/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Copyright (c) 2016 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
* See the License for the specific language governing permissions and
* limitations under the License.
*/
+
#include <vnet/lisp-gpe/lisp_gpe.h>
lisp_gpe_main_t lisp_gpe_main;
-static u8 * format_decap_next (u8 * s, va_list * args)
+static int
+lisp_gpe_rewrite (lisp_gpe_tunnel_t * t)
{
- u32 next_index = va_arg (*args, u32);
+ u8 *rw = 0;
+ lisp_gpe_header_t * lisp0;
+ int len;
- switch (next_index)
+ if (ip_addr_version(&t->src) == IP4)
{
- case LISP_GPE_INPUT_NEXT_DROP:
- return format (s, "drop");
- case LISP_GPE_INPUT_NEXT_IP4_INPUT:
- return format (s, "ip4");
- case LISP_GPE_INPUT_NEXT_IP6_INPUT:
- return format (s, "ip6");
- case LISP_GPE_INPUT_NEXT_LISP_GPE_ENCAP:
- return format (s, "nsh-lisp-gpe");
- default:
- return format (s, "unknown %d", next_index);
- }
- return s;
-}
-
-u8 * format_lisp_gpe_tunnel (u8 * s, va_list * args)
-{
- lisp_gpe_tunnel_t * t = va_arg (*args, lisp_gpe_tunnel_t *);
- lisp_gpe_main_t * ngm = &lisp_gpe_main;
-
- s = format (s,
- "[%d] %U (src) %U (dst) fibs: encap %d, decap %d",
- t - ngm->tunnels,
- format_ip4_address, &t->src,
- format_ip4_address, &t->dst,
- t->encap_fib_index,
- t->decap_fib_index);
-
- s = format (s, " decap next %U\n", format_decap_next, t->decap_next_index);
- s = format (s, "lisp ver %d ", (t->ver_res>>6));
-
-#define _(n,v) if (t->flags & v) s = format (s, "%s-bit ", #n);
- foreach_lisp_gpe_flag_bit;
-#undef _
+ ip4_header_t * ip0;
+ ip4_udp_lisp_gpe_header_t * h0;
+ len = sizeof(*h0);
- s = format (s, "next_protocol %d ver_res %x res %x\n",
- t->next_protocol, t->ver_res, t->res);
-
- s = format (s, "iid %d (0x%x)\n", t->iid, t->iid);
- return s;
-}
-
-static u8 * format_lisp_gpe_name (u8 * s, va_list * args)
-{
- u32 dev_instance = va_arg (*args, u32);
- return format (s, "lisp_gpe_tunnel%d", dev_instance);
-}
+ vec_validate_aligned(rw, len - 1, CLIB_CACHE_LINE_BYTES);
-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;
-}
-
-VNET_DEVICE_CLASS (lisp_gpe_device_class,static) = {
- .name = "LISP_GPE",
- .format_device_name = format_lisp_gpe_name,
- .format_tx_trace = format_lisp_gpe_encap_trace,
- .tx_function = dummy_interface_tx,
-};
+ h0 = (ip4_udp_lisp_gpe_header_t *) rw;
-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;
-}
+ /* Fixed portion of the (outer) ip4 header */
+ ip0 = &h0->ip4;
+ ip0->ip_version_and_header_length = 0x45;
+ ip0->ttl = 254;
+ ip0->protocol = IP_PROTOCOL_UDP;
-u8 * format_lisp_gpe_header_with_length (u8 * s, va_list * args)
-{
- lisp_gpe_header_t * h = va_arg (*args, lisp_gpe_header_t *);
- u32 max_header_bytes = va_arg (*args, u32);
- u32 header_bytes;
+ /* we fix up the ip4 header length and checksum after-the-fact */
+ ip_address_copy_addr(&ip0->src_address, &t->src);
+ ip_address_copy_addr(&ip0->dst_address, &t->dst);
+ ip0->checksum = ip4_header_checksum (ip0);
- header_bytes = sizeof (h[0]);
- if (max_header_bytes != 0 && header_bytes > max_header_bytes)
- return format (s, "gre-nsh header truncated");
+ /* UDP header, randomize src port on something, maybe? */
+ h0->udp.src_port = clib_host_to_net_u16 (4341);
+ h0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_lisp_gpe);
- s = format (s, "flags: ");
-#define _(n,v) if (h->flags & v) s = format (s, "%s ", #n);
- foreach_lisp_gpe_flag_bit;
-#undef _
-
- s = format (s, "\n ver_res %d res %d next_protocol %d iid %d(%x)",
- h->ver_res, h->res, h->next_protocol,
- clib_net_to_host_u32 (h->iid),
- clib_net_to_host_u32 (h->iid));
- return s;
-}
-
-VNET_HW_INTERFACE_CLASS (lisp_gpe_hw_class) = {
- .name = "LISP_GPE",
- .format_header = format_lisp_gpe_header_with_length,
- .set_rewrite = dummy_set_rewrite,
-};
-
-#define foreach_copy_field \
-_(src.as_u32) \
-_(dst.as_u32) \
-_(encap_fib_index) \
-_(decap_fib_index) \
-_(decap_next_index) \
-_(flags) \
-_(next_protocol) \
-_(ver_res) \
-_(res) \
-_(iid)
-
-static int lisp_gpe_rewrite (lisp_gpe_tunnel_t * t)
-{
- u8 *rw = 0;
- ip4_header_t * ip0;
- lisp_gpe_header_t * lisp0;
- ip4_udp_lisp_gpe_header_t * h0;
- int len;
+ /* LISP-gpe header */
+ lisp0 = &h0->lisp;
+ }
+ else
+ {
+ ip6_header_t * ip0;
+ ip6_udp_lisp_gpe_header_t * h0;
+ len = sizeof(*h0);
- len = sizeof (*h0);
+ vec_validate_aligned(rw, len - 1, CLIB_CACHE_LINE_BYTES);
- vec_validate_aligned (rw, len-1, CLIB_CACHE_LINE_BYTES);
+ h0 = (ip6_udp_lisp_gpe_header_t *) rw;
- h0 = (ip4_udp_lisp_gpe_header_t *) rw;
+ /* Fixed portion of the (outer) ip6 header */
+ ip0 = &h0->ip6;
+ ip0->ip_version_traffic_class_and_flow_label =
+ clib_host_to_net_u32 (0x6 << 28);
+ ip0->hop_limit = 254;
+ ip0->protocol = IP_PROTOCOL_UDP;
- /* Fixed portion of the (outer) ip4 header */
- ip0 = &h0->ip4;
- ip0->ip_version_and_header_length = 0x45;
- ip0->ttl = 254;
- ip0->protocol = IP_PROTOCOL_UDP;
+ /* we fix up the ip6 header length after-the-fact */
+ ip_address_copy_addr(&ip0->src_address, &t->src);
+ ip_address_copy_addr(&ip0->dst_address, &t->dst);
- /* we fix up the ip4 header length and checksum after-the-fact */
- ip0->src_address.as_u32 = t->src.as_u32;
- ip0->dst_address.as_u32 = t->dst.as_u32;
- ip0->checksum = ip4_header_checksum (ip0);
+ /* UDP header, randomize src port on something, maybe? */
+ h0->udp.src_port = clib_host_to_net_u16 (4341);
+ h0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_lisp_gpe);
- /* UDP header, randomize src port on something, maybe? */
- h0->udp.src_port = clib_host_to_net_u16 (4341);
- h0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_lisp_gpe);
+ /* LISP-gpe header */
+ lisp0 = &h0->lisp;
+ }
- /* LISP-gpe header */
- lisp0 = &h0->lisp;
-
lisp0->flags = t->flags;
lisp0->ver_res = t->ver_res;
lisp0->res = t->res;
lisp0->next_protocol = t->next_protocol;
- lisp0->iid = clib_host_to_net_u32 (t->iid);
-
+ lisp0->iid = clib_host_to_net_u32 (t->vni);
+
t->rewrite = rw;
- return (0);
+ return 0;
}
-int vnet_lisp_gpe_add_del_tunnel
-(vnet_lisp_gpe_add_del_tunnel_args_t *a, u32 * sw_if_indexp)
+#define foreach_copy_field \
+_(encap_fib_index) \
+_(decap_fib_index) \
+_(decap_next_index) \
+_(vni)
+
+static u32
+add_del_ip_tunnel (vnet_lisp_gpe_add_del_fwd_entry_args_t *a,
+ u32 * tun_index_res)
{
- lisp_gpe_main_t * ngm = &lisp_gpe_main;
+ lisp_gpe_main_t * lgm = &lisp_gpe_main;
lisp_gpe_tunnel_t *t = 0;
- vnet_main_t * vnm = ngm->vnet_main;
- vnet_hw_interface_t * hi;
uword * p;
- u32 hw_if_index = ~0;
- u32 sw_if_index = ~0;
int rv;
- lisp_gpe_tunnel_key_t key, *key_copy;
- hash_pair_t *hp;
-
- key.src = a->src.as_u32;
- key.iid = clib_host_to_net_u32(a->iid);
+ lisp_gpe_tunnel_key_t key;
+
+ /* prepare tunnel key */
+ memset(&key, 0, sizeof(key));
+ ip_prefix_copy(&key.eid, &gid_address_ippref(&a->deid));
+ ip_address_copy(&key.dst_loc, &a->dlocator);
+ key.iid = clib_host_to_net_u32 (a->vni);
+
+ p = mhash_get (&lgm->lisp_gpe_tunnel_by_key, &key);
- p = hash_get_mem (ngm->lisp_gpe_tunnel_by_key, &key);
-
if (a->is_add)
{
/* adding a tunnel: tunnel must not already exist */
- if (p)
+ if (p)
return VNET_API_ERROR_INVALID_VALUE;
-
+
if (a->decap_next_index >= LISP_GPE_INPUT_N_NEXT)
return VNET_API_ERROR_INVALID_DECAP_NEXT;
-
- pool_get_aligned (ngm->tunnels, t, CLIB_CACHE_LINE_BYTES);
+
+ pool_get_aligned (lgm->tunnels, t, CLIB_CACHE_LINE_BYTES);
memset (t, 0, sizeof (*t));
-
+
/* copy from arg structure */
#define _(x) t->x = a->x;
foreach_copy_field;
#undef _
-
+
+ ip_address_copy(&t->src, &a->slocator);
+ ip_address_copy(&t->dst, &a->dlocator);
+
+ /* if vni is non-default */
+ if (a->vni)
+ {
+ t->flags = LISP_GPE_FLAGS_I;
+ t->vni = a->vni;
+ }
+
+ t->flags |= LISP_GPE_FLAGS_P;
+ t->next_protocol = ip_prefix_version(&key.eid) == IP4 ?
+ LISP_GPE_NEXT_PROTO_IP4 : LISP_GPE_NEXT_PROTO_IP6;
+
rv = lisp_gpe_rewrite (t);
if (rv)
{
- pool_put (ngm->tunnels, t);
+ pool_put(lgm->tunnels, t);
return rv;
}
- key_copy = clib_mem_alloc (sizeof (*key_copy));
- memcpy (key_copy, &key, sizeof (*key_copy));
+ mhash_set(&lgm->lisp_gpe_tunnel_by_key, &key, t - lgm->tunnels, 0);
- hash_set_mem (ngm->lisp_gpe_tunnel_by_key, key_copy,
- t - ngm->tunnels);
-
- if (vec_len (ngm->free_lisp_gpe_tunnel_hw_if_indices) > 0)
- {
- hw_if_index = ngm->free_lisp_gpe_tunnel_hw_if_indices
- [vec_len (ngm->free_lisp_gpe_tunnel_hw_if_indices)-1];
- _vec_len (ngm->free_lisp_gpe_tunnel_hw_if_indices) -= 1;
-
- hi = vnet_get_hw_interface (vnm, hw_if_index);
- hi->dev_instance = t - ngm->tunnels;
- hi->hw_instance = hi->dev_instance;
- }
- else
- {
- hw_if_index = vnet_register_interface
- (vnm, lisp_gpe_device_class.index, t - ngm->tunnels,
- lisp_gpe_hw_class.index, t - ngm->tunnels);
- hi = vnet_get_hw_interface (vnm, hw_if_index);
- hi->output_node_index = lisp_gpe_encap_node.index;
- }
-
- t->hw_if_index = hw_if_index;
- t->sw_if_index = sw_if_index = hi->sw_if_index;
-
- vnet_sw_interface_set_flags (vnm, hi->sw_if_index,
- VNET_SW_INTERFACE_FLAG_ADMIN_UP);
+ /* return tunnel index */
+ if (tun_index_res)
+ tun_index_res[0] = t - lgm->tunnels;
}
else
{
/* deleting a tunnel: tunnel must exist */
- if (!p)
- return VNET_API_ERROR_NO_SUCH_ENTRY;
-
- t = pool_elt_at_index (ngm->tunnels, p[0]);
+ if (!p)
+ {
+ clib_warning("Tunnel for eid %U doesn't exist!", format_gid_address,
+ &a->deid);
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+ }
- vnet_sw_interface_set_flags (vnm, t->sw_if_index, 0 /* down */);
- vec_add1 (ngm->free_lisp_gpe_tunnel_hw_if_indices, t->hw_if_index);
+ t = pool_elt_at_index(lgm->tunnels, p[0]);
- hp = hash_get_pair (ngm->lisp_gpe_tunnel_by_key, &key);
- key_copy = (void *)(hp->key);
- hash_unset_mem (ngm->lisp_gpe_tunnel_by_key, &key);
- clib_mem_free (key_copy);
+ mhash_unset(&lgm->lisp_gpe_tunnel_by_key, &key, 0);
- vec_free (t->rewrite);
- pool_put (ngm->tunnels, t);
+ vec_free(t->rewrite);
+ pool_put(lgm->tunnels, t);
}
- if (sw_if_indexp)
- *sw_if_indexp = sw_if_index;
-
return 0;
}
-static u32 fib_index_from_fib_id (u32 fib_id)
+static int
+add_del_negative_fwd_entry (lisp_gpe_main_t * lgm,
+ vnet_lisp_gpe_add_del_fwd_entry_args_t * a)
{
- ip4_main_t * im = &ip4_main;
- uword * p;
+ ip_adjacency_t adj;
+ ip_prefix_t * dpref = &gid_address_ippref(&a->deid);
+ ip_prefix_t * spref = &gid_address_ippref(&a->seid);
+
+ /* setup adjacency for eid */
+ memset (&adj, 0, sizeof(adj));
+ adj.n_adj = 1;
+
+ /* fill in 'legal' data to avoid issues */
+ adj.lookup_next_index = (ip_prefix_version(dpref) == IP4) ?
+ lgm->ip4_lookup_next_lgpe_ip4_lookup :
+ lgm->ip6_lookup_next_lgpe_ip6_lookup;
- p = hash_get (im->fib_index_by_table_id, fib_id);
- if (!p)
- return ~0;
+ adj.rewrite_header.sw_if_index = ~0;
+ adj.rewrite_header.next_index = ~0;
- return p[0];
+ switch (a->action)
+ {
+ case NO_ACTION:
+ /* TODO update timers? */
+ case FORWARD_NATIVE:
+ /* TODO check if route/next-hop for eid exists in fib and add
+ * more specific for the eid with the next-hop found */
+ case SEND_MAP_REQUEST:
+ /* insert tunnel that always sends map-request */
+ adj.explicit_fib_index = (ip_prefix_version(dpref) == IP4) ?
+ LGPE_IP4_LOOKUP_NEXT_LISP_CP_LOOKUP:
+ LGPE_IP6_LOOKUP_NEXT_LISP_CP_LOOKUP;
+ /* add/delete route for prefix */
+ return ip_sd_fib_add_del_route (lgm, dpref, spref, a->table_id, &adj,
+ a->is_add);
+ case DROP:
+ /* for drop fwd entries, just add route, no need to add encap tunnel */
+ adj.explicit_fib_index = (ip_prefix_version(dpref) == IP4 ?
+ LGPE_IP4_LOOKUP_NEXT_DROP : LGPE_IP6_LOOKUP_NEXT_DROP);
+
+ /* add/delete route for prefix */
+ return ip_sd_fib_add_del_route (lgm, dpref, spref, a->table_id, &adj,
+ a->is_add);
+ default:
+ return -1;
+ }
}
-static uword unformat_decap_next (unformat_input_t * input, va_list * args)
+int
+vnet_lisp_gpe_add_del_fwd_entry (vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
+ u32 * hw_if_indexp)
{
- u32 * result = va_arg (*args, u32 *);
- u32 tmp;
-
- if (unformat (input, "drop"))
- *result = LISP_GPE_INPUT_NEXT_DROP;
- else if (unformat (input, "ip4"))
- *result = LISP_GPE_INPUT_NEXT_IP4_INPUT;
- else if (unformat (input, "ip6"))
- *result = LISP_GPE_INPUT_NEXT_IP6_INPUT;
- else if (unformat (input, "ethernet"))
- *result = LISP_GPE_INPUT_NEXT_IP6_INPUT;
- else if (unformat (input, "lisp-gpe"))
- *result = LISP_GPE_INPUT_NEXT_LISP_GPE_ENCAP;
- else if (unformat (input, "%d", &tmp))
- *result = tmp;
- else
- return 0;
- return 1;
+ lisp_gpe_main_t * lgm = &lisp_gpe_main;
+ ip_adjacency_t adj, * adjp;
+ u32 adj_index, rv, tun_index = ~0;
+ ip_prefix_t * dpref, * spref;
+ uword * lookup_next_index, * lgpe_sw_if_index, * lnip;
+ u8 ip_ver;
+
+ if (vnet_lisp_gpe_enable_disable_status() == 0)
+ {
+ clib_warning ("LISP is disabled!");
+ return VNET_API_ERROR_LISP_DISABLED;
+ }
+
+ /* treat negative fwd entries separately */
+ if (a->is_negative)
+ return add_del_negative_fwd_entry (lgm, a);
+
+ dpref = &gid_address_ippref(&a->deid);
+ spref = &gid_address_ippref(&a->seid);
+ ip_ver = ip_prefix_version(dpref);
+
+ /* add/del tunnel to tunnels pool and prepares rewrite */
+ rv = add_del_ip_tunnel (a, &tun_index);
+ if (rv)
+ return rv;
+
+ /* setup adjacency for eid */
+ memset (&adj, 0, sizeof(adj));
+ adj.n_adj = 1;
+
+ /* fill in lookup_next_index with a 'legal' value to avoid problems */
+ adj.lookup_next_index = (ip_ver == IP4) ?
+ lgm->ip4_lookup_next_lgpe_ip4_lookup :
+ lgm->ip6_lookup_next_lgpe_ip6_lookup;
+
+ if (a->is_add)
+ {
+ /* send packets that hit this adj to lisp-gpe interface output node in
+ * requested vrf. */
+ lnip = (ip_ver == IP4) ?
+ lgm->lgpe_ip4_lookup_next_index_by_table_id :
+ lgm->lgpe_ip6_lookup_next_index_by_table_id;
+ lookup_next_index = hash_get(lnip, a->table_id);
+ lgpe_sw_if_index = hash_get(lgm->lisp_gpe_hw_if_index_by_table_id,
+ a->table_id);
+
+ /* the assumption is that the interface must've been created before
+ * programming the dp */
+ ASSERT(lookup_next_index != 0);
+ ASSERT(lgpe_sw_if_index != 0);
+
+ /* hijack explicit fib index to store lisp interface node index and
+ * if_address_index for the tunnel index */
+ adj.explicit_fib_index = lookup_next_index[0];
+ adj.if_address_index = tun_index;
+ adj.rewrite_header.sw_if_index = lgpe_sw_if_index[0];
+ }
+
+ /* add/delete route for prefix */
+ rv = ip_sd_fib_add_del_route (lgm, dpref, spref, a->table_id, &adj,
+ a->is_add);
+
+ /* check that everything worked */
+ if (CLIB_DEBUG && a->is_add)
+ {
+ adj_index = ip_sd_fib_get_route (lgm, dpref, spref, a->table_id);
+ ASSERT(adj_index != 0);
+
+ adjp = ip_get_adjacency ((ip_ver == IP4) ? lgm->lm4 : lgm->lm6,
+ adj_index);
+
+ ASSERT(adjp != 0);
+ ASSERT(adjp->if_address_index == tun_index);
+ }
+
+ return rv;
}
static clib_error_t *
-lisp_gpe_add_del_tunnel_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+lisp_gpe_add_del_fwd_entry_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, * line_input = &_line_input;
- ip4_address_t src, dst;
u8 is_add = 1;
- u8 src_set = 0;
- u8 dst_set = 0;
- u32 encap_fib_index = 0;
- u32 decap_fib_index = 0;
- u8 next_protocol = LISP_GPE_NEXT_PROTOCOL_IP4;
- u32 decap_next_index = LISP_GPE_INPUT_NEXT_IP4_INPUT;
- u8 flags = LISP_GPE_FLAGS_P;
- u8 ver_res = 0;
- u8 res = 0;
- u32 iid = 0;
- u8 iid_set = 0;
- u32 tmp;
+ ip_address_t slocator, dlocator, *slocators = 0, *dlocators = 0;
+ ip_prefix_t * prefp;
+ gid_address_t * eids = 0, eid;
+ clib_error_t * error = 0;
+ u32 i;
int rv;
- vnet_lisp_gpe_add_del_tunnel_args_t _a, * a = &_a;
-
+
+ prefp = &gid_address_ippref(&eid);
+
/* Get a line of input. */
if (! unformat_user (input, unformat_line_input, line_input))
return 0;
- while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) {
- if (unformat (line_input, "del"))
- is_add = 0;
- else if (unformat (line_input, "src %U",
- unformat_ip4_address, &src))
- src_set = 1;
- else if (unformat (line_input, "dst %U",
- unformat_ip4_address, &dst))
- dst_set = 1;
- else if (unformat (line_input, "encap-vrf-id %d", &tmp))
- {
- encap_fib_index = fib_index_from_fib_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))
- {
- decap_fib_index = fib_index_from_fib_id (tmp);
- if (decap_fib_index == ~0)
- return clib_error_return (0, "nonexistent decap fib id %d", tmp);
- }
- else if (unformat (line_input, "decap-next %U", unformat_decap_next,
- &decap_next_index))
- ;
- else if (unformat(line_input, "next-ip4"))
- next_protocol = 1;
- else if (unformat(line_input, "next-ip6"))
- next_protocol = 2;
- else if (unformat(line_input, "next-ethernet"))
- next_protocol = 3;
- else if (unformat(line_input, "next-nsh"))
- next_protocol = 4;
- /* Allow the user to specify anything they want in the LISP hdr */
- else if (unformat (line_input, "ver_res %x", &tmp))
- ver_res = tmp;
- else if (unformat (line_input, "res %x", &tmp))
- res = tmp;
- else if (unformat (line_input, "flags %x", &tmp))
- flags = tmp;
- else if (unformat (line_input, "n-bit"))
- flags |= LISP_GPE_FLAGS_N;
- else if (unformat (line_input, "l-bit"))
- flags |= LISP_GPE_FLAGS_L;
- else if (unformat (line_input, "e-bit"))
- flags |= LISP_GPE_FLAGS_E;
- else if (unformat (line_input, "v-bit"))
- flags |= LISP_GPE_FLAGS_V;
- else if (unformat (line_input, "i-bit"))
- flags |= LISP_GPE_FLAGS_V;
- else if (unformat (line_input, "not-p-bit"))
- flags &= ~LISP_GPE_FLAGS_P;
- else if (unformat (line_input, "p-bit"))
- flags |= LISP_GPE_FLAGS_P;
- else if (unformat (line_input, "o-bit"))
- flags |= LISP_GPE_FLAGS_O;
- else if (unformat (line_input, "iidx %x", &iid))
- iid_set = 1;
- else if (unformat (line_input, "iid %d", &iid))
- iid_set = 1;
- else
- return clib_error_return (0, "parse error: '%U'",
- format_unformat_error, line_input);
- }
-
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "del"))
+ is_add = 0;
+ else if (unformat (line_input, "add"))
+ is_add = 1;
+ else if (unformat (line_input, "eid %U slocator %U dlocator %U",
+ unformat_ip_prefix, prefp,
+ unformat_ip_address, &slocator,
+ unformat_ip_address, &dlocator))
+ {
+ vec_add1 (eids, eid);
+ vec_add1 (slocators, slocator);
+ vec_add1 (dlocators, dlocator);
+ }
+ else
+ {
+ error = unformat_parse_error (line_input);
+ goto done;
+ }
+ }
unformat_free (line_input);
- if (src_set == 0)
- return clib_error_return (0, "tunnel src address not specified");
+ if (vec_len (eids) + vec_len (slocators) == 0)
+ {
+ error = clib_error_return (0, "expected ip4/ip6 eids/locators.");
+ goto done;
+ }
- if (dst_set == 0)
- return clib_error_return (0, "tunnel dst address not specified");
+ if (vec_len (eids) != vec_len (slocators))
+ {
+ error = clib_error_return (0, "number of eids not equal to that of "
+ "locators.");
+ goto done;
+ }
- if (iid_set == 0)
- return clib_error_return (0, "iid not specified");
+ for (i = 0; i < vec_len(eids); i++)
+ {
+ vnet_lisp_gpe_add_del_fwd_entry_args_t a;
+ memset (&a, 0, sizeof(a));
+
+ a.is_add = is_add;
+ a.deid = eids[i];
+ a.slocator = slocators[i];
+ a.dlocator = dlocators[i];
+ rv = vnet_lisp_gpe_add_del_fwd_entry (&a, 0);
+ if (0 != rv)
+ {
+ error = clib_error_return(0, "failed to %s gpe maptunnel!",
+ is_add ? "add" : "delete");
+ break;
+ }
+ }
- memset (a, 0, sizeof (*a));
+ done:
+ vec_free(eids);
+ vec_free(slocators);
+ vec_free(dlocators);
+ return error;
+}
- a->is_add = is_add;
+VLIB_CLI_COMMAND (lisp_gpe_add_del_fwd_entry_command, static) = {
+ .path = "lisp gpe maptunnel",
+ .short_help = "lisp gpe maptunnel eid <eid> sloc <src-locator> "
+ "dloc <dst-locator> [del]",
+ .function = lisp_gpe_add_del_fwd_entry_command_fn,
+};
-#define _(x) a->x = x;
- foreach_copy_field;
-#undef _
-
- rv = vnet_lisp_gpe_add_del_tunnel (a, 0 /* hw_if_indexp */);
+static u8 *
+format_decap_next (u8 * s, va_list * args)
+{
+ u32 next_index = va_arg (*args, u32);
- switch(rv)
+ switch (next_index)
{
- case 0:
- break;
- case VNET_API_ERROR_INVALID_DECAP_NEXT:
- return clib_error_return (0, "invalid decap-next...");
+ case LISP_GPE_INPUT_NEXT_DROP:
+ return format (s, "drop");
+ case LISP_GPE_INPUT_NEXT_IP4_INPUT:
+ return format (s, "ip4");
+ case LISP_GPE_INPUT_NEXT_IP6_INPUT:
+ return format (s, "ip6");
+ default:
+ return format (s, "unknown %d", next_index);
+ }
+ return s;
+}
- case VNET_API_ERROR_TUNNEL_EXIST:
- return clib_error_return (0, "tunnel already exists...");
+u8 *
+format_lisp_gpe_tunnel (u8 * s, va_list * args)
+{
+ lisp_gpe_tunnel_t * t = va_arg (*args, lisp_gpe_tunnel_t *);
+ lisp_gpe_main_t * lgm = &lisp_gpe_main;
- case VNET_API_ERROR_NO_SUCH_ENTRY:
- return clib_error_return (0, "tunnel does not exist...");
+ s = format (s,
+ "[%d] %U (src) %U (dst) fibs: encap %d, decap %d",
+ t - lgm->tunnels,
+ format_ip_address, &t->src,
+ format_ip_address, &t->dst,
+ t->encap_fib_index,
+ t->decap_fib_index);
- default:
- return clib_error_return
- (0, "vnet_lisp_gpe_add_del_tunnel returned %d", rv);
- }
+ s = format (s, " decap next %U\n", format_decap_next, t->decap_next_index);
+ s = format (s, "lisp ver %d ", (t->ver_res>>6));
- return 0;
-}
+#define _(n,v) if (t->flags & v) s = format (s, "%s-bit ", #n);
+ foreach_lisp_gpe_flag_bit;
+#undef _
-VLIB_CLI_COMMAND (create_lisp_gpe_tunnel_command, static) = {
- .path = "lisp gpe tunnel",
- .short_help =
- "lisp gpe tunnel src <ip4-addr> dst <ip4-addr> iidx <0xnn> | iid <nn>\n"
- " [encap-fib-id <nn>] [decap-fib-id <nn>]\n"
- " [n-bit][l-bit][e-bit][v-bit][i-bit][p-bit][not-p-bit][o-bit]\n"
- " [next-ip4][next-ip6][next-ethernet][next-nsh]\n"
- " [decap-next [ip4|ip6|ethernet|nsh-encap|<nn>]][del]\n",
- .function = lisp_gpe_add_del_tunnel_command_fn,
-};
+ s = format (s, "next_protocol %d ver_res %x res %x\n",
+ t->next_protocol, t->ver_res, t->res);
+
+ s = format (s, "iid %d (0x%x)\n", t->vni, t->vni);
+ return s;
+}
static clib_error_t *
show_lisp_gpe_tunnel_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
- lisp_gpe_main_t * ngm = &lisp_gpe_main;
+ lisp_gpe_main_t * lgm = &lisp_gpe_main;
lisp_gpe_tunnel_t * t;
- if (pool_elts (ngm->tunnels) == 0)
+ if (pool_elts (lgm->tunnels) == 0)
vlib_cli_output (vm, "No lisp-gpe tunnels configured...");
- pool_foreach (t, ngm->tunnels,
+ pool_foreach (t, lgm->tunnels,
({
vlib_cli_output (vm, "%U", format_lisp_gpe_tunnel, t);
}));
.function = show_lisp_gpe_tunnel_command_fn,
};
-clib_error_t *lisp_gpe_init (vlib_main_t *vm)
+u8
+vnet_lisp_gpe_enable_disable_status(void)
{
- lisp_gpe_main_t *ngm = &lisp_gpe_main;
-
- ngm->vnet_main = vnet_get_main();
- ngm->vlib_main = vm;
-
- ngm->lisp_gpe_tunnel_by_key
- = hash_create_mem (0, sizeof(lisp_gpe_tunnel_key_t), sizeof (uword));
+ lisp_gpe_main_t * lgm = &lisp_gpe_main;
+
+ return lgm->is_en;
+}
+
+clib_error_t *
+vnet_lisp_gpe_enable_disable (vnet_lisp_gpe_enable_disable_args_t * a)
+{
+ lisp_gpe_main_t * lgm = &lisp_gpe_main;
+ vnet_main_t * vnm = lgm->vnet_main;
+
+ if (a->is_en)
+ {
+ /* add lgpe_ip4_lookup as possible next_node for ip4 lookup */
+ if (lgm->ip4_lookup_next_lgpe_ip4_lookup == ~0)
+ {
+ lgm->ip4_lookup_next_lgpe_ip4_lookup = vlib_node_add_next (
+ vnm->vlib_main, ip4_lookup_node.index,
+ lgpe_ip4_lookup_node.index);
+ }
+ /* add lgpe_ip6_lookup as possible next_node for ip6 lookup */
+ if (lgm->ip6_lookup_next_lgpe_ip6_lookup == ~0)
+ {
+ lgm->ip6_lookup_next_lgpe_ip6_lookup = vlib_node_add_next (
+ vnm->vlib_main, ip6_lookup_node.index,
+ lgpe_ip6_lookup_node.index);
+ }
+ else
+ {
+ /* ask cp to re-add ifaces and defaults */
+ }
+
+ lgm->is_en = 1;
+ }
+ else
+ {
+ CLIB_UNUSED(uword * val);
+ hash_pair_t * p;
+ u32 * table_ids = 0, * table_id;
+ lisp_gpe_tunnel_key_t * tunnels = 0, * tunnel;
+ vnet_lisp_gpe_add_del_fwd_entry_args_t _at, * at = &_at;
+ vnet_lisp_gpe_add_del_iface_args_t _ai, * ai= &_ai;
+
+ /* remove all tunnels */
+ mhash_foreach(tunnel, val, &lgm->lisp_gpe_tunnel_by_key, ({
+ vec_add1(tunnels, tunnel[0]);
+ }));
+
+ vec_foreach(tunnel, tunnels) {
+ memset(at, 0, sizeof(at[0]));
+ at->is_add = 0;
+ gid_address_type(&at->deid) = GID_ADDR_IP_PREFIX;
+ ip_prefix_copy(&gid_address_ippref(&at->deid), &tunnel->eid);
+ ip_address_copy(&at->dlocator, &tunnel->dst_loc);
+ vnet_lisp_gpe_add_del_fwd_entry (at, 0);
+ }
+ vec_free(tunnels);
+
+ /* disable all ifaces */
+ hash_foreach_pair(p, lgm->lisp_gpe_hw_if_index_by_table_id, ({
+ vec_add1(table_ids, p->key);
+ }));
+
+ vec_foreach(table_id, table_ids) {
+ ai->is_add = 0;
+ ai->table_id = table_id[0];
+
+ /* disables interface and removes defaults */
+ vnet_lisp_gpe_add_del_iface(ai, 0);
+ }
+ vec_free(table_ids);
+ lgm->is_en = 0;
+ }
+
+ return 0;
+}
+
+static clib_error_t *
+lisp_gpe_enable_disable_command_fn (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, * line_input = &_line_input;
+ u8 is_en = 1;
+ vnet_lisp_gpe_enable_disable_args_t _a, * a = &_a;
+
+ /* Get a line of input. */
+ if (! unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "enable"))
+ is_en = 1;
+ else if (unformat (line_input, "disable"))
+ is_en = 0;
+ else
+ {
+ return clib_error_return (0, "parse error: '%U'",
+ format_unformat_error, line_input);
+ }
+ }
+ a->is_en = is_en;
+ return vnet_lisp_gpe_enable_disable (a);
+}
+
+VLIB_CLI_COMMAND (enable_disable_lisp_gpe_command, static) = {
+ .path = "lisp gpe",
+ .short_help = "lisp gpe [enable|disable]",
+ .function = lisp_gpe_enable_disable_command_fn,
+};
+
+static clib_error_t *
+lisp_show_iface_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ lisp_gpe_main_t * lgm = &lisp_gpe_main;
+ hash_pair_t * p;
+
+ vlib_cli_output (vm, "%=10s%=12s", "vrf", "hw_if_index");
+ hash_foreach_pair (p, lgm->lisp_gpe_hw_if_index_by_table_id, ({
+ vlib_cli_output (vm, "%=10d%=10d", p->key, p->value[0]);
+ }));
+ return 0;
+}
+
+VLIB_CLI_COMMAND (lisp_show_iface_command) = {
+ .path = "show lisp gpe interface",
+ .short_help = "show lisp gpe interface",
+ .function = lisp_show_iface_command_fn,
+};
+
+clib_error_t *
+lisp_gpe_init (vlib_main_t *vm)
+{
+ lisp_gpe_main_t * lgm = &lisp_gpe_main;
+ clib_error_t * error = 0;
+
+ if ((error = vlib_call_init_function (vm, ip_main_init)))
+ return error;
+
+ if ((error = vlib_call_init_function (vm, ip4_lookup_init)))
+ return error;
+
+ lgm->vnet_main = vnet_get_main();
+ lgm->vlib_main = vm;
+ lgm->im4 = &ip4_main;
+ lgm->im6 = &ip6_main;
+ lgm->lm4 = &ip4_main.lookup_main;
+ lgm->lm6 = &ip6_main.lookup_main;
+ lgm->ip4_lookup_next_lgpe_ip4_lookup = ~0;
+ lgm->ip6_lookup_next_lgpe_ip6_lookup = ~0;
+
+ mhash_init (&lgm->lisp_gpe_tunnel_by_key, sizeof(uword),
+ sizeof(lisp_gpe_tunnel_key_t));
udp_register_dst_port (vm, UDP_DST_PORT_lisp_gpe,
- lisp_gpe_input_node.index, 1 /* is_ip4 */);
+ lisp_gpe_ip4_input_node.index, 1 /* is_ip4 */);
+ udp_register_dst_port (vm, UDP_DST_PORT_lisp_gpe6,
+ lisp_gpe_ip6_input_node.index, 0 /* is_ip4 */);
return 0;
}
+u8 *
+format_vnet_lisp_gpe_status (u8 * s, va_list * args)
+{
+ lisp_gpe_main_t * lgm = &lisp_gpe_main;
+ return format (s, "%s", lgm->is_en ? "enabled" : "disabled");
+}
+
VLIB_INIT_FUNCTION(lisp_gpe_init);
-
Code Review / vpp.git / blobdiff