0771cf73cd
That way we aren't allocating memory, reading packets from a batch, and freeing the memory for each batch of packets delivered by dumpcap; we do the allocation when the capture starts and the freeing when it finishes. Change-Id: If012ab865f3a99d869535ad10827ad8680c1b10c Reviewed-on: https://code.wireshark.org/review/32766 Petri-Dish: Guy Harris <guy@alum.mit.edu> Tested-by: Petri Dish Buildbot Reviewed-by: Anders Broman <a.broman58@gmail.com>
75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
/* capture_session.h
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* State of a capture session
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef __CAPCHILD_CAPTURE_SESSION_H__
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#define __CAPCHILD_CAPTURE_SESSION_H__
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#ifndef _WIN32
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#include <sys/types.h>
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#include <stdint.h>
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#endif
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#include "capture_opts.h"
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#include <wsutil/processes.h>
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#ifdef HAVE_LIBPCAP
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/* Current state of capture engine. XXX - differentiate states */
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typedef enum {
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CAPTURE_STOPPED, /**< stopped */
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CAPTURE_PREPARING, /**< preparing, but still no response from capture child */
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CAPTURE_RUNNING /**< capture child signalled ok, capture is running now */
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} capture_state;
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#include "cfile.h"
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struct _info_data;
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/*
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* State of a capture session.
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*/
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typedef struct _capture_session {
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ws_process_id fork_child; /**< If not WS_INVALID_PID, in parent, process ID of child */
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int fork_child_status; /**< Child exit status */
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#ifdef _WIN32
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int signal_pipe_write_fd; /**< the pipe to signal the child */
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#endif
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capture_state state; /**< current state of the capture engine */
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#ifndef _WIN32
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uid_t owner; /**< owner of the cfile */
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gid_t group; /**< group of the cfile */
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#endif
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gboolean session_started;
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guint32 count; /**< Total number of frames captured */
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capture_options *capture_opts; /**< options for this capture */
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capture_file *cf; /**< handle to cfile */
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wtap_rec rec; /**< record we're reading packet metadata into */
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Buffer buf; /**< Buffer we're reading packet data into */
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struct wtap *wtap; /**< current wtap file */
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struct _info_data *cap_data_info; /**< stats for this capture */
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} capture_session;
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extern void
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capture_session_init(capture_session *cap_session, capture_file *cf);
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#else
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/* dummy is needed because clang throws the error: empty struct has size 0 in C, size 1 in C++ */
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typedef struct _capture_session {int dummy;} capture_session;
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#endif /* HAVE_LIBPCAP */
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __CAPCHILD_CAPTURE_SESSION_H__ */
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