/* file.h
* Definitions for file structures and routines
*
- * $Id: file.h,v 1.83 2001/06/05 07:38:33 guy Exp $
+ * $Id$
*
- * Ethereal - Network traffic analyzer
- * By Gerald Combs <gerald@ethereal.com>
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#ifndef __FILE_H__
#define __FILE_H__
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-
+#include "packet-range.h"
#include "wiretap/wtap.h"
-#include "dfilter/dfilter.h"
+#include <epan/dfilter/dfilter.h>
#include "print.h"
#include <errno.h>
-#include <epan.h>
-
-#ifdef HAVE_LIBZ
-#include "zlib.h"
-#define FILE_T gzFile
-#define file_open gzopen
-#define filed_open gzdopen
-#define file_close gzclose
-#else /* No zLib */
-#define FILE_T FILE *
-#define file_open fopen
-#define filed_open fdopen
-#define file_close fclose
-#endif /* HAVE_LIBZ */
-
-/* Current state of file. */
+#include <epan/epan.h>
+
+#include "cfile.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/** Return values from functions that only can succeed or fail. */
typedef enum {
- FILE_CLOSED, /* No file open */
- FILE_READ_IN_PROGRESS, /* Reading a file we've opened */
- FILE_READ_ABORTED, /* Read aborted by user */
- FILE_READ_DONE /* Read completed */
-} file_state;
-
-typedef struct _capture_file {
- file_state state; /* Current state of capture file */
- int filed; /* File descriptor of capture file */
- gchar *filename; /* Name of capture file */
- gboolean is_tempfile; /* Is capture file a temporary file? */
- gboolean user_saved;/* If capture file is temporary, has it been saved by user yet? */
- long f_len; /* Length of capture file */
- guint16 cd_t; /* File type of capture file */
- int lnk_t; /* Link-layer type with which to save capture */
- guint32 vers; /* Version. For tcpdump minor is appended to major */
- int count; /* Packet count */
- gboolean drops_known; /* TRUE if we know how many packets were dropped */
- guint32 drops; /* Dropped packets */
- guint32 esec; /* Elapsed seconds */
- guint32 eusec; /* Elapsed microseconds */
- int snap; /* Captured packet length */
- long progbar_quantum; /* Number of bytes read per progress bar update */
- long progbar_nextstep; /* Next point at which to update progress bar */
- gchar *iface; /* Interface */
- gchar *save_file; /* File that user saved capture to */
- int save_file_fd; /* File descriptor for saved file */
- wtap *wth; /* Wiretap session */
- dfilter_t *rfcode; /* Compiled read filter program */
- gchar *dfilter; /* Display filter string */
- struct _colfilter *colors; /* Colors for colorizing packet window */
- dfilter_t *dfcode; /* Compiled display filter program */
-#ifdef HAVE_LIBPCAP
- gchar *cfilter; /* Capture filter string */
-#endif
- gchar *sfilter; /* Search filter string */
- gboolean sbackward; /* TRUE if search is backward, FALSE if forward */
- union wtap_pseudo_header pseudo_header; /* Packet pseudo_header */
- guint8 pd[WTAP_MAX_PACKET_SIZE]; /* Packet data */
- GMemChunk *plist_chunk; /* Memory chunk for frame_data structures */
- frame_data *plist; /* Packet list */
- frame_data *plist_end; /* Last packet in list */
- frame_data *first_displayed; /* First frame displayed */
- frame_data *last_displayed; /* Last frame displayed */
- column_info cinfo; /* Column formatting information */
- frame_data *current_frame; /* Frame data for current frame */
- proto_tree *protocol_tree; /* Protocol tree for currently selected packet */
- epan_dissect_t *edt; /* Protocol dissection fo rcurrently selected packet */
- FILE *print_fh; /* File we're printing to */
-} capture_file;
-
-/* Return values from "read_cap_file()", "continue_tail_cap_file()",
- and "finish_tail_cap_file()". */
+ CF_OK, /**< operation succeeded */
+ CF_ERROR /**< operation got an error (function may provide err with details) */
+} cf_status_t;
+
+/** Return values from functions that read capture files. */
+typedef enum {
+ CF_READ_OK, /**< operation succeeded */
+ CF_READ_ERROR, /**< operation got an error (function may provide err with details) */
+ CF_READ_ABORTED /**< operation aborted by user */
+} cf_read_status_t;
+
+/** Return values from functions that print sets of packets. */
typedef enum {
- READ_SUCCESS, /* read succeeded */
- READ_ERROR, /* read got an error */
- READ_ABORTED /* read aborted by user */
-} read_status_t;
-
-int open_cap_file(char *, gboolean, capture_file *);
-void close_cap_file(capture_file *);
-read_status_t read_cap_file(capture_file *, int *);
-int start_tail_cap_file(char *, gboolean, capture_file *);
-read_status_t continue_tail_cap_file(capture_file *, int, int *);
-read_status_t finish_tail_cap_file(capture_file *, int *);
-/* size_t read_frame_header(capture_file *); */
-int save_cap_file(char *, capture_file *, gboolean, gboolean, guint);
-
-int filter_packets(capture_file *cf, gchar *dfilter);
-void colorize_packets(capture_file *);
-void redissect_packets(capture_file *cf);
-int print_packets(capture_file *cf, print_args_t *print_args);
-void change_time_formats(capture_file *);
-gboolean find_packet(capture_file *cf, dfilter_t *sfcode);
+ CF_PRINT_OK, /**< print operation succeeded */
+ CF_PRINT_OPEN_ERROR, /**< print operation failed while opening printer */
+ CF_PRINT_WRITE_ERROR /**< print operation failed while writing to the printer */
+} cf_print_status_t;
typedef enum {
- FOUND_FRAME, /* found the frame */
- NO_SUCH_FRAME, /* no frame with that number */
- FRAME_NOT_DISPLAYED /* frame with that number isn't displayed */
-} goto_result_t;
-goto_result_t goto_frame(capture_file *cf, guint fnumber);
+ cf_cb_file_closing,
+ cf_cb_file_closed,
+ cf_cb_file_read_started,
+ cf_cb_file_read_finished,
+ cf_cb_packet_selected,
+ cf_cb_packet_unselected,
+ cf_cb_field_unselected,
+ cf_cb_file_save_started,
+ cf_cb_file_save_finished,
+ cf_cb_file_save_reload_finished,
+ cf_cb_file_save_failed
+} cf_cbs;
-void select_packet(capture_file *, int);
-void unselect_packet(capture_file *);
+typedef void (*cf_callback_t) (gint event, gpointer data, gpointer user_data);
-void unselect_field(void);
+typedef struct {
+ const char *string;
+ size_t string_len;
+ capture_file *cf;
+ gboolean frame_matched;
+ field_info *finfo;
+} match_data;
-/* Moves or copies a file. Returns 0 on failure, 1 on success */
-int file_mv(char *from, char *to);
+extern void
+cf_callback_add(cf_callback_t func, gpointer user_data);
-/* Copies a file. Returns 0 on failure, 1 on success */
-int file_cp(char *from, char *to);
+extern void
+cf_callback_remove(cf_callback_t func);
+
+/**
+ * Open a capture file.
+ *
+ * @param cf the capture file to be opened
+ * @param fname the filename to be opened
+ * @param is_tempfile is this a temporary file?
+ * @param err error code
+ * @return one of cf_status_t
+ */
+cf_status_t cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err);
+
+/**
+ * Close a capture file.
+ *
+ * @param cf the capture file to be closed
+ */
+void cf_close(capture_file *cf);
+
+/**
+ * Reload a capture file.
+ *
+ * @param cf the capture file to be reloaded
+ */
+void cf_reload(capture_file *cf);
+
+/**
+ * Read all packets of a capture file into the internal structures.
+ *
+ * @param cf the capture file to be read
+ * @param from_save reread asked from cf_save
+ * @return one of cf_read_status_t
+ */
+cf_read_status_t cf_read(capture_file *cf, gboolean from_save);
+
+/**
+ * Read the pseudo-header and raw data for a packet. It will pop
+ * up an alert box if there's an error.
+ *
+ * @param cf the capture file from which to read the packet
+ * @param fdata the frame_data structure for the packet in question
+ * @param pseudo_header pointer to a wtap_pseudo_header union into
+ * which to read the packet's pseudo-header
+ * @param pd a guin8 array into which to read the packet's raw data
+ * @return TRUE if the read succeeded, FALSE if there was an error
+ */
+gboolean cf_read_frame_r(capture_file *cf, frame_data *fdata,
+ union wtap_pseudo_header *pseudo_header, guint8 *pd);
+
+/**
+ * Read the pseudo-header and raw data for a packet into a
+ * capture_file structure's pseudo_header and pd members.
+ * It will pop up an alert box if there's an error.
+ *
+ * @param cf the capture file from which to read the packet
+ * @param fdata the frame_data structure for the packet in question
+ * @return TRUE if the read succeeded, FALSE if there was an error
+ */
+gboolean cf_read_frame(capture_file *cf, frame_data *fdata);
+
+/**
+ * Start reading from the end of a capture file.
+ * This is used in "Update list of packets in Real-Time".
+ *
+ * @param cf the capture file to be read from
+ * @param fname the filename to be read from
+ * @param is_tempfile is this a temporary file?
+ * @param err the error code, if an error had occured
+ * @return one of cf_status_t
+ */
+cf_status_t cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err);
+
+/**
+ * Read packets from the "end" of a capture file.
+ *
+ * @param cf the capture file to be read from
+ * @param to_read the number of packets to read
+ * @param err the error code, if an error had occured
+ * @return one of cf_read_status_t
+ */
+cf_read_status_t cf_continue_tail(capture_file *cf, volatile int to_read, int *err);
+
+/**
+ * Fake reading packets from the "end" of a capture file.
+ *
+ * @param cf the capture file to be read from
+ */
+void cf_fake_continue_tail(capture_file *cf);
+
+/**
+ * Finish reading from "end" of a capture file.
+ *
+ * @param cf the capture file to be read from
+ * @param err the error code, if an error had occured
+ * @return one of cf_read_status_t
+ */
+cf_read_status_t cf_finish_tail(capture_file *cf, int *err);
+
+/**
+ * Determine whether this capture file (or a range of it) can be saved
+ * (except by copying the raw file data).
+ *
+ * @param cf the capture file to check
+ * @return TRUE if it can be saved, FALSE if it can't
+ */
+gboolean cf_can_save_as(capture_file *cf);
+
+/**
+ * Save a capture file (or a range of it).
+ *
+ * @param cf the capture file to save to
+ * @param fname the filename to save to
+ * @param range the range of packets to save
+ * @param save_format the format of the file to save (libpcap, ...)
+ * @param compressed whether to gzip compress the file
+ * @return one of cf_status_t
+ */
+cf_status_t cf_save(capture_file * cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed);
+
+/**
+ * Get a displayable name of the capture file.
+ *
+ * @param cf the capture file
+ * @return the displayable name (don't have to be g_free'd)
+ */
+const gchar *cf_get_display_name(capture_file *cf);
+
+/**
+ * Set the source of the capture data for temporary files, e.g.
+ * "Interface eth0" or "Pipe from Pong"
+ *
+ * @param cf the capture file
+ * @param source the source description. this will be copied internally.
+ */
+void cf_set_tempfile_source(capture_file *cf, gchar *source);
+
+/**
+ * Get the source of the capture data for temporary files. Guaranteed to
+ * return a non-null value. The returned value should not be freed.
+ *
+ * @param cf the capture file
+ */
+const gchar *cf_get_tempfile_source(capture_file *cf);
+
+/**
+ * Get the number of packets in the capture file.
+ *
+ * @param cf the capture file
+ * @return the number of packets in the capture file
+ */
+int cf_get_packet_count(capture_file *cf);
+
+/**
+ * Set the number of packets in the capture file.
+ *
+ * @param cf the capture file
+ * @param packet_count the number of packets in the capture file
+ */
+void cf_set_packet_count(capture_file *cf, int packet_count);
+
+/**
+ * Is this capture file a temporary file?
+ *
+ * @param cf the capture file
+ * @return TRUE if it's a temporary file, FALSE otherwise
+ */
+gboolean cf_is_tempfile(capture_file *cf);
+
+/**
+ * Set flag, that this file is a tempfile.
+ */
+void cf_set_tempfile(capture_file *cf, gboolean is_tempfile);
+
+/**
+ * Set flag, if the number of packet drops while capturing are known or not.
+ *
+ * @param cf the capture file
+ * @param drops_known TRUE if the number of packet drops are known, FALSE otherwise
+ */
+void cf_set_drops_known(capture_file *cf, gboolean drops_known);
+
+/**
+ * Set the number of packet drops while capturing.
+ *
+ * @param cf the capture file
+ * @param drops the number of packet drops occured while capturing
+ */
+void cf_set_drops(capture_file *cf, guint32 drops);
+
+/**
+ * Get flag state, if the number of packet drops while capturing are known or not.
+ *
+ * @param cf the capture file
+ * @return TRUE if the number of packet drops are known, FALSE otherwise
+ */
+gboolean cf_get_drops_known(capture_file *cf);
+
+/**
+ * Get the number of packet drops while capturing.
+ *
+ * @param cf the capture file
+ * @return the number of packet drops occured while capturing
+ */
+guint32 cf_get_drops(capture_file *cf);
+
+/**
+ * Set the read filter.
+ * @todo this shouldn't be required, remove it somehow
+ *
+ * @param cf the capture file
+ * @param rfcode the readfilter
+ */
+void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode);
+
+/**
+ * "Display Filter" packets in the capture file.
+ *
+ * @param cf the capture file
+ * @param dfilter the display filter
+ * @param force TRUE if do in any case, FALSE only if dfilter changed
+ * @return one of cf_status_t
+ */
+cf_status_t cf_filter_packets(capture_file *cf, gchar *dfilter, gboolean force);
+
+/**
+ * At least one "Refence Time" flag has changed, rescan all packets.
+ *
+ * @param cf the capture file
+ */
+void cf_reftime_packets(capture_file *cf);
+
+/**
+ * Return the time it took to load the file
+ */
+gulong cf_get_computed_elapsed(void);
+
+/**
+ * "Something" has changed, rescan all packets.
+ *
+ * @param cf the capture file
+ */
+void cf_redissect_packets(capture_file *cf);
+
+/**
+ * Rescan all packets and just run taps - don't reconstruct the display.
+ *
+ * @param cf the capture file
+ * @return one of cf_read_status_t
+ */
+cf_read_status_t cf_retap_packets(capture_file *cf);
+
+/**
+ * Adjust timestamp precision if auto is selected.
+ *
+ * @param cf the capture file
+ */
+void cf_timestamp_auto_precision(capture_file *cf);
+
+/**
+ * Print the capture file.
+ *
+ * @param cf the capture file
+ * @param print_args the arguments what and how to print
+ * @return one of cf_print_status_t
+ */
+cf_print_status_t cf_print_packets(capture_file *cf, print_args_t *print_args);
+
+/**
+ * Print (export) the capture file into PDML format.
+ *
+ * @param cf the capture file
+ * @param print_args the arguments what and how to export
+ * @return one of cf_print_status_t
+ */
+cf_print_status_t cf_write_pdml_packets(capture_file *cf, print_args_t *print_args);
+
+/**
+ * Print (export) the capture file into PSML format.
+ *
+ * @param cf the capture file
+ * @param print_args the arguments what and how to export
+ * @return one of cf_print_status_t
+ */
+cf_print_status_t cf_write_psml_packets(capture_file *cf, print_args_t *print_args);
+
+/**
+ * Print (export) the capture file into CSV format.
+ *
+ * @param cf the capture file
+ * @param print_args the arguments what and how to export
+ * @return one of cf_print_status_t
+ */
+cf_print_status_t cf_write_csv_packets(capture_file *cf, print_args_t *print_args);
+
+/**
+ * Print (export) the capture file into C Arrays format.
+ *
+ * @param cf the capture file
+ * @param print_args the arguments what and how to export
+ * @return one of cf_print_status_t
+ */
+cf_print_status_t cf_write_carrays_packets(capture_file *cf, print_args_t *print_args);
+
+/**
+ * Find packet with a protocol tree item that contains a specified text string.
+ *
+ * @param cf the capture file
+ * @param string the string to find
+ * @param dir direction in which to search
+ * @return TRUE if a packet was found, FALSE otherwise
+ */
+gboolean cf_find_packet_protocol_tree(capture_file *cf, const char *string,
+ search_direction dir);
+
+/**
+ * Find field with a label that contains text string cfile->sfilter.
+ *
+ * @param cf the capture file
+ * @param tree the protocol tree
+ * @param mdata the first field (mdata->finfo) that matched the string
+ * @return TRUE if a packet was found, FALSE otherwise
+ */
+extern gboolean cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree,
+ match_data *mdata);
+
+/**
+ * Find packet whose summary line contains a specified text string.
+ *
+ * @param cf the capture file
+ * @param string the string to find
+ * @param dir direction in which to search
+ * @return TRUE if a packet was found, FALSE otherwise
+ */
+gboolean cf_find_packet_summary_line(capture_file *cf, const char *string,
+ search_direction dir);
+
+/**
+ * Find packet whose data contains a specified byte string.
+ *
+ * @param cf the capture file
+ * @param string the string to find
+ * @param string_size the size of the string to find
+ * @param dir direction in which to search
+ * @return TRUE if a packet was found, FALSE otherwise
+ */
+gboolean cf_find_packet_data(capture_file *cf, const guint8 *string,
+ size_t string_size, search_direction dir);
+
+/**
+ * Find packet that matches a compiled display filter.
+ *
+ * @param cf the capture file
+ * @param sfcode the display filter to match
+ * @param dir direction in which to search
+ * @return TRUE if a packet was found, FALSE otherwise
+ */
+gboolean cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
+ search_direction dir);
+
+/**
+ * Find packet that matches a display filter given as a text string.
+ *
+ * @param cf the capture file
+ * @param filter the display filter to match
+ * @param dir direction in which to search
+ * @return TRUE if a packet was found, FALSE otherwise
+ */
+gboolean
+cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
+ search_direction dir);
+
+/**
+ * Find marked packet.
+ *
+ * @param cf the capture file
+ * @param dir direction in which to search
+ * @return TRUE if a packet was found, FALSE otherwise
+ */
+gboolean cf_find_packet_marked(capture_file *cf, search_direction dir);
+
+/**
+ * Find time-reference packet.
+ *
+ * @param cf the capture file
+ * @param dir direction in which to search
+ * @return TRUE if a packet was found, FALSE otherwise
+ */
+gboolean cf_find_packet_time_reference(capture_file *cf, search_direction dir);
+
+/**
+ * GoTo Packet in first row.
+ *
+ * @return TRUE if the first row exists, FALSE otherwise
+ */
+gboolean cf_goto_top_frame(void);
+
+/**
+ * GoTo Packet in last row.
+ *
+ * @return TRUE if last row exists, FALSE otherwise
+ */
+gboolean cf_goto_bottom_frame(void);
+
+/**
+ * GoTo Packet with the given row.
+ *
+ * @param cf the capture file
+ * @param row the row to go to
+ * @return TRUE if this row exists, FALSE otherwise
+ */
+gboolean cf_goto_frame(capture_file *cf, guint row);
+
+/**
+ * Go to frame specified by currently selected protocol tree field.
+ * (Go To Corresponding Packet)
+ * @todo this is ugly and should be improved!
+ *
+ * @param cf the capture file
+ * @return TRUE if this packet exists, FALSE otherwise
+ */
+gboolean cf_goto_framenum(capture_file *cf);
+
+/**
+ * Select the packet in the given row.
+ *
+ * @param cf the capture file
+ * @param row the row to select
+ */
+void cf_select_packet(capture_file *cf, int row);
+
+/**
+ * Unselect all packets, if any.
+ *
+ * @param cf the capture file
+ */
+void cf_unselect_packet(capture_file *cf);
+
+/**
+ * Unselect all protocol tree fields, if any.
+ *
+ * @param cf the capture file
+ */
+void cf_unselect_field(capture_file *cf);
+
+/**
+ * Mark a particular frame in a particular capture.
+ *
+ * @param cf the capture file
+ * @param frame the frame to be marked
+ */
+void cf_mark_frame(capture_file *cf, frame_data *frame);
+
+/**
+ * Unmark a particular frame in a particular capture.
+ *
+ * @param cf the capture file
+ * @param frame the frame to be unmarked
+ */
+void cf_unmark_frame(capture_file *cf, frame_data *frame);
+
+/**
+ * Ignore a particular frame in a particular capture.
+ *
+ * @param cf the capture file
+ * @param frame the frame to be ignored
+ */
+void cf_ignore_frame(capture_file *cf, frame_data *frame);
+
+/**
+ * Unignore a particular frame in a particular capture.
+ *
+ * @param cf the capture file
+ * @param frame the frame to be unignored
+ */
+void cf_unignore_frame(capture_file *cf, frame_data *frame);
+
+/**
+ * Merge two (or more) capture files into one.
+ * @todo is this the right place for this function? It doesn't have to do a lot with capture_file.
+ *
+ * @param out_filename pointer to output filename; if output filename is
+ * NULL, a temporary file name is generated and *out_filename is set
+ * to point to the generated file name
+ * @param in_file_count the number of input files to merge
+ * @param in_filenames array of input filenames
+ * @param file_type the output filetype
+ * @param do_append FALSE to merge chronologically, TRUE simply append
+ * @return one of cf_status_t
+ */
+cf_status_t
+cf_merge_files(char **out_filename, int in_file_count,
+ char *const *in_filenames, int file_type, gboolean do_append);
+
+#if defined(HAVE_HEIMDAL_KERBEROS) || defined(HAVE_MIT_KERBEROS)
+void read_keytab_file(const char *);
+#endif
-char *file_open_error_message(int, gboolean);
-char *file_read_error_message(int);
-char *file_write_error_message(int);
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
#endif /* file.h */
git.samba.org / obnox / wireshark / wip.git / blobdiff