diff mbox series

[iproute2-next,03/17] bridge: vlan: add support for vlan filtering when dumping options

Message ID 20210826130533.149111-4-razor@blackwall.org
State Superseded
Headers show
Series bridge: vlan: add global multicast options | expand

Commit Message

Nikolay Aleksandrov Aug. 26, 2021, 1:05 p.m. UTC 
From: Nikolay Aleksandrov <nikolay@nvidia.com>

In order to allow vlan filtering when dumping options we need to move
all print operations into the option dumping functions and add the
filtering after we've parsed the nested attributes so we can extract the
start and end vlan ids.

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
---
 bridge/vlan.c | 45 ++++++++++++++++++++++++++++++---------------
 1 file changed, 30 insertions(+), 15 deletions(-)
diff mbox series

Patch

diff --git a/bridge/vlan.c b/bridge/vlan.c
index 9e33995f8f33..69a1d3c295b6 100644
--- a/bridge/vlan.c
+++ b/bridge/vlan.c
@@ -622,7 +622,7 @@  static int print_vlan_stats(struct nlmsghdr *n, void *arg)
 	return 0;
 }
 
-static void print_vlan_global_opts(struct rtattr *a)
+static void print_vlan_global_opts(struct rtattr *a, int ifindex)
 {
 	struct rtattr *vtb[BRIDGE_VLANDB_GOPTS_MAX + 1];
 	__u16 vid, vrange = 0;
@@ -637,11 +637,24 @@  static void print_vlan_global_opts(struct rtattr *a)
 		vrange = rta_getattr_u16(vtb[BRIDGE_VLANDB_GOPTS_RANGE]);
 	else
 		vrange = vid;
+
+	if (filter_vlan && (filter_vlan < vid || filter_vlan > vrange))
+		return;
+
+	if (vlan_rtm_cur_ifidx != ifindex) {
+		open_vlan_port(ifindex, VLAN_SHOW_VLAN);
+		open_json_object(NULL);
+		vlan_rtm_cur_ifidx = ifindex;
+	} else {
+		open_json_object(NULL);
+		print_string(PRINT_FP, NULL, "%-" __stringify(IFNAMSIZ) "s  ", "");
+	}
 	print_range("vlan", vid, vrange);
 	print_nl();
+	close_json_object();
 }
 
-static void print_vlan_opts(struct rtattr *a)
+static void print_vlan_opts(struct rtattr *a, int ifindex)
 {
 	struct rtattr *vtb[BRIDGE_VLANDB_ENTRY_MAX + 1];
 	struct bridge_vlan_xstats vstats;
@@ -662,6 +675,9 @@  static void print_vlan_opts(struct rtattr *a)
 	else
 		vrange = vinfo->vid;
 
+	if (filter_vlan && (filter_vlan < vinfo->vid || filter_vlan > vrange))
+		return;
+
 	if (vtb[BRIDGE_VLANDB_ENTRY_STATE])
 		state = rta_getattr_u8(vtb[BRIDGE_VLANDB_ENTRY_STATE]);
 
@@ -690,6 +706,15 @@  static void print_vlan_opts(struct rtattr *a)
 			vstats.tx_bytes = rta_getattr_u64(attr);
 		}
 	}
+
+	if (vlan_rtm_cur_ifidx != ifindex) {
+		open_vlan_port(ifindex, VLAN_SHOW_VLAN);
+		open_json_object(NULL);
+		vlan_rtm_cur_ifidx = ifindex;
+	} else {
+		open_json_object(NULL);
+		print_string(PRINT_FP, NULL, "%-" __stringify(IFNAMSIZ) "s  ", "");
+	}
 	print_range("vlan", vinfo->vid, vrange);
 	print_vlan_flags(vinfo->flags);
 	print_nl();
@@ -698,6 +723,7 @@  static void print_vlan_opts(struct rtattr *a)
 	print_nl();
 	if (show_stats)
 		__print_one_vlan_stats(&vstats);
+	close_json_object();
 }
 
 int print_vlan_rtm(struct nlmsghdr *n, void *arg, bool monitor, bool global_only)
@@ -746,25 +772,14 @@  int print_vlan_rtm(struct nlmsghdr *n, void *arg, bool monitor, bool global_only
 		    (global_only && rta_type != BRIDGE_VLANDB_GLOBAL_OPTIONS))
 			continue;
 
-		if (vlan_rtm_cur_ifidx != bvm->ifindex) {
-			open_vlan_port(bvm->ifindex, VLAN_SHOW_VLAN);
-			open_json_object(NULL);
-			vlan_rtm_cur_ifidx = bvm->ifindex;
-		} else {
-			open_json_object(NULL);
-			print_string(PRINT_FP, NULL, "%-" __stringify(IFNAMSIZ) "s  ", "");
-		}
-
 		switch (rta_type) {
 		case BRIDGE_VLANDB_ENTRY:
-			print_vlan_opts(a);
+			print_vlan_opts(a, bvm->ifindex);
 			break;
 		case BRIDGE_VLANDB_GLOBAL_OPTIONS:
-			print_vlan_global_opts(a);
+			print_vlan_global_opts(a, bvm->ifindex);
 			break;
 		}
-
-		close_json_object();
 	}
 
 	return 0;