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gnunet-service-messenger_message_send.h File Reference
#include "gnunet-service-messenger_room.h"
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Functions

void send_message_join (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash)
 Handles a sent join message to ensure growth of the decentralized room structure. More...
 
void send_message_key (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash)
 Handles a sent key message to ensure changes to the public key of the sending handle. More...
 
void send_message_peer (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash)
 Handles a sent peer message to update the rooms peer message of this service. More...
 
void send_message_id (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash)
 Handles a sent id message to update the handles member id in the room. More...
 
void send_message_request (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash)
 Handles a sent request message to trigger the request operation for this service. More...
 

Function Documentation

◆ send_message_join()

void send_message_join ( struct GNUNET_MESSENGER_SrvRoom *  room,
struct GNUNET_MESSENGER_SrvHandle *  handle,
const struct GNUNET_MESSENGER_Message *  message,
const struct GNUNET_HashCode *  hash 
)

Handles a sent join message to ensure growth of the decentralized room structure.

(if the service provides a peer message for this room currently, it will be forwarded)

Parameters
[in,out]roomRoom of the message
[in,out]handleSending handle
[in]messageJOIN-Message
[in]hashHash of the message

Definition at line 143 of file gnunet-service-messenger_message_send.c.

147{
148 struct GNUNET_MESSENGER_MemberStore *member_store;
149 struct GNUNET_MESSENGER_Member *member;
150 struct GNUNET_MESSENGER_MemberSession *session;
151
152 set_srv_handle_key (handle, &(message->body.join.key));
153
154 member_store = get_srv_room_member_store (room);
155 member = add_store_member (member_store,
156 &(message->header.sender_id));
157
158 if (! member)
159 {
160 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
161 "A member could not join with ID: %s\n",
162 GNUNET_sh2s (&(message->header.sender_id)));
163 goto skip_member_notification;
164 }
165
166 session = get_member_session_of (member, message, hash);
167
168 if (! session)
169 {
170 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
171 "A valid session is required to join a room!\n");
172 goto skip_member_notification;
173 }
174
175 {
176 struct GNUNET_MESSENGER_MemberNotify notify;
177
178 notify.room = room;
179 notify.handle = handle;
180 notify.session = session;
181
182 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
183 "Notify about all member sessions except: %s\n",
184 GNUNET_sh2s (get_member_session_id (session)));
185
186 iterate_store_members (get_srv_room_member_store (room),
187 iterate_notify_about_members, &notify);
188 }
189
190skip_member_notification:
191 check_srv_room_peer_status (room, NULL);
192}
set_srv_handle_key
void set_srv_handle_key(struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_CRYPTO_PublicKey *key)
Sets the public key of a given handle.
Definition: gnunet-service-messenger_handle.c:117
get_member_session_of
struct GNUNET_MESSENGER_MemberSession * get_member_session_of(struct GNUNET_MESSENGER_Member *member, const struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash)
Returns the member session of a member using a public key which can verify the signature of a given m...
Definition: gnunet-service-messenger_member.c:440
get_member_session_id
const struct GNUNET_ShortHashCode * get_member_session_id(const struct GNUNET_MESSENGER_MemberSession *session)
Returns the member id of a given member session.
Definition: gnunet-service-messenger_member_session.c:446
iterate_store_members
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 ...
Definition: gnunet-service-messenger_member_store.c:332
add_store_member
struct GNUNET_MESSENGER_Member * add_store_member(struct GNUNET_MESSENGER_MemberStore *store, const struct GNUNET_ShortHashCode *id)
Adds a member to a store under a specific id and returns it on success.
Definition: gnunet-service-messenger_member_store.c:275
iterate_notify_about_members
static enum GNUNET_GenericReturnValue iterate_notify_about_members(void *cls, const struct GNUNET_CRYPTO_PublicKey *public_key, struct GNUNET_MESSENGER_MemberSession *session)
Definition: gnunet-service-messenger_message_send.c:110
check_srv_room_peer_status
void check_srv_room_peer_status(struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvTunnel *tunnel)
Checks the current state of opening a given room from this peer and re-publishes it if necessary to a...
Definition: gnunet-service-messenger_room.c:680
get_srv_room_member_store
struct GNUNET_MESSENGER_MemberStore * get_srv_room_member_store(struct GNUNET_MESSENGER_SrvRoom *room)
Returns the used member store of a given room.
Definition: gnunet-service-messenger_room.c:161
handle
static struct GNUNET_VPN_Handle * handle
Handle to vpn service.
Definition: gnunet-vpn.c:35
GNUNET_log
#define GNUNET_log(kind,...)
Definition: gnunet_common.h:548
GNUNET_sh2s
const char * GNUNET_sh2s(const struct GNUNET_ShortHashCode *shc)
Convert a short hash value to a string (for printing debug messages).
Definition: common_logging.c:1259
GNUNET_ERROR_TYPE_WARNING
@ GNUNET_ERROR_TYPE_WARNING
Definition: gnunet_common.h:415
GNUNET_ERROR_TYPE_DEBUG
@ GNUNET_ERROR_TYPE_DEBUG
Definition: gnunet_common.h:421
GNUNET_MESSENGER_MemberNotify
Definition: gnunet-service-messenger_message_send.c:37
GNUNET_MESSENGER_MemberNotify::session
struct GNUNET_MESSENGER_MemberSession * session
Definition: gnunet-service-messenger_message_send.c:40
GNUNET_MESSENGER_MemberNotify::room
struct GNUNET_MESSENGER_SrvRoom * room
Definition: gnunet-service-messenger_message_send.c:38
GNUNET_MESSENGER_MemberSession
Definition: gnunet-service-messenger_member_session.h:38
GNUNET_MESSENGER_MemberSession::member
struct GNUNET_MESSENGER_Member * member
Definition: gnunet-service-messenger_member_session.h:39
GNUNET_MESSENGER_MemberStore
Definition: gnunet-service-messenger_member_store.h:39
GNUNET_MESSENGER_Member
Definition: gnunet-service-messenger_member.h:33
GNUNET_MESSENGER_MessageBody::join
struct GNUNET_MESSENGER_MessageJoin join
Definition: gnunet_messenger_service.h:656
GNUNET_MESSENGER_MessageHeader::sender_id
struct GNUNET_ShortHashCode sender_id
The senders id inside of the room the message was sent in.
Definition: gnunet_messenger_service.h:261
GNUNET_MESSENGER_MessageJoin::key
struct GNUNET_CRYPTO_PublicKey key
The senders public key to verify its signatures.
Definition: gnunet_messenger_service.h:303
GNUNET_MESSENGER_Message::header
struct GNUNET_MESSENGER_MessageHeader header
Header.
Definition: gnunet_messenger_service.h:687
GNUNET_MESSENGER_Message::body
struct GNUNET_MESSENGER_MessageBody body
Body.
Definition: gnunet_messenger_service.h:692

References add_store_member(), GNUNET_MESSENGER_Message::body, check_srv_room_peer_status(), get_member_session_id(), get_member_session_of(), get_srv_room_member_store(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_ERROR_TYPE_WARNING, GNUNET_log, GNUNET_sh2s(), handle, GNUNET_MESSENGER_MemberNotify::handle, GNUNET_MESSENGER_Message::header, iterate_notify_about_members(), iterate_store_members(), GNUNET_MESSENGER_MessageBody::join, GNUNET_MESSENGER_MessageJoin::key, GNUNET_MESSENGER_MemberSession::member, GNUNET_MESSENGER_MemberNotify::room, GNUNET_MESSENGER_MessageHeader::sender_id, GNUNET_MESSENGER_MemberNotify::session, and set_srv_handle_key().

Referenced by send_srv_room_message().

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◆ send_message_key()

void send_message_key ( struct GNUNET_MESSENGER_SrvRoom *  room,
struct GNUNET_MESSENGER_SrvHandle *  handle,
const struct GNUNET_MESSENGER_Message *  message,
const struct GNUNET_HashCode *  hash 
)

Handles a sent key message to ensure changes to the public key of the sending handle.

Parameters
[in,out]roomRoom of the message
[in,out]handleSending handle
[in]messageKEY-Message
[in]hashHash of the message

Definition at line 196 of file gnunet-service-messenger_message_send.c.

200{
201 set_srv_handle_key (handle, &(message->body.key.key));
202}
GNUNET_MESSENGER_MessageBody::key
struct GNUNET_MESSENGER_MessageKey key
Definition: gnunet_messenger_service.h:659
GNUNET_MESSENGER_MessageKey::key
struct GNUNET_CRYPTO_PublicKey key
The new public key which replaces the current senders public key.
Definition: gnunet_messenger_service.h:341

References GNUNET_MESSENGER_Message::body, handle, GNUNET_MESSENGER_MessageKey::key, GNUNET_MESSENGER_MessageBody::key, and set_srv_handle_key().

Referenced by send_srv_room_message().

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◆ send_message_peer()

void send_message_peer ( struct GNUNET_MESSENGER_SrvRoom *  room,
struct GNUNET_MESSENGER_SrvHandle *  handle,
const struct GNUNET_MESSENGER_Message *  message,
const struct GNUNET_HashCode *  hash 
)

Handles a sent peer message to update the rooms peer message of this service.

(a set peer message indicates this service being a part of the decentralized room structure)

Parameters
[in,out]roomRoom of the message
[in,out]handleSending handle
[in]messagePEER-Message
[in]hashHash of the message

Definition at line 206 of file gnunet-service-messenger_message_send.c.

210{
211 if (! room->peer_message)
212 room->peer_message = GNUNET_new (struct GNUNET_HashCode);
213
214 GNUNET_memcpy (room->peer_message, hash, sizeof(struct GNUNET_HashCode));
215
216 send_srv_room_message (room, room->host, create_message_connection (room));
217}
create_message_connection
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...
Definition: gnunet-service-messenger_message_kind.c:118
send_srv_room_message
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.
Definition: gnunet-service-messenger_room.c:580
GNUNET_memcpy
#define GNUNET_memcpy(dst, src, n)
Call memcpy() but check for n being 0 first.
Definition: gnunet_common.h:1317
GNUNET_new
#define GNUNET_new(type)
Allocate a struct or union of the given type.
Definition: gnunet_common.h:1237
GNUNET_HashCode
A 512-bit hashcode.
Definition: gnunet_common.h:284
GNUNET_MESSENGER_SrvRoom::peer_message
struct GNUNET_HashCode * peer_message
Definition: gnunet-service-messenger_room.h:74
GNUNET_MESSENGER_SrvRoom::host
struct GNUNET_MESSENGER_SrvHandle * host
Definition: gnunet-service-messenger_room.h:59

References create_message_connection(), GNUNET_memcpy, GNUNET_new, GNUNET_MESSENGER_SrvRoom::host, GNUNET_MESSENGER_SrvRoom::peer_message, GNUNET_MESSENGER_MemberNotify::room, and send_srv_room_message().

Referenced by send_srv_room_message().

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◆ send_message_id()

void send_message_id ( struct GNUNET_MESSENGER_SrvRoom *  room,
struct GNUNET_MESSENGER_SrvHandle *  handle,
const struct GNUNET_MESSENGER_Message *  message,
const struct GNUNET_HashCode *  hash 
)

Handles a sent id message to update the handles member id in the room.

(changing member id is useful to prevent collisions)

Parameters
[in,out]roomRoom of the message
[in,out]handleSending handle
[in]messageID-Message
[in]hashHash of the message

Definition at line 221 of file gnunet-service-messenger_message_send.c.

225{
226 change_srv_handle_member_id (handle, get_srv_room_key (room),
227 &(message->body.id.id));
228}
change_srv_handle_member_id
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...
Definition: gnunet-service-messenger_handle.c:203
get_srv_room_key
const struct GNUNET_HashCode * get_srv_room_key(const struct GNUNET_MESSENGER_SrvRoom *room)
Returns the shared secret you need to access a room.
Definition: gnunet-service-messenger_room.c:811
GNUNET_MESSENGER_MessageBody::id
struct GNUNET_MESSENGER_MessageId id
Definition: gnunet_messenger_service.h:661
GNUNET_MESSENGER_MessageId::id
struct GNUNET_ShortHashCode id
The new id which will replace the senders id in a room.
Definition: gnunet_messenger_service.h:369

References GNUNET_MESSENGER_Message::body, change_srv_handle_member_id(), get_srv_room_key(), handle, GNUNET_MESSENGER_MessageId::id, GNUNET_MESSENGER_MessageBody::id, and GNUNET_MESSENGER_MemberNotify::room.

Referenced by send_srv_room_message().

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◆ send_message_request()

void send_message_request ( struct GNUNET_MESSENGER_SrvRoom *  room,
struct GNUNET_MESSENGER_SrvHandle *  handle,
const struct GNUNET_MESSENGER_Message *  message,
const struct GNUNET_HashCode *  hash 
)

Handles a sent request message to trigger the request operation for this service.

(the request operation will deactivate the possibility of spamming requests)

Parameters
[in,out]roomRoom of the message
[in,out]handleSending handle
[in]messageREQUEST-Message
[in]hashHash of the message

Definition at line 232 of file gnunet-service-messenger_message_send.c.

236{
237 struct GNUNET_MESSENGER_OperationStore *operation_store;
238
239 operation_store = get_srv_room_operation_store (room);
240
241 use_store_operation (
242 operation_store,
243 &(message->body.request.hash),
244 GNUNET_MESSENGER_OP_REQUEST,
245 GNUNET_MESSENGER_REQUEST_DELAY
246 );
247}
GNUNET_MESSENGER_OP_REQUEST
@ GNUNET_MESSENGER_OP_REQUEST
Definition: gnunet-service-messenger_operation.h:35
use_store_operation
enum GNUNET_GenericReturnValue use_store_operation(struct GNUNET_MESSENGER_OperationStore *store, const struct GNUNET_HashCode *hash, enum GNUNET_MESSENGER_OperationType type, struct GNUNET_TIME_Relative delay)
Tries to use an operation under a given hash in a specific operation store.
Definition: gnunet-service-messenger_operation_store.c:192
get_srv_room_operation_store
struct GNUNET_MESSENGER_OperationStore * get_srv_room_operation_store(struct GNUNET_MESSENGER_SrvRoom *room)
Returns the used operation store of a given room.
Definition: gnunet-service-messenger_room.c:179
GNUNET_MESSENGER_REQUEST_DELAY
#define GNUNET_MESSENGER_REQUEST_DELAY
Definition: gnunet-service-messenger_room.h:47
GNUNET_MESSENGER_MessageBody::request
struct GNUNET_MESSENGER_MessageRequest request
Definition: gnunet_messenger_service.h:664
GNUNET_MESSENGER_MessageRequest::hash
struct GNUNET_HashCode hash
The hash of the requested message.
Definition: gnunet_messenger_service.h:411
GNUNET_MESSENGER_OperationStore
Definition: gnunet-service-messenger_operation_store.h:35
GNUNET_MESSENGER_OperationStore::room
struct GNUNET_MESSENGER_SrvRoom * room
Definition: gnunet-service-messenger_operation_store.h:36

References GNUNET_MESSENGER_Message::body, get_srv_room_operation_store(), GNUNET_MESSENGER_OP_REQUEST, GNUNET_MESSENGER_REQUEST_DELAY, GNUNET_MESSENGER_MessageRequest::hash, GNUNET_MESSENGER_MessageBody::request, GNUNET_MESSENGER_OperationStore::room, and use_store_operation().

Referenced by send_srv_room_message().

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