int knot_query_set_opcode(knot_packet_t *query, uint8_t opcode)
{
if (query == NULL) {
return KNOT_EINVAL;
}
// set the OPCODE in the structure
knot_wire_flags_set_opcode(&query->header.flags1, opcode);
// set the OPCODE in the wire format
knot_wire_set_opcode(query->wireformat, opcode);
return KNOT_EOK;
}
/*! \brief Create zone query packet. */
static knot_pkt_t *zone_query(const zone_t *zone, uint16_t pkt_type, knot_mm_t *mm)
{
/* Determine query type and opcode. */
uint16_t query_type = KNOT_RRTYPE_SOA;
uint16_t opcode = KNOT_OPCODE_QUERY;
switch(pkt_type) {
case KNOT_QUERY_AXFR: query_type = KNOT_RRTYPE_AXFR; break;
case KNOT_QUERY_IXFR: query_type = KNOT_RRTYPE_IXFR; break;
case KNOT_QUERY_NOTIFY: opcode = KNOT_OPCODE_NOTIFY; break;
}
knot_pkt_t *pkt = knot_pkt_new(NULL, KNOT_WIRE_MAX_PKTSIZE, mm);
if (pkt == NULL) {
return NULL;
}
knot_wire_set_id(pkt->wire, dnssec_random_uint16_t());
knot_wire_set_opcode(pkt->wire, opcode);
if (pkt_type == KNOT_QUERY_NOTIFY) {
knot_wire_set_aa(pkt->wire);
}
knot_pkt_put_question(pkt, zone->name, KNOT_CLASS_IN, query_type);
/* Put current SOA (optional). */
zone_contents_t *contents = zone->contents;
if (pkt_type == KNOT_QUERY_IXFR) { /* RFC1995, SOA in AUTHORITY. */
knot_pkt_begin(pkt, KNOT_AUTHORITY);
knot_rrset_t soa_rr = node_rrset(contents->apex, KNOT_RRTYPE_SOA);
knot_pkt_put(pkt, KNOT_COMPR_HINT_QNAME, &soa_rr, 0);
} else if (pkt_type == KNOT_QUERY_NOTIFY) { /* RFC1996, SOA in ANSWER. */
knot_pkt_begin(pkt, KNOT_ANSWER);
knot_rrset_t soa_rr = node_rrset(contents->apex, KNOT_RRTYPE_SOA);
knot_pkt_put(pkt, KNOT_COMPR_HINT_QNAME, &soa_rr, 0);
}
return pkt;
}
int main(int argc, char *argv[])
{
plan(8*6 + 3); /* exec_query = 6 TAP tests */
/* Create processing context. */
knot_process_t query_ctx;
memset(&query_ctx, 0, sizeof(knot_process_t));
mm_ctx_mempool(&query_ctx.mm, sizeof(knot_pkt_t));
/* Create name server. */
server_t server;
server_init(&server);
server.opt_rr = knot_edns_new();
knot_edns_set_version(server.opt_rr, EDNS_VERSION);
knot_edns_set_payload(server.opt_rr, 4096);
conf()->identity = strdup("bogus.ns");
conf()->version = strdup("0.11");
/* Insert root zone. */
create_root_zone(&server, &query_ctx.mm);
zone_t *zone = knot_zonedb_find(server.zone_db, ROOT_DNAME);
/* Prepare. */
int state = NS_PROC_FAIL;
uint8_t query_wire[KNOT_WIRE_MAX_PKTSIZE];
uint16_t query_len = KNOT_WIRE_MAX_PKTSIZE;
knot_pkt_t *query = knot_pkt_new(query_wire, query_len, &query_ctx.mm);
/* Create query processing parameter. */
struct sockaddr_storage ss;
memset(&ss, 0, sizeof(struct sockaddr_storage));
sockaddr_set(&ss, AF_INET, "127.0.0.1", 53);
struct process_query_param param = {0};
param.query_source = &ss;
param.server = &server;
/* Query processor (CH zone) */
state = knot_process_begin(&query_ctx, ¶m, NS_PROC_QUERY);
const uint8_t chaos_dname[] = "\2""id""\6""server"; /* id.server */
knot_pkt_clear(query);
knot_pkt_put_question(query, chaos_dname, KNOT_CLASS_CH, KNOT_RRTYPE_TXT);
exec_query(&query_ctx, "CH TXT", query->wire, query->size, KNOT_RCODE_NOERROR);
/* Query processor (valid input). */
state = knot_process_reset(&query_ctx);
knot_pkt_clear(query);
knot_pkt_put_question(query, ROOT_DNAME, KNOT_CLASS_IN, KNOT_RRTYPE_SOA);
exec_query(&query_ctx, "IN/root", query->wire, query->size, KNOT_RCODE_NOERROR);
/* Query processor (-1 bytes, not enough data). */
state = knot_process_reset(&query_ctx);
exec_query(&query_ctx, "IN/few-data", query->wire, query->size - 1, KNOT_RCODE_FORMERR);
/* Query processor (+1 bytes trailing). */
state = knot_process_reset(&query_ctx);
query->wire[query->size] = '\1'; /* Initialize the "garbage" value. */
exec_query(&query_ctx, "IN/trail-garbage", query->wire, query->size + 1, KNOT_RCODE_FORMERR);
/* Forge NOTIFY query from SOA query. */
state = knot_process_reset(&query_ctx);
knot_wire_set_opcode(query->wire, KNOT_OPCODE_NOTIFY);
exec_query(&query_ctx, "IN/notify", query->wire, query->size, KNOT_RCODE_NOTAUTH);
/* Forge AXFR query. */
knot_process_reset(&query_ctx);
knot_pkt_clear(query);
knot_pkt_put_question(query, ROOT_DNAME, KNOT_CLASS_IN, KNOT_RRTYPE_AXFR);
exec_query(&query_ctx, "IN/axfr", query->wire, query->size, KNOT_RCODE_NOTAUTH);
/* Forge IXFR query (badly formed, no SOA in AUTHORITY section). */
knot_process_reset(&query_ctx);
knot_pkt_clear(query);
knot_pkt_put_question(query, ROOT_DNAME, KNOT_CLASS_IN, KNOT_RRTYPE_IXFR);
exec_query(&query_ctx, "IN/ixfr-formerr", query->wire, query->size, KNOT_RCODE_FORMERR);
/* Forge IXFR query (well formed). */
knot_process_reset(&query_ctx);
/* Append SOA RR. */
knot_rrset_t soa_rr = node_rrset(zone->contents->apex, KNOT_RRTYPE_SOA);
knot_pkt_begin(query, KNOT_AUTHORITY);
knot_pkt_put(query, COMPR_HINT_NONE, &soa_rr, 0);
exec_query(&query_ctx, "IN/ixfr", query->wire, query->size, KNOT_RCODE_NOTAUTH);
/* \note Tests below are not possible without proper zone and zone data. */
/* #189 Process UPDATE query. */
/* #189 Process AXFR client. */
/* #189 Process IXFR client. */
/* Query processor (smaller than DNS header, ignore). */
state = knot_process_reset(&query_ctx);
knot_pkt_clear(query);
knot_pkt_put_question(query, ROOT_DNAME, KNOT_CLASS_IN, KNOT_RRTYPE_SOA);
state = knot_process_in(query->wire, KNOT_WIRE_HEADER_SIZE - 1, &query_ctx);
ok(state == NS_PROC_NOOP, "ns: IN/less-than-header query ignored");
/* Query processor (response, ignore). */
state = knot_process_reset(&query_ctx);
knot_wire_set_qr(query->wire);
state = knot_process_in(query->wire, query->size, &query_ctx);
ok(state == NS_PROC_NOOP, "ns: IN/less-than-header query ignored");
/* Finish. */
state = knot_process_finish(&query_ctx);
ok(state == NS_PROC_NOOP, "ns: processing end" );
/* Cleanup. */
mp_delete((struct mempool *)query_ctx.mm.ctx);
server_deinit(&server);
return 0;
}
int main(int argc, char *argv[])
{
plan(8*6 + 4); /* exec_query = 6 TAP tests */
knot_mm_t mm;
mm_ctx_mempool(&mm, MM_DEFAULT_BLKSIZE);
/* Create processing context. */
knot_layer_t proc;
memset(&proc, 0, sizeof(knot_layer_t));
proc.mm = &mm;
/* Create fake server environment. */
server_t server;
int ret = create_fake_server(&server, proc.mm);
ok(ret == KNOT_EOK, "ns: fake server initialization");
zone_t *zone = knot_zonedb_find(server.zone_db, ROOT_DNAME);
/* Prepare. */
knot_pkt_t *query = knot_pkt_new(NULL, KNOT_WIRE_MAX_PKTSIZE, proc.mm);
/* Create query processing parameter. */
struct sockaddr_storage ss;
memset(&ss, 0, sizeof(struct sockaddr_storage));
sockaddr_set(&ss, AF_INET, "127.0.0.1", 53);
struct process_query_param param = {0};
param.remote = &ss;
param.server = &server;
/* Query processor (CH zone) */
knot_layer_begin(&proc, NS_PROC_QUERY, ¶m);
knot_pkt_clear(query);
knot_pkt_put_question(query, IDSERVER_DNAME, KNOT_CLASS_CH, KNOT_RRTYPE_TXT);
exec_query(&proc, "CH TXT", query, KNOT_RCODE_NOERROR);
/* Query processor (valid input). */
knot_layer_reset(&proc);
knot_pkt_clear(query);
knot_pkt_put_question(query, ROOT_DNAME, KNOT_CLASS_IN, KNOT_RRTYPE_SOA);
exec_query(&proc, "IN/root", query, KNOT_RCODE_NOERROR);
/* Query processor (-1 bytes, not enough data). */
knot_layer_reset(&proc);
query->size -= 1;
exec_query(&proc, "IN/few-data", query, KNOT_RCODE_FORMERR);
query->size += 1;
/* Query processor (+1 bytes trailing). */
knot_layer_reset(&proc);
query->wire[query->size] = '\1'; /* Initialize the "garbage" value. */
query->size += 1;
exec_query(&proc, "IN/trail-garbage", query, KNOT_RCODE_FORMERR);
query->size -= 1;
/* Forge NOTIFY query from SOA query. */
knot_layer_reset(&proc);
knot_wire_set_opcode(query->wire, KNOT_OPCODE_NOTIFY);
exec_query(&proc, "IN/notify", query, KNOT_RCODE_NOTAUTH);
/* Forge AXFR query. */
knot_layer_reset(&proc);
knot_pkt_clear(query);
knot_pkt_put_question(query, ROOT_DNAME, KNOT_CLASS_IN, KNOT_RRTYPE_AXFR);
exec_query(&proc, "IN/axfr", query, KNOT_RCODE_NOTAUTH);
/* Forge IXFR query (badly formed, no SOA in AUTHORITY section). */
knot_layer_reset(&proc);
knot_pkt_clear(query);
knot_pkt_put_question(query, ROOT_DNAME, KNOT_CLASS_IN, KNOT_RRTYPE_IXFR);
exec_query(&proc, "IN/ixfr-formerr", query, KNOT_RCODE_FORMERR);
/* Forge IXFR query (well formed). */
knot_layer_reset(&proc);
knot_pkt_clear(query);
knot_pkt_put_question(query, ROOT_DNAME, KNOT_CLASS_IN, KNOT_RRTYPE_IXFR);
/* Append SOA RR. */
knot_rrset_t soa_rr = node_rrset(zone->contents->apex, KNOT_RRTYPE_SOA);
knot_pkt_begin(query, KNOT_AUTHORITY);
knot_pkt_put(query, KNOT_COMPR_HINT_NONE, &soa_rr, 0);
exec_query(&proc, "IN/ixfr", query, KNOT_RCODE_NOTAUTH);
/* \note Tests below are not possible without proper zone and zone data. */
/* #189 Process UPDATE query. */
/* #189 Process AXFR client. */
/* #189 Process IXFR client. */
/* Query processor (smaller than DNS header, ignore). */
knot_layer_reset(&proc);
knot_pkt_clear(query);
knot_pkt_put_question(query, ROOT_DNAME, KNOT_CLASS_IN, KNOT_RRTYPE_SOA);
size_t orig_query_size = query->size;
query->size = KNOT_WIRE_HEADER_SIZE - 1;
int state = knot_layer_consume(&proc, query);
ok(state == KNOT_STATE_NOOP, "ns: IN/less-than-header query ignored");
query->size = orig_query_size;
/* Query processor (response, ignore). */
knot_layer_reset(&proc);
knot_wire_set_qr(query->wire);
state = knot_layer_consume(&proc, query);
ok(state == KNOT_STATE_NOOP, "ns: IN/less-than-header query ignored");
/* Finish. */
state = knot_layer_finish(&proc);
ok(state == KNOT_STATE_NOOP, "ns: processing end" );
/* Cleanup. */
mp_delete((struct mempool *)mm.ctx);
server_deinit(&server);
conf_free(conf());
return 0;
}