X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=vnet%2Fvnet%2Fmap%2Fip4_map.c;h=1a75ca3a68bbb64b609f7399eeb72cb933ba1d9d;hb=06e3d075760be43dbd61385d3c7861cd5fe44af2;hp=7b9b3ed9d890e211b653c7ac047154276ea9ee81;hpb=9fb87553bec802552f09818c8fa2eab82c5eae92;p=vpp.git diff --git a/vnet/vnet/map/ip4_map.c b/vnet/vnet/map/ip4_map.c index 7b9b3ed9d89..1a75ca3a68b 100644 --- a/vnet/vnet/map/ip4_map.c +++ b/vnet/vnet/map/ip4_map.c @@ -22,7 +22,8 @@ vlib_node_registration_t ip4_map_reass_node; -enum ip4_map_next_e { +enum ip4_map_next_e +{ IP4_MAP_NEXT_IP6_LOOKUP, #ifdef MAP_SKIP_IP6_LOOKUP IP4_MAP_NEXT_IP6_REWRITE, @@ -35,90 +36,121 @@ enum ip4_map_next_e { IP4_MAP_N_NEXT, }; -enum ip4_map_reass_next_t { +enum ip4_map_reass_next_t +{ IP4_MAP_REASS_NEXT_IP6_LOOKUP, IP4_MAP_REASS_NEXT_IP4_FRAGMENT, IP4_MAP_REASS_NEXT_DROP, IP4_MAP_REASS_N_NEXT, }; -typedef struct { +typedef struct +{ u32 map_domain_index; u16 port; u8 cached; } map_ip4_map_reass_trace_t; u8 * -format_ip4_map_reass_trace (u8 *s, va_list *args) +format_ip4_map_reass_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 *); + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); map_ip4_map_reass_trace_t *t = va_arg (*args, map_ip4_map_reass_trace_t *); - return format(s, "MAP domain index: %d L4 port: %u Status: %s", t->map_domain_index, - t->port, t->cached?"cached":"forwarded"); + return format (s, "MAP domain index: %d L4 port: %u Status: %s", + t->map_domain_index, t->port, + t->cached ? "cached" : "forwarded"); } /* * ip4_map_get_port */ u16 -ip4_map_get_port (ip4_header_t *ip, map_dir_e dir) +ip4_map_get_port (ip4_header_t * ip, map_dir_e dir) { /* Find port information */ - if (PREDICT_TRUE((ip->protocol == IP_PROTOCOL_TCP) || - (ip->protocol == IP_PROTOCOL_UDP))) { - udp_header_t *udp = (void *)(ip + 1); - return (dir == MAP_SENDER ? udp->src_port : udp->dst_port); - } else if (ip->protocol == IP_PROTOCOL_ICMP) { - /* - * 1) ICMP Echo request or Echo reply - * 2) ICMP Error with inner packet being UDP or TCP - * 3) ICMP Error with inner packet being ICMP Echo request or Echo reply - */ - icmp46_header_t *icmp = (void *)(ip + 1); - if (icmp->type == ICMP4_echo_request || icmp->type == ICMP4_echo_reply) { - return *((u16 *)(icmp + 1)); - } else if (clib_net_to_host_u16(ip->length) >= 56) { // IP + ICMP + IP + L4 header - ip4_header_t *icmp_ip = (ip4_header_t *)(icmp + 2); - if (PREDICT_TRUE((icmp_ip->protocol == IP_PROTOCOL_TCP) || - (icmp_ip->protocol == IP_PROTOCOL_UDP))) { - udp_header_t *udp = (void *)(icmp_ip + 1); - return (dir == MAP_SENDER ? udp->dst_port : udp->src_port); - } else if (icmp_ip->protocol == IP_PROTOCOL_ICMP) { - icmp46_header_t *inner_icmp = (void *)(icmp_ip + 1); - if (inner_icmp->type == ICMP4_echo_request || inner_icmp->type == ICMP4_echo_reply) - return (*((u16 *)(inner_icmp + 1))); - } + if (PREDICT_TRUE ((ip->protocol == IP_PROTOCOL_TCP) || + (ip->protocol == IP_PROTOCOL_UDP))) + { + udp_header_t *udp = (void *) (ip + 1); + return (dir == MAP_SENDER ? udp->src_port : udp->dst_port); + } + else if (ip->protocol == IP_PROTOCOL_ICMP) + { + /* + * 1) ICMP Echo request or Echo reply + * 2) ICMP Error with inner packet being UDP or TCP + * 3) ICMP Error with inner packet being ICMP Echo request or Echo reply + */ + icmp46_header_t *icmp = (void *) (ip + 1); + if (icmp->type == ICMP4_echo_request || icmp->type == ICMP4_echo_reply) + { + return *((u16 *) (icmp + 1)); + } + else if (clib_net_to_host_u16 (ip->length) >= 56) + { // IP + ICMP + IP + L4 header + ip4_header_t *icmp_ip = (ip4_header_t *) (icmp + 2); + if (PREDICT_TRUE ((icmp_ip->protocol == IP_PROTOCOL_TCP) || + (icmp_ip->protocol == IP_PROTOCOL_UDP))) + { + udp_header_t *udp = (void *) (icmp_ip + 1); + return (dir == MAP_SENDER ? udp->dst_port : udp->src_port); + } + else if (icmp_ip->protocol == IP_PROTOCOL_ICMP) + { + icmp46_header_t *inner_icmp = (void *) (icmp_ip + 1); + if (inner_icmp->type == ICMP4_echo_request + || inner_icmp->type == ICMP4_echo_reply) + return (*((u16 *) (inner_icmp + 1))); + } + } } - } return (0); } static_always_inline u16 -ip4_map_port_and_security_check (map_domain_t *d, ip4_header_t *ip, u32 *next, u8 *error) +ip4_map_port_and_security_check (map_domain_t * d, ip4_header_t * ip, + u32 * next, u8 * error) { u16 port = 0; - if (d->psid_length > 0) { - if (!ip4_is_fragment(ip)) { - if (PREDICT_FALSE((ip->ip_version_and_header_length != 0x45) || clib_host_to_net_u16(ip->length) < 28)) { - return 0; - } - port = ip4_map_get_port(ip, MAP_RECEIVER); - if (port) { - /* Verify that port is not among the well-known ports */ - if ((d->psid_offset > 0) && (clib_net_to_host_u16(port) < (0x1 << (16 - d->psid_offset)))) { - *error = MAP_ERROR_ENCAP_SEC_CHECK; - } else { - return (port); + if (d->psid_length > 0) + { + if (ip4_get_fragment_offset (ip) == 0) + { + if (PREDICT_FALSE + ((ip->ip_version_and_header_length != 0x45) + || clib_host_to_net_u16 (ip->length) < 28)) + { + return 0; + } + port = ip4_map_get_port (ip, MAP_RECEIVER); + if (port) + { + /* Verify that port is not among the well-known ports */ + if ((d->psid_offset > 0) + && (clib_net_to_host_u16 (port) < + (0x1 << (16 - d->psid_offset)))) + { + *error = MAP_ERROR_ENCAP_SEC_CHECK; + } + else + { + if (ip4_get_fragment_more (ip)) + *next = IP4_MAP_NEXT_REASS; + return (port); + } + } + else + { + *error = MAP_ERROR_BAD_PROTOCOL; + } + } + else + { + *next = IP4_MAP_NEXT_REASS; } - } else { - *error = MAP_ERROR_BAD_PROTOCOL; - } - } else { - *next = IP4_MAP_NEXT_REASS; } - } return (0); } @@ -126,33 +158,35 @@ ip4_map_port_and_security_check (map_domain_t *d, ip4_header_t *ip, u32 *next, u * ip4_map_vtcfl */ static_always_inline u32 -ip4_map_vtcfl (ip4_header_t *ip4, vlib_buffer_t *p) +ip4_map_vtcfl (ip4_header_t * ip4, vlib_buffer_t * p) { map_main_t *mm = &map_main; u8 tc = mm->tc_copy ? ip4->tos : mm->tc; u32 vtcfl = 0x6 << 28; vtcfl |= tc << 20; - vtcfl |= vnet_buffer(p)->ip.flow_hash & 0x000fffff; + vtcfl |= vnet_buffer (p)->ip.flow_hash & 0x000fffff; - return (clib_host_to_net_u32(vtcfl)); + return (clib_host_to_net_u32 (vtcfl)); } static_always_inline bool -ip4_map_ip6_lookup_bypass (vlib_buffer_t *p0, ip4_header_t *ip) +ip4_map_ip6_lookup_bypass (vlib_buffer_t * p0, ip4_header_t * ip) { #ifdef MAP_SKIP_IP6_LOOKUP map_main_t *mm = &map_main; u32 adj_index0 = mm->adj6_index; - if (adj_index0 > 0) { - ip_lookup_main_t *lm6 = &ip6_main.lookup_main; - ip_adjacency_t *adj = ip_get_adjacency(lm6, mm->adj6_index); - if (adj->n_adj > 1) { - u32 hash_c0 = ip4_compute_flow_hash(ip, IP_FLOW_HASH_DEFAULT); - adj_index0 += (hash_c0 & (adj->n_adj - 1)); + if (adj_index0 > 0) + { + ip_lookup_main_t *lm6 = &ip6_main.lookup_main; + ip_adjacency_t *adj = ip_get_adjacency (lm6, mm->adj6_index); + if (adj->n_adj > 1) + { + u32 hash_c0 = ip4_compute_flow_hash (ip, IP_FLOW_HASH_DEFAULT); + adj_index0 += (hash_c0 & (adj->n_adj - 1)); + } + vnet_buffer (p0)->ip.adj_index[VLIB_TX] = adj_index0; + return (true); } - vnet_buffer(p0)->ip.adj_index[VLIB_TX] = adj_index0; - return (true); - } #endif return (false); } @@ -161,14 +195,14 @@ ip4_map_ip6_lookup_bypass (vlib_buffer_t *p0, ip4_header_t *ip) * ip4_map_ttl */ static inline void -ip4_map_decrement_ttl (ip4_header_t *ip, u8 *error) +ip4_map_decrement_ttl (ip4_header_t * ip, u8 * error) { i32 ttl = ip->ttl; /* Input node should have reject packets with ttl 0. */ ASSERT (ip->ttl > 0); - u32 checksum = ip->checksum + clib_host_to_net_u16(0x0100); + u32 checksum = ip->checksum + clib_host_to_net_u16 (0x0100); checksum += checksum >= 0xffff; ip->checksum = checksum; ttl -= 1; @@ -176,270 +210,356 @@ ip4_map_decrement_ttl (ip4_header_t *ip, u8 *error) *error = ttl <= 0 ? IP4_ERROR_TIME_EXPIRED : *error; /* Verify checksum. */ - ASSERT (ip->checksum == ip4_header_checksum(ip)); + ASSERT (ip->checksum == ip4_header_checksum (ip)); } static u32 -ip4_map_fragment (vlib_buffer_t *b, u16 mtu, bool df, u8 *error) +ip4_map_fragment (vlib_buffer_t * b, u16 mtu, bool df, u8 * error) { map_main_t *mm = &map_main; - if (mm->frag_inner) { - ip_frag_set_vnet_buffer(b, sizeof(ip6_header_t), mtu, IP4_FRAG_NEXT_IP6_LOOKUP, IP_FRAG_FLAG_IP6_HEADER); - return (IP4_MAP_NEXT_IP4_FRAGMENT); - } else { - if (df && !mm->frag_ignore_df) { - icmp4_error_set_vnet_buffer(b, ICMP4_destination_unreachable, - ICMP4_destination_unreachable_fragmentation_needed_and_dont_fragment_set, mtu); - vlib_buffer_advance(b, sizeof(ip6_header_t)); - *error = MAP_ERROR_DF_SET; - return (IP4_MAP_NEXT_ICMP_ERROR); + if (mm->frag_inner) + { + ip_frag_set_vnet_buffer (b, sizeof (ip6_header_t), mtu, + IP4_FRAG_NEXT_IP6_LOOKUP, + IP_FRAG_FLAG_IP6_HEADER); + return (IP4_MAP_NEXT_IP4_FRAGMENT); + } + else + { + if (df && !mm->frag_ignore_df) + { + icmp4_error_set_vnet_buffer (b, ICMP4_destination_unreachable, + ICMP4_destination_unreachable_fragmentation_needed_and_dont_fragment_set, + mtu); + vlib_buffer_advance (b, sizeof (ip6_header_t)); + *error = MAP_ERROR_DF_SET; + return (IP4_MAP_NEXT_ICMP_ERROR); + } + ip_frag_set_vnet_buffer (b, 0, mtu, IP6_FRAG_NEXT_IP6_LOOKUP, + IP_FRAG_FLAG_IP6_HEADER); + return (IP4_MAP_NEXT_IP6_FRAGMENT); } - ip_frag_set_vnet_buffer(b, 0, mtu, IP6_FRAG_NEXT_IP6_LOOKUP, IP_FRAG_FLAG_IP6_HEADER); - return (IP4_MAP_NEXT_IP6_FRAGMENT); - } } /* * ip4_map */ static uword -ip4_map (vlib_main_t *vm, - vlib_node_runtime_t *node, - vlib_frame_t *frame) +ip4_map (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { u32 n_left_from, *from, next_index, *to_next, n_left_to_next; - vlib_node_runtime_t *error_node = vlib_node_get_runtime(vm, ip4_map_node.index); - from = vlib_frame_vector_args(frame); + vlib_node_runtime_t *error_node = + vlib_node_get_runtime (vm, ip4_map_node.index); + from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; map_main_t *mm = &map_main; vlib_combined_counter_main_t *cm = mm->domain_counters; - u32 cpu_index = os_get_cpu_number(); - - while (n_left_from > 0) { - vlib_get_next_frame(vm, node, next_index, to_next, n_left_to_next); - - /* Dual loop */ - while (n_left_from >= 4 && n_left_to_next >= 2) { - u32 pi0, pi1; - vlib_buffer_t *p0, *p1; - map_domain_t *d0, *d1; - u8 error0 = MAP_ERROR_NONE, error1 = MAP_ERROR_NONE; - ip4_header_t *ip40, *ip41; - u16 port0 = 0, port1 = 0; - ip6_header_t *ip6h0, *ip6h1; - u32 map_domain_index0 = ~0, map_domain_index1 = ~0; - u32 next0 = IP4_MAP_NEXT_IP6_LOOKUP, next1 = IP4_MAP_NEXT_IP6_LOOKUP; - - /* Prefetch next iteration. */ - { - vlib_buffer_t *p2, *p3; - - p2 = vlib_get_buffer(vm, from[2]); - p3 = vlib_get_buffer(vm, from[3]); - - vlib_prefetch_buffer_header(p2, STORE); - vlib_prefetch_buffer_header(p3, STORE); - /* IPv4 + 8 = 28. possibly plus -40 */ - CLIB_PREFETCH (p2->data-40, 68, STORE); - CLIB_PREFETCH (p3->data-40, 68, STORE); - } - - pi0 = to_next[0] = from[0]; - pi1 = to_next[1] = from[1]; - from += 2; - n_left_from -= 2; - to_next +=2; - n_left_to_next -= 2; - - p0 = vlib_get_buffer(vm, pi0); - p1 = vlib_get_buffer(vm, pi1); - ip40 = vlib_buffer_get_current(p0); - ip41 = vlib_buffer_get_current(p1); - p0->current_length = clib_net_to_host_u16(ip40->length); - p1->current_length = clib_net_to_host_u16(ip41->length); - d0 = ip4_map_get_domain(vnet_buffer(p0)->ip.adj_index[VLIB_TX], &map_domain_index0); - d1 = ip4_map_get_domain(vnet_buffer(p1)->ip.adj_index[VLIB_TX], &map_domain_index1); - ASSERT(d0); - ASSERT(d1); - - /* - * Shared IPv4 address - */ - port0 = ip4_map_port_and_security_check(d0, ip40, &next0, &error0); - port1 = ip4_map_port_and_security_check(d1, ip41, &next1, &error1); - - /* Decrement IPv4 TTL */ - ip4_map_decrement_ttl(ip40, &error0); - ip4_map_decrement_ttl(ip41, &error1); - bool df0 = ip40->flags_and_fragment_offset & clib_host_to_net_u16(IP4_HEADER_FLAG_DONT_FRAGMENT); - bool df1 = ip41->flags_and_fragment_offset & clib_host_to_net_u16(IP4_HEADER_FLAG_DONT_FRAGMENT); - - /* MAP calc */ - u32 da40 = clib_net_to_host_u32(ip40->dst_address.as_u32); - u32 da41 = clib_net_to_host_u32(ip41->dst_address.as_u32); - u16 dp40 = clib_net_to_host_u16(port0); - u16 dp41 = clib_net_to_host_u16(port1); - u64 dal60 = map_get_pfx(d0, da40, dp40); - u64 dal61 = map_get_pfx(d1, da41, dp41); - u64 dar60 = map_get_sfx(d0, da40, dp40); - u64 dar61 = map_get_sfx(d1, da41, dp41); - if (dal60 == 0 && dar60 == 0) error0 = MAP_ERROR_NO_BINDING; - if (dal61 == 0 && dar61 == 0) error1 = MAP_ERROR_NO_BINDING; - - /* construct ipv6 header */ - vlib_buffer_advance(p0, - sizeof(ip6_header_t)); - vlib_buffer_advance(p1, - sizeof(ip6_header_t)); - ip6h0 = vlib_buffer_get_current(p0); - ip6h1 = vlib_buffer_get_current(p1); - vnet_buffer(p0)->sw_if_index[VLIB_TX] = (u32)~0; - vnet_buffer(p1)->sw_if_index[VLIB_TX] = (u32)~0; - - ip6h0->ip_version_traffic_class_and_flow_label = ip4_map_vtcfl(ip40, p0); - ip6h1->ip_version_traffic_class_and_flow_label = ip4_map_vtcfl(ip41, p1); - ip6h0->payload_length = ip40->length; - ip6h1->payload_length = ip41->length; - ip6h0->protocol = IP_PROTOCOL_IP_IN_IP; - ip6h1->protocol = IP_PROTOCOL_IP_IN_IP; - ip6h0->hop_limit = 0x40; - ip6h1->hop_limit = 0x40; - ip6h0->src_address = d0->ip6_src; - ip6h1->src_address = d1->ip6_src; - ip6h0->dst_address.as_u64[0] = clib_host_to_net_u64(dal60); - ip6h0->dst_address.as_u64[1] = clib_host_to_net_u64(dar60); - ip6h1->dst_address.as_u64[0] = clib_host_to_net_u64(dal61); - ip6h1->dst_address.as_u64[1] = clib_host_to_net_u64(dar61); - - /* - * Determine next node. Can be one of: - * ip6-lookup, ip6-rewrite, ip4-fragment, ip4-virtreass, error-drop - */ - if (PREDICT_TRUE(error0 == MAP_ERROR_NONE)) { - if (PREDICT_FALSE(d0->mtu && (clib_net_to_host_u16(ip6h0->payload_length) + sizeof(*ip6h0) > d0->mtu))) { - next0 = ip4_map_fragment(p0, d0->mtu, df0, &error0); - } else { - next0 = ip4_map_ip6_lookup_bypass(p0, ip40) ? IP4_MAP_NEXT_IP6_REWRITE : next0; - vlib_increment_combined_counter(cm + MAP_DOMAIN_COUNTER_TX, cpu_index, map_domain_index0, 1, - clib_net_to_host_u16(ip6h0->payload_length) + 40); + u32 cpu_index = os_get_cpu_number (); + + while (n_left_from > 0) + { + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + u32 pi0, pi1; + vlib_buffer_t *p0, *p1; + map_domain_t *d0, *d1; + u8 error0 = MAP_ERROR_NONE, error1 = MAP_ERROR_NONE; + ip4_header_t *ip40, *ip41; + u16 port0 = 0, port1 = 0; + ip6_header_t *ip6h0, *ip6h1; + u32 map_domain_index0 = ~0, map_domain_index1 = ~0; + u32 next0 = IP4_MAP_NEXT_IP6_LOOKUP, next1 = + IP4_MAP_NEXT_IP6_LOOKUP; + + /* Prefetch next iteration. */ + { + vlib_buffer_t *p2, *p3; + + p2 = vlib_get_buffer (vm, from[2]); + p3 = vlib_get_buffer (vm, from[3]); + + vlib_prefetch_buffer_header (p2, STORE); + vlib_prefetch_buffer_header (p3, STORE); + /* IPv4 + 8 = 28. possibly plus -40 */ + CLIB_PREFETCH (p2->data - 40, 68, STORE); + CLIB_PREFETCH (p3->data - 40, 68, STORE); + } + + pi0 = to_next[0] = from[0]; + pi1 = to_next[1] = from[1]; + from += 2; + n_left_from -= 2; + to_next += 2; + n_left_to_next -= 2; + + p0 = vlib_get_buffer (vm, pi0); + p1 = vlib_get_buffer (vm, pi1); + ip40 = vlib_buffer_get_current (p0); + ip41 = vlib_buffer_get_current (p1); + d0 = + ip4_map_get_domain (vnet_buffer (p0)->ip.adj_index[VLIB_TX], + &map_domain_index0); + d1 = + ip4_map_get_domain (vnet_buffer (p1)->ip.adj_index[VLIB_TX], + &map_domain_index1); + ASSERT (d0); + ASSERT (d1); + + /* + * Shared IPv4 address + */ + port0 = ip4_map_port_and_security_check (d0, ip40, &next0, &error0); + port1 = ip4_map_port_and_security_check (d1, ip41, &next1, &error1); + + /* Decrement IPv4 TTL */ + ip4_map_decrement_ttl (ip40, &error0); + ip4_map_decrement_ttl (ip41, &error1); + bool df0 = + ip40-> + flags_and_fragment_offset & + clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT); + bool df1 = + ip41-> + flags_and_fragment_offset & + clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT); + + /* MAP calc */ + u32 da40 = clib_net_to_host_u32 (ip40->dst_address.as_u32); + u32 da41 = clib_net_to_host_u32 (ip41->dst_address.as_u32); + u16 dp40 = clib_net_to_host_u16 (port0); + u16 dp41 = clib_net_to_host_u16 (port1); + u64 dal60 = map_get_pfx (d0, da40, dp40); + u64 dal61 = map_get_pfx (d1, da41, dp41); + u64 dar60 = map_get_sfx (d0, da40, dp40); + u64 dar61 = map_get_sfx (d1, da41, dp41); + if (dal60 == 0 && dar60 == 0 && error0 == MAP_ERROR_NONE + && next0 != IP4_MAP_NEXT_REASS) + error0 = MAP_ERROR_NO_BINDING; + if (dal61 == 0 && dar61 == 0 && error1 == MAP_ERROR_NONE + && next1 != IP4_MAP_NEXT_REASS) + error1 = MAP_ERROR_NO_BINDING; + + /* construct ipv6 header */ + vlib_buffer_advance (p0, -sizeof (ip6_header_t)); + vlib_buffer_advance (p1, -sizeof (ip6_header_t)); + ip6h0 = vlib_buffer_get_current (p0); + ip6h1 = vlib_buffer_get_current (p1); + vnet_buffer (p0)->sw_if_index[VLIB_TX] = (u32) ~ 0; + vnet_buffer (p1)->sw_if_index[VLIB_TX] = (u32) ~ 0; + + ip6h0->ip_version_traffic_class_and_flow_label = + ip4_map_vtcfl (ip40, p0); + ip6h1->ip_version_traffic_class_and_flow_label = + ip4_map_vtcfl (ip41, p1); + ip6h0->payload_length = ip40->length; + ip6h1->payload_length = ip41->length; + ip6h0->protocol = IP_PROTOCOL_IP_IN_IP; + ip6h1->protocol = IP_PROTOCOL_IP_IN_IP; + ip6h0->hop_limit = 0x40; + ip6h1->hop_limit = 0x40; + ip6h0->src_address = d0->ip6_src; + ip6h1->src_address = d1->ip6_src; + ip6h0->dst_address.as_u64[0] = clib_host_to_net_u64 (dal60); + ip6h0->dst_address.as_u64[1] = clib_host_to_net_u64 (dar60); + ip6h1->dst_address.as_u64[0] = clib_host_to_net_u64 (dal61); + ip6h1->dst_address.as_u64[1] = clib_host_to_net_u64 (dar61); + + /* + * Determine next node. Can be one of: + * ip6-lookup, ip6-rewrite, ip4-fragment, ip4-virtreass, error-drop + */ + if (PREDICT_TRUE (error0 == MAP_ERROR_NONE)) + { + if (PREDICT_FALSE + (d0->mtu + && (clib_net_to_host_u16 (ip6h0->payload_length) + + sizeof (*ip6h0) > d0->mtu))) + { + next0 = ip4_map_fragment (p0, d0->mtu, df0, &error0); + } + else + { + next0 = + ip4_map_ip6_lookup_bypass (p0, + ip40) ? + IP4_MAP_NEXT_IP6_REWRITE : next0; + vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_TX, + cpu_index, + map_domain_index0, 1, + clib_net_to_host_u16 + (ip6h0->payload_length) + + 40); + } + } + else + { + next0 = IP4_MAP_NEXT_DROP; + } + + /* + * Determine next node. Can be one of: + * ip6-lookup, ip6-rewrite, ip4-fragment, ip4-virtreass, error-drop + */ + if (PREDICT_TRUE (error1 == MAP_ERROR_NONE)) + { + if (PREDICT_FALSE + (d1->mtu + && (clib_net_to_host_u16 (ip6h1->payload_length) + + sizeof (*ip6h1) > d1->mtu))) + { + next1 = ip4_map_fragment (p1, d1->mtu, df1, &error1); + } + else + { + next1 = + ip4_map_ip6_lookup_bypass (p1, + ip41) ? + IP4_MAP_NEXT_IP6_REWRITE : next1; + vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_TX, + cpu_index, + map_domain_index1, 1, + clib_net_to_host_u16 + (ip6h1->payload_length) + + 40); + } + } + else + { + next1 = IP4_MAP_NEXT_DROP; + } + + if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED)) + { + map_trace_t *tr = vlib_add_trace (vm, node, p0, sizeof (*tr)); + tr->map_domain_index = map_domain_index0; + tr->port = port0; + } + if (PREDICT_FALSE (p1->flags & VLIB_BUFFER_IS_TRACED)) + { + map_trace_t *tr = vlib_add_trace (vm, node, p1, sizeof (*tr)); + tr->map_domain_index = map_domain_index1; + tr->port = port1; + } + + p0->error = error_node->errors[error0]; + p1->error = error_node->errors[error1]; + + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next, + n_left_to_next, pi0, pi1, next0, + next1); } - } else { - next0 = IP4_MAP_NEXT_DROP; - } - /* - * Determine next node. Can be one of: - * ip6-lookup, ip6-rewrite, ip4-fragment, ip4-virtreass, error-drop - */ - if (PREDICT_TRUE(error1 == MAP_ERROR_NONE)) { - if (PREDICT_FALSE(d1->mtu && (clib_net_to_host_u16(ip6h1->payload_length) + sizeof(*ip6h1) > d1->mtu))) { - next1 = ip4_map_fragment(p1, d1->mtu, df1, &error1); - } else { - next1 = ip4_map_ip6_lookup_bypass(p1, ip41) ? IP4_MAP_NEXT_IP6_REWRITE : next1; - vlib_increment_combined_counter(cm + MAP_DOMAIN_COUNTER_TX, cpu_index, map_domain_index1, 1, - clib_net_to_host_u16(ip6h1->payload_length) + 40); + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 pi0; + vlib_buffer_t *p0; + map_domain_t *d0; + u8 error0 = MAP_ERROR_NONE; + ip4_header_t *ip40; + u16 port0 = 0; + ip6_header_t *ip6h0; + u32 next0 = IP4_MAP_NEXT_IP6_LOOKUP; + u32 map_domain_index0 = ~0; + + pi0 = to_next[0] = from[0]; + from += 1; + n_left_from -= 1; + to_next += 1; + n_left_to_next -= 1; + + p0 = vlib_get_buffer (vm, pi0); + ip40 = vlib_buffer_get_current (p0); + d0 = + ip4_map_get_domain (vnet_buffer (p0)->ip.adj_index[VLIB_TX], + &map_domain_index0); + ASSERT (d0); + + /* + * Shared IPv4 address + */ + port0 = ip4_map_port_and_security_check (d0, ip40, &next0, &error0); + + /* Decrement IPv4 TTL */ + ip4_map_decrement_ttl (ip40, &error0); + bool df0 = + ip40-> + flags_and_fragment_offset & + clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT); + + /* MAP calc */ + u32 da40 = clib_net_to_host_u32 (ip40->dst_address.as_u32); + u16 dp40 = clib_net_to_host_u16 (port0); + u64 dal60 = map_get_pfx (d0, da40, dp40); + u64 dar60 = map_get_sfx (d0, da40, dp40); + if (dal60 == 0 && dar60 == 0 && error0 == MAP_ERROR_NONE + && next0 != IP4_MAP_NEXT_REASS) + error0 = MAP_ERROR_NO_BINDING; + + /* construct ipv6 header */ + vlib_buffer_advance (p0, -(sizeof (ip6_header_t))); + ip6h0 = vlib_buffer_get_current (p0); + vnet_buffer (p0)->sw_if_index[VLIB_TX] = (u32) ~ 0; + + ip6h0->ip_version_traffic_class_and_flow_label = + ip4_map_vtcfl (ip40, p0); + ip6h0->payload_length = ip40->length; + ip6h0->protocol = IP_PROTOCOL_IP_IN_IP; + ip6h0->hop_limit = 0x40; + ip6h0->src_address = d0->ip6_src; + ip6h0->dst_address.as_u64[0] = clib_host_to_net_u64 (dal60); + ip6h0->dst_address.as_u64[1] = clib_host_to_net_u64 (dar60); + + /* + * Determine next node. Can be one of: + * ip6-lookup, ip6-rewrite, ip4-fragment, ip4-virtreass, error-drop + */ + if (PREDICT_TRUE (error0 == MAP_ERROR_NONE)) + { + if (PREDICT_FALSE + (d0->mtu + && (clib_net_to_host_u16 (ip6h0->payload_length) + + sizeof (*ip6h0) > d0->mtu))) + { + next0 = ip4_map_fragment (p0, d0->mtu, df0, &error0); + } + else + { + next0 = + ip4_map_ip6_lookup_bypass (p0, + ip40) ? + IP4_MAP_NEXT_IP6_REWRITE : next0; + vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_TX, + cpu_index, + map_domain_index0, 1, + clib_net_to_host_u16 + (ip6h0->payload_length) + + 40); + } + } + else + { + next0 = IP4_MAP_NEXT_DROP; + } + + if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED)) + { + map_trace_t *tr = vlib_add_trace (vm, node, p0, sizeof (*tr)); + tr->map_domain_index = map_domain_index0; + tr->port = port0; + } + + p0->error = error_node->errors[error0]; + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, + n_left_to_next, pi0, next0); } - } else { - next1 = IP4_MAP_NEXT_DROP; - } - - if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED)) { - map_trace_t *tr = vlib_add_trace(vm, node, p0, sizeof(*tr)); - tr->map_domain_index = map_domain_index0; - tr->port = port0; - } - if (PREDICT_FALSE(p1->flags & VLIB_BUFFER_IS_TRACED)) { - map_trace_t *tr = vlib_add_trace(vm, node, p1, sizeof(*tr)); - tr->map_domain_index = map_domain_index1; - tr->port = port1; - } - - p0->error = error_node->errors[error0]; - p1->error = error_node->errors[error1]; - - vlib_validate_buffer_enqueue_x2(vm, node, next_index, to_next, n_left_to_next, pi0, pi1, next0, next1); + vlib_put_next_frame (vm, node, next_index, n_left_to_next); } - while (n_left_from > 0 && n_left_to_next > 0) { - u32 pi0; - vlib_buffer_t *p0; - map_domain_t *d0; - u8 error0 = MAP_ERROR_NONE; - ip4_header_t *ip40; - u16 port0 = 0; - ip6_header_t *ip6h0; - u32 next0 = IP4_MAP_NEXT_IP6_LOOKUP; - u32 map_domain_index0 = ~0; - - pi0 = to_next[0] = from[0]; - from += 1; - n_left_from -= 1; - to_next +=1; - n_left_to_next -= 1; - - p0 = vlib_get_buffer(vm, pi0); - ip40 = vlib_buffer_get_current(p0); - p0->current_length = clib_net_to_host_u16(ip40->length); - d0 = ip4_map_get_domain(vnet_buffer(p0)->ip.adj_index[VLIB_TX], &map_domain_index0); - ASSERT(d0); - - /* - * Shared IPv4 address - */ - port0 = ip4_map_port_and_security_check(d0, ip40, &next0, &error0); - - /* Decrement IPv4 TTL */ - ip4_map_decrement_ttl(ip40, &error0); - bool df0 = ip40->flags_and_fragment_offset & clib_host_to_net_u16(IP4_HEADER_FLAG_DONT_FRAGMENT); - - /* MAP calc */ - u32 da40 = clib_net_to_host_u32(ip40->dst_address.as_u32); - u16 dp40 = clib_net_to_host_u16(port0); - u64 dal60 = map_get_pfx(d0, da40, dp40); - u64 dar60 = map_get_sfx(d0, da40, dp40); - if (dal60 == 0 && dar60 == 0 && error0 == MAP_ERROR_NONE) error0 = MAP_ERROR_NO_BINDING; - - /* construct ipv6 header */ - vlib_buffer_advance(p0, - (sizeof(ip6_header_t))); - ip6h0 = vlib_buffer_get_current(p0); - vnet_buffer(p0)->sw_if_index[VLIB_TX] = (u32)~0; - - ip6h0->ip_version_traffic_class_and_flow_label = ip4_map_vtcfl(ip40, p0); - ip6h0->payload_length = ip40->length; - ip6h0->protocol = IP_PROTOCOL_IP_IN_IP; - ip6h0->hop_limit = 0x40; - ip6h0->src_address = d0->ip6_src; - ip6h0->dst_address.as_u64[0] = clib_host_to_net_u64(dal60); - ip6h0->dst_address.as_u64[1] = clib_host_to_net_u64(dar60); - - /* - * Determine next node. Can be one of: - * ip6-lookup, ip6-rewrite, ip4-fragment, ip4-virtreass, error-drop - */ - if (PREDICT_TRUE(error0 == MAP_ERROR_NONE)) { - if (PREDICT_FALSE(d0->mtu && (clib_net_to_host_u16(ip6h0->payload_length) + sizeof(*ip6h0) > d0->mtu))) { - next0 = ip4_map_fragment(p0, d0->mtu, df0, &error0); - } else { - next0 = ip4_map_ip6_lookup_bypass(p0, ip40) ? IP4_MAP_NEXT_IP6_REWRITE : next0; - vlib_increment_combined_counter(cm + MAP_DOMAIN_COUNTER_TX, cpu_index, map_domain_index0, 1, - clib_net_to_host_u16(ip6h0->payload_length) + 40); - } - } else { - next0 = IP4_MAP_NEXT_DROP; - } - - if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED)) { - map_trace_t *tr = vlib_add_trace(vm, node, p0, sizeof(*tr)); - tr->map_domain_index = map_domain_index0; - tr->port = port0; - } - - p0->error = error_node->errors[error0]; - 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); - } - return frame->n_vectors; } @@ -447,143 +567,192 @@ ip4_map (vlib_main_t *vm, * ip4_map_reass */ static uword -ip4_map_reass (vlib_main_t *vm, - vlib_node_runtime_t *node, - vlib_frame_t *frame) +ip4_map_reass (vlib_main_t * vm, + vlib_node_runtime_t * node, vlib_frame_t * frame) { u32 n_left_from, *from, next_index, *to_next, n_left_to_next; - vlib_node_runtime_t *error_node = vlib_node_get_runtime(vm, ip4_map_reass_node.index); - from = vlib_frame_vector_args(frame); + vlib_node_runtime_t *error_node = + vlib_node_get_runtime (vm, ip4_map_reass_node.index); + from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; map_main_t *mm = &map_main; vlib_combined_counter_main_t *cm = mm->domain_counters; - u32 cpu_index = os_get_cpu_number(); + u32 cpu_index = os_get_cpu_number (); u32 *fragments_to_drop = NULL; u32 *fragments_to_loopback = NULL; - while (n_left_from > 0) { - 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 pi0; - vlib_buffer_t *p0; - map_domain_t *d0; - u8 error0 = MAP_ERROR_NONE; - ip4_header_t *ip40; - i32 port0 = 0; - ip6_header_t *ip60; - u32 next0 = IP4_MAP_REASS_NEXT_IP6_LOOKUP; - u32 map_domain_index0; - u8 cached = 0; - - pi0 = to_next[0] = from[0]; - from += 1; - n_left_from -= 1; - to_next +=1; - n_left_to_next -= 1; - - p0 = vlib_get_buffer(vm, pi0); - ip60 = vlib_buffer_get_current(p0); - ip40 = (ip4_header_t *)(ip60 + 1); - d0 = ip4_map_get_domain(vnet_buffer(p0)->ip.adj_index[VLIB_TX], &map_domain_index0); - - map_ip4_reass_lock(); - map_ip4_reass_t *r = map_ip4_reass_get(ip40->src_address.as_u32, ip40->dst_address.as_u32, - ip40->fragment_id, ip40->protocol, &fragments_to_drop); - if (PREDICT_FALSE(!r)) { - // Could not create a caching entry - error0 = MAP_ERROR_FRAGMENT_MEMORY; - } else if (PREDICT_TRUE(ip4_get_fragment_offset(ip40))) { - if (r->port >= 0) { - // We know the port already - port0 = r->port; - } else if (map_ip4_reass_add_fragment(r, pi0)) { - // Not enough space for caching - error0 = MAP_ERROR_FRAGMENT_MEMORY; - map_ip4_reass_free(r, &fragments_to_drop); - } else { - cached = 1; - } - } else if ((port0 = ip4_get_port(ip40, MAP_RECEIVER, p0->current_length)) < 0) { - // Could not find port. We'll free the reassembly. - error0 = MAP_ERROR_BAD_PROTOCOL; - port0 = 0; - map_ip4_reass_free(r, &fragments_to_drop); - } else { - r->port = port0; - map_ip4_reass_get_fragments(r, &fragments_to_loopback); - } + while (n_left_from > 0) + { + 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 pi0; + vlib_buffer_t *p0; + map_domain_t *d0; + u8 error0 = MAP_ERROR_NONE; + ip4_header_t *ip40; + i32 port0 = 0; + ip6_header_t *ip60; + u32 next0 = IP4_MAP_REASS_NEXT_IP6_LOOKUP; + u32 map_domain_index0; + u8 cached = 0; + + pi0 = to_next[0] = from[0]; + from += 1; + n_left_from -= 1; + to_next += 1; + n_left_to_next -= 1; + + p0 = vlib_get_buffer (vm, pi0); + ip60 = vlib_buffer_get_current (p0); + ip40 = (ip4_header_t *) (ip60 + 1); + d0 = + ip4_map_get_domain (vnet_buffer (p0)->ip.adj_index[VLIB_TX], + &map_domain_index0); + + map_ip4_reass_lock (); + map_ip4_reass_t *r = + map_ip4_reass_get (ip40->src_address.as_u32, + ip40->dst_address.as_u32, + ip40->fragment_id, ip40->protocol, + &fragments_to_drop); + if (PREDICT_FALSE (!r)) + { + // Could not create a caching entry + error0 = MAP_ERROR_FRAGMENT_MEMORY; + } + else if (PREDICT_TRUE (ip4_get_fragment_offset (ip40))) + { + if (r->port >= 0) + { + // We know the port already + port0 = r->port; + } + else if (map_ip4_reass_add_fragment (r, pi0)) + { + // Not enough space for caching + error0 = MAP_ERROR_FRAGMENT_MEMORY; + map_ip4_reass_free (r, &fragments_to_drop); + } + else + { + cached = 1; + } + } + else + if ((port0 = + ip4_get_port (ip40, MAP_RECEIVER, p0->current_length)) < 0) + { + // Could not find port. We'll free the reassembly. + error0 = MAP_ERROR_BAD_PROTOCOL; + port0 = 0; + map_ip4_reass_free (r, &fragments_to_drop); + } + else + { + r->port = port0; + map_ip4_reass_get_fragments (r, &fragments_to_loopback); + } #ifdef MAP_IP4_REASS_COUNT_BYTES - if (!cached && r) { - r->forwarded += clib_host_to_net_u16(ip40->length) - 20; - if (!ip4_get_fragment_more(ip40)) - r->expected_total = ip4_get_fragment_offset(ip40) * 8 + clib_host_to_net_u16(ip40->length) - 20; - if(r->forwarded >= r->expected_total) - map_ip4_reass_free(r, &fragments_to_drop); - } + if (!cached && r) + { + r->forwarded += clib_host_to_net_u16 (ip40->length) - 20; + if (!ip4_get_fragment_more (ip40)) + r->expected_total = + ip4_get_fragment_offset (ip40) * 8 + + clib_host_to_net_u16 (ip40->length) - 20; + if (r->forwarded >= r->expected_total) + map_ip4_reass_free (r, &fragments_to_drop); + } #endif - map_ip4_reass_unlock(); - - // NOTE: Most operations have already been performed by ip4_map - // All we need is the right destination address - ip60->dst_address.as_u64[0] = map_get_pfx_net(d0, ip40->dst_address.as_u32, port0); - ip60->dst_address.as_u64[1] = map_get_sfx_net(d0, ip40->dst_address.as_u32, port0); - - if (PREDICT_FALSE(d0->mtu && (clib_net_to_host_u16(ip60->payload_length) + sizeof(*ip60) > d0->mtu))) { - vnet_buffer(p0)->ip_frag.header_offset = sizeof(*ip60); - vnet_buffer(p0)->ip_frag.next_index = IP4_FRAG_NEXT_IP6_LOOKUP; - vnet_buffer(p0)->ip_frag.mtu = d0->mtu; - vnet_buffer(p0)->ip_frag.flags = IP_FRAG_FLAG_IP6_HEADER; - next0 = IP4_MAP_REASS_NEXT_IP4_FRAGMENT; - } - - if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED)) { - map_ip4_map_reass_trace_t *tr = vlib_add_trace(vm, node, p0, sizeof(*tr)); - tr->map_domain_index = map_domain_index0; - tr->port = port0; - tr->cached = cached; - } - - if(cached) { - //Dequeue the packet - n_left_to_next++; - to_next--; - } else { - if (error0 == MAP_ERROR_NONE) - vlib_increment_combined_counter(cm + MAP_DOMAIN_COUNTER_TX, cpu_index, map_domain_index0, 1, - clib_net_to_host_u16(ip60->payload_length) + 40); - next0 = (error0 == MAP_ERROR_NONE) ? next0 : IP4_MAP_REASS_NEXT_DROP; - p0->error = error_node->errors[error0]; - vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next, n_left_to_next, pi0, next0); - } - - //Loopback when we reach the end of the inpu vector - 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) { - memcpy(from, fragments_to_loopback, sizeof(u32)*len); - n_left_from = len; - vec_reset_length(fragments_to_loopback); - } else { - 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; - } - } + map_ip4_reass_unlock (); + + // NOTE: Most operations have already been performed by ip4_map + // All we need is the right destination address + ip60->dst_address.as_u64[0] = + map_get_pfx_net (d0, ip40->dst_address.as_u32, port0); + ip60->dst_address.as_u64[1] = + map_get_sfx_net (d0, ip40->dst_address.as_u32, port0); + + if (PREDICT_FALSE + (d0->mtu + && (clib_net_to_host_u16 (ip60->payload_length) + + sizeof (*ip60) > d0->mtu))) + { + vnet_buffer (p0)->ip_frag.header_offset = sizeof (*ip60); + vnet_buffer (p0)->ip_frag.next_index = IP4_FRAG_NEXT_IP6_LOOKUP; + vnet_buffer (p0)->ip_frag.mtu = d0->mtu; + vnet_buffer (p0)->ip_frag.flags = IP_FRAG_FLAG_IP6_HEADER; + next0 = IP4_MAP_REASS_NEXT_IP4_FRAGMENT; + } + + if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED)) + { + map_ip4_map_reass_trace_t *tr = + vlib_add_trace (vm, node, p0, sizeof (*tr)); + tr->map_domain_index = map_domain_index0; + tr->port = port0; + tr->cached = cached; + } + + if (cached) + { + //Dequeue the packet + n_left_to_next++; + to_next--; + } + else + { + if (error0 == MAP_ERROR_NONE) + vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_TX, + cpu_index, map_domain_index0, + 1, + clib_net_to_host_u16 (ip60-> + payload_length) + + 40); + next0 = + (error0 == MAP_ERROR_NONE) ? next0 : IP4_MAP_REASS_NEXT_DROP; + p0->error = error_node->errors[error0]; + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, + n_left_to_next, pi0, next0); + } + + //Loopback when we reach the end of the inpu vector + 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); } - vlib_put_next_frame(vm, node, next_index, n_left_to_next); - } - map_send_all_to_node(vm, fragments_to_drop, node, - &error_node->errors[MAP_ERROR_FRAGMENT_DROPPED], - IP4_MAP_REASS_NEXT_DROP); + map_send_all_to_node (vm, fragments_to_drop, node, + &error_node->errors[MAP_ERROR_FRAGMENT_DROPPED], + IP4_MAP_REASS_NEXT_DROP); - vec_free(fragments_to_drop); - vec_free(fragments_to_loopback); + vec_free (fragments_to_drop); + vec_free (fragments_to_loopback); return frame->n_vectors; } @@ -593,6 +762,7 @@ static char *map_error_strings[] = { #undef _ }; +/* *INDENT-OFF* */ VLIB_REGISTER_NODE(ip4_map_node) = { .function = ip4_map, .name = "ip4-map", @@ -616,7 +786,9 @@ VLIB_REGISTER_NODE(ip4_map_node) = { [IP4_MAP_NEXT_DROP] = "error-drop", }, }; +/* *INDENT-ON* */ +/* *INDENT-OFF* */ VLIB_REGISTER_NODE(ip4_map_reass_node) = { .function = ip4_map_reass, .name = "ip4-map-reass", @@ -634,3 +806,12 @@ VLIB_REGISTER_NODE(ip4_map_reass_node) = { [IP4_MAP_REASS_NEXT_DROP] = "error-drop", }, }; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */