This breaks support for 6.2 or older client libraries.
<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.153 2002/08/29 00:17:01 tgl Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.154 2002/08/29 03:22:00 tgl Exp $
-->
<appendix id="release">
worries about funny characters.
-->
<literallayout><![CDATA[
+Client libraries older than 6.3 no longer supported (version 0 protocol removed)
PREPARE statement allows caching query plans for interactive statements
Type OPAQUE is now deprecated in favor of pseudo-types cstring, trigger, etc
Standalone composite types can now be created with CREATE TYPE
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/libpq/auth.c,v 1.85 2002/08/27 16:21:50 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/libpq/auth.c,v 1.86 2002/08/29 03:22:01 tgl Exp $
*
*-------------------------------------------------------------------------
*/
static void sendAuthRequest(Port *port, AuthRequest areq);
-static int old_be_recvauth(Port *port);
-static int map_old_to_new(Port *port, UserAuth old, int status);
static void auth_failed(Port *port, int status);
static int recv_and_check_password_packet(Port *port);
-static int recv_and_check_passwordv0(Port *port);
char *pg_krb_server_keyfile;
/*
- * Handle a v0 password packet.
- */
-static int
-recv_and_check_passwordv0(Port *port)
-{
- int32 len;
- char *buf;
- PasswordPacketV0 *pp;
- char *user,
- *password,
- *cp,
- *start;
- int status;
-
- if (pq_getint(&len, 4) == EOF)
- return STATUS_EOF;
- len -= 4;
- buf = palloc(len);
- if (pq_getbytes(buf, len) == EOF)
- {
- pfree(buf);
- return STATUS_EOF;
- }
-
- pp = (PasswordPacketV0 *) buf;
-
- /*
- * The packet is supposed to comprise the user name and the password
- * as C strings. Be careful to check that this is the case.
- */
- user = password = NULL;
-
- len -= sizeof(pp->unused);
-
- cp = start = pp->data;
-
- while (len-- > 0)
- if (*cp++ == '\0')
- {
- if (user == NULL)
- user = start;
- else
- {
- password = start;
- break;
- }
-
- start = cp;
- }
-
- if (user == NULL || password == NULL)
- {
- elog(LOG, "pg_password_recvauth: badly formed password packet");
- status = STATUS_ERROR;
- }
- else
- {
- UserAuth saved;
-
- /* Check the password. */
-
- saved = port->auth_method;
- port->auth_method = uaPassword;
-
- status = md5_crypt_verify(port, user, password);
-
- port->auth_method = saved;
-
- /* Adjust the result if necessary. */
- if (map_old_to_new(port, uaPassword, status) != STATUS_OK)
- status = STATUS_ERROR;
- }
-
- pfree(buf);
-
- return status;
-}
-
-
-/*
* Tell the user the authentication failed, but not (much about) why.
*
* There is a tradeoff here between security concerns and making life
if (hba_getauthmethod(port) != STATUS_OK)
elog(FATAL, "Missing or erroneous pg_hba.conf file, see postmaster log for details");
- /* Handle old style authentication. */
- if (PG_PROTOCOL_MAJOR(port->proto) == 0)
- {
- status = old_be_recvauth(port);
- if (status != STATUS_OK)
- auth_failed(port, status);
- return;
- }
-
- /* Handle new style authentication. */
switch (port->auth_method)
{
case uaReject:
pfree(buf.data);
return result;
}
-
-
-/*
- * Server demux routine for incoming authentication information for protocol
- * version 0.
- */
-static int
-old_be_recvauth(Port *port)
-{
- int status;
- MsgType msgtype = (MsgType) port->proto;
-
- /* Handle the authentication that's offered. */
- switch (msgtype)
- {
- case STARTUP_KRB4_MSG:
- status = map_old_to_new(port, uaKrb4, pg_krb4_recvauth(port));
- break;
-
- case STARTUP_KRB5_MSG:
- status = map_old_to_new(port, uaKrb5, pg_krb5_recvauth(port));
- break;
-
- case STARTUP_MSG:
- status = map_old_to_new(port, uaTrust, STATUS_OK);
- break;
-
- case STARTUP_PASSWORD_MSG:
- status = recv_and_check_passwordv0(port);
- break;
-
- default:
- elog(LOG, "Invalid startup message type: %u", msgtype);
-
- return STATUS_ERROR;
- }
-
- return status;
-}
-
-
-/*
- * The old style authentication has been done. Modify the result of this (eg.
- * allow the connection anyway, disallow it anyway, or use the result)
- * depending on what authentication we really want to use.
- */
-static int
-map_old_to_new(Port *port, UserAuth old, int status)
-{
- switch (port->auth_method)
- {
- case uaMD5:
- case uaCrypt:
- case uaReject:
-#ifdef USE_PAM
- case uaPAM:
-#endif /* USE_PAM */
- status = STATUS_ERROR;
- break;
-
- case uaKrb4:
- if (old != uaKrb4)
- status = STATUS_ERROR;
- break;
-
- case uaKrb5:
- if (old != uaKrb5)
- status = STATUS_ERROR;
- break;
-
- case uaTrust:
- status = STATUS_OK;
- break;
-
- case uaIdent:
- status = authident(port);
- break;
-
- case uaPassword:
- if (old != uaPassword)
- status = STATUS_ERROR;
-
- break;
- }
-
- return status;
-}
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: pqformat.c,v 1.22 2002/08/08 06:32:26 ishii Exp $
+ * $Id: pqformat.c,v 1.23 2002/08/29 03:22:01 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include <endian.h>
#endif
-#ifndef BYTE_ORDER
-#error BYTE_ORDER must be defined as LITTLE_ENDIAN, BIG_ENDIAN or PDP_ENDIAN
-#endif
-
-#if BYTE_ORDER == LITTLE_ENDIAN
-
-#define ntoh_s(n) n
-#define ntoh_l(n) n
-#define hton_s(n) n
-#define hton_l(n) n
-
-#else
-#if BYTE_ORDER == BIG_ENDIAN
-
-#define ntoh_s(n) (uint16)((((uint16)n & 0x00ff) << 8) | \
- (((uint16)n & 0xff00) >> 8))
-#define ntoh_l(n) (uint32)((((uint32)n & 0x000000ff) << 24) | \
- (((uint32)n & 0x0000ff00) << 8) | \
- (((uint32)n & 0x00ff0000) >> 8) | \
- (((uint32)n & 0xff000000) >> 24))
-#define hton_s(n) (ntoh_s(n))
-#define hton_l(n) (ntoh_l(n))
-
-#else
-#if BYTE_ORDER == PDP_ENDIAN
-
-#error PDP_ENDIAN macros not written yet
-
-#else
-
-#error BYTE_ORDER not defined as anything understood
-#endif
-#endif
-#endif
-
/* --------------------------------
* pq_sendbyte - append a raw byte to a StringInfo buffer
appendBinaryStringInfo(buf, (char *) &n8, 1);
break;
case 2:
- n16 = ((PG_PROTOCOL_MAJOR(FrontendProtocol) == 0) ? hton_s(i) : htons((uint16) i));
+ n16 = htons((uint16) i);
appendBinaryStringInfo(buf, (char *) &n16, 2);
break;
case 4:
- n32 = ((PG_PROTOCOL_MAJOR(FrontendProtocol) == 0) ? hton_l(i) : htonl((uint32) i));
+ n32 = htonl((uint32) i);
appendBinaryStringInfo(buf, (char *) &n32, 4);
break;
default:
break;
case 2:
status = pq_getbytes((char *) &n16, 2);
- *result = (int) ((PG_PROTOCOL_MAJOR(FrontendProtocol) == 0) ?
- ntoh_s(n16) : ntohs(n16));
+ *result = (int) (ntohs(n16));
break;
case 4:
status = pq_getbytes((char *) &n32, 4);
- *result = (int) ((PG_PROTOCOL_MAJOR(FrontendProtocol) == 0) ?
- ntoh_l(n32) : ntohl(n32));
+ *result = (int) (ntohl(n32));
break;
default:
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: libpq-be.h,v 1.33 2002/08/18 03:03:26 momjian Exp $
+ * $Id: libpq-be.h,v 1.34 2002/08/29 03:22:01 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#endif
-/* Protocol v0 password packet. */
-
-typedef struct PasswordPacketV0
-{
- uint32 unused;
- char data[288]; /* User and password as strings. */
-} PasswordPacketV0;
-
-
/*
- * This is used by the postmaster in its communication with frontends. It is
+ * This is used by the postmaster in its communication with frontends. It
* contains all state information needed during this communication before the
* backend is run.
*/
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: pqcomm.h,v 1.68 2002/08/27 16:21:51 momjian Exp $
+ * $Id: pqcomm.h,v 1.69 2002/08/29 03:22:01 tgl Exp $
*
*-------------------------------------------------------------------------
*/
/* The earliest and latest frontend/backend protocol version supported. */
-#define PG_PROTOCOL_EARLIEST PG_PROTOCOL(0,0)
+#define PG_PROTOCOL_EARLIEST PG_PROTOCOL(1,0)
#define PG_PROTOCOL_LATEST PG_PROTOCOL(2,0)
/*
typedef uint32 ProtocolVersion; /* Fe/Be protocol version number */
+typedef ProtocolVersion MsgType;
+
+
typedef struct StartupPacket
{
ProtocolVersion protoVersion; /* Protocol version */
typedef uint32 AuthRequest;
-/* This next section is to maintain compatibility with protocol v0.0. */
-
-#define STARTUP_MSG 7 /* Initialise a connection */
-#define STARTUP_KRB4_MSG 10 /* krb4 session follows */
-#define STARTUP_KRB5_MSG 11 /* krb5 session follows */
-#define STARTUP_PASSWORD_MSG 14 /* Password follows */
-
-typedef ProtocolVersion MsgType;
-
-
/* A client can also send a cancel-current-operation request to the postmaster.
* This is uglier than sending it directly to the client's backend, but it
* avoids depending on out-of-band communication facilities.
* exceed INITIAL_EXPBUFFER_SIZE (currently 256 bytes).
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-auth.c,v 1.68 2002/07/20 05:43:31 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-auth.c,v 1.69 2002/08/29 03:22:01 tgl Exp $
*
*-------------------------------------------------------------------------
*/
* common definitions for generic fe/be routines
*/
+#define STARTUP_MSG 7 /* Initialise a connection */
+#define STARTUP_KRB4_MSG 10 /* krb4 session follows */
+#define STARTUP_KRB5_MSG 11 /* krb5 session follows */
+#define STARTUP_PASSWORD_MSG 14 /* Password follows */
+
struct authsvc
{
const char *name; /* service nickname (for command line) */
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