dp_add_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index)
{
vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a;
- mapping_t *src_map, *dst_map;
+ gid_address_t *rmt_eid, *lcl_eid;
+ mapping_t *lcl_map, *rmt_map;
u32 sw_if_index;
uword *feip = 0, *dpid;
fwd_entry_t *fe;
u8 type, is_src_dst = 0;
+ int rv;
memset (a, 0, sizeof (*a));
if (feip)
dp_del_fwd_entry (lcm, src_map_index, dst_map_index);
+ /*
+ * Determine local mapping and eid
+ */
if (lcm->lisp_pitr)
- src_map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
+ lcl_map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
else
- src_map = pool_elt_at_index (lcm->mapping_pool, src_map_index);
- dst_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index);
-
- /* insert data plane forwarding entry */
+ lcl_map = pool_elt_at_index (lcm->mapping_pool, src_map_index);
+ lcl_eid = &lcl_map->eid;
+
+ /*
+ * Determine remote mapping and eid
+ */
+ rmt_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index);
+ rmt_eid = &rmt_map->eid;
+
+ /*
+ * Build and insert data plane forwarding entry
+ */
a->is_add = 1;
if (MR_MODE_SRC_DST == lcm->map_request_mode)
{
- if (GID_ADDR_SRC_DST == gid_address_type (&dst_map->eid))
+ if (GID_ADDR_SRC_DST == gid_address_type (rmt_eid))
{
- gid_address_sd_to_flat (&a->rmt_eid, &dst_map->eid,
- &gid_address_sd_dst (&dst_map->eid));
- gid_address_sd_to_flat (&a->lcl_eid, &dst_map->eid,
- &gid_address_sd_src (&dst_map->eid));
+ gid_address_sd_to_flat (&a->rmt_eid, rmt_eid,
+ &gid_address_sd_dst (rmt_eid));
+ gid_address_sd_to_flat (&a->lcl_eid, rmt_eid,
+ &gid_address_sd_src (rmt_eid));
}
else
{
- gid_address_copy (&a->rmt_eid, &dst_map->eid);
- gid_address_copy (&a->lcl_eid, &src_map->eid);
+ gid_address_copy (&a->rmt_eid, rmt_eid);
+ gid_address_copy (&a->lcl_eid, lcl_eid);
}
is_src_dst = 1;
}
else
- gid_address_copy (&a->rmt_eid, &dst_map->eid);
+ gid_address_copy (&a->rmt_eid, rmt_eid);
a->vni = gid_address_vni (&a->rmt_eid);
}
/* find best locator pair that 1) verifies LISP policy 2) are connected */
- if (0 == get_locator_pairs (lcm, src_map, dst_map, &a->locator_pairs))
+ rv = get_locator_pairs (lcm, lcl_map, rmt_map, &a->locator_pairs);
+
+ /* Either rmt mapping is negative or we can't find underlay path.
+ * Try again with petr if configured */
+ if (rv == 0 && (lcm->flags & LISP_FLAG_USE_PETR))
{
- /* negative entry */
- a->is_negative = 1;
- a->action = dst_map->action;
+ rmt_map = lisp_get_petr_mapping (lcm);
+ rv = get_locator_pairs (lcm, lcl_map, rmt_map, &a->locator_pairs);
}
- /* TODO remove */
- u8 ipver = ip_prefix_version (&gid_address_ippref (&a->rmt_eid));
- a->decap_next_index = (ipver == IP4) ?
- LISP_GPE_INPUT_NEXT_IP4_INPUT : LISP_GPE_INPUT_NEXT_IP6_INPUT;
+ /* negative entry */
+ if (rv == 0)
+ {
+ a->is_negative = 1;
+ a->action = rmt_map->action;
+ }
vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
if (is_src_dst)
gid_address_copy (&fe->leid, &a->lcl_eid);
else
- gid_address_copy (&fe->leid, &src_map->eid);
+ gid_address_copy (&fe->leid, lcl_eid);
fe->is_src_dst = is_src_dst;
hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index,
local_mi = lcm->lisp_pitr ? lcm->pitr_map_index :
gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->leid);
-
if (GID_LOOKUP_MISS == local_mi)
{
clib_warning ("Local eid %U not found. Cannot add adjacency!",
return 0;
}
+/**
+ * Configure Proxy-ETR
+ *
+ * @param ip PETR's IP address
+ * @param is_add Flag that indicates if this is an addition or removal
+ *
+ * return 0 on success
+ */
+int
+vnet_lisp_use_petr (ip_address_t * ip, u8 is_add)
+{
+ lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
+ u32 ls_index = ~0;
+ mapping_t *m;
+ vnet_lisp_add_del_locator_set_args_t _ls_args, *ls_args = &_ls_args;
+ locator_t loc;
+
+ if (vnet_lisp_enable_disable_status () == 0)
+ {
+ clib_warning ("LISP is disabled!");
+ return VNET_API_ERROR_LISP_DISABLED;
+ }
+
+ memset (ls_args, 0, sizeof (*ls_args));
+
+ if (is_add)
+ {
+ /* Create dummy petr locator-set */
+ gid_address_from_ip (&loc.address, ip);
+ loc.priority = 1;
+ loc.state = loc.weight = 1;
+
+ ls_args->is_add = 1;
+ ls_args->index = ~0;
+ vec_add1 (ls_args->locators, loc);
+ vnet_lisp_add_del_locator_set (ls_args, &ls_index);
+
+ /* Add petr mapping */
+ pool_get (lcm->mapping_pool, m);
+ m->locator_set_index = ls_index;
+ lcm->petr_map_index = m - lcm->mapping_pool;
+
+ /* Enable use-petr */
+ lcm->flags |= LISP_FLAG_USE_PETR;
+ }
+ else
+ {
+ m = pool_elt_at_index (lcm->mapping_pool, lcm->petr_map_index);
+
+ /* Remove petr locator */
+ ls_args->is_add = 0;
+ ls_args->index = m->locator_set_index;
+ vnet_lisp_add_del_locator_set (ls_args, 0);
+
+ /* Remove petr mapping */
+ pool_put_index (lcm->mapping_pool, lcm->petr_map_index);
+
+ /* Disable use-petr */
+ lcm->flags &= ~LISP_FLAG_USE_PETR;
+ }
+ return 0;
+}
+
/* cleans locator to locator-set data and removes locators not part of
* any locator-set */
static void
m->authoritative, m->ttl,
1, 0 /* is_static */ , &dst_map_index);
+ if (dst_map_index == (u32) ~ 0)
+ continue;
+
/* try to program forwarding only if mapping saved or updated */
- if ((u32) ~ 0 != dst_map_index)
- {
- vnet_lisp_add_del_adjacency_args_t _adj_args, *adj_args = &_adj_args;
- memset (adj_args, 0, sizeof (adj_args[0]));
+ vnet_lisp_add_del_adjacency_args_t _adj_args, *adj_args = &_adj_args;
+ memset (adj_args, 0, sizeof (adj_args[0]));
- gid_address_copy (&adj_args->leid, &pmr->src);
- gid_address_copy (&adj_args->reid, &m->eid);
- adj_args->is_add = 1;
- if (vnet_lisp_add_del_adjacency (adj_args))
- clib_warning ("failed to add adjacency!");
+ gid_address_copy (&adj_args->leid, &pmr->src);
+ gid_address_copy (&adj_args->reid, &m->eid);
+ adj_args->is_add = 1;
+ if (vnet_lisp_add_del_adjacency (adj_args))
+ clib_warning ("failed to add adjacency!");
- if ((u32) ~ 0 != m->ttl)
- mapping_start_expiration_timer (lcm, dst_map_index, m->ttl * 60);
- }
+ if ((u32) ~ 0 != m->ttl)
+ mapping_start_expiration_timer (lcm, dst_map_index, m->ttl * 60);
}
/* remove pending map request entry */
lcm->vnet_main = vnet_get_main ();
lcm->mreq_itr_rlocs = ~0;
lcm->lisp_pitr = 0;
+ lcm->flags = 0;
memset (&lcm->active_map_resolver, 0, sizeof (lcm->active_map_resolver));
gid_dictionary_init (&lcm->mapping_index_by_gid);
_(LISP_GET_MAP_REQUEST_ITR_RLOCS, lisp_get_map_request_itr_rlocs) \
_(SHOW_LISP_PITR, show_lisp_pitr) \
_(SHOW_LISP_MAP_REQUEST_MODE, show_lisp_map_request_mode) \
+_(LISP_USE_PETR, lisp_use_petr) \
+_(SHOW_LISP_USE_PETR, show_lisp_use_petr) \
/** Used for transferring locators via VPP API */
/* *INDENT-OFF* */
REPLY_MACRO (VL_API_LISP_PITR_SET_LOCATOR_SET_REPLY);
}
+static void
+vl_api_lisp_use_petr_t_handler (vl_api_lisp_use_petr_t * mp)
+{
+ vl_api_lisp_use_petr_reply_t *rmp;
+ int rv = 0;
+ ip_address_t addr;
+
+ ip_address_set (&addr, &mp->address, mp->is_ip4 ? IP4 : IP6);
+ rv = vnet_lisp_use_petr (&addr, mp->is_add);
+
+ REPLY_MACRO (VL_API_LISP_USE_PETR_REPLY);
+}
+
+static void
+vl_api_show_lisp_use_petr_t_handler (vl_api_show_lisp_use_petr_t * mp)
+{
+ unix_shared_memory_queue_t *q = NULL;
+ vl_api_show_lisp_use_petr_reply_t *rmp = NULL;
+ lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
+ mapping_t *m;
+ locator_set_t *ls = 0;
+ int rv = 0;
+ locator_t *loc;
+
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (q == 0)
+ {
+ return;
+ }
+
+ rmp->status = lcm->flags & LISP_FLAG_USE_PETR;
+ if (rmp->status)
+ {
+ m = pool_elt_at_index (lcm->mapping_pool, lcm->petr_map_index);
+ if (~0 != m->locator_set_index)
+ {
+ ls =
+ pool_elt_at_index (lcm->locator_set_pool, m->locator_set_index);
+ loc = pool_elt_at_index (lcm->locator_pool, ls->locator_indices[0]);
+ gid_address_put (rmp->address, &loc->address);
+ rmp->is_ip4 = (gid_address_ip_version (&loc->address) == IP4);
+ }
+ }
+
+ REPLY_MACRO (VL_API_SHOW_LISP_USE_PETR_REPLY);
+}
+
static void
vl_api_lisp_add_del_map_request_itr_rlocs_t_handler
(vl_api_lisp_add_del_map_request_itr_rlocs_t * mp)
};
/* *INDENT-ON* */
+static clib_error_t *
+lisp_use_petr_set_locator_set_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ u8 is_add = 1, ip_set = 0;
+ unformat_input_t _line_input, *line_input = &_line_input;
+ clib_error_t *error = 0;
+ ip_address_t ip;
+
+ /* 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, "%U", unformat_ip_address, &ip))
+ ip_set = 1;
+ else if (unformat (line_input, "disable"))
+ is_add = 0;
+ else
+ return clib_error_return (0, "parse error");
+ }
+
+ if (!ip_set)
+ {
+ clib_warning ("No petr IP specified!");
+ goto done;
+ }
+
+ if (vnet_lisp_use_petr (&ip, is_add))
+ {
+ error = clib_error_return (0, "failed to %s petr!",
+ is_add ? "add" : "delete");
+ }
+
+done:
+ return error;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (lisp_use_petr_set_locator_set_command) = {
+ .path = "lisp use-petr",
+ .short_help = "lisp use-petr [disable] <petr-ip>",
+ .function = lisp_use_petr_set_locator_set_command_fn,
+};
+
+static clib_error_t *
+lisp_show_petr_command_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
+ mapping_t *m;
+ locator_set_t *ls;
+ locator_t *loc;
+ u8 *tmp_str = 0;
+ u8 use_petr = lcm->flags & LISP_FLAG_USE_PETR;
+ vlib_cli_output (vm, "%=20s%=16s", "petr", use_petr ? "ip" : "");
+
+ if (!use_petr)
+ {
+ vlib_cli_output (vm, "%=20s", "disable");
+ return 0;
+ }
+
+ if (~0 == lcm->petr_map_index)
+ {
+ tmp_str = format (0, "N/A");
+ }
+ else
+ {
+ m = pool_elt_at_index (lcm->mapping_pool, lcm->petr_map_index);
+ if (~0 != m->locator_set_index)
+ {
+ ls = pool_elt_at_index(lcm->locator_set_pool, m->locator_set_index);
+ loc = pool_elt_at_index (lcm->locator_pool, ls->locator_indices[0]);
+ tmp_str = format (0, "%U", format_ip_address, &loc->address);
+ }
+ else
+ {
+ tmp_str = format (0, "N/A");
+ }
+ }
+ vec_add1 (tmp_str, 0);
+
+ vlib_cli_output (vm, "%=20s%=16s", "enable", tmp_str);
+
+ vec_free (tmp_str);
+
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (lisp_show_petr_command) = {
+ .path = "show lisp petr",
+ .short_help = "Show petr",
+ .function = lisp_show_petr_command_fn,
+};
+
+/* *INDENT-ON* */
+
+/* *INDENT-ON* */
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / commitdiff