freewtp/lib/dtls.h
2016-08-23 08:55:15 +02:00

108 lines
2.4 KiB
C

#ifndef __CAPWAP_DTLS_HEADER__
#define __CAPWAP_DTLS_HEADER__
#include "list.h"
#include "network.h"
#define CAPWAP_DTLS_CLIENT 0
#define CAPWAP_DTLS_SERVER 1
#define CAPWAP_DTLS_MODE_NONE 0
#define CAPWAP_DTLS_MODE_CERTIFICATE 1
#define CAPWAP_DTLS_MODE_PRESHAREDKEY 2
#define CAPWAP_DTLS_ACTION_NONE 0
#define CAPWAP_DTLS_ACTION_HANDSHAKE 1
#define CAPWAP_DTLS_ACTION_DATA 2
#define CAPWAP_DTLS_ACTION_SHUTDOWN 3
#define CAPWAP_DTLS_ACTION_ERROR 4
#define CAPWAP_HANDSHAKE_ERROR -1
#define CAPWAP_HANDSHAKE_CONTINUE 0
#define CAPWAP_HANDSHAKE_COMPLETE 1
#define CAPWAP_ERROR_AGAIN 0
#define CAPWAP_ERROR_SHUTDOWN -1
#define CAPWAP_ERROR_CLOSE -2
/* */
struct capwap_dtls;
/* */
struct capwap_dtls_context {
int type;
int mode;
void* sslcontext;
union {
struct {
char* identity;
unsigned char* pskkey;
unsigned int pskkeylength;
} presharedkey;
};
};
/* */
struct capwap_dtls {
int enable;
int action;
/* */
void* sslsession;
struct capwap_dtls_context* dtlscontext;
/* */
int sock;
union sockaddr_capwap localaddr;
union sockaddr_capwap peeraddr;
/* Buffer read */
void* buffer;
int length;
};
/* */
struct capwap_dtls_param {
int type;
int mode;
union {
struct {
char* hint;
char* identity;
char* pskkey;
} presharedkey;
struct {
/* Certificate files */
char* filecert;
char* filekey;
char* fileca;
} cert;
};
};
/* */
int capwap_crypt_init();
void capwap_crypt_free();
int capwap_crypt_createcontext(struct capwap_dtls_context* dtlscontext, struct capwap_dtls_param* param);
void capwap_crypt_freecontext(struct capwap_dtls_context* dtlscontext);
void capwap_crypt_setconnection(struct capwap_dtls* dtls, int sock, union sockaddr_capwap* localaddr, union sockaddr_capwap* peeraddr);
int capwap_crypt_createsession(struct capwap_dtls* dtls, struct capwap_dtls_context* dtlscontext);
void capwap_crypt_freesession(struct capwap_dtls* dtls);
int capwap_crypt_open(struct capwap_dtls* dtls);
void capwap_crypt_close(struct capwap_dtls* dtls);
int capwap_crypt_sendto(struct capwap_dtls* dtls, void* buffer, int size);
int capwap_crypt_sendto_fragmentpacket(struct capwap_dtls* dtls, struct capwap_list* fragmentlist);
int capwap_decrypt_packet(struct capwap_dtls* dtls, void* encrybuffer, int size, void* plainbuffer, int maxsize);
int capwap_crypt_has_dtls_clienthello(void* buffer, int buffersize);
#endif /* __CAPWAP_DTLS_HEADER__ */