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-rw-r--r--src/vnet/ipsec/esp.h6
-rw-r--r--src/vnet/ipsec/ipsec_cli.c52
-rw-r--r--src/vnet/ipsec/ipsec_format.c34
-rw-r--r--src/vnet/ipsec/ipsec_if.c27
-rw-r--r--src/vnet/ipsec/ipsec_if.h5
-rw-r--r--src/vnet/ipsec/ipsec_if_in.c76
-rw-r--r--src/vnet/ipsec/ipsec_tun.c20
-rw-r--r--src/vnet/ipsec/ipsec_tun_in.c45
-rw-r--r--test/template_ipsec.py19
-rw-r--r--test/test_ipsec_tun_if_esp.py121
-rw-r--r--test/vpp_ipsec_tun_interface.py2
11 files changed, 360 insertions, 47 deletions
diff --git a/src/vnet/ipsec/esp.h b/src/vnet/ipsec/esp.h
index f36f52a4752..2ab7299d7c8 100644
--- a/src/vnet/ipsec/esp.h
+++ b/src/vnet/ipsec/esp.h
@@ -21,7 +21,11 @@
typedef struct
{
- u32 spi;
+ union
+ {
+ u32 spi;
+ u8 spi_bytes[4];
+ };
u32 seq;
u8 data[0];
} esp_header_t;
diff --git a/src/vnet/ipsec/ipsec_cli.c b/src/vnet/ipsec/ipsec_cli.c
index a5972bbf2c1..a7a6c0c0d5b 100644
--- a/src/vnet/ipsec/ipsec_cli.c
+++ b/src/vnet/ipsec/ipsec_cli.c
@@ -942,6 +942,58 @@ VLIB_CLI_COMMAND (ipsec_tun_protect_show_node, static) =
};
/* *INDENT-ON* */
+static clib_error_t *
+ipsec_tun_protect_hash_show (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ ipsec_main_t *im = &ipsec_main;
+
+ {
+ ipsec_tun_lkup_result_t value;
+ ipsec4_tunnel_key_t key;
+
+ vlib_cli_output (vm, "IPv4:");
+
+ /* *INDENT-OFF* */
+ hash_foreach(key.as_u64, value.as_u64, im->tun4_protect_by_key,
+ ({
+ vlib_cli_output (vm, " %U", format_ipsec4_tunnel_key, &key);
+ vlib_cli_output (vm, " tun:%d sa:%d", value.tun_index, value.sa_index);
+ }));
+ /* *INDENT-ON* */
+ }
+
+ {
+ ipsec_tun_lkup_result_t value;
+ ipsec6_tunnel_key_t *key;
+
+ vlib_cli_output (vm, "IPv6:");
+
+ /* *INDENT-OFF* */
+ hash_foreach_mem(key, value.as_u64, im->tun6_protect_by_key,
+ ({
+ vlib_cli_output (vm, " %U", format_ipsec6_tunnel_key, key);
+ vlib_cli_output (vm, " tun:%d sa:%d", value.tun_index, value.sa_index);
+ }));
+ /* *INDENT-ON* */
+ }
+
+ return NULL;
+}
+
+/**
+ * show IPSEC tunnel protection hash tables
+ */
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (ipsec_tun_protect_hash_show_node, static) =
+{
+ .path = "show ipsec protect-hash",
+ .function = ipsec_tun_protect_hash_show,
+ .short_help = "show ipsec protect-hash",
+};
+/* *INDENT-ON* */
+
clib_error_t *
ipsec_cli_init (vlib_main_t * vm)
{
diff --git a/src/vnet/ipsec/ipsec_format.c b/src/vnet/ipsec/ipsec_format.c
index 0d596c0c973..7a5e2584719 100644
--- a/src/vnet/ipsec/ipsec_format.c
+++ b/src/vnet/ipsec/ipsec_format.c
@@ -259,9 +259,7 @@ format_ipsec_sa_flags (u8 * s, va_list * args)
{
ipsec_sa_flags_t flags = va_arg (*args, int);
- if (0)
- ;
-#define _(v, f, str) else if (flags & IPSEC_SA_FLAG_##f) s = format(s, "%s ", str);
+#define _(v, f, str) if (flags & IPSEC_SA_FLAG_##f) s = format(s, "%s ", str);
foreach_ipsec_sa_flags
#undef _
return (s);
@@ -285,10 +283,8 @@ format_ipsec_sa (u8 * s, va_list * args)
sa = pool_elt_at_index (im->sad, sai);
- s = format (s, "[%d] sa %d (0x%x) spi %u (0x%08x) mode %s%s protocol %s %U",
+ s = format (s, "[%d] sa %u (0x%x) spi %u (0x%08x) protocol:%s flags:[%U]",
sai, sa->id, sa->id, sa->spi, sa->spi,
- ipsec_sa_is_set_IS_TUNNEL (sa) ? "tunnel" : "transport",
- ipsec_sa_is_set_IS_TUNNEL_V6 (sa) ? "-ip6" : "",
sa->protocol ? "esp" : "ah", format_ipsec_sa_flags, sa->flags);
if (!(flags & IPSEC_FORMAT_DETAIL))
@@ -402,6 +398,32 @@ done:
return (s);
}
+u8 *
+format_ipsec4_tunnel_key (u8 * s, va_list * args)
+{
+ ipsec4_tunnel_key_t *key = va_arg (*args, ipsec4_tunnel_key_t *);
+
+ s = format (s, "remote:%U spi:%u (0x%08x)",
+ format_ip4_address, &key->remote_ip,
+ clib_net_to_host_u32 (key->spi),
+ clib_net_to_host_u32 (key->spi));
+
+ return (s);
+}
+
+u8 *
+format_ipsec6_tunnel_key (u8 * s, va_list * args)
+{
+ ipsec6_tunnel_key_t *key = va_arg (*args, ipsec6_tunnel_key_t *);
+
+ s = format (s, "remote:%U spi:%u (0x%08x)",
+ format_ip6_address, &key->remote_ip,
+ clib_net_to_host_u32 (key->spi),
+ clib_net_to_host_u32 (key->spi));
+
+ return (s);
+}
+
/*
* fd.io coding-style-patch-verification: ON
*
diff --git a/src/vnet/ipsec/ipsec_if.c b/src/vnet/ipsec/ipsec_if.c
index 562f40ec9ab..43997bc86c1 100644
--- a/src/vnet/ipsec/ipsec_if.c
+++ b/src/vnet/ipsec/ipsec_if.c
@@ -284,7 +284,7 @@ ipsec_add_del_tunnel_if_internal (vnet_main_t * vnm,
if (!is_ip6)
{
- key4.remote_ip = args->remote_ip.ip4.as_u32;
+ key4.remote_ip.as_u32 = args->remote_ip.ip4.as_u32;
key4.spi = clib_host_to_net_u32 (args->remote_spi);
p = hash_get (im->ipsec4_if_pool_index_by_key, key4.as_u64);
}
@@ -375,8 +375,14 @@ ipsec_add_del_tunnel_if_internal (vnet_main_t * vnm,
hash_set_mem_alloc (&im->ipsec6_if_pool_index_by_key, &key6,
t - im->tunnel_interfaces);
else
- hash_set (im->ipsec4_if_pool_index_by_key, key4.as_u64,
- t - im->tunnel_interfaces);
+ {
+ hash_set (im->ipsec4_if_pool_index_by_key, key4.as_u64,
+ t - im->tunnel_interfaces);
+ if (1 == hash_elts (im->ipsec4_if_pool_index_by_key))
+ udp_register_dst_port (vlib_get_main (),
+ UDP_DST_PORT_ipsec,
+ ipsec4_if_input_node.index, 1);
+ }
hw_if_index = vnet_register_interface (vnm, ipsec_device_class.index,
t - im->tunnel_interfaces,
@@ -427,9 +433,13 @@ ipsec_add_del_tunnel_if_internal (vnet_main_t * vnm,
if (is_ip6)
hash_unset_mem_free (&im->ipsec6_if_pool_index_by_key, &key6);
else
- hash_unset (im->ipsec4_if_pool_index_by_key, key4.as_u64);
-
+ {
+ hash_unset (im->ipsec4_if_pool_index_by_key, key4.as_u64);
+ if (0 == hash_elts (im->ipsec4_if_pool_index_by_key))
+ udp_unregister_dst_port (vlib_get_main (), UDP_DST_PORT_ipsec, 1);
+ }
hash_unset (im->ipsec_if_real_dev_by_show_dev, t->show_instance);
+
im->ipsec_if_by_sw_if_index[t->sw_if_index] = ~0;
/* delete input and output SA */
@@ -506,7 +516,7 @@ ipsec_set_interface_sa (vnet_main_t * vnm, u32 hw_if_index, u32 sa_id,
ipsec4_tunnel_key_t key;
/* unset old inbound hash entry. packets should stop arriving */
- key.remote_ip = old_sa->tunnel_src_addr.ip4.as_u32;
+ key.remote_ip.as_u32 = old_sa->tunnel_src_addr.ip4.as_u32;
key.spi = clib_host_to_net_u32 (old_sa->spi);
p = hash_get (im->ipsec4_if_pool_index_by_key, key.as_u64);
@@ -515,7 +525,7 @@ ipsec_set_interface_sa (vnet_main_t * vnm, u32 hw_if_index, u32 sa_id,
/* set new inbound SA, then set new hash entry */
t->input_sa_index = sa_index;
- key.remote_ip = sa->tunnel_src_addr.ip4.as_u32;
+ key.remote_ip.as_u32 = sa->tunnel_src_addr.ip4.as_u32;
key.spi = clib_host_to_net_u32 (sa->spi);
hash_set (im->ipsec4_if_pool_index_by_key, key.as_u64,
@@ -572,9 +582,6 @@ ipsec_tunnel_if_init (vlib_main_t * vm)
sizeof (uword));
im->ipsec_if_real_dev_by_show_dev = hash_create (0, sizeof (uword));
- udp_register_dst_port (vm, UDP_DST_PORT_ipsec, ipsec4_if_input_node.index,
- 1);
-
/* set up feature nodes to drop outbound packets with no crypto alg set */
ipsec_add_feature ("ip4-output", "esp4-no-crypto",
&im->esp4_no_crypto_tun_feature_index);
diff --git a/src/vnet/ipsec/ipsec_if.h b/src/vnet/ipsec/ipsec_if.h
index 042dddee880..ecaf3c94205 100644
--- a/src/vnet/ipsec/ipsec_if.h
+++ b/src/vnet/ipsec/ipsec_if.h
@@ -64,7 +64,7 @@ typedef CLIB_PACKED
*/
union {
struct {
- u32 remote_ip;
+ ip4_address_t remote_ip;
u32 spi;
};
u64 as_u64;
@@ -84,6 +84,9 @@ typedef CLIB_PACKED
}) ipsec6_tunnel_key_t;
/* *INDENT-ON* */
+extern u8 *format_ipsec4_tunnel_key (u8 * s, va_list * args);
+extern u8 *format_ipsec6_tunnel_key (u8 * s, va_list * args);
+
extern int ipsec_add_del_tunnel_if_internal (vnet_main_t * vnm,
ipsec_add_del_tunnel_args_t *
args, u32 * sw_if_index);
diff --git a/src/vnet/ipsec/ipsec_if_in.c b/src/vnet/ipsec/ipsec_if_in.c
index fea25fe8cee..f9341d62a68 100644
--- a/src/vnet/ipsec/ipsec_if_in.c
+++ b/src/vnet/ipsec/ipsec_if_in.c
@@ -29,6 +29,8 @@
_(RX, "good packets received") \
_(DISABLED, "ipsec packets received on disabled interface") \
_(NO_TUNNEL, "no matching tunnel") \
+_(NAT_KEEPALIVE, "NAT Keepalive") \
+_(TOO_SHORT, "Too Short") \
_(SPI_0, "SPI 0")
static char *ipsec_if_input_error_strings[] = {
@@ -48,7 +50,12 @@ typedef enum
typedef struct
{
- u32 spi;
+ union
+ {
+ ipsec4_tunnel_key_t key4;
+ ipsec6_tunnel_key_t key6;
+ };
+ u8 is_ip6;
u32 seq;
} ipsec_if_input_trace_t;
@@ -59,7 +66,12 @@ format_ipsec_if_input_trace (u8 * s, va_list * args)
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
ipsec_if_input_trace_t *t = va_arg (*args, ipsec_if_input_trace_t *);
- s = format (s, "IPSec: spi %u (0x%08x) seq %u", t->spi, t->spi, t->seq);
+ if (t->is_ip6)
+ s = format (s, "IPSec: %U seq %u",
+ format_ipsec6_tunnel_key, &t->key6, t->seq);
+ else
+ s = format (s, "IPSec: %U seq %u",
+ format_ipsec4_tunnel_key, &t->key4, t->seq);
return s;
}
@@ -215,6 +227,19 @@ ipsec_if_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
len0 = vlib_buffer_length_in_chain (vm, b[0]);
len1 = vlib_buffer_length_in_chain (vm, b[1]);
+ /* If the packet is too short to contain an SPI, then maybe
+ * it's a keep alive */
+ if (len0 < sizeof (esp_header_t))
+ {
+ if (esp0->spi_bytes[0] == 0xff)
+ b[0]->error = node->errors[IPSEC_IF_INPUT_ERROR_NAT_KEEPALIVE];
+ else
+ b[0]->error = node->errors[IPSEC_IF_INPUT_ERROR_TOO_SHORT];
+
+ next[0] = IPSEC_INPUT_NEXT_DROP;
+ goto pkt1;
+ }
+
if (is_ip6)
{
key60.remote_ip = ip60->src_address;
@@ -245,7 +270,7 @@ ipsec_if_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
}
else /* !is_ip6 */
{
- key40.remote_ip = ip40->src_address.as_u32;
+ key40.remote_ip = ip40->src_address;
key40.spi = esp0->spi;
if (key40.as_u64 == last_key4.as_u64)
@@ -312,6 +337,18 @@ ipsec_if_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
}
pkt1:
+
+ if (len1 < sizeof (esp_header_t))
+ {
+ if (esp0->spi_bytes[0] == 0xff)
+ b[1]->error = node->errors[IPSEC_IF_INPUT_ERROR_NAT_KEEPALIVE];
+ else
+ b[1]->error = node->errors[IPSEC_IF_INPUT_ERROR_TOO_SHORT];
+
+ next[1] = IPSEC_INPUT_NEXT_DROP;
+ goto trace1;
+ }
+
if (is_ip6)
{
key61.remote_ip = ip61->src_address;
@@ -342,7 +379,7 @@ ipsec_if_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
}
else /* !is_ip6 */
{
- key41.remote_ip = ip41->src_address.as_u32;
+ key41.remote_ip = ip41->src_address;
key41.spi = esp1->spi;
if (key41.as_u64 == last_key4.as_u64)
@@ -415,14 +452,22 @@ ipsec_if_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
{
ipsec_if_input_trace_t *tr =
vlib_add_trace (vm, node, b[0], sizeof (*tr));
- tr->spi = clib_host_to_net_u32 (esp0->spi);
+ if (is_ip6)
+ clib_memcpy (&tr->key6, &key60, sizeof (tr->key6));
+ else
+ clib_memcpy (&tr->key4, &key40, sizeof (tr->key4));
+ tr->is_ip6 = is_ip6;
tr->seq = clib_host_to_net_u32 (esp0->seq);
}
if (b[1]->flags & VLIB_BUFFER_IS_TRACED)
{
ipsec_if_input_trace_t *tr =
vlib_add_trace (vm, node, b[1], sizeof (*tr));
- tr->spi = clib_host_to_net_u32 (esp1->spi);
+ if (is_ip6)
+ clib_memcpy (&tr->key6, &key61, sizeof (tr->key6));
+ else
+ clib_memcpy (&tr->key4, &key41, sizeof (tr->key4));
+ tr->is_ip6 = is_ip6;
tr->seq = clib_host_to_net_u32 (esp1->seq);
}
}
@@ -477,6 +522,17 @@ ipsec_if_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_buffer_advance (b[0], buf_adv0);
len0 = vlib_buffer_length_in_chain (vm, b[0]);
+ if (len0 < sizeof (esp_header_t))
+ {
+ if (esp0->spi_bytes[0] == 0xff)
+ b[0]->error = node->errors[IPSEC_IF_INPUT_ERROR_NAT_KEEPALIVE];
+ else
+ b[0]->error = node->errors[IPSEC_IF_INPUT_ERROR_TOO_SHORT];
+
+ next[0] = IPSEC_INPUT_NEXT_DROP;
+ goto trace00;
+ }
+
if (is_ip6)
{
key60.remote_ip = ip60->src_address;
@@ -507,7 +563,7 @@ ipsec_if_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
}
else /* !is_ip6 */
{
- key40.remote_ip = ip40->src_address.as_u32;
+ key40.remote_ip = ip40->src_address;
key40.spi = esp0->spi;
if (key40.as_u64 == last_key4.as_u64)
@@ -580,7 +636,11 @@ ipsec_if_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
{
ipsec_if_input_trace_t *tr =
vlib_add_trace (vm, node, b[0], sizeof (*tr));
- tr->spi = clib_host_to_net_u32 (esp0->spi);
+ if (is_ip6)
+ clib_memcpy (&tr->key6, &key60, sizeof (tr->key6));
+ else
+ clib_memcpy (&tr->key4, &key40, sizeof (tr->key4));
+ tr->is_ip6 = is_ip6;
tr->seq = clib_host_to_net_u32 (esp0->seq);
}
}
diff --git a/src/vnet/ipsec/ipsec_tun.c b/src/vnet/ipsec/ipsec_tun.c
index 46980df101b..859fab8899e 100644
--- a/src/vnet/ipsec/ipsec_tun.c
+++ b/src/vnet/ipsec/ipsec_tun.c
@@ -98,10 +98,14 @@ ipsec_tun_protect_db_add (ipsec_main_t * im, const ipsec_tun_protect_t * itp)
if (ip46_address_is_ip4 (&itp->itp_crypto.dst))
{
ipsec4_tunnel_key_t key = {
- .remote_ip = itp->itp_crypto.dst.ip4.as_u32,
+ .remote_ip = itp->itp_crypto.dst.ip4,
.spi = clib_host_to_net_u32 (sa->spi),
};
hash_set (im->tun4_protect_by_key, key.as_u64, res.as_u64);
+ if (1 == hash_elts(im->tun4_protect_by_key))
+ udp_register_dst_port (vlib_get_main(),
+ UDP_DST_PORT_ipsec,
+ ipsec4_tun_input_node.index, 1);
}
else
{
@@ -127,10 +131,14 @@ ipsec_tun_protect_db_remove (ipsec_main_t * im,
if (ip46_address_is_ip4 (&itp->itp_crypto.dst))
{
ipsec4_tunnel_key_t key = {
- .remote_ip = itp->itp_crypto.dst.ip4.as_u32,
+ .remote_ip = itp->itp_crypto.dst.ip4,
.spi = clib_host_to_net_u32 (sa->spi),
};
hash_unset (im->tun4_protect_by_key, &key);
+ if (0 == hash_elts(im->tun4_protect_by_key))
+ udp_unregister_dst_port (vlib_get_main(),
+ UDP_DST_PORT_ipsec,
+ 1);
}
else
{
@@ -359,10 +367,10 @@ ipsec_tun_protect_del (u32 sw_if_index)
pool_put (ipsec_protect_pool, itp);
- /* if (0 == hash_elts (im->tun4_protect_by_key)) */
- /* ip4_unregister_protocol (IP_PROTOCOL_IPSEC_ESP); */
- /* if (0 == hash_elts (im->tun6_protect_by_key)) */
- /* ip6_unregister_protocol (IP_PROTOCOL_IPSEC_ESP); */
+ if (0 == hash_elts (im->tun4_protect_by_key))
+ ip4_unregister_protocol (IP_PROTOCOL_IPSEC_ESP);
+ if (0 == hash_elts (im->tun6_protect_by_key))
+ ip6_unregister_protocol (IP_PROTOCOL_IPSEC_ESP);
return (0);
}
diff --git a/src/vnet/ipsec/ipsec_tun_in.c b/src/vnet/ipsec/ipsec_tun_in.c
index df6d9278303..04f7a9296ab 100644
--- a/src/vnet/ipsec/ipsec_tun_in.c
+++ b/src/vnet/ipsec/ipsec_tun_in.c
@@ -32,6 +32,8 @@
_(DISABLED, "ipsec packets received on disabled interface") \
_(NO_TUNNEL, "no matching tunnel") \
_(TUNNEL_MISMATCH, "SPI-tunnel mismatch") \
+ _(NAT_KEEPALIVE, "NAT Keepalive") \
+ _(TOO_SHORT, "Too Short") \
_(SPI_0, "SPI 0")
static char *ipsec_tun_protect_input_error_strings[] = {
@@ -59,7 +61,12 @@ typedef enum ipsec_tun_next_t_
typedef struct
{
- u32 spi;
+ union
+ {
+ ipsec4_tunnel_key_t key4;
+ ipsec6_tunnel_key_t key6;
+ };
+ u8 is_ip6;
u32 seq;
} ipsec_tun_protect_input_trace_t;
@@ -71,7 +78,12 @@ format_ipsec_tun_protect_input_trace (u8 * s, va_list * args)
ipsec_tun_protect_input_trace_t *t =
va_arg (*args, ipsec_tun_protect_input_trace_t *);
- s = format (s, "IPSec: spi %u seq %u", t->spi, t->seq);
+ if (t->is_ip6)
+ s = format (s, "IPSec: %U seq %u",
+ format_ipsec6_tunnel_key, &t->key6, t->seq);
+ else
+ s = format (s, "IPSec: %U seq %u",
+ format_ipsec4_tunnel_key, &t->key4, t->seq);
return s;
}
@@ -160,8 +172,10 @@ ipsec_tun_protect_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
ip4_header_t *ip40;
ip6_header_t *ip60;
esp_header_t *esp0;
+ u16 buf_rewind0;
- ip40 = vlib_buffer_get_current (b[0]);
+ ip40 =
+ (ip4_header_t *) (b[0]->data + vnet_buffer (b[0])->l3_hdr_offset);
if (is_ip6)
{
@@ -178,11 +192,12 @@ ipsec_tun_protect_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
(esp_header_t *) ((u8 *) ip40 + ip4_header_bytes (ip40) +
sizeof (udp_header_t));
hdr_sz0 = 0;
+ buf_rewind0 = ip4_header_bytes (ip40) + sizeof (udp_header_t);
}
else
{
esp0 = (esp_header_t *) ((u8 *) ip40 + ip4_header_bytes (ip40));
- hdr_sz0 = ip4_header_bytes (ip40);
+ buf_rewind0 = hdr_sz0 = ip4_header_bytes (ip40);
}
}
@@ -191,6 +206,19 @@ ipsec_tun_protect_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_buffer_advance (b[0], hdr_sz0);
len0 = vlib_buffer_length_in_chain (vm, b[0]);
+ if (len0 < sizeof (esp_header_t))
+ {
+ if (esp0->spi_bytes[0] == 0xff)
+ b[0]->error =
+ node->errors[IPSEC_TUN_PROTECT_INPUT_ERROR_NAT_KEEPALIVE];
+ else
+ b[0]->error =
+ node->errors[IPSEC_TUN_PROTECT_INPUT_ERROR_TOO_SHORT];
+
+ next[0] = IPSEC_INPUT_NEXT_DROP;
+ goto trace00;
+ }
+
if (is_ip6)
{
key60.remote_ip = ip60->src_address;
@@ -219,7 +247,7 @@ ipsec_tun_protect_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
}
else
{
- key40.remote_ip = ip40->src_address.as_u32;
+ key40.remote_ip = ip40->src_address;
key40.spi = esp0->spi;
if (key40.as_u64 == last_key4.as_u64)
@@ -238,6 +266,7 @@ ipsec_tun_protect_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
else
{
next[0] = ipsec_ip4_if_no_tunnel (node, b[0], esp0, ip40);
+ vlib_buffer_advance (b[0], -buf_rewind0);
n_no_tunnel++;
goto trace00;
}
@@ -342,7 +371,11 @@ ipsec_tun_protect_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
{
ipsec_tun_protect_input_trace_t *tr =
vlib_add_trace (vm, node, b[0], sizeof (*tr));
- tr->spi = clib_host_to_net_u32 (esp0->spi);
+ if (is_ip6)
+ clib_memcpy (&tr->key6, &key60, sizeof (tr->key6));
+ else
+ clib_memcpy (&tr->key4, &key40, sizeof (tr->key4));
+ tr->is_ip6 = is_ip6;
tr->seq = clib_host_to_net_u32 (esp0->seq);
}
}
diff --git a/test/template_ipsec.py b/test/template_ipsec.py
index d714a93d378..e40fa561dbd 100644
--- a/test/template_ipsec.py
+++ b/test/template_ipsec.py
@@ -558,6 +558,8 @@ class IpsecTun4(object):
def verify_encrypted(self, p, sa, rxs):
decrypt_pkts = []
for rx in rxs:
+ if p.nat_header:
+ self.assertEqual(rx[UDP].dport, 4500)
self.assert_packet_checksums_valid(rx)
self.assertEqual(len(rx) - len(Ether()), rx[IP].len)
try:
@@ -642,6 +644,23 @@ class IpsecTun4(object):
self.verify_counters4(p, count)
+ def verify_keepalive(self, p):
+ pkt = (Ether(src=self.tun_if.remote_mac, dst=self.tun_if.local_mac) /
+ IP(src=p.remote_tun_if_host, dst=self.tun_if.local_ip4) /
+ UDP(sport=333, dport=4500) /
+ Raw(0xff))
+ self.send_and_assert_no_replies(self.tun_if, pkt*31)
+ self.assert_error_counter_equal(
+ '/err/%s/NAT Keepalive' % self.tun4_input_node, 31)
+
+ pkt = (Ether(src=self.tun_if.remote_mac, dst=self.tun_if.local_mac) /
+ IP(src=p.remote_tun_if_host, dst=self.tun_if.local_ip4) /
+ UDP(sport=333, dport=4500) /
+ Raw(0xfe))
+ self.send_and_assert_no_replies(self.tun_if, pkt*31)
+ self.assert_error_counter_equal(
+ '/err/%s/Too Short' % self.tun4_input_node, 31)
+
class IpsecTun4Tests(IpsecTun4):
""" UT test methods for Tunnel v4 """
diff --git a/test/test_ipsec_tun_if_esp.py b/test/test_ipsec_tun_if_esp.py
index 20f12497f8d..5cf311ec9c5 100644
--- a/test/test_ipsec_tun_if_esp.py
+++ b/test/test_ipsec_tun_if_esp.py
@@ -63,6 +63,55 @@ class TemplateIpsec4TunIfEsp(TemplateIpsec):
super(TemplateIpsec4TunIfEsp, self).tearDown()
+class TemplateIpsec4TunIfEspUdp(TemplateIpsec):
+ """ IPsec UDP tunnel interface tests """
+
+ tun4_encrypt_node_name = "esp4-encrypt-tun"
+ tun4_decrypt_node_name = "esp4-decrypt"
+ encryption_type = ESP
+
+ @classmethod
+ def setUpClass(cls):
+ super(TemplateIpsec4TunIfEspUdp, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TemplateIpsec4TunIfEspUdp, cls).tearDownClass()
+
+ def setUp(self):
+ super(TemplateIpsec4TunIfEspUdp, self).setUp()
+
+ self.tun_if = self.pg0
+
+ p = self.ipv4_params
+ p.flags = (VppEnum.vl_api_ipsec_sad_flags_t.
+ IPSEC_API_SAD_FLAG_UDP_ENCAP)
+ p.nat_header = UDP(sport=5454, dport=4500)
+
+ p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
+ p.scapy_tun_spi, p.crypt_algo_vpp_id,
+ p.crypt_key, p.crypt_key,
+ p.auth_algo_vpp_id, p.auth_key,
+ p.auth_key, udp_encap=True)
+ p.tun_if.add_vpp_config()
+ p.tun_if.admin_up()
+ p.tun_if.config_ip4()
+ p.tun_if.config_ip6()
+
+ r = VppIpRoute(self, p.remote_tun_if_host, 32,
+ [VppRoutePath(p.tun_if.remote_ip4,
+ 0xffffffff)])
+ r.add_vpp_config()
+ r = VppIpRoute(self, p.remote_tun_if_host6, 128,
+ [VppRoutePath(p.tun_if.remote_ip6,
+ 0xffffffff,
+ proto=DpoProto.DPO_PROTO_IP6)])
+ r.add_vpp_config()
+
+ def tearDown(self):
+ super(TemplateIpsec4TunIfEspUdp, self).tearDown()
+
+
class TestIpsec4TunIfEsp1(TemplateIpsec4TunIfEsp, IpsecTun4Tests):
""" Ipsec ESP - TUN tests """
tun4_encrypt_node_name = "esp4-encrypt-tun"
@@ -94,6 +143,16 @@ class TestIpsec4TunIfEsp1(TemplateIpsec4TunIfEsp, IpsecTun4Tests):
[9000, 0, 0, 0])
+class TestIpsec4TunIfEspUdp(TemplateIpsec4TunIfEspUdp, IpsecTun4Tests):
+ """ Ipsec ESP UDP tests """
+
+ tun4_input_node = "ipsec4-if-input"
+
+ def test_keepalive(self):
+ """ IPSEC NAT Keepalive """
+ self.verify_keepalive(self.ipv4_params)
+
+
class TestIpsec4TunIfEsp2(TemplateIpsec4TunIfEsp, IpsecTcpTests):
""" Ipsec ESP - TCP tests """
pass
@@ -661,19 +720,26 @@ class TestIpsecGreIfEsp(TemplateIpsec,
class TemplateIpsec4TunProtect(object):
""" IPsec IPv4 Tunnel protect """
+ encryption_type = ESP
+ tun4_encrypt_node_name = "esp4-encrypt-tun"
+ tun4_decrypt_node_name = "esp4-decrypt-tun"
+ tun4_input_node = "ipsec4-tun-input"
+
def config_sa_tra(self, p):
config_tun_params(p, self.encryption_type, self.tun_if)
p.tun_sa_out = VppIpsecSA(self, p.scapy_tun_sa_id, p.scapy_tun_spi,
p.auth_algo_vpp_id, p.auth_key,
p.crypt_algo_vpp_id, p.crypt_key,
- self.vpp_esp_protocol)
+ self.vpp_esp_protocol,
+ flags=p.flags)
p.tun_sa_out.add_vpp_config()
p.tun_sa_in = VppIpsecSA(self, p.vpp_tun_sa_id, p.vpp_tun_spi,
p.auth_algo_vpp_id, p.auth_key,
p.crypt_algo_vpp_id, p.crypt_key,
- self.vpp_esp_protocol)
+ self.vpp_esp_protocol,
+ flags=p.flags)
p.tun_sa_in.add_vpp_config()
def config_sa_tun(self, p):
@@ -684,7 +750,8 @@ class TemplateIpsec4TunProtect(object):
p.crypt_algo_vpp_id, p.crypt_key,
self.vpp_esp_protocol,
self.tun_if.remote_addr[p.addr_type],
- self.tun_if.local_addr[p.addr_type])
+ self.tun_if.local_addr[p.addr_type],
+ flags=p.flags)
p.tun_sa_out.add_vpp_config()
p.tun_sa_in = VppIpsecSA(self, p.vpp_tun_sa_id, p.vpp_tun_spi,
@@ -692,7 +759,8 @@ class TemplateIpsec4TunProtect(object):
p.crypt_algo_vpp_id, p.crypt_key,
self.vpp_esp_protocol,
self.tun_if.remote_addr[p.addr_type],
- self.tun_if.local_addr[p.addr_type])
+ self.tun_if.local_addr[p.addr_type],
+ flags=p.flags)
p.tun_sa_in.add_vpp_config()
def config_protect(self, p):
@@ -732,10 +800,6 @@ class TestIpsec4TunProtect(TemplateIpsec,
IpsecTun4):
""" IPsec IPv4 Tunnel protect - transport mode"""
- encryption_type = ESP
- tun4_encrypt_node_name = "esp4-encrypt-tun"
- tun4_decrypt_node_name = "esp4-decrypt-tun"
-
def setUp(self):
super(TestIpsec4TunProtect, self).setUp()
@@ -785,6 +849,47 @@ class TestIpsec4TunProtect(TemplateIpsec,
self.unconfig_network(p)
+class TestIpsec4TunProtectUdp(TemplateIpsec,
+ TemplateIpsec4TunProtect,
+ IpsecTun4):
+ """ IPsec IPv4 Tunnel protect - transport mode"""
+
+ def setUp(self):
+ super(TestIpsec4TunProtectUdp, self).setUp()
+
+ self.tun_if = self.pg0
+
+ p = self.ipv4_params
+ p.flags = (VppEnum.vl_api_ipsec_sad_flags_t.
+ IPSEC_API_SAD_FLAG_UDP_ENCAP)
+ p.nat_header = UDP(sport=5454, dport=4500)
+ self.config_network(p)
+ self.config_sa_tra(p)
+ self.config_protect(p)
+
+ def tearDown(self):
+ p = self.ipv4_params
+ self.unconfig_protect(p)
+ self.unconfig_sa(p)
+ self.unconfig_network(p)
+ super(TestIpsec4TunProtectUdp, self).tearDown()
+
+ def test_tun_44(self):
+ """IPSEC UDP tunnel protect"""
+
+ p = self.ipv4_params
+
+ self.verify_tun_44(p, count=127)
+ c = p.tun_if.get_rx_stats()
+ self.assertEqual(c['packets'], 127)
+ c = p.tun_if.get_tx_stats()
+ self.assertEqual(c['packets'], 127)
+
+ def test_keepalive(self):
+ """ IPSEC NAT Keepalive """
+ self.verify_keepalive(self.ipv4_params)
+
+
class TestIpsec4TunProtectTun(TemplateIpsec,
TemplateIpsec4TunProtect,
IpsecTun4):
diff --git a/test/vpp_ipsec_tun_interface.py b/test/vpp_ipsec_tun_interface.py
index 97359b13281..c561a1fd11f 100644
--- a/test/vpp_ipsec_tun_interface.py
+++ b/test/vpp_ipsec_tun_interface.py
@@ -27,7 +27,7 @@ class VppIpsecTunInterface(VppTunnelInterface):
else:
self.local_ip = self.parent_if.local_ip4
self.remote_ip = self.parent_if.remote_ip4
- self.udp_encap = False
+ self.udp_encap = udp_encap
def add_vpp_config(self):
r = self.test.vapi.ipsec_tunnel_if_add_del(