git.openwrt.org Git - openwrt/staging/blocktrron.git/blob

   1 From 6f7812d97bc8f87004c0a5069c6c94c64af78106 Mon Sep 17 00:00:00 2001
   2 From: Simon Kelley <simon@thekelleys.org.uk>
   3 Date: Tue, 23 Oct 2018 23:54:44 +0100
   4 Subject: [PATCH 06/11] Fix spurious AD flags in some DNS replies from local
   5  config.
   6
   7 Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
   8 ---
   9  src/rfc1035.c | 42 ++++++++++++++++++++++++------------------
  10  1 file changed, 24 insertions(+), 18 deletions(-)
  11
  12 --- a/src/rfc1035.c
  13 +++ b/src/rfc1035.c
  14 @@ -1330,7 +1330,7 @@ size_t answer_request(struct dns_header
  15             {
  16               if (t->class == qclass && hostname_isequal(name, t->name))
  17                 {
  18 -                 ans = 1;
  19 +                 ans = 1, sec_data = 0;
  20                   if (!dryrun)
  21                     {
  22                       unsigned long ttl = daemon->local_ttl;
  23 @@ -1370,7 +1370,7 @@ size_t answer_request(struct dns_header
  24                        addr.addr.rcode.rcode = NOTIMP;
  25                        log_query(F_CONFIG | F_RCODE, name, &addr, NULL);
  26                     }
  27 -                 ans = 1;
  28 +                 ans = 1, sec_data = 0;
  29                 }
  30             }
  31         }
  32 @@ -1725,7 +1725,7 @@ size_t answer_request(struct dns_header
  33                 }
  34               else if (is_name_synthetic(flag, name, &addr))
  35                 {
  36 -                 ans = 1;
  37 +                 ans = 1, sec_data = 0;
  38                   if (!dryrun)
  39                     {
  40                       log_query(F_FORWARD | F_CONFIG | flag, name, &addr, NULL);
  41 @@ -1763,25 +1763,27 @@ size_t answer_request(struct dns_header
  42               for (rec = daemon->mxnames; rec; rec = rec->next)
  43                 if (!rec->issrv && hostname_isequal(name, rec->name))
  44                   {
  45 -                 ans = found = 1;
  46 -                 if (!dryrun)
  47 -                   {
  48 -                     int offset;
  49 -                     log_query(F_CONFIG | F_RRNAME, name, NULL, "<MX>");
  50 -                     if (add_resource_record(header, limit, &trunc, nameoffset, &ansp, daemon->local_ttl,
  51 -                                             &offset, T_MX, C_IN, "sd", rec->weight, rec->target))
  52 -                       {
  53 -                         anscount++;
  54 -                         if (rec->target)
  55 -                           rec->offset = offset;
  56 -                       }
  57 -                   }
  58 +                   ans = found = 1;
  59 +                   sec_data = 0;
  60 +                   if (!dryrun)
  61 +                     {
  62 +                       int offset;
  63 +                       log_query(F_CONFIG | F_RRNAME, name, NULL, "<MX>");
  64 +                       if (add_resource_record(header, limit, &trunc, nameoffset, &ansp, daemon->local_ttl,
  65 +                                               &offset, T_MX, C_IN, "sd", rec->weight, rec->target))
  66 +                         {
  67 +                           anscount++;
  68 +                           if (rec->target)
  69 +                             rec->offset = offset;
  70 +                         }
  71 +                     }
  72                   }
  73
  74               if (!found && (option_bool(OPT_SELFMX) || option_bool(OPT_LOCALMX)) &&
  75                   cache_find_by_name(NULL, name, now, F_HOSTS | F_DHCP | F_NO_RR))
  76                 {
  77                   ans = 1;
  78 +                 sec_data = 0;
  79                   if (!dryrun)
  80                     {
  81                       log_query(F_CONFIG | F_RRNAME, name, NULL, "<MX>");
  82 @@ -1802,6 +1804,7 @@ size_t answer_request(struct dns_header
  83                 if (rec->issrv && hostname_isequal(name, rec->name))
  84                   {
  85                     found = ans = 1;
  86 +                   sec_data = 0;
  87                     if (!dryrun)
  88                       {
  89                         int offset;
  90 @@ -1838,6 +1841,7 @@ size_t answer_request(struct dns_header
  91               if (!found && option_bool(OPT_FILTER) && (qtype == T_SRV || (qtype == T_ANY && strchr(name, '_'))))
  92                 {
  93                   ans = 1;
  94 +                 sec_data = 0;
  95                   if (!dryrun)
  96                     log_query(F_CONFIG | F_NEG, name, NULL, NULL);
  97                 }
  98 @@ -1850,6 +1854,7 @@ size_t answer_request(struct dns_header
  99                 if (hostname_isequal(name, na->name))
 100                   {
 101                     ans = 1;
 102 +                   sec_data = 0;
 103                     if (!dryrun)
 104                       {
 105                         log_query(F_CONFIG | F_RRNAME, name, NULL, "<NAPTR>");
 106 @@ -1862,11 +1867,12 @@ size_t answer_request(struct dns_header
 107             }
 108
 109           if (qtype == T_MAILB)
 110 -           ans = 1, nxdomain = 1;
 111 +           ans = 1, nxdomain = 1, sec_data = 0;
 112
 113           if (qtype == T_SOA && option_bool(OPT_FILTER))
 114             {
 115 -             ans = 1;
 116 +             ans = 1;
 117 +             sec_data = 0;
 118               if (!dryrun)
 119                 log_query(F_CONFIG | F_NEG, name, &addr, NULL);
 120             }