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CNAME auth support.

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This commit is contained in:
Simon Kelley
2012-12-01 16:42:47 +00:00
parent 86e3b9a026
commit 5c0bd5b112
1 changed files with 23 additions and 2 deletions
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23
src/auth.c
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@@ -77,6 +77,7 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
struct interface_name *intr; struct interface_name *intr;
struct naptr *na; struct naptr *na;
struct all_addr addr; struct all_addr addr;
struct cname *a;
/* save pointer to name for copying into answers */ /* save pointer to name for copying into answers */
nameoffset = p - (unsigned char *)header; nameoffset = p - (unsigned char *)header;
@@ -185,6 +186,7 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
continue; continue;
} }
cname_restart:
namelen = strlen(name); namelen = strlen(name);
for (zone = daemon->auth_zones; zone; zone = zone->next) for (zone = daemon->auth_zones; zone; zone = zone->next)
@@ -310,6 +312,25 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
} }
} }
for (a = daemon->cnames; a; a = a->next)
if (hostname_isequal(name, a->alias) )
{
log_query(F_CONFIG | F_CNAME, name, NULL, NULL);
strcpy(name, a->target);
if (!strchr(name, '.'))
{
strcat(name, ".");
strcat(name, zone->domain);
}
found = 1;
if (add_resource_record(header, limit, &trunc, nameoffset, &ansp,
daemon->auth_ttl, NULL,
T_CNAME, C_IN, "d", name))
anscount++;
goto cname_restart;
}
if (qtype == T_A) if (qtype == T_A)
flag = F_IPV4; flag = F_IPV4;
@@ -347,7 +368,7 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
{ {
name[namelen - domainlen - 1] = 0; /* remove domain part */ name[namelen - domainlen - 1] = 0; /* remove domain part */
if ((crecp = cache_find_by_name(NULL, name, now, F_IPV4 | F_IPV6))) if (!strchr(name, '.') && (crecp = cache_find_by_name(NULL, name, now, F_IPV4 | F_IPV6)))
{ {
if (crecp->flags & F_DHCP) if (crecp->flags & F_DHCP)
do do