X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fgre%2Fgre.c;h=f1bc6946416ba002dcb788866eae1c93d52fed52;hb=e5b94dded;hp=785476d0905e15b4d458a8580532d094ad3ead74;hpb=9ff647a995ba43dcee898c1904d9ec8298b069c8;p=vpp.git diff --git a/src/vnet/gre/gre.c b/src/vnet/gre/gre.c index 785476d0905..f1bc6946416 100644 --- a/src/vnet/gre/gre.c +++ b/src/vnet/gre/gre.c @@ -18,7 +18,11 @@ #include #include #include +#include +extern gre_main_t gre_main; + +#ifndef CLIB_MARCH_VARIANT gre_main_t gre_main; typedef struct @@ -38,6 +42,7 @@ typedef struct u64 as_u64[3]; }; } ip6_and_gre_union_t; +#endif /* CLIB_MARCH_VARIANT */ /* Packet trace structure */ @@ -54,6 +59,9 @@ typedef struct ip46_address_t dst; } gre_tx_trace_t; +extern u8 *format_gre_tx_trace (u8 * s, va_list * args); + +#ifndef CLIB_MARCH_VARIANT u8 * format_gre_tx_trace (u8 * s, va_list * args) { @@ -62,7 +70,7 @@ format_gre_tx_trace (u8 * s, va_list * args) gre_tx_trace_t *t = va_arg (*args, gre_tx_trace_t *); s = format (s, "GRE: tunnel %d len %d src %U dst %U", - t->tunnel_id, clib_net_to_host_u16 (t->length), + t->tunnel_id, t->length, format_ip46_address, &t->src, IP46_TYPE_ANY, format_ip46_address, &t->dst, IP46_TYPE_ANY); return s; @@ -100,7 +108,7 @@ format_gre_header_with_length (u8 * s, va_list * args) s = format (s, "GRE %U", format_gre_protocol, p); - if (max_header_bytes != 0 && header_bytes > max_header_bytes) + if (max_header_bytes != 0 && header_bytes < max_header_bytes) { gre_protocol_info_t *pi = gre_get_protocol_info (gm, p); vlib_node_t *node = vlib_get_node (gm->vlib_main, pi->node_index); @@ -206,13 +214,16 @@ gre_build_rewrite (vnet_main_t * vnm, vnet_link_t link_type, const void *dst_address) { gre_main_t *gm = &gre_main; + const ip46_address_t *dst; ip4_and_gre_header_t *h4; ip6_and_gre_header_t *h6; + gre_header_t *gre; u8 *rewrite = NULL; gre_tunnel_t *t; u32 ti; u8 is_ipv6; + dst = dst_address; ti = gm->tunnel_index_by_sw_if_index[sw_if_index]; if (~0 == ti) @@ -227,24 +238,20 @@ gre_build_rewrite (vnet_main_t * vnm, { vec_validate (rewrite, sizeof (*h4) - 1); h4 = (ip4_and_gre_header_t *) rewrite; - h4->gre.protocol = - clib_host_to_net_u16 (gre_proto_from_vnet_link (link_type)); - + gre = &h4->gre; h4->ip4.ip_version_and_header_length = 0x45; h4->ip4.ttl = 254; h4->ip4.protocol = IP_PROTOCOL_GRE; /* fixup ip4 header length and checksum after-the-fact */ h4->ip4.src_address.as_u32 = t->tunnel_src.ip4.as_u32; - h4->ip4.dst_address.as_u32 = t->tunnel_dst.fp_addr.ip4.as_u32; + h4->ip4.dst_address.as_u32 = dst->ip4.as_u32; h4->ip4.checksum = ip4_header_checksum (&h4->ip4); } else { vec_validate (rewrite, sizeof (*h6) - 1); h6 = (ip6_and_gre_header_t *) rewrite; - h6->gre.protocol = - clib_host_to_net_u16 (gre_proto_from_vnet_link (link_type)); - + gre = &h6->gre; h6->ip6.ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (6 << 28); h6->ip6.hop_limit = 255; @@ -252,17 +259,61 @@ gre_build_rewrite (vnet_main_t * vnm, /* fixup ip6 header length and checksum after-the-fact */ h6->ip6.src_address.as_u64[0] = t->tunnel_src.ip6.as_u64[0]; h6->ip6.src_address.as_u64[1] = t->tunnel_src.ip6.as_u64[1]; - h6->ip6.dst_address.as_u64[0] = t->tunnel_dst.fp_addr.ip6.as_u64[0]; - h6->ip6.dst_address.as_u64[1] = t->tunnel_dst.fp_addr.ip6.as_u64[1]; + h6->ip6.dst_address.as_u64[0] = dst->ip6.as_u64[0]; + h6->ip6.dst_address.as_u64[1] = dst->ip6.as_u64[1]; } + if (PREDICT_FALSE (t->type == GRE_TUNNEL_TYPE_ERSPAN)) + { + gre->protocol = clib_host_to_net_u16 (GRE_PROTOCOL_erspan); + gre->flags_and_version = clib_host_to_net_u16 (GRE_FLAGS_SEQUENCE); + } + else + gre->protocol = + clib_host_to_net_u16 (gre_proto_from_vnet_link (link_type)); + return (rewrite); } -#define is_v4_packet(_h) ((*(u8*) _h) & 0xF0) == 0x40 +static void +gre44_fixup (vlib_main_t * vm, + const ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data) +{ + tunnel_encap_decap_flags_t flags; + ip4_and_gre_header_t *ip0; -void -gre4_fixup (vlib_main_t * vm, ip_adjacency_t * adj, vlib_buffer_t * b0) + ip0 = vlib_buffer_get_current (b0); + flags = pointer_to_uword (data); + + /* Fixup the checksum and len fields in the GRE tunnel encap + * that was applied at the midchain node */ + ip0->ip4.length = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)); + tunnel_encap_fixup_4o4 (flags, (ip4_header_t *) (ip0 + 1), &ip0->ip4); + ip0->ip4.checksum = ip4_header_checksum (&ip0->ip4); +} + +static void +gre64_fixup (vlib_main_t * vm, + const ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data) +{ + tunnel_encap_decap_flags_t flags; + ip4_and_gre_header_t *ip0; + + ip0 = vlib_buffer_get_current (b0); + flags = pointer_to_uword (data); + + /* Fixup the checksum and len fields in the GRE tunnel encap + * that was applied at the midchain node */ + ip0->ip4.length = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)); + tunnel_encap_fixup_6o4 (flags, (ip6_header_t *) (ip0 + 1), &ip0->ip4); + ip0->ip4.checksum = ip4_header_checksum (&ip0->ip4); +} + +static void +grex4_fixup (vlib_main_t * vm, + const ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data) { ip4_header_t *ip0; @@ -274,8 +325,45 @@ gre4_fixup (vlib_main_t * vm, ip_adjacency_t * adj, vlib_buffer_t * b0) ip0->checksum = ip4_header_checksum (ip0); } -void -gre6_fixup (vlib_main_t * vm, ip_adjacency_t * adj, vlib_buffer_t * b0) +static void +gre46_fixup (vlib_main_t * vm, + const ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data) +{ + tunnel_encap_decap_flags_t flags; + ip6_and_gre_header_t *ip0; + + ip0 = vlib_buffer_get_current (b0); + flags = pointer_to_uword (data); + + /* Fixup the payload length field in the GRE tunnel encap that was applied + * at the midchain node */ + ip0->ip6.payload_length = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - + sizeof (*ip0)); + tunnel_encap_fixup_4o6 (flags, (ip4_header_t *) (ip0 + 1), &ip0->ip6); +} + +static void +gre66_fixup (vlib_main_t * vm, + const ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data) +{ + tunnel_encap_decap_flags_t flags; + ip6_and_gre_header_t *ip0; + + ip0 = vlib_buffer_get_current (b0); + flags = pointer_to_uword (data); + + /* Fixup the payload length field in the GRE tunnel encap that was applied + * at the midchain node */ + ip0->ip6.payload_length = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - + sizeof (*ip0)); + tunnel_encap_fixup_6o6 (flags, (ip6_header_t *) (ip0 + 1), &ip0->ip6); +} + +static void +grex6_fixup (vlib_main_t * vm, + const ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data) { ip6_header_t *ip0; @@ -284,8 +372,32 @@ gre6_fixup (vlib_main_t * vm, ip_adjacency_t * adj, vlib_buffer_t * b0) /* Fixup the payload length field in the GRE tunnel encap that was applied * at the midchain node */ ip0->payload_length = - clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)) - - sizeof (*ip0); + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - + sizeof (*ip0)); +} + +/** + * return the appropriate fixup function given the overlay (link-type) and + * underlay (fproto) combination + */ +static adj_midchain_fixup_t +gre_get_fixup (fib_protocol_t fproto, vnet_link_t lt) +{ + if (fproto == FIB_PROTOCOL_IP6 && lt == VNET_LINK_IP6) + return (gre66_fixup); + if (fproto == FIB_PROTOCOL_IP6 && lt == VNET_LINK_IP4) + return (gre46_fixup); + if (fproto == FIB_PROTOCOL_IP4 && lt == VNET_LINK_IP6) + return (gre64_fixup); + if (fproto == FIB_PROTOCOL_IP4 && lt == VNET_LINK_IP4) + return (gre44_fixup); + if (fproto == FIB_PROTOCOL_IP6 && lt == VNET_LINK_ETHERNET) + return (grex6_fixup); + if (fproto == FIB_PROTOCOL_IP4 && lt == VNET_LINK_ETHERNET) + return (grex4_fixup); + + ASSERT (0); + return (gre44_fixup); } void @@ -293,125 +405,279 @@ gre_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai) { gre_main_t *gm = &gre_main; gre_tunnel_t *t; + adj_flags_t af; u32 ti; - u8 is_ipv6; ti = gm->tunnel_index_by_sw_if_index[sw_if_index]; t = pool_elt_at_index (gm->tunnels, ti); - is_ipv6 = t->tunnel_dst.fp_proto == FIB_PROTOCOL_IP6 ? 1 : 0; + af = ADJ_FLAG_MIDCHAIN_IP_STACK; + + if (VNET_LINK_ETHERNET == adj_get_link_type (ai)) + af |= ADJ_FLAG_MIDCHAIN_NO_COUNT; - adj_nbr_midchain_update_rewrite (ai, !is_ipv6 ? gre4_fixup : gre6_fixup, - (VNET_LINK_ETHERNET == - adj_get_link_type (ai) ? - ADJ_FLAG_MIDCHAIN_NO_COUNT : - ADJ_FLAG_NONE), gre_build_rewrite (vnm, - sw_if_index, - adj_get_link_type - (ai), - NULL)); + adj_nbr_midchain_update_rewrite + (ai, gre_get_fixup (t->tunnel_dst.fp_proto, + adj_get_link_type (ai)), + uword_to_pointer (t->flags, void *), af, + gre_build_rewrite (vnm, sw_if_index, adj_get_link_type (ai), + &t->tunnel_dst.fp_addr)); gre_tunnel_stack (ai); } +adj_walk_rc_t +mgre_mk_complete_walk (adj_index_t ai, void *data) +{ + mgre_walk_ctx_t *ctx = data; + + adj_nbr_midchain_update_rewrite + (ai, gre_get_fixup (ctx->t->tunnel_dst.fp_proto, + adj_get_link_type (ai)), + uword_to_pointer (ctx->t->flags, void *), + ADJ_FLAG_MIDCHAIN_IP_STACK, + gre_build_rewrite (vnet_get_main (), + ctx->t->sw_if_index, + adj_get_link_type (ai), + &nhrp_entry_get_nh (ctx->ne)->fp_addr)); + + nhrp_entry_adj_stack (ctx->ne, ai); + + return (ADJ_WALK_RC_CONTINUE); +} + +adj_walk_rc_t +mgre_mk_incomplete_walk (adj_index_t ai, void *data) +{ + gre_tunnel_t *t = data; + + adj_nbr_midchain_update_rewrite (ai, gre_get_fixup (t->tunnel_dst.fp_proto, + adj_get_link_type (ai)), + NULL, ADJ_FLAG_NONE, NULL); + + adj_midchain_delegate_unstack (ai); + + return (ADJ_WALK_RC_CONTINUE); +} + +void +mgre_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai) +{ + gre_main_t *gm = &gre_main; + ip_adjacency_t *adj; + nhrp_entry_t *ne; + gre_tunnel_t *t; + u32 ti; + + adj = adj_get (ai); + ti = gm->tunnel_index_by_sw_if_index[sw_if_index]; + t = pool_elt_at_index (gm->tunnels, ti); + + ne = nhrp_entry_find (sw_if_index, &adj->sub_type.nbr.next_hop); + + if (NULL == ne) + // no NHRP entry to provide the next-hop + return; + + mgre_walk_ctx_t ctx = { + .t = t, + .ne = ne + }; + adj_nbr_walk_nh (sw_if_index, + adj->ia_nh_proto, + &adj->sub_type.nbr.next_hop, mgre_mk_complete_walk, &ctx); +} +#endif /* CLIB_MARCH_VARIANT */ + +typedef enum +{ + GRE_ENCAP_NEXT_L2_MIDCHAIN, + GRE_ENCAP_N_NEXT, +} gre_encap_next_t; + /** - * @brief TX function. Only called L2. L3 traffic uses the adj-midchains + * @brief TX function. Only called for L2 payload including TEB or ERSPAN. + * L3 traffic uses the adj-midchains. */ -static uword -gre_interface_tx_inline (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) +VLIB_NODE_FN (gre_encap_node) (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) { gre_main_t *gm = &gre_main; - u32 next_index; - u32 *from, *to_next, n_left_from, n_left_to_next; - vnet_interface_output_runtime_t *rd = (void *) node->runtime_data; - const gre_tunnel_t *gt = pool_elt_at_index (gm->tunnels, rd->dev_instance); - u8 is_ipv6 = gt->tunnel_dst.fp_proto == FIB_PROTOCOL_IP6 ? 1 : 0; + u32 *from, n_left_from; + vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs; + u32 sw_if_index[2] = { ~0, ~0 }; + const gre_tunnel_t *gt[2] = { 0 }; + adj_index_t adj_index[2] = { ADJ_INDEX_INVALID, ADJ_INDEX_INVALID }; - /* Vector of buffer / pkt indices we're supposed to process */ from = vlib_frame_vector_args (frame); - - /* Number of buffers / pkts */ n_left_from = frame->n_vectors; + vlib_get_buffers (vm, from, bufs, n_left_from); + + while (n_left_from >= 2) + { + + if (PREDICT_FALSE + (sw_if_index[0] != vnet_buffer (b[0])->sw_if_index[VLIB_TX])) + { + const vnet_hw_interface_t *hi; + sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_TX]; + hi = vnet_get_sup_hw_interface (gm->vnet_main, sw_if_index[0]); + gt[0] = &gm->tunnels[hi->dev_instance]; + adj_index[0] = gt[0]->l2_adj_index; + } + if (PREDICT_FALSE + (sw_if_index[1] != vnet_buffer (b[1])->sw_if_index[VLIB_TX])) + { + const vnet_hw_interface_t *hi; + sw_if_index[1] = vnet_buffer (b[1])->sw_if_index[VLIB_TX]; + hi = vnet_get_sup_hw_interface (gm->vnet_main, sw_if_index[1]); + gt[1] = &gm->tunnels[hi->dev_instance]; + adj_index[1] = gt[1]->l2_adj_index; + } + + vnet_buffer (b[0])->ip.adj_index[VLIB_TX] = adj_index[0]; + vnet_buffer (b[1])->ip.adj_index[VLIB_TX] = adj_index[1]; + + if (PREDICT_FALSE (gt[0]->type == GRE_TUNNEL_TYPE_ERSPAN)) + { + /* Encap GRE seq# and ERSPAN type II header */ + erspan_t2_t *h0; + u32 seq_num; + u64 hdr; + vlib_buffer_advance (b[0], -sizeof (erspan_t2_t)); + h0 = vlib_buffer_get_current (b[0]); + seq_num = clib_atomic_fetch_add (>[0]->gre_sn->seq_num, 1); + hdr = clib_host_to_net_u64 (ERSPAN_HDR2); + h0->seq_num = clib_host_to_net_u32 (seq_num); + h0->t2_u64 = hdr; + h0->t2.cos_en_t_session |= clib_host_to_net_u16 (gt[0]->session_id); + } + if (PREDICT_FALSE (gt[1]->type == GRE_TUNNEL_TYPE_ERSPAN)) + { + /* Encap GRE seq# and ERSPAN type II header */ + erspan_t2_t *h0; + u32 seq_num; + u64 hdr; + vlib_buffer_advance (b[1], -sizeof (erspan_t2_t)); + h0 = vlib_buffer_get_current (b[1]); + seq_num = clib_atomic_fetch_add (>[1]->gre_sn->seq_num, 1); + hdr = clib_host_to_net_u64 (ERSPAN_HDR2); + h0->seq_num = clib_host_to_net_u32 (seq_num); + h0->t2_u64 = hdr; + h0->t2.cos_en_t_session |= clib_host_to_net_u16 (gt[1]->session_id); + } + + if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED)) + { + gre_tx_trace_t *tr = vlib_add_trace (vm, node, + b[0], sizeof (*tr)); + tr->tunnel_id = gt[0] - gm->tunnels; + tr->src = gt[0]->tunnel_src; + tr->dst = gt[0]->tunnel_dst.fp_addr; + tr->length = vlib_buffer_length_in_chain (vm, b[0]); + } + if (PREDICT_FALSE (b[1]->flags & VLIB_BUFFER_IS_TRACED)) + { + gre_tx_trace_t *tr = vlib_add_trace (vm, node, + b[1], sizeof (*tr)); + tr->tunnel_id = gt[1] - gm->tunnels; + tr->src = gt[1]->tunnel_src; + tr->dst = gt[1]->tunnel_dst.fp_addr; + tr->length = vlib_buffer_length_in_chain (vm, b[1]); + } - /* Speculatively send the first buffer to the last disposition we used */ - next_index = node->cached_next_index; + b += 2; + n_left_from -= 2; + } - while (n_left_from > 0) + while (n_left_from >= 1) { - /* set up to enqueue to our disposition with index = next_index */ - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - /* - * FIXME DUAL LOOP - */ + if (PREDICT_FALSE + (sw_if_index[0] != vnet_buffer (b[0])->sw_if_index[VLIB_TX])) + { + const vnet_hw_interface_t *hi; + sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_TX]; + hi = vnet_get_sup_hw_interface (gm->vnet_main, sw_if_index[0]); + gt[0] = &gm->tunnels[hi->dev_instance]; + adj_index[0] = gt[0]->l2_adj_index; + } + + vnet_buffer (b[0])->ip.adj_index[VLIB_TX] = adj_index[0]; - while (n_left_from > 0 && n_left_to_next > 0) + if (PREDICT_FALSE (gt[0]->type == GRE_TUNNEL_TYPE_ERSPAN)) { - vlib_buffer_t *b0; - u32 bi0; - - bi0 = from[0]; - to_next[0] = bi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - b0 = vlib_get_buffer (vm, bi0); - - vnet_buffer (b0)->ip.adj_index[VLIB_TX] = gt->l2_adj_index; - - if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) - { - gre_tx_trace_t *tr = vlib_add_trace (vm, node, - b0, sizeof (*tr)); - tr->tunnel_id = gt - gm->tunnels; - tr->src = gt->tunnel_src; - tr->dst = gt->tunnel_src; - tr->length = vlib_buffer_length_in_chain (vm, b0); - } - - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, - to_next, n_left_to_next, - bi0, gt->l2_tx_arc); + /* Encap GRE seq# and ERSPAN type II header */ + erspan_t2_t *h0; + u32 seq_num; + u64 hdr; + vlib_buffer_advance (b[0], -sizeof (erspan_t2_t)); + h0 = vlib_buffer_get_current (b[0]); + seq_num = clib_atomic_fetch_add (>[0]->gre_sn->seq_num, 1); + hdr = clib_host_to_net_u64 (ERSPAN_HDR2); + h0->seq_num = clib_host_to_net_u32 (seq_num); + h0->t2_u64 = hdr; + h0->t2.cos_en_t_session |= clib_host_to_net_u16 (gt[0]->session_id); } - vlib_put_next_frame (vm, node, next_index, n_left_to_next); + if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED)) + { + gre_tx_trace_t *tr = vlib_add_trace (vm, node, + b[0], sizeof (*tr)); + tr->tunnel_id = gt[0] - gm->tunnels; + tr->src = gt[0]->tunnel_src; + tr->dst = gt[0]->tunnel_dst.fp_addr; + tr->length = vlib_buffer_length_in_chain (vm, b[0]); + } + + b += 1; + n_left_from -= 1; } - vlib_node_increment_counter (vm, !is_ipv6 ? gre4_input_node.index : - gre6_input_node.index, + vlib_buffer_enqueue_to_single_next (vm, node, from, + GRE_ENCAP_NEXT_L2_MIDCHAIN, + frame->n_vectors); + + vlib_node_increment_counter (vm, node->node_index, GRE_ERROR_PKTS_ENCAP, frame->n_vectors); return frame->n_vectors; } -static uword -gre_interface_tx (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) -{ - return (gre_interface_tx_inline (vm, node, frame)); -} +static char *gre_error_strings[] = { +#define gre_error(n,s) s, +#include "error.def" +#undef gre_error +}; -static uword -gre_teb_interface_tx (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (gre_encap_node) = { - return (gre_interface_tx_inline (vm, node, frame)); -} + .name = "gre-encap", + .vector_size = sizeof (u32), + .format_trace = format_gre_tx_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = GRE_N_ERROR, + .error_strings = gre_error_strings, + .n_next_nodes = GRE_ENCAP_N_NEXT, + .next_nodes = { + [GRE_ENCAP_NEXT_L2_MIDCHAIN] = "adj-l2-midchain", + }, +}; +/* *INDENT-ON* */ +#ifndef CLIB_MARCH_VARIANT static u8 * format_gre_tunnel_name (u8 * s, va_list * args) { u32 dev_instance = va_arg (*args, u32); - return format (s, "gre%d", dev_instance); -} + gre_main_t *gm = &gre_main; + gre_tunnel_t *t; -static u8 * -format_gre_tunnel_teb_name (u8 * s, va_list * args) -{ - u32 dev_instance = va_arg (*args, u32); - return format (s, "teb-gre%d", dev_instance); + if (dev_instance >= vec_len (gm->tunnels)) + return format (s, ""); + + t = pool_elt_at_index (gm->tunnels, dev_instance); + return format (s, "gre%d", t->user_instance); } static u8 * @@ -424,43 +690,42 @@ format_gre_device (u8 * s, va_list * args) return s; } +static int +gre_tunnel_desc (u32 sw_if_index, + ip46_address_t * src, ip46_address_t * dst, u8 * is_l2) +{ + gre_main_t *gm = &gre_main; + gre_tunnel_t *t; + u32 ti; + + ti = gm->tunnel_index_by_sw_if_index[sw_if_index]; + + if (~0 == ti) + /* not one of ours */ + return -1; + + t = pool_elt_at_index (gm->tunnels, ti); + + *src = t->tunnel_src; + *dst = t->tunnel_dst.fp_addr; + *is_l2 = t->type == GRE_TUNNEL_TYPE_TEB; + + return (0); +} + /* *INDENT-OFF* */ VNET_DEVICE_CLASS (gre_device_class) = { .name = "GRE tunnel device", .format_device_name = format_gre_tunnel_name, .format_device = format_gre_device, .format_tx_trace = format_gre_tx_trace, - .tx_function = gre_interface_tx, - .admin_up_down_function = gre_interface_admin_up_down, -#ifdef SOON - .clear counter = 0; -#endif -}; -/* *INDENT-ON* */ - - -/* *INDENT-OFF* */ -VLIB_DEVICE_TX_FUNCTION_MULTIARCH (gre_device_class, - gre_interface_tx) - -VNET_DEVICE_CLASS (gre_device_teb_class) = { - .name = "GRE TEB tunnel device", - .format_device_name = format_gre_tunnel_teb_name, - .format_device = format_gre_device, - .format_tx_trace = format_gre_tx_trace, - .tx_function = gre_teb_interface_tx, .admin_up_down_function = gre_interface_admin_up_down, + .ip_tun_desc = gre_tunnel_desc, #ifdef SOON .clear counter = 0; #endif }; -/* *INDENT-ON* */ - -/* *INDENT-OFF* */ -VLIB_DEVICE_TX_FUNCTION_MULTIARCH (gre_device_teb_class, - gre_teb_interface_tx) - VNET_HW_INTERFACE_CLASS (gre_hw_interface_class) = { .name = "GRE", .format_header = format_gre_header_with_length, @@ -469,7 +734,17 @@ VNET_HW_INTERFACE_CLASS (gre_hw_interface_class) = { .update_adjacency = gre_update_adj, .flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P, }; + +VNET_HW_INTERFACE_CLASS (mgre_hw_interface_class) = { + .name = "mGRE", + .format_header = format_gre_header_with_length, + .unformat_header = unformat_gre_header, + .build_rewrite = gre_build_rewrite, + .update_adjacency = mgre_update_adj, + .flags = VNET_HW_INTERFACE_CLASS_FLAG_NBMA, +}; /* *INDENT-ON* */ +#endif /* CLIB_MARCH_VARIANT */ static void add_protocol (gre_main_t * gm, gre_protocol_t protocol, char *protocol_name) @@ -496,7 +771,7 @@ gre_init (vlib_main_t * vm) ip_main_t *im = &ip_main; ip_protocol_info_t *pi; - memset (gm, 0, sizeof (gm[0])); + clib_memset (gm, 0, sizeof (gm[0])); gm->vlib_main = vm; gm->vnet_main = vnet_get_main (); @@ -516,8 +791,12 @@ gre_init (vlib_main_t * vm) gm->protocol_info_by_name = hash_create_string (0, sizeof (uword)); gm->protocol_info_by_protocol = hash_create (0, sizeof (uword)); - gm->tunnel_by_key4 = hash_create (0, sizeof (uword)); - gm->tunnel_by_key6 = hash_create_mem (0, sizeof (u64[4]), sizeof (uword)); + gm->tunnel_by_key4 = + hash_create_mem (0, sizeof (gre_tunnel_key4_t), sizeof (uword)); + gm->tunnel_by_key6 = + hash_create_mem (0, sizeof (gre_tunnel_key6_t), sizeof (uword)); + gm->seq_num_by_key = + hash_create_mem (0, sizeof (gre_sn_key_t), sizeof (uword)); #define _(n,s) add_protocol (gm, GRE_PROTOCOL_##s, #s); foreach_gre_protocol @@ -527,14 +806,6 @@ gre_init (vlib_main_t * vm) VLIB_INIT_FUNCTION (gre_init); -gre_main_t * -gre_get_main (vlib_main_t * vm) -{ - vlib_call_init_function (vm, gre_init); - return &gre_main; -} - - /* * fd.io coding-style-patch-verification: ON *