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Diffstat (limited to 'VNFs/DPPD-PROX/tools/flow_extract/pcappkt.hpp')
| -rw-r--r-- | VNFs/DPPD-PROX/tools/flow_extract/pcappkt.hpp | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/VNFs/DPPD-PROX/tools/flow_extract/pcappkt.hpp b/VNFs/DPPD-PROX/tools/flow_extract/pcappkt.hpp new file mode 100644 index 00000000..e437c790 --- /dev/null +++ b/VNFs/DPPD-PROX/tools/flow_extract/pcappkt.hpp @@ -0,0 +1,104 @@ +/* +// Copyright (c) 2010-2017 Intel Corporation +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +*/ + +#ifndef _PCAPPKT_H_ +#define _PCAPPKT_H_ + +#include <inttypes.h> +#include <pcap.h> +#include <string> +#include <cstring> + +using namespace std; + +struct pkt_tuple { + uint32_t src_addr; + uint32_t dst_addr; + uint8_t proto_id; + uint16_t src_port; + uint16_t dst_port; + bool operator!=(const pkt_tuple& other) const + { + return src_addr != other.src_addr || + dst_addr != other.dst_addr || + proto_id != other.proto_id || + src_port != other.src_port || + dst_port != other.dst_port; + } + bool operator==(const pkt_tuple& other) const + { + return src_addr == other.src_addr && + dst_addr == other.dst_addr && + proto_id == other.proto_id && + src_port == other.src_port && + dst_port == other.dst_port; + } + friend ostream& operator<<(ostream& stream, const pkt_tuple &other); + struct pkt_tuple flip() const + { + struct pkt_tuple ret; + + ret = *this; + ret.src_addr = dst_addr; + ret.src_port = dst_port; + ret.dst_addr = src_addr; + ret.dst_port = src_port; + return ret; + } + +} __attribute__((packed)); + +class Allocator; + +class PcapPkt { + friend class PcapReader; +public: + struct tcp_hdr { + uint16_t src_port; /**< TCP source port. */ + uint16_t dst_port; /**< TCP destination port. */ + uint32_t sent_seq; /**< TX data sequence number. */ + uint32_t recv_ack; /**< RX data acknowledgement sequence number. */ + uint8_t data_off; /**< Data offset. */ + uint8_t tcp_flags; /**< TCP flags */ + uint16_t rx_win; /**< RX flow control window. */ + uint16_t cksum; /**< TCP checksum. */ + uint16_t tcp_urp; /**< TCP urgent pointer, if any. */ + } __attribute__((__packed__)); + + static Allocator *allocator; + enum L4Proto {PROTO_TCP, PROTO_UDP}; + PcapPkt(); + void* operator new(size_t size); + static void operator delete(void *pointer); + PcapPkt(const PcapPkt& other); + PcapPkt(uint8_t *mem); + void toMem(uint8_t *mem) const; + void fromMem(uint8_t *mem); + void toFile(ofstream *file) const; + size_t memSize() const; + const struct timeval &ts() const {return header.ts;} + const uint16_t len() const {return header.len;} + pkt_tuple parsePkt(const uint8_t **l4_hdr = NULL, uint16_t *hdr_len = NULL, const uint8_t **l5 = NULL, uint32_t *l5_len = NULL) const; + const struct pcap_pkthdr &hdr() const {return header;} + const uint8_t *payload() const {return buf;} + enum L4Proto getProto() const; + ~PcapPkt(); +private: + struct pcap_pkthdr header; + uint8_t *buf; +}; + +#endif /* _PCAPPKT_H_ */ |