Note that there was an incompatible config change for IPv6 users.
See the MESSAGE file for details.
pkgsrc change: delete a couple of patches that have been upstreamed
Proofpoint, Inc., and the Sendmail Consortium announce the availability
of sendmail 8.15.1. This release:
o offers more TLS related features,
o does not ignore temporary map lookup failures during header rewriting,
o uses uncompressed IPv6 addresses by default, which is an incompatible
change that requires to update IPv6 related configuration data.
as well as many other enhancements. For details see the release
notes below.
SENDMAIL RELEASE NOTES
This listing shows the version of the sendmail binary, the version
of the sendmail configuration files, the date of release, and a
summary of the changes in that release.
8.15.1/8.15.1 2014/12/06
SECURITY: Properly set the close-on-exec flag for file descriptors
(except stdin, stdout, and stderr) before executing mailers.
If header rewriting fails due to a temporary map lookup failure,
queue the mail for later retry instead of sending it
without rewriting the header. Note: this is done
while the mail is being sent and hence the transaction
is aborted, which only works for SMTP/LMTP mailers
hence the handling of temporary map failures is
suppressed for other mailers. SMTP/LMTP servers may
complain about aborted transactions when this problem
occurs.
See also "DNS Lookups" in sendmail/TUNING.
Incompatible Change: Use uncompressed IPv6 addresses by default,
i.e., they will not contain "::". For example,
instead of ::1 it will be 0:0:0:0:0:0:0:1. This
permits a zero subnet to have a more specific match,
such as different map entries for IPv6:0:0 vs IPv6:0.
This change requires that configuration data
(including maps, files, classes, custom ruleset,
etc) must use the same format, so make certain such
configuration data is updated before using 8.15.
As a very simple check search for patterns like
'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. If necessary,
the prior format can be retained by compiling with:
APPENDDEF(`conf_sendmail_ENVDEF', `-DIPV6_FULL=0')
in your devtools/Site/site.config.m4 file.
If debugging is turned on (-d0.14) also print the OpenSSL
versions, both build time and run time
(provided STARTTLS is compiled in).
If a connection to the MTA is dropped by the client before its
hostname can be validated, treat it as "may be forged",
so that the unvalidated hostname is not passed to a
milter in xxfi_connect().
Add a timeout for communication with socket map servers
which can be specified using the -d option.
Add a compile time option HESIOD_ALLOW_NUMERIC_LOGIN to allow
numeric logins even if HESIOD is enabled.
The new option CertFingerprintAlgorithm specifies the finger-
print algorithm (digest) to use for the presented cert.
If the option is not set, md5 is used and the macro
{cert_md5} contains the cert fingerprint.
However, if the option is set, the specified algorithm
(e.g., sha1) is used and the macro {cert_fp} contains
the cert fingerprint.
That is, as long as the option is not set, the behaviour
does not change, but otherwise, {cert_md5} is superseded
by {cert_fp} even if you set CertFingerprintAlgorithm
to md5.
The options ServerSSLOptions and ClientSSLOptions can be used
to set SSL options for the server and client side
respectively. See SSL_CTX_set_options(3) for a list.
Note: this change turns on SSL_OP_NO_SSLv2 and
SSL_OP_NO_TICKET for the client. See doc/op/op.me
for details.
A new map type "arpa" is available to reverse an IP (IPv4 or IPv6)
address. It returns the string for the PTR lookup, but
without trailing {ip6,in-addr}.arpa.
New operation mode 'C' just checks the configuration file, e.g.,
sendmail -C new.cf -bC
will perform a basic syntax/consistency check of new.cf.
The mailer flag 'I' is deprecated and will be removed in a
future version.
Allow local (not just TCP) socket connections to the server, e.g.,
O DaemonPortOptions=Family=local, Addr=/var/mta/server.sock
can be used.
If the new option MaxQueueAge is set to a value greater than zero,
entries in the queue will be retried during a queue run
only if the individual retry time has been reached which
is doubled for each attempt. The maximum retry time is
limited by the specified value.
New DontBlameSendmail option GroupReadableDefaultAuthInfoFile
to relax requirement for DefaultAuthInfo file.
Reset timeout after receiving a message to appropriate value if
STARTTLS is in use. Based on patch by Kelsey Cummings
of Sonic.net.
Report correct error messages from the LDAP library for a range of
small negative return values covering those used by OpenLDAP.
Fix compilation with Berkeley DB 5.0 and 6.0. Patch from
Allan E Johannesen of Worcester Polytechnic Institute.
CONFIG: FEATURE(`nopercenthack') takes one parameter: reject or
nospecial which describes whether to disallow "%" in the
local part of an address.
DEVTOOLS: Fix regression in auto-detection of libraries when only
shared libraries are available. Problem reported by
Bryan Costales.
LIBMILTER: Mark communication socket as close-on-exec in case
a user's filter starts other applications.
Based on patch from Paul Howarth.
Portability:
SunOS 5.12 has changed the API for sigwait(2) to conform
with XPG7. Based on patch from Roger Faulkner of Oracle.
Deleted Files:
libsm/path.c
This should be the last update during the freeze.
PR/48566 - Emmanuel Dreyfus -- typo in patch-aw leading to build failure
PR/48913 - Matthias Scheler -- libmilter fails on unprivileged builds
- remove some HTML cruft from netbsd-proto.mc
- stop trying to set file ownership and group during stage-install
- initialize sm_res earlier and test before calling res_ninit()
- clear SSL_OP_TLSEXT_PADDING by defualt to fix interoperability issues
- eliminate stray call to res_search()
- verified with nm that all deprecated resolver functions have been eradicated
The above should address the folling PRs:
- PR/47207 - Richard Palo -- attempt to set ownership when unprivileged
- PR/48566 - Emmanuel Dreyfus -- problem with TLS timeouts
- PR/48913 - Matthias Scheler -- attempt to set ownership when unprivileged
pkgsrc changes:
- consolidate several patches into site.config.m4
- pkgsrc LDFLAGS should always be used
- don't bother specifying file owner/group anywhere except in Makefile
- create include/sm/os/sm_os_netbsd.h to fix warnings and OS specific stuff
- install mail.local and rmail
- convert to use res_n* functions
- allows for linking against threaded libraries
- add a TODO file
- PR/35249 - Loren M. Lang
- can't find libraries on Linux, this should be fixed by using pkgsrc LDFLAGS
- PR/46694 - Makoto Fujiwara
- bring back netbsd-proto.mc from when sendmail was part of the base system
- PR/47207 - Richard Palo
- let pkgsrc infrastructure handle file ownership and group
- PR/48566 - Emmanuel Dreyfus
- always set _FFR_USE_GETPWNAM_ERRNO on NetBSD
- roll ffr_tls_1 and the suggested ffr_tls_ec into one new ffr_tls option
- not enabled by default because it changes behaviour
8.14.9/8.14.9 2014/05/21
SECURITY: Properly set the close-on-exec flag for file descriptors
(except stdin, stdout, and stderr) before executing mailers.
Fix a misformed comment in conf.c: "/*" within comment
which may cause a compilation error on some systems.
Problem reported by John Beck of Oracle.
DEVTOOLS: Fix regression in auto-detection of libraries when only
shared libraries are available. Problem reported by
Bryan Costales.
minor feature additions.
8.14.8/8.14.8 2014/01/26
Properly initialize all OpenSSL algorithms for versions before
OpenSSL 0.9.8o. Without this SHA2 algorithms may not
work properly, causing for example failures for certs
that use sha256WithRSAEncryption as signature algorithm.
When looking up hostnames, ensure only to return those records
for the requested family (AF_INET or AF_INET6).
On system that have NEEDSGETIPNODE and NETINET6
this may have failed and cause delivery problems.
Problem noted by Kees Cook.
A new mailer flag '!' is available to suppress an MH hack
that drops an explicit From: header if it is the
same as what sendmail would generate.
Add an FFR (for future release) to use uncompressed IPv6 addresses,
i.e., they will not contain "::". For example, instead
of ::1 it will be 0:0:0:0:0:0:0:1. This means that
configuration data (including maps, files, classes,
custom ruleset, etc) have to use the same format.
This will be turned on in 8.15. It can be enabled in 8.14
by compiling with:
APPENDDEF(`conf_sendmail_ENVDEF', `-D_FFR_IPV6_FULL')
in your devtools/Site/site.config.m4 file.
Add an additional case for the WorkAroundBrokenAAAA check when
dealing with broken nameservers by ignoring SERVFAIL
errors returned on T_AAAA (IPv6) lookups at delivery time.
Problem noted by Pavel Timofeev of OCS.
If available, pass LOGIN_SETCPUMASK and LOGIN_SETLOGINCLASS to
setusercontext() on deliveries as a different user.
Patch from Edward Tomasz Napierala from FreeBSD.
Avoid compiler warnings from a change in Cyrus-SASL 2.1.25.
Patch from Hajimu UMEMOTO from FreeBSD.
Add support for DHParameters 2048-bit primes.
CONFIG: Accept IPv6 literals when evaluating the HELO/EHLO argument
in FEATURE(`block_bad_helo'). Suggested by Andrey Chernov.
LIBSMDB: Add a missing check for malloc() in libsmdb/smndbm.c.
Patch from Bill Parker.
LIBSMDB: Fix minor memory leaks in libsmdb/ if allocations
fail. Patch from John Beck of Oracle.
Portability:
Add support for Darwin 12.x and 13.x (Mac OS X 10.8 and 10.9).
On Linux use socklen_t as the type for the 3rd argument
for getsockname/getpeername if the glibc version is at
least 2.1.
Added Files:
devtools/OS/Darwin.12.x
devtools/OS/Darwin.13.x
option for sendmail.cf. it is required in order to remove weak ciphers,
and enforce Forward Secrecy on modern MUA
Usage example:
O CipherList=DH@STRENGTH:HIGH:!MD5:!DES:!aNULL:!eNULL
8.14.7/8.14.7 2013/04/21
Drop support for IPv4-mapped IPv6 addresses to prevent the MTA
from using a mapped address over a legitimate IPv6 address
and to enforce the proper semantics over the IPv6
connection. Problem noted by Ulrich Sporlein.
Fix a regression introduced in 8.14.6: the wrong list of
macros was sent to a milter in the EHLO stage.
Problem found by Fabrice Bellet, reported via RedHat
(Jaroslav Skarvada).
Fix handling of ORCPT parameter for DSNs: xtext decoding
was not performed and a wrong syntax check was applied
to the "addr-type" field. Problem noted by Dan Lukes
of Obludarium.
Fix handling of NUL characters in the MIME conversion functions
so that message bodies containing them will be sent
on properly. Note: this usually also affects mails
that are not converted as those functions are used
for other purposes too. Problem noted by Elchonon
Edelson of Lockheed Martin.
Do not perform "duplicate" elimination of recipients if they
resolve to the error mailer using a temporary failure
(4xy) via ruleset 0. Problem noted by Akira Takahashi
of IIJ.
CONTRIB: Updated version of etrn.pl script from John Beck
of Oracle.
Portability:
Unlike gcc, clang doesn't apply full prototypes to K&R
definitions.
- will look at making recently requested changes in a subsequent commit
8.14.6/8.14.6 2012/12/23
Fix a regression introduced in 8.14.5: if a server offers
two AUTH lines, the MTA would not read them after
STARTTLS has been used and hence SMTP AUTH for
the client side would fail. Problem noted by Lena.
Do not cache hostnames internally in a non case sensitive way
as that may cause addresses to change from lower case
to upper case or vice versa. These header modifications
can cause problems with milters that rely on receiving
headers in the same way as they are being sent out such
as a DKIM signing milter.
If MaxQueueChildren is set then it was possible that new queue
runners could not be started anymore because an
internal counter was subject to a race condition.
If a milter decreases the timeout it waits for a communication
with the MTA, the MTA might experience a write() timeout.
In some situations, the resulting error might have been
ignored. Problem noted by Werner Wiethege.
Note: decreasing the communication timeout in a milter
should not be done without considering the potential
problems.
smfi_setsymlist() now properly sets the list of macros for
the milter which invoked it, instead of a global
list for all milters. Problem reported by
David Shrimpton of the University of Queensland.
If Timeout.resolver.retrans is set to a value larger than 20,
then resolver.retry was temporarily set to 0 for
gethostbyaddr() lookups. Now it is set to 1 instead.
Patch from Peter.
If sendmail could not lock the statistics file due to a system
error, and sendmail later sends a DSN for a mail that
triggered such an error, then sendmail tried to access
memory that was freed before (causing a crash on some
systems). Problem reported by Ryan Stone.
Do not log negative values for size= nor pri= to avoid confusing
log parsers, instead limit the values to LONG_MAX.
Account for an API change in newer versions of Cyrus-SASL.
Patch from Hajimu UMEMOTO from FreeBSD.
Do not try to resolve link-local addresses for IPv4 (just as it
is done for IPv6). Patch from John Beck of Oracle.
Improve logging of client and server STARTTLS connection failures
that may be due to incompatible cipher lists by including
the reason for the failure in a single log line. Suggested
by James Carey of Boeing.
Portability:
Add support for Darwin 11.x and 12.x (Mac OS X 10.7 and 10.8).
Add support for SunOS 5.12 (aka Solaris 12). Patch from
John Beck of Oracle.
8.14.4/8.14.4 2009/12/30
SECURITY: Handle bogus certificates containing NUL characters
in CNs by placing a string indicating a bad certificate
in the {cn_subject} or {cn_issuer} macro. Patch inspired
by Matthias Andree's changes for fetchmail.
During the generation of a queue identifier an integer overflow
could occur which might result in bogus characters
being used. Based on patch from John Vannoy of
Pepperdine University.
The value of headers, e.g., Precedence, Content-Type, et.al.,
was not processed correctly. Patch from Per Hedeland.
Between 8.11.7 and 8.12.0 the length limitation on a return
path was erroneously reduced from MAXNAME (256) to
MAXSHORTSTR (203). Patch from John Gardiner Myers
of Proofpoint; the problem was also noted by Steve
Hubert of University of Washington.
Prevent a crash when a hostname lookup returns a seemingly
valid result which contains a NULL pointer (this seems
to be happening on some Linux versions).
The process title was missing the current load average when
the MTA was delaying connections due to DelayLA.
Patch from Dick St.Peters of NetHeaven.
Do not reset the number of queue entries in shared memory if
only some of them are processed.
Fix overflow of an internal array when parsing some replies
from a milter. Problem found by Scott Rotondo
of Sun Microsystems.
If STARTTLS is turned off in the server (via M=S) then it
would not be initialized for use in the client either.
Patch from Kazuteru Okahashi of IIJ.
If a Diffie-Hellman cipher is selected for STARTTLS, the
handshake could fail with some TLS implementations
because the prime used by the server is not long enough.
Note: the initialization of the DSA/DH parameters for
the server can take a significant amount of time on slow
machines. This can be turned off by setting DHParameters
to none or a file (see doc/op/op.me). Patch from
Petr Lampa of the Brno University of Technology.
Fix handling of `b' modifier for DaemonPortOptions on little
endian machines for loopback address. Patch from
John Beck of Sun Microsystems.
Fix a potential memory leak in libsmdb/smdb1.c found by parfait.
Based on patch from Jonathan Gray of OpenBSD.
If a milter sets the reply code to "421" during the transfer
of the body, the SMTP server will terminate the SMTP session
with that error to match the behavior of the other callbacks.
Return EX_IOERR (instead of 0) if a mail submission fails due to
missing disk space in the mail queue. Based on patch
from Martin Poole of RedHat.
CONFIG: Using FEATURE(`ldap_routing')'s `nodomain' argument would
cause addresses not found in LDAP to be misparsed.
CONFIG: Using a CN restriction did not work for TLS_Clt as it
referred to a wrong macro. Patch from John Gardiner
Myers of Proofpoint.
CONFIG: The option relaytofulladdress of FEATURE(`access_db')
did not work if FEATURE(`relay_hosts_only') is used too.
Problem noted by Kristian Shaw.
CONFIG: The internal function lower() was broken and hence
strcasecmp() did not work either, which could cause
problems for some FEATURE()s if upper case arguments
were used. Patch from Vesa-Matti J Kari of the
University of Helsinki.
LIBMILTER: Fix internal check whether a milter application
is compiled against the same version of libmilter as
it is linked against (especially useful for dynamic
libraries).
LIBMILTER: Fix memory leak that occurred when smfi_setsymlist()
was used. Based on patch by Dan Lukes.
LIBMILTER: Document the effect of SMFIP_HDR_LEADSPC for filters
which add, insert, or replace headers. From Benjamin
Pineau.
LIBMILTER: Fix error messages which refer to "select()" to be
correct if SM_CONF_POLL is used. Based on patch from
John Nemeth.
LIBSM: Fix handling of LDAP search failures where the error is
carried in the search result itself, such as seen with
OpenLDAP proxy servers.
VACATION: Do not refer to a local variable outside its scope.
Based on patch from Mark Costlow of Southwest Cyberport.
Portability:
Enable HAVE_NANOSLEEP for SunOS 5.11. Patch from
John Beck of Sun Microsystems.
Drop NISPLUS from default SunOS 5.11 map definitions.
Patch from John Beck of Sun Microsystems.
had a chance to closely examine it, I would prefer it be done
slightly differently. Also, the patch patches multiple files in
direct contravention of pkgsrc guidelines. One of the files is
also patched by a different patch. Having multiple patches applied
to a single file makes maitenance much more difficult.
mail delivery with non local NSS passwd source, such as LDAP.
Stock LDAP uses getpwnam(3) to lookup recipients. As mandated by SUSv2,
getpwnam(3) does not set errno, so Sendmail has no way of distinguishing
a non existing user and an error with a remote NSS source. Therefore,
when the LDAP server goes down, Sendmail bounces mail to valid recipients.
A first workround is to remove F=w from Mlocal in sendmail.cf. This will
inhibit local recipient lookups, but it has a two drawbacks
- ~/.forward do not work anymore
- For multi-recipient mails with a single inexistent user, mail.local
cause a DSN reporting an error for all users, whereas all valid users
do get the message.
A better workaround is this patch, which calls getpwnam_r(3). This newer
API do set errno and do return an error code. Sendmail is therefore able
to detect that it had a transcient error in NSS, and it will react by
queuing the message. This is what you really want to happen when LDAP
is down.
I have not been able to get any feedback from Sendmail developers about
this patch.
This feature adds a -c switch to LDAPMAP definitions, which can be used to
specify a connection timeout (the equivalent of ldap.conf's bind_timeout)
Here is an usage example, in sendmail.cf:
O LDAPDefaultSpec=-w 3 -c 1 -l 3
If the server does not connect after 1 second (-c 1), we give up. If it does
not anwer after 3 seconds (-l 3), we give up with a temporary failure.
Using -c is the only way to avoid sendmail getting stuck against a half-dead
slapd, where the TCP port is in listening state but the server will not
serve anything.
patches to add it). Drop pax from the default USE_TOOLS list.
Make bsdtar the default for those places that wanted gtar to extract
long links etc, as bsdtar can be built of the tree.
particular, libmilter does *not* support "ldap", "sasl", etc. which are
supported by only sendmail. Do this through the following:
(1) Create libmilter/options.mk with support for the "inet6" option.
(2) Drop inclusion of options.mk from sendmail/Makefile.common and move
it to libmilter/Makefile and sendmail/Makefile.
While here, properly support IPv6 on FreeBSD, which like DragonFly has
getipnodebyname() in libc.
As a result of these changes, libmilter will no longer depend on
cyrus-sasl or openssl or openldap-client depending on what is set
in PKG_DEFAULT_OPTIONS.
Bump the PKGREVISION of libmilter to 1 due to the changed dependency list.
No change to sendmail as the binary package does not change.
8.14.1/8.14.1 2007/04/03
Even though a milter rejects a recipient the MTA will still keep
it in its list of recipients and deliver to it if the
transaction is accepted. This is a regression introduced
in 8.14.0 due to the change for SMFIP_RCPT_REJ. Bug
found by Andy Fiddaman.
The new DaemonPortOptions which begin with a lower case character
could not be set in 8.14.0.
If a server shut down the connection in response to a STARTTLS
command, sendmail would log a misleading error message
due to an internal inconsistency. Problem found by
Werner Wiethege.
Document how some sendmail.cf options change the behavior of mailq.
Noted by Paul Menchini of the North Carolina School of
Science and Mathematics.
CONFIG: Add confSOFT_BOUNCE m4 option for setting SoftBounce.
CONFIG: 8.14.0's RELEASE_NOTES failed to mention the addition
of the confMAX_NOOP_COMMANDS and confSHARED_MEMORY_KEY_FILE
m4 options for setting MaxNOOPCommands and
SharedMemoryKeyFile.
CONFIG: Add confMILTER_MACROS_EOH and confMILTER_MACROS_DATA m4
options for setting Milter.macros.eoh and Milter.macros.data.
CONTRIB: Use flock() and fcntl() in qtool.pl if necessary.
Patch from Daniel Carroll of Mesa State College.
LIBMILTER: Make sure an unknown command does not affect the
currently available macros. Problem found by Andy Fiddaman.
LIBMILTER: The MTA did not offer SMFIF_SETSYMLIST during option
negotiation. Problem reported by Bryan Costales.
LIBMILTER: Fix several minor errors in the documentation.
Patches from Bryan Costales.
PORTABILITY FIXES:
AIX 5.{1,2}: libsm/util.c failed to compile due to
redefinition of several macros, e.g., SIG_ERR.
Patch from Jim Pirzyk with assistance by Bob
Booth, University of Illinois at Urbana-Champaign.
Add support for QNX.6. Patch from Sean Boudreau of QNX
Software Systems.
New Files:
devtools/M4/depend/QNX6.m4
devtools/OS/QNX.6.x
include/sm/os/sm_os_qnx.h
New Files added in 8.14.0, but not shown in the release notes entry:
libmilter/docs/smfi_chgfrom.html
libmilter/docs/smfi_version.html
8.14.0/8.14.0 2007/01/31
Header field values are now 8 bit clean. Notes:
- header field names are still restricted to 7 bit.
- RFC 2822 allows only 7 bit (US-ASCII) characters in
headers.
Preserve spaces after the colon in a header. Previously, any
number of spaces after the colon would be changed to
exactly one space.
In some cases of deeply nested aliases/forwarding, mail can
be silently lost. Moreover, the MaxAliasRecursion
limit may be reached too early, e.g., the counter
may be off by a factor of 4 in case of a sequence of
.forward files that refer to others. Patch from
Motonori Nakamura of Kyoto University.
Fix a regression in 8.13.8: if InputMailFilters is set then
"sendmail -bs" can trigger an assertion because the
hostname of the client is undefined. It is now set
to "localhost" for the xxfi_connect() callback.
Avoid referencing a freed variable during cleanup when terminating.
Problem reported and diagnosed by Joe Maimon.
New option HeloName to set the name for the HELO/EHLO command.
Patch from Nik Clayton.
New option SoftBounce to issue temporary errors (4xy) instead of
permanent errors (5xy). This can be useful for testing.
New suboptions for DaemonPortOptions to set them individually
per daemon socket:
DeliveryMode DeliveryMode
refuseLA RefuseLA
delayLA DelayLA
queueLA QueueLA
children MaxDaemonChildren
New option -K for LDAP maps to replace %1 through %9 in the
lookup key with the LDAP escaped contents of the
arguments specified in the map lookup. Loosely based
on patch from Wolfgang Hottgenroth.
Log the time after which a greet_pause delay triggered. Patch
from Nik Clayton.
If a client is rejected via TCP wrapper or some other check
performed by validate_connection() (in conf.c) then do
not also invoke greet_pause. Problem noted by Jim Pirzyk
of the University of Illinois at Urbana-Champaign.
If a client terminates the SMTP connection during a pause
introduced by greet_pause, then a misleading message
was logged previously. Problem noted by Vernon Schryver
et.al., patch from Matej Vela.
New command "mstat" for control socket to provide "machine
readable" status.
New named config file rule check_eom which is called at the end
of a message, its parameter is the size of the message.
If the macro {addr_type} indicates that the current address
is a header address it also distinguishes between
recipient and sender addresses (as it is done for
envelope addresses).
When a macro is set in check_relay, then its value is accessible
by all transactions in the same SMTP session.
Increase size of key for ldap lookups to 1024 (MAXKEY).
New option MaxNOOPCommands to override default of 20 for the
number of "useless" commands before the SMTP server will
slow down responding.
New option SharedMemoryKeyFile: if shared memory support is
enabled, the MTA can be asked to select a shared memory
key itself by setting SharedMemoryKey to -1 and specifying
a file where to store the selected key.
Try to deal with open HTTP proxies that are used to send spam
by recognizing some commands from them. If the first command
from the client is GET, POST, CONNECT, or USER, then the
connection is terminated immediately.
New PrivacyOptions noactualrecipient to avoid putting
X-Actual-Recipient lines in DSNs revealing the actual
account that addresses map to. Patch from Dan Harkless.
New options B, z, and Z for DNS maps:
-B: specify a domain that is always appended to queries.
-z: specify the delimiter at which to cut off the result of
a query if it is too long.
-Z: specify the maximum number of entries to be concatenated
to form the result of a lookup.
New target "check" in the Makefile of libsm: instead of running tests
implicitly while building libsm, they must be explicitly
started by using "make check".
Fixed some inconsistent checks for NULL pointers that have been
reported by the SATURN tool which has been developed by
Isil Dillig and Thomas Dillig of Stanford University.
Fix a potential race condition caused by a signal handler for
terminated child processes. Problem noted by David F. Skoll.
When a milter deleted a recipient, that recipient could cause a
queue group selection. This has been disabled as it was not
intended.
New operator 'r' for the arith map to return a random number.
Patch from Motonori Nakamura of Kyoto University.
New compile time option MILTER_NO_NAGLE to turn off the Nagle
algorithm for communication with libmilter ("cork" on Linux),
which may improve the communication performance on some
operating systems. Patch from John Gardiner Myers of
Proofpoint.
If sendmail received input that contained a CR without subsequent LF
(thus violating RFC 2821 (2.3.7)), it could previously
generate an additional blank line in the output as the last
line.
Restarting persistent queue runners by sending a HUP signal to
the "queue control process" (QCP) works now.
Increase the length of an input line to 12288 to deal with
really long lines during SMTP AUTH negotiations.
Problem noted by Werner Wiethege.
If ARPANET mode (-ba) was selected STARTTLS would fail (due to
a missing initialization call for that case). Problem
noted by Neil Rickert of Northern Illinois University.
If sendmail is linked against a library that initializes Cyrus-SASL
before sendmail did it (such as libnss-ldap), then SMTP AUTH
could fail for the sendmail client. A patch by Moritz Both
works around the API design flaw of Cyrus-SASLv2.
CONFIG: Make it possible to unset the StatusFile option by
undefining STATUS_FILE. By not setting StatusFile,
the MTA will not attempt to open a statistics file on
each delivery.
CONFIG: New FEATURE(`require_rdns') to reject messages from SMTP
clients whose IP address does not have proper reverse DNS.
Contributed by Neil Rickert of Northern Illinois University
and John Beck of Sun Microsystems.
CONFIG: New FEATURE(`block_bad_helo') to reject messages from SMTP
clients which provide a HELO/EHLO argument which is either
unqualified, or is one of our own names (i.e., the server
name instead of the client name). Contributed by Neil
Rickert of Northern Illinois University and John Beck of
Sun Microsystems.
CONFIG: New FEATURE(`badmx') to reject envelope sender addresses
(MAIL) whose domain part resolves to a "bad" MX record.
Based on contribution from William Dell Wisner.
CONFIG: New macros SMTP_MAILER_LL and RELAY_MAILER_LL to override
the maximum line length of the smtp mailers.
CONFIG: New option `relaytofulladdress' for FEATURE(`access_db')
to allow entries in the access map to be of the form
To:user@example.com RELAY
CONFIG: New subsuboptions eoh and data to specify the list of
macros a milter should receive at those stages in the
SMTP dialogue.
CONFIG: New option confHELO_NAME for HeloName to set the name
for the HELO/EHLO command.
CONFIG: dnsbl and enhdnsbl can now also discard or quarantine
messages by using those values as second argument.
Patches from Nelson Fung.
CONTRIB: cidrexpand uses a hash symbol as comment character and
ignores everything after it unless it is in quotes or
preceeded by a backslash.
DEVTOOLS: New macro confMKDIR: if set to a program that creates
directories, then it used for "make install" to create
the required installation directories.
DEVTOOLS: New macro confCCLINK to specify the linker to use for
executables (defaults to confCC).
LIBMILTER: A new version of the milter API has been created that
has several changes which are listed below and documented
in the webpages reachable via libmilter/docs/index.html.
LIBMILTER: The meaning of the version macro SMFI_VERSION has been
changed. It now refers only to the version of libmilter,
not to the protocol version (which is used only internally,
it is not user/milter-programmer visible). Additionally,
a version function smfi_version() has been introduced such
that a milter program can check the libmilter version also
at runtime which is useful if a shared library is used.
LIBMILTER: A new callback xxfi_negotiate() can be used to
dynamically (i.e., at runtime) determine the available
protocol actions and features of the MTA and also to
specify which of these a milter wants to use. This allows
for more flexibility than hardcoding these flags in the
xxfi_flags field of the smfiDesc structure.
LIBMILTER: A new callback xxfi_data() is available so milters
can act on the DATA command.
LIBMILTER: A new callback xxfi_unknown() is available so milters
can receive also unknown SMTP commands.
LIBMILTER: A new return code SMFIS_NOREPLY has been added which
can be used by the xxfi_header() callback provided the
milter requested the SMFIP_NOHREPL protocol action.
LIBMILTER: The new return code SMFIS_SKIP can be used in the
xxfi_body() callback to skip over further body chunks
and directly advance to the xxfi_eom() callback. This
is useful if a milter can make a decision based on the
body chunks it already received without reading the entire
rest of the body and the milter wants to invoke functions
that are only available from the xxfi_eom() callback.
LIBMILTER: A new function smfi_addrcpt_par() can be used to add
new recipients including ESMTP parameters.
LIBMILTER: A new function smfi_chgfrom() can be used to change the
envelope sender including ESMTP parameters.
LIBMILTER: A milter can now request to be informed about rejected
recipients (RCPT) too. This requires to set the protocol
flag SMFIP_RCPT_REJ during option negotiation. Whether
a RCPT has been rejected can be checked by comparing the
value of the macro {rcpt_mailer} with "error".
LIBMILTER: A milter can now override the list of macros that it
wants to receive from the MTA for each protocol step
by invoking the function smfi_setsymlist() during option
negotiation.
LIBMILTER: A milter can receive header field values with all
leading spaces by requesting the SMFIP_HDR_LEADSPC
protocol action. Also, if the flag is set then the MTA
does not add a leading space to headers that are added,
inserted, or replaced.
LIBMILTER: If a milter sets the reply code to "421" for the HELO
callback, the SMTP server will terminate the SMTP session
with that error to match the behavior of all other callbacks.
New Files:
cf/feature/badmx.m4
cf/feature/block_bad_helo.m4
cf/feature/require_rdns.m4
devtools/M4/UNIX/check.m4
include/sm/misc.h
include/sm/sendmail.h
include/sm/tailq.h
libmilter/docs/smfi_addrcpt_par.html
libmilter/docs/smfi_setsymlist.html
libmilter/docs/xxfi_data.html
libmilter/docs/xxfi_negotiate.html
libmilter/docs/xxfi_unknown.html
libmilter/example.c
libmilter/monitor.c
libmilter/worker.c
libsm/memstat.c
libsm/t-memstat.c
libsm/t-qic.c
libsm/util.c
sendmail/daemon.h
sendmail/map.h
So, compile socketmap support in unconditionally (as the Perl scripts
are actually only examples of socketmap functionality; any language can be
used in reality). Remove socketmap related OPTIONs completely.
Don't install .cf files to /etc/mail directly at all; offer a message
about how to install them instead. Don't create /etc/mail/statistics.
Create mqueue dirs at install via MAKE_DIRS. Should fix PR pkg/20852.
Make sure SMRSH_CMDDIR gets to the compile defs. Fixes PR pkg/34513.
fixes by patch.)
While here, fix PR pkg/33821 by substituting pkgsrc's BINOWN, BINGRP, and
INSTALL definitions into the installed share/sendmail/cf/Makefile.
8.13.7/8.13.7 2006/06/14
A malformed MIME structure with many parts can cause sendmail to
crash while trying to send a mail due to a stack overflow,
e.g., if the stack size is limited (ulimit -s). This
happens because the recursion of the function mime8to7()
was not restricted. The function is called for MIME 8 to
7 bit conversion and also to enforce MaxMimeHeaderLength.
To work around this problem, recursive calls are limited to
a depth of MAXMIMENESTING (20); message content after this
limit is treated as opaque and is not checked further.
Problem noted by Frank Sheiness.
The changes to the I/O layer in 8.13.6 caused a regression for
SASL mechanisms that use the security layer, e.g.,
DIGEST-MD5. Problem noted by Robert Stampfli.
If a timeout occurs while reading a message (during the DATA phase)
a df file might have been left behind in the queue.
This was another side effect of the changes to the I/O
layer made in 8.13.6.
Several minor problems have been fixed that were found by a
Coverity scan of sendmail 8 as part of the NetBSD
distribution. See http://scan.coverity.com/
Note: the scan generated also a lot of "false positives",
e.g., "error" reports about situations that cannot happen.
Most of those code places are marked with lint(1) comments
like NOTREACHED, but Coverity does not understand those.
Hence an explicit assertion has been added in some cases
to avoid those false positives.
If the start of the sendmail daemon fails due to a configuration
error then in some cases shared memory segments or pid
files were not removed.
If DSN support is disabled via access_db, then related ESMTP
parameters for MAIL and RCPT should be rejected. Problem
reported by Akihiro Sagawa.
Enabling zlib compression in OpenSSL 0.9.8[ab] breaks the padding
bug work-around. Hence if sendmail is linked against
either of these versions and compression is available,
the padding bug work-around is turned off. Based on
patch from Victor Duchovni of Morgan Stanley.
CONFIG: FEATURE(`dnsbl') and FEATURE(`enhdnsbl') used
blackholes.mail-abuse.org as default domain for lookups,
however, that list is no longer available. To avoid
further problems, no default value is available anymore,
but an argument must be specified.
Portability:
Fix compilation on OSF/1 for sfsasl.c. Patch from
Pieter Bowman of the University of Utah.
A malformed MIME structure with many parts can cause sendmail to
crash while trying to send a mail due to a stack overflow,
e.g., if the stack size is limited (ulimit -s). This
happens because the recursion of the function mime8to7()
was not restricted. The function is called for MIME 8 to
7 bit conversion and also to enforce MaxMimeHeaderLength.
To work around this problem, recursive calls are limited to
a depth of MAXMIMENESTING (20); message content after this
limit is treated as opaque and is not checked further.
Use a better boundary check, which doesn't depend on PATH_MAX >> NAME_MAX.
Both changes are from DragonFly and have been reported upstream.
Install only man pages, not the catpages. The installation was
inconsistent before.
Bump revision. OK from tv@.
> 8.13.6/8.13.6 2006/03/22
> SECURITY: Replace unsafe use of setjmp(3)/longjmp(3) in the server
> and client side of sendmail with timeouts in the libsm I/O
> layer and fix problems in that code. Also fix handling of
> a buffer in sm_syslog() which could have been used as an
> attack vector to exploit the unsafe handling of
> setjmp(3)/longjmp(3) in combination with signals.
> Problem detected by Mark Dowd of ISS X-Force.
> Handle theoretical integer overflows that could triggered if
> the server accepted headers larger than the maximum
> (signed) integer value. This is prevented in the default
> configuration by restricting the size of a header, and on
> most machines memory allocations would fail before reaching
> those values. Problems found by Phil Brass of ISS.
> If a server returns 421 for an RSET command when trying to start
> another transaction in a session while sending mail, do
> not trigger an internal consistency check. Problem found
> by Allan E Johannesen of Worcester Polytechnic Institute.
> If a server returns a 5xy error code (other than 501) in response
> to a STARTTLS command despite the fact that it advertised
> STARTTLS and that the code is not valid according to RFC
> 2487 treat it nevertheless as a permanent failure instead
> of a protocol error (which has been changed to a
> temporary error in 8.13.5). Problem reported by Jeff
> A. Earickson of Colby College.
> Clear SMTP state after a HELO/EHLO command. Patch from John
> Myers of Proofpoint.
> Observe MinQueueAge option when gathering entries from the queue
> for sorting etc instead of waiting until the entries are
> processed. Patch from Brian Fundakowski Feldman.
> Set up TLS session cache to properly handle clients that try to
> resume a stored TLS session.
> Properly count the number of (direct) child processes such that
> a configured value (MaxDaemonChildren) is not exceeded.
> Based on patch from Attila Bruncsak.
> LIBMILTER: Remove superfluous backslash in macro definition
> (libmilter.h). Based on patch from Mike Kupfer of
> Sun Microsystems.
> LIBMILTER: Don't try to set SO_REUSEADDR on UNIX domain sockets.
> This generates an error message from libmilter on
> Solaris, though other systems appear to just discard the
> request silently.
> LIBMILTER: Deal with sigwait(2) implementations that return
> -1 and set errno instead of returning an error code
> directly. Patch from Chris Adams of HiWAAY Informations
> Services.
> Portability:
> Fix compilation checks for closefrom(3) and statvfs(2)
> in NetBSD. Problem noted by S. Moonesamy, patch from
> Andrew Brown.
Bump to nb2
This will change the internal version of sendmail to 8.13.5.20060308
> SECURITY: Replace unsafe use of setjmp(3)/longjmp(3) in the server
> and client side of sendmail with timeouts in the libsm I/O
> layer and fix problems in that code. Also fix handling of
> a buffer in sm_syslog() which could have been used as an
> attack vector to exploit the unsafe handling of
> setjmp(3)/longjmp(3) in combination with signals.
> Problem detected by Mark Dowd of ISS X-Force.
> Handle theoretical integer overflows that could triggered if
> the server accepted headers larger than the maximum
> (signed) integer value. This is prevented in the default
> configuration by restricting the size of a header, and on
> most machines memory allocations would fail before reaching
> those values. Problems found by Phil Brass of ISS.
backslashes anymore. A single backslash is enough. Changed the
definition in all affected packages. For those that are not caught, an
additional check is placed into bsd.pkginstall.mk.
