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Diffstat (limited to 'src/global/deliver_request.h')
| -rw-r--r-- | src/global/deliver_request.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/src/global/deliver_request.h b/src/global/deliver_request.h new file mode 100644 index 0000000..c1c5b1d --- /dev/null +++ b/src/global/deliver_request.h @@ -0,0 +1,156 @@ +#ifndef _DELIVER_REQUEST_H_INCLUDED_ +#define _DELIVER_REQUEST_H_INCLUDED_ + +/*++ +/* NAME +/* deliver_request 3h +/* SUMMARY +/* mail delivery request protocol, server side +/* SYNOPSIS +/* #include <deliver_request.h> +/* DESCRIPTION +/* .nf + + /* + * System library. + */ +#include <sys_defs.h> +#include <stdarg.h> + + /* + * Utility library. + */ +#include <vstring.h> +#include <vstream.h> + + /* + * Global library. + */ +#include <recipient_list.h> +#include <dsn.h> +#include <msg_stats.h> + + /* + * Structure of a server mail delivery request. + */ +typedef struct DELIVER_REQUEST { + VSTREAM *fp; /* stream, shared lock */ + int flags; /* see below */ + char *queue_name; /* message queue name */ + char *queue_id; /* message queue id */ + long data_offset; /* offset to message */ + long data_size; /* message size */ + char *nexthop; /* next hop name */ + char *encoding; /* content encoding */ + int smtputf8; /* SMTPUTF8 level */ + char *sender; /* envelope sender */ + MSG_STATS msg_stats; /* time profile */ + RECIPIENT_LIST rcpt_list; /* envelope recipients */ + DSN *hop_status; /* DSN status */ + char *client_name; /* client hostname */ + char *client_addr; /* client address */ + char *client_port; /* client port */ + char *client_proto; /* client protocol */ + char *client_helo; /* helo parameter */ + char *sasl_method; /* SASL method */ + char *sasl_username; /* SASL user name */ + char *sasl_sender; /* SASL sender */ + char *log_ident; /* original queue ID */ + char *rewrite_context; /* address rewrite context */ + char *dsn_envid; /* DSN envelope ID */ + int dsn_ret; /* DSN full/header notification */ +} DELIVER_REQUEST; + + /* + * Since we can't send null pointers, null strings represent unavailable + * attributes instead. They're less likely to explode in our face, too. + */ +#define DEL_REQ_ATTR_AVAIL(a) (*(a)) + + /* + * How to deliver, really? + */ +#define DEL_REQ_FLAG_DEFLT (DEL_REQ_FLAG_SUCCESS | DEL_REQ_FLAG_BOUNCE) +#define DEL_REQ_FLAG_SUCCESS (1<<0) /* delete successful recipients */ +#define DEL_REQ_FLAG_BOUNCE (1<<1) /* unimplemented */ + +#define DEL_REQ_FLAG_MTA_VRFY (1<<8) /* MTA-requested address probe */ +#define DEL_REQ_FLAG_USR_VRFY (1<<9) /* user-requested address probe */ +#define DEL_REQ_FLAG_RECORD (1<<10) /* record and deliver */ +#define DEL_REQ_FLAG_CONN_LOAD (1<<11) /* Consult opportunistic cache */ +#define DEL_REQ_FLAG_CONN_STORE (1<<12) /* Update opportunistic cache */ +#define DEL_REQ_FLAG_REC_DLY_SENT (1<<13) /* Record delayed delivery */ + + /* + * Cache Load and Store as value or mask. Use explicit _MASK for multi-bit + * values. + */ +#define DEL_REQ_FLAG_CONN_MASK \ + (DEL_REQ_FLAG_CONN_LOAD | DEL_REQ_FLAG_CONN_STORE) + + /* + * For compatibility, the old confusing names. + */ +#define DEL_REQ_FLAG_VERIFY DEL_REQ_FLAG_MTA_VRFY +#define DEL_REQ_FLAG_EXPAND DEL_REQ_FLAG_USR_VRFY + + /* + * Mail that uses the trace(8) service, and maybe more. + */ +#define DEL_REQ_TRACE_FLAGS_MASK \ + (DEL_REQ_FLAG_MTA_VRFY | DEL_REQ_FLAG_USR_VRFY | DEL_REQ_FLAG_RECORD \ + | DEL_REQ_FLAG_REC_DLY_SENT) +#define DEL_REQ_TRACE_FLAGS(f) ((f) & DEL_REQ_TRACE_FLAGS_MASK) + + /* + * Mail that is not delivered (i.e. uses the trace(8) service only). + */ +#define DEL_REQ_TRACE_ONLY_MASK \ + (DEL_REQ_FLAG_MTA_VRFY | DEL_REQ_FLAG_USR_VRFY) +#define DEL_REQ_TRACE_ONLY(f) ((f) & DEL_REQ_TRACE_ONLY_MASK) + + /* + * Per-recipient delivery status. Not to be confused with per-delivery + * request status. + */ +#define DEL_RCPT_STAT_OK 0 +#define DEL_RCPT_STAT_DEFER 1 +#define DEL_RCPT_STAT_BOUNCE 2 +#define DEL_RCPT_STAT_TODO 3 + + /* + * Delivery request status. Note that there are only FINAL and DEFER. This + * is because delivery status information can be lost when a delivery agent + * or queue manager process terminates prematurely. The only distinctions we + * can rely on are "final delivery completed" (positive confirmation that + * all recipients are marked as done) and "everything else". In the absence + * of a definitive statement the queue manager will always have to be + * prepared for all possibilities. + */ +#define DEL_STAT_FINAL 0 /* delivered or bounced */ +#define DEL_STAT_DEFER (-1) /* not delivered or bounced */ + +typedef struct VSTREAM _deliver_vstream_; +extern DELIVER_REQUEST *deliver_request_read(_deliver_vstream_ *); +extern int deliver_request_done(_deliver_vstream_ *, DELIVER_REQUEST *, int); + +extern int PRINTFLIKE(4, 5) reject_deliver_request(const char *, + DELIVER_REQUEST *, const char *, const char *,...); + +/* LICENSE +/* .ad +/* .fi +/* The Secure Mailer license must be distributed with this software. +/* AUTHOR(S) +/* Wietse Venema +/* IBM T.J. Watson Research +/* P.O. Box 704 +/* Yorktown Heights, NY 10598, USA +/* +/* Wietse Venema +/* Google, Inc. +/* 111 8th Avenue +/* New York, NY 10011, USA +/*--*/ + +#endif |