src: rename ibrportname, obrportname

For bridge, iifname is the port name, whereas 'ibrport' is the
logical name of the bridge ("br0") the port ("iifname") is enslaved to.

So, 'ibrport' is a misnomer.

libnftl calls these 'bri_iifname' and 'bri_oifname', which is good
but using 'briiifname' in nft is rather ugly, so use 'ibridgename'
and 'obridgename' instead.

Old names are still recognized, listing shows the new names.

Signed-off-by: Florian Westphal <fw@strlen.de>

8 files changed, 42 insertions, 6 deletions

diff --git a/doc/nft.xml b/doc/nft.xml
index 88d39415..47e10690 100644
--- a/doc/nft.xml
+++ b/doc/nft.xml
@@ -2738,8 +2738,8 @@ filter output icmpv6 type { echo-request, echo-reply }
 						<arg>skgid</arg>
 						<arg>nftrace</arg>
 						<arg>rtclassid</arg>
-						<arg>ibriport</arg>
-						<arg>obriport</arg>
+						<arg>ibridgename</arg>
+						<arg>obridgename</arg>
 						<arg>pkttype</arg>
 						<arg>cpu</arg>
 						<arg>iifgroup</arg>
@@ -2853,12 +2853,12 @@ filter output icmpv6 type { echo-request, echo-reply }
 								<entry>realm</entry>
 							</row>
 							<row>
-								<entry>ibriport</entry>
+								<entry>ibridgename</entry>
 								<entry>Input bridge interface name</entry>
 								<entry>ifname</entry>
 							</row>
 							<row>
-								<entry>obriport</entry>
+								<entry>obridgename</entry>
 								<entry>Output bridge interface name</entry>
 								<entry>ifname</entry>
 							</row>
diff --git a/src/meta.c b/src/meta.c
index 11de2dab..f8010964 100644
--- a/src/meta.c
+++ b/src/meta.c
@@ -413,10 +413,10 @@ static const struct meta_template meta_templates[] = {
 						1    , BYTEORDER_HOST_ENDIAN),
 	[NFT_META_RTCLASSID]	= META_TEMPLATE("rtclassid", &realm_type,
 						4 * 8, BYTEORDER_HOST_ENDIAN),
-	[NFT_META_BRI_IIFNAME]	= META_TEMPLATE("ibriport",  &ifname_type,
+	[NFT_META_BRI_IIFNAME]	= META_TEMPLATE("ibridgename",  &ifname_type,
 						IFNAMSIZ * BITS_PER_BYTE,
 						BYTEORDER_HOST_ENDIAN),
-	[NFT_META_BRI_OIFNAME]	= META_TEMPLATE("obriport",  &ifname_type,
+	[NFT_META_BRI_OIFNAME]	= META_TEMPLATE("obridgename",  &ifname_type,
 						IFNAMSIZ * BITS_PER_BYTE,
 						BYTEORDER_HOST_ENDIAN),
 	[NFT_META_PKTTYPE]	= META_TEMPLATE("pkttype",   &pkttype_type,
@@ -451,6 +451,8 @@ static bool meta_key_is_qualified(enum nft_meta_keys key)
 	case NFT_META_PRIORITY:
 	case NFT_META_PRANDOM:
 	case NFT_META_SECPATH:
+	case NFT_META_BRI_IIFNAME:
+	case NFT_META_BRI_OIFNAME:
 		return true;
 	default:
 		return false;
@@ -652,6 +654,15 @@ struct error_record *meta_key_parse(const struct location *loc,
 		return NULL;
 	}
 
+	/* Backwards compat hack */
+	if (strcmp(str, "ibriport") == 0) {
+		*value = NFT_META_BRI_IIFNAME;
+		return NULL;
+	} else if (strcmp(str, "obriport") == 0) {
+		*value = NFT_META_BRI_OIFNAME;
+		return NULL;
+	}
+
 	len = (int)sizeof(buf);
 	size = sizeof(buf);
 
diff --git a/src/parser_bison.y b/src/parser_bison.y
index e2440be1..b948c66c 100644
--- a/src/parser_bison.y
+++ b/src/parser_bison.y
@@ -394,6 +394,8 @@ int nft_lex(void *, void *, void *);
 %token RTCLASSID		"rtclassid"
 %token IBRIPORT			"ibriport"
 %token OBRIPORT			"obriport"
+%token IBRIDGENAME		"ibridgename"
+%token OBRIDGENAME		"obridgename"
 %token PKTTYPE			"pkttype"
 %token CPU			"cpu"
 %token IIFGROUP			"iifgroup"
diff --git a/src/scanner.l b/src/scanner.l
index f3544ce5..9e8fe00b 100644
--- a/src/scanner.l
+++ b/src/scanner.l
@@ -486,7 +486,9 @@ addrstring	({macaddr}|{ip4addr}|{ip6addr})
 "nftrace"		{ return NFTRACE; }
 "rtclassid"		{ return RTCLASSID; }
 "ibriport"		{ return IBRIPORT; }
+"ibridgename"		{ return IBRIDGENAME; }
 "obriport"		{ return OBRIPORT; }
+"obridgename"		{ return OBRIDGENAME; }
 "pkttype"		{ return PKTTYPE; }
 "cpu"			{ return CPU; }
 "iifgroup"		{ return IIFGROUP; }
diff --git a/tests/py/bridge/meta.t b/tests/py/bridge/meta.t
new file mode 100644
index 00000000..ed373677
--- /dev/null
+++ b/tests/py/bridge/meta.t
@@ -0,0 +1,6 @@
+:input;type filter hook input priority 0
+
+*bridge;test-bridge;input
+
+meta obridgename "br0";ok;meta obridgename "br0"
+meta ibridgename "br0";ok;meta ibridgename "br0"
diff --git a/tests/py/bridge/meta.t.payload b/tests/py/bridge/meta.t.payload
new file mode 100644
index 00000000..2728c0a5
--- /dev/null
+++ b/tests/py/bridge/meta.t.payload
@@ -0,0 +1,10 @@
+# meta obridgename "br0"
+bridge test-bridge input
+  [ meta load bri_oifname => reg 1 ]
+  [ cmp eq reg 1 0x00307262 0x00000000 0x00000000 0x00000000 ]
+
+# meta ibridgename "br0"
+bridge test-bridge input
+  [ meta load bri_iifname => reg 1 ]
+  [ cmp eq reg 1 0x00307262 0x00000000 0x00000000 0x00000000 ]
+
diff --git a/tests/py/inet/meta.t b/tests/py/inet/meta.t
index d68896dc..cfde9f32 100644
--- a/tests/py/inet/meta.t
+++ b/tests/py/inet/meta.t
@@ -14,3 +14,5 @@ meta nfproto ipv6 meta l4proto tcp;ok;meta nfproto ipv6 meta l4proto 6
 meta nfproto ipv4 counter ip saddr 1.2.3.4;ok
 meta secpath exists;ok
 meta secpath missing;ok
+meta ibridgename "br0";fail
+meta obridgename "br0";fail
diff --git a/tests/py/ip/meta.t b/tests/py/ip/meta.t
index d0682adf..c3afae79 100644
--- a/tests/py/ip/meta.t
+++ b/tests/py/ip/meta.t
@@ -7,3 +7,6 @@ meta l4proto icmp icmp type echo-request;ok;icmp type echo-request
 meta l4proto ipv6-icmp icmpv6 type nd-router-advert;ok;icmpv6 type nd-router-advert
 meta l4proto 58 icmpv6 type nd-router-advert;ok;icmpv6 type nd-router-advert
 icmpv6 type nd-router-advert;ok
+
+meta ibridgename "br0";fail
+meta obridgename "br0";fail