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initdb: Add options --auth-local and --auth-host

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reviewed by Robert Haas and Pavel Stehule
This commit is contained in:
Peter Eisentraut 2012-02-01 21:18:55 +02:00
parent 69f4f1c357
commit 8a02339e9b
3 changed files with 134 additions and 62 deletions
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31
doc/src/sgml/ref/initdb.sgml
View File

@ -118,10 +118,33 @@ PostgreSQL documentation
<term><option>--auth=<replaceable class="parameter">authmethod</replaceable></option></term>
<listitem>
<para>
This option specifies the authentication method for local users
used in <filename>pg_hba.conf</>. Do not use <literal>trust</>
unless you trust all local users on your system. <literal>Trust</>
is the default for ease of installation.
This option specifies the authentication method for local users used
in <filename>pg_hba.conf</> (<literal>host</literal>
and <literal>local</literal> lines). Do not use <literal>trust</>
unless you trust all local users on your system. <literal>trust</> is
the default for ease of installation.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--auth-host=<replaceable class="parameter">authmethod</replaceable></option></term>
<listitem>
<para>
This option specifies the authentication method for local users via
TCP/IP connections used in <filename>pg_hba.conf</>
(<literal>host</literal> lines).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--auth-local=<replaceable class="parameter">authmethod</replaceable></option></term>
<listitem>
<para>
This option specifies the authentication method for local users via
Unix-domain socket connections used in <filename>pg_hba.conf</>
(<literal>local</literal> lines).
</para>
</listitem>
</varlistentry>

8
src/backend/libpq/pg_hba.conf.sample
View File

@ -79,11 +79,11 @@
@remove-line-for-nolocal@# "local" is for Unix domain socket connections only
@remove-line-for-nolocal@local all all @authmethodlocal@
# IPv4 local connections:
host all all 127.0.0.1/32 @authmethod@
host all all 127.0.0.1/32 @authmethodhost@
# IPv6 local connections:
host all all ::1/128 @authmethod@
host all all ::1/128 @authmethodhost@
# Allow replication connections from localhost, by a user with the
# replication privilege.
@remove-line-for-nolocal@#local replication @default_username@ @authmethodlocal@
#host replication @default_username@ 127.0.0.1/32 @authmethod@
#host replication @default_username@ ::1/128 @authmethod@
#host replication @default_username@ 127.0.0.1/32 @authmethodhost@
#host replication @default_username@ ::1/128 @authmethodhost@

157
src/bin/initdb/initdb.c
View File

@ -64,6 +64,34 @@
/* Ideally this would be in a .h file, but it hardly seems worth the trouble */
extern const char *select_default_timezone(const char *share_path);
static const char *auth_methods_host[] = {"trust", "reject", "md5", "password", "ident", "radius",
#ifdef ENABLE_GSS
"gss",
#endif
#ifdef ENABLE_SSPI
"sspi",
#endif
#ifdef KRB5
"krb5",
#endif
#ifdef USE_PAM
"pam", "pam ",
#endif
#ifdef USE_LDAP
"ldap",
#endif
#ifdef USE_SSL
"cert",
#endif
NULL};
static const char *auth_methods_local[] = {"trust", "reject", "md5", "password", "peer", "radius",
#ifdef USE_PAM
"pam", "pam ",
#endif
#ifdef USE_LDAP
"ldap",
#endif
NULL};
/*
* these values are passed in by makefile defines
@ -84,8 +112,8 @@ static const char *default_text_search_config = "";
static char *username = "";
static bool pwprompt = false;
static char *pwfilename = NULL;
static char *authmethod = "";
static char *authmethodlocal = "";
static const char *authmethodhost = "";
static const char *authmethodlocal = "";
static bool debug = false;
static bool noclean = false;
static bool show_setting = false;
@ -1090,15 +1118,15 @@ setup_config(void)
/* Replace default authentication methods */
conflines = replace_token(conflines,
"@authmethod@",
authmethod);
"@authmethodhost@",
authmethodhost);
conflines = replace_token(conflines,
"@authmethodlocal@",
authmethodlocal);
conflines = replace_token(conflines,
"@authcomment@",
strcmp(authmethod, "trust") != 0 ? "" : AUTHTRUST_WARNING);
(strcmp(authmethodlocal, "trust") == 0 || strcmp(authmethodhost, "trust") == 0) ? AUTHTRUST_WARNING : "");
/* Replace username for replication */
conflines = replace_token(conflines,
@ -2452,6 +2480,8 @@ usage(const char *progname)
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(_(" --locale=LOCALE set default locale for new databases\n"));
@ -2479,6 +2509,50 @@ usage(const char *progname)
printf(_("\nReport bugs to <pgsql-bugs@postgresql.org>.\n"));
}
static void
check_authmethod_unspecified(const char **authmethod)
{
if (*authmethod == NULL || strlen(*authmethod) == 0)
{
authwarning = _("\nWARNING: enabling \"trust\" authentication for local connections\n"
"You can change this by editing pg_hba.conf or using the option -A, or\n"
"--auth-local and --auth-host, the next time you run initdb.\n");
*authmethod = "trust";
}
}
static void
check_authmethod_valid(const char *authmethod, const char **valid_methods, const char *conntype)
{
const char **p;
for (p = valid_methods; *p; p++)
{
if (strcmp(authmethod, *p) == 0)
return;
/* with space = param */
if (strchr(authmethod, ' '))
if (strncmp(authmethod, *p, (authmethod - strchr(authmethod, ' '))) == 0)
return;
}
fprintf(stderr, _("%s: invalid authentication method \"%s\" for \"%s\" connections\n"),
progname, authmethod, conntype);
exit(1);
}
static void
check_need_password(const char *authmethod)
{
if ((strcmp(authmethod, "md5") == 0 ||
strcmp(authmethod, "password") == 0) &&
!(pwprompt || pwfilename))
{
fprintf(stderr, _("%s: must specify a password for the superuser to enable %s authentication\n"), progname, authmethod);
exit(1);
}
}
int
main(int argc, char *argv[])
{
@ -2499,6 +2573,8 @@ main(int argc, char *argv[])
{"no-locale", no_argument, NULL, 8},
{"text-search-config", required_argument, NULL, 'T'},
{"auth", required_argument, NULL, 'A'},
{"auth-local", required_argument, NULL, 10},
{"auth-host", required_argument, NULL, 11},
{"pwprompt", no_argument, NULL, 'W'},
{"pwfile", required_argument, NULL, 9},
{"username", required_argument, NULL, 'U'},
@ -2567,7 +2643,22 @@ main(int argc, char *argv[])
switch (c)
{
case 'A':
authmethod = xstrdup(optarg);
authmethodlocal = authmethodhost = xstrdup(optarg);
/*
* When ident is specified, use peer for local connections.
* Mirrored, when peer is specified, use ident for TCP/IP
* connections.
*/
if (strcmp(authmethodhost, "ident") == 0)
authmethodlocal = "peer";
else if (strcmp(authmethodlocal, "peer") == 0)
authmethodhost = "ident";
break;
case 10:
authmethodlocal = xstrdup(optarg);
break;
case 11:
authmethodhost = xstrdup(optarg);
break;
case 'D':
pg_data = xstrdup(optarg);
@ -2659,56 +2750,14 @@ main(int argc, char *argv[])
exit(1);
}
if (authmethod == NULL || !strlen(authmethod))
{
authwarning = _("\nWARNING: enabling \"trust\" authentication for local connections\n"
"You can change this by editing pg_hba.conf or using the -A option the\n"
"next time you run initdb.\n");
authmethod = "trust";
}
check_authmethod_unspecified(&authmethodlocal);
check_authmethod_unspecified(&authmethodhost);
if (strcmp(authmethod, "md5") != 0 &&
strcmp(authmethod, "peer") != 0 &&
strcmp(authmethod, "ident") != 0 &&
strcmp(authmethod, "trust") != 0 &&
#ifdef USE_PAM
strcmp(authmethod, "pam") != 0 &&
strncmp(authmethod, "pam ", 4) != 0 && /* pam with space = param */
#endif
strcmp(authmethod, "password") != 0
)
check_authmethod_valid(authmethodlocal, auth_methods_local, "local");
check_authmethod_valid(authmethodhost, auth_methods_host, "host");
/*
* Kerberos methods not listed because they are not supported over
* local connections and are rejected in hba.c
*/
{
fprintf(stderr, _("%s: unrecognized authentication method \"%s\"\n"),
progname, authmethod);
exit(1);
}
if ((strcmp(authmethod, "md5") == 0 ||
strcmp(authmethod, "password") == 0) &&
!(pwprompt || pwfilename))
{
fprintf(stderr, _("%s: must specify a password for the superuser to enable %s authentication\n"), progname, authmethod);
exit(1);
}
/*
* When ident is specified, use peer for local connections. Mirrored, when
* peer is specified, use ident for TCP connections.
*/
if (strcmp(authmethod, "ident") == 0)
authmethodlocal = "peer";
else if (strcmp(authmethod, "peer") == 0)
{
authmethodlocal = "peer";
authmethod = "ident";
}
else
authmethodlocal = authmethod;
check_need_password(authmethodlocal);
check_need_password(authmethodhost);
if (strlen(pg_data) == 0)
{