Add hooks for converting TLV values to and from host byte order.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>master
parent
7d32a4bce7
commit
4e173932d2
2
makefile
2
makefile
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@ -24,7 +24,7 @@ CFLAGS = -Wall $(INC) $(DEBUG) $(EXTRA_CFLAGS)
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LDLIBS = -lm -lrt $(EXTRA_LDFLAGS)
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PRG = ptp4l phc2sys hwstamp_ctl
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OBJ = bmc.o clock.o config.o fsm.o ptp4l.o mave.o msg.o phc.o pi.o port.o \
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print.o raw.o servo.o sk.o tmtab.o transport.o udp.o udp6.o util.o
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print.o raw.o servo.o sk.o tlv.o tmtab.o transport.o udp.o udp6.o util.o
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OBJECTS = $(OBJ) phc2sys.o hwstamp_ctl.o
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SRC = $(OBJECTS:.o=.c)
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3
msg.c
3
msg.c
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@ -25,6 +25,7 @@
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#include "msg.h"
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#include "print.h"
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#include "tlv.h"
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#define VERSION_MASK 0x0f
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#define VERSION 0x02
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@ -164,6 +165,7 @@ static int suffix_post_recv(uint8_t *ptr, int len)
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}
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len -= tlv->length;
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ptr += tlv->length;
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tlv_post_recv(tlv);
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}
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return cnt;
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}
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@ -178,6 +180,7 @@ static void suffix_pre_send(uint8_t *ptr, int cnt)
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for (i = 0; i < cnt; i++) {
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tlv = (struct TLV *) ptr;
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tlv_pre_send(tlv);
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ptr += sizeof(struct TLV) + tlv->length;
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tlv->type = htons(tlv->type);
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tlv->length = htons(tlv->length);
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@ -0,0 +1,27 @@
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/**
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* @file tlv.c
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* @note Copyright (C) 2012 Richard Cochran <richardcochran@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "tlv.h"
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void tlv_post_recv(struct TLV *tlv)
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{
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}
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void tlv_pre_send(struct TLV *tlv)
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{
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}
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@ -0,0 +1,37 @@
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/**
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* @file tlv.h
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* @brief Implements helper routines for processing Type Length Value fields.
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* @note Copyright (C) 2012 Richard Cochran <richardcochran@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef HAVE_TLV_H
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#define HAVE_TLV_H
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#include "ddt.h"
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/**
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* Converts recognized value sub-fields into host byte order.
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* @param tlv Pointer to a Type Length Value field.
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*/
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void tlv_post_recv(struct TLV *tlv);
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/**
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* Converts recognized value sub-fields into network byte order.
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* @param tlv Pointer to a Type Length Value field.
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*/
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void tlv_pre_send(struct TLV *tlv);
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#endif
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