espressif/openthread
1
0
Fork 0
mirror of https://github.com/espressif/openthread.git synced 2026-08-15 07:07:46 +00:00
Code Issues Packages Projects Releases Wiki Activity

[posix-netif] configure metric for prefix routes (#7605)

Browse Source 
This commit allows configuring route metric for the prefix routes of
IPv6 addresses added to the Thread network interface.

This commit also simplifies `UpdateUnicastLinux` by using `AddRtAttr`.
This commit is contained in:
Simon Lin
2022-04-19 10:28:20 -07:00
committed by GitHub
parent 82f5ab298b
commit 1e9f6ebd95
2 changed files with 46 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/posix/platform/netif.cpp
+35 -38
View File
@@ -322,10 +322,35 @@ static uint8_t NetmaskToPrefixLength(const struct sockaddr_in6 *netmask)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-align"
static void UpdateUnicastLinux(const otIp6AddressInfo &aAddressInfo, bool aIsAdded)
#if !defined(IFA_RT_PRIORITY)
#define IFA_RT_PRIORITY 9
#endif
void AddRtAttr(struct nlmsghdr *aHeader, uint32_t aMaxLen, uint8_t aType, const void *aData, uint8_t aLen)
{
uint8_t len = RTA_LENGTH(aLen);
struct rtattr *rta;
assert(NLMSG_ALIGN(aHeader->nlmsg_len) + RTA_ALIGN(len) <= aMaxLen);
OT_UNUSED_VARIABLE(aMaxLen);
rta = (struct rtattr *)((char *)(aHeader) + NLMSG_ALIGN((aHeader)->nlmsg_len));
rta->rta_type = aType;
rta->rta_len = len;
if (aLen)
{
memcpy(RTA_DATA(rta), aData, aLen);
}
aHeader->nlmsg_len = NLMSG_ALIGN(aHeader->nlmsg_len) + RTA_ALIGN(len);
}
void AddRtAttrUint32(struct nlmsghdr *aHeader, uint32_t aMaxLen, uint8_t aType, uint32_t aData)
{
AddRtAttr(aHeader, aMaxLen, aType, &aData, sizeof(aData));
}
static void UpdateUnicastLinux(const otIp6AddressInfo &aAddressInfo, bool aIsAdded)
{
struct
{
struct nlmsghdr nh;
@@ -347,30 +372,25 @@ static void UpdateUnicastLinux(const otIp6AddressInfo &aAddressInfo, bool aIsAdd
req.ifa.ifa_scope = aAddressInfo.mScope;
req.ifa.ifa_index = gNetifIndex;
rta = reinterpret_cast<struct rtattr *>((reinterpret_cast<char *>(&req)) + NLMSG_ALIGN(req.nh.nlmsg_len));
rta->rta_type = IFA_LOCAL;
rta->rta_len = RTA_LENGTH(sizeof(*aAddressInfo.mAddress));
memcpy(RTA_DATA(rta), aAddressInfo.mAddress, sizeof(*aAddressInfo.mAddress));
req.nh.nlmsg_len = NLMSG_ALIGN(req.nh.nlmsg_len) + rta->rta_len;
AddRtAttr(&req.nh, sizeof(req), IFA_LOCAL, aAddressInfo.mAddress, sizeof(*aAddressInfo.mAddress));
if (!aAddressInfo.mPreferred)
{
struct ifa_cacheinfo cacheinfo;
rta = reinterpret_cast<struct rtattr *>((reinterpret_cast<char *>(rta)) + rta->rta_len);
rta->rta_type = IFA_CACHEINFO;
rta->rta_len = RTA_LENGTH(sizeof(cacheinfo));
memset(&cacheinfo, 0, sizeof(cacheinfo));
cacheinfo.ifa_valid = UINT32_MAX;
memcpy(RTA_DATA(rta), &cacheinfo, sizeof(cacheinfo));
req.nh.nlmsg_len += rta->rta_len;
AddRtAttr(&req.nh, sizeof(req), IFA_CACHEINFO, &cacheinfo, sizeof(cacheinfo));
}
#if OPENTHREAD_POSIX_CONFIG_NETIF_PREFIX_ROUTE_METRIC > 0
if (aAddressInfo.mScope > ot::Ip6::Address::kLinkLocalScope)
{
AddRtAttrUint32(&req.nh, sizeof(req), IFA_RT_PRIORITY, OPENTHREAD_POSIX_CONFIG_NETIF_PREFIX_ROUTE_METRIC);
}
#endif
if (send(sNetlinkFd, &req, req.nh.nlmsg_len, 0) != -1)
{
otLogInfoPlat("[netif] Sent request#%u to %s %s/%u", sNetlinkSequence, (aIsAdded ? "add" : "remove"),
@@ -516,29 +536,6 @@ exit:
}
#if OPENTHREAD_POSIX_CONFIG_INSTALL_EXTERNAL_ROUTES_ENABLE && __linux__
void AddRtAttr(struct nlmsghdr *aHeader, uint32_t aMaxLen, uint8_t aType, const void *aData, uint8_t aLen)
{
uint8_t len = RTA_LENGTH(aLen);
struct rtattr *rta;
assert(NLMSG_ALIGN(aHeader->nlmsg_len) + RTA_ALIGN(len) <= aMaxLen);
OT_UNUSED_VARIABLE(aMaxLen);
rta = (struct rtattr *)((char *)(aHeader) + NLMSG_ALIGN((aHeader)->nlmsg_len));
rta->rta_type = aType;
rta->rta_len = len;
if (aLen)
{
memcpy(RTA_DATA(rta), aData, aLen);
}
aHeader->nlmsg_len = NLMSG_ALIGN(aHeader->nlmsg_len) + RTA_ALIGN(len);
}
void AddRtAttrUint32(struct nlmsghdr *aHeader, uint32_t aMaxLen, uint8_t aType, uint32_t aData)
{
AddRtAttr(aHeader, aMaxLen, aType, &aData, sizeof(aData));
}
static otError AddExternalRoute(const otIp6Prefix &aPrefix)
{
constexpr unsigned int kBufSize = 128;
src/posix/platform/openthread-posix-config.h
+11
View File
@@ -126,6 +126,17 @@
#define OPENTHREAD_POSIX_CONFIG_SECURE_SETTINGS_ENABLE 0
#endif
/**
* @def OPENTHREAD_POSIX_CONFIG_NETIF_PREFIX_ROUTE_METRIC
*
* This setting configures the prefix route metric on the Thread network interface.
* Define as 0 to use use the default prefix route metric.
*
*/
#ifndef OPENTHREAD_POSIX_CONFIG_NETIF_PREFIX_ROUTE_METRIC
#define OPENTHREAD_POSIX_CONFIG_NETIF_PREFIX_ROUTE_METRIC 0
#endif
/**
* @def OPENTHREAD_POSIX_CONFIG_INSTALL_EXTERNAL_ROUTES_ENABLE
*