lighttpd 1.4.x https://www.lighttpd.net/
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#ifndef LI_H2_H
#define LI_H2_H
#include "first.h"
#include "sys-time.h"
#include "base_decls.h"
#include "buffer.h"
#include "ls-hpack/lshpack.h"
struct chunkqueue; /* declaration */
typedef enum {
H2_FTYPE_DATA = 0x00
,H2_FTYPE_HEADERS = 0x01
,H2_FTYPE_PRIORITY = 0x02
,H2_FTYPE_RST_STREAM = 0x03
,H2_FTYPE_SETTINGS = 0x04
,H2_FTYPE_PUSH_PROMISE = 0x05
,H2_FTYPE_PING = 0x06
,H2_FTYPE_GOAWAY = 0x07
,H2_FTYPE_WINDOW_UPDATE = 0x08
,H2_FTYPE_CONTINUATION = 0x09
,H2_FTYPE_PRIORITY_UPDATE = 0x10
} request_h2ftype_t;
typedef enum {
H2_SETTINGS_HEADER_TABLE_SIZE = 0x01
,H2_SETTINGS_ENABLE_PUSH = 0x02
,H2_SETTINGS_MAX_CONCURRENT_STREAMS = 0x03
,H2_SETTINGS_INITIAL_WINDOW_SIZE = 0x04
,H2_SETTINGS_MAX_FRAME_SIZE = 0x05
,H2_SETTINGS_MAX_HEADER_LIST_SIZE = 0x06
,H2_SETTINGS_ENABLE_CONNECT_PROTOCOL = 0x08
,H2_SETTINGS_NO_RFC7540_PRIORITIES = 0x09
} request_h2settings_t;
typedef enum {
H2_FLAG_END_STREAM = 0x01 /* DATA HEADERS */
,H2_FLAG_END_HEADERS = 0x04 /* HEADERS PUSH_PROMISE CONTINUATION */
,H2_FLAG_PADDED = 0x08 /* DATA HEADERS PUSH_PROMISE */
,H2_FLAG_PRIORITY = 0x20 /* HEADERS */
,H2_FLAG_ACK = 0x01 /* PING SETTINGS*/
} request_h2flag_t;
typedef enum {
H2_E_NO_ERROR = 0x00
,H2_E_PROTOCOL_ERROR = 0x01
,H2_E_INTERNAL_ERROR = 0x02
,H2_E_FLOW_CONTROL_ERROR = 0x03
,H2_E_SETTINGS_TIMEOUT = 0x04
,H2_E_STREAM_CLOSED = 0x05
,H2_E_FRAME_SIZE_ERROR = 0x06
,H2_E_REFUSED_STREAM = 0x07
,H2_E_CANCEL = 0x08
,H2_E_COMPRESSION_ERROR = 0x09
,H2_E_CONNECT_ERROR = 0x0a
,H2_E_ENHANCE_YOUR_CALM = 0x0b
,H2_E_INADEQUATE_SECURITY = 0x0c
,H2_E_HTTP_1_1_REQUIRED = 0x0d
} request_h2error_t;
typedef enum {
H2_STATE_IDLE,
H2_STATE_RESERVED_LOCAL,
H2_STATE_RESERVED_REMOTE,
H2_STATE_OPEN,
H2_STATE_HALF_CLOSED_LOCAL,
H2_STATE_HALF_CLOSED_REMOTE,
H2_STATE_CLOSED
} request_h2state_t;
struct h2con {
request_st *r[8];
uint32_t rused;
uint32_t h2_cid;
uint32_t h2_sid;
int32_t sent_goaway;
unix_time64_t sent_settings;
uint32_t s_header_table_size; /* SETTINGS_HEADER_TABLE_SIZE */
uint32_t s_enable_push; /* SETTINGS_ENABLE_PUSH */
uint32_t s_max_concurrent_streams; /* SETTINGS_MAX_CONCURRENT_STREAMS */
int32_t s_initial_window_size; /* SETTINGS_INITIAL_WINDOW_SIZE */
uint32_t s_max_frame_size; /* SETTINGS_MAX_FRAME_SIZE */
uint32_t s_max_header_list_size; /* SETTINGS_MAX_HEADER_LIST_SIZE */
struct lshpack_dec decoder;
struct lshpack_enc encoder;
unix_time64_t half_closed_ts;
};
void h2_send_goaway (connection *con, request_h2error_t e);
int h2_parse_frames (connection *con);
int h2_want_read (connection *con);
void h2_init_con (request_st * restrict h2r, connection * restrict con, const buffer * restrict http2_settings);
int h2_send_1xx (request_st *r, connection *con);
void h2_send_100_continue (request_st *r, connection *con);
void h2_send_headers (request_st *r, connection *con);
uint32_t h2_send_cqdata (request_st *r, connection *con, struct chunkqueue *cq, uint32_t dlen);
void h2_send_end_stream (request_st *r, connection *con);
void h2_retire_stream (request_st *r, connection *con);
void h2_retire_con (request_st *h2r, connection *con);
__attribute_cold__
__attribute_noinline__
int h2_check_con_upgrade_h2c (request_st *r);
#endif