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nfqws: extend conntrack

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bol-van
2021-03-19 15:39:32 +03:00
parent 5e1adaa348
commit 5ddc0aa01b
5 changed files with 57 additions and 21 deletions
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8
nfq/darkmagic.h
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@@ -19,12 +19,15 @@ uint32_t net32_add(uint32_t netorder_value, uint32_t cpuorder_increment);
#define TCP_FOOL_TS 4
#define TCP_FOOL_BADSEQ 8
#define SCALE_NONE ((uint8_t)-1)
// seq and wsize have network byte order
bool prepare_tcp_segment4(
const struct sockaddr_in *src, const struct sockaddr_in *dst,
uint8_t tcp_flags,
uint32_t seq, uint32_t ack_seq,
uint16_t wsize,
uint8_t scale_factor,
uint32_t *timestamps,
uint8_t ttl,
uint8_t fooling,
@@ -35,6 +38,7 @@ bool prepare_tcp_segment6(
uint8_t tcp_flags,
uint32_t seq, uint32_t ack_seq,
uint16_t wsize,
uint8_t scale_factor,
uint32_t *timestamps,
uint8_t ttl,
uint8_t fooling,
@@ -45,6 +49,7 @@ bool prepare_tcp_segment(
uint8_t tcp_flags,
uint32_t seq, uint32_t ack_seq,
uint16_t wsize,
uint8_t scale_factor,
uint32_t *timestamps,
uint8_t ttl,
uint8_t fooling,
@@ -54,6 +59,7 @@ bool prepare_tcp_segment(
void extract_endpoints(const struct ip *ip,const struct ip6_hdr *ip6hdr,const struct tcphdr *tcphdr, struct sockaddr_storage *src, struct sockaddr_storage *dst);
uint8_t *tcp_find_option(struct tcphdr *tcp, uint8_t kind);
uint32_t *tcp_find_timestamps(struct tcphdr *tcp);
uint8_t tcp_find_scale_factor(const struct tcphdr *tcp);
// auto creates internal socket and uses it for subsequent calls
bool rawsend(const struct sockaddr* dst,uint32_t fwmark,const void *data,size_t len);
@@ -77,6 +83,6 @@ void proto_skip_ipv6(uint8_t **data, size_t *len, uint8_t *proto_type);
bool tcp_synack_segment(const struct tcphdr *tcphdr);
bool tcp_syn_segment(const struct tcphdr *tcphdr);
bool tcp_ack_segment(const struct tcphdr *tcphdr);
// scale_factor=-1 - do not change
// scale_factor=SCALE_NONE - do not change
void tcp_rewrite_wscale(struct tcphdr *tcp, uint8_t scale_factor);
void tcp_rewrite_winsize(struct tcphdr *tcp, uint16_t winsize, uint8_t scale_factor);