Adding upstream version 2.0.0+debian.upstream/2.0.0+debian

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 218 insertions, 0 deletions

diff --git a/src/dump_cds.h b/src/dump_cds.h
new file mode 100644
index 0000000..a972e59
--- /dev/null
+++ b/src/dump_cds.h
@@ -0,0 +1,218 @@
+/*
+ * Copyright (c) 2016-2021, OARC, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "dnscap_common.h"
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <stdio.h>
+
+#ifndef __dnscap_dump_cds_h
+#define __dnscap_dump_cds_h
+
+#define DUMP_CDS_OK 0
+#define DUMP_CDS_EINVAL 1
+#define DUMP_CDS_ENOMEM 2
+#define DUMP_CDS_ECBOR 3
+#define DUMP_CDS_ELDNS 4
+#define DUMP_CDS_EWRITE 5
+#define DUMP_CDS_FLUSH 6
+#define DUMP_CDS_ENOSUP 7
+#define DUMP_CDS_EBUF 8
+
+#define CDS_OPTION_RLABELS 0
+#define CDS_OPTION_RLABEL_MIN_SIZE 1
+#define CDS_OPTION_RDATA_RINDEX_SIZE 2
+#define CDS_OPTION_RDATA_RINDEX_MIN_SIZE 3
+#define CDS_OPTION_USE_RDATA_INDEX 4
+#define CDS_OPTION_RDATA_INDEX_MIN_SIZE 5
+
+#define CDS_DEFAULT_MAX_RLABELS 255
+#define CDS_DEFAULT_MIN_RLABEL_SIZE 3
+#define CDS_DEFAULT_RDATA_INDEX_MIN_SIZE 5
+#define CDS_DEFAULT_RDATA_RINDEX_SIZE 255
+#define CDS_DEFAULT_RDATA_RINDEX_MIN_SIZE 5
+
+typedef struct ip_header ip_header_t;
+struct ip_header {
+    unsigned short is_v6 : 1;
+    unsigned short is_reverse : 1;
+    unsigned short have_src_addr : 1;
+    unsigned short have_src_port : 1;
+    unsigned short have_dest_addr : 1;
+    unsigned short have_dest_port : 1;
+
+    uint8_t         bits;
+    struct in_addr  src_addr4;
+    uint16_t        src_port4;
+    struct in6_addr src_addr6;
+    uint16_t        src_port6;
+    struct in_addr  dest_addr4;
+    uint16_t        dest_port4;
+    struct in6_addr dest_addr6;
+    uint16_t        dest_port6;
+};
+
+typedef struct dns_label dns_label_t;
+struct dns_label {
+    unsigned short is_complete : 1;
+    unsigned short have_size : 1;
+    unsigned short have_extension_bits : 1;
+    unsigned short have_offset : 1;
+    unsigned short have_label : 1;
+    unsigned short have_n_offset : 1;
+
+    uint8_t  size;
+    uint8_t  extension_bits;
+    uint16_t offset;
+    uint8_t* offset_p;
+    uint8_t* label;
+    size_t   n_offset;
+};
+
+#define CDS_RLABEL_LABEL_T_LABEL 64
+
+typedef struct dns_rlabel_label dns_rlabel_label_t;
+struct dns_rlabel_label {
+    unsigned short have_n_offset : 1;
+
+    uint8_t size;
+    uint8_t label[CDS_RLABEL_LABEL_T_LABEL];
+    size_t  n_offset;
+};
+
+#define CDS_RLABEL_T_LABELS 256
+
+typedef struct dns_rlabel dns_rlabel_t;
+struct dns_rlabel {
+    dns_rlabel_t* next;
+    dns_rlabel_t* prev;
+
+    uint8_t            labels;
+    dns_rlabel_label_t label[CDS_RLABEL_T_LABELS];
+};
+
+typedef struct dns_rdata dns_rdata_t;
+struct dns_rdata {
+    unsigned short is_complete : 1;
+    unsigned short have_labels : 1;
+    unsigned short have_rlabel_idx : 1;
+    unsigned short have_rdata : 1;
+
+    size_t       rdata_len;
+    uint8_t*     rdata;
+    size_t       labels;
+    dns_label_t* label;
+    size_t       rlabel_idx;
+};
+
+typedef struct dns_rr dns_rr_t;
+struct dns_rr {
+    unsigned short is_complete : 1;
+    unsigned short have_labels : 1;
+    unsigned short have_rlabel_idx : 1;
+    unsigned short have_bits : 1;
+    unsigned short have_type : 1;
+    unsigned short have_class : 1;
+    unsigned short have_ttl : 1;
+    unsigned short have_rdlength : 1;
+    unsigned short have_rdata : 1;
+    unsigned short have_mixed_rdata : 1;
+    unsigned short have_rdata_index : 1;
+    unsigned short have_rdata_rindex : 1;
+
+    size_t       labels;
+    dns_label_t* label;
+    size_t       rlabel_idx;
+    uint8_t      bits;
+    uint16_t     type;
+    uint16_t class;
+    uint32_t     ttl;
+    uint16_t     rdlength;
+    uint8_t*     rdata;
+    size_t       mixed_rdatas;
+    dns_rdata_t* mixed_rdata;
+    size_t       rdata_index;
+    size_t       rdata_rindex;
+};
+
+typedef struct dns dns_t;
+struct dns {
+    unsigned short header_is_complete : 1;
+    unsigned short have_id : 1;
+    unsigned short have_raw : 1;
+    unsigned short have_cnt_bits : 1;
+    unsigned short have_qdcount : 1;
+    unsigned short have_ancount : 1;
+    unsigned short have_nscount : 1;
+    unsigned short have_arcount : 1;
+    unsigned short have_rr_bits : 1;
+    unsigned short have_questions : 1;
+    unsigned short have_answers : 1;
+    unsigned short have_authorities : 1;
+    unsigned short have_additionals : 1;
+
+    int       id;
+    uint16_t  raw;
+    uint8_t   cnt_bits;
+    uint16_t  qdcount;
+    uint16_t  ancount;
+    uint16_t  nscount;
+    uint16_t  arcount;
+    uint8_t   rr_bits;
+    size_t    questions;
+    dns_rr_t* question;
+    size_t    answers;
+    dns_rr_t* answer;
+    size_t    authorities;
+    dns_rr_t* authority;
+    size_t    additionals;
+    dns_rr_t* additional;
+};
+
+int cds_set_cbor_size(size_t size);
+int cds_set_message_size(size_t size);
+int cds_set_max_rlabels(size_t size);
+int cds_set_min_rlabel_size(size_t size);
+int cds_set_use_rdata_index(int use);
+int cds_set_use_rdata_rindex(int use);
+int cds_set_rdata_index_min_size(size_t size);
+int cds_set_rdata_rindex_min_size(size_t size);
+int cds_set_rdata_rindex_size(size_t size);
+int output_cds(iaddr from, iaddr to, uint8_t proto, unsigned flags, unsigned sport, unsigned dport, my_bpftimeval ts, const u_char* pkt_copy, size_t olen, const u_char* payload, size_t payloadlen);
+int dump_cds(FILE* fp);
+int have_cds_support();
+
+#endif /* __dnscap_dump_cds_h */