1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
|
/* Copyright (C) 2007-2010 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program under the terms of
* the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/**
* \file
*
* \author Victor Julien <victor@inliniac.net>
*
* Print utility functions
*/
#include "suricata-common.h"
#include "util-print.h"
#include "util-error.h"
#include "util-debug.h"
/**
* \brief print a buffer as hex on a single line
*
* Prints in the format "00 AA BB"
*
* \param nbuf buffer into which the output is written
* \param offset of where to start writting into the buffer
* \param max_size the size of the output buffer
* \param buf buffer to print from
* \param buflen length of the input buffer
*/
void PrintBufferRawLineHex(char *nbuf, int *offset, int max_size, uint8_t *buf, uint32_t buflen)
{
uint32_t u = 0;
for (u = 0; u < buflen; u++) {
PrintBufferData(nbuf, offset, max_size, "%02X ", buf[u]);
}
}
/**
* \brief print a buffer as hex on a single line in to retbuf buffer
*
* Prints in the format "00 AA BB"
*
* \param retbuf pointer to the buffer which will have the result
* \param rebuflen lenght of the buffer
* \param buf buffer to print from
* \param buflen length of the input buffer
*/
void PrintRawLineHexBuf(char *retbuf, uint32_t retbuflen, uint8_t *buf, uint32_t buflen)
{
uint32_t offset = 0;
uint32_t u = 0;
for (u = 0; u < buflen; u++) {
PrintBufferData(retbuf, &offset, retbuflen, "%02X ", buf[u]);
}
}
void PrintRawJsonFp(FILE *fp, uint8_t *buf, uint32_t buflen)
{
#define BUFFER_LENGTH 2048
char nbuf[BUFFER_LENGTH] = "";
uint32_t offset = 0;
uint32_t u = 0;
for (u = 0; u < buflen; u++) {
if (buf[u] == '\\' || buf[u] == '/' || buf[u] == '\"') {
PrintBufferData(nbuf, &offset, BUFFER_LENGTH,
"\\%c", buf[u]);
} else if (isprint(buf[u])) {
PrintBufferData(nbuf, &offset, BUFFER_LENGTH,
"%c", buf[u]);
} else {
PrintBufferData(nbuf, &offset, BUFFER_LENGTH,
"\\\\x%02X", buf[u]);
}
}
fprintf(fp, "%s", nbuf);
}
void PrintRawUriFp(FILE *fp, uint8_t *buf, uint32_t buflen)
{
#define BUFFER_LENGTH 2048
char nbuf[BUFFER_LENGTH] = "";
uint32_t offset = 0;
uint32_t u = 0;
for (u = 0; u < buflen; u++) {
if (isprint(buf[u]) && buf[u] != '\"') {
PrintBufferData(nbuf, &offset, BUFFER_LENGTH,
"%c", buf[u]);
} else {
PrintBufferData(nbuf, &offset, BUFFER_LENGTH,
"\\x%02X", buf[u]);
}
}
fprintf(fp, "%s", nbuf);
}
void PrintRawUriBuf(char *retbuf, uint32_t *offset, uint32_t retbuflen,
uint8_t *buf, uint32_t buflen)
{
uint32_t u = 0;
for (u = 0; u < buflen; u++) {
if (isprint(buf[u]) && buf[u] != '\"') {
if (buf[u] == '\\') {
PrintBufferData(retbuf, offset, retbuflen,
"\\\\");
} else {
PrintBufferData(retbuf, offset, retbuflen,
"%c", buf[u]);
}
} else {
PrintBufferData(retbuf, offset, retbuflen,
"\\x%02X", buf[u]);
}
}
return;
}
void PrintRawDataFp(FILE *fp, const uint8_t *buf, uint32_t buflen)
{
int ch = 0;
uint32_t u = 0;
for (u = 0; u < buflen; u+=16) {
fprintf(fp ," %04X ", u);
for (ch = 0; (u+ch) < buflen && ch < 16; ch++) {
fprintf(fp, "%02X ", (uint8_t)buf[u+ch]);
if (ch == 7) fprintf(fp, " ");
}
if (ch == 16) fprintf(fp, " ");
else if (ch < 8) {
int spaces = (16 - ch) * 3 + 2 + 1;
int s = 0;
for ( ; s < spaces; s++) fprintf(fp, " ");
} else if(ch < 16) {
int spaces = (16 - ch) * 3 + 2;
int s = 0;
for ( ; s < spaces; s++) fprintf(fp, " ");
}
for (ch = 0; (u+ch) < buflen && ch < 16; ch++) {
fprintf(fp, "%c", isprint((uint8_t)buf[u+ch]) ? (uint8_t)buf[u+ch] : '.');
if (ch == 7) fprintf(fp, " ");
if (ch == 15) fprintf(fp, "\n");
}
}
if (ch != 16)
fprintf(fp, "\n");
}
void PrintRawDataToBuffer(uint8_t *dst_buf, uint32_t *dst_buf_offset_ptr, uint32_t dst_buf_size,
uint8_t *src_buf, uint32_t src_buf_len)
{
int ch = 0;
uint32_t u = 0;
for (u = 0; u < src_buf_len; u+=16) {
PrintBufferData((char *)dst_buf, dst_buf_offset_ptr, dst_buf_size,
" %04X ", u);
for (ch = 0; (u + ch) < src_buf_len && ch < 16; ch++) {
PrintBufferData((char *)dst_buf, dst_buf_offset_ptr, dst_buf_size,
"%02X ", (uint8_t)src_buf[u + ch]);
if (ch == 7) {
PrintBufferData((char *)dst_buf, dst_buf_offset_ptr, dst_buf_size,
" ");
}
}
if (ch == 16) {
PrintBufferData((char *)dst_buf, dst_buf_offset_ptr, dst_buf_size, " ");
} else if (ch < 8) {
int spaces = (16 - ch) * 3 + 2 + 1;
int s = 0;
for ( ; s < spaces; s++)
PrintBufferData((char *)dst_buf, dst_buf_offset_ptr, dst_buf_size, " ");
} else if(ch < 16) {
int spaces = (16 - ch) * 3 + 2;
int s = 0;
for ( ; s < spaces; s++)
PrintBufferData((char *)dst_buf, dst_buf_offset_ptr, dst_buf_size, " ");
}
for (ch = 0; (u+ch) < src_buf_len && ch < 16; ch++) {
PrintBufferData((char *)dst_buf, dst_buf_offset_ptr, dst_buf_size,
"%c",
isprint((uint8_t)src_buf[u + ch]) ? (uint8_t)src_buf[u + ch] : '.');
if (ch == 7)
PrintBufferData((char *)dst_buf, dst_buf_offset_ptr, dst_buf_size, " ");
if (ch == 15)
PrintBufferData((char *)dst_buf, dst_buf_offset_ptr, dst_buf_size, "\n");
}
}
if (ch != 16)
PrintBufferData((char *)dst_buf, dst_buf_offset_ptr, dst_buf_size, "\n");
return;
}
void PrintStringsToBuffer(uint8_t *dst_buf, uint32_t *dst_buf_offset_ptr, uint32_t dst_buf_size,
uint8_t *src_buf, uint32_t src_buf_len)
{
uint32_t ch = 0;
for (ch = 0; ch < src_buf_len; ch++) {
PrintBufferData((char *)dst_buf, dst_buf_offset_ptr, dst_buf_size,
"%c",
(isprint((uint8_t)src_buf[ch]) ||
src_buf[ch] == '\n' ||
src_buf[ch] == '\r') ? (uint8_t)src_buf[ch] : '.');
}
return;
}
#ifndef s6_addr16
# define s6_addr16 __u6_addr.__u6_addr16
#endif
static const char *PrintInetIPv6(const void *src, char *dst, socklen_t size)
{
struct in6_addr * insrc = (struct in6_addr *) src;
int i;
char s_part[6];
/* current IPv6 format is fixed size */
if (size < 8 * 5) {
SCLogWarning(SC_ERR_ARG_LEN_LONG, "Too small buffer to write IPv6 address");
return NULL;
}
memset(dst, 0, size);
for(i = 0; i < 8; i++) {
snprintf(s_part, 6, "%04x:", htons(insrc->s6_addr16[i]));
strlcat(dst, s_part, size);
}
/* suppress last ':' */
dst[strlen(dst) - 1] = 0;
return dst;
}
const char *PrintInet(int af, const void *src, char *dst, socklen_t size)
{
switch (af) {
case AF_INET:
return inet_ntop(af, src, dst, size);
case AF_INET6:
/* Format IPv6 without deleting zeroes */
return PrintInetIPv6(src, dst, size);
default:
SCLogError(SC_ERR_INVALID_VALUE, "Unsupported protocol: %d", af);
}
return NULL;
}
|
