+ msg->ack++;
+ cn_netlink_send(msg, 0, GFP_KERNEL);
+
+ msg->len = sizeof(struct w1_netlink_msg) + sizeof(struct w1_netlink_cmd);
+ hdr->len = sizeof(struct w1_netlink_cmd);
+ cmd->len = 0;
+}
+
+static int w1_process_search_command(struct w1_master *dev, struct cn_msg *msg,
+ unsigned int avail)
+{
+ struct w1_netlink_msg *hdr = (struct w1_netlink_msg *)(msg + 1);
+ struct w1_netlink_cmd *cmd = (struct w1_netlink_cmd *)(hdr + 1);
+ int search_type = (cmd->cmd == W1_CMD_ALARM_SEARCH)?W1_ALARM_SEARCH:W1_SEARCH;
+
+ dev->priv = msg;
+ dev->priv_size = avail;
+
+ w1_search_devices(dev, search_type, w1_send_slave);
+
+ msg->ack = 0;
+ cn_netlink_send(msg, 0, GFP_KERNEL);
+
+ dev->priv = NULL;
+ dev->priv_size = 0;
+
+ return 0;
+}
+
+static int w1_send_read_reply(struct cn_msg *msg, struct w1_netlink_msg *hdr,
+ struct w1_netlink_cmd *cmd)
+{
+ void *data;
+ struct w1_netlink_msg *h;
+ struct w1_netlink_cmd *c;
+ struct cn_msg *cm;
+ int err;
+
+ data = kzalloc(sizeof(struct cn_msg) +
+ sizeof(struct w1_netlink_msg) +
+ sizeof(struct w1_netlink_cmd) +
+ cmd->len, GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ cm = (struct cn_msg *)(data);
+ h = (struct w1_netlink_msg *)(cm + 1);
+ c = (struct w1_netlink_cmd *)(h + 1);
+
+ memcpy(cm, msg, sizeof(struct cn_msg));
+ memcpy(h, hdr, sizeof(struct w1_netlink_msg));
+ memcpy(c, cmd, sizeof(struct w1_netlink_cmd));
+
+ cm->ack = msg->seq+1;
+ cm->len = sizeof(struct w1_netlink_msg) +
+ sizeof(struct w1_netlink_cmd) + cmd->len;
+
+ h->len = sizeof(struct w1_netlink_cmd) + cmd->len;
+
+ memcpy(c->data, cmd->data, c->len);
+
+ err = cn_netlink_send(cm, 0, GFP_KERNEL);
+
+ kfree(data);
+
+ return err;
+}
+
+static int w1_process_command_io(struct w1_master *dev, struct cn_msg *msg,
+ struct w1_netlink_msg *hdr, struct w1_netlink_cmd *cmd)
+{
+ int err = 0;
+
+ switch (cmd->cmd) {
+ case W1_CMD_TOUCH:
+ w1_touch_block(dev, cmd->data, cmd->len);
+ w1_send_read_reply(msg, hdr, cmd);
+ break;
+ case W1_CMD_READ:
+ w1_read_block(dev, cmd->data, cmd->len);
+ w1_send_read_reply(msg, hdr, cmd);
+ break;
+ case W1_CMD_WRITE:
+ w1_write_block(dev, cmd->data, cmd->len);
+ break;
+ default:
+ err = -EINVAL;
+ break;
+ }
+
+ return err;
+}
+
+static int w1_process_command_master(struct w1_master *dev, struct cn_msg *req_msg,
+ struct w1_netlink_msg *req_hdr, struct w1_netlink_cmd *req_cmd)
+{
+ int err = -EINVAL;
+ struct cn_msg *msg;
+ struct w1_netlink_msg *hdr;
+ struct w1_netlink_cmd *cmd;
+
+ msg = kzalloc(PAGE_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;