qmail-smtpd.c File Reference

requires sslserver or tcpserver More...

#include <unistd.h>
#include "wildmat.h"
#include "buffer.h"
#include "stralloc.h"
#include "genalloc.h"
#include "alloc.h"
#include "qmail.h"
#include "auto_qmail.h"
#include "control.h"
#include "received.h"
#include "constmap.h"
#include "logmsg.h"
#include "ipme.h"
#include "fd.h"
#include "ip.h"
#include "str.h"
#include "fmt.h"
#include "scan.h"
#include "byte.h"
#include "case.h"
#include "env.h"
#include "now.h"
#include "exit.h"
#include "rcpthosts.h"
#include "recipients.h"
#include "mfrules.h"
#include "tls_start.h"
#include "smtpdlog.h"
#include "timeout.h"
#include "commands.h"
#include "cdbread.h"
#include "dns.h"
#include "wait.h"
#include "sig.h"
#include "close.h"
#include "open.h"
#include "base64.h"
#include "spf.h"

Include dependency graph for qmail-smtpd.c:

Go to the source code of this file.

Data Structures
struct	authcmd

Macros
#define	PAM111421
#define	AUTHSLEEP   5
#define	PORT_SMTPS   "465"
#define	SMTP_TIMEOUT   1200
#define	MIMETYPE_LEN   9
#define	LOADER_LEN   5
#define	BASE64MESSAGE   "content-transfer-encoding: base64"
#define	FDIN   0
#define	FDOUT   1
#define	FDLOG   2
#define	FDAUTH   3
#define	MAXHOPS   100

Functions
int	modssl_info ()
ssize_t	safewrite (int fd, char *buf, int len)
ssize_t	saferead (int fd, char *buf, int len)
void	flush ()
void	out (char *s)
int	bhelocheck (void)
int	dnsq (char *arg, char type)
void	smtp_greet (char *code)
void	smtp_help ()
void	smtp_quit ()
void	dohelo (char *helo)
void	setup ()
void	auth_info (char *method)
int	addrparse (char *arg)
int	bmfcheck ()
int	brtcheck ()
int	addrallowed (char *arg)
int	rcptallowed ()
int	localaddr (char *mf)
int	spf_check (int flag6)
int	mailfrom_size (char *arg)
void	mailfrom_auth (char *arg, int len)
void	mailfrom_parms (char *arg)
void	smtp_helo (char *arg)
void	smtp_ehlo (char *arg)
void	smtp_rset (void)
void	smtp_starttls ()
void	smtp_mail (char *arg)
int	postgrey_scanner ()
void	smtp_rcpt (char *arg)
void	blast (int *hops)
void	acceptmessage (unsigned long qp)
void	smtp_data ()
int	authgetl (void)
int	authenticate (void)
int	auth_login (char *arg)
int	auth_plain (char *arg)
int	auth_cram ()
void	smtp_auth (char *arg)
int	main (int argc, char *const *argv)

Variables
unsigned long	databytes = 0
unsigned long	timeout = SMTP_TIMEOUT
char	inbuf [BUFSIZE_MESS]
buffer	bi = BUFFER_INIT(saferead,FDIN,inbuf,sizeof(inbuf))
char	outbuf [BUFSIZE_LINE]
buffer	bo = BUFFER_INIT(safewrite,FDOUT,outbuf,sizeof(outbuf))
char	buflog [BUFSIZE_LOG]
buffer	bl = BUFFER_INIT(buffer_unixwrite,FDLOG,buflog,sizeof(buflog))
stralloc	sa = {0}
ipalloc	ia = {0}
char *	remoteip
char *	remotehost
char *	remoteinfo
char *	local
char *	localport
char *	relayclient
int	flagutf8 = 0
int	flaglf = 0
stralloc	protocol = {0}
stralloc	helohost = {0}
char *	fakehelo
stralloc	tlsinfo = {0}
char *	helocheck
int	flagbadhelo
int	flagdnshelo
int	seenhelo = 0
char *	badmailcond
char *	badhelocond
int	liphostok = 0
stralloc	liphost = {0}
int	bmfok = 0
stralloc	bmf = {0}
struct constmap	mapbmf
int	brtok = 0
stralloc	brt = {0}
struct constmap	mapbrt
int	badhelook = 0
stralloc	badhelo = {0}
struct constmap	mapbhlo
int	flagmimetype = 0
char *	badmimeinit
int	flagloadertype = 0
char *	badloaderinit
int	flagmav = 0
int	localmf = 0
char *	localmfcheck
char *	mfdnscheck
char *	qhpsi
char *	base64
int	maxrcptcount = 0
int	flagerrcpts = 0
int	flagnotorious = 0
int	tarpitcount = 0
int	tarpitdelay = 0
int	greylist = 0
stralloc	pgbind = {0}
char *	auth
int	smtpauth = 0
int	seenauth = 0
stralloc	authmethod = {0}
int	starttls = 0
int	seentls = 0
char *	ucspitls = 0
char *	tlsversion
char *	cipher
char *	cipherperm
char *	cipherused
char *	clientdn = 0
char *	clientcn = 0
char *	dnemail
stralloc	mailto = {0}
stralloc	deliverto = {0}
char *	delivermailto
stralloc	rblinfo = {0}
char *	rblsmtpd
int	flagspf = 0
stralloc	addr = {0}
stralloc	eddr = {0}
stralloc	rddr = {0}
stralloc	mailfrom = {0}
stralloc	rcptto = {0}
stralloc	user = {0}
stralloc	fuser = {0}
stralloc	mfparms = {0}
int	seenmail = 0
int	flagaddr
int	flagrcpt
int	flagdnsmf = 0
int	flagsize
int	rcptcount = 0
struct qmail	qqt
unsigned long	bytestooverflow = 0
stralloc	line = {0}
stralloc	base64types = {0}
stralloc	badmimetype = {0}
stralloc	badloadertype = {0}
unsigned int	nolines = 0
unsigned int	flagb64 = 0
unsigned int	flagbase = 0
unsigned int	flagblank = 0
char	accept_buf [FMT_ULONG]
char	unique [FMT_ULONG+FMT_ULONG+3]
char **	childargs
char	authbuf [BUFSIZE_AUTH]
buffer	ba = BUFFER_INIT(safewrite,FDAUTH,authbuf,sizeof(authbuf))
struct authcmd	authcmds []
struct commands	smtpcommands []

Detailed Description

requires sslserver or tcpserver

-- authenticating ESMTP/ESMTPS server

Definition in file qmail-smtpd.c.

Macro Definition Documentation

AUTHSLEEP

#define AUTHSLEEP   5

Definition at line 46 of file qmail-smtpd.c.

BASE64MESSAGE

#define BASE64MESSAGE   "content-transfer-encoding: base64"

Definition at line 52 of file qmail-smtpd.c.

FDAUTH

#define FDAUTH   3

Definition at line 56 of file qmail-smtpd.c.

FDIN

#define FDIN   0

Definition at line 53 of file qmail-smtpd.c.

FDLOG

#define FDLOG   2

Definition at line 55 of file qmail-smtpd.c.

FDOUT

#define FDOUT   1

Definition at line 54 of file qmail-smtpd.c.

LOADER_LEN

#define LOADER_LEN   5

Definition at line 51 of file qmail-smtpd.c.

MAXHOPS

#define MAXHOPS   100

Definition at line 58 of file qmail-smtpd.c.

MIMETYPE_LEN

#define MIMETYPE_LEN   9

Definition at line 50 of file qmail-smtpd.c.

PAM111421

#define PAM111421

Definition at line 45 of file qmail-smtpd.c.

PORT_SMTPS

#define PORT_SMTPS   "465"

Definition at line 47 of file qmail-smtpd.c.

SMTP_TIMEOUT

#define SMTP_TIMEOUT   1200

Definition at line 48 of file qmail-smtpd.c.

Function Documentation

acceptmessage()

void acceptmessage

(

unsigned long

qp

)

Definition at line 1364 of file qmail-smtpd.c.

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addrallowed()

int addrallowed

(

char *

arg

)

Definition at line 764 of file qmail-smtpd.c.

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addrparse()

int addrparse

(

char *

arg

)

Definition at line 545 of file qmail-smtpd.c.

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auth_cram()

int auth_cram

(

)

Definition at line 1574 of file qmail-smtpd.c.

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auth_info()

void auth_info

(

char *

method

)

Definition at line 469 of file qmail-smtpd.c.

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auth_login()

int auth_login

(

char *

arg

)

Definition at line 1524 of file qmail-smtpd.c.

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auth_plain()

int auth_plain

(

char *

arg

)

Definition at line 1549 of file qmail-smtpd.c.

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authenticate()

int authenticate

(

void

)

Definition at line 1483 of file qmail-smtpd.c.

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authgetl()

int authgetl

(

void

)

Definition at line 1463 of file qmail-smtpd.c.

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bhelocheck()

int bhelocheck

(

void

)

Definition at line 610 of file qmail-smtpd.c.

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blast()

void blast

(

int *

hops

)

Definition at line 1295 of file qmail-smtpd.c.

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bmfcheck()

int bmfcheck

(

)

Definition at line 638 of file qmail-smtpd.c.

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brtcheck()

int brtcheck

(

)

Definition at line 727 of file qmail-smtpd.c.

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dnsq()

int dnsq	(	char *	arg,
		char	type
	)

Definition at line 101 of file qmail-smtpd.c.

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dohelo()

void dohelo

(

char *

helo

)

Definition at line 176 of file qmail-smtpd.c.

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flush()

void flush

(

void

)

Definition at line 91 of file qmail-smtpd.c.

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localaddr()

int localaddr

(

char *

mf

)

Definition at line 785 of file qmail-smtpd.c.

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mailfrom_auth()

void mailfrom_auth	(	char *	arg,
		int	len
	)

Definition at line 878 of file qmail-smtpd.c.

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mailfrom_parms()

void mailfrom_parms

(

char *

arg

)

Definition at line 911 of file qmail-smtpd.c.

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mailfrom_size()

int mailfrom_size

(

char *

arg

)

Definition at line 867 of file qmail-smtpd.c.

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main()

int main	(	int	argc,
		char *const *	argv
	)

Definition at line 1709 of file qmail-smtpd.c.

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modssl_info()

int modssl_info

(

)

Definition at line 481 of file qmail-smtpd.c.

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out()

void out

(

char *

s

)

Definition at line 92 of file qmail-smtpd.c.

postgrey_scanner()

int postgrey_scanner

(

)

Definition at line 1032 of file qmail-smtpd.c.

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rcptallowed()

int rcptallowed

(

)

Definition at line 772 of file qmail-smtpd.c.

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saferead()

ssize_t saferead	(	int	fd,
		char *	buf,
		int	len
	)

Definition at line 72 of file qmail-smtpd.c.

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safewrite()

ssize_t safewrite	(	int	fd,
		char *	buf,
		int	len
	)

Definition at line 64 of file qmail-smtpd.c.

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setup()

void setup

(

)

Definition at line 277 of file qmail-smtpd.c.

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smtp_auth()

void smtp_auth

(

char *

arg

)

Definition at line 1623 of file qmail-smtpd.c.

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smtp_data()

void smtp_data

(

)

Definition at line 1377 of file qmail-smtpd.c.

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smtp_ehlo()

void smtp_ehlo

(

char *

arg

)

Definition at line 940 of file qmail-smtpd.c.

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smtp_greet()

void smtp_greet

(

char *

code

)

Definition at line 140 of file qmail-smtpd.c.

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smtp_helo()

void smtp_helo

(

char *

arg

)

Definition at line 933 of file qmail-smtpd.c.

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smtp_help()

void smtp_help

(

)

Definition at line 145 of file qmail-smtpd.c.

smtp_mail()

void smtp_mail

(

char *

arg

)

Definition at line 995 of file qmail-smtpd.c.

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smtp_quit()

void smtp_quit

(

)

Definition at line 149 of file qmail-smtpd.c.

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smtp_rcpt()

void smtp_rcpt

(

char *

arg

)

Definition at line 1056 of file qmail-smtpd.c.

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smtp_rset()

void smtp_rset

(

void

)

Definition at line 962 of file qmail-smtpd.c.

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smtp_starttls()

void smtp_starttls

(

)

Definition at line 971 of file qmail-smtpd.c.

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spf_check()

int spf_check

(

int

flag6

)

Definition at line 814 of file qmail-smtpd.c.

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Variable Documentation

accept_buf

char accept_buf[FMT_ULONG]

Definition at line 1362 of file qmail-smtpd.c.

addr

stralloc addr = {0}

Definition at line 529 of file qmail-smtpd.c.

auth

char* auth

Definition at line 252 of file qmail-smtpd.c.

authbuf

char authbuf[BUFSIZE_AUTH]

Definition at line 1460 of file qmail-smtpd.c.

authcmds

struct authcmd authcmds[]

Initial value:

= {
  { "login", auth_login }
, { "plain", auth_plain }
, { "cram-md5", auth_cram }
, { 0, err_noauth }
}

authmethod

stralloc authmethod = {0}

Definition at line 255 of file qmail-smtpd.c.

ba

buffer ba = BUFFER_INIT(safewrite,FDAUTH,authbuf,sizeof(authbuf))

Definition at line 1461 of file qmail-smtpd.c.

badhelo

stralloc badhelo = {0}

Definition at line 219 of file qmail-smtpd.c.

badhelocond

char* badhelocond

Definition at line 174 of file qmail-smtpd.c.

badhelook

int badhelook = 0

Definition at line 218 of file qmail-smtpd.c.

badloaderinit

char* badloaderinit

Definition at line 231 of file qmail-smtpd.c.

badloadertype

stralloc badloadertype = {0}

Definition at line 1216 of file qmail-smtpd.c.

badmailcond

char* badmailcond

Definition at line 173 of file qmail-smtpd.c.

badmimeinit

char* badmimeinit

Definition at line 227 of file qmail-smtpd.c.

badmimetype

stralloc badmimetype = {0}

Definition at line 1215 of file qmail-smtpd.c.

base64

char* base64

Definition at line 240 of file qmail-smtpd.c.

base64types

stralloc base64types = {0}

Definition at line 1214 of file qmail-smtpd.c.

bi

buffer bi = BUFFER_INIT(saferead,FDIN,inbuf,sizeof(inbuf))

Definition at line 83 of file qmail-smtpd.c.

bl

buffer bl = BUFFER_INIT(buffer_unixwrite,FDLOG,buflog,sizeof(buflog))

Definition at line 89 of file qmail-smtpd.c.

bmf

stralloc bmf = {0}

Definition at line 211 of file qmail-smtpd.c.

bmfok

int bmfok = 0

Definition at line 210 of file qmail-smtpd.c.

bo

buffer bo = BUFFER_INIT(safewrite,FDOUT,outbuf,sizeof(outbuf))

Definition at line 86 of file qmail-smtpd.c.

brt

stralloc brt = {0}

Definition at line 215 of file qmail-smtpd.c.

brtok

int brtok = 0

Definition at line 214 of file qmail-smtpd.c.

buflog

char buflog[BUFSIZE_LOG]

Definition at line 88 of file qmail-smtpd.c.

bytestooverflow

unsigned long bytestooverflow = 0

Definition at line 1211 of file qmail-smtpd.c.

childargs

char** childargs

Definition at line 1459 of file qmail-smtpd.c.

cipher

char* cipher

Definition at line 261 of file qmail-smtpd.c.

cipherperm

char* cipherperm

Definition at line 262 of file qmail-smtpd.c.

cipherused

char* cipherused

Definition at line 263 of file qmail-smtpd.c.

clientcn

char* clientcn = 0

Definition at line 265 of file qmail-smtpd.c.

clientdn

char* clientdn = 0

Definition at line 264 of file qmail-smtpd.c.

databytes

unsigned long databytes = 0

Definition at line 59 of file qmail-smtpd.c.

delivermailto

char* delivermailto

Definition at line 270 of file qmail-smtpd.c.

deliverto

stralloc deliverto = {0}

Definition at line 269 of file qmail-smtpd.c.

dnemail

char* dnemail

Definition at line 266 of file qmail-smtpd.c.

eddr

stralloc eddr = {0}

Definition at line 530 of file qmail-smtpd.c.

fakehelo

char* fakehelo

Definition at line 165 of file qmail-smtpd.c.

flagaddr

int flagaddr

Definition at line 539 of file qmail-smtpd.c.

flagb64

unsigned int flagb64 = 0

Definition at line 1219 of file qmail-smtpd.c.

flagbadhelo

int flagbadhelo

Definition at line 169 of file qmail-smtpd.c.

flagbase

unsigned int flagbase = 0

Definition at line 1220 of file qmail-smtpd.c.

flagblank

unsigned int flagblank = 0

Definition at line 1221 of file qmail-smtpd.c.

flagdnshelo

int flagdnshelo

Definition at line 170 of file qmail-smtpd.c.

flagdnsmf

int flagdnsmf = 0

Definition at line 541 of file qmail-smtpd.c.

flagerrcpts

int flagerrcpts = 0

Definition at line 243 of file qmail-smtpd.c.

flaglf

int flaglf = 0

Definition at line 161 of file qmail-smtpd.c.

flagloadertype

int flagloadertype = 0

Definition at line 230 of file qmail-smtpd.c.

flagmav

int flagmav = 0

Definition at line 234 of file qmail-smtpd.c.

flagmimetype

int flagmimetype = 0

Definition at line 226 of file qmail-smtpd.c.

flagnotorious

int flagnotorious = 0

Definition at line 244 of file qmail-smtpd.c.

flagrcpt

int flagrcpt

Definition at line 540 of file qmail-smtpd.c.

flagsize

int flagsize

Definition at line 542 of file qmail-smtpd.c.

flagspf

int flagspf = 0

Definition at line 274 of file qmail-smtpd.c.

flagutf8

int flagutf8 = 0

Definition at line 160 of file qmail-smtpd.c.

fuser

stralloc fuser = {0}

Definition at line 535 of file qmail-smtpd.c.

greylist

int greylist = 0

Definition at line 249 of file qmail-smtpd.c.

helocheck

char* helocheck

Definition at line 168 of file qmail-smtpd.c.

helohost

stralloc helohost = {0}

Definition at line 164 of file qmail-smtpd.c.

ia

ipalloc ia = {0}

Definition at line 95 of file qmail-smtpd.c.

inbuf

char inbuf[BUFSIZE_MESS]

Definition at line 82 of file qmail-smtpd.c.

line

stralloc line = {0}

Definition at line 1213 of file qmail-smtpd.c.

liphost

stralloc liphost = {0}

Definition at line 208 of file qmail-smtpd.c.

liphostok

int liphostok = 0

Definition at line 207 of file qmail-smtpd.c.

local

char* local

Definition at line 157 of file qmail-smtpd.c.

localmf

int localmf = 0

Definition at line 235 of file qmail-smtpd.c.

localmfcheck

char* localmfcheck

Definition at line 236 of file qmail-smtpd.c.

localport

char* localport

Definition at line 158 of file qmail-smtpd.c.

mailfrom

stralloc mailfrom = {0}

Definition at line 532 of file qmail-smtpd.c.

mailto

stralloc mailto = {0}

Definition at line 268 of file qmail-smtpd.c.

mapbhlo

struct constmap mapbhlo

Definition at line 220 of file qmail-smtpd.c.

mapbmf

struct constmap mapbmf

Definition at line 212 of file qmail-smtpd.c.

mapbrt

struct constmap mapbrt

Definition at line 216 of file qmail-smtpd.c.

maxrcptcount

int maxrcptcount = 0

Definition at line 242 of file qmail-smtpd.c.

mfdnscheck

char* mfdnscheck

Definition at line 238 of file qmail-smtpd.c.

mfparms

stralloc mfparms = {0}

Definition at line 536 of file qmail-smtpd.c.

nolines

unsigned int nolines = 0

Definition at line 1218 of file qmail-smtpd.c.

outbuf

char outbuf[BUFSIZE_LINE]

Definition at line 85 of file qmail-smtpd.c.

pgbind

stralloc pgbind = {0}

Definition at line 250 of file qmail-smtpd.c.

protocol

stralloc protocol = {0}

Definition at line 163 of file qmail-smtpd.c.

qhpsi

char* qhpsi

Definition at line 239 of file qmail-smtpd.c.

qqt

struct qmail qqt

Definition at line 1210 of file qmail-smtpd.c.

rblinfo

stralloc rblinfo = {0}

Definition at line 271 of file qmail-smtpd.c.

rblsmtpd

char* rblsmtpd

Definition at line 272 of file qmail-smtpd.c.

rcptcount

int rcptcount = 0

Definition at line 543 of file qmail-smtpd.c.

rcptto

stralloc rcptto = {0}

Definition at line 533 of file qmail-smtpd.c.

rddr

stralloc rddr = {0}

Definition at line 531 of file qmail-smtpd.c.

relayclient

char* relayclient

Definition at line 159 of file qmail-smtpd.c.

remotehost

char* remotehost

Definition at line 155 of file qmail-smtpd.c.

remoteinfo

char* remoteinfo

Definition at line 156 of file qmail-smtpd.c.

remoteip

char* remoteip

Definition at line 154 of file qmail-smtpd.c.

sa

stralloc sa = {0}

Definition at line 94 of file qmail-smtpd.c.

seenauth

int seenauth = 0

Definition at line 254 of file qmail-smtpd.c.

seenhelo

int seenhelo = 0

Definition at line 171 of file qmail-smtpd.c.

seenmail

int seenmail = 0

Definition at line 538 of file qmail-smtpd.c.

seentls

int seentls = 0

Definition at line 258 of file qmail-smtpd.c.

smtpauth

int smtpauth = 0

Definition at line 253 of file qmail-smtpd.c.

smtpcommands

struct commands smtpcommands[]

Initial value:

= {
  { "rcpt", smtp_rcpt, 0 }
, { "mail", smtp_mail, 0 }
, { "data", smtp_data, flush }
, { "auth", smtp_auth, flush }
, { "quit", smtp_quit, flush }
, { "helo", smtp_helo, flush }
, { "ehlo", smtp_ehlo, flush }
, { "rset", smtp_rset, flush }
, { "help", smtp_help, flush }
, { "noop", err_noop, flush }
, { "vrfy", err_vrfy, flush }
, { "starttls", smtp_starttls, flush }
, { 0, err_unimpl, flush }
}

Definition at line 1693 of file qmail-smtpd.c.

starttls

int starttls = 0

Definition at line 257 of file qmail-smtpd.c.

tarpitcount

int tarpitcount = 0

Definition at line 246 of file qmail-smtpd.c.

tarpitdelay

int tarpitdelay = 0

Definition at line 247 of file qmail-smtpd.c.

timeout

unsigned long timeout = SMTP_TIMEOUT

Definition at line 60 of file qmail-smtpd.c.

tlsinfo

stralloc tlsinfo = {0}

Definition at line 166 of file qmail-smtpd.c.

tlsversion

char* tlsversion

Definition at line 260 of file qmail-smtpd.c.

ucspitls

char* ucspitls = 0

Definition at line 259 of file qmail-smtpd.c.

unique

char unique[FMT_ULONG+FMT_ULONG+3]

Definition at line 1452 of file qmail-smtpd.c.

user

stralloc user = {0}

Definition at line 534 of file qmail-smtpd.c.