GNUnet 0.22.2
messenger_api_util.c
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1/*
2 This file is part of GNUnet.
3 Copyright (C) 2020--2024 GNUnet e.V.
4
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your option) any later version.
9
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Affero General Public License for more details.
14
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
17
18 SPDX-License-Identifier: AGPL3.0-or-later
19 */
26#include "messenger_api_util.h"
27
30
31static void
33{
34 struct GNUNET_CADET_Channel *channel;
35
36 channel = cls;
37
38 if (channel)
40}
41
42
43void
45{
46 GNUNET_assert (channel);
47
50 callback_close_channel, channel);
51}
52
53
56 const struct GNUNET_CONTAINER_MultiShortmap *members)
57{
58 size_t counter;
59
60 GNUNET_assert (id);
61
62 counter = 1 + (members ? GNUNET_CONTAINER_multishortmap_size (members) : 0);
63
64 do
65 {
68
70 members, id)))
71 counter--;
72 else
73 break;
74 }
75 while (counter > 0);
76
77 if (counter)
78 return GNUNET_YES;
79
80 return GNUNET_NO;
81}
82
83
84const struct GNUNET_CRYPTO_PrivateKey*
86{
87 const struct GNUNET_IDENTITY_Ego *ego;
90}
91
92
93const struct GNUNET_CRYPTO_PublicKey*
95{
96 static struct GNUNET_CRYPTO_PublicKey public_key;
97 static struct GNUNET_IDENTITY_Ego *ego = NULL;
98
99 if (! ego)
100 {
102 GNUNET_IDENTITY_ego_get_public_key (ego, &public_key);
103 }
104
105 return &public_key;
106}
107
108
109void
111 struct GNUNET_HashCode *port)
112{
113 static struct GNUNET_HashCode version;
114 static uint32_t version_value = 0;
115
116 GNUNET_assert ((key) && (port));
117
118 if (! version_value)
119 {
120 version_value = (uint32_t) (GNUNET_MESSENGER_VERSION);
121 version_value = ((version_value >> 16) & 0xFFFF);
122 version_value = GNUNET_htole32 (version_value);
123 GNUNET_CRYPTO_hash (&version_value, sizeof(version_value), &version);
124 }
125
126 GNUNET_CRYPTO_hash_sum (key, &version, port);
127}
128
129
130void
132 struct GNUNET_ShortHashCode *id)
133{
134 GNUNET_assert ((identity) && (id));
135
136 GNUNET_memcpy (id, identity, sizeof(struct GNUNET_ShortHashCode));
137}
static uint16_t port
Port number.
Definition: gnunet-bcd.c:146
struct GNUNET_HashCode key
The key used in the DHT.
static struct GNUNET_IDENTITY_Handle * identity
Which namespace do we publish to? NULL if we do not publish to a namespace.
Identity service; implements identity management for GNUnet.
void GNUNET_CADET_channel_destroy(struct GNUNET_CADET_Channel *channel)
Destroy an existing channel.
Definition: cadet_api.c:833
void GNUNET_CRYPTO_random_block(enum GNUNET_CRYPTO_Quality mode, void *buffer, size_t length)
Fill block with a random values.
@ GNUNET_CRYPTO_QUALITY_STRONG
High-quality operations are desired.
void GNUNET_CRYPTO_hash(const void *block, size_t size, struct GNUNET_HashCode *ret)
Compute hash of a given block.
Definition: crypto_hash.c:41
void GNUNET_CRYPTO_hash_sum(const struct GNUNET_HashCode *a, const struct GNUNET_HashCode *delta, struct GNUNET_HashCode *result)
compute result = a + delta
Definition: crypto_hash.c:120
unsigned int GNUNET_CONTAINER_multishortmap_size(const struct GNUNET_CONTAINER_MultiShortmap *map)
Get the number of key-value pairs in the map.
int GNUNET_CONTAINER_multishortmap_contains(const struct GNUNET_CONTAINER_MultiShortmap *map, const struct GNUNET_ShortHashCode *key)
Check if the map contains any value under the given key (including values that are NULL).
const struct GNUNET_CRYPTO_PrivateKey * GNUNET_IDENTITY_ego_get_private_key(const struct GNUNET_IDENTITY_Ego *ego)
Obtain the ECC key associated with a ego.
Definition: identity_api.c:517
struct GNUNET_IDENTITY_Ego * GNUNET_IDENTITY_ego_get_anonymous(void)
Obtain the ego representing 'anonymous' users.
Definition: identity_api.c:157
void GNUNET_IDENTITY_ego_get_public_key(struct GNUNET_IDENTITY_Ego *ego, struct GNUNET_CRYPTO_PublicKey *pk)
Get the identifier (public key) of an ego.
Definition: identity_api.c:529
#define GNUNET_htole32(x)
#define GNUNET_memcpy(dst, src, n)
Call memcpy() but check for n being 0 first.
GNUNET_GenericReturnValue
Named constants for return values.
@ GNUNET_SCHEDULER_PRIORITY_URGENT
Run with priority for urgent tasks.
@ GNUNET_YES
@ GNUNET_NO
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define GNUNET_MESSENGER_VERSION
Version number of GNUnet Messenger API.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_delayed_with_priority(struct GNUNET_TIME_Relative delay, enum GNUNET_SCHEDULER_Priority priority, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay.
Definition: scheduler.c:1207
struct GNUNET_TIME_Relative GNUNET_TIME_relative_get_zero_(void)
Return relative time of 0ms.
Definition: time.c:133
enum GNUNET_GenericReturnValue generate_free_member_id(struct GNUNET_ShortHashCode *id, const struct GNUNET_CONTAINER_MultiShortmap *members)
Tries to generate an unused member id and store it into the id parameter.
static void callback_close_channel(void *cls)
const struct GNUNET_CRYPTO_PrivateKey * get_anonymous_private_key(void)
Returns the private identity key of GNUNET_IDENTITY_ego_get_anonymous() without recalculating it ever...
void convert_messenger_key_to_port(const struct GNUNET_HashCode *key, struct GNUNET_HashCode *port)
Converts a Messenger service key of a room to the specific port which gets used for the CADET channel...
void convert_peer_identity_to_id(const struct GNUNET_PeerIdentity *identity, struct GNUNET_ShortHashCode *id)
Converts a peers identity to a short hash code which can be used as id to refer to a peer via sender ...
const struct GNUNET_CRYPTO_PublicKey * get_anonymous_public_key(void)
Returns the public identity key of GNUNET_IDENTITY_ego_get_anonymous() without recalculating it every...
void delayed_disconnect_channel(struct GNUNET_CADET_Channel *channel)
Starts an urgent task to close a CADET channel asynchronously.
Opaque handle to a channel.
Definition: cadet.h:116
Internal representation of the hash map.
A private key for an identity as per LSD0001.
An identity key as per LSD0001.
A 512-bit hashcode.
Handle for an ego.
Definition: identity.h:37
The identity of the host (wraps the signing key of the peer).
A 256-bit hashcode.