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openssh/openssh-7.7p1-ldap.patch
Marcus Meissner 3fed02069e Accepting request 922068 from home:hpjansson:branches:network 
- Version upgrade to 8.8p1
  * No changes for askpass, see main package changelog for
    details

- Version update to 8.8p1:
  = Security
  * sshd(8) from OpenSSH 6.2 through 8.7 failed to correctly initialise
    supplemental groups when executing an AuthorizedKeysCommand or
    AuthorizedPrincipalsCommand, where a AuthorizedKeysCommandUser or
    AuthorizedPrincipalsCommandUser directive has been set to run the
    command as a different user. Instead these commands would inherit
    the groups that sshd(8) was started with.
    Depending on system configuration, inherited groups may allow
    AuthorizedKeysCommand/AuthorizedPrincipalsCommand helper programs to
    gain unintended privilege.
    Neither AuthorizedKeysCommand nor AuthorizedPrincipalsCommand are
    enabled by default in sshd_config(5).
  = Potentially-incompatible changes
  * This release disables RSA signatures using the SHA-1 hash algorithm
    by default. This change has been made as the SHA-1 hash algorithm is
    cryptographically broken, and it is possible to create chosen-prefix
    hash collisions for <USD$50K.
    For most users, this change should be invisible and there is
    no need to replace ssh-rsa keys. OpenSSH has supported RFC8332
    RSA/SHA-256/512 signatures since release 7.2 and existing ssh-rsa keys
    will automatically use the stronger algorithm where possible.
    Incompatibility is more likely when connecting to older SSH
    implementations that have not been upgraded or have not closely tracked
    improvements in the SSH protocol. For these cases, it may be necessary
    to selectively re-enable RSA/SHA1 to allow connection and/or user
    authentication via the HostkeyAlgorithms and PubkeyAcceptedAlgorithms
    options.
  = New features
  * ssh(1): allow the ssh_config(5) CanonicalizePermittedCNAMEs
    directive to accept a "none" argument to specify the default
    behaviour.
  = Bugfixes
  * scp(1): when using the SFTP protocol, continue transferring files
    after a transfer error occurs, better matching original scp/rcp
    behaviour.
  * ssh(1): fixed a number of memory leaks in multiplexing,
  * ssh-keygen(1): avoid crash when using the -Y find-principals
    command.
  * A number of documentation and manual improvements, including
    bz#3340, PR139, PR215, PR241, PR257
- Additional changes from 8.7p1 release:
  = Potentially-incompatible changes
  * scp(1): this release changes the behaviour of remote to remote
    copies (e.g. "scp host-a:/path host-b:") to transfer through the
    local host by default. This was previously available via the -3
    flag. This mode avoids the need to expose credentials on the
    origin hop, avoids triplicate interpretation of filenames by the
    shell (by the local system, the copy origin and the destination)
    and, in conjunction with the SFTP support for scp(1) mentioned
    below, allows use of all authentication methods to the remote
    hosts (previously, only non-interactive methods could be used).
    A -R flag has been added to select the old behaviour.
  * ssh(1)/sshd(8): both the client and server are now using a
    stricter configuration file parser. The new parser uses more
    shell-like rules for quotes, space and escape characters. It is
    also more strict in rejecting configurations that include options
    lacking arguments. Previously some options (e.g. DenyUsers) could
    appear on a line with no subsequent arguments. This release will
    reject such configurations. The new parser will also reject
    configurations with unterminated quotes and multiple '='
    characters after the option name.
  * ssh(1): when using SSHFP DNS records for host key verification,
    ssh(1) will verify all matching records instead of just those
    with the specific signature type requested. This may cause host
    key verification problems if stale SSHFP records of a different
    or legacy signature type exist alongside other records for a
    particular host. bz#3322
  * ssh-keygen(1): when generating a FIDO key and specifying an
    explicit attestation challenge (using -Ochallenge), the challenge
    will now be hashed by the builtin security key middleware. This
    removes the (undocumented) requirement that challenges be exactly
    32 bytes in length and matches the expectations of libfido2.
  * sshd(8): environment="..." directives in authorized_keys files are
    now first-match-wins and limited to 1024 discrete environment
    variable names.
  = New features
  * scp(1): experimental support for transfers using the SFTP protocol
    as a replacement for the venerable SCP/RCP protocol that it has
    traditionally used. SFTP offers more predictable filename handling
    and does not require expansion of glob(3) patterns via the shell
    on the remote side.
  * sftp-server(8): add a protocol extension to support expansion of
    ~/ and ~user/ prefixed paths. This was added to support these
    paths when used by scp(1) while in SFTP mode.
  * ssh(1): add a ForkAfterAuthentication ssh_config(5) counterpart to
    the ssh(1) -f flag. GHPR231
  * ssh(1): add a StdinNull directive to ssh_config(5) that allows the
    config file to do the same thing as -n does on the ssh(1) command-
    line. GHPR231
  * ssh(1): add a SessionType directive to ssh_config, allowing the
    configuration file to offer equivalent control to the -N (no
    session) and -s (subsystem) command-line flags. GHPR231
  * ssh-keygen(1): allowed signers files used by ssh-keygen(1)
    signatures now support listing key validity intervals alongside
    they key, and ssh-keygen(1) can optionally check during signature
    verification whether a specified time falls inside this interval.
    This feature is intended for use by git to support signing and
    verifying objects using ssh keys.
  * ssh-keygen(8): support printing of the full public key in a sshsig
    signature via a -Oprint-pubkey flag.
  = Bugfixes
  * ssh(1)/sshd(8): start time-based re-keying exactly on schedule in
    the client and server mainloops. Previously the re-key timeout
    could expire but re-keying would not start until a packet was sent
    or received, causing a spin in select() if the connection was
    quiescent.
  * ssh-keygen(1): avoid Y2038 problem in printing certificate
    validity lifetimes. Dates past 2^31-1 seconds since epoch were
    displayed incorrectly on some platforms. bz#3329
  * scp(1): allow spaces to appear in usernames for local to remote
    and scp -3 remote to remote copies. bz#1164
  * ssh(1)/sshd(8): remove references to ChallengeResponseAuthentication
    in favour of KbdInteractiveAuthentication. The former is what was in
    SSHv1, the latter is what is in SSHv2 (RFC4256) and they were
    treated as somewhat but not entirely equivalent. We retain the old
    name as a deprecated alias so configuration files continue to work
    as well as a reference in the man page for people looking for it.
    bz#3303
  * ssh(1)/ssh-add(1)/ssh-keygen(1): fix decoding of X.509 subject name
    when extracting a key from a PKCS#11 certificate. bz#3327
  * ssh(1): restore blocking status on stdio fds before close. ssh(1)
    needs file descriptors in non-blocking mode to operate but it was
    not restoring the original state on exit. This could cause
    problems with fds shared with other programs via the shell,
    bz#3280 and GHPR246
  * ssh(1)/sshd(8): switch both client and server mainloops from
    select(3) to pselect(3). Avoids race conditions where a signal
    may arrive immediately before select(3) and not be processed until
    an event fires. bz#2158
  * ssh(1): sessions started with ControlPersist were incorrectly
    executing a shell when the -N (no shell) option was specified.
    bz#3290
  * ssh(1): check if IPQoS or TunnelDevice are already set before
    overriding. Prevents values in config files from overriding values
    supplied on the command line. bz#3319
  * ssh(1): fix debug message when finding a private key to match a
    certificate being attempted for user authentication. Previously it
    would print the certificate's path, whereas it was supposed to be
    showing the private key's path. GHPR247
  * sshd(8): match host certificates against host public keys, not
    private keys. Allows use of certificates with private keys held in
    a ssh-agent.  bz#3524
  * ssh(1): add a workaround for a bug in OpenSSH 7.4 sshd(8), which
    allows RSA/SHA2 signatures for public key authentication but fails
    to advertise this correctly via SSH2_MSG_EXT_INFO. This causes
    clients of these server to incorrectly match
    PubkeyAcceptedAlgorithmse and potentially refuse to offer valid
    keys. bz#3213
  * sftp(1)/scp(1): degrade gracefully if a sftp-server offers the
    limits@openssh.com extension but fails when the client tries to
    invoke it. bz#3318
  * ssh(1): allow ssh_config SetEnv to override $TERM, which is
    otherwise handled specially by the protocol. Useful in ~/.ssh/config
    to set TERM to something generic (e.g. "xterm" instead of
    "xterm-256color") for destinations that lack terminfo entries.
  * sftp-server(8): the limits@openssh.com extension was incorrectly
    marked as an operation that writes to the filesystem, which made it
    unavailable in sftp-server read-only mode. bz#3318
  * ssh(1): fix SEGV in UpdateHostkeys debug() message, triggered when
    the update removed more host keys than remain present.
  * Many manual page fixes.
- Additional changes from 8.6p1 release:
  = Security
  * sshd(8): OpenSSH 8.5 introduced the LogVerbose keyword. When this
    option was enabled with a set of patterns that activated logging
    in code that runs in the low-privilege sandboxed sshd process, the
    log messages were constructed in such a way that printf(3) format
    strings could effectively be specified the low-privilege code.
  = New features
  * sftp-server(8): add a new limits@openssh.com protocol extension
    that allows a client to discover various server limits, including
    maximum packet size and maximum read/write length.
  * sftp(1): use the new limits@openssh.com extension (when available)
    to select better transfer lengths in the client.
  * sshd(8): Add ModuliFile keyword to sshd_config to specify the
    location of the "moduli" file containing the groups for DH-GEX.
  * unit tests: Add a TEST_SSH_ELAPSED_TIMES environment variable to
    enable printing of the elapsed time in seconds of each test.
  = Bugfixes
  * ssh_config(5), sshd_config(5): sync CASignatureAlgorithms lists in
    manual pages with the current default. GHPR174
  * ssh(1): ensure that pkcs11_del_provider() is called before exit.
    GHPR234
  * ssh(1), sshd(8): fix problems in string->argv conversion. Multiple
    backslashes were not being dequoted correctly and quoted space in
    the middle of a string was being incorrectly split. GHPR223
  * ssh(1): return non-zero exit status when killed by signal; bz#3281
  * sftp-server(8): increase maximum SSH2_FXP_READ to match the maximum
    packet size. Also handle zero-length reads that are not explicitly
    banned by the spec.
- Additional changes from 8.5p1 release:
  = Security
  * ssh-agent(1): fixed a double-free memory corruption that was
    introduced in OpenSSH 8.2 . We treat all such memory faults as
    potentially exploitable. This bug could be reached by an attacker
    with access to the agent socket.
  = Potentially-incompatible changes
  * ssh(1), sshd(8): this release changes the first-preference signature
    algorithm from ECDSA to ED25519.
  * ssh(1), sshd(8): set the TOS/DSCP specified in the configuration
    for interactive use prior to TCP connect. The connection phase of
    the SSH session is time-sensitive and often explicitly interactive.
    The ultimate interactive/bulk TOS/DSCP will be set after
    authentication completes.
  * ssh(1), sshd(8): remove the pre-standardization cipher
    rijndael-cbc@lysator.liu.se. It is an alias for aes256-cbc before
    it was standardized in RFC4253 (2006), has been deprecated and
    disabled by default since OpenSSH 7.2 (2016) and was only briefly
    documented in ssh.1 in 2001.
  * ssh(1), sshd(8): update/replace the experimental post-quantum
    hybrid key exchange method based on Streamlined NTRU Prime coupled
    with X25519. The previous sntrup4591761x25519-sha512@tinyssh.org
    method is replaced with sntrup761x25519-sha512@openssh.com.
  * ssh(1): disable CheckHostIP by default. It provides insignificant
    benefits while making key rotation significantly more difficult,
    especially for hosts behind IP-based load-balancers.
  = New features
  * ssh(1): this release enables UpdateHostkeys by default subject to
    some conservative preconditions:
    - The key was matched in the UserKnownHostsFile (and not in the
      GlobalKnownHostsFile).
    - The same key does not exist under another name.
    - A certificate host key is not in use.
    - known_hosts contains no matching wildcard hostname pattern.
    - VerifyHostKeyDNS is not enabled.
    - The default UserKnownHostsFile is in use.
  * ssh(1), sshd(8): add a new LogVerbose configuration directive for
    that allows forcing maximum debug logging by file/function/line
    pattern-lists.
  * ssh(1): when prompting the user to accept a new hostkey, display
    any other host names/addresses already associated with the key.
  * ssh(1): allow UserKnownHostsFile=none to indicate that no
    known_hosts file should be used to identify host keys.
  * ssh(1): add a ssh_config KnownHostsCommand option that allows the
    client to obtain known_hosts data from a command in addition to
    the usual files.
  * ssh(1): add a ssh_config PermitRemoteOpen option that allows the
    client to restrict the destination when RemoteForward is used
    with SOCKS.
  * ssh(1): for FIDO keys, if a signature operation fails with a
    "incorrect PIN" reason and no PIN was initially requested from the
    user, then request a PIN and retry the operation. This supports
    some biometric devices that fall back to requiring PIN when reading
    of the biometric failed, and devices that require PINs for all
    hosted credentials.
  * sshd(8): implement client address-based rate-limiting via new
    sshd_config(5) PerSourceMaxStartups and PerSourceNetBlockSize
    directives that provide more fine-grained control on a per-origin
    address basis than the global MaxStartups limit.
  = Bugfixes
   * ssh(1): Prefix keyboard interactive prompts with "(user@host)" to
   make it easier to determine which connection they are associated
   with in cases like scp -3, ProxyJump, etc. bz#3224
  * sshd(8): fix sshd_config SetEnv directives located inside Match
    blocks. GHPR201
  * ssh(1): when requesting a FIDO token touch on stderr, inform the
    user once the touch has been recorded.
  * ssh(1): prevent integer overflow when ridiculously large
    ConnectTimeout values are specified, capping the effective value
    (for most platforms) at 24 days. bz#3229
  * ssh(1): consider the ECDSA key subtype when ordering host key
    algorithms in the client.
  * ssh(1), sshd(8): rename the PubkeyAcceptedKeyTypes keyword to
    PubkeyAcceptedAlgorithms. The previous name incorrectly suggested
    that it control allowed key algorithms, when this option actually
    specifies the signature algorithms that are accepted. The previous
    name remains available as an alias. bz#3253
  * ssh(1), sshd(8): similarly, rename HostbasedKeyTypes (ssh) and
    HostbasedAcceptedKeyTypes (sshd) to HostbasedAcceptedAlgorithms.
  * sftp-server(8): add missing lsetstat@openssh.com documentation
    and advertisement in the server's SSH2_FXP_VERSION hello packet.
  * ssh(1), sshd(8): more strictly enforce KEX state-machine by
    banning packet types once they are received. Fixes memleak caused
    by duplicate SSH2_MSG_KEX_DH_GEX_REQUEST (oss-fuzz #30078).
  * sftp(1): allow the full range of UIDs/GIDs for chown/chgrp on 32bit
    platforms instead of being limited by LONG_MAX. bz#3206
  * Minor man page fixes (capitalization, commas, etc.) bz#3223
  * sftp(1): when doing an sftp recursive upload or download of a
    read-only directory, ensure that the directory is created with
    write and execute permissions in the interim so that the transfer
    can actually complete, then set the directory permission as the
    final step. bz#3222
  * ssh-keygen(1): document the -Z, check the validity of its argument
    earlier and provide a better error message if it's not correct.
    bz#2879
  * ssh(1): ignore comments at the end of config lines in ssh_config,
    similar to what we already do for sshd_config. bz#2320
  * sshd_config(5): mention that DisableForwarding is valid in a
    sshd_config Match block. bz3239
  * sftp(1): fix incorrect sorting of "ls -ltr" under some
    circumstances. bz3248.
  * ssh(1), sshd(8): fix potential integer truncation of (unlikely)
    timeout values. bz#3250
  * ssh(1): make hostbased authentication send the signature algorithm
    in its SSH2_MSG_USERAUTH_REQUEST packets instead of the key type.
    This make HostbasedAcceptedAlgorithms do what it is supposed to -
    filter on signature algorithm and not key type.
- Rebased patches:
  * openssh-7.7p1-IPv6_X_forwarding.patch
  * openssh-7.7p1-X11_trusted_forwarding.patch
  * openssh-7.7p1-X_forward_with_disabled_ipv6.patch
  * openssh-7.7p1-cavstest-ctr.patch
  * openssh-7.7p1-cavstest-kdf.patch
  * openssh-7.7p1-disable_openssl_abi_check.patch
  * openssh-7.7p1-eal3.patch
  * openssh-7.7p1-enable_PAM_by_default.patch
  * openssh-7.7p1-fips.patch
  * openssh-7.7p1-fips_checks.patch
  * openssh-7.7p1-host_ident.patch
  * openssh-7.7p1-hostname_changes_when_forwarding_X.patch
  * openssh-7.7p1-ldap.patch
  * openssh-7.7p1-no_fork-no_pid_file.patch
  * openssh-7.7p1-pam_check_locks.patch
  * openssh-7.7p1-pts_names_formatting.patch
  * openssh-7.7p1-remove_xauth_cookies_on_exit.patch
  * openssh-7.7p1-seccomp_ipc_flock.patch
  * openssh-7.7p1-seccomp_stat.patch
  * openssh-7.7p1-send_locale.patch
  * openssh-7.7p1-sftp_force_permissions.patch
  * openssh-7.7p1-sftp_print_diagnostic_messages.patch
  * openssh-7.7p1-systemd-notify.patch
  * openssh-7.9p1-keygen-preserve-perms.patch
  * openssh-7.9p1-revert-new-qos-defaults.patch
  * openssh-8.0p1-gssapi-keyex.patch
  * openssh-8.1p1-audit.patch
  * openssh-8.1p1-seccomp-clock_gettime64.patch
  * openssh-8.1p1-seccomp-clock_nanosleep.patch
  * openssh-8.1p1-seccomp-clock_nanosleep_time64.patch
  * openssh-8.1p1-use-openssl-kdf.patch
  * openssh-8.4p1-vendordir.patch
  * openssh-fips-ensure-approved-moduli.patch
  * openssh-link-with-sk.patch
  * openssh-reenable-dh-group14-sha1-default.patch
  * openssh-whitelist-syscalls.patch
- Removed openssh-fix-ssh-copy-id.patch (fixed upstream).

OBS-URL: https://build.opensuse.org/request/show/922068
OBS-URL: https://build.opensuse.org/package/show/network/openssh?expand=0&rev=235
2021-10-07 08:06:58 +00:00

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# HG changeset patch
# Parent 860ce7cab52a11c12df044de6ffdcffa58c13f23
# Helper app for retrieving keys from a LDAP server
# by Jan F. Chadima <jchadima@redhat.com>
#
# patch for openbsd-compat/base64.* introduces preprocessor macro
# USE_INTERNAL_B64 intended to enforce using ssh supplied functions.
# (The additional -lldap/-llber introduced in the patch cause configure to
# discover the base64 functions in glibc (libresolv) and not to build the
# internal versions. ssh-keyconverter consequently fails to link as it lacks
# the proper flags, and libopenbsd-compat doesn't contain the b64_* functions)
Index: openssh-8.8p1/HOWTO.ldap-keys
===================================================================
--- /dev/null
+++ openssh-8.8p1/HOWTO.ldap-keys
@@ -0,0 +1,108 @@
+
+HOW TO START
+
+1) configure LDAP server
+ * Use LDAP server documentation
+2) add appropriate LDAP schema
+ * For OpenLDAP or SunONE Use attached schema, otherwise you have to create
+ it.
+ * LDAP user entry
+ User entry:
+ - attached to the 'ldapPublicKey' objectclass
+ - attached to the 'posixAccount' objectclass
+ - with a filled 'sshPublicKey' attribute
+3) insert users into LDAP
+ * Use LDAP Tree management tool as useful
+ * Entry in the LDAP server must respect 'posixAccount' and 'ldapPublicKey'
+ which are defined in core.schema and the additionnal lpk.schema.
+ * Example:
+ dn: uid=captain,ou=commanders,dc=enterprise,dc=universe
+ objectclass: top
+ objectclass: person
+ objectclass: organizationalPerson
+ objectclass: posixAccount
+ objectclass: ldapPublicKey
+ description: Jonathan Archer
+ userPassword: Porthos
+ cn: onathan Archer
+ sn: onathan Archer
+ uid: captain
+ uidNumber: 1001
+ gidNumber: 1001
+ homeDirectory: /home/captain
+ sshPublicKey: ssh-rss AAAAB3.... =captain@universe
+ sshPublicKey: command="kill -9 1" ssh-rss AAAAM5...
+4) on the ssh side set in sshd_config
+ * Set up the backend
+ AuthorizedKeysCommand "@LIBEXECDIR@/ssh-ldap-wrapper"
+ AuthorizedKeysCommandRunAs <appropriate user to run LDAP>
+ * Do not forget to set
+ PubkeyAuthentication yes
+ * Swith off unnecessary auth methods
+5) confugure ldap.conf
+ * Default ldap.conf is placed in /etc/ssh
+ * The configuration style is the same as other ldap based aplications
+6) if necessary edit ssh-ldap-wrapper
+ * There is a possibility to change ldap.conf location
+ * There are some debug options
+ * Example
+ @LIBEXECDIR@/ssh-ldap-wrapper -s -f /etc/ldap.conf -w -d >> /tmp/ldapdebuglog.txt
+
+HOW TO MIGRATE FROM LPK
+
+1) goto HOW TO START 4) .... the ldap schema is the same
+
+2) convert the group requests to the appropriate LDAP requests
+
+HOW TO SOLVE PROBLEMS
+
+1) use debug in sshd
+ * /usr/sbin/sshd -d -d -d -d
+2) use debug in ssh-ldap-helper
+ * ssh-ldap-helper -d -d -d -d -s <username>
+3) use tcpdump ... other ldap client etc.
+
+ADVANTAGES
+
+1) Blocking an user account can be done directly from LDAP (if sshd is using
+ PubkeyAuthentication + AuthorizedKeysCommand with ldap only).
+
+DISADVANTAGES
+
+1) LDAP must be well configured, getting the public key of some user is not
+ a problem, but if anonymous LDAP allows write to users dn, somebody could
+ replace some user's public key by his own and impersonate some of your users
+ in all your server farm -- be VERY CAREFUL.
+2) With incomplete PKI the MITM attack when sshd is requesting the public key,
+ could lead to a compromise of your servers allowing login as the
+ impersonated user.
+3) If LDAP server is down there may be no fallback on passwd auth.
+
+MISC.
+
+1) todo
+ * Possibility to reuse the ssh-ldap-helper.
+ * Tune the LDAP part to accept all possible LDAP configurations.
+
+2) differences from original lpk
+ * No LDAP code in sshd.
+ * Support for various LDAP platforms and configurations.
+ * LDAP is configured in separate ldap.conf file.
+
+3) docs/link
+ * http://pacsec.jp/core05/psj05-barisani-en.pdf
+ * http://fritz.potsdam.edu/projects/openssh-lpk/
+ * http://fritz.potsdam.edu/projects/sshgate/
+ * http://dev.inversepath.com/trac/openssh-lpk
+ * http://lam.sf.net/
+ ( http://lam.sourceforge.net/documentation/supportedSchemas.htm )
+
+4) contributors/ideas/greets
+ - Eric AUGE <eau@phear.org>
+ - Andrea Barisani <andrea@inversepath.com>
+ - Falk Siemonsmeier.
+ - Jacob Rief.
+ - Michael Durchgraf.
+ - frederic peters.
+ - Finlay dobbie.
+ - Stefan Fisher.
Index: openssh-8.8p1/Makefile.in
===================================================================
--- openssh-8.8p1.orig/Makefile.in
+++ openssh-8.8p1/Makefile.in
@@ -26,6 +26,8 @@ SFTP_SERVER=$(libexecdir)/sftp-server
SSH_KEYSIGN=$(libexecdir)/ssh-keysign
SSH_PKCS11_HELPER=$(libexecdir)/ssh-pkcs11-helper
SSH_SK_HELPER=$(libexecdir)/ssh-sk-helper
+SSH_LDAP_HELPER=$(libexecdir)/ssh-ldap-helper
+SSH_LDAP_WRAPPER=$(libexecdir)/ssh-ldap-wrapper
CAVSTEST_CTR=$(libexecdir)/cavstest-ctr
CAVSTEST_KDF=$(libexecdir)/cavstest-kdf
PRIVSEP_PATH=@PRIVSEP_PATH@
@@ -73,6 +75,9 @@ TARGETS=ssh$(EXEEXT) sshd$(EXEEXT) ssh-a
TARGETS += cavstest-ctr$(EXEEXT) cavstest-kdf$(EXEEXT)
+INSTALL_SSH_LDAP_HELPER=@INSTALL_SSH_LDAP_HELPER@
+TARGETS += ssh-ldap-helper$(EXEEXT)
+
XMSS_OBJS=\
ssh-xmss.o \
sshkey-xmss.o \
@@ -160,8 +165,8 @@ SFTPSERVER_OBJS=sftp-common.o sftp-serve
SFTP_OBJS= sftp.o progressmeter.o $(SFTP_CLIENT_OBJS)
-MANPAGES = moduli.5.out scp.1.out ssh-add.1.out ssh-agent.1.out ssh-keygen.1.out ssh-keyscan.1.out ssh.1.out sshd.8.out sftp-server.8.out sftp.1.out ssh-keysign.8.out ssh-pkcs11-helper.8.out ssh-sk-helper.8.out sshd_config.5.out ssh_config.5.out
-MANPAGES_IN = moduli.5 scp.1 ssh-add.1 ssh-agent.1 ssh-keygen.1 ssh-keyscan.1 ssh.1 sshd.8 sftp-server.8 sftp.1 ssh-keysign.8 ssh-pkcs11-helper.8 ssh-sk-helper.8 sshd_config.5 ssh_config.5
+MANPAGES = moduli.5.out scp.1.out ssh-add.1.out ssh-agent.1.out ssh-keygen.1.out ssh-keyscan.1.out ssh.1.out sshd.8.out sftp-server.8.out sftp.1.out ssh-keysign.8.out ssh-pkcs11-helper.8.out ssh-sk-helper.8.out sshd_config.5.out ssh_config.5.out ssh-ldap-helper.8.out ssh-ldap.conf.5.out
+MANPAGES_IN = moduli.5 scp.1 ssh-add.1 ssh-agent.1 ssh-keygen.1 ssh-keyscan.1 ssh.1 sshd.8 sftp-server.8 sftp.1 ssh-keysign.8 ssh-pkcs11-helper.8 ssh-sk-helper.8 sshd_config.5 ssh_config.5 ssh-ldap-helper.8 ssh-ldap.conf.5
MANTYPE = @MANTYPE@
CONFIGFILES=sshd_config.out ssh_config.out moduli.out
@@ -244,6 +249,9 @@ ssh-sk-helper$(EXEEXT): $(LIBCOMPAT) lib
ssh-keyscan$(EXEEXT): $(LIBCOMPAT) libssh.a $(SSHKEYSCAN_OBJS)
$(LD) -o $@ $(SSHKEYSCAN_OBJS) $(LDFLAGS) -lssh -lopenbsd-compat -lssh $(LIBS)
+ssh-ldap-helper$(EXEEXT): $(LIBCOMPAT) libssh.a ldapconf.o ldapbody.o ldapmisc.o ldap-helper.o
+ $(LD) -o $@ ldapconf.o ldapbody.o ldapmisc.o ldap-helper.o $(LDFLAGS) -lssh -lopenbsd-compat -lssh -lopenbsd-compat $(LIBS)
+
sftp-server$(EXEEXT): $(LIBCOMPAT) libssh.a $(SFTPSERVER_OBJS)
$(LD) -o $@ $(SFTPSERVER_OBJS) $(LDFLAGS) -lssh -lopenbsd-compat -lssh $(LIBS)
@@ -416,6 +424,10 @@ install-files:
$(INSTALL) -m 0755 $(STRIP_OPT) sshd$(EXEEXT) $(DESTDIR)$(sbindir)/sshd$(EXEEXT)
$(INSTALL) -m 4711 $(STRIP_OPT) ssh-keysign$(EXEEXT) $(DESTDIR)$(SSH_KEYSIGN)$(EXEEXT)
$(INSTALL) -m 0755 $(STRIP_OPT) ssh-pkcs11-helper$(EXEEXT) $(DESTDIR)$(SSH_PKCS11_HELPER)$(EXEEXT)
+ if test ! -z "$(INSTALL_SSH_LDAP_HELPER)" ; then \
+ $(INSTALL) -m 0755 $(STRIP_OPT) ssh-ldap-helper $(DESTDIR)$(SSH_LDAP_HELPER) ; \
+ $(INSTALL) -m 0755 ssh-ldap-wrapper $(DESTDIR)$(SSH_LDAP_WRAPPER) ; \
+ fi
$(INSTALL) -m 0755 $(STRIP_OPT) ssh-sk-helper$(EXEEXT) $(DESTDIR)$(SSH_SK_HELPER)$(EXEEXT)
$(INSTALL) -m 0755 $(STRIP_OPT) sftp$(EXEEXT) $(DESTDIR)$(bindir)/sftp$(EXEEXT)
$(INSTALL) -m 0755 $(STRIP_OPT) sftp-server$(EXEEXT) $(DESTDIR)$(SFTP_SERVER)$(EXEEXT)
@@ -435,6 +447,10 @@ install-files:
$(INSTALL) -m 644 sftp-server.8.out $(DESTDIR)$(mandir)/$(mansubdir)8/sftp-server.8
$(INSTALL) -m 644 ssh-keysign.8.out $(DESTDIR)$(mandir)/$(mansubdir)8/ssh-keysign.8
$(INSTALL) -m 644 ssh-pkcs11-helper.8.out $(DESTDIR)$(mandir)/$(mansubdir)8/ssh-pkcs11-helper.8
+ if test ! -z "$(INSTALL_SSH_LDAP_HELPER)" ; then \
+ $(INSTALL) -m 644 ssh-ldap-helper.8.out $(DESTDIR)$(mandir)/$(mansubdir)8/ssh-ldap-helper.8 ; \
+ $(INSTALL) -m 644 ssh-ldap.conf.5.out $(DESTDIR)$(mandir)/$(mansubdir)5/ssh-ldap.conf.5 ; \
+ fi
$(INSTALL) -m 644 ssh-sk-helper.8.out $(DESTDIR)$(mandir)/$(mansubdir)8/ssh-sk-helper.8
install-sysconf:
@@ -459,6 +475,13 @@ install-sysconf:
else \
echo "$(DESTDIR)$(sysconfdir)/moduli already exists, install will not overwrite"; \
fi
+ if test ! -z "$(INSTALL_SSH_LDAP_HELPER)" ; then \
+ if [ ! -f $(DESTDIR)$(sysconfdir)/ldap.conf ]; then \
+ $(INSTALL) -m 644 ldap.conf $(DESTDIR)$(sysconfdir)/ldap.conf; \
+ else \
+ echo "$(DESTDIR)$(sysconfdir)/ldap.conf already exists, install will not overwrite"; \
+ fi ; \
+ fi
host-key: ssh-keygen$(EXEEXT)
@if [ -z "$(DESTDIR)" ] ; then \
@@ -497,6 +520,8 @@ uninstall:
-rm -f $(DESTDIR)$(SSH_KEYSIGN)$(EXEEXT)
-rm -f $(DESTDIR)$(SSH_PKCS11_HELPER)$(EXEEXT)
-rm -f $(DESTDIR)$(SSH_SK_HELPER)$(EXEEXT)
+ -rm -f $(DESTDIR)$(SSH_LDAP_HELPER)$(EXEEXT)
+ -rm -f $(DESTDIR)$(SSH_LDAP_WRAPPER)$(EXEEXT)
-rm -f $(DESTDIR)$(mandir)/$(mansubdir)1/ssh.1
-rm -f $(DESTDIR)$(mandir)/$(mansubdir)1/scp.1
-rm -f $(DESTDIR)$(mandir)/$(mansubdir)1/ssh-add.1
@@ -509,6 +534,7 @@ uninstall:
-rm -f $(DESTDIR)$(mandir)/$(mansubdir)8/ssh-keysign.8
-rm -f $(DESTDIR)$(mandir)/$(mansubdir)8/ssh-pkcs11-helper.8
-rm -f $(DESTDIR)$(mandir)/$(mansubdir)8/ssh-sk-helper.8
+ -rm -f $(DESTDIR)$(mandir)/$(mansubdir)8/ssh-ldap-helper.8
regress-prep:
$(MKDIR_P) `pwd`/regress/unittests/test_helper
Index: openssh-8.8p1/configure.ac
===================================================================
--- openssh-8.8p1.orig/configure.ac
+++ openssh-8.8p1/configure.ac
@@ -1758,6 +1758,106 @@ AC_ARG_WITH([audit],
esac ]
)
+# Check whether user wants LDAP support
+LDAP_MSG="no"
+INSTALL_SSH_LDAP_HELPER=""
+AC_ARG_WITH(ldap,
+ [ --with-ldap[[=PATH]] Enable LDAP pubkey support (optionally in PATH)],
+ [
+ if test "x$withval" != "xno" ; then
+
+ INSTALL_SSH_LDAP_HELPER="yes"
+ CPPFLAGS="$CPPFLAGS -DLDAP_DEPRECATED"
+
+ if test "x$withval" != "xyes" ; then
+ CPPFLAGS="$CPPFLAGS -I${withval}/include"
+ LDFLAGS="$LDFLAGS -L${withval}/lib"
+ fi
+
+ AC_DEFINE([WITH_LDAP_PUBKEY], 1, [Enable LDAP pubkey support])
+ LDAP_MSG="yes"
+
+ AC_CHECK_HEADERS(lber.h)
+ AC_CHECK_HEADERS(ldap.h, , AC_MSG_ERROR(could not locate <ldap.h>))
+ AC_CHECK_HEADERS(ldap_ssl.h)
+
+ AC_ARG_WITH(ldap-lib,
+ [ --with-ldap-lib=type select ldap library [auto|netscape5|netscape4|netscape3|umich|openldap]])
+
+ if test -z "$with_ldap_lib"; then
+ with_ldap_lib=auto
+ fi
+
+ if test -z "$found_ldap_lib" -a \( $with_ldap_lib = auto -o $with_ldap_lib = umich -o $with_ldap_lib = openldap \); then
+ AC_CHECK_LIB(lber, main, LIBS="-llber $LIBS" found_ldap_lib=yes)
+ AC_CHECK_LIB(ldap, main, LIBS="-lldap $LIBS" found_ldap_lib=yes)
+ fi
+
+ if test -z "$found_ldap_lib" -a \( $with_ldap_lib = auto -o $with_ldap_lib = netscape5 \); then
+ AC_CHECK_LIB(ldap50, main, LIBS="-lldap50 -lssldap50 -lssl3 -lnss3 -lnspr4 -lprldap50 -lplc4 -lplds4 $LIBS" found_ldap_lib=yes)
+ fi
+
+ if test -z "$found_ldap_lib" -a \( $with_ldap_lib = auto -o $with_ldap_lib = netscape4 \); then
+ AC_CHECK_LIB(ldapssl41, main, LIBS="-lldapssl41 -lplc3 -lplds3 -lnspr3 $LIBS" found_ldap_lib=yes)
+ if test -z "$found_ldap_lib"; then
+ AC_CHECK_LIB(ldapssl40, main, LIBS="-lldapssl40 $LIBS" found_ldap_lib=yes)
+ fi
+ if test -z "$found_ldap_lib"; then
+ AC_CHECK_LIB(ldap41, main, LIBS="-lldap41 $LIBS" found_ldap_lib=yes)
+ fi
+ if test -z "$found_ldap_lib"; then
+ AC_CHECK_LIB(ldap40, main, LIBS="-lldap40 $LIBS" found_ldap_lib=yes)
+ fi
+ fi
+
+ if test -z "$found_ldap_lib" -a \( $with_ldap_lib = auto -o $with_ldap_lib = netscape3 \); then
+ AC_CHECK_LIB(ldapssl30, main, LIBS="-lldapssl30 $LIBS" found_ldap_lib=yes)
+ fi
+
+ if test -z "$found_ldap_lib"; then
+ AC_MSG_ERROR(could not locate a valid LDAP library)
+ fi
+
+ AC_MSG_CHECKING([for working LDAP support])
+ AC_TRY_COMPILE(
+ [#include <sys/types.h>
+ #include <ldap.h>],
+ [(void)ldap_init(0, 0);],
+ [AC_MSG_RESULT(yes)],
+ [
+ AC_MSG_RESULT(no)
+ AC_MSG_ERROR([** Incomplete or missing ldap libraries **])
+ ])
+ AC_CHECK_FUNCS( \
+ ldap_init \
+ ldap_get_lderrno \
+ ldap_set_lderrno \
+ ldap_parse_result \
+ ldap_memfree \
+ ldap_controls_free \
+ ldap_set_option \
+ ldap_get_option \
+ ldapssl_init \
+ ldap_start_tls_s \
+ ldap_pvt_tls_set_option \
+ ldap_initialize \
+ )
+ AC_CHECK_FUNCS(ldap_set_rebind_proc,
+ AC_MSG_CHECKING([number arguments of ldap_set_rebind_proc])
+ AC_TRY_COMPILE(
+ [#include <lber.h>
+ #include <ldap.h>],
+ [ldap_set_rebind_proc(0, 0, 0);],
+ [ac_cv_ldap_set_rebind_proc=3],
+ [ac_cv_ldap_set_rebind_proc=2])
+ AC_MSG_RESULT($ac_cv_ldap_set_rebind_proc)
+ AC_DEFINE(LDAP_SET_REBIND_PROC_ARGS, $ac_cv_ldap_set_rebind_proc, [number arguments of ldap_set_rebind_proc])
+ )
+ fi
+ ]
+)
+AC_SUBST(INSTALL_SSH_LDAP_HELPER)
+
AC_ARG_WITH([pie],
[ --with-pie Build Position Independent Executables if possible], [
if test "x$withval" = "xno"; then
Index: openssh-8.8p1/ldap-helper.c
===================================================================
--- /dev/null
+++ openssh-8.8p1/ldap-helper.c
@@ -0,0 +1,155 @@
+/* $OpenBSD: ssh-pka-ldap.c,v 1.1 2009/12/03 03:34:42 jfch Exp $ */
+/*
+ * Copyright (c) 2009 Jan F. Chadima. All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+#include "ldapincludes.h"
+#include "log.h"
+#include "misc.h"
+#include "xmalloc.h"
+#include "ldapconf.h"
+#include "ldapbody.h"
+#include <string.h>
+#include <unistd.h>
+
+static int config_debug = 0;
+int config_exclusive_config_file = 0;
+static char *config_file_name = "/etc/ssh/ldap.conf";
+static char *config_single_user = NULL;
+static int config_verbose = SYSLOG_LEVEL_VERBOSE;
+int config_warning_config_file = 0;
+extern char *__progname;
+
+static void
+usage(void)
+{
+ fprintf(stderr, "usage: %s [options]\n",
+ __progname);
+ fprintf(stderr, "Options:\n");
+ fprintf(stderr, " -d Output the log messages to stderr.\n");
+ fprintf(stderr, " -e Check the config file for unknown commands.\n");
+ fprintf(stderr, " -f file Use alternate config file (default is /etc/ssh/ldap.conf).\n");
+ fprintf(stderr, " -s user Do not demonize, send the user's key to stdout.\n");
+ fprintf(stderr, " -v Increase verbosity of the debug output (implies -d).\n");
+ fprintf(stderr, " -w Warn on unknown commands in the config file.\n");
+ exit(1);
+}
+
+/*
+ * Main program for the ssh pka ldap agent.
+ */
+
+int
+main(int ac, char **av)
+{
+ int opt;
+ FILE *outfile = NULL;
+
+ __progname = ssh_get_progname(av[0]);
+
+ log_init(__progname, SYSLOG_LEVEL_DEBUG3, SYSLOG_FACILITY_AUTH, 0);
+
+ /*
+ * Initialize option structure to indicate that no values have been
+ * set.
+ */
+ initialize_options();
+
+ /* Parse command-line arguments. */
+ while ((opt = getopt(ac, av, "def:s:vw")) != -1) {
+ switch (opt) {
+ case 'd':
+ config_debug = 1;
+ break;
+
+ case 'e':
+ config_exclusive_config_file = 1;
+ config_warning_config_file = 1;
+ break;
+
+ case 'f':
+ config_file_name = optarg;
+ break;
+
+ case 's':
+ config_single_user = optarg;
+ outfile = fdopen (dup (fileno (stdout)), "w");
+ break;
+
+ case 'v':
+ config_debug = 1;
+ if (config_verbose < SYSLOG_LEVEL_DEBUG3)
+ config_verbose++;
+ break;
+
+ case 'w':
+ config_warning_config_file = 1;
+ break;
+
+ case '?':
+ default:
+ usage();
+ break;
+ }
+ }
+
+ /* Initialize loging */
+ log_init(__progname, config_verbose, SYSLOG_FACILITY_AUTH, config_debug);
+
+ if (ac != optind)
+ fatal ("illegal extra parameter %s", av[1]);
+
+ /* Ensure that fds 0 and 2 are open or directed to /dev/null */
+ if (config_debug == 0)
+ sanitise_stdfd();
+
+ /* Read config file */
+ read_config_file(config_file_name);
+ fill_default_options();
+ if (config_verbose == SYSLOG_LEVEL_DEBUG3) {
+ debug3 ("=== Configuration ===");
+ dump_config();
+ debug3 ("=== *** ===");
+ }
+
+ ldap_checkconfig();
+ ldap_do_connect();
+
+ if (config_single_user) {
+ process_user (config_single_user, outfile);
+ } else {
+ usage();
+ fatal ("Not yet implemented");
+/* TODO
+ * open unix socket a run the loop on it
+ */
+ }
+
+ ldap_do_close();
+ return 0;
+}
+
+/* Ugly hack */
+void *buffer_get_string(struct sshbuf *b, u_int *l) { return NULL; }
+void buffer_put_string(struct sshbuf *b, const void *f, u_int l) {}
+
Index: openssh-8.8p1/ldap-helper.h
===================================================================
--- /dev/null
+++ openssh-8.8p1/ldap-helper.h
@@ -0,0 +1,32 @@
+/* $OpenBSD: ldap-helper.h,v 1.1 2009/12/03 03:34:42 jfch Exp $ */
+/*
+ * Copyright (c) 2009 Jan F. Chadima. All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 LDAP_HELPER_H
+#define LDAP_HELPER_H
+
+extern int config_exclusive_config_file;
+extern int config_warning_config_file;
+
+#endif /* LDAP_HELPER_H */
Index: openssh-8.8p1/ldap.conf
===================================================================
--- /dev/null
+++ openssh-8.8p1/ldap.conf
@@ -0,0 +1,88 @@
+# $Id: openssh-5.5p1-ldap.patch,v 1.3 2010/07/07 13:48:36 jfch2222 Exp $
+#
+# This is the example configuration file for the OpenSSH
+# LDAP backend
+#
+# see ssh-ldap.conf(5)
+#
+
+# URI with your LDAP server name. This allows to use
+# Unix Domain Sockets to connect to a local LDAP Server.
+#uri ldap://127.0.0.1/
+#uri ldaps://127.0.0.1/
+#uri ldapi://%2fvar%2frun%2fldapi_sock/
+# Note: %2f encodes the '/' used as directory separator
+
+# Another way to specify your LDAP server is to provide an
+# host name and the port of our LDAP server. Host name
+# must be resolvable without using LDAP.
+# Multiple hosts may be specified, each separated by a
+# space. How long nss_ldap takes to failover depends on
+# whether your LDAP client library supports configurable
+# network or connect timeouts (see bind_timelimit).
+#host 127.0.0.1
+
+# The port.
+# Optional: default is 389.
+#port 389
+
+# The distinguished name to bind to the server with.
+# Optional: default is to bind anonymously.
+#binddn cn=openssh_keys,dc=example,dc=org
+
+# The credentials to bind with.
+# Optional: default is no credential.
+#bindpw TopSecret
+
+# The distinguished name of the search base.
+#base dc=example,dc=org
+
+# The LDAP version to use (defaults to 3
+# if supported by client library)
+#ldap_version 3
+
+# The search scope.
+#scope sub
+#scope one
+#scope base
+
+# Search timelimit
+#timelimit 30
+
+# Bind/connect timelimit
+#bind_timelimit 30
+
+# Reconnect policy: hard (default) will retry connecting to
+# the software with exponential backoff, soft will fail
+# immediately.
+#bind_policy hard
+
+# SSL setup, may be implied by URI also.
+#ssl no
+#ssl on
+#ssl start_tls
+
+# OpenLDAP SSL options
+# Require and verify server certificate (yes/no)
+# Default is to use libldap's default behavior, which can be configured in
+# /etc/openldap/ldap.conf using the TLS_REQCERT setting. The default for
+# OpenLDAP 2.0 and earlier is "no", for 2.1 and later is "yes".
+#tls_checkpeer hard
+
+# CA certificates for server certificate verification
+# At least one of these are required if tls_checkpeer is "yes"
+#tls_cacertfile /etc/ssl/ca.cert
+#tls_cacertdir /etc/pki/tls/certs
+
+# Seed the PRNG if /dev/urandom is not provided
+#tls_randfile /var/run/egd-pool
+
+# SSL cipher suite
+# See man ciphers for syntax
+#tls_ciphers TLSv1
+
+# Client certificate and key
+# Use these, if your server requires client authentication.
+#tls_cert
+#tls_key
+
Index: openssh-8.8p1/ldapbody.c
===================================================================
--- /dev/null
+++ openssh-8.8p1/ldapbody.c
@@ -0,0 +1,503 @@
+/* $OpenBSD: ldapbody.c,v 1.1 2009/12/03 03:34:42 jfch Exp $ */
+/*
+ * Copyright (c) 2009 Jan F. Chadima. All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+#include "ldapincludes.h"
+#include "log.h"
+#include "xmalloc.h"
+#include "ldapconf.h"
+#include "ldapmisc.h"
+#include "ldapbody.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#ifndef FALSE
+# define FALSE 0
+#endif
+
+#ifndef TRUE
+# define TRUE 1
+#endif
+
+#define LDAPSEARCH_FORMAT "(&(objectclass=posixAccount)(objectclass=ldapPublicKey)(uid=%s)%s)"
+#define PUBKEYATTR "sshPublicKey"
+#define LDAP_LOGFILE "%s/ldap.%d"
+
+static FILE *logfile = NULL;
+static LDAP *ld;
+
+static char *attrs[] = {
+ PUBKEYATTR,
+ NULL
+};
+
+void
+ldap_checkconfig (void)
+{
+#ifdef HAVE_LDAP_INITIALIZE
+ if (options.host == NULL && options.uri == NULL)
+#else
+ if (options.host == NULL)
+#endif
+ fatal ("missing \"host\" in config file");
+}
+
+#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
+static int
+_rebind_proc (LDAP * ld, LDAP_CONST char *url, int request, ber_int_t msgid)
+{
+ struct timeval timeout;
+ int rc;
+#if defined(HAVE_LDAP_PARSE_RESULT) && defined(HAVE_LDAP_CONTROLS_FREE)
+ LDAPMessage *result;
+#endif /* HAVE_LDAP_PARSE_RESULT && HAVE_LDAP_CONTROLS_FREE */
+
+ debug2 ("Doing LDAP rebind to %s", options.binddn);
+ if (options.ssl == SSL_START_TLS) {
+ if ((rc = ldap_start_tls_s (ld, NULL, NULL)) != LDAP_SUCCESS) {
+ error ("ldap_starttls_s: %s", ldap_err2string (rc));
+ return LDAP_OPERATIONS_ERROR;
+ }
+ }
+
+#if !defined(HAVE_LDAP_PARSE_RESULT) || !defined(HAVE_LDAP_CONTROLS_FREE)
+ return ldap_simple_bind_s (ld, options.binddn, options.bindpw);
+#else
+ if (ldap_simple_bind(ld, options.binddn, options.bindpw) < 0)
+ fatal ("ldap_simple_bind %s", ldap_err2string (ldap_get_lderrno (ld, 0, 0)));
+
+ timeout.tv_sec = options.bind_timelimit;
+ timeout.tv_usec = 0;
+ result = NULL;
+ if ((rc = ldap_result (ld, msgid, FALSE, &timeout, &result)) < 1) {
+ error ("ldap_result %s", ldap_err2string (ldap_get_lderrno (ld, 0, 0)));
+ ldap_msgfree (result);
+ return LDAP_OPERATIONS_ERROR;
+ }
+ debug3 ("LDAP rebind to %s succesfull", options.binddn);
+ return rc;
+#endif
+}
+#else
+
+static int
+_rebind_proc (LDAP * ld, char **whop, char **credp, int *methodp, int freeit)
+{
+ if (freeit)
+ return LDAP_SUCCESS;
+
+ *whop = strdup (options.binddn);
+ *credp = strdup (options.bindpw);
+ *methodp = LDAP_AUTH_SIMPLE;
+ debug2 ("Doing LDAP rebind for %s", *whop);
+ return LDAP_SUCCESS;
+}
+#endif
+
+void
+ldap_do_connect(void)
+{
+ int rc, msgid, ld_errno = 0;
+ struct timeval timeout;
+#if defined(HAVE_LDAP_PARSE_RESULT) && defined(HAVE_LDAP_CONTROLS_FREE)
+ int parserc;
+ LDAPMessage *result;
+ LDAPControl **controls;
+ int reconnect = 0;
+#endif /* HAVE_LDAP_PARSE_RESULT && HAVE_LDAP_CONTROLS_FREE */
+
+ debug ("LDAP do connect");
+
+retry:
+ if (reconnect) {
+ debug3 ("Reconnecting with ld_errno %d", ld_errno);
+ if (options.bind_policy == 0 ||
+ (ld_errno != LDAP_SERVER_DOWN && ld_errno != LDAP_TIMEOUT) ||
+ reconnect > 5)
+ fatal ("Cannot connect to LDAP server");
+
+ if (reconnect > 1)
+ sleep (reconnect - 1);
+
+ if (ld != NULL) {
+ ldap_unbind (ld);
+ ld = NULL;
+ }
+ logit("reconnecting to LDAP server...");
+ }
+
+ if (ld == NULL) {
+ int rc;
+ struct timeval tv;
+
+#ifdef HAVE_LDAP_SET_OPTION
+ if (options.debug > 0) {
+#ifdef LBER_OPT_LOG_PRINT_FILE
+ if (options.logdir) {
+ char *logfilename;
+ int logfilenamelen;
+
+ logfilenamelen = strlen (LDAP_LOGFILE) + strlen ("000000") + strlen (options.logdir);
+ logfilename = xmalloc (logfilenamelen);
+ snprintf (logfilename, logfilenamelen, LDAP_LOGFILE, options.logdir, (int) getpid ());
+ logfilename[logfilenamelen - 1] = 0;
+ if ((logfile = fopen (logfilename, "a")) == NULL)
+ fatal ("cannot append to %s: %s", logfilename, strerror (errno));
+ debug3 ("LDAP debug into %s", logfilename);
+ free (logfilename);
+ ber_set_option (NULL, LBER_OPT_LOG_PRINT_FILE, logfile);
+ }
+#endif
+ if (options.debug) {
+#ifdef LBER_OPT_DEBUG_LEVEL
+ ber_set_option (NULL, LBER_OPT_DEBUG_LEVEL, &options.debug);
+#endif /* LBER_OPT_DEBUG_LEVEL */
+#ifdef LDAP_OPT_DEBUG_LEVEL
+ ldap_set_option (NULL, LDAP_OPT_DEBUG_LEVEL, &options.debug);
+#endif /* LDAP_OPT_DEBUG_LEVEL */
+ debug3 ("Set LDAP debug to %d", options.debug);
+ }
+ }
+#endif /* HAVE_LDAP_SET_OPTION */
+
+ ld = NULL;
+#ifdef HAVE_LDAPSSL_INIT
+ if (options.host != NULL) {
+ if (options.ssl_on == SSL_LDAPS) {
+ if ((rc = ldapssl_client_init (options.sslpath, NULL)) != LDAP_SUCCESS)
+ fatal ("ldapssl_client_init %s", ldap_err2string (rc));
+ debug3 ("LDAPssl client init");
+ }
+
+ if (options.ssl_on != SSL_OFF) {
+ if ((ld = ldapssl_init (options.host, options.port, TRUE)) == NULL)
+ fatal ("ldapssl_init failed");
+ debug3 ("LDAPssl init");
+ }
+ }
+#endif /* HAVE_LDAPSSL_INIT */
+
+ /* continue with opening */
+ if (ld == NULL) {
+#if defined (HAVE_LDAP_START_TLS_S) || (defined(HAVE_LDAP_SET_OPTION) && defined(LDAP_OPT_X_TLS))
+ /* Some global TLS-specific options need to be set before we create our
+ * session context, so we set them here. */
+
+#ifdef LDAP_OPT_X_TLS_RANDOM_FILE
+ /* rand file */
+ if (options.tls_randfile != NULL) {
+ if ((rc = ldap_set_option (NULL, LDAP_OPT_X_TLS_RANDOM_FILE,
+ options.tls_randfile)) != LDAP_SUCCESS)
+ fatal ("ldap_set_option(LDAP_OPT_X_TLS_RANDOM_FILE): %s",
+ ldap_err2string (rc));
+ debug3 ("Set TLS random file %s", options.tls_randfile);
+ }
+#endif /* LDAP_OPT_X_TLS_RANDOM_FILE */
+
+ /* ca cert file */
+ if (options.tls_cacertfile != NULL) {
+ if ((rc = ldap_set_option (NULL, LDAP_OPT_X_TLS_CACERTFILE,
+ options.tls_cacertfile)) != LDAP_SUCCESS)
+ error ("ldap_set_option(LDAP_OPT_X_TLS_CACERTFILE): %s",
+ ldap_err2string (rc));
+ debug3 ("Set TLS CA cert file %s ", options.tls_cacertfile);
+ }
+
+ /* ca cert directory */
+ if (options.tls_cacertdir != NULL) {
+ if ((rc = ldap_set_option (NULL, LDAP_OPT_X_TLS_CACERTDIR,
+ options.tls_cacertdir)) != LDAP_SUCCESS)
+ fatal ("ldap_set_option(LDAP_OPT_X_TLS_CACERTDIR): %s",
+ ldap_err2string (rc));
+ debug3 ("Set TLS CA cert dir %s ", options.tls_cacertdir);
+ }
+
+ /* require cert? */
+ if ((rc = ldap_set_option (NULL, LDAP_OPT_X_TLS_REQUIRE_CERT,
+ &options.tls_checkpeer)) != LDAP_SUCCESS)
+ fatal ("ldap_set_option(LDAP_OPT_X_TLS_REQUIRE_CERT): %s",
+ ldap_err2string (rc));
+ debug3 ("Set TLS check peer to %d ", options.tls_checkpeer);
+
+ /* set cipher suite, certificate and private key: */
+ if (options.tls_ciphers != NULL) {
+ if ((rc = ldap_set_option (NULL, LDAP_OPT_X_TLS_CIPHER_SUITE,
+ options.tls_ciphers)) != LDAP_SUCCESS)
+ fatal ("ldap_set_option(LDAP_OPT_X_TLS_CIPHER_SUITE): %s",
+ ldap_err2string (rc));
+ debug3 ("Set TLS ciphers to %s ", options.tls_ciphers);
+ }
+
+ /* cert file */
+ if (options.tls_cert != NULL) {
+ if ((rc = ldap_set_option (NULL, LDAP_OPT_X_TLS_CERTFILE,
+ options.tls_cert)) != LDAP_SUCCESS)
+ fatal ("ldap_set_option(LDAP_OPT_X_TLS_CERTFILE): %s",
+ ldap_err2string (rc));
+ debug3 ("Set TLS cert file %s ", options.tls_cert);
+ }
+
+ /* key file */
+ if (options.tls_key != NULL) {
+ if ((rc = ldap_set_option (NULL, LDAP_OPT_X_TLS_KEYFILE,
+ options.tls_key)) != LDAP_SUCCESS)
+ fatal ("ldap_set_option(LDAP_OPT_X_TLS_KEYFILE): %s",
+ ldap_err2string (rc));
+ debug3 ("Set TLS key file %s ", options.tls_key);
+ }
+#endif
+#ifdef HAVE_LDAP_INITIALIZE
+ if (options.uri != NULL) {
+ if ((rc = ldap_initialize (&ld, options.uri)) != LDAP_SUCCESS)
+ fatal ("ldap_initialize %s", ldap_err2string (rc));
+ debug3 ("LDAP initialize %s", options.uri);
+ }
+ }
+#endif /* HAVE_LDAP_INTITIALIZE */
+
+ /* continue with opening */
+ if ((ld == NULL) && (options.host != NULL)) {
+#ifdef HAVE_LDAP_INIT
+ if ((ld = ldap_init (options.host, options.port)) == NULL)
+ fatal ("ldap_init failed");
+ debug3 ("LDAP init %s:%d", options.host, options.port);
+#else
+ if ((ld = ldap_open (options.host, options.port)) == NULL)
+ fatal ("ldap_open failed");
+ debug3 ("LDAP open %s:%d", options.host, options.port);
+#endif /* HAVE_LDAP_INIT */
+ }
+
+ if (ld == NULL)
+ fatal ("no way to open ldap");
+
+#if defined(HAVE_LDAP_SET_OPTION) && defined(LDAP_OPT_X_TLS)
+ if (options.ssl == SSL_LDAPS) {
+ if ((rc = ldap_set_option (ld, LDAP_OPT_X_TLS, &options.tls_checkpeer)) != LDAP_SUCCESS)
+ fatal ("ldap_set_option(LDAP_OPT_X_TLS) %s", ldap_err2string (rc));
+ debug3 ("LDAP set LDAP_OPT_X_TLS_%d", options.tls_checkpeer);
+ }
+#endif /* LDAP_OPT_X_TLS */
+
+#if defined(HAVE_LDAP_SET_OPTION) && defined(LDAP_OPT_PROTOCOL_VERSION)
+ (void) ldap_set_option (ld, LDAP_OPT_PROTOCOL_VERSION,
+ &options.ldap_version);
+#else
+ ld->ld_version = options.ldap_version;
+#endif
+ debug3 ("LDAP set version to %d", options.ldap_version);
+
+#if LDAP_SET_REBIND_PROC_ARGS == 3
+ ldap_set_rebind_proc (ld, _rebind_proc, NULL);
+#elif LDAP_SET_REBIND_PROC_ARGS == 2
+ ldap_set_rebind_proc (ld, _rebind_proc);
+#else
+#warning unknown LDAP_SET_REBIND_PROC_ARGS
+#endif
+ debug3 ("LDAP set rebind proc");
+
+#if defined(HAVE_LDAP_SET_OPTION) && defined(LDAP_OPT_DEREF)
+ (void) ldap_set_option (ld, LDAP_OPT_DEREF, &options.deref);
+#else
+ ld->ld_deref = options.deref;
+#endif
+ debug3 ("LDAP set deref to %d", options.deref);
+
+#if defined(HAVE_LDAP_SET_OPTION) && defined(LDAP_OPT_TIMELIMIT)
+ (void) ldap_set_option (ld, LDAP_OPT_TIMELIMIT,
+ &options.timelimit);
+#else
+ ld->ld_timelimit = options.timelimit;
+#endif
+ debug3 ("LDAP set timelimit to %d", options.timelimit);
+
+#if defined(HAVE_LDAP_SET_OPTION) && defined(LDAP_X_OPT_CONNECT_TIMEOUT)
+ /*
+ * This is a new option in the Netscape SDK which sets
+ * the TCP connect timeout. For want of a better value,
+ * we use the bind_timelimit to control this.
+ */
+ timeout = options.bind_timelimit * 1000;
+ (void) ldap_set_option (ld, LDAP_X_OPT_CONNECT_TIMEOUT, &timeout);
+ debug3 ("LDAP set opt connect timeout to %d", timeout);
+#endif
+
+#if defined(HAVE_LDAP_SET_OPTION) && defined(LDAP_OPT_NETWORK_TIMEOUT)
+ tv.tv_sec = options.bind_timelimit;
+ tv.tv_usec = 0;
+ (void) ldap_set_option (ld, LDAP_OPT_NETWORK_TIMEOUT, &tv);
+ debug3 ("LDAP set opt network timeout to %ld.0", tv.tv_sec);
+#endif
+
+#if defined(HAVE_LDAP_SET_OPTION) && defined(LDAP_OPT_REFERRALS)
+ (void) ldap_set_option (ld, LDAP_OPT_REFERRALS,
+ options.referrals ? LDAP_OPT_ON : LDAP_OPT_OFF);
+ debug3 ("LDAP set referrals to %d", options.referrals);
+#endif
+
+#if defined(HAVE_LDAP_SET_OPTION) && defined(LDAP_OPT_RESTART)
+ (void) ldap_set_option (ld, LDAP_OPT_RESTART,
+ options.restart ? LDAP_OPT_ON : LDAP_OPT_OFF);
+ debug3 ("LDAP set restart to %d", options.restart);
+#endif
+
+#ifdef HAVE_LDAP_START_TLS_S
+ if (options.ssl == SSL_START_TLS) {
+ int version;
+
+ if (ldap_get_option (ld, LDAP_OPT_PROTOCOL_VERSION, &version)
+ == LDAP_SUCCESS) {
+ if (version < LDAP_VERSION3) {
+ version = LDAP_VERSION3;
+ (void) ldap_set_option (ld, LDAP_OPT_PROTOCOL_VERSION,
+ &version);
+ debug3 ("LDAP set version to %d", version);
+ }
+ }
+
+ if ((rc = ldap_start_tls_s (ld, NULL, NULL)) != LDAP_SUCCESS)
+ fatal ("ldap_starttls_s: %s", ldap_err2string (rc));
+ debug3 ("LDAP start TLS");
+ }
+#endif /* HAVE_LDAP_START_TLS_S */
+ }
+
+ if ((msgid = ldap_simple_bind (ld, options.binddn,
+ options.bindpw)) == -1) {
+ ld_errno = ldap_get_lderrno (ld, 0, 0);
+
+ error ("ldap_simple_bind %s", ldap_err2string (ld_errno));
+ reconnect++;
+ goto retry;
+ }
+ debug3 ("LDAP simple bind (%s)", options.binddn);
+
+ timeout.tv_sec = options.bind_timelimit;
+ timeout.tv_usec = 0;
+ if ((rc = ldap_result (ld, msgid, FALSE, &timeout, &result)) < 1) {
+ ld_errno = ldap_get_lderrno (ld, 0, 0);
+
+ error ("ldap_result %s", ldap_err2string (ld_errno));
+ reconnect++;
+ goto retry;
+ }
+ debug3 ("LDAP result in time");
+
+#if defined(HAVE_LDAP_PARSE_RESULT) && defined(HAVE_LDAP_CONTROLS_FREE)
+ controls = NULL;
+ if ((parserc = ldap_parse_result (ld, result, &rc, 0, 0, 0, &controls, TRUE)) != LDAP_SUCCESS)
+ fatal ("ldap_parse_result %s", ldap_err2string (parserc));
+ debug3 ("LDAP parse result OK");
+
+ if (controls != NULL) {
+ ldap_controls_free (controls);
+ }
+#else
+ rc = ldap_result2error (session->ld, result, TRUE);
+#endif
+ if (rc != LDAP_SUCCESS)
+ fatal ("error trying to bind as user \"%s\" (%s)",
+ options.binddn, ldap_err2string (rc));
+
+ debug2 ("LDAP do connect OK");
+}
+
+void
+process_user (const char *user, FILE *output)
+{
+ LDAPMessage *res, *e;
+ char *buffer;
+ int bufflen, rc, i;
+ struct timeval timeout;
+
+ debug ("LDAP process user");
+
+ /* quick check for attempts to be evil */
+ if ((strchr(user, '(') != NULL) || (strchr(user, ')') != NULL) ||
+ (strchr(user, '*') != NULL) || (strchr(user, '\\') != NULL)) {
+ logit ("illegal user name %s not processed", user);
+ return;
+ }
+
+ /* build filter for LDAP request */
+ bufflen = strlen (LDAPSEARCH_FORMAT) + strlen (user);
+ if (options.ssh_filter != NULL)
+ bufflen += strlen (options.ssh_filter);
+ buffer = xmalloc (bufflen);
+ snprintf(buffer, bufflen, LDAPSEARCH_FORMAT, user, (options.ssh_filter != NULL) ? options.ssh_filter : NULL);
+ buffer[bufflen - 1] = 0;
+
+ debug3 ("LDAP search scope = %d %s", options.scope, buffer);
+
+ timeout.tv_sec = options.timelimit;
+ timeout.tv_usec = 0;
+ if ((rc = ldap_search_st(ld, options.base, options.scope, buffer, attrs, 0, &timeout, &res)) != LDAP_SUCCESS) {
+ error ("ldap_search_st(): %s", ldap_err2string (rc));
+ free (buffer);
+ return;
+ }
+
+ /* free */
+ free (buffer);
+
+ for (e = ldap_first_entry(ld, res); e != NULL; e = ldap_next_entry(ld, e)) {
+ int num;
+ struct berval **keys;
+
+ keys = ldap_get_values_len(ld, e, PUBKEYATTR);
+ num = ldap_count_values_len(keys);
+ for (i = 0 ; i < num ; i++) {
+ char *cp; //, *options = NULL;
+
+ for (cp = keys[i]->bv_val; *cp == ' ' || *cp == '\t'; cp++);
+ if (!*cp || *cp == '\n' || *cp == '#')
+ continue;
+
+ /* We have found the desired key. */
+ fprintf (output, "%s\n", keys[i]->bv_val);
+ }
+
+ ldap_value_free_len(keys);
+ }
+
+ ldap_msgfree(res);
+ debug2 ("LDAP process user finished");
+}
+
+void
+ldap_do_close(void)
+{
+ int rc;
+
+ debug ("LDAP do close");
+ if ((rc = ldap_unbind_ext(ld, NULL, NULL)) != LDAP_SUCCESS)
+ fatal ("ldap_unbind_ext: %s",
+ ldap_err2string (rc));
+
+ ld = NULL;
+ debug2 ("LDAP do close OK");
+ return;
+}
+
Index: openssh-8.8p1/ldapbody.h
===================================================================
--- /dev/null
+++ openssh-8.8p1/ldapbody.h
@@ -0,0 +1,37 @@
+/* $OpenBSD: ldapbody.h,v 1.1 2009/12/03 03:34:42 jfch Exp $ */
+/*
+ * Copyright (c) 2009 Jan F. Chadima. All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 LDAPBODY_H
+#define LDAPBODY_H
+
+#include <stdio.h>
+
+void ldap_checkconfig(void);
+void ldap_do_connect(void);
+void process_user(const char *, FILE *);
+void ldap_do_close(void);
+
+#endif /* LDAPBODY_H */
+
Index: openssh-8.8p1/ldapconf.c
===================================================================
--- /dev/null
+++ openssh-8.8p1/ldapconf.c
@@ -0,0 +1,711 @@
+/* $OpenBSD: ldapconf.c,v 1.1 2009/12/03 03:34:42 jfch Exp $ */
+/*
+ * Copyright (c) 2009 Jan F. Chadima. All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+#include "ldapincludes.h"
+#include "ldap-helper.h"
+#include "log.h"
+#include "misc.h"
+#include "xmalloc.h"
+#include "ldapconf.h"
+#include <unistd.h>
+#include <string.h>
+
+/* Keyword tokens. */
+
+typedef enum {
+ lBadOption,
+ lHost, lURI, lBase, lBindDN, lBindPW, lRootBindDN,
+ lScope, lDeref, lPort, lTimeLimit, lBind_TimeLimit,
+ lLdap_Version, lBind_Policy, lSSLPath, lSSL, lReferrals,
+ lRestart, lTLS_CheckPeer, lTLS_CaCertFile,
+ lTLS_CaCertDir, lTLS_Ciphers, lTLS_Cert, lTLS_Key,
+ lTLS_RandFile, lLogDir, lDebug, lSSH_Filter,
+ lDeprecated, lUnsupported
+} OpCodes;
+
+/* Textual representations of the tokens. */
+
+static struct {
+ const char *name;
+ OpCodes opcode;
+} keywords[] = {
+ { "URI", lURI },
+ { "Base", lBase },
+ { "BindDN", lBindDN },
+ { "BindPW", lBindPW },
+ { "RootBindDN", lRootBindDN },
+ { "Host", lHost },
+ { "Port", lPort },
+ { "Scope", lScope },
+ { "Deref", lDeref },
+ { "TimeLimit", lTimeLimit },
+ { "TimeOut", lTimeLimit },
+ { "Bind_Timelimit", lBind_TimeLimit },
+ { "Network_TimeOut", lBind_TimeLimit },
+/*
+ * Todo
+ * SIZELIMIT
+ */
+ { "Ldap_Version", lLdap_Version },
+ { "Version", lLdap_Version },
+ { "Bind_Policy", lBind_Policy },
+ { "SSLPath", lSSLPath },
+ { "SSL", lSSL },
+ { "Referrals", lReferrals },
+ { "Restart", lRestart },
+ { "TLS_CheckPeer", lTLS_CheckPeer },
+ { "TLS_ReqCert", lTLS_CheckPeer },
+ { "TLS_CaCertFile", lTLS_CaCertFile },
+ { "TLS_CaCert", lTLS_CaCertFile },
+ { "TLS_CaCertDir", lTLS_CaCertDir },
+ { "TLS_Ciphers", lTLS_Ciphers },
+ { "TLS_Cipher_Suite", lTLS_Ciphers },
+ { "TLS_Cert", lTLS_Cert },
+ { "TLS_Certificate", lTLS_Cert },
+ { "TLS_Key", lTLS_Key },
+ { "TLS_RandFile", lTLS_RandFile },
+/*
+ * Todo
+ * TLS_CRLCHECK
+ * TLS_CRLFILE
+ */
+ { "LogDir", lLogDir },
+ { "Debug", lDebug },
+ { "SSH_Filter", lSSH_Filter },
+ { NULL, lBadOption }
+};
+
+/* Configuration ptions. */
+
+Options options;
+
+/*
+ * Returns the number of the token pointed to by cp or oBadOption.
+ */
+
+static OpCodes
+parse_token(const char *cp, const char *filename, int linenum)
+{
+ u_int i;
+
+ for (i = 0; keywords[i].name; i++)
+ if (strcasecmp(cp, keywords[i].name) == 0)
+ return keywords[i].opcode;
+
+ if (config_warning_config_file)
+ logit("%s: line %d: Bad configuration option: %s",
+ filename, linenum, cp);
+ return lBadOption;
+}
+
+/*
+ * Processes a single option line as used in the configuration files. This
+ * only sets those values that have not already been set.
+ */
+#define WHITESPACE " \t\r\n"
+
+static int
+process_config_line(char *line, const char *filename, int linenum)
+{
+ char *s, **charptr, **xstringptr, *endofnumber, *keyword, *arg;
+ char *rootbinddn = NULL;
+ int opcode, *intptr, value;
+ size_t len;
+
+ /* Strip trailing whitespace */
+ for (len = strlen(line) - 1; len > 0; len--) {
+ if (strchr(WHITESPACE, line[len]) == NULL)
+ break;
+ line[len] = '\0';
+ }
+
+ s = line;
+ /* Get the keyword. (Each line is supposed to begin with a keyword). */
+ if ((keyword = strdelim(&s)) == NULL)
+ return 0;
+ /* Ignore leading whitespace. */
+ if (*keyword == '\0')
+ keyword = strdelim(&s);
+ if (keyword == NULL || !*keyword || *keyword == '\n' || *keyword == '#')
+ return 0;
+
+ opcode = parse_token(keyword, filename, linenum);
+
+ switch (opcode) {
+ case lBadOption:
+ /* don't panic, but count bad options */
+ return -1;
+ /* NOTREACHED */
+
+ case lHost:
+ xstringptr = &options.host;
+parse_xstring:
+ if (!s || *s == '\0')
+ fatal("%s line %d: missing dn",filename,linenum);
+ if (*xstringptr == NULL)
+ *xstringptr = xstrdup(s);
+ return 0;
+
+ case lURI:
+ xstringptr = &options.uri;
+ goto parse_xstring;
+
+ case lBase:
+ xstringptr = &options.base;
+ goto parse_xstring;
+
+ case lBindDN:
+ xstringptr = &options.binddn;
+ goto parse_xstring;
+
+ case lBindPW:
+ charptr = &options.bindpw;
+parse_string:
+ arg = strdelim(&s);
+ if (!arg || *arg == '\0')
+ fatal("%.200s line %d: Missing argument.", filename, linenum);
+ if (*charptr == NULL)
+ *charptr = xstrdup(arg);
+ break;
+
+ case lRootBindDN:
+ xstringptr = &rootbinddn;
+ goto parse_xstring;
+
+ case lScope:
+ intptr = &options.scope;
+ arg = strdelim(&s);
+ if (!arg || *arg == '\0')
+ fatal("%.200s line %d: Missing sub/one/base argument.",
+ filename, linenum);
+ value = 0; /* To avoid compiler warning... */
+ if (strcasecmp(arg, "sub") == 0 ||
+ strcasecmp(arg, "subtree") == 0)
+ value = LDAP_SCOPE_SUBTREE;
+ else if (strcasecmp(arg, "one") == 0)
+ value = LDAP_SCOPE_ONELEVEL;
+ else if (strcasecmp(arg, "base") == 0)
+ value = LDAP_SCOPE_BASE;
+ else
+ fatal("%.200s line %d: Bad sub/one/base argument.",
+ filename, linenum);
+ if (*intptr == -1)
+ *intptr = value;
+ break;
+
+ case lDeref:
+ intptr = &options.scope;
+ arg = strdelim(&s);
+ if (!arg || *arg == '\0')
+ fatal("%.200s line %d: Missing never/searching/finding/always argument.",
+ filename, linenum);
+ value = 0; /* To avoid compiler warning... */
+ if (!strcasecmp(arg, "never"))
+ value = LDAP_DEREF_NEVER;
+ else if (!strcasecmp(arg, "searching"))
+ value = LDAP_DEREF_SEARCHING;
+ else if (!strcasecmp(arg, "finding"))
+ value = LDAP_DEREF_FINDING;
+ else if (!strcasecmp(arg, "always"))
+ value = LDAP_DEREF_ALWAYS;
+ else
+ fatal("%.200s line %d: Bad never/searching/finding/always argument.",
+ filename, linenum);
+ if (*intptr == -1)
+ *intptr = value;
+ break;
+
+ case lPort:
+ intptr = &options.port;
+parse_int:
+ arg = strdelim(&s);
+ if (!arg || *arg == '\0')
+ fatal("%.200s line %d: Missing argument.", filename, linenum);
+ if (arg[0] < '0' || arg[0] > '9')
+ fatal("%.200s line %d: Bad number.", filename, linenum);
+
+ /* Octal, decimal, or hex format? */
+ value = strtol(arg, &endofnumber, 0);
+ if (arg == endofnumber)
+ fatal("%.200s line %d: Bad number.", filename, linenum);
+ if (*intptr == -1)
+ *intptr = value;
+ break;
+
+ case lTimeLimit:
+ intptr = &options.timelimit;
+parse_time:
+ arg = strdelim(&s);
+ if (!arg || *arg == '\0')
+ fatal("%s line %d: missing time value.",
+ filename, linenum);
+ if ((value = convtime(arg)) == -1)
+ fatal("%s line %d: invalid time value.",
+ filename, linenum);
+ if (*intptr == -1)
+ *intptr = value;
+ break;
+
+ case lBind_TimeLimit:
+ intptr = &options.bind_timelimit;
+ goto parse_time;
+
+ case lLdap_Version:
+ intptr = &options.ldap_version;
+ goto parse_int;
+
+ case lBind_Policy:
+ intptr = &options.bind_policy;
+ arg = strdelim(&s);
+ if (!arg || *arg == '\0')
+ fatal("%.200s line %d: Missing soft/hard argument.",
+ filename, linenum);
+ value = 0; /* To avoid compiler warning... */
+ if (strcasecmp(arg, "hard") == 0 ||
+ strcasecmp(arg, "hard_open") == 0 ||
+ strcasecmp(arg, "hard_init") == 0)
+ value = 1;
+ else if (strcasecmp(arg, "soft") == 0)
+ value = 0;
+ else
+ fatal("%.200s line %d: Bad soft/hard argument.",
+ filename, linenum);
+ if (*intptr == -1)
+ break;
+
+ case lSSLPath:
+ charptr = &options.sslpath;
+ goto parse_string;
+
+ case lSSL:
+ intptr = &options.ssl;
+ arg = strdelim(&s);
+ if (!arg || *arg == '\0')
+ fatal("%.200s line %d: Missing yes/no/start_tls argument.",
+ filename, linenum);
+ value = 0; /* To avoid compiler warning... */
+ if (strcasecmp(arg, "yes") == 0 ||
+ strcasecmp(arg, "true") == 0 ||
+ strcasecmp(arg, "on") == 0)
+ value = SSL_LDAPS;
+ else if (strcasecmp(arg, "no") == 0 ||
+ strcasecmp(arg, "false") == 0 ||
+ strcasecmp(arg, "off") == 0)
+ value = SSL_OFF;
+ else if (!strcasecmp (arg, "start_tls"))
+ value = SSL_START_TLS;
+ else
+ fatal("%.200s line %d: Bad yes/no/start_tls argument.",
+ filename, linenum);
+ if (*intptr == -1)
+ *intptr = value;
+ break;
+
+ case lReferrals:
+ intptr = &options.referrals;
+parse_flag:
+ arg = strdelim(&s);
+ if (!arg || *arg == '\0')
+ fatal("%.200s line %d: Missing yes/no argument.",
+ filename, linenum);
+ value = 0; /* To avoid compiler warning... */
+ if (strcasecmp(arg, "yes") == 0 ||
+ strcasecmp(arg, "true") == 0 ||
+ strcasecmp(arg, "on") == 0)
+ value = 1;
+ else if (strcasecmp(arg, "no") == 0 ||
+ strcasecmp(arg, "false") == 0 ||
+ strcasecmp(arg, "off") == 0)
+ value = 0;
+ else
+ fatal("%.200s line %d: Bad yes/no argument.",
+ filename, linenum);
+ if (*intptr == -1)
+ *intptr = value;
+ break;
+
+ case lRestart:
+ intptr = &options.restart;
+ goto parse_flag;
+
+ case lTLS_CheckPeer:
+ intptr = &options.tls_checkpeer;
+ arg = strdelim(&s);
+ if (!arg || *arg == '\0')
+ fatal("%.200s line %d: Missing never/hard/demand/alow/try argument.",
+ filename, linenum);
+ value = 0; /* To avoid compiler warning... */
+ if (strcasecmp(arg, "never") == 0 ||
+ strcasecmp(arg, "no") == 0 ||
+ strcasecmp(arg, "false") == 0 ||
+ strcasecmp(arg, "off") == 0)
+ value = LDAP_OPT_X_TLS_NEVER;
+ else if (strcasecmp(arg, "hard") == 0 ||
+ strcasecmp(arg, "yes") == 0 ||
+ strcasecmp(arg, "true") == 0 ||
+ strcasecmp(arg, "on") == 0)
+ value = LDAP_OPT_X_TLS_HARD;
+ else if (strcasecmp(arg, "demand") == 0)
+ value = LDAP_OPT_X_TLS_DEMAND;
+ else if (strcasecmp(arg, "allow") == 0)
+ value = LDAP_OPT_X_TLS_ALLOW;
+ else if (strcasecmp(arg, "try") == 0)
+ value = LDAP_OPT_X_TLS_TRY;
+ else
+ fatal("%.200s line %d: Bad never/hard/demand/alow/try argument.",
+ filename, linenum);
+ if (*intptr == -1)
+ break;
+
+ case lTLS_CaCertFile:
+ charptr = &options.tls_cacertfile;
+ goto parse_string;
+
+ case lTLS_CaCertDir:
+ charptr = &options.tls_cacertdir;
+ goto parse_string;
+
+ case lTLS_Ciphers:
+ xstringptr = &options.tls_ciphers;
+ goto parse_xstring;
+
+ case lTLS_Cert:
+ charptr = &options.tls_cert;
+ goto parse_string;
+
+ case lTLS_Key:
+ charptr = &options.tls_key;
+ goto parse_string;
+
+ case lTLS_RandFile:
+ charptr = &options.tls_randfile;
+ goto parse_string;
+
+ case lLogDir:
+ charptr = &options.logdir;
+ goto parse_string;
+
+ case lDebug:
+ intptr = &options.debug;
+ goto parse_int;
+
+ case lSSH_Filter:
+ xstringptr = &options.ssh_filter;
+ goto parse_xstring;
+
+ case lDeprecated:
+ debug("%s line %d: Deprecated option \"%s\"",
+ filename, linenum, keyword);
+ return 0;
+
+ case lUnsupported:
+ error("%s line %d: Unsupported option \"%s\"",
+ filename, linenum, keyword);
+ return 0;
+
+ default:
+ fatal("process_config_line: Unimplemented opcode %d", opcode);
+ }
+
+ /* Check that there is no garbage at end of line. */
+ if ((arg = strdelim(&s)) != NULL && *arg != '\0') {
+ fatal("%.200s line %d: garbage at end of line; \"%.200s\".",
+ filename, linenum, arg);
+ }
+ return 0;
+}
+
+/*
+ * Reads the config file and modifies the options accordingly. Options
+ * should already be initialized before this call. This never returns if
+ * there is an error. If the file does not exist, this returns 0.
+ */
+
+void
+read_config_file(const char *filename)
+{
+ FILE *f;
+ char line[1024];
+ int active, linenum;
+ int bad_options = 0;
+ struct stat sb;
+
+ if ((f = fopen(filename, "r")) == NULL)
+ fatal("fopen %s: %s", filename, strerror(errno));
+
+ if (fstat(fileno(f), &sb) == -1)
+ fatal("fstat %s: %s", filename, strerror(errno));
+ if (((sb.st_uid != 0 && sb.st_uid != getuid()) ||
+ (sb.st_mode & 022) != 0))
+ fatal("Bad owner or permissions on %s", filename);
+
+ debug("Reading configuration data %.200s", filename);
+
+ /*
+ * Mark that we are now processing the options. This flag is turned
+ * on/off by Host specifications.
+ */
+ active = 1;
+ linenum = 0;
+ while (fgets(line, sizeof(line), f)) {
+ /* Update line number counter. */
+ linenum++;
+ if (process_config_line(line, filename, linenum) != 0)
+ bad_options++;
+ }
+ fclose(f);
+ if ((bad_options > 0) && config_exclusive_config_file)
+ fatal("%s: terminating, %d bad configuration options",
+ filename, bad_options);
+}
+
+/*
+ * Initializes options to special values that indicate that they have not yet
+ * been set. Read_config_file will only set options with this value. Options
+ * are processed in the following order: command line, user config file,
+ * system config file. Last, fill_default_options is called.
+ */
+
+void
+initialize_options(void)
+{
+ memset(&options, 'X', sizeof(options));
+ options.host = NULL;
+ options.uri = NULL;
+ options.base = NULL;
+ options.binddn = NULL;
+ options.bindpw = NULL;
+ options.scope = -1;
+ options.deref = -1;
+ options.port = -1;
+ options.timelimit = -1;
+ options.bind_timelimit = -1;
+ options.ldap_version = -1;
+ options.bind_policy = -1;
+ options.sslpath = NULL;
+ options.ssl = -1;
+ options.referrals = -1;
+ options.restart = -1;
+ options.tls_checkpeer = -1;
+ options.tls_cacertfile = NULL;
+ options.tls_cacertdir = NULL;
+ options.tls_ciphers = NULL;
+ options.tls_cert = NULL;
+ options.tls_key = NULL;
+ options.tls_randfile = NULL;
+ options.logdir = NULL;
+ options.debug = -1;
+ options.ssh_filter = NULL;
+}
+
+/*
+ * Called after processing other sources of option data, this fills those
+ * options for which no value has been specified with their default values.
+ */
+
+void
+fill_default_options(void)
+{
+ if (options.uri != NULL) {
+ LDAPURLDesc *ludp;
+
+ if (ldap_url_parse(options.uri, &ludp) == LDAP_SUCCESS) {
+ if (options.ssl == -1) {
+ if (strcmp(ludp->lud_scheme, "ldap") == 0)
+ options.ssl = 2;
+ if (strcmp(ludp->lud_scheme, "ldapi") == 0)
+ options.ssl = 0;
+ else if (strcmp(ludp->lud_scheme, "ldaps") == 0)
+ options.ssl = 1;
+ }
+ if (options.host == NULL)
+ options.host = xstrdup (ludp->lud_host);
+ if (options.port == -1)
+ options.port = ludp->lud_port;
+
+ ldap_free_urldesc (ludp);
+ }
+ }
+ if (options.ssl == -1)
+ options.ssl = SSL_START_TLS;
+ if (options.port == -1)
+ options.port = (options.ssl == 0) ? 389 : 636;
+ if (options.uri == NULL) {
+ int len;
+#define MAXURILEN 4096
+
+ options.uri = xmalloc (MAXURILEN);
+ len = snprintf(options.uri, MAXURILEN, "ldap%s://%s:%d",
+ (options.ssl == 0) ? "" : "s", options.host, options.port);
+ options.uri[MAXURILEN - 1] = 0;
+ options.uri = xreallocarray(options.uri, len + 1, 1);
+ }
+ if (options.binddn == NULL)
+ options.binddn = "";
+ if (options.bindpw == NULL)
+ options.bindpw = "";
+ if (options.scope == -1)
+ options.scope = LDAP_SCOPE_SUBTREE;
+ if (options.deref == -1)
+ options.deref = LDAP_DEREF_NEVER;
+ if (options.timelimit == -1)
+ options.timelimit = 10;
+ if (options.bind_timelimit == -1)
+ options.bind_timelimit = 10;
+ if (options.ldap_version == -1)
+ options.ldap_version = 3;
+ if (options.bind_policy == -1)
+ options.bind_policy = 1;
+ if (options.referrals == -1)
+ options.referrals = 1;
+ if (options.restart == -1)
+ options.restart = 1;
+ if (options.tls_checkpeer == -1)
+ options.tls_checkpeer = LDAP_OPT_X_TLS_HARD;
+ if (options.debug == -1)
+ options.debug = 0;
+ if (options.ssh_filter == NULL)
+ options.ssh_filter = "";
+}
+
+static const char *
+lookup_opcode_name(OpCodes code)
+{
+ u_int i;
+
+ for (i = 0; keywords[i].name != NULL; i++)
+ if (keywords[i].opcode == code)
+ return(keywords[i].name);
+ return "UNKNOWN";
+}
+
+static void
+dump_cfg_string(OpCodes code, const char *val)
+{
+ if (val == NULL)
+ debug3("%s <UNDEFINED>", lookup_opcode_name(code));
+ else
+ debug3("%s %s", lookup_opcode_name(code), val);
+}
+
+static void
+dump_cfg_int(OpCodes code, int val)
+{
+ if (val == -1)
+ debug3("%s <UNDEFINED>", lookup_opcode_name(code));
+ else
+ debug3("%s %d", lookup_opcode_name(code), val);
+}
+
+struct names {
+ int value;
+ char *name;
+};
+
+static void
+dump_cfg_namedint(OpCodes code, int val, struct names *names)
+{
+ u_int i;
+
+ if (val == -1)
+ debug3("%s <UNDEFINED>", lookup_opcode_name(code));
+ else {
+ for (i = 0; names[i].value != -1; i++)
+ if (names[i].value == val) {
+ debug3("%s %s", lookup_opcode_name(code), names[i].name);
+ return;
+ }
+ debug3("%s unknown: %d", lookup_opcode_name(code), val);
+ }
+}
+
+static struct names _yesnotls[] = {
+ { 0, "No" },
+ { 1, "Yes" },
+ { 2, "Start_TLS" },
+ { -1, NULL }};
+
+static struct names _scope[] = {
+ { LDAP_SCOPE_BASE, "Base" },
+ { LDAP_SCOPE_ONELEVEL, "One" },
+ { LDAP_SCOPE_SUBTREE, "Sub"},
+ { -1, NULL }};
+
+static struct names _deref[] = {
+ { LDAP_DEREF_NEVER, "Never" },
+ { LDAP_DEREF_SEARCHING, "Searching" },
+ { LDAP_DEREF_FINDING, "Finding" },
+ { LDAP_DEREF_ALWAYS, "Always" },
+ { -1, NULL }};
+
+static struct names _yesno[] = {
+ { 0, "No" },
+ { 1, "Yes" },
+ { -1, NULL }};
+
+static struct names _bindpolicy[] = {
+ { 0, "Soft" },
+ { 1, "Hard" },
+ { -1, NULL }};
+
+static struct names _checkpeer[] = {
+ { LDAP_OPT_X_TLS_NEVER, "Never" },
+ { LDAP_OPT_X_TLS_HARD, "Hard" },
+ { LDAP_OPT_X_TLS_DEMAND, "Demand" },
+ { LDAP_OPT_X_TLS_ALLOW, "Allow" },
+ { LDAP_OPT_X_TLS_TRY, "TRY" },
+ { -1, NULL }};
+
+void
+dump_config(void)
+{
+ dump_cfg_string(lURI, options.uri);
+ dump_cfg_string(lHost, options.host);
+ dump_cfg_int(lPort, options.port);
+ dump_cfg_namedint(lSSL, options.ssl, _yesnotls);
+ dump_cfg_int(lLdap_Version, options.ldap_version);
+ dump_cfg_int(lTimeLimit, options.timelimit);
+ dump_cfg_int(lBind_TimeLimit, options.bind_timelimit);
+ dump_cfg_string(lBase, options.base);
+ dump_cfg_string(lBindDN, options.binddn);
+ dump_cfg_string(lBindPW, options.bindpw);
+ dump_cfg_namedint(lScope, options.scope, _scope);
+ dump_cfg_namedint(lDeref, options.deref, _deref);
+ dump_cfg_namedint(lReferrals, options.referrals, _yesno);
+ dump_cfg_namedint(lRestart, options.restart, _yesno);
+ dump_cfg_namedint(lBind_Policy, options.bind_policy, _bindpolicy);
+ dump_cfg_string(lSSLPath, options.sslpath);
+ dump_cfg_namedint(lTLS_CheckPeer, options.tls_checkpeer, _checkpeer);
+ dump_cfg_string(lTLS_CaCertFile, options.tls_cacertfile);
+ dump_cfg_string(lTLS_CaCertDir, options.tls_cacertdir);
+ dump_cfg_string(lTLS_Ciphers, options.tls_ciphers);
+ dump_cfg_string(lTLS_Cert, options.tls_cert);
+ dump_cfg_string(lTLS_Key, options.tls_key);
+ dump_cfg_string(lTLS_RandFile, options.tls_randfile);
+ dump_cfg_string(lLogDir, options.logdir);
+ dump_cfg_int(lDebug, options.debug);
+ dump_cfg_string(lSSH_Filter, options.ssh_filter);
+}
+
Index: openssh-8.8p1/ldapconf.h
===================================================================
--- /dev/null
+++ openssh-8.8p1/ldapconf.h
@@ -0,0 +1,71 @@
+/* $OpenBSD: ldapconf.c,v 1.1 2009/12/03 03:34:42 jfch Exp $ */
+/*
+ * Copyright (c) 2009 Jan F. Chadima. All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 LDAPCONF_H
+#define LDAPCONF_H
+
+#define SSL_OFF 0
+#define SSL_LDAPS 1
+#define SSL_START_TLS 2
+
+/* Data structure for representing option data. */
+
+typedef struct {
+ char *host;
+ char *uri;
+ char *base;
+ char *binddn;
+ char *bindpw;
+ int scope;
+ int deref;
+ int port;
+ int timelimit;
+ int bind_timelimit;
+ int ldap_version;
+ int bind_policy;
+ char *sslpath;
+ int ssl;
+ int referrals;
+ int restart;
+ int tls_checkpeer;
+ char *tls_cacertfile;
+ char *tls_cacertdir;
+ char *tls_ciphers;
+ char *tls_cert;
+ char *tls_key;
+ char *tls_randfile;
+ char *logdir;
+ int debug;
+ char *ssh_filter;
+} Options;
+
+extern Options options;
+
+void read_config_file(const char *);
+void initialize_options(void);
+void fill_default_options(void);
+void dump_config(void);
+
+#endif /* LDAPCONF_H */
Index: openssh-8.8p1/ldapincludes.h
===================================================================
--- /dev/null
+++ openssh-8.8p1/ldapincludes.h
@@ -0,0 +1,41 @@
+/* $OpenBSD: ldapconf.c,v 1.1 2009/12/03 03:34:42 jfch Exp $ */
+/*
+ * Copyright (c) 2009 Jan F. Chadima. All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 LDAPINCLUDES_H
+#define LDAPINCLUDES_H
+
+#include "includes.h"
+
+#ifdef HAVE_LBER_H
+#include <lber.h>
+#endif
+#ifdef HAVE_LDAP_H
+#include <ldap.h>
+#endif
+#ifdef HAVE_LDAP_SSL_H
+#include <ldap_ssl.h>
+#endif
+
+#endif /* LDAPINCLUDES_H */
Index: openssh-8.8p1/ldapmisc.c
===================================================================
--- /dev/null
+++ openssh-8.8p1/ldapmisc.c
@@ -0,0 +1,79 @@
+
+#include "ldapincludes.h"
+#include "ldapmisc.h"
+
+#ifndef HAVE_LDAP_GET_LDERRNO
+int
+ldap_get_lderrno (LDAP * ld, char **m, char **s)
+{
+#ifdef HAVE_LDAP_GET_OPTION
+ int rc;
+#endif
+ int lderrno;
+
+#if defined(HAVE_LDAP_GET_OPTION) && defined(LDAP_OPT_ERROR_NUMBER)
+ if ((rc = ldap_get_option (ld, LDAP_OPT_ERROR_NUMBER, &lderrno)) != LDAP_SUCCESS)
+ return rc;
+#else
+ lderrno = ld->ld_errno;
+#endif
+
+ if (s != NULL) {
+#if defined(HAVE_LDAP_GET_OPTION) && defined(LDAP_OPT_ERROR_STRING)
+ if ((rc = ldap_get_option (ld, LDAP_OPT_ERROR_STRING, s)) != LDAP_SUCCESS)
+ return rc;
+#else
+ *s = ld->ld_error;
+#endif
+ }
+
+ if (m != NULL) {
+#if defined(HAVE_LDAP_GET_OPTION) && defined(LDAP_OPT_MATCHED_DN)
+ if ((rc = ldap_get_option (ld, LDAP_OPT_MATCHED_DN, m)) != LDAP_SUCCESS)
+ return rc;
+#else
+ *m = ld->ld_matched;
+#endif
+ }
+
+ return lderrno;
+}
+#endif
+
+#ifndef HAVE_LDAP_SET_LDERRNO
+int
+ldap_set_lderrno (LDAP * ld, int lderrno, const char *m, const char *s)
+{
+#ifdef HAVE_LDAP_SET_OPTION
+ int rc;
+#endif
+
+#if defined(HAVE_LDAP_SET_OPTION) && defined(LDAP_OPT_ERROR_NUMBER)
+ if ((rc = ldap_set_option (ld, LDAP_OPT_ERROR_NUMBER, &lderrno)) != LDAP_SUCCESS)
+ return rc;
+#else
+ ld->ld_errno = lderrno;
+#endif
+
+ if (s != NULL) {
+#if defined(HAVE_LDAP_SET_OPTION) && defined(LDAP_OPT_ERROR_STRING)
+ if ((rc = ldap_set_option (ld, LDAP_OPT_ERROR_STRING, s)) != LDAP_SUCCESS)
+ return rc;
+#else
+ ld->ld_error = s;
+#endif
+ }
+
+ if (m != NULL) {
+#if defined(HAVE_LDAP_SET_OPTION) && defined(LDAP_OPT_MATCHED_DN)
+ if ((rc = ldap_set_option (ld, LDAP_OPT_MATCHED_DN, m)) != LDAP_SUCCESS)
+ return rc;
+#else
+ ld->ld_matched = m;
+#endif
+ }
+
+ return LDAP_SUCCESS;
+}
+#endif
+
Index: openssh-8.8p1/ldapmisc.h
===================================================================
--- /dev/null
+++ openssh-8.8p1/ldapmisc.h
@@ -0,0 +1,35 @@
+/* $OpenBSD: ldapbody.h,v 1.1 2009/12/03 03:34:42 jfch Exp $ */
+/*
+ * Copyright (c) 2009 Jan F. Chadima. All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 LDAPMISC_H
+#define LDAPMISC_H
+
+#include "ldapincludes.h"
+
+int ldap_get_lderrno (LDAP *, char **, char **);
+int ldap_set_lderrno (LDAP *, int, const char *, const char *);
+
+#endif /* LDAPMISC_H */
+
Index: openssh-8.8p1/openbsd-compat/base64.c
===================================================================
--- openssh-8.8p1.orig/openbsd-compat/base64.c
+++ openssh-8.8p1/openbsd-compat/base64.c
@@ -46,7 +46,7 @@
#include "includes.h"
-#if (!defined(HAVE_B64_NTOP) && !defined(HAVE___B64_NTOP)) || (!defined(HAVE_B64_PTON) && !defined(HAVE___B64_PTON))
+#if (!defined(HAVE_B64_NTOP) && !defined(HAVE___B64_NTOP)) || (!defined(HAVE_B64_PTON) && !defined(HAVE___B64_PTON)) || defined(USE_INTERNAL_B64)
#include <sys/types.h>
#include <sys/param.h>
@@ -129,7 +129,7 @@ static const char Pad64 = '=';
characters followed by one "=" padding character.
*/
-#if !defined(HAVE_B64_NTOP) && !defined(HAVE___B64_NTOP)
+#if !defined(HAVE_B64_NTOP) && !defined(HAVE___B64_NTOP) || defined(USE_INTERNAL_B64)
int
b64_ntop(u_char const *src, size_t srclength, char *target, size_t targsize)
{
@@ -185,7 +185,7 @@ b64_ntop(u_char const *src, size_t srcle
}
#endif /* !defined(HAVE_B64_NTOP) && !defined(HAVE___B64_NTOP) */
-#if !defined(HAVE_B64_PTON) && !defined(HAVE___B64_PTON)
+#if !defined(HAVE_B64_PTON) && !defined(HAVE___B64_PTON) || defined(USE_INTERNAL_B64)
/* skips all whitespace anywhere.
converts characters, four at a time, starting at (or after)
Index: openssh-8.8p1/openbsd-compat/base64.h
===================================================================
--- openssh-8.8p1.orig/openbsd-compat/base64.h
+++ openssh-8.8p1/openbsd-compat/base64.h
@@ -45,16 +45,16 @@
#include "includes.h"
-#ifndef HAVE___B64_NTOP
-# ifndef HAVE_B64_NTOP
+#if !defined(HAVE___B64_NTOP) || defined(USE_INTERNAL_B64)
+# if !defined(HAVE_B64_NTOP) || defined(USE_INTERNAL_B64)
int b64_ntop(u_char const *src, size_t srclength, char *target,
size_t targsize);
# endif /* !HAVE_B64_NTOP */
# define __b64_ntop(a,b,c,d) b64_ntop(a,b,c,d)
#endif /* HAVE___B64_NTOP */
-#ifndef HAVE___B64_PTON
-# ifndef HAVE_B64_PTON
+#if !defined(HAVE___B64_PTON) || defined(USE_INTERNAL_B64)
+# if !defined(HAVE_B64_PTON) || defined(USE_INTERNAL_B64)
int b64_pton(char const *src, u_char *target, size_t targsize);
# endif /* !HAVE_B64_PTON */
# define __b64_pton(a,b,c) b64_pton(a,b,c)
Index: openssh-8.8p1/openssh-lpk-openldap.schema
===================================================================
--- /dev/null
+++ openssh-8.8p1/openssh-lpk-openldap.schema
@@ -0,0 +1,21 @@
+#
+# LDAP Public Key Patch schema for use with openssh-ldappubkey
+# useful with PKA-LDAP also
+#
+# Author: Eric AUGE <eau@phear.org>
+#
+# Based on the proposal of : Mark Ruijter
+#
+
+
+# octetString SYNTAX
+attributetype ( 1.3.6.1.4.1.24552.500.1.1.1.13 NAME 'sshPublicKey'
+ DESC 'MANDATORY: OpenSSH Public key'
+ EQUALITY octetStringMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.40 )
+
+# printableString SYNTAX yes|no
+objectclass ( 1.3.6.1.4.1.24552.500.1.1.2.0 NAME 'ldapPublicKey' SUP top AUXILIARY
+ DESC 'MANDATORY: OpenSSH LPK objectclass'
+ MUST ( sshPublicKey $ uid )
+ )
Index: openssh-8.8p1/openssh-lpk-sun.schema
===================================================================
--- /dev/null
+++ openssh-8.8p1/openssh-lpk-sun.schema
@@ -0,0 +1,23 @@
+#
+# LDAP Public Key Patch schema for use with openssh-ldappubkey
+# useful with PKA-LDAP also
+#
+# Author: Eric AUGE <eau@phear.org>
+#
+# Schema for Sun Directory Server.
+# Based on the original schema, modified by Stefan Fischer.
+#
+
+dn: cn=schema
+
+# octetString SYNTAX
+attributeTypes: ( 1.3.6.1.4.1.24552.500.1.1.1.13 NAME 'sshPublicKey'
+ DESC 'MANDATORY: OpenSSH Public key'
+ EQUALITY octetStringMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.40 )
+
+# printableString SYNTAX yes|no
+objectClasses: ( 1.3.6.1.4.1.24552.500.1.1.2.0 NAME 'ldapPublicKey' SUP top AUXILIARY
+ DESC 'MANDATORY: OpenSSH LPK objectclass'
+ MUST ( sshPublicKey $ uid )
+ )
Index: openssh-8.8p1/ssh-ldap-helper.8
===================================================================
--- /dev/null
+++ openssh-8.8p1/ssh-ldap-helper.8
@@ -0,0 +1,79 @@
+.\" $OpenBSD: ssh-ldap-helper.8,v 1.1 2010/02/10 23:20:38 markus Exp $
+.\"
+.\" Copyright (c) 2010 Jan F. Chadima. All rights reserved.
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: April 29 2010 $
+.Dt SSH-LDAP-HELPER 8
+.Os
+.Sh NAME
+.Nm ssh-ldap-helper
+.Nd sshd helper program for ldap support
+.Sh SYNOPSIS
+.Nm ssh-ldap-helper
+.Op Fl devw
+.Op Fl f Ar file
+.Op Fl s Ar user
+.Sh DESCRIPTION
+.Nm
+is used by
+.Xr sshd 1
+to access keys provided by an LDAP.
+.Nm
+is disabled by default and can only be enabled in the
+sshd configuration file
+.Pa /etc/ssh/sshd_config
+by setting
+.Cm AuthorizedKeysCommand
+to
+.Dq @LIBEXECDIR@/ssh-ldap-wrapper .
+.Pp
+.Nm
+is not intended to be invoked by the user, but from
+.Xr sshd 8 via
+.Xr ssh-ldap-wrapper .
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl d
+Set the debug mode;
+.Nm
+prints all logs to stderr instead of syslog.
+.It Fl e
+Implies \-w;
+.Nm
+halts if it encounters an unknown item in the ldap.conf file.
+.It Fl f
+.Nm
+uses this file as the ldap configuration file instead of /etc/ssh/ldap.conf (default).
+.It Fl s
+.Nm
+prints out the user's keys to stdout and exits.
+.It Fl v
+Implies \-d;
+increases verbosity.
+.It Fl w
+.Nm
+writes warnings about unknown items in the ldap.conf configuration file.
+.El
+.Sh SEE ALSO
+.Xr sshd 8 ,
+.Xr sshd_config 5 ,
+.Xr ssh-ldap.conf 5 ,
+.Sh HISTORY
+.Nm
+first appeared in
+OpenSSH 5.5 + PKA-LDAP .
+.Sh AUTHORS
+.An Jan F. Chadima Aq jchadima@redhat.com
Index: openssh-8.8p1/ssh-ldap-wrapper
===================================================================
--- /dev/null
+++ openssh-8.8p1/ssh-ldap-wrapper
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+exec @LIBEXECDIR@/ssh-ldap-helper -s "$1"
+
Index: openssh-8.8p1/ssh-ldap.conf.5
===================================================================
--- /dev/null
+++ openssh-8.8p1/ssh-ldap.conf.5
@@ -0,0 +1,376 @@
+.\" $OpenBSD: ssh-ldap.conf.5,v 1.1 2010/02/10 23:20:38 markus Exp $
+.\"
+.\" Copyright (c) 2010 Jan F. Chadima. All rights reserved.
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: may 12 2010 $
+.Dt SSH-LDAP.CONF 5
+.Os
+.Sh NAME
+.Nm ssh-ldap.conf
+.Nd configuration file for ssh-ldap-helper
+.Sh SYNOPSIS
+.Nm /etc/ssh/ldap.conf
+.Sh DESCRIPTION
+.Xr ssh-ldap-helper 8
+reads configuration data from
+.Pa /etc/ssh/ldap.conf
+(or the file specified with
+.Fl f
+on the command line).
+The file contains keyword-argument pairs, one per line.
+Lines starting with
+.Ql #
+and empty lines are interpreted as comments.
+.Pp
+The value starts with the first non-blank character after
+the keyword's name, and terminates at the end of the line,
+or at the last sequence of blanks before the end of the line.
+Quoting values that contain blanks
+may be incorrect, as the quotes would become part of the value.
+The possible keywords and their meanings are as follows (note that
+keywords are case-insensitive, and arguments, on a case by case basis, may be case-sensitive).
+.Bl -tag -width Ds
+.It Cm URI
+The argument(s) are in the form
+.Pa ldap[si]://[name[:port]]
+and specify the URI(s) of an LDAP server(s) to which the
+.Xr ssh-ldap-helper 8
+should connect. The URI scheme may be any of
+.Dq ldap ,
+.Dq ldaps
+or
+.Dq ldapi ,
+which refer to LDAP over TCP, LDAP over SSL (TLS) and LDAP
+over IPC (UNIX domain sockets), respectively.
+Each server's name can be specified as a
+domain-style name or an IP address literal. Optionally, the
+server's name can followed by a ':' and the port number the LDAP
+server is listening on. If no port number is provided, the default
+port for the scheme is used (389 for ldap://, 636 for ldaps://).
+For LDAP over IPC, name is the name of the socket, and no port
+is required, nor allowed; note that directory separators must be
+URL-encoded, like any other characters that are special to URLs;
+A space separated list of URIs may be provided.
+There is no default.
+.It Cm Base
+Specifies the default base Distinguished Name (DN) to use when performing ldap operations.
+The base must be specified as a DN in LDAP format.
+There is no default.
+.It Cm BindDN
+Specifies the default BIND DN to use when connecting to the ldap server.
+The bind DN must be specified as a Distinguished Name in LDAP format.
+There is no default.
+.It Cm BindPW
+Specifies the default password to use when connecting to the ldap server via
+.Cm BindDN .
+There is no default.
+.It Cm RootBindDN
+Intentionaly does nothing. Recognized for compatibility reasons.
+.It Cm Host
+The argument(s) specifies the name(s) of an LDAP server(s) to which the
+.Xr ssh-ldap-helper 8
+should connect. Each server's name can be specified as a
+domain-style name or an IP address and optionally followed by a ':' and
+the port number the ldap server is listening on. A space-separated
+list of hosts may be provided.
+There is no default.
+.Cm Host
+is deprecated in favor of
+.Cm URI .
+.It Cm Port
+Specifies the default port used when connecting to LDAP servers(s).
+The port may be specified as a number.
+The default port is 389 for ldap:// or 636 for ldaps:// respectively.
+.Cm Port
+is deprecated in favor of
+.Cm URI .
+.It Cm Scope
+Specifies the starting point of an LDAP search and the depth from the base DN to which the search should descend.
+There are three options (values) that can be assigned to the
+.Cm Scope parameter:
+.Dq base ,
+.Dq one
+and
+.Dq subtree .
+Alias for the subtree is
+.Dq sub .
+The value
+.Dq base
+is used to indicate searching only the entry at the base DN, resulting in only that entry being returned (keeping in mind that it also has to meet the search filter criteria!).
+The value
+.Dq one
+is used to indicate searching all entries one level under the base DN, but not including the base DN and not including any entries under that one level under the base DN.
+The value
+.Dq subtree
+is used to indicate searching of all entries at all levels under and including the specified base DN.
+The default is
+.Dq subtree .
+.It Cm Deref
+Specifies how alias dereferencing is done when performing a search. There are four
+possible values that can be assigned to the
+.Cm Deref
+parameter:
+.Dq never ,
+.Dq searching ,
+.Dq finding ,
+and
+.Dq always .
+The value
+.Dq never
+means that the aliases are never dereferenced.
+The value
+.Dq searching
+means that the aliases are dereferenced in subordinates of the base object, but
+not in locating the base object of the search.
+The value
+.Dq finding
+means that the aliases are only dereferenced when locating the base object of the search.
+The value
+.Dq always
+means that the aliases are dereferenced both in searching and in locating the base object
+of the search.
+The default is
+.Dq never .
+.It Cm TimeLimit
+Specifies a time limit (in seconds) to use when performing searches.
+The number should be a non-negative integer. A
+.Cm TimeLimit
+of zero (0) specifies that the search time is unlimited. Please note that the server
+may still apply any server-side limit on the duration of a search operation.
+The default value is 10.
+.It Cm TimeOut
+Is an aliast to
+.Cm TimeLimit .
+.It Cm Bind_TimeLimit
+Specifies the timeout (in seconds) after which the poll(2)/select(2)
+following a connect(2) returns in case of no activity.
+The default value is 10.
+.It Cm Network_TimeOut
+Is an alias to
+.Cm Bind_TimeLimit .
+.It Cm Ldap_Version
+Specifies what version of the LDAP protocol should be used.
+The allowed values are 2 or 3. The default is 3.
+.It Cm Version
+Is an alias to
+.Cm Ldap_Version .
+.It Cm Bind_Policy
+Specifies the policy to use for reconnecting to an unavailable LDAP server. There are 2 available values:
+.Dq hard
+and
+.Dq soft.
+.Dq hard has 2 aliases
+.Dq hard_open
+and
+.Dq hard_init .
+The value
+.Dq hard
+means that reconects that the
+.Xr ssh-ldap-helper 8
+tries to reconnect to the LDAP server 5 times before failure. There is exponential backoff before retrying.
+The value
+.Dq soft
+means that
+.Xr ssh-ldap-helper 8
+fails immediately when it cannot connect to the LDAP seerver.
+The deault is
+.Dq hard .
+.It Cm SSLPath
+Specifies the path to the X.509 certificate database.
+There is no default.
+.It Cm SSL
+Specifies whether to use SSL/TLS or not.
+There are three allowed values:
+.Dq yes ,
+.Dq no
+and
+.Dq start_tls
+Both
+.Dq true
+and
+.Dq on
+are the aliases for
+.Dq yes .
+.Dq false
+and
+.Dq off
+are the aliases for
+.Dq no .
+If
+.Dq start_tls
+is specified then StartTLS is used rather than raw LDAP over SSL.
+The default for ldap:// is
+.Dq start_tls ,
+for ldaps://
+.Dq yes
+and
+.Dq no
+for the ldapi:// .
+In case of host based configuration the default is
+.Dq start_tls .
+.It Cm Referrals
+Specifies if the client should automatically follow referrals returned
+by LDAP servers.
+The value can be or
+.Dq yes
+or
+.Dq no .
+.Dq true
+and
+.Dq on
+are the aliases for
+.Dq yes .
+.Dq false
+and
+.Dq off
+are the aliases for
+.Dq no .
+The default is yes.
+.It Cm Restart
+Specifies whether the LDAP client library should restart the select(2) system call when interrupted.
+The value can be or
+.Dq yes
+or
+.Dq no .
+.Dq true
+and
+.Dq on
+are the aliases for
+.Dq yes .
+.Dq false
+and
+.Dq off
+are the aliases for
+.Dq no .
+The default is yes.
+.It Cm TLS_CheckPeer
+Specifies what checks to perform on server certificates in a TLS session,
+if any. The value
+can be specified as one of the following keywords:
+.Dq never ,
+.Dq hard ,
+.Dq demand ,
+.Dq allow
+and
+.Dq try .
+.Dq true ,
+.Dq on
+and
+.Dq yes
+are aliases for
+.Dq hard .
+.Dq false ,
+.Dq off
+and
+.Dq no
+are the aliases for
+.Dq never .
+The value
+.Dq never
+means that the client will not request or check any server certificate.
+The value
+.Dq allow
+means that the server certificate is requested. If no certificate is provided,
+the session proceeds normally. If a bad certificate is provided, it will
+be ignored and the session proceeds normally.
+The value
+.Dq try
+means that the server certificate is requested. If no certificate is provided,
+the session proceeds normally. If a bad certificate is provided,
+the session is immediately terminated.
+The value
+.Dq demand
+means that the server certificate is requested. If no
+certificate is provided, or a bad certificate is provided, the session
+is immediately terminated.
+The value
+.Dq hard
+is the same as
+.Dq demand .
+It requires an SSL connection. In the case of the plain conection the
+session is immediately terminated.
+The default is
+.Dq hard .
+.It Cm TLS_ReqCert
+Is an alias for
+.Cm TLS_CheckPeer .
+.It Cm TLS_CACertFile
+Specifies the file that contains certificates for all of the Certificate
+Authorities the client will recognize.
+There is no default.
+.It Cm TLS_CACert
+Is an alias for
+.Cm TLS_CACertFile .
+.It Cm TLS_CACertDIR
+Specifies the path of a directory that contains Certificate Authority
+certificates in separate individual files. The
+.Cm TLS_CACert
+is always used before
+.Cm TLS_CACertDir .
+The specified directory must be managed with the OpenSSL c_rehash utility.
+There is no default.
+.It Cm TLS_Ciphers
+Specifies acceptable cipher suite and preference order.
+The value should be a cipher specification for OpenSSL,
+e.g.,
+.Dq HIGH:MEDIUM:+SSLv2 .
+The default is
+.Dq ALL .
+.It Cm TLS_Cipher_Suite
+Is an alias for
+.Cm TLS_Ciphers .
+.It Cm TLS_Cert
+Specifies the file that contains the client certificate.
+There is no default.
+.It Cm TLS_Certificate
+Is an alias for
+.Cm TLS_Cert .
+.It Cm TLS_Key
+Specifies the file that contains the private key that matches the certificate
+stored in the
+.Cm TLS_Cert
+file. Currently, the private key must not be protected with a password, so
+it is of critical importance that the key file is protected carefully.
+There is no default.
+.It Cm TLS_RandFile
+Specifies the file to obtain random bits from when /dev/[u]random is
+not available. Generally set to the name of the EGD/PRNGD socket.
+The environment variable RANDFILE can also be used to specify the filename.
+There is no default.
+.It Cm LogDir
+Specifies the directory used for logging by the LDAP client library.
+There is no default.
+.It Cm Debug
+Specifies the debug level used for logging by the LDAP client library.
+There is no default.
+.It Cm SSH_Filter
+Specifies the user filter applied on the LDAP serch.
+The default is no filter.
+.El
+.Sh FILES
+.Bl -tag -width Ds
+.It Pa /etc/ssh/ldap.conf
+Ldap configuration file for
+.Xr ssh-ldap-helper 8 .
+.El
+.Sh "SEE ALSO"
+.Xr ldap.conf 5 ,
+.Xr ssh-ldap-helper 8
+.Sh HISTORY
+.Nm
+first appeared in
+OpenSSH 5.5 + PKA-LDAP .
+.Sh AUTHORS
+.An Jan F. Chadima Aq jchadima@redhat.com
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