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-rw-r--r--src/peerstore/peerstore_common.c193
1 files changed, 0 insertions, 193 deletions
diff --git a/src/peerstore/peerstore_common.c b/src/peerstore/peerstore_common.c
deleted file mode 100644
index 0f6a73fa6..000000000
--- a/src/peerstore/peerstore_common.c
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@@ -1,193 +0,0 @@
1/*
2 This file is part of GNUnet
3 Copyright (C) 2012-2013 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 * @file peerstore/peerstore_common.c
22 * @brief Helper peerstore functions
23 * @author Omar Tarabai
24 */
25
26#include "peerstore_common.h"
27
28/**
29 * Creates a hash of the given key combination
30 *
31 */
32void
33PEERSTORE_hash_key (const char *sub_system,
34 const struct GNUNET_PeerIdentity *peer,
35 const char *key,
36 struct GNUNET_HashCode *ret)
37{
38 size_t sssize;
39 size_t psize;
40 size_t ksize;
41 size_t totalsize;
42 void *block;
43 void *blockptr;
44
45 sssize = strlen (sub_system) + 1;
46 psize = sizeof(struct GNUNET_PeerIdentity);
47 ksize = strlen (key) + 1;
48 totalsize = sssize + psize + ksize;
49 block = GNUNET_malloc (totalsize);
50 blockptr = block;
51 GNUNET_memcpy (blockptr, sub_system, sssize);
52 blockptr += sssize;
53 GNUNET_memcpy (blockptr, peer, psize);
54 blockptr += psize;
55 GNUNET_memcpy (blockptr, key, ksize);
56 GNUNET_CRYPTO_hash (block, totalsize, ret);
57 GNUNET_free (block);
58}
59
60
61/**
62 * Creates a MQ envelope for a single record
63 *
64 * @param sub_system sub system string
65 * @param peer Peer identity (can be NULL)
66 * @param key record key string (can be NULL)
67 * @param value record value BLOB (can be NULL)
68 * @param value_size record value size in bytes (set to 0 if value is NULL)
69 * @param expiry time after which the record expires
70 * @param options options specific to the storage operation
71 * @param msg_type message type to be set in header
72 * @return pointer to record message struct
73 */
74struct GNUNET_MQ_Envelope *
75PEERSTORE_create_record_mq_envelope (const char *sub_system,
76 const struct GNUNET_PeerIdentity *peer,
77 const char *key,
78 const void *value,
79 size_t value_size,
80 struct GNUNET_TIME_Absolute expiry,
81 enum GNUNET_PEERSTORE_StoreOption options,
82 uint16_t msg_type)
83{
84 struct StoreRecordMessage *srm;
85 struct GNUNET_MQ_Envelope *ev;
86 size_t ss_size;
87 size_t key_size;
88 size_t msg_size;
89 void *dummy;
90
91 GNUNET_assert (NULL != sub_system);
92 ss_size = strlen (sub_system) + 1;
93 if (NULL == key)
94 key_size = 0;
95 else
96 key_size = strlen (key) + 1;
97 msg_size = ss_size + key_size + value_size;
98 ev = GNUNET_MQ_msg_extra (srm, msg_size, msg_type);
99 srm->key_size = htons (key_size);
100 srm->expiry = GNUNET_TIME_absolute_hton (expiry);
101 if (NULL == peer)
102 srm->peer_set = htons (GNUNET_NO);
103 else
104 {
105 srm->peer_set = htons (GNUNET_YES);
106 srm->peer = *peer;
107 }
108 srm->sub_system_size = htons (ss_size);
109 srm->value_size = htons (value_size);
110 srm->options = htonl (options);
111 dummy = &srm[1];
112 GNUNET_memcpy (dummy, sub_system, ss_size);
113 dummy += ss_size;
114 GNUNET_memcpy (dummy, key, key_size);
115 dummy += key_size;
116 GNUNET_memcpy (dummy, value, value_size);
117 return ev;
118}
119
120
121/**
122 * Parses a message carrying a record
123 *
124 * @param srm the actual message
125 * @return Pointer to record or NULL if error
126 */
127struct GNUNET_PEERSTORE_Record *
128PEERSTORE_parse_record_message (const struct StoreRecordMessage *srm)
129{
130 struct GNUNET_PEERSTORE_Record *record;
131 uint16_t req_size;
132 uint16_t ss_size;
133 uint16_t key_size;
134 uint16_t value_size;
135 char *dummy;
136
137 req_size = ntohs (srm->header.size) - sizeof(*srm);
138 ss_size = ntohs (srm->sub_system_size);
139 key_size = ntohs (srm->key_size);
140 value_size = ntohs (srm->value_size);
141 if (ss_size + key_size + value_size != req_size)
142 {
143 GNUNET_break (0);
144 return NULL;
145 }
146 record = GNUNET_new (struct GNUNET_PEERSTORE_Record);
147 if (GNUNET_YES == ntohs (srm->peer_set))
148 {
149 record->peer = srm->peer;
150 }
151 record->expiry = GNUNET_TIME_absolute_ntoh (srm->expiry);
152 dummy = (char *) &srm[1];
153 if (ss_size > 0)
154 {
155 record->sub_system = GNUNET_strdup (dummy);
156 dummy += ss_size;
157 }
158 if (key_size > 0)
159 {
160 record->key = GNUNET_strdup (dummy);
161 dummy += key_size;
162 }
163 if (value_size > 0)
164 {
165 record->value = GNUNET_malloc (value_size);
166 GNUNET_memcpy (record->value,
167 dummy,
168 value_size);
169 }
170 record->value_size = value_size;
171 return record;
172}
173
174
175/**
176 * Free any memory allocated for this record
177 *
178 * @param record
179 */
180void
181PEERSTORE_destroy_record (struct GNUNET_PEERSTORE_Record *record)
182{
183 if (NULL != record->sub_system)
184 GNUNET_free (record->sub_system);
185 if (NULL != record->key)
186 GNUNET_free (record->key);
187 if (NULL != record->value)
188 {
189 GNUNET_free (record->value);
190 record->value = 0;
191 }
192 GNUNET_free (record);
193}