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From: Phil Sutter <phil@nwl.cc>
To: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: netfilter-devel@vger.kernel.org
Subject: [nft PATCH] mnl: Replace use of untyped nftnl data setters
Date: Tue, 29 Oct 2019 13:54:20 +0100	[thread overview]
Message-ID: <20191029125420.26178-1-phil@nwl.cc> (raw)

Setting strings won't make a difference, but passing data length to
*_set_data() functions allows for catching accidental changes on either
side.

Signed-off-by: Phil Sutter <phil@nwl.cc>
---
 src/mnl.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/mnl.c b/src/mnl.c
index 75ab07b045aa5..5b0569f37b27e 100644
--- a/src/mnl.c
+++ b/src/mnl.c
@@ -695,7 +695,7 @@ int mnl_nft_table_add(struct netlink_ctx *ctx, const struct cmd *cmd,
 		memory_allocation_error();
 
 	nftnl_table_set_u32(nlt, NFTNL_TABLE_FAMILY, cmd->handle.family);
-	nftnl_table_set(nlt, NFTNL_TABLE_NAME, cmd->handle.table.name);
+	nftnl_table_set_str(nlt, NFTNL_TABLE_NAME, cmd->handle.table.name);
 	if (cmd->table)
 		nftnl_table_set_u32(nlt, NFTNL_TABLE_FLAGS, cmd->table->flags);
 	else
@@ -724,7 +724,8 @@ int mnl_nft_table_del(struct netlink_ctx *ctx, const struct cmd *cmd)
 
 	nftnl_table_set_u32(nlt, NFTNL_TABLE_FAMILY, cmd->handle.family);
 	if (cmd->handle.table.name)
-		nftnl_table_set(nlt, NFTNL_TABLE_NAME, cmd->handle.table.name);
+		nftnl_table_set_str(nlt, NFTNL_TABLE_NAME,
+				    cmd->handle.table.name);
 	else if (cmd->handle.handle.id)
 		nftnl_table_set_u64(nlt, NFTNL_TABLE_HANDLE,
 				    cmd->handle.handle.id);
@@ -1016,8 +1017,9 @@ int mnl_nft_obj_add(struct netlink_ctx *ctx, const struct cmd *cmd,
 		if (obj->ct_timeout.l3proto)
 			nftnl_obj_set_u16(nlo, NFTNL_OBJ_CT_TIMEOUT_L3PROTO,
 					  obj->ct_timeout.l3proto);
-		nftnl_obj_set(nlo, NFTNL_OBJ_CT_TIMEOUT_ARRAY,
-			      obj->ct_timeout.timeout);
+		nftnl_obj_set_data(nlo, NFTNL_OBJ_CT_TIMEOUT_ARRAY,
+				   obj->ct_timeout.timeout,
+				   sizeof(obj->ct_timeout.timeout));
 		break;
 	case NFT_OBJECT_CT_EXPECT:
 		if (obj->ct_expect.l3proto)
@@ -1418,7 +1420,8 @@ int mnl_nft_flowtable_add(struct netlink_ctx *ctx, const struct cmd *cmd,
 		dev_array[i++] = expr->identifier;
 
 	dev_array[i] = NULL;
-	nftnl_flowtable_set(flo, NFTNL_FLOWTABLE_DEVICES, dev_array);
+	nftnl_flowtable_set_data(flo, NFTNL_FLOWTABLE_DEVICES,
+				 dev_array, sizeof(dev_array));
 
 	netlink_dump_flowtable(flo, ctx);
 
-- 
2.23.0


             reply	other threads:[~2019-10-29 12:54 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-29 12:54 Phil Sutter [this message]
2019-10-30 12:45 ` [nft PATCH] mnl: Replace use of untyped nftnl data setters Pablo Neira Ayuso
2019-10-30 14:26   ` Phil Sutter
  -- strict thread matches above, loose matches on Subject: below --
2019-10-28 22:38 Phil Sutter

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