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Fix problem with --dnssec-timestamp

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whereby receipt of SIGHUP would erroneously engage timestamp checking.
This commit is contained in:
Kevin Darbyshire-Bryant
2016-07-11 21:03:27 +01:00
committed by Simon Kelley
parent 1d07667ac7
commit 06093a9a84
4 changed files with 12 additions and 5 deletions
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4
CHANGELOG
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@@ -17,6 +17,10 @@ version 2.77
Thanks to Ivan Kokshaysky for the diagnosis and
patch.
Fix problem with --dnssec-timestamp whereby receipt
of SIGHUP would erroneously engage timestamp checking.
Thanks to Kevin Darbyshire-Bryant for this work.
version 2.76
Include 0.0.0.0/8 in DNS rebind checks. This range

7
src/dnsmasq.c
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@@ -750,7 +750,8 @@ int main (int argc, char **argv)
my_syslog(LOG_INFO, _("DNSSEC validation enabled"));
if (option_bool(OPT_DNSSEC_TIME))
daemon->dnssec_no_time_check = option_bool(OPT_DNSSEC_TIME);
if (option_bool(OPT_DNSSEC_TIME) && !daemon->back_to_the_future)
my_syslog(LOG_INFO, _("DNSSEC signature timestamps not checked until first cache reload"));
if (rc == 1)
@@ -1226,10 +1227,10 @@ static void async_event(int pipe, time_t now)
{
case EVENT_RELOAD:
#ifdef HAVE_DNSSEC
if (option_bool(OPT_DNSSEC_VALID) && option_bool(OPT_DNSSEC_TIME))
if (daemon->dnssec_no_time_check && option_bool(OPT_DNSSEC_VALID) && option_bool(OPT_DNSSEC_TIME))
{
my_syslog(LOG_INFO, _("now checking DNSSEC signature timestamps"));
reset_option_bool(OPT_DNSSEC_TIME);
daemon->dnssec_no_time_check = 0;
}
#endif
/* fall through */

1
src/dnsmasq.h
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@@ -992,6 +992,7 @@ extern struct daemon {
#endif
#ifdef HAVE_DNSSEC
struct ds_config *ds;
int dnssec_no_time_check;
int back_to_the_future;
char *timestamp_file;
#endif

5
src/dnssec.c
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@@ -522,15 +522,16 @@ static int check_date_range(u32 date_start, u32 date_end)
if (utime(daemon->timestamp_file, NULL) != 0)
my_syslog(LOG_ERR, _("failed to update mtime on %s: %s"), daemon->timestamp_file, strerror(errno));
my_syslog(LOG_INFO, _("system time considered valid, now checking DNSSEC signature timestamps."));
daemon->back_to_the_future = 1;
set_option_bool(OPT_DNSSEC_TIME);
daemon->dnssec_no_time_check = 0;
queue_event(EVENT_RELOAD); /* purge cache */
}
if (daemon->back_to_the_future == 0)
return 1;
}
else if (option_bool(OPT_DNSSEC_TIME))
else if (daemon->dnssec_no_time_check)
return 1;
/* We must explicitly check against wanted values, because of SERIAL_UNDEF */