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* origin/topic/dist-cleanup: Updating INSTALL Updating README Remove $Id$ tags Remove policy.old directory, adresses #511
115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
// See the file "COPYING" in the main distribution directory for copyright.
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#ifndef net_h
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#define net_h
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#include "net_util.h"
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#include "BPF_Program.h"
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#include "List.h"
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#include "PktSrc.h"
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#include "FlowSrc.h"
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#include "Func.h"
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#include "RemoteSerializer.h"
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extern void net_init(name_list& interfaces, name_list& readfiles,
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name_list& netflows, name_list& flowfiles,
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const char* writefile, const char* filter,
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const char* secondary_filter, int do_watchdog);
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extern void net_run();
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extern void net_get_final_stats();
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extern void net_finish(int drain_events);
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extern void net_delete(); // Reclaim all memory, etc.
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extern void net_packet_arrival(double t, const struct pcap_pkthdr* hdr,
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const u_char* pkt, int hdr_size,
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PktSrc* src_ps);
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extern int net_packet_match(BPF_Program* fp, const u_char* pkt,
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u_int len, u_int caplen);
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extern void expire_timers(PktSrc* src_ps = 0);
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extern void termination_signal();
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// Functions to temporarily suspend processing of live input (network packets
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// and remote events/state). Turning this is on is sure to lead to data loss!
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extern void net_suspend_processing();
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extern void net_continue_processing();
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extern int _processing_suspended; // don't access directly.
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inline bool net_is_processing_suspended()
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{ return _processing_suspended > 0; }
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// Whether we're reading live traffic.
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extern int reading_live;
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// Same but for reading from traces instead. We have two separate
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// variables because it's possible that neither is true, and we're
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// instead just running timers (per the variable after this one).
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extern int reading_traces;
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// True if we have timers scheduled for the future on which we need
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// to wait. "Need to wait" here means that we're running live (though
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// perhaps not reading_live, but just running in real-time) as opposed
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// to reading a trace (in which case we don't want to wait in real-time
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// on future timers).
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extern int have_pending_timers;
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// If > 0, we are reading from traces but trying to mimic real-time behavior.
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// (In this case, both reading_traces and reading_live are true.) The value
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// is the speedup (1 = real-time, 0.5 = half real-time, etc.).
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extern double pseudo_realtime;
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// When we started processing the current packet and corresponding event
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// queue.
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extern double processing_start_time;
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// When the Bro process was started.
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extern double bro_start_time;
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// Time at which the Bro process was started with respect to network time,
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// i.e. the timestamp of the first packet.
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extern double bro_start_network_time;
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// True if we're a in the process of cleaning-up just before termination.
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extern bool terminating;
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// True if the remote serializer is to be activated.
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extern bool using_communication;
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// Snaplen passed to libpcap.
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extern int snaplen;
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extern const struct pcap_pkthdr* current_hdr;
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extern const u_char* current_pkt;
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extern int current_dispatched;
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extern int current_hdr_size;
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extern double current_timestamp;
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extern PktSrc* current_pktsrc;
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extern IOSource* current_iosrc;
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declare(PList,PktSrc);
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extern PList(PktSrc) pkt_srcs;
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extern PktDumper* pkt_dumper; // where to save packets
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extern char* writefile;
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// Script file we have already scanned (or are in the process of scanning).
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// They are identified by inode number.
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struct ScannedFile {
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ino_t inode;
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int include_level;
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string name;
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string subpath; // Path in BROPATH's policy/ containing the file.
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bool skipped; // This ScannedFile was @unload'd.
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bool prefixes_checked; // If loading prefixes for this file has been tried.
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ScannedFile(ino_t arg_inode, int arg_include_level, string arg_name,
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string arg_subpath = "", bool arg_skipped = false,
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bool arg_prefixes_checked = false)
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: inode(arg_inode), include_level(arg_include_level),
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name(arg_name), subpath(arg_subpath), skipped(arg_skipped),
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prefixes_checked(arg_prefixes_checked)
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{ }
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};
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extern std::list<ScannedFile> files_scanned;
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#endif
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