Folks,
I've found myself writing a lot of boilerplate pg_hba.conf entries
along the lines of
hostnossl all all 0.0.0.0/0 reject
hostssl all all 0.0.0.0/0 md5
so I thought I'd make it easier to do that from initdb.
What say?
Best,
David.
--
David Fetter <david(at)fetter(dot)org> http://fetter.org/
Phone: +1 415 235 3778
Remember to vote!
Consider donating to Postgres: http://www.postgresql.org/about/donate
>From 5750bafe6169a239f6084d8d2e12b40da422fced Mon Sep 17 00:00:00 2001
From: David Fetter <david.fet...@onelogin.com>
Date: Wed, 11 Dec 2019 18:55:03 -0800
Subject: [PATCH v1] Enable setting pg_hba.conf permissions from initdb
To: hackers
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="------------2.23.0"
This is a multi-part message in MIME format.
--------------2.23.0
Content-Type: text/plain; charset=UTF-8; format=fixed
Content-Transfer-Encoding: 8bit
The new optional arguments are --auth-hostssl and --auth-hostnossl
diff --git a/doc/src/sgml/ref/initdb.sgml b/doc/src/sgml/ref/initdb.sgml
index da5c8f5307..03b76732d1 100644
--- a/doc/src/sgml/ref/initdb.sgml
+++ b/doc/src/sgml/ref/initdb.sgml
@@ -154,6 +154,28 @@ PostgreSQL documentation
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><option>--auth-hostssl=<replaceable class="parameter">authmethod</replaceable></option></term>
+ <listitem>
+ <para>
+ This option specifies the authentication method for users via
+ TLS connections used in <filename>pg_hba.conf</filename>
+ (<literal>hostssl</literal> lines).
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><option>--auth-hostnossl=<replaceable class="parameter">authmethod</replaceable></option></term>
+ <listitem>
+ <para>
+ This option specifies the authentication method for users via
+ non-TLS connections used in <filename>pg_hba.conf</filename>
+ (<literal>hostnossl</literal> lines).
+ </para>
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term><option>--auth-local=<replaceable class="parameter">authmethod</replaceable></option></term>
<listitem>
diff --git a/src/backend/libpq/pg_hba.conf.sample b/src/backend/libpq/pg_hba.conf.sample
index c853e36232..48ef465cca 100644
--- a/src/backend/libpq/pg_hba.conf.sample
+++ b/src/backend/libpq/pg_hba.conf.sample
@@ -87,3 +87,9 @@ host all all ::1/128 @authmethodhost@
@remove-line-for-nolocal@local replication all @authmethodlocal@
host replication all 127.0.0.1/32 @authmethodhost@
host replication all ::1/128 @authmethodhost@
+
+# hostnossl all all 0.0.0.0/0 @authmethodhostnossl@
+# hostnossl all all ::/0 @authmethodhostnossl@
+
+# hostssl all all 0.0.0.0/0 @authmethodhostssl@
+# hostssl all all ::/0 @authmethodhostssl@
diff --git a/src/bin/initdb/initdb.c b/src/bin/initdb/initdb.c
index 1f6d8939be..392f52d21f 100644
--- a/src/bin/initdb/initdb.c
+++ b/src/bin/initdb/initdb.c
@@ -136,6 +136,8 @@ static char *pwfilename = NULL;
static char *superuser_password = NULL;
static const char *authmethodhost = NULL;
static const char *authmethodlocal = NULL;
+static const char *authmethodhostssl = NULL;
+static const char *authmethodhostnossl = NULL;
static bool debug = false;
static bool noclean = false;
static bool do_sync = true;
@@ -438,7 +440,6 @@ replace_token(char **lines, const char *token, const char *replacement)
*
* a sort of poor man's grep -v
*/
-#ifndef HAVE_UNIX_SOCKETS
static char **
filter_lines_with_token(char **lines, const char *token)
{
@@ -461,7 +462,6 @@ filter_lines_with_token(char **lines, const char *token)
return result;
}
-#endif
/*
* get the lines from a text file
@@ -1326,6 +1326,40 @@ setup_config(void)
"@authcomment@",
(strcmp(authmethodlocal, "trust") == 0 || strcmp(authmethodhost, "trust") == 0) ? AUTHTRUST_WARNING : "");
+ if (authmethodhostssl != NULL)
+ {
+ conflines = replace_token(conflines,
+ "# hostssl all all 0.0.0.0/0 @authmethodhostssl@",
+ "hostssl all all 0.0.0.0/0 @authmethodhostssl@");
+ conflines = replace_token(conflines,
+ "# hostssl all all ::/0 @authmethodhostssl@",
+ "hostssl all all ::/0 @authmethodhostssl@");
+ conflines = replace_token(conflines,
+ "@authmethodhostssl@",
+ authmethodhostssl);
+ }
+ else
+ {
+ conflines = filter_lines_with_token(conflines, "@authmethodhostssl@");
+ }
+
+ if (authmethodhostnossl != NULL)
+ {
+ conflines = replace_token(conflines,
+ "# hostnossl all all 0.0.0.0/0 @authmethodhostnossl@",
+ "hostnossl all all 0.0.0.0/0 @authmethodhostnossl@");
+ conflines = replace_token(conflines,
+ "# hostnossl all all ::/0 @authmethodhostnossl@",
+ "hostnossl all all ::/0 @authmethodhostnossl@");
+ conflines = replace_token(conflines,
+ "@authmethodhostnossl@",
+ authmethodhostnossl);
+ }
+ else
+ {
+ conflines = filter_lines_with_token(conflines, "@authmethodhostnossl@");
+ }
+
snprintf(path, sizeof(path), "%s/pg_hba.conf", pg_data);
writefile(path, conflines);
@@ -2327,36 +2361,38 @@ usage(const char *progname)
printf(_("Usage:\n"));
printf(_(" %s [OPTION]... [DATADIR]\n"), progname);
printf(_("\nOptions:\n"));
- printf(_(" -A, --auth=METHOD default authentication method for local connections\n"));
- printf(_(" --auth-host=METHOD default authentication method for local TCP/IP connections\n"));
- printf(_(" --auth-local=METHOD default authentication method for local-socket connections\n"));
- printf(_(" [-D, --pgdata=]DATADIR location for this database cluster\n"));
- printf(_(" -E, --encoding=ENCODING set default encoding for new databases\n"));
- printf(_(" -g, --allow-group-access allow group read/execute on data directory\n"));
- printf(_(" --locale=LOCALE set default locale for new databases\n"));
+ printf(_(" -A, --auth=METHOD default authentication method for local connections\n"));
+ printf(_(" --auth-host=METHOD default authentication method for local TCP/IP connections\n"));
+ printf(_(" --auth-local=METHOD default authentication method for local-socket connections\n"));
+ printf(_(" --auth-hostssl=METHOD default authentication method for TLS connections\n"));
+ printf(_(" --auth-hostnossl=METHOD default authentication method for non-TLS connections\n"));
+ printf(_(" [-D, --pgdata=]DATADIR location for this database cluster\n"));
+ printf(_(" -E, --encoding=ENCODING set default encoding for new databases\n"));
+ printf(_(" -g, --allow-group-access allow group read/execute on data directory\n"));
+ printf(_(" --locale=LOCALE set default locale for new databases\n"));
printf(_(" --lc-collate=, --lc-ctype=, --lc-messages=LOCALE\n"
" --lc-monetary=, --lc-numeric=, --lc-time=LOCALE\n"
- " set default locale in the respective category for\n"
- " new databases (default taken from environment)\n"));
- printf(_(" --no-locale equivalent to --locale=C\n"));
- printf(_(" --pwfile=FILE read password for the new superuser from file\n"));
+ " set default locale in the respective category for\n"
+ " new databases (default taken from environment)\n"));
+ printf(_(" --no-locale equivalent to --locale=C\n"));
+ printf(_(" --pwfile=FILE read password for the new superuser from file\n"));
printf(_(" -T, --text-search-config=CFG\n"
- " default text search configuration\n"));
- printf(_(" -U, --username=NAME database superuser name\n"));
- printf(_(" -W, --pwprompt prompt for a password for the new superuser\n"));
- printf(_(" -X, --waldir=WALDIR location for the write-ahead log directory\n"));
- printf(_(" --wal-segsize=SIZE size of WAL segments, in megabytes\n"));
+ " default text search configuration\n"));
+ printf(_(" -U, --username=NAME database superuser name\n"));
+ printf(_(" -W, --pwprompt prompt for a password for the new superuser\n"));
+ printf(_(" -X, --waldir=WALDIR location for the write-ahead log directory\n"));
+ printf(_(" --wal-segsize=SIZE size of WAL segments, in megabytes\n"));
printf(_("\nLess commonly used options:\n"));
- printf(_(" -d, --debug generate lots of debugging output\n"));
- printf(_(" -k, --data-checksums use data page checksums\n"));
- printf(_(" -L DIRECTORY where to find the input files\n"));
- printf(_(" -n, --no-clean do not clean up after errors\n"));
- printf(_(" -N, --no-sync do not wait for changes to be written safely to disk\n"));
- printf(_(" -s, --show show internal settings\n"));
- printf(_(" -S, --sync-only only sync data directory\n"));
+ printf(_(" -d, --debug generate lots of debugging output\n"));
+ printf(_(" -k, --data-checksums use data page checksums\n"));
+ printf(_(" -L DIRECTORY where to find the input files\n"));
+ printf(_(" -n, --no-clean do not clean up after errors\n"));
+ printf(_(" -N, --no-sync do not wait for changes to be written safely to disk\n"));
+ printf(_(" -s, --show show internal settings\n"));
+ printf(_(" -S, --sync-only only sync data directory\n"));
printf(_("\nOther options:\n"));
- printf(_(" -V, --version output version information, then exit\n"));
- printf(_(" -?, --help show this help, then exit\n"));
+ printf(_(" -V, --version output version information, then exit\n"));
+ printf(_(" -?, --help show this help, then exit\n"));
printf(_("\nIf the data directory is not specified, the environment variable PGDATA\n"
"is used.\n"));
printf(_("\nReport bugs to <pgsql-b...@lists.postgresql.org>.\n"));
@@ -3010,6 +3046,8 @@ main(int argc, char *argv[])
{"auth", required_argument, NULL, 'A'},
{"auth-local", required_argument, NULL, 10},
{"auth-host", required_argument, NULL, 11},
+ {"auth-hostssl", required_argument, NULL, 13},
+ {"auth-hostnossl", required_argument, NULL, 14},
{"pwprompt", no_argument, NULL, 'W'},
{"pwfile", required_argument, NULL, 9},
{"username", required_argument, NULL, 'U'},
@@ -3090,6 +3128,12 @@ main(int argc, char *argv[])
case 11:
authmethodhost = pg_strdup(optarg);
break;
+ case 13:
+ authmethodhostssl = pg_strdup(optarg);
+ break;
+ case 14:
+ authmethodhostnossl = pg_strdup(optarg);
+ break;
case 'D':
pg_data = pg_strdup(optarg);
break;
@@ -3224,6 +3268,10 @@ main(int argc, char *argv[])
check_authmethod_valid(authmethodlocal, auth_methods_local, "local");
check_authmethod_valid(authmethodhost, auth_methods_host, "host");
+ if (authmethodhostssl != NULL)
+ check_authmethod_valid(authmethodhostssl, auth_methods_host, "hostssl");
+ if (authmethodhostnossl != NULL)
+ check_authmethod_valid(authmethodhostnossl, auth_methods_host, "hostnossl");
check_need_password(authmethodlocal, authmethodhost);
--------------2.23.0--
