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Diffstat (limited to 'src/source-nfq.h')
-rw-r--r-- | src/source-nfq.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/source-nfq.h b/src/source-nfq.h new file mode 100644 index 0000000..b60e6d9 --- /dev/null +++ b/src/source-nfq.h @@ -0,0 +1,100 @@ +/* Copyright (C) 2007-2010 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 Victor Julien <victor@inliniac.net> + */ + +#ifndef __SOURCE_NFQ_H__ +#define __SOURCE_NFQ_H__ + +#ifdef NFQ + +#include "threads.h" +#include <linux/netfilter.h> /* for NF_ACCEPT */ +#include <libnetfilter_queue/libnetfilter_queue.h> + +// Netfilter's limit +#define NFQ_MAX_QUEUE 65535 + +/* idea: set the recv-thread id in the packet to + * select an verdict-queue */ + +typedef struct NFQPacketVars_ +{ + int id; /* this nfq packets id */ + uint16_t nfq_index; /* index in NFQ array */ + uint8_t verdicted; + + uint32_t mark; + uint32_t ifi; + uint32_t ifo; + uint16_t hw_protocol; +} NFQPacketVars; + +typedef struct NFQQueueVars_ +{ + struct nfq_handle *h; + struct nfnl_handle *nh; + int fd; + uint8_t use_mutex; + /* 2 threads deal with the queue handle, so add a mutex */ + struct nfq_q_handle *qh; + SCMutex mutex_qh; + /* this one should be not changing after init */ + uint16_t queue_num; + /* position into the NFQ queue var array */ + uint16_t nfq_index; + +#ifdef DBG_PERF + int dbg_maxreadsize; +#endif /* DBG_PERF */ + + /* counters */ + uint32_t pkts; + uint64_t bytes; + uint32_t errs; + uint32_t accepted; + uint32_t dropped; + uint32_t replaced; + struct { + uint32_t packet_id; /* id of last processed packet */ + uint32_t verdict; + uint32_t mark; + uint8_t mark_valid:1; + uint8_t len; + uint8_t maxlen; + } verdict_cache; + +} NFQQueueVars; + +typedef struct NFQGlobalVars_ +{ + char unbind; +} NFQGlobalVars; + +void NFQInitConfig(bool quiet); +int NFQRegisterQueue(const uint16_t number); +int NFQParseAndRegisterQueues(const char *queues); +void *NFQGetQueue(int number); +void *NFQGetThread(int number); +void NFQContextsClean(void); +#endif /* NFQ */ +#endif /* __SOURCE_NFQ_H__ */ + |