src/swtpm/swtpm_io.h

/********************************************************************************/
/*                                                                              */
/*                              TPM Host IO                                     */
/*                           Written by Ken Goldman                             */
/*                     IBM Thomas J. Watson Research Center                     */
/*            $Id: tpm_io.h 4211 2010-11-22 21:07:24Z kgoldman $                */
/*                                                                              */
/* (c) Copyright IBM Corporation 2006, 2010.					*/
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/* met:										*/
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/********************************************************************************/

#ifndef _SWTPM_IO_H_
#define _SWTPM_IO_H_

typedef struct TPM_CONNECTION_FD {
    int fd;     /* for socket, just an int */
} TPM_CONNECTION_FD;

TPM_RESULT SWTPM_IO_Init(void);
TPM_RESULT SWTPM_IO_Connect(TPM_CONNECTION_FD *connection_fd,
                            int notify_fd);
TPM_RESULT SWTPM_IO_Read(TPM_CONNECTION_FD *connection_fd,
                         unsigned char *buffer,
                         uint32_t *paramSize,
                         size_t buffer_size);
TPM_RESULT SWTPM_IO_Write(TPM_CONNECTION_FD *connection_fd,
                          const struct iovec *iovec,
                          int iovcnt);
TPM_RESULT SWTPM_IO_Disconnect(TPM_CONNECTION_FD *connection_fd);
TPM_RESULT SWTPM_IO_SetSocketFD(int fd);
int SWTPM_IO_GetSocketFD(void);

#define LOAD32(buffer,offset)         ( ntohl(*(uint32_t *)&(buffer)[(offset)]) )
#define LOAD16(buffer,offset)         ( ntohs(*(uint16_t *)&(buffer)[(offset)]) )
#define LOAD8(buffer,offset)          (      (*(uint8_t  *)&(buffer)[(offset)]) )

#endif /* _SWTPM_IO_H_ */