Move utility routines for capturing into a libcaputils static library.

Some of those routines are used only in dumpcap; others are used in
TShark and Wireshark as well.

Change-Id: I9d92483f2fcff57a7d8b6bf6bdf2870505d19fb7
Reviewed-on: https://code.wireshark.org/review/2841
Reviewed-by: Guy Harris <guy@alum.mit.edu>

1 files changed, 0 insertions, 639 deletions

diff --git a/capture-pcap-util.c b/capture-pcap-util.c
deleted file mode 100644
index 7f9a5d2d1a..0000000000
--- a/capture-pcap-util.c
+++ /dev/null
@@ -1,639 +0,0 @@
-/* capture-pcap-util.c
- * Utility routines for packet capture
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-
-#ifdef HAVE_LIBPCAP
-
-#include <glib.h>
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <limits.h>
-#include <string.h>
-
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-
-#include <wtap.h>
-#include <libpcap.h>
-
-#include <capchild/capture_ifinfo.h>
-#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 <wsutil/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);
-	CFRelease(name_CFString);
-}
-#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
-/*
- * 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_new(const char *name, const char *description, gboolean loopback)
-{
-	if_info_t *if_info;
-#ifdef _WIN32
-	const char *guid_text;
-	GUID guid;
-#endif
-
-	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.
-	 * Fetch it ourselves.
-	 */
-
-	/*
-	 * Skip over the "\Device\NPF_" prefix in the device name,
-	 * if present.
-	 */
-	if (strncmp("\\Device\\NPF_", name, 12) == 0)
-		guid_text = name + 12;
-	else
-		guid_text = name;
-
-	/* Now try to parse what remains as a GUID. */
-	if (parse_as_guid(guid_text, &guid)) {
-		/*
-		 * Success. Try to get a friendly name using the GUID.
-		 * As this is a regular interface, the description is a
-		 * vendor description.
-		 */
-		if_info->friendly_name = get_interface_friendly_name_from_device_guid(&guid);
-		if_info->vendor_description = g_strdup(description);
-	} else {
-		/*
-		 * This is probably not a regular interface; we only
-		 * support NT 5 (W2K) and later, so all regular interfaces
-		 * should have GUIDs at the end of the name.  Therefore,
-		 * the description, if supplied, is a friendly name
-		 * provided by WinPcap, and there is no vendor
-		 * description.
-		 */
-		if_info->friendly_name = g_strdup(description);
-		if_info->vendor_description = NULL;
-	}
-#else
-	/*
-	 * On UN*X, if there is a description, it's a friendly
-	 * name, and there is no vendor description.
-	 *
-	 * 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.
-	 */
-	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) {
-		/*
-		 * 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
-	if_info->loopback = loopback;
-	if_info->addrs = NULL;
-	return if_info;
-}
-
-void
-if_info_add_address(if_info_t *if_info, struct sockaddr *addr)
-{
-	if_addr_t *if_addr;
-	struct sockaddr_in *ai;
-#ifdef INET6
-	struct sockaddr_in6 *ai6;
-#endif
-
-	switch (addr->sa_family) {
-
-	case AF_INET:
-		ai = (struct sockaddr_in *)(void *)addr;
-		if_addr = (if_addr_t *)g_malloc(sizeof(*if_addr));
-		if_addr->ifat_type = IF_AT_IPv4;
-		if_addr->addr.ip4_addr =
-		    *((guint32 *)&(ai->sin_addr.s_addr));
-		if_info->addrs = g_slist_append(if_info->addrs, if_addr);
-		break;
-
-#ifdef INET6
-	case AF_INET6:
-		ai6 = (struct sockaddr_in6 *)(void *)addr;
-		if_addr = (if_addr_t *)g_malloc(sizeof(*if_addr));
-		if_addr->ifat_type = IF_AT_IPv6;
-		memcpy((void *)&if_addr->addr.ip6_addr,
-		    (void *)&ai6->sin6_addr.s6_addr,
-		    sizeof if_addr->addr.ip6_addr);
-		if_info->addrs = g_slist_append(if_info->addrs, if_addr);
-		break;
-#endif
-	}
-}
-
-#ifdef HAVE_PCAP_FINDALLDEVS
-/*
- * Get all IP address information for the given interface.
- */
-static void
-if_info_ip(if_info_t *if_info, pcap_if_t *d)
-{
-	pcap_addr_t *a;
-
-	/* All addresses */
-	for (a = d->addresses; a != NULL; a = a->next) {
-		if (a->addr != NULL)
-			if_info_add_address(if_info, a->addr);
-	}
-}
-
-#ifdef HAVE_PCAP_REMOTE
-GList *
-get_interface_list_findalldevs_ex(const char *source,
-                                  struct pcap_rmtauth *auth,
-                                  int *err, char **err_str)
-{
-	GList  *il = NULL;
-	pcap_if_t *alldevs, *dev;
-	if_info_t *if_info;
-	char errbuf[PCAP_ERRBUF_SIZE];
-
-        if (pcap_findalldevs_ex((char *)source, auth, &alldevs, errbuf) == -1) {
-		*err = CANT_GET_INTERFACE_LIST;
-		if (err_str != NULL)
-			*err_str = cant_get_if_list_error_message(errbuf);
-		return NULL;
-	}
-
-	if (alldevs == NULL) {
-		/*
-		 * No interfaces found.
-		 */
-		*err = NO_INTERFACES_FOUND;
-		if (err_str != NULL)
-			*err_str = NULL;
-		return NULL;
-	}
-
-	for (dev = alldevs; dev != NULL; dev = dev->next) {
-		if_info = if_info_new(dev->name, dev->description,
-		    (dev->flags & PCAP_IF_LOOPBACK) ? TRUE : FALSE);
-		il = g_list_append(il, if_info);
-		if_info_ip(if_info, dev);
-	}
-	pcap_freealldevs(alldevs);
-
-	return il;
-}
-#endif
-
-GList *
-get_interface_list_findalldevs(int *err, char **err_str)
-{
-	GList  *il = NULL;
-	pcap_if_t *alldevs, *dev;
-	if_info_t *if_info;
-	char errbuf[PCAP_ERRBUF_SIZE];
-
-	if (pcap_findalldevs(&alldevs, errbuf) == -1) {
-		*err = CANT_GET_INTERFACE_LIST;
-		if (err_str != NULL)
-			*err_str = cant_get_if_list_error_message(errbuf);
-		return NULL;
-	}
-
-	if (alldevs == NULL) {
-		/*
-		 * No interfaces found.
-		 */
-		*err = NO_INTERFACES_FOUND;
-		if (err_str != NULL)
-			*err_str = NULL;
-		return NULL;
-	}
-
-	for (dev = alldevs; dev != NULL; dev = dev->next) {
-		if_info = if_info_new(dev->name, dev->description,
-		    (dev->flags & PCAP_IF_LOOPBACK) ? TRUE : FALSE);
-		il = g_list_append(il, if_info);
-		if_info_ip(if_info, dev);
-	}
-	pcap_freealldevs(alldevs);
-
-	return il;
-}
-#endif /* HAVE_PCAP_FINDALLDEVS */
-
-static void
-free_if_info_addr_cb(gpointer addr, gpointer user_data _U_)
-{
-	g_free(addr);
-}
-
-static void
-free_if_cb(gpointer data, gpointer user_data _U_)
-{
-	if_info_t *if_info = (if_info_t *)data;
-
-	g_free(if_info->name);
-	g_free(if_info->friendly_name);
-	g_free(if_info->vendor_description);
-
-	g_slist_foreach(if_info->addrs, free_if_info_addr_cb, NULL);
-	g_slist_free(if_info->addrs);
-	g_free(if_info);
-}
-
-void
-free_interface_list(GList *if_list)
-{
-	g_list_foreach(if_list, free_if_cb, NULL);
-	g_list_free(if_list);
-}
-
-#if !defined(HAVE_PCAP_DATALINK_NAME_TO_VAL) || !defined(HAVE_PCAP_DATALINK_VAL_TO_NAME) || !defined(HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION)
-struct dlt_choice {
-	const char *name;
-	const char *description;
-	int	dlt;
-};
-
-#define DLT_CHOICE(code, description) { #code, description, code }
-#define DLT_CHOICE_SENTINEL { NULL, NULL, 0 }
-
-static struct dlt_choice dlt_choices[] = {
-	DLT_CHOICE(DLT_NULL, "BSD loopback"),
-	DLT_CHOICE(DLT_EN10MB, "Ethernet"),
-	DLT_CHOICE(DLT_IEEE802, "Token ring"),
-	DLT_CHOICE(DLT_ARCNET, "ARCNET"),
-	DLT_CHOICE(DLT_SLIP, "SLIP"),
-	DLT_CHOICE(DLT_PPP, "PPP"),
-	DLT_CHOICE(DLT_FDDI, "FDDI"),
-	DLT_CHOICE(DLT_ATM_RFC1483, "RFC 1483 IP-over-ATM"),
-	DLT_CHOICE(DLT_RAW, "Raw IP"),
-	DLT_CHOICE(DLT_SLIP_BSDOS, "BSD/OS SLIP"),
-	DLT_CHOICE(DLT_PPP_BSDOS, "BSD/OS PPP"),
-	DLT_CHOICE(DLT_ATM_CLIP, "Linux Classical IP-over-ATM"),
-	DLT_CHOICE(DLT_PPP_SERIAL, "PPP over serial"),
-	DLT_CHOICE(DLT_PPP_ETHER, "PPPoE"),
-	DLT_CHOICE(DLT_C_HDLC, "Cisco HDLC"),
-	DLT_CHOICE(DLT_IEEE802_11, "802.11"),
-	DLT_CHOICE(DLT_FRELAY, "Frame Relay"),
-	DLT_CHOICE(DLT_LOOP, "OpenBSD loopback"),
-	DLT_CHOICE(DLT_ENC, "OpenBSD encapsulated IP"),
-	DLT_CHOICE(DLT_LINUX_SLL, "Linux cooked"),
-	DLT_CHOICE(DLT_LTALK, "Localtalk"),
-	DLT_CHOICE(DLT_PFLOG, "OpenBSD pflog file"),
-	DLT_CHOICE(DLT_PRISM_HEADER, "802.11 plus Prism header"),
-	DLT_CHOICE(DLT_IP_OVER_FC, "RFC 2625 IP-over-Fibre Channel"),
-	DLT_CHOICE(DLT_SUNATM, "Sun raw ATM"),
-	DLT_CHOICE(DLT_IEEE802_11_RADIO, "802.11 plus BSD radio information header"),
-	DLT_CHOICE(DLT_APPLE_IP_OVER_IEEE1394, "Apple IP-over-IEEE 1394"),
-	DLT_CHOICE(DLT_ARCNET_LINUX, "Linux ARCNET"),
-	DLT_CHOICE(DLT_LINUX_IRDA, "Linux IrDA"),
-	DLT_CHOICE(DLT_IEEE802_11_RADIO_AVS, "802.11 plus AVS radio information header"),
-	DLT_CHOICE_SENTINEL
-};
-
-#if !defined(HAVE_PCAP_DATALINK_NAME_TO_VAL)
-static int
-pcap_datalink_name_to_val(const char *name)
-{
-	int i;
-
-	for (i = 0; dlt_choices[i].name != NULL; i++) {
-		if (g_ascii_strcasecmp(dlt_choices[i].name + sizeof("DLT_") - 1,
-		    name) == 0)
-			return (dlt_choices[i].dlt);
-	}
-	return (-1);
-}
-#endif /* defined(HAVE_PCAP_DATALINK_NAME_TO_VAL) */
-
-#if !defined(HAVE_PCAP_DATALINK_VAL_TO_NAME)
-static const char *
-pcap_datalink_val_to_name(int dlt)
-{
-	int i;
-
-	for (i = 0; dlt_choices[i].name != NULL; i++) {
-		if (dlt_choices[i].dlt == dlt)
-			return (dlt_choices[i].name + sizeof("DLT_") - 1);
-	}
-	return (NULL);
-}
-#endif /* defined(HAVE_PCAP_DATALINK_VAL_TO_NAME) */
-
-#if !defined(HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION)
-const char *
-pcap_datalink_val_to_description(int dlt)
-{
-	int i;
-
-	for (i = 0; dlt_choices[i].name != NULL; i++) {
-		if (dlt_choices[i].dlt == dlt)
-			return (dlt_choices[i].description);
-	}
-	return (NULL);
-}
-#endif /* defined(HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION) */
-
-#endif /* !defined(HAVE_PCAP_DATALINK_VAL_TO_NAME) || !defined(HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION) */
-
-static void
-free_linktype_cb(gpointer data, gpointer user_data _U_)
-{
-	data_link_info_t *linktype_info = (data_link_info_t *)data;
-
-	g_free(linktype_info->name);
-	g_free(linktype_info->description);
-}
-
-void
-free_if_capabilities(if_capabilities_t *caps)
-{
-	g_list_foreach(caps->data_link_types, free_linktype_cb, NULL);
-	g_list_free(caps->data_link_types);
-	g_free(caps);
-}
-
-const char *
-linktype_val_to_name(int dlt)
-{
-    return pcap_datalink_val_to_name(dlt);
-}
-
-int linktype_name_to_val(const char *linktype)
-{
-    return pcap_datalink_name_to_val(linktype);
-}
-
-#endif /* HAVE_LIBPCAP */