.row &%ignore_fromline_hosts%& "allow &""From ""& from these hosts"
.row &%ignore_fromline_local%& "allow &""From ""& from local SMTP"
.row &%pipelining_advertise_hosts%& "advertise pipelining to these hosts"
+.row &%pipelining_connect_advertise_hosts%& "advertise pipelining to these hosts"
.row &%prdr_enable%& "advertise PRDR to all hosts"
.row &%smtputf8_advertise_hosts%& "advertise SMTPUTF8 to these hosts"
.row &%tls_advertise_hosts%& "advertise TLS to these hosts"
that clients will use it; &"out of order"& commands that are &"expected"& do
not count as protocol errors (see &%smtp_max_synprot_errors%&).
+.new
+.option pipelining_connect_advertise_hosts main "host list&!!" *
+.cindex "pipelining" "early connection"
+.cindex "pipelining" PIPE_CONNECT
+If Exim is built with the SUPPORT_PIPE_CONNECT build option
+this option controls which hosts the facility is advertised to
+and from which pipeline early-connection (before MAIL) SMTP
+commands are acceptable.
+When used, the pipelining saves on roundtrip times.
+
+Currently the option name &"X_PIPE_CONNECT"& is used.
+.wen
+
.option prdr_enable main boolean false
.cindex "PRDR" "enabling on server"
Exim will not use the SMTP PIPELINING extension when delivering to any host
that matches this list, even if the server host advertises PIPELINING support.
+.new
+.option hosts_pipe_connect smtp "host list&!!" unset
+.cindex "pipelining" "early connection"
+.cindex "pipelining" PIPE_CONNECT
+If Exim is built with the SUPPORT_PIPE_CONNECT build option
+this option controls which to hosts the facility watched for
+and recorded, and used for subsequent connections.
+
+The retry hints database is used for the record,
+and records are subject to the &%retry_data_expire%& option.
+When used, the pipelining saves on roundtrip times.
+It also turns SMTP into a client-first protocol
+so combines well with TCP Fast Open.
+
+Note:
+When the facility is used, the transport &%helo_data%& option
+will be expanded before the &$sending_ip_address$& variable
+is filled in.
+A check is made for the use of that variable, without the
+presence of a &"def:"& test on it, but suitably complex coding
+can avoid the check and produce unexpected results.
+You have been warned.
+.wen
+
.option hosts_avoid_tls smtp "host list&!!" unset
.cindex "TLS" "avoiding for certain hosts"
On accept lines, where PIPELINING was offered but not used by the client,
the field has a minus appended.
+
+.new
+.cindex "pipelining" "early connection"
+If Exim is built with the SUPPORT_PIPE_CONNECT build option
+accept "L" fields have a period appended if the feature was
+offered but not used, or an asterisk appended if used.
+Delivery "L" fields have an asterisk appended if used.
+.wen
+
.next
.cindex "log" "queue run"
.cindex "queue runner" "logging"
reject under TFO.
JH/25 The smtp transport option "hosts_try_fastopen" now enables all hosts by
- default. If the platfor supports and has the facility enabled, it will
+ default. If the platform supports and has the facility enabled, it will
be requested on all coneections.
+JH/26 The PIPE_CONNECT facility is promoted from experimental status and is now
+ controlled by the build-time option SUPPORT_PIPE_CONNECT.
+
Exim version 4.92
-----------------
-Early pipelining support
-------------------------
-Ref: https://datatracker.ietf.org/doc/draft-harris-early-pipe/
-
-If compiled with EXPERIMENTAL_PIPE_CONNECT support is included for this feature.
-The server advertises the feature in its EHLO response, currently using the name
-"X_PIPE_CONNECT" (this will change, some time in the future).
-A client may cache this information, along with the rest of the EHLO response,
-and use it for later connections. Those later ones can send esmtp commands before
-a banner is received.
-
-Up to 1.5 roundtrip times can be taken out of cleartext connections, 2.5 on
-STARTTLS connections.
-
-In combination with the traditional PIPELINING feature the following example
-sequences are possible (among others):
-
-(client) (server)
-
-EHLO,MAIL,RCPT,DATA ->
- <- banner,EHLO-resp,MAIL-ack,RCPT-ack,DATA-goahead
-message-data ->
-------
-
-EHLO,MAIL,RCPT,BDAT ->
- <- banner,EHLO-resp,MAIL-ack,RCPT-ack
-message-data ->
-------
-
-EHLO,STARTTLS ->
- <- banner,EHLO-resp,TLS-goahead
-TLS1.2-client-hello ->
- <- TLS-server-hello,cert,hello-done
-client-Kex,change-cipher,finished ->
- <- change-cipher,finished
-EHLO,MAIL,RCPT,DATA ->
- <- EHLO-resp,MAIL-ack,RCPT-ack,DATA-goahead
-
-------
-(tls-on-connect)
-TLS1.2-client-hello ->
- <- TLS-server-hello,cert,hello-done
-client-Kex,change-cipher,finished ->
- <- change-cipher,finshed
- <- banner
-EHLO,MAIL,RCPT,DATA ->
- <- EHLO-resp,MAIL-ack,RCPT-ack,DATA-goahead
-
-Where the initial client packet is SMTP, it can combine with the TCP Fast Open
-feature and be sent in the TCP SYN.
-
-
-A main-section option "pipelining_connect_advertise_hosts" (default: *)
-and an smtp transport option "hosts_pipe_connect" (default: unset)
-control the feature.
-
-If the "pipelining" log_selector is enabled, the "L" field in server <=
-log lines has a period appended if the feature was advertised but not used;
-or has an asterisk appended if the feature was used. In client => lines
-the "L" field has an asterisk appended if the feature was used.
-
-The "retry_data_expire" option controls cache invalidation.
-Entries are also rewritten (or cleared) if the adverised features
-change.
-
-
-NOTE: since the EHLO command must be constructed before the connection is
-made it cannot depend on the interface IP address that will be used.
-The string "$sending_ip_address" is checked for; if it appears in helo_data
-and "def:sending_ip_address" does not, the facility is disabled.
-
-Transport configurations should be checked for this. An example avoidance:
-
- helo_data = ${if def:sending_ip_address \
- {${lookup dnsdb{>! ptr=$sending_ip_address} \
- {${sg{$value} {^([^!]*).*\$} {\$1}}} fail}} \
- {$primary_hostname}}
-
-
-
-
TLS Session Resumption
----------------------
TLS Session Resumption for TLS 1.2 and TLS 1.3 connections can be used (defined
# DISABLE_EVENT=yes
+# Uncomment this line to include support for early pipelining, per
+# https://datatracker.ietf.org/doc/draft-harris-early-pipe/
+# SUPPORT_PIPE_CONNECT
+
+
#------------------------------------------------------------------------------
# Compiling Exim with experimental features. These are documented in
# experimental-spec.txt. "Experimental" means that the way these features are
#define SUPPORT_MAILSTORE
#define SUPPORT_MBX
#define SUPPORT_MOVE_FROZEN_MESSAGES
+#define SUPPORT_PIPE_CONNECT
#define SUPPORT_PAM
#define SUPPORT_PROXY
#define SUPPORT_SOCKS
#define EXPERIMENTAL_DMARC
#define DMARC_TLD_FILE "/etc/exim/opendmarc.tlds"
#define EXPERIMENTAL_LMDB
-#define EXPERIMENTAL_PIPE_CONNECT
#define EXPERIMENTAL_QUEUEFILE
#define EXPERIMENTAL_SRS
#define EXPERIMENTAL_TLS_RESUME
uschar bloom[40]; /* Bloom filter which may be larger than this */
} dbdata_ratelimit_unique;
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
/* This structure records the EHLO responses, cleartext and crypted,
for an IP, as bitmasks (cf. OPTION_TLS) */
{
if (testflag(addr, af_pipelining))
g = string_catn(g, US" L", 2);
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (testflag(addr, af_early_pipe))
g = string_catn(g, US"*", 1);
#endif
case 'L':
switch (*subid)
{
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
case 2: setflag(addr, af_early_pipe); /*FALLTHROUGH*/
#endif
case 1: setflag(addr, af_pipelining); break;
#endif
if (testflag(addr, af_pipelining))
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (testflag(addr, af_early_pipe))
rmt_dlv_checked_write(fd, 'L', '2', NULL, 0);
else
if (!regex_IGNOREQUOTA) regex_IGNOREQUOTA =
regex_must_compile(US"\\n250[\\s\\-]IGNOREQUOTA(\\s|\\n|$)", FALSE, TRUE);
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (!regex_EARLY_PIPE) regex_EARLY_PIPE =
regex_must_compile(US"\\n250[\\s\\-]" EARLY_PIPE_FEATURE_NAME "(\\s|\\n|$)", FALSE, TRUE);
#endif
#ifndef DISABLE_OCSP
fprintf(fp, " OCSP");
#endif
+#ifdef SUPPORT_PIPE_CONNECT
+ fprintf(fp, " PIPE_CONNECT");
+#endif
#ifndef DISABLE_PRDR
fprintf(fp, " PRDR");
#endif
#ifdef EXPERIMENTAL_DSN_INFO
fprintf(fp, " Experimental_DSN_info");
#endif
-#ifdef EXPERIMENTAL_PIPE_CONNECT
- fprintf(fp, " Experimental_PIPE_CONNECT");
-#endif
#ifdef EXPERIMENTAL_TLS_RESUME
fprintf(fp, " Experimental_TLS_resume");
#endif
.sender_name_forced = FALSE,
.sender_set_untrusted = FALSE,
.smtp_authenticated = FALSE,
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
.smtp_in_early_pipe_advertised = FALSE,
.smtp_in_early_pipe_no_auth = FALSE,
.smtp_in_early_pipe_used = FALSE,
uschar *percent_hack_domains = NULL;
uschar *pid_file_path = US PID_FILE_PATH
"\0<--------------Space to patch pid_file_path->";
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
uschar *pipe_connect_advertise_hosts = US"*";
#endif
uschar *pipelining_advertise_hosts = US"*";
const pcre *regex_IGNOREQUOTA = NULL;
const pcre *regex_PIPELINING = NULL;
const pcre *regex_SIZE = NULL;
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
const pcre *regex_EARLY_PIPE = NULL;
#endif
const pcre *regex_ismsgid = NULL;
BOOL sender_name_forced :1; /* Set by -F */
BOOL sender_set_untrusted :1; /* Sender set by untrusted caller */
BOOL smtp_authenticated :1; /* Sending client has authenticated */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
BOOL smtp_in_early_pipe_advertised :1; /* server advertised PIPE_CONNECT */
BOOL smtp_in_early_pipe_no_auth :1; /* too many authenticator names */
BOOL smtp_in_early_pipe_used :1; /* client did send early data */
extern uschar *percent_hack_domains; /* Local domains for which '% operates */
extern uschar *pid_file_path; /* For writing daemon pids */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
extern uschar *pipe_connect_advertise_hosts; /* for banner/EHLO pipelining */
#endif
extern uschar *pipelining_advertise_hosts; /* As it says */
extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
extern const pcre *regex_EARLY_PIPE; /* For recognizing PIPE_CONNCT */
#endif
extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
#ifndef DISABLE_OCSP
builtin_macro_create(US"_HAVE_OCSP");
#endif
+#ifdef SUPPORT_PIPE_CONNECT
+ builtin_macro_create(US"_HAVE_PIPE_CONNECT");
+#endif
#ifndef DISABLE_PRDR
builtin_macro_create(US"_HAVE_PRDR");
#endif
#ifdef EXPERIMENTAL_DSN_INFO
builtin_macro_create(US"_HAVE_DSN_INFO");
#endif
-#ifdef EXPERIMENTAL_PIPE_CONNECT
- builtin_macro_create(US"_HAVE_PIPE_CONNECT");
-#endif
#ifdef EXPERIMENTAL_TLS_RESUME
builtin_macro_create(US"_HAVE_TLS_RESUME");
#endif
#endif
{ "pid_file_path", opt_stringptr, &pid_file_path },
{ "pipelining_advertise_hosts", opt_stringptr, &pipelining_advertise_hosts },
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
{ "pipelining_connect_advertise_hosts", opt_stringptr,
&pipe_connect_advertise_hosts },
#endif
static void
auths_init(void)
{
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
int nauths = 0;
#endif
"(%s and %s) have the same public name (%s)",
au->client ? US"client" : US"server", au->name, bu->name,
au->public_name);
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
nauths++;
#endif
}
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
f.smtp_in_early_pipe_no_auth = nauths > 16;
#endif
}
if (LOGGING(pipelining) && f.smtp_in_pipelining_advertised)
{
g = string_catn(g, US" L", 2);
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (f.smtp_in_early_pipe_used)
g = string_catn(g, US"*", 1);
else if (f.smtp_in_early_pipe_advertised)
BOOL helo_verify :1;
BOOL helo_seen :1;
BOOL helo_accept_junk :1;
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
BOOL pipe_connect_acceptable :1;
#endif
BOOL rcpt_smtp_response_same :1;
}
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
static BOOL
pipeline_connect_sends(void)
{
/* Before we write the banner, check that there is no input pending, unless
this synchronisation check is disabled. */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
fl.pipe_connect_acceptable =
sender_host_address && verify_check_host(&pipe_connect_advertise_hosts) == OK;
/*XXX the ehlo-resp code does its own tls/nontls bit. Maybe subroutine that? */
smtp_printf("%s",
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
fl.pipe_connect_acceptable && pipeline_connect_sends(),
#else
FALSE,
#endif
switch(smtp_read_command(
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
!fl.pipe_connect_acceptable,
#else
TRUE,
host_build_sender_fullhost(); /* Rebuild */
break;
}
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
else if (!fl.pipe_connect_acceptable && !check_sync())
#else
else if (!check_sync())
sync_cmd_limit = NON_SYNC_CMD_PIPELINING;
f.smtp_in_pipelining_advertised = TRUE;
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (fl.pipe_connect_acceptable)
{
f.smtp_in_early_pipe_advertised = TRUE;
#ifndef DISABLE_TLS
if (tls_in.active.sock >= 0)
(void)tls_write(NULL, g->s, g->ptr,
-# ifdef EXPERIMENTAL_PIPE_CONNECT
+# ifdef SUPPORT_PIPE_CONNECT
fl.pipe_connect_acceptable && pipeline_connect_sends());
# else
FALSE);
f.dot_ends = TRUE;
DATA_BDAT: /* Common code for DATA and BDAT */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
fl.pipe_connect_acceptable = FALSE;
#endif
if (!discarded && recipients_count <= 0)
errno = 0; /* Ensure errno starts out zero */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (sx->pending_BANNER || sx->pending_EHLO)
{
int rc;
BOOL af_tcp_fastopen:1; /* delivery usefully used TCP Fast Open */
BOOL af_tcp_fastopen_data:1; /* delivery sent SMTP commands on TCP Fast Open */
BOOL af_pipelining:1; /* delivery used (traditional) pipelining */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
BOOL af_early_pipe:1; /* delivery used connect-time pipelining */
#endif
#ifndef DISABLE_PRDR
if ((more || corked))
{
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
int save_pool = store_pool;
store_pool = POOL_PERM;
#endif
corked = string_catn(corked, buff, len);
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
store_pool = save_pool;
#endif
#endif
{ "hosts_override", opt_bool,
(void *)offsetof(smtp_transport_options_block, hosts_override) },
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
{ "hosts_pipe_connect", opt_stringptr,
(void *)offsetof(smtp_transport_options_block, hosts_pipe_connect) },
#endif
.hosts_avoid_tls = NULL,
.hosts_verify_avoid_tls = NULL,
.hosts_avoid_pipelining = NULL,
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
.hosts_pipe_connect = NULL,
#endif
.hosts_avoid_esmtp = NULL,
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
static uschar *
ehlo_cache_key(const smtp_context * sx)
{
smtp_transport_options_block * ob = sx->conn_args.ob;
int yield = 0;
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
int rc;
if ((rc = smtp_reap_early_pipe(sx, &count)) != OK)
return rc == FAIL ? -4 : -5;
host_item * host = sx->conn_args.host; /* host to deliver to */
smtp_transport_options_block * ob = sx->conn_args.ob; /* transport options */
int require_auth = verify_check_given_host(CUSS &ob->hosts_require_auth, host);
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
unsigned short authbits = tls_out.active.sock >= 0
? sx->ehlo_resp.crypted_auths : sx->ehlo_resp.cleartext_auths;
#endif
if ( sx->esmtp
&&
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
sx->early_pipe_active ? authbits
:
#endif
uschar * names = NULL;
expand_nmax = -1; /* reset */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (!sx->early_pipe_active)
#endif
names = string_copyn(expand_nstring[1], expand_nlength[1]);
DEBUG(D_transport) debug_printf("scanning authentication mechanisms\n");
fail_reason = US"no common mechanisms were found";
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (sx->early_pipe_active)
{
/* Scan our authenticators (which support use by a client and were offered
&& pcre_exec(regex_SIZE, NULL, CS buf, bsize, 0, PCRE_EOPT, NULL, 0) < 0)
checks &= ~OPTION_SIZE;
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if ( checks & OPTION_EARLY_PIPE
&& pcre_exec(regex_EARLY_PIPE, NULL, CS buf, bsize, 0,
PCRE_EOPT, NULL, 0) < 0)
if (chunk_size > 0)
{
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
BOOL new_conn = !!(sx->outblock.conn_args);
#endif
if((cmd_count = smtp_write_command(sx,
) < 0) return ERROR;
if (flags & tc_chunk_last)
data_command = string_copy(big_buffer); /* Save for later error message */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
/* That command write could have been the one that made the connection.
Copy the fd from the client conn ctx (smtp transport specific) to the
generic transport ctx. */
case -5: errno = ERRNO_TLSFAILURE;
return DEFER;
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
case -4: /* non-2xx for pipelined banner or EHLO */
#endif
case -1: /* Timeout on RCPT */
sx->dane_required =
verify_check_given_host(CUSS &ob->hosts_require_dane, sx->conn_args.host) == OK;
#endif
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
sx->early_pipe_active = sx->early_pipe_ok = FALSE;
sx->ehlo_resp.cleartext_features = sx->ehlo_resp.crypted_features = 0;
sx->pending_BANNER = sx->pending_EHLO = FALSE;
sx->inblock.cctx = sx->outblock.cctx = &sx->cctx;
sx->avoid_option = sx->peer_offered = smtp_peer_options = 0;
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if ( verify_check_given_host(CUSS &ob->hosts_pipe_connect,
sx->conn_args.host) == OK)
if (!sx->smtps)
{
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (sx->early_pipe_active)
{
sx->pending_BANNER = TRUE; /* sync_responses() must eventually handle */
if (sx->esmtp)
{
if (smtp_write_command(sx,
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
sx->early_pipe_active ? SCMD_BUFFER :
#endif
SCMD_FLUSH,
goto SEND_FAILED;
sx->esmtp_sent = TRUE;
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (sx->early_pipe_active)
{
sx->pending_EHLO = TRUE;
DEBUG(D_transport)
debug_printf("not sending EHLO (host matches hosts_avoid_esmtp)\n");
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (!sx->early_pipe_active)
#endif
if (!sx->esmtp)
if (sx->esmtp || sx->lmtp)
{
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (!sx->early_pipe_active)
#endif
{
sx->peer_offered = ehlo_response(sx->buffer,
OPTION_TLS /* others checked later */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
| (sx->early_pipe_ok
? OPTION_IGNQ
| OPTION_CHUNKING | OPTION_PRDR | OPTION_DSN | OPTION_PIPE | OPTION_SIZE
)
#endif
);
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (sx->early_pipe_ok)
{
sx->ehlo_resp.cleartext_features = sx->peer_offered;
if (smtp_write_command(sx, SCMD_FLUSH, "STARTTLS\r\n") < 0)
goto SEND_FAILED;
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
/* If doing early-pipelining reap the banner and EHLO-response but leave
the response for the STARTTLS we just sent alone. */
goto SEND_QUIT;
}
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
/* For SMTPS there is no cleartext early-pipe; use the crypted permission bit.
We're unlikely to get the group sent and delivered before the server sends its
banner, but it's still worth sending as a group.
/* For SMTPS we need to wait for the initial OK response. */
if (sx->smtps)
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (sx->early_pipe_active)
{
sx->pending_BANNER = TRUE;
}
if (smtp_write_command(sx,
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
sx->early_pipe_active ? SCMD_BUFFER :
#endif
SCMD_FLUSH,
"%s %s\r\n", greeting_cmd, sx->helo_data) < 0)
goto SEND_FAILED;
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (sx->early_pipe_active)
sx->pending_EHLO = TRUE;
else
{
if (sx->esmtp || sx->lmtp)
{
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (!sx->early_pipe_active)
#endif
{
sx->peer_offered = ehlo_response(sx->buffer,
0 /* no TLS */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
| (sx->lmtp && ob->lmtp_ignore_quota ? OPTION_IGNQ : 0)
| OPTION_DSN | OPTION_PIPE | OPTION_SIZE
| OPTION_CHUNKING | OPTION_PRDR | OPTION_UTF8
| (ob->size_addition >= 0 ? OPTION_SIZE : 0)
#endif
);
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (tls_out.active.sock >= 0)
sx->ehlo_resp.crypted_features = sx->peer_offered;
#endif
DEBUG(D_transport) debug_printf("%susing DSN\n",
sx->peer_offered & OPTION_DSN ? "" : "not ");
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if ( sx->early_pipe_ok
&& !sx->early_pipe_active
&& tls_out.active.sock >= 0
case -2: return -2; /* non-MAIL read i/o error */
default: return -1; /* any MAIL error */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
case -4: return -1; /* non-2xx for pipelined banner or EHLO */
case -5: return -1; /* TLS first-read error */
#endif
case -1: goto END_OFF; /* Timeout on RCPT */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
case -5: /* TLS first-read error */
case -4: HDEBUG(D_transport)
debug_printf("failed reaping pipelined cmd responses\n");
case -1: goto END_OFF; /* Timeout on RCPT */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
case -5: /* TLS first-read error */
case -4: HDEBUG(D_transport)
debug_printf("failed reaping pipelined cmd responses\n");
if (tcp_out_fastopen >= TFO_USED_DATA) setflag(addr, af_tcp_fastopen_data);
}
if (sx.pipelining_used) setflag(addr, af_pipelining);
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
if (sx.early_pipe_active) setflag(addr, af_early_pipe);
#endif
#ifndef DISABLE_PRDR
else
{
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
/* If we were early-pipelinng and the actual EHLO response did not match
the cached value we assumed, we could have detected it and passed a
custom errno through to here. It would be nice to RSET and retry right
uschar *hosts_avoid_tls;
uschar *hosts_verify_avoid_tls;
uschar *hosts_avoid_pipelining;
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
uschar *hosts_pipe_connect;
#endif
uschar *hosts_avoid_esmtp;
BOOL smtps:1;
BOOL ok:1;
BOOL setting_up:1;
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
BOOL early_pipe_ok:1;
BOOL early_pipe_active:1;
#endif
#if !defined(DISABLE_TLS) && defined(SUPPORT_DANE)
BOOL dane_required:1;
#endif
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
BOOL pending_BANNER:1;
BOOL pending_EHLO:1;
#endif
uschar * smtp_greeting;
uschar * helo_response;
#endif
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifdef SUPPORT_PIPE_CONNECT
ehlo_resp_precis ehlo_resp;
#endif
# SUPPORT_PROXY
next if /host in hosts_proxy\?/;
+ # PIPE_CONNECT
+ next if / in (pipelining_connect_advertise_hosts|hosts_pipe_connect)?\? no /;
+
# Experimental_International
next if / in smtputf8_advertise_hosts\? no \(option unset\)/;
# TCP Fast Open
next if /^(ppppp )?setsockopt FASTOPEN: Network Error/;
- # Experimental_PIPE_CONNECT
- next if / in (pipelining_connect_advertise_hosts|hosts_pipe_connect)?\? no /;
-
# Environment cleaning
next if /\w+ in keep_environment\? (yes|no)/;
-support Experimental_PIPE_CONNECT
+support PIPE_CONNECT
-support Experimental_PIPE_CONNECT
+support PIPE_CONNECT
authenticator plaintext
-support Experimental_PIPE_CONNECT
+support PIPE_CONNECT
support TCP_Fast_Open
-support Experimental_PIPE_CONNECT
+support PIPE_CONNECT
support GnuTLS
-support Experimental_PIPE_CONNECT
+support PIPE_CONNECT
support OpenSSL
-support Experimental_PIPE_CONNECT
+support PIPE_CONNECT
support GnuTLS
authenticator plaintext
-support Experimental_PIPE_CONNECT
+support PIPE_CONNECT
support OpenSSL
authenticator plaintext
-support Experimental_PIPE_CONNECT
+support PIPE_CONNECT
support GnuTLS
support TCP_Fast_Open
-support Experimental_PIPE_CONNECT
+support PIPE_CONNECT
support OpenSSL
support TCP_Fast_Open