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[MPR] Implement remembered connection enumeration

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CORE-15310
This commit is contained in:
Pierre Schweitzer 2018-11-17 21:55:57 +01:00
parent 34c812365f
commit 8b0a126445
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GPG key ID: 7545556C3D585B0B
1 changed files with 249 additions and 0 deletions
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249
dll/win32/mpr/wnet.c
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@ -73,12 +73,21 @@ typedef struct _WNetProviderTable
WNetProvider table[1];
} WNetProviderTable, *PWNetProviderTable;
#ifndef __REACTOS__
#define WNET_ENUMERATOR_TYPE_NULL 0
#define WNET_ENUMERATOR_TYPE_GLOBAL 1
#define WNET_ENUMERATOR_TYPE_PROVIDER 2
#define WNET_ENUMERATOR_TYPE_CONTEXT 3
#define WNET_ENUMERATOR_TYPE_CONNECTED 4
#else
#define WNET_ENUMERATOR_TYPE_GLOBAL 0
#define WNET_ENUMERATOR_TYPE_PROVIDER 1
#define WNET_ENUMERATOR_TYPE_CONTEXT 2
#define WNET_ENUMERATOR_TYPE_CONNECTED 3
#define WNET_ENUMERATOR_TYPE_REMEMBERED 4
#endif
#ifndef __REACTOS__
/* An WNet enumerator. Note that the type doesn't correspond to the scope of
* the enumeration; it represents one of the following types:
* - a 'null' enumeration, one that contains no members
@ -93,6 +102,23 @@ typedef struct _WNetProviderTable
* into a global enumeration (so the enumeration continues across all
* providers).
*/
#else
/* An WNet enumerator. Note that the type doesn't correspond to the scope of
* the enumeration; it represents one of the following types:
* - a global enumeration, one that's executed across all providers
* - a provider-specific enumeration, one that's only executed by a single
* provider
* - a context enumeration. I know this contradicts what I just said about
* there being no correspondence between the scope and the type, but it's
* necessary for the special case that a "Entire Network" entry needs to
* be enumerated in an enumeration of the context scope. Thus an enumeration
* of the context scope results in a context type enumerator, which morphs
* into a global enumeration (so the enumeration continues across all
* providers).
* - a remembered enumeration, not related to providers themselves, but it
* is a registry enumeration for saved connections
*/
#endif
typedef struct _WNetEnumerator
{
DWORD enumType;
@ -106,6 +132,13 @@ typedef struct _WNetEnumerator
{
NETRESOURCEW* net;
HANDLE* handles;
#ifdef __REACTOS__
struct
{
HKEY registry;
DWORD index;
} remembered;
#endif
} specific;
} WNetEnumerator, *PWNetEnumerator;
@ -553,6 +586,7 @@ static void _freeEnumNetResource(LPNETRESOURCEW lpNet)
}
}
#ifndef __REACTOS__
static PWNetEnumerator _createNullEnumerator(void)
{
PWNetEnumerator ret = HeapAlloc(GetProcessHeap(),
@ -562,6 +596,7 @@ static PWNetEnumerator _createNullEnumerator(void)
ret->enumType = WNET_ENUMERATOR_TYPE_NULL;
return ret;
}
#endif
static PWNetEnumerator _createGlobalEnumeratorW(DWORD dwScope, DWORD dwType,
DWORD dwUsage, LPNETRESOURCEW lpNet)
@ -639,6 +674,22 @@ static PWNetEnumerator _createConnectedEnumerator(DWORD dwScope, DWORD dwType,
return ret;
}
#ifdef __REACTOS__
static PWNetEnumerator _createRememberedEnumerator(DWORD dwScope, DWORD dwType,
HKEY remembered)
{
PWNetEnumerator ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WNetEnumerator));
if (ret)
{
ret->enumType = WNET_ENUMERATOR_TYPE_REMEMBERED;
ret->dwScope = dwScope;
ret->dwType = dwType;
ret->specific.remembered.registry = remembered;
}
return ret;
}
#endif
/* Thunks the array of wide-string LPNETRESOURCEs lpNetArrayIn into buffer
* lpBuffer, with size *lpBufferSize. lpNetArrayIn contains *lpcCount entries
* to start. On return, *lpcCount reflects the number thunked into lpBuffer.
@ -1004,8 +1055,28 @@ DWORD WINAPI WNetOpenEnumW( DWORD dwScope, DWORD dwType, DWORD dwUsage,
ret = *lphEnum ? WN_SUCCESS : WN_OUT_OF_MEMORY;
break;
case RESOURCE_REMEMBERED:
#ifndef __REACTOS__
*lphEnum = _createNullEnumerator();
ret = *lphEnum ? WN_SUCCESS : WN_OUT_OF_MEMORY;
#else
{
HKEY remembered, user_profile;
ret = WN_OUT_OF_MEMORY;
if (RegOpenCurrentUser(KEY_READ, &user_profile) == ERROR_SUCCESS)
{
WCHAR subkey[8] = {'N', 'e', 't', 'w', 'o', 'r', 'k', 0};
if (RegOpenKeyExW(user_profile, subkey, 0, KEY_READ, &remembered) == ERROR_SUCCESS)
{
*lphEnum = _createRememberedEnumerator(dwScope, dwType, remembered);
ret = *lphEnum ? WN_SUCCESS : WN_OUT_OF_MEMORY;
}
RegCloseKey(user_profile);
}
}
#endif
break;
default:
WARN("unknown scope 0x%08x\n", dwScope);
@ -1512,6 +1583,168 @@ static DWORD _enumerateConnectedW(PWNetEnumerator enumerator, DWORD* user_count,
return ret;
}
#ifdef __REACTOS__
static const WCHAR connectionType[] = { 'C','o','n','n','e','c','t',
'i','o','n','T','y','p','e',0 };
static const WCHAR providerName[] = { 'P','r','o','v','i','d','e','r',
'N','a','m','e',0 };
static const WCHAR remotePath[] = { 'R','e','m','o','t','e','P',
'a','t','h',0 };
static DWORD _enumeratorRememberedW(PWNetEnumerator enumerator, DWORD* user_count,
void* user_buffer, DWORD* user_size)
{
HKEY registry, connection;
WCHAR buffer[255];
DWORD index, ret, type, len, size, provider_size, remote_size, full_size, total_count, size_left = *user_size;
NETRESOURCEW * net_buffer = user_buffer;
WCHAR * str;
if (!enumerator)
return WN_BAD_POINTER;
if (enumerator->enumType != WNET_ENUMERATOR_TYPE_REMEMBERED)
return WN_BAD_VALUE;
if (!user_count || !user_buffer || !user_size)
return WN_BAD_POINTER;
if (!providerTable)
return WN_NO_NETWORK;
/* We will do the work in a single loop, so here is some things:
* we write netresource at the begin of the user buffer
* we write strings at the end of the user buffer
*/
total_count = 0;
type = enumerator->dwType;
registry = enumerator->specific.remembered.registry;
str = (WCHAR *)((ULONG_PTR)user_buffer + *user_size - sizeof(WCHAR));
for (index = enumerator->specific.remembered.index; ; ++index)
{
enumerator->specific.remembered.index = index;
if (*user_count != -1 && total_count == *user_count)
{
ret = WN_SUCCESS;
break;
}
if (size_left < sizeof(NETRESOURCEW))
{
ret = WN_MORE_DATA;
break;
}
len = ARRAY_SIZE(buffer);
ret = RegEnumKeyExW(registry, index, buffer, &len, NULL, NULL, NULL, NULL);
if (ret != ERROR_SUCCESS)
{
/* We're done, that's a success! */
if (ret == ERROR_NO_MORE_ITEMS)
{
ret = WN_SUCCESS;
break;
}
continue;
}
if (RegOpenKeyExW(registry, buffer, 0, KEY_READ, &connection) != ERROR_SUCCESS)
{
continue;
}
size = sizeof(DWORD);
RegQueryValueExW(connection, connectionType, NULL, NULL, (BYTE *)&net_buffer->dwType, &size);
if (type != RESOURCETYPE_ANY && net_buffer->dwType != type)
{
RegCloseKey(connection);
continue;
}
net_buffer->dwScope = RESOURCE_REMEMBERED;
net_buffer->dwDisplayType = RESOURCEDISPLAYTYPE_GENERIC;
net_buffer->dwUsage = RESOURCEUSAGE_CONNECTABLE;
size_left -= sizeof(NETRESOURCEW);
/* Compute the whole size */
full_size = 0;
if (RegQueryValueExW(connection, providerName, NULL, NULL, NULL, &provider_size) != ERROR_SUCCESS)
{
RegCloseKey(connection);
continue;
}
full_size += provider_size;
if (RegQueryValueExW(connection, remotePath, NULL, NULL, NULL, &remote_size) != ERROR_SUCCESS)
{
RegCloseKey(connection);
continue;
}
full_size += remote_size;
/* FIXME: this only supports drive letters */
full_size += 3 * sizeof(WCHAR);
if (full_size > size_left)
{
RegCloseKey(connection);
ret = WN_MORE_DATA;
break;
}
str -= 3;
str[0] = buffer[0];
str[1] = L':';
str[2] = 0;
net_buffer->lpLocalName = str;
size_left -= 3 * sizeof(WCHAR);
size = provider_size;
str -= (provider_size / sizeof(WCHAR));
ret = RegQueryValueExW(connection, providerName, NULL, NULL, (BYTE *)str, &size);
if (ret == ERROR_MORE_DATA)
{
RegCloseKey(connection);
ret = WN_MORE_DATA;
break;
}
net_buffer->lpProvider = str;
size_left -= size;
size = remote_size;
str -= (remote_size / sizeof(WCHAR));
ret = RegQueryValueExW(connection, remotePath, NULL, NULL, (BYTE *)str, &size);
if (ret == ERROR_MORE_DATA)
{
RegCloseKey(connection);
ret = WN_MORE_DATA;
break;
}
net_buffer->lpRemoteName = str;
size_left -= size;
RegCloseKey(connection);
net_buffer->lpComment = NULL;
++total_count;
++net_buffer;
}
if (total_count == 0)
ret = WN_NO_MORE_ENTRIES;
*user_count = total_count;
if (ret != WN_MORE_DATA && ret != WN_NO_MORE_ENTRIES)
ret = WN_SUCCESS;
if (ret == WN_MORE_DATA)
*user_size = *user_size + full_size;
return ret;
}
#endif
/*********************************************************************
* WNetEnumResourceW [MPR.@]
*/
@ -1541,9 +1774,11 @@ DWORD WINAPI WNetEnumResourceW( HANDLE hEnum, LPDWORD lpcCount,
switch (enumerator->enumType)
{
#ifndef __REACTOS__
case WNET_ENUMERATOR_TYPE_NULL:
ret = WN_NO_MORE_ENTRIES;
break;
#endif
case WNET_ENUMERATOR_TYPE_GLOBAL:
ret = _enumerateGlobalW(enumerator, lpcCount, lpBuffer,
lpBufferSize);
@ -1560,6 +1795,12 @@ DWORD WINAPI WNetEnumResourceW( HANDLE hEnum, LPDWORD lpcCount,
ret = _enumerateConnectedW(enumerator, lpcCount, lpBuffer,
lpBufferSize);
break;
#ifdef __REACTOS__
case WNET_ENUMERATOR_TYPE_REMEMBERED:
ret = _enumeratorRememberedW(enumerator, lpcCount, lpBuffer,
lpBufferSize);
break;
#endif
default:
WARN("bogus enumerator type!\n");
ret = WN_NO_NETWORK;
@ -1587,9 +1828,11 @@ DWORD WINAPI WNetCloseEnum( HANDLE hEnum )
switch (enumerator->enumType)
{
#ifndef __REACTOS__
case WNET_ENUMERATOR_TYPE_NULL:
ret = WN_SUCCESS;
break;
#endif
case WNET_ENUMERATOR_TYPE_GLOBAL:
if (enumerator->specific.net)
_freeEnumNetResource(enumerator->specific.net);
@ -1614,6 +1857,12 @@ DWORD WINAPI WNetCloseEnum( HANDLE hEnum )
HeapFree(GetProcessHeap(), 0, handles);
ret = WN_SUCCESS;
break;
#ifdef __REACTOS__
case WNET_ENUMERATOR_TYPE_REMEMBERED:
RegCloseKey(enumerator->specific.remembered.registry);
ret = WN_SUCCESS;
break;
#endif
default:
WARN("bogus enumerator type!\n");
ret = WN_BAD_HANDLE;