libdnet stripped and integrated, ARP ping scan starting to work pretty well

2025-12-21 06:59:01 +00:00 · 2005-04-30 05:12:29 +00:00
parent 3922128b12
commit 4d2beed7c3
106 changed files with 65969 additions and 23 deletions
--- a/libdnet-stripped/src/arp-win32.c
+++ b/libdnet-stripped/src/arp-win32.c
@@ -0,0 +1,141 @@
+/*
+ * arp-win32.c
+ *
+ * Copyright (c) 2002 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: arp-win32.c,v 1.12 2005/01/23 07:36:54 dugsong Exp $
+ */
+
+#include "config.h"
+
+#include <ws2tcpip.h>
+#include <iphlpapi.h>
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "dnet.h"
+
+struct arp_handle {
+	MIB_IPNETTABLE *iptable;
+};
+
+arp_t *
+arp_open(void)
+{
+	return (calloc(1, sizeof(arp_t)));
+}
+
+int
+arp_add(arp_t *arp, const struct arp_entry *entry)
+{
+	MIB_IPFORWARDROW ipfrow;
+	MIB_IPNETROW iprow;
+	
+	if (GetBestRoute(entry->arp_pa.addr_ip,
+	    IP_ADDR_ANY, &ipfrow) != NO_ERROR)
+		return (-1);
+
+	iprow.dwIndex = ipfrow.dwForwardIfIndex;
+	iprow.dwPhysAddrLen = ETH_ADDR_LEN;
+	memcpy(iprow.bPhysAddr, &entry->arp_ha.addr_eth, ETH_ADDR_LEN);
+	iprow.dwAddr = entry->arp_pa.addr_ip;
+	iprow.dwType = 4;	/* XXX - static */
+
+	if (CreateIpNetEntry(&iprow) != NO_ERROR)
+		return (-1);
+
+	return (0);
+}
+
+int
+arp_delete(arp_t *arp, const struct arp_entry *entry)
+{
+	MIB_IPFORWARDROW ipfrow;
+	MIB_IPNETROW iprow;
+
+	if (GetBestRoute(entry->arp_pa.addr_ip,
+	    IP_ADDR_ANY, &ipfrow) != NO_ERROR)
+		return (-1);
+
+	memset(&iprow, 0, sizeof(iprow));
+	iprow.dwIndex = ipfrow.dwForwardIfIndex;
+	iprow.dwAddr = entry->arp_pa.addr_ip;
+
+	if (DeleteIpNetEntry(&iprow) != NO_ERROR) {
+		errno = ENXIO;
+		return (-1);
+	}
+	return (0);
+}
+
+static int
+_arp_get_entry(const struct arp_entry *entry, void *arg)
+{
+	struct arp_entry *e = (struct arp_entry *)arg;
+	
+	if (addr_cmp(&entry->arp_pa, &e->arp_pa) == 0) {
+		memcpy(&e->arp_ha, &entry->arp_ha, sizeof(e->arp_ha));
+		return (1);
+	}
+	return (0);
+}
+
+int
+arp_get(arp_t *arp, struct arp_entry *entry)
+{
+	if (arp_loop(arp, _arp_get_entry, entry) != 1) {
+		errno = ENXIO;
+		SetLastError(ERROR_NO_DATA);
+		return (-1);
+	}
+	return (0);
+}
+
+int
+arp_loop(arp_t *arp, arp_handler callback, void *arg)
+{
+	struct arp_entry entry;
+	ULONG len;
+	int i, ret;
+
+	for (len = sizeof(arp->iptable[0]); ; ) {
+		if (arp->iptable)
+			free(arp->iptable);
+		arp->iptable = malloc(len);
+		ret = GetIpNetTable(arp->iptable, &len, FALSE);
+		if (ret == NO_ERROR)
+			break;
+		else if (ret != ERROR_INSUFFICIENT_BUFFER)
+			return (-1);
+	}
+	entry.arp_pa.addr_type = ADDR_TYPE_IP;
+	entry.arp_pa.addr_bits = IP_ADDR_BITS;
+	
+	entry.arp_ha.addr_type = ADDR_TYPE_ETH;
+	entry.arp_ha.addr_bits = ETH_ADDR_BITS;
+	
+	for (i = 0; i < (int)arp->iptable->dwNumEntries; i++) {
+		if (arp->iptable->table[i].dwPhysAddrLen != ETH_ADDR_LEN)
+			continue;
+		entry.arp_pa.addr_ip = arp->iptable->table[i].dwAddr;
+		memcpy(&entry.arp_ha.addr_eth,
+		    arp->iptable->table[i].bPhysAddr, ETH_ADDR_LEN);
+		
+		if ((ret = (*callback)(&entry, arg)) != 0)
+			return (ret);
+	}
+	return (0);
+}
+
+arp_t *
+arp_close(arp_t *arp)
+{
+	if (arp != NULL) {
+		if (arp->iptable != NULL)
+			free(arp->iptable);
+		free(arp);
+	}
+	return (NULL);
+}