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view src/event/quic/ngx_event_quic_socket.h @ 8911:b09f055daa4e quic

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QUIC: fixed handling of RETIRE_CONNECTION_ID frame. Previously, the retired socket was not closed if it didn't match active or backup. New sockets could not be created (due to count limit), since retired socket was not closed before calling ngx_quic_create_sockets(). When replacing retired socket, new socket is only requested after closing old one, to avoid hitting the limit on the number of active connection ids. Together with added restrictions, this fixes an issue when a current socket could be closed during migration, recreated and erroneously reused leading to null pointer dereference.
author Vladimir Homutov <vl@nginx.com>
date Thu, 18 Nov 2021 14:19:36 +0300
parents 4117aa7fa38e
children 32daba3aabb2
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/*
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_EVENT_QUIC_SOCKET_H_INCLUDED_
#define _NGX_EVENT_QUIC_SOCKET_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>


ngx_int_t ngx_quic_open_sockets(ngx_connection_t *c,
    ngx_quic_connection_t *qc, ngx_quic_header_t *pkt);
void ngx_quic_close_sockets(ngx_connection_t *c);

ngx_quic_socket_t *ngx_quic_alloc_socket(ngx_connection_t *c,
    ngx_quic_connection_t *qc);
ngx_int_t ngx_quic_listen(ngx_connection_t *c, ngx_quic_connection_t *qc,
    ngx_quic_socket_t *qsock);
void ngx_quic_close_socket(ngx_connection_t *c, ngx_quic_socket_t *qsock);

void ngx_quic_unref_path(ngx_connection_t *c, ngx_quic_path_t *path);
void ngx_quic_connect(ngx_connection_t *c, ngx_quic_socket_t *qsock,
    ngx_quic_path_t *path, ngx_quic_client_id_t *cid);

ngx_quic_socket_t *ngx_quic_find_socket(ngx_connection_t *c, uint64_t seqnum);
ngx_quic_socket_t *ngx_quic_get_unconnected_socket(ngx_connection_t *c);


#endif /* _NGX_EVENT_QUIC_SOCKET_H_INCLUDED_ */