#include "capture-pcap-util.h"
#include "capture-pcap-util-int.h"
+#include "wsutil/file_util.h"
+
#ifndef _WIN32
#include <netinet/in.h>
#endif
#ifdef _WIN32
#include "capture_win_ifnames.h" /* windows friendly interface names */
+#endif
+
+/*
+ * Given an interface name, find the "friendly name" and interface
+ * type for the interface.
+ */
+
+#if defined(__APPLE__)
+
+#include <CoreFoundation/CoreFoundation.h>
+#include <SystemConfiguration/SystemConfiguration.h>
+
+#include "cfutils.h"
+
+/*
+ * On OS X, we get the "friendly name" and interface type for the interface
+ * from the System Configuration framework.
+ *
+ * To find the System Configuration framework information for the
+ * interface, we get all the interfaces that the System Configuration
+ * framework knows about and look for the one with a "BSD name" matching
+ * the interface name.
+ *
+ * If we find it, we use its "localized display name", if it has one, as
+ * the "friendly name".
+ *
+ * As for the interface type:
+ *
+ * Yes, fetching all the network addresses for an interface gets you an
+ * AF_LINK address, of type "struct sockaddr_dl", and, yes, that includes
+ * an SNMP MIB-II ifType value.
+ *
+ * However, it's IFT_ETHER, i.e. Ethernet, for AirPort interfaces,
+ * not IFT_IEEE80211 (which isn't defined in OS X in any case).
+ *
+ * Perhaps some other BSD-flavored OSes won't make this mistake;
+ * however, FreeBSD 7.0 and OpenBSD 4.2, at least, appear to have
+ * made the same mistake, at least for my Belkin ZyDAS stick.
+ *
+ * SCNetworkInterfaceGetInterfaceType() will get the interface
+ * type. The interface type is a CFString, and:
+ *
+ * kSCNetworkInterfaceTypeIEEE80211 means IF_WIRELESS;
+ * kSCNetworkInterfaceTypeBluetooth means IF_BLUETOOTH;
+ * kSCNetworkInterfaceTypeModem or
+ * kSCNetworkInterfaceTypePPP or
+ * maybe kSCNetworkInterfaceTypeWWAN means IF_DIALUP
+ */
+static void
+add_unix_interface_ifinfo(if_info_t *if_info, const char *name,
+ const char *description _U_)
+{
+ CFStringRef name_CFString;
+ CFArrayRef interfaces;
+ CFIndex num_interfaces;
+ CFIndex i;
+ SCNetworkInterfaceRef interface;
+ CFStringRef bsdname_CFString;
+ CFStringRef friendly_name_CFString;
+ CFStringRef interface_type_CFString;
+
+ interfaces = SCNetworkInterfaceCopyAll();
+ if (interfaces == NULL) {
+ /*
+ * Couldn't get a list of interfaces.
+ */
+ return;
+ }
+
+ name_CFString = CFStringCreateWithCString(kCFAllocatorDefault,
+ name, kCFStringEncodingUTF8);
+ if (name_CFString == NULL) {
+ /*
+ * Couldn't convert the interface name to a CFString.
+ */
+ CFRelease(interfaces);
+ return;
+ }
+
+ num_interfaces = CFArrayGetCount(interfaces);
+ for (i = 0; i < num_interfaces; i++) {
+ interface = (SCNetworkInterfaceRef)CFArrayGetValueAtIndex(interfaces, i);
+ bsdname_CFString = SCNetworkInterfaceGetBSDName(interface);
+ if (bsdname_CFString == NULL) {
+ /*
+ * This interface has no BSD name, so it's not
+ * a regular network interface.
+ */
+ continue;
+ }
+ if (CFStringCompare(name_CFString, bsdname_CFString, 0) == 0) {
+ /*
+ * This is the interface.
+ * First, get the friendly name.
+ */
+ friendly_name_CFString = SCNetworkInterfaceGetLocalizedDisplayName(interface);
+ if (friendly_name_CFString != NULL)
+ if_info->friendly_name = CFString_to_C_string(friendly_name_CFString);
+
+ /*
+ * Now get the interface type.
+ */
+ interface_type_CFString = SCNetworkInterfaceGetInterfaceType(interface);
+ if (CFStringCompare(interface_type_CFString,
+ kSCNetworkInterfaceTypeIEEE80211, 0) == kCFCompareEqualTo)
+ if_info->type = IF_WIRELESS;
+ else if (CFStringCompare(interface_type_CFString,
+ kSCNetworkInterfaceTypeBluetooth, 0) == kCFCompareEqualTo)
+ if_info->type = IF_BLUETOOTH;
+ else if (CFStringCompare(interface_type_CFString,
+ kSCNetworkInterfaceTypeModem, 0) == kCFCompareEqualTo)
+ if_info->type = IF_DIALUP;
+ else if (CFStringCompare(interface_type_CFString,
+ kSCNetworkInterfaceTypePPP, 0) == kCFCompareEqualTo)
+ if_info->type = IF_DIALUP;
+ else if (CFStringCompare(interface_type_CFString,
+ kSCNetworkInterfaceTypeWWAN, 0) == kCFCompareEqualTo)
+ if_info->type = IF_DIALUP;
+ else
+ if_info->type = IF_WIRED;
+ break;
+ }
+ }
+
+ CFRelease(interfaces);
+}
+#elif defined(__linux__)
+/*
+ * Linux doesn't offer any form of "friendly name", but you can
+ * determine an interface type to some degree.
+ */
+static void
+add_unix_interface_ifinfo(if_info_t *if_info, const char *name,
+ const char *description _U_)
+{
+ char *wireless_path;
+ ws_statb64 statb;
+
+ /*
+ * Look for /sys/class/net/{device}/wireless. If it exists,
+ * it's a wireless interface.
+ */
+ wireless_path = g_strdup_printf("/sys/class/net/%s/wireless", name);
+ if (wireless_path != NULL) {
+ if (ws_stat64(wireless_path, &statb) == 0)
+ if_info->type = IF_WIRELESS;
+ g_free(wireless_path);
+ }
+ if (if_info->type == IF_WIRED) {
+ /*
+ * We still don't know what it is. Check for
+ * Bluetooth and USB devices.
+ */
+ if (strstr(name, "bluetooth") != NULL) {
+ /*
+ * XXX - this is for raw Bluetooth capture; what
+ * about IP-over-Bluetooth devices?
+ */
+ if_info->type = IF_BLUETOOTH;
+ } else if (strstr(name, "usbmon") != NULL)
+ if_info->type = IF_USB;
+ }
+}
#else
-#include "capture_unix_ifnames.h"
+/*
+ * On other UN*Xes, if there is a description, it's a friendly
+ * name, and there is no vendor description. ("Other UN*Xes"
+ * currently means "FreeBSD and OpenBSD".)
+ */
+void
+add_unix_interface_ifinfo(if_info_t *if_info, const char *name _U_,
+ const char *description)
+{
+ if_info->friendly_name = g_strdup(description);
+}
#endif
if_info_t *
if_info = (if_info_t *)g_malloc(sizeof (if_info_t));
if_info->name = g_strdup(name);
+ if_info->friendly_name = NULL; /* default - unknown */
+ if_info->vendor_description = NULL;
+ if_info->type = IF_WIRED; /* default */
#ifdef _WIN32
+ /*
+ * Get the interface type.
+ *
+ * Much digging failed to reveal any obvious way to get something
+ * such as the SNMP MIB-II ifType value for an interface:
+ *
+ * http://www.iana.org/assignments/ianaiftype-mib
+ *
+ * by making some NDIS request. And even if there were such
+ * a way, there's no guarantee that the ifType reflects an
+ * interface type that a user would view as correct (for
+ * example, some systems report Wi-Fi interfaces as
+ * Ethernet interfaces).
+ *
+ * So we look for keywords in the vendor's interface
+ * description.
+ */
+ if (description && (strstr(description, "generic dialup") != NULL ||
+ strstr(description, "PPP/SLIP") != NULL)) {
+ if_info->type = IF_DIALUP;
+ } else if (description && (strstr(description, "Wireless") != NULL ||
+ strstr(description,"802.11") != NULL)) {
+ if_info->type = IF_WIRELESS;
+ } else if (description && strstr(description, "AirPcap") != NULL ||
+ strstr(name, "airpcap") != NULL) {
+ if_info->type = IF_AIRPCAP;
+ } else if (description && strstr(description, "Bluetooth") != NULL ) {
+ if_info->type = IF_BLUETOOTH;
+ } else if (description && strstr(description, "VMware") != NULL) {
+ /*
+ * Bridge, NAT, or host-only interface on a VMware host.
+ *
+ * XXX - what about guest interfaces?
+ */
+ if_info->type = IF_VIRTUAL;
+ }
+
/*
* On Windows, the "description" is a vendor description,
* and the friendly name isn't returned by WinPcap.
/*
* On UN*X, if there is a description, it's a friendly
* name, and there is no vendor description.
- * If there's no description, fetch a friendly name
- * if we can; if that fails, then, for a loopback
- * interface, give it the friendly name "Loopback".
+ *
+ * Try the platform's way of getting a friendly name and
+ * interface type first.
+ *
+ * If that fails, then, for a loopback interface, give it the
+ * friendly name "Loopback" and, for VMware interfaces,
+ * give them the type IF_VIRTUAL.
*/
- if_info->friendly_name = g_strdup(description);
+ add_unix_interface_ifinfo(if_info, name, description);
+ if (if_info->type == IF_WIRED) {
+ /*
+ * This is the default interface type.
+ *
+ * Bridge, NAT, or host-only interfaces on VMWare hosts
+ * have the name vmnet[0-9]+. Guests might use a native
+ * (LANCE or E1000) driver or the vmxnet driver. Check
+ * the name.
+ */
+ if (g_ascii_strncasecmp(name, "vmnet", 5) == 0)
+ if_info->type = IF_VIRTUAL;
+ else if (g_ascii_strncasecmp(name, "vmxnet", 6) == 0)
+ if_info->type = IF_VIRTUAL;
+ }
if (if_info->friendly_name == NULL) {
- if_info->friendly_name = get_unix_interface_friendly_name(name);
- if (if_info->friendly_name == NULL) {
- /*
- * If this is a loopback interface, give it a
- * "friendly name" of "Loopback".
- */
- if (loopback)
- if_info->friendly_name = g_strdup("Loopback");
- }
+ /*
+ * We couldn't get interface information using platform-
+ * dependent calls.
+ *
+ * If this is a loopback interface, give it a
+ * "friendly name" of "Loopback".
+ */
+ if (loopback)
+ if_info->friendly_name = g_strdup("Loopback");
}
if_info->vendor_description = NULL;
#endif
git.samba.org / metze / wireshark / wip.git / blobdiff