summaryrefslogtreecommitdiffstats
path: root/src/transports/smtp.h
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--src/transports/smtp.h209
1 files changed, 209 insertions, 0 deletions
diff --git a/src/transports/smtp.h b/src/transports/smtp.h
new file mode 100644
index 0000000..213bca1
--- /dev/null
+++ b/src/transports/smtp.h
@@ -0,0 +1,209 @@
+/*************************************************
+* Exim - an Internet mail transport agent *
+*************************************************/
+
+/* Copyright (c) University of Cambridge 1995 - 2018 */
+/* Copyright (c) The Exim Maintainers 2020 */
+/* See the file NOTICE for conditions of use and distribution. */
+
+#define DELIVER_BUFFER_SIZE 4096
+
+#define PENDING 256
+#define PENDING_DEFER (PENDING + DEFER)
+#define PENDING_OK (PENDING + OK)
+
+
+/* Private structure for the private options and other private data. */
+
+typedef struct {
+ uschar *hosts;
+ uschar *fallback_hosts;
+ host_item *hostlist;
+ host_item *fallback_hostlist;
+ uschar *authenticated_sender;
+ uschar *helo_data;
+ uschar *interface;
+ uschar *port;
+ uschar *protocol;
+ uschar *dscp;
+ uschar *serialize_hosts;
+ uschar *hosts_try_auth;
+ uschar *hosts_require_auth;
+ uschar *hosts_try_chunking;
+#ifdef SUPPORT_DANE
+ uschar *hosts_try_dane;
+ uschar *hosts_require_dane;
+ uschar *dane_require_tls_ciphers;
+#endif
+ uschar *hosts_try_fastopen;
+#ifndef DISABLE_PRDR
+ uschar *hosts_try_prdr;
+#endif
+#ifndef DISABLE_OCSP
+ uschar *hosts_request_ocsp;
+ uschar *hosts_require_ocsp;
+#endif
+ uschar *hosts_require_tls;
+ uschar *hosts_avoid_tls;
+ uschar *hosts_verify_avoid_tls;
+ uschar *hosts_avoid_pipelining;
+#ifndef DISABLE_PIPE_CONNECT
+ uschar *hosts_pipe_connect;
+#endif
+ uschar *hosts_avoid_esmtp;
+#ifndef DISABLE_TLS
+ uschar *hosts_nopass_tls;
+ uschar *hosts_noproxy_tls;
+#endif
+ int command_timeout;
+ int connect_timeout;
+ int data_timeout;
+ int final_timeout;
+ int size_addition;
+ int hosts_max_try;
+ int hosts_max_try_hardlimit;
+ BOOL address_retry_include_sender;
+ BOOL allow_localhost;
+ BOOL authenticated_sender_force;
+ BOOL gethostbyname;
+ BOOL dns_qualify_single;
+ BOOL dns_search_parents;
+ dnssec_domains dnssec;
+ BOOL delay_after_cutoff;
+ BOOL hosts_override;
+ BOOL hosts_randomize;
+ BOOL keepalive;
+ BOOL lmtp_ignore_quota;
+ uschar *expand_retry_include_ip_address;
+ BOOL retry_include_ip_address;
+#ifdef SUPPORT_SOCKS
+ uschar *socks_proxy;
+#endif
+#ifndef DISABLE_TLS
+ uschar *tls_certificate;
+ uschar *tls_crl;
+ uschar *tls_privatekey;
+ uschar *tls_require_ciphers;
+# ifdef EXPERIMENTAL_TLS_RESUME
+ uschar *tls_resumption_hosts;
+# endif
+ const uschar *tls_sni;
+ uschar *tls_verify_certificates;
+ int tls_dh_min_bits;
+ BOOL tls_tempfail_tryclear;
+ uschar *tls_verify_hosts;
+ uschar *tls_try_verify_hosts;
+ uschar *tls_verify_cert_hostnames;
+#endif
+#ifdef SUPPORT_I18N
+ uschar *utf8_downconvert;
+#endif
+#ifndef DISABLE_DKIM
+ struct ob_dkim dkim;
+#endif
+#ifdef EXPERIMENTAL_ARC
+ uschar *arc_sign;
+#endif
+} smtp_transport_options_block;
+
+#define SOB (smtp_transport_options_block *)
+
+
+/* smtp connect context */
+typedef struct {
+ uschar * from_addr;
+ address_item * addrlist;
+
+ smtp_connect_args conn_args;
+ int port;
+
+ BOOL verify:1;
+ BOOL lmtp:1;
+ BOOL smtps:1;
+ BOOL ok:1;
+ BOOL setting_up:1;
+#ifndef DISABLE_PIPE_CONNECT
+ BOOL early_pipe_ok:1;
+ BOOL early_pipe_active:1;
+#endif
+ BOOL esmtp:1;
+ BOOL esmtp_sent:1;
+ BOOL pipelining_used:1;
+#ifndef DISABLE_PRDR
+ BOOL prdr_active:1;
+#endif
+#ifdef SUPPORT_I18N
+ BOOL utf8_needed:1;
+#endif
+ BOOL dsn_all_lasthop:1;
+#if !defined(DISABLE_TLS) && defined(SUPPORT_DANE)
+ BOOL dane_required:1;
+#endif
+#ifndef DISABLE_PIPE_CONNECT
+ BOOL pending_BANNER:1;
+ BOOL pending_EHLO:1;
+#endif
+ BOOL pending_MAIL:1;
+ BOOL pending_BDAT:1;
+ BOOL RCPT_452:1;
+ BOOL good_RCPT:1;
+ BOOL completed_addr:1;
+ BOOL send_rset:1;
+ BOOL send_quit:1;
+
+ int max_rcpt;
+ int cmd_count;
+
+ unsigned peer_offered;
+ unsigned avoid_option;
+ uschar * igquotstr;
+ uschar * helo_data;
+#ifdef EXPERIMENTAL_DSN_INFO
+ uschar * smtp_greeting;
+ uschar * helo_response;
+#endif
+#ifndef DISABLE_PIPE_CONNECT
+ ehlo_resp_precis ehlo_resp;
+#endif
+
+ struct timeval delivery_start;
+ address_item * first_addr;
+ address_item * next_addr;
+ address_item * sync_addr;
+
+ client_conn_ctx cctx;
+ smtp_inblock inblock;
+ smtp_outblock outblock;
+ uschar buffer[DELIVER_BUFFER_SIZE];
+ uschar inbuffer[4096];
+ uschar outbuffer[4096];
+} smtp_context;
+
+extern int smtp_setup_conn(smtp_context *, BOOL);
+extern int smtp_write_mail_and_rcpt_cmds(smtp_context *, int *);
+extern int smtp_reap_early_pipe(smtp_context *, int *);
+
+
+/* Data for reading the private options. */
+
+extern optionlist smtp_transport_options[];
+extern int smtp_transport_options_count;
+
+/* Block containing default values. */
+
+extern smtp_transport_options_block smtp_transport_option_defaults;
+
+/* The main, init, and closedown entry points for the transport */
+
+extern BOOL smtp_transport_entry(transport_instance *, address_item *);
+extern void smtp_transport_init(transport_instance *);
+extern void smtp_transport_closedown(transport_instance *);
+
+
+
+#ifdef SUPPORT_SOCKS
+extern int socks_sock_connect(host_item *, int, int, uschar *,
+ transport_instance *, int);
+#endif
+
+/* End of transports/smtp.h */