suricata
datasets-md5.c
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1 /* Copyright (C) 2017-2024 Open Information Security Foundation
2  *
3  * You can copy, redistribute or modify this Program under the terms of
4  * the GNU General Public License version 2 as published by the Free
5  * Software Foundation.
6  *
7  * This program is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10  * GNU General Public License for more details.
11  *
12  * You should have received a copy of the GNU General Public License
13  * version 2 along with this program; if not, write to the Free Software
14  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
15  * 02110-1301, USA.
16  */
17 
18 /**
19  * \file
20  *
21  * \author Victor Julien <victor@inliniac.net>
22  */
23 
24 #include "suricata-common.h"
25 #include "conf.h"
26 #include "datasets.h"
27 #include "datasets-context-json.h"
28 #include "datasets-md5.h"
29 #include "util-hash-lookup3.h"
30 
31 #include "util-thash.h"
32 #include "util-print.h"
33 
34 int Md5StrSet(void *dst, void *src)
35 {
36  Md5Type *src_s = src;
37  Md5Type *dst_s = dst;
38  memcpy(dst_s->md5, src_s->md5, sizeof(dst_s->md5));
39  dst_s->rep = src_s->rep;
40  return 0;
41 }
42 
43 int Md5StrJsonSet(void *dst, void *src)
44 {
45  if (Md5StrSet(dst, src) < 0)
46  return -1;
47 
48  Md5Type *src_s = src;
49  Md5Type *dst_s = dst;
50 
51  if (DatajsonCopyJson(&dst_s->json, &src_s->json) < 0)
52  return -1;
53 
54  return 0;
55 }
56 
57 bool Md5StrCompare(void *a, void *b)
58 {
59  const Md5Type *as = a;
60  const Md5Type *bs = b;
61 
62  return (memcmp(as->md5, bs->md5, sizeof(as->md5)) == 0);
63 }
64 
65 uint32_t Md5StrHash(uint32_t hash_seed, void *s)
66 {
67  const Md5Type *str = s;
68  return hashword((uint32_t *)str->md5, sizeof(str->md5) / 4, hash_seed);
69 }
70 
71 // data stays in hash
72 void Md5StrFree(void *s)
73 {
74 }
75 
76 void Md5StrJsonFree(void *s)
77 {
78  const Md5Type *as = s;
79  if (as->json.value) {
80  SCFree(as->json.value);
81  }
82 }
83 
84 uint32_t Md5StrJsonGetLength(void *s)
85 {
86  const Md5Type *as = s;
87  return as->json.len;
88 }
DataJsonType::len
uint16_t len
Definition: datasets-context-json.h:34
datasets-md5.h
hashword
uint32_t hashword(const uint32_t *k, size_t length, uint32_t initval)
Definition: util-hash-lookup3.c:172
Md5Type
Definition: datasets-md5.h:30
Md5Type::rep
DataRepType rep
Definition: datasets-md5.h:33
Md5Type::md5
uint8_t md5[16]
Definition: datasets-md5.h:31
Md5StrCompare
bool Md5StrCompare(void *a, void *b)
Definition: datasets-md5.c:57
datasets.h
util-print.h
Md5StrHash
uint32_t Md5StrHash(uint32_t hash_seed, void *s)
Definition: datasets-md5.c:65
Md5Type::json
DataJsonType json
Definition: datasets-md5.h:34
conf.h
suricata-common.h
datasets-context-json.h
Md5StrSet
int Md5StrSet(void *dst, void *src)
Definition: datasets-md5.c:34
util-hash-lookup3.h
DatajsonCopyJson
int DatajsonCopyJson(DataJsonType *dst, DataJsonType *src)
Definition: datasets-context-json.c:54
str
#define str(s)
Definition: suricata-common.h:308
SCFree
#define SCFree(p)
Definition: util-mem.h:61
src
uint16_t src
Definition: app-layer-dnp3.h:5
DataJsonType::value
char * value
Definition: datasets-context-json.h:33
dst
uint16_t dst
Definition: app-layer-dnp3.h:4
util-thash.h
Md5StrJsonFree
void Md5StrJsonFree(void *s)
Definition: datasets-md5.c:76
Md5StrJsonGetLength
uint32_t Md5StrJsonGetLength(void *s)
Definition: datasets-md5.c:84
Md5StrFree
void Md5StrFree(void *s)
Definition: datasets-md5.c:72
Md5StrJsonSet
int Md5StrJsonSet(void *dst, void *src)
Definition: datasets-md5.c:43