diff options
Diffstat (limited to 'src/plugins/nat/nat.c')
| -rwxr-xr-x | src/plugins/nat/nat.c | 2701 |
1 files changed, 990 insertions, 1711 deletions
diff --git a/src/plugins/nat/nat.c b/src/plugins/nat/nat.c index d4c266a2b16..efca4404ddd 100755 --- a/src/plugins/nat/nat.c +++ b/src/plugins/nat/nat.c @@ -36,6 +36,7 @@ snat_main_t snat_main; +/* *INDENT-OFF* */ /* Hook up input features */ VNET_FEATURE_INIT (ip4_snat_in2out, static) = { @@ -166,42 +167,12 @@ VNET_FEATURE_INIT (ip4_nat44_ed_hairpinning, static) = }; -/* *INDENT-OFF* */ VLIB_PLUGIN_REGISTER () = { .version = VPP_BUILD_VER, .description = "Network Address Translation", }; /* *INDENT-ON* */ -vlib_node_registration_t nat44_classify_node; -vlib_node_registration_t nat44_ed_classify_node; -vlib_node_registration_t nat44_det_classify_node; -vlib_node_registration_t nat44_handoff_classify_node; - -#define foreach_nat44_classify_error \ -_(MAX_REASS, "Maximum reassemblies exceeded") \ -_(MAX_FRAG, "Maximum fragments per reassembly exceeded") - -typedef enum { -#define _(sym,str) NAT44_CLASSIFY_ERROR_##sym, - foreach_nat44_classify_error -#undef _ - NAT44_CLASSIFY_N_ERROR, -} nat44_classify_error_t; - -static char * nat44_classify_error_strings[] = { -#define _(sym,string) string, - foreach_nat44_classify_error -#undef _ -}; - -typedef enum { - NAT44_CLASSIFY_NEXT_IN2OUT, - NAT44_CLASSIFY_NEXT_OUT2IN, - NAT44_CLASSIFY_NEXT_DROP, - NAT44_CLASSIFY_N_NEXT, -} nat44_classify_next_t; - void nat_free_session_data (snat_main_t * sm, snat_session_t * s, u32 thread_index) { @@ -223,7 +194,7 @@ nat_free_session_data (snat_main_t * sm, snat_session_t * s, u32 thread_index) ed_kv.key[0] = ed_key.as_u64[0]; ed_kv.key[1] = ed_key.as_u64[1]; if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &ed_kv, 0)) - nat_log_warn ("in2out_ed key del failed"); + nat_log_warn ("in2out_ed key del failed"); return; } @@ -231,61 +202,60 @@ nat_free_session_data (snat_main_t * sm, snat_session_t * s, u32 thread_index) if (is_ed_session (s)) { if (is_affinity_sessions (s)) - nat_affinity_unlock (s->ext_host_addr, s->out2in.addr, - s->in2out.protocol, s->out2in.port); + nat_affinity_unlock (s->ext_host_addr, s->out2in.addr, + s->in2out.protocol, s->out2in.port); ed_key.l_addr = s->out2in.addr; ed_key.r_addr = s->ext_host_addr; ed_key.fib_index = s->out2in.fib_index; if (snat_is_unk_proto_session (s)) - { - ed_key.proto = s->in2out.port; - ed_key.r_port = 0; - ed_key.l_port = 0; - } + { + ed_key.proto = s->in2out.port; + ed_key.r_port = 0; + ed_key.l_port = 0; + } else - { - ed_key.proto = snat_proto_to_ip_proto (s->in2out.protocol); - ed_key.l_port = s->out2in.port; - ed_key.r_port = s->ext_host_port; - } + { + ed_key.proto = snat_proto_to_ip_proto (s->in2out.protocol); + ed_key.l_port = s->out2in.port; + ed_key.r_port = s->ext_host_port; + } ed_kv.key[0] = ed_key.as_u64[0]; ed_kv.key[1] = ed_key.as_u64[1]; if (clib_bihash_add_del_16_8 (&tsm->out2in_ed, &ed_kv, 0)) - nat_log_warn ("out2in_ed key del failed"); + nat_log_warn ("out2in_ed key del failed"); ed_key.l_addr = s->in2out.addr; ed_key.fib_index = s->in2out.fib_index; if (!snat_is_unk_proto_session (s)) - ed_key.l_port = s->in2out.port; + ed_key.l_port = s->in2out.port; if (is_twice_nat_session (s)) - { - ed_key.r_addr = s->ext_host_nat_addr; - ed_key.r_port = s->ext_host_nat_port; - } + { + ed_key.r_addr = s->ext_host_nat_addr; + ed_key.r_port = s->ext_host_nat_port; + } ed_kv.key[0] = ed_key.as_u64[0]; ed_kv.key[1] = ed_key.as_u64[1]; if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &ed_kv, 0)) - nat_log_warn ("in2out_ed key del failed"); + nat_log_warn ("in2out_ed key del failed"); } else { kv.key = s->in2out.as_u64; if (clib_bihash_add_del_8_8 (&tsm->in2out, &kv, 0)) - nat_log_warn ("in2out key del failed"); + nat_log_warn ("in2out key del failed"); kv.key = s->out2in.as_u64; if (clib_bihash_add_del_8_8 (&tsm->out2in, &kv, 0)) - nat_log_warn ("out2in key del failed"); + nat_log_warn ("out2in key del failed"); } if (snat_is_unk_proto_session (s)) return; /* log NAT event */ - snat_ipfix_logging_nat44_ses_delete(s->in2out.addr.as_u32, - s->out2in.addr.as_u32, - s->in2out.protocol, - s->in2out.port, - s->out2in.port, - s->in2out.fib_index); + snat_ipfix_logging_nat44_ses_delete (s->in2out.addr.as_u32, + s->out2in.addr.as_u32, + s->in2out.protocol, + s->in2out.port, + s->out2in.port, s->in2out.fib_index); /* Twice NAT address and port for external host */ if (is_twice_nat_session (s)) @@ -294,26 +264,25 @@ nat_free_session_data (snat_main_t * sm, snat_session_t * s, u32 thread_index) key.port = s->ext_host_nat_port; key.addr.as_u32 = s->ext_host_nat_addr.as_u32; snat_free_outside_address_and_port (sm->twice_nat_addresses, - thread_index, &key); + thread_index, &key); } if (snat_is_session_static (s)) return; - if (s->outside_address_index != ~0) - snat_free_outside_address_and_port (sm->addresses, thread_index, - &s->out2in); + snat_free_outside_address_and_port (sm->addresses, thread_index, + &s->out2in); } snat_user_t * -nat_user_get_or_create (snat_main_t *sm, ip4_address_t *addr, u32 fib_index, - u32 thread_index) +nat_user_get_or_create (snat_main_t * sm, ip4_address_t * addr, u32 fib_index, + u32 thread_index) { snat_user_t *u = 0; snat_user_key_t user_key; clib_bihash_kv_8_8_t kv, value; snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index]; - dlist_elt_t * per_user_list_head_elt; + dlist_elt_t *per_user_list_head_elt; user_key.addr.as_u32 = addr->as_u32; user_key.fib_index = fib_index; @@ -331,7 +300,7 @@ nat_user_get_or_create (snat_main_t *sm, ip4_address_t *addr, u32 fib_index, pool_get (tsm->list_pool, per_user_list_head_elt); u->sessions_per_user_list_head_index = per_user_list_head_elt - - tsm->list_pool; + tsm->list_pool; clib_dlist_init (tsm->list_pool, u->sessions_per_user_list_head_index); @@ -339,7 +308,7 @@ nat_user_get_or_create (snat_main_t *sm, ip4_address_t *addr, u32 fib_index, /* add user */ if (clib_bihash_add_del_8_8 (&tsm->user_hash, &kv, 1)) - nat_log_warn ("user_hash keay add failed"); + nat_log_warn ("user_hash keay add failed"); } else { @@ -350,31 +319,32 @@ nat_user_get_or_create (snat_main_t *sm, ip4_address_t *addr, u32 fib_index, } snat_session_t * -nat_session_alloc_or_recycle (snat_main_t *sm, snat_user_t *u, u32 thread_index) +nat_session_alloc_or_recycle (snat_main_t * sm, snat_user_t * u, + u32 thread_index) { snat_session_t *s; snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index]; u32 oldest_per_user_translation_list_index, session_index; - dlist_elt_t * oldest_per_user_translation_list_elt; - dlist_elt_t * per_user_translation_list_elt; + dlist_elt_t *oldest_per_user_translation_list_elt; + dlist_elt_t *per_user_translation_list_elt; /* Over quota? Recycle the least recently used translation */ if ((u->nsessions + u->nstaticsessions) >= sm->max_translations_per_user) { oldest_per_user_translation_list_index = - clib_dlist_remove_head (tsm->list_pool, - u->sessions_per_user_list_head_index); + clib_dlist_remove_head (tsm->list_pool, + u->sessions_per_user_list_head_index); ASSERT (oldest_per_user_translation_list_index != ~0); /* Add it back to the end of the LRU list */ clib_dlist_addtail (tsm->list_pool, - u->sessions_per_user_list_head_index, - oldest_per_user_translation_list_index); + u->sessions_per_user_list_head_index, + oldest_per_user_translation_list_index); /* Get the list element */ oldest_per_user_translation_list_elt = - pool_elt_at_index (tsm->list_pool, - oldest_per_user_translation_list_index); + pool_elt_at_index (tsm->list_pool, + oldest_per_user_translation_list_index); /* Get the session index from the list element */ session_index = oldest_per_user_translation_list_elt->value; @@ -382,11 +352,10 @@ nat_session_alloc_or_recycle (snat_main_t *sm, snat_user_t *u, u32 thread_index) /* Get the session */ s = pool_elt_at_index (tsm->sessions, session_index); nat_free_session_data (sm, s, thread_index); - if (snat_is_session_static(s)) - u->nstaticsessions--; + if (snat_is_session_static (s)) + u->nstaticsessions--; else - u->nsessions--; - s->outside_address_index = ~0; + u->nsessions--; s->flags = 0; s->total_bytes = 0; s->total_pkts = 0; @@ -400,535 +369,92 @@ nat_session_alloc_or_recycle (snat_main_t *sm, snat_user_t *u, u32 thread_index) { pool_get (tsm->sessions, s); memset (s, 0, sizeof (*s)); - s->outside_address_index = ~0; /* Create list elts */ pool_get (tsm->list_pool, per_user_translation_list_elt); clib_dlist_init (tsm->list_pool, - per_user_translation_list_elt - tsm->list_pool); + per_user_translation_list_elt - tsm->list_pool); per_user_translation_list_elt->value = s - tsm->sessions; s->per_user_index = per_user_translation_list_elt - tsm->list_pool; s->per_user_list_head_index = u->sessions_per_user_list_head_index; clib_dlist_addtail (tsm->list_pool, - s->per_user_list_head_index, - per_user_translation_list_elt - tsm->list_pool); + s->per_user_list_head_index, + per_user_translation_list_elt - tsm->list_pool); } return s; } snat_session_t * -nat_ed_session_alloc (snat_main_t *sm, snat_user_t *u, u32 thread_index) +nat_ed_session_alloc (snat_main_t * sm, snat_user_t * u, u32 thread_index) { snat_session_t *s; snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index]; - dlist_elt_t * per_user_translation_list_elt; + dlist_elt_t *per_user_translation_list_elt; if ((u->nsessions + u->nstaticsessions) >= sm->max_translations_per_user) { - nat_log_warn ("max translations per user %U", format_ip4_address, &u->addr); + nat_log_warn ("max translations per user %U", format_ip4_address, + &u->addr); snat_ipfix_logging_max_entries_per_user (sm->max_translations_per_user, - u->addr.as_u32); + u->addr.as_u32); return 0; } pool_get (tsm->sessions, s); memset (s, 0, sizeof (*s)); - s->outside_address_index = ~0; /* Create list elts */ pool_get (tsm->list_pool, per_user_translation_list_elt); clib_dlist_init (tsm->list_pool, - per_user_translation_list_elt - tsm->list_pool); + per_user_translation_list_elt - tsm->list_pool); per_user_translation_list_elt->value = s - tsm->sessions; s->per_user_index = per_user_translation_list_elt - tsm->list_pool; s->per_user_list_head_index = u->sessions_per_user_list_head_index; clib_dlist_addtail (tsm->list_pool, - s->per_user_list_head_index, - per_user_translation_list_elt - tsm->list_pool); - - return s; -} - -typedef struct { - u8 next_in2out; - u8 cached; -} nat44_classify_trace_t; - -static u8 * format_nat44_classify_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 *); - nat44_classify_trace_t *t = va_arg (*args, nat44_classify_trace_t *); - char *next; - - if (t->cached) - s = format (s, "nat44-classify: fragment cached"); - else - { - next = t->next_in2out ? "nat44-in2out" : "nat44-out2in"; - s = format (s, "nat44-classify: next %s", next); - } + s->per_user_list_head_index, + per_user_translation_list_elt - tsm->list_pool); return s; } -static inline uword -nat44_classify_node_fn_inline (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame, - int is_ed) -{ - u32 n_left_from, * from, * to_next; - nat44_classify_next_t next_index; - snat_main_t *sm = &snat_main; - snat_static_mapping_t *m; - u32 thread_index = vm->thread_index; - snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index]; - u32 *fragments_to_drop = 0; - u32 *fragments_to_loopback = 0; - - from = vlib_frame_vector_args (frame); - n_left_from = frame->n_vectors; - next_index = node->cached_next_index; - - while (n_left_from > 0) - { - u32 n_left_to_next; - - vlib_get_next_frame (vm, node, next_index, - to_next, n_left_to_next); - - while (n_left_from > 0 && n_left_to_next > 0) - { - u32 bi0; - vlib_buffer_t *b0; - u32 next0 = NAT44_CLASSIFY_NEXT_IN2OUT, sw_if_index0, rx_fib_index0; - ip4_header_t *ip0; - snat_address_t *ap; - snat_session_key_t m_key0; - clib_bihash_kv_8_8_t kv0, value0; - clib_bihash_kv_16_8_t ed_kv0, ed_value0; - udp_header_t *udp0; - nat_reass_ip4_t *reass0; - u8 cached0 = 0; - - /* speculatively enqueue b0 to the current next frame */ - bi0 = from[0]; - to_next[0] = bi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - b0 = vlib_get_buffer (vm, bi0); - ip0 = vlib_buffer_get_current (b0); - udp0 = ip4_next_header (ip0); - - if (is_ed && ip0->protocol != IP_PROTOCOL_ICMP) - { - if (!ip4_is_fragment (ip0) || ip4_is_first_fragment (ip0)) - { - /* process leading fragment/whole packet (with L4 header) */ - sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX]; - rx_fib_index0 = - fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4, - sw_if_index0); - make_ed_kv (&ed_kv0, &ip0->src_address, &ip0->dst_address, - ip0->protocol, rx_fib_index0, udp0->src_port, - udp0->dst_port); - if (ip4_is_fragment (ip0)) - { - reass0 = nat_ip4_reass_find_or_create (ip0->src_address, - ip0->dst_address, - ip0->fragment_id, - ip0->protocol, - 1, - &fragments_to_drop); - if (PREDICT_FALSE (!reass0)) - { - next0 = NAT44_CLASSIFY_NEXT_DROP; - b0->error = node->errors[NAT44_CLASSIFY_ERROR_MAX_REASS]; - nat_log_notice ("maximum reassemblies exceeded"); - goto enqueue0; - } - if (!clib_bihash_search_16_8 (&tsm->in2out_ed, &ed_kv0, - &ed_value0)) - { - /* session exists so classify as IN2OUT, - * save this information for future fragments and set - * past fragments to be looped over and reprocessed */ - reass0->sess_index = ed_value0.value; - reass0->classify_next = NAT_REASS_IP4_CLASSIFY_NEXT_IN2OUT; - nat_ip4_reass_get_frags (reass0, - &fragments_to_loopback); - goto enqueue0; - } - else - { - /* session doesn't exist so continue in the code, - * save this information for future fragments and set - * past fragments to be looped over and reprocessed */ - reass0->flags |= NAT_REASS_FLAG_CLASSIFY_ED_CONTINUE; - nat_ip4_reass_get_frags (reass0, - &fragments_to_loopback); - } - } - else - { - /* process whole packet */ - if (!clib_bihash_search_16_8 (&tsm->in2out_ed, &ed_kv0, - &ed_value0)) - goto enqueue0; - /* session doesn't exist so continue in code */ - } - } - else - { - /* process non-first fragment */ - reass0 = nat_ip4_reass_find_or_create (ip0->src_address, - ip0->dst_address, - ip0->fragment_id, - ip0->protocol, - 1, - &fragments_to_drop); - if (PREDICT_FALSE (!reass0)) - { - next0 = NAT44_CLASSIFY_NEXT_DROP; - b0->error = node->errors[NAT44_CLASSIFY_ERROR_MAX_REASS]; - nat_log_notice ("maximum reassemblies exceeded"); - goto enqueue0; - } - /* check if first fragment has arrived */ - if (reass0->classify_next == NAT_REASS_IP4_CLASSIFY_NONE && - !(reass0->flags & NAT_REASS_FLAG_CLASSIFY_ED_CONTINUE)) - { - /* first fragment still hasn't arrived, cache this fragment */ - if (nat_ip4_reass_add_fragment (reass0, bi0, - &fragments_to_drop)) - { - b0->error = node->errors[NAT44_CLASSIFY_ERROR_MAX_FRAG]; - nat_log_notice ("maximum fragments per reassembly exceeded"); - next0 = NAT44_CLASSIFY_NEXT_DROP; - goto enqueue0; - } - cached0 = 1; - goto enqueue0; - } - if (reass0->classify_next == NAT_REASS_IP4_CLASSIFY_NEXT_IN2OUT) - goto enqueue0; - /* flag NAT_REASS_FLAG_CLASSIFY_ED_CONTINUE is set - * so keep the default next0 and continue in code to - * potentially find other classification for this packet */ - } - } - - vec_foreach (ap, sm->addresses) - { - if (ip0->dst_address.as_u32 == ap->addr.as_u32) - { - next0 = NAT44_CLASSIFY_NEXT_OUT2IN; - goto enqueue0; - } - } - - if (PREDICT_FALSE (pool_elts (sm->static_mappings))) - { - m_key0.addr = ip0->dst_address; - m_key0.port = 0; - m_key0.protocol = 0; - m_key0.fib_index = 0; - kv0.key = m_key0.as_u64; - /* try to classify the fragment based on IP header alone */ - if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, - &kv0, &value0)) - { - m = pool_elt_at_index (sm->static_mappings, value0.value); - if (m->local_addr.as_u32 != m->external_addr.as_u32) - next0 = NAT44_CLASSIFY_NEXT_OUT2IN; - goto enqueue0; - } - if (!ip4_is_fragment (ip0) || ip4_is_first_fragment (ip0)) - { - /* process leading fragment/whole packet (with L4 header) */ - m_key0.port = clib_net_to_host_u16 (udp0->dst_port); - m_key0.protocol = ip_proto_to_snat_proto (ip0->protocol); - kv0.key = m_key0.as_u64; - if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, - &kv0, &value0)) - { - m = pool_elt_at_index (sm->static_mappings, value0.value); - if (m->local_addr.as_u32 != m->external_addr.as_u32) - next0 = NAT44_CLASSIFY_NEXT_OUT2IN; - } - if (ip4_is_fragment (ip0)) - { - reass0 = nat_ip4_reass_find_or_create (ip0->src_address, - ip0->dst_address, - ip0->fragment_id, - ip0->protocol, - 1, - &fragments_to_drop); - if (PREDICT_FALSE (!reass0)) - { - next0 = NAT44_CLASSIFY_NEXT_DROP; - b0->error = node->errors[NAT44_CLASSIFY_ERROR_MAX_REASS]; - nat_log_notice ("maximum reassemblies exceeded"); - goto enqueue0; - } - /* save classification for future fragments and set past - * fragments to be looped over and reprocessed */ - if (next0 == NAT44_CLASSIFY_NEXT_OUT2IN) - reass0->classify_next = NAT_REASS_IP4_CLASSIFY_NEXT_OUT2IN; - else - reass0->classify_next = NAT_REASS_IP4_CLASSIFY_NEXT_IN2OUT; - nat_ip4_reass_get_frags (reass0, &fragments_to_loopback); - } - } - else - { - /* process non-first fragment */ - reass0 = nat_ip4_reass_find_or_create (ip0->src_address, - ip0->dst_address, - ip0->fragment_id, - ip0->protocol, - 1, - &fragments_to_drop); - if (PREDICT_FALSE (!reass0)) - { - next0 = NAT44_CLASSIFY_NEXT_DROP; - b0->error = node->errors[NAT44_CLASSIFY_ERROR_MAX_REASS]; - nat_log_notice ("maximum reassemblies exceeded"); - goto enqueue0; - } - if (reass0->classify_next == NAT_REASS_IP4_CLASSIFY_NONE) - /* first fragment still hasn't arrived */ - { - if (nat_ip4_reass_add_fragment (reass0, bi0, - &fragments_to_drop)) - { - b0->error = node->errors[NAT44_CLASSIFY_ERROR_MAX_FRAG]; - nat_log_notice ("maximum fragments per reassembly exceeded"); - next0 = NAT44_CLASSIFY_NEXT_DROP; - goto enqueue0; - } - cached0 = 1; - goto enqueue0; - } - else if (reass0->classify_next == NAT_REASS_IP4_CLASSIFY_NEXT_OUT2IN) - next0 = NAT44_CLASSIFY_NEXT_OUT2IN; - else if (reass0->classify_next == NAT_REASS_IP4_CLASSIFY_NEXT_IN2OUT) - next0 = NAT44_CLASSIFY_NEXT_IN2OUT; - } - } - - enqueue0: - if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE) - && (b0->flags & VLIB_BUFFER_IS_TRACED))) - { - nat44_classify_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->cached = cached0; - if (!cached0) - t->next_in2out = next0 == NAT44_CLASSIFY_NEXT_IN2OUT ? 1 : 0; - } - - if (cached0) - { - n_left_to_next++; - to_next--; - } - else - /* verify speculative enqueue, maybe switch current next frame */ - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, - to_next, n_left_to_next, - bi0, next0); - - if (n_left_from == 0 && vec_len (fragments_to_loopback)) - { - from = vlib_frame_vector_args (frame); - u32 len = vec_len (fragments_to_loopback); - if (len <= VLIB_FRAME_SIZE) - { - clib_memcpy (from, fragments_to_loopback, sizeof (u32) * len); - n_left_from = len; - vec_reset_length (fragments_to_loopback); - } - else - { - clib_memcpy (from, - fragments_to_loopback + (len - VLIB_FRAME_SIZE), - sizeof (u32) * VLIB_FRAME_SIZE); - n_left_from = VLIB_FRAME_SIZE; - _vec_len (fragments_to_loopback) = len - VLIB_FRAME_SIZE; - } - } - } - - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } - - nat_send_all_to_node (vm, fragments_to_drop, node, 0, NAT44_CLASSIFY_NEXT_DROP); - - vec_free (fragments_to_drop); - - return frame->n_vectors; -} - -static uword -nat44_classify_node_fn (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return nat44_classify_node_fn_inline (vm, node, frame, 0); -}; - -VLIB_REGISTER_NODE (nat44_classify_node) = { - .function = nat44_classify_node_fn, - .name = "nat44-classify", - .vector_size = sizeof (u32), - .format_trace = format_nat44_classify_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - .n_errors = ARRAY_LEN(nat44_classify_error_strings), - .error_strings = nat44_classify_error_strings, - .n_next_nodes = NAT44_CLASSIFY_N_NEXT, - .next_nodes = { - [NAT44_CLASSIFY_NEXT_IN2OUT] = "nat44-in2out", - [NAT44_CLASSIFY_NEXT_OUT2IN] = "nat44-out2in", - [NAT44_CLASSIFY_NEXT_DROP] = "error-drop", - }, -}; - -VLIB_NODE_FUNCTION_MULTIARCH (nat44_classify_node, - nat44_classify_node_fn); -static uword -nat44_ed_classify_node_fn (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return nat44_classify_node_fn_inline (vm, node, frame, 1); -}; - -VLIB_REGISTER_NODE (nat44_ed_classify_node) = { - .function = nat44_ed_classify_node_fn, - .name = "nat44-ed-classify", - .vector_size = sizeof (u32), - .format_trace = format_nat44_classify_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - .n_next_nodes = NAT44_CLASSIFY_N_NEXT, - .next_nodes = { - [NAT44_CLASSIFY_NEXT_IN2OUT] = "nat44-ed-in2out", - [NAT44_CLASSIFY_NEXT_OUT2IN] = "nat44-ed-out2in", - [NAT44_CLASSIFY_NEXT_DROP] = "error-drop", - }, -}; - -VLIB_NODE_FUNCTION_MULTIARCH (nat44_ed_classify_node, - nat44_ed_classify_node_fn); - -static uword -nat44_det_classify_node_fn (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return nat44_classify_node_fn_inline (vm, node, frame, 0); -}; - -VLIB_REGISTER_NODE (nat44_det_classify_node) = { - .function = nat44_det_classify_node_fn, - .name = "nat44-det-classify", - .vector_size = sizeof (u32), - .format_trace = format_nat44_classify_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - .n_next_nodes = NAT44_CLASSIFY_N_NEXT, - .next_nodes = { - [NAT44_CLASSIFY_NEXT_IN2OUT] = "nat44-det-in2out", - [NAT44_CLASSIFY_NEXT_OUT2IN] = "nat44-det-out2in", - [NAT44_CLASSIFY_NEXT_DROP] = "error-drop", - }, -}; - -VLIB_NODE_FUNCTION_MULTIARCH (nat44_det_classify_node, - nat44_det_classify_node_fn); - -static uword -nat44_handoff_classify_node_fn (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return nat44_classify_node_fn_inline (vm, node, frame, 0); -}; - -VLIB_REGISTER_NODE (nat44_handoff_classify_node) = { - .function = nat44_handoff_classify_node_fn, - .name = "nat44-handoff-classify", - .vector_size = sizeof (u32), - .format_trace = format_nat44_classify_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - .n_next_nodes = NAT44_CLASSIFY_N_NEXT, - .next_nodes = { - [NAT44_CLASSIFY_NEXT_IN2OUT] = "nat44-in2out-worker-handoff", - [NAT44_CLASSIFY_NEXT_OUT2IN] = "nat44-out2in-worker-handoff", - [NAT44_CLASSIFY_NEXT_DROP] = "error-drop", - }, -}; - -VLIB_NODE_FUNCTION_MULTIARCH (nat44_handoff_classify_node, - nat44_handoff_classify_node_fn); - -/** - * @brief Add/del NAT address to FIB. - * - * Add the external NAT address to the FIB as receive entries. This ensures - * that VPP will reply to ARP for this address and we don't need to enable - * proxy ARP on the outside interface. - * - * @param addr IPv4 address. - * @param plen address prefix length - * @param sw_if_index Interface. - * @param is_add If 0 delete, otherwise add. - */ void snat_add_del_addr_to_fib (ip4_address_t * addr, u8 p_len, u32 sw_if_index, - int is_add) + int is_add) { fib_prefix_t prefix = { .fp_len = p_len, .fp_proto = FIB_PROTOCOL_IP4, .fp_addr = { - .ip4.as_u32 = addr->as_u32, - }, + .ip4.as_u32 = addr->as_u32, + }, }; - u32 fib_index = ip4_fib_table_get_index_for_sw_if_index(sw_if_index); + u32 fib_index = ip4_fib_table_get_index_for_sw_if_index (sw_if_index); if (is_add) - fib_table_entry_update_one_path(fib_index, - &prefix, - FIB_SOURCE_PLUGIN_LOW, - (FIB_ENTRY_FLAG_CONNECTED | - FIB_ENTRY_FLAG_LOCAL | - FIB_ENTRY_FLAG_EXCLUSIVE), - DPO_PROTO_IP4, - NULL, - sw_if_index, - ~0, - 1, - NULL, - FIB_ROUTE_PATH_FLAG_NONE); + fib_table_entry_update_one_path (fib_index, + &prefix, + FIB_SOURCE_PLUGIN_LOW, + (FIB_ENTRY_FLAG_CONNECTED | + FIB_ENTRY_FLAG_LOCAL | + FIB_ENTRY_FLAG_EXCLUSIVE), + DPO_PROTO_IP4, + NULL, + sw_if_index, + ~0, 1, NULL, FIB_ROUTE_PATH_FLAG_NONE); else - fib_table_entry_delete(fib_index, - &prefix, - FIB_SOURCE_PLUGIN_LOW); + fib_table_entry_delete (fib_index, &prefix, FIB_SOURCE_PLUGIN_LOW); } -int snat_add_address (snat_main_t *sm, ip4_address_t *addr, u32 vrf_id, - u8 twice_nat) +int +snat_add_address (snat_main_t * sm, ip4_address_t * addr, u32 vrf_id, + u8 twice_nat) { - snat_address_t * ap; + snat_address_t *ap; snat_interface_t *i; vlib_thread_main_t *tm = vlib_get_thread_main (); @@ -936,11 +462,13 @@ int snat_add_address (snat_main_t *sm, ip4_address_t *addr, u32 vrf_id, return VNET_API_ERROR_FEATURE_DISABLED; /* Check if address already exists */ + /* *INDENT-OFF* */ vec_foreach (ap, twice_nat ? sm->twice_nat_addresses : sm->addresses) { if (ap->addr.as_u32 == addr->as_u32) return VNET_API_ERROR_VALUE_EXIST; } + /* *INDENT-ON* */ if (twice_nat) vec_add2 (sm->twice_nat_addresses, ap, 1); @@ -951,7 +479,7 @@ int snat_add_address (snat_main_t *sm, ip4_address_t *addr, u32 vrf_id, if (vrf_id != ~0) ap->fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, vrf_id, - FIB_SOURCE_PLUGIN_LOW); + FIB_SOURCE_PLUGIN_LOW); else ap->fib_index = ~0; #define _(N, i, n, s) \ @@ -961,11 +489,11 @@ int snat_add_address (snat_main_t *sm, ip4_address_t *addr, u32 vrf_id, vec_validate_init_empty (ap->busy_##n##_ports_per_thread, tm->n_vlib_mains - 1, 0); foreach_snat_protocol #undef _ - - if (twice_nat) + if (twice_nat) return 0; /* Add external address to FIB */ + /* *INDENT-OFF* */ pool_foreach (i, sm->interfaces, ({ if (nat_interface_is_inside(i) || sm->out2in_dpo) @@ -982,42 +510,44 @@ int snat_add_address (snat_main_t *sm, ip4_address_t *addr, u32 vrf_id, snat_add_del_addr_to_fib(addr, 32, i->sw_if_index, 1); break; })); + /* *INDENT-ON* */ return 0; } -static int is_snat_address_used_in_static_mapping (snat_main_t *sm, - ip4_address_t addr) +static int +is_snat_address_used_in_static_mapping (snat_main_t * sm, ip4_address_t addr) { snat_static_mapping_t *m; + /* *INDENT-OFF* */ pool_foreach (m, sm->static_mappings, ({ if (m->external_addr.as_u32 == addr.as_u32) return 1; })); + /* *INDENT-ON* */ return 0; } -void increment_v4_address (ip4_address_t * a) +void +increment_v4_address (ip4_address_t * a) { u32 v; - v = clib_net_to_host_u32(a->as_u32) + 1; - a->as_u32 = clib_host_to_net_u32(v); + v = clib_net_to_host_u32 (a->as_u32) + 1; + a->as_u32 = clib_host_to_net_u32 (v); } static void snat_add_static_mapping_when_resolved (snat_main_t * sm, - ip4_address_t l_addr, - u16 l_port, - u32 sw_if_index, - u16 e_port, - u32 vrf_id, - snat_protocol_t proto, - int addr_only, - int is_add, - u8 * tag) + ip4_address_t l_addr, + u16 l_port, + u32 sw_if_index, + u16 e_port, + u32 vrf_id, + snat_protocol_t proto, + int addr_only, int is_add, u8 * tag) { snat_static_map_resolve_t *rp; @@ -1032,16 +562,19 @@ snat_add_static_mapping_when_resolved (snat_main_t * sm, rp->is_add = is_add; rp->tag = vec_dup (tag); } - -static u32 get_thread_idx_by_port(u16 e_port) + +static u32 +get_thread_idx_by_port (u16 e_port) { - snat_main_t * sm = &snat_main; - u32 thread_idx = sm->num_workers; - if (sm->num_workers > 1) + snat_main_t *sm = &snat_main; + u32 thread_idx = sm->num_workers; + if (sm->num_workers > 1) { - thread_idx = sm->first_worker_index + sm->workers[(e_port - 1024) / sm->port_per_thread]; - } - return thread_idx; + thread_idx = + sm->first_worker_index + + sm->workers[(e_port - 1024) / sm->port_per_thread]; + } + return thread_idx; } /** @@ -1067,103 +600,104 @@ static u32 get_thread_idx_by_port(u16 e_port) * * @returns */ -int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr, - u16 l_port, u16 e_port, u32 vrf_id, int addr_only, - u32 sw_if_index, snat_protocol_t proto, int is_add, - twice_nat_type_t twice_nat, u8 out2in_only, - u8 * tag) +int +snat_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr, + u16 l_port, u16 e_port, u32 vrf_id, int addr_only, + u32 sw_if_index, snat_protocol_t proto, int is_add, + twice_nat_type_t twice_nat, u8 out2in_only, u8 * tag) { - snat_main_t * sm = &snat_main; + snat_main_t *sm = &snat_main; snat_static_mapping_t *m; snat_session_key_t m_key; clib_bihash_kv_8_8_t kv, value; snat_address_t *a = 0; u32 fib_index = ~0; - uword * p; + uword *p; snat_interface_t *interface; int i; snat_main_per_thread_data_t *tsm; snat_user_key_t u_key; snat_user_t *u; - dlist_elt_t * head, * elt; + dlist_elt_t *head, *elt; u32 elt_index, head_index; u32 ses_index; u64 user_index; - snat_session_t * s; + snat_session_t *s; snat_static_map_resolve_t *rp, *rp_match = 0; if (!sm->endpoint_dependent) { if (twice_nat || out2in_only) - return VNET_API_ERROR_FEATURE_DISABLED; + return VNET_API_ERROR_FEATURE_DISABLED; } /* If the external address is a specific interface address */ if (sw_if_index != ~0) { - ip4_address_t * first_int_addr; + ip4_address_t *first_int_addr; for (i = 0; i < vec_len (sm->to_resolve); i++) - { - rp = sm->to_resolve + i; - if (rp->sw_if_index != sw_if_index || - rp->l_addr.as_u32 != l_addr.as_u32 || - rp->vrf_id != vrf_id || rp->addr_only != addr_only) - continue; + { + rp = sm->to_resolve + i; + if (rp->sw_if_index != sw_if_index || + rp->l_addr.as_u32 != l_addr.as_u32 || + rp->vrf_id != vrf_id || rp->addr_only != addr_only) + continue; - if (!addr_only) - { - if (rp->l_port != l_port || rp->e_port != e_port || rp->proto != proto) - continue; - } + if (!addr_only) + { + if (rp->l_port != l_port || rp->e_port != e_port + || rp->proto != proto) + continue; + } - rp_match = rp; - break; - } + rp_match = rp; + break; + } /* Might be already set... */ first_int_addr = ip4_interface_first_address - (sm->ip4_main, sw_if_index, 0 /* just want the address*/); + (sm->ip4_main, sw_if_index, 0 /* just want the address */ ); if (is_add) - { - if (rp_match) - return VNET_API_ERROR_VALUE_EXIST; + { + if (rp_match) + return VNET_API_ERROR_VALUE_EXIST; - snat_add_static_mapping_when_resolved - (sm, l_addr, l_port, sw_if_index, e_port, vrf_id, proto, - addr_only, is_add, tag); + snat_add_static_mapping_when_resolved + (sm, l_addr, l_port, sw_if_index, e_port, vrf_id, proto, + addr_only, is_add, tag); - /* DHCP resolution required? */ - if (first_int_addr == 0) - { - return 0; - } - else - { - e_addr.as_u32 = first_int_addr->as_u32; - /* Identity mapping? */ - if (l_addr.as_u32 == 0) - l_addr.as_u32 = e_addr.as_u32; - } - } + /* DHCP resolution required? */ + if (first_int_addr == 0) + { + return 0; + } + else + { + e_addr.as_u32 = first_int_addr->as_u32; + /* Identity mapping? */ + if (l_addr.as_u32 == 0) + l_addr.as_u32 = e_addr.as_u32; + } + } else - { - if (!rp_match) - return VNET_API_ERROR_NO_SUCH_ENTRY; + { + if (!rp_match) + return VNET_API_ERROR_NO_SUCH_ENTRY; - vec_del1 (sm->to_resolve, i); + vec_del1 (sm->to_resolve, i); - if (first_int_addr) - { - e_addr.as_u32 = first_int_addr->as_u32; - /* Identity mapping? */ - if (l_addr.as_u32 == 0) - l_addr.as_u32 = e_addr.as_u32; - } - else - return 0; - } + if (first_int_addr) + { + e_addr.as_u32 = first_int_addr->as_u32; + /* Identity mapping? */ + if (l_addr.as_u32 == 0) + l_addr.as_u32 = e_addr.as_u32; + } + else + return 0; + } } m_key.addr = e_addr; @@ -1179,49 +713,50 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr, if (is_add) { if (m) - return VNET_API_ERROR_VALUE_EXIST; + return VNET_API_ERROR_VALUE_EXIST; if (twice_nat && addr_only) - return VNET_API_ERROR_UNSUPPORTED; + return VNET_API_ERROR_UNSUPPORTED; /* Convert VRF id to FIB index */ if (vrf_id != ~0) - { - p = hash_get (sm->ip4_main->fib_index_by_table_id, vrf_id); - if (!p) - return VNET_API_ERROR_NO_SUCH_FIB; - fib_index = p[0]; - } + { + p = hash_get (sm->ip4_main->fib_index_by_table_id, vrf_id); + if (!p) + return VNET_API_ERROR_NO_SUCH_FIB; + fib_index = p[0]; + } /* If not specified use inside VRF id from SNAT plugin startup config */ else - { - fib_index = sm->inside_fib_index; - vrf_id = sm->inside_vrf_id; - } + { + fib_index = sm->inside_fib_index; + vrf_id = sm->inside_vrf_id; + } if (!out2in_only) - { - m_key.addr = l_addr; - m_key.port = addr_only ? 0 : l_port; - m_key.protocol = addr_only ? 0 : proto; - m_key.fib_index = fib_index; - kv.key = m_key.as_u64; - if (!clib_bihash_search_8_8 (&sm->static_mapping_by_local, &kv, &value)) - return VNET_API_ERROR_VALUE_EXIST; - } + { + m_key.addr = l_addr; + m_key.port = addr_only ? 0 : l_port; + m_key.protocol = addr_only ? 0 : proto; + m_key.fib_index = fib_index; + kv.key = m_key.as_u64; + if (!clib_bihash_search_8_8 + (&sm->static_mapping_by_local, &kv, &value)) + return VNET_API_ERROR_VALUE_EXIST; + } /* Find external address in allocated addresses and reserve port for address and port pair mapping when dynamic translations enabled */ if (!(addr_only || sm->static_mapping_only || out2in_only)) - { - for (i = 0; i < vec_len (sm->addresses); i++) - { - if (sm->addresses[i].addr.as_u32 == e_addr.as_u32) - { - a = sm->addresses + i; - /* External port must be unused */ - switch (proto) - { + { + for (i = 0; i < vec_len (sm->addresses); i++) + { + if (sm->addresses[i].addr.as_u32 == e_addr.as_u32) + { + a = sm->addresses + i; + /* External port must be unused */ + switch (proto) + { #define _(N, j, n, s) \ case SNAT_PROTOCOL_##N: \ if (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, e_port)) \ @@ -1233,38 +768,38 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr, a->busy_##n##_ports_per_thread[get_thread_idx_by_port(e_port)]++; \ } \ break; - foreach_snat_protocol + foreach_snat_protocol #undef _ - default: - nat_log_info ("unknown protocol"); - return VNET_API_ERROR_INVALID_VALUE_2; - } - break; - } - } - /* External address must be allocated */ - if (!a && (l_addr.as_u32 != e_addr.as_u32)) - { - if (sw_if_index != ~0) - { - for (i = 0; i < vec_len (sm->to_resolve); i++) - { - rp = sm->to_resolve + i; - if (rp->addr_only) - continue; - if (rp->sw_if_index != sw_if_index && - rp->l_addr.as_u32 != l_addr.as_u32 && - rp->vrf_id != vrf_id && rp->l_port != l_port && - rp->e_port != e_port && rp->proto != proto) - continue; - - vec_del1 (sm->to_resolve, i); - break; - } - } - return VNET_API_ERROR_NO_SUCH_ENTRY; - } - } + default: + nat_log_info ("unknown protocol"); + return VNET_API_ERROR_INVALID_VALUE_2; + } + break; + } + } + /* External address must be allocated */ + if (!a && (l_addr.as_u32 != e_addr.as_u32)) + { + if (sw_if_index != ~0) + { + for (i = 0; i < vec_len (sm->to_resolve); i++) + { + rp = sm->to_resolve + i; + if (rp->addr_only) + continue; + if (rp->sw_if_index != sw_if_index && + rp->l_addr.as_u32 != l_addr.as_u32 && + rp->vrf_id != vrf_id && rp->l_port != l_port && + rp->e_port != e_port && rp->proto != proto) + continue; + + vec_del1 (sm->to_resolve, i); + break; + } + } + return VNET_API_ERROR_NO_SUCH_ENTRY; + } + } pool_get (sm->static_mappings, m); memset (m, 0, sizeof (*m)); @@ -1277,22 +812,22 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr, m->twice_nat = twice_nat; m->out2in_only = out2in_only; if (!addr_only) - { - m->local_port = l_port; - m->external_port = e_port; - m->proto = proto; - } + { + m->local_port = l_port; + m->external_port = e_port; + m->proto = proto; + } if (sm->num_workers > 1) - { - ip4_header_t ip = { - .src_address = m->local_addr, - }; - vec_add1 (m->workers, sm->worker_in2out_cb (&ip, m->fib_index)); - tsm = vec_elt_at_index (sm->per_thread_data, m->workers[0]); - } + { + ip4_header_t ip = { + .src_address = m->local_addr, + }; + vec_add1 (m->workers, sm->worker_in2out_cb (&ip, m->fib_index)); + tsm = vec_elt_at_index (sm->per_thread_data, m->workers[0]); + } else - tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers); + tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers); m_key.addr = m->local_addr; m_key.port = m->local_port; @@ -1301,74 +836,77 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr, kv.key = m_key.as_u64; kv.value = m - sm->static_mappings; if (!out2in_only) - clib_bihash_add_del_8_8(&sm->static_mapping_by_local, &kv, 1); + clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1); m_key.addr = m->external_addr; m_key.port = m->external_port; m_key.fib_index = 0; kv.key = m_key.as_u64; kv.value = m - sm->static_mappings; - clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 1); + clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 1); /* Delete dynamic sessions matching local address (+ local port) */ if (!(sm->static_mapping_only)) - { - u_key.addr = m->local_addr; - u_key.fib_index = m->fib_index; - kv.key = u_key.as_u64; - if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value)) - { - user_index = value.value; - u = pool_elt_at_index (tsm->users, user_index); - if (u->nsessions) - { - head_index = u->sessions_per_user_list_head_index; - head = pool_elt_at_index (tsm->list_pool, head_index); - elt_index = head->next; - elt = pool_elt_at_index (tsm->list_pool, elt_index); - ses_index = elt->value; - while (ses_index != ~0) - { - s = pool_elt_at_index (tsm->sessions, ses_index); - elt = pool_elt_at_index (tsm->list_pool, elt->next); - ses_index = elt->value; - - if (snat_is_session_static (s)) - continue; - - if (!addr_only && (clib_net_to_host_u16 (s->in2out.port) != m->local_port)) - continue; - - nat_free_session_data (sm, s, tsm - sm->per_thread_data); - nat44_delete_session (sm, s, tsm - sm->per_thread_data); - - if (!addr_only && !sm->endpoint_dependent) - break; - } - } - } - } + { + u_key.addr = m->local_addr; + u_key.fib_index = m->fib_index; + kv.key = u_key.as_u64; + if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value)) + { + user_index = value.value; + u = pool_elt_at_index (tsm->users, user_index); + if (u->nsessions) + { + head_index = u->sessions_per_user_list_head_index; + head = pool_elt_at_index (tsm->list_pool, head_index); + elt_index = head->next; + elt = pool_elt_at_index (tsm->list_pool, elt_index); + ses_index = elt->value; + while (ses_index != ~0) + { + s = pool_elt_at_index (tsm->sessions, ses_index); + elt = pool_elt_at_index (tsm->list_pool, elt->next); + ses_index = elt->value; + + if (snat_is_session_static (s)) + continue; + + if (!addr_only + && (clib_net_to_host_u16 (s->in2out.port) != + m->local_port)) + continue; + + nat_free_session_data (sm, s, + tsm - sm->per_thread_data); + nat44_delete_session (sm, s, tsm - sm->per_thread_data); + + if (!addr_only && !sm->endpoint_dependent) + break; + } + } + } + } } else { if (!m) - { - if (sw_if_index != ~0) - return 0; - else - return VNET_API_ERROR_NO_SUCH_ENTRY; - } + { + if (sw_if_index != ~0) + return 0; + else + return VNET_API_ERROR_NO_SUCH_ENTRY; + } /* Free external address port */ if (!(addr_only || sm->static_mapping_only || out2in_only)) - { - for (i = 0; i < vec_len (sm->addresses); i++) - { - if (sm->addresses[i].addr.as_u32 == e_addr.as_u32) - { - a = sm->addresses + i; - switch (proto) - { + { + for (i = 0; i < vec_len (sm->addresses); i++) + { + if (sm->addresses[i].addr.as_u32 == e_addr.as_u32) + { + a = sm->addresses + i; + switch (proto) + { #define _(N, j, n, s) \ case SNAT_PROTOCOL_##N: \ clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, e_port, 0); \ @@ -1378,21 +916,21 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr, a->busy_##n##_ports_per_thread[get_thread_idx_by_port(e_port)]--; \ } \ break; - foreach_snat_protocol + foreach_snat_protocol #undef _ - default: - nat_log_info ("unknown protocol"); - return VNET_API_ERROR_INVALID_VALUE_2; - } - break; - } - } - } + default: + nat_log_info ("unknown protocol"); + return VNET_API_ERROR_INVALID_VALUE_2; + } + break; + } + } + } if (sm->num_workers > 1) - tsm = vec_elt_at_index (sm->per_thread_data, m->workers[0]); + tsm = vec_elt_at_index (sm->per_thread_data, m->workers[0]); else - tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers); + tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers); m_key.addr = m->local_addr; m_key.port = m->local_port; @@ -1400,60 +938,62 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr, m_key.fib_index = m->fib_index; kv.key = m_key.as_u64; if (!out2in_only) - clib_bihash_add_del_8_8(&sm->static_mapping_by_local, &kv, 0); + clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 0); m_key.addr = m->external_addr; m_key.port = m->external_port; m_key.fib_index = 0; kv.key = m_key.as_u64; - clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 0); + clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 0); /* Delete session(s) for static mapping if exist */ if (!(sm->static_mapping_only) || - (sm->static_mapping_only && sm->static_mapping_connection_tracking)) - { - u_key.addr = m->local_addr; - u_key.fib_index = m->fib_index; - kv.key = u_key.as_u64; - if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value)) - { - user_index = value.value; - u = pool_elt_at_index (tsm->users, user_index); - if (u->nstaticsessions) - { - head_index = u->sessions_per_user_list_head_index; - head = pool_elt_at_index (tsm->list_pool, head_index); - elt_index = head->next; - elt = pool_elt_at_index (tsm->list_pool, elt_index); - ses_index = elt->value; - while (ses_index != ~0) - { - s = pool_elt_at_index (tsm->sessions, ses_index); - elt = pool_elt_at_index (tsm->list_pool, elt->next); - ses_index = elt->value; - - if (!addr_only) - { - if ((s->out2in.addr.as_u32 != e_addr.as_u32) || - (clib_net_to_host_u16 (s->out2in.port) != e_port)) - continue; - } - - if (is_lb_session (s)) - continue; - - if (!snat_is_session_static (s)) - continue; - - nat_free_session_data (sm, s, tsm - sm->per_thread_data); - nat44_delete_session (sm, s, tsm - sm->per_thread_data); - - if (!addr_only && !sm->endpoint_dependent) - break; - } - } - } - } + (sm->static_mapping_only && sm->static_mapping_connection_tracking)) + { + u_key.addr = m->local_addr; + u_key.fib_index = m->fib_index; + kv.key = u_key.as_u64; + if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value)) + { + user_index = value.value; + u = pool_elt_at_index (tsm->users, user_index); + if (u->nstaticsessions) + { + head_index = u->sessions_per_user_list_head_index; + head = pool_elt_at_index (tsm->list_pool, head_index); + elt_index = head->next; + elt = pool_elt_at_index (tsm->list_pool, elt_index); + ses_index = elt->value; + while (ses_index != ~0) + { + s = pool_elt_at_index (tsm->sessions, ses_index); + elt = pool_elt_at_index (tsm->list_pool, elt->next); + ses_index = elt->value; + + if (!addr_only) + { + if ((s->out2in.addr.as_u32 != e_addr.as_u32) || + (clib_net_to_host_u16 (s->out2in.port) != + e_port)) + continue; + } + + if (is_lb_session (s)) + continue; + + if (!snat_is_session_static (s)) + continue; + + nat_free_session_data (sm, s, + tsm - sm->per_thread_data); + nat44_delete_session (sm, s, tsm - sm->per_thread_data); + + if (!addr_only && !sm->endpoint_dependent) + break; + } + } + } + } vec_free (m->tag); vec_free (m->workers); @@ -1465,6 +1005,7 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr, return 0; /* Add/delete external address to FIB */ + /* *INDENT-OFF* */ pool_foreach (interface, sm->interfaces, ({ if (nat_interface_is_inside(interface) || sm->out2in_dpo) @@ -1481,17 +1022,19 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr, snat_add_del_addr_to_fib(&e_addr, 32, interface->sw_if_index, is_add); break; })); + /* *INDENT-ON* */ return 0; } -int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port, - snat_protocol_t proto, - nat44_lb_addr_port_t *locals, u8 is_add, - twice_nat_type_t twice_nat, u8 out2in_only, - u8 *tag, u32 affinity) +int +nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port, + snat_protocol_t proto, + nat44_lb_addr_port_t * locals, u8 is_add, + twice_nat_type_t twice_nat, u8 out2in_only, + u8 * tag, u32 affinity) { - snat_main_t * sm = &snat_main; + snat_main_t *sm = &snat_main; snat_static_mapping_t *m; snat_session_key_t m_key; clib_bihash_kv_8_8_t kv, value; @@ -1502,8 +1045,8 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port, snat_main_per_thread_data_t *tsm; snat_user_key_t u_key; snat_user_t *u; - snat_session_t * s; - dlist_elt_t * head, * elt; + snat_session_t *s; + dlist_elt_t *head, *elt; uword *bitmap = 0; if (!sm->endpoint_dependent) @@ -1522,23 +1065,23 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port, if (is_add) { if (m) - return VNET_API_ERROR_VALUE_EXIST; + return VNET_API_ERROR_VALUE_EXIST; if (vec_len (locals) < 2) - return VNET_API_ERROR_INVALID_VALUE; + return VNET_API_ERROR_INVALID_VALUE; /* Find external address in allocated addresses and reserve port for address and port pair mapping when dynamic translations enabled */ if (!(sm->static_mapping_only || out2in_only)) - { - for (i = 0; i < vec_len (sm->addresses); i++) - { - if (sm->addresses[i].addr.as_u32 == e_addr.as_u32) - { - a = sm->addresses + i; - /* External port must be unused */ - switch (proto) - { + { + for (i = 0; i < vec_len (sm->addresses); i++) + { + if (sm->addresses[i].addr.as_u32 == e_addr.as_u32) + { + a = sm->addresses + i; + /* External port must be unused */ + switch (proto) + { #define _(N, j, n, s) \ case SNAT_PROTOCOL_##N: \ if (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, e_port)) \ @@ -1550,19 +1093,19 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port, a->busy_##n##_ports_per_thread[get_thread_idx_by_port(e_port)]++; \ } \ break; - foreach_snat_protocol + foreach_snat_protocol #undef _ - default: - nat_log_info ("unknown protocol"); - return VNET_API_ERROR_INVALID_VALUE_2; - } - break; - } - } - /* External address must be allocated */ - if (!a) - return VNET_API_ERROR_NO_SUCH_ENTRY; - } + default: + nat_log_info ("unknown protocol"); + return VNET_API_ERROR_INVALID_VALUE_2; + } + break; + } + } + /* External address must be allocated */ + if (!a) + return VNET_API_ERROR_NO_SUCH_ENTRY; + } pool_get (sm->static_mappings, m); memset (m, 0, sizeof (*m)); @@ -1576,10 +1119,10 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port, m->affinity = affinity; if (affinity) - m->affinity_per_service_list_head_index = - nat_affinity_get_per_service_list_head_index(); + m->affinity_per_service_list_head_index = + nat_affinity_get_per_service_list_head_index (); else - m->affinity_per_service_list_head_index = ~0; + m->affinity_per_service_list_head_index = ~0; m_key.addr = m->external_addr; m_key.port = m->external_port; @@ -1587,63 +1130,68 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port, m_key.fib_index = 0; kv.key = m_key.as_u64; kv.value = m - sm->static_mappings; - if (clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 1)) - { - nat_log_err ("static_mapping_by_external key add failed"); - return VNET_API_ERROR_UNSPECIFIED; - } + if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 1)) + { + nat_log_err ("static_mapping_by_external key add failed"); + return VNET_API_ERROR_UNSPECIFIED; + } m_key.fib_index = m->fib_index; for (i = 0; i < vec_len (locals); i++) - { - locals[i].fib_index = fib_table_find_or_create_and_lock ( - FIB_PROTOCOL_IP4, locals[i].vrf_id, FIB_SOURCE_PLUGIN_LOW); - m_key.addr = locals[i].addr; - m_key.fib_index = locals[i].fib_index; - if (!out2in_only) - { - m_key.port = locals[i].port; - kv.key = m_key.as_u64; - kv.value = m - sm->static_mappings; - clib_bihash_add_del_8_8(&sm->static_mapping_by_local, &kv, 1); - } - locals[i].prefix = (i == 0) ? locals[i].probability :\ - (locals[i - 1].prefix + locals[i].probability); - vec_add1 (m->locals, locals[i]); - if (sm->num_workers > 1) - { - ip4_header_t ip = { - .src_address = locals[i].addr, - }; - bitmap = clib_bitmap_set ( - bitmap, sm->worker_in2out_cb (&ip, m->fib_index), 1); - } - } + { + locals[i].fib_index = + fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, + locals[i].vrf_id, + FIB_SOURCE_PLUGIN_LOW); + m_key.addr = locals[i].addr; + m_key.fib_index = locals[i].fib_index; + if (!out2in_only) + { + m_key.port = locals[i].port; + kv.key = m_key.as_u64; + kv.value = m - sm->static_mappings; + clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1); + } + locals[i].prefix = (i == 0) ? locals[i].probability : + (locals[i - 1].prefix + locals[i].probability); + vec_add1 (m->locals, locals[i]); + if (sm->num_workers > 1) + { + ip4_header_t ip = { + .src_address = locals[i].addr, + }; + bitmap = + clib_bitmap_set (bitmap, + sm->worker_in2out_cb (&ip, m->fib_index), 1); + } + } /* Assign workers */ if (sm->num_workers > 1) - { + { + /* *INDENT-OFF* */ clib_bitmap_foreach (i, bitmap, ({ vec_add1(m->workers, i); })); - } + /* *INDENT-ON* */ + } } else { if (!m) - return VNET_API_ERROR_NO_SUCH_ENTRY; + return VNET_API_ERROR_NO_SUCH_ENTRY; /* Free external address port */ if (!(sm->static_mapping_only || out2in_only)) - { - for (i = 0; i < vec_len (sm->addresses); i++) - { - if (sm->addresses[i].addr.as_u32 == e_addr.as_u32) - { - a = sm->addresses + i; - switch (proto) - { + { + for (i = 0; i < vec_len (sm->addresses); i++) + { + if (sm->addresses[i].addr.as_u32 == e_addr.as_u32) + { + a = sm->addresses + i; + switch (proto) + { #define _(N, j, n, s) \ case SNAT_PROTOCOL_##N: \ clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, e_port, 0); \ @@ -1653,28 +1201,29 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port, a->busy_##n##_ports_per_thread[get_thread_idx_by_port(e_port)]--; \ } \ break; - foreach_snat_protocol + foreach_snat_protocol #undef _ - default: - nat_log_info ("unknown protocol"); - return VNET_API_ERROR_INVALID_VALUE_2; - } - break; - } - } - } + default: + nat_log_info ("unknown protocol"); + return VNET_API_ERROR_INVALID_VALUE_2; + } + break; + } + } + } m_key.addr = m->external_addr; m_key.port = m->external_port; m_key.protocol = m->proto; m_key.fib_index = 0; kv.key = m_key.as_u64; - if (clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 0)) - { - nat_log_err ("static_mapping_by_external key del failed"); - return VNET_API_ERROR_UNSPECIFIED; - } + if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 0)) + { + nat_log_err ("static_mapping_by_external key del failed"); + return VNET_API_ERROR_UNSPECIFIED; + } + /* *INDENT-OFF* */ vec_foreach (local, m->locals) { fib_table_unlock (local->fib_index, FIB_PROTOCOL_IP4, @@ -1736,11 +1285,12 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port, } } } + /* *INDENT-ON* */ if (m->affinity) - nat_affinity_flush_service (m->affinity_per_service_list_head_index); - vec_free(m->locals); - vec_free(m->tag); - vec_free(m->workers); + nat_affinity_flush_service (m->affinity_per_service_list_head_index); + vec_free (m->locals); + vec_free (m->tag); + vec_free (m->workers); pool_put (sm->static_mappings, m); } @@ -1749,8 +1299,8 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port, } int -snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm, - u8 twice_nat) +snat_del_address (snat_main_t * sm, ip4_address_t addr, u8 delete_sm, + u8 twice_nat) { snat_address_t *a = 0; snat_session_t *ses; @@ -1759,22 +1309,24 @@ snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm, snat_static_mapping_t *m; snat_interface_t *interface; int i; - snat_address_t *addresses = twice_nat ? sm->twice_nat_addresses : sm->addresses; + snat_address_t *addresses = + twice_nat ? sm->twice_nat_addresses : sm->addresses; /* Find SNAT address */ - for (i=0; i < vec_len (addresses); i++) + for (i = 0; i < vec_len (addresses); i++) { if (addresses[i].addr.as_u32 == addr.as_u32) - { - a = addresses + i; - break; - } + { + a = addresses + i; + break; + } } if (!a) return VNET_API_ERROR_NO_SUCH_ENTRY; if (delete_sm) { + /* *INDENT-OFF* */ pool_foreach (m, sm->static_mappings, ({ if (m->external_addr.as_u32 == addr.as_u32) @@ -1784,30 +1336,30 @@ snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm, m->proto, 0, m->twice_nat, m->out2in_only, m->tag); })); + /* *INDENT-ON* */ } else { /* Check if address is used in some static mapping */ - if (is_snat_address_used_in_static_mapping(sm, addr)) - { - nat_log_notice ("address used in static mapping"); - return VNET_API_ERROR_UNSPECIFIED; - } + if (is_snat_address_used_in_static_mapping (sm, addr)) + { + nat_log_notice ("address used in static mapping"); + return VNET_API_ERROR_UNSPECIFIED; + } } if (a->fib_index != ~0) - fib_table_unlock(a->fib_index, FIB_PROTOCOL_IP4, - FIB_SOURCE_PLUGIN_LOW); + fib_table_unlock (a->fib_index, FIB_PROTOCOL_IP4, FIB_SOURCE_PLUGIN_LOW); /* Delete sessions using address */ if (a->busy_tcp_ports || a->busy_udp_ports || a->busy_icmp_ports) { + /* *INDENT-OFF* */ vec_foreach (tsm, sm->per_thread_data) { pool_foreach (ses, tsm->sessions, ({ if (ses->out2in.addr.as_u32 == addr.as_u32) { - ses->outside_address_index = ~0; nat_free_session_data (sm, ses, tsm - sm->per_thread_data); vec_add1 (ses_to_be_removed, ses - tsm->sessions); } @@ -1820,7 +1372,8 @@ snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm, } vec_free (ses_to_be_removed); - } + } + /* *INDENT-ON* */ } #define _(N, i, n, s) \ @@ -1828,8 +1381,7 @@ snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm, vec_free (a->busy_##n##_ports_per_thread); foreach_snat_protocol #undef _ - - if (twice_nat) + if (twice_nat) { vec_del1 (sm->twice_nat_addresses, i); return 0; @@ -1838,6 +1390,7 @@ snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm, vec_del1 (sm->addresses, i); /* Delete external address from FIB */ + /* *INDENT-OFF* */ pool_foreach (interface, sm->interfaces, ({ if (nat_interface_is_inside(interface) || sm->out2in_dpo) @@ -1854,55 +1407,62 @@ snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm, snat_add_del_addr_to_fib(&addr, 32, interface->sw_if_index, 0); break; })); + /* *INDENT-ON* */ return 0; } -int snat_interface_add_del (u32 sw_if_index, u8 is_inside, int is_del) +int +snat_interface_add_del (u32 sw_if_index, u8 is_inside, int is_del) { snat_main_t *sm = &snat_main; snat_interface_t *i; - const char * feature_name, *del_feature_name; - snat_address_t * ap; - snat_static_mapping_t * m; - snat_det_map_t * dm; + const char *feature_name, *del_feature_name; + snat_address_t *ap; + snat_static_mapping_t *m; + snat_det_map_t *dm; nat_outside_fib_t *outside_fib; u32 fib_index = fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4, - sw_if_index); + sw_if_index); if (sm->out2in_dpo && !is_inside) return VNET_API_ERROR_UNSUPPORTED; + /* *INDENT-OFF* */ pool_foreach (i, sm->output_feature_interfaces, ({ if (i->sw_if_index == sw_if_index) return VNET_API_ERROR_VALUE_EXIST; })); + /* *INDENT-ON* */ if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking)) - feature_name = is_inside ? "nat44-in2out-fast" : "nat44-out2in-fast"; + feature_name = is_inside ? "nat44-in2out-fast" : "nat44-out2in-fast"; else { if (sm->num_workers > 1 && !sm->deterministic) - feature_name = is_inside ? "nat44-in2out-worker-handoff" : "nat44-out2in-worker-handoff"; + feature_name = + is_inside ? "nat44-in2out-worker-handoff" : + "nat44-out2in-worker-handoff"; else if (sm->deterministic) - feature_name = is_inside ? "nat44-det-in2out" : "nat44-det-out2in"; + feature_name = is_inside ? "nat44-det-in2out" : "nat44-det-out2in"; else if (sm->endpoint_dependent) - feature_name = is_inside ? "nat44-ed-in2out" : "nat44-ed-out2in"; + feature_name = is_inside ? "nat44-ed-in2out" : "nat44-ed-out2in"; else - feature_name = is_inside ? "nat44-in2out" : "nat44-out2in"; + feature_name = is_inside ? "nat44-in2out" : "nat44-out2in"; } if (sm->fq_in2out_index == ~0 && !sm->deterministic && sm->num_workers > 1) sm->fq_in2out_index = vlib_frame_queue_main_init (sm->in2out_node_index, - NAT_FQ_NELTS); + NAT_FQ_NELTS); if (sm->fq_out2in_index == ~0 && !sm->deterministic && sm->num_workers > 1) sm->fq_out2in_index = vlib_frame_queue_main_init (sm->out2in_node_index, - NAT_FQ_NELTS); + NAT_FQ_NELTS); if (!is_inside) { + /* *INDENT-OFF* */ vec_foreach (outside_fib, sm->outside_fibs) { if (outside_fib->fib_index == fib_index) @@ -1918,14 +1478,16 @@ int snat_interface_add_del (u32 sw_if_index, u8 is_inside, int is_del) goto feature_set; } } + /* *INDENT-ON* */ if (!is_del) - { - vec_add2 (sm->outside_fibs, outside_fib, 1); - outside_fib->refcount = 1; - outside_fib->fib_index = fib_index; - } + { + vec_add2 (sm->outside_fibs, outside_fib, 1); + outside_fib->refcount = 1; + outside_fib->fib_index = fib_index; + } } feature_set: + /* *INDENT-OFF* */ pool_foreach (i, sm->interfaces, ({ if (i->sw_if_index == sw_if_index) @@ -2046,6 +1608,7 @@ feature_set: goto fib; } })); + /* *INDENT-ON* */ if (is_del) return VNET_API_ERROR_NO_SUCH_ENTRY; @@ -2053,16 +1616,17 @@ feature_set: pool_get (sm->interfaces, i); i->sw_if_index = sw_if_index; i->flags = 0; - vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index, 1, 0, 0); + vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index, 1, 0, + 0); if (is_inside && !sm->out2in_dpo) { if (sm->endpoint_dependent) - vnet_feature_enable_disable ("ip4-local", "nat44-ed-hairpinning", - sw_if_index, 1, 0, 0); + vnet_feature_enable_disable ("ip4-local", "nat44-ed-hairpinning", + sw_if_index, 1, 0, 0); else if (!sm->deterministic) - vnet_feature_enable_disable ("ip4-local", "nat44-hairpinning", - sw_if_index, 1, 0, 0); + vnet_feature_enable_disable ("ip4-local", "nat44-hairpinning", + sw_if_index, 1, 0, 0); } set_flags: @@ -2076,6 +1640,7 @@ set_flags: /* Add/delete external addresses to FIB */ fib: + /* *INDENT-OFF* */ vec_foreach (ap, sm->addresses) snat_add_del_addr_to_fib(&ap->addr, 32, sw_if_index, !is_del); @@ -2091,73 +1656,76 @@ fib: ({ snat_add_del_addr_to_fib(&dm->out_addr, dm->out_plen, sw_if_index, !is_del); })); + /* *INDENT-ON* */ return 0; } -int snat_interface_add_del_output_feature (u32 sw_if_index, - u8 is_inside, - int is_del) +int +snat_interface_add_del_output_feature (u32 sw_if_index, + u8 is_inside, int is_del) { snat_main_t *sm = &snat_main; snat_interface_t *i; - snat_address_t * ap; - snat_static_mapping_t * m; + snat_address_t *ap; + snat_static_mapping_t *m; if (sm->deterministic || (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))) return VNET_API_ERROR_UNSUPPORTED; + /* *INDENT-OFF* */ pool_foreach (i, sm->interfaces, ({ if (i->sw_if_index == sw_if_index) return VNET_API_ERROR_VALUE_EXIST; })); + /* *INDENT-ON* */ if (is_inside) { if (sm->endpoint_dependent) - { - vnet_feature_enable_disable ("ip4-unicast", "nat44-ed-hairpin-dst", - sw_if_index, !is_del, 0, 0); - vnet_feature_enable_disable ("ip4-output", "nat44-ed-hairpin-src", - sw_if_index, !is_del, 0, 0); - } + { + vnet_feature_enable_disable ("ip4-unicast", "nat44-ed-hairpin-dst", + sw_if_index, !is_del, 0, 0); + vnet_feature_enable_disable ("ip4-output", "nat44-ed-hairpin-src", + sw_if_index, !is_del, 0, 0); + } else - { - vnet_feature_enable_disable ("ip4-unicast", "nat44-hairpin-dst", - sw_if_index, !is_del, 0, 0); - vnet_feature_enable_disable ("ip4-output", "nat44-hairpin-src", - sw_if_index, !is_del, 0, 0); - } + { + vnet_feature_enable_disable ("ip4-unicast", "nat44-hairpin-dst", + sw_if_index, !is_del, 0, 0); + vnet_feature_enable_disable ("ip4-output", "nat44-hairpin-src", + sw_if_index, !is_del, 0, 0); + } goto fq; } if (sm->num_workers > 1) { vnet_feature_enable_disable ("ip4-unicast", - "nat44-out2in-worker-handoff", - sw_if_index, !is_del, 0, 0); + "nat44-out2in-worker-handoff", + sw_if_index, !is_del, 0, 0); vnet_feature_enable_disable ("ip4-output", - "nat44-in2out-output-worker-handoff", - sw_if_index, !is_del, 0, 0); + "nat44-in2out-output-worker-handoff", + sw_if_index, !is_del, 0, 0); } else { if (sm->endpoint_dependent) - { - vnet_feature_enable_disable ("ip4-unicast", "nat44-ed-out2in", - sw_if_index, !is_del, 0, 0); - vnet_feature_enable_disable ("ip4-output", "nat44-ed-in2out-output", - sw_if_index, !is_del, 0, 0); - } + { + vnet_feature_enable_disable ("ip4-unicast", "nat44-ed-out2in", + sw_if_index, !is_del, 0, 0); + vnet_feature_enable_disable ("ip4-output", "nat44-ed-in2out-output", + sw_if_index, !is_del, 0, 0); + } else - { - vnet_feature_enable_disable ("ip4-unicast", "nat44-out2in", - sw_if_index, !is_del, 0, 0); - vnet_feature_enable_disable ("ip4-output", "nat44-in2out-output", - sw_if_index, !is_del, 0, 0); - } + { + vnet_feature_enable_disable ("ip4-unicast", "nat44-out2in", + sw_if_index, !is_del, 0, 0); + vnet_feature_enable_disable ("ip4-output", "nat44-in2out-output", + sw_if_index, !is_del, 0, 0); + } } fq: @@ -2166,8 +1734,10 @@ fq: vlib_frame_queue_main_init (sm->in2out_output_node_index, 0); if (sm->fq_out2in_index == ~0 && sm->num_workers > 1) - sm->fq_out2in_index = vlib_frame_queue_main_init (sm->out2in_node_index, 0); + sm->fq_out2in_index = + vlib_frame_queue_main_init (sm->out2in_node_index, 0); + /* *INDENT-OFF* */ pool_foreach (i, sm->output_feature_interfaces, ({ if (i->sw_if_index == sw_if_index) @@ -2180,6 +1750,7 @@ fq: goto fib; } })); + /* *INDENT-ON* */ if (is_del) return VNET_API_ERROR_NO_SUCH_ENTRY; @@ -2197,6 +1768,7 @@ fib: if (is_inside) return 0; + /* *INDENT-OFF* */ vec_foreach (ap, sm->addresses) snat_add_del_addr_to_fib(&ap->addr, 32, sw_if_index, !is_del); @@ -2207,11 +1779,13 @@ fib: snat_add_del_addr_to_fib(&m->external_addr, 32, sw_if_index, !is_del); })); + /* *INDENT-ON* */ return 0; } -int snat_set_workers (uword * bitmap) +int +snat_set_workers (uword * bitmap) { snat_main_t *sm = &snat_main; int i, j = 0; @@ -2223,12 +1797,14 @@ int snat_set_workers (uword * bitmap) return VNET_API_ERROR_INVALID_WORKER; vec_free (sm->workers); + /* *INDENT-OFF* */ clib_bitmap_foreach (i, bitmap, ({ vec_add1(sm->workers, i); sm->per_thread_data[sm->first_worker_index + i].snat_thread_index = j; j++; })); + /* *INDENT-ON* */ sm->port_per_thread = (0xffff - 1024) / _vec_len (sm->workers); sm->num_snat_thread = _vec_len (sm->workers); @@ -2239,47 +1815,44 @@ int snat_set_workers (uword * bitmap) static void snat_ip4_add_del_interface_address_cb (ip4_main_t * im, - uword opaque, - u32 sw_if_index, - ip4_address_t * address, - u32 address_length, - u32 if_address_index, - u32 is_delete); + uword opaque, + u32 sw_if_index, + ip4_address_t * address, + u32 address_length, + u32 if_address_index, u32 is_delete); static void nat_ip4_add_del_addr_only_sm_cb (ip4_main_t * im, - uword opaque, - u32 sw_if_index, - ip4_address_t * address, - u32 address_length, - u32 if_address_index, - u32 is_delete); + uword opaque, + u32 sw_if_index, + ip4_address_t * address, + u32 address_length, + u32 if_address_index, u32 is_delete); static int nat_alloc_addr_and_port_default (snat_address_t * addresses, - u32 fib_index, - u32 thread_index, - snat_session_key_t * k, - u32 * address_indexp, - u16 port_per_thread, - u32 snat_thread_index); - -static clib_error_t * snat_init (vlib_main_t * vm) + u32 fib_index, + u32 thread_index, + snat_session_key_t * k, + u16 port_per_thread, u32 snat_thread_index); + +static clib_error_t * +snat_init (vlib_main_t * vm) { - snat_main_t * sm = &snat_main; - clib_error_t * error = 0; - ip4_main_t * im = &ip4_main; - ip_lookup_main_t * lm = &im->lookup_main; + snat_main_t *sm = &snat_main; + clib_error_t *error = 0; + ip4_main_t *im = &ip4_main; + ip_lookup_main_t *lm = &im->lookup_main; uword *p; vlib_thread_registration_t *tr; vlib_thread_main_t *tm = vlib_get_thread_main (); uword *bitmap = 0; u32 i; ip4_add_del_interface_address_callback_t cb4; - vlib_node_t * error_drop_node; + vlib_node_t *error_drop_node; sm->vlib_main = vm; - sm->vnet_main = vnet_get_main(); + sm->vnet_main = vnet_get_main (); sm->ip4_main = im; sm->ip4_lookup_main = lm; sm->api_main = &api_main; @@ -2307,10 +1880,10 @@ static clib_error_t * snat_init (vlib_main_t * vm) { tr = (vlib_thread_registration_t *) p[0]; if (tr) - { - sm->num_workers = tr->count; - sm->first_worker_index = tr->first_index; - } + { + sm->num_workers = tr->count; + sm->first_worker_index = tr->first_index; + } } vec_validate (sm->per_thread_data, tm->n_vlib_mains - 1); @@ -2318,9 +1891,9 @@ static clib_error_t * snat_init (vlib_main_t * vm) /* Use all available workers by default */ if (sm->num_workers > 1) { - for (i=0; i < sm->num_workers; i++) - bitmap = clib_bitmap_set (bitmap, i, 1); - snat_set_workers(bitmap); + for (i = 0; i < sm->num_workers; i++) + bitmap = clib_bitmap_set (bitmap, i, 1); + snat_set_workers (bitmap); clib_bitmap_free (bitmap); } else @@ -2328,7 +1901,7 @@ static clib_error_t * snat_init (vlib_main_t * vm) sm->per_thread_data[0].snat_thread_index = 0; } - error = snat_api_init(vm, sm); + error = snat_api_init (vm, sm); if (error) return error; @@ -2346,35 +1919,36 @@ static clib_error_t * snat_init (vlib_main_t * vm) nat_dpo_module_init (); /* Init IPFIX logging */ - snat_ipfix_logging_init(vm); + snat_ipfix_logging_init (vm); /* Init NAT64 */ - error = nat64_init(vm); + error = nat64_init (vm); if (error) return error; - dslite_init(vm); + dslite_init (vm); - nat66_init(); + nat66_init (); /* Init virtual fragmenentation reassembly */ - return nat_reass_init(vm); + return nat_reass_init (vm); } VLIB_INIT_FUNCTION (snat_init); -void snat_free_outside_address_and_port (snat_address_t * addresses, - u32 thread_index, - snat_session_key_t * k) +void +snat_free_outside_address_and_port (snat_address_t * addresses, + u32 thread_index, snat_session_key_t * k) { snat_address_t *a; u32 address_index; u16 port_host_byte_order = clib_net_to_host_u16 (k->port); - for (address_index = 0; address_index < vec_len (addresses); address_index++) + for (address_index = 0; address_index < vec_len (addresses); + address_index++) { if (addresses[address_index].addr.as_u32 == k->addr.as_u32) - break; + break; } ASSERT (address_index < vec_len (addresses)); @@ -2400,28 +1974,14 @@ void snat_free_outside_address_and_port (snat_address_t * addresses, } } -/** - * @brief Match NAT44 static mapping. - * - * @param sm NAT main. - * @param match Address and port to match. - * @param mapping External or local address and port of the matched mapping. - * @param by_external If 0 match by local address otherwise match by external - * address. - * @param is_addr_only If matched mapping is address only - * @param twice_nat If matched mapping is twice NAT. - * @param lb If matched mapping is load-balanced. - * - * @returns 0 if match found otherwise 1. - */ -int snat_static_mapping_match (snat_main_t * sm, - snat_session_key_t match, - snat_session_key_t * mapping, - u8 by_external, - u8 *is_addr_only, - twice_nat_type_t *twice_nat, - lb_nat_type_t *lb, - ip4_address_t * ext_host_addr) +int +snat_static_mapping_match (snat_main_t * sm, + snat_session_key_t match, + snat_session_key_t * mapping, + u8 by_external, + u8 * is_addr_only, + twice_nat_type_t * twice_nat, + lb_nat_type_t * lb, ip4_address_t * ext_host_addr) { clib_bihash_kv_8_8_t kv, value; snat_static_mapping_t *m; @@ -2450,7 +2010,7 @@ int snat_static_mapping_match (snat_main_t * sm, m_key.protocol = 0; kv.key = m_key.as_u64; if (clib_bihash_search_8_8 (mapping_hash, &kv, &value)) - return 1; + return 1; } m = pool_elt_at_index (sm->static_mappings, value.value); @@ -2458,59 +2018,63 @@ int snat_static_mapping_match (snat_main_t * sm, if (by_external) { if (vec_len (m->locals)) - { - if (PREDICT_FALSE(lb != 0)) - *lb = m->affinity ? AFFINITY_LB_NAT : LB_NAT; - if (m->affinity) - { - if (nat_affinity_find_and_lock (ext_host_addr[0], match.addr, - match.protocol, match.port, &backend_index)) - goto get_local; - - mapping->addr = m->locals[backend_index].addr; - mapping->port = clib_host_to_net_u16 (m->locals[backend_index].port); - mapping->fib_index = m->locals[backend_index].fib_index; - goto end; - } -get_local: - hi = vec_len (m->locals) - 1; - rand = 1 + (random_u32 (&sm->random_seed) % m->locals[hi].prefix); - while (lo < hi) - { - mid = ((hi - lo) >> 1) + lo; - (rand > m->locals[mid].prefix) ? (lo = mid + 1) : (hi = mid); - } - if (!(m->locals[lo].prefix >= rand)) - return 1; - if (PREDICT_FALSE (sm->num_workers > 1)) - { - ip4_header_t ip = { - .src_address = m->locals[lo].addr, - }; - if (sm->worker_in2out_cb (&ip, m->fib_index) != vlib_get_thread_index ()) - goto get_local; - } - mapping->addr = m->locals[lo].addr; - mapping->port = clib_host_to_net_u16 (m->locals[lo].port); - mapping->fib_index = m->locals[lo].fib_index; - if (m->affinity) - { - if (nat_affinity_create_and_lock (ext_host_addr[0], match.addr, - match.protocol, match.port, lo, m->affinity, - m->affinity_per_service_list_head_index)) - nat_log_info ("create affinity record failed"); - } - } + { + if (PREDICT_FALSE (lb != 0)) + *lb = m->affinity ? AFFINITY_LB_NAT : LB_NAT; + if (m->affinity) + { + if (nat_affinity_find_and_lock (ext_host_addr[0], match.addr, + match.protocol, match.port, + &backend_index)) + goto get_local; + + mapping->addr = m->locals[backend_index].addr; + mapping->port = + clib_host_to_net_u16 (m->locals[backend_index].port); + mapping->fib_index = m->locals[backend_index].fib_index; + goto end; + } + get_local: + hi = vec_len (m->locals) - 1; + rand = 1 + (random_u32 (&sm->random_seed) % m->locals[hi].prefix); + while (lo < hi) + { + mid = ((hi - lo) >> 1) + lo; + (rand > m->locals[mid].prefix) ? (lo = mid + 1) : (hi = mid); + } + if (!(m->locals[lo].prefix >= rand)) + return 1; + if (PREDICT_FALSE (sm->num_workers > 1)) + { + ip4_header_t ip = { + .src_address = m->locals[lo].addr, + }; + if (sm->worker_in2out_cb (&ip, m->fib_index) != + vlib_get_thread_index ()) + goto get_local; + } + mapping->addr = m->locals[lo].addr; + mapping->port = clib_host_to_net_u16 (m->locals[lo].port); + mapping->fib_index = m->locals[lo].fib_index; + if (m->affinity) + { + if (nat_affinity_create_and_lock (ext_host_addr[0], match.addr, + match.protocol, match.port, + lo, m->affinity, + m->affinity_per_service_list_head_index)) + nat_log_info ("create affinity record failed"); + } + } else - { - if (PREDICT_FALSE(lb != 0)) - *lb = NO_LB_NAT; - mapping->fib_index = m->fib_index; - mapping->addr = m->local_addr; - /* Address only mapping doesn't change port */ - mapping->port = m->addr_only ? match.port - : clib_host_to_net_u16 (m->local_port); - } + { + if (PREDICT_FALSE (lb != 0)) + *lb = NO_LB_NAT; + mapping->fib_index = m->fib_index; + mapping->addr = m->local_addr; + /* Address only mapping doesn't change port */ + mapping->port = m->addr_only ? match.port + : clib_host_to_net_u16 (m->local_port); + } mapping->protocol = m->proto; } else @@ -2518,15 +2082,15 @@ get_local: mapping->addr = m->external_addr; /* Address only mapping doesn't change port */ mapping->port = m->addr_only ? match.port - : clib_host_to_net_u16 (m->external_port); + : clib_host_to_net_u16 (m->external_port); mapping->fib_index = sm->outside_fib_index; } end: - if (PREDICT_FALSE(is_addr_only != 0)) + if (PREDICT_FALSE (is_addr_only != 0)) *is_addr_only = m->addr_only; - if (PREDICT_FALSE(twice_nat != 0)) + if (PREDICT_FALSE (twice_nat != 0)) *twice_nat = m->twice_nat; return 0; @@ -2537,35 +2101,31 @@ snat_random_port (u16 min, u16 max) { snat_main_t *sm = &snat_main; return min + random_u32 (&sm->random_seed) / - (random_u32_max() / (max - min + 1) + 1); + (random_u32_max () / (max - min + 1) + 1); } int snat_alloc_outside_address_and_port (snat_address_t * addresses, - u32 fib_index, - u32 thread_index, - snat_session_key_t * k, - u32 * address_indexp, - u16 port_per_thread, - u32 snat_thread_index) + u32 fib_index, + u32 thread_index, + snat_session_key_t * k, + u16 port_per_thread, + u32 snat_thread_index) { snat_main_t *sm = &snat_main; - return sm->alloc_addr_and_port(addresses, fib_index, thread_index, k, - address_indexp, port_per_thread, - snat_thread_index); + return sm->alloc_addr_and_port (addresses, fib_index, thread_index, k, + port_per_thread, snat_thread_index); } static int nat_alloc_addr_and_port_default (snat_address_t * addresses, - u32 fib_index, - u32 thread_index, - snat_session_key_t * k, - u32 * address_indexp, - u16 port_per_thread, - u32 snat_thread_index) + u32 fib_index, + u32 thread_index, + snat_session_key_t * k, + u16 port_per_thread, u32 snat_thread_index) { - int i, gi = 0; + int i; snat_address_t *a, *ga = 0; u32 portnum; @@ -2573,7 +2133,7 @@ nat_alloc_addr_and_port_default (snat_address_t * addresses, { a = addresses + i; switch (k->protocol) - { + { #define _(N, j, n, s) \ case SNAT_PROTOCOL_##N: \ if (a->busy_##n##_ports_per_thread[thread_index] < port_per_thread) \ @@ -2592,23 +2152,21 @@ nat_alloc_addr_and_port_default (snat_address_t * addresses, a->busy_##n##_ports++; \ k->addr = a->addr; \ k->port = clib_host_to_net_u16(portnum); \ - *address_indexp = i; \ return 0; \ } \ } \ else if (a->fib_index == ~0) \ { \ ga = a; \ - gi = i; \ } \ } \ break; - foreach_snat_protocol + foreach_snat_protocol #undef _ - default: - nat_log_info ("unknown protocol"); - return 1; - } + default: + nat_log_info ("unknown protocol"); + return 1; + } } @@ -2631,7 +2189,6 @@ nat_alloc_addr_and_port_default (snat_address_t * addresses, a->busy_##n##_ports++; \ k->addr = a->addr; \ k->port = clib_host_to_net_u16(portnum); \ - *address_indexp = gi; \ return 0; \ } break; @@ -2644,18 +2201,16 @@ nat_alloc_addr_and_port_default (snat_address_t * addresses, } /* Totally out of translations to use... */ - snat_ipfix_logging_addresses_exhausted(0); + snat_ipfix_logging_addresses_exhausted (0); return 1; } static int nat_alloc_addr_and_port_mape (snat_address_t * addresses, - u32 fib_index, - u32 thread_index, - snat_session_key_t * k, - u32 * address_indexp, - u16 port_per_thread, - u32 snat_thread_index) + u32 fib_index, + u32 thread_index, + snat_session_key_t * k, + u16 port_per_thread, u32 snat_thread_index) { snat_main_t *sm = &snat_main; snat_address_t *a = addresses; @@ -2683,7 +2238,6 @@ nat_alloc_addr_and_port_mape (snat_address_t * addresses, a->busy_##n##_ports++; \ k->addr = a->addr; \ k->port = clib_host_to_net_u16 (portnum); \ - *address_indexp = i; \ return 0; \ } \ } \ @@ -2697,18 +2251,16 @@ nat_alloc_addr_and_port_mape (snat_address_t * addresses, exhausted: /* Totally out of translations to use... */ - snat_ipfix_logging_addresses_exhausted(0); + snat_ipfix_logging_addresses_exhausted (0); return 1; } static int nat_alloc_addr_and_port_range (snat_address_t * addresses, - u32 fib_index, - u32 thread_index, - snat_session_key_t * k, - u32 * address_indexp, - u16 port_per_thread, - u32 snat_thread_index) + u32 fib_index, + u32 thread_index, + snat_session_key_t * k, + u16 port_per_thread, u32 snat_thread_index) { snat_main_t *sm = &snat_main; snat_address_t *a = addresses; @@ -2734,7 +2286,6 @@ nat_alloc_addr_and_port_range (snat_address_t * addresses, a->busy_##n##_ports++; \ k->addr = a->addr; \ k->port = clib_host_to_net_u16 (portnum); \ - *address_indexp = i; \ return 0; \ } \ } \ @@ -2748,7 +2299,7 @@ nat_alloc_addr_and_port_range (snat_address_t * addresses, exhausted: /* Totally out of translations to use... */ - snat_ipfix_logging_addresses_exhausted(0); + snat_ipfix_logging_addresses_exhausted (0); return 1; } @@ -2766,7 +2317,7 @@ nat44_add_del_address_dpo (ip4_address_t addr, u8 is_add) { nat_dpo_create (DPO_PROTO_IP4, 0, &dpo_v4); fib_table_entry_special_dpo_add (0, &pfx, FIB_SOURCE_PLUGIN_HI, - FIB_ENTRY_FLAG_EXCLUSIVE, &dpo_v4); + FIB_ENTRY_FLAG_EXCLUSIVE, &dpo_v4); dpo_reset (&dpo_v4); } else @@ -2775,61 +2326,6 @@ nat44_add_del_address_dpo (ip4_address_t addr, u8 is_add) } } -uword -unformat_snat_protocol (unformat_input_t * input, va_list * args) -{ - u32 *r = va_arg (*args, u32 *); - - if (0); -#define _(N, i, n, s) else if (unformat (input, s)) *r = SNAT_PROTOCOL_##N; - foreach_snat_protocol -#undef _ - else - return 0; - return 1; -} - -u8 * -format_snat_protocol (u8 * s, va_list * args) -{ - u32 i = va_arg (*args, u32); - u8 *t = 0; - - switch (i) - { -#define _(N, j, n, str) case SNAT_PROTOCOL_##N: t = (u8 *) str; break; - foreach_snat_protocol -#undef _ - default: - s = format (s, "unknown"); - return s; - } - s = format (s, "%s", t); - return s; -} - -u8 * -format_nat_addr_and_port_alloc_alg (u8 * s, va_list * args) -{ - u32 i = va_arg (*args, u32); - u8 *t = 0; - - switch (i) - { -#define _(v, N, s) case NAT_ADDR_AND_PORT_ALLOC_ALG_##N: t = (u8 *) s; break; - foreach_nat_addr_and_port_alloc_alg -#undef _ - default: - s = format (s, "unknown"); - return s; - } - s = format (s, "%s", t); - return s; -} - -u8 * format_snat_key (u8 * s, va_list * args); -u8 * format_static_mapping_key (u8 * s, va_list * args); - u8 * format_session_kvp (u8 * s, va_list * args) { @@ -2852,7 +2348,7 @@ format_static_mapping_kvp (u8 * s, va_list * args) k.as_u64 = v->key; s = format (s, "%U static-mapping-index %llu", - format_static_mapping_key, &k, v->value); + format_static_mapping_key, &k, v->value); return s; } @@ -2866,7 +2362,7 @@ format_user_kvp (u8 * s, va_list * args) k.as_u64 = v->key; s = format (s, "%U fib %d user-index %llu", format_ip4_address, &k.addr, - k.fib_index, v->value); + k.fib_index, v->value); return s; } @@ -2880,10 +2376,11 @@ format_ed_session_kvp (u8 * s, va_list * args) k.as_u64[0] = v->key[0]; k.as_u64[1] = v->key[1]; - s = format (s, "local %U:%d remote %U:%d proto %U fib %d session-index %llu", - format_ip4_address, &k.l_addr, clib_net_to_host_u16 (k.l_port), - format_ip4_address, &k.r_addr, clib_net_to_host_u16 (k.r_port), - format_ip_protocol, k.proto, k.fib_index, v->value); + s = + format (s, "local %U:%d remote %U:%d proto %U fib %d session-index %llu", + format_ip4_address, &k.l_addr, clib_net_to_host_u16 (k.l_port), + format_ip4_address, &k.r_addr, clib_net_to_host_u16 (k.r_port), + format_ip_protocol, k.proto, k.fib_index, v->value); return s; } @@ -2897,7 +2394,7 @@ snat_get_worker_in2out_cb (ip4_header_t * ip0, u32 rx_fib_index0) next_worker_index = sm->first_worker_index; hash = ip0->src_address.as_u32 + (ip0->src_address.as_u32 >> 8) + - (ip0->src_address.as_u32 >> 16) + (ip0->src_address.as_u32 >>24); + (ip0->src_address.as_u32 >> 16) + (ip0->src_address.as_u32 >> 24); if (PREDICT_TRUE (is_pow2 (_vec_len (sm->workers)))) next_worker_index += sm->workers[hash & (_vec_len (sm->workers) - 1)]; @@ -2927,11 +2424,12 @@ snat_get_worker_out2in_cb (ip4_header_t * ip0, u32 rx_fib_index0) m_key.protocol = 0; m_key.fib_index = rx_fib_index0; kv.key = m_key.as_u64; - if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value)) - { - m = pool_elt_at_index (sm->static_mappings, value.value); - return m->workers[0]; - } + if (!clib_bihash_search_8_8 + (&sm->static_mapping_by_external, &kv, &value)) + { + m = pool_elt_at_index (sm->static_mappings, value.value); + return m->workers[0]; + } } proto = ip_proto_to_snat_proto (ip0->protocol); @@ -2951,7 +2449,7 @@ snat_get_worker_out2in_cb (ip4_header_t * ip0, u32 rx_fib_index0) ip0->fragment_id, ip0->protocol); if (reass && (reass->thread_index != (u32) ~ 0)) - return reass->thread_index; + return reass->thread_index; else return vlib_get_thread_index (); } @@ -2966,30 +2464,30 @@ snat_get_worker_out2in_cb (ip4_header_t * ip0, u32 rx_fib_index0) if (PREDICT_FALSE (ip0->protocol == IP_PROTOCOL_ICMP)) { - icmp46_header_t * icmp = (icmp46_header_t *) udp; - icmp_echo_header_t *echo = (icmp_echo_header_t *)(icmp + 1); + icmp46_header_t *icmp = (icmp46_header_t *) udp; + icmp_echo_header_t *echo = (icmp_echo_header_t *) (icmp + 1); if (!icmp_is_error_message (icmp)) - port = echo->identifier; + port = echo->identifier; else - { - ip4_header_t *inner_ip = (ip4_header_t *)(echo + 1); - proto = ip_proto_to_snat_proto (inner_ip->protocol); - void *l4_header = ip4_next_header (inner_ip); - switch (proto) - { - case SNAT_PROTOCOL_ICMP: - icmp = (icmp46_header_t*)l4_header; - echo = (icmp_echo_header_t *)(icmp + 1); - port = echo->identifier; - break; - case SNAT_PROTOCOL_UDP: - case SNAT_PROTOCOL_TCP: - port = ((tcp_udp_header_t*)l4_header)->src_port; - break; - default: - return vlib_get_thread_index (); - } - } + { + ip4_header_t *inner_ip = (ip4_header_t *) (echo + 1); + proto = ip_proto_to_snat_proto (inner_ip->protocol); + void *l4_header = ip4_next_header (inner_ip); + switch (proto) + { + case SNAT_PROTOCOL_ICMP: + icmp = (icmp46_header_t *) l4_header; + echo = (icmp_echo_header_t *) (icmp + 1); + port = echo->identifier; + break; + case SNAT_PROTOCOL_UDP: + case SNAT_PROTOCOL_TCP: + port = ((tcp_udp_header_t *) l4_header)->src_port; + break; + default: + return vlib_get_thread_index (); + } + } } /* try static mappings with port */ @@ -3000,11 +2498,12 @@ snat_get_worker_out2in_cb (ip4_header_t * ip0, u32 rx_fib_index0) m_key.protocol = proto; m_key.fib_index = rx_fib_index0; kv.key = m_key.as_u64; - if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value)) - { - m = pool_elt_at_index (sm->static_mappings, value.value); - return m->workers[0]; - } + if (!clib_bihash_search_8_8 + (&sm->static_mapping_by_external, &kv, &value)) + { + m = pool_elt_at_index (sm->static_mappings, value.value); + return m->workers[0]; + } } /* worker by outside port */ @@ -3029,11 +2528,12 @@ nat44_ed_get_worker_out2in_cb (ip4_header_t * ip, u32 rx_fib_index) if (PREDICT_FALSE (pool_elts (sm->static_mappings))) { make_sm_kv (&kv, &ip->dst_address, 0, rx_fib_index, 0); - if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value)) - { - m = pool_elt_at_index (sm->static_mappings, value.value); - return m->workers[0]; - } + if (!clib_bihash_search_8_8 + (&sm->static_mapping_by_external, &kv, &value)) + { + m = pool_elt_at_index (sm->static_mappings, value.value); + return m->workers[0]; + } } proto = ip_proto_to_snat_proto (ip->protocol); @@ -3050,51 +2550,52 @@ nat44_ed_get_worker_out2in_cb (ip4_header_t * ip, u32 rx_fib_index) if (PREDICT_FALSE (ip->protocol == IP_PROTOCOL_ICMP)) { - icmp46_header_t * icmp = (icmp46_header_t *) udp; - icmp_echo_header_t *echo = (icmp_echo_header_t *)(icmp + 1); + icmp46_header_t *icmp = (icmp46_header_t *) udp; + icmp_echo_header_t *echo = (icmp_echo_header_t *) (icmp + 1); if (!icmp_is_error_message (icmp)) - port = echo->identifier; + port = echo->identifier; else - { - ip4_header_t *inner_ip = (ip4_header_t *)(echo + 1); - proto = ip_proto_to_snat_proto (inner_ip->protocol); - void *l4_header = ip4_next_header (inner_ip); - switch (proto) - { - case SNAT_PROTOCOL_ICMP: - icmp = (icmp46_header_t*)l4_header; - echo = (icmp_echo_header_t *)(icmp + 1); - port = echo->identifier; - break; - case SNAT_PROTOCOL_UDP: - case SNAT_PROTOCOL_TCP: - port = ((tcp_udp_header_t*)l4_header)->src_port; - break; - default: - return vlib_get_thread_index (); - } - } + { + ip4_header_t *inner_ip = (ip4_header_t *) (echo + 1); + proto = ip_proto_to_snat_proto (inner_ip->protocol); + void *l4_header = ip4_next_header (inner_ip); + switch (proto) + { + case SNAT_PROTOCOL_ICMP: + icmp = (icmp46_header_t *) l4_header; + echo = (icmp_echo_header_t *) (icmp + 1); + port = echo->identifier; + break; + case SNAT_PROTOCOL_UDP: + case SNAT_PROTOCOL_TCP: + port = ((tcp_udp_header_t *) l4_header)->src_port; + break; + default: + return vlib_get_thread_index (); + } + } } /* try static mappings with port */ if (PREDICT_FALSE (pool_elts (sm->static_mappings))) { make_sm_kv (&kv, &ip->dst_address, proto, rx_fib_index, - clib_net_to_host_u16 (port)); - if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value)) - { - m = pool_elt_at_index (sm->static_mappings, value.value); - if (!vec_len(m->locals)) - return m->workers[0]; + clib_net_to_host_u16 (port)); + if (!clib_bihash_search_8_8 + (&sm->static_mapping_by_external, &kv, &value)) + { + m = pool_elt_at_index (sm->static_mappings, value.value); + if (!vec_len (m->locals)) + return m->workers[0]; - hash = ip->src_address.as_u32 + (ip->src_address.as_u32 >> 8) + - (ip->src_address.as_u32 >> 16) + (ip->src_address.as_u32 >>24); + hash = ip->src_address.as_u32 + (ip->src_address.as_u32 >> 8) + + (ip->src_address.as_u32 >> 16) + (ip->src_address.as_u32 >> 24); - if (PREDICT_TRUE (is_pow2 (_vec_len (m->workers)))) - return m->workers[hash & (_vec_len (m->workers) - 1)]; - else - return m->workers[hash % _vec_len (m->workers)]; - } + if (PREDICT_TRUE (is_pow2 (_vec_len (m->workers)))) + return m->workers[hash & (_vec_len (m->workers) - 1)]; + else + return m->workers[hash % _vec_len (m->workers)]; + } } /* worker by outside port */ @@ -3108,18 +2609,18 @@ nat44_ed_get_worker_out2in_cb (ip4_header_t * ip, u32 rx_fib_index) static clib_error_t * snat_config (vlib_main_t * vm, unformat_input_t * input) { - snat_main_t * sm = &snat_main; - nat66_main_t * nm = &nat66_main; + snat_main_t *sm = &snat_main; + nat66_main_t *nm = &nat66_main; u32 translation_buckets = 1024; - u32 translation_memory_size = 128<<20; + u32 translation_memory_size = 128 << 20; u32 user_buckets = 128; - u32 user_memory_size = 64<<20; + u32 user_memory_size = 64 << 20; u32 max_translations_per_user = 100; u32 outside_vrf_id = 0; u32 outside_ip6_vrf_id = 0; u32 inside_vrf_id = 0; u32 static_mapping_buckets = 1024; - u32 static_mapping_memory_size = 64<<20; + u32 static_mapping_memory_size = 64 << 20; u32 nat64_bib_buckets = 1024; u32 nat64_bib_memory_size = 128 << 20; u32 nat64_st_buckets = 2048; @@ -3127,7 +2628,7 @@ snat_config (vlib_main_t * vm, unformat_input_t * input) u8 static_mapping_only = 0; u8 static_mapping_connection_tracking = 0; snat_main_per_thread_data_t *tsm; - dslite_main_t * dm = &dslite_main; + dslite_main_t *dm = &dslite_main; sm->deterministic = 0; sm->out2in_dpo = 0; @@ -3135,68 +2636,66 @@ snat_config (vlib_main_t * vm, unformat_input_t * input) while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { - if (unformat (input, "translation hash buckets %d", &translation_buckets)) - ; + if (unformat + (input, "translation hash buckets %d", &translation_buckets)) + ; else if (unformat (input, "translation hash memory %d", - &translation_memory_size)); + &translation_memory_size)); else if (unformat (input, "user hash buckets %d", &user_buckets)) - ; - else if (unformat (input, "user hash memory %d", - &user_memory_size)) - ; + ; + else if (unformat (input, "user hash memory %d", &user_memory_size)) + ; else if (unformat (input, "max translations per user %d", - &max_translations_per_user)) - ; - else if (unformat (input, "outside VRF id %d", - &outside_vrf_id)) - ; - else if (unformat (input, "outside ip6 VRF id %d", - &outside_ip6_vrf_id)) - ; - else if (unformat (input, "inside VRF id %d", - &inside_vrf_id)) - ; + &max_translations_per_user)) + ; + else if (unformat (input, "outside VRF id %d", &outside_vrf_id)) + ; + else if (unformat (input, "outside ip6 VRF id %d", &outside_ip6_vrf_id)) + ; + else if (unformat (input, "inside VRF id %d", &inside_vrf_id)) + ; else if (unformat (input, "static mapping only")) - { - static_mapping_only = 1; - if (unformat (input, "connection tracking")) - static_mapping_connection_tracking = 1; - } + { + static_mapping_only = 1; + if (unformat (input, "connection tracking")) + static_mapping_connection_tracking = 1; + } else if (unformat (input, "deterministic")) - sm->deterministic = 1; + sm->deterministic = 1; else if (unformat (input, "nat64 bib hash buckets %d", - &nat64_bib_buckets)) - ; + &nat64_bib_buckets)) + ; else if (unformat (input, "nat64 bib hash memory %d", - &nat64_bib_memory_size)) - ; - else if (unformat (input, "nat64 st hash buckets %d", &nat64_st_buckets)) - ; + &nat64_bib_memory_size)) + ; + else + if (unformat (input, "nat64 st hash buckets %d", &nat64_st_buckets)) + ; else if (unformat (input, "nat64 st hash memory %d", - &nat64_st_memory_size)) - ; + &nat64_st_memory_size)) + ; else if (unformat (input, "out2in dpo")) - sm->out2in_dpo = 1; + sm->out2in_dpo = 1; else if (unformat (input, "dslite ce")) - dslite_set_ce(dm, 1); + dslite_set_ce (dm, 1); else if (unformat (input, "endpoint-dependent")) - sm->endpoint_dependent = 1; + sm->endpoint_dependent = 1; else return clib_error_return (0, "unknown input '%U'", format_unformat_error, input); } if (sm->deterministic && sm->endpoint_dependent) - return clib_error_return ( - 0, "deterministic and endpoint-dependent modes are mutually exclusive"); + return clib_error_return (0, + "deterministic and endpoint-dependent modes are mutually exclusive"); if (static_mapping_only && (sm->deterministic || sm->endpoint_dependent)) - return clib_error_return ( - 0, "static mapping only mode available only for simple nat"); + return clib_error_return (0, + "static mapping only mode available only for simple nat"); if (sm->out2in_dpo && (sm->deterministic || sm->endpoint_dependent)) - return clib_error_return ( - 0, "out2in dpo mode available only for simple nat"); + return clib_error_return (0, + "out2in dpo mode available only for simple nat"); /* for show commands, etc. */ sm->translation_buckets = translation_buckets; @@ -3208,21 +2707,21 @@ snat_config (vlib_main_t * vm, unformat_input_t * input) sm->max_translations_per_user = max_translations_per_user; sm->outside_vrf_id = outside_vrf_id; sm->outside_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, - outside_vrf_id, - FIB_SOURCE_PLUGIN_HI); + outside_vrf_id, + FIB_SOURCE_PLUGIN_HI); nm->outside_vrf_id = outside_ip6_vrf_id; nm->outside_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, - outside_ip6_vrf_id, - FIB_SOURCE_PLUGIN_HI); + outside_ip6_vrf_id, + FIB_SOURCE_PLUGIN_HI); sm->inside_vrf_id = inside_vrf_id; sm->inside_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, - inside_vrf_id, - FIB_SOURCE_PLUGIN_HI); + inside_vrf_id, + FIB_SOURCE_PLUGIN_HI); sm->static_mapping_only = static_mapping_only; sm->static_mapping_connection_tracking = static_mapping_connection_tracking; - nat64_set_hash(nat64_bib_buckets, nat64_bib_memory_size, nat64_st_buckets, - nat64_st_memory_size); + nat64_set_hash (nat64_bib_buckets, nat64_bib_memory_size, nat64_st_buckets, + nat64_st_memory_size); if (sm->deterministic) { @@ -3235,29 +2734,30 @@ snat_config (vlib_main_t * vm, unformat_input_t * input) else { if (sm->endpoint_dependent) - { - sm->worker_in2out_cb = snat_get_worker_in2out_cb; - sm->worker_out2in_cb = nat44_ed_get_worker_out2in_cb; - sm->in2out_node_index = nat44_ed_in2out_node.index; - sm->in2out_output_node_index = nat44_ed_in2out_output_node.index; - sm->out2in_node_index = nat44_ed_out2in_node.index; - sm->icmp_match_in2out_cb = icmp_match_in2out_ed; - sm->icmp_match_out2in_cb = icmp_match_out2in_ed; - nat_affinity_init (vm); - } + { + sm->worker_in2out_cb = snat_get_worker_in2out_cb; + sm->worker_out2in_cb = nat44_ed_get_worker_out2in_cb; + sm->in2out_node_index = nat44_ed_in2out_node.index; + sm->in2out_output_node_index = nat44_ed_in2out_output_node.index; + sm->out2in_node_index = nat44_ed_out2in_node.index; + sm->icmp_match_in2out_cb = icmp_match_in2out_ed; + sm->icmp_match_out2in_cb = icmp_match_out2in_ed; + nat_affinity_init (vm); + } else - { - sm->worker_in2out_cb = snat_get_worker_in2out_cb; - sm->worker_out2in_cb = snat_get_worker_out2in_cb; - sm->in2out_node_index = snat_in2out_node.index; - sm->in2out_output_node_index = snat_in2out_output_node.index; - sm->out2in_node_index = snat_out2in_node.index; - sm->icmp_match_in2out_cb = icmp_match_in2out_slow; - sm->icmp_match_out2in_cb = icmp_match_out2in_slow; - } + { + sm->worker_in2out_cb = snat_get_worker_in2out_cb; + sm->worker_out2in_cb = snat_get_worker_out2in_cb; + sm->in2out_node_index = snat_in2out_node.index; + sm->in2out_output_node_index = snat_in2out_output_node.index; + sm->out2in_node_index = snat_out2in_node.index; + sm->icmp_match_in2out_cb = icmp_match_in2out_slow; + sm->icmp_match_out2in_cb = icmp_match_out2in_slow; + } if (!static_mapping_only || - (static_mapping_only && static_mapping_connection_tracking)) - { + (static_mapping_only && static_mapping_connection_tracking)) + { + /* *INDENT-OFF* */ vec_foreach (tsm, sm->per_thread_data) { if (sm->endpoint_dependent) @@ -3294,24 +2794,26 @@ snat_config (vlib_main_t * vm, unformat_input_t * input) clib_bihash_set_kvp_format_fn_8_8 (&tsm->user_hash, format_user_kvp); } + /* *INDENT-ON* */ - } + } else - { - sm->icmp_match_in2out_cb = icmp_match_in2out_fast; - sm->icmp_match_out2in_cb = icmp_match_out2in_fast; - } + { + sm->icmp_match_in2out_cb = icmp_match_in2out_fast; + sm->icmp_match_out2in_cb = icmp_match_out2in_fast; + } clib_bihash_init_8_8 (&sm->static_mapping_by_local, - "static_mapping_by_local", static_mapping_buckets, - static_mapping_memory_size); + "static_mapping_by_local", static_mapping_buckets, + static_mapping_memory_size); clib_bihash_set_kvp_format_fn_8_8 (&sm->static_mapping_by_local, - format_static_mapping_kvp); + format_static_mapping_kvp); clib_bihash_init_8_8 (&sm->static_mapping_by_external, - "static_mapping_by_external", static_mapping_buckets, - static_mapping_memory_size); + "static_mapping_by_external", + static_mapping_buckets, + static_mapping_memory_size); clib_bihash_set_kvp_format_fn_8_8 (&sm->static_mapping_by_external, - format_static_mapping_kvp); + format_static_mapping_kvp); } return 0; @@ -3319,240 +2821,13 @@ snat_config (vlib_main_t * vm, unformat_input_t * input) VLIB_CONFIG_FUNCTION (snat_config, "nat"); -u8 * format_snat_session_state (u8 * s, va_list * args) -{ - u32 i = va_arg (*args, u32); - u8 *t = 0; - - switch (i) - { -#define _(v, N, str) case SNAT_SESSION_##N: t = (u8 *) str; break; - foreach_snat_session_state -#undef _ - default: - t = format (t, "unknown"); - } - s = format (s, "%s", t); - return s; -} - -u8 * format_snat_key (u8 * s, va_list * args) -{ - snat_session_key_t * key = va_arg (*args, snat_session_key_t *); - - s = format (s, "%U proto %U port %d fib %d", - format_ip4_address, &key->addr, - format_snat_protocol, key->protocol, - clib_net_to_host_u16 (key->port), key->fib_index); - return s; -} - -u8 * format_static_mapping_key (u8 * s, va_list * args) -{ - snat_session_key_t * key = va_arg (*args, snat_session_key_t *); - - s = format (s, "%U proto %U port %d fib %d", - format_ip4_address, &key->addr, - format_snat_protocol, key->protocol, - key->port, key->fib_index); - return s; -} - -u8 * format_snat_session (u8 * s, va_list * args) -{ - snat_main_per_thread_data_t * sm = va_arg (*args, snat_main_per_thread_data_t *); - snat_session_t * sess = va_arg (*args, snat_session_t *); - - if (snat_is_unk_proto_session (sess)) - { - s = format (s, " i2o %U proto %u fib %u\n", - format_ip4_address, &sess->in2out.addr, - clib_net_to_host_u16 (sess->in2out.port), - sess->in2out.fib_index); - s = format (s, " o2i %U proto %u fib %u\n", - format_ip4_address, &sess->out2in.addr, - clib_net_to_host_u16 (sess->out2in.port), - sess->out2in.fib_index); - } - else - { - s = format (s, " i2o %U\n", format_snat_key, &sess->in2out); - s = format (s, " o2i %U\n", format_snat_key, &sess->out2in); - } - if (is_ed_session (sess) || is_fwd_bypass_session (sess)) - { - if (is_twice_nat_session (sess)) - { - s = format (s, " external host o2i %U:%d i2o %U:%d\n", - format_ip4_address, &sess->ext_host_addr, - clib_net_to_host_u16 (sess->ext_host_port), - format_ip4_address, &sess->ext_host_nat_addr, - clib_net_to_host_u16 (sess->ext_host_nat_port)); - } - else - { - if (sess->ext_host_addr.as_u32) - s = format (s, " external host %U:%u\n", - format_ip4_address, &sess->ext_host_addr, - clib_net_to_host_u16 (sess->ext_host_port)); - } - } - s = format (s, " index %llu\n", sess - sm->sessions); - s = format (s, " last heard %.2f\n", sess->last_heard); - s = format (s, " total pkts %d, total bytes %lld\n", - sess->total_pkts, sess->total_bytes); - if (snat_is_session_static (sess)) - s = format (s, " static translation\n"); - else - s = format (s, " dynamic translation\n"); - if (is_fwd_bypass_session (sess)) - s = format (s, " forwarding-bypass\n"); - if (is_lb_session (sess)) - s = format (s, " load-balancing\n"); - if (is_twice_nat_session (sess)) - s = format (s, " twice-nat\n"); - - return s; -} - -u8 * format_snat_user (u8 * s, va_list * args) -{ - snat_main_per_thread_data_t * sm = va_arg (*args, snat_main_per_thread_data_t *); - snat_user_t * u = va_arg (*args, snat_user_t *); - int verbose = va_arg (*args, int); - dlist_elt_t * head, * elt; - u32 elt_index, head_index; - u32 session_index; - snat_session_t * sess; - - s = format (s, "%U: %d dynamic translations, %d static translations\n", - format_ip4_address, &u->addr, u->nsessions, u->nstaticsessions); - - if (verbose == 0) - return s; - - if (u->nsessions || u->nstaticsessions) - { - head_index = u->sessions_per_user_list_head_index; - head = pool_elt_at_index (sm->list_pool, head_index); - - elt_index = head->next; - elt = pool_elt_at_index (sm->list_pool, elt_index); - session_index = elt->value; - - while (session_index != ~0) - { - sess = pool_elt_at_index (sm->sessions, session_index); - - s = format (s, " %U\n", format_snat_session, sm, sess); - - elt_index = elt->next; - elt = pool_elt_at_index (sm->list_pool, elt_index); - session_index = elt->value; - } - } - - return s; -} - -u8 * format_snat_static_mapping (u8 * s, va_list * args) -{ - snat_static_mapping_t *m = va_arg (*args, snat_static_mapping_t *); - nat44_lb_addr_port_t *local; - - if (m->addr_only) - s = format (s, "local %U external %U vrf %d %s %s", - format_ip4_address, &m->local_addr, - format_ip4_address, &m->external_addr, - m->vrf_id, - m->twice_nat == TWICE_NAT ? "twice-nat" : - m->twice_nat == TWICE_NAT_SELF ? "self-twice-nat" : "", - m->out2in_only ? "out2in-only" : ""); - else - { - if (vec_len (m->locals)) - { - s = format (s, "%U external %U:%d %s %s", - format_snat_protocol, m->proto, - format_ip4_address, &m->external_addr, m->external_port, - m->twice_nat == TWICE_NAT ? "twice-nat" : - m->twice_nat == TWICE_NAT_SELF ? "self-twice-nat" : "", - m->out2in_only ? "out2in-only" : ""); - vec_foreach (local, m->locals) - s = format (s, "\n local %U:%d vrf %d probability %d\%", - format_ip4_address, &local->addr, local->port, - local->vrf_id, local->probability); - } - else - s = format (s, "%U local %U:%d external %U:%d vrf %d %s %s", - format_snat_protocol, m->proto, - format_ip4_address, &m->local_addr, m->local_port, - format_ip4_address, &m->external_addr, m->external_port, - m->vrf_id, - m->twice_nat == TWICE_NAT ? "twice-nat" : - m->twice_nat == TWICE_NAT_SELF ? "self-twice-nat" : "", - m->out2in_only ? "out2in-only" : ""); - } - return s; -} - -u8 * format_snat_static_map_to_resolve (u8 * s, va_list * args) -{ - snat_static_map_resolve_t *m = va_arg (*args, snat_static_map_resolve_t *); - vnet_main_t *vnm = vnet_get_main(); - - if (m->addr_only) - s = format (s, "local %U external %U vrf %d", - format_ip4_address, &m->l_addr, - format_vnet_sw_if_index_name, vnm, m->sw_if_index, - m->vrf_id); - else - s = format (s, "%U local %U:%d external %U:%d vrf %d", - format_snat_protocol, m->proto, - format_ip4_address, &m->l_addr, m->l_port, - format_vnet_sw_if_index_name, vnm, m->sw_if_index, - m->e_port, m->vrf_id); - - return s; -} - -u8 * format_det_map_ses (u8 * s, va_list * args) -{ - snat_det_map_t * det_map = va_arg (*args, snat_det_map_t *); - ip4_address_t in_addr, out_addr; - u32 in_offset, out_offset; - snat_det_session_t * ses = va_arg (*args, snat_det_session_t *); - u32 * i = va_arg (*args, u32 *); - - u32 user_index = *i / SNAT_DET_SES_PER_USER; - in_addr.as_u32 = clib_host_to_net_u32 ( - clib_net_to_host_u32(det_map->in_addr.as_u32) + user_index); - in_offset = clib_net_to_host_u32(in_addr.as_u32) - - clib_net_to_host_u32(det_map->in_addr.as_u32); - out_offset = in_offset / det_map->sharing_ratio; - out_addr.as_u32 = clib_host_to_net_u32( - clib_net_to_host_u32(det_map->out_addr.as_u32) + out_offset); - s = format (s, "in %U:%d out %U:%d external host %U:%d state: %U expire: %d\n", - format_ip4_address, &in_addr, - clib_net_to_host_u16 (ses->in_port), - format_ip4_address, &out_addr, - clib_net_to_host_u16 (ses->out.out_port), - format_ip4_address, &ses->out.ext_host_addr, - clib_net_to_host_u16 (ses->out.ext_host_port), - format_snat_session_state, ses->state, - ses->expire); - - return s; -} - static void nat_ip4_add_del_addr_only_sm_cb (ip4_main_t * im, - uword opaque, - u32 sw_if_index, - ip4_address_t * address, - u32 address_length, - u32 if_address_index, - u32 is_delete) + uword opaque, + u32 sw_if_index, + ip4_address_t * address, + u32 address_length, + u32 if_address_index, u32 is_delete) { snat_main_t *sm = &snat_main; snat_static_map_resolve_t *rp; @@ -3566,9 +2841,9 @@ nat_ip4_add_del_addr_only_sm_cb (ip4_main_t * im, { rp = sm->to_resolve + i; if (rp->addr_only == 0) - continue; + continue; if (rp->sw_if_index == sw_if_index) - goto match; + goto match; } return; @@ -3588,12 +2863,12 @@ match: { /* Don't trip over lease renewal, static config */ if (m) - return; + return; } else { if (!m) - return; + return; } /* Indetity mapping? */ @@ -3603,27 +2878,23 @@ match: l_addr.as_u32 = rp->l_addr.as_u32; /* Add the static mapping */ rv = snat_add_static_mapping (l_addr, - address[0], - rp->l_port, - rp->e_port, - rp->vrf_id, - rp->addr_only, - ~0 /* sw_if_index */, - rp->proto, - !is_delete, - 0, 0, rp->tag); + address[0], + rp->l_port, + rp->e_port, + rp->vrf_id, + rp->addr_only, ~0 /* sw_if_index */ , + rp->proto, !is_delete, 0, 0, rp->tag); if (rv) nat_log_notice ("snat_add_static_mapping returned %d", rv); } static void snat_ip4_add_del_interface_address_cb (ip4_main_t * im, - uword opaque, - u32 sw_if_index, - ip4_address_t * address, - u32 address_length, - u32 if_address_index, - u32 is_delete) + uword opaque, + u32 sw_if_index, + ip4_address_t * address, + u32 address_length, + u32 if_address_index, u32 is_delete) { snat_main_t *sm = &snat_main; snat_static_map_resolve_t *rp; @@ -3633,18 +2904,18 @@ snat_ip4_add_del_interface_address_cb (ip4_main_t * im, u8 twice_nat = 0; snat_address_t *addresses = sm->addresses; - for (i = 0; i < vec_len(sm->auto_add_sw_if_indices); i++) + for (i = 0; i < vec_len (sm->auto_add_sw_if_indices); i++) { if (sw_if_index == sm->auto_add_sw_if_indices[i]) - goto match; + goto match; } - for (i = 0; i < vec_len(sm->auto_add_sw_if_indices_twice_nat); i++) + for (i = 0; i < vec_len (sm->auto_add_sw_if_indices_twice_nat); i++) { twice_nat = 1; addresses = sm->twice_nat_addresses; if (sw_if_index == sm->auto_add_sw_if_indices_twice_nat[i]) - goto match; + goto match; } return; @@ -3653,98 +2924,99 @@ match: if (!is_delete) { /* Don't trip over lease renewal, static config */ - for (j = 0; j < vec_len(addresses); j++) - if (addresses[j].addr.as_u32 == address->as_u32) - return; + for (j = 0; j < vec_len (addresses); j++) + if (addresses[j].addr.as_u32 == address->as_u32) + return; (void) snat_add_address (sm, address, ~0, twice_nat); /* Scan static map resolution vector */ for (j = 0; j < vec_len (sm->to_resolve); j++) - { - rp = sm->to_resolve + j; - if (rp->addr_only) - continue; - /* On this interface? */ - if (rp->sw_if_index == sw_if_index) - { - /* Indetity mapping? */ - if (rp->l_addr.as_u32 == 0) - l_addr.as_u32 = address[0].as_u32; - else - l_addr.as_u32 = rp->l_addr.as_u32; - /* Add the static mapping */ - rv = snat_add_static_mapping (l_addr, - address[0], - rp->l_port, - rp->e_port, - rp->vrf_id, - rp->addr_only, - ~0 /* sw_if_index */, - rp->proto, - rp->is_add, - 0, 0, rp->tag); - if (rv) - nat_log_notice ("snat_add_static_mapping returned %d", rv); - } - } + { + rp = sm->to_resolve + j; + if (rp->addr_only) + continue; + /* On this interface? */ + if (rp->sw_if_index == sw_if_index) + { + /* Indetity mapping? */ + if (rp->l_addr.as_u32 == 0) + l_addr.as_u32 = address[0].as_u32; + else + l_addr.as_u32 = rp->l_addr.as_u32; + /* Add the static mapping */ + rv = snat_add_static_mapping (l_addr, + address[0], + rp->l_port, + rp->e_port, + rp->vrf_id, + rp->addr_only, + ~0 /* sw_if_index */ , + rp->proto, + rp->is_add, 0, 0, rp->tag); + if (rv) + nat_log_notice ("snat_add_static_mapping returned %d", rv); + } + } return; } else { - (void) snat_del_address(sm, address[0], 1, twice_nat); + (void) snat_del_address (sm, address[0], 1, twice_nat); return; } } -int snat_add_interface_address (snat_main_t *sm, u32 sw_if_index, int is_del, - u8 twice_nat) +int +snat_add_interface_address (snat_main_t * sm, u32 sw_if_index, int is_del, + u8 twice_nat) { - ip4_main_t * ip4_main = sm->ip4_main; - ip4_address_t * first_int_addr; + ip4_main_t *ip4_main = sm->ip4_main; + ip4_address_t *first_int_addr; snat_static_map_resolve_t *rp; u32 *indices_to_delete = 0; int i, j; u32 *auto_add_sw_if_indices = - twice_nat ? sm->auto_add_sw_if_indices_twice_nat : sm->auto_add_sw_if_indices; + twice_nat ? sm-> + auto_add_sw_if_indices_twice_nat : sm->auto_add_sw_if_indices; - first_int_addr = ip4_interface_first_address (ip4_main, sw_if_index, - 0 /* just want the address*/); + first_int_addr = ip4_interface_first_address (ip4_main, sw_if_index, 0 /* just want the address */ + ); - for (i = 0; i < vec_len(auto_add_sw_if_indices); i++) + for (i = 0; i < vec_len (auto_add_sw_if_indices); i++) { if (auto_add_sw_if_indices[i] == sw_if_index) - { - if (is_del) - { - /* if have address remove it */ - if (first_int_addr) - (void) snat_del_address (sm, first_int_addr[0], 1, twice_nat); - else - { - for (j = 0; j < vec_len (sm->to_resolve); j++) - { - rp = sm->to_resolve + j; - if (rp->sw_if_index == sw_if_index) - vec_add1 (indices_to_delete, j); - } - if (vec_len(indices_to_delete)) - { - for (j = vec_len(indices_to_delete)-1; j >= 0; j--) - vec_del1(sm->to_resolve, j); - vec_free(indices_to_delete); - } - } - if (twice_nat) - vec_del1(sm->auto_add_sw_if_indices_twice_nat, i); - else - vec_del1(sm->auto_add_sw_if_indices, i); - } - else - return VNET_API_ERROR_VALUE_EXIST; + { + if (is_del) + { + /* if have address remove it */ + if (first_int_addr) + (void) snat_del_address (sm, first_int_addr[0], 1, twice_nat); + else + { + for (j = 0; j < vec_len (sm->to_resolve); j++) + { + rp = sm->to_resolve + j; + if (rp->sw_if_index == sw_if_index) + vec_add1 (indices_to_delete, j); + } + if (vec_len (indices_to_delete)) + { + for (j = vec_len (indices_to_delete) - 1; j >= 0; j--) + vec_del1 (sm->to_resolve, j); + vec_free (indices_to_delete); + } + } + if (twice_nat) + vec_del1 (sm->auto_add_sw_if_indices_twice_nat, i); + else + vec_del1 (sm->auto_add_sw_if_indices, i); + } + else + return VNET_API_ERROR_VALUE_EXIST; - return 0; - } + return 0; + } } if (is_del) @@ -3752,20 +3024,20 @@ int snat_add_interface_address (snat_main_t *sm, u32 sw_if_index, int is_del, /* add to the auto-address list */ if (twice_nat) - vec_add1(sm->auto_add_sw_if_indices_twice_nat, sw_if_index); + vec_add1 (sm->auto_add_sw_if_indices_twice_nat, sw_if_index); else - vec_add1(sm->auto_add_sw_if_indices, sw_if_index); + vec_add1 (sm->auto_add_sw_if_indices, sw_if_index); /* If the address is already bound - or static - add it now */ if (first_int_addr) - (void) snat_add_address (sm, first_int_addr, ~0, twice_nat); + (void) snat_add_address (sm, first_int_addr, ~0, twice_nat); return 0; } int -nat44_del_session (snat_main_t *sm, ip4_address_t *addr, u16 port, - snat_protocol_t proto, u32 vrf_id, int is_in) +nat44_del_session (snat_main_t * sm, ip4_address_t * addr, u16 port, + snat_protocol_t proto, u32 vrf_id, int is_in) { snat_main_per_thread_data_t *tsm; clib_bihash_kv_8_8_t kv, value; @@ -3795,7 +3067,7 @@ nat44_del_session (snat_main_t *sm, ip4_address_t *addr, u16 port, if (!clib_bihash_search_8_8 (t, &kv, &value)) { if (pool_is_free_index (tsm->sessions, value.value)) - return VNET_API_ERROR_UNSPECIFIED; + return VNET_API_ERROR_UNSPECIFIED; s = pool_elt_at_index (tsm->sessions, value.value); nat_free_session_data (sm, s, tsm - sm->per_thread_data); @@ -3807,9 +3079,9 @@ nat44_del_session (snat_main_t *sm, ip4_address_t *addr, u16 port, } int -nat44_del_ed_session (snat_main_t *sm, ip4_address_t *addr, u16 port, - ip4_address_t *eh_addr, u16 eh_port, u8 proto, - u32 vrf_id, int is_in) +nat44_del_ed_session (snat_main_t * sm, ip4_address_t * addr, u16 port, + ip4_address_t * eh_addr, u16 eh_port, u8 proto, + u32 vrf_id, int is_in) { ip4_header_t ip; clib_bihash_16_8_t *t; @@ -3836,7 +3108,7 @@ nat44_del_ed_session (snat_main_t *sm, ip4_address_t *addr, u16 port, key.l_port = clib_host_to_net_u16 (port); key.r_port = clib_host_to_net_u16 (eh_port); key.proto = proto; - key.fib_index = clib_host_to_net_u32 (fib_index); + key.fib_index = fib_index; kv.key[0] = key.as_u64[0]; kv.key[1] = key.as_u64[1]; if (clib_bihash_search_16_8 (t, &kv, &value)) @@ -3882,3 +3154,10 @@ nat_set_alloc_addr_and_port_default (void) sm->alloc_addr_and_port = nat_alloc_addr_and_port_default; } +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |