diff options
Diffstat (limited to 'nginx/src/http/v2/ngx_http_v2.h')
| -rw-r--r-- | nginx/src/http/v2/ngx_http_v2.h | 415 |
1 files changed, 0 insertions, 415 deletions
diff --git a/nginx/src/http/v2/ngx_http_v2.h b/nginx/src/http/v2/ngx_http_v2.h deleted file mode 100644 index bec2216..0000000 --- a/nginx/src/http/v2/ngx_http_v2.h +++ /dev/null @@ -1,415 +0,0 @@ -/* - * Copyright (C) Nginx, Inc. - * Copyright (C) Valentin V. Bartenev - */ - - -#ifndef _NGX_HTTP_V2_H_INCLUDED_ -#define _NGX_HTTP_V2_H_INCLUDED_ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_http.h> - - -#define NGX_HTTP_V2_ALPN_ADVERTISE "\x02h2" -#define NGX_HTTP_V2_NPN_ADVERTISE NGX_HTTP_V2_ALPN_ADVERTISE - -#define NGX_HTTP_V2_STATE_BUFFER_SIZE 16 - -#define NGX_HTTP_V2_DEFAULT_FRAME_SIZE (1 << 14) -#define NGX_HTTP_V2_MAX_FRAME_SIZE ((1 << 24) - 1) - -#define NGX_HTTP_V2_INT_OCTETS 4 -#define NGX_HTTP_V2_MAX_FIELD \ - (127 + (1 << (NGX_HTTP_V2_INT_OCTETS - 1) * 7) - 1) - -#define NGX_HTTP_V2_STREAM_ID_SIZE 4 - -#define NGX_HTTP_V2_FRAME_HEADER_SIZE 9 - -/* frame types */ -#define NGX_HTTP_V2_DATA_FRAME 0x0 -#define NGX_HTTP_V2_HEADERS_FRAME 0x1 -#define NGX_HTTP_V2_PRIORITY_FRAME 0x2 -#define NGX_HTTP_V2_RST_STREAM_FRAME 0x3 -#define NGX_HTTP_V2_SETTINGS_FRAME 0x4 -#define NGX_HTTP_V2_PUSH_PROMISE_FRAME 0x5 -#define NGX_HTTP_V2_PING_FRAME 0x6 -#define NGX_HTTP_V2_GOAWAY_FRAME 0x7 -#define NGX_HTTP_V2_WINDOW_UPDATE_FRAME 0x8 -#define NGX_HTTP_V2_CONTINUATION_FRAME 0x9 - -/* frame flags */ -#define NGX_HTTP_V2_NO_FLAG 0x00 -#define NGX_HTTP_V2_ACK_FLAG 0x01 -#define NGX_HTTP_V2_END_STREAM_FLAG 0x01 -#define NGX_HTTP_V2_END_HEADERS_FLAG 0x04 -#define NGX_HTTP_V2_PADDED_FLAG 0x08 -#define NGX_HTTP_V2_PRIORITY_FLAG 0x20 - -#define NGX_HTTP_V2_MAX_WINDOW ((1U << 31) - 1) -#define NGX_HTTP_V2_DEFAULT_WINDOW 65535 - -#define NGX_HTTP_V2_DEFAULT_WEIGHT 16 - - -typedef struct ngx_http_v2_connection_s ngx_http_v2_connection_t; -typedef struct ngx_http_v2_node_s ngx_http_v2_node_t; -typedef struct ngx_http_v2_out_frame_s ngx_http_v2_out_frame_t; - - -typedef u_char *(*ngx_http_v2_handler_pt) (ngx_http_v2_connection_t *h2c, - u_char *pos, u_char *end); - - -typedef struct { - ngx_str_t name; - ngx_str_t value; -} ngx_http_v2_header_t; - - -typedef struct { - ngx_uint_t sid; - size_t length; - size_t padding; - unsigned flags:8; - - unsigned incomplete:1; - unsigned keep_pool:1; - - /* HPACK */ - unsigned parse_name:1; - unsigned parse_value:1; - unsigned index:1; - ngx_http_v2_header_t header; - size_t header_limit; - u_char field_state; - u_char *field_start; - u_char *field_end; - size_t field_rest; - ngx_pool_t *pool; - - ngx_http_v2_stream_t *stream; - - u_char buffer[NGX_HTTP_V2_STATE_BUFFER_SIZE]; - size_t buffer_used; - ngx_http_v2_handler_pt handler; -} ngx_http_v2_state_t; - - - -typedef struct { - ngx_http_v2_header_t **entries; - - ngx_uint_t added; - ngx_uint_t deleted; - ngx_uint_t reused; - ngx_uint_t allocated; - - size_t size; - size_t free; - u_char *storage; - u_char *pos; -} ngx_http_v2_hpack_t; - - -struct ngx_http_v2_connection_s { - ngx_connection_t *connection; - ngx_http_connection_t *http_connection; - - ngx_uint_t processing; - ngx_uint_t frames; - ngx_uint_t idle; - - ngx_uint_t pushing; - ngx_uint_t concurrent_pushes; - - size_t send_window; - size_t recv_window; - size_t init_window; - - size_t frame_size; - - ngx_queue_t waiting; - - ngx_http_v2_state_t state; - - ngx_http_v2_hpack_t hpack; - - ngx_pool_t *pool; - - ngx_http_v2_out_frame_t *free_frames; - ngx_connection_t *free_fake_connections; - - ngx_http_v2_node_t **streams_index; - - ngx_http_v2_out_frame_t *last_out; - - ngx_queue_t dependencies; - ngx_queue_t closed; - - ngx_uint_t last_sid; - ngx_uint_t last_push; - - unsigned closed_nodes:8; - unsigned settings_ack:1; - unsigned table_update:1; - unsigned blocked:1; - unsigned goaway:1; - unsigned push_disabled:1; -}; - - -struct ngx_http_v2_node_s { - ngx_uint_t id; - ngx_http_v2_node_t *index; - ngx_http_v2_node_t *parent; - ngx_queue_t queue; - ngx_queue_t children; - ngx_queue_t reuse; - ngx_uint_t rank; - ngx_uint_t weight; - double rel_weight; - ngx_http_v2_stream_t *stream; -}; - - -struct ngx_http_v2_stream_s { - ngx_http_request_t *request; - ngx_http_v2_connection_t *connection; - ngx_http_v2_node_t *node; - - ngx_uint_t queued; - - /* - * A change to SETTINGS_INITIAL_WINDOW_SIZE could cause the - * send_window to become negative, hence it's signed. - */ - ssize_t send_window; - size_t recv_window; - - ngx_buf_t *preread; - - ngx_http_v2_out_frame_t *free_frames; - ngx_chain_t *free_frame_headers; - ngx_chain_t *free_bufs; - - ngx_queue_t queue; - - ngx_array_t *cookies; - - ngx_pool_t *pool; - - unsigned waiting:1; - unsigned blocked:1; - unsigned exhausted:1; - unsigned in_closed:1; - unsigned out_closed:1; - unsigned rst_sent:1; - unsigned no_flow_control:1; - unsigned skip_data:1; -}; - - -struct ngx_http_v2_out_frame_s { - ngx_http_v2_out_frame_t *next; - ngx_chain_t *first; - ngx_chain_t *last; - ngx_int_t (*handler)(ngx_http_v2_connection_t *h2c, - ngx_http_v2_out_frame_t *frame); - - ngx_http_v2_stream_t *stream; - size_t length; - - unsigned blocked:1; - unsigned fin:1; -}; - - -static ngx_inline void -ngx_http_v2_queue_frame(ngx_http_v2_connection_t *h2c, - ngx_http_v2_out_frame_t *frame) -{ - ngx_http_v2_out_frame_t **out; - - for (out = &h2c->last_out; *out; out = &(*out)->next) { - - if ((*out)->blocked || (*out)->stream == NULL) { - break; - } - - if ((*out)->stream->node->rank < frame->stream->node->rank - || ((*out)->stream->node->rank == frame->stream->node->rank - && (*out)->stream->node->rel_weight - >= frame->stream->node->rel_weight)) - { - break; - } - } - - frame->next = *out; - *out = frame; -} - - -static ngx_inline void -ngx_http_v2_queue_blocked_frame(ngx_http_v2_connection_t *h2c, - ngx_http_v2_out_frame_t *frame) -{ - ngx_http_v2_out_frame_t **out; - - for (out = &h2c->last_out; *out; out = &(*out)->next) { - - if ((*out)->blocked || (*out)->stream == NULL) { - break; - } - } - - frame->next = *out; - *out = frame; -} - - -static ngx_inline void -ngx_http_v2_queue_ordered_frame(ngx_http_v2_connection_t *h2c, - ngx_http_v2_out_frame_t *frame) -{ - frame->next = h2c->last_out; - h2c->last_out = frame; -} - - -void ngx_http_v2_init(ngx_event_t *rev); - -ngx_int_t ngx_http_v2_read_request_body(ngx_http_request_t *r); -ngx_int_t ngx_http_v2_read_unbuffered_request_body(ngx_http_request_t *r); - -ngx_http_v2_stream_t *ngx_http_v2_push_stream(ngx_http_v2_stream_t *parent, - ngx_str_t *path); - -void ngx_http_v2_close_stream(ngx_http_v2_stream_t *stream, ngx_int_t rc); - -ngx_int_t ngx_http_v2_send_output_queue(ngx_http_v2_connection_t *h2c); - - -ngx_str_t *ngx_http_v2_get_static_name(ngx_uint_t index); -ngx_str_t *ngx_http_v2_get_static_value(ngx_uint_t index); - -ngx_int_t ngx_http_v2_get_indexed_header(ngx_http_v2_connection_t *h2c, - ngx_uint_t index, ngx_uint_t name_only); -ngx_int_t ngx_http_v2_add_header(ngx_http_v2_connection_t *h2c, - ngx_http_v2_header_t *header); -ngx_int_t ngx_http_v2_table_size(ngx_http_v2_connection_t *h2c, size_t size); - - -ngx_int_t ngx_http_v2_huff_decode(u_char *state, u_char *src, size_t len, - u_char **dst, ngx_uint_t last, ngx_log_t *log); -size_t ngx_http_v2_huff_encode(u_char *src, size_t len, u_char *dst, - ngx_uint_t lower); - - -#define ngx_http_v2_prefix(bits) ((1 << (bits)) - 1) - - -#if (NGX_HAVE_NONALIGNED) - -#define ngx_http_v2_parse_uint16(p) ntohs(*(uint16_t *) (p)) -#define ngx_http_v2_parse_uint32(p) ntohl(*(uint32_t *) (p)) - -#else - -#define ngx_http_v2_parse_uint16(p) ((p)[0] << 8 | (p)[1]) -#define ngx_http_v2_parse_uint32(p) \ - ((uint32_t) (p)[0] << 24 | (p)[1] << 16 | (p)[2] << 8 | (p)[3]) - -#endif - -#define ngx_http_v2_parse_length(p) ((p) >> 8) -#define ngx_http_v2_parse_type(p) ((p) & 0xff) -#define ngx_http_v2_parse_sid(p) (ngx_http_v2_parse_uint32(p) & 0x7fffffff) -#define ngx_http_v2_parse_window(p) (ngx_http_v2_parse_uint32(p) & 0x7fffffff) - - -#define ngx_http_v2_write_uint16_aligned(p, s) \ - (*(uint16_t *) (p) = htons((uint16_t) (s)), (p) + sizeof(uint16_t)) -#define ngx_http_v2_write_uint32_aligned(p, s) \ - (*(uint32_t *) (p) = htonl((uint32_t) (s)), (p) + sizeof(uint32_t)) - -#if (NGX_HAVE_NONALIGNED) - -#define ngx_http_v2_write_uint16 ngx_http_v2_write_uint16_aligned -#define ngx_http_v2_write_uint32 ngx_http_v2_write_uint32_aligned - -#else - -#define ngx_http_v2_write_uint16(p, s) \ - ((p)[0] = (u_char) ((s) >> 8), \ - (p)[1] = (u_char) (s), \ - (p) + sizeof(uint16_t)) - -#define ngx_http_v2_write_uint32(p, s) \ - ((p)[0] = (u_char) ((s) >> 24), \ - (p)[1] = (u_char) ((s) >> 16), \ - (p)[2] = (u_char) ((s) >> 8), \ - (p)[3] = (u_char) (s), \ - (p) + sizeof(uint32_t)) - -#endif - -#define ngx_http_v2_write_len_and_type(p, l, t) \ - ngx_http_v2_write_uint32_aligned(p, (l) << 8 | (t)) - -#define ngx_http_v2_write_sid ngx_http_v2_write_uint32 - - -#define ngx_http_v2_indexed(i) (128 + (i)) -#define ngx_http_v2_inc_indexed(i) (64 + (i)) - -#define ngx_http_v2_write_name(dst, src, len, tmp) \ - ngx_http_v2_string_encode(dst, src, len, tmp, 1) -#define ngx_http_v2_write_value(dst, src, len, tmp) \ - ngx_http_v2_string_encode(dst, src, len, tmp, 0) - -#define NGX_HTTP_V2_ENCODE_RAW 0 -#define NGX_HTTP_V2_ENCODE_HUFF 0x80 - -#define NGX_HTTP_V2_AUTHORITY_INDEX 1 - -#define NGX_HTTP_V2_METHOD_INDEX 2 -#define NGX_HTTP_V2_METHOD_GET_INDEX 2 -#define NGX_HTTP_V2_METHOD_POST_INDEX 3 - -#define NGX_HTTP_V2_PATH_INDEX 4 -#define NGX_HTTP_V2_PATH_ROOT_INDEX 4 - -#define NGX_HTTP_V2_SCHEME_HTTP_INDEX 6 -#define NGX_HTTP_V2_SCHEME_HTTPS_INDEX 7 - -#define NGX_HTTP_V2_STATUS_INDEX 8 -#define NGX_HTTP_V2_STATUS_200_INDEX 8 -#define NGX_HTTP_V2_STATUS_204_INDEX 9 -#define NGX_HTTP_V2_STATUS_206_INDEX 10 -#define NGX_HTTP_V2_STATUS_304_INDEX 11 -#define NGX_HTTP_V2_STATUS_400_INDEX 12 -#define NGX_HTTP_V2_STATUS_404_INDEX 13 -#define NGX_HTTP_V2_STATUS_500_INDEX 14 - -#define NGX_HTTP_V2_ACCEPT_ENCODING_INDEX 16 -#define NGX_HTTP_V2_ACCEPT_LANGUAGE_INDEX 17 -#define NGX_HTTP_V2_CONTENT_LENGTH_INDEX 28 -#define NGX_HTTP_V2_CONTENT_TYPE_INDEX 31 -#define NGX_HTTP_V2_DATE_INDEX 33 -#define NGX_HTTP_V2_LAST_MODIFIED_INDEX 44 -#define NGX_HTTP_V2_LOCATION_INDEX 46 -#define NGX_HTTP_V2_SERVER_INDEX 54 -#define NGX_HTTP_V2_USER_AGENT_INDEX 58 -#define NGX_HTTP_V2_VARY_INDEX 59 - - -u_char *ngx_http_v2_string_encode(u_char *dst, u_char *src, size_t len, - u_char *tmp, ngx_uint_t lower); - - -#endif /* _NGX_HTTP_V2_H_INCLUDED_ */ |