From aafd8eb3844169c46ede5af7a4e2baa0767712b9 Mon Sep 17 00:00:00 2001 From: Vignesh C Date: Fri, 30 Oct 2020 17:58:45 +0530 Subject: [PATCH v4] Improving the connection authorization message for GSS authenticated/encrypted connections. Added log message to include GSS authentication, encryption & principal information. This message will help the user to know if GSS authentication or encryption was used and which GSS principal was used. --- src/backend/utils/init/postinit.c | 80 +++++++++----------------- src/test/kerberos/t/001_auth.pl | 118 +++++++++++++++++++++++++++----------- 2 files changed, 112 insertions(+), 86 deletions(-) diff --git a/src/backend/utils/init/postinit.c b/src/backend/utils/init/postinit.c index d4ab4c7..34d3045 100644 --- a/src/backend/utils/init/postinit.c +++ b/src/backend/utils/init/postinit.c @@ -246,62 +246,38 @@ PerformAuthentication(Port *port) if (Log_connections) { + StringInfoData logmsg; + initStringInfo(&logmsg); if (am_walsender) - { + appendStringInfo(&logmsg, "replication "); + + appendStringInfo(&logmsg, "connection authorized: user=%s", + port->user_name); + if (!am_walsender) + appendStringInfo(&logmsg, " database=%s", port->database_name); + + if (port->application_name != NULL) + appendStringInfo(&logmsg, " application_name=%s", + port->application_name); + #ifdef USE_SSL - if (port->ssl_in_use) - ereport(LOG, - (port->application_name != NULL - ? errmsg("replication connection authorized: user=%s application_name=%s SSL enabled (protocol=%s, cipher=%s, bits=%d, compression=%s)", - port->user_name, - port->application_name, - be_tls_get_version(port), - be_tls_get_cipher(port), - be_tls_get_cipher_bits(port), - be_tls_get_compression(port) ? _("on") : _("off")) - : errmsg("replication connection authorized: user=%s SSL enabled (protocol=%s, cipher=%s, bits=%d, compression=%s)", - port->user_name, - be_tls_get_version(port), - be_tls_get_cipher(port), - be_tls_get_cipher_bits(port), - be_tls_get_compression(port) ? _("on") : _("off")))); - else + if (port->ssl_in_use) + appendStringInfo(&logmsg, " SSL enabled (protocol=%s, cipher=%s, bits=%d, compression=%s)", + be_tls_get_version(port), + be_tls_get_cipher(port), + be_tls_get_cipher_bits(port), + be_tls_get_compression(port) ? _("on") : _("off")); #endif - ereport(LOG, - (port->application_name != NULL - ? errmsg("replication connection authorized: user=%s application_name=%s", - port->user_name, - port->application_name) - : errmsg("replication connection authorized: user=%s", - port->user_name))); - } - else - { -#ifdef USE_SSL - if (port->ssl_in_use) - ereport(LOG, - (port->application_name != NULL - ? errmsg("connection authorized: user=%s database=%s application_name=%s SSL enabled (protocol=%s, cipher=%s, bits=%d, compression=%s)", - port->user_name, port->database_name, port->application_name, - be_tls_get_version(port), - be_tls_get_cipher(port), - be_tls_get_cipher_bits(port), - be_tls_get_compression(port) ? _("on") : _("off")) - : errmsg("connection authorized: user=%s database=%s SSL enabled (protocol=%s, cipher=%s, bits=%d, compression=%s)", - port->user_name, port->database_name, - be_tls_get_version(port), - be_tls_get_cipher(port), - be_tls_get_cipher_bits(port), - be_tls_get_compression(port) ? _("on") : _("off")))); - else +#ifdef ENABLE_GSS + if (be_gssapi_get_princ(port)) + appendStringInfo(&logmsg, " GSS (authenticated=%s, encrypted=%s, principal=%s)", + be_gssapi_get_auth(port) ? _("yes") : _("no"), + be_gssapi_get_enc(port) ? _("yes") : _("no"), + be_gssapi_get_princ(port)); #endif - ereport(LOG, - (port->application_name != NULL - ? errmsg("connection authorized: user=%s database=%s application_name=%s", - port->user_name, port->database_name, port->application_name) - : errmsg("connection authorized: user=%s database=%s", - port->user_name, port->database_name))); - } + + ereport(LOG, errmsg("%s", logmsg.data)); + pfree(logmsg.data); } set_ps_display("startup"); diff --git a/src/test/kerberos/t/001_auth.pl b/src/test/kerberos/t/001_auth.pl index b3aeea9..ec0f669 100644 --- a/src/test/kerberos/t/001_auth.pl +++ b/src/test/kerberos/t/001_auth.pl @@ -16,10 +16,11 @@ use warnings; use TestLib; use PostgresNode; use Test::More; +use Time::HiRes qw(usleep); if ($ENV{with_gssapi} eq 'yes') { - plan tests => 18; + plan tests => 32; } else { @@ -74,6 +75,10 @@ my $kdc_datadir = "${TestLib::tmp_check}/krb5kdc"; my $kdc_pidfile = "${TestLib::tmp_check}/krb5kdc.pid"; my $keytab = "${TestLib::tmp_check}/krb5.keytab"; +my $dbname = 'postgres'; +my $username = 'test1'; +my $application = '001_auth.pl'; + note "setting up Kerberos"; my ($stdout, $krb5_version); @@ -160,6 +165,8 @@ my $node = get_new_node('node'); $node->init; $node->append_conf('postgresql.conf', "listen_addresses = '$hostaddr'"); $node->append_conf('postgresql.conf', "krb_server_keyfile = '$keytab'"); +$node->append_conf('postgresql.conf', "logging_collector = on"); +$node->append_conf('postgresql.conf', "log_connections = on"); $node->start; $node->safe_psql('postgres', 'CREATE USER test1;'); @@ -169,7 +176,7 @@ note "running tests"; # Test connection success or failure, and if success, that query returns true. sub test_access { - my ($node, $role, $query, $expected_res, $gssencmode, $test_name) = @_; + my ($node, $role, $query, $expected_res, $gssencmode, $test_name, $expect_log_msg) = @_; # need to connect over TCP/IP for Kerberos my ($res, $stdoutres, $stderrres) = $node->psql( @@ -192,6 +199,34 @@ sub test_access { is($res, $expected_res, $test_name); } + + # Verify specified log message is logged in the log file. + if ($expect_log_msg ne '') + { + my $expect_log_msg = chomp($expect_log_msg); + my $current_logfiles = slurp_file($node->data_dir . '/current_logfiles'); + note "current_logfiles = $current_logfiles"; + like($current_logfiles, qr|^stderr log/postgresql-.*log$|, + 'current_logfiles is sane'); + + my $lfname = $current_logfiles; + $lfname =~ s/^stderr //; + chomp $lfname; + + # might need to retry if logging collector process is slow... + my $max_attempts = 10 * 10; + my $first_logfile; + for (my $attempts = 0; $attempts < $max_attempts; $attempts++) + { + $first_logfile = slurp_file($node->data_dir . '/' . $lfname); + last if $first_logfile =~ m/$expect_log_msg /; + usleep(100_000); + } + + like($first_logfile, qr/$expect_log_msg/, + 'found expected log file content'); + } + return; } @@ -223,11 +258,11 @@ $node->append_conf('pg_hba.conf', qq{host all all $hostaddr/32 gss map=mymap}); $node->restart; -test_access($node, 'test1', 'SELECT true', 2, '', 'fails without ticket'); +test_access($node, 'test1', 'SELECT true', 2, '', 'fails without ticket', ''); run_log [ $kinit, 'test1' ], \$test1_password or BAIL_OUT($?); -test_access($node, 'test1', 'SELECT true', 2, '', 'fails without mapping'); +test_access($node, 'test1', 'SELECT true', 2, '', 'fails without mapping', ''); $node->append_conf('pg_ident.conf', qq{mymap /^(.*)\@$realm\$ \\1}); $node->restart; @@ -238,42 +273,49 @@ test_access( 'SELECT gss_authenticated AND encrypted from pg_stat_gssapi where pid = pg_backend_pid();', 0, '', - 'succeeds with mapping with default gssencmode and host hba'); + 'succeeds with mapping with default gssencmode and host hba', + "connection authorized: user=$username database=$dbname application_name=$application GSS (authenticated=yes, encrypted=yes, principal=test1\@$realm)" +); + test_access( $node, - "test1", + 'test1', 'SELECT gss_authenticated AND encrypted from pg_stat_gssapi where pid = pg_backend_pid();', 0, - "gssencmode=prefer", - "succeeds with GSS-encrypted access preferred with host hba"); + 'gssencmode=prefer', + 'succeeds with GSS-encrypted access preferred with host hba', + "connection authorized: user=$username database=$dbname application_name=$application GSS (authenticated=yes, encrypted=yes, principal=test1\@$realm)" +); test_access( $node, - "test1", + 'test1', 'SELECT gss_authenticated AND encrypted from pg_stat_gssapi where pid = pg_backend_pid();', 0, - "gssencmode=require", - "succeeds with GSS-encrypted access required with host hba"); + 'gssencmode=require', + 'succeeds with GSS-encrypted access required with host hba', + "connection authorized: user=$username database=$dbname application_name=$application GSS (authenticated=yes, encrypted=yes, principal=test1\@$realm)" +); # Test that we can transport a reasonable amount of data. test_query( $node, - "test1", + 'test1', 'SELECT * FROM generate_series(1, 100000);', qr/^1\n.*\n1024\n.*\n9999\n.*\n100000$/s, - "gssencmode=require", - "receiving 100K lines works"); + 'gssencmode=require', + 'receiving 100K lines works'); test_query( $node, - "test1", + 'test1', "CREATE TABLE mytab (f1 int primary key);\n" . "COPY mytab FROM STDIN;\n" . join("\n", (1 .. 100000)) . "\n\\.\n" . "SELECT COUNT(*) FROM mytab;", qr/^100000$/s, - "gssencmode=require", - "sending 100K lines works"); + 'gssencmode=require', + 'sending 100K lines works'); unlink($node->data_dir . '/pg_hba.conf'); $node->append_conf('pg_hba.conf', @@ -282,20 +324,24 @@ $node->restart; test_access( $node, - "test1", + 'test1', 'SELECT gss_authenticated AND encrypted from pg_stat_gssapi where pid = pg_backend_pid();', 0, - "gssencmode=prefer", - "succeeds with GSS-encrypted access preferred and hostgssenc hba"); + 'gssencmode=prefer', + 'succeeds with GSS-encrypted access preferred and hostgssenc hba', + "connection authorized: user=$username database=$dbname application_name=$application GSS (authenticated=yes, encrypted=yes, principal=test1\@$realm)" +); test_access( $node, - "test1", + 'test1', 'SELECT gss_authenticated AND encrypted from pg_stat_gssapi where pid = pg_backend_pid();', 0, - "gssencmode=require", - "succeeds with GSS-encrypted access required and hostgssenc hba"); -test_access($node, "test1", 'SELECT true', 2, "gssencmode=disable", - "fails with GSS encryption disabled and hostgssenc hba"); + 'gssencmode=require', + 'succeeds with GSS-encrypted access required and hostgssenc hba', + "connection authorized: user=$username database=$dbname application_name=$application GSS (authenticated=yes, encrypted=yes, principal=test1\@$realm)" +); +test_access($node, 'test1', 'SELECT true', 2, 'gssencmode=disable', + 'fails with GSS encryption disabled and hostgssenc hba', ''); unlink($node->data_dir . '/pg_hba.conf'); $node->append_conf('pg_hba.conf', @@ -304,21 +350,24 @@ $node->restart; test_access( $node, - "test1", + 'test1', 'SELECT gss_authenticated and not encrypted from pg_stat_gssapi where pid = pg_backend_pid();', 0, - "gssencmode=prefer", - "succeeds with GSS-encrypted access preferred and hostnogssenc hba, but no encryption" + 'gssencmode=prefer', + 'succeeds with GSS-encrypted access preferred and hostnogssenc hba, but no encryption', + "connection authorized: user=$username database=$dbname application_name=$application GSS (authenticated=yes, encrypted=no, principal=test1\@$realm)" ); -test_access($node, "test1", 'SELECT true', 2, "gssencmode=require", - "fails with GSS-encrypted access required and hostnogssenc hba"); +test_access($node, 'test1', 'SELECT true', 2, 'gssencmode=require', + 'fails with GSS-encrypted access required and hostnogssenc hba', ''); test_access( $node, - "test1", + 'test1', 'SELECT gss_authenticated and not encrypted from pg_stat_gssapi where pid = pg_backend_pid();', 0, - "gssencmode=disable", - "succeeds with GSS encryption disabled and hostnogssenc hba"); + 'gssencmode=disable', + 'succeeds with GSS encryption disabled and hostnogssenc hba', + "connection authorized: user=$username database=$dbname application_name=$application GSS (authenticated=yes, encrypted=no, principal=test1\@$realm)" +); truncate($node->data_dir . '/pg_ident.conf', 0); unlink($node->data_dir . '/pg_hba.conf'); @@ -332,4 +381,5 @@ test_access( 'SELECT gss_authenticated AND encrypted from pg_stat_gssapi where pid = pg_backend_pid();', 0, '', - 'succeeds with include_realm=0 and defaults'); + 'succeeds with include_realm=0 and defaults', + ''); -- 1.8.3.1