From: Hans Dedecker <dedeckeh@gmail.com>
Date: Mon, 15 May 2017 13:58:46 +0000 (+0200)
Subject: config: limit ra_retranstime to 60000
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fodhcpd.git;a=commitdiff_plain;h=f8f4b8769fbbd4fd52d2854c912b5d298ff8f8fb

config: limit ra_retranstime to 60000

Limit the maximum ra_retranstime value to 60000 milliseconds as
described in RFC7048.

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
---

diff --git a/src/config.c b/src/config.c
index 9348985..979603c 100644
--- a/src/config.c
+++ b/src/config.c
@@ -608,8 +608,11 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
 			goto err;
 	}
 
-	if ((c = tb[IFACE_ATTR_RA_RETRANSTIME]))
+	if ((c = tb[IFACE_ATTR_RA_RETRANSTIME])) {
 		iface->ra_retranstime = blobmsg_get_u32(c);
+		if (iface->ra_retranstime > 60000)
+			goto err;
+	}
 
 	if ((c = tb[IFACE_ATTR_RA_HOPLIMIT])) {
 		iface->ra_hoplimit = blobmsg_get_u32(c);