X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=vnet%2Fvnet%2Flisp-cp%2Fcontrol.c;h=de048a4144a6d087816c0366a22c2496163bc634;hb=fb9931ff1687e79461df5f92210d81d96fffa3ad;hp=2d3c2d7471bb286f43474420a070a33f2f4723cb;hpb=195bceec5685cb367519e37f22b36f5f99819827;p=vpp.git diff --git a/vnet/vnet/lisp-cp/control.c b/vnet/vnet/lisp-cp/control.c index 2d3c2d7471b..de048a4144a 100644 --- a/vnet/vnet/lisp-cp/control.c +++ b/vnet/vnet/lisp-cp/control.c @@ -13,1072 +13,2714 @@ * limitations under the License. */ +#include #include #include #include #include +#include +#include +#include +#include + +#include +#include + +typedef struct +{ + u8 is_resend; + gid_address_t seid; + gid_address_t deid; + u8 smr_invoked; +} map_request_args_t; + +typedef struct +{ + u64 nonce; + u8 is_rloc_probe; + mapping_t *mappings; +} map_records_arg_t; + +static int +lisp_add_del_adjacency (lisp_cp_main_t * lcm, gid_address_t * local_eid, + gid_address_t * remote_eid, u8 is_add); + +u8 +vnet_lisp_get_map_request_mode (void) +{ + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + return lcm->map_request_mode; +} + +static u16 +auth_data_len_by_key_id (lisp_key_type_t key_id) +{ + switch (key_id) + { + case HMAC_SHA_1_96: + return SHA1_AUTH_DATA_LEN; + case HMAC_SHA_256_128: + return SHA256_AUTH_DATA_LEN; + default: + clib_warning ("unsupported key type: %d!", key_id); + return (u16) ~ 0; + } + return (u16) ~ 0; +} + +static const EVP_MD * +get_encrypt_fcn (lisp_key_type_t key_id) +{ + switch (key_id) + { + case HMAC_SHA_1_96: + return EVP_sha1 (); + case HMAC_SHA_256_128: + return EVP_sha256 (); + default: + clib_warning ("unsupported encryption key type: %d!", key_id); + break; + } + return 0; +} + +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; +} + +/** + * convert from a LISP address to a FIB prefix + */ +void +ip_address_to_fib_prefix (const ip_address_t * addr, fib_prefix_t * prefix) +{ + if (addr->version == IP4) + { + prefix->fp_len = 32; + prefix->fp_proto = FIB_PROTOCOL_IP4; + memset (&prefix->fp_addr.pad, 0, sizeof (prefix->fp_addr.pad)); + memcpy (&prefix->fp_addr.ip4, &addr->ip, sizeof (prefix->fp_addr.ip4)); + } + else + { + prefix->fp_len = 128; + prefix->fp_proto = FIB_PROTOCOL_IP6; + memcpy (&prefix->fp_addr.ip6, &addr->ip, sizeof (prefix->fp_addr.ip6)); + } +} + +/** + * convert from a LISP to a FIB prefix + */ +void +ip_prefix_to_fib_prefix (const ip_prefix_t * ip_prefix, + fib_prefix_t * fib_prefix) +{ + ip_address_to_fib_prefix (&ip_prefix->addr, fib_prefix); + fib_prefix->fp_len = ip_prefix->len; +} + +/** + * 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) +{ + fib_node_index_t fei; + fib_prefix_t prefix; + + ip_address_to_fib_prefix (dst, &prefix); + + fei = fib_table_lookup (0, &prefix); + + return (fib_entry_get_resolving_interface (fei)); +} + +/** + * 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 (lcm, dst); + + 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; + + 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; + } + } + + /* enable/disable data-plane interface */ + if (is_add) + { + if (is_l2) + lisp_gpe_tenant_l2_iface_add_or_lock (vni, dp_table[0]); + else + lisp_gpe_tenant_l3_iface_add_or_lock (vni, dp_table[0]); + } + else + { + if (is_l2) + lisp_gpe_tenant_l2_iface_unlock (vni); + else + lisp_gpe_tenant_l3_iface_unlock (vni); + } + + return 0; +} + +static void +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 (&fe->reid); + gid_address_copy (&a->rmt_eid, &fe->reid); + if (fe->is_src_dst) + gid_address_copy (&a->lcl_eid, &fe->leid); + + 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; + pair.priority = rmt->priority; + vec_add1 (locator_pairs[0], pair); + found = 1; + } + } + } + else + break; + } + + hash_free (checked); + return found; +} static void -add_fwd_entry (lisp_cp_main_t* lcm, u32 src_map_index, u32 dst_map_index); +gid_address_sd_to_flat (gid_address_t * dst, gid_address_t * src, + fid_address_t * fid) +{ + ASSERT (GID_ADDR_SRC_DST == gid_address_type (src)); + + dst[0] = src[0]; + + switch (fid_addr_type (fid)) + { + case FID_ADDR_IP_PREF: + gid_address_type (dst) = GID_ADDR_IP_PREFIX; + gid_address_ippref (dst) = fid_addr_ippref (fid); + break; + case FID_ADDR_MAC: + gid_address_type (dst) = GID_ADDR_MAC; + mac_copy (gid_address_mac (dst), fid_addr_mac (fid)); + break; + default: + clib_warning ("Unsupported fid type %d!", fid_addr_type (fid)); + break; + } +} + +u8 +vnet_lisp_map_register_state_get (void) +{ + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + return lcm->map_registering; +} + +u8 +vnet_lisp_rloc_probe_state_get (void) +{ + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + return lcm->rloc_probing; +} + +static void +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, is_src_dst = 0; + + 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); + + if (lcm->lisp_pitr) + src_map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index); + else + src_map = pool_elt_at_index (lcm->mapping_pool, src_map_index); + dst_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index); + + /* insert data plane forwarding entry */ + a->is_add = 1; + + if (MR_MODE_SRC_DST == lcm->map_request_mode) + { + if (GID_ADDR_SRC_DST == gid_address_type (&dst_map->eid)) + { + gid_address_sd_to_flat (&a->rmt_eid, &dst_map->eid, + &gid_address_sd_dst (&dst_map->eid)); + gid_address_sd_to_flat (&a->lcl_eid, &dst_map->eid, + &gid_address_sd_src (&dst_map->eid)); + } + else + { + gid_address_copy (&a->rmt_eid, &dst_map->eid); + gid_address_copy (&a->lcl_eid, &src_map->eid); + } + is_src_dst = 1; + } + else + 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 (&a->rmt_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->reid, &a->rmt_eid); + gid_address_copy (&fe->leid, &src_map->eid); + fe->is_src_dst = is_src_dst; + hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index, + fe - lcm->fwd_entry_pool); +} + +/** + * Returns vector of adjacencies. + * + * The caller must free the vector returned by this function. + * + * @param vni virtual network identifier + * @return vector of adjacencies + */ +lisp_adjacency_t * +vnet_lisp_adjacencies_get_by_vni (u32 vni) +{ + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + fwd_entry_t *fwd; + lisp_adjacency_t *adjs = 0, adj; + + /* *INDENT-OFF* */ + pool_foreach(fwd, lcm->fwd_entry_pool, + ({ + if (gid_address_vni (&fwd->reid) != vni) + continue; + + gid_address_copy (&adj.reid, &fwd->reid); + gid_address_copy (&adj.leid, &fwd->leid); + vec_add1 (adjs, adj); + })); + /* *INDENT-ON* */ + + return adjs; +} + +static clib_error_t * +lisp_show_adjacencies_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + lisp_adjacency_t *adjs, *adj; + vlib_cli_output (vm, "%s %40s\n", "leid", "reid"); + unformat_input_t _line_input, *line_input = &_line_input; + u32 vni = ~0; + + /* 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, "vni %d", &vni)) + ; + else + { + vlib_cli_output (vm, "parse error: '%U'", + format_unformat_error, line_input); + return 0; + } + } + + if (~0 == vni) + { + vlib_cli_output (vm, "error: no vni specified!"); + return 0; + } + + adjs = vnet_lisp_adjacencies_get_by_vni (vni); + + vec_foreach (adj, adjs) + { + vlib_cli_output (vm, "%U %40U\n", format_gid_address, &adj->leid, + format_gid_address, &adj->reid); + } + vec_free (adjs); + + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_show_adjacencies_command) = { + .path = "show lisp adjacencies", + .short_help = "show lisp adjacencies", + .function = lisp_show_adjacencies_command_fn, +}; +/* *INDENT-ON* */ + +static lisp_msmr_t * +get_map_server (ip_address_t * a) +{ + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + lisp_msmr_t *m; + + vec_foreach (m, lcm->map_servers) + { + if (!ip_address_cmp (&m->address, a)) + { + return m; + } + } + return 0; +} + +static lisp_msmr_t * +get_map_resolver (ip_address_t * a) +{ + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + lisp_msmr_t *m; + + vec_foreach (m, lcm->map_resolvers) + { + if (!ip_address_cmp (&m->address, a)) + { + return m; + } + } + return 0; +} + +int +vnet_lisp_add_del_map_server (ip_address_t * addr, u8 is_add) +{ + u32 i; + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + lisp_msmr_t _ms, *ms = &_ms; + + if (vnet_lisp_enable_disable_status () == 0) + { + clib_warning ("LISP is disabled!"); + return VNET_API_ERROR_LISP_DISABLED; + } + + if (is_add) + { + if (get_map_server (addr)) + { + clib_warning ("map-server %U already exists!", format_ip_address, + addr); + return -1; + } + + memset (ms, 0, sizeof (*ms)); + ip_address_copy (&ms->address, addr); + vec_add1 (lcm->map_servers, ms[0]); + } + else + { + for (i = 0; i < vec_len (lcm->map_servers); i++) + { + ms = vec_elt_at_index (lcm->map_servers, i); + if (!ip_address_cmp (&ms->address, addr)) + { + vec_del1 (lcm->map_servers, i); + break; + } + } + } + + return 0; +} + +static clib_error_t * +lisp_add_del_map_server_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + int rv = 0; + u8 is_add = 1, ip_set = 0; + ip_address_t ip; + unformat_input_t _line_input, *line_input = &_line_input; + + /* 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, "add")) + is_add = 1; + else if (unformat (line_input, "del")) + is_add = 0; + else if (unformat (line_input, "%U", unformat_ip_address, &ip)) + ip_set = 1; + else + { + vlib_cli_output (vm, "parse error: '%U'", + format_unformat_error, line_input); + return 0; + } + } + + if (!ip_set) + { + vlib_cli_output (vm, "map-server ip address not set!"); + return 0; + } + + rv = vnet_lisp_add_del_map_server (&ip, is_add); + if (!rv) + vlib_cli_output (vm, "failed to %s map-server!", + is_add ? "add" : "delete"); + + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_add_del_map_server_command) = { + .path = "lisp map-server", + .short_help = "lisp map-server add|del ", + .function = lisp_add_del_map_server_command_fn, +}; +/* *INDENT-ON* */ + +/** + * Add/remove mapping to/from map-cache. Overwriting not allowed. + */ +int +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->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->eid)) + { + clib_warning ("eid %U found in the eid-table", format_gid_address, + &a->eid); + return VNET_API_ERROR_VALUE_EXIST; + } + + pool_get (lcm->mapping_pool, m); + 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; + m->is_static = a->is_static; + m->key = vec_dup (a->key); + m->key_id = a->key_id; + + map_index = m - lcm->mapping_pool; + 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)) + { + clib_warning ("Locator set with index %d doesn't exist", + a->locator_set_index); + return VNET_API_ERROR_INVALID_VALUE; + } + + /* add eid to list of eids supported by locator-set */ + vec_validate (lcm->locator_set_to_eids, a->locator_set_index); + eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids, + a->locator_set_index); + vec_add1 (eid_indexes[0], map_index); + + if (a->local) + { + /* mark as local */ + vec_add1 (lcm->local_mappings_indexes, map_index); + } + map_index_result[0] = map_index; + } + else + { + if (mi == GID_LOOKUP_MISS) + { + clib_warning ("eid %U not found in the eid-table", + format_gid_address, &a->eid); + return VNET_API_ERROR_INVALID_VALUE; + } + + /* clear locator-set to eids binding */ + eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids, + a->locator_set_index); + for (i = 0; i < vec_len (eid_indexes[0]); i++) + { + map_indexp = vec_elt_at_index (eid_indexes[0], i); + if (map_indexp[0] == mi) + break; + } + vec_del1 (eid_indexes[0], i); + + /* remove local mark if needed */ + m = pool_elt_at_index (lcm->mapping_pool, mi); + if (m->local) + { + u32 k, *lm_indexp; + for (k = 0; k < vec_len (lcm->local_mappings_indexes); k++) + { + lm_indexp = vec_elt_at_index (lcm->local_mappings_indexes, k); + if (lm_indexp[0] == mi) + break; + } + vec_del1 (lcm->local_mappings_indexes, k); + } + + /* remove mapping from dictionary */ + 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; +} + +/** + * 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 *dp_table = 0; + u32 vni; + u8 type; + + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + + if (vnet_lisp_enable_disable_status () == 0) + { + clib_warning ("LISP is disabled!"); + return VNET_API_ERROR_LISP_DISABLED; + } + + 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 (!dp_table) + { + clib_warning ("vni %d not associated to a %s!", vni, + GID_ADDR_IP_PREFIX == type ? "vrf" : "bd"); + return VNET_API_ERROR_INVALID_VALUE; + } + + /* store/remove mapping from map-cache */ + return vnet_lisp_map_cache_add_del (a, map_index_result); +} + +static clib_error_t * +lisp_add_del_local_eid_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 (); + unformat_input_t _line_input, *line_input = &_line_input; + u8 is_add = 1; + gid_address_t eid; + gid_address_t *eids = 0; + clib_error_t *error = 0; + u8 *locator_set_name = 0; + u32 locator_set_index = 0, map_index = 0; + uword *p; + vnet_lisp_add_del_mapping_args_t _a, *a = &_a; + int rv = 0; + u32 vni = 0; + u8 *key = 0; + u32 key_id = 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; + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "add")) + 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, "secret-key %_%v%_", &key)) + ; + else if (unformat (line_input, "key-id %U", unformat_hmac_key_id, + &key_id)) + ; + else if (unformat (line_input, "locator-set %_%v%_", &locator_set_name)) + { + p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name); + if (!p) + { + error = clib_error_return (0, "locator-set %s doesn't exist", + locator_set_name); + goto done; + } + locator_set_index = p[0]; + } + else + { + error = unformat_parse_error (line_input); + goto done; + } + } + /* 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; + } + + if (key && (0 == key_id)) + { + vlib_cli_output (vm, "invalid key_id!"); + return 0; + } + + gid_address_copy (&a->eid, &eid); + a->is_add = is_add; + a->locator_set_index = locator_set_index; + a->local = 1; + a->key = key; + a->key_id = key_id; + + rv = vnet_lisp_add_del_local_mapping (a, &map_index); + if (0 != rv) + { + 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->eid); + vec_free (a->key); + return error; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_add_del_local_eid_command) = { + .path = "lisp eid-table", + .short_help = "lisp eid-table add/del [vni ] eid " + "locator-set [key key-id sha1|sha256 ]", + .function = lisp_add_del_local_eid_command_fn, +}; +/* *INDENT-ON* */ + +int +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 *dp_idp, *vnip, **dp_table_by_vni, **vni_by_dp_table; + + if (vnet_lisp_enable_disable_status () == 0) + { + clib_warning ("LISP is disabled!"); + return -1; + } + + 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; + } + + dp_idp = hash_get (dp_table_by_vni[0], vni); + vnip = hash_get (vni_by_dp_table[0], dp_id); + + if (is_add) + { + if (dp_idp || vnip) + { + clib_warning ("vni %d or vrf %d already used in vrf/vni " + "mapping!", vni, dp_id); + return -1; + } + 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 (!dp_idp || !vnip) + { + clib_warning ("vni %d or vrf %d not used in any vrf/vni! " + "mapping!", vni, dp_id); + return -1; + } + 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 * +lisp_eid_table_map_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + 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. */ + 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, "vni %d", &vni)) + ; + 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, dp_id, is_l2, is_add); + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_eid_table_map_command) = { + .path = "lisp eid-table map", + .short_help = "lisp eid-table map [del] vni vrf | bd ", + .function = lisp_eid_table_map_command_fn, +}; +/* *INDENT-ON* */ + +/* 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; +} + +typedef struct +{ + u8 is_negative; + void *lcm; + gid_address_t *eids_to_be_deleted; +} remove_mapping_args_t; + +/** + * Callback invoked when a sub-prefix is found + */ +static void +remove_mapping_if_needed (u32 mi, void *arg) +{ + u8 delete = 0; + remove_mapping_args_t *a = arg; + lisp_cp_main_t *lcm = a->lcm; + mapping_t *m; + locator_set_t *ls; + + m = pool_elt_at_index (lcm->mapping_pool, mi); + if (!m) + return; + + ls = pool_elt_at_index (lcm->locator_set_pool, m->locator_set_index); + + if (a->is_negative) + { + if (0 != vec_len (ls->locator_indices)) + delete = 1; + } + else + { + if (0 == vec_len (ls->locator_indices)) + delete = 1; + } + + if (delete) + vec_add1 (a->eids_to_be_deleted, m->eid); +} + +/** + * This function searches map cache and looks for IP prefixes that are subset + * of the provided one. If such prefix is found depending on 'is_negative' + * it does follows: + * + * 1) if is_negative is true and found prefix points to positive mapping, + * then the mapping is removed + * 2) if is_negative is false and found prefix points to negative mapping, + * then the mapping is removed + */ +static void +remove_overlapping_sub_prefixes (lisp_cp_main_t * lcm, gid_address_t * eid, + u8 is_negative) +{ + gid_address_t *e; + remove_mapping_args_t a; + memset (&a, 0, sizeof (a)); + + /* do this only in src/dst mode ... */ + if (MR_MODE_SRC_DST != lcm->map_request_mode) + return; + + /* ... and only for IP prefix */ + if (GID_ADDR_SRC_DST != gid_address_type (eid) + || (FID_ADDR_IP_PREF != gid_address_sd_dst_type (eid))) + return; + + a.is_negative = is_negative; + a.lcm = lcm; + + gid_dict_foreach_subprefix (&lcm->mapping_index_by_gid, eid, + remove_mapping_if_needed, &a); + + vec_foreach (e, a.eids_to_be_deleted) + { + lisp_add_del_adjacency (lcm, 0, e, 0 /* is_add */ ); + vnet_lisp_add_del_mapping (e, 0, 0, 0, 0, 0 /* is add */ , 0, 0); + } + + vec_free (a.eids_to_be_deleted); +} + +static void +mapping_delete_timer (lisp_cp_main_t * lcm, u32 mi) +{ + timing_wheel_delete (&lcm->wheel, mi); +} + +/** + * Adds/removes/updates mapping. Does not program forwarding. + * + * @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 res_map_index the map-index that was created/updated/removed. It is + * set to ~0 if no action is taken. + * @param is_static used for distinguishing between statically learned + remote mappings and mappings obtained from MR + * @return return code + */ +int +vnet_lisp_add_del_mapping (gid_address_t * eid, locator_t * rlocs, u8 action, + u8 authoritative, u32 ttl, u8 is_add, u8 is_static, + u32 * res_map_index) +{ + 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; + mapping_t *old_map; + + if (vnet_lisp_enable_disable_status () == 0) + { + clib_warning ("LISP is disabled!"); + return VNET_API_ERROR_LISP_DISABLED; + } + + if (res_map_index) + res_map_index[0] = ~0; + + memset (m_args, 0, sizeof (m_args[0])); + memset (ls_args, 0, sizeof (ls_args[0])); + + ls_args->locators = rlocs; + + mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, eid); + old_map = ((u32) ~ 0 != mi) ? pool_elt_at_index (lcm->mapping_pool, mi) : 0; -static void -del_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index); + if (is_add) + { + /* 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) + { + if (!is_static && (old_map->is_static || old_map->local)) + { + /* do not overwrite local or static remote mappings */ + clib_warning ("mapping %U rejected due to collision with local " + "or static remote mapping!", format_gid_address, + eid); + return 0; + } + + locator_set_t *old_ls; + + /* update mapping attributes */ + old_map->action = action; + old_map->authoritative = authoritative; + old_map->ttl = ttl; + + 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; + } + } + /* new mapping */ + else + { + remove_overlapping_sub_prefixes (lcm, eid, 0 == ls_args->locators); + + ls_args->is_add = 1; + ls_args->index = ~0; + + vnet_lisp_add_del_locator_set (ls_args, &ls_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; + m_args->is_static = is_static; + m_args->ttl = ttl; + vnet_lisp_map_cache_add_del (m_args, &dst_map_index); + + if (res_map_index) + res_map_index[0] = dst_map_index; + } + } + else + { + if (old_map == 0 || gid_address_cmp (&old_map->eid, eid) != 0) + { + clib_warning ("cannot delete mapping for eid %U", + format_gid_address, eid); + return -1; + } + + m_args->is_add = 0; + gid_address_copy (&m_args->eid, eid); + m_args->locator_set_index = old_map->locator_set_index; + + /* delete mapping associated from map-cache */ + vnet_lisp_map_cache_add_del (m_args, 0); + + 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); + + /* delete timer associated to the mapping if any */ + if (old_map->timer_set) + mapping_delete_timer (lcm, mi); + + /* return old mapping index */ + if (res_map_index) + res_map_index[0] = mi; + } -static u8 -compare_locators (lisp_cp_main_t *lcm, u32 * old_ls_indexes, - locator_t * new_locators); + /* success */ + return 0; +} -/* Stores mapping in map-cache. It does NOT program data plane forwarding for - * remote/learned mappings. */ int -vnet_lisp_add_del_mapping (vnet_lisp_add_del_mapping_args_t * a, - u32 * map_index_result) +vnet_lisp_clear_all_remote_adjacencies (void) { - lisp_cp_main_t * lcm = vnet_lisp_cp_get_main(); - u32 mi, * map_indexp, map_index, i; - mapping_t * m; - u32 ** eid_indexes; + int rv = 0; + u32 mi, *map_indices = 0, *map_indexp; + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + vnet_lisp_add_del_mapping_args_t _dm_args, *dm_args = &_dm_args; + vnet_lisp_add_del_locator_set_args_t _ls, *ls = &_ls; + + /* *INDENT-OFF* */ + pool_foreach_index (mi, lcm->mapping_pool, + ({ + vec_add1 (map_indices, mi); + })); + /* *INDENT-ON* */ - mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->deid); - if (a->is_add) - { - /* TODO check if overwriting and take appropriate actions */ - if (mi != GID_LOOKUP_MISS) - { - clib_warning("eid %U found in the eid-table", format_ip_address, - &a->deid); - return VNET_API_ERROR_VALUE_EXIST; - } - - pool_get(lcm->mapping_pool, m); - m->eid = a->deid; - m->locator_set_index = a->locator_set_index; - m->ttl = a->ttl; - m->local = a->local; + vec_foreach (map_indexp, map_indices) + { + mapping_t *map = pool_elt_at_index (lcm->mapping_pool, map_indexp[0]); + if (!map->local) + { + dp_del_fwd_entry (lcm, 0, map_indexp[0]); + + dm_args->is_add = 0; + 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_map_cache_add_del (dm_args, 0); + + ls->is_add = 0; + ls->local = 0; + ls->index = map->locator_set_index; + /* delete locator set */ + rv = vnet_lisp_add_del_locator_set (ls, 0); + if (rv != 0) + goto cleanup; + } + } - map_index = m - lcm->mapping_pool; - gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->deid, map_index, - 1); +cleanup: + if (map_indices) + vec_free (map_indices); + return rv; +} - if (pool_is_free_index(lcm->locator_set_pool, a->locator_set_index)) - { - clib_warning("Locator set with index %d doesn't exist", - a->locator_set_index); - return VNET_API_ERROR_INVALID_VALUE; - } +/** + * Adds adjacency or removes forwarding entry associated to remote mapping. + * Note that adjacencies are not stored, they only result in forwarding entries + * being created. + */ +static 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; - /* add eid to list of eids supported by locator-set */ - vec_validate (lcm->locator_set_to_eids, a->locator_set_index); - eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids, - a->locator_set_index); - vec_add1(eid_indexes[0], map_index); + if (vnet_lisp_enable_disable_status () == 0) + { + clib_warning ("LISP is disabled!"); + return VNET_API_ERROR_LISP_DISABLED; + } - if (a->local) - { - /* mark as local */ - vec_add1(lcm->local_mappings_indexes, map_index); - } - map_index_result[0] = map_index; + remote_mi = gid_dictionary_sd_lookup (&lcm->mapping_index_by_gid, + remote_eid, local_eid); + if (GID_LOOKUP_MISS == remote_mi) + { + clib_warning ("Remote eid %U not found. Cannot add adjacency!", + format_gid_address, remote_eid); + + return -1; } - else + + if (is_add) { - if (mi == GID_LOOKUP_MISS) - { - clib_warning("eid %U not found in the eid-table", format_ip_address, - &a->deid); - return VNET_API_ERROR_INVALID_VALUE; - } + /* TODO 1) check if src/dst 2) once we have src/dst working, use it in + * delete*/ - /* clear locator-set to eids binding */ - eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids, - a->locator_set_index); - for (i = 0; i < vec_len(eid_indexes[0]); i++) - { - map_indexp = vec_elt_at_index(eid_indexes[0], i); - if (map_indexp[0] == mi) - break; - } - vec_del1(eid_indexes[0], i); + /* 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); - /* remove local mark if needed */ - m = pool_elt_at_index(lcm->mapping_pool, mi); - if (m->local) - { - u32 k, * lm_indexp; - for (k = 0; k < vec_len(lcm->local_mappings_indexes); k++) - { - lm_indexp = vec_elt_at_index(lcm->local_mappings_indexes, k); - if (lm_indexp[0] == mi) - break; - } - 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); - pool_put_index (lcm->mapping_pool, mi); + 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; } -/* Stores mapping in map-cache and programs data plane for local mappings. */ int -vnet_lisp_add_del_local_mapping (vnet_lisp_add_del_mapping_args_t * a, - u32 * map_index_result) +vnet_lisp_add_del_adjacency (vnet_lisp_add_del_adjacency_args_t * a) { - uword * table_id, * refc; - u32 rv, vni; - vnet_lisp_gpe_add_del_iface_args_t _ai, *ai = &_ai; - lisp_cp_main_t * lcm = vnet_lisp_cp_get_main (); + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + return lisp_add_del_adjacency (lcm, &a->leid, &a->reid, a->is_add); +} - vni = gid_address_vni(&a->deid); +/** + * 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, *curr_rloc = 0; + gid_address_t eid; + u8 eid_set = 0; + u32 vni, action = ~0, p, w; + int rv; - /* store/remove mapping from map-cache */ - rv = vnet_lisp_add_del_mapping (a, map_index_result); - if (rv) - return rv; + /* Get a line of input. */ + if (!unformat_user (input, unformat_line_input, line_input)) + return 0; - table_id = hash_get(lcm->table_id_by_vni, vni); + memset (&eid, 0, sizeof (eid)); + memset (&rloc, 0, sizeof (rloc)); - if (!table_id) + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { - clib_warning ("vni %d not associated to a vrf!", vni); - return VNET_API_ERROR_INVALID_VALUE; + 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))) + { + /* since rloc is stored in ip prefix we need to set prefix length */ + ip_prefix_t *pref = &gid_address_ippref (&rloc.address); + + u8 version = gid_address_ip_version (&rloc.address); + ip_prefix_len (pref) = ip_address_max_len (version); + + 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; + } } - refc = hash_get(lcm->dp_if_refcount_by_vni, vni); + if (!eid_set) + { + clib_warning ("missing eid!"); + goto done; + } - /* enable/disable data-plane interface */ - if (a->is_add) + if (!del_all) { - /* 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]++; - } + if (is_add && (~0 == action) && 0 == vec_len (rlocs)) + { + clib_warning ("no action set for negative map-reply!"); + goto done; + } } else { - /* since this is a remove for an existing eid, the iface should exist */ - ASSERT(refc != 0); - refc[0]--; + vnet_lisp_clear_all_remote_adjacencies (); + goto done; + } + + /* TODO build src/dst with seid */ - /* 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); - } + /* 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; + } } - return rv; + /* 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, + 1 /* is_static */ , 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 " + "eid [action ] rloc p w " + "[rloc ... ]",.function = + lisp_add_del_remote_mapping_command_fn,}; + +/** + * Handler for add/del adjacency CLI. + */ static clib_error_t * -lisp_add_del_local_eid_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) { - lisp_cp_main_t * lcm = vnet_lisp_cp_get_main(); - unformat_input_t _line_input, * line_input = &_line_input; + 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; - 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; - u32 locator_set_index = 0, map_index = 0; - uword * p; - vnet_lisp_add_del_mapping_args_t _a, * a = &_a; - - gid_address_type (&eid) = GID_ADDR_IP_PREFIX; + ip_prefix_t *reid_ippref, *leid_ippref; + gid_address_t leid, reid; + u8 *dmac = gid_address_mac (&reid); + u8 *smac = gid_address_mac (&leid); + u8 reid_set = 0, leid_set = 0; + u32 vni; + int rv; /* Get a line of input. */ - if (! unformat_user (input, unformat_line_input, line_input)) + if (!unformat_user (input, unformat_line_input, line_input)) return 0; + memset (&reid, 0, sizeof (reid)); + memset (&leid, 0, sizeof (leid)); + + leid_ippref = &gid_address_ippref (&leid); + reid_ippref = &gid_address_ippref (&reid); + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { - if (unformat (line_input, "add")) - is_add = 1; - else if (unformat (line_input, "del")) - is_add = 0; - 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); - if (!p) - { - error = clib_error_return(0, "locator-set %s doesn't exist", - locator_set_name); - goto done; - } - locator_set_index = p[0]; - } + if (unformat (line_input, "del")) + is_add = 0; + else if (unformat (line_input, "add")) + ; + else if (unformat (line_input, "reid %U", + unformat_ip_prefix, reid_ippref)) + { + gid_address_type (&reid) = GID_ADDR_IP_PREFIX; + reid_set = 1; + } + else if (unformat (line_input, "reid %U", unformat_mac_address, dmac)) + { + gid_address_type (&reid) = GID_ADDR_MAC; + reid_set = 1; + } + else if (unformat (line_input, "vni %u", &vni)) + { + gid_address_vni (&leid) = vni; + gid_address_vni (&reid) = vni; + } + else if (unformat (line_input, "leid %U", + unformat_ip_prefix, leid_ippref)) + { + gid_address_type (&leid) = GID_ADDR_IP_PREFIX; + leid_set = 1; + } + else if (unformat (line_input, "leid %U", unformat_mac_address, smac)) + { + gid_address_type (&leid) = GID_ADDR_MAC; + leid_set = 1; + } else - { - error = unformat_parse_error(line_input); - goto done; - } + { + clib_warning ("parse error"); + goto done; + } } - /* XXX treat batch configuration */ - a->deid = eid; + if (!reid_set || !leid_set) + { + clib_warning ("missing remote or local eid!"); + goto done; + } + + if ((gid_address_type (&leid) != gid_address_type (&reid)) + || (gid_address_type (&reid) == GID_ADDR_IP_PREFIX + && ip_prefix_version (reid_ippref) + != ip_prefix_version (leid_ippref))) + { + clib_warning ("remote and local EIDs are of different types!"); + return error; + } + + memset (a, 0, sizeof (a[0])); + gid_address_copy (&a->leid, &leid); + gid_address_copy (&a->reid, &reid); + a->is_add = is_add; - a->locator_set_index = locator_set_index; - a->local = 1; + rv = vnet_lisp_add_del_adjacency (a); - vnet_lisp_add_del_local_mapping (a, &map_index); - done: - vec_free(eids); + if (rv) + clib_warning ("failed to %s adjacency!", is_add ? "add" : "delete"); + +done: + unformat_free (line_input); return error; } -VLIB_CLI_COMMAND (lisp_add_del_local_eid_command) = { - .path = "lisp eid-table", - .short_help = "lisp eid-table add/del eid locator-set ", - .function = lisp_add_del_local_eid_command_fn, +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_add_del_adjacency_command) = { + .path = "lisp adjacency", + .short_help = "lisp adjacency add|del vni reid " + "leid ", + .function = lisp_add_del_adjacency_command_fn, }; +/* *INDENT-ON* */ + +int +vnet_lisp_set_map_request_mode (u8 mode) +{ + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + + if (vnet_lisp_enable_disable_status () == 0) + { + clib_warning ("LISP is disabled!"); + return VNET_API_ERROR_LISP_DISABLED; + } + + if (mode >= _MR_MODE_MAX) + { + clib_warning ("Invalid LISP map request mode %d!", mode); + return VNET_API_ERROR_INVALID_ARGUMENT; + } + + lcm->map_request_mode = mode; + return 0; +} + +static clib_error_t * +lisp_map_request_mode_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + unformat_input_t _i, *i = &_i; + map_request_mode_t mr_mode = _MR_MODE_MAX; + + /* Get a line of input. */ + if (!unformat_user (input, unformat_line_input, i)) + return 0; + + while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT) + { + if (unformat (i, "dst-only")) + mr_mode = MR_MODE_DST_ONLY; + else if (unformat (i, "src-dst")) + mr_mode = MR_MODE_SRC_DST; + else + { + clib_warning ("parse error '%U'", format_unformat_error, i); + goto done; + } + } + + if (_MR_MODE_MAX == mr_mode) + { + clib_warning ("No LISP map request mode entered!"); + return 0; + } + + vnet_lisp_set_map_request_mode (mr_mode); +done: + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_map_request_mode_command) = { + .path = "lisp map-request mode", + .short_help = "lisp map-request mode dst-only|src-dst", + .function = lisp_map_request_mode_command_fn, +}; +/* *INDENT-ON* */ + +static u8 * +format_lisp_map_request_mode (u8 * s, va_list * args) +{ + u32 mode = va_arg (*args, u32); + + switch (mode) + { + case 0: + return format (0, "dst-only"); + case 1: + return format (0, "src-dst"); + } + return 0; +} + +static clib_error_t * +lisp_show_map_request_mode_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + vlib_cli_output (vm, "map-request mode: %U", format_lisp_map_request_mode, + vnet_lisp_get_map_request_mode ()); + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_show_map_request_mode_command) = { + .path = "show lisp map-request mode", + .short_help = "show lisp map-request mode", + .function = lisp_show_map_request_mode_command_fn, +}; +/* *INDENT-ON* */ + +static clib_error_t * +lisp_show_map_resolvers_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + lisp_msmr_t *mr; + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + + vec_foreach (mr, lcm->map_resolvers) + { + vlib_cli_output (vm, "%U", format_ip_address, &mr->address); + } + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_show_map_resolvers_command) = { + .path = "show lisp map-resolvers", + .short_help = "show lisp map-resolvers", + .function = lisp_show_map_resolvers_command_fn, +}; +/* *INDENT-ON* */ -/** - * Adds/removes/updates static remote mapping. - * - * This function also modifies forwarding entries if needed. - * - * @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 - * @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) -{ - 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; - 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; - - memset (sm_args, 0, sizeof (sm_args[0])); - memset (dm_args, 0, sizeof (dm_args[0])); - memset (ls, 0, sizeof (ls[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); - - mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, deid); - /* new mapping */ - if ((u32)~0 == mi) - { - if ((u32)~0 == src_map_index) - { - clib_warning ("seid %U not found!", format_gid_address, seid); - goto done; - } - - if (!is_add) - { - clib_warning ("deid %U marked for removal but not " - "found!", format_gid_address, deid); - goto done; - } - - ls->is_add = 1; - ls->index = ~0; - 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; - vnet_lisp_add_del_mapping (dm_args, &dst_map_index); - - /* add fwd tunnel */ - add_fwd_entry (lcm, src_map_index, dst_map_index); +vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add) +{ + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + u32 locator_set_index = ~0; + mapping_t *m; + uword *p; + + if (vnet_lisp_enable_disable_status () == 0) + { + clib_warning ("LISP is disabled!"); + return VNET_API_ERROR_LISP_DISABLED; + } + + p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name); + if (!p) + { + clib_warning ("locator-set %v doesn't exist", locator_set_name); + return -1; + } + locator_set_index = p[0]; + + if (is_add) + { + pool_get (lcm->mapping_pool, m); + m->locator_set_index = locator_set_index; + m->local = 1; + lcm->pitr_map_index = m - lcm->mapping_pool; + + /* enable pitr mode */ + lcm->lisp_pitr = 1; + } + else + { + /* remove pitr mapping */ + pool_put_index (lcm->mapping_pool, lcm->pitr_map_index); + + /* disable pitr mode */ + lcm->lisp_pitr = 0; + } + return 0; +} + +static clib_error_t * +lisp_pitr_set_locator_set_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + u8 locator_name_set = 0; + u8 *locator_set_name = 0; + u8 is_add = 1; + unformat_input_t _line_input, *line_input = &_line_input; + clib_error_t *error = 0; + int rv = 0; + + /* 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, "ls %_%v%_", &locator_set_name)) + locator_name_set = 1; + else if (unformat (line_input, "disable")) + is_add = 0; + else + return clib_error_return (0, "parse error"); + } + + if (!locator_name_set) + { + clib_warning ("No locator set specified!"); + goto done; + } + rv = vnet_lisp_pitr_set_locator_set (locator_set_name, is_add); + if (0 != rv) + { + error = clib_error_return (0, "failed to %s pitr!", + is_add ? "add" : "delete"); + } + +done: + if (locator_set_name) + vec_free (locator_set_name); + return error; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_pitr_set_locator_set_command) = { + .path = "lisp pitr", + .short_help = "lisp pitr [disable] ls ", + .function = lisp_pitr_set_locator_set_command_fn, +}; +/* *INDENT-ON* */ + +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 { - /* delete mapping */ - if (!is_add) - { - /* 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); - } - /* update existing locator set */ + 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 - { - 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); - - /* update mapping attributes */ - old_map->action = action; - - 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); - } - } + { + tmp_str = format (0, "N/A"); + } + } + vec_add1 (tmp_str, 0); + + vlib_cli_output (vm, "%=20s%=16s", "enable", tmp_str); + + vec_free (tmp_str); + + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_show_pitr_command) = { + .path = "show lisp pitr", + .short_help = "Show pitr", + .function = lisp_show_pitr_command_fn, +}; +/* *INDENT-ON* */ + +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 *); + 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; + + u8 *type = ls->local ? format (0, "local(%s)", ls->name) + : format (0, "remote"); + + if (vec_len (ls->locator_indices) == 0) + { + s = format (s, "%-35U%-30s%-20u%-u", format_gid_address, gid, + type, ttl, aut); + } + else + { + vec_foreach (loc_index, ls->locator_indices) + { + locator_t *l = pool_elt_at_index (lcm->locator_pool, loc_index[0]); + if (l->local) + loc = format (0, "%U", format_vnet_sw_if_index_name, vnm, + l->sw_if_index); + else + loc = format (0, "%U", format_ip_address, + &gid_address_ip (&l->address)); + + if (first_line) + { + s = format (s, "%-35U%-20s%-30v%-20u%-u\n", format_gid_address, + gid, type, loc, ttl, aut); + first_line = 0; + } + else + s = format (s, "%55s%v\n", "", loc); + } } - /* success */ - rc = 0; -done: - vec_free (ls->locators); - return rc; + return s; } -/** - * 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) +lisp_show_eid_table_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; - ip_address_t rloc, * rlocs = 0; - ip_prefix_t * deid_ippref, * seid_ippref; - gid_address_t seid, deid; - u8 deid_set = 0, seid_set = 0; - u32 vni, action = ~0; + 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; + + memset (&eid, 0, sizeof (eid)); /* Get a line of input. */ - if (! unformat_user (input, unformat_line_input, line_input)) + if (!unformat_user (input, unformat_line_input, line_input)) return 0; - memset (&deid, 0, sizeof (deid)); - memset (&seid, 0, sizeof (seid)); - - 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")) - is_add = 0; - if (unformat (line_input, "add")) - ; - else if (unformat (line_input, "deid %U", - unformat_ip_prefix, deid_ippref)) - { - deid_set = 1; - } - else if (unformat (line_input, "vni %u", &vni)) - { - gid_address_set_vni (&seid, vni); - gid_address_set_vni (&deid, vni); - } - else if (unformat (line_input, "seid %U", - unformat_ip_prefix, seid_ippref)) - seid_set = 1; - else if (unformat (line_input, "rloc %U", unformat_ip_address, &rloc)) - vec_add1 (rlocs, rloc); - else if (unformat (line_input, "action %d", &action)) - ; + 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 - { - clib_warning ("parse error"); - goto done; - } + return clib_error_return (0, "parse error: '%U'", + format_unformat_error, line_input); } - if (is_add && (!deid_set || !seid_set)) - { - clib_warning ("missing paramete(s)!"); - goto done; - } - - if (!is_add && !deid_set) - { - clib_warning ("missing deid!"); - goto done; - } + vlib_cli_output (vm, "%-35s%-20s%-30s%-20s%-s", + "EID", "type", "locators", "ttl", "autoritative"); - if (is_add - && (ip_prefix_version (deid_ippref) - != ip_prefix_version (seid_ippref))) + if (print_all) { - clib_warning ("source and destination EIDs are not" - " in the same IP family!"); - goto done; + /* *INDENT-OFF* */ + 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); + })); + /* *INDENT-ON* */ } - - if (is_add && (~0 == action) - && 0 == vec_len (rlocs)) + else { - clib_warning ("no action set for negative map-reply!"); - goto done; + 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); } - int rv = vnet_lisp_add_del_remote_mapping (&deid, &seid, rlocs, - action, is_add); - if (rv) - clib_warning ("failed to %s remote mapping!", - 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 vni deid " - "seid rloc [rloc ... ]", - .function = lisp_add_del_remote_mapping_command_fn, -}; - -static clib_error_t * -lisp_show_local_eid_table_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 * mapit; - - vlib_cli_output (vm, "%=20s%=16s", "EID", "Locator"); - pool_foreach (mapit, lcm->mapping_pool, - ({ - u8 * msg = 0; - locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool, - mapit->locator_set_index); - vlib_cli_output (vm, "%-16U%16v", format_gid_address, &mapit->eid, - ls->name); - vec_free (msg); - })); - return 0; } -VLIB_CLI_COMMAND (lisp_cp_show_local_eid_table_command) = { +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_cp_show_eid_table_command) = { .path = "show lisp eid-table", - .short_help = "Shows local EID table", - .function = lisp_show_local_eid_table_command_fn, + .short_help = "Shows EID table", + .function = lisp_show_eid_table_command_fn, }; +/* *INDENT-ON* */ /* cleans locator to locator-set data and removes locators not part of * any locator-set */ static void clean_locator_to_locator_set (lisp_cp_main_t * lcm, u32 lsi) { - u32 i, j, *loc_indexp, *ls_indexp, **ls_indexes; - locator_set_t * ls = pool_elt_at_index(lcm->locator_set_pool, lsi); - for (i = 0; i < vec_len(ls->locator_indices); i++) + u32 i, j, *loc_indexp, *ls_indexp, **ls_indexes, *to_be_deleted = 0; + locator_set_t *ls = pool_elt_at_index (lcm->locator_set_pool, lsi); + for (i = 0; i < vec_len (ls->locator_indices); i++) { - loc_indexp = vec_elt_at_index(ls->locator_indices, i); - ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets, - loc_indexp[0]); - for (j = 0; j < vec_len(ls_indexes[0]); j++) - { - ls_indexp = vec_elt_at_index(ls_indexes[0], j); - if (ls_indexp[0] == lsi) - break; - } - - /* delete index for removed locator-set*/ - vec_del1(ls_indexes[0], j); + loc_indexp = vec_elt_at_index (ls->locator_indices, i); + ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets, + loc_indexp[0]); + for (j = 0; j < vec_len (ls_indexes[0]); j++) + { + ls_indexp = vec_elt_at_index (ls_indexes[0], j); + if (ls_indexp[0] == lsi) + break; + } + + /* delete index for removed locator-set */ + vec_del1 (ls_indexes[0], j); /* delete locator if it's part of no locator-set */ if (vec_len (ls_indexes[0]) == 0) - pool_put_index(lcm->locator_pool, loc_indexp[0]); + { + pool_put_index (lcm->locator_pool, loc_indexp[0]); + vec_add1 (to_be_deleted, i); + } } -} -int -vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a, - u32 * ls_result) -{ - lisp_cp_main_t * lcm = vnet_lisp_cp_get_main(); - locator_set_t * ls; - locator_t * loc, * itloc; - uword _p = (u32)~0, * p = &_p; - u32 loc_index, ls_index, ** ls_indexes; - u32 **eid_indexes; - if (a->is_add) + if (to_be_deleted) { - /* check if overwrite */ - if (a->local) - p = hash_get_mem(lcm->locator_set_index_by_name, a->name); - else - *p = a->index; - - /* overwrite */ - if (p && p[0] != (u32)~0) - { - ls = pool_elt_at_index(lcm->locator_set_pool, p[0]); - if (!ls) - { - clib_warning("locator-set %d to be overwritten doesn't exist!", - p[0]); - return -1; - } - - /* clean locator to locator-set vectors and remove locators if - * they're not part of another locator-set */ - clean_locator_to_locator_set (lcm, p[0]); - - /* remove locator indices from locator set */ - vec_free(ls->locator_indices); - - ls_index = p[0]; - - if (ls_result) - ls_result[0] = p[0]; - } - /* new locator-set */ - else - { - pool_get(lcm->locator_set_pool, ls); - ls_index = ls - lcm->locator_set_pool; - - if (a->local) - { - ls->name = vec_dup(a->name); - - if (!lcm->locator_set_index_by_name) - lcm->locator_set_index_by_name = hash_create_vec( - /* size */0, sizeof(ls->name[0]), sizeof(uword)); - hash_set_mem(lcm->locator_set_index_by_name, ls->name, ls_index); - - /* mark as local locator-set */ - vec_add1(lcm->local_locator_set_indexes, ls_index); - } - ls->local = a->local; - if (ls_result) - ls_result[0] = ls_index; - } + for (i = 0; i < vec_len (to_be_deleted); i++) + { + loc_indexp = vec_elt_at_index (to_be_deleted, i); + vec_del1 (ls->locator_indices, loc_indexp[0]); + } + vec_free (to_be_deleted); + } +} - /* allocate locators */ - vec_foreach (itloc, a->locators) - { - pool_get(lcm->locator_pool, loc); - loc[0] = itloc[0]; - loc_index = loc - lcm->locator_pool; +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 (); - vec_add1(ls->locator_indices, loc_index); + ASSERT (a != NULL); + ASSERT (p != NULL); - vec_validate (lcm->locator_to_locator_sets, loc_index); - ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets, - loc_index); - vec_add1(ls_indexes[0], ls_index); - } + /* find locator-set */ + if (a->local) + { + p = hash_get_mem (lcm->locator_set_index_by_name, a->name); } else { - /* find locator-set */ - if (a->local) - { - p = hash_get_mem(lcm->locator_set_index_by_name, a->name); - if (!p) - { - clib_warning("locator-set %v doesn't exists", a->name); - return -1; - } - } - else - *p = a->index; + *p = a->index; + } - ls = pool_elt_at_index(lcm->locator_set_pool, p[0]); - if (!ls) - { - clib_warning("locator-set with index %d doesn't exists", p[0]); - return -1; - } -// /* XXX what happens when a mapping is configured to use the loc-set ? */ -// if (vec_len (vec_elt_at_index(lcm->locator_set_to_eids, p[0])) != 0) -// { -// clib_warning ("Can't delete a locator that supports a mapping!"); -// return -1; -// } - - if (vec_len(lcm->locator_set_to_eids) != 0) - { - eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids, p[0]); - if (vec_len(eid_indexes[0]) != 0) - { - clib_warning ("Can't delete a locator that supports a mapping!"); - return -1; - } - } + return p; +} - /* clean locator to locator-sets data */ - clean_locator_to_locator_set (lcm, p[0]); +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; - if (ls->local) - { - u32 it, lsi; + ASSERT (ls != NULL); + ASSERT (loc != NULL); + + vec_foreach (locit, ls->locator_indices) + { + itloc = pool_elt_at_index (lcm->locator_pool, locit[0]); + 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; + } + } - vec_foreach_index(it, lcm->local_locator_set_indexes) - { - lsi = vec_elt(lcm->local_locator_set_indexes, it); - if (lsi == p[0]) - { - vec_del1(lcm->local_locator_set_indexes, it); - break; - } - } - hash_unset_mem(lcm->locator_set_index_by_name, ls->name); - vec_free(ls->name); - } - pool_put(lcm->locator_set_pool, ls); - } return 0; } -static inline -uword *vnet_lisp_get_locator(vnet_lisp_add_del_locator_set_args_t * a, - uword *p) +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(); + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + u32 **ls_indexes = NULL; - ASSERT(a != NULL); - ASSERT(p != NULL); - - /* find locator-set */ - if (a->local) - { - p = hash_get_mem(lcm->locator_set_index_by_name, a->name); - } - else - { - *p = a->index; - } + ASSERT (ls != NULL); + ASSERT (locit != NULL); - return p; + ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets, locit[0]); + pool_put_index (lcm->locator_pool, locit[0]); + vec_del1 (ls->locator_indices, loc_id); + vec_del1 (ls_indexes[0], ls_index); } int -vnet_lisp_add_del_locator_set_name (vnet_lisp_add_del_locator_set_args_t * a, - u32 * ls_result) +vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t * a, + locator_set_t * ls, u32 * ls_result) { - lisp_cp_main_t * lcm = vnet_lisp_cp_get_main(); - locator_set_t * ls; - uword _p = (u32)~0, * p = &_p; - u32 ls_index = ~0; - u32 **eid_indexes = NULL; + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + locator_t *loc = NULL, *itloc = NULL; + uword _p = (u32) ~ 0, *p = &_p; + u32 loc_index = ~0, ls_index = ~0, *locit = NULL, **ls_indexes = NULL; + u32 loc_id = ~0; + int ret = 0; - ASSERT(a != NULL); - ASSERT(ls_result != NULL); + ASSERT (a != NULL); - p = vnet_lisp_get_locator(a, p); + if (vnet_lisp_enable_disable_status () == 0) + { + clib_warning ("LISP is disabled!"); + return VNET_API_ERROR_LISP_DISABLED; + } - if (a->is_add) + p = get_locator_set_index (a, p); + if (!p) { - /* overwrite */ - if (p && p[0] != (u32)~0) - { - ls = pool_elt_at_index(lcm->locator_set_pool, p[0]); - if (!ls) - { - clib_warning("locator-set %d to be overwritten doesn't exist!", - p[0]); - return VNET_API_ERROR_UNSPECIFIED; - } - - /* clean locator to locator-set vectors and remove locators if - * they're not part of another locator-set */ - clean_locator_to_locator_set (lcm, p[0]); - - /* remove locator indices from locator set */ - vec_free(ls->locator_indices); - - ls_index = p[0]; - - if (ls_result) - ls_result[0] = p[0]; - } - /* new locator-set */ - else - { - pool_get(lcm->locator_set_pool, ls); - ls_index = ls - lcm->locator_set_pool; - - if (a->local) - { - ls->name = vec_dup(a->name); - - if (!lcm->locator_set_index_by_name) - lcm->locator_set_index_by_name = hash_create_vec( - /* size */0, sizeof(ls->name[0]), sizeof(uword)); - hash_set_mem(lcm->locator_set_index_by_name, ls->name, ls_index); - - /* mark as local locator-set */ - vec_add1(lcm->local_locator_set_indexes, ls_index); - } - ls->local = a->local; - ls->locator_indices = NULL; - if (ls_result) - ls_result[0] = ls_index; - } + clib_warning ("locator-set %v doesn't exist", a->name); + return VNET_API_ERROR_INVALID_ARGUMENT; } - else + + if (ls == 0) { - if (!p) - { - clib_warning("locator-set %v doesn't exists", a->name); - return VNET_API_ERROR_INVALID_ARGUMENT; - } + ls = pool_elt_at_index (lcm->locator_set_pool, p[0]); + if (!ls) + { + clib_warning ("locator-set %d to be overwritten doesn't exist!", + p[0]); + return VNET_API_ERROR_INVALID_ARGUMENT; + } + } - ls = pool_elt_at_index(lcm->locator_set_pool, p[0]); - if (!ls) - { - clib_warning("locator-set with index %d doesn't exists", p[0]); - return VNET_API_ERROR_INVALID_ARGUMENT; - } + if (a->is_add) + { + if (ls_result) + ls_result[0] = p[0]; - if (vec_len(lcm->locator_set_to_eids) != 0) + /* allocate locators */ + vec_foreach (itloc, a->locators) { - eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids, p[0]); - if (vec_len(eid_indexes[0]) != 0) - { - clib_warning ("Can't delete a locator that supports a mapping!"); - return -1; - } + ret = is_locator_in_locator_set (lcm, ls, itloc); + if (0 != ret) + { + return ret; + } + + pool_get (lcm->locator_pool, loc); + loc[0] = itloc[0]; + loc_index = loc - lcm->locator_pool; + + vec_add1 (ls->locator_indices, loc_index); + + vec_validate (lcm->locator_to_locator_sets, loc_index); + ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets, + loc_index); + vec_add1 (ls_indexes[0], p[0]); } + } + else + { + ls_index = p[0]; - /* clean locator to locator-sets data */ - clean_locator_to_locator_set (lcm, p[0]); - - if (ls->local) - { - u32 it, lsi; - - vec_foreach_index(it, lcm->local_locator_set_indexes) - { - lsi = vec_elt(lcm->local_locator_set_indexes, it); - if (lsi == p[0]) - { - vec_del1(lcm->local_locator_set_indexes, it); - break; - } - } - hash_unset_mem(lcm->locator_set_index_by_name, ls->name); - vec_free(ls->name); - } - pool_put(lcm->locator_set_pool, ls); + itloc = a->locators; + loc_id = 0; + vec_foreach (locit, ls->locator_indices) + { + loc = pool_elt_at_index (lcm->locator_pool, locit[0]); + + if (loc->local && loc->sw_if_index == itloc->sw_if_index) + { + remove_locator_from_locator_set (ls, locit, ls_index, loc_id); + } + if (0 == loc->local && + !gid_address_cmp (&loc->address, &itloc->address)) + { + remove_locator_from_locator_set (ls, locit, ls_index, loc_id); + } + + loc_id++; + } } + return 0; } int -vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t *a, - u32 *ls_result) +vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a, + u32 * ls_result) { - lisp_cp_main_t * lcm = vnet_lisp_cp_get_main(); - locator_set_t *ls = NULL; - locator_t *loc = NULL, *itloc = NULL; - uword _p = (u32)~0, * p = &_p; - u32 loc_index = ~0, ls_index = ~0, *locit = NULL, **ls_indexes = NULL; - u32 i = ~0; - - ASSERT(a != NULL); - ASSERT(ls_result != NULL); - - p = vnet_lisp_get_locator(a, p); - if (!p) { - clib_warning("locator-set %v doesn't exists", a->name); - return VNET_API_ERROR_INVALID_ARGUMENT; - } + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + locator_set_t *ls; + uword _p = (u32) ~ 0, *p = &_p; + u32 ls_index; + u32 **eid_indexes; + int ret = 0; - ls_index = p[0]; + if (vnet_lisp_enable_disable_status () == 0) + { + clib_warning ("LISP is disabled!"); + return VNET_API_ERROR_LISP_DISABLED; + } if (a->is_add) { - ls = pool_elt_at_index(lcm->locator_set_pool, p[0]); - if (!ls) - { - clib_warning("locator-set %d to be overwritten doesn't exist!", - p[0]); - return VNET_API_ERROR_INVALID_ARGUMENT; - } - - if (ls_result) - ls_result[0] = p[0]; - - /* allocate locators */ - itloc = a->locators; - pool_get(lcm->locator_pool, loc); - loc[0] = itloc[0]; - loc_index = loc - lcm->locator_pool; + p = get_locator_set_index (a, p); - vec_add1(ls->locator_indices, loc_index); - - vec_validate (lcm->locator_to_locator_sets, loc_index); - ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets, - loc_index); - vec_add1(ls_indexes[0], ls_index); + /* overwrite */ + if (p && p[0] != (u32) ~ 0) + { + ls = pool_elt_at_index (lcm->locator_set_pool, p[0]); + if (!ls) + { + clib_warning ("locator-set %d to be overwritten doesn't exist!", + p[0]); + return -1; + } + + /* clean locator to locator-set vectors and remove locators if + * they're not part of another locator-set */ + clean_locator_to_locator_set (lcm, p[0]); + + /* remove locator indices from locator set */ + vec_free (ls->locator_indices); + + ls_index = p[0]; + + if (ls_result) + ls_result[0] = p[0]; + } + /* new locator-set */ + else + { + pool_get (lcm->locator_set_pool, ls); + memset (ls, 0, sizeof (*ls)); + ls_index = ls - lcm->locator_set_pool; + + if (a->local) + { + ls->name = vec_dup (a->name); + + if (!lcm->locator_set_index_by_name) + lcm->locator_set_index_by_name = hash_create_vec ( + /* size */ + 0, + sizeof + (ls->name + [0]), + sizeof + (uword)); + hash_set_mem (lcm->locator_set_index_by_name, ls->name, + ls_index); + + /* mark as local locator-set */ + vec_add1 (lcm->local_locator_set_indexes, ls_index); + } + ls->local = a->local; + if (ls_result) + ls_result[0] = ls_index; + } + + ret = vnet_lisp_add_del_locator (a, ls, NULL); + if (0 != ret) + { + return ret; + } } else { - ls = pool_elt_at_index(lcm->locator_set_pool, p[0]); + p = get_locator_set_index (a, p); + if (!p) + { + clib_warning ("locator-set %v doesn't exists", a->name); + return -1; + } + + ls = pool_elt_at_index (lcm->locator_set_pool, p[0]); if (!ls) - { - clib_warning("locator-set with index %d doesn't exists", p[0]); - return VNET_API_ERROR_INVALID_ARGUMENT; - } + { + clib_warning ("locator-set with index %d doesn't exists", p[0]); + 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]); + if (vec_len (eid_indexes[0]) != 0) + { + clib_warning + ("Can't delete a locator that supports a mapping!"); + return -1; + } + } + + /* clean locator to locator-sets data */ + clean_locator_to_locator_set (lcm, p[0]); if (ls->local) - { - itloc = a->locators; - i = 0; - vec_foreach (locit, ls->locator_indices) - { - loc = pool_elt_at_index(lcm->locator_pool, locit[0]); - if (loc->local && loc->sw_if_index == itloc->sw_if_index) - { - ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets, - locit[0]); - pool_put_index(lcm->locator_pool, locit[0]); - vec_del1(ls->locator_indices, i); - vec_del1(ls_indexes[0], ls_index); - } - i++; - } - } + { + u32 it, lsi; + + vec_foreach_index (it, lcm->local_locator_set_indexes) + { + lsi = vec_elt (lcm->local_locator_set_indexes, it); + if (lsi == p[0]) + { + vec_del1 (lcm->local_locator_set_indexes, it); + break; + } + } + hash_unset_mem (lcm->locator_set_index_by_name, ls->name); + } + vec_free (ls->name); + vec_free (ls->locator_indices); + pool_put (lcm->locator_set_pool, ls); } return 0; } +int +vnet_lisp_rloc_probe_enable_disable (u8 is_enable) +{ + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + + lcm->rloc_probing = is_enable; + return 0; +} + +int +vnet_lisp_map_register_enable_disable (u8 is_enable) +{ + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + + lcm->map_registering = is_enable; + return 0; +} + 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; - 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; + 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) { return clib_error_return (0, "failed to %s data-plane!", - a->is_en ? "enable" : "disable"); - } - - if (is_enabled) - { - /* 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]++; - } - } + a->is_en ? "enable" : "disable"); + } + + if (is_enable) + { + /* enable all l2 and l3 ifaces */ + + /* *INDENT-OFF* */ + hash_foreach(vni, dp_table, lcm->table_id_by_vni, ({ + dp_add_del_iface(lcm, vni, 0, 1); + })); + hash_foreach(vni, dp_table, lcm->bd_id_by_vni, ({ + dp_add_del_iface(lcm, vni, /* is_l2 */ 1, 1); + })); + /* *INDENT-ON* */ } else { - /* clear refcount table */ - hash_free (lcm->dp_if_refcount_by_vni); + /* clear interface table */ 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; + unformat_input_t _line_input, *line_input = &_line_input; u8 is_enabled = 0; u8 is_set = 0; /* Get a line of input. */ - if (! unformat_user (input, unformat_line_input, line_input)) + if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "enable")) - { - is_set = 1; - is_enabled = 1; - } + { + is_set = 1; + is_enabled = 1; + } else if (unformat (line_input, "disable")) - is_set = 1; + is_set = 1; else - { - return clib_error_return (0, "parse error: '%U'", - format_unformat_error, line_input); - } + { + return clib_error_return (0, "parse error: '%U'", + format_unformat_error, line_input); + } } if (!is_set) - return clib_error_return (0, "state not set"); + return clib_error_return (0, "state not set"); - return vnet_lisp_enable_disable (is_enabled); + vnet_lisp_enable_disable (is_enabled); + return 0; } +/* *INDENT-OFF* */ VLIB_CLI_COMMAND (lisp_cp_enable_disable_command) = { .path = "lisp", .short_help = "lisp [enable|disable]", .function = lisp_enable_disable_command_fn, }; +/* *INDENT-ON* */ + +static clib_error_t * +lisp_map_register_enable_disable_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + unformat_input_t _line_input, *line_input = &_line_input; + u8 is_enabled = 0; + u8 is_set = 0; + + /* Get a line of input. */ + if (!unformat_user (input, unformat_line_input, line_input)) + return 0; + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "enable")) + { + is_set = 1; + is_enabled = 1; + } + else if (unformat (line_input, "disable")) + is_set = 1; + else + { + vlib_cli_output (vm, "parse error: '%U'", format_unformat_error, + line_input); + return 0; + } + } + + if (!is_set) + { + vlib_cli_output (vm, "state not set!"); + return 0; + } + + vnet_lisp_map_register_enable_disable (is_enabled); + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_map_register_enable_disable_command) = { + .path = "lisp map-register", + .short_help = "lisp map-register [enable|disable]", + .function = lisp_map_register_enable_disable_command_fn, +}; +/* *INDENT-ON* */ + +static clib_error_t * +lisp_rloc_probe_enable_disable_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + unformat_input_t _line_input, *line_input = &_line_input; + u8 is_enabled = 0; + u8 is_set = 0; + + /* Get a line of input. */ + if (!unformat_user (input, unformat_line_input, line_input)) + return 0; + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "enable")) + { + is_set = 1; + is_enabled = 1; + } + else if (unformat (line_input, "disable")) + is_set = 1; + else + { + vlib_cli_output (vm, "parse error: '%U'", format_unformat_error, + line_input); + return 0; + } + } + + if (!is_set) + { + vlib_cli_output (vm, "state not set!"); + return 0; + } + + vnet_lisp_rloc_probe_enable_disable (is_enabled); + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_rloc_probe_enable_disable_command) = { + .path = "lisp rloc-probe", + .short_help = "lisp rloc-probe [enable|disable]", + .function = lisp_rloc_probe_enable_disable_command_fn, +}; +/* *INDENT-ON* */ u8 vnet_lisp_enable_disable_status (void) { - lisp_cp_main_t * lcm = vnet_lisp_cp_get_main (); + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); return lcm->is_enabled; } static u8 * format_lisp_status (u8 * s, va_list * args) { - lisp_cp_main_t * lcm = vnet_lisp_cp_get_main (); + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); return format (s, "%s", lcm->is_enabled ? "enabled" : "disabled"); } static clib_error_t * lisp_show_status_command_fn (vlib_main_t * vm, unformat_input_t * input, - vlib_cli_command_t * cmd) + vlib_cli_command_t * cmd) { - u8 * msg = 0; + u8 *msg = 0; msg = format (msg, "feature: %U\ngpe: %U\n", - format_lisp_status, format_vnet_lisp_gpe_status); + format_lisp_status, format_vnet_lisp_gpe_status); vlib_cli_output (vm, "%v", msg); vec_free (msg); return 0; } +/* *INDENT-OFF* */ VLIB_CLI_COMMAND (lisp_show_status_command) = { .path = "show lisp status", .short_help = "show lisp status", .function = lisp_show_status_command_fn, }; +/* *INDENT-ON* */ + +static clib_error_t * +lisp_show_eid_table_map_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + hash_pair_t *p; + unformat_input_t _line_input, *line_input = &_line_input; + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + uword *vni_table = 0; + u8 is_l2 = 0; + + /* 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, "l2")) + { + vni_table = lcm->bd_id_by_vni; + is_l2 = 1; + } + else if (unformat (line_input, "l3")) + { + vni_table = lcm->table_id_by_vni; + is_l2 = 0; + } + else + return clib_error_return (0, "parse error: '%U'", + format_unformat_error, line_input); + } + + if (!vni_table) + { + vlib_cli_output (vm, "Error: expected l2|l3 param!\n"); + return 0; + } + + vlib_cli_output (vm, "%=10s%=10s", "VNI", is_l2 ? "BD" : "VRF"); + + /* *INDENT-OFF* */ + hash_foreach_pair (p, vni_table, + ({ + vlib_cli_output (vm, "%=10d%=10d", p->key, p->value[0]); + })); + /* *INDENT-ON* */ + + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_show_eid_table_map_command) = { + .path = "show lisp eid-table map", + .short_help = "show lisp eid-table l2|l3", + .function = lisp_show_eid_table_map_command_fn, +}; +/* *INDENT-ON* */ + static clib_error_t * -lisp_add_del_locator_set_command_fn (vlib_main_t * vm, unformat_input_t * input, - vlib_cli_command_t * cmd) +lisp_add_del_locator_set_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) { - lisp_gpe_main_t * lgm = &lisp_gpe_main; - vnet_main_t * vnm = lgm->vnet_main; - unformat_input_t _line_input, * line_input = &_line_input; + lisp_gpe_main_t *lgm = &lisp_gpe_main; + vnet_main_t *vnm = lgm->vnet_main; + unformat_input_t _line_input, *line_input = &_line_input; u8 is_add = 1; - clib_error_t * error = 0; - u8 * locator_set_name = 0; - locator_t locator, * locators = 0; - vnet_lisp_add_del_locator_set_args_t _a, * a = &_a; + clib_error_t *error = 0; + u8 *locator_set_name = 0; + locator_t locator, *locators = 0; + vnet_lisp_add_del_locator_set_args_t _a, *a = &_a; u32 ls_index = 0; + int rv = 0; - memset(&locator, 0, sizeof(locator)); - memset(a, 0, sizeof(a[0])); + memset (&locator, 0, sizeof (locator)); + memset (a, 0, sizeof (a[0])); /* Get a line of input. */ - if (! unformat_user (input, unformat_line_input, line_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, "add %_%v%_", &locator_set_name)) - is_add = 1; + is_add = 1; else if (unformat (line_input, "del %_%v%_", &locator_set_name)) - is_add = 0; + is_add = 0; else if (unformat (line_input, "iface %U p %d w %d", - unformat_vnet_sw_interface, vnm, &locator.sw_if_index, - &locator.priority, &locator.weight)) - { - locator.local = 1; - vec_add1(locators, locator); - } + unformat_vnet_sw_interface, vnm, + &locator.sw_if_index, &locator.priority, + &locator.weight)) + { + locator.local = 1; + vec_add1 (locators, locator); + } else - { - error = unformat_parse_error(line_input); - goto done; - } + { + error = unformat_parse_error (line_input); + goto done; + } } a->name = locator_set_name; @@ -1086,346 +2728,721 @@ lisp_add_del_locator_set_command_fn (vlib_main_t * vm, unformat_input_t * input, a->is_add = is_add; a->local = 1; - vnet_lisp_add_del_locator_set(a, &ls_index); + rv = vnet_lisp_add_del_locator_set (a, &ls_index); + if (0 != rv) + { + error = clib_error_return (0, "failed to %s locator-set!", + is_add ? "add" : "delete"); + } - done: - vec_free(locators); - vec_free(locator_set_name); +done: + vec_free (locators); + if (locator_set_name) + vec_free (locator_set_name); return error; } +/* *INDENT-OFF* */ VLIB_CLI_COMMAND (lisp_cp_add_del_locator_set_command) = { .path = "lisp locator-set", - .short_help = "lisp locator-set add/del iface " - "p w ", + .short_help = "lisp locator-set add/del [iface " + "p w ]", .function = lisp_add_del_locator_set_command_fn, }; +/* *INDENT-ON* */ + +static clib_error_t * +lisp_add_del_locator_in_set_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + lisp_gpe_main_t *lgm = &lisp_gpe_main; + vnet_main_t *vnm = lgm->vnet_main; + unformat_input_t _line_input, *line_input = &_line_input; + u8 is_add = 1; + clib_error_t *error = 0; + u8 *locator_set_name = 0; + u8 locator_set_name_set = 0; + locator_t locator, *locators = 0; + vnet_lisp_add_del_locator_set_args_t _a, *a = &_a; + u32 ls_index = 0; + + memset (&locator, 0, sizeof (locator)); + memset (a, 0, sizeof (a[0])); + + /* 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, "add")) + is_add = 1; + else if (unformat (line_input, "del")) + is_add = 0; + else if (unformat (line_input, "locator-set %_%v%_", &locator_set_name)) + locator_set_name_set = 1; + else if (unformat (line_input, "iface %U p %d w %d", + unformat_vnet_sw_interface, vnm, + &locator.sw_if_index, &locator.priority, + &locator.weight)) + { + locator.local = 1; + vec_add1 (locators, locator); + } + else + { + error = unformat_parse_error (line_input); + goto done; + } + } + + if (!locator_set_name_set) + { + error = clib_error_return (0, "locator_set name not set!"); + goto done; + } + + a->name = locator_set_name; + a->locators = locators; + a->is_add = is_add; + a->local = 1; + + vnet_lisp_add_del_locator (a, 0, &ls_index); + +done: + vec_free (locators); + vec_free (locator_set_name); + return error; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_cp_add_del_locator_in_set_command) = { + .path = "lisp locator", + .short_help = "lisp locator add/del locator-set iface " + "p w ", + .function = lisp_add_del_locator_in_set_command_fn, +}; +/* *INDENT-ON* */ static clib_error_t * lisp_cp_show_locator_sets_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, + vlib_cli_command_t * cmd) { - locator_set_t * lsit; - locator_t * loc; - u32 * locit; - lisp_cp_main_t * lcm = vnet_lisp_cp_get_main(); + locator_set_t *lsit; + locator_t *loc; + u32 *locit; + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + + vlib_cli_output (vm, "%s%=16s%=16s%=16s", "Locator-set", "Locator", + "Priority", "Weight"); - vlib_cli_output (vm, "%=20s%=16s%=16s%=16s", "Locator-set", "Locator", - "Priority", "Weight"); + /* *INDENT-OFF* */ pool_foreach (lsit, lcm->locator_set_pool, ({ u8 * msg = 0; - msg = format (msg, "%-16v", lsit->name); + int next_line = 0; + if (lsit->local) + { + msg = format (msg, "%v", lsit->name); + } + else + { + msg = format (msg, "<%s-%d>", "remote", lsit - lcm->locator_set_pool); + } vec_foreach (locit, lsit->locator_indices) { + if (next_line) + { + msg = format (msg, "%16s", " "); + } loc = pool_elt_at_index (lcm->locator_pool, locit[0]); if (loc->local) - msg = format (msg, "%16d%16d%16d", loc->sw_if_index, loc->priority, + msg = format (msg, "%16d%16d%16d\n", loc->sw_if_index, loc->priority, loc->weight); else - msg = format (msg, "%16U%16d%16d", format_gid_address, &loc->address, - loc->priority, loc->weight); + msg = format (msg, "%16U%16d%16d\n", format_ip_address, + &gid_address_ip(&loc->address), loc->priority, + loc->weight); + next_line = 1; } vlib_cli_output (vm, "%v", msg); vec_free (msg); })); + /* *INDENT-ON* */ return 0; } +/* *INDENT-OFF* */ VLIB_CLI_COMMAND (lisp_cp_show_locator_sets_command) = { .path = "show lisp locator-set", .short_help = "Shows locator-sets", .function = lisp_cp_show_locator_sets_command_fn, }; +/* *INDENT-ON* */ 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; + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); u32 i; + lisp_msmr_t _mr, *mr = &_mr; + + if (vnet_lisp_enable_disable_status () == 0) + { + clib_warning ("LISP is disabled!"); + return VNET_API_ERROR_LISP_DISABLED; + } if (a->is_add) { - vec_foreach(addr, lcm->map_resolvers) - { - if (!ip_address_cmp (addr, &a->address)) - { - clib_warning("map-resolver %U already exists!", format_ip_address, - &a->address); - return -1; - } - } - vec_add1(lcm->map_resolvers, a->address); + + if (get_map_resolver (&a->address)) + { + clib_warning ("map-resolver %U already exists!", format_ip_address, + &a->address); + return -1; + } + + 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)) - { - vec_delete(lcm->map_resolvers, 1, i); - break; - } - } + for (i = 0; i < vec_len (lcm->map_resolvers); i++) + { + mr = vec_elt_at_index (lcm->map_resolvers, i); + if (!ip_address_cmp (&mr->address, &a->address)) + { + if (!ip_address_cmp (&mr->address, &lcm->active_map_resolver)) + lcm->do_map_resolver_election = 1; + + vec_del1 (lcm->map_resolvers, i); + break; + } + } } return 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; + unformat_input_t _line_input, *line_input = &_line_input; + u8 is_add = 1, addr_set = 0; ip_address_t ip_addr; - clib_error_t * error = 0; - vnet_lisp_add_del_map_resolver_args_t _a, * a = &_a; + clib_error_t *error = 0; + int rv = 0; + vnet_lisp_add_del_map_resolver_args_t _a, *a = &_a; /* Get a line of input. */ - if (! unformat_user (input, unformat_line_input, line_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, "add")) - is_add = 1; + is_add = 1; else if (unformat (line_input, "del")) - is_add = 0; + 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; - } + { + 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; - vnet_lisp_add_del_map_resolver (a); + rv = vnet_lisp_add_del_map_resolver (a); + if (0 != rv) + { + error = clib_error_return (0, "failed to %s map-resolver!", + is_add ? "add" : "delete"); + } - done: +done: return error; } +/* *INDENT-OFF* */ VLIB_CLI_COMMAND (lisp_add_del_map_resolver_command) = { .path = "lisp map-resolver", .short_help = "lisp map-resolver add/del ", .function = lisp_add_del_map_resolver_command_fn, }; +/* *INDENT-ON* */ + +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; + + 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 %_%v%_", &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; + +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_add_del_map_request_command) = { + .path = "lisp map-request itr-rlocs", + .short_help = "lisp map-request itr-rlocs add/del ", + .function = lisp_add_del_mreq_itr_rlocs_command_fn, +}; +/* *INDENT-ON* */ + +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; +} + +/* *INDENT-OFF* */ +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, +}; +/* *INDENT-ON* */ /* Statistics (not really errors) */ #define foreach_lisp_cp_lookup_error \ _(DROP, "drop") \ _(MAP_REQUESTS_SENT, "map-request sent") -static char * lisp_cp_lookup_error_strings[] = { +static char *lisp_cp_lookup_error_strings[] = { #define _(sym,string) string, foreach_lisp_cp_lookup_error #undef _ }; -typedef enum +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_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; +} + +int +get_mr_and_local_iface_ip (lisp_cp_main_t * lcm, ip_address_t * mr_ip, + ip_address_t * sloc) +{ + lisp_msmr_t *mrit; + ip_address_t *a; + + if (vec_len (lcm->map_resolvers) == 0) + { + clib_warning ("No map-resolver configured"); + return 0; + } + + /* find the first mr ip we have a route to and the ip of the + * iface that has a route to it */ + vec_foreach (mrit, lcm->map_resolvers) + { + 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!"); + return 0; +} + +static gid_address_t * +build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set) +{ + void *addr; + u32 i; + locator_t *loc; + u32 *loc_indexp; + ip_interface_address_t *ia = 0; + gid_address_t gid_data, *gid = &gid_data; + gid_address_t *rlocs = 0; + ip_prefix_t *ippref = &gid_address_ippref (gid); + ip_address_t *rloc = &ip_prefix_addr (ippref); + + memset (gid, 0, sizeof (gid[0])); + gid_address_type (gid) = GID_ADDR_IP_PREFIX; + for (i = 0; i < vec_len (loc_set->locator_indices); i++) + { + loc_indexp = vec_elt_at_index (loc_set->locator_indices, i); + loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]); + + /* Add ipv4 locators first TODO sort them */ + + /* *INDENT-OFF* */ + foreach_ip_interface_address (&lcm->im4->lookup_main, ia, + loc->sw_if_index, 1 /* unnumbered */, + ({ + 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]); + })); + + /* Add ipv6 locators */ + foreach_ip_interface_address (&lcm->im6->lookup_main, ia, + loc->sw_if_index, 1 /* unnumbered */, + ({ + 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]); + })); + /* *INDENT-ON* */ + + } + return rlocs; +} + +static vlib_buffer_t * +build_map_request (lisp_cp_main_t * lcm, gid_address_t * deid, + ip_address_t * sloc, ip_address_t * rloc, + gid_address_t * itr_rlocs, u64 * nonce_res, u32 * bi_res) +{ + vlib_buffer_t *b; + u32 bi; + vlib_main_t *vm = lcm->vlib_main; + + if (vlib_buffer_alloc (vm, &bi, 1) != 1) + { + clib_warning ("Can't allocate buffer for Map-Request!"); + return 0; + } + + b = vlib_get_buffer (vm, bi); + + /* leave some space for the encap headers */ + vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN); + + /* put lisp msg */ + lisp_msg_put_mreq (lcm, b, NULL, deid, itr_rlocs, 0 /* smr invoked */ , + 1 /* rloc probe */ , nonce_res); + + /* push outer ip header */ + pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc, + rloc); + + bi_res[0] = bi; + + return b; +} + +static vlib_buffer_t * +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, + u64 * nonce_res, u32 * bi_res) +{ + 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) + { + clib_warning ("Can't allocate buffer for Map-Request!"); + return 0; + } + + b = vlib_get_buffer (vm, bi); + + /* leave some space for the encap headers */ + vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN); + + /* get rlocs */ + rlocs = build_itr_rloc_list (lcm, loc_set); + + if (MR_MODE_SRC_DST == lcm->map_request_mode + && GID_ADDR_SRC_DST != gid_address_type (deid)) + { + gid_address_t sd; + memset (&sd, 0, sizeof (sd)); + build_src_dst (&sd, seid, deid); + lisp_msg_put_mreq (lcm, b, seid, &sd, rlocs, is_smr_invoked, + 0 /* rloc probe */ , nonce_res); + } + else + { + /* put lisp msg */ + lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, is_smr_invoked, + 0 /* rloc probe */ , nonce_res); + } + + /* push ecm: udp-ip-lisp */ + lisp_msg_push_ecm (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, seid, deid); + + /* push outer ip header */ + pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc, + mr_ip); + + bi_res[0] = bi; + + vec_free (rlocs); + return b; +} + +static void +reset_pending_mr_counters (pending_map_request_t * r) { -#define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym, - foreach_lisp_cp_lookup_error -#undef _ - LISP_CP_LOOKUP_N_ERROR, -} lisp_cp_lookup_error_t; + r->time_to_expire = PENDING_MREQ_EXPIRATION_TIME; + r->retries_num = 0; +} -typedef enum +static int +elect_map_resolver (lisp_cp_main_t * lcm) { - 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; + lisp_msmr_t *mr; -typedef struct -{ - gid_address_t dst_eid; - ip4_address_t map_resolver_ip; -} lisp_cp_lookup_trace_t; + 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; +} -u8 * -format_lisp_cp_lookup_trace (u8 * s, va_list * args) +static void +free_map_register_records (mapping_t * maps) { - 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 *); + mapping_t *map; + vec_foreach (map, maps) vec_free (map->locators); - 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; + vec_free (maps); } -static u32 -ip_fib_lookup_with_table (lisp_cp_main_t * lcm, u32 fib_index, - ip_address_t * dst) +static void +add_locators (lisp_cp_main_t * lcm, mapping_t * m, u32 locator_set_index, + ip_address_t * probed_loc) { - 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 *li; + locator_t *loc, new; + ip_interface_address_t *ia = 0; + void *addr; + ip_address_t *new_ip = &gid_address_ip (&new.address); + + m->locators = 0; + locator_set_t *ls = pool_elt_at_index (lcm->locator_set_pool, + locator_set_index); + vec_foreach (li, ls->locator_indices) + { + loc = pool_elt_at_index (lcm->locator_pool, li[0]); + new = loc[0]; + if (loc->local) + { + /* *INDENT-OFF* */ + foreach_ip_interface_address (&lcm->im4->lookup_main, ia, + loc->sw_if_index, 1 /* unnumbered */, + ({ + addr = ip_interface_address_get_address (&lcm->im4->lookup_main, + ia); + ip_address_set (new_ip, addr, IP4); + })); + + /* Add ipv6 locators */ + foreach_ip_interface_address (&lcm->im6->lookup_main, ia, + loc->sw_if_index, 1 /* unnumbered */, + ({ + addr = ip_interface_address_get_address (&lcm->im6->lookup_main, + ia); + ip_address_set (new_ip, addr, IP6); + })); + /* *INDENT-ON* */ + + if (probed_loc && ip_address_cmp (probed_loc, new_ip) == 0) + new.probed = 1; + } + vec_add1 (m->locators, new); + } } -void -get_mr_and_local_iface_ip (lisp_cp_main_t *lcm, ip_address_t * mr_ip, - ip_address_t * sloc) +static mapping_t * +build_map_register_record_list (lisp_cp_main_t * lcm) { - u32 adj_index; - ip_adjacency_t * adj; - ip_interface_address_t * ia = 0; - ip_lookup_main_t * lm; - ip4_address_t * l4 = 0; - ip6_address_t * l6 = 0; - ip_address_t * mrit; - - if (vec_len(lcm->map_resolvers) == 0) - { - clib_warning("No map-resolver configured"); - return; - } - - /* find the first mr ip we have a route to and the ip of the - * iface that has a route to it */ - vec_foreach(mrit, lcm->map_resolvers) - { - lm = ip_addr_version (mrit) == IP4 ? - &lcm->im4->lookup_main : &lcm->im6->lookup_main; + mapping_t *recs = 0, rec, *m; - adj_index = ip_fib_lookup_with_table (lcm, 0, mrit); - adj = ip_get_adjacency (lm, adj_index); + /* *INDENT-OFF* */ + pool_foreach(m, lcm->mapping_pool, + { + /* for now build only local mappings */ + if (!m->local) + continue; - if (adj == 0) - continue; + rec = m[0]; + add_locators (lcm, &rec, m->locator_set_index, NULL); + vec_add1 (recs, rec); + }); + /* *INDENT-ON* */ - if (adj->lookup_next_index == IP_LOOKUP_NEXT_ARP) - { - ia = pool_elt_at_index(lm->if_address_pool, adj->if_address_index); - if (ip_addr_version(mrit) == IP4) - { - l4 = ip_interface_address_get_address (lm, ia); - } - else - { - l6 = ip_interface_address_get_address (lm, ia); - } - } - else if (adj->lookup_next_index == IP_LOOKUP_NEXT_REWRITE) - { - /* find sw_if_index in rewrite header */ - u32 sw_if_index = adj->rewrite_header.sw_if_index; - - /* find suitable address */ - if (ip_addr_version(mrit) == IP4) - { - /* find the first ip address */ - foreach_ip_interface_address (&lcm->im4->lookup_main, ia, - sw_if_index, 1 /* unnumbered */, - ({ - l4 = ip_interface_address_get_address (&lcm->im4->lookup_main, - ia); - break; - })); - } - else - { - /* find the first ip address */ - foreach_ip_interface_address (&lcm->im6->lookup_main, ia, - sw_if_index, 1 /* unnumbered */, - ({ - l6 = ip_interface_address_get_address (&lcm->im6->lookup_main, - ia); - break; - })); - } - } - - if (l4) - { - ip_addr_v4(sloc).as_u32 = l4->as_u32; - ip_addr_version(sloc) = IP4; - ip_address_copy(mr_ip, mrit); - return; - } - else if (l6) - { - clib_memcpy (&ip_addr_v6(sloc), l6, sizeof(*l6)); - ip_addr_version(sloc) = IP6; - ip_address_copy(mr_ip, mrit); - return; - } - } - - clib_warning("Can't find map-resolver and local interface ip!"); - return; + return recs; } -static gid_address_t * -build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set) +static int +update_map_register_auth_data (map_register_hdr_t * map_reg_hdr, + lisp_key_type_t key_id, u8 * key, + u16 auth_data_len, u32 msg_len) { - ip4_address_t * l4; - ip6_address_t * l6; - u32 i; - locator_t * loc; - u32 * loc_indexp; - ip_interface_address_t * ia = 0; - gid_address_t gid_data, * gid = &gid_data; - gid_address_t * rlocs = 0; - ip_prefix_t * ippref = &gid_address_ippref (gid); - ip_address_t * rloc = &ip_prefix_addr (ippref); - - gid_address_type (gid) = GID_ADDR_IP_PREFIX; - for (i = 0; i < vec_len(loc_set->locator_indices); i++) - { - loc_indexp = vec_elt_at_index(loc_set->locator_indices, i); - loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]); + MREG_KEY_ID (map_reg_hdr) = clib_host_to_net_u16 (key_id); + MREG_AUTH_DATA_LEN (map_reg_hdr) = clib_host_to_net_u16 (auth_data_len); - ip_addr_version(rloc) = IP4; - /* Add ipv4 locators first TODO sort them */ - foreach_ip_interface_address (&lcm->im4->lookup_main, ia, - loc->sw_if_index, 1 /* unnumbered */, - ({ - l4 = ip_interface_address_get_address (&lcm->im4->lookup_main, ia); - ip_addr_v4 (rloc) = l4[0]; - ip_prefix_len (ippref) = 32; - vec_add1 (rlocs, gid[0]); - })); + unsigned char *result = HMAC (get_encrypt_fcn (key_id), key, vec_len (key), + (unsigned char *) map_reg_hdr, msg_len, NULL, + NULL); + clib_memcpy (MREG_DATA (map_reg_hdr), result, auth_data_len); - ip_addr_version(rloc) = IP6; - /* Add ipv6 locators */ - foreach_ip_interface_address (&lcm->im6->lookup_main, ia, - loc->sw_if_index, 1 /* unnumbered */, - ({ - l6 = ip_interface_address_get_address (&lcm->im6->lookup_main, ia); - ip_addr_v6 (rloc) = l6[0]; - ip_prefix_len (ippref) = 128; - vec_add1 (rlocs, gid[0]); - })); - } - return rlocs; + return 0; } static vlib_buffer_t * -build_encapsulated_map_request (vlib_main_t * vm, 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, - u64 *nonce_res, u32 * bi_res) +build_map_register (lisp_cp_main_t * lcm, ip_address_t * sloc, + ip_address_t * ms_ip, u64 * nonce_res, u8 want_map_notif, + mapping_t * records, lisp_key_type_t key_id, u8 * key, + u32 * bi_res) { - vlib_buffer_t * b; - u32 bi; - gid_address_t * rlocs = 0; + void *map_reg_hdr; + vlib_buffer_t *b; + u32 bi, auth_data_len = 0, msg_len = 0; + vlib_main_t *vm = lcm->vlib_main; if (vlib_buffer_alloc (vm, &bi, 1) != 1) { - clib_warning ("Can't allocate buffer for Map-Request!"); + clib_warning ("Can't allocate buffer for Map-Register!"); return 0; } @@ -1434,120 +3451,452 @@ build_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm, /* leave some space for the encap headers */ vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN); - /* get rlocs */ - rlocs = build_itr_rloc_list (lcm, loc_set); - - /* put lisp msg */ - lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, is_smr_invoked, nonce_res); + auth_data_len = auth_data_len_by_key_id (key_id); + map_reg_hdr = lisp_msg_put_map_register (b, records, want_map_notif, + auth_data_len, nonce_res, + &msg_len); - /* push ecm: udp-ip-lisp */ - lisp_msg_push_ecm (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, seid, deid); + update_map_register_auth_data (map_reg_hdr, key_id, key, auth_data_len, + msg_len); /* push outer ip header */ pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc, - mr_ip); + ms_ip); bi_res[0] = bi; - - if (rlocs) - vec_free(rlocs); return b; } -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) +static int +get_egress_map_resolver_ip (lisp_cp_main_t * lcm, ip_address_t * ip) +{ + lisp_msmr_t *mr; + while (lcm->do_map_resolver_election + | (0 == ip_fib_get_first_egress_ip_for_dst (lcm, + &lcm->active_map_resolver, + ip))) + { + if (0 == elect_map_resolver (lcm)) + /* all map resolvers are down */ + { + /* restart MR checking by marking all of them up */ + vec_foreach (mr, lcm->map_resolvers) mr->is_down = 0; + return -1; + } + } + return 0; +} + +static int +send_rloc_probe (lisp_cp_main_t * lcm, gid_address_t * deid, + u32 local_locator_set_index, ip_address_t * sloc, + ip_address_t * rloc) { - u32 next_index, bi = 0, * to_next, map_index; - vlib_buffer_t * b; - vlib_frame_t * f; + locator_set_t *ls; + u32 bi; + 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; + u32 next_index, *to_next; + gid_address_t *itr_rlocs; - /* get locator-set for seid */ - map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid); - if (map_index == ~0) + ls = pool_elt_at_index (lcm->locator_set_pool, local_locator_set_index); + itr_rlocs = build_itr_rloc_list (lcm, ls); + + b = build_map_request (lcm, deid, sloc, rloc, itr_rlocs, &nonce, &bi); + vec_free (itr_rlocs); + if (!b) + return -1; + + 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 (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 (lcm->vlib_main, next_index, f); + + hash_set (lcm->map_register_messages_by_nonce, nonce, 0); + return 0; +} + +static int +send_rloc_probes (lisp_cp_main_t * lcm) +{ + u8 lprio = 0; + mapping_t *lm; + fwd_entry_t *e; + locator_pair_t *lp; + u32 si; + + /* *INDENT-OFF* */ + pool_foreach (e, lcm->fwd_entry_pool, + { + if (vec_len (e->locator_pairs) == 0) + continue; + + si = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &e->leid); + if (~0 == si) + { + clib_warning ("internal error: cannot find local eid %U in " + "map-cache!", format_gid_address, &e->leid); + continue; + } + lm = pool_elt_at_index (lcm->mapping_pool, si); + + /* get the best (lowest) priority */ + lprio = e->locator_pairs[0].priority; + + /* send rloc-probe for pair(s) with the best remote locator priority */ + vec_foreach (lp, e->locator_pairs) + { + if (lp->priority != lprio) + break; + + /* get first remote locator */ + send_rloc_probe (lcm, &e->reid, lm->locator_set_index, &lp->lcl_loc, + &lp->rmt_loc); + } + }); + /* *INDENT-ON* */ + + return 0; +} + +static int +send_map_register (lisp_cp_main_t * lcm, u8 want_map_notif) +{ + u32 bi; + vlib_buffer_t *b; + ip_address_t sloc; + vlib_frame_t *f; + u64 nonce = 0; + u32 next_index, *to_next; + ip_address_t *ms = 0; + mapping_t *records, *r, *g; + + // TODO: support multiple map servers and do election + if (0 == vec_len (lcm->map_servers)) + return -1; + + ms = &lcm->map_servers[0].address; + + if (0 == ip_fib_get_first_egress_ip_for_dst (lcm, ms, &sloc)) { - clib_warning("No local mapping found in eid-table for %U!", - format_gid_address, seid); - return; + clib_warning ("no eligible interface address found for %U!", + format_ip_address, &lcm->map_servers[0]); + return -1; + } + + records = build_map_register_record_list (lcm); + if (!records) + return -1; + + vec_foreach (r, records) + { + u8 *key = r->key; + u8 key_id = r->key_id; + + if (!key) + continue; /* no secret key -> map-register cannot be sent */ + + g = 0; + // TODO: group mappings that share common key + vec_add1 (g, r[0]); + b = build_map_register (lcm, &sloc, ms, &nonce, want_map_notif, g, + key_id, key, &bi); + vec_free (g); + if (!b) + continue; + + 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 (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 (lcm->vlib_main, next_index, f); + + hash_set (lcm->map_register_messages_by_nonce, nonce, 0); + } + free_map_register_records (records); + + 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) +{ + 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, *duplicate_pmr = 0; + ip_address_t sloc; + u32 ls_index; + + /* if there is already a pending request remember it */ + + /* *INDENT-OFF* */ + 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; + } + })); + /* *INDENT-ON* */ + + if (!is_resend && duplicate_pmr) + { + /* don't send the request if there is a pending map request already */ + return 0; } - map = pool_elt_at_index (lcm->mapping_pool, map_index); + /* get locator-set for seid */ + if (!lcm->lisp_pitr) + { + map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid); + if (map_index == ~0) + { + clib_warning ("No local mapping found in eid-table for %U!", + format_gid_address, seid); + return -1; + } + + map = pool_elt_at_index (lcm->mapping_pool, map_index); + + if (!map->local) + { + clib_warning + ("Mapping found for src eid %U is not marked as local!", + format_gid_address, seid); + return -1; + } + 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; + } - if (!map->local) + /* overwrite locator set if map-request itr-rlocs configured */ + if (~0 != lcm->mreq_itr_rlocs) { - clib_warning("Mapping found for src eid %U is not marked as local!", - format_gid_address, seid); - return; + ls_index = lcm->mreq_itr_rlocs; } - loc_set = pool_elt_at_index (lcm->locator_set_pool, map->locator_set_index); - /* get local iface ip to use in map-request XXX fib 0 for now*/ - get_mr_and_local_iface_ip (lcm, &mr_ip, &sloc); + loc_set = pool_elt_at_index (lcm->locator_set_pool, ls_index); + + if (get_egress_map_resolver_ip (lcm, &sloc) < 0) + { + if (duplicate_pmr) + duplicate_pmr->to_be_removed = 1; + return -1; + } /* build the encapsulated map request */ - b = build_encapsulated_map_request (vm, lcm, seid, deid, loc_set, &mr_ip, - &sloc, is_smr_invoked, &nonce, &bi); + 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) ? - ip4_lookup_node.index : ip6_lookup_node.index; + /* 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 (clib_fifo_elts (duplicate_pmr->nonces) >= PENDING_MREQ_QUEUE_LEN) + { + /* remove the oldest nonce */ + u64 CLIB_UNUSED (tmp), *nonce_del; + nonce_del = clib_fifo_head (duplicate_pmr->nonces); + hash_unset (lcm->pending_map_requests_by_nonce, nonce_del[0]); + clib_fifo_sub1 (duplicate_pmr->nonces, tmp); + } + + clib_fifo_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); + clib_fifo_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; + ip4_header_t *ip4 = hdr; + ip6_header_t *ip6; if ((ip4->ip_version_and_header_length & 0xF0) == 0x40) { - ip_addr_v4(src).as_u32 = ip4->src_address.as_u32; - ip_addr_version(src) = IP4; - ip_addr_v4(dst).as_u32 = ip4->dst_address.as_u32; - ip_addr_version(dst) = IP4; + ip_address_set (src, &ip4->src_address, IP4); + ip_address_set (dst, &ip4->dst_address, IP4); } else { ip6 = hdr; - clib_memcpy (&ip_addr_v6(src), &ip6->src_address, sizeof(ip6->src_address)); - ip_addr_version(src) = IP6; - clib_memcpy (&ip_addr_v6(dst), &ip6->dst_address, sizeof(ip6->dst_address)); - ip_addr_version(dst) = IP6; + ip_address_set (src, &ip6->src_address, IP6); + ip_address_set (dst, &ip6->dst_address, IP6); + } +} + +static u32 +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; + + table_id = fib_table_get_table_id_for_sw_if_index ((version == + IP4 ? FIB_PROTOCOL_IP4 : + FIB_PROTOCOL_IP6), + vnet_buffer + (b)->sw_if_index + [VLIB_RX]); + + vnip = hash_get (lcm->vni_by_table_id, table_id); + if (vnip) + vni = vnip[0]; + else + clib_warning ("vrf %d is not mapped to any vni!", table_id); + + 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) +lisp_cp_lookup_inline (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * from_frame, int overlay) { - u32 * from, * to_next_drop, di, si; - lisp_cp_main_t *lcm = vnet_lisp_cp_get_main(); + u32 *from, *to_next_drop, di, si; + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); u32 pkts_mapped = 0; uword n_left_from, n_left_to_next_drop; @@ -1557,77 +3906,148 @@ lisp_cp_lookup (vlib_main_t * vm, vlib_node_runtime_t * node, while (n_left_from > 0) { vlib_get_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP, - to_next_drop, n_left_to_next_drop); + to_next_drop, n_left_to_next_drop); while (n_left_from > 0 && n_left_to_next_drop > 0) - { - u32 pi0; - vlib_buffer_t * p0; - ip4_header_t * ip0; - 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; - n_left_from -= 1; - to_next_drop[0] = pi0; - 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]; - - /* 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)); - - /* if we have remote mapping for destination already in map-chache - add forwarding tunnel directly. If not send a map-request */ - di = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &dst); - if (~0 != di) - { - 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)); - gid_address_copy (&tr->dst_eid, &dst); - clib_memcpy (&tr->map_resolver_ip, - vec_elt_at_index(lcm->map_resolvers, 0), - sizeof(ip_address_t)); - } - } - - vlib_put_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP, n_left_to_next_drop); + { + u32 pi0; + vlib_buffer_t *b0; + gid_address_t src, dst; + + pi0 = from[0]; + from += 1; + n_left_from -= 1; + to_next_drop[0] = pi0; + to_next_drop += 1; + n_left_to_next_drop -= 1; + + b0 = vlib_get_buffer (vm, pi0); + b0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP]; + vnet_buffer (b0)->lisp.overlay_afi = overlay; + + /* src/dst eid pair */ + 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 */ + di = gid_dictionary_sd_lookup (&lcm->mapping_index_by_gid, &dst, + &src); + if (~0 != di) + { + 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 == LISP_SEND_MAP_REQUEST) + { + /* send map-request */ + 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) + { + dp_add_fwd_entry (lcm, si, di); + } + } + } + else + { + /* send map-request */ + queue_map_request (&src, &dst, 0 /* smr_invoked */ , + 0 /* is_resend */ ); + pkts_mapped++; + } + + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, b0, + sizeof (*tr)); + + memset (tr, 0, sizeof (*tr)); + gid_address_copy (&tr->dst_eid, &dst); + ip_address_copy (&tr->map_resolver_ip, + &lcm->active_map_resolver); + } + 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); + 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", +static uword +lisp_cp_lookup_ip4 (vlib_main_t * vm, + vlib_node_runtime_t * node, vlib_frame_t * from_frame) +{ + return (lisp_cp_lookup_inline (vm, node, from_frame, LISP_AFI_IP)); +} + +static uword +lisp_cp_lookup_ip6 (vlib_main_t * vm, + vlib_node_runtime_t * node, vlib_frame_t * from_frame) +{ + return (lisp_cp_lookup_inline (vm, node, from_frame, LISP_AFI_IP6)); +} + +static uword +lisp_cp_lookup_l2 (vlib_main_t * vm, + vlib_node_runtime_t * node, vlib_frame_t * from_frame) +{ + return (lisp_cp_lookup_inline (vm, node, from_frame, LISP_AFI_MAC)); +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (lisp_cp_lookup_ip4_node) = { + .function = lisp_cp_lookup_ip4, + .name = "lisp-cp-lookup-ip4", + .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", + }, +}; +/* *INDENT-ON* */ + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (lisp_cp_lookup_ip6_node) = { + .function = lisp_cp_lookup_ip6, + .name = "lisp-cp-lookup-ip6", + .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", + }, +}; +/* *INDENT-ON* */ + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (lisp_cp_lookup_l2_node) = { + .function = lisp_cp_lookup_l2, + .name = "lisp-cp-lookup-l2", .vector_size = sizeof (u32), .format_trace = format_lisp_cp_lookup_trace, .type = VLIB_NODE_TYPE_INTERNAL, @@ -1639,17 +4059,16 @@ VLIB_REGISTER_NODE (lisp_cp_lookup_node) = { .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", }, }; +/* *INDENT-ON* */ /* 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[] = { +static char *lisp_cp_input_error_strings[] = { #define _(sym,string) string, foreach_lisp_cp_input_error #undef _ @@ -1658,7 +4077,7 @@ static char * lisp_cp_input_error_strings[] = { typedef enum { #define _(sym,str) LISP_CP_INPUT_ERROR_##sym, - foreach_lisp_cp_input_error + foreach_lisp_cp_input_error #undef _ LISP_CP_INPUT_N_ERROR, } lisp_cp_input_error_t; @@ -1680,353 +4099,526 @@ 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 *); + 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; } -ip_interface_address_t * -ip_interface_get_first_interface_address (ip_lookup_main_t *lm, u32 sw_if_index, - u8 loop) +static void +remove_expired_mapping (lisp_cp_main_t * lcm, u32 mi) +{ + mapping_t *m; + + m = pool_elt_at_index (lcm->mapping_pool, mi); + lisp_add_del_adjacency (lcm, 0, &m->eid, 0 /* is_add */ ); + vnet_lisp_add_del_mapping (&m->eid, 0, 0, 0, ~0, 0 /* is_add */ , + 0 /* is_static */ , 0); + mapping_delete_timer (lcm, mi); +} + +static void +mapping_start_expiration_timer (lisp_cp_main_t * lcm, u32 mi, + f64 expiration_time) +{ + mapping_t *m; + u64 now = clib_cpu_time_now (); + u64 cpu_cps = lcm->vlib_main->clib_time.clocks_per_second; + u64 exp_clock_time = now + expiration_time * cpu_cps; + + m = pool_elt_at_index (lcm->mapping_pool, mi); + + m->timer_set = 1; + timing_wheel_insert (&lcm->wheel, exp_clock_time, mi); +} + +static void +map_records_arg_free (map_records_arg_t * a) { - 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); + mapping_t *m; + vec_foreach (m, a->mappings) + { + vec_free (m->locators); + gid_address_free (&m->eid); + } + + clib_mem_free (a); } void * -ip_interface_get_first_ip_addres (ip_lookup_main_t *lm, u32 sw_if_index, - u8 loop) +process_map_reply (map_records_arg_t * a) { - ip_interface_address_t * ia = ip_interface_get_first_interface_address ( - lm, sw_if_index, loop); - return ip_interface_address_get_address (lm, ia); -} + mapping_t *m; + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + u32 dst_map_index = 0; + pending_map_request_t *pmr; + u64 *noncep; + uword *pmr_index; -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)); + if (a->is_rloc_probe) + goto done; - feip = hash_get(lcm->fwd_entry_by_mapping_index, dst_map_index); - if (!feip) - return; + /* Check pending requests table and nonce */ + pmr_index = hash_get (lcm->pending_map_requests_by_nonce, a->nonce); + if (!pmr_index) + { + clib_warning ("No pending map-request entry with nonce %lu!", a->nonce); + goto done; + } + pmr = pool_elt_at_index (lcm->pending_map_requests_pool, pmr_index[0]); - fe = pool_elt_at_index(lcm->fwd_entry_pool, feip[0]); + vec_foreach (m, a->mappings) + { + /* insert/update mappings cache */ + vnet_lisp_add_del_mapping (&m->eid, m->locators, m->action, + m->authoritative, m->ttl, + 1, 0 /* is_static */ , &dst_map_index); - /* 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); + /* try to program forwarding only if mapping saved or updated */ + if ((u32) ~ 0 != dst_map_index) + { + lisp_add_del_adjacency (lcm, &pmr->src, &m->eid, 1); + if ((u32) ~ 0 != m->ttl) + mapping_start_expiration_timer (lcm, dst_map_index, m->ttl * 60); + } + } - vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index); + /* remove pending map request entry */ - /* delete entry in fwd table */ - hash_unset(lcm->fwd_entry_by_mapping_index, dst_map_index); - pool_put(lcm->fwd_entry_pool, fe); + /* *INDENT-OFF* */ + clib_fifo_foreach (noncep, pmr->nonces, ({ + hash_unset(lcm->pending_map_requests_by_nonce, noncep[0]); + })); + /* *INDENT-ON* */ + + clib_fifo_free (pmr->nonces); + pool_put (lcm->pending_map_requests_pool, pmr); + +done: + map_records_arg_free (a); + return 0; } -static void -add_fwd_entry (lisp_cp_main_t* lcm, u32 src_map_index, u32 dst_map_index) +static int +is_auth_data_valid (map_notify_hdr_t * h, u32 msg_len, + lisp_key_type_t key_id, u8 * key) { - mapping_t * src_map, * dst_map; - locator_set_t * dst_ls, * src_ls; - u32 i, minp = ~0, sw_if_index; - locator_t * dl = 0; - uword * feip = 0, * tidp; - fwd_entry_t* fe; - vnet_lisp_gpe_add_del_fwd_entry_args_t _a, * a = &_a; + u8 *auth_data = 0; + u16 auth_data_len; + int result; + + auth_data_len = auth_data_len_by_key_id (key_id); + if ((u16) ~ 0 == auth_data_len) + { + clib_warning ("invalid length for key_id %d!", key_id); + return 0; + } - memset (a, 0, sizeof(*a)); + /* save auth data */ + vec_validate (auth_data, auth_data_len - 1); + clib_memcpy (auth_data, MNOTIFY_DATA (h), auth_data_len); - /* 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); + /* clear auth data */ + memset (MNOTIFY_DATA (h), 0, auth_data_len); - src_map = pool_elt_at_index (lcm->mapping_pool, src_map_index); - dst_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index); + /* get hash of the message */ + unsigned char *code = HMAC (get_encrypt_fcn (key_id), key, vec_len (key), + (unsigned char *) h, msg_len, NULL, NULL); + + result = memcmp (code, auth_data, auth_data_len); + + vec_free (auth_data); + + return !result; +} - gid_address_copy (&a->deid, &dst_map->eid); - a->vni = gid_address_vni(&a->deid); +static void +process_map_notify (map_records_arg_t * a) +{ + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + uword *pmr_index; - tidp = hash_get(lcm->table_id_by_vni, a->vni); - if (!tidp) + pmr_index = hash_get (lcm->map_register_messages_by_nonce, a->nonce); + if (!pmr_index) { - clib_warning("vni %d not associated to a vrf!", a->vni); + clib_warning ("No pending map-register entry with nonce %lu!", + a->nonce); return; } - a->table_id = tidp[0]; - - /* XXX simple forwarding policy: first lowest (value) priority locator */ - dst_ls = pool_elt_at_index (lcm->locator_set_pool, - dst_map->locator_set_index); - for (i = 0; i < vec_len (dst_ls->locator_indices); i++) - { - u32 li = vec_elt (dst_ls->locator_indices, i); - locator_t * l = pool_elt_at_index (lcm->locator_pool, li); - if (l->priority < minp && gid_address_type(&l->address) - == GID_ADDR_IP_PREFIX) - { - minp = l->priority; - dl = l; - } - } - if (dl) - { - src_ls = pool_elt_at_index(lcm->locator_set_pool, - src_map->locator_set_index); - for (i = 0; i < vec_len(src_ls->locator_indices); i++) - { - u32 li = vec_elt (src_ls->locator_indices, i); - locator_t * sl = pool_elt_at_index (lcm->locator_pool, li); - - if (ip_addr_version(&gid_address_ip(&dl->address)) == IP4) - { - ip4_address_t * l4; - l4 = ip_interface_get_first_ip_addres (&lcm->im4->lookup_main, - sl->sw_if_index, - 1 /* unnumbered */); - ip_addr_v4(&a->slocator) = *l4; - ip_addr_version(&a->slocator) = IP4; - } - else - { - ip6_address_t * l6; - l6 = ip_interface_get_first_ip_addres (&lcm->im6->lookup_main, - sl->sw_if_index, - 1 /* unnumbered */); - ip_addr_v6(&a->slocator) = *l6; - ip_addr_version(&a->slocator) = IP6; - } - } - } - /* insert data plane forwarding entry */ - a->is_add = 1; - if (dl) - a->dlocator = gid_address_ip(&dl->address); - else + map_records_arg_free (a); + hash_unset (lcm->map_register_messages_by_nonce, a->nonce); +} + +static mapping_t * +get_mapping (lisp_cp_main_t * lcm, gid_address_t * e) +{ + u32 mi; + + mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, e); + if (~0 == mi) { - a->is_negative = 1; - a->action = dst_map->action; + clib_warning ("eid %U not found in map-cache!", unformat_gid_address, + e); + return 0; } + return pool_elt_at_index (lcm->mapping_pool, mi); +} - /* 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; +/** + * When map-notify is received it is necessary that all EIDs in the record + * list share common key. The key is then used to verify authentication + * data in map-notify message. + */ +static int +map_record_integrity_check (lisp_cp_main_t * lcm, mapping_t * maps, + u32 key_id, u8 ** key_out) +{ + u32 i, len = vec_len (maps); + mapping_t *m; - vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index); + /* get key of the first mapping */ + m = get_mapping (lcm, &maps[0].eid); + if (!m || !m->key) + return -1; - /* 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); + key_out[0] = m->key; + + for (i = 1; i < len; i++) + { + m = get_mapping (lcm, &maps[i].eid); + if (!m || !m->key) + return -1; + + if (key_id != m->key_id || vec_cmp (m->key, key_out[0])) + { + clib_warning ("keys does not match! %v, %v", key_out[0], m->key); + return -1; + } + } + return 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) +static int +parse_map_records (vlib_buffer_t * b, map_records_arg_t * a, u8 count) { - u32 i, old_li; - locator_t * old_loc, * new_loc; + locator_t *locators = 0; + u32 i, len; + gid_address_t deid; + mapping_t m; + locator_t *loc; + + /* parse record eid */ + for (i = 0; i < count; i++) + { + len = lisp_msg_parse_mapping_record (b, &deid, &locators, NULL); + if (len == ~0) + { + clib_warning ("Failed to parse mapping record!"); + vec_foreach (loc, locators) locator_free (loc); + vec_free (locators); + return -1; + } + + m.locators = locators; + gid_address_copy (&m.eid, &deid); + vec_add1 (a->mappings, m); + } - if (vec_len (old_ls_indexes) != vec_len(new_locators)) - return 1; + return 0; +} + +static map_records_arg_t * +parse_map_notify (vlib_buffer_t * b) +{ + int rc = 0; + map_notify_hdr_t *mnotif_hdr; + lisp_key_type_t key_id; + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + u8 *key = 0; + gid_address_t deid; + u16 auth_data_len = 0; + u8 record_count; + map_records_arg_t *a = clib_mem_alloc (sizeof (*a)); + + memset (a, 0, sizeof (*a)); + mnotif_hdr = vlib_buffer_get_current (b); + vlib_buffer_pull (b, sizeof (*mnotif_hdr)); + memset (&deid, 0, sizeof (deid)); + + a->nonce = MNOTIFY_NONCE (mnotif_hdr); + key_id = clib_net_to_host_u16 (MNOTIFY_KEY_ID (mnotif_hdr)); + auth_data_len = auth_data_len_by_key_id (key_id); - for (i = 0; i < vec_len(new_locators); i++) + /* advance buffer by authentication data */ + vlib_buffer_pull (b, auth_data_len); + + record_count = MNOTIFY_REC_COUNT (mnotif_hdr); + rc = parse_map_records (b, a, record_count); + if (rc != 0) { - old_li = vec_elt(old_ls_indexes, i); - old_loc = pool_elt_at_index(lcm->locator_pool, old_li); + map_records_arg_free (a); + return 0; + } - new_loc = vec_elt_at_index(new_locators, i); + rc = map_record_integrity_check (lcm, a->mappings, key_id, &key); + if (rc != 0) + { + map_records_arg_free (a); + return 0; + } - if (locator_cmp (old_loc, new_loc)) - return 1; + /* verify authentication data */ + if (!is_auth_data_valid (mnotif_hdr, vlib_buffer_get_tail (b) + - (u8 *) mnotif_hdr, key_id, key)) + { + clib_warning ("Map-notify auth data verification failed for nonce %lu!", + a->nonce); + map_records_arg_free (a); + return 0; } - return 0; + return a; } -void -process_map_reply (lisp_cp_main_t * lcm, vlib_buffer_t * b) -{ - locator_t * loc; - u32 len = 0, i, ls_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; - uword * pmr_index; - - mrep_hdr = vlib_buffer_get_current (b); +static vlib_buffer_t * +build_map_reply (lisp_cp_main_t * lcm, ip_address_t * sloc, + ip_address_t * dst, u64 nonce, u8 probe_bit, + mapping_t * records, u16 dst_port, u32 * bi_res) +{ + vlib_buffer_t *b; + u32 bi; + vlib_main_t *vm = lcm->vlib_main; - /* 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) + if (vlib_buffer_alloc (vm, &bi, 1) != 1) { - clib_warning("No pending map-request entry with nonce %lu!", nonce); - return; + clib_warning ("Can't allocate buffer for Map-Register!"); + return 0; } - pmr = pool_elt_at_index(lcm->pending_map_requests_pool, pmr_index[0]); - vlib_buffer_pull (b, sizeof(*mrep_hdr)); + b = vlib_get_buffer (vm, bi); - for (i = 0; i < MREP_REC_COUNT(mrep_hdr); i++) - { - memset (ls_arg, 0, sizeof(*ls_arg)); - memset (m_args, 0, sizeof(*m_args)); + /* leave some space for the encap headers */ + vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN); - 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); + lisp_msg_put_map_reply (b, records, nonce, probe_bit); - len = lisp_msg_parse_mapping_record (b, &m_args->deid, &ls_arg->locators, - &probed); - if (len == ~0) - { - clib_warning ("Failed to parse mapping record!"); - vec_foreach (loc, ls_arg->locators) - { - locator_free (loc); - } - vec_free(ls_arg->locators); - return; - } - - mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &m_args->deid); - - /* if mapping already exists, decide if locators (and forwarding) should - * be updated and be done */ - if (mi != ~0) - { - mapping_t * old_map; - locator_set_t * old_ls; - old_map = pool_elt_at_index(lcm->mapping_pool, mi); - - /* 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); + /* push outer ip header */ + pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, dst_port, sloc, dst); + + bi_res[0] = bi; + return b; +} + +static int +send_map_reply (lisp_cp_main_t * lcm, u32 mi, ip_address_t * dst, + u8 probe_bit, u64 nonce, u16 dst_port, + ip_address_t * probed_loc) +{ + ip_address_t src; + u32 bi; + vlib_buffer_t *b; + vlib_frame_t *f; + u32 next_index, *to_next; + mapping_t *records = 0, *m; + + m = pool_elt_at_index (lcm->mapping_pool, mi); + if (!m) + return -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); + vec_add1 (records, m[0]); + add_locators (lcm, &records[0], m->locator_set_index, probed_loc); + memset (&src, 0, sizeof (src)); - /* add forwarding tunnel */ - add_fwd_entry (lcm, pmr->src_mapping_index, dst_map_index); - } - vec_free(ls_arg->locators); + if (!ip_fib_get_first_egress_ip_for_dst (lcm, dst, &src)) + { + clib_warning ("can't find inteface address for %U", format_ip_address, + dst); + return -1; } - /* remove pending map request entry */ - hash_unset(lcm->pending_map_requests_by_nonce, nonce); - pool_put(lcm->pending_map_requests_pool, pmr); + b = build_map_reply (lcm, &src, dst, nonce, probe_bit, records, dst_port, + &bi); + if (!b) + return -1; + free_map_register_records (records); + + 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 (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 (lcm->vlib_main, next_index, f); + return 0; } void -process_map_request (vlib_main_t * vm, lisp_cp_main_t * lcm, vlib_buffer_t * b) +process_map_request (vlib_main_t * vm, lisp_cp_main_t * lcm, + vlib_buffer_t * b) { - map_request_hdr_t * mreq_hdr; + u8 *ip_hdr = 0, *udp_hdr; + ip4_header_t *ip4; + ip6_header_t *ip6; + ip_address_t *dst_loc = 0, probed_loc, src_loc; + mapping_t m; + map_request_hdr_t *mreq_hdr; gid_address_t src, dst; -// u64 nonce; + u64 nonce; u32 i, len = 0; - gid_address_t * itr_rlocs = 0, * rloc; + gid_address_t *itr_rlocs = 0; mreq_hdr = vlib_buffer_get_current (b); - vlib_buffer_pull (b, sizeof(*mreq_hdr)); -// nonce = MREQ_NONCE(mreq_hdr); + // TODO ugly workaround to find out whether LISP is carried by ip4 or 6 + // and needs to be fixed + udp_hdr = (u8 *) vlib_buffer_get_current (b) - sizeof (udp_header_t); + ip4 = (ip4_header_t *) (udp_hdr - sizeof (ip4_header_t)); + ip6 = (ip6_header_t *) (udp_hdr - sizeof (ip6_header_t)); + + if ((ip4->ip_version_and_header_length & 0xF0) == 0x40) + ip_hdr = (u8 *) ip4; + else + { + u32 flags = clib_net_to_host_u32 + (ip6->ip_version_traffic_class_and_flow_label); + if ((flags & 0xF0000000) == 0x60000000) + ip_hdr = (u8 *) ip6; + else + { + clib_warning ("internal error: cannot determine whether packet " + "is ip4 or 6!"); + return; + } + } + + vlib_buffer_pull (b, sizeof (*mreq_hdr)); + + nonce = MREQ_NONCE (mreq_hdr); - if (!MREQ_SMR(mreq_hdr)) { - clib_warning("Only SMR Map-Requests supported for now!"); + if (!MREQ_SMR (mreq_hdr) && !MREQ_RLOC_PROBE (mreq_hdr)) + { + clib_warning + ("Only SMR Map-Requests and RLOC probe supported for now!"); return; - } + } /* parse src eid */ len = lisp_msg_parse_addr (b, &src); if (len == ~0) return; - /* for now we don't do anything with the itr's rlocs */ - len = lisp_msg_parse_itr_rlocs (b, &itr_rlocs, MREQ_ITR_RLOC_COUNT(mreq_hdr) + 1); + len = lisp_msg_parse_itr_rlocs (b, &itr_rlocs, + MREQ_ITR_RLOC_COUNT (mreq_hdr) + 1); if (len == ~0) return; - /* TODO: RLOCs are currently unused, so free them for now */ - vec_foreach (rloc, itr_rlocs) + /* parse eid records and send SMR-invoked map-requests */ + for (i = 0; i < MREQ_REC_COUNT (mreq_hdr); i++) { - gid_address_free (rloc); + memset (&dst, 0, sizeof (dst)); + len = lisp_msg_parse_eid_rec (b, &dst); + if (len == ~0) + { + clib_warning ("Can't parse map-request EID-record"); + goto done; + } + + if (MREQ_SMR (mreq_hdr)) + { + /* send SMR-invoked map-requests */ + queue_map_request (&dst, &src, 1 /* invoked */ , 0 /* resend */ ); + } + else if (MREQ_RLOC_PROBE (mreq_hdr)) + { + memset (&m, 0, sizeof (m)); + u32 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &dst); + + // TODO: select best locator; for now use the first one + dst_loc = &gid_address_ip (&itr_rlocs[0]); + + /* get src/dst IP addresses */ + get_src_and_dst_ip (ip_hdr, &src_loc, &probed_loc); + + // TODO get source port from buffer + u16 src_port = LISP_CONTROL_PORT; + + send_map_reply (lcm, mi, dst_loc, 1 /* probe-bit */ , nonce, + src_port, &probed_loc); + } } - /* parse eid records and send SMR-invoked map-requests */ - for (i = 0; i < MREQ_REC_COUNT(mreq_hdr); i++) +done: + vec_free (itr_rlocs); +} + +static map_records_arg_t * +parse_map_reply (vlib_buffer_t * b) +{ + locator_t probed; + gid_address_t deid; + void *h; + u32 i, len = 0; + mapping_t m; + map_reply_hdr_t *mrep_hdr; + map_records_arg_t *a = clib_mem_alloc (sizeof (*a)); + memset (a, 0, sizeof (*a)); + locator_t *locators; + + mrep_hdr = vlib_buffer_get_current (b); + a->nonce = MREP_NONCE (mrep_hdr); + a->is_rloc_probe = MREP_RLOC_PROBE (mrep_hdr); + vlib_buffer_pull (b, sizeof (*mrep_hdr)); + + for (i = 0; i < MREP_REC_COUNT (mrep_hdr); i++) { - memset(&dst, 0, sizeof(dst)); - len = lisp_msg_parse_eid_rec (b, &dst); + memset (&m, 0, sizeof (m)); + locators = 0; + h = vlib_buffer_get_current (b); + + m.ttl = clib_net_to_host_u32 (MAP_REC_TTL (h)); + m.action = MAP_REC_ACTION (h); + m.authoritative = MAP_REC_AUTH (h); + + len = lisp_msg_parse_mapping_record (b, &deid, &locators, &probed); if (len == ~0) - { - clib_warning("Can't parse map-request EID-record"); - return; - } - /* send SMR-invoked map-requests */ - send_encapsulated_map_request (vm, lcm, &dst, &src, /* invoked */ 1); + { + clib_warning ("Failed to parse mapping record!"); + map_records_arg_free (a); + return 0; + } + + m.locators = locators; + gid_address_copy (&m.eid, &deid); + vec_add1 (a->mappings, m); } + return a; +} + +static void +queue_map_reply_for_processing (map_records_arg_t * a) +{ + vl_api_rpc_call_main_thread (process_map_reply, (u8 *) a, sizeof (a)); +} + +static void +queue_map_notify_for_processing (map_records_arg_t * a) +{ + vl_api_rpc_call_main_thread (process_map_notify, (u8 *) a, sizeof (a[0])); } static uword lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * from_frame) + vlib_frame_t * from_frame) { - u32 n_left_from, * from, * to_next_drop; + u32 n_left_from, *from, *to_next_drop; lisp_msg_type_e type; - lisp_cp_main_t * lcm = vnet_lisp_cp_get_main(); + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + map_records_arg_t *a; from = vlib_frame_vector_args (from_frame); n_left_from = from_frame->n_vectors; @@ -2037,48 +4629,57 @@ lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node, u32 n_left_to_next_drop; vlib_get_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP, - to_next_drop, n_left_to_next_drop); + to_next_drop, n_left_to_next_drop); while (n_left_from > 0 && n_left_to_next_drop > 0) - { - u32 bi0; - vlib_buffer_t * b0; - - bi0 = from[0]; - from += 1; - n_left_from -= 1; - to_next_drop[0] = bi0; - to_next_drop += 1; - n_left_to_next_drop -= 1; - - b0 = vlib_get_buffer (vm, bi0); - - type = lisp_msg_type(vlib_buffer_get_current (b0)); - switch (type) - { - case LISP_MAP_REPLY: - process_map_reply (lcm, b0); - break; - case LISP_MAP_REQUEST: - process_map_request(vm, lcm, b0); - break; - default: - clib_warning("Unsupported LISP message type %d", type); - break; - } - - b0->error = node->errors[LISP_CP_INPUT_ERROR_DROP]; - - if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED)) - { - - } - } - - vlib_put_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP, n_left_to_next_drop); + { + u32 bi0; + vlib_buffer_t *b0; + + bi0 = from[0]; + from += 1; + n_left_from -= 1; + to_next_drop[0] = bi0; + to_next_drop += 1; + n_left_to_next_drop -= 1; + + b0 = vlib_get_buffer (vm, bi0); + + type = lisp_msg_type (vlib_buffer_get_current (b0)); + switch (type) + { + case LISP_MAP_REPLY: + a = parse_map_reply (b0); + if (a) + queue_map_reply_for_processing (a); + break; + case LISP_MAP_REQUEST: + process_map_request (vm, lcm, b0); + break; + case LISP_MAP_NOTIFY: + a = parse_map_notify (b0); + if (a) + queue_map_notify_for_processing (a); + break; + default: + clib_warning ("Unsupported LISP message type %d", type); + break; + } + + b0->error = node->errors[LISP_CP_INPUT_ERROR_DROP]; + + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + + } + } + + vlib_put_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP, + n_left_to_next_drop); } return from_frame->n_vectors; } +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (lisp_cp_input_node) = { .function = lisp_cp_input, .name = "lisp-cp-input", @@ -2095,12 +4696,13 @@ VLIB_REGISTER_NODE (lisp_cp_input_node) = { [LISP_CP_INPUT_NEXT_DROP] = "error-drop", }, }; +/* *INDENT-ON* */ clib_error_t * -lisp_cp_init (vlib_main_t *vm) +lisp_cp_init (vlib_main_t * vm) { - lisp_cp_main_t * lcm = vnet_lisp_cp_get_main(); - clib_error_t * error = 0; + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + clib_error_t *error = 0; if ((error = vlib_call_init_function (vm, lisp_gpe_init))) return error; @@ -2108,19 +4710,241 @@ lisp_cp_init (vlib_main_t *vm) lcm->im4 = &ip4_main; lcm->im6 = &ip6_main; lcm->vlib_main = vm; - lcm->vnet_main = vnet_get_main(); + lcm->vnet_main = vnet_get_main (); + lcm->mreq_itr_rlocs = ~0; + lcm->lisp_pitr = 0; + memset (&lcm->active_map_resolver, 0, sizeof (lcm->active_map_resolver)); gid_dictionary_init (&lcm->mapping_index_by_gid); + lcm->do_map_resolver_election = 1; + lcm->map_request_mode = MR_MODE_DST_ONLY; /* default vrf mapped to vni 0 */ - hash_set(lcm->table_id_by_vni, 0, 0); + hash_set (lcm->table_id_by_vni, 0, 0); + hash_set (lcm->vni_by_table_id, 0, 0); udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp, - lisp_cp_input_node.index, 1 /* is_ip4 */); + lisp_cp_input_node.index, 1 /* is_ip4 */ ); udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp6, - lisp_cp_input_node.index, 0 /* is_ip4 */); + lisp_cp_input_node.index, 0 /* is_ip4 */ ); + + u64 now = clib_cpu_time_now (); + timing_wheel_init (&lcm->wheel, now, vm->clib_time.clocks_per_second); + 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 (); + + 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); + + 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 (); + lisp_msmr_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; + + /* *INDENT-OFF* */ + pool_foreach (pmr, lcm->pending_map_requests_pool, + ({ + if (pmr->to_be_removed) + { + clib_fifo_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); + } + })); + /* *INDENT-ON* */ + + 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 void +update_rloc_probing (lisp_cp_main_t * lcm, f64 dt) +{ + static f64 time_left = RLOC_PROBING_INTERVAL; + + if (!lcm->is_enabled || !lcm->rloc_probing) + return; + + time_left -= dt; + if (time_left <= 0) + { + time_left = RLOC_PROBING_INTERVAL; + send_rloc_probes (lcm); + } +} + +static void +update_map_register (lisp_cp_main_t * lcm, f64 dt) +{ + static f64 time_left = QUICK_MAP_REGISTER_INTERVAL; + static u64 mreg_sent_counter = 0; + + if (!lcm->is_enabled || !lcm->map_registering) + return; + + time_left -= dt; + if (time_left <= 0) + { + if (mreg_sent_counter >= QUICK_MAP_REGISTER_MSG_COUNT) + time_left = MAP_REGISTER_INTERVAL; + else + { + mreg_sent_counter++; + time_left = QUICK_MAP_REGISTER_INTERVAL; + } + send_map_register (lcm, 1 /* want map notify */ ); + } +} + +static uword +send_map_resolver_service (vlib_main_t * vm, + vlib_node_runtime_t * rt, vlib_frame_t * f) +{ + u32 *expired = 0; + 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); + + /* *INDENT-OFF* */ + pool_foreach (pmr, lcm->pending_map_requests_pool, + ({ + if (!pmr->to_be_removed) + update_pending_request (pmr, period); + })); + /* *INDENT-ON* */ + + remove_dead_pending_map_requests (lcm); + + update_map_register (lcm, period); + update_rloc_probing (lcm, period); + + u64 now = clib_cpu_time_now (); + expired = timing_wheel_advance (&lcm->wheel, now, expired, 0); + if (vec_len (expired) > 0) + { + u32 *mi = 0; + vec_foreach (mi, expired) + { + remove_expired_mapping (lcm, mi[0]); + } + _vec_len (expired) = 0; + } + } + + /* unreachable */ return 0; } -VLIB_INIT_FUNCTION(lisp_cp_init); +/* *INDENT-OFF* */ +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, +}; +/* *INDENT-ON* */ + +VLIB_INIT_FUNCTION (lisp_cp_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */