/*
* Copyright (c) 2008-2014, Simon Schubert <2@0x2c.org>.
* Copyright (c) 2008 The DragonFly Project. All rights reserved.
*
* This code is derived from software contributed to The DragonFly Project
* by Simon Schubert <2@0x2c.org> and
* Matthias Schmidt <matthias@dragonflybsd.org>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name of The DragonFly Project nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific, prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef DMA_H
#define DMA_H
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <arpa/nameser.h>
#include <arpa/inet.h>
#include <openssl/ssl.h>
#include <netdb.h>
#include <sysexits.h>
#define VERSION "DragonFly Mail Agent " DMA_VERSION
#define BUF_SIZE 2048
#define ERRMSG_SIZE 200
#define USERNAME_SIZE 50
#define MIN_RETRY 300 /* 5 minutes */
#define MAX_RETRY (3*60*60) /* retry at least every 3 hours */
#define MAX_TIMEOUT (5*24*60*60) /* give up after 5 days */
#define SLEEP_TIMEOUT 30 /* check for queue flush every 30 seconds */
#ifndef PATH_MAX
#define PATH_MAX 1024 /* Max path len */
#endif
#define SMTP_PORT 25 /* Default SMTP port */
#define CON_TIMEOUT (5*60) /* Connection timeout per RFC5321 */
#define STARTTLS 0x002 /* StartTLS support */
#define SECURETRANS 0x004 /* SSL/TLS in general */
#define NOSSL 0x008 /* Do not use SSL */
#define DEFER 0x010 /* Defer mails */
#define INSECURE 0x020 /* Allow plain login w/o encryption */
#define FULLBOUNCE 0x040 /* Bounce the full message */
#define TLS_OPP 0x080 /* Opportunistic STARTTLS */
#define NULLCLIENT 0x100 /* Nullclient support */
#ifndef CONF_PATH
#error Please define CONF_PATH
#endif
#ifndef LIBEXEC_PATH
#error Please define LIBEXEC_PATH
#endif
#define SPOOL_FLUSHFILE "flush"
#ifndef DMA_ROOT_USER
#define DMA_ROOT_USER "mail"
#endif
#ifndef DMA_GROUP
#define DMA_GROUP "mail"
#endif
#ifndef MBOX_STRICT
#define MBOX_STRICT 0
#endif
struct stritem {
SLIST_ENTRY(stritem) next;
char *str;
};
SLIST_HEAD(strlist, stritem);
struct alias {
LIST_ENTRY(alias) next;
char *alias;
struct strlist dests;
};
LIST_HEAD(aliases, alias);
struct qitem {
LIST_ENTRY(qitem) next;
const char *sender;
char *addr;
char *queuefn;
char *mailfn;
char *queueid;
FILE *queuef;
FILE *mailf;
int remote;
};
LIST_HEAD(queueh, qitem);
struct queue {
struct queueh queue;
char *id;
FILE *mailf;
char *tmpf;
const char *sender;
};
struct config {
const char *smarthost;
int port;
const char *aliases;
const char *spooldir;
const char *authpath;
const char *certfile;
int features;
const char *mailname;
const char *masquerade_host;
const char *masquerade_user;
/* XXX does not belong into config */
SSL *ssl;
};
struct authuser {
SLIST_ENTRY(authuser) next;
char *login;
char *password;
char *host;
};
SLIST_HEAD(authusers, authuser);
struct mx_hostentry {
char host[MAXDNAME];
char addr[INET6_ADDRSTRLEN];
int pref;
struct addrinfo ai;
struct sockaddr_storage sa;
};
/* global variables */
extern struct aliases aliases;
extern struct config config;
extern struct strlist tmpfs;
extern struct authusers authusers;
extern char username[USERNAME_SIZE];
extern uid_t useruid;
extern const char *logident_base;
extern char neterr[ERRMSG_SIZE];
extern char errmsg[ERRMSG_SIZE];
/* aliases_parse.y */
int yyparse(void);
int yywrap(void);
int yylex(void);
extern FILE *yyin;
/* conf.c */
void trim_line(char *);
void parse_conf(const char *);
void parse_authfile(const char *);
/* crypto.c */
void hmac_md5(unsigned char *, int, unsigned char *, int, unsigned char *);
int smtp_auth_md5(int, char *, char *);
int smtp_init_crypto(int, int);
/* dns.c */
int dns_get_mx_list(const char *, int, struct mx_hostentry **, int);
/* net.c */
char *ssl_errstr(void);
int read_remote(int, int, char *);
ssize_t send_remote_command(int, const char*, ...) __attribute__((__nonnull__(2), __format__ (__printf__, 2, 3)));
int deliver_remote(struct qitem *);
/* base64.c */
int base64_encode(const void *, int, char **);
int base64_decode(const char *, void *);
/* dma.c */
#define EXPAND_ADDR 1
#define EXPAND_WILDCARD 2
int add_recp(struct queue *, const char *, int);
void run_queue(struct queue *);
/* spool.c */
int newspoolf(struct queue *);
int linkspool(struct queue *);
int load_queue(struct queue *);
void delqueue(struct qitem *);
int acquirespool(struct qitem *);
void dropspool(struct queue *, struct qitem *);
int flushqueue_since(unsigned int);
int flushqueue_signal(void);
/* local.c */
int deliver_local(struct qitem *);
/* mail.c */
void bounce(struct qitem *, const char *);
int readmail(struct queue *, int, int);
/* util.c */
const char *hostname(void);
void setlogident(const char *, ...) __attribute__((__format__ (__printf__, 1, 2)));
void errlog(int, const char *, ...) __attribute__((__format__ (__printf__, 2, 3)));
void errlogx(int, const char *, ...) __attribute__((__format__ (__printf__, 2, 3)));
void set_username(void);
void deltmp(void);
int do_timeout(int, int);
int open_locked(const char *, int, ...);
char *rfc822date(void);
int strprefixcmp(const char *, const char *);
void init_random(void);
#endif
