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Networking: Improve naming and simplify some logic of previous commit.

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This commit is contained in:
Gregory Nutt
2017-07-07 06:51:52 -06:00
parent 70c6b52132
commit b4a0ac53a8
8 changed files with 88 additions and 59 deletions
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net/icmpv6/icmpv6_advertise.c
+6 -6
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@@ -97,7 +97,7 @@ void icmpv6_advertise(FAR struct net_driver_s *dev,
{
FAR struct ipv6_hdr_s *ipv6 = IPv6BUF;
FAR struct icmpv6_neighbor_advertise_s *adv;
uint16_t l1size;
uint16_t lladdrsize;
uint16_t l3size;
/* Set up the IPv6 header */
@@ -108,8 +108,8 @@ void icmpv6_advertise(FAR struct net_driver_s *dev,
/* Length excludes the IPv6 header */
l1size = netdev_dev_l1size(dev);
l3size = SIZEOF_ICMPV6_NEIGHBOR_ADVERTISE_S(l1size);
lladdrsize = netdev_dev_lladdrsize(dev);
l3size = SIZEOF_ICMPV6_NEIGHBOR_ADVERTISE_S(lladdrsize);
ipv6->len[0] = (l3size >> 8);
ipv6->len[1] = (l3size & 0xff);
@@ -137,14 +137,14 @@ void icmpv6_advertise(FAR struct net_driver_s *dev,
/* Set up the options */
adv->opttype = ICMPv6_OPT_TGTLLADDR; /* Option type */
adv->optlen = ICMPv6_OPT_OCTECTS(l1size); /* Option length in octets */
adv->opttype = ICMPv6_OPT_TGTLLADDR; /* Option type */
adv->optlen = ICMPv6_OPT_OCTECTS(lladdrsize); /* Option length in octets */
/* Copy our link layer address into the message
* REVISIT: What if the link layer is not Ethernet?
*/
memcpy(adv->tgtlladdr, &dev->d_mac, l1size);
memcpy(adv->tgtlladdr, &dev->d_mac, lladdrsize);
/* Calculate the checksum over both the ICMP header and payload */
net/icmpv6/icmpv6_radvertise.c
+6 -6
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@@ -114,7 +114,7 @@ void icmpv6_radvertise(FAR struct net_driver_s *dev)
FAR struct icmpv6_srclladdr_s *srcaddr;
FAR struct icmpv6_mtu_s *mtu;
FAR struct icmpv6_prefixinfo_s *prefix;
uint16_t l1size;
uint16_t lladdrsize;
uint16_t l3size;
/* Set up the IPv6 header */
@@ -125,9 +125,9 @@ void icmpv6_radvertise(FAR struct net_driver_s *dev)
/* Length excludes the IPv6 header */
l1size = netdev_dev_l1size(dev);
lladdrsize = netdev_dev_lladdrsize(dev);
l3size = sizeof(icmpv6_router_advertise_s) +
SIZEOF_ICMPV6_SRCLLADDR_S(l1size) +
SIZEOF_ICMPV6_SRCLLADDR_S(lladdrsize) +
sizeof(struct icmpv6_mtu_s) +
sizeof(icmpv6_prefixinfo_s);
@@ -160,13 +160,13 @@ void icmpv6_radvertise(FAR struct net_driver_s *dev)
srcaddr = (FAR struct icmpv6_srclladdr_s *)
((FAR uint8_t *)adv + sizeof(icmpv6_router_advertise_s));
srcaddr->opttype = ICMPv6_OPT_SRCLLADDR;
srcaddr->optlen = ICMPv6_OPT_OCTECTS(l1size);
memcpy(srcaddr->srclladdr, &dev->d_mac, l1size);
srcaddr->optlen = ICMPv6_OPT_OCTECTS(lladdrsize);
memcpy(srcaddr->srclladdr, &dev->d_mac, lladdrsize);
/* Set up the MTU option */
mtu = (FAR struct icmpv6_mtu_s *)
((FAR uint8_t *)srcaddr + SIZEOF_ICMPV6_SRCLLADDR_S(l1size));
((FAR uint8_t *)srcaddr + SIZEOF_ICMPV6_SRCLLADDR_S(lladdrsize));
mtu = &adv->mtu;
mtu->opttype = ICMPv6_OPT_MTU;
mtu->optlen = 1;
net/icmpv6/icmpv6_rsolicit.c
+6 -6
View File
@@ -93,7 +93,7 @@ void icmpv6_rsolicit(FAR struct net_driver_s *dev)
FAR struct ipv6_hdr_s *ipv6;
FAR struct icmpv6_router_solicit_s *sol;
FAR struct eth_hdr_s *eth;
uint16_t l1size;
uint16_t lladdrsize;
uint16_t l3size;
/* Set up the IPv6 header (most is probably already in place) */
@@ -105,8 +105,8 @@ void icmpv6_rsolicit(FAR struct net_driver_s *dev)
/* Length excludes the IPv6 header */
l1size = netdev_dev_l1size(dev);
l3size = SIZEOF_ICMPV6_ROUTER_SOLICIT_S(l1size);
lladdrsize = netdev_dev_lladdrsize(dev);
l3size = SIZEOF_ICMPV6_ROUTER_SOLICIT_S(lladdrsize);
ipv6->len[0] = (l3size >> 8);
ipv6->len[1] = (l3size & 0xff);
@@ -135,14 +135,14 @@ void icmpv6_rsolicit(FAR struct net_driver_s *dev)
/* Set up the options */
sol->opttype = ICMPv6_OPT_SRCLLADDR; /* Option type */
sol->optlen = ICMPv6_OPT_OCTECTS(l1size); /* Option length in octets */
sol->opttype = ICMPv6_OPT_SRCLLADDR; /* Option type */
sol->optlen = ICMPv6_OPT_OCTECTS(lladdrsize); /* Option length in octets */
/* Copy our link layer address into the message
* REVISIT: What if the link layer is not Ethernet?
*/
memcpy(sol->srclladdr, &dev->d_mac, l1size);
memcpy(sol->srclladdr, &dev->d_mac, lladdrsize);
/* Calculate the checksum over both the ICMP header and payload */
net/icmpv6/icmpv6_solicit.c
+6 -6
View File
@@ -103,7 +103,7 @@ void icmpv6_solicit(FAR struct net_driver_s *dev,
{
FAR struct ipv6_hdr_s *ipv6;
FAR struct icmpv6_neighbor_solicit_s *sol;
uint16_t l1size;
uint16_t lladdrsize;
uint16_t l3size;
/* Set up the IPv6 header (most is probably already in place) */
@@ -115,8 +115,8 @@ void icmpv6_solicit(FAR struct net_driver_s *dev,
/* Length excludes the IPv6 header */
l1size = netdev_dev_l1size(dev);
l3size = SIZEOF_ICMPV6_NEIGHBOR_SOLICIT_S(l1size);
lladdrsize = netdev_dev_lladdrsize(dev);
l3size = SIZEOF_ICMPV6_NEIGHBOR_SOLICIT_S(lladdrsize);
ipv6->len[0] = (l3size >> 8);
ipv6->len[1] = (l3size & 0xff);
@@ -149,14 +149,14 @@ void icmpv6_solicit(FAR struct net_driver_s *dev,
/* Set up the options */
sol->opttype = ICMPv6_OPT_SRCLLADDR; /* Option type */
sol->optlen = ICMPv6_OPT_OCTECTS(l1size); /* Option length in octets */
sol->opttype = ICMPv6_OPT_SRCLLADDR; /* Option type */
sol->optlen = ICMPv6_OPT_OCTECTS(lladdrsize); /* Option length in octets */
/* Copy our link layer address into the message
* REVISIT: What if the link layer is not Ethernet?
*/
memcpy(sol->srclladdr, &dev->d_mac, l1size);
memcpy(sol->srclladdr, &dev->d_mac, lladdrsize);
/* Calculate the checksum over both the ICMP header and payload */
net/neighbor/neighbor_add.c
+1 -1
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@@ -124,7 +124,7 @@ void neighbor_add(FAR net_ipv6addr_t ipaddr, uint8_t lltype,
#ifdef CONFIG_NET_MULTILINK
g_neighbors[oldest_ndx].ne_addr.u.na_lltype = lltype;
#endif
memcpy(&g_neighbors[oldest_ndx].ne_addr.u, addr, netdev_type_l1size(lltype));
memcpy(&g_neighbors[oldest_ndx].ne_addr.u, addr, netdev_type_lladdrsize(lltype));
/* Dump the contents of the new entry */
net/netdev/Make.defs
+1 -1
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@@ -39,7 +39,7 @@ NETDEV_CSRCS += netdev_register.c netdev_ioctl.c netdev_txnotify.c
NETDEV_CSRCS += netdev_findbyname.c netdev_findbyaddr.c netdev_findbyindex.c
NETDEV_CSRCS += netdev_count.c netdev_foreach.c netdev_unregister.c
NETDEV_CSRCS += netdev_carrier.c netdev_default.c netdev_verify.c
NETDEV_CSRCS += netdev_l1size.c
NETDEV_CSRCS += netdev_lladdrsize.c
ifeq ($(CONFIG_NET_RXAVAIL),y)
NETDEV_CSRCS += netdev_rxnotify.c
net/netdev/netdev.h
+48 -7
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@@ -47,6 +47,31 @@
#include <nuttx/net/ip.h>
/****************************************************************************
* Public Data
****************************************************************************/
/* If there is only one supported link layer, then the size of the link
* layer address is a constant.
*
* NOTE: Literal constants are used here to avoid bringing in all of the
* header files where they are correctly defined.
*/
#ifndef CONFIG_NET_MULTILINK
# if defined(CONFIG_NET_ETHERNET)
# define NETDEV_LLADDRSIZE 6 /* IFHWADDRLEN */
# elif defined(CONFIG_NET_6LOWPAN)
# ifdef CONFIG_NET_6LOWPAN_EXTENDEDADDR
# define NETDEV_LLADDRSIZE 10 /* NET_6LOWPAN_EADDRSIZE */
# else
# define NETDEV_LLADDRSIZE 2 /* NET_6LOWPAN_SADDRSIZE */
# endif
# else
# define NETDEV_LLADDRSIZE 0 /* No link layer address */
# endif
#endif
/****************************************************************************
* Public Data
****************************************************************************/
@@ -438,15 +463,12 @@ int netdev_count(void);
#endif
/****************************************************************************
* Name: netdev_dev_l1size and netdev_type_llsize
* Name: netdev_type_lladdrsize
*
* Description:
* Size of the MAC address associated with a device or with a link layer
* type.
* Returns the size of the MAC address associated with a link layer type.
*
* Parameters:
* dev - A reference to the device of interest
* OR
* lltype - link layer type code
*
* Returned Value:
@@ -454,8 +476,27 @@ int netdev_count(void);
*
****************************************************************************/
int netdev_type_l1size(uint8_t lltype);
int netdev_dev_l1size(FAR struct net_driver_s *dev);
int netdev_type_lladdrsize(uint8_t lltype);
/****************************************************************************
* Name: netdev_dev_lladdrsize
*
* Description:
* Returns the size of the MAC address associated with a network device.
*
* Parameters:
* dev - A reference to the device of interest
*
* Returned Value:
* The size of the MAC address associated with this device
*
****************************************************************************/
#ifdef CONFIG_NET_MULTILINK
# define netdev_dev_lladdrsize(dev) netdev_type_lladdrsize((dev)->d_lltype)
#else
# define netdev_dev_lladdrsize(dev) NETDEV_LLADDRSIZE
#endif
#undef EXTERN
#ifdef __cplusplus
net/netdev/netdev_l1size.c → net/netdev/netdev_lladdrsize.c
+14 -26
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@@ -1,5 +1,5 @@
/****************************************************************************
* net/netdev/netdev_l1size.c
* net/netdev/netdev_lladdrsize.c
*
* Copyright (C) 2017 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
@@ -54,15 +54,12 @@
****************************************************************************/
/****************************************************************************
* Name: netdev_dev_l1size and netdev_type_llsize
* Name: netdev_type_lladdrsize
*
* Description:
* Size of the MAC address associated with a device or with a link layer
* type.
* Returns the size of the MAC address associated with a link layer type.
*
* Parameters:
* dev - A reference to the device of interest
* OR
* lltype - link layer type code
*
* Returned Value:
@@ -70,13 +67,15 @@
*
****************************************************************************/
int netdev_type_l1size(uint8_t lltype)
int netdev_type_lladdrsize(uint8_t lltype)
{
/* Get the length of the address for this link layer type */
#ifdef CONFIG_NET_ETHERNET
if (lltype == NET_LL_ETHERNET)
{
/* size of the Ethernet MAC address */
return IFHWADDRLEN;
}
else
@@ -84,6 +83,10 @@ int netdev_type_l1size(uint8_t lltype)
#ifdef CONFIG_NET_6LOWPAN
if (lltype == NET_LL_IEEE802154)
{
/* 6LoWPAN can be configured to use either extended or short
* addressing.
*/
#ifdef CONFIG_NET_6LOWPAN_EXTENDEDADDR
return NET_6LOWPAN_EADDRSIZE;
#else
@@ -93,25 +96,10 @@ int netdev_type_l1size(uint8_t lltype)
else
#endif
{
/* Either the link layer type associated with lltype has no address,
* or support for that link layer type is not enabled.
*/
return 0;
}
}
int netdev_dev_l1size(FAR struct net_driver_s *dev)
{
/* Get the length of the address for this device */
#if defined(CONFIG_NET_MULTILINK)
return netdev_type_l1size(dev->d_lltype);
#elif defined(CONFIG_NET_ETHERNET)
return IFHWADDRLEN;
#elif defined(CONFIG_NET_6LOWPAN)
#ifdef CONFIG_NET_6LOWPAN_EXTENDEDADDR
return NET_6LOWPAN_EADDRSIZE;
#else
return NET_6LOWPAN_SADDRSIZE;
#endif
#else
return 0;
#endif
}