From: Marek Zarychta <zarychtam@plan-b.pwste.edu.pl>
Date: Tue, 22 Apr 2025 21:13:42 +0000 (+0200)
Subject: BSD: Handle systems without legacy IP support
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d8299da6b84886e9bedfd67c0ee25617701bba1f;p=thirdparty%2Fhostap.git

BSD: Handle systems without legacy IP support

Currently, wpa_supplicant fails to operate when legacy IP support is
disabled (i.e., the system is built with WITHOUT_INET and the kernel is
configured with nooptions INET). Address the issue by enabling
wpa_supplicant to run and connect to wireless networks even in the
absence of AF_INET, as long as AF_INET6 is available.

Signed-off-by: Marek Zarychta <zarychtam@plan-b.pwste.edu.pl>
---

diff --git a/src/drivers/driver_bsd.c b/src/drivers/driver_bsd.c
index 8e4c0390f..b5d2e42f1 100644
--- a/src/drivers/driver_bsd.c
+++ b/src/drivers/driver_bsd.c
@@ -1684,9 +1684,22 @@ bsd_global_init(void *ctx)
 
 	global->sock = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
 	if (global->sock < 0) {
-		wpa_printf(MSG_ERROR, "socket[PF_INET,SOCK_DGRAM]: %s",
-			   strerror(errno));
-		goto fail1;
+		if (errno == EAFNOSUPPORT) {
+			wpa_printf(MSG_DEBUG,
+				   "INET not supported, trying INET6...");
+			global->sock = socket(PF_INET6,
+					      SOCK_DGRAM | SOCK_CLOEXEC, 0);
+			if (global->sock < 0) {
+				wpa_printf(MSG_ERROR,
+					   "socket[PF_INET6,SOCK_DGRAM]: %s",
+					   strerror(errno));
+				goto fail1;
+			}
+		} else {
+			wpa_printf(MSG_ERROR, "socket[PF_INET,SOCK_DGRAM]: %s",
+				   strerror(errno));
+			goto fail1;
+		}
 	}
 
 	global->route = socket(PF_ROUTE,