From: Paul Gofman pgofman@codeweavers.com
--- dlls/nsiproxy.sys/ip.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/dlls/nsiproxy.sys/ip.c b/dlls/nsiproxy.sys/ip.c index 6d285dcfaca..388a819d5e9 100644 --- a/dlls/nsiproxy.sys/ip.c +++ b/dlls/nsiproxy.sys/ip.c @@ -1818,6 +1818,7 @@ static NTSTATUS ipv6_forward_enumerate_all( void *key_data, UINT key_size, void strtoul( ptr + 1, &ptr, 16 ); /* refcount, skip */ strtoul( ptr + 1, &ptr, 16 ); /* use, skip */ rtf_flags = strtoul( ptr + 1, &ptr, 16); + if (!(rtf_flags & RTF_UP)) continue; entry.protocol = (rtf_flags & RTF_GATEWAY) ? MIB_IPPROTO_NETMGMT : MIB_IPPROTO_LOCAL; entry.loopback = entry.protocol == MIB_IPPROTO_LOCAL && entry.prefix_len == 32;
From: Paul Gofman pgofman@codeweavers.com
--- dlls/nsiproxy.sys/ip.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/dlls/nsiproxy.sys/ip.c b/dlls/nsiproxy.sys/ip.c index 388a819d5e9..3e24ba44c56 100644 --- a/dlls/nsiproxy.sys/ip.c +++ b/dlls/nsiproxy.sys/ip.c @@ -1820,7 +1820,7 @@ static NTSTATUS ipv6_forward_enumerate_all( void *key_data, UINT key_size, void rtf_flags = strtoul( ptr + 1, &ptr, 16); if (!(rtf_flags & RTF_UP)) continue; entry.protocol = (rtf_flags & RTF_GATEWAY) ? MIB_IPPROTO_NETMGMT : MIB_IPPROTO_LOCAL; - entry.loopback = entry.protocol == MIB_IPPROTO_LOCAL && entry.prefix_len == 32; + entry.loopback = entry.prefix_len == 128 && IN6_IS_ADDR_LOOPBACK(&entry.prefix);
while (isspace( *ptr )) ptr++; end = ptr;
From: Paul Gofman pgofman@codeweavers.com
--- dlls/iphlpapi/iphlpapi_main.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/dlls/iphlpapi/iphlpapi_main.c b/dlls/iphlpapi/iphlpapi_main.c index 0abf8c55299..1231b98e656 100644 --- a/dlls/iphlpapi/iphlpapi_main.c +++ b/dlls/iphlpapi/iphlpapi_main.c @@ -3654,19 +3654,16 @@ static void unicast_row_fill( MIB_UNICASTIPADDRESS_ROW *row, USHORT fam, void *k struct nsi_ipv4_unicast_key *key4 = (struct nsi_ipv4_unicast_key *)key; struct nsi_ipv6_unicast_key *key6 = (struct nsi_ipv6_unicast_key *)key;
+ memset( &row->Address, 0, sizeof(row->Address) ); if (fam == AF_INET) { row->Address.Ipv4.sin_family = fam; - row->Address.Ipv4.sin_port = 0; row->Address.Ipv4.sin_addr = key4->addr; - memset( row->Address.Ipv4.sin_zero, 0, sizeof(row->Address.Ipv4.sin_zero) ); row->InterfaceLuid.Value = key4->luid.Value; } else { row->Address.Ipv6.sin6_family = fam; - row->Address.Ipv6.sin6_port = 0; - row->Address.Ipv6.sin6_flowinfo = 0; row->Address.Ipv6.sin6_addr = key6->addr; row->Address.Ipv6.sin6_scope_id = dyn->scope_id; row->InterfaceLuid.Value = key6->luid.Value;
From: Paul Gofman pgofman@codeweavers.com
--- dlls/iphlpapi/iphlpapi_main.c | 195 ++++++++++++++++++++++++++++++++-- include/netioapi.h | 3 + 2 files changed, 187 insertions(+), 11 deletions(-)
diff --git a/dlls/iphlpapi/iphlpapi_main.c b/dlls/iphlpapi/iphlpapi_main.c index 1231b98e656..85dce3f9e44 100644 --- a/dlls/iphlpapi/iphlpapi_main.c +++ b/dlls/iphlpapi/iphlpapi_main.c @@ -4681,24 +4681,197 @@ DWORD WINAPI GetIpInterfaceEntry( MIB_IPINTERFACE_ROW *row ) return ERROR_SUCCESS; }
+static BOOL match_ip_address_with_prefix( const SOCKADDR_INET *addr, const IP_ADDRESS_PREFIX *pfx ) +{ + const BYTE *p1, *p2; + unsigned int len; + BYTE mask; + + if (addr->si_family != pfx->Prefix.si_family) return FALSE; + if (!(len = pfx->PrefixLength)) return TRUE; + + if (addr->si_family == AF_INET6) + { + if (len > 128) return FALSE; + p1 = (const BYTE *)&addr->Ipv6.sin6_addr; + p2 = (const BYTE *)&pfx->Prefix.Ipv6.sin6_addr; + } + else + { + if (len > 32) return FALSE; + p1 = (const BYTE *)&addr->Ipv4.sin_addr; + p2 = (const BYTE *)&pfx->Prefix.Ipv4.sin_addr; + } + if (memcmp( p1, p2, len / 8 )) return FALSE; + mask = 0xffu << (8 - (len % 8)); + if (!mask) return TRUE; + return (p1[len / 8] & mask) == (p2[len / 8] & mask); +} + +static MIB_UNICASTIPADDRESS_ROW *find_first_matching_unicast_addr( MIB_UNICASTIPADDRESS_TABLE *uni, BOOL v6, + const SOCKADDR_INET *src, const SOCKADDR_INET *dst, + NET_IFINDEX if_index ) +{ + unsigned int i; + + for (i = 0; i < uni->NumEntries; ++i) + { + if (if_index && uni->Table[i].InterfaceIndex != if_index) continue; + if (src) + { + if (v6) + { + if (src->Ipv6.sin6_scope_id && IN6_IS_ADDR_LINKLOCAL(&src->Ipv6.sin6_addr) + && src->Ipv6.sin6_scope_id != uni->Table[i].InterfaceIndex) continue; + if (memcmp( &src->Ipv6.sin6_addr, &uni->Table[i].Address.Ipv6.sin6_addr, sizeof(src->Ipv6.sin6_addr) )) + continue; + } + else if (src->Ipv4.sin_addr.s_addr != uni->Table[i].Address.Ipv4.sin_addr.s_addr) continue; + } + if (v6 && dst) + { + if (IN6_IS_ADDR_LINKLOCAL(&dst->Ipv6.sin6_addr) + != IN6_IS_ADDR_LINKLOCAL(&uni->Table[i].Address.Ipv6.sin6_addr)) + continue; + } + return &uni->Table[i]; + } + return NULL; +} + /****************************************************************** * GetBestRoute2 (IPHLPAPI.@) */ -DWORD WINAPI GetBestRoute2(NET_LUID *luid, NET_IFINDEX index, - const SOCKADDR_INET *source, const SOCKADDR_INET *destination, - ULONG options, PMIB_IPFORWARD_ROW2 bestroute, - SOCKADDR_INET *bestaddress) -{ - static int once; +DWORD WINAPI GetBestRoute2( NET_LUID *luid, NET_IFINDEX index, + const SOCKADDR_INET *src, const SOCKADDR_INET *dst, + ULONG options, PMIB_IPFORWARD_ROW2 bestroute, + SOCKADDR_INET *bestaddress ) +{ + MIB_UNICASTIPADDRESS_ROW *uni_row = NULL; + MIB_UNICASTIPADDRESS_TABLE *uni; + MIB_IPFORWARD_TABLE2 *fwd; + unsigned int i, best_idx; + int max_prefix_len; + DWORD ret; + BOOL v6; + + TRACE( "(%p, %ld, %p, %p, 0x%08lx, %p, %p).\n", luid, index, src, dst, options, bestroute, bestaddress ); + + if (!dst || !bestroute || !bestaddress) + return ERROR_INVALID_PARAMETER; + + memset( bestroute, 0, sizeof(*bestroute) ); + memset( bestaddress, 0, sizeof(*bestaddress) );
- if (!once++) - FIXME("(%p, %ld, %p, %p, 0x%08lx, %p, %p): stub\n", luid, index, source, - destination, options, bestroute, bestaddress); + if (dst->si_family != AF_INET && dst->si_family != AF_INET6) return ERROR_INVALID_PARAMETER; + v6 = dst->si_family == AF_INET6; + if (src) + { + if (src->si_family != dst->si_family) src = NULL; + else if (v6 && IN6_IS_ADDR_UNSPECIFIED(&src->Ipv6.sin6_addr)) src = NULL; + else if (!v6 && !src->Ipv4.sin_addr.s_addr) src = NULL; + }
- if (!destination || !bestroute || !bestaddress) + if (v6 && !IN6_IS_ADDR_LINKLOCAL(&dst->Ipv6.sin6_addr) && dst->Ipv6.sin6_scope_id) + return ERROR_INVALID_PARAMETER; + if (v6 && src && !IN6_IS_ADDR_LINKLOCAL(&src->Ipv6.sin6_addr) && src->Ipv6.sin6_scope_id) return ERROR_INVALID_PARAMETER;
- return ERROR_NOT_SUPPORTED; + if ((ret = GetUnicastIpAddressTable( dst->si_family, &uni ))) return ret; + if ((ret = GetIpForwardTable2( dst->si_family, &fwd ))) + { + FreeMibTable( &uni ); + return ret; + } + + if (!luid && index) + { + for (i = 0; i < uni->NumEntries; ++i) + { + if (uni->Table[i].InterfaceIndex == index) break; + } + if (i == uni->NumEntries) + { + ret = ERROR_FILE_NOT_FOUND; + goto done; + } + luid = &uni->Table[i].InterfaceLuid; + } + if (src && !(uni_row = find_first_matching_unicast_addr( uni, v6, src, NULL, 0 ))) + { + ret = ERROR_NOT_FOUND; + goto done; + } + if (!uni_row && luid && luid->Value) + { + for (i = 0; i < uni->NumEntries; ++i) + { + if (uni->Table[i].InterfaceLuid.Value == luid->Value) break; + } + if (i == uni->NumEntries) + { + ret = ERROR_NOT_FOUND; + goto done; + } + uni_row = &uni->Table[i]; + } + + if (uni_row) index = uni_row->InterfaceIndex; + else index = 0; + + if (v6) + { + if (!index) index = dst->Ipv6.sin6_scope_id; + if (IN6_IS_ADDR_LINKLOCAL(&dst->Ipv6.sin6_addr) && dst->Ipv6.sin6_scope_id + && dst->Ipv6.sin6_scope_id != index) + { + ret = ERROR_INVALID_PARAMETER; + goto done; + } + } + + max_prefix_len = -1; + best_idx = 0; + for (i = 0; i < fwd->NumEntries; ++i) + { + if (index && fwd->Table[i].InterfaceIndex != index) continue; + + if (match_ip_address_with_prefix( dst, &fwd->Table[i].DestinationPrefix ) + && max_prefix_len < fwd->Table[i].DestinationPrefix.PrefixLength ) + { + max_prefix_len = fwd->Table[i].DestinationPrefix.PrefixLength; + best_idx = i; + } + } + + if (max_prefix_len == -1) + { + ret = ERROR_NETWORK_UNREACHABLE; + goto done; + } + index = fwd->Table[best_idx].InterfaceIndex; + if (!fwd->Table[best_idx].Loopback && ((v6 && IN6_IS_ADDR_LOOPBACK(&dst->Ipv6.sin6_addr)) + || (!v6 && dst->Ipv4.sin_addr.S_un.S_un_b.s_b1 == 127))) + { + ret = ERROR_INVALID_PARAMETER; + goto done; + } + + if (!(uni_row = find_first_matching_unicast_addr( uni, v6, src, dst, index ))) + { + WARN( "Could not find source address.\n" ); + ret = ERROR_NOT_FOUND; + goto done; + } + *bestaddress = uni_row->Address; + *bestroute = fwd->Table[best_idx]; + + ret = ERROR_SUCCESS; +done: + FreeMibTable( &fwd ); + FreeMibTable( &uni ); + TRACE( "-> %lu.\n", ret ); + return ret; }
/****************************************************************** diff --git a/include/netioapi.h b/include/netioapi.h index 09824f946e4..6ace025c8f0 100644 --- a/include/netioapi.h +++ b/include/netioapi.h @@ -283,6 +283,9 @@ IPHLPAPI_DLL_LINKAGE DWORD WINAPI GetIpNetTable2(ADDRESS_FAMILY,MIB_IPNET_TABLE2 IPHLPAPI_DLL_LINKAGE DWORD WINAPI GetUnicastIpAddressEntry(MIB_UNICASTIPADDRESS_ROW*); IPHLPAPI_DLL_LINKAGE DWORD WINAPI GetUnicastIpAddressTable(ADDRESS_FAMILY,MIB_UNICASTIPADDRESS_TABLE**); IPHLPAPI_DLL_LINKAGE DWORD WINAPI SetCurrentThreadCompartmentId(NET_IF_COMPARTMENT_ID); +IPHLPAPI_DLL_LINKAGE DWORD WINAPI GetBestRoute2(NET_LUID *luid, NET_IFINDEX index, const SOCKADDR_INET *source, + const SOCKADDR_INET *destination, ULONG options, + PMIB_IPFORWARD_ROW2 bestroute, SOCKADDR_INET *bestaddress); IPHLPAPI_DLL_LINKAGE PCHAR WINAPI if_indextoname(NET_IFINDEX,PCHAR); IPHLPAPI_DLL_LINKAGE NET_IFINDEX WINAPI if_nametoindex(PCSTR);
From: Paul Gofman pgofman@codeweavers.com
--- dlls/iphlpapi/iphlpapi_main.c | 30 ++++++++++++------------------ 1 file changed, 12 insertions(+), 18 deletions(-)
diff --git a/dlls/iphlpapi/iphlpapi_main.c b/dlls/iphlpapi/iphlpapi_main.c index 85dce3f9e44..ba0e954881a 100644 --- a/dlls/iphlpapi/iphlpapi_main.c +++ b/dlls/iphlpapi/iphlpapi_main.c @@ -1389,27 +1389,21 @@ DWORD WINAPI GetBestInterface(IPAddr dwDestAddr, PDWORD pdwBestIfIndex) * Success: NO_ERROR * Failure: error code from winerror.h */ -DWORD WINAPI GetBestInterfaceEx(struct sockaddr *pDestAddr, PDWORD pdwBestIfIndex) +DWORD WINAPI GetBestInterfaceEx( struct sockaddr *pDestAddr, PDWORD pdwBestIfIndex ) { - DWORD ret; + SOCKADDR_INET best_address; + MIB_IPFORWARD_ROW2 row; + DWORD ret;
- TRACE("pDestAddr %p, pdwBestIfIndex %p\n", pDestAddr, pdwBestIfIndex); - if (!pDestAddr || !pdwBestIfIndex) - ret = ERROR_INVALID_PARAMETER; - else { - MIB_IPFORWARDROW ipRow; + TRACE( "pDestAddr %p, pdwBestIfIndex %p\n", pDestAddr, pdwBestIfIndex );
- if (pDestAddr->sa_family == AF_INET) { - ret = GetBestRoute(((struct sockaddr_in *)pDestAddr)->sin_addr.S_un.S_addr, 0, &ipRow); - if (ret == ERROR_SUCCESS) - *pdwBestIfIndex = ipRow.dwForwardIfIndex; - } else { - FIXME("address family %d not supported\n", pDestAddr->sa_family); - ret = ERROR_NOT_SUPPORTED; - } - } - TRACE("returning %ld\n", ret); - return ret; + if (!pDestAddr || !pdwBestIfIndex) return ERROR_INVALID_PARAMETER; + + ret = GetBestRoute2( NULL, 0, NULL, (const SOCKADDR_INET *)pDestAddr, 0, &row, &best_address ); + if (!ret) *pdwBestIfIndex = row.InterfaceIndex; + + TRACE( "returning %ld\n", ret ); + return ret; }
From: Paul Gofman pgofman@codeweavers.com
--- dlls/iphlpapi/tests/iphlpapi.c | 485 +++++++++++++++++++++++++++++++++ 1 file changed, 485 insertions(+)
diff --git a/dlls/iphlpapi/tests/iphlpapi.c b/dlls/iphlpapi/tests/iphlpapi.c index ebd69a37ad8..49c3059b5df 100644 --- a/dlls/iphlpapi/tests/iphlpapi.c +++ b/dlls/iphlpapi/tests/iphlpapi.c @@ -3488,6 +3488,490 @@ static void test_GetIpInterface(void) FreeMibTable( if_table ); }
+static MIB_IPFORWARD_ROW2 *find_ipforward_row( MIB_IPFORWARD_TABLE2 *table, DWORD ifindex ) +{ + unsigned int i; + + for (i = 0; i < table->NumEntries; ++i) + { + if (ifindex == table->Table[i].InterfaceIndex) return &table->Table[i]; + } + return NULL; +} + +static void test_best_routes(void) +{ + static const IN6_ADDR link_local_prefix = {{ IN6ADDR_LINKLOCALPREFIX_INIT }}; + + DWORD ret, index, link_local_index = ~0u, loopback_index = ~0u, default_route_index = ~0u; + struct sockaddr_in6 dst6, src6, best6, link_local_addr6, global_addr6; + struct sockaddr_in dst4, src4, global_addr4; + NET_LUID link_local_luid = { 0 }, luid; + MIB_UNICASTIPADDRESS_ROW uni_row; + MIB_IPFORWARD_ROW2 fwd_row, *r; + MIB_IPFORWARD_TABLE2 *table; + char s[256], s2[256]; + SOCKADDR_INET best4; + unsigned int i; + + memset( &dst6, 0, sizeof(src6) ); + dst6.sin6_family = AF_INET6; + ret = inet_pton( AF_INET6, "::1", &dst6.sin6_addr); + ok(ret, "got error %u.\n", WSAGetLastError()); + ret = GetBestRoute2( NULL, 0, NULL, (SOCKADDR_INET *)&dst6, 0, NULL, (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_INVALID_PARAMETER, "got error %lu.\n", ret ); + ret = GetBestRoute2( NULL, 0, NULL, NULL, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_INVALID_PARAMETER, "got error %lu.\n", ret ); + ret = GetBestRoute2( NULL, 0, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, NULL ); + ok( ret == ERROR_INVALID_PARAMETER, "got error %lu.\n", ret ); + + ret = GetIpForwardTable2( AF_INET6, &table ); + ok( !ret, "got error %lu.\n", ret ); + + for (i = 0; i < table->NumEntries; ++i) + { + if (IN6_IS_ADDR_LINKLOCAL(&table->Table[i].DestinationPrefix.Prefix.Ipv6.sin6_addr)) + { + if (link_local_index == ~0u) + { + link_local_index = table->Table[i].InterfaceIndex; + link_local_luid = table->Table[i].InterfaceLuid; + } + } + if (IN6_IS_ADDR_LOOPBACK(&table->Table[i].DestinationPrefix.Prefix.Ipv6.sin6_addr)) + loopback_index = table->Table[i].InterfaceIndex; + } + ok( link_local_index != ~0u, "could not find any link local route.\n" ); + ok( loopback_index != ~0u, "could not find loopback route.\n" ); + + /* Test with link local address. */ + memset( &dst6, 0, sizeof(dst6) ); + dst6.sin6_family = AF_INET6; + dst6.sin6_addr = link_local_prefix; + dst6.sin6_scope_id = link_local_index; + dst6.sin6_addr.u.Byte[15] = 1; + ret = GetBestInterfaceEx( (struct sockaddr *)&dst6, &index ); + ok( !ret, "got error %lu.\n", ret ); + ok( index == link_local_index, "got %lu, expected %lu.\n", index, link_local_index ); + + memset( &fwd_row, 0xcc, sizeof(fwd_row) ); + ret = GetBestRoute2( NULL, 0xdeadbeef, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_FILE_NOT_FOUND, "got error %lu.\n", ret ); + ok( !fwd_row.InterfaceIndex, "got %#lx.\n", fwd_row.InterfaceIndex ); + + memset( &fwd_row, 0xcc, sizeof(fwd_row) ); + dst6.sin6_scope_id = loopback_index; + ret = GetBestRoute2( NULL, link_local_index, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_INVALID_PARAMETER, "got error %lu.\n", ret ); + ok( !fwd_row.InterfaceIndex, "got %#lx.\n", fwd_row.InterfaceIndex ); + + memset( &fwd_row, 0xcc, sizeof(fwd_row) ); + dst6.sin6_scope_id = link_local_index; + ret = GetBestRoute2( NULL, loopback_index, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_INVALID_PARAMETER, "got error %lu.\n", ret ); + ok( !fwd_row.InterfaceIndex, "got %#lx.\n", fwd_row.InterfaceIndex ); + + memset( &fwd_row, 0xcc, sizeof(fwd_row) ); + dst6.sin6_scope_id = 0xdeadbeef; + ret = GetBestRoute2( NULL, link_local_index, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_INVALID_PARAMETER, "got error %lu.\n", ret ); + ok( !fwd_row.InterfaceIndex, "got %#lx.\n", fwd_row.InterfaceIndex ); + + dst6.sin6_scope_id = link_local_index; + + memset( &fwd_row, 0xcc, sizeof(fwd_row) ); + memset( &best6, 0xcc, sizeof(best6) ); + ret = GetBestRoute2( NULL, link_local_index, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == link_local_index, "got %lu, expected %lu.\n", fwd_row.InterfaceIndex, link_local_index ); + ok( !fwd_row.Loopback, "got %d.\n", fwd_row.Loopback ); + ok( IN6_IS_ADDR_LINKLOCAL(&fwd_row.DestinationPrefix.Prefix.Ipv6.sin6_addr), "expected link local prefix.\n" ); + ok( IN6_IS_ADDR_UNSPECIFIED(&fwd_row.NextHop.Ipv6.sin6_addr), "expected unspecifed address.\n" ); + ok( best6.sin6_family == AF_INET6, "got %u.\n", best6.sin6_family ); + ok( best6.sin6_scope_id == link_local_index, "got %lu, expected %lu.\n", best6.sin6_scope_id, link_local_index ); + memset( &uni_row, 0, sizeof(uni_row) ); + *(struct sockaddr_in6 *)&uni_row.Address = best6; + uni_row.InterfaceIndex = fwd_row.InterfaceIndex; + ret = GetUnicastIpAddressEntry( &uni_row ); + ok( !ret, "got error %lu.\n", ret ); + ok( !memcmp( &uni_row.Address, &best6, sizeof(best6) ), "got different address.\n" ); + link_local_addr6 = best6; + + memset( &fwd_row, 0xcc, sizeof(fwd_row) ); + dst6.sin6_scope_id = link_local_index; + ret = GetBestRoute2( &link_local_luid, 0xdeadbeef, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, + (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == link_local_index, "got %lu, expected %lu.\n", fwd_row.InterfaceIndex, link_local_index ); + ok( IN6_IS_ADDR_UNSPECIFIED(&fwd_row.NextHop.Ipv6.sin6_addr), "expected unspecifed address.\n" ); + + dst6.sin6_scope_id = link_local_index; + memset( &fwd_row, 0xcc, sizeof(fwd_row) ); + ret = GetBestRoute2( NULL, 0, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == link_local_index, "got %lu, expected %lu.\n", fwd_row.InterfaceIndex, link_local_index ); + ok( !fwd_row.Loopback, "got %d.\n", fwd_row.Loopback ); + + dst6.sin6_scope_id = 0; + memset( &fwd_row, 0xcc, sizeof(fwd_row) ); + ret = GetBestRoute2( NULL, link_local_index, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == link_local_index, "got %lu, expected %lu.\n", fwd_row.InterfaceIndex, link_local_index ); + ok( !fwd_row.Loopback, "got %d.\n", fwd_row.Loopback ); + ok( best6.sin6_scope_id == link_local_index, "got %lu, expected %lu.\n", best6.sin6_scope_id, link_local_index ); + ok( IN6_IS_ADDR_UNSPECIFIED(&fwd_row.NextHop.Ipv6.sin6_addr), "expected unspecifed address.\n" ); + + /* With both scope_id in destination address and interface unspecified Windows returns a row for a random + * matching route, not even necessarily a link local one. */ + dst6.sin6_scope_id = 0; + memset( &fwd_row, 0xcc, sizeof(fwd_row) ); + ret = GetBestRoute2( NULL, 0, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + r = find_ipforward_row( table, fwd_row.InterfaceIndex ); + ok( !!r, "got NULL.\n" ); + ok( best6.sin6_scope_id == fwd_row.InterfaceIndex, "got %lu, expected %lu.\n", best6.sin6_scope_id, + fwd_row.InterfaceIndex ); + ok( IN6_IS_ADDR_UNSPECIFIED(&fwd_row.NextHop.Ipv6.sin6_addr), "expected unspecifed address.\n" ); + + dst6.sin6_scope_id = 0; + ret = GetBestInterfaceEx( (struct sockaddr *)&dst6, &index ); + ok( !ret, "got error %lu.\n", ret ); + r = find_ipforward_row( table, index ); + ok( !!r, "got NULL.\n" ); + + memset( &src6, 0, sizeof(src6) ); + src6.sin6_family = AF_INET6; + ret = inet_pton( AF_INET6, "dead:beaf:dead:beaf::beaf", &src6.sin6_addr); + ok(ret, "got error %u.\n", WSAGetLastError()); + dst6.sin6_scope_id = 0; + ret = GetBestRoute2( NULL, 0, (SOCKADDR_INET *)&src6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_NOT_FOUND, "got error %lu.\n", ret ); + + ret = GetBestRoute2( NULL, 0, (SOCKADDR_INET *)&link_local_addr6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, + (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( best6.sin6_scope_id == link_local_index, "got %lu, expected %lu.\n", best6.sin6_scope_id, link_local_index ); + + dst6.sin6_scope_id = 0; + ret = GetBestRoute2( &link_local_luid, 0, (SOCKADDR_INET *)&src6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, + (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_NOT_FOUND, "got error %lu.\n", ret ); + + dst6.sin6_scope_id = link_local_index; + ret = GetBestRoute2( &link_local_luid, 0, (SOCKADDR_INET *)&link_local_addr6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, + (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( best6.sin6_scope_id == link_local_index, "got %lu, expected %lu.\n", best6.sin6_scope_id, link_local_index ); + + /* src address with non-matching or unknown family is ignored. */ + src6.sin6_family = AF_INET; + ret = GetBestRoute2( NULL, 0, (SOCKADDR_INET *)&src6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + src6.sin6_family = 0xbeed; + ret = GetBestRoute2( NULL, 0, (SOCKADDR_INET *)&src6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + + /* zero src address is ignored. */ + memset( &src6, 0, sizeof(src6) ); + src6.sin6_family = AF_INET6; + ret = GetBestRoute2( NULL, 0, (SOCKADDR_INET *)&src6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + + /* Specified source address not matching destination, result is weird. */ + memset( &src6, 0, sizeof(src6) ); + src6.sin6_family = AF_INET6; + ret = inet_pton( AF_INET6, "::1", &src6.sin6_addr); + ok(ret, "got error %u.\n", WSAGetLastError()); + dst6.sin6_scope_id = 0; + memset( &best6, 0xcc, sizeof(best6) ); + memset( &fwd_row, 0xcc, sizeof(fwd_row) ); + ret = GetBestRoute2( &link_local_luid, 0, (SOCKADDR_INET *)&src6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, + (SOCKADDR_INET *)&best6 ); + todo_wine ok( !ret, "got error %lu.\n", ret ); + todo_wine ok( !memcmp( &src6, &best6, sizeof(best6) ), "got different address %s.\n", + inet_ntop( AF_INET6, &best6.sin6_addr, s, sizeof(s) )); + ok( !fwd_row.InterfaceIndex, "got %lu.\n", fwd_row.InterfaceIndex ); + ok( IN6_IS_ADDR_UNSPECIFIED(&fwd_row.DestinationPrefix.Prefix.Ipv6.sin6_addr), "expected unspecifed address.\n" ); + + /* Specified source address takes precedence over specified interface. */ + dst6.sin6_scope_id = 0; + memset( &best6, 0xcc, sizeof(best6) ); + memset( &fwd_row, 0xcc, sizeof(fwd_row) ); + src6 = link_local_addr6; + src6.sin6_port = 1; + ret = GetBestRoute2( &link_local_luid, loopback_index, (SOCKADDR_INET *)&src6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, + (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == link_local_index, "got %lu, expected %lu.\n", fwd_row.InterfaceIndex, link_local_index ); + ok( !fwd_row.Loopback, "got %d.\n", fwd_row.Loopback ); + ok( best6.sin6_scope_id == link_local_index, "got %lu, expected %lu.\n", best6.sin6_scope_id, link_local_index ); + ok( !memcmp( &best6, &link_local_addr6, sizeof(best6) ), "got different address.\n" ); + + src6.sin6_scope_id = 0; + ret = GetBestRoute2( NULL, loopback_index, (SOCKADDR_INET *)&src6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, + (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == link_local_index, "got %lu, expected %lu.\n", fwd_row.InterfaceIndex, link_local_index ); + + src6.sin6_scope_id = 0xffff; + ret = GetBestRoute2( NULL, loopback_index, (SOCKADDR_INET *)&src6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, + (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_NOT_FOUND, "got error %lu.\n", ret ); + ok( !fwd_row.InterfaceIndex, "got %lu, expected %lu.\n", fwd_row.InterfaceIndex, link_local_index ); + + src6.sin6_scope_id = link_local_index; + ret = GetBestRoute2( NULL, loopback_index, (SOCKADDR_INET *)&src6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, + (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == link_local_index, "got %lu, expected %lu.\n", fwd_row.InterfaceIndex, link_local_index ); + + luid.Value = 0xdeadbeef; + ret = GetBestRoute2( &luid, 0xdeadbeef, (SOCKADDR_INET *)&link_local_addr6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, + (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == link_local_index, "got %lu, expected %lu.\n", fwd_row.InterfaceIndex, link_local_index ); + + /* ... but if iface index is specified without luid that will still fail for invalid index. */ + ret = GetBestRoute2( NULL, 0xdeadbeef, (SOCKADDR_INET *)&link_local_addr6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, + (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_FILE_NOT_FOUND, "got error %lu.\n", ret ); + + luid.Value = 0xdeadbeef; + ret = GetBestRoute2( &luid, 0xdeadbeef, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_NOT_FOUND, "got error %lu.\n", ret ); + + /* Test with global address. */ + ret = inet_pton( AF_INET6, "2ead:beaf:dead:beaf::beaf", &dst6.sin6_addr); + ok(ret, "got error %u.\n", WSAGetLastError()); + + dst6.sin6_scope_id = 0xdeadbeef; + ret = GetBestInterfaceEx( (struct sockaddr *)&dst6, &index ); + ok( ret == ERROR_INVALID_PARAMETER, "got error %lu.\n", ret ); + + dst6.sin6_scope_id = link_local_index; + ret = GetBestInterfaceEx( (struct sockaddr *)&dst6, &index ); + ok( ret == ERROR_INVALID_PARAMETER, "got error %lu.\n", ret ); + + dst6.sin6_scope_id = 0; + ret = GetBestInterfaceEx( (struct sockaddr *)&dst6, &index ); + if (ret == ERROR_NETWORK_UNREACHABLE) + { + skip( "Global IPv6 address is unreachable.\n" ); + goto loopback_ipv6; + } + ok( !ret, "got error %lu.\n", ret ); + r = find_ipforward_row( table, index ); + ok( !!r, "got NULL.\n" ); + default_route_index = index; + dst6.sin6_scope_id = index; + ret = GetBestInterfaceEx( (struct sockaddr *)&dst6, &index ); + ok( ret == ERROR_INVALID_PARAMETER, "got error %lu.\n", ret ); + + ret = GetBestRoute2( NULL, 0, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_INVALID_PARAMETER, "got error %lu.\n", ret ); + + dst6.sin6_scope_id = 0; + ret = GetBestRoute2( NULL, 0, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == index, "got %lu, %lu.\n", fwd_row.InterfaceIndex, index ); + ok( !IN6_IS_ADDR_UNSPECIFIED(&fwd_row.NextHop.Ipv6.sin6_addr) + || broken( IN6_IS_ADDR_UNSPECIFIED(&fwd_row.NextHop.Ipv6.sin6_addr) /* Win10 1507-1709 */), + "got unspecified address.\n" ); + + ret = GetBestRoute2( NULL, index, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == index, "got %lu, %lu.\n", fwd_row.InterfaceIndex, index ); + global_addr6 = best6; + + memset( &src6, 0, sizeof(src6) ); + src6.sin6_family = AF_INET6; + ret = inet_pton( AF_INET6, "dead:beaf:dead:beaf::beaf", &src6.sin6_addr); + ok(ret, "got error %u.\n", WSAGetLastError()); + + ret = GetBestRoute2( NULL, 0, (SOCKADDR_INET *)&src6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_NOT_FOUND, "got error %lu.\n", ret ); + + src6 = global_addr6; + src6.sin6_port = 28; + ret = GetBestRoute2( NULL, link_local_index, (SOCKADDR_INET *)&src6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, + (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == index, "got %lu, %lu.\n", fwd_row.InterfaceIndex, index ); + ok( !best6.sin6_scope_id, "got %lu.\n", best6.sin6_scope_id ); + ok( !memcmp( &global_addr6, &best6, sizeof(best6) ), "got different address.\n" ); + ok( !IN6_IS_ADDR_UNSPECIFIED(&fwd_row.NextHop.Ipv6.sin6_addr) + || broken( IN6_IS_ADDR_UNSPECIFIED(&fwd_row.NextHop.Ipv6.sin6_addr) /* Win10 1507-1709 */), + "got unspecified address.\n" ); + + src6.sin6_scope_id = 1; + ret = GetBestRoute2( NULL, link_local_index, (SOCKADDR_INET *)&src6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, + (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_INVALID_PARAMETER, "got error %lu.\n", ret ); + + memset( &src6, 0, sizeof(src6) ); + src6.sin6_family = AF_INET6; + ret = inet_pton( AF_INET6, "::1", &src6.sin6_addr); + ok(ret, "got error %u.\n", WSAGetLastError()); + memset( &best6, 0xcc, sizeof(best6) ); + memset( &fwd_row, 0xcc, sizeof(fwd_row) ); + ret = GetBestRoute2( NULL, 0, (SOCKADDR_INET *)&src6, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_NETWORK_UNREACHABLE, "got error %lu.\n", ret ); + ok( !fwd_row.InterfaceIndex, "got %lu.\n", fwd_row.InterfaceIndex ); + ok( !fwd_row.InterfaceLuid.Value, "got %#I64x.\n", fwd_row.InterfaceLuid.Value ); + ok( IN6_IS_ADDR_UNSPECIFIED(&best6.sin6_addr), "expected unspecifed address.\n" ); + ok( IN6_IS_ADDR_UNSPECIFIED(&fwd_row.NextHop.Ipv6.sin6_addr), "expected unspecifed address.\n" ); + + luid.Value = 0; + ret = GetBestRoute2( &luid, 0xdeadbeef, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == index, "got %lu, %lu.\n", fwd_row.InterfaceIndex, index ); + ok( !best6.sin6_scope_id, "got %lu.\n", best6.sin6_scope_id ); + memset( &uni_row, 0, sizeof(uni_row) ); + *(struct sockaddr_in6 *)&uni_row.Address = best6; + uni_row.InterfaceIndex = fwd_row.InterfaceIndex; + ret = GetUnicastIpAddressEntry( &uni_row ); + ok( !ret, "got error %lu.\n", ret ); + ok( !memcmp( &uni_row.Address, &best6, sizeof(best6) ), "got different address.\n" ); + ok( !IN6_IS_ADDR_UNSPECIFIED(&fwd_row.NextHop.Ipv6.sin6_addr) + || broken( IN6_IS_ADDR_UNSPECIFIED(&fwd_row.NextHop.Ipv6.sin6_addr) /* Win10 1507-1709 */), + "got unspecified address.\n" ); + + memset( &fwd_row, 0xcc, sizeof(fwd_row) ); + memset( &best6, 0xcc, sizeof(best6) ); + ret = GetBestRoute2( NULL, loopback_index, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_NETWORK_UNREACHABLE, "got error %lu.\n", ret ); + ok( !fwd_row.InterfaceIndex, "got %#lx.\n", fwd_row.InterfaceIndex ); + ok( !best6.sin6_scope_id, "got %lu.\n", best6.sin6_scope_id ); + ok( IN6_IS_ADDR_UNSPECIFIED(&fwd_row.NextHop.Ipv6.sin6_addr), "expected unspecifed address.\n" ); + + memset( &dst6.sin6_addr, 0, sizeof(dst6.sin6_addr) ); + ret = GetBestRoute2( NULL, 0, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == index, "got %lu, %lu.\n", fwd_row.InterfaceIndex, index ); + ok( !memcmp( &global_addr6, &best6, sizeof(best6) ), "got different address.\n" ); + + /* Test with loopback address. */ +loopback_ipv6: + ret = inet_pton( AF_INET6, "::1", &dst6.sin6_addr); + ok(ret, "got error %u.\n", WSAGetLastError()); + dst6.sin6_scope_id = loopback_index; + ret = GetBestInterfaceEx( (struct sockaddr *)&dst6, &index ); + ok( ret == ERROR_INVALID_PARAMETER, "got error %lu.\n", ret ); + + dst6.sin6_scope_id = 0; + ret = GetBestInterfaceEx( (struct sockaddr *)&dst6, &index ); + ok( !ret, "got error %lu.\n", ret ); + ok( index == loopback_index, "got %lu, expected %lu.\n", index, loopback_index ); + ok( !best6.sin6_scope_id, "got %lu.\n", best6.sin6_scope_id ); + + dst6.sin6_scope_id = loopback_index; + ret = GetBestRoute2( NULL, loopback_index, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_INVALID_PARAMETER, "got error %lu.\n", ret ); + + dst6.sin6_scope_id = 0; + ret = GetBestRoute2( NULL, loopback_index, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == loopback_index, "got %lu, %lu.\n", fwd_row.InterfaceIndex, loopback_index ); + ret = GetBestRoute2( NULL, 0, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, (SOCKADDR_INET *)&best6 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == loopback_index, "got %lu, %lu.\n", fwd_row.InterfaceIndex, loopback_index ); + ok( !best6.sin6_scope_id, "got %lu.\n", best6.sin6_scope_id ); + ok( !memcmp( &dst6, &best6, sizeof(best6) ), "got different address.\n" ); + + memset( &best6, 0xcc, sizeof(best6) ); + if (default_route_index != ~0u) + { + ok( default_route_index != loopback_index, "got same interfaces.\n" ); + ret = GetBestRoute2( NULL, default_route_index, NULL, (SOCKADDR_INET *)&dst6, 0, &fwd_row, + (SOCKADDR_INET *)&best6 ); + ok( ret == ERROR_INVALID_PARAMETER, "got error %lu.\n", ret ); + ok( !fwd_row.InterfaceIndex, "got %#lx.\n", fwd_row.InterfaceIndex ); + } + + /* Test with ipv4 */ + memset( &dst4, 0xcc, sizeof(dst4) ); + dst4.sin_family = AF_INET; + ret = inet_pton( AF_INET, "25.25.0.0", &dst4.sin_addr); + ok(ret, "got error %u.\n", WSAGetLastError()); + + ret = GetBestInterfaceEx( (struct sockaddr *)&dst4, &index ); + if (ret == ERROR_NETWORK_UNREACHABLE) + { + skip( "Global IPv4 address is unreachable.\n" ); + goto done; + } + ok( !ret, "got error %lu.\n", ret ); + default_route_index = index; + + memset( &fwd_row, 0xcc, sizeof(fwd_row) ); + memset( &best4, 0xcc, sizeof(best4) ); + ret = GetBestRoute2( NULL, default_route_index, NULL, (SOCKADDR_INET *)&dst4, 0, &fwd_row, (SOCKADDR_INET *)&best4 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == default_route_index, "got %lu, expected %lu.\n", fwd_row.InterfaceIndex, + default_route_index ); + ok( fwd_row.NextHop.Ipv4.sin_addr.s_addr, "expected specified next hop.\n" ); + memset( &uni_row, 0, sizeof(uni_row) ); + *(struct sockaddr_in *)&uni_row.Address = best4.Ipv4; + uni_row.InterfaceIndex = fwd_row.InterfaceIndex; + ret = GetUnicastIpAddressEntry( &uni_row ); + ok( !ret, "got error %lu.\n", ret ); + ok( !memcmp( &uni_row.Address, &best4, sizeof(best4) ), "got different address, %s, %s.\n", + inet_ntop( AF_INET, &best4.Ipv4.sin_addr, s, sizeof(s) ), inet_ntop( AF_INET, + &uni_row.Address.Ipv4.sin_addr, s2, sizeof(s2) ) ); + /* GetBestRoute2 zeroes the whole SOCKADDR_INET, not just IPv4 part. */ + ok( !best4.Ipv6.sin6_addr.u.Word[7], "got %#x.\n", best4.Ipv6.sin6_addr.u.Word[7] ); + global_addr4 = best4.Ipv4; + + src4.sin_family = AF_INET; + ret = inet_pton( AF_INET, "127.0.0.1", &src4.sin_addr ); + ok(ret, "got error %u.\n", WSAGetLastError()); + memset( &best4, 0xcc, sizeof(best4) ); + ret = GetBestRoute2( NULL, 0, (SOCKADDR_INET *)&src4, (SOCKADDR_INET *)&dst4, 0, &fwd_row, (SOCKADDR_INET *)&best4 ); + ok( ret == ERROR_NETWORK_UNREACHABLE, "got error %lu.\n", ret ); + ok( !best4.Ipv4.sin_family, "got %u.\n", best4.Ipv4.sin_family ); + ok( !best4.Ipv6.sin6_addr.u.Word[7], "got %#x.\n", best4.Ipv6.sin6_addr.u.Word[7] ); + + src4 = global_addr4; + ret = GetBestRoute2( NULL, loopback_index, (SOCKADDR_INET *)&src4, (SOCKADDR_INET *)&dst4, 0, &fwd_row, + (SOCKADDR_INET *)&best4 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == default_route_index, "got %lu, expected %lu.\n", fwd_row.InterfaceIndex, + link_local_index ); + ok( fwd_row.NextHop.Ipv4.sin_addr.s_addr, "expected specified next hop.\n" ); + ok( !memcmp( &global_addr4, &best4, sizeof(best4.Ipv4) ), "got different address.\n" ); + + memset( &src4, 0xcc, sizeof(src4) ); + memset( &fwd_row, 0xcc, sizeof(fwd_row) ); + ret = GetBestRoute2( NULL, default_route_index, (SOCKADDR_INET *)&src4, (SOCKADDR_INET *)&dst4, 0, &fwd_row, + (SOCKADDR_INET *)&best4 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == default_route_index, "got %lu, expected %lu.\n", fwd_row.InterfaceIndex, + link_local_index ); + + src4 = best4.Ipv4; + ret = GetBestRoute2( NULL, default_route_index, (SOCKADDR_INET *)&src4, (SOCKADDR_INET *)&dst4, 0, &fwd_row, + (SOCKADDR_INET *)&best4 ); + ok( !ret, "got error %lu.\n", ret ); + ok( fwd_row.InterfaceIndex == default_route_index, "got %lu, expected %lu.\n", fwd_row.InterfaceIndex, + link_local_index ); + ok( fwd_row.NextHop.Ipv4.sin_addr.s_addr, "expected specified next hop.\n" ); + + ret = GetBestRoute2( NULL, loopback_index, NULL, (SOCKADDR_INET *)&dst4, 0, &fwd_row, (SOCKADDR_INET *)&best4 ); + ok( ret == ERROR_NETWORK_UNREACHABLE, "got error %lu.\n", ret ); + + ret = inet_pton( AF_INET, "127.0.0.1", &dst4.sin_addr); + ok(ret, "got error %u.\n", WSAGetLastError()); + ret = GetBestRoute2( NULL, default_route_index, NULL, (SOCKADDR_INET *)&dst4, 0, &fwd_row, (SOCKADDR_INET *)&best4 ); + ok( ret == ERROR_INVALID_PARAMETER, "got error %lu.\n", ret ); + + ret = GetBestRoute2( NULL, 0, NULL, (SOCKADDR_INET *)&dst4, 0, &fwd_row, (SOCKADDR_INET *)&best4 ); + ok( !ret, "got error %lu.\n", ret ); + ok( !fwd_row.NextHop.Ipv4.sin_addr.s_addr, "expected unspecified next hop.\n" ); + +done: + FreeMibTable( table ); +} + START_TEST(iphlpapi) { WSADATA wsa_data; @@ -3530,6 +4014,7 @@ START_TEST(iphlpapi) test_ConvertGuidToString(); test_compartments(); test_GetIpInterface(); + test_best_routes(); freeIPHlpApi(); }
From: Paul Gofman pgofman@codeweavers.com
--- dlls/iphlpapi/iphlpapi_main.c | 62 ++++++++++++++++++++++++++++++++--- 1 file changed, 58 insertions(+), 4 deletions(-)
diff --git a/dlls/iphlpapi/iphlpapi_main.c b/dlls/iphlpapi/iphlpapi_main.c index ba0e954881a..c80e8a16d81 100644 --- a/dlls/iphlpapi/iphlpapi_main.c +++ b/dlls/iphlpapi/iphlpapi_main.c @@ -4733,6 +4733,13 @@ static MIB_UNICASTIPADDRESS_ROW *find_first_matching_unicast_addr( MIB_UNICASTIP return NULL; }
+static BOOL is_addr_unspecified( const SOCKADDR_INET *addr, BOOL v6 ) +{ + if (v6 && IN6_IS_ADDR_UNSPECIFIED(&addr->Ipv6.sin6_addr)) return TRUE; + if (!v6 && !addr->Ipv4.sin_addr.s_addr) return TRUE; + return FALSE; +} + /****************************************************************** * GetBestRoute2 (IPHLPAPI.@) */ @@ -4761,9 +4768,8 @@ DWORD WINAPI GetBestRoute2( NET_LUID *luid, NET_IFINDEX index, v6 = dst->si_family == AF_INET6; if (src) { - if (src->si_family != dst->si_family) src = NULL; - else if (v6 && IN6_IS_ADDR_UNSPECIFIED(&src->Ipv6.sin6_addr)) src = NULL; - else if (!v6 && !src->Ipv4.sin_addr.s_addr) src = NULL; + if (src->si_family != dst->si_family) src = NULL; + else if (is_addr_unspecified( src, v6 )) src = NULL; }
if (v6 && !IN6_IS_ADDR_LINKLOCAL(&dst->Ipv6.sin6_addr) && dst->Ipv6.sin6_scope_id) @@ -4824,6 +4830,54 @@ DWORD WINAPI GetBestRoute2( NET_LUID *luid, NET_IFINDEX index, } }
+ uni_row = NULL; + if (!src && !(v6 && IN6_IS_ADDR_LINKLOCAL(&dst->Ipv6.sin6_addr))) + { + static const struct in6_addr ipv6_default_addr = {{{ 0x20, 0x01, 0x0d, 0xb8 }}}; + SOCKADDR_INET src_addr, dst_addr; + WORD ver = MAKEWORD (2, 2); + WSADATA data; + SOCKET s; + int len; + + WSAStartup ( ver, &data ); + if ((s = socket( dst->si_family, SOCK_DGRAM, IPPROTO_UDP )) == -1) goto skip_system_route; + dst_addr = *dst; + if (is_addr_unspecified( dst, v6 )) + { + /* GetBestRoute2() should return default route in this case while connect() while unspecified address for + * connect() has different semantics. So use some global IP address instead. */ + if (v6) dst_addr.Ipv6.sin6_addr = ipv6_default_addr; + else dst_addr.Ipv4.sin_addr.s_addr = 0x01010101; + } + if (connect( s, (struct sockaddr *)&dst_addr, sizeof(dst_addr) ) == -1) + { + WARN( "Resolving destination address failed.\n" ); + goto skip_system_route; + } + len = sizeof(src_addr); + if (getsockname( s, (struct sockaddr *)&src_addr, &len )) + { + WARN( "getsockname failed, error %d.\n", WSAGetLastError() ); + goto skip_system_route; + } + if (!(uni_row = find_first_matching_unicast_addr( uni, v6, &src_addr, &dst_addr, index ))) + { + WARN( "Could not find matching unicast addr for system route.\n" ); + goto skip_system_route; + } + if (index && uni_row->InterfaceIndex != index) + { + WARN( "Specified index %lu doesn't match system %lu.\n", index, uni_row->InterfaceIndex ); + uni_row = NULL; + goto skip_system_route; + } + index = uni_row->InterfaceIndex; +skip_system_route: + if (s != -1) closesocket(s); + WSACleanup(); + } + max_prefix_len = -1; best_idx = 0; for (i = 0; i < fwd->NumEntries; ++i) @@ -4851,7 +4905,7 @@ DWORD WINAPI GetBestRoute2( NET_LUID *luid, NET_IFINDEX index, goto done; }
- if (!(uni_row = find_first_matching_unicast_addr( uni, v6, src, dst, index ))) + if (!uni_row && !(uni_row = find_first_matching_unicast_addr( uni, v6, src, dst, index ))) { WARN( "Could not find source address.\n" ); ret = ERROR_NOT_FOUND;
- "nsiproxy.sys: Only enumerate active routes in ipv6_forward_enumerate_all() on Linux.": a trigger for that patch was some route present here in /proc/net/ipv6_route: ``` 00000000000000000000000000000000 00 00000000000000000000000000000000 00 00000000000000000000000000000000 ffffffff 00000001 00000000 00200200 lo ``` This is a route on loopback interface with metric 0xffffffff with network mask suggesting default route. That breaks forward table matching. I am not sure what this is for and where it comes from but this route doesn't have RTF_UP flag. I guess we should not enumerate any routes without RTF_UP, we don't seem to have an obvious way to return "non-up" routes in forward table;
- "nsiproxy.sys: Improve loopback detection in ipv6_forward_enumerate_all() on Linux.": the current logic never correctly flags loopback interface (due to erroneous prefix_len == 32 check); checking for MIB_IPPROTO_LOCAL also looks arbitrary to me. There is just one loopback reserved address for IPv6, I guess we may safely check the prefix address;
- "iphlpapi: Fully zero init address in unicast_row_fill().": currently there are some garbage values in the part of the address structure in the unicast address table; that was breaking my tests comparing addresses with memcmp() (while that works on Windows);
- "iphlpapi: Try to disambiguate addresses in GetBestRoute2() ...": that matters only in case of more complex network configurations when there are multiple source addresses attached to interfaces or multiple network interfaces advertising overlapping forward rules. That can easily configured at least on Linux. Linux has, e. g, explicit preferred source address in ip route table (for which I am not immediately finding a way to relay that through NSI tables). Resolving overlapping destination ambiguity is also complicated (and might probably be implementation specific). When there is a choice we should ideally return the route which matches what the underlying system would actually decide to use, so probing through a socket looks most straightforward to me. In case of any errors on that path it will fallback to finding some route based purely on the NSI forward and unicast tables.
There is also GetBestRoute() which is already implemented and which I didn't touch. It is not immediately straightforward to use GetBestRoute2() from it because it returns (and probably is based on) MIB_IPFORWARD_TABLE (vs MIB_IPFORWARD_TABLE2 in GetBestRoute2). There is seemingly no one to one correspondence between the two. While we have a test which suggests that number of entires in the two tables (in testGetIpForwardTable) is the same that test fails on up to date Windows 11 for me (the actual number of entires is different). So I left GetBestRoute() untouched for now.
Could you please split this MR after the first three commits?
Huw Davies (@huw) commented about include/netioapi.h:
IPHLPAPI_DLL_LINKAGE DWORD WINAPI GetUnicastIpAddressEntry(MIB_UNICASTIPADDRESS_ROW*); IPHLPAPI_DLL_LINKAGE DWORD WINAPI GetUnicastIpAddressTable(ADDRESS_FAMILY,MIB_UNICASTIPADDRESS_TABLE**); IPHLPAPI_DLL_LINKAGE DWORD WINAPI SetCurrentThreadCompartmentId(NET_IF_COMPARTMENT_ID); +IPHLPAPI_DLL_LINKAGE DWORD WINAPI GetBestRoute2(NET_LUID *luid, NET_IFINDEX index, const SOCKADDR_INET *source,
const SOCKADDR_INET *destination, ULONG options,PMIB_IPFORWARD_ROW2 bestroute, SOCKADDR_INET *bestaddress);
Could we keep this sorted alphabetically?
I have split off first 3 patches into https://gitlab.winehq.org/wine/wine/-/merge_requests/8994
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Huw Davies (＠huw) -
Paul Gofman
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Paul Gofman (＠gofman)