X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fplugins%2Fmap%2Fip6_map.c;fp=src%2Fplugins%2Fmap%2Fip6_map.c;h=492d5f83927566af518ff7c1ee81b045b6323629;hb=a025b3ea353b5c5c356efda0888d75a2ab8979e0;hp=d9db602bad84252e2b621e61e77b021540240607;hpb=de34c35fc73226943538149fae9dbc5cfbdc6e75;p=vpp.git diff --git a/src/plugins/map/ip6_map.c b/src/plugins/map/ip6_map.c index d9db602bad8..492d5f83927 100644 --- a/src/plugins/map/ip6_map.c +++ b/src/plugins/map/ip6_map.c @@ -17,6 +17,7 @@ #include #include #include +#include enum ip6_map_next_e { @@ -41,12 +42,12 @@ enum ip6_map_ip6_reass_next_e IP6_MAP_IP6_REASS_N_NEXT, }; -enum ip6_map_ip4_reass_next_e +enum ip6_map_post_ip4_reass_next_e { - IP6_MAP_IP4_REASS_NEXT_IP4_LOOKUP, - IP6_MAP_IP4_REASS_NEXT_IP4_FRAGMENT, - IP6_MAP_IP4_REASS_NEXT_DROP, - IP6_MAP_IP4_REASS_N_NEXT, + IP6_MAP_POST_IP4_REASS_NEXT_IP4_LOOKUP, + IP6_MAP_POST_IP4_REASS_NEXT_IP4_FRAGMENT, + IP6_MAP_POST_IP4_REASS_NEXT_DROP, + IP6_MAP_POST_IP4_REASS_N_NEXT, }; enum ip6_icmp_relay_next_e @@ -56,7 +57,7 @@ enum ip6_icmp_relay_next_e IP6_ICMP_RELAY_N_NEXT, }; -vlib_node_registration_t ip6_map_ip4_reass_node; +vlib_node_registration_t ip6_map_post_ip4_reass_node; vlib_node_registration_t ip6_map_ip6_reass_node; static vlib_node_registration_t ip6_map_icmp_relay_node; @@ -68,14 +69,14 @@ typedef struct } map_ip6_map_ip4_reass_trace_t; u8 * -format_ip6_map_ip4_reass_trace (u8 * s, va_list * args) +format_ip6_map_post_ip4_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 *); map_ip6_map_ip4_reass_trace_t *t = va_arg (*args, map_ip6_map_ip4_reass_trace_t *); return format (s, "MAP domain index: %d L4 port: %u Status: %s", - t->map_domain_index, t->port, + t->map_domain_index, clib_net_to_host_u16 (t->port), t->cached ? "cached" : "forwarded"); } @@ -117,8 +118,9 @@ ip6_map_sec_check (map_domain_t * d, u16 port, ip4_header_t * ip4, } static_always_inline void -ip6_map_security_check (map_domain_t * d, ip4_header_t * ip4, - ip6_header_t * ip6, u32 * next, u8 * error) +ip6_map_security_check (map_domain_t * d, vlib_buffer_t * b0, + ip4_header_t * ip4, ip6_header_t * ip6, u32 * next, + u8 * error) { map_main_t *mm = &map_main; if (d->ea_bits_len || d->rules) @@ -143,7 +145,12 @@ ip6_map_security_check (map_domain_t * d, ip4_header_t * ip4, } else { - *next = mm->sec_check_frag ? IP6_MAP_NEXT_IP4_REASS : *next; + if (mm->sec_check_frag) + { + vnet_buffer (b0)->ip.reass.next_index = + map_main.ip4_sv_reass_custom_next_index; + *next = IP6_MAP_NEXT_IP4_REASS; + } } } } @@ -297,7 +304,7 @@ ip6_map (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) if (d0) { /* MAP inbound security check */ - ip6_map_security_check (d0, ip40, ip60, &next0, &error0); + ip6_map_security_check (d0, p0, ip40, ip60, &next0, &error0); if (PREDICT_TRUE (error0 == MAP_ERROR_NONE && next0 == IP6_MAP_NEXT_IP4_LOOKUP)) @@ -329,7 +336,7 @@ ip6_map (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) if (d1) { /* MAP inbound security check */ - ip6_map_security_check (d1, ip41, ip61, &next1, &error1); + ip6_map_security_check (d1, p1, ip41, ip61, &next1, &error1); if (PREDICT_TRUE (error1 == MAP_ERROR_NONE && next1 == IP6_MAP_NEXT_IP4_LOOKUP)) @@ -484,7 +491,7 @@ ip6_map (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) if (d0) { /* MAP inbound security check */ - ip6_map_security_check (d0, ip40, ip60, &next0, &error0); + ip6_map_security_check (d0, p0, ip40, ip60, &next0, &error0); if (PREDICT_TRUE (error0 == MAP_ERROR_NONE && next0 == IP6_MAP_NEXT_IP4_LOOKUP)) @@ -657,15 +664,6 @@ map_ip6_drop_pi (u32 pi) vlib_set_next_frame_buffer (vm, n, IP6_MAP_IP6_REASS_NEXT_DROP, pi); } -void -map_ip4_drop_pi (u32 pi) -{ - vlib_main_t *vm = vlib_get_main (); - vlib_node_runtime_t *n = - vlib_node_get_runtime (vm, ip6_map_ip4_reass_node.index); - vlib_set_next_frame_buffer (vm, n, IP6_MAP_IP4_REASS_NEXT_DROP, pi); -} - /* * ip6_reass * TODO: We should count the number of successfully @@ -811,20 +809,18 @@ ip6_map_ip6_reass (vlib_main_t * vm, } /* - * ip6_map_ip4_reass + * ip6_map_post_ip4_reass */ static uword -ip6_map_ip4_reass (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) +ip6_map_post_ip4_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, ip6_map_ip4_reass_node.index); + vlib_node_get_runtime (vm, ip6_map_post_ip4_reass_node.index); map_main_t *mm = &map_main; vlib_combined_counter_main_t *cm = mm->domain_counters; u32 thread_index = vm->thread_index; - u32 *fragments_to_drop = NULL; - u32 *fragments_to_loopback = NULL; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; @@ -844,8 +840,7 @@ ip6_map_ip4_reass (vlib_main_t * vm, ip6_header_t *ip60; i32 port0 = 0; u32 map_domain_index0 = ~0; - u32 next0 = IP6_MAP_IP4_REASS_NEXT_IP4_LOOKUP; - u8 cached = 0; + u32 next0 = IP6_MAP_POST_IP4_REASS_NEXT_IP4_LOOKUP; pi0 = to_next[0] = from[0]; from += 1; @@ -861,65 +856,7 @@ ip6_map_ip4_reass (vlib_main_t * vm, ip4_map_get_domain ((ip4_address_t *) & ip40->src_address.as_u32, &map_domain_index0, &error0); - map_ip4_reass_lock (); - //This node only deals with fragmented ip4 - 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))) - { - // This is a fragment - 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, 1)) == 0) - { - // Could not find port from first fragment. Stop reassembling. - error0 = MAP_ERROR_BAD_PROTOCOL; - port0 = 0; - map_ip4_reass_free (r, &fragments_to_drop); - } - else - { - // Found port. Remember it and loopback saved fragments - 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); - } -#endif - - map_ip4_reass_unlock (); + port0 = vnet_buffer (p0)->ip.reass.l4_src_port; if (PREDICT_TRUE (error0 == MAP_ERROR_NONE)) error0 = @@ -929,12 +866,12 @@ ip6_map_ip4_reass (vlib_main_t * vm, if (PREDICT_FALSE (d0->mtu && (clib_host_to_net_u16 (ip40->length) > d0->mtu) - && error0 == MAP_ERROR_NONE && !cached)) + && error0 == MAP_ERROR_NONE)) { vnet_buffer (p0)->ip_frag.flags = 0; vnet_buffer (p0)->ip_frag.next_index = IP4_FRAG_NEXT_IP4_LOOKUP; vnet_buffer (p0)->ip_frag.mtu = d0->mtu; - next0 = IP6_MAP_IP4_REASS_NEXT_IP4_FRAGMENT; + next0 = IP6_MAP_POST_IP4_REASS_NEXT_IP4_FRAGMENT; } if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED)) @@ -943,61 +880,24 @@ ip6_map_ip4_reass (vlib_main_t * vm, 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_RX, - thread_index, - map_domain_index0, 1, - clib_net_to_host_u16 - (ip40->length)); - next0 = - (error0 == - MAP_ERROR_NONE) ? next0 : IP6_MAP_IP4_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); - } + if (error0 == MAP_ERROR_NONE) + vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_RX, + thread_index, + map_domain_index0, 1, + clib_net_to_host_u16 + (ip40->length)); + next0 = + (error0 == + MAP_ERROR_NONE) ? next0 : IP6_MAP_POST_IP4_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_fast (from, fragments_to_loopback, - sizeof (u32) * len); - n_left_from = len; - vec_reset_length (fragments_to_loopback); - } - else - { - clib_memcpy_fast (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); } - map_send_all_to_node (vm, fragments_to_drop, node, - &error_node->errors[MAP_ERROR_FRAGMENT_DROPPED], - IP6_MAP_IP4_REASS_NEXT_DROP); - - vec_free (fragments_to_drop); - vec_free (fragments_to_loopback); return frame->n_vectors; } @@ -1195,7 +1095,7 @@ VLIB_REGISTER_NODE(ip6_map_node) = { [IP6_MAP_NEXT_IP4_REWRITE] = "ip4-load-balance", #endif [IP6_MAP_NEXT_IP6_REASS] = "ip6-map-ip6-reass", - [IP6_MAP_NEXT_IP4_REASS] = "ip6-map-ip4-reass", + [IP6_MAP_NEXT_IP4_REASS] = "ip4-sv-reassembly-custom-next", [IP6_MAP_NEXT_IP4_FRAGMENT] = "ip4-frag", [IP6_MAP_NEXT_IP6_ICMP_RELAY] = "ip6-map-icmp-relay", [IP6_MAP_NEXT_IP6_LOCAL] = "ip6-local", @@ -1223,19 +1123,19 @@ VLIB_REGISTER_NODE(ip6_map_ip6_reass_node) = { /* *INDENT-ON* */ /* *INDENT-OFF* */ -VLIB_REGISTER_NODE(ip6_map_ip4_reass_node) = { - .function = ip6_map_ip4_reass, - .name = "ip6-map-ip4-reass", +VLIB_REGISTER_NODE(ip6_map_post_ip4_reass_node) = { + .function = ip6_map_post_ip4_reass, + .name = "ip6-map-post-ip4-reass", .vector_size = sizeof(u32), - .format_trace = format_ip6_map_ip4_reass_trace, + .format_trace = format_ip6_map_post_ip4_reass_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = MAP_N_ERROR, .error_strings = map_error_strings, - .n_next_nodes = IP6_MAP_IP4_REASS_N_NEXT, + .n_next_nodes = IP6_MAP_POST_IP4_REASS_N_NEXT, .next_nodes = { - [IP6_MAP_IP4_REASS_NEXT_IP4_LOOKUP] = "ip4-lookup", - [IP6_MAP_IP4_REASS_NEXT_IP4_FRAGMENT] = "ip4-frag", - [IP6_MAP_IP4_REASS_NEXT_DROP] = "error-drop", + [IP6_MAP_POST_IP4_REASS_NEXT_IP4_LOOKUP] = "ip4-lookup", + [IP6_MAP_POST_IP4_REASS_NEXT_IP4_FRAGMENT] = "ip4-frag", + [IP6_MAP_POST_IP4_REASS_NEXT_DROP] = "error-drop", }, }; /* *INDENT-ON* */ @@ -1257,6 +1157,19 @@ VLIB_REGISTER_NODE(ip6_map_icmp_relay_node, static) = { }; /* *INDENT-ON* */ +clib_error_t * +ip6_map_init (vlib_main_t * vm) +{ + map_main.ip4_sv_reass_custom_next_index = + ip4_sv_reass_custom_register_next_node + (ip6_map_post_ip4_reass_node.index); + return 0; +} + +VLIB_INIT_FUNCTION (ip6_map_init) = +{ +.runs_after = VLIB_INITS ("map_init"),}; + /* * fd.io coding-style-patch-verification: ON *