From 213189ef9e7bbd851e145e1cfb1067c7b2b72de8 Mon Sep 17 00:00:00 2001 From: Guy Harris Date: Mon, 23 Jun 2014 16:48:41 -0700 Subject: Move the routines to talk to dumpcap into a static libcapchild. This pulls some stuff out of the top-level directory, and means we don't have to build them once for every program using them. Change-Id: I37b31fed20f2d5c3563ecd2bae9fd86af70afff5 Reviewed-on: https://code.wireshark.org/review/2591 Reviewed-by: Guy Harris --- capchild/capture_sync.h | 138 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 138 insertions(+) create mode 100644 capchild/capture_sync.h (limited to 'capchild/capture_sync.h') diff --git a/capchild/capture_sync.h b/capchild/capture_sync.h new file mode 100644 index 0000000000..2c4bb639af --- /dev/null +++ b/capchild/capture_sync.h @@ -0,0 +1,138 @@ +/* capture_sync.h + * Synchronisation between Wireshark capture parent and child instances + * + * Wireshark - Network traffic analyzer + * By Gerald Combs + * Copyright 1998 Gerald Combs + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * 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 + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + + +/** @file + * + * Sync mode capture (internal interface). + * + * Will start a new Wireshark child instance which will do the actual capture + * work. + */ + +#ifndef __CAPTURE_SYNC_H__ +#define __CAPTURE_SYNC_H__ + +/** + * Start a new capture session. + * Create a capture child which is doing the real capture work. + * The various capture_input_... functions will be called, if something had + * happened. + * + * Most of the parameters are passed through the global capture_opts. + * + * @param capture_opts the options + * @param cap_session a handle for the capture session + * @param update_cb update screen + * @return TRUE if a capture could be started, FALSE if not + */ +extern gboolean +sync_pipe_start(capture_options *capture_opts, capture_session *cap_session, void(*update_cb)(void)); + +/** User wants to stop capturing, gracefully close the capture child */ +extern void +sync_pipe_stop(capture_session *cap_session); + +/** User wants to stop the program, just kill the child as soon as possible */ +extern void +sync_pipe_kill(int fork_child); + +/** Set wireless channel using dumpcap */ +extern int +sync_interface_set_80211_chan(const gchar *iface, const char *freq, const gchar *type, + gchar **data, gchar **primary_msg, + gchar **secondary_msg, void (*update_cb)(void)); + +/** Get an interface list using dumpcap */ +extern int +sync_interface_list_open(gchar **data, gchar **primary_msg, + gchar **secondary_msg, void (*update_cb)(void)); + +/** Get interface capabilities using dumpcap */ +extern int +sync_if_capabilities_open(const gchar *ifname, gboolean monitor_mode, + gchar **data, gchar **primary_msg, + gchar **secondary_msg, void (*update_cb)(void)); + +/** Start getting interface statistics using dumpcap. */ +extern int +sync_interface_stats_open(int *read_fd, int *fork_child, gchar **msg, void (*update_cb)(void)); + +/** Stop gathering statistics. */ +extern int +sync_interface_stats_close(int *read_fd, int *fork_child, gchar **msg); + +/** Read a line from a pipe, similar to fgets. Non-blocking. */ +extern int +sync_pipe_gets_nonblock(int pipe_fd, char *bytes, int max); + +/* + * Routines supplied by our caller; we call them back to notify them + * of various events. + * + * XXX - this is *really* ugly. We should do this better. + */ + +/** + * Capture child told us we have a new (or the first) capture file. + */ +extern gboolean +capture_input_new_file(capture_session *cap_session, gchar *new_file); + +/** + * Capture child told us we have new packets to read. + */ +extern void +capture_input_new_packets(capture_session *cap_session, int to_read); + +/** + * Capture child told us how many dropped packets it counted. + */ +extern void +capture_input_drops(capture_session *cap_session, guint32 dropped); + +/** + * Capture child told us that an error has occurred while starting the capture. + */ +extern void +capture_input_error_message(capture_session *cap_session, char *error_message, + char *secondary_error_msg); + +/** + * Capture child told us that an error has occurred while parsing a + * capture filter when starting/running the capture. + */ +extern void +capture_input_cfilter_error_message(capture_session *cap_session, guint i, + char *error_message); + +/** + * Capture child closed its side of the pipe, report any error and + * do the required cleanup. + */ +extern void +capture_input_closed(capture_session *cap_session, gchar *msg); + +/* set a callback to be called after fork with the pid of the forked child */ +extern void capture_sync_set_fetch_dumpcap_pid_cb(void(*cb)(int pid)); + +#endif /* capture_sync.h */ -- cgit v1.2.3