GNUnet 0.21.1
gnunet-service-messenger_service.c File Reference
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Data Structures

struct  HandleInitializationClosure
 

Functions

static void callback_shutdown_service (void *cls)
 
struct GNUNET_MESSENGER_Servicecreate_service (const struct GNUNET_CONFIGURATION_Handle *config, struct GNUNET_SERVICE_Handle *service_handle)
 Creates and allocates a new service using a given config and a GNUnet service handle. More...
 
static enum GNUNET_GenericReturnValue iterate_destroy_rooms (void *cls, const struct GNUNET_HashCode *key, void *value)
 
void destroy_service (struct GNUNET_MESSENGER_Service *service)
 Destroys a service and frees its memory fully. More...
 
struct GNUNET_MESSENGER_ContactStoreget_service_contact_store (struct GNUNET_MESSENGER_Service *service)
 Returns the used contact store of a given service. More...
 
struct GNUNET_MESSENGER_SrvHandleadd_service_handle (struct GNUNET_MESSENGER_Service *service, struct GNUNET_MQ_Handle *mq)
 Creates and adds a new handle to a service using a given message queue. More...
 
void remove_service_handle (struct GNUNET_MESSENGER_Service *service, struct GNUNET_MESSENGER_SrvHandle *handle)
 Removes a handle from a service and destroys it. More...
 
enum GNUNET_GenericReturnValue get_service_peer_identity (struct GNUNET_MESSENGER_Service *service, struct GNUNET_PeerIdentity *peer)
 Tries to write the peer identity of the peer running a service on to the peer parameter. More...
 
struct GNUNET_MESSENGER_SrvRoomget_service_room (const struct GNUNET_MESSENGER_Service *service, const struct GNUNET_HashCode *key)
 Returns the room identified by a given key for a service. More...
 
static enum GNUNET_GenericReturnValue find_member_session_in_room (void *cls, const struct GNUNET_CRYPTO_PublicKey *public_key, struct GNUNET_MESSENGER_MemberSession *session)
 
static void initialize_service_handle (struct GNUNET_MESSENGER_SrvHandle *handle, struct GNUNET_MESSENGER_SrvRoom *room)
 
enum GNUNET_GenericReturnValue open_service_room (struct GNUNET_MESSENGER_Service *service, struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_HashCode *key)
 Tries to open a room using a given key for a service by a specific handle. More...
 
enum GNUNET_GenericReturnValue entry_service_room (struct GNUNET_MESSENGER_Service *service, struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_PeerIdentity *door, const struct GNUNET_HashCode *key)
 Tries to enter a room using a given key for a service by a specific handle. More...
 
enum GNUNET_GenericReturnValue close_service_room (struct GNUNET_MESSENGER_Service *service, struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_HashCode *key, enum GNUNET_GenericReturnValue deletion)
 Tries to close a room using a given key for a service by a specific handle. More...
 
void handle_service_message (struct GNUNET_MESSENGER_Service *service, struct GNUNET_MESSENGER_SrvRoom *room, const struct GNUNET_MESSENGER_SenderSession *session, const struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash)
 Sends a received or sent message with a given hash to each handle of a service which is currently member of a specific room for handling it in the client API. More...
 

Function Documentation

◆ callback_shutdown_service()

static void callback_shutdown_service ( void *  cls)
static

Definition at line 35 of file gnunet-service-messenger_service.c.

36{
38
39 if (service)
40 {
41 service->shutdown = NULL;
42
44 }
45}
static struct GNUNET_SERVICE_Handle * service
Handle to our service instance.
void destroy_service(struct GNUNET_MESSENGER_Service *service)
Destroys a service and frees its memory fully.

References destroy_service(), and service.

Referenced by create_service().

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◆ create_service()

struct GNUNET_MESSENGER_Service * create_service ( const struct GNUNET_CONFIGURATION_Handle config,
struct GNUNET_SERVICE_Handle service_handle 
)

Creates and allocates a new service using a given config and a GNUnet service handle.

Parameters
[in]configConfiguration
[in,out]service_handleGNUnet service handle
Returns
New service

Definition at line 49 of file gnunet-service-messenger_service.c.

51{
52 GNUNET_assert ((config) && (service_handle));
53
56
57 service->config = config;
58 service->service = service_handle;
59
61 service);
62
63 service->peer = NULL;
64 service->dir = NULL;
65
68 "MESSENGER_DIR",
69 &(service->dir)))
70 {
71 if (service->dir)
72 GNUNET_free (service->dir);
73
74 service->dir = NULL;
75 }
76 else
77 {
80 !=
82 {
83 GNUNET_free (service->dir);
84
85 service->dir = NULL;
86 }
87 }
88
90 service->config,
92 "MESSENGER_AUTO_CONNECTING");
93
96 "MESSENGER_AUTO_ROUTING");
97
100 "MESSENGER_MIN_ROUTERS",
101 &(service->min_routers)))
102 service->min_routers = 0;
103
104 service->cadet = GNUNET_CADET_connect (service->config);
105
106 init_list_handles (&(service->handles));
107
109
111
112 return service;
113}
const struct GNUNET_CONFIGURATION_Handle * config
void init_list_handles(struct GNUNET_MESSENGER_ListHandles *handles)
Initializes list of handles as empty list.
struct GNUNET_MESSENGER_ContactStore * get_service_contact_store(struct GNUNET_MESSENGER_Service *service)
Returns the used contact store of a given service.
static void callback_shutdown_service(void *cls)
struct GNUNET_CADET_Handle * GNUNET_CADET_connect(const struct GNUNET_CONFIGURATION_Handle *cfg)
Connect to the MQ-based cadet service.
Definition: cadet_api.c:894
enum GNUNET_GenericReturnValue GNUNET_CONFIGURATION_get_value_filename(const struct GNUNET_CONFIGURATION_Handle *cfg, const char *section, const char *option, char **value)
Get a configuration value that should be the name of a file or directory.
enum GNUNET_GenericReturnValue GNUNET_CONFIGURATION_get_value_number(const struct GNUNET_CONFIGURATION_Handle *cfg, const char *section, const char *option, unsigned long long *number)
Get a configuration value that should be a number.
enum GNUNET_GenericReturnValue GNUNET_CONFIGURATION_get_value_yesno(const struct GNUNET_CONFIGURATION_Handle *cfg, const char *section, const char *option)
Get a configuration value that should be in a set of "YES" or "NO".
enum GNUNET_GenericReturnValue GNUNET_DISK_directory_test(const char *fil, int is_readable)
Test if fil is a directory and listable.
Definition: disk.c:403
enum GNUNET_GenericReturnValue GNUNET_DISK_directory_create(const char *dir)
Implementation of "mkdir -p".
Definition: disk.c:496
struct GNUNET_CONTAINER_MultiHashMap * GNUNET_CONTAINER_multihashmap_create(unsigned int len, int do_not_copy_keys)
Create a multi hash map.
@ GNUNET_OK
@ GNUNET_YES
@ GNUNET_NO
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define GNUNET_new(type)
Allocate a struct or union of the given type.
#define GNUNET_free(ptr)
Wrapper around free.
#define GNUNET_MESSENGER_SERVICE_NAME
Identifier of GNUnet MESSENGER Service.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_shutdown(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run on shutdown, that is when a CTRL-C signal is received,...
Definition: scheduler.c:1340
void init_contact_store(struct GNUNET_MESSENGER_ContactStore *store)
Initializes a contact store as fully empty.

References callback_shutdown_service(), config, get_service_contact_store(), GNUNET_assert, GNUNET_CADET_connect(), GNUNET_CONFIGURATION_get_value_filename(), GNUNET_CONFIGURATION_get_value_number(), GNUNET_CONFIGURATION_get_value_yesno(), GNUNET_CONTAINER_multihashmap_create(), GNUNET_DISK_directory_create(), GNUNET_DISK_directory_test(), GNUNET_free, GNUNET_MESSENGER_SERVICE_NAME, GNUNET_new, GNUNET_NO, GNUNET_OK, GNUNET_SCHEDULER_add_shutdown(), GNUNET_YES, init_contact_store(), init_list_handles(), and service.

Referenced by run().

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◆ iterate_destroy_rooms()

static enum GNUNET_GenericReturnValue iterate_destroy_rooms ( void *  cls,
const struct GNUNET_HashCode key,
void *  value 
)
static

Definition at line 117 of file gnunet-service-messenger_service.c.

120{
121 struct GNUNET_MESSENGER_SrvRoom *room = value;
123 return GNUNET_YES;
124}
static char * value
Value of the record to add/remove.
void destroy_srv_room(struct GNUNET_MESSENGER_SrvRoom *room, enum GNUNET_GenericReturnValue deletion)
Destroys a room and frees its memory fully.

References destroy_srv_room(), GNUNET_NO, GNUNET_YES, and value.

Referenced by destroy_service().

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◆ destroy_service()

void destroy_service ( struct GNUNET_MESSENGER_Service service)

Destroys a service and frees its memory fully.

Parameters
[in,out]serviceService

Definition at line 128 of file gnunet-service-messenger_service.c.

129{
131
132 if (service->shutdown)
133 {
135
136 service->shutdown = NULL;
137 }
138
139 clear_list_handles (&(service->handles));
140
142 NULL);
144
146
147 if (service->cadet)
148 {
150
151 service->cadet = NULL;
152 }
153
154 if (service->dir)
155 {
156 GNUNET_free (service->dir);
157
158 service->dir = NULL;
159 }
160
161 if (service->peer)
162 {
163 GNUNET_free (service->peer);
164
165 service->peer = NULL;
166 }
167
169
171}
void clear_list_handles(struct GNUNET_MESSENGER_ListHandles *handles)
Destroys remaining handles and clears the list.
static enum GNUNET_GenericReturnValue iterate_destroy_rooms(void *cls, const struct GNUNET_HashCode *key, void *value)
void GNUNET_CADET_disconnect(struct GNUNET_CADET_Handle *handle)
Disconnect from the cadet service.
Definition: cadet_api.c:774
int GNUNET_CONTAINER_multihashmap_iterate(struct GNUNET_CONTAINER_MultiHashMap *map, GNUNET_CONTAINER_MultiHashMapIteratorCallback it, void *it_cls)
Iterate over all entries in the map.
void GNUNET_CONTAINER_multihashmap_destroy(struct GNUNET_CONTAINER_MultiHashMap *map)
Destroy a hash map.
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:981
void GNUNET_SERVICE_shutdown(struct GNUNET_SERVICE_Handle *sh)
Explicitly stops the service.
Definition: service.c:2548
void clear_contact_store(struct GNUNET_MESSENGER_ContactStore *store)
Clears a contact store, wipes its content and deallocates its memory.

References clear_contact_store(), clear_list_handles(), get_service_contact_store(), GNUNET_assert, GNUNET_CADET_disconnect(), GNUNET_CONTAINER_multihashmap_destroy(), GNUNET_CONTAINER_multihashmap_iterate(), GNUNET_free, GNUNET_SCHEDULER_cancel(), GNUNET_SERVICE_shutdown(), iterate_destroy_rooms(), and service.

Referenced by callback_shutdown_service().

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◆ get_service_contact_store()

struct GNUNET_MESSENGER_ContactStore * get_service_contact_store ( struct GNUNET_MESSENGER_Service service)

Returns the used contact store of a given service.

Parameters
[in,out]serviceService
Returns
Contact store

Definition at line 175 of file gnunet-service-messenger_service.c.

176{
178
179 return &(service->contact_store);
180}

References GNUNET_assert, and service.

Referenced by create_service(), destroy_service(), and get_member_contact_store().

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◆ add_service_handle()

struct GNUNET_MESSENGER_SrvHandle * add_service_handle ( struct GNUNET_MESSENGER_Service service,
struct GNUNET_MQ_Handle mq 
)

Creates and adds a new handle to a service using a given message queue.

Parameters
[in,out]serviceService
[in,out]mqMessage queue
Returns
New handle

Definition at line 184 of file gnunet-service-messenger_service.c.

186{
187 GNUNET_assert ((service) && (mq));
188
190
191 if (handle)
192 {
193 add_list_handle (&(service->handles), handle);
194 }
195
196 return handle;
197}
struct GNUNET_MQ_Handle * mq
Definition: 003.c:5
struct GNUNET_MESSENGER_SrvHandle * create_srv_handle(struct GNUNET_MESSENGER_Service *service, struct GNUNET_MQ_Handle *mq)
Creates and allocates a new handle related to a service and using a given mq (message queue).
void add_list_handle(struct GNUNET_MESSENGER_ListHandles *handles, struct GNUNET_MESSENGER_SrvHandle *handle)
Adds a specific handle to the end of the list.
static struct GNUNET_VPN_Handle * handle
Handle to vpn service.
Definition: gnunet-vpn.c:35

References add_list_handle(), create_srv_handle(), GNUNET_assert, handle, mq, and service.

Referenced by callback_client_connect().

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◆ remove_service_handle()

void remove_service_handle ( struct GNUNET_MESSENGER_Service service,
struct GNUNET_MESSENGER_SrvHandle handle 
)

Removes a handle from a service and destroys it.

Parameters
[in,out]serviceService
[in,out]handleHandle

Definition at line 201 of file gnunet-service-messenger_service.c.

203{
205
206 if (! handle)
207 return;
208
209 if (GNUNET_YES == remove_list_handle (&(service->handles), handle))
211}
void destroy_srv_handle(struct GNUNET_MESSENGER_SrvHandle *handle)
Destroys a handle and frees its memory fully.
enum GNUNET_GenericReturnValue remove_list_handle(struct GNUNET_MESSENGER_ListHandles *handles, struct GNUNET_MESSENGER_SrvHandle *handle)
Removes the first entry matching with a specific handle from the list of handles and returns GNUNET_Y...

References destroy_srv_handle(), GNUNET_assert, GNUNET_YES, handle, remove_list_handle(), and service.

Referenced by callback_client_disconnect().

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◆ get_service_peer_identity()

enum GNUNET_GenericReturnValue get_service_peer_identity ( struct GNUNET_MESSENGER_Service service,
struct GNUNET_PeerIdentity peer 
)

Tries to write the peer identity of the peer running a service on to the peer parameter.

The functions returns GNUNET_OK on success, otherwise GNUNET_SYSERR.

Parameters
[in,out]serviceService
[out]peerPeer identity
Returns
GNUNET_OK on success, otherwise GNUNET_SYSERR

Definition at line 215 of file gnunet-service-messenger_service.c.

217{
218 GNUNET_assert ((service) && (peer));
219
220 if (service->peer)
221 {
222 GNUNET_memcpy (peer, service->peer, sizeof(struct GNUNET_PeerIdentity));
223 return GNUNET_OK;
224 }
225
228
229 if (GNUNET_OK != result)
230 return result;
231
232 if (! service->peer)
233 service->peer = GNUNET_new (struct GNUNET_PeerIdentity);
234
235 GNUNET_memcpy (service->peer, peer, sizeof(struct GNUNET_PeerIdentity));
236 return result;
237}
static int result
Global testing status.
enum GNUNET_GenericReturnValue GNUNET_CRYPTO_get_peer_identity(const struct GNUNET_CONFIGURATION_Handle *cfg, struct GNUNET_PeerIdentity *dst)
Retrieve the identity of the host's peer.
#define GNUNET_memcpy(dst, src, n)
Call memcpy() but check for n being 0 first.
GNUNET_GenericReturnValue
Named constants for return values.
The identity of the host (wraps the signing key of the peer).

References GNUNET_assert, GNUNET_CRYPTO_get_peer_identity(), GNUNET_memcpy, GNUNET_new, GNUNET_OK, result, and service.

Referenced by close_srv_room(), create_message_peer(), enter_srv_room_at(), get_store_service_peer_identity(), pack_srv_room_message(), and rebuild_srv_room_basement_structure().

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◆ get_service_room()

struct GNUNET_MESSENGER_SrvRoom * get_service_room ( const struct GNUNET_MESSENGER_Service service,
const struct GNUNET_HashCode key 
)

Returns the room identified by a given key for a service.

If the service doesn't know any room using the given key, NULL gets returned.

Parameters
[in]serviceService
[in]keyKey of room
Returns
Room or NULL

Definition at line 241 of file gnunet-service-messenger_service.c.

243{
244 GNUNET_assert ((service) && (key));
245
247}
struct GNUNET_HashCode key
The key used in the DHT.
void * GNUNET_CONTAINER_multihashmap_get(const struct GNUNET_CONTAINER_MultiHashMap *map, const struct GNUNET_HashCode *key)
Given a key find a value in the map matching the key.

References GNUNET_assert, GNUNET_CONTAINER_multihashmap_get(), key, and service.

Referenced by close_service_room(), entry_service_room(), handle_get_message(), open_service_room(), send_srv_handle_message(), and sync_srv_handle_messages().

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◆ find_member_session_in_room()

static enum GNUNET_GenericReturnValue find_member_session_in_room ( void *  cls,
const struct GNUNET_CRYPTO_PublicKey public_key,
struct GNUNET_MESSENGER_MemberSession session 
)
static

Definition at line 258 of file gnunet-service-messenger_service.c.

261{
262 struct HandleInitializationClosure *init = cls;
263
264 if (! public_key)
265 return GNUNET_YES;
266
268 init->handle);
269
270 if (0 != GNUNET_memcmp (pubkey, public_key))
271 return GNUNET_YES;
272
273 const struct GNUNET_ShortHashCode *id = get_member_session_id (session);
274
275 if (! id)
276 {
277 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Initialitation: Missing member id!");
278 return GNUNET_NO;
279 }
280
282 "Initialitation: Matching member found (%s)!\n",
283 GNUNET_sh2s (id));
284
286 return GNUNET_NO;
287}
static char * init
Set to the name of a service to start.
Definition: gnunet-arm.c:74
static struct GNUNET_CRYPTO_PublicKey pubkey
Public key of the zone to look in.
enum GNUNET_GenericReturnValue change_srv_handle_member_id(struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_HashCode *key, const struct GNUNET_ShortHashCode *unique_id)
Changes the member id of a given handle in a specific room to match a unique_id and returns GNUNET_OK...
const struct GNUNET_CRYPTO_PublicKey * get_srv_handle_key(const struct GNUNET_MESSENGER_SrvHandle *handle)
Returns the public key of a given handle.
const struct GNUNET_ShortHashCode * get_member_session_id(const struct GNUNET_MESSENGER_MemberSession *session)
Returns the member id of a given member session.
const struct GNUNET_HashCode * get_srv_room_key(const struct GNUNET_MESSENGER_SrvRoom *room)
Returns the shared secret you need to access a room.
#define GNUNET_log(kind,...)
#define GNUNET_memcmp(a, b)
Compare memory in a and b, where both must be of the same pointer type.
const char * GNUNET_sh2s(const struct GNUNET_ShortHashCode *shc)
Convert a short hash value to a string (for printing debug messages).
@ GNUNET_ERROR_TYPE_DEBUG
@ GNUNET_ERROR_TYPE_INFO
An identity key as per LSD0001.
A 256-bit hashcode.

References change_srv_handle_member_id(), get_member_session_id(), get_srv_handle_key(), get_srv_room_key(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_ERROR_TYPE_INFO, GNUNET_log, GNUNET_memcmp, GNUNET_NO, GNUNET_sh2s(), GNUNET_YES, init, and pubkey.

Referenced by initialize_service_handle().

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◆ initialize_service_handle()

static void initialize_service_handle ( struct GNUNET_MESSENGER_SrvHandle handle,
struct GNUNET_MESSENGER_SrvRoom room 
)
static

Definition at line 291 of file gnunet-service-messenger_service.c.

293{
294 GNUNET_assert ((handle) && (room));
295
297 if (! store)
298 return;
299
301 if ((! pubkey) || (0 == GNUNET_memcmp (pubkey, get_anonymous_public_key ())))
302 return;
303
305 "Initialize member id of handle via matching member in room!\n");
306
308 init.handle = handle;
309 init.room = room;
310 init.pubkey = pubkey;
311
313}
int iterate_store_members(struct GNUNET_MESSENGER_MemberStore *store, GNUNET_MESSENGER_MemberIteratorCallback it, void *cls)
Iterate through all member sessions currently connected to the members of the given member store and ...
struct GNUNET_MESSENGER_MemberStore * get_srv_room_member_store(struct GNUNET_MESSENGER_SrvRoom *room)
Returns the used member store of a given room.
static enum GNUNET_GenericReturnValue find_member_session_in_room(void *cls, const struct GNUNET_CRYPTO_PublicKey *public_key, struct GNUNET_MESSENGER_MemberSession *session)
const struct GNUNET_CRYPTO_PublicKey * get_anonymous_public_key()
Returns the public identity key of GNUNET_IDENTITY_ego_get_anonymous() without recalculating it every...
struct GNUNET_MESSENGER_SrvRoom * room

References find_member_session_in_room(), get_anonymous_public_key(), get_srv_handle_key(), get_srv_room_member_store(), GNUNET_assert, GNUNET_ERROR_TYPE_DEBUG, GNUNET_log, GNUNET_memcmp, handle, init, iterate_store_members(), pubkey, GNUNET_MESSENGER_MemberStore::room, and HandleInitializationClosure::room.

Referenced by entry_service_room(), and open_service_room().

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◆ open_service_room()

enum GNUNET_GenericReturnValue open_service_room ( struct GNUNET_MESSENGER_Service service,
struct GNUNET_MESSENGER_SrvHandle handle,
const struct GNUNET_HashCode key 
)

Tries to open a room using a given key for a service by a specific handle.

The room will be created if necessary. If the function is successful, it returns GNUNET_YES, otherwise GNUNET_NO.

Parameters
[in,out]serviceService
[in,out]handleHandle
[in]keyKey of room
Returns
GNUNET_YES on success, otherwise GNUNET_NO

Definition at line 317 of file gnunet-service-messenger_service.c.

320{
321 GNUNET_assert ((service) && (handle) && (key));
322
324
325 if (room)
326 {
328 return open_srv_room (room, handle);
329 }
330
331 room = create_srv_room (handle, key);
333
334 if ((GNUNET_YES == open_srv_room (room, handle)) &&
336 key, room,
338 return GNUNET_YES;
339
341 return GNUNET_NO;
342}
struct GNUNET_MESSENGER_SrvRoom * create_srv_room(struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_HashCode *key)
Creates and allocates a new room for a handle with a given key.
enum GNUNET_GenericReturnValue open_srv_room(struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvHandle *handle)
Tries to open a room for a given handle.
static void initialize_service_handle(struct GNUNET_MESSENGER_SrvHandle *handle, struct GNUNET_MESSENGER_SrvRoom *room)
struct GNUNET_MESSENGER_SrvRoom * get_service_room(const struct GNUNET_MESSENGER_Service *service, const struct GNUNET_HashCode *key)
Returns the room identified by a given key for a service.
enum GNUNET_GenericReturnValue GNUNET_CONTAINER_multihashmap_put(struct GNUNET_CONTAINER_MultiHashMap *map, const struct GNUNET_HashCode *key, void *value, enum GNUNET_CONTAINER_MultiHashMapOption opt)
Store a key-value pair in the map.
@ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST
, ' bother checking if a value already exists (faster than GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE...

References create_srv_room(), destroy_srv_room(), get_service_room(), GNUNET_assert, GNUNET_CONTAINER_multihashmap_put(), GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST, GNUNET_NO, GNUNET_OK, GNUNET_YES, handle, initialize_service_handle(), key, open_srv_room(), and service.

Referenced by open_srv_handle_room().

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◆ entry_service_room()

enum GNUNET_GenericReturnValue entry_service_room ( struct GNUNET_MESSENGER_Service service,
struct GNUNET_MESSENGER_SrvHandle handle,
const struct GNUNET_PeerIdentity door,
const struct GNUNET_HashCode key 
)

Tries to enter a room using a given key for a service by a specific handle.

The room will be created if necessary. If the function is successful, it returns GNUNET_YES, otherwise GNUNET_NO.

The room will be entered through the peer identitied by the peer identity provided as door parameter and a new connection will be made.

Parameters
[in,out]serviceService
[in,out]handleHandle
[in]doorPeer identity
[in]keyKey of room
Returns
GNUNET_YES on success, otherwise GNUNET_NO

Definition at line 346 of file gnunet-service-messenger_service.c.

350{
351 GNUNET_assert ((service) && (handle) && (door) && (key));
352
354
355 if (room)
356 {
358
359 if (GNUNET_YES == enter_srv_room_at (room, handle, door))
360 return GNUNET_YES;
361 else
362 return GNUNET_NO;
363 }
364
365 room = create_srv_room (handle, key);
367
368 if ((GNUNET_YES == enter_srv_room_at (room, handle, door)) &&
370 key, room,
372 {
373 return GNUNET_YES;
374 }
375 else
376 {
378 return GNUNET_NO;
379 }
380
381}
enum GNUNET_GenericReturnValue enter_srv_room_at(struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_PeerIdentity *door)
Connects a tunnel to a hosting peer of a room through a so called door which is represented by a peer...

References create_srv_room(), destroy_srv_room(), enter_srv_room_at(), get_service_room(), GNUNET_assert, GNUNET_CONTAINER_multihashmap_put(), GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST, GNUNET_NO, GNUNET_OK, GNUNET_YES, handle, initialize_service_handle(), key, and service.

Referenced by entry_srv_handle_room().

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◆ close_service_room()

enum GNUNET_GenericReturnValue close_service_room ( struct GNUNET_MESSENGER_Service service,
struct GNUNET_MESSENGER_SrvHandle handle,
const struct GNUNET_HashCode key,
enum GNUNET_GenericReturnValue  deletion 
)

Tries to close a room using a given key for a service by a specific handle.

The room will be created if necessary. If the function is successful, it returns GNUNET_YES, otherwise GNUNET_NO.

If the specific handle is currently the host of the room for this service, a new handle which is a member will take its place. Otherwise the room will be destroyed for this service.

Parameters
[in,out]serviceService
[in,out]handleHandle
[in]keyKey of room
[in]deletionFlag to indicate context of closing
Returns
GNUNET_YES on success, otherwise GNUNET_NO

Definition at line 385 of file gnunet-service-messenger_service.c.

389{
390 GNUNET_assert ((service) && (handle) && (key));
391
393
394 if (! room)
395 return GNUNET_NO;
396
397 struct GNUNET_ShortHashCode *id = (struct GNUNET_ShortHashCode*) (
399
400 GNUNET_assert (id);
401
403 key, id))
404 return GNUNET_NO;
405
406 GNUNET_free (id);
407
408 struct GNUNET_MESSENGER_SrvHandle *member_handle = (struct
410 *)
412 &(service->handles), key);
413
414 if (! member_handle)
415 {
417 room))
418 {
419 destroy_srv_room (room, deletion);
420 return GNUNET_YES;
421 }
422 else
423 return GNUNET_NO;
424 }
425
426 if (room->host == handle)
427 {
428 room->host = member_handle;
429
430 if (room->peer_message)
432 room));
433 }
434
435 return GNUNET_YES;
436}
struct GNUNET_MESSENGER_SrvHandle * find_list_handle_by_member(const struct GNUNET_MESSENGER_ListHandles *handles, const struct GNUNET_HashCode *key)
Searches linearly through the list of handles for members of a specific room which is identified by a...
struct GNUNET_MESSENGER_Message * create_message_connection(const struct GNUNET_MESSENGER_SrvRoom *room)
Creates and allocates a new connection message containing the amount of the peer's connections in a g...
enum GNUNET_GenericReturnValue send_srv_room_message(struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvHandle *handle, struct GNUNET_MESSENGER_Message *message)
Sends a message from a given handle into a room.
enum GNUNET_GenericReturnValue GNUNET_CONTAINER_multihashmap_remove(struct GNUNET_CONTAINER_MultiHashMap *map, const struct GNUNET_HashCode *key, const void *value)
Remove the given key-value pair from the map.
struct GNUNET_HashCode * peer_message
struct GNUNET_MESSENGER_SrvHandle * host

References create_message_connection(), destroy_srv_room(), find_list_handle_by_member(), get_service_room(), GNUNET_assert, GNUNET_CONTAINER_multihashmap_get(), GNUNET_CONTAINER_multihashmap_remove(), GNUNET_free, GNUNET_NO, GNUNET_OK, GNUNET_YES, handle, GNUNET_MESSENGER_SrvRoom::host, key, GNUNET_MESSENGER_SrvRoom::peer_message, send_srv_room_message(), and service.

Referenced by close_srv_handle_room(), and iterate_close_rooms().

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◆ handle_service_message()

void handle_service_message ( struct GNUNET_MESSENGER_Service service,
struct GNUNET_MESSENGER_SrvRoom room,
const struct GNUNET_MESSENGER_SenderSession session,
const struct GNUNET_MESSENGER_Message message,
const struct GNUNET_HashCode hash 
)

Sends a received or sent message with a given hash to each handle of a service which is currently member of a specific room for handling it in the client API.

Parameters
[in,out]serviceService
[in,out]roomRoom
[in]sessionSender session
[in]messageMessage
[in]hashHash of message

Definition at line 440 of file gnunet-service-messenger_service.c.

445{
446 GNUNET_assert ((service) && (room) && (session) && (message) && (hash));
447
448 struct GNUNET_MESSENGER_ListHandle *element = service->handles.head;
449
450 while (element)
451 {
452 notify_srv_handle_message (element->handle, room, session, message, hash,
453 GNUNET_YES);
454 element = element->next;
455 }
456}
void notify_srv_handle_message(struct GNUNET_MESSENGER_SrvHandle *handle, struct GNUNET_MESSENGER_SrvRoom *room, const struct GNUNET_MESSENGER_SenderSession *session, const struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash, enum GNUNET_GenericReturnValue recent)
Notifies the handle that a new message was received or sent.
struct GNUNET_MESSENGER_ListHandle * next
struct GNUNET_MESSENGER_SrvHandle * handle

References GNUNET_assert, GNUNET_YES, GNUNET_MESSENGER_ListHandle::handle, GNUNET_MESSENGER_ListHandle::next, notify_srv_handle_message(), and service.

Referenced by handle_room_messages().

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