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Commitf7431bc

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Explicitly require MIT Kerberos for GSSAPI
WHen building with GSSAPI support, explicitly require MIT Kerberos andcheck for gssapi_ext.h in configure.ac and meson.build. Also adddocumentation explicitly stating that we now require MIT Kerberos whenbuilding with GSSAPI support.Reveiwed by: Johnathan KatzDiscussion:https://postgr.es/m/abcc73d0-acf7-6896-e0dc-f5bc12a61bb1@postgresql.org
1 parent6633cfb commitf7431bc

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7 files changed

+57
-15
lines changed

7 files changed

+57
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lines changed

‎configure‎

Lines changed: 27 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -14104,6 +14104,33 @@ done
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fi
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done
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for ac_header in gssapi/gssapi_ext.h
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do :
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ac_fn_c_check_header_mongrel "$LINENO" "gssapi/gssapi_ext.h" "ac_cv_header_gssapi_gssapi_ext_h" "$ac_includes_default"
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if test "x$ac_cv_header_gssapi_gssapi_ext_h" = xyes; then :
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cat >>confdefs.h <<_ACEOF
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#define HAVE_GSSAPI_GSSAPI_EXT_H 1
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_ACEOF
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else
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for ac_header in gssapi_ext.h
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do :
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ac_fn_c_check_header_mongrel "$LINENO" "gssapi_ext.h" "ac_cv_header_gssapi_ext_h" "$ac_includes_default"
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if test "x$ac_cv_header_gssapi_ext_h" = xyes; then :
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cat >>confdefs.h <<_ACEOF
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#define HAVE_GSSAPI_EXT_H 1
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_ACEOF
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else
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as_fn_error $? "gssapi_ext.h header file is required for GSSAPI" "$LINENO" 5
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fi
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done
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fi
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done
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fi

‎configure.ac‎

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Original file line numberDiff line numberDiff line change
@@ -1562,6 +1562,8 @@ fi
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if test "$with_gssapi" = yes ; then
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AC_CHECK_HEADERS(gssapi/gssapi.h,[],
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[AC_CHECK_HEADERS(gssapi.h,[],[AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
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AC_CHECK_HEADERS(gssapi/gssapi_ext.h,[],
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[AC_CHECK_HEADERS(gssapi_ext.h,[],[AC_MSG_ERROR([gssapi_ext.h header file is required for GSSAPI])])])
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fi
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PGAC_PATH_PROGS(OPENSSL, openssl)

‎doc/src/sgml/client-auth.sgml‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1426,7 +1426,7 @@ omicron bryanh guest1
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The keytab file is generated using the Kerberos software; see the
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Kerberos documentation for details. The following example shows
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doing this using the <application>kadmin</application> tool of
1429-
MIT-compatible Kerberos 5 implementations:
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MIT Kerberos:
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<screen>
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<prompt>kadmin% </prompt><userinput>addprinc -randkey postgres/server.my.domain.org</userinput>
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<prompt>kadmin% </prompt><userinput>ktadd -k krb5.keytab postgres/server.my.domain.org</userinput>

‎doc/src/sgml/installation.sgml‎

Lines changed: 11 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -252,9 +252,9 @@ documentation. See standalone-profile.xsl for details.
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<listitem>
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<para>
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You need <application>Kerberos</application>, <productname>OpenLDAP</productname>,
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and/or <application>PAM</application>, if you want to support authentication
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using those services.
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You need <application>MITKerberos</application> (for GSSAPI),
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<productname>OpenLDAP</productname>,and/or <application>PAM</application>,
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if you want to support authenticationusing those services.
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</para>
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</listitem>
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@@ -1048,9 +1048,9 @@ build-postgresql:
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<term><option>--with-gssapi</option></term>
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<listitem>
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<para>
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Build with support for GSSAPI authentication.On many systems, the
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GSSAPI system (usually a part oftheKerberos installation) is not
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installed in a location
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Build with support for GSSAPI authentication.MIT Kerberos is required
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to be installed for GSSAPI. On many systems,theGSSAPI system (a part
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of the MIT Kerberos installation) is notinstalled in a location
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that is searched by default (e.g., <filename>/usr/include</filename>,
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<filename>/usr/lib</filename>), so you must use the options
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<option>--with-includes</option> and <option>--with-libraries</option> in
@@ -2497,10 +2497,11 @@ ninja install
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<term><option>-Dgssapi={ auto | enabled | disabled }</option></term>
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<listitem>
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<para>
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Build with support for GSSAPI authentication. On many systems, the
2501-
GSSAPI system (usually a part of the Kerberos installation) is not
2502-
installed in a location that is searched by default (e.g.,
2503-
<filename>/usr/include</filename>, <filename>/usr/lib</filename>). In
2500+
Build with support for GSSAPI authentication. MIT Kerberos is required
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to be installed for GSSAPI. On many systems, the GSSAPI system (a part
2502+
of the MIT Kerberos installation) is not installed in a location
2503+
that is searched by default (e.g., <filename>/usr/include</filename>,
2504+
<filename>/usr/lib</filename>). In
25042505
those cases, PostgreSQL will query <command>pkg-config</command> to
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detect the required compiler and linker options. Defaults to auto.
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<filename>meson configure</filename> will check for the required

‎meson.build‎

Lines changed: 10 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -623,6 +623,16 @@ if not gssapiopt.disabled()
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have_gssapi=false
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endif
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626+
ifnot have_gssapi
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elif cc.check_header('gssapi/gssapi_ext.h',dependencies: gssapi,required:false,
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args: test_c_args,include_directories: postgres_inc)
629+
cdata.set('HAVE_GSSAPI_GSSAPI_EXT_H',1)
630+
elif cc.check_header('gssapi_ext.h',args: test_c_args,dependencies: gssapi,required: gssapiopt)
631+
cdata.set('HAVE_GSSAPI_EXT_H',1)
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else
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have_gssapi=false
634+
endif
635+
626636
ifnot have_gssapi
627637
elif cc.has_function('gss_init_sec_context',dependencies: gssapi,
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args: test_c_args,include_directories: postgres_inc)

‎src/backend/libpq/auth.c‎

Lines changed: 3 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -922,8 +922,9 @@ pg_GSS_recvauth(Port *port)
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gss_cred_id_tdelegated_creds;
923923

924924
/*
925-
* Use the configured keytab, if there is one. Unfortunately, Heimdal
926-
* doesn't support the cred store extensions, so use the env var.
925+
* Use the configured keytab, if there is one. As we now require MIT
926+
* Kerberos, we might consider using the credential store extensions in
927+
* the future instead of the environment variable.
927928
*/
928929
if (pg_krb_server_keyfile!=NULL&&pg_krb_server_keyfile[0]!='\0')
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{

‎src/backend/libpq/be-secure-gssapi.c‎

Lines changed: 3 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -526,8 +526,9 @@ secure_open_gssapi(Port *port)
526526
PqGSSRecvLength=PqGSSResultLength=PqGSSResultNext=0;
527527

528528
/*
529-
* Use the configured keytab, if there is one. Unfortunately, Heimdal
530-
* doesn't support the cred store extensions, so use the env var.
529+
* Use the configured keytab, if there is one. As we now require MIT
530+
* Kerberos, we might consider using the credential store extensions in the
531+
* future instead of the environment variable.
531532
*/
532533
if (pg_krb_server_keyfile!=NULL&&pg_krb_server_keyfile[0]!='\0')
533534
{

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