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-rw-r--r--src/vnet/gre/gre.h89
-rw-r--r--src/vnet/gre/interface.c133
-rw-r--r--src/vnet/gre/node.c13
-rw-r--r--src/vnet/nhrp/nhrp.c71
-rw-r--r--src/vnet/nhrp/nhrp.h43
-rw-r--r--src/vnet/nhrp/nhrp_api.c12
-rw-r--r--test/test_gre.py83
7 files changed, 355 insertions, 89 deletions
diff --git a/src/vnet/gre/gre.h b/src/vnet/gre/gre.h
index 11bcddd51b3..6989cf48ea0 100644
--- a/src/vnet/gre/gre.h
+++ b/src/vnet/gre/gre.h
@@ -96,6 +96,26 @@ typedef struct
} gre_protocol_info_t;
/**
+ * Elements of the GRE key that are common for v6 and v6 addresses
+ */
+typedef struct gre_tunnel_key_common_t_
+{
+ union
+ {
+ struct
+ {
+ u32 fib_index;
+ u16 session_id;
+ gre_tunnel_type_t type;
+ gre_tunnel_mode_t mode;
+ };
+ u64 as_u64;
+ };
+} gre_tunnel_key_common_t;
+
+STATIC_ASSERT_SIZEOF (gre_tunnel_key_common_t, sizeof (u64));
+
+/**
* @brief Key for a IPv4 GRE Tunnel
*/
typedef struct gre_tunnel_key4_t_
@@ -113,15 +133,12 @@ typedef struct gre_tunnel_key4_t_
u64 gtk_as_u64;
};
- /**
- * FIB table index, ERSPAN session ID and tunnel type in u32 bit fields:
- * - The FIB table index the src,dst addresses are in, top 20 bits
- * - The Session ID for ERSPAN tunnel type and 0 otherwise, next 10 bits
- * - Tunnel type, bottom 2 bits
- */
- u32 gtk_fidx_ssid_type;
+ /** address independent attributes */
+ gre_tunnel_key_common_t gtk_common;
} __attribute__ ((packed)) gre_tunnel_key4_t;
+STATIC_ASSERT_SIZEOF (gre_tunnel_key4_t, 2 * sizeof (u64));
+
/**
* @brief Key for a IPv6 GRE Tunnel
* We use a different type so that the V4 key hash is as small as possible
@@ -134,22 +151,11 @@ typedef struct gre_tunnel_key6_t_
ip6_address_t gtk_src;
ip6_address_t gtk_dst;
- /**
- * FIB table index, ERSPAN session ID and tunnel type in u32 bit fields:
- * - The FIB table index the src,dst addresses are in, top 20 bits
- * - The Session ID for ERSPAN tunnel type and 0 otherwise, next 10 bits
- * - Tunnel type, bottom 2 bits
- */
- u32 gtk_fidx_ssid_type;
+ /** address independent attributes */
+ gre_tunnel_key_common_t gtk_common;
} __attribute__ ((packed)) gre_tunnel_key6_t;
-#define GTK_FIB_INDEX_SHIFT 12
-#define GTK_FIB_INDEX_MASK 0xfffff000
-#define GTK_TYPE_SHIFT 0
-#define GTK_TYPE_MASK 0x3
-#define GTK_SESSION_ID_SHIFT 2
-#define GTK_SESSION_ID_MASK 0xffc
-#define GTK_SESSION_ID_MAX (GTK_SESSION_ID_MASK >> GTK_SESSION_ID_SHIFT)
+STATIC_ASSERT_SIZEOF (gre_tunnel_key6_t, 5 * sizeof (u64));
/**
* Union of the two possible key types
@@ -161,6 +167,11 @@ typedef union gre_tunnel_key_t_
} gre_tunnel_key_t;
/**
+ * The session ID is only a 10 bit value
+ */
+#define GTK_SESSION_ID_MAX (0x3ff)
+
+/**
* Used for GRE header seq number generation for ERSPAN encap
*/
typedef struct
@@ -190,12 +201,6 @@ typedef struct
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
/**
- * The hash table's key stored in separate memory since the tunnel_t
- * memory can realloc.
- */
- gre_tunnel_key_t *key;
-
- /**
* The tunnel's source/local address
*/
ip46_address_t tunnel_src;
@@ -372,12 +377,16 @@ extern int vnet_gre_tunnel_add_del (vnet_gre_tunnel_add_del_args_t * a,
static inline void
gre_mk_key4 (ip4_address_t src,
ip4_address_t dst,
- u32 fib_index, u8 ttype, u16 session_id, gre_tunnel_key4_t * key)
+ u32 fib_index,
+ gre_tunnel_type_t ttype,
+ gre_tunnel_mode_t tmode, u16 session_id, gre_tunnel_key4_t * key)
{
key->gtk_src = src;
key->gtk_dst = dst;
- key->gtk_fidx_ssid_type = ttype |
- (fib_index << GTK_FIB_INDEX_SHIFT) | (session_id << GTK_SESSION_ID_SHIFT);
+ key->gtk_common.type = ttype;
+ key->gtk_common.mode = tmode;
+ key->gtk_common.fib_index = fib_index;
+ key->gtk_common.session_id = session_id;
}
static inline int
@@ -385,29 +394,31 @@ gre_match_key4 (const gre_tunnel_key4_t * key1,
const gre_tunnel_key4_t * key2)
{
return ((key1->gtk_as_u64 == key2->gtk_as_u64) &&
- (key1->gtk_fidx_ssid_type == key2->gtk_fidx_ssid_type));
+ (key1->gtk_common.as_u64 == key2->gtk_common.as_u64));
}
static inline void
gre_mk_key6 (const ip6_address_t * src,
const ip6_address_t * dst,
- u32 fib_index, u8 ttype, u16 session_id, gre_tunnel_key6_t * key)
+ u32 fib_index,
+ gre_tunnel_type_t ttype,
+ gre_tunnel_mode_t tmode, u16 session_id, gre_tunnel_key6_t * key)
{
key->gtk_src = *src;
key->gtk_dst = *dst;
- key->gtk_fidx_ssid_type = ttype |
- (fib_index << GTK_FIB_INDEX_SHIFT) | (session_id << GTK_SESSION_ID_SHIFT);
+ key->gtk_common.type = ttype;
+ key->gtk_common.mode = tmode;
+ key->gtk_common.fib_index = fib_index;
+ key->gtk_common.session_id = session_id;
}
static inline int
gre_match_key6 (const gre_tunnel_key6_t * key1,
const gre_tunnel_key6_t * key2)
{
- return ((key1->gtk_src.as_u64[0] == key2->gtk_src.as_u64[0]) &&
- (key1->gtk_src.as_u64[1] == key2->gtk_src.as_u64[1]) &&
- (key1->gtk_dst.as_u64[0] == key2->gtk_dst.as_u64[0]) &&
- (key1->gtk_dst.as_u64[1] == key2->gtk_dst.as_u64[1]) &&
- (key1->gtk_fidx_ssid_type == key2->gtk_fidx_ssid_type));
+ return (ip6_address_is_equal (&key1->gtk_src, &key2->gtk_src) &&
+ ip6_address_is_equal (&key1->gtk_dst, &key2->gtk_dst) &&
+ (key1->gtk_common.as_u64 == key2->gtk_common.as_u64));
}
static inline void
diff --git a/src/vnet/gre/interface.c b/src/vnet/gre/interface.c
index 927f34ef694..fab12b4f9c0 100644
--- a/src/vnet/gre/interface.c
+++ b/src/vnet/gre/interface.c
@@ -25,6 +25,7 @@
#include <vnet/adj/adj_nbr.h>
#include <vnet/mpls/mpls.h>
#include <vnet/l2/l2_input.h>
+#include <vnet/nhrp/nhrp.h>
u8 *
format_gre_tunnel_type (u8 * s, va_list * args)
@@ -93,13 +94,13 @@ gre_tunnel_db_find (const vnet_gre_tunnel_add_del_args_t * a,
if (!a->is_ipv6)
{
gre_mk_key4 (a->src.ip4, a->dst.ip4, outer_fib_index,
- a->type, a->session_id, &key->gtk_v4);
+ a->type, a->mode, a->session_id, &key->gtk_v4);
p = hash_get_mem (gm->tunnel_by_key4, &key->gtk_v4);
}
else
{
gre_mk_key6 (&a->src.ip6, &a->dst.ip6, outer_fib_index,
- a->type, a->session_id, &key->gtk_v6);
+ a->type, a->mode, a->session_id, &key->gtk_v6);
p = hash_get_mem (gm->tunnel_by_key6, &key->gtk_v6);
}
@@ -114,35 +115,29 @@ gre_tunnel_db_add (gre_tunnel_t * t, gre_tunnel_key_t * key)
{
gre_main_t *gm = &gre_main;
- t->key = clib_mem_alloc (sizeof (*t->key));
- clib_memcpy (t->key, key, sizeof (*key));
-
if (t->tunnel_dst.fp_proto == FIB_PROTOCOL_IP6)
{
- hash_set_mem (gm->tunnel_by_key6, &t->key->gtk_v6, t->dev_instance);
+ hash_set_mem_alloc (&gm->tunnel_by_key6, &key->gtk_v6, t->dev_instance);
}
else
{
- hash_set_mem (gm->tunnel_by_key4, &t->key->gtk_v4, t->dev_instance);
+ hash_set_mem_alloc (&gm->tunnel_by_key4, &key->gtk_v4, t->dev_instance);
}
}
static void
-gre_tunnel_db_remove (gre_tunnel_t * t)
+gre_tunnel_db_remove (gre_tunnel_t * t, gre_tunnel_key_t * key)
{
gre_main_t *gm = &gre_main;
if (t->tunnel_dst.fp_proto == FIB_PROTOCOL_IP6)
{
- hash_unset_mem (gm->tunnel_by_key6, &t->key->gtk_v6);
+ hash_unset_mem_free (&gm->tunnel_by_key6, &key->gtk_v6);
}
else
{
- hash_unset_mem (gm->tunnel_by_key4, &t->key->gtk_v4);
+ hash_unset_mem_free (&gm->tunnel_by_key4, &key->gtk_v4);
}
-
- clib_mem_free (t->key);
- t->key = NULL;
}
/**
@@ -204,6 +199,99 @@ gre_tunnel_restack (gre_tunnel_t * gt)
}
}
+static void
+gre_nhrp_mk_key (const gre_tunnel_t * t,
+ const nhrp_entry_t * ne, gre_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 */
+ if (FIB_PROTOCOL_IP4 == nh->fp_proto)
+ gre_mk_key4 (t->tunnel_src.ip4,
+ nh->fp_addr.ip4,
+ nhrp_entry_get_fib_index (ne),
+ t->type, GRE_TUNNEL_MODE_P2P, 0, &key->gtk_v4);
+ else
+ gre_mk_key6 (&t->tunnel_src.ip6,
+ &nh->fp_addr.ip6,
+ nhrp_entry_get_fib_index (ne),
+ t->type, GRE_TUNNEL_MODE_P2P, 0, &key->gtk_v6);
+}
+
+static void
+gre_nhrp_entry_added (const nhrp_entry_t * ne)
+{
+ gre_main_t *gm = &gre_main;
+ gre_tunnel_key_t key;
+ gre_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);
+
+ gre_nhrp_mk_key (t, ne, &key);
+ gre_tunnel_db_add (t, &key);
+}
+
+static void
+gre_nhrp_entry_deleted (const nhrp_entry_t * ne)
+{
+ gre_main_t *gm = &gre_main;
+ gre_tunnel_key_t key;
+ gre_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);
+
+ gre_nhrp_mk_key (t, ne, &key);
+ gre_tunnel_db_remove (t, &key);
+}
+
+static walk_rc_t
+gre_tunnel_delete_nhrp_walk (index_t nei, void *ctx)
+{
+ gre_tunnel_t *t = ctx;
+ gre_tunnel_key_t key;
+
+ gre_nhrp_mk_key (t, nhrp_entry_get (nei), &key);
+ gre_tunnel_db_remove (t, &key);
+
+ return (WALK_CONTINUE);
+}
+
+static walk_rc_t
+gre_tunnel_add_nhrp_walk (index_t nei, void *ctx)
+{
+ gre_tunnel_t *t = ctx;
+ gre_tunnel_key_t key;
+
+ gre_nhrp_mk_key (t, nhrp_entry_get (nei), &key);
+ gre_tunnel_db_add (t, &key);
+
+ return (WALK_CONTINUE);
+}
+
static int
vnet_gre_tunnel_add (vnet_gre_tunnel_add_del_args_t * a,
u32 outer_fib_index, u32 * sw_if_indexp)
@@ -315,6 +403,10 @@ vnet_gre_tunnel_add (vnet_gre_tunnel_add_del_args_t * a,
t->tunnel_dst.fp_addr = a->dst;
gre_tunnel_db_add (t, &key);
+
+ if (t->mode == GRE_TUNNEL_MODE_MP)
+ nhrp_walk_itf (t->sw_if_index, gre_tunnel_add_nhrp_walk, t);
+
if (t->type == GRE_TUNNEL_TYPE_ERSPAN)
{
gre_sn_key_t skey;
@@ -368,6 +460,9 @@ vnet_gre_tunnel_delete (vnet_gre_tunnel_add_del_args_t * a,
if (NULL == t)
return VNET_API_ERROR_NO_SUCH_ENTRY;
+ if (t->mode == GRE_TUNNEL_MODE_MP)
+ nhrp_walk_itf (t->sw_if_index, gre_tunnel_delete_nhrp_walk, t);
+
sw_if_index = t->sw_if_index;
vnet_sw_interface_set_flags (vnm, sw_if_index, 0 /* down */ );
@@ -397,7 +492,7 @@ vnet_gre_tunnel_delete (vnet_gre_tunnel_add_del_args_t * a,
}
hash_unset (gm->instance_used, t->user_instance);
- gre_tunnel_db_remove (t);
+ gre_tunnel_db_remove (t, &key);
pool_put (gm->tunnels, t);
if (sw_if_indexp)
@@ -423,6 +518,9 @@ vnet_gre_tunnel_add_del (vnet_gre_tunnel_add_del_args_t * a,
if (a->session_id > GTK_SESSION_ID_MAX)
return VNET_API_ERROR_INVALID_SESSION_ID;
+ if (a->mode == GRE_TUNNEL_MODE_MP && !ip46_address_is_zero (&a->dst))
+ return (VNET_API_ERROR_INVALID_DST_ADDRESS);
+
if (a->is_add)
return (vnet_gre_tunnel_add (a, outer_fib_index, sw_if_indexp));
else
@@ -639,10 +737,17 @@ VLIB_CLI_COMMAND (show_gre_tunnel_command, static) = {
};
/* *INDENT-ON* */
+const static nhrp_vft_t gre_nhrp_vft = {
+ .nv_added = gre_nhrp_entry_added,
+ .nv_deleted = gre_nhrp_entry_deleted,
+};
+
/* force inclusion from application's main.c */
clib_error_t *
gre_interface_init (vlib_main_t * vm)
{
+ nhrp_register (&gre_nhrp_vft);
+
return (NULL);
}
diff --git a/src/vnet/gre/node.c b/src/vnet/gre/node.c
index 891fc9c08d4..14fb0877a93 100644
--- a/src/vnet/gre/node.c
+++ b/src/vnet/gre/node.c
@@ -239,16 +239,17 @@ gre_input (vlib_main_t * vm,
len[0] = vlib_buffer_length_in_chain (vm, b[0]);
len[1] = vlib_buffer_length_in_chain (vm, b[1]);
+ /* always search for P2P types in the DP */
if (is_ipv6)
{
gre_mk_key6 (&ip6[0]->dst_address,
&ip6[0]->src_address,
vnet_buffer (b[0])->ip.fib_index,
- type[0], 0, &key[0].gtk_v6);
+ type[0], GRE_TUNNEL_MODE_P2P, 0, &key[0].gtk_v6);
gre_mk_key6 (&ip6[1]->dst_address,
&ip6[1]->src_address,
vnet_buffer (b[1])->ip.fib_index,
- type[1], 0, &key[1].gtk_v6);
+ type[1], GRE_TUNNEL_MODE_P2P, 0, &key[1].gtk_v6);
matched[0] = gre_match_key6 (&cached_key.gtk_v6, &key[0].gtk_v6);
matched[1] = gre_match_key6 (&cached_key.gtk_v6, &key[1].gtk_v6);
}
@@ -257,11 +258,11 @@ gre_input (vlib_main_t * vm,
gre_mk_key4 (ip4[0]->dst_address,
ip4[0]->src_address,
vnet_buffer (b[0])->ip.fib_index,
- type[0], 0, &key[0].gtk_v4);
+ type[0], GRE_TUNNEL_MODE_P2P, 0, &key[0].gtk_v4);
gre_mk_key4 (ip4[1]->dst_address,
ip4[1]->src_address,
vnet_buffer (b[1])->ip.fib_index,
- type[1], 0, &key[1].gtk_v4);
+ type[1], GRE_TUNNEL_MODE_P2P, 0, &key[1].gtk_v4);
matched[0] = gre_match_key4 (&cached_key.gtk_v4, &key[0].gtk_v4);
matched[1] = gre_match_key4 (&cached_key.gtk_v4, &key[1].gtk_v4);
}
@@ -380,7 +381,7 @@ gre_input (vlib_main_t * vm,
gre_mk_key6 (&ip6[0]->dst_address,
&ip6[0]->src_address,
vnet_buffer (b[0])->ip.fib_index,
- type[0], 0, &key[0].gtk_v6);
+ type[0], GRE_TUNNEL_MODE_P2P, 0, &key[0].gtk_v6);
matched[0] = gre_match_key6 (&cached_key.gtk_v6, &key[0].gtk_v6);
}
else
@@ -388,7 +389,7 @@ gre_input (vlib_main_t * vm,
gre_mk_key4 (ip4[0]->dst_address,
ip4[0]->src_address,
vnet_buffer (b[0])->ip.fib_index,
- type[0], 0, &key[0].gtk_v4);
+ type[0], GRE_TUNNEL_MODE_P2P, 0, &key[0].gtk_v4);
matched[0] = gre_match_key4 (&cached_key.gtk_v4, &key[0].gtk_v4);
}
diff --git a/src/vnet/nhrp/nhrp.c b/src/vnet/nhrp/nhrp.c
index a89f6cd9459..e97fbe05b9c 100644
--- a/src/vnet/nhrp/nhrp.c
+++ b/src/vnet/nhrp/nhrp.c
@@ -20,8 +20,55 @@
#include <vnet/fib/fib_table.h>
#include <vnet/adj/adj_midchain.h>
+typedef struct nhrp_key_t_
+{
+ ip46_address_t nk_peer;
+ u32 nk_sw_if_index;
+} nhrp_key_t;
+
+struct nhrp_entry_t_
+{
+ nhrp_key_t *ne_key;
+ fib_prefix_t ne_nh;
+ u32 ne_fib_index;
+};
+
static uword *nhrp_db;
static nhrp_entry_t *nhrp_pool;
+static nhrp_vft_t *nhrp_vfts;
+
+#define NHRP_NOTIFY(_ne, _fn) { \
+ nhrp_vft_t *_vft; \
+ vec_foreach(_vft, nhrp_vfts) { \
+ if (_vft->_fn) { \
+ _vft->_fn(_ne); \
+ } \
+ } \
+}
+
+u32
+nhrp_entry_get_sw_if_index (const nhrp_entry_t * ne)
+{
+ return (ne->ne_key->nk_sw_if_index);
+}
+
+u32
+nhrp_entry_get_fib_index (const nhrp_entry_t * ne)
+{
+ return (ne->ne_fib_index);
+}
+
+const ip46_address_t *
+nhrp_entry_get_peer (const nhrp_entry_t * ne)
+{
+ return (&ne->ne_key->nk_peer);
+}
+
+const fib_prefix_t *
+nhrp_entry_get_nh (const nhrp_entry_t * ne)
+{
+ return (&ne->ne_nh);
+}
void
nhrp_entry_adj_stack (const nhrp_entry_t * ne, adj_index_t ai)
@@ -113,6 +160,8 @@ nhrp_entry_add (u32 sw_if_index,
adj_nbr_walk_nh (sw_if_index,
ne->ne_nh.fp_proto,
&ne->ne_key->nk_peer, nhrp_entry_add_adj_walk, ne);
+
+ NHRP_NOTIFY (ne, nv_added);
}
else
return (VNET_API_ERROR_ENTRY_ALREADY_EXISTS);
@@ -135,6 +184,8 @@ nhrp_entry_del (u32 sw_if_index, const ip46_address_t * peer)
ne->ne_nh.fp_proto,
&ne->ne_key->nk_peer, nhrp_entry_del_adj_walk, ne);
+ NHRP_NOTIFY (ne, nv_deleted);
+
clib_mem_free (ne->ne_key);
pool_put (nhrp_pool, ne);
}
@@ -178,6 +229,26 @@ nhrp_walk (nhrp_walk_cb_t fn, void *ctx)
/* *INDENT-ON* */
}
+void
+nhrp_walk_itf (u32 sw_if_index, nhrp_walk_cb_t fn, void *ctx)
+{
+ index_t nei;
+
+ /* *INDENT-OFF* */
+ pool_foreach_index(nei, nhrp_pool,
+ ({
+ if (sw_if_index == nhrp_entry_get_sw_if_index(nhrp_entry_get(nei)))
+ fn(nei, ctx);
+ }));
+ /* *INDENT-ON* */
+}
+
+void
+nhrp_register (const nhrp_vft_t * vft)
+{
+ vec_add1 (nhrp_vfts, *vft);
+}
+
static clib_error_t *
nhrp_init (vlib_main_t * vm)
{
diff --git a/src/vnet/nhrp/nhrp.h b/src/vnet/nhrp/nhrp.h
index fa842feb658..5b46b0d8a92 100644
--- a/src/vnet/nhrp/nhrp.h
+++ b/src/vnet/nhrp/nhrp.h
@@ -20,21 +20,25 @@
#include <vnet/ip/ip.h>
-typedef struct nhrp_key_t_
-{
- ip46_address_t nk_peer;
- u32 nk_sw_if_index;
-} nhrp_key_t;
-
-typedef struct nhrp_entry_t_
-{
- nhrp_key_t *ne_key;
- fib_prefix_t ne_nh;
- u32 ne_fib_index;
-} nhrp_entry_t;
+/**
+ * An NHRP entry represents the mapping between a peer on an interface in the overlay
+ * and a next-hop address in the underlay.
+ * i.e. there's a multipoint tunnel providing the overlay (henace a peer on
+ * that tunnel) which is reachable via 'tunnel destination' address in the
+ * underlay.
+ */
+typedef struct nhrp_entry_t_ nhrp_entry_t;
+/** accessors for the opaque struct */
+extern u32 nhrp_entry_get_sw_if_index (const nhrp_entry_t * ne);
+extern u32 nhrp_entry_get_fib_index (const nhrp_entry_t * ne);
+extern const ip46_address_t *nhrp_entry_get_peer (const nhrp_entry_t * ne);
+extern const fib_prefix_t *nhrp_entry_get_nh (const nhrp_entry_t * ne);
extern u8 *format_nhrp_entry (u8 * s, va_list * args);
+/**
+ * Create a new NHRP entry
+ */
extern int nhrp_entry_add (u32 sw_if_index,
const ip46_address_t * peer,
u32 nh_table_id, const ip46_address_t * nh);
@@ -50,6 +54,21 @@ extern void nhrp_entry_adj_stack (const nhrp_entry_t * ne, adj_index_t ai);
typedef walk_rc_t (*nhrp_walk_cb_t) (index_t nei, void *ctx);
extern void nhrp_walk (nhrp_walk_cb_t fn, void *ctx);
+extern void nhrp_walk_itf (u32 sw_if_index, nhrp_walk_cb_t fn, void *ctx);
+
+/**
+ * Notifications for the creation and deletion of NHRP entries
+ */
+typedef void (*nhrp_entry_added_t) (const nhrp_entry_t * ne);
+typedef void (*nhrp_entry_deleted_t) (const nhrp_entry_t * ne);
+
+typedef struct nhrp_vft_t_
+{
+ nhrp_entry_added_t nv_added;
+ nhrp_entry_deleted_t nv_deleted;
+} nhrp_vft_t;
+
+extern void nhrp_register (const nhrp_vft_t * vft);
#endif
diff --git a/src/vnet/nhrp/nhrp_api.c b/src/vnet/nhrp/nhrp_api.c
index 6f07eb700e4..d36adf99e14 100644
--- a/src/vnet/nhrp/nhrp_api.c
+++ b/src/vnet/nhrp/nhrp_api.c
@@ -70,6 +70,7 @@ vl_api_nhrp_send_one (index_t nei, void *arg)
vl_api_nhrp_details_t *mp;
vl_api_nhrp_send_t *ctx = arg;
const nhrp_entry_t *ne;
+ const fib_prefix_t *pfx;
mp = vl_msg_api_alloc (sizeof (*mp));
clib_memset (mp, 0, sizeof (*mp));
@@ -77,12 +78,15 @@ vl_api_nhrp_send_one (index_t nei, void *arg)
mp->context = ctx->context;
ne = nhrp_entry_get (nei);
+ pfx = nhrp_entry_get_nh (ne);
- ip_address_encode (&ne->ne_key->nk_peer, IP46_TYPE_ANY, &mp->entry.peer);
- ip_address_encode (&ne->ne_nh.fp_addr, IP46_TYPE_ANY, &mp->entry.nh);
+ ip_address_encode (nhrp_entry_get_peer (ne), IP46_TYPE_ANY,
+ &mp->entry.peer);
+ ip_address_encode (&pfx->fp_addr, IP46_TYPE_ANY, &mp->entry.nh);
mp->entry.nh_table_id =
- htonl (fib_table_get_table_id (ne->ne_fib_index, ne->ne_nh.fp_proto));
- mp->entry.sw_if_index = htonl (ne->ne_key->nk_sw_if_index);
+ htonl (fib_table_get_table_id
+ (nhrp_entry_get_fib_index (ne), pfx->fp_proto));
+ mp->entry.sw_if_index = htonl (nhrp_entry_get_sw_if_index (ne));
vl_api_send_msg (ctx->reg, (u8 *) mp);
diff --git a/test/test_gre.py b/test/test_gre.py
index 96fe3042b4e..f4b4ee2b7e5 100644
--- a/test/test_gre.py
+++ b/test/test_gre.py
@@ -451,6 +451,28 @@ class TestGRE(VppTestCase):
self.logger.error(ppp("Tx:", tx))
raise
+ def verify_decapped_6o6(self, src_if, capture, sent):
+ self.assertEqual(len(capture), len(sent))
+
+ for i in range(len(capture)):
+ try:
+ tx = sent[i]
+ rx = capture[i]
+
+ tx_ip = tx[IPv6]
+ rx_ip = rx[IPv6]
+ tx_gre = tx[GRE]
+ tx_ip = tx_gre[IPv6]
+
+ self.assertEqual(rx_ip.src, tx_ip.src)
+ self.assertEqual(rx_ip.dst, tx_ip.dst)
+ self.assertEqual(rx_ip.hlim + 1, tx_ip.hlim)
+
+ except:
+ self.logger.error(ppp("Rx:", rx))
+ self.logger.error(ppp("Tx:", tx))
+ raise
+
def test_gre(self):
""" GRE IPv4 tunnel Tests """
@@ -1003,6 +1025,17 @@ class TestGRE(VppTestCase):
self.logger.info(self.vapi.cli("sh ip fib"))
#
+ # ensure we don't match to the tunnel if the source address
+ # is all zeros
+ #
+ tx = self.create_tunnel_stream_4o4(self.pg0,
+ "0.0.0.0",
+ itf.local_ip4,
+ self.pg0.local_ip4,
+ self.pg0.remote_ip4)
+ self.send_and_assert_no_replies(self.pg0, tx)
+
+ #
# for-each peer
#
for ii in range(1, 4):
@@ -1029,23 +1062,34 @@ class TestGRE(VppTestCase):
# Send a packet stream that is routed into the tunnel
# - packets are GRE encapped
#
- tx = self.create_stream_ip4(self.pg0, "5.5.5.5", route_addr)
- rx = self.send_and_expect(self.pg0, tx, itf)
- self.verify_tunneled_4o4(self.pg0, rx, tx,
+ tx_e = self.create_stream_ip4(self.pg0, "5.5.5.5", route_addr)
+ rx = self.send_and_expect(self.pg0, tx_e, itf)
+ self.verify_tunneled_4o4(self.pg0, rx, tx_e,
itf.local_ip4,
gre_if._remote_hosts[ii].ip4)
+ tx_i = self.create_tunnel_stream_4o4(self.pg0,
+ itf._remote_hosts[ii].ip4,
+ itf.local_ip4,
+ self.pg0.local_ip4,
+ self.pg0.remote_ip4)
+ rx = self.send_and_expect(self.pg0, tx_i, self.pg0)
+ self.verify_decapped_4o4(self.pg0, rx, tx_i)
+
#
# delete and re-add the NHRP
#
nhrp.remove_vpp_config()
- self.send_and_assert_no_replies(self.pg0, tx)
+ self.send_and_assert_no_replies(self.pg0, tx_e)
+ self.send_and_assert_no_replies(self.pg0, tx_i)
nhrp.add_vpp_config()
- rx = self.send_and_expect(self.pg0, tx, itf)
- self.verify_tunneled_4o4(self.pg0, rx, tx,
+ rx = self.send_and_expect(self.pg0, tx_e, itf)
+ self.verify_tunneled_4o4(self.pg0, rx, tx_e,
itf.local_ip4,
gre_if._remote_hosts[ii].ip4)
+ rx = self.send_and_expect(self.pg0, tx_i, self.pg0)
+ self.verify_decapped_4o4(self.pg0, rx, tx_i)
gre_if.admin_down()
gre_if.unconfig_ip4()
@@ -1053,7 +1097,8 @@ class TestGRE(VppTestCase):
def test_mgre6(self):
""" mGRE IPv6 tunnel Tests """
- self.pg0.ip6_enable()
+ self.pg0.config_ip6()
+ self.pg0.resolve_ndp()
for itf in self.pg_interfaces[3:]:
#
@@ -1106,27 +1151,37 @@ class TestGRE(VppTestCase):
# Send a packet stream that is routed into the tunnel
# - packets are GRE encapped
#
- tx = self.create_stream_ip6(self.pg0, "5::5", route_addr)
- rx = self.send_and_expect(self.pg0, tx, itf)
- self.verify_tunneled_6o6(self.pg0, rx, tx,
+ tx_e = self.create_stream_ip6(self.pg0, "5::5", route_addr)
+ rx = self.send_and_expect(self.pg0, tx_e, itf)
+ self.verify_tunneled_6o6(self.pg0, rx, tx_e,
itf.local_ip6,
gre_if._remote_hosts[ii].ip6)
+ tx_i = self.create_tunnel_stream_6o6(self.pg0,
+ itf._remote_hosts[ii].ip6,
+ itf.local_ip6,
+ self.pg0.local_ip6,
+ self.pg0.remote_ip6)
+ rx = self.send_and_expect(self.pg0, tx_i, self.pg0)
+ self.verify_decapped_6o6(self.pg0, rx, tx_i)
#
# delete and re-add the NHRP
#
nhrp.remove_vpp_config()
- self.send_and_assert_no_replies(self.pg0, tx)
+ self.send_and_assert_no_replies(self.pg0, tx_e)
nhrp.add_vpp_config()
- rx = self.send_and_expect(self.pg0, tx, itf)
- self.verify_tunneled_6o6(self.pg0, rx, tx,
+ rx = self.send_and_expect(self.pg0, tx_e, itf)
+ self.verify_tunneled_6o6(self.pg0, rx, tx_e,
itf.local_ip6,
gre_if._remote_hosts[ii].ip6)
+ rx = self.send_and_expect(self.pg0, tx_i, self.pg0)
+ self.verify_decapped_6o6(self.pg0, rx, tx_i)
+
gre_if.admin_down()
gre_if.unconfig_ip4()
itf.unconfig_ip6()
- self.pg0.ip6_disable()
+ self.pg0.unconfig_ip6()
if __name__ == '__main__':