Mercurial > hg > nginx
view src/http/v3/ngx_http_v3_parse.h @ 8871:74b43926b470 quic
HTTP/3: fixed segfault when using SSL certificates with variables.
A QUIC connection doesn't have c->log->data and friends initialized to sensible
values. Yet, a request can be created in the certificate callback with such an
assumption, which leads to a segmentation fault due to null pointer dereference
in ngx_http_free_request(). The fix is to adjust initializing the QUIC part of
a connection such that it has all of that in place.
Further, this appends logging error context for unsuccessful QUIC handshakes:
- cannot load certificate .. while handling frames
- SSL_do_handshake() failed .. while sending frames
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Wed, 29 Sep 2021 15:01:59 +0300 |
parents | d6e191a583cc |
children |
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/* * Copyright (C) Roman Arutyunyan * Copyright (C) Nginx, Inc. */ #ifndef _NGX_HTTP_V3_PARSE_H_INCLUDED_ #define _NGX_HTTP_V3_PARSE_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.h> typedef struct { ngx_uint_t state; uint64_t value; } ngx_http_v3_parse_varlen_int_t; typedef struct { ngx_uint_t state; ngx_uint_t shift; uint64_t value; } ngx_http_v3_parse_prefix_int_t; typedef struct { ngx_uint_t state; uint64_t id; ngx_http_v3_parse_varlen_int_t vlint; } ngx_http_v3_parse_settings_t; typedef struct { ngx_uint_t state; ngx_uint_t insert_count; ngx_uint_t delta_base; ngx_uint_t sign; ngx_uint_t base; ngx_http_v3_parse_prefix_int_t pint; } ngx_http_v3_parse_field_section_prefix_t; typedef struct { ngx_uint_t state; ngx_uint_t length; ngx_uint_t huffman; ngx_str_t value; u_char *last; u_char huffstate; } ngx_http_v3_parse_literal_t; typedef struct { ngx_uint_t state; ngx_uint_t index; ngx_uint_t base; ngx_uint_t dynamic; ngx_str_t name; ngx_str_t value; ngx_http_v3_parse_prefix_int_t pint; ngx_http_v3_parse_literal_t literal; } ngx_http_v3_parse_field_t; typedef struct { ngx_uint_t state; ngx_http_v3_parse_field_t field; } ngx_http_v3_parse_field_rep_t; typedef struct { ngx_uint_t state; ngx_uint_t type; ngx_uint_t length; ngx_http_v3_parse_varlen_int_t vlint; ngx_http_v3_parse_field_section_prefix_t prefix; ngx_http_v3_parse_field_rep_t field_rep; } ngx_http_v3_parse_headers_t; typedef struct { ngx_uint_t state; ngx_http_v3_parse_field_t field; ngx_http_v3_parse_prefix_int_t pint; } ngx_http_v3_parse_encoder_t; typedef struct { ngx_uint_t state; ngx_http_v3_parse_prefix_int_t pint; } ngx_http_v3_parse_decoder_t; typedef struct { ngx_uint_t state; ngx_uint_t type; ngx_uint_t length; ngx_http_v3_parse_varlen_int_t vlint; ngx_http_v3_parse_settings_t settings; } ngx_http_v3_parse_control_t; typedef struct { ngx_uint_t state; ngx_http_v3_parse_varlen_int_t vlint; union { ngx_http_v3_parse_encoder_t encoder; ngx_http_v3_parse_decoder_t decoder; ngx_http_v3_parse_control_t control; } u; } ngx_http_v3_parse_uni_t; typedef struct { ngx_uint_t state; ngx_uint_t type; ngx_uint_t length; ngx_http_v3_parse_varlen_int_t vlint; } ngx_http_v3_parse_data_t; /* * Parse functions return codes: * NGX_DONE - parsing done * NGX_OK - sub-element done * NGX_AGAIN - more data expected * NGX_BUSY - waiting for external event * NGX_ERROR - internal error * NGX_HTTP_V3_ERROR_XXX - HTTP/3 or QPACK error */ ngx_int_t ngx_http_v3_parse_headers(ngx_connection_t *c, ngx_http_v3_parse_headers_t *st, ngx_buf_t *b); ngx_int_t ngx_http_v3_parse_data(ngx_connection_t *c, ngx_http_v3_parse_data_t *st, ngx_buf_t *b); ngx_int_t ngx_http_v3_parse_uni(ngx_connection_t *c, ngx_http_v3_parse_uni_t *st, ngx_buf_t *b); #endif /* _NGX_HTTP_V3_PARSE_H_INCLUDED_ */