diff options
Diffstat (limited to 'epan/dissectors/packet-sll.c')
-rw-r--r-- | epan/dissectors/packet-sll.c | 235 |
1 files changed, 115 insertions, 120 deletions
diff --git a/epan/dissectors/packet-sll.c b/epan/dissectors/packet-sll.c index a32d565314..3c1485d14e 100644 --- a/epan/dissectors/packet-sll.c +++ b/epan/dissectors/packet-sll.c @@ -7,9 +7,6 @@ * * SPDX-License-Identifier: GPL-2.0-or-later */ - -#define NEW_PROTO_TREE_API - #include "config.h" #include <epan/packet.h> @@ -77,6 +74,7 @@ static const value_string ltype_vals[] = { { LINUX_SLL_P_IRDA_LAP, "IrDA LAP" }, { LINUX_SLL_P_ISI, "ISI" }, { LINUX_SLL_P_IEEE802154, "IEEE 802.15.4" }, + { LINUX_SLL_P_MCTP, "MCTP" }, { 0, NULL } }; @@ -86,72 +84,23 @@ static dissector_handle_t sll2_handle; static dissector_handle_t ethertype_handle; static dissector_handle_t netlink_handle; -static header_field_info *hfi_sll = NULL; - static int proto_sll; -static int sll_tap = -1; - -#define SLL_HFI_INIT HFI_INIT(proto_sll) - -static header_field_info hfi_sll_pkttype SLL_HFI_INIT = - { "Packet type", "sll.pkttype", FT_UINT16, BASE_DEC, - VALS(packet_type_vals), 0x0, NULL, HFILL }; - -/* ARP hardware type? With Linux extensions? */ -static header_field_info hfi_sll_hatype SLL_HFI_INIT = - { "Link-layer address type", "sll.hatype", FT_UINT16, BASE_DEC, - VALS(arp_hrd_vals), 0x0, NULL, HFILL }; - -static header_field_info hfi_sll_halen SLL_HFI_INIT = - { "Link-layer address length", "sll.halen", FT_UINT16, BASE_DEC, - NULL, 0x0, NULL, HFILL }; - -/* Source address if it's an Ethernet-type address */ -static header_field_info hfi_sll_src_eth SLL_HFI_INIT = - { "Source", "sll.src.eth", FT_ETHER, BASE_NONE, - NULL, 0x0, "Source link-layer address", HFILL }; - -/* Source address if it's an IPv4 address */ -static header_field_info hfi_sll_src_ipv4 SLL_HFI_INIT = - { "Source", "sll.src.ipv4", FT_IPv4, BASE_NONE, - NULL, 0x0, "Source link-layer address", HFILL }; - -/* Source address if it's not an Ethernet-type address */ -static header_field_info hfi_sll_src_other SLL_HFI_INIT = - { "Source", "sll.src.other", FT_BYTES, BASE_NONE, - NULL, 0x0, "Source link-layer address", HFILL }; - -/* Unused remaining bytes */ -static header_field_info hfi_sll_unused SLL_HFI_INIT = - { "Unused", "sll.unused", FT_BYTES, BASE_NONE, - NULL, 0x0, "Unused bytes", HFILL }; - -/* if the protocol field is an internal Linux protocol type */ -static header_field_info hfi_sll_ltype SLL_HFI_INIT = - { "Protocol", "sll.ltype", FT_UINT16, BASE_HEX, - VALS(ltype_vals), 0x0, "Linux protocol type", HFILL }; - -/* if the protocol field is a GRE protocol type */ -static header_field_info hfi_sll_gretype SLL_HFI_INIT = - { "Protocol", "sll.gretype", FT_UINT16, BASE_HEX, - VALS(gre_typevals), 0x0, "GRE protocol type", HFILL }; - -/* registered here but handled in ethertype.c */ -static header_field_info hfi_sll_etype SLL_HFI_INIT = - { "Protocol", "sll.etype", FT_UINT16, BASE_HEX, - VALS(etype_vals), 0x0, "Ethernet protocol type", HFILL }; - -static header_field_info hfi_sll_trailer SLL_HFI_INIT = - { "Trailer", "sll.trailer", FT_BYTES, BASE_NONE, - NULL, 0x0, NULL, HFILL }; - -/* SLL2 only */ -static header_field_info hfi_sll_ifindex SLL_HFI_INIT = - { "Interface index", "sll.ifindex", FT_UINT16, BASE_DEC, - NULL, 0x0, NULL, HFILL }; - - -static gint ett_sll = -1; +static int sll_tap; + +static int hf_sll_etype; +static int hf_sll_gretype; +static int hf_sll_halen; +static int hf_sll_hatype; +static int hf_sll_ifindex; +static int hf_sll_ltype; +static int hf_sll_pkttype; +static int hf_sll_src_eth; +static int hf_sll_src_ipv4; +static int hf_sll_src_other; +static int hf_sll_trailer; +static int hf_sll_unused; + +static gint ett_sll; static dissector_table_t sll_hatype_dissector_table; static dissector_table_t sll_ltype_dissector_table; @@ -159,7 +108,7 @@ static dissector_table_t gre_dissector_table; static void sll_prompt(packet_info *pinfo, gchar* result) { - g_snprintf(result, MAX_DECODE_AS_PROMPT_LEN, "SLL protocol type 0x%04x as", + snprintf(result, MAX_DECODE_AS_PROMPT_LEN, "SLL protocol type 0x%04x as", GPOINTER_TO_UINT(p_get_proto_data(pinfo->pool, pinfo, proto_sll, 0))); } @@ -186,45 +135,49 @@ static const char* sll_conv_get_filter_type(conv_item_t* conv, conv_filter_type_ } static ct_dissector_info_t sll_ct_dissector_info = {&sll_conv_get_filter_type}; -static address no_dst = {AT_NONE, 0, NULL, NULL}; +static address no_dst = ADDRESS_INIT_NONE; static tap_packet_status -sll_conversation_packet(void *pct, packet_info *pinfo, epan_dissect_t *edt _U_, const void *vip) +sll_conversation_packet(void *pct, packet_info *pinfo, epan_dissect_t *edt _U_, const void *vip, tap_flags_t flags) { conv_hash_t *hash = (conv_hash_t*) pct; + hash->flags = flags; + const sll_tap_data *tap_data = (const sll_tap_data*)vip; - add_conversation_table_data(hash, &tap_data->src_address, &no_dst, 0, 0, 1, pinfo->fd->pkt_len, &pinfo->rel_ts, &pinfo->abs_ts, &sll_ct_dissector_info, ENDPOINT_NONE); + add_conversation_table_data(hash, &tap_data->src_address, &no_dst, 0, 0, 1, pinfo->fd->pkt_len, &pinfo->rel_ts, &pinfo->abs_ts, &sll_ct_dissector_info, CONVERSATION_NONE); return TAP_PACKET_REDRAW; } -static const char* sll_host_get_filter_type(hostlist_talker_t* host, conv_filter_type_e filter) +static const char* sll_endpoint_get_filter_type(endpoint_item_t* endpoint, conv_filter_type_e filter) { - if ((filter == CONV_FT_SRC_ADDRESS) && (host->myaddress.type == AT_ETHER)) + if ((filter == CONV_FT_SRC_ADDRESS) && (endpoint->myaddress.type == AT_ETHER)) return "sll.src.eth"; - if ((filter == CONV_FT_ANY_ADDRESS) && (host->myaddress.type == AT_ETHER)) + if ((filter == CONV_FT_ANY_ADDRESS) && (endpoint->myaddress.type == AT_ETHER)) return "sll.src.eth"; - if ((filter == CONV_FT_SRC_ADDRESS) && (host->myaddress.type == AT_IPv4)) + if ((filter == CONV_FT_SRC_ADDRESS) && (endpoint->myaddress.type == AT_IPv4)) return "sll.src.ipv4"; - if ((filter == CONV_FT_ANY_ADDRESS) && (host->myaddress.type == AT_IPv4)) + if ((filter == CONV_FT_ANY_ADDRESS) && (endpoint->myaddress.type == AT_IPv4)) return "sll.src.ipv4"; return CONV_FILTER_INVALID; } -static hostlist_dissector_info_t sll_host_dissector_info = {&sll_host_get_filter_type}; +static et_dissector_info_t sll_endpoint_dissector_info = {&sll_endpoint_get_filter_type}; static tap_packet_status -sll_hostlist_packet(void *pit, packet_info *pinfo, epan_dissect_t *edt _U_, const void *vip) +sll_endpoint_packet(void *pit, packet_info *pinfo, epan_dissect_t *edt _U_, const void *vip, tap_flags_t flags) { conv_hash_t *hash = (conv_hash_t*) pit; + hash->flags = flags; + const sll_tap_data *tap_data = (const sll_tap_data*)vip; - add_hostlist_table_data(hash, &tap_data->src_address, 0, TRUE, 1, pinfo->fd->pkt_len, &sll_host_dissector_info, ENDPOINT_NONE); + add_endpoint_table_data(hash, &tap_data->src_address, 0, TRUE, 1, pinfo->fd->pkt_len, &sll_endpoint_dissector_info, ENDPOINT_NONE); return TAP_PACKET_REDRAW; } @@ -293,33 +246,33 @@ add_ll_address(proto_tree *tree, packet_info *pinfo, tvbuff_t *tvb, * For now, we just assume ha_len 4 is IPv4 and ha_len 6 * is Ethernet. */ - proto_tree_add_item_ret_uint(tree, &hfi_sll_halen, tvb, halen_offset, halen_len, ENC_BIG_ENDIAN, &ha_len); + proto_tree_add_item_ret_uint(tree, hf_sll_halen, tvb, halen_offset, halen_len, ENC_BIG_ENDIAN, &ha_len); switch (ha_len) { case 4: set_address_tvb(&pinfo->dl_src, AT_IPv4, 4, tvb, ha_offset); copy_address_shallow(&pinfo->src, &pinfo->dl_src); copy_address_wmem(wmem_file_scope(), &tap_data->src_address, &pinfo->src); - proto_tree_add_item(tree, &hfi_sll_src_ipv4, tvb, ha_offset, 4, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_sll_src_ipv4, tvb, ha_offset, 4, ENC_BIG_ENDIAN); break; case 6: set_address_tvb(&pinfo->dl_src, AT_ETHER, 6, tvb, ha_offset); copy_address_shallow(&pinfo->src, &pinfo->dl_src); copy_address_wmem(wmem_file_scope(), &tap_data->src_address, &pinfo->src); - proto_tree_add_item(tree, &hfi_sll_src_eth, tvb, ha_offset, 6, ENC_NA); + proto_tree_add_item(tree, hf_sll_src_eth, tvb, ha_offset, 6, ENC_NA); break; case 0: break; default: - proto_tree_add_item(tree, &hfi_sll_src_other, tvb, + proto_tree_add_item(tree, hf_sll_src_other, tvb, ha_offset, ha_len > 8 ? 8 : ha_len, ENC_NA); break; } /* Not all bytes of SLL_ADDRLEN have been used. Add remaining as unused */ if (ha_len < SLL_ADDRLEN) - proto_tree_add_item(tree, &hfi_sll_unused, tvb, ha_offset + ha_len, - SLL_ADDRLEN - ha_len, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_sll_unused, tvb, ha_offset + ha_len, + SLL_ADDRLEN - ha_len, ENC_NA); } static guint16 @@ -337,7 +290,7 @@ add_protocol_type(proto_tree *fh_tree, tvbuff_t *tvb, int protocol_offset, * be trailer data. * XXX - do the same thing we do for packets with Ethertypes? */ - proto_tree_add_uint(fh_tree, &hfi_sll_ltype, tvb, + proto_tree_add_uint(fh_tree, hf_sll_ltype, tvb, protocol_offset, 2, protocol); } else { switch (hatype) { @@ -351,12 +304,12 @@ add_protocol_type(proto_tree *fh_tree, tvbuff_t *tvb, int protocol_offset, * so we can't provide the flags and version to * the dissector. */ - proto_tree_add_uint(fh_tree, &hfi_sll_gretype, tvb, + proto_tree_add_uint(fh_tree, hf_sll_gretype, tvb, protocol_offset, 2, protocol); break; default: - proto_tree_add_uint(fh_tree, &hfi_sll_etype, tvb, + proto_tree_add_uint(fh_tree, hf_sll_etype, tvb, protocol_offset, 2, protocol); break; } @@ -408,7 +361,7 @@ dissect_payload(proto_tree *tree, packet_info *pinfo, proto_tree *fh_tree, ethertype_data.etype = protocol; ethertype_data.payload_offset = header_size; ethertype_data.fh_tree = fh_tree; - ethertype_data.trailer_id = hfi_sll_trailer.id; + ethertype_data.trailer_id = hf_sll_trailer; ethertype_data.fcs_len = 0; call_dissector_with_data(ethertype_handle, tvb, pinfo, tree, ðertype_data); @@ -499,7 +452,7 @@ dissect_sll_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int enca col_add_str(pinfo->cinfo, COL_INFO, val_to_str(pkttype, packet_type_vals, "Unknown (%u)")); - ti = proto_tree_add_protocol_format(tree, hfi_sll->id, tvb, 0, + ti = proto_tree_add_protocol_format(tree, proto_sll, tvb, 0, header_size, "Linux cooked capture v%d", version); fh_tree = proto_item_add_subtree(ti, ett_sll); tap_data = wmem_new0(wmem_file_scope(), sll_tap_data); @@ -507,9 +460,9 @@ dissect_sll_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int enca switch (encap) { case WTAP_ENCAP_SLL: - proto_tree_add_item(fh_tree, &hfi_sll_pkttype, tvb, 0, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(fh_tree, hf_sll_pkttype, tvb, 0, 2, ENC_BIG_ENDIAN); - proto_tree_add_uint(fh_tree, &hfi_sll_hatype, tvb, 2, 2, hatype); + proto_tree_add_uint(fh_tree, hf_sll_hatype, tvb, 2, 2, hatype); add_ll_address(fh_tree, pinfo, tvb, 4, 2, tap_data); @@ -521,11 +474,11 @@ dissect_sll_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int enca case WTAP_ENCAP_SLL2: protocol = add_protocol_type(fh_tree, tvb, 0, hatype); - proto_tree_add_item(fh_tree, &hfi_sll_ifindex, tvb, 4, 4, ENC_BIG_ENDIAN); + proto_tree_add_item(fh_tree, hf_sll_ifindex, tvb, 4, 4, ENC_BIG_ENDIAN); - proto_tree_add_uint(fh_tree, &hfi_sll_hatype, tvb, 8, 2, hatype); + proto_tree_add_uint(fh_tree, hf_sll_hatype, tvb, 8, 2, hatype); - proto_tree_add_item(fh_tree, &hfi_sll_pkttype, tvb, 10, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(fh_tree, hf_sll_pkttype, tvb, 10, 1, ENC_BIG_ENDIAN); add_ll_address(fh_tree, pinfo, tvb, 11, 1, tap_data); @@ -556,23 +509,68 @@ dissect_sll_v2(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _ void proto_register_sll(void) { -#ifndef HAVE_HFI_SECTION_INIT - static header_field_info *hfi[] = { - &hfi_sll_pkttype, - /* ARP hardware type? With Linux extensions? */ - &hfi_sll_hatype, - &hfi_sll_halen, - &hfi_sll_src_eth, - &hfi_sll_src_ipv4, - &hfi_sll_src_other, - &hfi_sll_unused, - &hfi_sll_ltype, - &hfi_sll_gretype, - &hfi_sll_etype, - &hfi_sll_trailer, - &hfi_sll_ifindex, + static hf_register_info hf[] = { + { &hf_sll_pkttype, + { "Packet type", "sll.pkttype", + FT_UINT16, BASE_DEC, VALS(packet_type_vals), 0x0, + NULL, HFILL } + }, + { &hf_sll_hatype, + { "Link-layer address type", "sll.hatype", + FT_UINT16, BASE_DEC, VALS(arp_hrd_vals), 0x0, + NULL, HFILL } + }, + { &hf_sll_halen, + { "Link-layer address length", "sll.halen", + FT_UINT16, BASE_DEC, NULL, 0x0, + NULL, HFILL } + }, + { &hf_sll_src_eth, + { "Source", "sll.src.eth", + FT_ETHER, BASE_NONE, NULL, 0x0, + "Source link-layer address", HFILL } + }, + { &hf_sll_src_ipv4, + { "Source", "sll.src.ipv4", + FT_IPv4, BASE_NONE, NULL, 0x0, + "Source link-layer address", HFILL } + }, + { &hf_sll_src_other, + { "Source", "sll.src.other", + FT_BYTES, BASE_NONE, NULL, 0x0, + "Source link-layer address", HFILL } + }, + { &hf_sll_unused, + { "Unused", "sll.unused", + FT_BYTES, BASE_NONE, NULL, 0x0, + "Unused bytes", HFILL } + }, + { &hf_sll_ltype, + { "Protocol", "sll.ltype", + FT_UINT16, BASE_HEX, VALS(ltype_vals), 0x0, + "Linux protocol type", HFILL } + }, + { &hf_sll_gretype, + { "Protocol", "sll.gretype", + FT_UINT16, BASE_HEX, VALS(gre_typevals), 0x0, + "GRE protocol type", HFILL } + }, + { &hf_sll_etype, + { "Protocol", "sll.etype", + FT_UINT16, BASE_HEX, VALS(etype_vals), 0x0, + "Ethernet protocol type", HFILL } + }, + { &hf_sll_trailer, + { "Trailer", "sll.trailer", + FT_BYTES, BASE_NONE, NULL, 0x0, + NULL, HFILL } + }, + { &hf_sll_ifindex, + { "Interface index", "sll.ifindex", + FT_UINT32, BASE_DEC, NULL, 0x0, + NULL, HFILL } + }, }; -#endif static gint *ett[] = { &ett_sll @@ -584,15 +582,12 @@ proto_register_sll(void) static decode_as_t sll_da = {"sll.ltype", "sll.ltype", 1, 0, &sll_da_values, NULL, NULL, decode_as_default_populate_list, decode_as_default_reset, decode_as_default_change, NULL}; - proto_sll = proto_register_protocol("Linux cooked-mode capture", - "SLL", "sll" ); - hfi_sll = proto_registrar_get_nth(proto_sll); - - proto_register_fields(proto_sll, hfi, array_length(hfi)); + proto_sll = proto_register_protocol("Linux cooked-mode capture", "SLL", "sll" ); + proto_register_field_array(proto_sll, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); - sll_handle = create_dissector_handle(dissect_sll_v1, proto_sll); - sll2_handle = create_dissector_handle(dissect_sll_v2, proto_sll); + sll_handle = register_dissector("sll_v1", dissect_sll_v1, proto_sll); + sll2_handle = register_dissector("sll_v2", dissect_sll_v2, proto_sll); sll_tap = register_tap("sll"); /* @@ -623,7 +618,7 @@ proto_register_sll(void) ); register_capture_dissector_table("sll.ltype", "Linux SLL protocol"); - register_conversation_table(proto_sll, TRUE, sll_conversation_packet, sll_hostlist_packet); + register_conversation_table(proto_sll, TRUE, sll_conversation_packet, sll_endpoint_packet); register_decode_as(&sll_da); } |