Huw Davies : iphlpapi: ConvertInterfaceLuidToNameW/NameToLuidW use names based on the luid's type and index.
Module: wine Branch: master Commit: d1787090328f11f555ef5ba662511aa592ddd1b6 URL: https://source.winehq.org/git/wine.git/?a=commit;h=d1787090328f11f555ef5ba66... Author: Huw Davies <huw(a)codeweavers.com> Date: Wed Jul 7 09:05:58 2021 +0100 iphlpapi: ConvertInterfaceLuidToNameW/NameToLuidW use names based on the luid's type and index. Signed-off-by: Huw Davies <huw(a)codeweavers.com> Signed-off-by: Alexandre Julliard <julliard(a)winehq.org> --- dlls/iphlpapi/iphlpapi_main.c | 98 ++++++++++++++++++++++++++++++++---------- dlls/iphlpapi/tests/iphlpapi.c | 50 ++++++++++++++++++--- 2 files changed, 118 insertions(+), 30 deletions(-) diff --git a/dlls/iphlpapi/iphlpapi_main.c b/dlls/iphlpapi/iphlpapi_main.c index e5dc1012cb0..13bfb81e7c9 100644 --- a/dlls/iphlpapi/iphlpapi_main.c +++ b/dlls/iphlpapi/iphlpapi_main.c @@ -3322,24 +3322,64 @@ DWORD WINAPI ConvertInterfaceLuidToNameA(const NET_LUID *luid, char *name, SIZE_ return err; } +static const WCHAR otherW[] = {'o','t','h','e','r',0}; +static const WCHAR ethernetW[] = {'e','t','h','e','r','n','e','t',0}; +static const WCHAR tokenringW[] = {'t','o','k','e','n','r','i','n','g',0}; +static const WCHAR pppW[] = {'p','p','p',0}; +static const WCHAR loopbackW[] = {'l','o','o','p','b','a','c','k',0}; +static const WCHAR atmW[] = {'a','t','m',0}; +static const WCHAR wirelessW[] = {'w','i','r','e','l','e','s','s',0}; +static const WCHAR tunnelW[] = {'t','u','n','n','e','l',0}; +static const WCHAR ieee1394W[] = {'i','e','e','e','1','3','9','4',0}; + +struct name_prefix +{ + const WCHAR *prefix; + DWORD type; +}; +static const struct name_prefix name_prefixes[] = +{ + { otherW, IF_TYPE_OTHER }, + { ethernetW, IF_TYPE_ETHERNET_CSMACD }, + { tokenringW, IF_TYPE_ISO88025_TOKENRING }, + { pppW, IF_TYPE_PPP }, + { loopbackW, IF_TYPE_SOFTWARE_LOOPBACK }, + { atmW, IF_TYPE_ATM }, + { wirelessW, IF_TYPE_IEEE80211 }, + { tunnelW, IF_TYPE_TUNNEL }, + { ieee1394W, IF_TYPE_IEEE1394 } +}; + /****************************************************************** * ConvertInterfaceLuidToNameW (IPHLPAPI.@) */ DWORD WINAPI ConvertInterfaceLuidToNameW(const NET_LUID *luid, WCHAR *name, SIZE_T len) { - DWORD ret; - MIB_IFROW row; + DWORD i, needed; + const WCHAR *prefix = NULL; + WCHAR buf[IF_MAX_STRING_SIZE + 1]; + static const WCHAR prefix_fmt[] = {'%','s','_','%','d',0}; + static const WCHAR unk_fmt[] = {'i','f','t','y','p','e','%','d','_','%','d',0}; - TRACE("(%p %p %u)\n", luid, name, (DWORD)len); + TRACE( "(%p %p %u)\n", luid, name, (DWORD)len ); if (!luid || !name) return ERROR_INVALID_PARAMETER; - row.dwIndex = luid->Info.NetLuidIndex; - if ((ret = GetIfEntry( &row ))) return ret; + for (i = 0; i < ARRAY_SIZE(name_prefixes); i++) + { + if (luid->Info.IfType == name_prefixes[i].type) + { + prefix = name_prefixes[i].prefix; + break; + } + } - if (len < strlenW( row.wszName ) + 1) return ERROR_NOT_ENOUGH_MEMORY; - strcpyW( name, row.wszName ); - return NO_ERROR; + if (prefix) needed = snprintfW( buf, len, prefix_fmt, prefix, luid->Info.NetLuidIndex ); + else needed = snprintfW( buf, len, unk_fmt, luid->Info.IfType, luid->Info.NetLuidIndex ); + + if (needed >= len) return ERROR_NOT_ENOUGH_MEMORY; + memcpy( name, buf, (needed + 1) * sizeof(WCHAR) ); + return ERROR_SUCCESS; } /****************************************************************** @@ -3363,28 +3403,40 @@ DWORD WINAPI ConvertInterfaceNameToLuidA(const char *name, NET_LUID *luid) */ DWORD WINAPI ConvertInterfaceNameToLuidW(const WCHAR *name, NET_LUID *luid) { - DWORD ret; - IF_INDEX index; - MIB_IFROW row; - char nameA[IF_MAX_STRING_SIZE + 1]; + const WCHAR *sep; + static const WCHAR iftype[] = {'i','f','t','y','p','e',0}; + DWORD type = ~0u, i; + WCHAR buf[IF_MAX_STRING_SIZE + 1]; - TRACE("(%s %p)\n", debugstr_w(name), luid); + TRACE( "(%s %p)\n", debugstr_w(name), luid ); if (!luid) return ERROR_INVALID_PARAMETER; memset( luid, 0, sizeof(*luid) ); - if (!WideCharToMultiByte( CP_UNIXCP, 0, name, -1, nameA, sizeof(nameA), NULL, NULL )) - return ERROR_INVALID_NAME; + if (!name || !(sep = strchrW( name, '_' )) || sep >= name + ARRAY_SIZE(buf)) return ERROR_INVALID_NAME; + memcpy( buf, name, (sep - name) * sizeof(WCHAR) ); + buf[sep - name] = '\0'; - if ((ret = getInterfaceIndexByName( nameA, &index ))) return ret; - - row.dwIndex = index; - if ((ret = GetIfEntry( &row ))) return ret; + if (sep - name > ARRAY_SIZE(iftype) - 1 && !memcmp( buf, iftype, (ARRAY_SIZE(iftype) - 1) * sizeof(WCHAR) )) + { + type = atoiW( buf + ARRAY_SIZE(iftype) - 1 ); + } + else + { + for (i = 0; i < ARRAY_SIZE(name_prefixes); i++) + { + if (!strcmpW( buf, name_prefixes[i].prefix )) + { + type = name_prefixes[i].type; + break; + } + } + } + if (type == ~0u) return ERROR_INVALID_NAME; - luid->Info.Reserved = 0; - luid->Info.NetLuidIndex = index; - luid->Info.IfType = row.dwType; - return NO_ERROR; + luid->Info.NetLuidIndex = atoiW( sep + 1 ); + luid->Info.IfType = type; + return ERROR_SUCCESS; } /****************************************************************** diff --git a/dlls/iphlpapi/tests/iphlpapi.c b/dlls/iphlpapi/tests/iphlpapi.c index e43cb9b1f78..54c820e522c 100644 --- a/dlls/iphlpapi/tests/iphlpapi.c +++ b/dlls/iphlpapi/tests/iphlpapi.c @@ -1618,6 +1618,41 @@ static DWORD get_interface_index(void) return ret; } +static void convert_luid_to_name( NET_LUID *luid, WCHAR *expect_nameW, int len ) +{ + struct + { + const WCHAR *prefix; + DWORD type; + } prefixes[] = + { + { L"other", IF_TYPE_OTHER }, + { L"ethernet", IF_TYPE_ETHERNET_CSMACD }, + { L"tokenring", IF_TYPE_ISO88025_TOKENRING }, + { L"ppp", IF_TYPE_PPP }, + { L"loopback", IF_TYPE_SOFTWARE_LOOPBACK }, + { L"atm", IF_TYPE_ATM }, + { L"wireless", IF_TYPE_IEEE80211 }, + { L"tunnel", IF_TYPE_TUNNEL }, + { L"ieee1394", IF_TYPE_IEEE1394 } + }; + DWORD i; + const WCHAR *prefix = NULL; + + for (i = 0; i < ARRAY_SIZE(prefixes); i++) + { + if (prefixes[i].type == luid->Info.IfType) + { + prefix = prefixes[i].prefix; + break; + } + } + if (prefix) + swprintf( expect_nameW, len, L"%s_%d", prefix, luid->Info.NetLuidIndex ); + else + swprintf( expect_nameW, len, L"iftype%d_%d", luid->Info.IfType, luid->Info.NetLuidIndex ); +} + static void test_interface_identifier_conversion(void) { DWORD ret, i; @@ -1626,7 +1661,9 @@ static void test_interface_identifier_conversion(void) SIZE_T len; WCHAR nameW[IF_MAX_STRING_SIZE + 1]; WCHAR alias[IF_MAX_STRING_SIZE + 1]; + WCHAR expect_nameW[IF_MAX_STRING_SIZE + 1]; char nameA[IF_MAX_STRING_SIZE + 1], *name; + char expect_nameA[IF_MAX_STRING_SIZE + 1]; NET_IFINDEX index; MIB_IF_TABLE2 *table; @@ -1721,7 +1758,8 @@ static void test_interface_identifier_conversion(void) len = ARRAY_SIZE(nameW); ret = ConvertInterfaceLuidToNameW( &luid, nameW, len ); ok( !ret, "got %u\n", ret ); - ok( nameW[0], "name not set\n" ); + convert_luid_to_name( &luid, expect_nameW, len ); + ok( !wcscmp( nameW, expect_nameW ), "got %s vs %s\n", debugstr_w( nameW ), debugstr_w( expect_nameW ) ); /* ConvertInterfaceLuidToNameA */ ret = ConvertInterfaceLuidToNameA( NULL, NULL, 0 ); @@ -1810,12 +1848,10 @@ static void test_interface_identifier_conversion(void) ok( name == NULL, "got %p\n", name ); nameA[0] = 0; - name = if_indextoname( 1, nameA ); - if (name != NULL) - { - ok( name[0], "empty name\n" ); - ok( name == nameA, "got %p\n", name ); - } + name = if_indextoname( row->InterfaceIndex, nameA ); + ConvertInterfaceLuidToNameA( &row->InterfaceLuid, expect_nameA, ARRAY_SIZE(expect_nameA) ); + ok( name == nameA, "mismatch\n" ); + ok( !strcmp( nameA, expect_nameA ), "mismatch\n" ); } FreeMibTable( table ); }
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Alexandre Julliard