From: Roy Marples <roy@marples.name>
Date: Tue, 3 Sep 2013 09:28:37 +0000 (+0000)
Subject: Check kernel for autoconf support.
X-Git-Tag: v6.1.0~33
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=8a06b57ddc5023f213bffa0af9a0413680d3e72d;p=thirdparty%2Fdhcpcd.git

Check kernel for autoconf support.
---

diff --git a/platform-linux.c b/platform-linux.c
index 7c415d2f..ba275b5e 100644
--- a/platform-linux.c
+++ b/platform-linux.c
@@ -191,6 +191,14 @@ check_ipv6(const char *ifname, int own)
 	} else
 		ex = 0;
 
+	snprintf(path, sizeof(path), "%s/%s/autoconf", prefix, ifname);
+	i = check_proc_int(path);
+	if (i != 1) {
+		syslog(LOG_WARNING, "%s: IPv6 kernel autoconf disabled",
+		    ifname);
+		return -1;
+	}
+
 	snprintf(path, sizeof(path), "%s/%s/accept_ra", prefix, ifname);
 	ra = check_proc_int(path);
 	if (ra == -1)