summaryrefslogtreecommitdiffstats
path: root/src/vnet/ipip
diff options
context:
space:
mode:
authorNeale Ranns <nranns@cisco.com>2019-12-29 23:55:18 +0000
committerDamjan Marion <dmarion@me.com>2020-01-27 20:40:30 +0000
commit14053c9dbd75182f5302f7388d17508f3930f7ce (patch)
tree527f7675cfe18b13cc7c1923cd7959ec80459a7c /src/vnet/ipip
parent59ff918ea5b86112ffc89054aa38107703354585 (diff)
ipip: Multi-point interface
Type: feature plus fixes for gre Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I0eca5f94b8b8ea0fcfb058162cafea4491708db6
Diffstat (limited to 'src/vnet/ipip')
-rw-r--r--src/vnet/ipip/ipip.api1
-rw-r--r--src/vnet/ipip/ipip.c322
-rw-r--r--src/vnet/ipip/ipip.h36
-rw-r--r--src/vnet/ipip/ipip_api.c9
-rw-r--r--src/vnet/ipip/ipip_cli.c57
-rw-r--r--src/vnet/ipip/node.c26
-rw-r--r--src/vnet/ipip/sixrd.c14
7 files changed, 386 insertions, 79 deletions
diff --git a/src/vnet/ipip/ipip.api b/src/vnet/ipip/ipip.api
index 8ba31363b17..4fbfa1d584e 100644
--- a/src/vnet/ipip/ipip.api
+++ b/src/vnet/ipip/ipip.api
@@ -67,6 +67,7 @@ typedef ipip_tunnel
details/dump */
u32 table_id;
vl_api_tunnel_encap_decap_flags_t flags;
+ vl_api_tunnel_mode_t mode;
vl_api_ip_dscp_t dscp; /* DSCP value for the tunnel encap,
ignored if ECNAP_COPY_DSCP flag is set */
};
diff --git a/src/vnet/ipip/ipip.c b/src/vnet/ipip/ipip.c
index 05460fbbe34..aa8d8daca4b 100644
--- a/src/vnet/ipip/ipip.c
+++ b/src/vnet/ipip/ipip.c
@@ -25,6 +25,7 @@
#include <vnet/fib/ip6_fib.h>
#include <vnet/ip/format.h>
#include <vnet/ipip/ipip.h>
+#include <vnet/nhrp/nhrp.h>
ipip_main_t ipip_main;
@@ -55,10 +56,14 @@ static u8 *
ipip_build_rewrite (vnet_main_t * vnm, u32 sw_if_index,
vnet_link_t link_type, const void *dst_address)
{
+ const ip46_address_t *dst;
ip4_header_t *ip4;
ip6_header_t *ip6;
u8 *rewrite = NULL;
- ipip_tunnel_t *t = ipip_tunnel_db_find_by_sw_if_index (sw_if_index);
+ ipip_tunnel_t *t;
+
+ dst = dst_address;
+ t = ipip_tunnel_db_find_by_sw_if_index (sw_if_index);
if (!t)
/* not one of ours */
@@ -73,12 +78,12 @@ ipip_build_rewrite (vnet_main_t * vnm, u32 sw_if_index,
ip4->ttl = 64;
/* fixup ip4 header length, protocol and checksum after-the-fact */
ip4->src_address.as_u32 = t->tunnel_src.ip4.as_u32;
- ip4->dst_address.as_u32 = t->tunnel_dst.ip4.as_u32;
- ip4->checksum = ip4_header_checksum (ip4);
+ ip4->dst_address.as_u32 = dst->ip4.as_u32;
if (!(t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP))
ip4_header_set_dscp (ip4, t->dscp);
if (t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_SET_DF)
ip4_header_set_df (ip4);
+ ip4->checksum = ip4_header_checksum (ip4);
break;
case IPIP_TRANSPORT_IP6:
@@ -90,15 +95,11 @@ ipip_build_rewrite (vnet_main_t * vnm, u32 sw_if_index,
/* fixup ip6 header length and protocol after-the-fact */
ip6->src_address.as_u64[0] = t->tunnel_src.ip6.as_u64[0];
ip6->src_address.as_u64[1] = t->tunnel_src.ip6.as_u64[1];
- ip6->dst_address.as_u64[0] = t->tunnel_dst.ip6.as_u64[0];
- ip6->dst_address.as_u64[1] = t->tunnel_dst.ip6.as_u64[1];
+ ip6->dst_address.as_u64[0] = dst->ip6.as_u64[0];
+ ip6->dst_address.as_u64[1] = dst->ip6.as_u64[1];
if (!(t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP))
ip6_set_dscp_network_order (ip6, t->dscp);
break;
-
- default:
- /* pass through */
- ;
}
return (rewrite);
}
@@ -107,8 +108,10 @@ static void
ipip4_fixup (vlib_main_t * vm, const ip_adjacency_t * adj, vlib_buffer_t * b,
const void *data)
{
+ tunnel_encap_decap_flags_t flags;
ip4_header_t *ip4;
- const ipip_tunnel_t *t = data;
+
+ flags = pointer_to_uword (data);
ip4 = vlib_buffer_get_current (b);
ip4->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b));
@@ -116,11 +119,11 @@ ipip4_fixup (vlib_main_t * vm, const ip_adjacency_t * adj, vlib_buffer_t * b,
{
case VNET_LINK_IP6:
ip4->protocol = IP_PROTOCOL_IPV6;
- if (t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
+ if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
ip4_header_set_dscp (ip4,
ip6_dscp_network_order ((ip6_header_t *) (ip4 +
1)));
- if (t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
+ if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
ip4_header_set_ecn (ip4,
ip6_ecn_network_order ((ip6_header_t *) (ip4 +
1)));
@@ -128,11 +131,11 @@ ipip4_fixup (vlib_main_t * vm, const ip_adjacency_t * adj, vlib_buffer_t * b,
case VNET_LINK_IP4:
ip4->protocol = IP_PROTOCOL_IP_IN_IP;
- if (t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
+ if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
ip4_header_set_dscp (ip4, ip4_header_get_dscp (ip4 + 1));
- if (t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
+ if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
ip4_header_set_ecn (ip4, ip4_header_get_ecn (ip4 + 1));
- if ((t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DF) &&
+ if ((flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DF) &&
ip4_header_get_df (ip4 + 1))
ip4_header_set_df (ip4);
break;
@@ -148,8 +151,10 @@ static void
ipip6_fixup (vlib_main_t * vm, const ip_adjacency_t * adj, vlib_buffer_t * b,
const void *data)
{
+ tunnel_encap_decap_flags_t flags;
ip6_header_t *ip6;
- const ipip_tunnel_t *t = data;
+
+ flags = pointer_to_uword (data);
/* Must set locally originated otherwise we're not allowed to
fragment the packet later */
@@ -163,18 +168,18 @@ ipip6_fixup (vlib_main_t * vm, const ip_adjacency_t * adj, vlib_buffer_t * b,
{
case VNET_LINK_IP6:
ip6->protocol = IP_PROTOCOL_IPV6;
- if (t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
+ if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
ip6_set_dscp_network_order (ip6, ip6_dscp_network_order (ip6 + 1));
- if (t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
+ if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
ip6_set_ecn_network_order (ip6, ip6_ecn_network_order (ip6 + 1));
break;
case VNET_LINK_IP4:
ip6->protocol = IP_PROTOCOL_IP_IN_IP;
- if (t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
+ if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
ip6_set_dscp_network_order
(ip6, ip4_header_get_dscp ((ip4_header_t *) (ip6 + 1)));
- if (t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
+ if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
ip6_set_ecn_network_order
(ip6, ip4_header_get_ecn ((ip4_header_t *) (ip6 + 1)));
break;
@@ -257,14 +262,89 @@ ipip_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai)
if (VNET_LINK_ETHERNET == adj_get_link_type (ai))
af |= ADJ_FLAG_MIDCHAIN_NO_COUNT;
- adj_nbr_midchain_update_rewrite (ai, f, t, af,
- ipip_build_rewrite (vnm,
- sw_if_index,
- adj_get_link_type
- (ai), NULL));
+ adj_nbr_midchain_update_rewrite
+ (ai, f, uword_to_pointer (t->flags, void *), af,
+ ipip_build_rewrite (vnm, sw_if_index,
+ adj_get_link_type (ai), &t->tunnel_dst));
ipip_tunnel_stack (ai);
}
+typedef struct mipip_walk_ctx_t_
+{
+ const ipip_tunnel_t *t;
+ const nhrp_entry_t *ne;
+} mipip_walk_ctx_t;
+
+static adj_walk_rc_t
+mipip_mk_complete_walk (adj_index_t ai, void *data)
+{
+ mipip_walk_ctx_t *ctx = data;
+ adj_midchain_fixup_t f;
+
+ f = ctx->t->transport == IPIP_TRANSPORT_IP6 ? ipip6_fixup : ipip4_fixup;
+
+ adj_nbr_midchain_update_rewrite
+ (ai, f, uword_to_pointer (ctx->t->flags, void *),
+ ADJ_FLAG_MIDCHAIN_IP_STACK, ipip_build_rewrite (vnet_get_main (),
+ ctx->t->sw_if_index,
+ adj_get_link_type (ai),
+ &nhrp_entry_get_nh
+ (ctx->ne)->fp_addr));
+
+ nhrp_entry_adj_stack (ctx->ne, ai);
+
+ return (ADJ_WALK_RC_CONTINUE);
+}
+
+static adj_walk_rc_t
+mipip_mk_incomplete_walk (adj_index_t ai, void *data)
+{
+ ipip_tunnel_t *t = data;
+ adj_midchain_fixup_t f;
+
+ f = t->transport == IPIP_TRANSPORT_IP6 ? ipip6_fixup : ipip4_fixup;
+
+ adj_nbr_midchain_update_rewrite (ai, f, NULL, ADJ_FLAG_NONE, NULL);
+
+ adj_midchain_delegate_unstack (ai);
+
+ return (ADJ_WALK_RC_CONTINUE);
+}
+
+void
+mipip_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai)
+{
+ ipip_main_t *gm = &ipip_main;
+ adj_midchain_fixup_t f;
+ ip_adjacency_t *adj;
+ nhrp_entry_t *ne;
+ ipip_tunnel_t *t;
+ u32 ti;
+
+ adj = adj_get (ai);
+ ti = gm->tunnel_index_by_sw_if_index[sw_if_index];
+ t = pool_elt_at_index (gm->tunnels, ti);
+ f = t->transport == IPIP_TRANSPORT_IP6 ? ipip6_fixup : ipip4_fixup;
+
+ ne = nhrp_entry_find (sw_if_index, &adj->sub_type.nbr.next_hop);
+
+ if (NULL == ne)
+ {
+ // no NHRP entry to provide the next-hop
+ adj_nbr_midchain_update_rewrite
+ (ai, f, uword_to_pointer (t->flags, void *), ADJ_FLAG_NONE, NULL);
+ return;
+ }
+
+ mipip_walk_ctx_t ctx = {
+ .t = t,
+ .ne = ne
+ };
+ adj_nbr_walk_nh (sw_if_index,
+ adj->ia_nh_proto,
+ &adj->sub_type.nbr.next_hop, mipip_mk_complete_walk, &ctx);
+}
+
static u8 *
format_ipip_tunnel_name (u8 * s, va_list * args)
{
@@ -350,10 +430,19 @@ VNET_HW_INTERFACE_CLASS(ipip_hw_interface_class) = {
.update_adjacency = ipip_update_adj,
.flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P,
};
+
+VNET_HW_INTERFACE_CLASS(mipip_hw_interface_class) = {
+ .name = "mIPIP",
+ //.format_header = format_ipip_header_with_length,
+ //.unformat_header = unformat_ipip_header,
+ .build_rewrite = ipip_build_rewrite,
+ .update_adjacency = mipip_update_adj,
+ .flags = VNET_HW_INTERFACE_CLASS_FLAG_NBMA,
+};
/* *INDENT-ON* */
ipip_tunnel_t *
-ipip_tunnel_db_find (ipip_tunnel_key_t * key)
+ipip_tunnel_db_find (const ipip_tunnel_key_t * key)
{
ipip_main_t *gm = &ipip_main;
uword *p;
@@ -377,30 +466,155 @@ ipip_tunnel_db_find_by_sw_if_index (u32 sw_if_index)
}
void
-ipip_tunnel_db_add (ipip_tunnel_t * t, ipip_tunnel_key_t * key)
+ipip_tunnel_db_add (ipip_tunnel_t * t, const ipip_tunnel_key_t * key)
{
ipip_main_t *gm = &ipip_main;
- t->key = clib_mem_alloc (sizeof (*t->key));
- clib_memcpy (t->key, key, sizeof (*key));
- hash_set_mem (gm->tunnel_by_key, t->key, t->dev_instance);
+ hash_set_mem_alloc (&gm->tunnel_by_key, key, t->dev_instance);
}
void
-ipip_tunnel_db_remove (ipip_tunnel_t * t)
+ipip_tunnel_db_remove (ipip_tunnel_t * t, const ipip_tunnel_key_t * key)
{
ipip_main_t *gm = &ipip_main;
- hash_unset_mem (gm->tunnel_by_key, t->key);
- clib_mem_free (t->key);
- t->key = NULL;
+ hash_unset_mem_free (&gm->tunnel_by_key, key);
+}
+
+void
+ipip_mk_key_i (ipip_transport_t transport,
+ ipip_mode_t mode,
+ const ip46_address_t * src,
+ const ip46_address_t * dst,
+ u32 fib_index, ipip_tunnel_key_t * key)
+{
+ key->transport = transport;
+ key->mode = mode;
+ key->src = *src;
+ key->dst = *dst;
+ key->fib_index = fib_index;
+ key->__pad = 0;;
+}
+
+void
+ipip_mk_key (const ipip_tunnel_t * t, ipip_tunnel_key_t * key)
+{
+ ipip_mk_key_i (t->transport, t->mode,
+ &t->tunnel_src, &t->tunnel_dst, t->fib_index, key);
+}
+
+static void
+ipip_nhrp_mk_key (const ipip_tunnel_t * t,
+ const nhrp_entry_t * ne, ipip_tunnel_key_t * key)
+{
+ const fib_prefix_t *nh;
+
+ nh = nhrp_entry_get_nh (ne);
+
+ /* construct the key using mode P2P so it can be found in the DP */
+ ipip_mk_key_i (t->transport, IPIP_MODE_P2P,
+ &t->tunnel_src, &nh->fp_addr,
+ nhrp_entry_get_fib_index (ne), key);
+}
+
+static void
+ipip_nhrp_entry_added (const nhrp_entry_t * ne)
+{
+ ipip_main_t *gm = &ipip_main;
+ const ip46_address_t *nh;
+ ipip_tunnel_key_t key;
+ ipip_tunnel_t *t;
+ u32 sw_if_index;
+ u32 t_idx;
+
+ sw_if_index = nhrp_entry_get_sw_if_index (ne);
+ if (vec_len (gm->tunnel_index_by_sw_if_index) < sw_if_index)
+ return;
+
+ t_idx = gm->tunnel_index_by_sw_if_index[sw_if_index];
+
+ if (INDEX_INVALID == t_idx)
+ return;
+
+ t = pool_elt_at_index (gm->tunnels, t_idx);
+
+ ipip_nhrp_mk_key (t, ne, &key);
+ ipip_tunnel_db_add (t, &key);
+
+ // update the rewrites for each of the adjacencies for this next-hop
+ mipip_walk_ctx_t ctx = {
+ .t = t,
+ .ne = ne
+ };
+ nh = nhrp_entry_get_peer (ne);
+ adj_nbr_walk_nh (nhrp_entry_get_sw_if_index (ne),
+ (ip46_address_is_ip4 (nh) ?
+ FIB_PROTOCOL_IP4 :
+ FIB_PROTOCOL_IP6), nh, mipip_mk_complete_walk, &ctx);
+}
+
+static void
+ipip_nhrp_entry_deleted (const nhrp_entry_t * ne)
+{
+ ipip_main_t *gm = &ipip_main;
+ const ip46_address_t *nh;
+ ipip_tunnel_key_t key;
+ ipip_tunnel_t *t;
+ u32 sw_if_index;
+ u32 t_idx;
+
+ sw_if_index = nhrp_entry_get_sw_if_index (ne);
+ if (vec_len (gm->tunnel_index_by_sw_if_index) < sw_if_index)
+ return;
+
+ t_idx = gm->tunnel_index_by_sw_if_index[sw_if_index];
+
+ if (INDEX_INVALID == t_idx)
+ return;
+
+ t = pool_elt_at_index (gm->tunnels, t_idx);
+
+ ipip_nhrp_mk_key (t, ne, &key);
+ ipip_tunnel_db_remove (t, &key);
+
+ nh = nhrp_entry_get_peer (ne);
+
+ /* make all the adjacencies incomplete */
+ adj_nbr_walk_nh (nhrp_entry_get_sw_if_index (ne),
+ (ip46_address_is_ip4 (nh) ?
+ FIB_PROTOCOL_IP4 :
+ FIB_PROTOCOL_IP6), nh, mipip_mk_incomplete_walk, t);
+}
+
+static walk_rc_t
+ipip_tunnel_delete_nhrp_walk (index_t nei, void *ctx)
+{
+ ipip_tunnel_t *t = ctx;
+ ipip_tunnel_key_t key;
+
+ ipip_nhrp_mk_key (t, nhrp_entry_get (nei), &key);
+ ipip_tunnel_db_remove (t, &key);
+
+ return (WALK_CONTINUE);
+}
+
+static walk_rc_t
+ipip_tunnel_add_nhrp_walk (index_t nei, void *ctx)
+{
+ ipip_tunnel_t *t = ctx;
+ ipip_tunnel_key_t key;
+
+ ipip_nhrp_mk_key (t, nhrp_entry_get (nei), &key);
+ ipip_tunnel_db_add (t, &key);
+
+ return (WALK_CONTINUE);
}
int
ipip_add_tunnel (ipip_transport_t transport,
u32 instance, ip46_address_t * src, ip46_address_t * dst,
u32 fib_index, tunnel_encap_decap_flags_t flags,
- ip_dscp_t dscp, u32 * sw_if_indexp)
+ ip_dscp_t dscp, tunnel_mode_t tmode, u32 * sw_if_indexp)
{
ipip_main_t *gm = &ipip_main;
vnet_main_t *vnm = gm->vnet_main;
@@ -409,11 +623,15 @@ ipip_add_tunnel (ipip_transport_t transport,
ipip_tunnel_t *t;
vnet_hw_interface_t *hi;
u32 hw_if_index, sw_if_index;
- ipip_tunnel_key_t key = {.transport = transport,
- .fib_index = fib_index,
- .src = *src,
- .dst = *dst
- };
+ ipip_tunnel_key_t key;
+ ipip_mode_t mode;
+
+ if (tmode == TUNNEL_MODE_MP && !ip46_address_is_zero (dst))
+ return (VNET_API_ERROR_INVALID_DST_ADDRESS);
+
+ mode = (tmode == TUNNEL_MODE_P2P ? IPIP_MODE_P2P : IPIP_MODE_P2MP);
+ ipip_mk_key_i (transport, mode, src, dst, fib_index, &key);
+
t = ipip_tunnel_db_find (&key);
if (t)
{
@@ -441,12 +659,15 @@ ipip_add_tunnel (ipip_transport_t transport,
t->user_instance = u_idx; /* name */
hw_if_index = vnet_register_interface (vnm, ipip_device_class.index, t_idx,
- ipip_hw_interface_class.index,
+ (mode == IPIP_MODE_P2P ?
+ ipip_hw_interface_class.index :
+ mipip_hw_interface_class.index),
t_idx);
hi = vnet_get_hw_interface (vnm, hw_if_index);
sw_if_index = hi->sw_if_index;
+ t->mode = mode;
t->hw_if_index = hw_if_index;
t->fib_index = fib_index;
t->sw_if_index = sw_if_index;
@@ -476,6 +697,9 @@ ipip_add_tunnel (ipip_transport_t transport,
ipip_tunnel_db_add (t, &key);
+ if (t->mode == IPIP_MODE_P2MP)
+ nhrp_walk_itf (t->sw_if_index, ipip_tunnel_add_nhrp_walk, t);
+
if (sw_if_indexp)
*sw_if_indexp = sw_if_index;
@@ -500,22 +724,32 @@ ipip_del_tunnel (u32 sw_if_index)
ipip_main_t *gm = &ipip_main;
vnet_main_t *vnm = gm->vnet_main;
ipip_tunnel_t *t;
-
+ ipip_tunnel_key_t key;
t = ipip_tunnel_db_find_by_sw_if_index (sw_if_index);
if (t == NULL)
return VNET_API_ERROR_NO_SUCH_ENTRY;
+ if (t->mode == IPIP_MODE_P2MP)
+ nhrp_walk_itf (t->sw_if_index, ipip_tunnel_delete_nhrp_walk, t);
+
vnet_sw_interface_set_flags (vnm, sw_if_index, 0 /* down */ );
gm->tunnel_index_by_sw_if_index[sw_if_index] = ~0;
vnet_delete_hw_interface (vnm, t->hw_if_index);
hash_unset (gm->instance_used, t->user_instance);
- ipip_tunnel_db_remove (t);
+
+ ipip_mk_key (t, &key);
+ ipip_tunnel_db_remove (t, &key);
pool_put (gm->tunnels, t);
return 0;
}
+const static nhrp_vft_t ipip_nhrp_vft = {
+ .nv_added = ipip_nhrp_entry_added,
+ .nv_deleted = ipip_nhrp_entry_deleted,
+};
+
static clib_error_t *
ipip_init (vlib_main_t * vm)
{
@@ -527,6 +761,8 @@ ipip_init (vlib_main_t * vm)
gm->tunnel_by_key =
hash_create_mem (0, sizeof (ipip_tunnel_key_t), sizeof (uword));
+ nhrp_register (&ipip_nhrp_vft);
+
return 0;
}
diff --git a/src/vnet/ipip/ipip.h b/src/vnet/ipip/ipip.h
index a3732f75128..fef5aab0490 100644
--- a/src/vnet/ipip/ipip.h
+++ b/src/vnet/ipip/ipip.h
@@ -48,21 +48,26 @@ typedef enum
{
IPIP_TRANSPORT_IP4,
IPIP_TRANSPORT_IP6,
-} ipip_transport_t;
+} __clib_packed ipip_transport_t;
+
+typedef enum
+{
+ IPIP_MODE_P2P = 0,
+ IPIP_MODE_P2MP,
+ IPIP_MODE_6RD,
+} __clib_packed ipip_mode_t;
typedef struct
{
ip46_address_t src;
ip46_address_t dst;
- ipip_transport_t transport;
u32 fib_index;
-} __attribute__ ((packed)) ipip_tunnel_key_t;
+ ipip_transport_t transport;
+ ipip_mode_t mode;
+ u16 __pad;
+} __clib_packed ipip_tunnel_key_t;
-typedef enum
-{
- IPIP_MODE_P2P = 0,
- IPIP_MODE_6RD,
-} ipip_mode_t;
+STATIC_ASSERT_SIZEOF (ipip_tunnel_key_t, 5 * sizeof (u64));
/**
* @brief A representation of a IPIP tunnel
@@ -74,7 +79,6 @@ typedef struct
ipip_mode_t mode;
ipip_transport_t transport;
- ipip_tunnel_key_t *key;
ip46_address_t tunnel_src;
ip46_address_t tunnel_dst;
u32 fib_index;
@@ -145,7 +149,7 @@ sixrd_get_addr_net (const ipip_tunnel_t * t, u64 dal)
int ipip_add_tunnel (ipip_transport_t transport, u32 instance,
ip46_address_t * src, ip46_address_t * dst,
u32 fib_index, tunnel_encap_decap_flags_t flags,
- ip_dscp_t dscp, u32 * sw_if_indexp);
+ ip_dscp_t dscp, tunnel_mode_t mode, u32 * sw_if_indexp);
int ipip_del_tunnel (u32 sw_if_index);
int sixrd_add_tunnel (ip6_address_t * ip6_prefix, u8 ip6_prefix_len,
ip4_address_t * ip4_prefix, u8 ip4_prefix_len,
@@ -153,10 +157,16 @@ int sixrd_add_tunnel (ip6_address_t * ip6_prefix, u8 ip6_prefix_len,
u32 ip4_fib_index, u32 ip6_fib_index,
u32 * sw_if_index);
int sixrd_del_tunnel (u32 sw_if_index);
-void ipip_tunnel_db_add (ipip_tunnel_t * t, ipip_tunnel_key_t * key);
-void ipip_tunnel_db_remove (ipip_tunnel_t * t);
-ipip_tunnel_t *ipip_tunnel_db_find (ipip_tunnel_key_t * key);
+void ipip_tunnel_db_add (ipip_tunnel_t * t, const ipip_tunnel_key_t * key);
+void ipip_tunnel_db_remove (ipip_tunnel_t * t, const ipip_tunnel_key_t * key);
+ipip_tunnel_t *ipip_tunnel_db_find (const ipip_tunnel_key_t * key);
ipip_tunnel_t *ipip_tunnel_db_find_by_sw_if_index (u32 sw_if_index);
+void ipip_mk_key (const ipip_tunnel_t * t, ipip_tunnel_key_t * key);
+void ipip_mk_key_i (ipip_transport_t transport,
+ ipip_mode_t mode,
+ const ip46_address_t * src,
+ const ip46_address_t * dst,
+ u32 fib_index, ipip_tunnel_key_t * key);
#endif
diff --git a/src/vnet/ipip/ipip_api.c b/src/vnet/ipip/ipip_api.c
index 4f6aa7f3dbe..97fff156d35 100644
--- a/src/vnet/ipip/ipip_api.c
+++ b/src/vnet/ipip/ipip_api.c
@@ -40,6 +40,7 @@ vl_api_ipip_add_tunnel_t_handler (vl_api_ipip_add_tunnel_t * mp)
tunnel_encap_decap_flags_t flags;
ip46_address_t src, dst;
ip46_type_t itype[2];
+ tunnel_mode_t mode;
itype[0] = ip_address_decode (&mp->tunnel.src, &src);
itype[1] = ip_address_decode (&mp->tunnel.dst, &dst);
@@ -61,6 +62,11 @@ vl_api_ipip_add_tunnel_t_handler (vl_api_ipip_add_tunnel_t * mp)
if (rv)
goto out;
+ rv = tunnel_mode_decode (mp->tunnel.mode, &mode);
+
+ if (rv)
+ goto out;
+
fib_index = fib_table_find (fib_proto_from_ip46 (itype[0]),
ntohl (mp->tunnel.table_id));
@@ -75,7 +81,8 @@ vl_api_ipip_add_tunnel_t_handler (vl_api_ipip_add_tunnel_t * mp)
IPIP_TRANSPORT_IP4),
ntohl (mp->tunnel.instance), &src, &dst,
fib_index, flags,
- ip_dscp_decode (mp->tunnel.dscp), &sw_if_index);
+ ip_dscp_decode (mp->tunnel.dscp), mode,
+ &sw_if_index);
}
out:
diff --git a/src/vnet/ipip/ipip_cli.c b/src/vnet/ipip/ipip_cli.c
index 09f2ebae228..d3410558271 100644
--- a/src/vnet/ipip/ipip_cli.c
+++ b/src/vnet/ipip/ipip_cli.c
@@ -31,6 +31,7 @@ static clib_error_t *create_ipip_tunnel_command_fn(vlib_main_t *vm,
u32 sw_if_index;
clib_error_t *error = NULL;
bool ip4_set = false, ip6_set = false;
+ tunnel_mode_t mode = TUNNEL_MODE_P2P;
/* Get a line of input. */
if (!unformat_user(input, unformat_line_input, line_input))
@@ -51,6 +52,8 @@ static clib_error_t *create_ipip_tunnel_command_fn(vlib_main_t *vm,
} else if (unformat(line_input, "dst %U", unformat_ip6_address, &dst.ip6)) {
num_m_args++;
ip6_set = true;
+ } else if (unformat(line_input, "%U", unformat_tunnel_mode, &mode)) {
+ num_m_args++;
} else if (unformat(line_input, "outer-table-id %d", &table_id))
;
else {
@@ -84,6 +87,7 @@ static clib_error_t *create_ipip_tunnel_command_fn(vlib_main_t *vm,
fib_index,
TUNNEL_ENCAP_DECAP_FLAG_NONE,
IP_DSCP_CS0,
+ mode,
&sw_if_index);
}
@@ -104,6 +108,9 @@ static clib_error_t *create_ipip_tunnel_command_fn(vlib_main_t *vm,
case VNET_API_ERROR_INSTANCE_IN_USE:
error = clib_error_return(0, "Instance is in use");
goto done;
+ case VNET_API_ERROR_INVALID_DST_ADDRESS:
+ error = clib_error_return(0, "destination IP address when mode is multi-point");
+ goto done;
default:
error = clib_error_return(0, "vnet_ipip_add_del_tunnel returned %d", rv);
goto done;
@@ -182,12 +189,16 @@ static u8 *format_ipip_tunnel(u8 *s, va_list *args) {
format_ip6_address, &t->sixrd.ip6_prefix, t->sixrd.ip6_prefix_len);
break;
case IPIP_MODE_P2P:
- default:
s = format(s, "[%d] instance %d src %U dst %U ",
t->dev_instance, t->user_instance,
format_ip46_address, &t->tunnel_src, type,
format_ip46_address, &t->tunnel_dst, type);
break;
+ case IPIP_MODE_P2MP:
+ s = format(s, "[%d] instance %d p2mp src %U ",
+ t->dev_instance, t->user_instance,
+ format_ip46_address, &t->tunnel_src, type);
+ break;
}
s = format(s, "table-ID %d sw-if-idx %d flags [%U] dscp %U",
@@ -235,6 +246,50 @@ VLIB_CLI_COMMAND(show_ipip_tunnel_command, static) = {
};
/* *INDENT-ON* */
+static u8 *
+format_ipip_tunnel_key (u8 *s, va_list *args)
+{
+ ipip_tunnel_key_t *t = va_arg(*args, ipip_tunnel_key_t *);
+
+ s = format (s, "src:%U dst:%U fib:%d transport:%d mode:%d",
+ format_ip46_address, &t->src, IP46_TYPE_ANY,
+ format_ip46_address, &t->dst, IP46_TYPE_ANY,
+ t->fib_index, t->transport, t->mode);
+
+ return (s);
+}
+
+static clib_error_t *
+ipip_tunnel_hash_show (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ ipip_main_t *im = &ipip_main;
+ ipip_tunnel_key_t *key;
+ u32 index;
+
+ /* *INDENT-OFF* */
+ hash_foreach(key, index, im->tunnel_by_key,
+ ({
+ vlib_cli_output (vm, " %U -> %d", format_ipip_tunnel_key, key, index);
+ }));
+ /* *INDENT-ON* */
+
+ return NULL;
+}
+
+/**
+ * show IPSEC tunnel protection hash tables
+ */
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (ipip_tunnel_hash_show_node, static) =
+{
+ .path = "show ipip tunnel-hash",
+ .function = ipip_tunnel_hash_show,
+ .short_help = "show ipip tunnel-hash",
+};
+/* *INDENT-ON* */
+
static clib_error_t *create_sixrd_tunnel_command_fn(vlib_main_t *vm,
unformat_input_t *input,
vlib_cli_command_t *cmd) {
diff --git a/src/vnet/ipip/node.c b/src/vnet/ipip/node.c
index bc0250ad6ef..0f47f2636db 100644
--- a/src/vnet/ipip/node.c
+++ b/src/vnet/ipip/node.c
@@ -83,9 +83,6 @@ ipip_input (vlib_main_t * vm, vlib_node_runtime_t * node,
ip4_header_t *ip40;
ip6_header_t *ip60;
u32 next0 = IPIP_INPUT_NEXT_DROP;
- ip46_address_t src0 = ip46_address_initializer, dst0 =
- ip46_address_initializer;
- ipip_transport_t transport0;
u8 inner_protocol0;
bi0 = to_next[0] = from[0];
@@ -96,6 +93,11 @@ ipip_input (vlib_main_t * vm, vlib_node_runtime_t * node,
b0 = vlib_get_buffer (vm, bi0);
+ ipip_tunnel_key_t key0 = {
+ .fib_index = vnet_buffer (b0)->ip.fib_index,
+ .mode = IPIP_MODE_P2P,
+ };
+
if (is_ipv6)
{
ip60 = vlib_buffer_get_current (b0);
@@ -108,10 +110,10 @@ ipip_input (vlib_main_t * vm, vlib_node_runtime_t * node,
}
vlib_buffer_advance (b0, sizeof (*ip60));
- ip_set (&src0, &ip60->src_address, false);
- ip_set (&dst0, &ip60->dst_address, false);
+ ip_set (&key0.dst, &ip60->src_address, false);
+ ip_set (&key0.src, &ip60->dst_address, false);
inner_protocol0 = ip60->protocol;
- transport0 = IPIP_TRANSPORT_IP6;
+ key0.transport = IPIP_TRANSPORT_IP6;
}
else
{
@@ -125,25 +127,21 @@ ipip_input (vlib_main_t * vm, vlib_node_runtime_t * node,
goto drop;
}
vlib_buffer_advance (b0, sizeof (*ip40));
- ip_set (&src0, &ip40->src_address, true);
- ip_set (&dst0, &ip40->dst_address, true);
+ ip_set (&key0.dst, &ip40->src_address, true);
+ ip_set (&key0.src, &ip40->dst_address, true);
inner_protocol0 = ip40->protocol;
- transport0 = IPIP_TRANSPORT_IP4;
+ key0.transport = IPIP_TRANSPORT_IP4;
}
/*
* Find tunnel. First a lookup for P2P tunnels, then a lookup
* for multipoint tunnels
*/
- ipip_tunnel_key_t key0 = {.transport = transport0,
- .fib_index = vnet_buffer (b0)->ip.fib_index,
- .src = dst0,
- .dst = src0
- };
ipip_tunnel_t *t0 = ipip_tunnel_db_find (&key0);
if (!t0)
{
ip46_address_reset (&key0.dst);
+ key0.mode = IPIP_MODE_6RD;
t0 = ipip_tunnel_db_find (&key0);
if (!t0)
{
diff --git a/src/vnet/ipip/sixrd.c b/src/vnet/ipip/sixrd.c
index 04df0eeabe5..492b4f83260 100644
--- a/src/vnet/ipip/sixrd.c
+++ b/src/vnet/ipip/sixrd.c
@@ -283,12 +283,10 @@ sixrd_add_tunnel (ip6_address_t * ip6_prefix, u8 ip6_prefix_len,
ip46_address_t src = ip46_address_initializer, dst =
ip46_address_initializer;
ip_set (&src, ip4_src, true);
- ipip_tunnel_key_t key = {
- .transport = IPIP_TRANSPORT_IP4,
- .fib_index = ip4_fib_index,
- .src = src,
- .dst = dst
- };
+ ipip_tunnel_key_t key;
+
+ ipip_mk_key_i (IPIP_TRANSPORT_IP4, IPIP_MODE_6RD, &src, &dst, ip4_fib_index,
+ &key);
t = ipip_tunnel_db_find (&key);
if (t)
@@ -377,6 +375,7 @@ sixrd_del_tunnel (u32 sw_if_index)
{
ipip_main_t *gm = &ipip_main;
ipip_tunnel_t *t = ipip_tunnel_db_find_by_sw_if_index (sw_if_index);
+ ipip_tunnel_key_t key;
if (!t)
{
@@ -408,7 +407,8 @@ sixrd_del_tunnel (u32 sw_if_index)
gm->tunnel_index_by_sw_if_index[t->sw_if_index] = ~0;
vnet_delete_hw_interface (vnet_get_main (), t->hw_if_index);
- ipip_tunnel_db_remove (t);
+ ipip_mk_key (t, &key);
+ ipip_tunnel_db_remove (t, &key);
pool_put (gm->tunnels, t);
return 0;