23352517976

Committed 20 Mar 2026 04:32PM UTC coverage: 65.866% (-13.4%) from 79.315%

Build # 23352517976

Build Type

Pull #15072

github

Committed by

web-flow

Commit Message

Merge abcd1935f into 6587e363a

Pull Request Pull Request #15072: Stack 8001 v16.3

Coverage Stats

41 of 70 new or added lines in 10 files covered. (58.57%)

18894 existing lines in 577 files now uncovered.

143735 of 218225 relevant lines covered (65.87%)

4342818.61 hits per line

Source File
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64.58

/src/decode-null.c

/* Copyright (C) 2015-2021 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.
 */

/**
 * \ingroup decode
 *
 * @{
 */

/**
 * \file
 *
 * \author Victor Julien <victor@inliniac.net>
 *
 * Decode linktype null:
 * http://www.tcpdump.org/linktypes.html
 */

#include "suricata-common.h"
#include "decode.h"
#include "decode-raw.h"
#include "decode-events.h"

#include "util-validate.h"
#include "util-unittest.h"
#include "util-debug.h"

#define HDR_SIZE 4

#define AF_INET6_BSD     24
#define AF_INET6_FREEBSD 28
#define AF_INET6_DARWIN  30
#define AF_INET6_LINUX   10
#define AF_INET6_SOLARIS 26
#define AF_INET6_WINSOCK 23

int DecodeNull(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p,
        const uint8_t *pkt, uint32_t len)
{
    DEBUG_VALIDATE_BUG_ON(pkt == NULL);

    StatsCounterIncr(&tv->stats, dtv->counter_null);

    if (unlikely(len < HDR_SIZE)) {
        ENGINE_SET_INVALID_EVENT(p, LTNULL_PKT_TOO_SMALL);
        return TM_ECODE_FAILED;
    }

    if (unlikely(GET_PKT_LEN(p) > HDR_SIZE + USHRT_MAX)) {
        return TM_ECODE_FAILED;
    }
#if __BYTE_ORDER__ == __BIG_ENDIAN
    uint32_t type = pkt[0] | pkt[1] << 8 | pkt[2] << 16 | pkt[3] << 24;
#else
    uint32_t type = *((uint32_t *)pkt);
#endif
    switch(type) {
        case AF_INET:
            SCLogDebug("IPV4 Packet");
            if (GET_PKT_LEN(p) - HDR_SIZE > USHRT_MAX) {
                return TM_ECODE_FAILED;
            }
            DecodeIPV4(
                    tv, dtv, p, GET_PKT_DATA(p) + HDR_SIZE, (uint16_t)(GET_PKT_LEN(p) - HDR_SIZE));
            break;
        case AF_INET6_BSD:
        case AF_INET6_FREEBSD:
        case AF_INET6_DARWIN:
        case AF_INET6_LINUX:
        case AF_INET6_SOLARIS:
        case AF_INET6_WINSOCK:
            SCLogDebug("IPV6 Packet");
            if (GET_PKT_LEN(p) - HDR_SIZE > USHRT_MAX) {
                return TM_ECODE_FAILED;
            }
            DecodeIPV6(
                    tv, dtv, p, GET_PKT_DATA(p) + HDR_SIZE, (uint16_t)(GET_PKT_LEN(p) - HDR_SIZE));
            break;
        default:
            SCLogDebug("Unknown Null packet type version %" PRIu32 "", type);
            ENGINE_SET_EVENT(p, LTNULL_UNSUPPORTED_TYPE);
            break;
    }
    return TM_ECODE_OK;
}

/**
 * @}
 */

1	/* Copyright (C) 2015-2021 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	* \ingroup decode
20	*
21	* @{
22	*/
23
24	/**
25	* \file
26	*
27	* \author Victor Julien <victor@inliniac.net>
28	*
29	* Decode linktype null:
30	* http://www.tcpdump.org/linktypes.html
31	*/
32
33	#include "suricata-common.h"
34	#include "decode.h"
35	#include "decode-raw.h"
36	#include "decode-events.h"
37
38	#include "util-validate.h"
39	#include "util-unittest.h"
40	#include "util-debug.h"
41
42	#define HDR_SIZE 4	21,255✔
43
UNCOV 44	#define AF_INET6_BSD 24	×
UNCOV 45	#define AF_INET6_FREEBSD 28	×
46	#define AF_INET6_DARWIN 30	118✔
47	#define AF_INET6_LINUX 10	118✔
48	#define AF_INET6_SOLARIS 26	118✔
49	#define AF_INET6_WINSOCK 23	118✔
50
51	int DecodeNull(ThreadVars tv, DecodeThreadVars dtv, Packet *p,
52	const uint8_t *pkt, uint32_t len)
53	{	7,085✔
54	DEBUG_VALIDATE_BUG_ON(pkt == NULL);	7,085✔
55
56	StatsCounterIncr(&tv->stats, dtv->counter_null);	7,085✔
57
58	if (unlikely(len < HDR_SIZE)) {	7,085✔
UNCOV 59	ENGINE_SET_INVALID_EVENT(p, LTNULL_PKT_TOO_SMALL);	×
UNCOV 60	return TM_ECODE_FAILED;	×
UNCOV 61	}	×
62
63	if (unlikely(GET_PKT_LEN(p) > HDR_SIZE + USHRT_MAX)) {	7,085✔
UNCOV 64	return TM_ECODE_FAILED;	×
UNCOV 65	}	×
66	#if __BYTE_ORDER__ == __BIG_ENDIAN
67	uint32_t type = pkt[0] \| pkt[1] << 8 \| pkt[2] << 16 \| pkt[3] << 24;
68	#else
69	uint32_t type = ((uint32_t )pkt);	7,085✔
70	#endif	7,085✔
71	switch(type) {	7,085✔
72	case AF_INET:	6,967✔
73	SCLogDebug("IPV4 Packet");	6,967✔
74	if (GET_PKT_LEN(p) - HDR_SIZE > USHRT_MAX) {	6,967✔
75	return TM_ECODE_FAILED;	×
76	}	×
77	DecodeIPV4(	6,967✔
78	tv, dtv, p, GET_PKT_DATA(p) + HDR_SIZE, (uint16_t)(GET_PKT_LEN(p) - HDR_SIZE));	6,967✔
79	break;	6,967✔
UNCOV 80	case AF_INET6_BSD:	×
UNCOV 81	case AF_INET6_FREEBSD:	×
82	case AF_INET6_DARWIN:	118✔
83	case AF_INET6_LINUX:	118✔
84	case AF_INET6_SOLARIS:	118✔
85	case AF_INET6_WINSOCK:	118✔
86	SCLogDebug("IPV6 Packet");	118✔
87	if (GET_PKT_LEN(p) - HDR_SIZE > USHRT_MAX) {	118✔
88	return TM_ECODE_FAILED;	×
89	}	×
90	DecodeIPV6(	118✔
91	tv, dtv, p, GET_PKT_DATA(p) + HDR_SIZE, (uint16_t)(GET_PKT_LEN(p) - HDR_SIZE));	118✔
92	break;	118✔
UNCOV 93	default:	×
UNCOV 94	SCLogDebug("Unknown Null packet type version %" PRIu32 "", type);	×
UNCOV 95	ENGINE_SET_EVENT(p, LTNULL_UNSUPPORTED_TYPE);	×
UNCOV 96	break;	×
97	}	7,085✔
98	return TM_ECODE_OK;	7,085✔
99	}	7,085✔
100
101	/**
102	* @}
103	*/

OISF / suricata / 23352517976

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