1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2018 */
6 /* See the file NOTICE for conditions of use and distribution. */
8 #define DELIVER_BUFFER_SIZE 4096
11 #define PENDING_DEFER (PENDING + DEFER)
12 #define PENDING_OK (PENDING + OK)
15 /* Private structure for the private options and other private data. */
19 uschar *fallback_hosts;
21 host_item *fallback_hostlist;
22 uschar *authenticated_sender;
28 uschar *serialize_hosts;
29 uschar *hosts_try_auth;
30 uschar *hosts_require_auth;
31 uschar *hosts_try_chunking;
33 uschar *hosts_try_dane;
34 uschar *hosts_require_dane;
35 uschar *dane_require_tls_ciphers;
37 uschar *hosts_try_fastopen;
39 uschar *hosts_try_prdr;
42 uschar *hosts_request_ocsp;
43 uschar *hosts_require_ocsp;
45 uschar *hosts_require_tls;
46 uschar *hosts_avoid_tls;
47 uschar *hosts_verify_avoid_tls;
48 uschar *hosts_avoid_pipelining;
49 uschar *hosts_avoid_esmtp;
51 uschar *hosts_nopass_tls;
52 uschar *hosts_noproxy_tls;
60 int hosts_max_try_hardlimit;
61 BOOL address_retry_include_sender;
63 BOOL authenticated_sender_force;
65 BOOL dns_qualify_single;
66 BOOL dns_search_parents;
67 dnssec_domains dnssec;
68 BOOL delay_after_cutoff;
72 BOOL lmtp_ignore_quota;
73 uschar *expand_retry_include_ip_address;
74 BOOL retry_include_ip_address;
79 uschar *tls_certificate;
81 uschar *tls_privatekey;
82 uschar *tls_require_ciphers;
84 uschar *tls_verify_certificates;
86 BOOL tls_tempfail_tryclear;
87 uschar *tls_verify_hosts;
88 uschar *tls_try_verify_hosts;
89 uschar *tls_verify_cert_hostnames;
92 uschar *utf8_downconvert;
97 #ifdef EXPERIMENTAL_ARC
100 } smtp_transport_options_block;
102 /* smtp connect context */
105 address_item * addrlist;
124 BOOL dsn_all_lasthop:1;
125 #if defined(SUPPORT_TLS) && defined(SUPPORT_DANE)
127 BOOL dane_required:1;
132 BOOL completed_addr:1;
139 unsigned peer_offered;
140 unsigned avoid_option;
143 #ifdef EXPERIMENTAL_DSN_INFO
144 uschar * smtp_greeting;
145 uschar * helo_response;
148 address_item * first_addr;
149 address_item * next_addr;
150 address_item * sync_addr;
152 client_conn_ctx cctx;
153 smtp_inblock inblock;
154 smtp_outblock outblock;
155 uschar buffer[DELIVER_BUFFER_SIZE];
156 uschar inbuffer[4096];
157 uschar outbuffer[4096];
159 transport_instance * tblock;
160 smtp_transport_options_block * ob;
163 extern int smtp_setup_conn(smtp_context *, BOOL);
164 extern int smtp_write_mail_and_rcpt_cmds(smtp_context *, int *);
167 /* Data for reading the private options. */
169 extern optionlist smtp_transport_options[];
170 extern int smtp_transport_options_count;
172 /* Block containing default values. */
174 extern smtp_transport_options_block smtp_transport_option_defaults;
176 /* The main, init, and closedown entry points for the transport */
178 extern BOOL smtp_transport_entry(transport_instance *, address_item *);
179 extern void smtp_transport_init(transport_instance *);
180 extern void smtp_transport_closedown(transport_instance *);
184 extern int smtp_auth(uschar *, unsigned, address_item *, host_item *,
185 smtp_transport_options_block *, BOOL,
186 smtp_inblock *, smtp_outblock *);
187 extern BOOL smtp_mail_auth_str(uschar *, unsigned,
188 address_item *, smtp_transport_options_block *);
191 extern int socks_sock_connect(host_item *, int, int, uschar *,
192 transport_instance *, int);
195 /* End of transports/smtp.h */