From 8879b125d26e8db1a5633de5a9c692eb2d1c4f83 Mon Sep 17 00:00:00 2001 From: Ashlee Young Date: Wed, 9 Sep 2015 22:21:41 -0700 Subject: suricata checkin based on commit id a4bce14770beee46a537eda3c3f6e8e8565d5d0a Change-Id: I9a214fa0ee95e58fc640e50bd604dac7f42db48f --- framework/src/suricata/src/decode-raw.c | 232 ++++++++++++++++++++++++++++++++ 1 file changed, 232 insertions(+) create mode 100644 framework/src/suricata/src/decode-raw.c (limited to 'framework/src/suricata/src/decode-raw.c') diff --git a/framework/src/suricata/src/decode-raw.c b/framework/src/suricata/src/decode-raw.c new file mode 100644 index 00000000..22e1b9e1 --- /dev/null +++ b/framework/src/suricata/src/decode-raw.c @@ -0,0 +1,232 @@ +/* Copyright (C) 2007-2013 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 William Metcalf + * + * Decode RAW + */ + +#include "suricata-common.h" +#include "decode.h" +#include "decode-raw.h" +#include "decode-events.h" + +#include "util-unittest.h" +#include "util-debug.h" + +#include "pkt-var.h" +#include "util-profiling.h" +#include "host.h" + + +int DecodeRaw(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p, uint8_t *pkt, uint16_t len, PacketQueue *pq) +{ + StatsIncr(tv, dtv->counter_raw); + + /* If it is ipv4 or ipv6 it should at least be the size of ipv4 */ + if (unlikely(len < IPV4_HEADER_LEN)) { + ENGINE_SET_INVALID_EVENT(p, IPV4_PKT_TOO_SMALL); + return TM_ECODE_FAILED; + } + + if (IP_GET_RAW_VER(pkt) == 4) { + SCLogDebug("IPV4 Packet"); + DecodeIPV4(tv, dtv, p, GET_PKT_DATA(p), GET_PKT_LEN(p), pq); + } else if (IP_GET_RAW_VER(pkt) == 6) { + SCLogDebug("IPV6 Packet"); + DecodeIPV6(tv, dtv, p, GET_PKT_DATA(p), GET_PKT_LEN(p), pq); + } else { + SCLogDebug("Unknown ip version %" PRIu8 "", IP_GET_RAW_VER(pkt)); + ENGINE_SET_EVENT(p,IPRAW_INVALID_IPV); + } + return TM_ECODE_OK; +} + +#ifdef UNITTESTS +#include "flow.h" +#include "flow-util.h" + +/** DecodeRawtest01 + * \brief Valid Raw packet + * \retval 0 Expected test value + */ +static int DecodeRawTest01 (void) +{ + + /* IPV6/TCP/no eth header */ + uint8_t raw_ip[] = { + 0x60, 0x00, 0x00, 0x00, 0x00, 0x28, 0x06, 0x40, + 0x20, 0x01, 0x06, 0x18, 0x04, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x51, 0x99, 0xcc, 0x70, + 0x20, 0x01, 0x06, 0x18, 0x00, 0x01, 0x80, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, + 0x8c, 0x9b, 0x00, 0x50, 0x6a, 0xe7, 0x07, 0x36, + 0x00, 0x00, 0x00, 0x00, 0xa0, 0x02, 0x16, 0x30, + 0x29, 0x9c, 0x00, 0x00, 0x02, 0x04, 0x05, 0x8c, + 0x04, 0x02, 0x08, 0x0a, 0x00, 0xdd, 0x1a, 0x39, + 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x02 }; + Packet *p = PacketGetFromAlloc(); + if (unlikely(p == NULL)) + return 0; + ThreadVars tv; + DecodeThreadVars dtv; + + memset(&dtv, 0, sizeof(DecodeThreadVars)); + memset(&tv, 0, sizeof(ThreadVars)); + + if (PacketCopyData(p, raw_ip, sizeof(raw_ip)) == -1) { + SCFree(p); + return 1; + } + + FlowInitConfig(FLOW_QUIET); + + DecodeRaw(&tv, &dtv, p, raw_ip, GET_PKT_LEN(p), NULL); + if (p->ip6h == NULL) { + printf("expected a valid ipv6 header but it was NULL: "); + FlowShutdown(); + SCFree(p); + return 1; + } + + PACKET_RECYCLE(p); + FlowShutdown(); + SCFree(p); + return 0; + +} +/** DecodeRawtest02 + * \brief Valid Raw packet + * \retval 0 Expected test value + */ +static int DecodeRawTest02 (void) +{ + + /* IPV4/TCP/no eth header */ + uint8_t raw_ip[] = { + 0x45, 0x00, 0x00, 0x30, 0x00, 0xad, 0x40, 0x00, + 0x7f, 0x06, 0xac, 0xc5, 0xc0, 0xa8, 0x67, 0x02, + 0xc0, 0xa8, 0x66, 0x02, 0x0b, 0xc7, 0x00, 0x50, + 0x1d, 0xb3, 0x12, 0x37, 0x00, 0x00, 0x00, 0x00, + 0x70, 0x02, 0x40, 0x00, 0xb8, 0xc8, 0x00, 0x00, + 0x02, 0x04, 0x05, 0xb4, 0x01, 0x01, 0x04, 0x02 }; + + Packet *p = PacketGetFromAlloc(); + if (unlikely(p == NULL)) + return 0; + ThreadVars tv; + DecodeThreadVars dtv; + + memset(&dtv, 0, sizeof(DecodeThreadVars)); + memset(&tv, 0, sizeof(ThreadVars)); + + if (PacketCopyData(p, raw_ip, sizeof(raw_ip)) == -1) { + SCFree(p); + return 1; + } + + FlowInitConfig(FLOW_QUIET); + + DecodeRaw(&tv, &dtv, p, raw_ip, GET_PKT_LEN(p), NULL); + if (p->ip4h == NULL) { + printf("expected a valid ipv4 header but it was NULL: "); + PACKET_RECYCLE(p); + FlowShutdown(); + SCFree(p); + return 1; + } + + PACKET_RECYCLE(p); + FlowShutdown(); + SCFree(p); + return 0; +} +/** DecodeRawtest03 + * \brief Valid Raw packet + * \retval 0 Expected test value + */ +static int DecodeRawTest03 (void) +{ + + /* IPV13 */ + uint8_t raw_ip[] = { + 0xdf, 0x00, 0x00, 0x3d, 0x49, 0x42, 0x40, 0x00, + 0x40, 0x06, 0xcf, 0x8a, 0x0a, 0x1f, 0x03, 0xaf, + 0x0a, 0x1f, 0x0a, 0x02, 0xa5, 0xe7, 0xde, 0xad, + 0x00, 0x0c, 0xe2, 0x0e, 0x8b, 0xfe, 0x0c, 0xe7, + 0x80, 0x18, 0x00, 0xb7, 0xaf, 0xeb, 0x00, 0x00, + 0x01, 0x01, 0x08, 0x0a, 0x00, 0x08, 0xab, 0x4f, + 0x34, 0x40, 0x67, 0x31, 0x3b, 0x63, 0x61, 0x74, + 0x20, 0x6b, 0x65, 0x79, 0x3b }; + + Packet *p = PacketGetFromAlloc(); + if (unlikely(p == NULL)) + return 0; + ThreadVars tv; + DecodeThreadVars dtv; + + memset(&dtv, 0, sizeof(DecodeThreadVars)); + memset(&tv, 0, sizeof(ThreadVars)); + + if (PacketCopyData(p, raw_ip, sizeof(raw_ip)) == -1) { + SCFree(p); + return 1; + } + + FlowInitConfig(FLOW_QUIET); + + DecodeRaw(&tv, &dtv, p, raw_ip, GET_PKT_LEN(p), NULL); + if (ENGINE_ISSET_EVENT(p,IPRAW_INVALID_IPV)) { + FlowShutdown(); + SCFree(p); + return 0; + } else { + printf("expected IPRAW_INVALID_IPV to be set but it wasn't: "); + } + PACKET_RECYCLE(p); + FlowShutdown(); + SCFree(p); + return 1; +} + +#endif /* UNITTESTS */ + +/** + * \brief Registers Raw unit tests + * \todo More Raw tests + */ +void DecodeRawRegisterTests(void) +{ +#ifdef UNITTESTS + UtRegisterTest("DecodeRawTest01", DecodeRawTest01, 0); + UtRegisterTest("DecodeRawTest02", DecodeRawTest02, 0); + UtRegisterTest("DecodeRawTest03", DecodeRawTest03, 0); +#endif /* UNITTESTS */ +} +/** + * @} + */ -- cgit 1.2.3-korg