X-Git-Url: http://www.project-moonshot.org/gitweb/?a=blobdiff_plain;f=libeap%2Fsrc%2Fdrivers%2Flinux_ioctl.c;fp=libeap%2Fsrc%2Fdrivers%2Flinux_ioctl.c;h=e21147af1bcd6f0e7d0fe8e890b09f86b91f6db1;hb=88e34eecb5769da6526361b35df00fdbe823eac5;hp=0000000000000000000000000000000000000000;hpb=2394142e4bf89e0a9e2a0091ac16bd6442e3d4c7;p=mech_eap.git

diff --git a/libeap/src/drivers/linux_ioctl.c b/libeap/src/drivers/linux_ioctl.c
new file mode 100644
index 0000000..e21147a
--- /dev/null
+++ b/libeap/src/drivers/linux_ioctl.c
@@ -0,0 +1,244 @@
+/*
+ * Linux ioctl helper functions for driver wrappers
+ * Copyright (c) 2002-2010, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <net/if_arp.h>
+
+#include "utils/common.h"
+#include "linux_ioctl.h"
+
+
+int linux_set_iface_flags(int sock, const char *ifname, int dev_up)
+{
+	struct ifreq ifr;
+	int ret;
+
+	if (sock < 0)
+		return -1;
+
+	os_memset(&ifr, 0, sizeof(ifr));
+	os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
+
+	if (ioctl(sock, SIOCGIFFLAGS, &ifr) != 0) {
+		ret = errno ? -errno : -999;
+		wpa_printf(MSG_ERROR, "Could not read interface %s flags: %s",
+			   ifname, strerror(errno));
+		return ret;
+	}
+
+	if (dev_up) {
+		if (ifr.ifr_flags & IFF_UP)
+			return 0;
+		ifr.ifr_flags |= IFF_UP;
+	} else {
+		if (!(ifr.ifr_flags & IFF_UP))
+			return 0;
+		ifr.ifr_flags &= ~IFF_UP;
+	}
+
+	if (ioctl(sock, SIOCSIFFLAGS, &ifr) != 0) {
+		ret = errno ? -errno : -999;
+		wpa_printf(MSG_ERROR, "Could not set interface %s flags (%s): "
+			   "%s",
+			   ifname, dev_up ? "UP" : "DOWN", strerror(errno));
+		return ret;
+	}
+
+	return 0;
+}
+
+
+int linux_iface_up(int sock, const char *ifname)
+{
+	struct ifreq ifr;
+	int ret;
+
+	if (sock < 0)
+		return -1;
+
+	os_memset(&ifr, 0, sizeof(ifr));
+	os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
+
+	if (ioctl(sock, SIOCGIFFLAGS, &ifr) != 0) {
+		ret = errno ? -errno : -999;
+		wpa_printf(MSG_ERROR, "Could not read interface %s flags: %s",
+			   ifname, strerror(errno));
+		return ret;
+	}
+
+	return !!(ifr.ifr_flags & IFF_UP);
+}
+
+
+int linux_get_ifhwaddr(int sock, const char *ifname, u8 *addr)
+{
+	struct ifreq ifr;
+
+	os_memset(&ifr, 0, sizeof(ifr));
+	os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
+	if (ioctl(sock, SIOCGIFHWADDR, &ifr)) {
+		wpa_printf(MSG_ERROR, "Could not get interface %s hwaddr: %s",
+			   ifname, strerror(errno));
+		return -1;
+	}
+
+	if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
+		wpa_printf(MSG_ERROR, "%s: Invalid HW-addr family 0x%04x",
+			   ifname, ifr.ifr_hwaddr.sa_family);
+		return -1;
+	}
+	os_memcpy(addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
+
+	return 0;
+}
+
+
+int linux_set_ifhwaddr(int sock, const char *ifname, const u8 *addr)
+{
+	struct ifreq ifr;
+
+	os_memset(&ifr, 0, sizeof(ifr));
+	os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
+	os_memcpy(ifr.ifr_hwaddr.sa_data, addr, ETH_ALEN);
+	ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;
+
+	if (ioctl(sock, SIOCSIFHWADDR, &ifr)) {
+		wpa_printf(MSG_DEBUG, "Could not set interface %s hwaddr: %s",
+			   ifname, strerror(errno));
+		return -1;
+	}
+
+	return 0;
+}
+
+
+#ifndef SIOCBRADDBR
+#define SIOCBRADDBR 0x89a0
+#endif
+#ifndef SIOCBRDELBR
+#define SIOCBRDELBR 0x89a1
+#endif
+#ifndef SIOCBRADDIF
+#define SIOCBRADDIF 0x89a2
+#endif
+#ifndef SIOCBRDELIF
+#define SIOCBRDELIF 0x89a3
+#endif
+
+
+int linux_br_add(int sock, const char *brname)
+{
+	if (ioctl(sock, SIOCBRADDBR, brname) < 0) {
+		wpa_printf(MSG_DEBUG, "Could not add bridge %s: %s",
+			   brname, strerror(errno));
+		return -1;
+	}
+
+	return 0;
+}
+
+
+int linux_br_del(int sock, const char *brname)
+{
+	if (ioctl(sock, SIOCBRDELBR, brname) < 0) {
+		wpa_printf(MSG_DEBUG, "Could not remove bridge %s: %s",
+			   brname, strerror(errno));
+		return -1;
+	}
+
+	return 0;
+}
+
+
+int linux_br_add_if(int sock, const char *brname, const char *ifname)
+{
+	struct ifreq ifr;
+	int ifindex;
+
+	ifindex = if_nametoindex(ifname);
+	if (ifindex == 0)
+		return -1;
+
+	os_memset(&ifr, 0, sizeof(ifr));
+	os_strlcpy(ifr.ifr_name, brname, IFNAMSIZ);
+	ifr.ifr_ifindex = ifindex;
+	if (ioctl(sock, SIOCBRADDIF, &ifr) < 0) {
+		wpa_printf(MSG_DEBUG, "Could not add interface %s into bridge "
+			   "%s: %s", ifname, brname, strerror(errno));
+		return -1;
+	}
+
+	return 0;
+}
+
+
+int linux_br_del_if(int sock, const char *brname, const char *ifname)
+{
+	struct ifreq ifr;
+	int ifindex;
+
+	ifindex = if_nametoindex(ifname);
+	if (ifindex == 0)
+		return -1;
+
+	os_memset(&ifr, 0, sizeof(ifr));
+	os_strlcpy(ifr.ifr_name, brname, IFNAMSIZ);
+	ifr.ifr_ifindex = ifindex;
+	if (ioctl(sock, SIOCBRDELIF, &ifr) < 0) {
+		wpa_printf(MSG_DEBUG, "Could not remove interface %s from "
+			   "bridge %s: %s", ifname, brname, strerror(errno));
+		return -1;
+	}
+
+	return 0;
+}
+
+
+int linux_br_get(char *brname, const char *ifname)
+{
+	char path[128], brlink[128], *pos;
+	ssize_t res;
+
+	os_snprintf(path, sizeof(path), "/sys/class/net/%s/brport/bridge",
+		    ifname);
+	res = readlink(path, brlink, sizeof(brlink));
+	if (res < 0 || (size_t) res >= sizeof(brlink))
+		return -1;
+	brlink[res] = '\0';
+	pos = os_strrchr(brlink, '/');
+	if (pos == NULL)
+		return -1;
+	pos++;
+	os_strlcpy(brname, pos, IFNAMSIZ);
+	return 0;
+}
+
+
+int linux_master_get(char *master_ifname, const char *ifname)
+{
+	char buf[128], masterlink[128], *pos;
+	ssize_t res;
+
+	/* check whether there is a master */
+	os_snprintf(buf, sizeof(buf), "/sys/class/net/%s/master", ifname);
+
+	res = readlink(buf, masterlink, sizeof(masterlink));
+	if (res < 0 || (size_t) res >= sizeof(masterlink))
+		return -1;
+
+	masterlink[res] = '\0';
+
+	pos = os_strrchr(masterlink, '/');
+	if (pos == NULL)
+		return -1;
+	pos++;
+	os_strlcpy(master_ifname, pos, IFNAMSIZ);
+	return 0;
+}