1 files changed, 118 insertions, 0 deletions
diff --git a/libdnet-stripped/src/eth-linux.c b/libdnet-stripped/src/eth-linux.c
new file mode 100644
index 0000000..9b10840
--- /dev/null
+++ b/libdnet-stripped/src/eth-linux.c
@@ -0,0 +1,118 @@
+/*
+ * eth-linux.c
+ *
+ * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: eth-linux.c 547 2005-01-25 21:30:40Z dugsong $
+ */
+
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+
+#include <net/if.h>
+#include <features.h>
+#if __GLIBC__ >= 2 && __GLIBC_MINOR >= 1
+#include <netpacket/packet.h>
+#include <net/ethernet.h>
+#else
+#include <asm/types.h>
+#include <linux/if_packet.h>
+#include <linux/if_ether.h>
+#endif /* __GLIBC__ */
+#include <netinet/in.h>
+
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "dnet.h"
+
+struct eth_handle {
+	int			fd;
+	struct ifreq		ifr;
+	struct sockaddr_ll	sll;
+};
+
+eth_t *
+eth_open(const char *device)
+{
+	eth_t *e;
+	int n;
+	
+	if ((e = calloc(1, sizeof(*e))) != NULL) {
+		if ((e->fd = socket(PF_PACKET, SOCK_RAW,
+			 htons(ETH_P_ALL))) < 0)
+			return (eth_close(e));
+#ifdef SO_BROADCAST
+		n = 1;
+		if (setsockopt(e->fd, SOL_SOCKET, SO_BROADCAST, &n,
+			sizeof(n)) < 0)
+			return (eth_close(e));
+#endif
+		strlcpy(e->ifr.ifr_name, device, sizeof(e->ifr.ifr_name));
+		
+		if (ioctl(e->fd, SIOCGIFINDEX, &e->ifr) < 0)
+			return (eth_close(e));
+		
+		e->sll.sll_family = AF_PACKET;
+		e->sll.sll_ifindex = e->ifr.ifr_ifindex;
+	}
+	return (e);
+}
+
+ssize_t
+eth_send(eth_t *e, const void *buf, size_t len)
+{
+	struct eth_hdr *eth = (struct eth_hdr *)buf;
+	
+	e->sll.sll_protocol = eth->eth_type;
+
+	return (sendto(e->fd, buf, len, 0, (struct sockaddr *)&e->sll,
+	    sizeof(e->sll)));
+}
+
+eth_t *
+eth_close(eth_t *e)
+{
+	if (e != NULL) {
+		if (e->fd >= 0)
+			close(e->fd);
+		free(e);
+	}
+	return (NULL);
+}
+
+int
+eth_get(eth_t *e, eth_addr_t *ea)
+{
+	struct addr ha;
+	
+	if (ioctl(e->fd, SIOCGIFHWADDR, &e->ifr) < 0)
+		return (-1);
+	
+	if (addr_ston(&e->ifr.ifr_hwaddr, &ha) < 0)
+		return (-1);
+
+	memcpy(ea, &ha.addr_eth, sizeof(*ea));
+	return (0);
+}
+
+int
+eth_set(eth_t *e, const eth_addr_t *ea)
+{
+	struct addr ha;
+
+	ha.addr_type = ADDR_TYPE_ETH;
+	ha.addr_bits = ETH_ADDR_BITS;
+	memcpy(&ha.addr_eth, ea, ETH_ADDR_LEN);
+
+	addr_ntos(&ha, &e->ifr.ifr_hwaddr);
+
+	return (ioctl(e->fd, SIOCSIFHWADDR, &e->ifr));
+}