[reactos] 05/14: [IPHLPAPI] Implement the IPv4 TCP_TABLE_OWNER_PID_* cases in GetExtendedTcpTable()

[Pierre Schweitzer]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=c949a12506046b0aa9bc7…

commit c949a12506046b0aa9bc74e6a8fa1dabefcecba7
Author:     Pierre Schweitzer <pierre(a)reactos.org>
AuthorDate: Sat Nov 24 20:32:55 2018 +0100
Commit:     Pierre Schweitzer <pierre(a)reactos.org>
CommitDate: Sat Nov 24 21:41:09 2018 +0100

    [IPHLPAPI] Implement the IPv4 TCP_TABLE_OWNER_PID_* cases in GetExtendedTcpTable()
---
 dll/win32/iphlpapi/iphlpapi_main.c | 111 +++++++++++++++++++++++++++++++++++++
 dll/win32/iphlpapi/ipstats.h       |   5 ++
 2 files changed, 116 insertions(+)

diff --git a/dll/win32/iphlpapi/iphlpapi_main.c b/dll/win32/iphlpapi/iphlpapi_main.c
index bff2ea7088..2792be25a0 100644
--- a/dll/win32/iphlpapi/iphlpapi_main.c
+++ b/dll/win32/iphlpapi/iphlpapi_main.c
@@ -922,6 +922,117 @@ DWORD WINAPI GetExtendedTcpTable(PVOID pTcpTable, PDWORD pdwSize,
BOOL bOrder, U
         }
         break;
 
+        case TCP_TABLE_OWNER_PID_ALL:
+        {
+            PMIB_TCPTABLE_OWNER_PID pOurTcpTable = getOwnerTcpTable();
+            PMIB_TCPTABLE_OWNER_PID pTheirTcpTable = pTcpTable;
+
+            if (pOurTcpTable)
+            {
+                if (sizeof(DWORD) + pOurTcpTable->dwNumEntries *
sizeof(MIB_TCPROW_OWNER_PID) > *pdwSize || !pTheirTcpTable)
+                {
+                    *pdwSize = sizeof(DWORD) + pOurTcpTable->dwNumEntries *
sizeof(MIB_TCPROW_OWNER_PID);
+                    ret = ERROR_INSUFFICIENT_BUFFER;
+                }
+                else
+                {
+                    memcpy(pTheirTcpTable, pOurTcpTable, sizeof(DWORD) +
pOurTcpTable->dwNumEntries * sizeof(MIB_TCPROW_OWNER_PID));
+
+                    /* Don't sort on PID, so use basic helper */
+                    if (bOrder)
+                        qsort(pTheirTcpTable->table, pTheirTcpTable->dwNumEntries,
+                              sizeof(MIB_TCPROW_OWNER_PID), TcpTableSorter);
+                }
+            }
+        }
+        break;
+
+        case TCP_TABLE_OWNER_PID_CONNECTIONS:
+        {
+            PMIB_TCPTABLE_OWNER_PID pOurTcpTable = getOwnerTcpTable();
+            PMIB_TCPTABLE_OWNER_PID pTheirTcpTable = pTcpTable;
+
+            if (pOurTcpTable)
+            {
+                for (i = 0, count = 0; i < pOurTcpTable->dwNumEntries; ++i)
+                {
+                    if (pOurTcpTable->table[i].dwState != MIB_TCP_STATE_LISTEN)
+                    {
+                        ++count;
+                    }
+                }
+
+                if (sizeof(DWORD) + count * sizeof(MIB_TCPROW_OWNER_PID) > *pdwSize ||
!pTheirTcpTable)
+                {
+                    *pdwSize = sizeof(DWORD) + count * sizeof(MIB_TCPROW_OWNER_PID);
+                    ret = ERROR_INSUFFICIENT_BUFFER;
+                }
+                else
+                {
+                    pTheirTcpTable->dwNumEntries = count;
+
+                    for (i = 0, count = 0; i < pOurTcpTable->dwNumEntries; ++i)
+                    {
+                        if (pOurTcpTable->table[i].dwState != MIB_TCP_STATE_LISTEN)
+                        {
+                            memcpy(&pTheirTcpTable->table[count],
&pOurTcpTable->table[i], sizeof(MIB_TCPROW_OWNER_PID));
+                            ++count;
+                        }
+                    }
+                    ASSERT(count == pTheirTcpTable->dwNumEntries);
+
+                    /* Don't sort on PID, so use basic helper */
+                    if (bOrder)
+                        qsort(pTheirTcpTable->table, pTheirTcpTable->dwNumEntries,
+                              sizeof(MIB_TCPROW_OWNER_PID), TcpTableSorter);
+                }
+            }
+        }
+        break;
+
+        case TCP_TABLE_OWNER_PID_LISTENER:
+        {
+            PMIB_TCPTABLE_OWNER_PID pOurTcpTable = getOwnerTcpTable();
+            PMIB_TCPTABLE_OWNER_PID pTheirTcpTable = pTcpTable;
+
+            if (pOurTcpTable)
+            {
+                for (i = 0, count = 0; i < pOurTcpTable->dwNumEntries; ++i)
+                {
+                    if (pOurTcpTable->table[i].dwState == MIB_TCP_STATE_LISTEN)
+                    {
+                        ++count;
+                    }
+                }
+
+                if (sizeof(DWORD) + count * sizeof(MIB_TCPROW_OWNER_PID) > *pdwSize ||
!pTheirTcpTable)
+                {
+                    *pdwSize = sizeof(DWORD) + count * sizeof(MIB_TCPROW_OWNER_PID);
+                    ret = ERROR_INSUFFICIENT_BUFFER;
+                }
+                else
+                {
+                    pTheirTcpTable->dwNumEntries = count;
+
+                    for (i = 0, count = 0; i < pOurTcpTable->dwNumEntries; ++i)
+                    {
+                        if (pOurTcpTable->table[i].dwState == MIB_TCP_STATE_LISTEN)
+                        {
+                            memcpy(&pTheirTcpTable->table[count],
&pOurTcpTable->table[i], sizeof(MIB_TCPROW_OWNER_PID));
+                            ++count;
+                        }
+                    }
+                    ASSERT(count == pTheirTcpTable->dwNumEntries);
+
+                    /* Don't sort on PID, so use basic helper */
+                    if (bOrder)
+                        qsort(pTheirTcpTable->table, pTheirTcpTable->dwNumEntries,
+                              sizeof(MIB_TCPROW_OWNER_PID), TcpTableSorter);
+                }
+            }
+        }
+        break;
+
         default:
             UNIMPLEMENTED;
             ret = ERROR_INVALID_PARAMETER;
diff --git a/dll/win32/iphlpapi/ipstats.h b/dll/win32/iphlpapi/ipstats.h
index 428bafc3a2..1fd51574c3 100644
--- a/dll/win32/iphlpapi/ipstats.h
+++ b/dll/win32/iphlpapi/ipstats.h
@@ -105,4 +105,9 @@ DWORD getNumTcpEntries(void);
  */
 PMIB_TCPTABLE getTcpTable(void);
 
+/* Allocates and returns to you the TCP state table with owner PID,
+ * or NULL if it can't allocate enough memory.  free() the returned table.
+ */
+PMIB_TCPTABLE_OWNER_PID getOwnerTcpTable(void);
+
 #endif /* ndef WINE_IPSTATS_H_ */