Give the tun-interface an IPv4-Address

2 files changed, 65 insertions, 6 deletions

diff --git a/src/vpn/gnunet-helper-vpn.c b/src/vpn/gnunet-helper-vpn.c
index 0307607d8..6a6aaf9dc 100644
--- a/src/vpn/gnunet-helper-vpn.c
+++ b/src/vpn/gnunet-helper-vpn.c
@@ -67,7 +67,7 @@ void term(int sig) {
                 running = 0;
 }
 
-static void set_address(char* dev, char* address, unsigned long prefix_len) { /* {{{ */
+static void set_address6(char* dev, char* address, unsigned long prefix_len) { /* {{{ */
         int fd = socket(AF_INET6, SOCK_DGRAM, 0);
 
         struct ifreq ifr;
@@ -100,6 +100,47 @@ static void set_address(char* dev, char* address, unsigned long prefix_len) { /*
         /* FIXME */ ioctl(fd, SIOCSIFFLAGS, &ifr);
 } /* }}} */
 
+static void set_address4(char* dev, char* address, char* mask) { /* {{{ */
+        int fd=0;
+        struct sockaddr_in* addr;
+        struct ifreq ifr;
+
+        memset(&ifr, 0, sizeof(struct ifreq));
+        addr = (struct sockaddr_in *)&(ifr.ifr_addr);
+        memset(addr, 0, sizeof(struct sockaddr_in));
+        addr->sin_family = AF_INET;
+        addr->sin_addr.s_addr = inet_addr(address);
+
+        /* FIXME */ inet_pton(AF_INET, address, &addr->sin_addr.s_addr);
+
+        fd = socket(PF_INET, SOCK_DGRAM, 0);
+        if(fd < 0) {
+                perror("socket()");
+                return;
+        }
+
+        strncpy(ifr.ifr_name, dev, IFNAMSIZ);
+
+        if(ioctl(fd, SIOCSIFADDR, &ifr) != 0 ) {
+                perror("SIOCSIFADDR");
+                close(fd);
+                return;
+        }
+
+        addr = (struct sockaddr_in*)&(ifr.ifr_netmask);
+        /* FIXME */ inet_pton(AF_INET, mask, &addr->sin_addr.s_addr);
+
+        if(ioctl(fd, SIOCSIFNETMASK, &ifr) != 0 ) {
+                perror("SIOCSIFNETMASK");
+                close(fd);
+                return;
+        }
+
+        /* FIXME */ ioctl(fd, SIOCGIFFLAGS, &ifr);
+        ifr.ifr_flags |= IFF_UP | IFF_RUNNING;
+        /* FIXME */ ioctl(fd, SIOCSIFFLAGS, &ifr);
+} /* }}} */
+
 void setnonblocking(int fd) {/*{{{*/
         int opts;
 
@@ -131,11 +172,20 @@ int main(int argc, char** argv) {
 
         fprintf(stderr, "Initialized the interface %s as %d.\n", dev, fd_tun);
 
+        {
         // TODO: get this out of argv
         char address[] = "1234::1";
         unsigned long prefix_len = 16;
 
-        set_address(dev, address, prefix_len);
+        set_address6(dev, address, prefix_len);
+        }
+
+        {
+        char address[] = "10.10.10.1";
+        char mask[] = "255.255.255.252";
+
+        set_address4(dev, address, mask);
+        }
 
         uid_t uid = getuid ();
         if (setresuid (uid, uid, uid) != 0 )
diff --git a/src/vpn/tests/test-helper-ifaddr.sh b/src/vpn/tests/test-helper-ifaddr.sh
index ced529226..f64f9aa53 100755
--- a/src/vpn/tests/test-helper-ifaddr.sh
+++ b/src/vpn/tests/test-helper-ifaddr.sh
@@ -6,7 +6,7 @@ rm $FIFO
 
 mkfifo $FIFO
 
-/opt/gnunet/bin/gnunet-vpn-helper > $FIFO 2>&1 &
+/opt/gnunet/bin/gnunet-helper-vpn > $FIFO 2>&1 &
 
 PID=$!
 
@@ -20,13 +20,22 @@ while read line < $FIFO; do
         fi
 done
 
+r=0
 if /sbin/ifconfig $IF | grep inet6 | grep -q '1234::1/16'; then
         echo OK
-        exit 0
 else
-        echo FAILED: Interface-Address not set!
-        exit 1
+        echo FAILED: Interface-Address not set for IPv6!
+        r=1
+fi
+
+if /sbin/ifconfig $IF | grep "inet " | grep -q '10.10.10.1'; then
+        echo OK
+else
+        echo FAILED: Interface-Address not set for IPv4!
+        r=1
 fi
 
 rm $FIFO
 kill $PID
+
+exit $r