#include <vnet/fib/fib_table.h>
#include <vnet/mfib/mfib_table.h>
#include <vnet/adj/adj_mcast.h>
+#include <vnet/interface.h>
#include <vlib/vlib.h>
/**
static clib_error_t *
vxlan_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
{
- if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
- vnet_hw_interface_set_flags (vnm, hw_if_index, VNET_HW_INTERFACE_FLAG_LINK_UP);
- else
- vnet_hw_interface_set_flags (vnm, hw_if_index, 0);
+ u32 hw_flags = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ?
+ VNET_HW_INTERFACE_FLAG_LINK_UP : 0;
+ vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags);
return /* no error */ 0;
}
static vxlan_tunnel_t *
vxlan_tunnel_from_fib_node (fib_node_t *node)
{
-#if (CLIB_DEBUG > 0)
ASSERT(FIB_NODE_TYPE_VXLAN_TUNNEL == node->fn_type);
-#endif
return ((vxlan_tunnel_t*) (((char*)node) -
STRUCT_OFFSET_OF(vxlan_tunnel_t, node)));
}
_(src) \
_(dst)
-static int vxlan4_rewrite (vxlan_tunnel_t * t)
-{
- u8 *rw = 0;
- ip4_header_t * ip0;
- ip4_vxlan_header_t * h0;
- int len = sizeof (*h0);
-
- vec_validate_aligned (rw, len-1, CLIB_CACHE_LINE_BYTES);
-
- h0 = (ip4_vxlan_header_t *) rw;
-
- /* Fixed portion of the (outer) ip4 header */
- ip0 = &h0->ip4;
- ip0->ip_version_and_header_length = 0x45;
- ip0->ttl = 254;
- ip0->protocol = IP_PROTOCOL_UDP;
-
- /* we fix up the ip4 header length and checksum after-the-fact */
- ip0->src_address.as_u32 = t->src.ip4.as_u32;
- ip0->dst_address.as_u32 = t->dst.ip4.as_u32;
- ip0->checksum = ip4_header_checksum (ip0);
-
- /* UDP header, randomize src port on something, maybe? */
- h0->udp.src_port = clib_host_to_net_u16 (4789);
- h0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_vxlan);
-
- /* VXLAN header */
- vnet_set_vni_and_flags(&h0->vxlan, t->vni);
-
- t->rewrite = rw;
- return (0);
-}
-
-static int vxlan6_rewrite (vxlan_tunnel_t * t)
+static int
+vxlan_rewrite (vxlan_tunnel_t * t, bool is_ip6)
{
- u8 *rw = 0;
- ip6_header_t * ip0;
- ip6_vxlan_header_t * h0;
- int len = sizeof (*h0);
-
- vec_validate_aligned (rw, len-1, CLIB_CACHE_LINE_BYTES);
-
- h0 = (ip6_vxlan_header_t *) rw;
-
- /* Fixed portion of the (outer) ip6 header */
- ip0 = &h0->ip6;
- ip0->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32(6 << 28);
- ip0->hop_limit = 255;
- ip0->protocol = IP_PROTOCOL_UDP;
-
- ip0->src_address.as_u64[0] = t->src.ip6.as_u64[0];
- ip0->src_address.as_u64[1] = t->src.ip6.as_u64[1];
- ip0->dst_address.as_u64[0] = t->dst.ip6.as_u64[0];
- ip0->dst_address.as_u64[1] = t->dst.ip6.as_u64[1];
+ union {
+ ip4_vxlan_header_t * h4;
+ ip6_vxlan_header_t * h6;
+ u8 *rw;
+ } r = { .rw = 0 };
+ int len = is_ip6 ? sizeof *r.h6 : sizeof *r.h4;
+
+ vec_validate_aligned (r.rw, len-1, CLIB_CACHE_LINE_BYTES);
+
+ udp_header_t * udp;
+ vxlan_header_t * vxlan;
+ /* Fixed portion of the (outer) ip header */
+ if (!is_ip6)
+ {
+ ip4_header_t * ip = &r.h4->ip4;
+ udp = &r.h4->udp, vxlan = &r.h4->vxlan;
+ ip->ip_version_and_header_length = 0x45;
+ ip->ttl = 254;
+ ip->protocol = IP_PROTOCOL_UDP;
+
+ ip->src_address = t->src.ip4;
+ ip->dst_address = t->dst.ip4;
+
+ /* we fix up the ip4 header length and checksum after-the-fact */
+ ip->checksum = ip4_header_checksum (ip);
+ }
+ else
+ {
+ ip6_header_t * ip = &r.h6->ip6;
+ udp = &r.h6->udp, vxlan = &r.h6->vxlan;
+ ip->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32(6 << 28);
+ ip->hop_limit = 255;
+ ip->protocol = IP_PROTOCOL_UDP;
+
+ ip->src_address = t->src.ip6;
+ ip->dst_address = t->dst.ip6;
+ }
/* UDP header, randomize src port on something, maybe? */
- h0->udp.src_port = clib_host_to_net_u16 (4789);
- h0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_vxlan);
+ udp->src_port = clib_host_to_net_u16 (4789);
+ udp->dst_port = clib_host_to_net_u16 (UDP_DST_PORT_vxlan);
/* VXLAN header */
- vnet_set_vni_and_flags(&h0->vxlan, t->vni);
+ vnet_set_vni_and_flags(vxlan, t->vni);
- t->rewrite = rw;
+ t->rewrite = r.rw;
return (0);
}
-static int vxlan_check_decap_next(vxlan_main_t * vxm, u32 is_ip6, u32 decap_next_index)
+static bool
+vxlan_decap_next_is_valid (vxlan_main_t * vxm, u32 is_ip6, u32 decap_next_index)
{
vlib_main_t * vm = vxm->vlib_main;
- vlib_node_runtime_t *r;
+ u32 input_idx = (!is_ip6) ? vxlan4_input_node.index : vxlan6_input_node.index;
+ vlib_node_runtime_t *r = vlib_node_get_runtime (vm, input_idx);
- if(!is_ip6)
- {
- r = vlib_node_get_runtime (vm, vxlan4_input_node.index);
- if(decap_next_index >= r->n_next_nodes)
- return 1;
- }
- else
- {
- r = vlib_node_get_runtime (vm, vxlan6_input_node.index);
- if(decap_next_index >= r->n_next_nodes)
- return 1;
- }
-
- return 0;
-}
-
-static void
-hash_set_key_copy (uword ** h, void * key, uword v) {
- size_t ksz = hash_header(*h)->user;
- void * copy = clib_mem_alloc (ksz);
- clib_memcpy (copy, key, ksz);
- hash_set_mem (*h, copy, v);
-}
-
-static void
-hash_unset_key_free (uword ** h, void * key) {
- hash_pair_t * hp = hash_get_pair_mem (*h, key);
- ASSERT (hp);
- key = uword_to_pointer (hp->key, void *);
- hash_unset_mem (*h, key);
- clib_mem_free (key);
+ return decap_next_index < r->n_next_nodes;
}
static uword
return ++(*vtep);
ip46_address_is_ip4(ip) ?
hash_set (vxlan_main.vtep4, ip->ip4.as_u32, 1) :
- hash_set_key_copy (&vxlan_main.vtep6, &ip->ip6, 1);
+ hash_set_mem_alloc (&vxlan_main.vtep6, &ip->ip6, 1);
return 1;
}
return *vtep;
ip46_address_is_ip4(ip) ?
hash_unset (vxlan_main.vtep4, ip->ip4.as_u32) :
- hash_unset_key_free (&vxlan_main.vtep6, &ip->ip6);
+ hash_unset_mem_free (&vxlan_main.vtep6, &ip->ip6);
return 0;
}
.mfib_entry_index = mfei,
};
- hash_set_key_copy (&vxlan_main.mcast_shared, dst, new_ep.as_u64);
+ hash_set_mem_alloc (&vxlan_main.mcast_shared, dst, new_ep.as_u64);
}
static inline void
mfib_table_entry_delete_index(ep.mfib_entry_index,
MFIB_SOURCE_VXLAN);
- hash_unset_key_free (&vxlan_main.mcast_shared, dst);
+ hash_unset_mem_free (&vxlan_main.mcast_shared, dst);
+}
+
+static inline fib_protocol_t
+fib_ip_proto(bool is_ip6)
+{
+ return (is_ip6) ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4;
}
int vnet_vxlan_add_del_tunnel
}
else
{
- key6.src.as_u64[0] = a->dst.ip6.as_u64[0];
- key6.src.as_u64[1] = a->dst.ip6.as_u64[1];
+ key6.src = a->dst.ip6;
key6.vni = clib_host_to_net_u32 (a->vni << 8);
p = hash_get_mem (vxm->vxlan6_tunnel_by_key, &key6);
}
/*if not set explicitly, default to l2 */
if(a->decap_next_index == ~0)
a->decap_next_index = VXLAN_INPUT_NEXT_L2_INPUT;
- if (vxlan_check_decap_next(vxm, is_ip6, a->decap_next_index))
+ if (!vxlan_decap_next_is_valid(vxm, is_ip6, a->decap_next_index))
return VNET_API_ERROR_INVALID_DECAP_NEXT;
pool_get_aligned (vxm->tunnels, t, CLIB_CACHE_LINE_BYTES);
foreach_copy_field;
#undef _
- if (!is_ip6)
- rv = vxlan4_rewrite (t);
- else
- rv = vxlan6_rewrite (t);
-
+ rv = vxlan_rewrite (t, is_ip6);
if (rv)
{
pool_put (vxm->tunnels, t);
/* copy the key */
if (is_ip6)
- hash_set_key_copy (&vxm->vxlan6_tunnel_by_key, &key6, t - vxm->tunnels);
+ hash_set_mem_alloc (&vxm->vxlan6_tunnel_by_key, &key6,
+ t - vxm->tunnels);
else
hash_set (vxm->vxlan4_tunnel_by_key, key4.as_u64, t - vxm->tunnels);
l2im->configs[sw_if_index].feature_bitmap = L2INPUT_FEAT_DROP;
l2im->configs[sw_if_index].bd_index = 0;
+ vnet_sw_interface_t * si = vnet_get_sw_interface (vnm, sw_if_index);
+ si->flags &= ~VNET_SW_INTERFACE_FLAG_HIDDEN;
vnet_sw_interface_set_flags (vnm, sw_if_index,
VNET_SW_INTERFACE_FLAG_ADMIN_UP);
+
fib_node_init(&t->node, FIB_NODE_TYPE_VXLAN_TUNNEL);
fib_prefix_t tun_dst_pfx;
u32 encap_index = !is_ip6 ?
vtep_addr_ref(&t->src);
t->fib_entry_index = fib_table_entry_special_add
(t->encap_fib_index, &tun_dst_pfx, FIB_SOURCE_RR,
- FIB_ENTRY_FLAG_NONE, ADJ_INDEX_INVALID);
+ FIB_ENTRY_FLAG_NONE);
t->sibling_index = fib_entry_child_add
(t->fib_entry_index, FIB_NODE_TYPE_VXLAN_TUNNEL, t - vxm->tunnels);
vxlan_tunnel_restack_dpo(t);
* with different VNIs, create the output fib adjecency only if
* it does not already exist
*/
- fib_protocol_t fp = (is_ip6) ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4;
- dpo_id_t dpo = DPO_INVALID;
- mcast_shared_t ep;
+ fib_protocol_t fp = fib_ip_proto(is_ip6);
if (vtep_addr_ref(&t->dst) == 1)
{
fib_node_index_t mfei;
adj_index_t ai;
fib_route_path_t path = {
- .frp_proto = fp,
+ .frp_proto = fib_proto_to_dpo(fp),
.frp_addr = zero_addr,
.frp_sw_if_index = 0xffffffff,
.frp_fib_index = ~0,
mcast_shared_add(&t->dst, mfei, ai);
}
- ep = mcast_shared_get(&t->dst);
+ dpo_id_t dpo = DPO_INVALID;
+ mcast_shared_t ep = mcast_shared_get(&t->dst);
/* Stack shared mcast dst mac addr rewrite on encap */
- dpo_set (&dpo, DPO_ADJACENCY,
+ dpo_set (&dpo, DPO_ADJACENCY_MCAST,
fib_proto_to_dpo(fp),
ep.mcast_adj_index);
t = pool_elt_at_index (vxm->tunnels, p[0]);
+ sw_if_index = t->sw_if_index;
vnet_sw_interface_set_flags (vnm, t->sw_if_index, 0 /* down */);
+ vnet_sw_interface_t * si = vnet_get_sw_interface (vnm, t->sw_if_index);
+ si->flags |= VNET_SW_INTERFACE_FLAG_HIDDEN;
+
/* make sure tunnel is removed from l2 bd or xconnect */
set_int_l2_mode(vxm->vlib_main, vnm, MODE_L3, t->sw_if_index, 0, 0, 0, 0);
vec_add1 (vxm->free_vxlan_tunnel_hw_if_indices, t->hw_if_index);
if (!is_ip6)
hash_unset (vxm->vxlan4_tunnel_by_key, key4.as_u64);
else
- hash_unset_key_free (&vxm->vxlan6_tunnel_by_key, &key6);
+ hash_unset_mem_free (&vxm->vxlan6_tunnel_by_key, &key6);
if (!ip46_address_is_multicast(&t->dst))
{
return 0;
}
-static u32 fib4_index_from_fib_id (u32 fib_id)
-{
- ip4_main_t * im = &ip4_main;
- uword * p;
-
- p = hash_get (im->fib_index_by_table_id, fib_id);
- if (!p)
- return ~0;
-
- return p[0];
-}
-
-static u32 fib6_index_from_fib_id (u32 fib_id)
-{
- ip6_main_t * im = &ip6_main;
- uword * p;
-
- p = hash_get (im->fib_index_by_table_id, fib_id);
- if (!p)
- return ~0;
-
- return p[0];
-}
-
static uword get_decap_next_for_node(u32 node_index, u32 ipv4_set)
{
vxlan_main_t * vxm = &vxlan_main;
vlib_main_t * vm = vxm->vlib_main;
- uword next_index = ~0;
-
- if (ipv4_set)
- {
- next_index = vlib_node_add_next (vm, vxlan4_input_node.index, node_index);
- }
- else
- {
- next_index = vlib_node_add_next (vm, vxlan6_input_node.index, node_index);
- }
+ uword input_node = (ipv4_set) ? vxlan4_input_node.index :
+ vxlan6_input_node.index;
- return next_index;
+ return vlib_node_add_next (vm, input_node, node_index);
}
static uword unformat_decap_next (unformat_input_t * input, va_list * args)
int rv;
vnet_vxlan_add_del_tunnel_args_t _a, * a = &_a;
u32 tunnel_sw_if_index;
+ clib_error_t *error = NULL;
/* Cant "universally zero init" (={0}) due to GCC bug 53119 */
memset(&src, 0, sizeof src);
}
else if (unformat (line_input, "encap-vrf-id %d", &tmp))
{
- if (ipv6_set)
- encap_fib_index = fib6_index_from_fib_id (tmp);
- else
- encap_fib_index = fib4_index_from_fib_id (tmp);
+ encap_fib_index = fib_table_find (fib_ip_proto (ipv6_set), tmp);
if (encap_fib_index == ~0)
- return clib_error_return (0, "nonexistent encap-vrf-id %d", tmp);
+ {
+ error = clib_error_return (0, "nonexistent encap-vrf-id %d", tmp);
+ goto done;
+ }
}
else if (unformat (line_input, "decap-next %U", unformat_decap_next,
&decap_next_index, ipv4_set))
else if (unformat (line_input, "vni %d", &vni))
{
if (vni >> 24)
- return clib_error_return (0, "vni %d out of range", vni);
+ {
+ error = clib_error_return (0, "vni %d out of range", vni);
+ goto done;
+ }
}
else
- return clib_error_return (0, "parse error: '%U'",
- format_unformat_error, line_input);
+ {
+ error = clib_error_return (0, "parse error: '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
}
- unformat_free (line_input);
-
if (src_set == 0)
- return clib_error_return (0, "tunnel src address not specified");
+ {
+ error = clib_error_return (0, "tunnel src address not specified");
+ goto done;
+ }
if (dst_set == 0)
- return clib_error_return (0, "tunnel dst address not specified");
+ {
+ error = clib_error_return (0, "tunnel dst address not specified");
+ goto done;
+ }
if (grp_set && !ip46_address_is_multicast(&dst))
- return clib_error_return (0, "tunnel group address not multicast");
+ {
+ error = clib_error_return (0, "tunnel group address not multicast");
+ goto done;
+ }
if (grp_set == 0 && ip46_address_is_multicast(&dst))
- return clib_error_return (0, "dst address must be unicast");
+ {
+ error = clib_error_return (0, "dst address must be unicast");
+ goto done;
+ }
if (grp_set && mcast_sw_if_index == ~0)
- return clib_error_return (0, "tunnel nonexistent multicast device");
+ {
+ error = clib_error_return (0, "tunnel nonexistent multicast device");
+ goto done;
+ }
if (ipv4_set && ipv6_set)
- return clib_error_return (0, "both IPv4 and IPv6 addresses specified");
+ {
+ error = clib_error_return (0, "both IPv4 and IPv6 addresses specified");
+ goto done;
+ }
if (ip46_address_cmp(&src, &dst) == 0)
- return clib_error_return (0, "src and dst addresses are identical");
+ {
+ error = clib_error_return (0, "src and dst addresses are identical");
+ goto done;
+ }
if (decap_next_index == ~0)
- return clib_error_return (0, "next node not found");
+ {
+ error = clib_error_return (0, "next node not found");
+ goto done;
+ }
if (vni == 0)
- return clib_error_return (0, "vni not specified");
+ {
+ error = clib_error_return (0, "vni not specified");
+ goto done;
+ }
memset (a, 0, sizeof (*a));
break;
case VNET_API_ERROR_TUNNEL_EXIST:
- return clib_error_return (0, "tunnel already exists...");
+ error = clib_error_return (0, "tunnel already exists...");
+ goto done;
case VNET_API_ERROR_NO_SUCH_ENTRY:
- return clib_error_return (0, "tunnel does not exist...");
+ error = clib_error_return (0, "tunnel does not exist...");
+ goto done;
default:
- return clib_error_return
+ error = clib_error_return
(0, "vnet_vxlan_add_del_tunnel returned %d", rv);
+ goto done;
}
- return 0;
+done:
+ unformat_free (line_input);
+
+ return error;
}
/*?
vnet_int_vxlan_bypass_mode (sw_if_index, is_ip6, is_enable);
done:
+ unformat_free (line_input);
+
return error;
}