X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fip%2Fip4_forward.c;h=64e5e8e829c0e566964d2a3a007c3eec790462f1;hb=d3c008d108aa2187d1a2afe2833b4de25ca2c2ab;hp=fdfe7f63dfc52f057e5adeaf0cc33cb14b09477b;hpb=586afd762bfa149f5ca167bd5fd5a0cd59ce94fe;p=vpp.git diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c old mode 100644 new mode 100755 index fdfe7f63dfc..64e5e8e829c --- a/src/vnet/ip/ip4_forward.c +++ b/src/vnet/ip/ip4_forward.c @@ -49,6 +49,7 @@ #include /* for FIB uRPF check */ #include #include +#include #include #include /* for mFIB table and entry creation */ @@ -89,7 +90,6 @@ ip4_lookup_inline (vlib_main_t * vm, { vlib_buffer_t *p0, *p1, *p2, *p3; ip4_header_t *ip0, *ip1, *ip2, *ip3; - __attribute__ ((unused)) tcp_header_t *tcp0, *tcp1, *tcp2, *tcp3; ip_lookup_next_t next0, next1, next2, next3; const load_balance_t *lb0, *lb1, *lb2, *lb3; ip4_fib_mtrie_t *mtrie0, *mtrie1, *mtrie2, *mtrie3; @@ -188,11 +188,6 @@ ip4_lookup_inline (vlib_main_t * vm, leaf3 = ip4_fib_mtrie_lookup_step_one (mtrie3, dst_addr3); } - tcp0 = (void *) (ip0 + 1); - tcp1 = (void *) (ip1 + 1); - tcp2 = (void *) (ip2 + 1); - tcp3 = (void *) (ip3 + 1); - if (!lookup_for_responses_to_locally_received_packets) { leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 2); @@ -230,6 +225,15 @@ ip4_lookup_inline (vlib_main_t * vm, lb2 = load_balance_get (lb_index2); lb3 = load_balance_get (lb_index3); + ASSERT (lb0->lb_n_buckets > 0); + ASSERT (is_pow2 (lb0->lb_n_buckets)); + ASSERT (lb1->lb_n_buckets > 0); + ASSERT (is_pow2 (lb1->lb_n_buckets)); + ASSERT (lb2->lb_n_buckets > 0); + ASSERT (is_pow2 (lb2->lb_n_buckets)); + ASSERT (lb3->lb_n_buckets > 0); + ASSERT (is_pow2 (lb3->lb_n_buckets)); + /* Use flow hash to compute multipath adjacency. */ hash_c0 = vnet_buffer (p0)->ip.flow_hash = 0; hash_c1 = vnet_buffer (p1)->ip.flow_hash = 0; @@ -240,47 +244,57 @@ ip4_lookup_inline (vlib_main_t * vm, flow_hash_config0 = lb0->lb_hash_config; hash_c0 = vnet_buffer (p0)->ip.flow_hash = ip4_compute_flow_hash (ip0, flow_hash_config0); + dpo0 = + load_balance_get_fwd_bucket (lb0, + (hash_c0 & + (lb0->lb_n_buckets_minus_1))); + } + else + { + dpo0 = load_balance_get_bucket_i (lb0, 0); } if (PREDICT_FALSE (lb1->lb_n_buckets > 1)) { flow_hash_config1 = lb1->lb_hash_config; hash_c1 = vnet_buffer (p1)->ip.flow_hash = ip4_compute_flow_hash (ip1, flow_hash_config1); + dpo1 = + load_balance_get_fwd_bucket (lb1, + (hash_c1 & + (lb1->lb_n_buckets_minus_1))); + } + else + { + dpo1 = load_balance_get_bucket_i (lb1, 0); } if (PREDICT_FALSE (lb2->lb_n_buckets > 1)) { flow_hash_config2 = lb2->lb_hash_config; hash_c2 = vnet_buffer (p2)->ip.flow_hash = ip4_compute_flow_hash (ip2, flow_hash_config2); + dpo2 = + load_balance_get_fwd_bucket (lb2, + (hash_c2 & + (lb2->lb_n_buckets_minus_1))); + } + else + { + dpo2 = load_balance_get_bucket_i (lb2, 0); } if (PREDICT_FALSE (lb3->lb_n_buckets > 1)) { flow_hash_config3 = lb3->lb_hash_config; hash_c3 = vnet_buffer (p3)->ip.flow_hash = ip4_compute_flow_hash (ip3, flow_hash_config3); + dpo3 = + load_balance_get_fwd_bucket (lb3, + (hash_c3 & + (lb3->lb_n_buckets_minus_1))); + } + else + { + dpo3 = load_balance_get_bucket_i (lb3, 0); } - - ASSERT (lb0->lb_n_buckets > 0); - ASSERT (is_pow2 (lb0->lb_n_buckets)); - ASSERT (lb1->lb_n_buckets > 0); - ASSERT (is_pow2 (lb1->lb_n_buckets)); - ASSERT (lb2->lb_n_buckets > 0); - ASSERT (is_pow2 (lb2->lb_n_buckets)); - ASSERT (lb3->lb_n_buckets > 0); - ASSERT (is_pow2 (lb3->lb_n_buckets)); - - dpo0 = load_balance_get_bucket_i (lb0, - (hash_c0 & - (lb0->lb_n_buckets_minus_1))); - dpo1 = load_balance_get_bucket_i (lb1, - (hash_c1 & - (lb1->lb_n_buckets_minus_1))); - dpo2 = load_balance_get_bucket_i (lb2, - (hash_c2 & - (lb2->lb_n_buckets_minus_1))); - dpo3 = load_balance_get_bucket_i (lb3, - (hash_c3 & - (lb3->lb_n_buckets_minus_1))); next0 = dpo0->dpoi_next_node; vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; @@ -293,20 +307,16 @@ ip4_lookup_inline (vlib_main_t * vm, vlib_increment_combined_counter (cm, thread_index, lb_index0, 1, - vlib_buffer_length_in_chain (vm, p0) - + sizeof (ethernet_header_t)); + vlib_buffer_length_in_chain (vm, p0)); vlib_increment_combined_counter (cm, thread_index, lb_index1, 1, - vlib_buffer_length_in_chain (vm, p1) - + sizeof (ethernet_header_t)); + vlib_buffer_length_in_chain (vm, p1)); vlib_increment_combined_counter (cm, thread_index, lb_index2, 1, - vlib_buffer_length_in_chain (vm, p2) - + sizeof (ethernet_header_t)); + vlib_buffer_length_in_chain (vm, p2)); vlib_increment_combined_counter (cm, thread_index, lb_index3, 1, - vlib_buffer_length_in_chain (vm, p3) - + sizeof (ethernet_header_t)); + vlib_buffer_length_in_chain (vm, p3)); vlib_validate_buffer_enqueue_x4 (vm, node, next, to_next, n_left_to_next, @@ -318,7 +328,6 @@ ip4_lookup_inline (vlib_main_t * vm, { vlib_buffer_t *p0; ip4_header_t *ip0; - __attribute__ ((unused)) tcp_header_t *tcp0; ip_lookup_next_t next0; const load_balance_t *lb0; ip4_fib_mtrie_t *mtrie0; @@ -352,8 +361,6 @@ ip4_lookup_inline (vlib_main_t * vm, leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, dst_addr0); } - tcp0 = (void *) (ip0 + 1); - if (!lookup_for_responses_to_locally_received_packets) leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 2); @@ -371,6 +378,9 @@ ip4_lookup_inline (vlib_main_t * vm, ASSERT (lbi0); lb0 = load_balance_get (lbi0); + ASSERT (lb0->lb_n_buckets > 0); + ASSERT (is_pow2 (lb0->lb_n_buckets)); + /* Use flow hash to compute multipath adjacency. */ hash_c0 = vnet_buffer (p0)->ip.flow_hash = 0; if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) @@ -379,20 +389,22 @@ ip4_lookup_inline (vlib_main_t * vm, hash_c0 = vnet_buffer (p0)->ip.flow_hash = ip4_compute_flow_hash (ip0, flow_hash_config0); + dpo0 = + load_balance_get_fwd_bucket (lb0, + (hash_c0 & + (lb0->lb_n_buckets_minus_1))); + } + else + { + dpo0 = load_balance_get_bucket_i (lb0, 0); } - - ASSERT (lb0->lb_n_buckets > 0); - ASSERT (is_pow2 (lb0->lb_n_buckets)); - - dpo0 = load_balance_get_bucket_i (lb0, - (hash_c0 & - (lb0->lb_n_buckets_minus_1))); next0 = dpo0->dpoi_next_node; vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; - vlib_increment_combined_counter - (cm, thread_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0)); + vlib_increment_combined_counter (cm, thread_index, lbi0, 1, + vlib_buffer_length_in_chain (vm, + p0)); from += 1; to_next += 1; @@ -555,6 +567,12 @@ ip4_load_balance (vlib_main_t * vm, hc0 = vnet_buffer (p0)->ip.flow_hash = ip4_compute_flow_hash (ip0, lb0->lb_hash_config); } + dpo0 = load_balance_get_fwd_bucket + (lb0, (hc0 & (lb0->lb_n_buckets_minus_1))); + } + else + { + dpo0 = load_balance_get_bucket_i (lb0, 0); } if (PREDICT_FALSE (lb1->lb_n_buckets > 1)) { @@ -568,14 +586,13 @@ ip4_load_balance (vlib_main_t * vm, hc1 = vnet_buffer (p1)->ip.flow_hash = ip4_compute_flow_hash (ip1, lb1->lb_hash_config); } + dpo1 = load_balance_get_fwd_bucket + (lb1, (hc1 & (lb1->lb_n_buckets_minus_1))); + } + else + { + dpo1 = load_balance_get_bucket_i (lb1, 0); } - - dpo0 = - load_balance_get_bucket_i (lb0, - hc0 & (lb0->lb_n_buckets_minus_1)); - dpo1 = - load_balance_get_bucket_i (lb1, - hc1 & (lb1->lb_n_buckets_minus_1)); next0 = dpo0->dpoi_next_node; next1 = dpo1->dpoi_next_node; @@ -629,11 +646,13 @@ ip4_load_balance (vlib_main_t * vm, hc0 = vnet_buffer (p0)->ip.flow_hash = ip4_compute_flow_hash (ip0, lb0->lb_hash_config); } + dpo0 = load_balance_get_fwd_bucket + (lb0, (hc0 & (lb0->lb_n_buckets_minus_1))); + } + else + { + dpo0 = load_balance_get_bucket_i (lb0, 0); } - - dpo0 = - load_balance_get_bucket_i (lb0, - hc0 & (lb0->lb_n_buckets_minus_1)); next0 = dpo0->dpoi_next_node; vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; @@ -698,28 +717,23 @@ ip4_add_interface_routes (u32 sw_if_index, .fp_addr.ip4 = *address, }; - a->neighbor_probe_adj_index = ~0; - if (pfx.fp_len <= 30) { /* a /30 or shorter - add a glean for the network address */ - fib_node_index_t fei; - - fei = fib_table_entry_update_one_path (fib_index, &pfx, - FIB_SOURCE_INTERFACE, - (FIB_ENTRY_FLAG_CONNECTED | - FIB_ENTRY_FLAG_ATTACHED), - FIB_PROTOCOL_IP4, - /* No next-hop address */ - NULL, - sw_if_index, - // invalid FIB index - ~0, - 1, - // no out-label stack - NULL, - FIB_ROUTE_PATH_FLAG_NONE); - a->neighbor_probe_adj_index = fib_entry_get_adj (fei); + fib_table_entry_update_one_path (fib_index, &pfx, + FIB_SOURCE_INTERFACE, + (FIB_ENTRY_FLAG_CONNECTED | + FIB_ENTRY_FLAG_ATTACHED), + DPO_PROTO_IP4, + /* No next-hop address */ + NULL, + sw_if_index, + // invalid FIB index + ~0, + 1, + // no out-label stack + NULL, + FIB_ROUTE_PATH_FLAG_NONE); /* Add the two broadcast addresses as drop */ fib_prefix_t net_pfx = { @@ -732,16 +746,14 @@ ip4_add_interface_routes (u32 sw_if_index, &net_pfx, FIB_SOURCE_INTERFACE, (FIB_ENTRY_FLAG_DROP | - FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT), - ADJ_INDEX_INVALID); + FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT)); net_pfx.fp_addr.ip4.as_u32 |= ~im->fib_masks[pfx.fp_len]; if (net_pfx.fp_addr.ip4.as_u32 != pfx.fp_addr.ip4.as_u32) fib_table_entry_special_add(fib_index, &net_pfx, FIB_SOURCE_INTERFACE, (FIB_ENTRY_FLAG_DROP | - FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT), - ADJ_INDEX_INVALID); + FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT)); } else if (pfx.fp_len == 31) { @@ -755,7 +767,7 @@ ip4_add_interface_routes (u32 sw_if_index, fib_table_entry_update_one_path (fib_index, &net_pfx, FIB_SOURCE_INTERFACE, (FIB_ENTRY_FLAG_ATTACHED), - FIB_PROTOCOL_IP4, + DPO_PROTO_IP4, &net_pfx.fp_addr, sw_if_index, // invalid FIB index @@ -791,7 +803,7 @@ ip4_add_interface_routes (u32 sw_if_index, FIB_SOURCE_INTERFACE, (FIB_ENTRY_FLAG_CONNECTED | FIB_ENTRY_FLAG_LOCAL), - FIB_PROTOCOL_IP4, + DPO_PROTO_IP4, &pfx.fp_addr, sw_if_index, // invalid FIB index @@ -886,6 +898,13 @@ ip4_add_del_interface_address_internal (vlib_main_t * vm, u32 if_address_index, elts_before; ip4_address_fib_t ip4_af, *addr_fib = 0; + /* local0 interface doesn't support IP addressing */ + if (sw_if_index == 0) + { + return + clib_error_create ("local0 interface doesn't support IP addressing"); + } + vec_validate (im->fib_index_by_sw_if_index, sw_if_index); ip4_addr_fib_init (&ip4_af, address, vec_elt (im->fib_index_by_sw_if_index, sw_if_index)); @@ -1124,6 +1143,23 @@ ip4_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add) vec_validate (im->fib_index_by_sw_if_index, sw_if_index); vec_validate (im->mfib_index_by_sw_if_index, sw_if_index); + if (!is_add) + { + ip4_main_t *im4 = &ip4_main; + ip_lookup_main_t *lm4 = &im4->lookup_main; + ip_interface_address_t *ia = 0; + ip4_address_t *address; + vlib_main_t *vm = vlib_get_main (); + + /* *INDENT-OFF* */ + foreach_ip_interface_address (lm4, ia, sw_if_index, 1 /* honor unnumbered */, + ({ + address = ip_interface_address_get_address (lm4, ia); + ip4_add_del_interface_address(vm, sw_if_index, address, ia->address_length, 1); + })); + /* *INDENT-ON* */ + } + vnet_feature_enable_disable ("ip4-unicast", "ip4-drop", sw_if_index, is_add, 0, 0); @@ -1162,8 +1198,10 @@ ip4_lookup_init (vlib_main_t * vm) ip_lookup_init (&im->lookup_main, /* is_ip6 */ 0); /* Create FIB with index 0 and table id of 0. */ - fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, 0); - mfib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, 0); + fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, 0, + FIB_SOURCE_DEFAULT_ROUTE); + mfib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, 0, + MFIB_SOURCE_DEFAULT_ROUTE); { pg_node_t *pn; @@ -1220,7 +1258,7 @@ format_ip4_forward_next_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 *); ip4_forward_next_trace_t *t = va_arg (*args, ip4_forward_next_trace_t *); - uword indent = format_get_indent (s); + u32 indent = format_get_indent (s); s = format (s, "%U%U", format_white_space, indent, format_ip4_header, t->packet_data, sizeof (t->packet_data)); @@ -1233,7 +1271,7 @@ format_ip4_lookup_trace (u8 * s, va_list * args) CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); ip4_forward_next_trace_t *t = va_arg (*args, ip4_forward_next_trace_t *); - uword indent = format_get_indent (s); + u32 indent = format_get_indent (s); s = format (s, "fib %d dpo-idx %d flow hash: 0x%08x", t->fib_index, t->dpo_index, t->flow_hash); @@ -1249,7 +1287,7 @@ format_ip4_rewrite_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 *); ip4_forward_next_trace_t *t = va_arg (*args, ip4_forward_next_trace_t *); - uword indent = format_get_indent (s); + u32 indent = format_get_indent (s); s = format (s, "tx_sw_if_index %d dpo-idx %d : %U flow hash: 0x%08x", t->fib_index, t->dpo_index, format_ip_adjacency, @@ -1384,8 +1422,8 @@ ip4_punt (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) /* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip4_drop_node, static) = { - .function = ip4_drop,. - name = "ip4-drop", + .function = ip4_drop, + .name = "ip4-drop", .vector_size = sizeof (u32), .format_trace = format_ip4_forward_next_trace, .n_next_nodes = 1, @@ -1418,7 +1456,7 @@ ip4_tcp_udp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, { ip_csum_t sum0; u32 ip_header_length, payload_length_host_byte_order; - u32 n_this_buffer, n_bytes_left; + u32 n_this_buffer, n_bytes_left, n_ip_bytes_this_buffer; u16 sum16; void *data_this_buffer; @@ -1445,10 +1483,12 @@ ip4_tcp_udp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, n_bytes_left = n_this_buffer = payload_length_host_byte_order; data_this_buffer = (void *) ip0 + ip_header_length; - if (n_this_buffer + ip_header_length > p0->current_length) - n_this_buffer = - p0->current_length > - ip_header_length ? p0->current_length - ip_header_length : 0; + n_ip_bytes_this_buffer = p0->current_length - (((u8 *) ip0 - p0->data) - p0->current_data); + if (n_this_buffer + ip_header_length > n_ip_bytes_this_buffer) + { + n_this_buffer = n_ip_bytes_this_buffer > ip_header_length ? + n_ip_bytes_this_buffer - ip_header_length : 0; + } while (1) { sum0 = ip_incremental_checksum (sum0, data_this_buffer, n_this_buffer); @@ -1480,15 +1520,15 @@ ip4_tcp_udp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0) udp0 = (void *) (ip0 + 1); if (ip0->protocol == IP_PROTOCOL_UDP && udp0->checksum == 0) { - p0->flags |= (IP_BUFFER_L4_CHECKSUM_COMPUTED - | IP_BUFFER_L4_CHECKSUM_CORRECT); + p0->flags |= (VNET_BUFFER_F_L4_CHECKSUM_COMPUTED + | VNET_BUFFER_F_L4_CHECKSUM_CORRECT); return p0->flags; } sum16 = ip4_tcp_udp_compute_checksum (vm, p0, ip0); - p0->flags |= (IP_BUFFER_L4_CHECKSUM_COMPUTED - | ((sum16 == 0) << LOG2_IP_BUFFER_L4_CHECKSUM_CORRECT)); + p0->flags |= (VNET_BUFFER_F_L4_CHECKSUM_COMPUTED + | ((sum16 == 0) << VNET_BUFFER_F_LOG2_L4_CHECKSUM_CORRECT)); return p0->flags; } @@ -1501,6 +1541,32 @@ VNET_FEATURE_ARC_INIT (ip4_local) = }; /* *INDENT-ON* */ +static inline void +ip4_local_validate_l4 (vlib_main_t * vm, vlib_buffer_t * p, ip4_header_t * ip, + u8 is_udp, u8 * error, u8 * good_tcp_udp) +{ + u32 flags0; + flags0 = ip4_tcp_udp_validate_checksum (vm, p); + *good_tcp_udp = (flags0 & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0; + if (is_udp) + { + udp_header_t *udp; + u32 ip_len, udp_len; + i32 len_diff; + udp = ip4_next_header (ip); + /* Verify UDP length. */ + ip_len = clib_net_to_host_u16 (ip->length); + udp_len = clib_net_to_host_u16 (udp->length); + + len_diff = ip_len - udp_len; + *good_tcp_udp &= len_diff >= 0; + *error = len_diff < 0 ? IP4_ERROR_UDP_LENGTH : *error; + } +} + +#define ip4_local_do_l4_check(is_tcp_udp, flags) \ + (is_tcp_udp && !(flags & VNET_BUFFER_F_L4_CHECKSUM_COMPUTED)) + static inline uword ip4_local_inline (vlib_main_t * vm, vlib_node_runtime_t * node, @@ -1529,14 +1595,12 @@ ip4_local_inline (vlib_main_t * vm, { vlib_buffer_t *p0, *p1; ip4_header_t *ip0, *ip1; - udp_header_t *udp0, *udp1; ip4_fib_mtrie_t *mtrie0, *mtrie1; ip4_fib_mtrie_leaf_t leaf0, leaf1; const dpo_id_t *dpo0, *dpo1; const load_balance_t *lb0, *lb1; - u32 pi0, ip_len0, udp_len0, flags0, next0, fib_index0, lbi0; - u32 pi1, ip_len1, udp_len1, flags1, next1, fib_index1, lbi1; - i32 len_diff0, len_diff1; + u32 pi0, next0, fib_index0, lbi0; + u32 pi1, next1, fib_index1, lbi1; u8 error0, is_udp0, is_tcp_udp0, good_tcp_udp0, proto0; u8 error1, is_udp1, is_tcp_udp1, good_tcp_udp1, proto1; u32 sw_if_index0, sw_if_index1; @@ -1549,6 +1613,7 @@ ip4_local_inline (vlib_main_t * vm, n_left_to_next -= 2; next0 = next1 = IP_LOCAL_NEXT_DROP; + error0 = error1 = IP4_ERROR_UNKNOWN_PROTOCOL; p0 = vlib_get_buffer (vm, pi0); p1 = vlib_get_buffer (vm, pi1); @@ -1556,118 +1621,71 @@ ip4_local_inline (vlib_main_t * vm, ip0 = vlib_buffer_get_current (p0); ip1 = vlib_buffer_get_current (p1); - vnet_buffer (p0)->ip.start_of_ip_header = p0->current_data; - vnet_buffer (p1)->ip.start_of_ip_header = p1->current_data; + vnet_buffer (p0)->l3_hdr_offset = p0->current_data; + vnet_buffer (p1)->l3_hdr_offset = p1->current_data; sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX]; sw_if_index1 = vnet_buffer (p1)->sw_if_index[VLIB_RX]; - fib_index0 = vec_elt (im->fib_index_by_sw_if_index, sw_if_index0); - fib_index1 = vec_elt (im->fib_index_by_sw_if_index, sw_if_index1); - - fib_index0 = vec_elt (im->fib_index_by_sw_if_index, sw_if_index0); - fib_index0 = - (vnet_buffer (p0)->sw_if_index[VLIB_TX] == - (u32) ~ 0) ? fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX]; - - fib_index1 = vec_elt (im->fib_index_by_sw_if_index, sw_if_index1); - fib_index1 = - (vnet_buffer (p1)->sw_if_index[VLIB_TX] == - (u32) ~ 0) ? fib_index1 : vnet_buffer (p1)->sw_if_index[VLIB_TX]; - - mtrie0 = &ip4_fib_get (fib_index0)->mtrie; - mtrie1 = &ip4_fib_get (fib_index1)->mtrie; - - leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, &ip0->src_address); - leaf1 = ip4_fib_mtrie_lookup_step_one (mtrie1, &ip1->src_address); - /* Treat IP frag packets as "experimental" protocol for now until support of IP frag reassembly is implemented */ proto0 = ip4_is_fragment (ip0) ? 0xfe : ip0->protocol; proto1 = ip4_is_fragment (ip1) ? 0xfe : ip1->protocol; if (head_of_feature_arc == 0) - { - error0 = error1 = IP4_ERROR_UNKNOWN_PROTOCOL; - goto skip_checks; - } + goto skip_checks; is_udp0 = proto0 == IP_PROTOCOL_UDP; is_udp1 = proto1 == IP_PROTOCOL_UDP; is_tcp_udp0 = is_udp0 || proto0 == IP_PROTOCOL_TCP; is_tcp_udp1 = is_udp1 || proto1 == IP_PROTOCOL_TCP; - flags0 = p0->flags; - flags1 = p1->flags; + good_tcp_udp0 = + (p0->flags & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0; + good_tcp_udp1 = + (p1->flags & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0; - good_tcp_udp0 = (flags0 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0; - good_tcp_udp1 = (flags1 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0; - - udp0 = ip4_next_header (ip0); - udp1 = ip4_next_header (ip1); - - /* Don't verify UDP checksum for packets with explicit zero checksum. */ - good_tcp_udp0 |= is_udp0 && udp0->checksum == 0; - good_tcp_udp1 |= is_udp1 && udp1->checksum == 0; - - /* Verify UDP length. */ - ip_len0 = clib_net_to_host_u16 (ip0->length); - ip_len1 = clib_net_to_host_u16 (ip1->length); - udp_len0 = clib_net_to_host_u16 (udp0->length); - udp_len1 = clib_net_to_host_u16 (udp1->length); - - len_diff0 = ip_len0 - udp_len0; - len_diff1 = ip_len1 - udp_len1; - - len_diff0 = is_udp0 ? len_diff0 : 0; - len_diff1 = is_udp1 ? len_diff1 : 0; - - if (PREDICT_FALSE (!(is_tcp_udp0 & is_tcp_udp1 - & good_tcp_udp0 & good_tcp_udp1))) + if (PREDICT_FALSE (ip4_local_do_l4_check (is_tcp_udp0, p0->flags) + || ip4_local_do_l4_check (is_tcp_udp1, + p1->flags))) { if (is_tcp_udp0) - { - if (is_tcp_udp0 - && !(flags0 & IP_BUFFER_L4_CHECKSUM_COMPUTED)) - flags0 = ip4_tcp_udp_validate_checksum (vm, p0); - good_tcp_udp0 = - (flags0 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0; - good_tcp_udp0 |= is_udp0 && udp0->checksum == 0; - } + ip4_local_validate_l4 (vm, p0, ip0, is_udp0, &error0, + &good_tcp_udp0); if (is_tcp_udp1) - { - if (is_tcp_udp1 - && !(flags1 & IP_BUFFER_L4_CHECKSUM_COMPUTED)) - flags1 = ip4_tcp_udp_validate_checksum (vm, p1); - good_tcp_udp1 = - (flags1 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0; - good_tcp_udp1 |= is_udp1 && udp1->checksum == 0; - } + ip4_local_validate_l4 (vm, p1, ip1, is_udp1, &error1, + &good_tcp_udp1); } - good_tcp_udp0 &= len_diff0 >= 0; - good_tcp_udp1 &= len_diff1 >= 0; - - leaf0 = - ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 2); - leaf1 = - ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 2); - - error0 = error1 = IP4_ERROR_UNKNOWN_PROTOCOL; - - error0 = len_diff0 < 0 ? IP4_ERROR_UDP_LENGTH : error0; - error1 = len_diff1 < 0 ? IP4_ERROR_UDP_LENGTH : error1; - ASSERT (IP4_ERROR_TCP_CHECKSUM + 1 == IP4_ERROR_UDP_CHECKSUM); error0 = (is_tcp_udp0 && !good_tcp_udp0 ? IP4_ERROR_TCP_CHECKSUM + is_udp0 : error0); error1 = (is_tcp_udp1 && !good_tcp_udp1 ? IP4_ERROR_TCP_CHECKSUM + is_udp1 : error1); - leaf0 = - ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 3); - leaf1 = - ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 3); + fib_index0 = vec_elt (im->fib_index_by_sw_if_index, sw_if_index0); + fib_index0 = + (vnet_buffer (p0)->sw_if_index[VLIB_TX] == + (u32) ~ 0) ? fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX]; + + fib_index1 = vec_elt (im->fib_index_by_sw_if_index, sw_if_index1); + fib_index1 = + (vnet_buffer (p1)->sw_if_index[VLIB_TX] == + (u32) ~ 0) ? fib_index1 : vnet_buffer (p1)->sw_if_index[VLIB_TX]; + + mtrie0 = &ip4_fib_get (fib_index0)->mtrie; + mtrie1 = &ip4_fib_get (fib_index1)->mtrie; + + leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, &ip0->src_address); + leaf1 = ip4_fib_mtrie_lookup_step_one (mtrie1, &ip1->src_address); + leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, + 2); + leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, + 2); + leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, + 3); + leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, + 3); vnet_buffer (p0)->ip.adj_index[VLIB_RX] = lbi0 = ip4_fib_mtrie_leaf_get_adj_index (leaf0); @@ -1737,11 +1755,9 @@ ip4_local_inline (vlib_main_t * vm, { vlib_buffer_t *p0; ip4_header_t *ip0; - udp_header_t *udp0; ip4_fib_mtrie_t *mtrie0; ip4_fib_mtrie_leaf_t leaf0; - u32 pi0, next0, ip_len0, udp_len0, flags0, fib_index0, lbi0; - i32 len_diff0; + u32 pi0, next0, fib_index0, lbi0; u8 error0, is_udp0, is_tcp_udp0, good_tcp_udp0, proto0; load_balance_t *lb0; const dpo_id_t *dpo0; @@ -1754,93 +1770,52 @@ ip4_local_inline (vlib_main_t * vm, n_left_to_next -= 1; next0 = IP_LOCAL_NEXT_DROP; + error0 = IP4_ERROR_UNKNOWN_PROTOCOL; p0 = vlib_get_buffer (vm, pi0); - ip0 = vlib_buffer_get_current (p0); - - vnet_buffer (p0)->ip.start_of_ip_header = p0->current_data; - + vnet_buffer (p0)->l3_hdr_offset = p0->current_data; sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX]; - fib_index0 = vec_elt (im->fib_index_by_sw_if_index, sw_if_index0); - - fib_index0 = - (vnet_buffer (p0)->sw_if_index[VLIB_TX] == - (u32) ~ 0) ? fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX]; - - mtrie0 = &ip4_fib_get (fib_index0)->mtrie; - - leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, &ip0->src_address); - /* Treat IP frag packets as "experimental" protocol for now until support of IP frag reassembly is implemented */ proto0 = ip4_is_fragment (ip0) ? 0xfe : ip0->protocol; if (head_of_feature_arc == 0) - { - error0 = IP4_ERROR_UNKNOWN_PROTOCOL; - goto skip_check; - } + goto skip_check; is_udp0 = proto0 == IP_PROTOCOL_UDP; is_tcp_udp0 = is_udp0 || proto0 == IP_PROTOCOL_TCP; + good_tcp_udp0 = + (p0->flags & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0; - flags0 = p0->flags; - - good_tcp_udp0 = (flags0 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0; - - udp0 = ip4_next_header (ip0); - - /* Don't verify UDP checksum for packets with explicit zero checksum. */ - good_tcp_udp0 |= is_udp0 && udp0->checksum == 0; - - /* Verify UDP length. */ - ip_len0 = clib_net_to_host_u16 (ip0->length); - udp_len0 = clib_net_to_host_u16 (udp0->length); - - len_diff0 = ip_len0 - udp_len0; - - len_diff0 = is_udp0 ? len_diff0 : 0; - - if (PREDICT_FALSE (!(is_tcp_udp0 & good_tcp_udp0))) + if (PREDICT_FALSE (ip4_local_do_l4_check (is_tcp_udp0, p0->flags))) { - if (is_tcp_udp0) - { - if (is_tcp_udp0 - && !(flags0 & IP_BUFFER_L4_CHECKSUM_COMPUTED)) - flags0 = ip4_tcp_udp_validate_checksum (vm, p0); - good_tcp_udp0 = - (flags0 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0; - good_tcp_udp0 |= is_udp0 && udp0->checksum == 0; - } + ip4_local_validate_l4 (vm, p0, ip0, is_udp0, &error0, + &good_tcp_udp0); } - good_tcp_udp0 &= len_diff0 >= 0; - - leaf0 = - ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 2); - - error0 = IP4_ERROR_UNKNOWN_PROTOCOL; - - error0 = len_diff0 < 0 ? IP4_ERROR_UDP_LENGTH : error0; - ASSERT (IP4_ERROR_TCP_CHECKSUM + 1 == IP4_ERROR_UDP_CHECKSUM); error0 = (is_tcp_udp0 && !good_tcp_udp0 ? IP4_ERROR_TCP_CHECKSUM + is_udp0 : error0); - leaf0 = - ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 3); - + fib_index0 = vec_elt (im->fib_index_by_sw_if_index, sw_if_index0); + fib_index0 = + (vnet_buffer (p0)->sw_if_index[VLIB_TX] == + (u32) ~ 0) ? fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX]; + mtrie0 = &ip4_fib_get (fib_index0)->mtrie; + leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, &ip0->src_address); + leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, + 2); + leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, + 3); lbi0 = ip4_fib_mtrie_leaf_get_adj_index (leaf0); vnet_buffer (p0)->ip.adj_index[VLIB_TX] = lbi0; + vnet_buffer (p0)->ip.adj_index[VLIB_RX] = lbi0; lb0 = load_balance_get (lbi0); dpo0 = load_balance_get_bucket_i (lb0, 0); - vnet_buffer (p0)->ip.adj_index[VLIB_TX] = - vnet_buffer (p0)->ip.adj_index[VLIB_RX] = lbi0; - error0 = ((error0 == IP4_ERROR_UNKNOWN_PROTOCOL && dpo0->dpoi_type == DPO_RECEIVE) ? IP4_ERROR_SPOOFED_LOCAL_PACKETS : error0); @@ -1850,9 +1825,7 @@ ip4_local_inline (vlib_main_t * vm, ? IP4_ERROR_SRC_LOOKUP_MISS : error0); skip_check: - next0 = lm->local_next_by_ip_protocol[proto0]; - next0 = error0 != IP4_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next0; @@ -1866,9 +1839,7 @@ ip4_local_inline (vlib_main_t * vm, vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, pi0, next0); - } - vlib_put_next_frame (vm, node, next_index, n_left_to_next); } @@ -1894,7 +1865,8 @@ VLIB_REGISTER_NODE (ip4_local_node) = [IP_LOCAL_NEXT_DROP] = "error-drop", [IP_LOCAL_NEXT_PUNT] = "error-punt", [IP_LOCAL_NEXT_UDP_LOOKUP] = "ip4-udp-lookup", - [IP_LOCAL_NEXT_ICMP] = "ip4-icmp-input",}, + [IP_LOCAL_NEXT_ICMP] = "ip4-icmp-input", + }, }; /* *INDENT-ON* */ @@ -1950,7 +1922,13 @@ show_ip_local_command_fn (vlib_main_t * vm, for (i = 0; i < ARRAY_LEN (lm->local_next_by_ip_protocol); i++) { if (lm->local_next_by_ip_protocol[i] != IP_LOCAL_NEXT_PUNT) - vlib_cli_output (vm, "%d", i); + { + u32 node_index = vlib_get_node (vm, + ip4_local_node.index)-> + next_nodes[lm->local_next_by_ip_protocol[i]]; + vlib_cli_output (vm, "%d: %U", i, format_vlib_node_name, vm, + node_index); + } } return 0; } @@ -2036,7 +2014,7 @@ ip4_arp_inline (vlib_main_t * vm, p0 = vlib_get_buffer (vm, pi0); adj_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; - adj0 = ip_get_adjacency (lm, adj_index0); + adj0 = adj_get (adj_index0); ip0 = vlib_buffer_get_current (p0); a0 = hash_seeds[0]; @@ -2060,11 +2038,12 @@ ip4_arp_inline (vlib_main_t * vm, } b0 ^= sw_if_index0; + hash_v3_mix32 (a0, b0, c0); hash_v3_finalize32 (a0, b0, c0); c0 &= BITS (hash_bitmap) - 1; - c0 = c0 / BITS (uword); m0 = (uword) 1 << (c0 % BITS (uword)); + c0 = c0 / BITS (uword); bm0 = hash_bitmap[c0]; drop0 = (bm0 & m0) != 0; @@ -2158,6 +2137,7 @@ ip4_arp_inline (vlib_main_t * vm, vlib_buffer_copy_trace_flag (vm, p0, bi0); b0 = vlib_get_buffer (vm, bi0); + VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0); vnet_buffer (b0)->sw_if_index[VLIB_TX] = sw_if_index0; vlib_buffer_advance (b0, -adj0->rewrite_header.data_bytes); @@ -2252,6 +2232,7 @@ ip4_probe_neighbor (vlib_main_t * vm, ip4_address_t * dst, u32 sw_if_index) vnet_hw_interface_t *hi; vnet_sw_interface_t *si; vlib_buffer_t *b; + adj_index_t ai; u32 bi = 0; si = vnet_get_sw_interface (vnm, sw_if_index); @@ -2276,14 +2257,18 @@ ip4_probe_neighbor (vlib_main_t * vm, ip4_address_t * dst, u32 sw_if_index) sw_if_index); } - adj = ip_get_adjacency (&im->lookup_main, ia->neighbor_probe_adj_index); - - h = - vlib_packet_template_get_packet (vm, - &im->ip4_arp_request_packet_template, - &bi); + h = vlib_packet_template_get_packet (vm, + &im->ip4_arp_request_packet_template, + &bi); hi = vnet_get_sup_hw_interface (vnm, sw_if_index); + if (PREDICT_FALSE (!hi->hw_address)) + { + return clib_error_return (0, "%U: interface %U do not support ip probe", + format_ip4_address, dst, + format_vnet_sw_if_index_name, vnm, + sw_if_index); + } clib_memcpy (h->ip4_over_ethernet[0].ethernet, hi->hw_address, sizeof (h->ip4_over_ethernet[0].ethernet)); @@ -2295,6 +2280,22 @@ ip4_probe_neighbor (vlib_main_t * vm, ip4_address_t * dst, u32 sw_if_index) vnet_buffer (b)->sw_if_index[VLIB_RX] = vnet_buffer (b)->sw_if_index[VLIB_TX] = sw_if_index; + ip46_address_t nh = { + .ip4 = *dst, + }; + + ai = adj_nbr_add_or_lock (FIB_PROTOCOL_IP4, + VNET_LINK_IP4, &nh, sw_if_index); + adj = adj_get (ai); + + /* Peer has been previously resolved, retrieve glean adj instead */ + if (adj->lookup_next_index == IP_LOOKUP_NEXT_REWRITE) + { + adj_unlock (ai); + ai = adj_glean_add_or_lock (FIB_PROTOCOL_IP4, sw_if_index, &nh); + adj = adj_get (ai); + } + /* Add encapsulation string for software interface (e.g. ethernet header). */ vnet_rewrite_one_header (adj[0], h, sizeof (ethernet_header_t)); vlib_buffer_advance (b, -adj->rewrite_header.data_bytes); @@ -2307,6 +2308,7 @@ ip4_probe_neighbor (vlib_main_t * vm, ip4_address_t * dst, u32 sw_if_index) vlib_put_frame_to_node (vm, hi->output_node_index, f); } + adj_unlock (ai); return /* no error */ 0; } @@ -2392,7 +2394,7 @@ ip4_rewrite_inline (vlib_main_t * vm, /* Decrement TTL & update checksum. Works either endian, so no need for byte swap. */ - if (PREDICT_TRUE (!(p0->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) + if (PREDICT_TRUE (!(p0->flags & VNET_BUFFER_F_LOCALLY_ORIGINATED))) { i32 ttl0 = ip0->ttl; @@ -2421,13 +2423,14 @@ ip4_rewrite_inline (vlib_main_t * vm, } /* Verify checksum. */ - ASSERT (ip0->checksum == ip4_header_checksum (ip0)); + ASSERT ((ip0->checksum == ip4_header_checksum (ip0)) || + (p0->flags & VNET_BUFFER_F_OFFLOAD_IP_CKSUM)); } else { - p0->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; + p0->flags &= ~VNET_BUFFER_F_LOCALLY_ORIGINATED; } - if (PREDICT_TRUE (!(p1->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) + if (PREDICT_TRUE (!(p1->flags & VNET_BUFFER_F_LOCALLY_ORIGINATED))) { i32 ttl1 = ip1->ttl; @@ -2456,17 +2459,17 @@ ip4_rewrite_inline (vlib_main_t * vm, } /* Verify checksum. */ - ASSERT (ip0->checksum == ip4_header_checksum (ip0)); - ASSERT (ip1->checksum == ip4_header_checksum (ip1)); + ASSERT ((ip1->checksum == ip4_header_checksum (ip1)) || + (p1->flags & VNET_BUFFER_F_OFFLOAD_IP_CKSUM)); } else { - p1->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; + p1->flags &= ~VNET_BUFFER_F_LOCALLY_ORIGINATED; } /* Rewrite packet header and updates lengths. */ - adj0 = ip_get_adjacency (lm, adj_index0); - adj1 = ip_get_adjacency (lm, adj_index1); + adj0 = adj_get (adj_index0); + adj1 = adj_get (adj_index1); /* Worth pipelining. No guarantee that adj0,1 are hot... */ rw_len0 = adj0[0].rewrite_header.data_bytes; @@ -2571,7 +2574,7 @@ ip4_rewrite_inline (vlib_main_t * vm, adj_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; - adj0 = ip_get_adjacency (lm, adj_index0); + adj0 = adj_get (adj_index0); ip0 = vlib_buffer_get_current (p0); @@ -2579,7 +2582,7 @@ ip4_rewrite_inline (vlib_main_t * vm, next0 = IP4_REWRITE_NEXT_DROP; /* drop on error */ /* Decrement TTL & update checksum. */ - if (PREDICT_TRUE (!(p0->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) + if (PREDICT_TRUE (!(p0->flags & VNET_BUFFER_F_LOCALLY_ORIGINATED))) { i32 ttl0 = ip0->ttl; @@ -2595,7 +2598,8 @@ ip4_rewrite_inline (vlib_main_t * vm, ip0->ttl = ttl0; - ASSERT (ip0->checksum == ip4_header_checksum (ip0)); + ASSERT ((ip0->checksum == ip4_header_checksum (ip0)) || + (p0->flags & VNET_BUFFER_F_OFFLOAD_IP_CKSUM)); if (PREDICT_FALSE (ttl0 <= 0)) { @@ -2613,7 +2617,7 @@ ip4_rewrite_inline (vlib_main_t * vm, } else { - p0->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; + p0->flags &= ~VNET_BUFFER_F_LOCALLY_ORIGINATED; } if (do_counters) @@ -2752,6 +2756,16 @@ ip4_rewrite_mcast (vlib_main_t * vm, return ip4_rewrite_inline (vm, node, frame, 0, 0, 1); } +static uword +ip4_mcast_midchain (vlib_main_t * vm, + vlib_node_runtime_t * node, vlib_frame_t * frame) +{ + if (adj_are_counters_enabled ()) + return ip4_rewrite_inline (vm, node, frame, 1, 1, 1); + else + return ip4_rewrite_inline (vm, node, frame, 0, 1, 1); +} + /* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip4_rewrite_node) = { .function = ip4_rewrite, @@ -2778,6 +2792,16 @@ VLIB_REGISTER_NODE (ip4_rewrite_mcast_node) = { }; VLIB_NODE_FUNCTION_MULTIARCH (ip4_rewrite_mcast_node, ip4_rewrite_mcast) +VLIB_REGISTER_NODE (ip4_mcast_midchain_node, static) = { + .function = ip4_mcast_midchain, + .name = "ip4-mcast-midchain", + .vector_size = sizeof (u32), + + .format_trace = format_ip4_rewrite_trace, + .sibling_of = "ip4-rewrite", +}; +VLIB_NODE_FUNCTION_MULTIARCH (ip4_mcast_midchain_node, ip4_mcast_midchain) + VLIB_REGISTER_NODE (ip4_midchain_node) = { .function = ip4_midchain, .name = "ip4-midchain", @@ -2788,101 +2812,6 @@ VLIB_REGISTER_NODE (ip4_midchain_node) = { VLIB_NODE_FUNCTION_MULTIARCH (ip4_midchain_node, ip4_midchain); /* *INDENT-ON */ -static clib_error_t * -add_del_interface_table (vlib_main_t * vm, - unformat_input_t * input, vlib_cli_command_t * cmd) -{ - vnet_main_t *vnm = vnet_get_main (); - ip_interface_address_t *ia; - clib_error_t *error = 0; - u32 sw_if_index, table_id; - - sw_if_index = ~0; - - if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) - { - error = clib_error_return (0, "unknown interface `%U'", - format_unformat_error, input); - goto done; - } - - if (unformat (input, "%d", &table_id)) - ; - else - { - error = clib_error_return (0, "expected table id `%U'", - format_unformat_error, input); - goto done; - } - - /* - * If the interface already has in IP address, then a change int - * VRF is not allowed. The IP address applied must first be removed. - * We do not do that automatically here, since VPP has no knowledge - * of whether thoses subnets are valid in the destination VRF. - */ - /* *INDENT-OFF* */ - foreach_ip_interface_address (&ip4_main.lookup_main, - ia, sw_if_index, - 1 /* honor unnumbered */, - ({ - ip4_address_t * a; - - a = ip_interface_address_get_address (&ip4_main.lookup_main, ia); - error = clib_error_return (0, "interface %U has address %U", - format_vnet_sw_if_index_name, vnm, - sw_if_index, - format_ip4_address, a); - goto done; - })); - /* *INDENT-ON* */ - -{ - ip4_main_t *im = &ip4_main; - u32 fib_index; - - fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, table_id); - - vec_validate (im->fib_index_by_sw_if_index, sw_if_index); - im->fib_index_by_sw_if_index[sw_if_index] = fib_index; - - fib_index = mfib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, table_id); - vec_validate (im->mfib_index_by_sw_if_index, sw_if_index); - im->mfib_index_by_sw_if_index[sw_if_index] = fib_index; -} - -done: -return error; -} - -/*? - * Place the indicated interface into the supplied IPv4 FIB table (also known - * as a VRF). If the FIB table does not exist, this command creates it. To - * display the current IPv4 FIB table, use the command 'show ip fib'. - * FIB table will only be displayed if a route has been added to the table, or - * an IP Address is assigned to an interface in the table (which adds a route - * automatically). - * - * @note IP addresses added after setting the interface IP table are added to - * the indicated FIB table. If an IP address is added prior to changing the - * table then this is an error. The control plane must remove these addresses - * first and then change the table. VPP will not automatically move the - * addresses from the old to the new table as it does not know the validity - * of such a change. - * - * @cliexpar - * Example of how to add an interface to an IPv4 FIB table (where 2 is the table-id): - * @cliexcmd{set interface ip table GigabitEthernet2/0/0 2} - ?*/ -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (set_interface_ip_table_command, static) = -{ - .path = "set interface ip table", - .function = add_del_interface_table, - .short_help = "set interface ip table ", -}; -/* *INDENT-ON* */ - int ip4_lookup_validate (ip4_address_t * a, u32 fib_index0) { @@ -2983,16 +2912,16 @@ VLIB_CLI_COMMAND (lookup_test_command, static) = int vnet_set_ip4_flow_hash (u32 table_id, u32 flow_hash_config) { - ip4_main_t *im4 = &ip4_main; - ip4_fib_t *fib; - uword *p = hash_get (im4->fib_index_by_table_id, table_id); + u32 fib_index; + + fib_index = fib_table_find (FIB_PROTOCOL_IP4, table_id); - if (p == 0) + if (~0 == fib_index) return VNET_API_ERROR_NO_SUCH_FIB; - fib = ip4_fib_get (p[0]); + fib_table_set_flow_hash_config (fib_index, FIB_PROTOCOL_IP4, + flow_hash_config); - fib->flow_hash_config = flow_hash_config; return 0; }