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-rw-r--r--net/ax25/ax25_ip.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/net/ax25/ax25_ip.c b/net/ax25/ax25_ip.c
index b563a3f5f2a8..2fa3be965101 100644
--- a/net/ax25/ax25_ip.c
+++ b/net/ax25/ax25_ip.c
@@ -228,8 +228,23 @@ netdev_tx_t ax25_ip_xmit(struct sk_buff *skb)
}
#endif
+static bool ax25_validate_header(const char *header, unsigned int len)
+{
+ ax25_digi digi;
+
+ if (!len)
+ return false;
+
+ if (header[0])
+ return true;
+
+ return ax25_addr_parse(header + 1, len - 1, NULL, NULL, &digi, NULL,
+ NULL);
+}
+
const struct header_ops ax25_header_ops = {
.create = ax25_hard_header,
+ .validate = ax25_validate_header,
};
EXPORT_SYMBOL(ax25_header_ops);