* See the License for the specific language governing permissions and
* limitations under the License.
*/
+/**
+ * @file
+ * @brief Common utility functions for IPv4 and IPv6 VXLAN GPE tunnels
+ *
+*/
#include <vnet/vxlan-gpe/vxlan_gpe.h>
+#include <vnet/fib/fib.h>
#include <vnet/ip/format.h>
vxlan_gpe_main_t vxlan_gpe_main;
+/**
+ * @brief Tracing function for VXLAN GPE tunnel packets
+ *
+ * @param *s formatting string
+ * @param *args
+ *
+ * @return *s formatted string
+ *
+ */
u8 * format_vxlan_gpe_tunnel (u8 * s, va_list * args)
{
vxlan_gpe_tunnel_t * t = va_arg (*args, vxlan_gpe_tunnel_t *);
return s;
}
+/**
+ * @brief Naming for VXLAN GPE tunnel
+ *
+ * @param *s formatting string
+ * @param *args
+ *
+ * @return *s formatted string
+ *
+ */
static u8 * format_vxlan_gpe_name (u8 * s, va_list * args)
{
u32 dev_instance = va_arg (*args, u32);
return format (s, "vxlan_gpe_tunnel%d", dev_instance);
}
-
static uword dummy_interface_tx (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
clib_warning ("you shouldn't be here, leaking buffers...");
return frame->n_vectors;
}
+
+/**
+ * @brief CLI function for VXLAN GPE admin up/down
+ *
+ * @param *vnm
+ * @param hw_if_index
+ * @param flag
+ *
+ * @return *rc
+ *
+ */
static clib_error_t *
vxlan_gpe_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
{
.admin_up_down_function = vxlan_gpe_interface_admin_up_down,
};
-static uword dummy_set_rewrite (vnet_main_t * vnm,
- u32 sw_if_index,
- u32 l3_type,
- void * dst_address,
- void * rewrite,
- uword max_rewrite_bytes)
-{
- return 0;
-}
-
+/**
+ * @brief Formatting function for tracing VXLAN GPE with length
+ *
+ * @param *s
+ * @param *args
+ *
+ * @return *s
+ *
+ */
static u8 * format_vxlan_gpe_header_with_length (u8 * s, va_list * args)
{
u32 dev_instance = va_arg (*args, u32);
VNET_HW_INTERFACE_CLASS (vxlan_gpe_hw_class) = {
.name = "VXLAN_GPE",
.format_header = format_vxlan_gpe_header_with_length,
- .set_rewrite = dummy_set_rewrite,
+ .build_rewrite = default_build_rewrite,
+ .flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P,
};
}
-static int vxlan4_gpe_rewrite (vxlan_gpe_tunnel_t * t)
+/**
+ * @brief Calculate IPv4 VXLAN GPE rewrite header
+ *
+ * @param *t
+ *
+ * @return rc
+ *
+ */
+int vxlan4_gpe_rewrite (vxlan_gpe_tunnel_t * t, u32 extension_size,
+ u8 protocol_override, uword encap_next_node)
{
u8 *rw = 0;
ip4_header_t * ip0;
ip4_vxlan_gpe_header_t * h0;
int len;
- len = sizeof (*h0);
+ len = sizeof (*h0) + extension_size;
+ vec_free(t->rewrite);
vec_validate_aligned (rw, len-1, CLIB_CACHE_LINE_BYTES);
h0 = (ip4_vxlan_gpe_header_t *) rw;
/* VXLAN header. Are we having fun yet? */
h0->vxlan.flags = VXLAN_GPE_FLAGS_I | VXLAN_GPE_FLAGS_P;
h0->vxlan.ver_res = VXLAN_GPE_VERSION;
- h0->vxlan.protocol = VXLAN_GPE_PROTOCOL_IP4;
+ if (protocol_override)
+ {
+ h0->vxlan.protocol = protocol_override;
+ }
+ else
+ {
+ h0->vxlan.protocol = t->protocol;
+ }
+ t->rewrite_size = sizeof(ip4_vxlan_gpe_header_t) + extension_size;
h0->vxlan.vni_res = clib_host_to_net_u32 (t->vni<<8);
t->rewrite = rw;
+ t->encap_next_node = encap_next_node;
return (0);
}
-static int vxlan6_gpe_rewrite (vxlan_gpe_tunnel_t * t)
+/**
+ * @brief Calculate IPv6 VXLAN GPE rewrite header
+ *
+ * @param *t
+ *
+ * @return rc
+ *
+ */
+int vxlan6_gpe_rewrite (vxlan_gpe_tunnel_t * t, u32 extension_size,
+ u8 protocol_override, uword encap_next_node)
{
u8 *rw = 0;
ip6_header_t * ip0;
ip6_vxlan_gpe_header_t * h0;
int len;
- len = sizeof (*h0);
+ len = sizeof (*h0) + extension_size;
+ vec_free(t->rewrite);
vec_validate_aligned (rw, len-1, CLIB_CACHE_LINE_BYTES);
h0 = (ip6_vxlan_gpe_header_t *) rw;
/* VXLAN header. Are we having fun yet? */
h0->vxlan.flags = VXLAN_GPE_FLAGS_I | VXLAN_GPE_FLAGS_P;
h0->vxlan.ver_res = VXLAN_GPE_VERSION;
- h0->vxlan.protocol = VXLAN_GPE_PROTOCOL_IP4;
+ if (protocol_override)
+ {
+ h0->vxlan.protocol = t->protocol;
+ }
+ else
+ {
+ h0->vxlan.protocol = protocol_override;
+ }
+ t->rewrite_size = sizeof(ip4_vxlan_gpe_header_t) + extension_size;
h0->vxlan.vni_res = clib_host_to_net_u32 (t->vni<<8);
t->rewrite = rw;
+ t->encap_next_node = encap_next_node;
return (0);
}
+/**
+ * @brief Add or Del a VXLAN GPE tunnel
+ *
+ * @param *a
+ * @param *sw_if_index
+ *
+ * @return rc
+ *
+ */
int vnet_vxlan_gpe_add_del_tunnel
(vnet_vxlan_gpe_add_del_tunnel_args_t *a, u32 * sw_if_indexp)
{
if (!a->is_ip6) t->flags |= VXLAN_GPE_TUNNEL_IS_IPV4;
if (!a->is_ip6) {
- rv = vxlan4_gpe_rewrite (t);
+ rv = vxlan4_gpe_rewrite (t, 0, 0, VXLAN_GPE_ENCAP_NEXT_IP4_LOOKUP);
} else {
- rv = vxlan6_gpe_rewrite (t);
+ rv = vxlan6_gpe_rewrite (t, 0, 0, VXLAN_GPE_ENCAP_NEXT_IP6_LOOKUP);
}
if (rv)
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 clib_error_t *
vxlan_gpe_add_del_tunnel_command_fn (vlib_main_t * vm,
unformat_input_t * input,
else if (unformat (line_input, "encap-vrf-id %d", &tmp))
{
if (ipv6_set)
- encap_fib_index = fib6_index_from_fib_id (tmp);
+ encap_fib_index = ip6_fib_index_from_table_id (tmp);
else
- encap_fib_index = fib4_index_from_fib_id (tmp);
+ encap_fib_index = ip4_fib_index_from_table_id (tmp);
if (encap_fib_index == ~0)
return clib_error_return (0, "nonexistent encap fib id %d", tmp);
}
else if (unformat (line_input, "decap-vrf-id %d", &tmp))
{
-
if (ipv6_set)
- decap_fib_index = fib6_index_from_fib_id (tmp);
+ decap_fib_index = ip6_fib_index_from_table_id (tmp);
else
- decap_fib_index = fib4_index_from_fib_id (tmp);
+ decap_fib_index = ip4_fib_index_from_table_id (tmp);
if (decap_fib_index == ~0)
return clib_error_return (0, "nonexistent decap fib id %d", tmp);
.function = vxlan_gpe_add_del_tunnel_command_fn,
};
+/**
+ * @brief CLI function for showing VXLAN GPE tunnels
+ *
+ * @param *vm
+ * @param *input
+ * @param *cmd
+ *
+ * @return error
+ *
+ */
static clib_error_t *
show_vxlan_gpe_tunnel_command_fn (vlib_main_t * vm,
unformat_input_t * input,
.function = show_vxlan_gpe_tunnel_command_fn,
};
+/**
+ * @brief Feature init function for VXLAN GPE
+ *
+ * @param *vm
+ *
+ * @return error
+ *
+ */
clib_error_t *vxlan_gpe_init (vlib_main_t *vm)
{
vxlan_gpe_main_t *gm = &vxlan_gpe_main;
vxlan4_gpe_input_node.index, 1 /* is_ip4 */);
udp_register_dst_port (vm, UDP_DST_PORT_vxlan6_gpe,
vxlan6_gpe_input_node.index, 0 /* is_ip4 */);
+
+ /* Register the list of standard decap protocols supported */
+ vxlan_gpe_register_decap_protocol (VXLAN_GPE_PROTOCOL_IP4,
+ VXLAN_GPE_INPUT_NEXT_IP4_INPUT);
+ vxlan_gpe_register_decap_protocol (VXLAN_GPE_PROTOCOL_IP6,
+ VXLAN_GPE_INPUT_NEXT_IP6_INPUT);
+ vxlan_gpe_register_decap_protocol (VXLAN_GPE_PROTOCOL_ETHERNET,
+ VXLAN_GPE_INPUT_NEXT_ETHERNET_INPUT);
return 0;
}
Code Review / vpp.git / blobdiff