*
* 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.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
+#include "config.h"
#ifdef HAVE_LIBPCAP
+#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
+#include <ctype.h>
#include <glib.h>
-#include <epan/prefs.h>
-#include "capture-pcap-util.h"
+#include "epan/prefs.h"
+#include "epan/ex-opt.h"
+#include "capture_ifinfo.h"
#include "capture_ui_utils.h"
+#include "ui/simple_dialog.h"
+#include "wiretap/wtap.h"
+#include "epan/to_str.h"
/*
* Find user-specified capture device description that matches interface
* name, if any.
*/
-static char *
+char *
capture_dev_user_descr_find(const gchar *if_name)
{
- char *p;
- char *p2 = NULL;
- char *descr = NULL;
- int lp = 0;
- int ct = 0;
-
- if (prefs.capture_devices_descr == NULL) {
- /* There are no descriptions. */
- return NULL;
- }
-
- if ((p = strstr(prefs.capture_devices_descr, if_name)) == NULL) {
- /* There are, but there isn't one for this interface. */
- return NULL;
- }
-
- while (*p != '\0') {
- /* error: ran into next interface description */
- if (*p == ',')
- return NULL;
- /* found left parenthesis, start of description */
- else if (*p == '(') {
- ct = 0;
- lp++;
- /* skip over left parenthesis */
- p++;
- /* save pointer to beginning of description */
- p2 = p;
- continue;
- }
- else if (*p == ')') {
- /* end of description */
- break;
- }
- else {
- p++;
- ct++;
- }
- }
-
- if ((lp == 1) && (ct > 0) && (p2 != NULL)) {
- /* Allocate enough space to return the string,
- which runs from p2 to p, plus a terminating
- '\0'. */
- descr = g_malloc(p - p2 + 1);
- memcpy(descr, p2, p - p2);
- descr[p - p2] = '\0';
- return descr;
- }
- else
- return NULL;
+ char *p;
+ char *p2 = NULL;
+ char *descr = NULL;
+ int lp = 0;
+ int ct = 0;
+
+ if ((prefs.capture_devices_descr == NULL) ||
+ (*prefs.capture_devices_descr == '\0')) {
+ /* There are no descriptions. */
+ return NULL;
+ }
+
+ if ((p = strstr(prefs.capture_devices_descr, if_name)) == NULL) {
+ /* There are, but there isn't one for this interface. */
+ return NULL;
+ }
+
+ while (*p != '\0') {
+ /* error: ran into next interface description */
+ if (*p == ',')
+ return NULL;
+ /* found left parenthesis, start of description */
+ else if (*p == '(') {
+ ct = 0;
+ lp++;
+ /* skip over left parenthesis */
+ p++;
+ /* save pointer to beginning of description */
+ p2 = p;
+ continue;
+ }
+ else if (*p == ')') {
+ /* end of description */
+ break;
+ }
+ else {
+ p++;
+ ct++;
+ }
+ }
+
+ if ((lp == 1) && (ct > 0) && (p2 != NULL)) {
+ /* Allocate enough space to return the string,
+ which runs from p2 to p, plus a terminating
+ '\0'. */
+ descr = (char *)g_malloc(p - p2 + 1);
+ memcpy(descr, p2, p - p2);
+ descr[p - p2] = '\0';
+ return descr;
+ }
+ else
+ return NULL;
+}
+
+gint
+capture_dev_user_linktype_find(const gchar *if_name)
+{
+ gchar *p, *next;
+ long linktype;
+
+ if ((prefs.capture_devices_linktypes == NULL) ||
+ (*prefs.capture_devices_linktypes == '\0')) {
+ /* There are no link-layer header types */
+ return -1;
+ }
+
+ if ((p = strstr(prefs.capture_devices_linktypes, if_name)) == NULL) {
+ /* There are, but there isn't one for this interface. */
+ return -1;
+ }
+
+ p += strlen(if_name) + 1;
+ linktype = strtol(p, &next, 10);
+ if (next == p || *next != ')' || linktype < 0) {
+ /* Syntax error */
+ return -1;
+ }
+ if (linktype > G_MAXINT) {
+ /* Value doesn't fit in a gint */
+ return -1;
+ }
+
+ return (gint)linktype;
+}
+
+#if defined(_WIN32) || defined(HAVE_PCAP_CREATE)
+gint
+capture_dev_user_buffersize_find(const gchar *if_name)
+{
+ gchar *p, *next;
+ gint buffersize;
+
+ if ((prefs.capture_devices_buffersize == NULL) ||
+ (*prefs.capture_devices_buffersize == '\0')) {
+ /* There are no buffersizes defined */
+ return -1;
+ }
+
+ if ((p = strstr(prefs.capture_devices_buffersize, if_name)) == NULL) {
+ /* There are, but there isn't one for this interface. */
+ return -1;
+ }
+
+ p += strlen(if_name) + 1;
+ buffersize = (gint)strtol(p, &next, 10);
+ if (next == p || *next != ')' || buffersize < 0) {
+ /* Syntax error */
+ return -1;
+ }
+ if (buffersize > G_MAXINT) {
+ /* Value doesn't fit in a gint */
+ return -1;
+ }
+
+ return (gint)buffersize;
}
+#endif
+
+gint
+capture_dev_user_snaplen_find(const gchar *if_name)
+{
+ gchar *p, *next;
+ gint snaplen;
+
+ if ((prefs.capture_devices_snaplen == NULL) ||
+ (*prefs.capture_devices_snaplen == '\0')) {
+ /* There is no snap length defined */
+ return -1;
+ }
+
+ if ((p = strstr(prefs.capture_devices_snaplen, if_name)) == NULL) {
+ /* There are, but there isn't one for this interface. */
+ return -1;
+ }
+
+ p += strlen(if_name) + 3;
+ snaplen = (gint)strtol(p, &next, 10);
+ if (next == p || *next != ')' || snaplen < 0) {
+ /* Syntax error */
+ return -1;
+ }
+ if (snaplen > WTAP_MAX_PACKET_SIZE) {
+ /* Value doesn't fit in a gint */
+ return -1;
+ }
+
+ return (gint)snaplen;
+}
+
+gboolean
+capture_dev_user_hassnap_find(const gchar *if_name)
+{
+ gchar *p, *next;
+ gboolean hassnap;
+
+ if ((prefs.capture_devices_snaplen == NULL) ||
+ (*prefs.capture_devices_snaplen == '\0')) {
+ /* There is no snap length defined */
+ return -1;
+ }
+
+ if ((p = strstr(prefs.capture_devices_snaplen, if_name)) == NULL) {
+ /* There are, but there isn't one for this interface. */
+ return -1;
+ }
+
+ p += strlen(if_name) + 1;
+ hassnap = (gboolean)strtol(p, &next, 10);
+ if (next == p || *next != '(') {
+ /* Syntax error */
+ return -1;
+ }
+
+ return (gboolean)hassnap;
+}
+
/*
* Return as descriptive a name for an interface as we can get.
* If the user has specified a comment, use that. Otherwise,
- * if get_interface_list() supplies a description, use that,
+ * if capture_interface_list() supplies a description, use that,
* otherwise use the interface name.
+ *
+ * The result must be g_free()'d when you're done with it.
+ *
+ * Note: given that this calls capture_interface_list(), which attempts to
+ * open all adapters it finds in order to check whether they can be
+ * captured on, this is an expensive routine to call, so don't call it
+ * frequently.
*/
char *
get_interface_descriptive_name(const char *if_name)
GList *if_entry;
if_info_t *if_info;
int err;
- char err_buf[CAPTURE_PCAP_ERRBUF_SIZE];
/* Do we have a user-supplied description? */
descr = capture_dev_user_descr_find(if_name);
if (descr != NULL) {
/* Yes - make a copy of that. */
descr = g_strdup(descr);
+ } else if (strcmp(if_name, "-") == 0) {
+ /*
+ * Strictly speaking, -X (extension) options are for modules, e.g. Lua
+ * and using one here stretches that definition. However, this doesn't
+ * waste a single-letter option on something that might be rarely used
+ * and is backward-compatible to 1.0.
+ */
+ descr = g_strdup(ex_opt_get_nth("stdin_descr", 0));
+ if (!descr) {
+ descr = g_strdup("Standard input");
+ }
} else {
/* No, we don't have a user-supplied description; did we get
one from the OS or libpcap? */
descr = NULL;
- if_list = get_interface_list(&err, err_buf);
+ if_list = capture_interface_list(&err, NULL);
if (if_list != NULL) {
if_entry = if_list;
do {
- if_info = if_entry->data;
+ if_info = (if_info_t *)if_entry->data;
if (strcmp(if_info->name, if_name) == 0) {
- if (if_info->description != NULL) {
- /* Return a copy of that - when we free the interface
- list, that'll also free up the strings to which
- it refers. */
- descr = g_strdup(if_info->description);
+ if (if_info->friendly_name != NULL) {
+ /* We have a "friendly name"; return a copy of that
+ as the description - when we free the interface
+ list, that'll also free up the strings to which
+ it refers. */
+ descr = g_strdup(if_info->friendly_name);
+ } else if (if_info->vendor_description != NULL) {
+ /* We have no "friendly name", but we have a vendor
+ description; return a copy of that - when we free
+ the interface list, that'll also free up the strings
+ to which it refers. */
+ descr = g_strdup(if_info->vendor_description);
}
break;
}
static if_info_t *
search_info(GList *if_list, gchar *if_name)
{
- GList *if_entry;
- if_info_t *if_info;
+ GList *if_entry;
+ if_info_t *if_info;
- for (if_entry = if_list; if_entry != NULL; if_entry = g_list_next(if_entry)) {
- if_info = if_entry->data;
+ for (if_entry = if_list; if_entry != NULL; if_entry = g_list_next(if_entry)) {
+ if_info = (if_info_t *)if_entry->data;
- if(strcmp(if_name, if_info->name) == 0) {
- return if_info;
- }
+ if(strcmp(if_name, if_info->name) == 0) {
+ return if_info;
}
+ }
- return NULL;
+ return NULL;
}
char *
build_capture_combo_name(GList *if_list, gchar *if_name)
{
- gchar *descr;
- char *if_string;
- if_info_t *if_info;
-
-
- /* Do we have a user-supplied description? */
- descr = capture_dev_user_descr_find(if_name);
- if (descr != NULL) {
- /* Yes, we have a user-supplied description; use it. */
- if_string = g_strdup_printf("%s: %s", descr, if_name);
- g_free(descr);
- } else {
- /* No, we don't have a user-supplied description; did we get
- one from the OS or libpcap? */
- if_info = search_info(if_list, if_name);
- if (if_info && if_info->description != NULL) {
- /* Yes - use it. */
- if_string = g_strdup_printf("%s: %s", if_info->description,
- if_info->name);
- } else {
- /* No. */
- if_string = g_strdup(if_name);
- }
- }
-
- return if_string;
+ gchar *descr;
+ char *if_string;
+ if_info_t *if_info;
+
+ /* Do we have a user-supplied description? */
+ descr = capture_dev_user_descr_find(if_name);
+ if (descr != NULL) {
+ /* Yes, we have a user-supplied description; use it. */
+ if_string = g_strdup_printf("%s: %s", descr, if_name);
+ g_free(descr);
+ } else {
+ /* No, we don't have a user-supplied description; did we get
+ one from the OS or libpcap? */
+ if_info = search_info(if_list, if_name);
+ if (if_info != NULL && if_info->vendor_description != NULL) {
+ /* Yes - use it. */
+ if_string = g_strdup_printf("%s: %s", if_info->vendor_description,
+ if_info->name);
+ } else {
+ /* No. */
+ if_string = g_strdup(if_name);
+ }
+ }
+
+ return if_string;
}
if (if_list != NULL) {
/* Scan through the list and build a list of strings to display. */
for (if_entry = if_list; if_entry != NULL;
- if_entry = g_list_next(if_entry)) {
- if_info = if_entry->data;
+ if_entry = g_list_next(if_entry)) {
+ if_info = (if_info_t *)if_entry->data;
/* Is this interface hidden and, if so, should we include it
anyway? */
- if (prefs.capture_devices_hide == NULL ||
- strstr(prefs.capture_devices_hide, if_info->name) == NULL ||
- !do_hide) {
- /* It's not hidden, or it is but we should include it in the list. */
-
- /* Do we have a user-supplied description? */
- descr = capture_dev_user_descr_find(if_info->name);
- if (descr != NULL) {
- /* Yes, we have a user-supplied description; use it. */
- if_string = g_strdup_printf("%s: %s", descr, if_info->name);
- g_free(descr);
- } else {
- /* No, we don't have a user-supplied description; did we get
- one from the OS or libpcap? */
- if (if_info->description != NULL) {
- /* Yes - use it. */
- if_string = g_strdup_printf("%s: %s", if_info->description,
- if_info->name);
- } else {
- /* No. */
- if_string = g_strdup(if_info->name);
- }
- }
- combo_list = g_list_append(combo_list, if_string);
+ if (!prefs_is_capture_device_hidden(if_info->name) || !do_hide) {
+ /* It's not hidden, or it is but we should include it in the list. */
+
+ /* Do we have a user-supplied description? */
+ descr = capture_dev_user_descr_find(if_info->name);
+ if (descr != NULL) {
+ /* Yes, we have a user-supplied description; use it. */
+ if_string = g_strdup_printf("%s: %s", descr, if_info->name);
+ g_free(descr);
+ } else {
+ /* No, we don't have a user-supplied description; did we get
+ one from the OS or libpcap? */
+ if (if_info->vendor_description != NULL) {
+ /* Yes - use it. */
+ if_string = g_strdup_printf("%s: %s",
+ if_info->vendor_description,
+ if_info->name);
+ } else {
+ /* No. */
+ if_string = g_strdup(if_info->name);
+ }
+ }
+ combo_list = g_list_append(combo_list, if_string);
}
- }
+ }/*for*/
}
return combo_list;
}
* it'll be followed by a blank if it separates the description
* and the interface name. (We don't wire in "rpcap", in case we
* support other protocols in the same syntax.)
+ * Unfortunately, another colon can be used in "rpcap://host:port/"
+ * before port. Check if colon is followed by digit.
*/
- if (strncmp(if_name, "://", 3) != 0) {
+ if ((strncmp(if_name, "://", 3) != 0) && !isdigit(if_name[1])) {
/*
- * OK, we've found a colon not followed by "//". Skip blanks
- * following it.
+ * OK, we've found a colon followed neither by "//" nor by digit.
+ * Skip blanks following it.
*/
if_name++;
while (*if_name == ' ')
return if_name;
}
+/* Return interface_opts->descr (after setting it if it is not set)
+ * This is necessary because capture_opts.c can't set descr (at least
+ * not without adding significant dependencies there).
+ */
+const char *
+get_iface_description_for_interface(capture_options *capture_opts, guint i)
+{
+ interface_options interface_opts;
+
+ if (i < capture_opts->ifaces->len) {
+ interface_opts = g_array_index(capture_opts->ifaces, interface_options, i);
+ if (!interface_opts.descr && interface_opts.name) {
+ interface_opts.descr = get_interface_descriptive_name(interface_opts.name);
+ capture_opts->ifaces = g_array_remove_index(capture_opts->ifaces, i);
+ g_array_insert_val(capture_opts->ifaces, i, interface_opts);
+ }
+ return (interface_opts.descr);
+ } else {
+ return (NULL);
+ }
+}
+
#endif /* HAVE_LIBPCAP */
git.samba.org / metze / wireshark / wip.git / blobdiff