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tpws: multisplit

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bol-van
2024-11-13 22:05:06 +03:00
parent ef9f9ae428
commit 46d31003e2
11 changed files with 532 additions and 164 deletions
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38
tpws/protocol.h
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@@ -4,6 +4,40 @@
#include <stdint.h>
#include <stdbool.h>
typedef enum {UNKNOWN=0, HTTP, TLS, QUIC, WIREGUARD, DHT} t_l7proto;
#define L7_PROTO_HTTP 0x00000001
#define L7_PROTO_TLS 0x00000002
#define L7_PROTO_QUIC 0x00000004
#define L7_PROTO_WIREGUARD 0x00000008
#define L7_PROTO_DHT 0x00000010
#define L7_PROTO_UNKNOWN 0x80000000
const char *l7proto_str(t_l7proto l7);
bool l7_proto_match(t_l7proto l7proto, uint32_t filter_l7);
// pos markers
#define PM_ABS 0
#define PM_HOST 1
#define PM_HOST_END 2
#define PM_HOST_SLD 3
#define PM_HOST_MIDSLD 4
#define PM_HOST_ENDSLD 5
#define PM_HTTP_METHOD 6
#define PM_SNI_EXT 7
struct proto_pos
{
int16_t pos;
uint8_t marker;
};
#define PROTO_POS_EMPTY(sp) ((sp)->marker==PM_ABS && (sp)->pos==0)
bool IsHostMarker(uint8_t posmarker);
const char *posmarker_name(uint8_t posmarker);
size_t AnyProtoPos(uint8_t posmarker, int16_t pos, const uint8_t *data, size_t sz);
size_t HttpPos(uint8_t posmarker, int16_t pos, const uint8_t *data, size_t sz);
size_t TLSPos(uint8_t posmarker, int16_t pos, const uint8_t *data, size_t sz);
size_t ResolvePos(const uint8_t *data, size_t sz, t_l7proto l7proto, const struct proto_pos *sp);
void ResolveMultiPos(const uint8_t *data, size_t sz, t_l7proto l7proto, const struct proto_pos *splits, int split_count, size_t *pos, int *pos_count);
extern const char *http_methods[9];
const char *HttpMethod(const uint8_t *data, size_t len);
bool IsHttp(const uint8_t *data, size_t len);
@@ -18,8 +52,6 @@ const char *HttpFind2ndLevelDomain(const char *host);
int HttpReplyCode(const uint8_t *data, size_t len);
// must be pre-checked by IsHttpReply
bool HttpReplyLooksLikeDPIRedirect(const uint8_t *data, size_t len, const char *host);
enum httpreqpos { httpreqpos_none = 0, httpreqpos_method, httpreqpos_host, httpreqpos_pos };
size_t HttpPos(enum httpreqpos tpos_type, size_t hpos_pos, const uint8_t *http, size_t sz);
uint16_t TLSRecordDataLen(const uint8_t *data);
size_t TLSRecordLen(const uint8_t *data);
@@ -29,5 +61,3 @@ bool TLSFindExt(const uint8_t *data, size_t len, uint16_t type, const uint8_t **
bool TLSFindExtInHandshake(const uint8_t *data, size_t len, uint16_t type, const uint8_t **ext, size_t *len_ext, bool bPartialIsOK);
bool TLSHelloExtractHost(const uint8_t *data, size_t len, char *host, size_t len_host, bool bPartialIsOK);
bool TLSHelloExtractHostFromHandshake(const uint8_t *data, size_t len, char *host, size_t len_host, bool bPartialIsOK);
enum tlspos { tlspos_none = 0, tlspos_sni, tlspos_sniext, tlspos_snisld, tlspos_pos };
size_t TLSPos(enum tlspos tpos_type, size_t tpos_pos, const uint8_t *tls, size_t sz, uint8_t type);