forked from osmocom/wireshark
196 lines
7.9 KiB
C
196 lines
7.9 KiB
C
/* capture_opts.h
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* Capture options (all parameters needed to do the actual capture)
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*
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* $Id$
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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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/** @file
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*
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* Capture options (all parameters needed to do the actual capture)
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*
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*/
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#ifndef __CAPTURE_OPTS_H__
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#define __CAPTURE_OPTS_H__
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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h> /* for gid_t */
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#endif
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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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#ifdef HAVE_PCAP_REMOTE
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/* Type of capture source */
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typedef enum {
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CAPTURE_IFLOCAL, /**< Local network interface */
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CAPTURE_IFREMOTE /**< Remote network interface */
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} capture_source;
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/* Type of RPCAPD Authentication */
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typedef enum {
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CAPTURE_AUTH_NULL, /**< No authentication */
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CAPTURE_AUTH_PWD /**< User/password authentication */
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} capture_auth;
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#ifdef HAVE_PCAP_SETSAMPLING
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/**
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* Method of packet sampling (dropping some captured packets),
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* may require additional integer parameter, marked here as N
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*/
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typedef enum {
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CAPTURE_SAMP_NONE, /**< No sampling - capture all packets */
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CAPTURE_SAMP_BY_COUNT, /**< Counter-based sampling -
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capture 1 packet from every N */
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CAPTURE_SAMP_BY_TIMER /**< Timer-based sampling -
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capture no more than 1 packet
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in N milliseconds */
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} capture_sampling;
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#endif
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#endif
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/** Capture options coming from user interface */
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typedef struct capture_options_tag {
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/* general */
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void *cf; /**< handle to cfile (note: untyped handle) */
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gboolean has_cfilter; /**< TRUE if capture filter specified on command line */
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gchar *cfilter; /**< Capture filter string */
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gchar *iface; /**< the network interface to capture from */
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gchar *iface_descr; /**< A human readable description of iface.
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*< NOTE: capture_opts.c is not able to
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*< set this field because doing so
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*< requires too many dependencies.
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*< Readers of this field should use
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*< get_iface_description() from
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*< "capture_ui_utils.h" to access it. */
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#ifdef HAVE_PCAP_REMOTE
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capture_source src_type; /**< Capturing on remote interface */
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gchar *remote_host; /**< Host name or network address
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*< for remote capturing */
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gchar *remote_port; /**< TCP port of remote RPCAP server */
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capture_auth auth_type;
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gchar *auth_username;
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gchar *auth_password; /**< Remote authentication parameters */
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gboolean datatx_udp; /**< Whether to use UDP for data transfer */
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gboolean nocap_rpcap; /**< Whether to capture RPCAP own traffic */
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gboolean nocap_local; /**< TODO: Whether to capture local traffic */
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#ifdef HAVE_PCAP_SETSAMPLING
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capture_sampling sampling_method; /**< PCAP packet sampling method */
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int sampling_param; /**< PCAP packet sampling parameter */
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#endif
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#endif
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#if defined(_WIN32) || defined(HAVE_PCAP_SET_BUFFER_SIZE)
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int buffer_size; /**< the capture buffer size (MB) */
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#endif
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gboolean has_snaplen; /**< TRUE if maximum capture packet length
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is specified */
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int snaplen; /**< Maximum captured packet length */
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gboolean promisc_mode; /**< Capture in promiscuous mode */
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int linktype; /**< Data link type to use, or -1 for
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"use default" */
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gboolean saving_to_file; /**< TRUE if capture is writing to a file */
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gchar *save_file; /**< the capture file name */
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gboolean use_pcapng; /**< TRUE if file format is pcapng */
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/* GUI related */
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gboolean real_time_mode; /**< Update list of packets in real time */
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gboolean show_info; /**< show the info dialog */
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gboolean quit_after_cap; /**< Makes a "capture only mode". Implies -k */
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gboolean restart; /**< restart after closing is done */
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/* multiple files (and ringbuffer) */
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gboolean multi_files_on; /**< TRUE if ring buffer in use */
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gboolean has_file_duration; /**< TRUE if ring duration specified */
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gint32 file_duration; /**< Switch file after n seconds */
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gboolean has_ring_num_files; /**< TRUE if ring num_files specified */
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guint32 ring_num_files; /**< Number of multiple buffer files */
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/* autostop conditions */
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gboolean has_autostop_files; /**< TRUE if maximum number of capture files
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are specified */
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gint32 autostop_files; /**< Maximum number of capture files */
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gboolean has_autostop_packets; /**< TRUE if maximum packet count is
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specified */
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int autostop_packets; /**< Maximum packet count */
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gboolean has_autostop_filesize; /**< TRUE if maximum capture file size
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is specified */
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gint32 autostop_filesize; /**< Maximum capture file size */
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gboolean has_autostop_duration; /**< TRUE if maximum capture duration
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is specified */
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gint32 autostop_duration; /**< Maximum capture duration */
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/* internally used (don't touch from outside) */
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int fork_child; /**< If not -1, in parent, process ID of child */
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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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gboolean output_to_pipe; /**< save_file is a pipe (named or stdout) */
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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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} capture_options;
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/* initialize the capture_options with some reasonable values */
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extern void
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capture_opts_init(capture_options *capture_opts, void *cf);
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/* set a command line option value */
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extern int
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capture_opts_add_opt(capture_options *capture_opts, int opt, const char *optarg, gboolean *start_capture);
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/* log content of capture_opts */
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extern void
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capture_opts_log(const char *log_domain, GLogLevelFlags log_level, capture_options *capture_opts);
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/* list link layer types */
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extern int
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capture_opts_list_link_layer_types(capture_options *capture_opts, gboolean machine_readable);
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/* list interfaces */
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extern int
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capture_opts_list_interfaces(gboolean machine_readable);
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/* trim the snaplen entry */
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extern void
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capture_opts_trim_snaplen(capture_options *capture_opts, int snaplen_min);
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/* trim the ring_num_files entry */
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extern void
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capture_opts_trim_ring_num_files(capture_options *capture_opts);
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/* trim the interface entry */
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extern gboolean
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capture_opts_trim_iface(capture_options *capture_opts, const char *capture_device);
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#endif /* capture_opts.h */
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