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suricata/src/util-datalink.c

74 lines
2.4 KiB
C

/* Copyright (C) 2021 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.
*/
#include "suricata-common.h"
#include "util-datalink.h"
#include "rust.h"
#include "decode.h"
int g_datalink_value = LINKTYPE_NULL;
int g_datalink_is_multiple = 0;
void DatalinkSetGlobalType(int datalink)
{
if (g_datalink_value != LINKTYPE_NULL) {
if (datalink != g_datalink_value) {
g_datalink_is_multiple = 1;
}
} else {
g_datalink_value = datalink;
}
}
inline int DatalinkGetGlobalType(void)
{
return g_datalink_value;
}
bool DatalinkHasMultipleValues(void)
{
return g_datalink_is_multiple == 1;
}
static void *datalink_value_map;
void DatalinkTableInit(void)
{
datalink_value_map = SCDatalinkInit();
SCDatalinkValueNameInsert(datalink_value_map, LINKTYPE_NULL, "NULL");
SCDatalinkValueNameInsert(datalink_value_map, LINKTYPE_ETHERNET, "EN10MB");
SCDatalinkValueNameInsert(datalink_value_map, LINKTYPE_LINUX_SLL, "LINUX_SLL");
SCDatalinkValueNameInsert(datalink_value_map, LINKTYPE_PPP, "PPP");
SCDatalinkValueNameInsert(datalink_value_map, LINKTYPE_RAW, "RAW");
SCDatalinkValueNameInsert(datalink_value_map, LINKTYPE_RAW2, "RAW2");
SCDatalinkValueNameInsert(datalink_value_map, LINKTYPE_GRE_OVER_IP, "GRE_RAW");
SCDatalinkValueNameInsert(datalink_value_map, LINKTYPE_NULL, "NULL");
SCDatalinkValueNameInsert(datalink_value_map, LINKTYPE_CISCO_HDLC, "C_HDLC");
SCDatalinkValueNameInsert(datalink_value_map, LINKTYPE_IPV4, "IPv4");
SCDatalinkValueNameInsert(datalink_value_map, LINKTYPE_IPV6, "IPv6");
}
void DatalinkTableDeinit(void)
{
SCDatalinkDeInit(datalink_value_map);
}
const char *DatalinkValueToName(int datalink_value)
{
return SCDatalinkValueToName(datalink_value_map, datalink_value);
}