cnet_protosw.h

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/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright (c) 2016-2022 Intel Corporation
 */
 
#ifndef __CNET_PROTOSW_H
#define __CNET_PROTOSW_H
 
#include <stdint.h>           // for uint16_t, uint8_t
#include <stdio.h>            // for size_t
#include <sys/types.h>        // for ssize_t
 
#include "cnet_const.h"        // for proto_input_t
#ifdef __cplusplus
extern "C" {
#endif
 
#define CNET_MAX_IPPROTO 256
#define PROTOSW_WILDCARD 0xFFFF
 
struct in_caddr;
struct chnl;
struct cne_vec;
struct stk_s;
 
/*
 * protoFuncs_t - structure to hold all of the protocol function pointers.
 *
 * Each function pointer must have a valid value, which means may have to set
 * the function pointer to the nullProtocol routine, if not supported.
 *
 * The following functions are called as indicated below.
 */
typedef int (*close_func_t)(struct chnl *ch);
typedef int (*send_func_t)(struct chnl *ch, pktmbuf_t **mbufs, uint16_t nb_mbufs);
typedef int (*recv_func_t)(struct chnl *ch, pktmbuf_t **mbufs, int nb_mbufs);
typedef int (*bind_func_t)(struct chnl *ch, struct in_caddr *pAddr, int len);
typedef int (*connect_func_t)(struct chnl *ch, struct in_caddr *to, int slen);
typedef int (*shutdown_func_t)(struct chnl *ch, int how);
typedef int (*accept_func_t)(struct chnl *ch, struct in_caddr *addr, int *addrlen);
typedef int (*listen_func_t)(struct chnl *ch, int backlog);
 
struct proto_funcs {
    close_func_t close_func;       
    recv_func_t recv_func;         
    send_func_t send_func;         
    bind_func_t bind_func;         
    connect_func_t connect_func;   
    shutdown_func_t shutdown_func; 
    accept_func_t accept_func;     
    listen_func_t listen_func;     
};
 
/*
 * protosw_t - Protocol switch structure to hold all of the different types
 */
struct protosw_entry {
    char name[14];             
    uint16_t domain;           
    uint16_t type;             
    uint16_t proto;            
    pktmbuf_t **vec;           
    struct proto_funcs *funcs; 
};
 
CNDP_API struct protosw_entry *cnet_protosw_add(const char *name, uint16_t domain, uint16_t type,
                                                uint16_t proto);
 
CNDP_API struct protosw_entry *cnet_protosw_find(uint16_t domain, uint16_t type, uint16_t proto);
 
CNDP_API void cnet_protosw_dump(struct stk_s *stk);
 
CNDP_API int cnet_ipproto_set(uint8_t ipproto, struct protosw_entry *psw);
 
CNDP_API struct protosw_entry *cnet_ipproto_get(uint8_t ipproto);
 
CNDP_API struct protosw_entry *cnet_protosw_find_by_proto(uint8_t proto);
 
#ifdef __cplusplus
}
#endif
 
#endif /* __CNET_PROTOSW_H */