[PATCH nft] fib: Change data type of fib oifname to "ifname"

[Xiao Liang <shaw.leon@gmail.com>]

Change data type of fib oifname from "string" to "ifname", so that it
can be matched against a set of ifnames:

    set x {
            type ifname
    }
    chain y {
            fib saddr oifname @x drop
    }

Signed-off-by: Xiao Liang <shaw.leon@gmail.com>
---
 doc/primary-expression.txt                                    | 4 ++--
 src/fib.c                                                     | 2 +-
 tests/shell/testcases/sets/0029named_ifname_dtype_0           | 1 +
 tests/shell/testcases/sets/dumps/0029named_ifname_dtype_0.nft | 1 +
 4 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/doc/primary-expression.txt b/doc/primary-expression.txt
index c6a33bbe..40aca3d3 100644
--- a/doc/primary-expression.txt
+++ b/doc/primary-expression.txt
@@ -354,10 +354,10 @@ address types can be shown with *nft* *describe* *fib_addrtype*.
 |Keyword| Description| Result Type
 |oif|
 Output interface index|
-integer (32 bit)
+iface_index
 |oifname|
 Output interface name|
-string
+ifname
 |type|
 Address type |
 fib_addrtype (see *nft* *describe* *fib_addrtype* for a list)
diff --git a/src/fib.c b/src/fib.c
index e95271c9..5a7c1170 100644
--- a/src/fib.c
+++ b/src/fib.c
@@ -179,7 +179,7 @@ struct expr *fib_expr_alloc(const struct location *loc,
 		type = &ifindex_type;
 		break;
 	case NFT_FIB_RESULT_OIFNAME:
-		type = &string_type;
+		type = &ifname_type;
 		len = IFNAMSIZ * BITS_PER_BYTE;
 		break;
 	case NFT_FIB_RESULT_ADDRTYPE:
diff --git a/tests/shell/testcases/sets/0029named_ifname_dtype_0 b/tests/shell/testcases/sets/0029named_ifname_dtype_0
index 2dbcd22b..ea581406 100755
--- a/tests/shell/testcases/sets/0029named_ifname_dtype_0
+++ b/tests/shell/testcases/sets/0029named_ifname_dtype_0
@@ -40,6 +40,7 @@ EXPECTED="table inet t {
 	chain c {
 		iifname @s accept
 		oifname @s accept
+		fib saddr oifname @s accept
 		tcp dport . meta iifname @sc accept
 		meta iifname . meta mark @nv accept
 	}
diff --git a/tests/shell/testcases/sets/dumps/0029named_ifname_dtype_0.nft b/tests/shell/testcases/sets/dumps/0029named_ifname_dtype_0.nft
index 55cd4f26..6f9832a9 100644
--- a/tests/shell/testcases/sets/dumps/0029named_ifname_dtype_0.nft
+++ b/tests/shell/testcases/sets/dumps/0029named_ifname_dtype_0.nft
@@ -51,6 +51,7 @@ table inet t {
 	chain c {
 		iifname @s accept
 		oifname @s accept
+		fib saddr oifname @s accept
 		tcp dport . iifname @sc accept
 		iifname . meta mark @nv accept
 	}
-- 
2.48.1