diff options
Diffstat (limited to 'framework/src/suricata/src/decode-udp.c')
| -rw-r--r-- | framework/src/suricata/src/decode-udp.c | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/framework/src/suricata/src/decode-udp.c b/framework/src/suricata/src/decode-udp.c deleted file mode 100644 index 14ba7887..00000000 --- a/framework/src/suricata/src/decode-udp.c +++ /dev/null @@ -1,218 +0,0 @@ -/* 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. - */ - -/** - * \ingroup decode - * - * @{ - */ - - -/** - * \file - * - * \author Victor Julien <victor@inliniac.net> - * - * Decode UDP - */ - -#include "suricata-common.h" -#include "decode.h" -#include "decode-udp.h" -#include "decode-teredo.h" -#include "decode-events.h" -#include "util-unittest.h" -#include "util-debug.h" -#include "flow.h" -#include "app-layer.h" - -static int DecodeUDPPacket(ThreadVars *t, Packet *p, uint8_t *pkt, uint16_t len) -{ - if (unlikely(len < UDP_HEADER_LEN)) { - ENGINE_SET_INVALID_EVENT(p, UDP_HLEN_TOO_SMALL); - return -1; - } - - p->udph = (UDPHdr *)pkt; - - if (unlikely(len < UDP_GET_LEN(p))) { - ENGINE_SET_INVALID_EVENT(p, UDP_PKT_TOO_SMALL); - return -1; - } - - if (unlikely(len != UDP_GET_LEN(p))) { - ENGINE_SET_INVALID_EVENT(p, UDP_HLEN_INVALID); - return -1; - } - - SET_UDP_SRC_PORT(p,&p->sp); - SET_UDP_DST_PORT(p,&p->dp); - - p->payload = pkt + UDP_HEADER_LEN; - p->payload_len = len - UDP_HEADER_LEN; - - p->proto = IPPROTO_UDP; - - return 0; -} - -int DecodeUDP(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p, uint8_t *pkt, uint16_t len, PacketQueue *pq) -{ - StatsIncr(tv, dtv->counter_udp); - - if (unlikely(DecodeUDPPacket(tv, p,pkt,len) < 0)) { - p->udph = NULL; - return TM_ECODE_FAILED; - } - - SCLogDebug("UDP sp: %" PRIu32 " -> dp: %" PRIu32 " - HLEN: %" PRIu32 " LEN: %" PRIu32 "", - UDP_GET_SRC_PORT(p), UDP_GET_DST_PORT(p), UDP_HEADER_LEN, p->payload_len); - - if (unlikely(DecodeTeredo(tv, dtv, p, p->payload, p->payload_len, pq) == TM_ECODE_OK)) { - /* Here we have a Teredo packet and don't need to handle app - * layer */ - FlowHandlePacket(tv, dtv, p); - return TM_ECODE_OK; - } - - /* Flow is an integral part of us */ - FlowHandlePacket(tv, dtv, p); - - /* handle the app layer part of the UDP packet payload */ - if (unlikely(p->flow != NULL)) { - AppLayerHandleUdp(tv, dtv->app_tctx, p, p->flow); - } - - return TM_ECODE_OK; -} - -#ifdef UNITTESTS -static int UDPV4CalculateValidChecksumtest01(void) -{ - uint16_t csum = 0; - - uint8_t raw_ipshdr[] = { - 0xd0, 0x43, 0xdc, 0xdc, 0xc0, 0xa8, 0x01, 0x3}; - - uint8_t raw_udp[] = { - 0x00, 0x35, 0xcf, 0x34, 0x00, 0x55, 0x6c, 0xe0, - 0x83, 0xfc, 0x81, 0x80, 0x00, 0x01, 0x00, 0x01, - 0x00, 0x00, 0x00, 0x00, 0x07, 0x70, 0x61, 0x67, - 0x65, 0x61, 0x64, 0x32, 0x11, 0x67, 0x6f, 0x6f, - 0x67, 0x6c, 0x65, 0x73, 0x79, 0x6e, 0x64, 0x69, - 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x03, 0x63, - 0x6f, 0x6d, 0x00, 0x00, 0x1c, 0x00, 0x01, 0xc0, - 0x0c, 0x00, 0x05, 0x00, 0x01, 0x00, 0x01, 0x4b, - 0x50, 0x00, 0x12, 0x06, 0x70, 0x61, 0x67, 0x65, - 0x61, 0x64, 0x01, 0x6c, 0x06, 0x67, 0x6f, 0x6f, - 0x67, 0x6c, 0x65, 0xc0, 0x26}; - - csum = *( ((uint16_t *)raw_udp) + 3); - - return (csum == UDPV4CalculateChecksum((uint16_t *) raw_ipshdr, - (uint16_t *)raw_udp, - sizeof(raw_udp))); -} - -static int UDPV4CalculateInvalidChecksumtest02(void) -{ - uint16_t csum = 0; - - uint8_t raw_ipshdr[] = { - 0xd0, 0x43, 0xdc, 0xdc, 0xc0, 0xa8, 0x01, 0x3}; - - uint8_t raw_udp[] = { - 0x00, 0x35, 0xcf, 0x34, 0x00, 0x55, 0x6c, 0xe0, - 0x83, 0xfc, 0x81, 0x80, 0x00, 0x01, 0x00, 0x01, - 0x00, 0x00, 0x00, 0x00, 0x07, 0x70, 0x61, 0x67, - 0x65, 0x61, 0x64, 0x32, 0x11, 0x67, 0x6f, 0x6f, - 0x67, 0x6c, 0x65, 0x73, 0x79, 0x6e, 0x64, 0x69, - 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x03, 0x63, - 0x6f, 0x6d, 0x00, 0x00, 0x1c, 0x00, 0x01, 0xc0, - 0x0c, 0x00, 0x05, 0x00, 0x01, 0x00, 0x01, 0x4b, - 0x50, 0x00, 0x12, 0x06, 0x70, 0x61, 0x67, 0x65, - 0x61, 0x64, 0x01, 0x6c, 0x06, 0x67, 0x6f, 0x6f, - 0x67, 0x6c, 0x65, 0xc0, 0x27}; - - csum = *( ((uint16_t *)raw_udp) + 3); - - return (csum == UDPV4CalculateChecksum((uint16_t *) raw_ipshdr, - (uint16_t *)raw_udp, - sizeof(raw_udp))); -} - -static int UDPV6CalculateValidChecksumtest03(void) -{ - uint16_t csum = 0; - - static uint8_t raw_ipv6[] = { - 0x00, 0x60, 0x97, 0x07, 0x69, 0xea, 0x00, 0x00, - 0x86, 0x05, 0x80, 0xda, 0x86, 0xdd, 0x60, 0x00, - 0x00, 0x00, 0x00, 0x14, 0x11, 0x02, 0x3f, 0xfe, - 0x05, 0x07, 0x00, 0x00, 0x00, 0x01, 0x02, 0x00, - 0x86, 0xff, 0xfe, 0x05, 0x80, 0xda, 0x3f, 0xfe, - 0x05, 0x01, 0x04, 0x10, 0x00, 0x00, 0x02, 0xc0, - 0xdf, 0xff, 0xfe, 0x47, 0x03, 0x3e, 0xa0, 0x75, - 0x82, 0xa0, 0x00, 0x14, 0x1a, 0xc3, 0x06, 0x02, - 0x00, 0x00, 0xf9, 0xc8, 0xe7, 0x36, 0x57, 0xb0, - 0x09, 0x00}; - - csum = *( ((uint16_t *)(raw_ipv6 + 60))); - - return (csum == UDPV6CalculateChecksum((uint16_t *)(raw_ipv6 + 14 + 8), - (uint16_t *)(raw_ipv6 + 54), 20)); -} - -static int UDPV6CalculateInvalidChecksumtest04(void) -{ - uint16_t csum = 0; - - static uint8_t raw_ipv6[] = { - 0x00, 0x60, 0x97, 0x07, 0x69, 0xea, 0x00, 0x00, - 0x86, 0x05, 0x80, 0xda, 0x86, 0xdd, 0x60, 0x00, - 0x00, 0x00, 0x00, 0x14, 0x11, 0x02, 0x3f, 0xfe, - 0x05, 0x07, 0x00, 0x00, 0x00, 0x01, 0x02, 0x00, - 0x86, 0xff, 0xfe, 0x05, 0x80, 0xda, 0x3f, 0xfe, - 0x05, 0x01, 0x04, 0x10, 0x00, 0x00, 0x02, 0xc0, - 0xdf, 0xff, 0xfe, 0x47, 0x03, 0x3e, 0xa0, 0x75, - 0x82, 0xa0, 0x00, 0x14, 0x1a, 0xc3, 0x06, 0x02, - 0x00, 0x00, 0xf9, 0xc8, 0xe7, 0x36, 0x57, 0xb0, - 0x09, 0x01}; - - csum = *( ((uint16_t *)(raw_ipv6 + 60))); - - return (csum == UDPV6CalculateChecksum((uint16_t *)(raw_ipv6 + 14 + 8), - (uint16_t *)(raw_ipv6 + 54), 20)); -} -#endif /* UNITTESTS */ - -void DecodeUDPV4RegisterTests(void) -{ -#ifdef UNITTESTS - UtRegisterTest("UDPV4CalculateValidChecksumtest01", - UDPV4CalculateValidChecksumtest01, 1); - UtRegisterTest("UDPV4CalculateInvalidChecksumtest02", - UDPV4CalculateInvalidChecksumtest02, 0); - UtRegisterTest("UDPV6CalculateValidChecksumtest03", - UDPV6CalculateValidChecksumtest03, 1); - UtRegisterTest("UDPV6CalculateInvalidChecksumtest04", - UDPV6CalculateInvalidChecksumtest04, 0); -#endif /* UNITTESTS */ -} -/** - * @} - */ |