_command(&boot_command,
+ message->payload, len);
+
+ rc = pb_protocol_write_message(client->fd, message);
+
+ return rc;
+}
+
+int discover_client_cancel_default(struct discover_client *client)
+{
+ struct pb_protocol_message *message;
+
+ message = pb_protocol_create_message(client,
+ PB_PROTOCOL_ACTION_CANCEL_DEFAULT, 0);
+
+ if (!message)
+ return -1;
+
+ return pb_protocol_write_message(client->fd, message);
+}
+
+int discover_client_send_reinit(struct discover_client *client)
+{
+ struct pb_protocol_message *message;
+
+ message = pb_protocol_create_message(client,
+ PB_PROTOCOL_ACTION_REINIT, 0);
+
+ if (!message)
+ return -1;
+
+ return pb_protocol_write_message(client->fd, message);
+}
+
+int discover_client_send_config(struct discover_client *client,
+ struct config *config)
+{
+ struct pb_protocol_message *message;
+ int len;
+
+ len = pb_protocol_config_len(config);
+
+ message = pb_protocol_create_message(client,
+ PB_PROTOCOL_ACTION_CONFIG, len);
+ if (!message)
+ return -1;
+
+ pb_protocol_serialise_config(config, message->payload, len);
+
+ return pb_protocol_write_message(client->fd, message);
+}