diff options
| author | Nikolay Aleksandrov <nikolay@cumulusnetworks.com> | 2020-01-24 13:40:21 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-01-24 12:58:14 +0100 |
| commit | a5d29ae226812ae620f58a0726525d8af9b1d751 (patch) | |
| tree | 2f5e080c49157bfaefb7686845d2fddd6a9940ae /net/bridge/br_vlan.c | |
| parent | 7a53e718c551752924416b33235bf338729b5115 (diff) | |
net: bridge: vlan: add basic option setting support
This patch adds support for option modification of single vlans and
ranges. It allows to only modify options, i.e. skip create/delete by
using the BRIDGE_VLAN_INFO_ONLY_OPTS flag. When working with a range
option changes we try to pack the notifications as much as possible.
v2: do full port (all vlans) notification only when creating/deleting
vlans for compatibility, rework the range detection when changing
options, add more verbose extack errors and check if a vlan should
be used (br_vlan_should_use checks)
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_vlan.c')
| -rw-r--r-- | net/bridge/br_vlan.c | 41 |
1 files changed, 34 insertions, 7 deletions
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c index 75ec3da92b0b..d747756eac63 100644 --- a/net/bridge/br_vlan.c +++ b/net/bridge/br_vlan.c @@ -1667,8 +1667,8 @@ out_kfree: } /* check if v_curr can enter a range ending in range_end */ -static bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, - const struct net_bridge_vlan *range_end) +bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, + const struct net_bridge_vlan *range_end) { return v_curr->vid - range_end->vid == 1 && range_end->flags == v_curr->flags && @@ -1824,11 +1824,11 @@ static int br_vlan_rtm_process_one(struct net_device *dev, { struct bridge_vlan_info *vinfo, vrange_end, *vinfo_last = NULL; struct nlattr *tb[BRIDGE_VLANDB_ENTRY_MAX + 1]; + bool changed = false, skip_processing = false; struct net_bridge_vlan_group *vg; struct net_bridge_port *p = NULL; int err = 0, cmdmap = 0; struct net_bridge *br; - bool changed = false; if (netif_is_bridge_master(dev)) { br = netdev_priv(dev); @@ -1882,16 +1882,43 @@ static int br_vlan_rtm_process_one(struct net_device *dev, switch (cmd) { case RTM_NEWVLAN: cmdmap = RTM_SETLINK; + skip_processing = !!(vinfo->flags & BRIDGE_VLAN_INFO_ONLY_OPTS); break; case RTM_DELVLAN: cmdmap = RTM_DELLINK; break; } - err = br_process_vlan_info(br, p, cmdmap, vinfo, &vinfo_last, &changed, - extack); - if (changed) - br_ifinfo_notify(cmdmap, br, p); + if (!skip_processing) { + struct bridge_vlan_info *tmp_last = vinfo_last; + + /* br_process_vlan_info may overwrite vinfo_last */ + err = br_process_vlan_info(br, p, cmdmap, vinfo, &tmp_last, + &changed, extack); + + /* notify first if anything changed */ + if (changed) + br_ifinfo_notify(cmdmap, br, p); + + if (err) + return err; + } + + /* deal with options */ + if (cmd == RTM_NEWVLAN) { + struct net_bridge_vlan *range_start, *range_end; + + if (vinfo_last) { + range_start = br_vlan_find(vg, vinfo_last->vid); + range_end = br_vlan_find(vg, vinfo->vid); + } else { + range_start = br_vlan_find(vg, vinfo->vid); + range_end = range_start; + } + + err = br_vlan_process_options(br, p, range_start, range_end, + tb, extack); + } return err; } |