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Diffstat (limited to 'src/source-windivert.h')
-rw-r--r-- | src/source-windivert.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/source-windivert.h b/src/source-windivert.h new file mode 100644 index 0000000..7157499 --- /dev/null +++ b/src/source-windivert.h @@ -0,0 +1,82 @@ +/* Copyright (C) 2018 Open Information Security Foundation + * + * You can copy, redistribute or modify this Program under the terms of + * the GNU General Public License version 2 as published by the Free + * Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * version 2 along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +/** + * + * \file + * + * \author Jacob Masen-Smith <jacob@evengx.com> + * + */ + +#ifndef __SOURCE_WINDIVERT_H__ +#define __SOURCE_WINDIVERT_H__ + +#ifdef WINDIVERT + +#include "windivert.h" + +#define WINDIVERT_FILTER_MAXLEN 128 /* from windivert_device.h */ + +typedef void *WinDivertHandle; + +/** + * \brief WinDivertQueueVars is the queue configuration and other miscellaneous + * information about the specific queue/filter. + * + * see https://reqrypt.org/windivert-doc.html#divert_open for more info + */ +typedef struct WinDivertQueueVars_ +{ + int queue_num; + + /* see https://reqrypt.org/windivert-doc.html#filter_language */ + char filter_str[WINDIVERT_FILTER_MAXLEN + 1]; + WINDIVERT_LAYER layer; + int16_t priority; + uint64_t flags; + + WinDivertHandle filter_handle; + /* only needed for setup/teardown; Recv/Send are internally synchronized */ + SCMutex filter_init_mutex; + + /* counters */ + uint32_t pkts; + uint64_t bytes; + uint32_t errs; + uint32_t accepted; + uint32_t dropped; + uint32_t replaced; + SCMutex counters_mutex; +} WinDivertQueueVars; + +typedef struct WinDivertPacketVars_ +{ + int thread_num; + + WINDIVERT_ADDRESS addr; + bool verdicted; +} WinDivertPacketVars; + +int WinDivertRegisterQueue(bool forward, char *filter_str); +void *WinDivertGetThread(int thread); +void *WinDivertGetQueue(int queue); + +void SourceWinDivertRegisterTests(void); + +#endif /* WINDIVERT */ +#endif /* __SOURCE_WINDIVERT_H__ */
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