__be16 protocol;
};
-static void get_gre_param(const struct tnl_mutable_config *mutable,
- const struct ovs_key_ipv4_tunnel *tun_key,
- u32 *flags, u32 *tunnel_type, __be64 *out_key)
-{
- if (tun_key->ipv4_dst) {
- *flags = 0;
-
- if (tun_key->tun_flags & OVS_FLOW_TNL_F_KEY)
- *flags = TNL_F_OUT_KEY_ACTION;
- if (tun_key->tun_flags & OVS_FLOW_TNL_F_CSUM)
- *flags |= TNL_F_CSUM;
- *tunnel_type = TNL_T_PROTO_GRE;
- *out_key = tun_key->tun_id;
- } else {
- *flags = mutable->flags;
- *tunnel_type = mutable->key.tunnel_type;
- if (mutable->flags & TNL_F_OUT_KEY_ACTION)
- *out_key = tun_key->tun_id;
- else
- *out_key = mutable->out_key;
-
- }
-}
-
static int gre_hdr_len(const struct tnl_mutable_config *mutable,
const struct ovs_key_ipv4_tunnel *tun_key)
{
int len;
u32 flags;
- u32 tunnel_type;
__be64 out_key;
- get_gre_param(mutable, tun_key, &flags, &tunnel_type, &out_key);
+ tnl_get_param(mutable, tun_key, &flags, &out_key);
len = GRE_HEADER_SECTION;
if (flags & TNL_F_CSUM)
/* Set key for GRE64 tunnels, even when key if is zero. */
if (out_key ||
- tunnel_type & TNL_T_PROTO_GRE64 ||
+ mutable->key.tunnel_type & TNL_T_PROTO_GRE64 ||
flags & TNL_F_OUT_KEY_ACTION) {
len += GRE_HEADER_SECTION;
- if (tunnel_type & TNL_T_PROTO_GRE64)
+ if (mutable->key.tunnel_type & TNL_T_PROTO_GRE64)
len += GRE_HEADER_SECTION;
}
return len;
#endif
}
-static void gre_build_header(const struct vport *vport,
- const struct tnl_mutable_config *mutable,
- const struct ovs_key_ipv4_tunnel *tun_key,
- void *header)
-{
- struct gre_base_hdr *greh = header;
- __be32 *options = (__be32 *)(greh + 1);
- u32 flags;
- u32 tunnel_type;
- __be64 out_key;
-
- get_gre_param(mutable, tun_key, &flags, &tunnel_type, &out_key);
-
- greh->protocol = htons(ETH_P_TEB);
- greh->flags = 0;
-
- if (flags & TNL_F_CSUM) {
- greh->flags |= GRE_CSUM;
- *options = 0;
- options++;
- }
-
- if (flags & TNL_F_OUT_KEY_ACTION) {
- greh->flags |= GRE_KEY;
- if (tunnel_type & TNL_T_PROTO_GRE64)
- greh->flags |= GRE_SEQ;
-
- } else if (out_key ||
- tunnel_type & TNL_T_PROTO_GRE64) {
- greh->flags |= GRE_KEY;
- *options = be64_get_low32(out_key);
- if (tunnel_type & TNL_T_PROTO_GRE64) {
- options++;
- *options = be64_get_high32(out_key);
- greh->flags |= GRE_SEQ;
- }
- }
-}
-
-static struct sk_buff *gre_update_header(const struct vport *vport,
+static struct sk_buff *gre_build_header(const struct vport *vport,
const struct tnl_mutable_config *mutable,
struct dst_entry *dst,
struct sk_buff *skb,
int tunnel_hlen)
{
u32 flags;
- u32 tunnel_type;
__be64 out_key;
const struct ovs_key_ipv4_tunnel *tun_key = OVS_CB(skb)->tun_key;
__be32 *options = (__be32 *)(skb_network_header(skb) + tunnel_hlen
- GRE_HEADER_SECTION);
+ struct gre_base_hdr *greh = (struct gre_base_hdr *) skb_transport_header(skb);
- get_gre_param(mutable, tun_key, &flags, &tunnel_type, &out_key);
+ tnl_get_param(mutable, tun_key, &flags, &out_key);
+
+ greh->protocol = htons(ETH_P_TEB);
+ greh->flags = 0;
/* Work backwards over the options so the checksum is last. */
- if (flags & TNL_F_OUT_KEY_ACTION) {
- if (tunnel_type & TNL_T_PROTO_GRE64) {
+ if (out_key || flags & TNL_F_OUT_KEY_ACTION ||
+ mutable->key.tunnel_type & TNL_T_PROTO_GRE64) {
+ greh->flags |= GRE_KEY;
+ if (mutable->key.tunnel_type & TNL_T_PROTO_GRE64) {
/* Set higher 32 bits to seq. */
*options = be64_get_high32(out_key);
options--;
+ greh->flags |= GRE_SEQ;
}
*options = be64_get_low32(out_key);
options--;
- } else if (out_key || tunnel_type & TNL_T_PROTO_GRE64) {
- options--;
- if (tunnel_type & TNL_T_PROTO_GRE64)
- options--;
}
- if (flags & TNL_F_CSUM)
+ if (flags & TNL_F_CSUM) {
+ greh->flags |= GRE_CSUM;
+ *options = 0;
*(__sum16 *)options = csum_fold(skb_checksum(skb,
skb_transport_offset(skb),
skb->len - skb_transport_offset(skb),
0));
+ }
/*
* Allow our local IP stack to fragment the outer packet even if the
* DF bit is set as a last resort. We also need to force selection of
if (gre_flags & GRE_KEY) {
if (mutable->key.daddr && (mutable->flags & TNL_F_IN_KEY_MATCH))
- tunnel_flags = OVS_FLOW_TNL_F_KEY;
+ tunnel_flags = OVS_TNL_F_KEY;
else if (!mutable->key.daddr)
- tunnel_flags = OVS_FLOW_TNL_F_KEY;
+ tunnel_flags = OVS_TNL_F_KEY;
}
if (gre_flags & GRE_CSUM)
- tunnel_flags |= OVS_FLOW_TNL_F_CSUM;
+ tunnel_flags |= OVS_TNL_F_CSUM;
return tunnel_flags;
}
.ipproto = IPPROTO_GRE,
.hdr_len = gre_hdr_len,
.build_header = gre_build_header,
- .update_header = gre_update_header,
};
static struct vport *gre_create(const struct vport_parms *parms)
return ovs_tnl_create(parms, &ovs_gre_vport_ops, &gre_tnl_ops);
}
+static struct vport *gre_create_ft(const struct vport_parms *parms)
+{
+ return ovs_tnl_create(parms, &ovs_gre_ft_vport_ops, &gre_tnl_ops);
+}
+
static const struct tnl_ops gre64_tnl_ops = {
.tunnel_type = TNL_T_PROTO_GRE64,
.ipproto = IPPROTO_GRE,
.hdr_len = gre_hdr_len,
.build_header = gre_build_header,
- .update_header = gre_update_header,
};
static struct vport *gre_create64(const struct vport_parms *parms)
inet_del_protocol(&gre_protocol_handlers, IPPROTO_GRE);
}
+const struct vport_ops ovs_gre_ft_vport_ops = {
+ .type = OVS_VPORT_TYPE_FT_GRE,
+ .flags = VPORT_F_TUN_ID,
+ .init = gre_init,
+ .exit = gre_exit,
+ .create = gre_create_ft,
+ .destroy = ovs_tnl_destroy,
+ .set_addr = ovs_tnl_set_addr,
+ .get_name = ovs_tnl_get_name,
+ .get_addr = ovs_tnl_get_addr,
+ .get_options = ovs_tnl_get_options,
+ .set_options = ovs_tnl_set_options,
+ .get_dev_flags = ovs_vport_gen_get_dev_flags,
+ .is_running = ovs_vport_gen_is_running,
+ .get_operstate = ovs_vport_gen_get_operstate,
+ .send = ovs_tnl_send,
+};
+
const struct vport_ops ovs_gre_vport_ops = {
.type = OVS_VPORT_TYPE_GRE,
.flags = VPORT_F_TUN_ID,
projects / openvswitch / blobdiff