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nfqws: packet delay support

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bol-van
2024-04-20 20:59:45 +03:00
parent 2e6ddc4756
commit 51c0d1ce3c
26 changed files with 975 additions and 527 deletions
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12
nfq/conntrack.h
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@@ -14,6 +14,8 @@
#include <netinet/tcp.h>
#include <netinet/udp.h>
#include "packet_queue.h"
//#define HASH_BLOOM 20
#define HASH_NONFATAL_OOM 1
#undef HASH_FUNCTION
@@ -63,7 +65,7 @@ typedef struct
uint8_t scale_orig, scale_reply; // last seen window scale factor. SCALE_NONE if none
uint8_t req_retrans_counter; // number of request retransmissions
bool req_seq_start_present, req_seq_present;
bool req_seq_present,req_seq_finalized;
uint32_t req_seq_start,req_seq_end; // sequence interval of the request (to track retransmissions)
uint8_t autottl;
@@ -71,10 +73,11 @@ typedef struct
bool b_cutoff; // mark for deletion
bool b_wssize_cutoff, b_desync_cutoff;
t_reassemble reasm_orig;
t_l7proto l7proto;
char *hostname;
t_reassemble reasm_orig;
struct rawpacket_tailhead delayed;
} t_ctrack;
typedef struct
@@ -94,6 +97,8 @@ typedef struct
void ConntrackPoolInit(t_conntrack *p, time_t purge_interval, uint32_t timeout_syn, uint32_t timeout_established, uint32_t timeout_fin, uint32_t timeout_udp);
void ConntrackPoolDestroy(t_conntrack *p);
bool ConntrackPoolFeed(t_conntrack *p, const struct ip *ip, const struct ip6_hdr *ip6, const struct tcphdr *tcphdr, const struct udphdr *udphdr, size_t len_payload, t_ctrack **ctrack, bool *bReverse);
// do not create, do not update. only find existing
bool ConntrackPoolDoubleSearch(t_conntrack *p, const struct ip *ip, const struct ip6_hdr *ip6, const struct tcphdr *tcphdr, const struct udphdr *udphdr, t_ctrack **ctrack, bool *bReverse);
bool ConntrackPoolDrop(t_conntrack *p, const struct ip *ip, const struct ip6_hdr *ip6, const struct tcphdr *tcphdr, const struct udphdr *udphdr);
void CaonntrackExtractConn(t_conn *c, bool bReverse, const struct ip *ip, const struct ip6_hdr *ip6, const struct tcphdr *tcphdr, const struct udphdr *udphdr);
void ConntrackPoolDump(const t_conntrack *p);
@@ -101,6 +106,7 @@ void ConntrackPoolPurge(t_conntrack *p);
void ConntrackClearHostname(t_ctrack *track);
bool ReasmInit(t_reassemble *reasm, size_t size_requested, uint32_t seq_start);
bool ReasmResize(t_reassemble *reasm, size_t new_size);
void ReasmClear(t_reassemble *reasm);
// false means reassemble session has failed and we should ReasmClear() it
bool ReasmFeed(t_reassemble *reasm, uint32_t seq, const void *payload, size_t len);