#include <vnet/lisp-cp/lisp_msg_serdes.h>
#include <vnet/lisp-gpe/lisp_gpe.h>
+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_add)
+{
+ uword * table_id, * intf;
+ vnet_lisp_gpe_add_del_iface_args_t _ai, *ai = &_ai;
+
+ table_id = hash_get(lcm->table_id_by_vni, vni);
+
+ if (!table_id)
+ {
+ clib_warning ("vni %d not associated to a vrf!", vni);
+ return VNET_API_ERROR_INVALID_VALUE;
+ }
+
+ intf = hash_get(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->table_id = table_id[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->table_id = table_id[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->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)
+ {
+ 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);
+ 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)
+ {
+ minp = l->priority;
+ rmt = l;
+ check_index = i;
+ }
+ }
+ /* 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++)
+ {
+ li = vec_elt (lcl_ls->locator_indices, i);
+ locator_t * sl = pool_elt_at_index (lcm->locator_pool, li);
+
+ /* found local locator */
+ if (sl->sw_if_index == esi)
+ {
+ 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;
+ }
+ }
+
+ /* skip this remote locator in next searches */
+ limitp = minp;
+ hash_set(checked, check_index, 1);
+ }
+ else
+ done = 1;
+ }
+ hash_free(checked);
+ return (done == 2) ? 1 : 0;
+}
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)
+{
+ 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;
-static u8
-compare_locators (lisp_cp_main_t *lcm, u32 * old_ls_indexes,
- locator_t * new_locators);
+ 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)
+ 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);
-/* Stores mapping in map-cache. It does NOT program data plane forwarding for
- * remote/learned mappings. */
+ 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];
+
+ /* insert data plane forwarding entry */
+ a->is_add = 1;
+
+ /* 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;
+ }
+
+ /* 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;
+
+ 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->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);
+}
+
+/**
+ * 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 * table_id;
+ u32 vni;
+
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;
-
+ vni = gid_address_vni(&a->eid);
table_id = hash_get(lcm->table_id_by_vni, vni);
if (!table_id)
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 *
}
/* XXX treat batch configuration */
- a->deid = eid;
+ 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;
}
}
hash_set (lcm->table_id_by_vni, vni, vrf);
hash_set (lcm->vni_by_table_id, vrf, vni);
+
+ /* create dp iface */
+ dp_add_del_iface (lcm, vni, 1);
}
else
{
}
hash_unset (lcm->table_id_by_vni, vni);
hash_unset (lcm->vni_by_table_id, vrf);
+
+ /* remove dp iface */
+ dp_add_del_iface (lcm, vni, 0);
}
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>",
- .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);
-
- /* 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]++;
+ .function = lisp_eid_table_map_command_fn,
+};
- 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
- {
- 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);
+/* 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;
- 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;
+ if (vec_len (old_ls_indexes) != vec_len(new_locators))
+ return 1;
- /* delete mapping associated to fwd entry */
- vnet_lisp_add_del_mapping (dm_args, 0);
+ 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);
- 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 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
* @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 * deid, 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)
+ 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, deid) == 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, deid);
+ 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, deid) != 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,
+ deid);
+ 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, deid);
+ 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);
}
+
/* 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;
}
}
-cleanup:
- if (map_indices)
- vec_free (map_indices);
- return rv;
+cleanup:
+ if (map_indices)
+ vec_free (map_indices);
+ return rv;
+}
+
+/**
+ * Adds remote mapping and sets it as adjacency for local eid 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,
+ vnet_lisp_add_del_adjacency_args_t * a)
+{
+ u32 src_map_index, dst_map_index = ~0;
+
+ if (vnet_lisp_enable_disable_status () == 0)
+ {
+ clib_warning ("LISP is disabled!");
+ return VNET_API_ERROR_LISP_DISABLED;
+ }
+
+ /* insert/update mappings cache */
+ vnet_lisp_add_del_mapping (&a->deid, a->locators, a->action,
+ a->authoritative, a->ttl, a->is_add,
+ &dst_map_index);
+
+ if (a->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 */
+ src_map_index = lcm->lisp_pitr ? lcm->pitr_map_index :
+ gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->seid);
+
+
+ if (GID_LOOKUP_MISS == src_map_index)
+ {
+ clib_warning("seid %U not found. Cannot program forwarding!",
+ format_gid_address, &a->seid);
+
+ return -1;
+ }
+
+ /* update forwarding if a destination mapping index was found */
+ if ((u32) ~0 != dst_map_index)
+ dp_add_fwd_entry (lcm, src_map_index, dst_map_index);
+ }
+ else
+ dp_del_fwd_entry (lcm, 0, dst_map_index);
+
+ 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);
+}
+
+/**
+ * Handler for add/del remote mapping CLI.
+ *
+ * @param vm vlib context
+ * @param input input from user
+ * @param cmd cmd
+ * @return pointer to clib error structure
+ */
+static clib_error_t *
+lisp_add_del_remote_mapping_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;
+ u8 is_add = 1, del_all = 0;
+ 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(&rloc, 0, sizeof(rloc));
+
+ seid_ippref = &gid_address_ippref(&seid);
+ deid_ippref = &gid_address_ippref(&deid);
+
+ 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, "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))
+ {
+ gid_address_vni (&seid) = vni;
+ gid_address_vni (&deid) = 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, "seid %U",
+ unformat_mac_address, smac))
+ {
+ gid_address_type (&seid) = GID_ADDR_MAC;
+ seid_set = 1;
+ }
+ else if (unformat (line_input, "rloc %U", unformat_ip_address, &rloc.address))
+ 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
+ {
+ clib_warning ("parse error");
+ goto done;
+ }
+ }
+
+ if (!del_all)
+ {
+ if (!deid_set)
+ {
+ clib_warning ("missing deid!");
+ goto done;
+ }
+
+ 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)))
+ {
+ 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;
+ }
+ }
+ 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 ();
+ vnet_lisp_add_del_adjacency_args_t _a, * a = &_a;
+ gid_address_copy(&a->deid, &deid);
+ a->is_add = 0;
+ rv = lisp_add_del_adjacency (lcm, a);
+ }
+ else
+ {
+ /* add as static remote mapping, i.e., not authoritative and infinite
+ * ttl */
+ rv = vnet_lisp_add_del_mapping (&deid, rlocs, action, 0, ~0, is_add, 0);
+ }
+
+ if (rv)
+ clib_warning("failed to %s remote mapping!", is_add ? "add" : "delete");
+
+done:
+ unformat_free (line_input);
+ if (s)
+ vec_free (s);
+ 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>"
+ "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,
+};
+
/**
- * Handler for add/del remote mapping CLI.
- *
- * @param vm vlib context
- * @param input input from user
- * @param cmd cmd
- * @return pointer to clib error structure
+ * Handler for add/del adjacency CLI.
*/
static clib_error_t *
-lisp_add_del_remote_mapping_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+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;
- u8 is_add = 1, del_all = 0;
- ip_address_t rloc, * rlocs = 0;
+ 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 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);
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"))
;
gid_address_type (&seid) = GID_ADDR_MAC;
seid_set = 1;
}
- else if (unformat (line_input, "rloc %U", unformat_ip_address, &rloc))
+ else if (unformat (line_input, "rloc %U", unformat_ip_address, &rloc.address))
vec_add1 (rlocs, rloc);
else if (unformat (line_input, "action %s", &s))
{
}
}
- if (!del_all)
+ if (!deid_set)
{
- if (!deid_set)
- {
- clib_warning ("missing deid!");
- goto done;
- }
-
- 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);
+ clib_warning ("missing deid!");
+ goto done;
+ }
- if (is_add &&
- (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 (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 && (~0 == action)
- && 0 == vec_len (rlocs))
+ if (is_add &&
+ (ip_prefix_version (deid_ippref)
+ != ip_prefix_version(seid_ippref)))
{
- clib_warning ("no action set for negative map-reply!");
+ clib_warning ("source and destination EIDs are not"
+ " in the same IP family!");
goto done;
}
}
- int rv = vnet_lisp_add_del_remote_mapping (&deid, &seid, rlocs,
- action, is_add, del_all);
+ if (is_add && (~0 == action)
+ && 0 == vec_len (rlocs))
+ {
+ clib_warning ("no action set for negative map-reply!");
+ goto done;
+ }
+
+ memset(a, 0, sizeof(a[0]));
+ a->action = action;
+ a->is_add = is_add;
+
+ /* NOTE: the remote mapping is static, i.e., not authoritative and
+ * ttl is infinite. */
+ a->authoritative = 0;
+ a->ttl = ~0;
+
+ 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,
}
}
-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;
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, table_id;
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);
-
- hash_set (lcm->dp_if_refcount_by_vni, ai->vni, 1);
- }
- else
- {
- refc[0]++;
- }
- }
+ hash_foreach(vni, table_id, lcm->table_id_by_vni, ({
+ dp_add_del_iface(lcm, vni, 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;
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;
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;
_(DROP, "drop") \
_(MAP_REQUESTS_SENT, "map-request sent")
-static char * lisp_cp_lookup_error_strings[] = {
-#define _(sym,string) string,
- foreach_lisp_cp_lookup_error
-#undef _
-};
-
-typedef enum
-{
-#define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym,
- foreach_lisp_cp_lookup_error
-#undef _
- LISP_CP_LOOKUP_N_ERROR,
-} lisp_cp_lookup_error_t;
-
-typedef enum
-{
- LISP_CP_LOOKUP_NEXT_DROP,
- LISP_CP_LOOKUP_NEXT_IP4_LOOKUP,
- LISP_CP_LOOKUP_NEXT_IP6_LOOKUP,
- LISP_CP_LOOKUP_N_NEXT,
-} 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);
+static char * lisp_cp_lookup_error_strings[] = {
+#define _(sym,string) string,
+ foreach_lisp_cp_lookup_error
+#undef _
+};
- ipver = ip_addr_version(dst);
+typedef enum
+{
+#define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym,
+ foreach_lisp_cp_lookup_error
+#undef _
+ LISP_CP_LOOKUP_N_ERROR,
+} lisp_cp_lookup_error_t;
- lm = (ipver == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
- si = ip_fib_get_egress_iface_for_dst_with_lm (lcm, dst, lm);
+typedef enum
+{
+ LISP_CP_LOOKUP_NEXT_DROP,
+ LISP_CP_LOOKUP_NEXT_IP4_LOOKUP,
+ LISP_CP_LOOKUP_NEXT_IP6_LOOKUP,
+ LISP_CP_LOOKUP_N_NEXT,
+} lisp_cp_lookup_next_t;
- if ((u32) ~0 == si)
- return 0;
+typedef struct
+{
+ 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
if (!b)
return;
- /* set fib index and lookup node */
- vnet_buffer(b)->sw_if_index[VLIB_TX] = ~0;
+ /* set fib index to default and lookup node */
+ vnet_buffer(b)->sw_if_index[VLIB_TX] = 0;
next_index = (ip_addr_version(&mr_ip) == IP4) ?
ip4_lookup_node.index : ip6_lookup_node.index;
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);
}
&src);
if (~0 != si)
{
- add_fwd_entry (lcm, si, di);
+ dp_add_fwd_entry (lcm, si, di);
}
}
}
};
/* lisp_cp_input statistics */
-#define foreach_lisp_cp_input_error \
-_(DROP, "drop") \
+#define foreach_lisp_cp_input_error \
+_(DROP, "drop") \
_(MAP_REPLIES_RECEIVED, "map-replies received")
static char * lisp_cp_input_error_strings[] = {
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)
- {
- minp = l->priority;
- rmt = l;
- check_index = i;
- }
- }
- /* 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++)
- {
- li = vec_elt (lcl_ls->locator_indices, i);
- locator_t * sl = pool_elt_at_index (lcm->locator_pool, li);
-
- /* found local locator */
- if (sl->sw_if_index == esi)
- {
- 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;
- }
- }
-
- /* skip this remote locator in next searches */
- limitp = minp;
- hash_set(checked, check_index, 1);
- }
- else
- done = 1;
- }
- hash_free(checked);
- return (done == 2) ? 1 : 0;
-}
-
-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];
-
- /* insert data plane forwarding entry */
- a->is_add = 1;
-
- /* 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;
- }
-
- /* 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;
-
- 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->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);
-}
-
-/* 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;
-
- if (vec_len (old_ls_indexes) != vec_len(new_locators))
- return 1;
-
- 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);
-
- new_loc = vec_elt_at_index(new_locators, i);
-
- if (locator_cmp (old_loc, new_loc))
- return 1;
- }
- return 0;
-}
-
void
process_map_reply (lisp_cp_main_t * lcm, vlib_buffer_t * b)
{
- mapping_t * old_map;
- locator_t * loc;
- u32 len = 0, i, ls_index = 0;
+ u32 len = 0, i, ttl;
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;
+ gid_address_t deid;
uword * pmr_index;
+ u8 authoritative, action;
+ locator_t * locators = 0, * loc;
+ vnet_lisp_add_del_adjacency_args_t _a, * a = &_a;
mrep_hdr = vlib_buffer_get_current (b);
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);
+ vec_free(locators);
return;
}
- 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);
+ memset(a, 0, sizeof(*a));
+ a->action = action;
+ a->authoritative = authoritative;
+ a->ttl = ttl;
+ a->locators = locators;
+ gid_address_copy(&a->seid, &pmr->src);
+ gid_address_copy(&a->deid, &deid);
+ a->is_add = 1;
- /* add mapping */
- m_args->is_add = 1;
- m_args->locator_set_index = ls_index;
- vnet_lisp_add_del_mapping (m_args, &dst_map_index);
+ lisp_add_del_adjacency (lcm, a);
- /* 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 */
lcm->vlib_main = vm;
lcm->vnet_main = vnet_get_main();
lcm->mreq_itr_rlocs = ~0;
+ lcm->lisp_pitr = 0;
gid_dictionary_init (&lcm->mapping_index_by_gid);
Code Review / vpp.git / commitdiff