From 9683f890944ffb114f5f8214f694e0b339cf5a5a Mon Sep 17 00:00:00 2001
From: Alberto Gonzalez Iniesta <agi@inittab.org>
Date: Thu, 22 Jun 2017 13:16:46 +0200
Subject: New upstream version 2.4.3

---
 src/openvpn/tun.c | 48 ++++++++++++++++++++++++++++++------------------
 1 file changed, 30 insertions(+), 18 deletions(-)

(limited to 'src/openvpn/tun.c')

diff --git a/src/openvpn/tun.c b/src/openvpn/tun.c
index f812844..75a156c 100644
--- a/src/openvpn/tun.c
+++ b/src/openvpn/tun.c
@@ -16,10 +16,9 @@
  *  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 (see the file COPYING included with this
- *  distribution); if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *  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.
  */
 
 /*
@@ -560,7 +559,9 @@ is_tun_p2p(const struct tuntap *tt)
 {
     bool tun = false;
 
-    if (tt->type == DEV_TYPE_TAP || (tt->type == DEV_TYPE_TUN && tt->topology == TOP_SUBNET))
+    if (tt->type == DEV_TYPE_TAP
+          || (tt->type == DEV_TYPE_TUN && tt->topology == TOP_SUBNET)
+          || tt->type == DEV_TYPE_NULL )
     {
         tun = false;
     }
@@ -694,7 +695,8 @@ init_tun(const char *dev,        /* --dev option */
              * make sure they do not clash with our virtual subnet.
              */
 
-            for (curele = local_public; curele; curele = curele->ai_next) {
+            for (curele = local_public; curele; curele = curele->ai_next)
+            {
                 if (curele->ai_family == AF_INET)
                 {
                     check_addr_clash("local",
@@ -705,7 +707,8 @@ init_tun(const char *dev,        /* --dev option */
                 }
             }
 
-            for (curele = remote_public; curele; curele = curele->ai_next) {
+            for (curele = remote_public; curele; curele = curele->ai_next)
+            {
                 if (curele->ai_family == AF_INET)
                 {
                     check_addr_clash("remote",
@@ -1036,7 +1039,8 @@ do_ifconfig(struct tuntap *tt,
         struct buffer out = alloc_buf_gc(64, &gc);
 
         char *top;
-        switch (tt->topology) {
+        switch (tt->topology)
+        {
             case TOP_NET30:
                 top = "net30";
                 break;
@@ -1649,11 +1653,11 @@ write_tun_header(struct tuntap *tt, uint8_t *buf, int len)
     {
         u_int32_t type;
         struct iovec iv[2];
-        struct ip *iph;
+        struct openvpn_iphdr *iph;
 
-        iph = (struct ip *) buf;
+        iph = (struct openvpn_iphdr *) buf;
 
-        if (iph->ip_v == 6)
+        if (OPENVPN_IPH_GET_VER(iph->version_len) == 6)
         {
             type = htonl(AF_INET6);
         }
@@ -1835,12 +1839,14 @@ open_tun(const char *dev, const char *dev_type, const char *dev_node, struct tun
 
     /* Prefer IPv6 DNS servers,
      * Android will use the DNS server in the order we specify*/
-    for (int i = 0; i < tt->options.dns6_len; i++) {
+    for (int i = 0; i < tt->options.dns6_len; i++)
+    {
         management_android_control(management, "DNS6SERVER",
                                    print_in6_addr(tt->options.dns6[i], 0, &gc));
     }
 
-    for (int i = 0; i < tt->options.dns_len; i++) {
+    for (int i = 0; i < tt->options.dns_len; i++)
+    {
         management_android_control(management, "DNSSERVER",
                                    print_in_addr_t(tt->options.dns[i], 0, &gc));
     }
@@ -2254,7 +2260,9 @@ open_tun(const char *dev, const char *dev_type, const char *dev_node, struct tun
     {
         ptr = dev;
         while (*ptr && !isdigit((int) *ptr))
+        {
             ptr++;
+        }
         ppa = atoi(ptr);
     }
 
@@ -3277,7 +3285,10 @@ open_tun(const char *dev, const char *dev_type, const char *dev_node, struct tun
     {
         /* ensure that dev name is "tap+<digits>" *only* */
         p = &dev[3];
-        while (isdigit(*p) ) p++;
+        while (isdigit(*p) )
+        {
+            p++;
+        }
         if (*p != '\0')
         {
             msg( M_FATAL, "TAP device name must be '--dev tapNNNN'" );
@@ -5455,7 +5466,9 @@ write_dhcp_u32_array(struct buffer *buf, const int type, const uint32_t *data, c
         buf_write_u8(buf, type);
         buf_write_u8(buf, size);
         for (i = 0; i < len; ++i)
+        {
             buf_write_u32(buf, data[i]);
+        }
     }
 }
 
@@ -6224,10 +6237,7 @@ close_tun(struct tuntap *tt)
         }
 #endif
 
-        if (tt->options.dhcp_release)
-        {
-            dhcp_release(tt);
-        }
+        dhcp_release(tt);
 
         if (tt->hand != NULL)
         {
@@ -6287,10 +6297,12 @@ ascii2ipset(const char *name)
     int i;
     ASSERT(IPW32_SET_N == SIZE(ipset_names));
     for (i = 0; i < IPW32_SET_N; ++i)
+    {
         if (!strcmp(name, ipset_names[i].short_form))
         {
             return i;
         }
+    }
     return -1;
 }
 
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