diff options
| -rw-r--r-- | src/vnet/lisp-cp/control.c | 153 | ||||
| -rw-r--r-- | src/vnet/lisp-cp/control.h | 31 | ||||
| -rw-r--r-- | src/vnet/lisp-cp/lisp.api | 51 | ||||
| -rw-r--r-- | src/vnet/lisp-cp/lisp_api.c | 49 | ||||
| -rw-r--r-- | src/vnet/lisp-cp/lisp_cli.c | 102 |
5 files changed, 349 insertions, 37 deletions
diff --git a/src/vnet/lisp-cp/control.c b/src/vnet/lisp-cp/control.c index 043d60fc15c..c3406d8c6f2 100644 --- a/src/vnet/lisp-cp/control.c +++ b/src/vnet/lisp-cp/control.c @@ -432,11 +432,13 @@ 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; + gid_address_t *rmt_eid, *lcl_eid; + mapping_t *lcl_map, *rmt_map; u32 sw_if_index; uword *feip = 0, *dpid; fwd_entry_t *fe; u8 type, is_src_dst = 0; + int rv; memset (a, 0, sizeof (*a)); @@ -445,33 +447,44 @@ dp_add_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index) if (feip) dp_del_fwd_entry (lcm, src_map_index, dst_map_index); + /* + * Determine local mapping and eid + */ if (lcm->lisp_pitr) - src_map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index); + lcl_map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index); else - src_map = pool_elt_at_index (lcm->mapping_pool, src_map_index); - dst_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index); - - /* insert data plane forwarding entry */ + lcl_map = pool_elt_at_index (lcm->mapping_pool, src_map_index); + lcl_eid = &lcl_map->eid; + + /* + * Determine remote mapping and eid + */ + rmt_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index); + rmt_eid = &rmt_map->eid; + + /* + * Build and insert data plane forwarding entry + */ a->is_add = 1; if (MR_MODE_SRC_DST == lcm->map_request_mode) { - if (GID_ADDR_SRC_DST == gid_address_type (&dst_map->eid)) + if (GID_ADDR_SRC_DST == gid_address_type (rmt_eid)) { - gid_address_sd_to_flat (&a->rmt_eid, &dst_map->eid, - &gid_address_sd_dst (&dst_map->eid)); - gid_address_sd_to_flat (&a->lcl_eid, &dst_map->eid, - &gid_address_sd_src (&dst_map->eid)); + gid_address_sd_to_flat (&a->rmt_eid, rmt_eid, + &gid_address_sd_dst (rmt_eid)); + gid_address_sd_to_flat (&a->lcl_eid, rmt_eid, + &gid_address_sd_src (rmt_eid)); } else { - gid_address_copy (&a->rmt_eid, &dst_map->eid); - gid_address_copy (&a->lcl_eid, &src_map->eid); + gid_address_copy (&a->rmt_eid, rmt_eid); + gid_address_copy (&a->lcl_eid, lcl_eid); } is_src_dst = 1; } else - gid_address_copy (&a->rmt_eid, &dst_map->eid); + gid_address_copy (&a->rmt_eid, rmt_eid); a->vni = gid_address_vni (&a->rmt_eid); @@ -499,17 +512,22 @@ dp_add_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index) } /* find best locator pair that 1) verifies LISP policy 2) are connected */ - if (0 == get_locator_pairs (lcm, src_map, dst_map, &a->locator_pairs)) + rv = get_locator_pairs (lcm, lcl_map, rmt_map, &a->locator_pairs); + + /* Either rmt mapping is negative or we can't find underlay path. + * Try again with petr if configured */ + if (rv == 0 && (lcm->flags & LISP_FLAG_USE_PETR)) { - /* negative entry */ - a->is_negative = 1; - a->action = dst_map->action; + rmt_map = lisp_get_petr_mapping (lcm); + rv = get_locator_pairs (lcm, lcl_map, rmt_map, &a->locator_pairs); } - /* TODO remove */ - u8 ipver = ip_prefix_version (&gid_address_ippref (&a->rmt_eid)); - a->decap_next_index = (ipver == IP4) ? - LISP_GPE_INPUT_NEXT_IP4_INPUT : LISP_GPE_INPUT_NEXT_IP6_INPUT; + /* negative entry */ + if (rv == 0) + { + a->is_negative = 1; + a->action = rmt_map->action; + } vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index); @@ -521,7 +539,7 @@ dp_add_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index) if (is_src_dst) gid_address_copy (&fe->leid, &a->lcl_eid); else - gid_address_copy (&fe->leid, &src_map->eid); + gid_address_copy (&fe->leid, lcl_eid); fe->is_src_dst = is_src_dst; hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index, @@ -1191,7 +1209,6 @@ vnet_lisp_add_del_adjacency (vnet_lisp_add_del_adjacency_args_t * a) local_mi = lcm->lisp_pitr ? lcm->pitr_map_index : gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->leid); - if (GID_LOOKUP_MISS == local_mi) { clib_warning ("Local eid %U not found. Cannot add adjacency!", @@ -1273,6 +1290,69 @@ vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add) return 0; } +/** + * Configure Proxy-ETR + * + * @param ip PETR's IP address + * @param is_add Flag that indicates if this is an addition or removal + * + * return 0 on success + */ +int +vnet_lisp_use_petr (ip_address_t * ip, u8 is_add) +{ + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + u32 ls_index = ~0; + mapping_t *m; + vnet_lisp_add_del_locator_set_args_t _ls_args, *ls_args = &_ls_args; + locator_t loc; + + if (vnet_lisp_enable_disable_status () == 0) + { + clib_warning ("LISP is disabled!"); + return VNET_API_ERROR_LISP_DISABLED; + } + + memset (ls_args, 0, sizeof (*ls_args)); + + if (is_add) + { + /* Create dummy petr locator-set */ + gid_address_from_ip (&loc.address, ip); + loc.priority = 1; + loc.state = loc.weight = 1; + + ls_args->is_add = 1; + ls_args->index = ~0; + vec_add1 (ls_args->locators, loc); + vnet_lisp_add_del_locator_set (ls_args, &ls_index); + + /* Add petr mapping */ + pool_get (lcm->mapping_pool, m); + m->locator_set_index = ls_index; + lcm->petr_map_index = m - lcm->mapping_pool; + + /* Enable use-petr */ + lcm->flags |= LISP_FLAG_USE_PETR; + } + else + { + m = pool_elt_at_index (lcm->mapping_pool, lcm->petr_map_index); + + /* Remove petr locator */ + ls_args->is_add = 0; + ls_args->index = m->locator_set_index; + vnet_lisp_add_del_locator_set (ls_args, 0); + + /* Remove petr mapping */ + pool_put_index (lcm->mapping_pool, lcm->petr_map_index); + + /* Disable use-petr */ + lcm->flags &= ~LISP_FLAG_USE_PETR; + } + return 0; +} + /* cleans locator to locator-set data and removes locators not part of * any locator-set */ static void @@ -2883,21 +2963,21 @@ process_map_reply (map_records_arg_t * a) m->authoritative, m->ttl, 1, 0 /* is_static */ , &dst_map_index); + if (dst_map_index == (u32) ~ 0) + continue; + /* try to program forwarding only if mapping saved or updated */ - if ((u32) ~ 0 != dst_map_index) - { - vnet_lisp_add_del_adjacency_args_t _adj_args, *adj_args = &_adj_args; - memset (adj_args, 0, sizeof (adj_args[0])); + vnet_lisp_add_del_adjacency_args_t _adj_args, *adj_args = &_adj_args; + memset (adj_args, 0, sizeof (adj_args[0])); - gid_address_copy (&adj_args->leid, &pmr->src); - gid_address_copy (&adj_args->reid, &m->eid); - adj_args->is_add = 1; - if (vnet_lisp_add_del_adjacency (adj_args)) - clib_warning ("failed to add adjacency!"); + gid_address_copy (&adj_args->leid, &pmr->src); + gid_address_copy (&adj_args->reid, &m->eid); + adj_args->is_add = 1; + if (vnet_lisp_add_del_adjacency (adj_args)) + clib_warning ("failed to add adjacency!"); - if ((u32) ~ 0 != m->ttl) - mapping_start_expiration_timer (lcm, dst_map_index, m->ttl * 60); - } + if ((u32) ~ 0 != m->ttl) + mapping_start_expiration_timer (lcm, dst_map_index, m->ttl * 60); } /* remove pending map request entry */ @@ -3442,6 +3522,7 @@ lisp_cp_init (vlib_main_t * vm) lcm->vnet_main = vnet_get_main (); lcm->mreq_itr_rlocs = ~0; lcm->lisp_pitr = 0; + lcm->flags = 0; memset (&lcm->active_map_resolver, 0, sizeof (lcm->active_map_resolver)); gid_dictionary_init (&lcm->mapping_index_by_gid); diff --git a/src/vnet/lisp-cp/control.h b/src/vnet/lisp-cp/control.h index aa76a424264..14f3baec150 100644 --- a/src/vnet/lisp-cp/control.h +++ b/src/vnet/lisp-cp/control.h @@ -94,8 +94,27 @@ typedef enum _MR_MODE_MAX } map_request_mode_t; +#define foreach_lisp_flag_bit \ + _(USE_PETR, "Use Proxy-ETR") + +typedef enum lisp_flag_bits +{ +#define _(sym, str) LISP_FLAG_BIT_##sym, + foreach_lisp_flag_bit +#undef _ +} lisp_flag_bits_e; + +typedef enum lisp_flags +{ +#define _(sym, str) LISP_FLAG_##sym = 1 << LISP_FLAG_BIT_##sym, + foreach_lisp_flag_bit +#undef _ +} lisp_flags_e; + typedef struct { + u32 flags; + /* LISP feature status */ u8 is_enabled; @@ -170,9 +189,12 @@ typedef struct /* track l2 and l3 interfaces that have been created for vni */ uword *l2_dp_intf_by_vni; - /* Proxy ETR map index */ + /* Proxy ITR map index */ u32 pitr_map_index; + /** Proxy ETR map index */ + u32 petr_map_index; + /* LISP PITR mode */ u8 lisp_pitr; @@ -280,6 +302,7 @@ clib_error_t *vnet_lisp_enable_disable (u8 is_enabled); u8 vnet_lisp_enable_disable_status (void); int vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add); +int vnet_lisp_use_petr (ip_address_t * ip, u8 is_add); typedef struct { @@ -303,6 +326,12 @@ int vnet_lisp_map_register_enable_disable (u8 is_enable); u8 vnet_lisp_map_register_state_get (void); u8 vnet_lisp_rloc_probe_state_get (void); +always_inline mapping_t * +lisp_get_petr_mapping (lisp_cp_main_t * lcm) +{ + return pool_elt_at_index (lcm->mapping_pool, lcm->petr_map_index); +} + #endif /* VNET_CONTROL_H_ */ /* diff --git a/src/vnet/lisp-cp/lisp.api b/src/vnet/lisp-cp/lisp.api index 20c17aa39b1..f0feafeecc8 100644 --- a/src/vnet/lisp-cp/lisp.api +++ b/src/vnet/lisp-cp/lisp.api @@ -220,6 +220,57 @@ define lisp_pitr_set_locator_set_reply i32 retval; }; +/** \brief configure or disable use of PETR + @param client_index - opaque cookie to identify the sender + @param context - sender context, to match reply w/ request + @param is_ip4 - Address is IPv4 if set and IPv6 otherwise + @param address - PETR IP address + @param is_add - add locator set if non-zero, else disable pitr +*/ +define lisp_use_petr +{ + u32 client_index; + u32 context; + u8 is_ip4; + u8 address[16]; + u8 is_add; +}; + +/** \brief Reply for lisp_pitr_set_locator_set + @param context - returned sender context, to match reply w/ request + @param retval - return code +*/ +define lisp_use_petr_reply +{ + u32 context; + i32 retval; +}; + +/** \brief Request for LISP PETR status + @param client_index - opaque cookie to identify the sender + @param context - sender context, to match reply w/ request +*/ +define show_lisp_use_petr +{ + u32 client_index; + u32 context; +}; + +/** \brief LISP PETR status, enable or disable + @param context - sender context, to match reply w/ request + @param status - LISP PETR enable if non-zero, else disable + @param is_ip4 - Address is IPv4 if non-zero, else IPv6 + @param address - PETR IP address +*/ +define show_lisp_use_petr_reply +{ + u32 context; + i32 retval; + u8 status; + u8 is_ip4; + u8 address[16]; +}; + /** \brief Get state of LISP RLOC probing @param client_index - opaque cookie to identify the sender @param context - sender context, to match reply w/ request diff --git a/src/vnet/lisp-cp/lisp_api.c b/src/vnet/lisp-cp/lisp_api.c index d3fc4627c5f..6e07a5c7000 100644 --- a/src/vnet/lisp-cp/lisp_api.c +++ b/src/vnet/lisp-cp/lisp_api.c @@ -73,6 +73,8 @@ _(LISP_ADD_DEL_MAP_REQUEST_ITR_RLOCS, \ _(LISP_GET_MAP_REQUEST_ITR_RLOCS, lisp_get_map_request_itr_rlocs) \ _(SHOW_LISP_PITR, show_lisp_pitr) \ _(SHOW_LISP_MAP_REQUEST_MODE, show_lisp_map_request_mode) \ +_(LISP_USE_PETR, lisp_use_petr) \ +_(SHOW_LISP_USE_PETR, show_lisp_use_petr) \ /** Used for transferring locators via VPP API */ /* *INDENT-OFF* */ @@ -399,6 +401,53 @@ vl_api_lisp_pitr_set_locator_set_t_handler (vl_api_lisp_pitr_set_locator_set_t } static void +vl_api_lisp_use_petr_t_handler (vl_api_lisp_use_petr_t * mp) +{ + vl_api_lisp_use_petr_reply_t *rmp; + int rv = 0; + ip_address_t addr; + + ip_address_set (&addr, &mp->address, mp->is_ip4 ? IP4 : IP6); + rv = vnet_lisp_use_petr (&addr, mp->is_add); + + REPLY_MACRO (VL_API_LISP_USE_PETR_REPLY); +} + +static void +vl_api_show_lisp_use_petr_t_handler (vl_api_show_lisp_use_petr_t * mp) +{ + unix_shared_memory_queue_t *q = NULL; + vl_api_show_lisp_use_petr_reply_t *rmp = NULL; + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + mapping_t *m; + locator_set_t *ls = 0; + int rv = 0; + locator_t *loc; + + q = vl_api_client_index_to_input_queue (mp->client_index); + if (q == 0) + { + return; + } + + rmp->status = lcm->flags & LISP_FLAG_USE_PETR; + if (rmp->status) + { + m = pool_elt_at_index (lcm->mapping_pool, lcm->petr_map_index); + if (~0 != m->locator_set_index) + { + ls = + pool_elt_at_index (lcm->locator_set_pool, m->locator_set_index); + loc = pool_elt_at_index (lcm->locator_pool, ls->locator_indices[0]); + gid_address_put (rmp->address, &loc->address); + rmp->is_ip4 = (gid_address_ip_version (&loc->address) == IP4); + } + } + + REPLY_MACRO (VL_API_SHOW_LISP_USE_PETR_REPLY); +} + +static void vl_api_lisp_add_del_map_request_itr_rlocs_t_handler (vl_api_lisp_add_del_map_request_itr_rlocs_t * mp) { diff --git a/src/vnet/lisp-cp/lisp_cli.c b/src/vnet/lisp-cp/lisp_cli.c index bb859ff12ec..15e6acbf6ee 100644 --- a/src/vnet/lisp-cp/lisp_cli.c +++ b/src/vnet/lisp-cp/lisp_cli.c @@ -1414,6 +1414,108 @@ VLIB_CLI_COMMAND (lisp_show_map_request_command) = { }; /* *INDENT-ON* */ +static clib_error_t * +lisp_use_petr_set_locator_set_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + u8 is_add = 1, ip_set = 0; + unformat_input_t _line_input, *line_input = &_line_input; + clib_error_t *error = 0; + ip_address_t ip; + + /* Get a line of input. */ + if (!unformat_user (input, unformat_line_input, line_input)) + return 0; + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "%U", unformat_ip_address, &ip)) + ip_set = 1; + else if (unformat (line_input, "disable")) + is_add = 0; + else + return clib_error_return (0, "parse error"); + } + + if (!ip_set) + { + clib_warning ("No petr IP specified!"); + goto done; + } + + if (vnet_lisp_use_petr (&ip, is_add)) + { + error = clib_error_return (0, "failed to %s petr!", + is_add ? "add" : "delete"); + } + +done: + return error; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_use_petr_set_locator_set_command) = { + .path = "lisp use-petr", + .short_help = "lisp use-petr [disable] <petr-ip>", + .function = lisp_use_petr_set_locator_set_command_fn, +}; + +static clib_error_t * +lisp_show_petr_command_fn (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd) +{ + lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); + mapping_t *m; + locator_set_t *ls; + locator_t *loc; + u8 *tmp_str = 0; + u8 use_petr = lcm->flags & LISP_FLAG_USE_PETR; + vlib_cli_output (vm, "%=20s%=16s", "petr", use_petr ? "ip" : ""); + + if (!use_petr) + { + vlib_cli_output (vm, "%=20s", "disable"); + return 0; + } + + if (~0 == lcm->petr_map_index) + { + tmp_str = format (0, "N/A"); + } + else + { + m = pool_elt_at_index (lcm->mapping_pool, lcm->petr_map_index); + if (~0 != m->locator_set_index) + { + ls = pool_elt_at_index(lcm->locator_set_pool, m->locator_set_index); + loc = pool_elt_at_index (lcm->locator_pool, ls->locator_indices[0]); + tmp_str = format (0, "%U", format_ip_address, &loc->address); + } + else + { + tmp_str = format (0, "N/A"); + } + } + vec_add1 (tmp_str, 0); + + vlib_cli_output (vm, "%=20s%=16s", "enable", tmp_str); + + vec_free (tmp_str); + + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (lisp_show_petr_command) = { + .path = "show lisp petr", + .short_help = "Show petr", + .function = lisp_show_petr_command_fn, +}; + +/* *INDENT-ON* */ + +/* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * |