/* *------------------------------------------------------------------ * map_api.c - vnet map api * * Copyright (c) 2016 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *------------------------------------------------------------------ */ #include <map/map.h> #include <map/map_msg_enum.h> #include <vnet/ip/ip.h> #include <vnet/fib/fib_table.h> #include <vlibmemory/api.h> #define vl_typedefs /* define message structures */ #include <map/map_all_api_h.h> #undef vl_typedefs #define vl_endianfun /* define message structures */ #include <map/map_all_api_h.h> #undef vl_endianfun /* instantiate all the print functions we know about */ #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__) #define vl_printfun #include <map/map_all_api_h.h> #undef vl_printfun /* Get the API version number */ #define vl_api_version(n,v) static u32 api_version=(v); #include <map/map_all_api_h.h> #undef vl_api_version #define REPLY_MSG_ID_BASE mm->msg_id_base #include <vlibapi/api_helper_macros.h> static void vl_api_map_add_domain_t_handler (vl_api_map_add_domain_t * mp) { map_main_t *mm = &map_main; vl_api_map_add_domain_reply_t *rmp; int rv = 0; u32 index; u8 flags = 0; u8 *vtag = 0; vtag = vl_api_from_api_to_vec (&mp->tag); rv = map_create_domain ((ip4_address_t *) & mp->ip4_prefix.address, mp->ip4_prefix.len, (ip6_address_t *) & mp->ip6_prefix.address, mp->ip6_prefix.len, (ip6_address_t *) & mp->ip6_src.address, mp->ip6_src.len, mp->ea_bits_len, mp->psid_offset, mp->psid_length, &index, ntohs (mp->mtu), flags, vtag); vec_free (vtag); /* *INDENT-OFF* */ REPLY_MACRO2(VL_API_MAP_ADD_DOMAIN_REPLY, ({ rmp->index = ntohl(index); })); /* *INDENT-ON* */ } static void vl_api_map_del_domain_t_handler (vl_api_map_del_domain_t * mp) { map_main_t *mm = &map_main; vl_api_map_del_domain_reply_t *rmp; int rv = 0; rv = map_delete_domain (ntohl (mp->index)); REPLY_MACRO (VL_API_MAP_DEL_DOMAIN_REPLY); } static void vl_api_map_add_del_rule_t_handler (vl_api_map_add_del_rule_t * mp) { map_main_t *mm = &map_main; vl_api_map_del_domain_reply_t *rmp; int rv = 0; rv = map_add_del_psid (ntohl (mp->index), ntohs (mp->psid), (ip6_address_t *) & mp->ip6_dst, mp->is_add); REPLY_MACRO (VL_API_MAP_ADD_DEL_RULE_REPLY); } static void vl_api_map_domain_dump_t_handler (vl_api_map_domain_dump_t * mp) { vl_api_map_domain_details_t *rmp; map_main_t *mm = &map_main; map_domain_t *d; map_domain_extra_t *de; vl_api_registration_t *reg; u32 map_domain_index; if (pool_elts (mm->domains) == 0) return; reg = vl_api_client_index_to_registration (mp->client_index); if (!reg) return; /* *INDENT-OFF* */ pool_foreach(d, mm->domains, ({ map_domain_index = d - mm->domains; de = vec_elt_at_index(mm->domain_extras, map_domain_index); /* Make sure every field is initiated (or don't skip the clib_memset()) */ rmp = vl_msg_api_alloc (sizeof (*rmp) + vec_len(de->tag)); rmp->_vl_msg_id = htons(VL_API_MAP_DOMAIN_DETAILS + mm->msg_id_base); rmp->context = mp->context; rmp->domain_index = htonl(map_domain_index); clib_memcpy(&rmp->ip6_prefix.address, &d->ip6_prefix, sizeof(rmp->ip6_prefix.address)); clib_memcpy(&rmp->ip4_prefix.address, &d->ip4_prefix, sizeof(rmp->ip4_prefix.address)); clib_memcpy(&rmp->ip6_src.address, &d->ip6_src, sizeof(rmp->ip6_src.address)); rmp->ip6_prefix.len = d->ip6_prefix_len; rmp->ip4_prefix.len = d->ip4_prefix_len; rmp->ip6_src.len = d->ip6_src_len; rmp->ea_bits_len = d->ea_bits_len; rmp->psid_offset = d->psid_offset; rmp->psid_length = d->psid_length; rmp->flags = d->flags; rmp->mtu = htons(d->mtu); vl_api_vec_to_api_string (de->tag, &rmp->tag ); vl_api_send_msg (reg, (u8 *) rmp); })); /* *INDENT-ON* */ } static void vl_api_map_rule_dump_t_handler (vl_api_map_rule_dump_t * mp) { vl_api_registration_t *reg; u16 i; ip6_address_t dst; vl_api_map_rule_details_t *rmp; map_main_t *mm = &map_main; u32 domain_index = ntohl (mp->domain_index); map_domain_t *d; if (pool_elts (mm->domains) == 0) return; d = pool_elt_at_index (mm->domains, domain_index); if (!d || !d->rules) { return; } reg = vl_api_client_index_to_registration (mp->client_index); if (!reg) return; for (i = 0; i < (0x1 << d->psid_length); i++) { dst = d->rules[i]; if (dst.as_u64[0] == 0 && dst.as_u64[1] == 0) { continue; } rmp = vl_msg_api_alloc (sizeof (*rmp)); clib_memset (rmp, 0, sizeof (*rmp)); rmp->_vl_msg_id = ntohs (VL_API_MAP_RULE_DETAILS + mm->msg_id_base); rmp->psid = htons (i); clib_memcpy (&rmp->ip6_dst, &dst, sizeof (rmp->ip6_dst)); rmp->context = mp->context; vl_api_send_msg (reg, (u8 *) rmp); } } static void vl_api_map_summary_stats_t_handler (vl_api_map_summary_stats_t * mp) { vl_api_map_summary_stats_reply_t *rmp; vlib_combined_counter_main_t *cm; vlib_counter_t v; int i, which; u64 total_pkts[VLIB_N_RX_TX]; u64 total_bytes[VLIB_N_RX_TX]; map_main_t *mm = &map_main; vl_api_registration_t *reg; reg = vl_api_client_index_to_registration (mp->client_index); if (!reg) return; rmp = vl_msg_api_alloc (sizeof (*rmp)); rmp->_vl_msg_id = htons (VL_API_MAP_SUMMARY_STATS_REPLY + mm->msg_id_base); rmp->context = mp->context; rmp->retval = 0; if (pool_elts (mm->domains) == 0) { rmp->retval = -1; goto out; } clib_memset (total_pkts, 0, sizeof (total_pkts)); clib_memset (total_bytes, 0, sizeof (total_bytes)); map_domain_counter_lock (mm); vec_foreach (cm, mm->domain_counters) { which = cm - mm->domain_counters; for (i = 0; i < vlib_combined_counter_n_counters (cm); i++) { vlib_get_combined_counter (cm, i, &v); total_pkts[which] += v.packets; total_bytes[which] += v.bytes; } } map_domain_counter_unlock (mm); /* Note: in network byte order! */ rmp->total_pkts[MAP_DOMAIN_COUNTER_RX] = clib_host_to_net_u64 (total_pkts[MAP_DOMAIN_COUNTER_RX]); rmp->total_bytes[MAP_DOMAIN_COUNTER_RX] = clib_host_to_net_u64 (total_bytes[MAP_DOMAIN_COUNTER_RX]); rmp->total_pkts[MAP_DOMAIN_COUNTER_TX] = clib_host_to_net_u64 (total_pkts[MAP_DOMAIN_COUNTER_TX]); rmp->total_bytes[MAP_DOMAIN_COUNTER_TX] = clib_host_to_net_u64 (total_bytes[MAP_DOMAIN_COUNTER_TX]); rmp->total_bindings = clib_host_to_net_u64 (pool_elts (mm->domains)); rmp->total_ip4_fragments = 0; // Not yet implemented. Should be a simple counter. rmp->total_security_check[MAP_DOMAIN_COUNTER_TX] = clib_host_to_net_u64 (map_error_counter_get (ip4_map_node.index, MAP_ERROR_ENCAP_SEC_CHECK)); rmp->total_security_check[MAP_DOMAIN_COUNTER_RX] = clib_host_to_net_u64 (map_error_counter_get (ip4_map_node.index, MAP_ERROR_DECAP_SEC_CHECK)); out: vl_api_send_msg (reg, (u8 *) rmp); } int map_param_set_fragmentation (bool inner, bool ignore_df) { map_main_t *mm = &map_main; mm->frag_inner = ! !inner; mm->frag_ignore_df = ! !ignore_df; return 0; } static void vl_api_map_param_set_fragmentation_t_handler (vl_api_map_param_set_fragmentation_t * mp) { map_main_t *mm = &map_main; vl_api_map_param_set_fragmentation_reply_t *rmp; int rv = 0; rv = map_param_set_fragmentation (mp->inner, mp->ignore_df); REPLY_MACRO (VL_API_MAP_PARAM_SET_FRAGMENTATION_REPLY); } int map_param_set_icmp (ip4_address_t * icmp_src_address) { map_main_t *mm = &map_main; if (icmp_src_address == 0) return -1; mm->icmp4_src_address = *icmp_src_address; return 0; } static void vl_api_map_param_set_icmp_t_handler (vl_api_map_param_set_icmp_t * mp) { map_main_t *mm = &map_main; vl_api_map_param_set_icmp_reply_t *rmp; int rv; rv = map_param_set_icmp ((ip4_address_t *) & mp->ip4_err_relay_src); REPLY_MACRO (VL_API_MAP_PARAM_SET_ICMP_REPLY); } int map_param_set_icmp6 (u8 enable_unreachable) { map_main_t *mm = &map_main; mm->icmp6_enabled = ! !enable_unreachable; return 0; } static void vl_api_map_param_set_icmp6_t_handler (vl_api_map_param_set_icmp6_t * mp) { map_main_t *mm = &map_main; vl_api_map_param_set_icmp6_reply_t *rmp; int rv; rv = map_param_set_icmp6 (mp->enable_unreachable); REPLY_MACRO (VL_API_MAP_PARAM_SET_ICMP6_REPLY); } static void vl_api_map_param_add_del_pre_resolve_t_handler (vl_api_map_param_add_del_pre_resolve_t * mp) { map_main_t *mm = &map_main; vl_api_map_param_add_del_pre_resolve_reply_t *rmp; int rv = 0; map_pre_resolve ((ip4_address_t *) & mp->ip4_nh_address, (ip6_address_t *) & mp->ip6_nh_address, !mp->is_add); REPLY_MACRO (VL_API_MAP_PARAM_ADD_DEL_PRE_RESOLVE_REPLY); } int map_param_set_reassembly (bool is_ipv6, u16 lifetime_ms, u16 pool_size, u32 buffers, f64 ht_ratio, u32 * reass, u32 * packets) { u32 ps_reass = 0, ps_packets = 0; u32 ht_reass = 0, ht_packets = 0; if (is_ipv6) { if (pool_size != (u16) ~ 0) { if (pool_size > MAP_IP6_REASS_CONF_POOL_SIZE_MAX) return MAP_ERR_BAD_POOL_SIZE; if (map_ip6_reass_conf_pool_size (pool_size, &ps_reass, &ps_packets)) return MAP_ERR_BAD_POOL_SIZE; } if (ht_ratio != (MAP_IP6_REASS_CONF_HT_RATIO_MAX + 1)) { if (ht_ratio > MAP_IP6_REASS_CONF_HT_RATIO_MAX) return MAP_ERR_BAD_HT_RATIO; if (map_ip6_reass_conf_ht_ratio (ht_ratio, &ht_reass, &ht_packets)) return MAP_ERR_BAD_HT_RATIO; } if (lifetime_ms != (u16) ~ 0) { if (lifetime_ms > MAP_IP6_REASS_CONF_LIFETIME_MAX) return MAP_ERR_BAD_LIFETIME; if (map_ip6_reass_conf_lifetime (lifetime_ms)) return MAP_ERR_BAD_LIFETIME; } if (buffers != ~0) { if (buffers > MAP_IP6_REASS_CONF_BUFFERS_MAX) return MAP_ERR_BAD_BUFFERS; if (map_ip6_reass_conf_buffers (buffers)) return MAP_ERR_BAD_BUFFERS; } if (map_main.ip6_reass_conf_buffers > map_main.ip6_reass_conf_pool_size * MAP_IP6_REASS_MAX_FRAGMENTS_PER_REASSEMBLY) { return MAP_ERR_BAD_BUFFERS_TOO_LARGE; } } else { if (pool_size != (u16) ~ 0) { if (pool_size > MAP_IP4_REASS_CONF_POOL_SIZE_MAX) return MAP_ERR_BAD_POOL_SIZE; if (map_ip4_reass_conf_pool_size (pool_size, &ps_reass, &ps_packets)) return MAP_ERR_BAD_POOL_SIZE; } if (ht_ratio != (MAP_IP4_REASS_CONF_HT_RATIO_MAX + 1)) { if (ht_ratio > MAP_IP4_REASS_CONF_HT_RATIO_MAX) return MAP_ERR_BAD_HT_RATIO; if (map_ip4_reass_conf_ht_ratio (ht_ratio, &ht_reass, &ht_packets)) return MAP_ERR_BAD_HT_RATIO; } if (lifetime_ms != (u16) ~ 0) { if (lifetime_ms > MAP_IP4_REASS_CONF_LIFETIME_MAX) return MAP_ERR_BAD_LIFETIME; if (map_ip4_reass_conf_lifetime (lifetime_ms)) return MAP_ERR_BAD_LIFETIME; } if (buffers != ~0) { if (buffers > MAP_IP4_REASS_CONF_BUFFERS_MAX) return MAP_ERR_BAD_BUFFERS; if (map_ip4_reass_conf_buffers (buffers)) return MAP_ERR_BAD_BUFFERS; } if (map_main.ip4_reass_conf_buffers > map_main.ip4_reass_conf_pool_size * MAP_IP4_REASS_MAX_FRAGMENTS_PER_REASSEMBLY) { return MAP_ERR_BAD_BUFFERS_TOO_LARGE; } } if (reass) *reass = ps_reass + ht_reass; if (packets) *packets = ps_packets + ht_packets; return 0; } static void vl_api_map_param_set_reassembly_t_handler (vl_api_map_param_set_reassembly_t * mp) { map_main_t *mm = &map_main; vl_api_map_param_set_reassembly_reply_t *rmp; u32 reass = 0, packets = 0; int rv; f64 ht_ratio; ht_ratio = (f64) clib_net_to_host_f64 (mp->ht_ratio); if (ht_ratio == ~0) ht_ratio = MAP_IP6_REASS_CONF_HT_RATIO_MAX + 1; rv = map_param_set_reassembly (mp->is_ip6, clib_net_to_host_u16 (mp->lifetime_ms), clib_net_to_host_u16 (mp->pool_size), clib_net_to_host_u32 (mp->buffers), ht_ratio, &reass, &packets); /* * FIXME: Should the lost reass and packet counts be returned in the API? */ REPLY_MACRO (VL_API_MAP_PARAM_SET_REASSEMBLY_REPLY); } int map_param_set_security_check (bool enable, bool fragments) { map_main_t *mm = &map_main; mm->sec_check = ! !enable; mm->sec_check_frag = ! !fragments; return 0; } static void vl_api_map_param_set_security_check_t_handler (vl_api_map_param_set_security_check_t * mp) { map_main_t *mm = &map_main; vl_api_map_param_set_security_check_reply_t *rmp; int rv; rv = map_param_set_security_check (mp->enable, mp->fragments); REPLY_MACRO (VL_API_MAP_PARAM_SET_SECURITY_CHECK_REPLY); } int map_param_set_traffic_class (bool copy, u8 tc) { map_main_t *mm = &map_main; mm->tc_copy = ! !copy; mm->tc = tc; return 0; } static void vl_api_map_param_set_traffic_class_t_handler (vl_api_map_param_set_traffic_class_t * mp) { map_main_t *mm = &map_main; vl_api_map_param_set_traffic_class_reply_t *rmp; int rv; rv = map_param_set_traffic_class (mp->copy, mp->class); REPLY_MACRO (VL_API_MAP_PARAM_SET_TRAFFIC_CLASS_REPLY); } int map_param_set_tcp (u16 tcp_mss) { map_main_t *mm = &map_main; mm->tcp_mss = tcp_mss; return 0; } static void vl_api_map_param_set_tcp_t_handler (vl_api_map_param_set_tcp_t * mp) { map_main_t *mm = &map_main; vl_api_map_param_set_tcp_reply_t *rmp; int rv = 0; map_param_set_tcp (ntohs (mp->tcp_mss)); REPLY_MACRO (VL_API_MAP_PARAM_SET_TCP_REPLY); } static void vl_api_map_param_get_t_handler (vl_api_map_param_get_t * mp) { map_main_t *mm = &map_main; vl_api_map_param_get_reply_t *rmp; vl_api_registration_t *reg; reg = vl_api_client_index_to_registration (mp->client_index); if (!reg) return; rmp = vl_msg_api_alloc (sizeof (*rmp)); rmp->_vl_msg_id = htons (VL_API_MAP_PARAM_GET_REPLY + mm->msg_id_base); rmp->context = mp->context; rmp->retval = 0; rmp->frag_inner = mm->frag_inner; rmp->frag_ignore_df = mm->frag_ignore_df; clib_memcpy (&rmp->icmp_ip4_err_relay_src, &mm->icmp4_src_address, sizeof (rmp->icmp_ip4_err_relay_src)); rmp->icmp6_enable_unreachable = mm->icmp6_enabled; /* * FIXME: How are these addresses re-extracted from the FIB? * Or should a local map_main copy be kept? */ clib_memset (&rmp->ip4_nh_address, 0, sizeof (rmp->ip4_nh_address)); clib_memset (&rmp->ip6_nh_address, 0, sizeof (rmp->ip6_nh_address)); rmp->ip4_lifetime_ms = clib_net_to_host_u16 (mm->ip4_reass_conf_lifetime_ms); rmp->ip4_pool_size = clib_net_to_host_u16 (mm->ip4_reass_conf_pool_size); rmp->ip4_buffers = clib_net_to_host_u32 (mm->ip4_reass_conf_buffers); rmp->ip4_ht_ratio = clib_net_to_host_f64 (mm->ip4_reass_conf_ht_ratio); rmp->ip6_lifetime_ms = clib_net_to_host_u16 (mm->ip6_reass_conf_lifetime_ms); rmp->ip6_pool_size = clib_net_to_host_u16 (mm->ip6_reass_conf_pool_size); rmp->ip6_buffers = clib_net_to_host_u32 (mm->ip6_reass_conf_buffers); rmp->ip6_ht_ratio = clib_net_to_host_f64 (mm->ip6_reass_conf_ht_ratio); rmp->sec_check_enable = mm->sec_check; rmp->sec_check_fragments = mm->sec_check_frag; rmp->tc_copy = mm->tc_copy; rmp->tc_class = mm->tc; vl_api_send_msg (reg, (u8 *) rmp); } int map_if_enable_disable (bool is_enable, u32 sw_if_index, bool is_translation) { map_main_t *mm = &map_main; if (pool_is_free_index (mm->vnet_main->interface_main.sw_interfaces, sw_if_index)) return VNET_API_ERROR_INVALID_SW_IF_INDEX; is_enable = ! !is_enable; if (is_translation) { if (clib_bitmap_get (mm->bm_trans_enabled_by_sw_if, sw_if_index) == is_enable) return 0; } else { if (clib_bitmap_get (mm->bm_encap_enabled_by_sw_if, sw_if_index) == is_enable) return 0; } if (is_translation == false) { vnet_feature_enable_disable ("ip4-unicast", "ip4-map", sw_if_index, is_enable ? 1 : 0, 0, 0); vnet_feature_enable_disable ("ip6-unicast", "ip6-map", sw_if_index, is_enable ? 1 : 0, 0, 0); mm->bm_encap_enabled_by_sw_if = clib_bitmap_set (mm->bm_encap_enabled_by_sw_if, sw_if_index, is_enable); } else { vnet_feature_enable_disable ("ip4-unicast", "ip4-map-t", sw_if_index, is_enable ? 1 : 0, 0, 0); vnet_feature_enable_disable ("ip6-unicast", "ip6-map-t", sw_if_index, is_enable ? 1 : 0, 0, 0); mm->bm_trans_enabled_by_sw_if = clib_bitmap_set (mm->bm_trans_enabled_by_sw_if, sw_if_index, is_enable); } return 0; } static void vl_api_map_if_enable_disable_t_handler (vl_api_map_if_enable_disable_t * mp) { map_main_t *mm = &map_main; vl_api_map_if_enable_disable_reply_t *rmp; int rv = 0; VALIDATE_SW_IF_INDEX (mp); rv = map_if_enable_disable (mp->is_enable, htonl (mp->sw_if_index), mp->is_translation); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_MAP_IF_ENABLE_DISABLE_REPLY); } #define foreach_map_plugin_api_msg \ _(MAP_ADD_DOMAIN, map_add_domain) \ _(MAP_DEL_DOMAIN, map_del_domain) \ _(MAP_ADD_DEL_RULE, map_add_del_rule) \ _(MAP_DOMAIN_DUMP, map_domain_dump) \ _(MAP_RULE_DUMP, map_rule_dump) \ _(MAP_IF_ENABLE_DISABLE, map_if_enable_disable) \ _(MAP_SUMMARY_STATS, map_summary_stats) \ _(MAP_PARAM_SET_FRAGMENTATION, map_param_set_fragmentation) \ _(MAP_PARAM_SET_ICMP, map_param_set_icmp) \ _(MAP_PARAM_SET_ICMP6, map_param_set_icmp6) \ _(MAP_PARAM_ADD_DEL_PRE_RESOLVE, map_param_add_del_pre_resolve) \ _(MAP_PARAM_SET_REASSEMBLY, map_param_set_reassembly) \ _(MAP_PARAM_SET_SECURITY_CHECK, map_param_set_security_check) \ _(MAP_PARAM_SET_TRAFFIC_CLASS, map_param_set_traffic_class) \ _(MAP_PARAM_SET_TCP, map_param_set_tcp) \ _(MAP_PARAM_GET, map_param_get) #define vl_msg_name_crc_list #include <map/map_all_api_h.h> #undef vl_msg_name_crc_list static void setup_message_id_table (map_main_t * mm, api_main_t * am) { #define _(id,n,crc) \ vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + mm->msg_id_base); foreach_vl_msg_name_crc_map; #undef _ } /* Set up the API message handling tables */ clib_error_t * map_plugin_api_hookup (vlib_main_t * vm) { map_main_t *mm = &map_main; u8 *name = format (0, "map_%08x%c", api_version, 0); /* Ask for a correctly-sized block of API message decode slots */ mm->msg_id_base = vl_msg_api_get_msg_ids ((char *) name, VL_MSG_FIRST_AVAILABLE); #define _(N,n) \ vl_msg_api_set_handlers((VL_API_##N + mm->msg_id_base), \ #n, \ vl_api_##n##_t_handler, \ vl_noop_handler, \ vl_api_##n##_t_endian, \ vl_api_##n##_t_print, \ sizeof(vl_api_##n##_t), 1); foreach_map_plugin_api_msg; #undef _ /* * Set up the (msg_name, crc, message-id) table */ setup_message_id_table (mm, &api_main); vec_free (name); return 0; } /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */