From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 30 Apr 2020 20:13:09 +0000 (+0200)
Subject: netlink: allow NLA_MSECS to have range validation
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=da4063bdfcfa70ec57a6c25f772ac6378b1584ad;p=openwrt%2Fstaging%2Fblogic.git

netlink: allow NLA_MSECS to have range validation

Since NLA_MSECS is really equivalent to NLA_U64, allow
it to have range validation as well.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/net/netlink.h b/include/net/netlink.h
index 94a7df4ab122..4acd7165e900 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -371,7 +371,8 @@ struct nla_policy {
 #define __NLA_ENSURE(condition) BUILD_BUG_ON_ZERO(!(condition))
 #define NLA_ENSURE_UINT_TYPE(tp)			\
 	(__NLA_ENSURE(tp == NLA_U8 || tp == NLA_U16 ||	\
-		      tp == NLA_U32 || tp == NLA_U64) + tp)
+		      tp == NLA_U32 || tp == NLA_U64 ||	\
+		      tp == NLA_MSECS) + tp)
 #define NLA_ENSURE_SINT_TYPE(tp)			\
 	(__NLA_ENSURE(tp == NLA_S8 || tp == NLA_S16  ||	\
 		      tp == NLA_S32 || tp == NLA_S64) + tp)
@@ -379,7 +380,8 @@ struct nla_policy {
 	(__NLA_ENSURE(tp == NLA_S8 || tp == NLA_U8 ||	\
 		      tp == NLA_S16 || tp == NLA_U16 ||	\
 		      tp == NLA_S32 || tp == NLA_U32 ||	\
-		      tp == NLA_S64 || tp == NLA_U64) + tp)
+		      tp == NLA_S64 || tp == NLA_U64 ||	\
+		      tp == NLA_MSECS) + tp)
 #define NLA_ENSURE_NO_VALIDATION_PTR(tp)		\
 	(__NLA_ENSURE(tp != NLA_BITFIELD32 &&		\
 		      tp != NLA_REJECT &&		\
diff --git a/lib/nlattr.c b/lib/nlattr.c
index a8beb173f558..21ef3998b9d9 100644
--- a/lib/nlattr.c
+++ b/lib/nlattr.c
@@ -151,6 +151,7 @@ static int nla_validate_int_range_unsigned(const struct nla_policy *pt,
 		value = nla_get_u32(nla);
 		break;
 	case NLA_U64:
+	case NLA_MSECS:
 		value = nla_get_u64(nla);
 		break;
 	default:
@@ -227,6 +228,7 @@ static int nla_validate_int_range(const struct nla_policy *pt,
 	case NLA_U16:
 	case NLA_U32:
 	case NLA_U64:
+	case NLA_MSECS:
 		return nla_validate_int_range_unsigned(pt, nla, extack);
 	case NLA_S8:
 	case NLA_S16: