/* packet-vpp.c * * Routines for the disassembly of fd.io vpp project * dispatch captures * * Copyright (c) 2018 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. * * This version is not to be upstreamed as-is, since it hooks up the * vpp dissector to WTAP_ENCAP_USER13, a test encap type. */ #include "config.h" #include #include #include #include #include #include #include #include void proto_register_vpp(void); void proto_reg_handoff_vpp(void); static int proto_vpp = -1; static int proto_vpp_opaque = -1; static int proto_vpp_trace = -1; static int hf_vpp_nodename = -1; static int hf_vpp_buffer_index = -1; static int hf_vpp_buffer_current_data = -1; static int hf_vpp_buffer_current_length = -1; static int hf_vpp_buffer_flags = -1; static int hf_vpp_buffer_flag_non_default_freelist = -1; static int hf_vpp_buffer_flag_traced = -1; static int hf_vpp_buffer_flag_next_present = -1; static int hf_vpp_buffer_flag_total_length_valid = -1; static int hf_vpp_buffer_flag_ext_hdr_valid = -1; static int hf_vpp_buffer_flag_l4_checksum_computed = -1; static int hf_vpp_buffer_flag_l4_checksum_correct = -1; static int hf_vpp_buffer_flag_vlan_2_deep = -1; static int hf_vpp_buffer_flag_vlan_1_deep = -1; static int hf_vpp_buffer_flag_span_clone = -1; static int hf_vpp_buffer_flag_loop_counter_valid = -1; static int hf_vpp_buffer_flag_locally_originated = -1; static int hf_vpp_buffer_flag_is_ip4 = -1; static int hf_vpp_buffer_flag_is_ip6 = -1; static int hf_vpp_buffer_flag_offload_ip_checksum = -1; static int hf_vpp_buffer_flag_offload_tcp_checksum = -1; static int hf_vpp_buffer_flag_offload_udp_checksum = -1; static int hf_vpp_buffer_flag_is_natted = -1; static int hf_vpp_buffer_flag_l2_hdr_offset_valid = -1; static int hf_vpp_buffer_flag_l3_hdr_offset_valid = -1; static int hf_vpp_buffer_flag_l4_hdr_offset_valid = -1; static int hf_vpp_buffer_flag_flow_report = -1; static int hf_vpp_buffer_flag_is_dvr = -1; static int hf_vpp_buffer_flag_qos_data_valid = -1; static int hf_vpp_buffer_flow_id = -1; static int hf_vpp_buffer_next_buffer = -1; static int hf_vpp_buffer_current_config_index = -1; static int hf_vpp_buffer_error_index = -1; static int hf_vpp_buffer_n_add_refs = -1; static int hf_vpp_buffer_buffer_pool_index = -1; static int hf_vpp_buffer_opaque_raw = -1; static int hf_vpp_buffer_opaque_opaque = -1; static int hf_vpp_buffer_trace = -1; static gint ett_vpp = -1; static gint ett_vpp_opaque = -1; static gint ett_vpp_trace = -1; static dissector_handle_t vpp_dissector_handle; static dissector_handle_t vpp_opaque_dissector_handle; static dissector_handle_t vpp_trace_dissector_handle; static dissector_handle_t eth_dissector_handle; static dissector_handle_t ip4_dissector_handle; static dissector_handle_t ip6_dissector_handle; static dissector_handle_t udp_dissector_handle; #define foreach_node_to_dissector_handle \ _("ip6-lookup", "ipv6", ip6_dissector_handle) \ _("ip4-input-no-checksum", "ip", ip4_dissector_handle) \ _("ip4-lookup", "ip", ip4_dissector_handle) \ _("ip4-local", "ip", ip4_dissector_handle) \ _("ip4-udp-lookup", "ip", udp_dissector_handle) \ _("ip4-icmp-error", "ip", ip4_dissector_handle) \ _("ip4-glean", "ip", ip4_dissector_handle) \ _("ethernet-input", "eth_maybefcs", eth_dissector_handle) static void add_multi_line_string_to_tree(proto_tree *tree, tvbuff_t *tvb, gint start, gint len, int hf) { gint next; int line_len; int data_len; while (len > 0) { line_len = tvb_find_line_end(tvb, start, len, &next, FALSE); data_len = next - start; proto_tree_add_string(tree, hf, tvb, start, data_len, tvb_format_stringzpad(tvb, start, line_len)); start += data_len; len -= data_len; } } static int dissect_vpp_trace (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { int offset = 0; proto_item *ti; proto_tree *trace_tree; gint trace_string_length; col_set_str(pinfo->cinfo, COL_PROTOCOL, "VPP-Trace"); col_clear(pinfo->cinfo, COL_INFO); ti = proto_tree_add_item(tree, proto_vpp_trace, tvb, offset, -1, ENC_NA); trace_tree = proto_item_add_subtree(ti, ett_vpp_trace); /* How long is the trace string? */ (void ) tvb_get_stringz_enc (wmem_packet_scope(), tvb, 0, &trace_string_length, ENC_ASCII); add_multi_line_string_to_tree (trace_tree, tvb, 0, trace_string_length, hf_vpp_buffer_trace); return tvb_captured_length(tvb); } /* * BIG FAT WARNING: it's impossible to #include the vpp header files, * so this is a private copy of .../src/vnet/buffer.h, with * some vpp typedefs thrown in for good measure. */ typedef unsigned int u32; typedef unsigned short int u16; typedef short int i16; typedef unsigned char u8; typedef unsigned long long u64; typedef struct { u32 sw_if_index[2]; i16 l2_hdr_offset; i16 l3_hdr_offset; i16 l4_hdr_offset; u8 feature_arc_index; u8 dont_waste_me; union { /* IP4/6 buffer opaque. */ struct { /* Adjacency from destination IP address lookup [VLIB_TX]. Adjacency from source IP address lookup [VLIB_RX]. This gets set to ~0 until source lookup is performed. */ u32 adj_index[2]; union { struct { /* Flow hash value for this packet computed from IP src/dst address protocol and ports. */ u32 flow_hash; union { /* next protocol */ u32 save_protocol; /* Hint for transport protocols */ u32 fib_index; }; /* Rewrite length */ u32 save_rewrite_length; /* MFIB RPF ID */ u32 rpf_id; }; /* ICMP */ struct { u8 type; u8 code; u32 data; } icmp; /* reassembly */ union { /* in/out variables */ struct { u32 next_index; /* index of next node - ignored if "feature" node */ u16 estimated_mtu; /* estimated MTU calculated during reassembly */ }; /* internal variables used during reassembly */ struct { u16 fragment_first; u16 fragment_last; u16 range_first; u16 range_last; u32 next_range_bi; u16 ip6_frag_hdr_offset; }; } reass; }; } ip; /* * MPLS: * data copied from the MPLS header that was popped from the packet * during the look-up. */ struct { /* do not overlay w/ ip.adj_index[0,1] nor flow hash */ u32 pad[3]; u8 ttl; u8 exp; u8 first; /* Rewrite length */ u32 save_rewrite_length; /* * BIER - the number of bytes in the header. * the len field in the header is not authoritative. It's the * value in the table that counts. */ struct { u8 n_bytes; } bier; } mpls; /* l2 bridging path, only valid there */ struct opaque_l2 { u32 feature_bitmap; u16 bd_index; /* bridge-domain index */ u8 l2_len; /* ethernet header length */ u8 shg; /* split-horizon group */ u16 l2fib_sn; /* l2fib bd/int seq_num */ u8 bd_age; /* aging enabled */ } l2; /* l2tpv3 softwire encap, only valid there */ struct { u32 pad[4]; /* do not overlay w/ ip.adj_index[0,1] */ u8 next_index; u32 session_index; } l2t; /* L2 classify */ struct { struct opaque_l2 pad; union { u32 table_index; u32 opaque_index; }; u64 hash; } l2_classify; /* vnet policer */ struct { u32 pad[8 - 2 - 1]; /* to end of opaque */ u32 index; } policer; /* interface output features */ struct { u32 flags; u32 sad_index; } ipsec; /* MAP */ struct { u16 mtu; } map; /* MAP-T */ struct { u32 map_domain_index; struct { u32 saddr, daddr; u16 frag_offset; //Fragmentation header offset u16 l4_offset; //L4 header overall offset u8 l4_protocol; //The final protocol number } v6; //Used by ip6_map_t only u16 checksum_offset; //L4 checksum overall offset u16 mtu; //Exit MTU } map_t; /* IP Fragmentation */ struct { u32 pad[2]; /* do not overlay w/ ip.adj_index[0,1] */ u16 mtu; u8 next_index; u8 flags; //See ip_frag.h } ip_frag; /* COP - configurable junk filter(s) */ struct { /* Current configuration index. */ u32 current_config_index; } cop; /* LISP */ struct { /* overlay address family */ u16 overlay_afi; } lisp; /* TCP */ struct { u32 connection_index; u32 seq_number; u32 seq_end; u32 ack_number; u16 hdr_offset; /**< offset relative to ip hdr */ u16 data_offset; /**< offset relative to ip hdr */ u16 data_len; /**< data len */ u8 flags; } tcp; /* SCTP */ struct { u32 connection_index; u16 sid; /**< Stream ID */ u16 ssn; /**< Stream Sequence Number */ u32 tsn; /**< Transmission Sequence Number */ u16 hdr_offset; /**< offset relative to ip hdr */ u16 data_offset; /**< offset relative to ip hdr */ u16 data_len; /**< data len */ u8 subconn_idx; /**< index of the sub_connection being used */ u8 flags; } sctp; /* SNAT */ struct { u32 flags; } snat; u32 unused[6]; }; } vnet_buffer_opaque_t; #define PTAS proto_tree_add_string(opaque_tree, \ hf_vpp_buffer_opaque_opaque, \ tvb, 0, strlen(tmpbuf), tmpbuf) static int dissect_vpp_opaque (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { int offset = 0; proto_item *ti; proto_tree *opaque_tree; char tmpbuf [512]; int print_offset; guint32 opaque[10]; vnet_buffer_opaque_t _o, *o = &_o; int i; col_set_str(pinfo->cinfo, COL_PROTOCOL, "VPP-Opaque"); col_clear(pinfo->cinfo, COL_INFO); ti = proto_tree_add_item(tree, proto_vpp_opaque, tvb, offset, -1, ENC_NA); opaque_tree = proto_item_add_subtree(ti, ett_vpp_opaque); print_offset = 0; for (i = 0; i < 10; i++) { opaque[i] = tvb_get_guint32 (tvb, offset + 4*i, ENC_LITTLE_ENDIAN); snprintf (tmpbuf + print_offset, sizeof(tmpbuf) - print_offset, "%08x ", opaque[i]); print_offset = strlen (tmpbuf); } offset += 40; proto_tree_add_string (opaque_tree, hf_vpp_buffer_opaque_raw, tvb, 0, strlen(tmpbuf), tmpbuf); memset (o, 0, sizeof (*o)); memcpy (o, opaque, sizeof (opaque)); snprintf (tmpbuf, sizeof(tmpbuf), "sw_if_index[VLIB_RX]: %d, sw_if_index[VLIB_TX]: %d", o->sw_if_index[0], o->sw_if_index[1]); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "L2 offset %d, L3 offset %d, L4 offset %d, feature arc index %d", (u32)(o->l2_hdr_offset), (u32)(o->l3_hdr_offset), (u32)(o->l4_hdr_offset), (u32)(o->feature_arc_index)); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "ip.adj_index[VLIB_RX]: %d, ip.adj_index[VLIB_TX]: %d", (u32)(o->ip.adj_index[0]), (u32)(o->ip.adj_index[1])); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "ip.flow_hash: 0x%x, ip.save_protocol: 0x%x, ip.fib_index: %d", o->ip.flow_hash, o->ip.save_protocol, o->ip.fib_index); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "ip.save_rewrite_length: %d, ip.rpf_id: %d", o->ip.save_rewrite_length, o->ip.rpf_id); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "ip.icmp.type: %d ip.icmp.code: %d, ip.icmp.data: 0x%x", (u32)(o->ip.icmp.type), (u32)(o->ip.icmp.code), o->ip.icmp.data); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "ip.reass.next_index: %d, ip.reass.estimated_mtu: %d", o->ip.reass.next_index, (u32)(o->ip.reass.estimated_mtu)); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "ip.reass.fragment_first: %d ip.reass.fragment_last: %d", (u32)(o->ip.reass.fragment_first), (u32)(o->ip.reass.fragment_last)); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "ip.reass.range_first: %d ip.reass.range_last: %d", (u32)(o->ip.reass.range_first), (u32)(o->ip.reass.range_last)); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "ip.reass.next_range_bi: 0x%x, ip.reass.ip6_frag_hdr_offset: %d", o->ip.reass.next_range_bi, (u32)(o->ip.reass.ip6_frag_hdr_offset)); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "mpls.ttl: %d, mpls.exp: %d, mpls.first: %d, " "mpls.save_rewrite_length: %d, mpls.bier.n_bytes: %d", (u32)(o->mpls.ttl), (u32)(o->mpls.exp), (u32)(o->mpls.first), o->mpls.save_rewrite_length, (u32)(o->mpls.bier.n_bytes)); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "l2.feature_bitmap: %08x, l2.bd_index: %d, l2.l2_len: %d, " "l2.shg: %d, l2.l2fib_sn: %d, l2.bd_age: %d", o->l2.feature_bitmap, (u32)(o->l2.bd_index), (u32)(o->l2.l2_len), (u32)(o->l2.shg), (u32)(o->l2.l2fib_sn), (u32)(o->l2.bd_age)); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "l2t.next_index: %d, l2t.session_index: %d", (u32)(o->l2t.next_index), o->l2t.session_index); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "l2_classify.table_index: %d, l2_classify.opaque_index: %d, " "l2_classify.hash: 0x%llx", o->l2_classify.table_index, o->l2_classify.opaque_index, o->l2_classify.hash); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "policer.index: %d", o->policer.index); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "ipsec.flags: 0x%x, ipsec.sad_index: %d", o->ipsec.flags, o->ipsec.sad_index); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "map.mtu: %d", (u32)(o->map.mtu)); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "map_t.v6.saddr: 0x%x, map_t.v6.daddr: 0x%x, " "map_t.v6.frag_offset: %d, map_t.v6.l4_offset: %d", o->map_t.v6.saddr, o->map_t.v6.daddr, (u32)(o->map_t.v6.frag_offset), (u32)(o->map_t.v6.l4_offset)); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "map_t.v6.l4_protocol: %d, map_t.checksum_offset: %d, " "map_t.mtu: %d", (u32)(o->map_t.v6.l4_protocol), (u32)(o->map_t.checksum_offset), (u32)(o->map_t.mtu)); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "ip_frag.mtu: %d, ip_frag.next_index: %d, ip_frag.flags: 0x%x", (u32)(o->ip_frag.mtu), (u32)(o->ip_frag.next_index), (u32)(o->ip_frag.flags)); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "cop.current_config_index: %d", o->cop.current_config_index); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "lisp.overlay_afi: %d", (u32)(o->lisp.overlay_afi)); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "tcp.connection_index: %d, tcp.seq_number: %d, tcp.seq_end: %d, " "tcp.ack_number: %d, tcp.hdr_offset: %d, tcp.data_offset: %d", o->tcp.connection_index, o->tcp.seq_number, o->tcp.seq_end, o->tcp.ack_number, (u32)(o->tcp.hdr_offset), (u32)(o->tcp.data_offset)); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "tcp.data_len: %d, tcp.flags: 0x%x", (u32)(o->tcp.data_len), (u32)(o->tcp.flags)); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "sctp.connection_index: %d, sctp.sid: %d, sctp.ssn: %d, " "sctp.tsn: %d, sctp.hdr_offset: %d", o->sctp.connection_index, (u32)(o->sctp.sid), (u32)(o->sctp.ssn), (u32)(o->sctp.tsn), (u32)(o->sctp.hdr_offset)); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "sctp.data_offset: %d, sctp.data_len: %d, sctp.subconn_idx: %d, " "sctp.flags: 0x%x", (u32)(o->sctp.data_offset), (u32)(o->sctp.data_len), (u32)(o->sctp.subconn_idx), (u32)(o->sctp.flags)); PTAS; snprintf (tmpbuf, sizeof(tmpbuf), "snat.flags: 0x%x", o->snat.flags); PTAS; return tvb_captured_length(tvb); } static int dissect_vpp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { proto_item *ti; proto_tree *vpp_tree; tvbuff_t *opaque_tvb, *eth_tvb, *trace_tvb; int offset = 0; guint8 major_version, minor_version; guint8 name_length; guint8 *name; guint16 trace_length; int i, found; static const int *buffer_flags[] = { &hf_vpp_buffer_flag_non_default_freelist, &hf_vpp_buffer_flag_traced, &hf_vpp_buffer_flag_next_present, &hf_vpp_buffer_flag_total_length_valid, &hf_vpp_buffer_flag_ext_hdr_valid, &hf_vpp_buffer_flag_l4_checksum_computed, &hf_vpp_buffer_flag_l4_checksum_correct, &hf_vpp_buffer_flag_vlan_2_deep, &hf_vpp_buffer_flag_vlan_1_deep, &hf_vpp_buffer_flag_span_clone, &hf_vpp_buffer_flag_loop_counter_valid, &hf_vpp_buffer_flag_locally_originated, &hf_vpp_buffer_flag_is_ip4, &hf_vpp_buffer_flag_is_ip6, &hf_vpp_buffer_flag_offload_ip_checksum, &hf_vpp_buffer_flag_offload_tcp_checksum, &hf_vpp_buffer_flag_offload_udp_checksum, &hf_vpp_buffer_flag_is_natted, &hf_vpp_buffer_flag_l2_hdr_offset_valid, &hf_vpp_buffer_flag_l3_hdr_offset_valid, &hf_vpp_buffer_flag_l4_hdr_offset_valid, &hf_vpp_buffer_flag_flow_report, &hf_vpp_buffer_flag_is_dvr, &hf_vpp_buffer_flag_qos_data_valid, NULL }; col_set_str(pinfo->cinfo, COL_PROTOCOL, "VPP"); col_clear(pinfo->cinfo, COL_INFO); ti = proto_tree_add_item(tree, proto_vpp, tvb, offset, -1, ENC_NA); vpp_tree = proto_item_add_subtree(ti, ett_vpp); major_version = tvb_get_guint8 (tvb, offset); offset++; minor_version = tvb_get_guint8 (tvb, offset); offset++; if (major_version != 1 || minor_version != 0) ws_debug_printf ("WARNING: version mismatch (%d, %d)", major_version, minor_version); /* Skip the buffer index */ offset += 4; /* Recover the node name */ name_length = tvb_get_guint8 (tvb, offset); offset++; name = (guint8 *) g_malloc (name_length + 1); for (i = 0; i < name_length; i++, offset++) { name[i] = tvb_get_guint8 (tvb, offset); } name[i] = 0; offset++; proto_tree_add_string(vpp_tree, hf_vpp_nodename, tvb, 5, name_length, name); proto_tree_add_item(vpp_tree, hf_vpp_buffer_index, tvb, 0 /* bi at offset 0 */, 4, ENC_LITTLE_ENDIAN); proto_tree_add_item(vpp_tree, hf_vpp_buffer_current_data, tvb, offset, 2, ENC_LITTLE_ENDIAN); offset += 2; proto_tree_add_item(vpp_tree, hf_vpp_buffer_current_length, tvb, offset, 2, ENC_LITTLE_ENDIAN); offset += 2; proto_tree_add_bitmask(vpp_tree, tvb, offset, hf_vpp_buffer_flags, ett_vpp, buffer_flags, ENC_LITTLE_ENDIAN); offset += 4; proto_tree_add_item(vpp_tree, hf_vpp_buffer_flow_id, tvb, offset, 4, ENC_LITTLE_ENDIAN); offset += 4; proto_tree_add_item(vpp_tree, hf_vpp_buffer_next_buffer, tvb, offset, 4, ENC_LITTLE_ENDIAN); offset += 4; proto_tree_add_item(vpp_tree, hf_vpp_buffer_current_config_index, tvb, offset, 4, ENC_LITTLE_ENDIAN); offset += 4; proto_tree_add_item(vpp_tree, hf_vpp_buffer_error_index, tvb, offset, 2, ENC_LITTLE_ENDIAN); offset += 2; proto_tree_add_item(vpp_tree, hf_vpp_buffer_n_add_refs, tvb, offset, 1, ENC_LITTLE_ENDIAN); offset += 1; proto_tree_add_item(vpp_tree, hf_vpp_buffer_buffer_pool_index, tvb, offset, 1, ENC_LITTLE_ENDIAN); offset += 1; opaque_tvb = tvb_new_subset_remaining (tvb, offset); call_dissector (vpp_opaque_dissector_handle, opaque_tvb, pinfo, tree); /* Skip opaque */ offset += 40; /* skip second opaque line */ offset += 64; trace_length = tvb_get_guint16 (tvb, offset, ENC_LITTLE_ENDIAN); offset += 2; if (trace_length > 0) { trace_tvb = tvb_new_subset_remaining (tvb, offset); offset += trace_length; call_dissector (vpp_trace_dissector_handle, trace_tvb, pinfo, tree); } eth_tvb = tvb_new_subset_remaining (tvb, offset); found = 0; #define _(a,b,c) \ { \ if (!strcmp (name, a)) { \ call_dissector (c, eth_tvb, pinfo, tree); \ found = 1; \ } \ } foreach_node_to_dissector_handle; #undef _ if (found == 0) call_dissector (eth_dissector_handle, eth_tvb, pinfo, tree); g_free (name); return tvb_captured_length(tvb); } void proto_register_vpp(void) { static hf_register_info hf[] = { { &hf_vpp_buffer_index, { "BufferIndex", "vpp.bufferindex", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }, }, { &hf_vpp_nodename, { "NodeName", "vpp.nodename", FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }, }, { &hf_vpp_buffer_current_data, { "CurrentData", "vpp.current_data", FT_INT16, BASE_DEC, NULL, 0x0, NULL, HFILL }, }, { &hf_vpp_buffer_current_length, { "CurrentLength", "vpp.current_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }, }, /* * Warning: buffer flag bits are not cast in concrete, and it's * impossible to imagine trying to compile WS with even a subset * of the actual header files. * * See .../src/vlib/buffer.h, .../src/vnet/buffer.h in * the fd.io vpp source tree. */ { &hf_vpp_buffer_flags, { "BufferFlags", "vpp.flags", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }, }, { &hf_vpp_buffer_flag_non_default_freelist, { "NonDefaultFreelist", "vpp.flags.non_default_freelist", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x1, NULL, HFILL }, }, { &hf_vpp_buffer_flag_traced, { "Traced", "vpp.flags.traced", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x2, NULL, HFILL }, }, { &hf_vpp_buffer_flag_next_present, { "NextPresent", "vpp.flags.next_present", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x4, NULL, HFILL }, }, { &hf_vpp_buffer_flag_total_length_valid, { "TotalLengthValid", "vpp.flags.total_length_valid", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x8, NULL, HFILL }, }, { &hf_vpp_buffer_flag_ext_hdr_valid, { "ExtHeaderValid", "vpp.flags.ext_hdr_valid", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x10, NULL, HFILL }, }, { &hf_vpp_buffer_flag_l4_checksum_computed, { "L4ChecksumComputed", "vpp.flags.l4_checksum_computed", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x80000000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_l4_checksum_correct, { "L4ChecksumCorrect", "vpp.flags.l4_checksum_correct", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x40000000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_vlan_2_deep, { "Vlan2Deep", "vpp.flags.vlan_2_deep", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x20000000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_vlan_1_deep, { "Vlan1Deep", "vpp.flags.vlan_1_deep", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x10000000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_span_clone, { "SpanClone", "vpp.flags.span_clone", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x08000000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_loop_counter_valid, { "LoopCounterValid", "vpp.flags.loop_counter_valid", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x04000000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_locally_originated, { "LocallyOriginated", "vpp.flags.locally_originated", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x02000000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_is_ip4, { "IsIP4", "vpp.flags.is_ip4", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x01000000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_is_ip6, { "IsIP4", "vpp.flags.is_ip6", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00800000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_offload_ip_checksum, { "OffloadIPChecksum", "vpp.flags.offload_ip_checksum", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00400000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_offload_tcp_checksum, { "OffloadTCPChecksum", "vpp.flags.offload_tcp_checksum", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00200000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_offload_udp_checksum, { "OffloadUDPChecksum", "vpp.flags.offload_udp_checksum", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00100000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_is_natted, { "IsNATted", "vpp.flags.is_natted", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00080000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_l2_hdr_offset_valid, { "L2HdrOffsetValid", "vpp.flags.l2_hdr_offset_valid", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00040000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_l3_hdr_offset_valid, { "L3HdrOffsetValid", "vpp.flags.l3_hdr_offset_valid", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00020000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_l4_hdr_offset_valid, { "L4HdrOffsetValid", "vpp.flags.l4_hdr_offset_valid", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00010000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_flow_report, { "FlowReport", "vpp.flags.flow_report", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00008000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_is_dvr, { "IsDVR", "vpp.flags.is_dvr", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00004000, NULL, HFILL }, }, { &hf_vpp_buffer_flag_qos_data_valid, { "QOSDataValid", "vpp.flags.qos_data_valid", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00002000, NULL, HFILL }, }, { &hf_vpp_buffer_flow_id, { "FlowID", "vpp.flow_id", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }, }, { &hf_vpp_buffer_next_buffer, { "NextBuffer", "vpp.next_buffer", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }, }, { &hf_vpp_buffer_current_config_index, { "CurrentConfigIndex", "vpp.current_config_index", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }, }, { &hf_vpp_buffer_error_index, { "ErrorIndex", "vpp.error_index", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }, }, { &hf_vpp_buffer_n_add_refs, { "AddRefs", "vpp.n_add_refs_index", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }, }, { &hf_vpp_buffer_buffer_pool_index, { "BufferPoolIndex", "vpp.buffer_pool_index", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }, }, }; static hf_register_info opaque_hf[] = { { &hf_vpp_buffer_opaque_raw, { "Raw ", "vppMetadata.opaque_raw", FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }, }, { &hf_vpp_buffer_opaque_opaque, { "Opaque", "vppMetadata.opaque", FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }, }, }; static hf_register_info trace_hf[] = { { &hf_vpp_buffer_trace, { "Trace", "vppTrace.trace", FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }, }, }; static gint *ett[] = { &ett_vpp, }; static gint *ett_opaque[] = { &ett_vpp_opaque, }; static gint *ett_trace[] = { &ett_vpp_trace, }; proto_vpp = proto_register_protocol("VPP Buffer Metadata", "VPP", "vpp"); proto_register_field_array(proto_vpp, hf, array_length(hf)); proto_register_subtree_array (ett, array_length(ett)); register_dissector("vpp", dissect_vpp, proto_vpp); proto_vpp_opaque = proto_register_protocol("VPP Buffer Opaque", "VPP-Opaque", "vpp-opaque"); proto_register_field_array(proto_vpp_opaque, opaque_hf, array_length(opaque_hf)); proto_register_subtree_array (ett_opaque, array_length(ett_opaque)); register_dissector("vppOpaque", dissect_vpp_opaque, proto_vpp_opaque); proto_vpp_trace = proto_register_protocol("VPP Buffer Trace", "VPP-Trace", "vpp-trace"); proto_register_field_array(proto_vpp_trace, trace_hf, array_length(trace_hf)); proto_register_subtree_array (ett_trace, array_length(ett_trace)); register_dissector("vppTrace", dissect_vpp_trace, proto_vpp_trace); #define _(a,b,c) c = find_dissector(b); foreach_node_to_dissector_handle; #undef _ } void proto_reg_handoff_vpp(void) { vpp_dissector_handle = find_dissector("vpp"); vpp_opaque_dissector_handle = find_dissector("vppOpaque"); vpp_trace_dissector_handle = find_dissector("vppTrace"); dissector_add_uint("wtap_encap", WTAP_ENCAP_USER13, vpp_dissector_handle); } /* * Editor modelines - http://www.wireshark.org/tools/modelines.html * * Local variables: * c-basic-offset: 4 * tab-width: 8 * indent-tabs-mode: nil * End: * * vi: set shiftwidth=4 tabstop=8 expandtab: * :indentSize=4:tabSize=8:noTabs=true: */