snort-2.9.17.tar.gz: .../snort_stream_tcp.h

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Member "snort-2.9.17/src/preprocessors/Stream6/snort_stream_tcp.h" (16 Oct 2020, 6004 Bytes) of package /linux/misc/snort-2.9.17.tar.gz:

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2.9.16.1_vs_2.9.17.

1 /**************************************************************************** 2 * 3 * Copyright (C) 2014-2020 Cisco and/or its affiliates. All rights reserved. 4 * Copyright (C) 2004-2013 Sourcefire, Inc. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License Version 2 as 8 * published by the Free Software Foundation. You may not use, modify or 9 * distribute this program under any other version of the GNU General 10 * Public License. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 20 * 21 ****************************************************************************/ 22 23 #ifndef _STREAM_TCP_H_ 24 #define _STREAM_TCP_H_ 25 26 #include "session_common.h" 27 #include "stream_common.h" 28 #include "sfPolicy.h" 29 30 extern uint32_t xtradata_func_count; 31 extern LogFunction xtradata_map[LOG_FUNC_MAX]; 32 extern LogExtraData extra_data_log; 33 extern void *extra_data_config; 34 35 void StreamCleanTcp(void); 36 void StreamResetTcp(void); 37 void StreamInitTcp(void); 38 void StreamTcpRegisterPreprocProfiles(void); 39 void StreamTcpRegisterRuleOptions(struct _SnortConfig *); 40 void StreamTcpInitFlushPoints(void); 41 int StreamVerifyTcpConfig(struct _SnortConfig *, StreamTcpConfig *, tSfPolicyId); 42 void StreamTcpPolicyInit(struct _SnortConfig *, StreamTcpConfig *, char *); 43 int StreamProcessTcp(Packet *, SessionControlBlock *, 44 StreamTcpPolicy *, SessionKey *); 45 int StreamFlushListener(Packet *p, SessionControlBlock *scb); 46 int StreamFlushTalker(Packet *p, SessionControlBlock *scb); 47 int StreamFlushClient(Packet *p, SessionControlBlock *scb); 48 int StreamFlushServer(Packet *p, SessionControlBlock *scb); 49 void TcpUpdateDirection(SessionControlBlock *ssn, char dir, 50 sfaddr_t* ip, uint16_t port); 51 void StreamTcpSessionClear(Packet *p); 52 SessionControlBlock *GetLWTcpSession(const SessionKey *key); 53 int GetTcpRebuiltPackets(Packet *p, SessionControlBlock *ssn, 54 PacketIterator callback, void *userdata); 55 int GetTcpStreamSegments(Packet *p, SessionControlBlock *ssn, 56 StreamSegmentIterator callback, void *userdata); 57 int StreamAddSessionAlertTcp(SessionControlBlock *scb, Packet *p, uint32_t gid, uint32_t sid); 58 int StreamCheckSessionAlertTcp(SessionControlBlock *scb, Packet *p, uint32_t gid, uint32_t sid); 59 int StreamUpdateSessionAlertTcp(SessionControlBlock *scb, Packet *p, uint32_t gid, uint32_t sid, uint32_t event_id, uint32_t event_second); 60 void StreamSetExtraDataTcp(SessionControlBlock*, Packet*, uint32_t flag); 61 void StreamClearExtraDataTcp(SessionControlBlock*, Packet*, uint32_t flag); 62 char StreamGetReassemblyDirectionTcp(SessionControlBlock *scb); 63 uint32_t StreamGetFlushPointTcp(SessionControlBlock *scb, char dir); 64 void StreamSetFlushPointTcp(SessionControlBlock *scb, char dir, uint32_t flush_point); 65 char StreamSetReassemblyTcp(SessionControlBlock *scb, uint8_t flush_policy, char dir, char flags); 66 char StreamGetReassemblyFlushPolicyTcp(SessionControlBlock *scb, char dir); 67 char StreamIsStreamSequencedTcp(SessionControlBlock *scb, char dir); 68 int StreamMissingInReassembledTcp(SessionControlBlock *scb, char dir); 69 char StreamPacketsMissingTcp(SessionControlBlock *scb, char dir); 70 void s5TcpSetPortFilterStatus(struct _SnortConfig *sc, 71 unsigned short port, uint16_t status, tSfPolicyId policyId, int parsing ); 72 void s5TcpUnsetPortFilterStatus( struct _SnortConfig *sc, unsigned short port, uint16_t status, 73 tSfPolicyId policyId, int parsing ); 74 int s5TcpGetPortFilterStatus( struct _SnortConfig *sc, unsigned short port, tSfPolicyId policyId, int parsing ); 75 void s5TcpSetSynSessionStatus(struct _SnortConfig *sc, uint16_t status, tSfPolicyId policyId, int parsing); 76 void s5TcpUnsetSynSessionStatus(struct _SnortConfig *sc, uint16_t status, tSfPolicyId policyId, int parsing); 77 void StreamTcpConfigFree(StreamTcpConfig *); 78 void **StreamGetPAFUserDataTcp(SessionControlBlock*, bool to_server, uint8_t id); 79 bool StreamIsPafActiveTcp(SessionControlBlock*, bool to_server); 80 bool StreamActivatePafTcp (SessionControlBlock *scb, int dir, int16_t service_port, uint8_t type); 81 void StreamResetPolicyTcp(SessionControlBlock*, int dir, uint16_t policy, uint16_t mss); 82 void StreamSetSessionDecryptedTcp( SessionControlBlock *scb, bool enable); 83 bool StreamIsSessionDecryptedTcp( SessionControlBlock *scb ); 84 85 uint32_t StreamGetTcpPrunes(void); 86 void StreamResetTcpPrunes(void); 87 void enableRegisteredPortsForReassembly( struct _SnortConfig *sc ); 88 uint32_t StreamGetPreprocFlagsTcp(SessionControlBlock *scb); 89 90 #ifdef NORMALIZER 91 void Stream_PrintNormalizationStats(void); 92 void Stream_ResetNormalizationStats(void); 93 #endif 94 95 void StreamPostConfigTcp(struct _SnortConfig *sc, void*); 96 97 void registerPortForReassembly( char *network, uint16_t port, int reassembly_direction ); 98 void unregisterPortForReassembly( char *network, uint16_t port, int reassembly_direction ); 99 Packet* getWirePacketTcp(); 100 uint8_t getFlushPolicyDirTcp(); 101 bool StreamIsSessionHttp2Tcp( SessionControlBlock *scb ); 102 void StreamSetSessionHttp2Tcp( SessionControlBlock *scb ); 103 bool StreamIsSessionHttp2UpgTcp( SessionControlBlock *scb ); 104 void StreamSetSessionHttp2UpgTcp( SessionControlBlock *scb ); 105 106 void SessionTCPReload(uint32_t max_sessions, uint16_t pruningTimeout, uint16_t nominalTimeout); 107 unsigned SessionTCPReloadAdjust(unsigned maxWork); 108 109 void SetFTPFileLocation(void *scbptr ,bool flush); 110 111 void set_service_based_flush_policy(SessionControlBlock *scb); 112 113 #ifdef HAVE_DAQ_DECRYPTED_SSL 114 int StreamSimulatePeerTcpAckp( SessionControlBlock *scb, uint8_t dir, uint32_t tcp_payload_len ); 115 #endif 116 117 size_t get_tcp_used_mempool(); 118 119 #endif /* STREAM_TCP_H_ */