static void remove_old_requests(ipmi_packet_data_t * data, const nstime_t * curr_time) { wmem_list_frame_t * iter = wmem_list_head(data->request_list); while (iter) { ipmi_request_t * rq = (ipmi_request_t *) wmem_list_frame_data(iter); ipmi_frame_data_t * frame = get_frame_data(data, rq->frame_num); nstime_t delta; /* calculate time delta */ nstime_delta(&delta, curr_time, &frame->ts); if (nstime_to_msec(&delta) > response_after_req) { wmem_list_frame_t * del = iter; /* proceed to next request */ iter = wmem_list_frame_next(iter); /* free request data */ wmem_free(wmem_file_scope(), rq); /* remove list item */ wmem_list_remove_frame(data->request_list, del); } else { break; } } }
void DecodeAsDialog::on_decodeAsTreeWidget_itemActivated(QTreeWidgetItem *item, int column) { Q_UNUSED(column); GList *cur; table_names_combo_box_ = new QComboBox(); QString current_text = item->text(table_col_); QSet<QString> da_set; // If a packet is selected group its tables at the top in order // from last-dissected to first. for (cur = decode_as_list; cur; cur = cur->next) { decode_as_t *entry = (decode_as_t *) cur->data; const char *table_name = get_dissector_table_ui_name(entry->table_name); if (table_name) { da_set.insert(get_dissector_table_ui_name(entry->table_name)); } } if (cap_file_ && cap_file_->edt) { bool copying = !current_text.isEmpty(); wmem_list_frame_t * protos = wmem_list_head(cap_file_->edt->pi.layers); while (protos != NULL) { int proto_id = GPOINTER_TO_INT(wmem_list_frame_data(protos)); const gchar * proto_name = proto_get_protocol_filter_name(proto_id); for (cur = decode_as_list; cur; cur = cur->next) { decode_as_t *entry = (decode_as_t *) cur->data; if (g_strcmp0(proto_name, entry->name) == 0) { QString table_ui_name = get_dissector_table_ui_name(entry->table_name); table_names_combo_box_->insertItem(0, table_ui_name, entry->table_name); da_set.remove(table_ui_name); if (!copying) { current_text = table_ui_name; } } } protos = wmem_list_frame_next(protos); } } if (table_names_combo_box_->count() > 0) { table_names_combo_box_->insertSeparator(table_names_combo_box_->count()); } QList<QString> da_list = da_set.toList(); qSort(da_list.begin(), da_list.end()); foreach (QString table_ui_name, da_list) { table_names_combo_box_->addItem(table_ui_name, ui_name_to_name_[table_ui_name]); }
/* XXX - "packet comment" is passed into dissector as data, but currently doesn't have a use */ static int dissect_file_record(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void* data) { proto_item *volatile ti = NULL; guint cap_len = 0, frame_len = 0; proto_tree *volatile fh_tree = NULL; proto_tree *volatile tree; proto_item *item; const gchar *cap_plurality, *frame_plurality; const color_filter_t *color_filter; file_data_t *file_data = (file_data_t*)data; tree=parent_tree; pinfo->current_proto = "File"; /* if FILE is not referenced from any filters we don't need to worry about generating any tree items. */ if(!proto_field_is_referenced(tree, proto_file)) { tree=NULL; } else { /* Put in frame header information. */ cap_len = tvb_captured_length(tvb); frame_len = tvb_reported_length(tvb); cap_plurality = plurality(cap_len, "", "s"); frame_plurality = plurality(frame_len, "", "s"); ti = proto_tree_add_protocol_format(tree, proto_file, tvb, 0, -1, "File record %u: %u byte%s", pinfo->num, frame_len, frame_plurality); proto_item_append_text(ti, ", %u byte%s", cap_len, cap_plurality); fh_tree = proto_item_add_subtree(ti, ett_file); proto_tree_add_int(fh_tree, hf_file_ftap_encap, tvb, 0, 0, pinfo->pkt_encap); proto_tree_add_uint(fh_tree, hf_file_record_number, tvb, 0, 0, pinfo->num); proto_tree_add_uint_format(fh_tree, hf_file_record_len, tvb, 0, 0, frame_len, "Record Length: %u byte%s (%u bits)", frame_len, frame_plurality, frame_len * 8); ti = proto_tree_add_boolean(fh_tree, hf_file_marked, tvb, 0, 0,pinfo->fd->flags.marked); PROTO_ITEM_SET_GENERATED(ti); ti = proto_tree_add_boolean(fh_tree, hf_file_ignored, tvb, 0, 0,pinfo->fd->flags.ignored); PROTO_ITEM_SET_GENERATED(ti); if(pinfo->fd->pfd != 0){ proto_item *ppd_item; guint num_entries = g_slist_length(pinfo->fd->pfd); guint i; ppd_item = proto_tree_add_uint(fh_tree, hf_file_num_p_prot_data, tvb, 0, 0, num_entries); PROTO_ITEM_SET_GENERATED(ppd_item); for(i=0; i<num_entries; i++){ gchar* str = p_get_proto_name_and_key(wmem_file_scope(), pinfo, i); proto_tree_add_string_format(fh_tree, hf_file_proto_name_and_key, tvb, 0, 0, str, "%s", str); } } #if 0 if (show_file_off) { proto_tree_add_int64_format_value(fh_tree, hf_frame_file_off, tvb, 0, 0, pinfo->fd->file_off, "%" G_GINT64_MODIFIER "d (0x%" G_GINT64_MODIFIER "x)", pinfo->fd->file_off, pinfo->fd->file_off); } #endif } if (pinfo->fd->flags.ignored) { /* Ignored package, stop handling here */ col_set_str(pinfo->cinfo, COL_INFO, "<Ignored>"); proto_tree_add_boolean_format(tree, hf_file_ignored, tvb, 0, -1, TRUE, "This record is marked as ignored"); return tvb_captured_length(tvb); } /* Portable Exception Handling to trap Wireshark specific exceptions like BoundsError exceptions */ TRY { #ifdef _MSC_VER /* Win32: Visual-C Structured Exception Handling (SEH) to trap hardware exceptions like memory access violations. (a running debugger will be called before the except part below) */ /* Note: A Windows "exceptional exception" may leave the kazlib's (Portable Exception Handling) stack in an inconsistent state thus causing a crash at some point in the handling of the exception. See: https://www.wireshark.org/lists/wireshark-dev/200704/msg00243.html */ __try { #endif if (!dissector_try_uint(file_encap_dissector_table, pinfo->pkt_encap, tvb, pinfo, parent_tree)) { col_set_str(pinfo->cinfo, COL_PROTOCOL, "UNKNOWN"); col_add_fstr(pinfo->cinfo, COL_INFO, "FTAP_ENCAP = %d", pinfo->pkt_encap); call_data_dissector(tvb, pinfo, parent_tree); } #ifdef _MSC_VER } __except(EXCEPTION_EXECUTE_HANDLER /* handle all exceptions */) { switch(GetExceptionCode()) { case(STATUS_ACCESS_VIOLATION): show_exception(tvb, pinfo, parent_tree, DissectorError, "STATUS_ACCESS_VIOLATION: dissector accessed an invalid memory address"); break; case(STATUS_INTEGER_DIVIDE_BY_ZERO): show_exception(tvb, pinfo, parent_tree, DissectorError, "STATUS_INTEGER_DIVIDE_BY_ZERO: dissector tried an integer division by zero"); break; case(STATUS_STACK_OVERFLOW): show_exception(tvb, pinfo, parent_tree, DissectorError, "STATUS_STACK_OVERFLOW: dissector overflowed the stack (e.g. endless loop)"); /* XXX - this will have probably corrupted the stack, which makes problems later in the exception code */ break; /* XXX - add other hardware exception codes as required */ default: show_exception(tvb, pinfo, parent_tree, DissectorError, g_strdup_printf("dissector caused an unknown exception: 0x%x", GetExceptionCode())); } } #endif } CATCH_BOUNDS_AND_DISSECTOR_ERRORS { show_exception(tvb, pinfo, parent_tree, EXCEPT_CODE, GET_MESSAGE); } ENDTRY; if(proto_field_is_referenced(tree, hf_file_protocols)) { wmem_strbuf_t *val = wmem_strbuf_new(wmem_packet_scope(), ""); wmem_list_frame_t *frame; /* skip the first entry, it's always the "frame" protocol */ frame = wmem_list_frame_next(wmem_list_head(pinfo->layers)); if (frame) { wmem_strbuf_append(val, proto_get_protocol_filter_name(GPOINTER_TO_UINT(wmem_list_frame_data(frame)))); frame = wmem_list_frame_next(frame); } while (frame) { wmem_strbuf_append_c(val, ':'); wmem_strbuf_append(val, proto_get_protocol_filter_name(GPOINTER_TO_UINT(wmem_list_frame_data(frame)))); frame = wmem_list_frame_next(frame); } ti = proto_tree_add_string(fh_tree, hf_file_protocols, tvb, 0, 0, wmem_strbuf_get_str(val)); PROTO_ITEM_SET_GENERATED(ti); } /* Call postdissectors if we have any (while trying to avoid another * TRY/CATCH) */ if (have_postdissector()) { TRY { #ifdef _MSC_VER /* Win32: Visual-C Structured Exception Handling (SEH) to trap hardware exceptions like memory access violations */ /* (a running debugger will be called before the except part below) */ /* Note: A Windows "exceptional exception" may leave the kazlib's (Portable Exception Handling) stack in an inconsistent state thus causing a crash at some point in the handling of the exception. See: https://www.wireshark.org/lists/wireshark-dev/200704/msg00243.html */ __try { #endif call_all_postdissectors(tvb, pinfo, parent_tree); #ifdef _MSC_VER } __except(EXCEPTION_EXECUTE_HANDLER /* handle all exceptions */) { switch(GetExceptionCode()) { case(STATUS_ACCESS_VIOLATION): show_exception(tvb, pinfo, parent_tree, DissectorError, "STATUS_ACCESS_VIOLATION: dissector accessed an invalid memory address"); break; case(STATUS_INTEGER_DIVIDE_BY_ZERO): show_exception(tvb, pinfo, parent_tree, DissectorError, "STATUS_INTEGER_DIVIDE_BY_ZERO: dissector tried an integer division by zero"); break; case(STATUS_STACK_OVERFLOW): show_exception(tvb, pinfo, parent_tree, DissectorError, "STATUS_STACK_OVERFLOW: dissector overflowed the stack (e.g. endless loop)"); /* XXX - this will have probably corrupted the stack, which makes problems later in the exception code */ break; /* XXX - add other hardware exception codes as required */ default: show_exception(tvb, pinfo, parent_tree, DissectorError, g_strdup_printf("dissector caused an unknown exception: 0x%x", GetExceptionCode())); } } #endif } CATCH_BOUNDS_AND_DISSECTOR_ERRORS { show_exception(tvb, pinfo, parent_tree, EXCEPT_CODE, GET_MESSAGE); } ENDTRY; } /* Attempt to (re-)calculate color filters (if any). */ if (pinfo->fd->flags.need_colorize) { color_filter = color_filters_colorize_packet(file_data->color_edt); pinfo->fd->color_filter = color_filter; pinfo->fd->flags.need_colorize = 0; } else { color_filter = pinfo->fd->color_filter; } if (color_filter) { pinfo->fd->color_filter = color_filter; item = proto_tree_add_string(fh_tree, hf_file_color_filter_name, tvb, 0, 0, color_filter->filter_name); PROTO_ITEM_SET_GENERATED(item); item = proto_tree_add_string(fh_tree, hf_file_color_filter_text, tvb, 0, 0, color_filter->filter_text); PROTO_ITEM_SET_GENERATED(item); } tap_queue_packet(file_tap, pinfo, NULL); if (pinfo->frame_end_routines) { g_slist_foreach(pinfo->frame_end_routines, &call_file_record_end_routine, NULL); g_slist_free(pinfo->frame_end_routines); pinfo->frame_end_routines = NULL; } return tvb_captured_length(tvb); }
static void wmem_test_list(void) { wmem_allocator_t *allocator; wmem_list_t *list; wmem_list_frame_t *frame; unsigned int i; allocator = wmem_allocator_new(WMEM_ALLOCATOR_STRICT); list = wmem_list_new(allocator); g_assert(list); g_assert(wmem_list_count(list) == 0); frame = wmem_list_head(list); g_assert(frame == NULL); for (i=0; i<CONTAINER_ITERS; i++) { wmem_list_prepend(list, GINT_TO_POINTER(i)); g_assert(wmem_list_count(list) == i+1); frame = wmem_list_head(list); g_assert(frame); g_assert(wmem_list_frame_data(frame) == GINT_TO_POINTER(i)); } wmem_strict_check_canaries(allocator); i = CONTAINER_ITERS - 1; frame = wmem_list_head(list); while (frame) { g_assert(wmem_list_frame_data(frame) == GINT_TO_POINTER(i)); i--; frame = wmem_list_frame_next(frame); } i = 0; frame = wmem_list_tail(list); while (frame) { g_assert(wmem_list_frame_data(frame) == GINT_TO_POINTER(i)); i++; frame = wmem_list_frame_prev(frame); } i = CONTAINER_ITERS - 2; while (wmem_list_count(list) > 1) { wmem_list_remove(list, GINT_TO_POINTER(i)); i--; } wmem_list_remove(list, GINT_TO_POINTER(CONTAINER_ITERS - 1)); g_assert(wmem_list_count(list) == 0); g_assert(wmem_list_head(list) == NULL); g_assert(wmem_list_tail(list) == NULL); for (i=0; i<CONTAINER_ITERS; i++) { wmem_list_append(list, GINT_TO_POINTER(i)); g_assert(wmem_list_count(list) == i+1); frame = wmem_list_head(list); g_assert(frame); } wmem_strict_check_canaries(allocator); i = 0; frame = wmem_list_head(list); while (frame) { g_assert(wmem_list_frame_data(frame) == GINT_TO_POINTER(i)); i++; frame = wmem_list_frame_next(frame); } i = CONTAINER_ITERS - 1; frame = wmem_list_tail(list); while (frame) { g_assert(wmem_list_frame_data(frame) == GINT_TO_POINTER(i)); i--; frame = wmem_list_frame_prev(frame); } wmem_destroy_allocator(allocator); list = wmem_list_new(NULL); for (i=0; i<CONTAINER_ITERS; i++) { wmem_list_prepend(list, GINT_TO_POINTER(i)); } g_assert(wmem_list_count(list) == CONTAINER_ITERS); wmem_destroy_list(list); }
/* heuristic failed. Print remaining bytes as flat payload */ proto_tree_add_item(tree, hf_hpfeeds_payload, tvb, offset, -1, ENC_NA); } static void hpfeeds_stats_tree_init(stats_tree* st) { st_node_channels_payload = stats_tree_create_node(st, st_str_channels_payload, 0, TRUE); st_node_opcodes = stats_tree_create_pivot(st, st_str_opcodes, 0); channels_list = wmem_list_new(wmem_epan_scope()); } static int hpfeeds_stats_tree_packet(stats_tree* st _U_, packet_info* pinfo _U_, epan_dissect_t* edt _U_, const void* p) { struct HpfeedsTap *pi = (struct HpfeedsTap *)p; wmem_list_frame_t* head = wmem_list_head(channels_list); wmem_list_frame_t* cur = head; struct channel_node* ch_node; if (pi->opcode == OP_PUBLISH) { /* search an existing channel node and create it if it does not */ while(cur != NULL) { ch_node = (struct channel_node*)wmem_list_frame_data(cur); if (strncmp(ch_node->channel, pi->channel, strlen(pi->channel)) == 0) { break; } cur = wmem_list_frame_next(cur); } if (cur == NULL) { ch_node = (struct channel_node*)wmem_alloc0(wmem_file_scope(), sizeof(struct channel_node));
static void dissect_frame(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree) { proto_item *volatile ti = NULL, *comment_item; guint cap_len = 0, frame_len = 0; proto_tree *volatile tree; proto_tree *comments_tree; proto_item *item; const gchar *cap_plurality, *frame_plurality; tree=parent_tree; switch (pinfo->phdr->rec_type) { case REC_TYPE_PACKET: pinfo->current_proto = "Frame"; if (pinfo->pseudo_header != NULL) { switch (pinfo->fd->lnk_t) { case WTAP_ENCAP_WFLEET_HDLC: case WTAP_ENCAP_CHDLC_WITH_PHDR: case WTAP_ENCAP_PPP_WITH_PHDR: case WTAP_ENCAP_SDLC: case WTAP_ENCAP_BLUETOOTH_H4_WITH_PHDR: pinfo->p2p_dir = pinfo->pseudo_header->p2p.sent ? P2P_DIR_SENT : P2P_DIR_RECV; break; case WTAP_ENCAP_BLUETOOTH_HCI: pinfo->p2p_dir = pinfo->pseudo_header->bthci.sent; break; case WTAP_ENCAP_LAPB: case WTAP_ENCAP_FRELAY_WITH_PHDR: pinfo->p2p_dir = (pinfo->pseudo_header->x25.flags & FROM_DCE) ? P2P_DIR_RECV : P2P_DIR_SENT; break; case WTAP_ENCAP_ISDN: case WTAP_ENCAP_V5_EF: case WTAP_ENCAP_DPNSS: case WTAP_ENCAP_BACNET_MS_TP_WITH_PHDR: pinfo->p2p_dir = pinfo->pseudo_header->isdn.uton ? P2P_DIR_SENT : P2P_DIR_RECV; break; case WTAP_ENCAP_LINUX_LAPD: pinfo->p2p_dir = (pinfo->pseudo_header->lapd.pkttype == 3 || pinfo->pseudo_header->lapd.pkttype == 4) ? P2P_DIR_SENT : P2P_DIR_RECV; break; case WTAP_ENCAP_MTP2_WITH_PHDR: pinfo->p2p_dir = pinfo->pseudo_header->mtp2.sent ? P2P_DIR_SENT : P2P_DIR_RECV; pinfo->link_number = pinfo->pseudo_header->mtp2.link_number; pinfo->annex_a_used = pinfo->pseudo_header->mtp2.annex_a_used; break; case WTAP_ENCAP_GSM_UM: pinfo->p2p_dir = pinfo->pseudo_header->gsm_um.uplink ? P2P_DIR_SENT : P2P_DIR_RECV; break; } } break; case REC_TYPE_FT_SPECIFIC_EVENT: pinfo->current_proto = "Event"; break; case REC_TYPE_FT_SPECIFIC_REPORT: pinfo->current_proto = "Report"; break; default: g_assert_not_reached(); break; } if(pinfo->pkt_comment){ item = proto_tree_add_item(tree, proto_pkt_comment, tvb, 0, 0, ENC_NA); comments_tree = proto_item_add_subtree(item, ett_comments); comment_item = proto_tree_add_string_format(comments_tree, hf_comments_text, tvb, 0, 0, pinfo->pkt_comment, "%s", pinfo->pkt_comment); expert_add_info_format(pinfo, comment_item, &ei_comments_text, "%s", pinfo->pkt_comment); } /* if FRAME is not referenced from any filters we don't need to worry about generating any tree items. */ if(!proto_field_is_referenced(tree, proto_frame)) { tree=NULL; if(pinfo->fd->flags.has_ts) { if(pinfo->fd->abs_ts.nsecs < 0 || pinfo->fd->abs_ts.nsecs >= 1000000000) expert_add_info(pinfo, NULL, &ei_arrive_time_out_of_range); } } else { proto_tree *fh_tree; gboolean old_visible; /* Put in frame header information. */ cap_len = tvb_length(tvb); frame_len = tvb_reported_length(tvb); cap_plurality = plurality(cap_len, "", "s"); frame_plurality = plurality(frame_len, "", "s"); ti = proto_tree_add_protocol_format(tree, proto_frame, tvb, 0, tvb_captured_length(tvb), "Frame %u: %u byte%s on wire", pinfo->fd->num, frame_len, frame_plurality); if (generate_bits_field) proto_item_append_text(ti, " (%u bits)", frame_len * 8); proto_item_append_text(ti, ", %u byte%s captured", cap_len, cap_plurality); if (generate_bits_field) { proto_item_append_text(ti, " (%u bits)", cap_len * 8); } if (pinfo->phdr->presence_flags & WTAP_HAS_INTERFACE_ID) { proto_item_append_text(ti, " on interface %u", pinfo->phdr->interface_id); } if (pinfo->phdr->presence_flags & WTAP_HAS_PACK_FLAGS) { if (pinfo->phdr->pack_flags & 0x00000001) { proto_item_append_text(ti, " (inbound)"); pinfo->p2p_dir = P2P_DIR_RECV; } if (pinfo->phdr->pack_flags & 0x00000002) { proto_item_append_text(ti, " (outbound)"); pinfo->p2p_dir = P2P_DIR_SENT; } } fh_tree = proto_item_add_subtree(ti, ett_frame); if (pinfo->phdr->presence_flags & WTAP_HAS_INTERFACE_ID && proto_field_is_referenced(tree, hf_frame_interface_id)) { const char *interface_name = epan_get_interface_name(pinfo->epan, pinfo->phdr->interface_id); if (interface_name) proto_tree_add_uint_format_value(fh_tree, hf_frame_interface_id, tvb, 0, 0, pinfo->phdr->interface_id, "%u (%s)", pinfo->phdr->interface_id, interface_name); else proto_tree_add_uint(fh_tree, hf_frame_interface_id, tvb, 0, 0, pinfo->phdr->interface_id); } if (pinfo->phdr->presence_flags & WTAP_HAS_PACK_FLAGS) { proto_tree *flags_tree; proto_item *flags_item; flags_item = proto_tree_add_uint(fh_tree, hf_frame_pack_flags, tvb, 0, 0, pinfo->phdr->pack_flags); flags_tree = proto_item_add_subtree(flags_item, ett_flags); proto_tree_add_uint(flags_tree, hf_frame_pack_direction, tvb, 0, 0, pinfo->phdr->pack_flags); proto_tree_add_uint(flags_tree, hf_frame_pack_reception_type, tvb, 0, 0, pinfo->phdr->pack_flags); proto_tree_add_uint(flags_tree, hf_frame_pack_fcs_length, tvb, 0, 0, pinfo->phdr->pack_flags); proto_tree_add_uint(flags_tree, hf_frame_pack_reserved, tvb, 0, 0, pinfo->phdr->pack_flags); proto_tree_add_boolean(flags_tree, hf_frame_pack_crc_error, tvb, 0, 0, pinfo->phdr->pack_flags); proto_tree_add_boolean(flags_tree, hf_frame_pack_wrong_packet_too_long_error, tvb, 0, 0, pinfo->phdr->pack_flags); proto_tree_add_boolean(flags_tree, hf_frame_pack_wrong_packet_too_short_error, tvb, 0, 0, pinfo->phdr->pack_flags); proto_tree_add_boolean(flags_tree, hf_frame_pack_wrong_inter_frame_gap_error, tvb, 0, 0, pinfo->phdr->pack_flags); proto_tree_add_boolean(flags_tree, hf_frame_pack_unaligned_frame_error, tvb, 0, 0, pinfo->phdr->pack_flags); proto_tree_add_boolean(flags_tree, hf_frame_pack_start_frame_delimiter_error, tvb, 0, 0, pinfo->phdr->pack_flags); proto_tree_add_boolean(flags_tree, hf_frame_pack_preamble_error, tvb, 0, 0, pinfo->phdr->pack_flags); proto_tree_add_boolean(flags_tree, hf_frame_pack_symbol_error, tvb, 0, 0, pinfo->phdr->pack_flags); } if (pinfo->phdr->rec_type == REC_TYPE_PACKET) proto_tree_add_int(fh_tree, hf_frame_wtap_encap, tvb, 0, 0, pinfo->fd->lnk_t); if (pinfo->fd->flags.has_ts) { proto_tree_add_time(fh_tree, hf_frame_arrival_time, tvb, 0, 0, &(pinfo->fd->abs_ts)); if(pinfo->fd->abs_ts.nsecs < 0 || pinfo->fd->abs_ts.nsecs >= 1000000000) { expert_add_info_format(pinfo, ti, &ei_arrive_time_out_of_range, "Arrival Time: Fractional second %09ld is invalid," " the valid range is 0-1000000000", (long) pinfo->fd->abs_ts.nsecs); } item = proto_tree_add_time(fh_tree, hf_frame_shift_offset, tvb, 0, 0, &(pinfo->fd->shift_offset)); PROTO_ITEM_SET_GENERATED(item); if(generate_epoch_time) { proto_tree_add_time(fh_tree, hf_frame_arrival_time_epoch, tvb, 0, 0, &(pinfo->fd->abs_ts)); } if (proto_field_is_referenced(tree, hf_frame_time_delta)) { nstime_t del_cap_ts; frame_delta_abs_time(pinfo->epan, pinfo->fd, pinfo->fd->num - 1, &del_cap_ts); item = proto_tree_add_time(fh_tree, hf_frame_time_delta, tvb, 0, 0, &(del_cap_ts)); PROTO_ITEM_SET_GENERATED(item); } if (proto_field_is_referenced(tree, hf_frame_time_delta_displayed)) { nstime_t del_dis_ts; frame_delta_abs_time(pinfo->epan, pinfo->fd, pinfo->fd->prev_dis_num, &del_dis_ts); item = proto_tree_add_time(fh_tree, hf_frame_time_delta_displayed, tvb, 0, 0, &(del_dis_ts)); PROTO_ITEM_SET_GENERATED(item); } item = proto_tree_add_time(fh_tree, hf_frame_time_relative, tvb, 0, 0, &(pinfo->rel_ts)); PROTO_ITEM_SET_GENERATED(item); if(pinfo->fd->flags.ref_time){ ti = proto_tree_add_item(fh_tree, hf_frame_time_reference, tvb, 0, 0, ENC_NA); PROTO_ITEM_SET_GENERATED(ti); } } proto_tree_add_uint(fh_tree, hf_frame_number, tvb, 0, 0, pinfo->fd->num); proto_tree_add_uint_format(fh_tree, hf_frame_len, tvb, 0, 0, frame_len, "Frame Length: %u byte%s (%u bits)", frame_len, frame_plurality, frame_len * 8); proto_tree_add_uint_format(fh_tree, hf_frame_capture_len, tvb, 0, 0, cap_len, "Capture Length: %u byte%s (%u bits)", cap_len, cap_plurality, cap_len * 8); if (generate_md5_hash) { const guint8 *cp; md5_state_t md_ctx; md5_byte_t digest[16]; const gchar *digest_string; cp = tvb_get_ptr(tvb, 0, cap_len); md5_init(&md_ctx); md5_append(&md_ctx, cp, cap_len); md5_finish(&md_ctx, digest); digest_string = bytestring_to_str(wmem_packet_scope(), digest, 16, '\0'); ti = proto_tree_add_string(fh_tree, hf_frame_md5_hash, tvb, 0, 0, digest_string); PROTO_ITEM_SET_GENERATED(ti); } ti = proto_tree_add_boolean(fh_tree, hf_frame_marked, tvb, 0, 0,pinfo->fd->flags.marked); PROTO_ITEM_SET_GENERATED(ti); ti = proto_tree_add_boolean(fh_tree, hf_frame_ignored, tvb, 0, 0,pinfo->fd->flags.ignored); PROTO_ITEM_SET_GENERATED(ti); if(proto_field_is_referenced(tree, hf_frame_protocols)) { /* we are going to be using proto_item_append_string() on * hf_frame_protocols, and we must therefore disable the * TRY_TO_FAKE_THIS_ITEM() optimisation for the tree by * setting it as visible. * * See proto.h for details. */ old_visible = proto_tree_set_visible(fh_tree, TRUE); ti = proto_tree_add_string(fh_tree, hf_frame_protocols, tvb, 0, 0, ""); PROTO_ITEM_SET_GENERATED(ti); proto_tree_set_visible(fh_tree, old_visible); } /* Check for existences of P2P pseudo header */ if (pinfo->p2p_dir != P2P_DIR_UNKNOWN) { proto_tree_add_int(fh_tree, hf_frame_p2p_dir, tvb, 0, 0, pinfo->p2p_dir); } /* Check for existences of MTP2 link number */ if ((pinfo->pseudo_header != NULL ) && (pinfo->fd->lnk_t == WTAP_ENCAP_MTP2_WITH_PHDR)) { proto_tree_add_uint(fh_tree, hf_link_number, tvb, 0, 0, pinfo->link_number); } if (show_file_off) { proto_tree_add_int64_format_value(fh_tree, hf_frame_file_off, tvb, 0, 0, pinfo->fd->file_off, "%" G_GINT64_MODIFIER "d (0x%" G_GINT64_MODIFIER "x)", pinfo->fd->file_off, pinfo->fd->file_off); } if(pinfo->fd->color_filter != NULL) { const color_filter_t *color_filter = (const color_filter_t *)pinfo->fd->color_filter; item = proto_tree_add_string(fh_tree, hf_frame_color_filter_name, tvb, 0, 0, color_filter->filter_name); PROTO_ITEM_SET_GENERATED(item); item = proto_tree_add_string(fh_tree, hf_frame_color_filter_text, tvb, 0, 0, color_filter->filter_text); PROTO_ITEM_SET_GENERATED(item); } } if (pinfo->fd->flags.ignored) { /* Ignored package, stop handling here */ col_set_str(pinfo->cinfo, COL_INFO, "<Ignored>"); proto_tree_add_text (tree, tvb, 0, 0, "This frame is marked as ignored"); return; } /* Portable Exception Handling to trap Wireshark specific exceptions like BoundsError exceptions */ TRY { #ifdef _MSC_VER /* Win32: Visual-C Structured Exception Handling (SEH) to trap hardware exceptions like memory access violations. (a running debugger will be called before the except part below) */ /* Note: A Windows "exceptional exception" may leave the kazlib's (Portable Exception Handling) stack in an inconsistent state thus causing a crash at some point in the handling of the exception. See: https://www.wireshark.org/lists/wireshark-dev/200704/msg00243.html */ __try { #endif switch (pinfo->phdr->rec_type) { case REC_TYPE_PACKET: if ((force_docsis_encap) && (docsis_handle)) { call_dissector(docsis_handle, tvb, pinfo, parent_tree); } else { if (!dissector_try_uint(wtap_encap_dissector_table, pinfo->fd->lnk_t, tvb, pinfo, parent_tree)) { col_set_str(pinfo->cinfo, COL_PROTOCOL, "UNKNOWN"); col_add_fstr(pinfo->cinfo, COL_INFO, "WTAP_ENCAP = %d", pinfo->fd->lnk_t); call_dissector(data_handle,tvb, pinfo, parent_tree); } } break; case REC_TYPE_FT_SPECIFIC_EVENT: case REC_TYPE_FT_SPECIFIC_REPORT: if (!dissector_try_uint(wtap_fts_rec_dissector_table, pinfo->file_type_subtype, tvb, pinfo, parent_tree)) { col_set_str(pinfo->cinfo, COL_PROTOCOL, "UNKNOWN"); col_add_fstr(pinfo->cinfo, COL_INFO, "WTAP_ENCAP = %d", pinfo->file_type_subtype); call_dissector(data_handle,tvb, pinfo, parent_tree); } break; } #ifdef _MSC_VER } __except(EXCEPTION_EXECUTE_HANDLER /* handle all exceptions */) { switch(GetExceptionCode()) { case(STATUS_ACCESS_VIOLATION): show_exception(tvb, pinfo, parent_tree, DissectorError, "STATUS_ACCESS_VIOLATION: dissector accessed an invalid memory address"); break; case(STATUS_INTEGER_DIVIDE_BY_ZERO): show_exception(tvb, pinfo, parent_tree, DissectorError, "STATUS_INTEGER_DIVIDE_BY_ZERO: dissector tried an integer division by zero"); break; case(STATUS_STACK_OVERFLOW): show_exception(tvb, pinfo, parent_tree, DissectorError, "STATUS_STACK_OVERFLOW: dissector overflowed the stack (e.g. endless loop)"); /* XXX - this will have probably corrupted the stack, which makes problems later in the exception code */ break; /* XXX - add other hardware exception codes as required */ default: show_exception(tvb, pinfo, parent_tree, DissectorError, g_strdup_printf("dissector caused an unknown exception: 0x%x", GetExceptionCode())); } } #endif } CATCH_BOUNDS_AND_DISSECTOR_ERRORS { show_exception(tvb, pinfo, parent_tree, EXCEPT_CODE, GET_MESSAGE); } ENDTRY; if(proto_field_is_referenced(tree, hf_frame_protocols)) { wmem_strbuf_t *val = wmem_strbuf_sized_new(wmem_packet_scope(), 128, 0); wmem_list_frame_t *frame; /* skip the first entry, it's always the "frame" protocol */ frame = wmem_list_frame_next(wmem_list_head(pinfo->layers)); if (frame) { wmem_strbuf_append(val, proto_get_protocol_filter_name(GPOINTER_TO_UINT(wmem_list_frame_data(frame)))); frame = wmem_list_frame_next(frame); } while (frame) { wmem_strbuf_append_c(val, ':'); wmem_strbuf_append(val, proto_get_protocol_filter_name(GPOINTER_TO_UINT(wmem_list_frame_data(frame)))); frame = wmem_list_frame_next(frame); } proto_item_append_string(ti, wmem_strbuf_get_str(val)); } /* Call postdissectors if we have any (while trying to avoid another * TRY/CATCH) */ if (have_postdissector()) { TRY { #ifdef _MSC_VER /* Win32: Visual-C Structured Exception Handling (SEH) to trap hardware exceptions like memory access violations */ /* (a running debugger will be called before the except part below) */ /* Note: A Windows "exceptional exception" may leave the kazlib's (Portable Exception Handling) stack in an inconsistent state thus causing a crash at some point in the handling of the exception. See: https://www.wireshark.org/lists/wireshark-dev/200704/msg00243.html */ __try { #endif call_all_postdissectors(tvb, pinfo, parent_tree); #ifdef _MSC_VER } __except(EXCEPTION_EXECUTE_HANDLER /* handle all exceptions */) { switch(GetExceptionCode()) { case(STATUS_ACCESS_VIOLATION): show_exception(tvb, pinfo, parent_tree, DissectorError, "STATUS_ACCESS_VIOLATION: dissector accessed an invalid memory address"); break; case(STATUS_INTEGER_DIVIDE_BY_ZERO): show_exception(tvb, pinfo, parent_tree, DissectorError, "STATUS_INTEGER_DIVIDE_BY_ZERO: dissector tried an integer division by zero"); break; case(STATUS_STACK_OVERFLOW): show_exception(tvb, pinfo, parent_tree, DissectorError, "STATUS_STACK_OVERFLOW: dissector overflowed the stack (e.g. endless loop)"); /* XXX - this will have probably corrupted the stack, which makes problems later in the exception code */ break; /* XXX - add other hardware exception codes as required */ default: show_exception(tvb, pinfo, parent_tree, DissectorError, g_strdup_printf("dissector caused an unknown exception: 0x%x", GetExceptionCode())); } } #endif } CATCH_BOUNDS_AND_DISSECTOR_ERRORS { show_exception(tvb, pinfo, parent_tree, EXCEPT_CODE, GET_MESSAGE); } ENDTRY; } tap_queue_packet(frame_tap, pinfo, NULL); if (pinfo->frame_end_routines) { g_slist_foreach(pinfo->frame_end_routines, &call_frame_end_routine, NULL); g_slist_free(pinfo->frame_end_routines); pinfo->frame_end_routines = NULL; } }
static ipmi_request_t * get_matched_request(ipmi_packet_data_t * data, const ipmi_header_t * rs_hdr, guint flags) { wmem_list_frame_t * iter = wmem_list_head(data->request_list); ipmi_header_t rq_hdr; /* reset message context */ rq_hdr.context = 0; /* copy channel */ rq_hdr.channel = data->curr_channel; /* toggle packet direction */ rq_hdr.dir = rs_hdr->dir ^ 1; rq_hdr.session = rs_hdr->session; /* swap responder address/lun */ rq_hdr.rs_sa = rs_hdr->rq_sa; rq_hdr.rs_lun = rs_hdr->rq_lun; /* remove reply flag */ rq_hdr.netfn = rs_hdr->netfn & ~1; /* swap requester address/lun */ rq_hdr.rq_sa = rs_hdr->rs_sa; rq_hdr.rq_lun = rs_hdr->rs_lun; /* copy sequence */ rq_hdr.rq_seq = rs_hdr->rq_seq; /* copy command */ rq_hdr.cmd = rs_hdr->cmd; /* TODO: copy prefix bytes */ #ifdef DEBUG fprintf(stderr, "%d, %d: rq_hdr : {\n" "\tchannel=%d\n" "\tdir=%d\n" "\trs_sa=%x\n" "\trs_lun=%d\n" "\tnetfn=%x\n" "\trq_sa=%x\n" "\trq_lun=%d\n" "\trq_seq=%x\n" "\tcmd=%x\n}\n", data->curr_frame_num, data->curr_level, rq_hdr.channel, rq_hdr.dir, rq_hdr.rs_sa, rq_hdr.rs_lun, rq_hdr.netfn, rq_hdr.rq_sa, rq_hdr.rq_lun, rq_hdr.rq_seq, rq_hdr.cmd); #endif while (iter) { ipmi_request_t * rq = (ipmi_request_t *) wmem_list_frame_data(iter); /* check if in Get Message context */ if (rs_hdr->context == IPMI_E_GETMSG && !(flags & IPMI_D_TRG_SA)) { /* diregard rsSA */ rq_hdr.rq_sa = rq->hdr.rq_sa; } /* compare command headers */ if (!memcmp(&rq_hdr, &rq->hdr, sizeof(rq_hdr))) { return rq; } /* proceed to next request */ iter = wmem_list_frame_next(iter); } return NULL; }
/* This will build a display filter text that will only pass the packets related to the stream. There is a chance that two streams could intersect, but not a very good one */ gchar* build_follow_conv_filter( packet_info *pi ) { char* buf; int len; conversation_t *conv=NULL; struct tcp_analysis *tcpd; wmem_list_frame_t* protos; int proto_id; const char* proto_name; gboolean is_tcp = FALSE, is_udp = FALSE; protos = wmem_list_head(pi->layers); /* walk the list of a available protocols in the packet to figure out if any of them affect context sensitivity */ while (protos != NULL) { proto_id = GPOINTER_TO_INT(wmem_list_frame_data(protos)); proto_name = proto_get_protocol_filter_name(proto_id); if (!strcmp(proto_name, "tcp")) { is_tcp = TRUE; } else if (!strcmp(proto_name, "udp")) { is_udp = TRUE; } protos = wmem_list_frame_next(protos); } if( ((pi->net_src.type == AT_IPv4 && pi->net_dst.type == AT_IPv4) || (pi->net_src.type == AT_IPv6 && pi->net_dst.type == AT_IPv6)) && is_tcp && (conv=find_conversation(pi->fd->num, &pi->src, &pi->dst, pi->ptype, pi->srcport, pi->destport, 0)) != NULL ) { /* TCP over IPv4 */ tcpd=get_tcp_conversation_data(conv, pi); if (tcpd) { buf = g_strdup_printf("tcp.stream eq %d", tcpd->stream); tcp_stream_to_follow = tcpd->stream; if (pi->net_src.type == AT_IPv4) { len = 4; is_ipv6 = FALSE; } else { len = 16; is_ipv6 = TRUE; } } else { return NULL; } } else if( pi->net_src.type == AT_IPv4 && pi->net_dst.type == AT_IPv4 && is_udp ) { /* UDP over IPv4 */ buf = g_strdup_printf( "(ip.addr eq %s and ip.addr eq %s) and (udp.port eq %d and udp.port eq %d)", ip_to_str((const guint8 *)pi->net_src.data), ip_to_str((const guint8 *)pi->net_dst.data), pi->srcport, pi->destport ); len = 4; is_ipv6 = FALSE; } else if( pi->net_src.type == AT_IPv6 && pi->net_dst.type == AT_IPv6 && is_udp ) { /* UDP over IPv6 */ buf = g_strdup_printf( "(ipv6.addr eq %s and ipv6.addr eq %s) and (udp.port eq %d and udp.port eq %d)", ip6_to_str((const struct e_in6_addr *)pi->net_src.data), ip6_to_str((const struct e_in6_addr *)pi->net_dst.data), pi->srcport, pi->destport ); len = 16; is_ipv6 = TRUE; } else { return NULL; } memcpy(ip_address[0], pi->net_src.data, len); memcpy(ip_address[1], pi->net_dst.data, len); port[0] = pi->srcport; port[1] = pi->destport; return buf; }