9 #include <sys/socket.h>
11 #include <asm/byteorder.h>
13 #include <talloc/talloc.h>
15 #include "ui/common/device.h"
16 #include "pb-protocol/pb-protocol.h"
17 #include "list/list.h"
22 struct discover_server {
24 struct waiter *waiter;
29 struct list_item list;
34 static int server_destructor(void *arg)
36 struct discover_server *server = arg;
39 waiter_unregister(server->waiter);
41 if (server->socket >= 0)
42 close(server->socket);
47 static int client_destructor(void *arg)
49 struct client *client = arg;
54 list_remove(&client->list);
60 static void print_clients(struct discover_server *server)
61 __attribute__((unused));
63 static void print_clients(struct discover_server *server)
65 struct client *client;
67 printf("current clients [%p,%p,%p]:\n",
68 &server->clients.head,
69 server->clients.head.prev,
70 server->clients.head.next);
71 list_for_each_entry(&server->clients, client, list)
72 printf("\t[%p,%p,%p] client: %d\n", &client->list,
73 client->list.prev, client->list.next,
77 static struct boot_option options[] = {
81 .description = "meep description one",
82 .icon_file = "meep.one.png",
83 .boot_args = "root=/dev/sda1",
87 static struct device device = {
90 .description = "meep description",
91 .icon_file = "meep.png",
96 static int client_write_message(struct discover_server *server,
97 struct client *client, struct pb_protocol_message *message)
101 rc = pb_protocol_write_message(client->fd, message);
108 static int write_add_message(struct discover_server *server,
109 struct client *client, struct device *dev)
111 struct pb_protocol_message *message;
114 len = pb_protocol_device_len(dev);
116 message = pb_protocol_create_message(client,
117 PB_PROTOCOL_ACTION_ADD, len);
121 pb_protocol_serialise_device(dev, message->payload, len);
123 return client_write_message(server, client, message);
126 static int write_remove_message(struct discover_server *server,
127 struct client *client, char *dev_id)
129 struct pb_protocol_message *message;
132 len = strlen(dev_id) + sizeof(uint32_t);
134 message = pb_protocol_create_message(client,
135 PB_PROTOCOL_ACTION_REMOVE, len);
139 pb_protocol_serialise_string(message->payload, dev_id);
141 return client_write_message(server, client, message);
144 static int discover_server_process(void *arg)
146 struct discover_server *server = arg;
147 struct client *client;
153 /* accept the incoming connection */
154 fd = accept(server->socket, NULL, 0);
156 pb_log("accept: %s\n", strerror(errno));
160 /* add to our list of clients */
161 client = talloc(server, struct client);
162 list_add(&server->clients, &client->list);
164 talloc_set_destructor(client, client_destructor);
168 /* send existing devices to client */
169 write_add_message(server, client, &device);
173 write_remove_message(server, client, "1");
178 struct discover_server *discover_server_init(void)
180 struct discover_server *server;
181 struct sockaddr_un addr;
183 server = talloc(NULL, struct discover_server);
187 server->waiter = NULL;
188 list_init(&server->clients);
190 unlink(PB_SOCKET_PATH);
192 server->socket = socket(AF_UNIX, SOCK_STREAM, 0);
193 if (server->socket < 0) {
194 pb_log("error creating server socket: %s\n", strerror(errno));
198 talloc_set_destructor(server, server_destructor);
200 addr.sun_family = AF_UNIX;
201 strcpy(addr.sun_path, PB_SOCKET_PATH);
203 if (bind(server->socket, (struct sockaddr *)&addr, sizeof(addr))) {
204 pb_log("error binding server socket: %s\n", strerror(errno));
208 if (listen(server->socket, 8)) {
209 pb_log("server socket listen: %s\n", strerror(errno));
213 server->waiter = waiter_register(server->socket, WAIT_IN,
214 discover_server_process, server);
223 void discover_server_destroy(struct discover_server *server)