diff options
Diffstat (limited to 'src/plugins/nat/out2in_ed.c')
-rw-r--r-- | src/plugins/nat/out2in_ed.c | 219 |
1 files changed, 120 insertions, 99 deletions
diff --git a/src/plugins/nat/out2in_ed.c b/src/plugins/nat/out2in_ed.c index 5d759fbfad5..3d081e15313 100644 --- a/src/plugins/nat/out2in_ed.c +++ b/src/plugins/nat/out2in_ed.c @@ -103,8 +103,7 @@ nat44_o2i_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg) u32 fib_index; clib_bihash_kv_16_8_t ed_kv; int i; - snat_address_t *a; - snat_session_key_t key; + //snat_address_t *a; snat_main_per_thread_data_t *tsm = vec_elt_at_index (sm->per_thread_data, ctx->thread_index); @@ -123,7 +122,7 @@ nat44_o2i_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg) } else { - proto = nat_proto_to_ip_proto (s->in2out.protocol); + proto = nat_proto_to_ip_proto (s->nat_proto); l_port = s->in2out.port; r_port = s->ext_host_port; } @@ -132,8 +131,7 @@ nat44_o2i_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg) r_addr = &s->ext_host_nat_addr; r_port = s->ext_host_nat_port; } - make_ed_kv (l_addr, r_addr, proto, fib_index, l_port, r_port, ~0, ~0, - &ed_kv); + init_ed_k (&ed_kv, *l_addr, l_port, *r_addr, r_port, fib_index, proto); if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &ed_kv, 0)) nat_elog_warn ("in2out_ed key del failed"); @@ -143,7 +141,7 @@ nat44_o2i_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg) snat_ipfix_logging_nat44_ses_delete (ctx->thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32, - s->in2out.protocol, + s->nat_proto, s->in2out.port, s->out2in.port, s->in2out.fib_index); @@ -153,26 +151,27 @@ nat44_o2i_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg) &s->ext_host_nat_addr, s->ext_host_nat_port, &s->out2in.addr, s->out2in.port, &s->ext_host_addr, s->ext_host_port, - s->in2out.protocol, is_twice_nat_session (s)); + s->nat_proto, is_twice_nat_session (s)); nat_ha_sdel (&s->out2in.addr, s->out2in.port, &s->ext_host_addr, - s->ext_host_port, s->out2in.protocol, s->out2in.fib_index, + s->ext_host_port, s->nat_proto, s->out2in.fib_index, ctx->thread_index); if (is_twice_nat_session (s)) { for (i = 0; i < vec_len (sm->twice_nat_addresses); i++) { - key.protocol = s->in2out.protocol; - key.port = s->ext_host_nat_port; - a = sm->twice_nat_addresses + i; - if (a->addr.as_u32 == s->ext_host_nat_addr.as_u32) - { - snat_free_outside_address_and_port (sm->twice_nat_addresses, - ctx->thread_index, - &key); - break; - } + // FIXME TODO this is obviously wrong code ... needs fix! + // key.protocol = s->nat_proto; + // key.port = s->ext_host_nat_port; + // a = sm->twice_nat_addresses + i; + // if (a->addr.as_u32 == s->ext_host_nat_addr.as_u32) + // { + // snat_free_outside_address_and_port (sm->twice_nat_addresses, + // ctx->thread_index, + // &key); + // break; + // } } } @@ -180,7 +179,8 @@ nat44_o2i_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg) goto delete; snat_free_outside_address_and_port (sm->addresses, ctx->thread_index, - &s->out2in); + &s->out2in.addr, s->out2in.port, + s->nat_proto); delete: nat_ed_session_delete (sm, s, ctx->thread_index, 1); return 1; @@ -193,8 +193,13 @@ nat44_o2i_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg) static snat_session_t * create_session_for_static_mapping_ed (snat_main_t * sm, vlib_buffer_t * b, - snat_session_key_t l_key, - snat_session_key_t e_key, + ip4_address_t i2o_addr, + u16 i2o_port, + u32 i2o_fib_index, + ip4_address_t o2i_addr, + u16 o2i_port, + u32 o2i_fib_index, + nat_protocol_t nat_proto, vlib_node_runtime_t * node, u32 rx_fib_index, u32 thread_index, @@ -206,7 +211,6 @@ create_session_for_static_mapping_ed (snat_main_t * sm, udp_header_t *udp; snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index]; clib_bihash_kv_16_8_t kv; - snat_session_key_t eh_key; nat44_is_idle_session_ctx_t ctx; if (PREDICT_FALSE @@ -217,7 +221,7 @@ create_session_for_static_mapping_ed (snat_main_t * sm, return 0; } - s = nat_ed_session_alloc (sm, thread_index, now, e_key.protocol); + s = nat_ed_session_alloc (sm, thread_index, now, nat_proto); if (!s) { b->error = node->errors[NAT_OUT2IN_ED_ERROR_MAX_USER_SESS_EXCEEDED]; @@ -229,21 +233,24 @@ create_session_for_static_mapping_ed (snat_main_t * sm, udp = ip4_next_header (ip); s->ext_host_addr.as_u32 = ip->src_address.as_u32; - s->ext_host_port = e_key.protocol == NAT_PROTOCOL_ICMP ? 0 : udp->src_port; + s->ext_host_port = nat_proto == NAT_PROTOCOL_ICMP ? 0 : udp->src_port; s->flags |= SNAT_SESSION_FLAG_STATIC_MAPPING; if (lb_nat) s->flags |= SNAT_SESSION_FLAG_LOAD_BALANCING; if (lb_nat == AFFINITY_LB_NAT) s->flags |= SNAT_SESSION_FLAG_AFFINITY; s->flags |= SNAT_SESSION_FLAG_ENDPOINT_DEPENDENT; - s->out2in = e_key; - s->in2out = l_key; - s->in2out.protocol = s->out2in.protocol; + s->out2in.addr = o2i_addr; + s->out2in.port = o2i_port; + s->out2in.fib_index = o2i_fib_index; + s->in2out.addr = i2o_addr; + s->in2out.port = i2o_port; + s->in2out.fib_index = i2o_fib_index; + s->nat_proto = nat_proto; /* Add to lookup tables */ - make_ed_kv (&e_key.addr, &s->ext_host_addr, ip->protocol, - e_key.fib_index, e_key.port, s->ext_host_port, thread_index, - s - tsm->sessions, &kv); + init_ed_kv (&kv, o2i_addr, o2i_port, s->ext_host_addr, s->ext_host_port, + o2i_fib_index, ip->protocol, thread_index, s - tsm->sessions); ctx.now = now; ctx.thread_index = thread_index; if (clib_bihash_add_or_overwrite_stale_16_8 (&sm->out2in_ed, &kv, @@ -252,11 +259,13 @@ create_session_for_static_mapping_ed (snat_main_t * sm, nat_elog_notice ("out2in-ed key add failed"); if (twice_nat == TWICE_NAT || (twice_nat == TWICE_NAT_SELF && - ip->src_address.as_u32 == l_key.addr.as_u32)) + ip->src_address.as_u32 == i2o_addr.as_u32)) { - eh_key.protocol = e_key.protocol; if (snat_alloc_outside_address_and_port (sm->twice_nat_addresses, 0, - thread_index, &eh_key, + thread_index, + nat_proto, + &s->ext_host_nat_addr, + &s->ext_host_nat_port, sm->port_per_thread, tsm->snat_thread_index)) { @@ -266,18 +275,16 @@ create_session_for_static_mapping_ed (snat_main_t * sm, nat_elog_notice ("out2in-ed key del failed"); return 0; } - s->ext_host_nat_addr.as_u32 = eh_key.addr.as_u32; - s->ext_host_nat_port = eh_key.port; s->flags |= SNAT_SESSION_FLAG_TWICE_NAT; - make_ed_kv (&l_key.addr, &s->ext_host_nat_addr, ip->protocol, - l_key.fib_index, l_key.port, s->ext_host_nat_port, - thread_index, s - tsm->sessions, &kv); + init_ed_kv (&kv, i2o_addr, i2o_port, s->ext_host_nat_addr, + s->ext_host_nat_port, i2o_fib_index, ip->protocol, + thread_index, s - tsm->sessions); } else { - make_ed_kv (&l_key.addr, &s->ext_host_addr, ip->protocol, - l_key.fib_index, l_key.port, s->ext_host_port, thread_index, - s - tsm->sessions, &kv); + init_ed_kv (&kv, i2o_addr, i2o_port, s->ext_host_addr, + s->ext_host_port, i2o_fib_index, ip->protocol, + thread_index, s - tsm->sessions); } if (clib_bihash_add_or_overwrite_stale_16_8 (&tsm->in2out_ed, &kv, nat44_i2o_ed_is_idle_session_cb, @@ -287,7 +294,7 @@ create_session_for_static_mapping_ed (snat_main_t * sm, snat_ipfix_logging_nat44_ses_create (thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32, - s->in2out.protocol, + s->nat_proto, s->in2out.port, s->out2in.port, s->in2out.fib_index); @@ -296,13 +303,12 @@ create_session_for_static_mapping_ed (snat_main_t * sm, &s->ext_host_nat_addr, s->ext_host_nat_port, &s->out2in.addr, s->out2in.port, &s->ext_host_addr, s->ext_host_port, - s->in2out.protocol, is_twice_nat_session (s)); + s->nat_proto, is_twice_nat_session (s)); nat_ha_sadd (&s->in2out.addr, s->in2out.port, &s->out2in.addr, s->out2in.port, &s->ext_host_addr, s->ext_host_port, &s->ext_host_nat_addr, s->ext_host_nat_port, - s->in2out.protocol, s->in2out.fib_index, s->flags, - thread_index, 0); + s->nat_proto, s->in2out.fib_index, s->flags, thread_index, 0); return s; } @@ -314,8 +320,8 @@ next_src_nat (snat_main_t * sm, ip4_header_t * ip, u16 src_port, clib_bihash_kv_16_8_t kv, value; snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index]; - make_ed_kv (&ip->src_address, &ip->dst_address, ip->protocol, - rx_fib_index, src_port, dst_port, ~0, ~0, &kv); + init_ed_k (&kv, ip->src_address, src_port, ip->dst_address, dst_port, + rx_fib_index, ip->protocol); if (!clib_bihash_search_16_8 (&tsm->in2out_ed, &kv, &value)) return 1; @@ -353,8 +359,8 @@ create_bypass_for_fwd (snat_main_t * sm, vlib_buffer_t * b, ip4_header_t * ip, l_port = 0; r_port = 0; } - make_ed_kv (&ip->dst_address, &ip->src_address, ip->protocol, - rx_fib_index, l_port, r_port, ~0, ~0, &kv); + init_ed_k (&kv, ip->dst_address, l_port, ip->src_address, r_port, + rx_fib_index, ip->protocol); } if (!clib_bihash_search_16_8 (&tsm->in2out_ed, &kv, &value)) @@ -387,14 +393,16 @@ create_bypass_for_fwd (snat_main_t * sm, vlib_buffer_t * b, ip4_header_t * ip, s->flags |= SNAT_SESSION_FLAG_FWD_BYPASS; s->out2in.addr = ip->dst_address; s->out2in.port = l_port; - s->out2in.protocol = proto; + s->nat_proto = proto; if (proto == NAT_PROTOCOL_OTHER) { s->flags |= SNAT_SESSION_FLAG_UNKNOWN_PROTO; s->out2in.port = ip->protocol; } s->out2in.fib_index = 0; - s->in2out = s->out2in; + s->in2out.addr = s->out2in.addr; + s->in2out.port = s->out2in.port; + s->in2out.fib_index = s->out2in.fib_index; kv.value = s - tsm->sessions; if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &kv, 1)) @@ -431,24 +439,28 @@ create_bypass_for_fwd_worker (snat_main_t * sm, vlib_buffer_t * b, #ifndef CLIB_MARCH_VARIANT u32 icmp_match_out2in_ed (snat_main_t * sm, vlib_node_runtime_t * node, - u32 thread_index, vlib_buffer_t * b, ip4_header_t * ip, - u8 * p_proto, snat_session_key_t * p_value, - u8 * p_dont_translate, void *d, void *e) + u32 thread_index, vlib_buffer_t * b, + ip4_header_t * ip, ip4_address_t * addr, + u16 * port, u32 * fib_index, nat_protocol_t * proto, + void *d, void *e, u8 * dont_translate) { u32 next = ~0, sw_if_index, rx_fib_index; clib_bihash_kv_16_8_t kv, value; snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index]; snat_session_t *s = 0; - u8 dont_translate = 0, is_addr_only, identity_nat; - snat_session_key_t e_key, l_key; + u8 is_addr_only, identity_nat; u16 l_port, r_port; vlib_main_t *vm = vlib_get_main (); + ip4_address_t sm_addr; + u16 sm_port; + u32 sm_fib_index; + *dont_translate = 0; sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_RX]; rx_fib_index = ip4_fib_table_get_index_for_sw_if_index (sw_if_index); if (get_icmp_o2i_ed_key - (b, ip, rx_fib_index, ~0, ~0, p_proto, &l_port, &r_port, &kv)) + (b, ip, rx_fib_index, ~0, ~0, proto, &l_port, &r_port, &kv)) { b->error = node->errors[NAT_OUT2IN_ED_ERROR_UNSUPPORTED_PROTOCOL]; next = NAT_NEXT_DROP; @@ -458,12 +470,10 @@ icmp_match_out2in_ed (snat_main_t * sm, vlib_node_runtime_t * node, if (clib_bihash_search_16_8 (&sm->out2in_ed, &kv, &value)) { /* Try to match static mapping */ - e_key.addr = ip->dst_address; - e_key.port = l_port; - e_key.protocol = ip_proto_to_nat_proto (ip->protocol); - e_key.fib_index = rx_fib_index; if (snat_static_mapping_match - (sm, e_key, &l_key, 1, &is_addr_only, 0, 0, 0, &identity_nat)) + (sm, ip->dst_address, l_port, rx_fib_index, + ip_proto_to_nat_proto (ip->protocol), &sm_addr, &sm_port, + &sm_fib_index, 1, &is_addr_only, 0, 0, 0, &identity_nat)) { if (!sm->forwarding_enabled) { @@ -471,7 +481,7 @@ icmp_match_out2in_ed (snat_main_t * sm, vlib_node_runtime_t * node, if (PREDICT_FALSE (is_interface_addr (sm, node, sw_if_index, ip->dst_address.as_u32))) { - dont_translate = 1; + *dont_translate = 1; goto out; } b->error = node->errors[NAT_OUT2IN_ED_ERROR_NO_TRANSLATION]; @@ -480,7 +490,7 @@ icmp_match_out2in_ed (snat_main_t * sm, vlib_node_runtime_t * node, } else { - dont_translate = 1; + *dont_translate = 1; if (next_src_nat (sm, ip, l_port, r_port, thread_index, rx_fib_index)) { @@ -508,14 +518,18 @@ icmp_match_out2in_ed (snat_main_t * sm, vlib_node_runtime_t * node, if (PREDICT_FALSE (identity_nat)) { - dont_translate = 1; + *dont_translate = 1; goto out; } /* Create session initiated by host from external network */ - s = create_session_for_static_mapping_ed (sm, b, l_key, e_key, node, - rx_fib_index, thread_index, 0, - 0, vlib_time_now (vm)); + s = + create_session_for_static_mapping_ed (sm, b, sm_addr, sm_port, + sm_fib_index, ip->dst_address, + l_port, rx_fib_index, *proto, + node, rx_fib_index, + thread_index, 0, 0, + vlib_time_now (vm)); if (!s) { @@ -545,8 +559,11 @@ icmp_match_out2in_ed (snat_main_t * sm, vlib_node_runtime_t * node, } out: if (s) - *p_value = s->in2out; - *p_dont_translate = dont_translate; + { + *addr = s->in2out.addr; + *port = s->in2out.port; + *fib_index = s->in2out.fib_index; + } if (d) *(snat_session_t **) d = s; return next; @@ -572,8 +589,8 @@ nat44_ed_out2in_unknown_proto (snat_main_t * sm, old_addr = ip->dst_address.as_u32; - make_ed_kv (&ip->dst_address, &ip->src_address, ip->protocol, rx_fib_index, - 0, 0, ~0, ~0, &s_kv); + init_ed_k (&s_kv, ip->dst_address, 0, ip->src_address, 0, rx_fib_index, + ip->protocol); if (!clib_bihash_search_16_8 (&sm->out2in_ed, &s_kv, &s_value)) { @@ -594,7 +611,7 @@ nat44_ed_out2in_unknown_proto (snat_main_t * sm, return 0; } - make_sm_kv (&kv, &ip->dst_address, 0, 0, 0); + init_nat_k (&kv, ip->dst_address, 0, 0, 0); if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value)) { @@ -630,8 +647,8 @@ nat44_ed_out2in_unknown_proto (snat_main_t * sm, if (clib_bihash_add_del_16_8 (&sm->out2in_ed, &s_kv, 1)) nat_elog_notice ("out2in key add failed"); - make_ed_kv (&ip->dst_address, &ip->src_address, ip->protocol, - m->fib_index, 0, 0, thread_index, s - tsm->sessions, &s_kv); + init_ed_kv (&s_kv, ip->dst_address, 0, ip->src_address, 0, m->fib_index, + ip->protocol, thread_index, s - tsm->sessions); if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &s_kv, 1)) nat_elog_notice ("in2out key add failed"); } @@ -738,10 +755,10 @@ nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm, goto trace0; } - make_ed_kv (&ip0->dst_address, &ip0->src_address, - ip0->protocol, rx_fib_index0, - vnet_buffer (b0)->ip.reass.l4_dst_port, - vnet_buffer (b0)->ip.reass.l4_src_port, ~0, ~0, &kv0); + init_ed_k (&kv0, ip0->dst_address, + vnet_buffer (b0)->ip.reass.l4_dst_port, ip0->src_address, + vnet_buffer (b0)->ip.reass.l4_src_port, rx_fib_index0, + ip0->protocol); /* there is a stashed index in vnet_buffer2 from handoff node, * see if we can use it */ @@ -757,8 +774,7 @@ nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm, (s0->out2in.addr.as_u32 == ip0->dst_address.as_u32 && s0->out2in.port == vnet_buffer (b0)->ip.reass.l4_dst_port - && s0->out2in.protocol == - ip_proto_to_nat_proto (ip0->protocol) + && s0->nat_proto == ip_proto_to_nat_proto (ip0->protocol) && s0->out2in.fib_index == rx_fib_index0 && s0->ext_host_addr.as_u32 == ip0->src_address.as_u32 && s0->ext_host_port == @@ -991,10 +1007,12 @@ nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t * vm, snat_session_t *s0 = 0; clib_bihash_kv_16_8_t kv0, value0; ip_csum_t sum0; - snat_session_key_t e_key0, l_key0; lb_nat_type_t lb_nat0; twice_nat_type_t twice_nat0; u8 identity_nat0; + ip4_address_t sm_addr; + u16 sm_port; + u32 sm_fib_index; /* speculatively enqueue b0 to the current next frame */ bi0 = from[0]; @@ -1053,10 +1071,10 @@ nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t * vm, goto trace0; } - make_ed_kv (&ip0->dst_address, &ip0->src_address, - ip0->protocol, rx_fib_index0, - vnet_buffer (b0)->ip.reass.l4_dst_port, - vnet_buffer (b0)->ip.reass.l4_src_port, ~0, ~0, &kv0); + init_ed_k (&kv0, ip0->dst_address, + vnet_buffer (b0)->ip.reass.l4_dst_port, ip0->src_address, + vnet_buffer (b0)->ip.reass.l4_src_port, rx_fib_index0, + ip0->protocol); s0 = NULL; if (!clib_bihash_search_16_8 (&sm->out2in_ed, &kv0, &value0)) @@ -1078,15 +1096,12 @@ nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t * vm, { /* Try to match static mapping by external address and port, destination address and port in packet */ - e_key0.addr = ip0->dst_address; - e_key0.port = vnet_buffer (b0)->ip.reass.l4_dst_port; - e_key0.protocol = proto0; - e_key0.fib_index = rx_fib_index0; - - if (snat_static_mapping_match (sm, e_key0, &l_key0, 1, 0, - &twice_nat0, &lb_nat0, - &ip0->src_address, - &identity_nat0)) + + if (snat_static_mapping_match + (sm, ip0->dst_address, + vnet_buffer (b0)->ip.reass.l4_dst_port, rx_fib_index0, + proto0, &sm_addr, &sm_port, &sm_fib_index, 1, 0, + &twice_nat0, &lb_nat0, &ip0->src_address, &identity_nat0)) { /* * Send DHCP packets to the ipv4 stack, or we won't @@ -1140,12 +1155,18 @@ nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t * vm, } /* Create session initiated by host from external network */ - s0 = create_session_for_static_mapping_ed (sm, b0, l_key0, - e_key0, node, + s0 = create_session_for_static_mapping_ed (sm, b0, + sm_addr, sm_port, + sm_fib_index, + ip0->dst_address, + vnet_buffer (b0)-> + ip.reass.l4_dst_port, + rx_fib_index0, + proto0, node, rx_fib_index0, thread_index, - twice_nat0, - lb_nat0, now); + twice_nat0, lb_nat0, + now); if (!s0) { next0 = NAT_NEXT_DROP; |