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Add constructor-noauth: keyword

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This commit is contained in:
Simon Kelley
2013-05-31 14:07:22 +01:00
parent 429805dbbc
commit 921360ce62
4 changed files with 17 additions and 2 deletions
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12
man/dnsmasq.8
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@@ -574,9 +574,11 @@ needed for a client to do validation itself.
.TP
.B --auth-zone=<domain>[,<subnet>[/<prefix length>][,<subnet>[/<prefix length>].....]]
Define a DNS zone for which dnsmasq acts as authoritative server. Locally defined DNS records which are in the domain
will be served, except that A and AAAA records must be in one of the
will be served. A and AAAA records must be in one of the
specified subnets, or in a subnet corresponding to a constructed DHCP
range. The subnet(s) are also used to define in-addr.arpa and
range. (This can be overridden with
.B constructor-noauth:
) The subnet(s) are also used to define in-addr.arpa and
ipv6.arpa domains which are served for reverse-DNS queries. If not
specified, the prefix length defaults to 24 for IPv4 and 64 for IPv6.
For IPv4 subnets, the prefix length should be have the value 8, 16 or 24
@@ -660,6 +662,12 @@ equal either the start or end address given in the dhcp-range. This is
to prevent prefixes becoming perpetual if the interface
gains a SLAAC address for the prefix when it is advertised by dnsmasq.
There is a variant of the constructor: syntax using the keyword
.B constructor-noauth.
See
.B --auth-zone
for an explanation of this.
The optional
.B set:<tag>
sets an alphanumeric label which marks this network so that

1
src/auth.c
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@@ -54,6 +54,7 @@ static int filter_constructed_dhcp(struct auth_zone *zone, int flag, struct all_
if (flag & F_IPV6)
for (context = daemon->dhcp6; context; context = context->next)
if ((context->flags & CONTEXT_CONSTRUCTED) &&
!(context->flags & CONTEXT_NOAUTH) &&
is_same_net6(&(addr_u->addr.addr6), &context->start6, context->prefix))
return 1;
#endif

1
src/dnsmasq.h
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@@ -731,6 +731,7 @@ struct dhcp_context {
#define CONTEXT_RA 8192
#define CONTEXT_CONF_USED 16384
#define CONTEXT_USED 32768
#define CONTEXT_NOAUTH 65536
struct ping_result {
struct in_addr addr;

5
src/option.c
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@@ -2409,6 +2409,11 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
new->template_interface = opt_string_alloc(a[leasepos] + 12);
new->flags |= CONTEXT_TEMPLATE;
}
else if (strstr(a[leasepos], "constructor-noauth:") == a[leasepos])
{
new->template_interface = opt_string_alloc(a[leasepos] + 19);
new->flags |= CONTEXT_TEMPLATE | CONTEXT_NOAUTH;
}
else
break;
}