pack_extensions.h

/*
 * This file is part of the openHiTLS project.
 *
 * openHiTLS is licensed under the Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *
 *     http://license.coscl.org.cn/MulanPSL2
 *
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */
 
#ifndef PACK_EXTENSIONS_H
#define PACK_EXTENSIONS_H
 
#include <stdint.h>
#include "tls.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
/*
 * Hook function for packing extensions of client and server.
 */
typedef int32_t (*PACK_EXT_FUNC)(const TLS_Ctx *ctx, PackPacket *pkt);

typedef struct {
    uint16_t exMsgType;            
    bool needPack;                 
    PACK_EXT_FUNC packFunc;        
} PackExtInfo;
 
typedef void (*GET_EXTSIZE_FUNC)(const TLS_Ctx *ctx, uint32_t *exSize);
 
typedef struct {
    bool needCheck;
    GET_EXTSIZE_FUNC getSizeFunc;
} GetExtFieldSize;

int32_t PackClientExtension(const TLS_Ctx *ctx, PackPacket *pkt);

int32_t PackServerExtension(const TLS_Ctx *ctx, PackPacket *pkt);

int32_t PackEmptyExtension(uint16_t exMsgType, bool needPack, PackPacket *pkt);
int32_t PackExtensionHeader(uint16_t exMsgType, uint16_t exMsgLen, PackPacket *pkt);
 
int32_t PackRecordSizeLimit(const TLS_Ctx *ctx, PackPacket *pkt);
 
int32_t PackServerSelectAlpnProto(const TLS_Ctx *ctx, PackPacket *pkt);
 
int32_t PackClientCAList(const TLS_Ctx *ctx, PackPacket *pkt);
#ifdef __cplusplus
}
#endif /* end __cplusplus */
 
#endif /* end PACK_EXTENSIONS_H */