* limitations under the License.
*/
+#include <vlibmemory/api.h>
#include <vnet/lisp-cp/control.h>
#include <vnet/lisp-cp/packets.h>
#include <vnet/lisp-cp/lisp_msg_serdes.h>
#include <vnet/lisp-gpe/lisp_gpe.h>
+typedef struct
+{
+ u8 is_resend;
+ gid_address_t seid;
+ gid_address_t deid;
+ u8 smr_invoked;
+} map_request_args_t;
+
+static int
+queue_map_request (gid_address_t * seid, gid_address_t * deid,
+ u8 smr_invoked, u8 is_resend);
+
+ip_interface_address_t *
+ip_interface_get_first_interface_address (ip_lookup_main_t *lm, u32 sw_if_index,
+ u8 loop)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_sw_interface_t * swif = vnet_get_sw_interface (vnm, sw_if_index);
+ if (loop && swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
+ sw_if_index = swif->unnumbered_sw_if_index;
+ u32 ia =
+ (vec_len((lm)->if_address_pool_index_by_sw_if_index) > (sw_if_index)) ?
+ vec_elt((lm)->if_address_pool_index_by_sw_if_index, (sw_if_index)) :
+ (u32) ~0;
+ return pool_elt_at_index((lm)->if_address_pool, ia);
+}
+
+void *
+ip_interface_get_first_address (ip_lookup_main_t * lm, u32 sw_if_index,
+ u8 version)
+{
+ ip_interface_address_t * ia;
+
+ ia = ip_interface_get_first_interface_address (lm, sw_if_index, 1);
+ if (!ia)
+ return 0;
+ return ip_interface_address_get_address (lm, ia);
+}
+
+int
+ip_interface_get_first_ip_address (lisp_cp_main_t * lcm, u32 sw_if_index,
+ u8 version, ip_address_t * result)
+{
+ ip_lookup_main_t * lm;
+ void * addr;
+
+ lm = (version == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
+ addr = ip_interface_get_first_address (lm, sw_if_index, version);
+ if (!addr)
+ return 0;
+
+ ip_address_set (result, addr, version);
+ return 1;
+}
+
+static u32
+ip_fib_lookup_with_table (lisp_cp_main_t * lcm, u32 fib_index,
+ ip_address_t * dst)
+{
+ if (ip_addr_version (dst) == IP4)
+ return ip4_fib_lookup_with_table (lcm->im4, fib_index, &ip_addr_v4(dst),
+ 0);
+ else
+ return ip6_fib_lookup_with_table (lcm->im6, fib_index, &ip_addr_v6(dst));
+}
+
+u32
+ip_fib_get_egress_iface_for_dst_with_lm (lisp_cp_main_t * lcm,
+ ip_address_t * dst,
+ ip_lookup_main_t * lm)
+{
+ u32 adj_index;
+ ip_adjacency_t * adj;
+
+ adj_index = ip_fib_lookup_with_table (lcm, 0, dst);
+ adj = ip_get_adjacency (lm, adj_index);
+
+ if (adj == 0)
+ return ~0;
+
+ /* we only want outgoing routes */
+ if (adj->lookup_next_index != IP_LOOKUP_NEXT_ARP
+ && adj->lookup_next_index != IP_LOOKUP_NEXT_REWRITE)
+ return ~0;
+
+ return adj->rewrite_header.sw_if_index;
+}
+
+/**
+ * Find the sw_if_index of the interface that would be used to egress towards
+ * dst.
+ */
+u32
+ip_fib_get_egress_iface_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst)
+{
+ ip_lookup_main_t * lm;
+
+ lm = ip_addr_version (dst) == IP4 ?
+ &lcm->im4->lookup_main : &lcm->im6->lookup_main;
+
+ return ip_fib_get_egress_iface_for_dst_with_lm (lcm, dst, lm);
+}
+
+/**
+ * Find first IP of the interface that would be used to egress towards dst.
+ * Returns 1 if the address is found 0 otherwise.
+ */
+int
+ip_fib_get_first_egress_ip_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst,
+ ip_address_t * result)
+{
+ u32 si;
+ ip_lookup_main_t * lm;
+ void * addr = 0;
+ u8 ipver;
+
+ ASSERT(result != 0);
+
+ ipver = ip_addr_version(dst);
+
+ lm = (ipver == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
+ si = ip_fib_get_egress_iface_for_dst_with_lm (lcm, dst, lm);
+
+ if ((u32) ~0 == si)
+ return 0;
+
+ /* find the first ip address */
+ addr = ip_interface_get_first_address (lm, si, ipver);
+ if (0 == addr)
+ return 0;
+
+ ip_address_set (result, addr, ipver);
+ return 1;
+}
+
+static int
+dp_add_del_iface (lisp_cp_main_t * lcm, u32 vni, u8 is_l2, u8 is_add)
+{
+ uword * dp_table, * intf;
+ vnet_lisp_gpe_add_del_iface_args_t _ai, *ai = &_ai;
+
+ if (!is_l2)
+ {
+ dp_table = hash_get(lcm->table_id_by_vni, vni);
+
+ if (!dp_table)
+ {
+ clib_warning("vni %d not associated to a vrf!", vni);
+ return VNET_API_ERROR_INVALID_VALUE;
+ }
+ }
+ else
+ {
+ dp_table = hash_get(lcm->bd_id_by_vni, vni);
+ if (!dp_table)
+ {
+ clib_warning("vni %d not associated to a bridge domain!", vni);
+ return VNET_API_ERROR_INVALID_VALUE;
+ }
+ }
+
+ intf = hash_get(is_l2 ? lcm->l2_dp_intf_by_vni :lcm->dp_intf_by_vni, vni);
+
+ /* enable/disable data-plane interface */
+ if (is_add)
+ {
+ /* create interface */
+ if (!intf)
+ {
+ ai->is_add = 1;
+ ai->vni = vni;
+ ai->is_l2 = is_l2;
+ ai->dp_table = dp_table[0];
+
+ vnet_lisp_gpe_add_del_iface (ai, 0);
+
+ /* keep track of vnis for which interfaces have been created */
+ hash_set(lcm->dp_intf_by_vni, vni, 1);
+ }
+ }
+ else
+ {
+ if (intf == 0)
+ {
+ clib_warning("interface for vni %d doesn't exist!", vni);
+ return VNET_API_ERROR_INVALID_VALUE;
+ }
+
+ ai->is_add = 0;
+ ai->vni = vni;
+ ai->dp_table = dp_table[0];
+ vnet_lisp_gpe_add_del_iface (ai, 0);
+ hash_unset(lcm->dp_intf_by_vni, vni);
+ }
+
+ return 0;
+}
+
static void
-add_fwd_entry (lisp_cp_main_t* lcm, u32 src_map_index, u32 dst_map_index);
+dp_del_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;
+ fwd_entry_t * fe = 0;
+ uword * feip = 0;
+ memset(a, 0, sizeof(*a));
+
+ feip = hash_get(lcm->fwd_entry_by_mapping_index, dst_map_index);
+ if (!feip)
+ return;
+
+ fe = pool_elt_at_index(lcm->fwd_entry_pool, feip[0]);
+
+ /* delete dp fwd entry */
+ u32 sw_if_index;
+ a->is_add = 0;
+ a->locator_pairs = fe->locator_pairs;
+ a->vni = gid_address_vni(&a->rmt_eid);
+ gid_address_copy(&a->rmt_eid, &fe->deid);
+
+ vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
+
+ /* delete entry in fwd table */
+ hash_unset(lcm->fwd_entry_by_mapping_index, dst_map_index);
+ vec_free(fe->locator_pairs);
+ pool_put(lcm->fwd_entry_pool, fe);
+}
+
+/**
+ * Finds first remote locator with best (lowest) priority that has a local
+ * peer locator with an underlying route to it.
+ *
+ */
+static u32
+get_locator_pairs (lisp_cp_main_t* lcm, mapping_t * lcl_map,
+ mapping_t * rmt_map, locator_pair_t ** locator_pairs)
+{
+ u32 i, limitp = 0, li, found = 0, esi;
+ locator_set_t * rmt_ls, * lcl_ls;
+ ip_address_t _lcl_addr, * lcl_addr = &_lcl_addr;
+ locator_t * lp, * rmt = 0;
+ uword * checked = 0;
+ locator_pair_t pair;
+
+ rmt_ls = pool_elt_at_index(lcm->locator_set_pool, rmt_map->locator_set_index);
+ lcl_ls = pool_elt_at_index(lcm->locator_set_pool, lcl_map->locator_set_index);
+
+ if (!rmt_ls || vec_len(rmt_ls->locator_indices) == 0)
+ return 0;
+
+ while (1)
+ {
+ rmt = 0;
+
+ /* find unvisited remote locator with best priority */
+ for (i = 0; i < vec_len(rmt_ls->locator_indices); i++)
+ {
+ if (0 != hash_get(checked, i))
+ continue;
+
+ li = vec_elt(rmt_ls->locator_indices, i);
+ lp = pool_elt_at_index(lcm->locator_pool, li);
+
+ /* we don't support non-IP locators for now */
+ if (gid_address_type(&lp->address) != GID_ADDR_IP_PREFIX)
+ continue;
+
+ if ((found && lp->priority == limitp)
+ || (!found && lp->priority >= limitp))
+ {
+ rmt = lp;
+
+ /* don't search for locators with lower priority and don't
+ * check this locator again*/
+ limitp = lp->priority;
+ hash_set(checked, i, 1);
+ break;
+ }
+ }
+ /* check if a local locator with a route to remote locator exists */
+ if (rmt != 0)
+ {
+ /* find egress sw_if_index for rmt locator */
+ esi = ip_fib_get_egress_iface_for_dst (
+ lcm, &gid_address_ip(&rmt->address));
+ if ((u32) ~0 == esi)
+ continue;
+
+ for (i = 0; i < vec_len(lcl_ls->locator_indices); i++)
+ {
+ li = vec_elt (lcl_ls->locator_indices, i);
+ locator_t * sl = pool_elt_at_index (lcm->locator_pool, li);
+
+ /* found local locator with the needed sw_if_index*/
+ if (sl->sw_if_index == esi)
+ {
+ /* and it has an address */
+ if (0 == ip_interface_get_first_ip_address (lcm,
+ sl->sw_if_index,
+ gid_address_ip_version(&rmt->address), lcl_addr))
+ continue;
+
+ memset(&pair, 0, sizeof(pair));
+ ip_address_copy (&pair.rmt_loc,
+ &gid_address_ip(&rmt->address));
+ ip_address_copy(&pair.lcl_loc, lcl_addr);
+ pair.weight = rmt->weight;
+ vec_add1(locator_pairs[0], pair);
+ found = 1;
+ }
+ }
+ }
+ else
+ break;
+ }
+
+ hash_free(checked);
+ return found;
+}
static void
-del_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index);
+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;
+ u32 sw_if_index;
+ uword * feip = 0, * dpid;
+ fwd_entry_t* fe;
+ u8 type;
-static u8
-compare_locators (lisp_cp_main_t *lcm, u32 * old_ls_indexes,
- locator_t * new_locators);
+ memset (a, 0, sizeof(*a));
-/* Stores mapping in map-cache. It does NOT program data plane forwarding for
- * remote/learned mappings. */
+ /* remove entry if it already exists */
+ feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index);
+ if (feip)
+ dp_del_fwd_entry (lcm, src_map_index, dst_map_index);
+
+ 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 */
+ a->is_add = 1;
+
+ gid_address_copy (&a->rmt_eid, &dst_map->eid);
+ a->vni = gid_address_vni(&a->rmt_eid);
+
+ /* get vrf or bd_index associated to vni */
+ type = gid_address_type(&dst_map->eid);
+ if (GID_ADDR_IP_PREFIX == type)
+ {
+ dpid = hash_get(lcm->table_id_by_vni, a->vni);
+ if (!dpid)
+ {
+ clib_warning("vni %d not associated to a vrf!", a->vni);
+ return;
+ }
+ a->table_id = dpid[0];
+ }
+ else if (GID_ADDR_MAC == type)
+ {
+ dpid = hash_get(lcm->bd_id_by_vni, a->vni);
+ if (!dpid)
+ {
+ clib_warning("vni %d not associated to a bridge domain !", a->vni);
+ return;
+ }
+ a->bd_id = dpid[0];
+ }
+
+ /* 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))
+ {
+ /* negative entry */
+ a->is_negative = 1;
+ a->action = dst_map->action;
+ }
+
+ /* 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;
+
+ vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
+
+ /* add tunnel to fwd entry table XXX check return value from DP insertion */
+ pool_get (lcm->fwd_entry_pool, fe);
+ fe->locator_pairs = a->locator_pairs;
+ gid_address_copy (&fe->deid, &a->rmt_eid);
+ hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index,
+ fe - lcm->fwd_entry_pool);
+}
+
+/**
+ * Add/remove mapping to/from map-cache. Overwriting not allowed.
+ */
int
-vnet_lisp_add_del_mapping (vnet_lisp_add_del_mapping_args_t * a,
- u32 * map_index_result)
+vnet_lisp_map_cache_add_del (vnet_lisp_add_del_mapping_args_t * a,
+ u32 * map_index_result)
{
lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
u32 mi, * map_indexp, map_index, i;
mapping_t * m, * old_map;
u32 ** eid_indexes;
- mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->deid);
+ mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->eid);
old_map = mi != ~0 ? pool_elt_at_index (lcm->mapping_pool, mi) : 0;
if (a->is_add)
{
/* TODO check if overwriting and take appropriate actions */
if (mi != GID_LOOKUP_MISS && !gid_address_cmp (&old_map->eid,
- &a->deid))
+ &a->eid))
{
clib_warning ("eid %U found in the eid-table", format_gid_address,
- &a->deid);
+ &a->eid);
return VNET_API_ERROR_VALUE_EXIST;
}
pool_get(lcm->mapping_pool, m);
- gid_address_copy (&m->eid, &a->deid);
+ gid_address_copy (&m->eid, &a->eid);
m->locator_set_index = a->locator_set_index;
m->ttl = a->ttl;
m->action = a->action;
m->local = a->local;
map_index = m - lcm->mapping_pool;
- gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->deid, map_index,
+ gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, map_index,
1);
if (pool_is_free_index(lcm->locator_set_pool, a->locator_set_index))
if (mi == GID_LOOKUP_MISS)
{
clib_warning("eid %U not found in the eid-table", format_gid_address,
- &a->deid);
+ &a->eid);
return VNET_API_ERROR_INVALID_VALUE;
}
}
vec_del1(lcm->local_mappings_indexes, k);
}
- else
- {
- /* remove tunnel ??? */
- }
/* remove mapping from dictionary */
- gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->deid, 0, 0);
+ gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, 0, 0);
gid_address_free (&m->eid);
pool_put_index (lcm->mapping_pool, mi);
}
return 0;
}
-/* Stores mapping in map-cache and programs data plane for local mappings. */
+/**
+ * Add/update/delete mapping to/in/from map-cache.
+ */
int
vnet_lisp_add_del_local_mapping (vnet_lisp_add_del_mapping_args_t * a,
u32 * map_index_result)
{
- uword * table_id, * refc;
- u32 rv, vni;
- vnet_lisp_gpe_add_del_iface_args_t _ai, *ai = &_ai;
+ uword * dp_table = 0;
+ u32 vni;
+ u8 type;
+
lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
if (vnet_lisp_enable_disable_status () == 0)
return VNET_API_ERROR_LISP_DISABLED;
}
- vni = gid_address_vni(&a->deid);
-
- /* store/remove mapping from map-cache */
- rv = vnet_lisp_add_del_mapping (a, map_index_result);
- if (rv)
- return rv;
-
- table_id = hash_get(lcm->table_id_by_vni, vni);
+ vni = gid_address_vni(&a->eid);
+ type = gid_address_type(&a->eid);
+ if (GID_ADDR_IP_PREFIX == type)
+ dp_table = hash_get(lcm->table_id_by_vni, vni);
+ else if (GID_ADDR_MAC == type)
+ dp_table = hash_get(lcm->bd_id_by_vni, vni);
- if (!table_id)
+ if (!dp_table)
{
- clib_warning ("vni %d not associated to a vrf!", vni);
+ clib_warning("vni %d not associated to a %s!", vni,
+ GID_ADDR_IP_PREFIX == type ? "vrf" : "bd");
return VNET_API_ERROR_INVALID_VALUE;
}
- refc = hash_get(lcm->dp_if_refcount_by_vni, vni);
-
- /* enable/disable data-plane interface */
- if (a->is_add)
- {
- /* create interface or update refcount */
- if (!refc)
- {
- ai->is_add = 1;
- ai->vni = vni;
- ai->table_id = table_id[0];
- vnet_lisp_gpe_add_del_iface (ai, 0);
-
- /* counts the number of eids in a vni that use the interface */
- hash_set(lcm->dp_if_refcount_by_vni, vni, 1);
- }
- else
- {
- refc[0]++;
- }
- }
- else
- {
- /* since this is a remove for an existing eid, the iface should exist */
- ASSERT(refc != 0);
- refc[0]--;
-
- /* remove iface if needed */
- if (refc[0] == 0)
- {
- ai->is_add = 0;
- ai->vni = vni;
- ai->table_id = table_id[0];
- vnet_lisp_gpe_add_del_iface (ai, 0);
- hash_unset (lcm->dp_if_refcount_by_vni, vni);
- }
- }
-
- return rv;
+ /* store/remove mapping from map-cache */
+ return vnet_lisp_map_cache_add_del (a, map_index_result);
}
static clib_error_t *
unformat_input_t _line_input, * line_input = &_line_input;
u8 is_add = 1;
gid_address_t eid;
- ip_prefix_t * prefp = &gid_address_ippref(&eid);
gid_address_t * eids = 0;
clib_error_t * error = 0;
u8 * locator_set_name = 0;
u32 vni = 0;
memset (&eid, 0, sizeof (eid));
+ memset (a, 0, sizeof (*a));
+
/* Get a line of input. */
if (! unformat_user (input, unformat_line_input, line_input))
return 0;
is_add = 1;
else if (unformat (line_input, "del"))
is_add = 0;
+ else if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
+ ;
else if (unformat (line_input, "vni %d", &vni))
gid_address_vni (&eid) = vni;
- else if (unformat (line_input, "eid %U", unformat_ip_prefix, prefp))
- {
- vec_add1(eids, eid);
- }
else if (unformat (line_input, "locator-set %_%v%_", &locator_set_name))
{
p = hash_get_mem(lcm->locator_set_index_by_name, locator_set_name);
goto done;
}
}
- /* XXX treat batch configuration */
+ /* XXX treat batch configuration */
+
+ if (GID_ADDR_SRC_DST == gid_address_type(&eid))
+ {
+ error = clib_error_return(0, "src/dst is not supported for local EIDs!");
+ goto done;
+ }
- gid_address_type (&eid) = GID_ADDR_IP_PREFIX;
- a->deid = eid;
+ gid_address_copy(&a->eid, &eid);
a->is_add = is_add;
a->locator_set_index = locator_set_index;
a->local = 1;
rv = vnet_lisp_add_del_local_mapping (a, &map_index);
if (0 != rv)
{
- error = clib_error_return(0, "failed to %s eid-table!",
+ error = clib_error_return(0, "failed to %s local mapping!",
is_add ? "add" : "delete");
}
done:
vec_free(eids);
if (locator_set_name)
vec_free (locator_set_name);
- gid_address_free (&a->deid);
+ gid_address_free (&a->eid);
return error;
}
};
int
-vnet_lisp_eid_table_map (u32 vni, u32 vrf, u8 is_add)
+vnet_lisp_eid_table_map (u32 vni, u32 dp_id, u8 is_l2, u8 is_add)
{
lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
- uword * table_id, * vnip;
+ uword * dp_idp, * vnip, ** dp_table_by_vni, ** vni_by_dp_table;
if (vnet_lisp_enable_disable_status () == 0)
{
return -1;
}
- if (vni == 0 || vrf == 0)
+ dp_table_by_vni = is_l2 ? &lcm->bd_id_by_vni : &lcm->table_id_by_vni;
+ vni_by_dp_table = is_l2 ? &lcm->vni_by_bd_id : &lcm->vni_by_table_id;
+
+ if (!is_l2 && (vni == 0 || dp_id == 0))
{
clib_warning ("can't add/del default vni-vrf mapping!");
return -1;
}
- table_id = hash_get (lcm->table_id_by_vni, vni);
- vnip = hash_get (lcm->vni_by_table_id, vrf);
+ dp_idp = hash_get (dp_table_by_vni[0], vni);
+ vnip = hash_get (vni_by_dp_table[0], dp_id);
if (is_add)
{
- if (table_id || vnip)
+ if (dp_idp || vnip)
{
- clib_warning ("vni %d or vrf %d already used in any vrf/vni "
- "mapping!", vni, vrf);
+ clib_warning ("vni %d or vrf %d already used in vrf/vni "
+ "mapping!", vni, dp_id);
return -1;
}
- hash_set (lcm->table_id_by_vni, vni, vrf);
- hash_set (lcm->vni_by_table_id, vrf, vni);
+ hash_set (dp_table_by_vni[0], vni, dp_id);
+ hash_set (vni_by_dp_table[0], dp_id, vni);
+
+ /* create dp iface */
+ dp_add_del_iface (lcm, vni, is_l2, 1);
}
else
{
- if (!table_id || !vnip)
+ if (!dp_idp || !vnip)
{
clib_warning ("vni %d or vrf %d not used in any vrf/vni! "
- "mapping!", vni, vrf);
+ "mapping!", vni, dp_id);
return -1;
}
- hash_unset (lcm->table_id_by_vni, vni);
- hash_unset (lcm->vni_by_table_id, vrf);
+ hash_unset (dp_table_by_vni[0], vni);
+ hash_unset (vni_by_dp_table[0], dp_id);
+
+ /* remove dp iface */
+ dp_add_del_iface (lcm, vni, is_l2, 0);
}
return 0;
+
}
static clib_error_t *
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
- u8 is_add = 1;
- u32 vni = 0, vrf = 0;
+ u8 is_add = 1, is_l2 = 0;
+ u32 vni = 0, dp_id = 0;
unformat_input_t _line_input, * line_input = &_line_input;
/* Get a line of input. */
is_add = 0;
else if (unformat (line_input, "vni %d", &vni))
;
- else if (unformat (line_input, "vrf %d", &vrf))
+ else if (unformat (line_input, "vrf %d", &dp_id))
;
+ else if (unformat (line_input, "bd %d", &dp_id))
+ is_l2 = 1;
else
{
return unformat_parse_error (line_input);
}
}
- vnet_lisp_eid_table_map (vni, vrf, is_add);
+ vnet_lisp_eid_table_map (vni, dp_id, is_l2, is_add);
return 0;
}
VLIB_CLI_COMMAND (lisp_eid_table_map_command) = {
.path = "lisp eid-table map",
- .short_help = "lisp eid-table map [del] vni <vni> vrf <vrf>",
+ .short_help = "lisp eid-table map [del] vni <vni> vrf <vrf> | bd <bdi>",
.function = lisp_eid_table_map_command_fn,
};
-static int
-lisp_add_del_negative_static_mapping (gid_address_t * deid,
- vnet_lisp_add_del_locator_set_args_t * ls, u8 action, u8 is_add)
-{
- uword * p;
- mapping_t * map;
- u32 mi = ~0;
- lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
- uword * refc;
- vnet_lisp_add_del_mapping_args_t _dm_args, * dm_args = &_dm_args;
- int rv = 0;
- u32 ls_index = 0, dst_map_index;
- vnet_lisp_gpe_add_del_iface_args_t _ai, *ai = &_ai;
-
- memset (dm_args, 0, sizeof (dm_args[0]));
- u32 vni = gid_address_vni (deid);
- refc = hash_get (lcm->dp_if_refcount_by_vni, vni);
-
- p = hash_get (lcm->table_id_by_vni, vni);
- if (!p)
- {
- clib_warning ("vni %d not associated to a vrf!", vni);
- return VNET_API_ERROR_INVALID_VALUE;
- }
-
- if (is_add)
- {
- vnet_lisp_add_del_locator_set (ls, &ls_index);
- /* add mapping */
- gid_address_copy (&dm_args->deid, deid);
- dm_args->is_add = 1;
- dm_args->action = action;
- dm_args->locator_set_index = ls_index;
- /* create interface or update refcount */
- if (!refc)
- {
- vnet_lisp_gpe_add_del_iface_args_t _ai, *ai = &_ai;
- ai->is_add = 1;
- ai->vni = vni;
- ai->table_id = p[0];
- vnet_lisp_gpe_add_del_iface (ai, 0);
+/* return 0 if the two locator sets are identical 1 otherwise */
+static u8
+compare_locators (lisp_cp_main_t *lcm, u32 * old_ls_indexes,
+ locator_t * new_locators)
+{
+ u32 i, old_li;
+ locator_t * old_loc, * new_loc;
- /* counts the number of eids in a vni that use the interface */
- hash_set (lcm->dp_if_refcount_by_vni, vni, 1);
- }
- else
- refc[0]++;
+ if (vec_len (old_ls_indexes) != vec_len(new_locators))
+ return 1;
- rv = vnet_lisp_add_del_local_mapping (dm_args, &dst_map_index);
- if (!rv)
- add_fwd_entry (lcm, lcm->pitr_map_index, dst_map_index);
- }
- else
+ for (i = 0; i < vec_len(new_locators); i++)
{
- mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, deid);
- if ((u32)~0 == mi)
- {
- clib_warning ("eid %U marked for removal, but not found in "
- "map-cache!", unformat_gid_address, deid);
- return VNET_API_ERROR_INVALID_VALUE;
- }
-
- /* delete forwarding entry */
- del_fwd_entry (lcm, 0, mi);
-
- dm_args->is_add = 0;
- gid_address_copy (&dm_args->deid, deid);
- map = pool_elt_at_index (lcm->mapping_pool, mi);
- dm_args->locator_set_index = map->locator_set_index;
-
- /* delete mapping associated to fwd entry */
- vnet_lisp_add_del_mapping (dm_args, 0);
+ old_li = vec_elt(old_ls_indexes, i);
+ old_loc = pool_elt_at_index(lcm->locator_pool, old_li);
- refc = hash_get (lcm->dp_if_refcount_by_vni, vni);
- ASSERT(refc != 0);
- refc[0]--;
+ new_loc = vec_elt_at_index(new_locators, i);
- /* remove iface if needed */
- if (refc[0] == 0)
- {
- ai->is_add = 0;
- ai->vni = vni;
- ai->table_id = p[0];
- vnet_lisp_gpe_add_del_iface (ai, 0);
- hash_unset (lcm->dp_if_refcount_by_vni, vni);
- }
+ if (locator_cmp (old_loc, new_loc))
+ return 1;
}
- return rv;
+ return 0;
}
/**
- * Adds/removes/updates static remote mapping.
- *
- * This function also modifies forwarding entries if needed.
+ * Adds/removes/updates mapping. Does not program forwarding.
*
- * @param deid destination EID
- * @param seid source EID
+ * @param eid end-host identifier
* @param rlocs vector of remote locators
* @param action action for negative map-reply
* @param is_add add mapping if non-zero, delete otherwise
- * @param del_all if set, delete all remote mappings
+ * @param res_map_index the map-index that was created/updated/removed. It is
+ * set to ~0 if no action is taken.
* @return return code
*/
int
-vnet_lisp_add_del_remote_mapping (gid_address_t * deid, gid_address_t * seid,
- ip_address_t * rlocs, u8 action, u8 is_add,
- u8 del_all)
+vnet_lisp_add_del_mapping (gid_address_t * eid, locator_t * rlocs, u8 action,
+ u8 authoritative, u32 ttl, u8 is_add,
+ u32 * res_map_index)
{
- vnet_lisp_add_del_mapping_args_t _dm_args, * dm_args = &_dm_args;
- vnet_lisp_add_del_mapping_args_t _sm_args, * sm_args = &_sm_args;
- vnet_lisp_add_del_locator_set_args_t _ls, * ls = &_ls;
+ vnet_lisp_add_del_mapping_args_t _m_args, * m_args = &_m_args;
+ vnet_lisp_add_del_locator_set_args_t _ls_args, * ls_args = &_ls_args;
lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
- u32 mi, ls_index = 0, dst_map_index, src_map_index;
- locator_t loc;
- ip_address_t * dl;
- int rc = -1;
+ u32 mi, ls_index = 0, dst_map_index;
+ mapping_t * old_map;
if (vnet_lisp_enable_disable_status() == 0)
{
return VNET_API_ERROR_LISP_DISABLED;
}
- if (del_all)
- return vnet_lisp_clear_all_remote_mappings ();
+ if (res_map_index)
+ res_map_index[0] = ~0;
- memset (sm_args, 0, sizeof (sm_args[0]));
- memset (dm_args, 0, sizeof (dm_args[0]));
- memset (ls, 0, sizeof (ls[0]));
+ memset (m_args, 0, sizeof (m_args[0]));
+ memset (ls_args, 0, sizeof (ls_args[0]));
- /* prepare remote locator set */
- vec_foreach (dl, rlocs)
- {
- memset (&loc, 0, sizeof (loc));
- gid_address_ip (&loc.address) = dl[0];
- vec_add1 (ls->locators, loc);
- }
- src_map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid);
+ ls_args->locators = rlocs;
- mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, deid);
- /* new mapping */
- if ((u32)~0 == mi)
+ mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, eid);
+ old_map = ((u32) ~0 != mi) ? pool_elt_at_index(lcm->mapping_pool, mi) : 0;
+
+ if (is_add)
{
- ls->is_add = 1;
- ls->index = ~0;
+ /* overwrite: if mapping already exists, decide if locators should be
+ * updated and be done */
+ if (old_map && gid_address_cmp (&old_map->eid, eid) == 0)
+ {
+ locator_set_t * old_ls;
- /* process a negative mapping */
- if (0 == vec_len (rlocs))
- return lisp_add_del_negative_static_mapping (deid, ls,
- action, is_add);
+ /* update mapping attributes */
+ old_map->action = action;
+ old_map->authoritative = authoritative;
+ old_map->ttl = ttl;
- if ((u32)~0 == src_map_index)
- {
- clib_warning ("seid %U not found!", format_gid_address, seid);
- goto done;
+ old_ls = pool_elt_at_index(lcm->locator_set_pool,
+ old_map->locator_set_index);
+ if (compare_locators (lcm, old_ls->locator_indices,
+ ls_args->locators))
+ {
+ /* set locator-set index to overwrite */
+ ls_args->is_add = 1;
+ ls_args->index = old_map->locator_set_index;
+ vnet_lisp_add_del_locator_set (ls_args, 0);
+ if (res_map_index)
+ res_map_index[0] = mi;
+ }
}
-
- if (!is_add)
+ /* new mapping */
+ else
{
- clib_warning ("deid %U marked for removal but not "
- "found!", format_gid_address, deid);
- goto done;
- }
+ ls_args->is_add = 1;
+ ls_args->index = ~0;
- vnet_lisp_add_del_locator_set (ls, &ls_index);
+ vnet_lisp_add_del_locator_set (ls_args, &ls_index);
- /* add mapping */
- gid_address_copy (&dm_args->deid, deid);
- dm_args->is_add = 1;
- dm_args->action = action;
- dm_args->locator_set_index = ls_index;
- vnet_lisp_add_del_mapping (dm_args, &dst_map_index);
+ /* add mapping */
+ gid_address_copy (&m_args->eid, eid);
+ m_args->is_add = 1;
+ m_args->action = action;
+ m_args->locator_set_index = ls_index;
+ vnet_lisp_map_cache_add_del (m_args, &dst_map_index);
- /* add fwd tunnel */
- add_fwd_entry (lcm, src_map_index, dst_map_index);
+ if (res_map_index)
+ res_map_index[0] = dst_map_index;
+ }
}
else
{
- /* delete mapping */
- if (!is_add)
+ if (old_map == 0 || gid_address_cmp (&old_map->eid, eid) != 0)
{
- /* delete forwarding entry */
- del_fwd_entry (lcm, 0, mi);
- dm_args->is_add = 0;
- gid_address_copy (&dm_args->deid, deid);
- mapping_t * map = pool_elt_at_index (lcm->mapping_pool, mi);
- dm_args->locator_set_index = map->locator_set_index;
-
- /* delete mapping associated to fwd entry */
- vnet_lisp_add_del_mapping (dm_args, 0);
-
- ls->is_add = 0;
- ls->index = map->locator_set_index;
- /* delete locator set */
- vnet_lisp_add_del_locator_set (ls, 0);
+ clib_warning("cannot delete mapping for eid %U", format_gid_address,
+ eid);
+ return -1;
}
- /* update existing locator set */
- else
- {
- if ((u32)~0 == src_map_index)
- {
- clib_warning ("seid %U not found!", format_gid_address, seid);
- goto done;
- }
- mapping_t * old_map;
- locator_set_t * old_ls;
- old_map = pool_elt_at_index (lcm->mapping_pool, mi);
+ m_args->is_add = 0;
+ gid_address_copy (&m_args->eid, eid);
+ m_args->locator_set_index = old_map->locator_set_index;
- /* update mapping attributes */
- old_map->action = action;
+ /* delete mapping associated from map-cache */
+ vnet_lisp_map_cache_add_del (m_args, 0);
- old_ls = pool_elt_at_index(lcm->locator_set_pool,
- old_map->locator_set_index);
- if (compare_locators (lcm, old_ls->locator_indices,
- ls->locators))
- {
- /* set locator-set index to overwrite */
- ls->is_add = 1;
- ls->index = old_map->locator_set_index;
- vnet_lisp_add_del_locator_set (ls, 0);
- add_fwd_entry (lcm, src_map_index, mi);
- }
- }
+ ls_args->is_add = 0;
+ ls_args->index = old_map->locator_set_index;
+ /* delete locator set */
+ vnet_lisp_add_del_locator_set (ls_args, 0);
+
+ /* return old mapping index */
+ if (res_map_index)
+ res_map_index[0] = mi;
}
+
/* success */
- rc = 0;
-done:
- vec_free (ls->locators);
- return rc;
+ return 0;
}
int
-vnet_lisp_clear_all_remote_mappings (void)
+vnet_lisp_clear_all_remote_adjacencies (void)
{
int rv = 0;
u32 mi, * map_indices = 0, * map_indexp;
mapping_t * map = pool_elt_at_index (lcm->mapping_pool, map_indexp[0]);
if (!map->local)
{
- del_fwd_entry (lcm, 0, map_indexp[0]);
+ dp_del_fwd_entry (lcm, 0, map_indexp[0]);
dm_args->is_add = 0;
- gid_address_copy (&dm_args->deid, &map->eid);
+ gid_address_copy (&dm_args->eid, &map->eid);
dm_args->locator_set_index = map->locator_set_index;
/* delete mapping associated to fwd entry */
- vnet_lisp_add_del_mapping (dm_args, 0);
+ vnet_lisp_map_cache_add_del (dm_args, 0);
ls->is_add = 0;
ls->local = 0;
return rv;
}
+/**
+ * Adds adjacency or removes forwarding entry associated to remote mapping.
+ * Note that adjacencies are not stored, they only result in forwarding entries
+ * being created.
+ */
+int
+lisp_add_del_adjacency (lisp_cp_main_t * lcm, gid_address_t * local_eid,
+ gid_address_t * remote_eid, u8 is_add)
+{
+ u32 local_mi, remote_mi = ~0;
+
+ if (vnet_lisp_enable_disable_status () == 0)
+ {
+ clib_warning ("LISP is disabled!");
+ return VNET_API_ERROR_LISP_DISABLED;
+ }
+
+ remote_mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, remote_eid);
+ if (GID_LOOKUP_MISS == remote_mi)
+ {
+ clib_warning("Remote eid %U not found. Cannot add adjacency!",
+ format_gid_address, remote_eid);
+
+ return -1;
+ }
+
+ if (is_add)
+ {
+ /* TODO 1) check if src/dst 2) once we have src/dst working, use it in
+ * delete*/
+
+ /* check if source eid has an associated mapping. If pitr mode is on,
+ * just use the pitr's mapping */
+ local_mi = lcm->lisp_pitr ? lcm->pitr_map_index :
+ gid_dictionary_lookup (&lcm->mapping_index_by_gid, local_eid);
+
+
+ if (GID_LOOKUP_MISS == local_mi)
+ {
+ clib_warning("Local eid %U not found. Cannot add adjacency!",
+ format_gid_address, local_eid);
+
+ return -1;
+ }
+
+ /* update forwarding */
+ dp_add_fwd_entry (lcm, local_mi, remote_mi);
+ }
+ else
+ dp_del_fwd_entry (lcm, 0, remote_mi);
+
+ return 0;
+}
+
+int
+vnet_lisp_add_del_adjacency (vnet_lisp_add_del_adjacency_args_t * a)
+{
+ lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
+ return lisp_add_del_adjacency(lcm, &a->seid, &a->deid, a->is_add);
+}
+
/**
* Handler for add/del remote mapping CLI.
*
clib_error_t * error = 0;
unformat_input_t _line_input, * line_input = &_line_input;
u8 is_add = 1, del_all = 0;
- ip_address_t rloc, * rlocs = 0;
+ locator_t rloc, * rlocs = 0, * curr_rloc = 0;
+ gid_address_t eid;
+ u8 eid_set = 0;
+ u32 vni, action = ~0, p, w;
+ int rv;
+
+ /* Get a line of input. */
+ if (! unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ memset(&eid, 0, sizeof(eid));
+ memset(&rloc, 0, sizeof(rloc));
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "del-all"))
+ del_all = 1;
+ else if (unformat (line_input, "del"))
+ is_add = 0;
+ else if (unformat (line_input, "add"))
+ ;
+ else if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
+ eid_set = 1;
+ else if (unformat (line_input, "vni %u", &vni))
+ {
+ gid_address_vni (&eid) = vni;
+ }
+ else if (unformat (line_input, "p %d w %d", &p, &w))
+ {
+ if (!curr_rloc)
+ {
+ clib_warning ("No RLOC configured for setting priority/weight!");
+ goto done;
+ }
+ curr_rloc->priority = p;
+ curr_rloc->weight = w;
+ }
+ else if (unformat (line_input, "rloc %U", unformat_ip_address,
+ &gid_address_ip(&rloc.address)))
+ {
+ vec_add1 (rlocs, rloc);
+ curr_rloc = &rlocs[vec_len (rlocs) - 1];
+ }
+ else if (unformat (line_input, "action %U",
+ unformat_negative_mapping_action, &action))
+ ;
+ else
+ {
+ clib_warning ("parse error");
+ goto done;
+ }
+ }
+
+ if (!eid_set)
+ {
+ clib_warning ("missing eid!");
+ goto done;
+ }
+
+ if (!del_all)
+ {
+ if (is_add && (~0 == action)
+ && 0 == vec_len (rlocs))
+ {
+ clib_warning ("no action set for negative map-reply!");
+ goto done;
+ }
+ }
+ else
+ {
+ vnet_lisp_clear_all_remote_adjacencies ();
+ goto done;
+ }
+
+ /* TODO build src/dst with seid*/
+
+ /* if it's a delete, clean forwarding */
+ if (!is_add)
+ {
+ lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
+ rv = lisp_add_del_adjacency (lcm, 0, &eid, /* is_add */ 0);
+ if (rv)
+ {
+ goto done;
+ }
+ }
+
+ /* add as static remote mapping, i.e., not authoritative and infinite
+ * ttl */
+ rv = vnet_lisp_add_del_mapping (&eid, rlocs, action, 0, ~0, is_add, 0);
+
+ if (rv)
+ clib_warning("failed to %s remote mapping!", is_add ? "add" : "delete");
+
+done:
+ vec_free (rlocs);
+ unformat_free (line_input);
+ return error;
+}
+
+VLIB_CLI_COMMAND (lisp_add_del_remote_mapping_command) = {
+ .path = "lisp remote-mapping",
+ .short_help = "lisp remote-mapping add|del [del-all] vni <vni> "
+ "eid <est-eid> [action <no-action|natively-forward|"
+ "send-map-request|drop>] rloc <dst-locator> p <prio> w <weight> "
+ "[rloc <dst-locator> ... ]",
+ .function = lisp_add_del_remote_mapping_command_fn,
+};
+
+/**
+ * Handler for add/del adjacency CLI.
+ */
+static clib_error_t *
+lisp_add_del_adjacency_command_fn (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ clib_error_t * error = 0;
+ unformat_input_t _line_input, * line_input = &_line_input;
+ vnet_lisp_add_del_adjacency_args_t _a, * a = &_a;
+ u8 is_add = 1;
+ locator_t rloc, * rlocs = 0;
ip_prefix_t * deid_ippref, * seid_ippref;
gid_address_t seid, deid;
+ u8 * dmac = gid_address_mac (&deid);
+ u8 * smac = gid_address_mac (&seid);
u8 deid_set = 0, seid_set = 0;
u8 * s = 0;
u32 vni, action = ~0;
+ int rv;
/* Get a line of input. */
if (! unformat_user (input, unformat_line_input, line_input))
return 0;
- memset (&deid, 0, sizeof (deid));
- memset (&seid, 0, sizeof (seid));
+ memset(&deid, 0, sizeof(deid));
+ memset(&seid, 0, sizeof(seid));
+ memset(&rloc, 0, sizeof(rloc));
seid_ippref = &gid_address_ippref(&seid);
deid_ippref = &gid_address_ippref(&deid);
- gid_address_type (&deid) = GID_ADDR_IP_PREFIX;
- gid_address_type (&seid) = GID_ADDR_IP_PREFIX;
-
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (line_input, "del-all"))
- del_all = 1;
- else if (unformat (line_input, "del"))
+ if (unformat (line_input, "del"))
is_add = 0;
else if (unformat (line_input, "add"))
;
else if (unformat (line_input, "deid %U",
unformat_ip_prefix, deid_ippref))
{
+ gid_address_type (&deid) = GID_ADDR_IP_PREFIX;
+ deid_set = 1;
+ }
+ else if (unformat (line_input, "deid %U",
+ unformat_mac_address, dmac))
+ {
+ gid_address_type (&deid) = GID_ADDR_MAC;
deid_set = 1;
}
else if (unformat (line_input, "vni %u", &vni))
else if (unformat (line_input, "seid %U",
unformat_ip_prefix, seid_ippref))
{
+ gid_address_type (&seid) = GID_ADDR_IP_PREFIX;
seid_set = 1;
}
- else if (unformat (line_input, "rloc %U", unformat_ip_address, &rloc))
- vec_add1 (rlocs, rloc);
- else if (unformat (line_input, "action %s", &s))
- {
- if (!strcmp ((char *)s, "no-action"))
- action = ACTION_NONE;
- if (!strcmp ((char *)s, "natively-forward"))
- action = ACTION_NATIVELY_FORWARDED;
- if (!strcmp ((char *)s, "send-map-request"))
- action = ACTION_SEND_MAP_REQUEST;
- else if (!strcmp ((char *)s, "drop"))
- action = ACTION_DROP;
- else
- {
- clib_warning ("invalid action: '%s'", s);
- goto done;
- }
+ else if (unformat (line_input, "seid %U",
+ unformat_mac_address, smac))
+ {
+ gid_address_type (&seid) = GID_ADDR_MAC;
+ seid_set = 1;
}
else
{
}
}
- if (!del_all)
- {
- if (!deid_set)
- {
- clib_warning ("missing deid!");
- goto done;
- }
+ if (!deid_set)
+ {
+ clib_warning ("missing deid!");
+ goto done;
+ }
- /* if seid not set, make sure the ip version is the same as that of the
- * deid. This ensures the seid to be configured will be either 0/0 or
- * ::/0 */
+ if (GID_ADDR_IP_PREFIX == gid_address_type (&deid))
+ {
+ /* if seid not set, make sure the ip version is the same as that
+ * of the deid. This ensures the seid to be configured will be
+ * either 0/0 or ::/0 */
if (!seid_set)
ip_prefix_version(seid_ippref) = ip_prefix_version(deid_ippref);
if (is_add &&
- (ip_prefix_version (deid_ippref) != ip_prefix_version(seid_ippref)))
+ (ip_prefix_version (deid_ippref)
+ != ip_prefix_version(seid_ippref)))
{
clib_warning ("source and destination EIDs are not"
" in the same IP family!");
goto done;
}
+ }
- if (is_add && (~0 == action)
- && 0 == vec_len (rlocs))
- {
- clib_warning ("no action set for negative map-reply!");
- goto done;
- }
+ if (is_add && (~0 == action)
+ && 0 == vec_len (rlocs))
+ {
+ clib_warning ("no action set for negative map-reply!");
+ goto done;
}
- int rv = vnet_lisp_add_del_remote_mapping (&deid, &seid, rlocs,
- action, is_add, del_all);
+ memset(a, 0, sizeof(a[0]));
+ gid_address_copy (&a->seid, &deid);
+ gid_address_copy (&a->deid, &seid);
+
+ a->is_add = is_add;
+ rv = vnet_lisp_add_del_adjacency (a);
+
if (rv)
- clib_warning ("failed to %s remote mapping!",
- is_add ? "add" : "delete");
+ clib_warning("failed to %s adjacency!", is_add ? "add" : "delete");
done:
unformat_free (line_input);
return error;
}
-VLIB_CLI_COMMAND (lisp_add_del_remote_mapping_command) = {
- .path = "lisp remote-mapping",
- .short_help = "lisp remote-mapping add|del [del-all] vni <vni>"
+VLIB_CLI_COMMAND (lisp_add_del_adjacency_command) = {
+ .path = "lisp adjacency",
+ .short_help = "lisp adjacency add|del vni <vni>"
"deid <dest-eid> seid <src-eid> [action <no-action|natively-forward|"
"send-map-request|drop>] rloc <dst-locator> [rloc <dst-locator> ... ]",
- .function = lisp_add_del_remote_mapping_command_fn,
+ .function = lisp_add_del_adjacency_command_fn,
};
+
static clib_error_t *
lisp_show_map_resolvers_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
- ip_address_t * addr;
+ map_resolver_t * mr;
lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
- vec_foreach (addr, lcm->map_resolvers)
+ vec_foreach (mr, lcm->map_resolvers)
{
- vlib_cli_output (vm, "%U", format_ip_address, addr);
+ vlib_cli_output (vm, "%U", format_ip_address, &mr->address);
}
return 0;
}
.function = lisp_pitr_set_locator_set_command_fn,
};
+static clib_error_t *
+lisp_show_pitr_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;
+ u8 * tmp_str = 0;
+
+ vlib_cli_output (vm, "%=20s%=16s",
+ "pitr", lcm->lisp_pitr ? "locator-set" : "");
+
+ if (!lcm->lisp_pitr) {
+ vlib_cli_output (vm, "%=20s", "disable");
+ return 0;
+ }
+
+ if (~0 == lcm->pitr_map_index) {
+ tmp_str = format(0, "N/A");
+ } else {
+ m = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
+ if (~0 != m->locator_set_index) {
+ ls = pool_elt_at_index (lcm->locator_set_pool, m->locator_set_index);
+ tmp_str = format(0, "%s", ls->name);
+ } 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;
+}
+
+VLIB_CLI_COMMAND (lisp_show_pitr_command) = {
+ .path = "show lisp pitr",
+ .short_help = "Show pitr",
+ .function = lisp_show_pitr_command_fn,
+};
static u8 *
format_eid_entry (u8 * s, va_list * args)
{
vnet_main_t * vnm = va_arg (*args, vnet_main_t *);
lisp_cp_main_t * lcm = va_arg (*args, lisp_cp_main_t *);
- gid_address_t * gid = va_arg (*args, gid_address_t *);
+ mapping_t * mapit = va_arg (*args, mapping_t *);
locator_set_t * ls = va_arg (*args, locator_set_t *);
+ gid_address_t * gid = &mapit->eid;
+ u32 ttl = mapit->ttl;
+ u8 aut = mapit->authoritative;
u32 * loc_index;
u8 first_line = 1;
u8 * loc;
if (vec_len (ls->locator_indices) == 0)
{
- s = format (s, "%-35U%-20s", format_gid_address, gid, type);
+ s = format (s, "%-35U%-30s%-20u%-u", format_gid_address, gid,
+ type, ttl, aut);
}
else
{
if (first_line)
{
- s = format (s, "%-35U%-20s%-v\n", format_gid_address,
- gid, type, loc);
+ s = format (s, "%-35U%-20s%-30v%-20u%-u\n", format_gid_address,
+ gid, type, loc, ttl, aut);
first_line = 0;
}
else
{
lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
mapping_t * mapit;
+ unformat_input_t _line_input, * line_input = &_line_input;
+ u32 mi;
+ gid_address_t eid;
+ u8 print_all = 1;
+ u8 filter = 0;
- vlib_cli_output (vm, "%-35s%-20s%-s", "EID", "type", "locators");
- pool_foreach (mapit, lcm->mapping_pool,
- ({
- locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
- mapit->locator_set_index);
- vlib_cli_output (vm, "%U", format_eid_entry, lcm->vnet_main,
- lcm, &mapit->eid, ls);
- }));
+ memset (&eid, 0, sizeof(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, "eid %U", unformat_gid_address, &eid))
+ print_all = 0;
+ else if (unformat (line_input, "local"))
+ filter = 1;
+ else if (unformat(line_input, "remote"))
+ filter = 2;
+ else
+ return clib_error_return (0, "parse error: '%U'",
+ format_unformat_error, line_input);
+ }
+
+ vlib_cli_output (vm, "%-35s%-20s%-30s%-20s%-s",
+ "EID", "type", "locators", "ttl", "autoritative");
+
+ if (print_all)
+ {
+ pool_foreach (mapit, lcm->mapping_pool,
+ ({
+ locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
+ mapit->locator_set_index);
+ if (filter && !((1 == filter && ls->local) ||
+ (2 == filter && !ls->local)))
+ {
+ continue;
+ }
+ vlib_cli_output (vm, "%U", format_eid_entry, lcm->vnet_main,
+ lcm, mapit, ls);
+ }));
+ }
+ else
+ {
+ mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &eid);
+ if ((u32)~0 == mi)
+ return 0;
+
+ mapit = pool_elt_at_index (lcm->mapping_pool, mi);
+ locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
+ mapit->locator_set_index);
+
+ if (filter && !((1 == filter && ls->local) ||
+ (2 == filter && !ls->local)))
+ {
+ return 0;
+ }
+
+ vlib_cli_output (vm, "%U,", format_eid_entry, lcm->vnet_main,
+ lcm, mapit, ls);
+ }
return 0;
}
}
}
-static inline
-uword *get_locator_set_index(vnet_lisp_add_del_locator_set_args_t * a,
- uword * p)
+static inline uword *
+get_locator_set_index (vnet_lisp_add_del_locator_set_args_t * a, uword * p)
{
lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
return p;
}
-static inline
-int is_locator_in_locator_set(lisp_cp_main_t * lcm, locator_set_t * ls,
- locator_t * loc)
+static inline int
+is_locator_in_locator_set (lisp_cp_main_t * lcm, locator_set_t * ls,
+ locator_t * loc)
{
locator_t * itloc;
u32 * locit;
vec_foreach(locit, ls->locator_indices)
{
itloc = pool_elt_at_index(lcm->locator_pool, locit[0]);
- if (itloc->sw_if_index == loc->sw_if_index ||
- !gid_address_cmp(&itloc->address, &loc->address))
+ if ((ls->local && itloc->sw_if_index == loc->sw_if_index) ||
+ (!ls->local && !gid_address_cmp(&itloc->address, &loc->address)))
{
clib_warning("Duplicate locator");
return VNET_API_ERROR_VALUE_EXIST;
return 0;
}
-static inline
-void remove_locator_from_locator_set(locator_set_t * ls, u32 * locit,
- u32 ls_index, u32 loc_id)
+static inline void
+remove_locator_from_locator_set (locator_set_t * ls, u32 * locit, u32 ls_index,
+ u32 loc_id)
{
lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
u32 ** ls_indexes = NULL;
}
clib_error_t *
-vnet_lisp_enable_disable (u8 is_enabled)
+vnet_lisp_enable_disable (u8 is_enable)
{
- vnet_lisp_gpe_add_del_iface_args_t _ai, * ai= &_ai;
- uword * table_id, * refc;
- u32 i;
+ u32 vni, dp_table;
clib_error_t * error = 0;
lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
vnet_lisp_gpe_enable_disable_args_t _a, * a = &_a;
- a->is_en = is_enabled;
+ a->is_en = is_enable;
error = vnet_lisp_gpe_enable_disable (a);
if (error)
{
a->is_en ? "enable" : "disable");
}
- if (is_enabled)
+ if (is_enable)
{
- /* enable all ifaces */
- for (i = 0; i < vec_len (lcm->local_mappings_indexes); i++)
- {
- mapping_t * m = vec_elt_at_index (lcm->mapping_pool, i);
- ai->is_add = 1;
- ai->vni = gid_address_vni (&m->eid);
-
- refc = hash_get (lcm->dp_if_refcount_by_vni, ai->vni);
- if (!refc)
- {
- table_id = hash_get (lcm->table_id_by_vni, ai->vni);
- if (table_id)
- {
- ai->table_id = table_id[0];
- /* enables interface and adds defaults */
- vnet_lisp_gpe_add_del_iface (ai, 0);
- }
- else
- return clib_error_return (0, "no table_id found for vni %u!",
- ai->vni);
+ /* enable all l2 and l3 ifaces */
+ hash_foreach(vni, dp_table, lcm->table_id_by_vni, ({
+ dp_add_del_iface(lcm, vni, 0, 1);
+ }));
- hash_set (lcm->dp_if_refcount_by_vni, ai->vni, 1);
- }
- else
- {
- refc[0]++;
- }
- }
+ hash_foreach(vni, dp_table, lcm->bd_id_by_vni, ({
+ dp_add_del_iface(lcm, vni, /* is_l2 */ 1, 1);
+ }));
}
else
{
- /* clear refcount table */
- hash_free (lcm->dp_if_refcount_by_vni);
- hash_free (lcm->fwd_entry_by_mapping_index);
- pool_free (lcm->fwd_entry_pool);
+ /* clear interface table */
+ hash_free(lcm->dp_intf_by_vni);
+ hash_free(lcm->fwd_entry_by_mapping_index);
+ pool_free(lcm->fwd_entry_pool);
}
/* update global flag */
- lcm->is_enabled = is_enabled;
+ lcm->is_enabled = is_enable;
return 0;
}
static clib_error_t *
lisp_enable_disable_command_fn (vlib_main_t * vm, unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, * line_input = &_line_input;
u8 is_enabled = 0;
({
u8 * msg = 0;
int next_line = 0;
- msg = format (msg, "%=16v", lsit->name);
+ if (lsit->local)
+ {
+ msg = format (msg, "%=16v", lsit->name);
+ }
+ else
+ {
+ msg = format (msg, "%=16s", "remote");
+ }
vec_foreach (locit, lsit->locator_indices)
{
if (next_line)
loc->weight);
else
msg = format (msg, "%16U%16d%16d\n", format_ip_address,
- gid_address_ip(&loc->address), loc->priority,
+ &gid_address_ip(&loc->address), loc->priority,
loc->weight);
next_line = 1;
}
.function = lisp_cp_show_locator_sets_command_fn,
};
+static map_resolver_t *
+get_map_resolver (ip_address_t * a)
+{
+ lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
+ map_resolver_t * mr;
+
+ vec_foreach (mr, lcm->map_resolvers)
+ {
+ if (!ip_address_cmp (&mr->address, a))
+ {
+ return mr;
+ }
+ }
+ return 0;
+}
+
int
vnet_lisp_add_del_map_resolver (vnet_lisp_add_del_map_resolver_args_t * a)
{
lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
- ip_address_t * addr;
u32 i;
+ map_resolver_t _mr, * mr = &_mr;
if (vnet_lisp_enable_disable_status () == 0)
{
if (a->is_add)
{
- vec_foreach(addr, lcm->map_resolvers)
+
+ if (get_map_resolver (&a->address))
{
- if (!ip_address_cmp (addr, &a->address))
- {
- clib_warning("map-resolver %U already exists!", format_ip_address,
- &a->address);
- return -1;
- }
+ clib_warning("map-resolver %U already exists!", format_ip_address,
+ &a->address);
+ return -1;
}
- vec_add1(lcm->map_resolvers, a->address);
+
+ memset (mr, 0, sizeof (*mr));
+ ip_address_copy(&mr->address, &a->address);
+ vec_add1(lcm->map_resolvers, *mr);
+
+ if (vec_len (lcm->map_resolvers) == 1)
+ lcm->do_map_resolver_election = 1;
}
else
{
for (i = 0; i < vec_len(lcm->map_resolvers); i++)
{
- addr = vec_elt_at_index(lcm->map_resolvers, i);
- if (!ip_address_cmp (addr, &a->address))
+ mr = vec_elt_at_index(lcm->map_resolvers, i);
+ if (!ip_address_cmp (&mr->address, &a->address))
{
- vec_delete(lcm->map_resolvers, 1, i);
+ if (!ip_address_cmp (&mr->address, &lcm->active_map_resolver))
+ lcm->do_map_resolver_election = 1;
+
+ vec_del1 (lcm->map_resolvers, i);
break;
}
}
static clib_error_t *
lisp_add_del_map_resolver_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, * line_input = &_line_input;
- u8 is_add = 1;
+ u8 is_add = 1, addr_set = 0;
ip_address_t ip_addr;
clib_error_t * error = 0;
int rv = 0;
else if (unformat (line_input, "del"))
is_add = 0;
else if (unformat (line_input, "%U", unformat_ip_address, &ip_addr))
- ;
+ addr_set = 1;
else
{
error = unformat_parse_error(line_input);
goto done;
}
}
+
+ if (!addr_set)
+ {
+ error = clib_error_return(0, "Map-resolver address must be set!");
+ goto done;
+ }
+
a->is_add = is_add;
a->address = ip_addr;
rv = vnet_lisp_add_del_map_resolver (a);
lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
uword * p = 0;
- //TODO: Wait for merge https://gerrit.fd.io/r/#/c/1427/
-// if (vnet_lisp_enable_disable_status () == 0)
-// {
-// clib_warning ("LISP is disabled!");
-// return VNET_API_ERROR_LISP_DISABLED;
-// }
+ if (vnet_lisp_enable_disable_status () == 0)
+ {
+ clib_warning("LISP is disabled!");
+ return VNET_API_ERROR_LISP_DISABLED;
+ }
if (a->is_add)
{
}
static clib_error_t *
-lisp_add_del_mreq_itr_rlocs_command_fn(vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+lisp_add_del_mreq_itr_rlocs_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_add = 1;
} lisp_cp_lookup_next_t;
typedef struct
-{
- gid_address_t dst_eid;
- ip_address_t map_resolver_ip;
-} lisp_cp_lookup_trace_t;
-
-u8 *
-format_lisp_cp_lookup_trace (u8 * s, va_list * args)
-{
- CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
- CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- lisp_cp_lookup_trace_t * t = va_arg (*args, lisp_cp_lookup_trace_t *);
-
- s = format (s, "LISP-CP-LOOKUP: map-resolver: %U destination eid %U",
- format_ip_address, &t->map_resolver_ip, format_gid_address,
- &t->dst_eid);
- return s;
-}
-
-ip_interface_address_t *
-ip_interface_get_first_interface_address (ip_lookup_main_t *lm, u32 sw_if_index,
- u8 loop)
-{
- vnet_main_t *vnm = vnet_get_main ();
- vnet_sw_interface_t * swif = vnet_get_sw_interface (vnm, sw_if_index);
- if (loop && swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
- sw_if_index = swif->unnumbered_sw_if_index;
- u32 ia =
- (vec_len((lm)->if_address_pool_index_by_sw_if_index) > (sw_if_index)) ?
- vec_elt((lm)->if_address_pool_index_by_sw_if_index, (sw_if_index)) :
- (u32) ~0;
- return pool_elt_at_index((lm)->if_address_pool, ia);
-}
-
-void *
-ip_interface_get_first_address (ip_lookup_main_t * lm, u32 sw_if_index,
- u8 version)
-{
- ip_interface_address_t * ia;
-
- ia = ip_interface_get_first_interface_address (lm, sw_if_index, 1);
- if (!ia)
- return 0;
- return ip_interface_address_get_address (lm, ia);
-}
-
-int
-ip_interface_get_first_ip_address (lisp_cp_main_t * lcm, u32 sw_if_index,
- u8 version, ip_address_t * result)
-{
- ip_lookup_main_t * lm;
- void * addr;
-
- lm = (version == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
- addr = ip_interface_get_first_address (lm, sw_if_index, version);
- if (!addr)
- return 0;
-
- ip_address_set (result, addr, version);
- return 1;
-}
-
-static u32
-ip_fib_lookup_with_table (lisp_cp_main_t * lcm, u32 fib_index,
- ip_address_t * dst)
-{
- if (ip_addr_version (dst) == IP4)
- return ip4_fib_lookup_with_table (lcm->im4, fib_index, &ip_addr_v4(dst),
- 0);
- else
- return ip6_fib_lookup_with_table (lcm->im6, fib_index, &ip_addr_v6(dst));
-}
-
-u32
-ip_fib_get_egress_iface_for_dst_with_lm (lisp_cp_main_t * lcm,
- ip_address_t * dst,
- ip_lookup_main_t * lm)
-{
- u32 adj_index;
- ip_adjacency_t * adj;
-
- adj_index = ip_fib_lookup_with_table (lcm, 0, dst);
- adj = ip_get_adjacency (lm, adj_index);
-
- if (adj == 0)
- return ~0;
-
- /* we only want outgoing routes */
- if (adj->lookup_next_index != IP_LOOKUP_NEXT_ARP
- && adj->lookup_next_index != IP_LOOKUP_NEXT_REWRITE)
- return ~0;
-
- return adj->rewrite_header.sw_if_index;
-}
-
-/**
- * Find the sw_if_index of the interface that would be used to egress towards
- * dst.
- */
-u32
-ip_fib_get_egress_iface_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst)
-{
- ip_lookup_main_t * lm;
-
- lm = ip_addr_version (dst) == IP4 ?
- &lcm->im4->lookup_main : &lcm->im6->lookup_main;
-
- return ip_fib_get_egress_iface_for_dst_with_lm (lcm, dst, lm);
-}
-
-/**
- * Find first IP of the interface that would be used to egress towards dst.
- * Returns 1 if the address is found 0 otherwise.
- */
-int
-ip_fib_get_first_egress_ip_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst,
- ip_address_t * result)
-{
- u32 si;
- ip_lookup_main_t * lm;
- void * addr = 0;
- u8 ipver;
-
- ASSERT(result != 0);
-
- ipver = ip_addr_version(dst);
-
- lm = (ipver == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
- si = ip_fib_get_egress_iface_for_dst_with_lm (lcm, dst, lm);
-
- if ((u32) ~0 == si)
- return 0;
+{
+ gid_address_t dst_eid;
+ ip_address_t map_resolver_ip;
+} lisp_cp_lookup_trace_t;
- /* find the first ip address */
- addr = ip_interface_get_first_address (lm, si, ipver);
- if (0 == addr)
- return 0;
+u8 *
+format_lisp_cp_lookup_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ lisp_cp_lookup_trace_t * t = va_arg (*args, lisp_cp_lookup_trace_t *);
- ip_address_set (result, addr, ipver);
- return 1;
+ s = format (s, "LISP-CP-LOOKUP: map-resolver: %U destination eid %U",
+ format_ip_address, &t->map_resolver_ip, format_gid_address,
+ &t->dst_eid);
+ return s;
}
int
get_mr_and_local_iface_ip (lisp_cp_main_t * lcm, ip_address_t * mr_ip,
ip_address_t * sloc)
{
- ip_address_t * mrit;
+ map_resolver_t * mrit;
+ ip_address_t * a;
if (vec_len(lcm->map_resolvers) == 0)
{
* iface that has a route to it */
vec_foreach(mrit, lcm->map_resolvers)
{
- if (0 != ip_fib_get_first_egress_ip_for_dst (lcm, mrit, sloc)) {
- ip_address_copy(mr_ip, mrit);
+ a = &mrit->address;
+ if (0 != ip_fib_get_first_egress_ip_for_dst (lcm, a, sloc))
+ {
+ ip_address_copy(mr_ip, a);
+
+ /* also update globals */
return 1;
- }
+ }
}
clib_warning("Can't find map-resolver and local interface ip!");
addr = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
ip_address_set (rloc, addr, IP4);
ip_prefix_len (ippref) = 32;
+ ip_prefix_normalize (ippref);
vec_add1 (rlocs, gid[0]);
}));
addr = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
ip_address_set (rloc, addr, IP6);
ip_prefix_len (ippref) = 128;
+ ip_prefix_normalize (ippref);
vec_add1 (rlocs, gid[0]);
}));
}
}
static vlib_buffer_t *
-build_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
+build_encapsulated_map_request (lisp_cp_main_t *lcm,
gid_address_t * seid, gid_address_t * deid,
locator_set_t * loc_set, ip_address_t * mr_ip,
ip_address_t * sloc, u8 is_smr_invoked,
vlib_buffer_t * b;
u32 bi;
gid_address_t * rlocs = 0;
+ vlib_main_t * vm = lcm->vlib_main;
if (vlib_buffer_alloc (vm, &bi, 1) != 1)
{
}
static void
-send_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
- gid_address_t * seid, gid_address_t * deid,
- u8 is_smr_invoked)
+reset_pending_mr_counters (pending_map_request_t * r)
+{
+ r->time_to_expire = PENDING_MREQ_EXPIRATION_TIME;
+ r->retries_num = 0;
+}
+
+static int
+elect_map_resolver (lisp_cp_main_t * lcm)
+{
+ map_resolver_t * mr;
+
+ vec_foreach (mr, lcm->map_resolvers)
+ {
+ if (!mr->is_down)
+ {
+ ip_address_copy (&lcm->active_map_resolver, &mr->address);
+ lcm->do_map_resolver_election = 0;
+ return 1;
+ }
+ }
+ return 0;
+}
+
+#define send_encapsulated_map_request(lcm, seid, deid, smr) \
+ _send_encapsulated_map_request(lcm, seid, deid, smr, 0)
+
+#define resend_encapsulated_map_request(lcm, seid, deid, smr) \
+ _send_encapsulated_map_request(lcm, seid, deid, smr, 1)
+
+static int
+_send_encapsulated_map_request (lisp_cp_main_t *lcm,
+ gid_address_t * seid, gid_address_t * deid,
+ u8 is_smr_invoked, u8 is_resend)
{
+ map_resolver_t * mr;
u32 next_index, bi = 0, * to_next, map_index;
vlib_buffer_t * b;
vlib_frame_t * f;
u64 nonce = 0;
locator_set_t * loc_set;
mapping_t * map;
- pending_map_request_t * pmr;
- ip_address_t mr_ip, sloc;
+ pending_map_request_t * pmr, * duplicate_pmr = 0;
+ ip_address_t sloc;
u32 ls_index;
+ ASSERT (*lcm->pending_map_request_lock);
+
+ /* if there is already a pending request remember it */
+ pool_foreach(pmr, lcm->pending_map_requests_pool,
+ ({
+ if (!gid_address_cmp (&pmr->src, seid)
+ && !gid_address_cmp (&pmr->dst, deid))
+ {
+ duplicate_pmr = pmr;
+ break;
+ }
+ }));
+
+ if (!is_resend && duplicate_pmr)
+ {
+ /* don't send the request if there is a pending map request already */
+ return 0;
+ }
+
/* get locator-set for seid */
if (!lcm->lisp_pitr)
{
{
clib_warning("No local mapping found in eid-table for %U!",
format_gid_address, seid);
- return;
+ return -1;
}
map = pool_elt_at_index (lcm->mapping_pool, map_index);
{
clib_warning("Mapping found for src eid %U is not marked as local!",
format_gid_address, seid);
- return;
+ return -1;
}
ls_index = map->locator_set_index;
}
loc_set = pool_elt_at_index (lcm->locator_set_pool, ls_index);
- /* get local iface ip to use in map-request */
- if (0 == get_mr_and_local_iface_ip (lcm, &mr_ip, &sloc))
- return;
+ while (lcm->do_map_resolver_election
+ | (0 == ip_fib_get_first_egress_ip_for_dst (lcm,
+ &lcm->active_map_resolver,
+ &sloc)))
+ {
+ if (0 == elect_map_resolver (lcm))
+ /* all Mrs are down */
+ {
+ if (duplicate_pmr)
+ duplicate_pmr->to_be_removed = 1;
+
+ /* restart MR checking by marking all of them up */
+ vec_foreach (mr, lcm->map_resolvers)
+ mr->is_down = 0;
+
+ return -1;
+ }
+ }
/* build the encapsulated map request */
- b = build_encapsulated_map_request (vm, lcm, seid, deid, loc_set, &mr_ip,
+ b = build_encapsulated_map_request (lcm, seid, deid, loc_set,
+ &lcm->active_map_resolver,
&sloc, is_smr_invoked, &nonce, &bi);
if (!b)
- return;
+ return -1;
- /* set fib index and lookup node */
- vnet_buffer(b)->sw_if_index[VLIB_TX] = ~0;
- next_index = (ip_addr_version(&mr_ip) == IP4) ?
+ /* set fib index to default and lookup node */
+ vnet_buffer(b)->sw_if_index[VLIB_TX] = 0;
+ next_index = (ip_addr_version(&lcm->active_map_resolver) == IP4) ?
ip4_lookup_node.index : ip6_lookup_node.index;
- f = vlib_get_frame_to_node (vm, next_index);
+ f = vlib_get_frame_to_node (lcm->vlib_main, next_index);
/* Enqueue the packet */
to_next = vlib_frame_vector_args (f);
to_next[0] = bi;
f->n_vectors = 1;
- vlib_put_frame_to_node (vm, next_index, f);
+ vlib_put_frame_to_node (lcm->vlib_main, next_index, f);
+
+ if (duplicate_pmr)
+ /* if there is a pending request already update it */
+ {
+ if (vec_len (duplicate_pmr->nonces) >= PENDING_MREQ_QUEUE_LEN)
+ {
+ /* remove the oldest nonce */
+ u64 * nonce_del = vec_elt_at_index (duplicate_pmr->nonces, 0);
+ hash_unset (lcm->pending_map_requests_by_nonce, nonce_del[0]);
+ vec_del1 (duplicate_pmr->nonces, 0);
+ }
+
+ vec_add1 (duplicate_pmr->nonces, nonce);
+ hash_set (lcm->pending_map_requests_by_nonce, nonce,
+ duplicate_pmr - lcm->pending_map_requests_pool);
+ }
+ else
+ {
+ /* add map-request to pending requests table */
+ pool_get(lcm->pending_map_requests_pool, pmr);
+ memset (pmr, 0, sizeof (*pmr));
+ gid_address_copy (&pmr->src, seid);
+ gid_address_copy (&pmr->dst, deid);
+ vec_add1 (pmr->nonces, nonce);
+ pmr->is_smr_invoked = is_smr_invoked;
+ reset_pending_mr_counters (pmr);
+ hash_set (lcm->pending_map_requests_by_nonce, nonce,
+ pmr - lcm->pending_map_requests_pool);
+ }
- /* add map-request to pending requests table */
- pool_get(lcm->pending_map_requests_pool, pmr);
- gid_address_copy (&pmr->src, seid);
- gid_address_copy (&pmr->dst, deid);
- pmr->src_mapping_index = map_index;
- hash_set(lcm->pending_map_requests_by_nonce, nonce,
- pmr - lcm->pending_map_requests_pool);
+ return 0;
}
static void
-get_src_and_dst (void *hdr, ip_address_t * src, ip_address_t *dst)
+get_src_and_dst_ip (void *hdr, ip_address_t * src, ip_address_t *dst)
{
ip4_header_t * ip4 = hdr;
ip6_header_t * ip6;
}
static u32
-lisp_get_vni_from_buffer (vlib_buffer_t * b, u8 version)
+lisp_get_vni_from_buffer_ip (lisp_cp_main_t * lcm, vlib_buffer_t * b,
+ u8 version)
{
uword * vnip;
u32 vni = ~0, table_id = ~0, fib_index;
- lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
if (version == IP4)
{
return vni;
}
+always_inline u32
+lisp_get_vni_from_buffer_eth (lisp_cp_main_t * lcm, vlib_buffer_t * b)
+{
+ uword * vnip;
+ u32 vni = ~0;
+ u32 sw_if_index0;
+
+ l2input_main_t * l2im = &l2input_main;
+ l2_input_config_t * config;
+ l2_bridge_domain_t * bd_config;
+
+ sw_if_index0 = vnet_buffer(b)->sw_if_index[VLIB_RX];
+ config = vec_elt_at_index(l2im->configs, sw_if_index0);
+ bd_config = vec_elt_at_index (l2im->bd_configs, config->bd_index);
+
+ vnip = hash_get (lcm->vni_by_bd_id, bd_config->bd_id);
+ if (vnip)
+ vni = vnip[0];
+ else
+ clib_warning("bridge domain %d is not mapped to any vni!",
+ config->bd_index);
+
+ return vni;
+}
+
+always_inline void
+get_src_and_dst_eids_from_buffer (lisp_cp_main_t *lcm, vlib_buffer_t * b,
+ gid_address_t * src, gid_address_t * dst)
+{
+ u32 vni = 0;
+ u16 type;
+
+ memset (src, 0, sizeof (*src));
+ memset (dst, 0, sizeof (*dst));
+ type = vnet_buffer(b)->lisp.overlay_afi;
+
+ if (LISP_AFI_IP == type || LISP_AFI_IP6 == type)
+ {
+ ip4_header_t * ip;
+ u8 version, preflen;
+
+ gid_address_type(src) = GID_ADDR_IP_PREFIX;
+ gid_address_type(dst) = GID_ADDR_IP_PREFIX;
+
+ ip = vlib_buffer_get_current (b);
+ get_src_and_dst_ip (ip, &gid_address_ip(src), &gid_address_ip(dst));
+
+ version = gid_address_ip_version(src);
+ preflen = ip_address_max_len (version);
+ gid_address_ippref_len(src) = preflen;
+ gid_address_ippref_len(dst) = preflen;
+
+ vni = lisp_get_vni_from_buffer_ip (lcm, b, version);
+ gid_address_vni (dst) = vni;
+ gid_address_vni (src) = vni;
+ }
+ else if (LISP_AFI_MAC == type)
+ {
+ ethernet_header_t * eh;
+
+ eh = vlib_buffer_get_current (b);
+
+ gid_address_type(src) = GID_ADDR_MAC;
+ gid_address_type(dst) = GID_ADDR_MAC;
+ mac_copy(&gid_address_mac(src), eh->src_address);
+ mac_copy(&gid_address_mac(dst), eh->dst_address);
+
+ /* get vni */
+ vni = lisp_get_vni_from_buffer_eth (lcm, b);
+
+ gid_address_vni (dst) = vni;
+ gid_address_vni (src) = vni;
+ }
+}
+
static uword
lisp_cp_lookup (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_frame_t * from_frame)
while (n_left_from > 0 && n_left_to_next_drop > 0)
{
- u32 pi0, vni;
- vlib_buffer_t * p0;
- ip4_header_t * ip0;
+ u32 pi0;
+ vlib_buffer_t * b0;
gid_address_t src, dst;
- ip_prefix_t * spref, * dpref;
-
- gid_address_type (&src) = GID_ADDR_IP_PREFIX;
- spref = &gid_address_ippref(&src);
- gid_address_type (&dst) = GID_ADDR_IP_PREFIX;
- dpref = &gid_address_ippref(&dst);
pi0 = from[0];
from += 1;
to_next_drop += 1;
n_left_to_next_drop -= 1;
- p0 = vlib_get_buffer (vm, pi0);
- p0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP];
+ b0 = vlib_get_buffer (vm, pi0);
+ b0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP];
/* src/dst eid pair */
- ip0 = vlib_buffer_get_current (p0);
- get_src_and_dst (ip0, &ip_prefix_addr(spref), &ip_prefix_addr(dpref));
- ip_prefix_len(spref) = ip_address_max_len (ip_prefix_version(spref));
- ip_prefix_len(dpref) = ip_address_max_len (ip_prefix_version(dpref));
-
- vni = lisp_get_vni_from_buffer (p0, ip_prefix_version (spref));
- gid_address_vni (&dst) = vni;
- gid_address_vni (&src) = vni;
+ get_src_and_dst_eids_from_buffer (lcm, b0, &src, &dst);
/* if we have remote mapping for destination already in map-chache
add forwarding tunnel directly. If not send a map-request */
mapping_t * m = vec_elt_at_index (lcm->mapping_pool, di);
/* send a map-request also in case of negative mapping entry
with corresponding action */
- if (m->action == ACTION_SEND_MAP_REQUEST)
+ if (m->action == LISP_SEND_MAP_REQUEST)
{
/* send map-request */
- send_encapsulated_map_request (vm, lcm, &src, &dst, 0);
+ queue_map_request (&src, &dst, 0 /* smr_invoked */,
+ 0 /* is_resend */);
pkts_mapped++;
}
else
{
si = gid_dictionary_lookup (&lcm->mapping_index_by_gid,
&src);
- if (~0 != si)
- {
- add_fwd_entry (lcm, si, di);
- }
- }
- }
- else
- {
- /* send map-request */
- send_encapsulated_map_request (vm, lcm, &src, &dst, 0);
- pkts_mapped++;
- }
-
- if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED))
- {
- lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, p0,
- sizeof(*tr));
-
- memset(tr, 0, sizeof(*tr));
- gid_address_copy (&tr->dst_eid, &dst);
- if (vec_len(lcm->map_resolvers) > 0)
- {
- clib_memcpy (&tr->map_resolver_ip,
- vec_elt_at_index(lcm->map_resolvers, 0),
- sizeof(ip_address_t));
- }
- }
- gid_address_free (&dst);
- gid_address_free (&src);
- }
-
- vlib_put_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP, n_left_to_next_drop);
- }
- vlib_node_increment_counter (vm, node->node_index,
- LISP_CP_LOOKUP_ERROR_MAP_REQUESTS_SENT,
- pkts_mapped);
- return from_frame->n_vectors;
-}
-
-VLIB_REGISTER_NODE (lisp_cp_lookup_node) = {
- .function = lisp_cp_lookup,
- .name = "lisp-cp-lookup",
- .vector_size = sizeof (u32),
- .format_trace = format_lisp_cp_lookup_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = LISP_CP_LOOKUP_N_ERROR,
- .error_strings = lisp_cp_lookup_error_strings,
-
- .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
-
- .next_nodes = {
- [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
- [LISP_CP_LOOKUP_NEXT_IP4_LOOKUP] = "ip4-lookup",
- [LISP_CP_LOOKUP_NEXT_IP6_LOOKUP] = "ip6-lookup",
- },
-};
-
-/* lisp_cp_input statistics */
-#define foreach_lisp_cp_input_error \
-_(DROP, "drop") \
-_(MAP_REPLIES_RECEIVED, "map-replies received")
-
-static char * lisp_cp_input_error_strings[] = {
-#define _(sym,string) string,
- foreach_lisp_cp_input_error
-#undef _
-};
-
-typedef enum
-{
-#define _(sym,str) LISP_CP_INPUT_ERROR_##sym,
- foreach_lisp_cp_input_error
-#undef _
- LISP_CP_INPUT_N_ERROR,
-} lisp_cp_input_error_t;
-
-typedef enum
-{
- LISP_CP_INPUT_NEXT_DROP,
- LISP_CP_INPUT_N_NEXT,
-} lisp_cp_input_next_t;
-
-typedef struct
-{
- gid_address_t dst_eid;
- ip4_address_t map_resolver_ip;
-} lisp_cp_input_trace_t;
-
-u8 *
-format_lisp_cp_input_trace (u8 * s, va_list * args)
-{
- CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
- CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- CLIB_UNUSED(lisp_cp_input_trace_t * t) = va_arg (*args, lisp_cp_input_trace_t *);
-
- s = format (s, "LISP-CP-INPUT: TODO");
- return s;
-}
-
-static void
-del_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;
- fwd_entry_t * fe = 0;
- uword * feip = 0;
- memset(a, 0, sizeof(*a));
-
- feip = hash_get(lcm->fwd_entry_by_mapping_index, dst_map_index);
- if (!feip)
- return;
-
- fe = pool_elt_at_index(lcm->fwd_entry_pool, feip[0]);
-
- /* delete dp fwd entry */
- u32 sw_if_index;
- a->is_add = 0;
- a->dlocator = fe->dst_loc;
- a->slocator = fe->src_loc;
- a->vni = gid_address_vni(&a->deid);
- gid_address_copy(&a->deid, &fe->deid);
-
- vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
-
- /* delete entry in fwd table */
- hash_unset(lcm->fwd_entry_by_mapping_index, dst_map_index);
- pool_put(lcm->fwd_entry_pool, fe);
-}
-
-/**
- * Finds first remote locator with best (lowest) priority that has a local
- * peer locator with an underlying route to it.
- *
- */
-static u32
-get_locator_pair (lisp_cp_main_t* lcm, mapping_t * lcl_map, mapping_t * rmt_map,
- ip_address_t * lcl_loc, ip_address_t * rmt_loc)
-{
- u32 i, minp = ~0, limitp = 0, li, check_index = 0, done = 0, esi;
- locator_set_t * rmt_ls, * lcl_ls;
- ip_address_t _lcl, * lcl = &_lcl;
- locator_t * l, * rmt = 0;
- uword * checked = 0;
-
- rmt_ls = pool_elt_at_index(lcm->locator_set_pool, rmt_map->locator_set_index);
- lcl_ls = pool_elt_at_index(lcm->locator_set_pool, lcl_map->locator_set_index);
-
- if (!rmt_ls || vec_len(rmt_ls->locator_indices) == 0)
- return 0;
-
- while (!done)
- {
- /* find unvisited remote locator with best priority */
- for (i = 0; i < vec_len(rmt_ls->locator_indices); i++)
- {
- if (0 != hash_get(checked, i))
- continue;
-
- li = vec_elt(rmt_ls->locator_indices, i);
- l = pool_elt_at_index(lcm->locator_pool, li);
-
- /* we don't support non-IP locators for now */
- if (gid_address_type(&l->address) != GID_ADDR_IP_PREFIX)
- continue;
-
- if (l->priority < minp && l->priority >= limitp)
+ if (~0 != si)
+ {
+ dp_add_fwd_entry (lcm, si, di);
+ }
+ }
+ }
+ else
{
- minp = l->priority;
- rmt = l;
- check_index = i;
+ /* send map-request */
+ queue_map_request (&src, &dst, 0 /* smr_invoked */,
+ 0 /* is_resend */);
+ pkts_mapped++;
}
- }
- /* check if a local locator with a route to remote locator exists */
- if (rmt != 0)
- {
- esi = ip_fib_get_egress_iface_for_dst (
- lcm, &gid_address_ip(&rmt->address));
- if ((u32) ~0 == esi)
- continue;
- for (i = 0; i < vec_len(lcl_ls->locator_indices); i++)
+ if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
{
- li = vec_elt (lcl_ls->locator_indices, i);
- locator_t * sl = pool_elt_at_index (lcm->locator_pool, li);
+ lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, b0,
+ sizeof(*tr));
- /* found local locator */
- if (sl->sw_if_index == esi)
+ memset(tr, 0, sizeof(*tr));
+ gid_address_copy (&tr->dst_eid, &dst);
+ if (vec_len(lcm->map_resolvers) > 0)
{
- if (0 == ip_interface_get_first_ip_address (lcm,
- sl->sw_if_index,
- gid_address_ip_version(&rmt->address), lcl))
- continue;
-
- ip_address_copy(rmt_loc, &gid_address_ip(&rmt->address));
- ip_address_copy(lcl_loc, lcl);
- done = 2;
+ clib_memcpy (&tr->map_resolver_ip,
+ vec_elt_at_index(lcm->map_resolvers, 0),
+ sizeof(ip_address_t));
}
}
-
- /* skip this remote locator in next searches */
- limitp = minp;
- hash_set(checked, check_index, 1);
+ gid_address_free (&dst);
+ gid_address_free (&src);
}
- else
- done = 1;
+
+ vlib_put_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP, n_left_to_next_drop);
}
- hash_free(checked);
- return (done == 2) ? 1 : 0;
+ vlib_node_increment_counter (vm, node->node_index,
+ LISP_CP_LOOKUP_ERROR_MAP_REQUESTS_SENT,
+ pkts_mapped);
+ return from_frame->n_vectors;
}
-static void
-add_fwd_entry (lisp_cp_main_t* lcm, u32 src_map_index, u32 dst_map_index)
-{
- mapping_t * src_map, * dst_map;
- u32 sw_if_index;
- uword * feip = 0, * tidp;
- fwd_entry_t* fe;
- vnet_lisp_gpe_add_del_fwd_entry_args_t _a, * a = &_a;
-
- memset (a, 0, sizeof(*a));
-
- /* remove entry if it already exists */
- feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index);
- if (feip)
- del_fwd_entry (lcm, src_map_index, dst_map_index);
-
- src_map = pool_elt_at_index (lcm->mapping_pool, src_map_index);
- dst_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index);
-
- gid_address_copy (&a->deid, &dst_map->eid);
- a->vni = gid_address_vni(&a->deid);
-
- tidp = hash_get(lcm->table_id_by_vni, a->vni);
- if (!tidp)
- {
- clib_warning("vni %d not associated to a vrf!", a->vni);
- return;
- }
- a->table_id = tidp[0];
+VLIB_REGISTER_NODE (lisp_cp_lookup_node) = {
+ .function = lisp_cp_lookup,
+ .name = "lisp-cp-lookup",
+ .vector_size = sizeof (u32),
+ .format_trace = format_lisp_cp_lookup_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
- /* insert data plane forwarding entry */
- a->is_add = 1;
+ .n_errors = LISP_CP_LOOKUP_N_ERROR,
+ .error_strings = lisp_cp_lookup_error_strings,
- /* find best locator pair that 1) verifies LISP policy 2) are connected */
- if (0 == get_locator_pair (lcm, src_map, dst_map, &a->slocator, &a->dlocator))
- {
- /* negative entry */
- a->is_negative = 1;
- a->action = dst_map->action;
- }
+ .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
- /* TODO remove */
- u8 ipver = ip_prefix_version(&gid_address_ippref(&a->deid));
- a->decap_next_index = (ipver == IP4) ?
- LISP_GPE_INPUT_NEXT_IP4_INPUT : LISP_GPE_INPUT_NEXT_IP6_INPUT;
+ .next_nodes = {
+ [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
+ [LISP_CP_LOOKUP_NEXT_IP4_LOOKUP] = "ip4-lookup",
+ [LISP_CP_LOOKUP_NEXT_IP6_LOOKUP] = "ip6-lookup",
+ },
+};
- vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
+/* lisp_cp_input statistics */
+#define foreach_lisp_cp_input_error \
+_(DROP, "drop") \
+_(MAP_REPLIES_RECEIVED, "map-replies received")
- /* add tunnel to fwd entry table XXX check return value from DP insertion */
- pool_get (lcm->fwd_entry_pool, fe);
- fe->dst_loc = a->dlocator;
- fe->src_loc = a->slocator;
- gid_address_copy (&fe->deid, &a->deid);
- hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index,
- fe - lcm->fwd_entry_pool);
-}
+static char * lisp_cp_input_error_strings[] = {
+#define _(sym,string) string,
+ foreach_lisp_cp_input_error
+#undef _
+};
-/* return 0 if the two locator sets are identical 1 otherwise */
-static u8
-compare_locators (lisp_cp_main_t *lcm, u32 * old_ls_indexes,
- locator_t * new_locators)
+typedef enum
{
- u32 i, old_li;
- locator_t * old_loc, * new_loc;
+#define _(sym,str) LISP_CP_INPUT_ERROR_##sym,
+ foreach_lisp_cp_input_error
+#undef _
+ LISP_CP_INPUT_N_ERROR,
+} lisp_cp_input_error_t;
- if (vec_len (old_ls_indexes) != vec_len(new_locators))
- return 1;
+typedef enum
+{
+ LISP_CP_INPUT_NEXT_DROP,
+ LISP_CP_INPUT_N_NEXT,
+} lisp_cp_input_next_t;
- for (i = 0; i < vec_len(new_locators); i++)
- {
- old_li = vec_elt(old_ls_indexes, i);
- old_loc = pool_elt_at_index(lcm->locator_pool, old_li);
+typedef struct
+{
+ gid_address_t dst_eid;
+ ip4_address_t map_resolver_ip;
+} lisp_cp_input_trace_t;
- new_loc = vec_elt_at_index(new_locators, i);
+u8 *
+format_lisp_cp_input_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ CLIB_UNUSED(lisp_cp_input_trace_t * t) = va_arg (*args, lisp_cp_input_trace_t *);
- if (locator_cmp (old_loc, new_loc))
- return 1;
- }
- return 0;
+ s = format (s, "LISP-CP-INPUT: TODO");
+ return s;
}
-void
-process_map_reply (lisp_cp_main_t * lcm, vlib_buffer_t * b)
+void *
+process_map_reply (void * arg)
{
- mapping_t * old_map;
- locator_t * loc;
- u32 len = 0, i, ls_index = 0;
+ lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
+ vlib_buffer_t * b = arg;
+ u32 len = 0, i, ttl, dst_map_index = 0;
void * h;
- vnet_lisp_add_del_locator_set_args_t _ls_arg, * ls_arg = &_ls_arg;
- vnet_lisp_add_del_mapping_args_t _m_args, * m_args = &_m_args;
pending_map_request_t * pmr;
locator_t probed;
map_reply_hdr_t * mrep_hdr;
- u64 nonce;
- u32 dst_map_index, mi;
+ u64 nonce, * noncep;
+ gid_address_t deid;
uword * pmr_index;
+ u8 authoritative, action;
+ locator_t * locators = 0, * loc;
mrep_hdr = vlib_buffer_get_current (b);
+ lisp_pending_map_request_lock (lcm);
+
/* Check pending requests table and nonce */
nonce = MREP_NONCE(mrep_hdr);
pmr_index = hash_get(lcm->pending_map_requests_by_nonce, nonce);
if (!pmr_index)
{
clib_warning("No pending map-request entry with nonce %lu!", nonce);
- return;
+ goto done;
}
pmr = pool_elt_at_index(lcm->pending_map_requests_pool, pmr_index[0]);
for (i = 0; i < MREP_REC_COUNT(mrep_hdr); i++)
{
- memset (ls_arg, 0, sizeof(*ls_arg));
- memset (m_args, 0, sizeof(*m_args));
-
h = vlib_buffer_get_current (b);
- m_args->ttl = clib_net_to_host_u32 (MAP_REC_TTL(h));
- m_args->action = MAP_REC_ACTION(h);
- m_args->authoritative = MAP_REC_AUTH(h);
+ ttl = clib_net_to_host_u32 (MAP_REC_TTL(h));
+ action = MAP_REC_ACTION(h);
+ authoritative = MAP_REC_AUTH(h);
- len = lisp_msg_parse_mapping_record (b, &m_args->deid, &ls_arg->locators,
- &probed);
+ len = lisp_msg_parse_mapping_record (b, &deid, &locators, &probed);
if (len == ~0)
{
clib_warning ("Failed to parse mapping record!");
- vec_foreach (loc, ls_arg->locators)
+ vec_foreach (loc, locators)
{
locator_free (loc);
}
- vec_free(ls_arg->locators);
- return;
+ vec_free(locators);
+ goto done;
}
- mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &m_args->deid);
- old_map = mi != ~0 ? pool_elt_at_index(lcm->mapping_pool, mi) : 0;
-
- /* if mapping already exists, decide if locators (and forwarding) should
- * be updated and be done */
- if (old_map != 0 && !gid_address_cmp (&old_map->eid, &m_args->deid))
- {
- locator_set_t * old_ls;
-
- /* update mapping attributes */
- old_map->action = m_args->action;
- old_map->authoritative = m_args->authoritative;
- old_map->ttl = m_args->ttl;
-
- old_ls = pool_elt_at_index(lcm->locator_set_pool,
- old_map->locator_set_index);
- /* if the two locators are not equal, update them and forwarding
- * otherwise there's nothing to be done */
- if (compare_locators (lcm, old_ls->locator_indices, ls_arg->locators))
- {
- /* set locator-set index to overwrite */
- ls_arg->is_add = 1;
- ls_arg->index = old_map->locator_set_index;
- vnet_lisp_add_del_locator_set (ls_arg, 0);
- add_fwd_entry (lcm, pmr->src_mapping_index, mi);
- }
- }
- /* new mapping */
- else
- {
- /* add locator-set */
- ls_arg->is_add = 1;
- ls_arg->index = ~0;
- vnet_lisp_add_del_locator_set (ls_arg, &ls_index);
+ /* insert/update mappings cache */
+ vnet_lisp_add_del_mapping (&deid, locators, action, authoritative, ttl, 1,
+ &dst_map_index);
- /* add mapping */
- m_args->is_add = 1;
- m_args->locator_set_index = ls_index;
- vnet_lisp_add_del_mapping (m_args, &dst_map_index);
+ /* try to program forwarding only if mapping saved or updated*/
+ if ((u32) ~0 != dst_map_index)
+ lisp_add_del_adjacency (lcm, &pmr->src, &deid, 1);
- /* add forwarding tunnel */
- add_fwd_entry (lcm, pmr->src_mapping_index, dst_map_index);
- }
- vec_free(ls_arg->locators);
+ vec_free(locators);
}
/* remove pending map request entry */
- hash_unset(lcm->pending_map_requests_by_nonce, nonce);
+ vec_foreach (noncep, pmr->nonces)
+ hash_unset(lcm->pending_map_requests_by_nonce, noncep[0]);
+ vec_free(pmr->nonces);
pool_put(lcm->pending_map_requests_pool, pmr);
+
+done:
+ lisp_pending_map_request_unlock (lcm);
+ return 0;
}
void
return;
}
/* send SMR-invoked map-requests */
- send_encapsulated_map_request (vm, lcm, &dst, &src, /* invoked */ 1);
+ queue_map_request (&dst, &src, 1 /* invoked */, 0 /* resend */);
}
}
+static void
+queue_map_reply (vlib_buffer_t * b)
+{
+ vlib_buffer_t * a = clib_mem_alloc (sizeof (a[0]) + b->current_length);
+
+ clib_memcpy (a->data, b->data + b->current_data,
+ b->current_length);
+ a->current_length = b->current_length;
+ a->current_data = 0;
+
+ vl_api_rpc_call_main_thread (process_map_reply, (u8 *) a, sizeof (a[0])
+ + a->current_length);
+ clib_mem_free (a);
+}
+
static uword
lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_frame_t * from_frame)
switch (type)
{
case LISP_MAP_REPLY:
- process_map_reply (lcm, b0);
+ queue_map_reply (b0);
break;
case LISP_MAP_REQUEST:
process_map_request(vm, lcm, b0);
lcm->vlib_main = vm;
lcm->vnet_main = vnet_get_main();
lcm->mreq_itr_rlocs = ~0;
+ lcm->lisp_pitr = 0;
+
+ lcm->pending_map_request_lock =
+ clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, CLIB_CACHE_LINE_BYTES);
+ lcm->pending_map_request_lock[0] = 0;
gid_dictionary_init (&lcm->mapping_index_by_gid);
+ lcm->do_map_resolver_election = 1;
/* default vrf mapped to vni 0 */
hash_set(lcm->table_id_by_vni, 0, 0);
return 0;
}
+static void *
+send_map_request_thread_fn (void * arg)
+{
+ map_request_args_t * a = arg;
+ lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
+
+ lisp_pending_map_request_lock (lcm);
+
+ if (a->is_resend)
+ resend_encapsulated_map_request (lcm, &a->seid, &a->deid, a->smr_invoked);
+ else
+ send_encapsulated_map_request (lcm, &a->seid, &a->deid, a->smr_invoked);
+
+ lisp_pending_map_request_unlock (lcm);
+
+ return 0;
+}
+
+static int
+queue_map_request (gid_address_t * seid, gid_address_t * deid,
+ u8 smr_invoked, u8 is_resend)
+{
+ map_request_args_t a;
+
+ a.is_resend = is_resend;
+ gid_address_copy (&a.seid, seid);
+ gid_address_copy (&a.deid, deid);
+ a.smr_invoked = smr_invoked;
+
+ vl_api_rpc_call_main_thread (send_map_request_thread_fn,
+ (u8 *) &a, sizeof (a));
+ return 0;
+}
+
+/**
+ * Take an action with a pending map request depending on expiration time
+ * and re-try counters.
+ */
+static void
+update_pending_request (pending_map_request_t * r, f64 dt)
+{
+ lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
+ map_resolver_t * mr;
+
+ if (r->time_to_expire - dt < 0)
+ /* it's time to decide what to do with this pending request */
+ {
+ if (r->retries_num >= NUMBER_OF_RETRIES)
+ /* too many retries -> assume current map resolver is not available */
+ {
+ mr = get_map_resolver (&lcm->active_map_resolver);
+ if (!mr)
+ {
+ clib_warning ("Map resolver %U not found - probably deleted "
+ "by the user recently.", format_ip_address,
+ &lcm->active_map_resolver);
+ }
+ else
+ {
+ clib_warning ("map resolver %U is unreachable, ignoring",
+ format_ip_address, &lcm->active_map_resolver);
+
+ /* mark current map resolver unavailable so it won't be
+ * selected next time */
+ mr->is_down = 1;
+ mr->last_update = vlib_time_now (lcm->vlib_main);
+ }
+
+ reset_pending_mr_counters (r);
+ elect_map_resolver (lcm);
+
+ /* try to find a next eligible map resolver and re-send */
+ queue_map_request (&r->src, &r->dst, r->is_smr_invoked,
+ 1 /* resend */);
+ }
+ else
+ {
+ /* try again */
+ queue_map_request (&r->src, &r->dst, r->is_smr_invoked,
+ 1 /* resend */);
+ r->retries_num++;
+ r->time_to_expire = PENDING_MREQ_EXPIRATION_TIME;
+ }
+ }
+ else
+ r->time_to_expire -= dt;
+}
+
+static void
+remove_dead_pending_map_requests (lisp_cp_main_t * lcm)
+{
+ u64 * nonce;
+ pending_map_request_t * pmr;
+ u32 * to_be_removed = 0, * pmr_index;
+
+ ASSERT (*lcm->pending_map_request_lock);
+
+ pool_foreach (pmr, lcm->pending_map_requests_pool,
+ ({
+ if (pmr->to_be_removed)
+ {
+ vec_foreach (nonce, pmr->nonces)
+ hash_unset (lcm->pending_map_requests_by_nonce, nonce[0]);
+
+ vec_add1 (to_be_removed, pmr - lcm->pending_map_requests_pool);
+ }
+ }));
+
+ vec_foreach (pmr_index, to_be_removed)
+ pool_put_index (lcm->pending_map_requests_by_nonce, pmr_index[0]);
+
+ vec_free (to_be_removed);
+}
+
+static uword
+send_map_resolver_service (vlib_main_t * vm,
+ vlib_node_runtime_t * rt,
+ vlib_frame_t * f)
+{
+ f64 period = 2.0;
+ pending_map_request_t * pmr;
+ lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
+
+ while (1)
+ {
+ vlib_process_wait_for_event_or_clock (vm, period);
+
+ /* currently no signals are expected - just wait for clock */
+ (void) vlib_process_get_events (vm, 0);
+
+ lisp_pending_map_request_lock (lcm);
+ pool_foreach (pmr, lcm->pending_map_requests_pool,
+ ({
+ if (!pmr->to_be_removed)
+ update_pending_request (pmr, period);
+ }));
+
+ remove_dead_pending_map_requests (lcm);
+
+ lisp_pending_map_request_unlock (lcm);
+ }
+
+ /* unreachable */
+ return 0;
+}
+
+VLIB_REGISTER_NODE (lisp_retry_service_node,static) = {
+ .function = send_map_resolver_service,
+ .type = VLIB_NODE_TYPE_PROCESS,
+ .name = "lisp-retry-service",
+ .process_log2_n_stack_bytes = 16,
+};
+
VLIB_INIT_FUNCTION(lisp_cp_init);
Code Review / vpp.git / blobdiff