From: Roopa Prabhu <roopa@nvidia.com>
To: <davem@davemloft.net>, <kuba@kernel.org>
Cc: <netdev@vger.kernel.org>, <stephen@networkplumber.org>,
<nikolay@cumulusnetworks.com>, <idosch@nvidia.com>,
<dsahern@gmail.com>
Subject: [PATCH net-next 05/12] vxlan_core: add helper vxlan_vni_in_use
Date: Sun, 20 Feb 2022 14:03:58 +0000 [thread overview]
Message-ID: <20220220140405.1646839-6-roopa@nvidia.com> (raw)
In-Reply-To: <20220220140405.1646839-1-roopa@nvidia.com>
more users in follow up patches
Signed-off-by: Roopa Prabhu <roopa@nvidia.com>
---
drivers/net/vxlan/vxlan_core.c | 46 +++++++++++++++++++++-------------
1 file changed, 28 insertions(+), 18 deletions(-)
diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
index 3f3e606c3c7d..d17d450f2058 100644
--- a/drivers/net/vxlan/vxlan_core.c
+++ b/drivers/net/vxlan/vxlan_core.c
@@ -3546,13 +3546,38 @@ static int vxlan_sock_add(struct vxlan_dev *vxlan)
return ret;
}
+static int vxlan_vni_in_use(struct net *src_net, struct vxlan_dev *vxlan,
+ struct vxlan_config *conf, __be32 vni)
+{
+ struct vxlan_net *vn = net_generic(src_net, vxlan_net_id);
+ struct vxlan_dev *tmp;
+
+ list_for_each_entry(tmp, &vn->vxlan_list, next) {
+ if (tmp == vxlan)
+ continue;
+ if (tmp->cfg.vni != vni)
+ continue;
+ if (tmp->cfg.dst_port != conf->dst_port)
+ continue;
+ if ((tmp->cfg.flags & (VXLAN_F_RCV_FLAGS | VXLAN_F_IPV6)) !=
+ (conf->flags & (VXLAN_F_RCV_FLAGS | VXLAN_F_IPV6)))
+ continue;
+
+ if ((conf->flags & VXLAN_F_IPV6_LINKLOCAL) &&
+ tmp->cfg.remote_ifindex != conf->remote_ifindex)
+ continue;
+
+ return -EEXIST;
+ }
+
+ return 0;
+}
+
static int vxlan_config_validate(struct net *src_net, struct vxlan_config *conf,
struct net_device **lower,
struct vxlan_dev *old,
struct netlink_ext_ack *extack)
{
- struct vxlan_net *vn = net_generic(src_net, vxlan_net_id);
- struct vxlan_dev *tmp;
bool use_ipv6 = false;
if (conf->flags & VXLAN_F_GPE) {
@@ -3685,22 +3710,7 @@ static int vxlan_config_validate(struct net *src_net, struct vxlan_config *conf,
if (!conf->age_interval)
conf->age_interval = FDB_AGE_DEFAULT;
- list_for_each_entry(tmp, &vn->vxlan_list, next) {
- if (tmp == old)
- continue;
-
- if (tmp->cfg.vni != conf->vni)
- continue;
- if (tmp->cfg.dst_port != conf->dst_port)
- continue;
- if ((tmp->cfg.flags & (VXLAN_F_RCV_FLAGS | VXLAN_F_IPV6)) !=
- (conf->flags & (VXLAN_F_RCV_FLAGS | VXLAN_F_IPV6)))
- continue;
-
- if ((conf->flags & VXLAN_F_IPV6_LINKLOCAL) &&
- tmp->cfg.remote_ifindex != conf->remote_ifindex)
- continue;
-
+ if (vxlan_vni_in_use(src_net, old, conf, conf->vni)) {
NL_SET_ERR_MSG(extack,
"A VXLAN device with the specified VNI already exists");
return -EEXIST;
--
2.25.1
next prev parent reply other threads:[~2022-02-20 14:05 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-20 14:03 [PATCH net-next 00/12] vxlan metadata device vnifiltering support Roopa Prabhu
2022-02-20 14:03 ` [PATCH net-next 01/12] vxlan: move to its own directory Roopa Prabhu
2022-02-20 14:03 ` [PATCH net-next 02/12] vxlan_core: move common declarations to private header file Roopa Prabhu
2022-02-20 14:03 ` [PATCH net-next 03/12] vxlan_core: move some fdb helpers to non-static Roopa Prabhu
2022-02-20 14:03 ` [PATCH net-next 04/12] vxlan_core: make multicast helper take rip and ifindex explicitly Roopa Prabhu
2022-02-20 14:03 ` Roopa Prabhu [this message]
2022-02-20 14:03 ` [PATCH net-next 06/12] rtnetlink: add new rtm tunnel api for tunnel id filtering Roopa Prabhu
2022-02-20 14:29 ` Roopa Prabhu
2022-02-20 14:04 ` [PATCH net-next 07/12] vxlan_multicast: Move multicast helpers to a separate file Roopa Prabhu
2022-02-20 14:04 ` [PATCH net-next 08/12] vxlan: vni filtering support on collect metadata device Roopa Prabhu
2022-02-20 22:24 ` kernel test robot
2022-02-20 14:04 ` [PATCH net-next 09/12] selftests: add new tests for vxlan vnifiltering Roopa Prabhu
2022-02-20 14:04 ` [PATCH net-next 10/12] selinux: add support for RTM_NEWTUNNEL, RTM_DELTUNNEL, and RTM_GETTUNNEL Roopa Prabhu
2022-02-21 1:47 ` Benjamin Poirier
2022-02-20 14:04 ` [PATCH net-next 11/12] drivers: vxlan: vnifilter: per vni stats Roopa Prabhu
2022-02-21 2:11 ` kernel test robot
2022-02-20 14:04 ` [PATCH net-next 12/12] drivers: vxlan: vnifilter: add support for stats dumping Roopa Prabhu
2022-02-20 14:12 ` Nikolay Aleksandrov
2022-02-20 14:27 ` Roopa Prabhu
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