diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/vnet/adj/adj_midchain.c | 22 | ||||
| -rw-r--r-- | src/vnet/interface_output.h | 106 | ||||
| -rw-r--r-- | src/vnet/ip/ip4_forward.c | 27 | ||||
| -rw-r--r-- | src/vnet/ip/ip6_forward.c | 29 | ||||
| -rw-r--r-- | src/vnet/ipsec/esp_encrypt.c | 81 | ||||
| -rw-r--r-- | src/vnet/ipsec/ipsec.h | 8 | ||||
| -rw-r--r-- | src/vnet/ipsec/ipsec_if.c | 214 |
7 files changed, 331 insertions, 156 deletions
diff --git a/src/vnet/adj/adj_midchain.c b/src/vnet/adj/adj_midchain.c index f8a39494fb9..dfe52c3c39f 100644 --- a/src/vnet/adj/adj_midchain.c +++ b/src/vnet/adj/adj_midchain.c @@ -69,22 +69,13 @@ adj_midchain_tx_inline (vlib_main_t * vm, while (n_left_from >= 8 && n_left_to_next > 4) { + const ip_adjacency_t *adj0, *adj1, *adj2, *adj3; + const dpo_id_t *dpo0, *dpo1, *dpo2, *dpo3; + vlib_buffer_t * b0, *b1, *b2, *b3; u32 bi0, adj_index0, next0; - const ip_adjacency_t * adj0; - const dpo_id_t *dpo0; - vlib_buffer_t * b0; u32 bi1, adj_index1, next1; - const ip_adjacency_t * adj1; - const dpo_id_t *dpo1; - vlib_buffer_t * b1; u32 bi2, adj_index2, next2; - const ip_adjacency_t * adj2; - const dpo_id_t *dpo2; - vlib_buffer_t * b2; u32 bi3, adj_index3, next3; - const ip_adjacency_t * adj3; - const dpo_id_t *dpo3; - vlib_buffer_t * b3; /* Prefetch next iteration. */ { @@ -526,11 +517,6 @@ adj_nbr_midchain_update_rewrite (adj_index_t adj_index, (adj->lookup_next_index == IP_LOOKUP_NEXT_GLEAN) || (adj->lookup_next_index == IP_LOOKUP_NEXT_BCAST)); - /* - * tunnels can always provide a rewrite. - */ - ASSERT(NULL != rewrite); - adj_midchain_setup(adj_index, fixup, fixup_data, flags); /* @@ -704,6 +690,8 @@ format_adj_midchain (u8* s, va_list *ap) ip_adjacency_t * adj = adj_get(index); s = format (s, "%U", format_vnet_link, adj->ia_link); + if (adj->rewrite_header.flags & VNET_REWRITE_HAS_FEATURES) + s = format(s, " [features]"); s = format (s, " via %U", format_ip46_address, &adj->sub_type.nbr.next_hop, adj_proto_to_46(adj->ia_nh_proto)); diff --git a/src/vnet/interface_output.h b/src/vnet/interface_output.h new file mode 100644 index 00000000000..58f7f617957 --- /dev/null +++ b/src/vnet/interface_output.h @@ -0,0 +1,106 @@ +/* + * Copyright (c) 2015 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +/* + * interface_output.c: interface output node + * + * Copyright (c) 2008 Eliot Dresselhaus + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef __INTERFACE_INLINES_H__ +#define __INTERFACE_INLINES_H__ + +#include <vnet/vnet.h> + +static_always_inline void +calc_checksums (vlib_main_t * vm, vlib_buffer_t * b) +{ + ip4_header_t *ip4; + ip6_header_t *ip6; + tcp_header_t *th; + udp_header_t *uh; + + int is_ip4 = (b->flags & VNET_BUFFER_F_IS_IP4) != 0; + int is_ip6 = (b->flags & VNET_BUFFER_F_IS_IP6) != 0; + + ASSERT (!(is_ip4 && is_ip6)); + + ip4 = (ip4_header_t *) (b->data + vnet_buffer (b)->l3_hdr_offset); + ip6 = (ip6_header_t *) (b->data + vnet_buffer (b)->l3_hdr_offset); + th = (tcp_header_t *) (b->data + vnet_buffer (b)->l4_hdr_offset); + uh = (udp_header_t *) (b->data + vnet_buffer (b)->l4_hdr_offset); + + if (is_ip4) + { + ip4 = (ip4_header_t *) (b->data + vnet_buffer (b)->l3_hdr_offset); + if (b->flags & VNET_BUFFER_F_OFFLOAD_IP_CKSUM) + ip4->checksum = ip4_header_checksum (ip4); + if (b->flags & VNET_BUFFER_F_OFFLOAD_TCP_CKSUM) + { + th->checksum = 0; + th->checksum = ip4_tcp_udp_compute_checksum (vm, b, ip4); + } + if (b->flags & VNET_BUFFER_F_OFFLOAD_UDP_CKSUM) + uh->checksum = ip4_tcp_udp_compute_checksum (vm, b, ip4); + } + if (is_ip6) + { + int bogus; + if (b->flags & VNET_BUFFER_F_OFFLOAD_TCP_CKSUM) + { + th->checksum = 0; + th->checksum = + ip6_tcp_udp_icmp_compute_checksum (vm, b, ip6, &bogus); + } + if (b->flags & VNET_BUFFER_F_OFFLOAD_UDP_CKSUM) + { + uh->checksum = 0; + uh->checksum = + ip6_tcp_udp_icmp_compute_checksum (vm, b, ip6, &bogus); + } + } + + b->flags &= ~VNET_BUFFER_F_OFFLOAD_TCP_CKSUM; + b->flags &= ~VNET_BUFFER_F_OFFLOAD_UDP_CKSUM; + b->flags &= ~VNET_BUFFER_F_OFFLOAD_IP_CKSUM; +} + +#endif + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c index 981dfe3c91f..985db21d6b0 100644 --- a/src/vnet/ip/ip4_forward.c +++ b/src/vnet/ip/ip4_forward.c @@ -55,6 +55,7 @@ #include <vnet/mfib/mfib_table.h> /* for mFIB table and entry creation */ #include <vnet/ip/ip4_forward.h> +#include <vnet/interface_output.h> /** @brief IPv4 lookup node. @node ip4-lookup @@ -2336,7 +2337,11 @@ ip4_rewrite_inline_with_gso (vlib_main_t * vm, { b[1]->error = error_node->errors[error1]; } - + if (is_midchain) + { + calc_checksums (vm, b[0]); + calc_checksums (vm, b[1]); + } /* Guess we are only writing on simple Ethernet header. */ vnet_rewrite_two_headers (adj0[0], adj1[0], ip0, ip1, sizeof (ethernet_header_t)); @@ -2359,10 +2364,12 @@ ip4_rewrite_inline_with_gso (vlib_main_t * vm, if (is_midchain) { - adj0->sub_type.midchain.fixup_func - (vm, adj0, b[0], adj0->sub_type.midchain.fixup_data); - adj1->sub_type.midchain.fixup_func - (vm, adj1, b[1], adj1->sub_type.midchain.fixup_data); + if (adj0->sub_type.midchain.fixup_func) + adj0->sub_type.midchain.fixup_func + (vm, adj0, b[0], adj0->sub_type.midchain.fixup_data); + if (adj1->sub_type.midchain.fixup_func) + adj1->sub_type.midchain.fixup_func + (vm, adj1, b[1], adj1->sub_type.midchain.fixup_data); } if (is_mcast) @@ -2447,7 +2454,10 @@ ip4_rewrite_inline_with_gso (vlib_main_t * vm, { b[0]->error = error_node->errors[error0]; } - + if (is_midchain) + { + calc_checksums (vm, b[0]); + } /* Guess we are only writing on simple Ethernet header. */ vnet_rewrite_one_header (adj0[0], ip0, sizeof (ethernet_header_t)); @@ -2459,8 +2469,9 @@ ip4_rewrite_inline_with_gso (vlib_main_t * vm, if (is_midchain) { - adj0->sub_type.midchain.fixup_func - (vm, adj0, b[0], adj0->sub_type.midchain.fixup_data); + if (adj0->sub_type.midchain.fixup_func) + adj0->sub_type.midchain.fixup_func + (vm, adj0, b[0], adj0->sub_type.midchain.fixup_data); } if (is_mcast) diff --git a/src/vnet/ip/ip6_forward.c b/src/vnet/ip/ip6_forward.c index 858dd73a712..511fc9329e8 100644 --- a/src/vnet/ip/ip6_forward.c +++ b/src/vnet/ip/ip6_forward.c @@ -54,6 +54,7 @@ #include <vppinfra/bihash_template.c> #endif #include <vnet/ip/ip6_forward.h> +#include <vnet/interface_output.h> /* Flag used by IOAM code. Classifier sets it pop-hop-by-hop checks it */ #define OI_DECAP 0x80000000 @@ -1831,16 +1832,26 @@ ip6_rewrite_inline_with_gso (vlib_main_t * vm, p1->error = error_node->errors[error1]; } + if (is_midchain) + { + /* before we paint on the next header, update the L4 + * checksums if required, since there's no offload on a tunnel */ + calc_checksums (vm, p0); + calc_checksums (vm, p1); + } + /* Guess we are only writing on simple Ethernet header. */ vnet_rewrite_two_headers (adj0[0], adj1[0], ip0, ip1, sizeof (ethernet_header_t)); if (is_midchain) { - adj0->sub_type.midchain.fixup_func - (vm, adj0, p0, adj0->sub_type.midchain.fixup_data); - adj1->sub_type.midchain.fixup_func - (vm, adj1, p1, adj1->sub_type.midchain.fixup_data); + if (adj0->sub_type.midchain.fixup_func) + adj0->sub_type.midchain.fixup_func + (vm, adj0, p0, adj0->sub_type.midchain.fixup_data); + if (adj1->sub_type.midchain.fixup_func) + adj1->sub_type.midchain.fixup_func + (vm, adj1, p1, adj1->sub_type.midchain.fixup_data); } if (is_mcast) { @@ -1919,6 +1930,11 @@ ip6_rewrite_inline_with_gso (vlib_main_t * vm, p0->flags &= ~VNET_BUFFER_F_LOCALLY_ORIGINATED; } + if (is_midchain) + { + calc_checksums (vm, p0); + } + /* Guess we are only writing on simple Ethernet header. */ vnet_rewrite_one_header (adj0[0], ip0, sizeof (ethernet_header_t)); @@ -1969,8 +1985,9 @@ ip6_rewrite_inline_with_gso (vlib_main_t * vm, if (is_midchain) { - adj0->sub_type.midchain.fixup_func - (vm, adj0, p0, adj0->sub_type.midchain.fixup_data); + if (adj0->sub_type.midchain.fixup_func) + adj0->sub_type.midchain.fixup_func + (vm, adj0, p0, adj0->sub_type.midchain.fixup_data); } if (is_mcast) { diff --git a/src/vnet/ipsec/esp_encrypt.c b/src/vnet/ipsec/esp_encrypt.c index 6e5007151b9..ebcf0ed8e08 100644 --- a/src/vnet/ipsec/esp_encrypt.c +++ b/src/vnet/ipsec/esp_encrypt.c @@ -220,7 +220,7 @@ esp_process_ops (vlib_main_t * vm, vlib_node_runtime_t * node, always_inline uword esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, int is_ip6) + vlib_frame_t * frame, int is_ip6, int is_tun) { ipsec_main_t *im = &ipsec_main; ipsec_per_thread_data_t *ptd = vec_elt_at_index (im->ptd, vm->thread_index); @@ -258,7 +258,19 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node, CLIB_PREFETCH (p, CLIB_CACHE_LINE_BYTES, LOAD); } - if (vnet_buffer (b[0])->ipsec.sad_index != current_sa_index) + if (is_tun) + { + /* we are on a ipsec tunnel's feature arc */ + u32 next0; + sa_index0 = *(u32 *) vnet_feature_next_with_data (&next0, b[0], + sizeof + (sa_index0)); + next[0] = next0; + } + else + sa_index0 = vnet_buffer (b[0])->ipsec.sad_index; + + if (sa_index0 != current_sa_index) { sa0 = pool_elt_at_index (im->sad, sa_index0); current_sa_index = sa_index0; @@ -335,8 +347,11 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node, } dpo = sa0->dpo + IPSEC_PROTOCOL_ESP; - next[0] = dpo->dpoi_next_node; - vnet_buffer (b[0])->ip.adj_index[VLIB_TX] = dpo->dpoi_index; + if (!is_tun) + { + next[0] = dpo->dpoi_next_node; + vnet_buffer (b[0])->ip.adj_index[VLIB_TX] = dpo->dpoi_index; + } } else /* transport mode */ { @@ -483,7 +498,7 @@ VLIB_NODE_FN (esp4_encrypt_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * from_frame) { - return esp_encrypt_inline (vm, node, from_frame, 0 /* is_ip6 */ ); + return esp_encrypt_inline (vm, node, from_frame, 0 /* is_ip6 */ , 0); } /* *INDENT-OFF* */ @@ -509,7 +524,7 @@ VLIB_NODE_FN (esp6_encrypt_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * from_frame) { - return esp_encrypt_inline (vm, node, from_frame, 1 /* is_ip6 */ ); + return esp_encrypt_inline (vm, node, from_frame, 1 /* is_ip6 */ , 0); } /* *INDENT-OFF* */ @@ -531,6 +546,60 @@ VLIB_REGISTER_NODE (esp6_encrypt_node) = { }; /* *INDENT-ON* */ +VLIB_NODE_FN (esp4_encrypt_tun_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * from_frame) +{ + return esp_encrypt_inline (vm, node, from_frame, 0 /* is_ip6 */ , 1); +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (esp4_encrypt_tun_node) = { + .name = "esp4-encrypt-tun", + .vector_size = sizeof (u32), + .format_trace = format_esp_encrypt_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(esp_encrypt_error_strings), + .error_strings = esp_encrypt_error_strings, +}; + +VNET_FEATURE_INIT (esp4_encrypt_tun_feat_node, static) = +{ + .arc_name = "ip4-output", + .node_name = "esp4-encrypt-tun", + .runs_before = VNET_FEATURES ("ip4-frag", + "adj-midchain-tx"), +}; +/* *INDENT-ON* */ + +VLIB_NODE_FN (esp6_encrypt_tun_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * from_frame) +{ + return esp_encrypt_inline (vm, node, from_frame, 1 /* is_ip6 */ , 1); +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (esp6_encrypt_tun_node) = { + .name = "esp6-encrypt-tun", + .vector_size = sizeof (u32), + .format_trace = format_esp_encrypt_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(esp_encrypt_error_strings), + .error_strings = esp_encrypt_error_strings, +}; + +VNET_FEATURE_INIT (esp6_encrypt_tun_feat_node, static) = +{ + .arc_name = "ip6-output", + .node_name = "esp6-encrypt-tun", + .runs_before = VNET_FEATURES ("ip6-frag", + "adj-midchain-tx"), +}; +/* *INDENT-ON* */ + /* * fd.io coding-style-patch-verification: ON * diff --git a/src/vnet/ipsec/ipsec.h b/src/vnet/ipsec/ipsec.h index 9a5dbb3e8b2..47b3ed370b8 100644 --- a/src/vnet/ipsec/ipsec.h +++ b/src/vnet/ipsec/ipsec.h @@ -109,6 +109,7 @@ typedef struct uword *ipsec4_if_pool_index_by_key; uword *ipsec6_if_pool_index_by_key; uword *ipsec_if_real_dev_by_show_dev; + uword *ipsec_if_by_sw_if_index; /* node indices */ u32 error_drop_node_index; @@ -212,6 +213,13 @@ u32 ipsec_register_esp_backend (vlib_main_t * vm, ipsec_main_t * im, int ipsec_select_ah_backend (ipsec_main_t * im, u32 ah_backend_idx); int ipsec_select_esp_backend (ipsec_main_t * im, u32 esp_backend_idx); + +always_inline ipsec_sa_t * +ipsec_sa_get (u32 sa_index) +{ + return (pool_elt_at_index (ipsec_main.sad, sa_index)); +} + #endif /* __IPSEC_H__ */ /* diff --git a/src/vnet/ipsec/ipsec_if.c b/src/vnet/ipsec/ipsec_if.c index b1c05346dd0..304c52eac7c 100644 --- a/src/vnet/ipsec/ipsec_if.c +++ b/src/vnet/ipsec/ipsec_if.c @@ -20,6 +20,7 @@ #include <vnet/ip/ip.h> #include <vnet/fib/fib.h> #include <vnet/udp/udp.h> +#include <vnet/adj/adj_midchain.h> #include <vnet/ipsec/ipsec.h> #include <vnet/ipsec/esp.h> @@ -40,121 +41,68 @@ format_ipsec_name (u8 * s, va_list * args) #define foreach_ipsec_if_tx_error \ _(TX, "good packets transmitted") -static char *ipsec_if_tx_error_strings[] = { -#define _(sym,string) string, - foreach_ipsec_if_tx_error -#undef _ -}; - -typedef enum -{ -#define _(sym,str) IPSEC_IF_OUTPUT_ERROR_##sym, - foreach_ipsec_if_tx_error -#undef _ - IPSEC_IF_TX_N_ERROR, -} ipsec_if_tx_error_t; - -typedef struct -{ - u32 spi; - u32 seq; -} ipsec_if_tx_trace_t; - -u8 * -format_ipsec_if_tx_trace (u8 * s, va_list * args) +static void +ipsec_if_tunnel_stack (adj_index_t ai) { - CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); - CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - ipsec_if_tx_trace_t *t = va_arg (*args, ipsec_if_tx_trace_t *); + ipsec_main_t *ipm = &ipsec_main; + ipsec_tunnel_if_t *it; + ip_adjacency_t *adj; + u32 sw_if_index; - s = format (s, "IPSec: spi %u seq %u", t->spi, t->seq); - return s; -} + adj = adj_get (ai); + sw_if_index = adj->rewrite_header.sw_if_index; -static void -ipsec_output_trace (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame, const ipsec_tunnel_if_t * t0) -{ - ipsec_main_t *im = &ipsec_main; - u32 *from, n_left; + if ((vec_len (ipm->ipsec_if_by_sw_if_index) <= sw_if_index) || + (~0 == ipm->ipsec_if_by_sw_if_index[sw_if_index])) + return; - n_left = frame->n_vectors; - from = vlib_frame_vector_args (frame); + it = pool_elt_at_index (ipm->tunnel_interfaces, + ipm->ipsec_if_by_sw_if_index[sw_if_index]); - while (n_left > 0) + if (!vnet_hw_interface_is_link_up (vnet_get_main (), it->hw_if_index)) { - vlib_buffer_t *b0; + adj_midchain_delegate_unstack (ai); + } + else + { + ipsec_sa_t *sa; - b0 = vlib_get_buffer (vm, from[0]); + sa = ipsec_sa_get (it->output_sa_index); - if (b0->flags & VLIB_BUFFER_IS_TRACED) - { - ipsec_if_tx_trace_t *tr = - vlib_add_trace (vm, node, b0, sizeof (*tr)); - ipsec_sa_t *sa0 = pool_elt_at_index (im->sad, t0->output_sa_index); - tr->spi = sa0->spi; - tr->seq = sa0->seq; - } + fib_prefix_t pfx = { + .fp_addr = sa->tunnel_dst_addr, + .fp_len = (sa->is_tunnel_ip6 ? 128 : 32), + .fp_proto = (sa->is_tunnel_ip6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4), + }; - from += 1; - n_left -= 1; + adj_midchain_delegate_stack (ai, sa->tx_fib_index, &pfx); } } -VNET_DEVICE_CLASS_TX_FN (ipsec_device_class) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +/** + * @brief Call back when restacking all adjacencies on a GRE interface + */ +static adj_walk_rc_t +ipsec_if_adj_walk_cb (adj_index_t ai, void *ctx) { - ipsec_main_t *im = &ipsec_main; - u32 *from, n_left; - vnet_interface_output_runtime_t *rd = (void *) node->runtime_data; - const ipsec_tunnel_if_t *t0; - vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b; - u16 nexts[VLIB_FRAME_SIZE]; - - from = vlib_frame_vector_args (frame); - t0 = pool_elt_at_index (im->tunnel_interfaces, rd->dev_instance); - n_left = frame->n_vectors; - b = bufs; - - /* All going to encrypt */ - clib_memset (nexts, 0, sizeof (nexts)); - - if (node->flags & VLIB_NODE_FLAG_TRACE) - ipsec_output_trace (vm, node, frame, t0); - - vlib_get_buffers (vm, from, bufs, n_left); + ipsec_if_tunnel_stack (ai); - while (n_left >= 8) - { - /* Prefetch the buffer header for the N+2 loop iteration */ - vlib_prefetch_buffer_header (b[4], STORE); - vlib_prefetch_buffer_header (b[5], STORE); - vlib_prefetch_buffer_header (b[6], STORE); - vlib_prefetch_buffer_header (b[7], STORE); - - vnet_buffer (b[0])->ipsec.sad_index = t0->output_sa_index; - vnet_buffer (b[1])->ipsec.sad_index = t0->output_sa_index; - vnet_buffer (b[2])->ipsec.sad_index = t0->output_sa_index; - vnet_buffer (b[3])->ipsec.sad_index = t0->output_sa_index; - - n_left -= 4; - b += 4; - } - while (n_left > 0) - { - vnet_buffer (b[0])->ipsec.sad_index = t0->output_sa_index; - - n_left -= 1; - b += 1; - } - - vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors); - - return frame->n_vectors; + return (ADJ_WALK_RC_CONTINUE); } +static void +ipsec_if_tunnel_restack (ipsec_tunnel_if_t * it) +{ + fib_protocol_t proto; + + /* + * walk all the adjacencies on th GRE interface and restack them + */ + FOR_EACH_FIB_IP_PROTOCOL (proto) + { + adj_nbr_walk (it->sw_if_index, proto, ipsec_if_adj_walk_cb, NULL); + } +} static clib_error_t * ipsec_admin_up_down_function (vnet_main_t * vnm, u32 hw_if_index, u32 flags) @@ -207,18 +155,34 @@ ipsec_admin_up_down_function (vnet_main_t * vnm, u32 hw_if_index, u32 flags) return err; } - return /* no error */ 0; + ipsec_if_tunnel_restack (t); + + return (NULL); } +static u8 * +ipsec_if_build_rewrite (vnet_main_t * vnm, + u32 sw_if_index, + vnet_link_t link_type, const void *dst_address) +{ + return (NULL); +} + +static void +ipsec_if_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai) +{ + adj_nbr_midchain_update_rewrite + (ai, NULL, NULL, ADJ_FLAG_MIDCHAIN_IP_STACK, + ipsec_if_build_rewrite (vnm, sw_if_index, adj_get_link_type (ai), NULL)); + + ipsec_if_tunnel_stack (ai); +} /* *INDENT-OFF* */ VNET_DEVICE_CLASS (ipsec_device_class) = { .name = "IPSec", .format_device_name = format_ipsec_name, - .format_tx_trace = format_ipsec_if_tx_trace, - .tx_function_n_errors = IPSEC_IF_TX_N_ERROR, - .tx_function_error_strings = ipsec_if_tx_error_strings, .admin_up_down_function = ipsec_admin_up_down_function, }; /* *INDENT-ON* */ @@ -228,6 +192,7 @@ VNET_HW_INTERFACE_CLASS (ipsec_hw_class) = { .name = "IPSec", .build_rewrite = default_build_rewrite, + .update_adjacency = ipsec_if_update_adj, .flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P, }; /* *INDENT-ON* */ @@ -380,21 +345,25 @@ ipsec_add_del_tunnel_if_internal (vnet_main_t * vnm, hi = vnet_get_hw_interface (vnm, hw_if_index); - /* add esp4/6 as the next-node-index of this tx-node */ - uword slot = vlib_node_add_next_with_slot - (vnm->vlib_main, hi->tx_node_index, - is_ip6 ? im->esp6_encrypt_node_index : im->esp4_encrypt_node_index, - 0); - - ASSERT (slot == 0); - t->hw_if_index = hw_if_index; t->sw_if_index = hi->sw_if_index; - vnet_feature_enable_disable ("interface-output", - args->is_ip6 ? "ipsec6-if-output" : - "ipsec4-if-output", hi->sw_if_index, 1, 0, - 0); + /* Add the new tunnel to the DB of tunnels per sw_if_index ... */ + vec_validate_init_empty (im->ipsec_if_by_sw_if_index, t->sw_if_index, + ~0); + im->ipsec_if_by_sw_if_index[t->sw_if_index] = dev_instance; + + vnet_feature_enable_disable ("ip4-output", + "esp4-encrypt-tun", + t->sw_if_index, 1, + &t->output_sa_index, + sizeof (t->output_sa_index)); + vnet_feature_enable_disable ("ip6-output", + "esp6-encrypt-tun", + t->sw_if_index, 1, + &t->output_sa_index, + sizeof (t->output_sa_index)); + /*1st interface, register protocol */ if (pool_elts (im->tunnel_interfaces) == 1) { @@ -418,10 +387,16 @@ ipsec_add_del_tunnel_if_internal (vnet_main_t * vnm, hi = vnet_get_hw_interface (vnm, t->hw_if_index); vnet_sw_interface_set_flags (vnm, hi->sw_if_index, 0); /* admin down */ - vnet_feature_enable_disable ("interface-output", - args->is_ip6 ? "ipsec6-if-output" : - "ipsec4-if-output", hi->sw_if_index, 0, 0, - 0); + vnet_feature_enable_disable ("ip4-output", + "esp4-encrypt-tun", + hi->sw_if_index, 0, + &t->output_sa_index, + sizeof (t->output_sa_index)); + vnet_feature_enable_disable ("ip6-output", + "esp6-encrypt-tun", + hi->sw_if_index, 0, + &t->output_sa_index, + sizeof (t->output_sa_index)); vnet_delete_hw_interface (vnm, t->hw_if_index); if (is_ip6) @@ -430,6 +405,7 @@ ipsec_add_del_tunnel_if_internal (vnet_main_t * vnm, hash_unset (im->ipsec4_if_pool_index_by_key, key4.as_u64); hash_unset (im->ipsec_if_real_dev_by_show_dev, t->show_instance); + im->ipsec_if_by_sw_if_index[t->sw_if_index] = ~0; pool_put (im->tunnel_interfaces, t); |