diff options
| -rw-r--r-- | source4/dns_server/dns_update.c | 69 |
1 files changed, 67 insertions, 2 deletions
diff --git a/source4/dns_server/dns_update.c b/source4/dns_server/dns_update.c index 4cd940ed10..72944730a6 100644 --- a/source4/dns_server/dns_update.c +++ b/source4/dns_server/dns_update.c @@ -29,6 +29,67 @@ #include "dsdb/common/util.h" #include "dns_server/dns_server.h" +static WERROR check_prerequsites(struct dns_server *dns, + TALLOC_CTX *mem_ctx, + const struct dns_name_packet *in, + const struct dns_res_rec *prereqs, uint16_t count) +{ + const struct dns_name_question *zone; + size_t host_part_len = 0; + uint16_t i; + + zone = in->questions; + + for (i = 0; i < count; i++) { + const struct dns_res_rec *r = &prereqs[i]; + bool match; + + if (r->ttl != 0) { + return DNS_ERR(FORMAT_ERROR); + } + match = dns_name_match(zone->name, r->name, &host_part_len); + if (!match) { + /* TODO: check if we need to echo all prereqs if the + * first fails */ + return DNS_ERR(NOTZONE); + } + if (r->rr_class == DNS_QCLASS_ANY) { + if (r->length != 0) { + return DNS_ERR(FORMAT_ERROR); + } + if (r->rr_type == DNS_QTYPE_ALL) { + /* TODO: Check if zone has at least one RR */ + return DNS_ERR(NAME_ERROR); + } else { + /* TODO: Check if RR exists of the specified type */ + return DNS_ERR(NXRRSET); + } + continue; + } + if (r->rr_class == DNS_QCLASS_NONE) { + if (r->length != 0) { + return DNS_ERR(FORMAT_ERROR); + } + if (r->rr_type == DNS_QTYPE_ALL) { + /* TODO: Return this error if the given name exits in this zone */ + return DNS_ERR(YXDOMAIN); + } else { + /* TODO: Return error if there's an RRset of this type in the zone */ + return DNS_ERR(YXRRSET); + } + continue; + } + if (r->rr_class == zone->question_class) { + /* Check if there's a RR with this */ + return DNS_ERR(NOT_IMPLEMENTED); + } else { + return DNS_ERR(FORMAT_ERROR); + } + } + + + return WERR_OK; +} WERROR dns_server_process_update(struct dns_server *dns, TALLOC_CTX *mem_ctx, @@ -40,7 +101,7 @@ WERROR dns_server_process_update(struct dns_server *dns, struct dns_name_question *zone; const struct dns_server_zone *z; size_t host_part_len = 0; - uint16_t i; + WERROR werror = WERR_DNS_ERROR_RCODE_NOT_IMPLEMENTED; if (in->qdcount != 1) { return DNS_ERR(FORMAT_ERROR); @@ -68,8 +129,12 @@ WERROR dns_server_process_update(struct dns_server *dns, } if (host_part_len != 0) { + /* TODO: We need to delegate this one */ return DNS_ERR(NOT_IMPLEMENTED); } - return DNS_ERR(NOT_IMPLEMENTED); + werror = check_prerequsites(dns, mem_ctx, in, prereqs, prereq_count); + W_ERROR_NOT_OK_RETURN(werror); + + return werror; } |