/* prefs.c
* Routines for handling preferences
*
- * $Id: prefs.c,v 1.36 2000/08/15 20:53:30 deniel Exp $
+ * $Id: prefs.c,v 1.49 2001/04/13 14:59:28 jfoster Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
#include <sys/stat.h>
#endif
+#include <epan.h>
+#include <filesystem.h>
#include "globals.h"
#include "packet.h"
#include "file.h"
#include "prefs.h"
+#include "proto.h"
#include "column.h"
#include "print.h"
-#include "util.h"
#include "prefs-int.h"
static int set_pref(gchar*, gchar*);
static GList *get_string_list(gchar *);
static void clear_string_list(GList *);
+static void free_col_info(e_prefs *);
#define PF_NAME "preferences"
static gboolean init_prefs = TRUE;
static gchar *pf_path = NULL;
+/*
+ * XXX - variables to allow us to attempt to interpret the first
+ * "mgcp.{tcp,udp}.port" in a preferences file as
+ * "mgcp.{tcp,udp}.gateway_port" and the second as
+ * "mgcp.{tcp,udp}.callagent_port".
+ */
+static int mgcp_tcp_port_count;
+static int mgcp_udp_port_count;
+
e_prefs prefs;
gchar *gui_ptree_line_style_text[] =
gchar *gui_ptree_expander_style_text[] =
{ "NONE", "SQUARE", "TRIANGLE", "CIRCULAR", NULL };
+gchar *gui_hex_dump_highlight_style_text[] =
+ { "BOLD", "INVERSE", NULL };
/*
* List of modules with preference settings.
return module;
}
+/*
+ * Register that a protocol has preferences.
+ */
+module_t *
+prefs_register_protocol(int id, void (*apply_cb)(void))
+{
+ return prefs_register_module(proto_get_protocol_filter_name(id),
+ proto_get_protocol_short_name(id),
+ apply_cb);
+}
+
/*
* Find a module, given its name.
*/
void
prefs_register_enum_preference(module_t *module, const char *name,
const char *title, const char *description, gint *var,
- const enum_val *enumvals, gboolean radio_buttons)
+ const enum_val_t *enumvals, gboolean radio_buttons)
{
pref_t *preference;
}
/*
- * Takes a string, a pointer to an array of "enum_val"s, and a default gint
+ * Takes a string, a pointer to an array of "enum_val_t"s, and a default gint
* value.
* The array must be terminated by an entry with a null "name" string.
* If the string matches a "name" strings in an entry, the value from that
* third argument is returned.
*/
gint
-find_val_for_string(const char *needle, const enum_val *haystack,
+find_val_for_string(const char *needle, const enum_val_t *haystack,
gint default_value)
{
int i = 0;
static void read_prefs_file(const char *pf_path, FILE *pf);
+/* Read the preferences file, fill in "prefs", and return a pointer to it.
+
+ If we got an error (other than "it doesn't exist") trying to read
+ the global preferences file, stuff the errno into "*gpf_errno_return"
+ and a pointer to the path of the file into "*gpf_path_return", and
+ return NULL.
+
+ If we got an error (other than "it doesn't exist") trying to read
+ the user's preferences file, stuff the errno into "*pf_errno_return"
+ and a pointer to the path of the file into "*pf_path_return", and
+ return NULL. */
e_prefs *
read_prefs(int *gpf_errno_return, char **gpf_path_return,
int *pf_errno_return, char **pf_path_return)
prefs.gui_ptree_sel_browse = FALSE;
prefs.gui_ptree_line_style = 0;
prefs.gui_ptree_expander_style = 1;
+ prefs.gui_hex_dump_highlight_style = 1;
+#ifdef WIN32
+ prefs.gui_font_name = g_strdup("-*-lucida console-medium-r-*-*-*-100-*-*-*-*-*-*");
+#else
+ /*
+ * XXX - for now, we make the initial font name a pattern that matches
+ * only ISO 8859/1 fonts, so that we don't match 2-byte fonts such
+ * as ISO 10646 fonts.
+ *
+ * Users in locales using other one-byte fonts will have to choose
+ * a different font from the preferences dialog - or put the font
+ * selection in the global preferences file to make that font the
+ * default for all users who don't explicitly specify a different
+ * font.
+ *
+ * Making this a font set rather than a font has two problems:
+ *
+ * 1) as far as I know, you can't select font sets with the
+ * font selection dialog;
+ *
+ * 2) if you use a font set, the text to be drawn must be a
+ * multi-byte string in the appropriate locale, but
+ * Ethereal does *NOT* guarantee that's the case - in
+ * the hex-dump window, each character in the text portion
+ * of the display must be a *single* byte, and in the
+ * packet-list and protocol-tree windows, text extracted
+ * from the packet is not necessarily in the right format.
+ *
+ * "Doing this right" may, for the packet-list and protocol-tree
+ * windows, require that dissectors know what the locale is
+ * *AND* know what locale and text representation is used in
+ * the packets they're dissecting, and may be impossible in
+ * the hex-dump window (except by punting and displaying only
+ * ASCII characters).
+ *
+ * GTK+ 2.0 may simplify part of the problem, as it will, as I
+ * understand it, use UTF-8-encoded Unicode as its internal
+ * character set; however, we'd still have to know whatever
+ * character set and encoding is used in the packet (which
+ * may differ for different protocols, e.g. SMB might use
+ * PC code pages for some strings and Unicode for others, whilst
+ * NFS might use some UNIX character set encoding, e.g. ISO 8859/x,
+ * or one of the EUC character sets for Asian languages, or one
+ * of the other multi-byte character sets, or UTF-8, or...).
+ *
+ * I.e., as far as I can tell, "internationalizing" the packet-list,
+ * protocol-tree, and hex-dump windows involves a lot more than, say,
+ * just using font sets rather than fonts.
+ */
+ prefs.gui_font_name = g_strdup("-*-fixed-medium-r-semicondensed-*-*-120-*-*-*-*-iso8859-1");
+#endif
+ prefs.gui_marked_fg.pixel = 65535;
+ prefs.gui_marked_fg.red = 65535;
+ prefs.gui_marked_fg.green = 65535;
+ prefs.gui_marked_fg.blue = 65535;
+ prefs.gui_marked_bg.pixel = 0;
+ prefs.gui_marked_bg.red = 0;
+ prefs.gui_marked_bg.green = 0;
+ prefs.gui_marked_bg.blue = 0;
+
+/* set the default values for the capture dialog box */
+ prefs.capture_prom_mode = 0;
+ prefs.capture_real_time = 0;
+ prefs.capture_auto_scroll = 0;
+ prefs.capture_name_resolve= 1;
+
}
/* Read the global preferences file, if it exists. */
gboolean got_val = FALSE;
gint var_len = 0, val_len = 0, fline = 1, pline = 1;
+ /*
+ * Start out the counters of "mgcp.{tcp,udp}.port" entries we've
+ * seen.
+ */
+ mgcp_tcp_port_count = 0;
+ mgcp_udp_port_count = 0;
+
while ((got_c = getc(pf)) != EOF) {
if (got_c == '\n') {
state = START;
u_char *p, *colonp;
int ret;
+ /*
+ * Set the counters of "mgcp.{tcp,udp}.port" entries we've
+ * seen to values that keep us from trying to interpret tham
+ * as "mgcp.{tcp,udp}.gateway_port" or "mgcp.{tcp,udp}.callagent_port",
+ * as, from the command line, we have no way of guessing which
+ * the user had in mind.
+ */
+ mgcp_tcp_port_count = -1;
+ mgcp_udp_port_count = -1;
+
colonp = strchr(prefarg, ':');
if (colonp == NULL)
return PREFS_SET_SYNTAX_ERR;
#define PRS_GUI_PTREE_SEL_BROWSE "gui.protocol_tree_sel_browse"
#define PRS_GUI_PTREE_LINE_STYLE "gui.protocol_tree_line_style"
#define PRS_GUI_PTREE_EXPANDER_STYLE "gui.protocol_tree_expander_style"
+#define PRS_GUI_HEX_DUMP_HIGHLIGHT_STYLE "gui.hex_dump_highlight_style"
+#define PRS_GUI_FONT_NAME "gui.font_name"
+#define PRS_GUI_MARKED_FG "gui.marked_frame.fg"
+#define PRS_GUI_MARKED_BG "gui.marked_frame.bg"
+
+/* values for the capture dialog box */
+#define PRS_CAP_REAL_TIME "capture.real_time_update"
+#define PRS_CAP_PROM_MODE "capture.prom_mode"
+#define PRS_CAP_AUTO_SCROLL "capture.auto_scroll"
+#define PRS_CAP_NAME_RESOLVE "capture.name_resolve"
#define RED_COMPONENT(x) ((((x) >> 16) & 0xff) * 65535 / 255)
#define GREEN_COMPONENT(x) ((((x) >> 8) & 0xff) * 65535 / 255)
prefs.pr_cmd = g_strdup(value);
} else if (strcmp(pref_name, PRS_COL_FMT) == 0) {
if ((col_l = get_string_list(value)) && (g_list_length(col_l) % 2) == 0) {
- while (prefs.col_list) {
- cfmt = prefs.col_list->data;
- g_free(cfmt->title);
- g_free(cfmt->fmt);
- g_free(cfmt);
- prefs.col_list = g_list_remove_link(prefs.col_list, prefs.col_list);
- }
+ free_col_info(&prefs);
+ prefs.col_list = NULL;
llen = g_list_length(col_l);
prefs.num_cols = llen / 2;
col_l = g_list_first(col_l);
} else if (strcmp(pref_name, PRS_GUI_PTREE_EXPANDER_STYLE) == 0) {
prefs.gui_ptree_expander_style =
find_index_from_string_array(value, gui_ptree_expander_style_text, 1);
+ } else if (strcmp(pref_name, PRS_GUI_HEX_DUMP_HIGHLIGHT_STYLE) == 0) {
+ prefs.gui_hex_dump_highlight_style =
+ find_index_from_string_array(value, gui_hex_dump_highlight_style_text, 1);
+ } else if (strcmp(pref_name, PRS_GUI_FONT_NAME) == 0) {
+ if (prefs.gui_font_name != NULL)
+ g_free(prefs.gui_font_name);
+ prefs.gui_font_name = g_strdup(value);
+ } else if (strcmp(pref_name, PRS_GUI_MARKED_FG) == 0) {
+ cval = strtoul(value, NULL, 16);
+ prefs.gui_marked_fg.pixel = 0;
+ prefs.gui_marked_fg.red = RED_COMPONENT(cval);
+ prefs.gui_marked_fg.green = GREEN_COMPONENT(cval);
+ prefs.gui_marked_fg.blue = BLUE_COMPONENT(cval);
+ } else if (strcmp(pref_name, PRS_GUI_MARKED_BG) == 0) {
+ cval = strtoul(value, NULL, 16);
+ prefs.gui_marked_bg.pixel = 0;
+ prefs.gui_marked_bg.red = RED_COMPONENT(cval);
+ prefs.gui_marked_bg.green = GREEN_COMPONENT(cval);
+ prefs.gui_marked_bg.blue = BLUE_COMPONENT(cval);
+
+/* handle the capture options */
+ } else if (strcmp(pref_name, PRS_CAP_PROM_MODE) == 0) {
+ prefs.capture_prom_mode = ((strcmp(value, "TRUE") == 0)?TRUE:FALSE);
+
+ } else if (strcmp(pref_name, PRS_CAP_REAL_TIME) == 0) {
+ prefs.capture_real_time = ((strcmp(value, "TRUE") == 0)?TRUE:FALSE);
+
+ } else if (strcmp(pref_name, PRS_CAP_AUTO_SCROLL) == 0) {
+ prefs.capture_auto_scroll = ((strcmp(value, "TRUE") == 0)?TRUE:FALSE);
+
+ } else if (strcmp(pref_name, PRS_CAP_NAME_RESOLVE) == 0) {
+ prefs.capture_name_resolve = ((strcmp(value, "TRUE") == 0)?TRUE:FALSE);
+
} else {
/* To which module does this preference belong? */
dotp = strchr(pref_name, '.');
return PREFS_SET_SYNTAX_ERR; /* no ".", so no module/name separator */
*dotp = '\0'; /* separate module and preference name */
module = find_module(pref_name);
+
+ /*
+ * XXX - "Diameter" rather than "diameter" was used in earlier
+ * versions of Ethereal; if we didn't find the module, and its name
+ * was "Diameter", look for "diameter" instead.
+ */
+ if (module == NULL && strcmp(pref_name, "Diameter") == 0)
+ module = find_module("diameter");
*dotp = '.'; /* put the preference string back */
if (module == NULL)
return PREFS_SET_NO_SUCH_PREF; /* no such module */
dotp++; /* skip past separator to preference name */
pref = find_preference(module, dotp);
+
+ /*
+ * XXX - "mgcp.display raw text toggle" and "mgcp.display dissect tree"
+ * rather than "mgcp.display_raw_text" and "mgcp.display_dissect_tree"
+ * were used in earlier versions of Ethereal; if we didn't find the
+ * preference, it was an MGCP preference, and its name was
+ * "display raw text toggle" or "display dissect tree", look for
+ * "display_raw_text" or "display_dissect_tree" instead.
+ *
+ * "mgcp.tcp.port" and "mgcp.udp.port" are harder to handle, as both
+ * the gateway and callagent ports were given those names; we interpret
+ * the first as "mgcp.{tcp,udp}.gateway_port" and the second as
+ * "mgcp.{tcp,udp}.callagent_port", as that's the order in which
+ * they were registered by the MCCP dissector and thus that's the
+ * order in which they were written to the preferences file. (If
+ * we're not reading the preferences file, but are handling stuff
+ * from a "-o" command-line option, we have no clue which the user
+ * had in mind - they should have used "mgcp.{tcp,udp}.gateway_port"
+ * or "mgcp.{tcp,udp}.callagent_port" instead.)
+ */
+ if (pref == NULL && strncmp(pref_name, "mgcp.", 5) == 0) {
+ if (strcmp(dotp, "display raw text toggle") == 0)
+ pref = find_preference(module, "display_raw_text");
+ else if (strcmp(dotp, "display dissect tree") == 0)
+ pref = find_preference(module, "display_dissect_tree");
+ else if (strcmp(dotp, "tcp.port") == 0) {
+ mgcp_tcp_port_count++;
+ if (mgcp_tcp_port_count == 1) {
+ /* It's the first one */
+ pref = find_preference(module, "tcp.gateway_port");
+ } else if (mgcp_tcp_port_count == 2) {
+ /* It's the second one */
+ pref = find_preference(module, "tcp.callagent_port");
+ }
+ /* Otherwise it's from the command line, and we don't bother
+ mapping it. */
+ } else if (strcmp(dotp, "udp.port") == 0) {
+ mgcp_udp_port_count++;
+ if (mgcp_udp_port_count == 1) {
+ /* It's the first one */
+ pref = find_preference(module, "udp.gateway_port");
+ } else if (mgcp_udp_port_count == 2) {
+ /* It's the second one */
+ pref = find_preference(module, "udp.callagent_port");
+ }
+ /* Otherwise it's from the command line, and we don't bother
+ mapping it. */
+ }
+ }
if (pref == NULL)
return PREFS_SET_NO_SUCH_PREF; /* no such preference */
else
bval = FALSE;
if (*pref->varp.bool != bval) {
- module->prefs_changed = TRUE;
- *pref->varp.bool = bval;
+ module->prefs_changed = TRUE;
+ *pref->varp.bool = bval;
}
break;
enum_val = find_val_for_string(value,
pref->info.enum_info.enumvals, 1);
if (*pref->varp.enump != enum_val) {
- module->prefs_changed = TRUE;
- *pref->varp.enump = enum_val;
+ module->prefs_changed = TRUE;
+ *pref->varp.enump = enum_val;
}
break;
{
pref_t *pref = data;
write_pref_arg_t *arg = user_data;
- const enum_val *enum_valp;
+ const enum_val_t *enum_valp;
const char *val_string;
fprintf(arg->pf, "\n# %s\n", pref->description);
g_list_foreach(arg.module->prefs, write_pref, &arg);
}
+/* Write out "prefs" to the user's preferences file, and return 0.
+
+ If we got an error, stuff a pointer to the path of the preferences file
+ into "*pf_path_return", and return the errno. */
int
write_prefs(char **pf_path_return)
{
fprintf(pf, PRS_GUI_PTREE_EXPANDER_STYLE ": %s\n",
gui_ptree_expander_style_text[prefs.gui_ptree_expander_style]);
+ fprintf(pf, "\n# Hex dump highlight style. One of: BOLD, INVERSE\n");
+ fprintf(pf, PRS_GUI_HEX_DUMP_HIGHLIGHT_STYLE ": %s\n",
+ gui_hex_dump_highlight_style_text[prefs.gui_hex_dump_highlight_style]);
+
+ fprintf(pf, "\n# Font name for packet list, protocol tree, and hex dump panes.\n");
+ fprintf(pf, PRS_GUI_FONT_NAME ": %s\n", prefs.gui_font_name);
+
+ fprintf (pf, "\n# Color preferences for a marked frame. Each value is a six "
+ "digit hexadecimal value in the form rrggbb.\n");
+ fprintf (pf, "%s: %02x%02x%02x\n", PRS_GUI_MARKED_FG,
+ (prefs.gui_marked_fg.red * 255 / 65535),
+ (prefs.gui_marked_fg.green * 255 / 65535),
+ (prefs.gui_marked_fg.blue * 255 / 65535));
+ fprintf (pf, "%s: %02x%02x%02x\n", PRS_GUI_MARKED_BG,
+ (prefs.gui_marked_bg.red * 255 / 65535),
+ (prefs.gui_marked_bg.green * 255 / 65535),
+ (prefs.gui_marked_bg.blue * 255 / 65535));
+
+/* write the capture options */
+ fprintf(pf, "\n# Capture in promiscuous mode? TRUE/FALSE\n");
+ fprintf(pf, PRS_CAP_PROM_MODE ": %s\n",
+ prefs.capture_prom_mode == TRUE ? "TRUE" : "FALSE");
+
+ fprintf(pf, "\n# Update packet list in real time during capture? TRUE/FALSE\n");
+ fprintf(pf, PRS_CAP_REAL_TIME ": %s\n",
+ prefs.capture_real_time == TRUE ? "TRUE" : "FALSE");
+
+ fprintf(pf, "\n# scroll packet list during capture? TRUE/FALSE\n");
+ fprintf(pf, PRS_CAP_AUTO_SCROLL ": %s\n",
+ prefs.capture_auto_scroll == TRUE ? "TRUE" : "FALSE");
+
+ fprintf(pf, "\n# resolve names during capture? TRUE/FALSE\n");
+ fprintf(pf, PRS_CAP_NAME_RESOLVE ": %s\n",
+ prefs.capture_name_resolve == TRUE ? "TRUE" : "FALSE");
+
g_list_foreach(modules, write_module_prefs, pf);
fclose(pf);
errors. */
return 0;
}
+
+/* Copy a set of preferences. */
+void
+copy_prefs(e_prefs *dest, e_prefs *src)
+{
+ fmt_data *src_cfmt, *dest_cfmt;
+ GList *entry;
+
+ dest->pr_format = src->pr_format;
+ dest->pr_dest = src->pr_dest;
+ dest->pr_file = g_strdup(src->pr_file);
+ dest->pr_cmd = g_strdup(src->pr_cmd);
+ dest->col_list = NULL;
+ for (entry = src->col_list; entry != NULL; entry = g_list_next(entry)) {
+ src_cfmt = entry->data;
+ dest_cfmt = (fmt_data *) g_malloc(sizeof(fmt_data));
+ dest_cfmt->title = g_strdup(src_cfmt->title);
+ dest_cfmt->fmt = g_strdup(src_cfmt->fmt);
+ dest->col_list = g_list_append(dest->col_list, dest_cfmt);
+ }
+ dest->num_cols = src->num_cols;
+ dest->st_client_fg = src->st_client_fg;
+ dest->st_client_bg = src->st_client_bg;
+ dest->st_server_fg = src->st_server_fg;
+ dest->st_server_bg = src->st_server_bg;
+ dest->gui_scrollbar_on_right = src->gui_scrollbar_on_right;
+ dest->gui_plist_sel_browse = src->gui_plist_sel_browse;
+ dest->gui_ptree_sel_browse = src->gui_ptree_sel_browse;
+ dest->gui_ptree_line_style = src->gui_ptree_line_style;
+ dest->gui_ptree_expander_style = src->gui_ptree_expander_style;
+ dest->gui_hex_dump_highlight_style = src->gui_hex_dump_highlight_style;
+ dest->gui_font_name = g_strdup(src->gui_font_name);
+ dest->gui_marked_fg = src->gui_marked_fg;
+ dest->gui_marked_bg = src->gui_marked_bg;
+/* values for the capture dialog box */
+ dest->capture_prom_mode = src->capture_prom_mode;
+ dest->capture_real_time = src->capture_real_time;
+ dest->capture_auto_scroll = src->capture_auto_scroll;
+ dest->capture_name_resolve = src->capture_name_resolve;
+
+}
+
+/* Free a set of preferences. */
+void
+free_prefs(e_prefs *pr)
+{
+ if (pr->pr_file != NULL) {
+ g_free(pr->pr_file);
+ pr->pr_file = NULL;
+ }
+ if (pr->pr_cmd != NULL) {
+ g_free(pr->pr_cmd);
+ pr->pr_cmd = NULL;
+ }
+ free_col_info(pr);
+ if (pr->gui_font_name != NULL) {
+ g_free(pr->gui_font_name);
+ pr->gui_font_name = NULL;
+ }
+}
+
+static void
+free_col_info(e_prefs *pr)
+{
+ fmt_data *cfmt;
+
+ while (pr->col_list != NULL) {
+ cfmt = pr->col_list->data;
+ g_free(cfmt->title);
+ g_free(cfmt->fmt);
+ g_free(cfmt);
+ pr->col_list = g_list_remove_link(pr->col_list, pr->col_list);
+ }
+ g_list_free(pr->col_list);
+ pr->col_list = NULL;
+}