| | 1 | /************************************************* |
| | 2 | * Exim - an Internet mail transport agent * |
| | 3 | *************************************************/ |
| | 4 | |
| | 5 | /* Copyright (c) University of Cambridge 1995 - 2018 */ |
| | 6 | /* Copyright (c) The Exim Maintainers 2020 */ |
| | 7 | /* See the file NOTICE for conditions of use and distribution. */ |
| | 8 | |
| | 9 | #define DELIVER_BUFFER_SIZE 4096 |
| | 10 | |
| | 11 | #define PENDING 256 |
| | 12 | #define PENDING_DEFER (PENDING + DEFER) |
| | 13 | #define PENDING_OK (PENDING + OK) |
| | 14 | |
| | 15 | |
| | 16 | /* Private structure for the private options and other private data. */ |
| | 17 | |
| | 18 | typedef struct { |
| | 19 | uschar *hosts; |
| | 20 | uschar *fallback_hosts; |
| | 21 | host_item *hostlist; |
| | 22 | host_item *fallback_hostlist; |
| | 23 | uschar *authenticated_sender; |
| | 24 | uschar *helo_data; |
| | 25 | uschar *interface; |
| | 26 | uschar *port; |
| | 27 | uschar *protocol; |
| | 28 | uschar *dscp; |
| | 29 | uschar *serialize_hosts; |
| | 30 | uschar *hosts_try_auth; |
| | 31 | uschar *hosts_require_auth; |
| | 32 | uschar *hosts_try_chunking; |
| | 33 | #ifdef SUPPORT_DANE |
| | 34 | uschar *hosts_try_dane; |
| | 35 | uschar *hosts_require_dane; |
| | 36 | uschar *dane_require_tls_ciphers; |
| | 37 | #endif |
| | 38 | uschar *hosts_try_fastopen; |
| | 39 | #ifndef DISABLE_PRDR |
| | 40 | uschar *hosts_try_prdr; |
| | 41 | #endif |
| | 42 | #ifndef DISABLE_OCSP |
| | 43 | uschar *hosts_request_ocsp; |
| | 44 | uschar *hosts_require_ocsp; |
| | 45 | #endif |
| | 46 | uschar *hosts_require_tls; |
| | 47 | uschar *hosts_avoid_tls; |
| | 48 | uschar *hosts_verify_avoid_tls; |
| | 49 | uschar *hosts_avoid_pipelining; |
| | 50 | #ifndef DISABLE_PIPE_CONNECT |
| | 51 | uschar *hosts_pipe_connect; |
| | 52 | #endif |
| | 53 | uschar *hosts_avoid_esmtp; |
| | 54 | #ifndef DISABLE_TLS |
| | 55 | uschar *hosts_nopass_tls; |
| | 56 | uschar *hosts_noproxy_tls; |
| | 57 | #endif |
| | 58 | int command_timeout; |
| | 59 | int connect_timeout; |
| | 60 | int data_timeout; |
| | 61 | int final_timeout; |
| | 62 | int size_addition; |
| | 63 | int hosts_max_try; |
| | 64 | int hosts_max_try_hardlimit; |
| | 65 | BOOL address_retry_include_sender; |
| | 66 | BOOL allow_localhost; |
| | 67 | BOOL authenticated_sender_force; |
| | 68 | BOOL gethostbyname; |
| | 69 | BOOL dns_qualify_single; |
| | 70 | BOOL dns_search_parents; |
| | 71 | dnssec_domains dnssec; |
| | 72 | BOOL delay_after_cutoff; |
| | 73 | BOOL hosts_override; |
| | 74 | BOOL hosts_randomize; |
| | 75 | BOOL keepalive; |
| | 76 | BOOL lmtp_ignore_quota; |
| | 77 | uschar *expand_retry_include_ip_address; |
| | 78 | BOOL retry_include_ip_address; |
| | 79 | #ifdef SUPPORT_SOCKS |
| | 80 | uschar *socks_proxy; |
| | 81 | #endif |
| | 82 | #ifndef DISABLE_TLS |
| | 83 | uschar *tls_certificate; |
| | 84 | uschar *tls_crl; |
| | 85 | uschar *tls_privatekey; |
| | 86 | uschar *tls_require_ciphers; |
| | 87 | # ifdef EXPERIMENTAL_TLS_RESUME |
| | 88 | uschar *tls_resumption_hosts; |
| | 89 | # endif |
| | 90 | uschar *tls_sni; |
| | 91 | uschar *tls_verify_certificates; |
| | 92 | int tls_dh_min_bits; |
| | 93 | BOOL tls_tempfail_tryclear; |
| | 94 | uschar *tls_verify_hosts; |
| | 95 | uschar *tls_try_verify_hosts; |
| | 96 | uschar *tls_verify_cert_hostnames; |
| | 97 | #endif |
| | 98 | #ifdef SUPPORT_I18N |
| | 99 | uschar *utf8_downconvert; |
| | 100 | #endif |
| | 101 | #ifndef DISABLE_DKIM |
| | 102 | struct ob_dkim dkim; |
| | 103 | #endif |
| | 104 | #ifdef EXPERIMENTAL_ARC |
| | 105 | uschar *arc_sign; |
| | 106 | #endif |
| | 107 | } smtp_transport_options_block; |
| | 108 | |
| | 109 | #define SOB (smtp_transport_options_block *) |
| | 110 | |
| | 111 | |
| | 112 | /* smtp connect context */ |
| | 113 | typedef struct { |
| | 114 | uschar * from_addr; |
| | 115 | address_item * addrlist; |
| | 116 | |
| | 117 | smtp_connect_args conn_args; |
| | 118 | int port; |
| | 119 | |
| | 120 | BOOL verify:1; |
| | 121 | BOOL lmtp:1; |
| | 122 | BOOL smtps:1; |
| | 123 | BOOL ok:1; |
| | 124 | BOOL setting_up:1; |
| | 125 | #ifndef DISABLE_PIPE_CONNECT |
| | 126 | BOOL early_pipe_ok:1; |
| | 127 | BOOL early_pipe_active:1; |
| | 128 | #endif |
| | 129 | BOOL esmtp:1; |
| | 130 | BOOL esmtp_sent:1; |
| | 131 | BOOL pipelining_used:1; |
| | 132 | #ifndef DISABLE_PRDR |
| | 133 | BOOL prdr_active:1; |
| | 134 | #endif |
| | 135 | #ifdef SUPPORT_I18N |
| | 136 | BOOL utf8_needed:1; |
| | 137 | #endif |
| | 138 | BOOL dsn_all_lasthop:1; |
| | 139 | #if !defined(DISABLE_TLS) && defined(SUPPORT_DANE) |
| | 140 | BOOL dane_required:1; |
| | 141 | #endif |
| | 142 | #ifndef DISABLE_PIPE_CONNECT |
| | 143 | BOOL pending_BANNER:1; |
| | 144 | BOOL pending_EHLO:1; |
| | 145 | #endif |
| | 146 | BOOL pending_MAIL:1; |
| | 147 | BOOL pending_BDAT:1; |
| | 148 | BOOL RCPT_452:1; |
| | 149 | BOOL good_RCPT:1; |
| | 150 | BOOL completed_addr:1; |
| | 151 | BOOL send_rset:1; |
| | 152 | BOOL send_quit:1; |
| | 153 | |
| | 154 | int max_rcpt; |
| | 155 | int cmd_count; |
| | 156 | |
| | 157 | unsigned peer_offered; |
| | 158 | unsigned avoid_option; |
| | 159 | uschar * igquotstr; |
| | 160 | uschar * helo_data; |
| | 161 | #ifdef EXPERIMENTAL_DSN_INFO |
| | 162 | uschar * smtp_greeting; |
| | 163 | uschar * helo_response; |
| | 164 | #endif |
| | 165 | #ifndef DISABLE_PIPE_CONNECT |
| | 166 | ehlo_resp_precis ehlo_resp; |
| | 167 | #endif |
| | 168 | |
| | 169 | struct timeval delivery_start; |
| | 170 | address_item * first_addr; |
| | 171 | address_item * next_addr; |
| | 172 | address_item * sync_addr; |
| | 173 | |
| | 174 | client_conn_ctx cctx; |
| | 175 | smtp_inblock inblock; |
| | 176 | smtp_outblock outblock; |
| | 177 | uschar buffer[DELIVER_BUFFER_SIZE]; |
| | 178 | uschar inbuffer[4096]; |
| | 179 | uschar outbuffer[4096]; |
| | 180 | } smtp_context; |
| | 181 | |
| | 182 | extern int smtp_setup_conn(smtp_context *, BOOL); |
| | 183 | extern int smtp_write_mail_and_rcpt_cmds(smtp_context *, int *); |
| | 184 | extern int smtp_reap_early_pipe(smtp_context *, int *); |
| | 185 | |
| | 186 | |
| | 187 | /* Data for reading the private options. */ |
| | 188 | |
| | 189 | extern optionlist smtp_transport_options[]; |
| | 190 | extern int smtp_transport_options_count; |
| | 191 | |
| | 192 | /* Block containing default values. */ |
| | 193 | |
| | 194 | extern smtp_transport_options_block smtp_transport_option_defaults; |
| | 195 | |
| | 196 | /* The main, init, and closedown entry points for the transport */ |
| | 197 | |
| | 198 | extern BOOL smtp_transport_entry(transport_instance *, address_item *); |
| | 199 | extern void smtp_transport_init(transport_instance *); |
| | 200 | extern void smtp_transport_closedown(transport_instance *); |
| | 201 | |
| | 202 | |
| | 203 | |
| | 204 | #ifdef SUPPORT_SOCKS |
| | 205 | extern int socks_sock_connect(host_item *, int, int, uschar *, |
| | 206 | transport_instance *, int); |
| | 207 | #endif |
| | 208 | |
| | 209 | /* End of transports/smtp.h */ |
projects / exim.git / blame_incremental