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Get the query/response flag in the right place, and make named return

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SERVFAIL on all replies again, until I fix up the database stuff again.
This commit is contained in:
Michael Graff 1999-05-01 18:07:52 +00:00
parent b02262cbcd
commit d20401b765
2 changed files with 67 additions and 14 deletions
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79
bin/named/server.c
View file

@ -99,26 +99,81 @@ extern dns_result_t
printmessage(dns_message_t *);
dns_result_t
resolve_packet(isc_mem_t *mctx, dns_db_t *, dns_message_t *,
dns_message_t **, isc_buffer_t *);
resolve_packet(isc_mem_t *mctx, dns_db_t *, dns_message_t *, isc_buffer_t *);
dns_result_t
resolve_packet(isc_mem_t *mctx, dns_db_t *db, dns_message_t *query,
dns_message_t **reply, isc_buffer_t *target)
isc_buffer_t *target)
{
dns_message_t *message;
dns_result_t result;
dns_name_t *name;
result = dns_message_create(mctx, &message, DNS_MESSAGE_INTENT_RENDER);
CHECKRESULT(result, "dns_message_create failed");
message->id = query->id;
message->rcode =
message->rcode = dns_rcode_servfail;
message->flags = query->flags;
message->flags |= DNS_MESSAGEFLAG_QR;
/*
* XXX This is a total and disgusting hack. We need a way to add
* a copy of a rdataset and a name to the new message, but for now
* I'll just steal the one from the existing query message, and
* make certain the query is not destroyed before our message is.
*/
result = dns_message_firstname(query, DNS_SECTION_QUESTION);
if (result != DNS_R_SUCCESS)
return (result);
dns_message_currentname(query, DNS_SECTION_QUESTION, &name);
dns_message_addname(message, name, DNS_SECTION_QUESTION);
result = printmessage(message);
CHECKRESULT(result, "printmessage() failed");
INSIST(result == DNS_R_SUCCESS); /* XXX not in a real server */
result = dns_message_renderbegin(message, target);
if (result != DNS_R_SUCCESS)
return (result);
return (DNS_R_NOSPACE);
result = dns_message_rendersection(message, DNS_SECTION_QUESTION,
0, 0);
if (result != DNS_R_SUCCESS)
return (result);
result = dns_message_rendersection(message, DNS_SECTION_ANSWER,
0, 0);
if (result != DNS_R_SUCCESS)
return (result);
result = dns_message_rendersection(message, DNS_SECTION_AUTHORITY,
0, 0);
if (result != DNS_R_SUCCESS)
return (result);
result = dns_message_rendersection(message, DNS_SECTION_ADDITIONAL,
0, 0);
if (result != DNS_R_SUCCESS)
return (result);
result = dns_message_rendersection(message, DNS_SECTION_OPT,
0, 0);
if (result != DNS_R_SUCCESS)
return (result);
result = dns_message_rendersection(message, DNS_SECTION_TSIG,
0, 0);
if (result != DNS_R_SUCCESS)
return (result);
result = dns_message_renderend(message);
dns_message_destroy(&message);
return (DNS_R_SUCCESS);
}
/*
@ -138,7 +193,7 @@ dispatch(isc_mem_t *mctx, isc_region_t *rxr, unsigned int reslen)
isc_buffer_t target;
dns_result_t result;
isc_region_t txr;
dns_message_t *message, *reply;
dns_message_t *message;
/*
* Set up the input buffer from the contents of the region passed
@ -167,11 +222,9 @@ dispatch(isc_mem_t *mctx, isc_region_t *rxr, unsigned int reslen)
}
isc_buffer_init(&target, t, sizeof(t), ISC_BUFFERTYPE_BINARY);
result = resolve_packet(mctx, db, message, &reply, &target);
dns_message_destroy(&message);
result = resolve_packet(mctx, db, message, &target);
if (result != DNS_R_SUCCESS) {
if (reply != NULL)
dns_message_destroy(&reply);
dns_message_destroy(&message);
return (result);
}
@ -181,7 +234,7 @@ dispatch(isc_mem_t *mctx, isc_region_t *rxr, unsigned int reslen)
isc_buffer_used(&target, &txr);
txr.base = isc_mem_get(mctx, txr.length + reslen);
if (txr.base == NULL) {
dns_message_destroy(&reply);
dns_message_destroy(&message);
return (DNS_R_NOMEMORY);
}
@ -196,7 +249,7 @@ dispatch(isc_mem_t *mctx, isc_region_t *rxr, unsigned int reslen)
if (want_stats)
isc_mem_stats(mctx, stdout);
dns_message_destroy(&reply);
dns_message_destroy(&message);
return (DNS_R_SUCCESS);
}

2
lib/dns/include/dns/message.h
View file

@ -66,7 +66,7 @@ ISC_LANG_BEGINDECLS
#define DNS_MESSAGE_OPCODE_MASK 0x7000U
#define DNS_MESSAGE_OPCODE_SHIFT 11
#define DNS_MESSAGE_RCODE_MASK 0x000fU
#define DNS_MESSAGE_FLAG_MASK 0x1ff0U
#define DNS_MESSAGE_FLAG_MASK 0x8ff0U
#define DNS_MESSAGE_HEADER_LEN 12 /* 6 u_int16_t's */