GnuTLS 3.6.7 cipher strings

[exim.git] / src / src / macros.h

diff --git a/src/src/macros.h b/src/src/macros.h
index fc3776c849212376331f7a804f964df89aeff0a3..f98d5e6bdf8b7e14854ab813b7f6809c0b988de4 100644 (file)
--- a/src/src/macros.h
+++ b/src/src/macros.h
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 

-/* Copyright (c) University of Cambridge 1995 - 2014 */
+/* Copyright (c) University of Cambridge 1995 - 2018 */

 /* See the file NOTICE for conditions of use and distribution. */
 
 
 /* See the file NOTICE for conditions of use and distribution. */
 
 


@@ -12,27 +12,31 @@ a string as a text string. This is sometimes useful for debugging output. */
 #define mac_string(s) # s
 #define mac_expanded_string(s) mac_string(s)
 
 #define mac_string(s) # s
 #define mac_expanded_string(s) mac_string(s)
 

+/* Number of elements of an array */
+#define nelem(arr) (sizeof(arr) / sizeof(*arr))
+
+/* Maximum of two items */
+#ifndef MAX
+# define MAX(a,b) ((a) > (b) ? (a) : (b))
+#endif
+

 
 /* When running in the test harness, the load average is fudged. */
 
 #define OS_GETLOADAVG() \
 
 /* When running in the test harness, the load average is fudged. */
 
 #define OS_GETLOADAVG() \

-  (running_in_test_harness? (test_harness_load_avg += 10) : os_getloadavg())
+  (f.running_in_test_harness? (test_harness_load_avg += 10) : os_getloadavg())

 
 
 
 

-/* The address_item structure has a word full of 1-bit flags. These macros
+/* The address_item structure has a struct full of 1-bit flags. These macros

 manipulate them. */
 
 manipulate them. */
 

-#define setflag(addr,flag)    addr->flags |= (flag)
-#define clearflag(addr,flag)  addr->flags &= ~(flag)
+#define setflag(addr, flagname)    addr->flags.flagname = TRUE
+#define clearflag(addr, flagname)  addr->flags.flagname = FALSE

 
 

-#define testflag(addr,flag)       ((addr->flags & (flag)) != 0)
-#define testflagsall(addr,flag)   ((addr->flags & (flag)) == (flag))
+#define testflag(addr, flagname)   (addr->flags.flagname)

 
 

-#define copyflag(addrnew,addrold,flag) \
-  addrnew->flags = (addrnew->flags & ~(flag)) | (addrold->flags & (flag))
-
-#define orflag(addrnew,addrold,flag) \
-  addrnew->flags |= addrold->flags & (flag)
+#define copyflag(addrnew, addrold, flagname) \
+  addrnew->flags.flagname = addrold->flags.flagname

 
 
 /* For almost all calls to convert things to printing characters, we want to
 
 
 /* For almost all calls to convert things to printing characters, we want to


@@ -81,7 +85,7 @@ as unsigned. */
 a no-op once an SSL session is in progress. */
 
 #ifdef SUPPORT_TLS
 a no-op once an SSL session is in progress. */
 
 #ifdef SUPPORT_TLS

-#define mac_smtp_fflush() if (tls_in.active < 0) fflush(smtp_out);
+#define mac_smtp_fflush() if (tls_in.active.sock < 0) fflush(smtp_out);

 #else
 #define mac_smtp_fflush() fflush(smtp_out);
 #endif
 #else
 #define mac_smtp_fflush() fflush(smtp_out);
 #endif


@@ -103,8 +107,15 @@ don't make the file descriptors two-way. */
 
 /* Debugging control */
 
 
 /* Debugging control */
 

-#define DEBUG(x)      if ((debug_selector & (x)) != 0)
-#define HDEBUG(x)     if (host_checking || (debug_selector & (x)) != 0)
+#define DEBUG(x)      if (debug_selector & (x))
+#define HDEBUG(x)     if (host_checking || (debug_selector & (x)))
+
+#define PTR_CHK(ptr) \
+do { \
+if ((void *)ptr > (void *)store_get(0)) \
+  debug_printf("BUG: ptr '%s' beyond arena at %s:%d\n", \
+               mac_expanded_string(ptr), __FUNCTION__, __LINE__); \
+} while(0)

 
 /* The default From: text for DSNs */
 
 
 /* The default From: text for DSNs */
 


@@ -149,13 +160,17 @@ into big_buffer_size and in some circumstances increased. It should be at least
 as long as the maximum path length. */
 
 #if defined PATH_MAX && PATH_MAX > 16384
 as long as the maximum path length. */
 
 #if defined PATH_MAX && PATH_MAX > 16384

-#define BIG_BUFFER_SIZE PATH_MAX
+# define BIG_BUFFER_SIZE PATH_MAX

 #elif defined MAXPATHLEN && MAXPATHLEN > 16384
 #elif defined MAXPATHLEN && MAXPATHLEN > 16384

-#define BIG_BUFFER_SIZE MAXPATHLEN
+# define BIG_BUFFER_SIZE MAXPATHLEN

 #else
 #else

-#define BIG_BUFFER_SIZE 16384
+# define BIG_BUFFER_SIZE 16384

 #endif
 
 #endif
 

+/* header size of pipe content
+   currently: char id, char subid, char[5] length */
+#define PIPE_HEADER_SIZE 7
+

 /* This limits the length of data returned by local_scan(). Because it is
 written on the spool, it gets read into big_buffer. */
 
 /* This limits the length of data returned by local_scan(). Because it is
 written on the spool, it gets read into big_buffer. */
 


@@ -180,7 +195,7 @@ record. */
 /* Wait this long before determining that a Proxy Protocol configured
 host isn't speaking the protocol, and so is disallowed. Can be moved to
 runtime configuration if per site settings become needed. */
 /* Wait this long before determining that a Proxy Protocol configured
 host isn't speaking the protocol, and so is disallowed. Can be moved to
 runtime configuration if per site settings become needed. */

-#ifdef EXPERIMENTAL_PROXY
+#ifdef SUPPORT_PROXY

 #define PROXY_NEGOTIATION_TIMEOUT_SEC 3
 #define PROXY_NEGOTIATION_TIMEOUT_USEC 0
 #endif
 #define PROXY_NEGOTIATION_TIMEOUT_SEC 3
 #define PROXY_NEGOTIATION_TIMEOUT_USEC 0
 #endif


@@ -209,9 +224,9 @@ enum { tod_log, tod_log_bare, tod_log_zone, tod_log_datestamp_daily,
 /* For identifying types of driver */
 
 enum {
 /* For identifying types of driver */
 
 enum {

-  DTYPE_NONE,
-  DTYPE_ROUTER,
-  DTYPE_TRANSPORT
+  EXIM_DTYPE_NONE,
+  EXIM_DTYPE_ROUTER,
+  EXIM_DTYPE_TRANSPORT

 };
 
 /* Error numbers for generating error messages when reading a message on the
 };
 
 /* Error numbers for generating error messages when reading a message on the


@@ -263,7 +278,9 @@ and some additional values are used only by non-driver functions.
 
 OK, FAIL, DEFER, ERROR, and FAIL_FORCED are also declared in local_scan.h for
 use in the local_scan() function and in ${dlfunc loaded functions. Do not
 
 OK, FAIL, DEFER, ERROR, and FAIL_FORCED are also declared in local_scan.h for
 use in the local_scan() function and in ${dlfunc loaded functions. Do not

-change them unilaterally. */
+change them unilaterally.
+
+Use rc_names[] for debug strings. */

 
 #define  OK            0    /* Successful match */
 #define  DEFER         1    /* Defer - some problem */
 
 #define  OK            0    /* Successful match */
 #define  DEFER         1    /* Defer - some problem */


@@ -306,52 +323,100 @@ for having to swallow the rest of an SMTP message is whether the value is
 #define END_NOTENDED   3    /* Message reading not yet ended */
 #define END_SIZE       4    /* Reading ended because message too big */
 #define END_WERROR     5    /* Write error while reading the message */
 #define END_NOTENDED   3    /* Message reading not yet ended */
 #define END_SIZE       4    /* Reading ended because message too big */
 #define END_WERROR     5    /* Write error while reading the message */

+#define END_PROTOCOL   6    /* Protocol error in CHUNKING sequence */
+
+/* result codes for bdat_getc() (which can also return EOF) */
+
+#define EOD (-2)
+#define ERR (-3)
+
+
+/* Bit masks for debug and log selectors */
+
+/* Assume words are 32 bits wide. Tiny waste of space on 64 bit
+platforms, but this ensures bit vectors always work the same way. */
+#define BITWORDSIZE 32
+
+/* This macro is for single-word bit vectors: the debug selector,
+and the first word of the log selector. */
+#define BIT(n) (1U << (n))
+
+/* And these are for multi-word vectors. */
+#define BITWORD(n) (      (n) / BITWORDSIZE)
+#define BITMASK(n) (1U << (n) % BITWORDSIZE)
+
+#define BIT_CLEAR(s,z,n) ((s)[BITWORD(n)] &= ~BITMASK(n))
+#define BIT_SET(s,z,n)   ((s)[BITWORD(n)] |=  BITMASK(n))
+#define BIT_TEST(s,z,n) (((s)[BITWORD(n)] &   BITMASK(n)) != 0)
+
+/* Used in globals.c for initializing bit_table structures. T will be either
+D or L corresponding to the debug and log selector bits declared below. */
+
+#define BIT_TABLE(T,name) { US #name, T##i_##name }

 
 

-/* Options bits for debugging; D_v and D_local_scan are also in local_scan.h */
-
-#define D_v                          0x00000001
-#define D_local_scan                 0x00000002
-
-#define D_acl                        0x00000004
-#define D_auth                       0x00000008
-#define D_deliver                    0x00000010
-#define D_dns                        0x00000020
-#define D_dnsbl                      0x00000040
-#define D_exec                       0x00000080
-#define D_expand                     0x00000100
-#define D_filter                     0x00000200
-#define D_hints_lookup               0x00000400
-#define D_host_lookup                0x00000800
-#define D_ident                      0x00001000
-#define D_interface                  0x00002000
-#define D_lists                      0x00004000
-#define D_load                       0x00008000
-#define D_lookup                     0x00010000
-#define D_memory                     0x00020000
-#define D_pid                        0x00040000
-#define D_process_info               0x00080000
-#define D_queue_run                  0x00100000
-#define D_receive                    0x00200000
-#define D_resolver                   0x00400000
-#define D_retry                      0x00800000
-#define D_rewrite                    0x01000000
-#define D_route                      0x02000000
-#define D_timestamp                  0x04000000
-#define D_tls                        0x08000000
-#define D_transport                  0x10000000
-#define D_uid                        0x20000000
-#define D_verify                     0x40000000
-
-/* The D_all value must always have all bits set, as it is recognized specially
-by the function that decodes debug and log selectors. This is to enable it to
-set all the bits in a multi-word selector. Debug doesn't use this yet, but we
-are getting close. In fact, we want to omit "memory" for -d+all, but can't
-handle this here. It is fudged externally. */
+/* IOTA allows us to keep an implicit sequential count, like a simple enum,
+but we can have sequentially numbered identifiers which are not declared
+sequentially. We use this for more compact declarations of bit indexes and
+masks, alternating between sequential bit index and corresponding mask. */
+
+#define IOTA(iota)      (__LINE__ - iota)
+#define IOTA_INIT(zero) (__LINE__ - zero + 1)
+
+/* Options bits for debugging. DEBUG_BIT() declares both a bit index and the
+corresponding mask. Di_all is a special value recognized by decode_bits().
+These must match the debug_options table in globals.c .
+
+Exim's code assumes in a number of places that the debug_selector is one
+word, and this is exposed in the local_scan ABI. The D_v and D_local_scan bit
+masks are part of the local_scan API so are #defined in local_scan.h */
+
+#define DEBUG_BIT(name) Di_##name = IOTA(Di_iota), D_##name = BIT(Di_##name)
+
+enum {
+  Di_all        = -1,
+  Di_v          = 0,
+  Di_local_scan = 1,
+
+  Di_iota = IOTA_INIT(2),
+  DEBUG_BIT(acl),              /* 2 */
+  DEBUG_BIT(auth),
+  DEBUG_BIT(deliver),
+  DEBUG_BIT(dns),
+  DEBUG_BIT(dnsbl),
+  DEBUG_BIT(exec),             /* 7 */
+  DEBUG_BIT(expand),
+  DEBUG_BIT(filter),
+  DEBUG_BIT(hints_lookup),
+  DEBUG_BIT(host_lookup),
+  DEBUG_BIT(ident),
+  DEBUG_BIT(interface),
+  DEBUG_BIT(lists),
+  DEBUG_BIT(load),             /* 15 */
+  DEBUG_BIT(lookup),
+  DEBUG_BIT(memory),
+  DEBUG_BIT(noutf8),
+  DEBUG_BIT(pid),
+  DEBUG_BIT(process_info),
+  DEBUG_BIT(queue_run),
+  DEBUG_BIT(receive),
+  DEBUG_BIT(resolver),         /* 23 */
+  DEBUG_BIT(retry),
+  DEBUG_BIT(rewrite),
+  DEBUG_BIT(route),
+  DEBUG_BIT(timestamp),
+  DEBUG_BIT(tls),
+  DEBUG_BIT(transport),
+  DEBUG_BIT(uid),
+  DEBUG_BIT(verify),           /* 31 */
+};
+
+/* Multi-bit debug masks */

 
 #define D_all                        0xffffffff
 
 #define D_any                        (D_all & \
                                        ~(D_v           | \
 
 #define D_all                        0xffffffff
 
 #define D_any                        (D_all & \
                                        ~(D_v           | \

+                                        D_noutf8      | \

                                          D_pid         | \
                                          D_timestamp)  )
 
                                          D_pid         | \
                                          D_timestamp)  )
 


@@ -362,87 +427,85 @@ handle this here. It is fudged externally. */
                                          D_load        | \
                                          D_local_scan  | \
                                          D_memory      | \
                                          D_load        | \
                                          D_local_scan  | \
                                          D_memory      | \

+                                        D_noutf8      | \

                                          D_pid         | \
                                          D_timestamp   | \
                                          D_resolver))
 
                                          D_pid         | \
                                          D_timestamp   | \
                                          D_resolver))
 

-/* Options bits for logging. Those that will end up in log_write_selector have
-values < 0x80000000. They can be used in calls to log_write(). The others have
-values > 0x80000000 and are put into log_extra_selector (without the top bit).
-These are only ever tested independently. "All" is a magic value that is used
-only in the name table to set all options in both bit maps. */
-
-/* The L_all value must always have all bits set, as it is recognized specially
-by the function that decodes debug and log selectors. This is to enable it to
-set all the bits in a multi-word selector. */
-
-#define L_all                          0xffffffff
-
-#define L_address_rewrite              0x00000001
-#define L_all_parents                  0x00000002
-#define L_connection_reject            0x00000004
-#define L_delay_delivery               0x00000008
-#define L_dnslist_defer                0x00000010
-#define L_etrn                         0x00000020
-#define L_host_lookup_failed           0x00000040
-#define L_lost_incoming_connection     0x00000080
-#define L_queue_run                    0x00000100
-#define L_retry_defer                  0x00000200
-#define L_size_reject                  0x00000400
-#define L_skip_delivery                0x00000800
-#define L_smtp_connection              0x00001000
-#define L_smtp_incomplete_transaction  0x00002000
-#define L_smtp_protocol_error          0x00004000
-#define L_smtp_syntax_error            0x00008000
-
-#define LX_acl_warn_skipped            0x80000001
-#define LX_arguments                   0x80000002
-#define LX_deliver_time                0x80000004
-#define LX_delivery_size               0x80000008
-#define LX_ident_timeout               0x80000010
-#define LX_incoming_interface          0x80000020
-#define LX_incoming_port               0x80000040
-#define LX_outgoing_port               0x80000080
-#define LX_pid                         0x80000100
-#define LX_queue_time                  0x80000200
-#define LX_queue_time_overall          0x80000400
-#define LX_received_sender             0x80000800
-#define LX_received_recipients         0x80001000
-#define LX_rejected_header             0x80002000
-#define LX_return_path_on_delivery     0x80004000
-#define LX_sender_on_delivery          0x80008000
-#define LX_sender_verify_fail          0x80010000
-#define LX_smtp_confirmation           0x80020000
-#define LX_smtp_no_mail                0x80040000
-#define LX_subject                     0x80080000
-#define LX_tls_certificate_verified    0x80100000
-#define LX_tls_cipher                  0x80200000
-#define LX_tls_peerdn                  0x80400000
-#define LX_tls_sni                     0x80800000
-#define LX_unknown_in_list             0x81000000
-#define LX_8bitmime                    0x82000000
-#define LX_smtp_mailauth               0x84000000
-#define LX_proxy                       0x88000000
-
-#define L_default     (L_connection_reject        | \
-                       L_delay_delivery           | \
-                       L_dnslist_defer            | \
-                       L_etrn                     | \
-                       L_host_lookup_failed       | \
-                       L_lost_incoming_connection | \
-                       L_queue_run                | \
-                       L_retry_defer              | \
-                       L_size_reject              | \
-                       L_skip_delivery)
-
-#define LX_default   ((LX_acl_warn_skipped        | \
-                       LX_rejected_header         | \
-                       LX_sender_verify_fail      | \
-                       LX_smtp_confirmation       | \
-                       LX_tls_cipher) & 0x7fffffff)
+/* Options bits for logging. Those that have values < BITWORDSIZE can be used
+in calls to log_write(). The others are put into later words in log_selector
+and are only ever tested independently, so they do not need bit mask
+declarations. The Li_all value is recognized specially by decode_bits(). */
+
+#define LOG_BIT(name) Li_##name = IOTA(Li_iota), L_##name = BIT(Li_##name)
+
+enum {
+  Li_all = -1,
+
+  Li_iota = IOTA_INIT(0),
+  LOG_BIT(address_rewrite),
+  LOG_BIT(all_parents),
+  LOG_BIT(connection_reject),
+  LOG_BIT(delay_delivery),
+  LOG_BIT(dnslist_defer),
+  LOG_BIT(etrn),
+  LOG_BIT(host_lookup_failed),
+  LOG_BIT(lost_incoming_connection),
+  LOG_BIT(queue_run),
+  LOG_BIT(retry_defer),
+  LOG_BIT(size_reject),
+  LOG_BIT(skip_delivery),
+  LOG_BIT(smtp_connection),
+  LOG_BIT(smtp_incomplete_transaction),
+  LOG_BIT(smtp_protocol_error),
+  LOG_BIT(smtp_syntax_error),
+
+  Li_8bitmime = BITWORDSIZE,
+  Li_acl_warn_skipped,
+  Li_arguments,
+  Li_deliver_time,
+  Li_delivery_size,
+  Li_dkim,
+  Li_dkim_verbose,
+  Li_dnssec,
+  Li_ident_timeout,
+  Li_incoming_interface,
+  Li_incoming_port,
+  Li_millisec,
+  Li_msg_id,
+  Li_msg_id_created,
+  Li_outgoing_interface,
+  Li_outgoing_port,
+  Li_pid,
+  Li_pipelining,
+  Li_proxy,
+  Li_queue_time,
+  Li_queue_time_overall,
+  Li_receive_time,
+  Li_received_sender,
+  Li_received_recipients,
+  Li_rejected_header,
+  Li_return_path_on_delivery,
+  Li_sender_on_delivery,
+  Li_sender_verify_fail,
+  Li_smtp_confirmation,
+  Li_smtp_mailauth,
+  Li_smtp_no_mail,
+  Li_subject,
+  Li_tls_certificate_verified,
+  Li_tls_cipher,
+  Li_tls_peerdn,
+  Li_tls_sni,
+  Li_unknown_in_list,
+
+  log_selector_size = BITWORD(Li_unknown_in_list) + 1
+};
+
+#define LOGGING(opt) BIT_TEST(log_selector, log_selector_size, Li_##opt)

 
 /* Private error numbers for delivery failures, set negative so as not
 
 /* Private error numbers for delivery failures, set negative so as not

-to conflict with system errno values. */
+to conflict with system errno values.  Take care to maintain the string
+table exim_errstrings[] in log.c */

 
 #define ERRNO_UNKNOWNERROR    (-1)
 #define ERRNO_USERSLASH       (-2)
 
 #define ERRNO_UNKNOWNERROR    (-1)
 #define ERRNO_USERSLASH       (-2)


@@ -475,7 +538,7 @@ to conflict with system errno values. */
 #define ERRNO_UIDFAIL        (-29)   /* Failed to get uid */
 #define ERRNO_BADTRANSPORT   (-30)   /* Unset or non-existent transport */
 #define ERRNO_MBXLENGTH      (-31)   /* MBX length mismatch */
 #define ERRNO_UIDFAIL        (-29)   /* Failed to get uid */
 #define ERRNO_BADTRANSPORT   (-30)   /* Unset or non-existent transport */
 #define ERRNO_MBXLENGTH      (-31)   /* MBX length mismatch */

-#define ERRNO_UNKNOWNHOST    (-32)   /* Lookup failed in smtp transport */
+#define ERRNO_UNKNOWNHOST    (-32)   /* Lookup failed routing or in smtp tpt */

 #define ERRNO_FORMATUNKNOWN  (-33)   /* Can't match format in appendfile */
 #define ERRNO_BADCREATE      (-34)   /* Creation outside home in appendfile */
 #define ERRNO_LISTDEFER      (-35)   /* Can't check a list; lookup defer */
 #define ERRNO_FORMATUNKNOWN  (-33)   /* Can't match format in appendfile */
 #define ERRNO_BADCREATE      (-34)   /* Creation outside home in appendfile */
 #define ERRNO_LISTDEFER      (-35)   /* Can't check a list; lookup defer */


@@ -491,15 +554,27 @@ to conflict with system errno values. */
 #define ERRNO_MAIL4XX        (-45)   /* MAIL gave 4xx error */
 #define ERRNO_DATA4XX        (-46)   /* DATA gave 4xx error */
 #define ERRNO_PROXYFAIL      (-47)   /* Negotiation failed for proxy configured host */
 #define ERRNO_MAIL4XX        (-45)   /* MAIL gave 4xx error */
 #define ERRNO_DATA4XX        (-46)   /* DATA gave 4xx error */
 #define ERRNO_PROXYFAIL      (-47)   /* Negotiation failed for proxy configured host */

+#define ERRNO_AUTHPROB       (-48)   /* Authenticator "other" failure */
+
+#ifdef SUPPORT_I18N
+# define ERRNO_UTF8_FWD      (-49)   /* target not supporting SMTPUTF8 */
+#endif
+                               /* -50 free for re-use */

 
 /* These must be last, so all retry deferments can easily be identified */
 
 #define ERRNO_RETRY_BASE     (-51)   /* Base to test against */
 #define ERRNO_RRETRY         (-51)   /* Not time for routing */
 
 /* These must be last, so all retry deferments can easily be identified */
 
 #define ERRNO_RETRY_BASE     (-51)   /* Base to test against */
 #define ERRNO_RRETRY         (-51)   /* Not time for routing */

+
+#define ERRNO_WARN_BASE      (-52)   /* Base to test against */

 #define ERRNO_LRETRY         (-52)   /* Not time for local delivery */
 #define ERRNO_HRETRY         (-53)   /* Not time for any remote host */
 #define ERRNO_LOCAL_ONLY     (-54)   /* Local-only delivery */
 #define ERRNO_QUEUE_DOMAIN   (-55)   /* Domain in queue_domains */
 #define ERRNO_LRETRY         (-52)   /* Not time for local delivery */
 #define ERRNO_HRETRY         (-53)   /* Not time for any remote host */
 #define ERRNO_LOCAL_ONLY     (-54)   /* Local-only delivery */
 #define ERRNO_QUEUE_DOMAIN   (-55)   /* Domain in queue_domains */

+#define ERRNO_TRETRY         (-56)   /* Transport concurrency limit */
+#define ERRNO_EVENT         (-57)   /* Event processing request alternate response */
+
+

 
 /* Special actions to take after failure or deferment. */
 
 
 /* Special actions to take after failure or deferment. */
 


@@ -623,7 +698,7 @@ can be easily tested as a group. That is the only use of opt_bool_last. */
 enum { opt_bit = 32, opt_bool_verify, opt_bool_set, opt_expand_bool,
   opt_bool_last,
   opt_rewrite, opt_timelist, opt_uid, opt_gid, opt_uidlist, opt_gidlist,
 enum { opt_bit = 32, opt_bool_verify, opt_bool_set, opt_expand_bool,
   opt_bool_last,
   opt_rewrite, opt_timelist, opt_uid, opt_gid, opt_uidlist, opt_gidlist,

-  opt_expand_uid, opt_expand_gid, opt_void };
+  opt_expand_uid, opt_expand_gid, opt_func, opt_void };

 
 /* There's a high-ish bit which is used to flag duplicate options, kept
 for compatibility, which shouldn't be output. Also used for hidden options
 
 /* There's a high-ish bit which is used to flag duplicate options, kept
 for compatibility, which shouldn't be output. Also used for hidden options


@@ -659,7 +734,8 @@ enum { v_none, v_sender, v_recipient, v_expn };
 #define vopt_callout_no_cache     0x0040   /* disable callout cache */
 #define vopt_callout_recipsender  0x0080   /* use real sender to verify recip */
 #define vopt_callout_recippmaster 0x0100   /* use postmaster to verify recip */
 #define vopt_callout_no_cache     0x0040   /* disable callout cache */
 #define vopt_callout_recipsender  0x0080   /* use real sender to verify recip */
 #define vopt_callout_recippmaster 0x0100   /* use postmaster to verify recip */

-#define vopt_success_on_redirect  0x0200
+#define vopt_callout_hold        0x0200   /* lazy close connection */
+#define vopt_success_on_redirect  0x0400

 
 /* Values for fields in callout cache records */
 
 
 /* Values for fields in callout cache records */
 


@@ -682,11 +758,17 @@ enum { hstatus_unknown, hstatus_usable, hstatus_unusable,
 
 /* Reasons why a host is unusable (for clearer log messages) */
 
 
 /* Reasons why a host is unusable (for clearer log messages) */
 

-enum { hwhy_unknown, hwhy_retry, hwhy_failed, hwhy_deferred, hwhy_ignored };
+enum { hwhy_unknown, hwhy_retry, hwhy_insecure, hwhy_failed, hwhy_deferred,
+       hwhy_ignored };

 
 /* Domain lookup types for routers */
 
 
 /* Domain lookup types for routers */
 

-enum { lk_default, lk_byname, lk_bydns };
+#define LK_DEFAULT     BIT(0)
+#define LK_BYNAME      BIT(1)
+#define LK_BYDNS       BIT(2)  /* those 3 should be mutually exclusive */
+
+#define LK_IPV4_ONLY   BIT(3)
+#define LK_IPV4_PREFER BIT(4)

 
 /* Values for the self_code fields */
 
 
 /* Values for the self_code fields */
 


@@ -737,7 +819,8 @@ most recent SMTP commands. Must be kept in step with the list of names in
 smtp_in.c that is used for creating the smtp_no_mail logging action. SCH_NONE
 is "empty". */
 
 smtp_in.c that is used for creating the smtp_no_mail logging action. SCH_NONE
 is "empty". */
 

-enum { SCH_NONE, SCH_AUTH, SCH_DATA, SCH_EHLO, SCH_ETRN, SCH_EXPN, SCH_HELO,
+enum { SCH_NONE, SCH_AUTH, SCH_DATA, SCH_BDAT,
+       SCH_EHLO, SCH_ETRN, SCH_EXPN, SCH_HELO,

        SCH_HELP, SCH_MAIL, SCH_NOOP, SCH_QUIT, SCH_RCPT, SCH_RSET, SCH_STARTTLS,
        SCH_VRFY };
 
        SCH_HELP, SCH_MAIL, SCH_NOOP, SCH_QUIT, SCH_RCPT, SCH_RSET, SCH_STARTTLS,
        SCH_VRFY };
 


@@ -746,6 +829,7 @@ enum { SCH_NONE, SCH_AUTH, SCH_DATA, SCH_EHLO, SCH_ETRN, SCH_EXPN, SCH_HELO,
 enum {
   HOST_FIND_FAILED,     /* failed to find the host */
   HOST_FIND_AGAIN,      /* could not resolve at this time */
 enum {
   HOST_FIND_FAILED,     /* failed to find the host */
   HOST_FIND_AGAIN,      /* could not resolve at this time */

+  HOST_FIND_SECURITY,   /* dnssec required but not acheived */

   HOST_FOUND,           /* found host */
   HOST_FOUND_LOCAL,     /* found, but MX points to local host */
   HOST_IGNORED          /* found but ignored - used internally only */
   HOST_FOUND,           /* found host */
   HOST_FOUND_LOCAL,     /* found, but MX points to local host */
   HOST_IGNORED          /* found but ignored - used internally only */


@@ -753,11 +837,14 @@ enum {
 
 /* Flags for host_find_bydns() */
 
 
 /* Flags for host_find_bydns() */
 

-#define HOST_FIND_BY_SRV          0x0001
-#define HOST_FIND_BY_MX           0x0002
-#define HOST_FIND_BY_A            0x0004
-#define HOST_FIND_QUALIFY_SINGLE  0x0008
-#define HOST_FIND_SEARCH_PARENTS  0x0010
+#define HOST_FIND_BY_SRV          BIT(0)
+#define HOST_FIND_BY_MX           BIT(1)
+#define HOST_FIND_BY_A            BIT(2)
+#define HOST_FIND_BY_AAAA         BIT(3)
+#define HOST_FIND_QUALIFY_SINGLE  BIT(4)
+#define HOST_FIND_SEARCH_PARENTS  BIT(5)
+#define HOST_FIND_IPV4_FIRST     BIT(6)
+#define HOST_FIND_IPV4_ONLY      BIT(7)

 
 /* Actions applied to specific messages. */
 
 
 /* Actions applied to specific messages. */
 


@@ -783,10 +870,43 @@ enum {
 #define topt_add_delivery_date  0x002
 #define topt_add_envelope_to    0x004
 #define topt_use_crlf           0x008  /* Terminate lines with CRLF */
 #define topt_add_delivery_date  0x002
 #define topt_add_envelope_to    0x004
 #define topt_use_crlf           0x008  /* Terminate lines with CRLF */

-#define topt_end_dot            0x010  /* Send terminting dot line */
+#define topt_end_dot            0x010  /* Send terminating dot line */

 #define topt_no_headers         0x020  /* Omit headers */
 #define topt_no_body            0x040  /* Omit body */
 #define topt_escape_headers     0x080  /* Apply escape check to headers */
 #define topt_no_headers         0x020  /* Omit headers */
 #define topt_no_body            0x040  /* Omit body */
 #define topt_escape_headers     0x080  /* Apply escape check to headers */

+#define topt_use_bdat          0x100  /* prepend chunks with RFC3030 BDAT header */
+#define topt_output_string     0x200  /* create string rather than write to fd */
+#define topt_continuation      0x400  /* do not reset buffer */
+#define topt_not_socket                0x800  /* cannot do socket-only syscalls */
+
+/* Options for smtp_write_command */
+
+enum { 
+  SCMD_FLUSH = 0,      /* write to kernel */
+  SCMD_MORE,           /* write to kernel, but likely more soon */
+  SCMD_BUFFER          /* stash in application cmd output buffer */
+};
+
+/* Flags for recipient_block, used in DSN support */
+
+#define rf_dsnlasthop           0x01  /* Do not propagate DSN any further */
+#define rf_notify_never         0x02  /* NOTIFY= settings */
+#define rf_notify_success       0x04
+#define rf_notify_failure       0x08
+#define rf_notify_delay         0x10
+
+#define rf_dsnflags  (rf_notify_never | rf_notify_success | \
+                      rf_notify_failure | rf_notify_delay)
+
+/* DSN RET types */
+
+#define dsn_ret_full            1
+#define dsn_ret_hdrs            2
+
+#define dsn_support_unknown     0
+#define dsn_support_yes         1
+#define dsn_support_no          2
+

 
 /* Codes for the host_find_failed and host_all_ignored options. */
 
 
 /* Codes for the host_find_failed and host_all_ignored options. */
 


@@ -826,7 +946,7 @@ enum { ACL_WHERE_RCPT,       /* Some controls are for RCPT only */
        ACL_WHERE_MIME,       /* ) implemented by <= WHERE_NOTSMTP           */
        ACL_WHERE_DKIM,       /* )                                           */
        ACL_WHERE_DATA,       /* )                                           */
        ACL_WHERE_MIME,       /* ) implemented by <= WHERE_NOTSMTP           */
        ACL_WHERE_DKIM,       /* )                                           */
        ACL_WHERE_DATA,       /* )                                           */

-#ifdef EXPERIMENTAL_PRDR
+#ifndef DISABLE_PRDR

        ACL_WHERE_PRDR,       /* )                                           */
 #endif
        ACL_WHERE_NOTSMTP,    /* )                                           */
        ACL_WHERE_PRDR,       /* )                                           */
 #endif
        ACL_WHERE_NOTSMTP,    /* )                                           */


@@ -847,6 +967,31 @@ enum { ACL_WHERE_RCPT,       /* Some controls are for RCPT only */
        ACL_WHERE_UNKNOWN     /* Currently used by a ${acl:name} expansion */
      };
 
        ACL_WHERE_UNKNOWN     /* Currently used by a ${acl:name} expansion */
      };
 

+#define ACL_BIT_RCPT           BIT(ACL_WHERE_RCPT)
+#define ACL_BIT_MAIL           BIT(ACL_WHERE_MAIL)
+#define ACL_BIT_PREDATA                BIT(ACL_WHERE_PREDATA)
+#define ACL_BIT_MIME           BIT(ACL_WHERE_MIME)
+#define ACL_BIT_DKIM           BIT(ACL_WHERE_DKIM)
+#define ACL_BIT_DATA           BIT(ACL_WHERE_DATA)
+#ifndef DISABLE_PRDR
+# define ACL_BIT_PRDR          BIT(ACL_WHERE_PRDR)
+#endif
+#define ACL_BIT_NOTSMTP                BIT(ACL_WHERE_NOTSMTP)
+#define ACL_BIT_AUTH           BIT(ACL_WHERE_AUTH)
+#define ACL_BIT_CONNECT                BIT(ACL_WHERE_CONNECT)
+#define ACL_BIT_ETRN           BIT(ACL_WHERE_ETRN)
+#define ACL_BIT_EXPN           BIT(ACL_WHERE_EXPN)
+#define ACL_BIT_HELO           BIT(ACL_WHERE_HELO)
+#define ACL_BIT_MAILAUTH       BIT(ACL_WHERE_MAILAUTH)
+#define ACL_BIT_NOTSMTP_START  BIT(ACL_WHERE_NOTSMTP_START)
+#define ACL_BIT_NOTQUIT                BIT(ACL_WHERE_NOTQUIT)
+#define ACL_BIT_QUIT           BIT(ACL_WHERE_QUIT)
+#define ACL_BIT_STARTTLS       BIT(ACL_WHERE_STARTTLS)
+#define ACL_BIT_VRFY           BIT(ACL_WHERE_VRFY)
+#define ACL_BIT_DELIVERY       BIT(ACL_WHERE_DELIVERY)
+#define ACL_BIT_UNKNOWN                BIT(ACL_WHERE_UNKNOWN)
+
+

 /* Situations for spool_write_header() */
 
 enum { SW_RECEIVING, SW_DELIVERING, SW_MODIFYING };
 /* Situations for spool_write_header() */
 
 enum { SW_RECEIVING, SW_DELIVERING, SW_MODIFYING };


@@ -872,4 +1017,65 @@ explicit port number. */
 
 enum { FILTER_UNSET, FILTER_FORWARD, FILTER_EXIM, FILTER_SIEVE };
 
 
 enum { FILTER_UNSET, FILTER_FORWARD, FILTER_EXIM, FILTER_SIEVE };
 

+/* Codes for ESMTP facilities offered by peer */
+
+#define OPTION_TLS             BIT(0)
+#define OPTION_IGNQ            BIT(1)
+#define OPTION_PRDR            BIT(2)
+#define OPTION_UTF8            BIT(3)
+#define OPTION_DSN             BIT(4)
+#define OPTION_PIPE            BIT(5)
+#define OPTION_SIZE            BIT(6)
+#define OPTION_CHUNKING                BIT(7)
+#define OPTION_EARLY_PIPE      BIT(8)
+
+/* Argument for *_getc */
+
+#define GETC_BUFFER_UNLIMITED  UINT_MAX
+
+/* UTF-8 chars for line-drawing */
+
+#define UTF8_DOWN_RIGHT                "\xE2\x94\x8c"
+#define UTF8_HORIZ             "\xE2\x94\x80"
+#define UTF8_VERT_RIGHT                "\xE2\x94\x9C"
+#define UTF8_UP_RIGHT          "\xE2\x94\x94"
+#define UTF8_VERT_2DASH                "\xE2\x95\x8E"
+
+
+/* Options on tls_close */
+#define TLS_NO_SHUTDOWN                0
+#define TLS_SHUTDOWN_NOWAIT    1
+#define TLS_SHUTDOWN_WAIT      2
+
+
+#ifdef COMPILE_UTILITY
+# define ALARM(seconds) alarm(seconds);
+# define ALARM_CLR(seconds) alarm(seconds);
+#else
+/* For debugging of odd alarm-signal problems, stash caller info while the
+alarm is active.  Clear it down on cancelling the alarm so we can tell there
+should not be one active. */
+
+# define ALARM(seconds) \
+    debug_selector & D_any \
+    ? (sigalarm_setter = CUS __FUNCTION__, alarm(seconds)) : alarm(seconds);
+# define ALARM_CLR(seconds) \
+    debug_selector & D_any \
+    ? (sigalarm_setter = NULL, alarm(seconds)) : alarm(seconds);
+#endif
+
+#define AUTHS_REGEX US"\\n250[\\s\\-]AUTH\\s+([\\-\\w \\t]+)(?:\\n|$)"
+
+#define EARLY_PIPE_FEATURE_NAME "X_PIPE_CONNECT"
+#define EARLY_PIPE_FEATURE_LEN  14
+
+
+/* Flags for auth_client_item() */
+
+#define AUTH_ITEM_FIRST        BIT(0)
+#define AUTH_ITEM_LAST BIT(1)
+#define AUTH_ITEM_IGN64        BIT(2)
+
+
+

 /* End of macros.h */
 /* End of macros.h */