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authorAndrej Kozemcak <akozemca@cisco.com>2016-06-14 13:55:57 +0200
committerFlorin Coras <florin.coras@gmail.com>2016-06-17 09:17:31 +0000
commitb6e4d3990ed694fd0aeaa2e4a75c1b4602cf0379 (patch)
tree35770420009384b0d99d426029246e299f7a605d /vnet
parenta29f20068841a05ee5813c1601ba2f07d9398afa (diff)
New LISP API map-request itr-rloc
API to constrain source locator when sending map-requests. lisp map-request itr-rloc <locator-set name> Change-Id: I19f3a1aa8a387ca8662ccf3a4ad774ea7d655f80 Signed-off-by: Andrej Kozemcak <akozemca@cisco.com>
Diffstat (limited to 'vnet')
-rw-r--r--vnet/vnet/lisp-cp/control.c130
-rw-r--r--vnet/vnet/lisp-cp/control.h12
2 files changed, 141 insertions, 1 deletions
diff --git a/vnet/vnet/lisp-cp/control.c b/vnet/vnet/lisp-cp/control.c
index c96ff71c348..537a3340dfd 100644
--- a/vnet/vnet/lisp-cp/control.c
+++ b/vnet/vnet/lisp-cp/control.c
@@ -1075,6 +1075,13 @@ vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a,
return -1;
}
+ if (lcm->mreq_itr_rlocs == p[0])
+ {
+ clib_warning ("Can't delete the locator-set used to constrain "
+ "the itr-rlocs in map-requests!");
+ return -1;
+ }
+
if (vec_len(lcm->locator_set_to_eids) != 0)
{
eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids, p[0]);
@@ -1422,6 +1429,117 @@ VLIB_CLI_COMMAND (lisp_add_del_map_resolver_command) = {
.function = lisp_add_del_map_resolver_command_fn,
};
+int
+vnet_lisp_add_del_mreq_itr_rlocs (vnet_lisp_add_del_mreq_itr_rloc_args_t * 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 (a->is_add)
+ {
+ p = hash_get_mem(lcm->locator_set_index_by_name, a->locator_set_name);
+ if (!p)
+ {
+ clib_warning("locator-set %v doesn't exist", a->locator_set_name);
+ return VNET_API_ERROR_INVALID_ARGUMENT;
+ }
+
+ lcm->mreq_itr_rlocs = p[0];
+ }
+ else
+ {
+ lcm->mreq_itr_rlocs = ~0;
+ }
+
+ return 0;
+}
+
+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)
+{
+ unformat_input_t _line_input, * line_input = &_line_input;
+ u8 is_add = 1;
+ u8 * locator_set_name = 0;
+ clib_error_t * error = 0;
+ int rv = 0;
+ vnet_lisp_add_del_mreq_itr_rloc_args_t _a, * a = &_a;
+
+ /* Get a line of input. */
+ if (! unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "del"))
+ is_add = 0;
+ else if (unformat (line_input, "add %s", &locator_set_name))
+ is_add = 1;
+ else
+ {
+ error = unformat_parse_error(line_input);
+ goto done;
+ }
+ }
+
+ a->is_add = is_add;
+ a->locator_set_name = locator_set_name;
+ rv = vnet_lisp_add_del_mreq_itr_rlocs (a);
+ if (0 != rv)
+ {
+ error = clib_error_return(0, "failed to %s map-request itr-rlocs!",
+ is_add ? "add" : "delete");
+ }
+
+ vec_free(locator_set_name);
+
+ done:
+ return error;
+
+}
+
+VLIB_CLI_COMMAND (lisp_add_del_map_request_command) = {
+ .path = "lisp map-request itr-rlocs",
+ .short_help = "lisp map-request itr-rlocs add/del <locator_set_name>",
+ .function = lisp_add_del_mreq_itr_rlocs_command_fn,
+};
+
+static clib_error_t *
+lisp_show_mreq_itr_rlocs_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();
+ locator_set_t * loc_set;
+
+ vlib_cli_output (vm, "%=20s", "itr-rlocs");
+
+ if (~0 == lcm->mreq_itr_rlocs)
+ {
+ return 0;
+ }
+
+ loc_set = pool_elt_at_index (lcm->locator_set_pool, lcm->mreq_itr_rlocs);
+
+ vlib_cli_output (vm, "%=20s", loc_set->name);
+
+ return 0;
+}
+
+VLIB_CLI_COMMAND (lisp_show_map_request_command) = {
+ .path = "show lisp map-request itr-rlocs",
+ .short_help = "Shows map-request itr-rlocs",
+ .function = lisp_show_mreq_itr_rlocs_command_fn,
+};
+
/* Statistics (not really errors) */
#define foreach_lisp_cp_lookup_error \
_(DROP, "drop") \
@@ -1713,6 +1831,7 @@ send_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
mapping_t * map;
pending_map_request_t * pmr;
ip_address_t mr_ip, sloc;
+ u32 ls_index;
/* get locator-set for seid */
if (!lcm->lisp_pitr)
@@ -1733,14 +1852,22 @@ send_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
format_gid_address, seid);
return;
}
+ ls_index = map->locator_set_index;
}
else
{
map_index = lcm->pitr_map_index;
map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
+ ls_index = map->locator_set_index;
+ }
+
+ /* overwrite locator set if map-request itr-rlocs configured */
+ if (~0 != lcm->mreq_itr_rlocs)
+ {
+ ls_index = lcm->mreq_itr_rlocs;
}
- loc_set = pool_elt_at_index (lcm->locator_set_pool, 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))
@@ -2391,6 +2518,7 @@ lisp_cp_init (vlib_main_t *vm)
lcm->im6 = &ip6_main;
lcm->vlib_main = vm;
lcm->vnet_main = vnet_get_main();
+ lcm->mreq_itr_rlocs = ~0;
gid_dictionary_init (&lcm->mapping_index_by_gid);
diff --git a/vnet/vnet/lisp-cp/control.h b/vnet/vnet/lisp-cp/control.h
index a81dd2846b4..53c14dd1e01 100644
--- a/vnet/vnet/lisp-cp/control.h
+++ b/vnet/vnet/lisp-cp/control.h
@@ -94,6 +94,9 @@ typedef struct
/* vector of map-resolver addresses */
ip_address_t * map_resolvers;
+ /* map-request locator set index */
+ u32 mreq_itr_rlocs;
+
/* Lookup vrf by vni */
uword * table_id_by_vni;
@@ -186,6 +189,15 @@ vnet_lisp_add_del_remote_mapping (gid_address_t * deid, gid_address_t * seid,
int
vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add);
+typedef struct
+{
+ u8 is_add;
+ u8 * locator_set_name;
+} vnet_lisp_add_del_mreq_itr_rloc_args_t;
+
+int
+vnet_lisp_add_del_mreq_itr_rlocs (vnet_lisp_add_del_mreq_itr_rloc_args_t * a);
+
int vnet_lisp_clear_all_remote_mappings (void);
#endif /* VNET_CONTROL_H_ */