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author | Martin Willi <martin@revosec.ch> | 2013-12-12 17:34:06 +0100 |
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committer | Martin Willi <martin@revosec.ch> | 2014-06-04 16:32:08 +0200 |
commit | 13e18cb2fc52661152c570a5be3e7cddce388902 (patch) | |
tree | 0e722ee47db3dcfd33e9754c885ac06d6f5faa2c /src | |
parent | 0cefd9400734fea388b86d8d2a1075907f96d769 (diff) | |
download | strongswan-13e18cb2fc52661152c570a5be3e7cddce388902.tar.bz2 strongswan-13e18cb2fc52661152c570a5be3e7cddce388902.tar.xz |
kernel-iph: Implement get_nexthop()
Diffstat (limited to 'src')
-rw-r--r-- | src/libcharon/plugins/kernel_iph/kernel_iph_net.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/libcharon/plugins/kernel_iph/kernel_iph_net.c b/src/libcharon/plugins/kernel_iph/kernel_iph_net.c index 56c458fdb..36e3c4c56 100644 --- a/src/libcharon/plugins/kernel_iph/kernel_iph_net.c +++ b/src/libcharon/plugins/kernel_iph/kernel_iph_net.c @@ -497,6 +497,38 @@ METHOD(kernel_net_t, get_source_addr, host_t*, METHOD(kernel_net_t, get_nexthop, host_t*, private_kernel_iph_net_t *this, host_t *dest, host_t *src) { + MIB_IPFORWARD_ROW2 route; + SOCKADDR_INET best, *sai_dst, *sai_src = NULL; + DWORD res, index = 0; + host_t *nexthop; + + res = GetBestInterfaceEx(dest->get_sockaddr(dest), &index); + if (res != NO_ERROR) + { + DBG1(DBG_KNL, "getting interface to %H failed: 0x%08x", dest, res); + return NULL; + } + + sai_dst = (SOCKADDR_INET*)dest->get_sockaddr(dest); + if (src) + { + sai_src = (SOCKADDR_INET*)src->get_sockaddr(src); + } + res = GetBestRoute2(0, index, sai_src, sai_dst, 0, &route, &best); + if (res != NO_ERROR) + { + DBG2(DBG_KNL, "getting nexthop to %H failed: 0x%08x", dest, res); + return NULL; + } + nexthop = host_create_from_sockaddr((struct sockaddr*)&route.NextHop); + if (nexthop) + { + if (!nexthop->is_anyaddr(nexthop)) + { + return nexthop; + } + nexthop->destroy(nexthop); + } return NULL; } |