From ea9d6d8870c862fc3218147f2d072d3d3db3fa49 Mon Sep 17 00:00:00 2001
From: Evgeny <me@jeka.su>
Date: Sun, 8 Mar 2026 20:52:49 +0300
Subject: [PATCH] 1

---
 src/tun_freebsd.c | 30 +++++++++++-------------------
 1 file changed, 11 insertions(+), 19 deletions(-)

diff --git a/src/tun_freebsd.c b/src/tun_freebsd.c
index a47407ca..3ee96127 100644
--- a/src/tun_freebsd.c
+++ b/src/tun_freebsd.c
@@ -117,22 +117,22 @@ static int tun_set_ip(const char *ifname, const char *ip_addr) {
     return 0;
 }
 
-// Bring TUN interface up
+// Bring TUN interface up (using ifconfig - more reliable on FreeBSD)
 static int tun_set_up(const char *ifname) {
     if (!ifname) {
         errno = EINVAL;
         return -1;
     }
 
-    struct ifreq ifr;
-    memset(&ifr, 0, sizeof(ifr));
-
-    // Get current flags
-    if (if_ioctl(ifname, SIOCGIFFLAGS, &ifr) < 0) return -1;
-
-    // Set UP and RUNNING
-    ifr.ifr_flags |= IFF_UP | IFF_RUNNING;
-    if (if_ioctl(ifname, SIOCSIFFLAGS, &ifr) < 0) return -1;
+    // Use ifconfig to bring up the interface
+    char cmd[256];
+    snprintf(cmd, sizeof(cmd), "ifconfig %s up 2>/dev/null", ifname);
+    
+    int ret = system(cmd);
+    if (ret != 0) {
+        DEBUG_ERROR(DEBUG_CATEGORY_TUN, "ifconfig %s up failed", ifname);
+        return -1;
+    }
 
     return 0;
 }
@@ -164,15 +164,7 @@ int tun_platform_init(struct tun_if* tun, const char* ifname, const char* ip_str
         return -1;
     }
 
-    // Bring interface UP first (required before setting IP on FreeBSD)
-    if (tun_set_up(tun->ifname) < 0) {
-        DEBUG_ERROR(DEBUG_CATEGORY_TUN, "Failed to bring up TUN interface %s", tun->ifname);
-        close(tun->fd);
-        tun->fd = -1;
-        return -1;
-    }
-
-    // Configure IP address using ifconfig
+    // Configure IP address using ifconfig (also brings up the interface)
     if (tun_set_ip(tun->ifname, ip_str) < 0) {
         DEBUG_ERROR(DEBUG_CATEGORY_TUN, "Failed to set TUN IP: %s", ip_str);
         close(tun->fd);