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Diffstat (limited to 'src/service/messenger/messenger_api_util.c')
-rw-r--r-- | src/service/messenger/messenger_api_util.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/src/service/messenger/messenger_api_util.c b/src/service/messenger/messenger_api_util.c new file mode 100644 index 000000000..1d38f87a1 --- /dev/null +++ b/src/service/messenger/messenger_api_util.c | |||
@@ -0,0 +1,129 @@ | |||
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 | */ | ||
20 | /** | ||
21 | * @author Tobias Frisch | ||
22 | * @file src/messenger/messenger_api_util.c | ||
23 | * @brief messenger api: client implementation of GNUnet MESSENGER service | ||
24 | */ | ||
25 | |||
26 | #include "messenger_api_util.h" | ||
27 | |||
28 | #include "gnunet_identity_service.h" | ||
29 | #include "gnunet_messenger_service.h" | ||
30 | |||
31 | static void | ||
32 | callback_close_channel (void *cls) | ||
33 | { | ||
34 | struct GNUNET_CADET_Channel *channel = cls; | ||
35 | |||
36 | if (channel) | ||
37 | GNUNET_CADET_channel_destroy (channel); | ||
38 | } | ||
39 | |||
40 | |||
41 | void | ||
42 | delayed_disconnect_channel (struct GNUNET_CADET_Channel *channel) | ||
43 | { | ||
44 | GNUNET_assert (channel); | ||
45 | |||
46 | GNUNET_SCHEDULER_add_delayed_with_priority (GNUNET_TIME_relative_get_zero_ (), | ||
47 | GNUNET_SCHEDULER_PRIORITY_URGENT, | ||
48 | callback_close_channel, channel); | ||
49 | } | ||
50 | |||
51 | |||
52 | enum GNUNET_GenericReturnValue | ||
53 | generate_free_member_id (struct GNUNET_ShortHashCode *id, | ||
54 | const struct GNUNET_CONTAINER_MultiShortmap *members) | ||
55 | { | ||
56 | GNUNET_assert (id); | ||
57 | |||
58 | size_t counter = 1 + (members ? GNUNET_CONTAINER_multishortmap_size ( | ||
59 | members) : 0); | ||
60 | |||
61 | do | ||
62 | { | ||
63 | GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_STRONG, id, sizeof(struct | ||
64 | GNUNET_ShortHashCode)); | ||
65 | |||
66 | if ((members) && (GNUNET_YES == GNUNET_CONTAINER_multishortmap_contains ( | ||
67 | members, id))) | ||
68 | counter--; | ||
69 | else | ||
70 | break; | ||
71 | } | ||
72 | while (counter > 0); | ||
73 | |||
74 | if (counter) | ||
75 | return GNUNET_YES; | ||
76 | |||
77 | return GNUNET_NO; | ||
78 | } | ||
79 | |||
80 | |||
81 | const struct GNUNET_CRYPTO_PrivateKey* | ||
82 | get_anonymous_private_key () | ||
83 | { | ||
84 | const struct GNUNET_IDENTITY_Ego *ego = GNUNET_IDENTITY_ego_get_anonymous (); | ||
85 | return GNUNET_IDENTITY_ego_get_private_key (ego); | ||
86 | } | ||
87 | |||
88 | |||
89 | const struct GNUNET_CRYPTO_PublicKey* | ||
90 | get_anonymous_public_key () | ||
91 | { | ||
92 | static struct GNUNET_CRYPTO_PublicKey public_key; | ||
93 | static struct GNUNET_IDENTITY_Ego *ego = NULL; | ||
94 | |||
95 | if (! ego) | ||
96 | { | ||
97 | ego = GNUNET_IDENTITY_ego_get_anonymous (); | ||
98 | GNUNET_IDENTITY_ego_get_public_key (ego, &public_key); | ||
99 | } | ||
100 | |||
101 | return &public_key; | ||
102 | } | ||
103 | |||
104 | |||
105 | void | ||
106 | convert_messenger_key_to_port (const struct GNUNET_HashCode *key, | ||
107 | struct GNUNET_HashCode *port) | ||
108 | { | ||
109 | static uint32_t version_value = 0; | ||
110 | static struct GNUNET_HashCode version; | ||
111 | |||
112 | if (! version_value) | ||
113 | { | ||
114 | version_value = (uint32_t) (GNUNET_MESSENGER_VERSION); | ||
115 | version_value = ((version_value >> 16) & 0xFFFF); | ||
116 | version_value = GNUNET_htole32 (version_value); | ||
117 | GNUNET_CRYPTO_hash (&version_value, sizeof(version_value), &version); | ||
118 | } | ||
119 | |||
120 | GNUNET_CRYPTO_hash_sum (key, &version, port); | ||
121 | } | ||
122 | |||
123 | |||
124 | void | ||
125 | convert_peer_identity_to_id (const struct GNUNET_PeerIdentity *identity, | ||
126 | struct GNUNET_ShortHashCode *id) | ||
127 | { | ||
128 | GNUNET_memcpy (id, identity, sizeof(struct GNUNET_ShortHashCode)); | ||
129 | } | ||