void proto_reg_handoff_vpp(void);
static int proto_vpp = -1;
+static int proto_vpp_metadata = -1;
static int proto_vpp_opaque = -1;
+static int proto_vpp_opaque2 = -1;
static int proto_vpp_trace = -1;
static int hf_vpp_nodename = -1;
+static int hf_vpp_metadata = -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_opaque = -1;
+static int hf_vpp_buffer_opaque2 = -1;
static int hf_vpp_buffer_trace = -1;
static gint ett_vpp = -1;
static gint ett_vpp_opaque = -1;
+static gint ett_vpp_opaque2 = -1;
+static gint ett_vpp_metadata = -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_opaque2_dissector_handle;
+static dissector_handle_t vpp_metadata_dissector_handle;
static dissector_handle_t vpp_trace_dissector_handle;
-static dissector_table_t vpp_subdissector_table;
+typedef enum
+ {
+ VLIB_NODE_PROTO_HINT_NONE = 0,
+ VLIB_NODE_PROTO_HINT_ETHERNET,
+ VLIB_NODE_PROTO_HINT_IP4,
+ VLIB_NODE_PROTO_HINT_IP6,
+ VLIB_NODE_PROTO_HINT_TCP,
+ VLIB_NODE_PROTO_HINT_UDP,
+ VLIB_NODE_N_PROTO_HINTS,
+ } vlib_node_proto_hint_t;
-/* List of next dissector names that we know about */
-#define foreach_next_dissector \
-_(eth_maybefcs) \
-_(ip) \
-_(ipv6) \
-_(tcp)
+static dissector_handle_t next_dissectors[VLIB_NODE_N_PROTO_HINTS];
-#define _(a) static dissector_handle_t a##_dissector_handle;
-foreach_next_dissector;
-#undef _
-
-/*
- * node-name, next dissector name pairs
- *
- * Unfortunately, -Werror=c++-compat causes
- * the node names "ipX-not-enabled" to throw a shoe if
- * not explicitly quoted. Never mind that the first macro
- * arg is [only] used as a string (#xxx).
- */
-
-/*
- * Note: in addition to these direct mappings, we
- * send traces w/ b->data[b->current_data] = 0x45 to
- * the ip dissector, and 0x60 to the ipv6 dissector.
- *
- * It pays to add direct mappings for common places which
- * may receive broken packets during development. ip4-lookup and
- * ip6-lookup are obvious places where people send
- * hand-crafted packets which may turn out to be broken.
- */
-#define foreach_node_to_dissector_pair \
-_("ethernet-input", eth_maybefcs) \
-_("ip4-glean", ip) \
-_("ip4-icmp-error", ip) \
-_("ip4-input", ip) \
-_("ip4-input-no-checksum", ip) \
-_("ip4-local", ip) \
-_("ip4-lookup", ip) \
-_("ip4-udp-lookup", ip) \
-_("ip6-lookup", ipv6) \
-_("tcp4-output", tcp) \
-_("tcp6-output", tcp)
+/* List of next dissectors hints that we know about */
+#define foreach_next_dissector \
+_(VLIB_NODE_PROTO_HINT_ETHERNET, eth_maybefcs) \
+_(VLIB_NODE_PROTO_HINT_IP4, ip) \
+_(VLIB_NODE_PROTO_HINT_IP6, ipv6) \
+_(VLIB_NODE_PROTO_HINT_TCP, tcp) \
+_(VLIB_NODE_PROTO_HINT_UDP, udp)
static void
add_multi_line_string_to_tree(proto_tree *tree, tvbuff_t *tvb, gint start,
}
}
+static int
+dissect_vpp_metadata (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+ void* data _U_)
+{
+ int offset = 0;
+ proto_item *ti;
+ proto_tree *metadata_tree;
+ gint metadata_string_length;
+
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "VPP-Metadata");
+ col_clear(pinfo->cinfo, COL_INFO);
+
+ ti = proto_tree_add_item(tree, proto_vpp_metadata, tvb, offset, -1, ENC_NA);
+ metadata_tree = proto_item_add_subtree(ti, ett_vpp_metadata);
+
+ /* How long is the metadata string? */
+ metadata_string_length = tvb_strsize (tvb, offset);
+
+ add_multi_line_string_to_tree (metadata_tree, tvb, 0,
+ metadata_string_length,
+ hf_vpp_metadata);
+ return tvb_captured_length(tvb);
+}
+
static int
dissect_vpp_trace (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
void* data _U_)
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);
+ trace_string_length = tvb_strsize (tvb, offset);
add_multi_line_string_to_tree (trace_tree, tvb, 0,
trace_string_length,
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,
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;
+ gint opaque_string_length;
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;
+ opaque_string_length = tvb_strsize (tvb, offset);
+ add_multi_line_string_to_tree (opaque_tree, tvb, 0, opaque_string_length,
+ hf_vpp_buffer_opaque);
- 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;
+ return tvb_captured_length(tvb);
+}
- 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;
+static int
+dissect_vpp_opaque2 (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+ void* data _U_)
+{
+ int offset = 0;
+ proto_item *ti;
+ proto_tree *opaque2_tree;
+ gint opaque2_string_length;
- 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;
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "VPP-Opaque2");
+ col_clear(pinfo->cinfo, COL_INFO);
- snprintf (tmpbuf, sizeof(tmpbuf),
- "tcp.data_len: %d, tcp.flags: 0x%x",
- (u32)(o->tcp.data_len),
- (u32)(o->tcp.flags));
- PTAS;
+ ti = proto_tree_add_item(tree, proto_vpp_opaque2, tvb, offset, -1, ENC_NA);
+ opaque2_tree = proto_item_add_subtree(ti, ett_vpp_opaque2);
- 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;
+ opaque2_string_length = tvb_strsize (tvb, offset);
+ add_multi_line_string_to_tree (opaque2_tree, tvb, 0, opaque2_string_length,
+ hf_vpp_buffer_opaque2);
return tvb_captured_length(tvb);
}
{
proto_item *ti;
proto_tree *vpp_tree;
- tvbuff_t *opaque_tvb, *eth_tvb, *trace_tvb;
+ tvbuff_t *metadata_tvb, *opaque_tvb, *opaque2_tvb, *eth_tvb, *trace_tvb;
int offset = 0;
- guint8 major_version, minor_version;
- guint8 name_length;
+ guint8 major_version, minor_version, string_count, protocol_hint;
guint8 *name;
- guint16 trace_length;
- int i;
- 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
- };
+ guint len;
+ guint8 maybe_protocol_id;
+ dissector_handle_t use_this_dissector;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "VPP");
col_clear(pinfo->cinfo, COL_INFO);
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);
+ /* Number of counted strings in this trace record */
+ string_count = 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;
+ /*
+ * Hint: protocol which should be at b->data[b->current_data]
+ * It will be a while before vpp sends useful hints for every
+ * possible node, see heuristic below
+ */
+ protocol_hint = tvb_get_guint8 (tvb, offset);
offset++;
- proto_tree_add_string(vpp_tree, hf_vpp_nodename, tvb, 5, name_length,
- name);
+ /* Buffer Index */
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, ENC_BIG_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;
-
+ /* Nodename */
+ len = tvb_strsize (tvb, offset);
+ name = tvb_get_string_enc (wmem_packet_scope(), tvb, offset, len,
+ ENC_ASCII);
+ proto_tree_add_string (tree, hf_vpp_nodename, tvb, offset, len, name);
+ offset += len;
+
+ /* Metadata */
+ len = tvb_strsize (tvb, offset);
+ metadata_tvb = tvb_new_subset_remaining (tvb, offset);
+ call_dissector (vpp_metadata_dissector_handle, metadata_tvb, pinfo, tree);
+ offset += len;
+
+ /* Opaque */
+ len = tvb_strsize (tvb, offset);
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;
+ offset += len;
- trace_length = tvb_get_guint16 (tvb, offset, ENC_LITTLE_ENDIAN);
- offset += 2;
+ /* Opaque2 */
+ len = tvb_strsize (tvb, offset);
+ opaque2_tvb = tvb_new_subset_remaining (tvb, offset);
+ call_dissector (vpp_opaque2_dissector_handle, opaque2_tvb, pinfo, tree);
+ offset += len;
- if (trace_length > 0) {
+ /* Trace, if present */
+ if (string_count > 4)
+ {
+ len = tvb_strsize (tvb, offset);
trace_tvb = tvb_new_subset_remaining (tvb, offset);
- offset += trace_length;
-
call_dissector (vpp_trace_dissector_handle, trace_tvb, pinfo, tree);
+ offset += len;
}
eth_tvb = tvb_new_subset_remaining (tvb, offset);
*
* Failing that, pretend its an ethernet packet
*/
- if (!dissector_try_string (vpp_subdissector_table, name, eth_tvb,
- pinfo, tree, NULL)) {
- guint8 maybe_protocol_id;
- dissector_handle_t best_guess_dissector_handle
- = eth_maybefcs_dissector_handle;
-
+ if (protocol_hint >= array_length(next_dissectors)) {
+ ws_debug_printf ("protocol_hint %d out of range (max %d)",
+ (int) protocol_hint,
+ (int) array_length(next_dissectors));
+ protocol_hint = 0;
+ }
+ /* See setup for hint == 0 below */
+ use_this_dissector = next_dissectors [protocol_hint];
+ if (protocol_hint == 0) {
maybe_protocol_id = tvb_get_guint8 (tvb, offset);
-
+
switch (maybe_protocol_id) {
case 0x45:
- best_guess_dissector_handle = ip_dissector_handle;
+ use_this_dissector = next_dissectors[VLIB_NODE_PROTO_HINT_IP4];
break;
case 0x60:
- best_guess_dissector_handle = ipv6_dissector_handle;
+ use_this_dissector = next_dissectors[VLIB_NODE_PROTO_HINT_IP6];
break;
default:
break;
}
- call_dissector (best_guess_dissector_handle, eth_tvb, pinfo, tree);
}
-
- g_free (name);
+ call_dissector (use_this_dissector, eth_tvb, pinfo, tree);
return tvb_captured_length(tvb);
}
void
proto_register_vpp(void)
{
- static hf_register_info hf[] = {
+ static hf_register_info vpp_hf[] = {
{ &hf_vpp_buffer_index,
- { "BufferIndex", "vpp.bufferindex", FT_UINT32, BASE_HEX, NULL, 0x0,
+ { "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,
+ { "NodeName", "vpp.NodeName", FT_STRINGZ, BASE_NONE, 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 metadata_hf[] = {
+ { &hf_vpp_metadata,
+ { "Metadata", "vpp.metadata",
+ FT_STRINGZ, BASE_NONE, 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", "vpp.opaque",
+ FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL },
},
- { &hf_vpp_buffer_opaque_opaque,
- { "Opaque", "vppMetadata.opaque",
+ };
+
+ static hf_register_info opaque2_hf[] = {
+ { &hf_vpp_buffer_opaque2,
+ { "Opaque2", "vpp.opaque2",
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,
+ { "Trace", "vpp.trace", FT_STRINGZ, BASE_NONE, NULL, 0x0,
NULL, HFILL },
},
};
- static gint *ett[] = {
+ static gint *vpp_ett[] = {
&ett_vpp,
};
+ static gint *ett_metadata[] = {
+ &ett_vpp_metadata,
+ };
static gint *ett_opaque[] = {
&ett_vpp_opaque,
};
+ static gint *ett_opaque2[] = {
+ &ett_vpp_opaque2,
+ };
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));
+ proto_vpp = proto_register_protocol("VPP Dispatch Trace", "VPP", "vpp");
+ proto_register_field_array(proto_vpp, vpp_hf, array_length(vpp_hf));
+ proto_register_subtree_array (vpp_ett, array_length(vpp_ett));
register_dissector("vpp", dissect_vpp, proto_vpp);
+ proto_vpp_metadata = proto_register_protocol("VPP Buffer Metadata",
+ "VPP-Metadata",
+ "vpp-metadata");
+ proto_register_field_array(proto_vpp_metadata, metadata_hf,
+ array_length(metadata_hf));
+ proto_register_subtree_array (ett_metadata, array_length(ett_metadata));
+ register_dissector("vppMetadata", dissect_vpp_metadata, proto_vpp_metadata);
+
proto_vpp_opaque = proto_register_protocol("VPP Buffer Opaque", "VPP-Opaque",
"vpp-opaque");
proto_register_field_array(proto_vpp_opaque, opaque_hf,
proto_register_subtree_array (ett_opaque, array_length(ett_opaque));
register_dissector("vppOpaque", dissect_vpp_opaque, proto_vpp_opaque);
+ proto_vpp_opaque2 = proto_register_protocol("VPP Buffer Opaque2", "VPP-Opaque2",
+ "vpp-opaque2");
+ proto_register_field_array(proto_vpp_opaque2, opaque2_hf,
+ array_length(opaque2_hf));
+ proto_register_subtree_array (ett_opaque2, array_length(ett_opaque2));
+ register_dissector("vppOpaque2", dissect_vpp_opaque2, proto_vpp_opaque2);
+
+
proto_vpp_trace = proto_register_protocol("VPP Buffer Trace", "VPP-Trace",
"vpp-trace");
proto_register_field_array(proto_vpp_trace, trace_hf,
proto_register_subtree_array (ett_trace, array_length(ett_trace));
register_dissector("vppTrace", dissect_vpp_trace, proto_vpp_trace);
- vpp_subdissector_table = register_dissector_table
- ("vpp", "VPP per-node next dissector table", proto_vpp,
- FT_STRING, BASE_NONE);
-
-#define _(n,d) \
- d##_dissector_handle = find_dissector(#d); \
- dissector_add_string ("vpp", n, d##_dissector_handle);
- foreach_node_to_dissector_pair;
+#define _(idx,dname) next_dissectors[idx] = find_dissector (#dname);
+ foreach_next_dissector;
#undef _
+
+ /* if all else fails, dissect data as if ethernet MAC */
+ next_dissectors[VLIB_NODE_PROTO_HINT_NONE] =
+ next_dissectors [VLIB_NODE_PROTO_HINT_ETHERNET];
}
void
proto_reg_handoff_vpp(void)
{
vpp_dissector_handle = find_dissector("vpp");
+ vpp_metadata_dissector_handle = find_dissector("vppMetadata");
vpp_opaque_dissector_handle = find_dissector("vppOpaque");
+ vpp_opaque2_dissector_handle = find_dissector("vppOpaque2");
vpp_trace_dissector_handle = find_dissector("vppTrace");
dissector_add_uint("wtap_encap", WTAP_ENCAP_USER13, vpp_dissector_handle);
}
Code Review / vpp.git / commitdiff