C++ PROTO_NAME函数代码示例

/*
 * fsm_rtermreq - Receive Terminate-Req.
 */
static void
fsm_rtermreq(fsm *f, int id, u_char *p, int len)
{
  LWIP_UNUSED_ARG(p);

  FSMDEBUG(LOG_INFO, ("fsm_rtermreq(%s): Rcvd id %d state=%d (%s)\n",
        PROTO_NAME(f), id, f->state, ppperr_strerr[f->state]));

  switch (f->state) {
    case LS_ACKRCVD:
    case LS_ACKSENT:
      f->state = LS_REQSENT;    /* Start over but keep trying */
      break;

    case LS_OPENED:
      if (len > 0) {
        FSMDEBUG(LOG_INFO, ("%s terminated by peer (%p)\n", PROTO_NAME(f), p));
      } else {
        FSMDEBUG(LOG_INFO, ("%s terminated by peer\n", PROTO_NAME(f)));
      }
      if (f->callbacks->down) {
        (*f->callbacks->down)(f);  /* Inform upper layers */
      }
      f->retransmits = 0;
      f->state = LS_STOPPING;
      TIMEOUT(fsm_timeout, f, f->timeouttime);
      break;
  }

  fsm_sdata(f, TERMACK, (u_char)id, NULL, 0);
}

/*
 * fsm_lowerup - The lower layer is up.
 */
void
fsm_lowerup(fsm *f)
{
  int oldState = f->state;

  LWIP_UNUSED_ARG(oldState);

  switch( f->state ) {
    case LS_INITIAL:
      f->state = LS_CLOSED;
      break;

    case LS_STARTING:
      if( f->flags & OPT_SILENT ) {
        f->state = LS_STOPPED;
      } else {
        /* Send an initial configure-request */
        fsm_sconfreq(f, 0);
        f->state = LS_REQSENT;
      }
    break;

    default:
      FSMDEBUG(LOG_INFO, ("%s: Up event in state %d (%s)!\n",
          PROTO_NAME(f), f->state, ppperr_strerr[f->state]));
  }

  FSMDEBUG(LOG_INFO, ("%s: lowerup state %d (%s) -> %d (%s)\n",
      PROTO_NAME(f), oldState, ppperr_strerr[oldState], f->state, ppperr_strerr[f->state]));
}

EFI_STATUS EFIAPI fsw_efi_DriverBinding_Stop(IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
                                             IN  EFI_HANDLE                   ControllerHandle,
                                             IN  UINTN                        NumberOfChildren,
                                             IN  EFI_HANDLE                   *ChildHandleBuffer)
{
    EFI_STATUS                      Status;
    EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *FileSystem;
    FSW_VOLUME_DATA                 *Volume;

    FSW_MSG_DEBUG((FSW_MSGSTR(__FUNCTION__ ": enter\n")));
    Status = BS->OpenProtocol(ControllerHandle,
                              &PROTO_NAME(SimpleFileSystemProtocol),
                              (VOID **) &FileSystem,
                              This->DriverBindingHandle,
                              ControllerHandle,
                              EFI_OPEN_PROTOCOL_GET_PROTOCOL);
    FSW_MSG_DEBUG((FSW_MSGSTR(__FUNCTION__ ": protocol opened with %r\n"), Status));
    if (!EFI_ERROR(Status)) {
        Volume = FSW_VOLUME_FROM_VOL_INTERFACE(FileSystem);
        fsw_efi_DetachVolume(Volume);
    }

    Status = BS->CloseProtocol(ControllerHandle,
                               &PROTO_NAME(DiskIoProtocol),
                               This->DriverBindingHandle,
                               ControllerHandle);
    FSW_MSG_DEBUG((FSW_MSGSTR(__FUNCTION__ ": leaving with %r\n"), Status));
    return Status;
}

/**
 * Image entry point. Installs the Driver Binding and Component Name protocols
 * on the image's handle. Actually mounting a file system is initiated through
 * the Driver Binding protocol at the firmware's request.
 */
EFI_STATUS EFIAPI fsw_efi_main(IN EFI_HANDLE         ImageHandle,
                               IN EFI_SYSTEM_TABLE   *SystemTable)
{
    EFI_STATUS  Status;

#ifndef VBOX
    InitializeLib(ImageHandle, SystemTable);
#endif

    // complete Driver Binding protocol instance
    fsw_efi_DriverBinding_table.ImageHandle          = ImageHandle;
    fsw_efi_DriverBinding_table.DriverBindingHandle  = ImageHandle;
    // install Driver Binding protocol
    Status = BS->InstallProtocolInterface(&fsw_efi_DriverBinding_table.DriverBindingHandle,
                                          &PROTO_NAME(DriverBindingProtocol),
                                          EFI_NATIVE_INTERFACE,
                                          &fsw_efi_DriverBinding_table);
    if (EFI_ERROR (Status)) {
        return Status;
    }

    // install Component Name protocol
    Status = BS->InstallProtocolInterface(&fsw_efi_DriverBinding_table.DriverBindingHandle,
                                          &PROTO_NAME(ComponentNameProtocol),
                                          EFI_NATIVE_INTERFACE,
                                          &fsw_efi_ComponentName_table);
    if (EFI_ERROR (Status)) {
        return Status;
    }

    return EFI_SUCCESS;
}

/*
 * fsm_rtermreq - Receive Terminate-Req.
 */
static void
fsm_rtermreq(
    fsm *f,
    int id,
    u_char *p,
    int len)
{
    switch (f->state) {
    case ACKRCVD:
    case ACKSENT:
	f->state = REQSENT;		/* Start over but keep trying */
	break;

    case OPENED:
	if (len > 0) {
	    info("%s terminated by peer (%0.*v)", PROTO_NAME(f), len, p);
	} else
	    info("%s terminated by peer", PROTO_NAME(f));
	if (f->callbacks->down)
	    (*f->callbacks->down)(f);	/* Inform upper layers */
	f->retransmits = 0;
	f->state = STOPPING;
	TIMEOUT(fsm_timeout, f, f->timeouttime);
	break;
    }

    fsm_sdata(f, TERMACK, id, NULL, 0);
}

EFI_STATUS EFIAPI fsw_efi_DriverBinding_Supported(IN EFI_DRIVER_BINDING_PROTOCOL  *This,
                                                  IN EFI_HANDLE                   ControllerHandle,
                                                  IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath)
{
    EFI_STATUS           Status;
    EFI_DISK_IO_PROTOCOL *DiskIo;

    Status = BS->OpenProtocol(ControllerHandle,
                              &PROTO_NAME(DiskIoProtocol),
                              (VOID **) &DiskIo,
                              This->DriverBindingHandle,
                              ControllerHandle,
                              EFI_OPEN_PROTOCOL_GET_PROTOCOL);
    if (EFI_ERROR(Status)) {
        goto Done;
    }

    BS->CloseProtocol(ControllerHandle,
                      &PROTO_NAME(DiskIoProtocol),
                      This->DriverBindingHandle,
                      ControllerHandle);

    Status = BS->OpenProtocol(ControllerHandle,
                              &PROTO_NAME(BlockIoProtocol),
                              NULL,
                              This->DriverBindingHandle,
                              ControllerHandle,
                              EFI_OPEN_PROTOCOL_TEST_PROTOCOL);

Done:
    return Status;
}

/*
 * fsm_rtermreq - Receive Terminate-Req.
 */
static void
fsm_rtermreq(fsm *f, int id, u_char *p, int len)
{
    char str[80];

    FSMDEBUG((LOG_INFO, "fsm_rtermreq(%s): Rcvd id %d.",
	      PROTO_NAME(f), id));

    switch (f->state) {
    case ACKRCVD:
    case ACKSENT:
	f->state = REQSENT;		/* Start over but keep trying */
	break;

    case OPENED:
	if (len > 0) {
	    fmtmsg(str, sizeof(str), "%0.*v", len, p);
	    syslog(LOG_INFO, "%s terminated by peer (%s)", PROTO_NAME(f), str);
	} else
	    syslog(LOG_INFO, "%s terminated by peer", PROTO_NAME(f));
	if (f->callbacks->down)
	    (*f->callbacks->down)(f);	/* Inform upper layers */
	f->retransmits = 0;
	f->state = STOPPING;
	TIMEOUT(fsm_timeout, f, f->timeouttime);
	break;
    }

    fsm_sdata(f, TERMACK, id, NULL, 0);
}

/*
 * fsm_rtermreq - Receive Terminate-Req.
 */
static void fsm_rtermreq(fsm *f, int id, u_char *p, int len) {
    ppp_pcb *pcb = f->pcb;

    switch (f->state) {
    case PPP_FSM_ACKRCVD:
    case PPP_FSM_ACKSENT:
	f->state = PPP_FSM_REQSENT;		/* Start over but keep trying */
	break;

    case PPP_FSM_OPENED:
	if (len > 0) {
	    ppp_info("%s terminated by peer (%0.*v)", PROTO_NAME(f), len, p);
	} else
	    ppp_info("%s terminated by peer", PROTO_NAME(f));
	f->retransmits = 0;
	f->state = PPP_FSM_STOPPING;
	if (f->callbacks->down)
	    (*f->callbacks->down)(f);	/* Inform upper layers */
	TIMEOUT(fsm_timeout, f, pcb->settings.fsm_timeout_time);
	break;
    default:
	break;
    }

    fsm_sdata(f, TERMACK, id, NULL, 0);
}

/*
 * fsm_timeout - Timeout expired.
 */
static void
fsm_timeout(void *arg)
{
  fsm *f = (fsm *) arg;

  switch (f->state) {
    case LS_CLOSING:
    case LS_STOPPING:
      if( f->retransmits <= 0 ) {
        FSMDEBUG(LOG_WARNING, ("%s: timeout sending Terminate-Request state=%d (%s)\n",
             PROTO_NAME(f), f->state, ppperr_strerr[f->state]));
        /*
         * We've waited for an ack long enough.  Peer probably heard us.
         */
        f->state = (f->state == LS_CLOSING)? LS_CLOSED: LS_STOPPED;
        if( f->callbacks->finished ) {
          (*f->callbacks->finished)(f);
        }
      } else {
        FSMDEBUG(LOG_WARNING, ("%s: timeout resending Terminate-Requests state=%d (%s)\n",
             PROTO_NAME(f), f->state, ppperr_strerr[f->state]));
        /* Send Terminate-Request */
        fsm_sdata(f, TERMREQ, f->reqid = ++f->id,
            (u_char *) f->term_reason, f->term_reason_len);
        TIMEOUT(fsm_timeout, f, f->timeouttime);
        --f->retransmits;
      }
      break;

    case LS_REQSENT:
    case LS_ACKRCVD:
    case LS_ACKSENT:
      if (f->retransmits <= 0) {
        FSMDEBUG(LOG_WARNING, ("%s: timeout sending Config-Requests state=%d (%s)\n",
         PROTO_NAME(f), f->state, ppperr_strerr[f->state]));
        f->state = LS_STOPPED;
        if( (f->flags & OPT_PASSIVE) == 0 && f->callbacks->finished ) {
          (*f->callbacks->finished)(f);
        }
      } else {
        FSMDEBUG(LOG_WARNING, ("%s: timeout resending Config-Request state=%d (%s)\n",
         PROTO_NAME(f), f->state, ppperr_strerr[f->state]));
        /* Retransmit the configure-request */
        if (f->callbacks->retransmit) {
          (*f->callbacks->retransmit)(f);
        }
        fsm_sconfreq(f, 1);    /* Re-send Configure-Request */
        if( f->state == LS_ACKRCVD ) {
          f->state = LS_REQSENT;
        }
      }
      break;

    default:
      FSMDEBUG(LOG_INFO, ("%s: UNHANDLED timeout event in state %d (%s)!\n",
          PROTO_NAME(f), f->state, ppperr_strerr[f->state]));
  }
}

EFI_STATUS EFIAPI fsw_efi_DriverBinding_Start(IN EFI_DRIVER_BINDING_PROTOCOL  *This,
                                              IN EFI_HANDLE                   ControllerHandle,
                                              IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath)
{
    EFI_STATUS          Status;
    EFI_BLOCK_IO        *BlockIo;
    EFI_DISK_IO         *DiskIo;
    FSW_VOLUME_DATA     *Volume;

    VBoxLogFlowFuncEnter();
    // open consumed protocols
    Status = BS->OpenProtocol(ControllerHandle,
                              &PROTO_NAME(BlockIoProtocol),
                              (VOID **) &BlockIo,
                              This->DriverBindingHandle,
                              ControllerHandle,
                              EFI_OPEN_PROTOCOL_GET_PROTOCOL);   // NOTE: we only want to look at the MediaId
    if (EFI_ERROR(Status)) {
        VBoxLogFlowFuncLeaveRC(Status);
        return Status;
    }

    Status = BS->OpenProtocol(ControllerHandle,
                              &PROTO_NAME(DiskIoProtocol),
                              (VOID **) &DiskIo,
                              This->DriverBindingHandle,
                              ControllerHandle,
                              EFI_OPEN_PROTOCOL_BY_DRIVER);
    if (EFI_ERROR(Status)) {
        VBoxLogFlowFuncLeaveRC(Status);
        return Status;
    }

    // allocate volume structure
    Volume = AllocateZeroPool(sizeof(FSW_VOLUME_DATA));
    Status = fsw_efi_ReMount(Volume, ControllerHandle, DiskIo, BlockIo);

    // on errors, close the opened protocols
    if (EFI_ERROR(Status)) {
        if (Volume->vol != NULL)
            fsw_unmount(Volume->vol);
        FreePool(Volume);

#if 0
        if (Status == EFI_MEDIA_CHANGED)
            Status = fsw_efi_ReMount(Volume, ControllerHandle, DiskIo, BlockIo);
        else
#endif
            BS->CloseProtocol(ControllerHandle,
                              &PROTO_NAME(DiskIoProtocol),
                              This->DriverBindingHandle,
                              ControllerHandle);
    }

    VBoxLogFlowFuncLeaveRC(Status);
    return Status;
}

EFI_STATUS EFIAPI fsw_efi_DriverBinding_Stop(IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
                                             IN  EFI_HANDLE                   ControllerHandle,
                                             IN  UINTN                        NumberOfChildren,
                                             IN  EFI_HANDLE                   *ChildHandleBuffer)
{
    EFI_STATUS          Status;
    EFI_FILE_IO_INTERFACE *FileSystem;
    FSW_VOLUME_DATA     *Volume;

#if DEBUG_LEVEL
//    Print(L"fsw_efi_DriverBinding_Stop\n");
#endif

    // get the installed SimpleFileSystem interface
    Status = BS->OpenProtocol(ControllerHandle,
                              &PROTO_NAME(SimpleFileSystemProtocol),
                              (VOID **) &FileSystem,
                              This->DriverBindingHandle,
                              ControllerHandle,
                              EFI_OPEN_PROTOCOL_GET_PROTOCOL);
    if (EFI_ERROR(Status))
        return EFI_UNSUPPORTED;

    // get private data structure
    Volume = FSW_VOLUME_FROM_FILE_SYSTEM(FileSystem);

    // uninstall Simple File System protocol
    Status = BS->UninstallMultipleProtocolInterfaces(ControllerHandle,
                                                     &PROTO_NAME(SimpleFileSystemProtocol), &Volume->FileSystem,
                                                     NULL);
    if (EFI_ERROR(Status)) {
 //       Print(L"Fsw ERROR: UninstallMultipleProtocolInterfaces returned %x\n", Status);
        return Status;
    }
#if DEBUG_LEVEL
//    Print(L"fsw_efi_DriverBinding_Stop: protocol uninstalled successfully\n");
#endif

    // release private data structure
    if (Volume->vol != NULL)
        fsw_unmount(Volume->vol);
    FreePool(Volume);

    Status = BS->CloseProtocol(ControllerHandle,
                               &PROTO_NAME(DiskIo2Protocol),
                               This->DriverBindingHandle,
                               ControllerHandle);

    // close the consumed protocols
    Status = BS->CloseProtocol(ControllerHandle,
                               &PROTO_NAME(DiskIoProtocol),
                               This->DriverBindingHandle,
                               ControllerHandle);

    return Status;
}

/*
 * fsm_rconfnakrej - Receive Configure-Nak or Configure-Reject.
 */
static void
fsm_rconfnakrej(fsm *f, int code, int id, u_char *inp, int len)
{
  int (*proc) (fsm *, u_char *, int);
  int ret;

  FSMDEBUG(LOG_INFO, ("fsm_rconfnakrej(%s): Rcvd id %d state=%d (%s)\n",
        PROTO_NAME(f), id, f->state, ppperr_strerr[f->state]));

  if (id != f->reqid || f->seen_ack) { /* Expected id? */
    return;        /* Nope, toss... */
  }
  proc = (code == CONFNAK)? f->callbacks->nakci: f->callbacks->rejci;
  if (!proc || !((ret = proc(f, inp, len)))) {
    /* Nak/reject is bad - ignore it */
    FSMDEBUG(LOG_INFO, ("%s: received bad %s (length %d)\n",
          PROTO_NAME(f), (code==CONFNAK? "Nak": "reject"), len));
    return;
  }
  f->seen_ack = 1;

  switch (f->state) {
    case LS_CLOSED:
    case LS_STOPPED:
      fsm_sdata(f, TERMACK, (u_char)id, NULL, 0);
      break;
    
    case LS_REQSENT:
    case LS_ACKSENT:
      /* They didn't agree to what we wanted - try another request */
      UNTIMEOUT(fsm_timeout, f);  /* Cancel timeout */
      if (ret < 0) {
        f->state = LS_STOPPED;    /* kludge for stopping CCP */
      } else {
        fsm_sconfreq(f, 0);    /* Send Configure-Request */
      }
      break;
    
    case LS_ACKRCVD:
      /* Got a Nak/reject when we had already had an Ack?? oh well... */
      UNTIMEOUT(fsm_timeout, f);  /* Cancel timeout */
      fsm_sconfreq(f, 0);
      f->state = LS_REQSENT;
      break;
    
    case LS_OPENED:
      /* Go down and restart negotiation */
      if (f->callbacks->down) {
        (*f->callbacks->down)(f);  /* Inform upper layers */
      }
      fsm_sconfreq(f, 0);    /* Send initial Configure-Request */
      f->state = LS_REQSENT;
      break;
  }
}

/*
 * fsm_rconfack - Receive Configure-Ack.
 */
static void
fsm_rconfack(fsm *f, int id, u_char *inp, int len)
{
  FSMDEBUG(LOG_INFO, ("fsm_rconfack(%s): Rcvd id %d state=%d (%s)\n",
        PROTO_NAME(f), id, f->state, ppperr_strerr[f->state]));
  
  if (id != f->reqid || f->seen_ack) {   /* Expected id? */
    return; /* Nope, toss... */
  }
  if( !(f->callbacks->ackci? (*f->callbacks->ackci)(f, inp, len): (len == 0)) ) {
    /* Ack is bad - ignore it */
    FSMDEBUG(LOG_INFO, ("%s: received bad Ack (length %d)\n",
          PROTO_NAME(f), len));
    return;
  }
  f->seen_ack = 1;
  
  switch (f->state) {
    case LS_CLOSED:
    case LS_STOPPED:
      fsm_sdata(f, TERMACK, (u_char)id, NULL, 0);
      break;
    
    case LS_REQSENT:
      f->state = LS_ACKRCVD;
      f->retransmits = f->maxconfreqtransmits;
      break;
    
    case LS_ACKRCVD:
      /* Huh? an extra valid Ack? oh well... */
      UNTIMEOUT(fsm_timeout, f);  /* Cancel timeout */
      fsm_sconfreq(f, 0);
      f->state = LS_REQSENT;
      break;
    
    case LS_ACKSENT:
      UNTIMEOUT(fsm_timeout, f);  /* Cancel timeout */
      f->state = LS_OPENED;
      f->retransmits = f->maxconfreqtransmits;
      if (f->callbacks->up) {
        (*f->callbacks->up)(f);  /* Inform upper layers */
      }
      break;
    
    case LS_OPENED:
      /* Go down and restart negotiation */
      if (f->callbacks->down) {
        (*f->callbacks->down)(f);  /* Inform upper layers */
      }
      fsm_sconfreq(f, 0);    /* Send initial Configure-Request */
      f->state = LS_REQSENT;
      break;
  }
}

/*
 * fsm_rconfack - Receive Configure-Ack.
 */
static void
fsm_rconfack(fsm *f, int id, u_char *inp, int len)
{
    FSMDEBUG((LOG_INFO, "fsm_rconfack(%s): Rcvd id %d.",
	      PROTO_NAME(f), id));

    if (id != f->reqid || f->seen_ack)		/* Expected id? */
	return;					/* Nope, toss... */
    if( !(f->callbacks->ackci? (*f->callbacks->ackci)(f, inp, len):
	  (len == 0)) ){
	/* Ack is bad - ignore it */
	log_packet(inp, len, "Received bad configure-ack: ", LOG_ERR);
	FSMDEBUG((LOG_INFO, "%s: received bad Ack (length %d)",
		  PROTO_NAME(f), len));
	return;
    }
    f->seen_ack = 1;

    switch (f->state) {
    case CLOSED:
    case STOPPED:
	fsm_sdata(f, TERMACK, id, NULL, 0);
	break;

    case REQSENT:
	f->state = ACKRCVD;
	f->retransmits = f->maxconfreqtransmits;
	break;

    case ACKRCVD:
	/* Huh? an extra valid Ack? oh well... */
	UNTIMEOUT(fsm_timeout, f);	/* Cancel timeout */
	fsm_sconfreq(f, 0);
	f->state = REQSENT;
	break;

    case ACKSENT:
	UNTIMEOUT(fsm_timeout, f);	/* Cancel timeout */
	f->state = OPENED;
	f->retransmits = f->maxconfreqtransmits;
	if (f->callbacks->up)
	    (*f->callbacks->up)(f);	/* Inform upper layers */
	break;

    case OPENED:
	/* Go down and restart negotiation */
	if (f->callbacks->down)
	    (*f->callbacks->down)(f);	/* Inform upper layers */
	fsm_sconfreq(f, 0);		/* Send initial Configure-Request */
	f->state = REQSENT;
	break;
    }
}

/*
 * fsm_timeout - Timeout expired.
 */
static void
fsm_timeout(void *arg)
{
    fsm *f = (fsm *) arg;

    switch (f->state) {
    case CLOSING:
    case STOPPING:
	if( f->retransmits <= 0 ){
	    /*
	     * We've waited for an ack long enough.  Peer probably heard us.
	     */
	    f->state = (f->state == CLOSING)? CLOSED: STOPPED;
	    if( f->callbacks->finished )
		(*f->callbacks->finished)(f);
	} else {
	    /* Send Terminate-Request */
	    fsm_sdata(f, TERMREQ, f->reqid = ++f->id,
		      (u_char *) f->term_reason, f->term_reason_len);
	    TIMEOUT(fsm_timeout, f, f->timeouttime);
	    --f->retransmits;
	}
	break;

    case REQSENT:
    case ACKRCVD:
    case ACKSENT:
	if (f->retransmits <= 0) {
	    syslog(LOG_WARNING, "%s: timeout sending Config-Requests",
		   PROTO_NAME(f));
	    f->state = STOPPED;
	    if( (f->flags & OPT_PASSIVE) == 0 && f->callbacks->finished )
		(*f->callbacks->finished)(f);

	} else {
	    /* Retransmit the configure-request */
	    if (f->callbacks->retransmit)
		(*f->callbacks->retransmit)(f);
	    fsm_sconfreq(f, 1);		/* Re-send Configure-Request */
	    if( f->state == ACKRCVD )
		f->state = REQSENT;
	}
	break;

    default:
	FSMDEBUG((LOG_INFO, "%s: Timeout event in state %d!",
		  PROTO_NAME(f), f->state));
    }
}