};
} ip4_and_gre_union_t;
+typedef struct {
+ union {
+ ip6_and_gre_header_t ip6_and_gre;
+ u64 as_u64[3];
+ };
+} ip6_and_gre_union_t;
+
/* Packet trace structure */
typedef struct {
/* pkt length */
u32 length;
- /* tunnel ip4 addresses */
- ip4_address_t src;
- ip4_address_t dst;
+ /* tunnel ip addresses */
+ ip46_address_t src;
+ ip46_address_t dst;
} gre_tx_trace_t;
u8 * format_gre_tx_trace (u8 * s, va_list * args)
s = format (s, "GRE: tunnel %d len %d src %U dst %U",
t->tunnel_id, clib_net_to_host_u16 (t->length),
- format_ip4_address, &t->src.as_u8,
- format_ip4_address, &t->dst.as_u8);
+ format_ip46_address, &t->src, IP46_TYPE_ANY,
+ format_ip46_address, &t->dst, IP46_TYPE_ANY);
return s;
}
gre_header_t * h = va_arg (*args, gre_header_t *);
u32 max_header_bytes = va_arg (*args, u32);
gre_protocol_t p = clib_net_to_host_u16 (h->protocol);
- uword indent, header_bytes;
+ u32 indent, header_bytes;
header_bytes = sizeof (h[0]);
if (max_header_bytes != 0 && header_bytes > max_header_bytes)
const void *dst_address)
{
gre_main_t * gm = &gre_main;
- ip4_and_gre_header_t * h;
+ ip4_and_gre_header_t * h4;
+ ip6_and_gre_header_t * h6;
u8* rewrite = NULL;
gre_tunnel_t *t;
u32 ti;
+ u8 is_ipv6;
ti = gm->tunnel_index_by_sw_if_index[sw_if_index];
t = pool_elt_at_index(gm->tunnels, ti);
- vec_validate(rewrite, sizeof(*h)-1);
- h = (ip4_and_gre_header_t*)rewrite;
- h->gre.protocol = clib_host_to_net_u16(gre_proto_from_vnet_link(link_type));
+ is_ipv6 = t->tunnel_dst.fp_proto == FIB_PROTOCOL_IP6 ? 1 : 0;
- h->ip4.ip_version_and_header_length = 0x45;
- h->ip4.ttl = 254;
- h->ip4.protocol = IP_PROTOCOL_GRE;
- /* fixup ip4 header length and checksum after-the-fact */
- h->ip4.src_address.as_u32 = t->tunnel_src.as_u32;
- h->ip4.dst_address.as_u32 = t->tunnel_dst.as_u32;
- h->ip4.checksum = ip4_header_checksum (&h->ip4);
+ if (!is_ipv6)
+ {
+ vec_validate(rewrite, sizeof(*h4)-1);
+ h4 = (ip4_and_gre_header_t*)rewrite;
+ h4->gre.protocol = clib_host_to_net_u16(gre_proto_from_vnet_link(link_type));
+
+ h4->ip4.ip_version_and_header_length = 0x45;
+ h4->ip4.ttl = 254;
+ h4->ip4.protocol = IP_PROTOCOL_GRE;
+ /* fixup ip4 header length and checksum after-the-fact */
+ h4->ip4.src_address.as_u32 = t->tunnel_src.ip4.as_u32;
+ h4->ip4.dst_address.as_u32 = t->tunnel_dst.fp_addr.ip4.as_u32;
+ h4->ip4.checksum = ip4_header_checksum (&h4->ip4);
+ }
+ else
+ {
+ vec_validate(rewrite, sizeof(*h6)-1);
+ h6 = (ip6_and_gre_header_t*)rewrite;
+ h6->gre.protocol = clib_host_to_net_u16(gre_proto_from_vnet_link(link_type));
+
+ h6->ip6.ip_version_traffic_class_and_flow_label = clib_host_to_net_u32(6 << 28);
+ h6->ip6.hop_limit = 255;
+ h6->ip6.protocol = IP_PROTOCOL_GRE;
+ /* fixup ip6 header length and checksum after-the-fact */
+ h6->ip6.src_address.as_u64[0] = t->tunnel_src.ip6.as_u64[0];
+ h6->ip6.src_address.as_u64[1] = t->tunnel_src.ip6.as_u64[1];
+ h6->ip6.dst_address.as_u64[0] = t->tunnel_dst.fp_addr.ip6.as_u64[0];
+ h6->ip6.dst_address.as_u64[1] = t->tunnel_dst.fp_addr.ip6.as_u64[1];
+ }
return (rewrite);
}
+#define is_v4_packet(_h) ((*(u8*) _h) & 0xF0) == 0x40
+
void
-gre_fixup (vlib_main_t *vm,
+gre4_fixup (vlib_main_t *vm,
ip_adjacency_t *adj,
vlib_buffer_t *b0)
{
ip0->checksum = ip4_header_checksum (ip0);
}
+void
+gre6_fixup (vlib_main_t *vm,
+ ip_adjacency_t *adj,
+ vlib_buffer_t *b0)
+{
+ ip6_header_t * ip0;
+
+ ip0 = vlib_buffer_get_current (b0);
+
+ /* Fixup the payload length field in the GRE tunnel encap that was applied
+ * at the midchain node */
+ ip0->payload_length =
+ clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0))
+ - sizeof(*ip0);
+}
+
void
gre_update_adj (vnet_main_t * vnm,
u32 sw_if_index,
adj_index_t ai)
{
- adj_nbr_midchain_update_rewrite (ai, gre_fixup,
+ gre_main_t * gm = &gre_main;
+ gre_tunnel_t *t;
+ u32 ti;
+ u8 is_ipv6;
+
+ ti = gm->tunnel_index_by_sw_if_index[sw_if_index];
+ t = pool_elt_at_index(gm->tunnels, ti);
+ is_ipv6 = t->tunnel_dst.fp_proto == FIB_PROTOCOL_IP6 ? 1 : 0;
+
+ adj_nbr_midchain_update_rewrite (ai, !is_ipv6 ? gre4_fixup : gre6_fixup,
(VNET_LINK_ETHERNET == adj_get_link_type (ai) ?
- ADJ_MIDCHAIN_FLAG_NO_COUNT :
- ADJ_MIDCHAIN_FLAG_NONE),
+ ADJ_FLAG_MIDCHAIN_NO_COUNT :
+ ADJ_FLAG_NONE),
gre_build_rewrite(vnm, sw_if_index,
adj_get_link_type(ai),
NULL));
u32 * from, * to_next, n_left_from, n_left_to_next;
vnet_interface_output_runtime_t * rd = (void *) node->runtime_data;
const gre_tunnel_t *gt = pool_elt_at_index (gm->tunnels, rd->dev_instance);
+ u8 is_ipv6 = gt->tunnel_dst.fp_proto == FIB_PROTOCOL_IP6 ? 1 : 0;
/* Vector of buffer / pkt indices we're supposed to process */
from = vlib_frame_vector_args (frame);
{
gre_tx_trace_t *tr = vlib_add_trace (vm, node,
b0, sizeof (*tr));
- tr->tunnel_id = gt - gm->tunnels;
- tr->length = vlib_buffer_length_in_chain (vm, b0);
- tr->src.as_u32 = gt->tunnel_src.as_u32;
- tr->dst.as_u32 = gt->tunnel_src.as_u32;
+ tr->tunnel_id = gt - gm->tunnels;
+ tr->src = gt->tunnel_src;
+ tr->dst = gt->tunnel_src;
+ tr->length = vlib_buffer_length_in_chain (vm, b0);
}
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- vlib_node_increment_counter (vm, gre_input_node.index,
+ vlib_node_increment_counter (vm, !is_ipv6 ? gre4_input_node.index :
+ gre6_input_node.index,
GRE_ERROR_PKTS_ENCAP, frame->n_vectors);
return frame->n_vectors;
if ((error = vlib_call_init_function (vm, ip4_lookup_init)))
return error;
+ if ((error = vlib_call_init_function (vm, ip6_lookup_init)))
+ return error;
+
/* Set up the ip packet generator */
pi = ip_get_protocol_info (im, IP_PROTOCOL_GRE);
pi->format_header = format_gre_header;
gm->protocol_info_by_name = hash_create_string (0, sizeof (uword));
gm->protocol_info_by_protocol = hash_create (0, sizeof (uword));
- gm->tunnel_by_key = hash_create (0, sizeof (uword));
+ gm->tunnel_by_key4 = hash_create (0, sizeof (uword));
+ gm->tunnel_by_key6 = hash_create_mem (0, sizeof(u64[4]), sizeof (uword));
#define _(n,s) add_protocol (gm, GRE_PROTOCOL_##s, #s);
foreach_gre_protocol
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