comparison src/http/v3/ngx_http_v3_parse.c @ 8495:ba5977b38b2e quic

HTTP/3: reordered H3_MISSING_SETTINGS and H3_FRAME_UNEXPECTED. The quic-http-34 is ambiguous as to what error should be generated for the first frame in control stream: Each side MUST initiate a single control stream at the beginning of the connection and send its SETTINGS frame as the first frame on this stream. If the first frame of the control stream is any other frame type, this MUST be treated as a connection error of type H3_MISSING_SETTINGS. If a DATA frame is received on a control stream, the recipient MUST respond with a connection error of type H3_FRAME_UNEXPECTED. If a HEADERS frame is received on a control stream, the recipient MUST respond with a connection error of type H3_FRAME_UNEXPECTED. Previously, H3_FRAME_UNEXPECTED had priority, but now H3_MISSING_SETTINGS has. The arguments in the spec sound more compelling for H3_MISSING_SETTINGS.
author Roman Arutyunyan <arut@nginx.com>
date Fri, 11 Jun 2021 10:56:51 +0300
parents ac0398da8f23
children 278ab0ed24f2
comparison
equal deleted inserted replaced
8494:80d396fd8ee8 8495:ba5977b38b2e
1029 st->type = st->vlint.value; 1029 st->type = st->vlint.value;
1030 1030
1031 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, 1031 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
1032 "http3 parse frame type:%ui", st->type); 1032 "http3 parse frame type:%ui", st->type);
1033 1033
1034 if (st->state == sw_first_type
1035 && st->type != NGX_HTTP_V3_FRAME_SETTINGS)
1036 {
1037 return NGX_HTTP_V3_ERR_MISSING_SETTINGS;
1038 }
1039
1034 if (ngx_http_v3_is_v2_frame(st->type) 1040 if (ngx_http_v3_is_v2_frame(st->type)
1035 || st->type == NGX_HTTP_V3_FRAME_DATA 1041 || st->type == NGX_HTTP_V3_FRAME_DATA
1036 || st->type == NGX_HTTP_V3_FRAME_HEADERS) 1042 || st->type == NGX_HTTP_V3_FRAME_HEADERS)
1037 { 1043 {
1038 return NGX_HTTP_V3_ERR_FRAME_UNEXPECTED; 1044 return NGX_HTTP_V3_ERR_FRAME_UNEXPECTED;
1039 } 1045 }
1040 1046
1041 if (st->state == sw_first_type
1042 && st->type != NGX_HTTP_V3_FRAME_SETTINGS)
1043 {
1044 return NGX_HTTP_V3_ERR_MISSING_SETTINGS;
1045 }
1046
1047 st->state = sw_length; 1047 st->state = sw_length;
1048 break; 1048 break;
1049 1049
1050 case sw_length: 1050 case sw_length:
1051 1051